Paging method and system, and storage medium

Abstract

The invention provides a paging method and system and a storage medium. The method can be applied to a first terminal device, and comprises: receiving first information and / or second information from a second terminal device, the first information comprising information of a subgroup to which the second terminal device belongs, the second information being used for determining the subgroup to which the second terminal device belongs, and monitoring indication information, the indication information is used for indicating to monitor paging opportunities associated with the subgroup, the first terminal device monitors the indication information based on the subgroup of the second terminal device, and the first terminal device can help the second terminal device monitor the paging information based on the indication information, thereby realizing paging indication based on the relay technology, and improving the paging indication efficiency. And the paging of the second terminal equipment by the network equipment is realized.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a paging method, system and storage medium. Background Art

[0002] In a wireless communication system, signaling and data transmission can be performed between user equipment (UE) and UE based on sidelink (SL). In order to further expand the coverage of the network and SL, improve power efficiency, and support a wider range of applications and services, the user equipment to network (UE to network, U2N) relay technology is introduced. U2N Relay is a method in which a relay UE (relay UE) provides relay communication for a remote UE (remote UE), that is, the remote UE accesses the network through the relay UE. However, in the relay communication scenario of the U2N network, as well as in the relay scenarios of other communication networks, how to implement paging of the remote UE is a problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present application provide a paging method, system, and storage medium, which implement paging of a remote UE in a relay scenario.

[0004] In a first aspect, an embodiment of the present application provides a paging method. The execution subject of the method may be a first terminal device, and the first terminal device may also be replaced by a component in the first terminal device, such as a chip, a chip system, or other functional modules capable of calling and executing a program.

[0005] In a first example of the method, the first terminal device may receive first information from the second terminal device, the first information including information of the group to which the second terminal device belongs, and monitor indication information, the indication information being used to indicate monitoring of a paging opportunity associated with the group to which the second terminal device belongs.

[0006] The group information in the first information may be obtained by network configuration or by calculation based on a terminal identifier corresponding to the second terminal device.

[0007] In a second example of the method, the first terminal device may receive second information from the second terminal device, the second information being used to determine the group to which the second terminal device belongs, and monitor indication information, the indication information being used to indicate monitoring of a paging opportunity associated with the group to which the second terminal device belongs.

[0008] Optionally, the above indication information can also indicate the paging time associated with the group described by the first terminal device, that is, the first terminal device can monitor the paging time associated with the group to which the second terminal device belongs, and can also monitor the paging time associated with the group to which the first terminal device belongs based on the indication information.

[0009] The first terminal device receives the first information and / or the second information from the second terminal device, and can monitor the indication information used to indicate the paging opportunity associated with the group according to the information of the group to which the second terminal device belongs, implement the paging indication based on the relay technology, and then implement the paging of the second terminal device by the network device.

[0010] Furthermore, the indication information indicates that the paging occasions associated with the group can be monitored in descending order of paging false alarm probability, thereby reducing the paging reception power of the terminal.

[0011] The first example above can be applied to a scenario where the processing capability of the first terminal device is weak or the power consumption of the first terminal device needs to be reduced; the second example above is more applicable to a scenario where the processing capability of the second terminal device is weak or the power consumption of the second terminal device needs to be reduced. It should be understood that this application does not limit its usage scenarios.

[0012] In order to reduce the overhead of the indication information, the first terminal device can monitor the indication information in combination with the update of the cell last used by the second terminal device. For example, when the cell last used by the second terminal device is not updated, the first terminal device monitors the above indication information; when the cell last used by the second terminal device is updated, the first terminal device does not monitor the above indication information. In this case, the network device can page the second terminal device using a traditional paging method.

[0013] Among them, the cell last used may be referred to as the last used cell, the cell last accessed, the cell last stayed in, etc.

[0014] In a possible implementation, the first terminal device may monitor the above-mentioned indication information based on third information, the third information including at least one of information of the service cell, information of the last used cell, and cell update information, the cell update information being used to indicate that the last used cell of the second terminal device has not been updated or to indicate that the last used cell of the second terminal device has been updated, wherein the last used cell has not been updated means that the last used cell is consistent with the service cell, and the last used cell is updated means that the last used cell is inconsistent with the service cell. The first terminal device determines the update status of the last used cell of the second terminal device based on the third information, and then determines whether to monitor the above-mentioned indication information. Accordingly, in the case where it is not necessary to monitor the indication information, the indication information may not indicate the paging occasion associated with the group to which the second terminal device belongs, so as to save the overhead of the indication information compared to always monitoring the indication information.

[0015] Continuing with the above embodiment, when the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, the first terminal device monitors the indication information to save the overhead of the indication information.

[0016] In one possible implementation, the first terminal device does not always need to determine whether the last used cell of the second terminal device is updated. Exemplarily, the first terminal device can determine whether the last used cell of the second terminal device is consistent with the service cell of the second terminal device when the system information includes a first indication, and monitor the above indication information when the last used cell of the second terminal device is consistent with the service cell of the second terminal device under the first indication. When the system information does not include the first indication, the first terminal device does not need to execute the process of determining whether the last used cell of the second terminal device is consistent with the service cell of the second terminal device. For example, when the system information does not include the first indication, the first terminal device can perform the action of monitoring the indication information. Based on this, the network device can be flexibly configured to save the indication information overhead or reduce the processing complexity of the first terminal device.

[0017] In a possible implementation, the first terminal device may receive fourth information from the second terminal device, and the fourth information is used to indicate the cell last used by the second terminal device, so that the first terminal device can determine whether the cell last used by the second terminal device is updated, and then determine whether to monitor the indication information, thereby saving the indication information overhead.

[0018] In a possible implementation, the first terminal device may send fifth information to the second terminal device, where the fifth information is used to indicate that the first terminal device supports the paging advance indication, so that the second terminal device may send the first information if it is determined that the first terminal device supports the paging advance indication.

[0019] In a possible implementation, the first terminal device may receive sixth information sent by the second terminal device, the sixth information being used to request the acquisition of fifth information. The first terminal device sends indication information indicating support for paging advance indication in response to the request of the second terminal device, thereby improving the reliability of communication.

[0020] In a second aspect, an embodiment of the present application provides a paging method. The execution subject of the method may be a second terminal device, and the second terminal device may also be replaced by a component in the second terminal device, such as a chip, a chip system, or other functional modules capable of calling and executing a program.

[0021] In a first example of the method, the second terminal device may send first information to the first terminal device, where the first information includes information about the group to which the second terminal device belongs.

[0022] The first information may be determined by the second terminal device, or the first information may be received by the second terminal device from other devices (such as network devices). For example, when the group information is configured by the network device, the first information may be the group information sent by the network device to the second terminal device; for another example, when the group information is allocated based on the terminal identifier corresponding to the second terminal device, the first information may be determined by the first terminal device based on the terminal identifier corresponding to the second terminal device and the group allocation parameter.

[0023] In some implementations, the second terminal device may send the first information to the first terminal device based on the third information, the third information including at least one of the information of the serving cell, the information of the last used cell, and the cell update information, the cell update information being used to indicate that the last used cell of the second terminal device has not been updated. The second terminal device determines the update status of the last used cell of the second terminal device itself based on the third information, and then determines whether to receive paging based on the indication information, that is, whether to send the first information. Compared with always sending the first information, transmission resources are saved, and not receiving paging based on the indication information can save the overhead of the indication information.

[0024] Continuing with the above embodiment, the second terminal device sends the first information to the first terminal device when the cell last used by the second terminal device itself is consistent with the serving cell of the second terminal device, so as to save transmission resources and save the overhead of indication information.

[0025] In one possible implementation, the second terminal device does not always need to determine whether the last used cell of the second terminal device is updated. Exemplarily, the second terminal device can determine whether the last used cell of the second terminal device is consistent with the service cell of the second terminal device when the system information includes a first indication, and send the first information when the last used cell of the second terminal device is consistent with the service cell of the second terminal device under the first indication. When the system information does not include the first indication, the second terminal device does not need to perform the process of determining whether the last used cell of the second terminal device is consistent with the service cell of the second terminal device. For example, when the system information does not include the first indication, the second terminal device can perform the action of monitoring the indication information. Based on this, the network device can be flexibly configured to save the indication information overhead or reduce the processing complexity of the second terminal device.

[0026] In a possible implementation, the second terminal device may send fourth information to the first terminal device, and the fourth information is used to indicate the cell last used by the second terminal device, so that the first terminal device can determine whether the cell last used by the second terminal device is updated, and then determine whether to monitor the indication information, thereby saving the indication information overhead.

[0027] To ensure the reliability of paging based on the indication information, in a possible implementation, the second terminal device sends the first information to the first terminal device when at least one of the first terminal device, the second terminal device and the network device supports the paging advance indication.

[0028] In order to further ensure the reliability of the paging of the indication information, in a possible implementation, the second terminal device may send the first information to the first terminal device according to the group allocation mode information of the second terminal device and the group allocation mode information of the network device.

[0029] Continuing with the above embodiment, the group allocation mode information can be used to indicate the supported group allocation modes, and the group allocation modes may include a first group allocation mode and a second group allocation mode, and the first group allocation mode may be an allocation mode in which a network device (such as a CN) allocates a group. In the first group allocation mode, the information of the group to which the second terminal device belongs is configured by the network device; the second group allocation mode may be an allocation mode in which a group is allocated based on a terminal identifier (such as a UE ID) corresponding to the second terminal device, and in the second group allocation mode, the information of the group to which the second terminal device belongs is determined based on the terminal identifier corresponding to the second terminal device.

[0030] In a possible implementation, the second terminal device receives fifth information from the first terminal device, and the fifth information is used to indicate that the first terminal device supports the paging advance indication, so that the second terminal device can send the first information when determining that the first terminal device supports the paging advance indication.

[0031] In a possible implementation, the second terminal device sends sixth information to the first terminal device, and the sixth information is used to request to obtain the fifth information. The first terminal device can send indication information indicating support for paging advance indication in response to the request of the second terminal device, thereby improving the reliability of communication.

[0032] In a second example of the method, the second terminal device may send second information to the first terminal device, where the second information is used to determine the group to which the second terminal device belongs.

[0033] The second information may be received by the second terminal device from other devices (such as network devices). For example, the network device may send 5G-S-TMSI to the second terminal device via NAS signaling. Of course, this application does not exclude the possibility that the second terminal device itself determines the second information.

[0034] In one possible implementation, the second terminal device can send second information to the first terminal device based on third information, where the third information includes at least one of information about the serving cell, information about the last used cell, and cell update information, and the cell update information is used to indicate that the last used cell of the second terminal device has not been updated.

[0035] In a possible implementation, the second terminal device may send the second information to the first terminal device when the cell last used by the second terminal device is consistent with the serving cell of the second terminal device.

[0036] In one possible implementation, the second terminal device can determine whether the last used cell of the second terminal device is consistent with the service cell of the second terminal device when the system information includes a first indication, and send second information when the last used cell of the second terminal device is consistent with the service cell of the second terminal device under the first indication.

[0037] In a possible implementation, the second terminal device may send fourth information to the first terminal device, where the fourth information is used to indicate a cell last used by the second terminal device.

[0038] In a possible implementation, the second terminal device may send the second information to the first terminal device when the second terminal device and the network device support paging advance indication.

[0039] In a possible implementation, the second terminal device sends the second information to the first terminal device when the first terminal device supports the paging advance indication.

[0040] In a possible implementation manner, the second terminal device sends the second information to the first terminal device according to the group allocation mode information of the second terminal device and the group allocation mode information of the network device.

[0041] In one possible implementation, under the first group allocation mode, information about the group to which the second terminal device belongs is configured by the core network; or, under the second group allocation mode, information about the group to which the second terminal device belongs is determined based on a terminal identifier corresponding to the second terminal device.

[0042] In a possible implementation, the second terminal device may receive fifth information from the first terminal device, where the fifth information is used to indicate that the first terminal device supports paging advance indication.

[0043] In a possible implementation manner, the second terminal device may send sixth information to the first terminal device, where the sixth information is used to request to obtain the fifth information.

[0044] It should be noted that the first example of the second aspect and the second example of the second aspect may be combined with each other, that is, the second terminal device may send the first information and / or the second information to the first terminal device.

[0045] The beneficial effects of the paging method provided by the second example of the second aspect and the possible implementation of the second example can be referred to the beneficial effects brought about by the first example of the second aspect and the possible implementation of the second example, which will not be repeated for the sake of brevity.

[0046] In a third aspect, an embodiment of the present application provides a communication device, comprising: a transceiver module, used to receive first information and / or second information from a second terminal device, the first information including information of a group to which the second terminal device belongs, and the second information being used to determine the group to which the second terminal device belongs; a processing module, used to monitor indication information, the indication information being used to indicate monitoring of a paging opportunity associated with the group.

[0047] In a possible implementation, the processing module is specifically used to: monitor the indication information according to third information, where the third information includes at least one of information of the service cell, information of the last used cell, and cell update information, and the cell update information is used to indicate that the last used cell of the second terminal device has not been updated.

[0048] In a possible implementation, the processing module is specifically configured to: when the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, monitor the indication information.

[0049] In a possible implementation, the processing module is also used to: when the system information includes a first indication, determine whether the cell last used by the second terminal device is consistent with the service cell of the second terminal device; when the cell last used by the second terminal device under the first indication is consistent with the service cell of the second terminal device, monitor the indication information.

[0050] In a possible implementation, the transceiver module is further used to: receive fourth information from the second terminal device, where the fourth information is used to indicate a cell last used by the second terminal device.

[0051] In a possible implementation, the transceiver module is further used to: send fifth information to the second terminal device, where the fifth information is used to indicate that the first terminal device supports paging advance indication.

[0052] In a possible implementation, the transceiver module is further used to: receive sixth information sent by the second terminal device, where the sixth information is used to request to obtain the fifth information.

[0053] The beneficial effects of the communication device provided by the third aspect and each possible implementation manner of the third aspect can be referred to the beneficial effects brought about by the first aspect and each possible implementation manner of the first aspect, and will not be repeated here.

[0054] In a fourth aspect, an embodiment of the present application provides a communication device, comprising: a processing module, used to obtain first information and / or second information, the first information including information of the group to which the second terminal device belongs, or the second information is used to determine the group to which the second terminal device belongs; a transceiver module, used to send the first information and / or the second information to the first terminal device.

[0055] In a possible implementation, the transceiver module is specifically used to: send the first information and / or the second information to the first terminal device based on third information, the third information including at least one of the service cell information, the last used cell information, and the cell update information, and the cell update information is used to indicate that the last used cell of the second terminal device has not been updated.

[0056] In a possible implementation, the transceiver module is specifically used to send the first information and / or the second information to the first terminal device when the cell last used by the second terminal device is consistent with the serving cell of the second terminal device.

[0057] In a possible implementation, the processing module is further used to: when the system information includes the first indication, determine whether the cell last used by the second terminal device is consistent with the serving cell of the second terminal device.

[0058] In a possible implementation, the transceiver module is further used to: send fourth information to the first terminal device, where the fourth information is used to indicate the cell last used by the second terminal device.

[0059] In a possible implementation manner, the transceiver module is specifically configured to: send the first information and / or the second information to the first terminal device when the second terminal device and the network device support paging advance indication.

[0060] In a possible implementation, the transceiver module is specifically used to: send the first information and / or the second information to the first terminal device when the first terminal device supports paging advance indication.

[0061] In a possible implementation manner, the transceiver module is specifically configured to: send the first information and / or the second information to the first terminal device according to the group allocation mode information of the second terminal device and the group allocation mode information of the network device.

[0062] In a possible implementation, under the first group allocation mode, the information of the group to which the second terminal device belongs is configured by the core network; or, under the second group allocation mode, the information of the group to which the second terminal device belongs is determined based on the identifier of the second terminal device.

[0063] In a possible implementation, the transceiver module is further used to: receive fifth information from the first terminal device, where the fifth information is used to indicate that the first terminal device supports paging advance indication.

[0064] In a possible implementation, the transceiver module is further used to: send sixth information to the first terminal device, where the sixth information is used to request to obtain the fifth information.

[0065] The beneficial effects of the communication device provided by the fourth aspect and each possible implementation manner of the fourth aspect can be referred to the beneficial effects brought about by the second aspect and each possible implementation manner of the second aspect, and will not be repeated here.

[0066] In a fifth aspect, an embodiment of the present application provides a communication device, comprising: a processor, configured to execute a method in the first aspect, the second aspect or each possible implementation manner by running a computer program or through a logic circuit.

[0067] In a possible implementation, the communication device further includes: a memory, wherein the memory is used to store the computer program.

[0068] In a possible implementation, the communication device further includes: a communication interface, wherein the communication interface is used to input and / or output signals.

[0069] In a sixth aspect, an embodiment of the present application provides a communication system, comprising: a first terminal device for executing the method in the first aspect or each possible implementation manner, and a terminal device for executing the method in the second aspect or each possible implementation manner.

[0070] In a seventh aspect, an embodiment of the present application provides a chip, comprising: a processor, configured to call and execute computer instructions from a memory, so that a device equipped with the chip executes a method as in the first aspect, the second aspect, or each possible implementation.

[0071] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium for storing computer program instructions, wherein the computer program enables a computer to execute a method as in the first aspect, the second aspect, or each possible implementation manner.

[0072] In a ninth aspect, an embodiment of the present application provides a computer program product, comprising computer program instructions, which enable a computer to execute a method as in the first aspect, the second aspect, or each possible implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 A communication system applicable to an embodiment of the present application is shown;

[0074] Figure 2a A schematic diagram of an application scenario provided in an embodiment of the present application;

[0075] Figure 2b A schematic diagram of another application scenario provided by an embodiment of the present application;

[0076] Figure 2c A schematic diagram of another application scenario provided by an embodiment of the present application;

[0077] Figure 3a A schematic diagram of discontinuous reception provided in an embodiment of the present application;

[0078] Figure 3b A schematic diagram of an extended discontinuous reception provided in an embodiment of the present application;

[0079] Figure 4 A schematic diagram of a paging indication provided in an embodiment of the present application;

[0080] Figure 5a A schematic diagram of a flow chart of a network configuration group provided in an embodiment of the present application;

[0081] Figure 5b A schematic diagram of a process based on terminal identification allocation group provided in an embodiment of the present application;

[0082] Figure 6aA schematic diagram of an interactive process of a paging method provided in an embodiment of the present application;

[0083] Figure 6b A schematic diagram of an interactive process of a paging method provided in an embodiment of the present application

[0084] Figure 7 A schematic diagram of a cell update provided in an embodiment of the present application;

[0085] Figure 8a A schematic diagram of an interactive process of a paging method provided in an embodiment of the present application;

[0086] Figure 8b A schematic diagram of an interactive process of a paging method provided in an embodiment of the present application;

[0087] Fig. 9 A schematic diagram of an interactive process of a paging method provided in an embodiment of the present application;

[0088] Fig.10 is a schematic block diagram of a communication device provided in an embodiment of the present application;

[0089] Fig.11 It is another schematic block diagram of the communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0090] Figure 1 FIG. 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may further include at least one terminal (such as Figure 1 120a-120j in the figure). The terminal is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network 200 in a wireless or wired manner. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminals and wireless access network devices can be connected to each other in a wired or wireless manner. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.

[0091] Radio access network equipment is the access equipment that the terminal uses to access the communication system wirelessly. Radio access network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in the fifth generation (5G) mobile communication system, a next generation base station in the sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it can also be a module or unit that completes some functions of a base station, for example, a centralized unit (CU) or a distributed unit (DU). The CU here completes the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also complete some or all of the physical layer functions. For detailed descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). The wireless access network equipment can be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, the following description takes a base station as an example of a wireless access network device.

[0092] A terminal is a device with wireless transceiver function, which can send signals to a base station or receive signals from a base station. A terminal can also be called a terminal device, user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal.

[0093] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0094] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0095] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0096] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, smart city, etc. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0097] In this application, the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel; the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel. In order to communicate with the base station, the terminal needs to establish a wireless connection with the cell controlled by the base station. The cell with which the terminal has established a wireless connection is called the service cell of the terminal. When the terminal communicates with the service cell, it will also be interfered by signals from neighboring cells.

[0098] To facilitate understanding of the present application, the paging-related terms involved in the present application are first explained below.

[0099] The paging mechanism refers to the core network (CN) or radio access network (RAN) sending paging information to enable a terminal in an idle or inactive state to enter a connected state when the core network (CN) or radio access network (RAN) needs to send signaling and / or data to the terminal.

[0100] To facilitate understanding of paging, discontinuous reception (DRX) and extended discontinuous reception (eDRX) technologies are first introduced.

[0101] In DRX technology, the terminal periodically enters a sleep state and does not receive paging information in the sleep state (or sleep period), for example, it does not monitor the physical downlink control channel (PDCCH), which can carry downlink control information (DCI) indicating the resource location of paging information. When the network device needs to send signaling and / or data to the terminal, it wakes up the terminal from the sleep state to enable the terminal to monitor the paging information, thereby achieving the purpose of reducing energy consumption. For example, see Figure 3a , the terminal wakes up in each DRX cycle to monitor paging information. eDRX can extend the existing DRX cycle, see Figure 3b In the eDRX cycle, the terminal is in a deep sleep period for a long time and monitors paging information in a DRX manner within a paging time window (PTW).

[0102] The terminal may monitor paging information in each DRX cycle, or monitor paging information in each DRX cycle within a PTW. A DRX cycle may also be referred to as a paging cycle, and for the sake of uniformity, it is referred to as a paging cycle hereinafter.

[0103] A paging frame (PF) is a radio frame that may include one or more paging occasions (PO). PO is the monitoring occasion (MO) of PDCCH. When a terminal receives paging information using the DRX method, a terminal in an idle or inactive state monitors PDCCH in a specific time domain resource (such as a subframe). These specific time domain resources (such as subframes) are called paging occasions PO. A PO may contain multiple time slots. For example, a time slot may be a subframe or an orthogonal frequency division multiplexing (OFDM) symbol.

[0104] In the time domain, the terminal attempts to receive paging information in the PO of the PF in its paging cycle (such as the above-mentioned DRX cycle). Taking DRX as an example, the terminal monitors the PDCCH in the PO in each DRX cycle, and the terminal monitors the PDCCH in the specific PO in each paging cycle.

[0105] It should be noted that the terminal receives paging information (or monitors paging information) in the PO period, which can be specifically that the terminal wakes up periodically to monitor downlink control information (DCI) on the PO. The DCI can be carried on the PDCCH, and the PDCCH can be scrambled by the paging radio network temporary identifier (P-RNTI). The terminal obtains the time-frequency position of the physical downlink shared channel (PDSCH) carrying the paging information by parsing the DCI, and then the terminal monitors the PDSCH at the corresponding time-frequency position to receive the paging information.

[0106] Under the above paging mechanism, the terminal needs to monitor the paging information on the corresponding PO in each paging cycle, regardless of whether the network device pages the terminal at the PO. For terminals that are not paged, monitoring the paging will increase unnecessary power consumption.

[0107] Based on this, the network device sends paging indication information to the terminal before PO, and the paging indication information is used to indicate whether the corresponding PO includes paging information of the terminal. For example, the paging indication information can be paging early indication (PEI).

[0108] In the PEI implementation, multiple terminals belonging to the same PO can be divided into different groups (subgroups), see Figure 4 , UE 1 to UE k all monitor paging information in the same PO, k is an integer greater than 1, wherein UE 1, UE 3, ... belong to group 1, UE 2, UE 4, ... belong to group 2, ..., UE i, UE j, ... belong to group N, i and j are both positive integers. PEI can, for example, indicate whether each terminal in each group monitors paging information in the PO through a bitmap, such as the value of the first element in the bitmap is 0, indicating that UE 1, UE 3, ... in group 1 do not monitor paging information in the PO, and the value of the second element in the bitmap is 1, indicating that UE 2, UE 4, ... in group 2 monitor paging information in the PO.

[0109] Among them, the present application does not limit the PEI to be indicated by a bitmap, and does not limit the value of the element in the bitmap to indicate monitoring of paging information when it is 1, and to indicate not monitoring of paging information when it is 0. For example, the value of the element in the bitmap indicates monitoring of paging information when it is 0, and indicates not monitoring of paging information when it is 1. The present application does not limit the naming of the group, for example, it can also be called a subgroup or a group, etc. The information of the group hereinafter may be referred to as the information of the group, the information of the subgroup, etc.

[0110] Optionally, PEI may be mapped to {1, 2, 4, 8} POs in one or two paging frames. The configuration of PEI may be included in system information (SIB) (eg, SIB 1).

[0111] The network device indicates to the terminal device whether it needs to monitor paging according to the group granularity, thereby reducing the probability of paging warning and thus reducing the paging reception power consumption of the terminal.

[0112] In the implementation of PEI, the group division of terminals may include the following two possible methods.

[0113] Mode 1: Network equipment (such as CN) assigns a group. A network equipment (such as CN) can assign a group to a terminal. For example, CN sends NAS signaling to the terminal. The NAS signaling carries information about the terminal group, such as a group identity document (ID).

[0114] See also Figure 5a , CN can send the group ID corresponding to the terminal to the terminal and the base station respectively, the base station sends PEI to the terminal based on the group ID of the terminal, and the terminal parses PEI based on the group ID to determine whether to monitor PO. The allocation logic can be implemented by the access management function (AMF).

[0115] Method 2: Allocate a group based on the terminal device identifier (such as UE ID). If the terminal operates in eDRX, the UE ID can be determined based on the following formula (1); otherwise (such as the terminal operates in DRX), the UE ID can be determined based on the following formula (2).

[0116] UE ID = 5G-S-TMSI mod 4096 Formula (1)

[0117] UE ID = 5G-S-TMSI mod 1024 Formula (2)

[0118] Among them, the 5G-S-temporary mobile subscription identifier (5G-S-TMSI) can be configured by network equipment, such as carried by NAS signaling sent by CN.

[0119] Further, the information of the group may be determined by the UE ID. For example, the group ID is determined based on the following formula (3).

[0120] SubgroupID=(floor(UE_ID / (N*Ns))mod subgroupsNumForUEID)+(subgroupsNumPerPO-subgroupsNumForUEID) Formula (3)

[0121] Wherein, N is the total number of paging frames in the DRX cycle, Ns is the number of paging (PO) of PF, and subgroupsNumForUEID is the number of groups based on UE ID in PO. subgroupsNumPerPO is the number of groups allocated by CN in PO and / or the number of groups based on UE ID. N, Ns, subgroupsNumForUEID, and subgroupsNumPerPO can all be referred to as group allocation parameters, and one or more of the above group allocation parameters can be broadcast in system messages.

[0122] See also Figure 5b , the base station can send the UE ID and group allocation parameters to the terminal, the terminal and the base station can determine the group ID based on the UEID and the group allocation parameters respectively, and then the base station sends PEI to the terminal based on the group ID, and the terminal parses PEI based on the group ID to determine whether to monitor PO. In some embodiments, the base station does not need to send the UE ID to the terminal, and the terminal can determine the UE ID based on the 5G-S-TMSI.

[0123] In the application scenario of U2N relay technology, the relay UE provides the remote UE with a connection to the network. Figure 1 The terminal 120e in the example can access the network through the terminal 120a. The network coverage of the relay UE and the remote UE may include but is not limited to the following: Figure 2a to Figure 2c The three scenarios shown: See Figure 2a , the relay UE is within the coverage of the serving cell and the remote UE is outside the coverage of the serving cell; see Figure 2b , both the relay UE and the remote UE are within the coverage of the serving cell; see Figure 2c , the relay UE and the remote UE are respectively within the coverage of different serving cells.

[0124] In the layer 2 (L2) relay mode in U2N relay, the relay UE relays between the radio link control protocol (RLC) layer and the PDCP layer. For example, the remote UE and the relay UE communicate at the SRAP layer through the PC5 interface, and the relay UE and the base station communicate at the SRAP layer through the Uu interface. After the remote UE accesses the network through the relay, both the relay UE and the remote UE are controlled by the serving cell of the relay UE.

[0125] In the relay scenario of the above-mentioned U2N relay technology, how the network device implements paging of the remote UE through the relay UE is a problem that needs to be solved urgently. To address this problem, the embodiment of the present application enables the relay UE and the remote UE to exchange the information of the remote UE group or the information used to determine the remote UE group, so that the relay UE can receive the corresponding PEI for the remote UE, and then can monitor the paging information of the remote UE at the paging time indicated by the PEI, thereby implementing the remote UE paging based on the PEI.

[0126] It should be noted that the paging method provided in this application is not limited to its application scenario, and the paging method can be used to implement paging between devices in any relay scenario. In addition, relay UE and remote UE are both possible naming methods, and this application does not limit this.

[0127] To facilitate understanding of the embodiments of the present application, the following points are explained:

[0128] First, in the embodiments shown below, the first, second and various digital numbers are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different devices, information, etc.

[0129] Second, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

[0130] Third, in the embodiment of the present application, the first terminal device monitors the indication information, which can be understood as the first terminal device obtaining the indication information, or the first terminal device receiving the indication information. In the following, "monitor", "obtain" and "receive" are used interchangeably, and their meanings are the same.

[0131] The paging method provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0132] It should be understood that the following is only for the convenience of understanding and explanation, and the method provided in the embodiment of the present application is described in detail by taking the interaction between the first terminal device and the second terminal device as an example. The first terminal device may be, for example, the relay UE mentioned above. Figure 1 The second terminal device may be the remote UE, such as Figure 1 Terminal 120e in.

[0133] In some embodiments, the interaction between the first terminal device, the second terminal device and the network device is used as an example for explanation. The network device may include a wireless access network and / or a core network, such as including Figure 1 The wireless access network 100 and the core network 200 in the embodiment.

[0134] However, it should be understood that this should not constitute any limitation on the execution subject of the method provided in the present application. As long as it is possible to run a program that records the code of the method provided in the embodiment of the present application, according to the method provided in the embodiment of the present application, it can be used as the execution subject of the method provided in the embodiment of the present application. For example, the first terminal device shown in the following embodiment can also be replaced by a component in the first terminal device, such as a chip, a chip system, or other functional modules that can call and execute programs. The second terminal device can also be replaced by a component in the second terminal device, such as a chip, a chip system, or other functional modules that can call and execute programs. The network device can also be replaced by the tip of the nose in the network device, such as a chip, a chip system, or other functional modules that can call and execute programs.

[0135] Figure 6a Schematic diagram of an interactive process of a paging method 200a provided in an embodiment of the present application. Figure 6a As shown, the method 200a may include S210a and S220a. The following is a detailed description of each step in the method 200a.

[0136] S210a, the second terminal device sends first information to the first terminal device, where the first information includes information about the group to which the second terminal device belongs, and correspondingly, the first terminal device receives the first information from the second terminal device;

[0137] S220a, the first terminal device monitors indication information, where the indication information is used to indicate monitoring of a paging opportunity associated with a group to which the second terminal device belongs.

[0138] The information of the group in the first information may include, for example, a group ID. The information of the group may be network configuration (such as CN allocation), which is specifically implemented in the description of the aforementioned group division method 1, and will not be repeated for the sake of brevity; or, the information of the group may be calculated based on the terminal identifier (such as UE ID) corresponding to the second terminal device, for example, refer to the description of the aforementioned group division method 2.

[0139] The first information may be determined by the second terminal device, or the first information may be received by the second terminal device from other devices (such as network devices). For example, when the group information is configured by the network device, the first information may be the group information sent by the network device to the second terminal device; for another example, when the group information is allocated based on the terminal identifier corresponding to the second terminal device, the first information may be determined by the first terminal device based on the terminal identifier corresponding to the second terminal device and the group allocation parameter.

[0140] As mentioned above, the paging occasion may be a monitoring occasion for paging information, such as a subframe for monitoring paging information.

[0141] The first terminal device may receive the first information sent by the second terminal device, or the first terminal device may receive the first information of the second terminal device forwarded by other devices, which is not limited in this application. The first terminal device obtains the information of the group to which the second terminal device belongs based on the received first information. Furthermore, the first terminal device monitors the indication information based on the information of the group to which the second terminal device belongs.

[0142] Furthermore, the first terminal device can monitor the paging opportunity associated with the group to which the second terminal device belongs when the indication information indicates to monitor the paging opportunity. When the first terminal device receives the paging information from the paging opportunity, it can send the paging information to the second terminal device to implement the paging of the second terminal device by the network device.

[0143] Optionally, the indication information may also indicate monitoring of the paging time associated with the group to which the first terminal device belongs. For example, the indication information may indicate monitoring of the paging time associated with the group to which the first terminal device belongs, or the indication information may indicate monitoring of the paging time associated with the group to which the first terminal device belongs and the paging time associated with the group to which the second terminal device belongs. This application does not limit this.

[0144] The above-mentioned indication information may be the aforementioned PEI, but it should not be understood as a limitation on the naming of the indication information in this application.

[0145] In an embodiment of the present application, the first terminal device obtains information about the group to which the second terminal device belongs based on the first information sent by the second terminal device, and then the first terminal device can monitor indication information according to the information about the group to which the second terminal device belongs, and the indication information is used to indicate monitoring of the paging opportunity associated with the group, thereby implementing paging indication based on relay technology, and then implementing paging of the second terminal device by the network device. Furthermore, monitoring of the paging opportunity associated with the group through the indication information can reduce the probability of paging false alarms, thereby saving power consumption of paging.

[0146] Figure 6b Schematic diagram of the interaction process of a paging method 200b provided in an embodiment of the present application. Figure 6b As shown, the method 200b may include at least some of the steps S210b to S230b. The following is a detailed description of each step in the method 200b.

[0147] S210b, the second terminal device sends second information to the first terminal device, where the second information is used to determine the group to which the second terminal device belongs. Correspondingly, the first terminal device receives the second information from the second terminal device.

[0148] S220b: The first terminal device determines information about the group to which the second terminal device belongs based on the second information.

[0149] S230b, the first terminal device monitors indication information, where the indication information is used to indicate a paging occasion associated with the monitoring group.

[0150] Among them, the second information may include, for example, 5G-S-TMSI. The information of the group may be determined based on the second information, for example, refer to the description in the aforementioned group division method 2. The second information may be received by the second terminal device from other devices (such as network devices). For example, the network device may send 5G-S-TMSI to the second terminal device via NAS signaling. Of course, this application does not exclude the possibility that the second terminal device itself determines the second information.

[0151] Furthermore, the first terminal device can monitor the paging opportunity associated with the group to which the second terminal device belongs when the indication information indicates to monitor the paging opportunity. When the first terminal device receives the paging information from the paging opportunity, it can send the paging information to the second terminal device to enable the network device to wake up the second terminal device.

[0152] As mentioned above, the paging occasion may be a monitoring occasion for paging information, such as a subframe for monitoring paging information.

[0153] In an embodiment of the present application, the first terminal device determines the information of the group to which the second terminal device belongs based on the second information sent by the second terminal device, and then the first terminal device can monitor the indication information used to indicate the paging opportunity associated with the group according to the information of the group to which the second terminal device belongs, implement the paging indication based on the relay technology, and then implement the paging of the second terminal device by the network device. Furthermore, the indication information indicates that the paging opportunity associated with the group can be monitored to reduce the probability of paging false alarms, thereby reducing the paging receiving power of the terminal.

[0154] Figure 6a The illustrated embodiment is more suitable for scenarios where the processing capability of the first terminal device is weak or the power consumption of the first terminal device needs to be reduced; Figure 6b The illustrated embodiment is more suitable for scenarios where the processing capability of the second terminal device is weak or the power consumption of the second terminal device needs to be reduced.

[0155] Above Figure 6a The embodiments shown and Figure 6b The embodiments shown can be combined with each other. For example, the second terminal device can send the first information and the second information to the first terminal device, and the first terminal device determines the information of the group to which the second terminal device belongs based on the first information and the second information. For example, the first terminal device can determine the information of the group described by the second terminal device based on the second information. When the information of the group determined based on the second information is consistent with the information of the group included in the first information, the first terminal device monitors the indication information; when the information of the group determined based on the second information is inconsistent with the information of the group included in the first information, the indication information based on the information of the group in the first information is determined, or the indication information based on the information of the group determined based on the second information is determined. The present application does not limit this.

[0156] In order to reduce the overhead of indication information, when the historically used cell of the second terminal device is not updated, the second terminal device can use paging advance indication, and when the historically used cell of the second terminal device is updated, the second terminal device can use the traditional paging method. Based on this, when the historically used cell of the second terminal device is not updated, it is necessary to implement paging monitoring of the second terminal device based on the indication information, for example, the first terminal device monitors the indication information, and helps the second terminal device receive the paging information based on the monitored indication information, such as the first terminal device receives the paging information on the PO associated with the group to which the second terminal device belongs, and sends the paging information to the second terminal device, so as to implement the paging of the second terminal device by the network device; when the historically used cell of the second terminal device is updated, the paging monitoring of the second terminal device is not implemented based on the indication information, for example, the first terminal device does not monitor the indication information, and / or the second terminal device does not send the first information and / or the second information to the first terminal device. In this case, the second terminal device can perform paging based on the traditional paging method.

[0157] The historically used cell may include the cell used last and / or the cell used before the cell used last. For ease of understanding, the cell used last is used as an example for explanation, which should not be understood as a limitation on the present application. The cell used last by the second terminal device is not updated, which means the cell that released the radio resource control (RRC) connection with the second terminal device last time, which is the current serving cell. Figure 7 For example, assuming that the second terminal device is UE 1 covered by cell 1, and the RRC connection of UE1 was released by cell 1 last time, the cell last used by the second terminal device is not updated; for another example, assuming that the second terminal device is UE 2 in cell 1, and the RRC connection of UE 2 was released by cell 2 last time, the cell last used by the second terminal device is updated.

[0158] Combine the following Figure 8a and Figure 8b An exemplary description is given. Figure 8a A schematic interactive flow chart of a paging method 300a provided in an embodiment of the present application. Figure 8b This is a schematic diagram of an interactive process of a paging method 300b provided in an embodiment of the present application. It should be understood that Figure 8a and Figure 8b Combined Figure 6a The embodiments shown are used for illustration, but the present application is not limited thereto. Figure 8a and Figure 8b You can also Figure 6b The embodiments shown are combined.

[0159] exist Figure 8a In the illustrated embodiment, the second terminal device determines whether to perform paging monitoring based on the indication information based on the consistency between the cell used in the past and the serving cell. Exemplarily, the second terminal device can determine the consistency between the cell used in the past and the serving cell based on the information of the historical cell and the information of the serving cell. Figure 8b In the illustrated embodiment, the first terminal device determines whether to implement paging monitoring of the second terminal device based on the indication information based on the consistency between the cell historically used by the second terminal device and the serving cell. Exemplarily, the first terminal device can determine the consistency between the cell historically used and the serving cell based on the information of the historical cell and the information of the serving cell. Figure 8a and Figure 8b In the illustrated embodiments, the historical cell information is taken as an example to illustrate the information of the cell used last time.

[0160] exist Figure 8a In S310a, the second terminal device may send the first information according to the third information, and the third information may include at least one of the information of the serving cell, the information of the last used cell, and the cell update information, wherein the cell update information is used to indicate that the last used cell of the second terminal device has not been updated or to indicate that the last used cell of the second terminal device has been updated. Exemplarily, the second terminal device may determine whether the last used cell of the second terminal device is consistent with the serving cell according to the third information, and if consistent, the second terminal device may send the first information (or the second information) to the first terminal device.

[0161] The system information may include the third information. The second terminal device may determine the third information through the system information broadcast by the network device. Exemplarily, the cell update information may be included in the RRC release information, such as when the RRC release information includes an indication that the last used cell has not been updated (noLastCellUpdate), the second terminal device does not update the last used cell, and when the RRC release information does not include an indication that the last used cell has not been updated (noLastCellUpdate), the second terminal device updates the last used cell.

[0162] exist Figure 8a In S320a, the first terminal device monitors the instruction information in the same manner as Figure 6a and Figure 6b Similar, for the sake of brevity no further description is given.

[0163] In some embodiments of the above-mentioned S310a, the second terminal device can determine whether the cell historically used by the second terminal device is consistent with the service cell of the second terminal device based on one or more of the system information, the information of the historical cell and the information of the service cell, and send the first information (and / or the second information) to the first terminal device when it is determined that the cell last used by itself is consistent with the service cell.

[0164] Exemplarily, when the system information includes the first indication, the second terminal device can determine whether the last used cell of the second terminal device is consistent with the serving cell of the second terminal device, and when it is determined that the last used cell of the second terminal device is consistent with the serving cell, send the first information (or the second information) to the first terminal device. The first indication can be used to indicate the start of a mechanism to reduce the overhead of the indication information. In other words, when the system information includes the first indication, based on the consistency between the last used cell of the second terminal device and the serving cell, it is determined whether to monitor the paging time associated with the group to which the second terminal device belongs through the indication information (such as PEI). When the system information does not include the first indication, regardless of the consistency between the last used cell of the second terminal device and the serving cell, the paging time associated with the group to which the second terminal device belongs is monitored through the indication information (such as PEI). Optionally, the first indication can be the last used cell only in the system information (such as SIB 1).

[0165] exist Figure 8b In S310b, the second terminal device sends fourth information to the first terminal device, the fourth information being used to indicate the cell last used by the second terminal device, and correspondingly, the first terminal device receives the fourth information from the second terminal device, so that the first terminal device can determine the consistency between the cell last used by the second terminal device and the serving cell of the second terminal device.

[0166] exist Figure 8b In S320b of the embodiment, the second terminal device sends the first information (or the second information) to the first terminal device, which is implemented in the same manner as Figure 6a S310a (or Figure 6b The S320b) in FIG. 1 is the same or similar and will not be described in detail for the sake of brevity.

[0167] The embodiment of the present application does not limit the execution sequence of the above S310b and S320b. For example, S310b and S320b can be executed in sequence or synchronously. When S310b and S320b are executed in sequence, the present application does not limit the execution sequence of the two.

[0168] exist Figure 8bIn S330b, the first terminal device monitors the indication information according to the third information. The third information has been described in the above example. The information of the last used cell in the third information can be determined from the fourth information sent by the second terminal device.

[0169] Exemplarily, the first terminal device may determine whether the cell last used by the second terminal device is consistent with the serving cell based on the third information. If consistent, the first terminal device may monitor the indication information. Figure 8a The illustrated embodiment is described, and will not be described again for the sake of brevity. The first terminal device can determine the third information through the system information broadcast by the network device.

[0170] In some embodiments of the above S330b, the first terminal device can determine whether the cell historically used by the second terminal device is consistent with the service cell of the second terminal device based on system information, historical cell information and service cell information, and monitor the indication information when it is determined that the historically used cell is consistent with the service cell.

[0171] Exemplarily, when the system information includes the first indication, the first terminal device can determine whether the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, and when it is determined that the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, monitor the indication information, and then implement paging for the second terminal device. Figure 8a The examples are described in detail and will not be elaborated on for brevity.

[0172] In order to ensure the reliability of paging based on indication information (such as PEI), in an embodiment of the present application, before implementing paging monitoring, the second terminal device can determine whether some or all of the first terminal device, the second terminal device, and the network device have the ability to perform paging based on indication information (such as PEI).

[0173] As a first example, the second terminal device may send the first information and / or the second information to the first terminal device when the second terminal device and the network device support paging advance indication. Optionally, the second terminal device may determine whether the network device supports paging advance indication based on system information.

[0174] Optionally, the second terminal device does not send the first information and / or the second information when the second terminal device or the network device does not support the paging advance indication.

[0175] As a second example, the second terminal device may send the first information and / or the second information to the first terminal device when the first terminal device supports the paging advance indication. Optionally, the second terminal device may determine whether the first terminal device supports the paging advance indication based on the information sent by the first terminal device (see the following Fig. 9 ).

[0176] Optionally, the second terminal device does not send the first information and / or the second information if the first terminal device does not support the paging advance indication.

[0177] As a third example, the second terminal device may send the first information and / or the second information to the first terminal device when the first terminal device, the second terminal device and the network device all support paging advance indication.

[0178] Exemplarily, the second terminal device may send the first information and / or the second information to the first terminal device based on the allocation mode information of the second terminal device itself and the allocation mode information of the network device. The allocation mode information may be used to indicate supported allocation modes, and the allocation modes may include a first allocation mode and a second allocation mode. The first allocation mode may be an allocation mode of the network device (such as CN) allocation group in the aforementioned example. Under the first allocation mode, the information of the group to which the second terminal device belongs is configured by the network device; the second allocation mode may be an allocation mode of the group based on the terminal identifier (such as UE ID) corresponding to the second terminal device. Under the second allocation mode, the information of the group to which the second terminal device belongs is determined based on the terminal identifier corresponding to the second terminal device.

[0179] Among them, the allocation method information can be called group allocation method information, sub-group allocation method information, group allocation method information, etc.; the allocation method can be called group allocation method, sub-group allocation method, group allocation method, etc., such as the first allocation method can also be called the first sub-group allocation method, and the second allocation method can also be called the second sub-group allocation method.

[0180] For example, when the second terminal device determines that both the second terminal device itself and the network device support the allocation method of the network device (such as CN) allocating groups, the second terminal device can send the information of the group allocated by the network device (such as CN) to the first terminal device; for another example, when the second terminal device determines that both the second terminal device itself and the network device support the allocation method of allocating groups based on the terminal identifier (such as UEID), the second terminal device can send the information of the group determined based on the terminal identifier (such as UE ID) to the first terminal device.

[0181] It should be understood that the second terminal device can, after confirming that both the second terminal device itself and the network device support paging advance indication, further determine the allocation methods supported by each based on the second terminal device's own allocation method information and the network device's allocation method information; or the second terminal device can determine the allocation methods supported by each based on the second terminal device's own allocation method information and the network device's allocation method information, and there is no limitation on this.

[0182] Combine the following Fig. 9 The following is an exemplary description of determining the capability of the first terminal device. It should be understood that Fig. 9 The method 400 shown in Figure 6a But it should be understood that Fig. 9 The method for determining device capabilities shown may be combined with any of the aforementioned embodiments.

[0183] exist Fig. 9 S430 and S440 are described in the above examples and will not be described again for brevity.

[0184] Before S430 and S440, illustratively, Fig. 9 In S420, the first terminal device may send fifth information to the second terminal device, where the fifth information is used to indicate that the first terminal device supports the paging advance indication. Furthermore, the second terminal device may send the first information if it is determined that the first terminal device supports the paging advance indication.

[0185] For example, in Fig. 9 In S410, the second terminal device may send sixth information to the first terminal device, and the sixth information is used to request to obtain the fifth information. In response to the sixth information, the first terminal device may send the fifth information to the second terminal device. It should be understood that the first terminal device may send the fifth information to the first terminal device without receiving the sixth information, for example, in response to other triggering events or triggering signaling, which is not limited in this application.

[0186] Fig.10 It is a schematic block diagram of a communication device provided in an embodiment of the present application. The communication device 500 may be a terminal or a network device, or a device in a terminal device or a network device, or a device that can be used in combination with a terminal device or a network device. In one possible implementation, the communication device 500 may include a module or unit corresponding to the method / operation / step / action performed by the first terminal device or the second terminal device in the above method embodiment. The module may be a hardware circuit, or software, or a combination of a hardware circuit and software. In one possible implementation, as Fig.10 As shown, the device 500 may include: a transceiver module 510 and a processing module 520 .

[0187] Optionally, the communication device 500 may correspond to the first terminal device in the above method embodiment.

[0188] In which, when the communication device 500 is used to execute the method on the first terminal device side, the transceiver module 510 can be used to receive first information and / or second information from the second terminal device, the first information includes information about the group to which the second terminal device belongs, and the second information is used to determine the group to which the second terminal device belongs; the processing module 520 can be used to monitor indication information, and the indication information is used to indicate monitoring of the paging opportunity associated with the group.

[0189] It should be understood that the specific process executed by each module has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0190] Optionally, the communication device 500 may correspond to the second terminal device in the above method embodiment.

[0191] In which, when the communication device 500 is used to execute the method on the second terminal device side, the processing module 520 can be used to obtain first information and / or second information, the first information includes information of the group to which the second terminal device belongs, or the second information is used to determine the group to which the second terminal device belongs; the transceiver module 510 can be used to send the first information and / or the second information to the first terminal device.

[0192] It should be understood that the specific process executed by each module has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.

[0193] The transceiver module 510 in the communication device 500 may be implemented by a transceiver, for example, corresponding to Fig.11 The transceiver 620 in the communication device 600 shown in FIG. 5 , the processing module 520 in the communication device 500 may be implemented by at least one processor, for example, corresponding to Fig.11 The processor 610 in the communication device 600 shown in FIG.

[0194] When the communication device 500 is a chip or a chip system configured in a communication device (such as a terminal device or a network device), the transceiver module 510 in the communication device 500 can be implemented through an input / output interface, circuit, etc., and the processing module 520 in the communication device 500 can be implemented through a processor, microprocessor or integrated circuit integrated on the chip or chip system.

[0195] Fig.11 is another schematic block diagram of a communication device provided in an embodiment of the present application. Fig.11 As shown, the communication device 600 may include: a processor 610. The processor 610 may be used to execute the method executed by the first terminal device or the second terminal device in the above method embodiment.

[0196] In some possible implementations, the communication device 600 may include a transceiver 620. The transceiver 620 may communicate with the processor 610 through an internal connection path. The processor 610 may control the transceiver 620 to send and / or receive signals.

[0197] In some possible implementations, the communication device 600 may include a memory 630. The memory 630 may communicate with the processor 610 through an internal connection path. The memory 630 and the processor 610 may be integrated together or separately arranged. The memory 630 may also be a memory outside the device. The memory 630 is used to store instructions, and the processor 610 is used to execute the instructions stored in the memory 630 to execute the method in the above method embodiment.

[0198] It should be understood that the communication device 600 may correspond to the terminal device or network device in the above method embodiment, and may be used to execute the various steps and / or processes executed by the first terminal device or the second terminal device in the above method embodiment. Optionally, the memory 630 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. The memory 630 may be a separate device or may be integrated in the processor 610. The processor 610 may be used to execute instructions stored in the memory 630, and when the processor 610 executes instructions stored in the memory, the processor 610 is used to execute the various steps and / or processes of the above method embodiment corresponding to the terminal device or network device.

[0199] Optionally, the communication device 600 is the first terminal device in the above embodiment.

[0200] Optionally, the communication device 600 is the second terminal device in the above embodiment.

[0201] Among them, the transceiver 620 may include a transmitter and a receiver. The transceiver 620 may further include an antenna, and the number of antennas may be one or more. The processor 610 and the memory 630 and the transceiver 620 may be devices integrated on different chips. For example, the processor 610 and the memory 630 may be integrated in a baseband chip, and the transceiver 620 may be integrated in a radio frequency chip. The processor 610 and the memory 630 and the transceiver 620 may also be devices integrated on the same chip. This application does not limit this.

[0202] Optionally, the communication device 600 is a component configured in a terminal device, such as a chip, a chip system, etc.

[0203] Optionally, the communication device 600 is a component configured in a network device, such as a chip, a chip system, etc.

[0204] The transceiver 620 may also be a communication interface, such as an input / output interface, a circuit, etc. The transceiver 620, the processor 610, and the memory 630 may be integrated into the same chip, such as a baseband chip.

[0205] The present application also provides a processing device, including at least one processor, wherein the at least one processor runs a computer program or a logic circuit so that the processing device executes the method executed by the first terminal device or the second terminal device in the above method embodiment. The above processing device may also include a memory, which is used to store the above computer program.

[0206] The embodiment of the present application also provides a processing device, including a processor and an input / output interface. The input / output interface is coupled to the processor. The input / output interface is used to input and / or output information. The information includes at least one of an instruction and data. The processor is used to execute a computer program so that the processing device executes the method executed by the first terminal device or the second terminal device in the above method embodiment.

[0207] The present application also provides a processing device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the processing device executes the method executed by the first terminal device or the second terminal device in the above method embodiment.

[0208] It should be understood that the above-mentioned processing device can be one or more chips. For example, the processing device can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips.

[0209] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be embodied as being executed by a hardware processor, or being executed by a combination of hardware and software modules in a processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0210] It should be noted that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be embodied as a hardware decoding processor to perform, or a combination of hardware and software modules in the decoding processor to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0211] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0212] According to the method provided in the embodiment of the present application, the present application also provides a computer program product, which includes: a computer program or a set of instructions, when the computer program or a set of instructions is run on a computer, the computer executes the method executed by the first terminal device or the second terminal device in the above method embodiment.

[0213] According to the method provided in the embodiment of the present application, the present application also provides a computer-readable storage medium, which stores a program. When the program runs on a computer, the computer executes the method executed by the first terminal device or the second terminal device in the above method embodiment.

[0214] An embodiment of the present application also provides a communication system, including: a system for executing the above-mentioned first terminal device and second terminal device, or including components of the first terminal device and components of the second terminal device.

[0215] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Claims

1. A paging method, characterized in that: Applied to the first terminal device, including: receiving first information or second information from a second terminal device, wherein the first information includes information of a subgroup to which the second terminal device belongs, and the second information is used to determine the subgroup to which the second terminal device belongs; Monitoring indication information, where the indication information is used to indicate monitoring of a paging occasion associated with the subgroup.

2. The method according to claim 1, characterized in that Monitoring instruction information, including: According to the third information, the indication information is monitored, where the third information includes at least one of the information of the serving cell, the information of the last used cell, and the cell update information, and the cell update information is used to indicate that the last used cell of the second terminal device has not been updated.

3. The method according to claim 2, characterized in that The monitoring the indication information according to the third information includes: When the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, the indication information is monitored.

4. The method according to claim 3, characterized in that The method further comprises: When the system information includes a first indication, determine whether the cell last used by the second terminal device is consistent with the service cell of the second terminal device. When the cell last used by the second terminal device under the first indication is consistent with the service cell of the second terminal device, monitor the indication information.

5. The method according to any one of claims 2 to 4, characterized in that: The method further comprises: Receive fourth information from the second terminal device, where the fourth information is used to indicate a cell last used by the second terminal device.

6. The method according to any one of claims 1 to 5, characterized in that: Also includes: Send fifth information to the second terminal device, where the fifth information is used to indicate that the first terminal device supports paging advance indication.

7. The method according to claim 6, characterized in that Also includes: Receive sixth information sent by the second terminal device, where the sixth information is used to request to obtain the fifth information.

8. A paging indication method, characterized in that: Applications to the second terminal device include: Acquire first information or second information, where the first information includes information of the subgroup to which the second terminal device belongs, or the second information is used to determine the subgroup to which the second terminal device belongs; Send the first information or the second information to a first terminal device.

9. The method according to claim 8, characterized in that Sending the first information or the second information to the first terminal device includes: According to the third information, the first information or the second information is sent to the first terminal device, the third information includes at least one of the information of the serving cell, the information of the last used cell, and the cell update information, and the cell update information is used to indicate that the last used cell of the second terminal device has not been updated.

10. The method according to claim 9, characterized in that The sending the first information or the second information to the first terminal device according to the third information includes: When the cell last used by the second terminal device is consistent with the serving cell of the second terminal device, the first information or the second information is sent to the first terminal device.

11. The method according to claim 10, characterized in that The method further comprises: When the system information includes a first indication, determine whether the cell last used by the second terminal device is consistent with the service cell of the second terminal device. Under the first indication, when the cell last used by the second terminal device is consistent with the service cell of the second terminal device, send the first information or the second information.

12. The method according to any one of claims 9 to 11, characterized in that: The method further comprises: Send fourth information to the first terminal device, where the fourth information is used to indicate a cell last used by the second terminal device.

13. The method according to any one of claims 8 to 12, characterized in that: The sending the first information or the second information to the first terminal device includes: When the second terminal device and the network device support paging advance indication, the first information or the second information is sent to the first terminal device.

14. The method according to any one of claims 8 to 13, characterized in that Sending the first information or the second information to the first terminal device includes: When the first terminal device supports paging advance indication, the first information or the second information is sent to the first terminal device.

15. The method according to any one of claims 8 to 14, characterized in that The sending the first information or the second information to the first terminal device includes: The first information or the second information is sent to the first terminal device according to the subgroup allocation mode information of the second terminal device and the subgroup allocation mode information of the network device.

16. The method according to claim 15, characterized in that In the first subgroup allocation mode, the information of the subgroup to which the second terminal device belongs is configured by the core network; or, In the second subgroup allocation mode, the information of the subgroup to which the second terminal device belongs is determined based on the terminal identifier corresponding to the second terminal device.

17. The method according to any one of claims 8 to 16, characterized in that Also includes: Receive fifth information from the first terminal device, where the fifth information is used to indicate that the first terminal device supports paging advance indication.

18. The method according to claim 17, characterized in that Also includes: Send sixth information to the first terminal device, where the sixth information is used to request to obtain the fifth information.

19. A communication device, characterized in that: The method comprises a module for executing the method according to any one of claims 1 to 7, or comprises a module for executing the method according to any one of claims 8 to 18.

20. A communication device, characterized in that: include: A processor, wherein the processor is configured to execute the method according to any one of claims 1 to 18 by running a computer program or by a logic circuit.

21. A communication system, characterized in that: include: A first terminal device for executing the method according to any one of claims 1 to 7, and a second terminal device for executing the method according to any one of claims 8 to 18.

22. A chip, characterized in that: include: A processor, configured to call and execute computer instructions from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 18.

23. A computer-readable storage medium, characterized in that: Used to store computer program instructions, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 18.

24. A computer program product, characterized in that The method comprises computer program instructions which cause a computer to execute the method as claimed in any one of claims 1 to 18.

Images