EP1116366A1 - Transmodulation entre les signaux gmsk-modules et des signaux mdpq-modules - Google Patents

Transmodulation entre les signaux gmsk-modules et des signaux mdpq-modules

Info

Publication number
EP1116366A1
EP1116366A1 EP99969868A EP99969868A EP1116366A1 EP 1116366 A1 EP1116366 A1 EP 1116366A1 EP 99969868 A EP99969868 A EP 99969868A EP 99969868 A EP99969868 A EP 99969868A EP 1116366 A1 EP1116366 A1 EP 1116366A1
Authority
EP
European Patent Office
Prior art keywords
qpsk
modulated data
controller
gfsk
dect
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.)
Withdrawn
Application number
EP99969868A
Other languages
German (de)
English (en)
Inventor
Uwe Sydon
Jürgen KOCKMANN
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE1998144097 external-priority patent/DE19844097A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1116366A1 publication Critical patent/EP1116366A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • 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
    • H04L27/22—Demodulator circuits; Receiver circuits

Definitions

  • a suitable module which enables signals from an existing DECT controller to be to transfer based systems (e.g. PWT).
  • This module can be implemented, for example, in the form of an ASIC or in any other form.
  • This module must implement the following functions:
  • FIG. 5 shows a mobile radio device which can be a base station or a mobile station.
  • a DECT baseband controller 22 is provided.
  • This baseband controller 22 has, among other things, a modulator / demodulator.
  • an additional ballast module 23 is provided, which can be implemented, for example, by an ASIC.
  • the ASIC 23 When receiving QPSK-modulated data, which the high-frequency module 4, 5 transmits to the ASIC 23 and which can also contain a synchronization word in addition to the user data, the ASIC 23 continues to provide synchronization information together with the actual user data GFSK-modulated to the DECT base station. band controller 22.
  • the GFSK modulator / demodulator 20, 21 of the DECT baseband controller 22 outputs GFSK-modulated data to the ASIC 23.
  • the ASIC 23 converts the GFSK-modulated data into QPSK-modulated data and transmits it them to the high-frequency module 4, 5 of the DECT baseband controller.
  • the high-frequency module 4, 5 then outputs this QPSK-modulated data to the antenna 6, 7.
  • DECT baseband controllers 22 are required for synchronization.
  • the ballast module 23 which implements the conversion between the QPSK and the GFSK modulation method, transmits the DECT baseband controller 22 in its synchronized state permanently to a DECT synchronization signal (1, 0 - Episode).
  • the DECT baseband controller 22 can thus synchronize with this sequence of the DECT synchronization signal from the ballast module 23.
  • Antenna mobile station 8 first radio transmission link

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un contrôleur DECT servant à transmettre des données à l'aide d'un procédé à MDPQ. A cet effet, il est prévu un module monté en amont (23) qui convertit les données modulées par GMSK, émises par le contrôleur DECT (22), en données modulées par MDPQ, à envoyer. Le module monté en amont (23) peut être par exemple un circuit intégré spécifique. Le module monté en amont (23) peut en outre piloter un module H.F. (4,5) du contrôleur DECT (22), de manière que les données soient par exemple modulées sur une fréquence porteuse de la plage 2,4 GHz-ISM. On peut dès lors obtenir un système pour la plage 2,4 GHz-ISM pouvant satisfaire aux exigences (FCC partie 15) de cette plage, du fait qu'on utilise une modulation de type MDPQ et que la fréquence porteuse est changée au bout d'une période prédéterminée (système à spectre étalé à sauts de fréquence). On peut simultanément utiliser un contrôleur DECT classique de manière économique.
EP99969868A 1998-09-25 1999-09-23 Transmodulation entre les signaux gmsk-modules et des signaux mdpq-modules Withdrawn EP1116366A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE1998144097 DE19844097A1 (de) 1998-09-25 1998-09-25 Umsetzung von GFSK-modulierten Signalen in QPSK-modulierte Signale
DE19844097 1998-09-25
DE19844165 1998-09-25
DE19844165 1998-09-25
PCT/DE1999/003057 WO2000019674A1 (fr) 1998-09-25 1999-09-23 Transmodulation entre les signaux gmsk-modules et des signaux mdpq-modules

Publications (1)

Publication Number Publication Date
EP1116366A1 true EP1116366A1 (fr) 2001-07-18

Family

ID=26049092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99969868A Withdrawn EP1116366A1 (fr) 1998-09-25 1999-09-23 Transmodulation entre les signaux gmsk-modules et des signaux mdpq-modules

Country Status (2)

Country Link
EP (1) EP1116366A1 (fr)
WO (1) WO2000019674A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8103064A (nl) * 1981-06-25 1983-01-17 Philips Nv Gemeenschappelijke antenne-inrichting voor de ontvangst en distributie van tv- en digitale audiosignalen.
US4592009A (en) * 1983-11-17 1986-05-27 E-Systems, Inc. MSK surface acoustic wave convolver
US5408259A (en) * 1993-12-30 1995-04-18 Northern Telecom Limited Data modulation arrangement for selectively distributing data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0019674A1 *

Also Published As

Publication number Publication date
WO2000019674A1 (fr) 2000-04-06

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