UMTS-GSM dual mode timing device
AssigneeNEC Corporation
InventorsRichard Ormson, Nik Bowdler, Tony Banks, Martin Hennelly
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Abstract
The present invention provides for a cellular radio communications device arranged for use with first and second communication systems having different timebases, and including means for determining the offset between the timebase at a serving cell of the first system and the timebase of a neighbouring cell of the second system, the said means for determining including timing means being arranged to be controlled by frame-boundary signals of the first and second communication systems.
Claims11
A cellular radio communications device arranged for use with first and second communication systems having different timebases, and including means for determining the offset between the timebase at a serving cell of the first system and the timebase of a neighbouring cell of the second system, the said means for determining including timing means being arranged to be controlled by frame-boundary signals of the first and second communication systems.
A method of operating a cellular radio communication device arranged for use with a first and second communication system having different timebases, and including the steps of determining the offset between the timebase of a serving cell for the first system and the timebase of a neighbouring cell of the second system, and controlling a timing means for determining the offset by way of frame boundary signals of the first and second communication systems.
Dependencies are inferred from the claim text.