WO2024169481A1

WO2024169481A1 - Information determination method and apparatus, and device

Info

Publication number: WO2024169481A1
Application number: PCT/CN2024/071904
Authority: WO
Inventors: 赵亚利; 张惠英; 徐昊; 翟海涛
Original assignee: 大唐移动通信设备有限公司
Priority date: 2023-02-17
Filing date: 2024-01-12
Publication date: 2024-08-22
Also published as: CN118524405A

Abstract

Provided in the present disclosure are an information determination method and apparatus, and a device. The information determination method comprises: executing a first operation and/or a second operation according to first information, wherein the first operation comprises: determining a sidelink relay adaptation protocol (SRAP) layer configuration information corresponding to a layer 2 identifier (L2 ID) used by a second terminal for sidelink communication, and the second operation comprises: determining an association relationship between an L2 ID used by the second terminal for sidelink discovery and the L2 ID used by the second terminal for sidelink communication.

Description

Information determination method, device and equipment

This disclosure claims the priority of the Chinese patent application filed with the Chinese Patent Office on February 17, 2023, with application number 202310131549.3 and application name “A method, device and apparatus for determining information”, the entire contents of which are incorporated by reference in this disclosure.

Technical Field

The present disclosure relates to the field of communication technology, and in particular to an information determination method, device and equipment.

Background Art

At present, after the introduction of terminal-to-terminal (UE-to-UE, U2U) and/or terminal-to-network (UE-to-Network, U2N) relay, the remote terminal may switch to the relay terminal. Taking the inter-gNB direct to indirect handover as an example, the process is shown in Figure 1; there is a problem in this process: in step 2.2, the base station gNB will notify the relay terminal (Relay UE) of the remote terminal (Remote UE) of the Layer 2 Identifier (Layer 2 Identifier, L2 ID, i.e. Layer 2 address) and the direct communication interface relay adaptation protocol (Sidelink Relay Adaptation Protocol, SRAP) layer configuration information for the direct communication interface discovery (sidelink discovery); however, in step 4, in the direct communication link (PC5) During the connection establishment process, the remote terminal (remote UE) will use the new L2 ID used for direct communication interface communication (sidelink communication) to establish a unicast connection with the Relay UE; this will cause the Relay UE to be unable to associate the L2 ID used by the remote UE for sidelink discovery with the L2 ID used for sidelink communication, so that the Relay UE (which can be used as the first terminal) cannot determine the SRAP configuration corresponding to the L2 ID used by the remote UE (which can be used as the second terminal) for sidelink communication.

From the above, there is a problem in the related art that the first terminal is unable to determine the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication and/or the first terminal is unable to determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Summary of the invention

The purpose of the present disclosure is to provide an information determination method, device and equipment to solve the problem in the related art that the first terminal is unable to determine the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication and/or the first terminal is unable to determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

In order to solve the above technical problem, the embodiment of the present disclosure provides an information determination method, which is applied to a first terminal, including:

Perform a first operation and/or a second operation according to the first information;

The first operation includes: determining the direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the layer 2 address L2 ID used by the second terminal for direct communication interface communication;

The second operation includes: determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication.

Optionally, when performing the first operation, the first terminal is a relay terminal and the second terminal is a remote terminal.

Optionally, when performing the second operation, the first terminal is a relay terminal, or a terminal performing device-to-device D2D discovery and/or communication; the second terminal is a remote terminal, or a terminal performing D2D discovery and/or communication.

Optionally, determining, according to the first information, SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication includes:

Acquire the first information from a network device or a third terminal, wherein the first information includes an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device to which the second terminal accesses through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.

Optionally, the first information is a radio resource control RRC reconfiguration message received by the first terminal from the network device;

Alternatively, the first information is a direct communication interface RRC reconfiguration message received by the first terminal from the third terminal.

Optionally, determining, according to the first information, an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication further includes:

According to the association relationship and the L2 ID corresponding to the second terminal for direct communication interface discovery The SRAP layer configuration information of the second terminal is used to determine the SRAP layer configuration information corresponding to the L2 ID used for direct communication interface communication by the second terminal.

Optionally, the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

second indication information received by the first terminal through the direct communication interface between the first terminal and the second terminal;

The third indication information received by the first terminal from the network device or the third terminal;

Among them, the first indication information or the second indication information or the third indication information is used to indicate the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Optionally, the second indication information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Optionally, the high layer of the first terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination method, which is applied to a second terminal and includes:

Sending first information to a first device;

The first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication;

Alternatively, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication;

The network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

Optionally, when the first device is a first terminal, sending the first information to the first device includes:

First information is sent to the first terminal through a direct communication interface between the first terminal and the second terminal.

Optionally, the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Optionally, before sending the first information to the first device, the method further includes:

From the high layer of the second terminal, obtain the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Optionally, the high layer of the second terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination method, which is applied to a third terminal or a network device, including:

Sending first information to a first terminal;

The first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

Optionally, for the third terminal, the first information is a direct communication interface RRC reconfiguration message;

For the network device, the first information is an RRC reconfiguration message.

Optionally, the sending the first information to the first terminal includes:

Sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal;

Alternatively, the first information is sent to the first terminal through a Uu interface between the first terminal and the network device.

Optionally, before sending the first information to the first terminal, the method further includes:

receiving second information sent by the second terminal;

The second information includes: an association between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication.

The embodiment of the present disclosure further provides an information determination device, which is a first terminal and includes a memory, a transceiver, and a processor:

A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

According to the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery, the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication is determined.

Optionally, the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination device, which is a second terminal and includes a memory, a transceiver, and a processor:

Sending first information to a first device;

The first device is a first terminal, and the first information includes: the second terminal is used to directly an association relationship between the L2 ID discovered by the communication interface and the L2 ID used by the second terminal for direct communication interface communication;

Optionally, the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Optionally, the operation further includes:

Before sending the first information to the first device, obtain, from the high layer of the second terminal, an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination device, which is a third terminal or a network device, including a memory, a transceiver, and a processor:

Sending first information to a first terminal;

Optionally, the sending the first information to the first terminal includes:

Optionally, the operation further includes:

Before sending the first information to the first terminal, receiving the second information sent by the second terminal;

The embodiment of the present disclosure further provides an information determination device, which is applied to a first terminal and includes:

A first execution unit, configured to execute a first operation and/or a second operation according to the first information;

Optionally, the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination device, which is applied to a second terminal, including:

A first sending unit, configured to send first information to a first device;

Optionally, the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.

Optionally, it also includes:

The first acquisition unit is used to obtain, from the high layer of the second terminal, the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication before sending the first information to the first device.

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination device, which is applied to a third terminal or a network device, including:

A second sending unit, configured to send first information to the first terminal;

Optionally, the sending the first information to the first terminal includes:

Optionally, it also includes:

A first receiving unit, configured to receive second information sent by the second terminal before sending the first information to the first terminal;

The embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to enable the processor to execute the above-mentioned information determination method on the first terminal side; or,

The computer program is used to cause the processor to execute the information determination method on the second terminal side; or

The computer program is used to enable the processor to execute the above-mentioned information determination method on the third terminal side or the network device side.

The beneficial effects of the above technical solution disclosed in the present invention are as follows:

In the above scheme, the information determination method includes performing a first operation and/or a second operation according to the first information; wherein the first operation includes: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication; the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication; the above scheme can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. After obtaining the association relationship between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of relay switching in the related art;

FIG2 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

FIG3 is a schematic diagram of a communication method of network centralized control in an LTE system according to an embodiment of the present disclosure;

FIG4 is a schematic diagram of D2D according to an embodiment of the present disclosure;

Figure 5 is a schematic diagram of UE-to-Network Relay in an embodiment of the present disclosure;

Figure 6 is a schematic diagram of UE-to-UE Relay in an embodiment of the present disclosure;

FIG7 is a schematic diagram of a flow chart of a method for determining information according to an embodiment of the present disclosure;

FIG8 is a second flow chart of the information determination method according to an embodiment of the present disclosure;

FIG9 is a schematic diagram of a third flow chart of the information determination method according to an embodiment of the present disclosure;

FIG10 is a schematic diagram of a specific implementation flow of the information determination method according to an embodiment of the present disclosure;

FIG11 is a second schematic diagram of a specific implementation flow of the information determination method according to an embodiment of the present disclosure;

FIG12 is a schematic diagram of a third specific implementation flow of the information determination method according to an embodiment of the present disclosure;

FIG13 is a fourth schematic diagram of a specific implementation flow of the information determination method according to an embodiment of the present disclosure;

FIG14 is a schematic diagram of the structure of an information determination device according to an embodiment of the present disclosure;

FIG15 is a second structural diagram of an information determination device according to an embodiment of the present disclosure;

FIG16 is a third structural diagram of an information determination device according to an embodiment of the present disclosure;

FIG17 is a fourth structural diagram of an information determination device according to an embodiment of the present disclosure;

FIG18 is a schematic diagram of the structure of an information determination device according to an embodiment of the present disclosure;

FIG19 is a second structural diagram of an information determination device according to an embodiment of the present disclosure;

FIG. 20 is a third structural diagram of the information determination device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

In the embodiments of the present disclosure, the term "and/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

The term "plurality" in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar thereto.

It is explained here that the technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially the fifth generation mobile communication (5th-Generation, 5G) system. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include core network parts, such as Evolved Packet System (EPS), 5G System (5G System, 5GS), etc.

Fig. 2 shows a block diagram of a wireless communication system to which the embodiments of the present disclosure can be applied. The wireless communication system includes a terminal device (referred to as a terminal) and a network device.

The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) and other devices. Wireless terminal devices may also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminal devices, access terminal devices, user terminal devices, user agents, and user devices, which are not limited in the embodiments of the present disclosure.

The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or a long term evolution (LTE) system. The network device may be an evolutionary Node B (eNB or e-NodeB) in the 5G network architecture, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

Network devices and terminal devices can each use one or more antennas for multiple input multiple output (MIMO) transmission. MIMO transmission can be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO) or massive MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

The following first introduces the contents involved in the solution provided by the embodiment of the present disclosure.

(1) Cellular network communication;

As shown in FIG. 3 , conventional wireless communication uses a cellular network communication mode, that is, a terminal and a network-side device transmit uplink and downlink data and/or control information through a Uu interface.

(2) Direct communication;

As shown in Figure 4, direct communication refers to a method in which adjacent terminals can transmit data in a short range through a direct communication link (also called Sidelink or PC5 or bypass). The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a Sidelink interface or PC5 interface or bypass interface).

In addition, according to different purposes, the direct communication interface communication process is divided into:

1) Sidelink discovery: terminals discover each other through direct communication interfaces.

2) Sidelink communication: The terminals communicate directly through the direct communication interface.

(3) Relay;

In order to expand network coverage, you can consider introducing U2N relay, as shown in Figure 5. Similarly, in order to expand the direct communication interface coverage, you can consider introducing U2U relay, as shown in Figure 6. U2N relay and U2U relay can be terminals with relay function. For U2N Relay, relay and network (device) The interface between the relay and the remote terminal uses the Uu interface, and the interface between the relay and the relayed UE (referred to as the remote UE in this solution) uses the direct communication interface (also called the Sidelink interface or PC5 interface or bypass interface). For U2U Relay, the interface between the relay and the remote terminal is the direct communication interface (also called the Sidelink interface or PC5 interface or bypass interface).

After the introduction of U2N and/or U2U relay, there are two types of paths:

1) Direct path: the remote terminal and the network device are connected via a direct Uu interface or two remote terminals are connected via a direct PC5 interface;

2) Indirect path: The remote terminal and the network device are connected via U2N relay or two remote terminals are connected via U2U relay.

Based on the above, the embodiments of the present disclosure provide an information determination method, device and equipment to solve the problem in the related art that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication and/or the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. Among them, the method, device and equipment are based on the same application concept. Since the principles of solving the problems by the method, device and equipment are similar, the implementation of the method, device and equipment can refer to each other, and the repeated parts will not be repeated.

The information determination method provided in the embodiment of the present disclosure is applied to a first terminal, as shown in FIG7 , and includes:

Step 71: Execute the first operation and/or the second operation according to the first information; wherein the first operation includes: determining the direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the layer 2 address L2 ID used by the second terminal for direct communication interface communication; the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication.

Among them, when executing the first operation, the first terminal may be a relay terminal, and the second terminal may be a remote terminal; when executing the second operation, the first terminal may be a relay terminal, or a terminal for device-to-device (Device, D2D) discovery and/or communication; the second terminal may be a remote terminal, or a terminal for D2D discovery and/or communication, but is not limited to this.

In addition, in this solution, the L2 ID is the L2 ID corresponding to the second terminal. When the second terminal is used as a direct communication interface sending terminal, the L2 ID can be used as the source L2 ID of the second terminal; when the second terminal is used as a direct communication interface receiving terminal, the L2 ID can be used as the target L2 ID corresponding to the second terminal, but It is not limited to this.

The information determination method provided in the embodiment of the present disclosure performs a first operation and/or a second operation according to the first information; wherein the first operation includes: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication; the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication; and being able to support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal to determine the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. After obtaining the association relationship between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Wherein, according to the first information, determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication includes: obtaining the first information from a network device or a third terminal, the first information including the L2 ID used by the second terminal for direct communication interface communication and the SRAP layer configuration information corresponding to the L2 ID; wherein the network device is a network device to which the second terminal accesses through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.

In this way, the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication can be accurately obtained.

Furthermore, in the information determination method, the first information is a radio resource control (Radio Resource Control, RRC) reconfiguration message received by the first terminal from the network device; or, the first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface media access control (Medium Access Control, MAC) control information or a direct communication interface physical layer control information received by the first terminal from the third terminal.

wherein, according to the first information, determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication, further comprising: determining an association relationship according to the association relationship and an SRAP corresponding to the L2 ID used by the second terminal for direct communication interface discovery; Layer configuration information, determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication.

This can support obtaining the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication based on the association relationship.

In the disclosed embodiment, the first information includes at least one of the following: first indication information sent by a high-level layer of the first terminal; second indication information received by the first terminal through a direct communication interface between the first terminal and the second terminal; third indication information received by the first terminal from a network device or a third terminal; wherein the first indication information or the second indication information or the third indication information is used to indicate an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication.

Among them, the second indication information includes at least one of the following: direct communication interface signaling (PC5 Signaling, PC5-S); direct communication interface radio resource control PC5-RRC signaling; direct communication interface media access control unit; direct communication interface physical layer signaling.

In the disclosed embodiment, the high layer of the first terminal includes at least one of the following: a vehicle-to-everything (V2X) protocol layer; a PC5-S protocol layer.

The embodiment of the present disclosure further provides an information determination method, which is applied to a second terminal, as shown in FIG8 , and includes:

Step 81: Send first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

Among them, the L2 ID is the L2 ID corresponding to the second terminal. When the second terminal acts as a direct communication interface sending terminal, the L2 ID can be used as the source L2 ID of the second terminal; when the second terminal acts as a direct communication interface receiving terminal, the L2 ID can be used as the target L2 ID corresponding to the second terminal, but is not limited to this.

The information determination method provided by the embodiment of the present disclosure is through sending first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication peer terminal corresponding to the second terminal; and the first terminal can support the first terminal to directly obtain an L2 ID for sidelink communication. D, and/or the first terminal determines the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. Then, after obtaining the association between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Wherein, when the first device is a first terminal, sending the first information to the first device includes: sending the first information to the first terminal through a direct communication interface between the first terminal and the second terminal. The first information here is the second indication information.

In an embodiment of the present disclosure, the first information includes at least one of the following: direct communication interface signaling PC5-S; direct communication interface radio resource control PC5-RRC signaling; direct communication interface media access control unit; direct communication interface physical layer signaling.

Furthermore, before sending the first information to the first device, it also includes: obtaining, from the high layer of the second terminal, the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Among them, the high layer of the second terminal includes at least one of the following: vehicle-to-everything V2X protocol layer; PC5-S protocol layer.

The embodiment of the present disclosure also provides an information determination method, which is applied to a third terminal or a network device. As shown in Figure 9, it includes:

Step 91: Send first information to the first terminal; wherein the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

Among them, the L2 ID is the L2 ID corresponding to the second terminal. When the second terminal acts as a direct communication interface sending terminal, the L2 ID can be used as the source L2 ID of the second terminal; when the second terminal acts as a direct communication interface receiving terminal, the L2 ID can be used as the target L2 ID corresponding to the second terminal, but it is not limited to this.

The information determination method provided by the embodiment of the present disclosure is through sending first information to the first terminal; wherein the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication peer corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the SRAP layer configuration information corresponding to the L2 ID used for sidelink d The first terminal obtains the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then after obtaining the association relationship between the above-mentioned L2 IDs, it can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication of the second terminal and/or the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Among them, for the third terminal, the first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface MAC control information or a direct communication interface physical layer control message. Control information; for the network device, the first information is an RRC reconfiguration message.

In the embodiment of the present disclosure, the sending of the first information to the first terminal includes: sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal; or sending the first information to the first terminal through a Uu interface between the first terminal and the network device. The first information here is the third indication information.

Furthermore, before sending the first information to the first terminal, it also includes: receiving second information sent by the second terminal; wherein the second information includes: an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication.

The second information here refers to the first information sent by the second terminal to the third terminal or the network device; based on this, "sending the first information to the first terminal" can be understood as: determining the first information (to be sent to the first terminal) according to the received second information, and then sending it to the first terminal. Regarding "determining the first information according to the received second information", it may include: according to the second information, obtaining the L2 ID used by the second terminal for sidelink communication, and determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication, and using the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication as the first information; or, according to the second information, obtaining the association relationship between the L2 ID used by the second terminal for sidelink communication and the L2 ID used by the second terminal for sidelink discovery, and using the association relationship as the first information; but it is not limited to this.

Based on the above, this solution involves three embodiments of “performing a first operation”, “performing a second operation” and “performing a first operation and a second operation”, which are described below respectively.

Embodiment 1 (corresponding to executing the first operation);

An embodiment of the present disclosure provides an information determination method, which is applied to a first terminal, comprising: determining, based on the first information, the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication.

The first terminal may be a relay terminal, and the second terminal may be a remote terminal.

The information determination method provided in the embodiment of the present disclosure determines the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication according to the first information; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, thereby solving the problem that the first terminal cannot determine the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication. Configuration problem.

In this way, the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication can be obtained.

In an embodiment of the present disclosure, the first information is a wireless resource control RRC reconfiguration message received by the first terminal from the network device; or, the first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface MAC control information or a direct communication interface physical layer control information received by the first terminal from the third terminal.

The disclosed embodiment also provides an information determination method, which is applied to a second terminal, comprising: sending first information to a first device; wherein the first device is a third terminal or a network device, and the first information includes: an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is through sending first information to the first device; wherein the first device is a third terminal or a network device, and the first information includes: the L2 ID used by the second terminal for direct communication interface communication; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or direct communication counterpart corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2ID used by the second terminal for sidelink communication.

The embodiment of the present disclosure also provides an information determination method, which is applied to a third terminal or a network device, comprising: sending first information to a first terminal; wherein the first information includes: the second terminal is used to directly The L2 ID of the communication interface and the SRAP layer configuration information corresponding to the L2 ID; the network device is the network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or the direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is through sending first information to the first terminal; wherein the first information includes: the L2 ID used by the second terminal for direct communication interface communication and the SRAP layer configuration information corresponding to the L2 ID; the network device is the network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or direct communication counterpart corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication.

Among them, for the third terminal, the first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface MAC control information or a direct communication interface physical layer control information; for the network device, the first information is an RRC reconfiguration message.

Furthermore, before sending the first information to the first terminal, it also includes: receiving second information sent by the second terminal; wherein the second information includes: the L2 ID used by the second terminal for direct communication interface communication.

The second information here refers to the first information sent by the second terminal to the third terminal or the network device; based on this, "sending the first information to the first terminal" can be understood as: determining the first information (to be sent to the first terminal) according to the received second information, and then sending it to the first terminal. "Determining the first information according to the received second information" may include: obtaining the L2 ID used for sidelink communication with the second terminal according to the second information, and determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication, and using the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication as the first information, but not This is not limited to this.

Embodiment 2 (corresponding to executing the second operation);

An embodiment of the present disclosure provides an information determination method, which is applied to a first terminal, comprising: based on the first information, the second operation comprises: determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication.

The first terminal may be a relay terminal, or a terminal for performing device-to-device D2D discovery and/or communication; the second terminal may be a remote terminal, or a terminal for performing D2D discovery and/or communication.

The information determination method provided in the embodiment of the present disclosure is based on the first information, and the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication; being able to support the first terminal to determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then after the first terminal obtains the association relationship between the above-mentioned L2 IDs, it can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Among them, according to the first information, determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication, and also including: according to the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery, determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication.

This can support accurately obtaining the correct SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication based on the association relationship.

In an embodiment of the present disclosure, the first information includes at least one of the following: first indication information sent by a high layer of the first terminal; second indication information received by the first terminal through a direct communication interface between the first terminal and the second terminal; third indication information received by the first terminal from a network device or a third terminal; wherein the first indication information or the second indication information or the third indication information is used to indicate an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication.

Among them, the second indication information includes at least one of the following: direct communication interface signaling PC5-S; direct communication interface radio resource control PC5-RRC signaling; direct communication interface media access control unit; direct communication interface physical layer signaling.

In the disclosed embodiment, the high layer of the first terminal includes at least one of the following: vehicle-to-everything V2X protocol layer; PC5-S protocol layer.

The disclosed embodiment also provides an information determination method, which is applied to a second terminal, comprising: sending first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is through sending first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication peer terminal corresponding to the second terminal; It can support the first terminal to determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. After obtaining the association relationship between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Wherein, when the first device is a first terminal, the sending of the first information to the first device, The method includes: sending first information to the first terminal through a direct communication interface between the first terminal and the second terminal. The first information here is the second indication information.

The disclosed embodiment also provides an information determination method, which is applied to a third terminal or a network device, comprising: sending first information to a first terminal; wherein the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is through sending first information to the first terminal; wherein the first information includes: the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication; the network device is the network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or direct communication counterpart corresponding to the second terminal; it can support the first terminal to determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID after obtaining the association relationship between the above L2 IDs, thereby solving the problem that the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Furthermore, before sending the first information to the first terminal, it also includes: receiving second information sent by the second terminal; wherein the second information includes: an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

The second information here refers to the first information sent by the second terminal to the third terminal or the network device; based on this, "sending the first information to the first terminal" can be understood as: determining the first information (to be sent to the first terminal) according to the received second information, and then sending it to the first terminal. "Determining the first information according to the received second information" may include: according to the second information, obtaining the association relationship between the L2 ID used by the second terminal for sidelink communication and the L2 ID used by the second terminal for sidelink discovery, and using the association relationship as the first information, but is not limited to this.

Embodiment 3 (corresponding to executing the first operation and the second operation);

An embodiment of the present disclosure provides an information determination method, which is applied to a first terminal, comprising: performing a first operation and a second operation according to first information; wherein the first operation comprises: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication; the second operation comprises: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication.

The information determination method provided by the embodiment of the present disclosure performs a first operation and a second operation according to the first information; wherein the first operation includes: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication; the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then the first terminal can obtain the association relationship between the above-mentioned L2 IDs based on the association relationship between the L2 IDs and the sidelink The SRAP layer configuration information corresponding to the discovery L2 ID determines the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Furthermore, based on the first information, determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication, also includes: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication based on the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery.

This can support accurately obtaining the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication based on the association relationship.

The first information includes at least one of the following: first indication information sent by a high layer of the first terminal; second indication information received by the first terminal through a direct communication interface between the first terminal and the second terminal; third indication information received by the first terminal from a network device or a third terminal; wherein the first indication information, the second indication information, or the third indication information is used to indicate an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication.

In an embodiment of the present disclosure, the second indication information includes at least one of the following: direct communication interface signaling PC5-S; direct communication interface radio resource control PC5-RRC signaling; direct communication interface media access control unit; direct communication interface physical layer signaling.

Among them, the high layer of the first terminal includes at least one of the following: vehicle-to-everything V2X protocol layer; PC5-S protocol layer.

The disclosed embodiment also provides an information determination method, which is applied to a second terminal, comprising: sending first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is by sending first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication peer corresponding to the second terminal; it is capable of supporting the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then the first terminal can determine the L2 used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID after obtaining the association relationship between the above L2 IDs. The SRAP layer configuration information corresponding to the ID is used to solve the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used by the second terminal for sidelink communication and the first terminal cannot The issue of not being able to determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

The disclosed embodiment also provides an information determination method, which is applied to a third terminal or a network device, comprising: sending first information to a first terminal; wherein the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination method provided by the embodiment of the present disclosure is through sending first information to the first terminal; wherein the first information includes: the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication and the SRAP layer configuration information corresponding to the L2 ID; the network device is the network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or direct communication peer corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, Furthermore, after the first terminal obtains the association relationship between the above-mentioned L2 IDs, it can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and the problem that the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

The second information here refers to the first information sent by the second terminal to the third terminal or the network device; based on this, when the second information includes the L2 ID used by the second terminal for direct communication interface communication, "sending the first information to the first terminal" can be understood as: determining the first information (to be sent to the first terminal) according to the received second information, and then sending it to the first terminal. Regarding "determining the first information according to the received second information", it may include: according to the second information, obtaining the L2 ID used by the second terminal for sidelink communication, and determining the SRAP layer configuration information corresponding to the L2ID used by the second terminal for sidelink communication; and, according to the second information, obtaining the association relationship between the L2 ID used by the second terminal for sidelink communication and the L2 ID used by the second terminal for sidelink discovery, and using the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication and the association relationship as the first information, but is not limited to this.

The information determination method provided in the embodiment of the present disclosure is illustrated below by way of example.

In view of the above technical problems, and considering the introduction of direct communication interface relay, the present invention implements The example provides an information determination method, which can be specifically implemented as an adaptation layer configuration information determination method, which can be used for a relay terminal in a direct communication interface relay scenario to determine the mapping relationship between the L2 ID used by the remote terminal for direct communication interface communication and the adaptation layer configuration information. This solution mainly involves:

The first terminal determines, based on the first information, the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication (i.e., the above-mentioned SRAP layer configuration information), or,

The first terminal determines, based on the first information, an association between the L2 ID used by the second terminal for direct communication interface discovery (i.e., sidelink discovery) and the L2 ID used by the second terminal for direct communication interface communication (i.e., sidelink communication) (the adaptation layer configuration information discovered by the direct communication interface may be subsequently used as the adaptation layer configuration information for direct communication interface communication, depending on the terminal implementation).

Specifically, this plan includes the following contents:

1. In the case of "the first terminal determines the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication based on the first information", the first terminal is a relay terminal (such as U2U relay or U2N relay) and the second terminal is a remote terminal.

2. In the case of "the first terminal determines the association between the L2ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication based on the first information", the first terminal is a relay terminal or an ordinary terminal for D2D discovery and/or communication, and the second terminal is a remote terminal or an ordinary terminal for D2D discovery and/or communication.

3. The “the first terminal determines, according to the first information, the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication” specifically includes:

The first terminal obtains first information from a network device or a third terminal, wherein the first information includes the adaptation layer (SRAP) configuration information corresponding to the L2 ID of the second terminal for sidelink communication. The network device is a network device accessed by the second terminal through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.

4. The “first terminal determines the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication based on the first information” also includes: the first terminal determines the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication based on the first information; and then determines the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink discovery and the association relationship.

5. For 3, also include one of the following:

(1) For U2N relay, the second terminal sends the L2 ID of the second terminal for sidelink communication to the network device through a measurement report or other Uu interface messages (such as direct communication link terminal information (SidelinkUEInformation)).

(2) For U2U relay, the second terminal sends the L2 ID of the second terminal used for sidelink communication to the third terminal through a measurement report or other direct communication interface message.

6. For 3, also include one of the following:

(1) For U2N relay, the first terminal receives the Uu interface RRC reconfiguration message sent by the network device to obtain the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication (the first information corresponding to the above is the radio resource control RRC reconfiguration message received by the first terminal from the network device).

(2) For U2U relay, the first terminal receives the direct communication interface RRC reconfiguration message sent by the third terminal to obtain the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication (the first information corresponding to the above is the direct communication interface RRC reconfiguration message received by the first terminal from the third terminal).

7. The “first terminal determines, based on the first information, an association between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication”, wherein the “first information” includes, but is not limited to, one of the following:

(1) first indication information sent by a higher layer of the first terminal itself;

(2) second indication information indicated by the second terminal to the first terminal via direct communication interface signaling (corresponding to the second indication information received by the first terminal via the direct communication interface between the first terminal and the second terminal); wherein the direct communication interface signaling includes but is not limited to PC5-S signaling, PC5-RRC signaling, direct communication interface media access control unit (PC5 MAC CE) or direct communication interface physical layer signaling (such as direct communication interface control information (Sidelink Control Information, SCI).

(3) Third indication information from the network device or the third terminal (corresponding to the third indication information received by the first terminal from the network device or the third terminal).

The first indication information, the second indication information, or the third indication information is used to indicate: the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface discovery The association between the communicating L2 IDs.

8. Based on 7, if the "first information" is "the first indication information sent by the high layer of the first terminal itself", it specifically includes: the first terminal obtains the first indication information from the high layer of the terminal (such as the V2X protocol layer or the PC5-S protocol layer).

9. Based on 7, if the "first information" is "the second indication information indicated by the second terminal to the first terminal through direct communication interface signaling", it specifically includes: the second terminal obtains the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication from the terminal high layer (such as the V2X protocol layer or the PC5-S protocol layer) (of the second terminal itself), and then the second terminal sends the second indication information to the first terminal through direct communication interface signaling (corresponding to the above-mentioned second terminal sending the first information to the first terminal through the direct communication interface between the first terminal and the second terminal).

10. Based on 7, if the "first information" is the "third indication information from the network device or the third terminal", it specifically includes: the second terminal obtains the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication from the terminal high layer (such as the V2X protocol layer or the PC5-S protocol layer) (of the second terminal itself), and then the second terminal notifies the network device (U2N relay scenario) or the third terminal (corresponding to the third terminal or the network device receiving the second information sent by the second terminal), and the network device or the third terminal then sends the third indication information to the first terminal (corresponding to the third terminal or the network device sending the first information to the first terminal).

The following is a specific example of this solution.

Example 1: In the U2N relay scenario, the first terminal directly obtains the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication from the network device.

As shown in FIG10 , the solution of this example includes the following steps:

Step 1: The second terminal sends first information to the network device.

For U2N relay, the second terminal can send the L2 ID (contained in the first information) used by the second terminal for sidelink communication to the network device through a measurement report or other Uu interface messages (such as SidelinkUEInformation).

Step 2: The network device determines (based on the first information) the adaptation layer (SRAP) configuration information corresponding to the L2 used by the second terminal for sidelink communication (and updates the first information accordingly). sent to the first terminal).

For the scenario where the first terminal wants to switch the target relay, the network device determines the adaptation layer (SRAP) configuration information corresponding to the L2 used by the second terminal for sidelink communication.

Step 3: The first terminal receives first information from the network device.

The first terminal obtains first information from a network device, wherein the first information includes: adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication. The network device is a network device accessed by the second terminal through the first terminal.

Example 2: In the U2U relay scenario, the first terminal directly obtains the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication from the third terminal.

As shown in FIG11 , the solution of this example includes the following steps:

Step 1: The second terminal sends first information to the third terminal.

For U2U relay, the second terminal can send the L2 ID (contained in the first information) used by the second terminal for sidelink communication to the third terminal through a measurement report or other direct communication interface message.

Step 2: The third terminal (based on the first information) determines the adaptation layer (SRAP) configuration information corresponding to L2 used by the second terminal for sidelink communication (and updates the first information accordingly and sends it to the first terminal).

For the scenario where the first terminal wants to switch the target relay, the third terminal determines the adaptation layer (SRAP) configuration information corresponding to L2 used by the second terminal for sidelink communication.

Step 3: The first terminal receives first information from the third terminal.

The first terminal obtains first information from the third terminal, wherein the first information includes: the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication. The third terminal is a target communication terminal accessed by the second terminal through the first terminal (i.e., the third terminal is a target terminal for the second terminal to communicate through the first terminal).

Example 3: The “first information” is “the first indication information sent by the high layer of the first terminal itself”.

In this example, the first terminal high layer (V2X protocol layer or PC5-S protocol layer) can determine the above association relationship based on the user information identifier (User Info ID) contained in the sidelink discovery message received from the first terminal and the User Info ID contained in the sidelink communication message: if the two (i.e., the User Info ID contained in the sidelink discovery message and the sidelink communication If the User Info ID included in the message is the same, it is determined that the sender of the sidelink discovery message and the sidelink communication message is the same second terminal, thereby determining the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Optionally, for the relay scenario, the first terminal may also determine the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication based on the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink discovery received from the network device (U2N scenario) or the third terminal (U2U relay scenario) or the second terminal (U2U relay scenario) and the association relationship.

Example 4: The “first information” is “second indication information indicated by the second terminal to the first terminal via direct communication interface signaling”.

As shown in FIG12 , the solution of this example includes the following steps:

Step 1: The second terminal sends first information to the first terminal.

The second terminal obtains the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication from the terminal high layer (such as the V2X protocol layer or the PC5-S protocol layer), and then the second terminal sends the second indication information (i.e., the first information) to the first terminal through the direct communication interface signaling.

Step 2: The first terminal determines the adaptation layer configuration information corresponding to the L2 ID used by the second terminal for sidelink communication.

After receiving the first information, the first terminal determines the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Example 5: The "first information" is "third indication information from the network device or the third terminal".

As shown in FIG13 , the solution of this example includes the following steps:

Step 1: The second terminal sends third indication information to the network device or the third terminal.

The second terminal obtains the second terminal from the terminal high layer (such as the V2X protocol layer or the PC5-S protocol layer). The association relationship between the L2 ID used for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and then the second terminal sends a third indication message to the network device (U2N relay scenario) or the third terminal (U2U relay scenario) (corresponding to the third terminal or network device receiving the second information sent by the second terminal).

Step 2: The network device or the third terminal determines the association between the L2ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication (i.e., determines the correspondence between the L2 ID used by the second terminal for sidelink communication and sidelink discovery).

When the network device or the third terminal receives the third indication information in step 1, the network device or the third terminal determines the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

Step 3: The network device or the third terminal sends the first information to the first terminal.

Optionally, for the relay scenario, the first terminal may also determine the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink communication based on the adaptation layer (SRAP) configuration information corresponding to the L2 ID used by the second terminal for sidelink discovery and received from the network device (U2N scenario) or the third terminal (U2U relay scenario) or the second terminal (U2U relay scenario) and the association relationship.

From the above, the embodiments of the present disclosure provide a method for determining "SRAP configuration corresponding to L2 ID used by remote UE for sidelink communication" in a direct communication interface relay scenario (such as U2N or U2U relay scenario), thereby ensuring that the relay can determine the SRAP configuration when the remote UE changes the relay, thereby ensuring that the system can operate normally.

The embodiment of the present disclosure further provides an information determination device, which is a first terminal, as shown in FIG14 , including a memory 141, a transceiver 142, and a processor 143:

The memory 141 is used to store computer programs; the transceiver 142 is used to send and receive data under the control of the processor 143; the processor 143 is used to read the computer program in the memory 141 and perform the following operations:

The first operation includes: determining a layer 2 address for direct communication interface communication by the second terminal The direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the L2 ID of the address;

The information determination device provided in the embodiment of the present disclosure performs a first operation and/or a second operation according to the first information; wherein the first operation includes: determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication; the second operation includes: determining the association relationship between the layer 2 address used by the second terminal for direct communication interface discovery and the layer 2 address used by the second terminal for direct communication interface communication; and being able to support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal to determine the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. After obtaining the association relationship between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Specifically, the transceiver 142 is used to receive and send data under the control of the processor 143.

Among them, in Figure 14, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 143 and various circuits of memory represented by memory 141 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators and power management circuits together, which are all well known in the art, so they are not further described herein. The bus interface provides an interface. The transceiver 142 can be a plurality of components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, optical cables, etc. For different user devices, the user interface 144 can also be an interface that can be connected to the required devices externally and internally, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 143 is responsible for managing the bus architecture and general processing, and the memory 141 can store data used by the processor 143 when performing operations.

Optionally, the processor 143 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a processor. The processor can also adopt a multi-core architecture, such as Field-Programmable Gate Array (FPGA) or Complex Programmable Logic Device (CPLD).

The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

Wherein, when performing the first operation, the first terminal is a relay terminal and the second terminal is a remote terminal.

In an embodiment of the present disclosure, when the second operation is performed, the first terminal is a relay terminal, or a terminal for device-to-device D2D discovery and/or communication; the second terminal is a remote terminal, or a terminal for D2D discovery and/or communication.

The first information includes at least one of the following: first indication information sent by a high-level layer of the first terminal; second indication information received by the first terminal through a direct communication interface between the first terminal and the second terminal; third indication information received by the first terminal from a network device or a third terminal; wherein the first indication information, the second indication information, or the third indication information is used to indicate that the L2 ID used by the second terminal for direct communication interface discovery is the same as the L2 ID used by the second terminal for direct communication interface discovery. The association relationship between the L2 IDs of the communication interfaces.

It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned first terminal side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

The embodiment of the present disclosure further provides an information determination device, which is a second terminal, as shown in FIG15 , including a memory 151, a transceiver 152, and a processor 153:

The memory 151 is used to store computer programs; the transceiver 152 is used to send and receive data under the control of the processor 153; the processor 153 is used to read the computer program in the memory 151 and perform the following operations:

Sending first information to a first device;

The information determination device provided in the embodiment of the present disclosure sends first information to the first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication The invention relates to an association relationship between the L2 IDs used for sidelink communication and/or an L2 ID used for direct communication interface communication by the second terminal; the network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal; the invention can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then after the first terminal obtains the association relationship between the above-mentioned L2 IDs, it can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Specifically, the transceiver 152 is used to receive and send data under the control of the processor 153.

Among them, in Figure 15, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 153 and various circuits of memory represented by memory 151 are linked together. The bus architecture can also link various other circuits such as peripherals, regulators, and power management circuits together, which are all well known in the art, so they are not further described herein. The bus interface provides an interface. The transceiver 152 can be a plurality of components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables. For different user devices, the user interface 154 can also be an interface that can be connected to the required devices externally and internally, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 153 is responsible for managing the bus architecture and general processing, and the memory 151 can store data used by the processor 153 when performing operations.

Optionally, the processor 153 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

Wherein, when the first device is a first terminal, the sending of the first information to the first device, The method includes sending first information to the first terminal through a direct communication interface between the first terminal and the second terminal.

Furthermore, the operation also includes: before sending the first information to the first device, obtaining, from the high layer of the second terminal, an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.

It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned second terminal side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

The embodiment of the present disclosure further provides an information determination device, which is a third terminal, as shown in FIG16 , including a memory 161, a transceiver 162, and a processor 163:

The memory 161 is used to store computer programs; the transceiver 162 is used to send and receive data under the control of the processor 163; the processor 163 is used to read the computer program in the memory 161 and perform the following operations:

Sending first information to a first terminal;

The third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination device provided in the embodiment of the present disclosure sends first information to the first terminal; wherein the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID; the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is The relay terminal or direct communication counterpart corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then after the first terminal obtains the association between the above-mentioned L2 IDs, it can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

In the case where the information determination device is implemented as a third terminal, specifically, the transceiver 162 is used to receive and send data under the control of the processor 163 .

Among them, in Figure 16, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 163 and various circuits of memory represented by memory 161 are linked together. The bus architecture can also link various other circuits such as peripherals, regulators, and power management circuits together, which are all well known in the art, so they are not further described herein. The bus interface provides an interface. The transceiver 162 can be a plurality of components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, and these transmission media include transmission media such as wireless channels, wired channels, and optical cables. For different user devices, the user interface 164 can also be an interface that can be connected to the required devices externally and internally, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 163 is responsible for managing the bus architecture and general processing, and the memory 161 can store data used by the processor 163 when performing operations.

Optionally, the processor 163 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

The first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface MAC control information or a direct communication interface physical layer control information.

In the embodiment of the present disclosure, the sending of the first information to the first terminal includes: The direct communication interface between the third terminal sends the first information to the first terminal.

Furthermore, the operation also includes: before sending the first information to the first terminal, receiving second information sent by the second terminal; wherein the second information includes: an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication.

It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned third terminal side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

The embodiment of the present disclosure further provides an information determination device, which is a network device, as shown in FIG17 , including a memory 171, a transceiver 172, and a processor 173:

The memory 171 is used to store computer programs; the transceiver 172 is used to send and receive data under the control of the processor 173; the processor 173 is used to read the computer program in the memory 171 and perform the following operations:

Sending first information to a first terminal;

The network device is a network device to which the second terminal accesses through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.

The information determination device provided in the embodiment of the present disclosure sends the first information to the first terminal; wherein the first information includes: the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication and the SRAP layer configuration information corresponding to the L2 ID; the network device is a network device accessed by the second terminal through the first terminal, and the first terminal is a relay terminal or a direct communication peer corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then the first terminal can determine the association relationship between the above-mentioned L2 IDs based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID after obtaining the association relationship between the above-mentioned L2 IDs. The SRAP layer configuration information corresponding to the L2 ID used for sidelink communication by the first terminal is obtained, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Specifically, the transceiver 172 is used to receive and send data under the control of the processor 173.

Among them, in Figure 17, the bus architecture can include any number of interconnected buses and bridges, specifically one or more processors represented by processor 173 and various circuits of memory represented by memory 171 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits together, which are all well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 172 can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission media include transmission media such as wireless channels, wired channels, and optical cables. The processor 173 is responsible for managing the bus architecture and general processing, and the memory 171 can store data used by the processor 173 when performing operations.

The processor 173 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

The first information is an RRC reconfiguration message.

In the embodiment of the present disclosure, sending the first information to the first terminal includes: sending the first information to the first terminal through a Uu interface between the first terminal and the network device.

It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

The embodiment of the present disclosure further provides an information determination device, which is applied to a first terminal, as shown in FIG18 , and includes:

A first execution unit 181, configured to execute a first operation and/or a second operation according to the first information;

In the embodiment of the present disclosure, the first information is a radio resource control RRC reconfiguration message received by the first terminal from the network device; or, the first information is a direct communication interface RRC reconfiguration message or a PC5-RRC message or a direct communication interface RRC reconfiguration message received by the first terminal from the third terminal. MAC control information of the port or physical layer control information of the direct communication interface.

The embodiment of the present disclosure further provides an information determination device, which is applied to a second terminal, as shown in FIG19 , and includes:

A first sending unit 191, configured to send first information to a first device;

The information determination device provided in the embodiment of the present disclosure sends first information to a first device; wherein the first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication; or, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by a second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or, an L2 ID used by the second terminal for direct communication interface communication; the network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication peer terminal corresponding to the second terminal; and the first terminal can support the first terminal to directly obtain an L2 ID for sidelink communication. D, and/or the first terminal determines the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication. Then, after obtaining the association between the above-mentioned L2 IDs, the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID, thereby solving the problem that the first terminal cannot determine the SRAP configuration corresponding to the L2 ID used for sidelink communication by the second terminal and/or the first terminal cannot determine the association between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication.

Wherein, when the first device is a first terminal, sending the first information to the first device includes: sending the first information to the first terminal through a direct communication interface between the first terminal and the second terminal.

Furthermore, the information determination apparatus further includes: a first acquisition unit, which is used to acquire, from a high layer of the second terminal, a relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication before sending the first information to the first device. Connection relationship.

The embodiment of the present disclosure further provides an information determination device, which is applied to a third terminal or a network device, as shown in FIG20 , including:

The second sending unit 201 is used to send first information to the first terminal;

The information determination device provided in the embodiment of the present disclosure sends the first information to the first terminal; wherein the first information includes: the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication and the SRAP layer configuration information corresponding to the L2 ID; the network device is the network device accessed by the second terminal through the first terminal, the third terminal is the target terminal for the second terminal to communicate through the first terminal, and the first terminal is the relay terminal or the direct communication peer corresponding to the second terminal; it can support the first terminal to directly obtain the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication, and/or the first terminal determines the association relationship between the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication, and then the first terminal can determine the SRAP layer configuration information corresponding to the L2 ID used for sidelink communication based on the association relationship between the L2 IDs and the SRAP layer configuration information corresponding to the sidelink discovery L2 ID after obtaining the association relationship between the above L2 IDs, thereby solving the problem that the first terminal cannot determine the L2 ID used by the second terminal for sidelink communication The SRAP configuration corresponding to the ID and/or the first terminal cannot determine the L2 ID used for sidelink discovery and the L2 ID used for sidelink communication The problem of the relationship between them.

In the embodiment of the present disclosure, sending the first information to the first terminal includes: sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal; or sending the first information to the first terminal through a Uu interface between the first terminal and the network device.

Furthermore, the information determination device also includes: a first receiving unit, used to receive second information sent by the second terminal before sending the first information to the first terminal; wherein the second information includes: an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication, and/or, the L2 ID used by the second terminal for direct communication interface communication.

It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned third terminal side or network device side method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

It should be noted that the division of units in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure can essentially or partly contribute to the relevant technology or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: USB flash drive, mobile hard disk, read-only memory (Read-Only Memory), etc. Memory (ROM), Random Access Memory (RAM), magnetic disk or CD-ROM, etc., which can store program code.

An embodiment of the present disclosure also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the information determination method on the first terminal side; or, the computer program is used to enable the processor to execute the information determination method on the second terminal side; or, the computer program is used to enable the processor to execute the information determination method on the third terminal side or the network device side.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), etc.), optical storage (such as compact disk (CD), digital video disk (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD), etc.), and semiconductor memory (such as read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid-state drive (Solid State Disk or Solid State Drive, SSD)), etc.

Among them, the embodiments of the information determination method on the first terminal side, the second terminal side, the third terminal side, or the network device side are all applicable to the embodiments of the processor-readable storage medium, and can achieve the same technical effect.

Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

The present disclosure is described with reference to the flowcharts and/or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the processes and/or boxes in the flowchart and/or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine so that the computer can execute the computer program. The instructions executed by the processor of a computer or other programmable data processing device generate means for implementing the functions specified in one or more processes in the flowchart and/or one or more blocks in the block diagram.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowchart and/or one or more blocks in the block diagram.

It should be noted that it should be understood that the division of the above modules is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. For example, the determination module can be a separately established processing element, or it can be integrated in a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called and executed by a processing element of the above-mentioned device. The implementation of other modules is similar. In addition, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASIC), or one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (FPGA), etc. For another example, when a module above is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The terms "first", "second", etc. in the specification and claims of the present disclosure are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present disclosure described here, such as those illustrated or described here, are implemented in a sequence other than the sequence. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. In addition, the use of "and/or" in the specification and claims represents at least one of the connected objects, such as A and/or B and/or C, indicating the inclusion of 7 situations including single A, single B, single C, and both A and B exist, both B and C exist, both A and C exist, and both A, B and C exist. Similarly, the use of "at least one of A and B" in the specification and claims should be understood as "single A, single B, or both A and B exist".

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

An information determination method, applied to a first terminal, comprising:

Perform a first operation and/or a second operation according to the first information;

The first operation includes: determining the direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the layer 2 address L2 ID used by the second terminal for direct communication interface communication;

The second operation includes: determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication.
The information determination method according to claim 1, wherein, when performing the first operation, the first terminal is a relay terminal and the second terminal is a remote terminal.
According to the information determination method according to claim 1, wherein, when performing the second operation, the first terminal is a relay terminal, or a terminal for device-to-device D2D discovery and/or communication; the second terminal is a remote terminal, or a terminal for D2D discovery and/or communication.
The information determination method according to claim 1, wherein, according to the first information, determining the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication comprises:

Acquire the first information from a network device or a third terminal, wherein the first information includes an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device to which the second terminal accesses through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.
The information determination method according to claim 4, wherein:

The first information is a radio resource control RRC reconfiguration message received by the first terminal from the network device;

Alternatively, the first information is a direct communication interface RRC reconfiguration message received by the first terminal from the third terminal.
The information determination method according to claim 1, wherein determining, based on the first information, an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication further comprises:

Determine, according to the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery, the L2 ID corresponding to the second terminal for direct communication interface communication. SRAP layer configuration information.
The information determination method according to claim 1, wherein the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

second indication information received by the first terminal through the direct communication interface between the first terminal and the second terminal;

The third indication information received by the first terminal from the network device or the third terminal;

Among them, the first indication information or the second indication information or the third indication information is used to indicate the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.
The information determination method according to claim 7, wherein the second indication information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination method according to claim 7, wherein the high-level layer of the first terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination method, applied to a second terminal, the method comprising:

Sending first information to a first device;

The first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication;

Alternatively, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication;

The network device is a network device to which the second terminal accesses through the first terminal. The third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.
The information determination method according to claim 10, wherein, when the first device is a first terminal, the sending the first information to the first device comprises:

First information is sent to the first terminal through a direct communication interface between the first terminal and the second terminal.
The information determination method according to claim 11, wherein the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination method according to claim 10, wherein before sending the first information to the first device, it further comprises:

From the high layer of the second terminal, obtain the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.
The information determination method according to claim 13, wherein the high layer of the second terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination method, applied to a third terminal or a network device, comprising:

Sending first information to a first terminal;

The first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.
The information determination method according to claim 15, wherein:

For the third terminal, the first information is a direct communication interface RRC reconfiguration message;

For the network device, the first information is an RRC reconfiguration message.
The information determination method according to claim 15, wherein the sending the first information to the first terminal comprises:

Sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal;

Alternatively, the first information is sent to the first terminal through a Uu interface between the first terminal and the network device.
The information determination method according to claim 15, wherein before sending the first information to the first terminal, it also includes:

receiving second information sent by the second terminal;

The second information includes: an association between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication.
An information determination device, the information determination device is a first terminal, and the information determination device includes a memory, a transceiver, and a processor:

A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

Perform a first operation and/or a second operation according to the first information;

The first operation includes: determining the direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the layer 2 address L2 ID used by the second terminal for direct communication interface communication;

The second operation includes: determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication.
The information determination device according to claim 19, wherein, when performing the first operation, the first terminal is a relay terminal and the second terminal is a remote terminal.
According to the information determination device according to claim 19, wherein, when performing the second operation, the first terminal is a relay terminal, or a terminal for device-to-device D2D discovery and/or communication; the second terminal is a remote terminal, or a terminal for D2D discovery and/or communication.
The information determination device according to claim 19, wherein the first information is determined based on the first information. The SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication includes:

Acquire the first information from a network device or a third terminal, wherein the first information includes an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device to which the second terminal accesses through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.
The information determination device according to claim 22, wherein:

The first information is a radio resource control RRC reconfiguration message received by the first terminal from the network device;

Alternatively, the first information is a direct communication interface RRC reconfiguration message received by the first terminal from the third terminal.
The information determination device according to claim 19, wherein determining, based on the first information, an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication further comprises:

According to the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery, the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication is determined.
The information determination device according to claim 19, wherein the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

second indication information received by the first terminal through the direct communication interface between the first terminal and the second terminal;

The third indication information received by the first terminal from the network device or the third terminal;

Among them, the first indication information or the second indication information or the third indication information is used to indicate the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.
The information determination device according to claim 25, wherein the second indication information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination device according to claim 25, wherein the high layer of the first terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination device, the information determination device is a second terminal, and the information determination device includes a memory, a transceiver, and a processor:

A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

Sending first information to a first device;

The first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication;

Alternatively, the first device is a third terminal or a network device, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication;

The network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.
The information determination device according to claim 28, wherein, when the first device is a first terminal, the sending the first information to the first device comprises:

First information is sent to the first terminal through a direct communication interface between the first terminal and the second terminal.
The information determination device according to claim 29, wherein the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination device according to claim 28, wherein the operation further comprises:

Before sending the first information to the first device, obtain, from the high layer of the second terminal, an association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.
The information determination device according to claim 31, wherein the high layer of the second terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination device, the information determination device is a third terminal or a network device, and the information determination device includes a memory, a transceiver, and a processor:

A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

Sending first information to a first terminal;

The first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.
The information determining device according to claim 33, wherein:

For the third terminal, the first information is a direct communication interface RRC reconfiguration message;

For the network device, the first information is an RRC reconfiguration message.
The information determination device according to claim 33, wherein the sending the first information to the first terminal comprises:

Sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal;

Alternatively, the first information is sent to the first terminal through a Uu interface between the first terminal and the network device.
The information determination device according to claim 33, wherein the operations further comprise:

Before sending the first information to the first terminal, receiving the second information sent by the second terminal;

The second information includes: an association between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication.
An information determination device, applied to a first terminal, comprising:

A first execution unit, configured to execute a first operation and/or a second operation according to the first information;

The first operation includes: determining the direct communication interface relay adaptation protocol SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication;

The second operation includes: determining an association relationship between a layer 2 address used by the second terminal for direct communication interface discovery and a layer 2 address used by the second terminal for direct communication interface communication.
The information determination device according to claim 37, wherein, when performing the first operation, the first terminal is a relay terminal and the second terminal is a remote terminal.
According to the information determination device according to claim 37, wherein, when performing the second operation, the first terminal is a relay terminal, or a terminal for device-to-device D2D discovery and/or communication; the second terminal is a remote terminal, or a terminal for D2D discovery and/or communication.
The information determination device according to claim 37, wherein the first execution unit is further configured to:

Acquire the first information from a network device or a third terminal, wherein the first information includes an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device to which the second terminal accesses through the first terminal, and the third terminal is a target terminal for the second terminal to communicate through the first terminal.
The information determination device according to claim 40, wherein:

The first information is a radio resource control RRC reconfiguration message received by the first terminal from the network device;

Alternatively, the first information is a direct communication interface RRC reconfiguration message received by the first terminal from the third terminal.
The information determination device according to claim 37, wherein the first execution unit is further configured to:

According to the association relationship and the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface discovery, the SRAP layer configuration information corresponding to the L2 ID used by the second terminal for direct communication interface communication is determined.
The information determining device according to claim 37, wherein the first information includes at least one of the following:

first indication information sent by a higher layer of the first terminal;

second indication information received by the first terminal through the direct communication interface between the first terminal and the second terminal;

The third indication information received by the first terminal from the network device or the third terminal;

Among them, the first indication information or the second indication information or the third indication information is used to indicate the association between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication.
The information determining device according to claim 43, wherein the second indication information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination device according to claim 43, wherein the high-level layer of the first terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination device, applied to a second terminal, comprising:

A first sending unit, configured to send first information to a first device;

The first device is a first terminal, and the first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication;

Alternatively, the first device is a third terminal or a network device, and the first information includes: an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication an association relationship between the IDs, and/or an L2 ID used by the second terminal for direct communication interface communication;

The network device is a network device accessed by the second terminal through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, and the first terminal is a relay terminal or a direct communication counterpart corresponding to the second terminal.
The information determination device according to claim 46, wherein, when the first device is a first terminal, the first sending unit is specifically configured to:

First information is sent to the first terminal through a direct communication interface between the first terminal and the second terminal.
The information determining device according to claim 47, wherein the first information includes at least one of the following:

Direct communication interface signaling PC5-S;

Direct communication interface radio resource control PC5-RRC signaling;

Direct communication interface media access control unit;

Direct communication interface physical layer signaling.
The information determination device according to claim 46, further comprising:

The first acquisition unit is used to obtain, from the high layer of the second terminal, the association relationship between the L2 ID used by the second terminal for direct communication interface discovery and the L2 ID used by the second terminal for direct communication interface communication before sending the first information to the first device.
The information determination device according to claim 49, wherein the high layer of the second terminal includes at least one of the following:

Vehicle-to-everything V2X protocol layer;

PC5-S protocol layer.
An information determination device, applied to a third terminal or a network device, comprising:

A second sending unit, configured to send first information to the first terminal;

The first information includes: an association relationship between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication and SRAP layer configuration information corresponding to the L2 ID;

The network device is a network device to which the second terminal accesses through the first terminal, the third terminal is a target terminal for the second terminal to communicate through the first terminal, The end is a relay terminal or a direct communication peer end corresponding to the second terminal.
The information determining device according to claim 51, wherein:

For the third terminal, the first information is a direct communication interface RRC reconfiguration message;

For the network device, the first information is an RRC reconfiguration message.
The information determination device according to claim 51, wherein the second sending unit is specifically configured to:

Sending the first information to the first terminal through a direct communication interface between the first terminal and the third terminal;

Alternatively, the first information is sent to the first terminal through a Uu interface between the first terminal and the network device.
The information determination device according to claim 51, further comprising:

A first receiving unit, configured to receive second information sent by the second terminal before sending the first information to the first terminal;

The second information includes: an association between an L2 ID used by the second terminal for direct communication interface discovery and an L2 ID used by the second terminal for direct communication interface communication, and/or an L2 ID used by the second terminal for direct communication interface communication.
A processor-readable storage medium storing a computer program, wherein the computer program is used to cause the processor to execute the information determination method according to any one of claims 1 to 9; or

The computer program is used to cause the processor to execute the information determination method according to any one of claims 10 to 14; or

The computer program is used to cause the processor to execute the information determination method according to any one of claims 15 to 18.