Mobile radio communications device and method of transferring between networks therefor
First Claim
1. A method of transferring operation of a mobile radio communications device from a first network to a second network, while connected to the said first network, and including the steps of:
- identifying cells of the said second network;
comparing signal power level of the identified cells with a threshold level; and
connecting to a cell of the second network identified as having a signal power level above the said threshold level.
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Abstract
The present invention provides for a method of transferring operation of a mobile radio communication device from a first network to a second network, while connected to the said first network, and including the steps of identifying cells of the said second network, comparing signal power level of the identified cells with a threshold level and connecting to a cell of the second network identified as having a signal power level above the said threshold level such that that passage can be transferred from, for example, a 3G network to a 2G network can be achieved without requiring the 3G network to monitor the 2G network prior to such handover.
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Citations
30 Claims
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1. A method of transferring operation of a mobile radio communications device from a first network to a second network, while connected to the said first network, and including the steps of:
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identifying cells of the said second network;
comparing signal power level of the identified cells with a threshold level; and
connecting to a cell of the second network identified as having a signal power level above the said threshold level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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- 13. A mobile radio communications device arranged for operation with a first network and a second network and for transferring connectivity from the said first network to the said second network while connected to the said first network, the device including means arranged to identify cells of the said second network, means for comparing signal power levels of the identified cells with a threshold level, and means arranged to connect the device to a cell of the said second network and which is identified as having a signal power level above the said threshold level.
Specification