5.4.4 Desktop and vehicle-mounted hands-free UE receiving

26.1313GPPRelease 17RequirementsTerminal acoustic characteristics for telephonyTS

The receiving sensitivity frequency response from the SS audio input (analogue or digital input of the reference speech encoder of the SS) to the free-field shall be as follows:

The receiving sensitivity frequency response shall be within the mask which can be drawn with straight lines between the breaking points in table 4 on a logarithmic (frequency) – linear (dB sensitivity) scale.

Table 4: Desktop and vehicle-mounted hands-free receiving sensitivity/frequency mask

Frequency (Hz)

Upper limit (dB)

Lower limit (dB)

200

6

315

6

-9

400

6

-6

3 100

6

-6

4 000

6

NOTE: All sensitivity values are expressed in dB on an arbitrary scale.

Figure 4: Desktop and vehicle-mounted receiving sensitivity/frequency mask

Compliance shall be checked by the relevant test described in TS 26.132.