Data transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsJiangwei Ying, Jing Chen, Lingli Pang, Xiaoxiao Zheng
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Abstract
The present invention provides a data transmission method and apparatus, where the method includes: performing, by UE, security processing on a NAS PDU by using a security parameter and a security algorithm, where data to be transmitted is encapsulated in the NAS PDU; and sending, by the UE, the NAS PDU to a serving SGSN by using an RNC. The present invention can improve efficiency of transmitting a small data packet, and further provide a security mechanism to ensure security of transmitting the small data packet.
Claims10
A data transmission method, comprising:
- sending, by the user equipment (UE), a radio resource control (RRC) connection request message to a radio network controller (RNC), wherein the RRC connection request message comprises a security algorithm supported by the UE;
- receiving, by the UE, an RRC Connection Setup message sent by the RNC, wherein the RRC Connection Setup message comprises a security algorithm indicated by the RNC that corresponds to the security algorithm supported by the UE;
- performing, by the UE, security processing on a non-access stratum protocol data unit (NAS PDU) using a security parameter and the security algorithm indicated by the RNC, wherein data to be transmitted is encapsulated in the NAS PDU;
- and
- sending, by the UE, the NAS PDU to a Serving General Packet Radio Service Support Node (SGSN) by using the RNC.
A user equipment, comprising:
- a transmitter, configured to send a radio resource control (RRC) connection request message to a radio network controller (RNC), wherein the RRC connection request message comprises a security algorithm supported by the UE;
- a receiver, configured to receive an RRC Connection Setup message sent by the RNC, wherein the RRC Connection Setup message comprises a security algorithm indicated by the RNC that corresponds to the security algorithm supported by the UE;
- a processor, configured to perform security processing on a non-access stratum protocol data unit (NAS PDU) using a security parameter and the security algorithm indicated by the RNC, wherein data to be transmitted is encapsulated in the NAS PDU,
- wherein the transmitter is further configured to send the NAS PDU to a Serving General Packet Radio Service Support Node (SGSN) by using the RNC.
Dependencies are inferred from the claim text.