Method of associating automatic repeat request with hybrid automatic repeat request

• US 8,438,444 B2
• Filed: 05/21/2009
• Issued: 05/07/2013
• Est. Priority Date: 07/01/2008
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Jin, Kim, Yong Ho, Kong, Tae Gon
• Primary Examiner(s): Tabone, Jr., John J
• Application Number:
  US12/997,170
• Publication Number:
  US 20110119549A1
• Time in Patent Office: 1,447 Days
• Field of Search: 714/748, 714/749, 370/216, 370/241, 370/242, 375/224, 455/8
• 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 HARQ operation.

Claims

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

constructing at least one coding block using ARQ blocks received from an ARQ entity of a transmitting side;

transmitting each of the at least one coding block to a receiving side according to a HARQ operation;

transmitting an error message indicating a number of a transmission failure coding block to the ARQ entity of the transmitting side, wherein the error message includes a size of a coding block unit of the at least one coding block;

receiving at least one ARQ block corresponding to the transmission failure coding block from the ARQ entity of the transmitting side, wherein the received at least one ARQ block is constructed based on the number of the transmission failure coding block and the size of the coding block unit;

constructing another at least one coding block using the at least one ARQ block corresponding to the transmission failure coding block; and

retransmitting the another at least one coding block to the receiving side according to the HARQ operation.

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

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

4. The method according to claim 1, wherein the ARQ block reception comprises, if any of the at least one ARQ block corresponding to the transmission failure coding block belongs to two or more coding blocks, receiving the entire ARQ block from the ARQ entity of the transmitting side.

5. The method according to claim 1, wherein the at least one ARQ block reception comprises receiving only at least one ARQ block belonging to the transmission failure coding block from the ARQ entity of the transmitting side.

6. The method according to claim 1, wherein the at least one ARQ block reception comprises receiving at least one ARQ block belonging to the transmission failure coding block and ARQ blocks that are not yet transmitted to the receiving side according to the HARQ operation from the ARQ entity of the transmitting side.

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