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Technology Overview
3500988-0001 Revision A
3.
On receiving the Activate PDP Context message, the Core
Network checks the user's subscription record to establish
whether the request is valid. If the request is valid, a
virtual connection is established between the Terminal and
the Core Network, and data transfer can then take place
between the Terminal and the external data network,
within the scope of the current PDP Context. The PDP
Context is stored in both the Terminal and the Core
Network.
A single Terminal may have multiple PDP Contexts each with
different QoS profiles. The primary PDP Context is a PDP
Context with default QoS profile attributes and is always
activated first. All other PDP Contexts with the same PDP
Address are secondary PDP Contexts. Secondary PDP Contexts
share the same PDP Address and connect to the same APN but
may have different QoS profiles.
