METHOD OF ASSOCIATING AUTOMATIC REPEAT REQUEST WITH HYBRID AUTOMATIC REPEAT REQUEST

• US 20110119549A1
• Filed: 05/21/2009
• Published: 05/19/2011
• Est. Priority Date: 07/01/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kong, Tae Gon, Lee, Jin, Kim, Yong Ho
• Granted Patent: US 8,438,444 B2
• Time in Patent Office: Days
• US Class Current: 714/748
• 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 1/1887 Scheduling and prioritising arrangements

Abstract

A method of associating ARQ with HARQ is disclosed. The method includes constructing a plurality of coding blocks using an MPDU received from an ARQ entity of a transmitter, transmitting each of the coding blocks to a receiver according to an HARQ operation, discontinuing the coding block transmission, when transmission of a coding block is failed, transmitting an error message indicating a number of the failed coding block to the ARQ entity of the transmitter, receiving ARQ blocks corresponding to the failed coding block from the ARQ entity of the transmitter, constructing at least one coding block using the received ARQ blocks, and retransmitting the at least one coding block to the receiver according to the operation.

Claims

1. A method of associating Automatic Repeat reQuest (ARQ) with Hybrid Automatic Repeat reQuest (HARQ), comprising:

constructing a plurality of coding blocks using a Media Access Control (MAC) Protocol Data Unit (MPDU) received from an ARQ entity of a transmitter and transmitting each of the coding blocks to a receiver according to an HARQ operation;

discontinuing the coding block transmission, when transmission of a coding block is failed, and transmitting an error message indicating a number of the failed coding block to the ARQ entity of the transmitter;

receiving ARQ blocks corresponding to the failed coding block from the ARQ entity of the transmitter; and

constructing at least one coding block using the received ARQ blocks and retransmitting the at least one coding block to the receiver according to the HARQ operation.

2. The method according to claim 1, wherein the error message transmission comprises determining that the transmission of the coding block is failed, when as many Negative ACKnowledgment (NACK) messages as a maximum retransmission number or more NACK messages than the maximum retransmission number are received for the coding block from the receiver.

3. The method according to claim 1, wherein the ARQ block reception comprises receiving the ARQ blocks corresponding to the failed coding block, which are extracted according to the number of the failed coding block and a coding block unit size by the ARQ entity of the transmitter.

4. The method according to claim 1, wherein the ARQ block reception comprises, if any of the ARQ blocks corresponding to the failed coding block belongs to two or more coding blocks, receiving the entire ARQ block from the ARQ entity of the transmitter.

5. The method according to claim 1, wherein the ARQ block reception comprises receiving only the ARQ blocks belonging to the failed coding block from the ARQ entity of the transmitter.

6. The method according to claim 1, wherein the ARQ block reception comprises receiving the ARQ blocks belonging to the failed coding block and ARQ blocks that are not yet transmitted to the receiver according to the HARQ operation from the ARQ entity of the transmitter.

7. The method according to claim 1, wherein each of the coding blocks includes a Cyclic Redundancy Check (CRC).

8. A method of associating Automatic Repeat reQuest (ARQ) with Hybrid Automatic Repeat reQuest (HARQ), comprising:

constructing a plurality of coding blocks using a Media Access Control (MAC) Protocol Data Unit (MPDU) received from an ARQ entity of a transmitter and transmitting each of the coding blocks to a receiver according to an HARQ operation;

transmitting an error message indicating a number of a failed coding block to the ARQ entity of the transmitter after the coding blocks are transmitted according to the HARQ operation, when transmission of the coding block is failed;

receiving ARQ blocks corresponding to the failed coding block from the ARQ entity of the transmitter; and

constructing at least one coding block using the received ARQ blocks and retransmitting the at least one coding block to the receiver according to the HARQ operation.

9. The method according to claim 8, wherein the error message transmission comprises determining that the transmission of the coding block is failed, when as many Negative ACKnowledgment (NACK) messages as a maximum retransmission number or more NACK messages than the maximum retransmission number are received for the coding block from the receiver.

10. The method according to claim 8, wherein each of the coding blocks includes a Cyclic Redundancy Check (CRC).