2

在过去的十年里，有几个人问过类似的问题，但没有一个人有任何答案。我需要编写一个收集和存储 RSRP、RSRQ、CINR 和 Cell ID 的 android 应用程序。答案需要与手机硬件允许的一样准确（我正在三星 Galaxy S5 上进行测试），因为我需要使用这些值进行后处理统计。

有谁知道如何使用 telephonyManager 或 CellSignalStrengthLte 来获取 RSRP？或者是否有另一种获得 RSRP 的更好方法？

到目前为止，我能做的最好的事情是使用 PhoneStateListener 和 TelephonyManager 来获取 RSSI 值，但 RSSI 对我的统计数据没有用：

    package com.pscr.jparks.signalstrength;

    import android.app.Activity;
    import android.os.Bundle;
    import android.telephony.PhoneStateListener;
    import android.telephony.TelephonyManager;
    import android.widget.TextView;
    /*
    TS 27.007 8.5
    Defined values
    <rssi>:
    0 -113 dBm or less
    1 -111 dBm
    2...30 -109... -53 dBm
    31 -51 dBm or greater
    99 not known or not detectable
    */

    public class SignalStrengthActivity  extends Activity {

        SignalStrengthListener signalStrengthListener;
        TextView signalStrengthTextView;


        @Override
        public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);

            //setup content stuff
            this.setContentView(R.layout.signal_strength);
            signalStrengthTextView = (TextView) findViewById(R.id.signalStrengthTextView);

            //start the signal strength listener
            signalStrengthListener = new SignalStrengthListener();
            ((TelephonyManager) getSystemService(TELEPHONY_SERVICE)).listen(signalStrengthListener, SignalStrengthListener.LISTEN_SIGNAL_STRENGTHS);
        }


        private class SignalStrengthListener extends PhoneStateListener {
            @Override
            public void onSignalStrengthsChanged(android.telephony.SignalStrength signalStrength) {

                // get the signal strength (a value between 0 and 31)
                int strengthAmplitude = signalStrength.getGsmSignalStrength();

                //do something with it (in this case we update a text view)
          signalStrengthTextView.setText(String.valueOf(strengthAmplitude));
          super.onSignalStrengthsChanged(signalStrength);
            }
        }
    }

如果有人解决了这个问题，或者找到了答案（我到处找过！），请告诉我！

4

3 回答 3

4

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();
    }
}
于 2015-09-11T20:11:13.853 回答
2

这是我的答案以及 Bruce Lan 的代码。这仍然是一项正在进行的工作，但它展示了如何收集各种 LTE 参数。您可以从我的 GitHub 帐户获取整个 Android Studio 项目：https ://github.com/parksjg/SignalStrength

package com.pscr.jparks.signalstrength;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.telephony.CellInfo;
import android.telephony.CellInfoLte;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.TextView;

import java.util.List;
/*
TS 27.007 8.5
Defined values
<rsrp>:
0 -113 dBm or less
1 -111 dBm
2...30 -109... -53 dBm
31 -51 dBm or greater
99 not known or not detectable
*/



/*
The parts[] array will then contain these elements:

part[0] = "Signalstrength:"  _ignore this, it's just the title_
parts[1] = GsmSignalStrength
parts[2] = GsmBitErrorRate
parts[3] = CdmaDbm
parts[4] = CdmaEcio
parts[5] = EvdoDbm
parts[6] = EvdoEcio
parts[7] = EvdoSnr
parts[8] = LteSignalStrength
parts[9] = LteRsrp
parts[10] = LteRsrq
parts[11] = LteRssnr
parts[12] = LteCqi
parts[13] = gsm|lte
parts[14] = _not reall sure what this number is_
*/

public class SignalStrengthActivity  extends Activity {

    // How do I release the Listener when app closes???????
    SignalStrengthListener signalStrengthListener;

    TextView signalStrengthTextView, signalStrengthTextView2;
    TextView cellIDTextView;
    TextView cellMccTextView;
    TextView cellMncTextView;
    TextView cellPciTextView;
    TextView cellTacTextView;

    List<CellInfo> cellInfoList;
    int cellSig, cellID, cellMcc, cellMnc, cellPci, cellTac = 0;

    TelephonyManager tm;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        //setup content stuff
        this.setContentView(R.layout.signal_strength);

        signalStrengthTextView = (TextView) findViewById(R.id.signalStrengthTextView);
        signalStrengthTextView2 = (TextView) findViewById(R.id.signalStrengthTextView2);
        cellIDTextView = (TextView) findViewById(R.id.cellIDTextView);
        cellMccTextView = (TextView) findViewById(R.id.cellMccTextView);
        cellMncTextView = (TextView) findViewById(R.id.cellMncTextView);
        cellPciTextView = (TextView) findViewById(R.id.cellPciTextView);
        cellTacTextView = (TextView) findViewById(R.id.cellTacTextView);


        //start the signal strength listener
        signalStrengthListener = new SignalStrengthListener();

        ((TelephonyManager) getSystemService(TELEPHONY_SERVICE)).listen(signalStrengthListener, SignalStrengthListener.LISTEN_SIGNAL_STRENGTHS);
        tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        try {
            cellInfoList = tm.getAllCellInfo();
        } catch (Exception e) {
            Log.d("SignalStrength", "+++++++++++++++++++++++++++++++++++++++++ null array spot 1: " + e);

        }


        try {
            for (CellInfo cellInfo : cellInfoList) {
                if (cellInfo instanceof CellInfoLte) {
                    // cast to CellInfoLte and call all the CellInfoLte methods you need
                    // gets RSRP cell signal strength:
                    cellSig = ((CellInfoLte) cellInfo).getCellSignalStrength().getDbm();

                    // Gets the LTE cell indentity: (returns 28-bit Cell Identity, Integer.MAX_VALUE if unknown)
                    cellID = ((CellInfoLte) cellInfo).getCellIdentity().getCi();

                    // Gets the LTE MCC: (returns 3-digit Mobile Country Code, 0..999, Integer.MAX_VALUE if unknown)
                    cellMcc = ((CellInfoLte) cellInfo).getCellIdentity().getMcc();

                    // Gets theLTE MNC: (returns 2 or 3-digit Mobile Network Code, 0..999, Integer.MAX_VALUE if unknown)
                    cellMnc = ((CellInfoLte) cellInfo).getCellIdentity().getMnc();

                    // Gets the LTE PCI: (returns Physical Cell Id 0..503, Integer.MAX_VALUE if unknown)
                    cellPci = ((CellInfoLte) cellInfo).getCellIdentity().getPci();

                    // Gets the LTE TAC: (returns 16-bit Tracking Area Code, Integer.MAX_VALUE if unknown)
                    cellTac = ((CellInfoLte) cellInfo).getCellIdentity().getTac();

                }

            }
        } catch (Exception e) {
            Log.d("SignalStrength", "++++++++++++++++++++++ null array spot 2: " + e);
        }

    }



    @Override
    public void onPause() {
        super.onPause();

        try{
            if(signalStrengthListener != null){tm.listen(signalStrengthListener, SignalStrengthListener.LISTEN_NONE);}
        }catch(Exception e){
            e.printStackTrace();
        }
    }


    public void onDestroy() {
        super.onDestroy();

        try{
            if(signalStrengthListener != null){tm.listen(signalStrengthListener, SignalStrengthListener.LISTEN_NONE);}
        }catch(Exception e){
            e.printStackTrace();
        }
    }




    private class SignalStrengthListener extends PhoneStateListener {
        @Override
        public void onSignalStrengthsChanged(android.telephony.SignalStrength signalStrength) {

            //++++++++++++++++++++++++++++++++++

            ((TelephonyManager) getSystemService(TELEPHONY_SERVICE)).listen(signalStrengthListener, SignalStrengthListener.LISTEN_SIGNAL_STRENGTHS);

            tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

            String ltestr = signalStrength.toString();
            String[] parts = ltestr.split(" ");
            String cellSig2 = parts[9];

            try {
                cellInfoList = tm.getAllCellInfo();
                for (CellInfo cellInfo : cellInfoList) {
                    if (cellInfo instanceof CellInfoLte) {
                        // cast to CellInfoLte and call all the CellInfoLte methods you need
                        // gets RSRP cell signal strength:
                        cellSig = ((CellInfoLte) cellInfo).getCellSignalStrength().getDbm();

                        // Gets the LTE cell identity: (returns 28-bit Cell Identity, Integer.MAX_VALUE if unknown)
                        cellID = ((CellInfoLte) cellInfo).getCellIdentity().getCi();

                        // Gets the LTE MCC: (returns 3-digit Mobile Country Code, 0..999, Integer.MAX_VALUE if unknown)
                        cellMcc = ((CellInfoLte) cellInfo).getCellIdentity().getMcc();

                        // Gets theLTE MNC: (returns 2 or 3-digit Mobile Network Code, 0..999, Integer.MAX_VALUE if unknown)
                        cellMnc = ((CellInfoLte) cellInfo).getCellIdentity().getMnc();

                        // Gets the LTE PCI: (returns Physical Cell Id 0..503, Integer.MAX_VALUE if unknown)
                        cellPci = ((CellInfoLte) cellInfo).getCellIdentity().getPci();

                        // Gets the LTE TAC: (returns 16-bit Tracking Area Code, Integer.MAX_VALUE if unknown)
                        cellTac = ((CellInfoLte) cellInfo).getCellIdentity().getTac();

                    }
                }
            } catch (Exception e) {
                Log.d("SignalStrength", "+++++++++++++++++++++++++++++++ null array spot 3: " + e);
            }

            signalStrengthTextView.setText(String.valueOf(cellSig));
            signalStrengthTextView2.setText(String.valueOf(cellSig2));
            cellIDTextView.setText(String.valueOf(cellID));
            cellMccTextView.setText(String.valueOf(cellMcc));
            cellMncTextView.setText(String.valueOf(cellMnc));
            cellPciTextView.setText(String.valueOf(cellPci));
            cellTacTextView.setText(String.valueOf(cellTac));

            super.onSignalStrengthsChanged(signalStrength);

            //++++++++++++++++++++++++++++++++++++

        }
    }

}

感谢 Bruce Lan 和这个网站（https://sites.google.com/site/androiddevelopmentproject/home/rf-signal-tracker/a-very-basic-how-to）帮助我！

于 2015-10-13T19:21:29.197 回答
0

一开始遇到过Cell Info为null、不允许访问Cell Info等情况。最后我找到了一种从 LTE 获取参数的方法。这段代码可以让我获取如下参数：rsrp、rsrq 和 sinr。我希望它也对你有用。

List<CellSignalStrength> cellInfoList;
TelephonyManager tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
cellInfoList = tm.getSignalStrength().getCellSignalStrengths();
    for (CellSignalStrength cellInfo : cellInfoList) {
        if (cellInfo instanceof CellSignalStrengthLte) {
            rsrp = ((CellSignalStrengthLte) cellInfo).getRsrp();
            rsrq = ((CellSignalStrengthLte) cellInfo).getRsrq();
            snr = ((CellSignalStrengthLte) cellInfo).getRssnr();

        }
    }
    rsrpValue.setText(String.valueOf(rsrp));
    rsrqValue.setText(String.valueOf(rsrq));
    sinr.setText(String.valueOf(snr));

我的清单权限：

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
于 2020-07-01T15:23:36.273 回答