System Architecture for 3GPP LTE Modem Using a Programmable Baseband Processor

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Provided by: Linkoping University
Topic: Hardware
Format: PDF
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) are met by adding a MIMO symbol detector and a parallel Turbo decoder supporting H-ARQ.
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