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11. 发明申请

US20230058825A1 CHANNEL ACCESS METHOD AND APPARATUS 有权
公开(公告)号：US20230058825A1
公开(公告)日：2023-02-23
申请号：US17979593
申请日：2022-11-02
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Yunbo Li , Yanchun Li , Yi Luo
IPC分类号： H04W84/12 , H04W74/08
摘要： The present application provides a channel access process method in a wireless local area network. The method includes: generating, by a station, a backoff counter value; then performing, by the station, a backoff operation after receiving a first trigger frame, where the backoff operation includes: deducting, from the backoff counter value, a quantity N of subchannels for random access, to obtain a new backoff counter value; and when the new backoff counter value is 0 or a negative number, randomly selecting, by the station, one subchannel from the subchannels for random access, and then accessing the subchannel to send an uplink frame. The present application further provides a corresponding channel access apparatus. Applying the method and the apparatus of the embodiments of the present application improves system access efficiency and avoids a waste of system resources.

12. 发明申请

US20220253212A1 Split-Screen Display Processing Method and Apparatus, Device, and Storage Medium 有权
公开(公告)号：US20220253212A1
公开(公告)日：2022-08-11
申请号：US17613748
申请日：2020-05-21
申请人： Huawei Technologies Co., Ltd.
发明人： Yi Luo , Lubing Xie
IPC分类号： G06F3/04886 , G06F3/0484
摘要： A method includes obtaining, a screen splitting operation from a user on a touchscreen, splitting a current display screen into two areas based on the screen splitting operation, displaying, in a first area, an interface of a first application that is displayed on the display screen before splitting the screen, obtaining, from installed applications and using a clustering algorithm, at least one second application to combine with the first application in a split-screen manner, displaying an identifier of the at least one second application in a second area after the screen splitting, and displaying, in the second area, a third application that is currently running in a system.

13. 发明授权

US10405221B2 Uplink multi-user multi-input multi-output establishment method and apparatus 有权
公开(公告)号：US10405221B2
公开(公告)日：2019-09-03
申请号：US15357816
申请日：2016-11-21
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Yi Luo , Xun Yang , Yingpei Lin
IPC分类号： H04W24/10 , H04W76/40 , H04B7/0452 , H04J13/00 , H04L27/26 , H04W72/12 , H04W74/08 , H04W74/00
摘要： An uplink multi-user multi-input multi-output establishment method includes broadcasting, by a network side device, an uplink data sending announcement; receiving buffer information sent by a terminal that needs to send data, where the buffer information includes at least a sending level and a data sending length of to-be-sent data; determining, according to the buffer information, scheduling information for establishing uplink multi-user multi-input multi-output; and sending, to a terminal that is allowed to send data and selected from the terminal that needs to send data, a clear to send frame that carries the scheduling information, so that the terminal that is allowed to send data sends the to-be-sent data according to the scheduling information. The embodiments of the present disclosure effectively implement uplink multi-user multi-input multi-output establishment, so that signaling interworking is reduced, resource overheads are reduced, and data sending efficiency is improved.

14. 发明授权

US10187886B2 Data transmission method and station 有权
公开(公告)号：US10187886B2
公开(公告)日：2019-01-22
申请号：US15270390
申请日：2016-09-20
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Bo Li , Qiao Qu , Yi Luo
IPC分类号： H04W72/04 , H04L5/00 , H04W74/00 , H04W88/02 , H04W88/08
摘要： A data transmission method and a station are provided. In the method, the station receives an indication frame sent by an access point, where the indication frame is used to allocate a specified random contention channel. The station sends data over the specified random contention channel according to the indication frame and a random probability.

15. 发明授权

US09967009B2 Data transmission method and apparatus 有权
公开(公告)号：US09967009B2
公开(公告)日：2018-05-08
申请号：US14975555
申请日：2015-12-18
申请人： Huawei Technologies Co., Ltd.
发明人： Yingpei Lin , Jiayin Zhang , Yi Luo
IPC分类号： H04W4/00 , H04B7/0456 , H04W72/04 , H04W4/06
CPC分类号： H04B7/0456 , H04W4/06 , H04W72/0413 , H04W72/0453
摘要： The present invention discloses a data transmission method and apparatus. A first access point determines a current working uplink receiving beam, and broadcasts an identifier of the current working uplink receiving beam of the first access point, so that when a first station associated with the first access point determines, according to the identifier of the current working uplink receiving beam of the first access point, that a first transmitting beam at which the first station is currently working is the current working uplink receiving beam of the first access point, the first station performs data transmission with the first access point by using the first transmitting beam. The current working uplink receiving beam of the first access point and a current working uplink receiving beam of a second access point do not overlap in space.

16. 发明授权

US08913680B2 Interference alignment method and device and multi-channel communication system 有权
标题翻译：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
申请人： Huawei Technologies Co., Ltd.
发明人： Bin Li , Yi Luo , Hui Shen , Hufei Zhu
IPC分类号： H04B7/02 , H04B1/62 , H04B7/04 , H04B7/06 , H04B7/08
CPC分类号： H04B1/62 , H04B7/0434 , H04B7/0456 , H04B7/0617 , H04B7/086
摘要： 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.
摘要翻译：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。

17. 发明申请

US20130272445A1 PRECODING METHOD AND APPARATUS 有权
标题翻译：预测方法和装置
公开(公告)号：US20130272445A1
公开(公告)日：2013-10-17
申请号：US13912902
申请日：2013-06-07
申请人： Huawei Technologies Co., Ltd.
发明人： Hui Shen , Bin Li , Yi Luo , Hufei Zhu
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/0413
摘要： 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.
摘要翻译：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。

18. 发明申请

US20130177097A1 Interference Alignment Method and Device and Multi-Channel Communication System 有权
标题翻译：干扰对准方法与设备与多通道通信系统
公开(公告)号：US20130177097A1
公开(公告)日：2013-07-11
申请号：US13784182
申请日：2013-03-04
申请人： Huawei Technologies Co., Ltd.
发明人： Bin Li , Yi Luo , Hui Shen , Hufei Zhu
IPC分类号： H04B1/62
CPC分类号： H04B1/62 , H04B7/0434 , H04B7/0456 , H04B7/0617 , H04B7/086
摘要： 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.
摘要翻译：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。

19. 发明授权

US11425709B2 Data transmission processing method and apparatus 有权
公开(公告)号：US11425709B2
公开(公告)日：2022-08-23
申请号：US16789982
申请日：2020-02-13
申请人： Huawei Technologies Co., Ltd.
发明人： Yunbo Li , Jiayin Zhang , Yi Luo
IPC分类号： H04W4/00 , H04W72/04 , H04W74/04 , H04W84/12
摘要： Embodiments of the present invention provide a data transmission processing method and apparatus. The data transmission processing method in the embodiments includes successfully reserving, by a first station, a time-frequency resource, and allocating, by the first station, at least a partial time-frequency resource of the time-frequency resource to a third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station is a non-associated neighboring station of the first station.

20. 发明授权

US10979992B2 Transmission method and access point applied to a cooperative transmission 有权
公开(公告)号：US10979992B2
公开(公告)日：2021-04-13
申请号：US16798212
申请日：2020-02-21
申请人： Huawei Technologies Co., Ltd.
发明人： Xun Yang , Yi Luo
IPC分类号： H04W4/00 , H04W56/00
摘要： The present disclosure provide a transmission method and a device, which relate to the technical field of communications and reduce overhead and improve work efficiency in an application of cooperative transmission in aspects of synchronization, sharing of information such as data and the like, obtaining of channel information and data transmission. Meanwhile application scenarios may also be extended. The method specifically includes: obtaining, by an access point AP, a parameter value, wherein the parameter value is a frequency difference between a crystal oscillator frequency of the AP and a reference crystal oscillator frequency of a reference AP or a delay difference of the AP with respect to the reference AP; compensating, by the AP, a phase difference or a time difference according to the parameter value when both of the AP and the reference AP send data. The present disclosure is applied to an application of a cooperative transmission.

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