CN117813781A

CN117813781A - Signal transmitting method, signal receiving method apparatus, device, and storage medium

Info

Publication number: CN117813781A
Application number: CN202180101296.4A
Authority: CN
Inventors: 丁伊; 赵振山; 林晖闵
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2024-04-02
Also published as: WO2023060447A1

Abstract

The application discloses a signal sending method, a signal receiving method, a device, equipment and a storage medium, and relates to the field of mobile communication. The method comprises the following steps: the first device transmits a wake-up or sleep signal to the second terminal within a target time range, wherein the wake-up or sleep signal is used for indicating whether the second terminal performs side-link signal detection. According to the technical scheme provided by the embodiment of the application, the wake-up or sleep signal is introduced to indicate whether the terminal detects the side link signal in the activation time period, so that a control mechanism of the terminal for detecting the side link signal is enriched, whether the wake-up or sleep signal detects the side link signal is associated with whether the side link data exists or not, the problem that the side link signal is detected in the activation time period under the condition that the side link data is not transmitted is avoided, and unnecessary power consumption is saved.

Description

Signal transmitting method, signal receiving method apparatus, device, and storage medium

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a signal transmitting method, a signal receiving method, a device, equipment, and a storage medium.

Background

Unlike conventional cellular systems in which communication data is received or transmitted through access network devices, sidelink (SL) transmission refers to communication data transmission between terminals directly through Sidelink.

A discontinuous reception (Discontinuous Reception, DRX) mechanism is introduced in SL transmission, and by setting an active period (On Duration) and a DRX Cycle (Cycle), the detection of a side-link signal can be performed during the active period, and power consumption caused by continuously performing the detection of the side-link signal can be saved.

However, in the case where no sidelink data is transmitted during the active period, signal detection of the sidelink may still cause unnecessary power consumption.

Disclosure of Invention

The embodiment of the application provides a signal sending method, a signal receiving method, a device, equipment and a storage medium. The technical scheme is as follows:

according to an aspect of an embodiment of the present application, there is provided a signal transmission method, including:

the first device transmits a wake-up or sleep signal to the second terminal within a target time range, wherein the wake-up or sleep signal is used for indicating whether the second terminal performs side-link signal detection.

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

And the second terminal receives a wake-up or sleep signal sent by the first device in a target time range, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects a side uplink signal or not.

According to another aspect of the embodiments of the present application, there is provided a signal transmitting apparatus, the apparatus including:

and the sending module is used for sending a wake-up or sleep signal to the second terminal in the target time range by the first equipment, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects the side uplink signal or not.

According to another aspect of the embodiments of the present application, there is provided an information receiving apparatus including:

and the receiving module is used for receiving the wake-up or sleep signal sent by the first equipment within the target time range by the second terminal, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects the side uplink signal or not.

According to another aspect of the embodiments of the present application, there is provided a communication apparatus including a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement 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 having stored therein a computer program for execution by a processor to implement the above-described signal transmission method and/or signal reception method.

According to another aspect of embodiments of the present application, a chip is provided, which includes programmable logic circuits and/or program instructions for implementing the above-described signal transmission method and/or signal reception method when the chip is running.

According to another aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium, from which a processor reads and executes the computer instructions to implement the above-mentioned signal transmission method and/or signal reception method.

The technical scheme provided by the embodiment of the application can bring the following beneficial effects:

by introducing a wake-up or sleep signal to indicate whether the terminal detects the side link signal in the active time period, the control mechanism of the terminal for detecting the side link signal is enriched, and the wake-up or sleep signal links whether the side link signal is detected with whether the side link data exists, so that the problem that the side link signal is detected in the active time period under the condition that the side link data is not transmitted is avoided, and unnecessary power consumption is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

fig. 2 is a schematic diagram of an SL communication network architecture within a network overlay;

fig. 3 is a schematic diagram of a partial network overlay SL communication network architecture;

fig. 4 is a schematic diagram of a SL communication network architecture outside of the network coverage;

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

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

FIG. 7 is a flow chart of a signal transmission/reception method provided in one embodiment of the present application;

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

fig. 9 is a flowchart of a signal transmission/reception method provided in one embodiment of the present application;

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

FIG. 11 is a flow chart of a signal transmission/reception method provided in one embodiment of the present application;

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

fig. 13 is a flowchart of a signal transmission/reception method provided in one embodiment of the present application;

fig. 14 is a flowchart of a signal transmission/reception method provided in one embodiment of the present application;

FIG. 15 is a block diagram of a signaling device provided in one embodiment of the present application;

fig. 16 is a block diagram of a signal receiving apparatus provided in one embodiment of the present application;

fig. 17 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

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

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is 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 be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or 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 this disclosure to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first parameter may also be referred to as a second parameter, and similarly, a second parameter may also be referred to as a first parameter, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

The internet of vehicles communications include vehicle-to-vehicle (Vehicle to Vehicle, V2V) communications, vehicle-to-road side infrastructure (Vehicle to Infrastructure, V2I) communications, and vehicle-to-pedestrian (Vehicle to People, V2P) communications. Through supporting V2V communication, V2I communication and V2P communication, the car networking can effectively promote traffic safety, improves traffic efficiency and richens the trip experience.

The existing cellular communication technology is utilized to support the Internet of vehicles communication, so that deployed base stations can be effectively utilized, the equipment cost is reduced, and the service with the guarantee of service quality (Quality of Service, qoS) is provided, so that the requirement of Internet of vehicles service can be met.

In R14 (Release 14)/R15 (Release 15) of long term evolution (Long Term Evolution, LTE), support for internet of vehicles communication over Cellular networks, specifically Cellular based V2X, C-V2X technologies, is implemented. In C-V2X, communications between an on-board device (e.g., an on-board terminal) and other devices may be relayed through a base station and a core network device, that is, communications between the on-board device and other devices (including UpLink (UL) communications and DownLink (DL) communications) are implemented using a communication link between a terminal and a base station in an existing cellular network. The in-vehicle devices and other devices may also communicate directly over a direct link (also known as a sidelink) between the devices.

Side-link communication is a device-to-device communication scheme with high spectral efficiency and low transmission delay. The side-link has two transmission modes, the first being: the network device allocates transmission resources for the terminal (vehicle-mounted device), and the terminal performs data transmission of the side uplink on the allocated transmission resources. The second transmission mode is: the network equipment allocates a resource pool for the terminal, and the terminal automatically selects one or more transmission resources in the resource pool to perform data transmission of the side uplink. The terminal may select the transmission resource in the resource pool by listening, or may select the transmission resource in the resource pool by randomly selecting. Compared with Uu interface communication, the side link communication has the characteristics of short time delay, low cost and the like, and is very suitable for direct communication between the vehicle-mounted equipment and other peripheral equipment with close geographic positions.

With the development of 5G mobile communication technology, support for services and scenarios for New internet of vehicles communication using a 5G New Radio (NR) technology, such as support for fleet management (Vehicles Platooning), extended sensing (Extended sensing), advanced Driving (Advanced Driving), remote Driving (Remote Driving), etc., is proposed in R16 of the third generation partnership project (3rd Generation Partnership Project,3GPP). Overall, 5g v2x sidelink can provide higher communication rates, shorter communication delays, and more reliable communication quality.

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

The core network 11 includes a plurality of core network devices. The core network device mainly has the functions of providing user connection, managing users and carrying out service, and is used as an interface for providing a bearing network to an external network. For example, the core network of the fifth generation mobile communication technology (5th Generation,5G) NR system may include devices such as an access and mobility management function (Access and Mobility Management Function, AMF) entity, a user plane function (User Plane Function, UPF) entity, and a session management function (Session Management Function, SMF) entity.

Access network 12 includes a number of access network devices 14 therein. The access network in the 5G NR system may be referred to as a New Generation radio access network (NG-RAN). Access network device 14 is a means deployed in access network 12 to provide wireless communication functionality for terminal 13. The access network devices 14 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. The names of access network device-capable devices may vary in systems employing different radio access technologies, for example in 5G NR systems, called 5G base stations (Next Generation Node B, gndeb or gNB). As communication technology evolves, the name "access network device" may change. For convenience of description, in the embodiment of the present disclosure, the above-mentioned devices for providing the terminal 13 with a wireless communication function are collectively referred to as an access network device.

The number of terminals 13 is typically a plurality and one or more terminals 13 may be distributed within the cell managed by each access network device 14. The terminal 13 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment, mobile Stations (MSs), and the like, having wireless communication capabilities. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. The access network device 14 and the core network device communicate with each other via some over-the-air technology, such as the NG interface in a 5G NR system. The access network device 14 and the terminal 13 communicate with each other via some over-the-air technology, e.g. the Uu interface.

The terminal 13 and the terminal 13 (for example, the vehicle-mounted device and other devices (such as other vehicle-mounted devices, mobile phones, road Side Units (RSUs)) may communicate with each other through a direct communication interface (such as a PC5 interface), and accordingly, a communication link established based on the direct communication interface may be referred to as a direct link or SL. The SL transmission is that communication data transmission is directly performed between terminals through a side uplink, and is different from the traditional cellular system in which communication data is received or transmitted through an access network device, and the SL transmission has the characteristics of short time delay, low cost and the like, and is suitable for communication between two terminals with geographic positions close to each other (such as a vehicle-mounted device and other peripheral devices with geographic positions close to each other). In fig. 1, only vehicle-to-vehicle communication in a V2X scene is taken as an example, and the SL technology can be applied to a scene in which communication is directly performed between various terminals. Or, the terminal in the present application refers to any device that communicates using SL technology.

The "5G NR system" in the embodiments of the present disclosure may also be referred to as a 5G system or an NR system, but a person skilled in the art may understand the meaning thereof. The technical scheme described in the embodiment of the disclosure can be applied to a 5G NR system and also can be applied to a subsequent evolution system of the 5G NR system.

The UE and the terminal in the embodiment of the present disclosure express the same meaning, and the two may be replaced with each other.

In the side uplink communication, network coverage inside communication, partial network coverage side communication, and network coverage outside communication can be classified according to the network coverage situation where the terminal performing the communication is located.

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

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

Fig. 4 shows a schematic diagram of a network out-of-coverage SL communication network architecture. All terminals 13 for performing side line communication are located outside the network coverage area, and all terminals 13 determine side line configuration for side line communication according to the pre-configuration information.

Regarding SL transmission, the 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 a base station), and the terminal transmits communication data on the side link according to the transmission resources allocated by the access network equipment, wherein the access network equipment can allocate the transmission resources of single transmission for the terminal and can allocate the transmission resources of semi-static transmission for the terminal.

Mode B (also known as mode 2 or autonomous selection of resource mode by the UE): the terminal selects transmission resources from the resource pool to transmit communication data. Specifically, the terminal may select transmission resources in the resource pool by listening, or select transmission resources in the resource pool by randomly selecting.

The physical layer structure of SL communication in NR V2X system is shown in fig. 5. A physical sidelink control channel (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. The PSCCH and the PSSCH are transmitted in the same slot. The first side control information and the second side control information may be two side control information having different roles. For example, the first side control information is carried in the PSCCH and mainly includes a domain related to resource interception, so that it is convenient for other terminals to perform resource exclusion and resource selection after decoding. In the PSSCH, besides data, second sidestream control information is carried, and the second sidestream control information mainly comprises a domain related to data demodulation, so that other terminals can conveniently demodulate the data in the PSSCH.

In the NR V2X system, in the above mode B, the terminal autonomously selects a transmission resource to transmit data. The resource reservation is a precondition for the selection of resources.

The resource reservation refers to that the terminal transmits the first sidelink control information in the PSCCH to reserve the resources to be used next. In NR V2X systems, resource reservation within Transport Blocks (TBs) is supported as well as resource reservation between TBs.

Next, a description is given of a DRX mechanism:

in a wireless network, a User Equipment (UE) is required to monitor a physical downlink control channel (Physical Downlink Control Channel, PDCCH) all the time, and transmit and receive data according to an indication message sent by a network side, so that power consumption of the UE and delay of data transmission are both relatively large. The 3GPP standard protocol therefore starts to introduce discontinuous reception mechanism (Discontinuous Reception, DRX) power saving policies in LTE systems.

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

In DRX operation, the terminal controls the terminal to be in an active state or a sleep state according to some timer parameters of the network configuration.

For example, the length of the active period is indicated by a DRX-onduration timer parameter, and the start position of the DRX cycle is indicated by a DRX-longcycletartoffset parameter and a DRX-SlotOffset parameter. And the terminal starts a timer with the length of a value indicated by the DRX-onduration timer parameter at the starting position of the DRX cycle according to the above parameters, and keeps an active state until the timer is reduced to 0.

If the terminal detects the PDCCH before the terminal decreases to 0 in the active period, i.e., on duration timer, the terminal also starts a timer such as an Inactivity timer, a retransmission (Re-transmission) timer, etc. to extend the active state for receiving scheduled data or retransmission.

Fig. 6 shows a schematic diagram of a DRX cycle, one DRX cycle 11 comprising an active period 12 and a DRX opportunity 13.

Fig. 7 provides a flowchart of a signal transmission/reception method according to an embodiment of the present application, where a first device may be implemented by an access network device or a terminal shown in fig. 1, and a second terminal may be implemented by a terminal shown in fig. 1, and the method includes:

step 502: the first equipment sends a wake-up or sleep signal to the second terminal in a target time range;

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

The wake-up or sleep signal is used to indicate whether the second terminal is performing side-uplink signal detection. Illustratively, the wake-up signal is for instructing the second terminal to perform side-uplink signal detection; the sleep signal is used to indicate that the second terminal is not performing side-downlink signal detection.

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

the wake-up or sleep signal is used to indicate whether the second terminal is performing side-uplink signal detection. Illustratively, the second terminal performs side-link signal detection upon receipt of the wake-up signal. The second terminal does not perform side-link signal detection in the case of receiving the sleep signal.

In summary, the method provided in this embodiment enriches the control mechanism of the terminal for detecting the sidelink signal by introducing the wake-up or sleep signal to indicate whether the terminal detects the sidelink signal, and the wake-up or sleep signal links whether the terminal detects the sidelink signal with whether there is sidelink data, so that the problem that the terminal detects the sidelink signal in the active period under the condition that there is no sidelink data transmission is avoided, and unnecessary power consumption is saved.

Next, a description is given of a target time range in the embodiment of the present application:

in the present application, the method of configuring the target time range includes, but is not limited to, any one of the following:

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

illustratively, the first terminal configures the target time range to the second terminal via the PC5 interface using PC 5-radio resource control (Radio Resource Control, RRC). The target time range configured by the first terminal to the second terminal can be configured independently by the first terminal or 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;

for example, in the case that the second terminal is within the coverage of the network device, the network device configures the target time range to the second terminal. Optionally, the network device configures the same target time range to the first terminal and the second terminal simultaneously.

The target time range is preconfigured;

the preconfigured target time range may be one or a plurality of target time ranges, and the application does not limit any limitation.

The target time range is predefined by the communication protocol.

The predefined target time range of the communication protocol may be one or more, and the application is not limited in any way.

In the present application, no limitation is made to the method of configuring the target time range.

The target time range may be a continuous time unit or a discontinuous time unit.

Next, description will be made of a case where the first device is the first terminal, which is described in the embodiment shown in fig. 7; fig. 8 is a schematic diagram of an SL communication network architecture in which a first terminal according to an embodiment of the present application transmits a wake-up or sleep signal. The network device 14 transmits scheduling information to the first terminal 131, and the first terminal 131 transmits 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 11, the first device is a first terminal. Illustratively, a side-link communication is employed between the first terminal and the second terminal. The first terminal and the second terminal can communicate through a PC5 interface. Optionally, unicast data is transmitted between the first terminal and the second terminal.

Illustratively, there is an RRC Connected (Connected) state between the first terminal and the network device. The state between the second terminal and the network device includes, but is not limited to, any of the following: RRC Connected (Connected) state, RRC Idle (Idle) state, RRC Inactive (Inactive) state. The second terminal is typically within the coverage of the network device, but this does not exclude the case that the second terminal is not within the coverage of the network device.

For the case that the first device is the first terminal, description is made of a case that there is sidestream data to be transmitted, that is, a case that the first terminal sends a first SR and/or a first BSR to the network device:

fig. 9 provides a flowchart of a signal transmitting/receiving method according to an embodiment of the present application, where a network device in the method may be executed by an access network device shown in fig. 1, and a first terminal and a second terminal may be executed by a terminal shown in fig. 1, where the method includes:

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

the wake-up or sleep signal is used to indicate whether the second terminal is performing side-uplink signal detection during an active period in the DRX configuration. Illustratively, the activation period includes a period corresponding to an activation period (On Duration) timer.

Exemplary parameters of the DRX configuration include, but are not limited to, at least one of:

parameters indicating an activation period timer;

a parameter indicating an Inactivity timer;

a parameter indicating a HARQ Round Trip Time (RTT) timer;

a parameter indicating a retransmission (Re-transmission) timer;

a parameter indicating the DRX cycle length;

a parameter indicating the DRX cycle start position.

Optionally, the second terminal sends the auxiliary information to the first terminal. The assistance information is used to determine or suggest a DRX configuration of the second terminal, and illustratively, the assistance information includes parameters used to determine or suggest a DRX configuration of the second terminal.

Optionally, after receiving the auxiliary information, the first terminal reports the auxiliary information to the network device. Configuration information of the DRX configuration is generated by the network device according to the assistance 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 period in the DRX configuration or may be unrelated to the active period in the DRX configuration.

Exemplary relationships of the target time range to the activation time period include, but are not limited to:

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

or, the end of the target time range is determined by the start position X of the activation period.

As shown in fig. 10, relation 1 shows a case where the start point of the target time range is determined by the start position X of the activation period, the start point of the target time range being the start position X of the activation period. Relationship 2 shows a case where the end of the target time range is determined by the start position X of the activation period, the end of the target time range being the 5 th slot before the start position X of the activation period.

Exemplary, target time ranges include, but are not limited to, any of the following:

taking the Mth time slot before the starting position X as a reference point, and N time slots which are backwards continuous;

taking the Mth time slot before the starting position X as a reference point, N time slots which are continuous forwards;

k time slots which are continuous backwards by taking the starting position X as a reference point;

k consecutive forward time slots with the start position X as reference point;

taking the starting position X as a reference point, and forward connecting partial time slots in L time slots, wherein the partial time slots are corresponding time slots in the L time slots of the bit map with the length of L and provided with first values;

taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are corresponding time slots of L time slots of bits with a first value in a bit bitmap with the length of L.

In various embodiments of the present application, forward represents a temporal position direction in which the temporal position is earlier than the reference point; likewise, backward indicates a temporal position direction in which the temporal position is later than the reference point.

The configuration method of at least one of M, N, K, L and the bit map includes, but is not limited to, any one of the following:

configuration by the first terminal to the second terminal;

Illustratively, the first terminal is configured to the second terminal via the PC5 interface using PC 5-RRC. The configuration of the first terminal to the second terminal may be configured independently by the first terminal, or may be configured by the first terminal according to configuration information sent by the network device.

Configuration by the network device to the second terminal;

the network device is illustratively configured to the second terminal in the event that the second terminal is within a coverage area of the network device.

Is preconfigured;

the content of the pre-configuration may be one or more, and the present application is not limited in any way.

Predefined by the communication protocol.

The predefined content of the communication protocol may be one or more, and the application is not limited in any way.

Optionally, in the case that the second terminal is within the coverage area of the network device, the second terminal reports the DRX configuration to the network device.

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

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

The first terminal may send the first SR and the first BSR to the network device, or may send only the first SR or the first BSR to the network device.

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

the network equipment receives a first SR and/or a 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. The first SR and the second SR may be the same or different in various embodiments of the present application; likewise, the first BSR and the second BSR may be the same or different.

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

the scheduling information is used for scheduling transmission resources. And under the condition that the network equipment receives the first SR and/or the first BSR, the scheduling information is used for scheduling the first time-frequency resource and/or the third time-frequency resource.

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

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 may be sent in one scheduling information or may be sent in multiple scheduling information respectively. In this embodiment, the scheduling information is used to schedule 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, and in other embodiments of the present application, the first time-frequency resource may also be used for the first terminal to send a sleep signal to the second terminal.

The third time-frequency resource is used for the first terminal to send the sidestream data to the second terminal. I.e. sidestream data requested to be sent by the first SR. In various embodiments of the present application, the third time-frequency resource may or may not be in the active period, which is not limited in any way. Optionally, the third time-frequency resource includes at least one time-frequency resource located 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 various embodiments of the present application, the number of the first time-frequency resources may be one or more. Likewise, in various embodiments of the present application, the number of the second time-frequency resources and/or the third time-frequency resources may be one or more.

Step 522: the method comprises the steps that a first terminal receives scheduling information of network equipment and determines a first time-frequency resource and a 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. And the third time-frequency resource is used for the first terminal to send the sidestream data to the second terminal.

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

physical sidelink control channel (Physical Sidelink Control Channel, PSCCH);

physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH).

PSCCH and physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH);

optionally, in various embodiments of the present application, the wake-up or sleep signal is carried in a PSCCH or PSSCH;

further alternatively, in the case where the wake-up or sleep signal is carried in a PSCCH, the information carried by the PSCCH includes, but is not limited to, any of the following:

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

or, PSSCH only carries padding data;

or, PSSCH only carries second sidestream control information;

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

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

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

The first time-frequency resource is determined by the first terminal in a target time range based on scheduling information sent by the network equipment; that is, the first terminal transmits a wake-up signal to the second terminal based on a first time-frequency resource scheduled by the scheduling information within a target time range.

Exemplary formats of wake-up signals include, but are not limited to, any of the following:

a first sidelink control information format, the first sidelink control information being sidelink control information carried in the PSCCH;

a second sidelink control information format, the second sidelink control information being sidelink control information carried in the PSSCH;

sequence-based signals.

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

Step 526: the second terminal detects a side uplink signal in the following T1 activation time periods;

exemplary, the side-links for signal detection by the second terminal include, but are not limited to, at least one of: PSCCH, PSSCH.

Illustratively, 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 by the first terminal to the second terminal;

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

T1 is preconfigured;

T1 is predefined by the communication protocol.

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

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

the third time-frequency resource is determined by the first terminal based on scheduling information transmitted by the network device. That is, the first terminal transmits side line data to the second terminal in a third time-frequency resource scheduled based on the scheduling information. Optionally, the third time-frequency resource includes at least one time-frequency resource located within the activation time period.

In summary, in the method provided in this embodiment, the wake-up signal is introduced to instruct the terminal to perform sidelink signal detection, which associates the sidelink signal detection with the presence of sidelink data, and the first terminal sends the wake-up signal to the second terminal, so that the second terminal performs sidelink signal detection in the active period only when there is sidelink data transmission, thereby saving unnecessary power consumption.

For the case that the first device is the first terminal, description is made of a case that there is no sidestream data to be transmitted, that is, a case that the first terminal does not send the first SR and/or the first BSR to the network device: fig. 11 provides a flowchart of a signal transmission/reception method according to an embodiment of the present application, where a network device in the method may be executed by an access network device shown in fig. 1, and a first terminal and a second terminal may be executed by a terminal shown in fig. 1, where the method includes:

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

this step may refer to step 512 in the above embodiment, and will not be described in detail in this embodiment.

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

this step may refer to step 514 in the above embodiment, and will not be described in detail in this embodiment.

Step 536: the network equipment sends scheduling information to a first terminal;

the scheduling information is used for scheduling transmission resources. Illustratively, in this embodiment, the scheduling information is used to schedule the first time-frequency resource. That is, in case that the network device does not receive the first SR and/or the first BSR transmitted 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 a sleep signal to the second terminal.

Step 538: the method comprises the steps that a first terminal receives scheduling information of network equipment and determines first time-frequency resources;

the first time-frequency resource is determined by the first terminal in a target time range based on scheduling information sent by the network equipment; the first time-frequency resource is used for the first terminal to send a sleep signal to the second terminal.

The description of the first time-frequency resource may refer to step 522 in the above embodiment, which is not described in detail in this embodiment.

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

the first time-frequency resource is determined by the first terminal in a target time range based on scheduling information sent by the network equipment; that is, the first terminal transmits a sleep signal to the second terminal based on a first time-frequency resource scheduled by the scheduling information within a target time range.

Exemplary formats of sleep signals include, but are not limited to, any of the following:

sequence-based signals.

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

Step 542: the second terminal does not detect the side uplink signal in the following T2 activation time periods;

exemplary, side links where the second terminal does not perform signal detection include, but are not limited to, at least one of: PSCCH, PSSCH.

Illustratively, 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 by the first terminal to the second terminal;

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

T2 is preconfigured;

T2 is predefined by the communication protocol.

Optionally, at the time when the second terminal receives the sleep signal, the time is within the range of the active time periods, where the T2 active time periods in this embodiment include the current active time period.

In summary, in the method provided in this embodiment, the introduction of the sleep signal indicates that the terminal does not perform sidelink signal detection, and associates the non-sidelink signal detection with the absence of sidelink data, so that the first terminal sends the sleep signal to the second terminal, thereby avoiding the problem that the sidelink signal detection is performed in the active period under the condition that there is no sidelink data transmission, and saving unnecessary power consumption.

Next, description will be made of a case where the first device is a network device, which is described in the embodiment shown in fig. 7; fig. 12 is a schematic diagram of an SL communication network architecture in which a network device according to an embodiment of the present application transmits a wake-up or sleep signal. The network device 14 sends a wake-up signal or a sleep signal to the second terminal 132 and the first terminal 131 sends sidestream data to the second terminal 132 according to the network device 14 schedule.

The first device is a network device in the embodiments of the present application provided in fig. 13, 14. Illustratively, a side-link communication is employed between the first terminal and the second terminal. The first terminal and the second terminal can communicate through a PC5 interface. Optionally, unicast data is transmitted between the first terminal and the second terminal.

Illustratively, there is an RRC Connected (Connected) state between the first terminal and the network device. The state between the second terminal and the network device includes, but is not limited to, any of the following: RRC Connected (Connected) state, RRC Idle (Idle) state, RRC Inactive (Inactive) state. The second terminal is within the coverage area of the network device.

For the case that the first device is a network device, description is made of a case that there is sidestream data to be transmitted, that is, a case that the first terminal sends a second SR and/or a second BSR to the network device:

Fig. 13 provides a flowchart of a signal transmission/reception method according to an embodiment of the present application, where a network device in the method may be executed by an access network device shown in fig. 1, and a first terminal and a second terminal may be executed by a terminal shown in fig. 1, where the method includes:

step 552: the first terminal sends 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 equipment;

this step may refer to step 516 in the above embodiment, and will not be described in detail in this embodiment.

The first terminal may send the second SR and the second BSR to the network device, or may send only the second SR or the second BSR to the network device.

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

the network equipment receives a second SR and/or a 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 equipment sends scheduling information to a first terminal;

the scheduling information is used for scheduling transmission resources. And under the condition that the network equipment receives the second SR and/or the second BSR, the scheduling information is used for scheduling the third time-frequency resource.

Illustratively, in this embodiment, the scheduling information is used to schedule the third time-frequency resource. And the third time-frequency resource is used for the first terminal to send the sidestream data to the second terminal. I.e., sidestream data requested to be sent by the second SR. In various embodiments of the present application, the third time-frequency resource may or may not be in the active period, which is not limited in any way. Optionally, the third time-frequency resource comprises a time-frequency resource within at least one activation time period.

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

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

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

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

The format of the wake-up signal is illustratively a downlink control information format. The downlink control information is control information carried in the PDCCH. It should be noted that, with the development of mobile communication technology, a new information format may be presented in the downlink control information, and the wake-up signal in this application is also applicable to the new information format. Such as: the wake-up signal is DCI Format 2_6 (format2_6).

Step 566: the second terminal detects a side uplink signal in the following T1 activation time periods;

this step may refer to step 526 in the above embodiment, and will not be described in detail in this embodiment.

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

this step may refer to step 528 in the above embodiment, and will not be described in detail in this embodiment.

In summary, in the method provided in this embodiment, the wake-up signal is introduced to instruct the terminal to perform sidelink signal detection, which associates the sidelink signal detection with the presence of sidelink data, and the network device sends the wake-up signal to the second terminal, so that the second terminal performs the sidelink signal detection in the active period only when there is the sidelink data transmission, thereby saving unnecessary power consumption.

For the case that the first device is a network device, description is made of a case that there is no sidestream data to be transmitted, that is, a case that the first terminal does not send the second SR and/or the second BSR to the network device:

fig. 14 provides a flowchart of a signal transmission/reception method according to an embodiment of the present application, where a network device in the method may be executed by an access network device shown in fig. 1, and a first terminal and a second terminal may be executed by a terminal shown in fig. 1, where the method includes:

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

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

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

The format of the sleep signal is illustratively a downlink control information format. The downlink control information is control information carried in the PDCCH. It should be noted that, with the development of mobile communication technology, a new information format may be presented in the downlink control information, and the sleep signal in this application is also applicable to the new information format. Such as: the sleep signal is DCI Format 2_6 (Format 2_6).

Step 578: the second terminal does not detect the side uplink signal in the following T2 activation time periods;

this step may refer to step 542 in the above embodiment, and will not be described in detail in this embodiment.

In summary, in the method provided in this embodiment, the introduction of the sleep signal indicates that the terminal does not perform sidelink signal detection, and links the non-sidelink signal detection with the absence of sidelink data, so that the network device sends the sleep signal to the second terminal, thereby avoiding the problem that the sidelink signal detection is performed in the active period under the condition that there is no sidelink data transmission, and saving unnecessary power consumption.

It will be appreciated by those skilled in the art that the above embodiments may be implemented independently, or may be combined freely to form new embodiments, which are not limited in this application.

The following are device embodiments of the present application, which may be used to perform 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 transmitting apparatus according to an exemplary embodiment of the present application, the apparatus including:

a sending module 610, configured to send, by the first device, 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 side uplink signal detection.

In an optional design of the implementation, the first device is a first terminal, and side uplink communication is adopted between the first terminal and the second terminal, and the apparatus further includes:

a receiving module 620, configured to receive scheduling information of a network device by using the first terminal;

the sending module 610 is configured to: and the first terminal sends the awakening or dormancy signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information in the target time range.

In an alternative design of the present implementation, the sending module 610 is further configured to:

the first terminal sends a first SR and/or a first BSR to the network equipment, wherein the first SR or the first BSR is used for requesting the network equipment to send the scheduling information.

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

PSCCH; or, PSCCH and pscsch; or, PSFCH.

In an alternative design of the present implementation, the wake-up or sleep signal is carried in a PSCCH or PSSCH, where the first time-frequency resource is a PSCCH and a PSSCH.

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

the PSSCH carries second sidestream control information and filling data; or, the PSSCH only carries filling data; or, the PSSCH only carries second sidestream control information; or, the PSSCH carries second sidestream control information and data to be transmitted of the first terminal.

In an alternative design of the present implementation, the wake-up or sleep signal is:

a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH;

or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH;

or, a sequence-based signal.

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

the network equipment sends the wake-up signal to the second terminal at a second time-frequency resource within the target time range under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or, the network sends the dormancy signal to the second terminal at a second time-frequency resource in the target time range under the condition that the second SR and/or the second BSR sent by the first terminal are not received.

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

In an alternative design of the present implementation, the wake-up or sleep signal is: downlink control information format.

the first terminal sends Discontinuous Reception (DRX) configuration to the second terminal, and the wake-up or sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.

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

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

In an alternative design of the present implementation, the start of the target time range is determined by the start position X of the activation time period;

In an alternative design of the present implementation, the target time range includes N time slots that are backward continuous with an mth time slot before the start position X as a reference point; or, taking the Mth time slot in front of the starting position X as a reference point, and forwardly continuing N time slots; or, taking the starting position X as a reference point, and K time slots which are backwards continuous; or, taking the starting position X as a reference point, and K time slots which are continuous forwards; or, taking the starting position X as a reference point, and forward continuing to part of time slots in L time slots, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots; or taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots.

In an alternative design of the present implementation, at least one of the M, N, K, L and bit map: configuring, by the first terminal, to the second terminal; or, configuring, by the network device, to the second terminal; or, is preconfigured; or, predefined by the communication protocol.

In an alternative design of the present implementation, the wake-up signal is used to instruct the detection of the side-uplink signal during the subsequent T1 activation periods.

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

In an alternative design of the present implementation, the sleep signal is used to indicate that no side-downlink signal detection is performed for the subsequent T2 active periods.

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

Fig. 16 shows a block diagram of a signal receiving apparatus according to an exemplary embodiment of the present application, the apparatus including:

And the receiving module 710 is configured to receive, by the second terminal, 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 side uplink signal detection.

In an optional design of the implementation, the first device is a first terminal, and side uplink communication is adopted 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 a first time-frequency resource within the target time range;

the first time-frequency resource is determined by the first terminal in the target time range based on scheduling information sent by network equipment.

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

In an alternative design of the present implementation, the wake-up or sleep signal is: a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH; or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH; or, a sequence-based signal.

In an alternative design of the present 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 equipment at a second time-frequency resource within the target time range, wherein the wake-up signal is sent by the network equipment under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or the second terminal receives the sleep signal sent by the network device at a second time-frequency resource within the target time range, where the sleep signal is sent by the network device without receiving a second SR and/or a second BSR sent by the first terminal.

In an optional design of the present implementation, the second time-frequency resource is: and (3) PDCCH.

In an alternative design of the present implementation, the receiving module 710 is further configured to:

the second terminal receives the DRX configuration sent by the first terminal, and the wake-up or sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.

In an alternative design of the present implementation, the apparatus further comprises: and the detection module 720 is configured to perform side uplink signal detection in the subsequent T1 activation periods when the second terminal receives the wake-up signal.

In an alternative design of the present implementation, the detection module 720 is further configured to:

and under the condition that the second terminal receives the dormant signal, the second terminal does not detect the side downlink signal in the following T2 activation time periods.

It should be noted that, when the apparatus provided in the foregoing embodiment performs the functions thereof, only the division of the respective functional modules is used as an example, in practical application, the foregoing functional allocation may be performed by different functional modules according to actual needs, that is, the content structure of the device is divided into different functional modules, so as to perform all or part of the functions described above.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 17 shows a schematic structural diagram of a communication device according to 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 may be implemented as one transceiver, which may be a communication chip.

The memory 804 is connected to the processor 801 through a bus 805; by way of example, the processor 801 may be implemented as a first IC chip, and the processor 801 and the memory 804 may be implemented together as a second IC chip; the first chip or the second chip may be an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) chip.

The memory 804 may be used for storing at least one computer program, and the processor 801 is used for executing the at least one computer program for carrying out the steps of the above-described method embodiments.

Further, the memory 804 may be implemented by any type of volatile or nonvolatile storage device, including but not limited to: random-Access Memory (RAM), 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 Memory technology, compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), high density digital video disc (Digital Video Disc, DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices.

The embodiment of the application also provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is used for being executed by a processor of the multilink device to realize the signal sending method.

Alternatively, the computer-readable storage medium may include: read-Only Memory (ROM), random-Access Memory (RAM), solid state disk (Solid State Drives, SSD), or optical disk, etc. 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), among others.

The embodiment of the application also provides a chip, which comprises a programmable logic circuit and/or program instructions and is used for realizing the signal sending method when the chip runs on the multi-link device.

Embodiments of the present application also provide a computer program product or computer program comprising computer instructions stored in a computer readable storage medium, from which a processor of a multi-link device reads and executes the computer instructions to implement the above-described signaling method.

It should be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

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

References herein to "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In addition, the step numbers described herein are merely exemplary of one possible execution sequence among steps, and in some other embodiments, the steps may be executed out of the order of numbers, such as two differently numbered steps being executed simultaneously, or two differently numbered steps being executed in an order opposite to that shown, which is not limited by the embodiments of the present application.

Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these 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 foregoing description of the exemplary embodiments of the present application is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the invention.

Claims

A method of signaling, the method comprising:

the first device transmits a wake-up or sleep signal to the second terminal within a target time range, wherein the wake-up or sleep signal is used for indicating whether the second terminal performs side-link signal detection.
The method of claim 1, wherein the first device is a first terminal, and wherein side-link communication is employed between the first terminal and the second terminal, the method further comprising:

the first terminal receives scheduling information of network equipment;

the first device sending a wake-up or sleep signal to a second terminal within a target time range, comprising:

and the first terminal sends the awakening or dormancy signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information in the target time range.
The method according to claim 2, wherein the method further comprises:

The first terminal sends a first Scheduling Request (SR) and/or a first Buffer Status Report (BSR) to the network equipment, wherein the first SR or the first BSR is used for requesting the network equipment to send the scheduling information.
The method of 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 of claim 4, wherein the wake-up or sleep signal is carried in a PSCCH or PSSCH if the first time-frequency resource is a PSCCH and PSSCH.
The method of claim 5, wherein the wake-up or sleep signal is carried in a PSCCH,

the PSSCH carries second sidestream control information and filling data;

or, the PSSCH only carries filling data;

or, the PSSCH only carries second sidestream control information;

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

a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH;

Or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH;

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

the network equipment sends the wake-up signal to the second terminal at a second time-frequency resource within the target time range under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or the number of the groups of groups,

and the network sends the dormancy signal to the second terminal at a second time-frequency resource in the target time range under the condition that the second SR and/or the second BSR sent by the first terminal are not received.
The method of claim 8, wherein the second time-frequency resource is: physical downlink control channel PDCCH.
The method of claim 8, wherein the wake-up or sleep signal is: downlink control information format.
The method according to any one of claims 2 to 10, further comprising:

The first terminal sends Discontinuous Reception (DRX) configuration to the second terminal, and the wake-up or sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.
The method according to any one of claims 2 to 10, wherein,

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

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

or, the target time range is preconfigured;

or, the target time range is predefined by the 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 of claim 11, wherein the step of determining the position of the probe is performed,

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

or alternatively, the first and second heat exchangers may be,

the end of the target time range is determined by the start position X of the activation period.
The method of claim 14, wherein the target time frame comprises:

taking the Mth time slot in front of the starting position X as a reference point, and N time slots which are continuous backwards;

Or, taking the Mth time slot in front of the starting position X as a reference point, and forwardly continuing N time slots;

or, taking the starting position X as a reference point, and K time slots which are backwards continuous;

or, taking the starting position X as a reference point, and K time slots which are continuous forwards;

or, taking the starting position X as a reference point, and forward continuing to part of time slots in L time slots, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots;

or taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots.
The method of claim 15, wherein at least one of the M, N, K, L and bit map:

configuring, by the first terminal, to the second terminal;

or, configuring, by the network device, to the second terminal;

or, is preconfigured;

or, predefined by the communication protocol.
The method according to any one of claims 1 to 10, wherein,

the wake-up signal is used to instruct the detection of the side-uplink signal in the following T1 activation periods.
The method of claim 17, wherein the step of determining the position of the probe is performed,

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

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

or, the T1 is preconfigured;

or, the T1 is predefined by a communication protocol.
The method according to any one of claims 1 to 10, wherein,

the sleep signal is used to indicate that no side-uplink signal detection is performed for the subsequent T2 active periods.
The method of claim 19, wherein the step of determining the position of the probe comprises,

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

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

or, the T2 is preconfigured;

or, the T2 is predefined by the communication protocol.
A method of signal reception, the method comprising:

and the second terminal receives a wake-up or sleep signal sent by the first device in a target time range, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects a side uplink signal or not.
The method of claim 21, wherein the first device is a first terminal, wherein side-link communication is employed between the first terminal and the second terminal, wherein the second terminal receives a wake-up or sleep signal transmitted by the first device within a target time range, comprising:

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

the first time-frequency resource is determined by the first terminal in the target time range based on scheduling information sent by network equipment.
The method of claim 22, wherein the first time-frequency resource is:

PSCCH；

or, PSCCH and pscsch;

or, PSFCH.
The method of claim 23, wherein the wake-up or sleep signal is carried in a PSCCH or PSSCH if the first time-frequency resource is a PSCCH and PSSCH.
The method of claim 24, wherein the wake-up or sleep signal is carried in a PSCCH,

the PSSCH carries second sidestream control information and filling data;

or, the PSSCH only carries filling data;

or, the PSSCH only carries second sidestream control information;

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

a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH;

Or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH;

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

the second terminal receives the wake-up signal sent by the network equipment at a second time-frequency resource within the target time range, wherein the wake-up signal is sent by the network equipment under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or the number of the groups of groups,

the second terminal receives the sleep signal sent by the network device at a second time-frequency resource within the target time range, wherein the sleep signal is sent by the network device under the condition that the network device does not receive a second SR and/or a second BSR sent by the first terminal.
The method of claim 27, wherein the second time-frequency resource is: and (3) PDCCH.
The method of claim 27, wherein the wake-up or sleep signal is: downlink control information format.
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 sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.
The method according to any one of claims 22 to 29, wherein,

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

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

or, the target time range is preconfigured;

or, the target time range is predefined by the communication protocol.
The method of 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 step of determining the position of the probe is performed,

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

or alternatively, the first and second heat exchangers may be,

the end of the target time range is determined by the start position X of the activation period.
The method of claim 33, wherein the target time frame comprises:

Taking the Mth time slot in front of the starting position X as a reference point, and N time slots which are continuous backwards;

or, taking the Mth time slot in front of the starting position X as a reference point, and forwardly continuing N time slots;

or, taking the starting position X as a reference point, and K time slots which are backwards continuous;

or, taking the starting position X as a reference point, and K time slots which are continuous forwards;

or, taking the starting position X as a reference point, and forward continuing to part of time slots in L time slots, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots;

or taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots.
The method of claim 34, wherein at least one of the M, N, K, L and bit map:

configuring, by the first terminal, to the second terminal;

or, configuring, by the network device, to the second terminal;

or, is preconfigured;

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

And under the condition that the second terminal receives the wake-up signal, the second terminal detects the side uplink signal in the following T1 activation time periods.
The method of claim 36, wherein the step of determining the position of the probe is performed,

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

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

or, the T1 is preconfigured;

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

and under the condition that the second terminal receives the dormant signal, the second terminal does not detect the side downlink signal in the following T2 activation time periods.
The method of claim 38, wherein the step of determining the position of the probe is performed,

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

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

or, the T2 is preconfigured;

or, the T2 is predefined by the communication protocol.
A signal transmission apparatus, the apparatus comprising:

and the sending module is used for sending a wake-up or sleep signal to the second terminal in the target time range by the first equipment, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects the side uplink signal or not.
The apparatus of claim 40, wherein the first device is a first terminal, and wherein side-link communication is employed between the first terminal and the second terminal, the apparatus further comprising:

a receiving module, configured to receive scheduling information of a network device by using the first terminal;

the sending module is used for: and the first terminal sends the awakening or dormancy signal to the second terminal based on the first time-frequency resource scheduled by the scheduling information in the target time range.
The apparatus of claim 41, wherein the means for transmitting is further for:

the first terminal sends a first SR and/or a first BSR to the network equipment, wherein the first SR or the first BSR is used for requesting the network equipment to send the scheduling information.
The apparatus of claim 41, wherein the first time-frequency resource is:

PSCCH; or, PSCCH and pscsch; or, PSFCH.
The apparatus of claim 43, wherein the wake-up or sleep signal is carried in a PSCCH or PSSCH if the first time-frequency resource is a PSCCH or PSSCH.
The apparatus of claim 44, wherein the wake-up or sleep signal is carried in a PSCCH,

The PSSCH carries second sidestream control information and filling data;

or, the PSSCH only carries filling data;

or, the PSSCH only carries second sidestream control information;

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

a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH;

or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH;

or, a sequence-based signal.
The apparatus of claim 40, wherein the first device is a network device; the sending module is used for:

the network equipment sends the wake-up signal to the second terminal at a second time-frequency resource within the target time range under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or, the network sends the dormancy signal to the second terminal at a second time-frequency resource in the target time range under the condition that the second SR and/or the second BSR sent by the first terminal are not received.
The apparatus of claim 47, wherein the second time-frequency resource is: physical downlink control channel PDCCH.
The apparatus of claim 47, wherein the wake-up or sleep signal is: downlink control information format.
The apparatus of any one of claims 41 to 49, wherein the means for transmitting is further configured to:

the first terminal sends Discontinuous Reception (DRX) configuration to the second terminal, and the wake-up or sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.
The apparatus of any one of claims 41 to 49, wherein,

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

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

or, the target time range is preconfigured;

or, the target time range is predefined by the communication protocol.
The apparatus of 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 device comprises,

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

or, the end of the target time range is determined by the start position X of the activation period.
The apparatus of claim 53, wherein the target time frame comprises:

taking the Mth time slot in front of the starting position X as a reference point, and N time slots which are continuous backwards;

or, taking the Mth time slot in front of the starting position X as a reference point, and forwardly continuing N time slots;

or, taking the starting position X as a reference point, and K time slots which are backwards continuous;

or, taking the starting position X as a reference point, and K time slots which are continuous forwards;

or, taking the starting position X as a reference point, and forward continuing to part of time slots in L time slots, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots;

or taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots.
The apparatus of claim 54, wherein at least one of the M, N, K, L and bit map:

Configuring, by the first terminal, to the second terminal; or, configuring, by the network device, to the second terminal; or, is preconfigured; or, predefined by the communication protocol.
The apparatus of any one of claims 40 to 49,

the wake-up signal is used to instruct the detection of the side-uplink signal in the following T1 activation periods.
The apparatus of claim 56, wherein said T1 is configured by said first terminal to said second terminal; or, the T1 is configured by the network device to the second terminal; or, the T1 is preconfigured; or, the T1 is predefined by a communication protocol.
The apparatus of any one of claims 40 to 49,

the sleep signal is used to indicate that no side-uplink signal detection is performed for the subsequent T2 active periods.
The apparatus of claim 58, wherein the T2 is configured by the first terminal to the second terminal; or, the T2 is configured by the network device to the second terminal; or, the T2 is preconfigured; or, the T2 is predefined by the communication protocol.
A signal receiving apparatus, the apparatus comprising:

And the receiving module is used for receiving the wake-up or sleep signal sent by the first equipment within the target time range by the second terminal, wherein the wake-up or sleep signal is used for indicating whether the second terminal detects the side uplink signal or not.
The apparatus of claim 60, wherein the first device is a first terminal, wherein side-link communication is employed between the first terminal and the second terminal, and wherein the receiving means is configured to:

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

PSCCH; or, PSCCH and pscsch; or, PSFCH.
The apparatus of claim 62, wherein the wake-up or sleep signal is carried in a PSCCH or PSSCH if the first time-frequency resources are the PSCCH and PSSCH.
The apparatus of claim 63, wherein the wake-up or sleep signal is carried in a PSCCH,

The PSSCH carries second sidestream control information and filling data;

or, the PSSCH only carries filling data;

or, the PSSCH only carries second sidestream control information;

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

a first sidelink control information format, the first sidelink control information being sidelink control information carried in a PSCCH;

or, a second sidestream control information format, where the second sidestream control information is sidestream control information carried in the PSSCH;

or, a sequence-based signal.
The apparatus of 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 equipment at a second time-frequency resource within the target time range, wherein the wake-up signal is sent by the network equipment under the condition of receiving a second SR and/or a second BSR sent by the first terminal;

and/or the second terminal receives the sleep signal sent by the network device at a second time-frequency resource within the target time range, where the sleep signal is sent by the network device without receiving a second SR and/or a second BSR sent by the first terminal.
The apparatus of claim 66, wherein the second time-frequency resources are: and (3) PDCCH.
The apparatus of claim 66, wherein the wake-up or sleep signal is: downlink control information format.
The apparatus of any one of claims 61 to 68, wherein the receiving means is further for:

the second terminal receives the DRX configuration sent by the first terminal, and the wake-up or sleep signal is used for indicating whether the second terminal performs side uplink signal detection in an active time period in the DRX configuration.
The apparatus of any one of claims 61 to 68, wherein,

the target time range is configured to the second terminal by the first terminal; or, the target time range is configured to the second terminal by the network device; or, the target time range is preconfigured; or, the target time range is predefined by the communication protocol.
The apparatus of 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 device comprises,

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

or, the end of the target time range is determined by the start position X of the activation period.
The apparatus of claim 72, wherein the target time frame comprises:

taking the Mth time slot in front of the starting position X as a reference point, and N time slots which are continuous backwards;

or, taking the Mth time slot in front of the starting position X as a reference point, and forwardly continuing N time slots;

or, taking the starting position X as a reference point, and K time slots which are backwards continuous;

or, taking the starting position X as a reference point, and K time slots which are continuous forwards;

or, taking the starting position X as a reference point, and forward continuing to part of time slots in L time slots, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots;

or taking the starting position X as a reference point, and taking part of L time slots which are backward continuous, wherein the part of time slots are time slots corresponding to bits with a first value in a bit bitmap with the length of L in the L time slots.
The apparatus of claim 73, wherein at least one of the M, N, K, L and bit map:

Configuring, by the first terminal, to the second terminal; or, configuring, by the network device, to the second terminal; or, is preconfigured; or, predefined by the communication protocol.
The apparatus according to any one of claims 60 to 68, wherein the apparatus further comprises:

and the detection module is used for detecting the side uplink signal in the following T1 activation time periods under the condition that the second terminal receives the wake-up signal.
The apparatus of claim 75, wherein said T1 is configured by said first terminal to said second terminal; or, the T1 is configured by the network device to the second terminal; or, the T1 is preconfigured; or, the T1 is predefined by a communication protocol.
The apparatus of any one of claims 60 to 68, wherein the detection module is further configured to:

and under the condition that the second terminal receives the dormant signal, the second terminal does not detect the side downlink signal in the following T2 activation time periods.
The apparatus of claim 77, wherein said T2 is configured by said first terminal to said second terminal; or, the T2 is configured by the network device to the second terminal; or, the T2 is preconfigured; or, the T2 is predefined by the communication protocol.
A communication device comprising a processor and a memory, the memory having at least one program therein; the processor being configured to execute the at least one program in the memory to implement the signal transmission method of any one of the preceding claims 1 to 20 or the signal reception method of any one of the preceding claims 21 to 39.
A computer readable storage medium, characterized in that the storage medium has stored therein a computer program for execution by a processor to implement the signal transmission method of any one of the preceding claims 1 to 20 or the signal reception method of any one of the preceding claims 21 to 39.
A chip comprising programmable logic circuits and/or program instructions for implementing the signal transmission method of any one of claims 1 to 20, or the signal reception method of any one of claims 21 to 39 when the chip is operating.
A computer program product or computer program comprising computer instructions stored in a computer readable storage medium, from which a processor reads and executes the computer instructions to implement the signal transmission method of any one of the preceding claims 1 to 20 or the signal reception method of any one of the preceding claims 21 to 39.