Method of performing wireless communication in multi-carrier system
A method of a User Equipment (UE) performing wireless communication using multiple carriers comprises accessing a first carrier used for first link transmission, configuring a second carrier used for second link transmission, and performing the wireless communication using the second carrier. The second carrier is determined based on the first carrier.
1. A method of performing wireless communication using multiple carriers between a User Equipment (UE) and a base station, the method performed by the UE and comprising:
receiving pairing information indicating a mapping relationship between a first carrier used for first link transmission and a second carrier used for second link transmission from the base station, the first carrier being one of an aggregation of first carriers, and the second carrier being one of an aggregation of second carriers;
receiving configuration information for the first carrier from the base station after receiving the pairing information, wherein the configuration information is used to configure radio access to the first carrier among the multiple carriers including the first carrier and the second carrier;
accessing the first carrier used for the first link transmission based on the configuration information;
configuring the second carrier for the second link transmission based on the first carrier according to the mapping relationship indicated by the pairing information;
performing the wireless communication using the configured second carrier; and
releasing the first carrier together with the configured second carrier through a carrier aggregation configuration message which indicates release of the first carrier,
wherein the first link transmission is one of an uplink transmission and a downlink transmission and the second link transmission is the other one of the uplink transmission and the downlink transmission.
2. The method of claim 1 , wherein the second carrier is paired with a respective first carrier according to a one-to-one mapping relationship.
3. The method of claim 1 , wherein the second carrier is configured based on an index of the first carrier.
4. The method of claim 1 , further comprising:
receiving activation instruction information on a specific carrier from the base station.
5. The method of claim 1 , wherein the pairing information is received through a Broadcast Control Channel (BCCH) or a dedicated control channel (DCCH).
6. A user equipment (UE) for performing wireless communication with a base station, the UE comprising:
a transceiver configured for transmitting or receiving a radio signal; and
a processor coupled to the transceiver and configured for:
receiving pairing information indicating a mapping relationship between a first carrier used for first link transmission and a second carrier used for second link transmission from the base station, the first carrier being one of an aggregation of first carriers, and the second carrier being one of an aggregation of second carriers;
receiving configuration information for the first carrier from the base station after receiving the pairing information, wherein the configuration information is used to configure radio access to the first carrier among multiple carriers including the first carrier and the second carrier;
accessing the first carrier used for the first link transmission based on the configuration information;
configuring the second carrier for the second link transmission based on the first carrier according to the mapping relationship indicated by the pairing information;
performing the wireless communication using the configured second carrier; and
releasing the first carrier together with the configured second carrier through a carrier aggregation configuration message which indicates release of the first carrier,
wherein the first link transmission is one of an uplink transmission and a downlink transmission, and the second link transmission is the other one of the uplink transmission and the downlink transmission.
7. The user equipment of claim 6 , wherein the second link carrier is paired with a respective first link carrier according to a one-to-one relationship.
8. The user equipment of claim 6 , wherein the second link carrier is configured based on an index of the first link carrier.
9. The user equipment of claim 6 , wherein the transceiver is configured to receive activation instruction information on a specific carrier from the base station.
10. The user equipment of claim 6 , wherein the transceiver is further configured for receiving the pairing information through a Broadcast Control Channel (BCCH) or a dedicated control channel (DCCH).