Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting (Tx) user equipment (UE) may perform, to a receiving (Rx) UE, a first sidelink transmission in an on duration of a sidelink discontinuous reception (DRX) cycle associated with a sidelink DRX configuration. The Tx may activate a sidelink DRX timer based at least in part on the sidelink DRX configuration, wherein the sidelink DRX configuration is associated with a destination identifier (ID) and one or more source IDs are associated with the destination ID, and wherein the sidelink DRX timer is operated per a pair of source ID and destination ID. Numerous other aspects are described.

A method and device for processing data are provided. The method comprises: a terminal device controlling the current state of a copied data transfer function according to first indication information, wherein the first indication information is used for indicating whether the copied data transfer function is enabled; and the terminal device processing, according to the current state of the copy data transfer function, each RLC service data unit (SDU) in a first radio link control (RLC) cache and a second RLC cache, wherein the first RLC cache corresponds to a first RLC entity, and the second RLC cache corresponds to a second RLC entity.

The present disclosure discloses a data transmission method, comprising: a terminal device determines, according to the states of a first timer and a second timer corresponding to a hybrid automatic repeat request (HARQ) process, whether the HARQ process corresponding to a first configuration authorization resource is available for transmitting data to be transmitted; during the operation of the first timer, the terminal device does not perform a new transmission on the HARQ process; and during the operation of the second timer, the terminal device does not perform retransmission on the HARQ process. The present disclosure further discloses a terminal device and a storage medium.

A method and apparatus for dynamic configuration of a maximum number of sidelink retransmissions for a data unit in a wireless communication system is provided. A first wireless device in sidelink receives, from a network, information related to a first retransmission number for a first logical channel and a second retransmission number for a second logical channel. The first wireless device determines a retransmission number of a data unit among the first retransmission number and the second retransmission number, and performs sidelink transmission of the data unit to a second wireless device based on the retransmission number of the data unit.

A method for uplink transmission performed by a UE is provided. The method includes: receiving a first configured grant configuration that allocates a first PUSCH duration; receiving a second configured grant configuration that allocates a second PUSCH duration, wherein the second PUSCH duration overlaps with the first PUSCH duration; obtaining a first HARQ process ID for the first PUSCH duration, then determining whether a first configured grant timer associated with the first HARQ process ID is running; obtaining a second HARQ process ID for the second PUSCH duration, then determining whether a second configured grant timer associated with the second HARQ process ID is running; and selecting one of the first PUSCH duration and the second PUSCH duration for an uplink transmission based on whether the first configured grant timer is running and whether the second configured grant timer is running.

Certain aspects provide a method for wireless communication by a user equipment (UE). The method generally includes determining a configuration associated with sidelink for at least one communication; monitoring for at least one SCI after entering a sidelink discontinuous reception (DRX) on phase based on the configuration; receiving, from one or more other UEs, the at least one SCI during the sidelink DRX on phase for at least one communication; and determining an extension to the sidelink DRX on phase based on the at least one SCI scheduling at least one first resource for one or more transmissions.

Methods, systems, and devices for wireless communications are described in which a base station may configure a user equipment (UE) with a low latency mode indication that indicates one or more different retransmission timelines or repetition techniques relative to communications that are not associated with the low latency mode indication. The base station may provide the low latency mode indication in downlink control information (DCI) that may include a resource grant for uplink resources for an uplink communication, such as for a UE transmission of pose information of an extended reality (XR) application. The low latency mode indication may signal that no retransmissions of the uplink communication are to be transmitted, that a different retransmission timeline is enabled for low latency mode communications, that retransmissions may happen based on a particular timeline that is determined according to one or more timers, or any combinations thereof.

A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) and a User Equipment (UE) in a Long Term Evolution (LTE) system supporting multiple carriers. The method includes starting a first TAT of a first group including the primary cell, starting a second TAT when Timing Advance (TA) information on a second group not including the primary cell is received; and determining transmission of at least one of a Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), a physical uplink control channel, and a sounding reference signal according to a start and an expiration of at least one of the first and second TATs.

A method, an apparatus, and a processor-readable storage medium for wireless communication are provided. A transmitter transmits data packets to a receiver, encodes the data packets to generate parity packets, stores the parity packets in a retransmission buffer, receives information from the receiver indicating that a data packet was not correctly decoded, and transmits to the receiver the parity packets stored in the retransmission buffer for recovering the data packet not correctly decoded without retransmitting the data packet not correctly decoded. The transmitter may further retransmit to the receiver the parity packets. The transmitted data packets may be encoded at a medium access control (MAC) layer of the transmitter. The retransmission buffer may be located at a radio link control (RLC) layer or a packet data convergence protocol (PDCP) layer of the transmitter. A reordering buffer at the receiver may be located at the RLC layer or PDCP layer.

A method in a user equipment (110) comprises receiving (604) a grant (305, 405, 505), the grant scheduling one or more dynamically-delayed transmissions (310A-C, 410A-C, 510A-C) for the user equipment. The method comprises in response to receiving the grant, starting (608) a timer associated with dynamically-delayed scheduling, wherein at least one of a start time of the timer and a duration of the timer is configured such that the user equipment is active when an acknowledgement of the one or more dynamically-delayed transmissions is expected to be received by the user equipment.