MX9801619A - Metodo y sistema para procesar una pluralidad de transmisiones de acceso multiple. - Google Patents
Metodo y sistema para procesar una pluralidad de transmisiones de acceso multiple.Info
- Publication number
- MX9801619A MX9801619A MX9801619A MX9801619A MX9801619A MX 9801619 A MX9801619 A MX 9801619A MX 9801619 A MX9801619 A MX 9801619A MX 9801619 A MX9801619 A MX 9801619A MX 9801619 A MX9801619 A MX 9801619A
- Authority
- MX
- Mexico
- Prior art keywords
- forward link
- data
- transmitted
- link signals
- multiple access
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
- H04B1/71075—Parallel interference cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Se describe un método y sistema que incorpora el uso de la cancelacion de la interferencia durante la porcion de enlace en envase de un sistema de telecomunicaciones inalámbrico. Una unidad suscriptora del sistema telefonico inalámbrico 104 recibe señales de enlace en avance multiples 102 y estima los datos que se transmiten a través de cada señal de enlace en avance 102. En respuesta a estos estimados, se calcula una forma de onda ideal 309. Para cada señal de enlace en avance 102, las formas de onda ideales asociadas con las otras señales de enlace en avance se substraen a partir del nivel de energía actual de aquella señal de enlace en avance antes que se determinen los datos para ser transmitidos. En la modalidad preferida, las señales de enlace en avance se procesan de acuerdo con las técnicas del espectro difundido de acceso multiple por division de codigo, y la estimacion de los datos que están siendo transmitidos se lleva a cabo a través del uso de un transformador de Hadamard rápido 308. En una modalidad alternativa, la estimacion de los datos se lleva a cabo en un solo canal, o sub-conjunto de canales, portados por las señales de enlace en avance, estimando al menos el nivel de la señal asociada de un canal piloto.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08518217 | 1995-08-28 | ||
US08/518,217 US5978413A (en) | 1995-08-28 | 1995-08-28 | Method and system for processing a plurality of multiple access transmissions |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9801619A true MX9801619A (es) | 1998-08-30 |
MXPA98001619A MXPA98001619A (es) | 1998-11-12 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
EA199800240A1 (ru) | 1998-10-29 |
EP0847632A1 (en) | 1998-06-17 |
TW393841B (en) | 2000-06-11 |
KR19990044216A (ko) | 1999-06-25 |
AU6957496A (en) | 1997-03-19 |
EA001051B1 (ru) | 2000-08-28 |
WO1997008846A1 (en) | 1997-03-06 |
ZA967115B (en) | 1997-03-03 |
IL123443A (en) | 2001-08-26 |
CN1194067A (zh) | 1998-09-23 |
US5978413A (en) | 1999-11-02 |
IL123443A0 (en) | 1998-09-24 |
JPH11511615A (ja) | 1999-10-05 |
AR003374A1 (es) | 1998-07-08 |
JP3202754B2 (ja) | 2001-08-27 |
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