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    LDPC CODE ENCODING METHOD AND COMMUNICATION DEVICE
    1.
    发明公开
    LDPC CODE ENCODING METHOD AND COMMUNICATION DEVICE 审中-公开

    公开(公告)号：EP4072024A1

    公开(公告)日：2022-10-12

    申请号：EP20911294.5

    申请日：2020-12-31

    申请人： HUAWEI TECHNOLOGIES CO., LTD.

    发明人： MONTORSI, Guido ,  BENEDETTO, Sergio ,  LIN, Wei ,  XIN, Yan

    IPC分类号： H03M13/11

    摘要： 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.

    METHOD, APPARATUS AND SYSTEM FOR SIGNAL PROCESSING
    3.
    发明公开
    METHOD, APPARATUS AND SYSTEM FOR SIGNAL PROCESSING 审中-公开
    用于信号处理的方法，装置和系统

    公开(公告)号：EP3043487A1

    公开(公告)日：2016-07-13

    申请号：EP13895693.3

    申请日：2013-10-14

    申请人： Huawei Technologies Co., Ltd.

    发明人： HUANG, Huang ,  YAN, Xi ,  BENEDETTO, Sergio ,  MONTORSI, Guido

    IPC分类号： H04B7/04

    CPC分类号： H04L65/80 ,  H04B7/0413 ,  H04J11/00 ,  H04L5/0048 ,  H04L5/12 ,  H04L27/2662 ,  H04L27/2675

    摘要： Embodiments of the present invention provide a signal processing method, an apparatus, and a system, which are applied to the communications field and can improve precision of phase noise compensation during signal processing in a MIMO-OFDM system in which receive antennas or transmit antennas do not share a common oscillator and reduce cases of signal distortion. The signal processing method is applied to a receiving apparatus, and includes: acquiring a phase of each of transmit antennas when the l th OFDM data symbol is sent; acquiring a phase of each of receive antennas when the l th OFDM data symbol is received; and compensating received signals of each of the receive antennas according to the phase of each of the transmit antennas when the l th OFDM data symbol is sent and the phase of each of the receive antennas when the l th OFDM data symbol is received and by using a compensation formula, to obtain compensated signals of each receive antenna. The embodiments of the present invention provide a signal processing method, an apparatus, and a system, which are used for signal processing.

    摘要翻译： 本发明实施例提供了一种应用于通信领域的信号处理方法，装置和系统，可以提高接收天线或发射天线所在的MIMO-OFDM系统信号处理过程中的相位噪声补偿精度 不共用一个共同的振荡器并减少信号失真的情况。 该信号处理方法应用于接收装置，包括：当发送第l个OFDM数据符号时，获取每个发射天线的相位; 当接收到第l个OFDM数据符号时，获取每个接收天线的相位; 以及根据当发送第l个OFDM数据符号时的每个发送天线的相位和当接收第l个OFDM数据符号时每个接收天线的相位并通过使用补偿来补偿每个接收天线的接收信号 公式，以获得每个接收天线的补偿信号。 本发明实施例提供了一种信号处理方法，装置和系统，用于信号处理。

    ENCODING METHOD AND APPARATUS FOR LDPC
    5.
    发明公开
    ENCODING METHOD AND APPARATUS FOR LDPC 审中-公开

    公开(公告)号：EP4037221A1

    公开(公告)日：2022-08-03

    申请号：EP20880643.0

    申请日：2020-10-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： MONTORSI, Guido ,  BENEDETTO, Sergio ,  LIN, Wei ,  XIN, Yan

    IPC分类号： H04L1/18 ,  H03M13/11

    摘要： Embodiments of this application disclose an LDPC encoding method and an apparatus, so as to perform IR-HARQ transmission by using a rate-compatible LDPC code check matrix, thereby improving system transmission performance. The 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), and 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, where the check matrix H is a matrix of ((n-k)/Z+Q) rows and (n/Z+Q) columns, each element in the check matrix H represents a cyclic permutation matrix of one Z × Z identity matrix or an all-zero matrix, and the check matrix H includes a matrix H MC , a matrix H IR of Q rows and 24 columns, an all-zero matrix of 4 rows and Q columns, and an identity matrix of Q rows and Q columns; and the matrix H MC is located at the upper left corner of the check matrix H.

    INTERLEAVING PROCESSING METHOD AND APPARATUS IN WLAN SYSTEM BASED ON OFMDA
    6.
    发明公开
    INTERLEAVING PROCESSING METHOD AND APPARATUS IN WLAN SYSTEM BASED ON OFMDA 审中-公开
    基于OFMDA的WLAN系统交织处理方法和设备

    公开(公告)号：EP3211845A1

    公开(公告)日：2017-08-30

    申请号：EP14905673.1

    申请日：2014-11-14

    申请人： Huawei Technologies Co., Ltd.

    发明人： LIN, Wei ,  LIU, Le ,  BENEDETTO, Sergio ,  MONTORSI, Guido ,  LU, Weishan

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2608 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/04 ,  H04L27/26 ,  H04L47/34 ,  H04W72/04 ,  H04W84/12

    摘要： Embodiments of the present invention 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.

    摘要翻译： 本发明实施例提供了一种WLAN系统中的交织处理方法和设备。 该装置包括：比特解析单元，用于根据特定的序列将编码后的数据流中的比特分配给n个子资源块交织单元，其中，n为大于1的正整数，n的取值为 分配给用户的资源块; 子资源块交织单元，用于对输入比特进行离散交织。 根据上述装置和方法，可以提高系统性能。

    FRAME TRANSMISSION METHOD AND DEVICE FOR WIRELESS LOCAL AREA NETWORK
    7.
    发明公开
    FRAME TRANSMISSION METHOD AND DEVICE FOR WIRELESS LOCAL AREA NETWORK 审中-公开
    用于无线局域网的帧传输方法和设备

    公开(公告)号：EP3182753A1

    公开(公告)日：2017-06-21

    申请号：EP14903151.0

    申请日：2014-09-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： LIU, Le ,  LUO, Yi ,  MONTORSI, Guido ,  BENEDETTO, Sergio

    IPC分类号： H04W28/06

    CPC分类号： H04W28/065 ,  H04L27/2607 ,  H04L27/2613 ,  H04W84/12

    摘要： 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.

    摘要翻译： 本发明实施例公开了一种无线局域网的帧传输方法和无线局域网装置，涉及通信技术领域。 根据本发明，在WLAN中的帧传输过程中，接收无线局域网WLAN设备发送的帧，并且通过检测帧中包括的用户公共信号字段来识别特定标准的帧， 实现了WLAN设备的后向兼容，支持不同制式的WLAN设备的混合组网，提高了网络部署的灵活性，降低了组网的复杂度。

    TRANSMISSION METHOD AND TRANSMISSION EQUIPMENT FOR WIRELESS LOCAL AREA NETWORK
    8.
    发明公开
    TRANSMISSION METHOD AND TRANSMISSION EQUIPMENT FOR WIRELESS LOCAL AREA NETWORK 审中-公开
    ÜBERTRAGUNGSVERFAHRENUNDÜBERTRAGUNGSVORRICHTUNGFÜRWLAN

    公开(公告)号：EP3157277A1

    公开(公告)日：2017-04-19

    申请号：EP14897916.4

    申请日：2014-07-23

    申请人： Huawei Technologies Co., Ltd.

    发明人： MONTORSI, Guido ,  BENEDETTO, Sergio ,  YU, Jian ,  ZHU, Jun ,  LIN, Wei

    IPC分类号： H04W4/06

    CPC分类号： H04W28/065 ,  H04L5/003 ,  H04L27/18 ,  H04L27/2613 ,  H04L27/2663 ,  H04L27/2666 ,  H04L69/22 ,  H04W4/06 ,  H04W84/12 ,  Y02D70/142

    摘要： Embodiments of the present invention provide a wireless local area network transmission method and device, where the 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. According to the method and the device in the embodiments of the present invention, not only backward compatibility can be ensured, but also robustness of transmission in an outdoor scenario can be strengthened to an extent.

    摘要翻译： 本发明的实施例提供了一种无线局域网传输方法和装置，其中所述方法包括：产生分组，其中所述分组中第二符号的第一L个时域序列比特与所述分组中的第一L个时域序列比特相同 分组中的第一符号的时域序列中的信息承载部分，第一符号包括循环前缀CP和信息承载部分，第二符号是第一符号之后的符号，CP的长度为16位 ，信息承载部分的长度为64位，其中1‰¤L‰¤64; 并将分组发送到接收端，使得接收端接收并解析分组。 根据本发明实施例的方法和装置，不仅可以确保向后的兼容性，而且可以在一定程度上增强户外情况下的传输的鲁棒性。