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WO2012148169A3 - Method and apparatus for transmitting channel state information in carrier aggregation system - Google Patents

Method and apparatus for transmitting channel state information in carrier aggregation system Download PDF

Info

Publication number
WO2012148169A3
WO2012148169A3 PCT/KR2012/003191 KR2012003191W WO2012148169A3 WO 2012148169 A3 WO2012148169 A3 WO 2012148169A3 KR 2012003191 W KR2012003191 W KR 2012003191W WO 2012148169 A3 WO2012148169 A3 WO 2012148169A3
Authority
WO
WIPO (PCT)
Prior art keywords
channel state
state information
serving cells
carrier aggregation
aggregation system
Prior art date
Application number
PCT/KR2012/003191
Other languages
French (fr)
Korean (ko)
Other versions
WO2012148169A2 (en
Inventor
서동연
김민규
양석철
안준기
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Publication of WO2012148169A2 publication Critical patent/WO2012148169A2/en
Publication of WO2012148169A3 publication Critical patent/WO2012148169A3/en

Links

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
    • H04L1/0028—Formatting
    • H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Provided are a method and an apparatus for transmitting channel state information (CSI) by a user equipment in a carrier aggregation system, in which a plurality of serving cells are set. The method is comprises the following steps: selecting serving cells which are set by receiving setting information on allocation of the plurality of serving cells; selecting at least one activated serving cell from the serving cells that are set by receiving activation information, which expresses activation of each of the serving cells that are set; deciding the size of a channel state information reporting field based on the serving cells that are set; generating the channel state information based on priority; and transmitting the channel state information that is generated through the channel state information reporting field having the size which is decided.
PCT/KR2012/003191 2011-04-25 2012-04-25 Method and apparatus for transmitting channel state information in carrier aggregation system WO2012148169A2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201161478554P 2011-04-25 2011-04-25
US61/478,554 2011-04-25
US201161538148P 2011-09-23 2011-09-23
US61/538,148 2011-09-23
US201261611561P 2012-03-15 2012-03-15
US61/611,561 2012-03-15
US201261615848P 2012-03-26 2012-03-26
US61/615,848 2012-03-26

Publications (2)

Publication Number Publication Date
WO2012148169A2 WO2012148169A2 (en) 2012-11-01
WO2012148169A3 true WO2012148169A3 (en) 2013-01-03

Family

ID=47072902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/003191 WO2012148169A2 (en) 2011-04-25 2012-04-25 Method and apparatus for transmitting channel state information in carrier aggregation system

Country Status (1)

Country Link
WO (1) WO2012148169A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10644828B2 (en) * 2018-02-09 2020-05-05 Samsung Electronics Co., Ltd. Method and apparatus for wideband CSI reporting in an advanced wireless communication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010068487A1 (en) * 2008-11-25 2010-06-17 Interdigital Patent Holdings, Inc. Method and apparatus for utilizing a plurality of uplink carriers and a plurality of downlink carriers
WO2010147416A2 (en) * 2009-06-18 2010-12-23 Lg Electronics Inc. Method and apparatus for feeding back channel state information
WO2010148319A1 (en) * 2009-06-19 2010-12-23 Interdigital Patent Holdings, Inc. Signaling uplink control information in lte-a

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010068487A1 (en) * 2008-11-25 2010-06-17 Interdigital Patent Holdings, Inc. Method and apparatus for utilizing a plurality of uplink carriers and a plurality of downlink carriers
WO2010147416A2 (en) * 2009-06-18 2010-12-23 Lg Electronics Inc. Method and apparatus for feeding back channel state information
WO2010148319A1 (en) * 2009-06-19 2010-12-23 Interdigital Patent Holdings, Inc. Signaling uplink control information in lte-a

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS INC.: "Periodic CSI reporting priority between multiple carriers", 3GPP TSG-RAN2 MEETING #73 R2-111290, 21 February 2011 (2011-02-21) - 25 February 2011 (2011-02-25), Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_73/Docs/R2-111290.zip> *

Also Published As

Publication number Publication date
WO2012148169A2 (en) 2012-11-01

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