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公开(公告)号：US20170047964A1
公开(公告)日：2017-02-16
申请号：US15337407
申请日：2016-10-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Teyan Chen , Hong Cheng
Abstract: A method for interference cancellation is provided. The method includes: determining, by a first base station, a channel parameter from a transmit antenna of a second base station to a receive antenna of the first base station; receiving, by the first base station, a first signal using a first resource, where the first signal includes: a first interference signal and an uplink wanted signal, and the first interference signal is an interference signal generated when a downlink second signal is sent by the second base station by using the first resource; receiving, by the first base station, reconstruction information that is of the second signal and that is sent by the second base station; and determining, by the first base station, the first interference signal in the first signal according to the channel parameter and the reconstruction information of the second signal, and canceling the first interference signal.
Abstract translation: 提供了一种用于干扰消除的方法。 该方法包括：由第一基站确定从第二基站的发射天线到第一基站的接收天线的信道参数; 由第一基站接收使用第一资源的第一信号，其中第一信号包括：第一干扰信号和上行链路有用信号，并且第一干扰信号是当下行链路第二信号被发送时产生的干扰信号 第二基站使用第一资源; 由第一基站接收第二信号并由第二基站发送的重构信息; 以及由所述第一基站根据所述信道参数和所述第二信号的重构信息确定所述第一信号中的所述第一干扰信号，以及抵消所述第一干扰信号。
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公开(公告)号：US20170005773A1
公开(公告)日：2017-01-05
申请号：US15269313
申请日：2016-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Teyan Chen , Hong Cheng
IPC: H04L5/00
CPC classification number: H04L5/0073 , H04B1/525 , H04L5/005
Abstract: Embodiments of the present invention provide an apparatus for self-interference cancellation. The apparatus includes: a first splitter, configured to perform splitting processing on a local oscillator signal generated by a local oscillator to separately transmit the local oscillator signal to an up-converter and a delayer; the up-converter, configured to perform up-conversion processing on a baseband transmit signal according to the local oscillator signal to generate a transmit signal; the delayer, configured to perform delaying processing on the local oscillator signal according to a preset target delay; a first down-converter, configured to perform, based on the local oscillator signal obtained after the delaying processing, down-conversion processing on a receive signal to acquire a baseband receive signal, and transmit the baseband receive signal to a self-interference canceller; and the self-interference canceller, configured to perform self-interference cancellation processing on the baseband receive signal.
Abstract translation: 本发明的实施例提供了一种用于自干扰消除的装置。 该装置包括：第一分离器，被配置为对由本地振荡器产生的本地振荡器信号执行分离处理以将本地振荡器信号单独发送到上变频器和延迟器; 上变频器，被配置为根据本地振荡器信号对基带发送信号执行上变频处理，以产生发送信号; 延迟器，被配置为根据预设的目标延迟对本地振荡器信号执行延迟处理; 第一下变频器，被配置为基于在延迟处理之后获得的本地振荡器信号执行对接收信号的下变频处理以获取基带接收信号，并将基带接收信号发送到自干扰消除器; 以及所述自干扰消除器，被配置为对所述基带接收信号执行自干扰消除处理。
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公开(公告)号：US08913528B2
公开(公告)日：2014-12-16
申请号：US13622292
申请日：2012-09-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hong Cheng , Sheng Liu , Yinggang Du , Rui Wang
CPC classification number: H04L5/0062 , H04L5/0007 , H04L5/0073 , H04L5/14 , H04W72/082
Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.
Abstract translation: 本发明提供一种处理全双工干扰的方法和装置。 一种方法包括：获取当站点设备与至少两个UE进行全双工传输时引起的干扰程度; 以及根据所述干扰度确定允许在所述至少两个UE中的相同时间和频率资源上发送上行链路和下行链路信号的UE。 在本发明的实施例中，允许在相同时间和频率资源上发送上行链路和下行链路信号的UE可以根据当站点设备与至少两个UE进行全双工传输时引起的干扰程度进行分类，从而 尽可能地防止点对多点全双工通信情况下的干扰问题。
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公开(公告)号：US10079666B2
公开(公告)日：2018-09-18
申请号：US15269313
申请日：2016-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Teyan Chen , Hong Cheng
CPC classification number: H04L5/0073 , H04B1/525 , H04L5/005 , H04L5/14 , H04L5/1461
Abstract: Embodiments of the present invention provide an apparatus for self-interference cancellation. The apparatus includes: a first splitter, configured to perform splitting processing on a local oscillator signal generated by a local oscillator to separately transmit the local oscillator signal to an up-converter and a delayer; the up-converter, configured to perform up-conversion processing on a baseband transmit signal according to the local oscillator signal to generate a transmit signal; the delayer, configured to perform delaying processing on the local oscillator signal according to a preset target delay; a first down-converter, configured to perform, based on the local oscillator signal obtained after the delaying processing, down-conversion processing on a receive signal to acquire a baseband receive signal, and transmit the baseband receive signal to a self-interference canceller; and the self-interference canceller, configured to perform self-interference cancellation processing on the baseband receive signal.
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公开(公告)号：US09819385B2
公开(公告)日：2017-11-14
申请号：US15337407
申请日：2016-10-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Teyan Chen , Hong Cheng
Abstract: A method for interference cancellation is provided. The method includes: determining, by a first base station, a channel parameter from a transmit antenna of a second base station to a receive antenna of the first base station; receiving, by the first base station, a first signal using a first resource, where the first signal includes: a first interference signal and an uplink wanted signal, and the first interference signal is an interference signal generated when a downlink second signal is sent by the second base station by using the first resource; receiving, by the first base station, reconstruction information that is of the second signal and that is sent by the second base station; and determining, by the first base station, the first interference signal in the first signal according to the channel parameter and the reconstruction information of the second signal, and canceling the first interference signal.
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Patent Agency Ranking
6.发明授权Method and full-duplex communication device for acquiring channel response of self-interfering channel 有权用于获取自干扰信道的信道响应的方法和全双工通信设备公开(公告)号：US09504048B2
公开(公告)日：2016-11-22
申请号：US14577328
申请日：2014-12-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hong Cheng , Rui Wang , Yinggang Du
CPC classification number: H04W72/082 , H04L5/0048 , H04L5/143 , H04L25/022 , H04L25/0232
Abstract: Provided are a method and apparatus for acquiring channel responses of a self-interference channel and a full-duplex communication device. The method comprises: obtaining an estimate value of a channel response of the self-interfering channel by employing multiple reference signals to perform a channel estimation on the self-interfering channel; determining a stable range of each channel frequency-domain response on the basis of the channel response estimated value; randomly selecting a frequency point within the stable range of each channel frequency-domain response or selecting a frequency point of a greater channel response to serve as an emission frequency point of the reference signals, and, when an interrelation of the channel responses on the emission frequency point and on a non-emission frequency point is acquired, acquiring all the channel responses on time-domain and frequency-domain on the basis of a reception signal corresponding to the reference signals on the emission frequency point.
Abstract translation: 提供了一种用于获取自干扰信道和全双工通信设备的信道响应的方法和装置。 该方法包括：通过采用多个参考信号来获得自干扰信道的信道响应的估计值，以在自干扰信道上执行信道估计; 基于信道响应估计值确定每个信道频域响应的稳定范围; 在每个信道频域响应的稳定范围内随机选择一个频率点，或选择较大信道响应的频点作为参考信号的发射频率点，并且当发射信道响应的相关性 获取频率点和非发射频率点，基于与发射频率点上的参考信号对应的接收信号，在时域和频域获取所有信道响应。
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公开(公告)号：US09210003B2
公开(公告)日：2015-12-08
申请号：US14290350
申请日：2014-05-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Hong Cheng
CPC classification number: H04L25/0228 , H04L25/03968 , H04L27/2601
Abstract: A downlink channel estimation method and system, and a mobile terminal. In the method, a first mobile terminal is located in a central area of a cell, a second mobile terminal is located in an edge area of the cell, and a resource block of the second mobile terminal is adjacent to a resource block of the first mobile terminal, so that the first mobile terminal can use a data signal transmitted from a base station to the second mobile terminal to perform downlink channel estimation, thereby improving the accuracy of the downlink channel estimation, and enhancing the performance of the downlink channel estimation.
Abstract translation: 下行链路信道估计方法和系统，以及移动终端。 在该方法中，第一移动终端位于小区的中央区域，第二移动终端位于小区的边缘区域，第二移动终端的资源块与第一移动终端的资源块相邻， 移动终端，使得第一移动终端可以使用从基站向第二移动终端发送的数据信号来执行下行链路信道估计，从而提高下行链路信道估计的准确性，并提高下行链路信道估计的性能。
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公开(公告)号：US20150055515A1
公开(公告)日：2015-02-26
申请号：US14529502
申请日：2014-10-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hong Cheng , Sheng Liu , Yinggang Du , Rui Wang
CPC classification number: H04L5/0062 , H04L5/0007 , H04L5/0073 , H04L5/14 , H04W72/082
Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.
Abstract translation: 本发明提供一种处理全双工干扰的方法和装置。 一种方法包括：获取当站点设备与至少两个UE进行全双工传输时引起的干扰程度; 以及根据所述干扰度确定允许在所述至少两个UE中的相同时间和频率资源上发送上行链路和下行链路信号的UE。 在本发明的实施例中，允许在相同时间和频率资源上发送上行链路和下行链路信号的UE可以根据当站点设备与至少两个UE进行全双工传输时引起的干扰程度进行分类，从而 尽可能地防止点对多点全双工通信情况下的干扰问题。
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公开(公告)号：US20140254707A1
公开(公告)日：2014-09-11
申请号：US14286011
申请日：2014-05-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Rui Wang , Yinggang Du , Hong Cheng
CPC classification number: H04B7/0837 , H04B7/0613 , H04L25/03891 , H04L25/08 , H04L27/3488 , H04L2025/0342
Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for interference alignment. The method includes: receiving signals transmitted by transmit ends, where the signals include interference signals and a wanted signal; aligning original constellation diagrams of the interference signals to acquire a first interference aligned constellation diagram; performing, according to the first interference aligned constellation diagram, interference signal demodulation and decoding on the received signals to acquire an interference source bit sequence; performing, according to the interference source bit sequence and the first interference aligned constellation diagram, interference reconstruction and removal to acquire a second interference aligned constellation diagram; and performing, according to the second interference aligned constellation diagram, wanted signal demodulation and decoding on the signal sequence to acquire the wanted signal transmitted by a wanted signal transmit end. The embodiments of the present invention are applicable to radio communications.
Abstract translation: 本发明的实施例提供了用于干涉对准的方法，装置和系统。 该方法包括：接收由发射端发射的信号，其中信号包括干扰信号和有用信号; 对准干扰信号的原始星座图以获得第一干扰对齐的星座图; 根据第一个干扰对齐的星座图，对接收到的信号进行干扰信号解调和解码，以获取干扰源比特序列; 根据干扰源比特序列和第一干扰对齐星座图执行干扰重构和去除以获取第二干扰对齐的星座图; 并且根据第二干涉对准星座图执行对信号序列的有用信号解调和解码以获得由有用信号发送端发送的有用信号。 本发明的实施例可应用于无线电通信。
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公开(公告)号：US20130194984A1
公开(公告)日：2013-08-01
申请号：US13622292
申请日：2012-09-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hong Cheng , Sheng Liu , Yinggang Du , Rui Wang
IPC: H04L5/14
CPC classification number: H04L5/0062 , H04L5/0007 , H04L5/0073 , H04L5/14 , H04W72/082
Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.
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