• Author / Uploaded
• JOHN GIRALDO

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5G RAN RFI Clarification

Agenda

 ZTE Introduction

 ZTE 5G Solution Highlight and Roadmap  RAN RFI Topic Discussion and Q&A

2

Leading 5G Standardization As Tier 1 Player Vice chairman of RAN3 Rapporteurs of 3 study items Editors of 3 NR specifications Co-chair of 802.11 Tgax PHY adhoc Member of SA New Standard Committee

Funding member of ZSMISG Vice chairman of TC5 Vice chairmen of WG3/WG9/WG8/WG12 Chairman of TC8 WG1 Vice chairman of TC8 WG2

4700+ 5G NR / NGC Proposals

Vice chairman of SG17 and WP3 Chairman of ITU-T SG15 WP3

Board member Vice chairman of international corporation group Vice chairman of radio access working group

Board member

Initiate Member of NFV-ITI

2000 5G Patents, 1000 SEP NO.4

3

ZTE 5G E2E Roadmap 2015

2016

2017

2018

2019

5G Trials (NSA / SA)

2020

5G Commercial Service

Access Technical Research

Trial

Commercial

Enhancement

Transport 4G & Pre5G

5G NSA

5G SA

Core IMS/VOLTE

VoWIFI

Common Core 5G Voice 1st Drop

Flexible Network Slicing (support mMTC & uRLLC) 5G Voice to full VoNR

Voice MANO

Orchestration

Service Orchestration

5G Slice Orchestration

E2E Slice Orchestration & OSS Homogenisation 4

SA - Quickly Undertake 5G Business Needs 5GC Architecture in one step; Function introduced step by step

3-6 months

With Frozen Standard Terminal is coming soonand Rapid Development of Industry, Commercially available in 19H2Scale Commercialization in 2019 SA will be Ready for Large

Optimal performance of SA scheme MM+terminal dual emission; Performance of Uplink and downlink far exceeds that of NSA 5

Agenda

 ZTE Introduction

 ZTE 5G Solution Highlight and Roadmap  RAN RFI Topic Discussion and Q&A

6

Spain Mobile Frequencies

Source: https://www.spectrummonitoring.com/frequencies/

7

5G Spectrum Strategy - Standalone

3.4-3.8 GHz (eMBB, VoNR)

700 MHz (URLLC, VoNR)

mmWave (eMBB)

• Continuous coverage • eMBB service • VoNR

• URLLC • VoNR (supplementary)

• Hotspot coverage • eMBB service

8

5G BBU Product Roadmap 2018

BBU

2019

- 15x 100MHz 64T64R @ N78 - 60x 20M 2T4R @ N28

2020 -30x 100MHz 64T64R @ N78 -120x 20M 2T4R @ N28

- ZTE ZXRAN Server - COTS Server

CU

Released

Developing

Planned

6 Modes

15 NR Cells

250 Gbps

GSM, UMTS, NB-IoT, LTE FDD, LTE TDD, 5G NR

World Leading Capacity in 2U with Own Baseband Chipset

2*25Gbps + 2*100Gbps Interface Capability

Planning

9

Virtualized IT BBU - ZXRAN V9200 Specification 1

2

3

4

Capacity

GSM: 540 TRXs UMTS: 135 CSs LTE: 90 * 20MHz 4T4R/8T8R ; MM: 15 * 20MHz 64T64; 5G NR: 15 * 100M 64T64R

S1 Bandwidth

100 Gbps

Power Consumption

Less than 1700W

Volume (H*W*D)

88.4 mm*482.6 mm*370 mm

Weight

18 kg (with full configuration)

5

1. Baseband Processing Board (VBP)/General Computing Board (VGC) 2. Power Distribution Board (VPD) 3. Power Distribution Board (VPD)/Environment Monitoring Board (VEM) 4. Switching Board (VSW) 5. Fan Array Module (VF)

10

Series Radio Units for Diversified Scenarios Main Stream 64T64R

Cost Effective 16T16R

200MHz 200W

@Macro Coverage

Sub1GHz

@Hotspot, FWA

Small Cell Outdoor

@Wide Coverage, URLLC

800MHz 4T4R

200MHz 200W

@Macro Coverage

20MHz 2T4R 2*80W

mmWave

200MHz 4T4R

@Outdoor Hotspot

Indoor 800MHz 4T4R

400MHz 4T4R

LTE 20M + NR 100M 2T2R + 4T4R

@Indoor Coverage

11

5G Macro Cell Product Roadmap 2019

2018 2017&Before

Sub 1G (2T4R)

Q1

Q2

Q3

Q4

Q2

Q3

Q3

Q4

A9621 400M 64T64R 200W A9603 200M 16T16R 200W

N78

(4T4R)

Q2

A9631* 200M 64T64R 200W

A9611 200M 64T64R 200W

(64T64R/16T16R)

N257 /N258

Q1

R9212E 35M 2T4R 2x80W

N8

Sub6G

26/28G

Q4

R9212E 45M 2T4R 2x80W

N28

N78

Q1

2020

A9623 400M 16T16R 200W

A9815 800M 4T4R 62dBm

*Size and performance enhanced

Released

Developing

Planned

Planning

12

ZTE 5G Small Cell Product Roadmap 2019

Outdoor Pad RRU / Micro BTS

Indoor Pico BTS

Indoor Qcell

2020

2021&later

R9115 200M

N78

R9105 200M 4T4R 4x5W

N258

BS9315 800M 4T4R 53dBm(EIRP)

BS9325 800M

N257 /N258

BS9305 400M 4T4R

LTE + NR

R8139 LTE 20M + NR 100M 2T2R + 4T4R 2x125mw + 4x250mw

pBrige pRRU Connection & Power Supply

R8139 NR LAA

PB1120B 8*10GE Port

Released

Developing

Planned

Planning

13

ZTE 5G RAN Feature Roadmap NR18.1 • 3GPP R15 NSA • Architecture & Networking --NSA Networking (Opt 3x) --CU/DU Split (F1 interface) • Radio Performance --DL SU-MIMO & MU-MIMO (24 Layers) --UL SU-MIMO & MU-MIMO (12 Layers) --MU-MIMO ZF for PDCCH --Coverage Enhancement Phase1 --Beam Management --UL MMSE-IRC --Scheduling based on BWP • DC&CA --DC (LTE CA+ NR Intra-band CA) --Intra-band CA Phase1 • Service --Low latency service@n78 --Voice for NSA (Opt 3x)

2018Q2

NR18.2

NR19.1

• 3GPP R15 NSA&SA • Architecture & Networking --SA Networking (Opt 2) --NR-LTE Interworking --Network Slicing • Radio Performance --Coverage Enhancement Phase2 --Beam Cooperation --Mini-slot --Grant-free Transmission --DL 256QAM --UL 256QAM(Trial)

• 3GPP R15 NSA&SA • Architecture & Networking --Het NET

• DC&CA --Inter-band CA Phase1

• DC&CA --Intra-band CA Phase2 --Inter-band CA Phase2

• Service --URLLC Phase1 --Voice for SA (Trial) --EPS Fallback

2018Q4

• Radio Performance --Coverage Enhancement Phase3 --Interference Management Phase1 --Beam Management and Cooperation @mmWave --Mixed Numerology --UL 256QAM

NR20

NR19.2 • 3GPP R15 NSA&SA • Architecture & Networking --NSA Networking (Option 7x/7a) • Radio Performance --Coverage Enhancement Phase4 --Interference Management Phase2 --Beam Cooperation Enhancement @mmWave • DC&CA --DC(NR FR1+FR2) --Intra-band CA Phase3*

• 3GPP R16 NSA&SA • Architecture & Networking --NSA Networking (Other Opt.) • Radio Performance --NOMA --DL 1024 QAM --Interference Management Phase3 --Mobility Enhancement • DC&CA --DC (LTE CA+ NR Inter-band CA) --Inter-band CA Phase3

• Service --URLLC Phase3

• Service --URLLC Phase4 --mMTC

• Service --URLLC Phase2 --Voice for SA --FWA

* Based on std development

2019Q2

2019Q4 Released

Developing

2020Q2 Planned

Planning

14

Agenda

 ZTE Introduction

 ZTE 5G Solution Highlight and Roadmap  RAN RFI Topic Discussion and Q&A

15

Coverage Enhancements by 5G NR – physical aspects

Terminal Enhancement

4G terminal

Multiple antenna Technology

Bandwidth Advantage

~20MHz

5G terminal

4G LTE 5G NR

23dBm

Single TX antenna

~100MHz

26dBm

Dual TX antenna

Multiple antenna enables flexible beam forming, decreases interuser interference and increases BS receiving sensitivity

Bandwidth advantage can be transformed to coverage advantage via allocating more resource for edge UEs and lowering inter-BS interference

16

Coverage Enhancements by 5G NR – system aspects CRS free Design

NSA

16 steams needs 16 UEs

…

Hybrid MU/SU Beamforming

• There is no always on CRS signal in 5G NR, which saves RE resource and eliminates the inter cell interference

• 2 stream SU-MIMO × 12 UEs =24 streams

SA

…

• More easy for MU pairing • Less resource consumption on control channel

24 streams needs only 12 UEs

Beamed BC and CC Channel

CSI-RS Enhancement CDM8 (FD2, TD4),32 port,Density=1 [RE/RB/port]

• Initial access, Handoff, SIB, paging can all be based on beam

• Beamed CRS-RS for beam

management;

searching, tracking and recovery;

• Power is more focused, leading less inter-channel interference;

• Maximum 32 ports; • Enhanced codebook; • Feedback on amplitude and phase; l0

l 6

l  13

17

Multi-user Simulation Results – Uplink  NR 3.5GHz provides a much better UL edge data rate due to its advantage in multi-user scheduling and interference reduction;  The average throughput of NR 3.5G is also much better than FDD 1.8G , which mainly comes from the frequency efficiency increase via MU-MIMO in cell center area;

 The advantage of capacity and anti-interference in NR 3.5GHz can easily be transformed to coverage advantage Uplink Cell Edge User Throughput (Mbps)—20UE

Uplink Cell Average Throughput (Mbps)—20UE 0,942

1

70

63,52

0,9 60

0,8

0,7

50

0,6

40

0,471

0,5 0,4

0,307

0,3

0,2

20

0,150

31,76

31,66

30

0,101

17,20 8,31

10

0,1 0

0 FDD 1.8G (2R)

FDD 1.8G (4R)

TDD 1.9G (8R)

NR 3.5G (16R) 20%

NR 3.5G (16R) 40%

FDD 1.8G (2R)

FDD 1.8G (4R)

TDD 1.9G (8R)

NR 3.5G (16R) 20%

NR 3.5G (16R) 40%

18

Multi-user Simulation Results – Downlink  DL edge data rate of NR 3.5GHz (64TR) is almost 10X compared with FDD 1.8G(2TR);  The average throughput of NR 3.5G is almost 20X compared with FDD 1.8G(2TR);

 Regarding both capacity and coverage, NR 3.5GHz is far better than FDD 1.8GHz;

Downlink Cell Edge User Throughput (Mbps)-20UE

NR Cell Average Throughput (Mbps)-20UE 13,14

14,00

1000,0

911,7

900,0

12,00

800,0

10,00

682,5

700,0

8,12

600,0

8,00

499,8

500,0

6,00

400,0

4,51

300,0

4,00 2,00

1,12

1,40

FDD 2TR

FDD 4TR

200,0

100,0

0,00

46,9

53,8

FDD 2TR

FDD 4TR

0,0

NR 16TR

NR 32TR

NR 64TR

NR 16TR

NR 32TR

NR 64TR

19

3.5GHz NR vs FDD 1.8GHz Test in Shenzhen - China Indoor/Outdoor Coverage Test 4G/5G Collocated Sites

Outdoor Coverage Test Dive Route

Site AAU&Antenna

3.5GHz 5G AAU

1.8G Antenna

 One 4G/5G collocated site for indoor coverage test and another 4G/5G collocated site for outdoor coverage drive test. 3.5GHz NR AAU and 1.8GHz FDD-LTE antenna mounted on the same pole. 20

Indoor Coverage Comparison NR 3.5G vs. FDD 1.8G  17 locations on Floor 2 and Floor 6 of the target building were selected for UL throughput test;

 Roughly 100%-150% average throughput gain from 5G NR to 1.8G FDD-LTE. UL Throughput (Mbps)

Location

UL Throughput (Mbps)

Location

21

Outdoor Coverage Comparison NR 3.5G vs. FDD1.8G FDD

NR

Distance to BS

与基站距离（米）

900 800 700 600 500 400 300 200

Distance (m)

Throughput (Mbps）

UL Throughput 100,00 90,00 80,00 70,00 60,00 50,00 40,00 30,00 20,00 10,00 0,00

100 0

Time

5G RSRP

5G UL Throughput

4G RSRP

4G UL Throughput 22

Mobility - ZTE Support NSA/SA HO defined in 3GPP Rel15 Mobility with SA Option 2 Operation

NRNR

NR->LTE

LTE->NR

Intra Frequency

√

√

√

Inter Frequency

√

√

√

Intra Frequency

√

√

√

Inter Frequency

√

√

√

Intra Frequency

N/A

√

N/A

Inter Frequency

N/A

√

N/A

Secondary Node Change

Secondary Node Add

Secondary Node Release

Intra Frequency

√

√

√

Inter Frequency

√

√

√

Inter-Master Node Intra Frequency Handover Inter Frequency

√

√

√

√

√

√

PS Handover Cell Selection and Reselection

Redirection

Mobility with NSA Option 3x NR

Operation

LTE Intra-Master Node Handover

All Option 2 mobility ítems supported in NR18.2. All Option 3x mobility ítems supported in NR 18.1

23

SA vs NSA: Overview Performance

Service





5GC introduced by SA mode will enable operators more power for service innovation in vertical industry NSA (Option 3 series) mode can only provide eMBB service









NSA terminals can only transmitted with single antenna at NR

Flexibility



SA has better uplink coverage and downlink performance than NSA SA has better user experience for DL/UL data rate NR 3.5GHz can be colocated with FDD 1.8G 2R to form a continuous SA coverage





NSA needs much more effort in existing network upgrade, Under SA NR and LTE can evolved independently while under NSA NR and LTE are tightly coupled Under NSA operator has no flexibility for vendor selection

Cost



SA is the final target while NSA is a transient architecture



With similar scale, NSA needs less CAPEX for initial deployment, but needs additional CAPEX for 2nd upgrade to SA in the future. So the ultimate TCO with NSA is bigger than SA

Inter system IoT can guarantee service continuity in SA early deployment 24

Service: 5GC enables more opportunities 

With the 5GC, operators can provide 5G end to end services experience.



5GC new features, including SBA, network slicing, finer flow based QOS, flexible networking, open API offer operator with more opportunities on 5G new services.

Service Based Architecture

Network Slicing

 EPC support new service and function through patch, relatively difficult and slow extension 5GC, service based architecture like IT, loose coupling among functions. Comply with 3GPP, customize function and open interface, easier for inter-vendor integration

 Although EPC can can support support multiple data data communication communication network (DCN), anetwork single user (DCN), single user cantoonly can onlya be connected one be connected DCN at a time.to one DCN at a5GC time.virtualizes multiple 5GC multiple logical virtualizes network slicing within logical network slicingand a one physical network, within one physical network, single user can connect to and a single user can different network slicing connect to different network simultaneously for different slicing simutaneousltfor scenarios. different scenarios.

Refined QoS  Bearer is minimum minimum size size grading of EPC QoS QoS control, control, too coarse to meet meet the the increasing finer finer QoS QoS requirement. requirement. 5GC provide a refined refined Qos Qos control with with minimum minimum size size grading of Qos flow. flow. Operators can offer offer more more precise, content content based based valuevalue-added services. added services.

Flexible UP  EPC gateway hard to tobe be gateway isis hard deployed down down to to the the edge, edge, and also with with related related billing billing and routing issues. issues.  5GC’s user plane plane gateway gateway can be deployed deployed anywhere anywhere flexibly to provide provide most most flexibly to appropriate routing for for users. appropriate routing users.

25

Performance: SA outperforms NSA Comparing to dual layer transmission for SA UE, only single layer UL

transmitting for NSA UE at 3.5GHz band, so that for NSA:   

UL coverage decays by 3dB: With only 23dBm transmitting power, UL coverage of 3.5GHz will be severely impaired. Single user UL throughput reduces by 50%: Dual layer transmission of SU-MIMO is lost at UL. Cell DL throughput drops by 10%: simultaneous MU-MIMO and SU-MIMO are not designed for NSA

NR UL LTE UL

Avg. DL Cell Throughput (Mbps)

NSA

SA

SA Gain

16TR

458.3

536.6

+17%

64TR

883.8

981.2

+11%

In NSA mode, only single layer UL transmitting, with power of 1*23dBm for UE UL cell coverage radius (m)

NSA

SA

SA Gain

2Mbps UL edge throughput @ 16TR

153

219

+43%

2Mbps UL edge throughput @ 64TR

172

247

+43%

512Kbps UL edge throughput @ 16TR

221

313

+42%

512Kbps UL edge throughput @ 64TR

249

353

+42%

DL Beamforming DL forged Beamforming

In NSA mode, with only single layer UL transmitting for UE, performance of DL beam forming is severely impacted, especially the overall performance of MU-MIMO plus SU-MIMO

NR 3.5GHz, TDD DL:UL=4:1

26

Performance: Requirements for typical 5G services Service type

Bandwidth

Latency

NSA Feasibility

SA Feasibility

Remark

HD video(4K)

18Mbps

10ms

4K will be the dominant video format in 5G era

VR/AR(4K)

45Mbps

16ms

These requirements are only based on 4K, more stringent requirements may be needed for higher resolution

V2X(including autonomous driving)

100Mbps

3ms

Requirements for IoV are very complicated, here only refers to L5 level autonomous driving

Remote control

100M~1G

20ms

Includes mechanic engineering, drone, remote surgery

Intelligent manufacture

SA)

4G eNB Upgrade/mo dification

new NR

Common cost

√

Two step SA (NSA>SA)

√ √

√

Engineering (NSA->SA Optimization)

One step Approach

new transmission or expansion

Cost Item

NR Equipment New 5G NR



EPC upgrade (interoperability)

Cost category

One step SA

√ √

SW upgrade/expansion (NSA DC)

√ √

5GC Equipment

√

√

Engineering (Installation/Optimization)

√

√

SW upgrade (4/5G interoperability)

√

√

SW upgrade/expansion (NSA DC) Transmission expansion/ new (5G)

Transmission modification (4/5G DC) Transmission modification (NSA->SA)

√ √

√

√ √

29

ZTE 5G RAN Split Solution Low layer DU/AAU split

LowPHY

RF

Option8

HighPHY Option7

LowPHY

RF

Split interface between CU&DU defined by 3GPP LowMAC Option6

HighPHY

HighMAC Option5

LowMAC

Option4 HighMAC

HighRLC

LowRLC

Option2

Option3 LowRLC

PDCP

HighRLC

RRC

Option1

PDCP

Data

RRC

Data

• BBU

DU CPRI

RRU

eCPRI

AAU

•

eCPRI is born with 5G to solve CPRI bandwidth issue, it’s a part of 5G RAN split and it defines demarcation point between AAU and DU Comparing with option 8 used in CPRI, Option 7 is a mainstream choice for ZTE eCPRI split in industry. 30

ZTE 5G RAN Split Solution Low layer DU/AAU split

LowPHY

RF

Option8

RF

HighPHY Option7

LowPHY

Split interface between CU&DU defined by 3GPP LowMAC Option6

HighPHY

HighMAC Option5

LowMAC

HighRLC

LowRLC Option4

HighMAC

Option2

Option3 LowRLC

PDCP

HighRLC

RRC

Option1

PDCP

Data

RRC

Data

Cell 5G NR Massive MIMO

Split Option

Bandwidth (MHz)

Ant. Port

Layers

Fronthaul Requirements

Option 8

100

64

16

208 Gbps

Option 7-2 (Layer mapping)

100

64

16

25 Gbps

31

Multiple Options for Telefonica Flexible Deployment Cloud CU C-RAN

D-RAN

Case 1

Case 2

Case 3

Integrated CU/DU

Integrated CU/DU/AAU

Centralized DU/CU

EPC/5GC

EPC/5GC

EPC/5GC

Case 4

Case 5

Cloud CU, Centralized DU Cloud CU, Integrated DU/AAU EPC/5GC

EPC/5GC

Cloud CU

Cloud CU

Centralized CU+DU

Centralized DU

AAU

AAU

CU+DU AAU

AAU+CU+DU

AAU+DU 32

CU/DU Deployment Solution for Different Services CU Cloud

mMTC： • • •

huge connections latency sensitive cost sensitive

5G AAU

DU

CU

CU Cloud

AAU/CU/DU integrate 5G AAU+DU

CU

eMBB： •

wide bandwidth

CU/DU integrate low latency 5G AAU

URLLC： • •

low latency high reliability

DU+CU

AAU/CU/DU integrate low latency 5G AAU+DU+CU

Site Room

Edge DC

Regional DC 33

Synchronization Standard

Frequency

Phase

FDD LTE

0.05ppm

NA

TD-LTE

0.05ppm

3us

5G

0.05ppm

3us GNSS

Baseb and unit

GPS: Most common

1588V2: No extra cable is needed

front haul

RF unit

Remote GPS: option

34

Synchronization

Grandmaster Back haul

1588

GPS

Baseband unit

front haul

RF unit

|T|P/S-CSCF->IP-SM-GW->SMSC • MT call: SMSC->IP-SM-GW->P/S-CSCF->UE This solution is the same as 4G SMS over IMS.

Due to co-existence of different types of UEs and APPs, two solutions may both exist. For voice-centric UEs, SMS over IP is the best choice, which implements both voice and SMS services. For data-centric UEs, SMS over NAS is the best choice, which allows UEs not to load the IMS client and simplifying the protocol stack for UEs.

44

ZTE ElasticNet UME R18 Architecture NMS / 3rd Party System Unified Portal Provisioning

ZTE ElasticNet UME R18

TOPO Management

Monitoring Fault Management

RAN Configuration Management

Performance Management

Inventory and Hardware Management

RAN Supervision Dashboard

Service Provisioning and Upgrading

...

Signaling Trace Analytics

...

NR

Security

System

Northbound and Openness

UME 3A Center

UME Health Check

Northbound Adapter Function Log Management UME Setting Center

...

Application data Backup Recovery ...

Document

...

DocLite

Open API Service

...

...

LTE 45

ZTE ElasticNet UME Main Functions & Solutions •

Fault Management

•

Configuration Management

•

Topology Management

•

Performance Management

•

RAN Supervision Dashboard

•

Inventory Management

•

Software Management

•

Security Management

•

Signaling Trace Management

•

NBI Solution

•

VNF Management

•

Integration solution with MANO

Main Functions

Main Solutions

•

Security Solution

•

High Availability Solutions (HA, BR, GR)

46

gNB Commissioning Workflow – Plug & Play

gNB Power on

IP Connection Setup

TLS Channel Setup to UME

Self Commissioning

gNB Self Test

47

gNB Commissioning Tool - LMT Site (gNB) Debug

EMS Server (UME)

ETH5

Router/Switch

Ethernet Port

Ethernet Port

NE Test Computer （OS: Windows）

Site-Commissioning Mode

Scenario Description

Mode 1（Use WebLMT to commission a site at local end）

Data file, version packet, commissioning regulation file in near end( laptop); The transmision between EMS(UME) and the gNB.

Mode 2（Use WebLMT to commission a site at remote end）

Data file, version packet, commissioning regulation file in remote end(UME FTP server); No DHCP service.

48

ZTE’s Device Roadmap 2018H2

Hand set

SmartPhone Engineer Sample Sub6G NSA 8150+X50 201812

MBB

Indoor CPE Engineer Sample Sub6G NSA 8150+X50 201812

2019H1

2019H2

SmartPhone Engineer Sample Sub6G NSA/SA 8150+X55 201909

Outdoor CPE Engineer Sample NSA Sub6G/mmW 8150+X50 201906

49

ZTE’s RAN IoDT Plan 2018

2019 NSA CS

Sept

Oct

Nov

Dec

SA TQ

Jan

Feb

Mar

Apr

May

Jun

Lab

Lab

Lab

Field

50

Energy Consumption Spec Item

BBU

AAU

RRU

V9200

A9611

A9603

A9815

R9212E

Voltage Range

-48V DC -40V DC ~ -57V DC

-48V DC -37V DC ~ -57V DC

-48V DC -37V DC ~ -57V DC

-48V DC -37V DC ~ -57V DC

-48V DC -37V DC ~ -57V DC

Typical Power Consumption W (25℃)

325W

980W

500W

450W

228W

Peak Power Consumption W (35℃)

650W

1,150W

630W

455W

490W

325W

980W

500W

450W

228W

-10~+55

-40~+70

-40~+55

-40~+55

-40~+55

Power Supply

Heat dissipation for indoor equipment Temperature Range(℃)

51

Power Saving Features

Baseband processors automatical shut down based on traffic load Automatic shut down of 5G NR layers for multi-layer 5G NR sites

Automatic shut down of Cell In a SRAN node with NR and 4G deployed

52

4G Site Evolution to 4G/5G add V9200 for 5G

V9200 in full mode

5G uses new spectrum Add 5G RU/AAU

…

5G uses new spectrum Add 5G RU/AAU

…

2G/3G/4G RRU B8200

2G/3G/4G RRU V9200 V9200

SDR BBU and IT BBU give flexible and suitable choices for 5G evolution!

53

V9200 supports 4G and 5G Phase I: GULN+NR

B8200

+

+

+ 2G/3G/4G RRU

Phase III: All 5G

Phase II: GULN+NR

5G AAU

2G/3G/4G RRU

5G AAU V9200

V9200

Existing RRUs upgrade SW to support 5G

5G AAU

V9200

B8200

•Legacy B8200 supports GULN •Introducing V9200 and 5G RRU to support 5G

•Connect existing RRUs to V9200 to support GULN + 5G NR •Legacy B8200 can be reused in other places

•Existing ZTE 6x/7x RRU’s, and beyond, can support NR through SW upgrade. Panama

R8862A/R8872A

Ecuador

R8862A/R8872A

Nicaragua

R8872A

54

Use Cases and Deployment Strategy (1/ 2) Use Case

Deployment Strategy

Rationale & Comment

mmWave FWA

Option 3 or DC with NR in low bands

Low coverage, low mobility requirements.

AR/VR

eMBB slice in 3.5 GHZ, local CDN (MEC)

Latency less than 5ms to mitigate the “vertigo” effect -> CDN introduction.

URLLC

NR FDD in sub1GHz band (700 MHz)

FDD NR as coverage layer, providing URLLC & voice as primary services. Latency requirement may be as low as 0.5 ms E2E (tactile interaction).

Massive IoT

NR FDD in sub1GHz band (700 MHz), although casuistics can be large

Introduction of a new RRC mode, RRC connected inactive situation.

In general, NW slicing is regarded as a basic enabler for multiple use cases re-inforcing the option 2 as primary architecture option. 55

Use Cases and Deployment Strategy (2/ 2) CU Cloud

mMTC： • • •

huge connections latency sensitive cost sensitive

5G AAU

DU

CU

CU Cloud

AAU/CU/DU integrate 5G AAU+DU

CU

eMBB： •

wide bandwidth

CU/DU integrate low latency 5G AAU

URLLC： • •

low latency high reliability

DU+CU

AAU/CU/DU integrate low latency 5G AAU+DU+CU

Site Room

Edge DC

Regional DC 56

Ultra-Reliable and Low Latency Requirement for URLLC Use case attribute

V2N for mid/ long-term environment modelling

V2X for short term environment modelling (sensor sharing)

V2X for cooperation (coordinated control)

Latency

Not critical (100 ms end-toend seems to be tolerable)