Wireless networks' latency problems are almost entirely caused by contention, buffering, and vast over-booking of bandwidth, where raw bandwidth number competition has been over-valued relative to actual network application performance.
L4S is on its way, and may finally be the beginning of the end for bufferbloat and congestion, and vendors of mobile devices are in an almost unique position of being able to roll out network stack changes en masse. And just for once, consumer incentives, vendor incentives and network operator incentives all align - and it's incremental, and lacking in incentives for bad actors.
The development of L4S has been a pincer operation across all levels of the network stack, integrating everything previously understood about latency and congestion in real networks, and one of the most impressive bits of network engineering I've seen in the history of the Internet.
L4S is on its way, and may finally be the beginning of the end for bufferbloat and congestion, and vendors of mobile devices are in an almost unique position of being able to roll out network stack changes en masse. And just for once, consumer incentives, vendor incentives and network operator incentives all align - and it's incremental, and lacking in incentives for bad actors.
See this blog entry: https://www.ietf.org/blog/banishing-bufferbloat/ for more on L4S and bufferbloat. And this: https://datatracker.ietf.org/meeting/105/materials/slides-10... for a proper technical deep dive.
The development of L4S has been a pincer operation across all levels of the network stack, integrating everything previously understood about latency and congestion in real networks, and one of the most impressive bits of network engineering I've seen in the history of the Internet.