An authentication method, base station, user equipment and core network element

Abstract

The invention relates to an authentication method, a base station, user equipment and core network elements. The authentication method includes: the base station receives the first message sent by the user equipment, the first message includes uplink data, the user equipment identifier and the first authentication result; sends an authentication request message to the network element of the core network, the authentication request message includes the user The device identifier or the group identifier of the group to which the user equipment belongs or the cell identifier of the cell to which the user equipment belongs; receiving an authentication response message sent by the network element of the core network, where the authentication response message includes a second authentication result, and the second authentication The result is the authentication result calculated by the network element of the core network according to the authentication request message; comparing the first authentication result and the second authentication result, if they are the same, sending uplink data to the network element of the core network. The security verification of the user equipment by the base station prevents the data of the illegal UE from reaching the network elements of the core network, improves security, and saves transmission resources compared with the prior art.

Description

technical field [0001] The present invention relates to the communication field, in particular to an authentication method, a base station, user equipment and a core network element. Background technique [0002] When the user equipment (User Equipment, UE) in the idle state needs to transmit uplink data, the UE first needs to establish a radio resource control (Radio Resource Control, RRC) connection with the base station through random access, and enter the RRC connection state to obtain an uplink authorization (Uplink Grant) before the subsequent uplink data transmission can be performed, however. The RRC connection establishment process involved in the UE state transition will bring a lot of delay. In order to meet the delay requirements of services in the 5G communication network, the application of some scenarios in the prior art uses connectionless transmission, that is, the UE in the idle state When uplink data transmission is required, it does not perform random ac...

AI Technical Summary

Problems solved by technology

[0003] However, in the wireless transmission of the prior art, when the base station receives the uplink data, it only forwards the uplink data packet according to the user equipment identifier carried in the uplink data packet, and does not authenticate the UE transmitting the uplink data packet, which will cause Unauthenticated UE data is sent to the core network, causing security issues. In addition, if the core network determines that the UE that sent the data is illegal after receiving the data, it needs to discard the received data, resulting in a waste of transmission resources.

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