B.2 Use of wild-carded ProSe Application IDs
23.3033GPPProximity-based services (ProSe)Release 17Stage 2TS
The monitoring or announcing UE can request to monitor or announce a ProSe Application Code that has countrywide or global scope following the procedures defined in clause 5.3.3 by wildcarding accordingly the MNC element of the PLMN ID of the ProSe Application ID (for countrywide) or both the MCC and MNC (for global) elements of the PLMN ID of the ProSe Application ID.
The monitoring UE will have to know whether to send a monitoring request for PLMN specific, or countrywide, or global ProSe Application ID, based on the configuration that applies to the particular data structure.
If country-wide or global data structures are used then PC6 and PC7 interfaces are not used for monitoring requests.
For example if the UE is interested to monitor or announce for restaurants that are registered in a configured PLMN specific data structure (e.g., local restaurants in a particular geographical area) it will send a monitoring request that contains only the following PLMN specific ProSe Application ID. If on the other hand the UE is interested to monitor or announce for restaurants that are registered in the configured global data structure (e.g., chain restaurants present in several countries/available all over the world) it will send a monitoring or announcing request that contains only the global ProSe Application ID. The monitoring UE can also send multiple ProSe Application IDs with different scope in the same request, but overall it should not be considered that one ProSe Application ID replaces the other.
Annex C (normative):
WLAN-based ProSe Direct Discovery