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公开(公告)号：US11063807B2
公开(公告)日：2021-07-13
申请号：US16378160
申请日：2019-04-08
IPC分类号： H04B7/0452 , H04L27/26 , H04B7/08 , H04L25/02 , H04B7/06
摘要： A method for uplink multiuser data transmission and a system for uplink multiuser multiple input multiple output are provided. The method implemented by an access point (AP) includes: sending, indication information to at least two stations (STAs), wherein the indication information indicates that the at least two STAs perform an uplink multiuser data transmission; receiving, uplink data sent by the at least two STAs through channels, respectively; and demodulating, the uplink data using receiving beams corresponding to pre-estimated channels, respectively. According to the embodiments of the present disclosure, the AP receives the uplink data from multiple STAs through different channels from the STAs to the AP respectively, and demodulates data using the receiving beams corresponding to the channels respectively, thereby realizing that the AP performs separation and demodulation of the uplink data sent by multiple STAs and realizing the uplink multiuser data transmission.
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公开(公告)号：US11038737B2
公开(公告)日：2021-06-15
申请号：US14757735
申请日：2015-12-23
IPC分类号： H04B7/0452 , H04L27/26 , H04B7/08 , H04L25/02 , H04B7/06
摘要： 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. According to the embodiments of the present disclosure, the AP receives the uplink data from multiple STAs through different channels from the STAs to the AP respectively, and demodulates data using the receiving beams corresponding to the channels respectively, thereby realizing that the ap perform separation and demodulation of the uplink data sent by multiple STAs and realizing the uplink multiuser data transmission.
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3.发明申请公开(公告)号：US20190238387A1
公开(公告)日：2019-08-01
申请号：US16380804
申请日：2019-04-10
IPC分类号： H04L27/26 , H04L25/02 , H04B7/06 , H04B7/08 , H04B7/0452
CPC分类号： H04L27/2695 , H04B7/0452 , H04B7/066 , H04B7/0848 , H04L25/0204 , H04L25/0218 , H04L25/0224 , H04L27/2602 , H04L27/2649
摘要： 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：US10225853B2
公开(公告)日：2019-03-05
申请号：US14921797
申请日：2015-10-23
摘要： A method for scheduled stations is provided. The method includes: receiving identification information of a neighbor station of a target station reported by the target station; treating, based on pre-acquired information of a basic service set to which the target station belongs and the identification information, each station except the neighbor station among the stations included in the basic service set as a latent hidden station of the target station; and scheduling, based on a transmission strategy currently used by the target station, a scheduled station corresponding to the transmission strategy to perform data transmission with the target station in a target mode, wherein the scheduled station corresponding to the transmission strategy is the station corresponding to the transmission strategy in a pre-acquired mapping relation between the transmission strategy and the station.
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公开(公告)号：US10164797B2
公开(公告)日：2018-12-25
申请号：US15180403
申请日：2016-06-13
发明人： Yi Luo , Yunbo Li , Lianbo Zhang
摘要： The present invention provides a data transmission method. In the method of the present invention, a station receives an indication frame sent by an access point, where the indication frame is used for allocating a designated random contention channel; a channel state of the designated random contention channel is sensed according to the indication frame; and the station sends data on the designated random contention channel after it is detected that the designated random contention channel is in an idle state. Because in the method of the present invention, a designated random contention channel is allocated to a station, the station can send data on the designated random contention channel, contention among stations is reduced and a time for a station to be connected to a random contention channel is reduced.
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公开(公告)号：US10034254B2
公开(公告)日：2018-07-24
申请号：US15065415
申请日：2016-03-09
发明人： Chixiang Ma , Yi Luo , Xun Yang , Yingpei Lin
摘要： A method for adjusting a timing advance includes: sending an uplink message to an access point, AP, and receiving a downlink message returned by the AP; according to the moment when the uplink message is sent, the moment when the downlink message returned by the AP is received and the fixed time when the downlink message is returned by the AP, obtaining time alignment information; and according to the time alignment information, adjusting the amount of time by which a signal is sent in advance.
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公开(公告)号：US09801205B2
公开(公告)日：2017-10-24
申请号：US14818016
申请日：2015-08-04
CPC分类号： H04W72/1284 , H04L5/0007 , H04W28/20 , H04W74/006 , H04W74/08 , H04W84/12
摘要： Embodiments of the present disclosure provide a data transmission method, apparatus and system. The method includes: receiving an RTS frame sent by a legacy STA on a channel including a primary channel, and sending an indicating frame to the legacy STA and a new station, for enabling the legacy STA to send data on the channel including the primary channel according to the indicating frame, and enabling the new station to send data on a secondary channel not occupied by the legacy STA according to the indicating frame. By adopting the data transmission method, apparatus and system provided by the embodiments of the present disclosure, uplink OFDMA data transmission under a compatible mode is achieved, and the problem of bandwidth waste caused by data transmission of the legacy STA is solved.
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8.发明申请公开(公告)号：US20160302217A1
公开(公告)日：2016-10-13
申请号：US15184830
申请日：2016-06-16
发明人： Xun Yang , Yi Luo , Jiayin Zhang
CPC分类号： H04W72/12 , H04W16/14 , H04W72/0453 , H04W88/02 , H04W88/08
摘要： Embodiments disclose a scheduling method. The 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.
摘要翻译： 实施例公开了一种调度方法。 该方法包括：根据数据传输需求，通过接入点向第一调度服务器发送调度请求，其中调度请求包括应用的竞争频带的频带带宽信息和频带使用时间信息 申请的竞争频段。 该方法还包括根据频谱列表和调度请求，由接入点将由第一调度服务器分配的竞争频带接收到接入点，其中频谱列表至少包括频带使用信息和干扰 接入点的信息。 该方法还包括通过使用所分配的竞争频带来由接入点执行调度发送。
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公开(公告)号：US20150341954A1
公开(公告)日：2015-11-26
申请号：US14818016
申请日：2015-08-04
CPC分类号： H04W72/1284 , H04L5/0007 , H04W28/20 , H04W74/006 , H04W74/08 , H04W84/12
摘要： Embodiments of the present disclosure provide a data transmission method, apparatus and system. The method includes: receiving an RTS frame sent by a legacy STA on a channel including a primary channel, and sending an indicating frame to the legacy STA and a new station, for enabling the legacy STA to send data on the channel including the primary channel according to the indicating frame, and enabling the new station to send data on a secondary channel not occupied by the legacy STA according to the indicating frame. By adopting the data transmission method, apparatus and system provided by the embodiments of the present disclosure, uplink OFDMA data transmission under a compatible mode is achieved, and the problem of bandwidth waste caused by data transmission of the legacy STA is solved.
摘要翻译： 本公开的实施例提供了一种数据传输方法，装置和系统。 该方法包括：在包括主信道的信道上接收由传统STA发送的RTS帧，以及向传统STA和新站发送指示帧，以使传统STA能够在包括主信道的信道上发送数据 根据指示帧，使新台根据指示帧在未被传统STA占用的辅助信道上发送数据。 通过采用本公开实施例提供的数据传输方法，装置和系统，实现了兼容模式下的上行OFDMA数据传输，解决了传统STA的数据传输引起的带宽浪费问题。
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公开(公告)号：US08798182B2
公开(公告)日：2014-08-05
申请号：US13912902
申请日：2013-06-07
IPC分类号： H04L27/28
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。
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