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System Architecture for 3GPP LTE Modem Using a Programmable Baseband Processo
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Engineering. Linköping University, The Institute of Technology.
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2009 (English)In: International Symposium on System-on-Chip (SoC 2009), 2009Conference paper, Published paper (Refereed)
Abstract [en]

3G evolution towards HSPA and LTE is ongoing which will substantially increase the throughput with higher spectral efficiency. This paper presents the system architecture of an LTE modem based on a programmable baseband processor. The architecture includes a baseband processor that handles processing such as time and frequency synchronization, IFFT/FFT (up to 2048-p), channel estimation and subcarrier demapping. The throughput and latency requirements of a Category 4 User Equipment (CAT4 UE) is met by adding a MIMO symbol detector and a parallel Turbo decoder supporting H-ARQ. This brings both low silicon cost and enough flexibility to support other wireless standards. The complexity demonstrated by the modem shows the practicality and advantage of using programmable baseband processors for a single-chip LTE solution.

Place, publisher, year, edition, pages
2009.
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-50793OAI: oai:DiVA.org:liu-50793DiVA: diva2:272222
Available from: 2009-10-14 Created: 2009-10-14 Last updated: 2009-10-17

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Di, WuEilert, JohanLiu, DakeNilsson, Anders

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