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[STDS-802-11-TGBN] your contribution 24/656



Hi Binita , All,


A lot of members show the interested in the AID assignment during the roaming procedure, let me initialize this mail thread.

Take the following figure as the example, non-AP MLD set up two links with the current AP MLD before roaming phase, and the current AP MLD assigns AID=100 to the non-AP MLD ,


During the roaming preparation/excuration phase, the Target AP MLD assigns a new AID(like AID=200) via the ML reconfiguration response frame you proposed.

The question is such new AID only applied on Link ID=1 but not Link ID=0 on non-AP MLD side, because  link ID=0 is still used to received the DL traffic from the current AP MLD .

Once the AID on two links is updated to AID=200, the MU DL case (and TB UL case) don't work on the current AP MLD , as the current AP MLD has no ideas on the new AIDs unless we define some synchronize between the two AP MLDs .

That's why I said the AID assignment must be LINK level at this moment, that's, there is no AID update on  the link associated with the current AP MLD. 







Thanks


Best Regards


Jay Yang (杨志杰)




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