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APPARATUSES AND METHODS FOR PROTECTING AN INTIAL NON-ACCESS STRATUM (NAS) MESSAGE AFTER A PUBLIC LAND MOBILE NETWORK (PLMN) CHANGE
APPARATUSES AND METHODS FOR PROTECTING AN INTIAL NON-ACCESS STRATUM (NAS) MESSAGE AFTER A PUBLIC LAND MOBILE NETWORK (PLMN) CHANGE
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机译:公用陆地移动网络(PLMN)更改后用于保护初始非访问层(NAS)消息的装置和方法
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摘要
A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception. The controller selects a PLMN via the wireless transceiver, and determines whether a predetermined ciphering algorithm is adopted for a Non-Access Stratum (NAS) security context. In response to selecting the PLMN and the predetermined ciphering algorithm being adopted for the NAS security context, the controller sends an initial NAS message in which Information Elements (IEs) are in cleartext only to the selected PLMN via the wireless transceiver.
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