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>Propagation Effects: Multipath <strong>and</strong>Pathloss• Pathloss called from the pipeline wrls_power.ps.c• Function wrls_phy_packet_pathloss_compute() defined inwrls_phy_support.ex.c• “Burst information” of the packet carries the pathloss model configured atthe UE: Can easily be customized (lab 3)• Multipath model called from the pipeline wrls_snr.ps.c• Function wrls_phy_effective_snr_get defined in wrls_phy_support.ex.c• Calls wrls_phy_mpath_effective_snr_compute()• In turn calls a user extensible callback function passed during theinitialization of the receiver element: wrls_phy_mpath_lte_init_proc()defined in wrls_phy_support.ex.c• The multipath function used for <strong>LTE</strong> iswrls_phy_mpath_lte_effective_snr_compute() defined inwrls_phy_support.ex.cCONFIDENTIAL ─ 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.72
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