Invention Grant
US08380218B2 Transponder subsystem for supporting location awareness in wireless networks
有权
用于支持无线网络中的位置识别的应答器子系统
- Patent Title: Transponder subsystem for supporting location awareness in wireless networks
- Patent Title (中): 用于支持无线网络中的位置识别的应答器子系统
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Application No.: US11860451Application Date: 2007-09-24
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Publication No.: US08380218B2Publication Date: 2013-02-19
- Inventor: Fritz Gfeller , Walter Hirt
- Applicant: Fritz Gfeller , Walter Hirt
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Vazken Alexanian
- Main IPC: H04W24/00
- IPC: H04W24/00

Abstract:
The present invention is related to an apparatus and method for determining the location of a communication device within a wireless network in order to provide a geolocation functionality to the communication device participating under an access protocol of a wireless local-area network (WLAN) infrastructure such as IEEE 802.11 or Hiperlan. The apparatus comprises at least two transponder units for communicating with the communication device when the communication device is situated in a coverage area of the wireless network and a processing unit for deriving the location of the communication device within the coverage area in dependence on information received from the transponder units.
Public/Granted literature
- US20080233973A1 Transponder subsystem for supporting location awareness in wireless networks Public/Granted day:2008-09-25
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