IN2012CN02579A - - Google Patents

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Publication number
IN2012CN02579A
IN2012CN02579A IN2579CHN2012A IN2012CN02579A IN 2012CN02579 A IN2012CN02579 A IN 2012CN02579A IN 2579CHN2012 A IN2579CHN2012 A IN 2579CHN2012A IN 2012CN02579 A IN2012CN02579 A IN 2012CN02579A
Authority
IN
India
Prior art keywords
cqi
pdsch
unit
selectable
block size
Prior art date
Application number
Inventor
Naoto Okubo
Hiroyuki Ishii
Sadayuki Abeta
Original Assignee
Ntt Docomo 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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of IN2012CN02579A publication Critical patent/IN2012CN02579A/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
    • H04L1/0002—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
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
    • 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
    • H04L1/0023—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
    • H04L1/12—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
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • 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
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • H04W88/08—Access point devices

Landscapes

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

Abstract

A radio base station eNB according to the present invention includes: a CQI reception unit 11 configured to receive CQI in PDSCH from a mobile station UE; a CQI adjustment unit 13 configured to adjust the received CQI based on a transmission acknowledgement result for a downlink data signal transmitted via the PDSCH; a selectable TF number calculation unit 22 configured to calculate a selectable maximum transport block size based on the number of mobile stations UE in each scheduling unit period; and an MCS selection unit 15 configured to select a modulation scheme and a coding rate, which are to be applied to each resource blocks in the PDSCH, based on the adjusted CQI and a transmission format corresponding to the calculated selectable maximum transport block size.
IN2579CHN2012 2009-09-15 2010-09-13 IN2012CN02579A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009213668A JP5031009B2 (en) 2009-09-15 2009-09-15 Radio base station and mobile communication method
PCT/JP2010/065724 WO2011034021A1 (en) 2009-09-15 2010-09-13 Radio base station and mobile communication method

Publications (1)

Publication Number Publication Date
IN2012CN02579A true IN2012CN02579A (en) 2015-08-21

Family

ID=43758625

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2579CHN2012 IN2012CN02579A (en) 2009-09-15 2010-09-13

Country Status (6)

Country Link
US (1) US8743728B2 (en)
EP (1) EP2480023A4 (en)
JP (1) JP5031009B2 (en)
CN (1) CN102598768B (en)
IN (1) IN2012CN02579A (en)
WO (1) WO2011034021A1 (en)

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CN102265543B (en) * 2011-06-10 2014-03-12 华为技术有限公司 Method and device for correcting channel quality indicator value
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WO2014146280A1 (en) * 2013-03-21 2014-09-25 华为终端有限公司 Data transmission method, base station, and user equipment
US20150139000A1 (en) * 2013-11-18 2015-05-21 Qualcomm Incorporated Adjustment of cqi based on fading condition
CN106416359B (en) * 2014-03-21 2019-05-31 阿尔卡特朗讯 Method and apparatus for low cost machine type communication
CN104980247B (en) * 2014-04-04 2019-11-22 北京三星通信技术研究有限公司 Method, base station, terminal and system for adaptively adjusting modulation and coding scheme and reference signal pattern
US9877336B2 (en) * 2015-06-09 2018-01-23 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for link adaptation
DE102015109951B4 (en) * 2015-06-22 2021-10-21 Apple Inc. Method and apparatus for providing robust data communication between a client and a server
GB2552307A (en) * 2016-07-12 2018-01-24 Tcl Communication Ltd Methods and devices for link adaptation under conditions of intermittent interference in wireless communication systems
US20180035409A1 (en) * 2016-07-28 2018-02-01 Nokia Solutions And Networks Oy Mitigation of rate matching errors in a wireless network
JP6779373B2 (en) * 2016-09-13 2020-11-04 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Adaptation modulation coding method and base station
CN109314973B (en) * 2016-09-28 2023-05-19 富士通株式会社 Base station device, terminal device, wireless communication system and control method thereof
CN108270470B (en) * 2016-12-30 2021-02-23 华为技术有限公司 Data transmission method, sending end equipment and receiving end equipment
CN113890676A (en) 2017-03-24 2022-01-04 华为技术有限公司 Method and device for feeding back channel quality indication
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Also Published As

Publication number Publication date
EP2480023A1 (en) 2012-07-25
JP2011066545A (en) 2011-03-31
CN102598768A (en) 2012-07-18
WO2011034021A1 (en) 2011-03-24
JP5031009B2 (en) 2012-09-19
US20120207054A1 (en) 2012-08-16
US8743728B2 (en) 2014-06-03
CN102598768B (en) 2014-12-10
EP2480023A4 (en) 2016-03-30

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