Telecommunications handover when Handover Restriction List is missing
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGunnar Bergquist, Christian Axell
Life of this patent
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Abstract
A base station node (26S) of a radio access network comprises a communication interface (62) to a higher layer network node (40) and a handover unit (50). The handover unit (50) is configured to request that the higher layer network node (40) make a decision regarding a target cell (28T) to which to handover a particular wireless terminal (30) when the base station node does not have roaming configuration information for the particular wireless terminal and an attempted X2 interface handover of the particular wireless terminal has failed. The target cell (28T) is of a type that is shared by plural public land mobile networks (42, 44).
Claims12
A base station node of a radio access network comprising:
- a communication interface to a higher layer network node;
- a handover unit configured to request that the higher layer network node make a decision regarding a target cell to which to handover a particular wireless terminal when the base station node does not have roaming configuration information for the particular wireless terminal, the target cell being shared by plural public land mobile networks;
- and wherein the handover unit is configured:
- to determine whether there is a handover restriction list (HRL) for the particular wireless terminal;
- when there is no handover restriction list (HRL) for the particular wireless terminal, to request that the higher layer network node make a selection of one of the plural public land mobile networks for the target cell.
A method of operating a communications network comprising a radio access network and a higher layer network, the radio access network comprising a source base station node, the method comprising:
- determining a need of a handover for a particular wireless terminal from a cell served by the source base station to another cell;
- when there is no handover restriction list (HRL) for the particular wireless terminal, the source base station node requesting that a node of the higher layer network make a decision regarding a target cell including a selection of one of the plural public land mobile networks for the target cell to which to handover the particular wireless terminal when the source base station node does not have roaming configuration information for the particular wireless terminal, the target cell being shared by plural public land mobile networks (PLMNs).
Dependencies are inferred from the claim text.