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公开(公告)号：US12149347B2
公开(公告)日：2024-11-19
申请号：US18170854
申请日：2023-02-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guido Montorsi , Sergio Benedetto , Yan Xin , Wei Lin
Abstract: Method and system method performed at a wireless transmitting station, including generating a first low density parity check (LPDC) codeword for a first source word for a first transmission, and generating a second LDPC codeword for a retransmission for the first LDPC codeword, the second LDPC codeword including a permutated subset of information bits included in the first LDPC codeword and parity check bits corresponding to the permutated subset of information bits.
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公开(公告)号：US12137021B2
公开(公告)日：2024-11-05
申请号：US17961709
申请日：2022-10-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin
Abstract: A modulation method, including: modulating data by using a non-uniform constellation; and sending the modulated data. When the non-uniform constellation provided in embodiments of this application is used, for each noise standard deviation, a BER of the non-uniform constellation provided in embodiments of this application is lower than a BER of an existing QAM constellation.
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公开(公告)号：US20190222229A1
公开(公告)日：2019-07-18
申请号：US16251373
申请日：2019-01-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guido Montorsi , Sergio Benedetto , Yan Xin , Wei Lin , Min Yan
CPC classification number: H03M13/1168 , H03M13/1185 , H03M13/635 , H03M13/6393 , H03M13/6527
Abstract: Methods and devices are disclosed for encoding source words and decoding codewords with LDPC matrices. The Methods and devices use a LDPC matrix Hn of lifting factor Z. The LDPC matrix Hn comprises a plurality of submatrices, each submatrix having a size of Z×Z, and at least one submatrix has m1 diagonals of “1” m1 is an integer>=2.
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公开(公告)号：US20170317868A1
公开(公告)日：2017-11-02
申请号：US15594185
申请日：2017-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Lin , Le Liu , Sergio Benedetto , Guido Montorsi , Weishan Lu
IPC: H04L27/26 , H04L12/801 , H04W72/04 , H04W84/12
CPC classification number: H04L27/2608 , H04L1/0042 , H04L1/0071 , H04L1/04 , H04L27/26 , H04L47/34 , H04W72/04 , H04W84/12
Abstract: Embodiments of the present disclosure provide an interleaving processing method and device in a WLAN system. The apparatus includes: a bit parsing unit, configured to allocate bits in a coded data stream to n sub resource block interleaving units according to a specific sequence, where n is a positive integer greater than 1, and a value of n is a quantity of resource blocks allocated to the user; and the sub resource block interleaving units, configured to perform discrete interleaving on input bits. According to the foregoing apparatus and method, system performance can be improved.
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公开(公告)号：US11876538B2
公开(公告)日：2024-01-16
申请号：US17856773
申请日：2022-07-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin , Ming Gan
CPC classification number: H03M13/6362 , H03M13/235 , H03M13/6356 , H04L1/0069
Abstract: A convolutional code rate matching method and a communication apparatus are provided. A puncturing pattern of a second codeword at a second code rate is obtained based on a puncturing pattern of a first codeword at a first code rate. A second puncturing location set of the second codeword is a subset of a first puncturing location set of the first codeword. When a transmit device decreases a code rate from the first code rate to the second code rate, a redundant bit is sent at a location of a complementary set of the second puncturing location set relative to the first puncturing location set. Compared with the first puncturing location set, the second puncturing location set may obtain more incremental redundant bits, to decrease a channel encoding rate. This can improve decoding performance of a convolutional code.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10390260B2
公开(公告)日：2019-08-20
申请号：US15472887
申请日：2017-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Le Liu , Yi Luo , Guido Montorsi , Sergio Benedetto
Abstract: Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.
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公开(公告)号：US10225311B2
公开(公告)日：2019-03-05
申请号：US15098141
申请日：2016-04-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huang Huang , Xi Yan , Sergio Benedetto , Guido Montorsi
Abstract: Embodiments of the present disclosure provide a signal processing method, an apparatus, and a system. The signal processing method includes acquiring a phase of each of transmit antennas when the lth OFDM data symbol is sent, and acquiring a phase of each of receive antennas when the lth OFDM data symbol is received. The method further includes compensating received signals of each of the receive antennas according to the phase of each of the transmit antennas when the lth OFDM data symbol is sent and the phase of each of the receive antennas when the lth OFDM data symbol is received, to obtain compensated signals of each receive antenna.
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公开(公告)号：US20170288935A1
公开(公告)日：2017-10-05
申请号：US15095787
申请日：2016-04-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guido Montorsi , Sergio Benedetto , Yan Xin , Min Yan
Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.
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公开(公告)号：US20250125907A1
公开(公告)日：2025-04-17
申请号：US18985795
申请日：2024-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Xun Yang , Yan Xin , Ming Gan , Mengyao Ma
IPC: H04L1/00
Abstract: A method includes performing low-density parity-check (LDPC) encoding on a first bit sequence based on a parity check matrix to obtain a first data packet and sending the first data packet. The parity check matrix includes a first parity check matrix and a second parity check matrix, both the first parity check matrix and the second parity check matrix conform to a first base matrix, and a code length of the first parity check matrix is different from a code length of the second parity check matrix.
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公开(公告)号：US12218687B2
公开(公告)日：2025-02-04
申请号：US18523495
申请日：2023-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin
Abstract: This application provides an LDPC code encoding method and a communication apparatus, to meet a requirement of increasing redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. In the method, a check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.
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