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公开(公告)号：US09559760B2
公开(公告)日：2017-01-31
申请号：US14823650
申请日：2015-08-11
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L51/043 , H04W72/1231 , H04W72/1236 , Y02B60/50 , Y02D70/142 , Y02D70/444
Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，并接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。
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公开(公告)号：US09882530B2
公开(公告)日：2018-01-30
申请号：US15417019
申请日：2017-01-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei Zhu
CPC classification number: H03D7/165 , H03M1/1245 , H04B1/005 , H04B1/30 , H04L27/26
Abstract: The present disclosure provides a receiver and a signal processing method. The receiver includes: a first frequency mixer, performing frequency mixing on a received signal by using a square wave signal to obtain a first frequency-mixed signal; a first low-pass filter, filtering the first frequency-mixed signal to obtain a first filtered signal; a first analog-to-digital converter, performing analog-to-digital conversion on the first filtered signal to obtain a first sampled signal; and a signal processing unit, estimating, according to the first sampled signal, an information symbol transmitted by a transmit end, where the square wave signal is generated according to a carrier frequency estimation value of the received signal. The receiver according to embodiments of the present disclosure provides better flexibility.
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公开(公告)号：US09203486B2
公开(公告)日：2015-12-01
申请号：US14087528
申请日：2013-11-22
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L51/043 , H04W72/1231 , H04W72/1236 , Y02B60/50 , Y02D70/142 , Y02D70/444
Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，以及接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。
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公开(公告)号：US09313737B2
公开(公告)日：2016-04-12
申请号：US14502730
申请日：2014-09-30
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W52/0222 , H04B7/0452 , H04W52/0209 , H04W52/0212 , H04W52/0216 , H04W52/0235 , H04W52/46 , H04W88/02 , H04W88/08 , Y02D70/142
Abstract: A power save method, an AP device and an STA device are provided. According to whether power save is allowed in a current TXOP and whether a station STA is newly added in an operation object identifier of a subsequent frame of each frame of the current TXOP, the AP device respectively sets a TXOP power save indication of each frame, and when the TXOP power save indication of the current frame is power save allowed, the STA device determines whether to enter the Doze state according to a judgment result for a doze condition. The adoption of the method and the device can expand the power save application range, and enhance the power save effect.
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公开(公告)号：US20150078489A1
公开(公告)日：2015-03-19
申请号：US14554355
申请日：2014-11-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei Zhu , Ganghua Yang
CPC classification number: H04L1/0036 , H03M7/3062 , H03M7/6047 , H04B1/16
Abstract: A method includes determining a correlation between a first residual error and multiple columns in a sensing matrix according to a measured value of an original signal and the sensing matrix, and determining a first array most correlative to the measured value of the original signal in the sensing matrix according to the correlation between the first residual error and the multiple columns; determining a correlation between a kth residual error and the multiple columns according to a correlation between a (k−1)th residual error and the multiple columns, and determining a kth array most correlative to the measured value of the original signal according to the correlation between the kth residual error and the multiple columns in the sensing matrix, where 2≦k≦K; and recovering the original signal after determining a Kth array most correlative to the measured value of the original signal.
Abstract translation: 一种方法包括根据原始信号和感测矩阵的测量值来确定感测矩阵中的第一残差和多列之间的相关性，以及确定与传感中原始信号的测量值最相关的第一阵列 根据第一残差和多列之间的相关性矩阵; 根据第（k-1）残差和多列之间的相关性确定第k残差和多列之间的相关性，并且根据相关性确定与原始信号的测量值最相关的第k个阵列 在第k个残差和传感矩阵中的多列之间，其中2＆nlE; k＆nlE; K; 并且在确定与原始信号的测量值最相关的第K个阵列之后恢复原始信号。
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Patent Agency Ranking
公开(公告)号：US10044401B2
公开(公告)日：2018-08-07
申请号：US15394354
申请日：2016-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei Zhu
IPC: H04B1/66 , H04B7/0456
Abstract: Embodiments provide a signal processing method, a transmitter, and a compressive sampling receiving device. The method includes: obtaining a periodic pseudo random sequence used when a compressive sampling receiving device performs frequency mixing. The method also includes selecting 2N information symbols from N radio signals; determining a precoding matrix D according to the periodic pseudo random sequence. The method also includes using the precoding matrix to perform precoding processing on the 2N information symbols to obtain 2N precoding results. The method also includes separately transmitting the 2N precoding results to the compressive sampling receiving device by using the 2N carriers.
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公开(公告)号：US09578658B2
公开(公告)日：2017-02-21
申请号：US14086718
申请日：2013-11-21
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W74/08
CPC classification number: H04W74/0825
Abstract: An apparatus, method, and system to provide a backoff method and device used for a lower priority access category AC. The method includes: when the lower priority AC and another AC in a same station STA obtain a transmission opportunity TXOP at the same time and an internal collision occurs, detecting a TXOP sharing state of the lower priority AC; and executing backoff of the lower priority AC according to the detected TXOP sharing state.
Abstract translation: 一种用于提供用于较低优先权访问类别AC的退避方法和装置的装置，方法和系统。 该方法包括：当同一站STA中的较低优先级AC和另一AC同时获得发送机会TXOP并发生内部冲突时，检测低优先级AC的TXOP共享状态; 并根据检测到的TXOP共享状态执行低优先级AC的退避。
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公开(公告)号：US09215034B2
公开(公告)日：2015-12-15
申请号：US14554355
申请日：2014-11-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei Zhu , Ganghua Yang
CPC classification number: H04L1/0036 , H03M7/3062 , H03M7/6047 , H04B1/16
Abstract: A method includes determining a correlation between a first residual error and multiple columns in a sensing matrix according to a measured value of an original signal and the sensing matrix, and determining a first array most correlative to the measured value of the original signal in the sensing matrix according to the correlation between the first residual error and the multiple columns; determining a correlation between a kth residual error and the multiple columns according to a correlation between a (k−1)th residual error and the multiple columns, and determining a kth array most correlative to the measured value of the original signal according to the correlation between the kth residual error and the multiple columns in the sensing matrix, where 2≦k≦K; and recovering the original signal after determining a Kth array most correlative to the measured value of the original signal.
Abstract translation: 一种方法包括根据原始信号和感测矩阵的测量值来确定感测矩阵中的第一残差和多列之间的相关性，以及确定与传感中原始信号的测量值最相关的第一阵列 根据第一残差和多列之间的相关性矩阵; 根据第（k-1）残差和多列之间的相关性确定第k残差和多列之间的相关性，并且根据相关性确定与原始信号的测量值最相关的第k个阵列 在第k个残差和传感矩阵中的多列之间，其中2＆nlE; k＆nlE; K; 并且在确定与原始信号的测量值最相关的第K个阵列之后恢复原始信号。
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9.发明授权Interference alignment method and device and multi-channel communication system 有权干扰对准方法及装置及多通道通讯系统公开(公告)号：US08913680B2
公开(公告)日：2014-12-16
申请号：US13784182
申请日：2013-03-04
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B1/62 , H04B7/0434 , H04B7/0456 , H04B7/0617 , H04B7/086
Abstract: An interference alignment method, an interference alignment device, and a multi-channel communication system are provided. The method includes: obtaining channel matrix in a multi-channel communication system; determining a first desired signal and a second desired signal of the multi-channel communication system according to the channel matrix; obtaining precoding vectors and receive vectors, after a first receive signal is filtered by a receive vector corresponding to the first desired signal, a signal formed by superposing interference signals included therein has a feature of a lattice constellation pattern, and that at a receiver corresponding to the second desired signal, after a second receive signal is filtered by a receive vector corresponding to the second desired signal, interference signals included therein are canceled, where the first receive signal and the second receive signal are transmit signals sent to the corresponding receivers after precoding processing is performed at transmitters by using corresponding precoding vectors.
Abstract translation: 提供了干涉对准方法，干涉对准装置和多通道通信系统。 该方法包括：在多信道通信系统中获取信道矩阵; 根据信道矩阵确定多信道通信系统的第一期望信号和第二期望信号; 在第一接收信号被对应于第一期望信号的接收矢量滤波后，获得预编码矢量和接收矢量，通过叠加其中包含的干扰信号形成的信号具有网格星座图案的特征， 第二所需信号，在第二接收信号被对应于第二期望信号的接收矢量滤波后，其中包括的干扰信号被消除，其中第一接收信号和第二接收信号是在预编码后发送到对应的接收机的发送信号 通过使用相应的预编码向量在发射机处执行处理。
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公开(公告)号：US20130272445A1
公开(公告)日：2013-10-17
申请号：US13912902
申请日：2013-06-07
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B7/04
CPC classification number: H04B7/0456 , H04B7/0413
Abstract: A precoding method and apparatus are disclosed. The corresponding method includes: constructing a Lagrange function according to a precoding matrix, transmit power, a receive filter matrix and a weighting matrix, and obtaining a Lagrange multiplier by using the Lagrange function; updating the precoding matrix according to the Lagrange multiplier to obtain an iterative precoding matrix and an iterative receive filter matrix; obtaining an iterative Lagrange multiplier according to the iterative precoding matrix, the transmit power, the iterative receive filter matrix and the weighting matrix, and repeating the above steps in an iterative manner of updating the iterative precoding matrix according to the iterative Lagrange multiplier till the iterative precoding matrix converges to a threshold; and precoding information to be transmitted according to the iterative precoding matrix converging to the threshold.
Abstract translation: 公开了一种预编码方法和装置。 相应的方法包括：根据预编码矩阵，发射功率，接收滤波器矩阵和加权矩阵构建拉格朗日函数，并通过使用拉格朗日函数获得拉格朗日乘数; 根据拉格朗日乘数更新预编码矩阵以获得迭代预编码矩阵和迭代接收滤波器矩阵; 根据迭代预编码矩阵，发射功率，迭代接收滤波器矩阵和加权矩阵获得迭代拉格朗日乘数，并以迭代方式重复上述步骤，根据迭代拉格朗日乘数更新迭代预编码矩阵，直到迭代 预编码矩阵收敛到阈值; 以及根据收敛到阈值的迭代预编码矩阵来发送的预编码信息。
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