1-2 ms is on the 5G roadmap but years away almost everywhere. 90% of "5G" before next decade will be at 3.5 GHz, with speeds almost identical to LTE. The Emperor has no clothes.
These figures are from Ericsson, which has been working on 5G since 2011. All Ericsson radios since 2015 have been able to switch from 4G LTE to 5G with software. (below) Nokia probably is the same or worse but I'm still waiting for the data. Depending on the upgrade cycle, LTE in some places will have lower latency than 5G at 3.5 GHz.
"From mid-2018 Ericsson will have support for latency (Round Trip Time, RTT) down to 9ms on the LTE air interface (Based on the 3GPP Rel-14)."
LTE latency can stay close after that. The chart shows that shorter TTI (Transmission Time Interval) and reduced terminal time 4-7 ms is in the standard. (Larger below)
"LTE will have the capability to reach a latency down to 2ms on the air interface."
90% of "5G" before next decade will be at 3.5 GHz, with speeds almost identical to LTE. The Emperor has no clothes. 5G at higher frequencies can deliver 20 gigabits down. The "5G NR" software couldn't increased speeds at 3.5 GHz by much, I knew. because 4G LTE efficiency was already close to Shannon's limit.
The politicians are now piling on, without any regard for the truth.
Installed Ericsson Radio System products ready for 5G NR
- All radio products within Ericsson Radio System delivered since 2015 will support 5G New Radio (NR) capability through remote software installation
- Enables fast and smooth migration to 5G in existing bands, as well as fast coverage expansion of 5G services for operators
Ericsson (NASDAQ: ERIC) announces today its installed base of radio products from the Ericsson Radio System portfolio will be able to run 5G New Radio (NR). This capability will be achieved through a remote software installation.
This applies to more than 150 different radio variants in Ericsson Radio System that are active in more than 190 networks around the world, meaning that Ericsson Radio System legacy radios from 2015 can support 5G NR. This 5G NR readiness also applies to Ericsson’s delivered micro radios in Ericsson Radio System and existing Radio Dot System products. In short, all Ericsson Radio System products are ready for 5G NR.
Fredrik Jejdling, Executive Vice President and Head of Business Area Networks, Ericsson, says: “We have a long history of strong backwards compatibility and our products and software are built for evolution – with Ericsson, there is no need to rip and replace. Investments in Ericsson Radio System since 2015 will continue to bring operators value when the time is right to transition to 5G.”
Daniel Staub, Head of Joint Mobile Group, Swisscom, says: “Today’s news means that we can launch 5G services more efficiently with our future-proofed Ericsson Radio System products – significantly boosting the long-term value of our network assets.”
Operators will have the possibility to run 4G and 5G in the same band with the same radio and the same baseband. It will also be possible to share the spectrum between 4G and 5G with side-by-side carriers in the same band, and even with overlapping carriers using so-called ‘Dynamic Spectrum Sharing’ functionality.
