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Research Report on Industry SLA Requirements for E2E 5G Network Slicing September,2020 China Academy of Information and Communications Technology

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Research Report on Industry SLA Requirements for E2E 5G Network Slicing

September,2020

China Academy of Information andCommunications Technology

Network sl ic ing is one of the most promising

a n d p o w e r f u l 5 G t e c h n o l o g i e s , c a p a b l e o f

addressing the d ivers i fy ing serv ice needs of

e n o r m o u s i n d u s t r i e s a n d f a s t t r a c k i n g t h e

d ig i ta l t rans format ion o f soc ie ty in genera l .

H o w e v e r, u n d e r s t a n d i n g i n d u s t r y n e e d s i s

k e y t o u n l e a s h i n g t h e i n f i n i t e p o t e n t i a l o f

network sl icing. This report analyzes industry

requirements, with healthcare, manufacturing,

and energy sectors as representatives; proposes

an innova t i ve mode l accord ing to Mas low 's

H ie ra rchy o f Needs to c lass i f y connec t i v i t y

requirements into deterministic services, security

and t rus twor th iness , and se l f -management ;

and defines an SLA palette accordingly, helping

indust ry p layers unders tand SLA leve ls and

match them with services. We hope this report

can insp i re the es tab l i shment o f eva lua t ion

systems and measurement standards for network

connectivity, faci l i tat ing the digital upgrade of

industries.

Foreword

CONTENTS

01 Why 5G Slicing SLA Needs to Be Standardized?

02 Understanding Connectivity SLA Requirements with Maslow'sHierarchy of Needs

03 SLA Palette for 5G Network Slicing

04 Healthcare Slices and SLA Levels

05 Manufacturing Slices and SLA Levels

06 Electric Power Slices and SLA Levels

07 5G Slice Palette Benefits: Industry Engagement andConnectivity Evaluation

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Why 5G Slicing SLA Needs to Be Standardized?

Over the pas t year, 5G ne twork s l i c ing has

m a d e a s i g n i f i c a n t i m p a c t i n t h e t e l e c o m

indus t ry. Opera to rs and equ ipment vendors

unders tand the t remendous benef i ts o ffered

by network slicing, and are determined to take

full advantage. Consequently, an array of white

papers have been released, which expand on

network slicing technologies and architectures

and delve deep into its application benchmarks.

These white papers serve as valuable references

for the fur ther developing of network s l ic ing;

however, the technica l deta i ls conveyed are

quite complex and difficult for industry customers

to fol low, and the industry-specif ic use cases

provided do not lend themselves well to simple

application in other f ields by service suppliers

and device vendors. As such, this paper centers

on c lass i fy ing indust ry SLA requ i rements a t

different levels, aligning varied service demands

with specific technology implementation.

Clear SLA requirements and levels are crucial

to both network sl ic ing service providers and

consumers, so that both parties can jointly plan

01Why 5G Slicing SLA Needs to Be Standardized?

an appropriate set of network capabi l i t ies for

certain service scenarios. In order to achieve

th is , we need to recogn ize and unrave l the

following issues:

• Industry players do not have a common

understanding of network slicing.

While a batch of industry applications have been

verified on SA networks, industry players suffer

f rom a lack of knowledge regard ing network

slicing capabilities. As a result, they are unclear

abou t how to pack such capab i l i t i es i n to a

network slice suitable for their industry sectors

and how to purchase a we l l -des igned s l ice ,

let a lone see the business opportuni t ies and

benefits that go along with network slicing.

• Operators do not sufficiently involve

industry partners when defining the SLA.

A well-rounded SLA framework must be able to

support all professional applications in different

industry segments, and i t cannot be def ined

by operators alone. Joint efforts with industry

customers, especia l ly leading enterpr ises in

each domain, are indispensable to formulate

01Page

Why 5G Slicing SLA Needs to Be Standardized?

a comprehens i ve , c l ea r, and adap t i ve SLA

framework.

• Current slice classification and SLA

levels are not ideal for efficient slice

management.

Network capabi l i t ies need to be orchestrated

with fine-grained control for flexible combination,

but too f ine a granular i ty wi l l c r ipp le s l ic ing

management. The operat ional complexity and

service requirement diversity must be balanced

v ia c lear SLA speci f icat ions and streaml ined

service quality management processes, so that

both service providers and consumers can seek

a cost-effective and beneficial slicing solution.

Such a solution will be the product of continuous

verification and iteration in the market.

As such, research on SLA levels for 5G network

slicing is of vital importance, as it will facilitate

t he ope ra t i on and managemen t o f ne two rk

slicing and benefit both operators and industry

players. To be specific:

• Appropriate SLA levels help industry

customers to understand and leverage

network slices.

Well-defined SLA metrics will effectively reflect

serv ice types and di fferences. Standard SLA

levels combined wi th these metr ics can help

industry customers efficiently select ideal slices

which f i t into industry characterist ics, thereby

avo id ing unnecessary commun ica t ions w i th

operators or service providers. Industr ies can

reap the benefits provided by 5G technologies

and applications in no time.

• Standard SLA enables operators to better

serve industries.

T h r e e m a i n b e n e f i t s e x i s t i n t h i s c o n t e x t :

First, by standardizing the SLA, operators wil l

gain valuable insights into the 5G application

requirements of different industries, based on

which operators can tai lor sl ices favorable to

most applicable fields. In addition, the standard

SLA framework wil l contribute to lower OPEX.

Opera to rs can p rov ide d i f f e ren t quo tes fo r

services at different SLA levels and negotiate

s e r v i c e p r i c e s a n d a s s u r a n c e l e v e l s w i t h

customers via a communication platform, while

network sl ices can be accurately and f lexibly

customized with cost-beneficial O&M. Last but

not least, the SLA framework helps yield higher

s l i ce serv ice qua l i ty by o f fe r ing sys temat ic ,

rat ional cr i ter ia to evaluate di fferent types of

sl ices. Consequently, operators can precisely

monitor and control services on each slice.

• SLA levels serve as valid reference for

industry authority decision-making.

Security is a common concern among industries

t ha t cons ide r 5G as a ma jo r p i l l a r o f t he i r

bus iness . Indus t ry au thor i t i es a re u rged to

establ ish overarching secur i ty speci f icat ions,

encompass ing every th ing f rom 5G networks

to termina ls and data, and to set up secure

i n t e r c o n n e c t i o n m e c h a n i s m s b e t w e e n t h e

t e l e c o m i n d u s t r y a n d o t h e r 5 G a p p l i c a b l e

v e r t i c a l s . T h e q u a n t i t a t i v e m e t r i c s a n d

industry standards of 5G network capabi l i t ies

a re s i gn i f i can t i npu t s f o r de f i n i ng secu r i t y

speci f icat ions on 5G s l ic ing. For example, i f

network s l ic ing is leveraged to bui ld a smart

grid, the power grid supervision departments can

effectively evaluate whether the network metrics

meet industry standards and security isolation

requirements, with clear SLA levels as reference.

02Page

A b r a h a m M a s l o w w a s a n o u t s t a n d i n g

psychologist. He proposed a model for analyzing

innate human needs which were depicted as

hierarchical levels within a pyramid. Individuals

must sat is fy needs at the lower leve l o f the

hierarchy before progressing to those higher up,

and this model has become a general-purpose

theory used to c lass i fy needs. Accord ing to

Mas low 's mode l , t he indus t ry requ i rements

on 5G ne tworks can a lso be c lass i f i ed in to

a h i e ra r chy o f needs . F rom bo t t om to t op ,

these are: deterministic services, security and

trustworthiness, and self-management.

• Deterministic services

D i f f e r e n t u s e r g r o u p s i m p o s e d i f f e r e n t

requ i rements on bandwid th , la tency, packet

loss rate, jitter, service availability, and service

provisioning efficiency. To ensure deterministic

services for a certain user group, in addit ion

to SLA assurance , d i f fe ren t ia ted res t r i c t ion

measures such as l imit ing the traff ic rate for

po in t - to-po in t serv ice users may need to be

taken. In addit ion, AI- infused edge computing

02and posit ioning must be provided from end to

end for available services.

• Security and trustworthiness

Some industr ies have str ingent requirements

on network secur i ty and re l iab i l i ty, and may

demand a dedicated logical network in order to

secure their services with isolated resources.

They may further require data be encrypted and

authenticated, preventing services on their slices

from being tampered with. Such security rules

will be incorporated into the service systems of

industry customers, making these systems more

intelligent and adaptive.

• Self-management

Industry customers increasingly monitor KPIs,

such as latency and bandwidth, and configure

network sl ices by themselves. They may even

expect to use their own network devices, such as

core gateways and edge computing equipment.

Understanding Connectivity SLA Requirements with Maslow's Hierarchy of Needs

Understanding Connectivity SLA Requirements with Maslow's Hierarchy of Needs03Page

Self-management

Security and trustworthiness

Deterministic services

Control

Management

Monitoring

Encryption Authentication

Isolation

Availability

Computing

Packet loss

Bandwidth

PositioningProvisioning

Jitter

Latency

In our survey, we selected bandwidth and latency as two major dimensions to reflect the deterministic

levels of services. The tests conducted in Zhejiang Unicom's 5G slicing project at a medical community

coincided with our selection, as the results showed that these two factors result in the greatest impact

on user experience. The table below lists the bandwidth and latency for different experiences with

image zoom and rotation in 3D image reconstruction.

Experience Bandwidth (Mbit/s) Latency (ms)

Smooth, with no noticeable latency 20 10

Slight latency 10 110

Obvious latency 3 179

The requirements for security and trustworthiness are primarily fulf i l led by isolating resources at

different levels, and those for self-management can be determined by the management capabilities

of industry customers. As the layered model becomes more widely applied, more dimensions can be

introduced to categorize and evaluate SLA needs.

Understanding Connectivity SLA Requirements with Maslow's Hierarchy of Needs 04Page

03SLA Palette for 5G Network Slicing

To help industry customers easily understand SLA levels and match them with their service needs, we

have defined a palette to illustrate 5G slicing SLA requirements.

The requirements for bandwidth, latency, security and trustworthiness, and self-management are

arranged into levels B1-B5, T1-T5, S1-S2, and M1-M3, respectively. Customers can select levels to set

up an SLA for their services; for example, the SLA requirements for video monitoring at a power grid

can be a combination of B3, T2, S1, and M3.

Service

Description

(Applicable Scenario, Solution

Maturity, User Quantity, etc.)

SLA Requirements

Deterministic Services Security and Trustworthiness Self-Management

Bandwidth Per User (Mbit/s) Latency (ms)

Logical isolation: Resources are shared, and scheduled to services based on priorities.

Physical isolation: Resources are dedicated, and isolated by tunnel or timeslot.

Visualized: Service status and user information are intuitively displayed.

Manageable: Services can be modified, and their life cycles can be efficiently managed.

Self-operation: Self-operation can be implemented over well-defined APIs.

B1 B2 B3 B4 B5 T1 T2 T3 T4 T5 S1 S2 M1 M2 M3

1-10 10-20

20-50

50-100 >100 50-

10020-50

10-20 5-10 <5 Logical

isolationPhysical isolation Visualized Manageable Self-

operation

A

B

We have used this palette to conduct surveys in three major industries — healthcare, manufacturing,

and energy. The following sections illustrate the SLA levels in these fields.

SLA Palette for 5G Network Slicing05Page

04Healthcare Slices and SLA Levels

The SLA requirements of the healthcare industry apply to three types of slicing: the diagnosis guidance

slice based on real-time interaction using images and videos, the remote operation slice based on

force feedback, and the monitoring and nursing slice based on wireless collection.

SLA Levels of Healthcare Slices

Deterministic Services Security and Trustworthiness Self-Management

B1 B2 B3 B4 B5 T1 T2 T3 T4 T5 S1 S2 M1 M2 M3

KPI 1–10 10–20

20–50

50–100

> 100

50–100

20–50

10–20 5–10 < 5 Logical

isolationPhysical isolation Visualized Manage-

able Operable

Diagnosis guidance slice based on real-time interaction using images and videos

Y Y Y Y

Remote operation slice based on force feedback

Y Y Y Y

Monitoring and nursing slice based on wireless collection

Y Y Y Y

Healthcare Slices and SLA Levels 06Page

• Diagnosis guidance slice based on real-

time interaction using images and videos

(B3, T2, S1, and M1)

T h i s t y p e o f s l i c e p r o v i d e s s e r v i c e s s u c h

a s t e l e c o n s u l t a t i o n s a n d w i r e l e s s s u r g e r y

demonst ra t ions , and main ly t ransmi ts v ideo

streams and examination images in real time.

The user bandwidth level is B3 (20–50 Mbit/s).

Services such as real-time teleconsultations and

surgery demonstrations rely on the transmission

of HD videos, and some services also require the

backhaul of medical operation images from the

patient's side. As such, network bandwidth must

reach 10–30 Mbit /s. In terms of f i le transfers

such as pathological sections, a 1 GB fi le can

be transferred within 3 minutes in cases where

bandwidth reaches 50 Mbit/s and the theoretical

transmission rate is 6.25 MB/s.

The latency level is T2 (20–50 ms). Video stream

appl icat ions, such as te leconsul tat ions, may

experience latency at the following three points.

First, stream pushing: Latency occurs when the

col lected audio and v ideo data is processed

and encoded. Second, st ream pushing using

a specif ied streaming media protocol: Latency

occurs due to the impact of a used protocol

on a certain network condit ion. Third, stream

pu l l ing: Latency occurs when the aud io and

video data stream is pul led and decoded. As

such, live streams are not sensitive to network

la tency. However, te leconsu l ta t ion invo lves

mutual interaction, and excessively high latency

wil l severely impact the interactive experience

offered. Consequently, a network latency of less

than 50 ms is recommended for teleconsultation

services.

The iso la t ion leve l i s S1 ( log ica l i so la t ion) .

As teleconsultat ion does not typical ly involve

s e n s i t i v e d a t a , o n l y l o g i c a l i s o l a t i o n i s

performed, and network resources can be shared

with other users and services.

The management level is M1 (visualized). Users

in the hea l thcare indust ry are not equ ipped

w i th p ro fess iona l know ledge o f SLA-based

slicing. According to their feedback, they expect

telecom operators to be responsible for s l ice

management, while hospitals can access slice

status, user information, and SLA reports.

• Remote operation slice based on force

feedback (B2, T5, S2, and M1)

This type of s l ice prov ides serv ices such as

remote surgery and ultrasonic examination, and

primarily transmits data such as patient surgery

i m a g e s , B - m o d e u l t r a s o n i c p r o b e i m a g e s ,

control signals from operation rockers, and force

feedback tactile signals.

The user bandwidth level is B2 (10–20 Mbi t /

s). As low-latency applications such as remote

surgery and B-mode u l t rason ic examinat ion

require real-time backhaul of images of patients

and p robes , ne twork bandwid th mus t reach

approximately 20 Mbit/s to transmit stutter-free

video streams.

The latency level is T5 (less than 5 ms). Remote

surgery is currently performed based on human-

mach ine in te rac t ion . Wi th the he lp o f v ideo

backhaul and medical robots, medical experts

remotely assist onsite doctors in planning and

implementation before and during a surgery. As

human-machine interaction can lead to latency

with a human's response, the network latency

Healthcare Slices and SLA Levels07Page

requirements should be lowered. Upon receiving

an onsite doctor's confirmation, a remote expert

per forms the next s tep, wi th latency ranging

from 10 ms to 100 ms. However, actual remote

surgery is performed based on machine-machine

interaction. Specifically, a remote expert directly

opera tes a robo t i c a rm to pe r fo rm surgery.

This type of surgery requires network latency

to be less than 5 ms to ensure synchronized

operations at the local and remote ends.

The isolation level is S2 (physical isolation). This

type of sl ice must be physical ly isolated from

other services and requires exclusive resources

(E2E hard slice) to prevent surgery from being

affected by factors such as external network

f l uc tua t ion . The i so la t i on l eve l mus t be S2

(physical isolation) to ensure network security

and high performance.

The management level is M1 (visualized). Users

in the hea l thcare indust ry are not equ ipped

w i th p ro fess iona l know ledge o f SLA-based

slicing. According to their feedback, they expect

telecom operators to be responsible for s l ice

management, while hospitals can access slice

status, user information, and SLA reports.

• Monitoring and nursing slice based on

wireless collection (B1, T1, S1, and M1)

This type of s l ice prov ides serv ices such as

wireless monitor ing and mobi le ward rounds,

and mainly transmits data such as patients' vital

signs, electronic medical records, and doctors'

orders.

The user bandwidth level is B1 (1–10 Mbit/s). B1

will suffice as multi-terminal access applications

are s imi la r to IoT connect ions. Add i t iona l ly,

the serv ice data does not inc lude images or

videos, the data volume is small, and the data

transmission is infrequent.

The la tency leve l i s T1 (50–100 ms) . Mul t i -

terminal access applications are used to monitor

da ta such as pat ien ts ' v i ta l s igns . The on ly

requirement is to ensure that the data can be

transmitted to medical personnel. As such, these

services are insensitive to latency.

The isolation level is S1 (logical isolation). Data

transmission of information such as vital signs

and patho logy requi res log ica l iso la t ion and

secure encryption authentication (slice resources

can be shared).

The management level is M1 (visualized). Users

in the hea l thcare indust ry are not equ ipped

w i th p ro fess iona l know ledge o f SLA-based

slicing. According to their feedback, they expect

telecom operators to be responsible for s l ice

management, while hospitals can access slice

status, user information, and SLA reports.

Healthcare Slices and SLA Levels 08Page

05Manufacturing Slices and SLA Levels

Based on SLA requirements, manufactur ing sl ices can be high-upl ink-bandwidth auxi l iary non-

production slices, massive-information-based auxiliary production slices, and high-reliability precise-

control core production slices.

SLA Levels of Manufacturing Slices

Deterministic Services Security and Trustworthiness Self-Management

B1 B2 B3 B4 B5 T1 T2 T3 T4 T5 S1 S2 M1 M2 M3

KPI 1–10 10–20

20–50

50–100

> 100

50–100

20–50

10–20 5–10 < 5 Logical

isolationPhysical isolation Visualized Manage-

able Operable

High-uplink-bandwidth auxiliary non-production slice

Y Y Y Y

Massive-information-based auxiliary production slice

Y Y Y Y

High-reliability precise-control core production slice

Y Y Y Y

• High-uplink-bandwidth auxiliary non-production slices (B3, T2, S1, and M1)

This type of slice applies in the transmission of big video data, and predominantly involves HD video

monitoring and HD video quality monitoring. It features:

Manufacturing Slices and SLA Levels09Page

Bandwidth level B3 (20–50 Mbit/s): As 4K video

monitor ing is widely used in enterpr ises, and

there are currently no requirements for 8K video

monitoring, the maximum bandwidth is 40 Mbit/s.

La tency leve l T2 (20–50 ms) : The to le rab le

latency is approximately 50 ms.

Isolat ion level S1 ( logical isolat ion): As video

monitoring slices do not involve sensitive data

relat ing to their corresponding services, only

l og i ca l i so la t i on i s requ i red , wh i l e ne twork

resources a re shared w i th o the r use rs and

services.

Management level M1 (visualized): Enterprise

customers are unfamiliar with slicing SLA, and

instead require the v iewing of s l ice statuses

and user information, in addition to SLA reports.

Such customers have operators manage slices,

rather than util izing self-management and self-

operation.

• Massive-information-based auxiliary

production slices (B1, T2, S1, and M1)

This type of slice applies in massive connection

scenar ios, and predominant ly involves basic

device information collection and environment

monitoring. It features:

Bandwidth level B1 (1–10 Mbi t /s) : In factory

environment monitoring and device information

collection, the uplink and downlink bandwidths of

a single node are less than 200 kbit/s. As only a

small amount of control data is sent to collection

devices in the downlink, bandwidth requirements

are not high.

Latency level T2 (20–50 ms). System control

da ta i s sens i t i ve to la tency, wh ich mus t be

ensured at less than 50 ms as a result.

Isolat ion level S1 ( logical isolat ion): As video

monitoring slices do not involve sensitive data

relat ing to their corresponding services, only

l og i ca l i so la t i on i s requ i red , wh i l e ne twork

resources a re shared w i th o the r use rs and

services.

Management level M1 (visualized): Enterprise

customers are unfamiliar with slicing SLA, and

instead require the v iewing of s l ice statuses

and user information, in addition to SLA reports.

Such customers have operators manage slices,

rather than util izing self-management and self-

operation.

• High-reliability precise-control core

production slices (B1, T4, S2, and M2)

This type o f s l i ce app l ies in remote cont ro l

scenarios, and predominantly involves control

data transmission. It features:

Bandwid th leve l B1 (1–10 Mbi t /s ) : Bo th the

uplink and downlink bandwidths are lower than 2

Mbit/s in remote control scenarios.

Latency leve l T4 (5–10 ms) : Prec ise dev ice

cont ro l requi res a la tency lower than 10 ms

a n d h i g h p a c k e t r e l i a b i l i t y. A c o n t r o l d a t a

t ransmiss ion er ro r w i l l suspend produc t ion ,

which leads directly to financial losses.

Isolation level S2 (physical isolation): In remote

contro l scenar ios, s l ices must be completely

iso la ted and protected f rom data tamper ing,

leakage, or damage to ensure data integrity and

stability.

Management level M2 (manageable): Enterprise

customers can modify and terminate services,

manage UE lifecycles, and perform simple fault

diagnosis.

Manufacturing Slices and SLA Levels 10Page

06Electric Power Slices and SLA Levels

The SLA requirements of the electric power industry apply to three types of slices: inspection slice

based on HD videos, power grid control slice based on low latency, and monitoring slice based on

wireless collection.

SLA Levels of Electric Power Slices

Deterministic Services Security and Trustworthiness Self-Management

B1 B2 B3 B4 B5 T1 T2 T3 T4 T5 S1 S2 M1 M2 M3

KPI 1–10 10–20

20–50

50–100

> 100

50–100

20–50

10–20 5–10 < 5 Logical

isolationPhysical isolation Visualized Manage-

able Operable

Inspection slice based on HD videos

Y Y Y Y

Power grid control slice based on low latency

Y Y Y Y

Monitoring slice based on wireless collection

YY

Y Y

• Inspection slice based on HD videos (B3, T2, S1, and M3)

This type of sl ice mainly provides big video services, and appl ies to scenarios such as mobi le

inspection of power transmission lines, comprehensive video monitoring of power distribution rooms,

robot inspection of substations, and AR/VR-based intelligent inspection.

Electric Power Slices and SLA Levels11Page

The user bandwidth level is B3 (20–50 Mbit/s).

The required bandwidth var ies depending on

the type of video. For example, AR inspection

requires at least 30 Mbit /s bandwidth, drone/

robo t i nspec t i on requ i res a t l eas t 2 Mb i t / s

bandwidth, and video monitoring requires 4–10

Mbit/s bandwidth.

The latency level is T2 (20–50 ms). Inspection

applications do not have high requirements on

latency, with the latency of AR inspection less

than 50 ms, that of drone/robot inspection less

than 300 ms, and that of video monitoring less

than 200 ms.

The iso la t ion leve l i s S1 ( log ica l i so la t ion) .

Power grid appl icat ions are used for services

in the production control area and management

information area. Video monitoring applications

a r e u s e d f o r s e r v i c e s i n t h e m a n a g e m e n t

in fo rmat ion a rea and need to be phys ica l l y

i s o l a t e d f r o m p u b l i c n e t w o r k s e r v i c e s ,

applications of other industries, and services in

the power production control area. In addition,

services in the product ion management zone

(security zone III) need to be logically isolated

from those in the information management zone

(security zone IV) in the same area. Considering

the balance between service requirements and

network construction costs, it is recommended

that the 5G core network and bearer network

implement physical isolation, and that the RAN

implement the resource preemption mechanism

based on priority scheduling to achieve logical

isolation.

The management level is M3 (operable). Electric

power inspection applications involve mult iple

areas, and self-defined user group management,

new service rollout and commissioning, self-help

troubleshooting, and access permission control

are general ly required. As such, management

achieves the M3 level (operable).

• Power grid control slice based on low

latency (B1, T3, S2, and M3)

This type of slice includes intelligent distributed

power distr ibut ion automation, electr ical load

requirement response, and distr ibuted energy

control.

The per-user bandwidth level is B1 (1–10 Mbit/s).

Control data is mostly instruction data, and the

data bandwidth is approximately 2 Mbit/s.

The la tency leve l i s T3 (10–20 ms) , as the

latency of differential protection cannot exceed

15 ms. With the wide application of intell igent

distributed power distribution network terminals,

more distributed point-to-point connections will

emerge, and more local control and linkage with

the main network wil l be required. In addition,

millisecond-level latency will be required.

The isolat ion level is S2 (physical isolat ion).

A p p l i c a t i o n s s u c h a s p o w e r d i s t r i b u t i o n

automation and precise load control are used

for serv ices in the power product ion cont ro l

area, and these need to be physically isolated

f rom publ ic network serv ices, app l ica t ion o f

o ther indus t r ies , and serv ices in the power

management area. In addition, services in the

real- t ime control zone (secur i ty zone I) need

to be logically isolated from those in the non-

c o n t r o l p r o d u c t i o n z o n e ( s e c u r i t y z o n e I I )

in the same area . E2E phys ica l i so la t ion is

recommended. That is, in addition to the 5G core

network and bearer network, the RAN network

implements the resource block (RB) reservation

mechanism to achieve physical isolation.

Electric Power Slices and SLA Levels 12Page

T h e m a n a g e m e n t l e v e l i s M 3 ( o p e r a b l e ) .

The electr ic power industry involves mult ip le

provincial and municipal companies. Through

open APIs, users can take advantage of self-

opera t ion capab i l i t ies such as s l i ce serv ice

monitoring and service management. As such,

management achieves the M3 level (operable).

• Monitoring slice based on wireless

collection (B1, T1, S1, and M3)

This type of slice applies to scenarios such as

electr ic i ty consumption information col lect ion

and power distribution network status monitoring.

The collected content mainly includes basic data

and images, and requires massive connectivity.

The per-user bandwidth level is B1 (1–10 Mbit/

s). Most control data and monitoring data to be

transmitted consist of small data packets, and

1–100 bit/s bandwidth is required for a single

data transmission.

T h e l a t e n c y l e v e l i s T 1 ( 5 0 – 1 0 0 m s ) . T h e

moni tor ing on the device running status and

running environment is intended to improve the

management of key devices and facilities, while

the required latency ranges from hundreds of

milliseconds to seconds.

The iso la t ion leve l i s S1 ( log ica l i so la t ion) .

W i r e l e s s c o l l e c t i o n a p p l i c a t i o n s a r e u s e d

for serv ices in the management in format ion

area, and need to be physical ly isolated from

publ ic network services, appl icat ions of other

industries, and services in the power production

control area. In addit ion, services in securi ty

zone III need to be logically isolated from those

in security zone IV in the same area. Considering

the balance between service requirements and

network construction costs, it is recommended

that the 5G core network and bearer network

implement physical isolation, and that the RAN

network implement the resource preempt ion

mechan ism based on p r io r i t y schedu l ing to

achieve logical isolation.

The management leve l is M3 (operab le) : As

wireless collection applications involve a large

number of power terminals and devices, self-

de f i ned use r g roup managemen t , se l f - he lp

troubleshooting, and access permission control

are general ly required. As such, management

achieves the M3 level (operable).

Electric Power Slices and SLA Levels13Page

075G Slice Palette Benefits: Industry Engagement and Connectivity Evaluation

Bringing 5G slicing closer to industries: Enterprise customers understand slice capabilities and

choose appropriate levels for their services. Operators and equipment vendors can take advantage

of normalized and simplified network design, or even customize options to generate required network

configurations and charging rules. These benefits offer a new business model of self-service for

enterprises.

Building connectivity evaluation capabilities for the industrial Internet: Based on SLA levels,

digital connection capabil i t ies for industries can be determined to evaluate the effect of industry

digitalization. This further facilitates the analysis of weaknesses and the re-direction of investment to

build an industrial Internet that truly connects and promotes industry upgrade.

[Partners] Huawei Technologies Co., Ltd., Shanghai Fosun High Technology (Group) Co., Ltd., China

Unicom Zhejiang, National Telemedicine and Connected Health Center of China-Japan Friendship

Hospital, Remote Surgery Center for Orthopaedic Robots of Beijing Jishuitan Hospital, TINAVI Medical

Technologies Co., Ltd., Beijing Tsinghua Changgung Hospital, Beijing JinCheng Medical Technology

Co., Ltd., Nanjing Iron and Steel Co., Ltd., Beijing Foton Cummins Engine Co., Ltd., Haier Smart Home

Co., Ltd., and Sinopec Shengli Oilfield.

5G Slice Palette Benefits: Industry Engagement and Connectivity Evaluation 14Page