METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM

• US 20100098005A1
• Filed: 03/19/2008
• Published: 04/22/2010
• Est. Priority Date: 03/19/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ann, Joon Kui, Lee, Jung Hoon, Kim, Ki Jun, Seo, Dong Youn, Kim, Bong Hoe, Yun, Young Woo, Kim, Eun Sun, Yoon, Suk Hyon, Kim, Hak Seong, Lee, Dae Won, Roh, Dong Wook, Choi, Sung Duk
• Granted Patent: US 8,155,070 B2
• Time in Patent Office: Days
• 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

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 an ACK/NACK signal in mobile communication system, the method comprising:

receiving reference signal information and a resource block index which corresponds with a resource block allocated for data transmission;

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.

2. The method according to claim 1, wherein the resource block index is a lowest one among resource block indexes for resource blocks allocated to the data transmission.

3. The method according to claim 1, wherein the reference signal information is a cyclic shift value for a specific sequence.

4. The method according to claim 3, wherein the specific sequence is orthogonal or good for cross-correlation characteristic with a sequence cyclic-shifted by the cyclic shift value.

5. The method according to claim 1, wherein the reference signal is allocated from a reference signal set including a plurality of reference signal.

6. The method according to claim 1, wherein a number of the resource block allocated for the data transmission is equal or larger than a rank value applied to the mobile communication system.

7. A method for receiving an ACK/NACK signal in mobile communication system, the method comprising:

identifying an ACK/NACK resource index mapped to a resource block index which corresponds with a resource block allocated for control channel transmission; and

receiving an ACK/NACK signal for data associated with the control channel using a ACK/NACK resource block which corresponds with the ACK/NACK resource index,

wherein at least one of the ACK/NACK resource index is double-mapped to a plurality of resource block index.

8. The method according to claim 7, wherein the ACK/NACK resource index is double-mapped to the plurality of resource block index by a specific ACK/NACK resource index group.

9. The method according to claim 8, wherein the ACK/NACK resource index in the specific ACK/NACK resource index group is double-mapped with a different mapping order.

10. The method according to claim 7, wherein the ACK/NACK resource index is double-mapped to the plurality of resource block index to avoid a collision of the ACK/NACK resource block.

11. The method according to claim 7, wherein the resource block index is a lowest one among resource block indexes for resource blocks allocated to the control channel transmission.