Huawei Technologies Co., Limited

Tianhang Yu

Jun Wang

Rong Li

Jian Wang

Yunfei Qiao

Gongzheng Zhang

Yinggang Du

Lingchen Huang

Zhaoyang Zhang

Shengchen Dai

Chen Xu

Yue Zhou

Xiaocheng Liu

Chuili Kong

Kangjian Qin

Deng Zheng

Yunmei Zhang

A signal processing method and an apparatus thereof. A first signal is received, wherein the first signal includes x symbols. N types of quantization levels are determined based on a signal distribution parameter of the first signal. A second signal is determined based on the first signal. Quantization processing is performed on the second signal to obtain x groups of first quantization results, wherein the x symbols are in one-to-one correspondence with the x groups of first quantization results. The x groups of first quantization results are mapped to a quantized first signal, wherein the quantized first signal includes x quantization levels, and each group of first quantization results is mapped to one of the N types of quantization levels. Signal processing is performed on the quantized first signal.

Signal processing method and apparatus thereof

Embodiments of this application provide a coding and modulation method, a demodulation and decoding method, an apparatus, and a device. The coding and modulation method includes obtaining K to-be-encoded bits and a modulation scheme, and coding the K to-be-encoded bits, based on M bit levels of the modulation scheme, to obtain M' code blocks, where M′<M, a code length of an icode block is N, N=M*N, Mis a quantity of bit levels corresponding to the icode block, N is a symbol block length, and 1≤i≤M′. The disclosed method further includes modulating the M′ code blocks, according to a mapping relationship between the M′ code blocks and the M bit levels, to obtain and output a modulated symbol sequence, where a code block whose code length is M*N corresponds to Mbit levels in the mapping relationship.

Coding and modulation method, demodulation and decoding method, apparatus, and device

Embodiments of this application provide example transceiver devices and example transceiver apparatuses used in the example transceiver devices. One example transceiver apparatus includes a transmit antenna and a receive antenna. The transmit antenna is configured to send a local signal to a receive antenna of a peer end. The receive antenna is configured to receive a signal transmitted by a transmit antenna of the peer end. The transmit antenna is on an interference cancellation plane of the receive antenna. The receive antenna is on an interference cancellation plane of the transmit antenna. An interference signal generated by the transmit antenna is canceled on the interference cancellation plane of the receive antenna or the interference cancellation plane of the transmit antenna.

Transceiver apparatus and transceiver device

This application discloses a polar code retransmission method and apparatus, to achieve an encoding gain. The method includes: when decoding of the first code word fails, performing polar code encoding on K first to-be-encoded bits and K' second to-be-encoded bits based on a second information bit position set to obtain a second code word, where elements in the second information bit position set are used to indicate positions of the to-be-encoded bits, and an element that is in the second information bit position set and that is used to indicate a position of a first to-be-encoded bit is a sum of N and an element that is in the first information bit position set and that is used to indicate the position of the first to-be-encoded bit; and sending a subcode in the second code word other than the first code word to the decoding device.

Polar code retransmission method and apparatus

A tracking area (TA) update method, a broadcast message transmission method, and a communications apparatus, where the tracking area update method includes: receiving a broadcast message periodically sent by a satellite device, where the broadcast message alternately carries tracking area codes (TACs) corresponding to one or more TAs of at least two TAs, and where coverage of a beam of the satellite device belongs to the at least two TAs; when detecting for the first time that a TA corresponding to a TAC in a broadcast message received in a current period does not belong to a first TA list, recording the TA in a second TA list; continuing detecting a subsequent broadcast message; and determining, based on a TAC in the subsequent broadcast message, whether to initiate a TA update procedure.

Tracking area update method, broadcast message transmission method, and communications apparatus

This application provides a polar coding method, a polar decoding method, and an apparatus. A transmit end obtains K to-be-coded bits and an index set including K polar channels, where a value set of K1 indexes in the set of the K indexes or a value set of K2 indexes in the set of the K indexes is determined based on a value set of K2 of the K to-be-coded bits, and the value set of the K1 indexes and the value set of the K2 indexes are complementary sets of each other; and performs polar coding on K1 to-be-coded bits. In comparison with a conventional polar coding method and a conventional polar decoding method, the polar coding method and the polar decoding method provided in this application can achieve an effect of reducing a bit rate. A simulation result indicates that the method has better performance.

Apparatus and method for polar coding and decoding for channels associated with complementary index sets

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Hangzhou, China

Tianhang Yu