Method for transmitting control information and device therefor
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information and a device therefor, and the method comprises the steps of: selecting, from a plurality of uplink control channel resources, one uplink control channel resource corresponding to a plurality of HARQ-ACKs; and transmitting bit values corresponding to said plurality of HARQ-ACKs by using the selected uplink control channel resource.
1. A method for transmitting uplink control information by a communication apparatus configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system, the method comprising:
selecting, via a processor, a PUCCH (Physical Uplink Control Channel) resource corresponding to a HARQ-ACK (Hybrid Automatic Repeat reQuest—Acknowledgement)(0) and a HARQ-ACK(1) from a plurality of PUCCH resources, according to a relation including Table 1; and
transmitting, via the processor, b( 0 )b( 1 ) corresponding to the HARQ-ACK(0) and the HARQ-ACK(1) using the selected PUCCH resource, wherein the b( 0 )b( 1 ) is given according to the relation including Table 1,
TABLE 1
HARQ-ACK(0)
HARQ-ACK(1)
n (1) PUCCH, i
b(0)b(1)
ACK
NACK/DTX
n (1) PUCCH, 0
11
NACK
NACK/DTX
n (1) PUCCH, 0
00
where the HARQ-ACK(0) indicates an ACK/NACK(Negative ACK)/DTX(Discontinuous Transmission) response to a data block related to the primary cell, the HARQ-ACK(1) indicates an ACK/NACK/DTX response to a data block related to the secondary cell, n (1) PUCCH, i (i=0, 1) indicates the plurality of PUCCH resources, and n (1) PUCCH, 0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.
2. The method according to claim 1 , wherein no transmission is performed if the HARQ-ACK(0) is DTX and the HARQ-ACK(1) is NACK.
3. The method according to claim 1 , wherein the primary cell includes a primary component carrier (PCC) and the secondary cell includes a secondary component carrier (SCC).
4. A communication apparatus configured with a plurality of cells including a primary cell and a secondary cell and configured to transmit uplink control information in a wireless communication system, the communication apparatus comprising:
a radio frequency (RF) unit; and
a processor,
wherein the processor is configured to select a PUCCH (Physical Uplink Control Channel) resource corresponding to a HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement)(0) and a HARQ-ACK(1) from a plurality of PUCCH resources, according to a relation including Table 1, and to transmit b( 0 )b( 1 ) corresponding to the HARQ-ACK(0) and the HARQ-ACK(1) using the selected PUCCH resource, wherein the b( 0 )b( 1 ) is given according to the relation including Table 1,
TABLE 1
HARQ-ACK(0)
HARQ-ACK(1)
n (1) PUCCH, i
b(0)b(1)
ACK
NACK/DTX
n (1) PUCCH, 0
11
NACK
NACK/DTX
n (1) PUCCH, 0
00
where the HARQ-ACK(0) indicates ACK/NACK(Negative ACK)/DTX(Discontinuous Transmission) response to a data block related to the primary cell, the HARQ-ACK(1) indicates ACK/NACK/DTX response to a data block related to the secondary cell, n (1) PUCCH, i (i=0, 1) indicates the plurality of PUCCH resources, and n (1) PUCCH, 0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.
5. The communication apparatus according to claim 4 , wherein no transmission is performed if the HARQ-ACK(0) is DTX and the HARQ-ACK(1) is NACK.
6. The communication apparatus according to claim 4 , wherein the primary cell includes a primary component carrier (PCC) and the secondary cell includes a secondary component carrier (SCC).
7. A method for transmitting uplink control information by a communication apparatus configured with a plurality of cells including a primary cell and a secondary cell in a wireless communication system, the method comprising:
selecting, via a processor, a PUCCH (Physical Uplink Control Channel) resource corresponding to a HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement)(0), a HARQ-ACK(1), a HARQ-ACK(2) and a HARQ-ACK(3) from a plurality of PUCCH resources, according to a relation including Table 2; and
transmitting, via the processor, b( 0 )b( 1 ) corresponding to the HARQ-ACK(0), the HARQ-ACK(1), the HARQ-ACK(2) and the HARQ-ACK(3) using the selected PUCCH resource, wherein the b( 0 )b( 1 ) is given according to the relation including Table 2,
TABLE 2
HARQ-
HARQ-
HARQ-
HARQ-
ACK(0)
ACK(1)
ACK(2)
ACK(3)
n (1) PUCCH, i
b(0)b(1)
ACK
ACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
11
ACK
NACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
10
NACK
ACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
01
NACK
NACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
00
where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK/DTX responses to data blocks related to the primary cell, the HARQ-ACK(2) and the HARQ-ACK(3) indicate ACK/NACK/DTX responses to data blocks related to the secondary cell, n (1) PUCCH, i (i=0, 1, 2, 3) indicates the plurality of PUCCH resources, and n (1) PUCCH, 0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.
8. The method according to claim 7 , wherein no transmission is performed if the HARQ-ACK(0) and the HARQ-ACK(1) are both DTXs and the HARQ-ACK(2) and the HARQ-ACK(3) are both NACKs.
9. The method according to claim 7 , wherein the primary cell includes a primary component carrier (PCC) and the secondary cell includes a secondary component carrier (SCC).
10. A communication apparatus configured with a plurality of cells including a primary cell and a secondary cell and configured to transmit uplink control information in a wireless communication system, the communication apparatus comprising:
a radio frequency (RF) unit; and
a processor,
wherein the processor is configured to select a PUCCH (Physical Uplink Control Channel) resource corresponding to a HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgement)(0), a HARQ-ACK(1), a HARQ-ACK(2) and a HARQ-ACK(3) from a plurality of PUCCH resources, according to a relation including Table 2, and to transmit b( 0 )b( 1 ) corresponding to the HARQ-ACK(0), the HARQ-ACK(1), the HARQ-ACK(2) and the HARQ-ACK(3) using the selected PUCCH resource, wherein the b( 0 )b( 1 ) is given according to the relation including Table 2,
TABLE 2
HARQ-
HARQ-
HARQ-
HARQ-
ACK(0)
ACK(1)
ACK(2)
ACK(3)
n (1) PUCCH, i
b(0)b(1)
ACK
ACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
11
ACK
NACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
10
NACK
ACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
01
NACK
NACK
NACK/DTX
NACK/DTX
n (1) PUCCH, 0
00
where the HARQ-ACK(0) and the HARQ-ACK(1) indicate ACK/NACK/DTX responses to data blocks related to the primary cell, the HARQ-ACK(2) and the HARQ-ACK(3) indicate ACK/NACK/DTX responses to data blocks related to the secondary cell, n (1) PUCCH,i (i=0, 1, 2, 3) indicates the plurality of PUCCH resources, and n (1) PUCCH, 0 indicates a PUCCH resource linked to a PDCCH (Physical Downlink Control Channel) on the primary cell.
11. The communication apparatus according to claim 10 , wherein no transmission is performed if the HARQ-ACK(0) and the HARQ-ACK(1) are both DTXs and the HARQ-ACK(2) and the HARQ-ACK(3) are both NACKs.
12. The communication apparatus according to claim 10 , wherein the primary cell includes a primary component carrier (PCC) and the secondary cell includes a secondary component carrier (SCC).