| CPC H04W 40/24 (2013.01) | 20 Claims |

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1. A method, comprising:
determining, by a network device, a user equipment route selection policy for a first network slice;
providing, by the network device, the user equipment route selection policy to a user equipment via non-access stratum signaling;
determining, by the network device, an updated user equipment route selection policy for a second network slice that is different than the first network slice;
determining, by the network device, that the non-access stratum signaling is unavailable for the user equipment; and
providing, by the network device and based on determining that the non-access stratum signaling is unavailable, the updated user equipment route selection policy to a subscriber identity module (SIM) over-the-air (OTA) system to cause the SIM-OTA system to provide the updated user equipment route selection policy to the user equipment.
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