Research on Collaborative Transmission Scheme of 5G NR Multicast Broadcasting and Terrestrial Broadcasting
5G broadcasting technology is divided into two evolution routes:one is the 4G long-term(LTE-based)evolution based terrestrial broadcasting technology established by 3GPP in the Rel-16 version,and the other is NR-based 5G-MBS established by 3GPP in the Rel-17 and Rel-18 versions.To provide broadcasting services to massive mobile handheld terminals with capabilities of wide-range and deep coverage,this paper proposes a collaborative 5G-MBS and terrestrial broadcasting scheme for handheld mobile reception,and evaluation criteria and optimization methods are given based on this scheme.The simulation results show that the collaborative broadcasting scheme is better than the single 5G-MBS scheme or terrestrial broadcasting scheme and can meet the deep coverage of a large range of handheld mobile terminals broadcasting services.