Information sending method, resource determination method and device

Abstract

An embodiment of the present application provides an information sending method, a resource determination method and an apparatus; the information sending method includes: a second UE determines a second resource set based on a first sending priority; the second UE sends auxiliary information to the first UE, the auxiliary information including time-frequency domain information of resources in the second resource set, and the second resource set is used by the first UE to determine a first candidate resource set for first side link data to be sent, wherein the first sending priority is determined according to the priority of the first UE to send the first side link data.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies. Background Art

[0002] For vehicle-to-everything (V2X) and Pedestrian-to-Everything (P2X) technologies (collectively referred to as V2X), transmitting devices can communicate directly with receiving devices via sidelinks. Currently, both Long Term Evolution (LTE) and New Radio (NR) systems support V2X communications, namely LTE V2X and NR V2X.

[0003] The transmitting device in the side link can autonomously select the time-frequency resources for information transmission based on sensing results. Sensing includes monitoring the SCI, measuring the Reference Signal Received Power (RSRP), and measuring the Received Signal Strength Indicator (RSSI). This sensing allows resource selection to avoid resources already reserved by other devices, thereby preventing collisions with other devices' side link transmissions and thus avoiding interference.

[0004] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art. Summary of the Invention

[0005] In current NR V2X, resource collisions may occur due to the limited sensing range of the terminal equipment (UE), reducing reliability and impacting the performance of services that require high reliability. An enhanced mechanism is currently being proposed to reduce the probability of collisions and increase reliability.

[0006] Figure 1 This is a schematic diagram of the application scenario of the above enhancement mechanism, such as Figure 1As shown, UE B wants to send data to UE A. Nearby, UE C is invisible to UE B. In other words, UE C is a "hidden terminal" from UE B's perspective. If both UE B and UE C need to send data, since they cannot sense each other, the resources selected by UE B may overlap with those selected by UE C. This will cause interference between the data sent from UE B and UE C to UE A. Therefore, the current augmentation mechanism involves UE A learning UE C's resource usage through sensing, adding this information to auxiliary information, and sending it to UE B. UE B can then exclude the resource set occupied by UE C or its surrounding UEs detected by UE C during resource selection, reducing the probability of collision and increasing reliability. However, there are currently no proposed methods for determining the resource set to be sensed in the auxiliary information or for transmitting this auxiliary information.

[0007] To address at least one of the above problems, an embodiment of the present application provides an information sending method and apparatus.

[0008] According to one aspect of an embodiment of the present application, a method for sending information is provided, including:

[0009] The second UE determines a second resource set according to the first transmission priority;

[0010] The second UE sends auxiliary information to the first UE, where the auxiliary information includes time-frequency domain information of the resources in the second resource set. The second resource set is used by the first UE to determine the first candidate resource set for the first side link data to be sent, wherein the first sending priority is determined according to the priority of the first UE to send the first side link data.

[0011] According to another aspect of an embodiment of the present application, there is provided an information sending apparatus, applied to a second UE, including:

[0012] a first determining unit, configured to determine a second resource set according to the first sending priority;

[0013] A first sending unit is used to send auxiliary information to a first UE, where the auxiliary information includes time-frequency domain information of resources in the second resource set, and the second resource set is used by the first UE to determine a first candidate resource set for sending first side link data, wherein the first sending priority is determined according to the priority of the first UE to send the first side link data.

[0014] According to one aspect of an embodiment of the present application, a resource determination method is provided, including:

[0015] The first UE receives auxiliary information sent by the second UE, wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, the second resource set is determined by the second UE according to a first transmission priority, and the first transmission priority is determined according to a priority of the first UE to send the first side link data;

[0016] The first UE determines a first candidate resource set for sending the first side link data according to the second resource set.

[0017] According to another aspect of an embodiment of the present application, a resource determination apparatus is provided, applied to a first UE, including:

[0018] a first receiving unit, configured to receive auxiliary information sent by a second UE, wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, the second resource set being determined by the second UE based on a first transmission priority, and the first transmission priority being determined based on a priority of the first UE for transmitting first side link data;

[0019] A second determining unit is configured to determine a first candidate resource set for sending the first side link data according to the second resource set.

[0020] According to another aspect of an embodiment of the present application, a method for sending information is provided, including:

[0021] The second UE performs processing related to sending auxiliary information to the first UE according to the first sending priority; wherein the auxiliary information is used by the first UE to determine a first candidate resource set for first side link data to be sent, and the first sending priority is determined according to a priority of the first UE to send the first side link data;

[0022] The second UE sends the auxiliary information to the first UE according to the processing result, or does not send the auxiliary information, or reduces the power of sending the auxiliary information.

[0023] According to another aspect of an embodiment of the present application, there is provided an information sending apparatus, applied to a second UE, including:

[0024] a first processing unit, configured to perform processing related to sending auxiliary information to a first UE according to a first sending priority; wherein the auxiliary information is used by the first UE to determine a first candidate resource set for sending first side link data, and the first sending priority is determined according to a priority of the first UE for sending the first side link data;

[0025] The second processing unit is configured to send the auxiliary information to the first UE according to the processing result, or not send the auxiliary information, or reduce the power of sending the auxiliary information.

[0026] One of the beneficial effects of the embodiments of the present application is that: the terminal device does not determine the resource set perceived in the auxiliary information or perform the processing of sending auxiliary information to the opposite terminal device based on the priority of the data to be sent by the terminal device itself, but determines the resource set perceived in the auxiliary information or performs the processing of sending auxiliary information to the opposite terminal device based on the priority of the opposite terminal device that uses the auxiliary information to determine the data resource. As a result, the resource set perceived in the auxiliary information and the sending of the above-mentioned auxiliary information can be determined taking into account the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0027] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.

[0028] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0029] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.

[0031] Figure 1 This is a schematic diagram of an enhancement mechanism scenario in an embodiment of the present application;

[0032] Figure 2 is a schematic diagram of a communication system according to an embodiment of the present application;

[0033] Figure 3 is a schematic diagram of the information sending method according to an embodiment of the present application;

[0034] Figure 4 is a schematic diagram of an implementation method of operation 301 according to an embodiment of the present application;

[0035] Figure 5 is a schematic diagram of a resource determination method according to an embodiment of the present application;

[0036] Figure 6 is a schematic diagram of the information sending method according to an embodiment of the present application;

[0037] Figure 7 is a schematic diagram of an implementation method of operation 601 according to an embodiment of the present application;

[0038] Figure 8 is a schematic diagram of an implementation method of operation 601 according to an embodiment of the present application;

[0039] Figure 9 is a schematic diagram of an implementation method of operation 601 according to an embodiment of the present application;

[0040] Figure 10 is a schematic diagram of the information sending method according to an embodiment of the present application;

[0041] Figure 11 is a schematic diagram of an information sending device according to an embodiment of the present application;

[0042] Figure 12 is a schematic diagram of the first determining unit 1101 according to an embodiment of the present application;

[0043] Figure 13 is another schematic diagram of the information sending device according to an embodiment of the present application;

[0044] Figure 14 is a schematic diagram of the first processing unit 1301 according to an embodiment of the present application;

[0045] Figure 15 is a schematic diagram of the first processing unit 1301 according to an embodiment of the present application;

[0046] Figure 16 is a schematic diagram of the first processing unit 1301 according to an embodiment of the present application;

[0047] Figure 17 is another schematic diagram of the information sending device according to an embodiment of the present application;

[0048] Figure 18 is a schematic diagram of a terminal device according to an embodiment of the present application;

[0049] Figure 19 2 is a schematic diagram of a resource determination device according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.

[0051] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0052] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.

[0053] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.

[0054] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), etc., and / or other communication protocols currently known or to be developed in the future.

[0055] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0056] Base stations may include, but are not limited to, NodeB (NB), evolved NodeB (eNodeB or eNB), and 5G base stations (gNB), among others. They may also include remote radio heads (RRHs), remote radio units (RRUs), relays, or low-power nodes (e.g., femeto, pico, etc.). The term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0057] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.

[0058] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.

[0059] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, such as but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.

[0060] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.

[0061] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.

[0062] Figure 2 Schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation in which a terminal device and a network device are used as an example. Figure 2 As shown, the communication system 100 may include a network device 101 and terminal devices 102, 103, and 104. For simplicity, Figure 2 Only three terminal devices and one network device are used as an example for illustration, but the embodiments of the present application are not limited to this.

[0063] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0064] It is worth noting that Figure 2The three terminal devices 102, 103, and 104 are shown as being within the coverage of the network device 101, but the present application is not limited thereto. The three terminal devices 102, 103, and 104 may not be within the coverage of the network device 101, or one terminal device 102 may be within the coverage of the network device 101 while the other terminal devices 103 and 104 are outside the coverage of the network device 101.

[0065] In the embodiment of the present application, side link transmission can be performed between terminal devices 102, 103, and 104. For example, terminal devices 102, 103, and 104 can all perform side link transmission within the coverage of network device 101 to implement V2X communication, or they can all perform side link transmission outside the coverage of network device 101 to implement V2X communication. It is also possible that one terminal device 102 is within the coverage of network device 101 and the other terminal devices 103 and 104 are outside the coverage of network device 101 to implement side link transmission to implement V2X communication.

[0066] In this embodiment of the present application, terminal devices 102 and / or 103 and / or 104 can autonomously select side link resources (i.e., using Mode 2). In this case, side link transmission can be independent of network device 101, i.e., network device 101 is optional. Of course, this embodiment of the present application can also combine autonomous selection of side link resources (i.e., using Mode 2) with allocation of side link resources by the network device (i.e., using Mode 1); this embodiment of the present application is not limited to this.

[0067] In the embodiments of the present application, a time unit may be a subframe, a time slot, or a set comprising at least one time domain symbol. A set of at least one time domain symbol may also be referred to as a mini-slot or a non-slot. For example, in the embodiments of the present application, subframes and time slots may be used interchangeably, and "time slot" may be replaced by "subframe." The present application is not limited thereto and may be replaced by other time units. In addition, the terms "time-frequency resource" and "resource" may be used interchangeably.

[0068] In the embodiments of the present application, the side link is described using "V2X" or "P2X" as an example, but the present application is not limited thereto and can also be applied to side link scenarios other than "V2X" or "P2X".

[0069] In the following description, without causing confusion, the terms "side link" and "V2X" or "P2X" can be interchanged, the terms "PSFCH" and "side link feedback channel" can be interchanged, the terms "PSCCH" and "side link control channel" or "side link control information" can be interchanged, and the terms "PSSCH" and "side link data channel" or "side link data" can also be interchanged.

[0070] In addition, transmitting or receiving PSSCH can be understood as transmitting or receiving side link data carried by PSSCH; transmitting or receiving PSFCH can be understood as transmitting or receiving side link feedback information carried by PSFCH.

[0071] Currently, terminal devices can obtain sidelink transmission resources through a process of sensing detection and resource selection. This involves continuous sensing to determine resource occupancy within the resource pool. For example, a terminal device can estimate resource occupancy within a subsequent period (called a selection window) based on resource occupancy within a previous period (called a sensing window).

[0072] For example, the terminal device can obtain the resource occupancy of the sensing window through the side link control information (SCI) in the (n-1000)th to (n-1)th subframe or time slot (i.e., sensing window) and the detection of time-frequency resource reference signals at different positions, and then estimate the resource occupancy of the (n+T1)th to (n+T2)th subframe or time slot (i.e., selection window). The above-mentioned perception includes monitoring SCI, measuring the reference signal received power RSRP, etc. There are multiple equivalent expressions for monitoring SCI within a certain time unit, such as monitoring a certain time unit, receiving SCI within a certain time unit, detecting SCI within a certain time unit, blindly detecting SCI within a certain time unit, and so on. SCI can be the SCI in LTE V2X or the 1st stage SCI (SCI format1A) in NR V2X, but this application is not limited to this. The process of perception detection + resource selection includes:

[0073] For example, in step 1, the physical layer obtains a set of candidate resources:

[0074] When there is side link data to be sent, the physical layer of the terminal device obtains the granularity R of resource selection from the upper layer (such as the Media Access Control (MAC) layer). x,y The granularity can represent a series of consecutive subchannels within a subframe, each subchannel includes more than one consecutive physical resource block (PRB). The number of PRBs can be determined by a resource pool, which is configured or pre-configured by a network device (such as a base station). x,y The size of the resource (hereinafter referred to as R x,y The set of candidate resources) is initially defined as SetA.

[0075] The terminal device can exclude some candidate resources in Set A based on the detection results in the perception window before the data to be sent arrives. x,y Candidate resources need to be excluded:

[0076] ——All R in the subframes that may be reserved in the selection window corresponding to the transmission subframes of the terminal device in the perception window x,y candidate resources;

[0077] ——An R in a subframe detected by the terminal device within the perception window x,y Candidate resources, where x,y The candidate resource detects that the SCI reserves the corresponding subframe in the current selection window, and the indicated time-frequency domain resource is consistent with this R x,y The candidate resources overlap in the time and frequency domain, and the detection result of the reference signal receiving power (RSRP) of the physical side link shared channel (PSSCH) corresponding to the SCI is greater than a threshold value (hereinafter referred to as the RSRP threshold value); or, the SCI reserves a subframe after the selection window, and the subframe is the same as a subframe in the time domain with a subframe in the subsequent subframe that may be reserved in the current selection window, and the frequency domain resources are the same as the R x,y The candidate resources overlap in the frequency domain, and the RSRP detection result of the PSSCH corresponding to the SCI is greater than the RSRP threshold value Th(p t ,p r ).

[0078] Among them, the RSRP threshold value Th(p t ,p r ) t is the priority of the edge link that the terminal device wants to send. r is the priority of the SCI indication received by the terminal device, (p t ,p r ) and a threshold value Th(p t ,p r ) is associated with.

[0079] Step 2 - The MAC layer selects a resource from the candidate resource set:

[0080] That is, the physical layer of the terminal device can report Set B to the MAC layer, which randomly selects a candidate resource from Set B for data transmission. In addition, it selects a modulation and coding scheme (MCS) and sends data on the selected resource.

[0081] Under the condition that there is no ambiguity, the embodiments of the present application may use "exclude", "not select", "not include" and "avoid" without distinction.

[0082] As described in the aforementioned invention content, there is currently no method for determining the resource set perceived in the auxiliary information. In response to the above technical problems, the embodiments of the present application provide corresponding solutions. That is, the embodiments of the present application provide an information sending scheme, that is, when the terminal device determines the resource set in the auxiliary information, it can refer to the method of excluding some candidate resources in Set A in the aforementioned perception process, that is, determining the resource set by sensing. Unlike the aforementioned method, the priority of the data to be sent by the terminal device is not used, but the resource set perceived in the auxiliary information is determined based on the priority of the data sent by the opposite terminal device that uses the auxiliary information to determine the data resource. Thus, the resource set perceived in the auxiliary information can be determined by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service. The following is an explanation in conjunction with the embodiments of the first aspect.

[0083] Embodiments of the first aspect

[0084] An embodiment of the present application provides an information sending method, which is described from the side of a second terminal device (hereinafter referred to as the second UE); for example, the information sending method can be executed by the physical layer of the second terminal device, which will not be repeated below.

[0085] Figure 3 This is a schematic diagram of the information sending method according to an embodiment of the present application. Figure 3 As shown, the method includes:

[0086] 301, the second UE determines a second resource set according to the first transmission priority;

[0087] 302. The second UE sends auxiliary information to the first UE, where the auxiliary information includes time-frequency domain information of resources in the second resource set, where the second resource set is used by the first UE to determine a first candidate resource set for first side link (SL) data to be sent, and the first sending priority is determined according to a priority of the first UE for sending the first SL data.

[0088] It is worth noting that the above Figure 3The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended examples. Figure 3 Records of.

[0089] In some embodiments, the first SL data refers to a first SL data packet. The sending of the first SL data packet by the first UE includes initial transmission or retransmission. The priority of the first UE sending the first SL data indicates the priority of the PSSCH sending the first SL data. The priority is indicated by the SCI on the PSCCH related to the PSSCH. The higher the priority value, the lower the priority, and vice versa. For example, the priority value can be represented by 0, 1, 2, etc. A priority of 0 indicates the highest priority, but this embodiment is not limited to this.

[0090] In some embodiments, the first SL data may be sent by the first UE to the second UE, or may be sent to other UEs, but this embodiment is not limited thereto.

[0091] In some embodiments, the first sending priority is determined according to the priority of the first UE sending the first SL data, which means that the first sending priority is determined at least according to the priority of the first UE sending the first SL data, that is, it can be determined only according to the priority of the first UE sending the first SL data, or it can be determined according to the priority of the first UE sending the first SL data and the priority of other UEs sending SL data that receive and use the auxiliary information.

[0092] In some embodiments, when the second UE sends auxiliary information to the first UE, and the first UE uses or refers to the second resource set in the auxiliary information to determine the first candidate resource set for sending the first SL data, the first sending priority is equal to the sending priority of the first SL data.

[0093] In some embodiments, the second UE can send auxiliary information not only to the first UE, but also to other UEs, and other UEs also use or refer to the second resource set in the auxiliary information to determine the candidate resource set for sending their respective SL data (hereinafter referred to as UE using / referencing the auxiliary information), that is, there is more than one UE using or referring to the auxiliary information, and the first sending priority is determined according to the sending priority of the first SL data and the sending priority of the SL data of other UEs, for example, the first sending priority is equal to the highest priority among the sending priority of the first SL data and the sending priority of the SL data of other UEs.

[0094] In some embodiments, the method further includes: (not shown, optional)

[0095] The second UE sends the auxiliary information to the third UE. The second resource set is also used by the third UE to determine a third candidate resource set for sending third SL data. The first sending priority is equal to the highest priority between the sending priority of the first SL data and the sending priority of the third SL data. For example, if the priority of UE1 sending the first SL data is 2 and the priority of UE3 sending the third SL data is 3, then the first sending priority is 2.

[0096] In some embodiments, the method may also include: the second UE sends the auxiliary information to the fourth UE, the fifth UE, and so on, and the first sending priority is equal to the highest priority among the sending priorities of the SL data of the UEs that receive and use / reference the auxiliary information. This embodiment will not go into details one by one.

[0097] In some embodiments, the method may further include: (optional, not shown)

[0098] The second UE receives the first SCI sent by the first UE, where the first SCI is used to indicate the priority of the first UE in sending the first SL data.

[0099] In some embodiments, the priority of the first UE sending the first SL data can be indicated through the first SCI before the first sending (initial transmission) of the first SL data, or can be indicated through the first SCI after the first sending (initial transmission) of the first SL data.

[0100] For example, the first SCI may be an existing format or a newly defined format, for example, the priority of the first UE in sending the first SL data is indicated by a priority indication field (information element represented as priority) in the first SCI.

[0101] In some embodiments, the first SCI may also be used to trigger the sending of the auxiliary information, for example, by triggering the sending of the auxiliary information through a trigger field in the first SCI.

[0102] In some embodiments, the second UE determines the second resource set through perception detection, for example, determining the second resource set according to the first transmission priority and the third reception priority during the perception detection process. Specifically, the second UE determines whether all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are included in the second resource set according to the first transmission priority and the third reception priority. The second UE will detect one or more second SCIs, and for the one or more second SCIs, determine whether all or part of the PSSCH resources indicated by each second SCI are included in the second resource set according to the first transmission priority and the third reception priority of each second SCI indication.

[0103] Figure 4 This is a schematic diagram of the implementation of operation 301, such as Figure 4 As shown, operation 301 includes:

[0104] 401. The second UE detects a second SCI and measures a reference signal corresponding to a PSCCH or a PSSCH of the second SCI to obtain an RSRP measurement result.

[0105] In some embodiments, the second UE performs blind detection (or monitoring) within a first time period to detect the second SCI. The first time period is equivalent to a perception window. For example, one or more second SCIs may be detected (received). The second UE may perform RSRP measurement on the reference signal corresponding to the PSCCH or PSSCH corresponding to all or part of the received second SCI. In some embodiments, RSRP may be obtained by measuring the demodulation reference signal (DM-RS) of the PSCCH (second SCI) or by measuring the DM-RS of the PSSCH scheduled by the second SCI. For details on how to perform monitoring and measurement, reference may be made to related technologies.

[0106] In some embodiments, the second SCI may be the SCI sent by the first UE (eg, the first SCI) and / or the SCI sent by other UEs, but this embodiment is not limited thereto.

[0107] 402, the second UE determines an RSRP threshold, wherein the RSRP threshold is determined according to the first transmission priority and a third reception priority indicated in the detected second SCI;

[0108] In some embodiments, for example, each measured RSRP corresponds to an RSRP threshold value Th(p t ,p r ).p t It is the first transmission priority, not the transmission priority of the second UE's own to-be-sent side link data indicated by the higher layer. ris the third reception priority indicated by the second SCI received by the terminal device. (p t ,p r ) and a threshold value Th(p t ,p r ), the corresponding relationship can be configured, pre-configured or pre-defined by the network side, and the details can be referred to the relevant technology.

[0109] 403. Compare the RSRP measurement result with the RSRP threshold. When a second SCI is detected and the measurement result of the PSCCH or the reference signal corresponding to the detected second SCI is greater than the threshold, include all or part of the PSSCH resources indicated by the detected second SCI in the second resource set. Alternatively, when a second SCI is detected and the measurement result of the PSCCH or the reference signal corresponding to the detected second SCI is less than the threshold, include all or part of the PSSCH resources indicated by the detected second SCI in the second resource set.

[0110] For example, the second UE measures the reference signal corresponding to the PSCCH or PSSCH corresponding to a detected second SCI, obtains an RSRP measurement result 1, determines the RSRP threshold 1 according to the first transmission priority and the third reception priority indicated by the second SCI, compares the RSRP measurement result 1 with the RSRP threshold 1, and when the measurement 1 result is greater than the threshold 1, includes all or part of the PSSCH resources indicated by the second SCI_1 in the second resource set; the second UE measures the reference signal corresponding to the PSCCH or PSSCH corresponding to another detected second SCI, obtains an RSRP measurement result 2, determines the RSRP threshold 2 according to the first transmission priority and the third reception priority indicated by the other second SCI, compares the RSRP measurement result 2 with the RSRP threshold 2, and when the measurement 2 result is greater than the threshold 2, includes all or part of the PSSCH resources indicated by the other second SCI in the second resource set. The above is illustrated by two second SCIs. The processing method for one or more situations is similar and will not be repeated here.

[0111] In some embodiments, if the measurement result is less than a threshold, it means that all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are recommended resources, that is, the first UE can consider resources when determining the first candidate resource set, and the second resource set is a recommended resource set. If the measurement result is greater than the threshold, it means that all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are not recommended resources (possibly occupied resources), that is, the first UE needs to exclude resources when determining the first candidate resource set, and the second resource set is an excluded resource set.

[0112] In some embodiments, the resources indicated by the second SCI include PSSCH resources in the same time unit as the current SCI, and / or PSSCH resources corresponding to the reserved retransmission and / or PSSCH resources reserved for sending the next period (applicable to periodic transmission scenarios).

[0113] In some embodiments, the auxiliary information can be sent periodically, semi-continuously, or non-periodically. After the second UE receives the first SCI, it determines the resources for sending the auxiliary information, the delay requirements, the sending priority of the auxiliary information and other parameters based on the indication information in the first SCI, and sends the auxiliary information based on the parameters.

[0114] In some embodiments, the sending priority of the auxiliary information may be the first sending priority, and the first sending priority may be indicated by the above-mentioned first SCI. After knowing the first sending priority, the sending priority of the auxiliary information is determined. For example, the second UE may send auxiliary information, and the sending priority of the auxiliary information may be indicated in the SCI on its related PSCCH.

[0115] In some embodiments, the method may further include (optionally, not shown) the second UE sending the auxiliary information to a fourth UE, and the fourth UE forwarding the auxiliary information to the first UE, as will be described in detail in the embodiment of the seventh aspect below.

[0116] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0117] It can be seen from the above embodiments that the terminal device does not determine the set of resources perceived in the auxiliary information based on the priority of the terminal device's own data to be sent, but determines the set of resources perceived in the auxiliary information based on the priority of the data sent by the opposite terminal device that uses the auxiliary information to determine the data resources. Thus, the set of resources perceived in the auxiliary information can be determined by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0118] Embodiments of the second aspect

[0119] An embodiment of the present application provides a resource determination method, which is described from the side of a first terminal device (hereinafter referred to as the first UE for convenience of explanation), wherein the parts that are repeated with the embodiment of the first aspect are not repeated.

[0120] Figure 5 This is a schematic diagram of a resource determination method according to an embodiment of the present application. Figure 5 As shown, the method includes:

[0121] 501. The first UE receives auxiliary information sent by the second UE, wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, the second resource set being determined by the second UE based on a first transmission priority, and the first transmission priority being determined based on a priority of the first UE for transmitting first side link data.

[0122] 502. The first UE determines a first candidate resource set for sending the first side link data based on the second resource set.

[0123] In some embodiments, the specific implementation of the auxiliary information, the second resource set, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect. 501 corresponds to 301-302 in the embodiment of the first aspect, and the repeated parts are not repeated.

[0124] In some embodiments, when the second resource set includes recommended resources, the first UE may consider the resources in the second resource set when determining the first candidate resource set, that is, the resources in the second resource set may be used as first candidate resources. When the second resource set includes excluded resources, the first UE does not consider the second resource set when determining the first candidate resource set, that is, the resources in the second resource set will not be used as first candidate resources.

[0125] In some embodiments, the method may further include: (optional, not shown) the first UE selects a first resource from the first candidate resource set and sends the first SL data on the first resource. For details, please refer to relevant technologies and will not be repeated here.

[0126] In some embodiments, the first UE can broadcast the first SL data, multicast the first SL data, unicast the first SL data, send the first SL data to the second UE, or send the first SL data to other UEs. This embodiment is not limited to this.

[0127] It can be seen from the above embodiments that the terminal device does not determine the set of resources perceived in the auxiliary information based on the priority of the terminal device's own data to be sent, but determines the set of resources perceived in the auxiliary information based on the priority of the data sent by the opposite terminal device that uses the auxiliary information to determine the data resources. Thus, the set of resources perceived in the auxiliary information can be determined by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0128] In LTE V2X and NR V2X, in addition to the need to consider the current UE's own priority of data to be sent during the aforementioned resource perception detection process, there are also some processes in the process of sending data / information that need to consider the current UE's own priority of data to be sent. The processing includes but is not limited to determining the resources for sending data / information, congestion control, power control, and determining the priority of the data / information to be sent. The embodiment of the present application also provides an information sending scheme, that is, when executing the processing of sending auxiliary information to the opposite terminal device, the priority of the side link to be sent by the terminal device is not used, and the processing of sending auxiliary information to the opposite terminal device is determined based on the priority of the opposite terminal device sending the data resource using the auxiliary information. Thus, the processing of sending auxiliary information to the opposite terminal device can be executed by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service. The following is an explanation in conjunction with the embodiment of the third aspect.

[0129] Embodiments of the third aspect

[0130] An embodiment of the present application provides a method for sending information, which is described from the side of a second terminal device (hereinafter referred to as the second UE for convenience of description).

[0131] Figure 6 This is a schematic diagram of the information sending method according to an embodiment of the present application. Figure 6 As shown, the method includes:

[0132] 601. The second UE performs processing related to sending auxiliary information to the first UE according to a first sending priority; wherein the auxiliary information is used by the first UE to determine a first candidate resource set for sending first side link data, and the first sending priority is determined according to a priority of the first UE for sending the first side link data;

[0133] 602. The second UE sends the auxiliary information to the first UE according to the processing result, or does not send the auxiliary information, or reduces the power of sending the auxiliary information.

[0134] It is worth noting that the above Figure 6 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order of the various operations can be appropriately adjusted, and other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the above appended examples. Figure 6 Records of.

[0135] In some embodiments, the specific implementation of the auxiliary information, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect, and the repeated parts will be omitted.

[0136] In some embodiments, the processing related to sending auxiliary information includes but is not limited to determining the resources for sending the auxiliary information, congestion control when sending the auxiliary information, power reduction when sending the auxiliary information, and determining the priority of sending the auxiliary information, which are explained below.

[0137] In some embodiments, the processing is to determine the sending priority of the auxiliary information. In 601-602, the sending priority of the auxiliary information is determined according to the first sending priority, for example, the sending priority of the auxiliary information is determined to be the first sending priority; and the second UE sends the auxiliary information to the first UE according to the first sending priority.

[0138] In some embodiments, the process is to determine the resource for sending the auxiliary information, including determining a fourth candidate resource set and a resource for sending the auxiliary information selected from the fourth candidate resource set. The process of determining the resource can refer to the process of perception detection + resource selection. Figure 7 This is a diagram of the resource determination method, such as Figure 7 As shown, the method includes:

[0139] 701. The second UE detects a third SCI and measures a reference signal corresponding to a PSCCH or a PSSCH of the third SCI to obtain an RSRP measurement result. The processing may refer to operation 401 in the embodiment of the first aspect. The meaning of the third SCI is the same as that of the second SCI and is not repeated here.

[0140] 702. The second UE determines an RSRP threshold, wherein the RSRP threshold is determined according to the first transmission priority or the second transmission priority and a third reception priority indicated in the detected third SCI; the second transmission priority is equal to a highest priority between the first transmission priority and the transmission priority of the auxiliary information;

[0141] In some embodiments, for example, each measured RSRP corresponds to an RSRP threshold value Th(p t ,p r ).p t It is the first transmission priority or the second transmission priority, rather than the transmission priority of the second UE's own to-be-sent side link data indicated by the higher layer. r is the fourth reception priority indicated by the third SCI received by the terminal device. (p t ,p r ) and a threshold value Th(p t ,p r ), the corresponding relationship can be configured, pre-configured or pre-defined by the network side, and the details can be referred to the relevant technology.

[0142] 703, comparing the RSRP measurement result with the RSRP threshold, and determining the fourth candidate resource set according to the comparison result;

[0143] In some embodiments, the physical layer of the second UE obtains the granularity R of resource selection from a higher layer (eg, a media access control (MAC) layer). x,y The meaning of this granularity can refer to the prior art; R in all time units of the entire selection window x,y The size of the resource (hereinafter referred to as R x,y The set of candidate resources) is initially defined as Set A. The second UE may detect in the perception window before sending the auxiliary information, and obtain the fourth candidate resource set after excluding some candidate resources in Set A. For example, the following R x,y Candidate resources need to be excluded: a certain R in the time unit of the terminal device detection within the perception window x,y Candidate resources, where x,y The third SCI indicating the third reception priority is detected on the candidate resource and reserves the corresponding time unit in the current selection window, and the frequency domain resource indicated is consistent with the R x,yThe candidate resources overlap in the frequency domain, and the RSRP measurement result is greater than the RSRP threshold, or the third SCI indicating the third reception priority reserves a time unit after the selection window, and the time unit is the same as one of the subsequent time units that may be reserved by the time monocular in the current selection window in the time domain, and the frequency domain resources are the same as the R x,y The candidate resources overlap in the frequency domain, and the RSRP measurement result is greater than the RSRP threshold Th(p t ,p r ).

[0144] 704 , the physical layer of the terminal device may report the fourth candidate resource set to the MAC layer, and the MAC layer may randomly select a candidate resource from the fourth candidate resource set to send the auxiliary information.

[0145] In some embodiments, based on the capabilities of the terminal device, the time for sending the resource of the auxiliary information is determined as the parameter Tproc,1', and the parameter value is greater than the time parameter value Tproc,1 for determining the resource for sending non-auxiliary information. For example, compensation can be performed, such as Tproc,1'=Tproc,1+X, X can be 1, 2..., the unit is the time unit, and for different subcarrier spacings, the value of X can be different. For example, the larger the subcarrier spacing, the larger X.

[0146] In some embodiments, the processing is congestion control when sending the auxiliary information. In 601-602, congestion control is performed based on the first sending priority or the second sending priority and the channel busy rate value currently measured; wherein the second sending priority is equal to the highest priority between the first sending priority and the sending priority of the auxiliary information; and the second UE determines whether to send the auxiliary information to the first UE or not based on the result of congestion control. Figure 8 This is a schematic diagram of the congestion control method. Figure 8 As shown, the method includes:

[0147] 801, determining a channel occupancy rate threshold corresponding to the first transmission priority or the second transmission priority and a currently measured channel busy rate value;

[0148] In some embodiments, the channel occupancy threshold CR Limit(k) is obtained by looking up a table, such as a correspondence between a predefined or preconfigured priority and at least one first table. A first mapping table corresponding to the first transmission priority or the second transmission priority k is determined from the at least one first table. A channel occupancy threshold is determined based on the currently measured channel busy rate (CBR) and the first mapping table. The first mapping table includes a correspondence between priority, CBR, and channel occupancy threshold. The channel occupancy threshold is determined based on the first / second transmission priority and the calculated CBR. The CBR is the ratio of subchannels detected within a predetermined time period whose received signal strength indicator is greater than an RSRP threshold (configured by a higher layer or preconfigured) to all subchannels.

[0149] 802, performing congestion control according to the channel occupancy threshold;

[0150] In some embodiments, when sending the auxiliary information, the second UE considers the sending priority of the auxiliary information and needs to ensure that the sending of the auxiliary information can meet the channel occupancy limit, that is, satisfy the following formula (1):

[0151]

[0152] Wherein, CR(i) represents the ratio of the number of subchannels occupied by services corresponding to priority i to the number of configured subchannels within a predetermined time period. If formula (1) is satisfied, the auxiliary information may be sent. If formula (1) is not satisfied, the data packet corresponding to the auxiliary information may be discarded and not sent in the current time unit.

[0153] In some embodiments, the method may further include:

[0154] 803 (optional): The second UE receives resource pool configuration information, where the resource pool configuration information includes second indication information, where the second indication information is used to indicate whether to send auxiliary information.

[0155] Furthermore, in 602, the second UE determines whether to send the auxiliary information to the first UE based on the congestion control result and the second indication information. If both the congestion control result and the second indication information determine that the auxiliary information is to be sent, the auxiliary information is sent; if at least one of the congestion control result and the second indication information determines that the auxiliary information is not to be sent, the auxiliary information is not sent.

[0156] Figure 9 This is a schematic diagram of the congestion control method. Figure 9 As shown, the method includes:

[0157] 901, determining a second mapping table corresponding to the first sending priority or the second sending priority from at least one second table;

[0158] In some embodiments, a correspondence between at least one second table and a priority is predefined or preconfigured, and the second mapping table is determined based on the first / second sending priority. The second mapping table includes a correspondence between different CBRs and the first indication information. For example, for the first CBR range, it indicates that the auxiliary information is sent ON, and for the second CBR range, it indicates that the auxiliary information is not sent OFF.

[0159] 902 : Determine first indication information indicating whether to send the auxiliary information according to the channel busy rate value obtained by the current measurement and the second mapping table.

[0160] In some embodiments, the second mapping table can be searched based on the CBR obtained from the current measurement to determine whether to send auxiliary information. If the corresponding first indication information is ON, the auxiliary information is sent, otherwise the auxiliary information is not sent. Optionally, if the corresponding first indication information is OFF, the second UE can ignore the first SCI sent by the first UE.

[0161] In some embodiments, the processing is discarding the auxiliary information or reducing the power when transmitting the auxiliary information. In steps 601-602, when the transmission of the auxiliary information or the transmission of information related to the auxiliary information overlaps with the transmission or reception of other information in time, a determination is made based on a comparison result of the first transmission priority or the second transmission priority with the transmission or reception priority of the other information to determine whether to discard the auxiliary information and / or the information related to the auxiliary information, or to perform power reduction on the transmission of the auxiliary information and / or the information related to the auxiliary information, wherein the second transmission priority is equal to the highest priority between the first transmission priority and the transmission priority of the auxiliary information. For example, when the first / second transmission priority is lower than the transmission priority of the other information, the auxiliary information is discarded, or the transmission power of the auxiliary information is reduced. In some embodiments, the sending of the auxiliary information or the sending of information related to the auxiliary information includes: sending of the PSSCH of the auxiliary information, sending of the PSFCH carrying feedback information corresponding to the auxiliary information, and sending of at least one of the PUCCH carrying the fed information corresponding to the auxiliary information; the sending or receiving of the other information includes: sending or receiving of the SL using LTE wireless access, sending of uplink data, and sending or receiving of the PSFCH carrying other feedback information.

[0162] For example, when the transmission of the auxiliary information or the information related to the auxiliary information using NR wireless access overlaps with the transmission or reception of the SL using LTE wireless access in time, the transmission or reception priority is higher. For example, when the first / second transmission priority is higher than the transmission or reception priority of the SL using LTE wireless access, the auxiliary information or the information related to the auxiliary information is transmitted.

[0163] For example, if the transmission of the PSSCH of the auxiliary information overlaps with the transmission of other uplink data, the one with higher priority is sent and the other is discarded (supporting simultaneous transmission of uplink UL and SL), or the one with higher priority is sent and the transmission power of the one with lower priority is reduced (simultaneous transmission of uplink UL and SL is not supported), so that the total transmission power does not exceed the maximum power requirement. Whether to discard or reduce power can be determined according to the capabilities of the UE, and this application is not limited to this.

[0164] For example, when the transmission of the PSFCH carrying feedback information corresponding to the auxiliary information overlaps with the transmission of other uplink data, it is also necessary to determine whether the corresponding PUCCH or PUSCH is configured with priority 1, and whether the corresponding priority of the PSSCH with the highest priority in the PSFCH is higher than the threshold. Based on the judgment result, it is determined whether to send the PSFCH or other uplink data.

[0165] For example, if the transmission of the PSFCH carrying feedback information corresponding to the auxiliary information overlaps with the reception of other PSFCHs, the PSFCH with a higher priority is selected for transmission or reception. For example, when the first / second transmission priority is higher than the priority of other PSFCHs, the PSFCH is transmitted.

[0166] For example, if the transmission of the PSFCH carrying feedback information corresponding to the auxiliary information overlaps with the transmission of other PSFCHs, then when power is limited (i.e., the sum of the transmit powers of all PSFCHs is greater than the maximum transmit power of the terminal device), N (greater than or equal to 2) PSFCHs with higher priorities are selected for transmission. For example, when the first / second transmission priority is higher than the priority of other PSFCHs, the auxiliary information is transmitted, and when the first / second transmission priority is lower than the transmission priority of the other N PSFCHs, the auxiliary information is discarded.

[0167] For example, the transmission of the PUCCH carrying feedback information corresponding to the auxiliary information overlaps with the transmission of other side link data, and the one with higher priority is transmitted, while the other is discarded.

[0168] The above overlapping scenarios will not be given examples one by one. For details, please refer to 3GPP standard TS38.2.1.3 section 16.2.4.

[0169] It can be seen from the above embodiments that when executing the processing of sending auxiliary information to the opposite terminal device, the priority of the side link to be sent by the terminal device is not used, but the priority of the opposite terminal device that uses the auxiliary information to determine the data resource to send the data is used to determine the execution of the processing of sending auxiliary information to the opposite terminal device. Thus, the processing of sending auxiliary information to the opposite terminal device can be executed by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0170] Embodiments of the fourth aspect

[0171] The embodiment of the present application provides a method for sending information, which is described from the side of a second terminal device (hereinafter referred to as the second UE for convenience of explanation). The difference from the embodiment of the first aspect is that the first transmission priority is a high-level configuration or pre-configuration, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the first aspect are not repeated here.

[0172] In some embodiments, the first transmission priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to generate the auxiliary information in a scenario where no trigger signaling (such as SCI) triggers the transmission of the auxiliary information.

[0173] Embodiments of the fifth aspect

[0174] The embodiment of the present application provides a resource determination method, which is described from the side of a first terminal device (hereinafter referred to as the first UE for convenience of explanation). The difference from the embodiment of the second aspect is that the first transmission priority is a high-level configuration or pre-configuration, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the second aspect are not repeated here.

[0175] In some embodiments, the first transmission priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to generate the auxiliary information in a scenario where no trigger signaling (such as SCI) triggers the transmission of the auxiliary information.

[0176] Embodiments of the sixth aspect

[0177] The embodiment of the present application provides a method for sending information, which is described from the side of a second terminal device (hereinafter referred to as the second UE). The difference from the embodiment of the third aspect is that the first transmission priority is a high-level configuration or pre-configuration, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the third aspect are not repeated here.

[0178] In some embodiments, the first sending priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to execute the processing of sending auxiliary information to the opposite terminal device in a scenario where no trigger signaling (such as SCI) triggers the sending of auxiliary information.

[0179] Embodiments of the seventh aspect

[0180] The embodiment of the present application provides an information sending method, which is described from the side of a fourth terminal device (hereinafter referred to as the fourth UE for convenience of explanation). Due to poor link channel conditions or the first UE is sending (because the side link UE is half-duplex, a sending and receiving conflict occurs), the first UE does not receive the auxiliary information sent by the second UE. Therefore, in order to improve reliability, the auxiliary information can be forwarded with the help of the fourth UE, that is, the second UE can also send the auxiliary information to the fourth UE, and the fourth UE forwards the auxiliary information to the first UE.

[0181] Figure 10 This is a schematic diagram of the information sending method, such as Figure 10 As shown, the method includes:

[0182] 1001. The fourth UE receives auxiliary information sent by the second UE, where the auxiliary information includes time-frequency domain information of resources in a second resource set, where the second resource set is determined by the second UE according to a first transmission priority, where the first transmission priority is determined according to a priority of the first UE for transmitting first side link data.

[0183] 1002. The fourth UE forwards the auxiliary information to the first UE.

[0184] In some embodiments, the specific implementation of the auxiliary information, the second resource set, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect, 1001 can refer to 501, and the repeated parts will not be repeated.

[0185] It can be seen from the above embodiment that when the first UE does not receive the auxiliary information, the fourth UE forwards the auxiliary information, thereby improving reliability.

[0186] Embodiments of the eighth aspect

[0187] The embodiment of the present application provides an information sending device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the embodiment of the first aspect will not be repeated.

[0188] Figure 11is a schematic diagram of an information sending device according to an embodiment of the present application. Figure 11 As shown, the information sending device 1100 includes:

[0189] A first determining unit 1101 is configured to determine a second resource set according to a first sending priority;

[0190] A first sending unit 1102 is configured to send auxiliary information to a first UE, where the auxiliary information includes time-frequency domain information of resources in the second resource set, where the second resource set is used by the first UE to determine a first candidate resource set for first side link (SL) data to be sent, and the first sending priority is determined according to a priority of the first UE for sending the first SL data;

[0191] In some embodiments, the specific implementation methods of the auxiliary information, the second resource set, the first SL data, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect. The implementation methods of the determination unit 1101 and the first sending unit 1102 correspond to 301-302 in the embodiment of the first aspect, and the repeated parts are not repeated.

[0192] In some embodiments, the first sending unit 1102 can also be used to send the auxiliary information to a third UE, and the second resource set is also used by the third UE to determine the third candidate resource set for the third SL data to be sent; the first sending priority is equal to the highest priority between the sending priority of the first SL data and the sending priority of the third SL data.

[0193] In some embodiments, the first sending unit 1102 can also be used to send the auxiliary information to a fourth UE, a fifth UE, and so on. The first sending priority is equal to the highest priority among the sending priorities of the SL data of the UEs that receive and use / reference the auxiliary information. This embodiment will not be described one by one.

[0194] In some embodiments, the apparatus may further include (optional, not shown):

[0195] The first receiving unit is configured to receive a first SCI sent by the first UE, where the first SCI is used to indicate a priority of the first UE in sending the first SL data. The implementation of the first SCI may refer to the embodiment of the first aspect and will not be described in detail here.

[0196] In some embodiments, the first SCI may also be used to trigger the sending of the auxiliary information, and the sending priority of the auxiliary information may be the first sending priority.

[0197] In some embodiments, the first determining unit 1101 determines the second resource set according to the first transmission priority during the sensing detection process. For example, the first determining unit 1101 determines whether all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are included in the second resource set according to the first transmission priority and the third reception priority. Figure 12 The first determining unit 1101 constitutes a schematic diagram, as shown in FIG. Figure 12 As shown, the first determining unit 1101 includes:

[0198] A first detection module 1201 is configured to detect a second SCI and measure a reference signal corresponding to a PSCCH or a PSSCH of the second SCI to obtain an RSRP measurement result;

[0199] A first determining module 1202 is configured to determine an RSRP threshold, wherein the RSRP threshold is determined according to the first transmission priority and a third reception priority indicated in the detected second SCI;

[0200] The second determination module 1203 compares the RSRP measurement result with the RSRP threshold, and when a second SCI is detected and the measurement result of the PSCCH or the reference signal corresponding to the detected second SCI is greater than the threshold, all or part of the PSSCH resources indicated by the detected second SCI indicating the third reception priority are included in the second resource set, or when a second SCI is detected and the measurement result of the PSCCH or the reference signal corresponding to the detected second SCI is less than the threshold, all or part of the PSSCH resources indicated by the detected second SCI indicating the third reception priority are included in the second resource set.

[0201] In some embodiments, the implementation of the first detection module 1201, the first determination module 1202, and the second determination module 1203 can refer to 401-403 of the embodiment of the first aspect and will not be repeated here.

[0202] In some embodiments, the first sending unit 1102 may further send the auxiliary information to a fourth UE, and the fourth UE forwards the auxiliary information to the first UE.

[0203] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0204] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The information sending device 1100 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0205] Also, for simplicity, Figure 11 The connection relationships and signal paths between the various components or modules are shown only as examples, but those skilled in the art will appreciate that various related technologies, such as bus connections, can be used. The aforementioned components or modules can be implemented using hardware such as processors, memories, transmitters, and receivers; this application is not intended to limit this.

[0206] It can be seen from the above embodiments that the terminal device does not determine the set of resources perceived in the auxiliary information based on the priority of the terminal device's own data to be sent, but determines the set of resources perceived in the auxiliary information based on the priority of the data sent by the opposite terminal device that uses the auxiliary information to determine the data resources. Thus, the set of resources perceived in the auxiliary information can be determined by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0207] Embodiments of the ninth aspect

[0208] The embodiment of the present application provides a resource determination device, which may be, for example, a terminal device, or one or more components or assemblies configured on the terminal device, and the same contents as those in the embodiment of the second aspect are not repeated here.

[0209] Figure 19 is a schematic diagram of a resource determination device according to an embodiment of the present application. Figure 19 As shown, the resource determination device 1900 includes:

[0210] A second receiving unit 1901 is configured to receive auxiliary information sent by a second UE, wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, the second resource set being determined by the second UE according to a first transmission priority, and the first transmission priority being determined according to a priority of the first UE for transmitting the first side link data;

[0211] The second determining unit 1902 is configured to determine a first candidate resource set for sending the first side link data according to the second resource set.

[0212] In some embodiments, the specific implementation of the auxiliary information, the second resource set, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect. The second receiving unit 1901 and the second determination unit 1902 correspond to 501-502 in the embodiment of the second aspect, and the repeated parts are not repeated.

[0213] In some embodiments, the second determination unit 1902 can also select resources for sending the first SL data from the first candidate resource set. The device can also include: (optional, not shown) a third sending unit, which is used to send the first SL data. The third sending unit can broadcast the first SL data, multicast the first SL data, or unicast the first SL data. It can send the first SL data to the second UE or to other UEs. This embodiment is not limited to this.

[0214] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0215] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The resource determination device 1900 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.

[0216] Also, for simplicity, Figure 19 The connection relationships and signal paths between the various components or modules are shown only as examples, but those skilled in the art will appreciate that various related technologies, such as bus connections, can be used. The aforementioned components or modules can be implemented using hardware such as processors, memories, transmitters, and receivers; this application is not intended to limit this.

[0217] It can be seen from the above embodiments that the terminal device does not determine the set of resources perceived in the auxiliary information based on the priority of the terminal device's own data to be sent, but determines the set of resources perceived in the auxiliary information based on the priority of the data sent by the opposite terminal device that uses the auxiliary information to determine the data resources. Thus, the set of resources perceived in the auxiliary information can be determined by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0218] Embodiments of the tenth aspect

[0219] The embodiment of the present application provides an information sending device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the contents that are the same as those in the embodiment of the third aspect are not repeated here.

[0220] Figure 13 is a schematic diagram of an information sending device according to an embodiment of the present application. Figure 13 As shown, the information sending device 1300 includes:

[0221] The first processing unit 1301 is configured to execute, by the second UE, processing related to sending auxiliary information to the first UE according to a first transmission priority, wherein the auxiliary information is used by the first UE to determine a first candidate resource set for sending first side link data, and the first transmission priority is determined according to a priority of the first UE for sending the first side link data;

[0222] The second processing unit 1302 is configured such that the second UE sends the auxiliary information to the first UE according to the processing result, or does not send the auxiliary information, or reduces the power of sending the auxiliary information.

[0223] In some embodiments, the specific implementation of the auxiliary information, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect. The first processing unit 1301 and the second processing unit 1302 can correspond to operations 601-602, and the repeated parts will not be repeated.

[0224] In some embodiments, the processing related to sending auxiliary information includes but is not limited to determining the resources for sending the auxiliary information, congestion control when sending the auxiliary information, power reduction when sending the auxiliary information, and determining the priority of sending the auxiliary information, which are explained below.

[0225] In some embodiments, the processing is to determine the sending priority of the auxiliary information, and the first processing unit 1301 determines the sending priority of the auxiliary information based on the first sending priority, for example, determines that the sending priority of the auxiliary information is the first sending priority; and the second processing unit 1302 sends the auxiliary information to the first UE according to the first sending priority.

[0226] In some embodiments, the process is to determine the resource for sending the auxiliary information, including determining a fourth candidate resource set and a resource for sending the auxiliary information selected from the fourth candidate resource set. The process of determining the resource can refer to the process of perception detection + resource selection. Figure 14 This is a schematic diagram of the first processing unit 1301 according to an embodiment of the present application. Figure 14 As shown, the first processing unit 1301 includes:

[0227] The second detection module 1401 detects a third SCI and measures a reference signal corresponding to a PSCCH or a PSSCH of the third SCI to obtain an RSRP measurement result. The processing thereof may refer to operation 401 in the embodiment of the first aspect. The meaning of the third SCI is the same as that of the second SCI and is not repeated here.

[0228] a third determining module 1402, configured to determine an RSRP threshold, wherein the RSRP threshold is determined based on the first transmission priority or the second transmission priority and a third reception priority indicated in the detected third SCI; the second transmission priority being equal to a highest priority between the first transmission priority and the transmission priority of the auxiliary information;

[0229] A fourth determining module 1403 compares the RSRP measurement result with the RSRP threshold, and determines the fourth candidate resource set according to the comparison result;

[0230] The selection module 1404 reports the fourth candidate resource set to the MAC layer from the physical layer. The MAC layer randomly selects a candidate resource from the fourth candidate resource set to send the auxiliary information.

[0231] The processing of the second detection module 1401 , the third determination module 1402 , the fourth determination module 1403 , and the selection module 1404 may refer to 701 - 704 in the embodiment of the third aspect, and will not be repeated here.

[0232] In some embodiments, the processing is congestion control when sending the auxiliary information, and the first processing unit 1301 performs congestion control based on the first sending priority or the second sending priority, and the channel busy rate value currently measured; wherein the second sending priority is equal to the highest priority between the first sending priority and the sending priority of the auxiliary information; and the second processing unit 1302 determines whether to send the auxiliary information to the first UE or not based on the result of congestion control. Figure 15 This is a schematic diagram of the first processing unit 1301 in the embodiment of the present application. Figure 15 As shown, the first processing unit 1301 includes:

[0233] The fifth determining module 1501 determines a channel occupancy rate threshold corresponding to the first transmission priority or the second transmission priority and a currently measured channel busy rate value;

[0234] Control module 1502 performs congestion control based on the channel occupancy threshold

[0235] A receiving module 1503 receives resource pool configuration information, where the resource pool configuration information includes second indication information, where the second indication information is used to indicate whether to send auxiliary information;

[0236] The fifth determination module 1501 , the control module 1502 , and the receiving module 1503 correspond to 801 - 803 in the embodiment of the third aspect and are not described again here.

[0237] Furthermore, the second processing unit 1302 determines whether to send the auxiliary information to the first UE or not based on the congestion control result and the second indication information. When both the congestion control and the second indication information determine to send the auxiliary information, the second processing unit 1302 sends the auxiliary information; when at least one of the congestion control and the second indication information determines not to send the auxiliary information, the second processing unit 1302 does not send the auxiliary information.

[0238] Figure 16 This is another schematic diagram of the first processing unit 1301 in the embodiment of the present application. Figure 16 As shown, the first processing unit 1301 includes:

[0239] A sixth determining module 1601, which determines a second mapping table corresponding to the first sending priority or the second sending priority from at least one second table;

[0240] The seventh determining module 1602 determines first indication information indicating whether to send the auxiliary information according to the currently measured channel busy rate value and the second mapping table.

[0241] The sixth determination module 1601 and the seventh determination module 1602 correspond to 901 - 902 in the embodiment of the third aspect and are not described in detail here.

[0242] In some embodiments, the processing is discarding the auxiliary information or reducing the power when transmitting the auxiliary information. When the transmission or reception of the auxiliary information or information related to the auxiliary information overlaps with the transmission or reception of other information in time, the first processing unit 1301 determines whether to discard the auxiliary information and / or information related to the auxiliary information, or whether to reduce the power of transmitting the auxiliary information and / or information related to the auxiliary information, based on a comparison result of the first transmission priority or the second transmission priority with the transmission priority of the other information, wherein the second transmission priority is equal to the highest priority between the first transmission priority and the transmission priority of the auxiliary information. For example, when the first / second transmission priority is lower than the transmission priority of the other information, the second processing unit 1302 discards the auxiliary information or reduces the transmission power of the auxiliary information.

[0243] In some embodiments, the sending of the auxiliary information or the sending of information related to the auxiliary information includes: sending of the PSSCH of the auxiliary information, sending of the PSFCH carrying feedback information corresponding to the auxiliary information, and sending of at least one of the PUCCH carrying the fed information corresponding to the auxiliary information; the sending or receiving of the other information includes: sending or receiving of SL using LTE wireless access, sending of uplink data, and sending or receiving of the PSFCH carrying other feedback information.

[0244] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0245] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The information sending device 1300 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.

[0246] Also, for simplicity, Figure 13 The connection relationships and signal paths between the various components or modules are shown only as examples, but those skilled in the art will appreciate that various related technologies, such as bus connections, can be used. The aforementioned components or modules can be implemented using hardware such as processors, memories, transmitters, and receivers; this application is not intended to limit this.

[0247] It can be seen from the above embodiments that when executing the processing of sending auxiliary information to the opposite terminal device, the priority of the side link to be sent by the terminal device is not used, but the priority of the opposite terminal device that uses the auxiliary information to determine the data resource to send the data is used to determine the execution of the processing of sending auxiliary information to the opposite terminal device. Thus, the processing of sending auxiliary information to the opposite terminal device can be executed by considering the service sent by the opposite terminal device, so that the auxiliary information can more effectively assist the opposite terminal device in sending the service.

[0248] The embodiments of the first aspect and the third aspect described above may be implemented individually or in combination, and the embodiments of the present application are not limited thereto.

[0249] The above-mentioned embodiments of the eighth aspect and the tenth aspect can be implemented separately or in combination, and the embodiments of the present application are not limited to this.

[0250] Embodiment of the eleventh aspect

[0251] An embodiment of the present application provides an information sending device, which differs from the embodiment of the eighth aspect in that the first sending priority is configured or pre-configured by a higher layer, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the eighth aspect are not repeated here.

[0252] In some embodiments, the first transmission priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to generate the auxiliary information in a scenario where no trigger signaling (such as SCI) triggers the transmission of the auxiliary information.

[0253] Embodiments of the twelfth aspect

[0254] The embodiment of the present application provides a resource determination method, which differs from the embodiment of the ninth aspect in that the first transmission priority is configured or pre-configured by a higher layer, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the ninth aspect are not repeated here.

[0255] In some embodiments, the first transmission priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to generate the auxiliary information in a scenario where no trigger signaling (such as SCI) triggers the transmission of the auxiliary information.

[0256] Embodiments of the thirteenth aspect

[0257] The embodiment of the present application provides an information sending method, which differs from the embodiment of the tenth aspect in that the first sending priority is configured or pre-configured by a high-level layer, rather than being determined based on the priority of the first UE sending the first side link data. Other repetitions with the embodiment of the tenth aspect are not repeated here.

[0258] In some embodiments, the first sending priority can be configured in the resource pool configuration, in the wireless resource control signaling, or pre-configured, thereby solving the problem of how to execute the processing of sending auxiliary information to the opposite terminal device in a scenario where no trigger signaling (such as SCI) triggers the sending of auxiliary information.

[0259] Embodiment of the fourteenth aspect

[0260] The embodiment of the present application provides an information sending device. The device may be, for example, a terminal device, or may be one or more components or assemblies configured in the terminal device. The contents that are the same as those in the embodiment of the seventh aspect are not repeated here.

[0261] Figure 17is a schematic diagram of an information sending device according to an embodiment of the present application. Figure 17 As shown, the information sending device 1700 includes:

[0262] A third receiving unit 1701 receives auxiliary information sent by a second UE, wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, where the second resource set is determined by the second UE according to a first transmission priority, and the first transmission priority is determined according to a priority of the first UE for sending the first side link data;

[0263] The forwarding unit 1702 forwards the auxiliary information to the first UE.

[0264] In some embodiments, the specific implementation of the auxiliary information, the second resource set, the first sending priority, and the sending priority of the first SL data can refer to the embodiment of the first aspect, and the third receiving unit 1701 and the forwarding unit 1702 can refer to 1001-1002 of the seventh aspect, and the repeated parts will not be repeated.

[0265] It can be seen from the above embodiment that when the first UE is busy and cannot receive the auxiliary information, the fourth UE forwards the auxiliary information, thereby improving reliability.

[0266] Embodiments of the fifteenth aspect

[0267] The present application also provides a communication system. Figure 1 The same contents as those in the embodiments of the first to fourteenth aspects will not be repeated. The communication system 100 may include at least a second UE 102 and a first UE 103;

[0268] In some embodiments, the second UE 102 determines a second resource set based on a first transmission priority; sends auxiliary information to the first UE, the auxiliary information including time-frequency domain information of the resources in the second resource set, the second resource set is used by the first UE to determine the first candidate resource set for sending the first side link (SL) data, and the first transmission priority is determined according to the priority of the first UE to send the first SL data; the first UE 103 receives the auxiliary information and determines the first candidate resource set for sending the first side link data based on the second resource set.

[0269] In some embodiments, the second UE 102 performs processing related to sending auxiliary information to the first UE 103 according to the first transmission priority, and sends the auxiliary information to the first UE 103 according to the processing result, or does not send the auxiliary information, or reduces the power of sending the auxiliary information.

[0270] Optionally, the communication system 100 may further include: a fourth UE 104;

[0271] In some embodiments, the second UE 102 can also send auxiliary information to the fourth UE 104, and the fourth UE 104 forwards the auxiliary information to the first UE 103. The first UE 103 can also select resources from the first candidate resource set to send the first SL data, such as broadcast sending, multicast sending or unicast sending, for example, it can be sent to the second UE 102. This embodiment is not limited to this.

[0272] In some embodiments, the first priority may be high-level configured or pre-configured.

[0273] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.

[0274] Figure 18 Schematic diagram of the terminal device of the embodiment of the present application. Figure 18 As shown, the terminal device 1800 may include a processor 1810 and a memory 1820; the memory 1820 stores data and programs and is coupled to the processor 1810. It should be noted that this figure is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0275] For example, the processor 1810 can be configured to execute a program to implement the information transmission / resource determination method as described in the embodiments of aspects 1 to 7. For example, the processor 1810 is applied to the second UE and can be configured to perform the following control: determining a second resource set based on a first transmission priority; sending auxiliary information to the first UE, the auxiliary information including time-frequency domain information of resources in the second resource set, the second resource set being used by the first UE to determine a first candidate resource set for sending first side link data, wherein the first transmission priority is determined based on the priority of the first UE in sending the first side link data.

[0276] For example, the processor 1810 is applied to the first UE and can be configured to perform the following control: receiving auxiliary information sent by the second UE; wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, and the second resource set is determined by the second UE according to a first transmission priority, and the first transmission priority is determined according to the priority of the first UE to send the first side link data; determining a first candidate resource set for sending the first side link data according to the second resource set.

[0277] For example, the processor 1810 is applied to the second UE and can be configured to perform the following control: perform processing related to sending auxiliary information to the first UE according to the first transmission priority; wherein the auxiliary information is used by the first UE to determine the first candidate resource set for the first side link data to be sent, and the first transmission priority is determined according to the priority of the first UE to send the first side link data; according to the processing result, the auxiliary information is sent to the first UE, or the auxiliary information is not sent, or the power of sending the auxiliary information is reduced.

[0278] For example, processor 1810 is applied to the fourth UE and can be configured to perform the following control: receiving auxiliary information sent by the second UE; wherein the auxiliary information includes time-frequency domain information of resources in the second resource set, and the second resource set is determined by the second UE according to the first transmission priority, and the first transmission priority is determined according to the priority of the first UE to send the first side link data; forwarding the auxiliary information to the first UE.

[0279] In some embodiments, the first sending priority may also be configured by a higher layer or pre-configured.

[0280] like Figure 18 As shown, the terminal device 1800 may also include: a communication module 1830, an input unit 1840, a display 1850, and a power supply 1860. The functions of the above components are similar to those of the prior art and will not be described in detail here. It is worth noting that the terminal device 1800 does not necessarily have to include Figure 18 All the components shown in the figure are not necessary; in addition, the terminal device 1800 may also include Figure 18 For components not shown, reference may be made to the prior art.

[0281] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the information sending method described in the first, third to seventh embodiments.

[0282] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the information sending method described in the first, third to seventh embodiments.

[0283] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the resource determination method described in the embodiment of the second aspect.

[0284] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the resource determination method described in the embodiment of the second aspect.

[0285] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0286] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).

[0287] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0288] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0289] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.

Claims

1. An information sending device, applied to a second UE, wherein: The device comprises: a receiver, configured to receive first side link control information sent by a first UE, where the first side link control information is used to indicate a priority of the first UE in sending first side link data, and the first side link control information is further used to trigger sending of auxiliary information; a processor, configured to determine a first transmission priority according to a priority of the first UE for transmitting the first side link data, and determine a second resource set according to the first transmission priority; A transmitter is used to send the auxiliary information to the first UE, where the auxiliary information includes time-frequency domain information of resources in the second resource set, and the second resource set is used by the first UE to determine the first candidate resource set for the first side link data to be sent.

2. The device according to claim 1, wherein The processor is further configured to determine the second resource set by utilizing perception detection.

3. The device according to claim 1, wherein The first sending priority is the priority of the first UE to send the first side link data, or the transmitter is also used to send the auxiliary information to a third UE, and the second resource set is also used by the third UE to determine the third candidate resource set for sending the third side link data, wherein the first sending priority is the highest priority between the priority of the first UE to send the first side link data and the priority of the third side link sent by the third UE.

4. The device according to claim 1, wherein The sending priority of the auxiliary information is the first sending priority or is configured or pre-configured.

5. The device according to claim 1, wherein The processor determines, based on the first transmission priority and the third reception priority, whether all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are included in the second resource set, and the processor is further configured to: Detecting the second-side link control information, and measuring a reference signal corresponding to a PSCCH or a PSSCH corresponding to the second-side link control information to obtain an RSRP measurement result; determining an RSRP threshold for measurement resources according to the first transmission priority and a third reception priority indicated in the detected second SCI; The RSRP measurement result is compared with the RSRP threshold. When a second SCI is detected and the measurement result of the reference signal corresponding to the PSCCH or PSSCH corresponding to the detected second SCI is greater than the threshold, all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are included in the second resource set. Or, when a second SCI is detected and the measurement result of the reference signal corresponding to the PSCCH or PSSCH corresponding to the detected second SCI is less than the threshold, all or part of the PSSCH resources indicated by the second SCI indicating the third reception priority are included in the second resource set.

6. A resource determination device, applied to a first UE, wherein: The device comprises: a transmitter, configured to send first side link control information to a second UE, where the first side link control information is used to indicate a priority of the first UE in sending first side link data, and the first side link control information is further used to trigger sending of auxiliary information; A receiver, configured to receive the auxiliary information sent by the second UE; wherein the auxiliary information includes time-frequency domain information of resources in a second resource set, the second resource set being determined by the second UE according to a first transmission priority, and the first transmission priority being determined according to a priority of the first UE for transmitting the first side link data; A processor is configured to determine, based on the second resource set, a first candidate resource set for sending the first side link data.

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