Invention Grant
- Patent Title: High precision network synchronization in an indoor position location system
- Patent Title (中): 高精度网络同步在室内定位系统中
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Application No.: US14042449Application Date: 2013-09-30
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Publication No.: US09408172B2Publication Date: 2016-08-02
- Inventor: Alok Kumar Gupta
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Holland & Hart LLP
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04W4/04 ; H04B7/26

Abstract:
Methods, systems, and devices for synchronizing a position location network. The methods, systems, and/or devices may provide for designating as a master AP one AP from a network. The master AP may broadcast synchronization signals, which other APs in the network may use to synchronize their respective oscillators and/or clocks. In some cases, the master AP and/or a network server (e.g., a tracking management server) may designate acting master APs. The acting master APs may, for example, broadcast synchronization signals to neighboring APs. The acting master APs and/or the master AP may maintain lists of synchronized APs, which may be transmitted among APs and/or to a network server.
Public/Granted literature
- US20150092754A1 HIGH PRECISION NETWORK SYNCHRONIZATION IN AN INDOOR POSITION LOCATION SYSTEM Public/Granted day:2015-04-02
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