Aiming at the characteristics of resource periodicity in massive MIMO systems and bandwidth allocation without comprehensive consideration of user service QoS and channel state information. resulting in poor user satisfaction and low bandwidth utilization. this paper proposes an adaptive bandwidth allocation method based on user services. This method comprehensively considers factors. https://www.getpureroutine.com/limited-deal-swisse-ultiboost-high-strength-magnesium-powder-berry-180g-supply-top-savings/