WO2007051745A1 - Procédé d’utilisation d’un système de communication, noeud de réseau et système de communication - Google Patents

Procédé d’utilisation d’un système de communication, noeud de réseau et système de communication Download PDF

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Publication number
WO2007051745A1
WO2007051745A1 PCT/EP2006/067753 EP2006067753W WO2007051745A1 WO 2007051745 A1 WO2007051745 A1 WO 2007051745A1 EP 2006067753 W EP2006067753 W EP 2006067753W WO 2007051745 A1 WO2007051745 A1 WO 2007051745A1
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WO
WIPO (PCT)
Prior art keywords
network
mobile
type
mobile terminal
network node
Prior art date
Application number
PCT/EP2006/067753
Other languages
German (de)
English (en)
Inventor
Frank Mademann
Original Assignee
Nokia Siemens Networks Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Siemens Networks Gmbh & Co. Kg filed Critical Nokia Siemens Networks Gmbh & Co. Kg
Priority to EP06807533A priority Critical patent/EP1946516A1/fr
Publication of WO2007051745A1 publication Critical patent/WO2007051745A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/085—Mobility data transfer involving hierarchical organized mobility servers, e.g. hierarchical mobile IP [HMIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the application relates to a method for operating a communication system.
  • Mobile devices register with a network node of the mobile network used by IH nen, zen to wireless services at nut ⁇ .
  • the mobile terminal may be, for example, a mobile telephone, a mobile computer ("laptop") or a so-called PDA (Personal Digital Assistant) with a radio interface or else a radio module in various fields, such as for applications in so-called machine-to ⁇ machine (machine-to-machine, M2M) environment or to the lower support alarm ⁇ -cutting applications in the field of telematics used.
  • machine-to-machine M2M
  • the registration of the mobile terminal at the network node of the mobile network is also required that the mobile terminal over the mobile network for incoming calls he ⁇ reachable. To ensure this, the registration of the mobile terminal is constantly updated. This also applies if the mobile terminal or its user himself does not initiate a service, such as a call.
  • a mobile terminal supports data transmission over mobile radio networks of different types, ie if the mobile terminal supports, for example, several access networks or radio standards, then in the most favorable case a network node should support all of these different radio standards, since this results in efficient mobility of the mobile terminal between the mobile networks of different types is possible.
  • access networks are commonly referred to as mobile telephone networks within the vorlie ⁇ constricting application.
  • the infrastructure of the so-called core network can be used in whole or in part by mobile networks of different types.
  • a change of the mobile terminal between the mobile radio networks of different types causes a change of the mobile terminal depending on its respective place supervising network node, ie the network node in which the mobile terminal ⁇ device registered causes, thus arises in and between the participating mobile networks different types of signaling traffic or load.
  • a change between see the mobile networks of different types is usually triggered by the fact that the mobile terminal übli ⁇ chate always selects the currently best available mobile network. In this mobile network, the mobile terminal then logs in each case. It should be noted that even those mobile devices that do not move, change the mobile network used by them ⁇ nen, since radio conditions are not static, but are subject to the same place changes.
  • the mobile terminal can switch between the radio cells of the mobile radio networks of different types, without this being communicated to the responsible network node and thus without any signaling load being generated.
  • a common node has the mobile networks of different types, ie beispielswei ⁇ se two different wireless standards that support. This is necessary so that the data arrive unambiguously and in direction to the mobile terminal at a network node of the competent network node, the mobile terminal can call him within the rejected to ⁇ combined registration area.
  • the combined registration areas no selective, that is, for example, a mobile terminal or specific to the user, access ⁇ control to the different mobile networks possible.
  • E-UTRA and UTRA / 2G is a proposal for so-called äquiva ⁇ lente registration areas known.
  • each defines its own registration area for a first access network and a second access network and correspond transferring information to a mobile device.
  • the mobile terminal even in the event that the access networks do not have a common network node, allows a change between the access networks, without requiring a re-registration in a network node of the respective access network for each stay in the respective registration area.
  • the prerequisite for this is that no data transmission from or to the mobile terminal takes place during or between the changes.
  • the present invention has for its object to provide a simple and flexible method for operating a Kommuni ⁇ nikationssystems with a MobiIfunknetz first type and a MobiIfunknetz second type, by the signaling s mecanics wh is optimized when changing an inactive mobile terminal between the mobile networks.
  • This object is inventively achieved by a method for operating a communication system with a mobile ⁇ radio network of the first type and a mobile radio network of the second type and at least one mobile terminal, wherein the mobile ⁇ radio networks different registration areas are set, the method comprising the steps of: Re - Register the mobile terminal in a network node of the mobile network of the first kind, the network node the mobile terminal at least one registration area identifier of Mo ⁇ bilfunknetzes first type and at least one registration ⁇ area identifier of the mobile network confirms second type, establishing a data transmission path between the mobile terminal and an access node to an external network via the network node of the mobile network of the first type and at Anfor ⁇ alteration of data transmission between the mobile terminal and the access node to the external network via the mobile radio network of the second type establishing a dynamic moübertra ⁇ supply path between the mobile terminal and a network node of the mobile network of the second type via the network node of the Mo ⁇ bilfunknetzes first type.
  • the network node of the mobile radio network of the first type may, for example, be a network node of a radio standard according to a new technology.
  • the mobile network of the second kind which is another, z. B. already longer available radio standard used, be extended in the context of a Net ⁇ extension to this new wireless standard.
  • the method according to the invention is advantageous, since it enables the use of different registration areas for the mobile radio network of the first type and the mobile radio network of the second type with little modification effort to the existing architecture of the communication system.
  • the power of the second kind ⁇ cellular network advantageously in particular only with each other dynamically a data transmission path when a data transfer is actually requested via the mobile network of the second type build nodes of the mobile network of the first type and the network nodes. This can take place both on the part of the mobile terminal and on the part of an access node to an external network.
  • the external A network can be any communication network, such as the Internet or a private corporate network.
  • the mobile terminal several registration areas of a mobile network are confirmed.
  • the method according to the invention is configured in such a way that the network node of the first type of mobile network stores the at least one registration area identifier of the mobile network of the second type by means of a classification of the registration area identifiers of the mobile radio network of the first type stored in a memory device assigned to the network node of the first type determined to the registration area identifiers of the mobile network of the second kind and confirmed to the mobile terminal.
  • the network node of the first type of mobile network can thus independently determine the at least one registration area identifier of the mobile radio network of the first type.
  • the network node has the mobile communications network of the first type not only the assignment of the registration area identifiers of the mobile network of the first type to the registration area identifiers of the mobile network of the second type, but further addition to the mobile communications network of the second type assigned temporary identities which the mo ⁇ bilen terminal together with the corresponding registration area identifier and used by it in the following for identification.
  • the method according to the invention can also run such that the network node of the first type of mobile network receives the at least one registration area identifier of the second type of mobile network from prior registration of the mobile terminal with the network node of the second type of mobile network for the mobile terminal further accepted as valid and recommends to the mobile Endge ⁇ confirmed.
  • the mobile terminal is informed by the Bes ⁇ actuation that the at least one registration area identifier of the mobile network of the second type is still valid and beyond the mobile terminal at least one registration area identifier of the mobile network of the first kind is preferably together with at least one zugehö ⁇ rigen temporary identity confirmed.
  • the network node of the mobile network of the second type bestä ⁇ account during such a periodic registration this infor- as valid for the mobile device.
  • This embodiment has the advantage that neither the network node of the mobile radio network of the first kind nor the network node of the mobile radio network of the second type must know the registration areas or registration area identifiers of the respective other mobile network and also the necessity of storing an assignment of the registration area identifiers of the mobile radio network of the first type the registration area ⁇ identifications of the mobile network of the second type advantageously eliminated. Furthermore, it is therefore also not necessary for the network nodes to manage and assign temporary identities of the respective other mobile radio network.
  • the inventive method can preferably such be formed off, that the network node of the mobile network of the first type the arrival of transmission data for the mobile terminal from the access node to the external network calls out the mobile terminal in the at least one registration area of the Mo ⁇ bilfunknetzes first type, the network node of the mobile communications network of the first type, a takeover request to the network node of the mobile network of the second kind transmits to take over the mobile terminal with the call, and the mobile terminal in the Minim ⁇ cries least a registration area of the mobile communications network of the second type of network nodes of the Mo ⁇ bilfunknetzes second type ,
  • the network node of the first type of mobile network informs the network node of the second type of mobile network of all relevant parameters relating to the mobile terminal or its users and the associated data transmission service, ie all parameters relevant to the data transmission, such as the Quality of Service (QoS) designated quality of service.
  • QoS Quality of Service
  • the transfer request is thus about a known requirement comparable to carry out a "handover" so-called.
  • handover is then generally called a handoff of a mobile terminal from a network node of a cellular network to ei ⁇ nem other network nodes of the mobile network.
  • This embodiment of the inventive method is preferred because it fen the Ausru- the arrival of transmission data for the mobile terminal from the access node in the external network in the network node of the mobile network of the first type of the mobile terminal both in the at least one Re ⁇ gistr michs capable the mobile communications network of the first type as in the corresponding registration area or the corresponding registration areas of the mobile network of the second kind allows.
  • the network node of the mobile radio network of the second type advantageously requires no or only minimal information about the mobile terminal up to this time, depending on details of the specific embodiment.
  • the inventive method is so downloadedbil ⁇ det that the mobile terminal the network node of the mobile network ⁇ second type answers, the network node of the mobile network of the second type the node of the mobile network first type confirms the acquisition of the mobile terminal, a data transmission path between the two Network node is set up and the transmission data are sent from the network node of the mobile network of the first kind via the network node of the mobile network of the second kind to the mobile terminal.
  • This embodiment is advantageous because in the case the mobile terminal is registered at the time of the paging in the mobile radio network of the second kind or can be reached via this mobile network, the transmission of the transmission data from the access node of the external network via the network node of the mobile network of the first kind and the network node of the mobile network of the second type to the mobile terminal made ⁇ light.
  • the inventive method can preferably also run as off that the mobile terminal sends a data transfer request to the network node of the mobile network of the second type, the network node determines the mobile communications network of the second type, the ad ⁇ ress of the network node of the mobile network of the first type and the mobile terminal in question user data of requesting the network node of the mobile network of the first kind, the Netzkno ⁇ th the mobile network second type sends a confirmation of Da ⁇ tenübertragungsanwelt to the mobile terminal and the transmission data from the mobile terminal via the network node of the mobile network of the second kind and the network node of the mobile network of the first kind transmitted to the access node to the external network.
  • the network node of the mobile radio network of the second type preferably determines the address of the network node of the mobile radio network of the first type from information which it has received from the mobile terminal or has itself stored in the mobile terminal.
  • Vorzugswei ⁇ se confirms the network node of the mobile network of the first kind together with the transmission of user data to the network node of the mobile network of the second kind and the structure of Da ⁇ th transmission path between the two network nodes.
  • This embodiment of the method according to the invention is advantageous since the mobile terminal can thus also send a data transmission request to the network node of the second type for the case in which it is registered with the network node of the mobile network of the first type.
  • the terminal also transmits transmission data to the access node to the external network.
  • the process according to the invention proceeds so that the network nodes of the mobile communications network of the second type according to Beendi ⁇ supply of the data transmission control of the mobile terminal to the network node of the mobile network of the first type returns.
  • this makes it possible that until the next data transmission no signaling between see the mobile terminal and the mobile network of the first kind or the mobile network of the second kind takes place, if the mobile terminal is within one of the confirmed Regist ⁇ r michs capablee.
  • the mobile terminal could also make a new registration at the network node of the mobile network of the second kind. This allows the data transmission service and the control of the network node of the mobile network of the first type to the network node of the mobile ⁇ would pass radio network of the second type.
  • the method according to the invention preferably proceeds in such a way that it is individually checked whether the mobile terminal is to be used the mobile network of the first kind and / or the mobile network of the second kind is entitled.
  • This embodiment of the method according to the invention is advantageous since the separation of different registration areas for the mobile network of the first type and the mobile network of the second type allows a control specific to the mobile terminal or its user as to whether an authorization to use the mobile radio networks exists. This creates a specific access control to the mobile networks of different types, ie beispiels- as to individual radio standards, allowing for gleichzeiti ⁇ ger avoiding unnecessary signaling traffic.
  • the method according to the invention can advantageously also run such that the mobile terminal deposits one of the registration area identifiers on a chip card connected to the mobile terminal and the further registration area identifications in a storage facility of the mobile terminal.
  • This embodiment is preferred because it made it possible for light ⁇ to remain in a high degree with known methods for operating a communication system compatible.
  • a mobile terminal must continue to store only one registration area - or more precisely a registration area identifier - as well as, as a rule, an associated temporary identity on a chip card connected to the terminal.
  • the smart card may be, for example, a so- ⁇ which is used in the context of the GSM standard for the personalization of mobile terminals act called SIM (Subscriber Identity Module) card.
  • the SIM card is usually ⁇ such connected to the mobile terminal that it can be easily separated from the mobile device and connected ⁇ example with another mobile device.
  • the further registration areas confirmed by the mobile radio network of the first type and / or by the mobile radio network of the second type, which are confirmed by the mobile terminal, and / or further tempo- Identities can be stored in a storage device of the mobile terminal.
  • An associated to this temporary identity Re ⁇ is gistr michs capable sufficient for the application of the mobile terminal in the mobile radio network of the first type or in the mobile radio network of the second type using the temporary identity or the temporary identities to clear the up to From ⁇ message used network node to identify.
  • This network node can then, for example, a mobile terminal or its user identifying permanent identity, eg.
  • the new network node can in turn confirm several registration areas and corresponding temporary identities to the mobile terminal.
  • the multiple registration areas as well as the corresponding temporary identities of the first type of mobile radio network and / or the second type of mobile radio network can all be stored on the chip card.
  • the network node of the mobile radio network of the first type performs an authentication of the mobile terminal. This embodiment is preferred, as this can be carried out a verification of the identity of the mobile terminal.
  • the object of the invention underlying will also achieved by a method for operating a communication system with a mobile radio network of the first type and a mobile radio network of the second type and at least one mobile terminal, wherein gistr michs capablee are set up for the mobile networks different Re ⁇ , the method comprising comprising steps of: registering the mobile terminal in a network node of the mobile network of the first type with confirmation at least one registration area identifier of the mobile communications network of the first type, setting up a data transmission path between the mobile terminal and an access ⁇ node to an external network via the network node of the mobile network of the first type and a network node of the mobile ⁇ radio network of the second type, transmitting a made at least one of the bes ⁇ registration area identifiers of the mobile network of the first type containing registration request from the mobile terminal to the network node of the mobile network of the second type, inquiring of the mobile terminal in question user data from the network node of the mobile network of the first kind by the network node of the mobile radio network
  • the registration acknowledgment together with said at least one registration area identifier of the mobile communications network of the first type and the at least one Regist ⁇ r ists capableskennung of the second type mobile radio network are sent a temporary identity or respectively to the respective registration approximate area identifiers associated temporary identity to the mobile terminal.
  • the preference may ⁇ as well as each one temporary identity for the Netzkno ⁇ th of the mobile network the first type and a temporary identi ⁇ ty for the network node of the mobile network of the second type to the mobile terminal to be transmitted.
  • the transmission of the temporary identity or of the temporary identities from the network node of the mobile radio network of the second type to the mobile terminal takes place only when the temporary identity or the temporary identities with respect to the mobile terminal of the network nodes of the mobile network ers ⁇ ter kind together with the at least one registration area identifier of the mobile network of the first kind assigned temporary identity or the assigned temporary identities will be changed or will be assigned or other temporary identities.
  • the inventive method has the advantage that it makes no or only very small changes to the network node of the mobile network of the first kind required. So it may be a network node of a cellular network according to a wireless standard, which is already a long time is Ver ⁇ addition and is used in the network node of the mobile network of the first type at ⁇ play as.
  • the communications system for example a mobile radio network adds a mobile communications network of the second type in the form according to a new wireless standardploge ⁇ , this can be done without the need for extensive changes to the network node of the mobile network of the first type are required.
  • a mobile network usually consists of many network nodes, which is why changes to these network nodes associated with a lot of effort and therefore are preferably avoided.
  • the inventive method is also advantageous ⁇ way, since the second type cellular network is included in the data transmission path already when setting up a data transmission path between the mobile terminal and the access node to the external network of the network node. This happens such that the network node of the mobile radio network of the first type does not directly contact the access node to the external network, but instead the network node of the mobile radio network of the second kind facing the network node of the mobile radio network of the first kind, like an access node to an external one
  • Network behaves.
  • the network node of the mobile network of the second type ⁇ neminte the data transmission path to the actual to ⁇ output node to the external network.
  • 3GPP standardization uses a specific parameter (Access Point Name, APN) that determines the access node to the external network.
  • APN Access Point Name
  • the network node of the mobile radio network of the second type preferably also the original (ie, the actual requested by the mobile terminal) APN is signaled, the network node of the mobile network of the second type extending to the network node of the mobile network of the first type as can gateway behaves, in turn, contact the access node to the exter ⁇ nen network and thus the data transmission Zvi ⁇ rule the mobile terminal and the access node complete.
  • the network node of the mobile radio network of the second kind is also in a certain sense
  • Scope already involved in the control of the service and the mobile device or the user of the mobile device.
  • the inventive method is designed such that the network node of the mobile network of the second type from the access node to the external network for the mobile terminal incoming Studentstra ⁇ diffraction data caches and to the network node of the mobile radio network first type sends, the network node of the mobile network first type calls the mobile terminal in the at least one registration area of the mobile network of the first kind and the network node of the mobile network of the second type calls the mobile terminal in the at least one registration area of Mo ⁇ bilfunknetzes second type.
  • the network nodes of the mobile communications network of the second type that duplicates a ⁇ impinging transmission data that is, the transmission data is the one hand, supply of the network node of the mobile network of the second type for possible future Kochtra ⁇ latched over the wireless network of the second type to the mobile terminal and on the other hand also sent to the Netzkno ⁇ th the mobile network of the first kind.
  • the mobile terminal responds to the network nodes of the mobile communications network of the first type and sends this to the delegation ⁇ diffraction data to the mobile terminal.
  • the inventive method can also take place so ⁇ that the network nodes of the mobile communications network of the second type further intended for the mobile terminal transmission data without buffering to the network node of the mobile networks first type.
  • the need for duplication by the network node of the mobile network of the second type advantageously, the need for duplication by the network node of the mobile network of the second type.
  • This embodiment of the inventive method is advantageous in that the network node of the mobile network thus in the event that he bilen two ⁇ ter kind on his paging of the mo ⁇ Terminal receives no response, all other for the mobile device specific transmission data to the network node of the mobile network of the first kind can forward.
  • the inventive method can also run as from ⁇ preferably, that the mobile terminal responds to the network nodes of the mobile radio network ⁇ second type and that the transmission ⁇ data to the mobile terminal is transmitting.
  • the pros can preferably already a connection between the network node of the mobile network of the second type and the mobile terminal hen ⁇ best. In this case, the transmission of the transmission data to the mobile terminal can be carried out without prior call and response of the mobile terminal.
  • the process according to the invention may also be formed from ⁇ that the network node of the mobile network diffraction data two ⁇ ter Art more specific for the mobile terminal Studentstra ⁇ tet forward each exclusively to the mobile terminal. Sending the additional data transmission to the network node of the mobile network of the first type is thus advantageous ⁇ not legally required.
  • the inventive method can proceed in a manner that is individually tested, whether the mobile terminal for using the mobile radio network of the first type and / or of the mobile radio network ⁇ second kind is authorized.
  • This is advantageous, since thus for different terminals or their users depending on the respective mobile radio network. it can be checked whether there is authorization to use this mobile radio network.
  • the method according to the invention can also run such that the mobile terminal deposits one of the registration area identifiers on a chip card connected to the terminal and the further registration area identifiers in a memory device of the mobile terminal.
  • the chip card connected to the terminal is a SIM (Subscriber Identity Module) card.
  • SIM Subscriber Identity Module
  • an associated temporary identity is preferably stored together with the respective registration area identifier.
  • the present invention further relates to a network node ⁇ for transmitting data in a cellular network of the first type.
  • Such a network node is approximately known, for example in the form of a so-called Serving GPRS Support Nodes (SGSN) from the front to ⁇ aforementioned document 3GPP TS 23.060.
  • SGSN Serving GPRS Support Nodes
  • the present invention has for its object to provide a simple and flexible network node through which the signaling traffic is optimized when changing an inactive mobile terminal between Mobil ⁇ wireless networks of different types.
  • a network node ⁇ for transmitting data in a mobile radio network of the first type having registration means for registering a mobile terminal, transmission means to confirm at least a registration area identifier of the mobile radio network of the first type and at least one registration area identifier of a mobile radio network of the second type to the mobile terminal, means for establishing a data transmission path from the mobile terminal to an access node to an external network and
  • the transmission means of the network node of the mobile network of the first kind can be designed such that together with the at least one registration area ⁇ identifier of the mobile network of the first kind and the at least one registration area identifier of the mobile network of the second kind a temporary identity, each a temporary Identi ⁇ ity for the network node of the mobile network of the first kind and for the network node of the mobile network of the second kind or a temporary identity per registration area identifier are transmitted to the mobile terminal.
  • the network node according to the invention is preferred, since it is configured such that inactive mobile terminals, ie mobi ⁇ le terminals which do not participate to the instantaneous time of egg ner data transmission, first between the cellular network type, and can switch the mobile radio network of the second type and at the same time the signaling traffic between the two mobile networks is minimized or optimized.
  • the object underlying the present invention with regard to the network node is furthermore achieved by a network node for transmitting data in a second type of mobile radio network with registration means for registering the data.
  • Center of a mobile terminal means for expansion and control of a data transmission path from the mobile Endge ⁇ advises over a network node of a cellular network of the first type to an access node to an external network, inquiry means for inquiring of the mobile terminal in question user data from the network node of the mobile network of the first type, wherein the registration of the mobile terminal in the network node of the mobile network of the first type is maintained and transmission ⁇ means for sending a registration of at least one registration area identifier of the mobile network first type and at least one registration area identifier of the mobile network second type registration confirmation to the mobile terminal.
  • the transmission means of the network node of the mobile network of the second type can be designed such that, together with the at least one registration ⁇ area identifier of the mobile network of the first kind and mindes ⁇ least one registration area identifier of the mobile network of the second kind a temporary identity, each a temporary identity for the network node the mobile network of the first kind and for the network node of the mobile network of the second kind or a temporary identity per registration area identifier are transmitted to the mobile terminal.
  • the network node according to the invention is preferred because it is designed such that inactive mobile terminals, ie mobile ⁇ le terminals that are not involved in ei ⁇ ner data transfer at the moment, between the mobile network of the first kind and the mobile network of the second type can change and At the same time unnecessary signaling traffic between the two mobile networks is avoided. Furthermore, it allows the network node according to the invention advantageously ⁇ example, that the network node of the mobile network of the first type of the mobile terminal sends its registration request, not or only slightly changed.
  • the network node a storage cher
  • a storage cher adopted for storing registration area identifiers of the mobile communications network of the first type and of re gistr michs responsibleskennungen of the second type mobile radio network as well as an allocation of the registration areas of the mobile ⁇ radio network of the first type to the registration areas of the mobile network of the second type on.
  • temporary identities assigned to the mobile terminal can also be stored in the memory device.
  • the network node takes over the mobile radio network of the second type the first of the network node of the mobile network type mobile terminal assigned at least one registration area identifier and assigned to the mobile terminal at least one temporä ⁇ re identity.
  • the present invention relates to a communication system.
  • the present invention is based on the object of specifying a simple and flexible communication system by means of which the signaling traffic is optimized when changing an inactive mobile terminal between mobile radio networks of different types.
  • This object is achieved by a Kommuni ⁇ cation system with a MobiIfunknetz first kind with first registration areas and at least one network node, the registration means for registering a mobile terminal, transmission means for confirming at least one registration area identifier of the mobile network of the first kind and at least one registration area identifier of one Mobile radio network of the second kind to the mobile terminal, means for establishing a data transmission path from the mobile terminal to an access node to an external network and means for dynamically establishing a data transmission path between the network node of the first type mobile network and the mobile terminal via a network node of the mobile network second Kind when requesting a data transmission over the mobile network of the second kind, the mobile network of the second kind with second registration areas and the at least one network node and the at least one mobile terminal having receiving means for receiving the at least
  • the communication system according to the invention is preferred, since it allows a use of different registration areas for the mobile network of the first kind and the mobile network of the second type with little modification effort to the existing architecture of the communication system.
  • the above object is erfindungsge ⁇ Gurss solved by a communication system with a MobiIfunknetz first type with first registration areas and at least one network node, the registration ⁇ medium for registering a mobile terminal and Bes ⁇ actuation of at least one registration area identifier of the mobile network of the first kind to the mobile terminal and means for establishing a data transmission path from the mobile terminal to a network node a mobile radio network of the second type, the mobile radio network of the second type with second registration areas and the at least one network node, the registration means for registering the mobile terminal, means for expanding and controlling the REMtragungswe ⁇ ges to an access node to an external network, query means for inquiring from the mobile Terminal-related Nut ⁇ zeraries from the network node of the mobile network of the first kind, the registration of the mobile terminal is maintained in the network node of the mobile network of the first kind, and transmission means for Sending at least one Regist ⁇ r ists capableskennung the mobile communications network of
  • FIG. 1 shows a schematic sketch of the message flow of a first exemplary embodiment of the method according to the invention
  • FIG. 2 shows a schematic sketch of the message flow of a second exemplary embodiment of the method according to the invention
  • FIG. 3 shows a schematic sketch of the message flow of a third exemplary embodiment of the method according to the invention
  • Figure 4 is a schematic block diagram of a first embodiment of the communication system according to the invention with a first exporting ⁇ approximately example of the invention Netzkno least ⁇ and
  • FIG. 5 shows a schematic block diagram of a second exemplary embodiment of the communication system according to the invention with a second embodiment. exemplary embodiment of the network node according to the invention.
  • FIG. 1 shows a schematic representation of the post-directed flow at the end of an embodiment of the method according OF INVENTION ⁇ dung.
  • a mobile terminal ME_1 a network node NK1_1 of a mobile radio network of the first type, a network node NK2_1 of a mobile radio network of the second type, an access node ZNK_1 to an external network and a home database HSS_1 are shown.
  • the vertical lines emanating from these components of a communication system indicate a time course.
  • the horizontal, arrowed bars represent signaling messages and / or transmission data transmitted from the component at which the arrow starts to the component at which the arrow ends with its tip.
  • the mobile terminal ME_1 sends a registration request 21 to the selected one of the mobile terminal ME_1 network node NK1_1 the mobile communications network of the first type.
  • the mobile communications network of the first type is, for example, be an access network entspre ⁇ accordingly a newer wireless standard, while it is at the Mo ⁇ bilfunknetz second type, for example, is an access network according to an older wireless standard.
  • the mobile network of the second type could be, for example, an access network according to the GPRS (General Packet Radio Service) or the UMTS (Universal Mobile Telecommunications System) standard and the mobile network of the first type an access network according to a future mobile radio standard.
  • GPRS General Packet Radio Service
  • UMTS Universal Mobile Telecommunications System
  • the network node NK1_1 registers of the mobile network of the first type when the user of the mobile terminal associated home country or user database HSS_1 than the user and the mobile terminal serving network ⁇ knot.
  • the network node receives NK1_1 of the communication network of the first type ⁇ user data transmitted, such as the allowed for the respective user services of the mobile network of the first type or authentication data.
  • the network node NK1_1 of the mobile radio network of the first type can now perform an authentication of the user or the mobile terminal ME_1 based on the authentication data (not shown in FIG. 1).
  • the network node of the mobile network NK1_1 first type confirmed in a Sig- nal Deutschensnachricht 23 to the mobile terminal ME_1 he ⁇ cessful registration.
  • the network node NK1_1 informs the mobile communications network of the first type to the mobile terminal ME_1 a temporary identity and one or more Registrierungsgebie ⁇ te of the cellular network with the first type.
  • NK1_1 notify the network nodes of the mobile communications network of the first type to the mobile terminal ME_1 a registration area or a plurality of registration areas and, optionally, a temporary identity of the Mo ⁇ bilfunknetzes second type with, wherein the area a registration ⁇ or the plurality of registration areas of his or of their Network coverage ago the registration area or the registration areas of the mobile network of the first kind corresponds or correspond.
  • the assignment according to the coverage areas of the registry Mobilfunknet ⁇ zes the first type to the registration areas of the mobile network of the second type (or more precisely, the assignment of the corresponding registration area identifiers) while in the Network node NK1_1 the mobile network of the first kind or stored in a memory node associated therewith.
  • the registration areas are identified by registration area codes.
  • the at least one registration area and a temporary identity of the mobile network node of the second kind from a scii ⁇ gen registration of the mobile terminal ME_1 in a network such. B. NK2_1, the mobile network of the second kind.
  • the network node NK1_1 of the mobile network of the first kind of the network node, z. B. NK2_1, the mobile network of the second type confirm that the information in question are still valid (not shown in Figure 1).
  • the knowledge of the mapping described above is according to the Netzabde ⁇ registration areas label does not require the mobile radio network of the first type to the registration areas of the mobile network of the second type.
  • the mobile terminal ME_1 stores the registration area identifications wholly or partly on a chip card in the form of a SIM card or in a storage device of the mobile terminal ME_1.
  • the condition is gistr michs capableskennungen By confirming and storing the re- created that the mobile terminal ME_1 between the mobile ⁇ radio network of the first type and the mobile communications network of the second type, that is, within and between the respective registering areas can switch back and forth without a Registration at the network node NK1_1 the mobile network of the first kind or at the network node NK2_1 of the mobile network of the second kind is required.
  • this only applies as long as no data is ⁇ transfer from or to the mobile terminal ME_1, only that is, when the mobile terminal is inactive and ME_1 if it does not leave the registration areas corresponding to the stored registration area identifiers.
  • the mobile terminal ME_1 has not yet set up a data transmission service, which therefore occurs in step 24. All required parameters such. B. an IP (Internet Protocol) address for the mobile terminal ⁇ device ME_1 provided. Furthermore, a data transmission path between the access node ZNK_1 to the external
  • Network and the network node NK1_1 set up the mobile network of the first kind.
  • the corresponding establishment of Acc ütra ⁇ is supply because it basically known as such for example in connection with the GPRS standard.
  • method step 25 specific data is now received from the access node ZNK_1 to the external network for the mobile terminal ME_1 and sent to the network node NK1_1 of the mobile radio network of the first type.
  • the network node NK1_1 calls of the mobile network of the first type, the mobile terminal ME_1 in the registration area or Re ⁇ gistr michs responsibleen the mobile communications network of the first type, that is in its radio standard from.
  • Such a call of a terminal (“paging") is generally known in the field of mobile telephony in its mode of operation.
  • the network node NK1_1 sends the mobile radio network of the first type in parallel to step 26 in the method ⁇ step 27 a request to the network node NK2_1, the gistr michs capablee the corresponding registration area or the corresponding Re ⁇ operates the mobile radio network of the second type, for the purpose of taking over the mobile terminal ME_1 respectively its user.
  • the network node of the Mobilfunknet ⁇ zes first type the network node NK2_1 of the mobile network two ⁇ ter type all relevant parameters to the mobile terminal ME_1 or its users with, such. For example, the associated data transfer service.
  • this roughly corresponds to a so-called "handover" request, as is known from the UMTS standard, however, the essential difference here is that the network node NK1_1 of the first type of mobile network in the acceptance request is only the registration area or the registration areas of the mobile ⁇ radio network of the first kind and not as in a handover otherwise usual tells the desired radio cell.
  • the network node ME_1 NK2_1 Upon receiving the acquisition request for the mobile terminal, the network node ME_1 NK2_1 leads of the mobile network of the second type, a paging of the mobile terminal in ME_1 Regis Trie ⁇ approximate area of the second type mobile radio network. This is indicated in FIG. 1 by method step 28.
  • step 29a the case is illustrated that the answer to the call coming from the mobile terminal ME_1 via the mobile radio network of the second type comes to the network node NK2_1 of the mobile radio network of the second type.
  • the REMtragungsres ⁇ resources between the mobile terminal and the network node ME_1 NK2_1 of the second type mobile communications network are then arranged in a known manner.
  • the network node NK2_1 of the mobile radio network of the second type confirms the acquisition of the mobile terminal ME_1 to the network node NK1_1 of the mobile radio network first type and thus establishes a data transmission path or path from the network node NK1_1 of the mobile network ers ⁇ ter type to the network node NK2_1 of the mobile network of the second kind.
  • the network node NK1_1 of the mobile radio network of the first type now transmits transmission data to the network node NK2_1 of the mobile radio network of the second type, and the server forwards the transmission data to the mobile terminal ME_1.
  • the answer to the call can come from the mobile terminal ME_1 to the network node NK1_1 of the mobile radio network of the first type.
  • the data transmission resources between the mobile terminal ME_1 and the network node NK1_1 of the mobile radio network of the second type are then set up in a manner known per se.
  • step 30b the network node NK1_1 of the mobile radio network of the first type sends the transmission data to the mobile terminal ME_1 and the transfer request to the network node NK2_1 of the mobile radio network of the second type is withdrawn.
  • the mobile terminal ME_1 can be made to execute a registration at the network node NK2_1 of the mobile radio network of the second type.
  • the data transmission service and control go from the network node of the mobile NK1_1 ⁇ radio network of the first type on the network nodes NK2_1 the mobile network of the second type on and a corresponding registration with the home database HSS_1 is required.
  • the mobile terminal can thus ME_1 reside only in a registration area or more Regis Trie ⁇ approximate areas of the mobile network of the second type, while a new registration is required at a change in the mobile network of the first type.
  • the second variant is preferred in which at the end of the data transmission, ie after the data transmission resources have been released, the control of the mobile terminal ME_1 and the data transmission service from the network node NK2_1 of the mobile radio network of the second type to the network node NK1_1 of the mobile radio network first type to be returned.
  • the mobile terminal ME_1 retains the registration area identifications in which it can move. Until the next data transmission there is no signaling between the mobile terminal ME_1 and the communication network of the first kind or the communication network of the second kind, as long as the mobile terminal ME_1 is within the confirmed, ie in the mobile terminal ME_1 stored, registration areas of the mobile networks first and second type emotional.
  • FIG. 2 shows a schematic sketch of the message flow during the course of a second exemplary embodiment of the method according to the invention. Shown here is the case that the mobile terminal ME_1 itself initiates a data transmission and for this selects the MobiIfunknetz first type.
  • the mobile terminal ME_1 as previously described in connection with Figure 1, the mobile communications network of the first type registered with the network node NK1_1 and an associated data ⁇ transmission service is set up between the access node ZNK_1 to the external network and the network node NK1_1 the mobile communications network of the first type.
  • the network node NK1_1 of Mobilfunknet ⁇ zes first type has the mobile terminal ME_1 registration ⁇ areas of the mobile network of the first kind and the Mobilfunknet- zes second type confirmed, ie Figure 2 closes in temporal ⁇ flow to step 24 of Figure 1.
  • the mobile terminal ME_1 now sends a data transmission request to the network node NK2_1 of the mobile radio network of the second type.
  • a request would be rejected by the network node NK2_1 according to known methods, since the network node NK2_1 of the second type mobile radio network does not provide any user data or data transmission service for the mobile Terminal ME_1 or its user or even if he should still have such user data due to a previous registration is not currently responsible for the mobile terminal ME_1 network node.
  • the network node NK2_1 but passes the mobile communications network of the second type is now the address of the network ⁇ knot NK1_1 of the mobile radio network of the first species in the in the data transfer request 42 from the mobile terminal ME_1 notified temporary identity and information communicated from the mobile terminal ME_1 registration area identifier, or the registration area identifier of the registration area from which the data request comes from and asks zer songs from the network node NK1_1 the mobile communications network of the first kind, the groove ⁇ .
  • NK2_1 stores the network node of the mobile network of the second type for the mobile terminal ME_1 a Identi ⁇ fication or address of network node NK1_1 of Mobilfunknet ⁇ zes the first kind. This is especially the case when such o ben NK1_1 described the network node of the mobile network of the first type gistr michs capableskennungen no assignments registration areas or re mobile networks first and second type knows and does not determine these can.
  • As part of this exchange signaling and the data ⁇ is tragungsdienst set up the mobile network of the first type between the network node NK2_1 the mobile network of the second type and the network node NK1_1.
  • the network node of the mobile NK2_1 ⁇ radio network of the second type can perform an authentication of the user or the terminal ME_1 which is not shown in FIG. 2
  • the network node NK2_1 causes the second type mobile radio network the allocation of REMtra ⁇ supply resource for the mobile terminal ME_1 and confirms the mobile terminal ME_1 the data transfer request.
  • the mobile terminal ME_1 can now transmit transmission data to the network node NK2_1 of the mobile radio network of the second type.
  • the network node NK2_1 of the mobile radio network of the second type transmits the data to the network node NK1_1 of the mobile radio network of the first kind and this in turn to the access node ZNK_1 to the external network.
  • decision Speaking of the second variant is advantageously the end of data transmission, the control and data transmission service from the network node of the NK2_1 Mobilfunknet ⁇ zes second type returned the mobile radio network of the first type to the network node NK1_1.
  • This problem can be reduced by assuming that the mobile terminal ME_1 is first registered once in the mobile radio network of the second kind. If the mobile terminal ME_1 now changes into the mobile radio network of the first kind, then the network node NK1_1 of the mobile radio network of the first type can continue the temporary identity for the mobile terminal ME_1 assigned by the network node NK2_1 of the mobile radio network of the second type. This continuation is communicated by the network node NK1_1 of the first type of mobile network to the network node NK2_1 of the second type of mobile network when the user data is requested.
  • the network node of the mobile network of the second type NK2_1 thus does not give the temporary identity used for the mobile terminal ME_1 free and saves the Infor ⁇ mation on which network nodes this temporary identity was transmitted.
  • the network node NK2_1 of the mobile radio network of the second type can reach the network node NK1_1 of the mobile radio network of the first type when the mobile terminal ME_1 is receiving data the network node would NK2_1 gen of the mobile network of the second type übertra ⁇ .
  • a release can take place if the user is no longer registered with the network node NK1_1 of the first type of mobile radio network.
  • This embodiment offers the advantage that the temporary identities do not have to be split between the mobile radio network of the first type and the mobile radio network of the second type. Only the network node NK2_1 of the mobile radio network of the second type manages temporary identities for the mobile radio network of the second type.
  • the network node NK1_1 the mobile network of the first kind can have a separate set of temporary identities, which z. B. can be realized by a new structure of the temporary identity.
  • temporary Identitä ⁇ th two different types are used by temporary Identitä ⁇ th, wherein the one kind is used by the mobile radio network of the first type and the second type of the mobile communications network of the second type.
  • FIG. 3 shows a schematic representation of the message flow during the course of a third exemplary embodiment of the method according to the invention.
  • a mobile terminal ME_2 a network node NK1_2 of a mobile radio network of the first type, a network node NK2_2 of a mobile radio network of the second type, an access node ZNK_2 to an external network and a home database HSS_2 are shown.
  • the mobile terminal ME_2 has selected the mobile communication standard of the first type and provides a registration request 1 at the network node NK1_2 the mobile communications network of the first type.
  • the mobile terminal ME_2 can previously at the network node NK2_2 of the second type mobile communications network have been registered and now, for example due to changed transmission ⁇ conditions make a change to the mobile network of the first kind.
  • the network node NK1_2 of the mobile radio network of the first type After receiving the registration request 1, the network node NK1_2 of the mobile radio network of the first type registers with the home database HSS_2 assigned to the user of the mobile terminal ME_2 as the network node serving the user and the mobile terminal ME_2 of the user. In this case, the network node NK1_2 of the mobile radio network of the first type receives user data, such as e.g. B. the permitted services of the user and also authentication data transmitted.
  • user data such as e.g. B. the permitted services of the user and also authentication data transmitted.
  • the network node NK1_2 the mobile network of the first type can perform an authentication of the mobile terminal ME_2 or its user, which does not Darge in Figure 3 provides ⁇ is.
  • the network node NK1_2 of the mobile network of the first type confirms the registration of the mobile terminal ME_2.
  • the network node NK1_2 informs the mobile communications network of the first type to the mobile terminal ME_2 a temporary identity and at least egg ⁇ ne registration area or, more precisely at least one REGIST r ists capableskennung with the mobile communications network of the first type.
  • the mobile terminal ME_2 stores the received data.
  • SIM Subscriber Identity Module
  • the network node NK1_2 of the mobile radio network of the first type is not or only minimally changed. So the network can ⁇ knot NK1_2 the mobile network the first kind so far only one registration area to the mobile terminal operating ME_2 bes ⁇ , tell how that is.
  • a supporting multiple REGIST r ists capablee by the network node NK1_2 of Mobilfunknet ⁇ zes the first kind is not mandatory.
  • Step 4 All required parameters such. For example, an IP (Internet Protocol) address is provided. Further, a data transmission path between the access node ⁇ ZNK_2 to the external network (ie, the Gateway) and the network node established NK1_2 the mobile radio network of the first type.
  • the network node NK1_2 of the mobile radio network of the first type may be a so-called SGSN (Serving GPRS Support Node) and the access node ZNK_2 may be the external network, for example a so-called GGSN (Gateway GPRS Support Node). It is important that ⁇ be already in process step 4, the network node of the mobile NK2_2 ⁇ radio network is of the second type integrated into the data transmission path.
  • the network node NK2_2 of the mobile network of the second type behaves in relation to the network node NK1_2 the mobile network of the first kind itself as an access node, ie as a gateway to an external network.
  • the network node of the mobile network NK2_2 second kind vervoll- Hopkinst its part, the data transmission to the access node ⁇ ZNK_2 to the external network.
  • a specific parameter is used as part of the 3GPP standardization, namely the so-called Access Point Name (APN), the gateway node to the ⁇ determined to an external network.
  • APN Access Point Name
  • all APN values in the network node ⁇ be NK1_2 the mobile radio network of the first type riert such confi ⁇ that they have the network node NK2_2 the mobile radio network of the second type.
  • the requested by the mobile terminal ME_2 APN usually also the access node is Siert signaled, the network node NK2_2 which is opposite to the network node NK1_2 the mobile communications network of the first type a behaves as gateway node to ⁇ can, for its part, the actual requested access node ZNK_2 to the external network contact and set up the data transmission path.
  • the network node NK2_2 of the mobile radio network of the second type is thus also integrated into the control of the service and of the mobile terminal ME_2.
  • step 5 the mobile terminal ME_2 decides an exchange of the mobile radio network it uses.
  • the wireless standard game as so changed as this is advantageous from the perspective of the mobile terminal ME_2 example, due to the present radio conditions.
  • step 5 proceeds exclusively on the mobile terminal ME_2.
  • different registration areas are set up for the different radio standards, ie for the mobile radio network of the first type and for the mobile radio network of the second type. Since the mobile terminal ME_2 changes the registration area and previously only mindestes a registration area of the mobile network of the first type to the mobile terminal ME_2 bestä ⁇ was Untitled, the mobile terminal ME_2 must again in the communication system and register more accurate second in the mobile radio network type.
  • the mobile radio network of the second type can be, for example, an access network of a new standard added to the communication system, such as the UMTS (Universal Mobile Telecommunications Standard).
  • the mobile radio network of the first type can be, for example, an access network according to the GSM (Global System for Mobile Communication) standard.
  • the mobile terminal ME_2 sends a registration request to the network node NK2_2 the mobile communications network of the second type.
  • the registration request includes prior ⁇ preferably the last confirmed to the mobile terminal ME_2 temporary identity and the mobile terminal ME_2 supplied ⁇ ordered registration area, or at least one of the mobile terminal ME_2 assigned registration areas.
  • the network node NK2_2 of the mobile radio network of the second type can determine the network node NK1_2 of the mobile radio network of the first type.
  • the network node NK2_2 the mobile network of the second kind requested by the network node NK1_2 the mobile network of the first type, the user data, ie example ⁇ , the permanent identity of the user (in the form of so-called IMSI (International Mobile Subscriber identity ty)), authentication data and the parameters the data transfer service.
  • IMSI International Mobile Subscriber identity ty
  • the mobile communications network of the first type accepts.
  • the network node NK1_2 the mobile network of the first type thus retains the Regist ⁇ turing of the mobile terminal ME_2 or its user. It should be sen at this point generally to hingewie ⁇ that the registry specifically is usually done for the user of the mobile terminal ME_2. A corresponding personalization can take place, for example, by means of a SIM card of the mobile terminal ME_2. Furthermore, however, embodiments of the method are also conceivable in which the registration takes place specifically for the mobile terminal ME_2 itself.
  • step 7 of Netzkno ⁇ have th NK2_2 the mobile network of the second type and the network node NK1_2 tion of the mobile network of the first type depending on a registration of the user or the mobile terminal ME_1 of the user and the corresponding user data.
  • the registration of the network node NK1_2 of the mobile radio network of the first type remains unchanged at the home database HSS_2 as the network node serving the user and the mobile terminal ME_2.
  • the Netzkno ⁇ th NK2_2 the second type cellular network is not registered with the Hei ⁇ matchalbank HSS_2.
  • the network node NK2_2 of Mo ⁇ bilfunknetzes confirmed the second type the registration to the mobile terminal ME_2.
  • the network node NK2_2 of Mo ⁇ bilfunknetzes confirmed the second type according to the invention at least one Re ⁇ gistr michs capable the mobile communications network of the first type and Minim ⁇ least a registration area of the mobile network of the second type to the mobile terminal ME_2.
  • a change of the mobile network of the first kind assigned temporary identity of the mobile terminal ME_2 or its user does not take place.
  • the mobile terminal ME_2 can now switch between the mobile radio networks, ie the mobile radio network of the first type and the mobile radio network of the second type, corresponding to, for example, the access networks of two different radio standards, within the respective registration areas, without requiring a re-registration at a network node. This applies as long as there is no data transmission from or to the mobile terminal ME_2.
  • the data transmission of transmission data in the direction from the mobile terminal to the mobile network ME_2 first type o- the second to the mobile network type in itself provides no new functionality is, that in this case be in accordance with known methods ⁇ is proceeded.
  • the mobile terminal ME_2 requests data transmission resources in the just-selected mobile radio network and transmits the transmission data to the network node of the corresponding mobile radio network.
  • the network node NK1_2 of the mobile radio network of the first type or the network node NK2_2 of the mobile radio network of the second type transmits the data to the access node ZNK_2 to the external network. This process is not shown in FIG.
  • step 9 the network node NK2_2 of the mobile radio network of the second type duplicates the transmission data in order to buffer it and at the same time to send it to the network node NK1_2 of the mobile radio network of the first type.
  • the network node of the mobile network of the first type NK1_2 performs after receiving the transmission data for the mobile terminal ME_2 in method step 11, a paging of the mobile Endge ⁇ rätes ME_2 in the registration area or registration in the approximate areas of the mobile network of the first kind.
  • the network node NK2_2 of the mobile radio network of the second type likewise carries out a call-out of the terminal ME_2 in method step 12, specifically in the registration area or in the registration areas of the mobile radio network of the second type.
  • Step 13a indicates the case that the response of the mobile terminal ME_2 on the paging via the communi ⁇ nikationsnetz first type to the network node NK1_2 is the mobile network of the first type.
  • step 14a the network node NK1_2 of Mo ⁇ bilfunknetzes sends the first type then the transmission data to the mobile terminal ME_2.
  • the network node NK2_2 of the mobile radio network of the second type does not receive an answer to its call of the mobile terminal ME_2 and therefore forwards all further transmission data in the direction of the mobile terminal ME_2 to the network node NK1 of the mobile radio network of the first type.
  • the network node NK1_2 of the mobile radio network of the first type may have already set up data transmission resources to the mobile terminal ME_2 when receiving the transmission data in method step 10. In this case, the transmission data are transmitted to the mobile terminal ME_2 (not shown in FIG. 3) without any further method steps.
  • These two processes correspond to be ⁇ known processes, which are realized by the network node NK1_2 of the mobile network of the first kind.
  • the response from the mobile terminal ME_2 can come via the mobile radio network of the second type to the network node NK2_2.
  • the network node sends the mobile networks NK2_2 zes the second type in step 14b, the effetsda ⁇ th to the mobile terminal ME_2. Since the mobile terminal ME_2 resides in the mobile communications network of the second type, the network node of the mobile terminal sends ME_2 NK2_2 of the second type mobile radio network ren no wide ⁇ duplicated transmission data in direction to the network node NK1_2 the mobile radio network of the first type.
  • Figure 4 shows a schematic block diagram of a first embodiment of the communication system according to the invention with a first embodiment of the invention shown SEN node 50.
  • Various components of the communication system are shown by boxes and sketchily indicated drahtlo ⁇ se or wired connections between the components through appropriate lines. Only the most important components and connections for the description and understanding are shown.
  • the network node 50 belongs to a mobile radio network of the first type, which has first registration areas and has registry means 51 for registering a mobile terminal 56 and transmission means 52 for confirming at least one registration area identifier of the mobile network of the first type and at least one registration area identifier of a mobile radio network of the second type to the mobile terminal 56.
  • the mobile networks of the first and second types together with the at least one mobile Terminal 56, the communication ⁇ system.
  • the network node 50 of the mobile communications network of the first type has wei ⁇ terhin means for establishing a data transmission path 53 from the mobile terminal 56 to an access node 59 to an external network, and means for dynamically establishing a data transmission path 54 between the mobile terminal 56 and the node 50 of the mobile communications network of the first Type via ei ⁇ nen network node 55 of the mobile network of the second kind in Anfor ⁇ tion of a data transmission over the mobile network of the second kind.
  • the mobile radio network of the second type comprises second offer Registrtechniksge ⁇ and the at least one network node 55.
  • the mobile terminal 56 has receiving means 57 for are received, ⁇ gene of the at least one registration area identifier of the mobile communications network of the first type and the at least one Regis Trie ⁇ approximate area identifier of the second type mobile radio network by the network node 50 of the cellular network of the first type and a SpeI ⁇ cher sensible 58 for storing at least one the received registration area identifiers.
  • FIG. 5 shows in a schematic block diagram of a second embodiment of the inventive communication system ⁇ with a second embodiment of the Invention ⁇ proper network node 75 of a cellular network of the second type is so- as a network node 70 of a mobile network of the first kind and a mobile terminal 86 shown.
  • the network node 70 of the mobile communications network of the first type has re gistr michsstoff 71 to register the mobile terminal 86 and to confirm at least one Registr michsge- the mobile radio network bietskennung first kind to the mobile terminal 86 as well as means for setting up a data ⁇ tragungsweges 72 from the mobile terminal 86 to the network node 75 of the mobile network of the second kind.
  • the mobile radio network of the second type comprises second offer Registrtechniksge ⁇ and the at least one network node 75 on.
  • This has registration means 76 for registering the mobile terminal 86, means for expanding and controlling the Da ⁇ tenübertragungsweges 77 to an access node 90 to an external network, inquiry means 78 for inquiring of the mobile terminal 86 relevant user data from the network node 70 of the cellular network of the first type, wherein the registration of the mobile terminal 86 in the network node 70 of the Mobilfunknet ⁇ zes first type remains unchanged.
  • the network node 75 has the mobile network two ⁇ ter way via transmission means 79 for transmitting a least one registration area identifier of the mobile communications network of the first type and at least one registration area identifier of the mobile communications network of the second type containing Registry ⁇ confirmation to the mobile terminal 86th
  • the mobile terminal 86 comprises receiving means 87 for receiving the acknowledgment of the at least one registration area ⁇ identifier of the mobile network of the first type from the network node 70 of the cellular network of the first type and the at least one Re ⁇ gistr michs capableskennung the mobile communications network of the first type to- together with the at least one registration area identifier of the mobile communications network of the second type of the network node 75 of Mo ⁇ bilfunknetzes second type on.
  • signaling means 89 are of the mobile network of the first type containing registration request to the network nodes 75 of the mobile communications network of the second type and a memory device 88 recognizable for sending a min ⁇ least one of the confirmed registration area identifiers for depositing at least one of the received registration area identifiers in Figure 5 ,

Abstract

L’invention concerne un procédé d’utilisation d’un système de communication muni d’un réseau de téléphonie mobile de premier type et d’un réseau de téléphonie mobile de second type ainsi que d’au moins un terminal mobile (ME_1), différents secteurs d’enregistrement étant installés pour les réseaux de téléphonie mobile. De cette manière, le procédé conforme à l’invention optimise le trafic de signalisation en cas de changement d’un terminal mobile inactif entre les réseaux de téléphonie mobile. L’invention concerne par ailleurs un nœud de réseau pour la transmission de données dans un réseau de téléphonie mobile et un système de communication.
PCT/EP2006/067753 2005-11-03 2006-10-25 Procédé d’utilisation d’un système de communication, noeud de réseau et système de communication WO2007051745A1 (fr)

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EP06807533A EP1946516A1 (fr) 2005-11-03 2006-10-25 Procédé d utilisation d un système de communication, noeud de réseau et système de communication

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DE102005053013.3 2005-11-03
DE102005053013A DE102005053013A1 (de) 2005-11-03 2005-11-03 Verfahren zum Betreiben eines Kommunikationssystems, Netzknoten und Kommunikationssystem

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DE (1) DE102005053013A1 (fr)
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WO2003090013A2 (fr) * 2002-04-17 2003-10-30 Thomson Licensing S.A. Reseau local sans fil comme reseau mobile terrestre public pour une integration du systeme de telecommunication/reseau local sans fil
WO2004002051A2 (fr) * 2002-06-21 2003-12-31 Thomson Licensing S.A. Enregistrement d'un reseau local sans fil comme zone de routage du systeme universel de telecommunication avec les mobiles (umts) en vue d'un interfonctionnement reseau local-umts

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EP1079655A1 (fr) * 1999-08-23 2001-02-28 Lucent Technologies Inc. Optimisation de RAU pour UMTS à l'état URA en communication
WO2003090013A2 (fr) * 2002-04-17 2003-10-30 Thomson Licensing S.A. Reseau local sans fil comme reseau mobile terrestre public pour une integration du systeme de telecommunication/reseau local sans fil
WO2004002051A2 (fr) * 2002-06-21 2003-12-31 Thomson Licensing S.A. Enregistrement d'un reseau local sans fil comme zone de routage du systeme universel de telecommunication avec les mobiles (umts) en vue d'un interfonctionnement reseau local-umts

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