LTE-Advanced channel coding generic procedures A high-level model to guide low-level implementations

Abstract

This paper presents a high-level functional model for the 3GPP LTE-Advanced channel coding generic procedures. Due to the complexity of modern wireless communication systems, it is fundamental to have a well-defined high-level model to guide low-level implementations, like C/C++ or HDL. Highlevel modeling not only serves the purpose of proving the correctness of a given system, but also to present measures of its optimal performance, since we are not yet restricted by any technology. The LTE-Advanced channel coding is composed by five generic procedures: CRC calculation, code block segmentation and CRC attachment, channel coding, rate matching and code block concatenation. The aggregation of these procedures creates the great majority of the downlink and uplink transport channels. In this paper, we present a very simple way of modeling the channel coding, offering a reference for future LTE channel coding developments.