5G India Initiatives PROF. KIRAN KUCHI

I IT HYDERABAD

PROF. KIRAN KUCHI 2

•India contributions to 5G standards

• Testbed and Field trials

•Indigenous 5G testbed project

Outline of Talk

30th May 2018 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

PROF. KIRAN KUCHI 4

pi/2-BPSK with Spectrum Shaping

Pi/2 BPSK spectrally shaped signal behaves like a constant envelope signal within the OFDM symbol span

BPSK data

Pi/2

Constellation

rotation

1+D

Precoder

M-point DFT IFFT CP

Subcarrier

mapping

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

•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

Testbed and Field Trials

Lab trials: July 2019 Field trials: Dec 2019

NB-IoT sensor equipment

Thanks! KKUCHI@IITH.AC.IN

PROF. KIRAN KUCHI 8