METHOD AND DEVICE FOR PROTECTING DATA INTEGRITY Russian patent published in 2022 - IPC H04W8/14 

FIELD: communication equipment.

SUBSTANCE: invention relates to a method and a device for protecting data integrity. Terminal device receives an integrity protection algorithm, a key corresponding to a session, and a data bearer (DRB) corresponding to the session, and performs, using an integrity protection algorithm and a key corresponding to the session, the data integrity protection of the DRB corresponding to the session. Different algorithms and keys for protecting integrity can be used for different sessions, and different algorithms and keys for protecting integrity can also be used for different flows. Thus, integrity protection becomes more flexible and meets the security requirements of the same user for different services.

EFFECT: reduced complexity of operation of integrity protection for UE and RAN.

16 cl, 11 dwg, 4 tbl