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1. 发明授权

US07215935B2 Segmented CDMA searching 有权
标题翻译：分段CDMA搜索
公开(公告)号：US07215935B2
公开(公告)日：2007-05-08
申请号：US10053398
申请日：2002-01-17
申请人： Subramanya P. Rao , Da-shan Shiu , Jeremy H. Lin , Jeong Geun Kim
发明人： Subramanya P. Rao , Da-shan Shiu , Jeremy H. Lin , Jeong Geun Kim
IPC分类号： H04B1/18 , H04B1/16
CPC分类号： H04B1/7077 , H04B1/70753 , H04B2201/70707
摘要： Techniques for segmented CDMA searching are disclosed. In one aspect, a searcher comprises a plurality of storage elements selectable for performing a plurality of segmentable search tasks, each storage element operable for storage of and access to state information for one of the plurality of search tasks. In another aspect, a first search task is interrupted in progress, the state information for the first task is stored, a second search task is performed, and the first search task is continued using the stored state information. In yet another aspect, a search task is segmented into smaller search segments, sized to fit within contiguous available time in the searcher. Various other aspects of the invention are also presented. These aspects have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译：公开了分段CDMA搜索的技术。在一个方面，搜索器包括可选择用于执行多个可分割搜索任务的多个存储元件，每个存储元件可操作用于存储和访问多个搜索任务之一的状态信息。在另一方面，第一搜索任务在进行中中断，存储第一任务的状态信息，执行第二搜索任务，并且使用所存储的状态信息继续第一搜索任务。在另一方面，搜索任务被分割成较小的搜索段，其大小适合于搜索者中的连续可用时间。还提出了本发明的各种其它方面。这些方面具有电路面积和搜索时间效率的优点，从而降低了成本，增加了待机时间，提高了采集速度，提高了信号传输质量，提高了数据吞吐量，降低了功耗，提高了整体系统容量。

2. 发明授权

US08355685B2 Segmented CDMA searching 有权
公开(公告)号：US08355685B2
公开(公告)日：2013-01-15
申请号：US11746031
申请日：2007-05-08
申请人： Subramanya P. Rao , Da-Shan Shiu , Jeremy H. Lin , Jeong Geun Kim
发明人： Subramanya P. Rao , Da-Shan Shiu , Jeremy H. Lin , Jeong Geun Kim
IPC分类号： H04B1/18 , H04B1/16
CPC分类号： H04B1/7077 , H04B1/70753 , H04B2201/70707
摘要： Techniques for segmented CDMA searching are disclosed. In one aspect, a searcher comprises a plurality of storage elements selectable for performing a plurality of segmentable search tasks, each storage element operable for storage of and access to state information for one of the plurality of search tasks. In another aspect, a first search task is interrupted in progress, the state information for the first task is stored, a second search task is performed, and the first search task is continued using the stored state information. In yet another aspect, a search task is segmented into smaller search segments, sized to fit within contiguous available time in the searcher. Various other aspects of the invention are also presented. These aspects have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.

3. 发明申请

US20100067396A1 OPTIMIZING THROUGHPUT IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中优化通路
公开(公告)号：US20100067396A1
公开(公告)日：2010-03-18
申请号：US12552206
申请日：2009-09-01
申请人： Tao Cui , Feng Lu , Anil Kumar Goteti , Vignesh Sethuraman , Subramanya P. Rao , Parvathanathan Subrahmanya
发明人： Tao Cui , Feng Lu , Anil Kumar Goteti , Vignesh Sethuraman , Subramanya P. Rao , Parvathanathan Subrahmanya
IPC分类号： H04L12/26
CPC分类号： H04W28/0236 , H04L1/0026 , H04L1/203 , H04W28/0205
摘要： A method for optimizing throughput in a wireless communication system is disclosed. A target metric is estimated based on previous acknowledgment data. A channel quality indicator offset is determined based on the target metric. A channel quality indicator is adjusted based on the channel quality indicator offset. The channel quality indicator indicates the quality of a wireless transmission channel.
摘要翻译：公开了一种用于优化无线通信系统中的吞吐量的方法。基于先前的确认数据来估计目标度量。基于目标度量确定信道质量指示符偏移量。基于信道质量指示符偏移量调整信道质量指示符。信道质量指示符表示无线传输信道的质量。

4. 发明授权

US08848549B2 Optimizing throughput in a wireless communication system 有权
标题翻译：优化无线通信系统中的吞吐量
公开(公告)号：US08848549B2
公开(公告)日：2014-09-30
申请号：US12552206
申请日：2009-09-01
申请人： Tao Cui , Feng Lu , Anil Kumar Goteti , Vignesh Sethuraman , Subramanya P. Rao , Parvathanathan Subrahmanya
发明人： Tao Cui , Feng Lu , Anil Kumar Goteti , Vignesh Sethuraman , Subramanya P. Rao , Parvathanathan Subrahmanya
IPC分类号： H04L12/26
CPC分类号： H04W28/0236 , H04L1/0026 , H04L1/203 , H04W28/0205
摘要： A method for optimizing throughput in a wireless communication system is disclosed. A target metric is estimated based on previous acknowledgment data. A channel quality indicator offset is determined based on the target metric. A channel quality indicator is adjusted based on the channel quality indicator offset. The channel quality indicator indicates the quality of a wireless transmission channel.
摘要翻译：公开了一种用于优化无线通信系统中的吞吐量的方法。基于先前的确认数据来估计目标度量。基于目标度量确定信道质量指示符偏移量。基于信道质量指示符偏移量调整信道质量指示符。信道质量指示符表示无线传输信道的质量。

5. 发明授权

US08391429B2 Methods for determining reconstruction weights in a MIMO system with successive interference cancellation 有权
标题翻译：用于确定具有连续干扰消除的MIMO系统中的重建权重的方法
公开(公告)号：US08391429B2
公开(公告)日：2013-03-05
申请号：US12547952
申请日：2009-08-26
申请人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
发明人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
IPC分类号： H04B1/10
CPC分类号： H04B7/0854 , H04B7/0452 , H04J11/004 , H04L1/0026 , H04L1/0048 , H04L1/06 , H04L1/1812
摘要： Certain aspects provide a method for determining decoding order and reconstruction weights for decoded streams to be cancelled in a MIMO system with successive interference cancellation, based on estimates of the channel characteristics, the received composite signal and parameters of the system.
摘要翻译：某些方面提供了一种用于基于信道特性，接收到的复合信号和系统参数的估计，确定具有连续干扰消除的MIMO系统中要解除的解码流的解码顺序和重构权重的方法。

6. 发明申请

US20110051832A1 METHODS FOR DETERMINING RECONSTRUCTION WEIGHTS IN A MIMO SYSTEM WITH SUCCESSIVE INTERFERENCE CANCELLATION 有权
标题翻译：在具有连续干扰消除的MIMO系统中确定重构权重的方法
公开(公告)号：US20110051832A1
公开(公告)日：2011-03-03
申请号：US12547952
申请日：2009-08-26
申请人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
发明人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
IPC分类号： H04B7/02
CPC分类号： H04B7/0854 , H04B7/0452 , H04J11/004 , H04L1/0026 , H04L1/0048 , H04L1/06 , H04L1/1812
摘要： Certain aspects provide a method for determining decoding order and reconstruction weights for decoded streams to be cancelled in a MIMO system with successive interference cancellation, based on estimates of the channel characteristics, the received composite signal and parameters of the system.
摘要翻译：某些方面提供了一种用于基于信道特性，接收到的复合信号和系统参数的估计，确定具有连续干扰消除的MIMO系统中要解除的解码流的解码顺序和重构权重的方法。

7. 发明授权

US08385878B2 Systems, methods, and apparatus for activity control in a wireless communications device 有权
标题翻译：用于无线通信设备中的活动控制的系统，方法和装置
公开(公告)号：US08385878B2
公开(公告)日：2013-02-26
申请号：US11478258
申请日：2006-06-28
申请人： Anil S. Rao , Subramanya P. Rao
发明人： Anil S. Rao , Subramanya P. Rao
IPC分类号： H04B1/16
CPC分类号： H04W52/028 , H04W56/0035 , Y02D70/1242 , Y02D70/142 , Y02D70/144 , Y02D70/24
摘要： Embodiments include methods of activity control in which a time of initiation of an active period of a discontinuous reception (DRX) cycle is based on a value calculated with respect to a wireless signal received during an active period of a previous DRX cycle.
摘要翻译：实施例包括活动控制的方法，其中不连续接收（DRX）周期的活跃期的开始时间是基于相对于在先前的DRX周期的活动期间期间接收到的无线信号计算的值。

8. 发明授权

US08335286B2 Methods for determining decoding order in a MIMO system with successive interference cancellation 有权
标题翻译：用于在具有连续干扰消除的MIMO系统中确定解码顺序的方法
公开(公告)号：US08335286B2
公开(公告)日：2012-12-18
申请号：US12547922
申请日：2009-08-26
申请人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
发明人： Gokhan Mergen , Subramanya P. Rao , Jonathan Sidi
IPC分类号： H04B1/10
CPC分类号： H04B7/0413 , H04B1/71072 , H04L1/0002 , H04L1/0036 , H04L1/0048 , H04L1/06 , H04L1/1845 , H04L25/0224
摘要： Certain aspects provide a method for determining decoding order and reconstruction weights for decoded streams to be cancelled in a MIMO system with successive interference cancellation, based on estimates of the channel characteristics, the received composite signal and parameters of the system.
摘要翻译：某些方面提供一种用于基于信道特性，接收到的复合信号和系统的参数的估计，确定具有连续干扰消除的MIMO系统中要解除的解码流的解码顺序和重构权重的方法。

9. 发明申请

US20110268019A1 USING JOINT DECODING ENGINE IN A WIRELESS DEVICE 有权
标题翻译：在无线设备中使用联合解码引擎
公开(公告)号：US20110268019A1
公开(公告)日：2011-11-03
申请号：US12769916
申请日：2010-04-29
申请人： Jia Tang , Atul A. Salvekar , Shantanu Khare , Gokhan Mergen , Jonathan Sidi , Jong Hyeon Park , Subramanya P. Rao , Abhinav Gupta
发明人： Jia Tang , Atul A. Salvekar , Shantanu Khare , Gokhan Mergen , Jonathan Sidi , Jong Hyeon Park , Subramanya P. Rao , Abhinav Gupta
IPC分类号： H04W40/00 , H04L27/28
CPC分类号： H04L25/03305 , H04L1/0048 , H04L1/0054 , H04L25/03331
摘要： A method for using a joint decoding engine in a wireless device is disclosed. A first symbol stream and a second symbol stream in a received multiple input multiple output (MIMO) signal is determined. A scaled channel estimate for a wireless transmission channel and a scaled noise covariance of the MIMO signal are also determined. The scaled channel estimate and the first symbol stream are whitened. Max log maximum a posteriori (MLM) processing is performed on the whitened first symbol stream to produce a first data stream. The first data stream may be de-rate matched and decoded to produce a decoded first data stream.
摘要翻译：公开了一种在无线装置中使用联合解码引擎的方法。确定接收的多输入多输出（MIMO）信号中的第一符号流和第二符号流。还确定了无线传输信道的缩放信道估计和MIMO信号的缩放噪声协方差。缩放的信道估计和第一符号流被白化。对白化的第一符号流执行最大对数最大后验（MLM）处理以产生第一数据流。第一数据流可以被去速率匹配和解码以产生解码的第一数据流。

10. 发明授权

US06768768B2 Method and apparatus for step two W-CDMA searching 有权
标题翻译：用于步骤二W-CDMA搜索的方法和装置
公开(公告)号：US06768768B2
公开(公告)日：2004-07-27
申请号：US09957377
申请日：2001-09-19
申请人： Subramanya P. Rao , Sivarama Venkatesan , Gwang-Hyun Gho , Avneesh Agrawal , Daisuke Terasawa
发明人： Subramanya P. Rao , Sivarama Venkatesan , Gwang-Hyun Gho , Avneesh Agrawal , Daisuke Terasawa
IPC分类号： H04L2730
CPC分类号： H04B1/7077 , H04B1/70735 , H04B1/70752 , H04B1/7083 , H04B1/709 , H04B1/7093 , H04B2201/70701 , H04B2201/70707
摘要： Techniques for searching in asynchronous systems are disclosed. In one aspect, a plurality of codes, such as SSCs, are correlated with a received signal at a plurality of offsets to produce a code/slot energy corresponding to each code/slot boundary pair. Unique subsets of the code/slot energies are summed to produce code sequence energies, the maximum of which indicates a located code sequence and slot boundary. In another aspect, the correlation is performed by sub-correlating the received signal with a common sequence, and performing a Fast Hadamard Transform (FHT) on the results. In yet another aspect, one sub-correlator can be used to search a plurality of peaks simultaneously. Various other aspects of the invention are also presented. These aspects collectively have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译：公开了在异步系统中搜索的技术。在一个方面，诸如SSC的多个代码与多个偏移处的接收信号相关，以产生对应于每个代码/时隙边界对的代码/时隙能量。代码/时隙能量的独特子集被相加以产生代码序列能量，其最大值表示定位的代码序列和时隙边界。在另一方面，通过将接收到的信号与公共序列进行子相关，并对结果进行快速哈达马（Fad Hadamard）变换（FHT）来执行相关性。在另一方面，可以使用一个子相关器同时搜索多个峰值。还提出了本发明的各种其它方面。这些方面共同具有电路面积和搜索时间效率的优点，其转化为降低的成本，增加的待机时间，增加的采集速度，更高质量的信号传输，增加的数据吞吐量，降低的功率以及改善的整体系统容量。

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