Method and apparatus for location determination in a wireless assisted hybrid positioning system

    公开(公告)号:AU2003234234A8

    公开(公告)日:2003-11-10

    申请号:AU2003234234

    申请日:2003-04-25

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatuses for location determination in wireless assisted positioning systems. In one aspect of the disclosed method and apparatus, a method to determine a position of a mobile device in a positioning system includes: computing a second estimated position of a mobile device using a first assumed geometric relationship for a location of the mobile device in relation to a navigational transmitter (e.g., a basestation, a pseudolite, or a Satellite Positioning System (SPS) satellite). The first geometric relationship is linearly independent from the altitude of the mobile device (e.g., obtained from an altitude aiding) and a second geometric relationship based on range information (e.g., a range from the mobile device to the navigational transmitter, a pseudorange, an arrival time, or a round trip time) measured with respect to the navigational transmitter. In another embodiment of the disclosed method and apparatus, the method to determine a position of a mobile device in a positioning system includes: determining an estimated clock bias from a strength indicator of a signal transmitted from a navigational transmitter to the mobile device.

    USE OF MOBILE STATIONS FOR DETERMINATION OF BASE STATION LOCATION PARAMETERS IN A WIRELESS MOBILE COMMUNICATION SYSTEM

    公开(公告)号:AU2002357848A1

    公开(公告)日:2003-07-24

    申请号:AU2002357848

    申请日:2002-12-12

    Applicant: QUALCOMM INC

    Abstract: In a wireless communication network, base station antenna positions and time offsets are stored in a base station almanac data base along with other information used for obtaining the most reliable mobile station position fixes under a variety of conditions. The system uses the position fixes of mobile stations and terrestrial ranging information to determine base station antenna positions and base station timing offsets. The base station antenna positions are determined during normal mobile station position determinations, in order to maintain and improve the antenna location data, and to correct for change or relocation of the base station antennas. It is possible to recover quickly from a loss of cell sector identity during relocation of a base station antenna, and to ensure accuracy of mobile station position determination based on ranging from the base stations, and rapid acquisition of position data from mobile stations having global satellite receivers.

    MAINTENANCE OF A CALIBRATION DATA BASE FOR POSITION LOCATION DETERMINATION OF WIRELESS MOBILE STATIONS
    76.
    发明申请
    MAINTENANCE OF A CALIBRATION DATA BASE FOR POSITION LOCATION DETERMINATION OF WIRELESS MOBILE STATIONS 审中-公开
    校准数据库的维护位置无线移动站的位置确定

    公开(公告)号:WO03065740A3

    公开(公告)日:2003-10-16

    申请号:PCT/US0241255

    申请日:2002-12-26

    Applicant: QUALCOMM INC

    Abstract: In a wireless telecommunications network, hybrid (GPS and AFLT) mobile stations provide redundant position information, which is used for time base calibration and/or correction of position measurements. Every mobile station (i.e., handset or cellular phone) can be used as a test instrument, and data from regular wireless phone calls can be supplemented by data from drive-around field test units. The time base and/or position offsets are stored in a calibration data base along with other information used for obtaining the most reliable position fixes under a variety of conditions. An automatic system is provided for creating, updating, and maintaining the calibration data base. The automatic system not only characterizes the performance of the wireless network but also characterizes the performance of the position determination system. The automatic system provides performance feedback to system operators and customers.

    Abstract translation: 在无线电信网络中,混合(GPS和AFLT)移动站提供用于时基校准和/或位置测量校正的冗余位置信息。 每个移动站(即,手机或蜂窝电话)可以用作测试仪器,并且来自常规无线电话呼叫的数据可以由来自驱动环境现场测试单元的数据补充。 将时基和/或位置偏移与用于在各种条件下获得最可靠的位置定位的其他信息一起存储在校准数据库中。 提供了一种用于创建,更新和维护校准数据库的自动系统。 自动系统不仅表征无线网络的性能,而且还表征了位置确定系统的性能。 自动系统为系统运营商和客户提供性能反馈。

    METHOD AND APPARATUS FOR CREATING AND USING A BASE STATION ALMANAC FOR POSITION DETERMINATION
    77.
    发明申请
    METHOD AND APPARATUS FOR CREATING AND USING A BASE STATION ALMANAC FOR POSITION DETERMINATION 审中-公开
    用于创建和使用基站ALMANAC进行位置确定的方法和装置

    公开(公告)号:WO2005050245A3

    公开(公告)日:2005-11-10

    申请号:PCT/US2004023577

    申请日:2004-07-21

    CPC classification number: G01S19/46 G01S5/0236 G01S5/0268 G01S5/0273 H04W64/00

    Abstract: A method and apparatus for creating and using a base station almanac for position determination is described. The base station almanac includes a number of records, where each record can describe a sector or a transmitter (e.g., a base station or a repeater) in a wireless communication network. Each record includes a protocol type field that indicates the one or more protocols supported by the record (e.g., IS-801, J-STD-36, GSM, W-CDMA, and so on). Each record also includes a unique sector identifier for the sector/transmitter for each supported protocol, where each identifier is defined based on the associated protocol. A record may also include multiple maximum antenna ranges (MARs), where each MAR is associated with a respective reference power level. One of the multiple MARs can be selected for use for position determination depending on received signal strength. The base station almanac further includes other features.

    Abstract translation: 描述了一种用于创建和使用基站历书进行位置确定的方法和装置。 基站历书包括多个记录,其中每个记录可以描述无线通信网络中的扇区或发射机(例如,基站或中继器)。 每个记录包括指示由记录支持的一个或多个协议(例如,IS-801,J-STD-36,GSM,W-CDMA等)的协议类型字段。 每个记录还包括用于每个支持的协议的扇区/发射机的唯一扇区标识符,其中每个标识符基于相关联的协议来定义。 记录还可以包括多个最大天线范围(MAR),其中每个MAR与相应的参考功率电平相关联。 可以选择多个MAR中的一个用于根据接收的信号强度进行位置确定。 基站历书还包括其他功能。

    EVENT-TRIGGERED DATA COLLECTION
    78.
    发明申请
    EVENT-TRIGGERED DATA COLLECTION 审中-公开
    事件触发的数据收集

    公开(公告)号:WO2004068776A3

    公开(公告)日:2005-04-28

    申请号:PCT/US2004002714

    申请日:2004-01-30

    CPC classification number: H04W24/00 H04W4/02 H04W16/18

    Abstract: A method of obtaining data useful for one or more network applications is described. The method is performed responsive to a triggering event, such as a dropped call, a position fix, or even expiration of a timer. A position estimate for a subscriber station is obtained responsive to the event. A record is then formed associating the position estimate for the subscriber station with an identifier of the triggering event and/or data measured or obtained responsive to the event, such as the strength of one or more pilots visible to the subscriber station. The record is either stored locally or transmitted to a remote location. In one implementation, the record is transmitted to a remote location, and stored in a database holding like records relating to other subscriber stations.

    Abstract translation: 描述了获得对一个或多个网络应用有用的数据的方法。 响应于触发事件(例如掉话,定位或甚至定时器的到期)执行该方法。 响应于事件获得订户站的位置估计。 然后,形成将用户站的位置估计与响应于事件测量或获得的触发事件和/或数据的标识符相关联的记录,诸如用户站可见的一个或多个导频的强度。 记录本地存储或传输到远程位置。 在一个实现中,记录被发送到远程位置,并且存储在数据库中,保存与其他订户站相关的记录。

Patent Agency Ranking