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1.发明授权Methods and systems for deriving seed position of a subscriber station in support of unassisted GPS-type position determination in a wireless communication system 有权用于导出用户站的种子位置以支持无线通信系统中的无辅助GPS型位置确定的方法和系统公开(公告)号：US07450064B2
公开(公告)日：2008-11-11
申请号：US11244529
申请日：2005-10-05
CPC分类号： G01S19/24 , G01S19/252 , H04W64/00
摘要： In a method and system for deriving a seed position of a subscriber station in a wireless communications system in supporting unassisted GPS-type position determination is provided, the subscriber station receives overhead messages from the wireless communications system, and derives the seed position from the parameter values. The subscriber station may use a data structure in its memory and map possible parameter values to corresponding positions that may serve as the seed positions.
摘要翻译： 在用于在无线通信系统中获取用户站的种子位置的方法和系统中，用于支持无辅助GPS型位置确定，用户站从无线通信系统接收开销消息，并从参数值导出种子位置。 订户站可以在其存储器中使用数据结构，并将可能的参数值映射到可用作种子位置的相应位置。
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2.发明授权公开(公告)号：US06873910B2
公开(公告)日：2005-03-29
申请号：US10278694
申请日：2002-10-22
IPC分类号： G01S1/00 , G01S19/09 , G01S19/24 , G01S19/25 , G01S19/28 , G01S19/29 , G01S19/45 , G01S19/46 , H04W64/00 , G01S5/04 , G01C21/36
CPC分类号： H04B1/7077 , G01S5/0268 , G01S19/24 , G01S19/25 , G01S19/28 , G01S19/29 , H04B1/70754
摘要： A method of and system for searching for position determination signals using a plurality of progressively more sensitive search modes comprising a first level mode, a second mode, and at least one higher level mode. If any of the search window parameters exceed prescribed limits, a first level search is performed, and the search window parameters are refined responsive to the ensuing search results so they are within the prescribed limits. Then, the second level search is performed, and measurements derived from the ensuing search results. If the measurements satisfy selected measurement sufficiency criteria, additional searching within the position fix attempt is avoided. If the measurements do not satisfy the selected measurement sufficiency criteria, a higher level, more sensitive search is performed.
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公开(公告)号：US20080112468A1
公开(公告)日：2008-05-15
申请号：US11932628
申请日：2007-10-31
摘要： An apparatus and method are disclosed for achieving receiver diversity. A wireless unit includes a plurality of antennas, an antenna selector to select one or more antennas from the plurality of antennas, a processor with input data from an inertial sensor for monitoring the orientation of the wireless unit. Based on the input data, the processor commands the antenna selector to select one or more antennas. In one aspect, the processor is a diversity processor. Based on the input data from the inertial sensor, the diversity processor computes the combination of the received signals. In another aspect, the wireless unit further includes a baseband processor to process the output of the diversity processor for a particular unit application.
摘要翻译： 公开了一种用于实现接收机分集的装置和方法。 无线单元包括多个天线，天线选择器，用于从多个天线中选择一个或多个天线;处理器，具有来自惯性传感器的输入数据，用于监视无线单元的方向。 基于输入数据，处理器命令天线选择器选择一个或多个天线。 在一个方面，处理器是分集处理器。 基于来自惯性传感器的输入数据，分集处理器计算接收信号的组合。 在另一方面，无线单元还包括用于处理特定单元应用的分集处理器的输出的基带处理器。
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4.发明授权Apparatus and method for CDMA time pseudolite for repeater identification 有权用于中继器识别的CDMA时间伪卫星的装置和方法公开(公告)号：US07292188B2
公开(公告)日：2007-11-06
申请号：US10955274
申请日：2004-09-29
申请人： Douglas N. Rowitch
发明人： Douglas N. Rowitch
摘要： Apparatus and method for resolving repeater location ambiguities in a CDMA network using a CDMA Time Pseudolite. The CDMA Time Pseudolite includes a CDMA receiver to receive a CDMA signal with an embedded CDMA timing, a baseband processor to extract the CDMA timing and to adjust the CDMA timing to derive a signal with GNSS-like timing; and a GNSS transmitter to generate a GNSS-like signal and to transmit the GNSS-like signal to a mobile station. In one embodiment, the CDMA Time Pseudolite is situated at or nearby a CDMA signal repeater so that a mobile station may unambiguously identify a received CDMA signal as being transmitted by a particular CDMA signal repeater and then using that received CDMA signal for position determination of the mobile station.
摘要翻译： 使用CDMA时间伪随机解决CDMA网络中的中继器位置模糊度的装置和方法。 CDMA时间伪波包括用于接收具有嵌入式CDMA定时的CDMA信号的CDMA接收机，基带处理器提取CDMA定时并调整CDMA定时以导出具有类似GNSS的定时的信号; 以及GNSS发射器，用于产生类GNSS信号，并将GNSS类信号发射到移动台。 在一个实施例中，CDMA时间伪随机位于CDMA信号中继器或附近，使得移动台可以明确地将接收到的CDMA信号识别为由特定的CDMA信号中继器发送，然后使用该接收的CDMA信号进行位置确定 移动台。
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公开(公告)号：US07127011B2
公开(公告)日：2006-10-24
申请号：US10232637
申请日：2002-08-29
申请人： Douglas N. Rowitch
发明人： Douglas N. Rowitch
IPC分类号： H03D1/04
摘要： A method of and system for detecting whether a peak of a correlation function derived from a received signal is due to a jammer. The peak is within a localized portion of the correlation function which has a total number of peaks. In one embodiment, the total number of peaks is compared to a threshold number of peaks, and the peak is identified as being due to a jammer if the total number of peaks equals or exceeds a threshold number of peaks. In a second embodiment, the peak energy in relation to a noise estimate for the localized portion of the correlation function is compared to a jammer threshold. The peak is identified as being due to a jammer if the peak energy in relation to the noise estimate is less than or equal to the jammer threshold.
摘要翻译： 用于检测从接收信号导出的相关函数的峰值是否是干扰的方法和系统。 该峰值在具有峰值总数的相关函数的局部部分内。 在一个实施例中，将峰值的总数与阈值数量的峰值进行比较，并且如果峰值的总数等于或超过阈值峰值，则峰值被识别为由于干扰。 在第二实施例中，相对于相关函数的局部化部分的噪声估计的峰值能量与干扰阈值进行比较。 如果与噪声估计相关的峰值能量小于或等于干扰阈值，则峰值被识别为由于干扰。
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公开(公告)号：US06304991B1
公开(公告)日：2001-10-16
申请号：US09205511
申请日：1998-12-04
申请人： Douglas N. Rowitch , Fuyun Ling
发明人： Douglas N. Rowitch , Fuyun Ling
IPC分类号： G06F1110
CPC分类号： H03M13/2789 , H03M13/271 , H03M13/275 , H03M13/2764 , H03M13/2771 , H03M13/2957
摘要： A turbo code interleaver using linear congruential sequences may be employed as a two-dimensional interleaver in a turbo coder that also includes first and second constituent encoders. The interleaver and the first encoder are each configured to receive input bits. The first encoder produces output symbols therefrom. The interleaver receives the input bits sequentially by row. A linear congruential sequence recursion algorithm within the interleaver serves to pseudo-randomly rearrange, or shuffle, the bits within each row of the interleaver. The bits are then output from the interleaver sequentially by column. The second encoder is configured to receive the interleaved bits from the interleaver. The second encoder produces output symbols therefrom. The two streams of output symbols are multiplexed together, with appropriate puncturing. If desired, the linear congruential recursion sequence can be generated in reverse. Also if desired, a bit reversal technique can be used in the interleaver to rearrange, or shuffle, the rows of the interleaver.
摘要翻译： 使用线性同余序列的turbo码交织器可以用作也包括第一和第二组成编码器的turbo编码器中的二维交织器。 交织器和第一编码器被配置为接收输入位。 第一编码器从其产生输出符号。 交织器按行顺序接收输入位。 交织器内的线性同余序列递归算法用于对交织器的每一行内的比特进行伪随机重排或混洗。 然后从列中逐行地从交织器输出这些位。 第二编码器被配置为从交织器接收交织的比特。 第二编码器从其产生输出符号。 输出符号的两个流被多路复用在一起，并进行适当的删截。 如果需要，可以相反地生成线性同余递归序列。 此外，如果需要，可以在交织器中使用位反转技术来重排或混洗交织器的行。
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公开(公告)号：US09368868B2
公开(公告)日：2016-06-14
申请号：US11932628
申请日：2007-10-31
摘要： An apparatus and method are disclosed for achieving receiver diversity. A wireless unit includes a plurality of antennas, an antenna selector to select one or more antennas from the plurality of antennas, a processor with input data from an inertial sensor for monitoring the orientation of the wireless unit. Based on the input data, the processor commands the antenna selector to select one or more antennas. In one aspect, the processor is a diversity processor. Based on the input data from the inertial sensor, the diversity processor computes the combination of the received signals. In another aspect, the wireless unit further includes a baseband processor to process the output of the diversity processor for a particular unit application.
摘要翻译： 公开了一种用于实现接收机分集的装置和方法。 无线单元包括多个天线，天线选择器，用于从多个天线中选择一个或多个天线;处理器，具有来自惯性传感器的输入数据，用于监视无线单元的方向。 基于输入数据，处理器命令天线选择器选择一个或多个天线。 在一个方面，处理器是分集处理器。 基于来自惯性传感器的输入数据，分集处理器计算接收信号的组合。 在另一方面，无线单元还包括用于处理特定单元应用的分集处理器的输出的基带处理器。
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公开(公告)号：US07657230B2
公开(公告)日：2010-02-02
申请号：US10233096
申请日：2002-08-29
申请人： Douglas N. Rowitch
发明人： Douglas N. Rowitch
CPC分类号： H04L1/0059 , G01S19/22 , H04L1/0065
摘要： A method of and system for detecting an interfering multi-path condition is provided. A parameter is determined from a pulse of a correlation function derived from a received signal. The parameter is examined to determine if it is inconsistent with a non-interfering multi-path hypothesis. If so, an interfering multi-path condition is detected.
摘要翻译： 提供了一种用于检测干扰多径条件的方法和系统。 根据从接收信号导出的相关函数的脉冲来确定参数。 检查参数以确定它是否与非干扰多径假说不一致。 如果是这样，则检测到干扰多径条件。
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9.发明授权Data messaging efficiency for an assisted wireless position determination system 有权辅助无线位置确定系统的数据通讯效率公开(公告)号：US06861980B1
公开(公告)日：2005-03-01
申请号：US10854981
申请日：2004-05-26
摘要： An assisted wireless position determination system includes a plurality of base stations and a plurality of wireless devices, such as mobile telephones and personal digital assistants, adapted to communicate with the base stations. The wireless position determination system also includes a position determination system for determining the geographic position of the wireless devices. The position determination system includes a position determination entity (PDE) that is connected to the base stations and serves as a processing server for computing the position of the wireless devices. The system and method reduces or eliminates redundant and superfluous data. In addition, the system and method ensure that the wireless device is not loaded with additional capacity, and that the wireless device is provided with precise location information. The embodiments of the system and method of the invention are compliant with the TIA/EIA IS-801 standard or other standards.
摘要翻译： 辅助无线位置确定系统包括适于与基站通信的多个基站和多个无线设备，诸如移动电话和个人数字助理。 无线位置确定系统还包括用于确定无线设备的地理位置的位置确定系统。 位置确定系统包括连接到基站并用作用于计算无线设备的位置的处理服务器的位置确定实体（PDE）。 该系统和方法减少或消除了冗余和多余的数据。 另外，系统和方法确保无线设备没有加载额外的容量，并且无线设备被提供精确的位置信息。 本发明的系统和方法的实施例符合TIA / EIA IS-801标准或其他标准。
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公开(公告)号：US06825805B2
公开(公告)日：2004-11-30
申请号：US10233128
申请日：2002-08-29
申请人： Douglas N. Rowitch
发明人： Douglas N. Rowitch
IPC分类号： H04B7185
CPC分类号： G01S19/28
摘要： A method of and system for performing a search for signals useful in determining the position of an entity. A first search is performed as part of a position determination attempt, and measurements are derived from the ensuing search results. Additional searching within the position determination attempt is avoided if the measurements satisfy one or more selected exit criteria. However, a second search is conducted if the measurements do not satisfy the one or more selected exit criteria.
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