US5797100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for setting up a call connection for a group call to a group of mobile radio subscribers in a mobile radio network
Assignee: Telit Cinterion Deutschland GmbH
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Filing: 1996-02-16
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Granted: 1998-08-18
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Expires: 2016-02-16
Abstract
Abstract In a method for setting up a call connection for a group call to a group of mobile radio subscribers in a mobile radio network, a subscriber calling a group of mobile radio subscribers dials a subscriber call number having numerals for the identification of the call as a group call, which number is received by a mobile switching center in the mobile radio network. The numerals of the subscriber call number are evaluated with reference to area information for the identification of a local service area and with reference to group information. After the evaluation of the numerals of the subscriber call number dialed for the group call, the area information and the group information are transmitted directly to the target mobile switching center responsible for the called group in the service area, by which the further connection set-up for the group call is initiated using the received area information and group information.
Inventors
- 👤 Harald Dettner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:26
CPC Classifications
H; H04; H04W; H04W76/00; H04W76/40; H04W4/00; H04W4/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
177 words
A method for setting up a call connection for a group call directed to a group of mobile radio subscribers of a mobile radio network comprising the steps of: placing a call from a calling subscriber by entering a subscriber call number having symbols for identification of said call as a group call to a called group of subscribers; receiving said subscriber call number by a mobile switching center of said mobile radio network and evaluating said symbols of said subscriber call number with regard to area information for identification of a local service area in which the subscribers of said called group are located and with reference to group information for identification of said called group; and after evaluation of said subscriber call number, transmitting said area information and said group information to a target mobile switching center responsible for said called group in said service area, and setting up a call connection to each of the subscribers in said called group from said target mobile switching center using said area information and said group information.
Claim 2
Independent Claim
177 words
A method for setting up a call connection for a group call directed to a group of mobile radio subscribers of a mobile radio network comprising the steps of: placing a call from a calling subscriber by entering a subscriber call number having symbols for identification of said call as a group call to a called group of subscribers; receiving said subscriber call number by a mobile switching center of said mobile radio network and evaluating said symbols of said subscriber call number with regard to area information for identification of a local service area in which the subscribers of said called group are located and with reference to group information for identification of said called group; and after evaluation of said subscriber call number, transmitting said area information and said group information to a target mobile switching center responsible for said called group in said service area, and setting up a call connection to each of the subscribers in said called group from said target mobile switching center using said area information and said group information.
Claim 3
Dependent Claim
39 words
A method as claimed in claim 1 wherein the step of evaluating said symbols of said subscriber call number comprises evaluating said symbols of said subscriber call number decentrally by the mobile switching center receiving the subscriber call number.
Claim 4
Dependent Claim
40 words
A method as claimed in claim 2 wherein the step of evaluating said symbols of said subscriber call number comprises evaluating said symbols of said subscriber call number by a mobile switching center responsible for the subscriber placing said call.
Claim 5
Dependent Claim
48 words
A method as claimed in claim 1 comprising transmitting said symbols of said subscriber call number from said mobile switching center which receives the subscriber call number to a separate mobile switching center and evaluating said symbols of said subscriber call number at said separate mobile switching center.
Claim 6
Dependent Claim
43 words
A method as claimed in claim 1 comprising the additional step of using a subscriber call number having control information contained therein which identifies that said symbols of said subscriber call number are to be evaluated for the presence of a group call.
Claim 7
Dependent Claim
40 words
A method as claimed in claim 5 comprising the step of: employing control information consisting of a virtual register number not allocatable to any home location register used for storing subscriber data of the subscribers in said mobile radio network.
Claim 8
Dependent Claim
30 words
A method as claimed in claim 1 wherein the step of placing said group call comprises placing said group call from a mobile radio subscriber of said mobile radio network.
Claim 9
Dependent Claim
52 words
A method as claimed in claim 1 comprising the step of: directing said group call to said called group by a telephone subscriber of a public-switched transmission network and receiving said group call by an access mobile switching center in said mobile radio network used for incoming calls from other communications networks.
References Cited (Backward Citations)
US5274837A
Cited
US5095529A
Cited
US5369684A
Cited
US5153902A
Cited
WO1993005622A1
Cited
US5465391A
Cited
WO1993007723A1
Cited
GB2265791A
Cited
US5295180A
Cited
US5408419A
Cited
US5387905A
Cited
GB2271690A
Cited
US5513381A
Cited
US5450405A
Cited
US5457809A
Cited
WO1994028687A1
Cited
WO1995001074A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |