A LTE Receiver Framework Using GNU Radio
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We present an open source LTE receiver framework. Using GNU Radio’s block-based signal processing capabilities, various LTE baseband specific functionality has been implemented in dedicated easily reconfigurable blocks. These can be used to decode and analyze arbitrary channels in the LTE downlink signal. As an example we decode the Master Information Block (MIB) transmitted on the Broadcast Channel (BCH) and the Physical Control Format Indicator Channel (PCFICH). Our work is focused on the software receiver design in GNU Radio and on performance measurements in order to identify critical processing operations on a General Purpose Processor (GPP). By optimizing critical components, e.g. channel estimation, synchronization, we can improve the overall performance and therefore the system’s real-time capabilities.
KeywordsLTE GNU radio Performance
- 1.3GPP (2011). LTE; Evolved Universal Terrestrial Radio Access (E-UTRA). Physical channels and modulation, 3rd Generation Partnership Project (3GPP), TS 36.211 v10.0.0.Google Scholar
- 2.Mitola, J. (1992). Software radios-survey, critical evaluation and future directions. National Telesystems Conference.Google Scholar
- 3.GNU Radio Website (2014). http://www.gnuradio.org. Accessed 10th October 2014.
- 4.Manolakis, K., Estévez, D.M.G., Jungnickel, V., Xu, W., Drewes, C. (2009). A closed concept for synchronization and cell search in 3gpp lte systems, In WCNC, (pp. 616–621).Google Scholar
- 6.3GPP (2011). LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding, 3rd Generation Partnership Project (3GPP), TS 36.212 v10.0.0.Google Scholar
- 7.Valgrind Website (2014). valgrind.org. Accessed 10 October 2014.
- 8.gr-lte Repository (2014). https://github.com/kit-cel/gr-lte. Accessed 10 October 2014.