METHOD AND DEVICE FOR OBTAINING AND RECEIVING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM

• US 20140307696A1
• Filed: 11/07/2012
• Published: 10/16/2014
• Est. Priority Date: 11/11/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Choi, Hyeyoung, Kim, Jinmin, Han, Seunghee, Son, Hyukmin, Lee, Hyunwoo
• Granted Patent: US 9,924,502 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0038 Blind format detection for detection of modulation format H04L27/0012
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• 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 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A method of obtaining control information on a terminal in a wireless communication system according to an embodiment of the present invention includes performing blind decoding for a joint DCI format including at least two DCI formats for at least two terminals including the terminal, wherein the size of the joint DCI format is determined depending on the kind of the at least two DCI formats, and the terminal further receives information for performing blind decoding on the DCI format for the terminal in the joint DCI format.

Claims

1. As a method of a user equipment for acquiring control information in a wireless communication system, the method for acquiring control information comprises:

performing blind decoding for a joint DCI format including at least two or more DCI formats, for at least two or more user equipments including the user equipment,

wherein a size of the joint DCI format is decided in accordance with the two or more DCI format types, and

wherein the user equipment further receives information for performing blind decoding on a DCI format for the user equipment in the joint DCI format.

2. The method of claim 1, wherein the information includes the number of the at least two or more DCI format, information on a position index of a DCI format for the user equipment among the at least two or more DCI formats, and a starting point of the at least two or more DCI formats.

3. The method of claim 1, wherein the information includes a number of the at least two or more DCI format, information on a position index of a DCI format for the user equipment among the at least two or more DCI formats, and a type of the at least two or more DCI formats.

4. The method of claim 1, wherein, in case the at least two or more DCI formats are different from one another, DCI format types being included in the two or more DCI formats are limited to two types.

5. The method of claim 1, wherein a cyclic redundancy check attached to the joint DCI format corresponds to a radio network temporary identifier shared by two to more user equipments.

6. The method of claim 1, wherein the at least two or more DCI formats are dependent on a transmission mode set up for the two or more user equipments.

7. As a method of a base station for transmitting control information in a wireless communication system, the method for transmitting control information comprises:

transmitting a joint DCI format including at least two or more DCI formats for at least two or more user equipments,

wherein a size of the joint DCI format is decided in accordance with the two or more DCI format types, and

wherein the base station further transmits information allowing a user equipment to perform blind decoding on a DCI format for the user equipment in the joint DCI format.

8. The method of claim 7, wherein the information includes a number of the at least two or more DCI format, information on a position index of a DCI format for the user equipment among the at least two or more DCI formats, and a starting point of the at least two or more DCI formats.

9. The method of claim 7, wherein the information includes a number of the at least two or more DCI format, information on a position index of a DCI format for the user equipment among the at least two or more DCI formats, and a type of the at least two or more DCI formats.

10. The method of claim 7, wherein, in case the at least two or more DCI formats are different from one another, DCI format types being included in the two or more DCI formats are limited to two types.

11. The method of claim 7, wherein a cyclic redundancy check attached to the joint DCI format corresponds to a radio network temporary identifier shared by two to more user equipments.

12. The method of claim 7, wherein the at least two or more DCI formats are dependent on a transmission mode set up for the two or more user equipments.

13. As a user equipment device in a wireless communication system, the user equipment device comprises:

a reception module; and

a processor,

wherein the processor is configured to perform blind decoding for a joint DCI format including at least two or more DCI formats, for at least two or more user equipment devices including the user equipment device, wherein a size of the joint DCI format is decided in accordance with the two or more DCI format types, and to further receive information for performing blind decoding on a DCI format for the user equipment device in the joint DCI format.

14. As a base station device in a wireless communication system, the base station device comprises:

a transmission module; and

a processor,

wherein the processor is configured to transmit a joint DCI format including at least two or more DCI formats for at least two or more user equipments, wherein a size of the joint DCI format is decided in accordance with the two or more DCI format types, and to further transmit information allowing a user equipment to perform blind decoding on a DCI format for the user equipment in the joint DCI format.