Assignee
KELLER RALF
DE·32 granted patents·4 pending applications·90 citations·filing 2004–2013
Top patents by PatentIndex Score
36 records- 0189US8483182B1Single radio voice call continuity handover of calls with video media from a circuit switched access networkKELLER RALF·Filed 2012·Granted Jul 9, 2013·10 cites·22 claims
- 0288US8848666B2Handover of emergency calls from a circuit switched to a packet switched access networkKELLER RALF·Filed 2012·Granted Sep 30, 2014·9 cites·17 claims
- 0385US8964961B2Method of routing a session from a calling party in a serving communication network of the calling party to a called partyKELLER RALF·Filed 2011·Granted Feb 24, 2015·6 cites·29 claims
- 0480US8671201B2Correlation of sessions in case of session transfer in IMS domainKELLER RALF·Filed 2008·Granted Mar 11, 2014·9 cites·19 claims
- 0577US8229408B2System and method for selecting a subsystem for call terminationKELLER RALF·Filed 2005·Granted Jul 24, 2012·7 cites·28 claims
- 0676US9413561B2Routing terminating callsKELLER RALF·Filed 2011·Granted Aug 9, 2016·5 cites·19 claims
- 0776US9294964B2Handover delay optimizationKELLER RALF·Filed 2010·Granted Mar 22, 2016·3 cites·33 claims
- 0876US9106664B2Method and apparatuses for maintaining service continuity to a centralization and continuity application serverKELLER RALF·Filed 2008·Granted Aug 11, 2015·5 cites·21 claims
- 0975US8885603B2Handover of calls between access networksKELLER RALF·Filed 2012·Granted Nov 11, 2014·4 cites·13 claims
- 1074US9294618B2Call-back to a UE that has made an emergency call via a visited IMS networkKELLER RALF·Filed 2013·Granted Mar 22, 2016·3 cites·16 claims
- 1173US9294993B2Handling of access capability information in a mobile networkKELLER RALF·Filed 2010·Granted Mar 22, 2016·2 cites·24 claims
- 1271US9538574B2Technique for terminating call set up in a CSFB situationKELLER RALF·Filed 2011·Granted Jan 3, 2017·2 cites·33 claims
- 1371US8824417B2Methods and apparatuses for single radio voice call continuity (SRVCC) from CS to LTEKELLER RALF·Filed 2009·Granted Sep 2, 2014·4 cites·30 claims
- 1469US9161268B2Technique for connection attempt handling in a circuit switched fallback situationKELLER RALF·Filed 2011·Granted Oct 13, 2015·2 cites·31 claims
- 1569US9055546B2Handling a registration timer to provide service continuity in IMSKELLER RALF·Filed 2010·Granted Jun 9, 2015·2 cites·12 claims
- 1669US8908643B2Handover of priority calls from a circuit switched access network with single radio voice call continuityKELLER RALF·Filed 2012·Granted Dec 9, 2014·2 cites·10 claims
- 1767US8923247B2Handover from circuit switched to packet switchedKELLER RALF·Filed 2010·Granted Dec 30, 2014·2 cites·10 claims
- 1863US9332467B2SRVCC handover of calls between access networks with efficient media gateway selectionKELLER RALF·Filed 2012·Granted May 3, 2016·1 cites·12 claims
- 1963US8619675B2Technique for emergency session handling in a communication networkKELLER RALF·Filed 2008·Granted Dec 31, 2013·2 cites·9 claims
- 2062US9374761B2Routing terminating call to user equipment via control nodesKELLER RALF·Filed 2012·Granted Jun 21, 2016·1 cites·13 claims
- 2162US9338641B2Enhanced handling of access capability information in a mobile networkKELLER RALF·Filed 2012·Granted May 10, 2016·1 cites·24 claims
- 2262US8265015B2Communication path allocating entity and methodKELLER RALF·Filed 2005·Granted Sep 11, 2012·2 cites·24 claims
- 2361US9717023B2Methods and devices for improving session continuityKELLER RALF·Filed 2010·Granted Jul 25, 2017·1 cites·23 claims
- 2457US8948127B2Method, apparatus and computer program for supporting a session identifier in case of a transfer between different radio access networksKELLER RALF·Filed 2009·Granted Feb 3, 2015·1 cites·10 claims
- 2556US8792852B2Method for informing multiple mobile terminals of an emergency eventKELLER RALF·Filed 2004·Granted Jul 29, 2014·4 cites·28 claims
- 2653US9717043B2Regulation by MSC server when using SGs/GsKELLER RALF·Filed 2009·Granted Jul 25, 2017·0 cites·31 claims
- 2750US9277461B2Methods of and nodes for selecting a target core network for handing over a voice session of a terminalKELLER RALF·Filed 2011·Granted Mar 1, 2016·0 cites·20 claims
- 2849US9100408B2Method for registering multi-contact devicesKELLER RALF·Filed 2006·Granted Aug 4, 2015·0 cites·15 claims
- 2949US2011268098A1Handling a registration timer to provide service continuity in IMSKELLER RALF·Filed 2011·Application pending·0 cites
- 3047US9066213B2Node for short message contextKELLER RALF·Filed 2012·Granted Jun 23, 2015·0 cites·20 claims
- 3147US8411641B2Methods for controlling access domain switching, network nodes, user terminal and computer program product thereforKELLER RALF·Filed 2006·Granted Apr 2, 2013·0 cites·23 claims
- 3247US2010260105A1Domain transfer service continuity provision to a mobile terminalKELLER RALF·Filed 2008·Application pending·0 cites
- 3346US2010254372A1System and method for enhancing ims centralized servicesKELLER RALF·Filed 2008·Application pending·0 cites
- 3443US9491668B2Methods of and nodes for informing a control node in a serving communication network of address information about a session anchor node in the serving communication networkKELLER RALF·Filed 2011·Granted Nov 8, 2016·0 cites·20 claims
- 3540US9509547B2Selection of service domain in IMS centralised servicesKELLER RALF·Filed 2010·Granted Nov 29, 2016·0 cites·20 claims
- 3637US2011299501A1Mobility in IMS based Home Node BKELLER RALF·Filed 2010·Application pending·0 cites
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