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><strong>LTE</strong> Frame Structure in FrequencyDomain• A resource block consists of 12 subcarriers,each 15 kHz wide• A pair of two Resource Blocks (RBs) isthe minimum allocation unit used by thescheduler while determining theallocations on a frame• The pairing is in time domain, making theallocation unit one subframe (1 ms) in length• The term transport block (TB) is sometimesused for the pair. Some resources use the termresource block to refer to the transport block• Downlink reference symbols occupy 4resource elements in each RB• Uplink reference symbols occupy 12resource elements in each RB• This overhead is accounted for whilecomputing the frame capacity for theadmission control procedureCONFIDENTIAL ─ 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.29
Change language