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公开(公告)号：US11881870B2
公开(公告)日：2024-01-23
申请号：US17856645
申请日：2022-07-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin
CPC classification number: H03M13/118 , H03M13/616
Abstract: A low-density parity-check (LDPC) code encoding method and a communication apparatus are described that provide increased 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. 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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公开(公告)号：US11102049B2
公开(公告)日：2021-08-24
申请号：US16725128
申请日：2019-12-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Yan Xin , Min Yan , Wei Lin
IPC: H04L27/34
Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. 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, which can be translated there between. Specific signal constellations are disclosed.
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公开(公告)号：US10567210B2
公开(公告)日：2020-02-18
申请号：US15729309
申请日：2017-10-10
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：US10219177B2
公开(公告)日：2019-02-26
申请号：US15411019
申请日：2017-01-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Jian Yu , Jun Zhu , Wei Lin
Abstract: A method includes: generating a packet, where first L time domain sequence bits of a second symbol in the packet are the same as first L time domain sequence bits of an information bearing section in a time domain sequence of a first symbol in the packet, the first symbol includes a cyclic prefix CP and the information bearing section, the second symbol is a symbol following the first symbol, a length of the CP is 16 bits, and a length of the information bearing section is 64 bits, where 1≤L≤64; and sending the packet to a receive end, so that the receive end receives and parses the packet.
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公开(公告)号：US11133973B2
公开(公告)日：2021-09-28
申请号：US16725128
申请日：2019-12-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Yan Xin , Min Yan , Wei Lin
IPC: H04L27/34
Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. 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, which can be translated there between. Specific signal constellations are disclosed.
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Patent Agency Ranking
公开(公告)号：US10389565B2
公开(公告)日：2019-08-20
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
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：US20180034678A1
公开(公告)日：2018-02-01
申请号：US15729309
申请日：2017-10-10
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：US20240204801A1
公开(公告)日：2024-06-20
申请号：US18523495
申请日：2023-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin
CPC classification number: H03M13/118 , H03M13/616
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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公开(公告)号：US11901914B2
公开(公告)日：2024-02-13
申请号：US17732776
申请日：2022-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin
CPC classification number: H03M13/1157 , H03M13/1151 , H03M13/616
Abstract: The present disclosure relates to low-density parity-check (LDPC) encoding methods and apparatus. One example method includes encoding k information bits by using a submatrix of ((n−k)/Z+j) rows and (n/Z+j) columns at an upper left corner of a check matrix H based on a first transmission code rate R satisfying R=k/(n+j×Z), obtaining a first codeword including the k information bits and (n−k+j×Z) redundant bits, and sending the first codeword to a receive end.
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20.发明授权公开(公告)号：US10952097B2
公开(公告)日：2021-03-16
申请号：US16516676
申请日：2019-07-19
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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