While making a session on mobile broadband service, server will check whether the parameters sent by session from mobile broadband subscriber has meet the condition or not. AAA server will reject the session if it does not meet the condition and allowing to the next process if the authentication process is pass. The Authentication, Authorization and Accounting (AAA) call process of mobile broadband session is running on the application layer, mobile broadband subscriber did not aware about the process. Mobile broadband subscriber needs only to make a session while they want to access to internet

Authentication process on mobile broadband service requires several parameters depend on the network platform implemented by telecommunication companies to provide mobile broadband service. The parameters sent to AAA server while mobile broadband subscriber initiate sessions are

1. Username and password

AAA server already specified the unique username and password that should be sent by mobile broadband subscriber while they initiate a session. AAA server is also specifying the domain that those username and password will be classified. Authentication request from subscriber should contain the same value which already specify on the AAA server. In case username or password does not match, then AAA servers will response with authentication reject. A notification will be displayed on the mobile broadband subscriber with certainty value such as “Invalid Username and Password”

2. IMSI (International Mobile Subscriber Identity)

CDMA platform will check mobile broadband subscriber’s IMSI (International Mobile Subscriber Identity) when authentication process happens. IMSI (International Mobile Subscriber Identity) is 15 digit numbers which divided into digits of MNC (Mobile Network Code), MCC (Mobile Country Code) and MDN (Mobile Directory Number). Authentication process will check whether session from mobile broadband subscriber has valid IMSI or not. In case the IMSI is valid then will go to the next step and if the IMSI is valid the session will be terminated and AAA server will send authentication reject message

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