Omar

The attach procedure identifies some of the important UE capabilities via the NAS signaling between the MME and the UE. In which, the UE may indicate it is SRVCC UE capable. According to clause 5.11.3 of TS 23.401, the UE...

Purpose of SRVC operation possible indication: It is an indication flag, if set to true at the eNB, then the UE and the network are SRVCC capable. Otherwise, either the UE or the network is not SRVCC capable . SRVCC...

The MME may obtain the P-GW list for PDN connectivity of a specific APN (Access Point Name). However, if the MME uses APN-FQDN (Fully Qualified Domain Name) to obtain the P-GW list, then an S-NAPTR (Straightforward Name Authority...

APN Usage In LTE, UEs get connected to one or more Packet Data Network (PDN), such as the Internet. The PDN Gateway (P-GW) interconnects LTE to the external PDN. Therefore, as part of the PDN Connectivity process, the UE may...

The MME decides on which APN to select as a default APN based on information provided by the UE during the initial attach, and the subscriber profile received from the HSS in the Update Location Answer. The APN identifies the...