巴西专利BR112016009985A2 SOFT BUFFER MANAGEMENT

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SOFT BUFFER MANAGEMENTThe present invention relates to soft buffer management in which a base station determines a first number of component carriers (CCs) monitored by user equipment (UE), and determines a second number of CCs to partition a soft buffer to store one or more unsuccessful data packets, where the second number is different from the first number. Several aspects provide the determination of the second number of CCs using information from the assessment of free channel assessment (CCA) in relation to unlicensed CCs used in the communication system.
公开号:BR112016009985A2
申请号:R112016009985-0
申请日:2014-10-01
公开日:2020-08-18
发明作者:Wanshi Chen；Peter Gaal；Tao Luo；Hao Xu；Durga Prasad Malladi；Naga Bhushan；Tingfang JI
申请人:Qualcomm Incorporated；
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专利说明:

[0001] [0001] This application claims the benefit of US Provisional Patent Application No. 61 / 899,666, entitled “SOFT BUFFER MANAGEMENT”, filed on November 4, 2013, and US Utility Patent Application No. 14 / 502,848 entitled “SOFT BUFFER MANAGEMENT ”, filed on September 30, 2014, which are expressly incorporated by reference in their entirety. BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
[0002] [0002] Aspects of the present invention relate in general to wireless communication systems and, more particularly, to the soft buffer management in wireless systems, including unlicensed spectrum. BACKGROUND OF THE INVENTION
[0003] [0003] Wireless communication networks are widely used to provide various communication services, such as voice, video, packet data, messages, transmission, and so on. These wireless networks can be multiple access networks capable of supporting multiple users by sharing available network resources. These networks, which are usually multiple access networks, support communications for multiple users by sharing available network resources. An example of such a network is the Universal Terrestrial Radio Access Network (UTRAN). The UTRAN is the radio access network (RAN) defined as a part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile telephony technology supported by the Third Generation Partnership Project (3GPP). Examples of multiple access network formats include Code Division Multiple Access networks (CDMA), Multiple Access networks by
[0004] [0004] A wireless communication network can include a series of base stations or BS nodes that can support communication to a number of user devices (UEs). A UE can communicate with a base station via uplink and downlink. The downlink (or direct link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.
[0005] [0005] A base station can transmit downlink control data and information to a UE and / or can receive uplink control data and information from the UE. On the downlink, a transmission from the base station may encounter interference due to transmissions from neighboring base stations or other wireless radio frequency (RF) transmitters. On the uplink, a transmission from the UE may encounter interference from uplink transmissions from other UEs that communicate with neighboring base stations or from other wireless RF transmitters. This interference can degrade performance on both the uplink and uplink.
[0006] [0006] As the demand for mobile broadband access continues to increase, the possibilities for interference and congested networks grow with more UEs accessing long-range wireless communication networks and more short-range wireless systems being deployed in communities. Research and development continues to advance UMTS technologies, not only to meet the growing demand for access to mobile broadband, but to advance and improve the user experience with mobile communications. SUMMARY OF THE INVENTION
[0007] [0007] In one aspect of the invention, a wireless communication method includes determining, by a base station, a first series of component carriers (CCs) monitored by a UE and determining, by the base station, a second number of CCs for partition of a soft buffer to store one or more unsuccessful decoded data packets, where the second number is different from the first number.
[0008] [0008] In a further aspect of the invention, an apparatus configured for wireless communication includes means for determining, by a base station, a first number of CCs monitored by a UE and means for determining, by the base station, a second number of CCs to partition a soft buffer to store one or more unsuccessful decoded data packets, where the second number is different from the first number.
[0009] [0009] In a further aspect of the invention, a computer reading medium having the program code registered therein includes code to determine, by a base station, a first number of CCs monitored by a UE and code to determine, by the station base, a second number of CCs for partitioning a soft buffer to store one or more unsuccessful decoded data packets, where the second number is different from the first number.
[0010] [0010] In a further aspect of the invention, an apparatus includes at least one processor and a memory coupled to the processor. The processor is configured to determine, by a base station, a first series of CCs monitored by an UE and to determine, by the base station, a second number of CCs to partition a soft buffer to store one or more unsecured data packets , where the second number is different from the first number. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] [0011] FIG. 1 shows a diagram illustrating an example of a wireless communications system according to various embodiments.
[0012] [0012] FIG. 2A shows a diagram that illustrates examples of implementation scenarios for using LTE in an unlicensed spectrum according to various embodiments.
[0013] [0013] FIG. 2B shows a diagram illustrating another example of a deployment scenario for using LTE in an unlicensed spectrum according to various embodiments.
[0014] [0014] FIG. 3 shows a diagram illustrating an example of carrier aggregation when LTE is used simultaneously in licensed and unlicensed spectrum according to various embodiments.
[0015] [0015] FIG. 4 is a conceptual block diagram illustrating a design of a base station / eNB and a UE configured in accordance with an aspect of the present invention.
[0016] [0016] FIGSS. 5-11 are functional block diagrams that illustrate examples of blocks executed to implement various aspects of the present invention. DETAILED DESCRIPTION
[0017] [0017] The following detailed description, in connection with the accompanying drawings, is intended as a description of various configurations and is not intended to limit the scope of the description. Instead, the detailed description includes specific details for the purpose of providing a complete understanding of the inventive material. It will be apparent to those skilled in the art that these specific details are not required in each case and that, in some cases, well-known structures and components are shown in the form of a block diagram for clarity of presentation.
[0018] [0018] Operators, until now, have seen WiFi as the main mechanism for using the unlicensed spectrum to alleviate the ever increasing levels of congestion in cellular networks. However, a new type of carrier (NCT) based on LTE in an unlicensed spectrum may be compatible with WiFi at the carrier level, making LTE / LTE Advanced (LTE-A) with the unlicensed spectrum an alternative to WiFi. LTE / LTE- A with unlicensed spectrum can leverage LTE concepts and may introduce some modifications to the physical layer (PHY) and access control aspects of the network (MAC) of the network or network devices to provide efficient operation of the non-spectrum licensed and to meet regulatory requirements. The unlicensed spectrum can range from 600 Megahertz (MHz) to 6 Gigahertz (GHz), for example. In some scenarios, LTE / LTE-A with unlicensed spectrum may perform significantly better than WiFi. For example, an all LTE / LTE-A deployment with unlicensed spectrum (for single or multiple operators) compared to one deploying all over Wi-Fi, or when there are small dense cell deployments, LTE / LTE-A with unlicensed spectrum can perform significantly better than Wi-Fi. LTE / LTE-A with unlicensed spectrum can work better than WiFi in other scenarios, such as when LTE / LTE-A with unlicensed spectrum is mixed with Wi-Fi (by single or multiple operators).
[0019] [0019] For a single service provider (SP), an LTE / LTE-A network in an unlicensed spectrum can be configured to be synchronous with an LTE network in the licensed spectrum. However, LTE / LTE-A networks with unlicensed spectrum deployed on a given channel by multiple SPs can be configured to be synchronous between the various SPs. One approach to incorporating both of the above features may involve the use of a constant shift in synchronism between LTE / LTE-A with and without the unlicensed spectrum for a given SP. An LTE / LTE-A network with unlicensed spectrum can provide unidiffusion and / or multicast services according to the needs of the SP. In addition, an LTE / LTE-A network with unlicensed spectrum can operate in a bootstrap mode in which LTE cells act as an anchor and provide relevant cell information (eg radio frame timing, common channel configuration , number of system frames or SEN, etc.). Thus, there may be close interworking between LTE / LTE-A with and without the unlicensed spectrum. For example, the bootstrap mode can support the complementary downlink and carrier aggregation modes described above. The PHY-MAC layers of the LTE / LTE-A network with the unlicensed spectrum can operate in an autonomous mode, in which the LTE / LTE-A network with and without the unlicensed spectrum works independently of an LTE network. In this case, there may be loose interworking between LTE / LTE-A, with and without the unlicensed spectrum based on aggregation at the RLC level with co-located cells, or multi-flow across multiple cells and / or base stations, for example .
[0020] [0020] The techniques described here are not limited to LTE, and can also be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technology, such as CDMAZ000, Universal Terrestrial Radio Access (UTRA), CDMAZ00O0 covers IS- etc. 2000, 1IS-95 and IS-856. The IS-2000 O and A launches are commonly referred to as CDMAZ2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMAZ000 1xEV-DO, High Speed Packet Data (HRPD), etc. UTRA includes Broadband CDMA (WCDMA), and other variants of CDMA. A TDMA system can implement radio technology, such as the Global System for Mobile Communications (GSM). An OFDM system can implement radio technology, such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE
[0021] [0021] Thus, the following description provides examples, and is not limiting the scope, applicability or configuration defined in the claims. Changes can be made to the function and arrangement of the elements discussed, without departing from the spirit and scope of the invention. Various embodiments may omit, replace or add various procedures or components, as appropriate. For example, the methods described can be performed in a different order than described, and several steps can be added, omitted or combined. In addition, the features described in relation to certain embodiments can be combined in other embodiments.
[0022] [0022] With reference, first, to FIG. 11, a diagram illustrates an example of a wireless communications system or network 100. System 100 includes base stations (or cells) 105, communication devices 115 and a main network 130. Base stations 105 can communicate with devices of communication 115 under the control of a base station controller (not shown), which can be part of central network 130 or base stations 105 in various embodiments. Base stations 105 can communicate control information and / or user data with the central network 130 via backhaul links 132. In embodiments, base stations 105 can communicate, either directly or indirectly, with each other via links backhaul 134, which can be wired or wireless communication links. System 100 can support operation on multiple carriers (waveform signals of different frequencies). Multiple carrier transmitters can transmit modulated signals simultaneously on multiple carriers. For example, each communication link 125 may be a multi-carrier signal modulated according to the various radio technologies described above. Each modulated signal can be sent on a different carrier and can carry control information (for example, reference signals, control channels, etc.), suspended information, data, etc.
[0023] [0023] Base stations 105 can communicate wirelessly with devices 115 via one or more base station antennas. Each of the base station locations 105 can provide communication coverage for a respective geographic area 110. In some embodiments, base stations 105 can be referred to as a transceiver base station, a radio base station, an access point, a radio transceiver, a set of basic services (BSS), a set of extended services (ESS), a NodeB, eNodeB (eNB), Domestic NodeB, a Domestic eNodeB, or some other suitable terminology. Coverage area 110 for a base station can be divided into sectors that constitute only a part of the coverage area (not shown). System 100 can include base stations 105 of different types (for example, macro, micro and / or pico base stations). There may be overlapping coverage areas for different technologies.
[0024] [0024] In some embodiments, system 100 is an LTE / LTE-A network that supports one or more modes of operation or deployment scenarios with unlicensed spectrum. In other embodiments, system 100 can support wireless communications using unlicensed spectrum and access technology other than LTE / LTE-A with unlicensed spectrum, or licensed spectrum and access technology other than LTE / LTE-A. The terms evolved NodeB (eNB) and user equipment (UE) can generally be used to describe base stations 105 and devices 115,
[0025] [0025] The central network 130 can communicate with the eNBs 105 through a backhaul 132 (for example, S1l, etc.). ENBs 105 can also communicate with each other, for example, directly or indirectly, through backhaul links 134 (eg, X2, etc.) and / or through backhaul links 132 (eg, via the central network 130). System 100 can support synchronous or asynchronous operation. For synchronous operation, eNBs can have similar frame synchronization and / or gating, and the transmissions of different eNBs can be approximately aligned in time. For asynchronous operation, eNBs can have different frame synchronization and / or switching, and transmissions from different eNBs cannot be aligned over time. The techniques described here can be used for both synchronous and asynchronous operations.
[0026] [0026] The UEs 115 are dispersed throughout the system 100, and each UE can be fixed or mobile. A UE 115 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless device wireless communication, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a portable device, a user agent, a mobile client, a customer or some other appropriate terminology. An UE 115 can be a cell phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a tablet computer, a portable computer, a wireless local circuit station (WLL) , or similar. A UE may be able to communicate with macro-eNBs, pico-eNBs, femto-eNBs, relays and the like.
[0027] [0027] Communication links 125 shown on system 100 may include uplink (UL) transmissions from a mobile device 115 to a base station 105, and / or downlink (DL) transmissions from a base station 105 for a mobile device 115. Downlink transmissions can also be called forward link transmissions while uplink transmissions can also be called reverse link transmissions. Downlink transmissions can be made using either a licensed spectrum, an unlicensed spectrum, or both. Likewise, uplink transmissions can be made using either a licensed spectrum, an unlicensed spectrum, or both.
[0028] [0028] In some embodiments of system 100, several deployment scenarios for LTE / LTE-A with unlicensed spectrum can be supported, including a complementary downlink mode (SDL) in which the LTE downlink capability in a licensed spectrum can be transferred to an unlicensed spectrum, a carrier aggregation mode in which both LTE uplink and downlink capabilities can be downloaded from a licensed spectrum to an unlicensed spectrum, and an autonomous mode , where LTE downlink and uplink communications between a base station (e.g., eNB) and a UE can occur in an unlicensed spectrum. Base stations 105, like UEs 115, can support one or more of these or similar modes of operation. OFDMA communications signals can be used on communication links 125 for LTE downlink transmissions in an unlicensed spectrum, while SC-FDMA communications signals can be used on communications links 125 for LTE uplink transmissions in an unlicensed spectrum. Additional details on the implementation of LTE / LTE-A with scenarios of deployment of unlicensed spectrum or modes of operation in a system such as system 100, as well as other features and functions related to the operation of LTE / LTE-A with the spectrum not licensed, are provided below with reference to FIGS. 2A - 11.
[0029] [0029] Turning to FIG. 2A, a diagram 200 shows examples of a complementary downlink mode and a carrier aggregation mode for an LTE network that supports LTE / LTE-A with unlicensed spectrum. Diagram 200 can be an example of parts of system 100 of FIG. 1. In addition, base station 105-a can be one of the base stations 105 of FIG. 1, while UEs 115-a can be examples of UEs 115 of FIG. 1.
[0030] [0030] In the example of a complementary downlink mode in diagram 200, base station 105-a can transmit OFDMA communication signals to a UE 115-a using a downlink 205. Downlink 205 is associated with a frequency Fl in an unlicensed spectrum. The base station 105-a can transmit communication signals in OFDMA to the same UE 115-a using a bidirectional connection 210 and can receive communication signals in SC-FDMA from the UE 115-a using the bidirectional connection 210. A bidirectional link 210 is associated with an F4 frequency in a licensed spectrum. Downlink 205 in the unlicensed spectrum and bidirectional link 210 in the licensed spectrum can operate simultaneously. Downlink 205 can provide a discharge of downlink capability to base station 105-a. In some embodiments, the forward link 205 can be used for one-way services (for example, addressed to a UE) or for multi-service (for example, directed to several UEs). This scenario can occur with any service provider (for example, traditional mobile network operator or MNO) that uses a licensed spectrum and needs to relieve traffic and / or signal congestion a little.
[0031] [0031] In an example of a carrier aggregation mode in diagram 200, base station 105-a can transmit communication signals in OFDMA to a UE 115-a using a bidirectional link 215 and can receive communication signals in SC- FDMA of the same UE 115-a using the bidirectional link 215. The bidirectional link 215 is associated with the frequency F1 in the unlicensed spectrum. The base station 105-a can also transmit communication signals in OFDMA to the same UE 115-a using a bidirectional connection 220 and can receive communication signals in SC-FDMA from the same UE 11115-a using the bidirectional connection 220. The connection bidirectional 220 is associated with an F2 frequency in a licensed spectrum. The bidirectional connection 215 can provide a discharge of the uplink and downlink capability to the base station 105-a. Like the complementary downlink described above, this scenario can occur with any service provider (for example, MNO) that uses a licensed spectrum and needs to alleviate some traffic and / or signal congestion.
[0032] [0032] In another example of a carrier aggregation mode in diagram 200, base station 105-a can transmit communication signals in OFDMA to a UE 115-a using a bidirectional connection 225 and can receive communication signals in SC- FDMA of the same UE 115-a using the bidirectional link 225. The bidirectional link 225 is associated with the frequency F3 in an unlicensed spectrum. The base station 105-a can also transmit communication signals in OFDMA to the same UE 115-a using a bidirectional connection 230 and can receive communication signals in SC-FDMA from the same UE 11115-a using the bidirectional connection 230. The connection bidirectional 230 is associated with frequency F2 in the licensed spectrum. The bidirectional connection 225 can provide a discharge of the uplink and downlink capability to the base station 105-a. This example and those provided above are presented for illustrative purposes and there may be other similar modes of operation or deployment scenarios that combine LTE / LTE-A with and without unlicensed spectrum for capacity discharge.
[0033] [0033] As described above, the typical service provider that can benefit from offloading the capacity offered using LTE / LTE-A with an unlicensed band is a traditional MNO with LTE spectrum. For these service providers, an operational configuration may include a bootstrap mode (for example, complementary downlink, carrier aggregation) that uses the main component carrier (PCC) in the licensed spectrum and the secondary component carrier (SCC) in the non-spectrum. licensed.
[0034] [0034] In the complementary downlink mode, control for LTE / LTE-A with the unlicensed spectrum can be transported via the LTE uplink (for example, the uplink part of the two-way link 210). One of the reasons for providing downlink capacity discharge is because data demand is largely driven by downlink consumption. In addition, in this way, there may be no regulatory impact, as the UE is not transmitting in the unlicensed spectrum. There is no need to implement listen-before-speak (LBT) or Carrier Sensing Multiple Access (CSMA) resources in the UE. However, LBT can be implemented at the base station (for example, eNB), for example, using a periodic free channel assessment (CCA) and / or a grab-and-relinquish mechanism aligned to a radio frame border.
[0035] [0035] In carrier aggregation mode, data and control can be communicated in LTE (for example, bidirectional connections 210, 220 and 230), while data can be communicated in LTE / LTE-A with the unlicensed spectrum (for example, example, bidirectional connections 215 and 225). The carrier aggregation mechanisms supported when using LTE / LTE-A with the unlicensed spectrum may fall within the scope of a frequency-duplex duplexing (FDD-TDD) carrier aggregation or an aggregation of TDD-TDD carrier with different symmetry between component carriers.
[0036] [0036] FIG. 2B shows a diagram 200-a that illustrates an example of an autonomous mode for LTE / LTE-A with unlicensed spectrum. Diagram 200-a can be an example of parts of system 100 of FIG. 1. In addition, base station 105-b can be an example of base stations 105 of FIG. 1 and the base station 105-a of FIG. 2A, while UE 115-b can be an example of UEs 115 of FIG. 1 and the UEs 115-a of FIG. 2A.
[0037] [0037] In the autonomously example in diagram 200-a, base station 105-b can transmit communication signals in OFDMA to UE 115-b using a bidirectional link 240 and can receive communication signals in SC-FDMA a from UE 115-b using bidirectional connection
[0038] [0038] Turning to FIG. 3, a diagram 300 illustrates an example of carrier aggregation when using LTE simultaneously in spectrum with and without license according to various embodiments. The carrier aggregation scheme in diagram 300 may correspond to the hybrid FDD-TDD carrier aggregation described above with reference to FIG. 2A. This type of carrier aggregation can be used in at least parts of the system 100 of FIG. 1. In addition, this type of carrier aggregation can be used at base stations 105 and 105-a of FIG. 1 and FIG. 2A, respectively, and / or at UEs 115 and 115-a of FIG. 1 and FIG. 2A, respectively.
[0039] [0039] In this example, an FDD (FDD-LTE) can be performed in connection with LTE on the downlink, a first TDD (TDD1) can be performed in connection with LTE / LTE-A, with unlicensed spectrum, a second TDD (TDD2) can be performed in connection with LTE, and another FDD (FDD-LTE) can be performed in connection with LTE in the uplink. TDD1 results in a DL: UL ratio of 6: 4, while the ratio for TDD2 is 7: 3. On the time scale, the different effective DL: UL ratios are 3: 1, 1: 3, 2: 2, 3: 1, 2: 2 and 3: 1. This example is presented for illustrative purposes and there may be other carrier aggregation schemes that combine LTE / LTE-A operations, with and without the unlicensed spectrum.
[0040] [0040] FIG. 4 shows a block diagram of a base station / eNB 105 design and an EU 115, which can be one of the base stations / eNBs and one of the UEs in FIG. l1. The eNB 105 can be equipped with antennas 434a up to 434t, and the UE 115 can be equipped with antennas 452a up to 452r.
[0041] [0041] In UE 115, antennas 452a through 452r can receive downlink signals from eNB 105 and can provide received signals to demodulators (DEMODs) 454a through 454r, respectively. Each demodulator 454 can condition (for example, filter, amplify, convert negatively and digitize) a respective received signal to obtain input samples. Each demodulator 454 can further process the input samples (for example, for OFDM, etc.) to obtain received symbols. A MIMO 456 detector can obtain symbols received from all demodulators 454a through 454r, perform MIMO detection for received symbols, if applicable, and provide detected symbols. A receiving processor 458 can process (e.g., demodulate, deinterleave and decode) the detected symbols, provide decoded data for UE 115 to a data collector 460, and provide decoded control information to a controller / processor 480.
[0042] [0042] On the uplink, in UE 115, a transmission processor 464 can receive and process data (for example, for the physical uplink shared channel (PUSCH) from a data source 462 and control information (for example example, for the physical uplink control channel (PUCCH) from controller / processor 480. The 464 transmission processor can also generate reference symbols for a reference signal. The symbols from the 464 transmission processor can be pre-coded by a MIMO TX 466 processor, if applicable, still processed by demodulators 454a through 454r (eg for SC-FDM, etc.), and transmitted to eNB 105. In eNB 105, the uplink signals from the UE 115 can be received by antennas 434, processed by modulators 432, detected by a MIMO detector 436, if applicable, and later processed by a receiving processor 438 to obtain decoded data and control the information sent by the UE 115. The processor 438 can provide the decoded data to a data collector 439 and the decoded control information to the controller / processor 440.
[0043] [0043] The controllers / processors 440 and 480 can guide the operation in eNB 105 and UE 115, respectively. The controller / processor 440 and / or other processors and modules in the eNB 105 can execute or guide the execution of various processes towards the techniques described here. Controllers / processor 480 and / or other processors and modules in UE 115 may also realize or guide the execution of the functional blocks illustrated in FIG. 5-11, and / or other processes for the techniques described herein. Memories 442 and 482 can store data and program codes for eNB 105 and UE 115, respectively. A programmer 444 can program UEs for data transmission on the downlink and / or uplink.
[0044] [0044] In LTE, a UE can be configured with two or more component carriers or CCs and assigned to one of the eight UE categories, where each of these categories is associated with a total number of flexible channel bits (soft) . Table 1 provides the current eight defined categories, along with the associated maximum number of downlink shared channel transport block (DL-SCH) bits that are received within a given transmission time interval (TTI), the maximum number of bits of a DL-SCH transport block that can be received within a TTI, the total number of flexible channel bits available for the soft buffer, and the maximum number of support layers for spatial multiplexing on the downlink. Cat. Do | Maximum No. | Maximum No. | Total No. | Maximum EU Number of Bits of | Bits of | Bits of | Block Layers | a Block | Supported Canal Transport | from Flexible to from DL-SCH | Multiplexing Transport Received from the Space DL-SCH within | Received DL a TTI within a TTI
[0045] [0045] As shown in Table 1, Categories 6 and 7 can use 2 or 4 layers of spatial multiplexing. Therefore, the maximum number of bits of the DL-SCH transport block that can be received within a TTI is different depending on whether 2 or 4 layers are used.
[0046] [0046] The soft buffer is provided to store unsuccessful decoded data packets for use in flexible combination with retransmitted data packets according to the downlink hybrid automatic repeat (HARQ) request processes. Within each CC that used downlink transmissions, each HARQ process is generally divided evenly across the CC. There are different numbers of HARQ processes available, depending on whether the transmissions are frequency division duplex (FDD) or time division duplex (TDD) and, if in TDD, which uplink / downlink subframe configuration is used. In FDD, there are up to 8 HARQ downlink processes. In TDD, the number of downlink HARQ processes depends on the TDD uplink / downlink subframe configuration, and can be up to 15, as shown in Table 2 below. The soft buffer is usually partitioned, in a semi-static way, between the HARQ processes, code words and number of configured CCs.
[0047] [0047] At the base station or eNB, the size of the soft buffer for a transport block can be represented by the following equation:
[0048] [0048] For EU level soft buffer partition, both for frequency division duplex (FDD) and TDD, if the EU is configured with more than one server cell, then, for each server cell, for at least Kummo * min (Mp narosr Miuimic) transport blocks, upon failure to decode a code block of a transport block, the UE can store received flexible channel bits corresponding to an interval of at least Wky Wkily «- /, Wmod (kinSB-l, Nckb), IN which:
[0049] [0049] Due to the use of unlicensed spectrum in licensed / unlicensed hybrid communications, such as LTE / LTE-A with unlicensed spectrum, there are several specific properties associated with LTE / LTE-A with unlicensed spectrum and other communications systems that incorporate the use of unlicensed spectrum. For example, regarding the total number of CCs configured for a UE, in a given frame (Nrte-Unlicensead), the total number of CCs with free channel evaluation (CCA) released may be less than Nrute-unlicensed. Some LTE / LTE-A unlicensed spectrum component carriers may not have CCA cleared for a frame. In each CC, depending on the deployment scenario (for example, complementary downlink (SDL), carrier aggregation (CA) or autonomous (SA)), and HARQ design, oThe maximum number of HARQ processes can be large. In addition, some HARQ processes may have small HARD recognition timing, while others may have very large HARQ ACK timing, even under perfect CCA release. In a given CC, depending on the CCA release status, one or more HARQ processes may not have an opportunity to relay for a long period of time. Samples in the corresponding soft buffer for the one or more HARQ processes can thus become obsolete.
[0050] [0050] Currently, the LTE model provides that the number of CCs configured for a given UE will be used in the soft buffer partition. However, because the use of the unlicensed spectrum for some CCs does not guarantee transmission through such CCs, several aspects of the present invention are directed to the determination of soft buffer partition using a different number of CCs than simply the number of CCS configured for the UE. FIG. 5 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 500, a base station determines a first number of CCs configured for a UE. Using unlicensed CCs, this first number of CCs can include the total number of unlicensed CCs configured for use by the UE.
[0051] [0051] In block 501, the base station identifies, within the number of CCs, a first set of CCs subject to CCA operation. Transmission through the first set of CCs will therefore be subject to release CCA checks. In block 502, the base station determines the partition of a soft buffer based, at least in part, on the number of CCs and the first set of CCs subject to CCA operation, the base station determines a second number of CCs for partition of a soft buffer, in which the second number is different from the first number. Instead of partitioning the soft buffer using only the total number of CCs configured for the UE, the partition will be based on at least the total number of configured CCs and the number of CCs that are subjected to CCA operations.
[0052] [0052] Several additional aspects of the present invention are directed to soft buffer partition through different CCs based on CCA release statistics between configured Nrreg-unlicensea carriers. In determining the number of CCs configured for use in the soft buffer partition, the total number of CCs configured includes the total number of licensed CCs configured, for example, Nite, & The total number of unlicensed CCs, Nite-unlicensea- However , in a given chart, there may be only K <= Nrrie-unlicensea carriers with CCA release. Thus, a base station can choose different HARQ termination targets based on CCA statistics.
[0053] [0053] FIG. 6 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 600, a base station determines a number of licensed CCs monitored by the UE. In block 601, the base station determines the number of unlicensed CCs monitored by the UE and with a CCA released in a given frame, K. In determining the total number of downlink CCs configured, Neeviis, the base station, in block 602 , adds the total number of licensed CCs, Nrre, to the unlicensed CCs released in the frame, K. In block 603, the base station partitions the soft buffer based on this total number of configured CCs that include the CCA release statistics for each painting. Although this aspect provides a series of CCs for use in the partition that is more accurate, in some ways it can be very dynamic, since the number of unlicensed CCs with clear CCA detected can be very different in each frame.
[0054] [0054] FIG. 7 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 700, a base station determines a series of licensed CCs monitored by the UE. In block 701, the base station determines an average number of unlicensed CCs monitored by the UE that have a clear CCA over a predetermined number of frames, M. On average over a predetermined number of frames, there may be M <= Nite- unlicensea Carriers with CCA clearance. LTE / LTE-A with and without unlicensed spectrum may also have different target termination than HARQ. An eNB, assuming that there are Nie 2 O carriers configured for the EU, would then determine in block 702, instead of using Neeiis ”= Note-Unlicensea + Note to determine the total number of CCs configured for the soft buffer partition, the total CCs configured based on the average number of unlicensed CCs released, M, and the number of LTE CCs, Nite. In block 703, the base station would partition the soft buffer using the number of CCs configured based on CCA release statistics.
[0055] [0055] It should be noted that, when determining the total number of CCs configured for partition, one or more licensed CCs can only be used for control signaling without data transmission. In such cases, there would be no need to partition the soft buffer into one or more licensed CCs being used for control signaling. Therefore, the base station cannot include the licensed CCs of the control transmission in the soft buffer management procedures.
[0056] [0056] It should be noted that replacing Neeiss with Mt + Nir can result in extra handling, if the actual number of unlicensed CCs that release the CCA check on a given frame exceeds the average number used for partition. It should also be noted that the average value representing the number of unlicensed CCs released, M, can be configured by the server cell. Equally, a scale factor of e € (0, 1) can also be used in such a way that * Nrre-unticensea + Noyre = M + Nurg, The various aspects of the present invention are not limited to any specific methods for the establishment of the modified number of CCs used for partition.
[0057] [0057] Several additional aspects of the present invention can use virtual cell-based soft buffer management to reflect a more accurate number of CCs configured for partition. A UE can be configured with N cells for monitoring the CCA, and M <= N cells for carrier aggregation. The virtual cell is defined as the unlicensed CCs that have clear CCAs from the M cells configured for carrier aggregation. These M cells can be any of the N cells configured, with the M cells being among the cells with CCA released. The various alternative aspects can perform the soft buffer partition based on M CCs (instead of the total N CCs configured for CCA monitoring).
[0058] [0058] FIG. 8 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 800, the base station determines a number of unlicensed CCs configured for CCA monitoring by the UE. Since transmission through unlicensed CCs is not guaranteed, many unlicensed CCs can be configured for CCA monitoring by a UF to increase the likelihood of achieving greater transmission capacity.
[0059] [0059] In block 801, the base station determines the number of unlicensed CCs that are configured for carrier aggregation by the UE. The number of unlicensed CCs configured for carrier aggregation in the UE can be up to the number configured for CCA monitoring. In block 802, the base station detects clear CCA states for any of the configured CCs up to the number configured for carrier aggregation. These released unlicensed CCs can be any of the total unlicensed CCs configured for CCA monitoring. In block 803, the base station partitions the soft buffer based on the number of unlicensed CcCs configured for carrier aggregation for at least the virtual cells with released CCAs.
[0060] [0060] Since transmissions are guaranteed through licensed CCs, it may be preferable to prioritize the use of soft buffer in favor of these licensed CCs. FIG. 9 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 900, the base station determines a number of licensed CCs monitored by the UE. In block 901, the base station determines the number of unlicensed CccCs monitored by the UE. In block 902, the base station can prioritize the soft buffer partition for the licensed CCs. The prioritization of licensed CCs over unlicensed CCs can be achieved by manipulating the estimated released number of unlicensed CCs, where
[0061] [0061] As the total number of configured CCs used for the soft buffer partition includes both licensed and unlicensed CCs, various aspects of the present invention may provide for either joint or separate partition or soft buffer management. The examples described above assumed joint soft buffer management. However, several aspects of the present invention allow the base station to separately partition the soft buffer for licensed CCs and unlicensed CCs. FIG. is a functional block diagram that illustrates examples of blocks executed to implement an aspect of the present invention. In blocks 1000 and 1001, the base station determines the number of licensed and unlicensed CCs monitored by the UE, respectively. In block 1002, the base station can separately partition the soft buffer for licensed and unlicensed CCs, according to the aspects described here.
[0062] [0062] It should be noted that, in additional aspects, the separate partition of block 1002 can also be used and can be combined with distinct definitions of UE categories for licensed and unlicensed CCs. With reference to Table l1, a new set of UE categories can be defined for CCs not licensed for the UE. These new categories from EU to unlicensed CC may include separate bit quantities for the particular category.
[0063] [0063] In addition, it should be noted that the base station can determine the execution of separate soft buffer management, such as through block 1002, based on current network operations. For example, soft buffer management can be selected for carrier aggregation network operations, while separate soft buffer management can be selected for multi-stream or dual connectivity operations, when multiple base stations have non-ideal backhaul communications between itself.
[0064] [0064] Furthermore, it should be noted that the determination of M can be assisted by UE. The UE can report some preferred M's based on its own needs / requirements and / or observed channel / interference / loading conditions.
[0065] [0065] Furthermore, it should be noted that The Munmit of Equations (1) and (2) for unlicensed CCs may be different from Muimit for licensed CCs. For example, Miuimit for LTE can be 8, while M: uinir for LTE / LTE-A with unlicensed spectrum can be 16. It should be noted that Miinit for any licensed or unlicensed CCs can be selected as different constants 8 or 16 in alternative aspects of the present invention.
[0066] [0066] Several aspects of the present invention are further addressed to the soft buffer partition through different HARQ processes. To simplify, the soft buffer partition through different HARQ processes within a given CC is still based on the concept of
[0067] [0067] In various aspects and operations of the soft buffer management procedures described here, a scenario may arise when the number of CCs used to partition the soft buffer, which are based on the CCA release statistical data, may not match the actual number of CCs or HARQ processes scheduled. This incompatible or underbooking partition comes from the number of CCs used for partition being less than the number of programmed CCs or the number of HARQ processes used to partition the CC being less than the number of HARQ processes programmed at the CC.
[0068] [0068] In order to solve the problems that arise with underbooking, several aspects of the present invention propose possible rules to solve underbooking through dependence on CC or dependence on HARQ processes. FIG. 11 is a functional block diagram illustrating examples of blocks executed to implement an aspect of the present invention. In block 1100, the soft buffer is partitioned using one of the methods described here, based on the CCA release information. At block 1101, the base station detects an incompatible partition, either because the number of CCs used for the partition does not match the actual number of programmed CCs or the number of HARQ processes used for partition does not match the actual number of HARQ processes programmed at the CC .
[0069] [0069] In a first aspect of the present invention, in block 1102a, the base station prioritizes access to the partitioned soft buffer using DC dependency rules. For example, licensed CCs, if any, are given higher priority over unlicensed CCs. In addition, between groups of licensed or unlicensed CCs, groups are also prioritized according to the cc cell index, where a lower cell index (configured via RRC messages) receives a higher priority.
[0070] [0070] It should be noted that the implementation and / or standardization can be used to minimize or reduce the occurrence of soft buffer rearrangement through CCs. Currently in LTE, soft buffer rearrangement due to incompatible partition or underbooking is usually performed within each CC. An example to reduce or minimize this rearrangement through CC is to guarantee the soft buffer a minimum number of HARQ processes for each configured CC.
[0071] [0071] In a second aspect of the present invention, in block 1102b, the base station gives priority access to the partitioned soft buffer using HARQ process dependency rules. For example, a higher priority can be given to an HARQ process that already has ACK / NAK feedback transmitted to the server cell. These HARQ processes would have already received a NAK from the UE, so that it would know which retransmissions would be planned. This is compared to an HARQ process that has not yet received transmitted ACK / NAK feedback (for example, due to failed UL CCA, or the like). A different priority can be given to HARQ processes based on the number of retransmissions and / or the amount of time that has elapsed since the first transmission. Because older pending HARQ processes may be pending for a long time, HARQ processes with the highest number of retransmissions Or the longest period since the first transmission may include stale data packets that would not be as critical as newer HARQ processes . As such, additional aspects may consider assigning higher priority to newly programmed HARQ processes. Higher priority can also be given to an HARQ process that has a MIMO transmission. Therefore, for a CC with MIMO mode, some subframes may have transmissions of position 1, while other subframes may have transmissions with a position greater than 1.
[0072] [0072] In a third aspect of the present invention, in block 1102c, the base station can also modify its own behavior in order to deal with soft buffer management. For example, eNBs for unlicensed CCs can program accordingly based on soft buffer management in the EU and release of the CCA in a frame. If the number of CCs / HARQ processes programmed is greater than the nominal value of CCS / HARQ processes programmed for soft buffer partition, several aspects of the present invention consider different HARQ target terminations for these CCS / HARQ processes.
[0073] [0073] It should be noted that, while the examples described above provide discussion between LTE / LTE-A operations with and without the unlicensed spectrum, alternative aspects of the invention may also be applicable to scenarios in which there are only unlicensed carriers configured for a UE or where there are combinations of other types of RATs, for example, LTE plus advanced WiFi, where HARQ is supported. The various aspects of the present invention are compatible with each of these different networks and RATs.
[0074] [0074] 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 referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0075] [0075] The blocks and functional modules in Figs. 5-11 may include processors, electronic devices, hardware devices, electronic components, logic circuits, memories, software codes, firmware codes, etc., or any combination thereof.
[0076] [0076] Experts would also appreciate that the various logic blocks, modules, circuits and illustrative algorithm steps described in connection with the description here can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, several illustrative components, blocks, modules, circuits and steps have been described above, generally in terms of their functionality. Whether this functionality is implemented as hardware or software depends on the application and specific design limitations imposed on the system in general. Those skilled in the art can implement the described functionality in different ways for each particular application, but such execution decisions should not be construed as departing from the scope of the present invention. Those skilled in the art will also readily recognize that the order or combination of components, methods or interactions that are described herein are merely examples and that the components, methods, or interactions of the various aspects of the present invention can be combined or performed in ways other than those illustrated. and described here.
[0077] [0077] The various logic blocks, modules and illustrative circuits described in connection with the description here can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASTIC), a field programmable gate arrangement (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor can be a microprocessor, but, alternatively, the processor can be any conventional 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 type of configuration.
[0078] [0078] The steps of a process or algorithm described in connection with the description 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, EPROM memory, 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 can be an integral 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.
[0079] [0079] In one or more exemplary designs, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, functions can be stored or transmitted as one or more instructions or code in a computer-readable medium. Computer reading media includes computer storage and communication media, including any medium that facilitates the transfer of a computer program from one place to another. Computer-readable storage media can be any available medium that can be accessed by a computer for general or special purposes. By way of example, and not as a limitation, such computer reading media 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 can be used to transport or store a desired program code medium in the form of instructions or data structures and which can be accessed by a general purpose or special purpose computer, or a general purpose or special purpose processor. In addition, a link can be properly called a computer reading medium. For example, if the software is transmitted from a website, server or other remote source over a coaxial cable, fiber optic cable, twisted pair, or digital subscriber line
[0080] [0080] As used herein, including in the claims, the term “and / or”, when used in a list of two or more items, means that any of the items mentioned can be used alone, or any combination of two or more of the items mentioned can be used. For example, if a composition is described as containing components A, B and / or C, the composition can contain only A; only B; only C; A and B in combination; A and C in combination; B and C in combination; or A, B and C in combination. In addition, as used herein, including in the claims, “or”, as used in a list of items preceded by “at least one of” indicates a list without connection, such that, for example, a list of “ at least one of A, B or C ”means A or B or C or AB or AC or BC or ABC (ie A and BeC).
[0081] [0081] The foregoing description of the invention is provided to allow any person skilled in the art to make or use the invention. Various modifications to the invention will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other variations without departing from the spirit or scope of the invention. Thus, the description is not intended to be limited to the examples and drawings described here, but must be in accordance with the broadest scope consistent with the innovative principles and characteristics described here.

权利要求:
Claims (30)
[1]
1. Wireless communication method, which comprises: determining a number of component carriers (CCs) configured for user equipment (UE); and to identify, within the number of CCs, a first set of component carriers subject to the free channel evaluation (CCA) operation; and determining for partitioning a soft buffer based, at least in part, on the number of CCs and the first set of CCs subject to CCA operation.
[2]
2. Method according to claim 1, wherein the first set of CCs subject to the CCA operation is in an unlicensed spectrum.
[3]
3. Method according to claim 1, wherein the first set of CCs subject to CCA operations is in a shared licensed spectrum.
[4]
4, The method of claim 1, wherein determining the soft buffer partition based on the first set of CCs subject to the CCA operation includes staggering the first set of CCs subject to the CCA operation by a scaling factor.
[5]
5. Method according to claim 1, which further includes determining a value for the first set of CCs subject to the CCA operation for soft buffer partition, where the value is less than the number of CCs in the first set of subject CCs to the CCA operation.
[6]
6. Method according to claim 1, which further includes determining, within the first set of CCs subject to CCA operation, a number of CCs with CCA release for soft buffer partition.
[7]
7. The method of claim 1, wherein the number of CCs in the first set of CCs subject to the CCA operation is equal to the number of CCs configured for the UE.
[8]
8. Method according to claim 1, which further includes determining a second set of CCs that includes one or more CCs exempt from CCA operation, in which the soft buffer is one of the following: partitioned separately or together for the first set of CCs and the second set of CCs.
[9]
A method according to claim 8, wherein the soft buffer pooling is prioritized to one or more CCs in the second pool of CCs.
[10]
A method according to claim 8, wherein a bit size of the soft buffer is determined separately for the first set of CCs and for the second set of CCs.
[11]
11. Method according to claim 8, which further includes: selecting one among partitions separately or together from the soft buffer based on network operations.
[12]
12. Method according to claim 11, which further includes: selecting joint partition of the soft buffer when the network operation includes carrier aggregation; and selecting a separate partition from the soft buffer when the network operation includes two or more base stations having non-ideal backhaul communication, in which the two or more base stations are associated with one or more of the number of CCs configured for the UE.
[13]
13. Method according to claim 1, wherein the partition of the soft buffer is still based on at least one of an RRC signaling message, if the UE operates using multiple inputs and multiple outputs (MIMO) signaling, a number maximum number of hybrid automatic repeat request (HARQ) processes available to the UE based on a base station uplink / downlink configuration, or a maximum number of allowed HARQ processes in determining the size.
[14]
14. The method of claim 13, wherein the maximum HARQ process limit, Miunmit, includes a first Selected Miinir for the first set of CCs and a second Selected Miuinir for the second set of CCs.
[15]
15. Apparatus configured for wireless communication, which comprises: means for determining a number of component carriers (CCs) configured for user equipment (UE); and means to identify, within the number of CCs, a first set of component carriers subject to the free channel assessment (CCA) operation; and means for determining the partition of a soft buffer based, at least in part, on the number of CCs and the first set of CCs subject to the CCA operation.
[16]
An apparatus according to claim 15, wherein the first set of CCs subject to the CCA operation is in an unlicensed spectrum.
[17]
17. Apparatus according to claim 15, wherein the first set of CCs subject to the CCA operation is in a shared licensed spectrum.
[18]
An apparatus according to claim 15, wherein the means for determining the partition of the soft buffer based on the first set of CCs subject to the CCA operation includes means for scaling the first set of CCs subject to the CCA operation by a factor of staggering.
[19]
An apparatus according to claim 15, which further includes means for determining a value for the first set of CCs subject to the CCA operation to partition the soft buffer, wherein the value is less than the number of CCs in the first set of CCs subject to CCA operation.
[20]
An apparatus according to claim 15, which further includes means for determining, within the first set of CCs subject to CCA operation, a number of CCs with CCA release to compartmentalize the soft plug.
[21]
21. The apparatus of claim 15, wherein the number of CCs in the first set of CCs subject to the CCA operation is equal to the number of CCs configured for the UE.
[22]
22. Apparatus according to claim 15, further including means for determining a second set of CCs that includes one or more CCs exempt from CCA operation, wherein the soft buffer is one of: partitioned separately or together for the first set of CCs and the second set of CCs.
[23]
23. Apparatus according to claim 21, wherein the joint partition of the soft buffer is prioritized to one or more CCs in the second set of CCs.
[24]
An apparatus according to claim 21, wherein the bit size of the soft buffer is determined separately for the first set of CCs and for the second set of CCs.
[25]
An apparatus according to claim 21, which further includes: means for selecting a partition separately or together from the soft buffer based on network operations.
[26]
26. An apparatus according to claim 25, which further includes: means for selecting the soft buffer partition together when the network operation includes carrier aggregation; and means for selecting separate partition from the soft buffer when the network operation includes two or more base stations having non-ideal backhauk communication, where the two or more base stations are associated with one or more of the number of CCs configured for the UE .
[27]
27. Apparatus according to claim 15, in which the partition of the soft buffer is still based on at least one of an RRC signaling message, if the UE operates using multiple input and multiple output (MIMO) signaling, a number maximum number of hybrid automatic repeat request (HARQ) processes available to the UE based on a base station uplink / downlink configuration, or a maximum number of allowed HARQ processes in determining the size.
[28]
28. Apparatus according to claim 27, wherein the maximum HARQ process limit, Miunmit, includes a first mini: Selected for the first set of CCs and a second Miuinir Selected for the second set of cCcs.
[29]
29. Non-transitory computer reading medium having program code registered therein, the program code comprising: program code to take a computer to determine a number of component carriers (CCs) configured for user equipment (UE); and program code to take the computer to identify, within the number of CCs, a first set of component carriers subject to the free channel evaluation (CCA) operation; and program code to get the computer to determine a soft buffer partition based, at least in part, on the number of CCs and the first set of CCs subject to CCA operation.
[30]
30. Non-transitory computer reading medium according to claim 29, wherein the first set of CCs subject to the CCA operation is in one of: an unlicensed spectrum or a shared licensed spectrum.
27 TOM e 3 / É -— / ra "2 / Í * a / í NR Ê /; Sd É / 1 5 à se SE Rm A = O = Yy HA o io 7 Í Z Z 'h ia é |, io ns Wi A NT] i E; FD | SÁ | = .—. 1 [1 i '! Fa! ”! Ss | O mm! 1 7 you i / THIRD i / x SA / ns' / 1 v 1 / 1 v 1 1 E 'E 1h ——! PE | = Y / F = ") | À Á QN | TJ Y pa e C "E E Rn A! - =. / = / VA Õ N!: = E v 1 y mA TN A = Ny '! À = N / Em Fm) V 1
D, 'Dad W / NV' / 1 AOL | | tt '| X Vv7 / 1 | nn + | 1 ”1 SD 8, NS Y '= N / 1'! “EA 'n I v 7) Not EA' Fe.! TV '"x 1 REA A | NR Wo' Í% 1 n 1 vi% '/ o 1 À o to =! Na Bão / 8 I Ss Pod os ai DA -! E Poa D v PA io” so iLAÁ | [ 2 is 1 i 1 is À W 1 Cs Í os 1 6 A = "(e 1 FE ==" PoE! 2 v! S
N SÁ É / s XN / s v É ã x WÁ 8 Nx is 2 <o 8 No S g 2 = & e
It's wo y
T
O
E 4 a TA E / 17is 1 / E o / / QN / AR / / e is <r s8 so e 2 <
CN EO A SN e—— O S nn ms = Ss E = No
VS SO. Sn mM% qT
ONE * fa 3 ec
S É

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引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US7554998B2|2005-01-11|2009-06-30|Telefonaktiebolaget Lm Ericsson |Interference-based routing in a wireless mesh network|

US20070286122A1|2006-06-12|2007-12-13|Motorola, Inc.|Clear channel assessment threshold adaptation in a wireless network|

US8774209B2|2009-12-02|2014-07-08|Qualcomm Incorporated|Apparatus and method for spectrum sharing using listen-before-talk with quiet periods|

KR20110094760A|2010-02-17|2011-08-24|주식회사 팬택|Method and apparatus of discontinuous reception in wireless communication system using multiple component carrier, method and apparatus for transmitting activation/deactivation message therefore|

KR20120001535A|2010-06-29|2012-01-04|주식회사 팬택|Apparatus and method for reporting power headroom in multiple component carrier system|

KR101699023B1|2010-07-14|2017-01-23|주식회사 팬택|Apparatus and method of performing handover in multiple component carrier system|

CN102378325B|2010-08-13|2016-03-30|索尼公司|The up link of the secondary community of terminal is activated and the method for deexcitation and device|

WO2012040900A1|2010-09-28|2012-04-05|富士通株式会社|Method, ue and base station for sending or receiving feedback information of downlink data|

US8724742B2|2010-10-06|2014-05-13|Motorola Mobility Llc|Method and apparatus for soft buffer management for carrier aggregation|

JP2014502080A|2010-11-05|2014-01-23|ブラックベリーリミテッド|HARQ soft bit buffer partitioning for carrier aggregation|

US8797957B2|2010-11-12|2014-08-05|Telefonaktiebolaget Lm Ericsson |Terminal, network node, system and methods for soft buffer handling in carrier aggregation|

CA2944691C|2010-12-22|2018-08-14|Fujitsu Limited|Method for resource allocation, method for channel state information transmission, base station and user equipment|

US8867463B2|2010-12-28|2014-10-21|Telefonaktiebolaget L M Ericsson |Weighted soft buffer handling in radiocommunication systems|

MX2013011811A|2011-04-13|2014-01-23|Ericsson Telefon Ab L M|Method and device for soft buffer management based on user equipment categories in a communications network.|

US8891466B2|2011-04-29|2014-11-18|Acer Incorporated|Method of handling soft buffer for carrier aggregation and related communication device|

US20130121216A1|2011-11-11|2013-05-16|Qualcomm Incorporated|Method and apparatus for soft buffer management for harq operation|

GB2498932B|2012-01-30|2013-12-18|Renesas Mobile Corp|Method, apparatus and computer program for distributed carrier aggregation|

GB2498988B|2012-02-02|2014-08-06|Broadcom Corp|Communications apparatus and methods|

US9705644B2|2012-07-05|2017-07-11|Lg Electronics Inc.|Method for operating buffer for device-to-device communication in wireless communication system, and apparatus for same|

US9204451B2|2013-03-06|2015-12-01|Broadcom Corporation|Clear channel assessment levels within wireless communications|CN104683076B|2013-12-02|2018-03-23|中国移动通信集团公司|Response message feedback method, response message method of reseptance and relevant apparatus|

CN104170306B|2014-01-29|2017-06-20|华为技术有限公司|A kind of data transmission method, equipment and system|

US9930535B2|2014-08-05|2018-03-27|Cisco Technology, Inc.|Joint scheduler for integrated Wi-Fi and LTE-U wireless access point|

US9577793B2|2014-09-23|2017-02-21|Intel Corporation|Soft buffer management|

WO2016053057A1|2014-10-04|2016-04-07|엘지전자 주식회사|Method for managing soft buffer in wireless communication system and apparatus for performing same|

EP3038285A3|2014-12-22|2016-10-26|Industrial Technology Research Institute|Method of handling communication operation in communication system and related apparatus|

WO2016119207A1|2015-01-30|2016-08-04|Telefonaktiebolaget Lm Ericsson |Harq/csi ack feedback method over unlicensed carriers|

US20160227540A1|2015-01-30|2016-08-04|Qualcomm Incorporated|Soft buffer management for enhanced carrier aggregation|

US10862630B2|2015-02-13|2020-12-08|Samsung Electronics Co., Ltd|Method and system for contiguous HARQ memory management with memory splitting|

CN107852299B|2015-07-10|2020-11-03|Lg电子株式会社|Method and apparatus for transmitting data burst in wireless access system supporting unlicensed band and carrier aggregation|

CN106413096B|2015-07-31|2020-07-10|中兴通讯股份有限公司|Uplink carrier selection method, network side network element and user equipment|

US10368366B2|2015-09-16|2019-07-30|Nokia Solutions And Networks Oy|Method and apparatus for implementing uplink scheduling in an unlicensed spectrum|

WO2017075825A1|2015-11-06|2017-05-11|广东欧珀移动通信有限公司|Method for data storage, terminal device and base station|

CN106130701B|2016-07-14|2019-08-02|宇龙计算机通信科技有限公司|HARQ process transmission method and device, base station and terminal in unauthorized frequency range|

CN108023666B|2016-11-03|2020-07-28|华为技术有限公司|Method and apparatus for wireless communication|

KR20180049742A|2016-11-03|2018-05-11|삼성전자주식회사|Method and Apparatus for Communication using Licensed Band and Unlicensed Band|

US10412603B2|2017-02-28|2019-09-10|At&T Mobility Ii Llc|Hypervisor for access points and edge nodes|

US10230502B2|2017-03-24|2019-03-12|Qualcomm Incorporated|Hybrid automatic repeat request buffer configuration|

CN110679106A|2017-04-01|2020-01-10|瑞典爱立信有限公司|Method performed by a wireless device for processing a corrected transport block|

US11122640B2|2017-07-28|2021-09-14|Lg Electronics Inc.|Method and apparatus for handling soft buffer size with dual connectivity in wireless communication system|

US10757042B2|2017-08-11|2020-08-25|Qualcomm Incorporated|Buffer management for multiple radio access technologies|

KR20190125071A|2018-04-27|2019-11-06|한국전자통신연구원|Method and apparatus for transmission and reception based on hybrid automatic repeat request in communication system|

CN109617660B|2018-12-19|2021-08-03|惠州Tcl移动通信有限公司|Method and device for setting carrier aggregation frequency band, storage medium and mobile terminal|

法律状态:
2020-08-18| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04L 5/00 , H04L 1/18 , H04L 27/00 Ipc: H04L 1/18 (2006.01), H04L 5/00 (2006.01), H04L 27/ |

2020-08-25| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-11-03| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

申请号 | 申请日 | 专利标题

US201361899666P| true| 2013-11-04|2013-11-04|

US61/899,666|2013-11-04|

US14/502,848|2014-09-30|

US14/502,848|US9674845B2|2013-11-04|2014-09-30|Soft buffer management|

PCT/US2014/058604|WO2015065640A1|2013-11-04|2014-10-01|Soft buffer management|

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