Resource Allocation Method, Resource Usage Method, Device, Storage Medium, Terminal, and Base Station for V2X Services

Abstract

A resource allocation method, a resource usage method, a device, a storage medium, a terminal, and a base station for V2X services. The resource allocation method includes: receiving first information, where the first information includes the feedback requirements of the V2X service; determining transmission resources according to the feedback requirements of the V2X service, where when the feedback requirements of the V2X service are that feedback is needed, the allocated transmission resources for the V2X service have corresponding feedback resources; generating and sending second information, where the second information at least includes the transmission resources. Through the solution provided by the present invention, the resource allocation scheme can be optimized and the use of resources can be made more reasonable, that is, it can avoid resource waste caused by the base station configuring feedback resources for all V2X transmission resources, and can also timely respond to the requests of the UE and allocate transmission resources that meet the feedback requirements for it.

Description

Technical Field

[0001] The present invention relates to the field of communication technologies, and particularly to a resource allocation method, a resource usage method, a device, a storage medium, a terminal, and a base station for V2X services. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) is studying the introduction of vehicle to X (V2X, also known as vehicle to everything) in New Radio (NR, also known as new air interface, i.e., 5G). Since the 5G system can provide greater bandwidth and lower latency, it can better meet the service requirements of V2X. NR V2X, as an enhancement of Long Term Evolution (LTE) technology, is a key technical means to enable vehicle networking.

[0003] Currently, 3GPP has agreed that NR V2X can transmit V2X services in unicast, groupcast, or broadcast modes. When a user equipment (UE) acting as a transmitter transmits V2X services in unicast or groupcast modes, a sidelink (SL) Hybrid Automatic Repeat reQuest (HARQ) feedback mechanism can be introduced.

[0004] In NR V2X, the resource allocation method in LTE is basically continued. For example, mode 1 is introduced: the base station schedules transmission resources for V2X data (which can be simply referred to as V2X data) for the UE; mode 2: the UE determines the transmission resources for V2X data by itself. For example, the UE can select transmission resources by itself based on a resource pool configured by the network or a pre-configured resource pool.

[0005] When the UE adopts mode 1, the UE needs to be in the Radio Resource Control (RRC) connected state. The base station can schedule transmission resources for V2X data for the UE through RRC signaling or Downlink Control Information (DCI). After receiving the scheduled transmission resources, the UE sends V2X data to the UE acting as the receiver (Rx) through the PC5 interface in the time slot applicable to the scheduled transmission resources.

[0006] Since there is no feedback mechanism for V2X services in LTE, and 3GPP has agreed to introduce a feedback mechanism for NR V2X. This has led to many remaining problems regarding how to allocate transmission resources according to V2X service requirements for mode 1. For example, when the base station allocates transmission resources, it is very likely to misallocate transmission resources that are not suitable for feedback requirements, resulting in the sending UE having no available feedback resources for the receiving end to send SLHARQ feedback after using the allocated transmission resources to send V2X data to the receiving end. Summary of the Invention

[0007] The technical problem solved by the present invention is how to optimize the resource allocation scheme in NR V2X to ensure that the transmission resources allocated to the UEs that need to receive SLHARQ feedback have corresponding feedback resources.

[0008] To solve the above technical problem, an embodiment of the present invention provides a resource allocation method, including: determining transmission resources for which corresponding feedback resources are allocated to a user equipment, the transmission resources being used for transmitting V2X services; generating and sending second information to the user equipment, the second information including the transmission resources, PUCCH resources for forwarding feedback information, and a time interval, the feedback information being carried on the feedback resources, the time interval being the time interval between the transmission resources and the PUCCH resources, or the time interval between the feedback resources and the PUCCH resources.

[0009] Optionally, the frequency domain position of the feedback resources is implicitly indicated by the corresponding transmission resources.

[0010] Optionally, the resource allocation method further includes: receiving the feedback information on the PUCCH resources corresponding to the time interval.

[0011] Optionally, that the transmission resources have corresponding feedback resources means that there are available feedback resources in a time slot at a first time slot interval from the transmission resources, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

[0012] Optionally, the second information further includes: the feedback resources corresponding to the transmission resources.

[0013] Optionally, before determining the transmission resources for which corresponding feedback resources are allocated to a user equipment, the resource allocation method further includes: receiving first information, the first information including the feedback requirements of the V2X services.

[0014] Optionally, the first information includes feedback requirements of multiple V2X services, where the multiple V2X services include a first V2X service and a second V2X service. The feedback requirement of the first V2X service is that feedback is required, and the feedback requirement of the second V2X service is that no feedback is required. The second information includes the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service, where the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0015] Optionally, the PUCCH resource includes the frequency domain position corresponding to the PUCCH and the symbol positions occupied within a time slot.

[0016] To solve the above technical problems, an embodiment of the present invention further provides a resource allocation device, including: a determination module, configured to determine the transmission resources for which corresponding feedback resources are allocated to a user equipment, where the transmission resources are used to transmit V2X services; a first sending module, configured to generate and send second information to the user equipment, where the second information includes the transmission resources, the PUCCH resources for forwarding feedback information, and a time interval, the feedback information is carried on the feedback resources, and the time interval is the time interval between the transmission resources and the PUCCH resources, or the time interval between the feedback resources and the PUCCH resources.

[0017] To solve the above technical problems, an embodiment of the present invention further provides a resource usage method, including: receiving second information, where the second information includes the transmission resources allocated for V2X services, the PUCCH resources for forwarding feedback information, and a time interval, the transmission resources have corresponding feedback resources, the feedback information is carried on the feedback resources, and the time interval is the time interval between the transmission resources and the PUCCH resources, or the time interval between the feedback resources and the PUCCH resources; using the transmission resources to transmit data of the V2X services.

[0018] Optionally, the resource usage method further includes: receiving feedback information for the data on the feedback resources; sending the received feedback information on the PUCCH resources corresponding to the time interval.

[0019] Optionally, sending the received feedback information on the PUCCH resources corresponding to the time interval includes: when the feedback information is NACK, using the PUCCH resources corresponding to the time interval to send the feedback information.

[0020] Optionally, the PUCCH resource includes the frequency domain position corresponding to the PUCCH and the symbol positions occupied within a time slot.

[0021] Optionally, the frequency-domain position of the feedback resource is implicitly indicated by the corresponding transmission resource.

[0022] Optionally, the resource usage method further includes: sending first information, where the first information includes the feedback requirements of the V2X service.

[0023] Optionally, the first information includes the feedback requirements of multiple V2X services. Among them, the multiple V2X services include a first V2X service and a second V2X service. The feedback requirement of the first V2X service is that feedback is needed, and the feedback requirement of the second V2X service is that no feedback is needed. The second information includes the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Among them, the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0024] Optionally, the fact that the transmission resource has a corresponding feedback resource means that there is an available feedback resource in the time slot at a first time slot interval from the transmission resource, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

[0025] Optionally, the second information further includes: the feedback resource corresponding to the transmission resource.

[0026] To solve the above technical problems, an embodiment of the present invention further provides a resource usage device for V2X services, including: a receiving module, configured to receive second information, where the second information includes the transmission resources allocated for the V2X service, the PUCCH resources for forwarding feedback information, and a time interval. The transmission resource has a corresponding feedback resource, and the feedback information is carried on the feedback resource. The time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource and the PUCCH resource; a transmission module, configured to use the transmission resource to transmit the data of the V2X service.

[0027] To solve the above technical problems, an embodiment of the present invention further provides a method for sending feedback information, including: receiving the feedback information of other user equipment; based on the time interval and PUCCH resources configured by the base station, sending the feedback information to the base station through the PUCCH resources at the corresponding time slot position, where the time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource corresponding to the transmission resource and the PUCCH resource.

[0028] Optionally, the feedback information is feedback on the data transmitted using the transmission resource, and the feedback information is transmitted on the feedback resource.

[0029] To solve the above technical problems, an embodiment of the present invention further provides a feedback information sending device, including: a receiving module, configured to receive feedback information from other user devices; a sending module, configured to send the feedback information to a base station through the PUCCH resource at a corresponding time slot position based on a time interval configured by the base station and the PUCCH resource, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource.

[0030] To solve the above technical problems, an embodiment of the present invention further provides a method for receiving feedback information, including: receiving feedback information from a user device at a corresponding time slot position based on a configured time interval and the PUCCH resource, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource.

[0031] Optionally, the feedback information is feedback from other user devices on data transmitted by the user device using the transmission resource, and the feedback information is transmitted on the feedback resource.

[0032] To solve the above technical problems, an embodiment of the present invention further provides a feedback information receiving device, including: a receiving module, configured to receive feedback information from a user device at a corresponding time slot position based on a configured time interval and the PUCCH resource, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource.

[0033] To solve the above technical problems, an embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and when the computer instructions are run by a processor, the steps of the above method are executed.

[0034] To solve the above technical problems, an embodiment of the present invention further provides a base station, including a memory and a processor, where computer instructions capable of running on the processor are stored on the memory, and when the processor runs the computer instructions, the steps of the above method are executed.

[0035] To solve the above technical problems, an embodiment of the present invention further provides a terminal, including a memory and a processor, where computer instructions capable of running on the processor are stored on the memory, and when the processor runs the computer instructions, the steps of the above method are executed.

[0036] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0037] For the base station side, an embodiment of the present invention provides a resource allocation method for V2X services, including: receiving first information, where the first information includes the feedback requirements of the V2X service; determining transmission resources according to the feedback requirements of the V2X service, where when the feedback requirement of the V2X service is that feedback is needed, the allocated transmission resources for the V2X service have corresponding feedback resources; generating and sending second information, where the second information at least includes the transmission resources. Thus, it is possible to optimize the resource allocation logic of the base station and avoid allocating transmission resources that are not suitable for the feedback requirements. By adopting the solution of this embodiment, it is possible to avoid resource waste caused by the base station configuring feedback resources for all V2X transmission resources, and at the same time, it can respond to the requests of UEs in a timely manner and allocate transmission resources that meet the feedback requirements for them. Specifically, according to the feedback requirements indicated by the UE in the first information, the base station can specifically allocate appropriate transmission resources for the V2X service for the UE. For example, when the V2X service needs feedback, the allocated transmission resources need to have corresponding feedback resources; while when the V2X service does not need feedback, the allocated transmission resources may not have corresponding feedback resources.

[0038] For the UE side, an embodiment of the present invention further provides a resource usage method for V2X services, including: sending first information, where the first information includes the feedback requirements of the V2X service; receiving second information, where the second information includes the transmission resources allocated for the V2X service; using the transmission resources to transmit data of the V2X service; where when the feedback requirement of the V2X service is that feedback is needed, the transmission resources have corresponding feedback resources. Thus, for a connected UE, it is allowed that the UE as the sending end indicates the feedback requirements of the V2X service to the base station through the first information when it needs to transmit the V2X service, so that the allocated transmission resources by the base station are more in line with the needs of the V2X service currently being carried out by the UE. Further, by adopting the solution of this embodiment, it is possible to optimize the resource usage logic of the UE. For the allocated transmission resources, preferentially use the transmission resources with corresponding feedback resources to transmit V2X data that requires SL HARQ feedback, ensuring that the UE as the sending end can successfully receive the SL HARQ feedback from the UE as the receiving end. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a flowchart of a resource allocation method for V2X services according to an embodiment of the present invention;

[0040] Figure 2 is a schematic structural diagram of a resource allocation device for V2X services according to an embodiment of the present invention;

[0041] Figure 3 is a flowchart of a resource usage method for V2X services according to an embodiment of the present invention;

[0042] Figure 4 is Figure 3 a flowchart of a specific implementation manner of step S303 in

[0043] Figure 5 a schematic structural diagram of a resource usage device for V2X services according to an embodiment of the present invention;

[0044] Figure 6 a schematic diagram of a typical application scenario according to an embodiment of the present invention. Specific implementation manner

[0045] As described in the background art, with the 3GPP's agreement to introduce a feedback mechanism for NR V2X, for mode 1, there are still many remaining problems regarding how to allocate transmission resources according to V2X service requirements. When the base station allocates transmission resources, it is very likely to misallocate transmission resources that are not suitable for feedback requirements.

[0046] Specifically, in Release 12 of LTE, the ProSe Direct Communication mechanism was introduced. Direct communication can be carried out between UE A and UE B (which can be multiple UEs) through the PC5 interface.

[0047] In the LTE direct communication scenario, there are two modes of resource allocation methods. One is the scheduled resource allocation method, in which the base station configures the transmission resources for the UE to perform V2X services through dedicated signaling, such as RRC signaling or downlink control signaling. The other is the autonomous resource selection method. The base station can provide a resource pool for direct communication to the UE through system messages, RRC signaling, or in a pre-configured manner. The UE selects the resources for direct communication from the resource pool to perform V2X services. If the UE as the sending end is not within the network coverage of the base station, the UE can use the autonomous resource selection method to select the resources for direct communication from the pre-configured resource pool.

[0048] Based on the direct communication mechanism, 3GPP also supports V2X. Within the network coverage, a certain UE can send V2X messages to multiple UEs. It should be noted that both the UE as the receiving end and the UE as the sending end may not be within the network coverage, or some UEs are within the network coverage.

[0049] On the other hand, there is no feedback mechanism for V2X services in LTE, while 3GPP agrees to introduce a feedback mechanism for NR V2X. Considering that the base station will not configure corresponding feedback resources in each time slot where the transmission resources are located, because this will cause a great waste of resources.

[0050] Therefore, if the existing resource allocation mode in LTE (such as mode 1) is directly applied to the NR V2X scenario, it is very likely that the base station will misallocate transmission resources that are not suitable for feedback requirements to the UEs that need to receive SL HARQ feedback, resulting in no available feedback resources for the receiving end to send SL HARQ feedback after the transmitting end UE uses the allocated transmission resources to send V2X data to the receiving end.

[0051] To solve the above technical problems, for the base station side, an embodiment of the present invention provides a resource allocation method for V2X services, including: receiving first information, where the first information includes the feedback requirements of the V2X service; determining transmission resources according to the feedback requirements of the V2X service, where when the feedback requirement of the V2X service is that feedback is needed, the transmission resources allocated for the V2X service have corresponding feedback resources; generating and sending second information, where the second information at least includes the transmission resources. Thus, it is possible to optimize the resource allocation logic of the base station and avoid allocating transmission resources that are not suitable for feedback requirements. By adopting the solution of this embodiment, it is possible to avoid resource waste caused by the base station configuring feedback resources for all V2X transmission resources, and at the same time, it can timely respond to the requests of UEs and allocate transmission resources that meet the feedback requirements for them. Specifically, according to the feedback requirements indicated by the UE in the first information, the base station can specifically allocate appropriate transmission resources for V2X services for the UE. For example, when the V2X service requires feedback, the allocated transmission resources need to have corresponding feedback resources; while when the V2X service does not require feedback, the allocated transmission resources may not have corresponding feedback resources.

[0052] To make the above objects, features, and beneficial effects of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention in conjunction with the accompanying drawings.

[0053] Figure 1 It is a flowchart of a resource allocation method for V2X services according to an embodiment of the present invention. The solution of this embodiment can be applied to the vehicle-to-everything (V2X) scenario, such as the NR V2X scenario. The solution of this embodiment can be executed by the network side, such as by a base station on the network side.

[0054] Specifically, referring to Figure 1 , the resource allocation method described in this embodiment may include the following steps:

[0055] Step S101: Receive a first piece of information, where the first piece of information includes the feedback requirement of the V2X service.

[0056] Step S102: Determine transmission resources according to the feedback requirement of the V2X service. Specifically, when the feedback requirement of the V2X service is that feedback is needed, the transmission resources allocated for the V2X service have corresponding feedback resources.

[0057] Step S103: Generate and send a second piece of information, where the second piece of information includes at least the transmission resources.

[0058] In one embodiment, the first piece of information may be an uplink signaling sent by a UE in the RRC connected state, and the base station may be the serving base station (gNB) of the serving cell that manages the UE. For example, the uplink signaling may be an RRC signaling.

[0059] Furthermore, the feedback requirement of the V2X service refers to whether the V2X service needs SL HARQ feedback. For example, when the feedback requirement of the V2X service is that feedback is needed, in step S102, the base station needs to allocate transmission resources for the UE as the sender to transmit V2X service data (which can be simply referred to as V2X data), and also needs to reserve corresponding feedback resources for the UE to receive the SL HARQ feedback of the V2X data. Another example is that when the feedback requirement of the V2X service is that feedback is not needed, in step S102, the base station may only allocate transmission resources for the UE to transmit V2X service data (which can be simply referred to as V2X data), and there is no need to reserve corresponding feedback resources.

[0060] For the purpose of resource conservation, the base station usually does not configure corresponding feedback resources in each time slot where the transmission resources are located. Therefore, by adopting the solution of this embodiment, the base station can allocate transmission resources for the V2X service more reasonably to ensure that the transmission resources of the V2X service that need feedback and are allocated to the UE all have corresponding feedback resources.

[0061] In one embodiment, the feedback requirement of the V2X service may be associated with the destination of the V2X service. To reduce signaling consumption, the destination can be represented by an identifier. Specifically, in unicast, the identifier (destination ID) of the destination is in one-to-one correspondence with the UE; in multicast, the identifier of the destination corresponds to a group of UEs.

[0062] For example, the first information may include that the V2X services transmitted to destination receiver 1 and the V2X services transmitted to destination receiver 2 need feedback, while the V2X services transmitted to destination receiver 3 do not need feedback. Among them, destination receiver 1 corresponds to UE1 as the receiver, destination receiver 2 corresponds to UE2 as the receiver, and destination receiver 3 corresponds to UE3 as the receiver.

[0063] In another embodiment, the feedback requirement of the V2X service may be associated with the logical channel (LCH for short) used to carry the V2X service. Specifically, the LCH and the V2X service are usually in a one-to-one correspondence. Of course, it is not excluded that in actual applications, the protocol stipulates that there may be a one-to-many correspondence between the LCH and the V2X service.

[0064] For example, the first information may include that the V2X service transmission through LCH1 needs feedback, while the V2X service transmissions through LCH2 and LCH3 do not need feedback.

[0065] In one embodiment, the transmission resource having a corresponding feedback resource means that there is an available feedback resource in the time slot at a first time slot interval from the transmission resource, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

[0066] Specifically, the available feedback resource means that in this time slot, a feedback resource corresponding to the transmission resource is configured, and the feedback resource is in an idle state, that is, not occupied by other UEs.

[0067] Further, the first time slot interval is determined by configuration means that the length of the first time slot interval is indicated by the downlink signaling (such as RRC signaling) pre-sent by the base station.

[0068] Further, the first time slot interval is determined by pre-configuration means that the length of the first time slot interval is pre-set in the subscriber identification module (SIM card) associated with the UE.

[0069] Further, the first time slot interval is obtained by dynamic indication means that the length of the first time slot interval is indicated by the downlink signaling (such as DCI) dynamically sent by the base station.

[0070] In one embodiment, when the feedback requirement of the V2X service is that feedback is needed, the second information may only include the transmission resource, and the corresponding feedback resource may be implicitly indicated by the transmission resource. For example, the frequency-domain position of the feedback resource is determined by the physical resource block index of the Physical Sidelink Share Channel (PSSCH for short), and the time-domain position of the feedback resource can be determined according to the time-domain position of the transmission resource and the first time slot interval.

[0071] Assume that the data of the V2X service will be transmitted in time slot n, then the corresponding feedback resource may be located in time slot n + k, where k is the first time slot interval. The k may be determined by a configured or pre-configured manner, or obtained by a dynamic indication manner.

[0072] In one embodiment, the second information may only include the transmission resource, and the UE that receives the second information determines by itself whether the transmission resource has a corresponding feedback resource according to the time-domain position of the transmission resource and the first time slot interval.

[0073] In a variant, it may be directly indicated in the second information whether the transmission resource has a corresponding feedback resource. For example, 1-bit indication information may be included in the second information to indicate whether the transmission resource has a corresponding feedback resource. In response to receiving the second information, the UE may determine whether the transmission resource has a corresponding feedback resource according to the indication information, and then when it is determined that the transmission resource has a corresponding feedback resource, determine the time-domain position of the feedback resource according to the time-domain position of the transmission resource and the first time slot interval.

[0074] Preferably, the second information may be downlink signaling, such as RRC signaling or DCI.

[0075] In one embodiment, when the feedback requirement of the V2X service is that feedback is needed, the feedback resource may also be explicitly indicated by the base station. In addition to including the transmission resource, the second information may also explicitly indicate the corresponding feedback resource. That is, the second information may include the transmission resource and its corresponding feedback resource.

[0076] For example, the base station may allocate transmission resources for V2X services to different destination receivers. Suppose the first information indicates that the V2X services transmitted to destination receiver 1 and the V2X services transmitted to destination receiver 2 need feedback, while the V2X services transmitted to destination receiver 3 do not need feedback. Then, the transmission resources allocated by the base station for destination receiver 1 and destination receiver 2 in the second information are accompanied by feedback resources, while the transmission resources allocated for destination receiver 3 do not have feedback resources.

[0077] In one embodiment, it may be indicated in the second information that the transmission resources are specifically allocated to V2X data transmitted to a specific destination receiver. For example, the second information may include the transmission resources and the associated destination receiver (such as destination receiver 1). In response to receiving the second information, the UE may use the transmission resources to perform V2X data transmission to the destination receiver 1.

[0078] In one embodiment, it may be indicated in the second information that the transmission resources are specifically allocated to V2X data transmitted on a specific LCH. For example, the second information may include the LCH associated with the transmission resources. In response to receiving the second information, the UE may use the transmission resources to transmit data of the V2X service carried by the associated LCH.

[0079] In one embodiment, the base station may reject some or all of the feedback requirements of the UE. Specifically, when the feedback requirement for the V2X service is that feedback is needed, and there are no available feedback resources for all the currently allocable transmission resources, the second information may further include: rejection information indicating that the transmission resources do not have corresponding feedback resources.

[0080] For example, in response to receiving the first information, if the base station finds that it cannot ensure that the allocated transmission resources have corresponding feedback resources, the base station may carry the rejection information in the second information returned to the UE to indicate that one or more destination receivers that require feedback in its request cannot support feedback.

[0081] In one embodiment, the first information may include feedback requirements for multiple V2X services. Among them, the multiple V2X services may include a first V2X service and a second V2X service. The feedback requirement for the first V2X service may be that feedback is needed, and the feedback requirement for the second V2X service may be that feedback is not needed. The second information may include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service, where the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0082] Further, in the time domain, the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service may be continuous, and the UE receiving the second information can divide and use them by determining whether the transmission resources have corresponding feedback resources.

[0083] In a variant, step S103 may include the steps of: generating and sending the second information for the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service respectively. In other words, when the first information includes the feedback requirements of the first V2X service and the second V2X service, the base station may generate two pieces of the second information, one of which includes the transmission resources allocated for the first V2X service, and the other of which includes the transmission resources allocated for the second V2X service. In response to receiving these two pieces of the second information, the UE may transmit the data of the first V2X service using the transmission resources allocated for the first V2X service, and transmit the data of the second V2X service using the transmission resources allocated for the second V2X service.

[0084] In an embodiment, when the UE needs to switch from the currently resident serving cell to an adjacent cell, to ensure the continuity of the V2X service during the handover process and ensure that the feedback performance remains unchanged, the base station (which can be understood as the source base station) governing the currently resident serving cell of the UE, after obtaining the feedback requirements of the UE for one or more V2X services, may also perform the steps during the handover: generating a cell handover request message and sending it to the base station (which can be understood as the target base station) of the adjacent cell to which the UE needs to hand over, where the cell handover request message includes the feedback requirements of the V2X services that the UE performing the cell handover operation is engaged in. Thus, the target base station can allocate reasonable transmission resources for the V2X service to the UE in the handover command, or, immediately after the UE hands over to the adjacent cell, allocate transmission resources for the V2X service to the UE through downlink control signaling. Among them, in particular, transmission resources with corresponding feedback resources need to be allocated for the V2X services that require feedback.

[0085] As described above, by adopting the solution of this embodiment, for the base station side, it is possible to optimize the resource allocation logic of the base station and avoid allocating transmission resources that are not suitable for feedback requirements. Specifically, it can avoid resource waste caused by the base station configuring feedback resources for all V2X transmission resources, and can also timely respond to the requests of UEs and allocate transmission resources that meet the feedback requirements for them. Further, according to the feedback requirements indicated by the UE in the first information, the base station can specifically allocate appropriate transmission resources for the V2X service for the UE. For example, when the V2X service requires feedback, the allocated transmission resources need to have corresponding feedback resources; when the V2X service does not require feedback, the allocated transmission resources may not have corresponding feedback resources.

[0086] Figure 2 It is a schematic structural diagram of a resource allocation device for V2X services according to an embodiment of the present invention. Those skilled in the art understand that the resource allocation device 2 for V2X services described in this embodiment (which can be abbreviated as the resource allocation device 2) can be used to implement the Figure 1 method technical solutions described in the above

[0087] Specifically, in this embodiment, the resource allocation device 2 may include: a receiving module 21, configured to receive a first information, where the first information includes the feedback requirements of the V2X service; a determining module 22, configured to determine transmission resources according to the feedback requirements of the V2X service, where when the feedback requirement of the V2X service is that feedback is required, the allocated transmission resources for the V2X service have corresponding feedback resources; a first sending module 23, configured to generate and send a second information, where the second information at least includes the transmission resources.

[0088] In one embodiment, that the transmission resources have corresponding feedback resources may mean that there are available feedback resources in the time slots at a first time slot interval from the transmission resources, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

[0089] In one embodiment, when the feedback requirement of the V2X service is that feedback is required, the second information may further include: the feedback resources corresponding to the transmission resources.

[0090] In one embodiment, the first information may include the feedback requirements of multiple V2X services. Among them, the multiple V2X services may include a first V2X service and a second V2X service. The feedback requirement of the first V2X service may be that feedback is required, and the feedback requirement of the second V2X service may be that no feedback is required. The second information may include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Among them, the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0091] In another embodiment, the first information may include the feedback requirements of multiple V2X services. Among them, the multiple V2X services may include a first V2X service and a second V2X service. The feedback requirement of the first V2X service may be that feedback is required, and the feedback requirement of the second V2X service may be that no feedback is required. The first sending module 23 may include: a sending sub-module 231, configured to generate and send the second information respectively for the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service.

[0092] In one embodiment, the resource allocation device 2 may further include: a second sending module 24, configured to generate and send a cell handover request information, where the cell handover request information includes the feedback requirements of the V2X services that the UEs that need to perform cell handover operations are carrying out.

[0093] For more content about the working principle and working mode of the resource allocation device 2, reference may be made to the relevant description in the above Figure 1 and will not be elaborated here.

[0094] Figure 3 is a flowchart of a resource usage method for V2X services according to an embodiment of the present invention. The solution of this embodiment can be applied to a vehicle-to-everything (V2X) scenario, such as an NR V2X scenario. The solution of this embodiment can be executed on the user equipment side, such as being executed by a UE as a sending end. The UE may use the allocated transmission resources to transmit data of V2X services in a unicast or multicast manner in mode 1.

[0095] Specifically, referring to Figure 3 , the resource usage method in this embodiment may include the following steps:

[0096] Step S301: Send a first information, where the first information includes the feedback requirements of the V2X service;

[0097] Step S302: Receive a second information, where the second information includes the transmission resources allocated for the V2X service;

[0098] Step S303, transmit the data of the V2X service using the transmission resource, where when the feedback requirement of the V2X service is that feedback is needed, the transmission resource has a corresponding feedback resource.

[0099] Those skilled in the art understand that steps S301 to S302 can be regarded as execution steps corresponding to steps S101 to S103 in the above Figure 1 illustrated embodiment, and the two are complementary in terms of specific implementation principles and logic. Therefore, the explanations of the terms involved in this embodiment can refer to Figure 1 the relevant descriptions in the illustrated embodiment, which will not be elaborated here.

[0100] In this embodiment, the UE can be in the serving cell and has already established an RRC connection with the base station adopting the solution in the above Figure 1 illustrated embodiment to carry out data transmission services. The serving cell is the primary cell of the UE, and the UE receives system messages and paging messages from the serving cell. Further, when the UE expects to carry out NR V2X services to transmit the data of the V2X service to multiple targets, it can execute step S301 to report the feedback requirement of the V2X service to the base station.

[0101] In one embodiment, the feedback requirement of the V2X service can be associated with the destination receiver of the V2X service. For example, in step S301, the UE can indicate the destination receiver of the receiving-end UE that needs to carry out the V2X service in the first information, and indicate the feedback requirement of the V2X service to this destination receiver.

[0102] In another embodiment, the feedback requirement of the V2X service can be associated with the logical channel for carrying the V2X service. For example, in step S301, the UE can indicate the LCH that needs to carry out the V2X service in the first information, and indicate the feedback requirement of the V2X service through this LCH.

[0103] In one embodiment, different V2X services carried out by the same UE can indicate the corresponding feedback requirements through different first information. For example, if UE1 needs to carry out V2X services with UE2 and UE3 respectively, then when UE1 executes step S301, it can generate two first information and send them respectively. One of the first information contains the feedback requirement of the V2X service carried out with UE2, and the other first information contains the feedback requirement of the V2X service carried out with UE3. Among them, the feedback requirement of the V2X service carried out with UE2 and the feedback requirement of the V2X service carried out with UE3 can be the same or different.

[0104] In a variation, V2X services performed by the same UE with the same feedback requirements can be indicated by the same first piece of information. Still taking the example where UE1 needs to conduct V2X services with UE2 and UE3 respectively, assuming that the feedback requirements for both of these V2X services are that feedback is required, then when UE1 executes the first piece of information, it can generate only one first piece of information and send it. This first piece of information simultaneously includes the identifiers of the destination receivers of UE2 and UE3, as well as the feedback requirement with the content "feedback is required". Further, if UE1 also needs to conduct a V2X service with UE4 and the feedback requirement for this V2X service is that feedback is not required, then UE1 can generate an independent first piece of information to separately indicate the identifier of the destination receiver of UE4 and the feedback requirement with the content "feedback is not required".

[0105] In yet another variation, V2X services with different feedback requirements can also be indicated by the same first piece of information. Specifically, the first piece of information can include the feedback requirements of multiple V2X services. Among them, the multiple V2X services can include a first V2X service and a second V2X service. The feedback requirement of the first V2X service can be that feedback is required, and the feedback requirement of the second V2X service can be that feedback is not required. The second piece of information can include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Among them, the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0106] In one embodiment, to reduce signaling consumption, the second piece of information can only include the transmission resources, and the corresponding feedback resources can be implicitly indicated by the transmission resources.

[0107] For example, the second piece of information can simultaneously include the transmission resources with corresponding feedback resources and the transmission resources without corresponding feedback resources, and these two types of transmission resources may be continuous in the time domain. Therefore, in step S303, the UE needs to split them by itself to determine which of the transmission resources allocated by the base station through the second piece of information can be used for V2X service transmission that requires feedback, and which transmission resources can only be used for V2X service transmission that does not require feedback.

[0108] Specifically, referring to Figure 4 , step S303 can include the following steps:

[0109] Step S3031: Determine whether the transmission resource has a corresponding feedback resource according to the candidate time slot positions of the preset feedback resources, the time slot position of the transmission resource indicated in the second information, and the first time slot interval, where the first time slot interval is the time slot interval between the feedback resource and the corresponding transmission resource, and the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication;

[0110] Step S3032: Determine the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service according to the judgment result;

[0111] Step S3033: Transmit the data of the first V2X service using the transmission resources allocated for the first V2X service;

[0112] Step S3034: Transmit the data of the second V2X service using the transmission resources allocated for the second V2X service.

[0113] Among them, the execution order of Step S3033 and Step S3034 can be interchanged, and the two steps can also be executed in parallel.

[0114] Further, the candidate time slot positions of the preset feedback resources can be periodically configured by means of configuration, pre-configuration or dynamic signaling of the base station.

[0115] For example, the first time slot interval can be 3 time slots. Assuming that the time slot position of the transmission resource indicated in the second information received is from time slot n to time slot n + 2, the UE can determine whether time slots n + 3 to n + 5 belong to the candidate time slot positions of the feedback resources. Assuming that only time slot n + 3 is the candidate time slot position, it can be determined that the transmission resource of time slot n is the transmission resource for the V2X service that requires feedback, and the transmission resources of time slots n + 1 to n + 2 are the transmission resources for the V2X service that does not require feedback.

[0116] Further, on the basis of ensuring the transmission of the V2X service that requires feedback first, in order to maximize the utilization of resources, after transmitting the data of the first V2X service using the transmission resources allocated for the first V2X service, if there are remaining resources in the transmission resources allocated for the first V2X service, the UE can use the remaining resources to transmit the data of the second V2X service.

[0117] In a variation, the number of the second information may be multiple and each may include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Further, in response to receiving multiple second information, for each second information, the UE may use the transmission resources indicated in the second information to transmit corresponding V2X data.

[0118] In one embodiment, that the transmission resources have corresponding feedback resources may mean that there are available feedback resources in a time slot at a first time slot interval from the transmission resources, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

[0119] In one embodiment, when the feedback requirement of the V2X service is that feedback is needed, the second information may further include: the feedback resources corresponding to the transmission resources.

[0120] In one embodiment, when the feedback requirement of the V2X service is that feedback is needed and there are no available feedback resources for all the currently allocable transmission resources, the second information may further include: an indication information that the transmission resources do not have corresponding feedback resources. At this time, according to the user implementation in actual applications, the UE may choose to use the transmission resources to transmit V2X data that requires SL HARQ feedback. Or, the UE may also choose to wait for a period of time and then re-send the first information to the base station until the base station can allocate transmission resources with corresponding feedback resources to it.

[0121] As described above, by adopting the solution of this embodiment, for a connected UE, the UE as the sender is allowed to indicate the feedback requirement of the V2X service to the base station through the first information when the V2X service needs to be transmitted, so that the transmission resources allocated by the base station are more in line with the needs of the V2X service currently being performed by the UE. Further, adopting the solution of this embodiment can optimize the resource usage logic of the UE. For the allocated transmission resources, the transmission resources with corresponding feedback resources are preferentially used to transmit V2X data that requires SL HARQ feedback, ensuring that the UE as the sender can successfully receive the SL HARQ feedback from the UE as the receiver.

[0122] Figure 5 It is a schematic structural diagram of a resource usage device for V2X services according to an embodiment of the present invention. Those skilled in the art understand that the resource usage device 5 for V2X services described in this embodiment (which may be simply referred to as the resource usage device 5) may be used to implement the Figure 3 and Figure 4 method technical solutions described in the embodiments shown above.

[0123] Specifically, in this embodiment, the resource usage device 5 may include: a sending module 51 for sending a first piece of information, where the first piece of information includes the feedback requirement of the V2X service; a receiving module 52 for receiving a second piece of information, where the second piece of information includes the transmission resources allocated for the V2X service; a transmission module 53 for using the transmission resources to transmit the data of the V2X service; wherein, when the feedback requirement of the V2X service is that feedback is needed, the transmission resources have corresponding feedback resources.

[0124] In one embodiment, the first piece of information may include the feedback requirements of multiple V2X services. Among them, the multiple V2X services may include a first V2X service and a second V2X service. The feedback requirement of the first V2X service may be that feedback is needed, and the feedback requirement of the second V2X service may be that feedback is not needed. The second piece of information may include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Among them, the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

[0125] In one embodiment, the transmission module 53 may include: a judgment sub-module 531 for judging whether the transmission resources have corresponding feedback resources according to the candidate time slot positions of the preset feedback resources, the time slot positions of the transmission resources indicated in the second piece of information, and a first time slot interval, where the first time slot interval is the time slot interval between the feedback resources and the corresponding transmission resources, and the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication; a determination sub-module 532 for determining the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service according to the judgment result; a first transmission sub-module 533 for using the transmission resources allocated for the first V2X service to transmit the data of the first V2X service; a second transmission sub-module 534 for using the transmission resources allocated for the second V2X service to transmit the data of the second V2X service.

[0126] Furthermore, the transmission module 53 may further include: a third transmission sub-module 535, after using the transmission resources allocated for the first V2X service to transmit the data of the first V2X service, if there are remaining resources in the transmission resources allocated for the first V2X service, then use the remaining resources to transmit the data of the second V2X service.

[0127] In one embodiment, the first information may include feedback requirements of multiple V2X services. Among them, the multiple V2X services may include a first V2X service and a second V2X service. The feedback requirement of the first V2X service may be that feedback is needed, and the feedback requirement of the second V2X service may be that feedback is not needed. The number of the second information may be multiple and each may include the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service.

[0128] In one embodiment, that the transmission resource has a corresponding feedback resource may mean that there is an available feedback resource in a time slot at a first time slot interval from the transmission resource, where the first time slot interval may be determined by configuration or pre-configuration, or may be obtained by dynamic indication.

[0129] In one embodiment, when the feedback requirement of the V2X service is that feedback is needed, the second information may further include the feedback resource corresponding to the transmission resource.

[0130] For more content about the working principle and working mode of the resource usage device 5, reference may be made to the relevant descriptions in the above Figure 3 and Figure 4 which will not be elaborated here.

[0131] In a typical application scenario, consider a UE supporting 5G V2X that uses mode 1 for data transmission. Refer to Figure 6 , UE61 is in the serving cell cell1 (under the jurisdiction of the serving base station 62, hereinafter simply referred to as base station 62), and has established an RRC connection to carry out data transmission services. cell1 is the primary cell of UE61, and UE61 receives system messages and paging messages from this cell. After a period of time, UE61 expects to carry out V2X services. UE61 can transmit V2X services to multiple targets, such as transmitting V2X service 1 to UE63, transmitting V2X services 2 and 3 to UE64, and transmitting V2X service 4 to UE65.

[0132] The identifiers of the destination receivers of different UEs may be different, and different V2X services may have the same or different Quality of Service (QoS) requirements. Different QoS requirements can be identified by parameters such as priority, transmission delay, and transmission bit error rate.

[0133] The UEs 63, 64, and 65 may be within the network coverage of cell1, or within the network coverage of an adjacent cell, or may be out of the network coverage (i.e., the serving cell cannot be detected). These UEs may be in the idle state or in the connected state (only within the cell coverage).

[0134] For different V2X services, the UE61 may set different feedback requirements. For example, V2X service 1, V2X service 2, and V2X service 3 require SL HARQ feedback (referred to as requiring feedback), while V2X service 4 does not require SL HARQ feedback (referred to as not requiring feedback).

[0135] Since the UE61 needs to send uplink data to cell1 and V2X data to other UEs in different time slots respectively, the UE61 needs to indicate to the base station 62 that it needs to carry out V2X services. At the same time, considering that the base station 62 may configure transmission resources in different time slots or different frequency domain positions for V2X services that require feedback and V2X services that do not require feedback, the UE61 needs to indicate to the base station 61 whether the V2X services to be carried out require feedback.

[0136] For example, the UE61 may indicate in the uplink signaling that the V2X service transmissions to the destination receivers of the UE63 and the UE64 require feedback, or indicate that the V2X service transmission to the destination receiver of the UE65 does not require feedback.

[0137] Further, in response to receiving the first information, the base station 62 can learn the feedback requirements of the V2X services of the UE61 to different destination receivers, so as to schedule appropriate transmission resources to ensure that the transmission resources allocated to the V2X services with the feedback requirement of requiring feedback have corresponding feedback resources.

[0138] Further, the base station 62 may send the allocated transmission resources to the UE61 in the form of the second information. In response to receiving the second information, the UE61 can use the transmission resources with corresponding feedback resources to transmit V2X data to the destination receivers of the UE63 and the UE64, and use the transmission resources without corresponding feedback resources to transmit V2X data to the destination receiver of the UE65.

[0139] Among them, the specific content that the first information and the second information may include can refer to the relevant descriptions in the above Figure 1 to Figure 5 and will not be elaborated here.

[0140] Furthermore, for V2X services that require feedback, if the feedback information received by UE61 is NACK, UE61 needs to retransmit the corresponding V2X data, and the retransmission resources are also allocated by the base station 62. Therefore, UE61 needs to notify the base station 62 of the feedback information through the Physical Uplink Control Channel (PUCCH) resources.

[0141] Thus, in response to receiving the first information sent by UE61, the base station 62 learns about the V2X services that require feedback. Then, while allocating transmission resources with corresponding feedback resources for this V2X service, the base station 62 can also configure PUCCH resources for UE61 to forward the feedback information.

[0142] For example, for the V2X service transmission to UE63, the base station 62 can configure dedicated PUCCH resources (including the frequency domain position and the symbol position occupied within the time slot) according to the destination receiver or LCH through RRC signaling. The base station 62 can also configure the time interval between the transmission resources and this PUCCH resource, or the time interval between the corresponding feedback resources and this PUCCH resource through RRC signaling. Thus, after receiving the feedback information of UE63, UE61 can send the feedback information to the base station 62 at the corresponding time slot position based on the time interval and the configuration of the PUCCH resources.

[0143] In a variation, UE61 can indicate whether feedback is required according to the LCH corresponding to different V2X services. For example, assume that V2X service 1 corresponds to LCH1, V2X service 2 corresponds to LCH2, V2X service 3 corresponds to LCH3, and V2X service 4 corresponds to LCH4. Then, UE61 can indicate in the first information that LCH1 and LCH2 require feedback, or indicate that LCH3 and LCH4 do not require feedback.

[0144] For UE64, the V2X services sent by UE61 have different feedback requirements (V2X service 2 requires feedback, while V2X service 3 does not require feedback).

[0145] In a scenario, UE61 can use a non - multiplexing mechanism to send the data of LCH2 and LCH3 to UE64 at different time slots. At this time, the base station 62 needs to allocate transmission resources with corresponding feedback resources and transmission resources without corresponding feedback resources for UE61 respectively.

[0146] In another scenario, UE61 can also use a multiplexing mechanism to send data of LCH2 and LCH3 to UE64. For example, for the transmission resources of a time slot, after UE61 determines that there is a corresponding feedback resource for the transmission resources and ensures the transmission of V2X data of LCH2 with priority, if the transmission resources are large enough to transmit some data, UE61 can also place (partial) data of LCH3 in the transmission resources and transmit them to UE46 together with the data of LCH2 through the transmission resources. Conversely, it is not allowed, that is, for the transmission resources without corresponding feedback resources, only LCH3 can use them.

[0147] As described above, by adopting the solution of this embodiment, for a connected UE, when it needs to transmit V2X services, it can indicate whether there is a feedback requirement for the V2X services to the base station through an uplink signaling.

[0148] Furthermore, the UE can set the feedback requirements according to different destination receivers, or can set the feedback requirements according to the LCH corresponding to the V2X services.

[0149] Furthermore, after receiving the uplink signaling of the UE, the base station can reasonably allocate transmission resources and allocate transmission resources with corresponding feedback resources for the V2X services with feedback requirements. Or it can reject some or all of the feedback requirements of the UE.

[0150] Furthermore, if the UE has V2X services with different feedback requirements for the same destination receiver, the UE can use the transmission resources with corresponding feedback resources for the V2X services without feedback requirements, but it is necessary to ensure the transmission of the V2X services with feedback requirements with priority.

[0151] Furthermore, during the handover process, the source base station can indicate the feedback requirements of the UE's V2X services to the target base station through handover signaling to ensure the continuity of the V2X services.

[0152] Furthermore, an embodiment of the present invention also discloses a storage medium, on which computer instructions are stored, and when the computer instructions are run by a processor, they execute the method technical solutions described in the above Figure 1 、 Figure 3 or Figure 4 shown embodiments. Preferably, the storage medium can include computer-readable storage media such as non-volatile memory or non-transitory memory. The storage medium can include ROM, RAM, magnetic disk or optical disk, etc.

[0153] Furthermore, an embodiment of the present invention also discloses a terminal, including a memory and a processor, where computer instructions capable of running on the processor are stored on the memory, and when the processor runs the computer instructions, it executes the aboveFigure 3 or Figure 4 the method technical solution described in the embodiments shown. Preferably, the terminal may be a User Equipment (UE).

[0154] Furthermore, an embodiment of the present invention also discloses a base station, including a memory and a processor, where a computer instruction capable of running on the processor is stored on the memory, and when the processor runs the computer instruction, it executes the above Figure 1 the method technical solution described in the embodiments shown. Preferably, the base station may be a gNB.

[0155] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be subject to the scope defined by the claims.

Claims

1. A resource allocation method, characterized in that, Including: Determine a transmission resource for which a corresponding feedback resource is allocated to a user equipment, where the transmission resource is used for transmitting V2X services; Generate and send a second message to the user equipment, where the second message includes the transmission resource, a PUCCH resource for forwarding feedback information, and a time interval, the feedback information is carried on the feedback resource, and the time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource and the PUCCH resource.

2. The resource allocation method according to claim 1, wherein The frequency domain position of the feedback resource is implicitly indicated by its corresponding transmission resource.

3. The resource allocation method according to claim 1, wherein Further including: Receive the feedback information on the PUCCH resource corresponding to the time interval.

4. The resource allocation method according to claim 1, wherein That the transmission resource has a corresponding feedback resource means that there is an available feedback resource in a time slot at a first time slot interval from the transmission resource, where the first time slot interval is determined by configuration or pre-configuration, or obtained by dynamic indication.

5. The resource allocation method according to claim 1, wherein The second message further includes: the feedback resource corresponding to the transmission resource.

6. The resource allocation method according to claim 1, wherein Before determining a transmission resource for which a corresponding feedback resource is allocated to a user equipment, further including: Receive a first message, where the first message includes the feedback requirement of the V2X service.

7. The resource allocation method according to claim 6, wherein The first message includes the feedback requirements of multiple V2X services, where the multiple V2X services include a first V2X service and a second V2X service, the feedback requirement of the first V2X service is to provide feedback, the feedback requirement of the second V2X service is not to provide feedback, the second message includes the transmission resource allocated for the first V2X service, and the transmission resource allocated for the second V2X service, where the transmission resource allocated for the second V2X service does not have a corresponding feedback resource.

8. The resource allocation method according to claim 1, wherein The PUCCH resource includes the frequency domain position corresponding to the PUCCH and the symbol positions occupied within a time slot.

9. A resource allocation device, characterized in that, Including: A determination module, configured to determine a transmission resource for which a corresponding feedback resource is allocated to a user equipment, where the transmission resource is used for transmitting V2X services; A first sending module, configured to generate and send a second message to the user equipment, where the second message includes the transmission resource, a PUCCH resource for forwarding feedback information, and a time interval, the feedback information is carried on the feedback resource, and the time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource and the PUCCH resource.

10. A resource usage method, characterized in that, Including: Receive a second message, where the second message includes the transmission resource allocated for the V2X service, a PUCCH resource for forwarding feedback information, and a time interval, the transmission resource has a corresponding feedback resource, the feedback information is carried on the feedback resource, and the time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource and the PUCCH resource; Use the transmission resource to transmit data of the V2X service.

11. The resource usage method according to claim 10, wherein Further including: Receive feedback information on the data on the feedback resource; Transmit the received feedback information on the PUCCH resource corresponding to the time interval.

12. The resource usage method according to claim 11, wherein Transmitting the received feedback information on the PUCCH resource corresponding to the time interval includes: When the feedback information is NACK, use the PUCCH resource corresponding to the time interval to transmit the feedback information.

13. The resource usage method according to claim 10, characterized in that, The PUCCH resource includes the frequency-domain position corresponding to the PUCCH and the symbol position occupied within the time slot.

14. The resource usage method according to claim 10, wherein The frequency-domain position of the feedback resource is implicitly indicated by the corresponding transmission resource.

15. The resource usage method according to claim 10, characterized in that, It further includes: Transmit a first message, where the first message includes the feedback requirement of the V2X service.

16. The resource usage method according to claim 15, characterized in that, The first message includes the feedback requirements of multiple V2X services. Among them, the multiple V2X services include a first V2X service and a second V2X service. The feedback requirement of the first V2X service is to require feedback, and the feedback requirement of the second V2X service is not to require feedback. The second message includes the transmission resources allocated for the first V2X service and the transmission resources allocated for the second V2X service. Among them, the transmission resources allocated for the second V2X service do not have corresponding feedback resources.

17. The resource usage method according to claim 10, characterized in that That the transmission resource has a corresponding feedback resource means that there is an available feedback resource in the time slot at a first time-slot interval from the transmission resource, where the first time-slot interval is determined by configuration or pre-configuration, or obtained through dynamic indication.

18. The resource usage method according to claim 10, wherein, The second message further includes: the feedback resource corresponding to the transmission resource.

19. A resource usage device for V2X services, characterized in that, It includes: A receiving module, configured to receive a second message, where the second message includes the transmission resources allocated for the V2X service, the PUCCH resource for forwarding feedback information, and the time interval. The transmission resource has a corresponding feedback resource, and the feedback information is carried on the feedback resource. The time interval is the time interval between the transmission resource and the PUCCH resource, or the time interval between the feedback resource and the PUCCH resource; A transmission module, configured to transmit the data of the V2X service using the transmission resource.

20. A method for sending feedback information, characterized in that, It includes: Receive the feedback information of other user equipment; Based on the time interval and the PUCCH resource configured by the base station, transmit the feedback information to the base station through the PUCCH resource at the corresponding time-slot position, where the time interval is the time interval between the transmission resource and this PUCCH resource, or the time interval between the feedback resource corresponding to the transmission resource and this PUCCH resource, and the transmission resource is used to transmit the V2X service.

21. The sending method according to claim 20, wherein The feedback information is the feedback for the data transmitted using the transmission resource, and the feedback information is transmitted on the feedback resource.

22. A sending device for feedback information, characterized in that, It includes: A receiving module, configured to receive the feedback information of other user equipment; A sending module, configured to send the feedback information to a base station through the PUCCH resource at a corresponding time slot position based on a time interval configured by the base station and the PUCCH resource, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource, and the transmission resource is used for transmitting V2X services.

23. A method for receiving feedback information, characterized in that, Comprising: Receiving, based on a configured time interval and a PUCCH resource, feedback information sent by a user equipment through the PUCCH resource at a corresponding time slot position, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource, and the transmission resource is used for transmitting V2X services.

24. The receiving method according to claim 23, wherein The feedback information is feedback from other user equipments on data transmitted by the user equipment using the transmission resource, and the feedback information is transmitted on the feedback resource.

25. A receiving device for feedback information, characterized in that Comprising: A receiving module, configured to receive, based on a configured time interval and a PUCCH resource, feedback information sent by a user equipment through the PUCCH resource at a corresponding time slot position, where the time interval is a time interval between a transmission resource and the PUCCH resource, or a time interval between a feedback resource corresponding to the transmission resource and the PUCCH resource, and the transmission resource is used for transmitting V2X services.

26. A storage medium having computer instructions stored thereon, characterized in that, When the computer instructions are run by a processor, the steps of the method according to any one of claims 1 to 8 or any one of claims 10 to 18 or claim 20 or 21 or 23 or 24 are executed.

27. A base station, comprising a memory and a processor, wherein computer instructions capable of running on the processor are stored on the memory, characterized in that, When the processor runs the computer instructions, the steps of the method according to any one of claims 1 to 8 or claim 23 or 24 are executed.

28. A terminal, comprising a memory and a processor, wherein computer instructions capable of running on the processor are stored on the memory, characterized in that, When the processor runs the computer instructions, the steps of the method according to any one of claims 10 to 18 or claim 20 or 21 are executed.

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