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Core network node selection in radiocommunication systems having home gateways

  • US 10,045,198 B2
  • Filed: 10/07/2009
  • Issued: 08/07/2018
  • Est. Priority Date: 06/25/2009
  • Status: Active Grant
First Claim
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1. A method for selecting a Mobility Management Entity (MME) for establishment of a connection between the selected MME and a user equipment (UE) in a radio communication system, the method comprising:

  • receiving, at a home gateway, a connection establishment message including information facilitating selecting the MME, wherein said home gateway functions as a proxy for a plurality of home base stations;

    selecting, by the home gateway, said MME for establishment of said connection using said information,wherein said information includes at least one of a Globally Unique Mobility Management Entity Identity (GUMMEI) and a Mobility Management Entity Code (MMEC), andwherein said selecting step includes, if a first MME Group Identity (MMEGI) extracted from said information matches a second MMEGI of an MME pool, selecting said MME from said MME pool, and if said extracted MMEGI does not match said second MMEGI of said MME pool, randomly selecting said MME to be an MME outside said MME pool,further wherein said selecting step is performed by the home gateway prior to the transmission of the connection establishment message to said selected MME,wherein said connection establishment message is an S1AP INITIAL UE MESSAGE including a non-access stratum (NAS) message,wherein said connection establishment message includes, outside said NAS message, one of a GUMMEI field, and an MME Code (MMEC) field; and

    wherein when said S1AP INITIAL UE MESSAGE includes said GUMMEI field, then MMEC is extracted from said GUMMEI field.

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