WO2023125297A1

WO2023125297A1 - Relay communication method and apparatus, and computer-readable storage medium

Info

Publication number: WO2023125297A1
Application number: PCT/CN2022/141482
Authority: WO
Inventors: 曹春燕; 邓云
Original assignee: 展讯半导体(南京)有限公司
Priority date: 2021-12-31
Filing date: 2022-12-23
Publication date: 2023-07-06
Also published as: CN116419344A

Abstract

A relay communication method and apparatus, and a computer-readable storage medium. The relay communication method comprises: when it is determined that the realization of a relay function cannot be continued, sending first indication information, wherein the first indication information is used for indicating that a relay UE cannot continue realizing the relay function. By means of the solution, the relay UE can inform, in a timely manner, a remote device served by the relay UE that the relay UE itself cannot continue realizing the relay function, such that the remote device can execute any one of the following operations in a timely manner: cell selection/re-selection, relay UE selection/re-selection, RRC re-establishment, etc., so as to re-select an appropriate cell or relay UE for re-accessing a network.

Description

Relay communication method and device, computer readable storage medium

This application claims the priority of the Chinese patent application with the application number 202111680043.5 and the title of the invention "relay communication method and device, computer-readable storage medium" filed with the China Patent Office on December 31, 2021, the entire contents of which are incorporated by reference incorporated in this application.

technical field

The present invention relates to the technical field of wireless communication, in particular to a relay communication method and device, and a computer-readable storage medium.

Background technique

In a wireless communication system, the signal quality of the communication link between some user equipment (User Equipment, UE) at the coverage edge of the base station (such as gNB) and the base station is poor. In order to improve the communication quality of UEs at the coverage edge (hereinafter referred to as remote devices), some UEs within the coverage of the base station can be used as relay devices (Relay UEs), and the relay devices provide relay services for remote devices. A relay device can serve one or more remote devices.

In the prior art, when the communication link between the relay device and the serving base station fails, the relay device performs inter-base station handover, or the relay device performs cell selection/reselection, the relay device notifies its serving The remote device triggers the remote device to reselect a relay device or a serving cell.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a relay communication method. When the relay device learns that it cannot continue to implement the relay function, it notifies the remote device it serves, so that the remote device it serves performs cell selection/reselection , relay device selection/reselection, RRC re-establishment and other operations, and then reselect a suitable cell or relay device to re-connect to the network.

An embodiment of the present invention provides a relay communication method, which is applied in a relay device. The relay communication method includes: sending first indication information when it is determined that the relay function cannot be continued; the first indication information is used for Indicate that the relay device cannot continue to implement the relay function.

Optionally, the sending the first indication information includes: sending the first indication information to a serving remote device; and/or sending the first indication information to an access network device providing a service.

Optionally, the sending the first indication information to the serving remote device includes: sending the high-level signaling PC5-S signaling between the relay device and the serving remote device to the The remote device sends the first indication information; or, sends the first indication information to the remote device through the radio resource control signaling PC5-RRC signaling between the relay device and the serving remote device; Or, broadcast a discovery message, where the discovery message carries the first indication information.

Optionally, the sending the first indication information to the access network device that provides the service includes: carrying the first indication information through radio resource control RRC dedicated signaling, and transmitting the RRC dedicated signaling and sent to the access network device that provides the service.

Optionally, the sending the first indication information includes: detecting that the signal quality of the communication link with the serving access network device is greater than a maximum threshold, and sending the first indication information; The signal quality of the communication link between the access network devices is less than a minimum threshold, and the first indication information is sent; wherein, the maximum threshold and the minimum threshold are configured by the serving access network device to determine whether the device It can realize the relay function.

The embodiment of the present invention also provides another relay communication method, which is applied in a remote device. The relay communication method includes: receiving first indication information; the first indication information is used to indicate that the relay device cannot continue A relay function is realized; the relay device provides a relay service for the remote device; and performs corresponding operations according to the state of its own user equipment.

Optionally, the corresponding operation is performed according to the state of the user equipment itself, including any of the following: if it is in the connected state, execute the RRC reconstruction process; if it is in the idle state or inactive state, execute the relay device selection /reselection; if in idle state or inactive state, perform cell selection/reselection.

The embodiment of the present invention also provides another relay communication method, which is applied to a remote device in a connected state. The relay communication method includes: receiving measurement configuration information sent by a service access network device; the measurement The configuration information is sent by the access network device after receiving the first indication information, and the first indication information is used to indicate that the relay device cannot continue to implement the relay function; the relay device is the remote The device provides a relay service; performs a corresponding measurement operation according to the measurement configuration information, and reports a measurement result corresponding to the measurement operation.

Optionally, after reporting the measurement result corresponding to the measurement operation, the method further includes: receiving a handover command, and executing a cell handover procedure.

Optionally, the remote device receiving the switching command includes: receiving the switching command forwarded by the relay device, the switching command being sent by the access network device.

Optionally, the relay communication method further includes: if the remote device does not report the measurement result, receiving an RRC reestablishment command issued by the serving base station.

Optionally, the receiving the RRC re-establishment command sent by the serving base station includes: receiving the RRC re-establishment command forwarded by the relay device, the RRC re-establishment command being sent by the access network device.

The embodiment of the present invention also provides another relay communication method, which is applied in an access network device. The relay communication method includes: receiving first indication information, and the first indication information is used to indicate that the relay device cannot Continue to implement the relay function; configure and send measurement configuration information to the remote device; the relay device provides the relay service for the remote device.

Optionally, after configuring and sending the measurement configuration information to the remote device, the access network device further includes: receiving the measurement result reported by the remote device.

Optionally, after receiving the measurement result reported by the remote device, the method further includes: sending a handover command to the remote device.

Optionally, the sending the switching command to the remote device includes: sending the switching command to the relay device, and the relay device sends the switching command to the remote device.

Optionally, the relay communication method further includes: sending an RRC reestablishment command to a remote device that has not reported a measurement result.

Optionally, the sending the RRC reconstruction command to the remote device that has not reported the measurement result includes: sending the RRC reconstruction command to the relay device, and the relay device sends the RRC reconstruction command to The remote device that has not reported the measurement result.

An embodiment of the present invention also provides a relay communication device, which is included in a relay device. The relay communication device includes: a first determining unit, configured to determine that the relay function cannot be continued; a first sending unit configured to and sending first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function.

The embodiment of the present invention also provides another relay communication device, which is included in remote equipment, and the relay communication device includes: a first receiving unit, configured to receive first indication information; The purpose is to instruct the relay device to continue to implement the relay function; the relay device provides a relay service for the remote device; the first execution unit is configured to perform corresponding operations according to its own user equipment status.

The embodiment of the present invention also provides another relay communication device, which is included in the remote device in the connected state, and the relay communication device includes: a second receiving unit, configured to receive the Measurement configuration information; the measurement configuration information is sent by the access network device after receiving the first indication information, and the first indication information is used to indicate that the relay device cannot continue to implement the relay function; the middle The relay device provides a relay service for the remote device; the second execution unit is configured to perform a corresponding measurement operation according to the measurement configuration information, and report a measurement result corresponding to the measurement operation.

The embodiment of the present invention also provides another relay communication device, which is included in the access network equipment. The relay communication device includes: a third receiving unit, configured to receive first indication information, and the first indication information It is used to indicate that the relay device cannot continue to implement the relay function; the second sending unit is configured to configure and deliver measurement configuration information to the remote device; the relay device provides a relay service for the remote device.

An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program is executed by a processor The steps of any one of the relay communication methods described above are executed during operation.

The embodiment of the present invention also provides another relay communication device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes when running the computer program Steps in any one of the relay communication methods described above.

Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

When the relay device determines that it cannot continue to implement the relay function, the relay device may send first indication information to indicate that it cannot continue to implement the relay function. The remote device served by the relay device can receive the first indication information, thereby knowing that the relay device cannot continue to implement the relay function, and then perform cell selection/reselection and relay device selection/reselection according to the state of the user equipment , RRC re-establishment and other operations, and re-select a suitable cell or relay device to re-connect to the network.

Description of drawings

FIG. 1 is a flowchart of a relay communication method in an embodiment of the present invention;

FIG. 2 is a structure diagram of a communication system in an embodiment of the present invention;

FIG. 3 is a flowchart of another relay communication method in an embodiment of the present invention;

FIG. 4 is a flowchart of another relay communication method in an embodiment of the present invention;

FIG. 5 is a flowchart of another relay communication method in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a relay communication device in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another relay communication device in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another relay communication device in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another relay communication device in an embodiment of the present invention.

Detailed ways

As described in the background technology above, in the prior art, when the communication link between the relay device and the serving base station fails, the relay device performs handover between base stations, or the relay device performs cell selection/reselection , the relay device notifies the remote device it serves, and then triggers the remote device to reselect the relay device or the serving cell.

However, when the relay device cannot continue to implement the relay function, the relay device does not inform the remote device it serves of this information, resulting in the remote device it serves may not be able to access the network.

However, in the embodiment of the present invention, when the relay device determines that it cannot continue to implement the relay function, the relay device may send first indication information to indicate that it cannot continue to implement the relay function. The remote device served by the relay device can receive the first indication information, thereby knowing that the relay device cannot continue to implement the relay function, and then perform cell selection/reselection and relay device selection/reselection according to the state of the user equipment , RRC re-establishment and other operations, and re-select a suitable cell or relay device to re-connect to the network.

In order to make the above objects, features and beneficial effects of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to FIG. 1 , a flow chart of a relay communication method in an embodiment of the present invention is given. Referring to FIG. 2 , it shows an architecture diagram of a communication system in an embodiment of the present invention. The relay communication method provided by the embodiment of the present invention will be described in detail below with reference to FIG. 1 and FIG. 2 .

The relay communication method provided in the embodiment of the present invention may be performed by a chip (such as a baseband chip) with a data processing function in the relay device (Relay UE), or may be performed by a chip including a data processing function in the relay device implemented by the chip module.

In Figure 2, the remote device (Remote UE) communicates with the serving base station (gNB) through a relay device (Relay UE). The control signaling and user plane data corresponding to the remote device are forwarded through the relay device.

The relay device can communicate with the serving base station through a Uu link (link), and the remote device can communicate with the relay device through a PC5 link (link).

In step S101, it is determined that the relay function cannot be continued.

In a specific implementation, it may be determined whether the relay device can continue to implement the relay function by detecting the signal quality of the Uu link between the relay device and the serving base station.

In the embodiment of the present invention, the signal quality of the Uu link between the relay device and the serving base station may be characterized by a reference signal receiving power (Reference Signal Receiving Power, RSRP) parameter. It can be understood that the signal quality of the Uu link between the relay device and the serving base station can also be characterized by other parameters, and is not limited to the above RSRP parameters.

In the embodiment of the present invention, the serving base station may pre-configure a Uu link signal quality minimum threshold for the relay device and issue it to the relay device. When the relay device detects that the signal quality corresponding to the Uu link is lower than the minimum threshold, it can determine that the signal quality corresponding to the current Uu link is poor, and the relay device may not be able to continue to implement the relay function.

In this embodiment of the present invention, the serving base station may also pre-configure a maximum Uu link signal quality threshold for the relay device and issue it to the relay device. When the relay device detects that the signal quality corresponding to the Uu link is greater than the maximum threshold, it can determine that the signal quality corresponding to the current Uu link is strong, and the distance between the relay device and the serving base station may be relatively short, and the remote The device is far away. At this point, the relay device may not be able to continue to implement the relay function.

In the embodiment of the present invention, the serving base station may also configure a Uu link signal quality maximum threshold and a Uu link signal quality minimum threshold for the relay device at the same time and send them to the relay device. When the relay device detects that the signal quality corresponding to the Uu link between the serving base station is between the maximum threshold and the minimum threshold, it indicates that the relay device can continue to implement the relay function currently. Conversely, when the relay device detects that the signal quality corresponding to the Uu link is greater than the maximum threshold, or detects that the signal quality corresponding to the Uu link is less than the minimum threshold, it can determine that the relay function cannot continue to be implemented currently.

Step S102, sending first indication information.

In a specific implementation, when the relay device determines that it cannot continue to implement the relay function, it may send first indication information, and the first indication information may be used to indicate that the relay device cannot continue to implement the relay function.

The relay device may send the first indication information to the serving remote device, may also send the first indication information to the serving access network device, or may send the first indication information to the serving remote device and the serving access network device at the same time. The first instruction message.

In the embodiment of the present invention, when the relay device sends the first indication information to the serving remote device, it may send the first indication information to the serving remote device through PC5-S signaling, or may send the first indication information to the serving remote device through PC5-RRC signaling. command to send the first indication information to the serving remote device.

The remote devices configured to serve the relay device include the remote device 1 , the remote device 2 and the remote device 3 . When the relay device determines that it cannot continue to undertake the relay function, it may send first indication information to the remote device 1 , the remote device 2 and the remote device 3 .

In the embodiment of the present invention, when the relay device sends the first indication information to the serving remote device through the PC5-S signaling, the information carried by the PC5-S signaling is the first indication information.

When the relay device sends the first indication information to the serving remote device through PC5-RRC signaling, the relay device can send a NotificationMessageSidelink message to the remote device, and the NotificationMessageSidelink message is used to indicate that the relay device cannot implement the relay function.

In the embodiment of the present invention, after the relay device determines that the relay function cannot be continued, it may also broadcast a discovery message (discovery message), and the discovery message may carry the first indication information. After receiving the discovery message, the remote device served by the relay device can obtain the first indication information therefrom, and then know that the relay device currently providing the service cannot continue to implement the relay function.

It is known in the prior art that when the relay device determines that it can currently implement the relay function, it broadcasts a discovery message to inform the remote devices nearby. However, in the embodiment of the present invention, when the relay device determines that it cannot continue to implement the relay function, it may also broadcast a discovery message, so as to notify the remote device it serves.

For example, the remote devices served by the relay device include remote device 1 , remote device 2 and remote device 3 . When the relay device determines that the relay function cannot continue to be implemented currently, it broadcasts a discovery message. After receiving the discovery message, the remote device 1, the remote device 2, and the remote device 3 can determine that the relay device cannot continue to implement the relay function.

In a specific implementation, if the relay device sends the first indication information to the serving remote device, the remote device may execute the relay communication method provided in the following embodiments.

Referring to FIG. 3 , another relay communication method in the embodiment of the present invention is given, which will be described below in conjunction with the embodiment shown in FIG. 1 .

The relay communication method provided in FIG. 3 may be executed by a chip (such as a baseband chip) with a data processing function in the remote device, or may be executed by a chip module including a chip with a data processing function in the remote device.

Step S301, receiving first indication information.

In a specific implementation, the remote device may receive the first indication information sent by the relay device. After receiving the first indication information sent by the relay device, the remote device may perform corresponding operations according to its own user equipment status.

In the embodiment of the present invention, the first indication information may be used to indicate that the relay device providing the service cannot continue to implement the relay function. Specifically, when the relay device generates the first indication information and sends it to the remote device, reference may be made to FIG. 1 and the description of the corresponding content in FIG. 1 , which will not be repeated here.

Step S302, perform corresponding operations according to the state of the own user equipment.

It can be seen in practical applications that the user equipment state corresponding to the remote device may include an RRC connected state, an idle state (IDLE state), an inactivated state (inactivate state), and the like. The operations performed by the remote device may be different in different states of the user equipment.

In the embodiment of the present invention, if the remote device is in the connected state, the remote device can perform the RRC re-establishment process; if the remote device is in the idle state or inactive state, the remote device can perform cell selection or cell reselection operations , and operations such as relay device selection or relay device reselection can also be performed.

For example, the remote device 1 is in the RRC connection state. After receiving the first indication information, the remote device 1 knows that the relay device cannot continue to implement the relay function, and the remote device 1 executes the RRC reestablishment process.

The remote device 2 is in an inactive state. After receiving the first indication information, the remote device 1 learns that the relay device cannot continue to implement the relay function, and the remote device 2 performs a relay device reselection operation.

The remote device 3 is in an idle state. After receiving the first indication information, the remote device 1 learns that the relay device cannot continue to implement the relay function, and the remote device 3 performs a cell reselection operation.

In a specific implementation, the relay device that cannot continue to implement the relay function may also send the first indication information to the access network device that provides the service. For a remote device in a connected state, the relay communication method provided in the following embodiments may be implemented.

Referring to FIG. 4 , another relay communication method in the embodiment of the present invention is shown, which will be described below in conjunction with FIG. 1 and the corresponding description.

The relay communication method provided in FIG. 4 may be executed by a chip (such as a baseband chip) with a data processing function in the remote device, or may be executed by a chip module including a chip with a data processing function in the remote device.

Step S401, receiving measurement configuration information sent by a serving access network device.

In a specific implementation, the relay device may carry the first indication information through RRC-specific signaling, and send the RRC-specific signaling to the access network device providing the service. After receiving the first indication information, the access network device knows that the relay device cannot continue to implement the relay function, and may generate measurement configuration information and send it to the remote device served by the relay device. The measurement configuration information can be used for the measurement process of the remote device.

In the embodiment of the present invention, the measurement configuration information may be used to instruct the remote device which cells/relay devices to measure. Specifically, for the specific content included in the measurement configuration information, reference may be made to the measurement configuration information configured in the existing handover process, and details are not described here.

In the embodiment of the present invention, the access network device may send the measurement configuration information to the relay device, and then the relay device sends the measurement configuration information to the serving remote device.

Step S402, perform a corresponding measurement operation according to the measurement configuration information, and report a measurement result corresponding to the measurement operation.

In a specific implementation, after receiving the measurement configuration information, the remote device can perform a corresponding measurement operation, and report the obtained measurement result to the serving base station. For the measurement operation performed by the remote device according to the measurement configuration information, the operation of reporting the measurement result, etc., reference may be made to the prior art.

In the embodiment of the present invention, the remote device may first report the measurement result to the relay device, and then the relay device reports the measurement result to the serving base station.

After the serving base station receives the measurement result reported by a remote device, the serving base station can trigger the handover process, such as conducting handover negotiations with other relay devices/base stations belonging to other cells. If the other party allows it, the remote device can Switch to the corresponding relay device/cell, and send the switch command to the remote device. The serving base station may send the switching command to the relay device, and then the relay device forwards the switching command to the remote device.

For example, the serving base station receives the measurement result reported by the remote device 1 . After the serving base station determines to handover the remote device 1 to another cell, it sends a handover command to the relay device. The relay device forwards the received switching command to the terminal device 1 . After receiving the handover command, the terminal device 1 performs a cell handover operation.

In the embodiment of the present invention, there is a situation that the serving base station does not receive the measurement result sent by the remote device. For example, the remote device does not receive the measurement configuration information sent by the serving base station, or the remote device fails to report the measurement result.

When the serving base station does not receive the measurement result reported by a certain remote device, the serving base station may issue an RRC reestablishment command to the remote device. After receiving the RRC reestablishment command, the remote device may execute an RRC reestablishment procedure according to the RRC reestablishment command. The specific process of performing the RRC re-establishment operation by the remote device can also refer to the prior art correspondingly, which will not be repeated here.

The serving base station may first issue the RRC reestablishment command to the relay device, and then the relay device forwards the RRC reestablishment command to the corresponding remote device.

For example, the serving base station does not receive the measurement result reported by the remote device 2 . The serving base station sends an RRC reestablishment command to the relay device. The relay device forwards the received RRC reestablishment command to the terminal device 2 . After receiving the RRC reestablishment command, the terminal device 2 executes the RRC reestablishment operation.

In specific implementation, referring to FIG. 5 , another relay communication method in the embodiment of the present invention is given. The following description will be made in conjunction with FIG. 1 and the corresponding description, and FIG. 4 and the corresponding description.

The relay communication method provided in FIG. 5 may be executed by a chip with a data processing function in the access network device, or may be executed by a chip module including a chip with a data processing function in the access network device.

Step S501, receiving first indication information.

Step S502, configuring and delivering measurement configuration information to the remote device.

In a specific implementation, the relay device may carry the first indication information through RRC-specific signaling, and send the RRC-specific signaling to the access network device providing the service. After receiving the first indication information, the access network device knows that the relay device cannot continue to implement the relay function, and may generate measurement configuration information and send it to the remote device served by the relay device. The measurement configuration information can be used in the measurement process of the remote device.

In the embodiment of the present invention, the measurement configuration information may be used to instruct the remote device which cells/relay devices to measure. Specifically, for the specific content included in the measurement configuration information, reference may be made to the measurement configuration information configured in processes such as the existing handover, and details are not described here.

In the embodiment of the present invention, there is a situation that the serving base station does not receive the measurement result sent by the remote device. For example, the remote device does not receive the measurement configuration information delivered by the serving base station, or the remote device fails to report the measurement result.

To sum up, in the embodiment of the present invention, when the relay device determines that it cannot continue to implement the relay function, the relay device may send first indication information to indicate that it cannot continue to implement the relay function. The remote device served by the relay device can receive the first indication information, thereby knowing that the relay device cannot continue to implement the relay function, and then perform cell selection/reselection and relay device selection/reselection according to the state of the user equipment , RRC re-establishment and other operations, and re-select a suitable cell or relay device to re-connect to the network.

Referring to FIG. 6 , the embodiment of the present invention also provides a relay communication device 60, which may be included in a relay device, and the relay communication device 60 may include: a first determining unit 601 and a first sending unit 602 ,in:

The first determining unit 601 is configured to determine that the relay function cannot be continued;

The first sending unit 602 is configured to send first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function.

In a specific implementation, the specific execution process of the first determining unit 601 and the first sending unit 602 can refer to the above step S101 to step S102 correspondingly, which will not be repeated here.

In a specific implementation, the relay communication device 60 may correspond to a chip with a data processing function in a relay device, or correspond to a chip module in a relay device that includes the above-mentioned chip with a data processing function, or correspond to a relay device .

Referring to FIG. 7 , the embodiment of the present invention also provides another relay communication device 70, which may be included in a remote device, and the relay communication device 70 may include a first receiving unit 701 and a first execution Unit 702, where:

The first receiving unit 701 is configured to receive first indication information; the first indication information is used to indicate that the relay device cannot continue to implement the relay function; the relay device provides a relay service for the remote device;

The first executing unit 702 is configured to execute corresponding operations according to the state of the user equipment itself.

In a specific implementation, the specific execution process of the first receiving unit 701 and the first executing unit 702 can refer to the above step S301 to step S302 correspondingly, which will not be repeated here.

In a specific implementation, the relay communication device 70 may correspond to a chip with a data processing function in a remote device, or correspond to a chip module in a remote device that includes the above-mentioned chip with a data processing function, or correspond to a remote device .

Referring to FIG. 8 , another relay communication device 80 in the embodiment of the present invention is shown. The relay communication device 80 may be included in a remote device in a connected state. The relay communication device 80 includes a second receiving unit 801 and the second execution unit 802, wherein:

The second receiving unit 801 is configured to receive the measurement configuration information sent by the serving access network device; the measurement configuration information is sent by the access network device after receiving the first indication information, and the first indication The information is used to indicate that the relay device cannot continue to implement the relay function; the relay device provides a relay service for the remote device;

The second execution unit 802 is configured to execute a corresponding measurement operation according to the measurement configuration information, and report a measurement result corresponding to the measurement operation.

In a specific implementation, the specific execution process of the second receiving unit 801 and the second executing unit 802 can refer to the above step S401 to step S402 correspondingly, which will not be repeated here.

In a specific implementation, the relay communication device 80 may correspond to a chip with a data processing function in the remote device, or correspond to a chip module including the above-mentioned chip with a data processing function in the remote device, or correspond to a remote device .

Referring to FIG. 9 , another relay communication device 90 in the embodiment of the present invention is shown. The relay communication device 90 may be included in an access network device. The relay communication device 90 may include a third receiving unit 901 and The second sending unit 902, wherein:

The third receiving unit 901 is configured to receive first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function;

The second sending unit 902 is configured to configure and deliver measurement configuration information to a remote device; the relay device provides a relay service for the remote device.

In a specific implementation, the specific execution process of the third receiving unit 901 and the second sending unit 902 may refer to the above step S501 to step S502 correspondingly, which will not be repeated here.

In a specific implementation, the relay communication device 90 may correspond to a chip with a data processing function in the access network device, or correspond to a chip module including the above-mentioned chip with a data processing function in the access network device, or correspond to an interface network access equipment.

An embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored thereon, and the computer program is executed by a processor During operation, the steps of the relay communication method provided by any of the above embodiments are executed.

The embodiment of the present invention also provides another relay communication device, including a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes when running the computer program The steps of the relay communication method provided in any one of the above embodiments.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Depending on the application, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by this application.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software units in the processor. The software unit may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor executes the instructions in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.

In the embodiment of the present application, the processor of the above-mentioned device may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC) , Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables the computer to execute some or all of the steps of any method described in the above method embodiments .

An embodiment of the present application also provides a computer program product, the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable the computer to execute any one of the methods described in the above method embodiments. Some or all steps of the method. The computer program product may be a software installation package.

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

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present application.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the above-mentioned integrated units are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory. Several instructions are included to make a computer device (which may be a personal computer, server, or TRP, etc.) execute all or part of the steps of the methods in the various embodiments of the present application. The aforementioned memory includes: various media that can store program codes such as U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk.

The embodiments of the present application have been introduced in detail above, and specific examples have been used in this paper to illustrate the principles and implementation methods of the present application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; meanwhile, for Those skilled in the art will have changes in specific implementation methods and application scopes based on the ideas of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

A relay communication method, characterized in that it is applied in a relay device, the method comprising:

When it is determined that the relay function cannot continue to be implemented, first indication information is sent; the first indication information is used to indicate that the relay device cannot continue to implement the relay function.
The relay communication method according to claim 1, wherein said sending the first indication information comprises:

sending the first indication information to the serving remote device; and/or,

Send the first indication information to the access network device providing the service.
The relay communication method according to claim 2, wherein the sending the first indication information to the serving remote device comprises:

Sending first indication information to the remote device through high-level signaling PC5-S between the relay device and the serving remote device; or,

Sending the first indication information to the remote device through the radio resource control signaling PC5-RRC between the relay device and the serving remote device; or,

Broadcasting a discovery message, where the discovery message carries the first indication information.
The relay communication method according to claim 2, wherein the sending the first indication information to the access network device providing the service comprises:

Carrying the first indication information through radio resource control RRC dedicated signaling, and sending the RRC dedicated signaling to the service-providing access network device.
The relay communication method according to claim 1, wherein said sending the first indication information comprises:

Detecting that the signal quality of the communication link with the serving access network device is greater than a maximum threshold, and sending the first indication information; or,

Detecting that the signal quality of the communication link with the access network device is less than a minimum threshold, and sending the first indication information;

Wherein, the maximum threshold and the minimum threshold are configured by the access network device of the service, and are used to determine whether the device can implement the relay function.
A relay communication method, characterized in that it is applied in a remote device, the method comprising:

receiving first indication information; the first indication information is used to indicate that the relay device cannot continue to implement the relay function; the relay device provides a relay service for the remote device;

Perform corresponding operations according to the status of your own user equipment.
The relay communication method according to claim 6, wherein the performing corresponding operations according to the state of the user equipment itself includes any of the following:

If it is in the connected state, execute the RRC reconstruction process;

If it is idle or inactive, perform relay device selection/reselection;

If it is in an idle state or an inactive state, perform cell selection/reselection.
A relay communication method, characterized in that it is applied to a remote device in a connected state, the method comprising:

The measurement configuration information sent by the access network device receiving the service; the measurement configuration information is sent by the access network device after receiving the first indication information, and the first indication information is used to indicate that the relay device cannot Continue to realize the relay function; the relay device provides the relay service for the remote device;

Execute a corresponding measurement operation according to the measurement configuration information, and report a measurement result corresponding to the measurement operation.
The relay communication method according to claim 8, further comprising: receiving a handover command and executing a cell handover process after reporting the measurement result corresponding to the measurement operation.
The relay communication method according to claim 9, wherein the receiving the switching command by the remote device comprises: receiving the switching command forwarded by the relay device, and the switching command is sent by the access network device sent.
The relay communication method according to claim 8, further comprising: if the remote device does not report the measurement result, receiving an RRC reestablishment command issued by a serving base station.
The relay communication method according to claim 11, wherein the receiving the RRC reestablishment command issued by the serving base station comprises: receiving the RRC reestablishment command forwarded by the relay device, the RRC reestablishment The command is sent by the access network device.
A relay communication method, characterized in that it is applied in an access network device, and the method includes:

receiving first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function;

Configuring and delivering measurement configuration information to the remote device; the relay device provides a relay service for the remote device.
The relay communication method according to claim 13, further comprising: receiving the measurement result reported by the remote device after the access network device configures and delivers the measurement configuration information to the remote device.
The relay communication method according to claim 14, further comprising: sending a switching command to the remote device after receiving the measurement result reported by the remote device.
The relay communication method according to claim 15, wherein the sending the switching command to the remote device comprises: sending the switching command to the relay device, and the relay device transfers the switching command to the relay device. sending the switching command to the remote device.
The relay communication method according to claim 13, further comprising: sending an RRC reestablishment command to the remote device that has not reported the measurement result.
The relay communication method according to claim 17, wherein the sending the RRC reestablishment command to the remote device that has not reported the measurement result comprises: sending the RRC reestablishment command to the relay device, by the The relay device issues the RRC reestablishment command to the remote device that has not reported the measurement result.
A relay communication device is characterized in that it is included in a relay device, and the relay communication device includes:

The first determining unit is configured to determine that the relay function cannot be continued;

The first sending unit is configured to send first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function.
A relay communication device is characterized in that it is included in a remote device, and the relay communication device includes:

The first receiving unit is configured to receive first indication information; the first indication information is used to indicate that the relay device cannot continue to implement the relay function; the relay device provides a relay service for the remote device;

The first executing unit is configured to execute corresponding operations according to the state of the user equipment itself.
A relay communication device is characterized in that it is included in a remote device in a connected state, and the relay communication device includes:

The second receiving unit is configured to receive the measurement configuration information sent by the serving access network device; the measurement configuration information is sent by the access network device after receiving the first indication information, and the first indication information It is used to indicate that the relay device cannot continue to implement the relay function; the relay device provides a relay service for the remote device;

The second execution unit is configured to execute a corresponding measurement operation according to the measurement configuration information, and report a measurement result corresponding to the measurement operation.
A relay communication device, characterized in that it is included in an access network device, and the relay communication device includes:

A third receiving unit, configured to receive first indication information, where the first indication information is used to indicate that the relay device cannot continue to implement the relay function;

The second sending unit is configured to configure and deliver measurement configuration information to the remote device; the relay device provides a relay service for the remote device.
A computer-readable storage medium, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, wherein the computer program is executed when the processor runs The steps of the relay communication method according to any one of claims 1-17.
A relay communication device, comprising a memory and a processor, the memory stores a computer program that can run on the processor, and it is characterized in that, when the processor runs the computer program, it executes claims 1- 5. The steps of the relay communication method described in any one of claims 6 or 7, or the steps of performing the relay communication method described in any one of claims 8-12 , or execute the steps of the relay communication method described in any one of claims 13-17.