Apr 26, 2016

SCMA with Grant-Free

Transmissions demo

Page 2

SCMA Based Grant Free focus mainly on the 2nd and 3rd scenarios

Page 3 Huawei proprietary Page 3

What is Sparse Code Multiple Access (SCMA)

Non-orthogonal sparse spreading

+

Code domain superposition

+

Multi-dimensional modulation

A Novel Code Domain Non-orthogonal Multiple Access

SCMA

=

Better spectrum efficiency

Lower detection complexity

Lower PAPR

Page 4

SCMA Grant free Prototype Hardware

TM500

Service Server

RRU

Cloud BB

PC for UI

Service UI

Page 5

SCMA Grant free demo

The active UE

Latency calculation

The active UE

number

The probability of the

successful detection

The detected UE

number

Poisson distribution UE

The detected UE number

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