Method for receiving ACK/NACK signal in mobile communications system

• US 9,331,816 B2
• Filed: 05/08/2015
• Issued: 05/03/2016
• 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:
  US14/707,670
• Publication Number:
  US 20150244503A1
• Time in Patent Office: 361 Days
• US Class Current: 1/1
• 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 of transmitting control information by a user equipment, the method comprising:

receiving, by the user equipment, downlink allocation information via one control channel element (CCE) or plural control channel elements (CCEs), wherein CCE is a resource unit used for control information transmission;

receiving, by the user equipment, downlink data in accordance with the downlink allocation information; and

transmitting, by the user equipment, an Acknowledgement/Negative Acknowledgement (ACK/NACK) signal corresponding to the downlink data,

wherein when the downlink allocation information is received via one CCE, a resource index for the ACK/NACK signal corresponds to the CCE index,

wherein when the downlink allocation information is received via plural CCEs, a resource index for the ACK/NACK signal corresponds to the lowest one of CCE indexes of the plural CCEs.

2. A method of receiving control information at a network node, the method comprising:

transmitting, by the network node, downlink allocation information via one control channel element (CCE) or plural control channel elements (CCEs), wherein CCE is a resource unit used for control information transmission;

transmitting, by the network node, downlink data in accordance with the downlink allocation information; and

receiving, by the network node, an Acknowledgement/Negative Acknowledgement (ACK/NACK) signal corresponding to the downlink data,

wherein when the downlink allocation information is received via one CCE, a resource index for the ACK/NACK signal corresponds to the CCE index,

wherein when the downlink allocation information is received via plural CCEs, a resource index for the ACK/NACK signal corresponds to the lowest one of CCE indexes of the plural CCEs.

3. A user equipment comprising:

a memory unit; and

a processor, wherein the processor is configured to;

receive downlink allocation information via one control channel element (CCE) or plural control channel elements (CCEs), wherein CCE is a resource unit used for control information transmission;

receive downlink data in accordance with the downlink allocation information, and

transmit an Acknowledgement/Negative Acknowledgement (ACK/NACK) signal corresponding to the downlink data,

wherein when the downlink allocation information is received via one CCE, a resource index for the ACK/NACK signal corresponds to the CCE index,

wherein when the downlink allocation information is received via plural CCEs, a resource index for the ACK/NACK signal corresponds to the lowest one of CCE indexes of the plural CCEs.

4. A network node comprising:

a memory unit; and

a processor, wherein the processor is configured to;

transmit downlink allocation information via one control channel element (CCE) or plural control channel elements (CCEs), wherein CCE is a resource unit used for control information transmission,

transmit downlink data in accordance with the downlink allocation information, and

receive an Acknowledgement/Negative Acknowledgement (ACK/NACK) signal corresponding to the downlink data,

wherein when the downlink allocation information is received via one CCE, a resource index for the ACK/NACK signal corresponds to the CCE index,

wherein when the downlink allocation information is received via plural CCEs, a resource index for the ACK/NACK signal corresponds to the lowest one of CCE indexes of the plural CCEs.