US6954654B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Provision of services in a communication system including an interworking mobile switching center
Assignee: Nokia of America Corp
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Filing: 2001-07-31
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Granted: 2005-10-11
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Expires: 2021-07-31
Abstract
Abstract A communication system includes User Equipment ( 111 ), Radio Access Network (RAN) ( 121 ), a packet-switched domain ( 131 ), an IP Multimedia Subsystem (IMS) ( 141 ), a circuit-switched domain ( 151 ), a Domain Name System (DNS) ( 165 ), a Charging Gateway Function (CGF) ( 134 ), an EIR ( 135 ), a Transport Signaling Gateway (T-SGW) ( 146 ), and a Roaming Signaling Gateway (R-SGW) ( 147 ). The CS domain ( 151 ) includes an interworking Mobile Switching Center (iMSC) ( 201 ). The iMSC ( 201 ) translates the CS domain registration, call control, feature control, and feature invocation procedures associated with the access technology to standard SIP procedures. The media gateway (MGW) ( 173 ) under the control of the iMSC ( 201 ) converts the air interface media flow into a packet stream that is managed by SIP procedures within the IMS ( 141 ). The iMSC ( 201 ) thereby allows for interworking between circuit-switched and packet-switched domains for provision of services to subscribers.
Inventors
- 👤 Richard Paul Ejzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:40
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/02; H04W8/04; H04L; H04L51/00; H04L51/58; H04L65/00; H04L65/10; H04L65/1016; H04Q; H04Q2213/00; H04Q2213/13039; H04Q2213/13098; H04Q2213/13176; H04Q2213/13196; H04Q2213/13204; H04Q2213/13248; H04Q2213/13348; H04Q2213/13389; H04W80/00; H04W80/08; H04W80/10; H04W88/00; H04W88/16; H04W92/00; H04W92/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
206 words
A method for registering a mobile unit with a communication system including a serving system, a home IP Multimedia Subsystem (IMS), a mobile switching center (MSC), and an interworking MSC (IMSC), the IMSC including at least one Media Gateway (MGW) that is controlled by the iMSC, the method comprising: performing a location update procedure by the mobile unit; processing by the serving system the registration by authenticating the mobile unit and informing the Home Subscriber Server (HSS) of the location of the current serving system; determining if the serving system can process the mobile unit as an iMSC; and if the serving system can process the mobile unit as an iMSC: performing SIP registration procedures by the IMSC with the home IMS on behalf of the mobile unit; delivering phone calls destined for the mobile unit to the serving system; utilizing a Domain Name System (DNS) by the iMSC to determine if there is an I-CSCF address associated with the mobile unit; sending a SIP registration message to the I-CSCF in the home IMS on behalf of the mobile unit; communicating by the I-CSCF with the HSS to complete the IMS registration procedure; and sending subscriber profile information to a Serving Call State Control Function (S-CSCF).
Claim 2
Independent Claim
206 words
A method for registering a mobile unit with a communication system including a serving system, a home IP Multimedia Subsystem (IMS), a mobile switching center (MSC), and an interworking MSC (IMSC), the IMSC including at least one Media Gateway (MGW) that is controlled by the iMSC, the method comprising: performing a location update procedure by the mobile unit; processing by the serving system the registration by authenticating the mobile unit and informing the Home Subscriber Server (HSS) of the location of the current serving system; determining if the serving system can process the mobile unit as an iMSC; and if the serving system can process the mobile unit as an iMSC: performing SIP registration procedures by the IMSC with the home IMS on behalf of the mobile unit; delivering phone calls destined for the mobile unit to the serving system; utilizing a Domain Name System (DNS) by the iMSC to determine if there is an I-CSCF address associated with the mobile unit; sending a SIP registration message to the I-CSCF in the home IMS on behalf of the mobile unit; communicating by the I-CSCF with the HSS to complete the IMS registration procedure; and sending subscriber profile information to a Serving Call State Control Function (S-CSCF).
Claim 3
Dependent Claim
29 words
A method for registering a mobile unit in accordance with claim 1 , wherein the subscriber profile information includes information about features and services provisioned for the mobile unit.
Claim 4
Dependent Claim
25 words
A method for registering a mobile unit in accordance with claim 2 , wherein the S-CSCF provides all features and services for registered mobile units.
Claim 5
Dependent Claim
26 words
A method for registering a mobile unit in accordance with claim 3 , wherein the S-CSCF provides all features and services for registered mobile units directly.
Claim 6
Dependent Claim
25 words
A method for registering a mobile unit in accordance with claim 3 wherein the S-CSCF provides all features and services for registered mobile units indirectly.
Claim 7
Dependent Claim
42 words
A method for registering a mobile unit in accordance with claim 5 , wherein the S-CSCF provides all features and services for registered mobile units indirectly comprises sending SIP signaling by the S-CSCF to an application server located in the communication system.
Claim 8
Dependent Claim
28 words
A method of registering a mobile unit in accordance with claim 1 , wherein the subscriber profile information includes information about supplementary services provisioned for the mobile unit.
Claim 9
Dependent Claim
30 words
A method of registering a mobile unit in accordance with claim 7 , wherein the mobile unit can query for status information about supplementary services provisioned for the mobile unit.
Claim 10
Dependent Claim
29 words
A method of registering a mobile unit in accordance with claim 8 , wherein the step of querying for status information comprises interworking standard air interface procedures with SIP.
Claim 11
Dependent Claim
29 words
A method of registering a mobile unit in accordance with claim 7 , wherein the mobile unit can control the behavior of supplementary services provisioned for the mobile unit.
Claim 12
Dependent Claim
31 words
A method of registering a mobile unit in accordance with claim 10 , wherein the step of controlling the behavior of supplementary services comprises interworking standard air interface procedures with SIP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-10-10 | 2009-04-11 | 2009-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-10-10 | 2013-04-11 | 2013-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-10-10 | 2017-04-11 | 2017-10-11 | $7700.00 | Window Closed / Lapsed |