Abstract:
PROBLEM TO BE SOLVED: To obtain data to be used for network planning, optimization, validation or operations applications. SOLUTION: A method of obtaining data 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 the 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 data base holding like records relating to other subscriber stations. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for determining geographical position of a remote unit in a wireless communication system. SOLUTION: Different types of position solutions may be used to determine the position of a mobile station in a wireless communication system. The position solutions include terrestrial or network based techniques and non-network based, such as satellite techniques. An apparatus and method whereby different position solutions are selected based on a figure of merit of the different solutions in determining a position of a mobile remote unit. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve an accuracy in positioning a mobile station unit.SOLUTION: Different types of position fixes may be used to determine the location of a mobile station unit in a wireless communication system. The position fixes include terrestrial-based, namely, network-based techniques, and non-network-based techniques, such as satellite-based techniques. When positioning the mobile station unit, an apparatus and method according to different position fixes may be selected based on the performance of any different fix.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and apparatuses for position determination and other operations.SOLUTION: A mobile station 407 uses radio signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination. Mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., positions and coverage areas of the wireless access points) for the wireless networks from the collected statistical data.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and apparatuses for position determination and other operations in a combination of a cellular phone network and a satellite positioning system (SPS) in a mobile station.SOLUTION: A mobile station uses wireless signals from a plurality of wireless networks, for position determination, and obtains time and/or frequency information. Further, mobile stations are used to harvest statistical data about wireless access points, namely, the locations of mobile stations that have received signals from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters, and to derive location information, namely, position and service area of the wireless access points, for the wireless networks from the collected statistical data.
Abstract:
Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data.
Abstract:
Un procedimiento para determinar una posición de una estación móvil, comprendiendo el procedimiento: recibir (901), en la estación móvil, las primeras señales transmitidas desde un primer punto de acceso inalámbrico de una primera red inalámbrica de un primer tipo de red, prestando soporte, el primer punto de acceso inalámbrico, a la comunicación bidireccional, en el que: la primera red inalámbrica es una red de área local inalámbrica; y las primeras señales comprenden información de identificación para el primer punto de acceso inalámbrico; determinar (903), por parte del dispositivo móvil, una medición de distancia para la estación móvil, usando las primeras señales; y comunicar (905) segundas señales entre la estación móvil y un segundo punto de acceso inalámbrico de una segunda red inalámbrica de un segundo tipo de red, en el que el segundo tipo de red es diferente al primer tipo de red; y comunicar (907) entre la estación móvil y un servidor, para determinar la posición de la estación móvil, a través del segundo punto de acceso inalámbrico de la segunda red inalámbrica, en el que: la comunicación entre la estación móvil y el servidor comprende transmitir la información de identificación para el primer punto de acceso inalámbrico desde la estación móvil al servidor, y la recepción por la estación móvil de una ubicación del primer punto de acceso inalámbrico desde el servidor, en base a la información de identificación; y la posición de la estación móvil es determinada por la estación móvil en base, al menos en parte, a la medición de distancia y a la ubicación del primer punto de acceso inalámbrico.
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.