专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明授权

US07847752B2 Switching schemes for multiple antennas 有权
标题翻译：多个天线的切换方案
公开(公告)号：US07847752B2
公开(公告)日：2010-12-07
申请号：US12545496
申请日：2009-08-21
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H01Q21/00
CPC分类号： H04B7/0811
摘要： Signals from multiple antennas are evaluated in a wireless device having one receiver chain and the antenna receiving the highest quality signals is selected. The signal quality from the multiple antennas may be evaluated using the short symbols in the preamble or the beacon signals and the antennas dynamically selected to improve the performance of the wireless communications device.
摘要翻译：在具有一个接收机链的无线设备中评估来自多个天线的信号，并且选择接收最高质量信号的天线。可以使用前导码中的短符号或动态选择的信标信号和天线来评估来自多个天线的信号质量，以改善无线通信设备的性能。

92. 发明授权

US07839836B2 Arranging SDMA poll groups by response length 有权
标题翻译：通过响应长度安排SDMA轮询组
公开(公告)号：US07839836B2
公开(公告)日：2010-11-23
申请号：US10759472
申请日：2004-01-15
申请人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
发明人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
IPC分类号： H04B7/00 , H04H20/71 , H04J3/16 , H04W4/00
CPC分类号： H04W74/02 , H04W16/28 , H04W52/24 , H04W52/34 , H04W52/42
摘要： A base station may organize poll groups into groups having similar predicted durations of subsequent responses. In one embodiment predicted durations may be provided by the devices that are to be polled. In another embodiment the predicted durations may be based on past responses from the devices that are to be polled.
摘要翻译：基站可以将轮询组组织成具有相似的后续响应预测持续时间的组。在一个实施例中，预期持续时间可以由待轮询的设备提供。在另一个实施例中，预测持续时间可以基于来自要轮询的设备的过去响应。

93. 发明申请

US20100227565A1 TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统中信道质量数据的传输
公开(公告)号：US20100227565A1
公开(公告)日：2010-09-09
申请号：US12645830
申请日：2009-12-23
申请人： Hongmei Sun , Changlong Xu , Qinghua Li , Yuan Zhu , Rath Vannithamby , Jong-Kae J.K. Fwu , Senjie Zhang , Yang Y. Gao , Hujun Yin
发明人： Hongmei Sun , Changlong Xu , Qinghua Li , Yuan Zhu , Rath Vannithamby , Jong-Kae J.K. Fwu , Senjie Zhang , Yang Y. Gao , Hujun Yin
IPC分类号： H04B17/00
CPC分类号： H04W68/08 , H04B7/0478 , H04W68/02 , H04W84/045
摘要： Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location.
摘要翻译：简而言之，根据一个或多个实施例，在下行链路信道中接收从发射机发送的数据，并且在第一上行链路信道或第二上行链路信道中将信道质量数据反馈给发射机。信道质量数据在第一上行链路信道上以较低的速率进行反馈，并且在存在要反馈的数据量较大的情况下，信道质量数据以较高速率在第二上行链路信道上反馈。可以利用链路自适应来选择第二上行链路信道上的传输速率，其中至少部分地基于信道条件或用户位置来选择传输速率。

94. 发明申请

US20100220610A1 MAC SLOT ALIGNMENT AMONG MULTIPLE WIRELESS STATIONS 有权
标题翻译： MAC SLOT对准在多个无线站
公开(公告)号：US20100220610A1
公开(公告)日：2010-09-02
申请号：US12394583
申请日：2009-02-27
申请人： Qinghua Li , Xintian E. Lin , Qiang Li , Jing Zhu , Xingang Guo , Alexey Khoryaev
发明人： Qinghua Li , Xintian E. Lin , Qiang Li , Jing Zhu , Xingang Guo , Alexey Khoryaev
IPC分类号： H04L12/26 , H04L27/28
CPC分类号： H04L27/2656 , H04L27/2678 , H04W56/0005
摘要： A device in a wireless network receives signals and determines media access control (MAC) slot boundaries of the received signals. The MAC slot boundaries are averaged in time, and a local slot boundary is modified in response thereto. The local MAC slot boundary is modified by less than ten percent of a short interframe space until the local MAC slot boundary is within one orthogonal frequency division multiplexing (OFDM) cyclic prefix duration of the averaged MAC slot boundaries.
摘要翻译：无线网络中的设备接收信号并确定接收信号的媒体接入控制（MAC）时隙边界。 MAC时隙边界在时间上被平均，并且响应于此而修改本地时隙边界。本地MAC时隙边界被修改为小于帧间间隔空间的百分之十，直到本地MAC时隙边界在平均MAC时隙边界的正交频分复用（OFDM）循环前缀持续时间内。

95. 发明授权

US07778657B2 Method and apparatus to perform power control in a wireless network 有权
标题翻译：在无线网络中执行功率控制的方法和装置
公开(公告)号：US07778657B2
公开(公告)日：2010-08-17
申请号：US11391054
申请日：2006-03-28
申请人： Xintian E. Lin , Qinghua Li
发明人： Xintian E. Lin , Qinghua Li
IPC分类号： H04W52/06
CPC分类号： H04W52/241
摘要： Techniques are provided that allow power control and/or hand off operations to be performed in a wireless network in a manner that can enhance overall network throughput. In at least one embodiment, signal to noise ratio (SNR) and a signal to interference ratio (SIR) are obtained for a first mobile device within a wireless network. The SNR and SIR are then used to perform power control in the network (e.g., for the first mobile device). The SNR and SIR may also be used to facilitate hand off operations. In one approach, it may be determined whether the SNR and the SIR are each high or low, based on comparison with predetermined threshold values, in order to make a power control decision.
摘要翻译：提供了能够以能够提高整体网络吞吐量的方式在无线网络中执行功率控制和/或切换操作的技术。在至少一个实施例中，为无线网络内的第一移动设备获得信噪比（SNR）和信号干扰比（SIR）。然后使用SNR和SIR来执行网络中的功率控制（例如，对于第一移动设备）。 SNR和SIR也可以用于促成切换操作。在一种方法中，为了进行功率控制决定，可以基于与预定阈值的比较来确定SNR和SIR是否都是高或低。

96. 发明授权

US07778599B2 Aggregated channel feedback 有权
标题翻译：聚合通道反馈
公开(公告)号：US07778599B2
公开(公告)日：2010-08-17
申请号：US11617403
申请日：2006-12-28
申请人： Qinghua Li , Guangjie Li , Xintian E. Lin
发明人： Qinghua Li , Guangjie Li , Xintian E. Lin
IPC分类号： H04B1/00 , H04B7/00 , H04B17/00
CPC分类号： H04B7/0632 , H04B7/0634 , H04B7/0862 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04L1/0036 , H04L1/1671 , H04L1/1812
摘要： Embodiments of methods and apparatus for providing aggregated feedback from a subscriber station to a base station are generally described herein. Some embodiments may include a channel response predictor to predict channel responses for future feedback periods and a feedback information generator to aggregate feedback information, generated based on the predicted channel responses, into an aggregated information block that is to be transmitted to a base station. Other embodiments may be described and claimed.
摘要翻译：这里一般地描述用于从用户站向基站提供聚合反馈的方法和装置的实施例。一些实施例可以包括用于预测未来反馈周期的信道响应的信道响应预测器，以及反馈信息发生器，以将基于预测信道响应生成的反馈信息聚合成要发送到基站的聚合信息块。可以描述和要求保护其他实施例。

97. 发明申请

US20100172432A1 METHOD AND APPARATUS USING A BASE CODEBOOK STRUCTURE FOR BEAMFORMING 失效
标题翻译：使用基准代码结构进行波束形成的方法和装置
公开(公告)号：US20100172432A1
公开(公告)日：2010-07-08
申请号：US12638015
申请日：2009-12-15
申请人： Qinghua Li , Shanshan Zheng , Hongming Zheng , Guangjie Li , Senjie Zhang , Alexei Davdov
发明人： Qinghua Li , Shanshan Zheng , Hongming Zheng , Guangjie Li , Senjie Zhang , Alexei Davdov
IPC分类号： H04L27/00
CPC分类号： H04B7/0456 , H04B7/0452 , H04B7/0465 , H04B7/0626 , H04B7/0639 , H04L5/0007 , H04L5/0037
摘要： Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.
摘要翻译：描述了用于无线通信的预编码方案的技术。方法和装置可以包括用于通信系统的第一装置，用于使用信道信息，一个或多个缩放因子和一个或多个整数来表示复矢量来确定用于闭环发射波束成形方案的波束形成结构。波束形成结构可以包括码字，码本和码字索引。描述和要求保护其他实施例。

98. 发明授权

US07751777B2 System and method for transmitting data in a communication network 有权
标题翻译：用于在通信网络中传输数据的系统和方法
公开(公告)号：US07751777B2
公开(公告)日：2010-07-06
申请号：US11855569
申请日：2007-09-14
申请人： Qinghua Li , Xintian E. Lin
发明人： Qinghua Li , Xintian E. Lin
IPC分类号： H04B3/36 , H04B7/14 , H04B1/60 , H04B17/02 , H04B1/00 , H04B15/00
CPC分类号： H04B7/2606
摘要： Disclosed is a system and method for transmitting data from a first base station to a first destination subscriber station (DSS). The first base station is capable of transmitting data directly to the first DSS through a direct route. Co-channel interference is present at neighboring cells during the transmission of the data through the direct route. The method includes selecting a relay station from a plurality of relay stations for transmitting data to the first DSS via a relay route. The relay route includes a route from the first base station to the relay station and further from the relay station to the first DSS. A height of the relay station is lower than a height of the first base station. Further, the method includes transmitting the data through the relay route when a throughput of the relay route is greater than a throughput of the direct route by a predetermined threshold.
摘要翻译：公开了一种用于从第一基站向第一目的用户台（DSS）发送数据的系统和方法。第一基站能够通过直接路由将数据直接发送到第一DSS。在通过直接路由传输数据期间，相邻小区存在同信道干扰。该方法包括从多个中继站中选择一个中继站，用于经由中继路由向第一DSS发送数据。中继路由包括从第一基站到中继站以及从中继站到第一DSS的路由。中继站的高度低于第一基站的高度。此外，该方法包括当中继路由的吞吐量大于直接路由的吞吐量预定阈值时通过中继路由发送数据。

99. 发明申请

US20100164802A1 Arrangements for beam refinement in a wireless network 有权
标题翻译：在无线网络中进行光束细化的安排
公开(公告)号：US20100164802A1
公开(公告)日：2010-07-01
申请号：US12317968
申请日：2008-12-31
申请人： Qinghua Li , Huaning Niu
发明人： Qinghua Li , Huaning Niu
IPC分类号： H01Q3/00
CPC分类号： H04W72/046 , H01Q1/246 , H01Q3/30 , H04B7/0617 , H04B7/0695 , H04B7/0857 , H04B7/088
摘要： In some embodiments a beamforming method is disclosed. The method can include transmitting a beam having a channel defined by a maximum ration transmission vector (MRT) and receiving a first response from a receiver, where the first response has first information such as parameters related to the transmitted beam. Using the parameters and the initial MRT another directional transmission can be made. A similar process can determine a maximum combining ratio for a receiver. Set up communications between the transmitter and the receiver can be reduced by omitting data from transmission that can be acquired by other means such as from memory or calculations. Additional embodiments are also disclosed.
摘要翻译：在一些实施例中，公开了一种波束形成方法。该方法可以包括发送具有由最大比率传输向量（MRT）定义的信道并且从接收机接收第一响应的波束，其中第一响应具有诸如与发射波束相关的参数的第一信息。使用参数和初始MRT可以进行另一个定向传输。类似的过程可以确定接收机的最大组合比。可以通过省略来自传输的数据来减少发射机和接收机之间的通信，这些数据可以通过诸如从存储器或计算之类的其他手段获得。还公开了另外的实施例。

100. 发明授权

US07706455B2 Multicarrier transmitter for multiple-input multiple-output communication systems and methods for puncturing bits for pilot tones 失效
标题翻译：用于多输入多输出通信系统的多载波发射机和用于对导频音进行删截比特的方法
公开(公告)号：US07706455B2
公开(公告)日：2010-04-27
申请号：US11234972
申请日：2005-09-26
申请人： Alexei V. Davydov , Qinghua Li
发明人： Alexei V. Davydov , Qinghua Li
IPC分类号： H04L27/28
CPC分类号： H04L1/0041 , H04L1/0068 , H04L1/0625 , H04L5/0023 , H04L5/0048 , H04L27/2626
摘要： Embodiments of a transmitter and methods for puncturing bits are generally described herein. Other embodiments may be described and claimed. In some embodiments, a multicarrier transmitter performs bit puncturing for pilot subcarriers in two operations. The first operation may uniformly removes bits from an encoded bit stream to achieve a predetermined code rate reserving space for pilot subcarriers of a predetermined number of antennas. The second operation may remove bits from each spatial data stream after interleaving in a manner to achieve approximately equal spacing between the punctured bits before interleaving. In this way, a conventional interleaver may be used. The second operation reserves space for pilot subcarriers when a greater number of antennas than the predetermined number are used.
摘要翻译：发射机的实施例和穿孔比特的方法一般在此描述。可以描述和要求保护其他实施例。在一些实施例中，多载波发射机在两个操作中对导频子载波执行比特删截。第一操作可以均匀地从编码比特流中移除比特以实现预定数量的天线的导频子载波的预定码率预留空间。第二操作可以在交织之后从每个空间数据流中移除比特，以便在交织之前在穿孔比特之间实现大致相等的间隔。以这种方式，可以使用常规的交织器。当使用比预定数量更多的天线时，第二操作为导频子载波保留空间。

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