The embodiments of the present disclosure provide a data retransmission method and an access point device, capable of achieving downlink data retransmission in a multi-AP cooperation scenario, which can reduce the number of downlink data retransmissions and transmission delay, thereby improving user experience. The data retransmission method includes: transmitting, by a first access point device, first request information when the first access point device fails to transmit a first data frame to a station device, the first request information requesting a second access point device to retransmit the first data frame, and the first access point device and the second access point device belonging to one operation set.

A joint transmission method, a terminal device, a target network device, and a cooperative network device. The method comprises: a terminal device sends a first data frame to a target network device and at least one cooperative network device, wherein the cooperative network device is used for joint transmission of the first data frame; the terminal device determines, according to feedback of the target network device and/or feedback of the cooperative network device, whether to retransmit the first data frame.

In certain aspects, a method for wireless communication at a user equipment (UE) includes attempting to receive, from a first base station, data via a first communication link, generating a radio link control (RLC) status report indicating a status of the data at the UE, and transmitting, to a second base station, the RLC status report via a second communication link. The UE may be simultaneously connected to the first base station and the second base station using dual connectivity. In one example, the first base station may be configured as a secondary cell group (SCG) and the second base station may be configured as a master cell group (MCG). In one example, the first communication link may be a New Radio (NR) link and the second communication link may be a Long-Term Evolution (LTE) link.

Systems and methods for broadcasting wireless data via one or more retransmission schemes to increase the packet reception in a wireless system. One or more devices of the system are configured to listen for an initial data packet from a source device. Should one or more devices successfully receive the initial packet, each device that received the packet can unconditionally retransmit a copy of the payload of the initial packet such that any device that failed to receive the initial packet payload has an opportunity to receive it during the respective retransmissions. Similarly, each device of the system can send acknowledgements to the other system devices that indicate whether they received the initial packet. Should one or more of the devices successfully receive the initial packet, the devices can conditionally retransmit a copy of the missing payload when one or more devices indicates they have failed to receive it.

There is disclosed a node for a wireless communication system. The node may comprise a receiver for receiving a data packet, a status report and an acknowledgement (ACK), a transmitter for transmitting the packet, the status reports and the ACK and a processor for selectively operating in a first mode and a second mode, for determining a mode switching criterion.

Embodiments of this application disclose a signal transcoding method performed by an electronic device. The method includes: acquiring an encoding result of an i.sup.th signal frame and encoding results respectively corresponding to first n signal frames of the i.sup.th signal frame; generating forward error correction (FEC) encoding results respectively corresponding to the first n signal frames according to the encoding results respectively corresponding to the first n signal frames; and synthesizing the encoding result corresponding to the i.sup.th signal frame and the FEC encoding results respectively corresponding to the first n signal frames to generate an encoded frame corresponding to the i.sup.th signal frame, the encoded frame comprising a flag bit for indicating a value of n. According to this application, a quantity of FEC encoded frames included in an encoded frame can be flexibly adjusted to improve the reliability of data transmission in a poor network state.

This disclosure relates to encoding and decoding methods and apparatuses. The method may include encoding an i.sup.th signal frame, to obtain an encoded result of the i.sup.th signal frame. The method may further include performing forward error correction encoding on first n signal frames, to obtain forward error correction encoded results corresponding to the first n signal frames. The first n signal frames may be signal frames located before the i.sup.th signal frame. The method may further include synthesizing the encoded result of the i.sup.th signal frame and the forward error correction encoded results corresponding to the first n signal frames, to obtain an i.sup.th encoded frame corresponding to the i.sup.th signal frame. The i.sup.th encoded frame may comprise a flag bit, the flag bit may be for indicating a number n, and n may be a positive integer greater than or equal to 2.

There is provided a solution for performing packet duplication in a wireless network. According to an aspect, a method comprises: receiving, by a terminal device from a first access node, a first message comprising at least one information element indicating activation of at least one transmission leg of a first subset of transmission legs, hosted by the first access node, to deliver a duplicate of a data packet between the terminal device and the first access node, receiving, by the terminal device from a second access node, a second message comprising at least one information element indicating activation of at least one transmission leg of a second subset of transmission legs, hosted by the second access node, to deliver a duplicate of a data packet between the terminal device and the second access node, transmitting, by the terminal device, to the first access node at least one duplicate of the data packet over the at least one transmission leg indicated in the first message, and transmitting to the second access node at least one duplicate of the data packet over the at least one transmission leg indicated in the second message.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE).

An embodiment of the present application provides a method for information transmission and device. The method is applied to a first node. The method includes: obtaining, from a second node, a latency requirement of information to be forwarded and the information to be forwarded; and forwarding, to a third node, the information to be forwarded according to the latency requirement of information to be forwarded. In the present application the first node forwards the information to be forwarded to the third node according to the latency requirement of the information to be forwarded, thereby satisfying the needs of services with higher latency requirements.

Provided is a method and device for transmitting a PUSCH. The method for transmitting the PUSCH includes: performing a predetermined measurement; determining parameters for transmitting the PUSCH according to a measurement result of the predetermined measurement; and transmitting the PUSCH based on the parameters for transmitting the PUSCH, thus adjustment of the PUSCH transmission parameters and improved performance of the PUSCH can be achieved.

Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a first downlink grant scheduling a first downlink resource for a delay-sensitive packet. The first wireless device may monitor the first downlink resource for the delay-sensitive packet from the second wireless device and identify a first routing identifier indicating at least a third wireless device in the first downlink grant. The first wireless device may transmit, to the third wireless device, a second downlink grant scheduling a second downlink resource and including a second routing identifier based on the first routing identifier. In some cases, the first wireless node may send a scheduling grant to the third wireless device for transmission of a delay-sensitive packet for a next hop before completion of processing of the packet received from the second wireless device.