Fig. 1. Diagram of handover model

Fig. 2. Chart of handover

Fig. 3. Diagram of measurement filtering process

Fig. 4. Diagram of measurement period T_m and reporting period T_u

Fig. 5. Fitting effect of concave variation sequence

Fig. 6. Fitting effect of convex variation sequence

Fig. 7. Fitting effect of monotonic augmentation sequence

Fig. 8. Fitting effect of monotonic subtraction sequence

Fig. 9. Flowchart of improved algorithm

Fig. 10. RSRP of traditional A3 algorithm

Fig. 11. RSRP of improved algorithm

Fig. 12. Comparison of occurrence times of ping-pong switching of three algorithms

Fig. 13. Comparison of ping-pong switching trigger rates of various algorithms

Fig. 14. Comparison of switching success rates of three algorithms