The present invention provides a data transmission method, a user device and a network side device, in which the user device UE encrypts and protects the packet by using an encryption key and the integrity protection key, in which the encryption key and the integrity protection key are generated by the UE according to the UE. The first random number is generated or generated from the second random number received from the network side device, which includes the identification of the UE and the user data; the UE sends the encrypted and integrity protected data packets to the network side device when the UE is not connected to the wireless resource control RRC of the base station. The invention can realize the secure transmission of data and reduce the signaling cost when the RRC connection is not established between the UE and the base station.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请,...
【专利技术属性】
技术研发人员:刘菁,黄敏,舒兵,
申请(专利权)人:华为技术有限公司,
类型:发明
国别省市:广东,44
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