Method and apparatus for deactivating secondary carriers in mobile communication system using carrier aggregation
AssigneeSamsung Electronics Co., Ltd.
InventorsJaehyuk Jang, Soenghun Kim
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Abstract
A method and an apparatus for deactivating secondary carriers in a mobile communication system using carrier aggregation are provided. A communication method, for a User Equipment (UE), includes activating a secondary carrier, starting a first timer upon activation of the secondary carrier, starting a second timer when the first timer expires, and deactivating the activated secondary carrier when the second timer expires.
Claims36
A method for controlling a secondary cell (SCell) by a terminal in a mobile communication system, the method comprising:
- receiving, by the terminal, first information for activating an SCell from a base station;
- activating, by the terminal, the SCell;
- starting, by the terminal, a timer associated with the SCell;
- restarting, by the terminal, if second information for the activated SCell is received from the base station, the timer associated with the SCell;
- and
- if the timer expires, deactivating, by the terminal, the SCell and applying one or more corresponding actions no later than in a predefined subframe.
A terminal for controlling a secondary cell (SCell), the terminal comprising:
- a transceiver unit for sending and for receiving a signal;
- a control unit configured to receive first information for activating an SCell from a base station, to activate the SCell, to start a timer associated with the SCell, to restart the timer associated with the SCell if second information for the activated SCell is received from the base station, and, if the timer expires, to deactivate the SCell and to apply one or more corresponding actions no later than in a predefined subframe.
A method for controlling a secondary cell (SCell) of a base station in a mobile communication system, the method comprising:
- transmitting, by the base station, first information for activating an SCell to a terminal;
- and
- transmitting, by the base station, second information for the activated SCell to the terminal,
- wherein a timer associated with the SCell is started by the terminal in response to the first information,
- wherein the timer associated with the SCell is restarted by the terminal if the second information for the activated SCell is received from the base station, and
- wherein, if the timer expires, the SCell is deactivated and one or more corresponding actions are applied no later than in a predefined subframe by the terminal.
A base station for controlling a secondary cell (SCell), the base station comprising:
- a transceiver unit for sending and for receiving a signal;
- a control unit configured to transmit first information for activating an SCell to a terminal and to transmit secondary information for the activated SCell to the terminal,
- wherein a timer associated with the SCell is started by the terminal, in response to the first information,
- wherein the timer associated with the SCell is restarted by the terminal if the second information for the activated SCell is received from the base station, and
- wherein, if the timer expires, the SCell is deactivated and one or more corresponding actions are applied no later than in a predefined subframe by the terminal.
Dependencies are inferred from the claim text.