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Slide1
Multi-link Broadcast Addressed frame Reception
Date:2019-08-27
Authors:
Po-Kai Huang (Intel)
Background
Multi-link framework has been proposed below. We discuss how toreceive broadcastaddressed frame for non-AP MLLE.
Po-Kai Huang (Intel)
Slide2
AP1
AP2
AP3
STA1
STA2
STA3
AP MLLE
Non-AP MLLE
Consideration for Broadcast Addressed Data Reception
Broadcast addressed data reception is done mainly by DTIM mechanismWe think that due to existence of legacy STAs in each link, the most common case is that a broadcast addressed data frame is transmitted in each linkFor a non-AP MLLE, it then does not make sense to follow DTIM of each link to receive duplicate broadcast addressed frame. Non-AP MLLE only needs to follow one DTIM to receive broadcast addressed data frameFor one radio non-AP MLLE, follow DTIM in one linkenables further power save and avoid complexity of constant switching among links
Po-Kai Huang (Intel)
Slide3
Link 1
Link 2
DTIM
DTIM
Consideration for Broadcast AddressedManagement FrameReception
There are many other broadcast addressed management frame to deal with management of configuration/parameters of each linkIt again does not make sense for non-AP MLLE to constantly wake up in different links to receive update on link managementIt is also useful for AP MLLE to know the link that non-AP MLLE camps to receive broadcast addressed management frame for link managementProposal:anon-AP MLLE only needs to follow one configured link among the links setup with the an AP MLLE to receive broadcast addressedframe
Po-Kai Huang (Intel)
Slide4
Can the configured link be different for different non-AP MLLEs?
We think that different non-AP MLLEs, specifically the one that only supports one radio, may want to camp on different links for broadcast addressed frameThere may not be common link available for non-AP MLLE. For example, some non-AP MLLE may setup only 2 links, and other non-AP MLLE may setup 3 links.Different non-AP MLLE may see different congestion environment or camp on different links for load balancing reasonProposal:Havea TBD mechanism to determine configured link to receive broadcast addressed frame
Po-Kai Huang (Intel)
Slide5
Summarized Proposal
a non-AP MLLE only needs to follow one configured link among the links setup with the an AP MLLE to receive broadcast addressed framehave a TBD mechanism to determine configured link to receive broadcast addressed frame
Po-Kai Huang (Intel)
Slide6
Conclusion
We discuss the consideration ofmulti-link broadcast addressedframereceptionIt makes sense for a non-AP MLLE to follow only one configured link to receive broadcast addressed frame based on the consideration of duplicate data frame detection, power save, and complexity of constant switchWe propose to have a TBD mechanism to change the configured link of a non-AP MLLE
Po-Kai Huang (Intel)
Slide7
Straw Poll
Do you support thatanon-APMLLE only needs to followoneconfigured link among the links setup with the an AP MLLE toreceive broadcast addressed framehave a TBD mechanism to determine configured link to receive broadcast addressed frame
Po-Kai Huang (Intel)
Slide8

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WNG SC Agenda - mentor.ieee.org