A.S_serving<THRESH_2G_low且S_non-serving_LTE>THRESH_LTE_low
B.S_servingT<HRESH_2G_low且S_non-serving_LTET<HRESH_LTE_low且S_non-serving_LTES>_serving+H_PRIO
C.S_serving>THRESH_2G_low且S_non-serving_LTE>THRESH_LTE_low
D.S_serving>THRESH_2G_low且S_non-serving_LTE<THRESH_LTE_low且S_non-serving_LTE>S_serving+H_PRIO