Various examples and schemes pertaining to uplink (UL) transmission timing for non-terrestrial networking (NTN) are described. An apparatus receives, from a network, downlink control information (DCI) indicating an NTN offset for a scheduling delay. Accordingly, the apparatus performs one or more UL transmissions to a satellite with the scheduling delay which accounts for the NTN offset.

A method, performed by a user equipment (UE), of transmitting uplink data is provided. The method includes receiving, from a base station, configuration information for an uplink resource; determining a Hybrid Automatic Repeat Request (HARQ) process based on the configuration information; starting a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) when uplink data corresponding to the HARQ process is transmitted; restarting the CGRT when the uplink data corresponding to the HARQ process is retransmitted; receiving, from the base station, downlink feedback information (DFI); and stopping the CGT and the CGRT based on the DFI indicating whether the base station received the uplink data.

Provided in the present disclosure are a method and apparatus for enhancing an RLC AM under exceeding maximum retransmissions and dual-no conditions. The method includes: when the number of retransmissions of the first message that has not been received by a receiving end reaches a preset threshold value, reconstructing the first message into a short message, and sending the short message to the receiving end; and when a polling timer expires and a dual-no condition is met, sending, to the receiving end, a second message having the minimum message SN in a set of messages for which positive acknowledgments of the receiving end have not been received. The dual-no condition is that no message in the sending buffer and the retransmission buffer can be sent at the current moment, and a new message cannot be sent due to no space in a sending window.

Provided are a method and apparatus for controlling sidelink communication. The method for performing, by a terminal, sidelink communication, may include the steps of: for a sidelink HARQ operation, receiving, from a base station, sidelink discontinuous HARQ configuration information used for monitoring a physical downlink control channel (PDCCH); transmitting sidelink data; and monitoring, in a PDCCH discontinuous monitoring section, the PDCCH configured on the basis of discontinuous reception (DRX) parameters included in the sidelink discontinuous HARQ configuration information.

The present disclosure provides a method and device for sidelink wireless communications. A first node transmits a first signaling and a first radio signal; monitors a second signaling; maintains a first counter according to whether the second signaling is received; and as a response to a value of the first counter reaching a first threshold, determines an RLF for a second node; the behavior of maintaining a first counter according to whether the second signaling is received comprises: when the second signaling is received, updating the value of the first counter to an initial value; when the second signaling is not received and a time for transmitting the first signaling belongs to an active estimation time, updates the value of the first counter by 1. The application reduces the risk of triggering unnecessary Radio Link Failure (RLF).

An HARQ process management method and apparatus, a terminal, and a storage medium are provided. The HARQ process management method includes: receiving SCI; determining whether the SCI indicates a HARQ process identity to obtain a first determination result and determining a HARQ process associated with the SCI based on the first determination result.

Systems and methods are provided for sending and receiving remote procedure calls (RPCs). Based on a message in a first RPC, a second set of RPCs are created by one or more computing devices, where each of the second set of RPCs includes a portion of the message in the first RPC. The message in the first RPC is replaced with a reference to each RPC of the second set of RPCs. The one or more computing devices send the first RPC with the references, and also send the second set of RPCs.

Systems and methods are provided for sending and receiving remote procedure calls (RPCs). Based on a message in a first RPC, a second set of RPCs are created by one or more computing devices, where each of the second set of RPCs includes a portion of the message in the first RPC. The message in the first RPC is replaced with a reference to each RPC of the second set of RPCs. The one or more computing devices send the first RPC with the references, and also send the second set of RPCs.

Certain aspects of the present disclosure provide techniques for handling acknowledgement and retransmission timers during sidelink discontinuous reception (DRX) communication. An example method by a transmitter user equipment (UE) generally includes transmitting a first repetition of a physical sidelink shared channel (PSSCH) to a receiver UE prior to entering an inactive state, while the transmitter UE is operating in a sidelink discontinuous reception (DRX) mode; returning to an active state to monitor for acknowledgment feedback from the receiver UE, wherein the return is based on a first timer relative to an end of the first repetition of the PSSCH; remaining in the active state for a duration defined by a second timer; and taking one or more actions depending on whether the transmitter UE receives acknowledgment feedback during the duration indicating failed reception of the first repetition of the PSSCH by the receiver UE.

A method for using configured grant (CG) resources, a terminal device, and a network device are provided in implementations of the disclosure. The method for using CG resources includes the following. In response to reception of downlink feedback information (DFI), for a type-2 CG resource, a terminal device uses the DFI.