DE60027449D1 - Adaptives modulationssystem und -verfahren für tdma-systeme - Google Patents

Adaptives modulationssystem und -verfahren für tdma-systeme

Info

Publication number
DE60027449D1
DE60027449D1 DE60027449T DE60027449T DE60027449D1 DE 60027449 D1 DE60027449 D1 DE 60027449D1 DE 60027449 T DE60027449 T DE 60027449T DE 60027449 T DE60027449 T DE 60027449T DE 60027449 D1 DE60027449 D1 DE 60027449D1
Authority
DE
Germany
Prior art keywords
information density
data stream
preferred
modulation system
adaptive modulation
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
DE60027449T
Other languages
English (en)
Other versions
DE60027449T2 (de
Inventor
C Schafer
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.)
Harris Broadband Wireless Access Inc
Original Assignee
Harris Broadband Wireless Access 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 Harris Broadband Wireless Access Inc filed Critical Harris Broadband Wireless Access Inc
Application granted granted Critical
Publication of DE60027449D1 publication Critical patent/DE60027449D1/de
Publication of DE60027449T2 publication Critical patent/DE60027449T2/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
    • H04L27/0008—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
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
DE60027449T 1999-06-07 2000-05-30 Adaptives modulationssystem und -verfahren für tdma-systeme Expired - Lifetime DE60027449T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US327787 1999-06-07
US09/327,787 US6404755B1 (en) 1996-11-07 1999-06-07 Multi-level information mapping system and method
PCT/US2000/014796 WO2000076114A1 (en) 1999-06-07 2000-05-30 Adaptive modulation system and method for tdma

Publications (2)

Publication Number Publication Date
DE60027449D1 true DE60027449D1 (de) 2006-05-24
DE60027449T2 DE60027449T2 (de) 2007-03-29

Family

ID=23278065

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60027449T Expired - Lifetime DE60027449T2 (de) 1999-06-07 2000-05-30 Adaptives modulationssystem und -verfahren für tdma-systeme

Country Status (6)

Country Link
US (1) US6404755B1 (de)
EP (1) EP1222764B1 (de)
AT (1) ATE323986T1 (de)
AU (1) AU5448800A (de)
DE (1) DE60027449T2 (de)
WO (1) WO2000076114A1 (de)

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Also Published As

Publication number Publication date
ATE323986T1 (de) 2006-05-15
DE60027449T2 (de) 2007-03-29
US6404755B1 (en) 2002-06-11
WO2000076114A1 (en) 2000-12-14
AU5448800A (en) 2000-12-28
EP1222764B1 (de) 2006-04-19
EP1222764A1 (de) 2002-07-17

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