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Method and device for accessing and obtaining user equipment context and user equipment identity

  • US 9,838,916 B2
  • Filed: 12/15/2016
  • Issued: 12/05/2017
  • Est. Priority Date: 06/18/2008
  • Status: Active Grant
First Claim
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1. A method for access, comprising:

  • receiving, by a mobility management entity (MME) served as an old MME, a context request including an old routing area identification (RAI), a packet temporary mobile subscriber identity (P-TMSI) and a P-TMSI signature from a serving general packet radio service (GPRS) support node (SGSN);

    reconstructing, by the MME, a global unique temporary identity (GUTI) from the old RAI, the P-TMSI and the P-TMSI signature;

    obtaining, by the MME, a user equipment (UE) context of a UE according to the GUTI; and

    returning, by the MME, the UE context of the UE to the SGSN.

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