公开(公告)号：WO2006122293A2

公开(公告)日：2006-11-16

申请号：PCT/US2006/018375

申请日：2006-05-10

Applicant: QUALCOMM INCORPORATED ,  SIMIC, Emilija, M. ,  PATRICK, Christopher ,  CHALLA, Raghu ,  ROWITCH, Douglas, N.

Inventor： SIMIC, Emilija, M. ,  PATRICK, Christopher ,  CHALLA, Raghu ,  ROWITCH, Douglas, N.

IPC: G01S13/74

CPC classification number: G01S19/235 ,  H04B1/26

Abstract: A receiver according to one embodiment includes a frequency control unit configured to receive a stream of samples including a plurality of received instances of a transmitted signal. The frequency control unit is configured to output a first correction signal (e.g. indicating a rotation) that is based on more than one of the received instances and a second correction signal (e.g. to control an oscillator) that is also based on more than one of the received instances. In some embodiments, a controlled oscillator is used to receive and/or transmit another signal, such as a signal received from a GPS space vehicle. In other embodiments, the received instances are from a GPS signal. In further embodiments, a fixed-frequency oscillator is used, and the second correction signal is used to receive and/or transmit another signal, such as a GPS signal.

Abstract translation: 根据一个实施例的接收机包括：频率控制单元，被配置为接收包括发射信号的多个接收的实例的样本流。 频率控制单元被配置为输出基于多于一个接收到的实例的第一校正信号（例如指示旋转）和还基于多个接收实例中的多于一个的第二校正信号（例如，以控制振荡器） 接收的实例。 在一些实施例中，受控振荡器用于接收和/或发送另一信号，例如从GPS空中交通工具接收的信号。 在其他实施例中，所接收的实例来自GPS信号。 在另外的实施例中，使用固定频率振荡器，并且第二校正信号用于接收和/或发送诸如GPS信号的另一信号。

公开(公告)号：WO2005119287A1

公开(公告)日：2005-12-15

申请号：PCT/US2005/018916

申请日：2005-05-26

Applicant: QUALCOMM Incorporated ,  ROWITCH, Douglas N. ,  PATRICK, Christopher

Inventor： ROWITCH, Douglas N. ,  PATRICK, Christopher

IPC: G01S1/00

CPC classification number: H04W64/00 ,  G01S19/05 ,  G01S19/25

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2004077698A1

公开(公告)日：2004-09-10

申请号：PCT/US2004/005315

申请日：2004-02-24

Applicant: QUALCOMM, INCORPORATED ,  SIMIC, Emilija, M. ,  PATRICK, Christopher ,  ROWITCH, Douglas ,  BLESSENT, Luca ,  RICK, Roland

Inventor： SIMIC, Emilija, M. ,  PATRICK, Christopher ,  ROWITCH, Douglas ,  BLESSENT, Luca ,  RICK, Roland

IPC: H04B7/26

CPC classification number: H04W64/00 ,  G01S5/0226 ,  G01S5/0273 ,  G01S5/10 ,  G01S19/09 ,  G01S19/11 ,  G01S19/46 ,  H04B7/155 ,  H04B7/2606

Abstract: A forward link repeater delay watermarking (FLRFWM) system and method that enable accurate position location of mobile stations in areas where repeaters are present by watermarking repeated signals with repeater information. A repeater watermarks a forward link signal with a (unique or non-unique) time delay modulation waveform watermark every time a signal passes through the repeater. A mobile station detects and/or identifies the time delay watermark on the forward link signal to determine repeater information that aids the network position determination entity or mobile station position location system in determining position location using AFLT and/or A-GPS systems. A forward link time delay watermarking system can be implemented to achieve low impact on FL and AFLT performance, favorable detection and identification probabilities, and short time-to-detect/identify.

Abstract translation: 一种前向链路中继器延迟水印（FLRFWM）系统和方法，其通过对具有中继器信息的重复信号进行水印来实现移动站在存在中继器的区域中的准确位置定位。 中继器每当信号通过中继器时对具有（唯一或非唯一）时间延迟调制波形水印的前向链路信号进行水印。 移动台在前向链路信号上检测和/或识别时间延迟水印，以确定使用AFLT和/或A-GPS系统来帮助网络位置确定实体或移动台位置系统确定位置定位的中继器信息。 可以实现前向链路时间延迟水印系统，以实现对FL和AFLT性能的低影响，良好的检测和识别概率，以及短时间的检测/识别。

公开(公告)号：WO2006057930A2

公开(公告)日：2006-06-01

申请号：PCT/US2005/042000

申请日：2005-11-17

Applicant: QUALCOMM INCORPORATED ,  GAAL, Peter ,  PATRICK, Christopher

Inventor： GAAL, Peter ,  PATRICK, Christopher

IPC: G01S1/00

CPC classification number: G01S19/09 ,  G01S19/23 ,  G01S19/235 ,  G01S19/29

Abstract: A receiving method and apparatus for increasing coherent integration length while receiving a positioning signal from transmitters such as GPS satellites. In order to compensate for frequency drifts that may occur in the positioning signal, a hypothesis is made as to the frequency drift, which is inserted into the receiving algorithm. Advantageously, the length of coherent integration can be increased at the expense of reducing the length of incoherent integration while keeping the total integration length the same, the net effect of which is an increase in signal detection sensitivity. The frequency drift hypothesis has any appropriate waveform; for example, approximately linear or exponential. The hypothesized frequency drift can be inserted into the receiver algorithm in any suitable place; for example, the data block may be adjusted for the hypothesized frequency drift, alternatively the reference signal may be adjusted, or the frequency samples of either the data block or the reference signal may be adjusted.

Abstract translation: 一种用于在从诸如GPS卫星的发射器接收定位信号的同时增加相干积分长度的接收方法和设备。 为了补偿定位信号中可能出现的频率漂移，对插入接收算法中的频率漂移进行了假设。 有利的是，可以增加相干积分的长度，代价是减小非相干积分的长度，同时保持总积分长度相同，其净效应是信号检测灵敏度的增加。 频率漂移假设有任何适当的波形; 例如近似线性或指数。 假设的频率漂移可以在任何合适的地方插入接收机算法中; 例如，可以针对假设的频率漂移来调整数据块，或者可以调整参考信号，或者可以调整数据块或参考信号的频率样本。

公开(公告)号：WO2005029120A3

公开(公告)日：2005-03-31

申请号：PCT/US2004/030797

申请日：2004-09-17

Applicant: QUALCOMM Incorporated ,  GUM, Arnold J. ,  PATRICK, Christopher

Inventor： GUM, Arnold J. ,  PATRICK, Christopher

IPC: G01S5/14

Abstract: A wireless communication device, known as a mobile station (MS), contains a conventional wireless communication system and further comprises a wireless computer network communication subsystem and may also include GPS capability. The operator of the MS may utilize any or all of these subsystems to determine the current position of the MS. Based on the current position of the MS, location-based services are provided to the MS as sales information, schedules, prices, maps, and the like. In a typical implementation a plurality of computer network access points, or beacons, are distributed throughout a geographic region and used to determine the position of the MS with a reasonably high degree of accuracy. Based on the current position of the MS, the beacons can provide location-based services.

公开(公告)号：WO2003065610A3

公开(公告)日：2003-08-07

申请号：PCT/US2003/002912

申请日：2003-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： KANG, Inyup ,  PATRICK, Christopher ,  MEAGHER, Bruce, R. ,  PATEL, Shimman ,  LI, Tao ,  CHEUNG, Joseph ,  SRINAVAS, Pillappakkam ,  FOERSTER, Gregory, B. ,  VARADARAJAN, Srinivas ,  WEI, Jian

IPC: H04B1/707

Abstract: A pilot searcher for CDMA and GPS signals. In one aspect, the searcher is operated in conjunction with a sample buffer in a "real-time" or "off-line" mode. The writing/reading of samples to/from the buffer may be performed in a TDM manner via a common port, and samples may be decimated and packed prior to storing in the buffer. In another aspect, the overall search for pilots is partitioned into a number of tasks, with each task corresponding to a search over a given sample segment and based on a particular set of parameter values. The tasks may be stored in a queue and performed one at a time based on their order in the queue. Prior to performing a new task, the parameter values for that task is downloaded to a set of configuration registers. The parameters may be ordered and linked such that only new values are downloaded.

公开(公告)号：WO2002095963A1

公开(公告)日：2002-11-28

申请号：PCT/US2002/011597

申请日：2002-04-09

Applicant: QUALCOMM INCORPORATED

Inventor： CHALLA, Raghu ,  ABRISHAMKAR, Farrokh ,  FEVRIER, Ian ,  GLAZKO, Serguei ,  LEE, Way-Shing ,  PATRICK, Christopher ,  SIH, Gil

IPC: H04B1/00

CPC classification number: H04W56/0035 ,  H04B1/7075 ,  H04W56/001 ,  H04W92/10

Abstract: A spread spectrum wireless device (100) may include a receiver (110), a searcher (128), a search controller (130) and other features. The search controller (130) selectively generates control signals to control the searcher (128), which searches for a spread-spectrum signal. In one embodiment, the architecture of the searcher (128) is dynamically configurable by the search controller (130) to selectively search multiple channels using multiple frequency bins for the signal.

Abstract translation: 扩频无线设备（100）可以包括接收机（110），搜索器（128），搜索控制器（130）和其他特征。 搜索控制器（130）选择性地产生控制信号以控制寻找扩频信号的搜索器（128）。 在一个实施例中，搜索器（128）的架构由搜索控制器（130）动态地配置，以选择性地使用针对该信号的多个频率仓搜索多个信道。

公开(公告)号：WO2004077699A1

公开(公告)日：2004-09-10

申请号：PCT/US2004/005557

申请日：2004-02-24

Applicant: QUALCOMM INCORPORATED ,  SIMIC, Emilija ,  PATRICK, Christopher

Inventor： SIMIC, Emilija ,  PATRICK, Christopher

IPC: H04B7/26

CPC classification number: H04B7/2606 ,  G01S5/0226 ,  G01S5/0273 ,  G01S19/256 ,  G01S19/258 ,  G01S19/46 ,  H04B7/155

Abstract: A forward link repeater frequency watermarking (FLRFWM) system and method that enable accurate position location of mobile stations in areas where repeaters are present by watermarking repeated signals with repeater information. A repeater watermarks a forward link signal with a (unique or non-unique) fast frequency modulation waveform watermark every time a signal passes through the repeater. A mobile station detects and/or identifies the fast frequency watermark on the forward link signal to determine repeater information that aids the network position determination entity or mobile station position location system in determining position location using AFLT and/or A?GPS systems. A forward link fast frequency watermarking system described herein achieves minimal impact on FL, AFLT, and GPS performance, good detection, identification and false alarm probabilities, short time-to-detect/identify, and good detection/identification sensitivity.

Abstract translation: 一种前向链路中继器频率水印（FLRFWM）系统和方法，其通过对具有中继器信息的重复信号进行水印来实现移动站在存在中继器的区域中的准确位置定位。 中继器每当信号通过中继器时，对具有（唯一或非唯一）快速频率调制波形水印的前向链路信号进行水印。 移动台在前向链路信号上检测和/或识别快速频率水印，以确定使用AFLT和/或A

公开(公告)号：WO2004038451A1

公开(公告)日：2004-05-06

申请号：PCT/US2003/033660

申请日：2003-10-22

Applicant: QUALCOMM, INCORPORATED

Inventor： ROWITCH, Douglas Neal ,  PATRICK, Christopher

IPC: G01S5/14

CPC classification number: H04B1/7077 ,  G01S5/0268 ,  G01S19/24 ,  G01S19/25 ,  G01S19/28 ,  G01S19/29 ,  H04B1/70754

Abstract: 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.

Abstract translation: 一种用于使用包括第一电平模式，第二模式和至少一个较高电平模式的多个逐渐更敏感的搜索模式来搜索位置确定信号的方法和系统。 如果任何搜索窗口参数超过规定的限制，则执行第一级搜索，并且响应于随后的搜索结果来改进搜索窗口参数，使得它们在规定的限制内。 然后，执行第二级搜索，并从随后的搜索结果导出测量值。 如果测量满足选定的测量足够标准，则可以避免在定位尝试之内进行额外的搜索。 如果测量不满足所选择的测量足够标准，则执行更高级别，更灵敏的搜索。

公开(公告)号：WO2003081930A1

公开(公告)日：2003-10-02

申请号：PCT/US2003/008804

申请日：2003-03-19

Applicant: QUALCOMM INCORPORATED

Inventor： KHUSHU, Sanjeev ,  ACHOUR, Baaziz ,  PATRICK, Christopher ,  YETTER, Carol

IPC: H04Q7/32

CPC classification number: H04W4/02 ,  H04W64/00 ,  H04W76/10

Abstract: A visit to an overhead channel to obtain base station identifiers is made if it is necessary to do so. Base station identifiers are indicative of an approximate location of a terminal. The determination to update the base station identifiers may be made by monitoring one or more base stations in the terminal's active set. In another aspect, the terminal can originate a new data call immediately after the necessary base station identifiers have been obtained from the overhead channel, without having to wait for the expiration of a timer (e.g., the dormant timer). Moreover, by maintaining the data session when terminating the data call for the overhead visit, data communication may be more quickly resumed, for a new data call originated after the overhead visit, using the same configured protocols.

Abstract translation: 如果有必要，则访问开销信道以获得基站标识符。 基站标识符表示终端的大致位置。 可以通过监视终端的活动集中的一个或多个基站来进行更新基站标识符的确定。 在另一方面，终端可以在已经从开销信道获得必要的基站标识符之后立即产生新的数据呼叫，而不必等待定时器（例如，休眠定时器）的到期。 此外，通过在终止对开销访问的数据呼叫时维护数据会话，可以使用相同的配置协议，对于在开销访问之后发起的新数据呼叫，可以更快地恢复数据通信。