First radio access node, a second radio access node, a first core network node and methods therein for preparing handover
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United States of America Patent
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Nov 5, 2019
Grant Date -
Jan 25, 2018
app pub date -
Feb 2, 2015
filing date -
Feb 2, 2015
priority date (Note) -
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Abstract
A method in a first radio access node for preparing handover of a user equipment in a wireless communications network. The user equipment is to be handed over from being served by the first radio access node to being served by a second radio access node. The first radio access node is connected to a first core network node currently serving the user equipment. Based on whether or not the second radio access node is connected to the first core network node the first radio access node selects (504) an interface for signalling handover of the user equipment among: a first interface interfacing the first radio access node and the first core network node, and a second interface. The second interface is an interface between the first radio access node and the second radio access node.
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