6.4.2 Handset and headset UE receiving
26.1313GPPRelease 18RequirementsTerminal acoustic characteristics for telephonyTS
The sensitivity/frequency characteristics shall be as follows:
The receiving sensitivity frequency response, measured either from the digital interface to the DRP with diffuse-field correction or from the SS audio input (analogue or digital input of the reference speech encoder of the SS) to the DRP with diffuse-field correction, shall be within a mask, which can be drawn with straight lines between the breaking points in table 10 on a logarithmic (frequency) – linear (dB sensitivity) scale.
Table 10: Handset and headset receiving sensitivity/frequency mask
|
Frequency (Hz) |
Upper limit (dB) 8 ± 2 N |
Lower limit (dB) 8 ± 2 N |
|
100 |
6 |
|
|
200 |
6 |
-10 |
|
300 |
6 |
-6 |
|
1 000 |
6 |
-6 |
|
2 000 |
8 |
-6 |
|
5 000 |
8 |
-6 |
|
6 300 |
8 |
-12 |
|
8 000 |
8 |
|
|
NOTE: All sensitivity values are expressed in dB on an arbitrary scale. |
||
Figure 10: Handset and headset receiving sensitivity/frequency mask
Compliance shall be checked by the relevant test described in TS 26.132.