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Method and apparatus for supporting positioning of roaming mobile stations

A technology of mobile station, equipment, applied in the field of communication

Inactive Publication Date: 2012-09-19
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main challenge then is to provide location services to mobile stations in roaming scenarios

Method used

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  • Method and apparatus for supporting positioning of roaming mobile stations
  • Method and apparatus for supporting positioning of roaming mobile stations
  • Method and apparatus for supporting positioning of roaming mobile stations

Examples

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Embodiment Construction

[0020] The techniques described herein can be used for various wireless networks such as Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and so on. A CDMA network may implement a radio network such as cdma2000, Wideband-CDMA (W-CDMA), and so on. cdma2000 covers IS-2000, IS-856 and IS-95 standards. A TDMA network may implement a radio technology such as Global System for Mobile communications (GSM), Digital Advanced Mobile Phone System (D-AMPS), and so on. W-CDMA and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 is described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). 3GPP and 3GPP2 documents are publicly available. For clarity, the techniques are described below for 3GPP2 networks.

[0021] figure 1 A deployment with a visited network...

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Abstract

Techniques to support positioning of roaming mobile stations are described. A roaming mobile station communicates with a visited network and has a data connection to a home network. The mobile station sends a request for positioning assistance to a home position determining entity (H-PDE) in the home network. The H-PDE determines that base station almanac (BSA) data applicable for the mobile station is not locally available and sends a request for location information for the mobile station to a designated network entity. This entity may be a BSA server storing BSA data for different networksor a visited PDE (V-PDE) in the visited network. The H-PDE receives location information (e.g., BSA data, assistance data, and / or a position estimate for the mobile station) from the designated network entity and provides positioning assistance to the mobile station based on the received location information.

Description

[0001] Related Application Cross-References [0002] METHOD AND APPARATUS FOR SUPPORTING POSITIONING OF ROAMING MOBILE STATIONS This application petition filed on August 24, 2006 and is entitled "Method and Apparatus for Facilitating Roaming for Location-Based Services by Sharing Base Station Almanac Data" to Facilitate Location Based Services Roaming Through Sharing of Base Station Almanac Data), Provisional U.S. Application No. 60 / 840,274 (assigned to the assignee of the present invention and incorporated herein by reference) and published on November 2006 Provisional U.S. Application No. 60 / 866,410, filed March 17, and entitled "CDMA Use Plane Location Based Services (LBS) Roaming," assigned to the assignee of the present invention. and incorporated herein by reference). technical field [0003] This disclosure relates generally to communications, and more particularly to techniques for supporting positioning of mobile stations. Background technique [0004] It is ofte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W64/00G01S5/02H04W88/08
CPCG01S19/05H04W64/00H04W88/08G01S5/0236H04W64/003
Inventor 戈拉芙·兰巴博比·哈斯金斯吉姆·德洛克柯克·博洛斯佐尔坦·比奥奇
Owner QUALCOMM INC
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