Release Change Reference, StarOS Release 21.20/Ultra Services Platform Release 6.14

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Updated:: October 21, 2021

Chapter: Connection Release when UE in Idle Mode

Connection Release when UE in Idle Mode
Feature Summary and Revision History
Feature Changes

Connection Release when UE in Idle Mode

Feature Summary and Revision History

Summary Data


Applicable Product(s) or Functional Area	MME
Applicable Platform(s)	ASR 5500 VPC-DI VPC-SI
Feature Default	Enabled - Always-on
Related Changes in This Release	Not Applicable
Related Documentation	Ultra IoT C-SGN Administration Guide

Revision History


Revision Details	Release
First Introduced	21.20.26

Feature Changes

Previous Behavior: In MME, when UE is in Idle mode, Connection Release (CMR - Connection Management Request) received from SCEF was not supported.

New Behavior: In this StarOS 21.20.26 release, MME supports the Connection Release (CMR - Connection Management Request) received from SCEF when UE in the Idle mode.

Without PDN support, if Connection Release is requested from SCEF for the last PDN in the UE Idle mode, MME initiates:

Paging when ppf flag was TRUE
Detach with Re-Attach required towards UE after successful completion of paging.

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