Re: Hope a discussion for draft-li-quic-optimizing-ack-in-wlan-00

[Martin Thomson <[e-mail]>]

Can you speak a little about the relationship with draft-iyengar-quic-delayed-ack ?

On Sat, Jul 4, 2020, at 16:05, Kangjiao wrote:
>  
> Dear QUIC WG members,
> 
> 
> We uploaded a draft describing a mechanism for ACK optimization to QUIC 
> group. The link is 
> https://datatracker.ietf.org/doc/draft-li-quic-optimizing-ack-in-wlan/. 
> This solution comes from our practice and the results show it is a good 
> replacement of the traditional ACK mechanism to compensate for 
> scenarios where the acknowledgement overhead is non-negligible (i.e., 
> wireless scenarios).
> 
> 
> The key points for this solution can be:
> 
> 
> 1. We conclude the formula of the minimum ACK intensity required for 
> QUIC transport.
> 
> 
> 2. In order to alleviate the error in RTT estimation, we use protocol 
> extensions and a one-way delay factor. We think this round-trip timing 
> method can also be applicable for the ack thinning mechanisms (such as 
> ”Changing the Default QUIC ACK Policy” #3529) that have been discussed 
> in QUIC group..
> 
> 
> 3. For implementation and interoperability, we define a new 
> ACK-INTENSITY Frame in which ACK Intensity is set. ACK Intensity is a 
> variable-length integer indicating the updated intensity of QUIC ACK 
> Frame calculated by our formula.
> 
> 
> We look forward to your valuable comments and suggestions. Thanks.
> 
> 
> Sincerely,
> 
> Jiao
>