NO20071261L - Fremgangsmate og system for linktilpasning i et ortogonalfrekvensdeltmultiplekset (OFDM) tradlost kommunikasjonssystem - Google Patents
Fremgangsmate og system for linktilpasning i et ortogonalfrekvensdeltmultiplekset (OFDM) tradlost kommunikasjonssystemInfo
- Publication number
- NO20071261L NO20071261L NO20071261A NO20071261A NO20071261L NO 20071261 L NO20071261 L NO 20071261L NO 20071261 A NO20071261 A NO 20071261A NO 20071261 A NO20071261 A NO 20071261A NO 20071261 L NO20071261 L NO 20071261L
- Authority
- NO
- Norway
- Prior art keywords
- ofdm
- orthogonal frequency
- wireless communication
- communication system
- fitting method
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
-
- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
-
- 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
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
-
- 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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
-
- 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), DMT
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60074104P | 2004-08-11 | 2004-08-11 | |
US11/123,738 US20060034244A1 (en) | 2004-08-11 | 2005-05-06 | Method and system for link adaptation in an orthogonal frequency division multiplexing (OFDM) wireless communication system |
PCT/US2005/026670 WO2006020400A2 (en) | 2004-08-11 | 2005-07-27 | Method and system for link adaptation in an orthogonal frequency division multiplexing (ofdm) wireless communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
NO20071261L true NO20071261L (no) | 2007-03-08 |
Family
ID=35799854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20071261A NO20071261L (no) | 2004-08-11 | 2007-03-08 | Fremgangsmate og system for linktilpasning i et ortogonalfrekvensdeltmultiplekset (OFDM) tradlost kommunikasjonssystem |
Country Status (12)
Country | Link |
---|---|
US (1) | US20060034244A1 (de) |
EP (2) | EP1779571A4 (de) |
JP (1) | JP2008510374A (de) |
KR (2) | KR20070067705A (de) |
AU (2) | AU2005274162B2 (de) |
BR (1) | BRPI0515018A (de) |
CA (1) | CA2576481A1 (de) |
IL (1) | IL181026A0 (de) |
MX (1) | MX2007001709A (de) |
NO (1) | NO20071261L (de) |
TW (3) | TWI305094B (de) |
WO (1) | WO2006020400A2 (de) |
Families Citing this family (49)
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US7469152B2 (en) * | 2004-11-30 | 2008-12-23 | The Regents Of The University Of California | Method and apparatus for an adaptive multiple-input multiple-output (MIMO) wireless communications systems |
US8068550B2 (en) * | 2005-01-28 | 2011-11-29 | Broadcom Corporation | Initiation of a MIMO communication |
US7742444B2 (en) * | 2005-03-15 | 2010-06-22 | Qualcomm Incorporated | Multiple other sector information combining for power control in a wireless communication system |
US8750908B2 (en) * | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US9055552B2 (en) * | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
JP4823225B2 (ja) | 2005-08-19 | 2011-11-24 | パナソニック株式会社 | マルチキャリア通信装置およびマルチキャリア通信方法 |
US7688788B2 (en) * | 2005-10-11 | 2010-03-30 | Microsoft Corporation | Congestion level and signal quality based estimator for bit-rate and automated load balancing for WLANS |
US20090207790A1 (en) * | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US20070097935A1 (en) * | 2005-10-27 | 2007-05-03 | Alexei Gorokhov | In-band rate control for an orthogonal frequency division multiple access communication system |
JP2009514413A (ja) * | 2005-10-27 | 2009-04-02 | クゥアルコム・インコーポレイテッド | 無線通信システムにおけるサービングセクタを保守する方法 |
US20070147226A1 (en) * | 2005-10-27 | 2007-06-28 | Aamod Khandekar | Method and apparatus for achieving flexible bandwidth using variable guard bands |
US7760827B2 (en) * | 2005-11-30 | 2010-07-20 | Motorola, Inc. | Method and apparatus for improving recovery performance of time windowed signals |
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US20070153745A1 (en) * | 2006-01-04 | 2007-07-05 | Yishen Sun | System and method for link adaptation for WLAN voice transmission |
US8488532B2 (en) * | 2006-01-23 | 2013-07-16 | Sharp Kabushiki Kaisha | Base station device, mobile station device, mobile station identifier allocation method, program, and recording medium |
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CN101238672B (zh) * | 2006-03-24 | 2012-07-04 | 华为技术有限公司 | 发送子带指示的方法和系统 |
CN102684839A (zh) * | 2006-03-24 | 2012-09-19 | 华为技术有限公司 | 发送子带指示的方法和系统 |
CN102724019A (zh) * | 2006-03-24 | 2012-10-10 | 华为技术有限公司 | 发送子带指示的方法和系统 |
EP2086146B1 (de) * | 2006-04-14 | 2011-01-05 | Mitsubishi Electric R&D Centre Europe B.V. | Verfahren zum Erhalt von für das Feedback zur Kanalqualität auf mindestens einem Frequenzunterband repräsentativer Information |
CN101421941B (zh) | 2006-04-21 | 2013-01-02 | 松下电器产业株式会社 | 多输入多输出接收装置和多输入多输出发送装置 |
KR20080004701A (ko) * | 2006-07-06 | 2008-01-10 | 삼성전자주식회사 | 무선 통신시스템에서 채널 피드백 장치 및 방법 |
EP3965328A1 (de) | 2006-09-26 | 2022-03-09 | Optis Wireless Technology, LLC | Kommunikationsschema für kanalqualitätsinformationen |
US7924809B2 (en) | 2006-11-22 | 2011-04-12 | Intel Corporation | Techniques to provide a channel quality indicator |
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KR101341517B1 (ko) | 2007-08-31 | 2013-12-16 | 엘지전자 주식회사 | 인접 대역 선택 방식에 기초한 채널 품질 지시자 생성 및전송 방법 |
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CN102362439B (zh) | 2009-01-26 | 2015-06-10 | 德雷塞尔大学 | 用于在mimo系统中选择可重新配置天线的系统和方法 |
KR101562519B1 (ko) * | 2009-02-06 | 2015-10-22 | 삼성전자주식회사 | Ofdm 시스템에서의 전력분배 방법 및 장치 |
JP5025712B2 (ja) * | 2009-11-10 | 2012-09-12 | パナソニック株式会社 | 無線通信装置および無線通信方法 |
US8767657B1 (en) * | 2011-04-19 | 2014-07-01 | Quantenna Communications Inc. | Mixed-mode MIMO detector in a local area network |
EP2579487B1 (de) | 2011-10-03 | 2014-05-21 | ST-Ericsson SA | Aggregation nicht aneinandergrenzender Träger |
CN103548372B (zh) | 2012-05-04 | 2018-02-06 | 华为技术有限公司 | 信噪比获取方法、信号接收设备以及信号发送设备 |
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CN108174413B (zh) * | 2017-12-26 | 2020-09-01 | Oppo广东移动通信有限公司 | 参数调整方法及装置 |
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-
2005
- 2005-05-06 US US11/123,738 patent/US20060034244A1/en not_active Abandoned
- 2005-07-27 CA CA002576481A patent/CA2576481A1/en not_active Abandoned
- 2005-07-27 JP JP2007525642A patent/JP2008510374A/ja not_active Withdrawn
- 2005-07-27 BR BRPI0515018-3A patent/BRPI0515018A/pt not_active IP Right Cessation
- 2005-07-27 MX MX2007001709A patent/MX2007001709A/es active IP Right Grant
- 2005-07-27 WO PCT/US2005/026670 patent/WO2006020400A2/en active Search and Examination
- 2005-07-27 AU AU2005274162A patent/AU2005274162B2/en not_active Expired - Fee Related
- 2005-07-27 EP EP05781896A patent/EP1779571A4/de not_active Ceased
- 2005-07-27 KR KR1020077010443A patent/KR20070067705A/ko not_active Application Discontinuation
- 2005-07-27 EP EP10152509A patent/EP2187554A1/de not_active Withdrawn
- 2005-07-27 KR KR1020077005403A patent/KR20070059086A/ko not_active Application Discontinuation
- 2005-07-28 TW TW094125662A patent/TWI305094B/zh not_active IP Right Cessation
- 2005-07-28 TW TW097128904A patent/TW201004195A/zh unknown
- 2005-07-28 TW TW095104276A patent/TW200705872A/zh unknown
-
2007
- 2007-01-29 IL IL181026A patent/IL181026A0/en unknown
- 2007-03-08 NO NO20071261A patent/NO20071261L/no not_active Application Discontinuation
-
2008
- 2008-11-13 AU AU2008243233A patent/AU2008243233A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2187554A1 (de) | 2010-05-19 |
AU2008243233A1 (en) | 2008-12-04 |
AU2005274162A1 (en) | 2006-02-23 |
TW200705872A (en) | 2007-02-01 |
IL181026A0 (en) | 2007-07-04 |
EP1779571A2 (de) | 2007-05-02 |
WO2006020400A2 (en) | 2006-02-23 |
EP1779571A4 (de) | 2007-12-19 |
AU2005274162B2 (en) | 2008-08-14 |
BRPI0515018A (pt) | 2008-07-01 |
CA2576481A1 (en) | 2006-02-23 |
TW201004195A (en) | 2010-01-16 |
KR20070059086A (ko) | 2007-06-11 |
MX2007001709A (es) | 2007-04-16 |
WO2006020400A3 (en) | 2006-12-07 |
KR20070067705A (ko) | 2007-06-28 |
TW200623697A (en) | 2006-07-01 |
US20060034244A1 (en) | 2006-02-16 |
TWI305094B (en) | 2009-01-01 |
JP2008510374A (ja) | 2008-04-03 |
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