LTE X2 Handover Messaging - EventHelix.com
LTE X2 Handover Messaging - EventHelix.com
LTE X2 Handover Messaging - EventHelix.com
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S1AP Path Switch Request<br />
Target eNodeB MME<br />
S1AP Path Switch Request<br />
• The target eNodeB requests<br />
switching of the S1-U GTP tunnel<br />
towards the target eNodeB.<br />
• The MME identifies the UE with<br />
the “eNB to UE S1AP ID”<br />
• The message includes the new cell<br />
id and the tracking area id<br />
• Security capabilities of the target<br />
eNodeB are also included.<br />
eNB UE S1AP ID<br />
eRABs to be<br />
Switched DL List<br />
<strong>EventHelix</strong>.<strong>com</strong><br />
• design with sequence diagrams<br />
• tele<strong>com</strong> systems engineering<br />
• object oriented design<br />
eRABs to be<br />
Switched DL Item 0<br />
…<br />
eRABs to be<br />
Switched DL Item N-1<br />
PLMN Id<br />
eRAB Id<br />
Transport Layer<br />
Address<br />
GTP TEID<br />
EUTRAN CGI<br />
Cell Id<br />
PLMN ID<br />
TAI<br />
TAC<br />
UE Security<br />
Capabilities<br />
Encryption<br />
Algorithms<br />
Integrity Protection<br />
Algorithms<br />
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