Data reception and transmission method and apparatus for power saving in communication system using multiple carriers
The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.
1. A method for transceiving signals using at least one or more carriers in a multi-carrier system, the method performed by a mobile terminal and comprising:
configuring a primary carrier and a plurality of secondary carriers, wherein the primary carrier is configured as a carrier for performing a network entry procedure;
receiving a MAC (medium access control) message through the primary carrier, the MAC message including:
an indicator indicating activation of a secondary carrier of the plurality of
secondary carriers; and
an index of the secondary carrier to be activated;
receiving a secondary carrier deactivation time offset;
activating the secondary carrier no earlier than a specific subframe offset, the specific subframe offset being a number of subframes after receiving the indicator;
receiving the signals through the activated secondary carrier and the primary carrier;
transmitting uplink control information associated with the activated secondary carrier through the primary carrier; and
deactivating the activated secondary carrier based on the secondary carrier deactivation time offset.
2. The method of claim 1 , wherein the secondary carrier is configured as a primary carrier for another mobile terminal.
3. The method of claim 1 , wherein the primary carrier is always activated.
4. The method of claim 1 , further comprising:
receiving a message indicating a primary carrier change; and
changing the primary carrier configured for the mobile terminal according to the message.
5. A mobile terminal for transceiving signals using at least one or more carriers in a multi-carrier system, the mobile terminal comprising:
a wireless communication unit; and
a controller operatively connected to the wireless communication unit and configured to:
configure a primary carrier and a plurality of secondary carriers, wherein the primary carrier is configured as a carrier for performing a network entry procedure;
receive a MAC (medium access control) message through the primary carrier, the MAC message including:
an indicator indicating activation of a secondary carrier of the plurality of secondary carriers; and
an index of the secondary carrier to be activated;
receive a secondary carrier deactivation time offset;
activate the secondary carrier no earlier than a specific subframe offset, the specific subframe offset being a number of subframes after receiving the indicator;
receive the signals through the activated secondary carrier and the primary carrier;
transmit uplink control information associated with the activated secondary carrier through the primary carrier; and
deactivate the activated secondary carrier based on the secondary carrier deactivation time offset.
6. The mobile terminal of claim 5 , wherein the secondary carrier is configured as a primary carrier for another mobile terminal.
7. The mobile terminal of claim 5 , wherein the controller is further configured to activate the primary carrier always.
8. The mobile terminal of claim 5 , wherein the controller is further configured to:
receive a message indicating a primary carrier change, and
change the primary carrier configured for the mobile terminal according to the message.