The design of Multi-TRP based URLLC transmission scheme in 5G

Abstract

Ultra-reliable and low latency communication(URLLC) is one of the three big scenarios in 5G, and is paid more and more attention now. Internet of vehicle is one of the application about URLLC, and it has high requirement about reliability of information transmission. In order to improve the reliability and robustness of transmission, several transmission schemes of Multi-TRP based URLLC is introduced from the perspective of SDM, FDM and TDM, and the merit and demerit of these schemes are compared with each other. In addition, a new method of indicating dynamic switching between these schemes is proposed, and the performance is evaluated. Based on the simulation results, significant performance gain can be obtained by the scheme of dynamic switching.

Keywords

• ultra-reliable and low latency communication(urllc)
• multi-trp
• transmit with repetition