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5G技术研究-NOMA in 5G New Radio (NR) of 3GPP

3GPP

NOMA

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3GPP关于5G的NOMA技术研究的文档：NOMA in 5G New Radio (NR) of 3GPP，ICC’18 NOMA Workshop, Kansas City, USA

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NOMA in 5G NR of 3GPP

Presentation · May 2018

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Yifei Yuan

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Dr. Yifei Yuan

May 20, 2018

NOMA in 5G New Radio (NR) of 3GPP

ICC’18 NOMA Workshop, Kansas City, USA

• Motivations and scenarios

• Basic techniques

• Key auxiliary designs

• Progress in 3GPP standardization

CONTENTS

Major targets:

– Light connection

– Efficient transmission and high capacity

– Cost-effective receivers

Light control & high capacity/connectivity

NOMA transmission

gNB

DL Synch.

Small packet

RACH Procedure

Power saving

state

Connected state/ULGrant /

Transmission

Success

Fail

Small packet

NOMA

Power saving

state

lighter

connection

Random Access Preamble

RAR

Message 4

gNB

L2/L3 message

UL Grant

DL Synch.

Data Transmission

Grant-free NOMA vs. Grant-based for Uplink Small Data

Solution \Statistics Grant-free Grant-based

Avg. delay (ms) 4.4 9.1

Signaling overhead (%) 15% 53%

Pwr consumption (µJ/s) 47 677

-3

-2

-1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Packet inter-arrival time - Uplink(s)

cdf

Heavy background: UL inter-arrival distribution

-3

-2

-1

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

interarrival time(s) - Uplink

cdf

Empirical CDF

Solution \Statistics Grant-free Grant-based

Avg. delay (ms) 5.2 5.9

Signaling overhead (%) 11% 7%

Pwr consumption (µJ/s) 321 2,142

Light background traffic load

Heavy background traffic load

Grant-free NOMA  reduced delay, signaling overhead and terminal power

consumption, esp. for light traffic

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