Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1995-01-20
1996-11-19
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
455 331, H04Q 722
Patent
active
055771025
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a method and arrangement for processing short messages in a mobile services switching centre of a cellular network.
The invention operates in a cellular network that contains a mobile services switching centre. The network comprises a home location register for permanent storing of location and subscriber data on radio telephones registered in the network. The geographical area covered by the network is divided into smaller mobile services switching centre areas (MSC area), each of which comprises a visitor location register for temporary storing of subscriber data on radio telephones visiting the MSC area and a mobile services switching centre interconnected with the visitor location register. Each MSC area is further divided into location areas, which are divided into cells. Each cell comprises at least one base transceiver station that is capable of establishing a radio link with the active radio telephones located in the cell.
In different cellular radio systems or radio telephone systems currently used or planned, the geographical area covered by the system is divided into separate smaller radio areas or cells in such a way that when a radio telephone or mobile phone is in the cell, it communicates with a fixed network via a base transceiver station located in the cell. The mobile phones of the system may freely roam from one cell to another within the system. One of these systems is the digital mobile phone system GSM (Global System for Mobiles).
In cellular radio networks, it is known to transmit short messages to a short message service centre that is separate from a cellular radio network. Recommendation GSM 03.40, ETSI/PT, February 1992 includes a description of such a system transmitting short messages. It describes interconnection of a short message service centre with a mobile services switching centre of a cellular radio network and operation of this short message service centre as it transmits short messages from outside the cellular radio network and from one subscriber (A-subscriber) of the cellular radio network to another subscriber (B-subscriber) of the network, or to a communicating means outside the network capable of receiving and/or transmitting short messages. Recommendation GSM 04.11, ETSI/PT 12, February 1992 provides a more detailed description of transmission of short messages on a radio path between GSM terminal equipment, a mobile services switching centre and a short message service centre.
The above described art solutions and their practical applications have focused on communication by means of short messages between the subscribers of a cellular radio system and the communicating means outside the system capable of receiving and/or transmitting short messages. Known solutions of this kind have thus granted that a separate short message service centre which requires space and financial resources, must be connected to the system, although the centre requires new arrangements separate from those required by a cellular radio network to control it and render it compatible with the network.
SUMMARY OF THE INVENTION
The object of the present invention is to simplify transmission of short messages from an A-subscriber of a cellular radio system to a B-subscriber in a fast and inexpensive manner and without additional equipment.
According to the invention this new kind of method for processing short messages in a cellular radio network is characterised by the following steps: an A-subscriber sends a short message provided with the routing address of a B-subscriber; the routing address contained in the short message is checked in the mobile services switching centre; and when the address is that of the B-subscriber, the short message is stored A-subscriber-specifically in the short message storing means of the mobile services switching centre, the mobile services switching centre requests the routing information of the B-subscriber from the home location register, and if the B-subscriber can be reached, the home location reg
REFERENCES:
Recommendation GSM 03.40, "Technical Realization of the Short Message Service--Point-to-Point", version 3.5.0, European Telecommunications Standards Institute, ETSI/PT 12, Feb. 1992, paragraphs 3.1 (pp. 10-11); 3.2.6 (pp. 13-14); 3.2.8 (p. 15); 4.1 (pp. 18-19); 5.2 (p. 20), 6-8 (pp. 20-25) and 10 (pp. 53-74).
Recommendation GSM 09.02, "Mobile Application Part Specification", version 3.8.0, European Telecommunications Standards Institute, ETSI, Jan. 1991; pp. 324-367.
IEE Colloquium on "GSM and PCN Enhanced Mobile Services", IEE, London, UK, 1991 (Conference date 30 Jan. 1991); pp. 7/1-7/5.
"Distributed Architechture for Applications based on the GSM Short Message Service", CSELT, G. Martini et al., pp. 140-145 1995.
"The Short Message Service--A New Service of Digital Mobile Communication", including English Translation, M. Heintz et al., pp. 517-526. Sep. 1993.
Kuntz Curtis
Nokia Telecommunications Oy
Trost William G.
LandOfFree
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