CN113497659B

CN113497659B - Resource determination method and device

Info

Publication number: CN113497659B
Application number: CN202010624349.8A
Authority: CN
Inventors: 刘云; 徐海博; 王洲; 周永行
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-20
Filing date: 2020-06-30
Publication date: 2022-10-28
Anticipated expiration: 2040-06-30
Also published as: CN113497659A

Abstract

A resource determination method and apparatus for optimizing sidelink transmission performance are provided. The terminal device can obtain the resource information and determine the first resources of N service communication reservations, wherein N is greater than or equal to 2. Whether the first resource reserved by the communication of the N services is used as the resource to be selected is reasonably determined according to the signal intensity thresholds of the N services and the signal intensities of the N services, so that the determination mode of the transmission resource is optimized, and the side transmission performance can be improved.

Description

Resource determination method and device

The present application claims priority from a chinese patent application having a filing date of 20/03/2020, application No. 202010199650.9 entitled "a method of perception of periodic and aperiodic subscription services", the entire contents of which are incorporated herein by reference.

Technical Field

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

Background

The current mobile communication technology, such as a sidelink communication (sidelink) scenario, supports a terminal device (UE) to sense other peripheral terminal devices. The UE performing sensing can receive data transmitted by other UEs nearby, so as to obtain resources used by the UEs nearby according to the received data, and can avoid performing Sidelink (SL) data transmission (or called sidelink transmission) on the resources where data transmission is sensed, so as to reduce interference during SL transmission. One of the sensing purposes is to obtain the reservation condition of other peripheral UEs for the transmission resource, so as to reasonably select the transmission resource used by the UE for transmitting data through SL.

When a transmission resource is reserved by a plurality of services, the UE cannot reasonably judge whether to perform data transmission on the transmission resource, and needs to optimize.

Disclosure of Invention

The application provides a resource determination method and device to meet requirements of different types of UE for sidelink transmission.

In a first aspect, the present application provides a resource determination method, which may be performed by a terminal device or a component (such as a processor, a chip or a system-on-chip, etc.) in the terminal device supporting sidelink transmission.

The following description will be made taking an execution subject as a terminal device as an example. According to the method, the terminal device can obtain resource information of at least N services of a plurality of second terminal devices. The resource information may include information of a first resource, where the first resource is a resource reserved by N services together, and N is greater than or equal to 2. The terminal device may further determine signal strength thresholds of the N services according to the information of the first resource, and determine signal strengths of the N services according to the signal strengths of the resource information of the received N services. When the signal strength thresholds of the N services and the signal strengths of the N services meet a first condition, the terminal device may determine that the candidate resource set includes the first resource.

By adopting the method, the terminal equipment can reasonably determine whether to take the first resource reserved for the communication of the N services as the resource to be selected according to the signal intensity thresholds of the N services and the signal intensities of the N services, and the terminal equipment can consider to select the resource to be selected as the side-line transmission resource, so that the terminal equipment can select the resource with lower interference to perform side-line transmission according to the resource to be selected, and the interference in the side-line transmission is reduced, thereby improving the side-line transmission performance.

In one possible design, the information of the first resource includes at least one of priority information of the N services, an index of the first resource, time-frequency location information of the first resource, and type information of the N services. The priority information of the N services may be used by the terminal device to determine signal strength thresholds of the N services, respectively. The index of the first resource and the time-frequency position information of the first resource are used for the terminal equipment to transmit data through the first resource. The type information of the N services may be used by the terminal device to determine respective types of the N services, so as to identify whether each of the N services is a periodic service or an aperiodic service.

In a possible design, the information of the first resource includes priority information of N services, and the terminal device may determine, according to the priority information of the N services, signal strength thresholds of the N services, respectively, so as to improve determination efficiency of the signal strength thresholds.

In one possible design, the terminal device may determine a first signal strength threshold according to signal strength thresholds of N services, where the first signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where the m services are some or all of the N services, m is a positive integer, and m is less than or equal to N. By adopting the design, a more flexible determination mode of the first signal strength threshold can be realized.

In a possible design, the terminal device may further determine a second signal strength threshold according to the signal strength thresholds of the N services, and determine a first signal strength threshold according to the second signal strength threshold and the value M, where the first signal strength threshold is a signal strength threshold of one of the N services. Wherein M is a constant, or M is determined according to N. The second signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N. By adopting the design, a more flexible determination mode of the first signal strength threshold can be realized.

In one possible design, the first signal strength is determined according to a signal strength of a service with a highest priority among the N services; or, the first signal strength is determined according to the signal strength of the service with the minimum signal strength threshold in the N services; or the first signal strength is determined according to the signal strength of the service with the minimum difference between the signal strength threshold and the signal strength in the m services, where the m services are part or all of the N services, m is a positive integer, and m is less than or equal to N; or, the first signal strength is determined according to the maximum signal strength among the signal strengths of the m services respectively; or, the first signal strength is a sum of signal strengths of the m services, respectively. By adopting the design, a more flexible determination mode of the first signal strength can be realized.

In one possible design, the first condition includes the first signal strength threshold being greater than or equal to the first signal strength. Therefore, whether the first resource is used as the candidate resource or not is flexibly determined according to the first signal threshold strength and the first signal strength.

In one possible design, the terminal device may further determine, according to the priority of the periodic service with the highest priority and the priority of the aperiodic service with the highest priority among the N services, the service with the highest priority from the periodic service with the highest priority and the aperiodic service with the highest priority. By adopting the design, a more reasonable resource determination mode can be realized according to the periodic service with the highest priority and/or the aperiodic service with the highest priority.

In one possible design, the m services include a highest priority periodic service of the N services and/or a highest priority aperiodic service of the N services. By adopting the design, a more reasonable resource determination mode can be realized according to the periodic service with the highest priority and/or the aperiodic service with the highest priority.

In one possible design, the first condition includes that a signal strength threshold of each of the N services is greater than or equal to a signal strength of a service to which the signal strength threshold belongs. By adopting the design, whether the first resource is used as the resource to be selected or not can be determined more accurately, the interference received in the side-line transmission is reduced, and the transmission performance is improved.

In one possible design, the candidate resource set includes the first resource and a second resource, where the second resource is reserved by a periodic service or an aperiodic service, and the terminal device may determine a transmission resource according to a probability of the first resource and a probability of the second resource, where the transmission resource may be used for the terminal device to perform sidelink transmission, and where the probability of the first resource is smaller than the probability of the second resource. With this design, the probability that a resource reserved by a plurality of services is determined as a transmission resource is smaller than the probability that a resource reserved by only one service is selected as a transmission resource, thereby reducing interference received when data is transmitted sideways through the transmission resource and improving transmission performance.

In one possible design, the N services are sidelink transmission services.

In a second aspect, the present application provides a resource-aware method, which may be performed by a terminal device or a component (such as a processor, a chip or a system-on-chip, etc.) in the terminal device supporting sidelink transmission.

The following description will be made taking an execution subject as a terminal device as an example. According to the method, a terminal device determines that a reservation period (gap) of a periodic service is less than or equal to a reservation upper limit W of an aperiodic service. It should be understood that the resource information transmitted by the other terminal device received by the terminal device may indicate the resource reserved by the aperiodic service data of the other terminal device, and the time domain interval between the resource reserved by the aperiodic service and the resource occupied by the resource information does not exceed W time slots. The terminal device can determine the resources respectively reserved by the periodic service and the aperiodic service according to W, so as to save power consumption.

In one possible design, the terminal device may receive configuration information from a network device (e.g., a base station), where the configuration information may be used to indicate that a reservation period gap of the periodic service is less than or equal to a reservation upper limit W of the aperiodic service.

In one possible design, the periodic traffic and the aperiodic traffic are sidelink traffic.

In a third aspect, embodiments of the present application provide a resource sensing method, which may be performed by a terminal device or a component (such as a processor, a chip or a system-on-chip, or the like) in the terminal device supporting sidelink transmission.

The following description will be given taking the execution subject as a terminal device as an example. According to the method, when the terminal device is in a Discontinuous Reception (DRX) mode, the terminal device determines a third resource, wherein no service reserves the third resource outside a DRX period, and the terminal device determines that the set of resources to be selected does not include the third resource, or determines that the set of resources to be selected includes the third resource when the number of the determined resources to be selected is less than a threshold value or the proportion of the resources to be selected to all resources in a resource pool is too low, so that the situation that the third resource cannot be accurately reserved is avoided that the third resource is selected for side-line transmission, and interference in the side-line transmission is reduced.

In one possible design, the traffic is sidelink transmission traffic.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, which may implement the method in the first aspect or any one of the possible implementation manners of the first aspect. The device comprises corresponding units or means for performing the above-described method. The means comprised by the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a terminal device, or a chip, a chip system, a processor, or the like that can support the terminal device to implement the method.

In one possible design, the communication apparatus may include a communication module and a processing module, etc. in its structure, and these modules may perform the corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect.

Illustratively, the communication apparatus may include means for acquiring resource information of at least N services of the plurality of second terminal devices, the resource information may include information of a first resource, the first resource being a resource commonly reserved by the N services, N being greater than or equal to 2. And a module for determining the signal strength threshold of each of the N services according to the information of the first resource. The module for determining the signal strength threshold of each of the N services according to the information of the first resource may be further configured to determine the signal strength of each of the N services according to the signal strength of the resource information of each of the N services. When the signal strength thresholds of the N services and the signal strengths of the N services meet a first condition, the module for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine that the set of resources to be selected includes the first resource.

In one possible design, the information of the first resource includes at least one of priority information of the N services, an index of the first resource, time-frequency location information of the first resource, and type information of the N services.

In a possible design, the information of the first resource includes priority information of N services, and the module for determining the signal strength thresholds of the N services according to the information of the first resource is further configured to determine the signal strength thresholds of the N services according to the priority information of the N services.

In a possible design, the module for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine a first signal strength threshold according to the signal strength thresholds of the N services, where the first signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N.

In a possible design, the module for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine a second signal strength threshold according to the signal strength thresholds of the N services, and determine a first signal strength threshold according to the second signal strength threshold and the value M, where the first signal strength threshold is a signal strength threshold of one of the N services. Wherein M is a constant, or M is determined according to N. The second signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N.

In one possible design, the first signal strength is determined according to a signal strength of a service with a highest priority among the N services; or, the first signal strength is determined according to the signal strength of the service with the minimum signal strength threshold in the N services; or the first signal strength is determined according to the signal strength of the service with the minimum difference between the signal strength threshold and the signal strength in the m services, where the m services are part or all of the N services, m is a positive integer, and m is less than or equal to N; or, the first signal strength is determined according to the maximum signal strength among the signal strengths of the m services respectively; or, the first signal strength is a sum of signal strengths of the m services, respectively.

In a possible design, the module for determining the signal strength threshold of each of the N services according to the information of the first resource may be further configured to determine, according to a priority of a highest-priority periodic service and a priority of a highest-priority aperiodic service among the N services, the highest-priority service from the highest-priority periodic service and the highest-priority aperiodic service.

In one possible design, the m services include a highest priority periodic service of the N services and/or a highest priority aperiodic service of the N services.

In a possible design, the candidate resource set includes the first resource and a second resource, where the second resource is reserved by a periodic service or an aperiodic service, and the module for determining the signal strength threshold of each of the N services according to the information of the first resource is further configured to determine a transmission resource according to a probability of the first resource and a probability of the second resource, where the transmission resource is available for the terminal device to perform sidelink transmission, and the probability of the first resource is smaller than the probability of the second resource.

In one possible design, the communication device may be configured to include a processor, and optionally a communication interface and a memory. The communication interface may be used for transceiving information or data and for the communication device to communicatively interact with other communication devices (e.g., network devices) in the network system. The processor is configured to enable the communication apparatus to perform the respective functions of the terminal device in the above first aspect or each possible design example of the first aspect. The memory is coupled to the processor for storing program instructions and data necessary for the first communication device.

In one possible design, the N services are sidelink transmission services.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which may implement the method in the second aspect or any possible implementation manner of the second aspect. The device comprises corresponding units or means for performing the above-described method. The means comprising may be implemented by software and/or hardware means. The apparatus may be, for example, a terminal device, or a chip, a chip system, or a processor that can support the terminal device to implement the method described above.

In one possible design, the communication apparatus may include a communication module and a processing module in the structure, and these modules may execute the corresponding functions of the terminal device in the second aspect or each possible design example of the second aspect.

The processing module may be configured to determine that the subscription period gap of the periodic service is less than or equal to the upper subscription limit W of the aperiodic service. It should be understood that the resource information sent by the other terminal device received by the communication module may indicate the resource reserved by the aperiodic service data of the other terminal device, and the time domain interval between the resource reserved by the aperiodic service and the resource occupied by the resource information does not exceed W time slots. The terminal equipment can sense the periodic service and the non-periodic service according to the W, so that power consumption generated by sensing is saved.

In one possible design, the communication module may be configured to receive configuration information from a network device (e.g., a base station), where the configuration information may be used to indicate that a reservation period gap of a periodic service is less than or equal to an upper reservation limit W of an aperiodic service.

In a sixth aspect, an embodiment of the present application provides a communication apparatus, which may implement the method in the third aspect or any possible implementation manner of the third aspect. The device comprises corresponding units or means for performing the above-described method. The means comprised by the apparatus may be implemented by software and/or hardware. The apparatus may be, for example, a terminal device, or a chip, a chip system, or a processor that can support the terminal device to implement the method described above.

In one possible design, the communication apparatus may include a communication module and a processing module in the structure, and these modules may execute the corresponding functions of the terminal device in the third aspect or each possible design example of the third aspect.

When the terminal device is in a Discontinuous Reception (DRX) mode, the processing module determines a third resource, wherein no service reserves the third resource outside the DRX period, and the processing module determines that the set of resources to be selected does not include the third resource, or determines that the set of resources to be selected includes the third resource when the determined number of the resources to be selected is less than a threshold or the ratio of the resources to be selected to all resources in the resource pool is too low, so as to avoid selecting the third resource for side-line transmission under the condition that the reservation of the third resource cannot be accurately known, and reduce interference received in the side-line transmission.

In one possible design, the traffic is sidelink transmission traffic.

In a seventh aspect, an embodiment of the present application provides a communication system. The communication system may comprise the communication device provided in the second aspect above and a communication device for communicating with the communication device.

In an eighth aspect, the present application provides a computer storage medium, which stores a program or, when invoked for execution on a computer, causes the computer to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect.

In a ninth aspect, the present application provides a computer program product, which may comprise a program or instructions, for causing a computer to perform the method of the first aspect or any one of the possible designs of the first aspect, when the computer program product runs on a computer.

In a tenth aspect, the present application provides a chip or chip system comprising a chip, which chip may comprise a processor. The chip may also include a memory (or storage module) and/or a transceiver (or communication module). The chip may be adapted to perform the method as described in the first aspect or any one of the possible designs of the first aspect. The chip system may be formed by the above chip, and may also include the above chip and other discrete devices, such as a memory (or a storage module) and/or a transceiver (or a communication module).

Advantageous effects in the second to tenth aspects and possible designs thereof described above reference may be made to the description of advantageous effects of the method described in the first aspect and any of the possible designs thereof.

Drawings

Fig. 1A is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 1B is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a resource determination method according to an embodiment of the present application;

FIG. 3A is a diagram illustrating a sensing window provided by an embodiment of the present application;

FIG. 3B is a schematic diagram of another exemplary sensing window provided in the embodiments of the present application;

fig. 4 is a schematic flowchart of a resource determining method according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a resource determining method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of a resource determining method according to an embodiment of the present application;

fig. 7A is a schematic flowchart of a resource determining method according to an embodiment of the present application;

fig. 7B is a schematic flowchart of a resource sensing method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communications device according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

The application provides a resource determination method for optimizing a transmission resource determination mode. The present application will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific methods of operation in the method embodiments described below may also be applied to either the apparatus embodiments or the system embodiments.

The resource determination method provided by the embodiment of the present application can be applied to the wireless communication system 100 shown in fig. 1A. It should be understood that the wireless communication system 100 may include at least one terminal device, and the terminal device is illustrated as a mobile phone in fig. 1A, but it should not be understood that the terminal device is limited to a mobile phone.

The terminal equipment may be fixed or mobile. It should be understood that fig. 1A is only a schematic diagram of an architecture of a wireless communication system, and the communication system provided by the present application may further include other network devices not shown in fig. 1A, such as an access network device, a wireless relay device, a wireless backhaul device, and the like. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.

The terminal device may be specifically a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an unmanned vehicle, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved PLMN network. The terminal equipment can be deployed on land, including indoors or outdoors, handheld by a user or vehicle-mounted; the terminal equipment can also be deployed on the water surface (such as a ship and the like); terminal devices may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.).

Illustratively, the terminal device may be a terminal (terminal), a Mobile Station (MS), a mobile terminal (mobile station), or the like, or a chip, a system-on-chip, or the like. The terminal device is capable of communicating with one or more network devices of one or more communication systems and accepting network services provided by the network devices, where the network devices include, but are not limited to, the illustrated third communication apparatus. For example, the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like, and the terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted mobile device. The terminal device may also be a communication chip with a communication module.

It should be understood that the above wireless communication system 100 is applicable to both low frequency scenarios (sub 6G) and high frequency scenarios (above 6G). The application scenarios of the wireless communication system 100 include, but are not limited to, a New Radio (NR) system in a fifth generation (5 th generation,5 g) mobile communication system of a Universal Mobile Telecommunications System (UMTS) Long Term Evolution (LTE) system, a future mobile communication system, and the like.

In addition, at least one terminal device included in the wireless communication system 100 may be a vehicle-mounted device or other vehicle networking communication devices. For example, as shown in FIG. 1B, the in-vehicle device UE-A may be located within the coverage area of UE-B and UE-C, so UE-A may receive data from UE-B and UE-C. In addition, the present application does not limit that UE-a may be located within the coverage of UEs other than UE-B and UE-C.

It should be understood that the terminal devices shown in fig. 1A and 1B may be configured to support communication with network devices including base stations via a Uu air interface (universal user to network interface) of a general user and a network. The above terminal device may also be configured to support sidelink transmission, for example, UE-a shown in fig. 1A may communicate SL with UE-B and/or UE-C over a direct communication (PC 5) air interface. It is to be understood that the terminal device may be a chip having or connectable to a communication module, such as a chip or module in an in-vehicle device. Or other embedded modules. Exemplary types of end devices are vehicle terminals (VUE) and vulnerable road side devices (VRU), wherein the VRU may include human terminals (person/person UE, PUE) and Road Side Units (RSU), smart street lights, and the like.

It should be understood that, based on the communication system 100 shown in fig. 1A or fig. 1B, the method can be applied to service scenarios with different latency requirements and reliability requirements, for example, the method can be applied to a scenario in which UE-a transmits service or service data through sidelink transmission: the method is applied to scenes such as automatic driving service, geographic position service and map service with low delay requirement and high reliability requirement, or voice service with low delay requirement and low reliability requirement, or online game service with low reliability requirement, or data sharing service with high reliability requirement.

The following describes the present application by taking the example that the UA-base:Sub>A shown in fig. 1A or fig. 1B sends traffic data to UE-B, UE-C, or other UEs except UE-B and UE-C. The UE-a is a vehicle-mounted device of the vehicle a, or the UE-a may also be an intelligent terminal such as a mobile phone of the user, which is not particularly limited.

When UE-a needs to send data to other UEs through sidelink transmission, UE-a may select a transmission resource (or called resource) from a resource pool, where the resource pool may be configured by a network device accessed by UE-a, for example, the network device may be a (base station, BS), or include a base station and a radio resource management device for controlling the base station. The base station herein may be an evolved node B (eNB or eNodeB) in a UMTS/LTE system, a micro base station B in a heterogeneous network (HetNet) scenario, a Base Band Unit (BBU) and/or a radio frequency unit (RRU) in a distributed base station scenario, or a small base station (micro/pico eNB) or a transmission/reception node (TRP) in a Cloud Radio Access Network (CRAN) scenario, or a radio controller, a baseband pool (BBU) and/or an RRU in a Cloud Radio Access Network (CRAN) scenario. Or the third communication apparatus may be a relay station, an access point, a wearable device, and a base station in a future 5G network or a base station in a future evolved PLMN network, for example, a new generation node B (gNB), and the embodiments of the present application are not limited thereto. The third communication device may also be a chip having or connectable to a communication module, such as a chip in a base station.

Taking the network device as a gNB for example, it should be understood that UE-a shown in fig. 1A or fig. 1B may be located within the coverage of the gNB, and UE-B and/or UE-C may be located within the coverage of the gNB. When UE-a transmits data to other UEs through sidelink transmission, the other UEs may be located within the coverage of the gNB or outside the coverage of the gNB.

According to the existing resource determination method, the UE-a may select the resources to be used for sidelink transmission according to the following method:

step 1, UE-a receives data sent by one or more other surrounding UEs (including but not limited to UE-B and UE-C shown in fig. 1A or fig. 1B), where the data can be used to determine a service that reserves a certain transmission resource and/or priority information of the service.

It should be understood that, in this application, when UE-a receives service data being transmitted through a certain resource, it may refer to that the service occupies the transmission resource (e.g., transmission resource B), and for a periodic service, the service data may also reserve a transmission resource (e.g., transmission resource a, whose time domain interval between transmission resource a and transmission resource B is a transmission period (gap)) after the transmission resource. Alternatively, the data from other UEs may include resource information, and when UE-a obtains the resource information and indicates that the service data is transmitted on some future transmission resource (e.g., transmission resource a), it may be said that the service reserves the transmission resource, and it may be said that the service reserves (reservation) the transmission resource.

And 2, the UE-A determines a signal strength threshold corresponding to the transmission resource A according to the priority information (hereinafter referred to as first priority information) of the service reserved on the transmission resource A and the priority information (hereinafter referred to as second priority information) of the service required to be sent by the UE-A, wherein the signal strength threshold has a corresponding relation with the first priority information and the second priority information.

For example, the signal strength threshold corresponding to the transmission resource may be represented as SL-thresrrp _ pi _ pj, where pi is priority information of a service that reserves the transmission resource, and pj is priority information of a service that needs to be sent by the UE-a.

As shown in Table 1, the table is a corresponding relationship table among SL-ThresRPRP _ pi _ pj, pi and pj. In this case, it can be considered that the higher the pi value is, the higher the priority of the service that needs to be sent by the UE-a is, and in the same way, the higher the pj value is, the higher the priority of the service that reserves the transmission resource is. Here, it is described by taking an example that the values of pi and pj are in direct proportion to the priority of the service, and it is not excluded that the values of pi and pj are in inverse proportion to the priority of the service, for example, the higher the value of pi is, the lower the priority of the service which needs to be sent by the UE-a is, and in the same way, the higher the value of pj is, the lower the priority of the service which reserves the transmission resource is.

SL-ThresRSRP_pi_pj(/dBm)	pi	pj
			Threshold
1	1	1
			Threshold 2	1	2
Threshold 3	2	1

TABLE 1

In table 1, if pi is unchanged, the larger the value of pj is, the smaller the values of pi and SL-thrersrp _ pi _ pj corresponding to pj are. For example, in table 1, pi values corresponding to the threshold 1 and the threshold 2 are both 1, but the pj value corresponding to the threshold 1 is smaller than the pj value corresponding to the threshold 2, and then the value of the threshold 1 is larger than the value of the threshold 2, for example, the value of the threshold 1 is 15 decibel milliwatts (dBm), and the value of the threshold 2 is 10dBm. If pj is not changed, the larger the pi value is, the larger the corresponding SL-ThresRSRP _ pi _ pj value is. For example, in table 1, the pj values corresponding to the threshold 1 and the threshold 3 are both 1, but the pi value corresponding to the threshold 3 is greater than the pi value corresponding to the threshold 1, and then the value of the threshold 3 is greater than the value of the threshold 1, for example, the value of the threshold 1 is 15dBm, and the value of the threshold 3 is 20dBm.

It should be understood that the correspondence table shown in table 1 may be stored in advance in UE-a, or may be transmitted to UE-a by a network device such as a base station. Furthermore, the correspondence between SL-thresrrp _ pi _ pj, pi, and pj may be the same for different transmission resources, e.g., all as shown in table 1.

Similarly, the UE-a may also determine SL-thresrrp _ pi _ pj corresponding to other transmission resources based on the above manner.

And 3, the UE-A can determine whether the transmission resource A is used as the resource to be selected according to the signal intensity of the received signal on the transmission resource A and the signal intensity threshold corresponding to the transmission resource A. The signal strength of the received signal on the transmission resource a may be obtained by sensing the transmission resource a by the UE-a, and the larger the signal strength is, the stronger the interference is received when the UE-a performs side transmission on the transmission resource a.

For example, UE-a may sense transmission resource a to obtain Reference Signal Receiving Power (RSRP), i.e., signal strength of a received signal on the transmission resource a. Thereafter, UE-a may compare the RSRP to the signal strength threshold corresponding to that transmission resource a. For example, if the UE-a determines that the signal strength threshold corresponding to the transmission resource a is threshold 1 shown in table 1 according to pi and pj, the UE-a may compare the RSRP with the threshold a, and if the RSRP is not greater than (or less than) the threshold 1, the UE-a determines that the transmission resource a belongs to the resource to be selected; if the RSRP is not less than (or greater than) the threshold 1, the UE-A determines that the transmission resource A does not belong to the candidate resource.

Similarly, UE-a may also determine whether other transmission resources belong to the candidate resources based on the above manner.

Step 4, when the UE-a determines at least one candidate resource (the set of the at least one candidate resource may be referred to as a candidate resource set), the UE-a may determine, from the at least one candidate resource, a transmission resource for sending the service data according to factors such as signal strength of the candidate resource, where the transmission resource may be used for the UE-a to send the service data, for example, for the UE-a to send the service data to other UEs through SL communication. The UE receiving the traffic data sent by UE-a may be different from any UE sending the resource information, or may also be one or more UEs sending the resource information, for example, including but not limited to UE-B and UE-C shown in fig. 1A or fig. 1B.

For example, UE-a may select, according to respective RSRP values of the resources to be selected, the resource to be selected with the smallest RSRP value to be used for sending the traffic data, so as to reduce transmission interference received in the sending process of the traffic data.

Based on the above resource determination manner, if the UE-a finds that the number of services subscribed to transmit a certain resource is multiple and the priorities of the multiple services are different, it is difficult for the UE-a to determine the SL-thresrrp _ pi _ pj of the transmission resource according to the correspondence shown in table 1, because there are multiple pi values, the UE-a is likely to be unable to reasonably determine the SL-thrersrp _ pi _ pj, and is also unable to accurately determine whether the transmission resource belongs to the resource to be selected. In addition, if there is a case where multiple services all reserve the transmission resource, even if the priorities of the multiple services are the same, that is, the priorities of the multiple services are the same, the RSRP of each service data perceived by the UE-a is very likely to be different, so that the UE-a is likely to be unable to reasonably select one RSRP for comparing the RSRP with the size of the SL-thresrrp _ pi _ pj, and still unable to reasonably judge whether the transmission resource belongs to the resource to be selected. Therefore, there is a need to optimize the resource determination method in the existing SL communication.

The resource determination method provided in the embodiment of the present application may be used in the communication system shown in fig. 1A or fig. 1B, so as to improve the rationality of resource determination when UE-a transmits data in the transmission side, and improve the transmission performance. Illustratively, the method may include the following steps shown in fig. 2:

s101: the UE-A acquires resource information of at least N services of a plurality of second UEs.

The resource information includes information of a first resource, where the first resource is a resource reserved by N services together, and N is greater than or equal to 2. The first resource is a resource reserved by a plurality of UEs, so that a plurality of second UEs can transmit or receive data of a corresponding service through the first resource.

It should be understood that the traffic here may be sidelink transmission traffic by the second UE. Specifically, the sidelink transmission traffic may include periodic traffic or aperiodic traffic. The plurality of second UEs may include at least one UE of UE-B, UE-C shown in fig. 1A or 1B, or other UEs not shown in fig. 1A and 1B.

In one possible implementation, the resource information may include a correspondence between services from a plurality of second UEs and information of resources reserved for the services. UE-a may receive the above correspondence from the second UE by sensing.

The information of the resource reserved by the service may include at least one of priority information of the service reserving the resource, an index of the resource, time-frequency location information of the resource, or service type information of the service. The priority information of the service reserving the resource can be used for UE-A to determine the signal strength threshold of the service. After determining the resource as the resource to be selected, the UE-a may perform sideline transmission through the resource according to the index of the resource and the time-frequency location information of the resource. The service type information of the service may be used to determine the type of the service, for example, the type information may indicate that the service is a service of a service type such as an autopilot service, a geographical location service, a map service, a voice service, and the like, so that the UE-a may determine whether the service is a periodic service or an aperiodic service according to the service type. In addition, the information of the resource reserved by the service may further include a communication identifier of the second UE, which is used to identify the second UE to which the service belongs and the second UE that transmits the resource information of the service.

After receiving the resource information from the second UEs, the UE-a may obtain a correspondence table between the service and the priority information of the service and the information of the resource reserved by the service, and is configured to determine whether the transmission resource in the correspondence table is used as the resource to be selected.

Illustratively, the resource information of a plurality of services received by UE-a from UE-B is shown in table 2, wherein service 1, service 3 and service 5 of UE-B reserve resource a, resource B and resource C, respectively. It should be understood that the information of the resource reserved by the service in table 2 includes priority information of the service and an index of the transmission resource as an example, and the resource information is not limited to the priority information and the index of the transmission resource in table 2.

Business	Priority information of service	Indexing of resources
			Service
1	1	Resource A
			Service
3	2	Resource B
			Service 5	3	Resource C
……	……	……

TABLE 2

Further, the resource information of the plurality of services received by UE-a from UE-C is shown in table 3, where service 2, service 4, and service 6 of UE-C reserve resource a, resource B, and resource C, respectively.

Business	Priority information of service	Indexing of resources
			Service
2	2	Resource A
			Service
4	3	Resource B
			Service 6	3	Resource C
……	……	……

TABLE 3

After receiving the resource information as shown in tables 2 and 3, UE-a may determine a correspondence between information of resources reserved for a plurality of services and the services as shown in table 4, and may identify a first resource reserved for N services according to the correspondence shown in table 4. In table 4, information of each resource corresponds to a plurality of services, compared to tables 2 and 3.

Indexing of resources	Business
		Resource A	Service 1, service 2
Resource B	Service			3, service 4
		Resource C	Service 5, service 6
……	……

TABLE 4

Taking the information of the resource as an index of the resource in table 4 as an example, based on table 4, UE-a can determine that resource a, resource B, and resource C are reserved by a plurality of services, respectively, and thus can determine that the first resource includes resource a, resource B, and resource C, and UE-a can identify whether resource a, resource B, and resource C are candidate resources according to the method provided in this application, respectively. The information of the first resource may include priority information of N services subscribing to the first resource, an index of the first resource, time-frequency location information of the first resource, or service type information of the N services. In addition, the information of the first resource may further include a communication identifier of the second UE, which is used to identify the second UE to which the service that reserves the first resource belongs and the second UE that transmits the resource information of the service.

Taking the first resource as resource a as an example, the information of the first resource may include priority information and service type information of service 1 and service 2, and include an index of resource a and time-frequency location information of resource a.

It should be understood that table 4 illustrates the correspondence between the information of the resource and the service by taking the index of the resource as an example, and the information of the resource may further include at least one of priority information of the service that reserves the resource, the index of the resource, time-frequency position information of the resource, or service type information of the service.

S102: and the UE-A determines the signal intensity threshold of each of the N services reserving the first resource according to the information of the resource information.

For example, the signal strength threshold of the service subscribed to the first resource may be determined according to the priority pj of the service that needs to be sent by the UE-a, the priority pi of the service, and a correspondence between pi, pj and the signal strength threshold SL-tressrrp _ pi _ pj, where the priority of the service is carried in the information of the first resource, the priority of the service that needs to be sent by the UE-a is determined by the UE-a according to the service, and the correspondence between pi, pj and the signal strength threshold SL-tresrp _ pi _ pj is shown in table 1, for example.

Specifically, if the N services include service 1 and the priority of service 1 is 1 (i.e., pj = 1), and if the priority of the SL service to be performed by UE-a is 1 (i.e., pi = 1), according to table 1, UE-a may determine that the signal strength threshold of service 1 is threshold 1.

S103: and the UE-A determines the signal intensity of each of the N services according to the signal intensity of the resource information of each of the N services.

For example, if the N services include service 1 and service 2, where service 1 is a service of UE-B, service 2 is a service of UE-C, RSRP obtained when the UE receives resource information including service 1 from UE-B is RSRP1, and RSRP obtained when the UE receives resource information including service 2 from UE-B is RSRP2, UE-a may use RSRP1 as the signal strength of service 1, or process RSRP1 according to an existing method to obtain the signal strength of service 1, and may use RSRP2 as the signal strength of service 2, or process RSRP2 according to an existing method to obtain the signal strength of service 2.

For example, according to the steps shown in S102 and S103, UE-a may determine a signal strength threshold and a signal strength for each service for N services subscribed to the first resource. The signal strength threshold of the service reserving the first resource may be determined according to the priority pj of the service that needs to be sent by the UE-a, the priority pi of the service, and the correspondence between pi, pj and the signal strength threshold SL-thresrrp _ pi _ pj. Specifically, the correspondence between pi, pj and the signal strength threshold SL-thrersrp _ pi _ pj is shown in table 1, for example. The signal strength of the service reserving the first resource may be determined by the UE-a according to the signal strength of the resource information of each of the N services received.

For example, as shown in table 5, UE-a may store the correspondence between the signal strength thresholds and the signal strengths of the respective N services subscribing to the first resource according to S102 and S103.

Business	Priority information of a service	Signal strength
			Service A	Threshold _ A	RSRP_A
Service B	Threshold _ B	RSRP_B
			Service C	Threshold _ C	RSRP_C
Service D	Threshold _ D	RSRP_D

TABLE 5

Or as shown in table 6, UE-a may store the correspondence between the service types, the signal strength thresholds, and the signal strengths of the respective N services subscribing to the first resource.

Business	Type of service	Priority information of a service	Signal strength
				Service A	Periodic service	Threshold _ A	RSRP_A
Service B	Aperiodic traffic	Threshold _ B	RSRP_B
				Service C	Aperiodic traffic	Threshold _ C	RSRP_C
Service D	Periodic service	Threshold _ D	RSRP_D

TABLE 6

S104: and when the signal intensity thresholds of the N services of the first resource and the signal intensities of the N services meet a first condition, the UE-A determines that the resource set to be selected comprises the first resource.

By adopting the above process, when the number of the services reserving the first resource is multiple, the UE-a can comprehensively consider the signal intensity threshold and the signal intensity of each of the N services reserving the first resource, reasonably judge whether to use the first resource as the resource to be selected, further determine the transmission resource with the resource to be selected so as to reduce the interference received when the service data is transmitted through the transmission resource, and improve the transmission performance.

It should be understood that, in the embodiment of the present application, the N services subscribed to the first resource may include a periodic service and/or an aperiodic service. The periodic service means that the transmission of SL service data is performed according to a fixed period, so that the UE-a can determine which resources the service reserves in the next period range according to the resource reserved by the periodic service perceived in the previous period range, and therefore when the UE-a performs service data transmission in the next period range, the resources can be reasonably selected according to the resource reservation condition of the periodic service, so as to reduce interference of other service data on the service data transmitted by the UE-a. The aperiodic service means that the transmission of the SL service data does not have a fixed transmission period, so that the UE-a cannot reasonably select the resource used by the self-transmission service in the next period according to the resource reserved by the aperiodic service data in the previous period. For aperiodic service, UE-a needs to know the sending time of the aperiodic service data according to the resource information from the UE sending the aperiodic service data, that is, to know the time domain position of the resource occupied by the aperiodic service.

For example, UE-a may identify whether the traffic is a periodic traffic according to a control signal for scheduling traffic data. Specifically, the control signal may carry indication information (e.g., 1 bit (bit) in length), which may indicate that the traffic is periodic traffic or that the traffic is aperiodic traffic. The indication information may be SL Control Information (SCI).

As shown in fig. 3A, UE-a may sense resources reserved by service data transmitted by other UEs within a sensing window.

Specifically, for periodic traffic, UE-a may receive resource information from other UEs. The resource information may be carried in a periodic service transmitted by another UE, and is used to indicate information such as a period (gap) for transmitting service data, so that UE-a may know that the service data of the next period will be transmitted on a resource spaced from the resource for receiving the resource information by a gap.

For example, as shown in fig. 3A, UE-a receives data of service 1 from resource 1 'in the sensing window, and knows that service 1 is a periodic service, then UE-a can know that service 1 reserves resource 1 shown in fig. 3A, and the interval between resource 1 and resource 1' is gap. Similarly, UE-a receives data of service 2 from resource 2 'in the sensing window, and knows that service 2 is a periodic service, then UE-a can know that service 2 reserves resource 2 shown in fig. 3A, and the interval between resource 2 and resource 2' is gap. The UE-a receives the data of the service 3 from the resource 3 'in the sensing window, and knows that the service 3 is a periodic service, and then the UE-a can know that the service 3 reserves the resource 3 shown in fig. 3A, and the interval between the resource 3 and the resource 3' is gap.

For aperiodic resources, UE-A can receive resource information sent by other UEs to acquire resources reserved by aperiodic services. The resource information is received by the UE-a in the sensing window, and a time domain interval between a resource reserved by the aperiodic service and a resource occupied by the resource information, which is indicated by the resource information, is not more than W slots (slots), for example, W is 32 slots.

For example, as shown in fig. 3A, UE-a receives the aperiodic resource information of service 4 at resource 1 ″ in the sensing window, indicating that the data of service 4 will be transmitted at resource 1, and then UE-a can know that the service 4 reserves resource 1 shown in fig. 3A, and the interval between resource 1 and resource 1 ″ is not more than W slots. Similarly, UE-a receives resource information of service 5 at resource 2 ″ in the sensing window, and indicates that data of service 5 will be sent at resource 2, then UE-a can know that service 5 reserves resource 2 shown in fig. 3A, and the interval between resource 2 and resource 2 ″ does not exceed W time slots. In addition, the resource information of the service 6 is sent in the resource 3 ″ shown in fig. 3A, and since the resource 3 "does not belong to the sensing window of the UE-a, the UE-a cannot receive the resource information, and thus the UE-a cannot know that the data of the service 6 will be sent in the resource 3.

It should be understood that if the values of gap and W are different, UE-a needs to set two sensing windows for gap and W respectively, and UE-a senses in the two sensing windows respectively, so that all resources reserved by the service can be sensed, and it is ensured that no omission occurs.

For example, for a scenario in which there are two traffic types, namely periodic traffic and aperiodic traffic, the base station may configure, through signaling, that the period of the periodic traffic of all UEs is less than or equal to W, or may define, by a protocol, that the period of the periodic traffic of the UE is less than or equal to W. W is set to 32 slots, for example. By adopting the setting, the UE-A does not need to separately set the sensing windows aiming at the periodic service and the aperiodic service, and can meet the sensing requirements of the periodic service and the aperiodic service by only setting the sensing windows according to the W, thereby reducing the sensing times and the sensing power consumption.

Furthermore, as shown in fig. 3B, when in Discontinuous Reception (DRX) mode, UE-a does not perform data reception during DRX, and thus cannot determine periodic traffic and aperiodic traffic for reserving resource 1 shown in fig. 3B, and cannot perceive periodic traffic for reserving resource 2. In this case, UE-a cannot know that there is a service reservation resource 1, but since the sensing result of resource 1 is uncertain when UE-a is in DRX, UE-a does not use resource 1 as the candidate resource. The UE-a may use the resource 1 as the candidate resource only in a special case, such as a case where a ratio of the candidate resource to all resources in the resource pool is too low or there is not enough candidate resource (e.g., the number of the candidate resources is less than or equal to a threshold).

A possible implementation of S104 is specifically described below.

In a possible implementation manner of S104, the UE-a may determine a first signal strength threshold according to signal strength thresholds of N services, and determine a first signal strength according to signal strengths of the N services, and when the first signal strength threshold is greater than or equal to the first signal strength, determine that the first condition is satisfied, that is, determine that the first resource is used as a resource in the candidate resource set. Alternatively, the first condition includes the first signal strength threshold being greater than or equal to the first signal strength.

Otherwise, if the first signal strength threshold is smaller than the first signal strength, the first condition is not met, and the UE-A determines that the first resource is not used as the resource in the resource set to be selected.

Next, a manner of determining the first signal strength threshold by the UE-a according to the signal strength thresholds of the N services is described with reference to the corresponding relationship table shown in table 5 or table 6.

In determining the first signal strength threshold, the UE-a may use the signal strength threshold of the service with the highest priority from the N services as the first signal strength threshold.

For example, the highest priority service may be a periodic service with the highest priority among the N services subscribed to the first resource, or an aperiodic service with the highest priority among the N services, which is perceived by the UE-a. Specifically, the UE-a may determine a periodic service with the highest priority from periodic services of the N services and determine an aperiodic service with the highest priority from aperiodic services of the N services, and then the UE-a may take the service with the highest priority as the service with the highest priority from the periodic service with the highest priority and the aperiodic service with the highest priority. For example, if the N services include service a, service B, and service C shown in table 5 or table 6, and if service a is the highest-priority periodic service, service B is the highest-priority aperiodic service, and the priority of service a is higher than that of service B, that is, service a is the highest-priority service, UE-a may use threshold _ a corresponding to service a as the first signal strength threshold.

In another way of determining the first signal strength threshold, the UE-a may use, as the first signal strength threshold, a signal strength threshold of a service with a minimum difference between the signal strength threshold of the service and the signal strength of the N services. For example, according to table 5 or table 6, if the threshold _ a-RSRP _ a = a, the threshold _ B-RSRP _ B = B, and the threshold _ C-RSRP _ C = C, where a > B > C, that is, the service C is the service with the minimum difference between the signal strength threshold and the signal strength, the UE-a may use the threshold _ C corresponding to the service C as the first signal strength threshold.

In another way of determining the first signal strength threshold, the UE-a may use a minimum signal strength threshold among signal strength thresholds of m services, as the first signal strength threshold, where the m services are part or all of the N services that reserve the first resource. For example, in table 5 or table 6, if threshold _ a > threshold _ B > threshold _ C, i.e. threshold _ C is the smaller of the m traffic individual signal strength thresholds, UE-a may use threshold _ C as the first signal strength threshold.

Illustratively, the m services include a periodic service with the highest priority and/or an aperiodic service with the highest priority among the N services. For example, the m services include m services with the highest priority among the N services.

When determining the first signal strength threshold, another possible implementation manner is that the UE-a may use, as the second signal strength threshold, the signal strength threshold of the service with the highest priority among the N services, or the signal strength threshold of the service with the smallest difference between the signal strength threshold of the service and the signal strength among the N services, or the smallest signal strength threshold among the signal strength thresholds of the M services, and determine the first signal strength threshold according to the second signal strength threshold and the value M. Where M is a constant, such as 5dB. Alternatively, M corresponds to N. Wherein, the corresponding relationship between M and N can be shown in Table 7; alternatively, a functional relationship is satisfied between M and N, such as M =10 log10 (N) (dB).

N	M
			2≤N≤3	3dB
4≤N≤7	6dB
		8≤N	9dB

TABLE 7

Illustratively, the value of the first signal strength threshold is a difference between the value of the second signal strength threshold and M.

For example, if the N services include service a, service B, and service C shown in table 5 or table 6, where service a is the highest priority service, UE-a may use (threshold _ a-M) as the first signal strength threshold.

For another example, if the service C shown in table 5 or table 6 is the service with the minimum difference between the signal strength threshold and the signal strength, the UE-a may use (threshold _ C-M) as the first signal strength threshold.

For another example, if service C shown in table 5 or table 6 is the service with the minimum signal strength threshold, UE-a may use (threshold _ C-M) as the first signal strength threshold.

In determining the first signal strength, in one possible example, the first signal strength may be determined according to a signal strength of a highest priority service among the N services. For example, if service a shown in table 5 or table 6 is the highest priority service, UE-a may use RSRP _ a as the first signal strength, or determine the first signal strength according to RSRP _ a and a value M, for example, the first signal is determined as the sum of RSRP _ a and a value M, where M is a constant, such as 5dB, or M corresponds to N. Wherein, the corresponding relationship between M and N can be shown in Table 7; alternatively, a functional relationship is satisfied between M and N, such as M =10 log10 (N) (dB).

In another way to determine the first signal strength, the first signal strength may be determined according to the signal strength of the service with the minimum signal strength threshold from m services, where the m services are some or all of the N services. For example, if service C shown in table 5 or table 6 is the service with the minimum signal strength threshold, UE-a may use RSRP _ C as the first signal strength. Alternatively, UE-a may determine the first signal strength according to RSRP _ C and the value M, and the specific method for determining the first signal strength may refer to the foregoing description for determining the first signal strength according to RSRP _ a and the value M.

In another way of determining the first signal strength, the first signal strength may be determined according to the signal strength of the service with the smallest difference between the signal strength threshold and the signal strength among the N services. For example, if the service C shown in table 5 or table 6 is the service with the minimum difference between the signal strength threshold and the signal strength, UE-a may use RSRP _ C as the first signal strength. Alternatively, UE-a may determine the first signal strength according to RSRP _ C and the value M, and the specific method for determining the first signal strength may refer to the foregoing description for determining the first signal strength according to RSRP _ a and the value M.

In another way of determining the first signal strength, the first signal strength may be determined according to the maximum signal strength among the signal strengths of m services, where the m services are part or all of the N services. For example, if service B shown in table 5 or table 6 is the service with the highest signal strength, UE-a may use RSRP _ B as the first signal strength. Alternatively, UE-a may determine the first signal strength based on RSRP _ B and the value M, and the specific method for determining the first signal strength may refer to the foregoing description for determining the first signal strength based on RSRP _ a and the value M.

After the first signal strength threshold and the first signal strength are determined in any one of the manners shown above, the UE-a may compare a value of the first signal strength threshold and a value of the first signal strength, determine whether the first condition is met according to a comparison result, if the first condition is met, the UE-a may perform S103, and if the first condition is not met, the UE-a may perform S104, so as to determine whether the candidate resource set includes the first resource.

In a specific example, if the UE-a determines whether to use the first resource as the candidate resource according to the signal strength and the signal strength threshold of the service with the highest priority among the N services subscribed to the first resource, the resource determination method provided in the embodiment of the present application may include the following steps as shown in fig. 4:

s201: the service for which UE-a determines to reserve the first resource includes service a and service B shown in table 5 or table 6.

S202: UE-A compares the priority p1 of service A with the priority p2 of service B.

If the priority p1 of the service a is higher (or not lower) than the priority p2 of the service B, S203-S204 are performed. If p2 is higher (or not lower) than p1, S205-S206 are performed. If p1 has the same priority as p2, S207-S208 are performed.

S203: and the UE-A determines a threshold _ A according to the p1 and the priority pj of the service needing to be sent by the UE-A.

Wherein, the threshold _ A corresponds to pj and p1, and pj is the priority of the service which needs to be sent by the UE-A.

S204: UE-a compares the threshold _ a with the size of RSRP _ a.

Wherein, RSRP _ A is the signal strength of the received signal of the service A perceived by the UE-A.

If the RSRP _ A is larger than (or not smaller than) the threshold _ A, the UE-A determines that the first resource is not used as the candidate resource. Otherwise, if the RSRP _ a is smaller (or not larger) than the threshold _ a, the UE-a determines the first resource as the candidate resource.

S205: and the UE-A determines a threshold _ B according to the p2 and the priority pj of the service needing to be sent by the UE-A.

Wherein, the threshold _ B corresponds to pj and p2, and pj is the priority of the service that needs to be sent by UE-A.

S206: UE-A compares the magnitude of the threshold _ B and the RSRP _ B.

If the RSRP _ B is greater than (or not less than) the threshold _ B, the UE-A determines that the first resource is not used as a candidate resource; otherwise, if the RSRP _ B is smaller (or not larger) than the threshold _ B, the UE-a determines the first resource as the candidate resource.

S207: UE-A determines the larger of the signal strength values RSRP _ A and RSRP _ B (denoted as RSRP _ max).

S208: UE-A compares RSRP _ max to the magnitude of threshold _ A (or threshold _ B). If the RSRP _ max is larger than (or not smaller than) the threshold _ A, the UE-A determines that the first resource is not used as the candidate resource. Otherwise, if the RSRP _ max is smaller than (or not larger than) the threshold _ A, the UE-A determines the first resource as the candidate resource.

In the above example, if the service subscribed to the first resource further includes service C, for example, service B and service C are both aperiodic services, UE-a may further compare the priority of service B with the priority of service C before performing S202, and perform S202 if the priority of service B is higher (or not lower) than the priority of service C.

If the UE-a determines whether to use the first resource as the candidate resource according to the signal strength threshold and the signal strength of the service with the minimum difference between the signal strength threshold and the signal strength among the N services reserving the first resource, the resource determination method provided in the embodiment of the present application may include the following steps as shown in fig. 5:

s301: the service for which UE-a determines to reserve the first resource includes service a and service B shown in table 5 or table 6.

Wherein, UE-a may determine the first corresponding relationship shown in table 5 or table 6 according to the resource information from at least one UE. Illustratively, UE-A can receive resource information from UE-B, and determine that service A of UE-B reserves a first resource according to the resource information; in addition, UE-A may receive resource information from UE-C and determine that service A of UE-C reserves the first resource based on the resource information. Or, the UE-a may receive resource information from the UE-B, and obtain, according to the resource information, that the service a and the service B reserve the first resource, where the service a and the service B may both be services of the UE-B, or may be services of different UEs, which is not specifically limited herein.

S302: UE-A determines the signal strength threshold and signal strength of service A and determines the signal strength threshold and signal strength of service B.

The signal strength threshold of the service a is threshold _ a, the signal strength of the service a is RSRP _ a, the signal strength threshold of the service B is threshold _ B, and the signal strength of the service B is RSRP _ B.

S303: UE-A determines the difference a between the signal strength threshold and the signal strength of service A and determines the difference B between the signal strength threshold and the signal strength of service B. Wherein a = threshold _ a-RSRP _ a, B = threshold _ B-RSRP _ B.

S304: UE-A compares the difference a between the signal intensity threshold and signal intensity of service A with the difference B between the signal intensity threshold and signal intensity of service B.

If a is smaller than b, S305 is executed. If b is less than a, go to S306. If a is equal to b, either S305 or S306 is executed.

S305: UE-A compares (thresholds _ A-M) to the size of RSRP _ A.

Wherein M is a positive integer. M is a constant, or M corresponds to N, e.g., M =10 log10 (N).

If RSRP _ a is greater than (or not less than) (threshold _ a-M), UE-a determines that the first resource is not to be a candidate resource. Otherwise, if the RSRP _ a is less (or not greater) than (threshold _ a-M), UE-a determines the first resource as the candidate resource.

S306: UE-A compares (threshold _ B-M) to the size of RSRP _ B.

If the RSRP _ B is larger than the threshold _ B-M, the UE-A determines that the first resource is not used as a resource to be selected; otherwise, if the RSRP _ B is less (or not greater) than (threshold _ B-M), UE-a determines the first resource as the candidate resource.

If the UE-a determines whether to use the first resource as the resource to be selected according to the minimum signal strength threshold among the signal strength thresholds of the N services respectively reserving the first resource and the maximum signal strength among the signal strengths of the N services respectively, the resource determination method provided in the embodiment of the present application may include the following steps as shown in fig. 6:

s401: the service for which UE-a determines to reserve the first resource includes service a and service B shown in table 5 or table 6.

Wherein, UE-a may determine the first corresponding relationship shown in table 5 or table 6 according to the resource information from at least one UE. Illustratively, UE-A can receive resource information from UE-B, and determine that service A of UE-B reserves a first resource according to the resource information; in addition, UE-A may receive resource information from UE-C and determine that service A of UE-C reserves the first resource based on the resource information. Or UE-a may receive resource information from UE-B, and obtain, according to the resource information, that service a and service B reserve the first resource, where service a and service B may both be services of UE-B, or may be services of different UEs, and this is not limited specifically here.

S402: UE-A determines the signal strength threshold and signal strength of service A and determines the signal strength threshold and signal strength of service B.

S403: UE-a determines the minimum of the signal strength thresholds for service a and service B (denoted as threshold _ min) and the maximum of the signal strengths for service a and service B (denoted as RSRP _ max).

Illustratively, threshold _ min = min { threshold _ a, threshold _ B }, RSRP _ max = max { RSRP _ a, RSRP _ B }.

S404: UE-a compares the minimum signal strength threshold with the maximum signal strength.

If the RSRP _ max is larger than (or not smaller than) the threshold _ min, the UE-A determines that the first resource is not used as the candidate resource. Otherwise, if the RSRP _ max is smaller than (or not larger than) the threshold _ min, the UE-A determines the first resource as the candidate resource.

It should be understood that if the service subscribing to the first resource further includes service C and service D shown in table 5 or table 6, then threshold _ min = min { threshold _ a, threshold _ B, threshold _ C, threshold _ D }, RSRP _ max = { RSRP _ a, RSRP _ B, RSRP _ C, RSRP _ D }, in S503. Or, after determining that the service a is a periodic service with the highest priority for reserving the first resource and the service B is an aperiodic service with the highest priority for reserving the first resource, the UE-a executes the steps shown in S401-S404.

If the UE-a determines whether to use the first resource as the resource to be selected according to the sum of the minimum signal strength threshold and the signal strength of each of the N services reserving the first resource, the resource determining method provided in the embodiment of the present application may include the following steps as shown in fig. 7A:

s501: the service for which UE-a determines to reserve the first resource includes service a and service B shown in table 5 or table 6.

Wherein, UE-a may determine the first corresponding relationship shown in table 5 or table 6 according to the resource information from at least one UE. Illustratively, UE-A can receive resource information from UE-B, and determine that service A of UE-B reserves a first resource according to the resource information; in addition, UE-A may receive resource information from UE-C, and determine that service A of UE-C reserves the first resource based on the resource information. Or, the UE-a may receive resource information from the UE-B, and obtain, according to the resource information, that the service a and the service B reserve the first resource, where the service a and the service B may both be services of the UE-B, or may be services of different UEs, which is not specifically limited herein.

S502: UE-A determines the signal strength threshold and signal strength of service A and determines the signal strength threshold and signal strength of service B.

S503: UE-a determines the minimum of the signal strength threshold for service a and the signal strength threshold for service B (denoted as threshold _ min) and determines the sum of the signal strength for service a and the signal strength for service B (denoted as RSRP _ sum).

Illustratively, threshold _ min = min { threshold _ a, threshold _ B }, RSRP _ sum = RSRP _ a + RSRP _ B.

S504: UE-a compares the minimum signal strength threshold to the magnitude of the sum of the signal strengths.

And if the RSRP _ sum is greater than (or not less than) the threshold _ min, the UE-A determines that the first resource is not used as the candidate resource. Otherwise, if the RSRP _ sum is smaller (or not larger) than the threshold _ min, the UE-a determines the first resource as the candidate resource.

It should be understood that, if the service subscribing to the first resource further includes service C and service D shown in table 5 or table 6, then in S503, threshold _ min = min { threshold _ a, threshold _ B, threshold _ C, threshold _ D }, RSRP _ sum = RSRP _ a + RSRP _ B + RSRP _ C + RSRP _ D. Or, after determining that the service a is a periodic service with the highest priority for reserving the first resource and the service B is an aperiodic service with the highest priority for reserving the first resource, the UE-a performs the steps shown in S501-S504.

In another possible implementation manner of S104, when the signal strength threshold of each service in the N services is greater than or equal to the signal strength of the service to which the signal strength threshold belongs, the UE-a may determine that the first condition is satisfied, that is, determine that the first resource is used as a resource in the candidate resource set. Or, the first condition includes that the signal strength threshold of each of the N services (or N services of the N services) is greater than or equal to the signal strength of the service to which the signal strength threshold belongs.

Otherwise, if the signal intensity threshold of at least one service in the N services is smaller than the signal intensity of the service to which the signal intensity threshold belongs, the first condition is not met, and the UE-A determines that the first resource is not used as the resource in the resource set to be selected.

For example, for resource a shown in table 2, UE-a may determine that traffic 1 and traffic 2 have priorities of 1 and 2, respectively, UE-a may determine a signal strength threshold of 1 and RSRP1 for traffic 1 and a signal strength threshold of 2 and RSRP2 for traffic 2. When the UE-A determines that the signal intensity threshold 1 is not smaller than the RSRP1 and the signal intensity threshold 2 is not smaller than the RSRP2, the UE-A determines that the resource set to be selected comprises the resource A, or the UE-A determines that the resource A is the resource to be selected. Otherwise, when the UE-A determines that the signal intensity threshold 1 is smaller than the RSRP1 or the signal intensity threshold 2 is smaller than the RSRP2, the UE-A determines that the resource set to be selected does not include the resource A, or the UE-A determines that the resource A does not belong to the resource to be selected.

In one possible implementation, the UE-a may further determine whether the first condition is satisfied according to the signal strength thresholds and the signal strengths of N services of the N services, so as to save computational complexity. Wherein N is smaller than N, and the proportion of N services in N services is not smaller than a threshold, such as 50%. The UE-a may determine that the first condition is satisfied when the signal strength threshold of each service in the n services is greater than or equal to the signal strength of the service to which the signal strength threshold belongs, or may determine that the first condition is not satisfied when the signal strength threshold of at least one service in the n services is less than the signal strength of the service to which the signal strength threshold belongs.

For example, the N services may include part or all of a periodic service with the highest priority, b aperiodic services with the highest priority, c periodic services with the smallest signal strength threshold, d aperiodic services with the smallest signal strength threshold, e periodic services with the smallest difference between the signal strength threshold and the signal strength, or f aperiodic services with the smallest difference between the signal strength threshold and the signal strength, among the N services. Wherein a, b, c, d, e and f are positive integers.

It should be understood that the values of a, b, c, d, e and f above can be configured by the base station accessed by the UE-a or pre-stored in the UE-a.

For example, if the n services include service a and service B shown in table 5 or table 6, UE-a may determine whether threshold _ a is not greater than RSRP _ a (hereinafter, referred to as a first determination result), if the determination result is yes, it is recorded as "1", if the determination result is no, it is recorded as "0", and if the determination result is not greater than RSRP _ B (hereinafter, referred to as a second determination result), if the determination result is yes, it is recorded as "1", and if the determination result is no, it is recorded as "0". And the UE-A can perform AND operation according to the first judgment result and the second judgment result and determine whether the first resource is used as the resource to be selected according to the operation result.

Specifically, if the first determination result is recorded as "1", the first determination result is recorded as "0", and a result obtained by performing an and operation on "1" and "0" is "0", which indicates that the first resource is not to be selected. And if the first judgment result is recorded as '0', the first judgment result is recorded as '1', and the result obtained after the AND operation of '0' and '1' is '0', which indicates that the first resource is not used as the candidate resource. And if the first judgment result is marked as '0', and the result of the AND operation of '0' and '0' is '0', which indicates that the first resource is not used as the candidate resource. And if the first judgment result is recorded as '1', and the result obtained after the AND operation of '1' and '1' is '1', the first resource is taken as the candidate resource.

After S104, UE-a may determine a transmission resource according to the candidate resource set, and perform SL transmission according to the transmission resource. When determining transmission resources according to the candidate resource set, if the candidate resource set includes the first resource and the second resource, where the number of services reserving the second resource is 1, the UE-a may determine the transmission resources according to the probability of the first resource and the probability of the second resource, where the probability is used to indicate the possibility that the candidate resource is determined as the transmission resource, and the larger the value of the probability is, the larger the possibility that the candidate resource is selected as the transmission resource is. Wherein the probability of the first resource is less than the probability of the second resource, so that resources reserved by 1 service are more likely to be designated as transmission resources to reduce transmission interference experienced when transmitting service data through the transmission resources.

Illustratively, the probability of the candidate resource reserved by no service is a basic probability g0, the probability of the candidate resource reserved by one service is g1, and the probability of the candidate resource reserved by two services is g2, so that g2 is greater than g1 and less than g0.

Specifically, the probability of the first resource is k times that of the second resource, and k is smaller than 1. For example, k =1/2. For another example, the probability gN of the first resource is related to N, and the larger N, the smaller gN, for example, gN and the base probability g0 satisfy gN = g 0/(N + 1), where N is the number of services subscribed to the first resource. Furthermore, the probability of the second resource may be l times the base probability g0, l being less than 1. For example, l =1/2.

It should be understood that the number of candidate resources determined by UE-a is Q, Q being a positive integer, and if the probability of candidate resources being reserved by Q services is represented by f (Q), then Σ f (Q) × Q =1, where Q =0,1,2 \8230, Q. Accordingly, UE-A may determine a probability for each candidate resource.

For example, the sum of the probabilities of all the candidate resources in the candidate resource set may be 1, for example, the probability of the first resource is k times that of the second resource, and k =3 (e.g., N = 2), and if the candidate resource set is composed of the first resource and the second resource, the probability of the first resource is 0.25, and the probability of the second resource is 0.75.

As shown in fig. 7B, an embodiment of the present application further provides a method, which is applied to a scenario where periodic service and aperiodic service coexist, and is used to reduce the sensing times of the UE and reduce the sensing power consumption. The method may comprise the steps of:

s601: and the UE-A, the UE-B and the UE-C configure a periodic gap of the periodic service, wherein the value of the gap is not more than (or less than) W time slots, and the time domain interval between the resource reserved by the aperiodic service and the resource occupied by the resource information, which is indicated by the resource information, is not more than W time slots. For example, W =32.

Optionally, the base station may configure or pre-configure the UE-a, the UE-B, and the UE-C to configure the periodic gap of the periodic service.

Optionally, the value of W may be configured by the base station or configured in a pre-configuration manner by the UE-a, the UE-B, and the UE-C.

S602: and the UE-B sends the resource information of the service A, and the UE-C sends the resource information of the service B.

The service a is a periodic service, and the service B is an aperiodic service. Wherein, the period of the service A does not exceed W.

S603: and the UE-A senses the resource information of the service A and the resource information of the service B by taking the W as a period.

Accordingly, the UE-a may determine the transmission resource used for the sidelink transmission according to the resource information of the service a and the resource information of the service B.

By adopting the method, the UE-A does not need to separately set the sensing windows aiming at the periodic service and the aperiodic service, and can meet the sensing requirements of the periodic service and the aperiodic service only by setting the sensing windows according to the W, thereby reducing the sensing times and the sensing power consumption.

Corresponding to the method provided by the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, which includes a module for executing the above embodiment. The module may be software, hardware, or a combination of software and hardware.

Fig. 8 shows a schematic diagram of the structure of an apparatus. The apparatus 800 may be a terminal device, and may also be a chip, a chip system, or a processor that supports the terminal device to implement the method described above. The apparatus 800 may be used to implement the method described in the foregoing method embodiment, and specific reference may be made to the description in the foregoing method embodiment.

As shown in fig. 8, a communication apparatus provided in an embodiment of the present application may include a communication module 801 and a processing module 802, where the communication module 801 and the processing module 802 are coupled to each other. The communication device 800 may be used to perform the steps shown in fig. 4 or fig. 5 above as being performed by the first communication device or the third communication device. The communication module 801 may be used to support the communication device 800 for communication, and the communication module 801 may also be referred to as a communication unit, a communication interface, a transceiver module, or a transceiver unit. The communication module 801 may have a wireless communication function, and may communicate with another communication device by a wireless communication method, for example. The processing module 802 may also be referred to as a processing unit and may be used to support the communication device 800 to perform the processing actions performed by the first communication device or the third communication device in the above method embodiments, including but not limited to: generate information, messages to be sent by the communication module 801, and/or demodulate and decode signals received by the communication module 801, and so on.

In a possible design, when the steps performed by the terminal device in the foregoing method embodiment are performed, the processing module 802 may obtain resource information of at least N services of a plurality of second terminal devices, where the resource information may include information of a first resource, where the first resource is a resource reserved by the N services in common, and N is greater than or equal to 2.

Wherein, the resource information of at least N services can be received by the communication module 801 and sent to the processing module 802.

The processing module 802 may further determine the signal strength thresholds of the N services according to the information of the first resource, and determine the signal strengths of the N services according to the signal strengths of the resource information of the received N services. When the signal strength thresholds of the N services and the signal strengths of the N services meet the first condition, the processing module 802 may further be configured to determine that the set of resources to be selected includes the first resource.

In one possible design, the processing module 802 may determine a first signal strength threshold according to signal strength thresholds of N services, where the first signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are some or all of the N services, m is a positive integer, and m is less than or equal to N. By adopting the design, a more flexible determination mode of the first signal strength threshold can be realized.

In one possible design, the processing module 802 may further determine a second signal strength threshold according to the signal strength thresholds of the N services, and determine a first signal strength threshold according to the second signal strength threshold and the value M, where the first signal strength threshold is a signal strength threshold of one of the N services. Wherein M is a constant, or M is determined according to N. The second signal strength threshold includes a signal strength threshold of a service with the highest priority among the N services, a signal strength threshold of a service with the smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N.

In one possible example, the first condition includes the first signal strength threshold being greater than or equal to the first signal strength.

In one possible design, the processing module 802 may further determine the highest priority service from the highest priority periodic service and the highest priority aperiodic service according to the priority of the highest priority periodic service and the priority of the highest aperiodic service in the N services.

In one possible design, the candidate resource set includes the first resource and a second resource reserved by a periodic service or an aperiodic service, and the processing module 802 may further determine a transmission resource according to a probability of the first resource and a probability of the second resource, where the probability of the first resource is smaller than the probability of the second resource, and the transmission resource is available for the terminal device to perform sidelink transmission.

In one possible design, the N services are sidelink transmission services.

Fig. 9 is a schematic structural diagram of another communication apparatus provided in an embodiment of the present application, where the communication apparatus may be implemented by hardware components. The apparatus 900 shown in fig. 9 may be the first communication apparatus, or may be a chip, a chip system, or a processor supporting the first communication apparatus to implement the method described above. Alternatively, the apparatus 900 may be a third communication apparatus, or may be a chip, a chip system, a processor, or the like supporting the third communication apparatus to implement the method described above. The apparatus 900 may be configured to implement the method performed by the first communication apparatus or the third communication apparatus in the method embodiment described above, and specifically, refer to the description in the method embodiment described above. The apparatus 900 has a function of implementing the first communication device or the third communication device described in the embodiment of the present application, for example, the apparatus 900 includes a module or a unit or means (means) corresponding to the step of executing the terminal related described in the embodiment of the present application, where the function or the unit or the means may be implemented by software, or by hardware executing corresponding software, or by a combination of software and hardware. Reference may be made in detail to the respective description of the corresponding method embodiments hereinbefore.

The apparatus 900 may include one or more processors 901, where the processors 901 may also be referred to as processing units and may implement certain control functions. The processor 901 may be a general-purpose processor or a special-purpose processor, etc. For example, a baseband processor or a central processor. The baseband processor may be configured to process communication protocols and communication data, and the central processor may be configured to control a communication device (e.g., a base station, a baseband chip, a terminal chip, a Distributed Unit (DU) or a Centralized Unit (CU)), execute a software program, and process data of the software program.

In an alternative design, the processor 901 may store instructions 903 and/or data, and the instructions 903 and/or data may be executed by the processor, so that the apparatus 900 performs the method described in the above method embodiment.

In an alternative design, processor 901 may include a transceiver unit for performing receive and transmit functions. The transceiving unit may be, for example, a transceiving circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or integrated. The transceiver circuit, the interface circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit, the interface circuit or the interface circuit may be used for transmitting or transferring signals.

In yet another possible design, the apparatus 900 may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments.

Optionally, the apparatus 900 may include one or more memories 902, on which instructions 904 may be stored, the instructions being executable on the processor to cause the apparatus 900 to perform the methods described in the method embodiments above. Optionally, the memory may further store data therein. Optionally, instructions and/or data may also be stored in the processor. The processor and the memory may be provided separately or may be integrated together. For example, the correspondence described in the above method embodiments may be stored in a memory or in a processor. The processor 901 and/or the memory 902 may be considered as the processing module 802 shown in fig. 8.

Optionally, the apparatus 900 may further include a transceiver 905 and/or an antenna 908. The processor 901, which may be referred to as a processing unit, controls the apparatus 900. The transceiver 905 may be referred to as a transceiver unit, a transceiver circuit, a transceiver device, a transceiver module, or the like, and is used for implementing a transceiving function. The transceiver 905 and/or the antenna 908 can be considered to be the communication module 801 shown in fig. 8.

Optionally, the apparatus 900 in the embodiment of the present application may be configured to perform the method described in the above embodiment of the present application. The processor 901 may be configured to perform the steps performed by the processing module 802 shown in fig. 8, and the transceiver 905 may be configured to perform the steps performed by the communication module 801 shown in fig. 8. For the specific steps executed by the processor 901 and the transceiver 905, reference may be made to the above description of the steps executed by the processing module 802 or the communication module 801 in part of fig. 8, and details are not repeated here.

As shown in fig. 10, another structure of a communication apparatus 1000 according to the embodiment of the present application may include a module 1001 for acquiring resource information of at least N services of a plurality of second terminal devices, where the resource information may include information of a first resource, where the first resource is a resource reserved by the N services together, and N is greater than or equal to 2. A module 1002 is included for determining signal strength thresholds for the N services according to the information of the first resource. The module 1002 for determining the signal strength thresholds of the respective N services according to the information of the first resource may be further configured to determine the signal strengths of the respective N services according to the signal strengths of the received resource information of the respective N services. When the signal strength thresholds of the N services and the signal strengths of the N services meet a first condition, the module 1002 for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine that the set of resources to be selected includes the first resource.

In one possible design, the information of the first resource includes priority information of N services, and the module 1002 for determining signal strength thresholds of the N services according to the information of the first resource is further configured to determine signal strength thresholds of the N services according to the priority information of the N services.

In one possible design, the module 1002 for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine a first signal strength threshold according to the signal strength thresholds of the N services, where the first signal strength threshold includes a signal strength threshold of a service with a highest priority among the N services, a signal strength threshold of a service with a smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N.

In one possible design, the module 1002 for determining the signal strength thresholds of the N services according to the information of the first resource may be further configured to determine a second signal strength threshold according to the signal strength thresholds of the N services, and determine a first signal strength threshold according to the second signal strength threshold and the value M, where the first signal strength threshold is a signal strength threshold of one service of the N services. Wherein M is a constant, or M is determined according to N. The second signal strength threshold includes a signal strength threshold of a service with the highest priority among the N services, a signal strength threshold of a service with the smallest difference between the signal strength threshold of the service among the N services and the signal strength, or a smallest signal strength threshold among signal strength thresholds of m services, where m services are part or all of the N services, m is a positive integer, and m is less than or equal to N.

In one possible design, the module 1002 for determining the signal strength threshold of each of the N services according to the information of the first resource may be further configured to determine, according to a priority of a highest-priority periodic service and a priority of a highest-priority aperiodic service among the N services, the highest-priority service from the highest-priority periodic service and the highest-priority aperiodic service.

In a possible design, the candidate resource set includes the first resource and a second resource, where the second resource is reserved by a periodic service or an aperiodic service, and the module 1002 for determining the signal strength threshold of each of the N services according to the information of the first resource is further configured to determine a transmission resource according to a probability of the first resource and a probability of the second resource, where the transmission resource is available for the terminal device to perform sidelink transmission, and the probability of the first resource is smaller than the probability of the second resource.

In one possible design, the N services are sidelink transmission services.

The processors and transceivers described herein may be implemented on Integrated Circuits (ICs), analog ICs, radio Frequency Integrated Circuits (RFICs), mixed signal ICs, application Specific Integrated Circuits (ASICs), printed Circuit Boards (PCBs), electronic devices, and the like. The processor and transceiver may also be fabricated using various IC process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar Junction Transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), and the like.

The apparatus in the above description of the embodiment may be a terminal device, but the scope of the apparatus described in the present application is not limited thereto, and the structure of the apparatus may not be limited by fig. 9. The apparatus may be a stand-alone device or may be part of a larger device. For example, the apparatus may be:

(1) A stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem;

(2) A set of one or more ICs, which optionally may also include storage components for storing data and/or instructions;

(3) An ASIC, such as a modem (MSM);

(4) A module that may be embedded within other devices;

(5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, machine devices, home devices, medical devices, industrial devices, and the like;

(6) Others, and so forth.

In combination with the above, the present application further provides the following embodiments, and it should be noted that the numbering of the following embodiments does not necessarily need to follow the numbering sequence of the previous embodiments:

embodiment 1, a communication method applied to a terminal device includes:

acquiring resource information of at least N services of a plurality of second terminal devices, wherein the resource information comprises information of a first resource, the first resource is a resource reserved by the N services together, and N is greater than or equal to 2;

determining the signal intensity threshold of each of the N services according to the information of the first resource;

determining the signal intensity of each of the N services according to the signal intensity of the resource information of each of the N services;

and when the signal intensity thresholds of the N services respectively and the signal intensities of the N services respectively meet a first condition, determining that the resource set to be selected comprises the first resource.

Embodiment 2, the method of embodiment 1, wherein the information of the first resource comprises at least one of:

priority information of the N services; or,

an index of the first resource; or,

time-frequency location information of the first resource; or,

type information of the N services.

Embodiment 3, the method according to embodiment 2, wherein determining the signal strength thresholds of the N services according to the information of the first resource includes:

and determining the signal intensity threshold of each of the N services according to the priority information of the N services.

Embodiment 4, the method of any one of embodiments 1-3, further comprising:

determining a first signal strength threshold according to the signal strength thresholds of the N services respectively,

the first signal strength threshold comprises:

the signal strength threshold of the service with the highest priority in the N services; or,

in the N services, the signal intensity threshold of the service with the minimum difference value between the signal intensity threshold of the service and the signal intensity threshold of the service; or,

and the minimum signal intensity threshold in the signal intensity thresholds of the m services is the partial or all services in the N services, m is a positive integer, and m is less than or equal to N.

Embodiment 5, the method of any one of embodiments 1-3, further comprising:

determining a second signal strength threshold according to the signal strength thresholds of the N services respectively,

determining a first signal strength threshold according to the second signal strength threshold and the value M, wherein the first signal strength threshold is the signal strength threshold of one service in the N services;

wherein M is a constant, or M is determined according to N;

the second signal strength threshold comprises:

Embodiment 6, the method of embodiment 4 or 5, further comprising:

determining a first signal strength according to the signal strengths of the N services respectively;

wherein the first signal strength is determined according to the signal strength of the service with the highest priority in the N services; or,

the first signal strength is determined according to the signal strength of the service with the minimum signal strength threshold in the N services; or,

the first signal strength is determined according to the signal strength of the service with the minimum difference value between the signal strength threshold and the signal strength in the m services, wherein the m services are part or all of the N services, m is a positive integer, and m is smaller than or equal to N; or,

the first signal strength is determined according to the maximum signal strength in the signal strengths of the m services; or,

the first signal strength is the sum of the signal strengths of the m services, respectively.

Example 7, the method of example 6, wherein the first condition comprises:

the first signal strength threshold is greater than or equal to the first signal strength.

Embodiment 8, the method of any one of embodiments 4-7, further comprising:

and determining the service with the highest priority from the periodic service with the highest priority and the aperiodic service with the highest priority according to the priority of the periodic service with the highest priority and the priority of the aperiodic service with the highest priority in the N services.

Embodiment 9, the method of any one of embodiments 4-8, further comprising:

and determining the service with the highest priority from the periodic service with the highest priority and the aperiodic service with the highest priority in the N services according to the priority of the periodic service with the highest priority and the priority of the aperiodic service with the highest priority.

Embodiment 10, the method of any one of embodiments 1-3, the first condition comprising:

and the signal intensity threshold of each service in the N services is greater than or equal to the signal intensity of the service to which the signal intensity threshold belongs.

Embodiment 11 is the method as in any of embodiments 1-10, wherein the set of candidate resources includes the first resource and a second resource, and wherein the second resource is reserved by a periodic service or an aperiodic service, the method further comprising:

and determining transmission resources according to the probability of the first resources and the probability of the second resources, wherein the probability of the first resources is smaller than that of the second resources.

Embodiment 12 is the method according to any of embodiments 1 to 11, wherein the N services are services of the plurality of second terminal devices.

Embodiment 13, a communication apparatus, comprising:

a module configured to obtain resource information of at least N services of a plurality of second terminal devices, where the resource information includes information of a first resource, the first resource is a resource reserved by the N services together, and N is greater than or equal to 2;

a module configured to determine signal strength thresholds of the N services according to the information of the first resource;

the module for determining the signal strength thresholds of the N services according to the information of the first resource is further configured to determine the signal strengths of the N services according to the signal strengths of the received resource information of the N services;

when the signal strength thresholds of the N services and the signal strengths of the N services meet a first condition, the module for determining the signal strength thresholds of the N services according to the information of the first resource is further configured to determine that the set of resources to be selected includes the first resource.

Embodiment 14, the method of embodiment 13, wherein the information of the first resource comprises at least one of:

priority information of the N services; or,

an index of the first resource; or,

time-frequency location information of the first resource; or,

type information of the N services.

Embodiment 15, as in the communication device in embodiment 14, the module for determining the signal strength thresholds of the N services according to the information of the first resource is specifically configured to:

Embodiment 16 is the communications apparatus according to any of embodiments 13-15, wherein the means for determining the signal strength thresholds for the N services according to the information of the first resource is further configured to:

the first signal strength threshold comprises:

the signal intensity threshold of the service with the highest priority level in the N services; or,

in the N services, the signal intensity threshold of the service with the minimum difference value between the signal intensity threshold of the service and the signal intensity is set; or,

Embodiment 17, the communications apparatus as in any of embodiments 13-15, wherein the means for determining the signal strength thresholds for the N services according to the information of the first resource is further configured to:

wherein M is a constant, or M is determined according to N;

the second signal strength threshold comprises:

Embodiment 18, the communication apparatus according to embodiment 16 or 17, wherein the means for determining the signal strength thresholds of the N services according to the information of the first resource is further configured to:

determining a first signal strength according to the signal strengths of the N services;

Embodiment 19, the communications apparatus of any of embodiments 16-18, the first condition comprising:

Embodiment 20, the communication apparatus according to embodiment 19, wherein the means for determining the signal strength thresholds of the N services according to the information of the first resource is further configured to:

Embodiment 21, the communications apparatus as in any of embodiments 16-20, the m services comprising:

among the N services, the periodic service with the highest priority; and/or the presence of a gas in the gas,

and the aperiodic service with the highest priority in the N services.

Embodiment 22, the communications apparatus of any of embodiments 13-15, wherein the first condition comprises:

Embodiment 23, the communications apparatus as in any of embodiments 13-22, wherein the set of candidate resources includes the first resource and a second resource, the second resource is reserved by a periodic service or an aperiodic service, and the means for determining the signal strength thresholds for the respective N services according to the information of the first resource is further configured to:

Embodiment 24 is the communications apparatus of any of embodiments 13 to 23, wherein the N services are services of the plurality of second terminal devices.

Embodiment 25, a communication method, applied to a terminal device, includes:

determining a reservation period gap of the periodic service, wherein the gap is less than or equal to a reservation upper limit W of the aperiodic service;

and sensing resources reserved by the periodic service and the aperiodic service according to the W.

Embodiment 26, the method of embodiment 25, further comprising:

and receiving configuration information from the network equipment, wherein the configuration information is used for indicating the gap.

Embodiment 27, a communication device, comprising:

the processing module is used for determining a reservation period gap of the periodic service, wherein the gap is less than or equal to a reservation upper limit W of the aperiodic service;

and the communication module is used for sensing resources reserved by the periodic service and the aperiodic service according to the W.

Embodiment 28, the communications apparatus of embodiment 27, the communications module is to:

for receiving configuration information from a network device, the configuration information indicating the gap.

Embodiment 29, a communication method, applied to a terminal device, includes:

determining a third resource, wherein the third resource is reserved without a service outside the DRX period;

determining that the set of resources to be selected does not include a third resource; or,

and when the number of the resources to be selected in the resource set to be selected is less than a threshold value or the ratio of the resources to be selected in the resource set to be selected to all resources in the resource pool is less than or equal to the threshold value, determining that the resource set to be selected comprises a third resource.

Embodiment 30, a communication device, comprising:

means for determining a third resource, wherein the third resource is reserved without traffic outside of the DRX period;

the processing module is used for determining that the to-be-selected resource set does not comprise a third resource; or, the method is used for determining that the selected resource set includes the third resource when the number of the selected resources in the selected resource set is less than a threshold or the ratio of the selected resources in the selected resource set to all resources in the resource pool is less than or equal to the threshold.

Embodiment 31, a communication device, comprising: a processor and a memory;

the memory is to store program instructions;

the processor is configured to call the program instructions in the memory to perform the method of any of embodiments 1 to 12, 25 to 26, or 29.

Embodiment 32, the communication device of embodiment 31, the communication device being a terminal equipment, a chip, or a system-on-a-chip.

Embodiment 33, a computer-readable medium having stored thereon a program or instructions that, when executed, cause a computer to perform the method of any of embodiments 1-12, 25-26 or 29.

Embodiment 34 the method of any one of embodiments 1 to 12, 25 to 26, or 29, wherein the N services are sidelink transmission services.

It should be understood that the components included in the above embodiments for the communication device are illustrative, and are merely one possible example, and that the actual implementation thereof may have another configuration. In addition, each component in the above communication apparatus may be integrated into one module, or may exist separately and physically. The integrated module may be implemented in the form of hardware or in the form of a software functional module, and is not to be construed as limited to the structure shown in the above drawings.

Based on the same concept as the method embodiments, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, causes the computer to perform the operations performed by the first communication apparatus or the third communication apparatus in any one of the possible implementations of the method embodiments and the method embodiments.

Based on the same concept as the method embodiments, the present application also provides a computer program product, which when called by a computer, can enable the computer to implement the operations performed by the first communication apparatus or the third communication apparatus in any one of the possible implementations of the method embodiments and the method embodiments.

Based on the same concept as the method embodiments described above, the present application also provides a chip or a chip system, which may include a processor. The chip may further include or be coupled with a memory (or a storage module) and/or a transceiver (or a communication module), where the transceiver (or the communication module) may be used to support the chip for wired and/or wireless communication, and the memory (or the storage module) may be used to store a program that is called by the processor to implement the operations performed by the first communication device or the third communication device in any one of the possible implementations of the above-described method embodiment, method embodiment. The chip system may include the above chip, and may also include the above chip and other discrete devices, such as a memory (or a storage module) and/or a transceiver (or a communication module).

It should be understood that the memory described herein can be used at least to store computer programs or instructions and/or to store information and data related to embodiments of the present application. Wherein the computer program may be called by a processor (or processing unit or processing module) to execute the methods described in the embodiments of the present application. The memory may be, but is not limited to, a flash memory (flash) memory, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, 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 may be self-contained and coupled to the processor via a communication bus. The memory may also be integrated with the processor.

Based on the same concept as the method embodiment, the present application also provides a communication system, which can be used to implement the method embodiment and the operation performed by the first communication apparatus or the third communication apparatus in any one of the possible implementations of the method embodiment. Illustratively, the communication system has an architecture as shown in fig. 1A or fig. 1B.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. A communication method applied to a first terminal device includes:

receiving resource information of a first service and resource information of a second service from a plurality of second terminal devices, wherein the resource information of the first service and the resource information of the second service comprise information of a first resource, and the first resource is a resource reserved by the first service and the second service together;

determining a signal intensity threshold corresponding to a first service according to the resource information of the first service and the resource information of the second service, determining the signal intensity of the resource information of the first service, and determining a candidate resource set for determining a transmitted resource, wherein when the signal intensity of the resource information of the first service is greater than the signal intensity threshold corresponding to the first service, the candidate resource set does not include the first resource; or;

determining a signal intensity threshold corresponding to a second service according to the resource information of the first service and the resource information of the second service, determining the signal intensity of the resource information of the second service, and determining a candidate resource set for determining a transmitted resource, wherein when the signal intensity of the resource information of the second service is greater than the signal intensity threshold corresponding to the second service, the candidate resource set does not include the first resource.

2. The method of claim 1, wherein the resource information of the first service comprises priority information of the first service, and the resource information of the second service comprises priority information of the second service.

3. The method of claim 1 or 2, wherein the method further comprises:

and comparing the priority of the first service with the priority of the second service.

4. The method of any of claims 1-3, wherein the set of candidate resources does not include the first resource when the first condition is not satisfied.

5. The method of claim 4, wherein the method further comprises:

and when the signal intensity threshold corresponding to at least one of the first service and the second service is smaller than the signal intensity corresponding to the service, determining that the first condition is not met.

6. The method of claim 4 or 5, wherein the first condition comprises:

the first signal strength threshold is greater than or equal to the signal strength.

7. The method of any of claims 1-6, wherein the information of the first resource comprises at least one of:

priority information of the first service; or,

priority information of the second service; or,

an index of the first resource; or,

time-frequency location information of the first resource; or,

type information of the first service; or,

type information of the second service.

8. The method of claim 6, wherein the method further comprises:

determining the first signal strength threshold according to the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service,

the first signal strength threshold comprises:

a signal strength threshold of a service with the highest priority in the first service and the second service; or,

in the first service and the second service, the signal intensity threshold of the service with the minimum difference value between the signal intensity threshold of the service and the signal intensity is set; or,

and the minimum signal intensity threshold in the signal intensity threshold corresponding to the first service and the signal intensity threshold corresponding to the second service.

9. The method of claim 4 or 5, wherein the method further comprises:

determining a second signal strength threshold according to the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service,

determining the signal strength threshold according to the second signal strength threshold and the value M, wherein the second signal strength threshold is one of a signal strength threshold corresponding to the first service and a signal strength threshold corresponding to the second service;

wherein M is a constant;

the second signal strength threshold comprises:

and the minimum signal strength threshold in the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service.

10. The method of claim 6, wherein the method further comprises:

determining the signal strength according to the signal strength of the resource information of the first service and the signal strength of the resource information of the second service;

the signal strength is determined according to the signal strength corresponding to the service with the highest priority in the first service and the second service; or,

the signal strength is determined according to the signal strength of the first service with the minimum corresponding signal strength threshold in the first service and the second service; or,

the signal strength is determined according to the signal strength of the first service with the minimum difference between the corresponding signal strength threshold and the signal strength in the first service and the second service,

the signal strength is determined according to the maximum signal strength in the signal strength of the resource information of the first service and the signal strength of the resource information of the second service; or,

the signal strength is the sum of the signal strength of the resource information of the first service and the signal strength of the resource information of the second service.

11. The method of any one of claims 8-10, wherein the method further comprises:

and determining the service with the highest priority from the periodic service with the highest priority and the aperiodic service with the highest priority according to the priority of the periodic service with the highest priority and the priority of the aperiodic service with the highest priority in the first service and the second service.

12. The method of claim 4 or 5, wherein the first condition comprises:

the signal strength threshold corresponding to the first service is greater than or equal to the signal strength of the resource information of the received first service; and (c) and (d),

and the signal intensity threshold corresponding to the second service is greater than or equal to the signal intensity of the resource information for receiving the second service.

13. The method of any of claims 1-12, wherein the set of candidate resources comprises the first resource and a second resource, wherein the second resource is reserved by a periodic service or an aperiodic service, the method further comprising:

14. The method of any of claims 1-13, wherein the first traffic and the second traffic are sidestream traffic.

15. A communications apparatus, comprising:

a module configured to receive resource information of a first service and resource information of a second service from a plurality of second terminal devices, where the resource information of the first service and the resource information of the second service include information of a first resource, and the first resource is a resource that is reserved by both the first service and the second service;

the module for determining the signal strength threshold corresponding to the first service according to the resource information of the first service and the resource information of the second service is further configured to: determining the signal strength of the resource information of the received first service, and determining the signal strength of the resource information of the received first service, wherein when the signal strength of the resource information of the received first service is greater than a signal strength threshold corresponding to the first service, the signal strength is used for determining that a to-be-selected resource set of the transmitted resources does not include the first resource; or,

the module for determining the signal strength threshold corresponding to the second service according to the resource information of the first service and the resource information of the second service is further configured to: and determining the signal strength of the resource information of the second service, wherein when the signal strength of the resource information of the second service is greater than a signal strength threshold corresponding to the second service, the signal strength is used for determining that the to-be-selected resource set of the transmitted resources does not include the first resource.

16. The communications apparatus of claim 15, wherein the resource information of the first service includes priority information of the first service, and the resource information of the second service includes priority information of the second service.

17. The communication apparatus according to claim 15 or 16, further comprising:

means for comparing the priority of the first service with the priority of the second service.

18. The communications apparatus of any of claims 15-17, wherein the set of candidate resources does not include the first resource when the first condition is not satisfied.

19. The communications apparatus of claim 18, further comprising:

and means for determining that the first condition is not satisfied when a signal strength threshold corresponding to at least one of the first service and the second service is less than a signal strength corresponding to the service.

20. The communications apparatus of claim 18 or 19, wherein the first condition comprises:

21. The communication apparatus according to any of claims 15-20, wherein the information of the first resource comprises at least one of:

priority information of the first service; or,

priority information of the second service; or,

an index of the first resource; or,

time-frequency location information of the first resource; or,

type information of the first service; or,

type information of the second service.

22. The communications apparatus of claim 20, further comprising:

means for determining the first signal strength threshold based on respective signal strength thresholds for the first service and the second service,

the first signal strength threshold comprises:

23. The communication apparatus according to claim 18 or 19, further comprising:

a module configured to determine a second signal strength threshold according to the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service;

the module for determining a second signal strength threshold according to the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service is further configured to determine the signal strength threshold according to the second signal strength threshold and a value M, where the second signal strength threshold is one of the signal strength threshold corresponding to the first service and the signal strength threshold corresponding to the second service;

wherein M is a constant;

the second signal strength threshold comprises:

24. The communications apparatus of claim 20, further comprising:

means for determining the signal strength according to the signal strength of the resource information of the received first service and the signal strength of the resource information of the received second service;

the signal strength is determined according to the maximum signal strength of the resource information for receiving the first service and the signal strength of the resource information for receiving the second service; or,

25. The communications device of any of claims 22-24, further comprising:

and determining the highest-priority service from the highest-priority periodic service and the highest-priority aperiodic service according to the priority of the highest-priority periodic service and the priority of the highest-priority aperiodic service in the first service and the second service.

26. The communications apparatus of any of claims 15-25, wherein the first condition comprises:

the signal intensity threshold corresponding to the first service is greater than or equal to the signal intensity of the resource information of the received first service; and,

27. The communications apparatus of any of claims 15-26, wherein the set of candidate resources includes the first resource and a second resource, the communications apparatus further comprising:

means for determining resources for transmission based on a probability of the first resource and a probability of the second resource, wherein the probability of the first resource is less than the probability of the second resource.

28. The communications apparatus of any of claims 15-27, wherein the first traffic and the second traffic are sidestream traffic.

29. A communications apparatus, comprising: a processor and a memory;

the memory is to store program instructions;

the processor is configured to call program instructions in the memory to perform the method of any one of claims 1 to 14.

30. The communication apparatus according to claim 29, wherein the communication apparatus is a terminal device, a chip, or a system of chips.

31. A computer-readable medium having a program or instructions stored thereon, which when executed, causes a computer to perform the method of any one of claims 1 to 14.