JP3798175B2 - 通信システムのチャネル品質情報を測定するためのシステムおよび方法 - Google Patents

通信システムのチャネル品質情報を測定するためのシステムおよび方法 Download PDF

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JP3798175B2
JP3798175B2 JP07467299A JP7467299A JP3798175B2 JP 3798175 B2 JP3798175 B2 JP 3798175B2 JP 07467299 A JP07467299 A JP 07467299A JP 7467299 A JP7467299 A JP 7467299A JP 3798175 B2 JP3798175 B2 JP 3798175B2
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signal
metric
determining
interference
value
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JPH11313040A (ja
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バラチャンドラン クリシュナ
ポール イーザック リチャード
アール． カダバ スリニヴァス
ナンダ サンジヴ
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ルーセント テクノロジーズ インコーポレーテッド
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    • 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
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • 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
    • H04L1/0009—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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • 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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
JP07467299A 1998-03-19 1999-03-19 通信システムのチャネル品質情報を測定するためのシステムおよび方法 Expired - Fee Related JP3798175B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/044,636 US6215827B1 (en) 1997-08-25 1998-03-19 System and method for measuring channel quality information in a communication system
US09/044636 1998-03-19

Publications (2)

Publication Number Publication Date
JPH11313040A JPH11313040A (ja) 1999-11-09
JP3798175B2 true JP3798175B2 (ja) 2006-07-19

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JP07467299A Expired - Fee Related JP3798175B2 (ja) 1998-03-19 1999-03-19 通信システムのチャネル品質情報を測定するためのシステムおよび方法

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US (1) US6215827B1 (US06215827-20010410-M00006.png)
EP (1) EP0944201A3 (US06215827-20010410-M00006.png)
JP (1) JP3798175B2 (US06215827-20010410-M00006.png)
KR (1) KR100336231B1 (US06215827-20010410-M00006.png)
CN (1) CN1154391C (US06215827-20010410-M00006.png)
AU (1) AU2121799A (US06215827-20010410-M00006.png)
BR (1) BR9915302A (US06215827-20010410-M00006.png)
CA (1) CA2263060C (US06215827-20010410-M00006.png)

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Publication number Publication date
KR100336231B1 (ko) 2002-05-09
CN1237074A (zh) 1999-12-01
CA2263060A1 (en) 1999-09-19
EP0944201A3 (en) 2002-03-06
BR9915302A (pt) 2001-07-24
AU2121799A (en) 1999-09-30
KR19990077950A (ko) 1999-10-25
CA2263060C (en) 2003-12-09
US6215827B1 (en) 2001-04-10
EP0944201A2 (en) 1999-09-22
JPH11313040A (ja) 1999-11-09
CN1154391C (zh) 2004-06-16

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