CA2454481C - Method for determining whether to perform link adaptation in wcdma communications - Google Patents

Method for determining whether to perform link adaptation in wcdma communications Download PDF

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Publication number
CA2454481C
CA2454481C CA2454481A CA2454481A CA2454481C CA 2454481 C CA2454481 C CA 2454481C CA 2454481 A CA2454481 A CA 2454481A CA 2454481 A CA2454481 A CA 2454481A CA 2454481 C CA2454481 C CA 2454481C
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Canada
Prior art keywords
signal
interference ratio
indication
quality
link adaptation
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
CA2454481A
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English (en)
French (fr)
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CA2454481A1 (en
Inventor
Seppo Hamalainen
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Nokia Technologies Oy
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Nokia Inc
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Publication date
Application filed by Nokia Inc filed Critical Nokia Inc
Publication of CA2454481A1 publication Critical patent/CA2454481A1/en
Application granted granted Critical
Publication of CA2454481C publication Critical patent/CA2454481C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • 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
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H04L1/0034—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter where the transmitter decides based on inferences, e.g. use of implicit signalling
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/12—Outer and inner loops
    • H04W52/125—Outer and inner loops cascaded outer loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR or Eb/lo

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
CA2454481A 2001-07-24 2002-07-19 Method for determining whether to perform link adaptation in wcdma communications Expired - Lifetime CA2454481C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/912,227 US7027420B2 (en) 2001-07-24 2001-07-24 Method for determining whether to perform link adaptation in WCDMA communications
US09/912,227 2001-07-24
PCT/IB2002/002839 WO2003010979A2 (en) 2001-07-24 2002-07-19 Method for determining whether to perform link adaptation in wcdma communications

Publications (2)

Publication Number Publication Date
CA2454481A1 CA2454481A1 (en) 2003-02-06
CA2454481C true CA2454481C (en) 2013-05-21

Family

ID=25431560

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2454481A Expired - Lifetime CA2454481C (en) 2001-07-24 2002-07-19 Method for determining whether to perform link adaptation in wcdma communications

Country Status (12)

Country Link
US (2) US7027420B2 (https=)
EP (1) EP1410653B1 (https=)
JP (1) JP4598391B2 (https=)
KR (1) KR100750374B1 (https=)
CN (1) CN1555657B (https=)
AT (1) ATE493859T1 (https=)
AU (1) AU2002355307A1 (https=)
BR (2) BRPI0211394B1 (https=)
CA (1) CA2454481C (https=)
DE (1) DE60238770D1 (https=)
WO (1) WO2003010979A2 (https=)
ZA (1) ZA200400420B (https=)

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Also Published As

Publication number Publication date
US20060256732A1 (en) 2006-11-16
KR20040017335A (ko) 2004-02-26
CN1555657A (zh) 2004-12-15
US20030021243A1 (en) 2003-01-30
ZA200400420B (en) 2006-06-28
BR0211394A (pt) 2004-08-17
DE60238770D1 (de) 2011-02-10
AU2002355307A1 (en) 2003-02-17
KR100750374B1 (ko) 2007-08-17
JP4598391B2 (ja) 2010-12-15
US7664047B2 (en) 2010-02-16
JP2004537228A (ja) 2004-12-09
EP1410653A4 (en) 2007-06-27
EP1410653B1 (en) 2010-12-29
WO2003010979A3 (en) 2003-06-05
WO2003010979A2 (en) 2003-02-06
CN1555657B (zh) 2012-04-04
US7027420B2 (en) 2006-04-11
EP1410653A2 (en) 2004-04-21
ATE493859T1 (de) 2011-01-15
BRPI0211394B1 (pt) 2019-04-02
CA2454481A1 (en) 2003-02-06

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