Method and apparatus for deactivating secondary carriers in mobile communication system using carrier aggregation
First Claim
1. A method by a terminal in a mobile communication system, the method comprising:
- receiving, by the terminal, first information for activating a secondary Cell (SCell) from a base station;
activating, by the terminal, the SCell based on the first information;
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, applying by the terminal, one or more corresponding actions for deactivating the SCell no later than in a predefined subframe,wherein the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell.
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Abstract
A method and an apparatus in a mobile communication system are provided. The method includes receiving, by the terminal, first information for activating a secondary Cell (SCell) from a base station, activating, by the terminal, the SCell based on the first information, 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, applying by the terminal, one or more corresponding actions for deactivating the SCell no later than in a predefined subframe, wherein the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell.
13 Citations
20 Claims
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1. A method by a terminal in a mobile communication system, the method comprising:
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receiving, by the terminal, first information for activating a secondary Cell (SCell) from a base station; activating, by the terminal, the SCell based on the first information; 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, applying by the terminal, one or more corresponding actions for deactivating the SCell no later than in a predefined subframe, wherein the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell. - View Dependent Claims (2, 3, 4, 5)
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6. A method by a base station in a mobile communication system, the method comprising:
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generating, by the base station, first information for activating a secondary cell (SCell); and transmitting, by the base station, the first information to a terminal, wherein the SCell is activated based on the first information, a timer associated with the SCell is started, if second information for the SCell is generated, the timer is restarted, if the timer expires in subframe n, one or more corresponding actions for deactivating the SCell are applied no later than in a predefined subframe by the terminal, and the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell. - View Dependent Claims (7, 8, 9, 10)
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11. A terminal in a mobile communication system, the terminal comprising:
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a transceiver for transmitting and receiving a signal; and a controller configured; to receive first information for activating an secondary cell (SCell) from a base station, to activate the SCell based on the first information, to start a timer associated with the SCell, to restart, if second information for the activated SCell is received from the base station, the timer associated with the SCell, and if the timer expires, to apply one or more corresponding actions for deactivating the SCell no later than in a predefined subframe, wherein the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell. - View Dependent Claims (12, 13, 14, 15)
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16. A base station in a mobile communication system, the base station including:
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a transceiver for transmitting and receiving a signal; and a controller configured to generate first information for activating a secondary cell(SCell), and to transmit the first information to a terminal, wherein the SCell is activated based on the first information, a timer associated with the SCell is started, if second information for the SCell is generated, the timer is restarted, if the timer expires in subframe n, one or more corresponding actions for deactivating the SCell are applied no later than in a predefined subframe by the terminal, and the second information includes at least one of an uplink grant on the activated SCell, a downlink assignment on the activated SCell, and a control message for activating the SCell. - View Dependent Claims (17, 18, 19, 20)
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Specification