Method for receiving ACK/NACK signal in mobile communication system

• US 9,826,518 B2
• Filed: 04/06/2016
• Issued: 11/21/2017
• 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:
  US15/092,337
• Publication Number:
  US 20160219562A1
• Time in Patent Office: 594 Days
• 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

A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.

Claims

1. A method for receiving by a user equipment acknowledgement/Negative ACK (ACK/NACK) signals from a network node in a multiple input multiple output (MIMO) mobile communication system, the method comprising:

transmitting, to the network node, a plurality of data blocks by using one or more physical resource blocks (PRBs), wherein the data blocks are converted into respective codewords mapped to layers for MIMO transmission, and each PRB is one-to-one mapped to a respective virtual resource block (VRB); and

receiving, from the network node, ACK/NACK signals of the plurality of data blocks,

wherein a resource index for the ACK/NACK signal corresponding to a first data block of the plurality of data blocks is identified by using β

×

I_RB,

wherein a resource index for the ACK/NACK signal corresponding to a second data block of the plurality of data blocks is identified by using α

+β

×

I_RB,

wherein α

is a constant, β

is a constant, and I_RB is a lowest PRB index of one or more PRB indexes corresponding to the one or more PRBs.

2. The method of claim 1, wherein α

is a constant other than 0.

3. The method of claim 2, wherein α

is a positive integer.

4. The method of claim 2, wherein β

is a constant other than 0.

5. The method of claim 1, further comprising:

receiving, from the network node, uplink resource allocation for the plurality of data blocks.

6. A method for transmitting by a network node acknowledgement/Negative ACK (ACK/NACK) signals to a user equipment in a multiple input multiple output (MIMO) mobile communication system, the method comprising:

receiving, from the user equipment, a plurality of data blocks by using one or more physical resource blocks (PRBs), wherein the data blocks are associated with respective codewords mapped to layers for MIMO transmission, and each PRB is one-to-one mapped to a respective virtual resource block (VRB); and

transmitting, to the user equipment, ACK/NACK signals of the plurality of data blocks,

wherein a resource index for the ACK/NACK signal corresponding to a first data block of the plurality of data blocks is identified by using β

×

IRB,

wherein a resource index for the ACK/NACK signal corresponding to a second data block of the plurality of data blocks is identified by using α

+β

×

IRB,

wherein α

is a constant, β

is a constant, and IRB is a lowest PRB index of one or more PRB indexes corresponding to the one or more PRBs.

7. The method of claim 6, wherein α

is a constant other than 0.

8. The method of claim 7, wherein α

is a positive integer.

9. The method of claim 7, wherein β

is a constant other than 0.

10. The method of claim 6, further comprising:

transmitting, to the user equipment, uplink resource allocation for the plurality of data blocks.

11. A user equipment used for receiving acknowledgement/Negative ACK (ACK/NACK) signals from a network node in a multiple input multiple output (MIMO) mobile communication system, the user equipment comprising:

a memory unit; and

a processor,

wherein the processor is configured to;

transmit, to the network node, a plurality of data blocks by using one or more physical resource blocks (PRBs), wherein the data blocks are converted into respective codewords mapped to layers for MIMO transmission, and each PRB is one-to-one mapped to a respective virtual resource block (VRB); and

receive, from the network node, ACK/NACK signals of the plurality of data blocks,

wherein a resource index for the ACK/NACK signal corresponding to a first data block of the plurality of data blocks is identified by using β

×

I_RB,

wherein a resource index for the ACK/NACK signal corresponding to a second data block of the plurality of data blocks is identified by using α

+β

×

I_RB,

wherein α

is a constant, β

is a constant, and I_RB is a lowest PRB index of one or more PRB indexes corresponding to the one or more PRBs.

12. The user equipment of claim 11, wherein α

is a constant other than 0.

13. The user equipment of claim 12, wherein α

is a positive integer.

14. The user equipment of claim 12, wherein β

is a constant other than 0.

15. The user equipment of claim 11, wherein the processor is further configured to:

receive, from the network node, uplink resource allocation for the plurality of data blocks.

16. A network node used for transmitting acknowledgement/Negative ACK (ACK/NACK) signals to a user equipment in a multiple input multiple output (MIMO) mobile communication system, the network node comprising:

a memory unit; and

a processor,

wherein the processor is configured to;

receive, from the user equipment, a plurality of data blocks by using one or more physical resource blocks (PRBs), wherein the data blocks are associated with respective codewords mapped to layers for MIMO transmission, and each PRB is one-to-one mapped to a respective virtual resource block (VRB); and

transmit, to the user equipment, ACK/NACK signals of the plurality of data blocks,

wherein a resource index for the ACK/NACK signal corresponding to a first data block of the plurality of data blocks is identified by using β

×

IRB,

wherein a resource index for the ACK/NACK signal corresponding to a second data block of the plurality of data blocks is identified by using α

+β

×

IRB,

wherein α

is a constant, β

is a constant, and IRB is a lowest PRB index of one or more PRB indexes corresponding to the one or more PRBs.

17. The network node of claim 16, wherein α

is a constant other than 0.

18. The network node of claim 17, wherein α

is a positive integer.

19. The network node of claim 17, wherein β

is a constant other than 0.

20. The network node of claim 16, wherein the processor is further configured to:

transmit, to the user equipment, uplink resource allocation for the plurality of data blocks.