LTE: How does network define the list of tracking area identities for a user ?

Question

Does the MME or LTE core network assign the same list of TAI to each user originates from same cell ?
If answer is "no" then what would be all possible methods to manage this task ?

Answer 1

Each vendor and operator may have different implementation of tacking area management as per their requirement. Number of subscribers are not unique across the LTE network geography.
Following things may be considered for choosing suitable tracking area management scheme:
- An individual subscriber/group of subscriber (Closed subscriber group) mobility pattern.
- Subscriber density at a particular area.

Usually, network avoid TAU flood which may happen when a huge number of subscriber moving together from one cell to another cell.
For example: Travelling by bullet train is one of the examples.