Invention Grant
- Patent Title: Local switching
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Application No.: US13319147Application Date: 2009-07-24
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Publication No.: US10750574B2Publication Date: 2020-08-18
- Inventor: Dirk Kampmann , Karl Hellwig , Philip Hodges , Paul Schliwa-Bertling
- Applicant: Dirk Kampmann , Karl Hellwig , Philip Hodges , Paul Schliwa-Bertling
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett PLLC
- International Application: PCT/EP2009/059592 WO 20090724
- International Announcement: WO2010/127717 WO 20101111
- Main IPC: H04W88/14
- IPC: H04W88/14 ; H04W92/14 ; H04W88/12 ; H04W76/22 ; H04W76/11

Abstract:
The invention proposes to introduce a method for a Radio Access Network for providing “Local Switching” between call legs of a call. Within said method the Radio Access Network receives a call identifier for a leg of a call from a Core Network to be handled by the Radio Access Network. The Radio Access Network stores said received call identifier, compares said received call identifier with stored call identifiers for call legs of calls via said Radio Access Network. If said received call identifier matches a stored call identifier the Radio Access Networks establish local switching of call legs identified by the matching call identifier. In an alternative embodiment, the invention proposes to introduce a method for a Core Network for providing local switching for call legs of a call. Within said method the Core Network receives or generates a call identifier for a leg of a call. The Core Network stores said received call identifier and identifies a respective Radio Access Network for said leg of said call. Thereafter, the Core Network compares said call received identifier with stored call identifiers for call legs of calls via said identified Radio Access Network. If said received call identifier matches a stored call identifier enforce local switching of call legs identified by the matching call identifier. The invention furthermore provides for respective Nodes of the respective Networks employing the invention.
Public/Granted literature
- US20120178453A1 Local Switching Public/Granted day:2012-07-12
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