Huawei Technologies Co., Limited

Mengyao Ma

Xiao Han

Yanchun Li

Xun Yang

Yan Xin

Wei Lin

Jiaqi Gu

Yan Long

Xuming Fang

Chenlong Jia

Changfeng Ding

Jiahui Li

Ming Gan

Min Yan

Zihan Tang

Yunbo Li

Kwok Shum Au

Yuchen Guo

Huazi Zhang

Sheng Sun

Guangjian Wang

Junwen Xie

Hongliang Wei

Xiaopeng Fan

Mingze Ding

Wenbin Che

Mengfan Zheng

Cong Ling

This application discloses a polar encoding method and apparatus and a polar decoding method and apparatus, to apply polar codes to source coding and decoding, to improve source coding and decoding performance. The method may be implemented by using the following steps: obtaining to-be-encoded source bits; performing first polar encoding on the to-be-encoded source bits to obtain encoded source bits, where the first polar encoding includes first transformation and second transformation, the first transformation is a polarization transformation, a mother code length corresponding to the first transformation is Ns, the polarization transformation is performed on the to-be-encoded source bits to obtain first source bits, and the second transformation is performed on the first source bits to obtain the encoded source bits; determining assistance information based on the first source bits; and outputting a source coding codeword, where the source coding codeword includes the encoded source bits and the assistance information.

Polar encoding method and apparatus and polar decoding method and apparatus

This application provides coding/decoding methods and communications apparatuses thereof. In an implementation, a coding method includes: obtaining a first information bit sequence; determining a first frozen bit sequence based on a probability distribution value Pof the first information bit sequence, determining a check bit sequence based on a second information bit sequence, where the second information bit sequence is the first information bit sequence or a sequence obtained after a pre-transformation operation is performed on the first information bit sequence, obtaining a first bit sequence based on the second information bit sequence, the check bit sequence, and the first frozen bit sequence, where the first bit sequence includes bits in the second information bit sequence.

Coding method, decoding method, and communications apparatus

This application discloses a communication method that comprises obtaining first data, where the length of the first data is A; compressing the first data into second data, where the length of the second data is C; and generating third data based on the second data, where the third data includes the second data and (T−C+p) alignment bits. T is a threshold in the J thresholds that is greater than or equal to C and the closest to C. The J thresholds correspond to A and are greater than 0, with J being a positive integer greater than or equal to 2. p is a quantity of auxiliary check bits and is an integer greater than or equal to 0. The communication method further comprises performing channel encoding on the third data to obtain fourth data and sending the fourth data.

Communication method and apparatus

Example encoding/decoding methods, communication apparatus, and systems are provided. One example encoding method includes encoding first data by using an encoding model, to obtain N pieces of encoded data, where N is an integer greater than 2. De-correlation is performed on the N pieces of encoded data to obtain N pieces of de-correlated encoded data, where a part or all of the N pieces of de-correlated encoded data may be for determining second data, the second data is for restoring third data, and the third data is the first data, or an approximation degree between the third data and the first data is greater than a specified threshold The N pieces of de-correlated encoded data are sent.

Encoding/decoding method, communication apparatus, and system

An information transmission method and a network device, the network device including a transceiver, a processor, and a non-transitory storage medium storing a computer program for execution by the processor. The computer program includes instructions to receive a first frame through the receiver, where an extended schedule element of the first frame has a field indicating communication between network devices is supported, and where the extended schedule element further has a source association identifier and a destination association identifier, and control the transceiver to transmit information to a first network device when both the first network device and the network device support communication between network devices, where a value of the source association identifier and a value of the destination association identifier are each 0.

Information transmission method and network device

This application provides an information indication method and an apparatus. In this application, a sending apparatus generates and sends a first frame, the first frame includes at least one piece of sub-time resource indication information, and each piece of sub-time resource indication information is in a one-to-one correspondence with one of at least one response apparatus. In addition, each piece of sub-time resource indication information includes a time resource at which the corresponding response apparatus sends feedback information for the first frame to the sending apparatus and a time resource at which the sending apparatus sends acknowledgment information for the feedback information to the corresponding response apparatus, so that the at least one response apparatus and the sending apparatus that sends the first frame can simultaneously perform beamforming training, thereby improving effectiveness of beamforming training performed on the sending apparatus and the at least one response apparatus.

Information indication method and apparatus

A communications apparatus includes a processor configured to generate a radio frame. The radio frame comprises a data block. The data block comprises a plurality of N pilot blocks, a plurality of M sub-data blocks, and one guard interval (GI). Every two N pilot blocks of the plurality of N pilot blocks are not adjacent. The GI is located at a tail end of the data block, 4≤N≤8, N is an integer, M≥N−1, and M is an integer. The communications apparatus also includes transceiver configured to send the radio frame to a receiver.

In an ISS process, the initiator sends a first SSW frame in different sector directions by sequentially using an antenna in m antennas, where m is not less than 1 and is less than or equal to N, and in an RSS process, the initiator receives a second SSW frame in a parallel (e.g., simultaneous) omnidirectional manner by using M antennas, where the second SSW frame is sent by a responder in different sector directions, each second SSW frame carries information used to indicate a first SSW frame with best quality in the ISS process, and the M antennas include at least the m antennas, and determines an optimal transmit beam in the ISS process based on the received second SSW frame.

Beamforming training method and apparatus

This application provides a beam training method and apparatus. The method includes: A first access point AP determines first information. The first information is used to indicate an association beamforming training A-BFT time period, the A-BFT time period is used to perform A-BFT between a plurality of APs and a station STA within coverage of the plurality of APs, and the plurality of APs include the first AP and at least one second AP. The first AP sends the first information. A first STA receives the first information, and determines, based on the first information, a time period for performing sector sweep. The beam training method and apparatus in embodiments of this application can be used to control the plurality of APs and a plurality of STAs to perform association beamforming training.

Beam training method and apparatus

Embodiments of this application provide an information transmission method and a network device. The method may include: listening, by a second network device, to a first frame sent by a first network device, where the first frame is used to indicate whether the first network device supports communication between network devices; and if both the first network device and the second network device support the communication between the network devices, transmitting, by the second network device, information with the first network device.

A communications method and device, to reduce service interruption time and signaling overheads that are generated when an access point that provides a communication service for a station changes because the station moves or changes a direction. First frames sent by different access points in an access point set to a station include a same sending address. In this way, when the station moves or changes a direction, the access point that provides the communication service for the station changes from one access point in the access point set to another access point. Because first frames sent by access points in the access point set include a same sending address, the station may consider the access point set as one access point.

Communications method and device having virtual access point

A communication method and a communications node includes sending, by a sending node, a first frame to a receiving node on a first channel, and sending at least one second frame to the receiving node on a second channel, where a frequency of the first channel is less than a frequency of the second channel, where each second frame corresponds to a sending direction, and a length of each second frame is less than a preset frame length.

Communication method and communications node

In an ISS process, the initiator sends a first SSW frame in different sector directions by sequentially using an antenna in m antennas, where m is not less than 1 and is less than or equal to N; and in an RSS process, the initiator receives a second SSW frame in a parallel (e.g., simultaneous) omnidirectional manner by using M antennas, where the second SSW frame is sent by a responder in different sector directions, each second SSW frame carries information used to indicate a first SSW frame with best quality in the ISS process, and the M antennas include at least the m antennas, and determines an optimal transmit beam in the ISS process based on the received second SSW frame.

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Shenzhen, China

Mengyao Ma