which can ensure the consistency and continuity of GSM/TD-SCDMA and TD-LTE network
is one of the main principles of TD-LTE network construction. Firstly
the paper introduces the authentication and security mechanisms of UMTS subscribers in GSM/ TD-SCDMA network
which is define by 3GPP
and the security features and the security mechanisms of TD-LTE. Secondly
the paper discusses the authentication and security mechanisms of UMTS subscribers in the converged network of GSM/TD-SCDMA/TD-LTE
especial for the authentication and security mechanisms of UMTS subscribers switching between GSM/TD-SCDMA and TD-LTE. Finally
the paper proposes the architecture scheme that using the UDC HLR to resolve the network access security for UMTS subscribers in the converged network of GSM/TD-SCDMA/TD-LTE.