MX2010002666A - Sistema de comunicaci?n in?lambrico que utiliza asignaci?n de sub-portadora piloto. - Google Patents
Sistema de comunicaci?n in?lambrico que utiliza asignaci?n de sub-portadora piloto.Info
- Publication number
- MX2010002666A MX2010002666A MX2010002666A MX2010002666A MX2010002666A MX 2010002666 A MX2010002666 A MX 2010002666A MX 2010002666 A MX2010002666 A MX 2010002666A MX 2010002666 A MX2010002666 A MX 2010002666A MX 2010002666 A MX2010002666 A MX 2010002666A
- Authority
- MX
- Mexico
- Prior art keywords
- subcarriers
- pilot
- wireless communication
- pilot subcarriers
- communication system
- Prior art date
Links
Classifications
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- 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
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- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- 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
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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
- 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
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
-
- 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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
- H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
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- 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
-
- 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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
-
- 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
- H04L27/2602—Signal structure
- H04L27/261—Details of reference 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
- H04L5/0058—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
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
-
- 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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
Abstract
Se divulga un sistema de comunicaci?n inal?mbrico que utiliza asignaci?n de sub-portadoras piloto y un m?todo de asignaci?n de sub-portadoras piloto para uso en comunicaci?n de enlace descendente y enlace ascendente en un sistema de antenas de m?ltiples entrada y salida (MIMO) utilizando modulaci?n de multiplexi?n por divisi?n de frecuencia ortogonal (OFDM). El m?todo incluye el proporcionar una estructura de marco que comprende s?mbolos de OFDM en dominio de tiempo y sub-portadoras en dominio de frecuencia y asignar alternadamente primeras sub-portadoras piloto para una primera antena y segundas sub-portadoras piloto para una segunda antena en los dominio de tiempo y frecuencia, en donde cada una de las primeras sub-portadoras piloto y segundas sub-portadoras piloto alternadas est? separada por un m?ltiplo de 9 sub-portadoras en el dominio de frecuencia y se asignada adicionalmente en dos s?mbolos OFDM contiguos.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20070091730 | 2007-09-10 | ||
US2189408P | 2008-01-17 | 2008-01-17 | |
US4562408P | 2008-04-17 | 2008-04-17 | |
KR1020080078432A KR101542378B1 (ko) | 2007-09-10 | 2008-08-11 | 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법 |
PCT/KR2008/005312 WO2009035246A2 (en) | 2007-09-10 | 2008-09-09 | Wireless communication system using pilot subcarrier allocation |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2010002666A true MX2010002666A (es) | 2010-04-21 |
Family
ID=40694615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2010002666A MX2010002666A (es) | 2007-09-10 | 2008-09-09 | Sistema de comunicaci?n in?lambrico que utiliza asignaci?n de sub-portadora piloto. |
Country Status (9)
Country | Link |
---|---|
US (4) | US8199843B2 (es) |
EP (2) | EP2171895A4 (es) |
JP (2) | JP5379141B2 (es) |
KR (2) | KR101520667B1 (es) |
CN (2) | CN101836385B (es) |
AU (1) | AU2008297736B2 (es) |
BR (1) | BRPI0817069A2 (es) |
MX (1) | MX2010002666A (es) |
WO (2) | WO2009035247A2 (es) |
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BRPI0817069A2 (pt) | 2016-10-11 |
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US20140146772A1 (en) | 2014-05-29 |
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WO2009035246A3 (en) | 2009-06-04 |
EP2171895A2 (en) | 2010-04-07 |
EP2181514B1 (en) | 2013-11-06 |
JP5138038B2 (ja) | 2013-02-06 |
CN101803256A (zh) | 2010-08-11 |
US20120207237A1 (en) | 2012-08-16 |
AU2008297736B2 (en) | 2011-09-15 |
CN101836385A (zh) | 2010-09-15 |
EP2181514A2 (en) | 2010-05-05 |
KR20090026722A (ko) | 2009-03-13 |
JP5379141B2 (ja) | 2013-12-25 |
US20090067534A1 (en) | 2009-03-12 |
US8675766B2 (en) | 2014-03-18 |
WO2009035247A3 (en) | 2009-06-04 |
AU2008297736A1 (en) | 2009-03-19 |
CN101836385B (zh) | 2013-10-30 |
EP2171895A4 (en) | 2011-03-30 |
KR101542378B1 (ko) | 2015-08-07 |
KR20090026723A (ko) | 2009-03-13 |
WO2009035247A2 (en) | 2009-03-19 |
JP2010539780A (ja) | 2010-12-16 |
US9264271B2 (en) | 2016-02-16 |
JP2010537548A (ja) | 2010-12-02 |
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