Patent US6611516B1 successfully refreshed from Google Patents.
US6611516B1
Expired / Lapsed
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Short message service support over a packet-switched telephony network
Assignee: Nokia Technologies Oy
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Filing: 1999-06-21
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Granted: 2003-08-26
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Expires: 2019-06-21
Abstract
Abstract According to an embodiment of the present invention, a system is provided that includes a cellular network, a Public Switched Telephone Network (PSTN) and a mobile IP-telephony network (MIPTN). Both the cellular network and the MIPTN include a Home Function and one or more visited Functions. MIPTN subscribers can roam within the MIPTN. Also, a Gateway Function interfaces the PSTN and the MIPTN to allow roaming between the cellular network and the MIPTN. The Gateway Function performs a dynamic mapping function between PSTN/cellular addresses (e.g., in E.16440 format) and MIPTN addresses (e.g., IP addresses) to allow registration and call delivery for subscribers roaming between the cellular network and the MIPTN. A similar type of Gateway Function also allows Short Message Service (SMS) messages to be delivered over the MIPTN as well.
Inventors
- 👤 Juha Matti Pirkola
- 👤 Heikki Juhani Einola
- 👤 Jarmo Johannes Virtanen
- 👤 Aki Petteri Mikkonen
- 👤 Tero Koskivirta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:11
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/18; H04W88/184; H04M; H04M7/00; H04M7/12; H04M7/1205; H04M7/1225; H04M7/1235; H04M7/128; H04W4/00; H04W4/12; H04W4/14; H04M2207/00; H04M2207/18; H04M2207/20; H04M3/00; H04M3/42; H04M3/50; H04M3/53; H04M3/5322; H04M3/533; H04W76/00; H04W76/10; H04W76/12; H04W8/00; H04W8/02; H04W8/04; H04W80/00; H04W80/04; H04W88/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's cellular home function, the location information including a cellular network address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function using a dynamic mapping obtained during registration to identify a packet-switched telephony network address of a packet-switched telephony visited function where the subscriber is located; and the second gateway forwarding the short message to the packet-switched telephony visited function where the subscriber is located.
Claim 2
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's cellular home function, the location information including a cellular network address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function using a dynamic mapping obtained during registration to identify a packet-switched telephony network address of a packet-switched telephony visited function where the subscriber is located; and the second gateway forwarding the short message to the packet-switched telephony visited function where the subscriber is located.
Claim 3
Dependent Claim
27 words
The method of claim 1 and further comprising forwarding the short message from the packet-switched telephony visited function where the subscriber is located to the subscriber terminal.
Claim 4
Independent Claim
130 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a packet-switched telephony subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's packet-switched telephony home function, the location information including a packet-switched telephony network address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function identifying a cellular network address of a cellular visited function where the subscriber is located; and the second gateway forwarding the short message to the cellular visited function where the subscriber is located.
Claim 5
Independent Claim
130 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a packet-switched telephony subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's packet-switched telephony home function, the location information including a packet-switched telephony network address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function identifying a cellular network address of a cellular visited function where the subscriber is located; and the second gateway forwarding the short message to the cellular visited function where the subscriber is located.
Claim 6
Dependent Claim
26 words
The method of claim 3 and further comprising forwarding the short message from the cellular visited function where the subscriber is located to the subscriber terminal.
Claim 7
Independent Claim
135 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's packet-switched telephony home function, the location information including a packet-switched telephony address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function using a dynamic mapping obtained during registration to identify a cellular address of a cellular visited function where the subscriber is located; and the second gateway forwarding the short message to the cellular visited function where the subscriber is located.
Claim 8
Independent Claim
135 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message and subscriber identification to a first gateway function; the first gateway function obtaining subscriber location information from the subscriber's packet-switched telephony home function, the location information including a packet-switched telephony address of a second gateway function through which the subscriber can be reached; forwarding the short message and the subscriber identification to the second gateway function; the second gateway function using a dynamic mapping obtained during registration to identify a cellular address of a cellular visited function where the subscriber is located; and the second gateway forwarding the short message to the cellular visited function where the subscriber is located.
Claim 9
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message at a cellular network short message service center, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message from the message service center to a gateway function including the subscriber identification; obtaining from the subscriber's cellular home function a cellular address of a gateway function where the subscriber can be reached; forwarding the short message and the subscriber identification to the gateway function; the gateway function using a dynamic mapping obtained during registration to identify a packet-switched telephony address of a packet-switched telephony visited function where the subscriber is located based on the subscriber identification; the gateway function sending the short message to the packet-switched telephony visited function where the subscriber is located.
Claim 10
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message at a cellular network short message service center, including a subscriber identification which identifies a cellular subscriber to receive the short message; forwarding the short message from the message service center to a gateway function including the subscriber identification; obtaining from the subscriber's cellular home function a cellular address of a gateway function where the subscriber can be reached; forwarding the short message and the subscriber identification to the gateway function; the gateway function using a dynamic mapping obtained during registration to identify a packet-switched telephony address of a packet-switched telephony visited function where the subscriber is located based on the subscriber identification; the gateway function sending the short message to the packet-switched telephony visited function where the subscriber is located.
Claim 11
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message at a packet-switched telephony short message service center, including a subscriber identification which identifies a packet-switched telephony subscriber to receive the short message; forwarding the short message from the message service center to a gateway function including the subscriber identification; obtaining from the subscriber's packet-switched telephony home function a packet-switched telephony address of a gateway function where the subscriber can be reached; forwarding the short message and the subscriber identification to the gateway function; the gateway function using a dynamic mapping obtained during registration to identify a cellular address of a cellular visited function where the subscriber is located based on the subscriber identification; the gateway function sending the short message to the cellular visited function where the subscriber is located.
Claim 12
Independent Claim
138 words
A method of delivering a short message over a packet-switched telephony network comprising: receiving a short message at a packet-switched telephony short message service center, including a subscriber identification which identifies a packet-switched telephony subscriber to receive the short message; forwarding the short message from the message service center to a gateway function including the subscriber identification; obtaining from the subscriber's packet-switched telephony home function a packet-switched telephony address of a gateway function where the subscriber can be reached; forwarding the short message and the subscriber identification to the gateway function; the gateway function using a dynamic mapping obtained during registration to identify a cellular address of a cellular visited function where the subscriber is located based on the subscriber identification; the gateway function sending the short message to the cellular visited function where the subscriber is located.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-08-25 | 2007-02-24 | 2007-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-08-25 | 2011-02-24 | 2011-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-08-25 | 2015-02-24 | 2015-08-26 | $7700.00 | Window Closed / Lapsed |