IN2012DN00620A - - Google Patents

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Publication number
IN2012DN00620A
IN2012DN00620A IN620DEN2012A IN2012DN00620A IN 2012DN00620 A IN2012DN00620 A IN 2012DN00620A IN 620DEN2012 A IN620DEN2012 A IN 620DEN2012A IN 2012DN00620 A IN2012DN00620 A IN 2012DN00620A
Authority
IN
India
Prior art keywords
communication node
channel quality
quality report
channel
characteristic parameter
Prior art date
Application number
Inventor
Nils Brannstrom
Stephen Craig
Anders Jonsson
Kjell Larsson
Peter Okvist
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2012DN00620A publication Critical patent/IN2012DN00620A/en

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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
    • H04L1/0023—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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • 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

Landscapes

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

Abstract

The present invention relates to a method and an arrangement in a first communication node (115) for adjusting a channel quality report transmitted between the first communication node (1 15) and a second communication node (105). The first communication node (115) and the second communication node (105) are comprised in a wireless communication network (100), and are adapted to communicate with each other via a radio link (1 10). In a first step, a channel quality report is received (600) from the second communication node (105). The channel quality report is established by the second communication node (105). Then at least one channel characteristic parameter is obtained (601 ). The next step is to determine a channel quality offset based on the obtained channel characteristic parameter. Based on the channel quality offset, the channel quality report is adjusted (605).
IN620DEN2012 2009-07-01 2009-07-01 IN2012DN00620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/058244 WO2011000420A1 (en) 2009-07-01 2009-07-01 Adjusting channel quality report in a wireless communication network

Publications (1)

Publication Number Publication Date
IN2012DN00620A true IN2012DN00620A (en) 2015-06-12

Family

ID=42021647

Family Applications (1)

Application Number Title Priority Date Filing Date
IN620DEN2012 IN2012DN00620A (en) 2009-07-01 2009-07-01

Country Status (4)

Country Link
US (1) US9294220B2 (en)
EP (1) EP2449714B1 (en)
IN (1) IN2012DN00620A (en)
WO (1) WO2011000420A1 (en)

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* Cited by examiner, † Cited by third party
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US9204328B2 (en) * 2010-07-01 2015-12-01 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for determining a channel quality offset
CN102186230B (en) * 2011-05-12 2013-10-02 上海华为技术有限公司 Method and device for processing channel quality
WO2012167442A1 (en) * 2011-06-10 2012-12-13 华为技术有限公司 Method and device for modifying channel quality indicator value
US8681689B2 (en) * 2011-07-25 2014-03-25 Qualcomm Incorporated Adjusting a single-input and multiple-output (SIMO) channel quality indicator (CQI)
CN104968013A (en) * 2011-12-30 2015-10-07 华为技术有限公司 Method, equipment and system for adjusting feedback cycle of channel quality indicator (CQI)
GB2502107B (en) * 2012-05-16 2014-07-02 Broadcom Corp Channel quality estimation
WO2014040655A1 (en) * 2012-09-17 2014-03-20 Nokia Siemens Networks Oy Estimation and feedback of csi reliability information
DE102014204033A1 (en) * 2014-03-05 2015-09-10 Robert Bosch Gmbh Method for monitoring a communication network
GB2544518B (en) 2015-11-19 2020-02-12 Samsung Electronics Co Ltd Channel quality indicators
CN107182068A (en) * 2016-03-11 2017-09-19 索尼公司 Device for wireless communications and method, parameter optimization apparatus and method
EP3454490B1 (en) * 2016-05-31 2020-07-01 Huawei Technologies Co., Ltd. Method for determining supported data stream transmission rate and user equipment
WO2017211388A1 (en) * 2016-06-07 2017-12-14 Telefonaktiebolaget Lm Ericsson (Publ) Doppler shift or doppler spread as input for beam-switching or node-switching in wireless networks
US12317120B1 (en) 2020-12-01 2025-05-27 Sprint Spectrum Llc Use of backhaul packet-drop rate as basis to control transport block size for air-interface communication

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IL158986A0 (en) * 2001-05-31 2004-05-12 Magnolia Broadband Inc Communication device with smart antenna using a quality-indication signal
EP1428328A1 (en) * 2001-09-19 2004-06-16 Nokia Corporation Adaptive transceiver system
US7171229B2 (en) * 2001-10-31 2007-01-30 Koninklijke Philips Electronics N.V. Method for operating a radio communication system
JP3997890B2 (en) * 2001-11-13 2007-10-24 松下電器産業株式会社 Transmission method and transmission apparatus
JP3973506B2 (en) * 2002-07-19 2007-09-12 三洋電機株式会社 Wireless receiving apparatus, wireless receiving method, and wireless receiving program
US7406335B2 (en) * 2003-01-13 2008-07-29 Lucent Technologies Inc. Multiple antenna transmissions with deterministic phase differences
FI20040269A0 (en) * 2004-02-20 2004-02-20 Nokia Corp Data transmission method and system, base station and transmitter-receiver
KR100640516B1 (en) * 2004-02-27 2006-10-30 삼성전자주식회사 Method and device for transmitting channel quality information in orthogonal frequency division multiplexing communication system
US7599420B2 (en) * 2004-07-30 2009-10-06 Rearden, Llc System and method for distributed input distributed output wireless communications
JP4421935B2 (en) * 2004-04-30 2010-02-24 株式会社エヌ・ティ・ティ・ドコモ Radio base station apparatus and radio communication control method
JP4789450B2 (en) * 2004-11-04 2011-10-12 パナソニック株式会社 Line quality reporting method, base station apparatus and communication terminal
WO2006075208A1 (en) 2005-01-14 2006-07-20 Nokia Siemens Networks Oy Hsdpa parameters adjustment based on cqi age
US8416745B2 (en) * 2005-08-22 2013-04-09 Qualcomm Incorporated Open-loop power adjustment for CQI repointing based on RL quality indicators
US8271043B2 (en) * 2006-08-21 2012-09-18 Qualcomm Incorporated Approach to a unified SU-MIMO/MU-MIMO operation
US8121552B2 (en) * 2006-09-05 2012-02-21 Motorola Mobility, Inc. Method and apparatus for providing channel quality feedback in a wireless communication system
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JP2010528525A (en) 2007-05-24 2010-08-19 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Method and apparatus for reporting channel quality
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US9209933B2 (en) * 2009-06-11 2015-12-08 Qualcomm Incorporated Method and apparatus for dispatching a channel quality indicator feedback in multicarrier system

Also Published As

Publication number Publication date
US20120099471A1 (en) 2012-04-26
US9294220B2 (en) 2016-03-22
EP2449714A1 (en) 2012-05-09
EP2449714B1 (en) 2013-03-06
WO2011000420A1 (en) 2011-01-06

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