METHOD FOR TRANSMITTING CONTROL INFORMATION AND APPARATUS FOR SAME

• US 20150036613A1
• Filed: 03/12/2013
• Published: 02/05/2015
• Est. Priority Date: 03/12/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seo, Hanbyul, Kim, Hakseong
• Granted Patent: US 9,801,196 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling

Abstract

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for carrying out HARQ action from a terminal operating in one of a plurality of link types, and to an apparatus for same, the method comprising the steps of: a first subframe (SF) receiving scheduling information; a second SF receiving data according to the scheduling information; and a third SF transmitting response information with respect to the data, wherein the first SF, the second SE, and the third SE correspond to a single HARQ process, a SE set which corresponds to the single HARQ process in a first link type comprises a plurality of SF subsets, and wherein each of the SF subsets corresponds to a single HARQ process in a second link type.

Claims

1. A method for performing a hybrid automatic repeat request (HARQ) operation in a user equipment (UE) operating in one of a plurality of link types in a wireless communication system, the method comprising:

receiving scheduling information in a first subframe (SF);

receiving data according to the scheduling information in a second SF; and

transmitting response information to the data in a third SF, wherein;

the first SF, the second SF, and the third SF corresponds to one HARQ process; and

an SF set corresponding to one HARQ process comprises a plurality of SF subsets in a first link type, and each SF subset corresponds to one HARQ process in a second link type.

2. The method according to claim 1, wherein:

the first link type comprises link between the UE and a base station (BS); and

the second link type comprises link between the UE and another UE.

3. The method according to claim 2, wherein the scheduling information is received from the BS, and the data is received from the another UE, and the response information is transmitted to the BS in the case of the second link type.

4. The method according to claim 2, wherein a period of an HARQ process corresponds to 8 subframes in the first link type, a period of an HARQ process corresponds to 8*k subframes in the second link type, and k is an integer equal to or greater than 2.

5. The method according to claim 4, wherein a period of an HARQ process corresponds to 8 subframes in the first link type, and a period of an HARQ process corresponds to 16 subframes in the second link type.

6. The method according to claim 5, wherein an interval between the second SF and the third SF corresponds to 4 subframes in the first link type, and an interval between the second SF and the third SF corresponds to 4 subframes in the second link type.

7. A user equipment (UE) configured to perform a hybrid automatic repeat request (HARQ) operation and to operate in one of a plurality of link types in a wireless communication system, the UE comprising:

a radio frequency (RF) unit; and

a processor,

wherein;

the processor is configured to receive scheduling information in a first subframe (SF), to receive data according to the scheduling information in a second SF, and to transmit response information to the data in a third SF;

the first SF, the second SF, and the third SF corresponds to one HARQ process; and

an SF set corresponding to one HARQ process comprises a plurality of SF subsets in a first link type, and each SF subset corresponds to one HARQ process in a second link type.

8. The UE according to claim 7, wherein:

the first link type comprises link between the UE and a base station (BS); and

the second link type comprises link between the UE and another UE.

9. The UE according to claim 8, wherein the scheduling information is received from the BS, and the data is received from the another UE, and the response information is transmitted to the BS in the case of the second link type.

10. The UE according to claim 8, wherein a period of an HARQ process corresponds to 8 subframes in the first link type, a period of an HARQ process corresponds to 8*k subframes in the second link type, and k is an integer equal to or greater than 2.

11. The UE according to claim 10, wherein a period of an HARQ process corresponds to 8 subframes in the first link type, and a period of an HARQ process corresponds to 16 subframes in the second link type.

12. The UE according to claim 11, wherein an interval between the second SF and the third SF corresponds to 4 subframes in the first link type, and an interval between the second SF and the third SF corresponds to 4 subframes in the second link type.