WO2024138336A1

WO2024138336A1 - Relay communication method and apparatus, device, storage medium, and program product

Info

Publication number: WO2024138336A1
Application number: PCT/CN2022/142076
Authority: WO
Inventors: 卢前溪; 冷冰雪; 卢飞
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2024-07-04

Abstract

A relay communication method and apparatus, a device, a storage medium, and a program product, which relate to the technical field of communications. The method comprises: a terminal device sending a first message to a first network device, the first message comprising service information supported by at least one relay device (340). The terminal device sends to the first network device service information supported by the at least one relay device, thus helping the first network device to determine a first relay device for use in transmitting the first service and allowing the first network device to select a relay device suitable for first service communication, thereby achieving relay network link management and improving service transmission reliability.

Description

Relay communication method, device, equipment, storage medium and program product

Technical Field

The embodiments of the present application relate to the field of communication technology, and in particular to a relay communication method, apparatus, device, storage medium and program product.

Background technique

In relay communications, all services can be sent and received via relay devices, so for terminal devices, it is only necessary to consider the signal quality factor to decide whether to serve the terminal device by a direct link, an indirect link, or a combination of a direct link and an indirect link.

In the related art, it is required that emergency services cannot communicate with non-emergency services using the same logical channel of a relay device (here, different logical channels of the same relay device or different relay devices can be used). Therefore, relay communication for different services needs further research and discussion.

Summary of the invention

The embodiments of the present application provide a relay communication method, apparatus, device, storage medium and program product. The technical solution is as follows:

According to one aspect of an embodiment of the present application, a relay communication method is provided, the method being executed by a terminal device, the method comprising:

A first message is sent to a first network device, where the first message includes service information supported by at least one relay device.

According to one aspect of an embodiment of the present application, a relay communication method is provided, the method being executed by a first network device, the method comprising:

A first message sent by a terminal device is received, where the first message includes service information supported by at least one relay device.

Receiving configuration information sent by a network device, where the configuration information is used to configure relay transmission related to at least two services;

According to the configuration information, at least one of the at least two services is relayed and transmitted.

In the event of a radio link failure in a first relay connection used for a first service, a reporting message is sent to a network device via a second connection used for a second service, wherein the reporting message is used to indicate that a radio link failure has occurred in the first relay connection; wherein the first service and the second service are different.

According to one aspect of an embodiment of the present application, a relay communication method is provided, the method being executed by a network device, the method comprising:

A reporting message is received from a terminal device via a second connection for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection for a first service; wherein the first service and the second service are different.

According to one aspect of an embodiment of the present application, a relay communication device is provided, the device comprising:

A sending module is used to send a first message to a first network device, wherein the first message includes service information supported by at least one relay device. According to one aspect of an embodiment of the present application, a relay communication device is provided, the device comprising:

The receiving module is used to receive a first message sent by a terminal device, wherein the first message includes service information supported by at least one relay device.

A receiving module, used to receive configuration information sent by a network device, wherein the configuration information is used to configure relay transmission related to at least two services;

A processing module is used to relay and transmit at least one of the at least two services according to the configuration information.

The sending module is used to send configuration information to the terminal device, where the configuration information is used to configure relay transmission related to at least two services.

A sending module is used to send a reporting message to a network device through a second connection used for a second service when a wireless link failure occurs in a first relay connection used for a first service, wherein the reporting message is used to indicate that a wireless link failure occurs in the first relay connection; wherein the first service and the second service are different.

A receiving module is used to receive a reporting message sent by a terminal device through a second connection used for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection used for a first service; wherein the first service and the second service are different.

According to one aspect of an embodiment of the present application, a communication device is provided, the communication device comprising a processor and a memory, the memory storing a computer program, and the processor executing the computer program to implement any of the above-mentioned relay communication methods.

According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used to be executed by a processor to implement any of the above-mentioned relay communication methods.

According to one aspect of an embodiment of the present application, a chip is provided, wherein the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement any of the above-mentioned relay communication methods.

According to one aspect of an embodiment of the present application, a computer program product is provided, which includes a computer program stored in a computer-readable storage medium, and a processor reads and executes the computer program from the computer-readable storage medium to implement any of the above-mentioned relay communication methods.

The technical solution provided by the embodiments of the present application may have the following beneficial effects:

By sending service information supported by at least one relay device to the first network device through the terminal device, the first network device is assisted in determining the first relay device used to transmit the first service, so that the first network device can select a relay device suitable for the first service communication, thereby realizing the management of the links of the relay network and improving the reliability of service transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

FIG2 is a schematic diagram of relay communication provided by an embodiment of the present application;

FIG3 is a flow chart of a relay communication method provided by an embodiment of the present application;

FIG4 is a schematic diagram of a method for determining a relay device provided by an embodiment of the present application;

FIG5 is a flow chart of a relay communication method provided by another embodiment of the present application;

FIG6 is a flow chart of a relay communication method provided by another embodiment of the present application;

FIG7 is a flow chart of a relay communication method provided by another embodiment of the present application;

FIG8 is a block diagram of a relay communication device provided by an embodiment of the present application;

FIG9 is a block diagram of a relay communication device provided by another embodiment of the present application;

FIG10 is a block diagram of a relay communication device provided by another embodiment of the present application;

FIG11 is a block diagram of a relay communication device provided by another embodiment of the present application;

FIG12 is a block diagram of a relay communication device provided by another embodiment of the present application;

FIG13 is a block diagram of a relay communication device provided by another embodiment of the present application;

FIG14 is a schematic diagram of the structure of a terminal device provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of the structure of a network device provided in one embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, and NR system. Evolved systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, non-terrestrial communication networks (NTN) systems, universal mobile telecommunication systems (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), fifth-generation communication (5th-Generation, 5G) systems or other communication systems, etc.

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

The communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

The embodiments of the present application can be applied to non-terrestrial communication networks (NTN) systems, and can also be applied to terrestrial communication networks (TN) systems.

Please refer to FIG1 , which shows a schematic diagram of a system architecture provided by an embodiment of the present application. The system architecture 100 may include: a terminal device 10 , an access network device 20 , and a core network device 30 .

The terminal device 10 may refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent or user device, relay terminal device. Optionally, the terminal device may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in 5GS or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited to this. For the convenience of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is usually multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20 .

The access network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal device 10. The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different, for example, in the 5G NR system, they are called gNodeB or gNB. With the evolution of communication technology, the name "access network device" may change. For the convenience of description, in the embodiment of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 10 are collectively referred to as access network devices. Optionally, through the access network device 20, a communication relationship can be established between the terminal device 10 and the core network device 30. Exemplarily, in the LTE system, the access network device 20 may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) or one or more eNodeBs in EUTRAN; in the 5G NR system, the access network device 20 may be RAN (Radio Access Network) or one or more gNBs in RAN.

The functions of the core network device 30 are mainly to provide user connection, user management and service bearing, and to provide an interface to the external network as a bearer network. For example, the core network equipment in the 5G NR system may include AMF (Access and Mobility Management Function) entity, UPF (User Plane Function) entity and SMF (Session Management Function) entity and other devices.

In one example, the access network device 20 and the core network device 30 communicate with each other through some air technology, such as the NG (Next Generation) interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other through some air technology, such as the Uu interface.

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

In the embodiments of the present application, "terminal equipment" and "UE" are usually used interchangeably, and both represent the same meaning. "Network equipment" generally refers to "access network equipment" such as base stations unless otherwise specified. In some special places, "network equipment" may also refer to "core network equipment" such as AMF.

Before introducing the technical solution of this application, some background technical knowledge involved in this application is first introduced and explained. The following related technologies can be combined arbitrarily with the technical solution of the embodiment of this application as optional solutions, and they all belong to the protection scope of the embodiment of this application. The embodiment of this application includes at least part of the following contents.

In the related art, a layer 2 terminal to network relay transmission mode is introduced, and the communication between the terminal device (also referred to as Remote UE, remote terminal or remote UE in the embodiment of the present application) and the network device (such as base station, gNB) is realized through the relay device (also referred to as UE-to-Network Relay UE, relay terminal or relay UE in the embodiment of the present application). The adaptation layer is placed above the control plane and user plane RLC sublayer at the Uu interface between the relay device and the network device. Uu SDAP (Service Data Adaptation Protocol)/PDCP (Packet Data Convergence Protocol) and RRC (Radio Resource Control) terminate between the terminal device and the network device, while RLC (Radio Link Control), MAC (Medium Access Control) and PHY (Physical layer) terminate in each link (i.e., the link between the terminal device and the relay device and the link between the relay device and the network device).

As shown in Figure 2, the relay device does not need to process Uu-SDAP and Uu-PDCP, but the terminal device and the network device need to process Uu-SDAP and Uu-PDCP, so it can be said that Uu SDAP/PDCP and RRC are terminated between the terminal device and the network device; the terminal device, the relay device and the network device all need to process RLC, MAC and PHY, so it can be said that RLC, MAC and PHY are terminated in each link (that is, the link between the terminal device and the relay device and the link between the relay device and the network device).

Exemplarily, as shown in Figure 2, the information that needs to be transmitted by the terminal device is transmitted by the PC5-RLC of the terminal device via the PC5-MAC and PC5-PHY of the terminal device to the PC5-PHY of the relay device, and then by the PC5-PHY of the relay device via the PC5-MAC and PC5-RLC of the relay device to the Uu-RLC of the relay device, and then by the Uu-RLC of the relay device via the Uu-MAC and Uu-PHY of the relay device to the Uu-PHY of the network device.

For L2UE to network relay, uplink:

The Uu adaptation layer of the relay device supports uplink bearer mapping between access PC5 RLC channels for relaying and outgoing Uu RLC channels on the Uu path of the relay device. For uplink relay services, different end-to-end bearers (SRB (Signaling Radio Bearer), DRB (Data Radio Bearer)) of the same terminal device and/or different terminal devices can be N:1 mapped and data multiplexed on one Uu RLC channel.

The Uu Adaptation Layer is used to support terminal device identification for uplink services (multiplexing data from multiple terminal devices). The terminal device Uu radio bearer and the terminal device identification information are included in the uplink Uu Adaptation Layer so that the network equipment can associate the received data packets of the specific PDCP entity associated with the Uu radio bearer of the terminal device.

For L2UE to network relay, downlink:

The Uu Adaptation Layer may be used to support downlink bearer mapping at the network device to map the end-to-end radio bearers (SRB, DRB) of the terminal device to the Uu RLC channel through the relay device Uu path. The Uu Adaptation Layer may be used to support downlink N:1 bearer mapping and data multiplexing between multiple end-to-end radio bearers (DRB, DRB) of the terminal device and/or different terminal devices and one Uu RLC channel on the relay device Uu path.

The Uu adaptation layer needs to support terminal device identification for downlink services. The identity information of the terminal device Uu radio bearer and the identification information of the terminal device need to be placed in the Uu adaptation layer through the network equipment at the downlink so that the relay device can map the data packets received from the terminal device Uu radio bearer to its related PC5 RLC channel.

Please refer to Figure 3, which shows a flow chart of a relay communication method provided by an embodiment of the present application. The method can be applied to the network architecture shown in Figure 1. The method can include the following step 340:

Step 340: The terminal device sends a first message to the first network device, where the first message includes service information supported by at least one relay device.

Correspondingly, the first network device receives the first message sent by the terminal device.

The service information is used to indicate the service or service type.

In some embodiments, the service information supported by the relay device is used to indicate the services or service types supported by the relay device. Exemplarily, the service information supported by the relay device is used to indicate the services supported by the relay device, such as voice, traffic and video, and another example is emergency services and non-emergency services. Exemplarily, the service information supported by the relay device is used to indicate the service types supported by the relay device, and the present application does not limit the method for dividing the service types. For example, the service types include emergency service types and non-emergency service types; for another example, voice or traffic is one service type, and video is another service type.

It should be noted that the "business" mentioned in the embodiments of the present application can also be replaced by "business type", and the "business type" can also be replaced by "business". The new embodiments obtained by the above replacements should also be included in the scope of protection of the present application.

In some embodiments, the service information includes at least one of the following: explicit indication information of the service; RSC (Relay Service Code); upper layer information, which refers to information used by the service layer to distinguish services; layer 2 ID (Identifier). The display indication information of the service refers to identification information used to identify the service or service type. Different services or service types correspond to different explicit indication information. In addition, there is also a corresponding relationship between RSC, upper layer information or layer 2 ID and the service or service type. Therefore, the corresponding service or service type can also be determined based on RSC, upper layer information or layer 2 ID.

In some embodiments, a relay device may support one service type or multiple service types, which is not limited in this application, but for the same service type, communication cannot be performed on different relay devices at the same time. Exemplarily, a relay device supports one service type, for example, relay device 1 only supports service type 1, and relay device 2 only supports service type 2. Exemplarily, a relay device supports multiple service types, for example, relay device 1 supports service type 1, service type 2, and service type 3, and relay device 2 supports service type 4, service type 5, and service type 6.

In some embodiments, the at least one relay device includes both relay devices that support only one service type and relay devices that support multiple service types. Exemplarily, the at least one relay device includes relay device 1 and relay device 2. Relay device 1 supports only service type 1, and relay device 2 supports service type 2, service type 3, and service type 4.

In some embodiments, if a relay device supports multiple service types, the relay device supports different service types through different RSCs or different layer 2 IDs. Exemplarily, relay device 1 supports service type 1, service type 2, and service type 3, then relay device 1 supports service type 1 through RSC1, service type 2 through RSC2, and service type 3 through RSC3. Exemplarily, relay device 2 supports service type 4, service type 5, and service type 6, then relay device 2 supports service type 4 through layer 2 ID1, service type 5 through layer 2 ID2, and service type 6 through layer 2 ID3.

In some embodiments, this application does not limit the at least one relay device mentioned above. Exemplarily, the at least one relay device mentioned above may be all or part of the relay devices within the communication range of the terminal device, or may be a relay device within the communication range of the terminal device and located in the service cell corresponding to the first network device. Exemplarily, as shown in FIG4 , taking the terminal device as UE1 as an example, the at least one relay device mentioned above may be all relay devices (RelayUE1, RelayUE2, RelayUE3 and RelayUE4) within the communication range of UE1, or may be a relay device (RelayUE1, RelayUE3 and RelayUE4) within the communication range of UE1 and located in the service cell corresponding to the first network device. Exemplarily, the at least one relay device mentioned above may also be indicated by the network device, or may be determined according to the measurement and/or reporting configuration information provided by the network device.

In some embodiments, the first message may include a correspondence between the identification information of the relay device and the service information. The identification information of a relay device may correspond to the service information of one service or may correspond to the service information of multiple services, which is not limited in this application.

In some embodiments, the first message also includes a measurement result corresponding to at least one relay device, where the measurement result is used to indicate the link quality between the terminal device and the relay device.

This application does not limit the above measurement results. For example, the above measurement results can be RSRP (Reference Signal Received Power), RSSI (Received Signal Strength Indicator), RSRQ (Reference Signal Received Quality) and SINR (Signal to Interference plus Noise Ratio). For example, the measurement result refers to the RSRP between the terminal device and the relay device.

In some embodiments, the first message may include the correspondence between the identification information of the relay device and the service information and measurement results. Exemplarily, the first message includes the identification information of a relay device and the measurement result corresponding to the relay device, as well as the service information of a service corresponding to the relay device, or the service information of multiple services corresponding to the relay device. Exemplarily, the first message includes the measurement results and service information corresponding to multiple relay devices respectively.

In the above embodiments, only the service information supported by at least one relay device and the measurement result corresponding to at least one relay device are sent in the same message (i.e., the first message) as an example. In some embodiments, the service information supported by at least one relay device and the measurement result corresponding to at least one relay device may also be sent in different messages, which is not limited in this application.

In some embodiments, the first message is any one of the following: MAC CE signaling sent by the terminal device to the first network device; RRC message sent by the terminal device to the first network device; NGAP (Next Generation Application Protocol) message received by the core network device from the terminal device. The MAC CE signaling sent by the terminal device to the first network device can be sent directly by the terminal device to the first network device, or sent by the terminal device to the first network device through the second relay device. For example, the terminal device communicates with the first network device for the second service through the second relay device, and the terminal device can send the above MAC CE signaling to the first network device through the second relay device. The RRC message sent by the terminal device to the first network device can be sent directly by the terminal device to the first network device, or sent by the terminal device to the first network device through the second relay device. For example, the terminal device communicates with the first network device for the second service through the second relay device, and the terminal device can send the above RRC message to the first network device through the second relay device. When the first message is sent using MAC CE signaling, the communication time is short, but the reliability is low; when the first message is sent using RRC message, the communication time is long, but the reliability is high.

In some embodiments, if the first message is MAC CE signaling, the terminal device sends the first message to the first network device; if the first message is an RRC message, the terminal device sends the first message to the first network device; if the first message is a NAS message, the terminal device sends the NAS message to the core network device, and the core network device sends an NGAP message to the first network device based on the NAS message.

In some embodiments, if the first message is an RRC message, the first message may be UE assistance information (UEAssistanceInformation).

In an embodiment of the present application, service information supported by at least one relay device is sent to the first network device through a terminal device, assisting the first network device in determining a first relay device for transmitting a first service, so that the first network device can select a relay device suitable for the first service communication, thereby realizing the management of the links of the relay network and improving the reliability of service transmission.

In some embodiments, the method provided by the embodiment of the present application further includes the following steps: the terminal device sends a second message to the first network device, the second message is used to instruct the terminal device to start the first service communication and/or end the second service communication. Accordingly, the first network device receives the second message sent by the terminal device.

In some embodiments, the terminal device performs a second service communication with the first network device through the second relay device.

In some embodiments, during the process of the terminal device communicating the second service with the first network device through the second relay device, the terminal device sends a second message to the first network device, and the second message is used to instruct the terminal device to start the first service communication and/or end the second service communication.

Optionally, the second message includes at least one of the following: indication information for indicating the start of the first service, indication information for indicating the end of the second service. Optionally, the second message also includes at least one of the following: indication information for indicating the start time of the first service, indication information for indicating the end time of the second service.

In some embodiments, the first service type is different from the second service type. Exemplarily, the first service type is an emergency service, and the second service type is a non-emergency service. Exemplarily, the first service type is a non-emergency service, and the second service type is an emergency service.

In some embodiments, before starting the first service communication, the terminal device sends a second message to the first network device to instruct the terminal device to start the first service. In some embodiments, before ending the second service communication, the terminal device sends a second message to the first network device to instruct the terminal device to end the second service.

In some embodiments, the first message and the second message may be one message or two messages, which is not limited in this application.

The terminal device sends the service to be processed to the network device, assisting the first network device to determine the service for which the first relay device is to transmit, so that the first network device can select a relay device suitable for the first service communication, thereby realizing the management of the links of the relay network and improving the reliability of service transmission.

In some embodiments, the method provided by the embodiments of the present application further includes the following steps: the terminal device measures and obtains measurement results corresponding to at least one relay device according to the measurement configuration information.

In some embodiments, the measurement configuration information is used to indicate the link quality between the terminal device and the relay device. Optionally, the measurement configuration information is used to configure the terminal device to measure the relay device. Optionally, the measurement configuration information can also be used to configure the relay device that the terminal device needs to measure. Optionally, the measurement configuration information can also be used to configure the service or service type for which the terminal device performs measurement. Optionally, the measurement configuration information can also be used to configure the time when the terminal device starts measuring. Optionally, the measurement configuration information can also be used to configure the parameters that the terminal device needs to measure, such as RSRP, SINR.

In some embodiments, the terminal device measures at least one relay device for the service included in the service information according to the service information included in the measurement configuration information to obtain a measurement result. Exemplarily, the measurement configuration information includes service information of service 1, service 2, and service 3, and the terminal device measures at least one relay device for service 1, service 2, and service 3 according to the measurement configuration information. For example, the terminal device measures relay device 1 and relay device 2, and relay device 1 supports service 1, and relay device 2 supports service 2 and service 3.

This application does not limit the method for a terminal device to measure a relay device. Exemplarily, the terminal device measures the relay device through a reference signal to obtain a measurement result RSRP corresponding to the relay device. For example, the terminal device sends a reference signal to the relay device, the relay device measures the received power of the reference signal, and sends the measured received power to the terminal device. For another example, the relay device sends reference information to the terminal device, the terminal device measures the received power of the reference signal, and obtains the measurement result RSRP corresponding to the relay device.

In some embodiments, the first network device sends measurement configuration information to the terminal device. Correspondingly, the terminal device receives the measurement configuration information sent by the first network device. Optionally, the measurement configuration information may be sent before or after receiving the second message, which is not limited in this application.

By sending the measurement result of at least one relay device to the network device through the terminal device, the first network device can select a relay device with better link quality for the first service communication based on the measurement result of at least one relay device, thereby improving the reliability of service transmission.

In some embodiments, the method provided by the embodiment of the present application further includes the following steps: the first network device sends a third message to the terminal device, the third message is used to instruct the terminal device to communicate through the first relay device. Correspondingly, the terminal device receives the third message sent by the first network device.

In some embodiments, the third message includes at least one of the following: identification information of the first relay device; and service information supported by the first relay device.

In some embodiments, the identification information of the first relay device may also include identification information of a logical channel of the first relay device, which is not limited in the present application. The identification information of the logical channel of the first relay device is used to uniquely identify or distinguish different logical channels of the first relay device.

In some embodiments, the third message is any one of the following: MAC CE signaling sent by the first network device to the terminal device; RRC message sent by the first network device to the terminal device; a NAS (Non Access Stratum) message instructing the terminal device by receiving an NGAP (Next Generation Application Protocol) message from the first network device.

In some embodiments, the first relay device is a relay device determined by the first network device for transmitting the first service. Optionally, the first relay device is determined in the at least one relay device mentioned above. Exemplarily, the first network device determines the second relay device according to the measurement result corresponding to at least one relay device sent by the terminal device. For example, according to the measurement result corresponding to at least one relay device sent by the terminal device, the relay device with the best link quality among the at least one relay device is determined as the first relay device. For example, according to the measurement result corresponding to at least one relay device sent by the terminal device, the relay device with the best link quality among the relay devices supporting the second service is determined as the first relay device.

In some embodiments, the first network device sends a third message to the terminal device, and the third message includes identification information of the first relay device. The terminal device determines the first relay device for the first service communication based on the identification information of the first relay device. In some embodiments, the first network device sends a third message to the terminal device, and the third message includes identification information of a logical channel of the first relay device. The terminal device determines the logical channel of the first relay device for the first service communication based on the identification information of the logical channel of the first relay device. In some embodiments, the first network device sends a third message to the terminal device, and the third message includes identification information of the first relay device and identification information of the logical channel of the first relay device. The terminal device determines the logical channel of the first relay device for the first service communication based on the identification information of the logical channel of the first relay device.

In some embodiments, the service information supported by the first relay device includes at least one of the following: explicit indication information of the service; RSC; upper layer information, which refers to information used by the service layer to distinguish services; layer 2 ID. Exemplarily, the service information supported by the second relay device is upper layer information, which can be included in the third message in the form of a character string.

In some embodiments, the third message is also used to instruct the terminal device to perform service communications through multiple relay devices respectively. Exemplarily, the third message is used to instruct the terminal device to perform the first service communication through the first relay device and the third service communication through the second relay device. Exemplarily, the third message is used to instruct the terminal device to perform the first service communication through the logical channel 1 of the first terminal device and the third service communication through the logical channel 2 of the first relay device.

In some embodiments, the method provided by the embodiment of the present application further includes the following steps: the first network device sends a fourth message to the second network device, the fourth message including at least one of the following: service information of the first service, service information supported by at least one relay device. The first network device determines a first relay device for transmitting the first service based on a negotiation result with the second network device.

In some embodiments, the service information of the first service includes at least one of the following: explicit indication information of the service; RSC; upper layer information, the upper layer information refers to information used by the service layer to distinguish the service; layer 2 ID.

In some embodiments, the service information supported by at least one relay device includes at least one of the following: explicit indication information of the service; RSC; upper layer information, which refers to information used by the service layer to distinguish the service; and layer 2 ID.

In some embodiments, the first network device and the second network device negotiate to determine the first relay device based on the service information supported by at least one relay device and the service information of the first service. Exemplarily, the first network device and the second network device determine at least one relay device that supports the first service communication based on the service information supported by at least one relay device and the service information of the first service, and then determine the first relay device based on the working condition of at least one relay device that supports the first service communication. For example, the relay devices that are performing other service communications are excluded, and the first relay device is determined from at least one idle relay device that supports the first service communication.

In some embodiments, the first network device determines a relay device that supports the first service based on service information supported by at least one relay device and service information of the first service. If it is determined that among the relay devices that support the first service, there is a relay device located in the service cell of the second network device, the first network device negotiates with the second network device, and determines the first network device based on the negotiation result between the first network device and the second network device. For example, if the negotiation result between the first network device and the second network device is that the relay device located in the service cell of the second network device is in a busy state, or the link quality of the relay device located in the service cell of the first network device is better, then the first relay device is determined among the relay devices located in the service cell of the first network device. For another example, if the negotiation result between the first network device and the second network device is that the link quality of the relay device located in the service cell of the second network device is better and is in an idle state, then the relay device located in the service cell of the second network device is determined as the first relay device.

By sending the third message to the terminal device through the first network device, the terminal device can learn the first relay device for the first service communication, thereby achieving the management of the link of the relay network and improving the reliability of service transmission.

Please refer to Figure 5, which shows a flow chart of a relay communication method provided by another embodiment of the present application. The method can be applied to the network architecture shown in Figure 1. The method can include at least one of the following steps 510-570.

Step 510: The terminal device sends a second message to the first network device, where the second message is used to instruct the terminal device to start the first service communication and/or end the second service communication.

Step 520: The first network device sends measurement configuration information to the terminal device.

Step 530: The terminal device measures and obtains a measurement result corresponding to at least one relay device according to the measurement configuration information, where the measurement result is used to indicate the link quality between the terminal device and the relay device.

Step 540: The terminal device sends a first message to the first network device, where the first message includes service information supported by at least one relay device and a measurement result corresponding to at least one relay device.

In some embodiments, the terminal device may also report the measurement results corresponding to at least one relay device to the first network device through other messages. That is to say, the service information and the measurement results are respectively carried by different messages. Exemplarily, the terminal device sends a measurement report message to the first network device, and the measurement report message is used to indicate the measurement results corresponding to at least one relay device. The measurement report message may be sent before the first message, or after the first message, or simultaneously with the first message, and this application does not limit this.

Step 550: The first network device sends a fourth message to the second network device, where the fourth message includes at least one of the following: service information of the first service, and service information supported by at least one relay device.

Step 560: The first network device determines a first relay device for transmitting the first service based on the negotiation result with the second network device.

Step 570: The first network device sends a third message to the terminal device, where the third message is used to instruct the terminal device to communicate through the first relay device.

In some embodiments, the above step 510 may not be performed. Exemplarily, when the first network device sends downlink data transmission to the terminal device, the process starts from step 520 where the first network device sends measurement configuration information to the terminal device.

It should be noted that the execution order of the above steps 510, 520, and 540 can be swapped. For example, step 520 can be executed before step 510 or after step 540 (for example, after executing step 530, the terminal device sends a measurement message to the first network, and the measurement message is used to indicate the measurement result corresponding to at least one relay device). This application does not limit the execution order between steps 510, 520, and 540. Step 530 needs to be executed after step 520, but the execution order between step 530 and step 510 and step 540 can be swapped.

In addition, the technical solution provided in the embodiment of the present application is that the terminal device can switch to N types of business communications when performing M types of business communications; or it can switch to M types of business communications when performing N types of business communications. Wherein, M is greater than N, M is an integer greater than 1, and N is a positive integer. Exemplarily, the terminal device switches from performing two types of business communications to performing one type of business communications; or it can switch from performing one type of business communications to performing two types of business communications.

Please refer to Figure 6, which shows a flow chart of a relay communication method provided by another embodiment of the present application. The method may include at least one of the following steps 610-620.

Step 610: The network device sends configuration information to the terminal device, where the configuration information is used to configure relay transmission related to at least two services.

Correspondingly, the terminal device receives the configuration information sent by the network device.

In some embodiments, the configuration information is used to configure at least one of the following: relay devices corresponding to different bearers or services; bearers or services corresponding to different relay devices; whether different bearers or services are configured with data replication transmission; whether different bearers or services activate data replication transmission; main paths corresponding to different bearers or services; and the correspondence between services and bearers.

In some embodiments, for a bearer or service that is not configured with data copy transmission, data copy transmission is not supported; for a bearer or service that is configured with data copy transmission, data copy transmission is supported.

In some embodiments, for a bearer or service that is configured for data replication transmission but not activated for data replication transmission, data replication transmission is not supported; for a bearer or service that is configured for data replication transmission and activated for data replication transmission, data replication transmission is supported.

In some embodiments, for a bearer or service for which data replication transmission is configured and activated, relay transmission may be performed on different paths, and therefore a primary path corresponding to the bearer or service needs to be configured for the terminal device.

In some embodiments, the control PDU (Protocol Data Unit) needs to be transmitted on the primary path, and the data PDU can be transmitted on the primary path or on the secondary path, so it is necessary to configure the primary path corresponding to the bearer or the service. The data PDU can be one or more. Exemplarily, there are multiple data PDUs, some of which are transmitted on the secondary path, and some of which are transmitted on the primary path.

In some embodiments, different bearers or services may be relayed and transmitted on different links of the same relay device.

In some embodiments, different bearers or services may also be relayed and transmitted on different links of different relay devices.

In some embodiments, the relay devices corresponding to different bearers or services include at least one of the following: RLC bearers under the relay devices corresponding to different bearers or services; RLC channels under the relay devices corresponding to different bearers or services; logical channels under the relay devices corresponding to different bearers or services. Exemplarily, the relay devices corresponding to different bearers or services are shown in Table 1.

Table 1: Relay equipment corresponding to different bearers or services

承载或业务Bearer or business	中继设备Relay equipment	RLC承载RLC bearer	RLC信道RLC Channel	逻辑信道Logical Channel
承载1(业务1)Bearer 1 (Service 1)	中继设备1 Relay device 1	RLC承载1 RLC bearer 1	RLC信道1 RLC channel 1	逻辑信道1 Logical channel 1
承载2(业务2)Bearer 2 (Service 2)	中继设备2Relay device 2	RLC承载2RLC bearer 2	RLC信道2RLC channel 2	逻辑信道2Logical channel 2
······	······	······	······	······
承载n(业务n)Bearer n (service n)	中继设备nRelay device	RLC承载nRLC bearer n	RLC信道nRLC channel n	逻辑信道nLogical channel n

In some embodiments, different links of the same relay device may respectively transmit different bearers or different services.

In some embodiments, the bearers or services corresponding to different relay devices include at least one of the following: bearers or services corresponding to RLC bearers under different relay devices; bearers or services corresponding to RLC channels under different relay devices; bearers or services corresponding to logical channels under different relay devices. Exemplarily, the relay devices corresponding to different bearers or services are shown in Table 2.

Table 2: Bearers or services corresponding to different relay devices

中继设备Relay equipment	RLC承载RLC bearer	RLC信道RLC Channel	逻辑信道Logical Channel	承载或业务Bearer or business

中继设备1Relay device 1	RLC承载1 RLC bearer 1	RLC信道1 RLC channel 1	逻辑信道1 Logical channel 1	承载1(业务1)Bearer 1 (Service 1)
中继设备2Relay device 2	RLC承载2RLC bearer 2	RLC信道2RLC channel 2	逻辑信道2Logical channel 2	承载2(业务2)Bearer 2 (Service 2)
······	······	······	······	······
中继设备nRelay device	RLC承载nRLC bearer n	RLC信道nRLC channel n	逻辑信道nLogical channel n	承载n(业务n)Bearer n (service n)

In some embodiments, the correspondence between services and bearers includes: one service corresponds to one bearer; or multiple services correspond to one bearer. For example, bearer 1 corresponds to service 1, and bearer 2 corresponds to service 2. For another example, bearer 1 corresponds to service 1, service 2, and service 3, and bearer 2 corresponds to service 4, service 5, and service 6.

In some embodiments, the configuration information is configuration information for an adaptation layer. The adaptation layer refers to some interface types required by each communication device to implement communication, such as PC5 and Uu.

In some embodiments, the multiple services include: emergency services and non-emergency services. In some embodiments, the multiple services may also include: voice, traffic, video, etc.

Step 620: The terminal device relays at least one of the at least two services according to the configuration information.

In some embodiments, the terminal device relays at least one of the at least two services according to the configuration information of the at least two services included in the configuration information. Exemplarily, the configuration information includes configuration information of service 1, service 2, service 3, and service 4, and the terminal device relays at least one of the above services 1, service 2, service 3, and service 4. For example, the terminal device relays service 1 and service 3. For another example, the terminal device relays service 2, service 3, and service 4.

Exemplarily, the network device sends configuration information to the terminal device, where the configuration information is used to indicate logical channels under the relay device corresponding to at least two services. The terminal device then relays at least one of the at least two services according to the instructions of the configuration information.

The technical solution provided in the embodiment of the present application sends configuration information to the terminal device through the network device, configures the relay transmission related to at least two services, realizes the management of the relay transmission of different services, and improves the reliability of service transmission.

In addition, in the embodiment of the present application, the terminal device can relay transmission of at least one service based on the configuration information, thereby realizing the management of relay transmission of different services.

Please refer to Figure 7, which shows a flow chart of a relay communication method provided by another embodiment of the present application. The method may include at least one of the following steps 710-750.

Step 710, when a wireless link failure occurs in a first relay connection used for a first service, the terminal device sends a reporting message to a network device through a second connection used for a second service, and the reporting message is used to indicate that a wireless link failure occurs in the first relay connection; wherein the first service and the second service are different.

In some embodiments, a wireless link failure occurs in the first relay connection, including at least one of the following: a wireless link failure occurs between the terminal device and the first relay device; the first relay device notifies the terminal device of a wireless link failure between the first relay device and the network device; wherein the first relay device is a relay device for relaying the transmission of the first service.

The present application does not limit the cause of the radio link failure. For example, the radio link failure is caused by suspend.

In some embodiments, different services include emergency services and non-emergency services. In some embodiments, different services include voice, video, and telephone traffic.

In some embodiments, the first service is an emergency service and the second service is a non-emergency service; or, the first service is a non-emergency service and the second service is an emergency service.

In some embodiments, the reporting message includes: service information of the first service.

The present application does not limit the specific content of the service information of the first service. For example, the service information of the first service includes identification information of the first service.

In some embodiments, the service information of the first service includes at least one of the following: explicit indication information of the service; RSC; upper layer information, where the upper layer information refers to information used by the service layer to distinguish services; and layer 2 ID. The displayed indication information of the service is used to uniquely identify or distinguish different services.

Step 720: When the first condition is met, the terminal device starts or restarts the first timer.

The first condition includes: a radio link failure occurs in the first relay connection, or a reporting message is sent to the network device.

Exemplarily, a radio link failure occurs in the first relay connection, and the terminal device starts or restarts the first timer. Exemplarily, the terminal device sends a report message to the network device, and starts or restarts the first timer.

In some embodiments, the first condition also includes at least one of the following: the cell corresponding to the first relay connection is a primary cell of the terminal device; and the cell corresponding to the second connection is not a primary cell of the terminal device.

Exemplarily, the cell corresponding to the first relay connection is the primary cell of the terminal device, a radio link failure occurs in the first relay connection, and the terminal device starts or restarts the first timer. Exemplarily, the cell corresponding to the second connection is not the primary cell of the terminal device, a radio link failure occurs in the first relay connection, and the terminal device starts or restarts the first timer.

In some embodiments, the first condition also includes: SRB1 is configured on the second connection; and no radio link failure occurs in the second connection.

Exemplarily, SRB1 is configured on the second connection, the terminal device sends a report message to the network device, and starts or restarts the first timer. Exemplarily, no radio link failure occurs in the second connection, the terminal device sends a report message to the network device, and starts or restarts the first timer.

Step 730: When the first timer times out, the terminal device re-establishes the connection.

In some embodiments, the terminal device sends a request message for re-establishing a connection to the network device, and the network device re-establishes the connection based on the request message.

In some embodiments, when the second connection satisfies the second condition, the terminal device re-establishes the connection; wherein the second condition includes at least one of the following: SRB1 is not configured on the second connection; a wireless link failure occurs in the second connection.

Exemplarily, SRB1 is not configured on the second connection, and the terminal device re-establishes the connection. Exemplarily, a radio link failure occurs in the second connection, and the terminal device re-establishes the connection.

In some embodiments, reestablishing the connection refers to reestablishing the RRC connection.

In some embodiments, the re-established connection is used to transmit the first service.

It should be noted that the re-established connection can be the above-mentioned first relay connection or the third connection, and the third connection can be a relay connection or a non-relay connection, which is not limited in this application.

The above-mentioned second connection can be a relay connection or a non-relay connection, which is not limited in this application.

Step 740: The network device sends a switching message to the terminal device, where the switching message is used to indicate switching to another connection to transmit the first service.

Step 750: When the terminal device receives a switching message from the network device, the terminal device stops the first timer.

In some embodiments, upon receiving a switching message from a network device, the terminal device stops the first timer and initializes the value of the first timer.

According to the technical solution provided by the embodiment of the present application, the terminal device reports a problem with the first relay connection to the network device through the second connection, so that the network device can promptly instruct the terminal device to switch to other connections to transmit the first service, thereby ensuring the reliability of relay transmission.

In addition, the embodiment of the present application uses a first timer to time the time when the problem occurs in the first relay connection, and re-establishes the connection after timeout. If the second connection does not meet the conditions or there is a problem with the second connection, the connection is directly re-established. If there is a problem with the first relay connection, the first business communication is restored as soon as possible, thereby ensuring the reliability of relay transmission.

The following are device embodiments of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

Please refer to Figure 8, which shows a block diagram of a relay communication device provided by an embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the terminal device introduced above, or it can be set in the terminal device. As shown in Figure 8, the device 800 may include: a sending module 810.

The sending module 810 is configured to send a first message to a first network device, where the first message includes service information supported by at least one relay device.

In some embodiments, the first message also includes a measurement result corresponding to the at least one relay device, and the measurement result is used to indicate the link quality between the terminal device and the relay device.

In some embodiments, the sending module 810 is further used to send a second message to the first network device, where the second message is used to instruct the terminal device to start the first service communication and/or end the second service communication.

In some embodiments, as shown in FIG. 8 , the apparatus 800 further includes: a receiving module 820 .

The receiving module 820 is used to receive a third message sent by the first network device, where the third message is used to instruct the terminal device to communicate through the first relay device.

In some embodiments, the third message includes at least one of the following:

identification information of the first relay device;

Service information supported by the first relay device.

In some embodiments, the receiving module 820 is further configured to receive measurement configuration information from the first network device.

In some embodiments, as shown in FIG. 8 , the apparatus 800 further includes a processing module 830 .

The processing module 830 is used to measure and obtain a measurement result corresponding to the at least one relay device according to the measurement configuration information, where the measurement result is used to indicate the link quality between the terminal device and the relay device.

In some embodiments, the measurement configuration information includes service information targeted for measurement.

In some embodiments, the business information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.

In some embodiments, the first message is any one of the following:

The terminal device sends a media access layer control unit MAC CE signaling to the first network device;

A radio resource control RRC message sent by the terminal device to the first network device;

The core network device receives an access layer NAS message from the terminal device and instructs the first network device to send a next generation application protocol NGAP message.

In some embodiments, the first service is an emergency service;

or,

The first service is a non-emergency service.

Please refer to Figure 9, which shows a block diagram of a relay communication device provided by another embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the network device introduced above, or it can be set in the network device. As shown in Figure 9, the device 900 can include: a receiving module 910.

The receiving module 910 is used to receive a first message sent by the terminal device, where the first message includes service information supported by at least one relay device.

In some embodiments, the receiving module 910 is further used to receive a second message sent by the terminal device, where the second message is used to instruct the terminal device to start or end the first service communication.

In some embodiments, as shown in FIG. 9 , the apparatus 900 further includes a sending module 920 .

The sending module 920 is used to send a third message to the terminal device, where the third message is used to instruct the terminal device to communicate through the first relay device.

In some embodiments, the third message includes at least one of the following:

identification information of the first relay device;

Service information supported by the first relay device.

In some embodiments, the sending module 920 is further used to send a fourth message to the second network device, the fourth message including at least one of the following: service information of the first service, service information supported by the at least one relay device;

In some embodiments, as shown in FIG. 9 , the apparatus 900 further includes a processing module 930 .

The processing module 930 is used to determine the first relay device for transmitting the first service based on the negotiation result with the second network device.

In some embodiments, the sending module 920 is further configured to send measurement configuration information to the terminal device.

Explicit indication of the business;

Relay Service Code RSC;

Layer 2 ID.

In some embodiments, the first message is any one of the following:

In some embodiments, the first service is an emergency service;

or,

The first service is a non-emergency service.

Please refer to Figure 10, which shows a block diagram of a relay communication device provided by another embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the terminal device introduced above, or it can be set in the terminal device. As shown in Figure 10, the device 1000 may include: a receiving module 1010 and a processing module 1020.

The receiving module 1010 is used to receive configuration information sent by a network device, where the configuration information is used to configure relay transmission related to at least two services.

The processing module 1020 is used to relay at least one of the at least two services according to the configuration information.

In some embodiments, the configuration information is used to configure at least one of the following:

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Whether different bearers or services are configured with data replication transmission;

Whether data replication and transmission are activated for different bearers or services;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.

In some embodiments, the relay devices corresponding to the different bearers or services include at least one of the following:

Radio link control RLC bearers under relay devices corresponding to different bearers or services;

RLC channels under relay equipment corresponding to different bearers or services;

Logical channels under relay equipment corresponding to different bearers or services.

In some embodiments, the bearers or services corresponding to the different relay devices include at least one of the following:

RLC bearers under different relay devices correspond to bearers or services;

The bearers or services corresponding to the RLC channels under different relay devices;

The bearers or services corresponding to the logical channels under different relay devices.

In some embodiments, the correspondence between the service and the bearer includes:

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.

In some embodiments, the configuration information is configuration information for an adaptation layer.

In some embodiments, the multiple services include: emergency services and non-emergency services.

Please refer to Figure 11, which shows a block diagram of a relay communication device provided by another embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the network device introduced above, or it can be set in the network device. As shown in Figure 11, the device 1100 may include: a sending module 1110.

The sending module 1110 is used to send configuration information to the terminal device, where the configuration information is used to configure relay transmission related to at least two services.

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.

RLC bearers under different relay devices correspond to bearers or services;

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.

Please refer to Figure 12, which shows a block diagram of a relay communication device provided by another embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the terminal device introduced above, or it can be set in the terminal device. As shown in Figure 12, the device 1200 may include: a sending module 1210.

The sending module 1210 is used to send a reporting message to a network device through a second connection used for a second service when a wireless link failure occurs in a first relay connection used for a first service, wherein the reporting message is used to indicate that a wireless link failure occurs in the first relay connection; wherein the first service and the second service are different.

Explicit indication of the business;

Relay Service Code RSC;

Layer 2 ID.

In some embodiments, when a radio link failure occurs in the first relay connection or the reporting message is sent to a network device, the apparatus further includes a processing module 1220 .

Processing module 1220 is used to start or restart a first timer when a first condition is met; wherein the first condition includes: a wireless link failure occurs in the first relay connection, or the reporting message is sent to the network device; when the first timer times out, re-establish the connection.

In some embodiments, the first condition further includes at least one of the following:

The cell corresponding to the first relay connection is a primary cell of the terminal device;

The cell corresponding to the second connection is not the primary cell of the terminal device.

In some embodiments, the processing module 1220 is further used to stop the first timer when receiving a switching message from the network device; wherein the switching message is used to indicate switching to another connection to transmit the first service.

In some embodiments, when a radio link failure occurs in the first relay connection, the processing module 1220 is further configured to re-establish a connection when the second connection satisfies a second condition;

The second condition includes at least one of the following:

No signaling radio bearer SRB1 is configured on the second connection;

A wireless link failure occurs in the second connection.

In some embodiments, the wireless link failure of the first relay connection includes at least one of the following:

A wireless link failure occurs between the terminal device and the first relay device;

The first relay device notifies the terminal device that a wireless link failure occurs between the first relay device and the network device;

The first relay device is a relay device used for relaying and transmitting the first service.

In some embodiments, the first service is an emergency service and the second service is a non-emergency service;

or,

The first service is a non-emergency service, and the second service is an emergency service.

Please refer to Figure 13, which shows a block diagram of a relay communication device provided by another embodiment of the present application. The device has the function of implementing the above-mentioned relay communication method example, and the function can be implemented by hardware, or by hardware executing corresponding software. The device can be the network device introduced above, or it can be set in the network device. As shown in Figure 13, the device 1300 may include: a receiving module 1310.

The receiving module 1310 is used to receive a reporting message sent by a terminal device through a second connection used for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection used for a first service; wherein the first service and the second service are different.

Explicit indication of the business;

Relay Service Code RSC;

Layer 2 ID.

In some embodiments, as shown in FIG. 13 , the apparatus 1300 further includes a sending module 1320 .

The sending module 1320 is used to send a switching message to the terminal device, where the switching message is used to indicate switching to other connections to transmit the first service.

In some embodiments, the receiving module 1310 is further used to receive a request message initiated by the terminal device for re-establishing a connection;

In some embodiments, as shown in FIG. 13 , the device 1300 further includes a processing module 1330 .

The processing module 1330 is used to re-establish the connection according to the request message.

A wireless link failure occurs between the first relay device and the network device;

or,

One point that needs to be explained is that, when the device provided in the above embodiment realizes its function, it only uses the division of the above-mentioned functional modules as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

Please refer to Figure 14, which shows a schematic diagram of the structure of a terminal device provided by an embodiment of the present application. The terminal device 1400 may include: a processor 1401, a transceiver 1402, and a memory 1403. The processor 1401 is used to implement the functions of the above-mentioned processing module 830, processing module 1020, and processing module 1230, and the transceiver 1402 is used to implement the functions of the above-mentioned sending module 810, sending module 1210 and/or receiving module 820, receiving module 1010.

The processor 1401 includes one or more processing cores, and the processor 1401 executes various functional applications and information processing by running software programs and modules. The processor 1401 is used to execute other steps except the sending and receiving steps executed by the terminal device in the above method embodiment.

The transceiver 1402 may include a receiver and a transmitter. For example, the receiver and the transmitter may be implemented as the same wireless communication component, and the wireless communication component may include a wireless communication chip and a radio frequency antenna. The transceiver 1402 is used to perform the sending and/or receiving steps performed by the terminal device in the above method embodiment.

The memory 1403 may be connected to the processor 1401 and the transceiver 1402 .

The memory 1403 may be used to store a computer program executed by the processor, and the processor 1401 is used to execute the computer program to implement each step in the above method embodiment.

In addition, the memory can be implemented by any volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or an optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static access memory, a read-only memory, a magnetic memory, a flash memory, and a programmable read-only memory.

In an exemplary embodiment, the transceiver 1403 is configured to send a first message to a first network device, where the first message includes service information supported by at least one relay device.

In another exemplary embodiment, the transceiver 1403 is used to receive configuration information sent by a network device, where the configuration information is used to configure relay transmission related to at least two services.

In another exemplary embodiment, the transceiver 1403 is used to send a reporting message to a network device through a second connection for a second service when a wireless link failure occurs in a first relay connection for a first service, wherein the reporting message is used to indicate that a wireless link failure occurs in the first relay connection; wherein the first service and the second service are different.

For details not described in detail in this embodiment, please refer to the above embodiments, which will not be described in detail here.

Please refer to Figure 15, which shows a schematic diagram of the structure of a network device provided by an embodiment of the present application. The network device 1500 can be used to execute the method steps performed by the network device in the above embodiment. Among them, the processor 1501 is used to implement the functions of the above processing module 930 and the processing module 1330, and the transceiver 1502 is used to implement the functions of the above sending module 920, the sending module 1110, the sending module 1320 and/or the receiving module 910 and the receiving module 1310.

The processor 1501 includes one or more processing cores, and the processor 1501 executes various functional applications and information processing by running software programs and modules. The processor 1501 is used to execute other steps except the receiving and sending steps executed by the network device in the above method embodiment.

The transceiver 1502 may include a receiver and a transmitter. For example, the transceiver 1502 may include a wired communication component, which may include a wired communication chip and a wired interface (such as an optical fiber interface). Optionally, the transceiver 1502 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna. The transceiver 1502 is used to perform the receiving and/or sending steps performed by the network device in the above method embodiment.

The memory 1503 may be connected to the processor 1501 and the transceiver 1502 .

The memory 1503 may be used to store a computer program executed by the processor, and the processor 1501 is used to execute the computer program to implement each step performed by the network device in the above method embodiment.

In addition, memory 1503 can be implemented by any volatile or non-volatile storage device or a combination thereof, and the volatile or non-volatile storage device includes but is not limited to: a magnetic disk or an optical disk, an electrically erasable programmable read-only memory, an erasable programmable read-only memory, a static access memory, a read-only memory, a magnetic memory, a flash memory, and a programmable read-only memory.

In an exemplary embodiment, the transceiver 1503 is used to receive a first message sent by a terminal device, where the first message includes service information supported by at least one relay device.

In another exemplary embodiment, the transceiver 1503 is used to send configuration information to the terminal device, where the configuration information is used to configure relay transmission related to at least two services.

In another exemplary embodiment, the transceiver 1503 is used to receive a reporting message sent by a terminal device through a second connection for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection for a first service; wherein the first service and the second service are different.

The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement any of the above-mentioned relay communication methods. Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc. Among them, the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

An embodiment of the present application also provides a chip, which includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement any of the above-mentioned relay communication methods.

An embodiment of the present application also provides a computer program product, which includes a computer program stored in a computer-readable storage medium. A processor reads and executes the computer program from the computer-readable storage medium to implement any of the above-mentioned relay communication methods.

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

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

The term "multiple" as used herein refers to two or more than two. "And/or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the related objects are in an "or" relationship.

The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order to that shown in the figure. The embodiments of the present application are not limited to this.

Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

A relay communication method, characterized in that the method is executed by a terminal device, and the method comprises:

A first message is sent to a first network device, where the first message includes service information supported by at least one relay device.
The method according to claim 1 is characterized in that the first message also includes a measurement result corresponding to the at least one relay device, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The method according to claim 1 or 2, characterized in that the method further comprises:

A second message is sent to the first network device, where the second message is used to instruct the terminal device to start a first service communication and/or to end a second service communication.
The method according to any one of claims 1 to 3, characterized in that after sending the first message to the first network device, the method further comprises:

Receive a third message sent by the first network device, where the third message is used to instruct the terminal device to communicate through the first relay device.
The method according to claim 4, characterized in that the third message includes at least one of the following:

identification information of the first relay device;

The service information supported by the first relay device.
The method according to any one of claims 1 to 5, characterized in that the method further comprises:

Receiving measurement configuration information from the first network device;

According to the measurement configuration information, a measurement result corresponding to the at least one relay device is measured and obtained, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The method according to claim 6, characterized in that the measurement configuration information includes service information targeted by the measurement.
The method according to any one of claims 1 to 7, characterized in that the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The method according to any one of claims 1 to 8, characterized in that the first message is any one of the following:

The terminal device sends a media access layer control unit MAC CE signaling to the first network device;

A radio resource control RRC message sent by the terminal device to the first network device;

The core network device receives an access layer NAS message from the terminal device and instructs the first network device to send a next generation application protocol NGAP message.
The method according to claim 3 is characterized in that the first service is an emergency service; or the first service is a non-emergency service.
A relay communication method, characterized in that the method is performed by a first network device, and the method comprises:

A first message sent by a terminal device is received, where the first message includes service information supported by at least one relay device.
The method according to claim 11 is characterized in that the first message also includes a measurement result corresponding to the at least one relay device, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The method according to claim 11 or 12, characterized in that the method further comprises:

A second message sent by the terminal device is received, where the second message is used to instruct the terminal device to start a first service system and/or end a second service communication.
The method according to any one of claims 11 to 13, characterized in that after receiving the first message sent by the terminal device, it also includes:

A third message is sent to the terminal device, where the third message is used to instruct the terminal device to communicate through the first relay device.
The method according to claim 14, characterized in that the third message includes at least one of the following:

identification information of the first relay device;

The service information supported by the first relay device.
The method according to claim 14 or 15, characterized in that before sending the third message to the terminal device, it also includes:

Sending a fourth message to the second network device, the fourth message including at least one of the following: service information of the first service, and service information supported by the at least one relay device;

Based on the negotiation result with the second network device, the first relay device for transmitting the first service is determined.
The method according to any one of claims 11 to 16, characterized in that the method further comprises:

Send measurement configuration information to the terminal device.
The method according to claim 17, characterized in that the measurement configuration information includes service information targeted by the measurement.
The method according to any one of claims 11 to 18, characterized in that the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The method according to any one of claims 11 to 19, characterized in that the first message is any one of the following:

The terminal device sends a media access layer control unit MAC CE signaling to the first network device;

A radio resource control RRC message sent by the terminal device to the first network device;

The core network device receives a non-access layer NAS message from the terminal device and instructs the first network device to send a next generation application protocol NGAP message.
The method according to claim 13 or 16 is characterized in that the first service is an emergency service; or the first service is a non-emergency service.
A relay communication method, characterized in that the method is executed by a terminal device, and the method comprises:

Receiving configuration information sent by a network device, where the configuration information is used to configure relay transmission related to at least two services;

According to the configuration information, at least one of the at least two services is relayed and transmitted.
The method according to claim 22, characterized in that the configuration information is used to configure at least one of the following:

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Whether different bearers or services are configured with data replication transmission;

Whether data replication and transmission are activated for different bearers or services;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.
The method according to claim 23, characterized in that the relay devices corresponding to the different bearers or services include at least one of the following:

Radio link control RLC bearers under relay devices corresponding to different bearers or services;

RLC channels under relay equipment corresponding to different bearers or services;

Logical channels under relay equipment corresponding to different bearers or services.
The method according to claim 23 or 24, characterized in that the bearers or services corresponding to the different relay devices include at least one of the following:

RLC bearers under different relay devices correspond to bearers or services;

The bearers or services corresponding to the RLC channels under different relay devices;

The bearers or services corresponding to the logical channels under different relay devices.
The method according to any one of claims 23 to 25, characterized in that the correspondence between the service and the bearer comprises:

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.
The method according to any one of claims 22 to 26 is characterized in that the configuration information is configuration information for an adaptation layer.
The method according to any one of claims 22 to 25 is characterized in that the multiple services include: emergency services and non-emergency services.
A relay communication method, characterized in that the method is performed by a network device, and the method comprises:

Configuration information is sent to a terminal device, where the configuration information is used to configure relay transmission related to at least two services.
The method according to claim 29, wherein the configuration information is used to configure at least one of the following:

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Whether different bearers or services are configured with data replication transmission;

Whether data replication transmission is activated for different bearers or services;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.
The method according to claim 30, characterized in that the relay devices corresponding to the different bearers or services include at least one of the following:

Radio link control RLC bearers under relay devices corresponding to different bearers or services;

RLC channels under relay equipment corresponding to different bearers or services;

Logical channels under relay equipment corresponding to different bearers or services.
The method according to claim 30 or 31, characterized in that the bearers or services corresponding to the different relay devices include at least one of the following:

RLC bearers under different relay devices correspond to bearers or services;

The bearers or services corresponding to the RLC channels under different relay devices;

The bearers or services corresponding to the logical channels under different relay devices.
The method according to any one of claims 30 to 32, characterized in that the correspondence between the service and the bearer comprises:

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.
The method according to any one of claims 29 to 33 is characterized in that the configuration information is configuration information for an adaptation layer.
The method according to any one of claims 29 to 34 is characterized in that the multiple services include: emergency services and non-emergency services.
A relay communication method, characterized in that the method is executed by a terminal device, and the method comprises:

In the event of a radio link failure in a first relay connection used for a first service, a reporting message is sent to a network device via a second connection used for a second service, wherein the reporting message is used to indicate that a radio link failure has occurred in the first relay connection; wherein the first service and the second service are different.
The method according to claim 36 is characterized in that the reporting message includes: business information of the first business.
The method according to claim 37, wherein the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The method according to any one of claims 36 to 38 is characterized in that, when a radio link failure occurs in the first relay connection or the reporting message is sent to the network device, the method further comprises:

When a first condition is met, starting or restarting a first timer; wherein the first condition includes: a radio link failure occurs in the first relay connection, or sending the reporting message to the network device;

When the first timer times out, the connection is re-established.
The method according to claim 39, characterized in that the first condition further comprises at least one of the following:

The cell corresponding to the first relay connection is a primary cell of the terminal device;

The cell corresponding to the second connection is not the primary cell of the terminal device.
The method according to claim 39 or 40, characterized in that after starting or restarting the first timer, it also includes:

When a switching message is received from the network device, the first timer is stopped; wherein the switching message is used to indicate switching to another connection to transmit the first service.
The method according to any one of claims 36 to 41, characterized in that, when a wireless link failure occurs in the first relay connection, the method further comprises:

If the second connection satisfies the second condition, reestablishing the connection;

The second condition includes at least one of the following:

No signaling radio bearer SRB1 is configured on the second connection;

A wireless link failure occurs in the second connection.
The method according to any one of claims 36 to 42, characterized in that the wireless link failure of the first relay connection comprises at least one of the following:

A wireless link failure occurs between the terminal device and the first relay device;

The first relay device notifies the terminal device that a wireless link failure occurs between the first relay device and the network device;

The first relay device is a relay device used for relaying and transmitting the first service.
The method according to any one of claims 36 to 43, characterized in that

The first service is an emergency service, and the second service is a non-emergency service;

or,

The first service is a non-emergency service, and the second service is an emergency service.
A relay communication method, characterized in that the method is performed by a network device, and the method comprises:

A reporting message is received from a terminal device via a second connection for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection for a first service; wherein the first service and the second service are different.
The method according to claim 45 is characterized in that the reporting message includes: business information of the first business.
The method according to claim 46, characterized in that the business information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The method according to any one of claims 45 to 47, characterized in that after the receiving terminal device sends a report message through the second connection for the second service, it also includes:

A switching message is sent to the terminal device, where the switching message is used to indicate switching to another connection to transmit the first service.
The method according to any one of claims 45 to 48, characterized in that after the receiving terminal device sends a report message through the second connection for the second service, it also includes:

Receiving a request message initiated by the terminal device for re-establishing a connection;

The connection is re-established according to the request message.
The method according to any one of claims 45 to 49, wherein the wireless link failure of the first relay connection comprises at least one of the following:

A wireless link failure occurs between the terminal device and the first relay device;

The first relay device notifies the terminal device that a wireless link failure occurs between the first relay device and the network device;

The first relay device is a relay device used for relaying and transmitting the first service.
The method according to any one of claims 45 to 50, characterized in that

The first service is an emergency service, and the second service is a non-emergency service;

or,

The first service is a non-emergency service, and the second service is an emergency service.
A relay communication device, characterized in that the device comprises:

The sending module is used to send a first message to a first network device, wherein the first message includes service information supported by at least one relay device.
The device according to claim 52 is characterized in that the first message also includes a measurement result corresponding to the at least one relay device, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The device according to claim 52 or 53 is characterized in that the sending module is also used to send a second message to the first network device, and the second message is used to instruct the terminal device to start the first service communication and/or end the second service communication.
The device according to any one of claims 52 to 54, characterized in that the device further comprises:

A receiving module is used to receive a third message sent by the first network device, where the third message is used to instruct the terminal device to communicate through the first relay device.
The apparatus according to claim 55, wherein the third message comprises at least one of the following:

identification information of the first relay device;

Service information supported by the first relay device.
The apparatus according to any one of claims 52 to 56, characterized in that the receiving module is further used to receive measurement configuration information from the first network device;

A processing module is used to measure and obtain a measurement result corresponding to the at least one relay device according to the measurement configuration information, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The device according to claim 57 is characterized in that the measurement configuration information includes service information targeted by the measurement.
The device according to any one of claims 52 to 58, wherein the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The device according to any one of claims 52 to 59, wherein the first message is any one of the following:

The terminal device sends a media access layer control unit MAC CE signaling to the first network device;

A radio resource control RRC message sent by the terminal device to the first network device;

The core network device receives an access layer NAS message from the terminal device and instructs the first network device to send a next generation application protocol NGAP message.
The device according to claim 55, characterized in that

The first service is an emergency service;

or,

The first service is a non-emergency service.
A relay communication device, characterized in that the device comprises:

The receiving module is used to receive a first message sent by a terminal device, wherein the first message includes service information supported by at least one relay device.
The device according to claim 62 is characterized in that the first message also includes a measurement result corresponding to the at least one relay device, and the measurement result is used to indicate the link quality between the terminal device and the relay device.
The device according to claim 62 or 63 is characterized in that the receiving module is also used to receive a second message sent by the terminal device, and the second message is used to instruct the terminal device to start the first business communication and/or end the second business communication.
The device according to any one of claims 62 to 64, characterized in that the device also includes:

A sending module is used to send a third message to the terminal device, and the third message is used to instruct the terminal device to communicate through the first relay device.
The apparatus according to claim 65, wherein the third message comprises at least one of the following:

identification information of the first relay device;

Service information supported by the first relay device.
The apparatus according to claim 65 or 66, characterized in that the sending module is further used to send a fourth message to the second network device, and the fourth message includes at least one of the following: service information of the first service, and service information supported by the at least one relay device;

A processing module is used to determine the first relay device for transmitting the first service based on the negotiation result with the second network device.
The apparatus according to any one of claims 62 to 67 is characterized in that the sending module is further used to send measurement configuration information to the terminal device.
The device according to claim 68 is characterized in that the measurement configuration information includes service information targeted by the measurement.
The device according to any one of claims 62 to 69, wherein the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The device according to any one of claims 62 to 70, wherein the first message is any one of the following:

The terminal device sends a media access layer control unit MAC CE signaling to the first network device;

A radio resource control RRC message sent by the terminal device to the first network device;

The core network device receives an access layer NAS message from the terminal device and instructs the first network device to send a next generation application protocol NGAP message.
The device according to claim 64 or 67, characterized in that

The first service is an emergency service;

or,

The first service is a non-emergency service.
A relay communication device, characterized in that the device comprises:

A receiving module, used to receive configuration information sent by a network device, wherein the configuration information is used to configure relay transmission related to at least two services;

A processing module is used to relay and transmit at least one of the at least two services according to the configuration information.
The apparatus according to claim 73, wherein the configuration information is used to configure at least one of the following:

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Whether different bearers or services are configured with data replication transmission;

Whether data replication and transmission are activated for different bearers or services;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.
The apparatus according to claim 74, wherein the relay devices corresponding to the different bearers or services include at least one of the following:

Radio link control RLC bearers under relay devices corresponding to different bearers or services;

RLC channels under relay equipment corresponding to different bearers or services;

Logical channels under relay equipment corresponding to different bearers or services.
The apparatus according to claim 74 or 75, wherein the bearers or services corresponding to the different relay devices include at least one of the following:

RLC bearers under different relay devices correspond to bearers or services;

The bearers or services corresponding to the RLC channels under different relay devices;

The bearers or services corresponding to the logical channels under different relay devices.
The device according to any one of claims 74 to 76, wherein the correspondence between the service and the bearer comprises:

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.
The device according to any one of claims 73 to 77 is characterized in that the configuration information is configuration information for an adaptation layer.
The device according to any one of claims 73 to 76 is characterized in that the multiple services include: emergency services and non-emergency services.
A relay communication device, characterized in that the device comprises:

The sending module is used to send configuration information to the terminal device, where the configuration information is used to configure relay transmission related to at least two services.
The apparatus according to claim 80, wherein the configuration information is used to configure at least one of the following:

Relay equipment corresponding to different bearers or services;

The bearers or services corresponding to different relay devices;

Whether different bearers or services are configured with data replication transmission;

Whether data replication and transmission are activated for different bearers or services;

Main paths corresponding to different bearers or services;

The correspondence between the service and the bearer.
The apparatus according to claim 81, wherein the relay devices corresponding to the different bearers or services include at least one of the following:

Radio link control RLC bearers under relay devices corresponding to different bearers or services;

RLC channels under relay equipment corresponding to different bearers or services;

Logical channels under relay equipment corresponding to different bearers or services.
The apparatus according to claim 81 or 82, wherein the bearers or services corresponding to the different relay devices include at least one of the following:

RLC bearers under different relay devices correspond to bearers or services;

The bearers or services corresponding to the RLC channels under different relay devices;

The bearers or services corresponding to the logical channels under different relay devices.
The device according to any one of claims 81 to 83, wherein the correspondence between the service and the bearer comprises:

One service corresponds to one bearer;

or,

Multiple services correspond to one bearer.
The device according to any one of claims 80 to 84 is characterized in that the configuration information is configuration information for an adaptation layer.
The device according to any one of claims 80 to 85 is characterized in that the multiple services include: emergency services and non-emergency services.
A relay communication device, characterized in that the device comprises:

A sending module is used to send a reporting message to a network device through a second connection used for a second service when a radio link failure occurs in a first relay connection used for a first service, wherein the reporting message is used to indicate that a radio link failure occurs in the first relay connection; wherein the first service and the second service are different.
The device according to claim 87 is characterized in that the reporting message includes: business information of the first business.
The device according to claim 88, characterized in that the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The device according to any one of claims 87 to 89, characterized in that, when a radio link failure occurs in the first relay connection or the reporting message is sent to the network device, the device further comprises:

A processing module is used to start or restart a first timer when a first condition is met; wherein the first condition includes: a wireless link failure occurs in the first relay connection, or the reporting message is sent to the network device; when the first timer times out, re-establish the connection.
The device according to claim 90, characterized in that the first condition further comprises at least one of the following:

The cell corresponding to the first relay connection is a primary cell of the terminal device;

The cell corresponding to the second connection is not the primary cell of the terminal device.
The device according to claim 90 or 91 is characterized in that the processing module is also used to stop the first timer when a switching message is received from the network device; wherein the switching message is used to indicate switching to other connections to transmit the first service.
The device according to any one of claims 87 to 92, characterized in that, in the case where a wireless link failure occurs in the first relay connection, the processing module is further used to re-establish the connection if the second connection satisfies a second condition;

The second condition includes at least one of the following:

No signaling radio bearer SRB1 is configured on the second connection;

A wireless link failure occurs in the second connection.
The device according to any one of claims 87 to 93, wherein the wireless link failure of the first relay connection comprises at least one of the following:

A wireless link failure occurs between the terminal device and the first relay device;

The first relay device notifies the terminal device that a wireless link failure occurs between the first relay device and the network device;

The first relay device is a relay device used for relaying and transmitting the first service.
The device according to any one of claims 87 to 94, characterized in that

The first service is an emergency service, and the second service is a non-emergency service;

or,

The first service is a non-emergency service, and the second service is an emergency service.
A relay communication device, characterized in that the device comprises:

A receiving module is used to receive a reporting message sent by a terminal device through a second connection used for a second service, wherein the reporting message indicates that a radio link failure occurs in a first relay connection used for a first service; wherein the first service and the second service are different.
The device according to claim 96 is characterized in that the reporting message includes: business information of the first business.
The device according to claim 97, wherein the service information includes at least one of the following:

Explicit indication of the business;

Relay Service Code RSC;

Upper layer information, the upper layer information refers to information used by the service layer to distinguish services;

Layer 2 ID.
The device according to any one of claims 96 to 98, characterized in that the device further comprises:

A sending module is used to send a switching message to the terminal device, where the switching message is used to indicate switching to other connections to transmit the first service.
The device according to any one of claims 96 to 99, characterized in that the receiving module is further used to receive a request message initiated by the terminal device for re-establishing a connection;

A processing module is used to re-establish the connection according to the request message.
The device according to any one of claims 96 to 100, wherein the wireless link failure of the first relay connection comprises at least one of the following:

A wireless link failure occurs between the terminal device and the first relay device;

A wireless link failure occurs between the first relay device and the network device;

The first relay device is a relay device used for relaying and transmitting the first service.
The device according to any one of claims 96 to 101, characterized in that

The first service is an emergency service, and the second service is a non-emergency service;

or,

The first service is a non-emergency service, and the second service is an emergency service.
A communication device, characterized in that the communication device includes a processor and a memory, the memory stores a computer program, and the processor executes the computer program to implement the method according to any one of claims 1 to 10, or implement the method according to any one of claims 11 to 21, or implement the method according to any one of claims 22 to 28, or implement the method according to any one of claims 29 to 35, or implement the method according to any one of claims 36 to 44, or implement the method according to any one of claims 45 to 51.
A computer-readable storage medium, characterized in that a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 10, or to implement the method according to any one of claims 11 to 21, or to implement the method according to any one of claims 22 to 28, or to implement the method according to any one of claims 29 to 35, or to implement the method according to any one of claims 36 to 44, or to implement the method according to any one of claims 45 to 51.
A chip, characterized in that the chip includes programmable logic circuits and/or program instructions, which, when the chip is running, are used to implement the method described in any one of claims 1 to 10, or to implement the method described in any one of claims 11 to 21, or to implement the method described in any one of claims 22 to 28, or to implement the method described in any one of claims 29 to 35, or to implement the method described in any one of claims 36 to 44, or to implement the method described in any one of claims 45 to 51.
A computer program product, characterized in that the computer program product comprises a computer program, the computer program is stored in a computer-readable storage medium, a processor reads and executes the computer program from the computer-readable storage medium to implement the method according to any one of claims 1 to 10, or implement the method according to any one of claims 11 to 21, or implement the method according to any one of claims 22 to 28, or implement the method according to any one of claims 29 to 35, or implement the method according to any one of claims 36 to 44, or implement the method according to any one of claims 45 to 51.