EP1080572A2

EP1080572A2 - Arrangement to interconnect users and service providers

Info

Publication number: EP1080572A2
Application number: EP99950375A
Authority: EP
Inventors: Martin Johansson; Kari Jussila; Leif BYSTRÖM
Original assignee: Telia AB
Current assignee: Telia AB
Priority date: 1998-05-08
Filing date: 1999-05-04
Publication date: 2001-03-07
Also published as: NO20005516D0; SE9801604D0; SE9801604L; NO20005516L; WO1999059346A3; EE200000636A; WO1999059346A2

Abstract

The invention relates to an arrangement to interconnect users and service providers to, independent of qualities of different carrier services or specific networks and access forms, transmit information between users and service providers. The invention provides an interface with specified qualities to respective interconnect the user and the service provider with a connectivity network which includes management system and the physical transmission equipment to transmit information between the user and the service provider. Preferably the interfaces are dynamically adaptive and have adaptive management qualities.

Description

ARRANGEMENT TO INTERCONNECT USERS AND SERVICE PROVIDERS

FIELD OF THE INVENTION The present invention relates to an arrangement to interconnect user and service providers, and more exactly such an arrangement to, independent of qualities of different carrier services or specific networks and access forms, transmit information between users and service providers. The invention provides on the one hand an interface with specified qualities which can be changed dynamically, and on the other a connectivity network which includes management system and the physical transmission equipment .

PRIOR ART

To-day services which are delivered via the telephone network, the Internet, the Cable-TV network etc are tailor- made to the network or the carrier which transmits the service from the service provider. By that the services will be totally dependent on the qualities of a specific network and the system will be locked both from the user's and the service provider's point of view.

The present invention solves this problem by providing a common, general control level between the user and the service provider. According to the invention, connectivity products with different performances which can be adapted dynamically to different requested services are offered. At the same time the connectivity products have uniform standardised interfaces both to the user and the service provider .

SUMMARY OF THE INVENTION

Consequently the present invention provides an arrangement of the above mentioned kind to interconnect users and service providers . According to the invention, the invention includes interfaces which have specified qualities to respectively interconnect the user and the service provider with a connectivity network which transmits the information between the user and the service provider.

Preferably the interfaces are dynamically adaptive and have adaptive management qualities.

The invention is defined in enclosed patent claim 1, whereas preferred embodiments are given in the subclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in detail below, with references to enclosed figures in which:

Figure 1 is a diagram over a structure in layers of services and networks according to the invention.

Figure 2 is a block diagram which describes the relation between user, service provider, and telecommunications operator according to the invention.

Figure 3 is a diagram over the construction of a connectivity product according to the invention.

Figure 4 is a general diagram over the arrangement between user and service provider according to the invention, and

Figure 5 is a diagram similar to Figure 4, with details of a connectivity network according to the invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

To avoid that an end user service becomes dependent on the qualities of a specific network, or that an end user service becomes dependent on qualities of different carrier services, it is desirable to have a common control level which can be regarded as the "waist" of an hour-glass. In Figure 1 is shown different services in an upper layer, and different networks and access forms in a lower layer with a general control level in between. This means that a plurality of end user services can make use of a plurality of networks and access forms if all are using a common independent control level containing general connectivity products. It will be even more important that a telecommunications operator in a well-defined way has his/her activity arranged in layers according to the demands which will be in the future regarding roles, responsibility and regulation aspects. End user services and connectivity must be distinguished between and be packeted as products each.

To initiate connectivity in a centralised way over one in layers well-defined interface, and via management systems instead of via signalling towards the network elements, will give several advantages. I. a. it will result in that respective network technology and in its belonging physical resources can be used in a more optimal way. To secure quality of signalling towards network elements are otherwise required a lot of redundancy and over-capacity. End user services and carrier networks may evolve each on their pre-conditions and technical progress without being dependent on each other. In addition more qualities can be offered to the connectivity services if they are initiated via management systems . It is important to realise that connectivity is an affair in itself. In Figure 2 is shown graphically how the connectivity is structured according to the invention. A Connectivity Provider's (CP) only customer are Service Providers (SP) . The application users who use the connectivity (consumers) are customers to Service

Providers. Notice that the telecommunications operator also can be Service Provider.

There consequently are two alternative ways of initiating connectivity, either via a centralised interface via management system (Connectivity Services in Figure 2) , or via signalling directly towards the network elements (Connectivity and Terminal Connection Services) . The latter is predominant today. For both cases applies that the service for which the service shall be used must be pre- ordered at a service provider. A connectivity provider has only one product field to charge the service provider for, namely to transmit multimedia information between endpoints of the connectivity network either point-to-point, point-to-multipoint, or multipoint-to-multipoint. Two basic products exist:

• Best-effort connectivity: Only the access point in the network is specified, as to the rest no guarantees are given related to control and handling of resources in the connectivity network. No quality can be guaranteed. • Resource-reserved connectivity: A certain quality of the connectivity is guaranteed for all types of connectivity which require control and handling of resources in the connectivity network.

The new concept of this invention is that these two basic products can be packeted in different ways to specific connectivity products by varying bandwidth, traffic parameters and quality parameters (Quality of Service; QoS) and add qualities depending on need, to be tailor-made for a service provider's services. Examples can be connectivity products which support IP-telephony, VLAN- services, TCSL-LAN, video conference, Internet-access, e- mail, film distribution, interactive multimedia games etc. These specific connectivity products are of a dynamic character; they can be created and deleted at short notice depending on the multimedia-services they shall support. Examples of bandwidth are : • Medium high bandwidth: Everything from narrow band to the order of several Mbit/s on average for the end user service . • Propagation delay: The time which is allowed for information to propagate over the network. • Delay jitter: The allowed variation of delay in the connectivity. Mainly depending on delays in the queues in, for instance, IP-routers or ATM-switches.

• Loss rate: The probability that data will be lost. Examples of traffic parameters are:

• Max . bandwidth : The maximal number of bits which will be delivered to the network.

• Burstiness: Measure of the burstiness of the traffic which the end user service will deliver. The qualities which can be added to the specific connectivity products are:

• FCAPS- functionality i .e . Fault, Configuration, Accounting, Performance, Security; consequently general management functionality belonging to a connectivity service.

• Mobility functionality i.e. terminal, personal respective session mobility for the connectivity service.

• The possibility to handle a multiple of mutually related instances of connectivity products, initiated by a service provider, as a unit. If one of the connections goes down, all the other instances perhaps also shall be disconnected .

What qualities that can be offered depends to a great extent on how the connectivity has been initiated; management-based, or signalled towards network elements.

Generally can be said that more qualities can be offered if the connectivity is initiated management-based.

The basic connectivity products with specifications plus possibly qualities are packeted as products to fit end user services which are offered by service providers, as is shown in Figure 3.

The entry to the connectivity provider's connectivity network will only be through the specific connectivity products. The connectivity products can be accessed either via centralised interface via management system (called

ConS-RP in Figure 4 and 5) for service providers, or via signalling directly towards the network elements (called TCon-RP in Figure 4 and 5) for the end users (CPE) .

The connectivity provider's connectivity network consists of technology independent management systems, technology specific management systems, and the physical transmission equipment which consists of a heterogeneous collection of switches, transmission equipment and adapters belonging to different network technologies. In the management systems the connectivity products which have been offered over the centralised interface which is called ConS-RP in Figure 5, are implemented. The connectivity products over TCon-RP, on the other hand, are principally implemented in the network elements as today.

The invention can be used in all interactive and distributive end user services which telecommunications operators will produce, if they have arranged their activity in layers for service providers and connectivity providers. The invention is only limited by the following patent claims.

Claims

PATENT CLAIMS

1. Arrangement for interconnection of users and service providers, c h a r a c t e r i s e d in interfaces which have specified qualities to respective interconnect a user and a service provider with a connectivity network, to transmit information between the user and the service provider.

2. Arrangement according to patent claim 1, c h a r a c t e r i s e d in that the interfaces are dynamically adaptive.

3. Arrangement according to patent claim 2, c h a r a c t e r i s e d in that the interfaces has an adaptive bandwidth from narrow band to several Mbit/s.

4. Arrangement according to patent claim 2, or 3 , c h a r a c t e r i s e d in that the interfaces have adaptive quality parameters (QoS) such as propagation delay, delay jitter, loss rate.

5. Arrangement according to patent claim 2, 3, or 4 , c h a r a c t e r i s e d in that the interfaces have adaptive traffic parameters such as max. bandwidth and burstiness .

6. Arrangement according to any of patent claims 2-5, c h a r a c t e r i s e d in that the interfaces have adaptive management qualities.

7. Arrangement according to patent claim 6, c h a r a c t e r i s e d in that the interfaces have a general management functionality related to, for instance, fault, configuration, accounting, performance, security (FCAPS) .

8. Arrangement according to patent claim 6, or 7, c h a r a c t e r i s e d in that the interfaces have a general mobility functionality related to, for instance, terminal, session, and personal mobility.

9. Arrangement according to any of the previous patent claims, c h a r a c t e r i s e d in that the connectivity network includes technology independent management systems, technology specific management systems, and physical transmission equipment related to different network technologies .

10. Arrangement according to any of the previous patent claims, c h a r a c t e r i s e d in that it supports IP-telephony, VLAN-services , TCS LAN, video conference, Internet-access, e-mail, film distribution, interactive multimedia games.