Patent ID: 7155244
Filing Date: 2006-12-26
Classification: H04W

Abstract:
1. A method of providing precise common timing to wireless entities including mobile stations and base stations in a wireless network, said method comprising the steps of: a) measuring timing differences between pairs of a plurality of base stations including at least one reference base station and timing associations for said at least one reference base station; b) obtaining absolute timing differences (ATDs) from said measured timing differences (MTDs); c) aggregating said ATDs for each of said pairs of said plurality of base stations, wherein said aggregating includes averaging said ATDs for each base station pair using a moving weighted average, wherein each value for said moving weighted average is determined according to  where, d) adjusting said measured timing associations to current time; e) reducing errors in said aggregated ATDs; f) obtaining timing associations for non-reference base stations from said timing associations and said aggregated ATDs; and g) providing said obtained timing associations to selected wireless network entities.