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Commit a483ce3b authored by Eric Schwarzenbach's avatar Eric Schwarzenbach
Browse files

Add Duplex mode to ServiceState. 

Adds getChannelNumber() to CellIdentity.
Creates a static utility class to calculate the duplex mode from an
EARFCN.

Bug: 73728783
Test: runtest frameworks-telephony
Change-Id: I5b5c4efa7e17594ce9397cf65e129147affe96bd
parent c2925aff

telephony/java/android/telephony/AccessNetworkUtils.java

0 → 100644
+167 −0
Original line number Diff line number Diff line 
package android.telephony;



import static android.telephony.ServiceState.DUPLEX_MODE_FDD;

import static android.telephony.ServiceState.DUPLEX_MODE_TDD;

import static android.telephony.ServiceState.DUPLEX_MODE_UNKNOWN;



import android.telephony.AccessNetworkConstants.EutranBand;

import android.telephony.ServiceState.DuplexMode;





/**

 * Utilities to map between radio constants.

 *

 * @hide

 */

public class AccessNetworkUtils {



    // do not instantiate

    private AccessNetworkUtils() {}



    public static final int INVALID_BAND = -1;



    /**

     * Gets the duplex mode for the given EUTRAN operating band.

     *

     * <p>See 3GPP 36.101 sec 5.5-1 for calculation

     *

     * @param band The EUTRAN band number

     * @return The duplex mode of the given EUTRAN band

     */

    @DuplexMode

    public static int getDuplexModeForEutranBand(int band) {

        if (band == INVALID_BAND) {

            return DUPLEX_MODE_UNKNOWN;

        }



        if (band >= EutranBand.BAND_68) {

            return DUPLEX_MODE_UNKNOWN;

        } else if (band >= EutranBand.BAND_65) {

            return DUPLEX_MODE_FDD;

        } else if (band >= EutranBand.BAND_47) {

            return DUPLEX_MODE_UNKNOWN;

        } else if (band >= EutranBand.BAND_33) {

            return DUPLEX_MODE_TDD;

        } else if (band >= EutranBand.BAND_1) {

            return DUPLEX_MODE_FDD;

        }



        return DUPLEX_MODE_UNKNOWN;

    }



    /**

     * Gets the EUTRAN Operating band for a given downlink EARFCN.

     *

     * <p>See 3GPP 36.101 sec 5.7.3-1 for calculation.

     *

     * @param earfcn The downlink EARFCN

     * @return Operating band number, or {@link #INVALID_BAND} if no corresponding band exists

     */

    public static int getOperatingBandForEarfcn(int earfcn) {

        if (earfcn > 67535) {

            return INVALID_BAND;

        } else if (earfcn >= 67366) {

            return INVALID_BAND; // band 67 only for CarrierAgg

        } else if (earfcn >= 66436) {

            return EutranBand.BAND_66;

        } else if (earfcn >= 65536) {

            return EutranBand.BAND_65;

        } else if (earfcn > 54339) {

            return INVALID_BAND;

        } else if (earfcn >= 46790 /* inferred from the end range of BAND_45 */) {

            return EutranBand.BAND_46;

        } else if (earfcn >= 46590) {

            return EutranBand.BAND_45;

        } else if (earfcn >= 45590) {

            return EutranBand.BAND_44;

        } else if (earfcn >= 43590) {

            return EutranBand.BAND_43;

        } else if (earfcn >= 41590) {

            return EutranBand.BAND_42;

        } else if (earfcn >= 39650) {

            return EutranBand.BAND_41;

        } else if (earfcn >= 38650) {

            return EutranBand.BAND_40;

        } else if (earfcn >= 38250) {

            return EutranBand.BAND_39;

        } else if (earfcn >= 37750) {

            return EutranBand.BAND_38;

        } else if (earfcn >= 37550) {

            return EutranBand.BAND_37;

        } else if (earfcn >= 36950) {

            return EutranBand.BAND_36;

        } else if (earfcn >= 36350) {

            return EutranBand.BAND_35;

        } else if (earfcn >= 36200) {

            return EutranBand.BAND_34;

        } else if (earfcn >= 36000) {

            return EutranBand.BAND_33;

        } else if (earfcn > 10359) {

            return INVALID_BAND;

        } else if (earfcn >= 9920) {

            return INVALID_BAND; // band 32 only for CarrierAgg

        } else if (earfcn >= 9870) {

            return EutranBand.BAND_31;

        } else if (earfcn >= 9770) {

            return EutranBand.BAND_30;

        } else if (earfcn >= 9660) {

            return INVALID_BAND; // band 29 only for CarrierAgg

        } else if (earfcn >= 9210) {

            return EutranBand.BAND_28;

        } else if (earfcn >= 9040) {

            return EutranBand.BAND_27;

        } else if (earfcn >= 8690) {

            return EutranBand.BAND_26;

        } else if (earfcn >= 8040) {

            return EutranBand.BAND_25;

        } else if (earfcn >= 7700) {

            return EutranBand.BAND_24;

        } else if (earfcn >= 7500) {

            return EutranBand.BAND_23;

        } else if (earfcn >= 6600) {

            return EutranBand.BAND_22;

        } else if (earfcn >= 6450) {

            return EutranBand.BAND_21;

        } else if (earfcn >= 6150) {

            return EutranBand.BAND_20;

        } else if (earfcn >= 6000) {

            return EutranBand.BAND_19;

        } else if (earfcn >= 5850) {

            return EutranBand.BAND_18;

        } else if (earfcn >= 5730) {

            return EutranBand.BAND_17;

        } else if (earfcn > 5379) {

            return INVALID_BAND;

        } else if (earfcn >= 5280) {

            return EutranBand.BAND_14;

        } else if (earfcn >= 5180) {

            return EutranBand.BAND_13;

        } else if (earfcn >= 5010) {

            return EutranBand.BAND_12;

        } else if (earfcn >= 4750) {

            return EutranBand.BAND_11;

        } else if (earfcn >= 4150) {

            return EutranBand.BAND_10;

        } else if (earfcn >= 3800) {

            return EutranBand.BAND_9;

        } else if (earfcn >= 3450) {

            return EutranBand.BAND_8;

        } else if (earfcn >= 2750) {

            return EutranBand.BAND_7;

        } else if (earfcn >= 2650) {

            return EutranBand.BAND_6;

        } else if (earfcn >= 2400) {

            return EutranBand.BAND_5;

        } else if (earfcn >= 1950) {

            return EutranBand.BAND_4;

        } else if (earfcn >= 1200) {

            return EutranBand.BAND_3;

        } else if (earfcn >= 600) {

            return EutranBand.BAND_2;

        } else if (earfcn >= 0) {

            return EutranBand.BAND_1;

        }



        return INVALID_BAND;

    }

}

telephony/java/android/telephony/CellIdentity.java

+13 −0
Original line number Diff line number Diff line
@@ -68,6 +68,9 @@ public abstract class CellIdentity implements Parcelable { 
     */

    public static final int TYPE_TDSCDMA        = 5;



    /** @hide */

    public static final int INVALID_CHANNEL_NUMBER = -1;



    // Log tag

    /** @hide */

    protected final String mTag;
@@ -124,6 +127,16 @@ public abstract class CellIdentity implements Parcelable { 
     */

    public @Type int getType() { return mType; }



    /**

     * Returns the channel number of the cell identity.

     *

     * @hide

     * @return The channel number, or {@link #INVALID_CHANNEL_NUMBER} if not implemented

     */

    public int getChannelNumber() {

        return INVALID_CHANNEL_NUMBER;

    }



    /**

     * Used by child classes for parceling.

     *

telephony/java/android/telephony/CellIdentityGsm.java

+5 −0
Original line number Diff line number Diff line
@@ -203,6 +203,11 @@ public final class CellIdentityGsm extends CellIdentity { 
        return mAlphaShort;

    }



    /** @hide */

    @Override

    public int getChannelNumber() {

        return mArfcn;

    }



    /**

     * @deprecated Primary Scrambling Code is not applicable to GSM.

telephony/java/android/telephony/CellIdentityLte.java

+6 −0
Original line number Diff line number Diff line
@@ -213,6 +213,12 @@ public final class CellIdentityLte extends CellIdentity { 
        return mAlphaShort;

    }



    /** @hide */

    @Override

    public int getChannelNumber() {

        return mEarfcn;

    }



    @Override

    public int hashCode() {

        return Objects.hash(mMccStr, mMncStr, mCi, mPci, mTac, mAlphaLong, mAlphaShort);

telephony/java/android/telephony/CellIdentityWcdma.java

+6 −0
Original line number Diff line number Diff line
@@ -206,6 +206,12 @@ public final class CellIdentityWcdma extends CellIdentity { 
        return mUarfcn;

    }



    /** @hide */

    @Override

    public int getChannelNumber() {

        return mUarfcn;

    }



    @Override

    public boolean equals(Object other) {

        if (this == other) {