LTE中 detach发起的原因有哪些

你好，网络侧发起detach的原因如下：

IMSI unknown in HSS
Illegal UE
IMEI not accepted
Illegal ME
EPS services not allowed
EPS services and non-EPS services not allowed
UE identity cannot be derived by the network
Implicitly detached
PLMN not allowed
Tracking Area not allowed
Roaming not allowed in this tracking area
EPS services not allowed in this PLMN
No Suitable Cells In tracking area
MSC temporarily not reachable
Network failure
CS domain not available
ESM failure
MAC failure
Synch failure
Congestion
UE security capabilities mismatch
Security mode rejected, unspecified
Not authorized for this CSG
Non-EPS authentication unacceptable
Requested service option not authorized
CS service temporarily not available
No EPS bearer context activated
Semantically incorrect message
Invalid mandatory information
Message type non-existent or not implemented
Message type not compatible with the protocol state
Information element non-existent or not implemented
Conditional IE error
Message not compatible with the protocol state
Protocol error, unspecified