JPS5573157A - Data communication system - Google Patents
Data communication systemInfo
- Publication number
- JPS5573157A JPS5573157A JP14528278A JP14528278A JPS5573157A JP S5573157 A JPS5573157 A JP S5573157A JP 14528278 A JP14528278 A JP 14528278A JP 14528278 A JP14528278 A JP 14528278A JP S5573157 A JPS5573157 A JP S5573157A
- Authority
- JP
- Japan
- Prior art keywords
- data
- transmission
- error
- circuit
- detected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1692—Physical properties of the supervisory signal, e.g. acknowledgement by energy bursts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1657—Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE:To realize a high-speed process for the data in a simple and low-cost constitution by sending back the answer signal only in case no error is detected in the reception data block at the reception side and then transmitting again the data at the transmission side only when no answer signal exists. CONSTITUTION:The ACK signal of the single frequency is transmitted to the transmission sode from affirmative answer character ACK signal generator circuit A only when no error is detected through error detector circuit E for the data blocks which are received in sequence at the reception side. While at the transmission side, the answer signal is detected at detector circuit D, and then the next data of buffer B2 is read out through buffer reading control circuit BR and based on the output signal. And the block number is given at transmission data formation circuit N for transmission of the data. No ACK signal is delivered at the reception side when some error is detected at the block data, and thus detector circuit D of the transmission side detects the error. And circuit BR gives switching to buffer B0 again after transmission of data BL1 to transmit data BL0 again.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14528278A JPS5573157A (en) | 1978-11-27 | 1978-11-27 | Data communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14528278A JPS5573157A (en) | 1978-11-27 | 1978-11-27 | Data communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5573157A true JPS5573157A (en) | 1980-06-02 |
Family
ID=15381526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14528278A Pending JPS5573157A (en) | 1978-11-27 | 1978-11-27 | Data communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5573157A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5797250A (en) * | 1980-12-09 | 1982-06-16 | Ricoh Co Ltd | Data transmission system for automatic retransmission request system |
JPS5797249A (en) * | 1980-12-09 | 1982-06-16 | Ricoh Co Ltd | Data transmission system |
JPS58157231A (en) * | 1982-03-15 | 1983-09-19 | Matsushita Electric Works Ltd | Bidirectional wireless device |
JPS6158357A (en) * | 1984-08-30 | 1986-03-25 | Fujitsu Ltd | Data communication system |
US5274667A (en) * | 1992-10-23 | 1993-12-28 | David Olmstead | Adaptive data rate packet communications system |
US5657005A (en) * | 1991-08-31 | 1997-08-12 | Temic Telefunken Microelectronic Gmbh | Operation of a system using a remote control |
US5657342A (en) * | 1992-10-23 | 1997-08-12 | Olmstead; David | Adaptive data rate packet communication system |
JP2002135233A (en) * | 2000-09-12 | 2002-05-10 | Lucent Technol Inc | Method and apparatus for asynchronous incremental redundancy reception in communication system |
WO2007052719A1 (en) * | 2005-11-01 | 2007-05-10 | Ntt Docomo, Inc. | Retransmission control method and receiving-end apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4998506A (en) * | 1973-01-22 | 1974-09-18 | ||
JPS5345909A (en) * | 1976-10-08 | 1978-04-25 | Okura Denki Co Ltd | System for identifying transmission result at transmitting station |
-
1978
- 1978-11-27 JP JP14528278A patent/JPS5573157A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4998506A (en) * | 1973-01-22 | 1974-09-18 | ||
JPS5345909A (en) * | 1976-10-08 | 1978-04-25 | Okura Denki Co Ltd | System for identifying transmission result at transmitting station |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5797250A (en) * | 1980-12-09 | 1982-06-16 | Ricoh Co Ltd | Data transmission system for automatic retransmission request system |
JPS5797249A (en) * | 1980-12-09 | 1982-06-16 | Ricoh Co Ltd | Data transmission system |
JPS58157231A (en) * | 1982-03-15 | 1983-09-19 | Matsushita Electric Works Ltd | Bidirectional wireless device |
JPS6158357A (en) * | 1984-08-30 | 1986-03-25 | Fujitsu Ltd | Data communication system |
US5657005A (en) * | 1991-08-31 | 1997-08-12 | Temic Telefunken Microelectronic Gmbh | Operation of a system using a remote control |
US5274667A (en) * | 1992-10-23 | 1993-12-28 | David Olmstead | Adaptive data rate packet communications system |
US5657342A (en) * | 1992-10-23 | 1997-08-12 | Olmstead; David | Adaptive data rate packet communication system |
JP2002135233A (en) * | 2000-09-12 | 2002-05-10 | Lucent Technol Inc | Method and apparatus for asynchronous incremental redundancy reception in communication system |
WO2007052719A1 (en) * | 2005-11-01 | 2007-05-10 | Ntt Docomo, Inc. | Retransmission control method and receiving-end apparatus |
JPWO2007052719A1 (en) * | 2005-11-01 | 2009-04-30 | 株式会社エヌ・ティ・ティ・ドコモ | Retransmission control method and receiving apparatus |
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