Method and apparatus for efficiently managing power-up timer for high-speed inter-radio access technology handover in mobile communication device
AssigneePantech Co., Ltd.
InventorSang Hun Lee
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Abstract
A method of an Inter-RAT handover between a WCDMA service and a CDMA service of a mobile communication device having a WCDMA modem and a CDMA modem, the method including: performing the WCDMA service in a WCDMA network; move from the WCDMA network to a CDMA network; determining an Inter-RAT idle roaming to the CDMA network; measuring, with a timer, a count period from a cut-off time of the WCDMA service according to the determination of the Inter-RAT idle roaming; and performing CDMA service registration according to the Inter-RAT idle roaming immediately after the cut-off time of the WCDMA service or after the count period set in the timer.
Claims23
A method of an Inter-RAT handover between a WCDMA service and a CDMA service in a mobile communication device having a WCDMA modem and a CDMA modem, the method comprising:
- performing the WCDMA service in a WCDMA network;
- move from the WCDMA network to a CDMA network;
- determining an Inter-RAT idle roaming to the CDMA network;
- measuring, with a timer, a count period from a cut-off time of the WCDMA service according to the determination of the Inter-RAT idle roaming;
- and
- performing CDMA service registration according to the Inter-RAT idle roaming immediately after the cut-off time of the WCDMA service or after the count period set in the timer.
A method of an Inter-RAT handover between multi-services of a mobile communication device, the method comprising:
- performing a first communication service in a first communication service network;
- moving from the first communication network to a second communication network;
- determining Inter-RAT idle roaming to the second communication network;
- measuring, with a timer, a count period from a cut-off time of the first communication service according to an idle roaming determination;
- and
- performing the second communication service registration according to the Inter-RAT idle roaming immediately after the cut-off time of the first communication service or after the count period set in the timer.
A mobile communication device comprising:
- a WCDMA modem;
- a CDMA modem;
- a timer measuring a count period from a certain point of time and generating a power-up registration signal and
- a controller controlling a handover between a WCDMA network and a CDMA network and controlling an operation of the WCDMA modem and the CDMA modem,
- wherein, when moving from the WCDMA network to the CDMA network, the controller controls a CDMA service registration according to an Inter-RAT idle roaming immediately after the cut-off time of the WCDMA service or after the count period, with reference to the power-up registration signal activated after the count period set in the timer.
A mobile communication device having modems supporting at least two communication services, the device comprising:
- a timer measuring a count period from a certain point of time and generating a power-up registration signal;
- and
- a controller controlling a handover between multi-service networks and controlling an operation of the relevant modem for communication in the relevant network,
- wherein, when moving from one network for a first communication service network to another network for a second communication service, the controller controlling a registration for the second communication service according to an Inter-RAT idle roaming immediately after a cut-off of the first communication service or after the count period, with reference to the power-up registration signal activated after the count period set in the timer.
Dependencies are inferred from the claim text.