Novel solution for multi-connectivity 5G-mmW positioning
Saloranta, Jani; Destino, Giuseppe; Tölli, Antti; Wymeersch, Henk (2019-02-21)
J. Saloranta, G. Destino, A. Tölli and H. Wymeersch, "Novel Solution for Multi-connectivity 5G-mmW Positioning," 2018 52nd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 2018, pp. 537-540. doi: 10.1109/ACSSC.2018.8645544
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https://urn.fi/URN:NBN:fi-fe2019081324067
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Abstract
The forthcoming fifth generation (5G) systems with high beamforming gain antenna units, millimeter-wave (mmWave) frequency bands together with massive Multiple Input Multiple Output (MIMO) techniques are key components for accurate positioning methods. In this paper, we propose the positioning technique that is relying on the sparsity in the MIMO-OFDM channel in time and spatial domains, together with effective beamforming methods. We will study the proposed solution in a multi-connectivity context, which has been considered so far for the purpose of improving the user equipment (UE) communication data rate. We utilize the multi-connectivity for positioning, in order to improve robustness to measurement errors and increase positioning service continuity. In particular, we show that when a UE that has connectivity to more base stations, the total power and delay needed for positioning can be reduced.
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