SNMP - retrieve wireless interfaces and virtual APs

Hello
I’m sending SNMP requests to grab data about “how are used my wireless interfaces”.
I can get wireless interfaces list:
walk .iso.org.dod.internet.private.enterprises.mikrotik.mikrotikExperimentalModule.mtXRouterOs.mtxrWireless.mtxrWlApTable.mtxrWlApEntry

But in this list, real interfaces and virtual APs are melted, without the parent information. The real interfaces have stats like frequency or CCQ, and the virtual ones have stats like SSID or registered clients. Nice, but i don’t know who is parent of who.
In the case of a dual band AP, I am unable to know how many people are connected to each radio.. How can i get this?

The solution i found so far is to use a convention to name wlans. For example wlan_public_24 for a 2.4Ghz virtual AP, porn_only_5 for 5Ghz, etc.
It’s quite dirty but at least with SNMP i can guess the parent of the virtual AP just by fetching the interface name..