Abstract:
무선국의 3차원 위치의 산출을 돕기 위해 데이터베이스내의 지형 표고 맵들의 미리결정된 부분을 이용하는 방법 및 장치가 개시된다. 지구 또는 전체 국가의 전체 지형 모델을 이용하는 대신, 가장 많이 거주하는 지역 또는 특정 영역만을 포함하는 불완전 모델로 구성된 데이터베이스를 이용한다. 이것은 데이터베이스 정보의 크기를 감소키며, 차례로 무선 디바이스의 위치를 산출하는 시간의 양을 감소시킨다.
Abstract:
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 configures 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.
Abstract:
Un procedimiento para hacer funcionar una estación móvil (210), que comprende: obtener (110) información de determinación de posición a partir de una señal de un sistema de posicionamiento por satélite SPS (225); caracterizado por determinar (130) una incertidumbre de dicha información de determinación de posición usando una métrica de señal obtenida del entorno de RF, en el que la estación móvil (210) funciona asociada a una o más fuentes no-SPS (250, 260); comparar (140) dicha incertidumbre determinada con un valor de tolerancia a la incertidumbre; y obtener (150) una determinación de posición subsiguiente a partir de una señal SPS (225), si la incertidumbre determinada aumenta por encima de un nivel de umbral tolerable; si no, actualizar (120) la información de determinación de posición usando fuentes no-SPS (250, 260).
Abstract:
The subject matter disclosed herein relates to determining a location of a mobile device using more than one location-determining technology.
Abstract:
A method and apparatus for using a predetermined portion of terrain elevation maps in a database for aiding in computing a three-dimensional position of a wireless station. Instead of using the entire terrain model of the earth or an entire country, the database consists of an incomplete model, which includes only the most populous areas or specific regions. This reduces the size of the information in the database, which in turn reduces the amount of time to compute the positions of the wireless device.
Abstract:
The application relates to methods and systems where the position of a mobile station is determined in a network location server. Two methods, indicative of the teaching of the application, are listed below: Method 1 : (i) Obtain raw measurements (132) (ii) Update estimate based on combination of raw measurements with previous raw measurement and/or estimate (iii) trasmit updated estimates to location server Method 2 : (i) Obtain raw measurements from multiple signals at different time instances (ii) Update estimates based on raw measurements (iii) Extrapolate estimates to a common instance of time (iiii) Transmit extrapolated estimates to location server. These methods reduced the data link requirements.