从CellSignalStrengthLte获取适用于Android应用程序API的RSRP 17+

更新：

TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);List<CellInfo> cellInfoList = tm.getAllCellInfo();for (CellInfo cellInfo : cellInfoList){    if (cellInfo instanceof CellInfoLte)    {        // cast to CellInfoLte and call all the CellInfoLte methods you need        ((CellInfoLte)cellInfo).getCellSignalStrength().getDbm();    }}