RRC Connection Reject (MO call)

Question

Q-1-I observed a scenario like when initiating MO call ,RRC connection establishment fails(RRC connection reject) due to cell reselection completion prior to receiving RRC connection setup.In this case which will be given a priority ,Cell reselection or Call ?

Q-2: What are other possible RRC connection failure reasons could happen from UE or Network perspective ?

Answer 1

for question 2 , reasons for RRC failure can due to the following.
1. UE no reply, UE does not send RRC connection setup complete message when eNODEB has sent RRC Connection setup message.
2. RRC reject due to lack of PUCCH resources.
3. RRC setup fail due to Resource Fail
4.RRC setup fail due to SRS.