ENodeB sending SI change when UE will be detected in next BCCH period

Dear Experts,

Why does my eNodeB send system information change if UE will detect this change on next BCCH period?

This notification is sent in both idle and connected RRC state

This post is transcribed from the LTE Whatsapp group

http://lteinwireless.blogspot.in/2011/06/all-about-sibs-in-lte.html

This helps to show how SIBs acquired in LTE