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Apparatus and methods for improved handover in multi-operator shared radio access network communications systems

  • US 9,967,785 B2
  • Filed: 03/23/2005
  • Issued: 05/08/2018
  • Est. Priority Date: 03/23/2005
  • Status: Active Grant
First Claim
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1. A method for connection handover between cells or base stations of an at least partly shared radio access network of a radio communication system, the method comprising the steps of:

  • determining at a shared radio access network node, a serving operator associated with a user equipment according to an identity of an interface between the radio access network node and a core network of the radio communications system, the serving operator determined using a table that associates the identity of the interface with the serving operator, wherein the interface is an lu interface of a Wideband Code Division Multiple Access (WCDMA) system;

    establishing at the shared radio access network node a neighbor-cell list including cells shared with or run by the serving operator and excluding cells run by a second operator not shared with the serving operator, the second operator not serving the user equipment;

    transferring the neighbor-cell list to the user equipment involved in the connection; and

    facilitating in the handover of the user equipment to a cell on the neighbor cell list.

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