| 摘要 |
<p>Disclosed are a secure data transmission method and an LTE access network. The method comprises: an MeNB obtaining a base station key from a core network, generating a first access layer key according to the base station key, using the first access layer key to encrypt corresponding control plane information and user data, and sending the corresponding control plane information to an LTE user equipment after performing integrity protection on the corresponding control plane information; the MeNB determining a shunting policy of the user data of the LTE user equipment, and sending a request message to a corresponding LPN for providing a multi-stream transmission service for the LTE user equipment; the MeNB receiving a request response sent by the LPN, sending a part of the user data received from the core network to the LTE user equipment after encrypting the corresponding user data using the first access layer key according to the shunting policy, and sending the other part of the user data to the LPN; and the LPN using a second access layer key to encrypt the corresponding user data, and sending the encrypted user data to the LTE user equipment.</p> |
