WO2022147658A1

WO2022147658A1 - Method and apparatus for indicating device state in sidelink, device and storage medium

Info

Publication number: WO2022147658A1
Application number: PCT/CN2021/070337
Authority: WO
Inventors: 冷冰雪; 卢前溪; 杜忠达
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2022-07-14
Also published as: CN116325865A

Abstract

The present application provides a method and an apparatus for indicating a device state in a sidelink, a device and a storage medium. In the solution, upon transmitting, to a second device, a first message requiring a response, a first device is in a DRX active state at a first time; and after receiving the first message requiring a response, the second device transmits first indication information to a network device connected to the second device, indicating that the first device requires a response or is in the DRX active state, so that the network device can configure transmission resources of the sidelink for the second device according to the first indication information, and according to the resources, and the second device may respond to the first message transmitted by the first device. Provided is a method for reporting the state of a transmitting device to a network in a sidelink power saving mechanism, so that a network side can configure resources and reply to a message requiring a response in the sidelink in a timely manner, avoiding the problem of transmission failure.

Description

Indication method, device, device and storage medium for device status in sidelink

technical field

The embodiments of the present application relate to the Internet of Things technology, and in particular, to a method, apparatus, device, and storage medium for indicating device status in a sidelink.

Background technique

Device-to-Device (D2D) communication is a side link transmission technology (Sidelink, abbreviated: SL). Networked systems use device-to-device direct communication, resulting in higher spectral efficiency and lower transmission delay.

Two transmission modes are defined in the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short): Mode A and Mode B. Among them, mode A: the transmission resources of the device are allocated by the base station, and the device transmits data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the device, or can allocate semi-static resources to the device transmitted resources. Mode B: The in-vehicle device selects a resource in the resource pool for data transmission. Generally speaking, a user under network coverage will obtain resources and configurations for sidelink transmission from the base station to which it belongs. In the side link power saving mechanism, the configuration parameters of the power saving mechanism will also be configured by the network to the device within its coverage, and further sent by the device to the counterpart device that communicates with it on the side link. For communication, in the sidelink power saving mechanism, when the receiver (receive, referred to as: Rx) device receives a message that needs to be replied from the transmitter (Transmit, referred to as: Tx) device, it needs to apply to the network to which it belongs. The resource is transmitted to the reply message of the Tx device. At this time, since the network knows the discontinuous reception (Discontinuous Reception, DRX) configuration of the Tx device, it will not issue the configuration authorization in time because the Tx device is considered to be in a dormant state. cause the transfer to fail.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method, apparatus, device, and storage medium for indicating the state of a device in a sidelink, which are used to solve the problem in the prior art that, during sidelink transmission, the network device considers that the Tx device is dormant. The configuration authorization is not issued in a timely manner, resulting in the problem of transmission failure.

In a first aspect, an embodiment of the present application may provide a method for indicating a device status in a sidelink, which is applied to a first device, and the method includes:

Send a first message to the second device through the side link, where the first message is a message requiring a response;

The DRX is in an active state of discontinuous reception at a first time, where the first time is determined according to the first message.

In a second aspect, the embodiments of the present application may provide a method for indicating device status in a sidelink, which is applied to a second device, and the method includes:

receiving a first message sent by the first device through the sidelink, where the first message is a message requiring a response;

Send first indication information to the network device, where the first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a discontinuous reception DRX activation state.

In a third aspect, the embodiments of the present application may provide a method for indicating device status in a sidelink, which is applied to a network device, including:

Receive first indication information sent by the second device, where the first indication information is used to indicate that the first device has sent a message requiring a response to the second device and/or the first device is in a discontinuous reception DRX activation state ;

configuring, for the second device, sidelink transmission resources for responding to the first device;

The sidelink transmission resources are sent to the second device.

In a fourth aspect, an embodiment of the present application may provide an apparatus for indicating device status in a sidelink, including:

a sending module, configured to send a first message to the second device through the side link, where the first message is a message requiring a response;

A processing module, configured to make the device for indicating device status in the sidelink enter the DRX activation state for discontinuous reception at a first time, where the first time is determined according to the type of the first message.

In a fifth aspect, an embodiment of the present application may provide an apparatus for indicating device status in a sidelink, including:

a receiving module, configured to receive a first message sent by the first device through the sidelink, where the first message is a message requiring a response;

A sending module, configured to send first indication information to a network device, where the first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a discontinuous reception DRX activation state.

In a sixth aspect, an embodiment of the present application may provide an apparatus for indicating device status in a sidelink, including:

A receiving module, configured to receive first indication information sent by the second device, where the first indication information is used to indicate that the first device has sent a message that needs a response to the second device and/or the first device is in a non- Continuously receive DRX activation status;

a processing module configured to configure, for the second device, sidelink transmission resources for responding to the first device;

A sending module, configured to send the sidelink transmission resource to the second device.

In a seventh aspect, the embodiments of the present application may provide an electronic device, including:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating a device state in a sidelink according to the first aspect.

In an eighth aspect, the embodiments of the present application may provide an electronic device, including:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating a device state in a sidelink according to the second aspect.

In a ninth aspect, an embodiment of the present application may provide a network device, including:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating a device state in a sidelink according to the third aspect.

In a tenth aspect, embodiments of the present application may provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the first aspect The method for indicating device status in the sidelink.

In an eleventh aspect, embodiments of the present application may provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the second The method for indicating device status in the sidelink described in the aspect.

In a twelfth aspect, embodiments of the present application may provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the third The method for indicating device status in the sidelink described in the aspect.

In a thirteenth aspect, an embodiment of the present application may provide a chip, including: a processing module and a communication interface, where the processing module is configured to perform the device status detection in the sidelink according to any one of the first to third aspects. instruction method.

In a fourteenth aspect, embodiments of the present application may provide a computer program product, including a computer program that, when executed by a processor, implements the device in the side link described in any one of the first aspect to the third aspect. Status indication method.

In the method, device, device, and storage medium for indicating device status in the sidelink provided by the embodiments of the present application, in this solution, after the first device sends the first message that needs to respond to the second device, at the first time Entering the DRX activation state, after receiving the first message requiring a response, the second device sends first indication information to the network device connected to the second device, indicating that the first device needs to respond or is in the DRX activation state, so that the network device The transmission resource of the sidelink can be configured for the second device according to the first indication information, and the second device can respond to the first message sent by the first device according to the resource. Provides a method for reporting the state of the sender's device to the network in the side link power saving mechanism, so that the network side can configure resources and promptly reply to the message that needs to be responded to in the side link, so as to avoid transmission failure. question.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of sidelink transmission of a vehicle-mounted device;

2 is a schematic diagram of resource configuration of sidelink transmission in the prior art;

3 is a schematic flowchart of Embodiment 1 of a method for indicating device status in a sidelink provided by an embodiment of the present application;

4 is a schematic flowchart of Embodiment 2 of a method for indicating device status in a sidelink provided by an embodiment of the present application;

5 is a schematic flowchart of Embodiment 3 of a method for indicating device status in a sidelink provided by an embodiment of the present application;

6 is a schematic diagram of a multicast scenario in a sidelink provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of Embodiment 1 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application;

8 is a schematic structural diagram of Embodiment 2 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application;

9 is a schematic structural diagram of Embodiment 3 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application;

10 is a schematic structural diagram of an electronic device provided in this embodiment;

FIG. 11 is a schematic structural diagram of another electronic device provided in this embodiment;

FIG. 12 is a schematic structural diagram of a network device according to this embodiment.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The terms "first", "second" and the like in the description, claims and the above-mentioned drawings of the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Taking the Internet of Vehicles as an example, the Internet of Vehicles system adopts the device-to-device direct communication method, so it has higher spectral efficiency and lower transmission delay. FIG. 1 is a schematic diagram of sidelink transmission of an in-vehicle device. As shown in FIG. 1 , two transmission modes are defined in 3GPP: mode A and mode B.

Mode A: The transmission resources of the in-vehicle equipment are allocated by the base station, and the in-vehicle equipment transmits data on the sidelink according to the resources allocated by the base station; Semi-statically transmitted resources.

Mode B: The in-vehicle device selects a resource in the resource pool for data transmission.

In 3GPP, D2D is divided into different stages for research.

-ProSe (Proximity based Service): Device-to-device communication in Rel-12/13 is researched for ProSe scenarios, which are mainly aimed at public safety services.

In ProSe, by configuring the position of the resource pool in the time domain, for example, the resource pool is not continuous in the time domain, so that the device can send/receive data discontinuously on the side link, thereby achieving the effect of power saving.

-Vehicle to X (V2X for short): In Rel-14/15, the Internet of Vehicles system has been studied for the scenario of vehicle-to-vehicle communication, which is mainly oriented to the business of relatively high-speed moving vehicle-to-vehicle and vehicle-to-person communication;

In V2X, since the vehicle system has continuous power supply, power efficiency is not the main problem, but the delay of data transmission is the main problem. Therefore, the terminal equipment is required to perform continuous transmission and reception in system design.

-Wearable device (FeD2D): In Rel-14, this scenario is studied for the scenario of wearable device accessing the network through mobile phone, which is mainly oriented to the scenario of low mobile speed and low power access.

Compared with Long Term Evolution (LTE) and new radio (NR) network research, based on LTE V2X, NR V2X is not limited to broadcast scenarios, but is further extended to single V2X applications are studied in these scenarios.

- Similar to LTE V2X, NR V2X also defines the above two resource authorization modes, mode-A/B; further, users may be in a mixed mode, that is, they can use mode-A for resource acquisition, and at the same time You can use mode-B for resource acquisition.

-Different from LTE V2X, in addition to HARQ retransmission without feedback and device-initiated autonomously, NR V2X introduces feedback-based Hybrid Automatic Repeat reQuest (HARQ) retransmission, which is not limited to unicast communication, but also includes multicast communication;

Similar to LTE V2X, in NR V2X, since the vehicle system has continuous power supply, power efficiency is not the main problem, but the delay of data transmission is the main problem, so the system design requires terminal equipment to perform continuous transmission and reception.

FIG. 2 is a schematic diagram of resource configuration of sidelink transmission in the prior art. As shown in FIG. 2 , in the existing sidelink device communication process, a user under network coverage will acquire resources and configurations for sidelink transmission from the base station to which it belongs. In the side link power saving mechanism, the configuration parameters of the power saving mechanism will also be configured by the network to the device within its coverage, and further sent by the device to the counterpart device that communicates with it on the side link. to communicate.

The main differences between the side link power saving technology and the existing uplink and downlink power saving technologies are:

According to the above table, in the sidelink power saving mechanism, when the Rx device receives a message that needs to be replied from the Tx device, it needs to apply for resources from its own network to transmit the reply message to the Tx device. Knowing the DRX configuration of the Tx device may cause the transmission failure because the Tx device is considered to be in a dormant state and the configuration authorization is not issued in time. The reason for this problem is that there is a relatively static configuration (on duration timer) and a relatively dynamic situation (in active timer) in the DRX mechanism, so the device should report the relevant dynamic situation to the network to which it belongs to avoid the above problems. The following issues should be considered when devices report to the network:

- when to trigger the report;

- what signal carries the report;

- What should be included in this report.

In view of the above problems, the present application provides a method for reporting the state of the counterpart device to the network in the sidelink power saving mechanism, so that the network can fully know the DRX state of the counterpart device, so that the Rx device can reply to the message from the Tx device when needed. Timely access to sending resources. The methods of reporting to the network here mainly include the following three forms:

1. Physical layer signaling;

2. Media Access Control Control Element (Media Access Control Control Element, referred to as: MAC CE);

3. Radio Resource Control (Radio Resource Control, RRC for short) signaling.

The method for indicating device status in the sidelink provided by the present application will be described in detail below through specific implementations. The technical solution provided by this application can be applied in any sidelink transmission scenario, involving the first device at the sending end, the second device at the receiving end, and the network device serving the second device. The first device and the second device may be a vehicle, a vehicle-mounted device, a mobile phone, a tablet computer, a wearable device, or other terminal devices capable of device-to-device transmission, which is not limited to this solution.

3 is a schematic flowchart of Embodiment 1 of a method for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 3 , the method for indicating device status in the sidelink includes the following steps:

S101: Send a first message to a second device through a sidelink.

In this step, the first message sent by the first device to the second device is a message requiring a response. The first message can be any of the following information that needs to be responded to:

physical layer information;

MAC CE information, such as CSI report scheduling information, etc.

Radio Link Control (Radio Link Control, RLC for short) layer information, for example: RLC status report scheduling information.

Packet Data Convergence Protocol (PDCP for short) layer information.

RRC signaling, such as: device capability acquisition information, measurement report scheduling information, RRC reconfiguration information, etc.

S102: Be in the DRX active state at the first time.

In this step, the first device enters the DRX activation state after a period of time after sending the first message to the second device, that is, enters the state of waiting to receive a response from the second device. time to enter the DRX active state, the first time is a time period, the first device enters the DRX active state at the beginning of the first time, and maintains the DRX active state during the first time period, the first time is based on the The first message is confirmed.

Specifically, if the first message is physical layer information, the first time is a time slot corresponding to the physical layer information. In sidelink transmission, when the first message is physical layer information, the first device sends the first message to the second device through a sidelink data channel (Pysical Sidelink Share Channel, PSSCH for short), and the second device needs to The response information is transmitted to the first device through a Physical Sidelink Feedback Channel (PSFCH for short). Therefore, the first time refers to the time slot where the PSFCH is located, that is, the time slot corresponding to the PSSCH that transmits the physical layer information.

If the first message is information other than the physical layer information, the first time is the time during the timer timing period configured by the DRX. In the specific implementation of this situation, the first device starts a first timer after sending the first message for a period of time, and the first time is the timing period of the first timer, and the duration of the first timer is It is determined according to the DRX configuration of the first device.

S103: Send the first indication information to the network device.

In this step, the second device receives a first message sent by the first device through the sidelink, where the first message is a message requiring a response. At this time, due to the DRX configuration of the two devices, the network may consider that the first device is in a DRX sleep state, and therefore cannot obtain resources in time to respond to the first device.

In this solution, after receiving the first message sent by the first device that requires a response, the second device may send indication information to the network device, that is, send the first indication information. The first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a DRX activation state.

The network device receives the first indication information sent by the second device, and based on the first indication message, the network device knows that the first device has sent a message requiring a response to the second device and/or the first device is in the DRX active state , that is to say, the first device is waiting for a response from the second device, so the network device can configure the second device with the sidelink transmission resource for the response, so that the second device can send a response to the first device based on the resource. information.

In the specific implementation of this solution, the first indication information can use the physical layer address to distinguish the first device configured with DRX that performs sidelink communication with the second device, that is to say, the first indication information includes physical layer addresses. Layer address, indicating the first device in the DRX active state through the physical layer address. The first device configured with DRX that performs sidelink communication with the second device can also be distinguished by adding a DRX configuration identifier, that is to say, the DRX configuration identifier can be included in the first indication information to indicate to the network device that it is in DRX activation. Status of the first device. This solution does not limit the specific method used to indicate to the network device.

FIG. 4 is a schematic flowchart of Embodiment 2 of a method for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 4 , on the basis of the foregoing embodiment, on the second side, the sidelink The method for indicating the status of the equipment in the road further includes the following steps:

S104: Acquire sidelink transmission resources.

S105: Send a second message responding to the first message to the first device through the sidelink transmission resource.

In this solution, after sending the first indication information to the network device, the second device needs to acquire the sidelink transmission resource that responds to the first device.

In an implementation manner, the network device may configure the second device with a responsive sidelink transmission resource, so that the second device can send a responsive message to the first device based on the resource pair.

After configuring the second device with the sidelink transmission resource for responding to the first device, the network device sends the sidelink transmission resource to the second device.

After acquiring the sidelink transmission resource, the second device sends a second message in response to the first device through the sidelink transmission resource, that is, responds to the first message sent by the second device.

Optionally, in addition to acquiring the sidelink transmission resources according to the configuration of the network device, the second device may also select appropriate resources from the preconfigured sidelink resource pool to respond to the first device. This program does not impose restrictions.

For the first device, if the first message sent is physical layer information, the second message responded by the second device is received in a time slot corresponding to the physical layer.

If the first message sent is information other than the physical layer information, receive the second message responded by the second device during the timing of the first timer, and stop the first timer if the second information is successfully received Timing.

In the method for indicating the device status in the sidelink provided by the foregoing embodiment, after the first device sends the first message that needs to respond to the second device, it enters the DRX active state at the first time, and the second device receives the request. After responding to the first message, send the first indication information to the network device connected to the second device, indicating that the first device needs to respond or is in a DRX active state, so that the network device can know that the first device sends the message according to the first indication information The second device can respond to the first message sent by the first device according to the resources, and configure the transmission resources of the sidelink for the second device in time. Provided is a method for reporting the state of the sender device to the network in the side link power saving mechanism, so that the network side can configure resources in time, and the second device responds to the message that needs to be responded in the side link in time to avoid A transfer failure occurred.

Based on the above-mentioned embodiments, the method for indicating the device status in the sidelink provided by the present application will be specifically described below through several specific implementation manners.

FIG. 5 is a schematic flowchart of Embodiment 3 of a method for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 5 , the method for indicating device status in a sidelink specifically includes the following steps:

S201: Send a first message requiring a response to the second device.

After the first device sends the first message requiring a response to the second device, the RTT timer may be started.

S202: The DRX is activated at the first time.

S203: The second device sends UCI/MAC CE/RRC signaling to the network device.

In this solution, there is no sequence between S202 and S203.

S204: Acquire sidelink transmission resources.

S205: Send a second message responding to a message to the first device.

Based on the above steps, in this solution, the second device as the receiving end can send UCI, or MAC CE, or RRC signaling to the network device to indicate the state of the first device or send a message that requires a response. Specifically, it includes the following implementation methods:

Embodiment 1, reporting through physical layer signaling

The first implementation: use the physical layer address to distinguish the first device configured with DRX that performs sidelink communication with the second device, that is, by including the physical layer address in the report message to indicate to the network the first device in the DRX active state . Specific steps are as follows:

1. The first device sends a first message that needs to be replied to to the second device. The first message may be: physical layer information; MAC CE information, such as CSI report scheduling information; RLC layer information, such as RLC status report scheduling information; PDCP Layer information; RRC signaling, such as UE capability acquisition information, measurement report scheduling information, RRC reconfiguration information, etc.

After sending the first message to the second device, the first device starts the RTT timer.

2. The first device enters the DRX active state and is ready to receive a reply message from the second device, that is, the second message in response.

This active state is indicated by the INACTIVE timer, and the INACTIVE timer starts after the RTT timer expires.

3. The second device receives the first message sent by the first device.

4. The second device reports UCI information to the network, and the UCI information is used to indicate that the first device is waiting for a reply and is in a DRX active state;

The UCI information may include the address information of the first device. For example, the address information may be transmitted by one or more bits. For example, in the BSR information, the address information is 5 bits; the priority of the UCI information is the same as that of the first device. The priority of the first message is the same.

On the network device side, the network device receives the first indication information sent by the second device, that is, UCI information, and confirms according to the UCI information that the first device has sent a message requiring a response to the second device and/or the first device In the DRX active state of discontinuous reception.

5. The second device obtains the transmission resources of the side link by means of mode1/mode2. That is, the transmission resources may be selected from the sideline transmission resource pool, or the transmission resources may be configured by the network device.

In an implementation manner, the network device may configure the second device with sidelink transmission resources for responding to the first device, and send the sidelink transmission resources to the second device.

6. The second device replies to the first message sent by the first device. That is, the second message may be sent to the first device through the sidelink transmission resource.

7. The first device stops the INACTIVE timer if it receives the response information from the second device.

If the INACTIVE timer expires without receiving the response information from the second device, it is considered that the transmission fails.

Optionally, the second device may further include the following steps after responding to the first message of the first device:

8. The second device sends a second indication to the network device, where the second indication information is used to instruct the first device to enter the DRX dormancy state, or the first device can also be determined to enter the DRX sleep state by the time-out of the first timer of the first device. DRX sleep state.

The second indication information may also be UCI, and its specific indication method is similar to that of the first indication information, except that it instructs the first device to enter the DRX sleep state, and the UCI sent by the second indication information also includes the address information of the first device. In addition, 1 bit may be added to the information to indicate the DRX sleep state of the first device. In this case, 1 bit may also be added to the first indication information to indicate the DRX sleep state of the first device. For example: you can use 1 for active and 0 for sleep.

Optionally, the priority of the UCI is the same as the priority of the first message.

The second implementation: by adding the DRX configuration identifier (DRX_configuration_ID) parameter to distinguish the first device configured with DRX that communicates with the second device on the side link, that is, each device maintains the DRX_configuration_ID parameter, and includes the DRX_configuration_ID parameter in the report message. The parameter indicates to the network which device is in the DRX active state. Specific steps are as follows:

3. The second device receives the first message sent by the first device.

The UCI information includes the DRX_configuration_ID associated with the UE1, and the priority of the UCI information is the same as the priority of the first message from the first device.

6. The second device replies to the first message sent by the first device.

The second indication information can also be UCI, and its specific indication method is similar to the first indication information, except that it instructs the first device to enter the DRX sleep state, and the UCI sent by the second indication information also includes the DRX configuration related to the first device ID, and can be used to indicate the DRX sleep state of the first device by adding 1 bit to the information. In this case, 1 bit can also be added to the first indication information to indicate the DRX sleep state of the first device. . For example: 1 can be used for active and 0 for sleep.

Embodiment 2: Reporting through MAC CE

The first implementation uses the MAC layer address to distinguish the first device configured with DRX that performs sidelink communication with the second device, that is, by including the MAC layer address in the report message to indicate to the network the first device in the DRX active state . Specific steps are as follows:

3. The second device receives the first message sent by the first device.

4. Report MAC CE information to the network, the MAC CE information is used to indicate that UE1 is waiting for a reply and is in the DRX active state;

The MAC CE information includes the MAC address of UE1, for example, 16 bits; the priority of the MAC CE information is the same as the priority of the first message from the first device.

6. The second device replies to the first message sent by the first device.

8. The second device sends a second indication to the network device, where the second indication information is used to instruct the first device to enter the DRX sleep state. Alternatively, it may also be determined by the first timer of the first device that the first device enters the DRX sleep state.

The second indication information can also be MAC CE information. The specific indication method is similar to the first indication information, except that it instructs the first device to enter the DRX sleep state. The MAC CE information sent by the second indication information also includes the first device. MAC address, and can be used to indicate the DRX sleep state of the first device by adding 1 bit to the information. In this case, 1 bit can also be added to the first indication information to indicate the DRX of the first device. sleep state. For example: you can use 1 for active and 0 for sleep.

Optionally, the priority of the MAC CE information is the same as the priority of the first message.

In the second implementation, the DRX configuration identifier (DRX_configuration_ID) parameter is added to distinguish the first device configured with DRX that communicates with the second device on the side link, that is, each device maintains the DRX_configuration_ID parameter, and includes this parameter in the report message. The parameter indicates to the network that the first device is in the DRX active state. Specific steps are as follows:

3. The second device receives the first message sent by the first device.

4. The second device reports MAC CE information to the network, and the MAC CE information is used to indicate that the first device is waiting for a reply and is in a DRX active state;

The MAC CE information may contain the DRX_configuration_ID associated with the first device; the priority of the MAC CE information is the same as the priority of the first message from the first device.

6. The second device replies to the first message sent by the first device.

8. The second device sends second indication information to the network device, where the second indication information is used to instruct the first device to enter the DRX sleep state. Alternatively, it may also be determined by the first timer of the first device that the first device enters the DRX sleep state.

The second indication information can also be MAC CE information. The specific indication method is similar to the first indication information, except that it instructs the first device to enter the DRX sleep state. The MAC CE information sent by the second indication information also includes the first device. DRX_configuration_ID, and can be used to indicate the DRX sleep state of the first device by adding 1 bit to the information. In this case, 1 bit can also be added to the first indication information to indicate the DRX sleep state of the first device. state. For example: you can use 1 for active and 0 for sleep.

Embodiment 3: Reporting through RRC signaling

In this solution, it should be understood that, in this embodiment, the device is in an RRC connection state, that is, a connection with the cellular network has been established, and the device ensures that it has obtained a valid SIB12.

The specific implementation steps are as follows:

3. The second device receives the first message sent by the first device.

4. The second device starts the SidelinkUEInformation process, and reports the SidelinkUEInformationNR information, that is, the first indication information, to the network, and the first indication information is RRC signaling:

In the RRC signaling (for example: SL-TxResourceReq IE), an optional parameter indicating the active state of the counterpart UE is added, that is, a parameter used to indicate that the first device in the sidelink is in the DRX active state is added.

6. The second device replies to the first message sent by the first device.

The second indication information may also be RRC signaling, and its specific indication method is similar to the first indication information, except that the second indication information instructs the first device to enter the DRX sleep state, and the RRC signaling sent by the second indication information includes: A parameter used to instruct the first device in the sidelink to enter the DRX sleep state.

In the method for indicating the device status in the sidelink provided by any of the foregoing embodiments, the unicast scenario is described. For multicast scenarios, the technical solutions provided in this application are also applicable. Specifically, the first device may simultaneously send the first message that needs to be replied to to multiple second devices in the group. For multiple second devices in the group that receive the first message, they can report to the network device through the solutions provided in the foregoing embodiments, so as to obtain sidelink transmission resources in time, and send the message to the first device. message in response. For the first device, before the INACTIVE timer expires, if the first device receives responses from all multiple second devices, the INACTIVE timer is stopped, otherwise the transmission with the unresponsive second device is considered to have failed.

These second devices may also report to the network device that the first device is in the DRX sleep state, which is not limited in this solution.

FIG. 6 is a schematic diagram of a multicast scenario in a sidelink provided by an embodiment of the present application. As shown in FIG. 6 , device 0 to device 4 are five devices in the multicast scenario, and device 0 is directed to the devices in the group respectively. 1. Device 2, device 3, and device 4 have sent a message that needs a response. For device 1 to device 4, it can be reported to the network device according to the solution provided in the preceding embodiment, so as to obtain sidelink transmission resources, Respond to device 0. As shown in the figure, device 0 successfully received the response messages from device 1 and device 3, and responded successfully. If device 2 and device 4 do not, then device 0 can consider that the transmission between device 2 and device 4 fails.

The method for indicating the device status in the sidelink provided by the various embodiments of the present application provides a method for reporting the DRX status of the counterpart device to the network in the sidelink power saving mechanism, so that the network can fully know the DRX status of the counterpart device , so that the Rx device can obtain the sending resources in time when it needs to respond to the message from the Tx device, thereby avoiding or reducing the problem of transmission failure.

FIG. 7 is a schematic structural diagram of Embodiment 1 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 7 , the apparatus 10 for indicating device status in the sidelink includes:

a sending module 11, configured to send a first message to the second device through the side link, where the first message is a message that needs a response;

The processing module 12 is configured to make the device status indication device 10 in the sidelink be in a DRX active state at a first time, where the first time is determined according to the first message.

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

physical layer information;

MAC CE information;

RLC layer information;

PDCP layer information;

RRC signaling.

In a specific implementation manner, the first time is a time slot corresponding to the physical layer information.

In a specific implementation manner, the device 10 for indicating device status in the sidelink further includes:

The receiving module 13 is configured to receive the second message responded by the second device.

In a specific implementation manner, the processing module 12 is further configured to:

Start a first timer, the first time is the timing period of the first timer, and the duration of the first timer is determined according to the DRX configuration of the device status indication device in the sidelink, so The first message includes other information than the physical layer information.

In a specific implementation manner, the apparatus 10 for indicating device status in the sidelink further includes:

The receiving module 13 is configured to receive the second message responded by the second device, and stop the first timer.

In Embodiment 1 of the device status indication device in the sidelink provided by the present application, any implementation is used to execute the technical solution on the first device side in any method embodiment, and its implementation principle and technical effect are similar. No longer.

8 is a schematic structural diagram of Embodiment 2 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 8 , the apparatus 20 for indicating device status in the sidelink includes:

a receiving module 21, configured to receive a first message sent by a first device through a sidelink, where the first message is a message that needs a response;

A sending module 22, configured to send first indication information to a network device, where the first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a discontinuous reception DRX activation state .

Optionally, the sending module 22 is also used for:

Send second indication information to the network device, where the second indication information is used to instruct the first device to enter a DRX sleep state.

In a specific implementation manner, the device 20 for indicating device status in the sidelink further includes:

a processing module 23, configured to acquire sidelink transmission resources;

The sending module 22 is further configured to send a second message responding to the first message to the first device through the sidelink transmission resource.

Optionally, the receiving module 21 is also used for:

The sidelink transmission resources configured by the network device for responding to the first device are received.

Optionally, the first indication information or the second indication information is any of the following:

UCI;

MAC CE information;

RRC signaling.

Optionally, the UCI includes address information of the first device.

Optionally, the UCI includes a DRX configuration identifier of the first device, where the DRX configuration identifier is used to identify the first device.

Optionally, the UCI has the same priority as the first message.

Optionally, the MAC CE information includes the MAC address of the first device.

Optionally, the MAC CE information includes a DRX configuration identifier of the first device, where the DRX configuration identifier is used to identify the first device.

Optionally, the MAC CE message has the same priority as the first message.

Optionally, the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.

Optionally, the RRC signaling includes a parameter for instructing the first device in the sidelink to enter a DRX sleep state.

physical layer information;

MAC CE information;

RLC layer information;

PDCP layer information;

RRC signaling.

Any of the implementations in Embodiment 2 of the apparatus for indicating device status in the sidelink provided by this embodiment of the present application is used to implement the technical solution on the second device side in any of the foregoing method embodiments, and its implementation principle and technical effect similar, and will not be repeated here.

9 is a schematic structural diagram of Embodiment 3 of an apparatus for indicating device status in a sidelink provided by an embodiment of the present application. As shown in FIG. 9 , the apparatus 30 for indicating device status in the sidelink includes:

The receiving module 31 is configured to receive first indication information sent by the second device, where the first indication information is used to indicate that the first device has sent a message requiring a response to the second device and/or the first device is in Discontinuous reception DRX activation status;

a processing module 32, configured to configure, for the second device, sidelink transmission resources for responding to the first device;

A sending module 33, configured to send the sidelink transmission resource to the second device.

Optionally, the receiving module 31 is also used for:

Receive second indication information sent by the second device, where the second indication information is used to instruct the first device to enter a DRX sleep state.

UCI;

MAC CE information;

RRC signaling.

In a specific embodiment, the UCI includes address information of the first device.

In a specific embodiment, the MAC CE information includes the MAC address of the first device.

In a specific implementation manner, the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.

Any of the embodiments in Embodiment 3 of the device status indication device in the sidelink provided by this embodiment of the present application is used to execute the technical solution on the network device side in any of the foregoing method embodiments, and its implementation principles and technical effects are similar , and will not be repeated here.

FIG. 10 is a schematic structural diagram of an electronic device provided in this embodiment. As shown in FIG. 10 , the electronic device 100 includes:

processor 111, memory 112, receiver 113 and transmitter 114;

The memory 112 stores computer-executed instructions;

The processor 111 executes the computer-executed instructions stored in the memory 112, so that the processor 111 executes the technical solutions on the first device side in the foregoing method embodiments.

FIG. 11 is a schematic structural diagram of another electronic device provided in this embodiment. As shown in FIG. 11 , the electronic device 200 includes:

processor 211, memory 212, receiver 213 and transmitter 214;

The memory 212 stores computer-executed instructions;

The processor 211 executes the computer-executed instructions stored in the memory 212, so that the processor 211 executes the technical solutions on the second device side in the foregoing method embodiments.

FIG. 12 is a schematic structural diagram of a network device provided in this embodiment. As shown in FIG. 12 , the network device 300 includes:

processor 311, memory 312, receiver 313 and transmitter 314;

The memory 312 stores computer-executable instructions;

The processor 311 executes the computer-executed instructions stored in the memory 312, so that the processor 311 executes the technical solutions on the network device side in the foregoing method embodiments.

In the foregoing embodiments, the electronic device or the network device is a simple design, the embodiments of the present application do not limit the number of processors and memories in the device, and the foregoing embodiments only use 1 as an example for description.

In a specific implementation of the above electronic device or network device, the memory, the processor and the receiver may be connected through a bus, or may be connected in other ways. Optionally, the memory can be integrated inside the processor.

In addition, the electronic equipment or network equipment provided in this application also includes other devices such as communication interfaces, which are not limited in this solution.

Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the first method in any of the foregoing method embodiments. A technical solution on the device side.

Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the first method in any of the foregoing method embodiments. Two technical solutions on the device side.

Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the network in any of the foregoing method embodiments The technical solution on the device side.

Optionally, the above-mentioned processor may be a chip.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, where the processing module is used to implement the solution of the first device in any of the foregoing method embodiments.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, where the processing module is used to implement the solution of the second device in any of the foregoing method embodiments.

An embodiment of the present application further provides a chip, including: a processing module and a communication interface, where the processing module is configured to implement the solution of the network device in any of the foregoing method embodiments.

Further, any of the above-mentioned chips also includes a storage module (such as a memory), the storage module is used for storing instructions, the processing module is used for executing the instructions stored in the storage module, and the execution of the instructions stored in the storage module causes the processing module to execute the aforementioned instructions. The technical solutions in any method embodiment.

An embodiment of the present application further provides a program, which, when executed by a processor, is used to implement the solution of the first device, or the second device, or the network device in any of the foregoing method embodiments.

Embodiments of the present application further provide a computer program product, including program instructions, where the program instructions are used to implement the solution of the first device, or the second device, or the network device in any of the foregoing method embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, 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 modules may be in electrical, mechanical or other forms.

In the specific implementation of any of the above-mentioned devices, it should be understood that the processor may be a central processing unit (English: Central Processing Unit, referred to as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor). , referred to as: DSP), application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as: ASIC) and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps in combination with the method disclosed in the present application can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

All or part of the steps for implementing the above method embodiments may be completed by program instructions related to hardware. The aforementioned program can be stored in a readable memory. When the program is executed, the steps including the above method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviated as: ROM), RAM, flash memory, hard disk, Solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

Claims

A method for indicating device status in a sidelink, characterized in that being applied to a first device, the method comprising:

Send a first message to the second device through the side link, where the first message is a message requiring a response;

The DRX is in an active state of discontinuous reception at a first time, where the first time is determined according to the first message.
The method according to claim 1, wherein the first message includes at least one of the following information:

physical layer information;

medium access control layer control unit MAC CE information;

Radio link control RLC layer information;

Packet Data Convergence Protocol PDCP layer information;

Radio Resource Control RRC signaling.
The method according to claim 2, wherein the first time is a time slot corresponding to the physical layer information.
The method according to claim 3, wherein the method further comprises:

A second message responsive to the second device is received.
The method according to claim 2, wherein the method further comprises:

Start a first timer, the first time is the timing period of the first timer, the duration of the first timer is determined according to the DRX configuration of the first device, and the first message includes all information other than the physical layer information described above.
The method according to claim 5, wherein the method further comprises:

A second message responded by the second device is received, and the first timer is stopped.
A method for indicating device status in a sidelink, characterized in that it is applied to a second device, and the method includes:

receiving a first message sent by the first device through the sidelink, where the first message is a message requiring a response;

Send first indication information to the network device, where the first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a discontinuous reception DRX activation state.
The method according to claim 7, wherein the method further comprises:

Send second indication information to the network device, where the second indication information is used to instruct the first device to enter a DRX sleep state.
The method according to claim 7 or 8, wherein the method further comprises:

obtain sidelink transmission resources;

A second message responsive to the first message is sent to the first device over the sidelink transmission resource.
The method according to claim 9, wherein the acquiring sidelink transmission resources comprises:

The sidelink transmission resource configured by the network device for responding to the first device is received.
The method according to claim 8, wherein the first indication information or the second indication information is any one of the following:

Uplink control information UCI;

medium access control layer control unit MAC CE information;

Radio Resource Control RRC signaling.
The method of claim 11, wherein the UCI includes address information of the first device.
The method according to claim 11, wherein the UCI comprises a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The method according to claim 12 or 13, wherein the UCI has the same priority as the first message.
The method of claim 11, wherein the MAC CE information includes the MAC address of the first device.
The method according to claim 11, wherein the MAC CE information includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The method according to claim 15 or 16, wherein the MAC CE message has the same priority as the first message.
The method according to claim 11, wherein the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.
The method according to claim 11, wherein the RRC signaling includes a parameter for instructing the first device in the sidelink to enter a DRX sleep state.
The method according to any one of claims 7 to 19, wherein the first message includes at least one of the following information:

physical layer information;

MAC CE information;

Radio link control RLC layer information;

Packet Data Convergence Protocol PDCP layer information;

Radio Resource Control RRC signaling.
A method for indicating device status in a sidelink, characterized in that, applied to a network device, comprising:

Receive first indication information sent by the second device, where the first indication information is used to indicate that the first device has sent a message that requires a response to the second device and/or the first device is in a discontinuous reception DRX activation state ;

configuring, for the second device, sidelink transmission resources for responding to the first device;

The sidelink transmission resources are sent to the second device.
The method of claim 21, wherein the method further comprises:

Receive second indication information sent by the second device, where the second indication information is used to instruct the first device to enter a DRX sleep state.
The method according to claim 22, wherein the first indication information or the second indication information is any one of the following:

Uplink control information UCI;

medium access control layer control unit MAC CE information;

Radio Resource Control RRC signaling.
The method of claim 23, wherein the UCI includes address information of the first device.
The method of claim 23, wherein the UCI includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The method of claim 23, wherein the MAC CE information includes the MAC address of the first device.
The method according to claim 23, wherein the MAC CE information includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The method according to claim 23, wherein the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.
The method according to claim 23, wherein the RRC signaling includes a parameter for instructing the first device in the sidelink to enter a DRX sleep state.
A device for indicating device status in a sidelink, comprising:

a sending module, configured to send a first message to the second device through the side link, where the first message is a message requiring a response;

A processing module, configured to make the device state indicating device in the sidelink be in a discontinuous reception DRX active state at a first time, where the first time is determined according to the first message.
The apparatus according to claim 30, wherein the first message includes at least one of the following information:

physical layer information;

medium access control layer control unit MAC CE information;

Radio link control RLC layer information;

Packet Data Convergence Protocol PDCP layer information;

Radio Resource Control RRC signaling.
The apparatus according to claim 31, wherein the first time is a time slot corresponding to the physical layer information.
The apparatus of claim 32, wherein the apparatus further comprises:

A receiving module, configured to receive a second message responded by the second device.
The apparatus according to claim 31, wherein the processing module is further configured to:

Start a first timer, the first time is the timing period of the first timer, and the duration of the first timer is determined according to the DRX configuration of the device status indication device in the sidelink, so The first message includes other information than the physical layer information.
The apparatus of claim 34, wherein the apparatus further comprises:

A receiving module, configured to receive a second message responded by the second device, and stop the first timer.
A device for indicating device status in a sidelink, comprising:

a receiving module, configured to receive a first message sent by the first device through the sidelink, where the first message is a message requiring a response;

A sending module, configured to send first indication information to a network device, where the first indication information is used to indicate that the first device has sent a message requiring a response and/or the first device is in a discontinuous reception DRX activation state.
The device according to claim 36, wherein the sending module is further configured to:

Send second indication information to the network device, where the second indication information is used to instruct the first device to enter a DRX sleep state.
The device according to claim 36 or 37, wherein the device further comprises:

a processing module, used for acquiring sidelink transmission resources;

The sending module is further configured to send a second message responding to the first message to the first device through the sidelink transmission resource.
The device according to claim 38, wherein the receiving module is further configured to:

The sidelink transmission resource configured by the network device for responding to the first device is received.
The device according to claim 37, wherein the first indication information or the second indication information is any one of the following:

Uplink control information UCI;

medium access control layer control unit MAC CE information;

Radio Resource Control RRC signaling.
The apparatus of claim 40, wherein the UCI includes address information of the first device.
The apparatus of claim 40, wherein the UCI includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The apparatus according to claim 41 or 42, wherein the UCI has the same priority as the first message.
The apparatus of claim 40, wherein the MAC CE information includes the MAC address of the first device.
The apparatus according to claim 40, wherein the MAC CE information includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The apparatus according to claim 44 or 45, wherein the MAC CE message has the same priority as the first message.
The apparatus according to claim 40, wherein the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.
The apparatus according to claim 40, wherein the RRC signaling includes a parameter for instructing the first device in the sidelink to enter a DRX sleep state.
The apparatus according to any one of claims 36 to 48, wherein the first message includes at least one of the following information:

physical layer information;

MAC CE information;

Radio link control RLC layer information;

Packet Data Convergence Protocol PDCP layer information;

Radio Resource Control RRC signaling.
A device for indicating device status in a sidelink, comprising:

A receiving module, configured to receive first indication information sent by the second device, where the first indication information is used to indicate that the first device has sent a message requiring a response to the second device and/or the first device is in a non-responsive state. Continuously receive DRX activation status;

a processing module configured to configure, for the second device, sidelink transmission resources for responding to the first device;

A sending module, configured to send the sidelink transmission resource to the second device.
The apparatus according to claim 50, wherein the receiving module is further configured to:

Receive second indication information sent by the second device, where the second indication information is used to instruct the first device to enter a DRX sleep state.
The device according to claim 51, wherein the first indication information or the second indication information is any one of the following:

Uplink control information UCI;

medium access control layer control unit MAC CE information;

Radio Resource Control RRC signaling.
The apparatus of claim 52, wherein the UCI includes address information of the first device.
The apparatus of claim 52, wherein the UCI includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The apparatus of claim 52, wherein the MAC CE information includes a MAC address of the first device.
The apparatus of claim 52, wherein the MAC CE information includes a DRX configuration identifier of the first device, and the DRX configuration identifier is used to identify the first device.
The apparatus according to claim 52, wherein the RRC signaling includes a parameter for indicating that the first device in the sidelink is in a DRX active state.
The apparatus according to claim 52, wherein the RRC signaling includes a parameter for instructing the first device in the sidelink to enter a DRX sleep state.
An electronic device, comprising:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating the state of a device in a sidelink according to any one of claims 1 to 6.
An electronic device, comprising:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating a device state in a sidelink according to any one of claims 7 to 20.
A network device, characterized in that it includes:

processors, memories, receivers and transmitters;

the memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for indicating a device state in a sidelink according to any one of claims 21 to 29.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, is used to implement the invention as claimed in any one of claims 1 to 6. The indication method of the device status in the sidelink described above.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, is used to implement the invention as claimed in any one of claims 7 to 20. The indication method of the device status in the sidelink described above.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, when the computer-executable instructions are executed by a processor, used to implement any one of claims 21 to 29. The indication method of the device status in the sidelink described above.
A chip, characterized by comprising: a processing module and a communication interface, the processing module being configured to execute the method for indicating device status in a sidelink according to any one of claims 1 to 29.
A computer program product, comprising a computer program, characterized in that, when the computer program is executed by a processor, the method for indicating a device state in a sidelink according to any one of claims 1 to 29 is implemented.