DE10135932A1 - Method for packet-oriented transmission of data between a mobile telephone and transmitter-receiver station uses a conversion device in the mobile telephone to convert its data as packet-oriented data for use in a network. - Google Patents

Abstract

Method for the packet-oriented transmission of data between at least one mobile radio terminal (1) and a receiving and transmitting station (2), in which the data to be transmitted from the mobile terminal (1) to the receiving and transmitting station (2) by means of a Conversion device (5) of the mobile radio terminal (1) can be converted in a packet-oriented manner, the receiving and transmitting station (2) being connected to a packet-oriented data network (4), in particular the Internet, via a server device (3).

Description

The invention relates to a method for packet-oriented Transfer of data between at least one mobile phone Terminal and a receiving and transmitting station after the The preamble of claim 1 also relates to the invention a mobile radio terminal and a receiving and transmitting station to carry out such a method.

Communication links for the transmission of voice and Data in the fixed network and mobile network were in the Past built up connection-oriented. This is for one Signal transmission between two communication terminals only one physical line (landline) and one Channel within a specified frequency range of one Air interface (cellular) provided for the Data connection are reserved. This is also called line-oriented transmission, static routing (circuit switching) or circuit switching.

With the advent of packet-oriented data networks (packetswitching), such as the Internet, is one in the Relative to line-oriented telecommunications affordable communication. This is because especially the efficient capacity utilization of a Connection, because in contrast to circuit switching that packetswitching not for the entire duration of the transfer physical transmission medium occupied. The too Transporting data are divided into individual data packets, whereby each data packet receives an address code that the recipient of transmission. The individual data packets are then transmitted independently of each other - you can even use different transmission paths. The data packets are over sections from one network node to the next forwarded and cached in this before it transferred to the addressee. With packet switching the transmission bandwidth is requested as required and can simultaneously connect multiple logical connections to the Will be provided. The principle of packet switching is defined in various standards, the best known Standard is described in ITU-T recommendation x.25.

Each data packet comes with an address information field (Header) that the entire mediation-relevant Contains information. This includes address information from Recipient and sender, information on sending, routing Information and notes to the recipient. At the recipient the individual data packets become the original Data stream merged. With this transmission method each data packet is transmitted individually in a loose order and from the received station back to a complete one Message composed. It can happen that the Order of the received data packets due to Data packet loss, "overtaking" of data packets and unwanted Duplication is incomplete and confused. This requires special measures in protocols that are also included in the headers have to.

Because of the low costs, the telephony enjoys the Internet (Internet telephony) growing in popularity. in the Software solutions therefore appear increasingly on the Market that use the internet protocol to compressed Send and receive voice in near real time. As are packet-oriented transmission methods for speech for example VoF (Voice over Frame Relay) or VoIP (Voice over IP). VoIP in particular is becoming an essential one Predicted importance for future voice communication.

In contrast, dialing is predominantly used in the mobile radio sector of a mobile user into the internet via the radio base stations based on circuit switching (Base Transiver Station) of public, mobile Telephony network completed. So that both the technical and also accepted the tariff boundary conditions of these networks.

When transferring data over to circuit switching based base stations of the mobile telephony network in the Internet based on dynamic packet switching and conversely the problem arises that the data on the Transition point with regard to the connection always to the Protocol of the transition network using extensive Conversion must be adjusted. Usually this leads to Data rate losses, which is why the user may experience high losses Have to put up with waiting times.

The data rate can be increased using HSCSD (High Enable speed circuit-switched data). At this also circuit-switching data connection that is on the GSM Standard builds, the data rate increases by multiple GSM data channels are bundled, which are then multiples of their capacity. Due to the Channel bundling, however, multiply depending on the Number of data channels the connection charges.

Another way to increase The standard GPRS (General Packet Radio Service) - also based on GSM technology Standard in which the data is transmitted in a packet-oriented manner become. With this standard, the whole, one Cellular bandwidth available for cell phone Participants divided among themselves. Are however many mobile subscribers within a cell sector, so there is one for each individual participant theoretically achievable values reduced bandwidth and thus Transmission speed available.

The invention is therefore based on the object of a method for data connection with high transmission speed between a mobile terminal and a packet-oriented Data network and one to carry out this method indicate appropriate arrangement.

This task is accomplished by a method with the characteristics of Claim 1 and by a mobile terminal Claim 11 or by a receiving and transmitting station solved according to claim 12. Preferred embodiments of the Invention result from the dependent claims.

The idea on which the invention is based consists in one Connection of the receiving and transmitting station via a server Facility with the packet-oriented data network, in particular Internet. Data from the Internet will continue to be used as Data packets via an air interface from the station transmit the mobile terminal. Acting on this data It is primarily HTML pages that the user of the Has requested the terminal. Furthermore, video and Voice data are transmitted to the terminal.

The mobile radio terminal also sends the same Packet-oriented data to the receiving and sending station. there the data generated in the terminal device is in accordance with the packet-oriented data network used protocol. So if a connection to the Internet is established, so the data packets are generated according to TCP / IP. These data packets are then sent to the station and via the server Transfer the facility to the Internet.

In a preferred embodiment, the data packets are dynamically via different channels of the air interface transfer. Several channels can be bundled, which increases the bandwidth for data transmission Is available and ultimately an increased data rate results. Especially when transmitting video data an increased data rate can be made available.

In a further preferred embodiment of the method, the data packets are transmitted in accordance with the UMTS transmission standard. UMTS is a collective term for the third generation (3G) mobile radio network, which works with the radio standard IMT- 2000 . The UMTS transmission standard provides for the coding method TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access) and CDMA (Code Division Multiple Access). Since there is still no uniform standard for channel coding, all three channel codes are supported in this version. The data packets are preferably forwarded to the Internet based on TCP / IP and using the broadband TDMA / FDMA / CDMA.

In contrast to the conventional circuit switching with GSM the receiving and transmitting station does not require any Search algorithm involving different networks to find one Mobile terminal to which a connection is to be set up localize spatially. Due to the package-oriented Transmission, there is no signaling from the transmitter to Receiver, in order to maintain the connection even if the user of a mobile radio terminal has the radio radius one station and another entry. This means that there is no longer any central tax intelligence needed.

In a preferred embodiment, one transmits instead Signaling device within the mobile radio terminal to identify the end device continuously Registration data from at least one station in one Reception area (radius) of the mobile radio terminal received and stored in a routing table. Every station that receives these signals, updates the respective one Routing table to get new information about a new potential Users to consider. In addition to neighboring Receiving and sending stations sent tags to to make the new user known. Be from one Mobile terminal data sent, this data is collected together sent with an authentication of the terminal, without establish a connection to a station beforehand. All stations, who receive this data by radio, evaluate it the destination address and forward the data.

However, there is a connection to the mobile radio terminal is set up, this terminal is built with the help of the respective Station reached because the station is continuously using the received identification signals of the terminal your Update routing tables. The data sent will be as long transported through the internet to a station ("Base station") is reached, which then sends the data to the terminal transfers. The routing tables are preferably in short intervals updated, reducing the probability increases that the mobile phone user of at least one Station is reached, so that the same principle as in the fixed network Internet network can be applied.

Through a worldwide unique authentication of the Mobile terminal can also charge a fee easily will be realized. Each station is the number of forwarded packets and packet types count and this information a communication service provider of the user hand off.

The invention will now be described with reference to Embodiments explained in connection with the drawings. This show in:

Fig. 1 shows an embodiment of an arrangement of a mobile radio terminal and a transmitting and receiving station according to the invention, wherein the transmitting and receiving station is connected to a packet-oriented data network,

Fig. 2 shows an embodiment of an arrangement for establishing a connection between two mobile terminals,

Fig. 3 shows an embodiment of an arrangement for establishing a connection between the mobile terminal and the packet-oriented data network according to the prior art,

Fig. 4 shows an embodiment of a connection of a mobile radio terminal with a plurality of transmitting and receiving stations arranged within a reception area of the mobile radio terminal

Fig. 5 is an illustration of an ISO / OSI reference model according to the prior art and the invention.

In Fig. 1 is a mobile assembly consisting represented from a mobile terminal 1 and a receiving and transmitting station 2. This station 2 is connected to a packet-oriented data network 4 via a server device 3 . Within such a network 4 , data packet switching (packet switching) takes place, in which data is transmitted packet by packet over sections from one network node to the next. Each data packet is provided with a header that contains all of the information relevant to switching. This information includes, in particular, address information from the recipient and sender as well as information on sending it to the respective recipient. The individual data packets are then reassembled at the receiver to form the original data stream. In this method, each data packet is therefore transmitted individually, and the received data packets are put together again by a conversion device 5 at the receiver to form a complete data stream.

In the case of the packet-oriented data network 4 , this version is the Internet. The converting device 5 arranged within the mobile radio terminal 1 divides a data stream generated and to be sent within the terminal 1 into a plurality of data packets and provides each data packet with a header which contains information relevant to switching. The creation of the data packets and the addition of redundant information are preferably based on the same protocol, according to which the data packets are also created within the packet-oriented data network 4 .

Since, as already mentioned, the Internet is used in this example, the data packets within the conversion device 5 are generated according to the TCP / IP protocol. In this way, both the standardization of the principles of the "mobile" and "fixed" Internet and the flexibility with regard to the interconnection in the mobile radio network are achieved. This makes it possible to use an already established and widespread protocol and to go a step further in the convergence of the mobile and fixed internet world and to get all the advantages and flexibility of the Internet for mobile use.

In principle, it is irrelevant from which data the data stream is composed. The data stream can be composed of text and / or voice and / or video information. The mobile radio terminal 1 and the transmitting and receiving station 2 each contain transmission devices 6 for channel coding of the data packets. The TDMA and / or FDMA and / or CDMA methods are preferably used here, which enable broadband signal transmission and enable even reliable transmission even under unfavorable channel models (frequency drops, fading, multi-path reception). Another advantage of these channel encodings is that even at high speeds of the mobile radio terminal 1 there is still a secure readiness to send and receive.

In a further advantageous embodiment, several Modulation techniques, especially quadrature phase shift Keying (QPSK) and Quadrature Amplitude Modulation (QAM), especially 16-QAM, 32-QAM and 64-QAM. So that can for transmission to many physical media (terrestrial Transmission, satellite, fiber optic, two-wire line, Coaxial line and microwave transmission) can be used.

In a preferred embodiment, a signaling device 7 continuously transmits registration data within the terminal 1 to identify the terminal, which is received by the station 2 in a reception area (radius) of the terminal 1 and is stored in a routing table 8 . Each station that receives this signal updates the respective routing table 8 . If data is sent from the terminal 1 , this data is sent together with an authentication of the terminal 1 without first establishing a connection to a station 2 . All stations that receive this data evaluate the destination address and forward the data.

Fig. 2 shows a diagram for establishing a data connection between two mobile devices 1 and 1 '. These terminals are located in the transmission and reception area of a reception and transmission station 2 and 2 '. The two stations are connected via server devices 3 and 3 'to the packet-oriented data network, e.g. B. the Internet connected. When considering the ISO-OSI reference model, layer 1 is based on the physical medium air and layer 2 on the channel coding TDMA-FDMA-CDMA (e.g. in UMTS). On layers 3 and 4 , the stations use the TCP / IP protocol.

When establishing a connection between the mobile radio terminal 1 and the terminal 1 ', the station 2 receives broadband radio signals from the terminal 1 and transmits the information received, based on the TCP / IP protocol and using the broadband TDMA / FDMA / CDMA transmission method , on the Internet. These data are received via the server device 3 'of the station 2 ' and sent to the terminal 1 'in broadband.

In a further embodiment of the method, a connection is established to a fixed network terminal 9 , which is connected to the Internet via a server device 3 ″. In this way, calls between mobile and stationary terminals are also established simply and inexpensively.

Fig. 3 shows an arrangement for producing a compound of a mobile radio terminal 1 to the packet-oriented data network, such as the Internet, according to the prior art. A connection between the terminal 1 and the transmitting and receiving station 2 is established by means of conventional circuit switching via the air interface. This station 2 is connected to further stations 2 ′ and 2 ″ via a conventional mobile radio network structure 10 , especially via mobile switching centers (MSC) (not shown) in this network. This network 10 is connected to the Internet via a gateway 11 Mobile radio users have a connection to the Internet, so transmitted and received data are transported via this gateway 11 .

These data usually include HTML pages that are either displayed directly on the mobile radio terminal 1 or on a PDA (Personal Digital Assistant) that is connected to the terminal 1 , for example, via an infrared interface. The arrangement shown also serves for the transmission of WAP pages (Wireless Application Protocol) - that is, Internet pages generated especially for mobile devices.

FIG. 4 shows a further embodiment for establishing a connection between a mobile radio terminal 1 and the packet-oriented data network 4 , e.g. B. Internet, according to the inventive concept. In this arrangement, there are a plurality of receiving and transmitting stations 2 , 2 'and 2 "in the receiving range of the mobile device 1. Since the data are received and sent as packets in a packet-oriented manner, they can each be distributed from these stations to the terminal 1 , and vice versa Different data packets can be sent from the terminal 1 to these stations.

This method is particularly advantageous when, for. B. station 2 is heavily overloaded due to several simultaneous data accesses, while the other stations 2 'and 2 still have free transmission capacity. In this case, depending on the load, the data packets are increasingly transmitted to these stations 2 'and 2 ", and no or only a small number of data packets are transmitted to the heavily used station 2. If the station 2 is even fully utilized, then the data packets are transmitted exclusively to the two further stations 2 ', 2 ", and in return only these two stations send the data packets to the terminal 1 .

The ISO / OSI reference model according to the prior art ( FIG. 5a) and according to the invention ( FIG. 5b) is compared in FIG. 5. The ISO / OSI reference model of the international standardization organization was designed as the basis for the formation of communication standards. The aim is communication in a heterogeneous environment, for which, in addition to the actual application data, additional structural and procedural information is required, which are defined as OSI protocols. The reference models shown in FIG. 5 differ from one another in layers 3 and 4 and in layer 2 .

While two different reference models are used in accordance with the prior art, the embodiment of the invention merges into only one reference model which is uniform for mobile radio networks and fixed networks. The current coupling between different protocols of different layers - circuit switching (layers 3 and 4 ) with TDMA (layer 2 ) and with the fixed network (layer 1 ) or circuit switching (layers 4 and 3 ) with TDMA / FDMA (layer 2 ) and with mobile radio (layer 1 ) - is thus broken up. As shown in FIG. 5b, packet-oriented protocols are used on layers 3 and 4 and a combination of TDMA-FDMA-CDMA is used on layer 2, as a result of which the previous separation of fixed and mobile network is dissolved.

The implementation of the invention is not based on the above described examples limited, but also in a variety of modifications possible in the context of professional action lie.

Claims (10)

1. A method for packet-oriented transmission of data between at least one mobile radio terminal ( 1 ) and a receiving and transmitting station ( 2 ), in which the data to be transmitted from the mobile terminal ( 1 ) to the receiving and transmitting station ( 2 ) can be converted in a packet-oriented manner by means of a conversion device ( 5 ) of the mobile radio terminal ( 1 ), characterized in that the receiving and transmitting station ( 2 ) is connected directly to a packet-oriented data network ( 4 ), in particular the Internet, via a server device ( 3 ) and data requested by a mobile subscriber from this packet-oriented data network ( 4 ) are transmitted as data packets via the air interface from a transmitting device ( 6 ) directly to the mobile radio terminal ( 1 ). 2. The method according to any one of the preceding claims, characterized in that the data packets within the conversion device ( 5 ) are created on the basis of a TCP / IP protocol. 3. The method according to any one of the preceding claims, characterized in that a signaling device ( 7 ) within the mobile radio terminal ( 1 ) continuously transmits registration data for identification of the mobile radio terminal ( 1 ) by at least one receiving and transmitting station ( 2 ) received in a reception area of the mobile radio terminal ( 1 ) and stored in a routing table ( 8 ). 4. The method according to claim 1, characterized, that the data packets are dynamic across different channels the air interface. 5. The method according to any one of the preceding claims, characterized, that the data packets according to the UMTS transmission standard are transmitted, broadband TDMA and / or FDMA and / or CDMA coding methods are used. 6. The method according to any one of the preceding claims, characterized in that the data packets between the mobile radio terminal ( 1 ) and at least two transmitting and receiving stations ( 2 ) located within the reception range of the mobile radio terminal ( 1 ) are transmitted in parallel. 7. The method as claimed in one of the preceding claims, characterized in that the data packets are distributed between the mobile radio terminal ( 1 ) and at least two transmitting and receiving stations ( 2 ) located within the reception range of the mobile radio terminal ( 1 ). 8. The method according to claim 7, characterized in that a selection of transmitting and receiving stations ( 2 ) is made as a function of an identifier with regard to their utilization. 9. receiving and transmitting station for performing the method according to any one of the preceding claims, characterized by a server device ( 3 ) for establishing a direct connection to a packet-oriented data network ( 4 ), in particular the Internet. 10. receiving and transmitting station according to claim 9, characterized by a storage device for storing received registration data relating to the identification of the mobile radio terminal in a routing table ( 8 ).