The messages in this procedure are: IDENTITY REQUEST IDENTITY RESPONSE IDENTITY REQUEST The identification procedure is used by the network to request a particular UE to provide specific identification parameters, e.g. the International Mobile Subscriber Identity (IMSI) or the International Mobile Equipment Identity (IMEI). The network …
The purpose of the NAS Security Mode Control Procedure is to take an EPS security context into use, and initialise and start NAS signalling security between the UE and the MME with the corresponding EPS NAS keys and EPS security algorithms. This enables UE to send …
ATTACH COMPLETE is sent in response to ATTACH ACCEPT message. This message will be sent by UE to Network. Attach Complete is piggy backed with RRC Connection Reconfiguration Complete. The total RRC Connection Reconfiguration Complete message will consist of: RRC : RRC Connection Reconfiguration Complete + …
LTE attach accept message is sent by the network to UE. It is the response for ATTACH REQUEST. Similar to ATTACH REQUEST, ATTACH ACCEPT will be included in RRC CONNECTION RECONFIGURATION message. Including a message inside another message is called as piggy backed message. The result …
In this tutorial we shall see what is attach request and the Information Elements (IE) present in Attach Request. Attach Request is a NAS layer message procedure. It will be initiated by UE to MME. As eNB will not have NAS protocol, the Attach request will …