WO2014023963A3 - Cqi adjustment - Google Patents

Cqi adjustment Download PDF

Info

Publication number
WO2014023963A3
WO2014023963A3 PCT/GB2013/052116 GB2013052116W WO2014023963A3 WO 2014023963 A3 WO2014023963 A3 WO 2014023963A3 GB 2013052116 W GB2013052116 W GB 2013052116W WO 2014023963 A3 WO2014023963 A3 WO 2014023963A3
Authority
WO
WIPO (PCT)
Prior art keywords
cqi
indication
radio conditions
time
base station
Prior art date
Application number
PCT/GB2013/052116
Other languages
French (fr)
Other versions
WO2014023963A2 (en
Inventor
Ashley Mills
Eric Douglas MURRAY
Original Assignee
Vodafone Ip Licensing Limited
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 to GB1214185.9 priority Critical
Priority to GB1214185.9A priority patent/GB2504739B/en
Application filed by Vodafone Ip Licensing Limited filed Critical Vodafone Ip Licensing Limited
Publication of WO2014023963A2 publication Critical patent/WO2014023963A2/en
Publication of WO2014023963A3 publication Critical patent/WO2014023963A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1205Schedule definition, set-up or creation
    • H04W72/1226Schedule definition, set-up or creation based on channel quality criteria, e.g. channel state dependent scheduling
    • H04W72/1231Schedule definition, set-up or creation based on channel quality criteria, e.g. channel state dependent scheduling using measured or perceived quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter

Abstract

A base station of a cellular telecommunications network is provided, the base station being adapted to: receive a channel quality indicator 'CQI' from a user equipment 'UE'; determine an indication of radio conditions at a first time contributing to the received CQI; and, schedule actions or instructions, including selecting a modulation and coding scheme 'MCS', in accordance with an adjusted CQI, wherein the adjusted CQI is calculated by: determining an indication of radio conditions at a second time later than the first time; and, evaluating the indication of radio conditions at the second time against the indication of radio conditions contributing to the received CQI. A method and computer readable storage medium are also provided.
PCT/GB2013/052116 2012-08-08 2013-08-08 Cqi adjustment WO2014023963A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1214185.9 2012-08-08
GB1214185.9A GB2504739B (en) 2012-08-08 2012-08-08 CQI adjustment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/420,340 US20150201428A1 (en) 2012-08-08 2013-08-08 Cqi adjustment
EP13750112.8A EP2883407A2 (en) 2012-08-08 2013-08-08 Cqi adjustment

Publications (2)

Publication Number Publication Date
WO2014023963A2 WO2014023963A2 (en) 2014-02-13
WO2014023963A3 true WO2014023963A3 (en) 2014-05-08

Family

ID=46935117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2013/052116 WO2014023963A2 (en) 2012-08-08 2013-08-08 Cqi adjustment

Country Status (4)

Country Link
US (1) US20150201428A1 (en)
EP (1) EP2883407A2 (en)
GB (1) GB2504739B (en)
WO (1) WO2014023963A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018049562A1 (en) * 2016-09-13 2018-03-22 华为技术有限公司 Adaptive modulation and coding method and base station

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9705635B2 (en) * 2015-03-06 2017-07-11 At&T Intellectual Property I, L.P. Apparatus and method to identify user equipment performance and to optimize network performance via big data
US9872188B2 (en) * 2015-07-28 2018-01-16 Futurewei Technologies, Inc. Adaptive filtering based network anomaly detection
WO2018162045A1 (en) * 2017-03-07 2018-09-13 Huawei Technologies Co., Ltd. Method and apparatus for handover aware cqi adjustment in wireless networks

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032274A1 (en) * 2009-09-15 2011-03-24 Nortel Networks Limited Adaptive modulation and coding scheme adjustment in wireless networks
WO2011104717A1 (en) * 2010-02-28 2011-09-01 Celeno Communications Ltd. Backoff adaptation for digital communication systems with channel quality information

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7522555B2 (en) * 2005-01-21 2009-04-21 Intel Corporation Techniques to manage channel prediction
KR20070033115A (en) * 2005-09-20 2007-03-26 삼성전자주식회사 System and method for allocate of adaptive modulation coding level in a broadband wireless access communication system
US20070082619A1 (en) * 2005-10-06 2007-04-12 Interdigital Technology Corporation Method and apparatus for controlling downlink transmission power for ofdma based evolved utra
US20090131066A1 (en) * 2007-11-20 2009-05-21 Motorola, Inc. Techniques for improving channel quality estimates in wireless communication systems
EP2220796A4 (en) * 2007-12-10 2013-07-10 Ericsson Telefon Ab L M A method of selecting a modulation and coding scheme based on adjusted channel quality values
EP2541989B1 (en) * 2010-02-23 2018-04-11 Kyushu University, National University Corporation Communications system, slave node, route building method, and program
US9374191B2 (en) * 2012-05-17 2016-06-21 Apple Inc. Outer loop link adaptation for device resumption

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032274A1 (en) * 2009-09-15 2011-03-24 Nortel Networks Limited Adaptive modulation and coding scheme adjustment in wireless networks
WO2011104717A1 (en) * 2010-02-28 2011-09-01 Celeno Communications Ltd. Backoff adaptation for digital communication systems with channel quality information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018049562A1 (en) * 2016-09-13 2018-03-22 华为技术有限公司 Adaptive modulation and coding method and base station

Also Published As

Publication number Publication date
GB2504739A (en) 2014-02-12
US20150201428A1 (en) 2015-07-16
WO2014023963A2 (en) 2014-02-13
EP2883407A2 (en) 2015-06-17
GB2504739B (en) 2015-01-07
GB201214185D0 (en) 2012-09-19

Similar Documents

Publication Publication Date Title
TWI393457B (en) Interface management in a wireless communication system using subframe time reuse
TWI399112B (en) Serving base station selection in a wireless communication network
WO2013066204A1 (en) Link adaptation in coordinated multipoint system
TW201128996A (en) Uplink feedback channel reporting mechanism in wireless systems
MX2010008321A (en) Interference mitigation for control channels in a wireless communication network.
WO2011074807A3 (en) Systems and methods for transmitting channel quality information in wireless communication systems
MX2010008492A (en) Short-term interference mitigation in a wireless communication system.
WO2010101431A3 (en) Method for performing comp operation and transmitting feedback information in a wireless communication system
WO2011055943A3 (en) A method for uplink transmission control and an apparatus for the same in a wireless communications system
WO2012096485A3 (en) Random access method and apparatus of ue in mobile communication system
WO2011139053A3 (en) Apparatus and method for transmitting sounding reference signal in wireless communication system supporting multiple component carriers
WO2008108228A1 (en) Base station device and communication control method
TW201108838A (en) Peer-to-peer communication using a wide area network air interface
TW201138346A (en) Coordinated multi-point (CoMP) network and protocol architecture
NZ617759A (en) Methods and apparatuses for altering measurement time and bandwidth during a measurement
TW201208416A (en) Access control and congestion control in machine-to-machine communication
WO2010005221A3 (en) Apparatus and method for inter-cell interference cancellation in mimo wireless communication system
WO2011055986A3 (en) A method and a base station for transmitting a csi-rs, and a method and a user equipment for receiving the csi-rs
WO2012115414A3 (en) Method and apparatus for saving power of user equipment in wireless communication system
TW201244515A (en) Method and user equipment of determining priority rules of periodic CSI reporting in carrier aggregation
WO2010009645A9 (en) Downlink receiving status feedback method
WO2012070823A3 (en) Method and device for measuring a downlink in a wireless communication system
WO2014165838A3 (en) Physical broadcast channel (pbch) coverage enhancements for machine type communications (mtc)
EP2432149A3 (en) System and method for pucch subband feedback
WO2009157706A3 (en) Downlink wireless transmission schemes with inter-cell interference mitigation

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14420340

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2013750112

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13750112

Country of ref document: EP

Kind code of ref document: A2