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1. (WO2001039400) IMPROVEMENTS IN OR RELATING TO MOBILE TELECOMMUNICATIONS SYSTEMS

Pub. No.:    WO/2001/039400    International Application No.:    PCT/GB2000/004268
Publication Date: Fri Jun 01 01:59:59 CEST 2001 International Filing Date: Wed Nov 08 00:59:59 CET 2000
IPC: H04B 7/26
Applicants: ROKE MANOR RESEARCH LIMITED
HULBERT, Anthony, Peter
Inventors: HULBERT, Anthony, Peter
Title: IMPROVEMENTS IN OR RELATING TO MOBILE TELECOMMUNICATIONS SYSTEMS
Abstract:
Described herein is a method of determining when propagation delays measured in both directions between two base stations i and j relate to the earliest path and not to a later path. Once synchronisation has been achieved, the measurement of the propagation delay is compared with predetermined limits and if falling within those limits is stored. Subsequent measurements of propagation delay are also compared with the predetermined limits and are only stored if they fall within those limits and are better than the currently stored measurement.