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antennas, 10 layers are scheduled consistently every TTI
where each layer has QPSK modulation.

This experiment shows that high directivity narrow beam
with 30-degree azimuth coverage can pair an average of 10
layers with up to 2 bits/sec/Hz per layer. This remarkable
capacity increase becomes even more pronounced when
multiple such panels are employed to achieve 360-degree
coverage, leading to an exceptional enhancement in overall
capacity.
Table 9 – Achievable spectral efficiency using S-MIMO
with multiple antenna panels – Mid-band (fc < 7.5GHz)

Figure 10 – Achievable spectral efficiency with S-MIMO
in downlink

4. IMT 2030 CAPABILITIES OBTAINED USING
A FUSION OF OTFDM AND S-MIMO

We undertake an assessment to ascertain the attainability of
IMT-2030 key radio network capabilities by leveraging a
fusion of OTFDM and S-MIMO principles. The ensuing
passage presents a concise overview of our analysis.
Table 8 – DL S-MIMO MU-MIMO simulation
assumptions
Hyper Low Latency: OTFDM allows transmission of
3.2 Network Level Evaluation of S-MIMO concept data/control and RS in a single shot transmission. Latency
is primarily dictated by the TTI duration, which is 17.839,
Building upon the compelling outcomes of our prior 8.919 and 4.49 micros seconds for 60,120, and 240 KHz SCS,
experiments, we proceeded to conduct a network-level respectively. In practice, considering the scheduling latency
performance evaluation of the S-MIMO concept using and the latency due to the TDD frame structure, the overall
simulation. In this evaluation, we employed 3, 6, and 12 processing time required to achieve for packet transmitted to
antenna panels to achieve comprehensive 360-degree reach the receiver can meet the IMT 2030 targets.
coverage. The spectrum efficiency results obtained from this
evaluation are presented in Table 8 and Figure 10. Waveform Efficiency: The OTFDM waveform can reach
Remarkably, the results reveal that S-MIMO can achieve up close to 100% PA efficiency for pi/2 BPSK case to serve
to 116 Bits/Sec/Hz (all Panels combined), showcasing a users at the cell edge. Higher order modulation alphabets can
significant capacity increase when compared to existing 5G be used to serve users located closer to the base station.
systems that offer up to 21 bits/sec/Hz, representing a
remarkable 5.5-fold spectrum efficiency improvement. Spectrum Efficiency: IMT-2030 framework document
envisages a 1.5-3-fold increase in average spectrum

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