EP1757015A1 - Reseaux de communications - Google Patents

Reseaux de communications

Info

Publication number
EP1757015A1
EP1757015A1 EP05744393A EP05744393A EP1757015A1 EP 1757015 A1 EP1757015 A1 EP 1757015A1 EP 05744393 A EP05744393 A EP 05744393A EP 05744393 A EP05744393 A EP 05744393A EP 1757015 A1 EP1757015 A1 EP 1757015A1
Authority
EP
European Patent Office
Prior art keywords
network
data
communications network
service
data communications
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05744393A
Other languages
German (de)
English (en)
Inventor
John Boden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone Group PLC
Original Assignee
Vodafone Group PLC
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 Vodafone Group PLC filed Critical Vodafone Group PLC
Publication of EP1757015A1 publication Critical patent/EP1757015A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1425—Charging, metering or billing arrangements for data wireline or wireless communications involving dedicated fields in the data packet for billing purposes

Definitions

  • the present invention relates to a method of and system for enabling a first device to use a service provided via a data communications network linking the first device to a second device, and also to a method of providing a service to a device registered with a first communications network, the service being provided via a second communications network.
  • a method of enabling a first device to use a service provided via a data communications network linking the first device to a second device including routing messages between the first device and the second device via the data communications network, wherein the messages include information indicative of the service to which they relate.
  • a system for enabling a first device to use a service provided via a data communications network linking the first device to a second device including means for routing messages between the first device and the second device via the data communications network, wherein the messages include information indicative of the service to which they relate.
  • a method of providing a service to a device registered with a first communications network, the service being provided via a second communications network including generating a plurality of data packets for transmitting data relating to the service via said second communication network, each of said data packets including an element that identifies the particular request for service and is interpretable by the second communication network such that the second communication network can obtain payment from the first network form transmitting the data packet in respect of that service.
  • FIG. 1 shows schematically the elements of a communications system in accordance with the present invention.
  • Figure 2 shows the transmission of data via a plurality of carriers.
  • SMS Short Message Service
  • MMS Multimedia Messaging Service
  • GPRS General Packet Radio Service
  • the third generation partnership project (3 GPP) has recently defined a new concept known as IMS (IP - based Multimedia Subsystem).
  • IMS IP - based Multimedia Subsystem
  • the IMS is a set of core network servers sitting behind the GGSN (which will be briefly described below) in the packet switched domain. These servers are introduced in order to process signalling between end users.
  • the aim of IMS is to allow users such as mobile telephone network operators to provide services to their subscribers as efficiently and effectively as possible.
  • the IMS architecture is likely to support the following communication types: voice, video, instant messaging, "presence" (a user's availability for contact), location-based services, email and web. Further communication types are likely to be added in the future.
  • Session Initiation Protocol SIP
  • the SIP protocol is a session-based protocol designed to establish IP based communication sessions between two or more end points or users.
  • SIP is used as a means of signalling, end-to-end, the initiation, modification and termination of packet switched sessions. Once a SIP session has been established, communication between these end points or users can be carried out using a variety of different protocols (for example those designed for streaming audio and video). These protocols are defined in the SIP session initiation messages.
  • sessions can be established between mobile devices that allow a variety of communication types to be used and media to be exchanged.
  • the sessions are dynamic in nature in that they can be adapted to meet the needs of the end users. For example, two users might start a session with an exchange of instant messages and then decide that they wish to change to a voice call, possibly with video. This is all possible within the IMS framework. If a user wishes to send a file to another user and the users already have a session established between each other (for example, a voice session) the session can be redefined to allow a data file exchange to take place. This session redefinition is transparent to the end user.
  • the IMS provides a separation of the "control plane" and the "user plane".
  • the control plane performs the required signalling, and includes the relevant application protocol and the signalling bearer for transporting the application protocol messages.
  • the application protocol is used for setting up the radio access bearer in the radio network layer.
  • the user plane transmits data traffic and includes data streams and data bearers for the data streams.
  • the data streams are characterised by one or more frame protocols specified for that interface.
  • the user plane carries data for use by a receiving terminal - such as data that allows a voice or picture to be reproduced - and the control plane controls how the data is transmitted.
  • FIG. 1 shows the elements that allow a first terminal 1 to exchange data with a second terminal 3.
  • the mobile terminal 1 communicates wirelessly with its home mobile telecommunications network 5 (that is, the network with which the user of the terminal 1 has a subscription) via a radio access network (RAN) - not shown.
  • the RAN handles subscriber access, and includes base stations and concentration nodes.
  • Each RAN is associated with a serving GPRS support node (SGSN) - not shown.
  • the SGSN handles the data traffic of users in a geographical service area.
  • Gateway GPRS support node (GGSN) 7 provides the interface between the radio network and an IP network (for example, it performs protocol conversion between the GPRS and IP environments).
  • the GGSN 7 provides an interface between the mobile telecommunications network 5 and IMS network 9.
  • the terminal 1 In order to establish a communication session, the terminal 1 generates a packet data protocol (PDP) context.
  • PDP packet data protocol
  • the PDP context defines parameters that support the flow of data traffic to and from terminal 1.
  • the parameters that are set are the identifier of the external packet data network with which the terminal 1 wishes to communicate, a PDP address recognised in that network (for example, an IP address for service over the Internet), the address of the GGSN 9, quality of service (QoS) parameters etc.
  • the IMS network 9 includes a Proxy Call Session Control Function (P-CSCF) element 11 that provides an initial interface between the data received from the GGSN 7 and the IMS network 9.
  • P-CSCF Proxy Call Session Control Function
  • the mobile terminal 1 obtains the address of the P-CSCF 11 either as part of the session management procedures performed when establishing IP connectivity (that is, the address of the P-CSCF 11 is provided during the PDP context activation process).
  • the address of the P- CSCF 11 may be resolved after the PDP context activation process through a dynamic host configuration protocol (DHCP) query/response process (in which case the mobile terminal 1 will request an IP address and other information in order to establish IP sessions).
  • DHCP dynamic host configuration protocol
  • S-CSCF Serving-CSCF
  • HSS Home Subscriber Server
  • S-CSCF 13 interacts with the SIP server 15 and HSS 17 to provide session control and security.
  • the HSS 17 holds variables and identities for the support, establishment and maintenance of calls and sessions made by subscribers to mobile telecommunications network 5. This information includes the IMSI of each subscriber, security variables and location information.
  • Interrogating-CSCF (I-CSCF) element 19 allows subscribers of the mobile telecommunications network 5, or subscribers roaming in the network, to register with the network.
  • the I-CSCF 19 deals with registration, routing and forwarding of SIP messages and charging.
  • the second mobile terminal 3 is registered with a second mobile telecommunications network 5A, which has associated with it elements corresponding to those described above in relation to the first mobile telecommunications network 5 with which mobile terminal 1 is registered.
  • These elements of the second mobile telecommunications network 5 A are designated with the same reference sign as the corresponding equivalent elements of the first mobile telecommunications network 5 but with the suffix "A".
  • a communication session is established between the first mobile terminal 1 and the second mobile terminal 3 when those mobile terminals are registered with respective mobile telecommunications networks 5 and 5A
  • the invention is also applicable to the establishment of the communication session where one of the terminals operates in a mobile telecommunications network and the other of the terminals operates in a different type of network, or where both the terminals are registered with the same network - which may be a mobile telecommunications network or other type of network.
  • the mobile terminal 1 When a communication session is initiated by the mobile terminal 1 is it possible to access the Internet 21 in a known manner via mobile telecommunications network 5 and GGSN 7, for example using WAP browser software present on mobile terminal 1.
  • the user of mobile terminal 1 may obtain services from the Internet 21 and may exchange data with mobile terminal 3 via the Internet 21. While such an arrangement allows the user of mobile terminal 1 to obtain a huge diversity of information and services from the Internet 21, there are significant disadvantages with such an arrangement.
  • the user of mobile terminal 1 will generally pay to access the Internet 21 on a per second or per byte basis.
  • a large amount of unwanted data may be transmitted to the mobile terminal 1 - for example as unsolicited emails or advertisements.
  • the user of mobile terminal 1 will incur costs for obtaining this unwanted data because the user pays to receive data on a per second or per byte basis.
  • the user of mobile terminal 1 pays to receive messages sent by others whether or not those messages are wanted. This charging mechanism is sometimes referred to as "called party pays".
  • Mobile telecommunications networks in Europe (except when a subscriber is roaming) operate on a "calling party pays" principle - that is, there is no charge for receiving a message or voice call.
  • the embodiment described aims to provide an improvement, which may be made available to the user of mobile terminal 1 in addition to or instead of access to the Internet 21 in the manner described above.
  • an alternative internet 23 that is, a set of interconnected networks and not necessarily the Internet
  • messages relating to a communication session transmitted via the internet 23 include information indicative of the particular service to which they relate. This facilitates the control of the messages sent and the communications session relating to a specific service. Further, it enables a charge to be levied to the user of mobile terminal 1 for a particular service provided during the communication session.
  • the user need not be charged per second or per byte, but rather the user will incur a predetermined charge for being provided with a particular service.
  • This is highly desirable for the user of mobile terminal 1 because, before initiating a request for a service, the user of mobile terminal 1 will know the costs that will be incurred, and will know that, in exchange for payment of this know cost, a particular service will be provided. Also, it encourages service providers (which may not necessarily to operated or directly controlled by the mobile telecommunications networks) to provide high quality, good value services because they will be paid for the provision of the service rather than by some other mechanism. If the service is not requested and delivered the service providers will receive no payment.
  • the mobile terminals 1 and 3 are authenticated prior to accessing the internet 23.
  • the mobile terminal 1 is provided with, or associated with, authentication storage means for storing predetermined authentication information for authenticating that mobile terminal or a particular user thereof.
  • the authentication storage means for storing the predetermined information is removable and can thus be taken by the user and inserted into any terminal which is adapted to receive it, so as to enable that user to be authenticated in respect to a transaction to be carried out by that user with that terminal.
  • the means for storing the predetermined information is in the form of a smart card.
  • the smart card is a Subscriber Identity Module or SIM of the type used in and for authenticating the use of handsets in a mobile or cellular telecommunications network (networks 5 and 5 A in Figure 1) - such as a GSM (Group Special Mobile) or 3G (Third Generation) network.
  • a GSM Group Special Mobile
  • 3G Third Generation
  • Such a network will store details of its users' (subscribers') SIMs.
  • a user's handset is authenticated (for example, when the user activates the handset on the network with a view to making or receiving calls) by the network sending a challenge to the terminal incorporating that SIM, in response to which the SIM calculates a reply (dependent on the predetermined information held on the SIM - typically an authentication algorithm and a unique key Ki) and transmits it back to the network which checks it against its own information for that user or subscriber in order to complete the authentication process.
  • the SIM can be used in or in association with the terminal so that the same form of authentication process can be carried out.
  • the authentication process can be carried out by that network.
  • the authentication process being described does not necessarily authenticate the human identity of the user.
  • cellular telecommunication networks have pre-pay subscribers who are issued with SIMs in return for pre-payment enabling them to make calls on the network.
  • the identity of such pre-pay subscribers is not known (or not necessarily known) by the networks. Nevertheless, such a user cannot make use of the network until the network has authenticated that user's SIM - that is, has confirmed that such user is a particular user who has a particular pre-paid account with the network.
  • the SIMs of such pre-paid users or subscribers could equally well be used (in the manner described) in or in association with data processing apparatus or computers, for the purposes of authenticating that user.
  • the SIM need not take the form of a physical (and removable) smart card but instead can be simulated by being embedded in the data processing apparatus or computer in the form of software or represented as a chip for example.
  • the authentication process may facilitate a transaction between the terminal and a third party.
  • the authentication process is carried out by a telecommunications network, or by some other system, to which the user of the SIM is a subscriber, the satisfactory completion of the authentication process would then be communicated by that network or system to the third party - to enable the transaction to proceed.
  • a payment by the user to the third party may be involved.
  • An arrangement as described above, in which the authentication process is carried out by a telecommunications network or other centralised system to which the user is a subscriber may facilitate the making of such payments and can be advantageous where (as may often be the case) the payment is for a small amount (for example, payment in return for receipt of information - e.g. weather or traffic information, or for temporary use of specific software); in such a case, the payment can be debited to the account of the subscriber held by the telecommunications network or other centralised system - and then, of course, passed on to the third party, perhaps after deduction of a handling charge.
  • the authentication for performing a transaction may be preformed by the mechanism described in the applicant's co-pending patent application No. GB0224228.7 and in WO2004036866, which are hereby fully incorporated by reference.
  • the present embodiment is primarily concerned with obtaining a service from internet 23.
  • the mobile terminal 1 is authenticated with network 5 using the SIM present in mobile terminal 1.
  • a PDP context is created to connect to IMS network 9 via GGSN 7.
  • Connection to internet 23 is via a gateway 25, which controls access to the IMS network 9 and enforces any required policies relating to use of the internet 23.
  • the gateway 25 may include a mechanism for blocking unsolicited messages from passing from the internet 23 to the IMS network 9.
  • a corresponding gateway 27 is provided between the internet 23 and the second IMS network 9A.
  • third party service providers 29 and 31 may also access the internet 23 via their respective gateways 33 and 35.
  • the solid line 37 shows the control plane signalling and the dashed line 39 shows the user plane signalling.
  • the control plane signalling may implement services by means of the SIP application server 15 - for example, application implementation and execution, integration of services, collection of charging information and interconnection for message handling.
  • the control plane signalling may also, via P-CSCF 11 and I-CSCF 13, perform call/session control, collection of charging information, message routing and interconnection handling, and provide messaging services based on "pager mode" and massaging and communication services based on "session mode”.
  • the user plane signalling provides bearer connectivity and control, and services such as voice calls, videotelephony, "chat" and browsing using the conventional Internet 21.
  • the internet 23 may for example be a GPRS roaming exchange (GRX) network of generally known type or any alternative IP network intended for the same or similar purpose.
  • GRX networks provide an interface that connects together mobile telecommunications networks and allows the transmission of IP based communications between respective mobile telecommunications networks.
  • Conventional GRX networks allow a roaming mobile terminal user to send and receive GPRS traffic when away form their home network.
  • the GRX network controls the routing of the IP data packets so that they are delivered to the appropriate address.
  • the user of mobile terminal 1 may select this service using the graphical user interface (for example a menu) of the mobile terminal 1.
  • the user will also select the user of mobile terminal 3 as the party with whom they wish to play the game.
  • the mobile terminal 1 then generates an appropriate PDP context which is used it to establish a communications link with IMS network 9.
  • the nature of that the service request is recognised by the IMS network 9 and appropriate data packets for providing the requested a gaming service on generated. These data packets are for transmission to the mobile terminal 3 via internet 23 and the intermediate components.
  • the data packets are not sent in the conventional manner as IP data packets that may be received by the user of mobile terminal 3 that user making a separate, independent connection to the internet 23 (which will be paid for by the user of mobile terminal 3).
  • IP data packets may be received by the user of mobile terminal 3 that user making a separate, independent connection to the internet 23 (which will be paid for by the user of mobile terminal 3).
  • Such a conventional arrangement would result in the users of both mobile terminals 1 and 3 being charged on a per second or per byte connection to internet 23.
  • the request by the user for game play is treated as a request for a particular service - which has a predetermined cost to the user (for example, a fixed cost for completion of a single game).
  • the IMS network 9 generates data packets to allow signalling between the mobile terminals 1 and 3 via the internet to allow game play.
  • each data packet includes a component that identifies the data packet as relating to the particular service.
  • the data packet includes the following components: the identity of mobile terminal 1, the game to be played and the identity of mobile terminal 3.
  • the internet 23 (which may be owned and operated independently of the mobile telecommunications networks 5 and 5 A) may render a charge for carrying the data packets, in respect of that service, to the network 5.
  • the charge to the user of mobile terminal 1 (the network of the "calling party") for game play will be set with the expectation that such charges for data packet transmission will be incurred.
  • the charging mechanism described above is significantly different from the conventional Internet model.
  • the each network within the Internet might make a charge to the mobile telecommunications network 1 in dependence of the total amount of data carried over a particular period (for example, one month).
  • the internet 23 may comprise a plurality of separate networks or carriers (similar to the Internet).
  • the component that identifies the data packet as relating to the particular service is recognisable to each of the networks or carriers, and each may make a charge for data transmitted in respect of that service to the mobile telecommunications network 1.
  • Figure 2 illustrates such an arrangement.
  • the internet 23 includes four carriers A, B, C and D which carry a data packet between mobile terminal 1 and mobile terminal 3 (various intermediate components have been omitted from Figure 2 for the sake of simplicity).
  • Each carrier will render a charge to the originating network 5 for carrying the data packet, as will the terminating network 5A.
  • carrier A will charge 0.0 lp
  • carrier B will charge 0.005p
  • carrier C will charge 0.0 lp
  • carrier D will charge 0.002p
  • terminating network 5A will charge O.lp.
  • the tariff charged by mobile network 5 for the service would be such as to recoup these costs from the subscription of the mobile terminal 1 with the network.
  • the arrangement shown in Figure 2 could be considered as analogous to the mechanism for charging a roaming subscribed making a conventional circuit switched voice call.
  • the roamed network will make a charge to the home of the subscriber for carrying the call, and this will be passed to the subscriber by an appropriate roaming tariff.
  • This is relatively straightforward to achieve because, for example, GSM networks were developed to allow roaming.
  • the calling party is known to the carrier because their IMSI is transmitted as part of the circuit switched signalling. This is not the case for conventionally transmitted IP packets over the Internet.
  • the internet 23 (and/or networks comprising the internet 23) are not necessarily specifically designed for providing mobile telecommunications services - they may be any type of network capable of transmitting data packets. However, by including in the data packet an indicator of the service to which it relates, the present embodiment allows charges to be based on use of a service.
  • An agent may create an agreement between each of the carriers and offer a service to mobile networks 5 and 5A (and other networks that access the internet 23) for delivering data packets across a plurality of carriers.
  • a fee charged to a network by the agent for use of the carriers will be partially apportioned to those carriers when the are used.
  • the arrangement described above in respect of the internet 23 may allow standardised data compression techniques to be used for the transmission of data packets.
  • the charges rendered by the respective carriers or agents may include a charge to purchase rights to use "content", such as a movie clip.
  • the charging on the basis of a particular service may be varied in dependence upon network capacity in order to smooth or equalise available transmission capacity.
  • the terminals could be 3G(UMTS) terminals or a terminal using any suitable technology that is able to originate messages that can be carried across the other networks.
  • the terminals are not necessarily mobile terminals.
  • the "calling party pays" principle will be applied.
  • both terminals will generally transmit and receive data during the communication session.
  • the calling party can be considered to be the party that initiated the communication session.
  • the present invention is not restricted to an arrangement where the calling or communication session initiating party pays for a particular service.
  • the embodiment described provides an arrangement where the data packets transmitted include information indicative of the service to which they relate. This allows a charge to be made that relates to a particular service. This information allows any party to be charged in a controlled manner. For example, instead of the calling or communication session originating party paying, a recipient might pay.
  • a user uses their terminal to access a search engine (such as Google) to do an Internet search
  • the user of the terminal might be charged by the search engine, which charge covers the cost of the data both sent from and received by the terminal.
  • a search engine such as Google
  • the user of a terminal communicates with a retailer to order and pay for goods electronically, that retailer might choose to pay for the communication session as part of its customer service.
  • a different arrangement might apply when a user of a first terminal wishes to play a game with the user of a second terminal.
  • the user that is charged for the game play might be the user that loses the game.
  • the charge levied to the user might include a component which is credited to the winner of the game.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des communications IP entre terminaux (1) et (3), via des réseaux mobiles respectifs (5, 5A), et des réseaux IMS (9, 9A), et via Internet (23). Les messages relatifs à un service particulier sont fournis avec un élément qui permet d'identifier le service et qui peut être interprété par Internet (23). Ce type d'élément permet de contrôler la transmission de message concernant une demande de service spécifique, et permet aussi la taxation de terminal mobile sur la base de l'utilisation de service spécifique. Une partie du montant de la taxation peut être partagée entre des réseaux qui, sur Internet (23), acheminent les messages et facilitent la fourniture de service.
EP05744393A 2004-05-25 2005-05-16 Reseaux de communications Withdrawn EP1757015A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0411680A GB2414629B (en) 2004-05-25 2004-05-25 Communications networks
PCT/GB2005/001864 WO2005117343A1 (fr) 2004-05-25 2005-05-16 Reseaux de communications

Publications (1)

Publication Number Publication Date
EP1757015A1 true EP1757015A1 (fr) 2007-02-28

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Application Number Title Priority Date Filing Date
EP05744393A Withdrawn EP1757015A1 (fr) 2004-05-25 2005-05-16 Reseaux de communications

Country Status (3)

Country Link
EP (1) EP1757015A1 (fr)
GB (1) GB2414629B (fr)
WO (1) WO2005117343A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391873B2 (en) * 2006-07-21 2013-03-05 Qualcomm Incorporated Systems and methods for coordinating supplementary services for voice telephone calls in a centralized fashion
US7764963B2 (en) * 2007-04-11 2010-07-27 Cisco Technology, Inc. GW coupled SIP proxy
US8116729B2 (en) * 2009-01-13 2012-02-14 T-Mobile Usa, Inc. System and method for peer-to-peer transfer of multimedia content and reconciliation thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530132A (ja) * 1991-07-24 1993-02-05 Fujitsu Ltd Ａｔｍ網における課金方式
FI108592B (fi) * 2000-03-14 2002-02-15 Sonera Oyj Laskutus langatonta sovellusprotokollaa käyttävässä matkapuhelinjärjestelmässä
GB2376845B (en) * 2001-06-19 2006-02-08 Ericsson Telefon Ab L M Association of charging between communication systems

Non-Patent Citations (1)

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Title
See references of WO2005117343A1 *

Also Published As

Publication number Publication date
GB2414629B (en) 2009-02-18
GB0411680D0 (en) 2004-06-30
GB2414629A (en) 2005-11-30
WO2005117343A1 (fr) 2005-12-08

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