WO2005002259A1 - Wire-bound serial interface with infrared data transfer protocol - Google Patents

Wire-bound serial interface with infrared data transfer protocol Download PDF

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Publication number
WO2005002259A1
WO2005002259A1 PCT/EP2004/001274 EP2004001274W WO2005002259A1 WO 2005002259 A1 WO2005002259 A1 WO 2005002259A1 EP 2004001274 W EP2004001274 W EP 2004001274W WO 2005002259 A1 WO2005002259 A1 WO 2005002259A1
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WO
WIPO (PCT)
Prior art keywords
module
data transmission
serial interface
interface
infrared data
Prior art date
Application number
PCT/EP2004/001274
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German (de)
French (fr)
Inventor
Jens Biebach
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2005002259A1 publication Critical patent/WO2005002259A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Definitions

  • the invention relates to a method and a device for data transmission via an interface between a module in a communication network and an application processor.
  • Serial interfaces are used for control and data transmission between a module in a communication network and an application processor, such as. B. a microcontroller, computer or the like is used. Such serial interfaces are preferred due to the small number of control lines required for control and data transmission in modules.
  • a module can, for. B. be a cellular module in a cellular communication network. Functionalities such as B. calls via the hands-free system, car PCs with constant access to the Internet or intranet, fax,
  • Wireless cellular communication networks such as UMTS or EGPRS
  • UMTS or EGPRS exceed the transmission rate of 230 kBit / s currently realized on the serial interface of computers (PC's) when transferring such functionalities.
  • the RS 232 protocol is used as the transmission protocol.
  • Currently the transmission rate required for UMTS is up to 2 Mbit / s and for EGPRS up to 384 kbit / s, which is not possible with this serial PC interface.
  • Serial interfaces of modern module processors e.g.
  • B synchronous serial controllers can certainly achieve the required data rates, but there is no suitable connection to a computer for these interfaces.
  • the required transfer rates can currently be from z.
  • B. USB Interfaces to computers are made possible, however, these are designed for complex operating systems and therefore the implementation is very complex for embedded microcontrollers or the like.
  • the object of the present invention is therefore to propose a method and a device for efficiently maximizing the transmission rate at a serial interface.
  • a wire-bound serial interface with an infrared data transmission protocol is used for the data transmission between a module in a communication network and an application processor.
  • the advantage is that a transmission rate of up to 4 Mbit / s can be achieved with little effort.
  • 1 shows the data transmission between a mobile radio module in a cellular communication network and an application processor.
  • WM wireless module
  • a time division multiple access (TDMA) and / or a code division multiple access (CDMA) module can be used as the mobile radio module be used.
  • TDMA time division multiple access
  • CDMA code division multiple access
  • SI uses an infrared data transmission protocol (IrDa protocol) as the transmission protocol.
  • IrDa protocol infrared data transmission protocol
  • the control of the infrared data transmission protocol can be contained in the software or hardware of the application processor or the module.
  • IrDA DATA Since 1994, IrDA DATA has been developing a standard for universal, wireless, 2-way data transport based on infrared light. IrDA technology is used in many electronic devices (desktops, notebooks, handheld PCs, printers, digital cameras, public terminals, pagers, PDAs, electronic books and other mobile devices).
  • the IrDa data protocol and the IrDa control protocol are currently proposed.
  • the IrDa data protocol is particularly suitable for relatively high data transmission over short distances. This point-to-point connection is limited to just a few centimeters. It is therefore suitable for digital cameras, handhelds, PDAs, printers, etc. With a product that supports infrared data transmission (IrDa), a transmission rate of up to 4Mbit / s can be achieved.
  • the IrDa control protocol is used for "in-room” solutions. This makes it possible to implement smaller solutions with small to medium transmission speed requirements, such as connecting a keyboard and / or a joystick.
  • Point-to-point or point-to-multipoint solutions are possible, such as B. a transmitter / receiver that operates a mouse and keyboard at the same time.
  • B a transmitter / receiver that operates a mouse and keyboard at the same time.
  • the solution according to the invention can be used as a serial
  • an asynchronous serial UART interface with an infrared data transmission protocol can be used and thus an embedded Microcontroller AP with a mobile radio module WM (Wireless
  • the infrared data transmission protocol can be integrated as software or hardware in the mobile radio module WM or microcontroller AP.
  • the use of an IrDa protocol according to the invention on a wired serial interface has the advantage that the IrDa protocol is easy to implement due to its simple structure.
  • the solution according to the invention thus prevents a complex implementation of a host-client concept (USB stack) between the mobile radio module WM and the application processor AP.
  • USB stack host-client concept
  • a galvanically isolated connection via the standardized IrDA IR diodes and e.g. A commercially available USB IrDA dongle for personal computers can be used especially for tests and approval measurements for the protection of the cell phone module.

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  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a particularly efficient and simple opportunity to transfer data between a module in a communication network and an applicational processor using a method and a device for the transfer of data via an interface between a module for a communication network and an application processor. The invention is characterised in that a wire-bound serial interface with an infrared data transfer protocol is used as a serial interface.

Description

Beschreibungdescription
Drahtgebundene serielle Schnittstelle mit Infrarot-DatenübertragungsprotokollWired serial interface with infrared data transmission protocol
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Datenübertragung über eine Schnittstelle zwischen einem Modul in einem Kommunikationsnetz und einem Applikationsprozessor.The invention relates to a method and a device for data transmission via an interface between a module in a communication network and an application processor.
Serielle Schnittstellen werden zur Steuerung und Datenübertragung zwischen einem Modul in einem Kommunikationsnetz und einem Applikationsprozessor, wie z. B. einem Mikrokontroller, Computer oder Ähnlichem benutzt. Solche seriellen Schnittstellen werden aufgrund der geringen Anzahl der notwendigen Steuerleitungen für die Steuerung und Datenübertragung bei Modulen bevorzugt . Ein Modul kann dabei z. B. ein Mobilfunkmodul in einem zellularen Kommunikationsnetz sein. Funktionalitäten, wie z. B. Telefonieren über die Freisprecheinrichtung, Auto-PCs mit ständigem Zugriff auf Internet oder Intranet, Fax,Serial interfaces are used for control and data transmission between a module in a communication network and an application processor, such as. B. a microcontroller, computer or the like is used. Such serial interfaces are preferred due to the small number of control lines required for control and data transmission in modules. A module can, for. B. be a cellular module in a cellular communication network. Functionalities such as B. calls via the hands-free system, car PCs with constant access to the Internet or intranet, fax,
Flottenmanagement, automatischer Notruf, Di gnosefunktionen, dynamische Navigation, ortsabhängige Informationsdienste, Onboard-Spiele und MP3-Downloads können mit einem solchen Mobilfunkmodul angeboten werden. Drahtlose zellulare Kommunikationsnetze, wie UMTS- oder EGPRS, überschreiten bei der Datenübertragung solcher Funktionalitäten die derzeit an der seriellen Schnittstelle bei Computern (PC's) realisierte Übertragungsrate von 230 kBit/s. Als Übertragungsprotokoll wird dabei das RS 232 - Protokoll verwendet. Derzeit beträgt die für UMTS benötigte Übertragungsrate bis zu 2 MBit/s und für EGPRS bis zu 384 kBit/s, was mit dieser seriellen PC- Schnittstelle nicht möglich ist. Serielle Schnittstellen der modernen Modul-Prozessoren z. B synchrone serielle Controller (SSC) können durchaus die geforderten Datenraten realisieren, jedoch fehlt es für diese Schnittstellen an einer geeigneten Anbindung an einen Computer. Die geforderten Übertragungsraten können zwar derzeit von z. B. USB- Schnittstellen an Computern ermöglicht werden, jedoch sind diese für aufwendige Betriebssysteme konzipiert und daher ist die Implementierung sehr aufwendig für eingebettete (embedded) Mikrocontroller oder Ähnliches.Fleet management, automatic emergency calls, diagnosis functions, dynamic navigation, location-based information services, on-board games and MP3 downloads can be offered with such a cell phone module. Wireless cellular communication networks, such as UMTS or EGPRS, exceed the transmission rate of 230 kBit / s currently realized on the serial interface of computers (PC's) when transferring such functionalities. The RS 232 protocol is used as the transmission protocol. Currently the transmission rate required for UMTS is up to 2 Mbit / s and for EGPRS up to 384 kbit / s, which is not possible with this serial PC interface. Serial interfaces of modern module processors e.g. B synchronous serial controllers (SSC) can certainly achieve the required data rates, but there is no suitable connection to a computer for these interfaces. The required transfer rates can currently be from z. B. USB Interfaces to computers are made possible, however, these are designed for complex operating systems and therefore the implementation is very complex for embedded microcontrollers or the like.
Aufgabe der vorliegenden Erfindung ist es deshalb ein Verfahren und eine Vorrichtung zur effizienten Maximierung der Ubertragungsrate an einer seriellen Schnittstelle vorzuschlagen .The object of the present invention is therefore to propose a method and a device for efficiently maximizing the transmission rate at a serial interface.
Die Aufgabe wird erfindungsgemäß durch die Gegenstände der unabhängigen Patentansprüche gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben. Für die Datenübertragung wird zwischen einem Modul in einem Kommunikationsnetz und einem Applikationsprozessor eine drahtgebundene serielle Schnittstelle mit einem Infrarot- Datenübertragungsprotokoll verwendet. Der Vorteil besteht darin, dass dabei mit geringem Aufwand eine Ubertragungsrate von derzeit bis zu 4 MBit/s erreicht werden kann.The object is achieved by the subject matter of the independent claims. Developments of the invention are specified in the subclaims. A wire-bound serial interface with an infrared data transmission protocol is used for the data transmission between a module in a communication network and an application processor. The advantage is that a transmission rate of up to 4 Mbit / s can be achieved with little effort.
Die Erfindung wird anhand eines in einer Figur dargestelltenThe invention is illustrated by means of a figure
Ausführungsbeispiels näher erläutert. Dabei zeigtEmbodiment explained in more detail. It shows
Figur 1 die Datenübertragung zwischen einem Mobilfunkmodul in einem zellularen Kommunikationsnetz und einem Applikationsprozessors .1 shows the data transmission between a mobile radio module in a cellular communication network and an application processor.
Figur 1 zeigt die Datenübertragung zwischen einem Mobilfunkmodul WM (WM = Wireless Modul) für ein zellulares Kommunikationsnetz, das mit einem zellularen Mobilfunknetz kommuniziert und einem Applikationsprozessors AP mit einer drahtgebundenen seriellen Schnittstelle SI. Als Mobilfunkmodul kann ein Time Division Multiple Access (TDMA) - und/oder ein Code Division Multiple Access (CDMA) - Modul verwendet werden. Diese drahtgebundene serielle SchnittstelleFIG. 1 shows the data transmission between a mobile radio module WM (WM = wireless module) for a cellular communication network that communicates with a cellular mobile radio network and an application processor AP with a wired serial interface SI. A time division multiple access (TDMA) and / or a code division multiple access (CDMA) module can be used as the mobile radio module be used. This wired serial interface
SI verwendet als Übertragungsprotokoll ein Infrarot-Datenübertragungsprotokoll (IrDa-Protokoll) . Die Steuerung des Infrarot-Datenübertragungsprotokoll kann in der Software oder Hardware des Applikationsprozessors bzw. des Moduls enthalten sein.SI uses an infrared data transmission protocol (IrDa protocol) as the transmission protocol. The control of the infrared data transmission protocol can be contained in the software or hardware of the application processor or the module.
Seit 1994, entwickelt IrDA DATA einen Standard für univsersellen, kabellosen, 2-Weg Datentransport auf infrarotem Licht basierend. IrDA Technologie wird in vielen elektronischen Geräten (Desktops, Notebooks, Handheld PCs, Drucker, Digitale Kameras, öffentliche Terminals, Pagers, PDAs, elektronische Bücher und andere mobile Geräte) genutzt. Zur Zeit werden das IrDa-Data-Protokoll und das IrDa-Control- Protokoll vorgeschlagen. Das IrDa-Data-Protokoll eignet sich besonders für eine relativ hohe Datenübertragung auf kurze Entfernung. Diese Punkt-zu-Punkt Verbindung ist auf nur wenige Zentimeter beschränkt. Sie ist damit geeignet für Digitalkameras, Handhelds, PDAs, Drucker usw. Bei einem Produkt, das die Infrarot-Datenübertragung (IrDa) unterstützt kann somit eine Ubertragungsrate bis zu 4Mbit/s erreicht werden.Since 1994, IrDA DATA has been developing a standard for universal, wireless, 2-way data transport based on infrared light. IrDA technology is used in many electronic devices (desktops, notebooks, handheld PCs, printers, digital cameras, public terminals, pagers, PDAs, electronic books and other mobile devices). The IrDa data protocol and the IrDa control protocol are currently proposed. The IrDa data protocol is particularly suitable for relatively high data transmission over short distances. This point-to-point connection is limited to just a few centimeters. It is therefore suitable for digital cameras, handhelds, PDAs, printers, etc. With a product that supports infrared data transmission (IrDa), a transmission rate of up to 4Mbit / s can be achieved.
Das IrDa-Control-Protokoll wird für "in-room" Lösungen verwendet. Damit sind kleinere Lösungen mit kleiner bis mittlerer Anforderung an Übertragungsgeschwindigkeit realisierbar, wie zum Beispiel ein Anschluss einer Tastatur und/oder eines Joysticks. Dabei sind Punkt-zu-Punkt oder Punkt-zu-Multipunkt Lösungen möglich, wie z. B. ein Sender/Empfänger der gleichzeitig eine Maus und eine Tastatur bedient . In der erfindungsgemäßen Lösung kann als serielleThe IrDa control protocol is used for "in-room" solutions. This makes it possible to implement smaller solutions with small to medium transmission speed requirements, such as connecting a keyboard and / or a joystick. Point-to-point or point-to-multipoint solutions are possible, such as B. a transmitter / receiver that operates a mouse and keyboard at the same time. In the solution according to the invention can be used as a serial
Schnittstelle SI eine asynchrone serielle UART Schnittstelle mit einem Infrarot-Datenübertragungsprotokoll verwendet werden und somit auf einfache Weise ein embedded Mikrokontroller AP mit einem Mobilfunkmodul WM (WirelessInterface SI an asynchronous serial UART interface with an infrared data transmission protocol can be used and thus an embedded Microcontroller AP with a mobile radio module WM (Wireless
Modul) verbunden werden. Das Infrarot-Datenübertragungsprotokoll kann dabei sowohl als Software oder Hardware in dem Mobilfunkmodul WM bzw. Mikrokontroller AP integriert sein. Die erfindungsgemäße Verwendung eines IrDa-Protokolls auf einer drahtgebundenen seriellen Schnittstelle hat den Vorteil, dass das IrDa-Protkoll aufgrund seiner einfachen Struktur einfach zu implementieren ist. Die erfindungsgemäße Lösung verhindert somit eine aufwendige Implementierung eines Host-Client-Konzepts (USB-Stacks) zwischen dem Mobilfunkmodul WM und des Applikationsprozessors AP.Module). The infrared data transmission protocol can be integrated as software or hardware in the mobile radio module WM or microcontroller AP. The use of an IrDa protocol according to the invention on a wired serial interface has the advantage that the IrDa protocol is easy to implement due to its simple structure. The solution according to the invention thus prevents a complex implementation of a host-client concept (USB stack) between the mobile radio module WM and the application processor AP.
Eine galvanisch getrennte Verbindung über die standardisierten IrDA IR-Dioden und z. B einem marktüblichen USB-IrDA-Dongle für Personal Computer kann speziell bei Tests und Zulassungsmessungen für den Schutz des Mobilfunkmoduls verwendet werden. A galvanically isolated connection via the standardized IrDA IR diodes and e.g. A commercially available USB IrDA dongle for personal computers can be used especially for tests and approval measurements for the protection of the cell phone module.

Claims

Patentansprüche claims
1. Verfahren zur Datenübertragung über eine Schnittstelle zwischen einem Modul für ein Kommunikationsnetz und einem Applikationsprozessor,1. Method for data transmission via an interface between a module for a communication network and an application processor,
dadurch gekennzeichnet,characterized,
dass als serielle Schnittstelle eine drahtgebundene serielle Schnittstelle mit einem Infrarot-Datenübertragungsprotokoll verwendet wird.that a wired serial interface with an infrared data transmission protocol is used as the serial interface.
2. Verfahren nach Anspruch 1,2. The method according to claim 1,
dadurch gekennzeichnet,characterized,
dass das Modul ein Mobilfunkmodul für ein zellulares Kommunikationsnetz ist.that the module is a mobile radio module for a cellular communication network.
3. Verfahren nach Anspruch 2 ,3. The method according to claim 2,
dadurch gekennzeichnet,characterized,
dass als Mobilfunkmodul ein Time Division Multiple Access (TDMA)- und/oder Code Division Multiple Access (CDMA) - Modul verwendet wird, das in ein Mobilfunknetz einbuchbar ist.that a time division multiple access (TDMA) and / or code division multiple access (CDMA) module is used as the mobile radio module and can be booked into a mobile radio network.
4. Verfahren nach einem der vorhergehenden Ansprüche,4. The method according to any one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass als drahtgebundene serielle Schnittstelle eine asynchrone serielle UART-Schnittsteile verwendet wird.that an asynchronous serial UART interface is used as the wired serial interface.
5. Verfahren nach einem der vorhergehenden Ansprüche,5. The method according to any one of the preceding claims,
dadurch gekennzeichnet, dass die Steuerung des Infrarot-Datenübertragungsprotokolls in der Software oder Hardware des Applikationsprozessors enthalten ist.characterized, that the control of the infrared data transmission protocol is contained in the software or hardware of the application processor.
6. Verfahren nach einem der vorhergehenden Ansprüche,6. The method according to any one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass die Steuerung des Infrarot-Datenübertragungsprotokolls in der Software oder Hardware des Moduls enthalten ist.that the control of the infrared data transmission protocol is included in the software or hardware of the module.
7. Verfahren nach einem der vorhergehenden Ansprüche,7. The method according to any one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass der Applikationsprozessor ein eingebetteter Mikrokontroller und/oder ein Computer ist.that the application processor is an embedded microcontroller and / or a computer.
8. Vorrichtung zur Datenübertragung über eine Schnittstelle zwischen einem Modul für ein Kommunikationsnetz und einem Applikationsprozessor,8. Device for data transmission via an interface between a module for a communication network and an application processor,
wobei zur Datenübertragung eine drahtgebundene serielle Schnittstelle mit einem Infrarot-Datenübertragungsprotokoll vorgesehen ist.wherein a wire-bound serial interface with an infrared data transmission protocol is provided for data transmission.
9. Vorrichtung nach Anspruch 8 ,9. The device according to claim 8,
dadurch gekennzeichnet,characterized,
dass als Modul ein Mobilfunkmodul für ein zellulares Kommunikationsnetz vorgesehen ist.that a cell phone module for a cellular communication network is provided as a module.
10.Vorrichtung nach einem der vorhergehenden Ansprüche,10.Device according to one of the preceding claims,
dadurch gekennzeichnet, dass die Vorrichtung seitens des Applikationsprozessors und/oder Moduls angeordnet ist.characterized, that the device is arranged on the part of the application processor and / or module.
11.Vorrichtung nach einem der vorhergehenden Ansprüche,11.Device according to one of the preceding claims,
dadurch gekennzeichnet,characterized,
dass die Vorrichtung eine Schnittstelle zum Anschluss am Computer oder Server aufweist. that the device has an interface for connection to the computer or server.
PCT/EP2004/001274 2003-06-27 2004-02-11 Wire-bound serial interface with infrared data transfer protocol WO2005002259A1 (en)

Applications Claiming Priority (2)

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DE10329146A DE10329146A1 (en) 2003-06-27 2003-06-27 Wired serial interface with infrared data transmission protocol
DE10329146.6 2003-06-27

Publications (1)

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WO2005002259A1 true WO2005002259A1 (en) 2005-01-06

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WO (1) WO2005002259A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898388A2 (en) * 1997-08-20 1999-02-24 Nokia Mobile Phones Ltd. Portable electronic devices using infrared data transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898388A2 (en) * 1997-08-20 1999-02-24 Nokia Mobile Phones Ltd. Portable electronic devices using infrared data transmission

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MATS ANDERSSON: "Implementation and integration of the IrDA Data Protocols into the Telelogic Tau TTCN Suite", 8 May 2001 (2001-05-08), pages 1 - 43, XP002304955, ISSN: 1402-1617, Retrieved from the Internet <URL:http://epubl.luth.se/1402-1617/2001/058/LTU-EX-01058-SE.pdf> [retrieved on 20041110] *

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