公开(公告)号：US09198149B2

公开(公告)日：2015-11-24

申请号：US13432320

申请日：2012-03-28

申请人： Mark Hahm ,  Severine Catreux ,  Nelson Sollenberger

发明人： Mark Hahm ,  Severine Catreux ,  Nelson Sollenberger

IPC分类号： H04W56/00 ,  H04W36/18 ,  H03M13/37 ,  H03M13/39 ,  H04L1/00

CPC分类号： H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

摘要： Disclosed are various embodiments involving a two-step searcher for cell discovery. Multiple scrambling codes associated with multiple neighboring cells are obtained. Slot timing is obtained for a received signal based at least in part on a detection of primary synchronization peak energy in the received signal. One of the scrambling codes for decoding the received signal is identified based at least in part on testing multiple scrambling code hypotheses in parallel during an accumulation time period of the received signal in response to obtaining the slot timing.

摘要翻译： 公开了涉及用于细胞发现的两步搜索器的各种实施例。 获得与多个相邻小区相关联的多个扰码。 至少部分地基于对接收信号中的主同步峰值能量的检测，对于接收信号获得时隙定时。 至少部分地基于在接收到的信号的累积时间段期间响应于获得时隙定时来并行测试多个扰码假设来识别用于解码接收信号的扰码之一。

公开(公告)号：US20130143554A1

公开(公告)日：2013-06-06

申请号：US13432320

申请日：2012-03-28

申请人： Mark Hahm ,  Severine Catreux ,  Nelson Sollenberger

发明人： Mark Hahm ,  Severine Catreux ,  Nelson Sollenberger

IPC分类号： H04W48/16

CPC分类号： H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

摘要： Disclosed are various embodiments involving a two-step searcher for cell discovery. Multiple scrambling codes associated with multiple neighboring cells are obtained. Slot timing is obtained for a received signal based at least in part on a detection of primary synchronization peak energy in the received signal. One of the scrambling codes for decoding the received signal is identified based at least in part on testing multiple scrambling code hypotheses in parallel during an accumulation time period of the received signal in response to obtaining the slot timing.

摘要翻译： 公开了涉及用于细胞发现的两步搜索器的各种实施例。 获得与多个相邻小区相关联的多个扰码。 至少部分地基于对接收信号中的主同步峰值能量的检测，对于接收信号获得时隙定时。 至少部分地基于在接收到的信号的累积时间段期间响应于获得时隙定时来并行测试多个扰码假设来识别用于解码接收信号的扰码之一。

公开(公告)号：US20130142221A1

公开(公告)日：2013-06-06

申请号：US13415487

申请日：2012-03-08

申请人： Pengfei Xia ,  Mark Hahm ,  Jaeyoung Kwak ,  Severine Catreux-Erceg ,  Nelson Sollenberger

发明人： Pengfei Xia ,  Mark Hahm ,  Jaeyoung Kwak ,  Severine Catreux-Erceg ,  Nelson Sollenberger

IPC分类号： H04B1/709

CPC分类号： H04W56/002 ,  H03M13/3723 ,  H03M13/3905 ,  H03M13/3972 ,  H04L1/005 ,  H04W36/18

摘要： Disclosed are various embodiments involving a window searcher for cell measurement. A window search is configurable and scalable as to a number of scrambling codes to be searched in parallel over a window span for each scrambling code. A received signal is descrambled. A coherent accumulation is performed on the descrambled received signal at a first subchip resolution to produce a coherent accumulation result. The coherent accumulation result is interpolated to a second subchip resolution. A non-coherent accumulation is performed on the descrambled received signal at the second subchip resolution based at least in part on the interpolated coherent accumulation result.

摘要翻译： 公开了涉及用于小区测量的窗口搜索器的各种实施例。 窗口搜索可配置和可扩展，以便在每个扰码的窗口范围内并行搜索多个扰码。 接收到的信号被解扰。 对解扰的接收信号以第一子芯片分辨率执行相干累加以产生相干累积结果。 相干累积结果被内插到第二个子芯片分辨率。 至少部分地基于内插相干累积结果，以第二子芯片分辨率对解扰频接收信号执行非相干累加。

公开(公告)号：US08565287B2

公开(公告)日：2013-10-22

申请号：US12575879

申请日：2009-10-08

申请人： Mark Hahm ,  Wei Luo ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04B1/00

CPC分类号： H04B1/711 ,  H04B1/71072 ,  H04B1/712 ,  H04J13/0044

摘要： A wireless system may receive a plurality of multipath signals from a plurality of transmitters and allocate per-cell modules for generating an interference suppressed signal from the multipath signals. Data symbols may be sequentially processed in the received multipath signals utilizing the per-cell modules and subtracting the processed symbols from a residual buffer storing the received multipath signals. Desired information received from one or more of the transmitters may be recovered utilizing the interference suppressed signal. Timing of the data symbols may be correlated utilizing a cell chip combiner. The data symbols may be descrambled utilizing conjugated scrambling codes associated with one of the plurality of transmitters. Orthogonal variable spreading factor (OVSF) codes may be generated utilizing a Walsh transform on the data symbols. Power levels of the OVSF codes may be estimated and estimated signals may be generated based on the OVSF codes and the estimated power levels.

摘要翻译： 无线系统可以从多个发射机接收多个多径信号，并且分配用于从多路径信号产生干扰抑制信号的每小区模块。 数据符号可以利用每个单元模块在所接收的多路径信号中被顺序地处理，并且从存储所接收的多径信号的残差缓冲器中减去经处理的符号。 可以使用干扰抑制信号来恢复从一个或多个发射机接收到的期望信息。 数据符号的定时可以利用单元芯片组合器进行相关。 数据符号可以利用与多个发射机之一相关联的共轭扰码进行解扰。 可以使用对数据符号的沃尔什变换来生成正交可变扩展因子（OVSF）码。 可以估计OVSF码的功率电平，并且可以基于OVSF码和估计功率电平来生成估计信号。

公开(公告)号：US08509698B2

公开(公告)日：2013-08-13

申请号：US13532410

申请日：2012-06-25

申请人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04B1/00

CPC分类号： H04B1/71075 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70702

摘要： Aspects of a method and system for a programmable interference suppression module may include receiving a communication signal comprising one or more desired signal, and one or more undesired signals. The communication signal may be utilized to generate estimated channel state information. The estimated channel state information may be formatted for use in interference suppression. A reduced interference signal may be generated from a delayed version of said communications signal and the estimated channel state information, wherein the one or more undesired signals may be attenuated. The reduced interference signal may be formatted for post-processing. The desired signals may comprise WCDMA and/or HSDPA signals, and the undesired signals may be inter-cell and/or intra-cell interference. Further processing may comprise HSDPA processing and/or RAKE finger processing. The communication signal may be a Universal Mobile Telecommunication System (UMTS) compliant signal.

摘要翻译： 用于可编程干扰抑制模块的方法和系统的方面可以包括接收包括一个或多个期望信号的通信信号以及一个或多个不需要的信号。 通信信号可用于产生估计的信道状态信息。 估计的信道状态信息可以被格式化以用于干扰抑制。 可以从所述通信信号的延迟版本和所估计的信道状态信息产生减小的干扰信号，其中所述一个或多个不需要的信号可以被衰减。 减小的干扰信号可以被格式化用于后处理。 期望的信号可以包括WCDMA和/或HSDPA信号，并且不期望的信号可以是小区间和/或小区内干扰。 进一步的处理可以包括HSDPA处理和/或RAKE手指处理。 通信信号可以是符合通用移动通信系统（UMTS）的信号。

公开(公告)号：US20110151888A1

公开(公告)日：2011-06-23

申请号：US12686623

申请日：2010-01-13

申请人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04W72/04 ,  H04B7/08

CPC分类号： H04B1/71075 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70702

摘要： Aspects of a method and system for a programmable interference suppression module may include receiving a communication signal comprising one or more desired signal, and one or more undesired signals. The communication signal may be utilized to generate estimated channel state information. The estimated channel state information may be formatted for use in interference suppression. A reduced interference signal may be generated from a delayed version of said communications signal and the estimated channel state information, wherein the one or more undesired signals may be attenuated. The reduced interference signal may be formatted for post-processing. The desired signals may comprise WCDMA and/or HSDPA signals, and the undesired signals may be inter-cell and/or intra-cell interference. Further processing may comprise HSDPA processing and/or RAKE finger processing. The communication signal may be a Universal Mobile Telecommunication System (UMTS) compliant signal.

摘要翻译： 用于可编程干扰抑制模块的方法和系统的方面可以包括接收包括一个或多个期望信号的通信信号以及一个或多个不需要的信号。 通信信号可用于产生估计的信道状态信息。 估计的信道状态信息可以被格式化以用于干扰抑制。 可以从所述通信信号的延迟版本和所估计的信道状态信息产生减小的干扰信号，其中所述一个或多个不需要的信号可以被衰减。 减小的干扰信号可以被格式化用于后处理。 期望的信号可以包括WCDMA和/或HSDPA信号，并且不期望的信号可以是小区间和/或小区内干扰。 进一步的处理可以包括HSDPA处理和/或RAKE手指处理。 通信信号可以是符合通用移动通信系统（UMTS）的信号。

公开(公告)号：US20120263030A1

公开(公告)日：2012-10-18

申请号：US13532410

申请日：2012-06-25

申请人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04W88/00

CPC分类号： H04B1/71075 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70702

摘要： Aspects of a method and system for a programmable interference suppression module may include receiving a communication signal comprising one or more desired signal, and one or more undesired signals. The communication signal may be utilized to generate estimated channel state information. The estimated channel state information may be formatted for use in interference suppression. A reduced interference signal may be generated from a delayed version of said communications signal and the estimated channel state information, wherein the one or more undesired signals may be attenuated. The reduced interference signal may be formatted for post-processing. The desired signals may comprise WCDMA and/or HSDPA signals, and the undesired signals may be inter-cell and/or intra-cell interference. Further processing may comprise HSDPA processing and/or RAKE finger processing. The communication signal may be a Universal Mobile Telecommunication System (UMTS) compliant signal.

摘要翻译： 用于可编程干扰抑制模块的方法和系统的方面可以包括接收包括一个或多个期望信号的通信信号以及一个或多个不需要的信号。 通信信号可用于产生估计的信道状态信息。 估计的信道状态信息可以被格式化以用于干扰抑制。 可以从所述通信信号的延迟版本和所估计的信道状态信息产生减小的干扰信号，其中所述一个或多个不需要的信号可以被衰减。 减小的干扰信号可以被格式化用于后处理。 期望的信号可以包括WCDMA和/或HSDPA信号，并且不期望的信号可以是小区间和/或小区内干扰。 进一步的处理可以包括HSDPA处理和/或RAKE手指处理。 通信信号可以是符合通用移动通信系统（UMTS）的信号。

公开(公告)号：US08208856B2

公开(公告)日：2012-06-26

申请号：US12686623

申请日：2010-01-13

申请人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Thirunathan Sutharsan ,  Andrew du Preez ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04B1/00

CPC分类号： H04B1/71075 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/70702

摘要： Aspects of a method and system for a programmable interference suppression module may include receiving a communication signal comprising one or more desired signal, and one or more undesired signals. The communication signal may be utilized to generate estimated channel state information. The estimated channel state information may be formatted for use in interference suppression. A reduced interference signal may be generated from a delayed version of said communications signal and the estimated channel state information, wherein the one or more undesired signals may be attenuated. The reduced interference signal may be formatted for post-processing. The desired signals may comprise WCDMA and/or HSDPA signals, and the undesired signals may be inter-cell and/or intra-cell interference. Further processing may comprise HSDPA processing and/or RAKE finger processing. The communication signal may be a Universal Mobile Telecommunication System (UMTS) compliant signal.

摘要翻译： 用于可编程干扰抑制模块的方法和系统的方面可以包括接收包括一个或多个期望信号的通信信号以及一个或多个不需要的信号。 通信信号可用于产生估计的信道状态信息。 估计的信道状态信息可以被格式化以用于干扰抑制。 可以从所述通信信号的延迟版本和所估计的信道状态信息产生减小的干扰信号，其中所述一个或多个不需要的信号可以被衰减。 减小的干扰信号可以被格式化用于后处理。 期望的信号可以包括WCDMA和/或HSDPA信号，并且不期望的信号可以是小区间和/或小区内干扰。 进一步的处理可以包括HSDPA处理和/或RAKE手指处理。 通信信号可以是符合通用移动通信系统（UMTS）的信号。

公开(公告)号：US20110075708A1

公开(公告)日：2011-03-31

申请号：US12575879

申请日：2009-10-08

申请人： Mark Hahm ,  Wei Luo ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

发明人： Mark Hahm ,  Wei Luo ,  Bin Liu ,  Jun Wu ,  Severine Catreux-Erceg ,  Shuangquan Wang

IPC分类号： H04L1/02 ,  H04B1/707

CPC分类号： H04B1/711 ,  H04B1/71072 ,  H04B1/712 ,  H04J13/0044

摘要： A wireless system may receive a plurality of multipath signals from a plurality of transmitters and allocate per-cell modules for generating an interference suppressed signal from the multipath signals. Data symbols may be sequentially processed in the received multipath signals utilizing the per-cell modules and subtracting the processed symbols from a residual buffer storing the received multipath signals. Desired information received from one or more of the transmitters may be recovered utilizing the interference suppressed signal. Timing of the data symbols may be correlated utilizing a cell chip combiner. The data symbols may be descrambled utilizing conjugated scrambling codes associated with one of the plurality of transmitters. Orthogonal variable spreading factor (OVSF) codes may be generated utilizing a Walsh transform on the data symbols. Power levels of the OVSF codes may be estimated and estimated signals may be generated based on the OVSF codes and the estimated power levels.

摘要翻译： 无线系统可以从多个发射机接收多个多径信号，并且分配用于从多路径信号产生干扰抑制信号的每小区模块。 数据符号可以利用每个单元模块在所接收的多路径信号中被顺序地处理，并且从存储所接收的多径信号的残差缓冲器中减去经处理的符号。 可以使用干扰抑制信号来恢复从一个或多个发射机接收到的期望信息。 数据符号的定时可以利用单元芯片组合器进行相关。 数据符号可以利用与多个发射机之一相关联的共轭扰码进行解扰。 可以使用对数据符号的沃尔什变换来生成正交可变扩展因子（OVSF）码。 可以估计OVSF码的功率电平，并且可以基于OVSF码和估计功率电平来生成估计信号。

公开(公告)号：US08503506B2

公开(公告)日：2013-08-06

申请号：US13588297

申请日：2012-08-17

申请人： Mark Hahm ,  Wei Luo ,  Arkady Molev-Shteiman ,  Hongwei Kong ,  Xiao-Feng Qi ,  Li Fung Chang ,  Nelson Sollenberger

发明人： Mark Hahm ,  Wei Luo ,  Arkady Molev-Shteiman ,  Hongwei Kong ,  Xiao-Feng Qi ,  Li Fung Chang ,  Nelson Sollenberger

IPC分类号： H04B1/707

CPC分类号： H04B1/712 ,  H04J11/0063 ,  H04J13/0044 ,  H04J13/0048

摘要： Aspects of a method and system for interference suppression in WCDMA systems may include one or more circuits that are operable to receive a plurality of multipath signals via one or more receiving antennas. A plurality of weighting factor values may be computed based on the received multipath signals. Estimated signals may be based on the weighting factor values. Residual signals may be generated based on received signals and the estimated signals. Addback signals may be generated based on the estimated signals and the residual signals. Updated estimated signals may be generated based on the addback signals and the weighting factor values. Incremental signals may be generated based on the updated estimated signals and addback signals. Updated residual signals may be generated based on the incremental signals and previous residual signals. The interference suppressed signals may be generated based on the updated residual signals and updated estimated signals.

摘要翻译： 用于WCDMA系统中的干扰抑制的方法和系统的方面可以包括可操作以经由一个或多个接收天线接收多个多径信号的一个或多个电路。 可以基于接收的多路径信号来计算多个加权因子值。 估计信号可以基于加权因子值。 可以基于接收的信号和估计的信号来产生残余信号。 可以基于估计的信号和残留信号来生成附加信号。 可以基于附加信号和加权因子值来生成更新的估计信号。 可以基于更新的估计信号和加法信号来产生增量信号。 可以基于增量信号和先前的剩余信号来生成更新的残留信号。 可以基于更新的残差信号和更新的估计信号来产生干扰抑制信号。