CellSignalStrengthLte

public final class CellSignalStrengthLte
extends CellSignalStrength implements Parcelable

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


LTE signal strength related information.

Summary

Inherited constants

Fields

public static final Creator<CellSignalStrengthLte> 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 RSRP in ASU.

int getCqi()

Get channel quality indicator Reference: 3GPP TS 136.213 section 7.2.3.

int getCqiTableIndex()

Get table index for channel quality indicator Reference: 3GPP TS 136.213 section 7.2.3.

int getDbm()

Get signal strength in dBm

int getLevel()

Retrieve an abstract level value for the overall signal quality.

int getRsrp()

Get reference signal received power in dBm Range: -140 dBm to -43 dBm.

int getRsrq()

Get reference signal received quality

int getRssi()

Get Received Signal Strength Indication (RSSI) in dBm The value range is [-113, -51] inclusively or CellInfo#UNAVAILABLE if unavailable.

int getRssnr()

Get reference signal signal-to-noise ratio in dB Range: -20 dB to +30 dB.

int getTimingAdvance()

Get the timing advance value for LTE, as a value in range of 0..1282.

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<CellSignalStrengthLte> 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 RSRP in ASU. Asu is calculated based on 3GPP RSRP. Refer to 3GPP 27.007 (Ver 10.3.0) Sec 8.69

Returns
int RSCP in ASU 0..97, 255, or UNAVAILABLE

getCqi

Added in API level 26
public int getCqi ()

Get channel quality indicator Reference: 3GPP TS 136.213 section 7.2.3.

Returns
int the CQI if available or UNAVAILABLE if unavailable. Value is between 0 and 15 inclusive

getCqiTableIndex

Added in API level 31
public int getCqiTableIndex ()

Get table index for channel quality indicator Reference: 3GPP TS 136.213 section 7.2.3.

Returns
int the CQI table index if available or UNAVAILABLE if unavailable. Value is between 1 and 6 inclusive

getDbm

Added in API level 17
public int getDbm ()

Get signal strength in dBm

Returns
int the RSRP 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

getRsrp

Added in API level 26
public int getRsrp ()

Get reference signal received power in dBm Range: -140 dBm to -43 dBm.

Returns
int the RSRP of the measured cell or CellInfo#UNAVAILABLE if unavailable.

getRsrq

Added in API level 26
public int getRsrq ()

Get reference signal received quality

Returns
int the RSRQ if available or UNAVAILABLE if unavailable.

getRssi

Added in API level 29
public int getRssi ()

Get Received Signal Strength Indication (RSSI) in dBm The value range is [-113, -51] inclusively or CellInfo#UNAVAILABLE if unavailable. Reference: TS 27.007 8.5 Signal quality +CSQ

Returns
int the RSSI if available or CellInfo#UNAVAILABLE if unavailable.

getRssnr

Added in API level 26
public int getRssnr ()

Get reference signal signal-to-noise ratio in dB Range: -20 dB to +30 dB.

Returns
int the RSSNR if available or CellInfo.UNAVAILABLE if unavailable.

getTimingAdvance

Added in API level 17
public int getTimingAdvance ()

Get the timing advance value for LTE, as a value in range of 0..1282. UNAVAILABLE is reported when there is no active RRC connection. Refer to 3GPP 36.213 Sec 4.2.3

Returns
int the LTE timing advance if available or UNAVAILABLE if unavailable.

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