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WO2004084452A3 - Method and apparatus for link adaptation - Google Patents

Method and apparatus for link adaptation Download PDF

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Publication number
WO2004084452A3
WO2004084452A3 PCT/EP2004/002651 EP2004002651W WO2004084452A3 WO 2004084452 A3 WO2004084452 A3 WO 2004084452A3 EP 2004002651 W EP2004002651 W EP 2004002651W WO 2004084452 A3 WO2004084452 A3 WO 2004084452A3
Authority
WO
WIPO (PCT)
Prior art keywords
link quality
link
reporting interval
quality measure
physical layer
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.)
Ceased
Application number
PCT/EP2004/002651
Other languages
French (fr)
Other versions
WO2004084452A2 (en
Inventor
Peter Malm
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 EP03006418A external-priority patent/EP1460789B1/en
Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Priority to US10/549,694 priority Critical patent/US20070026803A1/en
Publication of WO2004084452A2 publication Critical patent/WO2004084452A2/en
Anticipated expiration legal-status Critical
Publication of WO2004084452A3 publication Critical patent/WO2004084452A3/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • 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
    • 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
    • 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
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and apparatus for providing a link quality report in a wireless communication system supporting link adaptation. An input signal carrying data blocks in one or several transmission intervals of a reporting interval is received by a receiver (30) of the apparatus. A quality measurement unit (31) provides a link quality measure of the current reporting interval. A correction unit (32) corrects the link quality measure by determining a SIR loss of the link, which is induced by unmatched transmission parameter settings of a physical layer. Then, a link quality report for the current reporting interval is based on the corrected link quality measure and transmitted by the transmitter (34) to the transmitting unit, which will adapt the setting of physical layer parameters accordingly.
PCT/EP2004/002651 2003-03-21 2004-03-15 Method and apparatus for link adaptation Ceased WO2004084452A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/549,694 US20070026803A1 (en) 2003-03-21 2004-03-15 Method and apparatus for link adaptation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP03006418A EP1460789B1 (en) 2003-03-21 2003-03-21 Method and apparatus for link adaptation
EP03006418.2 2003-03-21
US45755603P 2003-03-26 2003-03-26
US60/457,556 2003-03-26

Publications (2)

Publication Number Publication Date
WO2004084452A2 WO2004084452A2 (en) 2004-09-30
WO2004084452A3 true WO2004084452A3 (en) 2008-01-17

Family

ID=33031245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/002651 Ceased WO2004084452A2 (en) 2003-03-21 2004-03-15 Method and apparatus for link adaptation

Country Status (1)

Country Link
WO (1) WO2004084452A2 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8694042B2 (en) 2005-10-14 2014-04-08 Qualcomm Incorporated Method and apparatus for determining a base station's transmission power budget
US8830827B2 (en) 2005-12-22 2014-09-09 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US8965413B2 (en) 2006-04-12 2015-02-24 Qualcomm Incorporated Locating a wireless local area network associated with a wireless wide area network
US9119220B2 (en) 2005-12-22 2015-08-25 Qualcomm Incorporated Methods and apparatus for communicating backlog related information
US9125093B2 (en) 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus related to custom control channel reporting formats
US9125092B2 (en) 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus for reporting and/or using control information
US9137072B2 (en) 2005-12-22 2015-09-15 Qualcomm Incorporated Methods and apparatus for communicating control information
US9148795B2 (en) 2005-12-22 2015-09-29 Qualcomm Incorporated Methods and apparatus for flexible reporting of control information
US9161313B2 (en) 2005-12-22 2015-10-13 Qualcomm Incorporated Methods and apparatus for communicating and/or using transmission power information
US9191840B2 (en) 2005-10-14 2015-11-17 Qualcomm Incorporated Methods and apparatus for determining, communicating and using information which can be used for interference control
US9338767B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus of implementing and/or using a dedicated control channel
US9338795B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US9451491B2 (en) 2005-12-22 2016-09-20 Qualcomm Incorporated Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system
US9462604B2 (en) 2005-12-22 2016-10-04 Qualcomm Incorporated Methods and apparatus related to selecting a request group for a request report
US9473265B2 (en) 2005-12-22 2016-10-18 Qualcomm Incorporated Methods and apparatus for communicating information utilizing a plurality of dictionaries
US9544860B2 (en) 2003-02-24 2017-01-10 Qualcomm Incorporated Pilot signals for use in multi-sector cells
US9603102B2 (en) 2003-02-24 2017-03-21 Qualcomm Incorporated Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9661519B2 (en) 2003-02-24 2017-05-23 Qualcomm Incorporated Efficient reporting of information in a wireless communication system
JP4457867B2 (en) * 2004-11-25 2010-04-28 富士通株式会社 Wireless communication device, mobile station
US20070149132A1 (en) 2005-12-22 2007-06-28 Junyl Li Methods and apparatus related to selecting control channel reporting formats
WO2008004052A2 (en) * 2006-06-30 2008-01-10 Nokia Corporation Multi-level control for handling measurement reports

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890845A2 (en) * 1997-07-11 1999-01-13 Nec Corporation S/N measuring circuit and method
US6292519B1 (en) * 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements
US20020110088A1 (en) * 2001-02-15 2002-08-15 Lundby Stein A. Method and apparatus for link quality feedback in a wireless communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890845A2 (en) * 1997-07-11 1999-01-13 Nec Corporation S/N measuring circuit and method
US6292519B1 (en) * 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements
US20020110088A1 (en) * 2001-02-15 2002-08-15 Lundby Stein A. Method and apparatus for link quality feedback in a wireless communication system

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9603102B2 (en) 2003-02-24 2017-03-21 Qualcomm Incorporated Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators
US9544860B2 (en) 2003-02-24 2017-01-10 Qualcomm Incorporated Pilot signals for use in multi-sector cells
US8694042B2 (en) 2005-10-14 2014-04-08 Qualcomm Incorporated Method and apparatus for determining a base station's transmission power budget
US8989084B2 (en) 2005-10-14 2015-03-24 Qualcomm Incorporated Methods and apparatus for broadcasting loading information corresponding to neighboring base stations
US9191840B2 (en) 2005-10-14 2015-11-17 Qualcomm Incorporated Methods and apparatus for determining, communicating and using information which can be used for interference control
US9125093B2 (en) 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus related to custom control channel reporting formats
US9338795B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US9137072B2 (en) 2005-12-22 2015-09-15 Qualcomm Incorporated Methods and apparatus for communicating control information
US9148795B2 (en) 2005-12-22 2015-09-29 Qualcomm Incorporated Methods and apparatus for flexible reporting of control information
US9161313B2 (en) 2005-12-22 2015-10-13 Qualcomm Incorporated Methods and apparatus for communicating and/or using transmission power information
US9119220B2 (en) 2005-12-22 2015-08-25 Qualcomm Incorporated Methods and apparatus for communicating backlog related information
US9338767B2 (en) 2005-12-22 2016-05-10 Qualcomm Incorporated Methods and apparatus of implementing and/or using a dedicated control channel
US9125092B2 (en) 2005-12-22 2015-09-01 Qualcomm Incorporated Methods and apparatus for reporting and/or using control information
US9451491B2 (en) 2005-12-22 2016-09-20 Qualcomm Incorporated Methods and apparatus relating to generating and transmitting initial and additional control information report sets in a wireless system
US9462604B2 (en) 2005-12-22 2016-10-04 Qualcomm Incorporated Methods and apparatus related to selecting a request group for a request report
US9473265B2 (en) 2005-12-22 2016-10-18 Qualcomm Incorporated Methods and apparatus for communicating information utilizing a plurality of dictionaries
US8830827B2 (en) 2005-12-22 2014-09-09 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US9572179B2 (en) 2005-12-22 2017-02-14 Qualcomm Incorporated Methods and apparatus for communicating transmission backlog information
US9578654B2 (en) 2005-12-22 2017-02-21 Qualcomm Incorporated Methods and apparatus related to selecting reporting alternative in a request report
US8965413B2 (en) 2006-04-12 2015-02-24 Qualcomm Incorporated Locating a wireless local area network associated with a wireless wide area network

Also Published As

Publication number Publication date
WO2004084452A2 (en) 2004-09-30

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