The same way True 4G had a real definition based on IMT-Advanced, the ITU released in February 2017 the draft of IMT-2020 describing the minimum requirements related to technical performance for IMT-2020 radio interface(s), which sets the goals for 5G.
The draft document which will be finalized before the end of 2017 can be downloaded here: Minimum requirements related to technical performance for IMT-2020 radio interface(s).
IMT-2020 lists in particular the following requirements, which will be a simple guide to cut the crap out of any marketing attempt to call “5G” or “Evolution to 5G” any technology that does not meet all of those targets:
Peak data rate
– Downlink peak data rate is 20 Gbit/s.
– Uplink peak data rate is 10 Gbit/s.
Peak spectral efficiency
– Downlink peak spectral efficiency is 30 bit/s/Hz.
– Uplink peak spectral efficiency is 15 bit/s/Hz.
User experienced data rate
– Downlink user experienced data rate is 100 Mbit/s.
– Uplink user experienced data rate is 50 Mbit/s.
5th percentile user spectral efficiency
|Indoor Hotspot – eMBB||0.30||0.21|
|Dense Urban – eMBB (NOTE 1)||0.225||0.15|
|Rural – eMBB||0.12||0.045|
NOTE 1: This requirement will be evaluated under Macro TRxP layer of Dense Urban – eMBB test environment as described in Report ITU-R M.[IMT-2020.EVAL].
Average spectral efficiency
|Indoor Hotspot – eMBB||9.0||6.75|
|Dense Urban – eMBB (NOTE 2)||7.8||5.40|
|Rural – eMBB||3.3||1.60|
NOTE 2: This requirement applies to Macro TRxP layer of the Dense Urban – eMBB test environment as described in Report ITU-R M.[IMT-2020.EVAL].
Area traffic capacity
The target value for Area traffic capacity in downlink is 10 Mbit/s/m2 in the Indoor Hotspot – eMBB test environment.
User plane latency
– 4 ms for eMBB
– 1 ms for URLLC
Control plane latency
The minimum requirement for control plane latency is 20 ms.
Proponents are encouraged to consider lower control plane latency, e.g. 10 ms.
The minimum requirement for connection density is 1,000,000 devices per km2.
a) Efficient data transmission in a loaded case;
b) Low energy consumption when there is no data.
The minimum requirement for the reliability is 1-10-5 success probability of transmitting a layer 2 PDU (protocol data unit) of 32 bytes within 1 ms in channel quality of coverage edge for the Urban Macro-URLLC test environment, assuming small application data (e.g. 20 bytes application data + protocol overhead).
Proponents are encouraged to consider larger packet sizes, e.g. layer 2 PDU size of up to 100 bytes.
The following classes of mobility are defined:
– Stationary: 0 km/h
– Pedestrian: 0 km/h to 10 km/h
– Vehicular: 10 km/h to 120 km/h
– High speed vehicular: 120 km/h to 500 km/h
The requirement for bandwidth is at least 100 MHz.
The RIT/SRIT shall support bandwidths up to 1 GHz for operation in higher frequency bands (e.g. above 6 GHz).
Proponents are encouraged to consider extensions to support operation in wider bandwidths considering the research targets expressed in Recommendation ITU-R M.2083.