Supported Functionality

The IDFT feature supports the following functionality:

  • Create IDFT request for Collapsed, Pure-S, combination of Collapsed and Pure-S multi-PDN calls with multiple bearers.

  • Data transfer on downlink and uplink IDFT bearers.

  • Deletion of IDFT request from MME. Also, timer-based deletion of IDFT bearer after expiration of a default value of 100 seconds, if the MME does not send an IDFT request for deletion.

  • Deletion of IDFT PDN, including Clear/Delete subscribers from MME/P-GW, when normal PDN goes down.

  • IDFT creation of Sx Failure Handling for Pure-S and Collapsed PDN.

Important

Transport GTP-U address capability is assumed to be same across eNodeB and S-GW.