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WO2012148161A3 - 무선 접속 시스템에서 채널 상태 정보 전송 방법 및 이를 위한 단말 - Google Patents

무선 접속 시스템에서 채널 상태 정보 전송 방법 및 이를 위한 단말 Download PDF

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Publication number
WO2012148161A3
WO2012148161A3 PCT/KR2012/003178 KR2012003178W WO2012148161A3 WO 2012148161 A3 WO2012148161 A3 WO 2012148161A3 KR 2012003178 W KR2012003178 W KR 2012003178W WO 2012148161 A3 WO2012148161 A3 WO 2012148161A3
Authority
WO
WIPO (PCT)
Prior art keywords
csi
cells
state information
wireless access
channel state
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/KR2012/003178
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English (en)
French (fr)
Other versions
WO2012148161A2 (ko
Inventor
김진민
한승희
이현우
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.)
LG Electronics Inc
Original Assignee
LG Electronics 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 LG Electronics Inc filed Critical LG Electronics Inc
Priority to EP12777780.3A priority Critical patent/EP2704342B1/en
Priority to US14/112,191 priority patent/US9490959B2/en
Publication of WO2012148161A2 publication Critical patent/WO2012148161A2/ko
Publication of WO2012148161A3 publication Critical patent/WO2012148161A3/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04L1/0001—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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H04L1/0073—Special arrangements for feedback channel
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

Landscapes

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

Abstract

본 발명에서는 캐리어 병합(Carrier Aggregation/Multiple Cells)을 지원하는 무선 접속 시스템에서 채널 상태 정보 전송 방법 및 이를 위한 단말이 개시된다. 구체적으로, 제 1셀에 대한 주기적인 CSI 보고(report)의 시점과 제 2셀에 대한 주기적인 CSI 보고의 시점이 충돌하는 경우, 제1 셀에 대한 CSI의 비트 크기와 제 2셀에 대한 CSI의 비트 크기 중 최대의 비트 크기를 이용하여 자원 요소(Resource Element)의 개수를 산출하는 단계, 제1 셀에 대한 CSI와 제 2셀에 대한 CSI 중 우선 순위가 높은 CSI의 비트를 최대 비트 크기에 맞게 조정하는 단계 및 우선 순위가 높은 CSI의 조정된 비트를 산출된 자원 요소에 매핑하여 기지국에 전송하는 단계를 포함한다.
PCT/KR2012/003178 2011-04-26 2012-04-25 무선 접속 시스템에서 채널 상태 정보 전송 방법 및 이를 위한 단말 Ceased WO2012148161A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12777780.3A EP2704342B1 (en) 2011-04-26 2012-04-25 Channel state information transmission in a wireless access system supporting multiple cells.
US14/112,191 US9490959B2 (en) 2011-04-26 2012-04-25 Method for transmitting channel state information in wireless access system and terminal therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161479363P 2011-04-26 2011-04-26
US61/479,363 2011-04-26

Publications (2)

Publication Number Publication Date
WO2012148161A2 WO2012148161A2 (ko) 2012-11-01
WO2012148161A3 true WO2012148161A3 (ko) 2013-01-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/003178 Ceased WO2012148161A2 (ko) 2011-04-26 2012-04-25 무선 접속 시스템에서 채널 상태 정보 전송 방법 및 이를 위한 단말

Country Status (3)

Country Link
US (1) US9490959B2 (ko)
EP (1) EP2704342B1 (ko)
WO (1) WO2012148161A2 (ko)

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Also Published As

Publication number Publication date
US9490959B2 (en) 2016-11-08
US20140044083A1 (en) 2014-02-13
EP2704342A4 (en) 2014-10-22
WO2012148161A2 (ko) 2012-11-01
EP2704342A2 (en) 2014-03-05
EP2704342B1 (en) 2016-03-23

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