WO2023060447A1

WO2023060447A1 - Signal sending method and apparatus, signal receiving method and apparatus, device, and storage medium

Info

Publication number: WO2023060447A1
Application number: PCT/CN2021/123355
Authority: WO
Inventors: 丁伊; 赵振山; 林晖闵
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-04-20
Also published as: CN117813781A

Abstract

The present application relates to the field of mobile communications, and discloses a signal sending method and apparatus, a signal receiving method and apparatus, a device, and a storage medium. The method comprises: a first device sends a wake-up or sleep signal to a second terminal within a target time range, the wake-up or sleep signal being used for indicating whether the second terminal performs sidelink signal detection. According to the technical solution provided by embodiments of the present application, by introducing a wake-up or sleep signal for indicating whether a terminal performs sidelink signal detection during an activation period, control mechanisms for the terminal to perform the sidelink signal detection are enriched, and the wake-up or sleep signal links whether the sidelink signal detection is performed with whether there is sidelink data, thereby avoiding the problem of performing the sidelink signal detection during the activation period when there is no sidelink data sent, thus reducing unnecessary power consumption.

Description

Signal transmission method, signal reception method, device, equipment and storage medium

technical field

The present application relates to the field of mobile communication, and in particular to a signal sending method, a signal receiving method, a device, a device, and a storage medium.

Background technique

Different from communication data received or sent by access network equipment in a traditional cellular system, sidelink (Sidelink, SL) transmission refers to direct communication data transmission between terminals through a sidelink.

The Discontinuous Reception (DRX) mechanism is introduced in SL transmission. By setting the On Duration and DRX Cycle (Cycle), sidelink signal detection can be performed during the activation time period, which can save continuous sidelink signal detection. Power consumption due to uplink signal detection.

However, when there is no sidelink data transmission during the active time period, performing signal detection on the sidelink still causes unnecessary power consumption.

Contents of the invention

Embodiments of the present application provide a signal sending method, a signal receiving method, a device, a device, and a storage medium. Described technical scheme is as follows:

According to an aspect of an embodiment of the present application, a method for sending a signal is provided, the method including:

The first device sends a wake-up or sleep signal to the second terminal within the target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

According to another aspect of the embodiments of the present application, a signal receiving method is provided, the method comprising:

The second terminal receives the wake-up or sleep signal sent by the first device within the target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

According to another aspect of the embodiments of the present application, a signal sending device is provided, and the device includes:

A sending module, configured for the first device to send a wake-up or sleep signal to the second terminal within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

According to another aspect of the embodiments of the present application, an information receiving device is provided, and the device includes:

The receiving module is configured for the second terminal to receive a wake-up or sleep signal sent by the first device within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

According to another aspect of the embodiment of the present application, a communication device is provided, the communication device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program to realize the above-mentioned signal transmission method and/or signal reception method.

According to another aspect of the embodiments of the present application, there is provided a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the above signal sending method and/or Signal reception method.

According to another aspect of the embodiment of the present application, a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the above signal sending method and/or signal receiving method .

According to another aspect of the embodiments of the present application, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to implement the above signal sending method and/or signal receiving method.

The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:

By introducing a wake-up or sleep signal to indicate whether the terminal performs sidelink signal detection during the active time period, the control mechanism for the terminal to perform sidelink signal detection is enriched. The wake-up or sleep signal will determine whether to perform sidelink signal detection There is sidelink data linking, which avoids the problem of performing sidelink signal detection during the active period when there is no sidelink data transmission, and saves unnecessary power consumption.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

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

FIG. 2 is a schematic diagram of an SL communication network architecture within network coverage;

3 is a schematic diagram of a partial network coverage SL communication network architecture;

FIG. 4 is a schematic diagram of an SL communication network architecture outside network coverage;

Fig. 5 is the schematic diagram of the physical layer structure of SL communication;

FIG. 6 is a schematic diagram of a DRX cycle;

FIG. 7 is a flowchart of a signal sending/receiving method provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of an SL communication network architecture in which the first terminal sends a wake-up or sleep signal according to an embodiment of the present application;

FIG. 9 is a flowchart of a signal sending/receiving method provided by an embodiment of the present application;

Fig. 10 is a schematic diagram of determining an activation time period provided by an embodiment of the present application;

FIG. 11 is a flowchart of a signal sending/receiving method provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of an SL communication network architecture in which a network device sends a wake-up or sleep signal according to an embodiment of the present application;

FIG. 13 is a flowchart of a signal sending/receiving method provided by an embodiment of the present application;

FIG. 14 is a flowchart of a signal sending/receiving method provided by an embodiment of the present application;

Fig. 15 is a block diagram of a signal sending device provided by an embodiment of the present application;

Fig. 16 is a block diagram of a signal receiving device provided by an embodiment of the present application;

Fig. 17 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The network architecture and business scenarios described in the embodiments of the present application are for 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. The evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, a first parameter may also be called a second parameter, and similarly, a second parameter may also be called a first parameter. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination."

IoV communication includes Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication and Vehicle to People (V2P) communication. By supporting V2V communication, V2I communication and V2P communication, the Internet of Vehicles can effectively improve traffic safety, improve traffic efficiency and enrich travel experience.

Utilizing existing cellular communication technology to support IoV communication can effectively utilize deployed base stations, reduce equipment overhead, and facilitate the provision of services with Quality of Service (QoS) guarantees, thereby meeting the needs of IOV services .

In the R14 (Release14)/R15 (Release15) of the Long Term Evolution (LTE), the communication of the Internet of Vehicles is supported through the cellular network, specifically referring to the Cellular based V2X (C-V2X) technology. In C-V2X, the communication between vehicle-mounted devices (such as vehicle-mounted terminals) and other devices can be relayed through base stations and core network devices, that is, the communication link between terminals and base stations in the original cellular network is used to realize the communication between vehicle-mounted devices and other devices. Communication between other devices (including uplink (UpLink, UL) communication and downlink (DownLink, DL) communication). Vehicle-mounted devices and other devices can also communicate directly through direct links (also called sidelinks) between devices.

Sidelink communication is a device-to-device communication method with high spectral efficiency and low transmission delay. The sidelink has two transmission modes. The first transmission mode is: the network device allocates transmission resources for the terminal (vehicle device), and the terminal performs sidelink data transmission on the allocated transmission resources. The second transmission mode is: the network device allocates a resource pool for the terminal, and the terminal selects one or more transmission resources from the resource pool for data transmission on the sidelink. Exemplarily, the terminal may select transmission resources from the resource pool by listening, or select transmission resources from the resource pool by random selection. Compared with the Uu interface communication, the sidelink communication has the characteristics of short delay and low overhead, and is very suitable for direct communication between on-board equipment and other peripheral equipment close to the geographical location.

With the development of 5G mobile communication technology, in R16 of the 3rd Generation Partnership Project (3GPP), it is proposed to use 5G new air interface (New Radio, NR) technology to realize the service of the new Internet of Vehicles communication And scene support, such as supporting fleet management (Vehicles Platooning), perception extension (Extended Sensors), advanced driving (Advanced Driving), and remote driving (Remote Driving), etc. Generally speaking, 5G V2X sidelink can provide higher communication rate, shorter communication delay, and more reliable communication quality.

Fig. 1 shows a schematic diagram of an SL communication network architecture provided by an exemplary embodiment of the present application. The SL communication network architecture may include: a core network 11 , an access network 12 and a terminal 13 .

The core network 11 includes several core network devices. The functions of the core network equipment are mainly to provide user connections, manage users, and carry out services, and provide an interface to the external network as a bearer network. For example, the core network of the fifth generation mobile communication technology (5th Generation, 5G) NR system may include access and mobility management function (Access and Mobility Management Function, AMF) entity, user plane function (User Plane Function, UPF) Entities and Session Management Function (Session Management Function, SMF) entities and other devices.

The access network 12 includes several access network devices 14. The access network in the 5G NR system can be called a new generation radio access network (New Generation-Radio Access Network, NG-RAN). The access network device 14 is a device deployed in the access network 12 to provide a wireless communication function for the terminal 13 . The access network device 14 may include various forms of macro base stations, micro base stations, relay stations, access points and so on. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in a 5G NR system, it is called a 5G base station (Next Generation Node B, gNodeB or gNB). With the evolution of communication technology, the name "access network equipment" may change. For the convenience of description, in the embodiments of the present disclosure, the above-mentioned devices that provide the wireless communication function for the terminal 13 are collectively referred to as access network devices.

The number of terminals 13 is generally multiple, and one or more terminals 13 may be distributed in a cell managed by each access network device 14 . The terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS), etc. wait. For convenience of description, the devices mentioned above are collectively referred to as terminals. The access network device 14 and the core network device communicate with each other through some air technology, such as the NG interface in the 5G NR system. The access network device 14 and the terminal 13 communicate with each other through a certain air technology, such as a Uu interface.

Terminal 13 and terminal 13 (such as vehicle-mounted equipment and other equipment (such as other vehicle-mounted equipment, mobile phones, road side units (Road Side Unit, RSU), etc.)) can communicate with each other through a direct connection communication interface (such as PC5 interface), corresponding Specifically, the communication link established based on the direct communication interface may be referred to as a direct link or SL. SL transmission is direct communication data transmission between terminals through sidelinks. Unlike traditional cellular systems where communication data is received or sent through access network equipment, SL transmission has the characteristics of short delay and low overhead. It is suitable for communication between two terminals with close geographical location (such as vehicle equipment and other peripheral equipment with close geographical location). It should be noted that, in FIG. 1 , only the vehicle-to-vehicle communication in the V2X scenario is taken as an example, and the SL technology can be applied to scenarios where various terminals communicate directly. In other words, the terminal in this application refers to any device that communicates using the SL technology.

The "5G NR system" in the embodiments of the present disclosure may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solution described in the embodiments of the present disclosure can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.

The UE and the terminal in the embodiments of the present disclosure express the same meaning, and the two can replace each other.

In the side link communication, according to the network coverage of the communicating terminal, it can be divided into outbound communication inside the network coverage, side link communication under partial network coverage, and outbound communication outside the network coverage.

Fig. 2 shows a schematic diagram of an SL communication network architecture within network coverage. All terminals 13 performing lateral communication are within the coverage of the same access network device 14 , and all terminals 13 can perform lateral communication based on the same lateral configuration by receiving configuration signaling from the access network device 14 .

Fig. 3 shows a schematic diagram of a partial network coverage SL communication network architecture. The first terminal 131 performing lateral communication is located within the coverage of the base station. The first terminal 131 can receive configuration signaling from the access network device 14 and perform lateral communication according to the configuration of the access network device 14 . The second terminal 132 outside the network coverage cannot receive the configuration signaling of the access network device 14. In this case, the second terminal 132 outside the network coverage will The information carried in the sidelink broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) sent by the first terminal 131 within the network coverage determines the sidelink configuration, and performs sidelink communication.

Fig. 4 shows a schematic diagram of an SL communication network architecture outside network coverage. All the terminals 13 performing lateral communication are located outside the coverage of the network, and all terminals 13 determine the lateral configuration according to the pre-configuration information to perform lateral communication.

Regarding SL transmission, 3GPP defines two transmission modes: Mode A and Mode B.

Mode A (also known as mode 1 or base station scheduling mode): the transmission resources of the terminal are allocated by the access network equipment (such as the base station), and the terminal communicates data on the sidelink according to the transmission resources allocated by the access network equipment Transmission, wherein, the access network device may allocate transmission resources for a single transmission to the terminal, and may also allocate transmission resources for semi-static transmission to the terminal.

Mode B (also known as mode 2 or UE self-selected resource mode): the terminal selects transmission resources from the resource pool by itself to transmit communication data. Specifically, the terminal may select transmission resources from the resource pool by listening, or select transmission resources from the resource pool by random selection.

The physical layer structure of SL communication in NR V2X system is shown in Figure 5. A Physical Sidelink Control Channel (PSCCH) is used to carry first sidelink control information, and a Physical Sidelink Shared Channel (Physical Sidelink Shared Channel, PSSCH) is used to carry data and second sidelink control information. PSCCH and PSSCH are sent in the same slot. The above-mentioned first lateral control information and second lateral control information may be two lateral control information with different functions. For example, the first sideline control information is carried in the PSCCH, which mainly includes domains related to resource interception, so that other terminals can perform resource exclusion and resource selection after decoding. In addition to data, the PSSCH also carries second sidelink control information. The second sidelink control information mainly includes data demodulation-related fields, so as to facilitate other terminals to demodulate data in the PSSCH.

In the NR V2X system, in the above-mentioned mode B, the terminal selects transmission resources to send data by itself. Resource reservation is the premise of resource selection.

Resource reservation refers to that the terminal sends first sideline control information in the PSCCH to reserve resources to be used next. In the NR V2X system, resource reservation within a Transport Block (TB) is supported as well as resource reservation between TBs.

Next, introduce the DRX mechanism:

In a wireless network, a user terminal (User Equipment, UE) must always monitor the Physical Downlink Control Channel (PDCCH), and send and receive data according to the instruction message sent by the network side, which results in power consumption and data transmission of the UE. The time delay is relatively large. Therefore, the 3GPP standard protocol starts to introduce a discontinuous reception mechanism (Discontinuous Reception, DRX) energy saving strategy in the LTE system.

The basic mechanism of DRX is to configure a DRX cycle for UE. The DRX cycle consists of an active time period and DRX opportunity (Opportunity for DRX): during the active time period, UE monitors and receives PDCCH; during the DRX opportunity time, UE does not receive PDCCH to reduce power consumption.

In the DRX operation, the terminal controls the terminal to be in an active state or a dormant state according to some timer parameters configured by the network.

For example, the drx-onDurationTimer parameter indicates the length of the active time period, and the drx-LongCycleStartOffset parameter and the drx-SlotOffset parameter indicate the start position of the DRX cycle. According to the above parameters, the terminal starts a timer whose length is the value indicated by the drx-onDurationTimer parameter at the starting position of the DRX cycle, and keeps the active state before the timer is reduced to 0.

When the terminal is within the activation time period, that is, before the On duration timer decreases to 0, if the terminal detects PDCCH, it will also start timers such as the inactivity timer and the retransmission timer to extend the activation state. Used to receive scheduled data or retransmit.

FIG. 6 shows a schematic diagram of a DRX cycle. A DRX cycle 11 includes an active time period 12 and a DRX opportunity 13 .

Fig. 7 provides a flow chart of a signal sending/receiving method provided by an embodiment of the present application. The first device in this method may be executed by the access network device or terminal shown in Fig. 1, and the second terminal may be executed by the access network device or terminal shown in Fig. 1 The terminal execution shown, the method includes:

Step 502: the first device sends a wake-up or sleep signal to the second terminal within the target time range;

Exemplarily, the first device may be a network device, or may be a first terminal;

The wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection. Exemplarily, the wake-up signal is used to instruct the second terminal to perform sidelink signal detection; the sleep signal is used to instruct the second terminal not to perform sidelink signal detection.

Step 504: the second terminal receives the wake-up or sleep signal sent by the first device within the target time range;

The wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection. Exemplarily, the second terminal performs sidelink signal detection when receiving the wake-up signal. When receiving the sleep signal, the second terminal does not perform sidelink signal detection.

To sum up, the method provided by this embodiment enriches the control mechanism for the terminal to perform sidelink signal detection by introducing a wake-up or sleep signal to indicate whether the terminal performs sidelink signal detection. Whether the wake-up or sleep signal is performed The sidelink signal detection is associated with whether there is sidelink data, which avoids the problem of performing sidelink signal detection during the active time period when there is no sidelink data transmission, and saves unnecessary power consumption.

Next, introduce the target time range in the embodiment of this application:

In this application, the methods for configuring the target time range include but are not limited to any of the following:

The target time range is configured from the first terminal to the second terminal;

Exemplarily, the first terminal configures the target time range to the second terminal by using PC5-radio resource control (Radio Resource Control, RRC) through the PC5 interface. The target time range configured by the first terminal to the second terminal may be independently configured by the first terminal, or may be configured by the first terminal according to configuration information sent by the network device.

The target time range is configured by the network device to the second terminal;

Exemplarily, when the second terminal is within the coverage of the network device, the network device configures the target time range for the second terminal. Optionally, the network device simultaneously configures the same target time range for the first terminal and the second terminal.

The target time frame is pre-configured;

There may be one or more preconfigured target time ranges, and this application does not make any limitation.

• The target time range is predefined by the communication protocol.

There may be one or more target time ranges predefined by the communication protocol, and this application does not make any limitation.

In this application, no limitation is imposed on the method of configuring the target time range.

It should be noted that the target time range may be a continuous time unit or a discontinuous time unit.

Next, introduce the situation described in the embodiment shown in FIG. 7 that the first device is the first terminal; FIG. 8 shows the SL communication in which the first terminal sends a wake-up or sleep signal according to an embodiment of the present application. Schematic diagram of the network architecture. The network device 14 sends scheduling information to the first terminal 131 , and the first terminal 131 sends a wake-up signal or a sleep signal to the second terminal 132 .

In the embodiments of the present application provided in FIG. 9 and FIG. 11 , the first device is the first terminal. Exemplarily, side link communication is used between the first terminal and the second terminal. Communication between the first terminal and the second terminal may be through the PC5 interface. Optionally, unicast data is transmitted between the first terminal and the second terminal.

Exemplarily, the first terminal is in an RRC connected (Connected) state with the network device. The state between the second terminal and the network device includes but is not limited to any one of the following: RRC connected (Connected) state, RRC idle (Idle) state, and RRC inactive (Inactive) state. The second terminal is usually within the coverage of the network device, but the situation that the second terminal is not within the coverage of the network device is not excluded.

Considering that the first device is the first terminal, the situation that there is sidelink data to be transmitted, that is, the situation that the first terminal sends the first SR and/or the first BSR to the network device is introduced:

Fig. 9 provides a flow chart of a signal sending/receiving method provided by an embodiment of the present application. The network device in this method can be executed by the access network device shown in Fig. 1, and the first terminal and the second terminal can be executed by the method shown in Fig. 1 As shown in the terminal execution, the method includes:

Step 512: the first terminal sends the DRX configuration to the second terminal;

The wakeup or sleep signal is used to indicate whether the second terminal performs sidelink signal detection during the active time period in the DRX configuration. Exemplarily, the activation time period includes a time period corresponding to an activation period (On Duration) timer.

Exemplarily, the parameters of DRX configuration include but not limited to at least one of the following:

A parameter indicating the activation period timer;

A parameter indicating an Inactivity timer;

Indicates the parameters of the HARQ round-trip delay (Round-Trip Time, RTT) timer;

A parameter indicating a Re-transmission timer;

A parameter indicating the length of the DRX cycle;

• A parameter indicating the start position of the DRX cycle.

Optionally, the second terminal sends auxiliary information to the first terminal. The auxiliary information is used to determine the DRX configuration of the second terminal or to suggest the DRX configuration of the second terminal. Exemplarily, the auxiliary information includes parameters for determining or suggesting the DRX configuration of the second terminal.

Optionally, after receiving the auxiliary information, the first terminal reports the auxiliary information to the network device. The configuration information of the DRX configuration is generated by the network device according to the auxiliary information.

Optionally, the first terminal determines the DRX configuration according to the configuration information sent by the network device, and sends the DRX configuration to the second terminal.

Step 514: the second terminal receives the DRX configuration sent by the first terminal;

In this embodiment, the target time range may be related to the active time period in the DRX configuration, or may not be related to the active time period in the DRX configuration.

Exemplarily, the relationship between the target time range and the activation time period includes but is not limited to:

The start point of the target time range is determined by the start position X of the active time period;

Alternatively, the end of the target time range is determined by the start position X of the active time period.

As shown in FIG. 10 , relation 1 shows the situation that the starting point of the target time range is determined by the starting position X of the active time period, and the starting point of the target time range is the starting position X of the active time period. Relation 2 shows that the end point of the target time range is determined by the start position X of the active time period, and the end point of the target time range is the fifth time slot before the start position X of the active time period.

Exemplarily, the target time range includes but is not limited to any of the following:

Taking the Mth time slot before the starting position X as the reference point, N consecutive time slots backward;

Take the Mth time slot before the starting position X as the reference point, N consecutive time slots forward;

Taking the starting position X as the reference point, K consecutive time slots backward;

·Continuous forward K time slots with the starting position X as the reference point;

Taking the starting position X as a reference point, part of the forward consecutive L time slots, part of the time slots are the bits with the first value in the bitmap with length L corresponding to the L time slots time slot;

Taking the starting position X as the reference point, some time slots in the consecutive L time slots backward, the part time slots are the bits with the first value in the bitmap with a length of L corresponding to the L time slots time slot.

In each embodiment of the present application, forward indicates the time domain position direction earlier than the reference point; similarly, backward indicates the time domain position direction later than the reference point.

Wherein, the configuration method of at least one item in M, N, K, L and the bitmap includes but is not limited to any of the following:

· Configured from the first terminal to the second terminal;

Exemplarily, the first terminal configures to the second terminal by using the PC5-RRC through the PC5 interface. The configuration from the first terminal to the second terminal may be independently configured by the first terminal, or may be configured by the first terminal according to configuration information sent by the network device.

Configured by the network device to the second terminal;

Exemplarily, when the second terminal is within the coverage of the network device, the network device configures the second terminal.

· is pre-configured;

There may be one or more pre-configured contents, and this application does not make any limitation.

• Predefined by the communication protocol.

There may be one or more predefined contents of the communication protocol, and this application does not make any limitation.

Optionally, when the second terminal is within the coverage of the network device, the second terminal reports the DRX configuration to the network device.

Step 516: the first terminal sends the first SR and/or the first BSR to the network device;

A scheduling request (Scheduling Request, SR) or a buffer status report (Buffer Status Report, BSR) is used to request a network device to send scheduling information. Exemplarily, SR is used to indicate whether there is sidelink data to be transmitted, and BSR is used to indicate the amount of sidelink data.

It should be noted that the first terminal may send the first SR and the first BSR to the network device, or may only send the first SR or the first BSR to the network device.

Step 518: The network device receives the first SR and/or the first BSR sent by the first terminal;

The network device receives the first SR and/or the first BSR sent by the first terminal, and determines corresponding scheduling information according to the first SR and/or the first BSR sent by the first terminal. In each embodiment of the present application, the first SR and the second SR may be the same or different; similarly, the first BSR and the second BSR may be the same or different.

Step 520: the network device sends scheduling information to the first terminal;

Scheduling information is used to schedule transmission resources. When the network device receives the first SR and/or the first BSR, the scheduling information is used to schedule the first time-frequency resource and/or the third time-frequency resource.

Optionally, in each embodiment of the present application, the scheduling information is downlink control information (Downlink Control Information, DCI).

Exemplarily, in this embodiment, the scheduling information is used to schedule the first time-frequency resource and/or the third time-frequency resource, that is, the first time-frequency resource and the third time-frequency resource can be sent in one piece of scheduling information, or It can be sent separately in multiple scheduling messages. In this embodiment, description is made by taking the scheduling information as an example for scheduling the first time-frequency resource and the third time-frequency resource.

Wherein, the first time-frequency resource is used for the first terminal to send a wake-up signal to the second terminal, and in other embodiments of the present application, the first time-frequency resource can also be used for the first terminal to send a sleep signal to the second terminal .

Wherein, the third time-frequency resource is used for the first terminal to send sidelink data to the second terminal. That is, the sidelink data requested by the first SR to be sent. In various embodiments of the present application, the third time-frequency resource may or may not be within the activation time period, and no limitation is imposed on this. Optionally, the third time-frequency resource includes at least one time-frequency resource within the activation time period.

It should be noted that, in various embodiments of the present application, the first time-frequency resource and the third time-frequency resource may be the same transmission resource, or may be different transmission resources. In each embodiment of the present application, the quantity of the first time-frequency resource may be one or multiple. Likewise, in various embodiments of the present application, the number of the second time-frequency resource and/or the third time-frequency resource may be one or multiple.

Step 522: the first terminal receives the scheduling information of the network equipment, and determines the first time-frequency resource and the third time-frequency resource;

The first time-frequency resource is used for the first terminal to send a wake-up signal to the second terminal. The third time-frequency resource is used for the first terminal to send sidelink data to the second terminal.

Exemplarily, the first time-frequency resource includes but is not limited to any of the following:

·Physical Sidelink Control Channel (PSCCH);

·Physical Sidelink Feedback Channel (PSFCH).

PSCCH and Physical Sidelink Shared Channel (PSSCH);

Optionally, in each embodiment of the present application, the wake-up or sleep signal is carried in the PSCCH or PSSCH;

Further optionally, when the wake-up or sleep signal is carried in the PSCCH, the information carried by the PSSCH includes but is not limited to any of the following:

The PSSCH carries the second side row control information and filling data;

Or, the PSSCH only carries padding data;

Or, the PSSCH only carries the second side row control information;

Or, the PSSCH carries the second sidelink control information and the sidelink data to be transmitted of the first terminal.

Exemplarily, the third time-frequency resource includes but not limited to: PSCCH and PSSCH.

Step 524: The first terminal sends a wake-up signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information within the target time range;

The first time-frequency resource is determined by the first terminal within the target time range based on the scheduling information sent by the network device; that is, the first terminal sends a wake-up message to the second terminal based on the first time-frequency resource scheduled by the scheduling information within the target time range Signal.

Exemplarily, the format of the wake-up signal includes but is not limited to any of the following:

The format of the first sideline control information, where the first sideline control information is the sideline control information carried in the PSCCH;

The format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

• Sequence-based signaling.

It should be noted that with the development of mobile communication technology, new information formats may appear in the first sideline control information and the second sideline control information, and the wake-up signal in this application is also applicable to the new information formats. Exemplarily, in the case that the wake-up signal is the side data of the first terminal or the medium access control protocol data unit (Medium Access Control Packet Data Unit, MAC PDU) to be sent, there is no need to design a new wake-up signal, namely The scheduling information is within the target time range, and multiple transmissions are scheduled for the first terminal in order to increase the number of transmissions and improve communication reliability.

Step 526: the second terminal performs sidelink signal detection in subsequent T1 activation time periods;

Exemplarily, the sidelink on which the second terminal performs signal detection includes but not limited to at least one of the following: PSCCH and PSSCH.

Exemplarily, T1 is an integer greater than 0, and the configuration method of T1 includes but is not limited to any of the following:

T1 is configured from the first terminal to the second terminal;

T1 is configured by the network device to the second terminal;

· T1 is pre-configured;

• T1 is predefined by the communication protocol.

Optionally, when the second terminal receives the wake-up signal, it is within the range of the activation time period, and the T1 activation time periods in this embodiment include the current activation time period.

Step 528: the first terminal sends sidelink data to the second terminal in the third time-frequency resource;

The third time-frequency resource is determined by the first terminal based on the scheduling information sent by the network device. That is, the first terminal sends sidelink data to the second terminal on the third time-frequency resource scheduled based on the scheduling information. Optionally, the third time-frequency resource includes at least one time-frequency resource within the activation time period.

To sum up, the method provided in this embodiment introduces a wake-up signal to instruct the terminal to perform sidelink signal detection, associates the sidelink signal detection with the existence of sidelink data, and the first terminal sends a wake-up signal to the second terminal. Signal, only in the case of sidelink data transmission, the second terminal performs sidelink signal detection during the active time period, saving unnecessary power consumption.

Considering that the first device is the first terminal, the situation that there is no sidelink data to be transmitted, that is, the situation that the first terminal does not send the first SR and/or the first BSR to the network device: Figure 11 provides the A flowchart of a signal sending/receiving method provided by an embodiment, the network device in this method may be executed by the access network device shown in FIG. 1 , the first terminal and the second terminal may be executed by the terminal shown in FIG. 1 , The method includes:

Step 532: the first terminal sends the DRX configuration to the second terminal;

For this step, reference may be made to step 512 in the above embodiment, and details are not repeated in this embodiment.

Step 534: the second terminal receives the DRX configuration sent by the first terminal;

For this step, reference may be made to step 514 in the above embodiment, and details are not repeated in this embodiment.

Step 536: The network device sends scheduling information to the first terminal;

Scheduling information is used to schedule transmission resources. Exemplarily, in this embodiment, the scheduling information is used to schedule the first time-frequency resource. That is, when the network device does not receive the first SR and/or the first BSR sent by the first terminal, only the first time-frequency resource is scheduled to the first terminal.

The first time-frequency resource is used for the first terminal to send the dormancy signal to the second terminal.

Step 538: The first terminal receives the scheduling information of the network equipment, and determines the first time-frequency resource;

The first time-frequency resource is determined by the first terminal within a target time range based on the scheduling information sent by the network device; the first time-frequency resource is used for the first terminal to send a dormancy signal to the second terminal.

For the introduction of the first time-frequency resource, reference may be made to step 522 in the foregoing embodiment, and details are not repeated in this embodiment.

Step 540: The first terminal sends a dormancy signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information within the target time range;

The first time-frequency resource is determined by the first terminal within the target time range based on the scheduling information sent by the network device; that is, the first terminal sends a dormancy message to the second terminal based on the first time-frequency resource scheduled within the target time range based on the scheduling information. Signal.

Exemplarily, the format of the dormancy signal includes but is not limited to any of the following:

• Sequence-based signaling.

It should be noted that with the development of mobile communication technology, new information formats may appear in the first sideline control information and the second sideline control information, and the dormant signal in this application is also applicable to new information formats.

Step 542: the second terminal does not perform sidelink signal detection in the subsequent T2 activation time periods;

Exemplarily, the sidelink on which the second terminal does not perform signal detection includes but is not limited to at least one of the following: PSCCH and PSSCH.

Exemplarily, T2 is an integer greater than 0, and the configuration method of T2 includes but is not limited to any of the following:

T2 is configured from the first terminal to the second terminal;

T2 is configured by the network device to the second terminal;

· T2 is pre-configured;

• T2 is predefined by the communication protocol.

Optionally, when the second terminal receives the dormancy signal, it is within the range of the activation time period, and the T2 activation time periods in this embodiment include the current activation time period.

To sum up, in the method provided by this embodiment, the dormancy signal is introduced to instruct the terminal not to perform sidelink signal detection, and the non-performance of sidelink signal detection is associated with the absence of sidelink data. The terminal sends a dormancy signal, which avoids the problem of performing sidelink signal detection during the active period when there is no sidelink data transmission, and saves unnecessary power consumption.

Next, the situation described in the embodiment shown in FIG. 7 , where the first device is a network device, is introduced; FIG. 12 shows an SL communication network architecture in which a network device sends a wake-up or sleep signal according to an embodiment of the present application schematic diagram. The network device 14 sends a wake-up signal or a sleep signal to the second terminal 132 , and the first terminal 131 sends sidelink data to the second terminal 132 according to the schedule of the network device 14 .

In the embodiments of the present application provided in FIG. 13 and FIG. 14 , the first device is a network device. Exemplarily, side link communication is used between the first terminal and the second terminal. Communication between the first terminal and the second terminal may be through the PC5 interface. Optionally, unicast data is transmitted between the first terminal and the second terminal.

Exemplarily, the first terminal is in an RRC connected (Connected) state with the network device. The state between the second terminal and the network device includes but is not limited to any one of the following: RRC connected (Connected) state, RRC idle (Idle) state, and RRC inactive (Inactive) state. The second terminal is within the coverage of the network device.

Considering that the first device is a network device, the case where there is side data to be transmitted, that is, the case where the first terminal sends the second SR and/or the second BSR to the network device is introduced:

Figure 13 provides a flow chart of a signal sending/receiving method provided by an embodiment of the present application. The network device in this method can be executed by the access network device shown in Figure 1, and the first terminal and the second terminal can be implemented by the method shown in Figure 1 As shown in the terminal execution, the method includes:

Step 552: the first terminal sends the DRX configuration to the second terminal;

Step 554: the second terminal receives the DRX configuration sent by the first terminal;

Step 556: the first terminal sends a second SR and/or a second BSR to the network device;

For this step, reference may be made to step 516 in the above embodiment, and details are not repeated in this embodiment.

It should be noted that the first terminal may send the second SR and the second BSR to the network device, or may only send the second SR or the second BSR to the network device.

Step 558: The network device receives the second SR and/or the second BSR sent by the first terminal;

The network device receives the second SR and/or the second BSR sent by the first terminal, and determines corresponding scheduling information according to the second SR and/or the second BSR sent by the first terminal.

Step 560: The network device sends scheduling information to the first terminal;

Scheduling information is used to schedule transmission resources. When the network device receives the second SR and/or the second BSR, the scheduling information is used to schedule the third time-frequency resource.

Exemplarily, in this embodiment, the scheduling information is used to schedule the third time-frequency resource. The third time-frequency resource is used for the first terminal to send sidelink data to the second terminal. That is, the sidelink data requested by the second SR to be sent. In various embodiments of the present application, the third time-frequency resource may or may not be within the activation time period, and no limitation is imposed on this. Optionally, the third time-frequency resource includes at least one time-frequency resource within an activation time period.

Step 562: the first terminal receives the scheduling information of the network equipment, and determines the third time-frequency resource;

The third time-frequency resource is used for the first terminal to send sidelink data to the second terminal.

Step 564: The network device sends a wake-up signal to the second terminal on the second time-frequency resource within the target time range;

Exemplarily, the second time-frequency resource is a physical downlink control channel (Physical Downlink Control Channel, PDCCH).

Exemplarily, the format of the wake-up signal is a downlink control information format. The downlink control information is the control information carried in the PDCCH. It should be noted that with the development of mobile communication technology, new information formats may appear in downlink control information, and the wake-up signal in this application is also applicable to new information formats. For example: the wake-up signal is DCI format 2_6 (Format 2_6).

Step 566: the second terminal performs sidelink signal detection in subsequent T1 activation time periods;

For this step, reference may be made to step 526 in the above embodiment, and details are not repeated in this embodiment.

Step 568: the first terminal sends sidelink data to the second terminal in the third time-frequency resource;

For this step, reference may be made to step 528 in the above embodiment, and details are not repeated in this embodiment.

To sum up, the method provided in this embodiment introduces a wake-up signal to instruct the terminal to perform sidelink signal detection, associates sidelink signal detection with the existence of sidelink data, and the network device sends a wake-up signal to the second terminal , only when there is sidelink data transmission, the second terminal performs sidelink signal detection during the active time period, which saves unnecessary power consumption.

Considering that the first device is a network device, the case where there is no sidelink data to be transmitted, that is, the case where the first terminal does not send the second SR and/or the second BSR to the network device:

Fig. 14 provides a flow chart of a signal sending/receiving method provided by an embodiment of the present application. The network device in this method can be executed by the access network device shown in Fig. 1, and the first terminal and the second terminal can be executed by the method shown in Fig. 1 As shown in the terminal execution, the method includes:

Step 572: the first terminal sends the DRX configuration to the second terminal;

Step 574: the second terminal receives the DRX configuration sent by the first terminal;

Step 576: The network device sends a dormancy signal to the second terminal on the second time-frequency resource within the target time range;

Exemplarily, the format of the dormancy signal is a downlink control information format. The downlink control information is the control information carried in the PDCCH. It should be noted that with the development of mobile communication technology, new information formats may appear in downlink control information, and the dormant signal in this application is also applicable to new information formats. For example: the sleep signal is DCI format 2_6 (Format 2_6).

Step 578: The second terminal does not perform sidelink signal detection in the subsequent T2 activation time periods;

For this step, reference may be made to step 542 in the above embodiment, and details are not repeated in this embodiment.

To sum up, the method provided in this embodiment introduces a dormant signal to instruct the terminal not to perform sidelink signal detection, associates no sidelink signal detection with the absence of sidelink data, and sends the network device to the second terminal Sending the dormancy signal avoids the problem of performing sidelink signal detection during the active time period when there is no sidelink data transmission, and saves unnecessary power consumption.

Those of ordinary skill in the art can understand that the above-mentioned embodiments can be implemented independently, and the above-mentioned embodiments can also be freely combined to form a new embodiment, which is not limited in the present application.

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

Fig. 15 shows a block diagram of a signal sending device provided by an exemplary embodiment of the present application, the device includes:

The sending module 610 is configured for the first device to send a wake-up or sleep signal to the second terminal within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

In an optional design of this implementation, the first device is a first terminal, and sidelink communication is used between the first terminal and the second terminal, and the apparatus further includes:

A receiving module 620, configured for the first terminal to receive scheduling information of network equipment;

The sending module 610 is configured to: the first terminal sends the wake-up or sleep signal to the second terminal based on the first time-frequency resources scheduled by the scheduling information within the target time range.

In an optional design of this implementation, the sending module 610 is also configured to:

The first terminal sends a first SR and/or a first BSR to the network device, where the first SR or the first BSR is used to request the network device to send the scheduling information.

In an optional design of this implementation, the first time-frequency resource is:

PSCCH; or, PSCCH and PSSCH; or, PSFCH.

In an optional design of this implementation, when the first time-frequency resources are PSCCH and PSSCH, the wake-up or sleep signal is carried in PSCCH or PSSCH.

In an optional design of this implementation, the wake-up or sleep signal is carried in the PSCCH,

The PSSCH carries the second side line control information and padding data; or, the PSSCH only carries padding data; or, the PSSCH only carries the second side line control information; or, the PSSCH carries the second side line control information and the data to be transmitted by the first terminal.

In an optional design of this implementation, the wake-up or sleep signal is:

Format of the first sideline control information, where the first sideline control information is sideline control information carried in the PSCCH;

Or, the format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

Or, sequence-based signals.

In an optional design of this implementation, the first device is a network device; the sending module 610 is configured to:

When the network device receives the second SR and/or the second BSR sent by the first terminal, send the wake-up signal to the second terminal on a second time-frequency resource within the target time range;

And/or, when the network does not receive the second SR and/or the second BSR sent by the first terminal, send the second time-frequency resource within the target time range to the second terminal Send the sleep signal.

In an optional design of this implementation, the second time-frequency resource is: a physical downlink control channel PDCCH.

In an optional design of this implementation, the wake-up or sleep signal is in a downlink control information format.

The first terminal sends a discontinuous reception DRX configuration to the second terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during the active time period in the DRX configuration .

In an optional design of this implementation, the target time range is configured by the first terminal to the second terminal; or, the target time range is configured by the network device to the second terminal; or , the target time range is preconfigured; or, the target time range is predefined by a communication protocol.

In an optional design of this implementation, the target time range is a continuous time unit or a discontinuous time unit.

In an optional design of this implementation, the starting point of the target time range is determined by the starting position X of the activation time period;

Or, the end point of the target time range is determined by the starting position X of the activation time period.

In an optional design of this implementation, the target time range includes: taking the Mth time slot before the start position X as a reference point, N time slots consecutive backwards; or, starting from the The Mth time slot before the starting position X is used as a reference point, and N consecutive time slots are forward; or, taking the starting position X as a reference point, K consecutive time slots are backward; or, using the above The starting position X is the reference point, the forward continuous K time slots; or, taking the starting position X as the reference point, part of the forward continuous L time slots, the partial time slots are The time slot corresponding to the bit with the first value in the L time slot in the bitmap with a length of L; or, taking the starting position X as a reference point, in the backward consecutive L time slots Partial time slots, where the partial time slots are the time slots corresponding to the bit with the first value in the L time slots in the length-L bitmap.

In an optional design of this implementation, at least one of the M, N, K, L and the bitmap: configured by the first terminal to the second terminal; or, configured by the network device configured to the second terminal; or, pre-configured; or, predefined by a communication protocol.

In an optional design of this implementation, the wake-up signal is used to instruct sidelink signal detection to be performed in subsequent T1 activation time periods.

In an optional design of this implementation, the T1 is configured from the first terminal to the second terminal; or, the T1 is configured from the network device to the second terminal; or, the T1 is preconfigured; or, the T1 is predefined by a communication protocol.

In an optional design of this implementation, the dormancy signal is used to indicate that sidelink signal detection is not to be performed in subsequent T2 activation time periods.

In an optional design of this implementation, the T2 is configured from the first terminal to the second terminal; or, the T2 is configured from the network device to the second terminal; or, the T2 is preconfigured; or, the T2 is predefined by a communication protocol.

Fig. 16 shows a block diagram of a signal receiving device provided by an exemplary embodiment of the present application, the device includes:

The receiving module 710 is configured for the second terminal to receive a wake-up or sleep signal sent by the first device within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.

In an optional design of this implementation, the first device is a first terminal, and sidelink communication is used between the first terminal and the second terminal, and the receiving module 710 is configured to: The second terminal receives the wake-up or sleep signal sent by the first device on the first time-frequency resource within the target time range;

Wherein, the first time-frequency resource is determined by the first terminal within the target time range based on the scheduling information sent by the network device.

In an optional design of this implementation, the first time-frequency resource is: PSCCH; or, PSCCH and PSSCH; or, PSFCH.

In an optional design of this implementation, the wake-up or dormancy signal is: the format of the first sideline control information, and the first sideline control information is the sideline control information carried in the PSCCH; or, the second sideline control information A row control information format, the second side row control information is the side row control information carried in the PSSCH; or, a sequence-based signal.

In an optional design of this implementation, the first device is a network device; the receiving module 710 is configured to:

The second terminal receives the wake-up signal sent by the network device at the second time-frequency resource within the target time range, and the wake-up signal is that the network device receives the second SR sent by the first terminal and/or or sent in case of a second BSR;

And/or, the second terminal receives the dormancy signal sent by the network device at the second time-frequency resource within the target time range, and the dormancy signal is that the network device does not receive the first terminal sent in the absence of the second SR and/or the second BSR.

In an optional design of this implementation, the second time-frequency resource is: PDCCH.

In an optional design of this implementation, the receiving module 710 is also used to:

The second terminal receives the DRX configuration sent by the first terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during an active time period in the DRX configuration.

In an optional design of this implementation, the device further includes: a detection module 720, configured for the second terminal to perform sidelink chaining in subsequent T1 activation time periods when the second terminal receives the wake-up signal Road signal detection.

In an optional design of this implementation, the detection module 720 is also used to:

When the second terminal receives the dormancy signal, it does not perform sidelink signal detection in subsequent T2 activation time periods.

It should be noted that when the device provided by the above embodiment realizes its functions, it only uses the division of the above-mentioned functional modules as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Fig. 17 shows a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device may include: a processor 801 , a receiver 802 , a transmitter 803 , a memory 804 and a bus 805 .

The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules.

The receiver 802 and the transmitter 803 can be implemented as a transceiver, and the transceiver can be a communication chip.

The memory 804 is connected to the processor 801 through the bus 805; for example, the processor 801 can be implemented as a first IC chip, and the processor 801 and the memory 804 can be jointly implemented as a second IC chip; the first chip or the second chip can be It is an Application Specific Integrated Circuit (ASIC) chip.

The memory 804 may be used to store at least one computer program, and the processor 801 is used to execute the at least one computer program, so as to implement various steps in the foregoing method embodiments.

In addition, the memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random-access memory (Random-Access Memory, RAM) , Read-Only Memory (Read-Only Memory, ROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technology, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.

An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is configured to be executed by a processor of a multi-link device, so as to implement the above signal sending method.

Optionally, the computer-readable storage medium may include: a read-only memory (Read-Only Memory, ROM), a random-access memory (Random-Access Memory, RAM), a solid-state hard drive (Solid State Drives, SSD) or an optical disc. Wherein, the random access memory may include resistive random access memory (Resistance Random Access Memory, ReRAM) and dynamic random access memory (Dynamic Random Access Memory, DRAM).

The embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a multi-link device, it is used to implement the above signal sending method.

An embodiment of the present application also provides a computer program product or computer program, where the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor of the multi-link device reads from the The computer-readable storage medium reads and executes the computer instructions, so as to realize the above signal sending method.

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

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.

The "plurality" mentioned herein means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

In addition, the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps. In some other embodiments, the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers The steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.

Those skilled in the art should be aware that, in the foregoing one or more examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above are only exemplary embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.

Claims

A signal transmission method, characterized in that the method comprises:

The first device sends a wake-up or sleep signal to the second terminal within the target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.
The method according to claim 1, wherein the first device is a first terminal, and the first terminal communicates with the second terminal using a sidelink link, and the method further comprises:

The first terminal receives scheduling information of network equipment;

The first device sends a wake-up or sleep signal to the second terminal within the target time range, including:

The first terminal sends the wake-up or sleep signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information within the target time range.
The method according to claim 2, further comprising:

The first terminal sends a first scheduling request SR and/or a first buffer status report BSR to the network device, where the first SR or the first BSR is used to request the network device to send the scheduling information.
The method according to claim 2, wherein the first time-frequency resource is:

Physical sidelink control channel PSCCH;

Or, PSCCH and physical sidelink shared channel PSSCH;

Or, the physical sidelink feedback channel PSFCH.
The method according to claim 4, wherein when the first time-frequency resources are PSCCH and PSSCH, the wake-up or dormancy signal is carried in PSCCH or PSSCH.
The method according to claim 5, wherein the wake-up or dormancy signal is carried in the PSCCH,

The PSSCH carries second side row control information and padding data;

Or, the PSSCH only carries padding data;

Or, the PSSCH only carries the second sideline control information;

Or, the PSSCH carries the second sidelink control information and the data to be transmitted of the first terminal.
The method according to claim 2, wherein the wake-up or sleep signal is:

Format of the first sideline control information, where the first sideline control information is sideline control information carried in the PSCCH;

Or, the format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

Or, sequence-based signals.
The method according to claim 1, wherein the first device is a network device; and the first device sends a wake-up or sleep signal to the second terminal within a target time range, comprising:

When the network device receives the second SR and/or the second BSR sent by the first terminal, send the wake-up signal to the second terminal on a second time-frequency resource within the target time range;

and / or,

When the network does not receive the second SR and/or the second BSR sent by the first terminal, the second time-frequency resource within the target time range sends the dormancy message to the second terminal. Signal.
The method according to claim 8, wherein the second time-frequency resource is: a Physical Downlink Control Channel (PDCCH).
The method according to claim 8, wherein the wake-up or sleep signal is in the form of downlink control information.
The method according to any one of claims 2 to 10, further comprising:

The first terminal sends a discontinuous reception DRX configuration to the second terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during the active time period in the DRX configuration .
The method according to any one of claims 2 to 10, characterized in that,

The target time range is configured by the first terminal to the second terminal;

Or, the target time range is configured by the network device to the second terminal;

Or, the target time range is preconfigured;

Or, the target time range is predefined by a communication protocol.
The method according to any one of claims 1 to 10, wherein the target time range is a continuous time unit or a discontinuous time unit.
The method according to claim 11, characterized in that,

The starting point of the target time range is determined by the starting position X of the activation time period;

or,

The end point of the target time range is determined by the starting position X of the activation time period.
The method according to claim 14, wherein the target time range comprises:

Taking the Mth time slot before the starting position X as a reference point, consecutive N time slots backward;

Or, taking the Mth time slot before the start position X as a reference point, N consecutive forward time slots;

Or, taking the starting position X as a reference point, consecutive K time slots backward;

Or, taking the starting position X as a reference point, K consecutive forward time slots;

Or, using the starting position X as a reference point, some time slots in the forward continuous L time slots, the part time slots are the bits with the first value in the bitmap with a length of L A corresponding time slot in the L time slots;

Or, using the starting position X as a reference point, part of the consecutive L time slots backwards, the part of the time slots is the bit with the first value in the bitmap with a length of L. Corresponding time slots in the above L time slots.
The method according to claim 15, wherein at least one of said M, N, K, L and bitmap:

configured by the first terminal to the second terminal;

Or, configured by the network device to the second terminal;

or, is pre-configured;

Or, predefined by the communication protocol.
The method according to any one of claims 1 to 10, characterized in that,

The wake-up signal is used to instruct sidelink signal detection to be performed in subsequent T1 activation time periods.
The method according to claim 17, characterized in that,

The T1 is configured from the first terminal to the second terminal;

Or, the T1 is configured by the network device to the second terminal;

Or, the T1 is pre-configured;

Or, the T1 is predefined by a communication protocol.
The method according to any one of claims 1 to 10, characterized in that,

The dormancy signal is used to indicate that sidelink signal detection is not to be performed in the following T2 activation time periods.
The method of claim 19, wherein,

The T2 is configured from the first terminal to the second terminal;

Or, the T2 is configured by the network device to the second terminal;

Or, the T2 is pre-configured;

Or, the T2 is predefined by a communication protocol.
A signal receiving method, characterized in that the method comprises:

The second terminal receives the wake-up or sleep signal sent by the first device within the target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.
The method according to claim 21, wherein the first device is a first terminal, and sidelink link communication is used between the first terminal and the second terminal, and the second terminal is at the target Receive the wake-up or sleep signal sent by the first device within the time range, including:

The second terminal receives the wake-up or sleep signal sent by the first device on the first time-frequency resource within the target time range;

Wherein, the first time-frequency resource is determined by the first terminal within the target time range based on the scheduling information sent by the network device.
The method according to claim 22, wherein the first time-frequency resource is:

PSCCH;

Or, PSCCH and PSSCH;

Or, PSFCH.
The method according to claim 23, wherein when the first time-frequency resources are PSCCH and PSSCH, the wake-up or dormancy signal is carried in PSCCH or PSSCH.
The method according to claim 24, wherein the wake-up or dormancy signal is carried in the PSCCH,

The PSSCH carries second side row control information and padding data;

Or, the PSSCH only carries padding data;

Or, the PSSCH only carries the second sideline control information;

Or, the PSSCH carries the second sidelink control information and the data to be transmitted of the first terminal.
The method according to claim 22, wherein the wake-up or sleep signal is:

Format of the first sideline control information, where the first sideline control information is sideline control information carried in the PSCCH;

Or, the format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

Or, sequence-based signals.
The method according to claim 21, wherein the first device is a network device; and the second terminal receives the wake-up or sleep signal sent by the first device within the target time range, comprising:

The second terminal receives the wake-up signal sent by the network device at the second time-frequency resource within the target time range, and the wake-up signal is that the network device receives the second SR sent by the first terminal and/or or sent in case of a second BSR;

and / or,

The second terminal receives the dormancy signal sent by the network device at the second time-frequency resource within the target time range, and the dormancy signal is the second time signal sent by the first terminal when the network device has not received the dormancy signal. Sent without SR and/or second BSR.
The method according to claim 27, wherein the second time-frequency resource is: PDCCH.
The method according to claim 27, wherein the wake-up or sleep signal is in the form of downlink control information.
The method according to any one of claims 22 to 29, further comprising:

The second terminal receives the DRX configuration sent by the first terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during an active time period in the DRX configuration.
A method according to any one of claims 22 to 29, wherein,

The target time range is configured by the first terminal to the second terminal;

Or, the target time range is configured by the network device to the second terminal;

Or, the target time range is preconfigured;

Or, the target time range is predefined by a communication protocol.
The method according to any one of claims 21 to 29, wherein the target time range is a continuous time unit or a discontinuous time unit.
The method of claim 30, wherein

The starting point of the target time range is determined by the starting position X of the activation time period;

or,

The end point of the target time range is determined by the starting position X of the activation time period.
The method according to claim 33, wherein the target time range comprises:

Taking the Mth time slot before the starting position X as a reference point, consecutive N time slots backward;

Or, taking the Mth time slot before the start position X as a reference point, N consecutive forward time slots;

Or, taking the starting position X as a reference point, consecutive K time slots backward;

Or, taking the starting position X as a reference point, K consecutive forward time slots;

Or, using the starting position X as a reference point, some time slots in the forward continuous L time slots, the part time slots are the bits with the first value in the bitmap with a length of L A corresponding time slot in the L time slots;

Or, using the starting position X as a reference point, a part of the consecutive L time slots backwards, the part of the time slots is the bit with the first value in the bitmap with a length of L. Corresponding time slots among the L time slots.
The method according to claim 34, wherein at least one of said M, N, K, L and bitmap:

configured by the first terminal to the second terminal;

Or, configured by the network device to the second terminal;

or, is pre-configured;

Or, predefined by the communication protocol.
The method according to any one of claims 21 to 29, further comprising:

When the second terminal receives the wake-up signal, it performs sidelink signal detection in subsequent T1 activation time periods.
The method of claim 36, wherein,

The T1 is configured from the first terminal to the second terminal;

Or, the T1 is configured by the network device to the second terminal;

Or, the T1 is pre-configured;

Or, the T1 is predefined by a communication protocol.
The method according to any one of claims 21 to 29, further comprising:

When the second terminal receives the dormancy signal, it does not perform sidelink signal detection in subsequent T2 activation time periods.
The method of claim 38, wherein,

The T2 is configured from the first terminal to the second terminal;

Or, the T2 is configured by the network device to the second terminal;

Or, the T2 is pre-configured;

Or, the T2 is predefined by a communication protocol.
A signal sending device, characterized in that the device comprises:

A sending module, configured for the first device to send a wake-up or sleep signal to the second terminal within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.
The device according to claim 40, wherein the first device is a first terminal, and sidelink link communication is used between the first terminal and the second terminal, and the device further comprises:

A receiving module, configured for the first terminal to receive scheduling information of network equipment;

The sending module is configured to: the first terminal sends the wake-up or sleep signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information within the target time range.
The device according to claim 41, wherein the sending module is also used for:

The first terminal sends a first SR and/or a first BSR to the network device, where the first SR or the first BSR is used to request the network device to send the scheduling information.
The device according to claim 41, wherein the first time-frequency resource is:

PSCCH; or, PSCCH and PSSCH; or, PSFCH.
The device according to claim 43, wherein when the first time-frequency resources are PSCCH and PSSCH, the wake-up or sleep signal is carried in PSCCH or PSSCH.
The device according to claim 44, wherein the wake-up or sleep signal is carried in the PSCCH,

The PSSCH carries second side row control information and padding data;

Or, the PSSCH only carries padding data;

Or, the PSSCH only carries the second sideline control information;

Or, the PSSCH carries the second sidelink control information and the data to be transmitted of the first terminal.
The device according to claim 41, wherein the wake-up or sleep signal is:

Format of the first sideline control information, where the first sideline control information is sideline control information carried in the PSCCH;

Or, the format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

Or, sequence-based signals.
The device according to claim 40, wherein the first device is a network device; the sending module is used for:

When the network device receives the second SR and/or the second BSR sent by the first terminal, send the wake-up signal to the second terminal on a second time-frequency resource within the target time range;

And/or, when the network does not receive the second SR and/or the second BSR sent by the first terminal, send the second time-frequency resource within the target time range to the second terminal Send the sleep signal.
The device according to claim 47, wherein the second time-frequency resource is: a Physical Downlink Control Channel (PDCCH).
The device according to claim 47, wherein the wake-up or sleep signal is in a downlink control information format.
The device according to any one of claims 41 to 49, wherein the sending module is also used for:

The first terminal sends a discontinuous reception DRX configuration to the second terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during the active time period in the DRX configuration .
Apparatus according to any one of claims 41 to 49, wherein

The target time range is configured by the first terminal to the second terminal;

Or, the target time range is configured by the network device to the second terminal;

Or, the target time range is preconfigured;

Or, the target time range is predefined by a communication protocol.
The device according to any one of claims 40 to 49, wherein the target time range is a continuous time unit or a discontinuous time unit.
The apparatus of claim 50, wherein

The starting point of the target time range is determined by the starting position X of the activation time period;

Or, the end point of the target time range is determined by the starting position X of the activation time period.
The device according to claim 53, wherein the target time range comprises:

Taking the Mth time slot before the starting position X as a reference point, consecutive N time slots backward;

Or, taking the Mth time slot before the start position X as a reference point, N consecutive forward time slots;

Or, taking the starting position X as a reference point, consecutive K time slots backward;

Or, taking the starting position X as a reference point, K consecutive forward time slots;

Or, using the starting position X as a reference point, some time slots in the forward continuous L time slots, the part time slots are the bits with the first value in the bitmap with a length of L A corresponding time slot in the L time slots;

Or, using the starting position X as a reference point, a part of the consecutive L time slots backwards, the part of the time slots is the bit with the first value in the bitmap with a length of L. Corresponding time slots among the L time slots.
The device according to claim 54, wherein at least one of said M, N, K, L and bitmap:

Configured by the first terminal to the second terminal; or configured by the network device to the second terminal; or pre-configured; or predefined by a communication protocol.
Apparatus according to any one of claims 40 to 49 wherein,

The wake-up signal is used to instruct sidelink signal detection to be performed in subsequent T1 activation time periods.
The apparatus according to claim 56, wherein the T1 is configured from the first terminal to the second terminal; or, the T1 is configured from the network device to the second terminal; or, The T1 is preconfigured; or, the T1 is predefined by a communication protocol.
Apparatus according to any one of claims 40 to 49 wherein,

The dormancy signal is used to indicate that sidelink signal detection is not to be performed in the following T2 activation time periods.
The apparatus according to claim 58, wherein the T2 is configured from the first terminal to the second terminal; or, the T2 is configured from the network device to the second terminal; or, The T2 is preconfigured; or, the T2 is predefined by a communication protocol.
A signal receiving device, characterized in that the device comprises:

The receiving module is configured for the second terminal to receive a wake-up or sleep signal sent by the first device within a target time range, where the wake-up or sleep signal is used to indicate whether the second terminal performs sidelink signal detection.
The device according to claim 60, wherein the first device is a first terminal, sidelink communication is used between the first terminal and the second terminal, and the receiving module is used for:

The second terminal receives the wake-up or sleep signal sent by the first device on the first time-frequency resource within the target time range; wherein the first time-frequency resource is the first terminal It is determined within the target time range based on the scheduling information sent by the network device.
The device according to claim 61, wherein the first time-frequency resource is:

PSCCH; or, PSCCH and PSSCH; or, PSFCH.
The device according to claim 62, wherein when the first time-frequency resources are PSCCH and PSSCH, the wake-up or sleep signal is carried in PSCCH or PSSCH.
The device according to claim 63, wherein the wake-up or sleep signal is carried in the PSCCH,

The PSSCH carries second side row control information and padding data;

Or, the PSSCH only carries padding data;

Or, the PSSCH only carries the second sideline control information;

Or, the PSSCH carries the second sidelink control information and the data to be transmitted of the first terminal.
The device according to claim 61, wherein the wake-up or sleep signal is:

Format of the first sideline control information, where the first sideline control information is sideline control information carried in the PSCCH;

Or, the format of the second sideline control information, where the second sideline control information is the sideline control information carried in the PSSCH;

Or, sequence-based signals.
The device according to claim 60, wherein the first device is a network device; the receiving module is used for:

The second terminal receives the wake-up signal sent by the network device at the second time-frequency resource within the target time range, and the wake-up signal is that the network device receives the second SR sent by the first terminal and/or or sent in the case of a second BSR;

And/or, the second terminal receives the dormancy signal sent by the network device at the second time-frequency resource within the target time range, and the dormancy signal is that the network device does not receive the first terminal sent in the absence of the second SR and/or the second BSR.
The device according to claim 66, wherein the second time-frequency resource is: PDCCH.
The device according to claim 66, wherein the wake-up or sleep signal is in a downlink control information format.
The device according to any one of claims 61 to 68, wherein the receiving module is also used for:

The second terminal receives the DRX configuration sent by the first terminal, and the wake-up or dormancy signal is used to indicate whether the second terminal performs sidelink signal detection during an active time period in the DRX configuration.
Apparatus according to any one of claims 61 to 68, wherein

The target time range is configured by the first terminal to the second terminal; or, the target time range is configured by the network device to the second terminal; or, the target time range is preconfigured ; or, the target time range is predefined by a communication protocol.
The device according to any one of claims 60 to 68, wherein the target time range is a continuous time unit or a discontinuous time unit.
The apparatus of claim 69 wherein,

The starting point of the target time range is determined by the starting position X of the activation time period;

Or, the end point of the target time range is determined by the starting position X of the activation time period.
The device according to claim 72, wherein the target time range comprises:

Taking the Mth time slot before the starting position X as a reference point, consecutive N time slots backward;

Or, taking the Mth time slot before the start position X as a reference point, N consecutive forward time slots;

Or, taking the starting position X as a reference point, consecutive K time slots backward;

Or, taking the starting position X as a reference point, K consecutive forward time slots;

Or, using the starting position X as a reference point, some time slots in the forward continuous L time slots, the part time slots are the bits with the first value in the bitmap with a length of L A corresponding time slot in the L time slots;

Or, using the starting position X as a reference point, a part of the consecutive L time slots backwards, the part of the time slots is the bit with the first value in the bitmap with a length of L. Corresponding time slots in the above L time slots.
The device according to claim 73, wherein at least one of said M, N, K, L and bitmap:

Configured by the first terminal to the second terminal; or configured by the network device to the second terminal; or pre-configured; or predefined by a communication protocol.
The device according to any one of claims 60 to 68, wherein the device further comprises:

The detection module is configured for the second terminal to perform sidelink signal detection in subsequent T1 activation time periods when the second terminal receives the wake-up signal.
The device according to claim 75, wherein the T1 is configured from the first terminal to the second terminal; or, the T1 is configured from the network device to the second terminal; or, The T1 is preconfigured; or, the T1 is predefined by a communication protocol.
The device according to any one of claims 60 to 68, wherein the detection module is also used for:

When the second terminal receives the dormancy signal, it does not perform sidelink signal detection in subsequent T2 activation time periods.
The apparatus according to claim 77, wherein the T2 is configured from the first terminal to the second terminal; or, the T2 is configured from the network device to the second terminal; or, The T2 is preconfigured; or, the T2 is predefined by a communication protocol.
A communication device, characterized in that the communication device includes a processor and a memory, and there is at least one program in the memory; the processor is configured to execute the at least one program in the memory to realize the above-mentioned The signal sending method according to any one of claims 1 to 20, or the signal receiving method according to any one of claims 21 to 39 above.
A computer-readable storage medium, wherein a computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the signal transmission method according to any one of claims 1 to 20 , or the signal receiving method described in any one of claims 21 to 39.
A chip, characterized in that the chip includes programmable logic circuits and/or program instructions, which are used to implement the signal transmission method according to any one of claims 1 to 20 when the chip is running, or the above-mentioned rights The signal receiving method described in any one of 21 to 39 is required.
A computer program product or computer program, characterized in that the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads the computer-readable storage medium from the computer-readable storage medium And execute the computer instructions to realize the signal sending method described in any one of claims 1 to 20 above, or the signal receiving method described in any one of claims 21 to 39 above.