Method for receiving ACK/NACK signal in mobile communication system

• US 8,116,277 B2
• Filed: 07/08/2011
• Issued: 02/14/2012
• Est. Priority Date: 03/19/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Dae Won, Kim, Bong Hoe, Yun, Young Woo, Kim, Ki Jun, Roh, Dong Wook, Yoon, Suk Hyon, Ahn, Joon Kui, Seo, Dong Youn, Kim, Hak Seong, Lee, Jung Hoon, Kim, Eun Sun, Choi, Sung Duk
• Primary Examiner(s): Wu, Jianye
• Application Number:
  US13/179,319
• Publication Number:
  US 20110268076A1
• Time in Patent Office: 221 Days
• Field of Search: None
• US Class Current: 370/329
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal 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: H04W 28/04 Error control
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• 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

Methods for receiving ACK/NACK signals in a mobile communication system are disclosed. One of the methods including receiving reference signal information and a resource block index corresponding to resource block allocated for transmission of data; identifying ACK/NACK resource information through the reference signal information and the resource block index; and receiving an ACK/NACK signal of the data using the ACK/NACK resource information.

Claims

1. A method of receiving by a user equipment an ACK/NACK (Acknowledgement/Negative ACK) signal from a network node in a mobile communication system, the method comprising:

receiving from the network node control information for uplink resource allocation, the control information including resource block allocation information;

transmitting to the network node a plurality of data blocks by using at least one resource block indicated by the resource block allocation information; and

receiving from the network node ACK/NACK signals of each of the data blocks, wherein a resource index for each of the ACK/NACK signals is identified by using a sum of an index related with a resource block of the at least one resource block and a certain value, and

the certain value is a positive integer or 0 and is identified in consideration of an order of the corresponding data block.

2. The method of claim 1, wherein the step of transmitting the plurality of data blocks includes the step of obtaining a plurality of codewords by encoding the plurality of data blocks, and the step of transmitting to the user equipment the plurality of codewords.

3. The method of claim 1, wherein the index related with the at least one resource block is a lowest index among at least one resource block index indicated by the resource block allocation information.

4. The method of claim 1, wherein the certain value is 0 for first data block, and the certain value is 1 for second data block.

5. The method of claim 1, wherein the control information for the uplink resource allocation is received via at least one control channel element (CCE) which is mapped to first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

6. The method of claim 1, wherein the ACK/NACK signal is received via first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

7. A method of transmitting by a network node an ACK/NACK (Acknowledgement/Negative ACK) signal to a user equipment in a mobile communication system, the method comprising:

transmitting to the user equipment control information for uplink resource allocation, the control information including resource block allocation information;

receiving from the user equipment a plurality of data blocks by using at least one resource block indicated by the resource block allocation information; and

transmitting to the user equipment ACK/NACK signals of each of the data blocks, wherein a resource index for each of the ACK/NACK signals is identified by using a sum of an index related with a resource block of the at least one resource block and a certain value, and

the certain value is a positive integer or 0 and is identified in consideration of an order of the corresponding data block.

8. The method of claim 7, wherein the step of receiving the plurality of data blocks includes the step of receiving from the user equipment a plurality of codewords, and the step of obtaining the plurality of data blocks by decoding the plurality of codewords.

9. The method of claim 7, wherein the index related with the at least one resource block is a lowest index among at least one resource block index indicated by the resource block allocation information.

10. The method of claim 7, wherein the certain value is 0 for first data block, and the certain value is 1 for second data block.

11. The method of claim 7, wherein the control information for the uplink resource allocation is received via at least one control channel element (CCE) which is mapped to first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

12. The method of claim 7, wherein the ACK/NACK signal is received via first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

13. A user equipment (UE) for receiving an ACK/NACK (Acknowledgement/Negative ACK) signal from a network node in a mobile communication system, the UE comprising:

a memory unit; and

a processor,

wherein the processor is configured to;

receive from the network node control information for uplink resource allocation, the control information including resource block allocation information, configured to transmit to the network node a plurality of data blocks by using at least one resource block indicated by the resource block allocation information, and configured to receive from the network node ACK/NACK signals of each of the data blocks,

wherein a resource index for each of the ACK/NACK signals is identified by using a sum of an index related with a resource block of the at least one resource block and a certain value, and

the certain value is a positive integer or 0 and is identified in consideration of an order of the corresponding data block.

14. The UE of claim 13, wherein the transmitting the plurality of data blocks includes obtaining a plurality of codewords by encoding the plurality of data blocks, and transmitting to the user equipment the plurality of codewords.

15. The UE of claim 13, wherein the index related with the at least one resource block is a lowest index among at least one resource block index indicated by the resource block allocation information.

16. The UE of claim 13, wherein the certain value is 0 for first data block, and the certain value is 1 for second data block.

17. The UE of claim 13, wherein the control information for the uplink resource allocation is received via at least one control channel element (CCE) which is mapped to first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

18. The UE of claim 13, wherein the ACK/NACK signal is received via first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

19. A network node for transmitting an ACK/NACK (Acknowledgement/Negative ACK) signal to a user equipment in a mobile communication system, the network node comprising:

a memory unit; and

a processor,

wherein the processor is configured to transmit to the user equipment control information for uplink resource allocation, the control information including resource block allocation information, configured to receive from the user equipment a plurality of data blocks by using at least one resource block indicated by the resource block allocation information, and configured to transmit to the user equipment ACK/NACK signals of each of the data blocks,

wherein a resource index for each of the ACK/NACK signals is identified by using a sum of an index related with a resource block of the at least one resource block and a certain value, and

the certain value is a positive integer or 0 and is identified in consideration of an order of the corresponding data block.

20. The network node of claim 19, wherein the receiving the plurality of data blocks includes receiving from the user equipment a plurality of codewords, and obtaining a plurality of data blocks by decoding the plurality of codewords.

21. The network node of claim 19, wherein the index related with the at least one resource block is a lowest index among at least one resource block index indicated by the resource block allocation information.

22. The network node of claim 19, wherein the certain value is 0 for first data block, and the certain value is 1 for second data block.

23. The network node of claim 19, wherein the control information for the uplink resource allocation is received via at least one control channel element (CCE) which is mapped to first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.

24. The network node of claim 19, wherein the ACK/NACK signal is received via first n orthogonal frequency division multiplexing (OFDM) symbol(s) in a subframe.