This application relates to the intelligent cockpit field and provides a communication method and apparatus, to reduce communication interference between devices. In this application, if priorities of one or more second devices are lower than a priority of a first device, the first device sends second information to the one or more second devices, where the second information includes a communication resource allocated by the first device to the one or more second devices and the priority of the first device. When the priorities of the one or more second devices are lower than the priority of the first device, the first device may allocate the communication resource to the one or more second devices. This can avoid communication interference between different communication domains that is caused by a conflict between communication resources, and improve communication performance of the devices.

Embodiments of this application provide a device-to-device based resource determining method and device, which may be applied to a D2D system (for example, a system such as an internet of vehicles, V2X, or V2V). The method includes: receiving first information sent by a first terminal device, where the first information indicates a second terminal device to send assistance information; and sending the assistance information to the first terminal device, where the assistance information is used to assist the first terminal device in selecting a resource for data transmission. The second terminal device assists the first terminal device in determining the resource for data transmission, instead of completely determining, by a terminal device that sends data, the resource for data transmission.

The present disclosure relates to the technical field of communications, and disclosed are a resource reservation method and apparatus, a device and a storage medium. The method comprises: once LBT is successful, sending sidelink control information, wherein the sidelink control information is used to indicate N transmission resources reserved for a first transmission block, and the upper limit value of N is an integer greater than 3. Provided in the embodiments of the present application is a method for indicating transmission resources reserved by a terminal device when performing sidelink transmission on the basis of an unlicensed spectrum. Moreover, the sidelink control information sent by the terminal device may indicate more than three transmission resources, so that the reserved transmission resources may be indicated as much as possible in the sidelink control information.

Disclosed are techniques for wireless communication. In an aspect, a position estimation entity configures a sidelink anchor group with sidelink anchor(s), to which respective sidelink PRS pre-configuration(s) are sent. A UE transmits a request to schedule an on-demand sidelink PRS position estimation session of the UE. The position estimation entity provides the UE with assistance data associated with the sidelink anchor group for the on-demand sidelink PRS position estimation session. The UE sends the sidelink anchor group a sidelink PRS trigger to perform a sidelink PRS exchange with some or all of the sidelink anchor group in accordance with the respective sidelink PRS pre-configuration(s).

Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may be scheduled by a base station for full-duplex sidelink transmissions. A first UE may receive, from a base station, a first sidelink grant indicating a first set of resources and a second set of resources. The first set of resources may at least partially overlap in time with the second set of resources. Upon receiving the first sidelink, the first UE may transmit, to a second wireless device, a second sidelink grant indicating the second set of resources. The first UE may transmit a first data message to the second UE over the first set of resources and receive a second data message from the second device over the second set of resources.

A method by which a first device performs sidelink communication is provided. The method comprises the steps of: receiving, from a base station, a sidelink grant associated with a first retransmission resource and an initial transmission resource of a transport block; transmitting, to a second device, a PSCCH and a PSSCH associated with the PSCCH, on the basis of the initial transmission resource; determining a PSFCH resource for receiving a PSFCH from the second device, on the basis of the index of a slot and the index of a subchannel associated with the PSSCH; receiving, from the second device, the PSFCH on a first PSSCH, on the basis of the PSFCH resource; comparing a time interval between the PSFCH resource and the first retransmission resource with a minimum processing time required between the reception of the PSFCH and retransmission of the transport block.

The present disclosure provides a method for sidelink communication. The method includes: a first terminal device acquires a first sidelink resource reserved for a second terminal device; and the first terminal device sends information of the first sidelink resource to the second terminal device to enable the second terminal device to acquire the first sidelink resource according to the information of the first sidelink resource. In the method of the embodiment of the present disclosure, the first terminal device can acquire the first sidelink resource reserved for the second terminal device according to resource occupation of a region where the first terminal device is located, and the second terminal device sends data according to the first sidelink resource reserved for it.

According to the present invention, provided is a method performed by user equipment, and the method is characterized by including: obtaining indication information related to resource allocation; and determining N.sub.indicated.sup.res time/frequency resources according to the indication information, wherein N.sub.indicated.sup.res is a positive integer greater than or equal to 1, the indication information related to resource allocation includes information indicated in sidelink control information (SCI), and the information indicated in the SCI includes a time resource allocation indication value TRIV and/or a frequency resource allocation indication value FRIV.

Disclosed are an information sending method, information receiving method, apparatus, and device. The information sending method includes: receiving a physical sidelink feedback channel (PSFCH); determining a first duration; and sending a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) not earlier than a first moment, where the first moment is a moment the first duration after an end moment of receiving the PSFCH. A terminal device does not send the PUCCH or the PUSCH before the moment the first duration after the end moment of receiving the PSFCH. Because the terminal device can determine the first duration, it is ensured that the terminal device may have sufficient time to process the PUCCH or the PUSCH. The PUCCH or the PUSCH may be used to carry sidelink hybrid automatic repeat request (HARQ) information, and the HARQ information may be generated based on the received PSFCH.

Embodiments of this application provide a resource indication information transmission method, a device, and a system, which are applicable to fields such as internet of vehicles, intelligent connected vehicle, assisted driving, and intelligent driving. In an example method, a first terminal device determines X sets of candidate single-time-unit resources based on a number of sub-channels to be used by a second terminal device for physical sidelink shared channel (PSSCH) and/or physical sidelink control channel (PSCCH) transmission, and indicates, to the second terminal device, K candidate single-time-unit resources whose time domain locations are in a first time window in the X sets of candidate single-time-unit resources. The second terminal device determines a first time-frequency resource based on the K candidate single-time-unit resources. The first time window is a time window included in a selection window corresponding to at least one of the X sets of candidate single-time-unit resources.