JPS5650641A - Mobile communication system - Google Patents

Mobile communication system

Info

Publication number
JPS5650641A
JPS5650641A JP12537579A JP12537579A JPS5650641A JP S5650641 A JPS5650641 A JP S5650641A JP 12537579 A JP12537579 A JP 12537579A JP 12537579 A JP12537579 A JP 12537579A JP S5650641 A JPS5650641 A JP S5650641A
Authority
JP
Japan
Prior art keywords
signal
station
control
transmission line
frame synchronous
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
JP12537579A
Other languages
Japanese (ja)
Other versions
JPS5843939B2 (en
Inventor
Fumiyuki Adachi
Hiroshi Yoshida
Kunio Watanabe
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 JP54125375A priority Critical patent/JPS5843939B2/en
Publication of JPS5650641A publication Critical patent/JPS5650641A/en
Publication of JPS5843939B2 publication Critical patent/JPS5843939B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/462—Testing group delay or phase shift, e.g. timing jitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To realize an easy measurement for the variation of the amount of delay for the transmission line, by securing a multiplex transmission of the control signal and then using the frame synchronous signal as the phase monitor signal. CONSTITUTION:The frame synchronous signal 8, the circuit control signals 9 and 10 plus the base station control signal 11 are supplied to the multiplexing device 12 from the control unit 7 of the radio circuit control station 4. Thus the signals 9-11 are multiplexed to be transmitted to the base station 2 via the control signal transmission line 5 and along with the signal 8. At the station 2, the control signals 15- 17 are isolated through the isolating device 13 and via the signal 8 and then supplied to the transmitters/receivers 19 and 20 plus the control unit 21 each. On the other hand, the reception signal from the mobile station and the control signal from the unit 21 are multiplexed by the device 25 to be transmitted to the station 4. At the station 4, the device 31 gives a monitor to the phase difference between the signal 8 and the frame synchronous signal 27 led out of the isolating device 26. And thus the amount of delay is measured for the transmission line group between the stations 4 and 2.
JP54125375A 1979-10-01 1979-10-01 Mobile communication method Expired JPS5843939B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54125375A JPS5843939B2 (en) 1979-10-01 1979-10-01 Mobile communication method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54125375A JPS5843939B2 (en) 1979-10-01 1979-10-01 Mobile communication method

Publications (2)

Publication Number Publication Date
JPS5650641A true JPS5650641A (en) 1981-05-07
JPS5843939B2 JPS5843939B2 (en) 1983-09-30

Family

ID=14908568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54125375A Expired JPS5843939B2 (en) 1979-10-01 1979-10-01 Mobile communication method

Country Status (1)

Country Link
JP (1) JPS5843939B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253109A (en) * 1985-05-01 1986-11-11 Mitsubishi Electric Corp Control device for strip shape
JPS62168608A (en) * 1986-01-20 1987-07-24 Nippon Steel Corp Shape controlling method for sheet rolling
JPH01264025A (en) * 1988-04-14 1989-10-20 Nec Corp Phase supervision system between fixed stations
WO2001017130A1 (en) * 1999-08-27 2001-03-08 Matsushita Electric Industrial Co., Ltd. Communication terminal device and channel estimating method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253109A (en) * 1985-05-01 1986-11-11 Mitsubishi Electric Corp Control device for strip shape
JPH0471604B2 (en) * 1985-05-01 1992-11-16 Mitsubishi Electric Corp
JPS62168608A (en) * 1986-01-20 1987-07-24 Nippon Steel Corp Shape controlling method for sheet rolling
JPH01264025A (en) * 1988-04-14 1989-10-20 Nec Corp Phase supervision system between fixed stations
WO2001017130A1 (en) * 1999-08-27 2001-03-08 Matsushita Electric Industrial Co., Ltd. Communication terminal device and channel estimating method
US7002939B1 (en) 1999-08-27 2006-02-21 Matsushita Electric Industrial Co., Ltd. Communication terminal device and channel estimating method

Also Published As

Publication number Publication date
JPS5843939B2 (en) 1983-09-30

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