Telecommunications – Transmitter and receiver at separate stations
Patent
1994-09-15
1997-05-06
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455 531, 379 59, H04Q 722
Patent
active
056280513
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a method for starting a short message transmission in a mobile telephone network comprising at least one short message service centre having an identity and transmitting short messages; at least one gateway mobile exchange forwarding short messages; at least one mobile exchange forwarding short messages; a subscriber capable of receiving short messages; and a home location register having a subscriber-specific list of identities of short message service centres that have transmitted rejected short messages, a subscriber-specific short message transmission starting message from the home location register activating the short message service centre to transmit a short message to the gateway mobile exchange in order for the short message to be forwarded to the subscriber, wherein the rejected short messages are stored in the short message service centre.
In cellular radio networks it is known to send short messages via a short message service centre separate from the cellular radio network. One system for sending and forwarding short messages is described in GSM 03.40, February 1992, Technical Realization of Short Message Services Point to Point, ETSI/PT. The specification describes the interfacing of a short message service centre (SC) to the mobile exchange of a cellular radio network, and the operation of the SC when it sends and forwards short messages from outside the cellular radio network and from one subscriber (A subscriber) to another (B subscriber) in the cellular radio network, or to an external message means capable of receiving and/or sending short messages. The transfer of short messages over a radio path between GSM terminal equipment, a mobile exchange and a short message service centre is described more closely in GSM 04.11, February 1992, MS-BSS Interface--Support of Short Message Service (p-p), ETSI/PT 12.
FIG. 4 of the attached drawings shows a situation preceding the arising of the problem associated with the prior art. A short message service centre SC1 sends 400 a short message to a gateway mobile exchange GMSC, which requests 401 for routing information from the home location register HLR of the subscriber by a SendRoutingInfoForSM message. The HLR sends 402 the required routing information (Routing-Info), i.e. the identity of the mobile exchange of the assumed location area of the subscriber to the gateway mobile exchange GMSC, which sends 403 the short message (ForwardShortMessage) received by it to the mobile exchange VMSC/VLR of the assumed location area of the subscriber. As the subscriber is not reachable 404, the visitor location register VLR sets the MWF flag of the subscriber, i.e. the VLR message waiting flag, illustrated in FIG. 2. There is one message waiting flag for each International Mobile Subscriber Number IMSI. If there are messages addressed to the subscriber the transmission of which has not been completed successfully, the Message Waiting Flag is in the position True T, and if there are no messages addressed to the subscriber, the flag is in the position False F. If the flag is in the position T, the VLR monitors whether the subscriber establishes a connection to the mobile network. If the subscriber establishes a connection to the mobile network, the HLR of the subscriber has to be informed of the connection establishment. Moreover, as the subscriber has not been reachable, the VMSC/VLR sends 405 a negative acknowledgement message (ForwardShortMessageNegativeAcknowledge), which indicates to the GMSC that the subscriber is not reachable. The GMSC thereby sends 406 an activation message (SetMessageWaitingData) to the HLR of the subscriber, which message activates the HLR to make up 407 a Message Waiting Data List, i.e. a MWD list, in compliance with GSM 03.40. For each B subscriber the MWD list stores, on the basis of the IMSI of each subscriber and the MSISDN numbers msisdn associated with the IMSI, the addresses Sc1, Sc2 of short message centres SC storing short messages waiting to be transmitted to the subscr
REFERENCES:
patent: 5136585 (1992-08-01), Nazamuddin et al.
patent: 5204861 (1993-04-01), Wiebe
patent: 5351235 (1994-09-01), Lahtinen
patent: 5404580 (1995-04-01), Simpson et al.
patent: 5487071 (1996-01-01), Nordstrand et al.
Recommendation GSM 03.04 "Technical Realization of the Short Message Service-Point-to-point" version 3.5.0.ETSI/PT12, Feb. 1992, see especially pp. 13-14,20.
Recommendation GSM 04.11 "Point to Point Short Message Service Support on mobile Radio Interface" version 3.2.0, ETSI/PT 12, Feb. 1992, see p. 17.
Recommendation GSM 09.02, "Mobile Application Part Specification", version 3.8.0 RTSI/PT 12, Jan. 19999999999991, see pp. 325 -326, 336 -338.
Nokia Telecommunications Oy
Urban Edward F.
LandOfFree
Method for starting a message transmission in a mobile telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for starting a message transmission in a mobile telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for starting a message transmission in a mobile telephone will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2140835