GB0502378D0 - Method and apparatus for recovering timing in packet based wireless networks - Google Patents

Method and apparatus for recovering timing in packet based wireless networks

Info

Publication number
GB0502378D0
GB0502378D0 GBGB0502378.3A GB0502378A GB0502378D0 GB 0502378 D0 GB0502378 D0 GB 0502378D0 GB 0502378 A GB0502378 A GB 0502378A GB 0502378 D0 GB0502378 D0 GB 0502378D0
Authority
GB
United Kingdom
Prior art keywords
wireless networks
packet based
based wireless
recovering timing
recovering
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.)
Granted
Application number
GBGB0502378.3A
Other versions
GB2409612A (en
GB2409612B (en
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.)
Toshiba Europe Ltd
Original Assignee
Toshiba Research Europe Ltd
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 Toshiba Research Europe Ltd filed Critical Toshiba Research Europe Ltd
Publication of GB0502378D0 publication Critical patent/GB0502378D0/en
Publication of GB2409612A publication Critical patent/GB2409612A/en
Application granted granted Critical
Publication of GB2409612B publication Critical patent/GB2409612B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2075—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the change in carrier phase
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
GB0502378A 2003-12-22 2003-12-22 Method and apparatus for recovering timing in packet based wireless networks Expired - Fee Related GB2409612B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0329685A GB2409604B (en) 2003-12-22 2003-12-22 Method and apparatus for recovering timing in packet based wireless network.

Publications (3)

Publication Number Publication Date
GB0502378D0 true GB0502378D0 (en) 2005-03-16
GB2409612A GB2409612A (en) 2005-06-29
GB2409612B GB2409612B (en) 2006-08-23

Family

ID=30776266

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0329685A Expired - Fee Related GB2409604B (en) 2003-12-22 2003-12-22 Method and apparatus for recovering timing in packet based wireless network.
GB0502378A Expired - Fee Related GB2409612B (en) 2003-12-22 2003-12-22 Method and apparatus for recovering timing in packet based wireless networks

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0329685A Expired - Fee Related GB2409604B (en) 2003-12-22 2003-12-22 Method and apparatus for recovering timing in packet based wireless network.

Country Status (1)

Country Link
GB (2) GB2409604B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2045338C (en) * 1990-06-26 1995-07-04 Shousei Yoshida Clock recovery circuit with open-loop phase estimator and wideband phase tracking loop
US5687198A (en) * 1996-01-04 1997-11-11 Motorola, Inc. Channel estimation in a communication system

Also Published As

Publication number Publication date
GB2409604B (en) 2006-02-08
GB2409604A (en) 2005-06-29
GB0329685D0 (en) 2004-01-28
GB2409612A (en) 2005-06-29
GB2409612B (en) 2006-08-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20141222