Synopsys has added Time Division Duplex (TDD) mode in its LTE Model Library for physical layer system simulation. This enables developers of semiconductors for LTE network equipment and devices to quickly and reliably extend their designs to support this important version of the 3rd Generation Partnership Project (3GPP) LTE standard. Synopsys already supported Frequency Division Duplex (FDD) for LTE. 
Synopsys’ LTE library includes models of the transmitter and the physical channel as defined in the 3GPP standard as well as functional models of ideal receivers that can serve as references, providing an end-to-end simulation chain for both uplink and downlink transmission and reception. By leveraging both FDD and TDD mode models from the LTE Model Library, designers can focus on the development of highly-optimized, multi-mode modems for the entire LTE standard.
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