WO1998037711A3 - A receiver unit for a central terminal of a wireless telecommunications system - Google Patents

A receiver unit for a central terminal of a wireless telecommunications system Download PDF

Info

Publication number
WO1998037711A3
WO1998037711A3 PCT/US1998/002056 US9802056W WO9837711A3 WO 1998037711 A3 WO1998037711 A3 WO 1998037711A3 US 9802056 W US9802056 W US 9802056W WO 9837711 A3 WO9837711 A3 WO 9837711A3
Authority
WO
WIPO (PCT)
Prior art keywords
reference signal
receiver unit
processing circuit
signal
central terminal
Prior art date
Application number
PCT/US1998/002056
Other languages
French (fr)
Other versions
WO1998037711A2 (en
Inventor
John Christopher Clifton
Original Assignee
Dsc Telecom Lp
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 Dsc Telecom Lp filed Critical Dsc Telecom Lp
Priority to AU61430/98A priority Critical patent/AU6143098A/en
Publication of WO1998037711A2 publication Critical patent/WO1998037711A2/en
Publication of WO1998037711A3 publication Critical patent/WO1998037711A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

The present invention provides a receiver unit for a central terminal of a wireless telecommunications system arranged to receive signals from a plurality of subscriber terminals. The receiver unit comprises a first processing circuit for processing a received signal, passed to the first processing circuit via an input signal path, to produce a processed signal, a reference signal generator for generating a reference signal having a reference signal parameter that is substantially temperature independent over a predetermined temperature range, and an inserter for inserting the reference signal on the input signal path used to pass the received signal to the first processing circuit. Further, the receiver unit comprises a detector for detecting the reference signal parameter of the reference signal output from the first processing circuit, and a gain controller, responsive to the reference signal parameter detected by the detector, for adjusting the gain of the first processing circuit to cause the reference signal parameter detected at the detector to be a predetermined reference signal parameter. By such an approach, the receiver unit can be automatically calibrated so that a signal received at the antenna of the central terminal at a specified power level will produce an output signal from the receiver unit at a desired voltage level.
PCT/US1998/002056 1997-02-19 1998-02-04 A receiver unit for a central terminal of a wireless telecommunications system WO1998037711A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61430/98A AU6143098A (en) 1997-02-19 1998-02-04 A receiver unit for a central terminal of a wireless telecommunications system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9703419.3 1997-02-19
GB9703419A GB2322490A (en) 1997-02-19 1997-02-19 Calibrating the gain of receiver units for a central terminal of a communications system using a reference signal

Publications (2)

Publication Number Publication Date
WO1998037711A2 WO1998037711A2 (en) 1998-08-27
WO1998037711A3 true WO1998037711A3 (en) 1998-11-26

Family

ID=10807924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/002056 WO1998037711A2 (en) 1997-02-19 1998-02-04 A receiver unit for a central terminal of a wireless telecommunications system

Country Status (3)

Country Link
AU (1) AU6143098A (en)
GB (1) GB2322490A (en)
WO (1) WO1998037711A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0110193D0 (en) * 2001-04-26 2001-06-20 Mitel Semiconductor Ltd Radio frequency interface
US6657491B2 (en) 2001-08-15 2003-12-02 Broadcom Corporation System and method for activating gain stages in an amplification module
EP1446873A4 (en) * 2001-08-15 2004-10-13 Broadcom Corp Method and system for multiple tuner application using a low noise broadband distribution amplifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414632A (en) * 1981-04-07 1983-11-08 Murrell Robert A Automatic monitoring system for radio signal
US5230087A (en) * 1990-09-12 1993-07-20 Belar Electronics Laboratory, Inc. Device for measuring various characteristics of a radio frequency signal
US5257408A (en) * 1992-04-30 1993-10-26 Motorola, Inc. Method for seeking a communication system
US5703902A (en) * 1995-06-16 1997-12-30 Qualcomm Incorporated Method and apparatus for determining signal strength in a variable data rate system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031469A (en) * 1975-09-10 1977-06-21 The Singer Company Receiver gain calibration
US4053890A (en) * 1976-05-25 1977-10-11 The United States Of America As Represented By The Secretary Of The Navy Internal calibration system
US4538150A (en) * 1983-01-10 1985-08-27 Westinghouse Electric Corp. Self-calibration of stacked beam radar
JPS6048625A (en) * 1983-08-29 1985-03-16 Anritsu Corp Receiver capable of eliminating residual spurious
US4994810A (en) * 1990-03-26 1991-02-19 Allied-Signal Inc. Monopulse processor digital correction circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414632A (en) * 1981-04-07 1983-11-08 Murrell Robert A Automatic monitoring system for radio signal
US5230087A (en) * 1990-09-12 1993-07-20 Belar Electronics Laboratory, Inc. Device for measuring various characteristics of a radio frequency signal
US5257408A (en) * 1992-04-30 1993-10-26 Motorola, Inc. Method for seeking a communication system
US5703902A (en) * 1995-06-16 1997-12-30 Qualcomm Incorporated Method and apparatus for determining signal strength in a variable data rate system

Also Published As

Publication number Publication date
GB9703419D0 (en) 1997-04-09
AU6143098A (en) 1998-09-09
GB2322490A (en) 1998-08-26
WO1998037711A2 (en) 1998-08-27

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