Understanding LTE Model Internals and Interfaces
Understanding LTE Model Internals and Interfaces
Understanding LTE Model Internals and Interfaces
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1581 <strong>Underst<strong>and</strong>ing</strong> <strong>LTE</strong> <strong>Model</strong> <strong>Internals</strong> <strong>and</strong> <strong>Interfaces</strong>The Purpose of PHY Unnamed Fields• Unnamed fields are “read only”• Burst Information (WrlsT_Phy_Mcarrier_Burst_Info):• Provides information about how the packet is mapped on the OFDM resourcesin form of a rectangle• Used in interference calculations by determining the overlap between a pairof rectangles• Also pathloss computations need frequency information to compute thepathloss accurately• Channel Information (WrlsT_Phy_Chnl_Info):• Carries information about the specific wireless channel modeled by each UE• Each UE can customize its own pathloss <strong>and</strong> multipath models• Different UEs can be connected to different eNodeBs, <strong>and</strong> the physical layerprofiles of those eNodeBs can be different• Also carries stath<strong>and</strong>les for recording the PHY statistics• Ideal place to insert various customization elements• Custom information for custom pathloss, multipath models etc.CONFIDENTIAL ─ 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.69