MME SELECTION UPON INTER-RAT MOBILITY FROM GERAN/UTRAN TO E-UTRAN
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United States of America Patent
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Jun 9, 2016
app pub date -
Jul 2, 2014
filing date -
Jul 8, 2013
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Abstract
It is provided a method, comprising monitoring whether an apparatus will perform a first mobility procedure from a first network of a first radio access technology to a first other network of a second radio access technology; storing an old identifier, wherein the old identifier identifies a first network element of the first network to which the apparatus is registered before the first mobility procedure starts; monitoring whether the apparatus performs a second mobility procedure from a second other network of a third radio access technology to a second network of the first technology; retrieving the stored old identifier; providing a mapped identifier and the retrieved old identifier to a base station of the second network when the apparatus performs the second mobility procedure, wherein the mapped identifier is based on an identification of a part of the second other network to which the apparatus is registered.
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