DE9413743U1 - Transceiver for wireless data transmission according to the DECT standard - Google Patents
Transceiver for wireless data transmission according to the DECT standardInfo
- Publication number
- DE9413743U1 DE9413743U1 DE9413743U DE9413743U DE9413743U1 DE 9413743 U1 DE9413743 U1 DE 9413743U1 DE 9413743 U DE9413743 U DE 9413743U DE 9413743 U DE9413743 U DE 9413743U DE 9413743 U1 DE9413743 U1 DE 9413743U1
- Authority
- DE
- Germany
- Prior art keywords
- data transmission
- transceiver
- wireless data
- transmitting
- dect standard
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims description 11
- 244000309464 bull Species 0.000 description 7
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1143—Bidirectional transmission
-
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transceivers (AREA)
Description
&Bgr; 15 9 9 'β 15 9 9 '
Bes ehreibungBes berschrift
Die Erfindung betrifft eine Sende-Empfangseinrichtung nach dem Oberbegriff des Schutzanspruchs 1.The invention relates to a transmitting-receiving device according to the preamble of claim 1.
DECT (Digital European Cordless Telecommunication) ist der neue Standard für die schnurlose Datenübertragung zwischen einer Basisstation und einem Schnurlos-Telefon oder allgemein einem Telekommunikationsendgerät. Zur Datenübertragung zwischen diesen beiden Geräten wird ein Funkkanal im Gigahertz-Bereich verwendet. Zur Realisierung dieses Funkkanals sind aufwendige HF-Sende- und -Empfangseinrichtungen notwendig.DECT (Digital European Cordless Telecommunication) is the new standard for cordless data transmission between a base station and a cordless telephone or generally a telecommunications terminal. A radio channel in the gigahertz range is used to transmit data between these two devices. Complex RF transmission and reception devices are required to implement this radio channel.
Der Erfindung liegt die Aufgabe zugrunde, diesen Aufwand zu reduzieren.The invention is based on the task of reducing this effort.
Diese Aufgabe wird erfindungsgemäß durch die im Schutzanspruch angegebenen Merkmale gelöst.This object is achieved according to the invention by the features specified in the protection claim.
Bei der Verwendung der erfindungsgemäßen Infrarot-Sende-Empfangseinrichtung können die vorhandenen Komponenten aus DECT-Schnurlostelefonen verwendet werden, die aufgrund der Massenfertigung kostengünstig zur Verfügung stehen. Bei den Schnurlos-Endgeräten tritt eine Kostenreduzierung ein, da daß sonst übliche Hochfrequenzteil durch eine einfache Infrarot-Sende-Empfangseinrichtung ersetzt wird.When using the infrared transceiver device according to the invention, the existing components from DECT cordless telephones can be used, which are available inexpensively due to mass production. The cordless terminals are less expensive because the otherwise usual high-frequency part is replaced by a simple infrared transceiver device.
Bei einem Einsatz der erfindungsgemäßen Sende-Empfangsein-,30
richtung tritt keine Beeinflussung von HF-sensitiven Geräten, beispielsweise Hörgeräten auf, da die Übertragung ausschließlich
im Infrarotbereich erfolgt. Weiter ist der Einsatz in einer HF-problematischen Umgebung ohne Beeinträchtigung der
Übertragungsqualität möglich.
35When using the transmitting/receiving device according to the invention, there is no influence on RF-sensitive devices, such as hearing aids, since the transmission takes place exclusively in the infrared range. Furthermore, use in an RF-problematic environment is possible without affecting the transmission quality.
35
Eine Begrenzung des Übertragungsbereiches auf einen Raum bzw. speziell definierte Bereiche ist einfach möglich.It is easy to limit the transmission range to a room or specifically defined areas.
G 1 5 9 9G 1 5 9 9
Zwischen der Sende- und der Empfangseinrichtung ist keine optische Entkopplung der Sende- bzw. Empfangsdiode notwendig, da zeitversetzt gesendet und empfangen wird. 5No optical decoupling of the transmitting or receiving diode is necessary between the transmitting and receiving devices, since transmission and reception are delayed. 5
Durch Verwendung der vorhandenen DECT-Protokolle ist eine einfache gesicherte Datenübertragung möglich, ohne das die Datenrate durch zusätzliche Protokollinformationen reduziert wird. Weiter ist durch das DECT-TDMA-Verfahren bereits eine hohe Abhörsicherheit gewährleistet, die durch eine zusätzliche Verschlüsselung nach dem DECT-Standard noch erhöht werden kann.By using the existing DECT protocols, a simple, secure data transmission is possible without the data rate being reduced by additional protocol information. Furthermore, the DECT-TDMA process already ensures a high level of security against eavesdropping, which can be further increased by additional encryption according to the DECT standard.
Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels beschrieben.In the following, the invention is described using an embodiment shown in the drawing.
In der einzigen FIG ist eine Steuereinheit ST nach dem DECT-Standard dargestellt. Diese Steuereinheit ST ist ein Burst-Mode-Controller, der in einem Empfangszweig eine Burstdeco-0 dierung und in einem Sendezweig eine Bursterzeugung aufweist.The only FIG shows a control unit ST according to the DECT standard. This control unit ST is a burst mode controller, which has a burst decoding in a receiving branch and a burst generation in a transmitting branch.
Diese Teile sind für die Erfindung von untergeordneter Bedeutung und in der FIG nicht dargestellt.These parts are of minor importance for the invention and are not shown in the figure.
Eine Empfangseinrichtung ER gibt Empfangsdaten ED an die Steuereinheit ST, die wiederum Sendedaten SD an eine Sendeeinrichtung SR gibt. Erfindungsgemäß senden bzw. empfangen . die Sende-Empfangseinrichtung SR, ER im Infrarotbereich. Hierzu weisen die Empfangseinrichtung ER eine Infrarot-Emp- . fangsdiode IE und die Sendeeinrichtung SR eine Infrarot-Sen-0 dediode IS auf.A receiving device ER sends received data ED to the control unit ST, which in turn sends transmitted data SD to a transmitting device SR. According to the invention, the transmitting-receiving device SR, ER sends and receives in the infrared range. For this purpose, the receiving device ER has an infrared receiving diode IE and the transmitting device SR has an infrared transmitting diode IS.
Die in der FIG dargestellte Sende-Empfangseinrichtung SR, ER ist beispielsweise in einer Basisstation angeordnet. Die Sende-Empfangseinrichtung eines damit verbundenen mobilen oder stationären Telekommunikationsendgerätes ist analog &Igr;&igr;&iacgr;&bgr;^&mgr; aufgebaut. Die Datenübertragung zwischen der Basisstation undThe transmitting-receiving device SR, ER shown in the FIG is arranged, for example, in a base station. The transmitting-receiving device of a mobile or stationary telecommunications terminal connected to it is constructed analogously to &Igr;&igr;&iacgr;&bgr;^&mgr; . The data transmission between the base station and
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• ··
••
••
••
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dem Endgerät wird erfindungsgemäß im Infrarotbereich durchgeführt .According to the invention, the terminal device is operated in the infrared range.
Claims (1)
Schut zanspruch4
Protection claim
dadurch gekennzeichnet,Transceiver device (SR, ER) for wireless data transmission between a base station and a telecommunications terminal according to the DECT standard,
characterized,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9413743U DE9413743U1 (en) | 1994-08-25 | 1994-08-25 | Transceiver for wireless data transmission according to the DECT standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9413743U DE9413743U1 (en) | 1994-08-25 | 1994-08-25 | Transceiver for wireless data transmission according to the DECT standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9413743U1 true DE9413743U1 (en) | 1995-01-26 |
Family
ID=6912842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9413743U Expired - Lifetime DE9413743U1 (en) | 1994-08-25 | 1994-08-25 | Transceiver for wireless data transmission according to the DECT standard |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9413743U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4433896C1 (en) * | 1994-09-22 | 1995-11-09 | Siemens Ag | Reducing radio transmissions in pico-cellular wireless communications |
-
1994
- 1994-08-25 DE DE9413743U patent/DE9413743U1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4433896C1 (en) * | 1994-09-22 | 1995-11-09 | Siemens Ag | Reducing radio transmissions in pico-cellular wireless communications |
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