17.04.2015 Views

LTE X2 Handover Messaging - EventHelix.com

LTE X2 Handover Messaging - EventHelix.com

LTE X2 Handover Messaging - EventHelix.com

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

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 />

© 2013 <strong>EventHelix</strong>.<strong>com</strong> Inc. 6

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!