PatentsDB

SRVCC handover of calls between access networks with efficient media gateway selection

US9332467B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9332467-B2
Application numberUS-201214391198-A
CountryUS
Kind codeB2
Filing dateJun 13, 2012
Priority dateApr 17, 2012
Publication dateMay 3, 2016
Grant dateMay 3, 2016

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A mechanism is presented for performing a session transfer with Single Radio Voice Call Continuity, SRVCC, from a Packet Switched, PS, access to a Circuit Switched, CS, access of a telecommunications session that has been established over the PS access via an IP Multimedia Subsystem, IMS, network. The method includes receiving a request for the transfer of the session to the CS access. An indication of an already-seized media gateway, MGW, that has been established for use in one or more other sessions over the CS access is obtained from the IMS network. A MGW is selected as a Mobile-Media Gateway, M-MGW, for the session based on the obtained indication. Allocation of resources for the session in the CS access network is initiated, including specifying the MGW to be used as the Mobile-Media Gateway, M-MGW. Transfer of the session to the CS access is then initiated.

First claim

Opening claim text (preview).

The invention claims is: 1. A method of performing a session transfer with Single Radio Voice Call Continuity (SRVCC) from a Packet Switched (PS) access to a Circuit Switched (CS) access of a telecommunications session that has been established over the PS access via an IP Multimedia Subsystem (IMS) network, the method comprising: receiving a request for the transfer of the session to the CS access; obtaining, from the IMS network, an indication of an already-seized media gatewa…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

View patent family 46320925

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Get alerts for this patentView on Google Patents

Request deeper analysis

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9332467B2 cover?
A mechanism is presented for performing a session transfer with Single Radio Voice Call Continuity, SRVCC, from a Packet Switched, PS, access to a Circuit Switched, CS, access of a telecommunications session that has been established over the PS access via an IP Multimedia Subsystem, IMS, network. The method includes receiving a request for the transfer of the session to the CS access. An indic…
Who is the assignee on this patent?
Keller Ralf, Lindholm Fredrik, Perttula Kari-Pekka, and 2 more
What technology area does this patent fall under?
Primary CPC classification H04W36/08. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 03 2016 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).