Rogue unit detection information

An apparatus comprising a user equipment, the apparatus comprising:

• a processor that:
• maintains rogue unit detection information, wherein the rogue unit detection information comprises information for detecting a rogue unit, the rogue unit comprises a false base station, the rogue unit detection information comprises a public key and a validity time corresponding to the public key, the public key is received in broadcast signaling for a plurality of user equipments, and the validity time is received within system information for the user equipment;
• and
• determines whether the validity time for the public key is within an expiration window;
• a transmitter that, in response to determining that the validity time for the public key is within the expiration window, transmits a request for new rogue unit detection information comprising a new public key and a new validity time corresponding to the new public key to a network unit;
• and
• a receiver that receives the new rogue unit detection information.

A method comprising:

• determining at a network unit, whether a user equipment has rogue unit detection information expiring within an expiration window, wherein the rogue unit detection information comprises information for detecting a rogue unit, the rogue unit comprises a false base station, the rogue unit detection information comprises a public key and a validity time corresponding to the public key, the public key is received in broadcast signaling for a plurality of user equipments, and the validity time is received within system information for the user equipment;
• in response to determining that the user equipment has rogue unit detection information expiring within the expiration window, determining, at the network unit, new rogue unit detection information comprising a new public key and a new validity time corresponding to the new public key for the user equipment;
• and
• transmitting, from the network unit, the new rogue unit detection information to the user equipment.

An apparatus comprising a network unit, the apparatus comprising:

• a processor that:
• determines whether a user equipment has rogue unit detection information expiring within an expiration window, wherein the rogue unit detection information comprises information for detecting a rogue unit, the rogue unit comprises a false base station, the rogue unit detection information comprises a public key and a validity time corresponding to the public key, the public key is received in broadcast signaling for a plurality of user equipments, and the validity time is received within system information for the user equipment;
• and
• in response to determining that the user equipment has rogue unit detection information expiring within the expiration window, determines new rogue unit detection information comprising a new public key and a new validity time corresponding to the new public key for the user equipment;
• and
• a transmitter that transmits the new rogue unit detection information to the user equipment.