Invention Grant
- Patent Title: Timed fingerprint locating in wireless networks
- Patent Title (中): 无线网络中的定时指纹定位
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Application No.: US13523778Application Date: 2012-06-14
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Publication No.: US08494557B2Publication Date: 2013-07-23
- Inventor: Sheldon Meredith , Mark Austin , Jeremy Fix , Wenjie Zhao , Sarat Puthenpura
- Applicant: Sheldon Meredith , Mark Austin , Jeremy Fix , Wenjie Zhao , Sarat Puthenpura
- Applicant Address: US GA Atlanta
- Assignee: AT&T Mobility II LLC
- Current Assignee: AT&T Mobility II LLC
- Current Assignee Address: US GA Atlanta
- Agency: Turocy & Watson, LLP
- Main IPC: H04B7/00
- IPC: H04B7/00

Abstract:
Systems and techniques for determining the location of user equipment (UE) in a wireless network are disclosed. These techniques leverage geometric calculations for an overlaid bin grid framework mapping the wireless network area to store differential values for each frame of the bin grid framework for each pair of relevant NodeBs. A timing offset can be determined, such that when a time value from a target UE is accessed, the location can be quickly determined with minimal real time computation. In an aspect, the target UE time value can be search for in the pre-computed differential value data set indexed by a relevant NodeB site pair to return a set of frames (forming a hyperbola between the site pair) that can be intersected with a second set of frames for a second NodeB site pair for the same UE. The intersecting frames can represent the location of the UE in the wireless network. Further, the data can be leveraged to correct timing in the network.
Public/Granted literature
- US20120252489A1 TIMED FINGERPRINT LOCATING IN WIRELESS NETWORKS Public/Granted day:2012-10-04
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