CN1823490B - 在ofdm网络中用于确定链路质量的方法和设备 - Google Patents
在ofdm网络中用于确定链路质量的方法和设备 Download PDFInfo
- Publication number
- CN1823490B CN1823490B CN2004800200888A CN200480020088A CN1823490B CN 1823490 B CN1823490 B CN 1823490B CN 2004800200888 A CN2004800200888 A CN 2004800200888A CN 200480020088 A CN200480020088 A CN 200480020088A CN 1823490 B CN1823490 B CN 1823490B
- Authority
- CN
- China
- Prior art keywords
- signal
- pilot
- communication link
- link
- carrier
- 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.)
- Active
Links
Images
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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- 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
- H04L25/0204—Channel estimation of multiple channels
-
- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
Abstract
Description
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03291809A EP1499059B1 (en) | 2003-07-18 | 2003-07-18 | Method and device for determining the link quality in an OFDM network |
EP03291809.6 | 2003-07-18 | ||
PCT/EP2004/051249 WO2005015813A1 (en) | 2003-07-18 | 2004-06-25 | Method and device for determining the link quality in an ofdm network |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1823490A CN1823490A (zh) | 2006-08-23 |
CN1823490B true CN1823490B (zh) | 2010-06-16 |
Family
ID=33462262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004800200888A Active CN1823490B (zh) | 2003-07-18 | 2004-06-25 | 在ofdm网络中用于确定链路质量的方法和设备 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1499059B1 (zh) |
KR (1) | KR101109996B1 (zh) |
CN (1) | CN1823490B (zh) |
WO (1) | WO2005015813A1 (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1917501B (zh) * | 2006-09-19 | 2010-09-08 | 华为技术有限公司 | 一种载波干扰噪声比的测量方法及装置 |
CN101282166B (zh) * | 2007-04-04 | 2012-10-10 | 中兴通讯股份有限公司 | 用于动态调度的物理信道训练码分配方法 |
JP4924201B2 (ja) * | 2007-05-23 | 2012-04-25 | 日本電気株式会社 | 受信品質測定装置および受信品質測定方法 |
US8279743B2 (en) * | 2007-05-31 | 2012-10-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for interference estimation for orthogonal pilot patterns |
US8559490B2 (en) | 2007-06-29 | 2013-10-15 | Thomson Licensing | Apparatus and method for removing common phase error in a DVB-T/H receiver |
JP4961038B2 (ja) * | 2007-06-29 | 2012-06-27 | トムソン ライセンシング | Dvb−t/h受信器でコモンフェーズエラーを除去する装置及び方法 |
US8532605B2 (en) | 2007-08-09 | 2013-09-10 | Intel Mobile Communications GmbH | Determining a receiving quality in a radio communication device |
EP2031790B1 (en) * | 2007-08-30 | 2011-01-26 | Telefonaktiebolaget LM Ericsson (publ) | Estimating a signal-to-interference ratio in a receiver of a wireless communications system |
CN102238111A (zh) * | 2010-04-23 | 2011-11-09 | 中兴通讯股份有限公司 | 一种信号干扰检测方法及装置 |
US8605839B2 (en) | 2010-09-21 | 2013-12-10 | Qualcomm Incorporated | System and method for reducing power consumption in a FLO-EV receiver |
CN102694593B (zh) * | 2012-05-30 | 2015-04-15 | 武汉邮电科学研究院 | 一种光无源器件的谱特性的测试方法 |
KR102027828B1 (ko) | 2013-08-14 | 2019-10-04 | 삼성전자 주식회사 | 채널 정보 추정 방법 및 장치 |
AT517364B1 (de) * | 2015-06-24 | 2020-01-15 | Siemens Ag Oesterreich | Verfahren und Kommunikationssystem zur drahtlosen Datenübertragung über ein lokales Funknetz |
CN108736919B (zh) * | 2017-04-14 | 2020-05-26 | 大唐移动通信设备有限公司 | 一种噪声功率估计方法及装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1287730A (zh) * | 1998-11-06 | 2001-03-14 | 松下电器产业株式会社 | Ofdm发送接收装置及ofdm发送接收方法 |
CN1322421A (zh) * | 1998-10-06 | 2001-11-14 | 艾利森电话股份有限公司 | 自适应小区级调制和信道编码 |
EP1176750A1 (en) * | 2000-07-25 | 2002-01-30 | Telefonaktiebolaget L M Ericsson (Publ) | Link quality determination of a transmission link in an OFDM transmission system |
CN1347606A (zh) * | 1999-02-19 | 2002-05-01 | 艾利森电话股份有限公司 | 无线通信系统中使得能够进行灵活的链路自适应的控制信令的方法和系统 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6563885B1 (en) * | 2001-10-24 | 2003-05-13 | Texas Instruments Incorporated | Decimated noise estimation and/or beamforming for wireless communications |
-
2003
- 2003-07-18 EP EP03291809A patent/EP1499059B1/en not_active Expired - Lifetime
-
2004
- 2004-06-25 KR KR1020067001071A patent/KR101109996B1/ko active IP Right Grant
- 2004-06-25 CN CN2004800200888A patent/CN1823490B/zh active Active
- 2004-06-25 WO PCT/EP2004/051249 patent/WO2005015813A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1322421A (zh) * | 1998-10-06 | 2001-11-14 | 艾利森电话股份有限公司 | 自适应小区级调制和信道编码 |
CN1287730A (zh) * | 1998-11-06 | 2001-03-14 | 松下电器产业株式会社 | Ofdm发送接收装置及ofdm发送接收方法 |
CN1347606A (zh) * | 1999-02-19 | 2002-05-01 | 艾利森电话股份有限公司 | 无线通信系统中使得能够进行灵活的链路自适应的控制信令的方法和系统 |
EP1176750A1 (en) * | 2000-07-25 | 2002-01-30 | Telefonaktiebolaget L M Ericsson (Publ) | Link quality determination of a transmission link in an OFDM transmission system |
Non-Patent Citations (4)
Title |
---|
Li, Zhen, Song Junde, Song Mei & Zhou Wenan.Link adaptation of wideband OFDM systemsinmulti-pathfading channel.IEEE CCECE2002. Candian conference on Electrical and Computer Engineering3.2002,31295-1299. * |
Li, Zhen, Song Junde, Song Mei & * |
Satoshi MUNETA,Yoichi MATSUMOTO,et el..A new frequency-domain link adaptationschemeforbroadband OFDM systems.IEEE VTS 50TH Vehicular Technology Conference1.1999,1253-257. * |
Zhou Wenan.Link adaptation of wideband OFDM systemsinmulti-pathfading channel.IEEE CCECE2002. Candian conference on Electrical and Computer Engineering3.2002,31295-1299. * |
Also Published As
Publication number | Publication date |
---|---|
KR20060063893A (ko) | 2006-06-12 |
WO2005015813A1 (en) | 2005-02-17 |
KR101109996B1 (ko) | 2012-01-31 |
CN1823490A (zh) | 2006-08-23 |
EP1499059A1 (en) | 2005-01-19 |
EP1499059B1 (en) | 2011-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7260054B2 (en) | SINR measurement method for OFDM communications systems | |
US20210075572A1 (en) | Method and apparatus for generating pilot tone in orthogonal frequency division multiplexing access system, and method and apparatus for estimating channel using it | |
US8477891B2 (en) | Noise estimation for wireless communication | |
EP1488590B1 (en) | A multiple channel wireless receiver | |
CN1823490B (zh) | 在ofdm网络中用于确定链路质量的方法和设备 | |
US7280504B2 (en) | OFDM transmitting and receiving apparatus | |
US20060221807A1 (en) | Multi-carrier transmitter apparatus, multi-carrier receiver apparatus and multi-carrier communication method | |
US20060018250A1 (en) | Apparatus and method for transmitting and receiving a signal in an orthogonal frequency division multiplexing system | |
US20070070967A1 (en) | Apparatus and method for detecting feedback information in a wireless communication system | |
US20100150000A1 (en) | Radio communication system, base station, terminal apparatus and pilot signal controlling method | |
US20130315342A1 (en) | Method and device for transmitting a preamble in a wireless communication system | |
US7702031B2 (en) | System and method for adaptive modulation | |
US20050135497A1 (en) | Adaptive transmitting and receiving device and method in wireless communication system using frequency division duplexing | |
US7480353B2 (en) | Method and apparatus for estimating channel response and receiver apparatus using the estimated channel response for OFDM radio communication systems | |
US20070049214A1 (en) | Transmit antenna switching apparatus and method in MIMO system | |
US7907675B2 (en) | Radio communication system and radio communication method | |
JP2002247003A (ja) | 直交周波数分割多重変調方式を用いた伝送装置 | |
US20080187031A1 (en) | Mobile terminal and method for measuring channel quality | |
US8374293B1 (en) | Signal power estimation for cellular OFDM systems | |
US20110176645A1 (en) | Method and apparatus for estimating noise and interference power in wireless telecommunications system | |
WO2019167877A1 (ja) | 無線通信システム、無線通信方法および送信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: MOTOROLA MOBILE CO., LTD Free format text: FORMER OWNER: MOTOROLA INC. Effective date: 20110119 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20110119 Address after: Illinois State Patentee after: MOTOROLA MOBILITY, Inc. Address before: Illinois, USA Patentee before: Motorola, Inc. |
|
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Illinois State Patentee after: MOTOROLA MOBILITY LLC Address before: Illinois State Patentee before: MOTOROLA MOBILITY, Inc. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20160304 Address after: California, USA Patentee after: Google Technology Holdings LLC Address before: Illinois State Patentee before: MOTOROLA MOBILITY LLC |