Terminal device, wireless communication device, wireless communication method and computer program

Abstract

The present disclosure relates to a terminal device, a wireless communication device, a wireless communication method, and a computer program. In order to provide a wireless communication device, the wireless communication device can be used to effectively perform paging of a terminal device to be paged in a system in which the terminal device behaves as a cell. A terminal device is configured with: an acquisition unit for acquiring a paging message from a base station; and a control unit for performing paging for one or more other terminal devices that perform wireless communication with the base station through the terminal device based on the paging message acquired by the acquisition unit.

Description

[0001] This application is a divisional application of the PCT application entering the Chinese national phase, with an international filing date of March 11, 2016, national application number 201680019241.8, and invention name “Terminal equipment, wireless communication equipment, wireless communication method and computer program”. Technical Field

[0002] The present disclosure relates to a terminal device, a wireless communication device, a wireless communication method, and a computer program. Background Art

[0003] A technology called paging has been used in the Long Term Evolution (LTE) platform (see, for example, Patent Document 1). Paging is a technology in which a network side (eNodeB) mainly calls a terminal device in an idle mode and is used for incoming data or audio, giving emergency notifications about disaster information, etc.

[0004] Reference List

[0005] Patent Literature

[0006] Patent Document 1: JP 2012-5090A Summary of the invention

[0007] Technical issues

[0008] In the past, in paging, only the terminal device was in idle mode in communication with the eNodeB. However, assuming that in a system where the terminal device plays the role of a cell, the terminal device playing the role of the cell and the terminal device as the paging target can both be in idle mode. A new paging mechanism that adapts to this system environment is needed.

[0009] Therefore, the present disclosure proposes novel and improved terminal devices, wireless communication devices, wireless communication methods, and computer programs that enable paging to be efficiently performed for a terminal device that is a paging target in a system in which another terminal device functions like a cell.

[0010] Solutions to the Problem

[0011] According to the present disclosure, a terminal device is provided, comprising: an acquisition unit configured to acquire a paging message from a base station; and a control unit configured to perform paging via the terminal device on one or more other terminal devices performing wireless communication with the base station based on the paging message acquired by the acquisition unit.

[0012] In addition, according to the present disclosure, a wireless communication device is provided, including: a control unit, configured to perform paging with respect to a first terminal device and a second terminal device that performs wireless communication via the first terminal device; and an acquisition unit, configured to acquire information for timing of paging performed by the control unit with respect to the second terminal device independently of the timing regulations of the paging with respect to the first terminal device.

[0013] In addition, according to the present disclosure, there is provided a wireless communication method including: acquiring a paging message from a base station; and performing paging via the terminal device with respect to another terminal device performing wireless communication with the base station based on the acquired paging message.

[0014] In addition, according to the present disclosure, a wireless communication method is provided, including: performing paging on a first terminal device and a second terminal device that performs wireless communication via the first terminal device; and obtaining information for specifying the timing of paging on the second terminal device independently of the timing of paging on the first terminal device.

[0015] In addition, according to the present disclosure, there is provided a computer program causing a computer to execute: acquiring a paging message from a base station; and performing paging with respect to another terminal device performing wireless communication with the base station via the terminal device based on the acquired paging message.

[0016] In addition, according to the present disclosure, a computer program is provided, causing a computer to execute: performing paging with respect to a first terminal device and a second terminal device performing wireless communication via the first terminal device; and obtaining information for specifying the timing of paging with respect to the second terminal device independently of the timing of paging with respect to the first terminal device.

[0017] Advantageous Effects of the Invention

[0018] According to the present disclosure described above, a novel and improved terminal device, wireless communication device, wireless communication method, and computer program can be provided that enable paging to be efficiently performed for a terminal device that is a paging target in a system in which another terminal device functions like a cell.

[0019] Note that the above effects are not necessarily limitative. Together with or in place of the above effects, any effect described in this specification or other effects that can be grasped from this specification can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an explanatory diagram for describing small cell enhancement (SCE).

[0021] Figure 2 is an explanatory diagram showing an example of a localized network (LN).

[0022] Figure 3 is an explanatory diagram showing an overview of paging on the LTE platform.

[0023] Figure 4 is a flow chart showing the operational flow of paging on an LTE platform.

[0024] Figure 5 is an explanatory diagram showing a lookup table in the case of FDD.

[0025] Figure 6 is an explanatory diagram showing a lookup table in the case of TDD.

[0026] Figure 7 : is an explanatory diagram showing an example of a schematic configuration of a communication system 1 according to an embodiment of the present disclosure.

[0027] Figure 8 is a block diagram showing an example of a configuration of the terminal device 100 according to an embodiment of the present disclosure.

[0028] Fig. 9 is a block diagram showing an example of a functional configuration of a base station 200 according to an embodiment of the present disclosure.

[0029] Fig.10 is a block diagram showing an example of a functional configuration of the control entity 300 according to an embodiment of the present disclosure.

[0030] Fig.11 It is an explanatory diagram showing a combination of states.

[0031] Fig.12 : is a sequence diagram showing an example of the operation of the communication system 1 according to the embodiment of the present disclosure.

[0032] Fig.13 : is a sequence diagram showing an example of the operation of the communication system 1 according to the embodiment of the present disclosure.

[0033] Fig.14 It is an explanatory diagram showing the structure of a stipulated S1AP: paging message.

[0034] Fig.15 It is an explanatory diagram showing the structure of a defined RRC: paging message.

[0035] Fig.16 is a block diagram showing an example of a schematic configuration of a server 700 to which the technology of the present disclosure can be applied.

[0036] Fig.17 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied.

[0037] Fig.18is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied.

[0038] Fig.19 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied.

[0039] Fig. 20 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology of the present disclosure can be applied. DETAILED DESCRIPTION

[0040] Hereinafter, one or more preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In this specification and the accompanying drawings, constituent elements having substantially the same function and structure are denoted by the same reference numerals, and repeated description of these constituent elements is omitted.

[0041] Note that the description will be provided in the following order.

[0042] 1. Embodiments of the present disclosure

[0043] 1.1. Background

[0044] 1.2. Configuration example

[0045] 1.2.1. Example of configuration of communication system

[0046] 1.2.2. Example of terminal device configuration

[0047] 1.2.3. Example of base station configuration

[0048] 1.2.4. Example of configuration of control entity

[0049] 1.3. Operation examples

[0050] 2. Application Examples

[0051] 3. Conclusion

[0052] <1. Embodiments of the present disclosure>

[0053] [1.1. Background]

[0054] First, before describing the embodiments of the present disclosure in detail, the background of the embodiments of the present disclosure will be described.

[0055] The recent wireless communication environment is facing a rapid increase in data traffic. As a countermeasure to the rapid growth of future traffic, 3GPP has currently discussed small cell enhancement, which is to deploy small cell base stations at a high density within the range of macro cell base stations to increase the density of the network and disperse the traffic. Figure 1It is an explanatory diagram for describing small cell enhancement (SCE). It is assumed that a high frequency band higher than or equal to 3 GHz is used as a frequency band for small cells (such as indoor cells) in SCE and SCE aims to increase overall capacity by deploying small cell base stations in a macro area and offloading data traffic to the small cell side.

[0056] In addition, as a proposal for 5G which is a next-generation wireless communication scheme, an ultra-dense network has been proposed in which small cell base stations with narrow coverage are deployed within the range of macro cell base stations at extremely high density using higher frequencies, etc.

[0057] However, when deploying small cells at such a high density, there are many practical problems that need to be solved, including ensuring space for deploying base stations, expansion of network power consumption, increase in equipment costs, maintenance costs, etc. Therefore, it is expected that a network that can set flexible countermeasures at a lower cost according to network traffic conditions while handling the rapid growth of traffic is desired.

[0058] Therefore, localized network management (LNM) has been proposed, in which a user equipment (UE) with the function of a small cell base station builds a virtual small cell network in an area where a small cell base station does not exist in a heterogeneous network environment. In LNM, virtual small cells can be flexibly deployed at low cost according to the state of the network.

[0059] Figure 2 1 is an explanatory diagram showing an example of a localized network (LN). The LN is composed of a terminal that can be a virtual small cell (hereinafter also referred to as a "master terminal") and a terminal connected to the master terminal (hereinafter also referred to as a "slave terminal"). The LN includes a backhaul line (on which a macrocell base station and the master terminal communicate with each other) and an access line (on which the master terminal and the slave terminal communicate with each other). The backhaul line can be wireless or wired.

[0060] When the master terminal transmits and receives on the backhaul line and the access line on the LN at the same time, as long as isolation is not ensured, the transmission signal usually roams around the receiver of the terminal, and thus interference problems arise. Therefore, the master terminal performs communication on the backhaul line and the access line in a time-division manner on the LN. When communication is performed on the backhaul line and the access line in a time-division manner, ensuring a buffer area in the master terminal or waiting time on the terminal side is a considerable problem.

[0061] As a means of ensuring a buffer in the master terminal and solving the waiting time on the slave terminal side, a full-duplex localized network (FDLN) has been proposed that enables simultaneous transmission / reception on the backhaul line and the access line by applying full-duplex communication to the master terminal. Thus, simultaneous transmission / reception based on full-duplex communication using the same frequency resources is possible, so the buffer area in the master terminal can be ensured and the waiting time on the slave terminal side can be solved, and thus it can be expected to increase the capacity of the entire network.

[0062] A technology called paging has been used on the LTE platform. Paging is a technology in which a terminal device in an idle (IDLE) mode is mainly called by the network side (eNodeB) and is used for incoming data or audio, giving emergency notifications about disaster information, and the like.

[0063] Figure 3 : is an explanatory diagram showing an overview of paging on the LTE platform. Figure 4 is a flow chart showing the operational flow of paging on an LTE platform.

[0064] like Figure 3 and Figure 4 As shown, paging is performed by notifying the UE of a paging message from a mobility management entity (MME) on the network side via the eNodeB. The operation performed from the network side to the eNodeB is called S1AP: Paging, and the operation performed from the eNodeB to the UE is called RRC: Paging.

[0065] The MME sends an S1AP: paging signal to multiple tracking areas (TA or location registration areas), and each eNodeB creates an RRC: paging signal based on the received signal and notifies the UE of the signal. In the case where the UE finds a paging signal destined for itself, the UE transfers to the RACH process and transitions to the RRC connected state for the eNodeB. Note that timer T3413 is set in paging on the LTE platform.

[0066] In order to accurately receive paging, the UE must properly read the paging information sent from the network side. However, for the signal from the network side, the UE consumes a lot of power to stay on standby. Figure 4 The intermittent reception scheme called discontinuous reception (DRX) shown in FIG. 1 is effective for receiving paging signals on the LTE platform.

[0067] Will use Figure 4Briefly describe the existing paging processing. The MME starts timer T3413 and sends S1AP: Paging to the eNodeB. In addition, for the RRC: Paging message from the eNodeB, the UE periodically stands by based on the DRX cycle. The eNodeB sends an RRC: Paging message to the eNodeB according to the DRX cycle. When receiving the RRC: Paging message from the eNodeB, the UE starts a random access procedure based on the RRC: Paging message to establish communication with the eNodeB. The UE sends an RRC connection request to the eNodeB, and the eNodeB sends an RRC connection establishment message to the UE. In response to reception of the RRC connection establishment message, the UE sends an RRC connection establishment complete message to the eNodeB. When the RRC connection establishment complete message is received from the UE, the eNodeB sends a service request to the MME. When the MME receives the service request from the eNodeB, the MME stops timer T3413.

[0068] DRX is a mechanism for performing intermittent reception with a uniform period. The default value of the interval is reported in SIB2 and is set within the following range.

[0069] {32,64,128,256}[radio frame]

[0070] The value of this interval can also be requested by the UE to the network. In this case, the same value can be selected and the UE can notify the network of this value using an "Attach Request" or "Tracking Area Update Request". Note that in the case where the default value and the UE's requested value are set, the smaller value between these values ​​is used.

[0071] Based on information such as the determined paging interval and UE_ID, the UE sets a frame (paging frame or PF) for receiving a paging signal. A system frame number (SFN) of the PF is set by calculation using the following formula.

[0072] SFN mod T=(T / N)×(UE_ID mod N)

[0073] Here, T represents the DRX cycle of the UE receiving the paging message and is expressed in the number of radio frames. N represents the minimum value between T and nB. nB represents a value selected from 4T, 2T, T, T / 2, T / 4, T / 8, T / 16, and T / 32.

[0074] In addition, UE_ID is obtained using the following formula.

[0075] UE_ID = IMSI mod 1024

[0076] Here, IMSI stands for International Mobile Subscriber Identity (IMSI), and the UE knows its IMSI. The UE notifies a Mobility Management Entity (MME) of the UE's IMSI, and the MME notifies the eNodeB of the IMSI or a UE_ID calculated by the MME.

[0077] Next, the UE determines the subframe (paging occasion or PO) in which the paging signal is received in the PF obtained as described above. The subframe number of the PO is obtained as follows. First, the index i_s is obtained using the following formula.

[0078] i_s=floor(UE_ID / N)mod Ns

[0079] Here, Ns represents the maximum value between 1 and nB / T. Figure 5 is an explanatory diagram showing a lookup table in the case of FDD, Figure 6 is an explanatory diagram showing a lookup table in the case of TDD.

[0080] Here, Ns is uniquely set with respect to the cell, and the larger the value of Ns is, the higher the paging capacity becomes. Since the synchronization signal and system information are included in subframes 0 and 5, it is impossible to set MBSFN subframes. Therefore, if paging information is also included in these subframes, the regulatory impact is minimal.

[0081] However, since the subframe has no resources, it is difficult for a cell with low paging capacity (narrowband) to include subframes 0 and 5 with paging information. Therefore, there is a tendency to allocate subframes 4 and 9, in particular, to a cell with low paging capacity in addition to subframes 0 and 5 to perform paging. It is possible to read the synchronization signal and system information immediately after paging using subframes 4 and 9, which is efficient for UE. At the same time, subframes 0 and 5 can be allocated to a cell (a cell with high paging capacity) that has considerable spare subframes 0 and 5 to perform paging.

[0082] In the case of TDD, it is necessary to perform mapping on at least the DL subframe, so subframes 0 and 5 set for DL ​​are always prioritized. In this case, conflicts between paging information and system information are also allowed. Cells with high paging capacity can use subframes 1 and 6 for paging attachment. Subframe 1 is a special subframe, and subframe 6 is a special subframe or DL ​​subframe. Since special subframes use a restricted PDCCH area, it is impossible for cells with low paging capacity to use special subframes for paging. Therefore, special subframes are only allocated to cells with high paging capacity.

[0083] As described above, it is possible to enable a terminal device to effectively receive a paging signal by adopting DRX on the LTE platform.

[0084] In past paging, the terminal device was the only entity that could be in idle mode in communication with the eNodeB. However, in a system (such as an LMN) in which the terminal device acts like a cell, both the terminal device playing the role of the cell and the terminal device that is the target of paging may be in idle mode. A new paging mechanism is needed that adapts to the system environment in which the terminal device acts like a cell.

[0085] Therefore, the inventors of the present disclosure have carefully studied a technique that enables paging to be effectively performed for a terminal device that is a paging target in a system in which another terminal device functions like a cell after considering the above background. Therefore, the inventors of the present disclosure have invented a technique that enables paging to be effectively performed for a terminal device that is a paging target in a system in which another terminal device functions like a cell.

[0086] The background of the embodiment of the present disclosure has been described above. Next, the embodiment of the present disclosure will be described in detail.

[0087] (1.2. Configuration example)

[0088] (1.2.1. Example of Configuration of Communication System)

[0089] First, a schematic configuration of a communication system 1 according to an embodiment of the present disclosure will be described. Figure 7 1 is an explanatory diagram showing an example of a schematic configuration of a communication system 1 according to an embodiment of the present disclosure. Figure 7 , the communication system 1 includes terminal devices 100a and 100b, a base station 200, and a control entity 300. The communication system 1 is a system conforming to a communication standard such as LTE, LTE-Advanced, or equivalent thereto.

[0090] The terminal device 100a performs wireless communication with the base station 200 and the terminal device 100b. In addition, the terminal device 100b performs wireless communication with the base station 200 and the terminal device 100a. The terminal device 100a and the terminal device 100b perform intermittent reception operation. The terminal device 100a and the terminal device 100b perform DRX operation, for example, in idle mode. Specifically, for example, the terminal device 100a and the terminal device 100b perform normal reception operation at the paging occasion of the terminal device 100a and the terminal device 100b, and stop at least part of the reception operation during other time periods. When at least part of the reception operation is stopped, for example, the terminal device 100a and the terminal device 100b do not supply power to at least some of their circuits related to the reception operation. Note that the terminal device 100a and the terminal device 100b can also perform DRX operation even in the connected mode.

[0091] The base station 200 performs wireless communication with one or more terminal devices including the terminal device 100a. The base station 200 may be a base station of a macro cell (i.e., a macro base station) or a base station of a small cell (i.e., a small base station). In addition, the base station 200 performs paging. Specifically, the base station 200 sends a paging message to the terminal device when necessary in each segment of the paging segment that is repeated on the time axis at the paging opportunity for the terminal device.

[0092] According to each embodiment of the present disclosure, the control entity 300 performs control. For example, the control entity 300 is an existing or new core network node. Alternatively, the control entity 300 may be a base station. As an example, in the case where the base station 200 is a small base station, the control entity 300 may be a macro base station.

[0093] In the description provided below, it will be assumed that the terminal device 100a is a master terminal and the terminal device 100b is a slave terminal. That is, the terminal device 100a is a UE having the function of a small cell base station, and the terminal device 100a and the terminal device 100b constitute a virtual small cell network (LN). In addition, the communication system 1 according to an embodiment of the present disclosure performs processing of paging from the base station 200 to the terminal device 100a, and processing of paging from the base station 200 to the terminal device 100b via the terminal device 100a. Note that although in Figure 7 , but the present disclosure is not limited to this case, and multiple slave terminals may exist for one master terminal. In addition, the terminal device 100b as a slave terminal may or may not exist within the coverage of the base station 200.

[0094] A system in which the terminal device 100a as a master terminal functions like a cell (eg Figure 7 In the communication system 1) shown in , it is assumed that the terminal device 100a playing the role of a cell and the terminal device 100b being a subordinate terminal are both in idle mode. In this embodiment, even when the terminal device 100a and the terminal device 100b are in idle mode, paging from the base station 200 to the terminal device 100b is efficiently performed.

[0095] The communication system 1 according to the present embodiment performs a process "proxy paging reception" to efficiently perform paging from the base station 200 to the terminal device 100b. The proxy paging reception is a process in which the terminal device 100a as the master terminal uniformly receives paging information transmitted from the base station 200 to the terminal device 100b as the slave terminal. The terminal device 100a that receives the paging information transmitted to the terminal device 100b performs a paging process for the terminal device 100b.

[0096] By adopting the mechanism of proxy paging reception, the communication system 1 according to the present embodiment can efficiently perform paging for the terminal device 100b from the base station 200 even when the terminal devices 100a and 100b are in idle mode. The mechanism of proxy paging reception will be described in detail below.

[0097] Already used above Figure 7 An example of a schematic configuration of the communication system 1 according to an embodiment of the present disclosure is described. Next, an example of a configuration of the terminal device 100a and the terminal device 100b (also collectively referred to as "terminal device 100") according to an embodiment of the present disclosure will be described.

[0098] (1.2.2. Example of terminal device configuration)

[0099] Figure 8 1 is a block diagram showing an example of a configuration of a terminal device 100 according to an embodiment of the present disclosure. Figure 8 The terminal device 100 includes an antenna unit 110, a wireless communication unit 120, a storage unit 130 and a processing unit 140.

[0100] (Antenna unit 110)

[0101] The antenna unit 110 transmits the signal output by the wireless communication unit 120 as radio waves to the space. In addition, the antenna unit 110 converts the radio waves in the space into signals and outputs the signals to the wireless communication unit 120.

[0102] (Wireless Communication Unit 120)

[0103] The wireless communication unit 120 receives a signal. For example, the wireless communication unit 120 receives a downlink signal from a base station and transmits an uplink signal to the base station.

[0104] (Storage unit 130)

[0105] The storage unit 130 temporarily or permanently stores programs and data for the operation of the terminal device 100. In the present embodiment, in the case where the terminal device 100 is a master terminal, the storage unit 130 stores a list of slave terminals. The list of slave terminals stored in the storage unit 130 is used in the processing performed by the control unit 143, for example, the processing of specifying the timing of paging to the terminal device to be described below.

[0106] (Processing unit 140)

[0107] The processing unit 140 provides various functions of the terminal device 100. The processing unit 140 includes an information acquisition unit 141 and a control unit 143. Note that in addition to these components, the processing unit 140 may also include other components. That is, in addition to the operations of the components, the processing unit 140 may also perform other operations.

[0108] (Information Acquisition Unit 141)

[0109] The information acquisition unit 141 acquires various information from a signal obtained by the radio wave received by the antenna unit 110. In the case where the terminal device 100 is a master terminal in the present embodiment, the information acquisition unit 141 acquires a paging signal to the terminal device and a paging signal to the slave terminal transmitted from the base station 200. In addition, in the case where the terminal device 100 is a slave terminal, the information acquisition unit 141 acquires a paging signal to the slave terminal transmitted from the base station 200 or the master terminal.

[0110] (Control Unit 143)

[0111] The control unit 143 controls the operation of the terminal device 100. In particular, in the present embodiment, in the case where the terminal device 100 is a master terminal, the control unit 143 performs a paging process with the base station 200 or performs a paging process with a slave terminal. In addition, in the case where the terminal device 100 is a slave terminal, the control unit 143 performs a paging process with the terminal device 100a or performs a paging process with the master terminal based on a paging signal sent from the master terminal to the slave terminal. The control unit 143 performs a DRX operation in an idle mode, for example, and receives a paging message sent from the base station 200 (or, in the case where the terminal device 100 is a slave terminal, from the terminal device 100a) through the DRX operation.

[0112] In the case where the terminal device 100 is a master terminal, the control unit 143 performs a process of specifying the timing of paging to the slave terminal. In the existing paging process, a paging file is specified based on the ID of the terminal. However, if the mechanism of the existing paging process is applied to the paging process for the slave terminal, the master terminal and the slave terminal are individually assigned paging files, which deteriorates the efficiency. In particular, in the case where the master terminal performs proxy paging reception, the master terminal must also read the paging message for the slave terminal, so an effective mechanism that can uniformly and centrally receive the paging message for the slave terminal is required.

[0113] Therefore, the present embodiment specifies a new paging timing (PF / PO) to a slave terminal belonging to a master terminal, and the control unit 143 determines the paging timing to the slave terminal belonging to the master terminal. For example, the control unit 143 may set the same paging timing for all slave terminals, set a differentiated PO but the same PF for all slave terminals, or set a differentiated PF for all slave terminals. Since the control unit 143 determines the timing of paging to the slave terminal belonging to the master terminal, the terminal device 100 as the master terminal can efficiently perform paging for the slave terminal. Note that the timing of paging to the slave terminal belonging to the master terminal may be determined by the base station 200 instead of the terminal device 100 as the master terminal. In the case where the base station 200 determines the timing of paging to the slave terminal belonging to the master terminal, the control unit 143 sends information for identifying the master terminal and information for identifying the slave terminal to the base station 200.

[0114] An example of the functional configuration of the terminal device 100 according to an embodiment of the present disclosure has been described above. Next, an example of the functional configuration of the base station 200 according to an embodiment of the present disclosure will be described.

[0115] (1.2.3. Base station configuration example)

[0116] Fig. 9 2 is a block diagram showing an example of a functional configuration of a base station 200 according to an embodiment of the present disclosure. Fig. 9 As shown in , the base station 200 according to an embodiment of the present disclosure includes an antenna unit 210 , a wireless communication unit 220 , a network communication unit 230 , a storage unit 240 , and a processing unit 250 .

[0117] (Antenna unit 210)

[0118] The antenna unit 210 transmits the signal output by the wireless communication unit 220 as radio waves to the space. In addition, the antenna unit 210 converts the radio waves of the space into a signal and outputs the signal to the wireless communication unit 220.

[0119] (Wireless Communication Unit 220)

[0120] The wireless communication unit 220 transmits and receives signals. For example, the wireless communication unit 220 transmits a downlink signal to a terminal device and receives an uplink signal from the terminal device.

[0121] (Network Communication Unit 230)

[0122] The network communication unit 230 sends and receives information. For example, the network communication unit 230 sends information to another node and receives information from another node. The other node includes, for example, a core network and another base station. As an example, the other node includes the control entity 300.

[0123] (Storage unit 240)

[0124] The storage unit 240 temporarily or permanently stores programs and data necessary for the operation of the base station 200 .

[0125] (Processing unit 250)

[0126] The processing unit 250 provides various functions of the base station 200. The processing unit 250 includes an information acquisition unit 251 and a control unit 253. Note that in addition to these constituent elements, the processing unit 250 may also include other constituent elements. That is, in addition to the operations of the constituent elements, the processing unit 250 may also perform other operations.

[0127] (Information Acquisition Unit 251)

[0128] The information acquisition unit 251 acquires information or a program for the operation of the base station 200 or information received from another node. The information acquisition unit 251 may acquire information or a program for the operation of the base station 200 from the storage unit 240. In this embodiment, the information acquisition unit 251 acquires a paging signal of S1AP: Paging sent from the control entity 300.

[0129] (Control Unit 253)

[0130] The control unit 253 controls the operation of the base station 200. In the present embodiment, the control unit 253 performs paging for the terminal device. For example, the control unit 253 generates a paging message to be sent at each paging opportunity. The paging message sent at each paging opportunity is a paging message to the terminal device for the paging opportunity. In addition, the control unit 253 sends the generated paging message via the wireless communication unit 220 at each paging opportunity. The control unit 253 generates a paging signal for, for example, RRC: paging for the terminal device 100a, and causes the paging signal for RRC: paging to be output from the antenna unit 210 via the wireless communication unit 220.

[0131] In addition, when it is necessary for the terminal device to reacquire system information, for example, the control unit 253 performs paging for the terminal device. In addition, the control unit 253 performs paging for the terminal device according to a request from another device. The other device is, for example, a core network node (e.g., the control entity 300), and the request is a paging message (e.g., an S1AP paging message) from the other device.

[0132] The control unit 253 may set the timing of paging to the slave terminal belonging to the master terminal to the timing determined by the control unit 143 of the above-mentioned terminal device 100. In addition, the control unit 253 may perform a process of determining the timing of paging to the slave terminal belonging to the master terminal, which may be performed by the control unit 143 of the above-mentioned terminal device 100. When the control unit 253 determines the timing of paging to the slave terminal belonging to the master terminal, the information acquisition unit 251 may acquire information for identifying the master terminal and information for identifying the slave terminal from the terminal device 100 as the master terminal.

[0133] An example of the functional configuration of the base station 200 according to an embodiment of the present disclosure has been described above. Next, an example of the functional configuration of the control entity 300 according to an embodiment of the present disclosure will be described.

[0134] (1.2.4. Example of configuration of control entity)

[0135] Fig.10 is a block diagram showing an example of a functional configuration of a control entity 300 according to an embodiment of the present disclosure. Fig.10 As shown in , the control entity 300 according to an embodiment of the present disclosure includes a communication unit 310 , a storage unit 320 and a processing unit 330 .

[0136] (Communication unit 310)

[0137] The communication unit 310 sends and receives information. For example, the communication unit 310 sends information to another node and receives information from another node. The other node includes, for example, a core network and a base station. As an example, the other node includes the base station 200.

[0138] (Storage unit 320)

[0139] The storage unit 320 temporarily or permanently stores programs and data necessary for the operation of the control entity 300 .

[0140] (Processing unit 330)

[0141] The processing unit 330 provides various functions of the control entity 300. The processing unit 330 includes an information acquisition unit 331 and a control unit 333. Note that in addition to these components, the processing unit 330 may also include other components. That is, in addition to the operations of the components, the processing unit 330 may also perform other operations.

[0142] (Information Acquisition Unit 331)

[0143] The information acquisition unit 331 acquires information for controlling the operation of the entity 300 and information received from another node. The information acquisition unit 331 may acquire information for controlling the operation of the entity 300 and a program from the storage unit 320.

[0144] (Control Unit 333)

[0145] The control unit 333 controls the operation of the control entity 300. The control unit 333 may operate based on the information acquired by the information acquisition unit 331. In this embodiment, the control unit 333 generates a paging signal for S1AP: paging for the base station 200, and causes the paging signal for S1AP: paging to be output from the communication unit 310 at a predetermined timing.

[0146] An example of the functional configuration of the control entity 300 according to the embodiment of the present disclosure has been described above. Next, an example of the operation of the communication system 1 according to the embodiment of the present disclosure will be described.

[0147] (1.3. Operation example)

[0148] Fig.11 1 is an explanatory diagram showing a combination of states of a paging destination, a master terminal, and a slave terminal assumed in the case of a downlink in a communication system 1 according to an embodiment of the present disclosure. Figure 7 In the case of the configuration shown, it is assumed that in the case of the downlink there is Fig.11 There are five combinations of paging destinations, master terminals, and slave terminals shown in FIG.

[0149] The existing paging process of LTE is used in case 1 where the destination of paging is the master terminal. Therefore, the process of case 1 is not described in this embodiment.

[0150] Next, among cases 2 to 4 where the paging destination is a slave terminal, case 3 where the master terminal is in idle mode and the slave terminal is in an RRC connection state with the base station is not described here. The reason is that when the slave terminal is in an RRC connection state with the base station, the slave terminal can communicate directly with the base station.

[0151] Therefore, the following will discuss case 2 in which both the master terminal and the slave terminal are in idle mode, case 4 in which the master terminal is in the RRC connection state and the slave terminal is in idle mode, and case 5 in which both the master terminal and the slave terminal are in the RRC connection state.

[0152] First, for case 2 where both the master terminal and the slave terminal are in the idle mode, an efficient mechanism for performing paging for the slave terminal in the idle mode via the master terminal in the idle mode will be described.

[0153] Fig.12 : is a sequence diagram showing an example of the operation of the communication system 1 according to the embodiment of the present disclosure. Fig.12 The example of the operation of the control entity 300 sending a paging message to the terminal device 100b (slave terminal) in the idle mode to establish a connection is shown. Fig.12 An example of the operation of the communication system 1 according to the embodiment of the present disclosure is described.

[0154] First, as a premise, it is assumed that the terminal device 100a (master terminal) and the terminal device 100b (slave terminal) are in the idle mode at the start of the operation.

[0155] The control entity 300 transmits an S1AP: Paging message to the base station 200 in the target TA (step S101 ). The process of step S101 may be performed by the control unit 333 , for example.

[0156] The base station 200 having received the S1AP: Paging message from the control entity 300 notifies the terminal device 100a of the RRC: Paging message based on the received S1AP: Paging message (step S102). The process of step S102 may be performed by the control unit 253, for example.

[0157] When the wireless communication unit 120 receives the RRC: paging message from the base station 200 via the antenna unit 110 (step S103), the terminal device 100a checks the terminal ID included in the RRC: paging message and searches for the target ID (step S104). The process of step S104 can be performed by, for example, the control unit 143. In step S104, a list of slave terminals previously held by the terminal device 100a is used in the process of searching for the target ID.

[0158] When the terminal device 100a finds the same ID as the terminal ID included in the RRC: paging message from the list of the retained slave terminals, the terminal device establishes a connection with the terminal device 100b (step S105), and establishes a connection with the base station 200 (step S106). The processing of steps S105 and S106 can be performed by, for example, the control unit 143. The order of steps S105 and S106 can be reversed. Since the terminal device 100a establishes a connection with the terminal device 100b, the terminal device 100b transitions from the idle mode to the non-idle mode.

[0159] The method by which the terminal device 100a causes the terminal device 100b to transition from the idle mode to the non-idle mode includes, for example, the following method.

[0160] For example, a new paging mechanism is provided between the terminal device 100a and the terminal device 100b. In the present embodiment, the paging between the terminal device 100a and the terminal device 100b refers to "access link (AL) paging", and AL paging is a notification given from the terminal device 100a to the terminal device 100b by applying the existing paging process. AL paging can enable the terminal device 100a to enable the terminal device 100b to transition from the idle mode to the non-idle mode.

[0161] Furthermore, for paging to the slave terminal via the master terminal, the master-slave paging time should be considered, and if the existing timer T3413 is used, the time may be insufficient.

[0162] Therefore, the present embodiment specifies a new timer for a slave terminal belonging to a master terminal. In addition to the time of the existing timer T3413, the time for the new timer is specified by taking into account the master-slave connection establishment time.

[0163] When the terminal device 100a establishes a connection between the terminal device 100b and the base station 200, the base station 200 replies to the control entity 300 with a response message (step S107). The reply of the response message of step S107 can be performed by, for example, the control unit 253. The connection between the base station 200 and the terminal devices 100a and 100b is established using the reply of the response message of step S107 (step S108).

[0164] Note that if the same ID as the terminal ID included in the RRC: Paging message is not found on the list of slave terminals held in the process of searching for the target ID in step S104, the terminal device 100a does not perform subsequent processing.

[0165] In the case where both the master terminal and the slave terminal are in idle mode in the communication system 1 according to an embodiment of the present disclosure, the master terminal first receives the paging message initially sent to the slave terminal, and then the master terminal transitions the slave terminal to non-idle mode by performing the above series of operations, so that paging processing from the control entity 300 to the slave terminal can be performed.

[0166] In the existing paging process, a paging file is specified based on the ID of the terminal. However, if the mechanism of the existing paging process is applied to the paging process for the slave terminal, the master terminal and the slave terminal are individually assigned paging files, which deteriorates the efficiency. In particular, in the case where the master terminal performs proxy paging reception, the master terminal must also read the paging message for the slave terminal, so an efficient mechanism that can uniformly receive the paging message for the slave terminal is required.

[0167] Therefore, the present embodiment specifies the timing of new paging to a slave terminal belonging to a master terminal (PF / PO). The timing of paging for a slave terminal belonging to a master terminal is called a proxy paging reception timing (PPRT).

[0168] Fig.13 : is a sequence diagram showing an example of the operation of the communication system 1 according to the embodiment of the present disclosure. Fig.13 This is an example of the operation of setting PPRT when a paging message is sent from the base station 200 to the terminal device 100b. Fig.13 An example of the operation of the communication system 1 according to an embodiment of the present disclosure will be described.

[0169] When the terminal device 100b belongs to the terminal device 100a, the terminal device 100b notifies the terminal device 100a of the information of the IMSI or UE_ID (step S111). The process of step S111 can be performed by the control unit 143, for example.

[0170] When the terminal device 100b belongs to the network of the terminal device 100a and the terminal device 100a receives information of the IMSI or UE_ID from the terminal device 100b, the terminal device 100a uses the received information to determine the PPRT (step S112). The process of step S112 can be performed by, for example, the control unit 143. In the case where the terminal device 100a performs proxy paging reception, the terminal device 100a uniformly receives the paging message 200 from the base station to the terminal device 100b based on the PPRT determined in step S112.

[0171] The process of determining the PPRT in step S112 will be described. In the case where the PPRT is determined, for example, with reference to the ID of the master terminal, the terminal device 100a may set the PPRT to the same timing (PF or PO) of paging for all slave terminals, set the PPRT to the same PF for all slave terminals while distinguishing PO, or set different PFs for all slave terminals.

[0172] In the case of setting the timing (PF or PO) of paging that is the same for all slave terminals, for example, the terminal device 100a determines the timing as PF as an arbitrary offset after the PF of the terminal device 100a as the master terminal, wherein the timing is the same subframe as the subframe of the terminal device 100a to be used as the timing of paging. It is expected that the timing of paging of the slave terminal is immediately after the PF of the terminal device 100a as the master terminal.

[0173] For example, in the case where the same PF is set for all slave terminals but PO is distinguished, the terminal device 100a determines the timing to, for example, a subframe as an arbitrary offset after the PF of the terminal device 100a as the master terminal. In addition, in the case where the same PF is set for all slave terminals but PO is distinguished, the terminal device 100a separates PO by the ID (slave ID) of the slave terminal. For example, the terminal device 100a can determine the PO of the slave terminal using the following formula.

[0174] PO = (Subordinate ID) mod (Number of PO candidates)

[0175] In the case where different PFs are set for slave terminals, for example, the terminal device 100a allocates a PF pool for the slave terminals. The terminal device 100a allocates the PF pool using an offset value calculated using the ID of the slave terminal.

[0176] The terminal device 100a allocates a pool to a plurality of subframes immediately after the PF of the terminal device 100a as the master terminal, for example, and allocates the PF of the slave terminal in the allocated pool. The terminal device 100a may determine the PF of the slave terminal using the following formula.

[0177] PF = (slave ID) mod (pool size)

[0178] Note that the PPRT may be determined by the terminal device 100 a using the above-described method (ie, using the period of the PF of the terminal device 100 a as the master terminal).

[0179] When the PPRT is determined in step S112, the terminal device 100a notifies the base station 20 of the determined PPRT so that the base station 200 updates the transmission timing of the paging message (step S113). The process of step S113 can be performed by the control unit 143, for example.

[0180] When the PPRT is received from the terminal device 100a, the base station 200 updates the transmission timing of the paging message based on the received PPRT (step S114). The process of step S114 may be performed by, for example, the control unit 253. Then, the base station 200 performs a paging operation for the terminal device 100a and the terminal device 100b (step S115). The process of step S115 may be performed by, for example, the control unit 253.

[0181] The terminal device 100a as the master terminal uses the IMSI or UE_ID obtained from the terminal device 100b as the slave terminal to determine the timing of paging to the slave terminal belonging to the master terminal, notifies the base station 200 of the determined paging timing, and thereby can uniformly receive paging messages for the slave terminals.

[0182] Although the terminal device 100a as the master terminal determines the PPRT in the above example, the present disclosure is not limited to this. The PPRT may be determined by the base station 200. In the case where the base station 200 determines the PPRT, the terminal device 100a may notify the base station 200 of the information of the IMSI or UE_ID obtained from the terminal device 100b as the slave terminal and the information of the IMSI or UE_ID obtained from the terminal device 100a as the master terminal, instead of determining the PPRT. The base station 200 determines the PPRT using the information of the IMSI or UE_ID obtained from the terminal device 100a as the master terminal and the information of the IMSI or UE_ID obtained from the terminal device 100b as the slave terminal.

[0183] exist Fig.11 In case 4, it is necessary for the master terminal in the RRC connection state with the base station to receive the paging signal to the slave terminal in the idle mode on behalf of the slave terminal. Therefore, it is expected that the master terminal in the RRC connection state with the base station can reliably obtain the paging information to the slave terminal. This embodiment proposes the following two technologies for allowing the master terminal to reliably obtain the paging information to the slave terminal.

[0184] (Technology 1)

[0185] The first technique is to newly define information about paging to the slave terminal in the information about paging to the master terminal. In addition, information that allows the master terminal to reliably obtain paging to the slave terminal is also defined in the S1AP: paging message. By newly defining information about paging to the slave terminal in the information about paging to the master terminal, the master terminal can clearly determine whether the received message is a message to itself or a message belonging to its own slave terminal.

[0186] Fig.14 is an explanatory diagram showing the structure of the S1AP: paging message that has been specified on the LTE platform. In the present embodiment, two pieces of information are added to the S1AP: paging message. One of them is a parameter for determining whether the S1AP: paging message is sent directly from the base station or via the master terminal, and in the present embodiment, the parameter is referred to as the "UE virtual cell parameter". The other is an information list (virtual cell ID) for identifying the master terminal whose range may include the target slave terminal, and in the present embodiment, the information list is referred to as the "UE virtual cell identity list".

[0187] The MME 300 sends the S1AP: paging message to which the above-mentioned “UE virtual cell parameters” and “UE virtual cell identity list” are added to the base station 200 .

[0188] Fig.15: is an explanatory diagram showing the structure of the RRC: paging message that has been specified on the LTE platform. In this embodiment, two pieces of information are added to the RRC: paging message. One is the above-mentioned "UE virtual cell parameters" and the other is the above-mentioned "UE virtual cell identity list".

[0189] The base station 200 sends an RRC: paging message to which the above-mentioned "UE virtual cell parameters" and "UE virtual cell identity list" are added to the terminal device 100a. By receiving the paging message to which the above-mentioned "UE virtual cell parameters" and "UE virtual cell identity list" are added, the terminal device 100a can clearly determine whether the received message is a message to itself or a message to a subordinate terminal belonging to itself.

[0190] Note that the above two pieces of information may be added to the BH: Paging message instead of the RRC: Paging message.

[0191] Furthermore, the present embodiment specifies that parameters necessary for the terminal device 100a to receive an AL: Paging message for performing paging between the terminal device 100a and the terminal device 100b are as follows: Note that the terminal device 100a responds to the AL: Paging message by transmitting an RRC: Paging message.

[0192] -Paging frame update

[0193] To provide a rewritten PF value or offset value.

[0194] - Main terminal paging information

[0195] Information used as a basis for the slave terminal, the information corresponds to, for example, the PF of the terminal device 100a as the master terminal, the terminal ID of the terminal device 100a, and the like.

[0196] As described above, by newly defining the paging information to the slave terminal in the paging information to the master terminal, the terminal device 100a as the master terminal can clearly determine whether the received message is a message to itself or a message to its own slave terminal.

[0197] (Technique 2)

[0198] The second technology is to use a method different from paging to notify the master terminal of the information of the paging to the slave terminal. The master terminal in the RRC connection state with the base station does not need to determine the information of decoding the paging for each PO. In this case, it is desirable to use a method different from paging to notify the master terminal in the RRC connection state about the base station of the information of the paging to the slave terminal. The notification method may include, for example, notification via PDCCH, notification via PDSCH, etc.

[0199] By notifying the master terminal in the RRC connected state with respect to the base station of information of paging addressed to the slave terminal using a method different from paging, the master terminal can certainly acquire a message addressed to the slave terminal belonging to itself.

[0200] Note that the above two methods can also be applied to case 2, that is, the case where both the master terminal and the slave terminal are in idle mode, and Fig.11 That is, when the terminal device 100a in the idle mode receives paging from the base station 200 and thus transitions to the RRC connected state, the terminal device 100a transitions to Fig.11 The state of Case 4, therefore, the terminal device 100a can receive the paging message addressed to the terminal device 100b in this way.

[0201] <2. Application Examples>

[0202] The technology of the present disclosure can be applied to various products. For example, the control entity 300 can be implemented as any type of server, such as a tower server, a rack server, a blade server, etc. In addition, the control entity 300 can be a control module installed in the server (for example, an integrated circuit module configured in a die or a card or a blade inserted in a slot of a blade server).

[0203] In addition, the base station 200 can be implemented as any type of evolved node B (eNB), for example, a macro eNB, a small eNB, etc. A small eNB may be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, a micro eNB, or a home (femto) eNB. Alternatively, the base station 200 may be implemented as another type of base station, such as a node B or a base transceiver station (BTS). The base station 200 may include a main body (also referred to as a base station device) that controls radio communications and one or more remote radio heads (RRHs) deployed at locations different from the main body. In addition, various types of terminals to be described below may be operated as a base station 200 by temporarily or semi-permanently performing base station functions.

[0204] In addition, the terminal device 100a and the terminal device 100b can each be implemented as, for example, a mobile terminal (such as a smart phone, a tablet personal computer (PC), a notebook PC, a portable game terminal, a portable / dongle type mobile router or a digital camera), or a vehicle-mounted terminal (such as a car navigation device). In addition, the terminal device 100a and the terminal device 100b can each be implemented as a terminal that performs machine-to-machine (M2M) communication (also referred to as a machine-type communication (MTC) terminal). In addition, the terminal device 100a and the terminal device 100b can each be a wireless communication module installed in such a terminal (for example, an integrated circuit module configured in one die).

[0205] [2-1. Application examples of control entities]

[0206] Fig.16 700 is a block diagram showing an example of a schematic configuration of a server 700 to which the technology of the present disclosure can be applied. The server 700 includes a processor 701 , a memory 702 , a storage 703 , a network interface 704 , and a bus 706 .

[0207] The processor 701 may be, for example, a central processing unit (CPU) or a digital signal processor (DSP), and controls various functions of the server 700. The memory 702 includes a random access memory (RAM) and a read-only memory (ROM), and stores programs and data executed by the processor 701. The memory 703 may include a storage medium such as a semiconductor memory or a hard disk.

[0208] The network interface 704 is a wired communication interface for connecting the server 700 to a wired communication network 705. The wired communication network 705 may be a core network such as an evolved packet core (EPC) or a packet data network (PDN) such as the Internet.

[0209] The bus 706 interconnects the processor 701, the memory 702, the storage 703, and the network interface 704. The bus 706 may include two or more buses operating at different speeds (eg, a high-speed bus and a low-speed bus).

[0210] exist Fig.16 In the server 700 shown in FIG. Fig.10 One or more constituent elements (information acquisition unit 331 and / or control unit 333) included in the described processing unit 330 can be implemented by processor 701. As an example, a program for causing the processor to be used as one or more constituent elements (i.e., a program for causing the processor to perform the operation of one or more constituent elements) can be installed in server 700, and processor 701 can execute the program. As another example, a module including processor 701 and memory 702 can be installed in server 700, and one or more constituent elements can be implemented by the module. In this case, the module can store a program for causing the processor to be used as one or more constituent elements in memory 702, and the program can be executed by processor 701. Server 700 or module can be provided as a device having one or more constituent elements described above, or a program for causing the processor to be used as one or more constituent elements can be provided. In addition, a readable recording medium having a program recorded therein can be provided.

[0211] [2-2. Application examples of base stations>

[0212] (First application example)

[0213] Fig.17 800 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 800 includes one or more antennas 810 and a base station device 820. Each antenna 810 and base station device 820 can be connected to each other via an RF cable.

[0214] Each antenna 810 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the base station device 820 to transmit and receive radio signals. Fig.17 As shown, the eNB 800 may include multiple antennas 810. For example, the multiple antennas 810 may be compatible with multiple frequency bands used by the eNB 800. Fig.17 An example is shown in which the eNB 800 includes a plurality of antennas 810 , but the eNB 800 may also include a single antenna 810 .

[0215] The base station device 820 includes a controller 821 , a memory 822 , a network interface 823 , and a wireless communication interface 825 .

[0216] The controller 821 may be, for example, a CPU or a DSP, and operates various functions of a higher layer of the base station device 820. For example, the controller 821 generates a data packet from data in a signal processed by the wireless communication interface 825, and transmits the generated packet via the network interface 823. The controller 821 may bundle data from a plurality of baseband processors to generate a bundle, and transmit the generated bundle. The controller 821 may have a logic function to perform control, such as radio resource control, radio bearer control, mobility management, admission control, and scheduling. The control may be performed in collaboration with a nearby eNB or core network node. The memory 822 includes a RAM and a ROM, and stores a program executed by the controller 821, as well as various types of control data (such as a terminal list, transmission power data, and scheduling data).

[0217] The network interface 823 is a communication interface for connecting the base station device 820 to the core network 824. The controller 821 can communicate with the core network node or other eNBs via the network interface 823. In this case, the eNB 800 can be connected to the core network node or other eNBs through a logical interface (S1 interface or X2 interface). The network interface 823 can also be a wired communication interface or a wireless communication interface for wireless backhaul. If the network interface 823 is a wireless communication interface, the network interface 823 can use a higher frequency band than the frequency band used by the wireless communication interface 825 for wireless communication.

[0218] The wireless communication interface 825 supports any cellular communication scheme, such as long term evolution (LTE) and advanced LTE (LTE-Advanced), and provides a radio connection to a terminal located in a cell of the eNB 800 via the antenna 810. The wireless communication interface 825 may generally include, for example, a baseband (BB) processor 826 and an RF circuit 827. The BB processor 826 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing of each layer (such as L1, medium access control (MAC), radio link control (RLC), and packet data convergence protocol (PDCP)). The BB processor 826 may replace the controller 821 and have part or all of the above-mentioned logical functions. The BB processor 826 may be a memory storing a communication control program, or a module including a processor and related circuits configured to execute the program. An update program may allow the function of the BB processor 826 to be changed. The module may be a card or a blade inserted into a slot of the base station device 820. Alternatively, the module may also be a chip mounted on a card or a blade. Meanwhile, the RF circuit 827 may include, for example, a mixer, a filter, and an amplifier, and transmits and receives a radio signal via the antenna 810 .

[0219] The wireless communication interface 825 may include multiple BB processors 826, such as Fig.17 For example, the plurality of BB processors 826 may be compatible with the plurality of frequency bands used by the eNB 800. The wireless communication interface 825 may include a plurality of RF circuits 827, such as Fig.17 As shown. For example, multiple RF circuits 827 can be compatible with multiple antenna elements. Fig.17 An example is shown in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827 , but the wireless communication interface 825 may also include a single BB processor 826 or a single RF circuit 827 .

[0220] (Second application example)

[0221] Fig.18 8 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology of the present disclosure can be applied. The eNB 830 includes one or more antennas 840, a base station device 850, and an RRH 860. Each antenna 840 and the RRH 860 can be connected to each other via an RF cable. The base station device 850 and the RRH 860 can be connected to each other via a high-speed line such as an optical fiber cable.

[0222] Each antenna 840 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the RRH 860 to transmit and receive radio signals. The eNB 830 may include multiple antennas 840, such as Fig.18 For example, multiple antennas 840 may be compatible with multiple frequency bands used by eNB 830. Fig.18 An example is shown in which the eNB 830 includes a plurality of antennas 840 , but the eNB 830 may also include a single antenna 840 .

[0223] The base station device 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857. The controller 851, the memory 852, and the network interface 853 are similar to the reference Fig.17 The controller 821, memory 822 and network interface 823 are the same.

[0224] The wireless communication interface 855 supports any cellular communication scheme, such as LTE and LTE-Advanced, and provides wireless communication to a terminal located in a sector corresponding to the RRH 860 via the RRH 860 and the antenna 840. The wireless communication interface 855 may generally include, for example, a BB processor 856. In addition to the BB processor 856 being connected to the RF circuit 864 of the RRH 860 via the connection interface 857, the BB processor 856 is connected to the reference RF circuit 864 of the RRH 860. Figure 1 The wireless communication interface 855 may include multiple BB processors 856, such as Fig.18 For example, multiple BB processors 856 may be compatible with multiple frequency bands used by eNB 830. Fig.18 An example is shown in which the wireless communication interface 855 includes a plurality of BB processors 856 , but the wireless communication interface 855 may also include a single BB processor 856 .

[0225] The connection interface 857 is an interface for connecting the base station device 850 (wireless communication interface 855) to the RRH 860. The connection interface 857 may also be a communication module for communicating in the above-mentioned high-speed line connecting the base station device 850 (wireless communication interface 855) to the RRH 860.

[0226] The RRH 860 includes a connection interface 861 and a wireless communication interface 863 .

[0227] The connection interface 861 is an interface for connecting the RRH 860 (wireless communication interface 863) to the base station device 850. The connection interface 861 may also be a communication module for communicating in the above-mentioned high-speed line.

[0228] The wireless communication interface 863 sends and receives radio signals via the antenna 840. The wireless communication interface 863 may generally include, for example, an RF circuit 864. The RF circuit 864 may include, for example, a mixer, a filter, and an amplifier, and sends and receives radio signals via the antenna 840. The wireless communication interface 863 may include a plurality of RF circuits 864, such as Fig.18 As shown. For example, multiple RF circuits 864 can support multiple antenna elements. Fig.18 An example is shown in which the wireless communication interface 863 includes a plurality of RF circuits 864 , but the wireless communication interface 863 may also include a single RF circuit 864 .

[0229] exist Fig.17 and Fig.18 In the eNB 800 and the eNB 830 shown in the figure, the wireless communication interface 855 and / or the wireless communication interface 863 may be used to implement the reference Fig. 9 One or more constituent elements (information acquisition unit 251 and / or control unit 253) included in the processing unit 250 described above. Alternatively, at least some of these constituent elements may be implemented by the controller 851. As an example, a module including a part (e.g., BB processor 856) or all of the wireless communication interface 855 and / or the controller 851 may be installed in the eNB 830, and one or more constituent elements may be implemented by the module. In this case, the module may store a program for causing the processor to be used as one or more constituent elements (i.e., a program for causing the processor to perform the operation of one or more constituent elements), and the program may be executed. As another example, a program for causing the processing to be used as one or more constituent elements may be installed in the eNB 830, and the wireless communication interface 855 (e.g., BB processor 856) and / or the controller 851 may execute the program. As described above, the eNB 830, the base station device 850, or the module may be provided as a device including one or more constituent elements, and a program for causing the processor to be used as one or more constituent elements may be provided. In addition, a readable recording medium having a program recorded therein may be provided.

[0230] In addition, Fig.18 In the eNB 830 shown, for example, reference Fig. 9 The described wireless communication unit 220 may be implemented by the wireless communication interface 863 (eg, the RF circuit 864). In addition, the antenna unit 210 may be implemented by the antenna 840. In addition, the network communication unit 230 may be implemented by the controller 851 and / or the network interface 853.

[0231] [2-3. Application examples of terminal devices]

[0232] (First application example)

[0233] Fig.19 900 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology of the present disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, one or more antenna switches 915, one or more antennas 916, a bus 917, a battery 918, and an auxiliary controller 919.

[0234] The processor 901 may be, for example, a CPU or a system on chip (SoC), and controls the functions of the application layer and other layers of the smartphone 900. The memory 902 includes a RAM and a ROM, and stores programs executed by the processor 901 and data. The storage 903 may include a storage medium such as a semiconductor memory and a hard disk. The external connection interface 904 is an interface for connecting an external device such as a memory card and a universal serial bus (USB) device to the smartphone 900.

[0235] The camera 906 includes an image sensor such as a charge coupled device (CCD) and a complementary metal oxide semiconductor (CMOS), and generates a captured image. The sensor 907 may include a sensor group such as a measurement sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor. The microphone 908 converts the sound input to the smart phone 900 into an audio signal. The input device 909 includes, for example, a touch sensor, a keypad, a keyboard, a button, or a switch configured to detect a touch on the screen of the display device 910, and receives an operation or information input from a user. The display device 910 includes a screen such as a liquid crystal display (LCD) and an organic light emitting diode (OLED) display, and displays an output image of the smart phone 900. The speaker 911 converts the audio signal output from the smart phone 900 into sound.

[0236] The wireless communication interface 912 supports any cellular communication scheme (such as LTE and Advanced LTE), and performs wireless communication. The wireless communication interface 912 may generally include, for example, a BB processor 913 and an RF circuit 914. The BB processor 913 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 914 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive radio signals via an antenna 916. The wireless communication interface 912 may also be a chip module 913 having a BB processor and an RF circuit 914 integrated thereon. The wireless communication interface 912 may include a plurality of BB processors 913 and a plurality of RF circuits 914, such as Fig.19 As shown. Fig.19 An example is shown in which the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914 , but the wireless communication interface 912 may also include a single BB processor 913 or a single RF circuit 914 .

[0237] In addition, in addition to the cellular communication scheme, the wireless communication interface 912 can also support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless local area network (LAN) schemes. In this case, the wireless communication interface 912 can include a BB processor 913 and an RF circuit 914 for each wireless communication scheme.

[0238] Each antenna switch 915 switches a connection destination of the antenna 916 between a plurality of circuits included in the wireless communication interface 912 , such as circuits for different wireless communication schemes.

[0239] Each antenna 916 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 912 to send and receive radio signals. The smart phone 900 may include multiple antennas 916, such as Fig.19 As shown. Fig.19 An example is shown in which the smartphone 900 includes a plurality of antennas 916 , but the smartphone 900 may also include a single antenna 916 .

[0240] In addition, the smartphone 900 may include an antenna 916 for each wireless communication scheme. In this case, the antenna switch 915 may be omitted from the configuration of the smartphone 900.

[0241] The bus 917 connects the processor 901, the memory 902, the storage 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other. The battery 918 is fed to the Fig.19 The block of the smartphone 900 is shown to be powered, wherein the feed lines are partially shown as dashed lines in the figure. The auxiliary controller 919 operates the minimum necessary functions of the smartphone 900, for example in a sleep mode.

[0242] exist Fig.19 In the smart phone 900 shown in FIG. 1 , the wireless communication interface 912 can be used to implement the reference Figure 8One or more constituent elements (information acquisition unit 141 and / or control unit 143) included in the processing unit 140 described. Alternatively, at least some of these constituent elements may be implemented by the processor 901 or the auxiliary controller 919. As an example, a module including a part (e.g., BB processor 913) or all of the wireless communication interface 912, the processor 901 and / or the auxiliary controller 919 may be installed in the smart phone 900, and one or more constituent elements may be implemented by the module. In this case, the module may store a program for causing the processor to be used as one or more constituent elements (i.e., a program for causing the processor to perform the operation of one or more constituent elements), and the program may be executed. As another example, a program for causing the processor to be used as one or more constituent elements may be installed in the smart phone 900, and the wireless communication interface 912 (e.g., BB processor 913), the processor 901 and / or the auxiliary controller 919 may execute the program. As described above, the smart phone 900 or the module may be provided as a device including one or more constituent elements, and a program for causing the processor to be used as one or more constituent elements may be provided. In addition, a readable recording medium having a program recorded therein may be provided.

[0243] In addition, Fig.19 In the smart phone 900 shown in FIG. 1 , the wireless communication interface 912 (eg, the RF circuit 914) may be used to implement, for example, Figure 8 The wireless communication unit 120 is described. Also, the antenna unit 110 may be implemented by the antenna 916.

[0244] (Second application example)

[0245] Fig. 20 9 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology of the present disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a global positioning system (GPS) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931, a wireless communication interface 933, one or more antenna switches 936, one or more antennas 937, and a battery 938.

[0246] The processor 921 may be, for example, a CPU or an SoC, and controls a navigation function and other functions of the car navigation device 920. The memory 922 includes a RAM and a ROM, and stores programs executed by the processor 921 and data.

[0247] The GPS module 924 measures the position (such as latitude, longitude and altitude) of the car navigation device 920 using GPS signals received from GPS satellites. The sensor 925 may include a sensor group such as a gyro sensor, a geomagnetic sensor and an air pressure sensor. The data interface 926 is connected to, for example, an in-vehicle network 941 via a terminal not shown in the figure, and acquires data (such as vehicle speed data) generated by the vehicle.

[0248] The content player 927 reproduces the content stored in the storage medium (such as CD and DVD) inserted into the storage medium interface 928. The input device 929 includes, for example, a touch sensor, a button, or a switch configured to detect a touch on the screen of the display device 930, and receives an operation or information input from a user. The display device 930 includes a screen such as an LCD or OLED display, and displays an image of a reproduced navigation function or content. The speaker 931 outputs the sound of the reproduced navigation function or content.

[0249] The wireless communication interface 933 supports any cellular communication scheme, such as LTE and Advanced LTE, and performs wireless communication. The wireless communication interface 933 may generally include, for example, a BB processor 934 and an RF circuit 935. The BB processor 934 may perform, for example, encoding / decoding, modulation / demodulation, and multiplexing / demultiplexing, and perform various types of signal processing for wireless communication. Meanwhile, the RF circuit 935 may include, for example, a mixer, a filter, and an amplifier, and transmit and receive radio signals via an antenna 937. The wireless communication interface 933 may be a chip module having the BB processor 934 and the RF circuit 935 integrated thereon. The wireless communication interface 933 may include a plurality of BB processors 934 and a plurality of RF circuits 935, such as Fig. 20 As shown. Fig. 20 An example is shown in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935 , but the wireless communication interface 933 may also include a single BB processor 934 or a single RF circuit 935 .

[0250] In addition, in addition to the cellular communication scheme, the wireless communication interface 933 can also support other types of wireless communication schemes, such as short-range wireless communication schemes, near field communication schemes, and wireless LAN schemes. In this case, the wireless communication interface 933 can include a BB processor 934 and an RF circuit 935 for each wireless communication scheme.

[0251] Each antenna switch 936 switches a connection destination of the antenna 937 between a plurality of circuits included in the wireless communication interface 933 , such as circuits for different wireless communication schemes.

[0252] Each antenna 937 includes a single or multiple antenna elements (such as multiple antenna elements included in a MIMO antenna) and is used for the wireless communication interface 933 to send and receive radio signals. The car navigation device 920 may include multiple antennas 937, such as Fig. 20 As shown. Fig. 20 An example is shown in which the car navigation device 920 includes a plurality of antennas 937 , but the car navigation device 920 may also include a single antenna 937 .

[0253] Furthermore, the car navigation device 920 may include an antenna 937 for each wireless communication scheme. In this case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.

[0254] Battery 938 is fed via a feed line to Fig. 20 The block of the car navigation device 920 is shown to be powered, wherein a feed line is partially shown as a dotted line in the figure. The battery 938 stores power supplied from the vehicle.

[0255] exist Fig. 20 In the car navigation device 920 shown in FIG. 1 , the wireless communication interface 933 can be used to implement the reference Figure 8 One or more constituent elements (information acquisition unit 141 and / or control unit 132) included in the processing unit 140 described. Alternatively, at least some of these constituent elements may be implemented by the processor 921. As an example, a module including a part (e.g., BB processor 934) or all of the wireless communication interface 933 and / or the processor 921 may be installed in the car navigation device 920, and one or more constituent elements may be implemented by the module. In this case, the module may store a program for causing the processor to be used as one or more structural elements (i.e., a program for causing the processor to perform the operation of one or more constituent elements), and the program may be executed. As another example, a program for causing the processor to be used as one or more constituent elements may be installed in the car navigation device 920, and the wireless communication interface 933 (e.g., BB processor 934) and / or the processor 921 may execute the program. As described above, the car navigation device 920 or the module may be provided as a device including one or more constituent elements, and a program for causing the processor to be used as one or more constituent elements may be provided. In addition, a readable recording medium having a program recorded therein may be provided.

[0256] In addition, Fig. 20 In the vehicle navigation device 920 shown, for example, reference Figure 8 The described wireless communication unit 220 may be implemented by the wireless communication interface 933 (eg, the RF circuit 935 ). Also, the antenna unit 110 may be implemented by the antenna 937 .

[0257] The technology of the present disclosure may also be implemented as an in-vehicle system (or vehicle) 940, which includes one or more blocks of a car navigation device 920, an in-vehicle network 941, and a vehicle module 942. In other words, the in-vehicle system (or vehicle) 940 may be provided as a device including one or more constituent elements included in the processing unit 140. The vehicle module 942 generates vehicle data (such as vehicle speed, engine speed, fault information), and outputs the generated data to the in-vehicle network 941.

[0258] <3. Conclusion>

[0259] According to the embodiments of the present disclosure described above, the terminal device 100a as a master terminal that can perform effective paging for other terminal devices (slave terminals) as paging targets can be provided in a system in which terminal devices function like a cell.

[0260] According to the embodiments of the present disclosure described above, when paging is performed from a base station for a terminal device (slave terminal) that is a paging target, effective paging can be performed via the terminal device (master terminal) that functions as a cell.

[0261] In addition, according to an embodiment of the present disclosure, when a slave base station performs paging for a terminal device (slave terminal) that is a paging target, the master terminal specifies the timing of paging for the slave terminal independently of the timing of paging for the master terminal by the slave base station. Since the master terminal specifies the timing of paging for the slave terminal independently of the timing of paging for the master terminal by the slave base station, the master terminal can efficiently perform paging for the slave terminal.

[0262] In addition, according to an embodiment of the present disclosure, the control entity 300 performs paging processing by pre-adding information indicating paging to the slave terminal. By pre-adding information indicating paging to the slave terminal, when the base station performs paging for the terminal device (slave terminal) as the paging target, the master terminal can reliably receive the paging for the slave terminal and thus perform paging for the slave terminal.

[0263] One or more preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, but the present disclosure is not limited to the above examples. Those skilled in the art may find various changes and modifications within the scope of the appended claims, and it should be understood that they will naturally fall within the technical scope of the present disclosure.

[0264] For example, although an example has been described in which the control entity and the base station are different devices, the present disclosure is not limited thereto. For example, the control entity may be implemented in the base station.

[0265] Furthermore, for example, although an example has been described in which the communication system conforms to LTE or LTE-A in the embodiments of the present disclosure, the present disclosure is not limited thereto. The communication system may be, for example, a system conforming to another communication standard.

[0266] In addition, the processing steps in the process of this specification may not necessarily be executed in a time series manner in the order described in the flowchart or sequence diagram. The processing steps in the process may also be executed in an order different from the order described in the flowchart or sequence diagram, or may be executed in parallel.

[0267] In addition, a computer program (i.e., a computer program for causing the processor (e.g., CPU, DSP, etc.) provided in the device of this specification (e.g., terminal device, base station, control entity or module thereof) to be used as a device may also be created. In addition, a recording medium having the computer program recorded therein may be provided. Moreover, a device (e.g., a finished product or a module (component, processing circuit, chip, etc.) for a finished product) including a memory storing a computer program and one or more processors that can execute the computer program may also be provided. In addition, a method for operating one or more constituent elements of a device (e.g., an information acquisition unit and / or a control unit) is also included in the technology of the present disclosure.

[0268] In addition, the effects described in this specification are merely illustrative or exemplary effects, not restrictive. That is, together with or in place of the above effects, other effects that are clearly seen by those skilled in the art from the description of this specification can be achieved according to the technology disclosed in this specification.

[0269] Furthermore, the present technology may also be configured as follows.

[0270] (1) A terminal device comprising:

[0271] an acquiring unit, configured to acquire a paging message from a base station; and

[0272] A control unit is configured to perform paging for one or more other terminal devices performing wireless communication with the base station via the terminal device based on the paging message acquired by the acquisition unit.

[0273] (2) The terminal device according to (1), wherein the acquisition unit acquires the paging message including a paging message addressed to the other terminal device.

[0274] (3) The terminal device according to any one of (1) to (2), wherein the control unit specifies the timing of paging for the other terminal device independently of the timing of paging from the base station.

[0275] (4) The terminal device according to (3), wherein the control unit specifies that paging is performed in a paging frame that is consistent with all of the other terminal devices.

[0276] (5) The terminal device according to (3), wherein the control unit specifies that paging is performed in a paging frame and a subframe that are consistent for all of the other terminal devices.

[0277] (6) The terminal device according to (3), wherein the control unit specifies that paging is performed in a different paging frame for each of the other terminal devices.

[0278] (7) The terminal device according to any one of (3) to (6), wherein the control unit stipulates that an interval of paging for the other terminal device is longer than an interval of paging from the base station.

[0279] (8) The terminal device according to any one of (1) to (7), wherein the control unit transmits information for identifying the terminal device and information for identifying the other terminal device to the base station.

[0280] (9) A wireless communication device comprising:

[0281] a control unit configured to perform paging for the first terminal device and a second terminal device performing wireless communication via the first terminal device; and

[0282] The acquisition unit is configured to acquire information, wherein the information is used to specify the timing of paging for the second terminal device by the control unit independently of the timing of paging for the first terminal device.

[0283] (10) The wireless communication device according to (9), wherein the control unit performs paging for the second terminal device at a timing specified by the first terminal device.

[0284] (11) The wireless communication device according to (9), wherein the control unit specifies timing of paging for the second terminal device based on the information acquired by the acquisition unit.

[0285] (12) A wireless communication method, comprising:

[0286] Obtaining a paging message from a base station; and

[0287] Based on the acquired paging message, paging of another terminal device performing wireless communication with the base station is performed via the terminal device.

[0288] (13) A wireless communication method, comprising:

[0289] performing paging for the first terminal device and a second terminal device performing wireless communication via the first terminal device; and

[0290] Information for specifying the timing of paging for the second terminal device independently of the timing of paging for the first terminal device is acquired.

[0291] (14) A computer program that causes a computer to execute:

[0292] Obtaining a paging message from a base station; and

[0293] Based on the acquired paging message, paging of another terminal device performing wireless communication with the base station is performed via the terminal device.

[0294] (15) A computer program that causes a computer to execute:

[0295] paging of the first terminal device and the second terminal device performing wireless communication via the first terminal device; and

[0296] Information for specifying the timing of paging for the second terminal device independently of the timing of paging for the first terminal device is acquired.

[0297] Reference numerals

[0298] 1 Communication system

[0299] 100a, 100b terminal equipment

[0300] 200 Base Stations

[0301] 300 Control Entity

Claims

1. A first terminal device, configured as follows: receiving a mobile subscriber identity IMSI of a second terminal device from a second terminal device, the second terminal device performing wireless communication with the base station via the first terminal device, sending a mobile subscriber identity of the second terminal device to the base station, acquiring a paging message from a base station at a paging timing, wherein the paging timing is determined by the base station based on a mobile subscriber identity of the second terminal device, Check whether the paging message includes the terminal ID UE_ID of the second terminal device, where UE_ID = IMSI mod1024, and In the case where the paging message includes the terminal ID of the second terminal device, performing paging for the second terminal device, in, The paging of the second terminal device causes the second terminal device to transition from the idle mode to the non-idle mode.

2. The first terminal device according to claim 1, The paging message is sent to the second terminal device, and / or The first terminal device is further configured to obtain a paging message addressed to other terminal devices.

3. The first terminal device according to claim 1, wherein a first paging timing for paging the second terminal device is specified independently of a second paging timing of a paging message for the first terminal device acquired from the base station. 4 . The first terminal device according to claim 1 , wherein the first terminal device is further configured not to perform paging for the second terminal device if the paging message does not include the terminal ID of the second terminal device.

5. A wireless communication method performed by a first terminal device, comprising: receiving a mobile subscriber identity IMSI of a second terminal device from a second terminal device, the second terminal device performing wireless communication with the base station via the first terminal device, sending a mobile subscriber identity of the second terminal device to the base station, acquiring a paging message from a base station at a paging timing, wherein the paging timing is determined by the base station based on a mobile subscriber identity of the second terminal device, Check whether the paging message includes the terminal ID UE_ID of the second terminal device, where UE_ID = IMSI mod1024, and In the case where the paging message includes the terminal ID of the second terminal device, performing paging for the second terminal device, The paging of the second terminal device causes the second terminal device to switch from an idle mode to a non-idle mode.

6. The wireless communication method according to claim 5, The paging message is sent to the second terminal device, and / or The wireless communication method further includes acquiring a paging message addressed to other terminal devices.

7. The wireless communication method according to claim 5, wherein a first paging timing of the paging to the second terminal device is specified independently of a second paging timing of a paging message to the first terminal device acquired from the base station. 8 . The wireless communication method according to claim 5 , wherein the wireless communication method further comprises not performing paging for the second terminal device in a case where the paging message does not include the terminal ID of the second terminal device.

9. A wireless communication device, configured to: receiving a mobile subscriber identity IMSI of a second terminal device from the first terminal device, the second terminal device performing wireless communication with the wireless communication device via the first terminal device, and A paging message is sent to the first terminal device at a paging timing, wherein the paging timing is determined by the wireless communication device based on the mobile subscriber identity of the second terminal device, the paging message enables the first terminal device to check whether the paging message includes the terminal ID UE_ID of the second terminal device, wherein UE_ID=IMSI mod 1024, and in the case where the paging message includes the terminal ID of the second terminal device, paging the second terminal device is performed, wherein, The paging of the second terminal device causes the second terminal device to transition from the idle mode to the non-idle mode.

10. A wireless communication method for a wireless communication device, comprising: receiving a mobile subscriber identity IMSI of a second terminal device from the first terminal device, the second terminal device performing wireless communication with the wireless communication device via the first terminal device, and A paging message is sent to the first terminal device at a paging timing, where the paging timing is determined by the wireless communication device based on the mobile subscriber identity of the second terminal device, the paging message enables the first terminal device to check whether the paging message includes the terminal ID UE_ID of the second terminal device, where UE_ID=IMSI mod 1024, and in a case where the paging message includes the terminal ID of the second terminal device, paging the second terminal device is performed, where the paging of the second terminal device causes the second terminal device to transition from an idle mode to a non-idle mode.

11. A computer-readable storage medium having a computer program stored thereon, the computer program comprising instructions which, when executed by a processor, cause the processor to perform the wireless communication method according to any one of claims 5 to 8 and 10.

12. A device comprising a processor and a memory, the memory storing a computer program, the computer program comprising instructions which, when executed by the processor, cause the processor to perform the wireless communication method according to any one of claims 5 to 8 and 10.

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