Patent ID: 9408172
Filing Date: 2016-08-02
CPC Classification: H04B,H04W

Claim Text:
1. A method of synchronizing a position location network, comprising: broadcasting a first synchronization message from a master access point (AP), wherein the first synchronization message comprises an ultra-wideband signal, and wherein the master AP comprises a reference oscillator and a timer; receiving, at the master AP, a first acknowledgment message from each AP that synchronized to the master AP based on the first synchronization message; designating as acting master APs one or more APs from which an acknowledgment message is received, wherein the one or more designated acting master APs are configured to broadcast a second synchronization message; and receiving, at the master AP from the one or more designated acting master APs, one or more lists of neighboring APs synchronized to the one or more designated acting master APs.