JPS5698957A - Spectral diffusion communication system - Google Patents

Spectral diffusion communication system

Info

Publication number
JPS5698957A
JPS5698957A JP236480A JP236480A JPS5698957A JP S5698957 A JPS5698957 A JP S5698957A JP 236480 A JP236480 A JP 236480A JP 236480 A JP236480 A JP 236480A JP S5698957 A JPS5698957 A JP S5698957A
Authority
JP
Japan
Prior art keywords
group
base station
frequency
mobile stations
interference
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
JP236480A
Other languages
Japanese (ja)
Inventor
Mitsunori Kono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP236480A priority Critical patent/JPS5698957A/en
Publication of JPS5698957A publication Critical patent/JPS5698957A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/12—Arrangements for reducing cross-talk between channels

Landscapes

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

Abstract

PURPOSE:To enable to reject the interference, by dividing each frequency chip into a plurality of groups in frequency division, and assigning each group to switching selection or each communication line. CONSTITUTION:Frequency chips f1, f2...fn detailed on a frequency axis with a given interval are divided into the group A, f1, f3...f2n-1, and group B, f2, f4... f2n so that they are not adjacent in the group. Further, the group A is assigned to mobile stations close to the base station and the group B is to mobile stations at a remote location from the base station respectively. When the frequency chips of each group are selected so that the reception selectivity of the base station is sufficient for adjacent frequency chips, the difficulty of reception of the group B can be prevented from the interference of the waves f2, f4...f2n from remote mobile stations by the waves f1, f3...f2n-1 from close mobile stations to the base station, allowing to avoid interference.
JP236480A 1980-01-11 1980-01-11 Spectral diffusion communication system Pending JPS5698957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP236480A JPS5698957A (en) 1980-01-11 1980-01-11 Spectral diffusion communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP236480A JPS5698957A (en) 1980-01-11 1980-01-11 Spectral diffusion communication system

Publications (1)

Publication Number Publication Date
JPS5698957A true JPS5698957A (en) 1981-08-08

Family

ID=11527197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP236480A Pending JPS5698957A (en) 1980-01-11 1980-01-11 Spectral diffusion communication system

Country Status (1)

Country Link
JP (1) JPS5698957A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993654A (en) * 1995-07-14 1997-04-04 Canon Inc Radio exchange method and radio communication system
US6522637B1 (en) 1998-02-09 2003-02-18 Nec Corporation System and method for allocating a carrier wave frequency of one channel between two carrier wave frequencies of another channel
JP2009290493A (en) * 2008-05-28 2009-12-10 Ntt Docomo Inc Radio communication system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0993654A (en) * 1995-07-14 1997-04-04 Canon Inc Radio exchange method and radio communication system
US6522637B1 (en) 1998-02-09 2003-02-18 Nec Corporation System and method for allocating a carrier wave frequency of one channel between two carrier wave frequencies of another channel
JP2009290493A (en) * 2008-05-28 2009-12-10 Ntt Docomo Inc Radio communication system

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