DSP Implementation of DMRS in PUSCH within TD-LTE-A System

Ai Ping Zhang; De Ming Zhang; Dan Wang; Yang Zhou

doi:10.4028/www.scientific.net/AMM.543-547.2513

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 543-547DSP Implementation of DMRS in PUSCH within...

DSP Implementation of DMRS in PUSCH within TD-LTE-A System

Abstract:

Demodulation reference signal plays a very important role in channel estimation and equalization in the receiver within the LTE-A system. First, this paper provides the various formulas that generate the demodulation reference signal (DMRS) in the physical uplink Shared channel (PUSCH), and then presents the design flow chart for programming realization. After that, Using TI(Texas Instruments corporation) TMS320C6455 DSP, it generates DMRS in PUSCH by software programming. Finally, this paper specifically describes the realization of division and exponentiation because it is the hardest and most time-consuming operation in the DSP implementation. The method written in this paper could be applied to TD-LTE-Advanced system test platform development and testing techniques.

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Periodical:

Applied Mechanics and Materials (Volumes 543-547)

Pages:

2513-2517

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.543-547.2513

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Online since:

March 2014

Authors:

Ai Ping Zhang*, De Ming Zhang, Dan Wang, Yang Zhou

Keywords:

DMRS, DSP Realization, LTE-A, ZC Sequences

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* - Corresponding Author

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