Frequency hopping method for a mobile radio telephone system

Pulse or digital communications – Spread spectrum – Frequency hopping

Reexamination Certificate

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Reexamination Certificate

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07079568

ABSTRACT:
A frequency hopping method for a mobile radio system by which the carrier frequency of the base station (11) and of one or more mobile stations (12) of the mobile radio system is temporally changed in defined intervals according to a pre-determined frequency hopping scheme. Preferably, certain operational conditions of the mobile radio system are monitored and the frequency hopping scheme is adaptively adjusted according thereto. As a result, during operation, a frequency hopping sequence can be adjusted to the present operational conditions, especially to the influence of possible interfering signal.

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English Translation of PCT International Preliminary Examination Report, dated Oct. 30, 2001, 7 pgs.
Database WPI, Section Ch, Week 199508, Class A96/ AN 1995-057300, XP002153780 (1994).

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