A 1xEVDO network includes an access terminal that generates an access terminal
ID as a part of the call setup signals it generates when setting up a data call.
In order to determine whether the user ID is authorized to access the 1xEVDO wireless
data network, a AAA server is formed to include a table that identifies authorized
access terminals, by access terminal ID, for access to the 1xEVDO wireless data
packet network. In one embodiment of the present invention, the wireless access
terminal also is formed to perform an algorithmic calculation upon a received random
number and to produce the results to an access network controller. The AAA server,
then, is formed to determine whether the results produced by the access terminal
are correct. In one embodiment of the invention, the AAA server is formed to perform
the same algorithmic calculation. In another embodiment of the invention, the AAA
server is formed to compare the received results from the access terminal's algorithmic
calculation to a value stored in memory.
