SE8804374L - AUTOMATICALLY DISPOSABLE RESONANCE MODULE - Google Patents

AUTOMATICALLY DISPOSABLE RESONANCE MODULE

Info

Publication number
SE8804374L
SE8804374L SE8804374A SE8804374A SE8804374L SE 8804374 L SE8804374 L SE 8804374L SE 8804374 A SE8804374 A SE 8804374A SE 8804374 A SE8804374 A SE 8804374A SE 8804374 L SE8804374 L SE 8804374L
Authority
SE
Sweden
Prior art keywords
base station
frequencies
resonance modules
base stations
resonance
Prior art date
Application number
SE8804374A
Other languages
Swedish (sv)
Other versions
SE465054B (en
SE8804374D0 (en
Inventor
U Saldell
Original Assignee
Allgon Ab
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 Allgon Ab filed Critical Allgon Ab
Priority to SE8804374A priority Critical patent/SE465054B/en
Publication of SE8804374D0 publication Critical patent/SE8804374D0/en
Priority to ES89912892T priority patent/ES2090046T3/en
Priority to DE68926860T priority patent/DE68926860T2/en
Priority to EP89912892A priority patent/EP0447411B1/en
Priority to US07/687,888 priority patent/US5408688A/en
Priority to AT89912892T priority patent/ATE140568T1/en
Priority to PCT/SE1989/000705 priority patent/WO1990006627A1/en
Publication of SE8804374L publication Critical patent/SE8804374L/en
Publication of SE465054B publication Critical patent/SE465054B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/16—Automatic frequency control where the frequency control is accomplished by mechanical means, e.g. by a motor

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

In mobile telephone systems it is possible to increase locally the number of available frequencies in base stations within a certain area when the base stations are equipped with a number of separate tuneable resonance modules. In order to carry out the increase by remote control, each base station is equipped with more resonance modules than the number which corresponds to the number of necessary frequencies for normal or low telephone traffic for the base station. When the number of frequencies for a particular base station needs to be increased on account of increasing local traffic intensity, idle resonance modules are tuned to frequencies which are not required by another base station or other base stations for the period of time which is covered by the time of the increased intensity for the base station concerned. The tuning is carried out by the resonance modules concerned 1 each being sent a signal 5 with a certain frequency which can control the setting of the respective resonance module so that its natural frequency becomes the same as the frequency of the incoming signal. <IMAGE>
SE8804374A 1988-12-02 1988-12-02 Device to increase locally the number of available frequencies in base stations in mobile telephone systems SE465054B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8804374A SE465054B (en) 1988-12-02 1988-12-02 Device to increase locally the number of available frequencies in base stations in mobile telephone systems
ES89912892T ES2090046T3 (en) 1988-12-02 1989-11-30 A METHOD AND A DEVICE THAT BELONGS TO AN ELECTRO-MECHANICALLY CONTROLLED RESONANCE MODULE.
DE68926860T DE68926860T2 (en) 1988-12-02 1989-11-30 METHOD AND ARRANGEMENT RELATING TO AN ELECTROMECHANICALLY CONTROLLED RESONANCE MODULE
EP89912892A EP0447411B1 (en) 1988-12-02 1989-11-30 A method and a device pertaining to an electro-mechanically controlled resonance module
US07/687,888 US5408688A (en) 1988-12-02 1989-11-30 Method and a device pertaining to an electro-mechanically controlled resonance module
AT89912892T ATE140568T1 (en) 1988-12-02 1989-11-30 METHOD AND ARRANGEMENT RELATING TO AN ELECTROMECHANICALLY CONTROLLED RESONANCE MODULE
PCT/SE1989/000705 WO1990006627A1 (en) 1988-12-02 1989-11-30 A method and a device pertaining to an electro-mechanically controlled resonance module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8804374A SE465054B (en) 1988-12-02 1988-12-02 Device to increase locally the number of available frequencies in base stations in mobile telephone systems

Publications (3)

Publication Number Publication Date
SE8804374D0 SE8804374D0 (en) 1988-12-02
SE8804374L true SE8804374L (en) 1990-06-03
SE465054B SE465054B (en) 1991-07-15

Family

ID=20374143

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8804374A SE465054B (en) 1988-12-02 1988-12-02 Device to increase locally the number of available frequencies in base stations in mobile telephone systems

Country Status (1)

Country Link
SE (1) SE465054B (en)

Also Published As

Publication number Publication date
SE465054B (en) 1991-07-15
SE8804374D0 (en) 1988-12-02

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