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Method and nodes for paging in a radio access network

  • US 10,104,639 B2
  • Filed: 07/09/2012
  • Issued: 10/16/2018
  • Est. Priority Date: 07/09/2012
  • Status: Active Grant
First Claim
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1. A method for paging a user equipment, UE, in a radio access network, RAN, served by a core network node, wherein, upon UE signaling to the RAN, a service area identity, SAI, included in a respective message from each UE, the SAI is received and registered in the core network node, the method performed in the core network node comprising:

  • the core network node receiving one or more data packets to be sent to the UE, which is attached to the radio access network;

    analyzing the received one or more data packets by extracting information included in the one or more received data packets;

    the core network node determining a predetermined permitted latency for delivery of the one or more data packets to the UE in accordance with the information extracted from the received one or more data packets, the predetermined permitted latency specifying an amount of time that is permitted for delivery of the received one or more data packets to the UE upon reception at the core network node;

    in response to determining that the predetermined permitted latency exceeds a predetermined latency threshold, (i) the core network node retrieving the SAI registered for the UE, and (ii) the core network node directing a first page of the UE to cells belonging to a first paging area, wherein the first paging area is determined by the retrieved SAI.

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