Resource determination method, apparatus, communication device and storage medium

Abstract

An embodiment of the present disclosure provides a resource determination method, which is executed by a first terminal in sidelink (SL) communication. The method includes: determining whether the first terminal is a target terminal of a shared channel occupation time (COT) in response to receiving shared COT indication information transmitted from an initiating terminal of the shared COT; and determining transmission resources for performing SL transmission based on the shared COT indication information in response to determining that the first terminal is the target terminal of the shared COT. Thus, after receiving the shared COT indication information transmitted from the initiating terminal of the shared COT, if the terminal determines that the first terminal is the target terminal of the shared COT, it determines transmission resources for performing SL transmission based on the shared COT indication information. The reliability of SL data transmission can be improved by preferentially selecting resources within a time domain range indicated by the shared COT, rather than randomly determining transmission resources for performing SL transmission. Since the first terminal can use type 2 LBT in the shared COT, the success rate of LBT is improved.

Description

Technology field

[0001] The present disclosure relates to the field of wireless communication technologies, but is not limited to the field of wireless communication technologies, and more particularly to a resource determination method, apparatus, communication device and storage medium. [Background technology]

[0002] In wireless communication technology, a sidelink (SL) communication scheme has been introduced to support direct communication between terminals, and the interface between terminals is PC-5. Channel Occupancy Time (COT) sharing allows terminal devices to share and use preempted COT with other terminal devices, but there are some requirements for terminal devices that can share COT. Here, a terminal that initiates COT sharing is called a COT-initiating terminal (UE), and a terminal that uses the shared COT is called a responding terminal (UE). In related technology, in a communication scenario in which R18 SL operates in unlicensed spectrum, when a terminal operates in mode 2 (i.e., autonomous resource selection mode) and receives shared COT indication information, how to determine the SL transmission resource when resource selection or resource reselection is triggered is an issue that needs to be considered. Summary of the Invention

[0003] Embodiments of the present disclosure disclose a resource determination method, an apparatus, a communication device, and a storage medium.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a resource determination method performed by a first terminal in sidelink (SL) communication, the method comprising: In response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, determining whether the first terminal is a target terminal of the shared COT; In response to determining that the first terminal is a target terminal of the shared COT, determining a transmission resource for performing SL transmission based on the shared COT indication information.

[0005] In one embodiment, the step of determining transmission resources for performing SL transmission based on the shared COT indication information comprises: The method includes determining, in response to resource selection or resource reselection being triggered by the first terminal, a transmission resource for performing SL transmission based on the shared COT indication information.

[0006] In one embodiment, the shared COT indication information is: A starting symbol, a starting slot, a starting subframe, or a starting frame of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the shared COT; The duration of the shared COT, the starting symbol, starting slot, starting subframe, or starting frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; The remaining time length of the shared COT; Identification information of the initiating terminal of the shared COT; Identification information of the target terminal of the shared COT; and Channel Access Priority Class (CAPC) information of the shared COT.

[0007] In one embodiment, the step of determining whether the first terminal is a target of the shared COT comprises: The step of determining whether the first terminal is a target terminal of the shared COT based on a destination address and a service type of a data packet carrying the shared COT indication information, wherein the service type is a service type indicated by an SCI carrying the shared COT indication information.

[0008] In one embodiment, the step of determining whether the first terminal is a target terminal or a responding terminal of the shared COT based on a destination address and a service type of a data packet including the shared COT indication information includes: determining that the first terminal is a target terminal of the shared COT in response to the service type being a unicast service and the destination address indicated by the sidelink control information (SCI) including the shared COT indication information being a Layer 2 address of the first terminal; Or, determining that the first terminal is a target terminal of the shared COT in response to the service type being a multicast service, the destination address indicated by the SCI containing the shared COT indication information being a Layer 2 address associated with the multicast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal; Or, The method includes a step of determining that the first terminal is a target terminal of the shared COT in response to the service type being a broadcast service, the destination address indicated by the SCI containing the shared COT indication information being a Layer 2 address associated with the broadcast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal.

[0009] In one embodiment, the step of determining transmission resources for performing SL transmission based on the shared COT indication information comprises: The method includes determining the transmission resources from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resources include time domain resources and frequency domain resources.

[0010] In one embodiment, the step of determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information comprises: The method includes a step of determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information in response to the first terminal being configured by an upper layer to perform full sensing or partial sensing.

[0011] In one embodiment, the step of determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information comprises: The method includes a step of determining the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of the target transmitting terminal, the number of selected frequency resources, and the remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, wherein the time domain resource indicated by the transmission resource is included in the time domain range indicated by the shared COT indication information.

[0012] In one embodiment, the method comprises: In response to the transmission resource not being determined from among the candidate resources provided by the physical layer based on the number of selected frequency resources and / or the PDB of waiting data for transmission of logical channels transmittable on the carrier and the time domain information indicated by the COT sharing information, the method further includes a step of randomly selecting the transmission resource from among the candidate resources provided by the physical layer based on the number of selected frequency resources and / or the PDB of waiting data for transmission of logical channels transmittable on the carrier.

[0013] In one embodiment, the target sending terminal is the initiating terminal of the shared COT.

[0014] According to a second aspect of an embodiment of the present disclosure, there is provided a resource determination apparatus, comprising: The communication system includes a determination module configured to determine whether a first terminal is a target terminal of a shared channel occupation time (COT) in response to receiving shared COT indication information transmitted from an initiating terminal of the shared COT, and to determine a transmission resource for performing SL transmission based on the shared COT indication information in response to determining that the first terminal is a target terminal of the shared COT.

[0015] According to a third aspect of an embodiment of the present disclosure, there is provided a communication device, comprising: a processor; a memory for storing instructions executable by said processor; wherein the processor, when executing the executable instructions, is configured to implement a method according to any embodiment of the present disclosure.

[0016] According to a fourth aspect of an embodiment of the present disclosure, there is provided a computer storage medium having a computer-executable program stored thereon, the executable program, when executed by a processor, realizing a method according to any embodiment of the present disclosure.

[0017] In an embodiment of the present disclosure, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared COT, the terminal determines whether it is a target terminal of the shared COT, and in response to determining that the first terminal is the target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information. In this way, after receiving the shared COT indication information transmitted from the initiating terminal of the shared COT, if the terminal determines that the first terminal is the target terminal of the shared COT, it determines transmission resources for performing SL transmission based on the shared COT indication information. This method determines transmission resources suitable for the COT, thereby improving the reliability of SL transmission, compared to a method of randomly determining transmission resources for performing SL transmission. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment; [Figure 2] 1 is a schematic flowchart of a resource determination method according to an exemplary embodiment; [Figure 3] 1 is a schematic flowchart of a resource determination method according to an exemplary embodiment; [Figure 4] 1 is a schematic flowchart of a resource determination method according to an exemplary embodiment; [Figure 5] 1 is a schematic flowchart of a resource determination method according to an exemplary embodiment; [Figure 6] 1 is a schematic flowchart of a resource determination method according to an exemplary embodiment; [Figure 7] 1 is a schematic diagram of a resource determination device illustrated by an exemplary embodiment; [Figure 8] FIG. 2 is a schematic diagram of a terminal according to an exemplary embodiment; [Figure 9] FIG. 2 is a block diagram of a base station according to an exemplary embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0019] Reference will now be made in detail to illustrative embodiments, examples of which are illustrated in the drawings. Where the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as set forth in the appended claims.

[0020] The terms used in the embodiments of the present disclosure are used to describe particular embodiments and are not intended to limit the embodiments of the present disclosure. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are intended to include the plural forms. Furthermore, the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] Although embodiments of the present disclosure may use terms such as "first," "second," and "third" to describe various pieces of information, these pieces of information should not be limited to these terms. These terms are used only to distinguish between the same types of information. For example, first information may be referred to as "second information," and similarly, second information may be referred to as "first information" without departing from the scope of embodiments of the present disclosure. Depending on the context, the term "when" as used herein may be understood as "when" or "during" or "in response to a determination."

[0022] For purposes of brevity and ease of understanding, this specification uses the terms "greater than" or "smaller," "higher" or "lower" when expressing size relationships. As would be understood by one of ordinary skill in the art, the term "greater than" includes the meaning of "greater than or equal to," and the term "smaller" includes the meaning of "smaller than or equal to."

[0023] 1, which is a schematic diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in FIG. 1, the wireless communication system is a communication system based on mobile communication technology, and may include several user equipments 110 and several base stations 120.

[0024] Here, user equipment 110 may refer to devices that provide voice and / or data connectivity to a user. The user equipment 110 can communicate with one or more core networks via a Radio Access Network (RAN). The user equipment 110 may be a UE, such as a sensor device, a mobile phone, or an Internet of Things computer UE, and may be, for example, a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device. For example, the user equipment 110 may be a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal (UE), access terminal (UE), user terminal, user agent, user device, or user equipment. Alternatively, the user equipment 110 may be an in-vehicle device, such as a mobile computer with wireless communication capabilities or a wireless communication device with an external mobile computer, or may be a roadside device, such as a street lamp, traffic light, or other roadside device with wireless communication capabilities.

[0025] The base station 120 may be a network-side device in a wireless communication system. Here, the wireless communication system may be the 4th generation mobile communication (4G) system, also called a Long Term Evolution (LTE) system, or the wireless communication system may be a 5G system, also called a New Radio system or a 5G New Radio (NR) system. Or the wireless communication system may be a system of the next generation of the 5G system. Here, the access network in the 5G system may be called a New Generation-Radio Access Network (NG-RAN).

[0026] Here, the base station 120 may be an evolved base station (eNB) used in a 4G system. Alternatively, the base station 120 may be a base station (gNB) using a centralized-distributed architecture in a 5G system. When the base station 120 uses a centralized-distributed architecture, it typically includes a central unit (CU) and at least two distributed units (DUs). The centralized unit is configured with protocol stacks for a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer, while the distributed units are configured with a physical (PHY) layer protocol stack. The embodiments of the present disclosure do not limit the specific implementation of the base station 120.

[0027] A wireless connection can be established between the base station 120 and the user equipment 110 through a wireless interface. In different embodiments, the wireless interface is a wireless interface based on a fourth generation mobile communication network technology (4G) standard, or the wireless interface is a wireless interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless interface is a new radio, or the wireless interface may be a wireless interface based on a next generation mobile communication network technology standard after 5G.

[0028] In some embodiments, end-to-end (E2E) connections may be established between user equipment 110, such as vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication scenarios in vehicle-to-everything (V2X) communications.

[0029] Here, the above user equipment may be considered as the first terminal in the following embodiments.

[0030] In some embodiments, the above wireless communication system may further include a network management device 13 .

[0031] The base stations 120 are each connected to a network management device 13. Here, the network management device 13 may be a core network device in a wireless communication system, for example, a mobility management entity (MME) in an evolved packet core network (EPC). Alternatively, the network management device may be another core network device, for example, a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The implementation of the network management device 13 is not limited in the embodiments of the present disclosure.

[0032] In order to facilitate the understanding of those skilled in the art, the embodiments of the present disclosure will be described by taking several examples to clearly explain the technical ideas of the embodiments of the present disclosure. Of course, those skilled in the art will understand that the several examples provided by the embodiments of the present disclosure may be implemented alone, may be implemented in combination with the methods of other embodiments in the embodiments of the present disclosure, or may be implemented alone or in combination with some methods of other related art, and are not limited to the embodiments of the present disclosure.

[0033] To better understand the embodiments of the present disclosure, a wireless communication scenario will now be described.

[0034] In one embodiment, a sidelink communication mode is introduced to support direct communication between terminals, and the interface between terminals is PC-5. Based on the correspondence between the transmitting terminal and the receiving terminal, sidelink communication supports three transmission modes: unicast, multicast, and broadcast. The transmitting terminal transmits sidelink control information (SCI) on a physical sidelink control channel (PSCCH) and transmits second-stage SCI on a physical sidelink shared channel (PSSCH), where the second-stage SCI includes the resource location, source identifier, and destination identifier of the transmitted data. For data packets valid for hybrid automatic repeat reQuest (HARQ) feedback, the receiving terminal provides HARQ-ACK feedback for the PSSCH on a physical sidelink feedback channel (PSFCH).

[0035] In one embodiment, two transmission resource allocation methods are available for sidelink communication: one is a dynamic scheduling method by the network (corresponding to mode 1); and the other is a method in which the terminal autonomously selects transmission resources from a resource pool (corresponding to mode 2). Here, the dynamic scheduling method refers to the network dynamically allocating sidelink transmission resources to the terminal based on the terminal's buffer data report, and the autonomous selection method refers to the terminal randomly selecting transmission resources from a resource pool broadcast by the network or pre-configured by the terminal. The network can configure multiple resource pools for the terminal in one bandwidth part (BWP). Specifically, the allocation method to be used is configured by the network side via radio resource control (RRC) signaling.

[0036] In one embodiment, New Radio Unlicensed (NR-U) supports uplink and downlink operation in unlicensed spectrum. In NR-U, both downlink and uplink channel access rely on the Listen Before Talk (LBT) mechanism. A wireless device or base station first "senses" the communication channel and discovers that there is no communication before any transmission. When a communication channel is a single unlicensed wideband carrier (e.g., several hundred megahertz), the LBT process relies on energy level detection in multiple subbands of the communication channel. LBT parameters (e.g., type, duration, and explicit channel assessment parameters) are configured in the wireless device by the base station. LBT types include type 1 and type 2. Type 1 is based on a contention window, where the length of channel monitoring is determined by a random number. Channel access is granted only after the random number equals 0 and the channel becomes idle. Type 2 is based on a fixed-duration monitoring channel, such as 25 us or 16 us. Channel Access Priority Class (CAPC) is a parameter related to LBT. Different CAPCs affect the priority of channel contention. A smaller CAPC value indicates a higher priority.

[0037] COT sharing is a feature of R18S SL-U, which allows terminal devices with type 1 LBT to preempt and share the COT with other terminal devices. However, there are some requirements for terminal devices that can share the COT. Here, the terminal device that initiates COT sharing is called the COT initiating terminal (COT initiating UE), and the terminal device that uses the shared COT is called the target terminal or responding terminal (responding UE). In one embodiment, COT sharing can only be performed if the responding UE is the target receiving terminal of the COT initiating UE. However, it is still under discussion whether this should be limited to the target receiving terminal of the PSSCH data of the COT initiating UE or to the target receiving terminal of all SL transmissions. In addition, the CAPC of the data packet of the responding UE must be less than or equal to the CAPC included in the shared COT information.

[0038] In one embodiment, COT sharing applies to both mode 1 and mode 2. When the first terminal operates in mode 2 and triggers resource selection or reselection, if the first terminal is not configured by a higher layer to perform random selection, the first terminal must select resources from candidate resources provided by the physical layer. The selected resources must be within the activation time of the target terminal (if DRX is configured). The first terminal selects resources based on the number of selected frequency resources and / or the packet delay budget (PDB) requirements of the remaining data waiting to be transmitted for logical channels that can be transmitted on the carrier. Upon receiving the COT sharing information, the first terminal can share a portion of the COT. By preferentially selecting resources within the shared COT, the impact of LBT failure on SL communication can be reduced.

[0039] As shown in FIG. 2, this embodiment provides a resource determination method, where the method is performed by a first terminal in sidelink (SL) communication, and includes the following step 21:

[0040] In step 21, the transmission resources for performing the SL transmission are determined based on the shared COT indication information.

[0041] Here, the terminal according to the present disclosure may be, but is not limited to, a mobile phone, a wearable device, an in-vehicle terminal, a roadside unit (RSU), a smart home terminal, an industrial sensing device, and / or a medical device. In some embodiments, the terminal may be a Redcap terminal or a new version of a wireless NR terminal (e.g., an R17 NR terminal). The first terminal in sidelink (SL) communication may be a terminal that communicates based on the SL protocol.

[0042] Note that the target terminal in the present disclosure may also be referred to as a responding terminal, which is a responding UE in a shared COT.

[0043] The base station according to the present disclosure may be a base station of various types, for example, a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations.

[0044] In one embodiment, the first terminal determines whether it is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information. That is, only if the first terminal is a target terminal of the shared COT, the first terminal determines transmission resources for performing SL transmission based on the shared COT indication information. If the first terminal is not a target terminal of the shared COT, the first terminal does not determine transmission resources for performing SL transmission based on the shared COT indication information.

[0045] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information.

[0046] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource selection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0047] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource reselection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0048] In one embodiment, a transmission resource for performing SL transmission is determined based on the shared COT indication information, wherein the shared COT indication information indicates at least one of: a start symbol, a start slot, a start subframe, or a start frame of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the shared COT; a duration of the shared COT; a start symbol, a start slot, a start subframe, or a start frame of the remaining COTs of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COTs of the shared COT; a remaining duration of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0049] In one embodiment, in response to determining that the first terminal is a target terminal of a shared COT, determine transmission resources for performing SL transmission based on shared COT indication information, wherein the shared COT indication information indicates at least one of: a start symbol, a start slot, a start subframe, or a start frame of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the shared COT; a duration of the shared COT; a start symbol, a start slot, a start subframe, or a start frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; a remaining duration of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0050] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared COT, a first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information, wherein the shared COT indication information includes a start symbol, a start slot, a start subframe or a start frame of the shared COT, an end symbol of the shared COT, The shared COT indicates at least one of the following: an end slot, an end subframe, or an end frame; a duration of the shared COT; a start symbol, a start slot, a start subframe, or a start frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; a remaining time length of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0051] In one embodiment, in response to resource selection or resource reselection being triggered by a first terminal, a transmission resource for performing SL transmission is determined based on the shared COT indication information, wherein the shared COT indication information indicates at least one of: a start symbol, a start slot, a start subframe, or a start frame of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the shared COT; a duration of the shared COT; a start symbol, a start slot, a start subframe, or a start frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; a remaining duration of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0052] In one embodiment, in response to determining that a first terminal is a target terminal of a shared COT and triggering resource selection or resource reselection by the first terminal, determine a transmission resource for performing SL transmission based on shared COT indication information, wherein the shared COT indication information indicates at least one of: a start symbol, a start slot, a start subframe, or a start frame of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the shared COT; a duration of the shared COT; a start symbol, a start slot, a start subframe, or a start frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; a remaining duration of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0053] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared COT, a first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT and triggering resource selection or resource reselection by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information, where the shared COT indication information indicates a start symbol, a start slot, a start subframe, or a start frame of the shared COT. The shared COT indication information indicates at least one of: an end symbol, an end slot, an end subframe, or an end frame of the shared COT; a duration of the shared COT; a start symbol, a start slot, a start subframe, or an end frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; a remaining duration of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT. In one embodiment, the shared COT indication information is used to determine whether the first terminal is a target terminal of the shared COT based on a destination address of a data packet containing the shared COT indication information. In response to determining that the first terminal is a target terminal of the shared COT, the shared COT indication information is used to determine transmission resources for performing SL transmission.

[0054] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT based on a destination address of a data packet including the shared COT indication information, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information.

[0055] In one embodiment, the first terminal determines whether it is a target terminal of the shared COT based on a destination address and a service type of the data packet including the shared COT indication information, the service type being a service type indicated by an SCI including the shared COT indication information, which may be a unicast service, a multicast service, or a broadcast service.

[0056] In one embodiment, in response to a service type indicated by the SCI including the shared COT indication information being a unicast service and a destination address indicated by the sidelink control information (SCI) including the shared COT indication information being a Layer 2 address of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to the determination that the first terminal is a target terminal of the shared COT, transmission resources for performing SL transmission are determined based on the shared COT indication information.

[0057] In one embodiment, the first terminal determines that the first terminal is a target terminal of the shared COT in response to determining that a source Layer-1 address (Source Layer-1 ID) included in the SCI including the shared COT indication information is equal to 8 LSBs (Least Significant Bits) of the Layer 2 address of the COT initiating terminal, a destination Layer-1 address (Destination Layer-1 ID) included in the SCI including the shared COT indication information is equal to 16 LSBs (Least Significant Bits) of the Layer 2 address of the first terminal, and a cast type indicated by the SCI including the shared COT indication information is unicast. In response to determining that the first terminal is a target terminal of the shared COT, the first terminal determines transmission resources for performing SL transmission based on the shared COT indication information.

[0058] Exemplarily, if a unicast connection exists between the first terminal and the initiating terminal of the shared COT, and the destination address of the data packet (SL MAC PDU) carrying the shared COT indication information is the Layer 2 address of the first terminal, the first terminal determines that it is the responding terminal of the shared COT.

[0059] In one embodiment, in response to a service type indicated by the SCI including the shared COT indication information being a multicast service, a destination address indicated by the SCI including the shared COT indication information being a Layer 2 address associated with the multicast service, and a target terminal identifier indicated by the shared COT indication information being the same as a terminal identifier of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to determining that the first terminal is a target terminal of the shared COT, transmission resources for performing SL transmission are determined based on the shared COT indication information.

[0060] In one embodiment, a first terminal determines that the first terminal is a target terminal of the shared COT when the destination Layer-1 address (Destination Layer-1 ID) included in the SCI containing the shared COT indication information is equal to 16 LSBs (Least Significant Bits) of the intended destination Layer-2 address / destination Layer-1 address, the cast type indicated by the SCI containing the shared COT indication information is multicast, and the target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal. In response to determining that the first terminal is a target terminal of the shared COT, the first terminal determines transmission resources for performing SL transmission based on the shared COT indication information. The expected destination Layer-2 address is associated with the multicast service. The target terminal identifier indicated by the shared COT indication information may be the Layer-2 address of the target terminal, the application layer address of the target terminal, or the member ID of the target terminal. The terminal identifier of the first terminal may be at least one of the following: when the target terminal identifier indicated by the shared COT instruction information is the Layer 2 address of the target terminal, the Layer 2 address of the target terminal is the same as the Layer 2 address of the first terminal; when the target terminal identifier indicated by the shared COT instruction information is the application layer address of the target terminal, the application layer address of the target terminal is the same as the application layer address of the first terminal; and when the target terminal identifier indicated by the shared COT instruction information is the member ID of the target terminal, the member ID of the target terminal is the same as the member ID of the first terminal. Exemplarily, the target terminal identifier indicated by the shared COT instruction information may be realized in other forms and is not particularly limited in this embodiment.

[0061] Exemplarily, when a multicast service is performed between the first terminal and the initiating terminal of the shared COT, the first terminal and the initiating terminal of the shared COT belong to the same group, the destination address of a data packet (SL MAC PDU) containing the shared COT indication information is a Layer 2 address associated with the multicast service, and the target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal, the first terminal determines that it is a responding terminal of the shared COT.

[0062] In one embodiment, a broadcast service is performed between the first terminal and an initiating terminal of the COT, and in response to a destination address indicated by an SCI including the shared COT indication information being a Layer 2 address associated with the broadcast service and a target terminal identifier indicated by the shared COT indication information being the same as a terminal identifier of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to determining that the first terminal is a target terminal of the shared COT, a transmission resource for performing SL transmission is determined based on the shared COT indication information.

[0063] In one embodiment, a first terminal determines that the first terminal is a target terminal of the shared COT when a destination Layer-1 address (Destination Layer-1 ID) included in an SCI containing the shared COT indication information is equal to an intended destination Layer-2 address or 16 LSBs (Least Significant Bits) of the destination Layer-1 address, the cast type indicated by the SCI is broadcast, and the target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal. In response to determining that the first terminal is a target terminal of the shared COT, the first terminal determines transmission resources for performing SL transmission based on the shared COT indication information. Note that the expected destination Layer-2 address is associated with the broadcast service, and the broadcast service is a broadcast service that the first terminal is interested in receiving. Note that the target terminal identifier indicated by the shared COT indication information may be a Layer-2 address of the target terminal or an application layer address of the target terminal. The term "being the same as the terminal identifier of the first terminal" means that, if the target terminal identifier indicated by the shared COT indication information is the Layer 2 address of the target terminal, the target terminal Layer 2 address is the same as the Layer 2 address of the first terminal, or, if the target terminal identifier indicated by the shared COT indication information is the application layer address of the target terminal, the application layer address of the target terminal is the same as the application layer address of the first terminal. Exemplarily, the target terminal identifier indicated by the shared COT indication information may be realized in other forms and is not particularly limited in this embodiment.

[0064] Exemplarily, when a broadcast service is performed between the first terminal and the initiating terminal of the shared COT, and the destination address of a data packet (SL MAC PDU) containing the COT sharing information is a Layer 2 address associated with the broadcast service of interest to the first terminal device, and the target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal, the first terminal determines that it is a responding terminal of the shared COT.

[0065] In one embodiment, the method determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0066] In one embodiment, the method determines whether the first terminal is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource selection or resource reselection being triggered by the first terminal, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0067] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, determine whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determine the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0068] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared COT, determine whether the first terminal is a target terminal of the shared COT; and in response to determining that the first terminal is a target terminal of the shared COT and triggering resource selection or resource reselection by the first terminal, determine the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0069] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and the first terminal being configured by a higher layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0070] For example, when the first terminal has its own sensing result and receives the shared COT indication information, the first terminal selects a resource from the intersection of time domain information indicated by the shared COT indication information and candidate resources provided by a physical layer. Note that the first terminal having its own sensing result refers to the first terminal being configured by an upper layer to perform full sensing or partial sensing.

[0071] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection or resource reselection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource.

[0072] In one embodiment, the transmission resource is determined from among candidate resources provided by the physical layer based on at least one of the activation time of the target transmitting terminal (if discontinuous reception DRX is set), the number of selected frequency resources, and the remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels that can be transmitted on the carrier, and time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in the time domain range indicated by the shared COT indication information.

[0073] Illustratively, the time domain resource indicated by the transmission resource is included within the duration of the remaining COT of the shared COT indicated by the shared COT indication information.

[0074] Illustratively, the time domain resource indicated by the transmission resource is included within the duration of the shared COT indicated by the shared COT indication information.

[0075] Illustratively, the time domain resource indicated by the transmission resource is included within the duration of the shared COT indicated by the shared COT indication information, or the time domain resource indicated by the transmission resource is included within the duration of the remaining COT of the shared COT indicated by the shared COT indication information.

[0076] For example, if the shared COT indication information includes the duration of the shared COT or the duration of the remaining COT of the shared COT, the first terminal can determine the duration of the shared COT or the duration of the remaining COT of the shared COT.

[0077] For example, if the shared COT indication information includes the start time of the shared COT and the end time of the shared COT, the first terminal device can determine the duration of the shared COT based on the start time of the shared COT and the end time of the shared COT.

[0078] For example, if the shared COT indication information includes the start time of the remaining COT of the shared COT and the end time of the remaining COT of the shared COT, the first terminal can determine the duration of the remaining COT of the shared COT based on the start time of the remaining COT of the shared COT and the end time of the remaining COT of the shared COT.

[0079] Here, the start time of the shared COT may be represented by a frame, subframe, slot, or symbol, the end time of the shared COT may be represented by a frame, subframe, slot, or symbol, the start times of the remaining COTs of the shared COT may be represented by a frame, subframe, slot, or symbol, and the end times of the remaining COTs of the shared COT may be represented by a frame, subframe, slot, or symbol.

[0080] In addition, the target transmitting terminal of the transmission resource may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the COT initiating terminal or the Layer 2 address of another terminal). Exemplarily, the target transmitting terminal of the transmission resource may be limited to only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource is only the Layer 2 address of the COT initiating terminal).

[0081] In one embodiment, the first terminal selects resources from the intersection of the candidate resources provided by the physical layer and the time domain indicated by the shared COT. The selected transmission resources must be within the activation time of the target transmitting terminal (if Discontinuous Reception DRX is configured) and select resources based on the number of selected frequency resources and the remaining PDB request for pending data of logical channels transmittable on the carrier. The target transmitting terminal of the transmission resources may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the initiating terminal of the shared COT or the Layer 2 address of another terminal).

[0082] In one embodiment, the first terminal selects resources from the intersection of the candidate resources provided by the physical layer and the time domain indicated by the shared COT. The selected transmission resource must be within the activation time of the target transmitting terminal (if Discontinuous Reception DRX is configured) and selects resources based on the number of selected frequency resources and the remaining PDB requirements of the pending data of the logical channels transmittable on the carrier. The target transmitting terminal of the transmission resource is only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource is only the Layer 2 address of the initiating terminal of the shared COT).

[0083] In one embodiment, the first terminal selects a transmission resource from the intersection of the time domain resource indicated by the shared COT indication information and the candidate resource provided by the physical layer, and then randomly selects a resource from the candidate resource provided by the physical layer.

[0084] In response to the transmission resource not being determined from among the candidate resources provided by the physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on the carrier and the time domain information indicated by the COT sharing information, randomly select the transmission resource from among the candidate resources provided by the physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on the carrier, where the transmission resources include time domain resources and frequency domain resources.

[0085] In one embodiment, if there is no selectable resource at the intersection of the candidate resources provided by the physical layer and the time domain indicated by the shared COT based on the number of selected frequency resources and the remaining PDB of data waiting to be transmitted of logical channels transmittable on the carrier, the first terminal randomly selects a resource from the candidate resources provided by the physical layer based on the number of selected frequency resources and the remaining PDB of data waiting to be transmitted of logical channels transmittable on the carrier. The target transmitting terminal of the transmission resource may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the initiating terminal of the shared COT or the Layer 2 address of another terminal). In one embodiment, the target transmitting terminal of the transmission resource may be limited to only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource may be only the Layer 2 address of the initiating terminal of the shared COT).

[0086] In an embodiment of the present disclosure, in response to receiving the shared channel occupation time (COT) indication information transmitted from the initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is the target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information. Thus, after receiving the shared COT indication information transmitted from the initiating terminal of the shared COT, if the first terminal determines that the first terminal is a target terminal of the shared COT, it determines transmission resources for performing SL transmission based on the shared COT indication information. This method prioritizes the selection of resources within a time domain range indicated by the shared COT, rather than randomly determining transmission resources for performing SL transmission, thereby improving the reliability of SL data transmission. Since the first terminal can use type 2 LBT in the shared COT, the success rate of LBT is improved.

[0087] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0088] As shown in FIG. 3, this embodiment provides a resource determination method, where the method is performed by a first terminal in sidelink (SL) communication, and includes the following steps 31-32.

[0089] In step 31, in response to receiving the shared channel occupation time (COT) indication information transmitted from the initiating terminal of the shared COT, it is determined whether the first terminal is a target terminal of the shared COT.

[0090] In step 32, in response to determining that the first terminal is a target terminal of the shared COT, determine a transmission resource for performing SL transmission based on the shared COT indication information.

[0091] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource selection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0092] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource reselection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0093] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information, wherein the shared COT indication information includes a start symbol, a start slot, a start subframe or a start frame of the shared COT, and an end symbol of the shared COT. The shared COT indicates at least one of: the start symbol, start slot, start subframe, or start frame of the remaining COT of the shared COT; the end symbol, end slot, end subframe, or end frame of the remaining COT of the shared COT; the remaining time length of the shared COT; identification information of an initiating terminal of the shared COT; identification information of a target terminal of the shared COT; and channel access priority class (CAPC) information of the shared COT.

[0094] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT based on a destination address of a data packet including the shared COT indication information, and in response to determining that the first terminal is a target terminal of the shared COT, determines transmission resources for performing SL transmission based on the shared COT indication information.

[0095] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0096] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource.

[0097] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection or resource reselection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, the first terminal determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of a target transmitting terminal, a number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels transmittable on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information.

[0098] In one embodiment, in response to receiving shared channel occupation time (COT) indication information transmitted from an initiating terminal of a shared channel occupation time (COT), determine whether a first terminal is a target terminal of the shared COT; determine that the first terminal is a target terminal of the shared COT; trigger resource selection or resource reselection by the first terminal; configure the first terminal by a higher layer to perform full sensing or partial sensing; and in response to the transmission resource not being determined from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier and time domain information indicated by the COT sharing information, randomly select the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier, wherein the transmission resource includes time domain resources and frequency domain resources.

[0099] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0100] As shown in FIG. 4, this embodiment provides a resource determination method, where the method is performed by a first terminal in sidelink (SL) communication, and includes the following step 41:

[0101] In step 41, in response to a resource selection or resource reselection being triggered by the first terminal, a transmission resource for performing SL transmission is determined based on the shared COT indication information.

[0102] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource selection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0103] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether it is a target terminal of the shared COT, and in response to the first terminal being determined to be a target terminal of the shared COT and resource reselection being triggered by the first terminal, determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0104] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0105] As shown in FIG. 5, this embodiment provides a resource determination method, where the method is performed by a first terminal in sidelink (SL) communication, and includes the following step 51:

[0106] In step 51, it is determined whether the first terminal is a target terminal of the shared COT based on the destination address of the data packet containing the shared COT indication information.

[0107] In one embodiment, the first terminal determines whether it is a target terminal of the shared COT based on a destination address and a service type of the data packet including the shared COT indication information, the service type being a service type indicated by an SCI including the shared COT indication information, which may be a unicast service, a multicast service, or a broadcast service.

[0108] In one embodiment, the method determines whether the first terminal is a target terminal of the shared COT based on a destination address of a data packet including the shared COT indication information. In response to determining that the first terminal is a target terminal of the shared COT, the method determines transmission resources for performing SL transmission based on the shared COT indication information. In one embodiment, in response to receiving shared COT indication information transmitted from an initiating terminal of a shared channel occupation time (COT), the method determines whether the first terminal is a target terminal of the shared COT based on a destination address of a data packet including the shared COT indication information. In response to determining that the first terminal is a target terminal of the shared COT, the method determines transmission resources for performing SL transmission based on the shared COT indication information.

[0109] In one embodiment, in response to a service type indicated by the SCI including the shared COT indication information being a unicast service and a destination address indicated by the sidelink control information (SCI) including the shared COT indication information being a Layer 2 address of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to the determination that the first terminal is a target terminal of the shared COT, transmission resources for performing SL transmission are determined based on the shared COT indication information.

[0110] In one embodiment, the first terminal determines that the first terminal is a target terminal of the shared COT in response to determining that a source Layer-1 address (Source Layer-1 ID) included in the SCI including the shared COT indication information is equal to 8 LSBs (Least Significant Bits) of the Layer 2 address of the COT initiating terminal, a destination Layer-1 address (Destination Layer-1 ID) included in the SCI including the shared COT indication information is equal to 16 LSBs (Least Significant Bits) of the Layer 2 address of the first terminal, and a cast type indicated by the SCI including the shared COT indication information is unicast. In response to determining that the first terminal is a target terminal of the shared COT, the first terminal determines transmission resources for performing SL transmission based on the shared COT indication information.

[0111] Exemplarily, if a unicast connection exists between the first terminal and the initiating terminal of the shared COT, and the destination address of the data packet (SL MAC PDU) carrying the shared COT indication information is the Layer 2 address of the first terminal, the first terminal determines that it is the responding terminal of the shared COT.

[0112] In one embodiment, in response to the service type of the data packet including the shared COT indication information being a multicast service, the destination address indicated by the SCI including the shared COT indication information being a Layer 2 address associated with the multicast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to the determination that the first terminal is a target terminal of the shared COT, transmission resources for performing SL transmission are determined based on the shared COT indication information.

[0113] In one embodiment, a first terminal determines that the first terminal is a target terminal of the shared COT in response to a determination that a destination Layer-1 address (Destination Layer-1 ID) included in the SCI including the shared COT indication information is equal to 16 LSBs (Least Significant Bits) of an intended destination Layer-2 address or a destination Layer-1 address, a cast type indicated by the SCI including the shared COT indication information is multicast, and a target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal. In response to the determination that the first terminal is a target terminal of the shared COT, the first terminal determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0114] The expected destination Layer 2 address is associated with the multicast service. The target terminal identifier indicated by the shared COT indication information may be the Layer 2 address of the target terminal, the application layer address of the target terminal, or the member ID of the target terminal. The term "being the same as the terminal identifier of the first terminal" refers to one of the following: if the target terminal identifier indicated by the shared COT indication information is the Layer 2 address of the target terminal, the Layer 2 address of the target terminal is the same as the Layer 2 address of the first terminal; if the target terminal identifier indicated by the shared COT indication information is the application layer address of the target terminal, the application layer address of the target terminal is the same as the application layer address of the first terminal; or if the target terminal identifier indicated by the shared COT indication information is the member ID of the target terminal, the member ID of the target terminal is the same as the member ID of the first terminal. Exemplarily, the target terminal identifier indicated by the shared COT indication information may be implemented in other forms and is not particularly limited in this embodiment.

[0115] Exemplarily, in response to a multicast service being performed between the first terminal and the initiating terminal of the shared COT, the first terminal and the initiating terminal of the shared COT belonging to the same group, the destination address of a data packet (SL MAC PDU) containing the shared COT indication information being a Layer 2 address associated with the multicast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal, the first terminal determines that it is a responding terminal of the shared COT.

[0116] In one embodiment, when a broadcast service is performed between the first terminal and an initiating terminal of the COT, and a destination address indicated by an SCI including the shared COT indication information is a Layer 2 address associated with the broadcast service, and a target terminal identifier indicated by the shared COT indication information is the same as a terminal identifier of the first terminal, the first terminal is determined to be a target terminal of the shared COT. In response to determining that the first terminal is a target terminal of the shared COT, a transmission resource for performing SL transmission is determined based on the shared COT indication information.

[0117] In one embodiment, a first terminal determines that the first terminal is a target terminal of the shared COT in response to a determination that a destination Layer-1 address (Destination Layer-1 ID) included in an SCI including the shared COT indication information is equal to 16 LSBs (Least Significant Bits) of an intended destination Layer-2 address or a destination Layer-1 address, that a cast type indicated by the SCI is broadcast, and that a target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal. In response to the determination that the first terminal is a target terminal of the shared COT, the first terminal determines a transmission resource for performing SL transmission based on the shared COT indication information.

[0118] The expected destination Layer 2 address is associated with the broadcast service, and the broadcast service is a broadcast service that the first terminal is interested in receiving. The target terminal identifier indicated by the shared COT indication information may be the Layer 2 address of the target terminal or the application layer address of the target terminal. Being the same as the terminal identifier of the first terminal means that, if the target terminal identifier indicated by the shared COT indication information is a target terminal Layer 2 address, the target terminal Layer 2 address is the same as the Layer 2 address of the first terminal; or, if the target terminal identifier indicated by the shared COT indication information is an application layer address of the target terminal, the application layer address of the target terminal is the same as the application layer address of the first terminal. For example, the target terminal identifier indicated by the shared COT indication information may be realized in other forms and is not particularly limited in this embodiment.

[0119] Exemplarily, when a broadcast service is performed between the first terminal and the initiating terminal of the shared COT, and the destination address of a data packet (SL MAC PDU) containing the COT sharing information is a Layer 2 address associated with the broadcast service of interest to the first terminal device, and the target terminal identifier indicated by the shared COT indication information is the same as the terminal identifier of the first terminal, the first terminal determines that it is a responding terminal of the shared COT.

[0120] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0121] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of a target transmitting terminal, a number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of a logical channel that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information.

[0122] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), determine whether the first terminal is a target terminal of the shared COT; and in response to determining that the first terminal is the target terminal of the shared COT and being unable to determine the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of pending data of logical channels transmittable on a carrier and time domain information indicated by the COT sharing information, randomly select the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of pending data of logical channels transmittable on a carrier, where the transmission resource includes time domain resources and frequency domain resources, wherein the time domain resources indicated by the time domain information indicated by the COT sharing information and the time domain resources indicated by the transmission resource that cannot be determined from among the candidate resources provided by the physical layer are included in the time domain range indicated by the shared COT indication information. The reason why the transmission resource cannot be determined (selected) is because all resources within the time domain range indicated by the COT sharing information have been selected (or are in use).

[0123] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, determine whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection or resource reselection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, determine the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource.

[0124] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection or resource reselection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, the first terminal determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of a target transmitting terminal, a number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels transmittable on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information.

[0125] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), the method determines whether the first terminal is a target terminal of the shared COT; when the first terminal is determined to be a target terminal of the shared COT, resource selection or resource reselection is triggered by the first terminal; the first terminal is configured by an upper layer to perform full sensing or partial sensing; and when the transmission resource cannot be determined from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier and time domain information indicated by the COT sharing information, the method randomly selects the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier, wherein the transmission resource includes time domain resources and frequency domain resources.

[0126] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0127] As shown in FIG. 6, this embodiment provides a resource determination method, where the method is performed by a first terminal in sidelink (SL) communication, and includes the following step 61:

[0128] In step 61, determine the transmission resources from among candidate resources provided by the physical layer based on time domain information indicated by the shared COT indication information, where the transmission resources include time domain resources and frequency domain resources.

[0129] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to determining that the first terminal is a target terminal of a shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0130] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to the first terminal being determined to be a target terminal of a shared COT and resource selection or resource reselection being triggered by the first terminal, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0131] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0132] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to the first terminal being determined to be a target terminal of a shared COT and the first terminal being configured by a higher layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource.

[0133] For example, when the first terminal has its own sensing result and receives the shared COT indication information, the first terminal selects a resource from the intersection of time domain information indicated by the shared COT indication information and candidate resources provided by a physical layer. Note that the first terminal having its own sensing result refers to the first terminal being configured by an upper layer to perform full sensing or partial sensing.

[0134] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource.

[0135] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to determining that the first terminal is a target terminal of a shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of the target transmitting terminal, the number of selected frequency resources, and the remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, where the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in the time domain range indicated by the shared COT indication information.

[0136] In one embodiment, the method determines whether the first terminal is a target terminal of a shared COT, and in response to the first terminal being determined to be a target terminal of a shared COT, resource selection or resource reselection being triggered by the first terminal, and the first terminal being configured by an upper layer to perform full sensing or partial sensing, determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of the target transmitting terminal, the number of selected frequency resources, and the remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in the time domain range indicated by the shared COT indication information.

[0137] In addition, the target transmitting terminal of the transmission resource may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the initiating terminal of the shared COT or the Layer 2 address of another terminal). Exemplarily, the target transmitting terminal of the transmission resource may be limited to only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource may be only the Layer 2 address of the initiating terminal of the shared COT).

[0138] In one embodiment, the first terminal selects resources from the intersection of candidate resources provided by the physical layer and the time domain indicated by the shared COT. The selected resources must be within the activation time of the target transmitting terminal (if discontinuous reception DRX is configured) and are selected based on the number of selected frequency resources and the remaining PDB request for pending data of logical channels transmittable on the carrier. The target transmitting terminal of the transmission resource may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the initiating terminal of the shared COT or the Layer 2 address of another terminal). Exemplarily, the target transmitting terminal of the transmission resource may be limited to only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource may be only the Layer 2 address of the initiating terminal of the shared COT).

[0139] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared COT, the first terminal determines whether the first terminal is a target terminal of the shared COT, and in response to determining that the first terminal is a target terminal of the shared COT, determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of a target transmitting terminal, a number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of a logical channel that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information.

[0140] In one embodiment, the method determines whether a first terminal is a target terminal of a shared COT, and in response to determining that the first terminal is a target terminal of a shared COT, determines the transmission resources from among candidate resources provided by a physical layer based on at least one of an activation time of the target transmitting terminal, the number of selected frequency resources, and the remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels that can be transmitted on a carrier, and time domain information indicated by the shared COT indication information, where the transmission resources include time domain resources and frequency domain resources, and the time domain resources indicated by the transmission resources are included in the time domain range indicated by the shared COT indication information.

[0141] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), the first terminal determines whether the first terminal is a target terminal of the shared COT; in response to determining that the first terminal is a target terminal of the shared COT, triggering resource selection or resource reselection by the first terminal, and configuring the first terminal by an upper layer to perform full sensing or partial sensing, the first terminal determines the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of a target transmitting terminal, a number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels transmittable on a carrier, and time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource, and the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information.

[0142] In one embodiment, the first terminal selects a transmission resource from the intersection of the time domain information indicated by the shared COT indication information and the candidate resources provided by the physical layer, and then randomly selects a resource from the candidate resources provided by the physical layer.

[0143] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), determine whether the first terminal is a target terminal of the shared COT; and in response to determining that the first terminal is a target terminal of the shared COT and being unable to determine the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier and time domain information indicated by the COT sharing information, randomly select the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier, wherein the transmission resource includes time domain resources and frequency domain resources.

[0144] In one embodiment, in response to receiving the shared channel occupation time (COT) indication information transmitted from an initiating terminal of the shared channel occupation time (COT), the method determines whether the first terminal is a target terminal of the shared COT; when the first terminal is determined to be a target terminal of the shared COT, resource selection or resource reselection is triggered by the first terminal; the first terminal is configured by an upper layer to perform full sensing or partial sensing; and when the transmission resource cannot be determined from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier and time domain information indicated by the COT sharing information, the method randomly selects the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of data waiting to be transmitted of logical channels transmittable on a carrier, wherein the transmission resource includes time domain resources and frequency domain resources. In addition, the time domain resource indicated by the transmission resource that cannot be determined from the candidate resources provided by the time domain information physical layer indicated by the COT shared information is included in the time domain range indicated by the shared COT indication information. The reason why the transmission resource cannot be determined (selected) is because all resources within the time domain range indicated by the COT shared information are selected (or used).

[0145] In one embodiment, if there is no selectable resource at the intersection of the candidate resources provided by the physical layer and the time domain indicated by the shared COT based on the number of selected frequency resources and the remaining PDB of data waiting to be transmitted of the logical channels transmittable on the carrier, the first terminal randomly selects a resource from the candidate resources provided by the physical layer based on the number of selected frequency resources and the PDB request of the remaining PDB of data waiting to be transmitted of the logical channels transmittable on the carrier. The target transmitting terminal of the transmission resource may be the initiating terminal of the shared COT or another terminal (the destination address of the SL MAC PDU carried on the transmission resource may be the Layer 2 address of the initiating terminal of the shared COT or the Layer 2 address of another terminal). Optionally, the target transmitting terminal of the transmission resource may be limited to only the initiating terminal of the shared COT (the destination address of the SL MAC PDU carried on the transmission resource may be only the Layer 2 address of the initiating terminal of the shared COT).

[0146] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0147] As shown in FIG. 7, an embodiment of the present disclosure provides a resource determination device, wherein the device comprises: The communication system includes a determination module 71 configured to determine whether a first terminal is a target terminal of a shared channel occupation time (COT) in response to receiving shared COT indication information transmitted from an initiating terminal of the shared COT, and to determine a transmission resource for performing SL transmission based on the shared COT indication information in response to determining that the first terminal is a target terminal of the shared COT.

[0148] It will be understood by those skilled in the art that the methods provided in the embodiments of the present disclosure may be performed alone or together with some other methods in the embodiments of the present disclosure or some other methods in the related art.

[0149] An embodiment of the present disclosure provides a communication device, a processor; a memory for storing instructions executable by the processor; Here, the processor, when executing the executable instructions, is configured to implement a method according to any embodiment of the present disclosure.

[0150] Here, the processor may include various storage media, which are non-transitory computer storage media that can continue to store information stored therein even after the communication device loses power.

[0151] The processor can be connected to the memory via a bus or the like, and is used to read executable programs stored in the memory.

[0152] An embodiment of the present disclosure further provides a computer storage medium having a computer-executable program stored thereon, which, when executed by a processor, realizes a method according to any embodiment of the present disclosure.

[0153] Regarding the apparatus in the above-described embodiment, the specific manner in which each module executes the operation is described in detail in the embodiment relating to the method, but will not be described in detail here.

[0154] As shown in FIG. 8, one embodiment of the present disclosure provides a structure of a terminal.

[0155] Referring to FIG. 8, this embodiment provides a terminal 800, which may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0156] Referring to FIG. 8 , terminal 800 may include one or more components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0157] The processing component 802 typically controls the overall operation of the device 800, such as operations related to display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include at least one processor 820 to execute instructions to complete all or some of the steps of the above-described methods. The processing component 802 may also include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0158] The memory 804 is configured to store various types of data to support operation at the terminal 800. Examples of this data include instructions for any application programs or methods operated at the terminal 800, contact data, phone book data, messages, photos, videos, etc. The memory 804 may be implemented with any type of volatile or non-volatile storage device, or combinations thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0159] The power component 806 provides power to the various components of the terminal 800. The power component 806 may include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power for the terminal 800.

[0160] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel may include one or more touch sensors to detect touches, slides, and gestures on the touch panel. The touch sensors may detect not only the boundaries of touch or slide operations, but also the wake-up time and pressure associated with the touch or slide operations. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in an operation mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera may have a fixed optical lens system or a fixed focal length and optical zoom function.

[0161] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC) configured to receive external audio signals when the terminal 800 is in an operation mode such as a call mode, a recording mode, or a voice recognition mode. The received audio signals can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker for outputting audio signals.

[0162] The I / O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons include, but are not limited to, a home page button, volume buttons, a start button, and a lock button.

[0163] The sensor component 814 includes one or more sensors to provide various status assessments for the terminal 800. For example, the sensor component 814 can detect the on / off state of the terminal 800, the relative positioning of components, such as the display and keypad of the terminal 800, and can further detect changes in the position of the terminal 800 or a component of the terminal 800, whether or not there is user contact with the terminal 800, the orientation or acceleration / deceleration of the terminal 800, and changes in the temperature of the terminal 800. The sensor component 814 may also include a proximity sensor configured to detect whether or not there is an object nearby in the absence of any physical contact. The sensor component 814 may also include an optical sensor for use in imaging applications, such as a CMOS or CCD image sensor. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0164] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0165] In an exemplary embodiment, terminal 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements to perform the above methods.

[0166] In an exemplary embodiment, a non-transitory computer-readable storage medium containing instructions is further provided, such as a memory 804 containing instructions, which may be executed by a processor 820 of the terminal 800 to complete the method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, an optical data storage device, and the like.

[0167] As shown in FIG. 9, an embodiment of the present disclosure illustrates the structure of a base station. For example, base station 900 may be provided as a network-side device. Referring to FIG. 9, base station 900 includes a processing component 922 including one or more processors and a memory resource represented by memory 932 for storing instructions executable by processing component 922, such as an application program. The application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, processing component 922 is configured to execute instructions to perform any of the methods described above that may be applied to the base station.

[0168] The base station 900 may further include a power component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0169] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the invention disclosed herein. This disclosure is intended to cover any modifications, uses, or adaptations of the present invention, which modifications, uses, or adaptations follow the general principles of the present invention and include common general knowledge or customary technical means in the art that are not disclosed in this disclosure. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0170] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and various modifications and variations can be made without departing from the scope of the present invention, which is limited only by the appended claims.

Claims

1. 1. A resource determination method performed by a first terminal in side link (SL) communication, comprising: determining whether a first terminal is a target terminal of a shared channel occupation time (COT) in response to receiving shared COT indication information transmitted from an initiating terminal of the shared COT; In response to determining that the first terminal is a target terminal of the shared COT, determining a transmission resource for performing SL transmission based on the shared COT indication information. Resource determination method.

2. determining a transmission resource for performing SL transmission based on the shared COT indication information, determining a transmission resource for performing SL transmission based on the shared COT indication information in response to resource selection or resource reselection being triggered by the first terminal; The resource determination method according to claim 1 .

3. The shared COT instruction information is a starting symbol, a starting slot, a starting subframe, or a starting frame of the shared COT; an end symbol, end slot, end subframe, or end frame of the shared COT; The duration of the shared COT; and a starting symbol, starting slot, starting subframe, or starting frame of the remaining COT of the shared COT; an end symbol, an end slot, an end subframe, or an end frame of the remaining COT of the shared COT; The remaining time length of the shared COT; Identification information of the initiating terminal of the shared COT; Identification information of the target terminal of the shared COT; and Channel Access Priority Class (CAPC) information of the shared COT. The resource determination method according to claim 1 .

4. The step of determining whether the first terminal is a target terminal of the shared COT includes: determining whether the first terminal is a target terminal of the shared COT based on a destination address and a service type of a data packet including the shared COT indication information, wherein the service type is a service type indicated by sidelink control information (SCI) including the shared COT indication information; The resource determination method according to claim 1 .

5. The step of determining whether the first terminal is a target terminal of the shared COT based on a destination address and a service type of a data packet including the shared COT indication information includes: determining that the first terminal is a target terminal of the shared COT in response to the service type being a unicast service and a destination address indicated by sidelink control information (SCI) including the shared COT indication information being a Layer 2 address of the first terminal; Or, determining that the first terminal is a target terminal of the shared COT in response to the service type being a multicast service, the destination address indicated by the SCI containing the shared COT indication information being a Layer 2 address associated with the multicast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal; Or, determining that the first terminal is a target terminal of the shared COT in response to the service type being a broadcast service, the destination address indicated by the SCI including the shared COT indication information being a Layer 2 address associated with the broadcast service, and the target terminal identifier indicated by the shared COT indication information being the same as the terminal identifier of the first terminal; The resource determination method according to claim 4 .

6. determining a transmission resource for performing SL transmission based on the shared COT indication information, determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, wherein the transmission resource includes a time domain resource and a frequency domain resource; The resource determination method according to claim 1 .

7. determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, In response to the first terminal being configured by an upper layer to perform full sensing or partial sensing, determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information. The resource determination method according to claim 6 .

8. determining the transmission resource from among candidate resources provided by a physical layer based on time domain information indicated by the shared COT indication information, determining the transmission resource from among candidate resources provided by a physical layer based on at least one of an activation time of the target transmitting terminal, the number of selected frequency resources, and a remaining packet delay budget (PDB) of data waiting to be transmitted of logical channels transmittable on the carrier, and time domain information indicated by the shared COT indication information, wherein the time domain resource indicated by the transmission resource is included in a time domain range indicated by the shared COT indication information; The resource determination method according to claim 6 .

9. The method comprises: In response to the transmission resource not being determined from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of pending data of logical channels transmittable on the carrier and the time domain information indicated by the COT shared information, randomly selecting the transmission resource from among candidate resources provided by a physical layer based on the number of selected frequency resources and / or the PDB of pending data of logical channels transmittable on the carrier. The resource determination method according to claim 6 .

10. The target sending terminal is the initiating terminal of the shared COT; The resource determination method according to claim 8 or 9.

11. A resource determination apparatus, comprising: a determination module; The determination module is configured to determine whether a first terminal is a target terminal or a responding terminal of a shared channel occupation time (COT) in response to receiving shared COT indication information transmitted from an initiating terminal of the shared COT, and to determine a transmission resource for performing SL transmission based on the shared COT indication information in response to determining that the first terminal is a target terminal or a responding terminal of the shared COT. Resource determiner.

12. 1. A communication device, comprising: The antenna and Memory and a processor coupled to the antenna and a memory, The processor is configured to execute computer-executable instructions stored in the memory to control transmission and reception by the antenna and to implement the method according to any one of claims 1 to 10. Communication devices.

13. A computer storage medium having computer-executable instructions stored thereon, When the computer-executable instructions are executed by a processor, the method according to any one of claims 1 to 10 is achieved. Computer storage media.

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