5 ms·

Seeing as how latency did not decrease from the previous generation, is it fair to say that existing latency is inherently tied to 5G (and other) wireless proto

by vxxzy 3y ago

Seeing as how latency did not decrease from the previous generation, is it fair to say that existing latency is inherently tied to 5G (and other) wireless protocol(s)?

supertrope 3y ago
Look for standalone 5G (SA) if you want lower latency. Most 5G is actually bonding 5G channel(s) to a main 4G control channel(s) so it has 4G latency.
- fy20 3y ago
  Wasn't lower latency one of the big selling points of 5G...?
inkyoto 3y ago
> […] latency is inherently tied to 5G (and other) wireless protocol(s)? It is tied to 5G but not to the wireless network. It is tied to the 5G core (wired) network design where the device's IP traffic terminates at each cell site that has its own IP connection to a uplink ISP. Therefore, each cell site is also an exit node for the IP traffic. 5G has incorporated this design feature for two major reasons: 1) reduced latency, 2) mobile edge computing where compute nodes could placed at the cell site location to offload computations to (think Cloudflare worker style nodes that a mobile device can send off a compute unit to and get results quickly. Practically, I do not think anyone has implemented the mobile edge computing other than placing game servers next the cell). In 3G and 4G, on the hand, IP packets had to travel across the entire core network of a mobile operator and exit the core network at a single point which resulter in a higher latency.
- prennert 3y ago
  I think the edge compute on the 5G towers is mostly an industry application in dedicated private networks rather than public networks for end users. For example, a factory might use 5G as their wireless networking stack (instead of Wi-Fi) to collect sensor data from machines, robots, process nodes, moving inventory, etc and place the compute at the tower to filter what data to forward to the cloud, or to implement some control logic.

by vxxzy 3y ago

Seeing as how latency did not decrease from the previous generation, is it fair to say that existing latency is inherently tied to 5G (and other) wireless protocol(s)?

supertrope 3y ago

Look for standalone 5G (SA) if you want lower latency. Most 5G is actually bonding 5G channel(s) to a main 4G control channel(s) so it has 4G latency.

fy20 3y ago
Wasn't lower latency one of the big selling points of 5G...?

inkyoto 3y ago

> […] latency is inherently tied to 5G (and other) wireless protocol(s)? It is tied to 5G but not to the wireless network. It is tied to the 5G core (wired) network design where the device's IP traffic terminates at each cell site that has its own IP connection to a uplink ISP. Therefore, each cell site is also an exit node for the IP traffic. 5G has incorporated this design feature for two major reasons: 1) reduced latency, 2) mobile edge computing where compute nodes could placed at the cell site location to offload computations to (think Cloudflare worker style nodes that a mobile device can send off a compute unit to and get results quickly. Practically, I do not think anyone has implemented the mobile edge computing other than placing game servers next the cell). In 3G and 4G, on the hand, IP packets had to travel across the entire core network of a mobile operator and exit the core network at a single point which resulter in a higher latency.

prennert 3y ago
I think the edge compute on the 5G towers is mostly an industry application in dedicated private networks rather than public networks for end users. For example, a factory might use 5G as their wireless networking stack (instead of Wi-Fi) to collect sensor data from machines, robots, process nodes, moving inventory, etc and place the compute at the tower to filter what data to forward to the cloud, or to implement some control logic.