Wireless communication method, network equipment and terminal equipment

Abstract

A wireless communication method, network device and terminal device, the method comprising: a network device obtaining target information, the target information being information related to a connection between a first terminal and a second terminal; wherein the first terminal and the second terminal are connected through a first interface, and the first interface is not an interface defined by a third generation partnership project 3GPP protocol.

Description

[0001] This application is a divisional application of the patent application with application number 202280093617.5 and application name “Wireless communication method, network device and terminal device”. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and specifically to a wireless communication method, network device, and terminal device. Background Art

[0003] In some scenarios, a remote terminal may be connected to the network through multiple paths. For example, the remote terminal may be directly connected to the network and connected to the network through a relay terminal.

[0004] In the related art, the connection between the remote terminal and the relay terminal is based on the interface defined by the 3rd Generation Partnership Project (3GPP) protocol, such as the PC5 interface. In practical applications, the remote UE and the relay UE can also be connected using interfaces not defined by the 3GPP protocol, such as wired connection, wireless LAN (WLAN) connection, Bluetooth (BT) connection, etc.

[0005] Therefore, in a multi-path relay system based on an interface not defined by a 3GPP protocol, how to perform connection management is an issue that needs to be addressed urgently. Summary of the invention

[0006] The present application provides a wireless communication method, a network device and a terminal device, and a remote device can implement connection management such as establishment, release, modification or recovery of a relay connection through the network device.

[0007] In a first aspect, a method for wireless communication is provided, where a network device obtains target information, where the target information is information related to a connection between a first terminal and a second terminal; wherein the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a Third Generation Partnership Project 3GPP protocol.

[0008] In a second aspect, a method for wireless communication is provided, which is applied to a first terminal, wherein the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a Third Generation Partnership Project 3GPP protocol. The method comprises: the first terminal sends first information to a network device, and the first information is information related to the connection between the first terminal and the second terminal.

[0009] According to a third aspect, a method for wireless communication is provided, which is applied to a second terminal, wherein the second terminal and the first terminal are connected via a first interface, and the first interface is not an interface defined by a Third Generation Partnership Project 3GPP protocol. The method comprises: the second terminal sends second information to a network device, and the second information is information related to the connection between the first terminal and the second terminal.

[0010] In a fourth aspect, a network device is provided, which is used to execute the method in the first aspect or any possible implementation of the first aspect. Specifically, the network device includes a unit for executing the method in the first aspect or any possible implementation of the first aspect.

[0011] In a fifth aspect, a terminal device is provided, which is used to execute the method in the second aspect or any possible implementation of the second aspect. Specifically, the terminal device includes a unit for executing the method in the second aspect or any possible implementation of the second aspect.

[0012] In a sixth aspect, a terminal device is provided, which is used to execute the method in the third aspect or any possible implementation of the third aspect. Specifically, the terminal device includes a unit for executing the method in the third aspect or any possible implementation of the third aspect.

[0013] In a seventh aspect, a network device is provided, the network device comprising: a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect or its implementation manners.

[0014] In an eighth aspect, a terminal device is provided, the terminal device comprising: 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 stored in the memory to execute the method in the second aspect or its implementation manner.

[0015] In a ninth aspect, a terminal device is provided, the terminal device comprising: 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 stored in the memory to execute the method in the third aspect or its implementation manner.

[0016] In a tenth aspect, a chip is provided for implementing the method in any aspect of the first to third aspects or in each of their implementations.

[0017] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes a method in any one of the first to third aspects or its various implementations.

[0018] In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to third aspects or any of their implementations.

[0019] In a twelfth aspect, a computer program product is provided, comprising computer program instructions, which enable a computer to execute the method in any one of the first to third aspects above or in each of their implementations.

[0020] In a thirteenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to third aspects or in each of its implementations.

[0021] Based on the above technical solution, the network device can obtain connection-related information between the remote UE and the relay UE. Furthermore, the network device can manage the connection between the remote UE and the network device based on the connection-related information, such as establishing a relay connection between the remote UE and the network device, or modifying, releasing or releasing the relay connection between the remote UE and the network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the transmission protocol stack in the 5G system.

[0024] Figure 3 It is a connection diagram between terminal devices and network devices.

[0025] Figure 4 It is a schematic diagram of a wireless communication method provided according to an embodiment of the present application.

[0026] Figure 5 It is a schematic interaction diagram of a wireless communication method according to an embodiment of the present application.

[0027] Figure 6 It is a schematic interaction diagram of a wireless communication method according to another embodiment of the present application.

[0028] Figure 7 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0029] Figure 8 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0030] Fig. 9 It is a schematic block diagram of another terminal device provided according to an embodiment of the present application.

[0031] Fig.10 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0032] Fig.11 It is a schematic block diagram of a chip provided according to an embodiment of the present application.

[0033] Fig.12 It is a schematic block diagram of a communication device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0036] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0037] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0038] Optionally, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0039] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0040] The terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0041] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

[0042] In the embodiment of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0043] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0044] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0045] As an example but not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0046] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0047] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices located in the coverage area.

[0048] Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0049] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0050] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0051] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0053] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0054] In the embodiments of the present application, "pre-definition" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0055] In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0056] In some scenarios, a layer 2-based UE-to-Network relay UE is introduced, which can directly connect to the network. Specifically, the remote terminal is connected to the access network (e.g., gNB) and the core network (CN) (e.g., 5GC) through the UE-to-Network relay UE.

[0057] Figure 2A schematic diagram of the transmission protocol stack of a 5G system is shown, specifically involving a remote UE, a layer 2 UE-to-Network relay UE, a gNB and a 5GC. Figure 2 As shown, the remote UE may include the following layers: Internet Protocol (IP), Uu-Service Data Adaptation Protocol (SDAP), Uu-Packet Data Convergence Protocol (PDCP), PC5-Radio Link Control (RLC), PC5-Media Access Control (MAC), PC5-Physics (PHY). The UE-to-Network relay UE may include the following layers: Adaptation (ADAPT), PC5-RLC, PC5-MAC, PC5-PHY, Uu-RLC, Uu-MAC, Uu-PHY. The gNB may include the following layers: Uu-SDAP, Uu-PDCP, ADAPT, Uu-RLC, Uu-MAC, Uu-PHY, N3 protocol stack. The 5GC may include the following layers: IP, N3 protocol stack.

[0058] like Figure 2 As shown, the adaptation layer (ADAPT) of the relay UE is set above the control plane and user plane RLC layer of the Uu interface between the relay UE and the gNB. Uu-SDAP, Uu-PDCP and Radio Resource Control (RRC) are terminated between the remote UE and the gNB, and RLC, MAC and PHY are terminated in each link (including the link between the remote UE and the relay UE and the link between the relay UE and the gNB).

[0059] In some embodiments, the link between the relay UE and the network can be called a Uu link, a Uu path, the direct link between the remote UE and the network can also be called a Uu link, a Uu path, and the link between the remote UE and the relay UE can be called a PC5 link, a PC5 path.

[0060] For the uplink of L2 UE-to-Network relay UE:

[0061] The adaptation layer of the relay UE supports uplink bearer mapping between access PC5 RLC channels for transmission on the Uu path between the relay UE and the network and access to the Uu channel. For uplink relay services, different end-to-end bearers (e.g., signaling radio bearers (SRB), data radio bearers (DRB)) of the same remote UE and / or different remote UEs can be N:1 mapped and data multiplexed on one Uu RLC channel.

[0062] The adaptation layer of the relay UE includes the identification information of the remote terminal of the uplink service to be relayed and the identification information of the radio bearer of the remote terminal, so that the gNB can associate the received data packets of the specific Packet Data Convergence Protocol (PDCP) entity associated with the radio bearer of the remote terminal.

[0063] For the downlink of L2 UE-to-Network relay UE:

[0064] The adaptation layer of the relay UE may be used to support downlink bearer mapping at the gNB to map the end-to-end radio bearers (e.g., SRBs, DRBs) of the remote terminal to the Uu RLC channels over the Uu path between the relay UE and the network. The adaptation layer of the relay UE may be used to support downlink N:1 bearer mapping and data multiplexing between multiple end-to-end radio bearers (e.g., SRBs, DRBs) of the remote UE and / or different remote UEs and the Uu RLC channels on the Uu path between the relay UE and the network.

[0065] The adaptation layer of the relay UE includes the identification information of the remote terminal of the downlink service to be relayed. The identification information of the remote terminal's radio bearer and the identification information of the remote terminal need to be placed in the adaptation layer of the relay UE through the gNB so that the relay UE can map the data packets received from the remote terminal's radio bearer to the PC5 RLC channel associated with the radio bearer.

[0066] In some scenarios, the remote UE may be connected to the network via multiple paths, for example, the multiple paths include a direct path between the remote UE and the network, and a relay path connecting the remote UE to the network via a relay UE.

[0067] For example, Figure 3As shown, the remote UE can be connected to the network device through the relay UE and directly connected to the network device through the Uu interface. Among them, the remote UE and the relay UE are connected and communicated through the PC5 interface, and the relay UE and the network device are connected and communicated through the Uu interface. In some scenarios, if there are multi-hop relay UEs, the relay UEs are connected and communicated through the PC5 interface, and the last relay UE and the network device are connected and communicated through the Uu interface.

[0068] In the related art, the connection between the remote UE and the relay UE is based on an interface defined by the 3rd Generation Partnership Project (3GPP) protocol, such as a PC5 interface.

[0069] In practical applications, the remote UE and the relay UE may also be connected using an interface not defined by the 3GPP protocol, such as a wired connection, a wireless local area network (Wireless LAN, WLAN) connection, a Bluetooth (Blue Tooth, BT) connection, etc.

[0070] Therefore, in a multi-path relay system based on an interface not defined by a 3GPP protocol, how to perform connection management is an issue that needs to be addressed urgently.

[0071] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0072] Figure 4 is a schematic interaction diagram of a wireless communication method 200 according to an embodiment of the present application,

[0073] like Figure 4 As shown, the method 200 includes the following contents:

[0074] S210: The network device acquires target information, where the target information is information related to a connection between a first terminal and a second terminal.

[0075] In some embodiments, the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a 3GPP protocol.

[0076] In some embodiments, the first interface may include at least one of the following:

[0077] Wired interface, WLAN interface, WIFI interface, BT interface.

[0078] As an example but not limitation, the information related to the connection between the first terminal and the second terminal may include at least one of the following:

[0079] The information related to the quality of the connection, the status information of the connection (such as whether RLF occurs), the information related to the type of the connection, the information of the device corresponding to the connection, and the identity information of the device corresponding to the connection.

[0080] In some embodiments, the target information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0081] It should be noted that in the embodiments of the present application, the relay connection can also be expressed as a relay link, a relay path, an indirect connection, an indirect link, a relay path, etc.

[0082] In some embodiments, the relay connection may include a connection between the first terminal and the second terminal and a connection between the second terminal and the network device.

[0083] Optionally, the connection between the second terminal and the network device may be a Uu connection. In other words, the second terminal and the network device may be connected via an interface defined by a 3GPP protocol.

[0084] In some embodiments, a direct connection defined by the 3GPP protocol has been established between the first terminal and the network device.

[0085] In some embodiments, a direct connection defined by the 3GPP protocol has been established between the second terminal and the network device.

[0086] It should be noted that in the embodiments of the present application, the direct connection may also be expressed as a direct link, a direct path, a Uu connection, a Uu link, or a Uu path.

[0087] In some embodiments, the target information includes but is not limited to at least one of the following information:

[0088] identification information of the first terminal;

[0089] identification information of the second terminal;

[0090] type information of the connection between the first terminal and the second terminal;

[0091] quality information of a connection between the first terminal and the second terminal;

[0092] identity type information of the first terminal;

[0093] identity type information of the second terminal;

[0094] The target indication information is used to indicate that a radio link failure RLF occurs in the connection between the first terminal and the second terminal.

[0095] In some embodiments, the identification information of the first terminal may be a physical layer identifier of the first terminal, or a layer 2 identifier (L2-ID), or a MAC layer identifier, or a MAC layer address, or other identification information that can uniquely identify the first terminal, which is not limited in the present application.

[0096] In some embodiments, the identification information of the first terminal includes at least one of the following:

[0097] The layer 2 identifier L2-ID of the first terminal, the media access control layer identification information MAC-ID of the first terminal, the MAC layer address of the first terminal, the radio network temporary identifier (Radio Network Temporary Identity, RNTI) of the first terminal, and the 5G shortened temporary mobile user identification code (5G Shorted Temporary Mobile Subscriber Identity, 5G-S-TSMI) of the first terminal.

[0098] In some embodiments, the identification information of the second terminal may be a physical layer identifier of the second terminal, or an L2-ID, or a MAC layer identifier, or a MAC layer address, or other identification information that can uniquely identify the second terminal, which is not limited in the present application.

[0099] In some embodiments, the identification information of the second terminal includes at least one of the following:

[0100] The layer 2 identifier L2-ID of the second terminal, the MAC-ID of the second terminal, the MAC layer address of the second terminal, the RNTI of the second terminal, and the 5G-S-TSMI of the second terminal.

[0101] In some embodiments, the RNTI may include at least one of the following:

[0102] Cell RNTI (C-RNTI), Inactive RNTI I-RNTI.

[0103] In some embodiments, the type information of the connection between the first terminal and the second terminal may be a connection type not defined by the 3GPP protocol, for example, a non-PC5 connection or a non-PC5 interface, which is not limited in the present application.

[0104] In some embodiments, the type information of the connection between the first terminal and the second terminal includes but is not limited to at least one of the following:

[0105] Wired connection, wireless LAN WLAN connection, Bluetooth BT connection, Zigbee connection.

[0106] In some embodiments, the quality information of the connection between the first terminal and the second terminal includes, but is not limited to, at least one of the following:

[0107] Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Channel Quantity Indicator (CQI), Received Signal Strength Indication (RSSI).

[0108] In some embodiments, the quality of the connection between the first terminal and the second terminal may be measured by the first terminal, or may be measured by the second terminal.

[0109] In some embodiments, the identity type information of the first terminal includes at least one of the following: an anchor terminal (Anchor UE), a remote terminal (Remote UE), and an assisted UE.

[0110] In some embodiments, the identity type information of the second terminal includes at least one of the following: an auxiliary terminal, a relay terminal (Relay UE).

[0111] In some embodiments, the target information is obtained from the first terminal and / or the second terminal.

[0112] In some embodiments of the present application, Figure 4 As shown, the S210 includes:

[0113] S201, the network device receives first information sent by the first terminal, where the first information is information related to a connection between the first terminal and the second terminal; and / or

[0114] S202: The network device receives second information sent by the second terminal, where the second information is information related to a connection between the first terminal and the second terminal.

[0115] Correspondingly, the first terminal sends first information to the network device; and / or

[0116] The second terminal sends second information to the network device.

[0117] In some embodiments, the target information is determined based on the first information and / or the second information.

[0118] In some embodiments, the target information includes the first information and / or the second information.

[0119] In some embodiments, the first information includes but is not limited to at least one of the following:

[0120] identification information of the first terminal;

[0121] identification information of the second terminal;

[0122] type information of the connection between the first terminal and the second terminal;

[0123] quality information of a connection between the first terminal and the second terminal;

[0124] identity type information of the first terminal;

[0125] The first indication information is used to indicate that RLF occurs in the connection between the first terminal and the second terminal.

[0126] In some embodiments, the second information includes at least one of the following:

[0127] identification information of the first terminal;

[0128] identification information of the second terminal;

[0129] type information of the connection between the first terminal and the second terminal;

[0130] quality information of a connection between the first terminal and the second terminal;

[0131] identity type information of the second terminal;

[0132] The second indication information is used to indicate that RLF occurs in the connection between the first terminal and the second terminal.

[0133] In some embodiments, the first information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0134] In some embodiments, the second information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0135] In some embodiments of the present application, the method 200 further includes:

[0136] The first terminal sends identification information of the first terminal to the second terminal; and / or

[0137] The second terminal sends identification information of the second terminal to the first terminal.

[0138] That is, the identification information of the second terminal in the first information may be acquired from the second terminal, and the identification information of the first terminal in the second information may be acquired from the first terminal.

[0139] In some embodiments, the identification information of the first terminal may be sent via the first interface.

[0140] For example, the first terminal sends the identification information of the first terminal through at least one of PC5-RRC signaling, PC5-S signaling and adaptation layer control PDU.

[0141] In some embodiments, the identification information of the second terminal may be sent through the first interface.

[0142] For example, the second terminal sends the identification information of the second terminal through at least one of PC5-RRC signaling, PC5-S signaling and adaptation layer control PDU.

[0143] In some embodiments, the identification information of the first terminal in the target information may be determined according to the identification information of the first terminal in the first information and / or the identification information of the first terminal in the second information.

[0144] In some embodiments, the identification information of the second terminal in the target information may be determined according to the identification information of the second terminal in the first information and / or the identification information of the second terminal in the second information.

[0145] In some embodiments, the type information of the connection between the first terminal and the second terminal in the target information can be determined based on the type information of the connection between the first terminal and the second terminal in the first information and / or the type information of the connection between the first terminal and the second terminal in the second information.

[0146] In some embodiments, the quality information of the connection between the first terminal and the second terminal in the target information can be determined based on the quality information of the connection between the first terminal and the second terminal in the first information and / or the quality information of the connection between the first terminal and the second terminal in the second information.

[0147] In some embodiments, the identity type information of the first terminal in the target information may be determined according to the identity type information of the first terminal in the first information.

[0148] In some embodiments, the identity type information of the second terminal in the target information may be determined according to the identity type information of the second terminal in the second information.

[0149] In some embodiments, the target indication information in the target information may be determined according to the first indication information in the first information and / or the second indication information in the second information.

[0150] In some embodiments, the first information is sent by the first terminal itself.

[0151] In some other embodiments, the first information is sent by the first terminal based on an instruction (or trigger) from the network device.

[0152] In some embodiments, the first information is sent when a radio link failure (Radio Link Failure, RLF) occurs in the relay connection between the first terminal and the second terminal.

[0153] That is to say, the first terminal can decide to send the first information on its own, or can send the first information based on the instruction (or trigger) of the network device, or can send the first information under specific circumstances, for example, sending the first information when RLF occurs in the relay connection.

[0154] As an example, the first terminal may send first information to establish a relay connection between the first terminal and the second terminal when service transmission needs to be performed via a relay connection.

[0155] As another example, when RLF occurs in the relay connection between the first terminal and the network device, the first terminal may send first information to modify, release or restore the relay connection between the first terminal and the second terminal.

[0156] In some embodiments, the occurrence of RLF in the relay connection between the first terminal and the network device can be determined by at least one of the PDCP layer, PC5-RRC layer and PC5-S layer of the first terminal, or can be determined by the non-3GPP bottom layer (such as the physical layer) of the first terminal, and further reported by the non-3GPP bottom layer of the first terminal to the higher layer (such as the PDCP layer, PC5-RRC layer or PC5-S layer) of the first terminal.

[0157] It should be understood that the first information can be carried by any uplink information or uplink message, and this application does not limit this.

[0158] As an example but not limitation, the first information is carried by at least one of the following signaling:

[0159] Terminal assistance information (UEAssistanceInformation), sidelink terminal information (SidelinkUEinformation), terminal information response (UEInformationResponse), measurement report message, failure information (failureInformation).

[0160] The measurement reporting message may be a message in a measurement reporting process.

[0161] For example, when the first terminal requests to establish a relay connection between the first terminal and the network device, the first terminal may report the first information using UEAssistanceInformation, SidelinkUEinformation or UEInformationResponse, or may also report the first information during the measurement reporting process.

[0162] For another example, when RLF occurs in the relay connection between the first terminal and the network device, the first terminal may report the first information using UEAssistanceInformation, SidelinkUEinformation, UEInformationResponse or failureInformation, or may report the first information during the measurement reporting process.

[0163] It should be understood that the network device may instruct the first terminal to send the first information through any downlink information or downlink signaling, and this application does not limit this.

[0164] As an example but not limitation, the network device instructs the first terminal to send the first information through a terminal information request (UEInformationRequest) and / or a measurement configuration message. The measurement configuration message may be a message in a measurement configuration process.

[0165] For example, when the network device uses UEInformationRequest to instruct the first terminal to send the first information, the first terminal uses UEInformationResponse to report the first information.

[0166] For another example, when the network device instructs the first terminal to send the first information during the measurement configuration process, the first terminal may report the first information during the measurement reporting process.

[0167] In some embodiments, the second information is sent by the second terminal itself.

[0168] In some other embodiments, the second information is sent by the second terminal based on an instruction (or trigger) from the network device.

[0169] In some embodiments, the second information is sent when RLF occurs in the connection between the first terminal and the second terminal.

[0170] That is to say, the second terminal can decide to send the second information on its own, or can send the second information based on the instruction (or trigger) of the network device, or can send the second information under specific circumstances, for example, sending the second information when RLF occurs in the relay connection.

[0171] In some embodiments, the occurrence of RLF in the connection between the first terminal and the second terminal may be determined by at least one of the PDCP layer, PC5-RRC layer and PC5-S layer of the second terminal, or may be determined by the non-3GPP bottom layer (e.g., physical layer) of the second terminal, and further reported by the non-3GPP bottom layer of the second terminal to the higher layer (e.g., PDCP layer, PC5-RRC layer or PC5-S layer) of the second terminal.

[0172] It should be understood that the second information can be carried by any uplink information or uplink message, and this application does not limit this.

[0173] As an example but not limitation, the second information is carried by at least one of the following signaling:

[0174] Terminal assistance information (UEAssistanceInformation), sidelink terminal information (SidelinkUEinformation), terminal information response (UEInformationResponse), measurement report message, failure information (failureInformation).

[0175] The measurement reporting message may be a message in a measurement reporting process.

[0176] It should be understood that the network device may instruct the second terminal to send the second information by any downlink information or downlink signaling, and this application does not limit this.

[0177] As an example but not limitation, the network device instructs the second terminal to send the second information through a terminal information request (UEInformationRequest) and / or a measurement configuration message. The measurement configuration message may be a message in a measurement configuration process.

[0178] For example, when the network device uses UEInformationRequest to instruct the second terminal to send the second information, the second terminal uses UEInformationResponse to report the first information.

[0179] For another example, when the network device instructs the second terminal to send the second information during the measurement configuration process, the second terminal may report the second information during the measurement reporting process.

[0180] In some embodiments, after the network device receives the first information and / or the second information, it can establish, modify, release or restore the relay connection between the first terminal and the network device according to the first information and / or the second information.

[0181] For example, the network device may issue connection configuration information according to the first information and / or the second information, where the connection configuration information is used to establish, modify, release or restore the relay connection between the first terminal and the network device.

[0182] In some embodiments of the present application, the method 200 further includes:

[0183] S203, the network device sends third information to the first terminal, where the third information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0184] Correspondingly, the first terminal receives the third information.

[0185] In some embodiments, the third information includes at least one of the following:

[0186] identification information of the second terminal;

[0187] index information of the first information, where the index information is used to indicate the first information;

[0188] The first configuration information is used to configure the transmission between the first terminal and the network device through the relay connection.

[0189] In some embodiments, when establishing a relay connection between a first terminal and a network device, the first configuration information can be used to indicate information such as a bearer or service associated with the relay connection, so that the first terminal can transmit services through the corresponding bearer according to the first configuration information.

[0190] As an example but not limitation, the first configuration information is used to configure a target bearer, wherein the transmission corresponding to the target bearer is performed through the relay connection, or in other words, the service corresponding to the target bearer can be transmitted through the second terminal.

[0191] In some other embodiments, the third information may also indicate a modified connection configuration, so that the first terminal may modify the relay connection according to the modified connection configuration, and further may perform data transmission based on the modified relay connection.

[0192] In some further embodiments, the third information may further indicate a connection configuration to be released, so that the first terminal may release the relay connection according to the connection configuration to be released.

[0193] In some embodiments, the third information is determined based on the target information, or the third information is determined based on the first information and / or the second information.

[0194] In some embodiments of the present application, the method 200 further includes:

[0195] S204, the network device sends fourth information to the second terminal, where the fourth information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0196] Correspondingly, the second terminal receives the third information.

[0197] In some embodiments, the fourth information includes at least one of the following:

[0198] identification information of the first terminal;

[0199] index information of the second information, where the index information is used to indicate the second information;

[0200] The second configuration information is used to configure the transmission between the first terminal and the network device via the relay connection.

[0201] In some embodiments, when establishing a relay connection between a first terminal and a network device, the second configuration information can be used to indicate information such as a Uu RLC channel or service associated with the relay connection, so that the second terminal can transmit services through the corresponding Uu RLC channel according to the second configuration information.

[0202] As an example but not limitation, the second configuration information is used to configure a target Uu RLC channel, wherein transmission corresponding to the target Uu RLC channel is performed through the relay connection, or in other words, the service corresponding to the target Uu RLC channel can be transmitted through the second terminal.

[0203] In some embodiments, the fourth information is determined based on the target information, or the fourth information is determined based on the first information and / or the second information.

[0204] In the following, in combination with Embodiment 1 and Embodiment 2, the first terminal is taken as a remote UE and the second terminal is taken as a relay UE to describe the wireless communication method of the embodiment of the present application from the perspective of device interaction.

[0205] Embodiment 1: Establishing a relay connection between a first terminal and a network device

[0206] like Figure 5 As shown, the following steps may be included:

[0207] S301, the remote UE and the relay UE exchange identification information.

[0208] For example, the remote UE may obtain identification information of the relay UE, or identification information related to the identity of the relay UE.

[0209] For another example, the relay UE may obtain identification information of the remote UE, or identification information related to the identity of the remote UE.

[0210] Optionally, the remote UE and the relay UE may be sent via PC5-RRC, PC5-S signaling or adaptation layer control PDU of the first interface.

[0211] Optionally, S302, the network device instructs (or triggers) the remote UE to report first information.

[0212] S303: The remote UE reports first information to the network device.

[0213] In some embodiments, the first information may include at least one of the following:

[0214] identification information of the remote UE;

[0215] The identification information of the relay UE;

[0216] Type information of the connection between the remote UE and the relay UE;

[0217] Quality information of the connection between the remote UE and the relay UE;

[0218] Identity type information of the remote UE.

[0219] In some embodiments, the first information is carried by at least one of the following signaling:

[0220] Terminal assistance information (UEAssistanceInformation), sidelink terminal information (SidelinkUEinformation), terminal information response (UEInformationResponse), measurement reporting message.

[0221] The measurement reporting message may be a message in a measurement reporting process.

[0222] In some embodiments, the first information may include identification information of the relay UE, or may also include identification information of the remote UE and identification information of the relay UE.

[0223] Optionally, the identification information of the remote UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the remote UE.

[0224] Optionally, the identification information of the relay UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the relay UE.

[0225] Optionally, the first information may include connection type information for the first interface, such as wired connection, WLAN connection, BT connection, etc.

[0226] Optionally, the first information may include connection quality information for the first interface, such as RSRP, RSRQ, RSSI, etc.

[0227] Optionally, the first information may include identity type information of the remote UE, such as Anchor UE or remote UE.

[0228] Optionally, S304, the network device instructs (or triggers) the relay UE to report the second information.

[0229] S305: The relay UE reports the second information to the network device.

[0230] In some embodiments, the second information may include at least one of the following:

[0231] identification information of the remote UE;

[0232] The identification information of the relay UE;

[0233] Type information of the connection between the remote UE and the relay UE;

[0234] Quality information of the connection between the remote UE and the relay UE;

[0235] The identity type information of the relay UE.

[0236] In some embodiments, the second information is carried by at least one of the following signaling:

[0237] Terminal assistance information (UEAssistanceInformation), sidelink terminal information (SidelinkUEinformation), terminal information response (UEInformationResponse), measurement reporting message.

[0238] The measurement reporting message may be a message in a measurement reporting process.

[0239] In some embodiments, the second information may include identification information of the remote UE, or may also include identification information of the remote UE and identification information of the relay UE.

[0240] Optionally, the identification information of the remote UE may be a layer 2 ID, a MAC layer ID, a MAC layer address, a C-RNTI, a 5G-S-TMSI, an I-RNTI, etc. of the remote UE.

[0241] Optionally, the identification information of the relay UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the relay UE.

[0242] Optionally, the second information may include connection type information for the first interface, such as wired connection, WLAN connection, BT connection, etc.

[0243] Optionally, the second information may include connection quality information for the first interface, such as RSRP, RSRQ, RSSI, etc.

[0244] Optionally, the second information may include identity type information of the relay UE, for example, as an auxiliary UE or a relay UE.

[0245] Furthermore, the network device sends connection configuration information to the remote UE and the relay UE.

[0246] For example, the network device configures the remote UE to send data and / or signaling through the relay UE according to the first information reported by the remote UE and the second information reported by the relay UE.

[0247] S306: The network device sends third information to the remote UE.

[0248] In some embodiments, the third information includes at least one of the following:

[0249] Identification information of the relay UE, such as layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI;

[0250] Index information of the first information, used to indicate the first information;

[0251] The first configuration information is used to indicate the transmission between the first terminal and the network device through the relay connection.

[0252] Optionally, the third information may also include identification information of the remote UE.

[0253] Optionally, the first configuration information is used to configure bearers or services associated with the relay connection, that is, which bearers or services are transmitted through the relay connection.

[0254] S307: The network device sends fourth information to the relay UE.

[0255] In some embodiments, the fourth information includes at least one of the following:

[0256] Identification information of the remote UE, such as layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI;

[0257] index information of the second information, used to indicate the second information;

[0258] The second configuration information is used to indicate the transmission between the first terminal and the network device through the relay connection.

[0259] Optionally, the second configuration information is used to configure Uu RLC channels or services associated with the relay connection, that is, which Uu RLC channels carry signaling and / or data of the remote UE.

[0260] Optionally, the fourth information may also include identification information of the relay UE.

[0261] Embodiment 2: RLF reporting, modification, release or restoration of the relay connection between the first terminal and the network device

[0262] like Figure 6 As shown, the following steps may be included:

[0263] S311, the remote UE and / or the relay UE determines that RLF occurs.

[0264] In the second embodiment, a relay connection has been established between the remote UE and the network device.

[0265] In some embodiments, the occurrence of RLF in the connection between the first terminal and the second terminal may be determined by at least one of the PDCP layer, PC5-RRC layer and PC5-S layer of the first terminal, or may be determined by the non-3GPP bottom layer (e.g., physical layer) of the first terminal, and further reported by the non-3GPP bottom layer of the first terminal to the higher layer (e.g., PDCP layer, PC5-RRC layer or PC5-S layer) of the first terminal.

[0266] In some embodiments, the occurrence of RLF in the connection between the first terminal and the second terminal can be determined by at least one of the PDCP layer, PC5-RRC layer and PC5-S layer of the second terminal, or can be determined by the non-3GPP bottom layer (such as the physical layer) of the second terminal, and further reported by the non-3GPP bottom layer of the first terminal to the higher layer (such as the PDCP layer, PC5-RRC layer or PC5-S layer) of the second terminal.

[0267] Optionally, S312, the network device instructs (or triggers) the remote UE to report the first information.

[0268] S313, the remote UE reports first information to the network device.

[0269] In some embodiments, the first information may include at least one of the following:

[0270] identification information of the remote UE;

[0271] The identification information of the relay UE;

[0272] Type information of the connection between the remote UE and the relay UE;

[0273] Quality information of the connection between the remote UE and the relay UE;

[0274] Identity type information of the remote UE;

[0275] The first indication information is used to indicate that RLF occurs in the connection between the remote UE and the relay UE.

[0276] In some embodiments, the first information is carried by at least one of the following signaling:

[0277] UEAssistanceInformation, SidelinkUEinformation, UEInformationResponse, measurement reporting message, failureInformation. The measurement reporting message may be a message in the measurement reporting process.

[0278] In some embodiments, the first information may include identification information of the relay UE, or may also include identification information of the remote UE and identification information of the relay UE.

[0279] Optionally, the identification information of the remote UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the remote UE.

[0280] Optionally, the identification information of the relay UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the relay UE.

[0281] Optionally, the first information may include connection type information for the first interface, such as wired connection, WLAN connection, BT connection, etc.

[0282] Optionally, the first information may include connection quality information for the first interface, such as RSRP, RSRQ, RSSI, etc.

[0283] Optionally, the first information may include first indication information, used to indicate that RLF occurs in the connection between the remote UE and the relay UE.

[0284] Optionally, the first information may include identity type information of the remote UE, such as Anchor UE or remote UE.

[0285] Optionally, S314, the network device instructs (or triggers) the relay UE to report the second information.

[0286] S315, the relay UE reports the second information to the network device.

[0287] In some embodiments, the second information may include at least one of the following:

[0288] identification information of the remote UE;

[0289] The identification information of the relay UE;

[0290] Type information of the connection between the remote UE and the relay UE;

[0291] Quality information of the connection between the remote UE and the relay UE;

[0292] Identity type information of the relay UE;

[0293] The second indication information is used to indicate that RLF occurs in the connection between the remote UE and the relay UE.

[0294] In some embodiments, the second information is carried by at least one of the following signaling:

[0295] UEAssistanceInformation, SidelinkUEinformation, UEInformationResponse, measurement reporting message, FailureInformation. The measurement reporting message may be a message in the measurement reporting process.

[0296] In some embodiments, the second information may include identification information of the remote UE, or may also include identification information of the remote UE and identification information of the relay UE.

[0297] Optionally, the identification information of the remote UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the remote UE.

[0298] Optionally, the identification information of the relay UE may be layer 2 ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI, etc. of the relay UE.

[0299] Optionally, the second information may include connection type information for the first interface, such as wired connection, WLAN connection, BT connection, etc.

[0300] Optionally, the second information may include connection quality information for the first interface, such as RSRP, RSRQ, RSSI, etc.

[0301] Optionally, the second information may include identity type information of the relay UE, for example, as an auxiliary UE or a relay UE.

[0302] Optionally, the second information may include second indication information, used to indicate that RLF occurs in the connection between the remote UE and the relay UE.

[0303] Further optionally, the network device modifies, releases or restores the relay connection between the remote UE and the network device according to the first information reported by the remote UE and the second information reported by the relay UE.

[0304] Optionally, S316, the network device sends third information to the remote UE.

[0305] In some embodiments, the third information includes identification information of the relay UE, such as layer 2ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI.

[0306] In some embodiments, the third information includes index information of the first information, for indicating the first information.

[0307] In some embodiments, the third information includes third indication information, which is used to indicate modification, release or restoration of the relay connection between the remote UE and the network device.

[0308] Optionally, the third indication information may indicate a modified connection configuration, or a connection configuration to be released, or a connection configuration to be restored.

[0309] Optionally, the third information may also include identification information of the remote UE.

[0310] S317, the network device sends fourth information to the relay UE.

[0311] In some embodiments, the fourth information includes identification information of the remote UE, such as layer 2ID, MAC-ID, MAC layer address, C-RNTI, 5G-S-TMSI, I-RNTI.

[0312] In some embodiments, the fourth information includes index information of the second information, for indicating the second information.

[0313] In some embodiments, the fourth information includes fourth indication information, which is used to indicate modification, release or restoration of the relay connection between the remote UE and the network device.

[0314] Optionally, the fourth indication information may indicate a modified connection configuration, or a connection configuration to be released, or a connection configuration to be restored.

[0315] In summary, in an embodiment of the present application, the remote UE and / or the relay UE can report connection-related information between the remote UE and the relay UE to the network device. Furthermore, the network device can manage the connection between the remote UE and the network device based on the connection-related information, such as establishing a relay connection between the remote UE and the network device, or modifying, releasing or restoring the relay connection between the remote UE and the network device.

[0316] Combination of the above Figures 4 to 6 , describes in detail the method embodiment of the present application, and the following is combined with Figures 7 to 9 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0317] Figure 7 FIG. 4 shows a schematic block diagram of a network device 400 according to an embodiment of the present application. Figure 7 As shown, the network device 400 includes:

[0318] The processing unit 410 is used to obtain target information, which is information related to the connection between the first terminal and the second terminal; wherein the first terminal and the second terminal are connected through a first interface, and the first interface is not an interface defined by the Third Generation Partnership Project 3GPP protocol.

[0319] In some embodiments, the target information includes at least one of the following information:

[0320] identification information of the first terminal;

[0321] identification information of the second terminal;

[0322] type information of the connection between the first terminal and the second terminal;

[0323] quality information of a connection between the first terminal and the second terminal;

[0324] identity type information of the first terminal;

[0325] identity type information of the second terminal;

[0326] The target indication information is used to indicate that a radio link failure RLF occurs in the connection between the first terminal and the terminal.

[0327] In some embodiments, the identification information of the first terminal includes at least one of the following:

[0328] The layer 2 identifier L2-ID of the first terminal, the media access control layer identification information MAC-ID of the first terminal, the MAC layer address of the first terminal, the cell wireless network temporary identifier C-RNTI of the first terminal, the inactive wireless network temporary identifier I-RNTI of the first terminal, and the 5G shortened temporary mobile user identification code 5G-S-TSMI of the first terminal.

[0329] In some embodiments, the identification information of the second terminal includes at least one of the following:

[0330] L2-ID of the second terminal, MAC-ID of the second terminal, MAC layer address of the second terminal, C-RNTI of the second terminal, I-RNTI of the second terminal, and 5G-S-TSMI of the second terminal.

[0331] In some embodiments, the type information of the connection between the first terminal and the second terminal includes at least one of the following:

[0332] Wired connection, wireless LAN WLAN connection, Bluetooth BT connection.

[0333] In some embodiments, the quality information of the connection between the first terminal and the second terminal includes at least one of the following:

[0334] Reference signal received power RSRP, reference signal received quality RSRQ, signal to interference and noise ratio SINR, channel quality indicator CQI, received signal strength indicator RSSI.

[0335] In some embodiments, the identity type information of the first terminal includes at least one of the following: an anchor terminal, a remote terminal.

[0336] In some embodiments, the identity type information of the second terminal includes at least one of the following: an auxiliary terminal, a relay terminal.

[0337] In some embodiments, the network device further includes:

[0338] a communication unit, configured to receive first information sent by the first terminal, where the first information is information related to a connection between the first terminal and the second terminal; and / or

[0339] Second information sent by the second terminal is received, where the second information is information related to a connection between the first terminal and the second terminal.

[0340] For example, the processing unit 410 may control the communication unit to receive the first information and / or the second information.

[0341] In some embodiments, the target information is determined based on the first information and / or the second information.

[0342] In some embodiments, the first information includes at least one of the following:

[0343] identification information of the first terminal;

[0344] identification information of the second terminal;

[0345] type information of the connection between the first terminal and the second terminal;

[0346] quality information of a connection between the first terminal and the second terminal;

[0347] identity type information of the first terminal;

[0348] The first indication information is used to indicate that RLF occurs in the connection between the first terminal and the second terminal.

[0349] In some embodiments, the second information includes at least one of the following:

[0350] identification information of the first terminal;

[0351] identification information of the second terminal;

[0352] type information of the connection between the first terminal and the second terminal;

[0353] quality information of a connection between the first terminal and the second terminal;

[0354] identity type information of the second terminal;

[0355] The second indication information is used to indicate that RLF occurs in the connection between the first terminal and the second terminal.

[0356] In some embodiments, the target indication information in the target information is determined according to first indication information in the first information and / or second indication information in the second information.

[0357] In some embodiments, the first information is sent by the first terminal itself, or,

[0358] The first information is sent by the first terminal based on an instruction of the network device; or

[0359] The first information is sent when RLF occurs in the connection between the first terminal and the second terminal.

[0360] In some embodiments, the first information is carried by at least one of the following signaling:

[0361] Terminal assistance information UEAssistanceInformation, sidelink terminal information SidelinkUEinformation, terminal information response UEInformationResponse, measurement report message, failure information failureInformation.

[0362] In some embodiments, the indication of the network device is carried by a terminal information request UEInformationRequest and / or a measurement configuration message.

[0363] In some embodiments, the occurrence of RLF in the connection between the first terminal and the second terminal is determined by at least one of a Packet Data Convergence Protocol PDCP layer, a PC5-RRC layer, and a PC5-S layer of the first terminal.

[0364] In some embodiments, the second information is sent by the second terminal itself, or,

[0365] The second information is sent by the second terminal based on an instruction of the network device; or

[0366] The second information is sent when RLF occurs in the connection between the first terminal and the second terminal.

[0367] In some embodiments, the second information is carried by at least one of the following signaling:

[0368] Terminal assistance information UEAssistanceInformation, sidelink terminal information SidelinkUEinformation, terminal information response UEInformationResponse, measurement reporting information, failure information failureInformation.

[0369] In some embodiments, the indication of the network device is carried by a terminal information request UEInformationRequest and / or measurement configuration information.

[0370] In some embodiments, the occurrence of RLF in the connection between the first terminal and the second terminal is determined by at least one of a PDCP layer, a PC5-RRC layer, and a PC5-S layer of the second terminal.

[0371] In some embodiments, the first information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0372] In some embodiments, the second information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0373] In some embodiments, the network device 400 further includes:

[0374] A communication unit is used to send third information to the first terminal, where the third information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0375] In some embodiments, the third information includes at least one of the following:

[0376] identification information of the second terminal;

[0377] index information of the first information, where the index information is used to indicate the first information;

[0378] The first configuration information is used to configure the transmission between the first terminal and the network device via the relay connection.

[0379] In some embodiments, the first configuration information is used to configure a target bearer, wherein a transmission corresponding to the target bearer is performed via the relay connection.

[0380] In some embodiments, the third information is determined based on the target information.

[0381] In some embodiments, the network device 400 further includes:

[0382] A communication unit is used to send fourth information to the second terminal, where the fourth information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0383] In some embodiments, the fourth information includes at least one of the following:

[0384] identification information of the first terminal;

[0385] index information of the second information, where the index information is used to indicate the second information;

[0386] The second configuration information is used to configure the transmission between the first terminal and the network device via the relay connection.

[0387] In some embodiments, the second configuration information is used to configure a target Uu radio link control RLC channel, wherein transmission corresponding to the target Uu RLC channel is performed via the relay connection.

[0388] In some embodiments, the fourth information is determined based on the target information.

[0389] Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0390] It should be understood that the network device 400 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 400 are respectively to implement Figures 4 to 6 For the sake of brevity, the corresponding processes of the network device in the method 200 are not described in detail here.

[0391] Figure 8 FIG. 1 shows a schematic block diagram of a terminal device 1000 according to an embodiment of the present application. Figure 8 As shown, the terminal device 1000 includes:

[0392] A communication unit 1010 is configured to send first information to a network device, wherein the first information is information related to a connection between the terminal device and the second terminal, wherein the terminal device and the second terminal are connected via a first interface, and the first interface is not an interface defined by a third generation partnership project 3GPP protocol.

[0393] In some embodiments, the first information includes at least one of the following:

[0394] identification information of the terminal device;

[0395] identification information of the second terminal;

[0396] type information of the connection between the terminal device and the second terminal;

[0397] quality information of the connection between the terminal device and the second terminal;

[0398] Identity type information of the terminal device;

[0399] The first indication information is used to indicate that a radio link failure RLF occurs in the connection between the terminal device and the second terminal.

[0400] In some embodiments, the identification information of the terminal device includes at least one of the following:

[0401] The layer 2 identifier L2-ID of the terminal device, the media access control layer identification information MAC-ID of the terminal device, the MAC layer address of the terminal device, the cell wireless network temporary identifier C-RNTI of the terminal device, the inactive wireless network temporary identifier I-RNTI of the terminal device, and the 5G shortened temporary mobile user identification code 5G-S-TSMI of the terminal device.

[0402] In some embodiments, the identification information of the second terminal includes at least one of the following:

[0403] L2-ID of the second terminal, MAC-ID of the second terminal, MAC layer address of the second terminal, C-RNTI of the second terminal, I-RNTI of the second terminal, and 5G-S-TSMI of the second terminal.

[0404] In some embodiments, the type information of the connection between the terminal device and the second terminal includes at least one of the following:

[0405] Wired connection, wireless LAN WLAN connection, Bluetooth BT connection.

[0406] In some embodiments, the quality information of the connection between the terminal device and the second terminal includes at least one of the following:

[0407] Reference signal received power RSRP, reference signal received quality RSRQ, signal to interference and noise ratio SINR, channel quality indicator CQI, received signal strength indicator RSSI.

[0408] In some embodiments, the identity type information of the terminal device includes at least one of the following: an anchor terminal, a remote terminal.

[0409] In some embodiments, the first information is sent by the terminal device itself, or,

[0410] The first information is sent by the terminal device based on an instruction of the network device; or

[0411] The first information is sent when RLF occurs in the connection between the terminal device and the second terminal.

[0412] In some embodiments, the first information is carried by at least one of the following signaling:

[0413] Terminal assistance information UEAssistanceInformation, sidelink terminal information SidelinkUEinformation, terminal information response UEInformationResponse, measurement reporting information, failure information failureInformation.

[0414] In some embodiments, the indication of the network device is carried by a terminal information request UEInformationRequest and / or measurement configuration information.

[0415] In some embodiments, the occurrence of RLF in the connection between the terminal device and the second terminal is determined by at least one of a Packet Data Convergence Protocol PDCP layer, a PC5-RRC layer, and a PC5-S layer of the terminal device.

[0416] In some embodiments, the communication unit 1010 is further configured to:

[0417] Receive third information sent by the network device, where the third information is used to establish, modify, release or restore a relay connection between the terminal device and the network device.

[0418] In some embodiments, the third information includes at least one of the following:

[0419] identification information of the second terminal;

[0420] index information of the first information, where the index information is used to indicate the first information;

[0421] The first configuration information is used to configure the transmission between the terminal device and the network device via the relay connection.

[0422] In some embodiments, the first configuration information is used to configure a target bearer, wherein a transmission corresponding to the target bearer is performed via the relay connection.

[0423] In some embodiments, the communication unit 1010 is further used to: send identification information of the terminal device to the second terminal.

[0424] In some embodiments, the identification information of the terminal device is sent via at least one of PC5-RRC signaling, PC5-S signaling, and an adaptation layer control protocol data unit PDU.

[0425] In some embodiments, the communication unit 1010 is further used to: receive identification information of the second terminal sent by the second terminal.

[0426] In some embodiments, the identification information of the second terminal is sent via at least one of PC5-RRC signaling, PC5-S signaling, and adaptation layer control PDU.

[0427] In some embodiments, the first information is used to establish, modify, release or restore a relay connection between the terminal device and the network device.

[0428] Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0429] It should be understood that the terminal device 1000 according to the embodiment of the present application may correspond to the first terminal in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 1000 are respectively to implement Figures 4 to 6 For the sake of brevity, the corresponding process of the first terminal or remote UE in the method 200 is not repeated here.

[0430] Fig. 9 FIG. 1 shows a schematic block diagram of a terminal device 1100 according to an embodiment of the present application. Fig. 9 As shown, the terminal device 1100 includes:

[0431] Communication unit 1110 is used to send second information to the network device, where the second information is information related to the connection between the first terminal and the terminal device, wherein the terminal device and the first terminal are connected through a first interface, and the first interface is not an interface defined by the Third Generation Partnership Project 3GPP protocol.

[0432] In some embodiments, the second information includes at least one of the following:

[0433] identification information of the first terminal;

[0434] identification information of the terminal device;

[0435] type information of the connection between the first terminal and the terminal device;

[0436] quality information of the connection between the first terminal and the terminal device;

[0437] Identity type information of the terminal device;

[0438] The second indication information is used to indicate that RLF occurs in the connection between the first terminal and the terminal device.

[0439] In some embodiments, the identification information of the first terminal includes at least one of the following:

[0440] The layer 2 identifier L2-ID of the first terminal, the media access control layer identification information MAC-ID of the first terminal, the MAC layer address of the first terminal, the cell wireless network temporary identifier C-RNTI of the first terminal, the inactive wireless network temporary identifier I-RNTI of the first terminal, and the 5G shortened temporary mobile user identification code 5G-S-TSMI of the first terminal.

[0441] In some embodiments, the identification information of the terminal device includes at least one of the following:

[0442] The L2-ID of the terminal device, the MAC-ID of the terminal device, the MAC layer address of the terminal device, the C-RNTI of the terminal device, the I-RNTI of the terminal device, and the 5G-S-TSMI of the terminal device.

[0443] In some embodiments, the type information of the connection between the first terminal and the terminal device includes at least one of the following:

[0444] Wired connection, wireless LAN WLAN connection, Bluetooth BT connection.

[0445] In some embodiments, the quality information of the connection between the first terminal and the terminal device includes at least one of the following:

[0446] Reference signal received power RSRP, reference signal received quality RSRQ, signal to interference and noise ratio SINR, channel quality indicator CQI, received signal strength indicator RSSI.

[0447] In some embodiments, the identity type information of the terminal device includes at least one of the following: auxiliary terminal, relay terminal.

[0448] In some embodiments, the second information is sent by the terminal device itself, or,

[0449] The second information is sent by the terminal device based on an instruction of the network device; or

[0450] The second information is sent when RLF occurs in the connection between the first terminal and the terminal device.

[0451] In some embodiments, the second information is carried by at least one of the following signaling:

[0452] Terminal assistance information UEAssistanceInformation, sidelink terminal information SidelinkUEinformation, terminal information response UEInformationResponse, measurement reporting information, failure information failureInformation.

[0453] In some embodiments, the indication of the network device is carried by a terminal information request UEInformationRequest and / or measurement configuration information.

[0454] In some embodiments, the occurrence of RLF in the connection between the first terminal and the terminal device is determined by at least one of a Packet Data Convergence Protocol PDCP layer, a PC5-RRC layer, and a PC5-S layer of the terminal device.

[0455] In some embodiments, the communication unit 1110 is further configured to:

[0456] Receive fourth information sent by the network device, where the fourth information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0457] In some embodiments, the fourth information includes at least one of the following:

[0458] identification information of the first terminal;

[0459] index information of the second information, where the index information is used to indicate the second information;

[0460] The second configuration information is used to configure the transmission between the first terminal and the network device via the relay connection.

[0461] In some embodiments, the second configuration information is used to configure a target Uu radio link control RLC channel, wherein transmission corresponding to the target Uu RLC channel is performed via the relay connection.

[0462] In some embodiments, the communication unit 1110 is further used to: receive identification information of the first terminal sent by the first terminal.

[0463] In some embodiments, the identification information of the first terminal is sent via at least one of PC5-RRC signaling, PC5-S signaling, and adaptation layer control PDU.

[0464] In some embodiments, the communication unit 1110 is further used to: send identification information of the terminal device to the first terminal.

[0465] In some embodiments, the identification information of the terminal device is sent via at least one of PC5-RRC signaling, PC5-S signaling, and an adaptation layer control protocol data unit PDU.

[0466] In some embodiments, the second information is used to establish, modify, release or restore a relay connection between the first terminal and the network device.

[0467] Optionally, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0468] It should be understood that the terminal device 1100 according to the embodiment of the present application may correspond to the second terminal in the embodiment of the method of the present application, and the above and other operations and / or functions of each unit in the terminal device 1100 are respectively to implement Figures 4 to 6 For the sake of brevity, the corresponding process of the second terminal or relay UE in the method 200 is not repeated here.

[0469] Fig.10 It is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. Fig.10 The communication device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0470] Alternatively, if Fig.10 As shown, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0471] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0472] Alternatively, if Fig.10 As shown, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0473] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of the antennas may be one or more.

[0474] Optionally, the communication device 600 may specifically be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0475] Optionally, the communication device 600 may specifically be the first terminal or the second terminal of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the first terminal or the second terminal in each method of the embodiment of the present application, which will not be described again for the sake of brevity.

[0476] Fig.11 It is a schematic structural diagram of the chip of an embodiment of the present application. Fig.11 The chip 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0477] Alternatively, if Fig.11 As shown, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0478] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0479] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0480] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0481] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0482] Optionally, the chip can be applied to the first terminal or the second terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first terminal or the second terminal in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0483] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0484] Fig.12 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. Fig.12 As shown, the communication system 900 includes a remote terminal 910 , a relay terminal 920 and a network device 930 .

[0485] Among them, the remote terminal 910 can be used to implement the corresponding functions implemented by the first terminal or the remote UE in the above method, the relay terminal 920 can be used to implement the corresponding functions implemented by the second terminal or the relay UE in the above method, and the network device 930 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0486] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (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 processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0487] 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 random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (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.

[0488] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0489] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0490] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0491] Optionally, the computer-readable storage medium can be applied to the first terminal or the second terminal in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first terminal or the second terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0492] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0493] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0494] Optionally, the computer program product can be applied to the first terminal or the second terminal in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the first terminal or the second terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0495] The embodiment of the present application also provides a computer program.

[0496] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0497] Optionally, the computer program can be applied to the first terminal or the second terminal in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the first terminal or the second terminal in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0498] 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.

[0499] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0500] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0501] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0502] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0503] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0504] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: The method comprises: The network device acquires target information, where the target information is information related to a connection between the first terminal and the second terminal; The first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by the Third Generation Partnership Project 3GPP protocol.

2. The method according to claim 1, characterized in that The target information includes identification information of the second terminal; The identification information of the second terminal includes the C-RNTI of the second terminal.

3. The method according to claim 1 or 2, characterized in that: The network device obtains target information, including: The network device receives first information sent by the first terminal, where the first information is information related to a connection between the first terminal and the second terminal; Wherein, the target information is determined according to the first information.

4. The method according to claim 3, characterized in that The first information is sent by the first terminal based on an instruction of the network device; The first information is carried by terminal assistance information UEAssistanceInformation.

5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: The network device sends third information to the first terminal, where the third information is used to establish, modify, release or restore a relay connection between the first terminal and the network device; The third information includes identification information of the second terminal.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: The network device sends fourth information to the second terminal, where the fourth information is used to establish, modify, release or restore a relay connection between the first terminal and the network device; The fourth information includes second configuration information for configuring transmission between the first terminal and the network device via a relay connection; The second configuration information is used to configure a target Uu radio link control RLC channel, wherein the transmission corresponding to the target Uu RLC channel is performed through the relay connection.

7. A wireless communication method, characterized in that: Applied to a first terminal, wherein the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a third generation partnership project 3GPP protocol, and the method includes: The first terminal sends first information to a network device, where the first information is information related to a connection between the first terminal and the second terminal.

8. The method according to claim 7, characterized in that The first information includes identification information of the second terminal; The identification information of the second terminal includes the C-RNTI of the second terminal.

9. The method according to claim 7 or 8, characterized in that: The first information is sent by the first terminal based on an instruction of the network device; The first information is carried by terminal assistance information UEAssistanceInformation.

10. The method according to any one of claims 7 to 9, characterized in that: The method further comprises: The first terminal receives third information sent by the network device, where the third information is used to establish, modify, release or restore a relay connection between the first terminal and the network device; The third information includes identification information of the second terminal.

11. A wireless communication method, characterized in that: Applied to a second terminal, wherein the second terminal is connected to the first terminal via a first interface, and the first interface is not an interface defined by a third generation partnership project 3GPP protocol, and the method includes: The second terminal sends second information to the network device, where the second information is information related to the connection between the first terminal and the second terminal.

12. The method according to claim 11, characterized in that The method further comprises: The second terminal receives fourth information sent by the network device, where the fourth information is used to establish, modify, release or restore a relay connection between the first terminal and the network device; The fourth information includes second configuration information for configuring transmission between the first terminal and the network device via a relay connection; The second configuration information is used to configure a target Uu radio link control RLC channel, wherein the transmission corresponding to the target Uu RLC channel is performed through the relay connection.

13. A network device, characterized in that: include: a processing unit, configured to obtain target information, wherein the target information is information related to a connection between the first terminal and the second terminal; The first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by the Third Generation Partnership Project 3GPP protocol.

14. A terminal device, characterized in that: in, The terminal device and the second terminal are connected via a first interface, wherein the first interface is not an interface defined by a third generation partnership project 3GPP protocol, and the terminal device includes: A communication unit is used to send first information to a network device, where the first information is information related to a connection between the terminal device and the second terminal.

15. A terminal device, characterized in that: in, The terminal device and the first terminal are connected via a first interface, the first interface is not an interface defined by the Third Generation Partnership Project 3GPP protocol, and the terminal device includes: A communication unit is used to send second information to a network device, where the second information is information related to a connection between the first terminal and the terminal device.

16. A network device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 6.

17. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 7 to 10.

18. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in claim 11 or 12.

19. A chip, characterized in that: include: A processor, configured to call and run a computer program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 6, or a method as claimed in any one of claims 7 to 10, or a method as claimed in any one of claims 11 or 12.

20. A computer-readable storage medium, characterized in that: Used to store a computer program, the computer program causing a computer to execute the method according to claims 1 to 6, or the method according to any one of claims 7 to 10, or the method according to claim 11 or 12.

21. A computer program product, characterized in that The method comprises computer program instructions which cause a computer to execute the method according to any one of claims 1 to 6, or the method according to any one of claims 7 to 10, or the method according to claim 11 or 12.

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