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Method for handling attach reject message with #14 cause at user equipment

  • US 10,244,087 B2
  • Filed: 06/30/2016
  • Issued: 03/26/2019
  • Est. Priority Date: 04/17/2015
  • Status: Active Grant
First Claim
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1. A method for handling an ATTACH reject message with packet radio service mobility management reject cause number 14 (#14 cause) at a user equipment (UE), the method comprising:

  • receiving, at the UE, an ATTACH accept message for a network service on a public land mobile network (PLMN) from a first network entity if a non-access stratum (NAS) timer is expired, wherein the PLMN is in a “

    forbidden PLMNs for general packet radio service (GPRS) service”

    list;

    detecting, by the UE, that the UE'"'"'s evolved universal terrestrial radio access (E-UTRA) capability is disabled; and

    enabling, by the UE, the UE'"'"'s E-UTRA capability and removing the PLMN from the “

    forbidden PLMNs for GPRS service”

    list.

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