Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1996-07-16
2000-04-18
Ton, Dang
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370522, H04J 324
Patent
active
060523697
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a method for packet data transmission between fixed network elements, such as a mobile exchange, a base station controller and base stations, in a mobile communication system. The invention also relates to fixed network elements of a mobile communication system applying such a method.
BACKGROUND OF THE INVENTION
The introduction of digital mobile communication systems, such as the panEuropean mobile telephone system GSM, signifies a breakthrough, when the intention is to support mobile data transmission in public cellular networks. Since the GSM is entirely digital and utilizes general principles of an ISDN (Integrated Services Data Network), the GSM is inherently capable of transmitting data. For the user, the GSM does not represent a dedicated data transmission network, but an Access Network. In other words, data transmission via GSM is intended to allow an access into dedicated data networks. The current GSM recommendations specify only circuit switched data services in a cellular network. This means that a circuit switched connection is reserved for a data transmission in a mobile communication network and radio resources are kept allocated during the entire data session, even during silent periods when no communication whatsoever occurs. Because one characteristic feature of data communication is that data is sent in bursts, a circuit switched transfer is expensive for the user and wastes channel capacity in the network infrastructure. There is thus a need for connectionless (not circuit switched) packet data services in the GSM network infrastructure.
The architecture of a conventional packet data network can be considered as a single virtual network consisting of a plurality of small interconnected networks. Each terminal equipment, e.g. a computer, is connected to one of these local networks, i.e. packet nodes, capable of transmitting data packets via other nodes to a recipient. Each data packet is routed separately, i.e. the node computer searches for the address of the recipient in a packet header and forwards the data packet to the next node by using an internal routing algorithm.
There are various dedicated packet switched radio networks. It is, however, difficult to apply solutions used in such networks to already standardized (an even setup) GSM networks, without making significant modifications in the standard operation and configuration of the network and without significant economic investments. No effective solutions to provide a connectionless packet switched data transfer in a fixed network of the GSM system or a corresponding mobile communication system have been presented.
SUMMARY OF THE INVENTION
An object of the present invention is a method for implementing a connectionless node-to-node packet data transmission between network elements in a fixed network of the GSM system, or in a corresponding digital mobile communication system, without significant deviations from the standard configuration and operation of the network, and with as low economic investments as possible.
This is achieved by means of a method for packet data transmission between network elements, such as a mobile exchange, a base station controller and base stations, in a fixed network of a mobile communication system, which method is according to the invention characterized by: between the network elements and provided with an identifier for the packet data transmission, transmitting network element to a receiving network element by utilizing a connectionless signalling system between the network elements and the signalling protocol.
A second aspect of the invention is a fixed network element, such as a mobile exchange, a base station controller or a base station, in a mobile communication system, comprising signalling means for connectionless signalling in accordance with a predetermined signalling protocol with other network elements of the mobile communication network. According to the invention, the network element is characterized in that it further compri
REFERENCES:
patent: 4697281 (1987-09-01), O'Sullivan
patent: 5157660 (1992-10-01), Kuwahara et al.
patent: 5168498 (1992-12-01), Adams et al.
patent: 5278892 (1994-01-01), Bolliger et al.
patent: 5343494 (1994-08-01), Averst et al.
patent: 5517497 (1996-05-01), Le Boudec et al.
Hamalainen et al: "Packet data over GSM network", TDOC SMGL 238/93, Sep. 28, 1993, p. 1-8. see p. 4, line 1-23.
Hamalainen Jari
Keskinen Matti
Rajala Jussi
Nokia Mobile Phones Ltd.
Nokia Telecommunications Oy
Ton Dang
LandOfFree
Network element in a mobile communication system and a method fo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Network element in a mobile communication system and a method fo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Network element in a mobile communication system and a method fo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2342166