MX9701205A - Method and apparatus for determining the location of a mobile telephone. - Google Patents
Method and apparatus for determining the location of a mobile telephone.Info
- Publication number
- MX9701205A MX9701205A MX9701205A MX9701205A MX9701205A MX 9701205 A MX9701205 A MX 9701205A MX 9701205 A MX9701205 A MX 9701205A MX 9701205 A MX9701205 A MX 9701205A MX 9701205 A MX9701205 A MX 9701205A
- Authority
- MX
- Mexico
- Prior art keywords
- location
- mobile telephone
- mobile
- calculated
- area
- Prior art date
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
A method and apparatus for determining the location of a mobile telephone within the serving area of a mobile telephone system are disclosed. A mobile switching center analyzes the calling mobile telephone number and called telephone number to determine if a location function is required. Upon initiation of the location function by the mobile switching center, a mobile location module calculates a location estimate of the mobile telephone. The mobile location module receives a list of signal strengths received by the mobile telephone from cell site antennas within the serving are. The distance between the mobile telephone and a plurality of cell site antennas is calculated using a technique which reduces the error component of the calculated distances. These reduced error distances are used to geometrically determine an estimate of the location area. In addition, the mobile telephone comprises a GPS receiver processor for sending the most recent GPS coordinates of the mobile telephone which are within predetermined confidence level to the mobile location module. These GPS coordinates are compared with the calculated location area to increase the accuracy of the location determination.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08603793 | 1996-02-20 | ||
| US08/603,793 US5724660A (en) | 1995-06-07 | 1996-02-20 | Method and apparatus for locating a mobile station by comparing calculated location area with GPS coordinates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9701205A true MX9701205A (en) | 1998-05-31 |
| MXPA97001205A MXPA97001205A (en) | 1998-10-23 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7660588B2 (en) | 2002-10-17 | 2010-02-09 | Qualcomm Incorporated | Method and apparatus for improving radio location accuracy with measurements |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7660588B2 (en) | 2002-10-17 | 2010-02-09 | Qualcomm Incorporated | Method and apparatus for improving radio location accuracy with measurements |
| US8583140B2 (en) | 2002-10-17 | 2013-11-12 | Qualcomm Incorporated | Method and apparatus for improving radio location accuracy with measurements |
| US8588811B2 (en) | 2002-10-17 | 2013-11-19 | Qualcomm Incorporated | Method and apparatus for improving radio location accuracy with measurements |
| US9014719B2 (en) | 2002-10-17 | 2015-04-21 | Qualcomm Incorporated | Method and apparatus for improving radio location accuracy with measurements |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2195591C (en) | 2001-09-04 |
| BR9701024A (en) | 1998-11-03 |
| CA2195591A1 (en) | 1997-08-21 |
| BR9701024B1 (en) | 2009-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6658258B1 (en) | Method and apparatus for estimating the location of a mobile terminal | |
| KR100208647B1 (en) | Method and apparatus for location finding in CDMA system | |
| EP1206152B1 (en) | Positioning method using mobile terminal and mobile terminal having positioning function | |
| RU2197780C2 (en) | Global positioning system receiver with limited code-shift spatial search for cellular telephone system | |
| CA2388743C (en) | Method and apparatus for determining the position location using reduced number of gps satellites and synchronized and unsynchronized base stations | |
| US7089112B2 (en) | Method of determining the position of a mobile unit | |
| JP3323206B2 (en) | Position finding method and apparatus in communication system | |
| JP3491631B2 (en) | Wireless communication terminal | |
| US7345582B2 (en) | Methods for detecting, computing and disseminating location information of weapons of mass destruction | |
| US7602335B2 (en) | Geo-location using distributed composite GPS signals | |
| US20030190919A1 (en) | Method for positioning a mobile station | |
| AU745566B2 (en) | Method of locating terminal, and cellular radio system | |
| US6654362B1 (en) | Use of location in handoff in wireless communication systems | |
| CN1284798A (en) | Method for auxiliary cross-domain switching of intelligent mobile station | |
| GB9900340D0 (en) | A method of and system for estimating a time of arrival of a radio signal | |
| EP2020608A3 (en) | Method and apparatus for determining time for GPS receivers | |
| RU2004122913A (en) | USE OF MOBILE STATIONS FOR DETERMINING THE PARAMETERS OF LOCATION OF A BASIC STATION IN A WIRELESS MOBILE COMMUNICATION SYSTEM | |
| WO2003027703A3 (en) | An embedded chirp signal for position determination in cellular communication systems | |
| SE9603561L (en) | Device and method for locating a mobile station in a cellular mobile telephone system | |
| CN101682905A (en) | Facilitating mobile station location using ground-based cellular network | |
| KR100587442B1 (en) | Terminal device and reference terminal calibrating method | |
| KR20030077849A (en) | Location tracing apparatus and method for mobile terminal | |
| EP2092363B1 (en) | Geo-location using distributed composite gps signals | |
| WO1998056203A3 (en) | Directed retry for call setup | |
| WO2003015447A1 (en) | Methods for detecting, computing and disseminating location information associated with emergency 911 wireless transmissions |