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Commit cb162534 authored by Yu-Han Yang's avatar Yu-Han Yang
Browse files

Make cN0Db and basebandCn0Db ranges consistent with HAL 

Bug: 136136192
Test: existing tests passing
Change-Id: I7ffc40f7f00e3d5e141d10025de6fe7886c61ba7
parent 06194d4d

api/current.txt

+2 −2
Original line number Diff line number Diff line
@@ -23199,12 +23199,12 @@ package android.location { 
    method public int getAccumulatedDeltaRangeState();

    method public double getAccumulatedDeltaRangeUncertaintyMeters();

    method public double getAutomaticGainControlLevelDb();

    method @FloatRange(from=0, to=50) public double getBasebandCn0DbHz();

    method @FloatRange(from=0, to=63) public double getBasebandCn0DbHz();

    method @Deprecated public long getCarrierCycles();

    method public float getCarrierFrequencyHz();

    method @Deprecated public double getCarrierPhase();

    method @Deprecated public double getCarrierPhaseUncertainty();

    method public double getCn0DbHz();

    method @FloatRange(from=0, to=63) public double getCn0DbHz();

    method @NonNull public String getCodeType();

    method public int getConstellationType();

    method public int getMultipathIndicator();

location/java/android/location/GnssMeasurement.java

+6 −3
Original line number Diff line number Diff line
@@ -778,10 +778,12 @@ public final class GnssMeasurement implements Parcelable { 
    /**

     * Gets the Carrier-to-noise density in dB-Hz.

     *

     * <p>Typical range: 10-50 db-Hz.

     * <p>Typical range: 10-50 dB-Hz. The range of possible C/N0 values is 0-63 dB-Hz to handle

     * some edge cases.

     *

     * <p>The value contains the measured C/N0 for the signal at the antenna input.

     */

    @FloatRange(from = 0, to = 63)

    public double getCn0DbHz() {

        return mCn0DbHz;

    }
@@ -805,13 +807,14 @@ public final class GnssMeasurement implements Parcelable { 
    /**

     * Gets the baseband carrier-to-noise density in dB-Hz.

     *

     * <p>Typical range: 0-50 dB-Hz.

     * <p>Typical range: 10-50 dB-Hz. The range of possible baseband C/N0 values is 0-63 dB-Hz to

     * handle some edge cases.

     *

     * <p>The value contains the measured C/N0 for the signal at the baseband. This is typically

     * a few dB weaker than the value estimated for C/N0 at the antenna port, which is reported

     * in {@link #getCn0DbHz()}.

     */

    @FloatRange(from = 0, to = 50)

    @FloatRange(from = 0, to = 63)

    public double getBasebandCn0DbHz() {

        return mBasebandCn0DbHz;

    }