(EN) User data may be transmitted through a signaling radio bearer (SRB) by using an NAS message. A new SRB different from the existing SRB0, SRB1, and SRB2 may be defined for transmission of the user data. The new SRB may be used to deliver the NAS message containing the user data before security is activated.
(ZH) 可以通过使用NAS消息通过信令无线电承载(SRB)发送用户数据。可以定义与现有SRB0、SRB1和SRB2不同的新SRB以用于发送用户数据。在激活安全性之前,新SRB可用于传递包含用户数据的NAS消息。