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 |
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Fields | |
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public
static
final
Creator<CellSignalStrengthLte> |
CREATOR
Implement the Parcelable interface |
Public methods | |
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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 |
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 | |
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Fields
CREATOR
public static final Creator<CellSignalStrengthLte> CREATOR
Implement the Parcelable interface
Public methods
describeContents
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
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 returntrue
. - It is symmetric: for any non-null reference values
x
andy
,x.equals(y)
should returntrue
if and only ify.equals(x)
returnstrue
. - It is transitive: for any non-null reference values
x
,y
, andz
, ifx.equals(y)
returnstrue
andy.equals(z)
returnstrue
, thenx.equals(z)
should returntrue
. - It is consistent: for any non-null reference values
x
andy
, multiple invocations ofx.equals(y)
consistently returntrue
or consistently returnfalse
, provided no information used inequals
comparisons on the objects is modified. - For any non-null reference value
x
,x.equals(null)
should returnfalse
.
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 | |
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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
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
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
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
public int getDbm ()
Get signal strength in dBm
Returns | |
---|---|
int |
the RSRP of the measured cell. |
getLevel
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
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
public int getRsrq ()
Get reference signal received quality
Returns | |
---|---|
int |
the RSRQ if available or
UNAVAILABLE if unavailable. |
getRssi
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
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
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
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 inequals
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 thehashCode
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 thehashCode
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
public String toString ()
Returns a string representation of the object.
Returns | |
---|---|
String |
string representation. |
writeToParcel
public void writeToParcel (Parcel dest, int flags)
Implement the Parcelable interface
Parameters | |
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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 |