Probably not - the 7920 is on the network as an access device, not a trunked device...
As on the wired side CoS only exists on trunk ports (as part of the trunk header), it probably isn't present on the 7920-AP traffic, and therefore won't appear on the AP-network link (unless you have specifically configured the AP to mark traffic from the VVLAN?).
You should probably configure the switch for trust-dscp, as the 7920 should mark this.
Regards
Aaron
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Aaron
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