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公开(公告)号：US20230036718A1
公开(公告)日：2023-02-02
申请号：US17965901
申请日：2022-10-14
发明人： Xiaoshu Si , Xiang Wang , Ying Li
摘要： This application relates to the field of communications technologies, and discloses a Wi-Fi communication method and an electronic device. The method includes the following steps: An AP device is connected to a first device by using a target channel. The AP device supports full-duplex communication. On this basis, when the target channel is idle, the AP device sends a control message to the first device by using the target channel, where the control message includes a time period in which the AP device occupies the target channel. The first device determines, based on the time period, a time for sending a first data frame, where the sending time is in the time period. Then the first device sends the first data frame to the AP device at the sending time by using the target channel.
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公开(公告)号：US11025362B2
公开(公告)日：2021-06-01
申请号：US16805417
申请日：2020-02-28
发明人： Hui Yin , Xiang Wang
摘要： This application discloses a dynamic time adjustment method, apparatus, and system, and pertains to the field of network communications. The method includes: determining a length of a new downstream transmission duration; updating lengths of upstream and downstream transmission durations based on the determined length of the new downstream transmission duration; and keeping silent or sending an idle symbol or another symbol with known content in a transition zone until all user-side devices complete updating of the lengths of the upstream and downstream transmission durations, where the transition zone is an additional zone of the new downstream transmission duration compared with a currently used downstream transmission duration, or an additional zone of a new upstream transmission duration compared with a currently used upstream transmission duration.
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公开(公告)号：US09712208B2
公开(公告)日：2017-07-18
申请号：US14611553
申请日：2015-02-02
发明人： Jianping Tu , Jie Lv , Xiang Wang
CPC分类号： H04B3/32 , H04L25/0224
摘要： The present invention provides a method and an apparatus for training a Vector coefficient of a vectored digital subscriber line, where the method includes: after a handshake phase is executed for a joining line, calculating, by using a pilot estimation method, an initial precoding coefficient and an initial cancellation coefficient that represent interference from the joining line to a normal working line; and after a channel discovery phase is executed for the joining line, compensating the initial precoding coefficient and the initial cancellation coefficient by using a compensation factor, to obtain a precoding coefficient and a cancellation coefficient that represent the interference from the joining line to the normal working line, wherein the compensation factor is obtained according to a signal power change or a signal phase change of the joining line. The present invention improves efficiency of Vector coefficient training.
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公开(公告)号：US09680525B2
公开(公告)日：2017-06-13
申请号：US14794453
申请日：2015-07-08
发明人： Jianhua Liu , Guozhu Long , Xiang Wang , Yixian Liu
CPC分类号： H04B3/32 , H04L25/085 , H04M3/007 , H04M11/062
摘要： Embodiments of the present invention provide a signal processing method in a DSL system. The method includes: determining that there is no to-be-sent downstream signal on m subscriber lines in n subscriber lines; superimposing a signal X on the m subscriber lines, so that a signal output on the m subscriber lines after precoding processing is 0, where xm indicates a signal component loaded on the mth subscriber line in the m subscriber lines; performing precoding processing on a downstream signal on the n subscriber lines; and sending the downstream signal that has undergone the precoding processing on another line except the m subscriber lines in the n subscriber lines. The embodiments of the present invention further provide a network-side device and a DSL system.
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公开(公告)号：US09654172B2
公开(公告)日：2017-05-16
申请号：US14747100
申请日：2015-06-23
发明人： Xiang Wang
CPC分类号： H04B3/32 , H04L25/03898 , H04L27/2613 , H04L27/2634 , H04M3/306 , H04M3/34 , H04M11/062
摘要： The present invention provides a method and a device for line initialization. In the method, first, a first precoding matrix needed by a first part of subcarriers is acquired in a downstream direction, and then multiple data signals of all data signals that need to be sent in an initialization process are sent by using only the first part of subcarriers; afterward, a second precoding matrix needed by at least a second part of subcarriers of all available subcarriers is acquired, and remaining data signals of all the data signals exclusive of the multiple data signals are sent by using the at least second part of subcarriers to complete line initialization. By using the foregoing manner, the present invention can cancel crosstalk between lines while completing line initialization, and does not easily cause transmit power to exceed a limit.
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6.发明授权公开(公告)号：US10432350B2
公开(公告)日：2019-10-01
申请号：US15966665
申请日：2018-04-30
发明人： Xiang Wang , Weiyang Wang
摘要： A method for adjusting parameters of a sending device and a receiving device, and a terminal device are provided. In the method, a new precoding parameter that needs to be used by a sending device on a line when a precoding matrix in a downlink direction of the line changes, and a new signal recovery parameter that needs to be used by a receiving device and matches the new precoding parameter are first acquired; and then the new precoding parameter, the new signal recovery parameter, and a set moment and/or symbol at which the sending device starts to use the new precoding parameter are sent to the sending device, and the new signal recovery parameter and the set moment and/or symbol are sent to the receiving device by using the sending device.
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公开(公告)号：US10284256B2
公开(公告)日：2019-05-07
申请号：US15586579
申请日：2017-05-04
发明人： Bin Zhou , Xiang Wang
摘要： Embodiments of the present invention provide a nonlinear precoding bit loading method, a transmit end, a receive end, and a system. The method includes: determining, power control factors of multiple preset quantities of bits; obtaining, a first correspondence between the multiple preset quantities of bits and signal to noise ratios without power control; determining, a second correspondence between the multiple preset quantities of bits and signal to noise ratios with power control according to the power control factors and the first correspondence; and after actually measuring a signal to noise ratio with power control on a subcarrier, determining, according to the second correspondence, a preset quantity of bits corresponding to the actually measured signal to noise ratio with power control, using the determined preset quantity of bits as an actual bit loading quantity of the subcarrier, and notifying a transmit end of the actual bit loading quantity.
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公开(公告)号：US09444516B2
公开(公告)日：2016-09-13
申请号：US14164789
申请日：2014-01-27
发明人： Xiang Wang , Cheng Li
CPC分类号： H04B3/32 , H04L45/02 , H04M11/062
摘要： Embodiments of the present invention provide a method, an apparatus, and a system for supporting a non-vector line. The method includes: selecting n non-vector lines TL from lines that are in an initializing stage, where n is an integer greater than or equal to 1; controlling to perform no further initializing for other lines that are in the initializing stage except the TL until the TL fully enters a data transmission stage; and before the TL enters the data transmission stage, estimating a far-end crosstalk coefficient CTL-SV from the TL to a vector line SV that is in the data transmission stage, where the CTL-SV is used in signal processing to eliminate far-end crosstalk caused by the TL to the SV.
摘要翻译： 本发明的实施例提供了一种用于支持非矢量线的方法，装置和系统。 该方法包括：从初始化阶段的线选择n个非向量线TL，其中n是大于或等于1的整数; 对TL以外的初始化阶段的其他行进行不进行初始化，直到TL完全进入数据传输阶段为止; 并且在TL进入数据发送阶段之前，从TL到估计远端串扰系数CTL-SV到在数据发送阶段的向量线SV，其中CTL-SV用于信号处理以消除远端串扰， 由TL引起的端到端串扰到SV。
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公开(公告)号：US20150311949A1
公开(公告)日：2015-10-29
申请号：US14794453
申请日：2015-07-08
发明人： Jianhua Liu , Guozhu Long , Xiang Wang , Yixian Liu
CPC分类号： H04B3/32 , H04L25/085 , H04M3/007 , H04M11/062
摘要： Embodiments of the present invention provide a signal processing method in a DSL system. The method includes: determining that there is no to-be-sent downstream signal on m subscriber lines in n subscriber lines; superimposing a signal X on the m subscriber lines, so that a signal output on the m subscriber lines after precoding processing is 0, where xm indicates a signal component loaded on the mth subscriber line in the m subscriber lines; performing precoding processing on a downstream signal on the n subscriber lines; and sending the downstream signal that has undergone the precoding processing on another line except the m subscriber lines in the n subscriber lines. The embodiments of the present invention further provide a network-side device and a DSL system.
摘要翻译： 本发明的实施例提供了DSL系统中的信号处理方法。 该方法包括：确定在n个用户线路中的m个用户线路上没有不发送的下行信号; 在m个用户线路上叠加信号X，使得在预编码处理之后在m个用户线路上输出的信号为0，其中xm表示在m个用户线路中的第m个用户线路上加载的信号分量; 对n个用户线路上的下行信号进行预编码处理; 并且在n个用户线路中除了m个用户线路之外的另一个线路上发送经过预编码处理的下行信号。 本发明的实施例还提供一种网络侧设备和DSL系统。
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公开(公告)号：US11573777B2
公开(公告)日：2023-02-07
申请号：US17186352
申请日：2021-02-26
发明人： Reza Azimi , Cheng Xiang Feng , Kai-Ting Amy Wang , Yaoqing Gao , Ye Tian , Xiang Wang
IPC分类号： G06F8/41
摘要： A method includes analyzing a dataflow graph representing data dependencies between operators of a dataflow application to identify a plurality of candidate groups of the operators. Based on characteristics of a given hardware accelerator and the operators of a given candidate group of the plurality of candidate groups, determining whether the operators of the given candidate group are to be combined. In response to determining that the operators of the given candidate group are to be combined, retrieving executable binary code segments corresponding to the operators of the given candidate group, generating a unit of binary code including the executable binary code segments and metadata representing an execution control flow among the executable binary code segments, and dispatching the unit of code to the given hardware accelerator for execution of the unit of code.
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