Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Inherited Constants](https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#inhconstants) \| [Fields](https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#lfields) \| [Methods](https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#inhmethods)

# CellSignalStrengthGsm

*** ** * ** ***

` public final class CellSignalStrengthGsm `   
` ` ` extends https://developer.android.com/reference/android/telephony/CellSignalStrength ` ` implements https://developer.android.com/reference/android/os/Parcelable `

|---|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) |||
| ↳ | [android.telephony.CellSignalStrength](https://developer.android.com/reference/android/telephony/CellSignalStrength) ||
|   | ↳ | android.telephony.CellSignalStrengthGsm |

<br />

*** ** * ** ***

GSM signal strength related information.

## Summary

### Inherited constants

From class `https://developer.android.com/reference/android/telephony/CellSignalStrength` `int` `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_GOOD`

<br />

`int` `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_GREAT`

<br />

`int` `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_MODERATE`

<br />

`int` `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_NONE_OR_UNKNOWN`

<br />

`int` `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_POOR`

<br />

From interface `https://developer.android.com/reference/android/os/Parcelable` `int` `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR`

Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`

Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

| ### Fields ||
|---|---|
| ` public static final https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm>` | `https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#CREATOR` Implement the Parcelable interface |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#describeContents()() ` Implement the Parcelable interface |
| ` boolean` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object o) ` Indicates whether some other object is "equal to" this one. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getAsuLevel()() ` Get the RSSI in ASU. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getBitErrorRate()() ` Return the Bit Error Rate. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getDbm()() ` Get the signal strength as dBm. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getLevel()() ` Retrieve an abstract level value for the overall signal quality. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getRssi()() ` Return the Received Signal Strength Indicator. |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#getTimingAdvance()() ` Get the GSM timing advance between 0..219 symbols (normally 0..63). |
| ` int` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#hashCode()() ` Returns a hash code value for the object. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/telephony/CellSignalStrengthGsm#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Implement the Parcelable interface |

### Inherited methods

From class ` https://developer.android.com/reference/android/telephony/CellSignalStrength ` ` abstract boolean` ` https://developer.android.com/reference/android/telephony/CellSignalStrength#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object o) `

Indicates whether some other object is "equal to" this one.
` abstract int` ` https://developer.android.com/reference/android/telephony/CellSignalStrength#getAsuLevel()() `

Get the technology-specific signal strength in Arbitrary Strength Units, calculated from the strength of the pilot signal or equivalent.
` abstract int` ` https://developer.android.com/reference/android/telephony/CellSignalStrength#getDbm()() `

Get the technology-specific signal strength in dBm, which is the signal strength of the pilot signal or equivalent.
` abstract int` ` https://developer.android.com/reference/android/telephony/CellSignalStrength#getLevel()() `

Retrieve an abstract level value for the overall signal quality.
` abstract int` ` https://developer.android.com/reference/android/telephony/CellSignalStrength#hashCode()() `

Returns a hash code value for the object.
From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` https://developer.android.com/reference/java/lang/Object#finalize()() `

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
` final https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait()() `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.
From interface ` https://developer.android.com/reference/android/os/Parcelable ` ` abstract int` ` https://developer.android.com/reference/android/os/Parcelable#describeContents()() `

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
` abstract void` ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) `

Flatten this object in to a Parcel.

## Fields

### CREATOR

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final Creator<CellSignalStrengthGsm> CREATOR
```

Implement the Parcelable interface

<br />

## Public methods

### describeContents

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int describeContents ()
```

Implement the Parcelable interface

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### equals

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
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.

<br />

| Parameters ||
|---|---|
| `o` | `Object`: the reference object with which to compare. <br /> |

| Returns ||
|---|---|
| `boolean` | `true` if this object is the same as the obj argument; `false` otherwise. <br /> |

### getAsuLevel

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
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

<br />

| Returns ||
|---|---|
| `int` | RSSI in ASU 0..31, 99, or `https://developer.android.com/reference/android/telephony/CellInfo#UNAVAILABLE`. <br /> |

### getBitErrorRate

Added in [API level 29](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getBitErrorRate ()
```

Return the Bit Error Rate.

<br />

| Returns ||
|---|---|
| `int` | the bit error rate (0-7, 99) as defined in TS 27.007 8.5 or `https://developer.android.com/reference/android/telephony/CellInfo#UNAVAILABLE`. <br /> |

### getDbm

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getDbm ()
```

Get the signal strength as dBm.

<br />

| Returns ||
|---|---|
| `int` | the RSSI of the measured cell. <br /> |

### getLevel

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getLevel ()
```

Retrieve an abstract level value for the overall signal quality.

<br />

| Returns ||
|---|---|
| `int` | Value is between `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_NONE_OR_UNKNOWN` and `https://developer.android.com/reference/android/telephony/CellSignalStrength#SIGNAL_STRENGTH_GREAT` inclusive <br /> |

### getRssi

Added in [API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getRssi ()
```

Return the Received Signal Strength Indicator.

<br />

| Returns ||
|---|---|
| `int` | the RSSI in dBm (-113, -51) or `https://developer.android.com/reference/android/telephony/CellInfo#UNAVAILABLE`. <br /> |

### getTimingAdvance

Added in [API level 26](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getTimingAdvance ()
```

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

`https://developer.android.com/reference/android/telephony/CellInfo#UNAVAILABLE` is reported when there is no RR connection. Refer to 3GPP 45.010 Sec 5.8.

<br />

| Returns ||
|---|---|
| `int` | the current GSM timing advance, if available. <br /> |

### hashCode

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
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 `https://developer.android.com/reference/java/util/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 `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` 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 `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` 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.

<br />

<br />

| Returns ||
|---|---|
| `int` | a hash code value for this object. <br /> |

### toString

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String toString ()
```

Returns a string representation of the object.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | string representation. <br /> |

### writeToParcel

Added in [API level 17](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void writeToParcel (Parcel dest, 
                int flags)
```

Implement the Parcelable interface

<br />

| Parameters ||
|---|---|
| `dest` | `Parcel`: The Parcel in which the object should be written. This value cannot be `null`. <br /> |
| `flags` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |