NO20002086L - Calibration of subscriber terminal for wireless telecommunication system - Google Patents

Calibration of subscriber terminal for wireless telecommunication system

Info

Publication number
NO20002086L
NO20002086L NO20002086A NO20002086A NO20002086L NO 20002086 L NO20002086 L NO 20002086L NO 20002086 A NO20002086 A NO 20002086A NO 20002086 A NO20002086 A NO 20002086A NO 20002086 L NO20002086 L NO 20002086L
Authority
NO
Norway
Prior art keywords
signal processing
processing unit
signals
calibration logic
unit
Prior art date
Application number
NO20002086A
Other languages
Norwegian (no)
Other versions
NO20002086D0 (en
Inventor
Martin Lysejko
Tarlochan Singh Gohlar
Original Assignee
Airspan Networks Inc
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 Airspan Networks Inc filed Critical Airspan Networks Inc
Publication of NO20002086D0 publication Critical patent/NO20002086D0/en
Publication of NO20002086L publication Critical patent/NO20002086L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Abstract

En abonnentterminal for kommunikasjon over en trådløs forbindelse med en sentral terminal i et trådløst telekommunikasjonssystem omfatter en første signalbehandlende enhet (110) knyttet til en antenne (100) for å sende og motta signaler over den trådløse forbindelse, en andre signalbehandlende enhet (130) fjernt fra den første (110) og knyttet til en telekommunikasjonsutstyrsenhet (150) for å overføre signaler mellom tele- kommunikasjonsutstyrsenheten og den første signalbehandlende enhet (110), og et forbindelsesmedium (120) som forbinder nevnte første og andre signalbehandlende enheter med hverandre. Kalibreringslogikk anordnet i den andre signalbehandlende enhet (130) er innrettet for på forbindelsesmediet (120) å frembringe styresignaler som brukes for å styre kretser i den første signalbehandlende enhet (110), for derved å få signaler til å bli overført på forbindelsesmediet fra den første til den andre signalbehand- lende enhet, slik at det blir mulig for kalibreringslogikken å fastlegge et signaltap som innføres av forbindelsesmediet (120). Kompensasjonskretsutstyr drives da av kalibrer- ingslogikken for å kompensere for signaltapet fastlagt av kalibreringslogikken. Derved kan den mengde kretsutstyr som fordres i den første signalbehandlende enhet knyttet til antennen reduseres, slik at enhetens kompleksitet reduseres, mens det fortsatt er mulig å bestemme den kompensasjon som fordres for å kompensere for tap i mottatte og sendte signaler, som stammer fra at disse signaler sendes over forbindelsesmediet.A subscriber terminal for communication over a wireless connection to a central terminal of a wireless telecommunication system comprises a first signal processing unit (110) associated with an antenna (100) for transmitting and receiving signals over the wireless connection, a second signal processing unit (130) remote from the first (110) and associated with a telecommunications equipment unit (150) to transmit signals between the telecommunications equipment unit and the first signal processing unit (110), and a communication medium (120) connecting said first and second signal processing units with each other. Calibration logic arranged in the second signal processing unit (130) is arranged to produce on the connection medium (120) control signals used to control circuits in the first signal processing unit (110), thereby causing signals to be transmitted on the connection medium from the first to the second signal processing unit so as to enable the calibration logic to determine a signal loss introduced by the connection medium (120). Compensation circuit equipment is then driven by the calibration logic to compensate for the signal loss determined by the calibration logic. Thereby, the amount of circuitry required in the first signal processing unit associated with the antenna can be reduced so that the unit's complexity is reduced, while it is still possible to determine the compensation required to compensate for losses in received and transmitted signals, which result from these signals are sent over the connection medium.

NO20002086A 1997-11-20 2000-04-19 Calibration of subscriber terminal for wireless telecommunication system NO20002086L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9724615A GB2331667A (en) 1997-11-20 1997-11-20 Compensation for signal loss between antenna processing unit and modem unit of a subscriber terminal
PCT/GB1998/003416 WO1999027732A1 (en) 1997-11-20 1998-11-13 Calibration of subscriber terminal for wireless telecommunications system

Publications (2)

Publication Number Publication Date
NO20002086D0 NO20002086D0 (en) 2000-04-19
NO20002086L true NO20002086L (en) 2000-07-20

Family

ID=10822421

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002086A NO20002086L (en) 1997-11-20 2000-04-19 Calibration of subscriber terminal for wireless telecommunication system

Country Status (11)

Country Link
EP (1) EP1033049A1 (en)
BR (1) BR9814219A (en)
CA (1) CA2311470A1 (en)
GB (1) GB2331667A (en)
ID (1) ID24169A (en)
MX (1) MXPA00005026A (en)
NO (1) NO20002086L (en)
PL (1) PL340557A1 (en)
TR (1) TR200001453T2 (en)
WO (1) WO1999027732A1 (en)
ZA (1) ZA9810594B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100376298B1 (en) * 1999-09-13 2003-03-17 가부시끼가이샤 도시바 Radio communication system
GB2410397B (en) * 2004-01-21 2007-11-14 Airspan Networks Inc A subscriber terminal for a telecommunications system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056016B2 (en) * 1979-11-08 1985-12-07 デイエツクスアンテナ株式会社 Level measuring device for satellite broadcasting antenna
JPS60119A (en) * 1983-06-15 1985-01-05 Mitsubishi Electric Corp Satellite broadcast receiver
JPH05176329A (en) * 1991-12-20 1993-07-13 Sony Corp Satellite broadcast receiving system
JP3248785B2 (en) * 1992-12-14 2002-01-21 富士通株式会社 Wireless transmission / reception device capable of loopback test
US5630212A (en) * 1994-03-28 1997-05-13 P-Com, Inc. Microwave radio system with software configuration of operating parameters
US5737687A (en) * 1995-03-01 1998-04-07 Qualcomm Incorporated Self-attenuating RF transceiver system using antenna and modem interfaces and cable link
DE69625748T2 (en) * 1995-06-21 2003-06-26 Nec Corp Cable loss equalizer device for use in a radio communication system

Also Published As

Publication number Publication date
GB9724615D0 (en) 1998-01-21
TR200001453T2 (en) 2000-09-21
GB2331667A (en) 1999-05-26
EP1033049A1 (en) 2000-09-06
ZA9810594B (en) 1999-05-25
WO1999027732A1 (en) 1999-06-03
ID24169A (en) 2000-07-13
MXPA00005026A (en) 2003-08-01
BR9814219A (en) 2000-10-03
PL340557A1 (en) 2001-02-12
GB2331667A9 (en)
CA2311470A1 (en) 1999-06-03
NO20002086D0 (en) 2000-04-19

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application