DE10145135A1 - Terminal for a radio network and communication system for information data with such a terminal - Google Patents

Abstract

A terminal for a cellular radio telephone network has modules (2, 5) for handling an application protocol and DECT circuits (13, 14) for wireless data communication for connection to a local telephone network (30) which are connected to the modules (2, 5 ) are connected to the handling of the protocol.

Description

The invention relates to terminals for radio networks, in particular cellular radio networks or cellular networks provided for this purpose are to perform data exchange applications, for example those that work with a wireless WAP application protocol BEITEN.

A terminal with WAP functionality enables a Radio network, for example the GSM network, access to an inter to take the net side, for example a remote purchase or Perform online shopping, query a database or to use another application.

With a company you can also access a local one Take network, for example of the type of intranet that connected to the cellular radio telephone network via a gateway is. However, such an access mode is not complete satisfactory because he has a public cellular network used, therefore with the corresponding communication costs and is subject to limited confidentiality offers transferred data.

The object of the invention is to overcome these shortcomings sided and a more versatile and reliable communica tion.

For this reason, the invention first relates to an endge advises for a cellular radio network that has facilities at hand  have an application log. According to the Erfin is provided that there is wireless transceiver data for connection to a local tele Has network, which to the facilities for handling of the protocol are connected.

The invention further relates to a communication system for information data, which has the following:

• - a local telephone network with wireless connections,
• - an information network,
• - a gateway connected to the two networks, and
• - At least one terminal that has facilities for handling an application protocol and wireless transmission / emp traps for data to connect to a lo Kalen telephone network, which to the facilities for Handling the protocol are connected.

The invention is set out below, also with respect to others Features and advantages, based on the description of exec examples and with reference to the enclosed one Zige figure of the drawing described in more detail. The drawing shows schematically an inventive communication system for information data that a terminal device has over radio networks, here GSM and DECT, with remotely located Servers is connected.

The terminal shown is a portable telephone with a housing 1 , which accommodates a removable additional part 11 . The housing 1 contains a function module 2 for navigation or surfing the Internet, which communicates with a function module 3 for the management of connections to the GSM network 20 via radio transmission / reception circuits 4 . The radio function module 2 also communicates with a function module 5 for the management of a wire connection 12 , which connects it to a function module 13 for radio connections, which is assigned to radio circuits 14 . These are included in the additional part 11 , function in a similar manner to the function module 3 and the radio circuits 4 , but are provided for a local radio network, here DECT with a base 30 .

The connection 12 , which has a connector for connecting the spare part 11 to the housing 1 , and the functional modules and circuits with the reference numerals 5 , 13 and 14 , which use this connection 12 , are here in accordance with the GPRS standard (General Packet Radio Service) trained.

The function module 13 , which manages the connection 12 , provides for the data transport through the DECT network and a data exchange for this purpose with the circuits 14 in accordance with the classic DECT standard.

The function module 13 is formed by a logic module which uses a processor which is accommodated in the additional part 11 and which makes it possible to use the WAP protocol over the DECT network.

A keyboard 8 and a display 9 are connected to the function module 2 for navigation or surfing. A connection function module 6 is provided here to connect the function modules 3 and 5 to form a local gateway for connecting the GSM network 20 to the DECT network 30 .

The GSM network 20 is connected to a gateway 21 for access to a data processing device or a data server 23 , via an information network 22 or the Internet.

The DECT base 30 masters the Internet protocol and offers the same local access options via a gateway 31 for access to a local intranet 32 to which a data server 33 is connected. The base 30 can also be connected to the public telephone network (RTC) or any other public network and an external gateway, which is generally designated by the reference numeral 21 .

Gateways 21 and 31 , networks 22 and 32, and servers 23 and 33 are provided here to handle the application protocol WAP for wireless communication.

The function of the terminal shown is in below explained further details.

The user of the device shown, for two types of use, can see and use the server 23 via the GSM network 20 with a call, or any other equivalent system for data transmission, and with this according to a WAP protocol for a specific one Enter into a dialogue.

He can reach and use the local server 33 in the same way, specifically via the function modules and circuits which are designated by the reference numerals 5 , 12 , 13 and 14 , when the terminal is in the reception and transmission range of the base 30 , however without GSM fee calculation.

As stated above, it can be provided that the base 30 is connected to a telephone network (GSM, RTC) or an external information network (Internet 22 ), which enables the terminal to access the local server 33 even if it is outside the base 30 radio range.

The function module 13 generates GPRS data packets that originate from the navigation module 2 via the connection 12 in order to transmit them via the terminal in a GPRS transport frame via the DECT network. The base 30 has similar circuits which unpack or extract the data, where in this way they eliminate specific transmission signals for DECT and GPRS transport, and transmit them to the gateway 31 , which adapts them to the IP or Internet format ,

The same transformations are carried out with the data that are transmitted in the opposite direction, namely from the local server 33 to the gateway 31 and the function modules for the DECT radio link 13 and finally the navigation module 2 of the terminal.

The function module 2 for navigation or surfing, which is designed for two operating modes, thus has the choice between two radio networks which work in parallel with one another in order to reach a server and to communicate with it in accordance with the WAP protocol.

The function module 6 for communication also makes it possible to connect two DECT networks via the GSM network 20 via two similar terminal devices, as are shown here. This makes it possible to integrate a large number of local servers 33 in a single functional arrangement, which are distributed in two local area networks 32 , which are distant from one another or impossible to connect directly to one another.

Claims (6)

1. A terminal for a cellular radio network which has devices ( 2 , 5 ) for handling an application protocol, characterized in that it has wireless transceivers ( 13 , 14 ) for data for connection to a local telephone network ( 30 ), which are connected to the devices ( 2 , 5 ) for handling the protocol. 2. A terminal according to claim 1, characterized by a removable accessory (11), the de- wireless Sen / receiving devices (13, 14), and Verbin-making means (12) to the transmitting / Empfangseinrich obligations (13, 14) to connect with the devices ( 2 , 5 ) for handling the protocol. 3. Terminal according to claim 1 or 2, characterized in that the transmitting / receiving devices ( 13 , 14 ) are DECT devices. 4. Terminal according to one of claims 1 to 3, characterized in that the devices ( 2 , 5 ) for handling the protocol are GPRS devices. 5. Terminal according to one of claims 1 to 4, characterized in that a device ( 6 ) for the communication of data between the local telephone network ( 30 ) and the cellular radio telephone network ( 20 ) is provided. 6. Communication system for information data, which has the following:
a local telephone network ( 30 ) with wireless connections,
an information network ( 32 ),
a gateway ( 31 ) which connects the two networks ( 30 , 32 ) to one another, and
at least one terminal, which has devices ( 2 , 5 ) for handling an application protocol and wireless transmission / reception devices ( 13 , 14 ) for data for connection to a local telephone network ( 30 ) which are connected to the devices ( 2 , 5 ) for the handling of the protocol are connected.