Change of frequency range in a communications system

Details Change of frequency range in a communications system Change of frequency range in a communications system

2008-01-01

2008-01-01

Chan, Wing (Department: 2616)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S343000, C455S436000

Reexamination Certificate

active

07315525

ABSTRACT:
The object of the invention is a method for changing the frequency band used by a mobile station in a mobile station system. The invention is based on the idea that instead of using a fixed threshold value to change the frequency band, it is replaced with a variable threshold value in connection of a failed attempt to change the frequency band. The variable threshold value is based on the signal levels measured on both frequency bands and used to obtain the new threshold value. A fresh attempt to change the frequency band is made applying the new threshold value.

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