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Protection against unsolicited communication for internet protocol multimedia subsystem

US9225751B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9225751-B2
Application numberUS-200913122263-A
CountryUS
Kind codeB2
Filing dateOct 6, 2009
Priority dateOct 6, 2008
Publication dateDec 29, 2015
Grant dateDec 29, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A PUCI system is designed to process an incoming call originated by the user equipment toward the counterpart user equipment via an EMS node having a PUCI-light functionality, which includes an IBCF/I-CSCF, a S-CSCF, and a database storing the PUCI-light information. Through a query to the database indicating a suspicious session in relation to the incoming call, the IMS node immediately blocks the suspicious session or simply marks the suspicious session for the further processing at a subsequent node. The reason for rejection is included in a SIP BYE/ERROR message of an original session setup message, which is interpreted by a previous IMS node so as to obtain the relevant information from a SIP header. The relevant information is stored in either a global operator policy database or a local database, thus enabling a PUCI-negating IMS node to reject an unsolicited call related to the blocked session.

First claim

Opening claim text (preview).

The invention claimed is: 1. An internet protocol (IP) multimedia subsystem (IMS) node comprising: a hardware processor facilitating the utilization of information acquired from a Protection against Unsolicited Communication for IMS (PUCI) compliant database, wherein the hardware processor accesses the PUCI compliant database via read-only access; the hardware processor implementing, in the node, operations including: routing communication between user equipment over an IP mult…

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Frequently asked questions

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What does patent US9225751B2 cover?
A PUCI system is designed to process an incoming call originated by the user equipment toward the counterpart user equipment via an EMS node having a PUCI-light functionality, which includes an IBCF/I-CSCF, a S-CSCF, and a database storing the PUCI-light information. Through a query to the database indicating a suspicious session in relation to the incoming call, the IMS node immediately blocks…
Who is the assignee on this patent?
Prasad Anand Raghawa, Kunz Andreas, Tamura Toshiyuki, and 3 more
What technology area does this patent fall under?
Primary CPC classification H04L65/1016. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Dec 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).