Mobility Management Based on Beam-Level Measurement Report in 5G Massive MIMO Cellular Networks

• DOI: 10.3390/electronics9050865
• Publication Date: 2020-05-25T10:43:40Z
• Authors: Younghoon Jo; Jaechan Lim; Daehyoung Hong
• Keywords: Mobility management; Mobility model

Massive multiple-input-multiple-output (MMIMO) in the mmWave band is an essential technique to achieve desired performance for 5G new radio (NR) systems. To employ MMIMO technology, important challenge maintaining seamless mobility users because we need consider beam-switching within a cell besides handover between cells. For management NR systems, 3GPP specified beam-level-mobility scheme that includes beam pairing and maintenance transmitter (Tx) receiver (Rx) pair. We propose unific-measurement report based improved radio-link-failure (RLF) rate accuracy of Tx-Rx-beam-pair (TRP) selection with low overhead networks where both are required. Furthermore, modeled finite-state-machine (FSM) user terminal evaluate gain on system-level-simulation (SLS). use FSM-based Monte-Carlo SLS experiment compare proposed existing schemes scenario cell-level-mobility necessary. show achieves improvement terms 3-dB loss probabilities representing TRP selection, signal-to-interference-and-noise-ratio (SINR), RLF rates lower signaling compared methods.