GB0423995D0 - Communications systems - Google Patents

Communications systems

Info

Publication number
GB0423995D0
GB0423995D0 GB0423995A GB0423995A GB0423995D0 GB 0423995 D0 GB0423995 D0 GB 0423995D0 GB 0423995 A GB0423995 A GB 0423995A GB 0423995 A GB0423995 A GB 0423995A GB 0423995 D0 GB0423995 D0 GB 0423995D0
Authority
GB
United Kingdom
Prior art keywords
communications systems
communications
systems
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.)
Withdrawn
Application number
GB0423995A
Other versions
GB2407951A (en
GB2407951A8 (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.)
Sepura Ltd
Original Assignee
Sepura 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
Priority claimed from GB0325169A external-priority patent/GB0325169D0/en
Application filed by Sepura Ltd filed Critical Sepura Ltd
Publication of GB0423995D0 publication Critical patent/GB0423995D0/en
Publication of GB2407951A publication Critical patent/GB2407951A/en
Publication of GB2407951A8 publication Critical patent/GB2407951A8/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB0423995A 2003-10-28 2004-10-28 Blind modulation scheme detection using training sequences Withdrawn GB2407951A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0325169A GB0325169D0 (en) 2003-10-28 2003-10-28 Communications systems
GB0328270A GB0328270D0 (en) 2003-10-28 2003-12-05 Communications systems

Publications (3)

Publication Number Publication Date
GB0423995D0 true GB0423995D0 (en) 2004-12-01
GB2407951A GB2407951A (en) 2005-05-11
GB2407951A8 GB2407951A8 (en) 2005-10-12

Family

ID=33518440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0423995A Withdrawn GB2407951A (en) 2003-10-28 2004-10-28 Blind modulation scheme detection using training sequences

Country Status (2)

Country Link
GB (1) GB2407951A (en)
WO (1) WO2005048551A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8331488B2 (en) 2009-10-13 2012-12-11 Qualcomm Incorporated Methods and apparatus for communicating information using non-coherent and coherent modulation
US8325697B2 (en) 2009-10-13 2012-12-04 Qualcomm Incorporated Methods and apparatus for selecting and transmitting pilots
US9450797B2 (en) 2013-02-12 2016-09-20 Sepura Plc Mobile communications system
GB201302414D0 (en) 2013-02-12 2013-03-27 Sepura Ltd Mobile communication system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289476A (en) * 1991-05-10 1994-02-22 Echelon Corporation Transmission mode detection in a modulated communication system
US6473506B1 (en) * 1998-10-13 2002-10-29 Telefonaktiebolaget Lm Ericsson (Publ) Signaling using phase rotation techniques in a digital communications system
GB2350527A (en) * 1999-03-23 2000-11-29 Marconi Electronic Syst Ltd Modulation identification
US6463107B1 (en) * 1999-07-01 2002-10-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for synchronization and modulation type detection
FI110825B (en) * 1999-08-10 2003-03-31 Nokia Corp A method for selecting a modulation detector at a receiver and a receiver
US6400928B1 (en) * 1999-11-19 2002-06-04 Telefonaktiebolaget L M Ericsson (Publ) Method and system for blind detection of modulation
EP1243112A1 (en) * 1999-12-30 2002-09-25 Nokia Corporation Method for blind modulation detection
IT1318053B1 (en) * 2000-06-27 2003-07-21 Siemens Inf & Comm Networks TRANSMISSION METHOD IN ADAPTIVE MODULATION SYSTEMS
EP1273145A1 (en) * 2001-03-13 2003-01-08 Matsushita Electric Industrial Co., Ltd. Method and system for blind detection of modulation type
SE521246C2 (en) * 2001-06-12 2003-10-14 Ericsson Telefon Ab L M blind Detection
GB0116017D0 (en) * 2001-06-29 2001-08-22 Simoco Digital Systems Ltd Communications systems

Also Published As

Publication number Publication date
GB2407951A (en) 2005-05-11
WO2005048551A1 (en) 2005-05-26
GB2407951A8 (en) 2005-10-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)