IP Library › Granted Patent US 9,042,327

Granted Patent B2

US 9,042,327 · App. 13/884,566 · Granted May 26, 2015

Method for transmitting control information and a device therefor

Inventors: Suckchel Yang (Anyang-si, KR); Mingyu Kim (Anyang-si, KR); Seunghee Han (Anyang-si, KR)

Assignee: LG ELECTRONICS INC.

H04W72/0406 H04L1/1825 H04L1/1893 H04L5/001 H04L5/0053 H04L5/0055 H04L1/1607 H04L1/1861 H04L5/0007 H04L5/008 H04L5/0094

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Quick Facts

Patent No.: US 9,042,327
App. No.: 13/884,566
Granted: May 26, 2015
Kind: B2

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Abstract

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information and to a device therefor, and relates to a method comprising the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs, from a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs, by using the selected uplink control channel resource. The present invention also relates to a device for the method.

Claims (412)

1. A method for transmitting uplink control information by a user equipment (UE) configured with a plurality of serving cells including a primary cell and a secondary cell in a wireless communication system, the method comprising:

receiving, by the UE from a base station (BS), information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the information indicating at least one Physical Uplink Control Channel (PUCCH) resource of a first set of PUCCH resources having been configured by an RRC (Radio Resource Control) layer and corresponding to a predefined PUCCH format;

after receiving the SPS activation PDCCH, receiving, by the UE from the BS, an SPS Physical Downlink Shared Channel (PDSCH) via the primary cell without receiving a corresponding PDCCH in the primary cell, the SPS PDSCH including only one transport block when the primary cell is set to a first transmission mode supporting a transmission of only a single transport block via the SPS PDSCH, the SPS PDSCH including up to two transport blocks when the primary cell is set to a second transmission mode supporting a transmission of up to two transport blocks via the SPS PDSCH;

generating, by the UE, a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) response corresponding to the SPS PDSCH received via the primary cell;

one of:

selectively transmitting, by the UE to the BS, two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH when the primary cell is set to the first transmission mode, and

selectively transmitting, by the UE to the BS, the two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH and another resource related to the resource indicated by the SPS PDCCH when the primary cell is set to the second transmission mode.

2. The method of claim 1 , wherein the predefined PUCCH format is PUCCH format 1b.

3. The method of claim 1 ,

wherein the information indicating the at least one PUCCH resource indicates a single value, and

wherein a single PUCCH resource, of the first set of PUCCH resources, based on the single value is used to transmit the HARQ-ACK response when the primary cell is set to the first transmission mode, and a pair of PUCCH resources, of the first set of PUCCH resources, based on the single value is used to transmit the HARQ-ACK response when the primary cell is set to the second transmission mode.

4. The method of claim 1 , further comprising:

receiving a PDSCH via the secondary cell; and

generating a HARQ-ACK response corresponding to the PDSCH received via the secondary cell,

wherein the transmitted two bits correspond to both the HARQ-ACK response corresponding to the PDSCH received via the secondary cell and the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell.

5. The method of claim 4 , wherein a relationship among the HARQ-ACK response corresponding to the PDSCH received via the secondary cell, the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, the second set of PUCCH resources, and the transmitted two bits includes the relationship shown in Table 1:

TABLE 1

HARQ-

ACK(0)

HARQ-ACK(1)

ACK(2)

n PUCCH,i (1)

b(0)b(1)

ACK

n PUCCH,1 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,1 (1)

1, 0

NACK/DTX

ACK

n PUCCH,1 (1)

0, 1

NACK/DTX

ACK

n PUCCH,2 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,0 (1)

0, 1

NACK/DTX

NACK

n PUCCH,2 (1)

0, 0

NACK

NACK/DTX

DTX

n PUCCH,0 (1)

0, 0

NACK/DTX

NACK

DTX

n PUCCH,0 (1)

0, 0

DTX

No Transmission

wherein HARQ-ACK(0), HARQ-ACK(1) and HARQ-ACK(2) represent the HARQ-ACK response corresponding to the PDSCH received via the secondary cell and the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, n PUCCH,i (1) (i=0, 1, 2) denotes the second set of PUCCH resources, and b(0)b(1) denotes the transmitted two bits,

wherein, when the primary cell is set to the first transmission mode, n PUCCH,i (1) (i=2) is the resource indicated by the information received via the SPS activation PDCCH, and

wherein, when the primary cell is set to the second transmission mode, n PUCCH,i (1) (i=0) is the resource indicated by the information received via the SPS activation PDCCH and n PUCCH,i (1) (i=1) is the another resource.

6. The method of claim 4 , wherein a relationship among the HARQ-ACK response corresponding to the PDSCH received via the secondary cell, the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, the second set of PUCCH resources, and the transmitted two bits includes the relationship shown in Table 2:

TABLE 2

HARQ-

ACK(0)

ACK(1)

ACK(2)

ACK(3)

n PUCCH,i (1)

b(0)b(1)

ACK

n PUCCH,1 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

0, 1

NACK/DTX

ACK

n PUCCH,1 (1)

0, 1

NACK/DTX

ACK

n PUCCH,3 (1)

1, 1

ACK

NACK/DTX

n PUCCH,1 (1)

1, 0

ACK

NACK/DTX

ACK

NACK/DTX

n PUCCH,2 (1)

0, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,1 (1)

0, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,3 (1)

1, 0

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

ACK

n PUCCH,3 (1)

0, 1

NACK/DTX

ACK

n PUCCH,3 (1)

0, 0

ACK

NACK/DTX

n PUCCH,0 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,0 (1)

0, 1

NACK/DTX

NACK

NACK/DTX

n PUCCH,0 (1)

0, 0

NACK

NACK/DTX

n PUCCH,0 (1)

0, 0

DTX

NACK/DTX

No Transmission

wherein HARQ-ACK(0), HARQ-ACK(1), HARQ-ACK(2) and HARQ-ACK(3) represent the HARQ-ACK response corresponding to the PDSCH received via the secondary cell and the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, n PUCCH,i (1) (i=0, 1, 2, 3) denotes the second set of PUCCH resources, and b(0)b(1) denotes the transmitted two bits, and

7. The method of claim 6 ,

wherein n PUCCH,i (1) (i=2, 3) is provided using PUCCH format 1b resource indexes of a third set configured by the RRC layer.

8. The method of claim 1 , wherein the information is received through a TPC (Transmit Power Control) field of the SPS activation PDCCH.

9. A user equipment (UE) configured to transmit uplink control information in a wireless communication system, the UE configured with a plurality of serving cells including a primary cell and a secondary cell and comprising:

an RF (Radio Frequency) unit; and

a processor operatively connected to the RF unit and configured to:

receive, from a base station (BS), information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the information indicating at least one Physical Uplink Control Channel (PUCCH) resource of a first set of PUCCH resources having been configured by an RRC (Radio Resource Control) layer and corresponding to a predefined PUCCH format;

after receiving the SPS activation PDCCH, receive, from the BS, an SPS Physical Downlink Shared Channel (PDSCH) via the primary cell without receiving a corresponding PDCCH in the primary cell, the SPS PDSCH including only one transport block when the primary cell is set to a first transmission mode supporting a transmission of only a single transport block via the SPS PDSCH, the SPS PDSCH including up to two transport blocks when the primary cell is set to a second transmission mode supporting a transmission of up to two transport blocks via the SPS PDSCH;

generate a Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) response corresponding to the SPS PDSCH received via the primary cell;

one of:

selectively transmit two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH when the primary cell is set to the first transmission mode, and

selectively transmit the two bits corresponding to the HARQ-ACK response using one of a second set of PUCCH resources including the resource indicated by the SPS activation PDCCH and another resource related to the resource indicated by the SPS activation PDCCH when the primary cell is set to the second transmission mode.

10. The UE of claim 9 , wherein the predefined PUCCH format is PUCCH format 1b.

11. The UE of claim 9 ,

wherein the information indicating the at least one PUCCH resource indicates a single value, and

12. The UE of claim 9 , further comprising:

receiving a PDSCH via the secondary cell; and

generating a HARQ-ACK response corresponding to the PDSCH received via the secondary cell,

13. The UE of claim 12 , wherein a relationship among the HARQ-ACK response corresponding to the PDSCH received via the secondary cell, the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, the second set of PUCCH resources, and the transmitted two bits includes the relationship shown in Table 1:

TABLE 1

HARQ-

ACK(0)

HARQ-ACK(1)

ACK(2)

n PUCCH,i (1)

b(0)b(1)

ACK

n PUCCH,1 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,1 (1)

1, 0

NACK/DTX

ACK

n PUCCH,1 (1)

0, 1

NACK/DTX

ACK

n PUCCH,2 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,0 (1)

0, 1

NACK/DTX

NACK

n PUCCH,2 (1)

0, 0

NACK

NACK/DTX

DTX

n PUCCH,0 (1)

0, 0

NACK/DTX

NACK

DTX

n PUCCH,0 (1)

0, 0

DTX

No Transmission

wherein, when the primary cell is set to the first transmission mode, n PUCCH,i (1) (i=2) is the resource indicated by the information received via the SPS activation PDCCH, and

14. The UE of claim 12 , wherein a relationship among the HARQ-ACK response corresponding to the PDSCH received via the secondary cell, the HARQ-ACK response corresponding to the SPS PDSCH received via the primary cell, the second set of PUCCH resources, and the transmitted two bits includes the relationship shown in Table 2:

TABLE 2

HARQ-

ACK(0)

ACK(1)

ACK(2)

ACK(3)

n PUCCH,i (1)

b(0)b(1)

ACK

n PUCCH,1 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

0, 1

NACK/DTX

ACK

n PUCCH,1 (1)

0, 1

NACK/DTX

ACK

n PUCCH,3 (1)

1, 1

ACK

NACK/DTX

n PUCCH,1 (1)

1, 0

ACK

NACK/DTX

ACK

NACK/DTX

n PUCCH,2 (1)

0, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,1 (1)

0, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,3 (1)

1, 0

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

1, 1

ACK

NACK/DTX

ACK

n PUCCH,2 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

ACK

n PUCCH,3 (1)

0, 1

NACK/DTX

ACK

n PUCCH,3 (1)

0, 0

ACK

NACK/DTX

n PUCCH,0 (1)

1, 1

ACK

NACK/DTX

n PUCCH,0 (1)

1, 0

NACK/DTX

ACK

NACK/DTX

n PUCCH,0 (1)

0, 1

NACK/DTX

NACK

NACK/DTX

n PUCCH,0 (1)

0, 0

NACK

NACK/DTX

n PUCCH,0 (1)

0, 0

DTX

NACK/DTX

No Transmission

15. The UE of claim 14 ,

wherein n PUCCH,i (1) (i=2, 3) is provided using PUCCH format 1b resource indexes of a third set configured by the RRC layer.

16. The UE of claim 9 , wherein the information is received through a TPC (Transmit Power Control) field of the SPS activation PDCCH.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 9, 2013

From: YANG, SUCKCHEL; KIM, MINGYU; HAN, SEUNGHEE

To: LG ELECTRONICS INC.

Reel/Frame 030388/0144 →

Continuity (4)

Provisional Application 61415304 · Nov 18, 2010

Provisional Application 61434404 · Jan 19, 2011

Provisional Application 61435170 · Jan 21, 2011

Related Publication 20130242923A1 · Sep 19, 2013