METHOD FOR TRANSCEIVING DATA IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

• US 20150110027A1
• Filed: 04/24/2013
• Published: 04/23/2015
• Est. Priority Date: 04/25/2012
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lim, Jaewon, Kim, Kijun
• Granted Patent: US 9,413,496 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• 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: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link

Abstract

According to one embodiment of the present invention, a method configured to enable user equipment to transmit or receive data relating to hybrid automatic repeat request (HARQ) process to/from a plurality of base stations in a wireless communication system may comprise the steps of: receiving, from a serving base station, information relating to HARQ processes allocated for the HARQ process of the plurality of base stations, and base station pattern information indicating the base station to/from which the user equipment transmits or receives the data in a specific subframe; and transmitting or receiving the data to/from at least one base station from among the plurality of base stations on the basis of the information relating to the HARQ processes and the base station pattern information.

Claims

1. A method for transmitting or receiving data related to a Hybrid Automatic Repeat reQuest (HARQ) procedure to or from a plurality of Base Stations (BSs) by a User Equipment (UE) in a wireless communication system, the method comprising:

receiving from a serving BS information about HARQ processes allocated for the HARQ procedure with the plurality of BSs and BS pattern information indicating BSs to or from which the UE is configured to transmit or receive the data in specific subframes; and

transmitting or receiving the data to or from at least one of the plurality of BSs based on the information about the HARQ processes and the BS pattern information.

2. The method according to claim 1, wherein the information about the HARQ processes includes Identifiers (IDs) of the plurality of BSs and numbers of the HARQ processes allocated for the HARQ procedure with each of the plurality of BSs.

3. The method according to claim 1, wherein the information about the HARQ processes is determined in consideration of a channel state and/or data load of each of the plurality of BSs.

4. The method according to claim 1, wherein the BS pattern information includes subframe indexes and an ID of a BS to or from which the UE is configured to transmit or receive data in each of subframes indicated by the subframe indexes.

5. The method according to claim 1, wherein the BS pattern information is repeated at a period of n subframes, n being an integer larger than 1.

6. A method for transmitting or receiving data related to a Hybrid Automatic Repeat reQuest (HARQ) procedure to or from a User Equipment (UE) by a Base Station (BS) in a wireless communication system, the method comprising:

transmitting to the UE information about HARQ processes allocated for the HARQ procedure with a plurality of BSs including the BS and BS pattern information indicating BSs to or from which the UE is configured to transmit or receive the data in specific subframes; and

transmitting or receiving the data to or from the UE based on the information about the HARQ processes and the BS pattern information.

7. The method according to claim 6, wherein the information about the HARQ processes includes Identifiers (IDs) of the plurality of BSs and numbers of the HARQ processes allocated for the HARQ procedure with each of the plurality of BSs.

8. The method according to claim 6, wherein the information about the HARQ processes is determined in consideration of a channel state and/or data load of each of the plurality of BSs.

9. The method according to claim 6, wherein the BS pattern information includes subframe indexes and an ID of a BS to or from which the UE is configured to transmit or receive data in each of subframes indicated by the subframe indexes.

10. The method according to claim 6, wherein the BS pattern information is repeated at a period of n subframes, n being an integer larger than 1.

11. A User Equipment (UE) for transmitting or receiving data related to a Hybrid Automatic Repeat reQuest (HARQ) procedure to or from a plurality of Base Stations (BSs) in a wireless communication system, the UE comprising:

a Radio Frequency (RF) unit; and

a processor configured to control the RF unit,

wherein the processor is configured to receive from a serving BS information about HARQ processes allocated for the HARQ procedure with the plurality of BSs and BS pattern information indicating BSs to or from which the UE is configured to transmit or receive the data in specific subframes, and to transmit or receive the data to or from at least one of the plurality of BSs based on the information about the HARQ processes and the BS pattern information.

12. A Base Station (BS) for transmitting or receiving data related to a Hybrid Automatic Repeat reQuest (HARQ) procedure to or from a User Equipment (UE) in a wireless communication system, the BS comprising:

a Radio Frequency (RF) unit; and

a processor configured to control the RF unit,

wherein the process is configured to transmit to the UE information about HARQ processes allocated for the HARQ procedure with a plurality of BSs including the BS and BS pattern information indicating BSs to or from which the UE is configured to transmit or receive the data in specific subframes, and to transmit or receive the data to or from the UE based on the information about the HARQ processes and the BS pattern information.