Provided are a method and device for sharing resources between stations in a Wireless Local Area Network (WLAN). A primary node receives a radio frame sent by a secondary node, the secondary node being a secondary node that gains a Transmission Opportunity (TXOP), and Uplink Multi-User (UL MU) shared information is carried in the radio frame; and the primary node sends a feedback frame to the secondary node in response to the radio frame, the feedback frame carrying multi-user information of shared secondary node(s), and the shared secondary node(s) being one or more secondary nodes that perform UL MU shared transmission with the secondary node which gains a TXOP.

A method includes: receiving, a target serial number transmitted by a second access network device, where the target serial number is obtained based on a first serial number, the first serial number is a serial number of a first RLC SDU successfully received by the second access network device, the first access network device, the second access network device, and a terminal device each include an RLC entity of a split bearer, a transmission mode of the split bearer is duplicate transmission, and the RLC entities of the split bearer are in an acknowledged mode AM; obtaining a second serial number based on the target serial number, where the second serial number is a serial number of a second RLC SDU, and the first RLC SDU is the same as the second RLC SDU; and marking the second serial number as a successfully received state.

The present disclosure relates to an unmanned aerial vehicle (UAV), a terrestrial station thereof and a data transmission method. A data transmission method is applied to a terrestrial station and the method includes: receiving data packets continuously sent by a UAV; detecting continuity of data packet sequence numbers of the received data packets; and sending a data packet retransmission request to the UAV according to a lost data packet sequence number if it is detected that the data packet sequence numbers corresponding to the data packets are discontinuous. Adopting the UAV, the terrestrial station and the data transmission method that are provided in the present disclosure can effectively improve utilization of an uplink transmission link.

A wireless device receives one or more downlink control information. The one or more downlink control information indicate negative acknowledgements. The negative acknowledgements are for one or more first code block groups of a first transport block corresponding to a first hybrid automatic repeat request (HARQ) process and one or more second code block groups of a second transport block corresponding to a second HARQ process. The wireless device determines that a size of a first configured grant is sufficient to retransmit the one or more first code block groups and the one or more second code block groups. Based on the determining, the wireless device retransmits, via radio resources of the first configured grant, the one or more first code block groups and the one or more second code block groups.

A method for managing a communication between a base station and a terminal. The terminal is associated with at least one memory having at least two storage areas. The terminal implements: at least one step of storing, in one of the storage areas, a state representative of a transmission, by the base station, of at least one current data packet and control information associated with the current data packet, called current transmission, the storage area being identified by a storage area indicator borne by the control information associated with the current data packet; and transmission, to the base station, of all states stored in the storage areas, when the terminal is authorized to emit.

Embodiments of the present disclosure relate to method, device and computer readable medium for hybrid automatic repeat request (HARQ) feedback. The method comprises receiving, from a network device, first control information at least comprising first channel indices for a first group of data channels and second channel indices for a second group of data channels, the first group of the data channels being at least part of a first set of data channels scheduled for data transmission from the network device to the terminal device and the second group of the data channels being at least part of a second set of data channels scheduled for the data transmission. The method also comprises generating, based on the first control information, feedback information indicating first reception states of data on the first group of data channels in association with the first channel indices and second reception states of data on the second group of data channels in association with the second channel indices. The method further comprises transmitting the feedback information via an uplink channel to the network device. In this way, for the case that the HARQ ACK/NACK feedback related to multiple PDSCH groups in a same PUCCH, the miss detection of DCI in multiple PDSCH groups may reflect in the bit sequence for the HARQ ACK/NACK feedback, so that the network device may be aware of the miss detection and determine the data to be retransmitted.

A method of receipt status reporting in a communication device, comprising configuring (S1) said communication device for periodic receipt status reporting by associating a first status report type with a value of a first reporting periodicity parameter and associating a second status report type with a value of second reporting periodicity parameter, said first status report type being different from said second status report type and said first reporting periodicity parameter being different from said second reporting periodicity parameter, and periodically (S2) sending receipt status reports of said first type according to said associated value of said first reporting periodicity parameter and receipt status reports of said second type according to said associated value of said second reporting periodicity parameter.

Examples in this application provide a communication method, apparatus, device, and system, and a storage medium. One example method includes determining, by a terminal device, that the first data packet of the target service sent by the first network device is not successfully received, sending, by the terminal device, a first message to a second network device, to request to retransmit the first data packet, and receiving, by the terminal device, the first data packet from the second network device.

Disclosed herein includes a system, a method, and a device for prioritizing packet retransmission. A transmitting device can insert, for each packet of a plurality of packets of a video frame, a sequence number indicative of an order of the corresponding packet among the plurality of packets, into a header of the corresponding packet according to an application layer protocol. The transmitting device can transmit to the receiving device, at a first level of priority, the plurality of packets including the corresponding inserted sequence numbers. The transmitting device can receive an identification of one or more packets to be retransmitted to the receiving device, the identification based on at least the inserted sequence numbers of the one or more packets. The transmitting device can retransmit the one or more packets at a second level of priority that is higher than the first level of priority.

Provided is a data packet transmission method and device. The method includes: generating, by a first network element, first indication information according to a delivery status fed back by a second network element to the first network element, where the first indication information is used for instructing the second network element which has not successfully sent a data packet to a terminal to discard the data packet indicated by the first indication information. The present disclosure may solve the problem in the related art of unsynchronized data transmission in sending of a data packet to a terminal by a plurality of second network elements.