FI118916B - A data transmission system - Google Patents

Description

118916

The present invention relates to telecommunication and data transmission. More particularly, the present invention relates to a data transmission system for transmitting information / data over a cellular or cellular radio (PLMN) network between a terminal device such as a mobile station or a pocket PC or laptop connected to a PLMN network and a resource server which is a PLMN network. and / or in a data transmission connection preferably with a packet switched data network, such as LAN, WAN, Intranet, X.25, IP and the like.

In general, with respect to PLMN communications, wireless communication enables the provision of a plurality of personalized services to users of a PLMN rigid system. Such mobile wireless services contain special features that add value to the user. Such added values include: - mobility, ie the ability to maintain continuous voice and / or data connection while the user is on the move, 20 - speed, ie the ability to connect to the PLMN system wherever you are without long waiting times, and V · - regionalization, ie • get relevant information about your current location.

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By combining these value-added features, various service sizes can be created, such as: ··· • · '··· 1 - communication: email, fax, unified communications, intranet / internet; | '- VAS or Value Added Services: Information, Games; • · ·; · 1 - e-commerce: retail, ticketing, banking, stock exchange; ·· · j '. · 30 - location-dependent applications: navigation, traffic tracking, timetables, tilt ·· ♦; * 111116 - Vertical Services, Freight Delivery, Delivery Field Management, Direct Sales; and - advertising.

In the present application, PLMN is generally any cellular or cellular radio system that transmits digital information over a radio interface between terminals included in the PLMN and a base station via wireless access, employing xDM and FDM, i.e. CDM, -kanavointia.

For the purposes of this application, telecommunication network means any commercial or non-commercial, usually circuit-switched telecommunications and / or communication network owned and / or operated by a telecommunications operator and / or mobile operator, commonly referred to as CSN. In such CSN networks, technology is nowadays typically completely or almost entirely digital, with the exception of the last and last connection from the local exchange to the user terminal. The PLMN network hub or access server connects to the CSN network typically through a communication channel center belonging to the PLMN network, which may be a separate network element or part of a PLMN network hub.

20 For purposes of this application, a data network refers to any commercially or non-commercially-owned packet-switched data network owned and / or maintained by a telecommunications and / or service operator, generally referred to as the abbreviation ··· PSN. In such PSNs, data is routed to a destination across the network * * · 2 · 25 packaged in relatively small units, i.e.. packets. Typically, a PSN network, such as the Internet, an intranet, an X.25 network, etc., connects to the telecommunications network by means of an access server.

a 1 «« 1 • · ··· 1 In a PLMN network, one M · • 30 frequency channel is used for data transmission and the bandwidth is optimized. The original CDMA- * ·· standard, also known as CDMA One, which is still commonly used in the United States, provides a single-frequency data rate of up to 14.4 kbps, and up to 115 kbps on eight channels. Previously known CDMA systems include CDMA2000 and WCDMA broadband, which can provide higher data rates. WCDMA is an ITU standard based on the CDMA technology, officially known as IMT-2000. WCDMA is a third generation (3G) wireless communications technology designed to provide mobile and other terminal devices with higher data rates. WCDMA technology is designed to support motion picture, data and video communications between LAN and terminal at up to 2 Mbps and WAN (Wide Area Network) at up to 384 kbps. The WCDMA system has a bandwidth of 5 MHz, whereas the narrowband CDMA system has a bandwidth of only 200 kHz.

15 When applying TDM multiplexing to a PLMN network for data transmission, the terminal switches to one of several frequency bands during the data transmission, and the data transmission takes place in said network. frequency band in TDMA frame slots. Digital PLMN systems employing TDMA include, for example: - GSM radio systems standardized by ETSI; 20 - PCS systems conforming to EIA (Electronics Industries Association) and TIA Telecommunication Inc. *** Dustries Association (ISS) standards 95 and IS-136; ·· ♦? T: - D-AMPS systems; and others; 1j - PDC systems as defined by the Japanese RCR in association with 11 hardware and / or rigidity manufacturers.

Thus, in TDMA systems, data transmission is typically based on time division multiplexing, whereby, in order to transfer information on at least one of the access links in the access link, the frequency band (s) is divided into time slots. For example, 1 GSM system typically uses eight time-slot TDMA frames and ϊ 30 digital D-AMPS and PDC systems typically use 3 ··· 9 · · • t »« 1 • · 1 • · · f «I • · · • · 4 118916 time slot TDMA frames. However, it should be noted that different systems employ TDM technology in different ways and are not compatible with each other.

Also known is ETSI standardized 5 GPRS rigid system employing TDM channeling, supported by e.g. GSM and PCS rigid systems. The GPRS rigid system can increase the data transmission capacity over the radio interface of the PLMN system in a traffic channel employing TDM technology, i.e. a frequency band. This increase in data throughput is based on data packing and data transmission over a time slot having a data transmission capacity of 21.4 kbps. The GPRS system is also characterized by the ability to concatenate time slots in TDMA frames, whereby packetized information can be transmitted in successive time slots each having a data transmission capacity of 21.4 kbps, theoretically achievable by concatenating all eight time slots, up to 171.2 kbps data transmission. However, the problem with slot-chaining is that, in response to the chaining, the chances of transmitting information between multiple terminals and the base station in the TDMA frame are reduced. If all time slots of a TDMA frame are concatenated, it becomes a problem that the entire TDMA frame is prepared for communication between only one terminal and the base station of the PLMN network.

20th **** GSM and GPRS have the common feature that they are narrowband *: 1: PLMN rigid systems and have a constant bandwidth • · ·. · I forming traffic channels.

** «* 2 * · ***** 25 Also known is the system originally known as FPLMNS, · 3, which uses TDM time division multiplexing over wireless traffic channels, or frequency bands, and is known in Europe as UMTS, standardized by ETSI. UMTS operates at 2 GHz and has an increased data throughput capacity.

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·; · 1 designed to be a broadband system, although the UMTS ·· · • V 30 system is not a replacement for GSM or GPRS, but must be considered an extension of these. An essential difference between the UMTS system and the UMTS system is that the UMTS system has a flexible bandwidth that allows higher data transfer capacity and is sufficient, for example, to display a moving image on a terminal screen or for use on the Internet.

5

In connection with TDMA applications, FI patent 104676 discloses, in particular, an interface for WLL applications in which information is transmitted between a terminal and a base station via multiple simultaneous frequency bands. The same applicant's DE 3609395 discloses sequencing slots of different lengths into a TDMA-10 frame depending on the modulation method used.

FDM multiplexing generally refers to the allocation of a frequency band to 30 channels for wireless digital and / or analog mobile communication, in which speech and / or data can be transmitted on each channel. FDM is the basic technology for the analog AMPS-15 system, which is the most widely used system in North America. With FDM channeling, each channel can be tracked to only one user at a time. FDM channeling is also used in the English TACS system. The D-TACS digital rigid system also applies FDM multiplexing, but also uses TDM multiplexing to accommodate one to twenty FDMA channels with n13 channels, which can accommodate a threefold number of users per channel.

• · • · · · 1 «• · # .1. As a general feature of well-known, customized PLMNs using xDM multiplexing, a weakness and problem with the transmission of information is the fact that they are • # ... # narrowband networks, where the bandwidth available for data transfer is low • For example, in a GSM streaming system that uses TDM, only 9.6 kbps is available, and in a GSM streaming system, the terminal is locked. during the transmission of information to one traffic channel or * m · 30 frequency band and information is transmitted at a time only on this frequency channel • · · • · * .. 1 in one time slot.

• · · · 1 · 9 · · · · 99 Φ 9 · · · · · · 6 118916

It is a general object of the present invention to seek to eliminate, or at least substantially reduce, the disadvantages and weaknesses associated with known communication and communication over a PLMN, and to enhance communication over a PLMN and provide a virtual networked workstation, communications, data transmission, and data processing resources over the network such that application processing and information transfer and resource utilization over the PLMN over the PLMN terminal are substantially accelerated and enhanced.

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It is another object of the invention to seek to enhance communication over a radio interface of a PLMN rigid system without consuming too much bandwidth from a limited traffic channel or an xDMA frame of a traffic channel.

It is a third object of the present invention to provide a novel and inventive service package over a PLMN over a data network associated with a telecommunications network such as LAN, WAN or X.25, or an EP network such as the Internet or an intranet, and and / or a gateway means associated with a telecommunication switching center for virtual sharing of data network and / or gateway means to and for use by the terminal device (s) of the PLMN network.

• ** These objectives have been achieved by the communication system mentioned above for which «i i .1. the general characteristics are set forth in the characterizing part of the appended independent claim 1.

In accordance with the invention, a virtual network workstation is provided from a PLMN network terminal, which is connected to a resource server on a telecommunication or data network, having at least an application and disk server, and. 1 ··, - which virtual network workstation has wireless and at least 20 kbps connection • · ·. 30 through a connection to the PLMN network, and • 1 • • • 1 · • 1

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7 118916 - where the virtual network workstation does not process the application, but from which the virtual network workstation essentially transmits only control and operation functions such as keyboard and / or mouse clicks, data paths from the virtual network workstation to the resource server, and variable-5 nut data , such as changed user interface or display data, is transferred from the resource server over the PLMN to the virtual network workstation.

Since the information / data is transmitted according to the invention over the PLMN network, the data transmission system according to the invention can be utilized essentially irrespective of the type of the PLMN network. However, it is particularly preferred that the PLMN be selected from the group consisting of TDM, CDM, and CDM multiplexing PLMNs having at least 20 kbps wireless data transmission capacity. In this case, information is transmitted packetly over the wireless access connection by applying xDM multiplexing. Very preferred types of PLMNs are PLMNs that implement TDM multiplexing, for example, PLMNs according to GPRS and UMTS standards. Thus, according to the invention, it is preferred that the access link employing TDM multiplexing comprises at least one bandwidth fixed or variable and consisting of TDMA frames, wherein the access link optionally comprises a single frequency 20 band of one TDMA frame time slot or a plurality of ... Multiple time slots * of multiple simultaneous * «TDMA frames in parallel frequency bands with at least 20 •« · * · i .1. kbps. GPRS stiffness is achieved by concatenating time slots for data transmission capacity between 20 kbps and 171 kbps.

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..... 25 • ·. ···. In a GPRS rigid system, the number of consecutive data transmission slots can be • 1 «·· up to eight. When the data transfer capacity of 20-40 kbps is sufficient for the browser function implemented in the terminal, the required data transfer capacity in the GPRS system can be achieved either by one TDMA frame time slot or by concatenating two TDMA frame time slots. In this case, one traffic channel • ·] 1 ··. The TDMA frame is not reserved for communication between only one terminal and the PLMN base station, but the TDMA frame also accommodates other PLMN users. The most important difference between UMTS and GPRS and GSM is that UMTS has a more flexible bandwidth in the traffic channel, which allows for flexible data transmission capacity. In this case, it is ensured that information can be transmitted quickly enough for virtual and remote control and use of the resources of the information system and / or the data network in just one time slot of the TDMA frame.

Since the information / data is transmitted according to the invention over a PLMN network, the resource server according to the invention can be arranged on the communication path such that the communication system according to the invention can implement: - a regional or IP network solution such as LAN, WAN, internet or intranet. a packet network solution, wherein the access server of the regional or IP network includes or is associated with a resource server arranged for communication with a telecommunications network, such as a PLMN or a fixed network connected to the PLMN, a exchange or a gateway hub or access server, an intemet operator service, wherein the resource server resides in the information and / or network system of the service operator and is arranged for communication with a telecommunication network, such as a PLMN network or a fixed telecommunication network associated with a PLMN-20 network, exchange or hub or access server; operator an intelligent network service, whereby the resource server is provided to an SCP control point of the intelligent network, or IN network, to which the PLMNs »(*". * network center communicates via either the SSP access point of the IN network or • · • · 25 routed through a PLMN gateway switching center and possibly a fixed • • ... t network switching center and an IN network SSP access point. Note that SSP and SCP can be integrated into one SSCP switching and control point. It is also possible to equip or convert a telecommunication or PLMN exchange to function as an SSP and / or SSCP capability and control point for the IN *, · · · · · 30, or PLMN network center and The IN network SSP access point and SCP control point * * · • · are integrated into a single SSCP exchange.

• · * · ··· • · ♦ * · • * «• ·« ♦ • · · · ···, 118916

The data transmission system according to the invention can also provide a central service of a network operator service, whereby the resource server is mapped to an element of a telecommunications network, such as a PLMN network or a fixed telecommunications network connected to the PLMN, preferably via a fixed connection such as a cable or wireless link. a switching network, such as a PLMN network or a fixed telecommunications network associated with a PLMN network, with a exchange or a gateway exchange.

A communication protocol for remotely controlling and operating a resource server within the communication system of the invention for transferring control functions, such as keyboard and / or mouse clicks, and altered information / data, such as changed user interface or display data, between data terminal and resource server on a data path. , A Linux or other user-friendly presentation protocol. Particularly preferably, this connection protocol is an ICA connection protocol, such as a Citrixtm ICA connection protocol, which is a Windows or Unix or Linux or similar environment protocol that allows changed data of an application running on a resource server to be displayed on the terminal while the application logic is executed on the resource server. .

20 ... The resource server is in accordance with a preferred embodiment of the invention. This means that the SBC server, which is used in the terminal device over the PLMN network, • · · · 1. ·. at least the application server and the disk server. Such an SBC server is particularly advantageously a multi-user MetaFrame operating system and application server with Windows and / or Unix and / or Linux host servers. , preferably a Citrixtm MetaFrame server. On SBC server, SBC-> «« processing and SBC signaling are implemented with MetaFrame software, so that the · · · .. · terminal device only looks like a standard workstation, but no application, window, or database data but the terminal · 1 ·

30, which is preferably an ICA

• ·. ···. connection protocol, and most advantageously the Citrixtm ICA communication protocol, ICA- * 9 9 · 99 * 998 · 118916 10 communication protocol, essentially transmits only the keystrokes and / or other control functions of the terminal, such as mouse clicks and only substantially changed information / data, such as changed display or user interface data, is received at the terminal. Because the ICA protocol is implemented at the system level, it is highly efficient and compact, allowing applications that typically require a large bandwidth to be run at near LAN speed over a narrowband PLMN network, especially its wireless access.

10 It should be emphasized that, instead of the Citrix * ™ MetaFrame Server and Citrixtm ICA connection protocols mentioned above, other SBC servers and connection protocols for Windows and / or Unix and / or Linux or other operating systems can of course be used. For SBC processing and signaling and for communication and / or data transmission over a narrowband traffic channel. For example, Tarantellum1 "1 is a commercial product name for a suitable SBC server and communication protocol that can provide both a communication system according to the invention and a narrowband traffic or access connection between a PLMN terminal and a resource server.

20 ... The advantage of the invention is that with the SBC architecture different data networks such as I 9 !!! LAN, WAN, Internet, x.25, intranet and similar networks and their resources, • · 9 • · · # can be remotely accessed over a PLMN in a PLMN, whereby • · · "! ·" a virtual network workstation is created through the resource server.

Since remote control and operation is possible throughout the service area of the PLMN rigid system, and / or coverage area (s), the communication system of the invention is not 9 * 9 location-specific, but is particularly flexible and adaptable to changing needs.

Also, all connections to the data communication system, such as the Internet, are · *** · remotely accessible thanks to the SBC architecture, sophisticated traffic capacity, ··· 30 traffic channels, and the ICA communication protocol to allow virtual or virtual networking • · # ··· Nearly a fixed interface for data transfer • 9 ··· ♦ • · 9 * · 9 9 · * 9 9 9 9 9 9 9 99 9 · U 118916 ton. Particularly with regard to SBC and ICA, it must be emphasized that they overcome the limitations of narrowband. In addition to running applications, the user of a terminal device, such as a GPRS terminal, can perform file transfers and surf the Internet at the connection speed at which a data network, such as a LAN or Internet connection, connects to the resource server, since applications run entirely on the resource server.

As an example of the advantages of the above-mentioned GPRS embodiment, it can be mentioned that GPRS technology, which can complement the existing SMS text messaging services and 10 CSD data transfer services, has several unique features that allow: - GPRS to achieve multiple data transmission capacities compared to GSM; i. theoretically up to eight times the data throughput (171.2 kbps) using all eight time slots simultaneously. Similarly, for example, in D-AMPS rigid systems, the present invention can increase the transmission capacity by a factor of three.

When the GPRS terminal is within the service or coverage area of the PLMN, the connection is fast because information can be sent or received as soon as it is needed, - The GPRS facilitates the use of new and old applications over the PLMN-20 network because of bandwidth usage. substantially earlier than · ·. more than, for example, 9.6 kbps enabled by the CSD used by GSM, in addition to # ·. ···, the 160 character limit for SMS messages will be removed, • · · m:, ·, - GPRS set restrictions on typical offline data transfer ** ♦ 1 .1 ··. ··· 25 Web browsing for networks such as IP or Internet, or applications such as FTP; Telnet; etc., - the GPRS terminal can be connected to the Internet and the GPRS ··· terminal can be assigned a fixed IP address. The GPRS terminal can also be assigned a dynamic IP address. In this case, the DP-· '2: address pool unit providing the dynamic IP address is adapted to the resource server or the gateway medium.

• · • a * «· • · • 1» ·· • · • • • • • • • • • • • • • • 2 I · 12 118916

The invention will now be described, by way of example, with reference to some preferred embodiments, with reference to the appended drawings, in which FIG. 1 schematically illustrates a first preferred embodiment of the invention for implementing both "service provider" and LAN and in-5 network solutions; schematically illustrates another preferred embodiment of the invention for implementing a central network solution.

As shown in Figures 1 and 2, the communication system 10 according to the invention includes a mobile or cellular radio or PLMN network 3, and mobile stations 1 connected to a PLMN network 3 via a wireless connection 2. The PLMN network 3 connects via a switch 33 therein or a gateway switch center 34 to a switch 41 of a fixed telecommunications network 4, or to a telecommunication access server (not shown) or a packet switched data network or a data server 15 in accordance with the invention.

Regardless of the type of PLMN rigid ports, the PLMN network 3 includes, in addition to the PLMN exchange (s) 33 and PLMN gateway switch center 34, at least one base station subsystem 31, 32 that allows the mobile terminals 1 to be mobile in mobile service area 20 cells. -,., via a connection 2 to the PLMN 3.

* · * ·· «·· • · · · · · .1. Since according to the basic idea of the invention, information / data is transferred over PLMN • · 1 network 3, the type of PLMN network can be selected without substantial loss of functionality of the invention. Thus, the invention is generally applicable to all PLMN wastewater systems, i.e., radio or cellular radio systems, which, according to the invention, have a data transmission capacity of access link 2 of at least 20 kbps. According to the invention, it is preferable to apply xDM multiplexing, such as TDM, CDM and / or FDM multiplexing, to establish the access connections 2.

·· ♦ 30 • tl • · * · * · ♦ • 1 • · «·· • · • t · • · · · · 1 118916 13

According to the basic idea of the invention, the access connection 2 employing xDM multiplexing comprises at least one fixed or variable traffic channel. Very preferably, xDM multiplexing is then TDM multiplexing.

In the following, the present invention will be described by its particularly preferred embodiments, illustrated in Figures 1 and 2. In this case, xDM multiplexing is represented by TDM multiplexing and the PLMN system is a GPRS subsystem.

In the embodiments of Figures 1 and 2, the GPRS network 3 includes at least one SGSN central processing unit 33 and a base station subsystem comprising at least one base station controller 32 and base stations 31 serving a cell of the PLMN network 3. Within the coverage area of the base station 31, the GPRS terminal 1 can move and communicate via a wireless TDM-based connection 2 to the base station 31. The base station controller 32 and associated or associated base stations 31 15 can be either separate or integrated in the GPRS network 3. In the embodiment shown in the figure, the base station controller 32 and the base stations 31 are shown as separate units and thus form the base station system 31, 32 of the GPRS network 3.

When access line 2 applies TDM multiplexing, access line 2 comprises at least ... (one bandwidth fixed or variable, and consisting of • 1. ·· 1 TDMA frames), optionally having access links using TDM multiplexing. .,, The path 2 • · 1 • • i ·. ···, - a single frequency band for one TDMA frame slot, or ·· 25 25 - a single frequency band for multiple concurrent TDMA frames with multiple f ·· times. ··· 1: The data transmission capacity is at least 20 kbps. When the preferred '***'; PLMN network 3 employing TDM channeling is a GPRS network, the data connection 2 of the wireless access point 2 between the terminal 1 and the IV, 30 GPRS network 3 base stations 31 - - - - - - - - - - - - - - - - - - - - - - - · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Depending on the range of 20 kbps - 171 kbps.

In order to clarify the invention, it is to be noted that known server application utilization systems employ one of the following principles: of passivity, that is. in mobile solutions, the data transmission capacity of the wireless connection.

- In the terminal / server solution, a terminal or client program is stored in the terminal to execute and send the necessary control commands to the application on the server, after which the server processes the request 15 and returns the result to the terminal. This solution can only reduce the program memory required by the terminal, but the application processing and data access speed is slow, since data access from the application to the terminal is completely dependent on the data transfer capacity of the slowest single connection between the terminal and the server.

20 in mobile solutions for the data transmission capacity of the wireless connection, and ... - in the browser / network solution the browser program is stored in the terminal, e.g.

Netscape1 "1 and Microsoft Internet Explorer1" 1 to view and influence * · ·:. application on the server. Technically, the browser program is a terminal • · t # · # φ. ···. A program that uses the connection protocol and queries the server. Browser ser is slow because the basic principle in browser solutions is to send all query data from the terminal and receive all the response data · 1 · to the terminal and because the access to the application from the terminal to the device is completely dependent on the terminal to the server. ***** of the slowest single link data throughput capacity that mo ···: v, 30 party solutions such as PLMNs have wireless access • ♦ • ·, ···. the data transmission capacity.

• ♦ ·· · f • »« • »♦ t · • · • ♦ • #« • · 118916 15

Since in the communication system according to the invention information / data is transmitted between the terminal 1 and the resource server 8, the connection can be made from a switching center 3, 4 such as a PLMN and / or a fixed network associated with the PLMN to a switch 33 or a connection server 34 (not shown) and vice versa, it is not essential to the operation of the invention how and how the communication path between the terminal 1 of the PLMN network 3 and the resource server 8 is arranged. Thus, the communication system according to the invention can implement: 10 a) an area or IP network solution, wherein the area or EP type data network 5, 6, 7 is preferably a LAN or WAN or Internet or intranet or similar packet network, and wherein the area or a resource server 8 belonging to or associated with an EP network access server 51, 61, 71 is mapped to a communications network, such as a PLMN network 3 and / or a fixed network 4 associated with a PLMN network 3, exchange 15 33, 41 illustrated in FIG. a solid line, or a connection channel center 34, the connection of which is illustrated in dotted line in Figure 1, or an access server (not shown), b) a "service provider" solution such as the Internet or other service provider. ···. service provided through the resource, wherein the resource server 8 resides in an information and / or network system of the service operator * * * 20, which may be a computer system or e.g.

• · · j. *, A regional or IP-type data network 5, 6, 7, and wherein the resource server 8, which * * · · belongs to or connects to the access server 51, 61, 71 of the regional or IP network 5, 6, 7. , is in connection with the data transmission connection of a telecommunications network, such as a PLMN network 3 and / or a fixed telecommunications network 4 connected to the PLMN network 3, to the exchange 33, 41, the connections of which are illustrated with a solid line in FIG. 1 to the gateway channel 34 of the network 3, the connection of which is illustrated in FIG. 1 by a dotted dash, or a telecommunications network 3, 4, such as the PLMN network 3 and / or the PLMN network 3. ** ·. associated fixed telecommunications network 4, to an access server (not shown), ·· * c) an operator solution, e.g. a service provided over an operator of a telecommunications network such as a PLMN network 3 and / or a fixed network 4 associated with a PLMN network. the resource server 8 is mapped to an element of the telecommunications network 3, 4 which is a fixed link, which may be implemented preferably via a cable or wireless link, in a data link, such as a PLMN network 3 and / or A fixed telecommunication network 4 associated with a PLMN network, with a exchange 33, 41 illustrated by a solid line in FIG. 2, or a gateway 34 of a PLMN-5 network illustrated by a dotted line in FIG. 2, or d) an IN solution; an intelligent network or IN service (not shown) available through the operator of a telecommunications network, such as a PLMN network 3 and / or a fixed network 4 connected to the PLMN network, wherein the resource server 8 is preferably tracked to the SCP control point of the 10 IN network (not shown). (not shown) communicating directly with a PLMN network 3 exchange 33 via an IN network SSP access point (not shown) or routed through a PLMN network 3 gateway switch center 34 and an IN network SSP gateway 34 and a fixed telecommunication network 4 exchange 41 and via the SSP access point of the IN network. Connection control from the PLMN or telecommunications network to the IN network and back is preferably controlled by general SS7 signaling. It should also be noted that the SSP and the SCP can be integrated into a single SSCP switching and control point. Also, the exchange 41 or 33 of the telecommunication or PLMN network can be provided or converted to act as an SSP and / or SSCP capability and control point of the IN network, whereby the telecommunication or PLMN ··· 20 network center and the IN network SSP access point and the SCP control point are integrated into a single SSCP exchange (not shown).

·· * · • · · · · · ·: Establishing connections in telecommunication and data networks is well known to those skilled in the art:] * [, so this will not be further explained in the present application. However, the following is noted.

·· • * ·· i. Both routing within and between data networks that use TCP / IP, such as the Internet, intra- ·· ♦ \ ..J net and extranet networks, * * "; routers and IP addresses.

«·· *: · * · ii. In regional networks, such as LAN and WAN networks, 30 routers and bridges are used for routing. The most important difference between a router and a bridge is that • · ·: the router recognizes a third OSI-level network address, e.g., IP 11, but the bridge can only utilize a second OSI-level address, e.g., MAC. addresses. Bridges also do not support handshake protocols, such as ICMP used by routers. Nowadays, routing also often uses bridge-router combinations, i.e.. the so-called. broutereita. Area networks can be interconnected via a modem link between a bridge, router or two bridges.

iii. In telecommunication and PLMN networks, and between these networks and the IN network, routing is typically based on the desired destination, i.e. the B-interface, i.e.. the resource server 8, for sending the call selection in the calling or A-interface, i.e.. 10 in the terminal 1, wherein the call selection is routed from the terminal 1 to the resource server 8 through signaling via nodes of the telecommunications and / or PLMN and / or IN network 3, 4, such as exchanges 33, 34, 41 and SSP. Any CAS or CCS signaling for inter-node information / data transfer can be used for signaling. A preferred 15 is for establishing a connection between nodes of a digital network

CCS signaling is the standard SS7 signaling standardized by the ITU-T (International Telecommunication Union-Telecommunications Standardization Sector). This standardized SS7 signaling is mainly based on the SCCP protocol and OSI Model Levels 1-3, which includes physical layer SDL

··· * ··· 1 20 and the transport link layer SLF and the network layer SNF, which together form the MTP part with which the SCCP protocol forms the NSP part, thus forming an OSI level 1-3 and level 3 related SCCP protocol.

According to the invention, the resource server 8 is an SBC server, preferably a plurality of servers. a MetaFrame user operating system server that preferably supports at least · · # ... t Windows and Unix user operating systems, the connection protocol preferably being an ICA connection protocol. Most preferably, the SBC server is a Citrixtm MetaFrame SBC-1 · server and the connection protocol is the Citrix1 ™ ICA connection protocol, respectively. Another * · • # * "30 SBC server that acts as a MetaFrame operating system server is, for example: 1 18 9 89 11

Tarantellumtm MetaFrame SBC Server, whereby the connection protocol is the Tarantel-lumtm ICA connection protocol.

In the first embodiment of the invention shown in Figure 1, resource server 5 is mapped to a wide area network, preferably a LAN 5, whose access server 51 is communicating either directly by cable or another telecommunication network 4, preferably a fixed circuit switched CSN or another PLMN. network, via PLMN exchange 33, PLMN gateway 34 or other telecommunication network 4 associated with PLMN network 3. Preferably, resource server 8 is connected to access server 51 by a cable link, but resource server 8 may also be integrated as part of access service 51. In addition to or instead of the investment associated with the access server 51 of the network 5, the resource server 8 may also be adapted to connect to other packet switched data networks 6, 7 access services 61 and 71, as illustrated in dashed line in FIG. Accordingly, the communication path from the terminal 1 over the PLMN network 3 always extends to a resource server 8 located in the data network 6, 7, such as an Internet, intranet, WAN or similar PSN network, which preferably belongs to or connects to the data server 6, 7, respectively. 61.71.

Thus, it is generally preferred that in this first embodiment of the invention

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20 The PLMN network 3 exchange 33 or gateway exchange 34 is directly on the cable link or • · * • * · ...

'·' * Via another, e.g., fixed, telecommunications network 4 in communication with data network 5, 6, * »* ♦ ··· * 7. Particularly preferably, the resource server 8 is located to connect the PLMN exchange 33 • * *** \ or the PLMN gateway channel 34 or another telecommunications network associated with the PLMN network 4 • or the second telecommunications network associated with the PLMN • network. 25 servers and data network 5,6,7 access servers 51,61,71.

• ·

In another embodiment of the invention according to Figure 2, the resource server 8 is arranged in a PLMN network 3 or a fixed circuit switched PLMN network associated with the PLMN network 3, so that the resource server 8 is mapped to the PLMN. · * Γ * 30 to network 3 and data path, from terminal 1 over PLMN network 3 to the resource server • · *. *: To node 8, via cable connection to data transmission via either PLMN exchange or PLMN- after said communication path, from the terminal 1 over the PLMN network 3 to the resource server 8, the resource server 8 is tracked either by direct cable connection or by a network connection, such as the packet data connection d connection 5 with the data communication connection 5 , which data network in the second preferred embodiment of the invention according to Figure 2 is a wide area network Alternatively or additionally, as also shown in Figure 2, the resource server 8 may be connected to another access server 61, 71 of a data network 6, 7, such as an Internet, intranet, WAN or similar PSN network. The data transmission path then extends from the terminal 1 over the PLMN network 3 to a resource server 8 in a data network 6, 7, such as an Internet, intranet, WAN or similar PSN network, which preferably belongs to or connects to the data network 6,7 71. In general, therefore, in this second embodiment of the invention, the PLMN network center 15 or the gateway 34 is directly connected to the data network 5, 6, 7 via a cable link or another, e.g., fixed, telecommunications network 4. Particularly preferably, the resource server 8 is located at the PLMN exchange 33 or the PLMN gateway switch center 34 or the second telecommunication network 4 associated with the PLMN network or the second telecommunication network connection server 20 and the data network 5,6 , 7 between the access servers 51, 61, 71.

• · * • · · * · • · * * ·

According to the invention, it is advantageous for the resource server 8 to connect via a cable link connection or a wireless link connection to the exchange 33 of the PLMN network 3 or the second telecommunications network 4 connected to the connection center 34 or the PLMN network, e.g.

• · 25 CSN network, to the exchange 41 »• ·. ···. In order to provide the virtual network workstation »1, i.e., the terminal device of the PLMN network 3, with the maximum of resources available to the virtual network workstation» 1, it is preferred according to the invention that the resource server 8 includes application server 81 and disk server 82. In both preferred embodiments of the invention according to FIG. 1 and FIG. 2, the application server 81 of resource server 8 is implemented with a connection mode. - that a browser application, such as Netscape * "1 and Microsoft Internet Explorer1 *", whereby the resource server 8 can utilize not only the resources of that area and / or data network 5, 6, 7 but also that area and / or data network 5, 5 6 , 7 resources of other regional and / or data networks 5, 6, 7 associated with the access server 51, 61, 71, e.g.

Very preferably, the resource server 8 is mapped as a network element of the PLMN network 3, or the resource server 8 belongs to or connects to the data server 5, 6, 7 access server 10 51,61,71, which is directly connected by cable or another telecommunication network such as a fixed CSN network. Thus, the communication system according to the invention can utilize virtually all the resources of the data network 5, 15 6, 7 in addition to the application and disk resources of the resource server 8 via the communication path between the resource server 8 and the PLMN network terminal in the terminal 1.

According to the invention, the resource server 8 is implemented on the SBC server utilizing the SBC architecture. Preferably, the SBC server is a multi-user Meta-Frame operating system server that supports at least Windows, Unix, and Linux 20 operating systems, most preferably the SBC server Citrix *** 1 SBC server. In the multi-user * · *. *, SBC-MetaFrame user operating system server, all SBCs · · · * * ". * Processing and SBC signaling are implemented by the Meta-i • system on the SBC server 8.

Frame software. For example. To support Windows and / or Unix and / or Linux • «, · ·· ^, SBC Server 8 has a Windows and / or * 25 Unix and / or Linux Terminal Server (s), respectively. equipped with Citrix * 1 "MetaFra-me software. In this case, PLMNs 1 are and look like normal workstations. ·· *, but there is no application, min» M * validation between the terminal 1 and SBC server 8. rather than database data, the terminals 1 are truly virtual network * * · workstations. Only the keystrokes of the terminal 1 and / or other control •! *** 30 functions, such as mouse clicks, are transferred to the terminal 1 and the SBC server 8 * · * · · * · * J on the data path to the SBC server 8. In SBC processing, the display screen of the terminal • * · * M 9 «21 118916 1 is updated only on changed parts of the screen. Due to the SBC processing, the bandwidth is required over the radio interface between the terminal 1 and the base station 31 for only 20 kbps per terminal 1, resulting in e.g. a single slot of 21.4 kbps in the TDPR frame of the GPRS-5 system or e.g. one slot of the frame is sufficient for virtual, on-line remote working with a fixed network related or associated information system and / or resources.

A protocol component for remotely controlling and operating a data network 5, 6, 7 in a communication system according to the invention for transferring control functions, such as keyboard and / or mouse presses, and variable data such as variable user interface or display data between terminal 1 and resource server 8. thus, said ICA connection protocol, preferably a distributed display protocol for Windows, Unix, Linux or other operating systems. The ICA connection protocol is a general purpose protocol for an operating system environment such as Windows, Unix, or Li-nux. The ICA connection protocol enables the application interface presentation to be displayed on the terminal 1 display while the application is executed on the multiuser resource server 8, which is preferably an SBC server such as a MetaFrame server. A preferred MetaFrame server is, for example, Citrix * ™ or Tarantellumtm MetaFrame server. Because the JI f ICA communication protocol is implemented at the system level, it is very efficient • · • · ***. and compact, allowing applications that normally require a large bandwidth to be run at near-LAN speed over narrowband access and * · 25 telephone lines.

9 ·, ···, In this application, the following abbreviations are used as follows: · 30 SGSN Serving GPRS Support Node • * • »· *. * ί LAN Local Area Network • · * ♦ · • ·· • 0 t 22 1 1 891 6 WAN Wide Area Network TCP Transmission Control Protocol IP Internet Protocol CAS Channel Associated Signaling 5 CCS Common Channel Signaling VAS Value Added Services CDM Code-Division Multiplexing TDM Time Division Multiplexing FDM Frequency Division Multiplexing 10 CSN Circuit Switched Network PSN Packet Switched Network CDMA Code Division Multiple Access WCDMA Wideband Code Division Multiple Access TDMA Time Division Multiple Access 15 FDMA Frequency Division Multiple Access ETSI European Telecommunication Standards Institute GSM Global System for Mobile Communications PCS Personal Communication Services D-AMPS Digital-American Mobile Phone System * ·· * '20 AMPS Advanced Mobile Phone Service · * · I; ; , PDC Personal Digital Cellular • * · GPRS General Packet Radio System * · ^ FPLMNS Future Public Land Mobile Network System • f ... UMTS Universal Mobile Telecommunication System • · 25 WLL Wireless Local Loop TACS Total Access Communication System. ** ·. D-TACS Digital-Advanced Mobile Phone Service * · · ICA Independent Computing Architecture • · · • * * ..? SBC Server Based Computing • · 30 SMS Short Message Service • · ’· * S CSD Circuit Switched Data · •» · • it i 23 1 1 891 6 FTP File Transfer Protocol WWW World Wide Web IN Intelligent Network SCP Service Control Point 5 SSP Service Switching Point SS7 Signaling System 7 OSI Open System Interconnection MTP Message Transfer Part SCCP Signaling Connection Control Part 10 NSP Network Service Part SDL Signaling Data Link SLF Signaling Link Functions SNF Signaling Network Functions ICMP Internet Control Message Protocol 15 MAC Media Access Control

The invention has been described above by way of example only in some preferred embodiments thereof. Of course, this has not been intended in any way to limit the present invention to only such individual embodiments for the spring. Thus, as will be apparent to one skilled in the art, a variety of alternative solutions and modifications are possible within the scope of the invention as appended hereto.

»1 * 1« «f · ... Thus, what is most relevant to the operation of the present invention is the type of PLMN and how the resource server 8 is. tracked to the data path, i.e., whether the resource server 8 is connected to the cable connection (s), • · t ... t satellite or other wireless link (s), PSN or CSN * · 'network (s) 4 via PLMN to 3 exchanges / gateway switches 33/34.

I 1 · 1 · «· • 0 9 9m • 1 * 1

• M

♦ • 1 • · 0 »tf • 1 9 9 9 * mm • ·

Claims (22)

24 118916 A communication system for transmitting information / data over a mobile or cellular radio (PLMN) network (3) from a terminal (1) associated with a PLMN network (3) via a wireless access connection (2), such as a mobile station or a handheld computer or laptop. , and back, which PLMN network (3) is optionally in communication and / or data transmission preferably with a packet switched data network (5, 6, 7), such as LAN, WAN, Intranet, X.25, IP, etc. wherein, in a communication system for providing a virtual network workstation, a terminal (1), a PLMN (3) connected to and / or a resource server (8) comprising at least an application server (81) and a disk server (82) and communicating with a PLMN (3) exchange (33) or gateway (34), and wherein the communication system between the terminal (1) and the base station (31) on the communication path between the terminal (1) and the PLMN (3). The data transmission capacity of the 15 wireless access connections (2) is at least 20 kbps, characterized in that the resource server (8) is arranged for communication directly and / or the access server (51, 61, 71) of a data network, preferably a PSN network (5, 6, 7). or via a fixed telecommunication network (4), preferably a CSN network, a switch (41), and that the remote control and operating means of the resource server (8) include a terminal between the terminal • φ · V · 20 (1) and the resource server (8). a connection protocol that essentially • · i transfers only control and operation functions such as keyboard and / or mouse presses ··· * ... · from the terminal (1) to the resource server (8) and only changed data such as other • * Knows user interface or display data, moving from resource server (8) to terminal · »· (1). • · • · i Communication system according to claim 1, characterized in that the resource server (8) is arranged at the exchange (41) of the fixed telecommunications network ii *: (4) and the data network (5,) connected to the PLMN network (3). 6.7) between the access server (51, 61, 71). · «• · • t • · · 30 * · * • • • • • M • · 25 118916 Communication system according to Claim 1, characterized in that the resource server (8) is connected by means of a cable link or wireless link connection to a center (33) or a gateway exchange (34) of the PLMN (3), or Communication system according to claim 1, characterized in that the resource server (8) is connected to an interface adapter (51,61,71) of the PSN network (5,6,7). Communication system according to any one of the preceding claims, characterized in that the resource server (8) is an SBC server comprising at least an application server (81) and a disk server (82) for generating resources. 5. to the exchange (41) of the CSN network (4). Communication system according to Claim 5, characterized in that the SBC server (8) is a multi-user access system server, preferably comprising a Windows, Unix and / or Linux or similar terminal server (s). ··· • · The data transmission system according to claim 5 and / or 6, characterized in that i »· / *, * and the SBC server (8) SBC processing and SBC signaling are implemented with SBC software implemented on SBC servers, * 20, such that the terminal (1) is and • * · ***. Looks like a normal workstation, but no application, window, or database data is transmitted between the terminal (1) and the SBC server (8), but via the ICA communication protocol between the terminal (1) and the SBC server (8) - from the terminal (1) Keystrokes on the SBC server (8) on the terminal (1) • m · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · - or display data. • * • * • · · 9 m 9 • 99 *; '· j 8. A data transmission system according to claims 6 and 7, characterized in that • · t * * 30 SBC server (8) and ICA connection protocol are intended for Windows, Unix, Linux, etc. to a system environment for implementing SBC processing 26 118916 on the SBC server (8) and for implementing communication and / or communication between the SBC server (8) and the terminal (1) via a narrowband wireless connection (2). Communication system according to one of Claims 1 to 8, characterized in that, in order to provide a narrowband communication system and an access connection (2) between the terminal (1) and the resource server (8), the resource server (8) is selected from a multiuser SBC server including Citrix0 ". , Tarantellumtrn and similar multi-user SBC architecture for Windows, Unix, Linux etc. operating systems and application servers, and that the ICA communication protocol for data transfer between the resource server (8) and the terminal (1) is distributed in Windows, , Linux, and Unix and / or similar user-based presentation protocols selected from the group consisting of Citrix1 "1, Tarantellum1" 1, and the like, ICA communication protocols for data transmission over a narrowband 15 communication bandwidth. A data transmission system according to any one of the preceding claims, characterized in that: a) a data network (5, 6, 7) an access server (51, 61, 71) and a resource server (8), or b) a telecommunications network; (3, 4) a communication capacity based on an optional protocol between a exchange (33, 41) or a PLMN network • 1 »•« · * ". 1 20 a gateway exchange (34) and a resource server (8). is between 64 kbps t..t> -n12Mbps • · ·· · The data transmission system according to any one of the preceding claims, characterized by φ · • ·. ···. 25, to distribute and utilize the resources (81, 82) of the data network (5, 6, 7) on a virtual terminal (1), a terminal (1) and a PLMN (3). ... only the control commands and the changed user interface data of the communication network (s) (*) or the communication application (s) selected by the terminal (1) are transmitted between the base station (31). • · · • · · »· • 1 · • · • m 27 1 1 891 6 Communication system according to one of the preceding claims, characterized in that the terminal (1) is a virtual network workstation utilizing a resource server (8) communicating with the PLMN network (3). The data transmission system according to any one of the preceding claims, characterized in that the wireless and digital access connection (2) of the terminal (1) for transmitting to the base station (31) of the PLMN network (3) applies a channelization of information to be transmitted. and CDM and TDM multiplexing. 10 Communication system according to Claim 13, characterized in that the access link (2) applying xDM multiplexing comprises at least one fixed or variable bandwidth traffic channel and the communication capacity of the access link is at least 20 kbps. 15 A data transmission system according to claim 13 and / or 14, characterized in that the access link (2) applies TDM multiplexing, which comprises at least one connection. den, fixed or variable bandwidth and TDMA frames • · · • · · .1. a frequency band in which, in the connection (2), optionally, a single frequency band • · · 20 slots of a single TDMA frame or a plurality of simultaneous TDMA • · · slots of a plurality of concatenated slots or a single frequency band. · · ·. the frame has a multiple slot data transmission capacity of at least 20 kbps. • · · 1 · The data transmission system according to any one of claims 13 to 15, characterized by • · j ** ·. 25 that the PLMN network (3) is GPRS, and that the data transmission capacity of the wireless access link (2) between the terminal (1) and the PLMN network base station (31) is 1. · · ·, Is between 20 kbps and -171 kbps. • 1 A data transmission system according to any one of the preceding claims, characterized in that, optionally, the resource server (8): 281 1 891 6 - is located in an IN network belonging to: or is connected to the PLMN network (3) and / or the telecommunications network (4), - is located in the data network (5,6), wherein the resource server preferably belongs to or connects to the access server (51,61) of the data network (5,6); in the network (7), the resource server preferably belonging to or associated with the access server (71) of the TCP / IP network (7), is a network element of the fixed telecommunication network (4) associated with the PLMN network (3) or PLMN network; (8) and a PLMN (3) exchange (33) or PLMN (3) gateway (34) or telecommunication (4) exchange (41). A method for transmitting information / data over a mobile or cellular radio (PLMN) network (3) from a terminal (1) connected to the PLMN network (3) via a wireless access connection (2), such as a mobile station or pocket computer or laptop computer; which PLMN (3) is optionally in communication and / or data transmission preferably with a packet switched data network (5, 6, 7), such as LAN, WAN, Intranet, X.25, IP, etc., wherein: a communication system for providing a virtual network workstation to a PLMN. ···, (3) a terminal server (1), a PLMN network (3) associated with and / or hosting a resource server • 1 · 20 (8) comprising at least an application server (81) and a disk server (82) and • communicating with a PLMN (3) exchange (33) or gateway hub (34), and in which communication system on the communication path of the terminal (1) ··· *: 2 ·· and a PLMN (3) The data transmission capacity of the wireless connection between the terminal equipment (1) and the base station (31) is at least 20 kbps, characterized in that the method: · • 2 ·· provides a resource server (8) directly and / or • · · via an access server (51, 61, 71) through a data network, preferably a PSN (5, 6, 7): 3; or via a switch (41) of a fixed telecommunications network (4), preferably a CSN network, and that the remote control and operating means of the resource server (8) include a communication protocol between the terminal (1) and the resource server (8). , which in the method: • · i * · · 2 • It 3 • t 2, 118916 substantially transfers only control and operation functions such as keyboard and / or mouse presses from the terminal (1) to the resource server (8), and further: only changed data, such as changed usage-5 interface or display data, from the resource server (8) to the terminal (1). A method according to claim 18, characterized in that the resource server (8) is arranged in a switching center (41) of a fixed telecommunications network (4) connected to the PLMN network (4) and an access server (51,61, 71) of the data network (5,6,7). ). 10 Method according to Claim 18, characterized in that the resource server (8) is connected by means of a cable link or wireless link connection to a center (33) or a gateway exchange (34) of a PLMN (3) or to a center (41) of a CSN (4). ). 15 A method according to claim 18, characterized in that the resource server (8) is connected to an interface adapter (51, 61, 71) of the PSN network (5,6,7). . ** ·. A method according to any one of the preceding claims 18 to 21, characterized by: • m · 1 · 1 · 20, wherein optionally the resource server (8): *: 1; - located in an IN network belonging to or associated with a PLMN network (3) and / or a telecommunication network (4), · · · j · 1: - located in a data network (5,6), the resource server preferably being or connected to an access server (51, 61) of the data network (5, 6), 25. located on the TCP / IP network (7), the resource server preferably belonging to or • 1 ·· connected to the access server (71) of the TCP / IP network (7); ), t · · - is a network element of a PLMN (3) or a fixed telecommunications network (4) associated with a PLMN (3), whereby the resource server (8) and the PLMN (3) are : ··; There is a fixed connection between its (33) or the gateway channel center (34) of the PLMN network (3) or the telecommunications network (4) · · · · · · · · · · · · · · · · · · · 30, 118916