UnitConverter.java 文件源码

public static int convertGsmDbmToAsu(int dbm) {
    if (dbm == Measurement.UNKNOWN_SIGNAL || dbm == NeighboringCellInfo.UNKNOWN_RSSI)
        return Measurement.UNKNOWN_SIGNAL;
    if (dbm <= -113)
        return 0;
    int asu = (dbm + 113) / 2;
    if (asu > 31)
        return 31;
    return asu;
}