Method for transmitting control information and apparatus for same
A wireless communication system is disclosed. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD includes: generating a first HARQ-ACK (hybrid automatic repeat request-acknowledgement) set for a first cell using a value M; generating a second HARQ-ACK set for a second cell using the value M; and transmitting a bit value corresponding to a third HARQ-ACK set including the first HARQ-ACK set and the second HARQ-ACK set in an uplink subframe n, wherein M=max(M1, M2), max(M1, M2) representing a value being equal to or larger than not smaller between M1 and M2, wherein M1 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the first cell, and M2 corresponds to the number of downlink subframes corresponding to the uplink subframe n in the second cell, wherein the first cell and the second cell have different UL-DL configurations.
1. A method for transmitting, via a user equipment (UE), uplink control information in a wireless communication system supporting carrier aggregation and operating in a different uplink-downlink (UL-DL) configuration in a time division duplex (TDD), the method comprising:
determining at least one bit value corresponding to a third hybrid automatic repeat request-acknowledgment (HARQ-ACK) set including a first HARQ-ACK set and a second HARQ-ACK set; and
transmitting the determined at least one bit value in an uplink subframe n,
wherein the first HARQ-ACK set is identified for a first cell using a value M,
wherein the second HARQ-ACK set is identified for a second cell using the value M.
2. The method according to claim 1 , wherein M=max(M1, M2), max(M1, M2) is the larger value of M1 or M2.
3. The method according to claim 2 , wherein:
M1 corresponds to a number of downlink subframes corresponding to the uplink subframe n in the first cell, and
M2 corresponds to a number of downlink subframes corresponding to the uplink subframe n in the second cell.
4. The method according to claim 1 , wherein the first cell and the second cell have different UL-DL configurations.
5. The method according to claim 1 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).
6. The method according to claim 2 , wherein, when M1≠1 and M2≠0, the first HARQ-ACK set is followed by the second HARQ-ACK set in the third HARQ-ACK set.
7. The method according to claim 2 , wherein, when M1=0 and M2≠0, the second HARQ-ACK set is followed by the first HARQ-ACK set in the third HARQ-ACK set.
8. The method according to claim 2 , wherein, when M1<M2, the first HARQ-ACK set includes M1 HARQ-ACK responses and also includes (M2−M1) discontinuous transmissions (DTX)/negative acknowledgments (NACK).
9. The method according to claim 1 , wherein the at least one bit value corresponding to the third HARQ-ACK set is transmitted using a specific physical uplink control channel (PUCCH) resource corresponding to the third HARQ-ACK set, from among a plurality of PUCCHs.
10. The method according to claim 1 , wherein the at least one bit value corresponding to the third HARQ-ACK set is transmitted via a physical uplink shared channel (PUSCH).
11. A communication device configured to transmit, via a user equipment (UE), uplink control information in a wireless communication system supporting carrier aggregation and operating in a different uplink-downlink (UL-DL) configuration in a time division duplex (TDD), the communication device comprising:
a radio frequency (RF) transceiver; and
a processor configured to determine at least one bit value corresponding to a third hybrid automatic repeat request-acknowledgment (HARQ-ACK) set including a first HARQ-ACK set and a second HARQ-ACK set, and control the RF transceiver to transmit the determined at least one bit value in an uplink subframe n,
wherein the first HARQ-ACK set is identified for a first cell using a value M,
wherein the second HARQ-ACK set is identified for a second cell using the value M.
12. The communication device according to claim 11 , wherein M=max(M1, M2), max(M1, M2) is the larger value of M1 or M2.
13. The communication device according to claim 12 , wherein:
M1 corresponds to a number of downlink subframes corresponding to the uplink subframe n in the first cell, and
M2 corresponds to a number of downlink subframes corresponding to the uplink subframe n in the second cell.
14. The communication device according to claim 11 , wherein the first cell and the second cell have different UL-DL configurations.
15. The communication device according to claim 11 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).
16. The communication device according to claim 12 , wherein, when M1≠1 and M2≠0, the first HARQ-ACK set is followed by the second HARQ-ACK set in the third HARQ-ACK set.
17. The communication device according to claim 12 , wherein, when M1=0 and M2≠0, the second HARQ-ACK set is followed by the first HARQ-ACK set in the third HARQ-ACK set.
18. The communication device according to claim 12 , wherein, when M1<M2, the first HARQ-ACK set includes M1 HARQ-ACK responses and also includes (M2−M1) discontinuous transmissions (DTX)/negative acknowledgments (NACK).
19. The communication device according to claim 11 , wherein the at least one bit value corresponding to the third HARQ-ACK set is transmitted using a specific physical uplink control channel (PUCCH) resource corresponding to the third HARQ-ACK set, from among a plurality of PUCCHs.
20. The communication device according to claim 11 , wherein the at least one bit value corresponding to the third HARQ-ACK set is transmitted via a physical uplink shared channel (PUSCH).