METHOD FOR TRANSMITTING/RECEIVING SIGNAL AND DEVICE THEREFOR

• US 20140022962A1
• Filed: 03/26/2012
• Published: 01/23/2014
• Est. Priority Date: 03/24/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Suckchel, Kim, Mingyu, Ahn, Joonkui, Seo, Dongyoun
• Granted Patent: US 9,014,065 B2
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 25/03891 Spatial equalizers MIMO diversity systems H04B7/0413
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04L 5/22 using time-division multiplexing
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting an uplink signal in a wireless communication system supporting a carrier merge, and a device therefor, the method comprising the steps of: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and transmitting reception response information on the data through a UL subframe of the second cell, wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set in a specific TDD UL-DL configuration inside a TDD UL-DL configuration set, and the specific TDD UL-DL configuration is the TDD UL-DL configuration having the least number of DL subframes from one or more TDD UL-DL configurations, in which subframes set as a DL in the first cell or the second cell are all set as DLs.

Claims

1. A method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation, the method comprising:

configuring a first cell having a first TDD (Time Division Duplex) UL-DL (Uplink-Downlink) configuration and a second cell having a second TDD UL-DL configuration;

receiving data through a DL subframe of the first cell; and

transmitting acknowledgement information on the data through a UL subframe of the second cell,

wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set to a specific TDD UL-DL configuration in a TDD UL-DL configuration set,

wherein the specific TDD UL-DL configuration is a TDD UL-DL configuration having a smallest number of DL subframes among one or more TDD UL-DL configurations in which one or more subframes configured as DL in the first cell or the second cell are all configured as DL.

2. The method according to claim 1, wherein the TDD UL-DL configuration set includes a plurality of TDD UL-DL configurations defined in the following table

3. The method according to claim 2, wherein the DL subframe is subframe #n−

k (kε

K), the UL subframe is subframe #n, K;

{k₀, k₁, . . . , k_M-1} is defined according to TDD UL-DL configuration as shown in the following table, and M is an integer equal to or greater than 1.

4. The method according to claim 2, wherein a combination of the first TDD UL-DL configuration and the second TDD UL-DL configuration corresponds to one of the following combinations:

TDD UL-DL configuration #1 and TDD UL-DL configuration #3

TDD UL-DL configuration #2 and TDD UL-DL configuration #3; and

TDD UL-DL configuration #2 and TDD UL-DL configuration #4.

5. The method according to claim 1, wherein the first cell is a secondary cell and the second cell is a primary cell.

6. A communication device configured to transmit an uplink signal in a wireless communication system supporting carrier aggregation, the communication device comprising:

a radio frequency (RF) unit; and

a processor,

wherein the processor is configured to configure a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration, to receive data through a DL subframe of the first cell, and to transmit acknowledgement information on the data through a UL subframe of the second cell,

wherein the relationship between the DL subframe and the UL subframe is determined by a parameter value set to a specific TDD UL-DL configuration in a TDD UL-DL configuration set,

wherein the specific TDD UL-DL configuration is a TDD UL-DL configuration having a smallest number of DL subframes among one or more TDD UL-DL configurations in which one or more subframes configured as DL in the first cell or the second cell are all configured as DL.

7. The communication device according to claim 6, wherein the TDD UL-DL configuration set includes a plurality of TDD UL-DL configurations defined in the following table

8. The communication device according to claim 7, wherein the DL subframe is subframe #n−

k (kε

K), the UL subframe is subframe #n, K;

{k₀, k₁, . . . , k_M-1} is defined according to TDD UL-DL configuration as shown in the following table, and M is an integer equal to or greater than 1.

9. The communication device according to claim 7, wherein a combination of the first TDD UL-DL configuration and the second TDD UL-DL configuration corresponds to one of the following combinations:

TDD UL-DL configuration #1 and TDD UL-DL configuration #3

TDD UL-DL configuration #2 and TDD UL-DL configuration #3; and

TDD UL-DL configuration #2 and TDD UL-DL configuration #4.

10. The communication device according to claim 6, wherein the first cell is a secondary cell and the second cell is a primary cell.