WO2022001969A1

WO2022001969A1 - Method and apparatus for providing auxiliary information

Info

Publication number: WO2022001969A1
Application number: PCT/CN2021/102805
Authority: WO
Inventors: 才宇; 徐海博; 姚楚婷
Original assignee: 华为技术有限公司
Priority date: 2020-06-30
Filing date: 2021-06-28
Publication date: 2022-01-06
Also published as: CN113873547A

Abstract

A method and an apparatus for providing auxiliary information, which relate to the technical field of communication, and are used for configuring side chain resources for a terminal. The method comprises: a second terminal receiving first information sent by an access network device, wherein the first information is used for indicating a first resource, the first resource is used for a first terminal to carry out side chain communication or the first resource is used for the first terminal to carry out side chain discovery; and the second terminal sending second information to the first terminal, wherein the second information is used for indicating the first resource. The present application is suitable for the configuration process of the side chain resource.

Description

[Title of invention made by ISA pursuant to Rule 37.2] A method and apparatus for providing auxiliary information

This application claims the priority of the Chinese patent application with the application number 202010607563.2 and the application title "A Method for Providing Auxiliary Information and UE" submitted to the State Intellectual Property Office on June 30, 2020, and on August 21, 2020 The priority of the Chinese patent application with the application number 202010851898.9 and the application title "Resource Allocation Method and Device" submitted to the State Intellectual Property Office, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the field of communication technologies, and in particular, to a method for providing assistance information and a UE.

Background technique

Device-to-Device (D2D) communication technology based on cellular network is a technology for direct communication between devices under the control of the network. It is also called Proximity Service (Proximity Service) in 3GPP. ProSe). A ProSe Direct Discovery (ProSe Direct Discovery) technology is defined in ProSe, so that a ProSe user equipment (UE) can discover another or more nearby ProSe UEs without going through any network node. Then, through the ProSe Direct Communication technology, two or more ProSe UEs in the vicinity can communicate directly. Among them, ProSe Direct Discovery is implemented through the sidelink discovery (sidelink discovery) access layer function, and ProSe Direct Communication is implemented through the sidelink communication (sidelink communication) access layer function.

When the neighboring device is within the coverage of the base station, the neighboring device uses the resources broadcasted by the base station to perform side-chain communication or side-chain discovery. When the neighboring device is outside the coverage of the base station, the neighboring device uses preconfigured resources for sidechain communication or sidechain discovery.

Currently, some terminals do not have the ability to establish a connection with a base station. That is, even if these terminals are within the coverage of the base station, they cannot obtain the resources broadcasted by the base station for side chain communication or side chain discovery. However, if these terminals use preconfigured resources for sidechain communication or sidechain discovery within the coverage area of the base station, it will cause interference to the communication of other devices.

Therefore, for a terminal that does not have the ability to connect to the base station, how to obtain the resources configured by the base station for side chain communication or side chain discovery is an urgent technical problem to be solved.

SUMMARY OF THE INVENTION

The present application provides a resource configuration method and apparatus for enabling a terminal that does not communicate directly with a base station to obtain resources configured by the base station for side chain communication or side chain discovery.

A first aspect provides a resource configuration method, comprising: a second terminal receiving first information sent by an access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, Alternatively, the first resource is used for the first terminal to perform sidechain discovery; in the case that the first preset condition is satisfied, the second terminal sends second information to the first terminal, where the second information is used to indicate the first resource.

Based on the above technical solutions, when the first terminal does not communicate directly with the access network device, the second terminal obtains the first resource from the access network device, and the first resource is used for side chain communication/side chain communication of the first terminal discovery; after that, the second terminal sends the second information to the first terminal, so that the first terminal can obtain the resources configured by the access network device for side chain communication/side chain discovery. In this way, within the coverage of the cell managed by the access network device, the first terminal uses the resources configured by the access network device to perform sidechain communication/sidechain discovery, so as to avoid affecting the normal communication of other terminals.

In a possible design, the first information is used to indicate the first resource, including: the first information is used to indicate the second resource, and the second resource includes the first resource.

In a possible design, the method further includes: the second terminal sends third information to the access network device, where the third information is used to request the first resource;

In a possible design, when the first resource is used for the first terminal to perform side chain discovery, the first preset condition includes one or more of the following: the second terminal performs a direct discovery process; or, the two terminals measure The quality of the wireless channel to the target cell is greater than or equal to the first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or, the second terminal receives the fifth information, and the fifth information is used to instruct the second terminal to send the second information.

In a possible design, when the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following: the second terminal performs a direct discovery process; or, the second terminal The measured wireless channel quality of the target cell is greater than or equal to the first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or, the second terminal receives the first Five pieces of information, the fifth information is used to instruct the second terminal to send the second information.

In a possible design, before the second terminal receives the first information sent by the access network device, the method further includes: the second terminal and the first terminal perform a direct discovery process.

In a possible design, when the first resource is used for the first terminal to perform side chain communication, the first preset condition includes one or more of the following: a direct connection between the second terminal and the first terminal to be established; communication; or, the wireless channel quality of the target cell measured by the two terminals is greater than or equal to the first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or, the second terminal receives the access network device or The fifth information sent by the first terminal, where the fifth information is used to instruct the second terminal to send the second information, or the fifth information is used to instruct the second terminal to acquire the first resource.

In a possible design, sending the second information to the first terminal by the second terminal includes: the second terminal sends the second information to the first terminal on a third resource, and the third resource is preconfigured by the first terminal for receiving A subset of resources for the second information.

In a possible design, the method further includes: when the second preset condition is satisfied, the second terminal stops sending the second information. In this way, it is beneficial to reduce signaling overhead and save power consumption of the second terminal.

In a possible design, when the first resource is used for the first terminal to perform side chain communication, the second preset condition includes one or more of the following: the second terminal receives the access network device or the first terminal. The sixth information sent, the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or, the second terminal determines The direct communication connection between one terminals has been disconnected; or, the second terminal receives an instruction from the first higher layer, and the first upper layer instruction is used to instruct the second terminal to release the direct communication connection; or, the second terminal receives an instruction from the second higher layer , the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or, the second terminal receives the third high-level instruction, and the third high-level instruction is used to instruct the second terminal to stop performing the direct discovery service.

In a possible design, when the first resource is used for the first terminal to perform side chain discovery, the second preset condition includes one or more of the following: the second terminal receives the access network device or the first terminal. The sixth information sent, the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or, the second terminal determines The direct communication connection between one terminals has been disconnected; or, the second terminal receives an instruction from the first higher layer, and the first upper layer instruction is used to instruct the second terminal to release the direct communication connection; or, the second terminal receives an instruction from the second higher layer , the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or, the second terminal receives the third high-level instruction, and the third high-level instruction is used to instruct the second terminal to stop performing the direct discovery service; or, the second terminal The discovery message sent by the first terminal is received.

In a possible design, the method further includes: the second terminal sends fourth information to the first terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of the target cell, and the target cell is the first terminal. The camping cell of the second terminal or the serving cell of the second terminal. In this way, the first terminal can determine whether it is within the coverage of the target cell according to the fourth information sent by the second terminal. Furthermore, the first terminal can select appropriate resources for sidechain communication/sidechain discovery, so as to avoid affecting normal communication of other terminals.

In a possible design, when the first resource is used for the first terminal to perform sidechain communication, the method further includes: the first terminal sends and/or receives sidechain communication on the first resource.

In a possible design, when the first resource is used for the first terminal to perform sidechain discovery, the method further includes: the first terminal sends and/or receives sidechain discovery on the first resource.

In a second aspect, a resource configuration method is provided, the method includes: a first terminal receives second information sent by a second terminal, the second information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication , or, the first resource is used for the first terminal to perform side chain discovery; the first terminal determines the first resource according to the second information.

Based on the above technical solutions, in the case where the first terminal does not communicate directly with the access network device, the first terminal can obtain the second information sent by the second terminal for the side chain communication/side chain communication configured by the access network device. Chain found resources. In this way, within the coverage of the cell managed by the access network device, the first terminal uses the resources configured by the access network device to perform sidechain communication/sidechain discovery, so as to avoid affecting normal communication of other terminals.

In a possible design, the first terminal receiving the second information sent by the second terminal includes: the first terminal receiving the second information sent by the second terminal on a third resource, and the third resource is used for pre-configuration by the first terminal. A subset of resources for receiving the second information.

In a possible design, the method further includes: the first terminal sends fifth information to the second terminal, where the fifth information is used to instruct the second terminal to send the second information.

In a possible design, the method further includes: the first terminal sends sixth information to the second terminal, where the sixth information is used to instruct the second terminal to stop sending the second information.

In a possible design, the method further includes: the first terminal receives fourth information sent by the second terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of a target cell, and the target cell is The camping cell of the second terminal or the serving cell of the second terminal; the first terminal determines whether the first terminal is within the coverage of the target cell according to the fourth information. Therefore, the first terminal can select appropriate resources for side chain communication/side chain discovery, so as to avoid affecting the normal communication of other terminals.

A third aspect provides a resource configuration method, the method includes: an access network device generates first information, the first information includes a first resource, and the first resource is used for a first terminal to perform sidechain communication, or the first resource It is used for the first terminal to perform side chain discovery; the access network device sends the first information to the second terminal.

Based on the above technical solutions, when the first terminal does not communicate directly with the access network device, the access network device sends the first information to the second terminal to indirectly configure the first terminal for side chain communication/side chain communication. The purpose of the resource found by the chain.

In a possible design, the method further includes: the access network device receives third information sent by the second terminal, where the third information is used to request the first resource.

In a fourth aspect, a communication device is provided, including a processing unit and a communication unit. A communication unit, configured to receive first information sent by the access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication. Sidechain discovery. The processing unit is further configured to generate second information. The communication unit is further configured to send second information to the first terminal when the first preset condition is satisfied, where the second information is used to indicate the first resource.

In a possible design, the communication unit is further configured to send third information to the access network device, where the third information is used to request the first resource;

In a possible design, the processing unit is further configured to perform a direct discovery process with the first terminal.

In a possible design, the communication unit is further configured to send the second information to the first terminal on a third resource, where the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.

In a possible design, the communication unit is further configured to stop sending the second information when the second preset condition is satisfied.

In a possible design, the communication unit is further configured to send fourth information to the first terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of the target cell, and the target cell is the second terminal the camping cell or the serving cell of the second terminal.

In a possible design, when the first resource is used for the first terminal to perform sidechain communication, the communication unit is further configured to send and/or receive sidechain communication on the first resource.

In a possible design, when the first resource is used for the first terminal to perform sidechain discovery, the communication unit is further configured to send and/or receive sidechain discovery on the first resource.

In a fifth aspect, a communication device is provided, including a processing unit and a communication unit. a communication unit, configured to receive second information sent by the second terminal, where the second information is used to indicate the first resource, the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication chain found. The processing unit is configured to determine the first resource according to the second information.

In a possible design, the communication unit is further configured to receive the second information sent by the second terminal on the third resource, where the third resource is a subset of the resources preconfigured by the first terminal for receiving the second information.

In a possible design, the communication unit is further configured to send fifth information to the second terminal, where the fifth information is used to instruct the second terminal to send the second information.

In a possible design, the communication unit is further configured to send sixth information to the second terminal, where the sixth information is used to instruct the second terminal to stop sending the second information.

In a possible design, the communication unit is further configured to receive fourth information sent by the second terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of the target cell, and the target cell is the second terminal. The camping cell of the terminal or the serving cell of the second terminal. The processing unit is further configured to determine whether the first terminal is within the coverage of the target cell according to the fourth information.

In a possible design, when the first resource is used for the first terminal to perform side chain communication, the communication unit is also used for the first terminal to send and/or receive side chain communication on the first resource.

In a possible design, when the first resource is used for the first terminal to perform sidechain discovery, the communication unit is also used for the first terminal to send and/or receive sidechain discovery on the first resource.

In a sixth aspect, a communication device is provided, including a processing unit and a communication unit. A processing unit, configured to generate first information, where the first information includes a first resource, and the first resource is used for the first terminal to perform sidechain communication, or the first resource is used for the first terminal to perform sidechain discovery. The communication unit is used for sending the first information to the second terminal.

In a possible design, the communication unit is further configured to receive third information sent by the second terminal, where the third information is used to request the first resource.

In a seventh aspect, a communication device is provided, the communication device includes a processor and a transceiver, and the processor and the transceiver are configured to implement any one of the methods provided in any one of the first to third aspects above. Wherein, the processor is configured to perform processing actions in the corresponding method, and the transceiver is configured to perform the actions of receiving/transmitting in the corresponding method.

In an eighth aspect, a chip is provided, including: a processing circuit and a transceiver pin, the processing circuit and the transceiver pin being used to implement the method provided in any one of the first to third aspects. Wherein, the processing circuit is used for executing the processing actions in the corresponding method, and the transceiver pins are used for executing the actions of receiving/transmitting in the corresponding method.

In a ninth aspect, a computer-readable storage medium is provided, and the computer-readable storage medium stores computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute any one of the first to third aspects. any method.

A tenth aspect provides a computer program product that, when the computer instructions are executed on a computer, causes the computer to execute any one of the methods provided in any one of the first to third aspects.

In an eleventh aspect, a communication system is provided, where the communication system includes an access network device, a first terminal and a second terminal. The first terminal is configured to execute any one of the methods provided in the second aspect. The second terminal is configured to execute any one of the methods provided in the first aspect. The access network device is configured to execute any one of the methods provided in the third aspect.

It should be noted that, for the technical effect brought by any one of the designs in the fourth aspect to the eleventh aspect, reference may be made to the technical effect brought by the corresponding designs in the first aspect to the third aspect, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

2 is a flow chart of a direct discovery provided by an embodiment of the present application;

3 is a flowchart of another direct discovery provided by the embodiment of the present application;

FIG. 4 is a flowchart of a direct communication provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a communication system provided by an embodiment of the present application;

6 is a flowchart of another resource configuration method provided by an embodiment of the present application;

FIG. 7 is a flowchart of another resource configuration method provided by an embodiment of the present application;

FIG. 8 is a flowchart of a communication method provided by an embodiment of the present application;

FIG. 9 is a flowchart of a communication method provided by an embodiment of the present application;

10 is a flowchart of another communication method provided by an embodiment of the present application;

11 is a flowchart of another resource configuration method provided by an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of another communication apparatus provided by an embodiment of the present application.

detailed description

In the description of this application, unless otherwise stated, "/" means "or", for example, A/B can mean A or B. In this article, "and/or" is only an association relationship to describe the associated objects, which means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. Further, "at least one" means one or more, and "plurality" means two or more. The words "first" and "second" do not limit the quantity and execution order, and the words "first", "second" and the like do not limit certain differences.

It should be noted that, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

1. Direct discovery of proximity services

Direct discovery technology is a technology that enables ProSe UEs (ProSe UEs) to discover other ProSe UEs without going through any network node. The direct discovery technology is implemented through the sidelink discovery access layer function.

Direct discovery technology exists model A (model A) and model B (model B).

Model A defines the following two roles for the terminal:

Announcing the UE, which is used to publish some information, such as discovery messages.

Monitoring (monitoring) UE is used to monitor information of interest.

Model B defines the following two roles for the terminal:

A discoverer (discoverer) UE, used to send a request message, where the request message is used to request information that the UE is interested in discovering.

The discovery (discoveree) UE is used to receive the request message and reply with information related to the request message of the discoverer UE.

The direct discovery technology supports the UE-to-Network Relay Discovery function.

UE-to-Network Relay Discovery defines two different terminals, namely: terminal to network relay terminal (UE-to-Network Relay UE) and remote terminal (Remote UE). Among them, terminal to network relay terminal: a terminal used to provide a network connection function for a remote terminal. It should be noted that the terminal-to-network relay terminal may be referred to as a relay terminal for short, and the relay terminal is used in the following descriptions. Remote terminal: a terminal that is not directly connected to the access network equipment, but is connected to the access network equipment through a relay terminal. As shown in FIG. 1 , it is a network architecture diagram of a remote terminal connecting to a network through a relay terminal. Among them, PC5 reference point/interface: the reference point/interface between the remote terminal and the relay terminal. Uu reference point/interface: The reference point/interface between the relay terminal and the radio access network (eg, NG-RAN, E-UTRAN).

As shown in Figure 2, based on model A, the direct discovery process includes the following steps:

S101, announcing UE sends a discovery notification message.

It should be understood that the announcing UE is not limited to the above-mentioned relay terminal or remote terminal, and may also be other terminals.

Optionally, when the announcing UE is a relay terminal or a remote terminal, the discovery announcement message may also be referred to as a UE-to-Network Relay Discovery announcement message (UE-to-Network Relay Discovery announcement message).

S102. The Monitoring UE monitors and/or receives a discovery notification message.

It should be understood that the Monitoring UE is not limited to the above-mentioned relay terminal or remote terminal, and may also be other terminals.

As shown in Figure 3, based on model B, the direct discovery process includes the following steps:

S201. The discoverer UE sends a discovery request message.

It should be understood that the discoverer UE is not limited to the above-mentioned relay terminal or remote terminal, and may also be other terminals.

Optionally, when the discoverer UE is a relay terminal or a remote terminal, the discovery request message may also be referred to as a UE-to-Network Relay Discovery solicitation message (UE-to-Network Relay Discovery solicitation message).

Optionally, the discovery request message carries a relay service code (relay service code).

When the discoveree UE matches the relay service code carried in the discovery request message, the discoveree UE performs the following step S202.

S202, the discoveree UE sends a discovery response message to the discoverer UE.

It should be understood that the discoveree UE is not limited to the above-mentioned relay terminal or remote terminal, and may also be other terminals.

Optionally, when the discoveree UE is a relay terminal or a remote terminal, the discovery response message may also be referred to as a UE-to-Network Relay Discovery response message (UE-to-Network Relay Discovery response message).

2. Proximity service direct communication

The direct communication technology is a technology that enables direct communication between two or more adjacent terminals without going through any network node. The direct communication technology is implemented through the sidelink communication (sidelink communication) access layer function. Direct communication includes using Evolved-UMTS Terrestrial Radio Access (E-UTRA: Evolved-UMTS Terrestrial Radio Access, E-UTRA) technology or New Radio (New Radio, NR) technology.

Direct communication realizes communication by establishing a direct link (Direct link) between two or more adjacent terminals through the PC5 interface. It should be understood that the direct link establishment procedure is a PC5 signaling protocol procedure between two terminals performing direct communication.

As shown in Figure 4, the direct link establishment process includes the following steps:

S301. An initial (initiating) UE sends a direct communication request message (Direct communication request) to a target (target) UE.

It should be understood that the initiating UE and the target UE are not limited to the above-mentioned relay terminal and remote terminal, and may also be other terminals.

Optionally, when the initiating UE is a relay terminal, the target UE is a remote terminal; or, when the target UE is a remote terminal, the initiating UE is a relay terminal.

When the target UE allows direct communication with the initiating UE, the target terminal may perform the following step S302. Alternatively, when the target UE does not allow direct communication with the initiating UE, the target terminal may perform the following step S303.

S302, the target UE sends a direct communication accept message (Direct communication accept) to the initiating UE.

S303, the target UE sends a direct communication reject message (Direct communication reject) to the initiating UE.

3. Resources required for direct discovery and direct communication

If the terminal detects that at least one cell on the frequency for sidelink communication or sidelink discovery meets the cell selection criteria, the terminal considers itself to be within coverage on this frequency. Otherwise, the terminal considers itself to be out of coverage on this frequency.

When the terminal is within the coverage (In-coverage, IC), the resources used by the terminal for direct communication transmission are the resources in the resource pool broadcasted by the cell for direct communication transmission, or the resources configured by the base station for the terminal for direct communication The resource in the resource pool sent. When the terminal is out of coverage (out-of-coverage, OOC), the resources used by the terminal for direct communication sending are resources in a preconfigured resource pool for direct communication sending.

When the terminal is within the coverage, the resources used by the terminal for direct discovery and transmission are the resources in the resource pool broadcasted by the cell for direct discovery and transmission, or the resources in the resource pool for direct discovery and transmission configured by the base station for the terminal . When the terminal is out of coverage, the resources used by the terminal to perform direct discovery transmission are resources in the preconfigured resource pool for direct discovery transmission.

The above is a brief introduction to the terms involved in the embodiments of the present application, which will not be repeated below.

The present application provides a resource allocation method (also referred to as a method for providing auxiliary information), which is applicable to various communication systems, for example, a new radio interface (new radio, NR) communication system, future evolution system or various communication fusion systems, etc. The technical solutions provided in this application can be applied to various application scenarios, such as machine to machine (M2M), macro-micro communication, enhanced mobile broadband (eMBB), ultra-reliable and ultra-low latency Communication (ultra-reliable & low latency communication, uRLLC) and massive IoT communication (massive machine type communication, mMTC) and other scenarios.

The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

As shown in FIG. 5 , a communication system provided by an embodiment of the present application includes one or more first terminals (only one is shown in FIG. 5 ), one or more second terminals (only one is shown in FIG. 5 ) one is shown) and one or more access network devices (only one is shown in Figure 5).

In this embodiment of the present application, the first terminal does not directly communicate with the access network device. Optionally, the first terminal does not communicate directly with the access network device, which may mean that the first terminal and the access network device cannot establish an end-to-end connection on the physical layer, the MAC layer and/or the RLC layer. Specifically, the first terminal cannot directly receive the control signaling or user plane data sent by the access network device.

Optionally, the first terminal does not communicate directly with the access network device, which may be caused by the following reasons: the first terminal is not within the coverage of the access network device, or the first terminal is at the edge of the coverage of the access network device, Or the first terminal is in an area with poor access network signal quality, or the first terminal cannot be directly served by the access network equipment, or the first terminal does not set a Uu port, or the first terminal is turned off to communicate directly with the access network equipment function, or the first terminal is in an energy saving mode, or the power of the first terminal is low, or the antenna power of the first terminal is low, and so on.

In this embodiment of the present application, the second terminal may communicate directly with the access network device. That is, when the second terminal is located within the coverage of the cell corresponding to the access network device, the second terminal may initiate an access procedure to the access network device to access the communication network. The second terminal may communicate directly with the access network device, which may mean that the second terminal and the access network device may establish an end-to-end connection on the physical layer, the MAC layer and/or the RLC layer.

The above-mentioned terminal may be a user equipment with a wireless transceiver function or a chip system provided in the user equipment. Exemplarily, the above-mentioned device may also be referred to as a station (station, STA), UE, access device, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote device, mobile device, user equipment, wireless communication device , user agent or user device. The above-mentioned equipment includes but is not limited to: mobile phone (mobile phone), tablet computer (Pad), computer with wireless transceiver function, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, roadside devices ( Road Site Unit (RSU), wireless devices in industrial control, wireless devices in self driving, wireless devices in transportation safety, wireless devices in smart cities equipment, sensor equipment, such as monitoring equipment, etc.

Exemplarily, the above-mentioned first terminal and the second terminal communicate directly through a sidelink. In addition, in addition to the sidelink, the direct communication between the terminals may also adopt other forms or wireless connections of other names, which are not limited in this application.

Wherein, the above-mentioned access network equipment is mainly used for realizing wireless physical layer functions, resource scheduling and wireless resource management, wireless access control and mobility management functions. The above-mentioned access network device may refer to an access network device having a wireless transceiver function, or may refer to a chip system provided in the access network device, or other forms. The access network equipment includes, but is not limited to: an access point (AP) in a Wi-Fi system, such as a home wireless router, a wireless relay node, a wireless backhaul node, and a transmission and reception point (TRP) Or transmission point (TP), eNB, radio network controller (RNC), node B (node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS) ), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (baseband unit, BBU), and can also be a 5G system, such as gNB in NR, or a transmission point (TRP or TP), One or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU) etc.

In some deployments, a gNB may include a centralized unit (CU) and a distributed unit (DU). The gNB may also include a radio unit (RU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, CU implements functions of radio resource control (RRC), packet data convergence protocol (PDCP) layer and service discovery application profile (SDAP) layer, DU implements radio link The functions of the road control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layers. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, under this architecture, higher-layer signaling, such as RRC layer signaling or PHCP layer signaling, can also It is considered to be sent by DU, or, sent by DU+RU. It can be understood that the access network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into an access network device in an access network (radio access network, RAN), and the CU can also be divided into an access network device in a core network (core network, CN), which is not limited here.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

As shown in FIG. 6, a resource configuration method provided by an embodiment of the present application includes the following steps:

S401. The second terminal receives the first information sent by the access network device.

Optionally, the first information may be resource pool configuration information. Alternatively, the first information is time-domain resource allocation information and/or frequency-domain resource allocation information.

Optionally, optionally, the first information may be carried in an RRC message, or a system information block (system information block, SIB), or a media access control (media access control, MAC) control element (control element, CE), Or downlink control information (downlink control information, DCI), etc., which are not limited in this embodiment of the present application.

In this embodiment of the present application, the first information is used to indicate the first resource.

In a possible design, the first resource is used for the first terminal to perform sidechain communication, or the first resource is used for the first terminal to perform sidechain discovery.

Optionally, the first resource is used for the first terminal to perform side chain communication, which may be understood as: the first terminal sends or receives side chain communication on the first resource. It should be understood that sending or receiving sidechain communications on the first resource may be sending or receiving sidechain communications on one or more of the first resources.

Sending side chain communication includes sending side chain communication data or signaling, and receiving side chain communication includes receiving side chain communication data or signaling. The sidechain communication data is transmitted on the physical sidelink shared channel (PSSCH), and the sidechain signaling is transmitted on the PSSCH or the physical sidelink control channel (PSCCH). That is, transmitting sidechain communications includes transmitting PSSCH and/or PSCCH. Receiving sidechain communications includes receiving PSSCH and/or PSCCH.

Optionally, the first resource is used for the first terminal to perform side chain discovery, which may be understood as: the first terminal sends or receives side chain discovery on the first resource. Sending sidechain discovery includes sending sidechain discovery messages, and receiving sidechain communications includes receiving sidechain discovery messages. Sidechain discovery messages can be transmitted on the physical sidelink discovery channel (PSDCH). That is, sending the sidechain discovery includes sending the PSDCH. Receiving sidechain discovery includes receiving the PSDCH.

In another possible design, the first resource is used for the first terminal to perform direct communication, or the first resource is used for the first terminal to perform direct discovery.

Optionally, the first resource is used for the first terminal to perform direct communication, which may be understood as: the first terminal may send and/or receive data and/or signaling for direct communication on the first resource. Data or signaling for direct communication is transmitted on PSSCH.

Optionally, the first resource is used for the first terminal to perform direct discovery, which can be understood as: the first terminal may send a direct discovery message on the first resource, or receive a direct discovery message on the first resource. Direct discovery messages can be transmitted on PSDCH or PSSCH.

It should be understood that the methods applicable to direct discovery hereinafter are also applicable to side chain discovery, and the methods applicable to direct communication are also applicable to side chain communication.

The first resource may include one or more resources. Alternatively, the first resource may include one or more resource pools, and one resource pool may include one or more resources. Optionally, the resource pool may also have other names, such as resource collection, which is not limited.

The resources may be time-domain resources, frequency-domain resources, or time-frequency resources. It should be understood that, in the frequency domain, one resource may include one or more physical resource blocks (PRBs), or, one resource may include one or more subchannels. A subchannel consists of one or more PRBs. One PRB includes one or more subcarriers. In the time domain, a resource includes one or more time units, and the time units may be timeslots, subframes, mini-slots, symbols, and frames.

In the frequency domain, the resource pool includes one or more PRBs, or the resource pool includes one or more subchannels. In the time domain, a resource pool includes one or more time units.

Optionally, the first information is used to indicate the first resource, and the following two situations exist:

Case 1: Any resource indicated by the first information is the first resource.

Case 2: The first information is used to indicate the second resource, and the first resource is a part of the second resource.

Optionally, the second resource is a resource configured by the access network device for direct communication or direct discovery. Alternatively, the second resource is a resource configured by the access network device for sidechain communication or sidechain discovery.

Based on case 2, for a first terminal, the second terminal may select a part of resources from the second resources as the first resource corresponding to the first terminal.

For example, the second resource indicated by the first information includes resource #1, resource #2, resource #3, and resource #4, and the second terminal may determine that resource #1 and resource #2 are the first resource.

Optionally, the second terminal may allocate different first resources to different first terminals.

For example, taking terminal 1 as the second terminal, and terminal 2 and terminal 3 as the first terminals, assuming that the second resource indicated by the first information includes resource #1, resource #2, resource #3, and resource #4, the terminal 1 may determine that the first resources corresponding to terminal 2 are resource #1 and resource #2, and the first resources corresponding to terminal 3 are resource #3 and resource #4.

Optionally, the second terminal may allocate the same first resource to different first terminals.

For example, taking terminal 1 as the second terminal, and terminal 2 and terminal 3 as the first terminals, assuming that the second resource indicated by the first information includes resource #1, resource #2, resource #3, and resource #4, the terminal 1 may determine that the first resources corresponding to terminal 2 are resource #1 and resource #2, and the first resources corresponding to terminal 3 are resource #1 and resource #2.

In this embodiment of the present application, the first information is used to indicate a resource (for example, a first resource or a second resource), which may be implemented in the following manner 1 or manner 2.

Manner 1. The first information includes configuration parameters of the resource. Exemplarily, for a time domain resource, the configuration parameters of the time domain resource may include a time domain starting position, or a duration, and the like. For the frequency domain resources, the configuration parameters of the frequency domain resources may include the starting position of the frequency domain, or the width of the frequency domain, and the like.

Manner 2: The first information includes an index of the resource.

Based on Mode 2, the second terminal may pre-configure configuration parameters of multiple resources and indexes of multiple resources. Furthermore, the second terminal may determine the configuration parameter of the resource indicated by the first information according to the index of the resource included in the first information.

In a possible implementation manner of step S401, the second terminal receives the first information broadcast by the access network device.

In another possible implementation manner of step S401, the second terminal sends third information to the access network device, where the third information is used to request the first resource. After that, the second terminal receives the first information sent by the access network device. Wherein, the third information may be RRC signaling, such as SidelinkUEInformation RRC message. Alternatively, the third information may also be a MAC CE, such as a buffer status report (buffer status report, BSR) MAC CE.

Optionally, the second terminal may actively send the third information to the access network device. For example, when the information broadcast by the access network device does not include the second resource or the first resource, the second terminal sends the third information to the access network device.

Alternatively, the second terminal may send the third information to the access network device under the trigger of other devices. For example, the second terminal receives the fifth information sent by the access network device or the first terminal, and the fifth information triggers the second terminal to send the third information; after that, the second terminal sends the third information to the access network device.

S402. The second terminal sends the second information to the first terminal, so that the first terminal receives the second information sent by the second terminal.

Wherein, the second information is used to indicate the first resource.

Optionally, the second information is used to indicate the first resource, which may be implemented in the following manner 1 or manner 2.

Manner 1. The second information includes configuration parameters of the first resource.

Manner 2: The second information includes an index of the first resource.

Optionally, the second information may be resource pool configuration information, or the second information may be time domain resource allocation information and/or frequency resource allocation information, which is not limited in this embodiment of the present application.

In a possible design, the second information includes part or all of the information elements (information elemen, IE) in the first information or part or all of the fields (also called fields) in the first information.

In another possible design, the second terminal determines the first resource according to the first information, and then generates second information for indicating the first resource.

Optionally, the second information may be carried in a PC5RRC message, or a PC5-S message, or a PC5 system information block (system information block, SIB), or a Sidelink SIB, or a PC5 master message block (master Information block, MIB), or Sidelink MIB, or discovery message (for example, Relay Discovery Additional Information message), or sidelink MAC CE, or SCI, which is not limited in this embodiment of the present application.

Optionally, the second information may be carried in the discovery message. Discovery messages are messages in the direct discovery process. Exemplarily, the discovery message may be the terminal-to-network relay discovery notification message in FIG. 1 , the terminal-to-network relay discovery request message in FIG. 2 , or the terminal-to-network relay discovery response message in FIG. 2 . Here, a unified description is provided, and details are not repeated below.

Optionally, when the first resource is used for direct communication or side chain communication of the first terminal, the second information may be carried in the direct communication request message or the direct communication accept message.

As a possible implementation manner, the second terminal sends the second information to the first terminal on the third resource. Correspondingly, the first terminal receives the second information sent by the second terminal on the third resource.

It should be understood that the second terminal may pre-configure one or more third resources. Alternatively, the second terminal may determine the third resource according to the indication information delivered by the access network device, where the resource indicated by the indication information includes the third resource. Optionally, the indication information and the first information may be included in the same message.

Optionally, when the first terminal receives the second information, the first terminal may send response information to the second terminal, where the response information is used to respond to the second information. Correspondingly, the second terminal may receive the response information sent by the first terminal.

It should be understood that the resource for transmitting the response information may be the resource that the first terminal receives the second information, or the resource that is preconfigured for transmitting the response information.

Optionally, in order to reduce the probability that the first terminal misses receiving the second information, the second terminal should send the second information multiple times.

Optionally, the second terminal sends the second information to the first terminal, which can be implemented in any one of the following implementation manners:

Implementation Mode 1: The second terminal periodically sends the second information on the third resource.

It should be understood that the time interval for sending the second information twice may be determined by the second terminal, or may be specified by a communication protocol.

Implementation Mode 2: The second terminal sends the second information in a polling manner on multiple third resources.

For example, the second terminal acquires the third resource #1, the third resource #2, and the third resource #3. After that, the second terminal sends the second information using the third resource #1 at time 1, sends the second information using the third resource #2 at time 2, and sends the second information using the third resource #3 at time 3.

Implementation Mode 3: The second terminal sends the second information on the third resource. After sending the second information, the second terminal sets a timer. When the timer expires, the second terminal resends the second information.

It should be understood that when the second terminal receives the response information from the first terminal, the second terminal may cancel the timer.

S403. The first terminal determines the first resource according to the second information.

As a possible implementation manner, the first terminal determines the configuration parameter of the first resource according to the second information. Furthermore, the first terminal determines the first resource according to the configuration parameter of the first resource.

Based on the technical solution shown in FIG. 6 , when the first terminal does not have the function of communicating with the access network device, the second terminal obtains the first resource from the access network device, and the first resource is used for the direct communication of the first terminal. communication/direct discovery/side chain communication/side chain discovery; after that, the second terminal sends second information to the first terminal, so that the first terminal can obtain the configuration of the access network equipment for direct communication/direct discovery/side chain Resources for chain communication/sidechain discovery. In this way, within the coverage of the cell managed by the access network device, the first terminal uses the resources configured by the access network device to perform direct communication/direct discovery/sidechain communication/sidechain discovery to avoid affecting the normal operation of other terminals. communication.

Optionally, in the embodiment shown in FIG. 6 , the second terminal should perform step S401 or S402 under the condition that the first preset condition is satisfied.

Optionally, when the first resource is used for the first terminal to perform direct discovery or sidechain discovery, the first preset condition includes one or a combination of the following:

Condition 1-1: The second terminal executes the direct discovery process.

Optionally, condition 1-1 may be specifically implemented as: when the second terminal sends a discovery message; or, the second terminal has sent a discovery message; or, the second terminal is about to send a discovery message; or, the second terminal monitors the discovery message message; when the second terminal sends the sidechain discovery; or, the second terminal has sent the sidechain discovery; or, the second terminal is about to send the sidechain discovery; or, the second terminal monitors the sidechain discovery.

Exemplarily, the discovery message sent by the second terminal may be: a discovery message sent by the second terminal as a Discoverer UE, or a request message.

Exemplarily, the discovery message monitored by the second terminal may be: a discovery message or an announcement message sent by the Announcing UE; or, a discovery message or a request message sent by the Discoverer UE.

Condition 1-2: The wireless channel quality of the target cell measured by the second terminal is greater than or equal to the first threshold.

The target cell is a camping cell of the second terminal or a serving cell of the second terminal. The camping cell of the second terminal refers to a cell selected by the second terminal, but the second terminal has not established a connection with the cell. The serving cell of the second terminal refers to a cell that establishes a connection with the second terminal and provides services for the second terminal.

It should be understood that the strength of the received signal may reflect the wireless channel quality. Exemplarily, the wireless channel quality may be Reference Signal Receiving Power (RSRP) or Reference Signal Receiving Quality (RSRQ).

In this embodiment of the present application, the first threshold may be set by the second terminal or specified by a communication protocol.

Exemplarily, when the radio channel quality of the target cell is the received power of the reference signal, the first threshold may be set to 50dbm.

Condition 1-3: The second terminal receives the fifth information sent by the access network device or the first terminal. The fifth information is used to instruct the second terminal to acquire the first resource; or, the fifth information is used to instruct the second terminal to send the second information; or, the fifth information is used to instruct to request the resource.

It should be understood that the above-mentioned conditions 1-1 to 1-3 are only illustrative descriptions of the first preset condition, and do not constitute a limitation on the first preset condition.

Optionally, in the case where the first resource is used for the first terminal to perform direct communication or side chain communication, if the second terminal does not perform a direct discovery process with the first terminal before performing step S401, the first preset condition includes: A combination of one or more of the following:

Condition 1-1: The second terminal executes the direct discovery process.

Condition 1-3: The second terminal receives the fifth information sent by the access network device or the first terminal.

Optionally, in the case where the first resource is used for the first terminal to perform direct communication or side chain communication, if the second terminal has performed the direct discovery process with the first terminal before performing step S401, the first preset condition includes: A combination of one or more of the following:

Condition 1-4, the second terminal is to establish a direct communication connection with the first terminal.

Optionally, conditions 1-4 may be specifically implemented as: when the second terminal sends the direct communication request message to the first terminal; or, after the second terminal sends the direct communication request message to the first terminal.

Optionally, the first preset condition includes a combination of the following items, which may mean that the first preset condition can be obtained by combining the foregoing multiple sub-conditions.

In a possible design, in the case where the first preset condition is composed of multiple sub-conditions, and in the case where the multiple sub-conditions combined into the first preset condition are satisfied, the second terminal obtains the first preset condition according to the first information. first resource. If any one of the sub-conditions is not satisfied, the second terminal does not acquire the first resource.

For example, the first preset condition may be a combination of condition 1-1 and condition 1-2. In this way, when the conditions 1-1 and 1-2 are satisfied, the second terminal acquires the first resource according to the first information. In the case that the condition 1-1 and/or the condition 1-2 are not satisfied, the second terminal does not acquire the first resource.

In another possible design, when the first preset condition is composed of multiple sub-conditions, satisfying any one of the first preset conditions is equivalent to satisfying the first preset condition.

Optionally, based on the technical solution shown in FIG. 6 , as shown in FIG. 7 , the method may further include step S404 after step S403 .

S404. The second terminal stops sending the second information.

As a possible implementation manner, when the second preset condition is satisfied, the second terminal stops sending the second information.

Optionally, when the first resource is used for the first terminal to perform direct communication or sidechain communication, the second preset condition includes one or more of the following:

Condition 2-1. The second terminal receives the sixth information sent by the access network device or the first terminal. The sixth information is used to instruct the second terminal to stop sending the third information. Alternatively, the sixth information is used to instruct the second terminal to stop acquiring the first resource.

Optionally, the sixth information may be response information of the foregoing second information.

Optionally, after the direct communication connection is established between the first terminal and the second terminal, the second terminal receives the sixth information sent by the access network device or the first terminal.

Condition 2-2, the second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected or released.

Condition 2-3: The second terminal receives the first upper layer indication. The first upper layer indication is used to instruct the second terminal to release the direct communication connection.

Condition 2-4, the second terminal receives the second upper layer indication. Wherein, the second upper layer indication is used to instruct the second terminal to stop performing the direct communication service.

Condition 2-5, the second terminal receives the indication of the third higher layer. Wherein, the third upper layer indication is used to instruct the second terminal to stop performing the direct discovery service.

Optionally, when the first resource is used for the first terminal to perform direct discovery or sidechain discovery, the second preset condition includes one or more of the following:

Condition 2-2. The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected.

Condition 2-6: The second terminal receives the discovery message sent by the first terminal.

Optionally, the resource used by the first terminal to send the discovery message may be the first resource.

Condition 2-7: The second terminal receives the direct communication request message sent by the first terminal.

Condition 2-8, the second terminal and the first terminal have established a direct communication connection.

Condition 2-8: The second terminal receives the side chain communication sent by the first terminal.

Exemplarily, the above-mentioned high-level indication (eg, the first high-level indication) may be an indication of a PC5signaling layer, or an indication of a PC5RRC layer, or an indication of an application layer, which is not limited in this embodiment of the present application.

Based on the technical solution shown in FIG. 7 , the second terminal may stop sending the second information in an appropriate scenario, thereby reducing signaling overhead.

Optionally, when the first resource is used for direct discovery of the first terminal, the first terminal sends the direct discovery signaling or data on the first resource, and the second terminal receives the direct discovery signaling on the first resource. command or data; or, the second terminal sends directly discovered signaling or data on the first resource, and the first terminal receives the directly discovered signaling or data on the first resource.

Optionally, when the first resource is used for sidechain discovery of the first terminal, the first terminal sends the sidechain discovery on the first resource, and the second terminal receives the sidechain discovery on the first resource. Alternatively, the second terminal sends the sidechain discovery on the first resource, and the first terminal receives the sidechain discovery on the first resource.

Exemplarily, the embodiment shown in FIG. 8 or FIG. 9 may be executed between the first terminal and the second terminal.

As shown in FIG. 8 , a communication method provided by an embodiment of the present application includes the following steps:

S501. The first terminal sends a discovery notification message on the first resource.

The discovery notification message is used to inform other terminals of the existence of the first terminal. The discovery announcement message enables the first terminal to announce the availability of the relay connection service provided by the first terminal to other terminals. The discovery announcement message can also enable other terminals to measure the signal strength of the discovery message for other terminals to perform relay selection or relay reselection. The signal strength of the discovery message may specifically be the received power of the reference signal associated with the channel used for transmitting the discovery message.

S502. The second terminal monitors the discovery notification message on the first resource.

Based on the technical solution shown in FIG. 8 , when the first terminal and the second terminal are within the coverage of the target cell, the first terminal and the second terminal use the first resource to perform a direct discovery process, which can avoid affecting the normal communication of other terminals. .

As shown in FIG. 9, a communication method provided by an embodiment of the present application includes the following steps:

S601. The first terminal sends a discovery request message on the first resource, so that the second terminal receives the discovery request message on the first resource.

S602. The second terminal sends a discovery response message on the first resource, so that the first terminal receives the discovery response message on the first resource.

Based on the embodiment shown in FIG. 9 , when the first terminal and the second terminal are within the coverage of the target cell, the first terminal and the second terminal use the first resource to perform a direct discovery process, which can avoid affecting the normal communication of other terminals .

Optionally, when the first resource is used for the direct communication of the first terminal, the first terminal sends the data or signaling of the direct communication on the first resource, and the second terminal receives the data of the direct communication on the first resource. or signaling; or, the second terminal sends data or signaling of direct communication on the first resource, and the first terminal receives data or signaling of direct communication on the first resource.

Optionally, when the first resource is used for side chain communication of the first terminal, the first terminal sends side chain communication on the first resource, and the second terminal receives side chain communication on the first resource; The two terminals send sidechain communications on the first resource, and the first terminal receives sidechain communications on the first resource.

Exemplarily, the embodiment shown in FIG. 10 may be executed between the first terminal and the second terminal.

As shown in FIG. 10 , a communication method provided by an embodiment of the present application includes the following steps:

S701. The first terminal sends a direct communication request message to the second terminal on the first resource, so that the second terminal receives the direct communication request message sent by the first terminal on the first resource.

The direct communication request message is used to request the establishment of a direct communication connection.

When the second terminal allows direct communication with the first terminal, the second terminal executes the following step S702; otherwise, the second terminal executes the following step S703.

S702. The second terminal sends a direct communication accept message to the first terminal on the first resource, so that the first terminal receives the direct communication accept message sent by the second terminal on the first resource.

S703. The second terminal sends a direct communication rejection message to the first terminal on the first resource, so that the first terminal receives the direct communication rejection message sent by the second terminal on the first resource.

Based on the embodiment shown in FIG. 10 , when the first terminal and the second terminal are within the coverage of the target cell, the first terminal and the second terminal use the first resource to perform a direct communication process, which can avoid affecting the normal communication of other terminals .

Optionally, in the embodiments shown in FIG. 8 to FIG. 10 , the operations performed by the first terminal may be performed by the second terminal instead, and the operations performed by the second terminal may be performed by the first terminal instead.

Optionally, because the first terminal does not have the function of communicating with the access network device, the first terminal cannot accurately determine whether it is within the coverage of the cell. Therefore, the first terminal within the coverage of the cell may perform direct discovery or direct communication using preconfigured resources, thereby causing interference to other terminals. Alternatively, the first terminal outside the coverage of the cell performs direct discovery or direct communication using resources configured by the base station, thereby causing interference to other terminals.

In order to solve this technical problem, as shown in FIG. 11 , the present application provides a resource configuration method. The embodiment shown in FIG. 11 may be combined with any of the embodiments shown in FIG. 6 to FIG. 10 above. As shown in Figure 11, the method includes the following steps:

S801. The second terminal generates fourth information.

In a possible implementation manner, the fourth information is used to indicate whether the target terminal is within the coverage of the target cell. That is, the fourth information may be used to indicate that the target terminal is within the coverage of the target cell. Alternatively, the fourth information may be used to indicate that the target terminal is out of coverage of the target cell. The above-mentioned target terminal may be the second terminal or the first terminal.

The target cell is a camping cell or a serving cell of the first terminal, or the target cell is a camping cell or a serving cell of the second terminal. For the definitions of the camping cell and the serving cell, reference may be made to the foregoing description, which will not be repeated here.

Optionally, the fourth information may adopt any one of the following designs:

Design 1. When the fourth information includes the first information element, the fourth information is used to indicate that the target terminal is within the coverage of the target cell. Or, when the fourth information does not include the first information element, the fourth information is used to indicate that the target terminal is outside the coverage of the target cell.

Design 2. When the fourth information includes the first information element, the fourth information is used to indicate that the target terminal is outside the coverage of the target cell. Or, when the fourth information does not include the first information element, the fourth information is used to indicate that the target terminal is within the coverage of the target cell.

Design 3: When the fourth information includes a first information element whose value is the first enumeration value, the fourth information is used to indicate that the target terminal is within the coverage of the target cell. Or, when the fourth information includes the first information element whose value is the second enumeration value, the fourth information is used to indicate that the target terminal is outside the coverage of the target cell.

Exemplarily, the first enumeration value may be true. The second enumeration value can be false.

It should be understood that when the second terminal determines that the target terminal is within the coverage of the target cell, the fourth information generated by the second terminal is used to indicate that the target terminal is within the coverage of the target cell. When the second terminal determines that the target terminal is outside the coverage of the target cell, the fourth information generated by the second terminal is used to indicate that the target terminal is outside the coverage of the target cell.

Optionally, the second terminal may determine whether the target terminal is within the coverage of the target cell according to factors such as the wireless signal quality of the target cell.

Taking the target terminal as the first terminal as an example, when the wireless signal quality of the target cell is lower than the preset value, it means that the second terminal is at the coverage edge of the target cell, and the first terminal near the second terminal has a high probability of being in the target cell. The cell is out of coverage, so the second terminal may consider that the first terminal is out of the coverage of the target cell. Or, when the wireless signal quality of the target cell is greater than or equal to the preset value, it means that the second terminal is in the coverage center of the target cell, and the first terminal near the second terminal has a high probability of being within the coverage of the target cell. The second terminal may consider that the first terminal is within the coverage of the target cell.

In another possible implementation manner, the fourth information is used to indicate whether the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold.

Optionally, the fourth information may adopt any one of the following designs:

Design 1. When the fourth information includes the first information element, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold. Alternatively, when the fourth information does not include the first information element, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is smaller than the second threshold.

Design 2. When the fourth information includes the first information element, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is smaller than the second threshold. Or, when the fourth information does not include the first information element, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold.

Design 3: When the fourth information includes the first information element whose value is the first enumeration value, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold. Or, when the fourth information includes the first information element whose value is the second enumeration value, the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is less than the second threshold.

S802. The second terminal sends fourth information to the first terminal, so that the first terminal receives the fourth information sent by the second terminal.

Optionally, the fourth information can be carried in the PC5 RRC message, or the PC5-S message, or the PC5 system information block (system information block, SIB), or the sidelink SIB, or the PC5 master message block (master Information block, MIB), Or sidelink MIB, or synchronization information, or media access control (media access control, MAC) control element (control element, CE), or sidelink control information (sidelink control information, SCI), or discovery message, etc., this application implements The example does not limit this.

Exemplarily, when the fourth information is carried in the sidelink MIB or the synchronization information, the first information element in the fourth information may be the inCoverage information element in the sidelink MIB or the synchronization information.

As a possible implementation manner, the second terminal sends the fourth information to the first terminal on the third resource. Correspondingly, the first terminal receives the fourth information sent by the second terminal on the fourth resource.

As another possible implementation manner, after the second terminal sends the second information to the first terminal, the second terminal sends the fourth information to the first terminal on the first resource. Correspondingly, the first terminal receives the fourth information sent by the second terminal on the first resource.

S803. The first terminal determines, according to the fourth information, whether the first terminal is within the coverage of the target cell.

As a possible implementation manner, when the fourth information is used to indicate that the target terminal is out of the coverage of the target cell, the first terminal determines that it is out of the coverage of the target cell. Alternatively, when the fourth information is used to indicate that the target terminal is within the coverage of the target cell, the first terminal determines that it is within the coverage of the target cell.

As another possible implementation manner, if the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold, the first terminal determines that it is within the coverage of the target cell. If the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is less than the second threshold, the first terminal determines that it is outside the coverage of the target cell.

Further, the first terminal may determine the resource used by the first terminal according to the fourth information.

That is, when the fourth information is used to indicate that the target terminal is outside the coverage of the target cell, or when the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is less than the second threshold, the first The terminal uses preconfigured resources for sidechain communication or sidechain discovery.

When the fourth information is used to indicate that the target terminal is within the coverage of the target cell, or when the fourth information is used to indicate that the wireless channel quality of the target cell measured by the second terminal is greater than or equal to the second threshold, the first terminal uses The first resource in the foregoing embodiment performs sidechain communication or sidechain discovery.

Based on the embodiment shown in FIG. 11 , the first terminal may determine whether it is within the coverage of the target cell according to the fourth information sent by the second terminal. Furthermore, the first terminal may select appropriate resources for direct communication/direct discovery/side chain communication/side chain discovery, so as to avoid affecting normal communication of other terminals.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between different network elements. It can be understood that, in order to implement the above-mentioned functions, the first terminal, the second terminal, and the access network device include corresponding hardware structures and/or software modules for executing each function. Combining with the units and algorithm steps of each example described in the embodiments disclosed in this application, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present application.

In this embodiment of the present application, the communication device may be divided into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.

As shown in FIG. 12 , a communication apparatus provided by an embodiment of the present application includes a processing unit 1202 and a communication unit 1203 .

Exemplarily, when the communication device is used to implement the functions of the second terminal, the processing unit 1202 may be configured to support the second terminal to perform generating information (eg, generating second information), parsing information (eg, parsing the first information), and/or or other procedures for the protocols described herein. The communication unit 1203 can be used to support the second terminal to perform steps S401-S402 in FIG. 6 , step S404 in FIG. 7 , step S502 in FIG. 8 , steps S601-S602 in FIG. 9 , steps S701-S703 in FIG. 10 , step S802 in FIG. 11 , and/or other processes for the scheme described herein.

Exemplarily, when the communication device is used to implement the functions of the first terminal, the processing unit 1202 may be configured to support the first terminal to perform step S403 in FIG. 6 and step S803 in FIG. other processes of the program. The communication unit 1203 may be configured to support the first terminal to perform step S402 in FIG. 6 , step S501 in FIG. 8 , steps S601 and S602 in FIG. 9 , steps S701-S703 in FIG. 10 , step S802 in FIG. 11 , and /or other procedures for the protocols described herein.

Exemplarily, when the communication apparatus is used to implement the above-mentioned access network device, the processing unit 1202 may be configured to support the access network device to generate the first information, and/or other processes for the solutions described herein. The communication unit 1203 may be used to support the access network device to send the first information, receive the third information, and/or other procedures for the schemes described herein.

Optionally, the communication device may further include a storage unit 1201 for storing program codes and data of the device, and the data may include but not limited to original data or intermediate data and the like.

The processing unit 1202 may be a processor or a controller, for example, a CPU, a general-purpose processor, a programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, and the like.

The communication unit 1203 may be a communication interface, a transceiver, a transceiver circuit, or the like. Among them, the communication interface is a general term. In a specific implementation, the communication interface may include multiple interfaces, for example, may include an interface between a base station and a terminal and/or other interfaces.

The storage unit 1201 may be a memory.

When the processing unit 1202 is a processor, the communication unit 1203 is a communication interface, and the storage unit 1201 is a memory, the communication apparatus shown in FIG. 12 can be implemented with the structure shown in FIG. 13 .

Referring to FIG. 13 , the apparatus 1300 includes: a processor 1302 , a communication interface 1303 , and a memory 1301 . Optionally, the apparatus 1300 may further include a bus 1304 . Wherein, the communication interface 1303, the processor 1302 and the memory 1301 can be connected to each other through a bus 1304; the bus 1304 can be a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, for short) EISA) bus, etc. The bus 1304 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 13, but it does not mean that there is only one bus or one type of bus.

Optionally, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on the computer, the computer is made to execute any of the steps provided in FIG. 6 to FIG. 11 . a way.

Optionally, the embodiment of the present application further provides a computer program product, when the computer instructions are executed on the computer, the computer can execute any one of the methods provided in FIG. 6 to FIG. 11 .

Optionally, an embodiment of the present application further provides a chip, including: a processing circuit and a transceiver pin, where the processing circuit and the transceiver pin are used to implement the methods provided in FIGS. 6 to 11 . Wherein, the processing circuit is used for executing the processing actions in the corresponding method, and the transceiver pins are used for executing the actions of receiving/transmitting in the corresponding method.

Those of ordinary skill in the art can understand that: in the above-mentioned embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc., that includes one or more available media integrated. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, Digital Video Disc (DVD)), or semiconductor media (eg, Solid State Disk (SSD)) Wait.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each functional unit may exist independently, 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 may be implemented in the form of hardware plus software functional units.

From the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general-purpose hardware, and of course hardware can also be used, but in many cases the former is a better implementation manner . Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art. The computer software products are stored in a readable storage medium, such as a floppy disk of a computer. , a hard disk or an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

In conjunction with the above, the application also provides the following embodiments:

Embodiment 1. A resource configuration method, wherein the method includes:

The second terminal receives first information sent by the access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform sidechain communication, or the first resource is used for The first terminal performs side chain discovery;

When the first preset condition is satisfied, the second terminal sends second information to the first terminal, where the second information is used to indicate the first resource.

Embodiment 2. The method according to Embodiment 1, wherein the first information is used to indicate the first resource, including:

The first information is used to indicate a second resource, and the second resource includes the first resource.

Embodiment 3. The method according to Embodiment 1 or 2, wherein the method further comprises:

sending, by the second terminal, third information to the access network device, where the third information is used to request the first resource;

Embodiment 4. The method according to any one of Embodiments 1 to 3, wherein, when the first resource is used for the first terminal to perform sidechain discovery, the first preset condition includes one of the following or multiple items:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the two terminals is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information.

Embodiment 5. The method according to any one of Embodiments 1 to 3, wherein, in the case that the first resource is used for the first terminal to perform side chain communication, the first preset condition includes one of the following or multiple items:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the second terminal is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

Embodiment 6. The method according to any one of Embodiments 1 to 3, wherein before the second terminal receives the first information sent by the access network device, the method further includes:

The second terminal and the first terminal perform a direct discovery process.

Embodiment 7. The method according to Embodiment 6, wherein, in the case that the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following:

The second terminal is to establish direct communication with the first terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information, or the first terminal The fifth information is used to instruct the second terminal to acquire the first resource.

Embodiment 8. The method according to any one of Embodiments 1 to 7, wherein the sending, by the second terminal, the second information to the first terminal includes:

The second terminal sends the second information to the first terminal on a third resource, and the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.

Embodiment 9. The method according to any one of Embodiments 1 to 8, wherein the method further comprises:

When the second preset condition is satisfied, the second terminal stops sending the second information.

Embodiment 10. The method according to Embodiment 9, wherein, when the first resource is used for the first terminal to perform side chain communication, the second preset condition includes one or more of the following :

The second terminal receives sixth information sent by the access network device or the first terminal, where the sixth information is used to instruct the second terminal to stop sending the third information to, or the first terminal. Six information is used to instruct the second terminal to stop acquiring the first resource; or,

The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected; or,

The second terminal receives a first high-level indication, where the first high-level indication is used to instruct the second terminal to release the direct communication connection; or,

The second terminal receives a second high-level instruction, where the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or,

The second terminal receives a third-layer instruction, where the third-layer instruction is used to instruct the second terminal to stop performing the direct discovery service.

Embodiment 11. The method according to Embodiment 9, wherein, when the first resource is used for the first terminal to perform sidechain discovery, the second preset condition includes one or more of the following:

The second terminal receives a third high-level instruction, where the third high-level instruction is used to instruct the second terminal to stop performing the direct discovery service; or,

The second terminal receives the discovery message sent by the first terminal.

Embodiment 12. The method according to any one of Embodiments 1 to 11, wherein the method further comprises:

The second terminal sends fourth information to the first terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of a target cell, and the target cell is the target cell. the camping cell of the second terminal or the serving cell of the second terminal.

Embodiment 13. The method according to any one of Embodiments 1 to 12, wherein when the first resource is used for the first terminal to perform sidechain communication, the method further includes:

The first terminal sends and/or receives sidechain communications on the first resource.

Embodiment 14. The method according to any one of Embodiments 1 to 12, wherein when the first resource is used for the first terminal to perform sidechain discovery, the method further includes:

The first terminal sends and/or receives sidechain discovery on the first resource.

Embodiment 15, a resource configuration method, wherein the method includes:

The first terminal receives second information sent by the second terminal, where the second information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for side chain communication. performing side chain discovery on the first terminal;

The first terminal determines the first resource according to the second information.

Embodiment 16. The method according to Embodiment 16, wherein the receiving, by the first terminal, the second information sent by the second terminal includes:

The first terminal receives the second information sent by the second terminal on a third resource, where the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.

Embodiment 17. The method according to Embodiment 15 or 16, wherein the method further comprises:

The first terminal sends fifth information to the second terminal, where the fifth information is used to instruct the second terminal to send the second information.

Embodiment 18. The method of any one of Embodiments 15 to 17, wherein the method further comprises:

The first terminal sends sixth information to the second terminal, where the sixth information is used to instruct the second terminal to stop sending the second information.

Embodiment 19. The method of any one of Embodiments 15 to 18, wherein the method further comprises:

The first terminal receives fourth information sent by the second terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of a target cell, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal;

The first terminal determines whether the first terminal is within the coverage of the target cell according to the fourth information.

Embodiment 20. The method according to any one of Embodiments 15 to 19, wherein when the first resource is used for the first terminal to perform sidechain communication, the method further includes:

Embodiment 21. The method according to any one of Embodiments 15 to 19, wherein when the first resource is used for the first terminal to perform sidechain discovery, the method further includes:

Embodiment 22, a resource configuration method, wherein the method comprises:

The access network device generates first information, where the first information includes a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication chain discovery;

The access network device sends the first information to the second terminal.

Embodiment 23. The method according to Embodiment 22, wherein the method further comprises:

The access network device receives third information sent by the second terminal, where the third information is used to request the first resource.

Embodiment 24. The method according to Embodiment 22 or 23, wherein the first information is used to indicate the first resource, including:

Embodiment 25, a communication device, comprising:

a communication unit, configured to receive first information sent by an access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource for the first terminal to perform side chain discovery;

a processing unit for generating second information;

The communication unit is further configured to send second information to the first terminal when the first preset condition is satisfied, where the second information is used to indicate the first resource.

Embodiment 26. The communication apparatus according to Embodiment 25, wherein the first information is used to indicate the first resource, comprising:

Embodiment 27. The communication apparatus according to Embodiment 25 or 26, wherein the communication unit further sends third information to the access network device, where the third information is used to request the first resource;

Embodiment 28. The communication apparatus according to any one of Embodiments 25 to 27, wherein, when the first resource is used for the first terminal to perform sidechain discovery, the first preset condition includes one of the following: Item or multiple items:

The second terminal performs a direct discovery process; or,

Embodiment 29. The communication apparatus according to any one of Embodiments 25 to 27, wherein, when the first resource is used for the first terminal to perform side chain communication, the first preset condition includes one of the following: Item or multiple items:

The second terminal performs a direct discovery process; or,

Embodiment 30: The communication apparatus according to any one of Embodiments 25 to 28, wherein the processing unit is further configured to perform a direct discovery process with the first terminal.

Embodiment 31. The communication apparatus according to Embodiment 30, wherein, when the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following:

Embodiment 32: The communication apparatus according to any one of Embodiments 25 to 31, wherein the communication unit is specifically configured to send the second information to the first terminal on a third resource, and the first The three resources are a subset of resources preconfigured by the first terminal for receiving the second information.

Embodiment 33: The communication apparatus according to any one of Embodiments 25 to 32, wherein the communication unit is further configured to stop sending the second information when a second preset condition is satisfied.

Embodiment 34. The communication apparatus according to Embodiment 33, wherein, when the first resource is used for the first terminal to perform side chain communication, the second preset condition includes one or more of the following: item:

The second terminal receives a third upper layer instruction, where the third higher layer instruction is used to instruct the second terminal to stop performing the direct discovery service.

Embodiment 35. The communication apparatus according to Embodiment 33, wherein, when the first resource is used for the first terminal to perform side chain discovery, the second preset condition includes one or more of the following:

The second terminal receives the discovery message sent by the first terminal.

Embodiment 36: The communication device according to any one of Embodiments 25 to 35, wherein the communication unit is further configured to send fourth information to the first terminal, where the fourth information is used to indicate Whether the first terminal or the second terminal is within the coverage of a target cell, where the target cell is a camping cell of the second terminal or a serving cell of the second terminal.

Embodiment 37. The communication apparatus according to any one of Embodiments 25 to 36, wherein when the first resource is used for the first terminal to perform side chain communication, the communication unit is further configured to perform side chain communication on the first terminal. Send and/or receive sidechain communications on a resource.

Embodiment 38. The communication apparatus according to any one of Embodiments 25 to 36, wherein when the first resource is used for the first terminal to perform sidechain discovery, the communication unit is further configured to perform the side chain discovery in the first terminal. Send and/or receive sidechain discovery on a resource.

Embodiment 39, a communication device, wherein the communication device comprises:

a communication unit, configured to receive second information sent by a second terminal, where the second information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first the resource is used for the first terminal to perform side chain discovery;

and a processing unit, configured to determine the first resource according to the second information.

Embodiment 40. The communication apparatus according to Embodiment 39, wherein the communication unit is specifically configured to receive, on a third resource, the second information sent by the second terminal, and the third resource is the first terminal A subset of resources are preconfigured for receiving the second information.

Embodiment 41. The communication apparatus according to Embodiment 39 or 40, wherein the communication unit is further configured to send fifth information to the second terminal, where the fifth information is used to indicate the second terminal The second information is sent.

Embodiment 42. The communication apparatus according to any one of Embodiments 39 to 41, wherein the communication unit is further configured to send sixth information to the second terminal, where the sixth information is used to indicate the The second terminal stops sending the second information.

Embodiment 43. The communication apparatus according to any one of Embodiments 39 to 42, wherein the communication unit is further configured to receive fourth information sent by the second terminal, where the fourth information is used to indicate the whether the first terminal or the second terminal is within the coverage of a target cell, where the target cell is a camping cell of the second terminal or a serving cell of the second terminal. The processing unit is further configured to determine, according to the fourth information, whether the first terminal is within the coverage of the target cell.

Embodiment 44. The communication apparatus according to any one of Embodiments 39 to 43, wherein when the first resource is used for the first terminal to perform side chain communication, the communication unit is further configured to perform side chain communication in the first terminal. Send and/or receive sidechain communications on a resource.

Embodiment 45. The communication apparatus according to any one of Embodiments 39 to 43, wherein when the first resource is used for the first terminal to perform side chain discovery, the communication unit is further configured to perform a side chain discovery in the first terminal. Send and/or receive sidechain discovery on a resource.

Embodiment 46, a communication device, wherein the communication device comprises:

a processing unit, configured to generate first information, where the first information includes a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication sidechain discovery;

A communication unit, configured to send the first information to the second terminal.

Embodiment 47. The communication apparatus according to Embodiment 46, wherein the communication unit is further configured to receive third information sent by the second terminal, where the third information is used to request the first resource.

Embodiment 48. The communication apparatus according to Embodiment 46 or 47, wherein the first information is used to indicate the first resource, comprising:

Embodiment 49, a communication device, wherein the communication device has a processor and a communication interface, the processor is configured to perform the processing operations in the methods involved in any one of Embodiments 1 to 24, and the communication interface uses The communication operation in the method involved in any one of Embodiments 1 to 24 is performed.

Embodiment 50. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, which, when executed on a computer, cause the computer to execute any one of Embodiments 1 to 24. method described.

Embodiment 51. A computer program product, wherein the computer program product comprises computer instructions that, when executed on a computer, cause the computer to perform the method of any one of Embodiments 1 to 24.

Embodiment 52. A chip, wherein the chip includes a processing unit and a transceiver pin; the processing unit is configured to perform the processing operation in the method according to any one of Embodiments 1 to 24, and the transceiver The pin is used to perform the communication operation in the method involved in any one of Embodiments 1 to 24.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and changes or substitutions within the technical scope disclosed in the present application should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A resource allocation method, characterized in that the method comprises:

The second terminal receives first information sent by the access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform sidechain communication, or the first resource is used for The first terminal performs side chain discovery;

When the first preset condition is satisfied, the second terminal sends second information to the first terminal, where the second information is used to indicate the first resource.
The method according to claim 1, wherein the first information is used to indicate the first resource, comprising:

The first information is used to indicate a second resource, and the second resource includes the first resource.
The method according to claim 1 or 2, wherein the method further comprises:

The second terminal sends third information to the access network device, where the third information is used to request the first resource.
The method according to any one of claims 1 to 3, wherein when the first resource is used for the first terminal to perform sidechain discovery, the first preset condition includes one or more of the following item:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the two terminals is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information.
The method according to any one of claims 1 to 3, wherein when the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following item:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the second terminal is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information.
The method according to any one of claims 1 to 3, wherein before the second terminal receives the first information sent by the access network device, the method further comprises:

The second terminal and the first terminal perform a direct discovery process.
The method according to claim 6, wherein, when the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following:

The second terminal is to establish direct communication with the first terminal; or,

The wireless channel quality of the target cell measured by the two terminals is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information, or the first terminal The fifth information is used to instruct the second terminal to acquire the first resource.
The method according to any one of claims 1 to 7, wherein the second information sent by the second terminal to the first terminal comprises:

The second terminal sends the second information to the first terminal on a third resource, and the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.
The method according to any one of claims 1 to 8, wherein the method further comprises:

When the second preset condition is satisfied, the second terminal stops sending the second information.
The method according to claim 9, wherein, when the first resource is used for the first terminal to perform sidechain communication, the second preset condition includes one or more of the following:

The second terminal receives sixth information sent by the access network device or the first terminal, where the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or,

The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected; or,

The second terminal receives a first high-level indication, where the first high-level indication is used to instruct the second terminal to release the direct communication connection; or,

The second terminal receives a second high-level instruction, where the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or,

The second terminal receives a third upper layer instruction, where the third higher layer instruction is used to instruct the second terminal to stop performing the direct discovery service.
The method according to claim 9, wherein, when the first resource is used for the first terminal to perform sidechain discovery, the second preset condition includes one or more of the following:

The second terminal receives sixth information sent by the access network device or the first terminal, where the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or,

The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected; or,

The second terminal receives a first high-level indication, where the first high-level indication is used to instruct the second terminal to release the direct communication connection; or,

The second terminal receives a second high-level instruction, where the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or,

The second terminal receives a third high-level instruction, where the third high-level instruction is used to instruct the second terminal to stop performing the direct discovery service; or,

The second terminal receives the discovery message sent by the first terminal.
The method according to any one of claims 1 to 11, wherein the method further comprises:

The second terminal sends fourth information to the first terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of a target cell, and the target cell is the target cell. the camping cell of the second terminal or the serving cell of the second terminal.
The method according to any one of claims 1 to 12, wherein when the first resource is used for the first terminal to perform sidechain communication, the method further comprises:

The first terminal sends and/or receives sidechain communications on the first resource.
The method according to any one of claims 1 to 12, wherein when the first resource is used for the first terminal to perform sidechain discovery, the method further comprises:

The first terminal sends and/or receives sidechain discovery on the first resource.
A resource allocation method, characterized in that the method comprises:

The first terminal receives second information sent by the second terminal, where the second information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for side chain communication. performing side chain discovery on the first terminal;

The first terminal determines the first resource according to the second information.
The method according to claim 15, wherein the receiving, by the first terminal, the second information sent by the second terminal, comprises:

The first terminal receives the second information sent by the second terminal on a third resource, where the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.
The method according to claim 15 or 16, wherein the method further comprises:

The first terminal sends fifth information to the second terminal, where the fifth information is used to instruct the second terminal to send the second information.
The method according to any one of claims 15 to 17, wherein the method further comprises:

The first terminal sends sixth information to the second terminal, where the sixth information is used to instruct the second terminal to stop sending the second information.
The method according to any one of claims 15 to 18, wherein the method further comprises:

The first terminal receives fourth information sent by the second terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of a target cell, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal;

The first terminal determines whether the first terminal is within the coverage of the target cell according to the fourth information.
The method according to any one of claims 15 to 19, wherein when the first resource is used for the first terminal to perform sidechain communication, the method further comprises:

The first terminal sends and/or receives sidechain communications on the first resource.
The method according to any one of claims 15 to 19, wherein when the first resource is used for the first terminal to perform sidechain discovery, the method further comprises:

The first terminal sends and/or receives sidechain discovery on the first resource.
A resource allocation method, characterized in that the method comprises:

The access network device generates first information, where the first information includes a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication chain discovery;

The access network device sends the first information to the second terminal.
The method of claim 22, wherein the method further comprises:

The access network device receives third information sent by the second terminal, where the third information is used to request the first resource.
The method according to claim 22 or 23, wherein the first information is used to indicate the first resource, comprising:

The first information is used to indicate a second resource, and the second resource includes the first resource.
A communication device, characterized in that the communication device is applied to a second terminal, and the communication device comprises:

a communication unit, configured to receive first information sent by an access network device, where the first information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource for the first terminal to perform side chain discovery;

a processing unit for generating second information;

The communication unit is further configured to send second information to the first terminal when the first preset condition is satisfied, where the second information is used to indicate the first resource.
The communication device according to claim 25, wherein the first information is used to indicate the first resource, comprising:

The first information is used to indicate a second resource, and the second resource includes the first resource.
The communication apparatus according to claim 25 or 26, wherein the communication unit further sends third information to the access network device, where the third information is used to request the first resource.
The communication device according to any one of claims 25 to 27, wherein, when the first resource is used for the first terminal to perform sidechain discovery, the first preset condition includes one of the following or Multiple:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the two terminals is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information.
The communication device according to any one of claims 25 to 27, wherein, when the first resource is used for the first terminal to perform side chain communication, the first preset condition includes one of the following or Multiple:

The second terminal performs a direct discovery process; or,

The wireless channel quality of the target cell measured by the second terminal is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information.
The communication device according to any one of claims 25 to 28, wherein the processing unit is further configured to perform a direct discovery process with the first terminal.
The communication device according to claim 30, wherein when the first resource is used for the first terminal to perform sidechain communication, the first preset condition includes one or more of the following:

The second terminal is to establish direct communication with the first terminal; or,

The wireless channel quality of the target cell measured by the two terminals is greater than or equal to a first threshold, and the target cell is the camping cell of the second terminal or the serving cell of the second terminal; or,

The second terminal receives fifth information sent by the access network device or the first terminal, where the fifth information is used to instruct the second terminal to send the second information, or the first terminal The fifth information is used to instruct the second terminal to acquire the first resource.
The communication device according to any one of claims 25 to 31, wherein the communication unit is specifically configured to send the second information to the first terminal on a third resource, and the third resource A subset of resources for receiving the second information is preconfigured for the first terminal.
The communication device according to any one of claims 25 to 32, wherein the communication unit is further configured to stop sending the second information when a second preset condition is satisfied.
The communication device according to claim 33, wherein when the first resource is used for the first terminal to perform sidechain communication, the second preset condition includes one or more of the following:

The second terminal receives sixth information sent by the access network device or the first terminal, where the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or,

The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected; or,

The second terminal receives a first high-level indication, where the first high-level indication is used to instruct the second terminal to release the direct communication connection; or,

The second terminal receives a second high-level instruction, where the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or,

The second terminal receives a third upper layer instruction, where the third higher layer instruction is used to instruct the second terminal to stop performing the direct discovery service.
The communication device according to claim 33, wherein when the first resource is used for the first terminal to perform sidechain discovery, the second preset condition includes one or more of the following:

The second terminal receives sixth information sent by the access network device or the first terminal, where the sixth information is used to instruct the second terminal to stop sending the third information, or the sixth information is used to instruct the second terminal to stop acquiring the first resource; or,

The second terminal determines that the direct communication connection between the second terminal and the first terminal has been disconnected; or,

The second terminal receives a first high-level indication, where the first high-level indication is used to instruct the second terminal to release the direct communication connection; or,

The second terminal receives a second high-level instruction, where the second high-level instruction is used to instruct the second terminal to stop performing the direct communication service; or,

The second terminal receives a third high-level instruction, where the third high-level instruction is used to instruct the second terminal to stop performing the direct discovery service; or,

The second terminal receives the discovery message sent by the first terminal.
The communication device according to any one of claims 25 to 35, wherein the communication unit is further configured to send fourth information to the first terminal, where the fourth information is used to indicate the first terminal Whether the terminal or the second terminal is within the coverage of a target cell, where the target cell is a camping cell of the second terminal or a serving cell of the second terminal.
The communication apparatus according to any one of claims 25 to 36, wherein when the first resource is used for the first terminal to perform side chain communication, the communication unit is further configured to perform side chain communication on the first resource Send and/or receive sidechain communications on the
The communication device according to any one of claims 25 to 36, wherein when the first resource is used for the first terminal to perform side chain discovery, the communication unit is further configured to perform a side chain discovery on the first resource Send and/or receive sidechain discovery.
A communication device, characterized in that the communication device is applied to a first terminal, and the communication device comprises:

a communication unit, configured to receive second information sent by a second terminal, where the second information is used to indicate a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first the resource is used for the first terminal to perform side chain discovery;

and a processing unit, configured to determine the first resource according to the second information.
The communication device of claim 39, wherein:

The communication unit is specifically configured to receive, on a third resource, the second information sent by the second terminal, where the third resource is a subset of resources preconfigured by the first terminal for receiving the second information.
The communication device according to claim 39 or 40, characterized in that,

The communication unit is further configured to send fifth information to the second terminal, where the fifth information is used to instruct the second terminal to send the second information.
The communication device according to any one of claims 39 to 41, wherein:

The communication unit is further configured to send sixth information to the second terminal, where the sixth information is used to instruct the second terminal to stop sending the second information.
The communication device according to any one of claims 39 to 42, characterized in that:

The communication unit is further configured to receive fourth information sent by the second terminal, where the fourth information is used to indicate whether the first terminal or the second terminal is within the coverage of the target cell, the the target cell is the camping cell of the second terminal or the serving cell of the second terminal;

The processing unit is further configured to determine, according to the fourth information, whether the first terminal is within the coverage of the target cell.
The communication device according to any one of claims 39 to 43, wherein when the first resource is used for the first terminal to perform side chain communication, the communication unit is further configured to perform side chain communication on the first resource Send and/or receive sidechain communications on the
The communication device according to any one of claims 39 to 43, wherein when the first resource is used for the first terminal to perform side chain discovery, the communication unit is further configured to use the first resource to perform side chain discovery. Send and/or receive sidechain discovery.
A communication device, characterized in that the communication device comprises:

a processing unit, configured to generate first information, where the first information includes a first resource, and the first resource is used for the first terminal to perform side chain communication, or the first resource is used for the first terminal to perform side chain communication sidechain discovery;

A communication unit, configured to send the first information to the second terminal.
The communication device of claim 46, wherein:

The communication unit is further configured to receive third information sent by the second terminal, where the third information is used to request the first resource.
The communication device according to claim 46 or 47, wherein the first information is used to indicate the first resource, comprising:

The first information is used to indicate a second resource, and the second resource includes the first resource.
A communication device, characterized in that the communication device has a processor and a communication interface, the processor is configured to execute the processing operations in the method according to any one of claims 1 to 24, and the communication interface is configured to execute A communication operation in the method of any one of claims 1 to 24.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, which, when the computer instructions are executed on a computer, cause the computer to execute the method described in any one of claims 1 to 24. method.
A computer program product, characterized in that the computer program product includes computer instructions, which when executed on a computer, cause the computer to perform the method of any one of claims 1 to 24.
A chip, characterized in that the chip includes a processing unit and a transceiver pin; the processing unit is used to perform the processing operation in the method according to any one of claims 1 to 24, and the transceiver pin is used for for performing the communication operation in the method of any one of claims 1 to 24.