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Methods, apparatus, and systems using enhanced dedicated core network (DCN) selection

  • US 10,667,190 B2
  • Filed: 10/31/2016
  • Issued: 05/26/2020
  • Est. Priority Date: 11/06/2015
  • Status: Active Grant
First Claim
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1. A method, implemented by a WTRU that is in idle mode, comprising:

  • sending, by the WTRU, a Service Request (SR) to change the WTRU to connected mode;

    receiving, by the WTRU, a GUTI/P-TMSI Reallocation Command that includes assistance information indicating a new or a changed dedicated core network (DCN) to serve the WTRU;

    storing, by the WTRU in nonvolatile memory, the assistance information indicating the new or changed DCN to serve the WTRU;

    receiving, by the WTRU, a Connection Release message; and

    sending, by the WTRU a Tracking Area Update Request or a Routing Area Update Request including the assistance information indicating the new or changed DCN to serve the WTRU.

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