WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, AND WIRELESS COMMUNICATION METHOD

• US 20130019144A1
• Filed: 05/24/2012
• Published: 01/17/2013
• Est. Priority Date: 07/12/2011
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: HARATA, Masakazu, SHIRASAWA, Hidetoshi
• Granted Patent: US 8,726,135 B2
• Time in Patent Office: Days
• US Class Current: 714/807
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/2975 Judging correct decoding, e.g. iteration stopping criteria
• CPC Class Codes: H04L 1/0051 Stopping criteria
• CPC Class Codes: H04L 1/0054 Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0066 Parallel concatenated codes
• CPC Class Codes: H04L 1/0067 Rate matching H04L1/0013 and H04L1/08 take precedence
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]

Abstract

A wireless communication system includes: a dividing unit to divide data into a plurality of first code blocks; a generation unit to generate first error detection information for each of the plurality of code blocks; a transmission unit to wirelessly transmit at least one of the plurality of first code blocks using a first channel and the first error detection information using a second channel; a reception unit to receive a plurality of second code blocks and second error detection information transmitted wirelessly; and a detection unit to execute error detection on each of the plurality of second code blocks using the second error detection information and to control a continuation of the error detection for the code blocks based on a result of the error detection.

Claims

1. A wireless communication system comprising:

a dividing unit to divide data into a plurality of first code blocks;

a generation unit to generate first error detection information for each of the plurality of code blocks;

a transmission unit to wirelessly transmit at least one of the plurality of first code blocks using a first channel and the first error detection information using a second channel;

a reception unit to receive a plurality of second code blocks and second error detection information transmitted wirelessly; and

a detection unit to execute error detection on each of the plurality of second code blocks using the second error detection information and to control a continuation of the error detection for the code blocks based on a result of the error detection.

2. The wireless communication system according to claim 1,

wherein the detection unit repeats the error detection at least once for each of the plurality of second code blocks and stops the repetition of the error detection when no error is detected.

3. The wireless communication system according to claim 1,

wherein the second channel is a channel used to transmit control information.

4. A wireless communication apparatus comprising:

a reception unit to receive a plurality of code blocks and error detection information for each of the plurality of code blocks; and

a detection unit to execute error detection on each of the plurality of code blocks using the error detection information and to control a continuation of the error detection for the plurality of code blocks based on a result of the error detection.

5. The wireless communication apparatus according to claim 4,

wherein the detection unit repeats the error detection at least once for each of the plurality of code blocks and stops the repetition of the error detection when no error is detected.

6. A wireless communication apparatus comprising:

a dividing unit to divide data into a plurality of code blocks;

a generation unit to generate error detection information for each of the plurality of code blocks; and

a transmission unit to wirelessly transmit at least one of the plurality of code blocks using a first channel and the error detection information using a second channel.

7. The wireless communication apparatus according to claim 6,

wherein the second channel is a channel used to transmit control information.

8. A wireless communication method comprising:

dividing data into a plurality of code blocks by a wireless communication apparatus on a transmission side;

generating error detection information for each of the plurality of code blocks;

transmitting wirelessly at least one of the plurality of code blocks using a first channel and the error detection information using a second channel;

receiving, by a wireless communication apparatus on a reception side, the plurality of code blocks and the error detection information wirelessly transmitted;

executing error detection on each of a received code blocks using received error detection information; and

controlling an continuation of the error detection for the received code blocks based on result of the error detection.

9. The wireless communication method according to claim 8, further comprising:

repeating the error detection at least once for each of the received code blocks; and

stopping the repetition of the error detection when no error is detected.

10. The wireless communication method according to claim 8,

wherein the second channel is a channel used to transmit control information.

11. A wireless communication method comprising:

receiving a plurality of code blocks and error detection information for each of the plurality of code blocks;

executing error detection on each of a received code blocks using received error detection information; and

controlling an continuation of the error detection for the received code blocks based on a result of the error detection.

12. The wireless communication method according to claim 11, further comprising:

repeating the error detection at least once for each of the received code blocks; and

stopping the repetition of the error detection when no error is detected.