Method of switching from a first mobile radio mode to a...

Details Method of switching from a first mobile radio mode to a... Method of switching from a first mobile radio mode to a...

2005-10-25

2005-10-25

Corsaro, Nick (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S553100, C455S556100, C455S556200, C455S127400, C455S188100, C455S205000

Reexamination Certificate

active

06959201

ABSTRACT:
The present invention relates to a method of switching from a first mobile radio mode to a second mobile radio mode in a multimode mobile radio terminal having a first part and a second part respectively operating in compliance with first and second radio access technologies and respectively provided with first and second clocks, the method including the following steps:locking the first part of the mobile terminal to a first mobile radio mode associated with an first clock;the mobile terminal calculating the time shift between the clocks of the two mobile radio modes;correcting the time of a second part of the terminal using the calculated time shift; andswitching a second part of the mobile terminal to a second mobile radio mode associated with the second clock.

REFERENCES:
patent: 5422931 (1995-06-01), Austin-Lazarus et al.
patent: 5640679 (1997-06-01), Lundqvist et al.
patent: 6282431 (2001-08-01), Konno
patent: 6741836 (2004-05-01), Lee et al.
patent: 2002/0102987 (2002-08-01), Souisse et al.
patent: 2002/0155862 (2002-10-01), Ormson
patent: 0 966 116 (1999-12-01), None
patent: 1 073 303 (2001-01-01), None
patent: 1089578 (2001-04-01), None
patent: WO9638991 (1996-12-01), None

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