Subject: [tsvwg] 3GPP RAN2 : On TCP-specific improvements in the RAN

From: Ingemar Johansson S <[email-masked]>
Date: Wed, 29 Mar 2017 14:40:15 +0000

Hi

This is an input to 3GPP-RAN2 that I wrote up recently, it will be discussed at a 3GPP-RAN2 meeting next week.
The document addresses various intentions to optimize TCP performance in 3GPP networks. L4S is here (briefly) introduced as a generic method to optimize transport protocol performance regardless it is TCP, QUIC, .. pigeon datagrams...
To put it short, there are two main recommendations in the paper

1)    3GPP should avoid the standardization of certain TCP specific optimizations such as ACK thinning

2)    3GPP should consider new low latency technologies like L4S

http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_97bis/Docs/R2-1702661.zip

Abstract: "There is an ongoing discussion on the merits of TCP ACK thinning in RAN with the objective to minimize the ACK traffic, and the merits with ACK prioritization. This input paper discusses the actual need for such functionality and the applicability in perspective of future transport protocol evolution and future evolution towards low latency access technology. In short we conclude that no TCP-specific improvements are necessary."
Enjoy
/Ingemar
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Ingemar Johansson  M.Sc.
Master Researcher

Ericsson AB
Wireless Access Networks
Labratoriegränd 11
971 28, Luleå, Sweden
Phone +46-1071 43042
SMS/MMS +46-73 078 3289
[email-masked]<mailto:[email-masked]>
www.ericsson.com

A mistake is to commit a misunderstanding
                     Bob Dylan
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