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Positioning for wlans and other wireless networks

A technology of wireless local area network and positioning platform, which is applied in the field of performing positioning, and can solve the problems of transmitter location uncertainty, unknown transmitter location, etc.

Inactive Publication Date: 2016-10-26
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some wireless networks, the location of the transmitter may not be known, or there may be uncertainty about the location of the transmitter

Method used

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  • Positioning for wlans and other wireless networks
  • Positioning for wlans and other wireless networks
  • Positioning for wlans and other wireless networks

Examples

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Embodiment Construction

[0027] This document describes techniques for supporting positioning in wireless networks. The techniques may be used in various wireless networks such as Wireless Local Area Networks (WLAN), Wireless Wide Area Networks (WWAN), Metropolitan Area Networks (WMAN), broadcast networks, and the like. The terms "network" and "system" are often used interchangeably. A WWAN is a wireless network that provides communication coverage for a large geographic area (eg, a city, state, or entire country). A WWAN may be a cellular network such as a CDMA network, a TDMA network, an FDMA network, an OFDMA network, and the like. A CDMA network may implement a radio technology such as Wideband-CDMA (W-CDMA), cdma2000, and so on. cdma2000 covers IS-2000, IS-95 and IS-856 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. D-AMPS covers IS-248 and IS-54. These various radio t...

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Abstract

Techniques for positioning access points and terminals in WLANs and other wireless networks are described. For access point positioning, measurements are obtained for at least one access point in a WLAN. The measurements may be based on transmission sequences (e.g., beacon frames) transmitted periodically by each access point. The measurements may be made by multiple terminals at different locations or a single mobile terminal at different locations. The location of each access point is determined based on the measurements and known locations of the terminal(s). For terminal positioning, measurements for at least one access point in a WLAN are obtained. The location of the terminal is determined based on the measurements and known location of each access point. The measurements may be round trip time (RTT) measurements, observed time difference (OTD) measurements, time of arrival (TOA) measurements, signal strength measurements, signal quality measurements, etc.

Description

[0001] Information about divisional applications [0002] This case is a divisional application. The parent case of this divisional case is an invention patent application with the filing date of November 7, 2006, the application number of 200680049307.4, and the invention title of "Positioning of WLAN and other wireless networks". [0003] This application claims Provisional U.S. Application No. 60 / 734,631, filed November 7, 2005, entitled "LOCATION SOLUTIONS APPLICABLE TO WIRELESS LOCAL AREA NETWORKS (WLANs)" , Provisional U.S. Application No. 60 / 748,225, filed December 6, 2005, entitled "LOCATION SOLUTION APPLICABLE TO A TERMINAL SERVED BY AWIRELESS LAN," and 2006 Priority to Provisional U.S. Application No. [Docket No. 060145P3], filed Nov. 4, entitled "Support for WLAN Positioning in SUPL," all of which are Assigned to the assignee of this application and incorporated herein by reference. technical field [0004] The present invention relates generally to communicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02H04W64/00H04W84/12H04W88/08H04W4/02
CPCG01S5/0236G01S5/0242G01S5/0257G01S5/0278H04W64/00H04W84/12H04W88/08G01S19/14G01S19/51H04W4/02
Inventor 斯蒂芬·W·埃奇
Owner QUALCOMM INC