Telecommunications – Radiotelephone system – Auxiliary data signaling
Reexamination Certificate
1997-11-19
2001-07-10
Kincaid, Lester G. (Department: 2682)
Telecommunications
Radiotelephone system
Auxiliary data signaling
C455S411000, C455S412100, C455S435100
Reexamination Certificate
active
06259925
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
The present invention relates to cellular telephone networks and, in particular, to cellular telephone networks supporting short message service message delivery.
2. Description of Related Art
Many cellular telephone networks support the transmission of short message service (SMS) messages to and from short message entities (SMEs) such as mobile stations. For example, such a short message service is currently supported by a number of digital cellular networks including the Personal Communications Services (PCS) network and the Global System for Mobile (GSM) communications network.
A short message service message delivery from a service center to a mobile station may fail for any one of a number of reasons. For example, the mobile station may not respond to a system page, and therefore not be reachable at the time of delivery. Similarly, short message service message delivery may fail because mobile station memory capacity has been exceeded and thus cannot currently handle the reception of another short message service message. The undelivered message is then stored in either case for later delivery. Subsequent to the failed message delivery attempt, radio contact with the mobile station may be established using a radio resource connection in a successfully authenticated transaction like a location update, call origination, call termination or call independent supplementary service. In connection therewith, a signal is sent to a home location register indicating that the mobile station is now available for message delivery. The radio resource connection used for the successfully authenticated transaction is then dropped. Responsive to the received signal, the home location register confirms that a message needs to be delivered to the mobile station, and signals the service center to effectuate delivery of the stored message. This delivery requires the use of a new radio resource connection with the mobile station.
SUMMARY OF THE INVENTION
It is recognized that in each of the foregoing exemplary scenarios, as well in connection with other scenarios involving failed short message service message delivery, a radio resource connection in a successfully authenticated transaction which is used to trigger an indication that the mobile station is now available for message delivery is dropped and a new radio resource connection in another successfully authenticated transaction is thereafter established to provide delivery of the stored short message service message. This presents a quite inefficient use of network communications resources.
The present invention advantageously retains the radio resource connection of a successfully authenticated transaction, and then utilizes that retained radio resource connection to provide delivery of the stored short message service message. To accomplish this end, a timer is started responsive to the indication that the mobile station is now available for message delivery. The radio resource connection of the first successfully authenticated transaction is then held in place until timer expiration. Meanwhile, stored message delivery occurs either in parallel with, or after the completion of, the successfully authenticated transaction. This procedure not only more efficiently utilizes connection resources, but also obviates the need to page for the mobile station and perform any necessary security related functions (such as authentication, assignment and ciphering) to provide stored short message service message delivery.
As a further extension of the present invention, the retained radio resource connection of the successfully authenticated transaction is utilized to support delivery of all other transactions (for example, location updating, call from, call to, mobile originated short message, mobile terminated short message, or call independent supplementary services) with respect to the mobile station. Once the transaction is provided, if the stored short message service message is delivered, it will also utilize the retained radio resource connection in a parallel transaction.
REFERENCES:
patent: 5289179 (1994-02-01), Beeson et al.
patent: 5418835 (1995-05-01), Frohman et al.
patent: 5428665 (1995-06-01), Lantto
patent: 5577102 (1996-11-01), Koivunen
patent: 5579372 (1996-11-01), Åström
patent: 5590396 (1996-12-01), Henry
patent: 5596318 (1997-01-01), Mitchell
patent: 6097938 (2000-08-01), Paxson
patent: 2 244 409 (1991-11-01), None
patent: WO 94/16532 (1994-07-01), None
patent: WO 96/38010 (1996-11-01), None
European Standard Search Report dated Sep. 7, 1998 for RS 100338US.
Jenkens & Gilchrist
Kincaid Lester G.
Telefonaktiebolaget LM Ericsson (publ)
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