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

US08824288B2 Communications techniques for bursty noise environments 有权
标题翻译：突发噪声环境的通信技术
公开(公告)号：US08824288B2
公开(公告)日：2014-09-02
申请号：US12960614
申请日：2010-12-06
申请人： Jie Gao , Xintian Lin , Qinghua Li , Hsin-Yuo Liu
发明人： Jie Gao , Xintian Lin , Qinghua Li , Hsin-Yuo Liu
IPC分类号： H04L12/26
CPC分类号： H04L43/0811 , H04L43/10 , H04L47/14 , H04L47/22 , H04L47/263
摘要： Techniques are disclosed that involve communicating in bursty noise environments. For instance, a source device may send a probing packet to a destination device. This probing packet is for determining whether the communications medium (e.g., one or more frequency channels) is currently exhibiting a busy or jammed (e.g., due to bursty noise) condition. More particularly, based on whether an acknowledgment of the probing packet is received, the source device determines whether the channel is jammed (or busy) or clear. For example, an unacknowledged probing packet indicates that the channel is jammed or busy, while an acknowledged probing packet indicates that the channel is clear. If the channel is determined to be clear, then the source device may transmit one or more data packets to the destination device. Such data packet transmissions may be in accordance with a non rate-adaptive technique.
摘要翻译：公开了涉及在突发噪声环境中进行通信的技术。例如，源设备可以向目的地设备发送探测分组。该探测分组用于确定通信介质（例如，一个或多个频率信道）当前是否正在呈现忙或卡住（例如，由于突发噪声）条件。更具体地，基于是否接收到探测分组的确认，源设备确定信道是否被卡住（或忙）或清除。例如，未确认的探测分组指示信道被卡住或占线，而确认的探测分组指示信道是清除的。如果信道被确定为清除，则源设备可以向目的设备发送一个或多个数据分组。这样的数据分组传输可以是根据非速率自适应技术。

2. 发明申请

US20120140647A1 Communications Techniques For Bursty Noise Environments 有权
标题翻译：突发噪声环境的通信技术
公开(公告)号：US20120140647A1
公开(公告)日：2012-06-07
申请号：US12960614
申请日：2010-12-06
申请人： Jie Gao , Xintian Lin , Qinghua Li , Hsin-Yuo Liu
发明人： Jie Gao , Xintian Lin , Qinghua Li , Hsin-Yuo Liu
IPC分类号： H04L12/26
CPC分类号： H04L43/0811 , H04L43/10 , H04L47/14 , H04L47/22 , H04L47/263
摘要： Techniques are disclosed that involve communicating in bursty noise environments. For instance, a source device may send a probing packet to a destination device. This probing packet is for determining whether the communications medium (e.g., one or more frequency channels) is currently exhibiting a busy or jammed (e.g., due to bursty noise) condition. More particularly, based on whether an acknowledgment of the probing packet is received, the source device determines whether the channel is jammed (or busy) or clear. For example, an unacknowledged probing packet indicates that the channel is jammed or busy, while an acknowledged probing packet indicates that the channel is clear. If the channel is determined to be clear, then the source device may transmit one or more data packets to the destination device. Such data packet transmissions may be in accordance with a non rate-adaptive technique.
摘要翻译：公开了涉及在突发噪声环境中进行通信的技术。例如，源设备可以向目的地设备发送探测分组。该探测分组用于确定通信介质（例如，一个或多个频率信道）当前是否正在呈现忙或卡住（例如，由于突发噪声）条件。更具体地，基于是否接收到探测分组的确认，源设备确定信道是否被卡住（或忙）或清除。例如，未确认的探测分组指示信道被卡住或占线，而确认的探测分组指示信道是清除的。如果信道被确定为清除，则源设备可以向目的设备发送一个或多个数据分组。这样的数据分组传输可以是根据非速率自适应技术。

3. 发明授权

US08238456B2 Techniques to time vary pilot locations in wireless networks 有权
标题翻译：时间不同的技术使无线网络中的导频位置变化
公开(公告)号：US08238456B2
公开(公告)日：2012-08-07
申请号：US12384688
申请日：2009-04-07
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04L27/28 , H04K1/10
CPC分类号： H04L5/0048 , H04L1/0006 , H04L1/0025 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L5/0062 , H04L5/0094 , H04W72/08
摘要： An embodiment of the present invention provides an apparatus, comprising a receiver capable of selecting optimal pilot locations and providing feedback of the pilot locations to a transmitter in communication with the receiver. The optimal pilot locations may be selected by locations that avoid strong interference or platform noise at the receiver, by locations that avoid deep fading, by locations that maximize the spacing between pilot tones at the two ends of a wireless frequency band or by locations that equalize the interspacing between any two adjacent pilots.
摘要翻译：本发明的一个实施例提供了一种装置，包括能够选择最佳导频位置并且向与接收机通信的发射机提供导频位置的反馈的接收机。最佳导频位置可以由避免接收机强烈干扰或平台噪声的位置通过避免深度衰落的位置通过最大化无线频带两端的导频音之间的间隔的位置来选择，或者通过均衡的位置任何两个相邻飞行员之间的间隔。

4. 发明申请

US20070147520A1 Techniques to time vary pilot locations in wireless networks 有权
标题翻译：时间不同的技术使无线网络中的导频位置变化
公开(公告)号：US20070147520A1
公开(公告)日：2007-06-28
申请号：US11317311
申请日：2005-12-23
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04K1/10
CPC分类号： H04L5/0048 , H04L1/0006 , H04L1/0025 , H04L5/0007 , H04L5/0023 , H04L5/006 , H04L5/0062 , H04L5/0094 , H04W72/08
摘要： An embodiment of the present invention provides an apparatus, comprising a receiver 5 capable of selecting optimal pilot locations and providing feedback of the pilot locations to a transmitter in communication with the receiver. The optimal pilot locations may be selected by locations that avoid strong interference or platform noise at the receiver, by locations that avoid deep fading, by locations that maximize the spacing between pilot tones at the two ends of a wireless frequency band or by locations that equalize the interspacing between any two adjacent pilots.
摘要翻译：本发明的一个实施例提供了一种装置，包括能够选择最佳导频位置并且向与接收机通信的发射机提供导频位置的反馈的接收机5。最佳导频位置可以由避免接收机强烈干扰或平台噪声的位置通过避免深度衰落的位置通过最大化无线频带两端的导频音之间的间隔的位置来选择，或者通过均衡的位置任何两个相邻飞行员之间的间隔。

5. 发明申请

US20070116158A1 Packet detection in the presence of platform noise in a wireless network 失效
标题翻译：在无线网络中存在平台噪声的数据包检测
公开(公告)号：US20070116158A1
公开(公告)日：2007-05-24
申请号：US11322829
申请日：2005-12-30
申请人： Yongfang Guo , Xintian Lin , Qinghua Li , Stanley Ling , Jorge Myszne , David Carasso
发明人： Yongfang Guo , Xintian Lin , Qinghua Li , Stanley Ling , Jorge Myszne , David Carasso
IPC分类号： H04L27/06
CPC分类号： H04L27/0014 , H04L7/042 , H04L2027/003
摘要： Techniques are presented for improving packet detection within a wireless device in the presence of platform noise.
摘要翻译：提出了在存在平台噪声的情况下改进无线设备内的分组检测的技术。

6. 发明申请

US20060234645A1 Method and apparatus to provide low cost transmit beamforming for network devices 有权
公开(公告)号：US20060234645A1
公开(公告)日：2006-10-19
申请号：US11076195
申请日：2005-03-09
申请人： Xintian Lin , Qinghua Li
发明人： Xintian Lin , Qinghua Li
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04B7/0617 , H04B7/0421 , H04B7/0619
摘要： Techniques and structures for use in generating an approximated beamforming matrix in a MIMO based system are disclosed. The techniques and structures may be used to allow closed loop MIMO beamforming to be performed within a device that does not include singular value decomposition (SVD) circuitry.

7. 发明申请

US20060140290A1 Training symbol format for adaptively power loaded MIMO 有权
公开(公告)号：US20060140290A1
公开(公告)日：2006-06-29
申请号：US11024587
申请日：2004-12-29
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04K1/10
CPC分类号： H04W52/346 , H04B7/04 , H04L1/0618 , H04L5/0023 , H04L5/0048 , H04L27/2613
摘要： Training symbol formats are provided for use in a MIMO based wireless communication system that uses adaptive power loading. In at least one embodiment, a training symbol format is used that is capable of enhancing training symbol signal to noise ratio (SNR).

8. 发明申请

US20060120476A1 System and method capable of implicit feedback for the devices with an unequal number of transmitter and receiver chains in a wireless local area network 有权
标题翻译：能够在无线局域网中具有不等数量的发射机和接收机链的设备的隐式反馈的系统和方法
公开(公告)号：US20060120476A1
公开(公告)日：2006-06-08
申请号：US11006849
申请日：2004-12-07
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04L1/02
CPC分类号： H04L1/0675 , H04B7/0421
摘要： An embodiment of the present invention provides a wireless station (STA) capable of implicit feedback in a wireless local area network, comprising at least one power amplifier, a plurality of antennas capable of being connected with said at least one power amplifier, and a switch capable of switching the connection between said plurality of antennas and said at least one power amplifier thereby enabling said wireless station to sound a complete channel matrix for an access point (AP) in communication with said wireless station (STA).
摘要翻译：本发明的实施例提供一种能够在无线局域网中进行隐含反馈的无线站（STA），其包括至少一个功率放大器，能够与所述至少一个功率放大器连接的多个天线，以及开关能够切换所述多个天线与所述至少一个功率放大器之间的连接，从而使得所述无线台能够对与所述无线站（STA）通信的接入点（AP）发出完整的信道矩阵。

9. 发明申请

US20060056335A1 Closed loop feedback in MIMO systems 有权
公开(公告)号：US20060056335A1
公开(公告)日：2006-03-16
申请号：US10939130
申请日：2004-09-10
申请人： Xintian Lin , Qinghua Li , Ada Poon
发明人： Xintian Lin , Qinghua Li , Ada Poon
IPC分类号： H04Q7/00
CPC分类号： H04B7/0634 , H04B7/0408 , H04B7/0417 , H04B7/0617 , H04B7/0663
摘要： Feedback bandwidth may be reduced in a closed loop MIMO system by factoring non essential information out of a beamforming matrix.

10. 发明申请

US20050226277A1 Signal reception apparatus, systems, and methods 有权
标题翻译：信号接收装置，系统和方法
公开(公告)号：US20050226277A1
公开(公告)日：2005-10-13
申请号：US10814853
申请日：2004-03-30
申请人： Qinghua Li , Xintian Lin
发明人： Qinghua Li , Xintian Lin
IPC分类号： H04B7/08 , H04L1/06 , H04L5/02 , H04L27/26 , H04J3/04
CPC分类号： H04L27/2647 , H04B7/0837 , H04L1/06 , H04L5/023 , H04L27/2662
摘要： An apparatus and a system, as well as a method and article, may operate to separate, in the frequency domain, a combined plurality of asynchronous data streams received at substantially the same time into a separated plurality of data streams, converting to the time domain for detection, synchronizing, and decoding.
摘要翻译：装置和系统以及方法和物品可以在频域中操作以将基本上同时接收的多个异步数据流分离成分离的多个数据流，转换到时域用于检测，同步和解码。

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