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公开(公告)号：EP3972178A1
公开(公告)日：2022-03-23
申请号：EP20822428.7
申请日：2020-05-25
发明人： WU, Tao , CHEN, Teyan , JIA, Jia
摘要： This application provides a back-reflection communications method and apparatus. The method includes: A first device generates a back-reflection signal of a background signal, where the background signal is a signal transmitted by a second device. The first device sends the back-reflection signal of the background signal in a back-reflection communications mode. Duration of one modulation symbol in the back-reflection signal is N times duration of one channel estimation unit in the background signal, a time start location of the modulation symbol is aligned with a time start location of the signal estimation unit, and N is an integer greater than or equal to 1. Based on this, a change brought by the back-reflection signal to the background signal is based on the duration of the channel estimation unit. Although the back-reflection signal changes an amplitude or a phase of the background signal, the change of the background signal in one or more channel estimation units is constant, and the change may be obtained through channel estimation, to eliminate impact of the back-reflection signal on normal transmission of the background signal.
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公开(公告)号：EP3197068B1
公开(公告)日：2019-05-08
申请号：EP14903941.4
申请日：2014-10-13
发明人： CHEN, Teyan , LIU, Sheng
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公开(公告)号：EP3160099B1
公开(公告)日：2018-12-05
申请号：EP14895373.0
申请日：2014-06-17
发明人： LIU, Sheng , LAN, Zhou , CHEN, Teyan
CPC分类号： H04L5/0044 , H04L1/0003 , H04L5/0053 , H04L25/02 , H04L27/20 , H04W84/12
摘要： Embodiments of the present invention disclose a frame transmission method and an apparatus for a wireless local area network, which relate to the field of communications technologies. In the present invention, in a WLAN frame transmission process, a frame sent by a wireless local area network WLAN device is received, and identification of frames of different standards is completed by detecting a format indication field included in the frame, so as to implement backward compatibility of the WLAN device, so that hybrid networking of WLAN devices of different standards can be supported, flexibility of network deployment is improved, and networking complexity is reduced.
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4.发明公开DATA INTERFERENCE REMOVAL METHOD, SENDING END, RECEIVING END, AND SYSTEM 审中-公开数据干扰去除方法，发送结束，接收结束和系统
公开(公告)号：EP3197068A1
公开(公告)日：2017-07-26
申请号：EP14903941.4
申请日：2014-10-13
发明人： CHEN, Teyan , LIU, Sheng
CPC分类号： H04W72/044 , H04B7/06 , H04B7/0691 , H04B7/08 , H04B17/345 , H04L5/0053 , H04W72/082
摘要： The present invention provides a data interference cancellation method, a transmit end, a receive end, and a system. The method includes: allocating, by a transmit end, a corresponding downlink transmission resource to each transmission group, where at least one transmission group includes at least two transmit antennas; and separately sending, by the transmit end, downlink data on the downlink transmission resource corresponding to each transmission group. According to the technical solutions provided in embodiments of the present invention, complexity of data interference cancellation can be reduced, and a resource can be more effectively utilized.
摘要翻译： 本发明提供一种数据干扰消除方法，发送端，接收端和系统。 该方法包括：发送端为每个传输组分配对应的下行传输资源，其中至少一个传输组包括至少两个发射天线; 发送端分别在每个传输组对应的下行传输资源上发送下行数据。 根据本发明实施例提供的技术方案，可以减少数据干扰消除的复杂度，并且可以更有效地利用资源。
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公开(公告)号：EP3160099A1
公开(公告)日：2017-04-26
申请号：EP14895373.0
申请日：2014-06-17
发明人： LIU, Sheng , LAN, Zhou , CHEN, Teyan
IPC分类号： H04L25/02
CPC分类号： H04L5/0044 , H04L1/0003 , H04L5/0053 , H04L25/02 , H04L27/20 , H04W84/12
摘要： Embodiments of the present invention disclose a frame transmission method and an apparatus for a wireless local area network, which relate to the field of communications technologies. In the present invention, in a WLAN frame transmission process, a frame sent by a wireless local area network WLAN device is received, and identification of frames of different standards is completed by detecting a format indication field included in the frame, so as to implement backward compatibility of the WLAN device, so that hybrid networking of WLAN devices of different standards can be supported, flexibility of network deployment is improved, and networking complexity is reduced.
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装置，涉及通信技术领域。 在本发明中，在WLAN帧传输过程中，接收无线局域网WLAN设备发送的帧，并通过检测帧中包含的格式指示字段完成对不同标准帧的识别，从而实现 向下兼容WLAN设备，从而可以支持不同标准WLAN设备的混合组网，提高网络部署的灵活性，降低组网复杂度。
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公开(公告)号：EP3525363A1
公开(公告)日：2019-08-14
申请号：EP17866018.9
申请日：2017-06-29
发明人： WU, Tao , CHEN, Teyan
IPC分类号： H04B7/06 , H04L1/06 , H04L27/18 , H04L27/00 , H04B7/0408
摘要： This application provides a signal transmission method and apparatus. The method includes: combining a plurality of lower-order modulation signals into K higher-order modulation signals; and transmitting the K higher-order modulation signals through L antennas, where a higher-order modulation signal transmitted on an i th channel corresponding to an m th antenna in the L antennas and a higher-order modulation signal transmitted on a j th channel corresponding to an n th antenna are obtained by combining same lower-order modulation signals, K is a positive integer greater than or equal to 2, L is a positive integer greater than or equal to 2, m and n are positive integers less than or equal to L, m≠n, and i and j are positive integers. Therefore, signal transmission space diversity can be implemented, and signal transmission reliability and performance of a communications system can be improved.
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公开(公告)号：EP3151495B1
公开(公告)日：2018-08-29
申请号：EP14895770.7
申请日：2014-06-26
发明人： LIU, Sheng , CHEN, Teyan , CAI, Yu
CPC分类号： H04L5/0055 , H04B1/10 , H04L5/0005 , H04L5/14 , H04L25/03 , H04W72/082 , H04W84/12 , H04W88/02 , H04W88/08
摘要： Embodiments of the present invention relate to the field of communications technologies, and provide an interference cancellation apparatus and method, which can avoid being limited by a dynamic range of an ADC/DAC and can cancel a second-type self-interference component effectively. The interference cancellation apparatus includes a main receive antenna, a divider, a first-type interference canceller, a down converter, a filter, a coupler, a digital down-conversion unit, a second-type interference reconstructor, and a local-frequency signal generator. The present invention is used for interference cancellation.
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公开(公告)号：EP3073694A1
公开(公告)日：2016-09-28
申请号：EP13897713.7
申请日：2013-11-21
发明人： CHENG, Hong , CHEN, Teyan , LIU, Sheng
IPC分类号： H04L25/08
CPC分类号： H04L25/0224 , H04B1/525
摘要： The present invention discloses a self-interference channel estimation method and apparatus and relates to the communications field, which can solve a problem that a system data throughput is reduced during self-interference channel estimation. A specific solution is as follows: The self-interference channel estimation apparatus sends an estimation signal to a receiving apparatus and receives the estimation signal sent by the self-interference channel estimation apparatus, and then performs self-interference channel estimation according to the received estimation signal. The present invention is applied to self-interference channel estimation.
摘要翻译： 本发明公开了一种自干扰信道估计方法和装置，涉及通信领域，可以解决自干扰信道估计过程中系统数据吞吐量降低的问题。 具体方案如下：自干扰信道估计装置向接收装置发送估计信号，并接收自干扰信道估计装置发送的估计信号，然后根据接收到的估计进行自干扰信道估计 信号。 本发明应用于自干扰信道估计。
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公开(公告)号：EP3200413B1
公开(公告)日：2020-09-16
申请号：EP14904602.1
申请日：2014-10-22
发明人： LIU, Sheng , LU, Weishan , CHEN, Teyan
IPC分类号： H04L27/26
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