JPS5541032A - Mobile communication system - Google Patents

Mobile communication system

Info

Publication number
JPS5541032A
JPS5541032A JP11405078A JP11405078A JPS5541032A JP S5541032 A JPS5541032 A JP S5541032A JP 11405078 A JP11405078 A JP 11405078A JP 11405078 A JP11405078 A JP 11405078A JP S5541032 A JPS5541032 A JP S5541032A
Authority
JP
Japan
Prior art keywords
radio
transmitter
mobile station
designation signal
selection
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
JP11405078A
Other languages
Japanese (ja)
Other versions
JPS6161301B2 (en
Inventor
Teruaki Kasugai
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11405078A priority Critical patent/JPS5541032A/en
Publication of JPS5541032A publication Critical patent/JPS5541032A/en
Publication of JPS6161301B2 publication Critical patent/JPS6161301B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To enable to select the radio channel of the mobile station automatically, by providing transmitter which transmits the channel designation signal of radio channel selection designation in low level at all times, in the mobile communication system such as train telephone. CONSTITUTION:The mobile communication system consists of the radio units 9 and 11 to which the first and second radio channels eH1, CH2 are assigned, leakage coaxial cables 16 to 19, channel selection transmitters 25,26 and mobile station 20. The transmitter 25 modulates the carrier frequency of CH2 with the selection designation signal to CH1, transmitter 26 modulates the carrier frequency of CH1 with selection designation signal to CH2, and they are normally transmitting in lower level than the radio units 9 and 11. When the mobile station 20 progresses toward the boundary A between the section 10 and the section 12 and it reaches the point A, the output electric field level from the radio units 9 and 12 is equal. When it reaches point B, the electric field level by the CH2 selection transmitter 26 is in excess of the electric field level from the radio unit 9, the FM receiver of the mobile station 20 receives the designation signal of CH2 to select the radio CH to CH2.
JP11405078A 1978-09-19 1978-09-19 Mobile communication system Granted JPS5541032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11405078A JPS5541032A (en) 1978-09-19 1978-09-19 Mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11405078A JPS5541032A (en) 1978-09-19 1978-09-19 Mobile communication system

Publications (2)

Publication Number Publication Date
JPS5541032A true JPS5541032A (en) 1980-03-22
JPS6161301B2 JPS6161301B2 (en) 1986-12-25

Family

ID=14627772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11405078A Granted JPS5541032A (en) 1978-09-19 1978-09-19 Mobile communication system

Country Status (1)

Country Link
JP (1) JPS5541032A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832363A (en) * 1994-06-20 1998-11-03 Kabushiki Kaisha Toshiba Mobile communication system including service management of traffic machines
JP2001054159A (en) * 1999-08-11 2001-02-23 Mitsubishi Electric Corp Train radio communication system, and method for switching railroad section

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832363A (en) * 1994-06-20 1998-11-03 Kabushiki Kaisha Toshiba Mobile communication system including service management of traffic machines
JP2001054159A (en) * 1999-08-11 2001-02-23 Mitsubishi Electric Corp Train radio communication system, and method for switching railroad section

Also Published As

Publication number Publication date
JPS6161301B2 (en) 1986-12-25

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