JPS56115043A - Transmission diversity communication system - Google Patents

Transmission diversity communication system

Info

Publication number
JPS56115043A
JPS56115043A JP1780680A JP1780680A JPS56115043A JP S56115043 A JPS56115043 A JP S56115043A JP 1780680 A JP1780680 A JP 1780680A JP 1780680 A JP1780680 A JP 1780680A JP S56115043 A JPS56115043 A JP S56115043A
Authority
JP
Japan
Prior art keywords
output
divided
differential
clock
receiver
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.)
Granted
Application number
JP1780680A
Other languages
Japanese (ja)
Other versions
JPS6336585B2 (en
Inventor
Shigeaki Ogose
Kazuaki Murota
Kenkichi Hiraide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1780680A priority Critical patent/JPS56115043A/en
Publication of JPS56115043A publication Critical patent/JPS56115043A/en
Publication of JPS6336585B2 publication Critical patent/JPS6336585B2/ja
Granted legal-status Critical Current

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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To reduce occurring frequency of the code error, by securing a simultaneous transmission of a plural number of signals that are obtained by giving a differential conversion to the digital signal with addition of the main modulation given by the differential conversion signal plus an additional modulation. CONSTITUTION:In the transmission system, the output 7 of the digital generator 1 is supplied to the differential code converting circuit 2. The output 8 received a differential code conversion is divided into two parts and then applied to the transmitters 3 and 4 to receive an additional modulation by the waveforms that satisfy the complementary relation to each other. These modulated outputs 9 and 10 are transmitted at one time through the transmission antennas 5 and 6. In the reception system 2, the reception signal received through the reception antenna 12 is put into the receiver 13, and the output of the receiver is led to the 2-bit delay wave detector 14. The output of 19 of the detector 14 is divided into two parts. One of the divided two outputs is supplied to the clock regenerator 16 to obtain the regenerated clock 20; and the other one is let to the discriminator 15 to receive a discrimination/ decision synchronously with the clock 20 to obtain the discrimination output 21. As a result, the error factor can be improved greatly.
JP1780680A 1980-02-18 1980-02-18 Transmission diversity communication system Granted JPS56115043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1780680A JPS56115043A (en) 1980-02-18 1980-02-18 Transmission diversity communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1780680A JPS56115043A (en) 1980-02-18 1980-02-18 Transmission diversity communication system

Publications (2)

Publication Number Publication Date
JPS56115043A true JPS56115043A (en) 1981-09-10
JPS6336585B2 JPS6336585B2 (en) 1988-07-20

Family

ID=11953963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1780680A Granted JPS56115043A (en) 1980-02-18 1980-02-18 Transmission diversity communication system

Country Status (1)

Country Link
JP (1) JPS56115043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239063A1 (en) * 2002-08-26 2004-03-25 Siemens Ag Data symbol transmission method for communications system with simultaneous transmission of at least 2 data symbols via antenna element selected in dependence on data symbol coding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239063A1 (en) * 2002-08-26 2004-03-25 Siemens Ag Data symbol transmission method for communications system with simultaneous transmission of at least 2 data symbols via antenna element selected in dependence on data symbol coding

Also Published As

Publication number Publication date
JPS6336585B2 (en) 1988-07-20

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