Communication method supporting plurality of serving cells, and apparatus using same
A communication method supporting a plurality of serving cells in a wireless communication system is provided. A terminal receives a capability enquiry from a network, and accordingly transmits capability information to the network. The capability information comprises an upper band combination and a simultaneous indicator indicating whether the upper band combination supports simultaneous reception (RX)-transmission (TX).
1. A method for communication in a wireless communication system supporting a plurality of serving cells, the method comprising:
receiving a capability enquiry from a network; and
transmitting capability information to the network upon receiving the capability enquiry,
wherein the capability information comprises a primary band combination and a simultaneous indicator indicating whether a band combination including the primary band combination supports simultaneous reception (RX)-transmission (TX), and
wherein when the simultaneous indicator indicates that the band combination supports the simultaneous RX-TX and when the primary band combination does not support the simultaneous RX-TX, it is implicitly indicated that the simultaneous RX-TX is supported for a secondary band combination except for a band belonging to the primary band combination among the band combination.
2. The method of claim 1 , wherein the plurality of serving cells comprise a frequency division duplex (FDD) cell and a time division duplex (TDD) cell.
3. An apparatus on which a plurality of serving cells are configured in a wireless communication system, the apparatus comprising:
a radio frequency (RF) configured to transmit and receive a radio signal; and
a processor operatively coupled to the RF unit and configured to:
receive a capability enquiry from a network; and
transmit capability information to the network upon receiving the capability enquiry,
wherein the capability information comprises a primary band combination and a simultaneous indicator indicating whether a band combination including the primary band combination supports simultaneous reception (RX)-transmission (TX), and
wherein when the simultaneous indicator indicates that the band combination supports the simultaneous RX-TX and when the primary band combination does not support the simultaneous RX-TX, it is implicitly indicated that the simultaneous RX-TX is supported for a secondary band combination except for a band belonging to the primary band combination among the band combination.