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21.发明授权公开(公告)号：US11968066B2
公开(公告)日：2024-04-23
申请号：US18075385
申请日：2022-12-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L27/26 , H04B7/0452 , H04B7/06 , H04B7/08 , H04L25/02
CPC classification number: H04L27/2602 , H04B7/0452 , H04B7/066 , H04B7/0848 , H04L25/0204 , H04L25/0218 , H04L27/2695 , H04L25/0224 , H04L27/2603
Abstract: The embodiments of the present disclosure disclose a method for uplink multiuser data transmission and a system for uplink multiuser multiple input multiple output. The method includes: sending, by an access point AP, indication information to at least two stations STAs, wherein the indication information is used for indicating that the at least two STAs perform an uplink multiuser data transmission; receiving, by the AP, uplink data sent by the at least two STAs through channels from the at least two STAs to the AP, respectively; and demodulating, by the AP, the uplink data sent by the at least two STAs using receiving beams corresponding to pre-estimated channels from the at least two STAs to the AP, respectively.
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公开(公告)号：US20230298498A1
公开(公告)日：2023-09-21
申请号：US17919047
申请日：2021-03-30
Applicant: Huawei Technologies Co., Ltd.
IPC: G09G3/00
CPC classification number: G09G3/035 , G09G2340/0442 , G09G2340/0492 , G09G2340/145
Abstract: In a full-screen display method, a multimedia file is displayed non-full screen on an application interface; and an instruction for displaying the multimedia file in full screen is detected, and it is determined whether a window displaying the application interface is a graph whose aspect ratio is in a preset interval. If the window is a graph whose aspect ratio is in the preset interval, the multimedia file is displayed in full screen in the window based on a current display direction of the application interface, where the current display direction of the application interface includes: a display direction of the application interface obtained when the instruction for displaying the multimedia file in full screen is detected.
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公开(公告)号：US11425709B2
公开(公告)日：2022-08-23
申请号：US16789982
申请日：2020-02-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo Li , Jiayin Zhang , Yi Luo
Abstract: 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.
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公开(公告)号：US10979992B2
公开(公告)日：2021-04-13
申请号：US16798212
申请日：2020-02-21
Applicant: Huawei Technologies Co., Ltd.
Abstract: 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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公开(公告)号：US10536988B2
公开(公告)日：2020-01-14
申请号：US15822815
申请日：2017-11-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo Li , Yanchun Li , Yi Luo
Abstract: A channel access process method in a wireless local area network is provided. 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.
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Patent Agency Ranking
公开(公告)号：US10469148B2
公开(公告)日：2019-11-05
申请号：US14942912
申请日：2015-11-16
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B7/06
Abstract: The present disclosure provides a method and a device for channel information feedback, where the method includes: obtaining, by a beamformer, channel feedback information, where the channel feedback information includes: channel information related to the beamformer and channel information related to other beamformer; the channel information includes: channel information fed back by a beamformee in a same basic service set and channel information fed back by a beamformee in a different basic service set. Channel feedback of multiple sending ends is achieved in the present disclosure.
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27.发明授权公开(公告)号：US10390260B2
公开(公告)日：2019-08-20
申请号：US15472887
申请日：2017-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Le Liu , Yi Luo , Guido Montorsi , Sergio Benedetto
Abstract: Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.
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公开(公告)号：US10341067B2
公开(公告)日：2019-07-02
申请号：US15418462
申请日：2017-01-27
Applicant: Huawei Technologies Co., Ltd.
Abstract: A transmission device includes: an acquiring unit acquires LTF parameters, and acquires a start position I of allocated subcarriers, where the LTF parameters include a frequency domain transform parameter and a time domain transform parameter that are required for generating an LTF sequence; a frequency domain transform unit performs, according to the frequency domain transform parameter and the start position I, a frequency domain transform on an LTF basic sequence to obtain an LTF symbol; a time domain transform unit performs, according to the time domain transform parameter, a time domain transform on the LTF symbol to obtain the LTF sequence; and a sending unit adds the LTF sequence to a first data frame, and sends the first data frame to a second device, so that the second device determines the LTF basic sequence according to the LTF sequence and performs channel estimation according to the LTF basic sequence.
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公开(公告)号：US20190098645A1
公开(公告)日：2019-03-28
申请号：US16197906
申请日：2018-11-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Yang , Yi Luo , Jiayin Zhang
Abstract: A method includes sending, by an access point, a scheduling request to a first scheduling server according to a data transmission requirement, where the scheduling request includes frequency band bandwidth information of a contention frequency band that is applied for and frequency band use time information of the contention frequency band that is applied for. The method also includes receiving, by the access point, a contention frequency band that is allocated by the first scheduling server to the access point according to a spectrum list and the scheduling request, where the spectrum list includes at least frequency band use information and interference information of the access point. The method also includes performing, by the access point, scheduling transmission by using the allocated contention frequency band.
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公开(公告)号：US10212734B2
公开(公告)日：2019-02-19
申请号：US15258986
申请日：2016-09-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W74/02 , H04L27/26 , H04W72/14 , H04W74/04 , H04W74/08 , H04L1/18 , H04L5/00 , H04L5/14 , H04W84/12
Abstract: Embodiments of the present invention provide a data transmission method, a sender device, and a receiver device. The method includes: sending, by a sender device, to-be-transmitted data to a receiver device according to a transmission policy; and receiving, by the sender device, feedback information sent by the receiver device. In this process, for to-be-transmitted data after a guard interval in a last radio frame of any scheduling window, the sender device sends the to-be-transmitted data according to the transmission policy, so that no timeout occurs when the sender device is waiting for the feedback information, thereby achieving an objective of improving data transmission efficiency.
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