Method for transmitting control information and a device therefor

Patent metadata

Field	Value
Publication number	US-9736826-B2
Application number	US-201514961399-A
Country	US
Kind code	B2
Filing date	Dec 7, 2015
Priority date	Nov 18, 2010
Publication date	Aug 15, 2017
Grant date	Aug 15, 2017

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.

First claim

The invention claimed is:

1. A method for transmitting uplink control information when a plurality of serving cells including a primary cell and a secondary cell are configured in a wireless communication system, the method performed by a communication device and comprising:
receiving resource indication information through an Semi-Persistent Scheduling (SPS) activation Physical Downlink Control Channel (PDCCH), the resource indication information indicating one or more Physical Uplink Control Channel (PUCCH) format 1b resources based on a first set of PUCCH format 1b resources configured by a higher layer;
receiving an SPS Physical Downlink Shared Channel (PDSCH) without a corresponding PDCCH in the primary cell after receiving the SPS PDCCH;
selecting a PUCCH format 1b resource corresponding to a plurality of Hybrid Automatic Repeat request—Acknowledgements (HARQ-ACKs) from a second set of PUCCH format 1b resources, the plurality of HARQ-ACKs including reception response information for the SPS PDSCH and the second set of PUCCH format 1b resources including the one or more PUCCH format 1b resources on the basis of the resource indication information; and
transmitting a bit value corresponding to the plurality of HARQ-ACKs using the selected PUCCH format 1b resource,
wherein one PUCCH format 1b resource is provided on the basis of the resource indication information when the primary cell is set to a first transmission mode supporting a transmission of up to one transport block, and a plurality of PUCCH format 1b resources is provided on the basis of the resource indication information when the primary cell is set to a second transmission mode supporting a transmission of up to two or more transport blocks, and
wherein the SPS PDSCH carries only one transport block regardless of whether the primary cell is set to any of the first transmission mode or the second transmission mode.

2. The method according to claim 1 , wherein the resource indication information indicates a single value, and wherein one PUCCH format 1b resource is provided on the basis of the single value when the primary cell is set to the first transmission mode, and a pair of PUCCH format 1b resources is provided on the basis of the single value when the primary cell is set to the second transmission mode.

3. The method according to claim 1 , wherein the relationship among the plurality of HARQ-ACKs, the second set of PUCCH format 1b resources and the bit value includes the relationship shown in Table 1

TABLE 1

HARQ-
HARQ-
HARQ-

ACK(0)
ACK(1)
ACK(2)
n PUCCH, i (1)
b(0)b(1)

ACK
ACK
ACK
n PUCCH, 1 (1)
1, 1

ACK
NACK/DTX
ACK
n PUCCH, 1 (1)
1, 0

NACK/DTX
ACK
ACK
n PUCCH, 1 (1)
0, 1

NACK/DTX
NACK/DTX
ACK
n PUCCH, 2 (1)
1, 1

ACK
ACK
NACK/DTX
n PUCCH, 0 (1)
1, 1

ACK
NACK/DTX
NACK/DTX
n PUCCH, 0 (1)
1, 0

NACK/DTX
ACK
NACK/DTX
n PUCCH, 0 (1)
0, 1

NACK/DTX
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
DTX
DTX
No Transmission

wherein HARQ-ACK(0) and HARQ-ACK(1) represent Acknowledgement/Negative ACK/Discontinuous Transmission (ACK/NACK/DTX) responses to transport blocks of a serving cell set to the second transmission mode, HARQ-ACK(2) represents an ACK/NACK/DTX response to a transport block of a serving cell set to the first transmission mode, n PUCCH,i (1) (i=0, 1, 2) denotes the second set of PUCCH format 1b resources, and b(0)b(1) denotes the bit value, and
wherein n PUCCH,i (1) (i=2) is provided on the basis of the resource indication information when the primary cell is set to the first transmission mode and n PUCCH,i (1) (i=0, 1) is provided on the basis of the resource indication information when the primary cell is set to the second transmission mode.

4. The method according to claim 1 , wherein the relationship among the plurality of HARQ-ACKs, the second set of PUCCH format 1b resources and the bit value includes the relationship shown in Table 2

TABLE 2

HARQ-
HARQ-
HARQ-
HARQ-

ACK(0)
ACK(1)
ACK(2)
ACK(3)
n PUCCH, i (1)
b(0)b(1)

ACK
ACK
ACK
ACK
n PUCCH, 1 (1)
1, 1

ACK
NACK/DTX
ACK
ACK
n PUCCH, 2 (1)
0, 1

NACK/DTX
ACK
ACK
ACK
n PUCCH, 1 (1)
0, 1

NACK/DTX
NACK/DTX
ACK
ACK
n PUCCH, 3 (1)
1, 1

ACK
ACK
ACK
NACK/DTX
n PUCCH, 1 (1)
1, 0

Assignees

• Lg Electronics Inc

Inventors

• Yang Suckchel
• Kim Mingyu
• Han Seunghee

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/0406

  Electricity · mapped topic

• H04L1/1607 Primary

  Details of the supervisory signal · CPC title