94.9.2 Information Element Table

IE Name

Range/Unit

Arg.

Description

Refined

AMR Codec Usage Downlink

0 ... 100
%

1 ... 17

Current distribution of AMR codec usage on downlink.

Argument: Identifies the AMR codec. See also ► 3GPP 26.071, 26.190.

1: AMR-NB 12.2 kbit/s
2: AMR-NB 10.2 kbit/s
3: AMR-NB 7.95 kbit/s
4: AMR-NB 7.40 kbit/s
5: AMR-NB 6.70 kbit/s
6: AMR-NB 5.90 kbit/s
7: AMR-NB 5.15 kbit/s
8: AMR-NB 4.75 kbit/s
9: AMR-WB 6.60 kbit/s
10: AMR-WB 8.85 kbit/s
11: AMR-WB 12.65 kbit/s
12: AMR-WB 14.25 kbit/s
13: AMR-WB 15.85 kbit/s
14: AMR-WB 18.25 kbit/s
15: AMR-WB 19.85 kbit/s
16: AMR-WB 23.05 kbit/s
17: AMR-WB 23.85 kbit/s

✔

AMR Codec Usage Uplink

0 ... 100
%

1 ... 17

Current distribution of AMR codec usage on downlink.

Argument: See "AMR Codec Usage Downlink".

✔

AQM Algorithm Downlink

Text

–

AQM algorithm used to produce downlink speech quality scores. One of "PESQ", "P.OLQA NB", "P.OLQA SWB".

✔

AQM Algorithm Uplink

Text

–

AQM algorithm used to produce uplink speech quality scores.

✔

AQM Audio Channel Type Downlink

Text

–

Type of audio channel used for the speech serving as input to downlink AQM: "CS" or "IP".

 

AQM Echo Attenuation

0 ... 100
dB

–

Echo attenuation on downlink.

✔

AQM Echo Correlation

0 ... 5

–

Echo correlation on downlink.

 

AQM Echo Delay

0 ... 1000
ms

–

Echo delay on downlink.

 

AQM Echo Power

0 ... 100
dB

–

Echo power on downlink.

 

AQM Sentence Downlink

Text

–

Name of audio file containing the downlink AQM sentence.

✔

AQM Sentence Uplink

Text

–

Name of audio file containing the uplink AQM sentence.

✔

AQM Source Downlink

Text

–

Source of the audio input to downlink AQM, for example: "ACU R2", "Terratec", "F3607", "PJSIP", "ODM".

✔

AQM Source Uplink

Text

–

Source of the audio input to uplink AQM.

✔

AQM Volume Downlink

–100 ... 20
dB

–

Volume on downlink.

✔

AQM Volume Uplink

–100 ... 20
dB

–

Volume on uplink.

✔

Frequent AQM IEs: General remark

When a mobile-to-fixed configuration is used, these elements (uplink and downlink scores) only appear in merged logfiles; see UM section "Merging Uplink AQM Data into Logfiles".

Frequent AQM Score Downlink

1 ... 5
MOS

–

Frequent AQM score for last speech sentence played on the downlink.

 

Frequent AQM Score Uplink

1 ... 5
MOS

–

Frequent AQM score for last speech sentence played on the uplink.

 

PESQ and POLQA IEs: General remark

The argument has the following significance:

0: The score is updated independently of "AQM Audio Channel Type Downlink".
1: The score is updated only if the audio channel type is CS.
2: The score is updated only if the audio channel type is IP. The update interval is 11 s.

PESQ Score Downlink

1 ... 5
MOS

0 ... 2

Downlink PESQ score.

✔

PESQ Score Uplink

1 ... 5
MOS

0 ... 2

Uplink PESQ score.

✔

POLQA NB Score Downlink

1 ... 5
MOS

0 ... 2

Downlink POLQA score for narrowband speech.

✔

POLQA NB Score Uplink

1 ... 5
MOS

0 ... 2

Uplink POLQA score for narrowband speech.

✔

POLQA SWB Score Downlink

1 ... 5
MOS

0 ... 2

Downlink POLQA score for super-wideband speech.

✔

POLQA SWB Score Uplink

1 ... 5
MOS

0 ... 2

Uplink POLQA score for super-wideband speech.

✔

RTP Stream IEs: General remark

These are RTP stream metrics obtained during video telephony calls. The metrics are updated once every second.

 

RTP Stream Corrected Loss Ratio Downlink

0 ... 100
%

–

Proportion of downlink stream transport packets lost in the transport network after error correction algorithms have been applied, e.g. FEC or Reliable UDP.

 

RTP Stream Discard Ratio Downlink

0 ... 100
%

–

Proportion of downlink stream transport packets discarded due to late arrival.

 

RTP Stream Packet To Packet Delay Variation Downlink

0 ... 172800
ms

–

Instantaneous packet-to-packet delay variation (= interarrival jitter according to ► RFC 3550, section 6.4.1) on downlink.

 

RTP Stream Uncorrected Loss Ratio Downlink

0 ... 100
%

–

Proportion of downlink stream transport packets lost in the transport network prior to application of error correction algorithms.

 

RTP Stream Video Bandwidth Downlink

0 ... 350000
kbit/s

–

Average video bandwidth on downlink, excluding transport packet header overhead and error correction/retransmission.

 

RTP Stream Video Bandwidth Uplink

0 ... 350000
kbit/s

–

Average video bandwidth on uplink, excluding transport packet header overhead and error correction/retransmission.

 

RTP Stream Video Codec Downlink

Text

–

Video codec used to encode the downlink video stream.

 

RTP Stream Video Codec Uplink

Text

–

Video codec used to encode the uplink video stream.

 

RTP Stream Video Frame Height Downlink

Text

–

Downlink video frame height in pixels.

 

RTP Stream Video Frame Height Uplink

Text

–

Uplink video frame height in pixels.

 

RTP Stream Video Frame Rate Downlink

Text

–

Downlink video frame rate, given as number of frames per 1000 seconds (e.g. "29,970" equaling 29.97 frames per second).

 

RTP Stream Video Frame Rate Uplink

Text

–

Uplink video frame rate, given as number of frames per 1000 seconds.

 

RTP Stream Video Frame Width Downlink

Text

–

Downlink video frame width in pixels.

 

RTP Stream Video Frame Width Uplink

Text

–

Uplink video frame width in pixels.

 

RTP Stream Video Packets Corrected Downlink

0 ... 100
%

–

Proportion of stream video transport packets corrected by FEC.

 

RTP Stream Video Packets Discarded Downlink

0 ... 100
%

–

Proportion of stream video transport packets discarded.

 

RTP Stream Video Packets Lost Downlink

0 ... 100
%

–

Proportion of stream video transport packets lost.

 

Speech Codec

0 ... 9

–

Speech codec used in a voice call.

0: Unknown
1: GSM Full Rate (FR)
2: GSM Enhanced Full Rate (EFR)
3: GSM Half Rate (HR)
4: AMR-NB Full Rate
5: AMR-NB Half Rate
6: AMR-WB Full Rate
7: AMR-WB Half Rate
8: G.711 A-law
9: G.711 μ-law

✔

Speech Interruption Downlink

Text

–

Indicates silence on the downlink when speech should be present by the value "Silence detected". When speech is transmitted normally, the value is "Voice detected".

Note: To obtain this IE, you must set Full Calculation to "Yes" in the "Voice Quality" activity.

 

Speech Path Delay (RTT)

0 ... 4000
ms

–

The length of time it takes for the speech to travel from the receiving party to the calling party and back to the receiving party again.

In a mobile-to-mobile configuration, this element is obtained on the MT side. In a mobile-to-fixed configuration, the element is calculated by the CallGenerator and only appears in merged logfiles (see UM section "Merging Uplink AQM Data into Logfiles").

✔

Speech Path Delay One Way

0 ... 4000
ms

–

Defined as half of "Speech Path Delay (RTT)".

✔