Mention some scenarios, when UE abort RRC connection?

Question

Please explain the scenarios when RRC state RRC_CONNECTED changes to RRC_IDLE, also how this happen?

Answer 1

Following are the scenarios which I could recall:

• In case of detach procedure
• When eNB sends rrcConnectionRelease
• In case of EAB
• Authentication failure
• Security failure
• Receiving rrcConnectionReconfiguration before establishing the security
• T311 expiry
• T301 expiry