AR079056A2 - Aparato y metodo para alcanzar un ancho de banda flexible utilizando bandas de guarda variables - Google Patents
Aparato y metodo para alcanzar un ancho de banda flexible utilizando bandas de guarda variablesInfo
- Publication number
- AR079056A2 AR079056A2 ARP100104247A ARP100104247A AR079056A2 AR 079056 A2 AR079056 A2 AR 079056A2 AR P100104247 A ARP100104247 A AR P100104247A AR P100104247 A ARP100104247 A AR P100104247A AR 079056 A2 AR079056 A2 AR 079056A2
- Authority
- AR
- Argentina
- Prior art keywords
- different
- bandwidth
- transmission
- bandwidths
- fft
- 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
- H04L27/2602—Signal structure
-
- 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
- H04L27/2626—Arrangements specific to the transmitter only
-
- 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
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
-
- 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
- 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
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
Técnicas para soportar de manera flexible diferentes anchos de banda en un sistema de comunicacion inalámbrico. El sistema soporta un ancho de banda de operacion configurable utilizando un diseno de ancho de banda fijo y bandas de guarda variables. Los valores para los diversos parámetros tales como el tamano de la transforma rápida de Fourier (FFT), la longitud del prefijo cíclico, y la velocidad de la muestra se puede seleccionar en base al diseno de ancho de banda. El diseno de ancho de banda se puede asociar con K sub portadores totales. Se pueden soportar diferentes anchos de banda de operacion seleccionando diferentes cantidades de sub portadores utilizables. Un transmisor y un receptor pueden llevar a cabo el procesamiento para una transmision utilizando el mismo tamano de FFT, longitud de prefijo cíclico, y velocidad de muestra sin importar el ancho de banda de operacion seleccionado. El sistema puede utilizar diferentes anchos de banda de operacion y/o diferentes valores de parámetros (por ejemplo, tamanos de FFT) para diferentes porciones de una transmision, por ejemplo, un preámbulo y un cuerpo principal de la transmision.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73102805P | 2005-10-27 | 2005-10-27 | |
US11/552,966 US20070147226A1 (en) | 2005-10-27 | 2006-10-25 | Method and apparatus for achieving flexible bandwidth using variable guard bands |
Publications (1)
Publication Number | Publication Date |
---|---|
AR079056A2 true AR079056A2 (es) | 2011-12-21 |
Family
ID=37806205
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP060104731A AR056604A1 (es) | 2005-10-27 | 2006-10-27 | Metodo y aparato para alcanzar un ancho de banda flexible utilizando bandas de guarda variables |
ARP100104247A AR079056A2 (es) | 2005-10-27 | 2010-11-17 | Aparato y metodo para alcanzar un ancho de banda flexible utilizando bandas de guarda variables |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP060104731A AR056604A1 (es) | 2005-10-27 | 2006-10-27 | Metodo y aparato para alcanzar un ancho de banda flexible utilizando bandas de guarda variables |
Country Status (14)
Country | Link |
---|---|
US (1) | US20070147226A1 (es) |
EP (2) | EP1941691B1 (es) |
JP (6) | JP2009514397A (es) |
KR (1) | KR101024726B1 (es) |
CN (1) | CN105656611B (es) |
AR (2) | AR056604A1 (es) |
BR (1) | BRPI0617870B1 (es) |
CA (2) | CA2724736C (es) |
ES (1) | ES2749425T3 (es) |
HK (1) | HK1221091A1 (es) |
HU (1) | HUE045538T2 (es) |
SG (3) | SG166774A1 (es) |
TW (1) | TWI413385B (es) |
WO (1) | WO2007050921A2 (es) |
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