专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08059553B2 Adaptive interference control 有权
标题翻译：自适应干扰控制
公开(公告)号：US08059553B2
公开(公告)日：2011-11-15
申请号：US11842864
申请日：2007-08-21
申请人： Hang Ching Jason Leung , Piu Bill Wong , Kin Nang Lau
发明人： Hang Ching Jason Leung , Piu Bill Wong , Kin Nang Lau
IPC分类号： H04L12/28
CPC分类号： H04L12/413
摘要： Systems and methods which control communications in a carrier sense multiple access environment to provide a balance between communication sensitivity and transmission availability are shown. Adaptive interference control techniques of embodiments operate to determine a media error time metric representing the time associated with receiving interfering signals. The media error time metric of embodiments is used to adjust operation of various network systems in order to adjust communication sensitivity and/or transmission availability. Desensitizing thresholds and sensitizing thresholds may be used to define operating boundaries, such that desensitizing thresholds are used to control network desensitize actions which result in decreased error times and sensitizing thresholds are used to control network sensitizing actions which result in increased error times. Error time metrics and corresponding desensitizing and sensitizing thresholds may be utilized with respect to a plurality of radios. Embodiments provide for adjustment of control parameters based upon historical operation.
摘要翻译：示出了控制载波中的通信的系统和方法感测多个接入环境以提供通信灵敏度和传输可用性之间的平衡。实施例的自适应干扰控制技术操作以确定表示与接收干扰信号相关联的时间的媒体误差时间度量。实施例的媒体错误时间度量用于调整各种网络系统的操作，以便调整通信灵敏度和/或传输可用性。可以使用脱敏阈值和敏化阈值来定义操作边界，使得使用脱敏阈值来控制导致减少错误时间的网络脱敏动作，并且使用敏化阈值来控制导致增加的错误时间的网络敏化动作。相对于多个无线电，可以利用误差时间度量和相应的减敏和敏化阈值。实施例提供了基于历史操作来调整控制参数。

2. 发明申请

US20090052411A1 ADAPTIVE INTERFERENCE CONTROL 有权
标题翻译：自适应干扰控制
公开(公告)号：US20090052411A1
公开(公告)日：2009-02-26
申请号：US11842864
申请日：2007-08-21
申请人： Hang Ching Leung , Piu Bill Wong , Kin Nang Lau
发明人： Hang Ching Leung , Piu Bill Wong , Kin Nang Lau
IPC分类号： H04B15/00 , H04L12/413
CPC分类号： H04L12/413
摘要： Systems and methods which control communications in a carrier sense multiple access environment to provide a balance between communication sensitivity and transmission availability are shown. Adaptive interference control techniques of embodiments operate to determine a media error time metric representing the time associated with receiving interfering signals. The media error time metric of embodiments is used to adjust operation of various network systems in order to adjust communication sensitivity and/or transmission availability. Desensitizing thresholds and sensitizing thresholds may be used to define operating boundaries, such that desensitizing thresholds are used to control network desensitize actions which result in decreased error times and sensitizing thresholds are used to control network sensitizing actions which result in increased error times. Error time metrics and corresponding desensitizing and sensitizing thresholds may be utilized with respect to a plurality of radios. Embodiments provide for adjustment of control parameters based upon historical operation.
摘要翻译：示出了控制载波中的通信的系统和方法感测多个接入环境以提供通信灵敏度和传输可用性之间的平衡。实施例的自适应干扰控制技术操作以确定表示与接收干扰信号相关联的时间的媒体误差时间度量。实施例的媒体错误时间度量用于调整各种网络系统的操作，以便调整通信灵敏度和/或传输可用性。可以使用脱敏阈值和敏化阈值来定义操作边界，使得使用脱敏阈值来控制导致减少错误时间的网络脱敏动作，并且使用敏化阈值来控制导致增加的错误时间的网络敏感动作。相对于多个无线电，可以利用误差时间度量和相应的减敏和敏化阈值。实施例提供了基于历史操作来调整控制参数。

3. 发明申请

US20080293410A1 METHOD AND SYSTEM FOR SENSING DISCONTIGUOUS CHANNELS IN A WIRELESS NETWORK 有权
标题翻译：用于在无线网络中感测不连续通道的方法和系统
公开(公告)号：US20080293410A1
公开(公告)日：2008-11-27
申请号：US11753675
申请日：2007-05-25
申请人： Wing Chau Chan , Kwok Shum Au , Rui Wang , Tianyu Wu , Kin Nang Lau , Shu Kwan Cheng , Ross David Murch , Wai Ho Mow
发明人： Wing Chau Chan , Kwok Shum Au , Rui Wang , Tianyu Wu , Kin Nang Lau , Shu Kwan Cheng , Ross David Murch , Wai Ho Mow
IPC分类号： H04Q7/20
CPC分类号： H04W24/08
摘要： A method for sensing channel availability in a wireless network includes receiving a measurement request message which includes a channel interval list. A first channel interval in the list includes information associated with a first starting channel number, a first number of channels, and first linkage information of the channel interval list. The method includes processing information associated with the message, generating a first list of contiguous channels, and performing at least first channel measurement to determine a first channel availability for each of the first list of contiguous channels. The method also includes determining whether the channel interval list further includes a second channel interval that needs to be processed based on at least first linkage information, and if needed, generating a second list of contiguous channels and performing at least second channel measurement to determine a second channel availability for each of the second list of contiguous channels.
摘要翻译：用于感测无线网络中的信道可用性的方法包括：接收包括信道间隔列表的测量请求消息。列表中的第一信道间隔包括与第一起始信道号，第一信道数和信道间隔列表的第一链接信息相关联的信息。该方法包括处理与消息相关联的信息，产生连续信道的第一列表，以及执行至少第一信道测量以确定第一连续信道列表中的每一个的第一信道可用性。该方法还包括确定信道间隔列表是否还包括基于至少第一链接信息需要处理的第二信道间隔，并且如果需要，生成连续信道的第二列表并执行至少第二信道测量以确定连续通道的第二列表中的每一个的第二通道可用性。

4. 发明授权

US07941302B2 Enhanced channel simulator for efficient antenna evaluation 有权
标题翻译：增强型通道模拟器，实现高效的天线评估
公开(公告)号：US07941302B2
公开(公告)日：2011-05-10
申请号：US12129896
申请日：2008-05-30
申请人： Xueyuan Zhao , Chun Kit Lee , Zhengang Pan , Chih-Lin I , Kin Nang Lau , Roger Shu Kwan Cheng
发明人： Xueyuan Zhao , Chun Kit Lee , Zhengang Pan , Chih-Lin I , Kin Nang Lau , Roger Shu Kwan Cheng
IPC分类号： G06F17/50 , H04L27/00
CPC分类号： H04B17/0087
摘要： Method and apparatus for channel simulation is disclosed. The claimed invention provides method and apparatus 1200 to simulate a propagation channel, particularly a multiple-input-multiple-input (MIMO) channel. The claimed invention further provides a method and apparatus for efficient optimization of antenna by the enhanced channel simulation. The claimed invention takes both antenna characteristics and channel characteristics as inputs, and output time-varying channel realizations to generate the system metrics as the optimization target for antenna under optimization. The claimed invention advantageous provides enhanced channel simulation to meet the accuracy requirement of antenna evaluation.
摘要翻译：公开了用于信道模拟的方法和装置。要求保护的发明提供了用于模拟传播信道，特别是多输入多输入（MIMO）信道的方法和装置1200。所要求保护的发明还提供了一种通过增强的信道模拟来有效优化天线的方法和装置。要求保护的发明将天线特性和信道特性作为输入，并输出时变信道实现，以在优化下生成作为天线优化目标的系统度量。所要求的发明有利的是提供增强的信道模拟以满足天线评估的精度要求。

5. 发明申请

US20090299717A1 ENHANCED CHANNEL SIMULATOR FOR EFFICIENT ANTENNA EVALUATION 有权
标题翻译：增强的通道模拟器，有效的天线评估
公开(公告)号：US20090299717A1
公开(公告)日：2009-12-03
申请号：US12129896
申请日：2008-05-30
申请人： Xueyuan Zhao , Chun Kit Lee , Zhengang Pan , Chih-Lin I , Kin Nang Lau , Roger Shu Kwan Cheng
发明人： Xueyuan Zhao , Chun Kit Lee , Zhengang Pan , Chih-Lin I , Kin Nang Lau , Roger Shu Kwan Cheng
IPC分类号： G06F17/50
CPC分类号： H04B17/0087
摘要： Method and apparatus for channel simulation is disclosed. The claimed invention provides method and apparatus 1200 to simulate a propagation channel, particularly a multiple-input-multiple-input (MIMO) channel. The claimed invention further provides a method and apparatus for efficient optimization of antenna by the enhanced channel simulation. The claimed invention takes both antenna characteristics and channel characteristics as inputs, and output time-varying channel realizations to generate the system metrics as the optimization target for antenna under optimization. The claimed invention advantageous provides enhanced channel simulation to meet the accuracy requirement of antenna evaluation.
摘要翻译：公开了用于信道模拟的方法和装置。要求保护的发明提供了用于模拟传播信道，特别是多输入多输入（MIMO）信道的方法和装置1200。所要求保护的发明还提供了一种通过增强的信道模拟来有效优化天线的方法和装置。要求保护的发明将天线特性和信道特性作为输入，并输出时变信道实现，以在优化下生成作为天线优化目标的系统度量。所要求的发明有利的是提供增强的信道模拟以满足天线评估的精度要求。

6. 发明授权

US07583637B2 Methods of controlling data rate in wireless communications systems 有权
标题翻译：无线通信系统中数据速率控制的方法
公开(公告)号：US07583637B2
公开(公告)日：2009-09-01
申请号：US10355140
申请日：2003-01-31
申请人： Kin Nang Lau , Youjian Liu , Martin H. Meyers , Susan Wu Sanders
发明人： Kin Nang Lau , Youjian Liu , Martin H. Meyers , Susan Wu Sanders
IPC分类号： H04W4/00
CPC分类号： H04W28/22 , H04B2201/70703 , H04L1/0002 , H04L1/0007 , H04L47/10 , H04L47/14 , H04L47/29 , H04W24/00
摘要： In an aspect of the method, a received data packet is decoded in order to determine a packet error rate value, and an average package error value for N received data packets is updated based on the determined packet error rate value. The updated average packet error rate value is then compared against a threshold value and a data rate request is issued based on this comparison. In another aspect, a response to a transmitted data packet is received, the response being related to an average packet error rate value. The average packet error rate value is compared against a threshold and a data rate is modified based on the comparison. In each of the above aspects, a data rate control margin that is used to overcome channel estimate errors resulting from transmission delays may be dynamically adjusted, e.g., in real time, in order to optimize system resources.
摘要翻译：在该方法的一方面，对接收的数据分组进行解码，以确定分组错误率值，并且基于所确定的分组错误率值来更新N个接收到的数据分组的平均包误差值。然后将更新的平均分组错误率值与阈值进行比较，并且基于该比较发布数据速率请求。在另一方面，接收对发送的数据分组的响应，响应与平均分组错误率值相关。将平均分组错误率值与阈值进行比较，并且基于比较修改数据速率。在上述每个方面中，用于克服由传输延迟引起的信道估计误差的数据速率控制余量可以例如实时地动态地调整，以优化系统资源。

7. 发明申请

US20050041750A1 System and method for multi-access MIMO channels with feedback capacity constraint 有权
标题翻译：具有反馈容量约束的多接入MIMO信道的系统和方法
公开(公告)号：US20050041750A1
公开(公告)日：2005-02-24
申请号：US10643841
申请日：2003-08-19
申请人： Kin Nang Lau
发明人： Kin Nang Lau
IPC分类号： H04L1/02 , H04L1/06 , H04L25/02
CPC分类号： H04L25/0242 , H04L1/06
摘要： Systems and methods of MIMO wireless communication system with partial feedback are disclosed. In one embodiment, a base station estimates the channel matrices of the K mobile units and transmits an index value corresponding to each of the estimated channel matrix. Each mobile unit selects a power control matrix and beam-forming matrix based on the received index value and transmits its data stream to the base station using the selected power control and beam-forming matrix. A method for generating the sets of power control matrices, beam-forming matrices, and partitions of the channel matrix space is disclosed.
摘要翻译：公开了具有部分反馈的MIMO无线通信系统的系统和方法。在一个实施例中，基站估计K个移动单元的信道矩阵，并且发送与估计的信道矩阵中的每一个对应的索引值。每个移动单元基于接收到的索引值选择功率控制矩阵和波束形成矩阵，并使用所选择的功率控制和波束形成矩阵将其数据流发送到基站。公开了一种用于生成功率控制矩阵，波束形成矩阵和信道矩阵空间的分区的集合的方法。

8. 发明授权

US08280443B2 WLAN access point with extended coverage area 有权
标题翻译：具有扩展覆盖区域的WLAN接入点
公开(公告)号：US08280443B2
公开(公告)日：2012-10-02
申请号：US10903911
申请日：2004-07-30
申请人： Meixia Tao , Cheong Yui Wong , Yan Wang , Kin Nang Lau , Ross D. Murch , Soung C. Liew , Douglas R. George
发明人： Meixia Tao , Cheong Yui Wong , Yan Wang , Kin Nang Lau , Ross D. Murch , Soung C. Liew , Douglas R. George
IPC分类号： H04M1/00
CPC分类号： H04B7/0617 , H04B7/0682 , H04B7/0691 , H04B7/0695 , H04B7/082 , H04B7/088 , H04W16/30 , H04W84/12 , H04W88/08
摘要： Disclosed are systems and methods which provide high bandwidth data communication with respect to a large coverage area using smart antenna and/or directional antenna (referred to herein as multi-beam antenna) technology. Circuitry may be provided at a WLAN AP to provide selection of particular antenna beams used in the downlink and/or uplink, control of multicast transmission, control of unicast transmission, and to provide antenna pattern shaping techniques. Embodiments implement multi-beam antenna technology with little or no hardware modifications to AP circuitry. Other embodiments implement multi-beam technology using radio front-end and/or radio hardware modifications to AP circuitry. Various diversity techniques may be implemented, such as selection diversity, maximum ratio combining, and equal gain combing. To provide desired antenna pattern shaping, phase offsets with respect to a signal as transmitted in each antenna beam may be employed.
摘要翻译：公开了使用智能天线和/或定向天线（本文中称为多波束天线）技术提供相对于大覆盖区域的高带宽数据通信的系统和方法。可以在WLAN AP处提供电路以提供在下行链路和/或上行链路中使用的特定天线波束的选择，多播传输的控制，单播传输的控制，以及提供天线模式整形技术。实施例实现对AP电路几乎没有或没有硬件修改的多波束天线技术。其他实施例使用对AP电路的无线电前端和/或无线电硬件修改来实现多波束技术。可以实现各种分集技术，例如选择分集，最大比组合和等增益梳理。为了提供期望的天线图案整形，可以采用相对于在每个天线波束中发送的信号的相位偏移。

9. 发明授权

US08081972B2 Method and system for sensing discontiguous channels in a wireless network 有权
标题翻译：用于检测无线网络中不连续通道的方法和系统
公开(公告)号：US08081972B2
公开(公告)日：2011-12-20
申请号：US11753675
申请日：2007-05-25
申请人： Wing Chau Chan , Kwok Shum Au , Rui Wang , Tianyu Wu , Kin Nang Lau , Shu Kwan Cheng , Ross David Murch , Wai Ho Mow
发明人： Wing Chau Chan , Kwok Shum Au , Rui Wang , Tianyu Wu , Kin Nang Lau , Shu Kwan Cheng , Ross David Murch , Wai Ho Mow
IPC分类号： H04W4/00 , H04B7/00 , H04B15/00
CPC分类号： H04W24/08
摘要： A method for sensing channel availability in a wireless network includes receiving a measurement request message which includes a channel interval list. A first channel interval in the list includes information associated with a first starting channel number, a first number of channels, and first linkage information of the channel interval list. The method includes processing information associated with the message, generating a first list of contiguous channels, and performing at least first channel measurement to determine a first channel availability for each of the first list of contiguous channels. The method also includes determining whether the channel interval list further includes a second channel interval that needs to be processed based on at least first linkage information, and if needed, generating a second list of contiguous channels and performing at least second channel measurement to determine a second channel availability for each of the second list of contiguous channels.
摘要翻译：用于感测无线网络中的信道可用性的方法包括：接收包括信道间隔列表的测量请求消息。列表中的第一信道间隔包括与第一起始信道号，第一信道数和信道间隔列表的第一链接信息相关联的信息。该方法包括处理与消息相关联的信息，产生连续信道的第一列表，以及执行至少第一信道测量以确定第一连续信道列表中的每一个的第一信道可用性。该方法还包括确定信道间隔列表是否还包括基于至少第一链接信息需要处理的第二信道间隔，并且如果需要，生成连续信道的第二列表并执行至少第二信道测量以确定连续通道的第二列表中的每一个的第二通道可用性。

10. 发明授权

US07761059B2 Method of transmitting or receiving with constrained feedback information 有权
标题翻译：使用约束反馈信息进行发送或接收的方法
公开(公告)号：US07761059B2
公开(公告)日：2010-07-20
申请号：US10445823
申请日：2003-05-28
申请人： Kin Nang Lau
发明人： Kin Nang Lau
IPC分类号： H04B1/00
CPC分类号： H04W52/42 , H04B7/0408 , H04B7/0617 , H04B7/0626 , H04B7/0663
摘要： A method of transmitting or receiving with constrained feedback information. A transmitter transmits a plurality of transmit signals from at least one transmit antenna. The plurality of transmit signals are based on one or more input signals, one or more power gains, and one or more beamformer matrices. The plurality of transmit signals are received as at least one receive signal, at at least one receive antenna of a receiver. The receiver generates the constrained feedback information and transmits the constrained feedback information back to the at least one transmit antenna. The transmitter selects at least one of the power gains and at least one of the beamformer matrices for a subsequent transmission based on the constrained feedback information.
摘要翻译：一种利用约束反馈信息进行发送或接收的方法。发射机从至少一个发射天线发送多个发射信号。多个发射信号基于一个或多个输入信号，一个或多个功率增益和一个或多个波束形成器矩阵。多个发送信号作为至少一个接收信号被接收在接收机的至少一个接收天线处。接收器产生受约束的反馈信息，并将约束的反馈信息发送回至少一个发射天线。发射机基于约束的反馈信息来选择功率增益中的至少一个和用于后续传输的波束形成器矩阵中的至少一个。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式