QoE Metrics Reporting - M1 Provisioning - samplingPeriod can be negative

[dsilhavy]

Description

TS 26.512 Table 7.8.3-1 defines the samplingPeriod as follows:

The time interval the 5GMS Client should wait between sampling the QoE metrics specified by this metrics reporting configuration.

In my opinion, a negative value does not make sense here, although it is not explicitly mentioned in the specification. However, the type of the samplingPeriod is DurationSec which is defined in TS29571_CommonData as :

    DurationSec:
      type: integer
      description: indicating a time in seconds.

A negative time in seconds seems to be unreasonable. I suggest to return an error in case a negative value for samplingPeriod is provided.

[dsilhavy]

@rjb1000 Any opinion on this? Should DurationSec be UInt?

[rjb1000]

Quite possibly, @dsilhavy .

But note that TS 29.571 is a specification under CT control, and so more difficult to "fix".

An alternative solution might be to switch to the Duration data type defined in the common data types for TS 26.512 (and, in Rel-18, ported to TS 26.510). This uses the string-based representation specified in ISO 8601 and RFC 3339 instead of an integer.

[rjb1000]

See also #145.

[dsilhavy]

Confirmed this is fixed with the latest changes