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Enforcing service policies in embedded UICCs

  • US 9,942,755 B2
  • Filed: 08/20/2015
  • Issued: 04/10/2018
  • Est. Priority Date: 08/25/2014
  • Status: Active Grant
First Claim
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1. A method for implementing a subsidy lock on a mobile device, the method comprising:

  • at an embedded Universal Integrated Circuit Card (eUICC) included in the mobile device, wherein the eUICC is configured to manage a plurality of electronic Subscriber Identity Modules (eSIMs);

    receiving a request to install or enable a particular eSIM of the plurality of eSIMs;

    determining, based on a policy enforced by the eUICC, whether an International Mobile Subscriber Identity (IMSI) associated with the particular eSIM is valid;

    in response to identifying that the particular eSIM is valid;

    installing or enabling the particular eSIM on the eUICC;

    in response to identifying that the particular eSIM is not valid;

    preventing the particular eSIM from being installed or enabled on the eUICC; and

    in response receiving an updated policy, and for each eSIM of the plurality of eSIMs;

    disabling or deleting the eSIM in response to determining that an IMSI associated with the eSIM is invalid based on the updated policy.

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