Certain aspects of the present disclosure provide techniques for processing semi-persistent scheduling (SPS) transmissions activated with downlink control information (DCI) transmissions in a system with multiple transmitter receiver points (TRPs).

Aspects presented herein may enable a sidelink device to report or to receive HARQ feedback for sidelink channels based on a long PSFCH format. In one aspect, an apparatus transmits, to a second UE, an indication to provide HARQ feedback for at least one sidelink channel. The apparatus transmits, to the second UE, the at least one sidelink channel. The apparatus receives, from the second UE, an ACK or a NACK for the at least one sidelink channel via a PSFCH, the PSFCH including a long PSFCH format and associated with a sidelink resource pool.

The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as Long-Term Evolution (LTE). The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, and the like, on the basis of 5G communication technologies and IoT-related technologies. In addition, an operation method of a terminal in a wireless communication system may comprise the steps of: determining service information required by a V2X application and determining a V2X transmission mode; determining QoS information of a service required by the V2X application; obtaining sidelink radio bearer configuration information corresponding to the QoS information; and, using the obtained sidelink radio bearer configuration information, transmitting and receiving V2X packets by means of a device-to-device communication method.

An information transmission method and a terminal are provided. The method includes: transmitting first sidelink control information SCI, second SCI, and sidelink feedback control information SFCI according to a resource mapping pattern, where the resource mapping pattern is used to indicate transmission resources of the SFCI and a physical sidelink shared channel PSSCH jointly scheduled by the first SCI and the second SCI.

The present disclosure discloses a feedback information transmission method and apparatus. The feedback information transmission method is applied to a receive terminal and includes: obtaining information about a feedback channel format, and generating a feedback channel according to the information about the feedback channel format, where the feedback channel format employs a sequence form; and sending feedback information to a transmit terminal through the feedback channel.

Proposed is a method for a first device performing wireless communication. The method may comprise the steps of: determining a first time domain and a second time domain with respect to a physical sidelink feedback channel (PSFCH) resource; performing sidelink data transmission to a second device through a resource on the first time domain; receiving, from the second device, hybrid automatic repeat request (HARQ) feedback associated with the sidelink data transmission; and on the basis of the HARQ feedback, performing sidelink data retransmission to the second device through a resource on the second time domain. For example, the first time domain may precede the PSFCH resource. For example, the second time domain may follow the PSFCH resource.

Apparatus, methods, and computer-readable media for facilitating relay of superpositioned sidelink and uplink transmission are disclosed herein. An example method for wireless communication at a first communication device includes receiving, from a UE, a MUST transmission including a base layer and an enhancement layer, the base layer comprising a first message for a second communication device and the enhancement layer comprising a second message for the first communication device. The example method also includes decoding the base layer of the MUST transmission to obtain the first message. Additionally, the example method includes receiving a feedback message from the second communication device indicating that the second communication device did not successfully receive the first message. The example method also includes retransmitting the first message to the second communication device in response to the feedback message from the second communication device.

The present disclosure relates to a technique for a sensor network, machine to machine (M2M) communication, machine-type communication (MTC) and the Internet of things (IoT). The present disclosure can be utilized in intelligent services (smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail business, security- and safety-related services, etc.) based on the technique. According to an embodiment of the present disclosure, provided is a method for a sidelink transmission UE in a communication system. The method comprises the steps of: receiving, from a base station, configuration information regarding a sidelink logical channel, the configuration information comprising information indicating to use hybrid automatic repeat request (HARQ) feedback-based retransmission and blind retransmission for the sidelink logical channel; when a medium access control (MAC) protocol data unit (PDU) to be transmitted is associated with the sidelink logical channel, determining any one of the HARQ feedback-based retransmission and the blind retransmission as a retransmission mode for the MAC PDU; verifying whether to retransmit the MAC PDU after transmitting the MAC PDU according to the retransmission mode; when it is verified to retransmit the MAC PDU, verifying whether to change the retransmission mode, on the basis of the configuration information; and when it is verified to change the retransmission mode, transmitting the MAC PDU, on the basis of the changed retransmission mode.

An information transmission method includes: transmitting first sidelink information and first target information on a target resource, or prohibiting transmission of the first sidelink information and the first target information on a same transmission resource. The first sidelink information is sidelink information corresponding to sidelink transmission between the first terminal device and a second terminal device, the first target information includes uplink information or second sidelink information, and the second sidelink information is sidelink information corresponding to sidelink transmission between the first terminal device and a control node.

Embodiments of this disclosure provide a sidelink information transmission method, a terminal, and a control node. The method includes: determining a target resource based on a target resource configuration; and sending target sidelink information on the target resource, where the target sidelink information is first sidelink information corresponding to a first configured sidelink grant, or the target sidelink information is multiplexed information of the first sidelink information and first information, where the first information is sidelink information corresponding to other scheduling than the first configured sidelink grant.