Sidelink transmission method, transmission device, and communication equipment

Abstract

The present application discloses a sidelink transmission method, a transmission device, and communication equipment, and belongs to the field of wireless communication technology. The sidelink transmission method comprises the step of determining a transmission method based on whether the spacing between two transmission resources or two groups of transmission resources satisfies a target spacing requirement, wherein the transmission method includes a HARQ feedback method, and wherein the transmission resources or groups of transmission resources are transmission resources or groups of transmission resources provided by sidelink resource control signaling.

Description

Technology Field

[0001] This application claims priority to the Chinese patent application No. 202010635601.5 filed in China on July 3, 2020, the entirety of which is incorporated herein by reference.

[0002] This application relates to the field of wireless communication technology, and in particular to a sidelink transmission method, a transmission device, and communication equipment. Background Technology

[0003] In the case of sidelink (SL, also called a lateral link) transport block (TB) transmission based on Hybrid Automatic Repeat reQuest (HARQ) feedback, the transmitting end (TX UE) must decide whether to perform the next PSSCH retransmission based on the feedback result transmitted by the previous Physical Sidelink Share Channel (PSSCH). However, since the current control node (e.g., base station) does not know the actual transmission status and feedback status in the SL, or whether transmission or retransmission based on HARQ feedback is required, the resources allocated by this cannot guarantee that the resources for the next PSSCH transmission will always appear after the TX UE has demodulated the feedback information. Consequently, the user cannot determine whether to retransmit based on the actual HARQ status, which reduces reliability, and a mixed transmission of HARQ feedback-based transmission and blind retransmission may occur, increasing the processing complexity for the receiving user. The problem to be solved

[0004] The objective of the embodiments of the present application is to provide a sidelink transmission method, a transmission device, and a communication equipment that can solve the problem of wasting resources because, during sidelink transmission, the resources for the next PSSCH transmission cannot be guaranteed to appear after the TX UE demodulates the feedback information. means of solving the problem

[0005] To solve the above technical problem, the present application is implemented as follows.

[0006] In a first aspect, an embodiment of the present application provides a side-link transmission method applied to communication equipment, wherein the method comprises:

[0007] The method includes a step of determining a transmission method based on whether the interval between two transmission resources or two groups of transmission resources satisfies target interval requirements, wherein the transmission method includes a HARQ feedback method.

[0008] The above transmission resource or transmission resource group is a transmission resource or transmission resource group provided by sidelink resource control signaling.

[0009] In a second aspect, an embodiment of the present application provides a side-link transmission device,

[0010] It includes a first determination module for determining a transmission method based on whether the interval between two transmission resources or two groups of transmission resources satisfies target interval requirements, and the transmission method includes a HARQ feedback method.

[0011] The above transmission resource or transmission resource group is a transmission resource or transmission resource group provided by sidelink resource control signaling.

[0012] In a third aspect, an embodiment of the present application provides communication equipment, wherein the terminal comprises a processor, a memory, and a program or instruction stored in the memory and executable by the processor, and when the program or instruction is executed by the processor, a step of the method according to the first aspect is implemented.

[0013] In a fourth aspect, an embodiment of the present application provides a readable storage medium, wherein a program or instruction is stored in the readable storage medium, and the step of the method according to the first aspect is implemented when the program or instruction is executed by the processor.

[0014] In a fifth aspect, an embodiment of the present application provides a chip, wherein the chip comprises a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or command of a network-side device, thereby implementing a method according to a first aspect. Effects of the invention

[0015] In an embodiment of the present application, when a control node provides a plurality of transmission resources or groups of transmission resources, the transmission method can be dynamically determined based on whether the spacing between the transmission resources or groups of transmission resources provided by the control node satisfies the target spacing requirement. For example, when transmitting or retransmitting based on HARQ feedback, the waste of transmission resources is prevented and low latency, reliability, and resource utilization are ensured by determining whether to enable HARQ feedback (HARQ feedback method) to adapt to the characteristics of the packet to ensure that the next transmission resource appears after the TX UE demodulates the feedback information. Brief explanation of the drawing

[0016] FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. Figures 2 and 3 are schematic diagrams of a and b for determining the HARQ RTT time. Figures 4 and 5 are schematic diagrams of a situation where two adjacent transmission resources provided by a control node do not satisfy the HARQ RTT time. FIG. 6 is a flowchart of a side link transmission method according to an embodiment of the present application. FIG. 7 is a schematic diagram of the structure of a side link transmission device according to an embodiment of the present application. FIG. 8 is a schematic diagram of the structure of a communication device according to an embodiment of the present application. FIG. 9 is a schematic diagram of the structure of a terminal according to an embodiment of the present application. FIG. 10 is a schematic diagram of the structure of network-side equipment according to an embodiment of the present application. Specific details for implementing the invention

[0017] Hereinafter, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the drawings attached to the embodiments of the present application. It is evident that the embodiments described herein are merely some embodiments, not all embodiments of the present application. All other embodiments obtained by a person skilled in the art without creative effort based on the embodiments of the present application are all within the scope of protection of the present application.

[0018] In the specification and claims of this application, terms such as “first,” “second,” etc., are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this manner may be exchanged with one another where appropriate, so that embodiments of this application may be implemented in a different order than those shown or described herein, and that “first” and “second” are generally used to distinguish objects of the same type and do not limit the number of objects. For example, the first object may be one or many. Additionally, in the specification and claims, “and / or” indicates at least one of the connected objects, and the symbol “ / ” generally indicates that the preceding and succeeding associated objects are in an “or” relationship.

[0019] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems but can also be applied to various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. In the embodiments of this application, terms such as “system” and “network” are often used interchangeably, and the technology described in the specification can be applied to other systems and wireless technologies as well as the systems and wireless technologies mentioned above. However, the New Radio (NR) system has been described below for exemplary purposes, and although the term NR has been used in most of the following descriptions, this technology is applicable to applications other than NR system applications, such as 6th generation (6 th It can also be applied to communication systems (Generation, 6G).

[0020] FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application may be applied. The wireless communication system includes a terminal (11) and network-side equipment (12). Here, the terminal (11) may be referred to as terminal equipment or User Equipment (UE), and the terminal (11) may be terminal-side equipment such as a mobile phone, Tablet Personal Computer (Tablet PC), Laptop Computer (also called a notebook), Personal Digital Assistant (PDA), Pocket PC, Netbook, Ultra-mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device, Vehicle-mounted Terminal (VUE), Pedestrian Terminal (PUE), etc., and the Wearable Device includes a smart band, earphones, smart glasses, etc. It should be noted that the embodiment of the present application is not limited to a specific type of terminal (11). The network-side equipment (12) may be a base station or a core network, wherein the base station may be called a node B, an evolved node B, an access point, a base transceiver station (BTS), a wireless base station, a wireless transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (TRP), or any other appropriate term in the field, and the base station is not limited to a specific technical term as long as the same technical effect can be achieved.It should be noted that in the embodiments of this application, only base stations of NR systems are described as examples, but the specific type of base station is not limited.

[0021] The relevant communication terms mentioned in the embodiments of the present application will be explained below.

[0022] (1) Sidelink HARQ feedback

[0023] Sidelink HARQ has been introduced in the NR Vehicle Internet System (V2X) to improve the reliability and effectiveness of sidelink transmission. In the sidelink, the transmitting terminal (TX UE) transmits data / TB to the receiving terminal (RX UE), and the receiving terminal determines whether the data reception was successful. If reception is successful, the receiving terminal feeds back an ACK to the transmitting node, and if not, feeds back a NACK.

[0024] Sidelink supports unicast, groupcast, and broadcast transmissions, and unicast and groupcast transmissions must support Sidelink HARQ feedback. For unicast transmissions, the RX UE provides feedback on ACK / NACK from its Physical Sidelink Feedback Channel (PSFCH) resource. For groupcast transmissions, there are at least two types of feedback formats: (1) The RX UE shares the PSFCH resource and provides feedback only on NACK, and the RX UE provides no feedback when TB demodulation is successful. (2) The RX UE occupies different PSFCH resources and provides feedback on ACK / NACK from each resource.

[0025] The above TB transmission occurs on a physical sidelink shared channel (PSSCH) resource, and ACK / NACK transmission occurs on the corresponding PSFCH resource (corresponding PSFCH).

[0026] (2) Sidelink Physical Sidelink Control Channel (PSCCH) / PSSCH Retransmission Format

[0027] Sidelink supports two forms of PSSCH retransmission: one is HARQ feedback-based retransmission, and the other is blind retransmission. Here, if the TX UE adopts HARQ feedback-based retransmission, the RX UE must provide HARQ feedback for the PSSCH transmitted by the TX UE, and the TX UE decides whether to retransmit the PSSCH based on the HARQ feedback; if the TX UE adopts the blind retransmission method, the TX UE performs the PSSCH transmission directly from the retransmission resource, i.e., does not rely on HARQ feedback.

[0028] Currently, for multiple transmission resources within a single TB, performing blind retransmission and transmission or retransmission based on HARQ feedback on different transmission resources is not supported. For example, if a user acquires two transmission resources and intends to use them for retransmission to a specific TB, both of these transmission resources are used for blind retransmission or both are used for transmission or retransmission based on HARQ feedback. For transmission to a TB, if the HARQ feedback status corresponding to the initial transmission or a specific retransmission for the TB is ACK, or if the user determines that this transmission is successful, the user releases other transmission resources reserved for this TB.

[0029] (3) Resource selection for Sidelink

[0030] There are two modes for the resource allocation method of Sidelink, including at least mode 1 and mode 2. In the case of mode 1, the control node allocates transmission resources to the TX UE, and in the case of mode 2, the TXUE autonomously selects transmission resources.

[0031] At least for mode 2, in order to ensure that the resources for PSSCH retransmission appear after the TX UE demodulates the feedback information, it is specified that the time interval between any two selected PSSCH transmission resources must be greater than the HARQ round-trip time (RTT).

[0032] The HARQ RTT time Z=a+b, where,

[0033] a is the time interval between the end of the last symbol of the first PSSCH transmission and the start of the first symbol of the corresponding PSFCH reception, and a is determined by the resource pool configuration and the upper layer parameters of MinTimeGapPSFCH and periodPSFCHresource;

[0034] b is the time required for PSFCH reception and retransmission preparation processing, including the multiplexing of essential physical channels and any TX-RX / RX-TX switching time, and is determined by the UE.

[0035] Referring to FIGS. 2 and FIGS. 3, FIGS. 2 and FIGS. 3 are schematic diagrams of a and b for determining the HARQ RTT time. In FIGS. 2, since the value of b is small, the PSFCH reception and retransmission preparation process can be completed within the slot where the PSFCH is located. In FIGS. 3, since the value of b is large, the PSFCH reception and retransmission preparation process requires a cross slot.

[0036] (4) Reservation of Sidelink resources

[0037] The TX UE performs resource reservations for the resources it allocates, and reservations are classified into periodic and non-periodic reservations. The reserved resources are used for future PSSCH and / or PSCCH transmissions. The reservation period can be specified in the Sidelink Control Information (SCI).

[0038] When a user acquires resources from a control node (e.g., when the control node allocates, directs, or recommends resources to the user, typically in mode 1), as illustrated in FIGS. 4 and 5, two adjacent transmission resources (e.g., PSSCH and / or PSCCH resources) provided by the control node may not satisfy the HARQ RTT time. In the situation illustrated in FIG. 4, two adjacent transmission resources (corresponding to the same TB) correspond to the same PSFCH occasion. In the situation illustrated in FIG. 5, two adjacent transmission resources (corresponding to the same TB) correspond to different PSFCH occasions, but the time required for the TX UE to process the previous transmission resource and / or the corresponding PSFCH is long, so it cannot prepare for PSSCH retransmission when the next PSSCH transmission resource arrives. FIG. 4 represents a typical situation, but the possibility of the situation illustrated in FIG. 5 occurring is not excluded.

[0039] In the above case, it is not clear how the user performs the transmission.

[0040] The side-link transmission method, transmission device, and communication equipment according to the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the attached drawings.

[0041] First, it should be noted that the communication equipment mentioned in the embodiments of the present application may be a control node or a sidelink terminal in a sidelink system. The control node may be network-side equipment (e.g., a base station), a roadside unit (RSU), a head user terminal, a user terminal having a scheduling function, a user terminal capable of recommending or directing transmission resources (e.g., a receiving user), etc.

[0042] Referring to FIG. 6, an embodiment of the present application provides a side-link transmission method applied to communication equipment and includes the following steps.

[0043] Step 61: Determine a transmission method based on whether the spacing between two transmission resources or two transmission resource groups (bundles) satisfies the target spacing requirement, wherein the transmission method includes a HARQ feedback method, and the transmission resources or transmission resource groups are transmission resources or transmission resource groups provided by sidelink resource control signaling.

[0044] The transmission mentioned in the embodiments of the present application includes at least one of receiving and transmitting.

[0045] In an embodiment of the present application, when a control node provides a plurality of transmission resources or groups of transmission resources, the transmission method can be dynamically determined based on whether the spacing between the transmission resources or groups of transmission resources provided by the control node satisfies the target spacing requirement. For example, when transmitting or retransmitting based on HARQ feedback, the waste of transmission resources is prevented and low latency, reliability, and resource utilization are ensured by determining whether to enable HARQ feedback (HARQ feedback method) to adapt to the characteristics of the packet to ensure that the next transmission resource appears after the TX UE demodulates the feedback information.

[0046] The concept of two transmission resources or two groups of transmission resources will be explained below.

[0047] In an embodiment of the present application, optionally, the two transmission resources are two transmission resources among the target transmission resources; and the two transmission resource group is a group of two transmission resources among the target transmission resources.

[0048] Optionally, the target transmission resource is any transmission resource provided by the sidelink resource control signaling.

[0049] In an embodiment of the present application, more optionally, the two transmission resources are two adjacent transmission resources among the target transmission resources, or any two transmission resources among the target transmission resources, or two preset transmission resources among the target transmission resources. The two preset transmission resources may be two transmission resources corresponding to the first two transmission resources, the last two transmission resources, or a preset number or position among the target transmission resources. The two transmission resource groups are two adjacent transmission resource groups among the target transmission resources, or any two transmission resource groups among the target transmission resources, or two preset transmission resource groups among the target transmission resources. The two preset transmission resource groups may be two transmission resource groups corresponding to the first two transmission resource groups, the last two transmission resource groups, or a preset number or position among the target transmission resources.

[0050] Here, whether the spacing between two adjacent transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement can be understood as the spacing between all two adjacent transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement, or the spacing between at least two adjacent transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement.

[0051] The fact that the spacing between any two transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement can be understood as the fact that the spacing between all two transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement, or the fact that the spacing between at least two transmission resources or groups of transmission resources among the target transmission resources satisfies or does not satisfy the target spacing requirement.

[0052] In an embodiment of the present application, the target transmission resource includes one or a plurality of transmission resources.

[0053] In an embodiment of the present application, optionally, the target transmission resource is at least one of the following.

[0054] 1) Transmission resources for a single transmission block (TB) or MAC PDU;

[0055] 11) For example, a transmission resource for the same TB or MAC PDU indicated by one or more SL Downlink Control Information (DCI);

[0056] 12) For example, a transmission resource for the same TB or MAC PDU under one or more SL DCIs and / or sidelink configured grants (SL CG).

[0057] SL DCI is a DCI that schedules, enables, or disables SL resources, for example, DCI 3-0.

[0058] In an embodiment of the present application, a transmission resource for a transmission block (TB) or MAC PDU may be a resource that can be used to transmit this TB or MAC PDU (meaning that some of it may not be used for this TB or MAC PDU), or a resource that is actually used to transmit this TB or MAC PDU.

[0059] The sidelink configured acknowledgment may be at least one of SL CG type1, SL CG type2, and SL Semi-Persistent Scheduling (SPS).

[0060] 2) Transmission resources indicated in dynamic control signaling;

[0061] 21) For example, a transmission resource indicated in a single SL DCI;

[0062] 22) For example, dynamic resources scheduled, directed, or recommended by a control node or other terminal.

[0063] 3) Transmission resources indicated in semi-static control signaling.

[0064] 31) For example, transmission resources within each cycle of the sidelink configured grant;

[0065] 32) For example, a semi-static resource scheduled, directed, or recommended by a control node or other terminal.

[0066] Dynamic resources can also be understood as non-periodic resources.

[0067] The above dynamic control signaling may be dynamic sidelink control signaling. The semi-static control signaling may be semi-static sidelink control signaling.

[0068] In an embodiment of the present application, optionally, the target transmission resource is provided via sidelink (SL) resource control signaling, and the sidelink resource control signaling is,

[0069] Sidelink downlink control information (Downlink Control Information, DCI), abbreviated as SL DCI - SL DCI is a DCI that schedules, enables, or disables SL resources, for example, a scrambled DCI of SL-RNTI or SL-CS-RNTI, for example, DCI format 3-0 - ;

[0070] Sidelink configured approval (SL CG);

[0071] MAC control element (control element, CE);

[0072] Radio Resource Control (RRC) signaling;

[0073] It includes at least one of a predetermined sidelink signal or channel. For example, SCI, SCI format, sidelink feedback control channel (SFCI), PSFCH, PSSCH, PSCCH, physical sidelink discovery channel (PSDCH), or other sidelink signal or channel.

[0074] Optionally, if the control node is a user, it may direct, schedule, or recommend resources to other users using MAC CE or RRC or predetermined sidelink signals or channels.

[0075] In an embodiment of the present application, optionally, prior to the step of determining a transmission method based on whether the interval between two transmission resources or two groups of transmission resources satisfies the target interval requirement, the step of obtaining a target transmission resource from a control node is further included.

[0076] The concept of transmission resource groups will be explained below.

[0077] In an embodiment of the present application, optionally, a transmission resource provided by one SL resource control signaling (e.g., one SL DCI or one SL CG) is considered as one transmission resource group (bundle), each transmission resource within the transmission resource group is considered as one SL grant, and optionally, each transmission within the transmission resource group is independent.

[0078] In an embodiment of the present application, optionally, the spacing between the two transmission resource groups satisfies the target spacing requirement, comprising satisfying the target spacing requirement between the I-th transmission resource of one of the two transmission resource groups and the J-th transmission resource of the other transmission resource group. I and J are positive integers.

[0079] In an embodiment of the present application, optionally, the target interval requirement is satisfied between the first transmission resource of one of the two transmission resource groups and the first transmission resource of the other transmission resource group. That is, I and J are both 1.

[0080] In an embodiment of the present application, optionally, the number of transmission resources in one of the two transmission resource groups is I and the number of transmission resources in the other transmission resource group is J, and the target interval requirement is satisfied between the last (i.e., the I-th) transmission resource of one of the two transmission resource groups and the last (i.e., the J-th) transmission resource of the other transmission resource group.

[0081] In an embodiment of the present application, optionally, the target interval requirement is satisfied between the first (i.e., I=1) transmission resource of one of the two transmission resource groups (assumed to be transmission resource group (1)) and the last (i.e., J-th) transmission resource of the other transmission resource group (assumed to be transmission resource group (2)), where the number of transmission resources in the other transmission resource group is J. Optionally, the first transmission resource of transmission resource group (1) is after the last transmission resource of transmission resource group (2).

[0082] In an embodiment of the present application, optionally, I=J.

[0083] In an embodiment of the present application, optionally, the two transmission resource groups are transmitted for the same TB.

[0084] In an embodiment of the present application, optionally, the two transmission resource groups are transmission resource groups that follow the same sidelink configured acknowledgment and have the same HARQ process ID; or the two transmission resource groups are transmission resource groups of two adjacent cycles that follow the same sidelink configured acknowledgment.

[0085] In the embodiments of the present application, the advantage of setting up a transmission resource group is that there is no need to consider whether target spacing requirements must be met between multiple transmission resources within one SL DCI or one SL CG, or whether there is a problem of mixed transmission or retransmission based on blind retransmission and HARQ feedback.

[0086] In an embodiment of the present application, optionally, satisfying the target interval requirement is,

[0087] Greater than or equal to a+b;

[0088] Greater than or equal to a+b+c;

[0089] Greater than or equal to a+b+c+d; including one of them,

[0090] Here, a is the time between the first data transmission of the two transmission resources or two transmission resource groups and the corresponding PSFCH;

[0091] b is the time required for PSFCH reception and retransmission preparation processing;

[0092] c is the time required for PUCCH or PUSCH transmission processing;

[0093] d is the time required for PDCCH processing.

[0094] Here, a+b is the HARQ RTT time explained in the preceding section.

[0095] Optionally, a is a minimum time interval requirement between the end of the last symbol of the first data transmission of the two transmission resources or groups of transmission resources and the start of the first symbol of the corresponding PSFCH reception.

[0096] Optionally, b is the minimum time interval requirement for PSFCH reception and retransmission preparation processing.

[0097] Optionally, c is the minimum time interval requirement for PUCCH or PUSCH transmission processing.

[0098] Optionally, d is a minimum time interval requirement required for PDCCH processing, including a minimum time interval requirement for PDCCH decoding and / or a minimum time interval requirement for PDCCH data scheduling.

[0099] Optionally, the above minimum time interval requirement can be understood as a processing time requirement.

[0100] Below, we will describe a specific method for determining the transmission method based on whether the spacing between two transmission resources or two groups of transmission resources meets the target spacing requirements.

[0101] (1) First, let's explain how to determine the transmission method when the spacing between two transmission resources or two groups of transmission resources does not meet the target spacing requirements.

[0102] The fact that the spacing between two transmission resources or two groups of transmission resources does not meet the target spacing requirement can also be interpreted as the spacing between two transmission resources or two groups of transmission resources among the target transmission resources not meeting the target spacing requirement, or the spacing between two adjacent transmission resources or two groups of adjacent transmission resources among the target transmission resources not meeting the target spacing requirement, or the spacing between any two transmission resources or any two groups of transmission resources among the target transmission resources not meeting the target spacing requirement, or the spacing between at least some of the transmission resources among the target transmission resources not meeting the target spacing requirement, or the spacing between two preset transmission resources or two preset groups of transmission resources among the target transmission resources not meeting the target spacing requirement.

[0103] Here, the fact that the spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement may also be interpreted as the fact that the target spacing requirement is not satisfied between at least some of the target transmission resources selected for one TB or MAC PDU. For example, if transmission or retransmission based on HARQ feedback must be performed for one TB or MAC protocol data unit (PDU), the target spacing requirement is not satisfied between at least some of the target transmission resources selected for this TB or MAC PDU.

[0104] In an embodiment of the present application, optionally, the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement is,

[0105] If the spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement, the method includes the step of determining at least one of the following transmission methods.

[0106] a) The HARQ enable / disable instruction information for each transmission resource indicates disablement.

[0107] In other words, the determined HARQ feedback method is that the HARQ enable / disable instruction information for each transmission resource directs to disable.

[0108] Each of the above transmission resources may be each transmission resource among the target transmission resources, and may mean each transmission resource among the two transmission resources or the two transmission resource groups.

[0109] Optionally, the HARQ enable / disable instruction information is HARQ enable / disable instruction information within the sidelink control signaling (e.g., SCI).

[0110] Optionally, the HARQ enable / disable instruction information of each transmission resource indicating disablement may be the HARQ enable / disable instruction information of each transmission resource indicating a value corresponding to disablement.

[0111] b) Map transmissions or retransmissions that are not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0112] Mapping a transmission or retransmission that is not based on HARQ feedback can also be interpreted as not transmitting a transmission or retransmission that is based on HARQ feedback.

[0113] Mapping a transmission can be interpreted as mapping a logical channel or mapping data of a logical channel.

[0114] Optionally, mapping transmissions or retransmissions that are not based on HARQ feedback means mapping transmissions on logical channels that do not require HARQ feedback.

[0115] Optionally, map transmissions or retransmissions that are not based on HARQ feedback in the two transmission resources or two groups of transmission resources.

[0116] More optionally, map transmissions or retransmissions that are not based on HARQ feedback at each transmission resource of the target transmission resource.

[0117] c) When transmitting, at least some of the transmission resources among the two transmission resources or two groups of transmission resources are ignored.

[0118] d) When transmitting or retransmitting based on HARQ feedback, at least some of the two transmission resources or groups of two transmission resources are ignored.

[0119] Ignoring at least some of the two transmission resources or two groups of transmission resources means, that is, not mapping transmission or retransmission based on HARQ feedback in at least some of the two transmission resources or two groups of transmission resources. Optionally, all transmission resources of the two transmission resources or two groups of transmission resources are ignored.

[0120] For example, a single SL DCI provides three transmission resources represented as resources (1), (2), and (3) in chronological order, wherein the interval between resource (1) and resource (2) satisfies the target interval requirement, at which point transmission or retransmission based on HARQ feedback is performed at resource (1) and resource (2) can be ignored. If the target interval requirement between resource (1) and resource (3) is satisfied, retransmission based on HARQ feedback can be performed at resource (3). The method for determining the resources to be ignored can be implemented by the user and can be determined according to specific rules. For example, it can be decided to ignore the resource that is later in time among the two transmission resources or the group of two transmission resources. Specifically, the resource with a later start time or end time can be ignored.

[0121] In some embodiments of the present application, optionally, the communication equipment is a control node, and the step of determining a transmission method based on whether the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement includes the step of determining at least one of the following transmission methods if the spacing between the two transmission resources or two groups of transmission resources does not satisfy the target spacing requirement.

[0122] a) Does not provide feedback resources.

[0123] b) The terminal considers or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback in at least some of the two transmission resources or two transmission resource groups (e.g., the terminal determines or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback in at least some of the two transmission resources or two transmission resource groups).

[0124] For example, through SL resource control signaling, the terminal may be instructed to map (or transmit) a transmission or retransmission to a MAC PDU or TB that is not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0125] Mapping a transmission for a MAC PDU that is not based on HARQ feedback can also be interpreted as not transmitting a transmission for a MAC PDU that is based on HARQ feedback.

[0126] Optionally, the terminal considers or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback in the two transmission resources or two transmission resource groups (e.g., the terminal determines or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback in the two transmission resources or two transmission resource groups).

[0127] More optionally, the terminal considers or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback at each transmission resource of the target transmission resource (e.g., the terminal determines or directs that it maps (or transmits) a transmission or retransmission for a MAC PDU or TB that is not based on HARQ feedback at each transmission resource of the target transmission resource).

[0128] c) The terminal considers or directs that at least some of the two transmission resources or two transmission resource groups ignore the transmission resources when transmitting (e.g., the terminal determines or directs that at least some of the two transmission resources or two transmission resource groups ignore the transmission resources when transmitting).

[0129] d) The terminal considers or directs that at least some of the two transmission resources or two transmission resource groups ignore when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback (e.g., the terminal determines or directs that at least some of the two transmission resources or two transmission resource groups ignore when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback).

[0130] Here, ignoring at least some of the two transmission resources or groups of two transmission resources means, that is, not mapping transmission or retransmission for MAC PDU or TB based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0131] In some embodiments of the present application, optionally, the communication equipment is a terminal, and the step of determining a transmission method based on whether the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement includes the step of determining at least one of the following transmission methods when the spacing between the two transmission resources or two groups of transmission resources does not satisfy the target spacing requirement.

[0132] a) The control node is considered not to provide a feedback resource (e.g., the control node determines not to provide a feedback resource).

[0133] Considering that a control node does not provide a feedback resource can also be interpreted as expecting or assuming that the control node does not provide a feedback resource (for example, determining that a control node does not provide a feedback resource can also be interpreted as expecting or assuming that the control node does not provide a feedback resource).

[0134] b) Map transmissions for MAC PDUs that are not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0135] Mapping a transmission for a MAC PDU that is not based on HARQ feedback can also be interpreted as not transmitting a transmission for a MAC PDU that is based on HARQ feedback.

[0136] c) When transmitting, at least some of the transmission resources among the two transmission resources or two groups of transmission resources are ignored.

[0137] d) When transmitting or retransmitting a MAC PDU or TB based on HARQ feedback, at least some of the transmission resources among the two transmission resources or two groups of transmission resources are ignored.

[0138] Here, ignoring at least some of the two transmission resources or groups of two transmission resources means, that is, not mapping transmission or retransmission for MAC PDU or TB based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0139] Here, in the above embodiment, the feedback resource is,

[0140] Uplink feedback resources (e.g., PUCCH and / or PUSCH);

[0141] or,

[0142] Uplink feedback resources and sidelink feedback resources (e.g., PSFCH);

[0143] or,

[0144] Includes sidelink feedback resources.

[0145] In an embodiment of the present application, optionally, the control node may indicate through sidelink resource control signaling that there is no feedback resource or that the feedback resource is not configured.

[0146] (2) Next, we will explain how to determine the transmission method when the spacing between two transmission resources or two groups of transmission resources meets the target spacing requirements.

[0147] In an embodiment of the present application, optionally, the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement is,

[0148] If the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement, the method includes the step of determining at least one of the following transmission methods.

[0149] a) The HARQ enable / disable instruction information for each transmission resource indicates either enable all or disable all.

[0150] In other words, the determined HARQ feedback method is that the HARQ enable / disable instruction information for each transmission resource either indicates that all are enabled or all are disabled.

[0151] Each transmission resource may mean each transmission resource among the target transmission resources, or each transmission resource among the two transmission resources or two groups of transmission resources.

[0152] Optionally, the HARQ enable / disable instruction information is HARQ enable / disable instruction information within the sidelink control signaling (e.g., SCI).

[0153] Optionally, if the HARQ enable / disable instruction information for each transmission resource all indicates enable, it may be that the HARQ enable / disable instruction information for each transmission resource all indicates a value corresponding to enable.

[0154] If the HARQ enable / disable instruction information for each transmission resource all indicates disable, it may mean that the HARQ enable / disable instruction information for each transmission resource all indicates a value corresponding to disable.

[0155] b) Map (or transmit) a transmission or retransmission based on HARQ feedback at each transmission resource, or map a transmission or retransmission not based on HARQ feedback at each transmission resource.

[0156] Transmission or retransmission based on HARQ feedback may be transmission or retransmission of data on a logical channel based on HARQ feedback, or transmission or retransmission of a MAC PDU or TB based on HARQ feedback.

[0157] Optionally, the spacing between the two transmission resources or groups of two transmission resources satisfying the target spacing requirement may also be interpreted as the spacing between two transmission resources or groups of two transmission resources among the target transmission resources satisfying the target spacing requirement, or the spacing between two adjacent transmission resources or groups of two adjacent transmission resources among the target transmission resources satisfying the target spacing requirement, or the spacing between all transmission resources or groups of two transmission resources among the target transmission resources satisfying the target spacing requirement, or the spacing between two preset transmission resources or groups of two transmission resources among the target transmission resources satisfying the target spacing requirement.

[0158] Optionally, the fact that the spacing between the two transmission resources or groups of two transmission resources satisfies the target spacing requirement may also be interpreted as all transmission resources selected for one TB or MAC PDU satisfying the target spacing requirement. For example, if transmission or retransmission based on HARQ feedback must be performed for one TB or MAC PDU, the target spacing requirement is satisfied between all transmission resources selected for this TB or MAC PDU.

[0159] In an embodiment of the present application, optionally, the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement is,

[0160] If the spacing between the two transmission resources or groups of two transmission resources satisfies the target spacing requirement, the following transmission method:

[0161] HARQ enable / disable instruction information for each transmission resource indicates activation, and maps transmission or retransmission based on HARQ feedback at each transmission resource;

[0162] The method includes a step of determining one of the following: the HARQ enable / disable instruction information of each transmission resource indicates disablement, and mapping transmission or retransmission that is not based on HARQ feedback at each transmission resource.

[0163] In an embodiment of the present application, optionally, the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement is,

[0164] If the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement and a feedback resource exists, the step of HARQ enable / disable instruction information of each transmission resource indicating activation and / or mapping transmission or retransmission based on HARQ feedback at each transmission resource; and / or

[0165] The method includes the step of, where the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, and where there is no feedback resource or no feedback resource exists, the HARQ enable / disable instruction information of each transmission resource indicates disablement and / or maps a transmission or retransmission not based on HARQ feedback at each transmission resource.

[0166] Here, in the above embodiment, the feedback resource is,

[0167] Uplink feedback resources (e.g., PUCCH and / or PUSCH);

[0168] or,

[0169] Uplink feedback resources and sidelink feedback resources (e.g., PSFCH);

[0170] or,

[0171] Includes sidelink feedback resources.

[0172] The existence of an uplink feedback resource may be, for example, that sidelink resource control signaling indicates an uplink feedback resource or that an uplink feedback resource is configured;

[0173] The existence of a sidelink feedback resource may, for example, mean that sidelink resource control signaling has scheduled a resource pool containing PSFCH. For example, the resource pool where the sidelink configured grant is located contains PSFCH.

[0174] The absence or non-existence of feedback resources may indicate the lack of candidate or valid feedback resources.

[0175] The absence or non-existence of an uplink feedback resource may, for example, be a sidelink resource control signaling indicating that there is no uplink feedback resource or that an uplink feedback resource is not configured;

[0176] The absence or non-existence of sidelink feedback resources may, for example, mean that sidelink resource control signaling indicates a resource pool that lacks PSFCH. For instance, the resource pool where the sidelink configured grant is located does not have PSFCH.

[0177] In some embodiments of the present application, optionally, the communication equipment is a control node, and the step of determining a transmission method based on whether the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement includes the step of ensuring that the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement. For example, the spacing between the two transmission resources or two groups of transmission resources is configured to satisfy the target spacing requirement.

[0178] In some embodiments of the present application, optionally, the communication equipment is a terminal, and the step of determining a transmission method based on whether the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement includes the step of considering that the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement (e.g., the step of determining that the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement).

[0179] In some embodiments of the present application, optionally, the communication equipment is a control node, and the method is,

[0180] The method further includes a step of ensuring that the spacing between the two transmission resources or groups of two transmission resources satisfies the target spacing requirement when a condition is met (e.g., configuring the spacing between the two transmission resources or groups of two transmission resources to satisfy the target spacing requirement), wherein the condition is,

[0181] Things requiring transmission or retransmission based on HARQ feedback;

[0182] It includes at least one of the existence of a feedback resource.

[0183] In some embodiments of the present application, optionally, the communication equipment is a terminal, and the method is,

[0184] The method further includes a step of considering the interval between the two transmission resources or two groups of transmission resources as satisfying the target interval requirement when a condition is met (e.g., determining that the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement), wherein the condition is,

[0185] Things requiring transmission or retransmission based on HARQ feedback;

[0186] It includes at least one of the existence of a feedback resource.

[0187] Here, the need for transmission or retransmission based on HARQ feedback may be, for example, the need to perform transmission or retransmission based on HARQ feedback for a MAC PDU.

[0188] Here, in the above embodiment, the feedback resource is,

[0189] Uplink feedback resources (e.g., PUCCH and / or PUSCH);

[0190] or,

[0191] Uplink feedback resources and sidelink feedback resources (e.g., PSFCH);

[0192] or,

[0193] Includes sidelink feedback resources.

[0194] In an embodiment of the present application, sidelink resource control signaling may indicate that there is an uplink feedback resource or that an uplink feedback resource is configured. Sidelink resource control signaling may indicate a resource pool containing a sidelink feedback resource. For example, the resource pool where the sidelink configured grant is located contains PSFCH.

[0195] In some embodiments of the present application, optionally, the communication equipment is a control node, and the method is,

[0196] The method further includes the step of ensuring that two conditions are simultaneously satisfied, including that the interval between the two transmission resources or two groups of transmission resources does not satisfy the target interval requirement; and the first condition (e.g., configuring the method so that these two conditions are simultaneously satisfied).

[0197] In some embodiments of the present application, optionally, the communication equipment is a terminal, and the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies a target interval requirement comprises the step of considering that two conditions are simultaneously satisfied, including: the interval between the two transmission resources or two groups of transmission resources does not satisfy the target interval requirement; and a first condition (e.g., determining that these two conditions are simultaneously satisfied).

[0198] Here, the above first condition is,

[0199] No transmission or retransmission based on HARQ feedback is required;

[0200] Performing transmission or retransmission not based on HARQ feedback;

[0201] It includes at least one of the absence or non-existence of a feedback resource.

[0202] The spacing between the two transmission resources or groups of two transmission resources does not meet the target spacing requirement, and there is no requirement for a sequence of precedence for the first condition.

[0203] Here, transmission or retransmission based on HARQ feedback is not required, which may be the case where transmission or retransmission based on HARQ feedback is not required for MAC PDU or TB.

[0204] Here, performing a transmission or retransmission not based on HARQ feedback may be performing a transmission or retransmission not based on HARQ feedback for a MAC PDU or TB.

[0205] Here, in the above embodiment, the feedback resource is,

[0206] Uplink feedback resources (e.g., PUCCH and / or PUSCH);

[0207] or,

[0208] Uplink feedback resources and sidelink feedback resources (e.g., PSFCH);

[0209] or,

[0210] Includes sidelink feedback resources.

[0211] Here, the absence or non-existence of uplink feedback resources may, for example, be due to sidelink resource control signaling indicating that there are no feedback resources or that feedback resources are not configured.

[0212] The absence or non-existence of sidelink feedback resources may, for example, mean that sidelink resource control signaling indicates a resource pool that lacks PSFCH. For instance, the resource pool where the sidelink configured grant is located does not have PSFCH.

[0213] In the above-described embodiments of the present application, optionally, the SCI is a first-stage SCI, for example, SCI format 1-A.

[0214] In the aforementioned embodiments of the present application, when a control node provides a plurality of transmission resources or groups of transmission resources, the transmission method can be dynamically determined based on whether the spacing between the transmission resources or groups of transmission resources provided by the control node satisfies the target spacing requirement. For example, in the case of transmission or retransmission based on HARQ feedback, by determining whether to enable HARQ feedback (HARQ feedback method) to adapt to the characteristics of the packet to ensure that the next transmission resource appears after the TX UE demodulates the feedback information, the waste of transmission resources is prevented, and low latency, reliability, and resource utilization are guaranteed.

[0215] It should be noted that the side link transmission method according to the embodiment of the present application may be performed by a side link transmission device or by a control module for performing the side link transmission method in said side link transmission device. The side link transmission device according to the embodiment of the present application is described by giving an example in which the side link transmission device performs the side link transmission method in the embodiment of the present application.

[0216] Referring to FIG. 7, an embodiment of the present application provides a side link transmission device (70), and

[0217] It includes a first determination module (71) for determining a transmission method based on whether the interval between two transmission resources or two groups of transmission resources satisfies the target interval requirement, and the transmission method includes a HARQ feedback method.

[0218] The above transmission resource or transmission resource group is a transmission resource or transmission resource group provided by sidelink resource control signaling.

[0219] Optionally, the two transmission resources are two transmission resources among the target transmission resources;

[0220] The above two transmission resource groups are two transmission resource groups among the target transmission resources.

[0221] Optionally, the above target transmission resource,

[0222] Transmission resources for a single transmission block or MAC PDU;

[0223] Transmission resources indicated in dynamic control signaling;

[0224] At least one of the transmission resources indicated in semi-static control signaling.

[0225] Optionally, the sidelink resource control signaling is,

[0226] Side link downlink control information;

[0227] Approval with side link configured;

[0228] MAC CE;

[0229] RRC signaling;

[0230] It includes at least one of a predetermined side link signal or channel.

[0231] Optionally, if the first determination module (71) does not satisfy the target interval requirement for the two transmission resources or two groups of transmission resources, the following transmission method:

[0232] The HARQ enable / disable instruction information for each transmission resource indicates disablement;

[0233] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission;

[0234] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission or retransmission based on HARQ feedback;

[0235] It is used to determine at least one of mapping transmissions or retransmissions that are not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0236] Optionally, the sidelink transmission device is a control node, and the first determination module (71) if the interval between the two transmission resources or two groups of transmission resources does not satisfy the target interval requirement, the following transmission method:

[0237] Not providing feedback resources;

[0238] Considering (e.g., determining) or instructing that at least some of the two transmission resources or two groups of transmission resources be ignored when the terminal transmits;

[0239] Considering (e.g., determining) or directing that at least some of the two transmission resources or two groups of transmission resources be ignored when the terminal transmits or retransmits a MAC PDU or TB based on HARQ feedback;

[0240] Used to determine at least one of the following: the terminal considering (e.g., determining) or directing that it maps a transmission or retransmission for a MAC protocol data unit (PDU) or TB that is not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources; and

[0241] Here, the feedback resource includes an uplink feedback resource, or an uplink feedback resource and a sidelink feedback resource, or a sidelink feedback resource.

[0242] The above communication equipment is a terminal, and the first determination module (71) if the interval between the two transmission resources or two groups of transmission resources does not satisfy the target interval requirement, the following transmission method:

[0243] The control node considering (e.g., deciding) that it does not provide a feedback resource;

[0244] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission;

[0245] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback;

[0246] Used to determine at least one of mapping transmissions for MAC PDUs not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources; and

[0247] Here, the feedback resource includes an uplink feedback resource, or an uplink feedback resource and a sidelink feedback resource, or a sidelink feedback resource.

[0248] Optionally, if the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, the determined transmission method is,

[0249] The HARQ enable / disable instruction information for each transmission resource indicates that it is all enabled or disabled;

[0250] It includes at least one of mapping transmissions or retransmissions based on HARQ feedback at each transmission resource, or mapping transmissions or retransmissions not based on HARQ feedback at each transmission resource.

[0251] Optionally, if the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, the determined transmission method is,

[0252] HARQ enable / disable instruction information for each transmission resource indicates activation, and maps transmission or retransmission based on HARQ feedback at each transmission resource;

[0253] It includes one of the following: HARQ enable / disable instruction information for each transmission resource indicating disablement, and mapping transmissions or retransmissions that are not based on HARQ feedback at each transmission resource.

[0254] Optionally, the first decision module (71) is,

[0255] If the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement and a feedback resource exists, the HARQ enable / disable instruction information of each transmission resource indicates activation and / or maps transmission or retransmission based on HARQ feedback at each transmission resource; and / or

[0256] If the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement and there is no feedback resource or if no feedback resource exists, the HARQ enable / disable instruction information of each transmission resource is used to indicate disablement and / or to map transmission or retransmission not based on HARQ feedback at each transmission resource, and

[0257] Here, the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0258] Optionally, the sidelink transmission device is a control node, and

[0259] It further includes a first configuration module for configuring the spacing between the two transmission resources or two groups of transmission resources to satisfy the target spacing requirement;

[0260] The above-mentioned sidelink transmission device is a terminal, and

[0261] It further includes a second determination module for determining that the spacing between the two transmission resources or two groups of transmission resources satisfies the target spacing requirement.

[0262] Optionally, the sidelink transmission device is a control node, and the first configuration module is used to configure the spacing between the two transmission resources or groups of two transmission resources to satisfy the target spacing requirement when a condition is met, and the condition is,

[0263] Things requiring transmission or retransmission based on HARQ feedback;

[0264] The existence of a feedback resource; including at least one of the following;

[0265] The above-mentioned sidelink transmission device is a terminal, and the second determination module is used to determine that, when a condition is met, the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement, and the condition is,

[0266] Things requiring transmission or retransmission based on HARQ feedback;

[0267] The existence of a feedback resource; including at least one of the following;

[0268] Here, the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0269] Optionally, the sidelink transmission device is a control node, and

[0270] The following 2 conditions:

[0271] The spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement;

[0272] A first condition; further comprising a second configuration module used to configure this to be simultaneously satisfied;

[0273] The above-mentioned sidelink transmission device is a terminal, and

[0274] The following 2 conditions:

[0275] The spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement;

[0276] A first condition; further comprising a third determination module used to determine that this is simultaneously satisfied;

[0277] Here, the above first condition is,

[0278] No transmission or retransmission based on HARQ feedback is required;

[0279] Performing transmission or retransmission not based on HARQ feedback;

[0280] It includes at least one of the absence or non-existence of a feedback resource, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0281] Optionally, the spacing between the two transmission resource groups satisfies the target spacing requirement,

[0282] It includes satisfying the target interval requirement between the I-th transmission resource of one of the two transmission resource groups and the J-th transmission resource of the other transmission resource group;

[0283] I and J are positive integers.

[0284] Optionally, the two transmission resource groups are transmission resource groups that follow the same sidelink configured acknowledgment and have the same HARQ process ID;

[0285] or,

[0286] The two transmission resource groups mentioned above are two adjacent cycle transmission resource groups that follow the same sidelink configured acknowledgment.

[0287] Optionally, satisfying the above target interval requirements is,

[0288] Greater than or equal to a+b;

[0289] Greater than or equal to a+b+c;

[0290] Greater than or equal to a+b+c+d; including one of them,

[0291] Here, a is the time between the first data transmission of the two transmission resources or two transmission resource groups and the corresponding PSFCH;

[0292] b is the time required for PSFCH reception and retransmission preparation processing;

[0293] c is the time required for PUCCH or PUSCH transmission processing;

[0294] d is the time required for PDCCH processing.

[0295] In the aforementioned embodiments of the present application, when a control node provides a plurality of transmission resources or groups of transmission resources, the transmission method can be dynamically determined based on whether the spacing between the transmission resources or groups of transmission resources provided by the control node satisfies the target spacing requirement. For example, in the case of transmission or retransmission based on HARQ feedback, by determining whether to enable HARQ feedback (HARQ feedback method) to adapt to the characteristics of the packet to ensure that the next transmission resource appears after the TX UE demodulates the feedback information, the waste of transmission resources is prevented, and low latency, reliability, and resource utilization are guaranteed.

[0296] The sidelink transmission device according to the embodiment of the present application may be a device, but may be a component, integrated circuit, or chip of a terminal or control node. The device may be a mobile terminal or a non-mobile terminal. For example, a mobile terminal includes, but is not limited to, the types of terminals (11) listed above, and a non-mobile terminal may be a server, Network Attached Storage (NAS), personal computer (PC) or television (TV), an automated teller machine (ATM) or a vending machine, etc., and the embodiment of the present application is not specifically limited thereto.

[0297] A sidelink transmission device according to an embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, and the embodiments of the present application are not specifically limited thereto.

[0298] The side link transmission device according to the embodiment of the present application can implement each step implemented in the method embodiment of FIG. 6 and achieve the same technical effect, and to avoid repetition, a detailed description is omitted here.

[0299] Optionally, as illustrated in FIG. 8, an embodiment of the present application also provides a communication device (80) comprising a processor (81), a memory (82), and a program or command stored in the memory (82) and executable by the processor (81). For example, if the communication device (80) is a terminal, each step of the side-link transmission method embodiment is implemented when the program or command is executed by the processor (81), and the same technical effect can be achieved. If the communication device (80) is a network-side device, each step of the side-link transmission method embodiment is implemented when the program or command is executed by the processor (81), and the same technical effect can be achieved. To avoid repetition, a detailed description is omitted here.

[0300] FIG. 9 is a schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application. The terminal (90) includes, but is not limited to, components such as a radio frequency device (91), a network module (92), an audio output device (93), an input device (94), a sensor (95), a display device (96), a user input device (97), an interface device (98), a memory (99), and a processor (910).

[0301] A person skilled in the art will understand that the terminal (90) may additionally include a power source (e.g., a battery) that supplies power to each component, and that the power source is logically connected to the processor (910) through a power management system to perform functions such as charging management, discharging management, and power consumption management using the power management system. The structure of the terminal shown in FIG. 9 does not constitute any limitation on the terminal, and the terminal may include more or fewer components than shown in the drawing, combine specific components, or arrange other components.

[0302] In an embodiment of the present application, the input device (94) may include a Graphics Processing Unit (GPU) (941) and a microphone (942), and it should be understood that the Graphics Processing Unit (941) processes image data of a still image or video acquired by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display device (96) may include a display panel (961) and may be configured as a display panel (961) in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input device (97) includes a touch panel (971) and other input devices (972). The touch panel (971) is also referred to as a touchscreen. The touch panel (971) may include two parts, namely a touch detection device and a touch controller. The other input devices (972) may include a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a joystick, which are omitted from this description.

[0303] In an embodiment of the present application, the radio frequency device (91) receives downlink data from network-side equipment and sends it to a processor (910) for processing, and also transmits uplink data to network-side equipment. Generally, the radio frequency device (91) includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0304] Memory (99) can be used to store software programs or commands and various data. Memory (99) mainly includes a program or command storage area and a data storage area, wherein the program or command storage area may store an operating system, an application or command required for at least one function (e.g., voice playback function, image playback function, etc.). Additionally, memory (99) may include high-speed random access memory and may also include non-volatile memory, wherein the non-volatile memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash memory. For example, it may be at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0305] The processor (910) may include one or more processing units. Optionally, an application processor and a modem processor may be integrated into the processor (910), wherein the application processor primarily processes an operating system, user interface, and applications or commands, and the modem processor primarily processes wireless communication. For example, a baseband processor. It may be understood that the modem processor may not be integrated into the processor (910).

[0306] Here, the processor (910) is used to determine a transmission method based on whether the interval between two transmission resources or two groups of transmission resources satisfies the target interval requirement, and the transmission method includes a HARQ feedback method.

[0307] The above transmission resource or transmission resource group is a transmission resource or transmission resource group provided by sidelink resource control signaling.

[0308] In the aforementioned embodiments of the present application, when a control node provides a plurality of transmission resources or groups of transmission resources, the transmission method can be dynamically determined based on whether the spacing between the transmission resources or groups of transmission resources provided by the control node satisfies the target spacing requirement. For example, in the case of transmission or retransmission based on HARQ feedback, by determining whether to enable HARQ feedback (HARQ feedback method) to adapt to the characteristics of the packet to ensure that the next transmission resource appears after the TX UE demodulates the feedback information, the waste of transmission resources is prevented, and low latency, reliability, and resource utilization are guaranteed.

[0309] Optionally, the two transmission resources are two transmission resources among the target transmission resources;

[0310] The above two transmission resource groups are two transmission resource groups among the target transmission resources.

[0311] Optionally, the above target transmission resource,

[0312] Transmission resources for a single transmission block or MAC PDU;

[0313] Transmission resources indicated in dynamic control signaling;

[0314] At least one of the transmission resources indicated in semi-static control signaling.

[0315] Optionally, the target transmission resource is provided by sidelink resource control signaling, and the sidelink resource control signaling is,

[0316] Side link downlink control information;

[0317] Approval with side link configured;

[0318] MAC CE;

[0319] RRC signaling;

[0320] It includes at least one of a predetermined side link signal or channel.

[0321] Optionally, the processor (910) may also, if the interval between the two transmission resources or groups of two transmission resources does not satisfy the target interval requirement, the following transmission method:

[0322] The HARQ enable / disable instruction information for each transmission resource indicates disablement;

[0323] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission;

[0324] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission or retransmission based on HARQ feedback;

[0325] It is used to determine at least one of mapping transmissions or retransmissions that are not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources.

[0326] Optionally, the communication equipment is a control node, and the processor (910) also, if the interval between the two transmission resources or groups of two transmission resources does not satisfy the target interval requirement, the following transmission method:

[0327] Not providing feedback resources;

[0328] The terminal determines or directs that at least some of the transmission resources among the two transmission resources or two transmission resource groups ignore the transmission resources during transmission;

[0329] The terminal determining or directing to ignore at least some of the two transmission resources or two groups of transmission resources when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback;

[0330] Used to determine or direct the terminal to map transmission or retransmission for a MAC protocol data unit (PDU) or TB that is not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources; and

[0331] Here, the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0332] Optionally, the communication equipment is a terminal, and the processor (910) also, if the interval between the two transmission resources or two groups of transmission resources does not satisfy the target interval requirement, the following transmission method:

[0333] The control node deciding not to provide feedback resources;

[0334] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources during transmission;

[0335] Ignoring at least some of the transmission resources among the two transmission resources or two groups of transmission resources when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback;

[0336] Used to determine at least one of mapping transmissions for MAC PDUs not based on HARQ feedback in at least some of the two transmission resources or groups of two transmission resources; and

[0337] Here, the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0338] Optionally, the processor (910) also, if the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, the following transmission method:

[0339] The HARQ enable / disable instruction information for each transmission resource indicates that it is all enabled or disabled;

[0340] It is used to determine at least one of mapping a transmission or retransmission based on HARQ feedback at each transmission resource, or mapping a transmission or retransmission not based on HARQ feedback at each transmission resource.

[0341] Optionally, the processor (910) also, if the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, the following transmission method:

[0342] HARQ enable / disable instruction information for each transmission resource indicates activation, and maps transmission or retransmission based on HARQ feedback at each transmission resource;

[0343] The HARQ enable / disable instruction information for each transmission resource is used to determine whether to disable or map a transmission or retransmission that is not based on HARQ feedback at each transmission resource.

[0344] Optionally, the processor (910) also,

[0345] If the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement and a feedback resource exists, the HARQ enable / disable instruction information of each transmission resource indicates activation and / or maps transmission or retransmission based on HARQ feedback at each transmission resource; and / or

[0346] If the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement and there is no feedback resource or if no feedback resource exists, the HARQ enable / disable instruction information of each transmission resource is used to indicate disablement and / or to map transmission or retransmission not based on HARQ feedback at each transmission resource, and

[0347] Here, the feedback resource includes an uplink feedback resource, or an uplink feedback resource and a sidelink feedback resource, or a sidelink feedback resource.

[0348] Optionally, the communication equipment is a control node, and the processor (910) is also used to configure the spacing between the two transmission resources or groups of two transmission resources to meet the target spacing requirements.

[0349] Optionally, the communication equipment is a terminal, and the processor (910) is also used to determine that the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement.

[0350] Optionally, the communication equipment is a control node, and the processor (910) is also used to configure the spacing between the two transmission resources or groups of two transmission resources to satisfy the target spacing requirement when a condition is met, and the condition is,

[0351] Things requiring transmission or retransmission based on HARQ feedback;

[0352] The existence of a feedback resource; including at least one of the following;

[0353] Optionally, the communication equipment is a terminal, and the processor (910) is also used to determine that, if a condition is met, the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement, and the condition is,

[0354] Things requiring transmission or retransmission based on HARQ feedback;

[0355] The existence of a feedback resource; including at least one of the following;

[0356] Here, the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0357] Optionally, the communication equipment is a control node, and the processor (910) also has the following two conditions:

[0358] The spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement;

[0359] First condition; used to configure to satisfy this simultaneously, and

[0360] Optionally, the communication equipment is a terminal, and the processor (910) also has the following two conditions:

[0361] The spacing between the two transmission resources or groups of two transmission resources does not satisfy the target spacing requirement;

[0362] First condition; used to determine that this is simultaneously satisfied,

[0363] Here, the above first condition is,

[0364] No transmission or retransmission based on HARQ feedback is required;

[0365] Performing transmission or retransmission not based on HARQ feedback;

[0366] It includes at least one of the absence or non-existence of a feedback resource, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource.

[0367] Optionally, the spacing between the two transmission resource groups satisfies the target spacing requirement,

[0368] It includes satisfying the target interval requirement between the I-th transmission resource of one of the two transmission resource groups and the J-th transmission resource of the other transmission resource group;

[0369] I and J are positive integers.

[0370] Optionally, the two transmission resource groups are transmission resource groups that follow the same sidelink configured acknowledgment and have the same HARQ process ID;

[0371] or,

[0372] The two transmission resource groups mentioned above are two adjacent cycle transmission resource groups that follow the same sidelink configured acknowledgment.

[0373] Optionally, satisfying the above target interval requirements is,

[0374] Greater than or equal to a+b;

[0375] Greater than or equal to a+b+c;

[0376] Greater than or equal to a+b+c+d; including one of them,

[0377] Here, a is the time between the first data transmission of the two transmission resources or two transmission resource groups and the corresponding PSFCH;

[0378] b is the time required for PSFCH reception and retransmission preparation processing;

[0379] c is the time required for PUCCH or PUSCH transmission processing;

[0380] d is the time required for PDCCH processing.

[0381] Optionally, embodiments of the present application also provide network-side equipment. As illustrated in FIG. 10, network-side equipment (100) includes an antenna (101), a radio frequency device (102), and a baseband device (103). The antenna (101) is connected to the radio frequency device (102). In the uplink direction, the radio frequency device (102) receives information through the antenna (101) and transmits the received information to the baseband device (103) for processing. In the downlink direction, the baseband device (103) processes information to be transmitted and transmits it to the radio frequency device (102), and the radio frequency device (102) processes the received information and transmits it through the antenna (101).

[0382] The above-described band processing device may be located in a baseband device (103), and the method executed by the network-side equipment in the above-described embodiment may be implemented in the baseband device (103), and the baseband device (103) includes a processor (104) and a memory (105).

[0383] The baseband device (103) may include, for example, at least one baseband board, and the baseband board may have multiple chips installed thereon. As shown in FIG. 10, one chip is, for example, a processor (104) and is connected to memory (105) to call a program in memory (105) and execute the operation of the network equipment described in the method embodiment.

[0384] The baseband device (103) may also include a network interface (106) for exchanging information with the radio frequency device (102), and this interface may be a common public radio interface (CPRI).

[0385] Specifically, the network-side equipment according to an embodiment of the present application further includes a command or program that can be stored in memory (105) and executed by a processor (104), and the processor (104) calls the command or program in memory (105) to perform the method performed by each module shown in FIG. 7 and achieve the same technical effect, and to avoid repetition, a detailed description is omitted here.

[0386] Embodiments of the present application also provide a readable storage medium, wherein a program or instruction is stored in the readable storage medium, and when the program or instruction is executed by a processor, each step of the sidelink transmission method embodiment is implemented and the same technical effect can be achieved, and to avoid repetition, a detailed description is omitted herein.

[0387] Here, the processor is a processor included in the terminal according to the embodiment. The readable storage medium includes a computer-readable storage medium such as Read-Only Memory (ROM), Random Access Memory (RAM), a magnetic disk, or a CD-ROM.

[0388] Embodiments of the present application also provide a chip, said chip comprising a processor and a communication interface, said communication interface being coupled with said processor, said processor being configured to execute a network-side equipment program or command to implement each step of said side-link transmission method embodiment and to achieve the same technical effect, and to avoid repetition, a detailed description is omitted herein.

[0389] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-level chip, system chip, chip system, or system-on-chip, etc.

[0390] The embodiments described in this disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. In the case of a hardware implementation, a module, device, submodule, sub-device, etc. may be implemented by one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic device used to execute the function according to this application, or a combination thereof.

[0391] It should be noted that in this specification, “comprising,” “having,” or any other variation is intended for non-exclusive inclusion, and that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements unique to such process, method, article, or device. Unless otherwise limited, an element defined as “comprising one” does not exclude the presence of other identical elements in a process, method, article, or device comprising said element. Furthermore, it should be noted that the scope of methods and devices in the method of practice of this application is not limited to performing functions in the order shown or discussed, but may perform functions in a manner that is essentially simultaneous or in reverse order depending on the relevant functions. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to specific examples may be combined in other examples.

[0392] From the description of the above embodiments, those skilled in the art will clearly understand that while the method of the above embodiments may be implemented by combining software with a necessary general hardware platform or by hardware, in many cases, the method of combining software with a necessary general hardware platform is more preferable. Based on this understanding, the essential part of the technical solution of the present application or the part contributing to the prior art may be implemented in the form of a software product, which is stored on a storage medium (e.g., ROM / RAM, magnetic disk, CD-ROM) and includes a plurality of instructions for a terminal (mobile phone, computer, server, air conditioner, or network equipment, etc.) to perform the method described in each embodiment of the present application.

[0393] As described above, embodiments of the present application have been explained with reference to the attached drawings; however, the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art may derive various modifications based on the present application without departing from the well-known facts and the scope of protection under the claims of the present application, and all such modifications fall within the scope of protection of the present application.

Claims

Claim 1 A sidelink transmission method performed by communication equipment comprises a step of determining a transmission method based on whether the interval between two transmission resources or two transmission resource groups (bundles) satisfies a target interval requirement, wherein the transmission resources or transmission resource groups are transmission resources or transmission resource groups provided by sidelink resource control signaling, and the sidelink resource control signaling comprises at least one of sidelink downlink control information; or sidelink configured acknowledgment; and the step of determining a transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies a target interval requirement comprises, if the interval between the two transmission resources or two transmission resource groups does not satisfy the target interval requirement, the following transmission method: ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups during transmission; or ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups during transmission or retransmission based on HARQ feedback; A side-link transmission method comprising the step of determining at least one of the two transmission resources or two groups of transmission resources, wherein ignoring at least some of the transmission resources includes not performing transmission or retransmission on at least some of the transmission resources. Claim 2 A sidelink transmission method according to claim 1, wherein the two transmission resources are two transmission resources among target transmission resources; the two transmission resource groups are two transmission resource groups among target transmission resources, and the target transmission resources are at least one of a transmission resource for a single transmission block (TB) or a MAC (media access control) protocol data unit (PDU); a transmission resource indicated in dynamic control signaling; and a transmission resource indicated in semi-static control signaling. Claim 3 A sidelink transmission method according to claim 1, wherein the step of determining a transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement further comprises, if the interval between the two transmission resources or two transmission resource groups does not satisfy the target interval requirement, determining at least one of the following transmission methods: HARQ enable / disable instruction information of each transmission resource indicating disablement; and mapping transmission or retransmission not based on HARQ feedback in at least some of the two transmission resources or two transmission resource groups. Claim 4 In paragraph 3, the communication equipment is a control node, and the step of determining a transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement is, if the interval between the two transmission resources or two transmission resource groups does not satisfy the target interval requirement, the following transmission method: not providing a feedback resource; determining or directing that the terminal ignores at least some of the two transmission resources or two transmission resource groups during transmission; determining or directing that the terminal ignores at least some of the two transmission resources or two transmission resource groups during transmission or retransmission of a MAC PDU or TB based on HARQ feedback; and determining or directing that the terminal maps transmission or retransmission of a MAC PDU or TB not based on HARQ feedback at at least some of the two transmission resources or two transmission resource groups; The method includes a step of determining at least one of the following, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource, and the communication equipment is a terminal, and the step of determining a transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies a target interval requirement is, if the interval between the two transmission resources or two transmission resource groups does not satisfy the target interval requirement, the following transmission method: the control node determining not to provide a feedback resource; ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups during transmission;A sidelink transmission method comprising the step of determining at least one of: ignoring at least some of the two transmission resources or two groups of transmission resources when transmitting or retransmitting a MAC PDU or TB based on HARQ feedback; and mapping a transmission for a MAC PDU not based on HARQ feedback to at least some of the two transmission resources or two groups of transmission resources; wherein the feedback resources include an uplink feedback resource, or the feedback resources include an uplink feedback resource and a sidelink feedback resource, or the feedback resources include a sidelink feedback resource. Claim 5 A sidelink transmission method according to claim 1, wherein the step of determining a transmission method based on whether the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement comprises, if the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement, determining at least one of the following transmission methods: HARQ enable / disable instruction information of each transmission resource indicating both enable or disable; and mapping transmission or retransmission based on HARQ feedback at each transmission resource, or mapping transmission or retransmission not based on HARQ feedback at each transmission resource. Claim 6 In claim 5, the step of determining the transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement comprises, if the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement, determining one of the following transmission methods: HARQ enable / disable instruction information of each transmission resource indicating enable, and mapping transmission or retransmission based on HARQ feedback at each transmission resource; or HARQ enable / disable instruction information of each transmission resource indicating disable, and mapping transmission or retransmission not based on HARQ feedback at each transmission resource; and the step of determining the transmission method based on whether the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement comprises, if the interval between the two transmission resources or two transmission resource groups satisfies the target interval requirement and a feedback resource exists, HARQ enable / disable instruction information of each transmission resource indicating enable. A sidelink transmission method comprising at least one step of determining at least one transmission method, wherein the interval between the two transmission resources or groups of two transmission resources satisfies the target interval requirement, and if there is no feedback resource or no feedback resource, the HARQ enable / disable instruction information of each transmission resource indicates disablement; and the step of determining at least one transmission method, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource. Claim 7 A side-link transmission method according to claim 1, wherein the communication equipment is a control node and the method further comprises the step of configuring the spacing between the two transmission resources or groups of two transmission resources to satisfy the target spacing requirement; or wherein the communication equipment is a terminal and the method further comprises the step of determining that the spacing between the two transmission resources or groups of two transmission resources satisfies the target spacing requirement. Claim 8 A side-link transmission method according to claim 1, wherein the communication equipment is a control node, and the method further comprises the step of configuring the interval between the two transmission resources or two groups of transmission resources to satisfy the target interval requirement when a condition is satisfied, wherein the condition includes at least one of: requiring transmission or retransmission based on HARQ feedback; and having a feedback resource; wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource. Claim 9 A sidelink transmission method according to claim 1, wherein the communication equipment is a terminal, and the method further comprises the step of determining that, when a condition is satisfied, the interval between the two transmission resources or two groups of transmission resources satisfies the target interval requirement, wherein the condition includes at least one of: requiring transmission or retransmission based on HARQ feedback; and having a feedback resource; wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource. Claim 10 A side-link transmission method according to claim 1, wherein the communication equipment is a control node, and the method further comprises the step of configuring the following two conditions: that the interval between the two transmission resources or groups of two transmission resources does not satisfy the target interval requirement; and that the first condition is simultaneously satisfied, wherein the first condition comprises at least one of: that transmission or retransmission based on HARQ feedback is not required; that transmission or retransmission not based on HARQ feedback is performed; and that there is no feedback resource or no feedback resource exists, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a sidelink feedback resource, or the feedback resource includes a sidelink feedback resource. Claim 11 A side-link transmission method according to claim 1, wherein the communication equipment is a terminal, and the method further comprises the step of determining that the following two conditions are simultaneously satisfied: that the interval between the two transmission resources or groups of two transmission resources does not satisfy the target interval requirement; and that the first condition is satisfied, wherein the first condition includes at least one of: that transmission or retransmission based on HARQ feedback is not required; that transmission or retransmission not based on HARQ feedback is performed; and that there is no feedback resource or that no feedback resource exists, wherein the feedback resource includes an uplink feedback resource, or the feedback resource includes an uplink feedback resource and a side-link feedback resource, or the feedback resource includes a side-link feedback resource. Claim 12 A sidelink transmission method according to claim 1, wherein the interval between the two transmission resource groups satisfies the target interval requirement, comprising that the I-th transmission resource of one of the two transmission resource groups and the J-th transmission resource of the other transmission resource group satisfy the target interval requirement; wherein I and J are positive integers, and the two transmission resource groups are transmission resource groups having the same HARQ process ID approved for the same sidelink configuration; or, the two transmission resource groups are transmission resource groups of two adjacent cycles approved for the same sidelink configuration. Claim 13 A sidelink transmission method according to claim 1, wherein satisfying the target interval requirement comprises one of: greater than or equal to a+b; greater than or equal to a+b+c; and greater than or equal to a+b+c+d, wherein a is the time between the first data transmission of the two transmission resources or two transmission resource groups and the corresponding PSFCH; b is the time required for the PSFCH to prepare for reception and retransmission; c is the time required for the PUCCH or PUSCH transmission processing; and d is the time required for the PDCCH processing. Claim 14 A sidelink transmission device comprising a first determination module for determining a transmission method based on whether the interval between two transmission resources or two transmission resource groups satisfies a target interval requirement, wherein the transmission resources or transmission resource groups are transmission resources or transmission resource groups provided by sidelink resource control signaling, and wherein the sidelink resource control signaling includes at least one of sidelink downlink control information; or sidelink set acknowledgment; and wherein, if the interval between the two transmission resources or two transmission resource groups does not satisfy the target interval requirement, the first determination module is configured to determine at least one of the following transmission methods: ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups during transmission; or ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups during transmission or retransmission based on HARQ feedback, wherein ignoring at least some of the transmission resources among the two transmission resources or two transmission resource groups includes not performing transmission or retransmission on at least some of the transmission resources. Claim 15 A communication device comprising a processor and a memory in which a program or instruction that can be executed by said processor is stored, wherein when said program or instruction is executed by said processor, said communication device implements a side-link transmission method according to any one of claims 1 to 13. Claim 16 A readable storage medium, wherein a program or instruction is stored in the readable storage medium, and a side-link transmission method according to any one of claims 1 to 13 is implemented when the program or instruction is executed by a processor. Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete Claim 25 delete Claim 26 delete Claim 27 delete Claim 28 delete Claim 29 delete

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