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 uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD (time division duplex), the method comprising:
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,
wherein M=max(M1, M2), max(M1, M2) representing a value not smaller between M1 and M2,
wherein M1 corresponds to the number of downlink subframes corresponding to the uplink subframe in the first cell, and M2 corresponds to the number of downlink subframes corresponding to the uplink subframe in the second cell, and
wherein the first cell and the second cell have different uplink-downlink configurations.
2. The method according to claim 1 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).
3. The method according to claim 2 , wherein, when M≠1 and M2≠0, the first HARQ-ACK set is followed by the second HARQ-ACK set in the third HARQ-ACK set.
4. The method according to claim 1 , 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.
5. The method according to claim 1 , wherein, when M1<M2, the first HARQ-ACK set includes M2 HARQ-ACK responses, and M2-M1 HARQ-ACK responses at the back of the first HARQ-ACK set are set as DTX (discontinuous transmission).
6. The method according to claim 1 , wherein the bit value corresponding to the third HARQ-ACK set is transmitted using a specific PUCCH (physical uplink control channel) resource corresponding to the third HARQ-ACK set, from among a plurality of PUCCHs.
7. The method according to claim 1 , wherein the bit value corresponding to the third HARQ-ACK set is transmitted through a PUSCH (physical uplink shared channel).
8. A communication device configured to transmit uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD (time division duplex), the communication device comprising:
a radio frequency (RF) unit; and
a processor,
wherein the processor is configured to generate a first HARQ-ACK set for a first cell using a value M, to generate a second HARQ-ACK set for a second cell using the value M, and to transmit 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,
wherein M=max(M1, M2), max(M1, M2) representing a value not smaller between M1 and M2,
wherein M1 corresponds to the number of downlink subframes corresponding to the uplink subframe in the first cell, and M2 corresponds to the number of downlink subframes corresponding to the uplink subframe in the second cell, and
wherein the first cell and the second cell have different uplink-downlink configurations.
9. The communication device according to claim 8 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).
10. The communication device according to claim 9 , 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.
11. The communication device according to claim 8 , 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.
12. The communication device according to claim 8 , wherein, when M1<M2, the first HARQ-ACK set includes M2 HARQ-ACK responses, and M2-M1 HARQ-ACK responses at the back of the first HARQ-ACK set are set as DTX.
13. The communication device according to claim 8 , wherein the bit value corresponding to the third HARQ-ACK set is transmitted using a specific PUCCH (physical uplink control channel) resource corresponding to the third HARQ-ACK set, from among a plurality of PUCCHs.
14. The communication device according to claim 8 , wherein the bit value corresponding to the third HARQ-ACK set is transmitted through a PUSCH (physical uplink shared channel).