Apparatus and method in a communication network

Details Apparatus and method in a communication network Apparatus and method in a communication network

1997-12-18

2000-08-08

Tsang, Fan

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455434, 455515, 455432, 455509, 455513, 455450, 455445, H04Q 720, H04Q 738

Patent

active

061013838

ABSTRACT:
The present invention relates to a method and a mobile station for use in a communications network of GSM type, or a type derived from GSM. According to the invention the identification (307) of an unidentified BCCH carrier is initiated in the mobile station when said BCCH carrier on the basis of measured signal strengths is foreseen (321) soon to be one of the strongest BCCH carriers with regard to the signal strength average value over a measuring period. The delay from the point in time when the BCCH carriers becomes one of the strongest BCCH carriers, taking into account the signal strength average values over a measuring period, to the point when the BCCH carrier has been identified can in many cases be reduced or in some cases eliminated. Thus the mobile station can report measurement data for the BCCH carrier to the network at an earlier stage so that handover to the corresponding cell may be made faster.

REFERENCES:
patent: 5305468 (1994-04-01), Bruckert et al.
patent: 5379446 (1995-01-01), Murase
patent: 5491834 (1996-02-01), Chia
patent: 5608780 (1997-03-01), Gerszberg et al.
patent: 5655002 (1997-08-01), Proctor et al.
patent: 5768267 (1998-06-01), Raith et al.
GSM Recommendation 05.01, "Physical Layer on the Radio Path: General Description"; ETSI/GSM, Version 3.3.1, Jan. 1990, 11 pages.
GSM Recommendation 05.02, "Multiplexing and Multiple Access on the Radio Path", ETSI/TC GSM, Previous Released Version 3.4.1, New Released Version 3.5.0, Jan. 1991, 36 pages.

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