carrier aggregation to improve advanced multimedia broadcast / multicast service

专利摘要:
CARRIER AGGREGATION FOR IMPROVING THE EVOLVED MULTIMEDIA DIFFUSION / MULTIDIFUSION SERVICECarrier aggregation to improve the Evolved Multimedia Broadcast / Broadcast Service (eMBMS) includes the transmission of unidiffusion signaling to a unidiffusion service on an anchor carrier for mobile entities, the transmission of eMBMS signaling on a second carrier other than the carrier anchor for mobile entities for use with unidiffusion signaling, and various techniques for practical application of carrier aggregation to improve eMBMS. In addition, the allocation of subframes used for MBMS in a Single Frequency Network (MBSFN) includes the allocation of at least part of one or more subframes on the other handreserved for single-frame subframes on a mixed carrier to provide an increased allocation of subframes carrying MBSFN information, transmitting MBSFN signals in the increased allocation of subframes, and more detailed aspects.
公开号:BR112013021613A2
申请号:R112013021613-1
申请日:2012-02-23
公开日:2020-12-01
发明作者:Xiaoxia Zhang；Yongbin Wei；Durga Prasad Malladi；Jun Wang；Zhengwei Liu；Gang Bao
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

"CARRIER AGGREGATION FOR IMPROVING MULTIMEDIA BROADCASTING / BROADCASTING SERVICE" Cross Reference to Related Orders This order claims priority according to | 5 35 U.S.C.
S $ 119 (e) of provisional patent application No. 61 / 445,990, filed on February 23, 2011, and U.S. provisional application
No. 61 / 453,468, filed on March 16, 2011, orders that are incorporated herein by reference in their entirety.
Field of the Invention Aspects of the present description generally refer to wireless communication systems, and more particularly, to the provision of carrier aggregation techniques for the improvement of Evolved Multimedia Diffusion / Multidiffusion Service (eMBMS). Basics Wireless communication networks are widely developed to provide various communication services such as voice, video, packet data, sending messages, broadcasting, etc.
These wireless networks can be multiple access networks capable of supporting multiple users by sharing available network resources.
Examples of such multiple access networks include Code Division Multiple Access networks (CDMA), Time Division Multiple Access networks (TDMA), Frequency Division Multiple Access networks (FDMA), Orthogonal FDMA networks (OFDMA) , and FDMA Single Carrier networks (SC-FDMA). As used here, a "carrier" refers to a radio band centered on a defined frequency and used for wireless communications.
A wireless communication network can include a number of base stations that can support communication to various mobile entities, also called user equipment (UE). A UE can communicate with a base station via downlink and uplink. Downlink (or direct link) refers to the communication link from the base station to the UE, and uplink (or reverse link) refers to the communication link from the UE to the base station.
The Long Term Evolution (LTE) of the 3rd Partnership Project. Generation (3GPP) represents an important advance in cellular technology as an evolution of the Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS). The physical LTE layer (PHY) provides a highly efficient way of carrying both data and control information between base stations, such as evolved B Nodes (eNBs), and mobile entities, such as UEs. In previous applications, a method of facilitating high-bandwidth communication for multimedia has been the operation of single frequency network (SFN). SFNs use radio transmitters, such as, for example, eNBs, to communicate with subscriber UEs. In the unidiffusion operation, each eNB is controlled in order to transmit signals carrying information directed to a subscriber UE. The specificity of unidiffusion signaling allows for person-to-person services such as, for example, voice calling, text messaging, or video calling.
In the broadcasting operation, several eNBs in a broadcasting area are controlled to broadcast signals in a synchronized manner, carrying information that can be received and accessed by any subscriber UE in the broadcasted area. The generality of the broadcasting operation allows greater efficiency in the transmission of information of interest to the general public, for example, multimedia broadcasts related to the event. As the demand and system capacity for multimedia related to the event and other broadcast services has increased, system operators have shown an increasing interest in the use of the broadcast operation in 3GPP networks.
In the past, LTE 3GPP technology was basically used for unidifusion service, leaving opportunities for improvements and improvements related to broadcast signaling.
Summary of the Invention Methods, apparatus and systems for providing carrier aggregation techniques for improving eMBMS are described in the detailed description, and certain aspects are summarized below.
This summary and the detailed description below should be interpreted as complementary parts of an integrated description, which parts may include redundant material and / or supplementary material.
An omission in any section does not indicate the priority or relative importance of any element described in the integrated application.
Differences between sections may include “supplementary descriptions of alternative modalities, additional details, or alternative descriptions of identical modalities using different terminology, as should be apparent from the respective descriptions.
In one aspect, an evolved eMBMS transmission method using multiple carriers of a wireless communications system may include the transmission of the Multimedia Broadcast / Multicast Service (MBMS) on signals from a Single Frequency Network (MBSFN) from a base station on a secondary carrier.
The method may additionally include the transmission of information used for the acquisition of a Multicast Control Channel (MCCH) from the base station on a primary carrier, where the base station also transmits at least unidiffusion signaling on the primary carrier.
; "The method may additionally include providing information for acquiring MCCH in dedicated signaling on the primary carrier for one or more retro-compatible carriers carrying eMBMS signals, while including information for acquiring an MCCH on the common signaling on the primary carrier for one or more more non-backward compatible carriers carrying eMBNS signaling.
In a more detailed aspect, the method may include providing information for acquiring MCCH in a System Bearing System (SIB) of the primary carrier.
The SIB can be a System Information Block 13 (SIB13) of the primary carrier.
System information including MCCH acquisition information can be broadcast from the base station.
In an alternative aspect, a smaller portion than all of the information for acquiring MCCH can be included in a primary carrier's SIB (eg SIB13).
In another aspect, the method may include the transmission of MBSFN signaling on the second carrier using a time division duplexing (TDD) protocol configured differently from a TDD protocol used for the primary carrier.
The base station can configure the MBSFN signaling on the primary carrier according to a first TDD protocol, and configure the MBSFN signaling on the second carrier according to a second TDD protocol different from the first TDD protocol.
In a complementary aspect, a mobile entity of the wireless communications system can receive MBSFN signals on the primary and secondary carriers, including information for acquiring MCCH on dedicated signaling on the primary carrier, or on common signaling on the primary carrier.
For example, in one aspect the mobile entity can
: 7 receive information for acquiring MCCH in a SIB, such as SIB13. In another aspect, a method of allocating subframes used for MBSFN can be performed by a base station of a wireless communication system. The method may include allocating at least a portion of one or more subframes on the other hand reserved for unidiffusion subframes on a mixed carrier to provide an increased allocation of subframes carrying the MBSFN information. The method may additionally include the transmission (e.g., broadcast) of MBSFN signals in the increased allocation of subframes from the base station. | The method of allocating subframes may include | additionally the allocation of subframes according to a | Frequency Division Duplexing (FDD) protocol. For example, the method may include the allocation of subframe 5 in the odd radio frames for MBSFN information. In another aspect, the method may include the programming of System Information Blocks (SIBs) and alert in at least one subframe 5 in even radio frames and subframe
0. For an additional example, the method may include allocating at least one of subframes 4 and 9 for MBSFN information. In an alternative aspect, the method of allocating subframes may additionally include allocating subframes according to a Time Division Duplexing (TDD) protocol. For example, the method may include allocating at least one of subframes 1 and 6 for MBSFN information, or using the specific allocation as described for the FDD protocol above. The allocation of subframes between unicast and multicast services may vary in response to demand or other factors. For example, the method of allocating subframes may additionally include allocating subframes to provide an increased allocation of subframes; to accommodate a temporary period of dedicated use of 'carrier for MBSFN.
In such cases, the method may additionally include the reallocation of at least part of one or more subframes on the other hand reserved for unidifusion signaling, in response to the expiration of the temporary period.
In a complementary aspect, a mobile entity of a wireless communications system can perform a method of interpreting MBSFN and unicast signals on a carrier, for example, a carrier with mixed MBSFN and allocated unicast signaling using a method as summarized above .
The method may include determining that an MBSFN signal has an increased allocation of subframes carrying MBSFN information, where one or more subframes previously reserved for unidiffusion signals are allocated instead of multicast signals decoding the MBSFN signal for the increased allocation to provide an output of multicast content.
The method may include additional aspects in addition to the allocation methods summarized above, for example, decoding subframe 5 into odd radio frames for MBSFN, or SIBS information and alerting at least one subframe 5 in even radio frames and subframe 0, in an FDD or TDD protocol.
For an additional example, the method may include decoding at least one of subframes 4 and 9 for MBSFN information in an FDD protocol, or decoding of at least one of subframes 1 and 6 for MBSFN information in a TDD protocol.
The mobile entity can vary its decoding based on changes in the allocation between unicast and MBSFN signals on the carrier, as indicated by the base station.
In related aspects, a wireless communications device can be provided for carrying out any methods and method aspects summarized above.
A device may include, for example, a processor coupled to a memory where the memory maintains instructions for execution by the processor to make the device perform the operations as described above.
Certain aspects of such a device (for example, hardware aspects) can be exemplified by the equipment such as mobile entities or base stations of various types used for wireless communications.
Similarly, an article of manufacture can be provided, including a non-transitory computer-readable medium, keeping the coded instructions, which when executed by a processor, cause a wireless communications device to perform the methods and aspects of the methods as summarized above.
All operations of the above methods can be performed by a network entity of the wireless communication system, using components as described in greater detail elsewhere here.
Although that | any of these methods can be used to provide carrier aggregation for improving eMBMS, the | they can also be used to provide carrier aggregation using other protocols for service | 25 multicast and broadcast multimedia in a system of | wireless cellular communication. | Brief Description of the Figures Figure 1 - is a block diagram illustrating | conceptually an example of a telecommunications system; | Figure 2 - is a block diagram illustrating conceptually an example of a downlink frame structure in a telecommunications system;
Figure 3 - is a block diagram illustrating | conceptually a design of a base station / eNB and a UE configured according to an aspect of the present description;
| Figure 4A - describes a type of continuous carrier aggregation;
Figure 4B - describes a type of non-continuous carrier aggregation;
Figure 5 - describes an aggregation of MAC layer data;
Figure 6A - illustrates an existing allocation of MBSFN reference signals in the MBSFN subframes;
Figure 6B - illustrates an existing allocation of 1 unidiffusion reference signals in non-MBSFN subframes;
Figure 7 - illustrates ways of improving eMBMS using carrier aggregation;
Figures 8 to 11 - illustrate modalities of a methodology for transmission of eMBMS services using multiple carriers, carried out in a network entity;
Figure 12 - illustrates a modality of a device for the transmission of eMBMS services using multiple carriers, according to the methodologies of figures 8 to 11;
Figures 13 to 15 - illustrate modalities of a methodology for receiving eMBMS services using multiple carriers, carried out in a mobile entity;
Figure 16 - illustrates a modality of a device for receiving eMBMS services using multiple carriers, according to the methodologies in figures 13 to 15;
Figures 17 and 18 - illustrate the modalities of an altarpiece slaughterhouse in the transitional service
9/85 * eMBMS using multiple carriers, carried out on a network entity.
Figure 19 - illustrates a modality of a device for the transmission of eMBMS services using multiple carriers, according to the methodologies of | figures 17 and 18; Figures 20 and 21 - illustrate modalities of an alternative methodology for receiving eMBMS services using multiple carriers, carried out in a mobile entity; Figure 22 - illustrates a modality of a device for receiving eMBMS services using multiple carriers, according to the methodologies in figures 20 and 21; Figures 23 to 26 - illustrate the modalities of a methodology for allocating subframes used for eMBMS services with multiple carriers, carried out in a network entity; Figure 27 - illustrates a modality of a device for allocation of subframes used for eMBMS services, according to the methodologies of figures 23 to 26; Figures 29 to 31 - illustrate modalities of a methodology for decoding subframes used for eMBMS services with multiple carriers, performed on a mobile entity; Figure 32 - illustrates a modality of a device for decoding subframes used for eMBMS services, according to the methodologies of figures 29 to 31; Figure 33 - illustrates a modality of a methodology for improving eMBMS using carrier aggregation, performed in a network entity;
Figure 34 - illustrates a modality of a methodology for improving eMBMS using carrier aggregation, performed on a mobile entity; Figures 35A and B - show additional aspects of | 5 “methodology of figure 33; : Figures 36A and B and 37 - show additional aspects of the methodology in figure 34; | Figure 38 - illustrates a modality of a device for improving eMBMS using carrier aggregation, according to the methodologies of figures 33 and 35A and B; | Figure 39 - illustrates a device type | for improving eMBMS using aggregation of | carrier, according to the methodologies of figures 34 and 36AaC.
Detailed Description of the Invention The detailed description presented below, with | in relation to the attached figures, it should serve as a description of several configurations and should not represent the only ones; 20 configurations in which the concepts described here can | be practiced.
The detailed description includes specific details for the purpose of providing an in-depth understanding of the various concepts.
However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details.
In some cases, well-known structures and components are shown in the form of a block diagram in order to avoid obscuring such concepts.
The techniques described here can be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks.
The terms "network" and "system" are often used interchangeably.
A CDMA network can implement a
Ô 1 1 - = 11/85 radio technology such as Access to Universal Terrestrial Radio (UTRA), CDMA2000, etc. UTRA includes Broadband CDMA (WCDMA) and other variations of CDMA. CDMAZ2000 covers the IS-2000, IS-95 and IS-856 standards. A TDMA network can implement radio technology such as the Global System for Mobile Communications (GSM). An OFDMA network can implement radio technology such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE
802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunication System (UMTS). Long Term Evolution (LTE) 3GPP and LTE-Advanced (LTE-A) are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A 1 and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). | cdma2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described here can be used for wireless networks and radio technologies mentioned above in addition to other wireless networks and radio technologies. For the sake of clarity, certain aspects of the techniques are described below for LTE, and the LTE terminology is used in much of the description below.
Figure 1 shows a wireless communication network 100, which can be an LTE network. Wireless network 100 may include a number of eNBs 110 and other network entities. An eNB can be a station that communicates with UEs and | it can also be referred to as a base station, a Node B, an access point, or another term. Each eNB 110a, 110b, 110c can provide communication coverage for a particular geographic area. In 3GPP, the term "cell" can refer to a coverage area of an eNB and / or an eNB subsystem serving that coverage area, depending on the context in which the term is used. An eNB can provide communication coverage for a macro cell, a peak cell, a femto cell and / or other types of cell. A macro cell can cover a relatively large geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs with a service subscription. A peak cell can cover a relatively small geographical area and can allow unrestricted access by UEs with a service subscription. A femto cell can cover a geographic area | relatively small (for example, a house) and can | allow restricted access by UEs having an association with the femto cell (for example, UEs in a Closed Subscriber Group (CSG), UEs for users in a household, etc.).
An eNB for a macro cell can be referred to as an eNB macro. An eNB for a cell peak can be referred to as an eNB peak. An eNB for a femto cell can be referred to as an eNB femto or a domestic eNB (HNB). In the example shown in figure 1, eNBs 1110a, 110b and 110c can be macro eNBs, for macro cells 102a, 102b, and 102c, respectively. The 110x eNB can be an eNB peak for a 102x cell peak. ENBs 110y and 110z can be femto eNBs for femto cells 102y and 102z, respectively. An eNB can support one or multiple cells (for example, three).
Wireless network 100 may also include relay stations 110r. A relay station is a station that receives a transmission of data and / or other information from an upstream station (for example, an eNB: or an UE) and sends a transmission of data and / or other information to a downstream station ( for example, a UE | or an eNB). A relay station can also be a
13/85.
UE that relays transmissions to other UEs. In the example shown in figure 1, a relay station 110r can communicate with eNB 110a and UE 120r in order to facilitate communication between eNB l110a and UE 120r. A relay station can also be referred to as a relay eNB, a relay, etc.
Wireless network 100 can be a heterogeneous network that includes eNBs of different types, for example, macro eNBs, pico eNBs, femto eNBs, retransmitters, etc. These different types of eNBs can have different levels of | transmission power, different coverage areas, and different impact on wireless network interference 100. By | For example, macro eNBs can have a high transmit power level (for example, 20 Watts), while peak eNBs, femto eNBs and retransmitters can have a lower transmit power level (for example, 1 Watt).
Wireless network 100 can support synchronous or asynchronous operation. For synchronized operation, eNBs can have similar frame timing, and transmissions from different eNBs can be aligned | approximately in time. For asynchronous operation, eNBs | may have different frame timings, and transmissions | from different eNBs may not be aligned in | time. The techniques described here can be used for both synchronized and asynchronous operation. | A network controller 130 can couple a set of eNBs and provide coordination and control for those | eNBs. The network controller 130 can communicate with eNBs! 110a through a return access channel. ENBs 110 can also communicate with each other, for example, directly or indirectly through the wired or wireless return access channel. |
14/85 i UEs 120 can be distributed over the entire wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as a terminal, a mobile station, a subscriber unit, a station, etc. A UE can be a cell phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a laptop computer, a cordless phone, a local wireless circuit station (WLL ), Or other mobile entities. A UE may be able to communicate with macro eNBs, pico eNBs, femto eNBs, relays or other network entities. In figure 1, a solid line with double arrows indicates the desired transmissions between a UE and a server eNB, which is an eNB designated to serve the UE on a downlink and / or an uplink. A dashed line with double arrows indicates interference transmissions between a UE and an eNB.
LTE uses orthogonal frequency division multiplexing (OFDM) on downlink and single carrier frequency division multiplexing | 20 (SC-FDM) in uplink. OFDM and SC-FDM divide the system's bandwidth into multiple subcarriers | orthogonal (K) which are also commonly referred to as tones, compartments, etc. Each Ssubportadora can be modulated with data. In general, the modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system's bandwidth. For example, K can be equal to 128, 256, 512, 1024 or 2048 | 30 for the system bandwidth of 1.25, 2.5, 5, 10 or | 20 megahertz (MHz), respectively. The system bandwidth can also be divided into sub-bands. Per ! example, a subband may cover 1.08 MHz, and there may be
1, 2, 4, 8, or 16 sub-bands for the system bandwidth of 1.25, 2.5, 5, 10 or 20 MHz, respectively. i Figure 2 shows a downlink frame structure used in LTE. The downlink transmission time line can be divided into radio frame units. Each radio frame can have a predetermined duration (for example, 10 milliseconds (ms)) and can be divided into 10 subframes with indexes from 0 to 9. Each subframe can include two partitions. Each radio frame can therefore include 20 partitions with indexes from 0 to 19. Each partition can include L symbol periods, for example, 7 symbol periods for a normal cyclic prefix (CP), as shown in figure 2, or 6 symbol periods for an extended cyclic prefix. The normal CP and the extended CP can be referred to here as different types of CP. The periods of symbol 2L in each subframe can receive indexes from 0 to 2L-1. The frequency features. of available time can be divided into resource blocks. Each resource block can cover N subcarriers (for example, 12 subcarriers) in one partition.
In LTE, an eNB can send a primary sync signal (PSS) and a secondary sync signal (SSS) to each cell in the eNB. The primary and secondary synchronization signals can be sent in symbol periods 6 and 5, respectively, in each of the subframes 0 and 5 of each radio frame with the normal cyclic prefix, as shown in figure 2. The | synchronization can be used by UEs for detection | 30 and cell acquisition. The eNB can send a Physical Broadcast Channel (PBCH) in symbol periods 0 to 3 in the | partition 1 of subframe 0. The PBCH can carry a certain | system information.
The eNB can send a Physical Control Format Indicator Channel (PCFICH) in only part of the first symbol period of each subframe, although it is shown throughout the first symbol period in figure 2. PCFICH can carry the number of periods of symbol symbol (M) used for control channels, where M can be equal to 1, 2 or 3 and can change from subframe to subframe.
M can also be equal to 4 for a small system bandwidth, for example, with less than 10 resource blocks.
In the example shown in figure 2, M = 3. The eNB can send a Physical HARQ Indicator Channel (PHICH) and a Physical Downlink Control Channel (PDCCH) in the first M symbol periods of each subframe (M = 3 in figure 2). PHICH can carry information to support hybrid automatic retransmission (HARQ). PDCCH can carry resource allocation information for UEs and control information for downlink channels.
Although not shown in the first symbol period in figure 2, it is understood that PDCCH and PHICH are also included in the first symbol period.
Similarly, PHICH and PDCCH are both in the second and third symbol periods, although not shown in this way in figure 2. eNB can send a Physical Downlink Shared Channel (PDSCH) in the remaining symbol periods of each subframe.
PDSCH can carry data to the UEs programmed for downlink data transmission.
The various signals and channels in LTE are described in 3GPP TS 36.211, entitled "Evolved Universal Terrestrial Radio Access (E-UTRA): Modulation and Physical Channels", which is publicly available.
ENB can send PSS, SSS and PBCH at the center of 1.08 MHz of the system bandwidth used by eNB.
ENB can send PCFICH and PHICH across the entire width rr. 17/85 system bandwidth in each symbol period where these channels are sent. The eNB can send PDCCH to groups of UEs in certain parts of the system's bandwidth. The eNB can send PDSCH to specific UEs in specific parts of the system's bandwidth. The eNB can send PSS, SSS, PBCH, PCFICH and PHICH in broadcast form to all UEs, it can send PDCCH in a unicast form to specific UEs, and it can also send the. PDSCH in a unified way for specific UEs.
A number of resource elements may be available in each symbol period. Each feature element can cover a subcarrier in the symbol period and can be used to send a modulation symbol, which can be a real or complex value. Resource elements not used for a reference signal in each symbol period can be arranged in resource element groups (REGs). Each REG can include four resource elements in a symbol period. The PCFICH can occupy four REGs, which can be spaced almost equally across the frequency, in the symbol period 0. PHICH can occupy three REGs, which can be spread across the frequency, in one or more configurable symbol periods. For example, the three REGs for PHICH can all belong to symbol period 0 or can be spread over symbol periods 0, 1 and 2. PDCCH can occupy 9, 18, 32 or 64 REGs, which can be selected from REGs available, in the first M symbol periods. Only certain combinations of REGs can be allowed for PDCCH.
The EU can know the specific REGs used for PHICH and PCFICH. The UE can seek different combinations of REGs for PDCCH. The number of combinations to search for is typically less than the number of combinations allowed for PDCCH. An eNB can send PDCCH to the UE in any of the combinations that the UE will seek.
A UE may be within the coverage of multiple | eNBs. One of these eNBs can be selected to serve the UE. The eNB server can be selected based on several criteria such as the received power, loss of path, signal-to-noise ratio (SNR), etc. | Figure 3 shows a block diagram of a | design of a base station / eNB 110 and an UE 120, which can be one of the base stations / eNBs and one of the UEs in the figure
1. For a restricted association scenario, base station 110 can be macro eNB l110c in figure 1, and UE 120 can | be the UE 120y. Base station 110 can also be a base station of some other type. Base station 110 can be equipped with antennas 334a to 334t, and UE 120 can be equipped with antennas 352a to 352r. At base station 110, a transmitting processor 320 can receive data from a data source 612 and control information from a controller / processor 340. The control information can be for PBCH, PCFICH, PHICH, | PDCCH, etc. Data can be for PDSCH, etc. O | processor 320 can process (for example, encode and map symbol) the data and control information to obtain data symbols and control symbols, respectively. Processor 320 can also generate reference symbols, for example, for PSS, SSS and cell-specific reference signal. A transmission multi-input and multiple-output (MIMO) processor (TX) 330 can perform spatial processing (eg, pre-coding) on data symbols, control symbols, and / or reference symbols, if - applicable and can provide output symbol streams for 332a to 332t modulators (MODs). Each 332 modulator can
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t i 19/85 process a respective output symbol stream (for example, for OFDM, etc.) to obtain an output sample stream. Each modulator 332 can further process (for example, convert to analog, amplify, filter, and upwardly convert) the output sample stream to obtain a downlink signal. Downlink signals from modulators 332a to 332t can be transmitted via antennas 334a to 634t, respectively.
In UE 120, antennas 352a to 352r can receive downlink signals from base station 110 and can provide received signals to demodulators (DEMODs) 354a to 354r, respectively. Each demodulator 354 can condition (for example, filter, amplify, downwardly convert and digitize) a respective received signal to obtain input samples. Each demodulator 354 can further process the input samples (for example, for OFDM, etc.) to obtain received symbols. A MIMO 356 detector can obtain symbols received from all demodulators 354a through 354r, perform MIMO detection on received symbols if applicable, and provide detected symbols. A receiving processor 358 can process (e.g., demodulate, deinterleave and decode) the detected symbols, provide decoded data to the UE 120 for a 360 data store, and provide decoded control information to a controller / processor 380.
In uplink, at UE 120, a transmission processor 364 can receive and process data (for example, for PUSCH) from a data source 362 and control information (for example, for PUCCH) from the controller / processor 380. Processor 364 can also generate reference symbols for a ro signal - 1 | 20/85 reference. Transmission processor symbols 364 can be pre-encoded by a MIMO TX 366 processor if applicable, further processed by modulators 354a to 354r (eg for SC-FDM, etc.) and transmitted to base station 110. At the station base 110, uplink signals from UE 120 can be received by antennas 334, processed by demodulators 332, detected by a MIMO detector 336 if applicable, and further processed by a receiving processor 338 to obtain decoded data and control information sent by UE 120. Processor 338 can provide decoded data to a data store 339 and control information decoded to the controller / processor 340.
Controllers / processors 340 and 380 can direct operation at base station 110 and UE 120, respectively. processor 340 and / or other processors and modules at base station 110 can perform or direct the execution of various processes to the techniques described here. The processor 380 and / or other processors and modules in the UE 120 can also perform or direct the execution of the functional blocks illustrated in figures 8 and 9 and / or other processes for the techniques described here. Memories 342 and 382 can store data and program codes for base station 110 and UE 120, respectively. A programmer 344 can program UEs for downstream and / or uplink data transmission.
In one configuration, the UE 120 for wireless communication includes mechanisms for detecting interference from an interference base station during a UE connection mode, mechanisms for selecting a feature resulting from the interference base station, mechanisms for obtaining an error rate of a physical downlink control channel in the resulting resource and mechanisms, executable in response to the error rate exceeding a predetermined level, to declare a radio link failure.
In one aspect, the mechanisms mentioned above may be the processor (s), controller / processor 380, memory 382, Receiving processor 358, MIMO detector 356, demodulators 354a, and antennas 352a configured for perform the functions mentioned by the mechanisms mentioned above.
In another aspect, the mechanisms mentioned above can be a module or any device configured to perform the functions mentioned by the mechanisms mentioned above.
LTE-Advanced UEsS Carrier Aggregation use the spectrum in 20 MHz bandwidths allocated in a carrier aggregation of up to a total of 100 MHz (5 component carriers) used for transmission in each direction.
Generally, less traffic is transmitted on the uplink than on the downlink, so that the allocation of spectrum on the uplink can be less than the allocation on the downlink.
For example, if 20 MHz is designated for the uplink, the downlink can receive 100 MHz.
These asymmetric FDD designations will conserve the spectrum and are a good fit for the use of typically asymmetric bandwidth by broadband subscribers.
Types of Carrier Aggregation For LTE-Advanced mobile systems, two types of carrier aggregation (CA) methods have been proposed, continuous CA and non-continuous CA.
They are illustrated in figures 4A and 4B.
Non-continuous AC 450, as shown in figure 4B, is characterized by multiple carriers of
Already. '22/85 available components being separated along the frequency band. On the other hand, continuous AC 400, as shown in figure 4A, is characterized by multiple available component carriers being adjacent to each other. Both non-continuous CA 450 and continuous CA 400 add multiple component / LTE carriers to serve a single LTE-Advanced UE unit.
Multiple RF receiving units and multiple FFTs can be developed with non-continuous AC in UE LTE-Advanced as the carriers are separated along the frequency band. Since non-continuous CA supports data transmissions over multiple separate carriers over a large frequency range, loss of propagation path, Doppler shift and other radio channel characteristics can vary widely across different frequency bands.
Thus, to support broadband data transmission under the non-continuous CA approach, the methods can be used to adaptively adjust the encoding, modulation and transmission power for different component carriers. For example, in an LTE-Advanced system where the improved Node B (eNB) has a fixed transmission power in each component carrier, the effective coverage or bearable modulation and encoding of each component carrier may be different.
Data Aggregation Schemes Figure 5 illustrates aggregation transmission blocks (TBs) of different component carriers 502, 504, 506 in the middle access control layer (MAC) 500 for an International Advanced Mobile Telecommunications (IMT) system -Advanced). With the aggregation of MAC layer data, each component carrier has its own independent hybrid auto-repeat request (HARQ) entity on the MAC 500 layer and its own transmission configuration parameters (for example, transmission power, modulation schemes and encoding, and multiple antenna configurations) on the physical layer. Similarly, physical layer 508, an HARQ entity is provided for each component carrier.
. Control Signaling In general, there are three different approaches to developing control channel signaling for multiple component carriers. The first involves a minor modification of the control structure in LTE systems where each component carrier receives its own coded control channel.
The second method involves the coding together of control channels, of different component carriers and development of control channels in a dedicated component carrier. The control information for multiple component carriers will be integrated as signaling content on that dedicated control channel. As a result, backward compatibility with the control channel structure in LTE systems is maintained, while signaling overhead in the AC is reduced.
Multiple control channels for different component carriers are encoded together and then transmitted across the entire frequency band formed by a third CA method. This approach offers low signaling overhead and high decoding performance on the control channels, at the expense of high power consumption on the UE side. However, this method is not compatible with LTE systems.
Transfer Control
%.
It is preferable to support transmission continuity during the multi-cell transfer procedure when CA is used for UE IMT-Advanced. However, reserving sufficient system resources (ie, component carriers with good transmission quality) for the incoming UE with specific CA configurations and quality of service (QoS) requirements can be a challenge for the next eNB. The reason for this is that the channel conditions of two (or more) adjacent cells (eNBs) may be different for the specific UE. In one approach, the UE measures the performance of only one component carrier in each adjacent cell. This offers similar measurement delay, complexity, and power consumption to LTE systems.
An estimate of the performance of other component carriers in the target neighbor cell can be based on the measurement result of a component carrier. Based on this estimate, the transfer decision and transmission configuration can be determined.
eMBMS and Unidiffusion Signaling in Single Frequency Networks A mechanism to facilitate high-bandwidth communication for multimedia has been the operation of single frequency network (SFN). In particular, the Multimedia Broadcast / Broadcast Service (MBMS) and MBMS for LTE, are also known as evolved MBMS (eMBMS) including, for example, what has recently become known as the multimedia broadcasting frequency network (MBSFN) in the LTE context, you can use such an SFN operation. SFNs use radio transmitters, such as, for example, eNBs, to communicate with subscriber UEs. Groups of eNBs can transmit bidirectional information in a synchronized way, so that the signals
%, reinforce each other instead of interfering with each other.
In the context of eMBMS, there is still a need for single carrier optimization for the transmission of shared content from an LTE network to multiple UEs.
According to the aspects of the present description, a wireless network (for example, a 3GPP network) is provided having the characteristics related to single carrier optimization for eMBMS.
Evolved MBMS provides an efficient way to transmit shared content from an LTE network to multiple mobile entities, such as UEs.
With respect to a physical layer (PHY) from eMBMS to FDD LTE, the channel structure can comprise the partition of time division multiplexing (TDM) resource between an eMBMS and broadcast transmissions on “mixed” carriers, thus allowing flexible and dynamic use of the spectrum.
As used here, a "mixed carrier" refers to a carrier used for both eMBMS and unicast signaling.
Currently, a subset of subframes (up to 60%), known as multimedia broadcast single frequency network (MBSFN) subframes, can be reserved for eMBMS transmission on a mixed carrier.
As such, the current eMBMS project allows a maximum of six out of ten subframes for eMBMS.
An example of subframe allocation for eMBMS is shown in figure 6A, which shows an existing allocation of MBSFN reference signals in the MBSFN subframes, for a single carrier case.
Components shown in figure 6A correspond to those shown in figure 2 with figure 6A showing the individual subcarriers within each partition and the resource block (RB). In LTE 3GPP, RB covers 12 subcarriers over a partition duration of 0.5 ms, with each subcarrier having a bandwidth of 15 kHz covering 180 kHz per RB. Subframes can be allocated for unicast or eMBMS; for example, in one.
sequence of subframes 600 labeled 0, 1, 2, 3, 4, 5, 6, 7, 8 and 59, subframes 0, 4, 5, and 9 can be excluded from eMBMS in FDD. In addition, subframes 0, 1, 5 and 6 can be excluded from eMBMS in time division duplexing (TDD). More specifically, subframes 0, 4, 5 and 9 can be used for PSS / SSS / PBCH / alert / system information blocks (SIBs) and unidiffusion service. The remaining “subframes in the sequence, for example, OS subframes 1, 2, 3, 6, 7 and 8 can be configured as eMBMS subframes.
With continued reference to figure 6A, within each eMBMS 602 subframe, the first 1 or 2 symbols can be used for unidiffusion reference symbols (RSs) and control signaling. A CP length of the first 1 or 2 symbols can follow subframe 0.
A transmission space can occur between the first 1 or 2 symbols and the eMBMS symbols if the CP lengths are different. In related aspects, the overall eMBMS bandwidth utilization can be 42.5% considering an RS overhead (for example, 6 eMBMS subframes and 2 control symbols within each eMBMS subframe).
Known techniques for providing MBSFN RS and unicast RSs typically involve allocating MBSFN RSs in the MBSFN subframes (as shown in Figure 6A), and separately allocating unicast RSs in non-MBSFN subframes. More specifically, as shown in figure 6A, the extended CP of the MBSFN subframe includes MBSFN RSs, but not unicast RSs. In additional related aspects, the unidiffusion RSs may be in the non-eMBMS subframes, as illustrated in the modality of figure 6B, which
Pr a 1 27/85 existing allocation of unidiffusion reference signals in non-MBSFN subframes 652, 654. As figure 6B shows, The normal CP 652 and / or extended CP 654 of the non-MBSFN subframes 652, 654 include RSs of unidiffusion (Ro, Ri, Ra, R3), but not MBSFN RSs (R'1).
Enhancement of eMBMS for Carrier Aggregation As noted above, the encoding, modulation and transmission power for different component carriers may be different. These and other differences can be used to improve eMBMS performance where multiple carriers are available, as described below with reference to figure 7. One of the multiple carriers is designed as a carrier, as noted in the row labels for table 700 shown in the figure
7. An anchor carrier can also be referred to as a "primary carrier". Additional carriers are labeled as Carrier 2 to "N", for example, carriers 2, 3, 4, etc. The following discussion refers to an anchor carrier and a second carrier by example, and does not limit the use of more than two carriers for transmission to an UE. Additional carriers for eMBMS can be configured as described for the second carrier (that is, non-anchor).
The anchor carrier is characterized by the transport of PSS, SSS, PBCH and alert signaling, as described above. Frame allocation 702 can be configured in a variety of ways for the anchor carrier and second carrier. In a 702a mode, the anchor carrier can be configured exclusively for unidiffusion signaling while the second carrier is configured exclusively for eMBMS signaling. The configuration exclusively for unidiffusion signaling includes not allocating any subframes of the carrier for eMBMS signaling. The exclusive configuration for eMBMS signaling includes not allocating any carrier subframes for unidiffusion signaling.
Therefore, for example, the second carrier can be used for eMBMS signaling without the allocated subframes 0/4/5/9 or 0/1/5/6 for unidiffusion signaling. In another modality 702b, the anchor carrier is allocated to both the unifiedcast and eMBMS signaling, as described in the section above, while the second carrier is allocated exclusively to eMBMS signaling. In another modality 702c, both the anchor carrier and the second carrier are allocated to both the unifiedcast and eMBMS signaling.
In modalities where all the subframes of a carrier are allocated for eMBMS signaling, no control symbols need to be reserved for single-broadcast signaling. Unidifusion signaling can be carried on the anchor carrier, with the granting of a crosslink uplink and PCICH for uplink transmissions (if any) carried on the dedicated carrier for eMBMS signaling. This results in a lower overhead for the eMBMS subframes. In addition, a better channel estimate can be achieved in modalities where all sub-frames of a carrier are allocated for eMBMS signaling. The channel estimate can use eMBMS reference signals from neighboring eMBMS subframes to obtain a greater processing gain, since all subframes with eMBMS reference signals are contiguous.
In addition to multiple frame allocations, link service 704 can be configured differently for the anchor carrier and second carrier. In a 704a mode, the anchor carrier is configured for both Hu '29/85% &% uplink (UL) and downlink (DL) signaling, while the second carrier is configured for downlink signaling only. In an alternative modality 704b, both the anchor carrier and the second carrier are configured for both the uplink and downlink signaling. Note that uplink signaling on an eMBMS carrier can be used for various diffusion enhancements, for example, interactive features.
In addition to various frame allocations and link services, where a TDD 706 transmission protocol is used, it can be configured in a variety of ways for the anchor carrier and the second carrier. In a 706a mode, the TDD protocol can be configured identically on the anchor carrier and second carrier. In an alternative 706b modality, the TDD protocol on the second carrier used exclusively for eMBMS is configured in a heavy downlink configuration, that is, with more subframes allocated for downlink, to improve the eMBMS capacity.
Mixed Carrier Configuration under Version 10 Carrier aggregation was introduced in LTE 3GPP Version 10, also referred to here as Version 10, to improve the capacity of the system using a configuration as follows. All component carriers are compatible with Version 8, so older UEs can receive all component carriers. Mixed component carriers, that is, carriers using a mix of single and multicast signaling are exclusively supported in Version 10. Conversely, version 10 does not support dedicated eMBMS signal carriers. A dedicated carrier for eMBMS signaling is sometimes referred to
% r here as a dedicated eMBMS carrier or dedicated component carrier.
When in an RRC IDLE state, mobile entities can camp on the primary carrier, which is also sometimes referred to here as the anchor carrier. When in an RRC CONNECTED state, mobile entities can acquire system information about the secondary carrier (s) | (that is, not primary), by using cross-carrier signaling on the primary carrier. For example, under version 10, the system information for the secondary carriers is carried by the dedicated cross-carrier signaling on the primary carrier. Mobile entities typically do not monitor any System Information Block (SIB) information on any secondary carrier.
Accordingly, to acquire the MBMS parameters for a secondary carrier, each mobile entity must remain connected to the primary carrier to receive the dedicated control signals (for example, messages —RRCCConnectionReconfiguration) necessary to obtain system information for the secondary carriers. By version 10, secondary carriers only include the MBSFN subframe configuration list, which is limited to identifying the secondary carrier's MBSFN subframe allocation. Information on the allocation of MBSFN subframe is not sufficient to access MBSFN information on secondary carriers. Therefore, a connection to the primary carrier may be required to access MBMS information on the secondary carriers. For example, parameters for the acquisition of the Multicast Control Channel (MCCH) as found in SIB 13 are not available on secondary carriers. SIB 13 can be as described in more detail in 3GPP2 TS 36.331.
La + 1 31/85 Therefore, an RRC IDLE mobile entity can receive MBSFN service. only on the primary carrier, even if it is, on the other hand, capable of supporting MBMS on multiple carriers.
Since there are advantages for mobile entities and the wireless system in maintaining UEs in an RRC IDLE state when not using unicast services, these Version 10 limitations can be disadvantageous.
For example, the primary carrier is specific to each UE, and conversely, different UEs can use different primary carriers.
In addition, a particular service may not be available on all primary carriers, since the eMBMS service on a particular carrier is typically carrier specific.
Therefore, a mobile entity in an RRC IDLE state may not be able to receive a particular eMBMS service of interest, unless the mobile entity maintains an RRC CONNECTED state; or, alternatively, the mobile entity scans all available primary carriers to locate the carrier transmitting the eMBMS service of interest and camp on that carrier.
Each approach can result in inefficient use of system resources and impaired response in accessing the desired eMBMS services.
In addition, even when in a connected state, the mobile entity may not be able to obtain information regarding an eMBMS service of interest on a secondary carrier, in the SIB 13 broadcast by the primary carrier.
Improved Acquisition of MBMS Parameters To overcome the above disadvantages, the configuration changes discussed below can be implemented.
According to an alternative for mobile RRC CONNECTED entities, the SIB 13 information for available secondary carriers can be included in the dedicated control signals (for example, messages and the - -—- Pe 32/85 RRCConnectionReconfiguration) transmitted from the primary carrier. The UE can, in this way, obtain all the system information necessary for the use of MBMS information on secondary carriers from the primary carrier. No additional control acquisition activity is necessary, so that UE operation is simplified and the time to acquire MBMS information can be reduced.
According to an alternative for mobile RRC IDLE entities, the MBMS parameters for the secondary carriers are carried using the common control signaling (for example, Diffusion Control Channel (BCCH)) on the primary carrier, instead of (or in addition a) use of dedicated control signaling. One method of doing this may be to expand SIB 13 on the primary carrier to include SIB 13 information for one or more secondary carriers. Alternatively, a new SIB can be introduced on the primary carrier to carry parameters “related to eMBMS for secondary carriers. Note that up to 32 different SIBs are allowed in Version 10, with 13 currently defined, leaving 19 more available. A new SIB can include additional eMBMS parameters for enhancing eMBMS (eg, continuity of service, etc.) for example, as summarized here above.
From the mobile perspective, the UE obtains all the information necessary to access MBMS services on the secondary carriers from the BCCH signaling on the primary carrier. The Physical Downlink Control Channel (PDCCH) for signaling MCCH changes (necessary for decoding the Multicast Traffic Channel (MTCH)) can therefore be transmitted on the primary carrier or secondary carrier. This eliminates
% nr need for UE to remain in an RRC CONNECTED state or to report your interest in a particular MBMS service to a network entity. Therefore, mobile RRC IDLE entities can receive MBMS service at | 5 any secondary carrier available, just as easily as RRC CONNECTED mobile entities.
To improve backward compatibility, the following steps can be taken. For older mobile entities, the dedicated signaling on the primary carrier can be maintained as currently specified in version 10. Therefore, an older UE can obtain all system information from available back-compatible secondary carriers using dedicated signaling, despite subject to the disadvantages noted above. It is contemplated that one or more secondary carriers may not be backward compatible. For non-backward compatible secondary carriers, common signaling on the primary carrier as described above can be adopted.
Improvements in Multicast Control Channel Currently, the MCCH on each carrier is sent separately, as well as the PDCCH used to provide notification of MCCH changes for mobile entities. In one aspect, MCCH for all carriers can be aggregated and transmitted exclusively on the primary carrier. Likewise, PDCCH, which provides notification of MCCH changes, can also be aggregated for all carriers and transmitted exclusively on the primary carrier. Consequently, the UE no longer needs to monitor the PDCCH on secondary carriers. Instead, the UE monitors the PDCCH for MCCH changes only on the primary carrier, and acquires the MCCH from the primary carrier. If the UE finds an MBMS service of interest on a particular secondary carrier, the UE tunes that secondary carrier. If there is no MBMS service of interest on a secondary carrier, the UE does not need to monitor that carrier. However, an increase in MCCH and PDCCH overhead on the primary carrier can result. The increased overhead can be overcome by the advantage of eliminating the need to monitor the PDCCH on secondary carriers and allowing the acquisition of MCCH for all carriers on the primary carrier, as described above.
To reduce UE wake-up time, PDCCH can be configured so that MCCH change notification is allocated to MBSFN subframes, rather than to unicast subframes.
Count Response Messages As this MCCH information is aggregated on the primary carrier, the count response message, being an MCCH message, following MCCH. The following options can be used by a UE to report the count reply message. In a first option, the UE reports the count response message on the primary uplink carrier. In a second option, the UE reports the count response message on an uplink carrier that is associated with the downlink carrier on which the MBMS service of interest is available. This associated uplink bearer may be distinct from the primary bearer.
Increased MBSFN allocation on the secondary carrier As it is not necessary to maintain retractable compatibility on a secondary carrier, subframe allocation on the secondary carrier can be configured to increase the number of subframes used for MBSFN signaling. In a backwards compatible carrier, a maximum of 60% of the subframes can be allocated to MBSFN in a Frequency Division Duplexing (FDD) protocol. The remaining subframes can be allocated to provide the Primary Sync Signal (PSS), the Secondary Sync Signal (SSS), the Physical Broadcast Channel (PBCH), alert and SIBs. PSS and SSS are transmitted in subframes O and 5, while PBCH is transmitted in subframe 0. Alert can be transmitted in subframes 0, 4, 5 and 9; therefore, these subframes are not available for MBSFN signals.
To increase the subframe allocation for MBSFN signaling in FDD, Subframe 5 in odd radio frames can be allocated to the Physical Multicast Channel (PMCH), as long as the last two symbols in subframe 5 are reserved for PSS / SSS symbols. Subframe 5 in even radio frames can remain available for PSS / SSS and SIB 1 signals. Subframes 4 and 9 in even radio frames, odd radio frames, OR both, can be allocated for MBSFN signals, as long as the information SIB and alert are programmed in subframe O or subframe 5 in even radio frames. By making these configuration changes, an allocation for MBSFN signals of up to about 85% can be achieved. Subframe O and subframe 5 in the even radio frames remain available for non-MBSFN uses.
Similarly, in the Time Division Duplexing (TDD) protocols for a retr0- compatible carrier, a maximum of 60% of subframes can be allocated to MBSFN since subframes 0, 1, 5 and 6 are allocated to PSS, SSS, PBCH, alert and SIB information. To increase the subframe allocation for MBSFN signaling in TDD, Subframe 5 in the odd radio frames can be allocated to PMCH, as long as the last symbol of the subframe
"4% is reserved for SSS symbols.
Subframe 5 in the even radio frames can remain allocated for alert and SIB signals.
Subframes 1 and 6 in even radio frames, odd radio frames, or both, can be allocated to MBSFN signals, as long as the first three symbols are reserved for PSS and broadcast control signaling.
By making these configuration changes, an allocation for MBSFN signals of up to about 85% can be achieved.
Subframe 0 and Subframe 5 in the even radio frames remain available for non-MBSFN uses.
Other Enhancements for Dedicated eMBMS carriers Although a dedicated eMBMS carrier is not supported in version 10, in a future version, a dedicated eMBMS secondary carrier can be added with the primary carrier.
In such a case, a dedicated eMBMS carrier can use a CP length of 16.67 us with a carrier spacing of 15 KHz.
All subframes within a dedicated carrier's radio frame can be allocated to the MBSFN.
The control symbols within an MBSFN subframe can be eliminated, with appropriate adjustments to the RS MBSFN standard compatible with all control symbols being dedicated to the MBSFN.
A secondary carrier does not have to be dedicated exclusively to the MBSFN service; instead, a secondary carrier can be allocated to The Broadcast Service in whole or in part, based on the demand for MBSFN services in a particular area.
When a secondary carrier is dedicated to using eMBMS, no downlink acquisition signal (for example, PSS / SSS or PBCH) needs to be sent on the secondary carrier.
Likewise, the dedicated carrier does not need to be used for SIB, alert or Channel
Shared Physical Downlink (PDSCH). Instead, certain eMBMS parameters can be allocated to the primary carrier. As noted above, SIB 13 on the primary carrier can be expanded to include information for the secondary carriers. Alternatively, a new SIB can be introduced so that only interested UEs need to acquire eMBMS information for the secondary carriers carried in the new SIB (for example, SIB 14). The PDCCH of the primary carrier can be used to notify UEs of MCCH changes.
7 The elimination of control symbols in the MBSFN subframes of the dedicated carrier provides additional link efficiency in the downlink spectrum only so that, for example, the Direct Link Only (FLO) spectrum. The cross-carrier signaling of the primary carrier or other secondary carriers can be used to support single-broadcast transmission on the dedicated carrier.
Mobile entities that do not support simultaneous broadcasting and eMBMS or multiple carrier reception can tune to the primary carrier to acquire MBMS system parameters and then switch to the secondary carrier for eMBMS signaling.
In addition to the variations described above, the 708 network (s) used for the anchor carrier and the second carrier can be configured in several ways. In a 708a mode, the same network or networks can be used for both carriers. In an alternative 708b mode, different networks can coexist and can be used to transmit different carriers. In particular, the most energized network among the available networks can be used to transmit the eMBMS carrier, for example, the second carrier. For example, a peak cell network can be controlled to transmit MBSFN / eMBMS via an X2 interface for intercellular coordination, while a femto cell network can be controlled to transmit unidiffusion data on the anchor carrier without X2 coordination. Due to the different propagation times, different networks can suffer different delay spread. For example, a first network may require a CP of 16.67 us due to its delay spread, while a second network may exhibit a longer CP of 33.33 us. Accordingly, the cyclic prefix 710 can also be configured in several ways. In a 710a modality, the anchor carrier and the second carrier can both use a type of CP (for example, "type 1") having the longest CP of the different networks. In an alternative modality 710b, the anchor carrier can transmit unidiffusion and eMBMS signaling on the network using a second CP type ("type 2"), for example, a long CP type (16.67 us). The second carrier can transmit eMBMS signaling using the first type of CP different from the second type of CP, for example, a longer type of CP (33.33 us).
Example of Methodologies and Apparatus In view of the exemplary systems shown and described here, the methodologies that can be implemented according to the present matter described, will be better appreciated with reference to various flowcharts. While, for the sake of simplicity of explanation, methodologies are shown and described as a series of acts / blocks, it must be understood and appreciated that the present matter claimed is not limited by the number or order of blocks, since some blocks may occur in different orders and / or substantially at the same time with other blocks from what has been described here. Furthermore, neither
AND AND all the illustrated blocks may be necessary to implement the methodologies described here. It must be appreciated that the functionality associated with the blocks can be implemented by software, hardware, or a combination of them or any other suitable means (for example, device, system, process or component). In addition, it should be appreciated that the methodologies described throughout this specification can be stored as coded instructions and / or data in a manufacturing article to facilitate the transport and transfer of such methodologies to various devices. Those skilled in the art will understand and appreciate that a method can alternatively be represented as a series of interrelated states or events, such as in a state diagram.
Figure 8 shows a method 800 for the transmission of Multimedia Broadcast / Multicast Service (MBMS) in services of a Single Frequency Network (MBSFN) using multiple carriers of a wireless communication system using at least one network entity. a wireless communications system. The network entity can be an eNB, or another base station (for example, home Node B, etc.) of a wireless communications network. Method 800 may include the network entity transmitting, at 810, MBSFN signals on a secondary carrier to one or more mobile entities. The mobile entities can each be a UE associated with a subscriber to the wireless communication system. Method 800 may additionally include the network entity transmitting, in 820, information used for the acquisition of a Multicast Control Channel (MCCH) from the base station on a primary carrier, where the base station also transmits at least one signal unidifusion r 4 on the primary carrier. All transmissions described are performed wirelessly according to one or more protocols described here. Figures 9 to 11 show additional optional operations or aspects 900, 1000 and 1100 that can be performed by the source base station in conjunction with method 800 for transmitting eMBMS services using multiple carriers. The operations shown in figures 9 to 11 are not necessary to perform method 800.
Operations 900, 1000 and 1100 can be performed independently and are not mutually exclusive. Therefore, any of these operations can be carried out regardless of whether the downstream or upstream operation is carried out. If method 800 includes at least one operation in figures 9 to 11, then method 800 can end “after at least one operation, without necessarily having to include any subsequent downstream operation (s) that can be illustrated.
With reference to figure 9, method 800 may additionally include, in 910, the base station including information for the acquisition of MCCH in dedicated signaling for the mobile entities connected by Radio Resource Control (RRC). Method 800 may additionally include, at 920, the base station including information for decoding MBSFN signals on the MCCH. Method 800 may additionally include, in 930, the allocation of all secondary carrier subframes for MBSFN signals.
With reference to figure 10, method 800 may additionally include, in 1010, the base station including information for acquisition of MCCH in dedicated signaling on the primary carrier for one or more backwards compatible carriers carrying eMBMS signals, while including the
41/85: information for the acquisition of an MCCH in the common signaling in the primary carrier for one or more non-retro-compatible carriers carrying the eMBMS signaling. Method 810 may additionally include, in 1020, the common signaling comprising signaling via BCCH in the primary carrier.
In another aspect, method 800 can additionally include operations 1100 as shown in the figure
11. Specifically, method 800 may additionally include, at 1110, the base station including at least a portion of the information for acquiring MCCH in one or more primary carrier SIBs. For example, the base station may include at least a portion of the information for acquiring MCCH in a primary carrier's SIBl3. The base station may include a different piece of information in a different SIB, for example, SIB 3 or in a new SIB numbered in a greater than 13 format, for example, a new SIB
14. Alternatively, or in addition, method 800 may include, in 1120, the base station including all information for acquiring MCCH in a primary carrier SIB, for example, in a primary carrier SIB 13.
With reference to figure 12, an exemplary apparatus 1200 is provided which can be configured as a network entity on a wireless network, or as a processor or similar device for use within the network entity, for supplying eMBMS. The device 1200 can include function blocks that can represent the functions implemented by a processor, software, or combination thereof (for example, firmware).
As illustrated, in one embodiment, apparatus 1200 may include an electrical component or module 1202 for transmitting MBSFN signals from a base station to mobile entities on a secondary carrier. Per
7 «
For example, electrical component 1202 may include at least one control processor coupled to a transceiver or the like and a memory with instructions for transmitting MBSFN signals on the secondary carrier.
Electrical component 1202 may be, or may include, mechanisms for transmitting MBSFN signals from a base station to mobile entities on a secondary carrier.
Said mechanisms “can include the control processor running an algorithm.
The algorithm may include, for example, preparing a multicast data stream for a secondary carrier, modulating a signal according to an MBSFN protocol, and transmitting the wireless signal on the secondary carrier. ; Apparatus 1200 may include a component: 15 electric 1204 for transmitting information used to acquire the MCCH from the base station on a primary carrier, where the base station also transmits at least the unidiff signaling on the primary carrier.
For example, electrical component 1204 may include at least one control processor coupled to a transceiver or the like and to a memory retaining instructions for transmitting information used to acquire the MCCH using the primary carrier.
The electrical component 1202 can be, or can include, mechanisms for transmitting information used to acquire the MCCH from the base station on a primary carrier, where the base station also transmits at least unidiffusion signaling on the primary carrier.
Said mechanisms can include the control processor executing an algorithm.
The algorithm can include, for example, the transmission of unidiffusion signals on a primary carrier, obtaining information for acquiring MCCH from the secondary carrier,
and transmission of information for wireless MCCH acquisition on the primary carrier.
Apparatus 1200 may include a component or electrical medium 1206 to include information for acquiring MCCH in dedicated signaling on the primary carrier for one or more retro-compatible carriers carrying eMBMS signals, while including information for acquiring an MCCH on common signaling in the common primary carrier for one or more non-retro-compatible carriers carrying the eMBMS signaling. The electrical component or mechanisms 1206 may be, or may include, at least one control processor coupled to a transceiver and memory maintaining an algorithm in the form of coded instructions, with at least one control processor executing the algorithm. The algorithm may include, for example, obtaining the first information for acquiring MCCH for each of the one or more retro-compatible carriers carrying eMBMS signals, and including the first information for acquiring MCCH in dedicated signaling transmitted on the primary carrier. the algorithm may additionally include, for example, obtaining second information for the acquisition of the MCCH for each or more non-retro-compatible carriers carrying eMBMS signals, and including the second information in the common signaling transmitted on the primary carrier.
apparatus 1200 may include similar electrical components for carrying out any or all of the additional operations 900 to 1100 described with respect to figures 9 to 11, which for illustration purposes are not shown in figure 12.
In related aspects, the apparatus 1200 may optionally include a processor component 1210 having at least one processor, in the case of the apparatus
1200 configured as a network entity.
The processor 1210, in such a case, can be in operative communication with components 1202 to 1206 or similar components through a 1212 bus or similar communication coupling.
Processor 1210 can initiate and program the processes or functions performed by electrical components 1202 to 1206. Processor 1210 can include components 1202 to 1206, in whole or in part.
Alternatively, Processor 1210 can be separated from components 1202 to 1206, which can include one or more separate processors.
In additional related aspects, The apparatus 1200 may include a radio transceiver component 1214. An independent receiver and / or independent transmitter may be used in place of or in conjunction with the transceiver | 1214. In the alternative, or in addition, the apparatus 1200 may include multiple transceivers or transmitter / receiver pairs, which can be used to transmit and receive on different carriers.
The apparatus 1200 may optionally include a component for the information storage, such as, for example, a memory device / component 1216. The computer-readable medium or the memory component 1216 can be operatively coupled to other components of the apparatus 1200 through bus 1212 or similar.
The memory component 1216 can be adapted to store computer-readable instructions and data for carrying out the activity of components 1202 to 1206, and subcomponents thereof, or processor 1210, additional aspects 1100, or the methods described here.
Memory component 1216 can hold instructions for performing functions associated with components 1202 to 1206. While shown to be external to memory 1216, it is understood that components 1202 to 1206 may exist within memory 1216. A mobile entity receiving signals of a base station using method 800 can perform a method 1300 to make use of the information from the base station, as shown in figure 13. The mobile entity can comprise an entity in any of the various ways described here, for example, a HUH. The 1300 method can include the mobile entity receiving, in 1310, MBSFN signals from a base station on a secondary carrier. The 1300 method can additionally include the mobile entity receiving, in 1320, the information used to acquire an MCCH from the base station on a primary carrier, where the primary carrier also includes at least one-signal broadcast.
Figures 14 and 15 show additional operations or optional aspects 1400, 1500 that can be performed by the mobile entity in conjunction with method 1300 for receiving eMBMS information using multiple carriers of a wireless communications system. The operations shown in figures 14 and 15 are not necessary to perform the 1300 method. Unless positioned directly on opposite branches outside a diamond "in the alternative", the operations can be performed independently and are not mutually exclusive. Therefore, any of these operations can be carried out regardless of whether another downstream or upstream operation is carried out. If method 1300 includes at least one operation of figures 14 and 15, then method 1300 can terminate after at least one Operation, without necessarily needing to include any subsequent downstream operation that can be illustrated. Conversely, operations that are positioned directly on opposite branches outside a diamond "in the alternative" are expected to be mutually exclusive alternatives in any particular case of the method.
With reference to figure 14, method 1300 may include one or more of the additional operations 1400. Method 1300 may additionally include, in 1410, the mobile entity receiving information for the acquisition of an MCCH in a SIB of the primary carrier. the 1300 method can additionally include, in 1420, the mobile entity receiving the information for acquiring MCCH in dedicated signaling while in an RRC CONNECTED state.
The 1300 method may additionally include, in 1430, the mobile entity decoding all subframes of the secondary carrier as dedicated to MBSFN signals.
The 1300 method can additionally include, in 1440, the mobile entity decoding the MBSFN signals using the information received through MCCH.
With reference to figure 15, method 1300 may include one or more of the additional operations 1500. Method 1300 may additionally include, in 1510, the mobile entity receiving information for the acquisition of MCCH in the common broadcast signaling, while the mobile entity is in an RRC IDLE state.
The 1300 method can additionally include, in 1520, the mobile entity receiving the information for acquiring the MCCH in a SIB 13 of the primary carrier.
Alternatively, method 1300 may additionally include, in 1530, the mobile entity receiving at least a part of the information for acquiring MCCH in one or more additional SIBs from the primary carrier.
Alternatively, method 1300 may additionally include, in 1540, the mobile entity receiving at least a part of the information for acquiring MCCH on a SIB 13 from the primary carrier.
The mobile entity can receive a different part of the information in
4% another SIB, for example, SIB 3 or a new SIB numbered higher than 13, for example, a new SIB 14.
With reference to figure 16, an exemplary device 1600 is provided which can be configured as a mobile entity or UE on a wireless network, or as a processor or similar device for use within the ME or UE, for receiving an eMBMS in a secondary carrier. The device 1600 can include function blocks that can represent the functions implemented by a processor, softrvare or a combination of them (for example, firmware).
In one embodiment, apparatus 1600 may include an electrical component or module 1602 for receiving MBSFN signals at a mobile entity on a secondary carrier. For example, electrical component 1602 can include at least one control processor coupled to a transceiver or the like and to a memory with instructions for receiving and processing MBSFN signaling through a secondary carrier among multiple carriers.
Electrical component 1602 can be, or can include, | mechanisms for receiving MBSFN signals in a | mobile entity on a secondary carrier. Said mechanisms “can include the control processor running an algorithm. The algorithm can include, for example, receiving a signal on a secondary carrier, and demodulating the signal according to an MBSFN protocol to obtain demodulated data.
The device 1600 may include an electrical component 1604 for receiving information used to acquire an MCCH on a primary carrier, where the primary carrier also includes at least one unidiff signal. For example, electrical component 1604 can include at least one control processor coupled to a
& H transceiver or similar and to a memory keeping instructions for acquiring MCCH on the anchor carrier.
Electrical component 1604 can be, or can include, mechanisms for receiving information used to acquire an MCCH on a primary carrier, where the primary carrier also includes at least one broadcast signal.
Said mechanisms can include the control processor running an algorithm.
The algorithm may include, for example, the receipt of unidiffusion signaling on a primary carrier, receipt of control signaling on the primary carrier, and identification of the information for acquisition of the secondary carrier MCCH on the control signaling.
The MCCH itself can be broadcast on the secondary carrier.
The apparatus 1600 may include similar electrical components for carrying out any and all additional operations 1400 or 1500 described with respect to figures l14 and 15 which for simplicity of illustration are not shown in figure 16. In related aspects, the apparatus 1600 may optionally include a process component 1610 having at least one processor, in the case of the device 1600 configured as a mobile entity.
The processor 1610, in such a case, may be in operative communication with components 1602 to 1604 or similar components through a 1612 bus or similar communication coupling.
The 1610 processor can initiate and program the processes or functions performed by | electrical components 1602 to 1604. The 1610 processor can encompass components 1602 to 1604 in whole or in part.
Alternatively, processor 1610 may separate from components 1602 through 1604, which may include one or more separate processors.
In additional related aspects, the 1600 device includes a 1614 radio transceiver component. An independent receiver and / or an independent transmitter can be used in place of or in conjunction with the 1614 transceiver. Alternatively, or in addition, The 1600 device can include multiple transceivers or transmitter / receiver pairs, which can be used to transmit and receive on different carriers. Apparatus 1600 may optionally include a component for storing information, such as, for example, a 1616 memory device / component. The readable medium by; computer or memory component 1616 can be operatively coupled to other components of device 1600 via bus 1612 or similar. The memory component 1616 can be adapted to store computer-readable instructions and data for carrying out the activity of components 1602 to 1604, and subcomponents thereof, or processor 1610, or additional aspects 1400 or 1500, or methods described here. The 1616 memory component can retain instructions for performing the functions associated with components 1602 to 1604. While shown as external to 1616 memory, it should be understood that components 1602 to 1604 can exist within 1616 memory.
A network entity can also perform a 1700 method for transmitting MBSFN signals on a secondary carrier, as shown in figure 17. The network entity can be, for example, an eNB, home node B, or another base station for a system wireless communications. The 1700 method may include, in 1710, the transmission of MBSFN signals from a base station on a secondary carrier. The 1700 method may additionally include, in 1720, the transmission of MCCH information to
: 50/85 from the base station on a primary carrier, where the base station also transmits at least unidiff signaling on the primary carrier.
Figure 18 shows additional optional operations or 1800 aspects that can be performed by the network entity in conjunction with the 1700 method for the transmission of eMBMS information using multiple carriers of a wireless communications system.
The operations shown in figure 18 are not necessary to perform the 1700 method. Unless positioned directly on the opposite branches outside a diamond "in the alternative", the operations can be performed independently and are not mutually | exclusive.
Therefore, any of the said operations can be carried out regardless of whether another downstream or upstream operation is carried out.
If the 1700 method includes at least one operation in figure 18, then the 1700 method can end “after at least one Operation, without necessarily having to include any subsequent downstream Operation that can be illustrated.
Conversely, operations that are positioned directly on opposite branches outside a diamond "in the alternative" must be mutually exclusive alternatives in any particular case of the method.
With reference to figure 18, method 1700 may additionally include, in 1805, the base station including information for decoding MBSFN signals in the MCCH information.
The 1700 method may additionally include, in 1810, the base station transmitting a PDCCH on the primary carrier to provide notification of changes in MCCH information.
The 1700 method may additionally include, in 1820, the base station receiving a count response from a mobile entity in response to the MCCH information on the primary carrier.
That is, the base station can receive the count response on the primary carrier, since the mobile entity transmits there.
Alternatively, the 1700 method may include, in 1830, the base station receiving a counting response from the mobile entity in response to the MCCH information on an uplink carrier that is associated with the secondary carrier.
That is, the base station can receive the response on some uplink carrier (not the anchor carrier) that is associated with the secondary carrier.
With reference to figure 19, an exemplary apparatus 1900 is provided which can be configured as a network entity on a wireless network, or as a processor or | similar device for use within the network entity, | for providing eMBMS.
The 1900 appliance may include | 15 functional blocks that can represent functions | implemented by a processor, software, combinations of | (for example, firmware). As illustrated, in one embodiment, the O | 1900 may include an electrical component or module 1902 for transmitting MBSFN signals from a base station to mobile entities on a secondary carrier.
For example, electrical component 1902 may include at least one control processor coupled to a transceiver or | similar and a memory with instructions for transmission | 25 MBSFN signals on the secondary carrier.
The component | electric 1902 may be, or may include, | transmission of MBSFN signals on the secondary carrier.
The | said mechanisms may include the control processor | running an algorithm.
The algorithm may include, for example, preparing a multicast data stream for a secondary carrier, modulating a signal according to an MBSFN protocol, and transmitting the | wireless signal on the secondary carrier.
Apparatus 1900 may include an electrical component 1904 for transmitting MCCH information from the base station to a primary carrier, where the base station also transmits at least unidiff signaling on the primary carrier.
For example, electrical component 1904 can include at least one control processor coupled to a transceiver or the like and a memory maintaining instructions for transmitting MCCH information using the primary carrier.
Electrical component 1904 may be, or may include, mechanisms for transmitting MCCH information from the base station on a primary carrier, where the base station also transmits at least unidiffusion signaling on the primary carrier.
Said mechanisms can include the control processor executing an algorithm.
The algorithm can include, for example, the transmission of unicast signals on a primary carrier, obtaining MCCH information from the secondary carrier, and transmission of the MCCH information wirelessly on the primary carrier.
The apparatus 1900 may include similar electrical components for performing all or any of the additional operations 1800 described with reference to figure 18, which for the sake of simplicity of illustration are not shown in figure 19. In related aspects, the apparatus 1900 may include optionally a processor component 1910 having at least one processor, in the case of apparatus 1900 configured as a network entity.
The 1910 processor, in such a case, may be in operational communication with components 1902 to 1904 or similar components via a 1912 bus or communication coupling | similar.
The 1910 processor can initiate and program the processes or functions performed by electrical components 1902 to 1904. The 1910 processor can comprise components 1902 to 1904 in whole or in part. Alternatively, Processor 1910 can be separated from components 1902 to 1904, which may include one or more separate processors. In additional related aspects, the 1900 apparatus may include a 1914 radio transceiver component. An independent receiver and / or independent transmitter may be used in place of or in conjunction with the transceiver
1914. In the alternative, or in addition to, the apparatus 1900 may include multiple transceivers or pairs of transmitter and receiver, which can be used to transmit and receive on different carriers. The 1900 apparatus may optionally include a component for storing information, such as, for example, a 1916 memory device / component. The computer-readable medium or 1916 memory component may be operatively coupled to other components of the 1900 apparatus bus 1912 or similar. The 1916 memory component can be adapted to store computer-readable instructions and data for carrying out the activity of components 1902 to 1904, and subcomponents thereof, or the 1910 processor, the additional aspects 1800, or the methods described here. The 1916 memory component | can retain instructions for performing functions associated with components 1902 to 1904. While shown to be external to 1916 memory, it should be understood that components 1902 to 1904 may exist within 1916 memory. A mobile entity can perform a 2000 method for receiving MBSFN signals on a secondary carrier, as shown in figure 20. In 2000, the 2000 method can include a mobile entity receiving MBSFN signals transmitting from a base station on a secondary carrier. Method 2000 may additionally include, in 2020, the receipt of MCCH information from the base station on a primary carrier, where the primary carrier also includes at least one-signal broadcast.
Figure 21 shows additional optical operations or 2100 aspects that can be performed by the mobile entity in conjunction with the 2000 method for receiving eMBMS information using multiple carriers from a wireless communications system. The operations shown in | 10 figure 21 are not necessary to perform the method
2000. Unless positioned directly on opposite branches outside a diamond "in the alternative", operations can be performed independently and are not mutually | exclusive. Therefore, any of the said operations can be carried out regardless of whether another downstream or upstream operation is carried out. If method 2000 includes at least one operation in figure 20, then method 2000 can terminate after at least one operation, without necessarily having to include any subsequent downstream operation (s) that can be | 'illustrated (s). Conversely, operations that are positioned directly on opposite branches outside a diamond "in the alternative" must be alternatives | mutually exclusive to any particular case of | 25 method. | With reference to figure 21, method 2000 may additionally include, in 2105, the mobile entity | decoding the MBSFN signals using the MCCH information. Method 2000 may additionally include, in 2110, the mobile entity receiving a PDCCH on the primary carrier | to obtain notification of changes in MCCH information. Method 2000 may additionally include, in 2120, the mobile entity transmitting a counting response to the
: i 55/85 & * base station in response to MCCH information on the carrier, primary. That is, the mobile entity can transmit the count response on the primary carrier. Alternatively, method 2000 may include, in 2130, the mobile entity transmitting a count response to the base station in response to the MCCH information on an uplink bearer that is associated with the secondary bearer. That is, the mobile entity can transmit the response on some uplink carrier (not the anchor carrier) that | 10 is associated with the secondary carrier.
In general, with reference to figures 15, 18 and 21, | the decision functionality associated with logical branching operations, like other operations presented in these figures, can be implemented by software, | 15 hardware, a combination thereof or any other suitable mechanisms (for example, device, system, process or component). In this way, for example, branching decisions can be made during execution by an entity performing other aspects of the described method, they can be predetermined by project before | execution of other operations, or can be performed by | some combination of the above through various branching operations. Referring to figure 22, an illustrative device 2200 is provided which can be configured as a mobile entity or UE on a wireless network, or as a processor or similar device for use within the ME or UE, for the receipt of an eMBMS in a secondary carrier. The 2200 device may include function blocks that may represent functions implemented by a processor, software, or combinations thereof (for example, firmware).
x x In one embodiment, the 2200 device may include an electrical component or module 2202 for receiving MBSFN signals on a mobile entity on a secondary carrier. For example, electrical component 2202 can include at least one control processor coupled to a transceiver or the like and a memory with instructions for receiving and processing eMBMS signaling through a secondary carrier among the multiple carriers. Electrical component 2202 can be, or can include, | 10 mechanisms for receiving MBSFN signals at a mobile entity on a secondary carrier. Said mechanisms “can include the control processor running an algorithm. The algorithm can include, for example, receiving a signal on a secondary carrier, and demodulating the signal according to an MBSFN protocol to obtain demodulated data.
Apparatus 2200 may include an electrical component 2204 for receiving MCCH information on a primary carrier, where the primary carrier also includes at least unidiffusion signaling. For example, electrical component 2204 may include at least one control processor coupled to a transceiver or similar and to a memory retaining instructions for receiving MCCH information on the anchor carrier. Electrical component 2204 can be, or can include, mechanisms for receiving MCCH information on a primary carrier, where the primary carrier also includes at least unidiffusion signaling. Said mechanisms can include the control processor executing an algorithm. The algorithm may include, for example, Receiving unidiff signaling on a primary carrier, receiving control signaling on the primary carrier, and identifying the MCCH information for
! 57/85 1 the secondary carrier MCCH in the control signaling. | The 2200 appliance may include electrical components | similar to carry out any and all additional operations 2100 described with reference to figure 21, which for simplicity purposes are not shown in figure 22. In related aspects, the apparatus 2200 may optionally include a processor component 2210 having at least one processor , in the case of device 2200 configured as a mobile entity. The 2210 processor in such a case may be in operative communication with components 2202 to 2204 or similar components via a 2212 bus or similar communication coupling. The 2210 processor can initiate and program the processes or functions performed by electrical components 2202 to 2204. The 2210 processor can include components 2202 to 2204 in whole or in part. Alternatively, processor 2210 can be separated from components 2202 to 2204, which may include one or more separate processors. In additional related aspects, the apparatus 2200 may include a radio transceiver component 2214. An independent receiver and / or transmitter may be used in place of or in conjunction with the transceiver
2214. In the alternative, or in addition, apparatus 2200 may include multiple transceivers or pairs of transmitter and receiver, which can be used to transmit and receive on different carriers. The device 2200 can optionally include a component for storing information, such as, for example, a device or memory component 2216. The computer-readable medium or memory component 2216 can be operatively coupled to other components of the device 2200 through the 2212 bus or similar. The component of |
| | À, '58/85 j 2216 memory can be adapted to store instructions | computer-readable and data to perform the 1 activity of components 2202 to 2204, and subcomponents of | same, or the 2210 processor, or additional aspects 2100, or the methods described here. The 2216 memory component can retain instructions for performing associated functions. with components 2202 to 2204. While shown to be external to memory 2216, it should be understood that components 2202 to 2204 may exist within memory
2216. Certain aspects may also refer to | optimization of subframe allocation when multiple | carriers are used to carry MBSFN information. For this purpose, a network entity can perform a 2300 method for subframe allocation, as shown in figure 23. The network entity can be, for example, an eNB, a home Node B, or another base station for a system wireless communications. The 2300 method may include, in 2310, the base station allocating at least part of one or more subframes on the other hand reserved for unidiffusion signals on a mixed carrier, to provide an increased allocation of the subframes carrying j | MBSFN information. method 2300 may further comprise i, in 2320, the base station transmitting signals' | 25 MBSFN, using the increased allocation. | Figures 24 to 26 show additional operations or aspects 2400, 2500, 2600 that can be performed by the source base station in conjunction with method 2300 for subframe allocation. The operations shown in figures 24 to 26 are not necessary to perform the 2300 method. | 2400, 2500 or 2600 operations can be performed independently and are not mutually exclusive. Therefore, any of these operations can be carried out regardless of whether another upstream or downstream operation is carried out. If method 2300 includes at least one operation in figures 24 to 26, then method 2300 can terminate after at least one operation, without necessarily having to include any subsequent downstream operation (s) that may (m) be illustrated.
Figure 24 provides more specific examples of subframe allocation operations 2400 as defined more generally in operation 2310. Operations 2400 are «adapted for use with a Frequency Division Duplexing (FDD) protocol. The 2300 method can include, in 2410, the allocation of subframes according to an FDD protocol. The method 2300 may include, in 2420, the allocation of subframe 5 in odd FDD radio frames for MBSFN information. The method 2300 can include, in 2430, the programming of SIBs and alert in at least one of: subframe 5 in even radio frames and subframe 0. Method 2300 can include, in 2440, the allocation of at least one of the subframes 4 and 9 for MBSFN information.
Alternatively, or in addition, method 2300 can implement subframe allocation as shown in figure 25, using 2500 operations adapted to a Time Division Duplexing (TDD) protocol. The 2300 method may include, in 2510, the allocation of subframes according to a TDD protocol. The method 2300 may include, in 2520, the allocation of subframe 5 in odd TDD radio frames for MBSFN information. The method 2300 can include, in 2530, the programming of SIBs and alert in at least one of: subframe 5 in even radio frames, and subframe 0. Method 2300 can include, in 2540, the: allocation of at least one subframes 1 and 6 for MBSFN information.
: S 60/85 Version 10 does not support aggregation of FDD and TDD protocols. Therefore, the 2300 method if practiced under version 10 may include 2400 operations for the FDD protocol or 2500 operations for the TDD protocol, but it will generally not include operations for both TDD and FDD protocols on the same network entity. Future versions may support aggregation of support for FDD and TDD protocols, where the network entity can use either, or both, the FDD and TDD protocols for different carriers, different times, or different locations. In such implementations, operations 2400 and 2500 can be selected to match the protocol used for a particular carrier at a particular time or place. Method 2300 can include additional operations 2600 as shown in figure 26. Method 2300 can additionally include, in 2610, the allocation of subframes to provide an increased allocation of subframes for use of MBSFN for a temporary period. For example, a base station may receive a signal indicating that a mixed carrier must increase the subframes allocated to MBSFN for a defined period of time. The base station can perform operation 2610 at the start of the defined time period. j Method 2300 may additionally include, in 2620, the: reallocation of at least part of one or more subframes, on the other hand reserved for unidiffusion and allocated “temporally for MBSFN signals, for | unidifusion signaling in response to the expiration of | temporary period.
| Method 2300 includes providing a | 30 increased allocation of subframes carrying MBSFN information. | The increased allocation is not necessarily static, and the network entity may increase or decrease the allocation by | response to various factors such as a relative demand for unidifusion or multicast services, for example, as indicated by operations 2610 and 2620 described above. Accordingly, the network entity can transmit signals for information from mobile entities in the current subframe allocation to a particular carrier. According to a first alternative for use in single carrier modes, the network entity can transmit MBSFN allocation through SIB2 and the real MBMS service allocation through SIBI3 and later through MCCH / MSI. Alternatively, for use in multiple carrier modes, the network entity can transmit SIB2 signaling on secondary carriers through dedicated signaling, while transmitting the actual MBMS service allocation via SIB1l3 and later through MCCH / MSI on the primary carrier, as in single carrier modalities.
Referring to figure 27, an exemplary device 2700 is illustrated which can be configured as a network entity on a wireless network, or as a processor or similar device for use within the network entity, for providing eMBMS. The 2700 device may include function blocks that may represent functions implemented by a processor, software, or combinations thereof (for example, firmware). As illustrated, in one embodiment, the 2700 apparatus may include an electrical component or module 2702 for allocating at least a portion of one or more subframes on the other hand reserved for unidiffusion signals on a mixed carrier to provide an allocation | 30 increased subframes carrying MBSFN information. For example, electrical component 2702 can include at least | a control processor coupled to a transceiver or similar and to a memory with instructions for allocating subframes.
Electrical component 2702 may be, or may include, mechanisms for allocating at least a portion of one or more subframes on the other hand reserved for unidiffusion signals on a mixed carrier to provide an increased allocation of subframes carrying MBSFN information.
Said mechanisms can include the control processor executing an algorithm.
The algorithm can include, for example, allocating subframes according to a TDD or FDD protocol, and allocating MBSFN information to selected subframes based on whether an FDD or TDD protocol is used.
The algorithm may additionally include, for example, the allocation of subframes according to any of the more detailed algorithms described above, for example,
in blocks 2420, 2430, 2440, 2520, 2530 or 2540. The 2700 apparatus may include an electrical component 2704 for transmitting MBSFN signals using the increased allocation.
For example, electrical component 2704 can include at least one control processor coupled to a transceiver or the like and to a memory maintaining instructions for transmitting MBSFN signals.
Electrical component 2704 can be, or can include, mechanisms for transmitting MBSFN signals using the increased allocation.
Said mechanisms can include a control processor executing an algorithm.
The algorithm can include, for example, providing subframes with increased allocation for a transmission current from a primary carrier, and transmitting subframes using the transmission current.
The apparatus 2700 may include similar electrical components for carrying out any or all additional operations 2400 to 2600 described with reference to figures 24 to 26, which for the sake of simplicity of illustration are not illustrated in figure 27.
In related aspects, the 2700 device may optionally include a 2710 processor component having at least one processor in the case of the 2700 device configured as a network entity.
The processor 2710, in such a case, may be in operative communication with components 2702 to 2704 or similar components through a 2712 bus or similar communication coupling.
The 2710 processor can initiate and program the processes or functions performed by | 10 electrical components 2702 to 2704. The 2710 processor can | encompass components 2702 to 2704, in whole or in part.
Alternatively, Processor 2710 can be separated from components 2702 to 2704, which can include one or more separate processors.
In additional related aspects, the device | 2700 may include a radio transceiver component 2714. An independent receiver and / or an independent transmitter may be used in place of or in conjunction with The 2714 transceiver. Alternatively, or in addition to, the The 2700 apparatus may include multiple transceivers or pairs | transmitter and receiver, which can be used to transmit and receive on different carriers.
The 2700 device can optionally include a component for storing information, such as, for example, a 2716 memory device / component. The computer-readable medium or 2716 memory component can be operatively coupled to other components of the 2700 device bus 2712 or similar.
Memory component 2716 can be adapted to store computer-readable instructions and data for performing activity from components 2702 to 2704 and subcomponents thereof, or processor 2710, additional aspects 2400, 2500 or 2600, or the methods described on here.
Memory component 2716 may retain instructions for performing functions associated with components 2702 to 2704. While shown as being out of memory 2716, it should be understood that components 2702 to 2704 may exist within memory 2716.
A mobile entity can perform a 2800 method for decoding a subframe allocation, as shown in figure 28. The 2800 method can include, in 2810, the mobile entity determining that an MBSFN signal has an increased allocation of subframes carrying MBSFN information, where one or more subframes previously reserved for unicast signals are allocated instead for multicast signals. The subframe allocation for MBSFN signal can change in response to several factors, as noted above. According to a first alternative to the use of single carrier modalities, the mobile entity can determine the allocation of MBSFN from SIB2 and allocation of actual MBMS service from SIBl3 and later through MCCH / MSI. Alternatively, for use in multiple carrier modes, the mobile entity can decode the SIB2 signaling received on secondary carriers via dedicated signaling to determine the subframe allocation, while obtaining the actual MBMS service allocation via SIBl3 and later via MCCH / MSI on the primary carrier. The 2800 method can further comprise, in 2820, the mobile entity decoding of the MBSFN signal according to the increased allocation to provide multicast content output.
Figures 29 to 31 show additional optional operations or aspects 2900, 3000, 3100 that can be performed by the mobile entity in conjunction with method 2800 for using subframe allocation. The operations shown in figures 29 to 31 are not necessary to perform the 2800 method. Operations 2900, 3000 and 3100 can be performed independently and are not mutually exclusive. Therefore, any of the said operations can be carried out regardless of whether another downstream or upstream operation is carried out. If method 2800 includes at least one operation of figures 29 to 31, then method 2800 may terminate after at least one operation, without necessarily having to include any subsequent downstream operation (s) that may (m) ) be illustrated.
Figure 29 illustrates specific examples of decoding subframes according to an increased MBSFN allocation on a mixed carrier, using operations 2900 for an FDD protocol. The 2800 method can include, in 2910, decoding subframes according to an FDD protocol. The method 2800 may include, in 2920, the decoding of subframe 5 in odd FDD radio frames for MBSFN information. The method 2800 can include, in 2930, the decoding of SIBs and alert in at least one among: subframe 5 in radio frames even and subframe
0. Method 2800 may include, in 2940, the decoding of at least one of subframes 4 and 9 for MBSFN information.
Alternatively, or in addition, method 2800 can implement subframe allocation as shown in figure 30, using operations 3000 for a TDD protocol. The method 2800 may include, in 3010, the decoding of subframes according to a TDD protocol. The method 2800 may include, in 3020, the decoding of subframe 5 in odd TDD radio frames for MBSFN information. The method 2800 may include, in 3030, the decoding of STBs and alerts in at least one of subframe 5 in the even radio frames and subframe 0. Method 2800 may include,
in 3040, the decoding of at least one of subframes 1 and 6 for MBSFN information.
As noted above, Version 10 does not support the aggregation of FDD and TDD protocols.
So if the method | 5 2800 is practiced under Version 10 it may include 2900 operations for the FDD protocol or 3000 operations for the TDD protocol, but it will generally not include operations for both TDD and FDD protocols on the same mobile entity.
Additional versions can support the aggregation of support for FDD and TDD protocols, where the mobile entity can use either or both FDD and TDD protocols for different carriers, different times or different locations.
In such implementations, operations 2900 and 3000 can be selected to match the protocol used for a particular carrier at a particular time or place.
Method 2800 can additionally include additional operations 3100 as shown in figure 31. Method 2800 can additionally include, in 3110, the decoding of subframes to obtain an increased allocation of subframes for MBSFN signals to accommodate a temporary period of use dedicated carrier carrier for MBSFN.
The 2800 method may additionally include, at 3120, the decoding of at least a part of one or more subframes on the other hand reserved for unicast signals and temporarily allocated for MBSFN signals for unicast signaling, in response to the expiration of the temporary period.
With reference to figure 32, an exemplary device 3200 is provided which can be configured as a mobile entity on a wireless network, or as a processor or similar device for use within the mobile entity, for decoding the eMBMS subframes.
The 3200 device can
HA | | 67/85: Po | | include function blocks that can represent functions implemented by a processor, software or combination | (for example, firmware).
As illustrated, in one embodiment, the 3200 apparatus may include an electrical component or module 3202 for determining that an MBSFN signal has an increased allocation of subframes carrying MBSFN information, where one or more subframes previously reserved for broadcast signals are allocated instead multicast signals.
For example, electrical component 3202 can include at least one control processor coupled to a transceiver or similar and to a memory with instructions for determination | of a subframe allocation for an MBSFN signal. The electrical component 3202 can be, or can include, mechanisms for determining that an MBSFN signal has an increased allocation of subframes carrying MBSFN information, where one or more subframes previously reserved for unicast signals are allocated instead of multicast signals. Said mechanisms can include the control processor executing an algorithm. The algorithm can include, for example, receiving a multicast control signal on the primary carrier, | interpreting the control signal as an instruction that the MBSFN signal will change to an increased allocation for | 25 multicast signal state at a particular time, and | time detection.
The 3200 apparatus may include an electrical component 3204 for decoding the MBSFN signal according to the increased allocation to provide an output of multicast content. For example, electrical component 3204 can include at least one control processor coupled to a transceiver or the like and a memory maintaining instructions for decoding MBSFN signals to provide
, 68/85 the output, for example, audiovisual output of MBMS content.
The electrical component 3204 can be, or can include, MBSFN signal decoding mechanisms according to the increased allocation to provide multicast content output.
Said mechanisms can include the control processor executing an algorithm.
O | The algorithm may include, for example, receiving the MBSFN signal through a receiving stream, and decoding the MBSFN information from the selected subframes based on whether the FDD or TDD protocol is used.
The algorithm may additionally include, for example, decoding subframes according to any of the more detailed algorithms described above, for example, in blocks 2920, 2930, 2940, 3020, 3030 or 3040. The 3200 device may include similar electrical components for carrying out any and all additional operations 2900 to 3100 described with respect to figures 29 to 31 which for simplicity are not shown in figure 32. In related aspects, the 3200 apparatus may optionally include a 3210 processor component having at least one processor, in case the 3200 device is configured as a mobile entity.
The 3210 processor, in such a case, can be in operative communication with components 3202 to 3204 or similar components through a 3212 bus or similar communication coupling.
The 3210 processor can initiate and program the process or functions performed by electrical components 3202 to 3204. The 3210 processor can comprise components 3202 to 3204, in whole or in part.
Alternatively, processor 1210 can be separated from 3 components 3202 to 3204, which can include one or more 1 separate processors. |
: 69/85 4 In additional related aspects, the 3200 device may include a 3214 radio transceiver component. 'An independent receiver and / or an independent transmitter may be used in place of or in conjunction with the 3214 transceiver. Alternatively, or in addition to, the 3200 apparatus may include multiple transceivers or pairs | transmitter and receiver, which can be used to transmit and receive on different carriers. The 3200 device can optionally include a component for storing information, such as, “for example, a 3216 memory device / component. The computer-readable medium or the 3216 memory component can be operatively coupled to other components of the 3200 device via the 3212 bus or similar. The 3216 memory component can be adapted to store; computer-readable instructions and data for carrying out the activity of components 3202 to 3204, and subcomponents thereof, or the 3210 processor, additional aspects 2900, 3000 or 3100, or the methods described here. The 3216 memory component can retain instructions for performing functions associated with components 3202 to 3204. While shown to be external to 3216 memory, it should be understood that components 3202 to 3204 may exist within memory
3216.
Fig. 33 shows a 3300 method for delivering eMBMS using at least one network entity in a wireless communications system. The network entity can include an eNB in any of the various ways described here. The 3300 method may include the network entity transmitting, in 3320, the unidiffusion signaling to a unidiffusion service on an anchor carrier for the mobile entities. Mobile entities can understand |
- To "'7 men - 70/85 | s 1 each, a UE associated with a subscriber to the wireless communication system. The 3300 method may include; additionally the network entity transmission in 3340, signaling eMBMS in a second carrier other than the anchor carrier for mobile entities for use with unidiffusion signaling. All transmissions described | can be performed wirelessly according to one or more protocols described here. Correspondingly, figure 34 shows a | 10 method 3400 for receiving and eMBMS using at least one mobile entity of a wireless communications system. The mobile entity may include a UE associated with a wireless subscriber. Method 3400 may include mobile entity processing, in 3420, signaling the unicast for a unicast service received on an anchor carrier from a network entity. The network entity may comprise a B node in any of the various ways described s here. The 3400 method may additionally include mobile entity processing, in 3440, eMBMS signaling received from the network entity on a second carrier other than the anchor carrier. The mobile entity can receive all wireless signaling according to one or more protocols described here.
Figures 35A and 35B show additional optional operations or aspects 3500 that can be performed by the network entity in conjunction with method 3300 for providing eMBMS using at least one network entity of a wireless communications system. The blocks shown in figures 35A and 35B are not necessary for the realization of the 3300 method. Unless positioned directly on the opposite branches outside a diamond "in the alternative", the blocks can be made independently and are not mutually exclusive.
Therefore, any one of said blocks can be carried out regardless of whether another block downstream or upstream is carried out.
If method 3300 includes at least one block of figures 35A and 35B, then method 3300 can terminate after at least one block, without necessarily having to include any subsequent downstream block that can be illustrated.
Conversely, blocks that are positioned directly on opposite branches outside a diamond "in the alternative" must be mutually exclusive alternatives in any particular case of the method.
The 3300 method may additionally include, in 3510, the network entity receiving signals for coordination of eMBMS signaling between the access nodes within an eMBMS area of the wireless communication system.
The 3300 method can additionally include, in 3520, the network entity allocating a first set of subframes of the anchor carrier for eMBMS signaling, and a second set of subframes of the anchor carrier for unidiffusion signaling.
The first set of subframes and the second set of subframes should not share any elements in common.
In the alternative to block 3520, method 3300 may additionally include, in 3525, the network entity allocating subframes of the anchor bearer for unidiffusion signaling without allocating any subframe of the anchor bearer for signaling —eMBMS.
These alternatives are configurable by the network entity (for example, an eNB) and distributed to the mobile entity, for example, through an Alert Control Channel (PCCH) broadcast in system information block 13. In addition to any case of blocks 3520 and 3530, according to another alternative 3528, method 3300 may additionally include, in 3530, the network entity transmitting downlink signaling exclusive to the receipt of any uplink signaling on the second carrier. Conversely, in the alternative to block 3530, method 3300 may additionally include, in 3535, the network entity receiving uplink signaling on the second carrier. Compatible with any of the above 3530 or 3535 cases, the 3300 method may include, in 3532, the network entity transmitting eMBMS signaling on the second carrier that has an unpaired spectrum. As used here, a | "unpaired spectrum" refers to the radio spectrum that | does not use the spectrum allocated separately for uplink and downlink signaling, and therefore uses the same spectrum for uplink, downlink, or both. This occurs in contrast to the paired spectrum, which uses a different spectrum for uplink and downlink. In the 3532 alternative, the network entity does not transmit the eMBMS signaling on the second carrier. Alternatively, or in addition, Method 3300 can additionally include, in 3538, using cross-carrier signaling on the anchor carrier to avoid allocating control symbols on the second carrier. Alternatively, or in addition to, method 3300 may additionally include, in 3540, the network entity transmitting all acquisition signals on the anchor carrier.
Referring now to figure 35B, according to a first alternative, method 3300 may additionally include, in 3550, the network entity allocating a first set of subframes of the second carrier for eMBMS signaling, and a second set of subframes of the second carrier for unidifusion signaling. O
73/85 | & x | the first set of subframes and the second set of subframes must not share any elements in common.
In alternative 3552 to block 2550, method 3300 can additionally include, in 3555, the network entity allocating the subframes of the second carrier for eMBMS signaling without allocating any subframe of the second carrier for unidiffusion signaling.
The 3300 method may additionally include, in 3560, the network entity transmitting “eMBMS signaling on the second carrier using a time division duplexing (TDD) protocol configured differently from a TDD protocol used for the anchor carrier.
This can be done to increase the downlink capacity of the second carrier.
The 3300 method may additionally include, in 3570, the network entity transmitting the eMBMS signaling on the second carrier using a network with greater power than a network with less power used for the anchor carrier.
In another alternative, the 3300 method can additionally include, in 3580, the network entity transmitting the eMBMS signaling on the second carrier through a first network using a cyclic prefix of the first type HW (CP), and transmitting the broadcast signal via a second network on the anchor carrier using a second type CP, different from the first type CP.
Na | : alternative to block 3580, method 3300 may additionally include Í, in 3585, the network entity transmitting the eMBMS signaling on the second carrier through a first network using a cyclic prefix of the first type (CP), and transmitting the broadcast signal through a second network on the anchor carrier also using the first type CP, where the first CP
Lau = Pe —— mo re The 74/85 type is selected as the longest CP of two different CP types for the first and second networks.
Correspondingly, figures 36A and 36B show additional optional operations or aspects 3600 that can be performed by the mobile entity in conjunction with method 3400 for using at least one eMBMS | mobile entity of a wireless communications system.
The blocks shown in figures 36A and 36B are not necessary for carrying out the 3400 method. Unless positioned directly on opposite branches outside a diamond "in the alternative", the blocks can be made independently and are not mutually exclusive.
Therefore, any one of said blocks can be realized regardless of whether another block downstream or upstream is realized.
If method 13300 includes at least one block of figures 36A and 36B, then method 3400 may terminate after at least one block, without necessarily needing to include any subsequent downstream block (s) that may (m) ) be illustrated. Conversely, blocks that are positioned directly on opposite branches outside a diamond "in the alternative" must be mutually exclusive alternatives in any particular case of the method. i Method 3400 may additionally include, in 3620, the processing of a mobile entity of a first set of subframes of the anchor carrier for the eMBMS service, and a second set of subframes of the anchor carrier for the unidiffusion service.
The first set of subframes and the second set of subframes must not share any common elements.
In the alternative to block 3620, method 3400 may additionally include, in 3625, the mobile entity processing subframes of the anchor carrier for the unidiffusion service without processing any subframe of the anchor carrier for the eMBMS service. These alternatives are configurable by the network entity (for example, an eNB), which can be distributed to the mobile entity, for example, through a PCCH broadcast in the system information block 13.
The 3400 method may additionally include, in 3630, the mobile entity receiving downlink services exclusive to the receipt of any uplink service on the second carrier.
In the alternative to block 3630, method 3400 may additionally include, in 3635, the mobile entity transmitting the uplink signaling on the second carrier. In the case of 3635 uplink service transmission, Method 3400 may additionally include, in 3638, the use of cross-carrier service on the anchor carrier to avoid processing control symbols on the second carrier. Additionally, the 3400 method may additionally include, in 3640, the mobile entity receiving all acquisition signals on the anchor carrier.
With reference to figure 36B, method 3400 may additionally include, in 3650, the mobile entity processing a first set of subframes of the second carrier for the eMBMS service, and a second set of subframes of the second carrier for the unidiffusion service. The first set of subframes and the second set of subframes must not share any common elements. In the alternative to block 3650, method 3400 may additionally include, in 3655, the mobile entity processing the subframes of the second carrier for the eMBMS service without processing any subframe of the second carrier for unidiffusion service. The 3400 method may additionally include, in 3660, the mobile entity processing the eMBMS service on the second carrier
DM HM using the TDD protocol configured differently from a TDD protocol used for the anchor carrier. This can be done to increase the downlink capacity of the second carrier. The 3400 method may additionally include, in 3670, the mobile entity receiving the eMBMS service on the second carrier over a high power network than a low power network used for the anchor carrier.
The 3400 method can additionally include, in 3680, the mobile entity processing the eMBMS signaling received on the second carrier through a first network using a cyclic prefix of the first type (CP), and the processing of the unicast signaling received through a second network on the anchor carrier using a second type CP, different from the first type CP. In the alternative to block 3680, method 3400 may additionally include, in 3685, a mobile entity processing the eMBMS signaling received on the second carrier through a first network using a first type cyclic prefix (CP), and the processing of the received broadcast signaling through a second network on the anchor carrier also using the first type CP, where the first type CP is selected as the longest CP of two different types of CP for the first and second networks.
With reference to figure 37, in one aspect, Method 3400 may additionally include, in 3790, the mobile entity performing the channel estimate for signals received on a second carrier that does not have unidiffusion subframes using eMBMS reference signals from neighboring eMBMS subframes to perfect the processing gain. The 3400 method may additionally include, in 3792, the mobile entity receiving and processing both the anchor carrier and the second carrier i ch 77/85
7.% co-extensively, for example, in parallel or simultaneously. In the alternative to block 3792, method 3400 may additionally include, in 3794, the mobile entity receiving and selectively processing a single anchor carrier and the second carrier, in response to an alert signal or user registration. In general, with reference to figures 35A and B and 36A and B, the decision functionality associated with branch blocks 3518, 35368, 3552, 3578, 3618, 3628, 3648, 3688, or 3698, like other blocks shown in those figures , can be implemented by software, hardware, a combination thereof or any other suitable mechanisms (for example, device, system, process or component). In this way, for example, branching decisions can be made during execution by a | entity carrying out other aspects of the described method, can be predetermined by the project before the execution of other blocks, or it can be carried out by some combination of the above through several branch blocks. With reference to figure 38, an exemplary device 3800 is provided which can be configured as a network entity or Node B on a wireless network, or as a processor or similar device for use within the network entity or Node B, for delivery of eMBMS. The 3800 device can include function blocks that can represent functions implemented by a processor, software or combination | (for example, firmware). As illustrated, in one embodiment, The 3800 apparatus may include an electrical component or module 3802 for transmitting unidiffusion signaling to a unidiffusion service on an anchor carrier for mobile entities. For example, electrical component 3802 may include at least one control processor coupled to a transceiver or the like and to a memory with instructions for transmitting the unidiffusion signal on an anchor carrier. The electrical component 3802 can be, or can include, transmission mechanisms of unidiffusion signaling for a unidiffusion service in an anchor carrier for mobile entities. Said mechanisms can include the control processor executing an algorithm. The algorithm can include, for example, modulation of | information according to a unidiffusion protocol, and | 10 transmission of modulated information on the anchor carrier.
The 3800 apparatus may include an electrical component 3804 for transmitting eMBMS signaling on a second carrier other than the anchor carrier for the mobile entities for use with unidiffusion signaling.
For example, electrical component 3804 can include at least one control processor coupled to a transceiver or the like and a memory maintaining instructions for transmitting eMBMS signaling on a second carrier. The electrical component 3804 may be, or may include, mechanisms for transmitting eMBMS signaling on a second carrier other than the anchor carrier for the mobile entities for use with unidiffusion signaling. Said mechanisms can include the control processor executing an algorithm. The algorithm can include, for example, the preparation of the second information for transmission through a second transmission stream on the second carrier. the algorithm may additionally include, for example, one or more of the detailed operations described with reference to figures 35A or 35B. The apparatus 3800 may include similar electrical components for carrying out any and all additional operations 3500 described with respect to figures 35A and 35B, which for reasons of illustrative simplicity are not shown in figure 38. In related aspects, the apparatus 3800 may optionally include a 3810 processor component having at least one processor, in the case of a 3800 device configured as a network entity. The 3810 processor, in such a case, may be in operative communication with components 3802 to 3804 or similar components through a 3812 bus or similar communication coupling. The 3810 processor can initiate and program the processes or functions performed by electrical components 3802 to 3804. In additional related aspects, the 3800 device may include a 3814 radio transceiver component. An independent receiver and / or independent transmitter can be used in place of or in conjunction with the transceiver
3814. The 3800 device can optionally include a component for storing information, such as, | for example, a 3816 memory device / component. The computer readable medium or 3816 memory component | can be operatively coupled to other components | device 3800 via the 3812 bus or similar. The 3816 memory component can be adapted to store computer-readable instructions and data for carrying out the activity of components 3802 to 3804, and subcomponents thereof, or oThe 3810 processor, additional aspects 3500, or the methods described here. The 3816 memory component can retain instructions for | execution of functions associated with components 3802 to
3804. While shown to be out of 3816 memory, it is understood that components 3802 to 3804 may exist within 3816 memory.
With reference to figure 39, an exemplary device 3900 is provided which can be configured as a mobile entity or UE on a wireless network, or as a processor or similar device for use within the ME or UE, to access an eMBMS through multiple carriers. The 3900 device can include function blocks that can represent the functions implemented by a processor, software or combination thereof (for example, firmware).
In one embodiment, the 3900 apparatus may include an electrical component or 3902 module for the processing of unidiffusion signaling for a unidiffusion service received on an anchor carrier from a network entity. For example, electrical component 3902 may include at least one control processor coupled to a transceiver or the like and a memory with instructions for receiving and processing unidiff signaling through an anchor on one of the multiple carriers. Electrical component 3902 may be, or may include, mechanisms for receiving and processing unidiffusion signaling through an anchor of one of the multiple “carriers. Said mechanisms can include the control processor executing an algorithm. The algorithm can include, for example, receiving information — modulated on an anchor carrier, e.g. .demodulation of information according to a unidiffusion protocol.
The 3900 apparatus may include an electrical component 3904 for processing the eMBMS signaling received from the network entity on a second carrier other than the anchor carrier. For example, electrical component 3904 can include at least one control processor coupled to a transceiver or similar and to a memory maintaining instructions for O
”E | receiving and processing eMBMS signaling through a second of multiple carriers. Electrical component 3904 may be, or may include, mechanisms for processing eMBMS signaling received from the network entity on a second carrier other than the anchor carrier. Said mechanisms can include the control processor executing an algorithm. The algorithm can include, for example, receiving modulated information on a second carrier in addition to the anchor carrier, and demodulating the information according to an eMBMS protocol. the algorithm may additionally include, for example, one or more of the more detailed operations described with respect to figures 36A and 36B, or
37. The 3900 apparatus may include similar electrical components for carrying out any and all additional operations 3600 described with reference to figures 36A, 36B and 37, which for reasons of simplicity are not shown in figure 39.
In related aspects, the 3900 apparatus may optionally include a 3910 processor component having at least one processor, in the case of the 3900 apparatus configured as a mobile entity. The 3910 processor, in such a case, may be in operative communication with components 3902 to 3904 or similar components through a 3912 bus or similar communication coupling. The 3910 processor can initiate and schedule “processes or functions performed by electrical components 3902-3904. In additional related matters, the 3900 apparatus may include a 3939 radio transceiver component. An independent receiver and / or independent transmitter may be used in place of or in conjunction with the transceiver
3914. The 3900 device can optionally include a component for storing information, such as, for example, a 3916 memory device / component. The computer-readable medium or 3916 memory component can be operatively coupled to other components of the 3800 device via bus 3912 or similar. The memory component 3916 can be adapted to store computer-readable instructions and data for carrying out the activity of components 3902 to 3904 and subcomponents thereof, or the processor 3910, or the additional aspects 3600, or the methods described here. The 3916 memory component can retain instructions for performing the functions associated with the 3902 components to
3904. While shown to be external to 3916 memory, it should be understood that components 3902 to 3904 may exist within 3916 memory.
Those skilled in the art will understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that can be referred to throughout the above description can be represented by voltages, currents, electromagnetic waves, particles or magnetic fields, particles or optical fields or any combination of the same.
Those skilled in the art will further appreciate that the various illustrative logic blocks, modules, circuits, and algorithm steps described with respect to the description presented here can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this ability to exchange hardware and software, several illustrative components, blocks, modules, circuits and steps have been
'”Described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and the design restrictions imposed on the system as a whole. Those skilled in the art can implement the functionality described in various ways for each particular application, but such implementation decisions should not be interpreted as being responsible for departing from the scope of this description.
The various logic blocks, modules and illustrative circuits described in relation to the description presented here can be implemented or carried out with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an array of field programmable port (FPGA) or other programmable logic device, discrete or transistor logic port, discrete hardware components, or any combination of them designed to perform the functions described here. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller or conventional state machine. A processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other similar configuration.
The steps of a method or algorithm described in relation to the description presented here can be incorporated directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM, flash memory, ROM memory, memory. EPROM, .EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
An exemplary storage medium is coupled to the processor so that the processor can read information from and write information to the storage medium.
Alternatively, the storage medium may be part of the processor.
The processor and storage medium can reside in an ASIC.
The ASIC can reside on a user terminal.
Alternatively, the processor and the storage medium can reside as discrete components in a user terminal.
In one or more exemplary projects, the functions described can be implemented in hardware, software, firmware or any combination thereof.
If implemented in software, the functions can be stored in OR transmitted as one or more instructions or code in a computer-readable medium.
Non-transitory computer-readable media includes both computer storage media and temporary memory media, whether or not used to facilitate the transfer of a computer program from one place to another.
A storage medium can be any available medium that can be accessed by a general purpose computer or a special purpose computer.
By way of example and not limitation, such a computer-readable medium may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that may be used to port or store desired program code means in the form of instructions or data structure and which can be accessed by a general or special purpose computer, or a general or special purpose processor. Disc (disc and disc), as used here, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and blu-ray disc where discs (disks) refer to the media holding data that is magnetically encoded, while discs refer to the media retaining data that is optically encoded. The combinations of the above should also be included within the scope of computer-readable media.
The previous description of the description is provided to allow anyone skilled in the art to create and make use of the description. Various modifications to the description will be readily apparent to those skilled in the art, and the generic principles defined here can be applied to other variations without departing from the spirit or scope of the description. As such, the description should not be limited to the examples and projects described here and the broader scope consistent with the principles and novelty features described here should be agreed., | | |

权利要求:
Claims (29)
[1]
1. Method for transmitting an enhanced Multimedia Broadcast / Broadcasting Service (eMBMS) using multiple carriers of a wireless communication system, the method characterized by the fact that it comprises: - transmitting (810) Broadcast Multimedia / Broadcasting Service signals (MBMS) on a Single Frequency Network (MBSFN) from a base station on a secondary carrier; - transmit (820) information used to acquire a Multicast Control Channel (MCCH) from the base station on a primary carrier, where the base station also transmits at least unidiff signaling on the primary carrier; and - include the information to acquire the MCCH in the dedicated signaling on the primary carrier for one or more retro-compatible carriers carrying eMBMS signals, while including the information to acquire an MCCH in common signaling on the primary carrier for one or more non-retro- compatible with eMBMS signaling.
[2]
2. Method, according to claim 1, characterized by the fact that it also includes the information to acquire the MCCH in a System Information Block (SIB) of the primary carrier.
[3]
3. Method, according to claim 1, characterized by the fact that it also includes at least part of the information to acquire the MCCH in one or more System Information Blocks (SIBs) of the primary carrier.
[4]
4. Method, according to claim 3, characterized by the fact that it also includes at least a part of the information to acquire the MCCH in a SIB13 of the primary carrier.
[5]
5. Method according to claim 1, characterized by the fact that it also comprises transmitting MBSFN signaling on the second carrier using a time division duplexing (TDD) protocol configured differently from a TDD protocol used for the primary carrier.
[6]
6. Device (1200) to transmit Broadcast Multimedia Broadcast / Broadcast Service (eMBMS) using multiple carriers of a wireless communication system, the device (1200) characterized by the fact that it comprises: - mechanisms (1202) to transmit ( 810) Multimedia Broadcast / Multicast Service (MBMS) signals on a Single Frequency Network (MBSFN) from a base station on a secondary carrier; - mechanisms (1204) for transmitting (820) information used to acquire a Multicast Control Channel (MCCH) from the base station on a primary carrier, where the base station also transmits at least unidiff signaling on the primary carrier; and - mechanisms (1206) for including (1010) the information to acquire the MCCH in the dedicated signaling on the primary carrier for one or more backwards compatible carriers carrying eMBMS signals, while including the information for acquiring an MCCH on the common signaling on the primary carrier for one or more non-backward compatible carriers carrying eMBMS signaling.
[7]
7. Apparatus according to claim 6, characterized by the fact that it also comprises mechanisms for transmitting MBSEN signaling on the second carrier using a time division duplexing protocol
(TDD) configured differently from a TDD protocol used for the primary carrier.
[8]
8. Method for receiving evolved Multimedia Broadcast / Multicast Service (eMBMS) using multiple carriers of a wireless communication system, the method characterized by the fact that it comprises: - receiving (1310) Multimedia Broadcast / Multicast Service signals (MBMS) in a Single Frequency Network (MBSFN) in a mobile entity on the secondary carrier; and - receiving (1320), on the primary carrier, at least part of the information to acquire a Multicast Control Channel (MCCH) in one or more System Information Blocks of the primary carrier, where the primary carrier also includes at least unicast signaling, in which at least a part of the information to acquire the MCCH is included in the dedicated signaling on the primary carrier for one or more retro-compatible carriers carrying eMBMS signals, while the information for acquiring an MCCH is included in common signaling in the primary carrier for one or more non-backward compatible carriers carrying eMBMS signaling.
[9]
9. Method, according to claim 8, characterized by the fact that it also comprises receiving the information to acquire the MCCH in a System Information Block 13 (SIB1l3) of the primary carrier.
[10]
10. Method, according to claim 8, characterized by the fact that it also comprises receiving at least a part of the information to acquire the MCCH in a SIBl3 of the primary carrier.
[11]
11. Method according to claim 8, characterized by the fact that it also comprises processing MBSFN signaling on the second carrier using a time division duplexing (TDD) protocol configured differently from a TDD protocol used for the primary carrier.
[12]
12. Device (1600) to receive Broadcast Multimedia Broadcast / Broadcast Service (eMBMS) using multiple carriers of a wireless communication system, the device characterized by the fact that it comprises: - mechanisms (1602) to receive (1310) signals of Multimedia Diffusion / Multidiffusion Service (MBMS) on a Single Frequency Network (MBSFN) on a mobile entity on the secondary carrier; and - mechanisms (1604) for receiving (1320), on the primary carrier, at least a part of the information to acquire a Multicast Control Channel (MCCH) in one or more System Information Blocks (SIBs) of the primary carrier, in that the primary carrier also includes at least unidiffusion signaling, where at least a portion of the information to acquire the MCCH is included in the dedicated signaling on the primary carrier for one or more backwards compatible carriers carrying eMBMS signals, while the information to acquire an MCCH is included in common signaling on the primary carrier for one or more non-retro-compatible carriers carrying eMBMS signaling.
[13]
13. Apparatus according to claim 12, characterized by the fact that it also comprises processing MBSFN signaling on the second carrier using a time division duplexing (TDD) protocol configured differently from a TDD protocol used for the primary carrier.
[14]
14. Apparatus according to claim 12, characterized by the fact that the one or more SIBs are a
System Information Block 13, SIBl3, of the primary carrier.
[15]
15. Method for allocating subframes used for Multimedia Broadcast / Multicast Service (MBMS) in a Single Frequency Network (MBSEN) of a wireless communication system, the method characterized by the fact that it comprises: - allocating at least part one or more subframes on the other hand reserved for single-frame subframes on a mixed carrier to provide an increased allocation of subframes carrying MBSEN information; and - transmit MBSEN signals in the increased allocation of subframes.
[16]
16. Method, according to claim 15, characterized by the fact that it also comprises allocating subframe 5 in the odd radio frames for MBSFN information.
[17]
17. Method, according to claim 15, characterized by the fact that it also comprises allocating subframes according to a Frequency Division Duplexing (FDD) protocol, or allocating subframes according to a Time Division Duplexing protocol ( TDD).
[18]
18. Method according to claim 17, characterized by the fact that it also comprises allocating at least one among subframes 4 and 9 for MBSFN information when subframes are allocated according to an FDD protocol, or allocating at least one among subframes 1 and 6 for MBSFN information when subframes are allocated according to a TDD protocol.
[19]
19. Method, according to claim 15, characterized by the fact that it also comprises allocating subframes to provide an increased allocation of subframes to accommodate a temporary period of dedicated use of the mixed carrier for MBSFN.
[20]
20. Method, according to claim 19, characterized by the fact that it also comprises relocating at least a part of one or more subframes on the other hand reserved for unidiffusion signaling, in response to the expiration of the temporary period.
[21]
21. Apparatus to allocate subframes used for Multimedia Broadcasting / Multidiffusion Service (MBMS) in a Single Frequency Network (MBSFN) of a wireless communication system, the apparatus characterized by the fact that it comprises: - mechanisms to allocate at least a portion of one or more subframes on the other hand reserved for unidiffusion signaling on a mixed carrier to provide an increased allocation of subframes carrying MBSFN information; and - mechanisms for transmitting MBSEFN signals in the increased allocation of subframes.
[22]
22. Method for interpreting subframes used for Multimedia Broadcast / Multicast Service (MBMS) in a Single Frequency Network (MBSFN) of a wireless communication system, the method characterized by the fact that it comprises: - determining that an MBSEN signal has an increased allocation of subframes carrying MBSFN information, in which one or more subframes previously reserved for single-broadcast signals is allocated instead of multi-broadcast signals; and - decoding the MBSFN signal according to the increased allocation to provide an output of multicast content.
[23]
23. Method, according to claim 22, characterized - * in that it also comprises decoding subframe 5 in the odd radio frames for MBSFN information.
[24]
24. Method, according to claim 22, characterized by the fact that it also comprises decoding subframes according to a Frequency Division Duplexing (FDD) protocol, or decoding subframes according to a Time Division Duplexing protocol ( TDD).
[25]
25. Method, according to claim 24, characterized by the fact that it also comprises decoding at least one among subframes 4 and 9 for MBSFN information when subframes are decoded according to an FDD protocol, or decoding at least one among subframes 1 and 6 for MBSFN information when subframes are decoded according to a TDD protocol.
[26]
26. Method, according to claim 22, characterized - by the fact that it also comprises decoding the subframes to obtain an increased allocation of subframes to accommodate a temporary period of dedicated use of the mixed carrier for MBSEFN.
[27]
27. Method, according to claim 26, characterized by the fact that it also comprises decoding at least a part of one or more subframes on the other hand reserved for unicast signals and allocated “temporarily to MBSFN signals for unicast signaling, in response to the expiration of the temporary period.
[28]
28. Apparatus for interpreting subframes used for Multimedia Diffusion / Multidiffusion Service (MBMS) in a Single Frequency Network (MBSFN) of a wireless communication system, the apparatus characterized by the fact that it comprises:
- mechanisms for determining that an MBSFN signal has an increased allocation of subframes carrying MBSFN information, in which one or more subframes previously reserved for single-frame signals is allocated instead of multi-frame signals; and - mechanisms for decoding the MBSFN signal according to the increased allocation to provide multicast content output.
[29]
29. Computer-readable medium characterized by the fact that it comprises instructions for carrying out the steps according to any one of claims 1 to 5; or 8 to 11; or from 15 to 20; or 22 to 27 when running on a computer.

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法律状态:
2020-12-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-12-08| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04W 4/06 Ipc: H04L 5/14 (2006.01), H04W 72/04 (2009.01) |

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2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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2022-03-03| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|

优先权:

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US201161445990P| true| 2011-02-23|2011-02-23|

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PCT/US2012/026379|WO2012116219A1|2011-02-23|2012-02-23|Carrier aggregation for evolved multimedia broadcast multicast service enhancement|

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