Use of aspId and externalApplicationId in M1_ProvisioningSession_createProvisioningSession

[davidjwbbc]

Description

In TS 26.512 table 7.2.3.1-1 there are two properties of a ProvisioningSession resource: aspId and externalApplicationId. It is not clear why one is optional and the other is not, and the use to which these two properties will be put within the 5GMS Application Function is also unclear.

• For aspId the text indicates that it is specified in clause 5.6.2.3 of TS 29.514. However, the specification just says that it is an identifier included if "SponsoredConnectivity" is an enabled feature in the PCF. There are no clear details of where this aspId comes from. It is also not clear whether or not the feature being available in the PCF affects the inclusion of this field when creating a Provisioning Session in the 5GMS Application Function.
• The externalApplicationId refers to TS 29.571 for the definition. However the ApplicationId in TS 29.571 is merely defined as being a string with no details about who or what defines the string and what its use is within the 5G System. This is also a mandatory property of a ProvisioningSession, with no details of where it comes from or what use it will be put to.

Could we get some clarity from the writers of these sections about what these field are and what they are for?

Suggestions

• Improve the description of the create operation in TS 26.512 clause 4.3.2.2 to include a description of these fields and what use they are to be put to.
• Improve the description of the fields in TS 26.512 table 7.3.2.1-1.
  • Include when an aspId should be supplied and when it should be omitted.
  • Elaborate on what the externalApplicationId is and what it is used for.
• Improve the description of the ApplicationId in TS 29.571 to include what its origin is and what it is for.

[rjb1000]

@ibouazizi comment: We need to dig deeper to better understand these two identifiers.

[rjb1000]

Change Request addressing this issue endorsed during yesterday's 3GPP SA4 ad hoc call:

• TS 26.512
  • Rel-17 CR0054 "[5GMS3, TEI17] Essential maintenance" in S4aI230145.
  • Rel-16: To be derived.

Revisions to be contributed to SA4#126 (Chicago).

[rjb1000]

Change Requests agreed at SA4#126 (Chicago):

• TS 26 512
  • Rel-17: CR0054r1 "Essential maintenance" in S4-231631.
  • Rel-16: CR0056 "Essential maintenance" in S4-231632.

See clarification of (renamed) ProvisioningSession.appId property in table 7.2.3.1-1.

[rjb1000]

CR Packs approved at SA#102 (Edinburgh):

• Rel-16: SP-231367.
• Rel-17: SP-231368.

[rjb1000]

• TS 26.512 V16.12.0 published.
• TS 26.512 V17.7.0 published.
• TS 26.512 V18.0.0 published.