HK1063243A1 - Adaptive rf amplifier prelimiter - Google Patents

Adaptive rf amplifier prelimiter Download PDF

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Publication number
HK1063243A1
HK1063243A1 HK04105990.5A HK04105990A HK1063243A1 HK 1063243 A1 HK1063243 A1 HK 1063243A1 HK 04105990 A HK04105990 A HK 04105990A HK 1063243 A1 HK1063243 A1 HK 1063243A1
Authority
HK
Hong Kong
Prior art keywords
signal
output
amplifier
base station
power level
Prior art date
Application number
HK04105990.5A
Other languages
English (en)
French (fr)
Chinese (zh)
Other versions
HK1063243B (en
Inventor
Fatih M. Ozluturk
Brian Kiernan
Original Assignee
Interdigital Technology Corporation
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 Interdigital Technology Corporation filed Critical Interdigital Technology Corporation
Publication of HK1063243A1 publication Critical patent/HK1063243A1/en
Publication of HK1063243B publication Critical patent/HK1063243B/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude
    • H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average or variance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Burglar Alarm Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Radio Relay Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Claims (7)

  1. Basisstation zur Übertragung von Signalen unter Nutzung eines CDMA-Verfahrens, Folgendes aufweisend:
    eine Einrichtung (34) zum Kombinieren einer Vielzahl von Spreizspektrum-Datensignalen (281 - 28N), wobei der Ausgang der Kombinierungseinrichtung (34) ein kombiniertes Signal (44) mit einem fluktuierenden Leistungspegel ist; eine Einrichtung (36), zum Modulieren des kombinierten Signals (44), um ein HF-Signal zur Übertragung zu erzeugen;
    eine Einrichtung (52) zum Messen eines Mittelwertes eines Absolutwerts, einer näherungsweisen Varianz, einer Näherung der Standardabweichung, eines Mittelwertes eines Quadrats des Ausgangs der Kombinierungseinrichtung (34) für einen vorgegebenen Zeitraum; und
    eine Einrichtung (50) zum adaptiven Begrenzen eines Ausgangs der Kombinierungseinrichtung (34) auf einen berechneten Leistungspegel zumindest zum Teil auf Grundlage des gemessenen Mittelwertes eines Absolutwerts, einer näherungweisen Varianz, einer Näherung der Standardabweichung oder eines Mittelwertes des Quadrats des Ausgangs der Kombinierungseinrichtung für einen vorgegebenen Zeitraum.
  2. Basisstation nach Anspruch 1, ferner einen Verstärker (38) zum Verstärken des HF-Signals aufweisend, und wobei die Messeinrichtung (52) einen Ausgang des Verstärkers (38) über den vorgegebenen Zeitraum misst.
  3. Basisstation nach Anspruch 1, wobei der berechnete Leistungspegel zweimal so hoch ist wie eine Standardabweichung.
  4. Basisstation nach Anspruch 1, wobei der berechnete Leistungspegel mindestens eine Standardabweichung ist.
  5. Basisstation nach Anspruch 1, wobei eine Verarbeitungseinrichtung (54) die adaptive Begrenzungseinrichtung (50) deaktiviert, wenn eine Anzahl von aktiven Benutzern einen vorgegebenen Wert erreicht.
  6. Basisstation nach Anspruch 1, wobei eine Verarbeitungseinrichtung (54) die adaptive Begrenzungseinrichtung (50) während einer Übertragung von Kurzrufnummern deaktiviert.
  7. Basisstation nach Anspruch 1, ferner einen Verstärker (38) aufweisend, zum Verstärken des HF-Signals vor einer Übertragung, wobei die Messeinrichtung (52) einen Leistungspegel des Ausgangs bestimmt; wobei eine Verstärkung des Verstärkers (38) durch eine Verarbeitungseinrichtung (54) im Ansprechen auf den berechneten Leistungspegel und gespeicherte Verstärkungscharakteristika des Verstärkers (38) eingestellt wird.
HK04105990.5A 1999-08-31 2004-08-10 Adaptive rf amplifier prelimiter HK1063243B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/386,876 US6434135B1 (en) 1999-08-31 1999-08-31 Adaptive RF amplifier prelimiter
US386876 1999-08-31

Publications (2)

Publication Number Publication Date
HK1063243A1 true HK1063243A1 (en) 2004-12-17
HK1063243B HK1063243B (en) 2009-12-04

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Also Published As

Publication number Publication date
US20020093933A1 (en) 2002-07-18
EP1210768A1 (de) 2002-06-05
JP4551043B2 (ja) 2010-09-22
KR20020026593A (ko) 2002-04-10
US20020080763A1 (en) 2002-06-27
DE60005979D1 (de) 2003-11-20
DK1388937T3 (da) 2009-06-08
SG109974A1 (en) 2005-04-28
CN1287515C (zh) 2006-11-29
US6434135B1 (en) 2002-08-13
CA2451976A1 (en) 2001-03-08
US20020082052A1 (en) 2002-06-27
NO330149B1 (no) 2011-02-28
US20070211789A1 (en) 2007-09-13
US6904292B2 (en) 2005-06-07
IL148232A0 (en) 2002-09-12
ES2324906T3 (es) 2009-08-19
CN1371547A (zh) 2002-09-25
EP2045917B1 (de) 2013-04-17
EP2045917A3 (de) 2009-04-22
CA2564147C (en) 2008-09-30
HK1131267A1 (en) 2010-01-15
US6920127B2 (en) 2005-07-19
CA2382024C (en) 2004-04-06
AU6936200A (en) 2001-03-26
US20020080733A1 (en) 2002-06-27
US6968202B2 (en) 2005-11-22
CA2451976C (en) 2007-01-16
JP4750763B2 (ja) 2011-08-17
DK1210768T3 (da) 2004-02-16
EP1388937A3 (de) 2006-10-18
EP1210768B1 (de) 2003-10-15
KR100430458B1 (ko) 2004-05-12
CA2634485A1 (en) 2001-03-08
NO20020830L (no) 2002-02-20
DE60005979T2 (de) 2004-09-09
ATE252290T1 (de) 2003-11-15
NO20020830D0 (no) 2002-02-20
EP2045917A2 (de) 2009-04-08
DE60041836D1 (de) 2009-04-30
CA2382024A1 (en) 2001-03-08
EP1388937B1 (de) 2009-03-18
CA2564147A1 (en) 2001-03-08
HK1045609A1 (en) 2002-11-29
JP2007312430A (ja) 2007-11-29
EP1388937A2 (de) 2004-02-11
CA2634485C (en) 2014-07-15
JP2003527780A (ja) 2003-09-16
US7164931B2 (en) 2007-01-16
HK1045609B (en) 2004-03-05
DE1210768T1 (de) 2002-11-14
MXPA02001841A (es) 2002-10-23
WO2001017107A1 (en) 2001-03-08
ATE426267T1 (de) 2009-04-15
CN1956348A (zh) 2007-05-02
US7912505B2 (en) 2011-03-22
ES2206294T3 (es) 2004-05-16

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Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170823