GB2386307B - Multicarrier communications systems - Google Patents

Multicarrier communications systems

Info

Publication number
GB2386307B
GB2386307B GB0313896A GB0313896A GB2386307B GB 2386307 B GB2386307 B GB 2386307B GB 0313896 A GB0313896 A GB 0313896A GB 0313896 A GB0313896 A GB 0313896A GB 2386307 B GB2386307 B GB 2386307B
Authority
GB
United Kingdom
Prior art keywords
communications systems
multicarrier communications
multicarrier
systems
communications
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
GB0313896A
Other versions
GB0313896D0 (en
GB2386307A (en
Inventor
Wieslaw Jerzy Szajnowski
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.)
Mitsubishi Electric Information Technology Corp
Original Assignee
Mitsubishi Electric Information Technology Corp
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
Priority claimed from GBGB9823812.4A external-priority patent/GB9823812D0/en
Application filed by Mitsubishi Electric Information Technology Corp filed Critical Mitsubishi Electric Information Technology Corp
Publication of GB0313896D0 publication Critical patent/GB0313896D0/en
Publication of GB2386307A publication Critical patent/GB2386307A/en
Application granted granted Critical
Publication of GB2386307B publication Critical patent/GB2386307B/en
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
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H04L27/2659—Coarse or integer frequency offset determination and synchronisation
    • 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
    • H04L2027/0055—Closed loops single phase
    • 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
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0091—Continuous signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
GB0313896A 1998-10-30 1999-10-26 Multicarrier communications systems Expired - Lifetime GB2386307B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9823812.4A GB9823812D0 (en) 1998-10-30 1998-10-30 Multicarrier communications systems
GB9925326A GB2343311B (en) 1998-10-30 1999-10-26 Multicarrier communications systems

Publications (3)

Publication Number Publication Date
GB0313896D0 GB0313896D0 (en) 2003-07-23
GB2386307A GB2386307A (en) 2003-09-10
GB2386307B true GB2386307B (en) 2003-11-05

Family

ID=27758867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0313896A Expired - Lifetime GB2386307B (en) 1998-10-30 1999-10-26 Multicarrier communications systems

Country Status (1)

Country Link
GB (1) GB2386307B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246440A (en) * 1977-09-01 1981-01-20 U.S. Philips Corporation Radio broadcasting system with code signalling
US4252995A (en) * 1977-02-25 1981-02-24 U.S. Philips Corporation Radio broadcasting system with transmitter identification
US4493099A (en) * 1981-01-29 1985-01-08 U.S. Philips Corporation FM Broadcasting system with transmitter identification

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4252995A (en) * 1977-02-25 1981-02-24 U.S. Philips Corporation Radio broadcasting system with transmitter identification
US4246440A (en) * 1977-09-01 1981-01-20 U.S. Philips Corporation Radio broadcasting system with code signalling
US4493099A (en) * 1981-01-29 1985-01-08 U.S. Philips Corporation FM Broadcasting system with transmitter identification

Also Published As

Publication number Publication date
GB0313896D0 (en) 2003-07-23
GB2386307A (en) 2003-09-10

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20130510

PE20 Patent expired after termination of 20 years

Expiry date: 20191025