KR100825878B1 - 통신 시스템 내의 채널 품질 피드백을 위한 방법 및 장치 - Google Patents
통신 시스템 내의 채널 품질 피드백을 위한 방법 및 장치 Download PDFInfo
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- KR100825878B1 KR100825878B1 KR1020057020270A KR20057020270A KR100825878B1 KR 100825878 B1 KR100825878 B1 KR 100825878B1 KR 1020057020270 A KR1020057020270 A KR 1020057020270A KR 20057020270 A KR20057020270 A KR 20057020270A KR 100825878 B1 KR100825878 B1 KR 100825878B1
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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
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
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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
- H04L1/0002—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
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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
- H04L1/12—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
- H04L1/1803—Stop-and-wait protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03414—Multicarrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03802—Signalling on the reverse channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
Description
Claims (7)
- 채널 품질 요청 메시지를 원격 스테이션에 전송하는 단계로서, 상기 채널 품질 요청 메시지는 미리 결정된 수의 미래 채널 품질 보고들을 지정하고, 상기 채널 품질 요청 메시지는 상기 원격 스테이션이 인지된 채널 품질(perceived channel quality)을 나타내는 복수의 채널 품질 보고들을 전송하도록 하는데 사용되며, 상기 채널 품질 요청 메시지는 상기 원격 스테이션이, 상기 복수의 채널 품질 보고들을 전송한 후에 상기 원격 스테이션으로의 중단 메시지의 후속 전송 없이, 채널 품질 보고 메시지들을 전송하는 것을 중단하도록 하는데 사용되는, 상기 전송 단계를 포함하는 방법.
- 제 1 항에 있어서,상기 채널 품질 보고를 수신하는 단계; 및상기 채널 품질 보고에 기초하여 변조 및 코딩 방식을 결정하는 단계를 더 포함하는, 방법.
- 제 1 항에 있어서,큐 상태를 상기 원격 스테이션에 전송하고, 상기 원격 스테이션이 상기 채널 품질 보고들을 계속 전송하게 하는 단계를 더 포함하는, 방법.
- 제 3 항에 있어서,상기 원격 스테이션은, 상기 큐 상태가 상기 원격 스테이션에 전송될 다른 데이터가 없다는 것을 나타낼 때까지 상기 채널 품질 보고들을 계속 전송하는, 방법.
- 제 3 항에 있어서,상기 큐 상태를 전송하는 단계는 최종 패킷 표시자를 상기 원격 스테이션에 전송하는 단계를 포함하는, 방법.
- 전송기를 통해 원격 스테이션에 채널 품질 요청 메시지를 전달하는 제어 회로로서, 상기 채널 품질 요청 메시지는 미리 결정된 수의 미래 채널 품질 보고들을 지정하고, 상기 채널 품질 요청 메시지는 상기 원격 스테이션이 인지된 채널 품질을 나타내는 복수의 채널 품질 보고들을 전송하도록 하는데 사용되며, 상기 채널 품질 요청 메시지는 상기 원격 스테이션이, 상기 복수의 채널 품질 보고들을 전송한 후에 상기 원격 스테이션으로의 중단 메시지의 후속 전송 없이, 채널 품질 보고 메시지들을 전송하는 것을 중단하도록 하는데 사용되는, 상기 제어 회로; 및상기 제어 회로에 응답하여, 상기 채널 품질 요청 메시지를 상기 원격 스테이션에 전송하는 전송기를 포함하는 장치.
- 제 6 항에 있어서,상기 채널 품질 보고를 수신하는 수신기; 및상기 채널 품질 보고에 기초하여 변조 및 코딩 방식을 이용하는 적응형 변조 회로를 더 포함하는, 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/423,243 US7640373B2 (en) | 2003-04-25 | 2003-04-25 | Method and apparatus for channel quality feedback within a communication system |
US10/423,243 | 2003-04-25 |
Publications (2)
Publication Number | Publication Date |
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KR20060007396A KR20060007396A (ko) | 2006-01-24 |
KR100825878B1 true KR100825878B1 (ko) | 2008-04-28 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020057020270A KR100825878B1 (ko) | 2003-04-25 | 2004-04-23 | 통신 시스템 내의 채널 품질 피드백을 위한 방법 및 장치 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7640373B2 (ko) |
EP (1) | EP1620965B1 (ko) |
JP (1) | JP4584249B2 (ko) |
KR (1) | KR100825878B1 (ko) |
CN (1) | CN1781274B (ko) |
CA (1) | CA2521716C (ko) |
ES (1) | ES2391176T3 (ko) |
IL (1) | IL171296A (ko) |
WO (1) | WO2004098072A2 (ko) |
Cited By (1)
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CN1781274A (zh) | 2006-05-31 |
WO2004098072A2 (en) | 2004-11-11 |
CA2521716C (en) | 2012-09-18 |
CN1781274B (zh) | 2010-04-28 |
ES2391176T3 (es) | 2012-11-22 |
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WO2004098072A3 (en) | 2005-01-06 |
JP4584249B2 (ja) | 2010-11-17 |
US7640373B2 (en) | 2009-12-29 |
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