CellSignalStrengthGsm

public final class CellSignalStrengthGsm
extends CellSignalStrength implements Parcelable

java.lang.Object
   ↳ android.telephony.CellSignalStrength
     ↳ android.telephony.CellSignalStrengthGsm


GSM signal strength related information.

Summary

Inherited constants

Fields

public static final Creator<CellSignalStrengthGsm> CREATOR

Implement the Parcelable interface

Public methods

int describeContents()

Implement the Parcelable interface

boolean equals(Object o)

Indicates whether some other object is "equal to" this one.

int getAsuLevel()

Get the RSSI in ASU.

int getBitErrorRate()

Return the Bit Error Rate.

int getDbm()

Get the signal strength as dBm.

int getLevel()

Retrieve an abstract level value for the overall signal quality.

int getRssi()

Return the Received Signal Strength Indicator.

int getTimingAdvance()

Get the GSM timing advance between 0..219 symbols (normally 0..63).

int hashCode()

Returns a hash code value for the object.

String toString()

Returns a string representation of the object.

void writeToParcel(Parcel dest, int flags)

Implement the Parcelable interface

Inherited methods

Fields

CREATOR

Added in API level 17
public static final Creator<CellSignalStrengthGsm> CREATOR

Implement the Parcelable interface

Public methods

describeContents

Added in API level 17
public int describeContents ()

Implement the Parcelable interface

Returns
int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

equals

Added in API level 17
public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o Object: the reference object with which to compare.

Returns
boolean true if this object is the same as the obj argument; false otherwise.

getAsuLevel

Added in API level 17
public int getAsuLevel ()

Get the RSSI in ASU. Asu is calculated based on 3GPP RSSI. Refer to 3GPP 27.007 (Ver 10.3.0) Sec 8.69

Returns
int RSSI in ASU 0..31, 99, or UNAVAILABLE.

getBitErrorRate

Added in API level 29
public int getBitErrorRate ()

Return the Bit Error Rate.

Returns
int the bit error rate (0-7, 99) as defined in TS 27.007 8.5 or UNAVAILABLE.

getDbm

Added in API level 17
public int getDbm ()

Get the signal strength as dBm.

Returns
int the RSSI of the measured cell.

getLevel

Added in API level 17
public int getLevel ()

Retrieve an abstract level value for the overall signal quality.

Returns
int Value is between SIGNAL_STRENGTH_NONE_OR_UNKNOWN and SIGNAL_STRENGTH_GREAT inclusive

getRssi

Added in API level 30
public int getRssi ()

Return the Received Signal Strength Indicator.

Returns
int the RSSI in dBm (-113, -51) or UNAVAILABLE.

getTimingAdvance

Added in API level 26
public int getTimingAdvance ()

Get the GSM timing advance between 0..219 symbols (normally 0..63).

UNAVAILABLE is reported when there is no RR connection. Refer to 3GPP 45.010 Sec 5.8.

Returns
int the current GSM timing advance, if available.

hashCode

Added in API level 17
public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int a hash code value for this object.

toString

Added in API level 17
public String toString ()

Returns a string representation of the object.

Returns
String string representation.

writeToParcel

Added in API level 17
public void writeToParcel (Parcel dest, 
                int flags)

Implement the Parcelable interface

Parameters
dest Parcel: The Parcel in which the object should be written. This value cannot be null.

flags int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES