A multi-link aggregation transmission method and a related apparatus. The method includes: a receive end receives at least one of a data frame and a BAR frame over a plurality of links between the receive end and a transmit end, where the plurality of links includes a first link. The receive end receives a block acknowledgment request BAR frame over the first link, where the BAR frame carries SSN_1 corresponding to the first link. The receive end adjusts, based on SSNs corresponding to all the links, a value of a current starting sequence number WinStart of a scoreboard window. The receive end processes, based on the adjusted WinStart, a data frame received over the plurality of links. The receive end can adaptively adjust the WinStart.

There is disclosed a method of operating a feedback radio node in a radio access network. The method includes transmitting feedback signalling representing an encoded sequence of bits, the encoded sequence of bits representing a sequence of feedback information bits, the sequence of feedback information bits comprising a plurality of subpatterns, each subpattern having a type of a set of types. The set of types has a first type and a second type, the subpatterns being ordered in the sequence according to their type. The disclosure also pertains to related devices and methods.

This application discloses a downlink data sending method, a downlink data receiving method, and an apparatus, and relates to the communication field, to resolve a problem that feedback information fails to be sent, and consequently, a retransmission probability of downlink data is increased, and data transmission efficiency is reduced. When at least two of P PDSCHs in one slot overlap in time domain, a network device cancels sending of partially overlapping PDSCHs. If one first PDSCH whose sending is canceled is the last repetition in PDSCH repetitions of first data, and a terminal device receives another repetition in the PDSCH repetitions of the first data before the first PDSCH, the terminal device still sends feedback information for the first data to the network device in a feedback slot corresponding to the first PDSCH.

This application discloses a downlink data sending method, a downlink data receiving method, and an apparatus, and relates to the communication field, to resolve a problem that feedback information fails to be sent, and consequently, a retransmission probability of downlink data is increased, and data transmission efficiency is reduced. When at least two of P PDSCHs in one slot overlap in time domain, a network device cancels sending of partially overlapping PDSCHs. If one first PDSCH whose sending is canceled is the last repetition in PDSCH repetitions of first data, and a terminal device receives another repetition in the PDSCH repetitions of the first data before the first PDSCH, the terminal device still sends feedback information for the first data to the network device in a feedback slot corresponding to the first PDSCH.

This application discloses a multicast transmission method. The multicast transmission method includes: a first network device receives a first data packet and first indication information, where the first indication information indicates a sequence of the first data packet in at least one data packet; the first network device sets a sequence number of a first protocol layer of the first data packet based on the first indication information; and the first network device sends the first data packet to a terminal device. In this way, all data packets received by the terminal device include corresponding sequence numbers of the first protocol layers.

There is provided a communication apparatus that complies with an IEEE 802.11 series standard, comprising: data transmitting unit for transmitting data frames each including a data unit to an other communication apparatus a plurality of times continuously; generating unit for generating a Block Ack Request (BAR) frame; BAR transmitting unit for transmitting the BAR frame to the other communication apparatus after transmission of the data frames the plurality of times continuously; and receiving unit for receiving a Block Ack (BA) frame as a response to the BAR frame, wherein the generating unit indicates a sequence number for a data unit in an initial data frame using a predetermined field in the BAR frame, and the predetermined field includes a different field from a Starting Sequence Number field in the BAR frame.

Various embodiments of the teachings herein include a computer-implemented method for scheduling transmissions of a plurality of data streams in a telecommunication network. The transmissions are partitioned into transmission cycles with a predetermined length in time. Repetitive transmissions of each of the data streams are transmitted based on the predetermined length multiplied by a respective repetition rate. The method includes: determining a path through the network for the transmissions of each stream; determining a shared transmission links based on a comparison of the paths, wherein each shared transmission link is part of at least two of the paths; based on a numerical optimization, determining a phase of the repetitive transmissions for each data stream, the optimization using an objective function with a value for interference between two repetitive transmissions; and scheduling the transmissions of each data stream, wherein the transmissions start at a transmission cycle associated with the respective phase.

Various embodiments of the teachings herein include a computer-implemented method for scheduling transmissions of a plurality of data streams in a telecommunication network. The transmissions are partitioned into transmission cycles with a predetermined length in time. Repetitive transmissions of each of the data streams are transmitted based on the predetermined length multiplied by a respective repetition rate. The method includes: determining a path through the network for the transmissions of each stream; determining a shared transmission links based on a comparison of the paths, wherein each shared transmission link is part of at least two of the paths; based on a numerical optimization, determining a phase of the repetitive transmissions for each data stream, the optimization using an objective function with a value for interference between two repetitive transmissions; and scheduling the transmissions of each data stream, wherein the transmissions start at a transmission cycle associated with the respective phase.

The present technology relates to a transmission device, a reception device, a transmission system, and a transmission method capable of improving transmission efficiency of subdata added to main data. A transmission device includes a frame sequence number setting unit that, on the basis of a frame number indicating an order of a subframe in a main frame, assigns to the subframe a frame sequence number indicating an order of the subframe in a frame sequence including a plurality of the subframes, and a multiplexing unit that arranges a data packet at a predetermined position in the subframe on the basis of the frame sequence number. The present technology can be applied to a CCU, for example.

The disclosure relates to a device for transmitting a data stream and a device for receiving a data stream. Disclosed is a device for transmitting a data stream including: an encoder configured to generate a compressed bitstream by encoding input media, generate additional information about the compressed bitstream, and generate a data stream (DS) including the additional information and the compressed bitstream, wherein the additional information includes at least one class information indicating an importance of the compressed bitstream, and a DS transmitter configured to generate a packet by packing the data stream, transmit a plurality of packets including the generated packet to a reception device, and retransmit at least some of the plurality of packets due to transmission error, wherein the retransmitted packets are identified based on at least corresponding class information.