An efficient implementation of PRACH generator in LTE UE transmitters

He, Y; Wang, J; Su, Y; Dutkiewicz, E; Huang, X; Shi, J

An efficient implementation of PRACH generator in LTE UE transmitters

He, Y

Wang, J Su, Y Dutkiewicz, E

Huang, X

Shi, J

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Publication Type:: Conference Proceeding
Citation:: IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference, 2011, pp. 2226 - 2230
Issue Date:: 2011-09-12

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Field	Value	Language
dc.contributor.author	He, Y https://orcid.org/0000-0003-1603-9375	en_US
dc.contributor.author	Wang, J	en_US
dc.contributor.author	Su, Y	en_US
dc.contributor.author	Dutkiewicz, E https://orcid.org/0000-0002-4268-9286	en_US
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732	en_US
dc.contributor.author	Shi, J	en_US
dc.date.issued	2011-09-12	en_US
dc.identifier.citation	IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference, 2011, pp. 2226 - 2230	en_US
dc.identifier.isbn	9781424495399	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119461
dc.description.abstract	An efficient hardware-optimized Physical Random Access Channel (PRACH) baseband signal generation algorithm and its ASIC implementation in the LTE user equipment (UE) transmitter are presented in this paper. A simplified DFT of the Zadoff-Chu (ZC) sequence as well as a phase computation are applied to the prime size DFT of the PRACH preamble and the large size IDFT is accomplished by groups of smaller size IFFTs. The optimized algorithm achieves significantly lower computational complexity compared with the original algorithm in the LTE specification and better performance compared to another publication. The ASIC architecture is also designed to reduce the memory size and logic complexity, which achieves a low hardware cost in terms of the cell area. The proposed design was implemented in 65nm CMOS and it was demonstrated that this design can satisfy the timing requirements of the LTE specification. © 2011 IEEE.	en_US
dc.relation.ispartof	IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference	en_US
dc.relation.isbasedon	10.1109/IWCMC.2011.5982775	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	An efficient implementation of PRACH generator in LTE UE transmitters	en_US
dc.type	Conference Proceeding
utslib.for	0805 Distributed Computing	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

An efficient hardware-optimized Physical Random Access Channel (PRACH) baseband signal generation algorithm and its ASIC implementation in the LTE user equipment (UE) transmitter are presented in this paper. A simplified DFT of the Zadoff-Chu (ZC) sequence as well as a phase computation are applied to the prime size DFT of the PRACH preamble and the large size IDFT is accomplished by groups of smaller size IFFTs. The optimized algorithm achieves significantly lower computational complexity compared with the original algorithm in the LTE specification and better performance compared to another publication. The ASIC architecture is also designed to reduce the memory size and logic complexity, which achieves a low hardware cost in terms of the cell area. The proposed design was implemented in 65nm CMOS and it was demonstrated that this design can satisfy the timing requirements of the LTE specification. © 2011 IEEE.

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