Arranging packet data connections in office system

• US 20020080757A1
• Filed: 12/13/2001
• Published: 06/27/2002
• Est. Priority Date: 12/15/2000
• Status: Active Grant

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Zilliacus, Petteri, Rautiola, Markku, Narvanen, Kai
• Granted Patent: US 7,420,964 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/14 Backbone network devices
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

A method for establishing a packet data connection in a telecommunications system which comprises an office network, an operator network, and a local area network between them. Data transmission from the office network through the local area network is adapted to a data transmission protocol according to a mobile system. The office network also comprises a serving support node, a packet control unit, and a gateway support node, which are arranged to support the packet data protocol of the mobile system. The serving support node, packet control unit, and gateway support node are arranged to have a functional connection with each other and with a radio access gateway. A packet data connection request is made from a mobile station to the office network, and a packet data connection is established from the serving support node and gateway support node to a destination address defined by the link request.

Claims

1. A telecommunications system which comprises an office network, an operator network, and a local area network between them, wherein the office network comprises

at least one mobile system terminal,

a base transceiver station,

a radio access gateway controlling the base transceiver station and having a functional connection with the local area network and configured to adapt the data transmission protocols of said mobile system and local area network to each other,

a serving support node which is configured to support the packet data protocol of said mobile system and to have a functional connection with said radio access gateway,

a packet control unit which is configured to support the packet data protocol of said mobile system and to have a functional connection with said radio access gateway and serving support node, and

a gateway support node which is configured to support the packet data protocol of said mobile system and to have a functional connection with said radio access gateway, serving support node, and packet control unit, and

the operator network comprises adaptation functions for adapting data transmission from the office network through the local area network at least to the data transmission protocol according to said mobile system and used by the public land mobile network.

2. A telecommunications system as claimed in claim 1, wherein

said mobile station is configured to support the packet data protocol of said mobile system,

and in response to a packet data connection request made by the mobile station, the serving support node and the gateway support node are configured to establish a packet data connection to a destination address defined by the link request.

3. A telecommunications system as claimed in claim 2, further comprising

a location database for registering the mobile stations belonging to the office network and for managing location and subscriber information,

an adaptation function in the operator network for adapting a packet data connection from the office network through the local area network at least to the packet data protocol used by the public land mobile network,

and in response to the packet data connection request made by the mobile station, the office network is configured alternatively

to establish a packet data connection to the destination address defined by the link request through the serving support node and gateway support node of the office network in response to the fact that said mobile station is registered to the office network, or

to route the packet data connection to the public land mobile network for onward routing to the destination address in response to the fact that said mobile station is not registered to the office network.

4. A telecommunications system as claimed in claim 1, wherein

said office-specific base transceiver station, radio access gateway, serving support node, packet control unit, and gateway support node are implemented as one element of the telecommunications system.

5. A telecommunications system as claimed in claim 1, wherein

said radio access gateway, serving support node, packet control unit, and gateway support node are implemented as one element of the telecommunications system in such a manner that the element is configured to control one or more office-specific base transceiver stations.

6. A telecommunications system as claimed in claim 1, wherein

a data transmission connection is configured from the gateway support node to a DHCP server for dynamically defining the IP addresses of mobile stations.

7. A telecommunications system as claimed in claim 1, wherein

the adaptation functions of the operator network for adapting data transmission from the office network through the local area network to the data transmission protocol according to said mobile system comprise interfaces according to said packet data protocol for establishing a packet data connection between at least the serving support node or gateway support node and an external data network.

8. A method for establishing a packet data connection in a telecommunications system which comprises an office network, an operator network, and a local area network between them, the office network comprising at least one mobile system terminal which is arranged to support a packet data protocol, a base transceiver station, and a radio access gateway controlling the base transceiver station and adapted to have a functional connection with the local area network, a serving support node, a packet control unit, and a gateway support node, which are configured to support the packet data protocol of said mobile system and to have a functional connection with each other and with said radio access gateway, the method comprising

making a packet data connection request from the mobile station to said office network, and

establishing a packet data connection from the serving support node and gateway support node to a destination address defined by the link request,

adapting the data transmission protocols of said mobile system and local area network to each other in said radio access gateway, and

adapting the data transmission from the office network through the local area network to at least the data transmission protocol according to said mobile station and used by the public land mobile network in said operator network.

9. A method as claimed in claim 8, wherein the telecommunications system also comprises a location database for registering the mobile stations belonging to the office network and for managing location and subscriber information, and an adaptation function in the operator network for adapting the packet data connection from the office network through the local area network to at least the packet data protocol used by the public land mobile network,

and in response to the packet data connection request made by the mobile station alternatively

establishing a packet data connection from the office network to the destination address defined by the link request through the serving support node and gateway support node of the office network in response to the fact that said mobile station is registered to the office network, or

routing the packet data connection to the public land mobile network for onward routing to the destination address in response to the fact that said mobile station is not registered to the office network.

10. A network element of a telecommunications system for supporting packet data connections in an office system which comprises at least one mobile system terminal, a base transceiver station, and a radio access gateway controlling the base transceiver station and adapted to have a functional connection with the local area network and configured to adapt the data transmission protocols of said mobile system and local area network to each other, wherein the network element comprises

a serving support node, a packet control unit, and a gateway support node, which are configured to support the packet data protocol of said mobile system and to have a functional connection with each other and with said radio access gateway.