Integrity protection and/or ciphering for UE registration with a wireless network

摘要

Techniques for performing registration with a wireless network using integrity protection and/or ciphering are described. A user equipment (UE) may perform a security procedure with the wireless network for a first session and may generate UE security context data at the UE. The UE security context data may include a cipher key used for ciphering, an integrity key used for integrity protection, a temporary UE identity, and/or other information. The UE may use the UE security context data for secure communication with the wireless network during the first session. The UE may store the UE security context data upon termination of the first session. The UE may thereafter use the stored UE security context data for registration with the wireless network for a second session following the first session. The UE may perform integrity protection and/or ciphering for message(s) for registration based on the stored UE security context data.

主权项

1. A method for wireless communication, comprising:
performing a security procedure with a wireless network of a first network type for a first session and generating user equipment (UE) security context data at a UE; using the UE security context data for secure communication with the wireless network during the first session; storing the UE security context data at the UE upon termination of the first session; de-registering at the end of the first session and powering down after the first session; and powering up the UE and using the stored UE security context data for registration with the wireless network of the first network type for a second session following the first session; wherein the stored UE security context data comprises at least one of a cipher key (CK) used for ciphering and an integrity key (IK) used for integrity protection.