Loading patent…
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsPeter Ramle, Hans-Olof Sundell, Lasse Olsson
Estimating the term…
The present invention relates to a packet data support node (201) with a serving functionality and supporting over at least a first radio access network. It comprises mobility handling means and session handling means. It further comprises detecting means, in communication with said mobility handling means and with said session handling means, which are adapted to detect or establish initiation of a handover of a mobile station from the first or source radio access network. The session handling means are adapted to keep information about support for a direct tunneling functionality between the gateway packet data support node and the first radio access network. The detecting means are adapted to, upon detecting initiation of an HO from a first mode supporting direct tunneling (10) activate initiation of a reset of the direct tunnel and set up of two tunnel tunnels (10A, 10B) replacing said direct tunnel (10), each having a respective end point in the packet data support node.
A packet data support core network node with a serving functionality and supporting access over a first radio access network and comprising mobility handling means and session handling means the packet data support core network node arranged for detecting an intended or initiated handover of a mobile user station connected to the packet data support core network node via a first radio access network over an interface using direct tunneling of user plane data bypassing the packet data support core network node, to the first or a second radio access network using an interface for communication with the packet data support core network node, or another packet data support core network node and to, upon detection of such a handover initiation, initiate replacement or reset of the direct tunnel.
A method relating to handover of a mobile user station from a first, source, radio access network node, comprising the steps of:
Dependencies are inferred from the claim text.