1. Prof. Kiran Kuchi IIT HyderAbad
5G India Initiatives
Prof. Kiran Kuchi
IIT HyderAbad

2. Outline of Talk India contributions to 5G standards
Testbed and Field trials
Indigenous 5G testbed project
Prof. Kiran Kuchi

3. Accomplishments in 5G Two main goals: Coverage (LMLC) and Capacity
LMLC Coverage
Low PAPR waveform –pi/2 BPSK with spectrum shaping
Doubles UE power without change in hardware, translates to larger coverage
Capacity
Maximize spectrum utilization - bits/sec/Hz
A new type of Advanced Massive MIMO/Cloud RAN developed
30th May 2018
Prof. Kiran Kuchi

4. pi/2-BPSK with Spectrum Shaping
BPSK data
Pi/2 Constellation rotation
1+D Precoder
M-point DFT
IFFT CP
Subcarrier mapping
Pi/2 BPSK spectrally shaped signal behaves like a constant envelope signal within the OFDM symbol span
3.0 dB Tx power increase over QPSK for LTE PA
Prof. Kiran Kuchi

5. Massive MIMO with Non-linear Precoding
Spectrum Efficiency:
10-60 bits/sec/Hz per sector
(Mean: 40 bits/sec/Hz/sector)
Throughput on 20 MHz:
800 Mbps per 90°sector
Cell Throughput is 3.2 Gbps
Maximum Energy Efficiency:
48 MIMO layers on 48 RF chains
Prof. Kiran Kuchi

6. Testbed and Field Trials
5G NR BS and UE connectivity
Sub 6 GHz and mmwave
Massive MIMO support
RRH+baseband+stack with CRAN
NB-IoT integrated into the BS and NB-IoT UE with sensor interface
Lab trials: July 2019
Field trials: Dec 2019
Prof. Kiran Kuchi

7. NB-IoT sensor equipment

8. Thanks!
Prof. Kiran Kuchi