Data transmission apparatus and method for an HARQ data communication system

• US 6,697,988 B2
• Filed: 05/24/2001
• Issued: 02/24/2004
• Est. Priority Date: 05/24/2000
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Beong-Jo, Kim, Min-Koo
• Primary Examiner(s): Ton, David
• Application Number:
  US09/864,988
• Publication Number:
  US 20020004924A1
• Time in Patent Office: 1,006 Days
• Field of Search: 714/746, 714/774, 714/790, 714/752, 714/751, 714/776, 714/748, 375/259
• US Class Current: 714/752
• CPC Class Codes: H04L 1/0068 by puncturing
• CPC Class Codes: H04L 1/0073 Special arrangements for feedback channel
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1816 with retransmission of the same, encoded, message
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel

Abstract

An apparatus provided with a plurality of transport channels, transmits a data block and a control message having control bits required in decoding data bits. A first rate matching part provided in a selected one of the transport channels, passing the data block, punctures a predetermined number of data bits from the data bits within the data block. A second rate matching part provided in another transport channel, repeats the control bits as many as the predetermined number of punctured bits.

Claims

1. A method for transmitting a data block having a sequence of data bits and a control message having control bits required for decoding the sequence of data bits, comprising the steps of:

puncturing a predetermined number of data bits of the data bits within the data block using a puncturer in a first transport channel for passing the data block;

repeating a control message within the control message using a repeater in a second transport channel based on the predetermined number of punctured bits;

multiplexing the punctured data block and repeated control message; and

transmitting the multiplexed bit to a receiver.

2. The method as claimed in claim 1, wherein the second transport channel includes the control message arranged at the head thereof.

3. The method as claimed in claim 1, wherein the second transport channel includes the control channel message arranged at the tail thereof.

4. The method as claimed in claim 1, wherein the control message is a message responding to a received data block.

5. The method as claimed in claim 1, wherein the control message includes a serial number of a transmission data block, a version number of a given data block.

6. The method as claimed in claim 1, wherein the second transport channel has a transmission delay time equal to that of the first transport channel.

7. The method as claimed in claim 1, wherein the second transport channel has a transmission delay time less than that of the first transport channel.

8. An apparatus provided with a plurality of transport channels, for transmitting a data block having a sequence of data bits and a control message having control bits required for decoding the sequence of data bits, the apparatus comprising:

a first rate matching part provided in a selected transport channel, passing the data block, for puncturing a predetermined number of data bits of the data bits within the data block;

a second rate matching part provided in another transport channel, for repeating the control bits according to the predetermined number of punctured bits; and

a multiplexer for multiplexing the output of the first rate maching part and the output of the second rate maching part.

9. The method as claimed in claim 8, wherein the second transport channel includes the control message arranged at the head thereof.

10. The method as claimed in claim 8, wherein the second transport channel includes the control message arranged at the tail thereof.

11. The method as claimed in claim 8, wherein the control message is a message responding to a received data block.

12. The method as claimed in claim 8, wherein the control message includes a serial number of a transmission data block, a version number of a given data block.

13. The method as claimed in claim 8, wherein the second transport channel has a transmission delay time equal to that of the first transport channel.

14. The method as claimed in claim 8, wherein the second transport channel has a transmission delay time less than that of the first transport channel.