CN120379030A

CN120379030A - Communication method and device

Info

Publication number: CN120379030A
Application number: CN202410111441.2A
Authority: CN
Inventors: 齐鸿; 徐姣姣; 苏宏家
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2024-01-25
Filing date: 2024-01-25
Publication date: 2025-07-25
Also published as: WO2025156745A1

Abstract

The application provides a communication method and a device, relates to the technical field of communication, and aims to ensure that enough available resources exist in a resource selection window. The method comprises the steps of determining a first available resource set in a side uplink resource pool and sending a first signal according to the first available resource set, wherein the first available resource set comprises first reserved resources, the first reserved resources are used for sensing, and the first reserved resources are not used for communication.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

In Side Link (SL) communication, there are two resource selection manners of the terminal device, which are mode one (mode 1) and mode two (mode 2), respectively. Where mode 1 is a mode based on base station scheduling and mode 2 is a mode in which a user autonomously selects resources. In mode 2, the transmission resource of the transmitting end does not depend on the network device, i.e. it can select the transmission resource for communication in the resource selection window (resource selection window, RSW) according to the result perceived in the self-perception window.

However, in some cases, less resources are available in the resource selection window, i.e. the resources may not be sufficient, thereby affecting the resource selection and thus the communication of the terminal device. How to guarantee that there are enough resources available in the resource selection window is a hotspot problem discussed at present.

Disclosure of Invention

The application provides a communication method and a communication device, which are used for guaranteeing that enough available resources exist in a resource selection window.

In order to achieve the above purpose, the application adopts the following technical scheme:

in a first aspect, a communication method is provided. The method may be performed by the first terminal device, or by a component of the first terminal device, such as a processor, a chip, or a system-on-a-chip of the first terminal device, or by a logic module or software that may implement all or part of the functionality of the first terminal device, for example. The following description will be made on the case where the method is executed by the first terminal apparatus. The method comprises the steps of determining a first available resource set in a side uplink resource pool and sending a first signal according to the first available resource set, wherein the first available resource set comprises first reserved resources, the first reserved resources are used for sensing, and the first reserved resources are not used for communication.

Based on the method of the first aspect, the first terminal device may transmit the sensing signal (information) using the resource in the side uplink to sense, that is, transmit the sensing signal using the resource to sense, and not communicate. In this case, the first terminal device may select resources for perception in the resource selection window in addition to resources for communication in the resource selection window. When the first terminal device determines available resources in the resource selection window, the resources reserved by other terminal devices for communication and the resources for perception are usually removed from all the resources corresponding to the resource selection window, and the remaining resources are used for determining an available resource set. However, this results in more resources being excluded, and the remaining resources are insufficient. Thus, reserved resources for awareness and not for communication can be set in the set of available resources, i.e. set as available resources. It will be appreciated that the reserved resources for sensing and not for communication are known sensing signals sent when they are used for sensing and have high tolerance to bit error rate, so that the reserved resources can be used by other terminal devices, such as other terminals for communication or sensing, while they are used for sensing and not used for communication. Therefore, enough resources in the available resource set determined by the first terminal equipment can be used, and enough available resources in the resource selection window can be ensured.

In a possible design, before determining the first set of available resources in the side-uplink resource pool, the method of the first aspect further includes receiving first side-uplink control information, the first side-uplink control information indicating that the first reserved resources are for awareness and the first reserved resources are not for communication. It may be understood that the first reserved resource is a resource reserved for use by other terminal devices except the first terminal device, and after the other terminal devices reserve the first reserved resource, the other terminal devices may inform each terminal device that the first reserved resource is reserved as a resource for sensing and being different from communication by sending the first side uplink control information. That is, the first terminal device may determine the role of the first reserved resource by receiving the first side uplink control information at this time.

In one possible design, the signal receiving power corresponding to the first reserved resource is smaller than a first signal receiving power threshold, where the first signal receiving power threshold is used for performing resource exclusion on reserved resources that are used for sensing and are not used for communication in the process of determining the available resource set. It may be appreciated that, in determining the first set of available resources, the first terminal device may compare the signal received power corresponding to the first reserved resource with the first signal received power threshold, and when the signal received power corresponding to the reserved resource is less than the first signal received power threshold, reserve the reserved resource in the first set of available resources. In this way, the first terminal device can reserve the first reserved resource to the first available resource set in the process of determining the first available resource set.

Optionally, the first signal received power threshold is greater than the second signal received power threshold, and the second signal received power threshold is used for performing resource exclusion on reserved resources for communication in the process of determining the available resource set. It is understood that the second signal reception power threshold may be understood as a corresponding signal reception power threshold at the time of data transmission. In this way, the first terminal device can preferentially reserve the reserved resources used for sensing and not used for communication in the reserved resources used for sensing and not used for communication and the reserved resources used for communication when determining the first available resource set, namely, the reserved resources are not excluded, so that the first terminal device can ensure that enough resources in the first available resource set are used for the first terminal device under the condition that data transmission is not affected.

Optionally, the first signal reception power threshold is determined according to a priority of the first reserved resource, and the priority of the first reserved resource is lower than or equal to a preset priority. It may be appreciated that the correspondence between the first signal reception power threshold and the priority of the first reserved resource may be configured, preconfigured or predefined by a protocol, so that the first terminal device may determine the first signal reception power threshold according to the priority of the first reserved resource.

Further, in the case where the priority of the first reserved resource is lower than the preset priority, the preset priority is the priority of the reserved resource for communication. It will be appreciated that the lower the priority, the greater the signal received power threshold to which the priority corresponds. In this way, the signal receiving power threshold corresponding to the reserved resource for sensing and not used for communication can be made larger than the signal receiving power threshold corresponding to the reserved resource for communication, so that when the first available resource set is determined, the reserved resource for sensing and not used for communication is reserved preferentially, namely the reserved resource is not excluded, among the reserved resource for sensing and not used for communication and the reserved resource for communication, and therefore the situation that the data transmission is not affected is achieved, and enough resources are ensured to be used for the first terminal device in the first available resource set.

In one possible embodiment, the sensing is performed by transmitting a second signal and receiving a first reflected signal, the first reflected signal being a signal reflected by the second signal after encountering the object. That is, the device, when sensing, after transmitting the second signal, needs to receive the first reflected signal reflected by the second signal after encountering the object, so as to determine the relevant characteristics of the object, such as position, distance, etc., according to the second signal and the first reflected signal.

In one possible embodiment, the communication is performed by transmitting a third signal, or the communication is performed by transmitting the third signal and receiving a fourth signal, which is transmitted by the receiving party after receiving the third signal. That is, the device may send a signal, such as a broadcast, by the device during communication, or may send a signal and receive a signal returned by the recipient based on the signal to complete its communication with the recipient.

In one possible design, transmitting the first signal based on the first set of available resources includes determining a first resource from the first set of available resources and transmitting the first signal on the first resource. That is, after determining the first set of available resources, the first terminal device may select one resource from at least one resource included in the first set of available resources for communication or perception. It will be appreciated that the first resource may be determined from the first available resources according to the actual situation, without limitation.

Optionally, the first resource is a first reserved resource, and transmitting the first signal on the first resource includes transmitting the first signal on the first reserved resource to a first direction, the first direction being a direction of the first beam. That is, the first terminal may communicate or perceive by transmitting the first signal on the first reserved resource. It is to be appreciated that the first beam can be a beam comprised by the first terminal device and the first set of available resources includes at least one resource that can be utilized for communication or perception in the first direction.

Further, the direction of the first beam includes a direction of a main lobe in the first beam or a direction of a first side lobe in the first beam. It can be understood that the direction of the first beam may be the direction of the main lobe in the first beam when the main lobe is used for communication or sensing, and the direction of the first beam may be the direction of the main lobe in the first beam or the direction of the first side lobe in the first beam when the side lobe is used for communication or sensing, which may be specifically determined according to the actual situation.

In a second aspect, a communication method is provided. The method may be performed by the first terminal device, or may be performed by a component of the first terminal device, such as a processor, a chip, or a system-on-a-chip of the first terminal device, or may be implemented by a logic module or software that may implement all or part of the functionality of the first terminal device. The following description will be made on the case where the method is executed by the first terminal apparatus. The method comprises the steps of determining a first time domain window in a side uplink resource pool, wherein the first time domain window comprises first time domain resources and second time domain resources, sending first information to a first direction on the first time domain resources, wherein the first information is used for sensing, the first direction is the direction of a first wave beam, and sending second information to a second direction on the second time domain resources, the second information is used for sensing, and the second direction is the direction of a second wave beam, and the first direction is different from the second direction.

Based on the method of the second aspect, the first terminal device can perform sensing in different directions on the first time domain resource and the second time domain resource in the first time domain window. Therefore, when the first terminal equipment has the sensing requirement, sensing is realized through the time domain resources in the first time domain window.

In one possible embodiment, the first information is also used for communication. That is, the first terminal device may perform sensing by transmitting the first information on the first time domain resource, and communication with the second terminal device in the first direction is achieved by transmitting the first information, i.e., communication and sensing are achieved by transmitting the first information. Thus, the communication requirement and the perception requirement of the first terminal equipment can be simultaneously met.

In one possible design, the second information is for perception, including that the second information is for perception and the second information is not for communication. That is, the first terminal device may use the second information to sense in the second direction without communication. Thus, the sensing requirement of the first terminal equipment can be met.

In one possible embodiment, the sensing is performed by transmitting a first signal and receiving a first reflected signal, the first reflected signal being a signal reflected by the first signal after encountering the object.

In one possible embodiment, the communication is carried out by transmitting a second signal, or by transmitting the second signal and receiving a third signal, which is transmitted by the receiver after receiving the second signal.

In one possible design, the first time domain resource and the second time domain resource are located in Q time domain resources, the Q time domain resources are located in a first time domain window,N is the number of beams used for sensing, M is the number of side lobes in each of the beams used for sensing,For rounding up, N is an integer greater than 1 and M is a positive integer. It can be understood that in the scene where side lobe sensing exists, if the side lobe in the beam is the same or partially the same as the main lobe in the adjacent beam of the beam, sensing of the direction of the main lobe can be achieved through the side lobe, that is, fewer than all resources for sensing the number of beams can be set in the first time domain window, and omni-directional sensing can be achieved through the resources. The partial identity may be understood that the direction of the side lobe in the beam is mostly identical to the direction of the main lobe in the beam adjacent to the beam, for example, the ratio of the side lobe in the beam and the direction of the main lobe in the beam adjacent to the beam to the direction of the main lobe reaches a preset value, where the preset value may be 90%, or 95%, or 98%, and specifically may be set according to the actual situation, and is not limited. In this way, resources can be saved.

In addition, the technical effects of the method described in the second aspect may also refer to the technical effects of the method described in the first aspect, which are not described herein.

In a third aspect, a communication method is provided, where the method may be performed by the first terminal device, or a component of the first terminal device, such as a processor, a chip, or a system-on-chip of the first terminal device, or implemented by a logic module or software that can implement all or part of the functions of the first terminal device. The following description will be made on the case where the method is executed by the first terminal apparatus. The method comprises the steps of receiving a reference signal, and determining that no beam failure occurs when the received power of the reference signal is larger than a first received power, wherein the first received power is a difference value between the received power of first data and the first power, the first data is recently received downlink data or side data before the reference signal is received, and the first power is a difference value between the power of a main lobe in a beam for receiving the first data and the power of a side lobe in the beam for receiving the reference signal.

Based on the method of the third aspect, the received power of the first data may represent the power of the main lobe in the beam, the first power may represent the difference between the power of the main lobe and the power of the side lobe in the beam, and thus the first received power may represent the power of the side lobe in the beam. Under the condition that side lobe sensing exists, the first terminal equipment compares the received power of the reference signal with the first received power, whether the received power of the reference signal is larger than the power of the side lobe in the wave beam or not can be determined, and when the received power of the reference signal is larger than the first received power, namely, the received power of the reference signal is larger than the power of the side lobe in the wave beam, the failure of the wave beam can be accurately determined.

In a possible design, the method of the third aspect further includes receiving first information, the first information indicating the first power. In this way, the first power can be flexibly configured according to the actual situation. It may be appreciated that the first power may be preset or predefined by a protocol, and specifically may be set according to an actual situation, without limitation.

Optionally, the first information is downlink control information, or side-downlink control information. Therefore, the information in the prior art can be multiplexed to indicate the first power, so that the implementation difficulty can be reduced.

In a fourth aspect, a communication device is provided. The communication device comprises means, such as a transceiver module and a processing module, for performing the method according to any of the first to third aspects. For example, a transceiver module for indicating a transceiver function of the communication device, and a processing module for performing a function of the communication device other than the transceiver function.

Alternatively, the transceiver module may include a transmitting module and a receiving module. The sending module is used for realizing the sending function of the communication device according to the fourth aspect, and the receiving module is used for realizing the receiving function of the communication device according to the fourth aspect.

Optionally, the communication device according to the fourth aspect may further include a storage module, where the storage module stores a program or instructions. The program or instructions, when executed by the processing module, enable the communications device to perform the method of any one of the first to third aspects.

It will be appreciated that the communication apparatus according to the fourth aspect may be a terminal device, or may be a chip (system) or other parts or components that may be disposed in the terminal device, or may be an apparatus including the terminal device, which is not limited in this aspect of the present application.

In addition, the technical effects of the communication device according to the fourth aspect may refer to the technical effects of the method according to any implementation manner of the first aspect to the third aspect, which are not described herein.

In a fifth aspect, a communication device is provided. The communications apparatus includes a processor which when executing computer instructions causes the communications apparatus to perform the method of any one of the possible implementations of the first to third aspects.

In one possible configuration, the communication device according to the fifth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the fifth aspect to communicate with other communication devices.

In one possible configuration, the communication device according to the fifth aspect may further comprise a memory. The memory may be integral with the processor or may be separate. The memory may be used for storing computer programs and/or data related to the method according to any of the first to third aspects.

In an embodiment of the present application, the communication apparatus according to the fifth aspect may be the terminal device according to any one of the first to third aspects, or a chip (system) or other parts or components that may be disposed in the terminal device, or an apparatus including the terminal device.

In addition, the technical effects of the communication device according to the fifth aspect may refer to the technical effects of the method according to any implementation manner of the first to third aspects, which are not described herein.

In a sixth aspect, a communication device is provided. The communication device comprises a processor coupled to a memory for executing a computer program stored in the memory for causing the communication device to perform the method according to any one of the possible implementation manners of the first to third aspect.

In one possible configuration, the communication device according to the sixth aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the sixth aspect to communicate with other communication devices.

In an embodiment of the present application, the communication apparatus according to the sixth aspect may be the terminal device according to any one of the first to third aspects, or a chip (system) or other parts or components that may be disposed in the terminal device, or an apparatus including the terminal device.

In addition, the technical effects of the communication device described in the sixth aspect may refer to the technical effects of the method described in any implementation manner of the first aspect to the third aspect, which are not described herein.

In a seventh aspect, there is provided a communication device comprising a processor and a memory for storing a computer program which, when executed by the processor, causes the communication device to perform the method of any one of the implementations of the first to third aspects.

In one possible configuration, the communication device according to the seventh aspect may further comprise a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in a communication device according to the seventh aspect to communicate with other communication devices.

In an embodiment of the present application, the communication apparatus according to the seventh aspect may be the terminal device according to any one of the first to third aspects, or a chip (system) or other parts or components that may be disposed in the terminal device, or an apparatus including the terminal device.

In addition, the technical effects of the communication device according to the seventh aspect may refer to the technical effects of the method according to any implementation manner of the first to third aspects, which are not described herein.

An eighth aspect provides a communication device configured to implement the method according to any one of the possible implementation manners of the first to third aspects.

Optionally, the communication device includes a user equipment or a chip.

A ninth aspect provides a communication chip having instructions stored therein which, when executed on a communication device, cause the method of any one of the implementations of the first to third aspects to be implemented.

In a tenth aspect, there is provided a communication chip comprising logic circuitry for executing computer instructions and a communication interface for communicating with other devices or chips, the logic circuitry, when executing computer instructions, causing the method of any one of the implementations of the first to third aspects to be implemented.

An eleventh aspect provides a communication system comprising a terminal device for performing the method of the third aspect and a first device for transmitting a reference signal.

In a twelfth aspect, there is provided a computer readable storage medium comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method of any one of the possible implementations of the first to third aspects.

In a thirteenth aspect, a computer program product is provided, comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method according to any one of the possible implementations of the first to third aspects.

Drawings

Fig. 1 is an antenna pattern of a directional antenna according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a main lobe and a side lobe when a terminal device provided in an embodiment of the present application sends information;

FIG. 3 is a schematic diagram of a relationship between physical time slots and logical time slots according to an embodiment of the present application;

fig. 4 is a schematic diagram of resource selection performed by a terminal device according to an embodiment of the present application;

fig. 5 is a schematic diagram of resource selection of a ue#3 according to an embodiment of the present application;

Fig. 6 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 7 is a schematic flow chart of a communication method according to an embodiment of the present application;

Fig. 8 is a schematic beam diagram of a first terminal device according to an embodiment of the present application;

Fig. 9 is a second schematic flow chart of a communication method according to an embodiment of the present application;

fig. 10 is a schematic diagram of a correspondence between beams and time domain resources according to an embodiment of the present application;

fig. 11 is a schematic diagram of an angle range corresponding to a main lobe in a beam according to an embodiment of the present application;

fig. 12 is a schematic view of the main lobe and the angular ranges corresponding to the side lobes in the beam according to the embodiment of the present application;

FIG. 13 is a schematic view of a first direction and a second direction according to an embodiment of the present application;

fig. 14 is a flowchart of a communication method according to an embodiment of the present application;

Fig. 15 is a schematic diagram of beam failure according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 17 is a schematic diagram of a second structure of a communication device according to an embodiment of the present application.

Detailed Description

It is convenient to understand that technical terms related to the present application are first described below.

1. Beam

A beam refers to a special transmitting or receiving effect with directivity formed by a transmitter or receiver of a network device or a terminal device through an antenna array, similar to a beam formed by a flashlight converging light into one direction. The transmission distance of the signals can be effectively improved by transmitting and receiving the signals in the form of wave beams.

The beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique or other technique. The beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, or a hybrid digital/analog beamforming technique, etc.

The beam may include a main lobe, side lobes, and a rear lobe. As shown in fig. 1, fig. 1 may characterize the radiation characteristics (e.g., field intensity amplitude, phase, polarization) of a directional antenna as a function of spatial angle. In fig. 1, there are a plurality of lobes, wherein the lobe with the greatest radiation intensity is called the main lobe, the remaining lobes are called side lobes or side lobes, and the lobe opposite to the main lobe is called the rear lobe. The angle between the two points below 3 decibels (dB) of radiation intensity on either side of the main lobe maximum radiation direction is defined as the lobe width, which may also be referred to as the beam width, main lobe width, or half power angle. It will be appreciated that the narrower the lobe width, the better the beam directivity, the longer the distance the beam acts on, and the greater the interference immunity. And the sidelobes diffuse the acoustic energy and increase the attenuation. In addition, when the terminal device sends information at the radio frequency end, there may be one main lobe and at least one side lobe, for example, as shown in fig. 2, when the terminal device sends information at the radio frequency end, there is one main lobe and one side lobe. It will be appreciated that the beam direction may be the direction of the main lobe when the side lobes are small relative to the main lobe, i.e. when the side lobes are negligible relative to the main lobe.

The beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources, the terminal feeds back the measured resource quality, and the network device can know the quality of the corresponding beam. During data transmission, the beam can also be indicated by its corresponding resource. For example, the network device indicates a transmission configuration indication-state (state) through a transmission configuration number (transmission configuration index, TCI) field in downlink control information (downlink control information, DCI), and the terminal device determines a beam corresponding to the reference resource according to the reference resource included in the TCI-state.

In a communication protocol, the beams may be characterized specifically as digital beams, analog beams, spatial filters (spatial domain filter), spatial filters (SPATIAL FILTER), spatial parameters (SPATIAL PARAMETER), TCI-states, etc. The beam used to transmit the signal may be referred to as a transmit beam (transmission beam, or Tx beam), spatial transmit filter (spatial domain transmission filter), spatial transmit filter (spatial transmission filter), spatial transmit parameters (spatial domain transmission parameter), spatial transmit parameters (spatial transmission parameter), and the like. The beam used for transmitting the signal is understood as a distribution of signal intensities formed in spatially different directions after the signal is transmitted through the antenna. The beams used to receive the signals may be referred to as receive beams (or Rx beams), spatial receive filters (spatial domain reception filter), spatial receive filters (spatial reception filter), spatial receive parameters (spatial domain reception parameter), spatial receive parameters (spatial reception parameter), and the like. A beam for receiving a signal is understood to be a signal strength distribution of a radio signal received from an antenna in spatially different directions.

It will be appreciated that embodiments of the application are described in terms of beams in general, but that beams may alternatively be understood as other equivalent concepts and are not limited to the concepts mentioned above.

2. Side uplink control information (sidelink control information, SCI)

SCI is divided into a first stage SCI and a second stage SCI. The first stage SCI is carried on a physical layer side uplink control channel (PSCCH). And the first stage SCI may be used for channel sensing (sense), i.e. for determining the resources reserved by other transmissions, and it may be used for scheduling the second stage SCI and PSSCH. Illustratively, the first stage SCI may be used to indicate the frequency resources, such as subchannels, of a physical layer side uplink shared channel (PHYSICAL SIDELINK SHARED CHANNEL, PSSCH) carrying a current (re) transmission of a Transport Block (TB), as well as the resources reserved for up to two retransmissions of a TB. If the terminal device performs periodic reservation of resources, the first-level SCI also indicates a resource reservation period. In addition, the first stage SCI includes the priority of the associated PSSCH, and the format and size of the second SCI. The second level SCI is carried on the PSSCH and can be used for additional control information required for the receiving end (e.g., terminal device) that needs to transmit.

3. Resource pool

For side-link communication, the network device may (pre) configure the terminal device with a resource pool, i.e. a SL resource pool. The resource pool is a set of time-frequency resources, i.e. the resource pool may comprise at least one time-frequency resource. The at least one time domain resource may be used for the terminal device to transmit and receive at least one physical channel such as a physical layer side uplink control channel (PSCCH), PSSCH, etc.

The SL resource pool includes one or more time units in a time domain, where the time units may be at least one symbol, at least one slot (slot), at least one micro slot (mini-slot), at least one subframe, or at least one frame, and the relevant description of the symbol, the slot, the micro slot, the subframe, and the frame may refer to the prior art, and will not be repeated herein. It will be appreciated that the time units may be contiguous or discrete in time, but within a resource pool, the time units are logically contiguous. For example, as shown in FIG. 3, time slots 1 to 8 are time-consecutive time slots, i.e., physical time slots, and time slots 1,3, 5 and 8 are configured as time slots belonging to one resource pool, and at this time, the four time slots correspond to time slots a1, a2, a3 and a4 in the resource pool, respectively, and time slots a1, a2, a3 and a4 are logically consecutive, so that time slots 1,3, 5 and 8 are time-discrete, but the four logically consecutive time slots may also be referred to as logical time slots.

The SL resource pool includes one or more frequency domain units in a frequency domain, where the frequency domain units may be at least one Resource Element (RE), at least one Resource Block (RB), or at least one sub-channel (sub-channel), and the related description of the RE, RB, and sub-channel may refer to the prior art, and will not be repeated herein.

4. Resource selection mode of side link

In the side uplink communication, there are two resource selection modes, mode 1 and mode 2, mode 1 is a mode based on base station scheduling, and mode 2 is a mode in which a user autonomously selects a resource. In mode 2, the transmission resource of the transmitting end (such as the terminal device) does not depend on the network device, i.e. it can select the transmission resource for communication in the resource selection window according to the result perceived in the self-perception window. As shown in fig. 4, the process of triggering resource selection by the terminal device in the time slot n includes the following steps:

Step 4-1, the terminal device determines a resource selection window [ n+T ₁,n+T₂ ], T _2min≤T₂ is less than or equal to the packet delay (PACKET DELAY hedge, PDB). Wherein T ₁、T₂, depending on the implementation of the device, represents the left and right boundaries of the resource selection window; processing the time delay of resource selection and data transmission for the terminal device, and There is a one-to-one correspondence between the values of the subcarrier spacing mu _SL used for transmission, as shown in table 1 below.

TABLE 1

Step 4-2, the terminal equipment determines a sensing windowWherein T ₀ is the left boundary representing the perceptual window; Processing the time delay of the perception result for the terminal equipment and The values of (a) and (b) have a one-to-one correspondence with the subcarrier spacing mu _SL used for transmission, as shown in table 2 below.

TABLE 2

In step 4-3, the terminal device determines a threshold value of reference signal received power (REFERENCE SIGNAL RECEIVED power, RSRP). The threshold value of RSRP is related to the priority (prio _TX) of the data to be sent and the priority (prio _RX) indicated by the received SCI, specifically, the threshold value of RSRP corresponding to prio _RX+(prio_TX -1) x 8 serial numbers (index) in the threshold value set of RSRP configured by the resource pool.

In step 4-4, the terminal device initializes an available resource set S _A, where S _A includes all time-frequency resources in the resource selection window.

Step 4-5, when the time-frequency resources meet all the following conditions, excluding the following time-frequency resources from S _A:

condition 1.1. Perceived time slots in the perceived window. It can be understood that the time slot of the terminal device in the transmitting state is not able to be received when the terminal device is in the transmitting state, and thus the transmitting time slot cannot be perceived due to the limitation of the half duplex transceiver;

condition 1.2 assume that the slot has SCI sent by other terminal devices, the SCI indicating a periodic resource reservation for all sub-channels on the slot within the selection window corresponding to the periodic resource reservation. The periodic resource reservation value used by the SCI includes periodic reservation values of all resource pool configurations.

And step 4-6, if the time-frequency resource remained after the elimination of S _A is less than X% of the total resource of the resource selection window, the step 4-4 is re-executed, the resource set is initialized, the re-initialized S _A is consistent with the previously initialized S _A, and the step 2-7 is executed. The value of X% may be configured by the resource pool.

Step 4-7, when the time-frequency resource meets all the following conditions, excluding the time-frequency resource from S _A:

Condition 2.1, the received first stage SCI decoding is successful;

Condition 2.2, performing RSRP measurement by using a PSSCH demodulation reference signal (de-modulation REFERENCE SIGNAL, DMRS) reserved by the received first stage SCI for transmitting a PSSCH time-frequency resource, where the RSRP result is higher than the RSRP threshold value determined in the step 4-3, and the PSSCH time-frequency resource further includes a time-frequency resource reserved by a period, a time-domain resource instruction value (time resource indicator value, TRVI), and a time-frequency resource reserved by a frequency-domain resource instruction value (frequency resource indicator value, FRVI);

Condition 2.3. The time-frequency resources reserved by the received first level SCI (including reservations for consecutive periods, TRVI and FRVI) are within the resource selection window.

In step 4-8, if the time-frequency resources remaining after the exclusion in step _A are less than X% of the total resources of the resource selection window, the threshold value of RSRP determined in step 4-3 above may be raised, for example, 3 decibels (dB) per time, until the time-frequency resources remaining after the exclusion in step _A are greater than or equal to X% of the total resources of the resource selection window.

After the resource selection is performed based on the steps 4-1 to 4-8, the terminal device may notify other terminal devices of the reserved time-frequency resource through the SCI, and the terminal device may send data on the reserved time-frequency resource.

It will be appreciated that in some cases, the transmission resources available in the resource selection window may not be sufficient, thereby affecting the resource selection and thus the communication of the terminal device. For example, the terminal device may be aware using, i.e. using, the resources in the side-link and not communicate. In this case, the terminal device may select resources for perception (i.e., for perception and not for communication) in the resource selection window, in addition to resources for communication in the resource selection window. Accordingly, when the terminal device selects the available resources in the resource selection window, the resources reserved by other terminal devices for communication and the resources reserved for perception are usually excluded, and the remaining resources are used for generating the available resource set. Illustratively, as shown in fig. 5, a User Equipment (UE) #1 reserves resource #1 for sensing, a UE #2 reserves resource #2 for sensing, and a UE #3 can sense SCI of sidelobe transmission in beam #1 of UE #1 and SCI of sidelobe transmission in beam #2 of UE #2 from a sensing window when selecting resources for beam #3, thereby determining that resource #1 and resource #2 are resources for sensing, and thus excluding resource #1 and resource #2 when generating an available resource set.

However, the above operation may result in more resources being excluded, and there is a problem that the remaining resources are not sufficient. Thus, how to guarantee that there are enough resources available in the resource selection window is a hotspot problem discussed at present.

Aiming at the technical problems, the embodiment of the application provides the following technical scheme for ensuring that enough available resources exist in a resource selection window.

The technical scheme of the application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the present application may be applied to various communication systems, for example, a 4th generation (4th generation,4G) mobile communication system, such as a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, such as a new radio, NR) system, and a 5G later evolution communication system, such as a sixth generation (6th generation,6G) mobile communication system, and may also be applied to a wireless fidelity (WIRELESS FIDELITY, wiFi) system, a vehicle-to-arbitrary object (vehicle to everything, V2X) communication system, an inter-device (D2D) communication system, an internet of vehicles communication system, and the like.

The present application will present various aspects, embodiments, or features about a system that may include a plurality of devices, components, modules, etc. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Furthermore, combinations of these schemes may also be used.

In addition, in the embodiments of the present application, words such as "exemplary," "for example," and the like are used to indicate an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term use of an example is intended to present concepts in a concrete fashion.

In the embodiment of the present application, "information", "signal", "message", "channel", and "signaling" may be used in a mixed manner, and it should be noted that the meaning of the expression is matched when the distinction is not emphasized. "of", "corresponding (corresponding, relevant)" and "corresponding (corresponding)" are sometimes used in combination, and it should be noted that the meanings to be expressed are matched when the distinction is not emphasized. Furthermore, references to "/" in this disclosure may be used to indicate an "or" relationship.

In the embodiment of the application, the predefining can be understood as predefining a protocol, for example, predefining a fixed parameter, for example, predefining a value of a certain parameter by the protocol, and specifically, determining the predefined content of the protocol according to the actual situation. Configuration is understood to mean that the network device or the server sends configuration information (such as parameters, values of parameters, correspondence, etc.) to the terminal device through a message (or signaling), so that the terminal device determines the parameters of communication or resources at the time of transmission based on the configuration information. The pre-configuration is similar to the configuration, and it may be understood that the network device or the server sends configuration information (such as parameters, values of parameters, corresponding relations, etc.) to the terminal device through another link (or carrier) different from the side uplink, and may also be understood that the relevant parameters or parameter values are defined, and may also be understood that the relevant parameters or parameter values are written into the terminal device. It may be appreciated that the configuration and pre-configuration may be a configuration of a granularity of a resource pool, a configuration of a granularity of a partial Bandwidth (BWP), or a configuration of a granularity of a cell, which is not limited. In addition, the above parameters and the values of the parameters may be changed or updated.

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 by 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 by the embodiments of the present application is applicable to similar technical problems.

To facilitate an understanding of embodiments of the present application, a communication system suitable for use in embodiments of the present application will first be described.

The communication system comprises a terminal device and/or a network device. It will be appreciated that the terminal device may comprise at least one terminal device. When the terminal device includes a plurality of terminal devices, communication between the plurality of terminal devices can be performed through a side uplink. For example, the terminal device includes a first terminal device and a second terminal device, which may communicate through a side uplink. In addition, the terminal device and the network device may refer to the descriptions related to "terminal device 120" and "network device 110" below, and are not described herein.

In order to facilitate understanding of the embodiments of the present application, an application scenario used in the present application will be described by taking a communication system architecture shown in fig. 6 as an example. Fig. 6 is a schematic diagram of one possible, non-limiting system. As shown in fig. 6, the communication system 6000 includes a radio access network (radio access network, RAN) 100 and a Core Network (CN) 200.RAN 100 includes at least one network device (e.g., 110a and 110b in fig. 6, collectively 110) and at least one terminal device (e.g., 120a through 120j in fig. 6, collectively 120). Other RAN nodes may also be included in the RAN 100, such as wireless relay devices and/or wireless backhaul devices (not shown in fig. 6), and the like. The terminal device 120 is connected to the network device 110 by wireless means. The network device 110 is connected to the core network 200 by wireless or wired means. The core network device in the core network 200 and the network device 110 in the RAN 100 may be different physical devices, or may be the same physical device with integrated core network logic functions and radio access network logic functions.

The RAN 100 may be a third generation partnership project (3rd generation partnership project,3GPP) -related cellular system, for example, a 4th generation (4th generation,4G) mobile communication system, such as a long term evolution (long term evolution, LTE) system, a 5G mobile communication system, such as an NR system, and a 5G later evolution communication system, such as a sixth generation (6th generation,6G) mobile communication system, and may also be applied to a wireless fidelity (WIRELESS FIDELITY, wiFi) system, a vehicle-to-any object (vehicle to everything, V2X) communication system, an inter-device (D2D) communication system, an internet of vehicles communication system, and so on. The RAN 100 may also be an open access network (open radio access network, O-RAN or ORAN), a cloud radio access network (cloud radio access network, CRAN), or a WiFi system. RAN 100 may also be a communication system in which two or more of the above systems are converged.

The terminal device and the network device provided by the embodiments of the present application may be applied to the network device 110 or applied to the terminal device 120. It will be appreciated that figure 6 illustrates only one possible communication system architecture in which embodiments of the present application may be applied, and that other devices may be included in the communication system architecture in other possible scenarios.

The network device 110 is a node in the RAN, which may also be referred to as an access network device, and may also be referred to as a RAN node (or device). The network device 110 is used to assist the terminal in wireless access. The plurality of network devices 110 in the communication system 6000 may be nodes of the same type or different types. In some scenarios, the roles of network device 110 and terminal device 120 are relative, e.g., network element 120i in fig. 6 may be a helicopter or drone, which may be configured as a mobile base station, with network element 120i being a base station for those terminals 120j accessing RAN 100 through network element 120i, but network element 120i being a terminal for base station 110 a. Network device 110 and terminal device 120 are sometimes referred to as communication devices, e.g., network elements 110a and 110b in fig. 6 may be understood as communication devices with base station functionality, and network elements 120a through 120j may be understood as communication devices with terminal functionality.

In one possible scenario, the network device may be a base station (base station), an evolved NodeB (eNodeB), a transmission and reception point (TRANSMITTING AND RECEIVING point, TRP), a transmission point (TRANSMITTING POINT, TP), a next generation base station (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, a satellite, or an Access Point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., and the network device may be deployed in an overhead platform or a satellite, etc., in an access backhaul integrated (INTEGRATED ACCESS AND backhaul) node, a mobile switching center non-terrestrial communication network (non-TERRESTRIAL NETWORK, NTN) communication system. The network device may be a macro base station (e.g., 110a in fig. 6), a micro base station or an indoor station (e.g., 110b in fig. 6), a relay node or a donor node, or a wireless controller in a CRAN scenario. The network device may also be a device-to-device (D2D) communication, a device functioning as a base station in internet of vehicles communication, unmanned aerial vehicle communication, or machine communication. Optionally, the network device may also be a server, a wearable device, a vehicle or an in-vehicle device, etc. For example, the access network device in the vehicle extrapolating (vehicle to everything, V2X) technology may be a Road Side Unit (RSU).

In another possible scenario, a plurality of network devices cooperate to assist a terminal in implementing wireless access, and different network devices implement part of the functionality of a base station, respectively. For example, the network device may be a Centralized Unit (CU), a Distributed Unit (DU), a CU-Control Plane (CP), a CU-User Plane (UP), or a Radio Unit (RU), etc. The CUs and DUs may be provided separately or may be included in the same network element, e.g. in a baseband unit (BBU). The RU may be included in a radio frequency device or unit, such as in a remote radio unit (remote radio unit, RRU), an active antenna processing unit (ACTIVE ANTENNA unit, AAU), or a remote radio head (remote radio head, RRH). It is understood that the network device may be a CU node, or a DU node, or a device comprising a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited herein.

In different systems, CUs (or CU-CP and CU-UP), DUs or RUs may also have different names, but the meaning will be understood by those skilled in the art. For example, in ORAN systems, a CU may also be referred to as an O (open) -CU, a DU may also be referred to as an O-DU, a CU-CP may also be referred to as an O-CU-CP, a CU-UP may also be referred to as an O-CU-UP, and a RU may also be referred to as an O-RU. For convenience of description, the present application is described by taking CU, CU-CP, CU-UP, DU and RU as examples. Any unit of CU (or CU-CP, CU-UP), DU and RU in the present application may be implemented by a software module, a hardware module, or a combination of software and hardware modules.

In the embodiment of the application, the form of the network device is not limited, and the device for realizing the function of the network device can be the network device, or can be a device capable of supporting the network device to realize the function, such as a chip system. The apparatus may be installed in or used in cooperation with a network device.

The terminal device 120 may also be referred to as a UE, a Mobile Station (MS), a Mobile Terminal (MT), a user equipment, a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment, or a device for providing voice or data connectivity to a user, or may be an internet of things device. For example, the terminal device includes a handheld device having a wireless connection function, an in-vehicle device, and the like. Currently, the terminal device may be a mobile phone, a tablet (Pad), a computer with a wireless transceiving function, a notebook, a palm, a mobile internet device (mobile INTERNET DEVICE, MID), a wearable device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), a vehicle-mounted device (e.g., an automobile, a bicycle, an electric car, an airplane, a ship, a train, a high-speed rail, etc.), a satellite terminal, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a point of sale (POS) device, a customer terminal device (customer-premises equipment, CPE), a wireless terminal in industrial control, a smart home device (e.g., a refrigerator, a television, an air conditioner, an ammeter, etc.), a smart robot, a robot arm, a workshop device, a wireless terminal in a drone, a wireless terminal in a telemedicine, a wireless terminal in a smart grid (SMART GRID), a wireless terminal in transportation security, a wireless terminal in a smart home, or a wireless terminal in a smart home, a flying device (e.g., a smart robot, a hot air balloon, etc.). The terminal device of the present application may be a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit that is built in a vehicle as one or more components or units, and the vehicle may implement the communication method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit. The terminal device may also be other devices with terminal functions, for example, the terminal device may also be a device functioning as a terminal function in D2D communication.

The embodiment of the application does not limit the device form of the terminal, and the device for realizing the function of the terminal device can be the terminal device or can be a device capable of supporting the terminal device to realize the function, such as a chip system. The device can be installed in or matched with the terminal equipment. In the embodiment of the application, the chip system can be composed of chips, and can also comprise chips and other discrete devices.

It should be noted that the solution in the embodiment of the present application may also be applied to other communication systems, and the corresponding names may also be replaced by names of corresponding functions in other communication systems. 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 by 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 by the embodiments of the present application is also applicable to similar technical problems.

In a communication system, when a terminal device determines an available resource set in a side uplink resource pool, reserved resources reserved by other terminals for perception and other than communication can be reserved in the available resource set. Thus, enough resources in the available resource set can be ensured to be used, namely, enough available transmission resources in the resource selection window can be ensured.

It is convenient to understand that the communication method provided by the embodiment of the present application will be specifically described below with reference to fig. 7 to 17.

Exemplary, fig. 7 is a schematic flow chart of a communication method according to an embodiment of the present application. The method may be applicable to communication between a first terminal device and a second terminal device in the above communication system or may be applicable to perception of the first terminal device in the above communication system.

As shown in fig. 7, the flow of the communication method is as follows:

the first terminal device determines a first set of available resources in a side uplink resource pool S701.

The side uplink resource pool is a set of time-frequency resources configured by the network device for the first terminal device, and specific reference may be made to the description of the foregoing "3. Resource pool", which is not repeated herein.

The first set of available resources comprises at least one time-frequency resource that the first terminal device may use, i.e. the first terminal device may be aware or communicate on any of the at least one resource. The first set of available resources may comprise first reserved resources (described below), i.e. the at least one resource may comprise first reserved resources.

Sensing may be achieved by transmitting a second signal and receiving a first reflected signal, the first reflected signal being the signal reflected after the second signal encounters the object. That is, when sensing, the terminal device needs to receive the first reflected signal reflected by the object after the second signal is sent, so as to determine relevant characteristics of the object, such as position, distance, and the like, according to the second signal and the first reflected signal. Sensing may also be implemented by receiving signals sent by other devices, for example, the device #1 receives signals #1 sent by other known other devices, and since the first terminal device knows the signals #1, it can determine whether there are sensed objects around by using information such as signal strength (e.g. Reference Signal Received Power (RSRP)) and azimuth angle of the received signals # 1. It will be appreciated that in embodiments of the present application, sensing may also be understood as detection (detect), i.e. both may be replaced.

The communication may be performed by transmitting the third signal, or the communication may be performed by transmitting the third signal and receiving a fourth signal, the fourth signal being transmitted by the receiver after receiving the third signal. That is, the terminal device may transmit a signal, such as a broadcast by the terminal device, during communication, or may transmit a signal and receive a signal returned by the receiving party based on the signal, to complete communication with the receiving party. It can be seen that the sender and the receiver can be the same device during sensing and different devices during communication if present. It will be appreciated that in the above description of sensing and communication, the signal may be replaced by information, for example, the second signal may be replaced by second information, where a first reflected signal corresponding to the second information may be received, where the first reflected signal is a signal reflected after the signal corresponding to the second information reaches the object, and for example, the third signal may be replaced by third information.

When the reserved resource is a usable resource reserved by the terminal device, that is, when the terminal device can reserve a reserved resource (designated as reserved resource # 1) corresponding to a certain time (designated as time # 1) and the reserved resource #1 is determined to be usable near the time #1, communication or sensing is performed on the reserved resource #1, that is, the reserved resource #1 is used. Or, the reserved resource is a resource for communication or perception at a future time reserved by the terminal device. The manner in which the reservation of resources is determined to be available may be referred to in the foregoing description of "4. Resource selection manner of side links", and will not be described in detail herein. Of course, the reserved resources may be determined in other manners, which are not limited by the embodiment of the present application. The first reserved resource is a resource reserved by other terminal devices except the first terminal device. The first reserved resource is for awareness and the first reserved resource is not for communication. That is, the terminal device that reserved the first reserved resource will perceive and not communicate at the first reserved resource. It will be appreciated that in some embodiments, the "first reserved resource is used for awareness and the first reserved resource is not used for communication" has the same meaning as the "first reserved resource is used for awareness".

It is appreciated that the first reserved resource may be reserved into the first set of available resources by the role of the reserved resource. That is, reserved resources for awareness and not for communication may be reserved into the set of available resources according to the role of reserved resources. The first reserved resources may also be reserved to the first set of available resources by means of resource selection on the side-link. That is, the signal reception power corresponding to the first reserved resource may be compared with the signal reception power (i.e., the first signal reception power threshold) for resource exclusion of reserved resources for sensing and not for communication, thereby reserving the first reserved resource. This mode will be described below.

In the selection of the resources of the side uplink, the first terminal device may perform resource exclusion on reserved resources (such as first reserved resources) reserved by other terminal devices for sensing and not for communication according to the first signal receiving power threshold. That is, in the aforementioned step 4-7 of the resource selection method of the "4. Side uplink", when excluding the time-frequency resources from the available resource set (i.e., the first available resource set), resource exclusion may be performed on reserved resources that are used for sensing and are not used for using the first signal reception power threshold.

For example, when excluding the time-frequency resource from the available resource set, the signal receiving power corresponding to the reserved resource for sensing and not for communication may be compared with the first signal receiving power threshold, if the signal receiving power (such as RSRP) corresponding to the reserved resource is smaller than the first signal receiving power threshold, this indicates that the influence on the signal sent by the first terminal device is smaller when other terminals sense on the reserved resource, such as interference is smaller, where the reserved resource is available, i.e. the reserved resource does not need to be excluded from the available resource set, and if the signal receiving power corresponding to the reserved resource for sensing and not for communication is greater than or equal to the first signal receiving power threshold, this indicates that the influence on the signal sent by the first terminal device is larger when other terminals sense on the reserved resource, such as interference is larger, where the preset resource is not available, i.e. the reserved resource needs to be excluded from the available resource set.

It can be seen that, when the first terminal device performs resource exclusion, the first reserved resource whose signal receiving power is smaller than the first signal receiving power threshold may be reserved in the first available resource set, that is, the first reserved resource is not excluded from the first available resource set. That is, the signal received power corresponding to the first reserved resource is smaller than the first signal received power threshold. It may be understood that the signal receiving power corresponding to the first reserved resource may be the receiving power of a PSSCH demodulation reference signal measured by the first terminal device, where the PSSCH demodulation reference signal is a PSSCH demodulation reference signal of a time-frequency resource reserved by the first-stage SCI received by the first terminal device, and the SCI has a corresponding relationship with the first reserved resource. The first signal received power threshold may resource exclude reserved resources for sensing and not for communication in determining the set of available resources. The value of the first signal receiving power threshold can be set according to practical situations, and is not limited.

In one possible implementation, the first signal received power threshold may be greater than the second signal received power threshold. The second signal received power threshold is used to resource exclude reserved resources for communication in determining the set of available resources. And when the second signal receiving power threshold is data transmission, the signal receiving power threshold determined according to the priority of the data to be transmitted and the priority of the reserved resource (i.e. the priority indicated by SCI) may be specifically referred to the description of "4. Resource selection method of side uplink" described above, and will not be repeated here. That is, the second signal reception power threshold may be understood as a corresponding signal reception power threshold at the time of data transmission. The first signal receiving power threshold is larger than the second signal receiving power threshold, and reserved resources which are used for sensing and are not used for communication can be reserved preferentially when the resource exclusion is determined, namely reserved resources which are used for sensing and are not used for communication are not excluded, so that enough resources in the available resource set can be ensured to be used by the first terminal equipment.

In addition, there are various ways of determining the use of the first signal reception power threshold, such as determining the use of the first signal reception power threshold by the role of reserved resources (i.e., for sensing and not for communication), and determining the use of the first signal reception power threshold by the priority of reserved resources. The following is a description of the case.

And 1, determining a first signal receiving power threshold according to the reserved resource.

In this case, the first signal receiving power threshold has a correspondence with a reserved resource that is perceived and not used for communication, and the correspondence may be configured, preconfigured, or predefined by a protocol, without limitation. When the first terminal device performs resource exclusion, it may determine that the reserved resource is subjected to resource exclusion by using the first signal receiving power threshold according to the reserved resource used for sensing and not used for communication and the corresponding relationship.

Case 2. Determining the first signal received power threshold according to the correspondence between the first signal received power threshold and the priority of reserved resources for sensing and not for communication.

In this case, the first signal reception power threshold has a correspondence with the priority of reserved resources for sensing and not for communication, which can be configured, preconfigured or predefined by a protocol without limitation.

The priority of reserved resources for sensing and not for communication may be configured, pre-configured or pre-defined by a protocol, and the priority may be lower than or equal to a pre-set priority. For example, the preset priority may be a priority of the reserved resources for communication in case that the priority of the reserved resources for sensing and not for communication is lower than the preset priority, and the preset priority may be lower than the priority of the reserved resources for communication in case that the priority of the reserved resources for sensing and not for communication is equal to the preset priority. The priority of reserved resources for communication may be referred to the prior art and will not be described here in detail. It will be appreciated that the lower the priority, the greater the signal reception power threshold determined in accordance with the priority, and the greater the signal reception power threshold, the easier, i.e. less likely to be excluded, the reserved resources to be compared with the signal reception power threshold. In this way, the first signal receiving power threshold can be made larger than the signal receiving power threshold (i.e. the second receiving power threshold) for performing resource exclusion on reserved resources for communication, so that the resources for sensing and not for communication can be reserved as much as possible, and enough resources in the available resource set are ensured to be used by the terminal equipment.

It will be appreciated that the first reserved resource is a resource for awareness and not for communication, that is, the priority of the first reserved resource may determine the first signal reception power threshold, that is, the first signal reception power threshold is determined according to the priority of the first reserved resource, and the priority of the first reserved resource is lower than or equal to the preset priority. In addition, the preset priority is a priority of the reserved resource for communication in the case where the priority of the first reserved resource is lower than the preset priority, and the preset priority is lower than the priority of the reserved resource for communication in the case where the priority of the first reserved resource is equal to the preset priority.

S702, the first terminal equipment sends a first signal according to a first available resource set.

The first terminal device transmitting the first signal according to the first available resource set may specifically include determining a first resource from the first available resource set and transmitting the first signal on the first resource.

The first resource may be any one of at least one time-frequency resource included in the first available resource set, and specifically may be flexibly set according to an actual situation. The first signal may be a signal for communication, that is, the first terminal device may implement communication by sending the first signal, or the first signal may be a signal for sensing and not for communication, that is, the first terminal device may implement sensing by sending the first signal, and the first signal may be set correspondingly according to actual situations, without limitation. It will be appreciated that the second terminal device may receive the first signal from the first terminal device when the first signal is a signal for communication. Furthermore, the first signal may also be understood as first information, i.e. the first signal is exchangeable with the first information. When the first information is sent, the first information may be information for communication, or may be information for sensing and not for communication, and specifically, the first information may be set correspondingly according to actual situations, without limitation.

It can be seen that after determining the first set of available resources, the first terminal device may determine a resource from the first set of available resources to implement communication or awareness.

In one possible implementation, the first resource is a first reserved resource, and transmitting the first signal on the first resource may specifically include transmitting the first signal on the first reserved resource to the first direction. That is, the first terminal may implement communication or awareness in the first direction by transmitting the first signal on the first reserved resource. It will be appreciated that the first direction may be the direction of a first beam, which may be a beam comprised by the first terminal device.

The direction of the first beam may include the direction of the main lobe in the first beam or the direction of the first side lobe in the first beam. It can be understood that the direction of the first beam may be the direction of the main lobe in the first beam when the main lobe is used for communication or sensing, and the direction of the first beam may be the direction of the main lobe in the first beam or the direction of the first side lobe in the first beam when the side lobe is used for communication or sensing, which may be specifically determined according to the actual situation. For example, the side lobes may be communicated or perceived, and the first set of available resources is the set of available resources determined for the first side lobe in the first beam, then the first direction is the direction of the first side lobe.

In summary, in the embodiment of the present application, the first reserved resource that is used for sensing and is not used for communication may be reserved in the first available resource set, that is, the first reserved resource is set as a resource that can be used by the first terminal device. In this way, it can be ensured that sufficient resources are available in the first set of available resources, i.e. that sufficient resources are available in the resource selection window.

Optionally, in combination with the above embodiment, before determining the first set of available resources in the side-uplink resource pool, the method may further include receiving first side-uplink control information, the first side-uplink control information indicating that the first reserved resources are for awareness and the first reserved resources are not for communication.

The terminal device (denoted as terminal device # 1) that transmitted the first side uplink control information is a terminal device that has reserved the first reserved resource. It will be appreciated that after reserving the first reserved resource, the terminal device #1 may inform other terminals that the first reserved resource has been reserved by transmitting the first side uplink control information, and that the first reserved resource is used for sensing and not used for communication. In this way, the first terminal device can determine the role of the first reserved resource according to the first side link control information, namely, the role of the first reserved resource is used for sensing and not used for communication, and determine whether the first reserved resource is available according to the role of the first reserved resource.

Optionally, in combination with the above embodiment, determining the first set of available resources in the side uplink resource pool may specifically include determining the first set of available resources in the side uplink resource pool in case the proportion of available resources is less than a proportion threshold.

The available side resources may be the ratio of the remaining resources after the reserved resources for communication and the reserved resources for sensing and not for communication to all the resources corresponding to the resource selection window in the terminal device. The proportion threshold value can be flexibly set according to the ratio of the preset resource quantity to the whole resources, and particularly according to the actual situation. It will be appreciated that a proportion of resources that can be used that is less than the proportion threshold may indicate that the current number of unreserved resources is small, i.e. that the unreserved resources are insufficient, at which point reserved resources for perception and not for communication may be reserved in the set of available resources, e.g. the first reserved resources may be reserved in the first set of available resources. In this way, it can be ensured that sufficient resources are available in the first set of available resources. Conversely, if the proportion of the available resources is greater than or equal to the proportion threshold, it may indicate that the current unreserved resources can meet the use of the terminal device, and the reserved resources for sensing and not for communication are not required to be reserved in the available resource set.

In addition, if the first terminal device needs to reserve resources for sensing, and the direction of the side lobe in the beam of the first terminal device is the same or partially the same as the direction of the main lobe in the adjacent beam of the beam, the resources can be reserved only on part of the beams, that is, the side lobe in the beam can be used for sensing in the direction of the main lobe in the adjacent beam of the beam. The partial identity may be understood that the direction of the side lobe in the beam is mostly identical to the direction of the main lobe in the beam adjacent to the beam, for example, the ratio of the side lobe in the beam and the direction of the main lobe in the beam adjacent to the beam to the direction of the main lobe reaches a preset value, where the preset value may be 90%, or 95%, or 98%, and specifically may be set according to the actual situation, and is not limited. For example, as shown in fig. 8, the first terminal device includes 4 beams, that is, a beam #a1 to a beam #a4, and the direction of a side lobe in each beam is the same as the direction of a main lobe in an adjacent beam of the beam, and if the direction of a side lobe in a beam #a2 is the same as the direction of a main lobe in a beam #a1, resources may be reserved on a beam #a1 and a beam #a3 for sensing, or resources may be reserved on a beam #a2 and a beam #a4 for sensing. In this way, resources can be saved.

Exemplary, fig. 9 is a schematic flow chart of a communication method according to an embodiment of the present application. The method may be applicable to communication between a first terminal device and a second terminal device in the above communication system, and may be applicable to perception of the first terminal device in the above communication system.

As shown in fig. 9, the flow of the communication method is as follows:

s901, the first terminal device determines a first time domain window in the side uplink resource pool.

The first time domain window may include first time domain resources and second time domain resources. The first time domain resource and the second time domain resource may be used for sensing, i.e. the first terminal device may sense on the first time domain resource and the second time domain resource. The first time domain window may further include other time domain resources, and may specifically be set according to actual situations. For example, when the first terminal device includes X beams, besides the first time domain resource and the second time domain resource may be set in the first time domain window, X-2 time domain resources may also be set in the first time domain window, so that the first terminal device may perform sensing in different directions on the X resources in the first time domain window through each beam, that is, implement omni-directional sensing. It will be appreciated that the relationship of the X resources to the directions of the X beams may be configured, pre-set, or pre-defined by a protocol, without limitation.

In one possible implementation, the first time domain resource and the second time domain resource are located in Q time domain resources, the Q time domain resources are located in a first time domain window,N is the number of beams used for sensing, M is the number of side lobes in each of the beams used for sensing,For rounding up, N is an integer greater than 1, M is a positive integer, and Q is a positive integer greater than or equal to 2.

For example, as shown in fig. 10, the first terminal device includes 8 beams for sensing, i.e., beam #b1-beam #b8, each beam includes one main lobe and one side lobe, and 4 time domain resources, i.e., resource #b1-resource #b4, may be set in the first time domain window, and the 4 time domain resources may be used for sensing beam #b2, beam #b4, beam #b6 and beam #b8, respectively.

It can be understood that in the scene where side lobe sensing exists, if the side lobe in the beam is the same or partially the same as the main lobe in the adjacent beam of the beam, sensing in the direction of the main lobe in the adjacent beam of the beam can be achieved through the side lobe in the beam, that is, fewer than all resources for sensing can be set in the first time domain window, so that omni-directional sensing is achieved. This part is the same as that described above with reference to the embodiment shown in fig. 7, and will not be described again here. In this way, resources can be saved.

Furthermore, when the first terminal device has a periodic sensing requirement and needs to perform omni-directional sensing, i.e. sensing operation on all beams, the first time domain window may be periodically configured in the side uplink resource pool. In this case, the period of the first time domain window may be determined according to the sensing period. Illustratively, the sensing period is 100 milliseconds (ms), and the sensing operation needs to be completed within a certain time (e.g., 60 ms), at this time, the medium access control (medium access control, MAC) layer may indicate to the physical layer a period value and a window value, where the period value is the value of the sensing period, and the window value may be the duration of the first time domain window. It will be appreciated that the window value may also be configured, pre-configured, or pre-defined by a protocol, without limitation.

S902, the first terminal device sends first information to a first direction on a first time domain resource.

The first direction is the direction of the first beam. When the first beam includes a main lobe, the first direction is an angle range corresponding to the main lobe, and when the first beam includes the main lobe and the side lobe, the first direction is an angle range formed by the main lobe and the side lobe, for example, when the first beam includes a main lobe #a1 as shown in fig. 11, the first direction is an angle range corresponding to the main lobe #a1, and when the first beam includes a main lobe #b1 and a side lobe #b2 as shown in fig. 12, the first direction is an angle range formed by the main lobe #b1 and the side lobe #b2. The first beam may be a beam comprised by the first terminal device.

The first information may be used for perception. The sensing is realized by transmitting the first signal and receiving the first reflected signal, and the first reflected signal is a signal reflected after the first signal encounters the object, which can be specifically described with reference to the foregoing "S701", and will not be described herein. It can be seen that the first terminal device can perceive in a first direction with the first information on the first time domain resource.

In one possible implementation, the first information may also be used for communication. The communication is realized by transmitting the second signal, or by transmitting the second signal and receiving the third signal, wherein the third signal is transmitted by the receiver after receiving the second signal, and the description of the second signal is referred to in the foregoing "S701" and will not be repeated here. That is, the first terminal device may communicate with the second terminal device located in the first direction while perceiving in the first direction through the first information, i.e., the perceiving and communicating are implemented through the first information, on the first time domain resource. In this case, the second terminal device may receive the first information from the first terminal device.

S903, the first terminal device sends second information to the second direction on the second time domain resource.

The second direction is the direction of the second beam. When the second beam includes a main lobe, the second direction is an angle range corresponding to the main lobe, and when the second beam includes a main lobe and a side lobe, the second direction is an angle range formed by the main lobe and the side lobe, and the second direction is similar to the first direction, and specific reference may be made to the description of the foregoing "S902" and will not be repeated here. The second beam may be a beam comprised by the first terminal device. The second beam is different from the first beam described above, i.e. the second direction is different from the first direction. The second direction being different from the first direction may be understood as the second direction being completely different from the first direction, e.g. the second beam being a beam in the opposite direction to the first direction, where the second direction is completely different from the first direction, or the second direction being the same as the first direction in a part of the directions and being different from the first direction, e.g. the side lobe of the second beam being the same as the main lobe of the first beam, the main lobe of the second beam being different from the side lobe of the first beam, where the second direction is the same as the first direction in a part of the directions and being different in a part of the directions, as shown in fig. 13. The second information may be used for sensing, i.e. the first terminal device may sense in a second direction on the second time domain resource by means of the second information.

In one possible implementation, the second information may be used for sensing may specifically include the second information being used for sensing and the second information not being used for communication. That is, the first terminal device may use the second information to sense in the second direction without communication. It will be appreciated that in some embodiments, "second information is used for perception and second information is not used for communication" has the same meaning as "second information is used for perception".

In summary, in the embodiment of the present application, a first time domain window may be set for the first terminal device, so that the first terminal device can use the first time domain resource and the second time domain resource in the first time domain window to perform sensing in different directions. Thus, when the first terminal equipment has a sensing requirement, sensing can be realized through the time domain resources in the first time domain window.

It will be appreciated that, in combination with the above embodiment, corresponding time domain resources may be configured for at least a portion of the beams of the first terminal device in the first time domain window, i.e. one time domain resource may be configured for each of the at least a portion of the beams in the first time domain window. For the case of the sense of unity, if there is a communication requirement for a beam (denoted as a beam # 1) in at least some of the beams, that is, the beam #1 has been communicated and is perceived at the same time as the communication, that is, the direction of the beam #1 has been perceived, then there is no need to use the time domain resource configured for the beam #1 for the perception. For example, the first terminal device has 8 beams, that is, beams #c1 to #c8, and the 8 beams are configured with one time domain resource in the first time domain window, and if there is a communication requirement for beam c#1 and communication is already performed and sensing is performed while the communication is performed, sensing on time domain resource #c1 is not required, that is, time domain resource #c1 may not be used.

In addition, for the case of side lobe sensing, if a main lobe or any side lobe in the beam senses on a time domain resource in a first time domain window, sensing information is not required to be sent on the time domain resource for sensing, and if the main lobe or the side lobe in the beam does not sense on the time domain resource in the first time domain window, the main lobe or the side lobe which does not sense in the beam is required to send sensing information on the time domain resource for sensing.

For example, with continued reference to fig. 10, the first terminal device has 8 beams, i.e. beam #b1-beam #b8, each beam comprising a main lobe and a side lobe, and 4 time domain resources, i.e. resources #b1-resources #b4, are set in the first time domain window, which are used by beam #b2, beam #b4, beam #b6 and beam #b8, respectively. If communication is performed using the main lobe in beam #b2 and sensing is performed using the side lobe in beam #b2 in the first time domain window, sensing using resource #b1 is not necessary, and if communication is performed using the main lobe in beam #b2 and sensing is not performed using the side lobe in beam #b2 in the first time domain window, sensing is necessary using the side lobe in beam #b2 in resource #b1.

Exemplary, fig. 14 is a schematic flow chart of a communication method according to an embodiment of the present application. The method may be applied to communication between a terminal device and a network device in the above communication system, or may be applied to communication between a first terminal device and a second terminal device in the above communication system.

As shown in fig. 14, the flow of the communication method is as follows:

S1401, the first device transmits a reference signal. Correspondingly, the first terminal device receives the reference signal.

The first device may be a network device or a second terminal device, and may specifically be determined according to an actual situation, without limitation.

The reference signal may be a synchronization signal and a physical broadcast channel block (SSB), a channel state information reference signal (CHANNEL STATE information-REFERENCE SIGNAL, CSI-RS), or other reference signals, which may be specifically set according to practical situations, without limitation.

S1402 determines that no beam failure has occurred when the received power of the reference signal is greater than the first received power.

The first received power is a difference between the received power of the first data and the first power. The first data may be downlink data or sidestream data recently received before the reference signal is received, and may specifically be determined according to practical situations, for example, if the first terminal device receives the reference signal from the network device and determines whether the beam of the network device fails, the first data may be downlink data recently received before the reference signal is received, and if the first terminal device receives the reference signal from the second terminal device and determines whether the beam of the second terminal device fails, the first data may be sidestream data recently received before the reference signal is received. The received power of the first data may be measured by the first terminal device when receiving the first data, and the specific reference may be made to the prior art, which is not described herein. The first power is a difference between a power of a main lobe in a beam receiving the first data and a power of a side lobe in a beam receiving the reference signal. It can be seen that the received power of the first data may represent the power of the main lobe in the beam, the first power may represent the difference between the power of the main lobe and the power of the side lobe in the beam, and thus the first received power may represent the power of the side lobe in the beam.

Beam failure may be understood as the first terminal device determining whether a beam failure exists by receiving a reference signal from the first device. For example, the first device may transmit reference signals on resources #e1 to #e4 through beams #e1 to #e4, respectively, and the first device may receive the reference signals from the first device on resources #e1 to #e4, and if the first terminal device receives the reference signals on resources #e1 to #e3, it is considered that no beam failure occurs, and if the first terminal device does not receive the reference signals on resources #e4, it is considered that beam failure occurs, that is, beam failure occurs to beam #e4. When there is a sidelobe sensing, the first terminal device may have erroneous judgment when performing beam failure judgment. The following will describe a specific example.

As shown in fig. 15, the network device sends reference signals on the resources #f1- #f4 through the beams #f1- #f4, and each of the beams #f1- #f4 includes a main lobe and a side lobe, and the direction of the main lobe in each beam is the same as the direction of the side lobe in the beam adjacent to the beam, e.g., the direction of the main lobe in the beam #f1 is the same as the direction of the side lobe in the beam #f2. The first terminal device receives the reference signal from the network device on resource #f1-resource #f4. The first terminal device does not receive the reference signal sent by the network device on the resource #f2 through the beam #f2, but receives the reference signal sent by the side lobe of the beam #f3, at this time, the first terminal device mistakes the received reference signal sent by the side lobe of the beam #f3 as the received reference signal sent by the beam #f2, that is, mistakes that the beam #f2 is not sent, and failure feedback is not triggered, thereby affecting subsequent information transmission.

It may be understood that the received power of the reference signal being greater than the first received power may indicate that the received power of the reference signal is greater than the power of the side lobe, and that the power of the main lobe is greater than the power of the side lobe may indicate that the reference signal received by the first terminal device is transmitted by the main lobe in the beam, that is, no beam failure occurs. In addition, when the received power of the reference signal is less than or equal to the first received power, it may indicate that the received power of the reference signal is less than or equal to the power of the side lobe, that is, it may indicate that the reference signal received by the first terminal device is transmitted by the side lobe in the adjacent beam, that is, beam failure occurs.

In summary, in the embodiment of the present application, the first terminal device compares the received power of the received reference signal with the first received power when there is a side lobe sensing, and when the received power of the reference signal is greater than the first received power, it is accurately determined that no beam failure occurs, so that misjudgment on the beam failure can be avoided, and subsequent communication is affected.

Optionally, in combination with the above embodiment, the communication method may further include the first device sending the first information. Correspondingly, the first terminal device receives the first information. Wherein the first information indicates a first power. That is, the first power may be configured for the first terminal device by the first device. In this way, the first power can be flexibly configured according to the actual situation. It may be appreciated that the first power may be preset or predefined by a protocol, and specifically may be set according to an actual situation, without limitation.

Further, the first information is downlink control information, or side-downlink control information. The first information may be downlink control information if the first device is a network device, and may be side downlink control information if the first device is a second terminal device. Therefore, the information in the prior art can be multiplexed to indicate the first power, so that the implementation difficulty can be reduced. Of course, the first information may also be multiplexed with other information in the prior art, or may be a new message, which may be specifically set according to the actual situation, without limitation.

Furthermore, in the prior art, in order to avoid sidelobe interference, a constraint is placed on the transmit power of the main lobe in the beam, i.e. the transmit power of the main lobe needs to be in the range of equivalent omni-directional radiated power (equivalent isotropic radiated power, EIRP) +/-2.2 dB. The EIRP is the power that the device can reach, and reference may be made to the prior art specifically, and details are not repeated here. However, in the embodiment of the application, because of side lobe perception, interference suppression on side lobes is not needed, namely, the transmission power of the main lobe can be set without the constraint, or the transmission power of the main lobe can be set within the range of EIRP +/-XdB, and X is more than 2.2.

The communication method provided by the embodiment of the application is described in detail above with reference to fig. 7 to 15. A communication apparatus for performing the communication method provided by the embodiment of the present application is described in detail below with reference to fig. 16 to 17.

Fig. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application. Illustratively, as shown in FIG. 16, the communication device 1600 includes a transceiver module 1601 and a processing module 1602. For convenience of explanation, fig. 16 shows only major components of the communication apparatus.

The transceiver module 1601 is configured to perform a transceiver function of the communication method, and the processing module 1602 is configured to perform a function of the communication method other than the transceiver function.

Alternatively, the transceiver module 1601 may include a transmitting module (not shown in fig. 16) and a receiving module (not shown in fig. 16). The transmitting module is configured to implement a transmitting function of the communication device 1600, and the receiving module is configured to implement a receiving function of the communication device 1600.

Optionally, the communication device 1600 may also include a memory module (not shown in fig. 16) in which programs or instructions are stored. The processing module 1602, when executing the program or instructions, enables the communication apparatus 1600 to perform the functions of the terminal device in the communication method described above.

It is to be appreciated that the communication apparatus 1600 may be a terminal device, a chip (system) or other component or assembly that may be disposed in a terminal device, or an apparatus that includes a terminal device, which is not limited in this regard.

In addition, the technical effects of the communication device 1600 may refer to the technical effects of the above-mentioned communication method, and will not be described herein.

Fig. 17 is a schematic diagram of a second structure of a communication device according to an embodiment of the present application. The communication means may be, for example, a terminal device, or may be a chip (system) or other part or component that may be provided in the terminal device. As shown in fig. 17, the communication device 1700 may include a processor 1701. Optionally, the communication device 1700 may also include a memory 1702 and/or a transceiver 1703. The processor 1701 is coupled to the memory 1702 and the transceiver 1703, such as by a communication bus.

The following describes each constituent element of the communication apparatus 1700 in detail with reference to fig. 17:

The processor 1701 is a control center of the communication apparatus 1700, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 1701 is one or more central processing units (central processing unit, CPU), or may be an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the application, such as one or more microprocessors (DIGITAL SIGNAL processors, DSPs), or one or more field programmable gate arrays (field programmable GATE ARRAY, FPGAs).

Alternatively, the processor 1701 may perform various functions of the communication apparatus 1700, such as performing the communication methods described above, by running or executing a software program stored in the memory 1702 and invoking data stored in the memory 1702.

In a particular implementation, the processor 1701 may include one or more CPUs, such as CPU0 and CPU1 shown in fig. 17, as an embodiment.

In a specific implementation, as an embodiment, the communication device 1700 may also include a plurality of processors, such as the processor 1701 and the processor 1704 shown in fig. 17. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 1702 is configured to store a software program for executing the solution of the present application, and the processor 1701 controls the execution of the software program, and the specific implementation may refer to the above method embodiment, which is not described herein again.

Alternatively, memory 1702 may be, but is not limited to, read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, as well as electrically erasable programmable read-only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 1702 may be integral to the processor 1701 or may exist separately and be coupled to the processor 1701 through interface circuitry (not shown in fig. 17) of the communication device 1700, as embodiments of the present application are not limited in detail.

A transceiver 1703 for communication with other communication devices. For example, the communication device 1700 is a terminal, and the transceiver 1703 may be used to communicate with a network device or another terminal device. As another example, the communication device 1700 is a network device, and the transceiver 1703 may be used to communicate with a terminal or another network device.

Optionally, the transceiver 1703 may include a receiver and a transmitter (not separately shown in fig. 17). The receiver is used for realizing the receiving function, and the transmitter is used for realizing the transmitting function.

Optionally, the transceiver 1703 may include a transmitter, a receiver, radio frequency circuitry, an antenna, and input-output devices (not separately shown in fig. 17). The transmitter is used for realizing the transmitting function, the receiver is used for realizing the receiving function, the radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal, the antenna is mainly used for receiving and transmitting the radio frequency signal in the form of electromagnetic waves, the input and output device can comprise a touch screen, a display screen, a keyboard and the like, and the input and output device is mainly used for receiving data input by a user and outputting the data to the user. It should be noted that some kinds of terminal apparatuses may not have an input/output device.

When data needs to be sent, the processor carries out baseband processing on the data to be sent and then outputs a baseband signal to the radio frequency circuit. Then, the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna. The radio frequency circuit converts the radio frequency signal into a baseband signal and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. In the actual end device product there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device, etc. The memory may be provided separately from the processor or may be integrated with the processor, as the embodiments of the application are not limited in this respect.

In the embodiment of the application, the antenna and the radio frequency circuit with the receiving and transmitting functions can be regarded as a receiving and transmitting module of the terminal equipment, and the processor with the processing function can be regarded as a processing module of the terminal equipment.

Alternatively, the transceiver 1703 may be integrated with the processor 1701 or may exist separately and be coupled to the processor 1701 through an interface circuit (not shown in fig. 17) of the communication device 1700, which is not specifically limited by the embodiment of the present application.

When the communication device 1700 is a communication chip, the transceiver 1703 may be an input interface and an output interface of the chip. The input interface is used for realizing the receiving function, and the output interface is used for realizing the transmitting function. The processor may be an integrated processing module or microprocessor or an integrated circuit on the chip. The sending operation of the network device or the terminal device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the network device or the terminal device in the above method embodiment may be understood as the input of the chip.

It will be appreciated that the configuration of the communication device 1700 shown in fig. 17 is not limiting of the communication device, and that an actual communication device may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

In addition, the technical effects of the communication device 1700 may refer to the technical effects of the method described in the above method embodiments, and will not be described herein.

It should be appreciated that the processor in embodiments of the application may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of random access memory (random access memory, RAM) are available, such as static random access memory (STATIC RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (doubledata RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B, and may mean that a exists alone, while a and B exist alone, and B exists alone, wherein a and B may be singular or plural. In addition, the character "/" herein generally indicates that the associated object is an "or" relationship, but may also indicate an "and/or" relationship, and may be understood by referring to the context.

The various features of the different embodiments described above may be referenced to each other to form new embodiments.

In the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a, b, or c) of a, b, c, a-b, a-c, b-c, or a-b-c may be represented, wherein a, b, c may be single or plural.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, the method comprising:

Determining a first set of available resources in a side uplink resource pool, the first set of available resources including first reserved resources, the first reserved resources being for awareness and the first reserved resources not being for communication;

And sending a first signal according to the first available resource set.

2. The method of claim 1, wherein prior to determining the first set of available resources in the side-uplink resource pool, the method further comprises:

First side-link control information is received, the first side-link control information indicating that the first reserved resource is for awareness and the first reserved resource is not for communication.

3. The method according to claim 1 or 2, wherein the signal received power corresponding to the first reserved resource is smaller than a first signal received power threshold, and the first signal received power threshold is used for performing resource exclusion on reserved resources that are used for sensing and are not used for communication in the process of determining the available resource set.

4. A method according to claim 3, wherein the first signal received power threshold is greater than a second signal received power threshold, the second signal received power threshold being used for resource exclusion of reserved resources for communication in determining the set of available resources.

5. The method according to claim 3 or 4, wherein the first signal reception power threshold is determined according to a priority of the first reserved resource, the priority of the first reserved resource being lower than or equal to a preset priority.

6. The method according to claim 5, wherein the preset priority is a priority of reserved resources for communication in case the priority of the first reserved resources is lower than the preset priority.

7. The method of any one of claims 1-6, wherein the sensing is achieved by transmitting a second signal and receiving a first reflected signal, the first reflected signal being a signal reflected after the second signal encounters an object.

8. The method according to any one of claims 1 to 7, wherein,

The communication being effected by transmitting a third signal, or

The communication is realized by transmitting a third signal and receiving a fourth signal, wherein the fourth signal is transmitted by a receiver after receiving the third signal.

9. The method according to any one of claims 1-8, wherein said transmitting a first signal from said first set of available resources comprises:

Determining a first resource from the first set of available resources;

the first signal is transmitted on the first resource.

10. The method of claim 9, wherein the first resource is the first reserved resource, and wherein the transmitting the first signal on the first resource comprises:

and transmitting the first signal to a first direction on the first reserved resource, wherein the first direction is the direction of a first beam.

11. The method of claim 10, wherein the direction of the first beam comprises a direction of a main lobe in the first beam or a direction of a first side lobe in the first beam.

12. A communication device for implementing the method according to any of claims 1-11.

13. The communication apparatus according to claim 12, wherein the communication apparatus comprises a user equipment or a chip.

14. A computer program product, characterized in that the computer program product comprises a computer program or instructions which, when run by a communication device, cause the method of any of claims 1-11 to be performed.

15. A computer readable storage medium, characterized in that the computer readable storage medium comprises a computer program or instructions which, when run on a communication device, cause the communication device to perform the method of any of claims 1-11.