METHOD, DEVICE AND SYSTEM FOR SENDING COMMUNICATION INFORMATION

摘要

Methods and apparatus are provided for protecting data carried on an Un interface. The method includes: negotiating an integrity protection algorithm and an encryption algorithm for signaling data on a signaling radio bearer SRB over the Un interface, signaling data on a data radio bearer DRBs over the Un interface, and user data on a data radio bearer DRBd over the Un interface, respectively; and performing security protection for the signaling data on the SRB, the signaling data on the DRBs, and the user data on the DRBd with the respective integrity protection algorithm and encryption algorithm. According to the method and system in the embodiments, integrity protection algorithms and encryption algorithms are adopted for data on three classes of RBs over the Un interface are protected with respective integrity protection algorithm and encryption algorithm. Therefore, the security protection on the Un interface is more comprehensive, and the security protection requirements of data on different RBs can be met.