Methods for determining a Sidelink (SL) relay node, an SL relay node, and a terminal are provided. A method for determining an SL relay node is performed by a first SL relay node and includes: obtaining SL connection request information of a first terminal; and sending SL connection forwarding information in a case that the first SL relay node meets a first preset condition. The SL connection forwarding information includes the SL connection request information.

The present disclosure relates to a resource allocation method and a terminal. The resource allocation method includes: transmitting, by a first terminal, first information to a second terminal. The first information instructs the second terminal to allocate a sidelink transmission resource to the first terminal. According to an embodiment of the present disclosure, the sidelink transmission resource is allocated by the terminal to reduce interference in sidelink transmissions of individual terminals. In addition, compared with applying for a transmission resource from a network, the method can reduce delay, shorten allocation time, and improve allocation efficiency.

A user equipment (UE) may sense a first transmission by a first sidelink UE and a second transmission by a second sidelink UE and send a conflict indication to at least one of the first or second sidelink UEs in response to identifying a collision between the first and second transmissions, or identifying a prospective collision based on a prospective use of respective first and second resources identified in the respective first and second transmissions. A collision or prospective collision may be detected by detecting a complete or partial overlap of the first and second transmissions or of the prospective first and second resources identified in the transmissions, or by determining that any portions of the first resource and the second resource prospectively occupy a slot common to the first and second resources, and the first sidelink UE and the second sidelink UE prospectively operate in a half-duplex mode.

Disclosed is a method, performed by a terminal, that includes transmitting positioning capability information of the terminal to at least one of a base station or another terminal, receiving positioning configuration information from at least one of the base station, the other terminal or a location server connected with at least one of the base station or the other terminal, receiving a sidelink-positioning reference signal (S-PRS) based on the positioning configuration information, and transmitting positioning information based on the S-PRS.

Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may perform uplink reference signal bundling for access link communications and transmit sidelink communications using time or frequency division multiplexed resources. The UE may determine to drop or to transmit a sidelink communication based on a relationship with multiple instances of an uplink reference signal that are to maintain phase continuity. The UE may drop a sidelink communication when a time duration between two instances of the uplink reference signal is less than or equal to a time threshold value, and may transmit the sidelink communication when the time duration exceeds the time threshold value. In frequency division multiplexed cases, the UE may set a transmission power for each instance of the uplink reference signal, and the sidelink communication may use a remaining amount of power.

Apparatus, methods, and computer-readable media for facilitating opportunistic CSI for sidelink communication are disclosed herein. An example method for wireless communication at a responding sidelink UE includes receiving, from an initiating sidelink UE, a request to provide CSI feedback to the initiating sidelink UE, the request excluding a CSI-RS. The example method also includes decoding a transmission from the initiating sidelink UE to a neighboring sidelink UE, the transmission including a CSI feedback trigger. The example method also includes transmitting, to the initiating sidelink UE, a CSI report based on the transmission.

The apparatus may include a base station and UEs configured to communicate via sidelink communication. The UEs may select transmission resources from a resource pool including first periodic resources for PSFCH and second periodic resources for SL-RS, and rate-match the PSSCH around at least one of the first period resources or the second period resources. The second periodic resources may be shifted in time or canceled based on the first periodic resources. The base station may configure the UEs based on the UEs' capabilities to support the SL-RS and rate-matching the PSSCH around the multiplexed SL-RS and PSFCH.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one of a transmission profile, of an application executing on the UE, that indicates whether sidelink discontinuous reception (DRX) is required, or a sidelink communication that indicates whether sidelink DRX is supported. The UE may communicate with one or more other UEs in accordance with a configuration for sidelink DRX, or with sidelink DRX disabled, based at least in part on the transmission profile or the sidelink communication. Numerous other aspects are described.

Disclosed are a data transmission method and apparatus, and a computer storage medium. The method comprises: a first terminal selects a target channel from N channels based on a first reference signal received on the N channels; the first terminal transmits data or signaling to a second terminal on the target channel.

Disclosed are a data transmission method and apparatus, and a computer storage medium. The method comprises: a first terminal selects a target channel from N channels based on a first reference signal received on the N channels; the first terminal transmits data or signaling to a second terminal on the target channel.