IP Library › Granted Patent US 9,614,649

Granted Patent B2

US 9,614,649 · App. 15/156,005 · Granted Apr 4, 2017

Method for transmitting control information and apparatus for same

Inventors: Suckchel Yang (Anyang-si, KR); Joonkui Ahn (Anyang-si, KR); Dongyoun Seo (Anyang-si, KR)

Assignee: LG ELECTRONICS INC.

H04L1/1887 H04B7/26 H04L1/1607 H04L1/18 H04L1/1861 H04L5/0055 H04L5/14 H04W72/042 H04W72/0413 H04W76/048 H04L1/0073 H04L1/1812 H04L5/001 H04W88/02

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Quick Facts

Patent No.: US 9,614,649
App. No.: 15/156,005
Granted: Apr 4, 2017
Kind: B2

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Abstract

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.

Claims (271)

1. A method for transmitting uplink control information by a user equipment (UE) in a wireless communication system supporting carrier aggregation, the UE being configured with a plurality of cells including a first cell and a second cell and configured to transmit a hybrid automatic repeat request-acknowledgment (HARQ-ACK) response based on channel selection, the first cell and the second cell having different uplink-downlink (UL-DL) configurations and operating in time division duplex (TDD), the method comprising:

determining a value M as a largest value of M1 or M2, M1 being a value according to an UL-DL configuration of the first cell and M2 being a value according to an UL-DL configuration of the second cell;

determining HARQ-ACK responses for the first cell and the second cell based on the value M;

determining bit values and a physical uplink control channel (PUCCH) resource corresponding to the determined HARQ-ACK responses; and

transmitting the bit values using the PUCCH resource in an uplink subframe.

2. The method according to claim 1 , wherein:

M1 corresponds to a number of downlink subframes associated with the uplink subframe in the first cell, and

M2 corresponds to a number of downlink subframes associated with the uplink subframe in the second cell.

3. The method according to claim 1 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0), HARQ-ACK(1)

n PUCCH (1)

b(0)b(1)

ACK, ACK

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK

n PUCCH,1 (1)

0, 1

NACK, NACK/DTX

n PUCCH,0 (1)

0, 0

where HARQ-ACK(0) and HARQ-ACK(1) represent the HARQ-ACK responses for the first cell and the second cell, n PUCCH (1) represents the PUCCH resource, and b(0)b(1) represents the bit values, and

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

4. The method according to claim 1 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0),

HARQ-ACK(1), HARQ-ACK(2)

n PUCCH (1)

b(0)b(1)

ACK, ACK, ACK

n PUCCH,2 (1)

1, 1

ACK, ACK, NACK/DTX

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX, ACK

n PUCCH,2 (1)

1, 0

ACK, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK, ACK

n PUCCH,2 (1)

0, 1

NACK/DTX, ACK, NACK/DTX

n PUCCH,1 (1)

0, 1

NACK/DTX, NACK/DTX, ACK

n PUCCH,2 (1)

0, 0

NACK, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

0, 0

where HARQ-ACK(0), HARQ-ACK(1), and HARQ-ACK(2) represent the HARQ-ACK responses for the first cell and the second cell, n PUCCH (1) represents the PUCCH resource, and b(0)b(1) represents the bit values, and

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

5. The method according to claim 1 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0), HARQ-ACK(1),

HARQ-ACK(2), HARQ-ACK(3)

n PUCCH (1)

b(0)b(1)

ACK, ACK, ACK, ACK

n PUCCH,1 (1)

1, 1

ACK, ACK, ACK, NACK/DTX

n PUCCH,2 (1)

1, 1

ACK, ACK, NACK/DTX, ACK

n PUCCH,0 (1)

1, 0

ACK, ACK, NACK/DTX, NACK/DTX

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX, ACK, ACK

n PUCCH,3 (1)

1, 1

ACK, NACK/DTX, ACK, NACK/DTX

n PUCCH,2 (1)

1, 0

ACK, NACK/DTX, NACK/DTX, ACK

n PUCCH,0 (1)

0, 1

ACK, NACK/DTX, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK, ACK, ACK

n PUCCH,1 (1)

0, 0

NACK/DTX, ACK, ACK, NACK/DTX

n PUCCH,2 (1)

0, 1

NACK/DTX, ACK, NACK/DTX, ACK

n PUCCH,3 (1)

1, 0

NACK/DTX, ACK, NACK/DTX, NACK/DTX

n PUCCH,1 (1)

0, 1

NACK/DTX, NACK/DTX, ACK, ACK

n PUCCH,3 (1)

0, 1

NACK/DTX, NACK/DTX, ACK, NACK/DTX

n PUCCH,2 (1)

0, 0

NACK/DTX, NACK/DTX, NACK/DTX, ACK

n PUCCH,3 (1)

0, 0

NACK, NACK/DTX, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

0, 0

where HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3) represent the HARQ-ACK responses for the first cell and the second cell, n PUCCH (1) represents the PUCCH resource, and b(0)b(1) represents the bit values, and

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

6. The method according to claim 1 , wherein, when M=1, the HARQ-ACK responses for the first cell and the second cell include at least two of HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3), and

wherein the at least two of HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3) are determined based on the following table:

HARQ-

ACK(0)

HARQ-ACK(1)

HARQ-ACK(2)

HARQ-ACK(3)

TB1 first cell

TB2 second cell

TB1 first cell

TB2 first cell

TB3 second cell

TB1 first cell

TB2 first cell

TB3 second cell

TB4 second cell

where TB1 represents a HARQ-ACK response to a first transport block, TB2 represents a HARQ-ACK response to a second transport block, TB3 represents a HARQ-ACK response to a third transport block, and TB4 represents a HARQ-ACK response to a fourth transport block.

7. The method according to claim 1 , wherein, when M=2, the HARQ-ACK responses for the first cell and the second cell include HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3), and

wherein HARQ-ACK(0) indicates a HARQ-ACK response to a downlink signal received in a first subframe of the first cell, HARQ-ACK(1) indicates a HARQ-ACK response to a downlink signal received in a second subframe of the first cell, HARQ-ACK(2) indicates a HARQ-ACK response to a downlink signal received in a first subframe of the second cell, and HARQ-ACK(3) indicates a HARQ-ACK response to a downlink signal received in a second subframe of the second cell.

8. The method according to claim 1 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).

9. The method according to claim 1 , wherein, based on M being greater than M1, (M-M1) HARQ-ACK responses for the first cell are set to discontinuous transmissions (DTX).

10. The method according to claim 1 , wherein, based on M being greater than M2, (M-M2) HARQ-ACK responses for the second cell are set to discontinuous transmissions (DTX).

11. A communication apparatus configured to transmit uplink control information in a wireless communication system supporting carrier aggregation, the communication apparatus being configured with a plurality of cells including a first cell and a second cell and configured to transmit a hybrid automatic repeat request-acknowledgment (HARQ-ACK) response based on channel selection, the first cell and the second cell having different uplink-downlink (UL-DL) configurations and operating in time division duplex (TDD), the communication apparatus comprising:

a radio frequency (RF) transceiver; and

a processor configured to:

determine a value M as a largest value of M1 or M2, M1 being a value according to an UL-DL configuration of the first cell and M2 being a value according to an UL-DL configuration of the second cell,

determine HARQ-ACK responses for the first cell and the second cell based on the value M,

determine bit values and a physical uplink control channel (PUCCH) resource corresponding to the determined HARQ-ACK responses, and

transmit the bit values using the PUCCH resource in an uplink subframe.

12. The communication apparatus according to claim 11 , wherein:

M1 corresponds to a number of downlink subframes associated with the uplink subframe in the first cell, and

M2 corresponds to a number of downlink subframes associated with the uplink subframe in the second cell.

13. The communication apparatus according to claim 11 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0),

HARQ-ACK(1)

n PUCCH (1)

b(0)b(1)

ACK, ACK

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK

n PUCCH,1 (1)

0, 1

NACK, NACK/DTX

n PUCCH,0 (1)

0, 0

where HARQ-ACK(0) and HARK-ACK(1) represent the HARQ-ACK responses for the first cell and the second cell, n PUCCH (1) represents the PUCCH resource, and b(0)b(1) represents the bit values, and

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

14. The communication apparatus according to claim 11 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0), HARQ-ACK(1),

HARQ-ACK(2)

n PUCCH (1)

b(0)b(1)

ACK, ACK, ACK

n PUCCH,2 (1)

1, 1

ACK, ACK, NACK/DTX

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX, ACK

n PUCCH,2 (1)

1, 0

ACK, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK, ACK

n PUCCH,2 (1)

0, 1

NACK/DTX, ACK, NACK/DTX

n PUCCH,1 (1)

0, 1

NACK/DTX, NACK/DTX, ACK

n PUCCH,2 (1)

0, 0

NACK, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

0, 0

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

15. The communication apparatus according to claim 11 , wherein the bit values and the PUCCH resource are determined based on the following table:

HARQ-ACK(0), HARQ-ACK(1),

HARQ-ACK(2), HARQ-ACK(3)

n PUCCH (1)

b(0)b(1)

ACK, ACK, ACK, ACK

n PUCCH,1 (1)

1, 1

ACK, ACK, ACK, NACK/DTX

n PUCCH,2 (1)

1, 1

ACK, ACK, NACK/DTX, ACK

n PUCCH,0 (1)

1, 0

ACK, ACK, NACK/DTX, NACK/DTX

n PUCCH,1 (1)

1, 0

ACK, NACK/DTX, ACK, ACK

n PUCCH,3 (1)

1, 1

ACK, NACK/DTX, ACK, NACK/DTX

n PUCCH,2 (1)

1, 0

ACK, NACK/DTX, NACK/DTX, ACK

n PUCCH,0 (1)

0, 1

ACK, NACK/DTX, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

1, 1

NACK/DTX, ACK, ACK, ACK

n PUCCH,1 (1)

0, 0

NACK/DTX, ACK, ACK, NACK/DTX

n PUCCH,2 (1)

0, 1

NACK/DTX, ACK, NACK/DTX, ACK

n PUCCH,3 (1)

1, 0

NACK/DTX, ACK, NACK/DTX, NACK/DTX

n PUCCH,1 (1)

0, 1

NACK/DTX, NACK/DTX, ACK, ACK

n PUCCH,3 (1)

0, 1

NACK/DTX, NACK/DTX, ACK, NACK/DTX

n PUCCH,2 (1)

0, 0

NACK/DTX, NACK/DTX, NACK/DTX, ACK

n PUCCH,3 (1)

0, 0

NACK, NACK/DTX, NACK/DTX, NACK/DTX

n PUCCH,0 (1)

0, 0

where ACK represents an acknowledgement, NACK represents a negative acknowledgement, and DTX represents a discontinuous transmission.

16. The communication apparatus according to claim 11 , wherein, when M=1, the HARQ-ACK responses for the first cell and the second cell include at least two of HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3), and

wherein the at least two of HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3) are determined based on the following table:

HARQ-

ACK(0)

HARQ-ACK(1)

HARQ-ACK(2)

HARQ-ACK(3)

TB1 first cell

TB2 second cell

TB1 first cell

TB2 first cell

TB3 second cell

TB1 first cell

TB2 first cell

TB3 second cell

TB4 second cell

17. The communication apparatus according to claim 11 , wherein, when M=2, the HARQ-ACK responses for the first cell and the second cell include HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2), and HARQ-ACK(3), and

18. The communication apparatus according to claim 11 , wherein the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell).

19. The communication apparatus according to claim 11 , wherein, based on M being greater than M1, (M-M1) HARQ-ACK responses for the first cell are set to discontinuous transmissions (DTX).

20. The communication apparatus according to claim 11 , wherein, based on M being greater than M2, (M-M2) HARQ-ACK responses for the second cell are set to discontinuous transmissions (DTX).

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2016

From: YANG, SUCKCHEL; AHN, JOONKUI; SEO, DONGYOUN

To: LG ELECTRONICS INC.

Reel/Frame 038608/0368 →

Priority Claims (1)

KR 10-2012-0106158 · Sep 24, 2012 · national

Continuity (8)

Continuation 14802710 · Jul 17, 2015

Continuation 14038558 · Sep 26, 2013

Continuation 14007933

Provisional Application 61538141 · Sep 23, 2011

Provisional Application 61658386 · Jun 11, 2012

Provisional Application 61671104 · Jul 13, 2012

Provisional Application 61696312 · Sep 4, 2012

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