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>UE AS: R<strong>and</strong>om Access Process• Child process of lte_ue_as.pr.m• Sends a preamble on the r<strong>and</strong>om access channel• Sends an uplink MPDU in the grant contained within the r<strong>and</strong>om access response message• Performs HARQ retransmissions of the uplink MPDU until contention resolution message isreceived or the timer expireslte_rach.pr.mAwaiting r<strong>and</strong>om access response messagefrom the eNodeBAwaiting initial preambletransmissionAwaiting contention resolution message fromthe eNodeBCONFIDENTIAL ─ 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.14
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