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1. 发明申请

US20080212553A1 LOW LATENCY FREQUENCY SWITCHING 有权
标题翻译：低延迟频率切换
公开(公告)号：US20080212553A1
公开(公告)日：2008-09-04
申请号：US11924578
申请日：2007-10-25
申请人： Da-shan Shiu , Li Zhang , Eugene Sy , David Malonado , Upkar Dhaliwal
发明人： Da-shan Shiu , Li Zhang , Eugene Sy , David Malonado , Upkar Dhaliwal
IPC分类号： H04J1/00
CPC分类号： H03G3/3036
摘要： Techniques for improved low latency frequency switching are disclosed. In one embodiment, a controller receives a frequency switch command and generates a frequency switch signal at a time determined in accordance with a system timer. In another embodiment, gain calibration is initiated subsequent to the frequency switch signal delayed by the expected frequency synthesizer settling time. In yet another embodiment, DC cancellation control and gain control are iterated to perform gain calibration, with signaling to control the iterations without need for processor intervention. Various other embodiments are also presented. Aspects of the embodiments disclosed may yield the benefit of reducing latency during frequency switching, allowing for increased measurements at alternate frequencies, reduced time spent on alternate frequencies, and the capacity and throughput improvements that follow from minimization of disruption of an active communication session and improved neighbor selection.
摘要翻译：公开了用于改进的低延迟频率切换的技术。在一个实施例中，控制器接收频率切换命令，并在根据系统定时器确定的时间产生频率切换信号。在另一个实施例中，在频率切换信号延迟预期频率合成器建立时间之后启动增益校准。在另一个实施例中，迭代DC取消控制和增益控制以执行增益校准，具有控制迭代的信令，而不需要处理器干预。还提出了各种其它实施例。所公开的实施例的方面可以产生在频率切换期间减少等待时间的优点，允许在替代频率下的增加的测量，减少在替代频率上花费的时间，以及从最小化主动通信会话的中断并改进的容量和吞吐量改进邻居选择。

2. 发明授权

US08565121B2 Low latency frequency switching 有权
标题翻译：低延迟频率切换
公开(公告)号：US08565121B2
公开(公告)日：2013-10-22
申请号：US11924578
申请日：2007-10-25
申请人： Da-shan Shiu , Li Zhang , Eugene Sy , David Malonado , Upkar Dhaliwal
发明人： Da-shan Shiu , Li Zhang , Eugene Sy , David Malonado , Upkar Dhaliwal
IPC分类号： H04J3/06
CPC分类号： H03G3/3036
摘要： Techniques for improved low latency frequency switching are disclosed. In one embodiment, a controller receives a frequency switch command and generates a frequency switch signal at a time determined in accordance with a system timer. In another embodiment, gain calibration is initiated subsequent to the frequency switch signal delayed by the expected frequency synthesizer settling time. In yet another embodiment, DC cancellation control and gain control are iterated to perform gain calibration, with signaling to control the iterations without need for processor intervention. Various other embodiments are also presented. Aspects of the embodiments disclosed may yield the benefit of reducing latency during frequency switching, allowing for increased measurements at alternate frequencies, reduced time spent on alternate frequencies, and the capacity and throughput improvements that follow from minimization of disruption of an active communication session and improved neighbor selection.
摘要翻译：公开了用于改进的低延迟频率切换的技术。在一个实施例中，控制器接收频率切换命令，并在根据系统定时器确定的时间产生频率切换信号。在另一个实施例中，在频率切换信号延迟预期频率合成器建立时间之后启动增益校准。在另一个实施例中，迭代DC取消控制和增益控制以执行增益校准，具有控制迭代的信令，而不需要处理器干预。还提出了各种其它实施例。所公开的实施例的方面可以产生在频率切换期间减少等待时间的优点，允许在替代频率下的增加的测量，减少在替代频率上花费的时间，以及从最小化主动通信会话的中断并改进的容量和吞吐量改进邻居选择。

3. 发明授权

US07307480B2 Low latency frequency switching 有权
标题翻译：低延迟频率切换
公开(公告)号：US07307480B2
公开(公告)日：2007-12-11
申请号：US10422271
申请日：2003-04-24
申请人： Da-shan Shiu , Li Zhang , Eugene Sy
发明人： Da-shan Shiu , Li Zhang , Eugene Sy
IPC分类号： G01R23/00 , H04Q7/34
CPC分类号： H03G3/3036
摘要： Techniques for improved low latency frequency switching are disclosed. In one embodiment, a controller receives a frequency switch command and generates a frequency switch signal at a time determined in accordance with a system timer. In another embodiment, gain calibration is initiated subsequent to the frequency switch signal delayed by the expected frequency synthesizer settling time. In yet another embodiment, DC cancellation control and gain control are iterated to perform gain calibration, with signaling to control the iterations without need for processor intervention. Various other embodiments are also presented. Aspects of the embodiments disclosed may yield the benefit of reducing latency during frequency switching, allowing for increased measurements at alternate frequencies, reduced time spent on alternate frequencies, and the capacity and throughput improvements that follow from minimization of disruption of an active communication session and improved neighbor selection.
摘要翻译：公开了用于改进的低延迟频率切换的技术。在一个实施例中，控制器接收频率切换命令，并在根据系统定时器确定的时间产生频率切换信号。在另一个实施例中，在频率切换信号延迟预期频率合成器建立时间之后启动增益校准。在另一个实施例中，迭代DC取消控制和增益控制以执行增益校准，具有控制迭代的信令，而不需要处理器干预。还提出了各种其它实施例。所公开的实施例的方面可以产生在频率切换期间减少等待时间的优点，允许在替代频率下的增加的测量，减少在替代频率上花费的时间，以及从最小化主动通信会话的中断并改进的容量和吞吐量改进邻居选择。

4. 发明申请

US20080233995A1 POWER CONTROL FOR A CHANNEL WITH MULTIPLE FORMATS IN A COMMUNICATION SYSTEM 有权
标题翻译：在通信系统中具有多个格式的通道的功率控制
公开(公告)号：US20080233995A1
公开(公告)日：2008-09-25
申请号：US12111092
申请日：2008-04-28
申请人： Da-shan Shiu , Serge Willenegger , Richard Chi , Parvathanathan Subrahmanya , Chih-Ping Hsu
发明人： Da-shan Shiu , Serge Willenegger , Richard Chi , Parvathanathan Subrahmanya , Chih-Ping Hsu
IPC分类号： H04B7/00
CPC分类号： H04W52/12 , H04W52/20 , H04W52/267 , H04W52/283 , H04W52/286 , H04W52/44
摘要： Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.
摘要翻译：用于更有效地控制使用多种格式（例如，速率，传输格式）的数据传输的发射功率的技术。给定数据信道（例如，传输信道）的不同格式可能需要不同的目标SNIR来实现特定的BLER。在一个方面，可以为每个数据信道的每个格式指定单个目标BLER。在另一方面，提供各种功率控制方案以实现用于不同格式的不同目标SNIR。在第一功率控制方案中，为多种格式维护多个单独的外环。对于每个格式，其关联的外部循环尝试设置目标SNIR，使得为该格式指定的目标BLER被实现。在第二功率控制方案中，保持多个单独的外环，并且基站进一步对不同格式的发射功率电平进行不同的调整。

5. 发明授权

US07251467B2 Telecommunications using a tunable oscillator 有权
标题翻译：电信使用可调振荡器
公开(公告)号：US07251467B2
公开(公告)日：2007-07-31
申请号：US10684771
申请日：2003-10-14
申请人： Andrew Sendonaris , Da-shan Shiu , Dominic Gerard Farmer , Jeremy H. Lin , Parvathanathan Subrahmanya , Thomas K. Rowland
发明人： Andrew Sendonaris , Da-shan Shiu , Dominic Gerard Farmer , Jeremy H. Lin , Parvathanathan Subrahmanya , Thomas K. Rowland
IPC分类号： H04B1/06 , H04L7/04
CPC分类号： H04L27/0014 , G01S19/235 , H04B1/3805 , H04L2027/0077
摘要： Systems and techniques are disclosed relating to wireless communications. These systems and techniques involve wireless communications wherein a device may be configured to recover an information signal from a carrier using a reference signal, detect a frequency error in the information signal; and periodically tune the reference signal to reduce the frequency error.
摘要翻译：公开了与无线通信有关的系统和技术。这些系统和技术涉及无线通信，其中设备可以被配置为使用参考信号从载波恢复信息信号，检测信息信号中的频率误差; 并定期调谐参考信号以减少频率误差。

6. 发明授权

US07089030B2 De-boosting in a communications environment 有权
标题翻译：在通信环境中提升效能
公开(公告)号：US07089030B2
公开(公告)日：2006-08-08
申请号：US10644494
申请日：2003-08-19
申请人： Alkinoos Hector Vayanos , Durga Prasad Malladi , Da-shan Shiu
发明人： Alkinoos Hector Vayanos , Durga Prasad Malladi , Da-shan Shiu
IPC分类号： H04B7/00 , H04J1/12
CPC分类号： H04W52/265 , H04L1/0002 , H04L1/0003 , H04L1/0006 , H04L1/0009 , H04L1/0066 , H04L1/007 , H04L1/1664 , H04L1/1819 , H04L1/20 , H04W52/267
摘要： Systems and techniques are disclosed relating to communications. The systems and techniques involve transmitting to a remote location a first signal at a first energy level followed by a second signal at a second energy level, determining a target transmission energy level as a function of a target quality parameter at the remote location, and computing the second energy level as a function of the target transmission energy level and the first energy level. It is emphasized that this abstract is provided solely to assist a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译：公开了与通信相关的系统和技术。所述系统和技术涉及以第一能量级别向远程位置发送第一信号，随后是第二能量级的第二信号，确定作为远程位置处的目标质量参数的函数的目标传输能级，以及计算作为目标传输能级和第一能级的函数的第二能级。要强调的是，该摘要仅仅是为了帮助搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

7. 发明授权

US06885711B2 Turbo decoder with multiple scale selections 有权
标题翻译：具有多尺度选择的Turbo解码器
公开(公告)号：US06885711B2
公开(公告)日：2005-04-26
申请号：US09893046
申请日：2001-06-27
申请人： Da-shan Shiu , Rajesh Sundaresan
发明人： Da-shan Shiu , Rajesh Sundaresan
IPC分类号： H03M13/09 , H03M13/29 , H03M13/39 , H03M13/45 , H04L1/00
CPC分类号： H03M13/3905 , H03M13/2957 , H03M13/2975 , H03M13/3707 , H03M13/3776 , H03M13/3911 , H03M13/6337 , H03M13/6577 , H03M13/658
摘要： Techniques to improve the performance of a Turbo decoder when scale information for the bits in a code segment to be decoded is not known. A number of hypotheses are formed for the code segment, with each hypothesis corresponding to a particular set of one or more values for a set of one or more parameters used for decoding the code segment. For the MAP decoding scheme, these parameters may be for the sequence of scaling factors used to scale the bits prior to decoding and/or a scale used to evaluate a (e.g., min*) function for the MAP decoding. The code segment is decoded based on the MAP decoding scheme and in accordance with each hypothesis. The quality of the decoded result for each hypothesis is determined based on one or more performance metrics. The decoded bits for the best hypothesis are provided as the Turbo decoder output.
摘要翻译：当解码的码段中的位的缩放信息不为人知时，提高Turbo解码器的性能的技术。为代码段形成多个假设，每个假设对应于用于解码代码段的一个或多个参数的集合的一个或多个值的特定集合。对于MAP解码方案，这些参数可以用于在解码之前用于缩放比特的缩放因子序列和/或用于评估用于MAP解码的（例如，min *）功能的比例。根据MAP解码方案并根据每个假设对代码段进行解码。基于一个或多个性能度量来确定每个假设的解码结果的质量。提供最佳假设的解码位作为Turbo解码器输出。

8. 发明授权

US08059584B2 Inter-frequency neighbor list searching 有权
标题翻译：频间邻居列表搜索
公开(公告)号：US08059584B2
公开(公告)日：2011-11-15
申请号：US12029849
申请日：2008-02-12
申请人： Da-shan Shiu , Thomas B Wilborn , Roland Reinhard Rick , Srinivasa Rao Nagaram , Chalapathi Rao Emani , Ramachandran Gurumoorthy , Jesus Chao , Steve Doerfler , Peter Ang , Srividya Kunisetti , Gwang-Hyun Gho , Thomas Nelson Bailey
发明人： Da-shan Shiu , Thomas B Wilborn , Roland Reinhard Rick , Srinivasa Rao Nagaram , Chalapathi Rao Emani , Ramachandran Gurumoorthy , Jesus Chao , Steve Doerfler , Peter Ang , Srividya Kunisetti , Gwang-Hyun Gho , Thomas Nelson Bailey
IPC分类号： H04W4/00
CPC分类号： H04W36/0083 , H04B1/70754 , H04W36/14 , H04W88/06
摘要： Techniques for inter-frequency neighbor list searching are disclosed. Embodiments disclosed herein address the need for inter-frequency neighbor list searching. In one embodiment, a searcher is deployed to search a PN space with a first set of search parameters and to return search results. A subset of those results is selected, along with a previously saved search result, to form a set of PN locations for a second search. The second search is performed on a window around each of the PN locations, using a second set of search parameters. The maximum peak from the second search is saved for use in future iterations. In one embodiment, the subset is selected as the highest energy level peaks from the first search. In one embodiment, if a maximum peak is deemed to correspond to a valid base station when the position of that maximum peak is within a pre-determined time offset from a previous maximum peak.
摘要翻译：公开了频间邻居列表搜索技术。本文公开的实施例解决了对频间邻居列表搜索的需要。在一个实施例中，部署搜索器以利用第一组搜索参数搜索PN空间并返回搜索结果。选择这些结果的子集以及先前保存的搜索结果以形成用于第二搜索的一组PN位置。使用第二组搜索参数，在围绕每个PN位置的窗口上执行第二搜索。第二次搜索的最大峰值被保存以供将来的迭代使用。在一个实施例中，子集被选择为来自第一搜索的最高能级峰值。在一个实施例中，如果当该最大峰值的位置在与先前最大峰值的预定时间偏移之内时，认为最大峰值对应于有效基站。

9. 发明授权

US07664519B2 Power control for multiple transport channels in a wireless communication system 有权
标题翻译：无线通信系统中多个传输信道的功率控制
公开(公告)号：US07664519B2
公开(公告)日：2010-02-16
申请号：US10750302
申请日：2003-12-30
申请人： Chih-Ping Hsu , Parvathanathan Subrahmanya , Da-shan Shiu , Hyukjun Oh , Christopher C. Riddle , Nitin Kasturi
发明人： Chih-Ping Hsu , Parvathanathan Subrahmanya , Da-shan Shiu , Hyukjun Oh , Christopher C. Riddle , Nitin Kasturi
IPC分类号： H04B1/00 , H04B1/04 , H04Q7/20
CPC分类号： H04W52/12 , H04W52/34 , H04W52/36
摘要： Techniques are provided to control the transmit power for data transmission on multiple transport channels having different signal quality (SIR) targets. A single SIR target is maintained for all transport channels, and this SIR target is adjusted based only on active transport channels. For each update interval, a data processor processes at least one data block received in the current update interval on at least one of the transport channels and provides the status of each received data block. A controller increases the SIR target based on an up step if any received data block is erased and decreases the SIR target based on a down step if all received data blocks are good. If any received data block is erased, the down step used to adjust the SIR target may be set to the smallest down step size required by all transport channels with erased data blocks.
摘要翻译：提供技术来控制具有不同信号质量（SIR）目标的多个传输信道上的数据传输的发射功率。对于所有传输信道维持单个SIR目标，并且该SIR目标仅基于主动传输信道进行调整。对于每个更新间隔，数据处理器处理在当前更新间隔中在至少一个传输信道上接收的至少一个数据块，并提供每个接收到的数据块的状态。如果任何接收的数据块被擦除，则控制器基于上升步骤增加SIR目标，并且如果所有接收到的数据块都良好，则基于下降步骤降低SIR目标。如果任何接收到的数据块被擦除，则用于调整SIR目标的下降步骤可以被设置为具有被擦除的数据块的所有传输信道所需的最小的下降步长。

10. 发明申请

US20070230544A1 ADAPTIVE PILOT FILTER FOR A WIRELESS COMMUNICATION SYSTEM 失效
标题翻译：适用于无线通信系统的自适应导频滤波器
公开(公告)号：US20070230544A1
公开(公告)日：2007-10-04
申请号：US11761329
申请日：2007-06-11
申请人： Parvathanathan Subrahmanya , Da-shan Shiu , Avneesh Agrawal
发明人： Parvathanathan Subrahmanya , Da-shan Shiu , Avneesh Agrawal
IPC分类号： H04B1/00 , H04B1/10 , H04B1/707
CPC分类号： H04L25/0228 , H04B1/7117 , H04B2201/70701 , H04L25/0214
摘要： Techniques to filter pilot symbols for a pilot in an “adaptive” manner to provide an improved estimate of the response of a communication channel. A received signal may experience different channel conditions at different times, and different multipaths may also experience different channel conditions even when received close in time. A pilot filter with an adaptive response is used to provide an improved estimate of the channel response. Various adaptive pilot filtering schemes may be used. In a first scheme, the channel conditions are estimated based on the quality of the received pilot. In a second scheme, the channel conditions are estimated based on the quality of the pilot estimates (i.e., the filtered pilot symbols). For each scheme, a particular filter response is selected based on the estimated quality of either the received pilot or the pilot estimates.
摘要翻译：用于以“自适应”方式滤波导频的导频符号以提供对通信信道的响应的改进估计的技术。接收到的信号可能在不同时间经历不同的信道条件，即使在接收时间短的情况下，不同的多路径也可能经历不同的信道条件。使用具有自适应响应的导频滤波器来提供信道响应的改进的估计。可以使用各种自适应导频滤波方案。在第一方案中，基于接收到的导频的质量来估计信道条件。在第二方案中，基于导频估计的质量（即，滤波的导频符号）来估计信道条件。对于每个方案，基于所接收的导频或导频估计的估计质量来选择特定的滤波器响应。

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