Understanding LTE Model Internals and Interfaces
Understanding LTE Model Internals and Interfaces
Understanding LTE Model Internals and Interfaces
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
1581 <strong>Underst<strong>and</strong>ing</strong> <strong>LTE</strong> <strong>Model</strong> <strong>Internals</strong> <strong>and</strong> <strong>Interfaces</strong>Demo 1: <strong>LTE</strong> Capacity Planning Study• The OT table capacity estimate is nice, BUT• It is an “estimate” with the assumption that a single UE occupies the whole channel• Typically multiple UEs share the channel• Different MCS indexes, different traffic requirements• Estimate is based upon ideal conditions <strong>and</strong> cannot account for dynamic changes• Extra allocations required due to channel errors• How to use OPNET <strong>Model</strong>er for planning studies• Map application traffic to GBR bearers <strong>and</strong> set up a traffic contract to closely match theapplication requirements + lower layer overheads• Admission control: Acts as the first filter in capacity estimation: Find out how many GBRbearers are active• Monitor the shared channel usage statistics to underst<strong>and</strong> how they are utilized• Uplink <strong>and</strong> Downlink should be analyzed separately• Find out if one of them acts as a bottleneck• Implement possible customizations to improve performance• We will learn some tricks in lab 2• Draw inferences, make adjustments <strong>and</strong> find the configurations that give satisfactory resultsCONFIDENTIAL ─ RESTRICTED ACCESS: This information may not be disclosed, copied, or transmitted in any format without the prior written consent of OPNET Technologies, Inc. © 2010 OPNET Technologies, Inc.31
Change language