ES2025489A6 - Aparato de abonado para comunicacion inalambrica con una central de base en un sistema inalambrico de comunicacion de abonados. - Google Patents

Aparato de abonado para comunicacion inalambrica con una central de base en un sistema inalambrico de comunicacion de abonados.

Info

Publication number
ES2025489A6
ES2025489A6 ES9002169A ES9002169A ES2025489A6 ES 2025489 A6 ES2025489 A6 ES 2025489A6 ES 9002169 A ES9002169 A ES 9002169A ES 9002169 A ES9002169 A ES 9002169A ES 2025489 A6 ES2025489 A6 ES 2025489A6
Authority
ES
Spain
Prior art keywords
digital
chip
intermediate frequency
symbols
signal
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.)
Expired - Fee Related
Application number
ES9002169A
Other languages
English (en)
Inventor
Critchlow David Norton
Moshe Yehushua
Graham M Avis
Wade L Heimbigner
Karle Joseph Johnson
George Alan Wiley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Inc
International Mobile Machines Corp
Original Assignee
InterDigital Inc
International Mobile Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by InterDigital Inc, International Mobile Machines Corp filed Critical InterDigital Inc
Publication of ES2025489A6 publication Critical patent/ES2025489A6/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2092—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner with digital generation of the modulated carrier (does not include the modulation of a digitally generated carrier)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Telephone Function (AREA)

Abstract

APARATO DE ABONADO PARA SISTEMA DIGITAL DE COMUNICACION INALAMBRICA DE ABONADOS COMPRENDIDO POR UN CIRCUITO INTEGRADO PARA FILTRADO DE LOS SIMBOLOS DIGITALES DE ENTRADA, UN CHIP DE FRECUENCIA INTERMEDCIA DIGITAL QUE SINTETIZA DIGITALMENTE LA SEÑAL Y LA MODULA PROPORCIONANDO SIMBOLOS DIGITALES DE SALIDA, Y UN PROCESADOR SIMPLE PARA TRASCODIFICAR LA SEÑAL DIGITAL DE ENTRADA DE VOZ, DE MODULAR LA SEÑAL DE SALIDA Y REALIZAR LA SINTETIZACION DE LOS SIMBOLOS DIGITALES DE SALIDA. DESPUES DE FILTRADOS LOS SIMBOLOS DIGITALES DE ENTRADA SE GENERAN SEÑALES DE SINCRONIZACION PARA LAS OPERACIONES DE TRANSCODIFICACION Y SINTETIZACION EN EL PROCESADOR, PREVIENDOSE EN EL CHIP DIF LA SINTETIZACION DIGITAL DE FRECUENCIA INTERMEDIA, ADEMAS DE QUE LA RADIO PROCESA LA SEÑAL DE ENTRADA MODULADA PARA LA TRANSMISION DE LA MISMA A LA CENTRAL BASE.
ES9002169A 1989-08-14 1990-08-10 Aparato de abonado para comunicacion inalambrica con una central de base en un sistema inalambrico de comunicacion de abonados. Expired - Fee Related ES2025489A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/394,497 US5008900A (en) 1989-08-14 1989-08-14 Subscriber unit for wireless digital subscriber communication system

Publications (1)

Publication Number Publication Date
ES2025489A6 true ES2025489A6 (es) 1992-03-16

Family

ID=23559212

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9002169A Expired - Fee Related ES2025489A6 (es) 1989-08-14 1990-08-10 Aparato de abonado para comunicacion inalambrica con una central de base en un sistema inalambrico de comunicacion de abonados.

Country Status (29)

Country Link
US (2) US5008900A (es)
JP (1) JP2939825B2 (es)
KR (1) KR950010319B1 (es)
CN (1) CN1016553B (es)
AU (1) AU616849B2 (es)
BE (1) BE1005310A5 (es)
BR (1) BR9003984A (es)
CA (1) CA2022128C (es)
CZ (1) CZ285903B6 (es)
DE (1) DE4025771C2 (es)
DK (1) DK176895B1 (es)
ES (1) ES2025489A6 (es)
FI (1) FI111308B (es)
FR (1) FR2652464B1 (es)
GB (1) GB2235854B (es)
HU (1) HU210891B (es)
IL (2) IL95207A (es)
IT (1) IT1248619B (es)
MX (2) MX165585B (es)
MY (1) MY111041A (es)
NL (1) NL193013C (es)
NO (1) NO307239B1 (es)
NZ (1) NZ234689A (es)
PL (1) PL166789B1 (es)
PT (1) PT94975B (es)
RU (3) RU2154360C2 (es)
SE (2) SE512590C2 (es)
YU (1) YU155690A (es)
ZA (1) ZA906047B (es)

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Also Published As

Publication number Publication date
SE516955C2 (sv) 2002-03-26
NZ234689A (en) 1992-05-26
SE9202259D0 (sv) 1992-07-30
KR950010319B1 (ko) 1995-09-14
ZA906047B (en) 1991-05-29
DE4025771C2 (de) 2002-09-05
US5008900A (en) 1991-04-16
FI111308B (fi) 2003-06-30
SE9202259L (es)
PT94975A (pt) 1992-03-31
DE4025771A1 (de) 1991-02-21
PL166789B1 (en) 1995-06-30
PL286482A1 (en) 1991-07-29
KR910005606A (ko) 1991-03-30
SE9002624L (sv) 1991-02-15
SE512590C2 (sv) 2000-04-03
NL193013C (nl) 2002-01-09
IL95207A0 (en) 1991-06-10
FR2652464A1 (fr) 1991-03-29
DK185090D0 (da) 1990-08-02
RU2159007C2 (ru) 2000-11-10
HU210891B (en) 1995-09-28
HUT54842A (en) 1991-03-28
BR9003984A (pt) 1991-09-03
AU5987690A (en) 1991-03-28
CZ285903B6 (cs) 1999-11-17
CN1016553B (zh) 1992-05-06
US5325396A (en) 1994-06-28
IT9048227A1 (it) 1992-02-14
MY111041A (en) 1999-08-30
NO903529L (no) 1991-02-15
BE1005310A5 (fr) 1993-06-22
CN1049581A (zh) 1991-02-27
FI903986A0 (fi) 1990-08-13
IL95207A (en) 1995-03-15
DK176895B1 (da) 2010-03-15
GB2235854B (en) 1994-06-29
RU2138122C1 (ru) 1999-09-20
JP2939825B2 (ja) 1999-08-25
NL9001816A (nl) 1991-03-01
GB2235854A (en) 1991-03-13
NL193013B (nl) 1998-03-02
HU904933D0 (en) 1991-01-28
RU2154360C2 (ru) 2000-08-10
IT1248619B (it) 1995-01-21
MX9206714A (es) 1994-05-31
YU155690A (sh) 1994-01-20
MX165585B (es) 1992-11-24
NO307239B1 (no) 2000-02-28
FR2652464B1 (fr) 1994-01-14
IL110757A0 (en) 1994-11-11
IT9048227A0 (it) 1990-08-14
CS385690A3 (en) 1992-01-15
NO903529D0 (no) 1990-08-10
PT94975B (pt) 1997-11-28
CA2022128A1 (en) 1991-02-15
AU616849B2 (en) 1991-11-07
DK185090A (da) 1991-02-15
JPH0388437A (ja) 1991-04-12
SE9002624D0 (sv) 1990-08-13
CA2022128C (en) 1995-02-07
GB9016880D0 (en) 1990-09-12

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