WO2023125186A1

WO2023125186A1 - Communication method and apparatus, device, storage medium, and program

Info

Publication number: WO2023125186A1
Application number: PCT/CN2022/140628
Authority: WO
Inventors: 曹春燕
Original assignee: 展讯半导体(南京)有限公司
Priority date: 2021-12-29
Filing date: 2022-12-21
Publication date: 2023-07-06
Also published as: CN116419260A

Abstract

The present application provides a communication method and apparatus, a device, a storage medium, and a program. A first terminal device receives first indication information, the first indication information being used for instructing the first terminal device to transmit a first measurement report to a network device; and the first terminal device transmits the first measurement report to the network device according to the first indication information, so as to assist the network device in determining whether to perform group handover on the first terminal device and a second terminal device. Therefore, the network device can more accurately make a group handover decision.

Description

Communication method, device, equipment, storage medium and program

This application claims the priority of a Chinese patent application with application number 202111649768.8 and application title "communication method, device, equipment, storage medium and program" filed with the State Intellectual Property Office on December 29, 2021, the entire contents of which are incorporated by reference incorporated in this application.

technical field

The present application relates to the technical field of communication, and in particular to a communication method, device, equipment, storage medium and program.

Background technique

With the development of communication technology, new radio (new radio, NR) supports side link relay (side link relay) communication scenarios. This scenario includes: remote terminal equipment (remote UE), relay terminal equipment (relay UE) and network equipment. The relay terminal device can communicate directly with the network device, and the remote terminal device can communicate with the network device through the relay terminal device.

The above-mentioned side link relay communication scenario also supports a group handover (group handover (HO)) function. Group switching refers to switching between relay terminal equipment and its connected remote terminal equipment.

In the above-mentioned side link relay communication scenario, how the relay terminal device and the remote terminal device report measurement reports to the network device so that the network device can make group handover decisions more accurately is a technical problem that needs to be solved urgently.

Contents of the invention

Embodiments of the present application provide a communication method, device, device, storage medium, and program, so as to enable network devices to make group handover decisions more accurately.

In a first aspect, the present application provides a communication method, including:

The first terminal device receives first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device;

The first terminal device sends the first measurement report to the network device according to the first indication information;

Wherein, the first measurement report is used to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device, and the second terminal device is a relay device of the first terminal device .

In a possible implementation manner, the receiving of the first indication information by the first terminal device includes:

The first terminal device receives the first indication information from the second terminal device; or,

The first terminal device receives the first indication information from the network device.

In a possible implementation manner, the first terminal device sends a first measurement report to the network device according to the first indication information, including:

The first terminal device determines whether the first measurement report exists locally according to the first indication information;

If yes, the first terminal device sends the first measurement report to the network device;

If not, the first terminal device performs link measurement to obtain the first measurement report, and sends the first measurement report to the network device.

In a possible implementation, the method further includes:

The first terminal device receives second indication information sent by the second terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement;

The first terminal device performs link measurement according to the second indication information, and obtains the first measurement report.

In a possible implementation manner, the first measurement report includes link quality between the first terminal device and the second terminal device.

In a second aspect, the present application provides a communication method, including:

The second terminal device generates first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device, and the first measurement report is used to assist the network device in determining whether to performing group switching between the first terminal device and the second terminal device, where the second terminal device is a relay device for the first terminal device;

The second terminal device sends the first indication information to the first terminal device.

In a possible implementation manner, the second terminal device sending the first indication information to the first terminal device includes:

The second terminal device sends the first indication information to the first terminal device before sending the second measurement report to the network device; or,

After sending the second measurement report to the network device, the second terminal device sends the first indication information to the first terminal device;

Wherein, the second measurement report includes the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a possible implementation, the method further includes:

The second terminal device sends second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement.

In a possible implementation manner, the second terminal device sending the second indication information to the first terminal device includes:

When the second terminal device determines that the link quality between the second terminal device and the network device is less than or equal to a first threshold, the second terminal device sends a second indication to the first terminal device information;

Wherein, the first threshold is greater than a second threshold, and the second threshold is used to indicate a trigger condition for the second terminal device to send the second measurement report to the network device.

In a third aspect, the present application provides a communication method, including:

generating a third measurement report by the second terminal device;

The second terminal device sends the third measurement report to a network device;

Wherein, the second terminal device is a relay device of the first terminal device, and the third measurement report includes: the link quality between the first terminal device and the second terminal device, and the first Second, the signal quality of the serving cell where the terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a possible implementation, the method further includes:

The second terminal device receives measurement configuration information from the network device, where the measurement configuration information is used to indicate the link quality between the first terminal device and the second terminal device for the second terminal device Performing measurement, and measuring the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a possible implementation manner, the second terminal device generates a third measurement report, including:

The second terminal device measures the link quality between the first terminal device and the second terminal device according to the measurement configuration information, and measures the signal of the serving cell where the second terminal device is located. The signal quality of the serving cell and/or the signal quality of the neighboring cell of the serving cell is measured to obtain the third measurement report.

In a fourth aspect, the present application provides a communication method, including:

The network device receives the second measurement report sent by the second terminal device;

The network device sends first indication information to the first terminal device according to the second measurement report, where the first indication information is used to instruct the first terminal device to send the first measurement report to the network device, so The second terminal device is a relay device of the first terminal device;

The network device receives the first measurement report sent by the first terminal device.

In a possible implementation manner, the network device sends the first indication information to the first terminal device according to the second measurement report, including:

When the network device determines to switch the second terminal device according to the second measurement report, it sends the first indication information to the first terminal device.

In a possible implementation manner, the first measurement report includes link quality between the first terminal device and the second terminal device;

The second measurement report includes the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a fifth aspect, the present application provides a communication method, including:

The network device receives a third measurement report from a second terminal device, where the second terminal device is a relay device of the first terminal device, and the third measurement report includes a difference between the first terminal device and the second terminal device The link quality between, the signal quality of the serving cell where the second terminal device is located, and/or the signal quality of a neighboring cell of the serving cell;

The network device determines whether to perform group switching on the first terminal device and the second terminal device according to the third measurement report.

In a possible implementation, the method further includes:

The network device sends measurement configuration information to the second terminal device, where the measurement configuration information is used to indicate that the second terminal device has a link quality between the first terminal device and the second terminal device Performing measurement, and measuring the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a sixth aspect, the present application provides a communication device applied to a first terminal device, including:

A receiving module, configured to receive first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device;

A sending module, configured to send the first measurement report to the network device according to the first indication information;

In a seventh aspect, the present application provides a communication device applied to a second terminal device, including:

A processing module, configured to generate first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device, where the first measurement report is used to assist the network device in determining whether to performing group switching between the first terminal device and the second terminal device, where the second terminal device is a relay device for the first terminal device;

A sending module, configured to send the first indication information to the first terminal device.

In an eighth aspect, the present application provides a communication device applied to a second terminal device, including:

A processing module, configured to generate a third measurement report;

a sending module, configured to send the third measurement report to a network device;

In a ninth aspect, the present application provides a communication device applied to network equipment, including:

a receiving module, configured to receive the second measurement report sent by the second terminal device;

a sending module, configured to send first indication information to the first terminal device according to the second measurement report, where the first indication information is used to instruct the first terminal device to send the first measurement report to the network device, The second terminal device is a relay device of the first terminal device;

The receiving module is further configured to receive the first measurement report sent by the first terminal device.

In a tenth aspect, the present application provides a communication device applied to network equipment, including:

A receiving module, configured to receive a third measurement report from a second terminal device, where the second terminal device is a relay device of the first terminal device, and the third measurement report includes the first terminal device and the second link quality between terminal devices, signal quality of a serving cell where the second terminal device is located, and/or signal quality of a neighboring cell of the serving cell;

A processing module, configured to determine whether to perform group switching between the first terminal device and the second terminal device according to the third measurement report.

In an eleventh aspect, the present application provides a communication device, including: a processor, and a memory communicatively connected to the processor;

the memory stores a computer program;

The processor executes the computer program to realize the method according to any one of the first aspect, or to realize the method according to any one of the second aspect, or to realize any method according to the third aspect The method according to one aspect, or, implement the method according to any one of the fourth aspect, or implement the method according to any one of the fifth aspect.

In a twelfth aspect, the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the method according to any one of the first aspect is implemented , or, realize the method as described in any one of the second aspect, or realize the method as described in any one of the third aspect, or realize the method as described in any one of the fourth aspect, or , implementing the method as described in any one of the fifth aspect.

In a thirteenth aspect, the present application provides a computer program product, including a computer program. When the computer program is executed by a computer, the method according to any one of the first aspect is realized, or, any method according to the second aspect is realized. The method described in the item, or, realize the method as described in any one of the third aspect, or realize the method as described in any one of the fourth aspect, or realize the method as described in any one of the fifth aspect described method.

In the communication method, device, device, storage medium and program provided in the present application, the first terminal device receives first indication information, and the first indication information is used to instruct the first terminal device to send a first measurement report to the network device; the first The terminal device sends the first measurement report to the network device according to the first indication information, so as to assist the network device in determining whether to perform group handover between the first terminal device and the second terminal device, so that the network device can make group handover decisions more accurately.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

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

FIG. 2 is an interactive schematic diagram of a group switching process provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a communication method provided in an embodiment of the present application;

FIG. 4 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 5 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 6 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The technical solutions provided by the embodiments of the present application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long term evolution, LTE-A) system, new radio (new radio , NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum ) system, Non-Terrestrial Networks (NTN) system, universal mobile telecommunications system (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi) , next-generation communication (5th-generation, 5G) system or other communication systems, etc.

In this embodiment of the present application, a terminal device generally has a wireless transceiver function, and may also be called a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, Mobile equipment, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device can be a station (staion, ST) in the WLAN, and can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital processing (personal digital assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolving public land mobile network (public land mobile network, PLMN) network, etc. Terminal equipment can be mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (virtual reality, referred to as VR) terminal equipment, augmented reality (augmented reality, referred to as AR) terminal equipment, industrial control ( Wireless terminals in industrial control, vehicle-mounted terminal equipment, wireless terminals in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety Wireless terminal devices in (transportation safety), wireless terminal devices in smart cities, wireless terminal devices in smart homes, wearable terminal devices, etc. The terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. Terminal equipment can also be fixed or mobile.

Exemplarily, in this embodiment of the application, the terminal device may be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be a node in a radio access network, may also be called a base station, and may also be called a radio access network (radio access network, RAN) node (or device). Network devices may be used to convert received over-the-air frames to and from Internet Protocol (IP) packets, acting as routers between the terminal device and the rest of the access network, which may include the IP network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (longterm evolution, LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), or It may include the next generation node B (next generation node B, gNB) in the fifth generation mobile communication technology (5thgeneration, 5G) new radio (new radio, NR) system, or may also include the transmission reception point (transmission reception point, TRP) ), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU), or WiFi access point (access point, AP), etc., or can also include cloud access Centralized unit (CU) and distributed unit (DU) in the cloud radio access network (CloudRAN) system. The network device may also be a network device in a future evolved PLMN network, etc.

For ease of understanding, the architecture of the communication system involved in the embodiment of the present application will be described first with reference to FIG. 1 .

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application. As shown in FIG. 1 , the communication system includes: a network device and at least one terminal device (eg, terminal device A, terminal device B, and terminal device C in FIG. 1 ). It should be understood that the number of network devices and device terminals in the communication system may be one or more, which is not limited in this embodiment of the present application.

In the above communication system architecture, the terminal device A is within the coverage of the network device and has a relay function. Terminal device A supports providing relay services for other nearby terminal devices. The communication quality between terminal device B and the network device is poor, and terminal device C is not within the coverage of the network device. The terminal device B and/or the terminal device C can implement the connection (communication) with the network device through the relay function of the terminal device A. In the embodiment of this application, a terminal device similar to terminal device A that is located within the coverage of the network device and provides relay services can be called a relay terminal device (relay UE), and similar terminal device B and terminal device C Such a terminal device receiving relay services is called a remote terminal device (remote UE), or an edge terminal device.

It should be understood that, in the above communication scenario, one relay terminal device may provide a relay service for one or more remote terminal devices.

In addition, the communication system architecture includes two communication interfaces: PC5 interface and Uu interface. Wherein, the PC5 interface refers to a direct connection communication interface between terminal devices. The direct communication link between terminal devices based on the PC5 interface may be called a side link (side link, SL), and is used for direct communication between terminal devices. The Uu interface is the communication interface between the terminal equipment and the network equipment. The communication link between the terminal device and the network device based on the Uu interface generally includes an uplink (uplink, UL) and a downlink (downlink, DL), which are used for communication between the terminal device and the network device.

It should be noted that the system architecture and application scenarios described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. It can be seen that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar problems.

In the embodiment of the present application, the communication system shown in FIG. 1 also supports a group switching function. Group switching refers to switching between relay terminal equipment and its connected remote terminal equipment. For example, terminal device A, terminal device B, and terminal device C in FIG. 1 perform handover together.

Specifically, the network device decides whether to perform group handover based on the following method: the network device receives the measurement report reported by the relay terminal device, and determines whether the relay terminal device needs to perform handover according to the measurement report reported by the relay terminal device. If it is determined that the relay terminal device needs to be handed over, the network device determines whether to perform group switching between the relay terminal device and the remote terminal device according to the signal quality of the PC5 link between the relay terminal device and its connected remote terminal device. If the signal quality of the PC5 link between the relay terminal device and its connected remote terminal device is good, it is determined to perform group handover. If the signal quality of the PC5 link between the relay terminal device and its connected remote terminal device is not good, it is determined not to perform group switching.

The group switching process will be described in detail below in conjunction with FIG. 2 . FIG. 2 is an interactive schematic diagram of a group switching process provided by an embodiment of the present application. In this embodiment, it is assumed that terminal device A is connected to network device 1, and terminal device B and terminal device C are connected to network device 1 through terminal device A. That is to say, terminal device B and terminal device C serve as remote terminal devices, and terminal device A serves as a relay terminal device for terminal device B and terminal device C.

As shown in Figure 2, the group switching process may include:

(1) Terminal device A sends a measurement report (measurements) to network device 1 .

In this embodiment, the network device 1 may send measurement configuration information to the terminal device A in advance, and inform the terminal device A of which cells signal quality needs to be measured through the measurement configuration information. In addition, the network device 1 may also inform the terminal device A of the reporting manner of the measurement report through the measurement configuration information, for example, periodic reporting or event-triggered reporting. When the event is triggered to be reported, a specific trigger condition may also be indicated in the measurement configuration information.

In this way, the terminal device A can measure the signal quality of the corresponding cell according to the above measurement configuration information, and send a measurement report to the network device 1 . Exemplarily, the measurement report reported by the terminal device A to the network device 1 may include: the signal quality of the serving cell where the terminal device A is located, and/or the signal quality of a neighboring cell of the serving cell.

After network device 1 receives the measurement report reported by terminal device A, it can determine whether terminal device A needs to be handed over according to the measurement report. If terminal device A needs to be handed over, an appropriate network device may be selected as a target network device (for example, network device 2) according to the measurement report.

When it is determined that terminal device A needs to be handed over, network device 1 needs to further decide whether to handover terminal device B, terminal device C, and terminal device A together to the target network device, and the decision is based on terminal device B, terminal The signal quality of the PC5 link between device C and terminal device A. If the signal quality of the PC5 link is good, for example, the signal quality of the PC5 link is greater than the threshold configured by the network device, it is determined to perform group handover. If the signal quality of the PC5 link is not good, for example, the signal quality of the PC5 link is less than or equal to the threshold configured by the network device, it is determined not to perform group handover.

In the embodiment of the present application, the terminal device B and the terminal device C may also report a measurement report to the network device 1 . Specifically, network device 1 may send measurement configuration information to terminal device B and terminal device C in advance, and inform terminal device B and terminal device C of which PC5 link signal quality or Uu link signal quality they need to measure through the measurement configuration information. Take measurements. In addition, the network device 1 may also inform the terminal device B and the terminal device C of the reporting manner of the measurement report through the measurement configuration information, for example, periodic reporting or event-triggered reporting. When the event is triggered to be reported, a specific trigger condition may also be indicated in the measurement configuration information.

In this way, terminal device B and terminal device C can measure the signal quality of the corresponding PC5 link according to the above measurement configuration information, and send a measurement report to the network device 1 .

Exemplarily, the measurement report reported by the terminal device B to the network device 1 may include: the signal quality of the PC5 link between the terminal device B and the terminal device A. Optionally, the measurement report reported by terminal device B to network device 1 may also include one or more of the following: signal quality between terminal device B and one or more other nearby relay terminal devices, terminal device Signal quality between B and one or more neighboring cells.

Exemplarily, the measurement report reported by the terminal device C to the network device 1 may include: the signal quality of the PC5 link between the terminal device C and the terminal device A. Optionally, the measurement report reported by terminal device C to network device 1 may also include one or more of the following: signal quality between terminal device C and one or more other nearby relay terminal devices, terminal device The signal quality between C and one or more neighboring cells.

In this way, when network device 1 determines that terminal device A needs to be handed over, it can further decide whether to combine terminal device B, terminal device C, and terminal device A together according to the measurement reports reported by terminal device B and terminal device C. switch.

(2) Network device 1 sends a group handover request (Group HO Request for all remotes served by relay) to network device 2.

When the network device 1 determines to perform group switching, assuming that the target network device determined by the network device 1 is the network device 2 , the network device 1 sends a group switching request to the network device 2 . The group handover request includes: handover requests of terminal equipment A, terminal equipment B, and terminal equipment C.

(3) Network device 2 sends group switching confirmation to network device 1 (Group HO Accept with multiple configurations)

The network device 2 performs handover and access control on the terminal equipment A, the terminal equipment B, and the terminal equipment C according to the group handover request. If the network device 2 allows the access of the terminal device A, the terminal device B, and the terminal device C, the network device 2 sends a group switching confirmation to the network device 1 to indicate acceptance of the group switching request. Wherein, the group handover confirmation may include: handover configuration information of terminal equipment A, terminal equipment B, and terminal equipment C.

(4) The network device 1 sends a group switching command (Group HO command with multiple configurations) to the terminal device A.

After network device 1 receives the group switching confirmation from network device 2, it sends a group switching command to terminal device A. The group switching command includes: switching configuration information of terminal equipment A, terminal equipment B, and terminal equipment C.

(5) After receiving the group switching command from the network device 1, the terminal device A saves its own switching configuration information and prepares for the switching process. In addition, terminal device A sends a switching command to terminal device B through RRC reconfiguration signaling, and the switching command includes switching configuration information of terminal device B; and terminal device A sends a switching command to terminal device C through RRC reconfiguration signaling, and the switching command includes the handover configuration information of terminal device C. The terminal device B and the terminal device C perform reconfiguration according to the handover configuration information, and send an RRC reconfiguration completion signaling to the terminal device A after the reconfiguration is completed.

After terminal device A receives the RRC reconfiguration completion signaling sent by terminal device B and terminal device C, it performs handover according to its own handover configuration information.

(6) After the terminal device A completes the handover, it sends a Group HO complete with group response to the network device 2.

It can be seen from the above group switching process that network device 1 needs to determine whether to switch terminal device A based on the measurement report reported by terminal device A; to determine whether to perform group handover with terminal equipment B, terminal equipment C, and terminal equipment A. That is to say, the network device needs to consider the measurement reports reported by the terminal device A, the terminal device B, and the terminal device C at the same time when making a group handover decision.

However, the process of sending the measurement report to the network device 1 by the terminal device A, the terminal device B, and the terminal device C is independent of each other. When network device 1 determines that terminal device A needs to perform handover according to the measurement report reported by terminal device A, network device 1 may not have received the measurement reports sent by terminal device B and terminal device C, or the distance from terminal device B and terminal device C to the nearest The time when device C reports the measurement report is relatively long. In this case, network device 1 cannot accurately determine the link quality between terminal device A, terminal device B, and terminal device C, and thus cannot accurately decide whether to perform group handover.

In order to solve the above technical problems, the embodiment of the present application improves the reporting method of the measurement report of the relay terminal device (such as terminal device A) or the remote terminal device (terminal device B, terminal device C), so that the relay terminal device ( For example, terminal equipment A) and remote terminal equipment (terminal equipment B, terminal equipment C) report the measurement report to the network equipment at relatively close time. When the network equipment needs to make a group handover decision, it can be accurately known according to the measurement report reported by the remote terminal equipment. The quality of the link between the remote terminal device and the relay terminal device, so that the network device can make group switching decisions more accurately.

Among them, another way of expressing the above "the time when the relay terminal device and the remote terminal device report the measurement report to the network device is relatively close" is: the time when the relay terminal device reports the measurement report to the network device is the same as the time when the remote terminal device reports the measurement report to the network device. The difference between the times when the measurement reports are reported is smaller than a preset threshold.

In the embodiment of the present application, in order to distinguish, the measurement report reported by the relay terminal device (such as terminal device A) to the network device is called the second measurement report, and the remote terminal device (such as terminal device B, terminal device C) The measurement report reported to the network device is called a first measurement report.

The technical solution of the present application will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

In the embodiments shown in FIG. 3 to FIG. 6 below, the first terminal device is a remote terminal device, such as terminal device B and terminal device C in FIG. 1 . The second terminal device is a relay terminal device, such as terminal device A in FIG. 1 . That is, the second terminal device is a relay device of the first terminal device.

FIG. 3 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 3, the method of this embodiment includes:

S301: The second terminal device sends first indication information to the first terminal device. The first indication information is used to instruct the first terminal device to send the first measurement report to the network device.

S302: The second terminal device sends a second measurement report to the network device.

Correspondingly, the first terminal device receives the first indication information from the second terminal device. The network device receives a second measurement report from the second terminal device.

In this embodiment, the second terminal device may generate first indication information, and send the first indication information to the first terminal device, to instruct the first terminal device to send the first measurement report to the network device. Specifically, the second terminal device may send the first indication information to the first terminal device when determining that it needs to send the second measurement report to the network device.

In an example, assuming that the second measurement report is reported periodically, the second terminal device may send the first indication information to the first terminal device when the reporting period of the second measurement report is reached.

In another example, assuming that the second measurement report adopts an event-triggered reporting manner, the second terminal device may send the first indication information to the first terminal device when detecting that a trigger event of the second measurement report is satisfied. For example, when it is detected that the link quality between the second terminal device and the network device is less than or equal to the second threshold, the first indication information is sent to the first terminal device.

In a possible implementation manner, the second terminal device may send the second measurement report to the network device at the first moment, and send the first indication information to the first terminal device at the second moment, and between the first moment and the second moment The difference between is less than the preset threshold.

Optionally, the second terminal device may send the first indication information to the first terminal device while sending the second measurement report to the network device. That is to say, S301 and S302 can be executed simultaneously.

Optionally, the second terminal device may also send the first indication information to the first terminal device after sending the second measurement report to the network device. That is, S301 is executed after S302.

Optionally, the second terminal device may send the first indication information to the first terminal device before sending the second measurement report to the network device. That is to say, referring to FIG. 1, S301 is executed before S302.

It can be understood that, considering that it takes a certain period of time for the second terminal device to transmit the first indication information to the first terminal device, before the second terminal device sends the second measurement report to the network device, the first terminal device sends The first indication information can make the time when the network device receives the first measurement report and the second measurement report closer.

In a possible implementation manner, when the second terminal device determines that it needs to send the second measurement report to the network device, the second terminal device may first determine whether the second measurement report will trigger handover according to the second measurement report. If it is determined that the second measurement report will trigger handover, then send the first indication information to the first terminal device. If it is determined that the second measurement report will not trigger handover, there is no need to send the first indication information to the first terminal device. This saves signaling overhead.

For example, the switching based on the A3/A5 event is taken as an example for description. Assume that the A3 event is: the signal quality of the adjacent cell is higher than the absolute threshold 1 than the signal quality of the serving cell, and the A3 event handover is triggered; the A5 event is: the signal quality of the serving cell is lower than the absolute threshold 2, and the service quality of the adjacent cell is higher than If the absolute threshold is 3, the A5 event switching will be triggered. In this way, the second terminal device can determine whether the A3/A5 event switching will be triggered according to the second measurement report. The second terminal device sends the first indication information to the first terminal device only when it is determined that the handover will be triggered.

In this embodiment, the second measurement report is used to assist the network device in determining whether to switch the second terminal device, and when determining to switch the second terminal device, to determine which target network device the second terminal device is switched to.

Exemplarily, the second measurement report includes: the signal quality of the serving cell where the second terminal device is located, and/or, the signal quality of a neighboring cell of the serving cell.

S303: The first terminal device sends a first measurement report to the network device according to the first indication information.

Correspondingly, the network device receives the first measurement report from the first terminal device.

In a possible implementation manner, after receiving the first indication information, the first terminal device judges whether there is a first measurement report locally according to the first indication information; if so, the first terminal device sends the first measurement report to the network device; If not, the first terminal device performs link measurement, obtains a first measurement report, and sends the first measurement report to the network device.

It should be understood that the aforementioned link measurement performed by the first terminal device means that the first terminal device measures the signal quality of the PC5 link between the first terminal device and the second terminal device.

In another possible implementation manner, the first indication information may include a target reporting time, so that the first terminal device sends the first measurement report to the network device at the target reporting time. Exemplarily, when the second terminal device determines that it needs to send the second measurement report to the network device, and the second measurement report will trigger handover, it estimates and obtains the first At what time does the terminal device need to report the first measurement report to the network device, so that the time when the network device receives the first measurement report and the second measurement report is relatively similar. Furthermore, the estimated time is taken as the target reporting time. The second terminal device sends the target reporting time to the first terminal device in the first indication information, so as to instruct the first terminal device to report the first measurement report to the network device at the target reporting time.

In this embodiment of the present application, the first measurement report is used to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device.

Exemplarily, the first measurement report may include: link quality between the first terminal device and the second terminal device. For example, the signal quality of the PC5 link between the first terminal device and the second terminal device, such as Reference Signal Received Power (Reference Signal Receiving Power, RSRP), Reference Signal Received Quality (Reference Signal Receiving Quality, RSRQ), signal and Interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), etc. In this way, after the network device receives the first measurement report, it can know the link quality between the first terminal device and the second terminal device according to the first measurement report, so as to decide whether to perform Group switching. For example, when the link quality between the first terminal device and the second terminal device is higher than or equal to a preset threshold, it is determined to perform group switching between the first terminal device and the second terminal device; When the link quality between the terminal devices is lower than the preset threshold, it is determined not to perform group switching between the first terminal device and the second terminal device.

Optionally, the first measurement report may further include: signal quality between the first terminal device and one or more nearby relay terminal devices, and signal quality between the first terminal device and one or more neighboring cells.

It should be understood that, in this embodiment, the manner in which the first terminal device sends the first measurement report to the network device is: the first terminal device sends the first measurement report to the second terminal device, and the second terminal device forwards the first measurement report to the network device. 1. Measurement report.

S304: The network device determines whether to perform group switching on the first terminal device and the second terminal device according to the first measurement report and the second measurement report.

In this embodiment, the network device can receive the first measurement report sent by the first terminal device, and can also receive the second measurement report sent by the second terminal device, and the receiving time of the first measurement report is the same as that of the second measurement report The difference between the receiving instants is smaller than a preset threshold. The network device may determine whether to perform group switching on the first terminal device and the second terminal device according to the first measurement report and the second measurement report.

Specifically, the network device may determine whether to perform handover to the second terminal device according to the second measurement report. When it is determined that the second terminal device needs to be switched, the network device determines whether to perform group switching between the first terminal device and the second terminal device according to the first measurement report. Exemplarily, if the first measurement report indicates that the link quality between the first terminal device and the second terminal device is greater than or equal to a preset threshold, it is determined to perform group switching on the first terminal device and the second terminal device. If the first measurement report indicates that the link quality between the first terminal device and the second terminal device is less than the preset threshold, it is determined not to perform group switching between the first terminal device and the second terminal device.

In the communication method provided in this embodiment, when the second terminal device determines that it needs to send the second measurement report to the network device, it sends the first indication information to the first terminal device, so that the first terminal device sends the first indication information to the network according to the first indication information. The device sends a first measurement report. In this way, the time when the first terminal device reports the first measurement report to the network device is relatively close to the time when the second terminal device reports the second measurement report to the network device. The report obtains relatively accurate link quality between the first terminal device and the second terminal device, so that group handover decisions can be made more accurately.

In the embodiment shown in FIG. 3 above, when the first terminal device receives the first indication information, it is possible that the first terminal device does not have the first measurement report locally. In this case, the first terminal device needs to perform link measurement first to obtain the first measurement report, and then send the first measurement report to the network device. In this case, since the first terminal device also needs a certain period of time to perform link measurement, the time when the first terminal device sends the first measurement report to the network device will be different from the time when the second terminal device sends the second measurement report to the network device. The time between moments is still long.

In order to solve the above technical problems, in the communication method provided by the present application, before the second terminal device sends the first indication information to the first terminal device, it can also send the second indication information to the first terminal device to instruct the first terminal device The device performs link measurements. In this way, it is equivalent to that the first terminal device has performed link measurement in advance, and when the first terminal device receives the first indication information, it can immediately send the first measurement report to the network device. The details will be described below in conjunction with FIG. 4 .

FIG. 4 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 4, the method of this embodiment includes:

S401: The second terminal device sends second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement.

Correspondingly, the first terminal device receives second indication information from the second terminal device.

In this embodiment, the second terminal device may send the second indication information to the first terminal device before sending the second measurement report to the network device, so as to instruct the first terminal device to perform link measurement in advance.

In an example, assuming that the second measurement report adopts a periodic reporting method, if the second terminal device determines that it needs to report the second measurement report to the network device at time T according to the reporting period of the measurement report, the second terminal device can report the second measurement report at time T-k Send the second indication information to the first terminal device.

That is to say, when the moment when the second terminal device sends the second measurement report to the network device is about to arrive, the second terminal device sends the second indication information to the first terminal device.

In another example, assume that the second measurement report adopts an event-triggered reporting method, and assume that the second threshold is the trigger condition for the second terminal device to send the second measurement report to the network device, that is, the second terminal device needs to When the quality of the link with the network device is less than or equal to the second threshold, a measurement report is reported to the network device. In this case, a new event may be defined, and when the link quality between the second terminal device and the network device is less than or equal to the first threshold, the second terminal device sends the second indication information to the first terminal device. The first threshold is greater than the second threshold.

That is to say, when the second terminal device detects that the link quality has deteriorated and is about to reach the reporting condition of the second measurement report, it sends the second indication information to the first terminal device, so that the first terminal device performs link measurement in advance .

S402: The first terminal device performs link measurement according to the second indication information, and obtains a first measurement report.

Specifically, after receiving the second indication information, the first terminal device measures the signal quality of the PC5 link between the first terminal device and the second terminal device to obtain the first measurement report.

It should be understood that after the first terminal device measures and obtains the first measurement report, it may first store the first measurement report locally. When the reporting condition of the first measurement report is subsequently met, the first measurement report is sent to the network device, or, when the first indication information sent by the second terminal device is received, the first measurement report is sent to the network device.

S403: The second terminal device sends first indication information to the first terminal device.

S404: The second terminal device sends a second measurement report to the network device.

Correspondingly, the first terminal device receives the first indication information from the second terminal device, and the network device receives the second measurement report from the second terminal device.

S405: The first terminal device sends a first measurement report to the network device according to the first indication information.

S406: The network device determines whether to perform group switching on the first terminal device and the second terminal device according to the first measurement report and the second measurement report.

It should be understood that, the specific implementation manners of S403 to S406 in this embodiment are similar to those of S301 to S304 in FIG. 3 , and will not be repeated here.

In this embodiment, before sending the first indication information to the first terminal device, the second terminal device first sends the second indication information to the first terminal device, which is used to instruct the first terminal device to perform link measurement to obtain the first measurement In this way, when the first terminal device receives the first indication information, since the first terminal device has completed the link measurement in advance, the first terminal device can immediately send the first measurement report to the network device, thereby ensuring that the first terminal device The time when a terminal device reports the first measurement report to the network device is relatively close to the time when the second terminal device reports the second measurement report to the network device. In this way, when the network device needs to make a group handover decision, it can obtain a relatively accurate link quality between the first terminal device and the second terminal device according to the first measurement report, thereby making a more accurate group handover decision.

FIG. 5 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 5, the method of this embodiment includes:

S501: The second terminal device sends a second measurement report to the network device.

Correspondingly, the network device receives the second measurement report from the second terminal device.

In this embodiment, the second terminal device may send the second measurement report to the network device in a periodic manner or in an event-triggered manner according to the measurement configuration information previously configured by the network device.

S502: The network device sends the first indication information to the first terminal device according to the second measurement report. The first indication information is used to instruct the first terminal device to send the first measurement report to the network device.

In a possible implementation manner, after receiving the second measurement report, the network device sends the first indication information to the first terminal device. That is to say, no matter whether the second terminal device needs to be handed over, the first indication information is sent to the first terminal device to instruct the first terminal device to send the first measurement report to the network device. In this way, the network device can receive the first measurement report from the first terminal device in time, so as to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device.

In another possible implementation manner, after receiving the second measurement report, the network device first determines whether the second terminal device needs to be handed over according to the second measurement report. When it is determined that the second terminal device needs to be switched, the first indication information is sent to the first terminal device. When it is determined that the second terminal device does not need to be handed over, there is no need to send the first indication information to the first terminal device. In this way, signaling interaction can be saved.

In yet another possible implementation manner, after receiving the second measurement report, the network device first determines whether the second terminal device needs to be handed over according to the second measurement report. When it is determined that the second terminal device needs to be handed over, it is further determined whether the network device has received the first measurement report sent by the first terminal device within a preset time period before the current time. If not received, the first indication information is sent to the first terminal device. If received, then according to the received first measurement report, determine whether to perform group switching on the first terminal device and the second terminal device. Wherein, the aforementioned preset duration is less than or equal to a preset threshold.

S503: The first terminal device sends a first measurement report to the network device according to the first indication information.

S504: The network device determines whether to perform group switching on the first terminal device and the second terminal device according to the first measurement report and the second measurement report.

It should be understood that for the implementation manners of S503 and S504 in this embodiment, reference may be made to the detailed description of S303 and S304 in FIG. 2 , and details are not repeated here.

In this embodiment, the network device may send the first indication information to the first terminal device according to the second measurement report received from the second terminal device, so that the first terminal device sends the first measurement report to the network device. In this way, the time when the network device receives the first measurement report is relatively close to the time when the second measurement report is received, and the network device can know the more accurate first terminal device and the second measurement report according to the first measurement report when making a group handover decision. The link quality between the two terminal devices, so that group handover decisions can be made more accurately.

FIG. 6 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 6, the method of this embodiment includes:

S601: The second terminal device sends a third measurement report to the network device, where the third measurement report includes: the link quality between the first terminal device and the second terminal device, and the signal quality and the signal quality of the serving cell where the second terminal device is located. /or the signal quality of neighboring cells of the serving cell.

Correspondingly, the network device receives the third measurement report from the second terminal device.

The difference between this embodiment and the foregoing embodiments shown in FIGS. 3 to 5 is that, in the measurement report sent by the second terminal device to the network device, except for In addition to the signal quality of the serving cell where the terminal device is located and/or the signal quality of the neighboring cell of the serving cell), it also includes the content of the first measurement report in the foregoing embodiment (that is, the first measurement report between the first terminal device and the second terminal device link quality). In order to distinguish it from the second measurement report in the foregoing embodiments, the measurement report sent by the second terminal device to the network device is called a third measurement report in this embodiment.

It should be understood that the third measurement report may be reported in a periodic manner or in an event-triggered manner, which is not limited in this embodiment.

In this embodiment, before S601, it may also include:

(1) The network device sends measurement configuration information to the second terminal device, the measurement configuration information is used to instruct the second terminal device to measure the link quality between the first terminal device and the second terminal device, and the second terminal device Measure the signal quality of the serving cell where the device is located and/or the signal quality of neighboring cells of the serving cell.

It should be understood that in the foregoing embodiments shown in FIG. 3 to FIG. 5 , the network device will also send measurement configuration information to the second terminal device, where the measurement configuration information is used to indicate the signal quality and /or measure the signal quality of neighboring cells of the serving cell. However, in this embodiment, the measurement configuration information not only instructs the second terminal device to measure the signal quality of the serving cell where it is located and/or the signal quality of the neighboring cells of the serving cell, but also instructs the second terminal device to measure the signal quality of the first The link quality between the terminal device and the second terminal device is measured. For example, the measurement configuration information may include the identifier of the first terminal device to which the second terminal device is connected.

(2) After receiving the measurement configuration information, the second terminal device measures the link quality between the first terminal device and the second terminal device according to the measurement configuration information, and measures the signal of the serving cell where the second terminal device is located. The signal quality of the serving cell and/or the signal quality of the neighboring cell of the serving cell is measured to obtain a third measurement report.

Wherein, the above-mentioned "measuring the link quality between the first terminal device and the second terminal device" refers to measuring the signal quality of the PC5 link between the first terminal device and the second terminal device.

It should be understood that, in practical applications, the second terminal device may provide a relay service for multiple first terminal devices. In this case, the measurement configuration information sent by the network device to the second terminal device may include identifiers of multiple first terminal devices, so that the second terminal device measures the signal quality of the PC5 link corresponding to each first terminal device .

In a possible implementation manner, the second terminal device may first measure the signal quality of the serving cell where it is located and/or the signal quality of a neighboring cell of the serving cell according to the measurement configuration information, to obtain a first measurement result, and the first The measurement result includes: the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell. Furthermore, it is determined according to the first measurement result whether to measure the link quality between the first terminal device and the second terminal device.

If the second terminal device determines that the network device will initiate a handover of the second terminal device according to the first measurement result, the second terminal device then measures the link quality between the first terminal device and the second terminal device to obtain the first Two measurement results, the second measurement results include: link quality between the first terminal device and the second terminal device. Furthermore, the second terminal device generates a third measurement report according to the first measurement result and the second measurement result.

If the second terminal device determines that the network device will not initiate the handover of the second terminal device according to the first measurement result, the second terminal device does not need to measure the link quality between the first terminal device and the second terminal device. In this case, the second terminal device may generate a third measurement report according to the first measurement result. It should be understood that the third measurement report at this time is equivalent to the second measurement report in the foregoing embodiment.

That is to say, the second terminal device may initially determine whether the network device will initiate handover of the second terminal device according to the first measurement result. In a case where it is determined that the network device will initiate the handover of the second terminal device, the second terminal device reports a third measurement report to the network device. In a case where it is determined that the network device will not initiate the handover of the second terminal device, the second terminal device reports the second measurement report to the network device.

In this way, the second terminal device does not need to measure the link quality between the first terminal device and the second terminal device every time, reducing the measurement overhead of the second terminal device, and saving resources occupied by the third measurement report.

S602: The network device determines whether to perform group switching between the first terminal device and the second terminal device according to the third measurement report.

In this embodiment, since the third measurement report includes both "the signal quality of the serving cell where the second terminal device is located and/or the signal quality of the neighboring cell of the serving cell", it also includes "the first terminal device and the second link quality between terminal devices", therefore, the network device can first determine the Whether it is necessary to switch over the second terminal device. When it is determined that the second terminal device needs to be handed over, then according to the "link quality between the first terminal device and the second terminal device" included in the third measurement report, determine whether it is necessary to switch between the first terminal device and the second terminal device. The terminal device performs group switching. Exemplarily, if the link quality between the first terminal device and the second terminal device is greater than or equal to a preset threshold, it is determined to perform group switching on the first terminal device and the second terminal device; if the first terminal device and the second terminal device If the link quality between the two terminal devices is less than the preset threshold, it is determined not to perform group switching between the first terminal device and the second terminal device.

In this embodiment, the third measurement report sent by the second terminal device to the network device includes: the link quality between the first terminal device and the second terminal device, and the signal of the serving cell where the second terminal device is located Quality and/or the signal quality of the adjacent cell of the serving cell, so that the network device can simultaneously know the link quality between the first terminal device and the second terminal device, and the signal quality and/or signal quality of the serving cell where the second terminal device is located Signal quality of neighboring cells of the serving cell. In this way, when the network device makes a group handover decision, the group handover decision can be made more accurately based on the relatively accurate link quality between the first terminal device and the second terminal device.

FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device provided in this embodiment may be in the form of software and/or hardware. The communication device provided in this embodiment may be a terminal device, or may be a module, unit, chip, chip module, etc. in the terminal device. The communication device provided in this embodiment may be a network device, or a module, unit, chip, chip module, etc. in the network device.

As shown in FIG. 7 , the communication device 700 provided in this embodiment includes: at least part of a receiving module 701 , a processing module 702 and a sending module 703 . The communication device will be described in detail below with several specific examples in combination with different application scenarios.

In an example, the communication apparatus in this embodiment is applied to a first terminal device. In this case,

A receiving module 701, configured to receive first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device;

A sending module 703, configured to send a first measurement report to the network device according to the first indication information;

Wherein, the first measurement report is used to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device, and the second terminal device is a relay device of the first terminal device.

In a possible implementation manner, the receiving module 701 is specifically configured to:

receiving the first indication information from the second terminal device; or,

Receive first indication information from a network device.

In a possible implementation manner, the processing module 702 is configured to judge whether there is a first measurement report locally according to the first indication information;

The sending module 703 is specifically configured to: if the first measurement report exists locally, send the first measurement report to the network device;

The processing module 702 is further configured to: if the first measurement report does not exist locally, perform link measurement to obtain the first measurement report.

In a possible implementation manner, the receiving module 701 is further configured to: receive second indication information sent by the second terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement;

The processing module 702 is configured to perform link measurement according to the second indication information, and obtain a first measurement report.

The communication device provided in this embodiment can be used to execute the communication method performed by the first terminal device in the above method embodiment shown in FIG. 3 or FIG. 4 or FIG. 5 .

In another example, the communication apparatus provided in this embodiment may be applied to the second terminal device. In this case:

The processing module 702 is configured to generate first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device, and the first measurement report is used to assist the network device in determining whether to perform the first measurement report on the first terminal device and the second The terminal device performs group switching, and the second terminal device is a relay device of the first terminal device;

The sending module 703 is configured to send the first indication information to the first terminal device.

In a possible implementation manner, the sending module 703 is specifically used to:

Before sending the second measurement report to the network device, sending the first indication information to the first terminal device; or,

After sending the second measurement report to the network device, sending the first indication information to the first terminal device;

In a possible implementation manner, the sending module 703 is further configured to: send second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement.

In a possible implementation manner, the sending module 703 is specifically configured to: when the second terminal device determines that the link quality between the second terminal device and the network device is less than or equal to the first threshold, the second terminal device sends the first terminal The device sends second indication information;

Wherein, the first threshold is greater than the second threshold, and the second threshold is used to indicate a trigger condition for the second terminal device to send the second measurement report to the network device.

The communication device provided in this embodiment can be used to implement the communication method performed by the second terminal device in the method embodiment shown in FIG. 3 or FIG. 4 above, and its implementation principle and technical effect are similar, and details are not described here.

In yet another example, the communication apparatus provided in this embodiment may be applied to a second terminal device. In this case:

The processing module 702 is configured to generate a third measurement report;

The sending module 703 is configured to send a third measurement report to the network device;

Wherein, the second terminal device is a relay device of the first terminal device, and the third measurement report includes: the link quality between the first terminal device and the second terminal device, and the signal quality of the serving cell where the second terminal device is located and/or the signal quality of neighboring cells of the serving cell.

In a possible implementation manner, the receiving module 701 is configured to receive measurement configuration information from the network device, where the measurement configuration information is used to instruct the second terminal device to measure the link quality between the first terminal device and the second terminal device, And, measure the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

In a possible implementation manner, the processing module 702 is specifically configured to: measure the link quality between the first terminal device and the second terminal device according to the measurement configuration information, and measure the link quality of the serving cell where the second terminal device is located. The signal quality and/or the signal quality of neighboring cells of the serving cell are measured to obtain a third measurement report.

The communication device in this embodiment can be used to implement the communication method performed by the second terminal device in the embodiment shown in FIG. 6 above, and its implementation principle and technical effect are similar, and details are not described here.

In yet another example, the communication apparatus provided in this embodiment may be applied to network equipment. In this case,

The receiving module 701 is configured to receive the second measurement report sent by the second terminal device;

The sending module 703 is configured to send first indication information to the first terminal device according to the second measurement report, the first indication information is used to instruct the first terminal device to send the first measurement report to the network device, and the second terminal device is the first terminal Device relay device;

The receiving module 701 is also configured to receive the first measurement report sent by the first terminal device.

In a possible implementation manner, the sending module 703 is specifically configured to: send the first indication information to the first terminal device when it is determined to perform handover to the second terminal device according to the second measurement report.

In a possible implementation manner, the first measurement report includes the link quality between the first terminal device and the second terminal device; the second measurement report includes the signal quality and/or the serving cell of the serving cell where the second terminal device is located The signal quality of neighboring cells.

The communication device provided in this embodiment can be used to implement the communication method performed by the network device in the above method embodiment shown in FIG. 5 , and its implementation principle and technical effect are similar, and details are not described here.

The receiving module 701 is configured to receive a third measurement report from the second terminal device, the second terminal device is a relay device of the first terminal device, and the third measurement report includes the link quality between the first terminal device and the second terminal device . The signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell;

The processing module 702 is configured to determine whether to perform group switching between the first terminal device and the second terminal device according to the third measurement report.

In a possible implementation manner, the sending module 703 is configured to send measurement configuration information to the second terminal device, where the measurement configuration information is used to instruct the second terminal device to perform a measurement on the link quality between the first terminal device and the second terminal device. Measuring, and measuring the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.

The communication device provided in this embodiment can be used to execute the communication method performed by the network device in the above method embodiment shown in FIG. 6 , and its implementation principle and technical effect are similar, and details are not described here.

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device may be a terminal device, or a chip, a chip module, etc. in the terminal device. The communication device may also be a network device, or a chip, a chip module, etc. in the network device. As shown in FIG. 8 , the communication device 800 provided in this embodiment includes: a transceiver 801, a memory 802, and a processor 803. The transceiver 801 may include: a transmitter and/or a receiver. The transmitter may also be called a transmitter, a transmitter, a sending port, or a sending interface, and similar descriptions, and the receiver may also be called a receiver, a receiver, a receiving port, or a receiving interface, or similar descriptions. Exemplarily, the transceiver 801 , the memory 802 , and the processor 803 are connected to each other through a bus 804 .

Memory 802 is used to store computer programs;

The processor 803 is configured to execute the computer program stored in the memory, so as to implement the communication method performed by the first terminal device, the second terminal device, or the network device in any of the above method embodiments.

Wherein, the receiver in the transceiver 801 may be used to perform the receiving function of the communication device in the above method embodiment. The transmitter in the transceiver 801 may be used to perform the sending function of the communication device in the foregoing method embodiments. The processor 803 may be configured to execute the processing function of the communication device in the foregoing method embodiments.

The communication device provided in this embodiment can be used to implement the communication method performed by the first terminal device, the second terminal device, or the network device in any of the above method embodiments. The implementation principles and technical effects are similar, and details are not described here.

An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the communication method performed by the first terminal device in any of the above method embodiments is implemented, or To implement the communication method performed by the second terminal device in any of the above method embodiments, or to implement the communication method performed by the network device in any of the above method embodiments, the implementation principles and technical effects are similar, and will not be repeated here.

An embodiment of the present application also provides a chip, including: a memory, a processor, and hardware system resources, a computer program is stored in the memory, and the processor runs the computer program to implement the method executed by the first terminal device in any of the above method embodiments. The communication method, or implement the communication method performed by the second terminal device in any of the above method embodiments, or implement the communication method performed by the network device in any of the above method embodiments, its implementation principle and technical effect are similar, here I won't go into details here.

An embodiment of the present application also provides a computer program product, including a computer program. When the computer program is executed by a computer, the communication method performed by the first terminal device in any of the above method embodiments is implemented, or, the communication method in any of the above method embodiments is implemented. The communication method performed by the second terminal device, or the communication method performed by the network device in any method embodiment above, has similar implementation principles and technical effects, and will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules can be combined or integrated into another A system, or some feature, can 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 modules may be in electrical, mechanical or other forms.

A module described as a separate component may or may not be physically separated, and a component shown as a module may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The above-mentioned integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The above-mentioned software function modules are stored in a storage medium, and include several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute part of the method of each embodiment of the present application step.

It should be understood that the above-mentioned processor can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) wait. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in conjunction with the application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

The storage may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.

The bus can be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable In addition to programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC). Of course, the processor and the storage medium can also exist in the electronic device or the main control device as discrete components.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims

A communication method, characterized in that, comprising:

The first terminal device receives first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device;

The first terminal device sends the first measurement report to the network device according to the first indication information;

Wherein, the first measurement report is used to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device, and the second terminal device is a relay device of the first terminal device .
The method according to claim 1, wherein the receiving of the first indication information by the first terminal device comprises:

The first terminal device receives the first indication information from the second terminal device; or,

The first terminal device receives the first indication information from the network device.
The method according to claim 1 or 2, wherein the first terminal device sends a first measurement report to the network device according to the first indication information, including:

The first terminal device determines whether the first measurement report exists locally according to the first indication information;

If yes, the first terminal device sends the first measurement report to the network device;

If not, the first terminal device performs link measurement to obtain the first measurement report, and sends the first measurement report to the network device.
The method according to claim 1 or 2, characterized in that the method further comprises:

The first terminal device receives second indication information sent by the second terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement;

The first terminal device performs link measurement according to the second indication information, and obtains the first measurement report.
The method according to any one of claims 1 to 4, characterized in that,

The first measurement report includes link quality between the first terminal device and the second terminal device.
A communication method, characterized in that, comprising:

The second terminal device generates first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device, and the first measurement report is used to assist the network device in determining whether to performing group switching between the first terminal device and the second terminal device, where the second terminal device is a relay device for the first terminal device;

The second terminal device sends the first indication information to the first terminal device.
The method according to claim 6, wherein the second terminal device sends the first indication information to the first terminal device, comprising:

The second terminal device sends the first indication information to the first terminal device before sending the second measurement report to the network device; or,

After sending the second measurement report to the network device, the second terminal device sends the first indication information to the first terminal device;

Wherein, the second measurement report includes the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
The method according to claim 6 or 7, characterized in that the method further comprises:

The second terminal device sends second indication information to the first terminal device, where the second indication information is used to instruct the first terminal device to perform link measurement.
The method according to claim 8, wherein the second terminal device sends second indication information to the first terminal device, comprising:

When the second terminal device determines that the link quality between the second terminal device and the network device is less than or equal to a first threshold, the second terminal device sends a second indication to the first terminal device information;

Wherein, the first threshold is greater than a second threshold, and the second threshold is used to indicate a trigger condition for the second terminal device to send the second measurement report to the network device.
The method according to any one of claims 6 to 9, characterized in that,

The first measurement report includes link quality between the first terminal device and the second terminal device.
A communication method, characterized in that, comprising:

generating a third measurement report by the second terminal device;

The second terminal device sends the third measurement report to a network device;

Wherein, the second terminal device is a relay device of the first terminal device, and the third measurement report includes: the link quality between the first terminal device and the second terminal device, and the first Second, the signal quality of the serving cell where the terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
The method according to claim 11, characterized in that the method further comprises:

The second terminal device receives measurement configuration information from the network device, where the measurement configuration information is used to indicate the link quality between the first terminal device and the second terminal device for the second terminal device Performing measurement, and measuring the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
The method according to claim 12, wherein the generating the third measurement report by the second terminal device comprises:

The second terminal device measures the link quality between the first terminal device and the second terminal device according to the measurement configuration information, and measures the signal of the serving cell where the second terminal device is located. The signal quality of the serving cell and/or the signal quality of the neighboring cell of the serving cell is measured to obtain the third measurement report.
A communication method, characterized in that, comprising:

The network device receives the second measurement report sent by the second terminal device;

The network device sends first indication information to the first terminal device according to the second measurement report, where the first indication information is used to instruct the first terminal device to send the first measurement report to the network device, so The second terminal device is a relay device of the first terminal device;

The network device receives the first measurement report sent by the first terminal device.
The method according to claim 14, wherein the network device sends the first indication information to the first terminal device according to the second measurement report, comprising:

The network device sends the first indication information to the first terminal device when determining to switch the second terminal device according to the second measurement report.
The method according to claim 14 or 15, characterized in that,

The first measurement report includes link quality between the first terminal device and the second terminal device;

The second measurement report includes the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
A communication method, characterized in that, comprising:

The network device receives a third measurement report from a second terminal device, where the second terminal device is a relay device of the first terminal device, and the third measurement report includes a difference between the first terminal device and the second terminal device The link quality between, the signal quality of the serving cell where the second terminal device is located, and/or the signal quality of a neighboring cell of the serving cell;

The network device determines whether to perform group switching on the first terminal device and the second terminal device according to the third measurement report.
The method according to claim 17, further comprising:

The network device sends measurement configuration information to the second terminal device, where the measurement configuration information is used to indicate that the second terminal device has a link quality between the first terminal device and the second terminal device Performing measurement, and measuring the signal quality of the serving cell where the second terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
A communication device, characterized in that it is applied to a first terminal device, comprising:

A receiving module, configured to receive first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device;

A sending module, configured to send the first measurement report to the network device according to the first indication information;

Wherein, the first measurement report is used to assist the network device in determining whether to perform group switching between the first terminal device and the second terminal device, and the second terminal device is a relay device of the first terminal device .
A communication device, characterized in that it is applied to a second terminal device, comprising:

A processing module, configured to generate first indication information, where the first indication information is used to instruct the first terminal device to send a first measurement report to the network device, where the first measurement report is used to assist the network device in determining whether to performing group switching between the first terminal device and the second terminal device, where the second terminal device is a relay device for the first terminal device;

A sending module, configured to send the first indication information to the first terminal device.
A communication device, characterized in that it is applied to a second terminal device, comprising:

A processing module, configured to generate a third measurement report;

a sending module, configured to send the third measurement report to a network device;

Wherein, the second terminal device is a relay device of the first terminal device, and the third measurement report includes: the link quality between the first terminal device and the second terminal device, and the first Second, the signal quality of the serving cell where the terminal device is located and/or the signal quality of a neighboring cell of the serving cell.
A communication device, characterized in that it is applied to network equipment, including:

a receiving module, configured to receive the second measurement report sent by the second terminal device;

a sending module, configured to send first indication information to the first terminal device according to the second measurement report, where the first indication information is used to instruct the first terminal device to send the first measurement report to the network device, The second terminal device is a relay device of the first terminal device;

The receiving module is further configured to receive the first measurement report sent by the first terminal device.
A communication device, characterized in that it is applied to network equipment, including:

A receiving module, configured to receive a third measurement report from a second terminal device, where the second terminal device is a relay device of the first terminal device, and the third measurement report includes the first terminal device and the second link quality between terminal devices, signal quality of a serving cell where the second terminal device is located, and/or signal quality of a neighboring cell of the serving cell;

A processing module, configured to determine whether to perform group switching between the first terminal device and the second terminal device according to the third measurement report.
A communication device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

the memory stores a computer program;

The processor executes the computer program to realize the method according to any one of claims 1 to 5, or to realize the method according to any one of claims 6 to 10, or to realize the method according to any one of claims 6 to 10 The method according to any one of claims 11 to 13, or to realize the method according to any one of claims 14 to 16, or to realize the method according to claim 17 or 18.
A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the method according to any one of claims 1 to 5 is implemented, or , realizing the method according to any one of claims 6 to 10, or realizing the method according to any one of claims 11 to 13, or realizing the method according to any one of claims 14 to 16 described method, or, realize the method as described in claim 17 or 18.
A computer program product, characterized in that it includes a computer program, and when the computer program is executed by a computer, the method according to any one of claims 1 to 5 is realized, or, the method according to any one of claims 6 to 10 is realized. The method described in item, or, realize the method described in any one in claim 11 to 13, perhaps, realize the method described in any one in claim 14 to 16, perhaps, realize the method described in any one in claim 17 or the method described in 18.