JPS6486635A - System for selecting radio channel - Google Patents

System for selecting radio channel

Info

Publication number
JPS6486635A
JPS6486635A JP62242799A JP24279987A JPS6486635A JP S6486635 A JPS6486635 A JP S6486635A JP 62242799 A JP62242799 A JP 62242799A JP 24279987 A JP24279987 A JP 24279987A JP S6486635 A JPS6486635 A JP S6486635A
Authority
JP
Japan
Prior art keywords
channel
idle
calling
retrieved
intermodulation
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
Application number
JP62242799A
Other languages
Japanese (ja)
Inventor
Yasuo Mizudori
Tetsuo Hanazawa
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 JP62242799A priority Critical patent/JPS6486635A/en
Publication of JPS6486635A publication Critical patent/JPS6486635A/en
Pending legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To avoid an event such as disabled transmission of a control signal by intermodulation wave by calculating the intermodulation distortion caused by an operating calling channel and a retrieved communication channel so as to allocate the intermodulation wave to a control channel. CONSTITUTION:A 1st idle calling channel 4b is retrieved and a 1st idle channel 4b is used, then an intermodulation wave generated by the intermodulation distortion with the 1st idle calling channel causes the frequency equal to the control channel 4a in a 2nd idle calling channel 4c, and the channel 4c is retrieved and when the level of the 2nd idle calling channel 4c is a prescribed reception level or below, the 1st idle calling channel 4b is assigned as an enable calling channel. Only when a channel (retrieved destination channel) generating a frequency equal to he frequency of the control channel 4a due to the intermodulation distortion with the idle channel is idle and the reception level is less than a prescribed value, since an idle channel is used, a defect disabling calling regardless of the idle control channel 4a is avoided.
JP62242799A 1987-09-29 1987-09-29 System for selecting radio channel Pending JPS6486635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242799A JPS6486635A (en) 1987-09-29 1987-09-29 System for selecting radio channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242799A JPS6486635A (en) 1987-09-29 1987-09-29 System for selecting radio channel

Publications (1)

Publication Number Publication Date
JPS6486635A true JPS6486635A (en) 1989-03-31

Family

ID=17094460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242799A Pending JPS6486635A (en) 1987-09-29 1987-09-29 System for selecting radio channel

Country Status (1)

Country Link
JP (1) JPS6486635A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448829A (en) * 1990-06-16 1992-02-18 Nec Corp Radio channel allocation system
US7020487B2 (en) 2000-09-12 2006-03-28 Nec Corporation Portable telephone GPS and bluetooth integrated compound terminal and controlling method therefor
JP2007258900A (en) * 2006-03-22 2007-10-04 Mitsubishi Electric Corp Unwanted-wave detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448411A (en) * 1977-09-26 1979-04-17 Nippon Telegr & Teleph Corp <Ntt> Control system for mobile communication

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5448411A (en) * 1977-09-26 1979-04-17 Nippon Telegr & Teleph Corp <Ntt> Control system for mobile communication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448829A (en) * 1990-06-16 1992-02-18 Nec Corp Radio channel allocation system
US7020487B2 (en) 2000-09-12 2006-03-28 Nec Corporation Portable telephone GPS and bluetooth integrated compound terminal and controlling method therefor
JP2007258900A (en) * 2006-03-22 2007-10-04 Mitsubishi Electric Corp Unwanted-wave detector

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