METHODS AND APPARATUS FOR OPTIMIZING PAGING MECHANISMS USING DEVICE CONTEXT INFORMATION

专利摘要:
methods and apparatus for optimizing paging mechanisms using device context information. The invention relates to methods and apparatus for enabling a wireless network to optimize a paging channel operation, based on mobile device context information. in one embodiment, the wireless network is a cellular network (eg, lte-advanced), and both base stations and cellular user devices dynamically exchange and maintain a paging agreement. the paging agreement limits the paging channel operation, thereby minimizing unnecessary scanning and use of irrelevant radio resources. such paging mechanisms are limited to the air interface between the base station and the mobile device and are compatible with legacy devices and entities. networks with appropriately enabled user devices can improve your resource utilization. base stations can advantageously claim cellular resources freed up to support other services.
公开号:BR112012011461B1
申请号:R112012011461-1
申请日:2010-10-27
公开日:2021-08-24
发明作者:Maik Bienas；Hyung-Nam Choi
申请人:Apple Inc；
IPC主号:

专利说明:

PRIORITY AND RELATED REQUESTS
This application claims priority from PCT Application Number PCT/US2010/054299 filed October 27, 2010 of the same title, which claims priority from US Patent Application Serial Number 12/610,145 co-owned and co-pending filed October 30, 2009 of the same title, which relates to co-owned and co-pending US Patent Application Serial Number 12/409,398 filed March 23, 2009 and entitled "Methods and Apparatus for Optimizing Dynamic Paging Mechanisms and Publishing" , each of the above incorporated herein by reference in their entirety. FUNDAMENTALS OF THE INVENTION FIELD OF THE INVENTION
The present invention relates generally to the field of wireless communication and data networks. More specifically, in an exemplary aspect, the present invention is directed to methods and apparatus for optimizing paging transmissions in a wireless communication and data network based on mobile device context information. DESCRIPTION OF RELATED TECHNOLOGY
The Universal Mobile Telecommunications System (UMTS) is an exemplary implementation of "third generation" or "3G" cell phone technology. The UMTS standard is specified by a collaborating body referred to as the 3rd Generation Partnership Project (3GPP). 3GPP adopted UMTS as a 3G cellular radio system aimed at, among others, European markets, in response to requirements put forward by the International Telecommunications Union (ITU). The ITU standardizes and regulates international radio and telecommunications. Enhancements to UMTS will support a future evolution to fourth-generation (4G) technology.
A topic of current interest is the further development of UMTS towards a mobile radio communication system optimized for packet data transmission through improved system capacity and spectral efficiency. In the context of 3GPP, activities in this regard are summarized under the general term "LTE" (for Long Term Evolution). The objective is, among others, to increase the maximum net transmission rate significantly in the future, namely to speeds in the order of 300 Mbps in the downlink transmission direction and 75 Mbps in the uplink transmission direction.
Additional 3GPP advancements are being investigated within LTE towards an Advanced IMT radio interface technology, referred to as "Advanced LTE" or "LTE-A". Details regarding the scope and objectives of the Advanced LTE study are described in, among others, RP-080137 entitled "Further advancements for E-UTRA (LTE-Advanced)" to NTT DoCoMo et al., the content of which is incorporated herein by reference in its entirety. Advanced IMT activities have started and are guided by the ITU-R (International Telecommunications Union - Radio Communication Sector). Key features to be supported by candidate IMT-Advanced systems have been determined by ITU-R and include among others: (1) high-quality mobile services; (2) worldwide roaming capability; and (3) peak data rates of one hundred (100 Mbps for high mobility environments, and one (1) Gbps for low mobility environments.
Current discussions on 3GPP regarding LTE-A are focused on technologies to further develop LTE in terms of spectral efficiency, cell edge throughput, coverage and latency based on the requirements in 3GPP TS 36.913: "Requirements for further advancements for E-UTRA (LTE-Advanced)", the contents of which are incorporated herein by reference in their entirety. Candidate technologies include (1) Multihop Transfer; (2) downlink network Multiple Input Multiple Output (MIMO) antenna technologies; (3) support for bandwidths greater than twenty (20) MHz by spectrum aggregation; (4) flexible spectrum usage/spectrum sharing; and (5) intercell interference management. Backward compatibility with legacy LTE networks is also an important requirement for future LTE-A networks, ie, an LTE-A network also supports an LTE User Equipment (UE), and an LTE UE -A can operate on an LTE network. PAGING MECHANISMS OF THE PREVIOUS TECHNIQUE
Paging mechanisms are used in many prior art cellular mobile radio communication systems such as UMTS and LTE. Paging mechanisms allow a mobile device to minimize power consumption by operating in a reduced or "idle" state while unused. Once a UE receives a paging notification, it "wakes up" to respond to the notification.
Various proposals for paging mechanisms within wireless systems are evidenced in the prior art. For example, within most cellular networks, the network operator maintains an approximate location or "Tracking Area" (TA) for idle mobile devices. Each TA consists of several cells. When a mobile device is paged, all designated cells within the TA transmit the paging notification. Presumably, as long as the mobile device has not moved out of the TA, it should receive the paging notification. Unfortunately, the larger tracking areas that provide better paging coverage also consume proportionately more radio spectrum and resources; thus prior art solutions negotiate the coverage area for resource utilization.
Incipient LTE-A networks flexibly fragment and/or aggregate spectrum bandwidths freely. Regrettably, however, such spectrum flexibility considerably complicates paging; as a UE moves through a tracking area, bandwidth utilization can vary widely. For example, the UE is generally not aware of the resource configuration used for paging messages. Similarly, the network does not know which resources the UE is monitoring for paging channel reception. Thus, the preexisting networks transmit the paging channel messages over the entire cell bandwidth for each cell in the TA, until contact with the mobile device is re-established.
Consequently, adequate paging mechanisms are needed to specifically address networks that have fragmented multi-band operational capabilities, and flexible resources. Such an improved solution should ideally operate uninterruptedly and without adversely impacting the user experience over legacy radio sets, and that of other wireless devices (ie, remaining backward compatible).
Improved apparatus and methods for paging mechanisms that specifically address the complexities of the new LTE-Advanced architecture are also needed. The LTE-Advanced system architecture combines a fragmented multi-band capability, OFDM access, and mixed populations of preexisting and new UEs. The preexisting mechanisms for paging within this architecture are less than optimal. SUMMARY OF THE INVENTION
The present invention satisfies the aforementioned needs by providing an improved apparatus and methods for paging over a wireless network. In one aspect of the invention, a method of paging a base station mobile device on a wireless network is described. In one embodiment, paging is based on a selected resource used by the mobile device to receive a paging channel, and the method includes: receiving information regarding a resource used by the mobile device when the mobile device selects that resource; and sending the paging information to the base station mobile device using only one paging channel of the resource used. If no resource used information exists, no paging information is sent to the mobile device.
In one variant, the base station includes an LTE-compliant eNodeB, and the mobile device is an LTE-compliant UE, and the selected resource includes at least one component carrier (CC).
In another variant, the base station is an LTE-A (Advanced Long Term Evolution) compliant eNodeB which is configured to support a maximum bandwidth of 20 MHz for the at least one component carrier in order to maintain backward compatibility with a preexisting LTE device. The selected resource used by the mobile device to receive the paging channel is used in an idle (not connected) mode.
In a second aspect of the invention, a base station apparatus is described. In one embodiment, the apparatus includes: a digital processor; a radio interface in data communication with the processor; and a storage device in data communication with the processor, the storage device comprising computer executable instructions which, when executed by the digital processor: (i) responsive to receiving an update message from a mobile device through the radio interface: negotiate a paging agreement with the mobile device; and start a timing function; (ii) responsive and receive an indication through the radio interface, reset the timing function; and (iii) responsive to the expiring timing function to delete the paging agreement.
In one variant, the apparatus further includes a broadband interface in data communication with the processor; and where responsive to receiving a web page addressed to the mobile device through the broadband interface. The device also: determines the existence of the paging agreement; if the paging agreement does not exist, ignore the web page; and if the paging agreement exists transmits a paging channel message to the mobile device based on the paging agreement.
In another variant, the indication includes a substantially periodic heartbeat message, and the timing function is a "watchdog" timer.
In yet another variant, the base station apparatus and the mobile device are each LTE-A (Long Term-Advanced Evolution) conformance.
In a third aspect of the invention, a mobile communication apparatus is described. In one embodiment, the apparatus includes: a digital processor; a wireless interface for data communication with the processor; and a storage device in data communication with the processor, the storage device comprising computer executable instructions. When executed by the digital processor, the instructions: cause the transmission of an update message, the update message configured to cause a receiver thereof to generate a paging agreement, and invoke a timing function that has a first schedule; and causes transmission of a second message having a second schedule different from the first schedule, the second message being configured to cause the extension of the paging agreement.
In one variant, the second message is further configured to cause the receiving base station to reset the timing function.
In another variant, the paging agreement includes a specification of at least: (i) a component carrier to be used for paging the mobile device; and (ü) at least one timing parameter to be used for a periodic transmission of the second message.
In a fourth aspect of the invention, a method for efficiently transmitting paging messages is described. In one embodiment, messages are transmitted to a mobile device from a plurality of base stations of a wireless network, and the method includes: within a subset of the base stations, generating a paging agreement between at least one base station and the mobile device, to at least one base station forming part of the subset; storing the context information on the at least one base station; receiving data from the mobile device at the subset of the plurality of base stations; and transmitting a paging message only to the at least one base station that has the paging agreement generated.
In one variant, the context information includes a description of at least one paging feature available to the mobile device. In another variant, the mobile device is operating in an idle mode, not connected.
In a fifth aspect of the invention, a method for conducting paging operations in a multi-cell network is described. In one embodiment, the method includes: designating a tracking area that has a plurality of base stations associated with it; associate a mobile device with the tracking area; and specifying, using at least the mobile device, only a subset of the plurality of base stations to perform the paging of the mobile device.
In one variant, the network includes a core portion in operative communication with the plurality of base stations, the core portion not being evaluated from the base station subset specification. The mobile device and base stations are compliant with Long-Term-Advanced Evolution (LTE-A), and the core portion is compliant with LTE, not compliant with Long-Term-Advanced Evolution (LTE-A) .
In a sixth aspect of the invention, a computer readable apparatus is described. In one embodiment, the apparatus includes a storage medium that has at least one computer program, the at least one program being configured to allow energy-efficient paging operations for a mobile device within a cellular network.
In a seventh aspect of the invention, a wireless network is described. In one embodiment, the wireless network is an LTE-compliant cellular network, with portions of the network (ie, base stations and UEs) being LTE-A compliant so that the benefits of LTE-A can be accomplished, however with an energy- and resource-efficient paging mode operation.
Other features and advantages of the present invention will be readily recognized by persons skilled in the art with reference to the accompanying drawings and the detailed description of exemplary embodiments as provided below. BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is a graph of time and frequency of a typical prior art Time Division Multiple Access (TDMA) implementation.
Fig. 1B is a graph of time and frequency of a typical prior art Frequency Division Multiple Access (FDMA) implementation.
Figure 1C is a graph of time and frequency of a typical prior art Code Division Multiple Access (CDMA) implementation.
Figure 1D is a time and frequency graph of an Orthogonal Frequency Division Multiple Access (OFDMA) implementation used in combination with TDMA.
Figure 2 is a graphical representation of various prior art duplex methods including full duplex FDD, half duplex FDD and TDD.
Figure 3 is a graphical representation of an exemplary frame structure type for a prior art LTE FDD system.
Fig. 4 is a graphical representation of a prior art LTE two-phase paging engine timing.
Figure 5 is a graphical representation of the timing of a prior art LTE-A two-phase paging engine.
Figure 6 is a graphical illustration of a prior art cellular system transmitting paging notifications to a mobile device.
Figure 7 is a graphical illustration of an exemplary cellular system transmitting paging notifications to a mobile device, in accordance with an embodiment of the invention.
Figure 8 is a logical flowchart of an exemplary embodiment of the generalized method for establishing and maintaining a paging agreement in accordance with the invention.
Figure 9 is a ladder diagram further describing the methods for establishing a paging agreement between multiple parties in a cellular radio system, in accordance with the generalized methods of Figure 8.
Figure 10 is a logical flowchart of an exemplary embodiment of the generalized method for efficiently using context information to transmit paging channel messages in accordance with the invention.
Figure 11 is a ladder diagram further describing methods for paging a mobile device using context information, in accordance with the generalized methods of Figure 10.
Figure 12 is a functional block diagram illustrating an embodiment of a base station apparatus adapted to implement the methods of the present invention.
Figure 13 is a graphical representation of an embodiment of an update message format containing context information, in accordance with the principles of the present invention.
Figure 14 is a graphical representation of an embodiment of a confirmation message format that contains a paging agreement, in accordance with the principles of the present invention.
Figure 14A is a graphical representation of one embodiment of a paging agreement entry stored in an exemplary eNB, in accordance with the principles of the present invention.
Figure 15 is a functional block diagram illustrating an embodiment of a client device (e.g. UE) adapted to implement the methods of the present invention. DETAILED DESCRIPTION OF THE INVENTION
Reference will now be made to the drawings, in which like numbers refer to like parts throughout. OVERVIEW
In one aspect, the present invention describes methods and apparatus for modifying a paging channel operation within wireless communication systems based on context information. This feature allows, for example, base stations to significantly reduce the bandwidth used for paging operations. In one embodiment, a paging agreement is exchanged between a base station in a tracking area and a mobile device. The base station and the mobile device comply with the paging agreement for future paging channel transactions (e.g., appropriate component carriers, timing, etc.). Additional features are described to automatically ensure paging agreement validity.
Such methods and apparatus are specifically useful for solving paging capacity management within networks that have a fragmented multi-band operational capacity, and flexible resource allocation/utilization such as, among others, LTE-Advanced architectures.
In an implementation of the invention, the mobile device context information includes one or more mobile device identity, hardware version, standard refresh timer period, one or more suggested radio resources, base station reception information, etc. . Context information is evaluated by the base station to determine a paging agreement. In some embodiments, a mobile device can simultaneously maintain multiple paging agreements with multiple base stations.
In another aspect of the invention, methods and apparatus are described in which paging agreements are periodically renewed, either by the mobile device or by the base station. In some modalities, paging agreements that are not renewed are terminated. In alternative modalities, paging agreements that are not renewed trigger revitalization procedures to recover the original paging agreement. More generally, broader solutions to unexpected behavior of paging agreements are described. In some implementations, inconsistent paging behavior (with respect to the paging agreement) terminates the paging agreement. Similarly, inconsistent paging behavior can also trigger revitalization or recovery actions, such as attempts to retry paging message delivery. DETAILED DESCRIPTION OF EXEMPLARY MODALITIES
Exemplary embodiments of the present invention will now be described in detail. Although these modalities are primarily discussed in the context of a wireless UMTS network, and more specifically in a variant of fourth-generation ("4G") UMTS, LTE and LTE-A networks, it will be recognized by those skilled in the art that the The present invention is not so limited. In fact, the various aspects of the invention are useful in any wireless system (eg, cellular networks, wireless local area networks, ad hoc connections, etc.) that can benefit from the paging mechanisms described herein. Examples of such wireless systems include Wi-Fi®, WiMAX®, Bluetooth®, etc.
In the following discussion of exemplary embodiments of the invention, a cellular radio system includes a network of radio cells, each served by a transmitting station, known as a cell site or base station. The radio network provides a wireless communications service to a plurality of transceivers (in most cases mobile). The network of base stations working in collaboration allows for wireless service which is greater than the radio coverage provided by a single serving base station. The individual base stations are connected by another network (in many cases a wired network), which includes additional controllers for resource management and in some cases access to other network systems (such as the Internet) or MANs.
In LTE there are two (2) distinct types of base stations: eNodeB (eNB), and eNodeB Home (HNB). In previous cellular networks, the base station network was owned and/or controlled by a single network operator entity. 3GPP introduced a new network element known as "Domestic Node B" (HNB). A Home Base Station (or Home NodeB (HNB), or Home eNodeB (HeNB) in 3GPP terminology) is a base station optimized for use in residential, corporate, or similar environments (eg, private homes, public restaurants, small offices, companies, hospitals, etc., and with this the term "domestic" is not intended to be limited to residential applications). In the present context, the terms "Home Base Station", "Home NodeB" (for UMTS), "Home eNodeB" (for LTE) generally refer to a "femtoceH". In the present context, the terms base station, "NodeB", and "eNodeB" (for LTE) generally refer to a "macrocell". LONG-TERM EVOLUTION (LTE) ACCESS METHODS
The current LTE specification defines several flexible multiple access methods to improve transmission over the air interface to increase potential transmission rates. LTE specifies Orthogonal Frequency Division Multiple Access (OFDMA) in combination with Time Division Multiple Access (TDMA) for downlink access. This hybrid access technique subsequently also called OFDMA/TDMA, is a multi-carrier multiple access method in which a subscriber is provided with a defined number of sub-carriers in the frequency spectrum and a defined transmission time for the transmission purpose. of data. LTE further specifies SC-FDMA (Single Carrier Frequency Division Multiple Access) in combination with TDMA for uplink access. Furthermore, LTE supports full duplex FDD (frequency division duplexing), half duplex FDD and TDD (time division duplexing). Finally, LTE supports scalable bandwidth segments of one, comma four (1.4), three (3), five (5), ten (10), fifteen (15) and twenty (20) MHz.
In summary, Figures 1A-1D summarize the basic multiple access methods well understood in wireless transmission techniques, and used throughout this description. In these figures, it will be recognized that time increases in the direction of a time axis (t), and frequency increases in the direction of a frequency axis (F).
Figure 1A is a first time-frequency diagram illustrating a TDMA (time division multiple access) system. In TD-MA, each mobile radio terminal can use the entire frequency band provided for use by the mobile radio terminals. However, for each mobile radio device, only a predefined transmission time interval (TTI) is allocated in which the mobile radio device can send and receive useful data. During transmission time interval 102, only one mobile radio device is active in a radio cell.
Figure 1B is a second time-frequency diagram illustrating an FDMA (Frequency Division Multiple Access) system. In FDMA, each mobile radio device can freely use the time domain, but only a predefined (narrow) frequency band 104 within the entire frequency band is available to send and receive useful data. Only one mobile radio device is active in each narrow frequency band of the radio cell at any given time.
Figure 1C is a third time-frequency diagram illustrating a CDMA (code division multiple access) system. In CDMA (a subspecies of so-called "direct sequence" or DS systems), each mobile radio terminal can send and receive useful data for any period of time, and can utilize the entire available frequency band. In order to avoid interference between data sent by different senders, each mobile radio device is allocated a pseudo binary noise code pattern 106. The code patterns which are allocated to the different mobile radio terminals are ideally orthogonal, and data sent by a mobile radio terminal or to be received by the mobile radio terminal is encoded ("scattered") by the code pattern allocated to the mobile radio terminal.
Figure 1D illustrates an OFDMA (Orthogonal Frequency Division Multiple Access) system in combination with TDMA. OFDMA is a special case of FDMA and is a multi-carrier method in which the entire frequency band having a B bandwidth is subdivided into M 108 orthogonal sub-carriers. Thus, there are M (narrow) frequency bands each with one bandwidth of F = B/M. In OFDMA, a data stream to be sent is split over a multiplicity of subcarriers, and is transmitted (usually) in parallel. The data rate of each subcarrier is therefore lower than the total data rate. For each mobile radio terminal, a defined number of subcarriers 108 are allocated for data transmission. A major advantage of time resource allocation - OFDMA flexible frequency, over, for example, CDMA flexible code allocation, is higher spectral efficiency (ie, more bits per unit time per unit of bandwidth frequency).
In LTE, downlink access based on OFDMA/TDMA data streams is time subdivided into constant time slots, or frames. Each frame is further subdivided into intervals, and subframes. Not all subframes need to be in use (the network could be underutilized), but a subframe is the smallest amount of incremental time to be used for transmitting/receiving data with transceivers. Once a transceiver has acquired the base station timing, subframes are allocated to each transceiver with a scheduling function.
Figure 2 illustrates the above-mentioned full duplex FDD, half duplex FDD and TDD according to the prior art. Full duplex FDD uses two separate frequency bands for uplink 222 and downlink 220 transmissions, where both transmissions can occur simultaneously. Unlike FDD, TDD uses the same frequency band for transmission on both uplink 222 and downlink 220; however, within a given time frame, the transmission direction is actively changed between downlink 220 and uplink 222. Half-duplex FDD uses two separate frequency bands for uplink 222 and downlink 220 transmissions , similar to full duplex FDD, but uplink and downlink transmissions are not overlapped in time (similar to TDD).
LTE networks use a standard type 1 (one) 300 frame structure (as shown in Figure 3) which is used in both full duplex and half duplex FDD. Each radio frame 302 is ten (10) ms long, and consists of twenty (20) slots 304 in 0.5 ms intervals in length, numbered 0 to 19. A subframe 306 is identified as two (2) slots 304 consecutive. For FDD, ten (10) subframes are available for downlink transmission and ten (10) subframes are available for uplink transmissions in each ten (10) ms interval. Uplink and downlink transmissions are separated in the frequency domain. Depending on the interval format, a subframe consists of fourteen (14) or twelve (12) downlink OFDMA symbols, and fourteen (14) or twelve (12) uplink SC-FDMA symbols, respectively. Details of frame structure and timing are described in 3GPP TS 36.211 entitled "E-UTRA-Physical channels and modulation", the content of which is incorporated herein by reference in its entirety.
Referring now to Fig. 4, a two-stage paging channel message 400 is illustrated for LTE networks of the art. In LTE networks, the first OFDMA symbols are used to transmit three (3) types of "control channels": the PCFICH, PDCCH, and PHI-CH. The "Physical Control Format Indicator Channel" (PCFICH) indicates the Physical Downlink Control Channel (PDCCH) format. The PDCCH carries, among others, resource assignments and paging messages. Physical HARQ Indicator Channel (PHICH) is used to confirm or deconfirm (ACK/NACK) the data received from the mobile device on the Physical Uplink Shared Channel (PUSCH). Each of these control channels is divided into groups of four (4) subcarriers and spread over the entire LTE system bandwidth.
As shown, the UE monitors the Physical Downlink Control Channel (PDCCH) 402 at defined time points (i.e., defined subframes of 1 ms in length). A paging identifier is assigned to the UE by the network. When the designated paging identifier is decoded in the PDCCH, the UE decodes the associated Physical Downlink Shared Channel (PDSCH) 404. As shown, PDCCH is transmitted in subframe #i+2; occupying one (1), two (2), or three (3) OFDMA symbols from the first slot, where the number of symbols is dynamically adjusted by the network. The PDSCH 404 is transmitted in the remainder of the subframe #i+2, and occupies the OFDMA symbols in the subframe that are not used by the PDCCH, PCFICH or PHICH. IMPROVEMENTS FOR LONG-TERM EVOLUTION - ADVANCED (LTE-A)
Within the framework of legacy LTE architectures and access methods, fledgling LTE-A proposals will continue to expand the versatility of legacy LTE operation, providing bandwidths of up to 100 MHz with spectrum aggregation. For example, the width and bandwidth of an LTE-A cell can be composed of any number of spectral slices hereinafter referred to as "Component Carriers" (CC). However, in order to maintain backwards compatibility between LTE and LTE-A networks (ie an LTE-A eNodeB must also support LTE user equipment), each CC is maximally limited to 20 MHz a limitation of LTE.
Figure 5 is a graphical illustration of a prior art LTE-A schedule of the two-stage paging channel message 500 shown with respect to frequency and time. In LTE-A, the component carrier in LTE-A is equivalent to the entire system bandwidth of an LTE system. For example, in LTE-A, the bandwidth of each CC 502 can span up to twenty (20) MHz of bandwidth. Several CCs are provided simultaneously by the LTE-A cell, covering much greater aggregate bandwidth. LTE-A UEs can use several CCs simultaneously while LTE UEs can only use the equivalent of one (1) CC at a time. This channel structure retains full backwards compatibility for LTE UEs, while allowing much greater bandwidth possibilities for LTE-A UEs.
Although the proposed improvements to LTE-A greatly benefit UEs with ongoing connections, these same improvements have undesirable repercussions for unconnected UEs. During "idle" mode (ie when the UE is not connected to the network), the UE should periodically check the paging channel for status updates, eg pending calls, Short Message Service (SMS), updates data, etc. However, as there is no ongoing dialogue established between the UE and the radio access network during idle modes, the UE and the eNB may not necessarily agree on the paging channel parameters. Thus, the UE must check all paging channels in all possible CC slices. Similarly, the radio access network tracking area eNBs must actively transmit the paging channel messages over any suitable CCs. These CCs are hereinafter referred to as "Active Component Carriers (CCs)". In some implementations, a CC may be excluded from the paging operation (such non-active CCs are only used if the eNB assigns the resources to an LTE-A UE). Excluded CCs are not compatible with LTE UEs. Clearly, both the reception and transmission of a simple paging message over large stretches of spectrum are not optimal.
Figure 6 further illustrates the aforementioned shortcomings of prior art paging channel 600 transmission. As shown, the tracking area (TA) consists of three (3) eNBs 602: eNB1, eNB2, and eNB3. The three eNBs have a data concentration connection to a Mobility Management Entity (MME) 604, where the MME maintains a listing of all UEs currently known within the TA (including UE1606). To initiate a data transmission, the MME transmits a web page 610 by concentrating data to each of the TA's eNBs. Responsively, each eNB transmits a paging notification to the UE about its active CCs (air interface paging channel message 612).
As a brief comment, the terms "paging message", "paging notification", "paging channel message", etc. hitherto have generally been used interchangeably. Prior art terminology does not differentiate between the various incarnations of the paging message (from generation within the Core Network to reception at the User Equipment). However, in the discussions that follow, the aforementioned interpretation is imprecise and may be potentially confusing. Thus, as used hereinafter, the terms "page request" and "web page" refer to the page-related messages between the central network entity (eg the MME) and the intermediary server device (eg eNB ). In contrast, the terms "paging message", "paging notification", "paging channel", "paging transmission" refer to the page-related message sent over the air interface from the intermediary server device to the mobile device. The terms "paging engines", "paging", and "paging" refer to the total paging process, and do not imply limitations on either the network or the air interfaces.
Referring back to Fig. 6, in prior art paging transmission system 600, UE1 606 receives the paging channel message 612 from eNB1 602. The paging channel messages transmitted by the other eNBs (eNB2, eNB3) are wasted , and consume precious radio resources. Even within the coverage of eNB1, the UE receives paging messages about each CC of the eNB1. The UE only needs to receive a single paging channel message; so these duplicate paging channel messages are free too. OPERATION EXAMPLE
The following discussion illustrates several useful aspects of the present invention for optimizing paging mechanisms based on user context information.
Figure 7 shows an exemplary embodiment of a paging system 700 in accordance with the invention. As shown, the tracking area (TA) consists of three (3) 1200 eNBs: eNB4, eNB5, and eNB6.
The three (3) eNBs have a data concentration connection to a Mobility Management Entity (MME) 604, where the MME maintains a listing of all UEs currently known within the TA (including the UE2 1500 enabled by the invention).
Upon initial detection of a nearby suitable eNB4 1200, or during subsequent context information changes, the UE2 1500 transmits a first update message to the eNB4, the update message contains the context information (eg various supported options , timer options, etc.) useful for creating a paging deal. In response to the update message, the eNB4 transmits a confirmation message (eg selection of one or more options, timer settings, etc.). Once the acknowledgment message is received, the two parties have finalized the paging agreement, notably without network assistance (the entire transaction takes place between only the UE2 and the eNB4, without requiring a higher Core Network share). The paging agreement identifies the active CC that the eNB4 and UE2 will use for the paging channel messages.
To ensure the validity of the paging agreement, the UE2 and eNB4 periodically renew the paging agreement, using in a variant a "heartbeat" or "service pulse" message. A "watchdog" timer triggers corrective action if a heartbeat is missed; a missed heartbeat could either indicate momentary radio link interference, or alternatively, termination of the paging agreement. In this scenario, if the UE (UE2) does not renew the timer, then the eNB4 assumes that the UE2 has moved to another eNB (eNB5, eNB6) within the TA, and deletes the UE2 record.
As described in greater detail hereafter, context information can change arbitrarily. Changes to context information may or may not have an impact on the paging agreement. Notification of context change can be signaled via the update or confirmation messages described. The eNB4 stores the context information for each UE2, and if necessary changes the paging agreement. Such changes can be triggered by eNB4 (eg CC should no longer be used by UEs in idle mode, etc.), or by UE2 (eg if it detects a CC which is more suitable, etc.) .
During a page, the MME 604 transmits a web page 610 through the data pool to each of the TA's inventive eNBs. In contrast to the prior art schematic 600 of Figure 6, each of the eNBs 1200 enabled by the invention locally retains the context information and paging agreements relating to the UEs 1500 within its coverage area (generally a subset of the tracking area ). Consequently, when receiving the web page, each eNB queries its internal database of current context information. If the paged UE does not match any of its recorded UEs, then paging 610 is ignored. If the eNB has a successful match, then the eNB transmits a paging channel message 702. Thus, only the eNB4 transmits a paging channel message 702 to the UE2 1500 enabled by the invention through the appropriate CC; all other radio features of eNBs are free for other tasks, thereby improving overall network efficiency.
Furthermore, the above modality is advantageously a fully backward compatible solution with pre-existing LTE and/or LTE-A networks. For example, the preexisting MME 604 and associated messaging interfaces can remain unchanged. Also, the eNBs 1200 enabled by the invention can be freely interspersed with the pre-existing eNBs 602 since the paging scheme described herein does not require (but nevertheless can be used if desired) cooperation between the base stations. Similarly, eNBs 1200 and UEs 1500 configured in accordance with the present invention can freely intermingle with their pre-existing counterparts using the revision information (included in an embodiment within the context information records). METHODS
Figures 8 and 10 are logical flowcharts illustrating two (2) distinct aspects of wireless paging based on context information, in accordance with exemplary embodiments of the present invention. Figure 8 generally depicts the processes for updating context information and/or paging agreements for wireless devices operating within a wireless network. Figure 10 generically characterizes the paging mechanisms that exploit a paging agreement. ESTABLISHING AND MAINTAINING A PAGING AGREEMENT
Figure 8 illustrates a generalized method for maintaining a paging agreement between multiple parties in a cellular radio system. Specifically, as shown in method 800 of Figure 8, participating parties are first identified in step 602. In an exemplary embodiment, a first mobile device identifies one or more second base station devices. Such identification may be based on a publicly broadcast signal, such as a pilot channel, broadcast channel, etc. For example, LTE radio access networks publicly broadcast system information in System Information Blocks (SIB), or Master Information Blocks (MIB). An enabled UE 1500 decodes the SIBs from nearby eNBs (1200, 602). If the eNB supports the enhanced paging channel operations (according to the present invention) then the UE proceeds to step 804. Otherwise, the UE resumes the pre-existing idle mode procedures. Similar methods are applicable for eNBs, e.g. an eNB that receives an enhanced message from a UE (e.g. a "Tracking Area Update"), can be configured for the enhanced paging procedures. If the eNB receives a pre-existing message from the UE, then it takes over for pre-existing paging procedures.
Furthermore, in certain full networks, the mobile device can detect several candidate base stations. Conceivably, candidate base stations may have a wide network of compatibilities, spanning various gradations of pre-existing, improved, and perhaps even future incarnations of other paging channel operations. Consequently, in certain implementations, the mobile device may select one or more of the candidate base stations for exchanging context information, and paging agreement (step 804).
In other embodiments, the one or more second base station devices identify the first mobile device. Such identification can be performed by checking one or more device attributes. For example, a mobile device within the coverage of a base station can be consulted for improved paging channel capacity. Similarly, in other variations, the base station may discover improved mobile device operation through other methods, e.g., out-of-band signaling, communication with a network management entity, etc.
The most efficient use of network resources would dictate the fewest number of radio resources (eg, a CC) to robustly transmit a paging message to the mobile device. Thus, in one embodiment, the identified parties agree on a number of radio resources for paging transmission. For example, in cases of very clear reception, perhaps only a single eNB transmitting paging messages over a single CC is sufficient. In contrast, in cases of fuzzy reception (due to, for example, high fading environments, very high user density, etc.), multiple base stations may be required to use one or more CCs to transmit the paging notifications.
In step 804, the identified parties exchange context information and/or paging agreements. In LTE networks, a reliable exchange of context information is conducted over an established connection. LTE networks only support a single Radio Resource Connection (RRC) for any UE at a time. In most cellular systems, establishing a connection requires significant amounts of control layer signaling that includes authentication, authorization, registration, etc. Each of these network transactions would be duplicated for each base station with which the mobile device exchanges context information. Consequently, in alternative embodiments of the present invention, the device transmits a simple update message containing its context information to each member of the Tracking Area (TA) without establishing a connection. Such a modality would reduce the necessary requirements for control layer signaling.
In certain radio access technologies, network connection is much simpler. Thus, in some modalities, context information can preferably be exchanged using network connections. For example, an ad hoc network generally provides a radio connection to IP (Internet Protocol) based networks, without requiring complex registration procedures. Similarly, future home networking applications may have IP-based (Internet Protocol) services over multiple co-existing wireless protocols, so the same IP identity (eg Bluetooth, Wi-Fi, etc.) may not have an entity shared through radio platforms. In such heterogeneous environments, a connection must be established to connect the highest IP-based user identity with the lower radio layer attributes.
Context information may include, but is not limited to: UE identity, radio resources (such as component (CC) carriers, frequency bands, time slots, etc.), paging channel capacity, last eNB connected (within TA), listing of nearby eNBs, listing of TA eNBs, geographic data, received signal quality indicators, nearby cell identification, etc. In a minimal case, the context information consists of the UE identity, and the active CC.
In an exemplary embodiment, the mobile device provides its context information to the base station; however, other radio networking technologies can have bidirectional context information exchanges. Also, it will be appreciated that other types of context information can be substituted; the above being merely illustrative. The mode and types of substituted context information are readily determined by those skilled in the art given the content of the present description.
In one embodiment, context information is stored within the base station using an internal database. Supplementary databases can be used for mobile devices. In alternative embodiments, context information can also be transferred or sent to other network entities, including nearby base stations, central network management entities, etc. Context information is generally static; however, in some scenarios, various context information can change dynamically, and require updating (for example, periodically or in response to the occurrence of a specific event). Context information is used and monitored by each of the devices to determine and/or update paging agreements. For example, a base station can track the context information of multiple UEs to constantly optimize its radio resource utilization. Such variations would allow eNBs to track context balance UEs between CCs, also, mobile devices can track context information for multiple eNBs, and selectively enter into agreements with other base stations.
In an implementation, a confirmation message is responsively transmitted to ensure that all parties are in agreement with the context information. For example, once a base station has received context information from a mobile device, the base station transmits a confirmation message indicating the context information and finalizing a paging agreement. In some variants, confirmation indicates acceptance of the message content, or alternatively, selection of one or more context options.
Step 804 ends when the participating parties to the paging notification mechanism are in initial agreement (implicitly or explicitly) as to the paging agreement.
At step 806, the participating parties renew the paging agreement to ensure continued agreement on the terms. In an exemplary modality, the paging agreement is renewed using a periodic renewal message. If the renewal message is received within an expected period, then the paging agreement is renewed. If however, the renewal message is not received within an expected period, then the paging agreement is considered invalid. In such a variant, the paging agreement is later discontinued, and the process automatically continues to step 808 to delete the related recordings. In another such variant, the paging agreement is revived, and the process repeats step 806. The paging agreement may also be affirmatively discontinued (for example, with an explicit message, which may include reasons or codes if desired).
As noted above, an embodiment of the invention has renewed the paging arrangement at periodic or known intervals or time slots. For example, in the above-mentioned scenario, the second base station sets a "single countdown watchdog" timer that has a first renewal period N the first mobile device transmits a renewal message before the expiration of the "watchdog" timer. The first mobile device may use a periodic "heartbeat" timer that has a second period O. Alternatively, the mobile device may use an aperiodic refresh scheme (provided the aperiodic refresh message satisfies the N period restrictions).
Various systems can still dynamically update the N refresh period. For example, in dynamic radio environment change, the N period can be shortened for the high noise environments, while the low noise or stable environments can lengthen the N period . On systems which do not maintain a connection, mutable parameters (such as the N period) can be transmitted through other transmission control channels (eg, embedded within a System Information Block (SIB), Block of Master Information (MIB), etc.).
Generally, the shortening or lengthening of the renewal period N also affects the second period O. The mode of effect may or may not be directly related. For example, the mobile device can select a value O, shorter than N, but optimized for power consumption (eg, minimizing the number of renewal messages sent). In contrast, the mobile device may select a value O for robustness to provide multiple renewal attempts before the base station's N timer period expires.
In other embodiments, the mobile device may transmit the renewal message irregularly or aperiodically, such as in an event-triggered mode. For example, in an exemplary system, the mobile device only transmits a renewal message when triggered or queried by the base station. The base station may periodically transmit a renewal request message; in response to this, each mobile station within range transmits a renewal message. Alternatively, for paging notification systems where the base station and mobile station retain an active radio link connection, the base station transmits a renewal request message, and the mobile station transmits the renewal message.
In other variations, the refresh message may be triggered, based on other factors such as environmental channel conditions, mobile device population, etc. For example, a mobile device can passively monitor broadcast channels (such as a pilot channel). When pilot channel reception fluctuates, refresh messages are resent. In another example, a base station might consider the number of nearby mobile devices. As the number of mobile devices increases or decreases, the base station may request renewals from nearby mobile devices to suppress devices that have gone out of reception.
In yet another variation, the paging agreement is assumed unless a paging channel message is lost. Thus a mobile device and the base station agree on a paging agreement, which is assumed to be valid until proven otherwise. If the mobile device does not respond to a paging channel message, then the base station invalidates the paging agreement.
As previously mentioned, if the renewal message is not received within the expected period, then the paging agreement is invalid. However, in some embodiments, a revival procedure can be performed in optional step 807. If the system does not support revival, then the process immediately skips to step 808. Furthermore, although it is generally easier for the transmitting party (eg the base station) to determine that the paging agreement is invalid (due to a missed paging, etc.), this does not prevent the receiving party (eg the mobile device) from determining that the paging agreement is invalid. For example, a mobile device can monitor nearby pilot channels. If a mobile device loses pilot channel reception, then the mobile device can safely assume that the paging channel would also be lost (the pilot channel is typically the easiest channel to receive). If the mobile device were to re-acquire the pilot channel, it may proceed to step 807 to proactively revive the paging agreement.
At step 807, attempts are optionally made to revive a previously lost or invalid paging agreement. In one embodiment, the base station attempts multiple paging message retries. After the watchdog timer has expired, the base station transmits a second paging channel message and resets a P restart timer. Upon expiration of the P timer, another retry may be attempted. Paging channel retries can be attempted any number of times; however, a maximum number of retries can prevent excessive network congestion.
In other embodiments, the base station community may switch to a preexisting paging mode. For example, if the first base station is unable to page the mobile device, the base station can signal other base stations in the tracking area. Subsequently later, the entire tracking area returns to the preexisting paging operation.
In a mobile-initiated modality, the mobile device may transmit a refresh or update message upon re-coupling with a previously known base station. The base station returns to the paging agreement operation if it receives any out-of-sequence messages.
Upon successful restoration, participants return to step 806. Unsuccessful restoration attempts eventually proceed to step 808. Still other methods and schemes for restoration will be immediately recognized by persons skilled in the art given the contents of this description.
At step 808, the paging agreement is discontinued. In one embodiment, one or more parties to the paging agreement delete the paging agreement. For example, the base station may delete the paging agreement for a mobile device. Thereafter, the mobile device must reset a paging agreement with the base station. In other modalities, context information can be reserved for possible restoration. For example, a mobile device may be able to revive its connection with the base station, if the base station can previously retrieve the invalid context information, even if no current paging agreement exists.
An exemplary paging agreement transaction 900 is depicted in Figure 9, which further illustrates the paging agreement between multiple parties in a cellular radio system. As shown, the exemplary system includes a first UE A 1500, a first eNB1 1200, and a second eNB2 1200. The first UE A identifies nearby cellular base stations (e.g., based on a pilot signature, etc.) at a first time 902. In the illustrated example, UE A preferably selects the first eNB1 to exchange the context information and the paging agreement.
UE A 1500 transmits a first update message to the first eNB1 1200 (904), the update message containing the context information. The eNB1 stores the context information, generates a paging agreement and starts a “watchdog” timer (which has a T2 period). The first eNB1 also transmits an acknowledgment to the first UE A, formalizing the paging agreement. Periodically (every T1 where T1 is shorter than the base station watchdog timer), UE A transmits a refresh message (906).
At a later time 908, the first UE A detects a second base station eNB2 (or determines that the second base station is more desirable than the first base station). UE A initiates a paging agreement with the second eNB2 (1200). Soon after, UE A stops renewing the paging agreement. Once the “watchdog” timer expires, the first base station eNB1 terminates the context information and paging agreement. PAGING BASED ON CONTEXT INFORMATION
Figure 10 illustrates an embodiment of the invention, which specifically features paging channel operation methods that exploit device context information. In the following discussion, one or more second base station devices receive a web page from a network entity (such as a Mobility Management Entity (MME) 604). In response, each base station individually determines whether it should transmit a paging channel message to the mobile device. In some implementations, the mobile device receives the paging channel messages from multiple base stations. The first single paging message can be replied to, while subsequent duplicate paging messages are ignored. In alternative embodiments, the mobile device may selectively respond to one of the preferentially received paging messages (e.g., such as to improve signal quality, match device considerations, optimize service considerations, etc.).
The web page and network entity can be optionally modified to work with the base stations described. In one embodiment, the base station determines the appropriate response without further consulting external network entities. In contrast, it is appreciated that the base station may have supplemental interfaces, or modified interfaces with future network devices, so as to further improve network operation.
Furthermore, although the following process is described in the context of a cellular network, it is appreciated that the process is equally adaptable to other protocols, and wireless systems. In fact, it is envisioned that heterogeneous network structures could be configured to support a single identity that responds to multiple radio access technologies. The following process appropriately allows each of the access point mix to independently transmit paging messages to the device.
In step 1002 of method 100 of FIG. 10, the one or more paging transmission devices receive a web page from a central network authority. In an exemplary modality, each eNB 1200 of a specified tracking area receives a web page from an MME 604. Alternatively, the web page can be transferred from a peer entity (eg, similar to a re-routing mechanism ). For example, a first base station tracking area can enable other base stations (which have less recent context information) for secondary paging transmission retries.
In step 1004, the paging transmission device considers the web page with reference to an internal database of context information. The built-in context information database returns corresponding context information (if available) and any paging agreements (if valid), when provided with a device-specific identifier. Consequently, if the web page addresses a device-specific identifier that has a valid paging agreement, then the base station generates the paging channel message in accordance with the context information (step 1006). If the web page does not return a current paging agreement, then the paging transmission device ignores the web page (step 1008).
In step 1006, the page transmitting device transmits the paging channel message. In one embodiment, a successful response to the paging channel message (i.e., the paging receiving device responds), renews the paging agreement. A successful response resets the “watchdog” timer. In other implementations, a successful response to the paging channel message is distinct from renewing the paging agreement. An unsuccessful paging transmission can also be used as a precondition or trigger for reverting to the preexisting paging operation, or alternatively triggering the restoration of the paging agreement.
In contrast to step 1006, during step 1008 the paging transmission device ignores the web page. In one modality, the web page is queued for subsequent transmission in the event of a failure. For example, if initial attempts by a primary base station fail, other secondary base stations can transmit the same paging message to augment the primary base station. In another example, the paging mechanisms of the present invention revert to the preexisting operation (all TA base stations) if the paging mechanism fails.
An exemplary paging channel transaction 1100 in accordance with the invention is diagrammed in Figure 11, which depicts the paging channel transactions of a mobile device using multiple base stations in a cellular radio system. As shown, the exemplary system includes a first UE A 1500, a first eNB1 1200A, a second eNB2 1200B, a third eNB3 1200C, and a central network authority MME. The first, second, and third base stations are addressed as a tracking area. Initially, UE A negotiates a paging agreement with the first eNB1 (see, for example, procedure 900 of figure 9).
The MME 604 receives the data addressed to the first UE A. The MME 604 generates a web page for the UE A 1500, and transmits the web page 610 to the current tracking area (eNB1. eNB2, eNB3); each base station in the tracking area receives a paging request. Responsively, each base station checks for a valid paging agreement, and uses the corresponding context information to generate the paging channel message 612. As shown in Fig. 11, only the first eNB1 1200A transmits the paging channel message 612. During message exchange UE A and eNB1 have an active dialog, so in this example the “watchdog” timers can be suspended (ie the paging agreement remains valid). Once the connection has been released, the paging agreement “watchdog” timers are continued. EXEMPLARY BASE STATION APPLIANCE
Referring to Figure 12, an exemplary base station apparatus 1200 useful in implementing the functionality previously described above is illustrated and described. Base station apparatus 1200 of the illustrated embodiment generally takes the form factor of an independent device for use in a cellular network, despite other form factors (eg, femtocells, picocells, access points, components within other devices hosts, etc.) are provided as well. The apparatus of Figure 12 includes one or more substrates 1202 that additionally include a plurality of integrated circuits that include a processing subsystem 1204 such as a digital signal processor (DSP), a microprocessor, a PLD or port network, or a plurality of processing components, RF transceivers, as well as a 1206 power management subsystem that provides power to the 1200 base station.
Processing subsystem 1204 includes in one embodiment an internal cache memory, or a plurality of processors (or a multi-core processor). Processing subsystem 1204 is preferably connected to non-volatile memory 1208 such as a hard disk drive (HDD), as well as a memory subsystem which may comprise SRAM, Flash, SDRAM, etc. The memory subsystem can implement one or more DMA-type hardware in order to facilitate fast data access.
The exemplary 1200 handset, in some modes, will implement some form of broadband access. In the illustrated embodiment, broadband access is provided by a DSL connection (ie, through a DSL 1210 subsystem), although other interfaces, whether wired or wireless, may be used in place of or in combination with the 1210 DSL subsystem shown. The digital processing portion of DSL can either be performed on processor 1204, or alternatively on a separate DSL processor (not shown). Still, although a DSL broadband connection is illustrated, it is recognized by one skilled in the art that other broadband access schemes such as a DOCSIS cable modem, T1 line, WiMAX (ie, IEEE Std. 802.16) ), ISDN, FiOS, microwave connection, satellite connection, etc. they could readily be replaced or even used in tandem with the aforementioned DSL interface. DSL has the advantage of being low-cost and generally ubiquitous, and loaded over a copper-based telephony infrastructure which is currently widely distributed across the entire population.
In an exemplary embodiment, the base station must operate uninterruptedly with the pre-existing MME 604 sets of the core network. In such an embodiment, the base station and the MME are connected through the broadband type interface 1210.
Base station apparatus 1200 also includes one or more RF modem subsystems. Modem subsystems 1202 allow the base station to provide services to one or more subscriber devices. It is readily appreciated that in some implementations of the invention, multiple subsystems may be required. For example, a base station may provide multiple RF modem subsystems to provide, among others, multi-mode operation (eg, GSM, GPRS, UMTS, and LTE) over multiple distinct air interfaces. The 1212 modem subsystems include a digital modem, RF front interface, and one or more antennas.
It is further noted that in some embodiments, it may be desirable to remove some of the presently illustrated components (such as the RF front interface), or alternatively the illustrated discrete components may be merged together to form a single component.
As noted above, exemplary implementations of the invention utilize a paging arrangement and context information for optimized paging channel operation. In such an implementation, a paging agreement that includes one or more details of context information is referenced to a unique or semi-unique user identity. For example, the base station receives an update message via the wireless interface. Figure 13 illustrates an exemplary update message 1300 that contains: (i) mobile device identity 1302, (ii) hardware version 1304. (iii) one or more suggested Component Carriers 1306, etc.
The base station generates a paging agreement by selecting a parameter set from the context information. In other variants, the base station accepts or ignores default parameters.
Figure 14 illustrates an exemplary acknowledgment message containing: (ii) version of paging agreement 1402, (iii) renewal timer period 1404, (iv) one or more Component Carriers 1406, (v) mobile device ID 1408 desired, etc. Figure 14A illustrates an exemplary paging agreement entry 1450 stored in the eNB. The paging agreement entry includes (i) UE ID 1452, (ii) cell ID 1454 (if multiple cells are operated by eNB), (iii) CC 1456 selected, (iv) watchdog timer period 1458 , and (v) optional renewal time period 1460.
In some simple variants, the confirmation message is an acceptance or denial of context information.
The base station apparatus stores the paging agreement and relative context information within an internal database, referenced by the mobile device identity. Database entries are valid for use according to a “watch dog” timer (adjusted for the refresh timer period). The operation of the watchdog timer is set and restarted, responsive to the “heartbeat” message from the associated mobile device. In some configurations, if the “watchdog” timer has expired the entries are deleted. In alternate configurations, timer expiration triggers restore attempts.
The base station apparatus of Figure 12 further includes an apparatus for conditional paging transmissions to a mobile device based on the validity and contents of the internal database. Responsive to receiving a web page from the MME 604 (coupled to the network interface 1210), the base station apparatus references the internal databases by current, valid recordings having the same unique or semi-unique mobile device identifier. If a suitable recording exists, then the base station apparatus generates and transmits a paging channel message in accordance with the appropriate context information (e.g., specified Component Carriers, etc.).
Other variants of internal database operation, timer implementations, context information, and conditional paging transmissions will be readily implemented by one skilled in the art given the present description. MOBILE EXEMPLARY APPLIANCE
Referring now to Figure 15, an exemplary UE client or apparatus 1500 that implements the methods of the present invention is illustrated. As used herein, the terms "customer" and "EU" include, but are not limited to, cell phones, smartphones (such as, for example, the iPhone™ device manufactured by your Assignor), personal computers (PCs) such as, for example, iMac™, Mac Pro™, Mac Mini™ or MacBook™, and minicomputers, whether desktop, laptop, or others, as well as mobile devices such as portable computers, PDAs, personal media devices (PMDs) such as, for example, an iPod™, or any combination of the above. The paging channel reception configuration is preferably performed in software, although firmware and/or hardware modalities are also foreseen.
UE apparatus 1500 includes a processor subsystem 1502 such as a digital signal processor, a microprocessor, a field-programmable gate network, or a plurality of processing components mounted on one or more substrates 1504. Processing subsystem 1502 is connected to a memory subsystem 1506 which comprises a memory which may, for example, comprise SRAM, flash and SDRAM components. The memory subsystem may implement one or more of a DMA type hardware in order to facilitate data accesses as is well known in the art.
Radio/modem subsystem 1508 comprises a digital baseband, an analog baseband, a TX front interface, and an RX front interface. Apparatus 1500 further includes an antenna assembly; the selection component may comprise a plurality of switches to enable various antenna operating modes, such as for specific frequency ranges, or specified time intervals. Although a specific architecture is discussed, in some embodiments, some components may be removed or may otherwise be merged with each other (such as RF RX, RF TX and ABB combined, as to the type used for 3G digital RFs) as would be appreciated by one skilled in the art given the present description.
The analog baseband typically controls the operation of the radio front interfaces, so the digital baseband modem loads the analog baseband with parameters for receiving paging channel messages. The select component can be controlled by the analog baseband to receive the paging channel messages to offload such control functions from the digital baseband modem.
The illustrated power management subsystem (PMS) 1510 provides power to the UE, and may comprise an integrated circuit and/or a plurality of discrete electrical components. In an exemplary portable UE apparatus, power management subsystem 1006 advantageously interfaces with a battery.
The 1512 user interface system includes any number of well-known I/O's including, without limitation: a keyboard, touch screen, LCD display, backlight, speaker, and microphone. However, it is recognized that in certain applications, one or more of these components can be removed. For example, PCMCIA card type UE modalities may not have the user interface (as these would overlay the user interface of the device to which they are physically and/or electrically coupled).
Apparatus 1500 further includes optional additional peripherals 1514 which include, without limitation, one or more GPS transceivers, or network interfaces such as IrDA ports, Bluetooth transceivers, USB, Firewire, etc. It is however recognized that these components are not required for the operation of the UE in accordance with the principles of the present invention.
In the illustrated embodiment, modem subsystem 1508 further includes subsystems or modules for: requesting paging agreements, renewing paging agreements, and selectively receiving paging messages in accordance with the paging agreement. These subsystems can be implemented in software or hardware, which is coupled to the radio grinding subsystem. Alternatively, in another variant, the subsystems can be directly coupled to processing subsystem 1502.
An exemplary UE is configured to transmit update messages that include current context information; the update message makes it easy to generate a paging agreement. Subsequently thereafter, the UE receives a paging agreement, based on the transmitted context information. The accepted paging agreement is used for an additional operation (see figures 13 and 14 previously referenced).
In an exemplary embodiment, the UE apparatus configures its paging channel reception in accordance with the paging agreement and the relative context information. Once the UE apparatus has received the paging agreement, a "heartbeat" timer is set to periodically transmit the renewal messages to extend the current paging agreement. If the UE should wish to terminate the paging agreement, the UE simply refuses to transmit the heartbeat. In still other embodiments, the heart rate message may include other context information, or supplemental updates, to the base station's internal database.
During operation, the UE apparatus can optimize the paging channel reception for the resources and scheduling of the paging agreement. In an exemplary implementation the UE can only check a subset of all possible Component Carriers. Other variants of the timer, context information, and conditional paging channel reception implementations are readily implemented by one skilled in the art, given the present description. COMMERCIAL METHODS AND RULES
It will be recognized that the above networking apparatus and methodologies can be readily adapted to various business models.
In a commercial paradigm, a properly configured user equipment (eg UE 1500) can receive enhanced paging messages, and can efficiently monitor pre-existing paging channels, thus increasing the overall perceived quality of experience. In such an embodiment, a dedicated subset of paging channels is allocated to the enabled UEs. Thus, although the pre-existing devices continue to largely monitor all paging channels (in a comparatively inefficient way), the UE 1500 devices according to the invention only monitor the designated subset of paging channels. This proposal is remarkably efficient, and significantly improves energy consumption, thereby leading to an improved user experience and differentiation over competitive products.
The network apparatus and methodologies mentioned above can also be readily adapted for operation in accordance with an underlying business rules algorithm or "machine". This business rules machine can comprise, for example, an application of software (and/or firmware or even hardware aspects), and is implemented in a modality as a separate entity in the base station. A business rules machine may find a specific benefit in femtocell developments (eg as part of an improved offer by a small commercial company, or residential equipment). The rule machine is in effect a high-layer supervisory process which assists the base station operator (or other interested party) in making operational decisions or resource allocations based on important criteria such as financial aspects, user experience improvement , etc.
In one embodiment the business rules machine is configured to account for revenue and/or profit implications associated with provisioning resources to one or more users. Consequently, the exemplary business rules machine can modify the system's paging channel behaviors to support a broader user base (eg, using fewer CC slices per user) or alternatively, preexisting support or robust operation (eg, allocating more CC slices per user).
For example, in one example, evaluating a user population's requests for resources (eg, frequency spectrum) might include an analysis of the incremental cost, throughput, and/or profit associated with the various allocation options. In some cases, the network provider may determine that new service requests are unusual, so paging is less important. In other cases, the network provider may determine that new users and services are frequently moving in and out of a cell, thus requiring an allocation of more paging resources. These "business rules" can be imposed, for example, at the time of requesting resources, and then maintained for a period of time (or until an event that triggers a revaluation occurs), or alternatively according to a periodic model. .
Myriads of other schemes for implementing dynamic resource allocation will be recognized by those skilled in the art, given the present description.
It will be recognized that although certain aspects of the invention are described in terms of a specific sequence of steps of a method, these descriptions are only illustrative of the broader methods of the invention, and may be modified as required by the specific application. Certain steps may be made unnecessary or optional under certain circumstances. In addition, certain steps or functionality can be added to the described modalities, or the order of performance of two or more steps swapped. All such variations are considered to be encompassed within the invention described and claimed herein.
Although the above detailed description has shown, described, and highlighted new features of the invention as applied to various modalities, it will be understood that various omissions, substitutions, and changes in the form and details of the device or process illustrated can be made by those skilled in the technique without departing from the invention. The above description is the presently contemplated best mode of carrying out the invention. This description is in no way intended to be limiting, but rather is to be taken as illustrative of the general principles of the invention. The scope of the invention is to be determined with reference to the claims.

权利要求:
Claims (21)
[0001]
1. Method for paging a mobile device from a base station in a wireless network based on a selected resource used by the mobile device to receive a paging channel, the method characterized by comprising the steps of: selecting, through the base station , a resource to be used by the mobile station to receive paging information; send the paging information to the base station's mobile device using only one paging channel of the selected resource; generate a paging agreement between the mobile device and the base station ; and update the paging agreement using a periodic renewal message.
[0002]
2. Method according to claim 1, characterized in that the base station comprises an eNodeB compliant with LTE, and the mobile device comprises a UE compliant with LTE.
[0003]
3. Method according to claim 2, characterized in that the selected resource comprises at least one component carrier (CC).
[0004]
4. Method according to claim 3, characterized in that the base station comprises an eNodeB in accordance with LTE-A (Long-Term-Advanced Evolution) which is configured to support a maximum bandwidth of 20 MHz for the at least one component carrier.
[0005]
5. Method according to claim 1, characterized in that the base station comprises an eNodeB conforming to LTE-A (Long Term-Advanced Evolution) which is backward compatible with at least one paging facility. Pre-existing LTE (Long Term Evolution).
[0006]
6. Method according to claim 1, characterized in that the selected resource used by the mobile device to receive the paging channel is used in an idle mode (not connected).
[0007]
7. Method for conducting paging operations with a mobile device in a multi-cell network, the multi-cell network having a plurality of base stations associated with a tracking area and a core portion, the method characterized by comprising the steps of: associating the mobile device with the tracking area; responsive to receiving a web page in the tracking area, only a subset of the plurality of base stations that pages the mobile device based on context information stored within the subset of the plurality of base stations, and receiving a communication from the mobile device on the subset of the plurality of base stations without the subset of the plurality of base stations sending the communication to the core portion.
[0008]
8. Method according to claim 7, characterized by the fact that the mobile device and the base stations conform to Advanced Long-Term Evolution (LTE-A), and the core portion conforms to LTE, and not in compliance with Advanced Long-Term Evolution (LTE-A).
[0009]
9. Method according to claim 7, characterized in that the context information comprises a description of at least one paging resource available for the mobile device.
[0010]
10. Method according to claim 7, characterized in that no paging is performed if the context information is invalid.
[0011]
11. Method according to claim 7, characterized in that the tracking area also comprises preexisting base stations, and the tracking area is designed by a preexisting central network entity.
[0012]
12. Base station apparatus characterized by comprising: a first wireless interface configured to communicate with a population of mobile devices; a second interface configured to receive web pages; a processor; and a computer-readable medium, the computer-readable medium comprising instructions which when executed by the processor: selects a resource to be used by the mobile station to receive paging information, and responsive to receiving a web page: sends the web page to the mobile device using a paging channel of the selected resource, generating a paging agreement between the mobile device and the base station; and update the paging agreement using a periodic renewal message.
[0013]
13. Base station according to claim 12, characterized in that the base station comprises an eNodeB compliant with LTE, and the mobile device comprises a UE compliant with LTE.
[0014]
14. Base station, according to claim 12, characterized in that the selected resource comprises at least one component carrier (CC).
[0015]
15. Mobile station apparatus in communication with a multi-cell network having a plurality of base stations and a core portion, the apparatus characterized by comprising: a first wireless interface configured to communicate with the plurality of base stations; a processor ; and a computer readable medium, the computer readable medium comprising instructions which when executed by the processor: specify only a subset of the plurality of base stations to perform paging, where the plurality of base stations is associated with a tracking area; and direct communication of the specified subset of base stations to base stations only, without communicating the specified subset of base stations to the core portion.
[0016]
16. Mobile station according to claim 15, characterized in that the selected resource comprises at least one component carrier (CC).
[0017]
17. Mobile communication apparatus in communication with a multi-cell network having a plurality of base stations and a core portion, characterized by comprising: a digital processor; a wireless interface in data communication with the processor; and a storage device in data communication with the processor, the storage device comprising computer executable instructions which, when executed by the digital processor: causes the transmission of an update message, the update message configured to cause a receiver thereof generate a paging agreement, and invoke a timing function that has a first schedule; and causes the transmission of a second message which has a second schedule different from the first schedule, the second message being configured to cause the extension of the paging agreement.
[0018]
18. Apparatus according to claim 17, characterized in that the second message is further configured to make the receiver restart the timing function.
[0019]
19. Apparatus according to claim 17, characterized in that the mobile device comprises a cellular device in accordance with LTE-A (Long Term-Advanced Evolution) having a battery power supply, and the implementation The paging agreement reduces the power consumption of the power supply by reducing the features that the mobile device must check during idle mode of operation in order to receive a message.
[0020]
20. Apparatus according to claim 19, characterized in that the scheduling and the second scheduling comprise a first and a second period, respectively, and the second period is shorter than the first period.
[0021]
21. Apparatus according to claim 17, characterized in that and the paging agreement comprises a specification of at least: (i) a component carrier to be used for paging the mobile device; and (ii) at least one timing parameter to be used for periodic transmission of the second message.

类似技术:

---

公开号 | 公开日 | 专利标题

---

US10973001B2|2021-04-06|Methods and apparatus for optimizing paging mechanisms using device context information

---

JP6765369B2|2020-10-07|Terminal equipment, base station equipment and methods

---

WO2016121537A1|2016-08-04|Terminal device, base station device, and method

---

EP3169108B1|2020-09-02|Cell selection using an offset related to direct d2d communication

---

WO2020088512A1|2020-05-07|User equipment and method executed by user equipment

---

WO2016121538A1|2016-08-04|Terminal device, base station device, and method

---

WO2016121514A1|2016-08-04|Terminal device, base station device, and method

---

WO2016121536A1|2016-08-04|Terminal device and method

同族专利:

---

公开号 | 公开日

---

EP2494830A2|2012-09-05|

---

CN105007626A|2015-10-28|

---

KR20170081734A|2017-07-12|

---

US20140106792A1|2014-04-17|

---

US20140106791A1|2014-04-17|

---

KR101395409B1|2014-05-14|

---

EP3651513A1|2020-05-13|

---

KR101654155B1|2016-09-05|

---

JP6254112B2|2017-12-27|

---

KR101598263B1|2016-02-26|

---

EP3110216A1|2016-12-28|

---

CN102640550A|2012-08-15|

---

CN102640550B|2015-07-15|

---

JP2013509817A|2013-03-14|

---

US20110105155A1|2011-05-05|

---

CN105007626B|2019-06-04|

---

KR101754925B1|2017-07-07|

---

US9554358B2|2017-01-24|

---

JP5710635B2|2015-04-30|

---

KR20130140860A|2013-12-24|

---

US20190082419A1|2019-03-14|

---

US9198160B2|2015-11-24|

---

KR20120087976A|2012-08-07|

---

US20140106767A1|2014-04-17|

---

KR20130138322A|2013-12-18|

---

US8611895B2|2013-12-17|

---

US10136411B2|2018-11-20|

---

BR112012011461A2|2016-05-10|

---

US20140099965A1|2014-04-10|

---

US9363793B2|2016-06-07|

---

WO2011053649A3|2011-06-30|

---

JP2020156095A|2020-09-24|

---

JP2018078579A|2018-05-17|

---

US10973001B2|2021-04-06|

---

JP2015144460A|2015-08-06|

---

EP3110216B1|2020-01-29|

---

US20200154395A1|2020-05-14|

---

BR112012011461A8|2017-10-17|

---

KR20160105992A|2016-09-08|

---

WO2011053649A2|2011-05-05|

---

EP2494830B1|2016-10-05|

---

WO2011053649A4|2011-09-15|

---

US9313772B2|2016-04-12|

---

US20170230934A1|2017-08-10|

---

US10568068B2|2020-02-18|

---

KR101863020B1|2018-06-01|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

US4823123A|1988-01-07|1989-04-18|Motorola, Inc.|Knowledge back pager with frequency control apparatus|

---

US5119502A|1990-08-30|1992-06-02|Telefonaktiebolaget L M Ericsson|Periodic system ordered rescan in a cellular communication system|

---

SE469867B|1992-02-17|1993-09-27|Ericsson Telefon Ab L M|Paging Procedure|

---

US5911120A|1995-09-08|1999-06-08|At&T Wireless Services|Wireless communication system having mobile stations establish a communication link through the base station without using a landline or regional cellular network and without a call in progress|

---

US5675629A|1995-09-08|1997-10-07|At&T|Cordless cellular system base station|

---

US6748209B2|1995-10-30|2004-06-08|At&T Wireless Services, Inc.|Method and apparatus for storing activation data in a cellular telephone|

---

US8526971B2|1996-08-15|2013-09-03|Snaptrack, Inc.|Method and apparatus for providing position-related information to mobile recipients|

---

US6985742B1|1996-08-15|2006-01-10|Spatial Adventures, Inc.|Method and apparatus for providing position-related information to mobile recipients|

---

FI972725A|1997-06-24|1998-12-25|Nokia Telecommunications Oy|re-routing|

---

US6101394A|1997-12-24|2000-08-08|Nortel Networks Corporation|CDMA multiple carrier paging channel optimization|

---

JPH11289580A|1998-04-01|1999-10-19|Sharp Corp|Radio telephone|

---

EP1071304A1|1999-07-23|2001-01-24|Lucent Technologies Inc.|Method and apparatus for efficiently paging a mobile terminal in a cellular network|

---

JP2001309419A|2000-04-21|2001-11-02|Fujitsu Ltd|Position registration method for mobile communication system, and its mobile unit|

---

US6557072B2|2001-05-10|2003-04-29|Palm, Inc.|Predictive temperature compensation for memory devices systems and method|

---

US7058181B2|2001-08-02|2006-06-06|Senforce Technologies, Inc.|Wireless bridge for roaming in network environment|

---

US7061894B2|2001-08-07|2006-06-13|Industrial Technology Research Institute|System and method for providing voice communications for radio network|

---

US7260396B2|2003-08-19|2007-08-21|Lucent Technologies Inc.|Methods for tracking users in a communication network|

---

US20060026017A1|2003-10-28|2006-02-02|Walker Richard C|National / international management and security system for responsible global resourcing through technical management to brige cultural and economic desparity|

---

US7920539B2|2004-08-26|2011-04-05|Hm Electronics, Inc.|Communication system and method|

---

US7263371B2|2004-09-13|2007-08-28|Lucent Technologies Inc.|Method for controlling paging and registration of a mobile device in a wireless communications system|

---

US20060206246A1|2004-10-28|2006-09-14|Walker Richard C|Second national / international management and security system for responsible global resourcing through technical management to brige cultural and economic desparity|

---

US7894407B2|2005-03-25|2011-02-22|Alcatel-Lucent Usa Inc.|Method and apparatus for seamless roaming for wireless networks|

---

US20070076664A1|2005-09-30|2007-04-05|Yafan An|Handoff decision making for heterogeneous network environments|

---

US20070076696A1|2005-09-30|2007-04-05|Yafan An|Use of SIP messages for location services|

---

JP5080481B2|2005-10-04|2012-11-21|テレフオンアクチーボラゲットエルエムエリクソン（パブル）|Selection of radio network control station for IP-connected radio base station|

---

CN101278592B|2005-10-04|2013-03-27|艾利森电话股份有限公司|Paging for a radio access network having pico base stations|

---

EP1841142A1|2006-03-27|2007-10-03|Matsushita Electric Industries Co., Ltd.|Sleep-state and service initiation for mobile terminal|

---

US20080039096A1|2006-03-28|2008-02-14|Nokia Corporation|Apparatus, method and computer program product providing secure distributed HO signaling for 3.9G with secure U-plane location update from source eNB|

---

US8068846B2|2006-03-28|2011-11-29|Alcatel Lucent|Method of assigning a mobile unit to a tracking area based on a location update frequency|

---

WO2007144762A2|2006-06-16|2007-12-21|Nokia Corporation|Changing lte specific anchor with simple tunnel switching|

---

KR101340367B1|2006-06-21|2013-12-11|삼성전자주식회사|Method for Paging Terminal of RRC connected state in LTE System|

---

JP4983283B2|2006-08-17|2012-07-25|日本電気株式会社|Mobile communication system, core network device, and mobile communication terminal|

---

RU2441347C2|2006-10-31|2012-01-27|Квэлкомм Инкорпорейтед|Method for handoff between base stations|

---

US7991409B2|2007-03-05|2011-08-02|Intel Corporation|Wake-on-WLAN for stationary wireless stations|

---

WO2008123456A1|2007-03-29|2008-10-16|Kyocera Corporation|Mobile radio device|

---

US8396469B2|2007-05-31|2013-03-12|Telecom Italia S.P.A.|Association of a mobile user identifier and a radio identifier of a mobile phone|

---

US8543139B2|2007-08-03|2013-09-24|Airvana Llc|Distributed network|

---

JP4773565B2|2007-10-29|2011-09-14|株式会社エヌ・ティ・ティ・ドコモ|Mobile communication system, home base station and mobile station|

---

US8472972B2|2007-11-21|2013-06-25|International Business Machines Corporation|Device, system, and method of physical context based wireless communication|

---

CN103763681B|2007-12-17|2017-09-29|Tcl通讯科技控股有限公司|Gsm|

---

JP4907579B2|2008-03-24|2012-03-28|株式会社エヌ・ティ・ティ・ドコモ|Paging signal transmission method, radio base station, and network device|

---

US8135392B2|2008-06-06|2012-03-13|Apple Inc.|Managing notification service connections and displaying icon badges|

---

US9516116B2|2008-06-06|2016-12-06|Apple Inc.|Managing notification service connections|

---

US8824305B2|2008-07-09|2014-09-02|Qualcomm Incorporated|Paging schemes for local network access|

---

CN102106133B|2008-07-24|2016-05-11|爱立信电话股份有限公司|For with the Lawful intercept of the 2G/3G equipment of the grouping system interworking of evolution|

---

CN104579617B|2008-10-22|2019-06-28|夏普株式会社|The method of mobile station equipment and its method of execution, base station equipment and its execution|

---

US8897277B2|2008-11-07|2014-11-25|Kyocera Corporation|Device beacon for handoff management of handoffs to base stations|

---

US8233875B2|2008-11-07|2012-07-31|Kyocera Corporation|Device beacon for handoff management of handoffs to access nodes|

---

US20100118834A1|2008-11-07|2010-05-13|Amit Kalhan|Device beacon for communication management for peer to peer communications|

---

CN101477575A|2009-01-22|2009-07-08|中兴通讯股份有限公司|Multimedia information storing and playing method and apparatus|

---

US9839001B2|2009-03-23|2017-12-05|Apple Inc.|Methods and apparatus for optimizing paging mechanisms and publication of dynamic paging mechanisms|

---

US8930438B2|2009-06-17|2015-01-06|Apple Inc.|Push-based location update|

---

EP2449836B1|2009-06-30|2017-02-15|Orange|Method and nodes for activating a communication terminal|

---

JP5266163B2|2009-08-24|2013-08-21|株式会社日立製作所|Information providing method, information providing server for executing the method, service providing system including the information providing server, wireless communication terminal receiving information provided, and operation program thereof|

---

US8504902B2|2009-09-09|2013-08-06|Apple Inc.|Methods and apparatus for virtually connected communication modes|

---

US8611895B2|2009-10-30|2013-12-17|Apple Inc.|Methods for optimizing paging mechanisms using device context information|

---

US8898453B2|2010-04-29|2014-11-25|Blackberry Limited|Authentication server and method for granting tokens|

---

JP2011250092A|2010-05-26|2011-12-08|Sony Corp|Wireless communication device, base station, wireless communication method, and wireless communication system|

---

US8942771B1|2010-11-02|2015-01-27|Google Inc.|Dynamic data refresh for mobile device applications|

---

WO2012098481A1|2011-01-20|2012-07-26|Koninklijke Philips Electronics N.V.|Authentication and authorization of cognitive radio devices|

---

US8560722B2|2011-03-18|2013-10-15|International Business Machines Corporation|System and method to govern sensitive data exchange with mobile devices based on threshold sensitivity values|

---

US20120262335A1|2011-04-15|2012-10-18|Qualcomm Incorporated|Network coverage and demand maps|

---

US9749435B2|2012-01-20|2017-08-29|Apple Inc.|Proxy-based push service|

---

US9060273B2|2012-03-22|2015-06-16|Blackberry Limited|Authentication server and methods for granting tokens comprising location data|

---

US8676159B1|2012-09-28|2014-03-18|Juniper Networks, Inc.|Mobile network interoperability|

---

US9148765B2|2012-11-27|2015-09-29|Alcatel Lucent|Push service without persistent TCP connection in a mobile network|

---

US9027109B2|2013-02-28|2015-05-05|Citibank, N.A.|Methods and systems for accessing account information electronically|

---

US9495558B2|2013-03-26|2016-11-15|Google Inc.|Systems, methods, and computer program products for managing access control|US9451463B1|2007-11-15|2016-09-20|Open Invention Network, Llc|System, method, and computer-readable medium for mobile-terminated SMS message delivery for a mobile station attached with an IP-femtocell system|

---

WO2009064576A1|2007-11-15|2009-05-22|Airwalk Communications, Inc.|System, method, and computer-readable medium for user equipment registration and authentication processing by a femtocell system|

---

US8611895B2|2009-10-30|2013-12-17|Apple Inc.|Methods for optimizing paging mechanisms using device context information|

---

US9137840B2|2010-01-07|2015-09-15|Lg Electronics Inc.|Method for managing component carrier setting information and a device for the same|

---

US8463301B2|2010-03-31|2013-06-11|Qualcomm Incorporated|Methods and apparatus for paging in wireless communication networks|

---

EP2481228B1|2010-05-11|2015-04-15|NEC Europe Ltd.|Method for handling failure of a mme in an evolved packet system|

---

US8849317B2|2010-06-21|2014-09-30|Alcatel Lucent|Method for paging legacy and advanced access terminals|

---

US8649326B2|2010-07-06|2014-02-11|Htc Corporation|Method of handling capability information of a mobile device and related communication device|

---

US10250678B2|2010-07-07|2019-04-02|Qualcomm Incorporated|Hybrid modes for peer discovery|

---

JP4767357B1|2010-07-30|2011-09-07|株式会社エヌ・ティ・ティ・ドコモ|Calling method, core network device, radio access network device, and gateway device|

---

JP6680866B2|2015-08-24|2020-04-15|ビート インク|Method and system for generating mechanical beats|

---

WO2012177084A2|2011-06-23|2012-12-27|엘지전자 주식회사|Method and apparatus for transmitting broadcasting message in wireless access system supporting m2m environment|

---

BR112014007959A2|2011-10-03|2017-06-13|Intel Corp|mechanisms for device to device communication|

---

GB2497939B|2011-12-22|2017-01-04|Sca Ipla Holdings Inc|Telecommunications apparatus and methods|

---

US9749435B2|2012-01-20|2017-08-29|Apple Inc.|Proxy-based push service|

---

US8700059B1|2012-04-26|2014-04-15|Sprint Spectrum L.P.|Selecting a carrier|

---

EP2883382B1|2012-08-09|2018-10-10|Telefonaktiebolaget LM Ericsson |Method and apparatus to support new special sub-frame in legacy wireless communication network|

---

CN104041153B|2012-12-31|2019-02-12|华为技术有限公司|Motion management method and equipment|

---

EP2954742B1|2013-02-07|2020-04-08|Telefonaktiebolaget LM Ericsson |Conditional paging|

---

US9125167B1|2013-04-09|2015-09-01|Sprint Spectrum L.P.|System and method of increasing paging accuracy|

---

GB2513181A|2013-04-19|2014-10-22|Sony Corp|Telecommunications apparatus and methods|

---

GB2513182A|2013-04-19|2014-10-22|Sony Corp|Telecommunications apparatus and methods|

---

JP5648165B2|2013-06-10|2015-01-07|株式会社ベイビッグ|Wireless terminal, wireless communication system, and wireless communication method|

---

US9826480B2|2013-07-26|2017-11-21|Qualcomm Incorporated|Paging a user equipment over unlicensed spectrum|

---

US9474000B2|2013-07-31|2016-10-18|Qualcomm Incorporated|Handover and reselection searching using predictive mobility|

---

US20150038140A1|2013-07-31|2015-02-05|Qualcomm Incorporated|Predictive mobility in cellular networks|

---

EP3036950A2|2013-08-21|2016-06-29|Telefonaktiebolaget LM Ericsson |Paging in coverage extension mode|

---

CN105264987B|2014-01-29|2019-11-12|华为技术有限公司|The indicating means of MPS process enhancement mode and base station|

---

CN106465332B|2014-05-09|2019-10-29|寰发股份有限公司|Paging transmission and received Enhancement Method and user equipment|

---

US9485664B2|2014-06-19|2016-11-01|Intel Corporation|Idle mode cell selection for licensed shared access|

---

EP3190854B1|2014-09-05|2019-04-10|LG Electronics Inc.|Transmitting data on unlicensed band and base station therefor|

---

CN107251626B|2015-03-02|2020-02-14|华为技术有限公司|Paging method, paging device, core network device, base station and paging system|

---

JPWO2016140275A1|2015-03-03|2017-12-14|京セラ株式会社|Mobile communication method, network device, and base station|

---

US10045394B2|2015-05-04|2018-08-07|Qualcomm Incorporated|Techniques for paging in extended discontinuous reception|

---

US11082321B1|2015-06-15|2021-08-03|Amazon Technologies, Inc.|Gossip-style database monitoring|

---

CN108370594B|2015-12-31|2020-09-25|华为技术有限公司|Data transmission processing method, user equipment and base station|

---

KR102362043B1|2016-01-05|2022-02-11|삼성전자주식회사|Method and apparatus for transmitting and receiving data in wireless communication system|

---

WO2017207014A1|2016-05-30|2017-12-07|Sony Mobile Communications Inc.|Conditional data transmission based on the quality of the radio channel|

---

WO2018008925A1|2016-07-05|2018-01-11|엘지전자 주식회사|Method and apparatus for notifying mme of unsuccessful paging for terminal|

---

US10148513B1|2017-05-10|2018-12-04|International Business Machines Corporation|Mobile device bandwidth consumption|

---

US11122500B2|2018-01-16|2021-09-14|Cisco Technology, Inc.|Using a blockchain for optimized fast-secure roaming on WLANs|

---

KR102089276B1|2018-10-31|2020-04-20|에스케이텔레콤 주식회사|Base station amd uplink power control method|

---

US11140657B2|2020-02-12|2021-10-05|Charter Communications Operating, Llc|Repetition of paging notifications in wireless networks|

---

CN111384993A|2020-03-20|2020-07-07|钟杰东|ZJD baseband chip and ZJD baseband chip management system|

法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

---

2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

---

2020-02-18| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04W 68/02 Ipc: H04W 48/16 (2009.01), H04W 68/02 (2009.01), H04W 4 |

---

2021-07-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

---

2021-08-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/10/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |

优先权:

---

申请号 | 申请日 | 专利标题

---

US12/610,145|2009-10-30|

---

US12/610,145|US8611895B2|2009-10-30|2009-10-30|Methods for optimizing paging mechanisms using device context information|

---

PCT/US2010/054299|WO2011053649A2|2009-10-30|2010-10-27|Methods and apparatus for optimizing paging mechanisms using device context information|

---