A method of optimizing the de-Rate Matching and demodulation in LTE based on GPP

Author

Zhao Guanghui ; Niu Kai ; He Lifeng ; Huang Jinri

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

8-10 Aug. 2012

Firstpage

828

Lastpage

832

Abstract

Recently, General Purpose Processor (GPP) has been applied to telecommunication field. The paper provides a method of optimizing the de-Rate Matching (RM) and demodulation for Long Term Evolution (LTE) system based on GPP. Multi kinds of code rates are supported in LTE. BPSK, QPSK, 16QAM and 64QAM are configurable for modulation. LTE system supports high peak rate with a low processing latency. So optimizing the demodulation and Rate Matching is necessary for the system implementation. A new scheme for Rate Matching is proposed, and the demodulation is optimized using Single Instruction Multi Data (SIMD).

Keywords

Long Term Evolution; demodulation; microprocessor chips; optimisation; parallel processing; quadrature amplitude modulation; quadrature phase shift keying; BPSK; GPP; LTE; Long Term Evolution; QAM; QPSK; RM; SIMD; demodulation; derate matching; general purpose processor; single instruction multidata; Antennas; Bandwidth; Demodulation; Optimization; Table lookup; Telecommunications; Demodulation; GPP; LTE; Rate Matching; optimize;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on

Conference_Location

Kun Ming

Print_ISBN

978-1-4673-2698-8

Electronic_ISBN

978-1-4673-2697-1

Type

conf

DOI

10.1109/ChinaCom.2012.6417599

Filename

6417599