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SELECTION OF A POLICY AND CHARGING CONTROL UNIT BY A DIAMETER ROUTING UNIT

  • US 20160127137A1
  • Filed: 07/03/2013
  • Published: 05/05/2016
  • Est. Priority Date: 07/03/2013
  • Status: Active Grant
First Claim
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1. A method, by a diameter routing unit, to route a diameter message of a data packet session using a diameter protocol in a mobile communications network in which at least two policy and charging control units are provided for policy and charging control of data packet sessions, the method comprising:

  • receiving a diameter message for a data packet session via one of a Gx interface or and a Gxx interface;

    checking, whether in the received diameter message an indicator is set, the indicator indicating that the received message received from any one of the two interfaces is relating to a data packet session for which another diameter message has already been received via the other of the two interfaces and for which the policy and charging control unit has already been selected;

    if the indicator is set;

    accessing a database containing information which policy and charging control unit is handling which data packet session and containing information about the at least two policy and charging control units that are available for selection by the diameter routing unit;

    identifying the policy and charging control unit that is controlling the data packet session to which the received diameter message belongs; and

    directing the received diameter message to the identified policy and charging control unit; and

    if the indicator is not set;

    selecting any one of the at least two policy and charging control units; and

    directing the received diameter message to the selected policy and charging control unit.

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