Demo: Soft-LTE: A Software Radio Implementation of 3GPP Long Term Evolution Based on Sora Platform (Best Demo Runner-up)

  • Yuxiang Li ,
  • Ji Fang ,
  • Kun Tan ,
  • Jiansong Zhang ,
  • Qimei Cui ,
  • Xiaofeng Tao

This demo shows an implementation of 3GPP LTE (Long Term Evolution) [2] Uplink, using Sora high performance software radio platform [5]. LTE is the state-of-the-art widearea wireless technology and employs many cutting-edge physical layer designs, including Turbo Coding, MIMO, SCFDMA and OFDMA [3, 4]. This demo shows a LTE Uplink implementation based on Release 8 3GPP 36 Series specifications in LTE-TDD (Time Division Duplex) system. Specifically, we implement the PUSCH (Physical Uplink Shared Channel) physical layer in single user environment, which provides a peak rate of 43.8Mbps with 20MHz channel band. The whole implementation contains around 5,000 lines of C code and runs in real-time in a commodity general purpose PC.