WO1998007241A3 - Method for adjusting carrier frequency, and a radio system - Google Patents

Method for adjusting carrier frequency, and a radio system Download PDF

Info

Publication number
WO1998007241A3
WO1998007241A3 PCT/FI1997/000476 FI9700476W WO9807241A3 WO 1998007241 A3 WO1998007241 A3 WO 1998007241A3 FI 9700476 W FI9700476 W FI 9700476W WO 9807241 A3 WO9807241 A3 WO 9807241A3
Authority
WO
WIPO (PCT)
Prior art keywords
carrier frequency
frequency
radio system
adjusting
basis
Prior art date
Application number
PCT/FI1997/000476
Other languages
French (fr)
Other versions
WO1998007241A2 (en
Inventor
Harri Holma
Timo Laakso
Original Assignee
Harri Holma
Timo Laakso
Nokia Mobile Phones 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 Harri Holma, Timo Laakso, Nokia Mobile Phones Ltd filed Critical Harri Holma
Priority to AU38520/97A priority Critical patent/AU3852097A/en
Publication of WO1998007241A2 publication Critical patent/WO1998007241A2/en
Publication of WO1998007241A3 publication Critical patent/WO1998007241A3/en

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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

Abstract

The invention relates to a method for adjusting carrier frequency in a radio system, and a radio system, a base station (200) comprising measuring means (201) for measuring the received carrier frequency and for comparing the measured carrier frequency with the nominal carrier frequency, and transmission means (202) for sending a command to a subscriber terminal equipment (100) on the basis of the comparison of the frequency if the measured frequency differs essentially from the nominal frequency. The subscriber terminal equipment (100) comprises means (101) for adjusting the carrier frequency used in transmission and reception on the basis of said command, and means (102) for measuring the frequency of the received carrier, and for comparing the measured carrier frequency with the nominal carrier frequency and for adjusting the carrier frequency used in reception on the basis of the comparison.
PCT/FI1997/000476 1996-08-14 1997-08-13 Method for adjusting carrier frequency, and a radio system WO1998007241A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38520/97A AU3852097A (en) 1996-08-14 1997-08-13 Method for adjusting carrier frequency, and a radio system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI963190 1996-08-14
FI963190A FI963190A (en) 1996-08-14 1996-08-14 Method for carrier frequency control and radio system

Publications (2)

Publication Number Publication Date
WO1998007241A2 WO1998007241A2 (en) 1998-02-19
WO1998007241A3 true WO1998007241A3 (en) 1998-04-30

Family

ID=8546490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000476 WO1998007241A2 (en) 1996-08-14 1997-08-13 Method for adjusting carrier frequency, and a radio system

Country Status (3)

Country Link
AU (1) AU3852097A (en)
FI (1) FI963190A (en)
WO (1) WO1998007241A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940695A (en) * 1974-11-18 1976-02-24 Rca Corporation Doppler correction of transmission frequencies
WO1991005410A1 (en) * 1989-09-27 1991-04-18 Motorola, Inc. Method and apparatus for adjusting the frequency of a two-way radio
US5063387A (en) * 1989-11-20 1991-11-05 Unisys Corporation Doppler frequency compensation circuit
US5455964A (en) * 1993-03-26 1995-10-03 Claircom Communications Group, Inc. Stabilization of frequency and power in an airborne communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940695A (en) * 1974-11-18 1976-02-24 Rca Corporation Doppler correction of transmission frequencies
WO1991005410A1 (en) * 1989-09-27 1991-04-18 Motorola, Inc. Method and apparatus for adjusting the frequency of a two-way radio
US5063387A (en) * 1989-11-20 1991-11-05 Unisys Corporation Doppler frequency compensation circuit
US5455964A (en) * 1993-03-26 1995-10-03 Claircom Communications Group, Inc. Stabilization of frequency and power in an airborne communication system

Also Published As

Publication number Publication date
WO1998007241A2 (en) 1998-02-19
AU3852097A (en) 1998-03-06
FI963190A (en) 1998-02-15
FI963190A0 (en) 1996-08-14

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