6.4.1 Handset and headset UE sending
26.1313GPPRelease 18RequirementsTerminal acoustic characteristics for telephonyTS
The sensitivity/frequency characteristics shall be as follows:
The sending sensitivity frequency response, measured either from the mouth reference point (MRP) to the digital interface or from the MRP to the SS audio output (digital output of the reference speech decoder of the SS), shall be within a mask, which can be drawn between the points given in table 9. The mask is drawn with straight lines between the breaking points in table 1 on a logarithmic (frequency) – linear (dB sensitivity) scale.
Table 9: Handset and headset sending sensitivity/frequency mask
|
Send sensitivity/frequency response Frequency (Hz) |
Upper limit (dB) |
Lower limit (dB) |
|
100 |
0 |
|
|
200 |
5 |
-5 |
|
5 000 |
5 |
-5 |
|
6 300 |
5 |
-10 |
|
8 000 |
5 |
|
|
NOTE: All sensitivity values are expressed in dB on an arbitrary scale. |
||
Figure 9: Handset and headset sending sensitivity/frequency mask
Compliance shall be checked by the relevant test described in TS 26.132.