WO1998038807A3 - Method and apparatus for analyzing a composite carrier signal - Google Patents

Method and apparatus for analyzing a composite carrier signal Download PDF

Info

Publication number
WO1998038807A3
WO1998038807A3 PCT/US1998/000900 US9800900W WO9838807A3 WO 1998038807 A3 WO1998038807 A3 WO 1998038807A3 US 9800900 W US9800900 W US 9800900W WO 9838807 A3 WO9838807 A3 WO 9838807A3
Authority
WO
WIPO (PCT)
Prior art keywords
coding
carrier signal
composite carrier
communication system
peak
Prior art date
Application number
PCT/US1998/000900
Other languages
French (fr)
Other versions
WO1998038807A2 (en
Inventor
Michael D Kotzin
Joseph Schuler
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Priority to DE69835948T priority Critical patent/DE69835948T2/en
Priority to CA002281542A priority patent/CA2281542C/en
Priority to JP53763798A priority patent/JP4024311B2/en
Priority to EP98903536A priority patent/EP0963643B1/en
Publication of WO1998038807A2 publication Critical patent/WO1998038807A2/en
Publication of WO1998038807A3 publication Critical patent/WO1998038807A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set

Abstract

A communication system (106) receives and codes a plurality of information signals (102-105) according to coding assignments to produce a plurality of coded baseband signals (202-205). From these signals, a simulated composite carrier signal is formed which has all the characteristics of an actual composite carrier signal which would have resulted if the plurality of coded baseband signals had been formed. The simulated composite carrier signal is analyzed to determine its peak-to-average ratio. The communication system (106) selects a different coding assignment for coding the plurality of information signals if, based on the determined peak-to-average ratio and a selection criteria, the coding assignment does not produce the desired results. The communication system (106) selects a different coding assignment until at least one or several desired coding techniques have been identified, ranks the coding techniques and makes a final selection of the coding techniques to meet the peak-to-average ratio requirements.
PCT/US1998/000900 1997-02-26 1998-01-20 Method and apparatus for analyzing a composite carrier signal WO1998038807A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69835948T DE69835948T2 (en) 1997-02-26 1998-01-20 METHOD AND DEVICE FOR TRANSMITTING COMPOSITE SIGNAL SIGNALS
CA002281542A CA2281542C (en) 1997-02-26 1998-01-20 Method and apparatus for analyzing a composite carrier signal
JP53763798A JP4024311B2 (en) 1997-02-26 1998-01-20 Method and apparatus for analyzing composite carrier signal
EP98903536A EP0963643B1 (en) 1997-02-26 1998-01-20 Method and apparatus for transmitting a composite carrier signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/805,818 US5894498A (en) 1997-02-26 1997-02-26 Method and apparatus for analyzing a composite carrier signal
US08/805,818 1997-02-26

Publications (2)

Publication Number Publication Date
WO1998038807A2 WO1998038807A2 (en) 1998-09-03
WO1998038807A3 true WO1998038807A3 (en) 1998-12-03

Family

ID=25192587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/000900 WO1998038807A2 (en) 1997-02-26 1998-01-20 Method and apparatus for analyzing a composite carrier signal

Country Status (8)

Country Link
US (1) US5894498A (en)
EP (1) EP0963643B1 (en)
JP (1) JP4024311B2 (en)
KR (1) KR100313413B1 (en)
CN (1) CN1217519C (en)
CA (1) CA2281542C (en)
DE (1) DE69835948T2 (en)
WO (1) WO1998038807A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339514A (en) * 1998-07-11 2000-01-26 Motorola Ltd Cellular communication system with reduced power variation
US6570929B1 (en) * 1999-07-08 2003-05-27 Telefonaktiebolaget Lm Ericsson (Publ) Power control scheme for maximizing carrier signal-to-noise ratio in multicarrier transmitters
WO2001005057A1 (en) 1999-07-08 2001-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for mcpa-equipped base stations
US6694148B1 (en) 1999-07-26 2004-02-17 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for MCPA-equipped based stations
WO2001018987A1 (en) * 1999-09-07 2001-03-15 Ericsson Inc Wireless communications apparatus and methods using intelligent modulation code assignment
AU2001278971A1 (en) * 2000-07-21 2002-02-05 Pmc-Sierra, Ltd. Systems and methods for reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms
CA2432803A1 (en) * 2000-09-29 2002-04-04 Varitek Industries, Inc. Telematics system
FI115935B (en) 2003-02-25 2005-08-15 Nokia Corp Method and apparatus for regulating amplifier characteristics
US7330122B2 (en) 2005-08-10 2008-02-12 Remotemdx, Inc. Remote tracking and communication device
US8797210B2 (en) 2006-07-14 2014-08-05 Securealert, Inc. Remote tracking device and a system and method for two-way voice communication between the device and a monitoring center
US7737841B2 (en) 2006-07-14 2010-06-15 Remotemdx Alarm and alarm management system for remote tracking devices
US7936262B2 (en) 2006-07-14 2011-05-03 Securealert, Inc. Remote tracking system with a dedicated monitoring center
US7848446B2 (en) * 2006-09-27 2010-12-07 Telefonaktiebolaget L M Ericsson (Publ) Reduction of peak-to-average-power ratio in a telecommunications system
US8232876B2 (en) 2008-03-07 2012-07-31 Securealert, Inc. System and method for monitoring individuals using a beacon and intelligent remote tracking device
US8514070B2 (en) 2010-04-07 2013-08-20 Securealert, Inc. Tracking device incorporating enhanced security mounting strap

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5134464A (en) * 1990-11-16 1992-07-28 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier digital television signal
US5243629A (en) * 1991-09-03 1993-09-07 At&T Bell Laboratories Multi-subcarrier modulation for hdtv transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890283A (en) * 1987-11-19 1989-12-26 North American Philips Corporation High definition television augmentation channel
US5201071A (en) * 1990-09-26 1993-04-06 Rockwell International Corporation Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power
US5315583A (en) * 1991-04-11 1994-05-24 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
IT1259012B (en) * 1992-07-27 1996-03-11 Alcatel Italia METHOD AND CIRCUITS FOR REDUCING THE PEAK POWER OF THE FILTERED SIGNAL TRANSMITTED IN A NUMERIC TYPE CONNECTION
US5838732A (en) * 1994-10-31 1998-11-17 Airnet Communications Corp. Reducing peak-to-average variance of a composite transmitted signal generated by a digital combiner via carrier phase offset

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5134464A (en) * 1990-11-16 1992-07-28 North American Philips Corporation Method and apparatus for the transmission and reception of a multicarrier digital television signal
US5243629A (en) * 1991-09-03 1993-09-07 At&T Bell Laboratories Multi-subcarrier modulation for hdtv transmission

Also Published As

Publication number Publication date
EP0963643A4 (en) 2003-02-12
CA2281542A1 (en) 1998-09-03
KR20000075676A (en) 2000-12-26
CA2281542C (en) 2003-07-08
JP4024311B2 (en) 2007-12-19
WO1998038807A2 (en) 1998-09-03
US5894498A (en) 1999-04-13
EP0963643B1 (en) 2006-09-20
DE69835948T2 (en) 2007-04-26
CN1248371A (en) 2000-03-22
EP0963643A2 (en) 1999-12-15
JP2001513957A (en) 2001-09-04
DE69835948D1 (en) 2006-11-02
KR100313413B1 (en) 2001-11-07
CN1217519C (en) 2005-08-31

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