Abstract: A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z?K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

Abstract: The present application provides a resource scheduling method and apparatus. The method includes: receiving a first coded frame; determining a remaining delay budget of the first coded frame based on an actual time point at which the first coded frame arrives at a first network element; determining a scheduling priority based on the remaining delay budget; and scheduling, for the first coded frame based on the scheduling priority, a transmission resource for transmitting the first coded frame.

Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z?K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.

Abstract: A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: This application discloses a method and an apparatus for processing information, a communications device, and a communications system. The communications device is configured to obtain a starting position of an output bit sequence in a coded block in a circular buffer, and determine the output bit sequence in the coded block based on a length of the output bit sequence and the starting position. A value of the starting position is one of {p0, p1, p2, . . . , pkmax?1}, where 0?pk<NCB, pk is an integer, k is an integer, 0?k<kmax, NCB is a size of the coded block, and kmax is an integer greater than or equal to 4.

Abstract: A data processing method and a related apparatus are disclosed, to improve data recovery effects in various packet loss scenarios. The method includes: determining a packet loss scenario type corresponding to a first data packet when detecting that the first data packet is lost in a data packet transmission process (201); generating a second data packet based on a data packet adjacent to the first data packet if the packet loss scenario type corresponding to the first data packet meets a data packet compensation condition (202); and finally adding the second data packet to a corresponding target location at which the first data packet is located before the first data packet is lost, that is, using the second data packet to compensate for the lost first data packet (203).

Abstract: This application provides a communication method and apparatus, and a computer-readable storage medium. The method includes: obtaining average user-experience information; obtaining quality impairment information of a data packet; and sending the data packet to a terminal based on a priority of the data packet, where the priority of the data packet is related to the quality impairment information of the data packet and/or the average user-experience information.

Abstract: A communication method and an apparatus. A terminal device receives at least one video frame from a network device. The terminal device determines a video frame parameter based on the at least one video frame. The terminal device sends the video frame parameter to the network device.

Abstract: This application provides a data transmission method and an apparatus. In the method, a first data unit is received from a server or a data network, wherein the first data unit comprises first identification information and second identification information, a target transmission requirement corresponding to the first data unit is obtained based on the first identification information, protocol data encapsulation is performed on the first data unit based on the target transmission requirement, to obtain a second data unit that comprises third identification information related to the second identification information; and the second data unit is sent to an access network device.

Abstract: One example method includes obtaining L1 first decoding paths of an (i?1)th group of to-be-decoded bits, where i is an integer, received data corresponds to P groups of to-be-decoded bits, and 1<i?P, determining at least one second decoding path corresponding to each first decoding path, where a quantity of second decoding paths corresponding to each first decoding path is less than 2n, and where n is a quantity of information bits included in an ith group of to-be-decoded bits, and determining at least one reserved decoding path of the ith group of to-be-decoded bits in second decoding paths corresponding to the L1 first decoding paths. The at least one reserved decoding path includes a decoding result of the ith group of to-be-decoded bits.

Abstract: A data transmission method and an apparatus. A transmission priority of a data packet may be changed so that the data packet has an opportunity to continue to be transmitted. when the data packet just arrives at a PDCP layer of a communication apparatus, and the priority of the data packet is an initial priority. If the data packet is not sent or is not successfully sent after a decoding moment of a receiver is exceeded, compared with a manner of directly discarding the data packet, in this manner, the priority of the data packet may be changed, so that the data packet has the opportunity to continue to be transmitted. This helps improve a compression rate and a decoding effect, to improve user experience.

Abstract: A communication method includes obtaining network transmission quality information and channel state information (CSI), where the network transmission quality information indicates communication quality of extended reality (XR) data during network transmission; and managing a data communication manner based on the network transmission quality information and the CSI. According to the method, when managing a manner of data communication, a network device considers network transmission quality information that can reflect XR experience, thereby improving XR experience of a terminal device in a communication system, and further effectively increasing a quantity of users satisfied with the XR experience in the communication system.

Abstract: A communication method includes receiving, by a first communication apparatus, indication information from a second communication apparatus, and determining, by the first communication apparatus, a first quality of service (QoS) of the extended reality (XR) service based on the at least one piece of QoS of an XR service. The first communication apparatus is a core network device or an access network device. The indication information is useable to indicate at least one piece of QoS of the XR service. The XR device receives data of the XR service or sends data of the XR service by a terminal device. The second communication apparatus is an XR server or a chip in the XR server.

Abstract: This application provides a wireless communication method and a communication apparatus. The method includes a terminal device receives a data frame from a second device by using a first device, and notifies the first device when the terminal device determines that a communication data block from the first device is not successfully received. After determining a protocol data packet corresponding to the communication data block, the first device notifies the second device that the first protocol data packet is not successfully transmitted. After determining a data unit that is in the data frame and that corresponds to the communication data block, the terminal device notifies the second device through second-step feedback.

Abstract: A low density parity check (LDPC) channel encoding method for use in a wireless communications system includes a communication device encoding an input bit sequence by using a LDPC matrix to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The encoding method can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: This application provides a data transmission method, a base station, and a terminal device. The method includes: determining, by a base station, a target base graph in N Raptor-like LDPC base graphs; and sending, by the base station, indication information to a terminal device, where the indication information is used to indicate the terminal device to use the target base graph to perform LDPC encoding and decoding. Based on the foregoing technical solution, the base station may determine a target base graph in a plurality of Raptor-like LDPC base graphs that may be used to perform LDPC encoding and decoding, and indicate the target base graph to the terminal device. Further, for one code rate or one code length, the base station may select different base graphs as required.

Abstract: Embodiments of this application disclose example data transmission methods and example communication apparatuses. One example method includes receiving, by a first core network function entity, multi-stream transmission information of a service, where the multi-stream transmission information indicates that the service is transmitted via first split data and second split data. The first core network function entity can then receiver, based on the multi-stream transmission information, first quality of service QoS configuration information and second QoS configuration information, where the first QoS configuration information corresponds to the first split data, and the second QoS configuration information corresponds to the second split data. The first core network function entity can then output the first QoS configuration information and the second QoS configuration information.

Abstract: This application provides an extended reality data transmission method and an apparatus. The method includes: determining that a data type is extended reality data; determining, based on the data type, to obtain, based on delay information and transmission error information, extended reality quality indicator XQI information corresponding to a target rate, where the XQI information indicates transmission quality of the extended reality data; and performing communication based on the XQI information.

Abstract: This application relates to communicating information between communication devices. A channel coding method is disclosed. A communication device obtains an input sequence of K bits. The communication device encodes the input sequence using a low density parity check (LDPC) matrix H, to obtain an encoded sequence. The LDPC matrix H is determined according to a base matrix and a lifting factor Z. The base matrix includes m rows and n columns, m is greater than or equal to 5, and n is greater than or equal to 27. The lifting factor Z satisfies a relationship of 22*Z?K. According to the encoding method provided in the embodiments, information bit sequences of a plurality of lengths can be encoded for transmission between the communication devices.