/frameworks/base/telephony/java/android/telephony/TelephonyManager.java

/frameworks/base/telephony/java/android/telephony/PhysicalChannelConfig.java

LTE下radio log搜RIL_UNSOL_PHYSICAL_CHANNEL_CONFIG，查看是否有以下字符串mConnectionStatus=SecondaryServing,mRat=20,有的话就是NSA

02-26 22:29:31.963  2279  2342 D RILJ    : [UNSL]< RIL_UNSOL_PHYSICAL_CHANNEL_CONFIG [{mConnectionStatus=PrimaryServing,mCellBandwidthDownlinkKhz=20000,mRat=13,mFrequencyRange=2,mChannelNumber=2147483647,mContextIds=[I@beea299,mPhysicalCellId=382}, {mConnectionStatus=SecondaryServing,mCellBandwidthDownlinkKhz=0,mRat=20,mFrequencyRange=3,mChannelNumber=2147483647,mContextIds=[I@57c095e,mPhysicalCellId=0}] [SUB0]

  /*
     * When adding a network type to the list below, make sure to add the correct icon to
     * MobileSignalController.mapIconSets().
     * Do not add negative types.
     */
    /** Network type is unknown */
    public static final int NETWORK_TYPE_UNKNOWN = TelephonyProtoEnums.NETWORK_TYPE_UNKNOWN; // = 0.
    /** Current network is GPRS */
    public static final int NETWORK_TYPE_GPRS = TelephonyProtoEnums.NETWORK_TYPE_GPRS; // = 1.
    /** Current network is EDGE */
    public static final int NETWORK_TYPE_EDGE = TelephonyProtoEnums.NETWORK_TYPE_EDGE; // = 2.
    /** Current network is UMTS */
    public static final int NETWORK_TYPE_UMTS = TelephonyProtoEnums.NETWORK_TYPE_UMTS; // = 3.
    /** Current network is CDMA: Either IS95A or IS95B*/
    public static final int NETWORK_TYPE_CDMA = TelephonyProtoEnums.NETWORK_TYPE_CDMA; // = 4.
    /** Current network is EVDO revision 0*/
    public static final int NETWORK_TYPE_EVDO_0 = TelephonyProtoEnums.NETWORK_TYPE_EVDO_0; // = 5.
    /** Current network is EVDO revision A*/
    public static final int NETWORK_TYPE_EVDO_A = TelephonyProtoEnums.NETWORK_TYPE_EVDO_A; // = 6.
    /** Current network is 1xRTT*/
    public static final int NETWORK_TYPE_1xRTT = TelephonyProtoEnums.NETWORK_TYPE_1XRTT; // = 7.
    /** Current network is HSDPA */
    public static final int NETWORK_TYPE_HSDPA = TelephonyProtoEnums.NETWORK_TYPE_HSDPA; // = 8.
    /** Current network is HSUPA */
    public static final int NETWORK_TYPE_HSUPA = TelephonyProtoEnums.NETWORK_TYPE_HSUPA; // = 9.
    /** Current network is HSPA */
    public static final int NETWORK_TYPE_HSPA = TelephonyProtoEnums.NETWORK_TYPE_HSPA; // = 10.
    /** Current network is iDen */
    public static final int NETWORK_TYPE_IDEN = TelephonyProtoEnums.NETWORK_TYPE_IDEN; // = 11.
    /** Current network is EVDO revision B*/
    public static final int NETWORK_TYPE_EVDO_B = TelephonyProtoEnums.NETWORK_TYPE_EVDO_B; // = 12.
    /** Current network is LTE */
    public static final int NETWORK_TYPE_LTE = TelephonyProtoEnums.NETWORK_TYPE_LTE; // = 13.
    /** Current network is eHRPD */
    public static final int NETWORK_TYPE_EHRPD = TelephonyProtoEnums.NETWORK_TYPE_EHRPD; // = 14.
    /** Current network is HSPA+ */
    public static final int NETWORK_TYPE_HSPAP = TelephonyProtoEnums.NETWORK_TYPE_HSPAP; // = 15.
    /** Current network is GSM */
    public static final int NETWORK_TYPE_GSM = TelephonyProtoEnums.NETWORK_TYPE_GSM; // = 16.
    /** Current network is TD_SCDMA */
    public static final int NETWORK_TYPE_TD_SCDMA =
            TelephonyProtoEnums.NETWORK_TYPE_TD_SCDMA; // = 17.
    /** Current network is IWLAN */
    public static final int NETWORK_TYPE_IWLAN = TelephonyProtoEnums.NETWORK_TYPE_IWLAN; // = 18.
    /** Current network is LTE_CA {
  @hide} */
    @UnsupportedAppUsage
    public static final int NETWORK_TYPE_LTE_CA = TelephonyProtoEnums.NETWORK_TYPE_LTE_CA; // = 19.
    /** Current network is NR(New Radio) 5G. */
    public static final int NETWORK_TYPE_NR = TelephonyProtoEnums.NETWORK_TYPE_NR; // 20.

     * @param subId for which network type is returned
     *
     * @see #NETWORK_TYPE_UNKNOWN
     * @see #NETWORK_TYPE_GPRS
     * @see #NETWORK_TYPE_EDGE
     * @see #NETWORK_TYPE_UMTS
     * @see #NETWORK_TYPE_HSDPA
     * @see #NETWORK_TYPE_HSUPA
     * @see #NETWORK_TYPE_HSPA
     * @see #NETWORK_TYPE_CDMA
     * @see #NETWORK_TYPE_EVDO_0
     * @see #NETWORK_TYPE_EVDO_A
     * @see #NETWORK_TYPE_EVDO_B
     * @see #NETWORK_TYPE_1xRTT
     * @see #NETWORK_TYPE_IDEN
     * @see #NETWORK_TYPE_LTE
     * @see #NETWORK_TYPE_EHRPD
     * @see #NETWORK_TYPE_HSPAP
     * @see #NETWORK_TYPE_NR

    public static int getNetworkClass(int networkType) {
        switch (networkType) {
            case NETWORK_TYPE_GPRS:
            case NETWORK_TYPE_GSM:
            case NETWORK_TYPE_EDGE:
            case NETWORK_TYPE_CDMA:
            case NETWORK_TYPE_1xRTT:
            case NETWORK_TYPE_IDEN:
                return NETWORK_CLASS_2_G;
            case NETWORK_TYPE_UMTS:
            case NETWORK_TYPE_EVDO_0:
            case NETWORK_TYPE_EVDO_A:
            case NETWORK_TYPE_HSDPA:
            case NETWORK_TYPE_HSUPA:
            case NETWORK_TYPE_HSPA:
            case NETWORK_TYPE_EVDO_B:
            case NETWORK_TYPE_EHRPD:
            case NETWORK_TYPE_HSPAP:
            case NETWORK_TYPE_TD_SCDMA:
                return NETWORK_CLASS_3_G;
            case NETWORK_TYPE_LTE:
            case NETWORK_TYPE_IWLAN:
            case NETWORK_TYPE_LTE_CA:
                return NETWORK_CLASS_4_G;
            case NETWORK_TYPE_NR:
                return NETWORK_CLASS_5_G;
            default:
                return NETWORK_CLASS_UNKNOWN;
        }
    }