DE69532722D1 - Zweiwegfunksystem mit synchronisierter frequenz - Google Patents

Zweiwegfunksystem mit synchronisierter frequenz

Info

Publication number
DE69532722D1
DE69532722D1 DE69532722T DE69532722T DE69532722D1 DE 69532722 D1 DE69532722 D1 DE 69532722D1 DE 69532722 T DE69532722 T DE 69532722T DE 69532722 T DE69532722 T DE 69532722T DE 69532722 D1 DE69532722 D1 DE 69532722D1
Authority
DE
Germany
Prior art keywords
radio system
way radio
synchronized frequency
synchronized
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69532722T
Other languages
English (en)
Other versions
DE69532722T2 (de
Inventor
F Fulton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atos Origin IT Services Inc
Original Assignee
Atos Origin IT Services 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 Atos Origin IT Services Inc filed Critical Atos Origin IT Services Inc
Application granted granted Critical
Publication of DE69532722D1 publication Critical patent/DE69532722D1/de
Publication of DE69532722T2 publication Critical patent/DE69532722T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • 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
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2675—Frequency synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
    • H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • 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
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/408—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency the transmitter oscillator frequency being identical to the receiver local oscillator frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
DE69532722T 1994-12-21 1995-12-21 Zweiwegfunksystem mit synchronisierter frequenz Expired - Lifetime DE69532722T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US361799 1994-12-21
US08/361,799 US5604768A (en) 1992-01-09 1994-12-21 Frequency synchronized bidirectional radio system
PCT/US1995/016682 WO1996019875A1 (en) 1994-12-21 1995-12-21 Frequency synchronized bidirectional radio system

Publications (2)

Publication Number Publication Date
DE69532722D1 true DE69532722D1 (de) 2004-04-22
DE69532722T2 DE69532722T2 (de) 2005-02-10

Family

ID=23423492

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69532722T Expired - Lifetime DE69532722T2 (de) 1994-12-21 1995-12-21 Zweiwegfunksystem mit synchronisierter frequenz

Country Status (7)

Country Link
US (1) US5604768A (de)
EP (1) EP0804833B1 (de)
JP (1) JPH10511516A (de)
CA (1) CA2208460C (de)
DE (1) DE69532722T2 (de)
NZ (2) NZ301446A (de)
WO (1) WO1996019875A1 (de)

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US9354083B2 (en) * 2006-09-15 2016-05-31 Itron, Inc. Home area networking (HAN) with low power considerations for battery devices
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US8942222B2 (en) * 2007-01-29 2015-01-27 Alcatel Lucent Frequency synchronization in wireless communication systems
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US7920462B2 (en) * 2007-10-01 2011-04-05 Infineon Technologies Ag Amplitude attenuation estimation and recovery systems for OFDM signal used in communication systems
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Also Published As

Publication number Publication date
WO1996019875A1 (en) 1996-06-27
CA2208460A1 (en) 1996-06-27
JPH10511516A (ja) 1998-11-04
EP0804833B1 (de) 2004-03-17
NZ301446A (en) 1999-10-28
US5604768A (en) 1997-02-18
EP0804833A1 (de) 1997-11-05
DE69532722T2 (de) 2005-02-10
CA2208460C (en) 2004-11-02
AU692058B2 (en) 1998-05-28
AU4687396A (en) 1996-07-10
EP0804833A4 (de) 2001-07-11
MX9704596A (es) 1998-07-31
NZ337741A (en) 2001-02-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition