Invention Grant
- Patent Title: Estimating the location of a wireless terminal in wireless telecommunications systems that comprise distributed and/or repeater antennas
- Patent Title (中): 估计无线终端在包括分布式和/或中继器天线的无线电信系统中的位置
-
Application No.: US13598668Application Date: 2012-08-30
-
Publication No.: US08838137B2Publication Date: 2014-09-16
- Inventor: Tarun Kumar Bhattacharya , David Stevenson Spain, Jr. , Hassan Mohamed El-Sallabi , Robert Lewis Martin
- Applicant: Tarun Kumar Bhattacharya , David Stevenson Spain, Jr. , Hassan Mohamed El-Sallabi , Robert Lewis Martin
- Applicant Address: US CA Mountain View
- Assignee: Polaris Wireless, Inc.
- Current Assignee: Polaris Wireless, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Kaplan Breyer Schwarz & Ottesen, LLP
- Main IPC: H04W24/00
- IPC: H04W24/00

Abstract:
A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are location-dependent traits of electromagnetic signals. In environments where multiple antennas are radiating the same signal, as in the case of distributed antennas or host-repeater configurations, one or more possible locations of the wireless terminal can be designated as improbable based on i) a measure of the propagation delay of a signal traveling between a) a base station and b) the wireless terminal or an infrastructure antenna, or ii) the maximum distance at which a signal is detectable by the wireless terminal. Additionally, the applicable set of values for the location-dependent traits is selected based on similar criteria.
Public/Granted literature
Information query