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公开(公告)号：EP3384713A1
公开(公告)日：2018-10-10
申请号：EP15911178.0
申请日：2015-12-25
发明人： TSODIK, Genadiy , WANG, Ningjuan , YU, Jian , XUE, Xin , SHILO, Shimi , EZRI, Doron , REDLICH, Oded , LIU, Le , LIN, Wei
IPC分类号： H04W56/00
CPC分类号： H04L27/2607 , H04L25/0204 , H04L27/2646
摘要： The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized.
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公开(公告)号：EP3370378A1
公开(公告)日：2018-09-05
申请号：EP16867984.3
申请日：2016-11-23
发明人： LIN, Wei , XUE, Xin , WANG, Ningjuan , LIU, Le
摘要： An HE-LTF transmission method is provided, including: determining, based on a total number N STS of space-time streams, a number N HELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1x mode and that is mentioned in implementations; and sending a time-domain signal according to the number N HELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.
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13.发明授权METHOD AND APPARATUS FOR AUTHENTICATION IN PASSIVE OPTICAL NETWORK AND PASSIVE OPTICAL NETWORK THEREOF 有权认证方法和设备，无源光网络和无源光学网络THEREFOR
公开(公告)号：EP2426866B1
公开(公告)日：2013-09-04
申请号：EP10780018.7
申请日：2010-04-20
IPC分类号： H04Q11/00
CPC分类号： H04Q11/0067 , H04L9/3273 , H04L63/0869 , H04Q2011/0079 , H04Q2011/0088
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公开(公告)号：EP4351071A3
公开(公告)日：2024-07-03
申请号：EP23211897.6
申请日：2019-07-01
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0041 , H04L1/0618 , H04L5/0046 , H04L5/0058
摘要： This application relates to the field of wireless communications technologies, and discloses a coded bit transmission method and apparatus, to improve spectrum resource utilization and a data rate of a Wi-Fi system. The method includes: A sender performs channel coding on information bits according to a used MCS, to generate coded bits, and distributes the coded bits to a plurality of channel sets or a plurality of resource units according to a distribution rule. A receiver receives, according to a receiving and combination rule, the coded bits that are carried in the plurality of channel sets used for single-user preamble puncturing transmission or the plurality of resource units used for orthogonal frequency division multiple access OFDMA transmission, and performs channel decoding on the coded bits according to the used modulation and coding scheme MCS, to generate the information bits. The MCS is an MCS used for each of the plurality of channel sets, or an MCS used for each of the plurality of resource units.
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公开(公告)号：EP4358479A3
公开(公告)日：2024-05-08
申请号：EP23213885.9
申请日：2020-11-13
发明人： LIANG, Dandan , GU, Zhi , LIN, Wei , GAN, Ming , LEI, Xianfu , ZHOU, Zhengchun
CPC分类号： H04L27/262 , H04L27/2613 , H04L27/26134 , H04L25/0226 , H04L5/0048 , H04L5/0007 , H04W84/12
摘要： This application provides a method and apparatus for transmitting a physical layer protocol data unit, so as to design a long training field sequence for a larger channel bandwidth. The method includes: generating a physical layer protocol data unit PPDU, where the PPDU includes a long training field, a length of a frequency domain sequence of the long training field is greater than a first length, and the first length is a length of a frequency domain sequence of a long training field of a PPDU transmitted over a channel whose bandwidth is 160 MHz; and sending the PPDU over a target channel, where a bandwidth of the target channel is greater than 160 MHz.
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公开(公告)号：EP4340267A2
公开(公告)日：2024-03-20
申请号：EP23205483.3
申请日：2014-04-30
发明人： CHEN, Zhouhui , MA, Zheng , LIN, Wei
IPC分类号： H04L1/00
摘要： The present invention discloses a data sending method and apparatus, which resolves a problem that performance of a high coding rate LDPC code obtained in an existing puncturing manner based on a variable node degree distribution is relatively poor because in the puncturing manner, to-be-punctured parity bits that use LDPC codes cannot be effectively distinguished. The method includes: encoding, by using an LDPC code check matrix, an information bit that needs to be sent, to obtain a codeword sequence; determining a puncturing priority of each parity bit in the codeword sequence according to row destruction and/or cycle destruction, on the LDPC code check matrix, of a variable node corresponding to each parity bit; puncturing the codeword sequence according to the puncturing priority of each parity bit in the codeword sequence; and generating a bit sequence according to the punctured codeword sequence, and sending the bit sequence. In this way, performance of an obtained high coding rate LDPC code is improved.
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公开(公告)号：EP4280554A2
公开(公告)日：2023-11-22
申请号：EP23172732.2
申请日：2016-08-26
发明人： XUE, Xin , WANG, Ningjuan , LIU, Le , LIN, Wei
IPC分类号： H04L27/26
摘要： Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.
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公开(公告)号：EP4239923A3
公开(公告)日：2023-10-11
申请号：EP23167742.8
申请日：2019-07-05
摘要： Embodiments of this application provide a communication method, a communication apparatus, and a communication device. The method includes: generating a physical layer protocol data unit PPDU including a preamble, where the preamble includes a legacy physical layer preamble and a new physical layer preamble, the new physical layer preamble includes a repeated field, and the repeated field is a field that has a preset out-of-order relationship with a preset field of the legacy physical layer preamble in frequency domain; and sending the PPDU. According to this application, auto-detection of a physical layer preamble of a PPDU in a next-generation 802.11 standard is implemented.
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公开(公告)号：EP4063907A1
公开(公告)日：2022-09-28
申请号：EP20900934.9
申请日：2020-12-18
发明人： LIU, Chenchen , YANG, Yang , LEI, Xianfu , WANG, Yong , DU, Rui , HAN, Xiao , YAN, Min , LIN, Wei
摘要： A data processing method and apparatus, and a device are provided. The method includes: obtaining a sequence set, where the sequence set includes a plurality of sequences, there is at least one first sequence in the plurality of sequences, an auto-ambiguity function of each first sequence is in a drawing pin form, and side lobe energy of a cross-ambiguity function between each first sequence and another sequence in the sequence set is less than a first threshold; and sending a signal based on a sequence in the sequence set, where the signal is used for velocity measurement and/or ranging. In this way, accuracy of performing measurement by a radar is improved.
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公开(公告)号：EP4044540A1
公开(公告)日：2022-08-17
申请号：EP20886354.8
申请日：2020-10-30
发明人： QIAO, Fei , LIN, Wei , YAN, Min , LEI, Xianfu , TANG, Xiaohu
摘要： This application provides a signal transmission method and apparatus, to implement phase tracking in a DFT-S-OFDM system. The method includes: A transmit end determines a guard interval sequence based on a quantity of channel bondings and a quantity of subcarriers corresponding to a resource element of the channel bonding; and then the transmit end sends a signal, where the signal includes the guard interval sequence, and the guard interval sequence is used to determine phase noise of the signal. In other words, in the DFT-S-OFDM system, a guard interval sequence of a sent signal or a received signal is determined based on a quantity of channel bondings and a quantity of subcarriers corresponding to a resource element of the channel bonding, and phase tracking may be implemented in the DFT-S-OFDM system. Therefore, phase noise of the signal can be determined in the DFT-S-OFDM system.
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