work package 2: scenarios for satellite integration in 5g ... · wp2.2 business requirements (bt)...

Work package 2: Scenarios for Satellite Integration in 5G

Final review

29th April 2020

Michael Fitch and Asma Chiha

SaT5G - Satellite And Terrestrial network for 5G 2

WP2 Agenda

Timing Title Duration Topic Associated

deliverable

Presenter

WP2(40

mins)

9:30 –10:10

Brief overview of WP2

5 min Introduction to the WP so that the reviewers have the context of the presentations

N/A MichaelFitch

Business, Operational and Technical Requirements

15 min Brief summary of D2.2 and requirements set in it

D2.2 MichaelFitch

Business modelling 20 min Brief summary of D2.3 D2.3 Asma

Chiha

SaT5G - Satellite And Terrestrial network for 5G

Define use cases and scenarios to allow satellite to be seamlessly integrated into 5G, where SaT5G is focused

in eMBB,

Define business, operational and technical requirements for those use-cases and scenarios,

Cost – benefit analysis on those use-cases and scenarios, fit for converged, multi-operator networks.

3

WP2 Overview – Objectives

EC, 5GPP, 3GPP/ETSI & other Standardisation Bodies, Wider Research Community, Industry Stakeholders

3 EstablishedSatellite 5G TestbedsFor Phase 3 & Pilots

Research Papers & Prototype Virtualised

Components

Commercial Models &

Business Cases

WP2 Scenarios for Satellite Integration in 5G

Reference Satellite Architectures

for 3GPP

PrototypeDevelopments

Scenarios & Requirements

Scenario Specific

Architectures

Results & Recommendations

Scenarios & Traffic Analysis

WP3 Integrated Network Architecture Design

WP4 Research to Prototype Development

WP5 Validation and Demonstration

Contributionto Standards

5G ReferenceArchitectureInc. Satellite

>10 3GPP 5GStandardisationContributions

DemonstratedImpact on 5G

KPIs

DemonstratedBusiness

Value to 5G

WP1 Project Management

3 Existing 5G Testbeds

Consortium Active in

3GPP and ETSI

Strong Links to 5GPPP Phase 1

Critical Mass from European

Satellite Industry

WP6 Dissemination, Standards and Exploitation

Continuous Advisory Board Oversight & Recommendations

WP2 – Scenarios for Satellite Integration in 5G


WP2 Overview - Structure and responsibilities

WP2.2BusinessRequirements(BT)

WP2.3OperationalRequirements(AVA)

WP2.4Technical Requirements(TAS)

D2.2Business, Operational and Technical Requirements for Satellite eMBB(BT), month 26 [28]

WP2 manager BT to M18 and then UoS

WP2.5Businessmodelling(IMEC)

D2.3Business modellingand techno-economicanalysis(IMEC), month 30[32]


WP2 Overview - Timeline

D2.1 Satellite reference use-cases and scenarios for eMBB

D2.2 Business, Operationaland Technical Requirements for Satellite eMBB (Interim)

D2.3 Business modelling and techno-economic analysis of Satellite eMBB(Interim)

M4Sept 2017

M7Dec2017

M28Sept2019

D2.3 Business modelling and techno-economic analysis of Satellite eMBB(Pre-final)

D2.3 Business modelling and techno-economic analysis of Satellite eMBB(Final)

D2.2 Business, Operationaland Technical Requirements for Satellite eMBB (Final)

M16Sept2018

M30Nov2019

M33Feb2020

1st review


We evaluated many use-cases for greatest potential for market impact and revenues, and these four came out on top (WP2.1, D2.1):

1. Edge delivery and offload of content and VNF software,

2. 5G fixed backhaul, for connecting cellular base-stations,

3. 5G to premises, in parallel with fixed network to enhance broadband,

4. 5G moving platform backhaul, such as aeroplanes and trains.

We defined business, operational and technical requirements for these use-cases (WP2.2 – WP2.4, D2.2)

We performed quantitative techno-economic analysis of these use-cases (WP2.5, D2.3) as follows

• Economic modelling of computing and networking resource for VNFs and network slicing,

• Modelled each use-case and produced business-specific results,

• Incorporated a ‘broker’ concept for multiple MNOs / SNOs.

6

WP2 Overview – summary of activities


Started with four high level principles from the proposal

• Enable “plug-and-play”,

• Seamless operation at management and security levels,

• Enable eMBB services everywhere and to all market verticals,

• No changes or adaptations needed on user equipment,

We applied this as follows

• Reviewed current satellite services sector to set context for current best practice,

• Assessed the market size for the SaT5G use cases from D2.1,

• Created generic value network to indentify the key players so their needs could be considered,

Made initial observation of possible broker role between MNOs and SNOs,

• Derived SaT5G KPIs from high level 5G PPP KPIs to provide reference for validation activities,

• Reviewed and derived general requirements for business operational and technical.

Methodology

7

WP2.2 – 2.4 Requirements


Business requirements

• Identify key stakeholders

• Capture stakeholder requirements

• Categorise those requirements

Functional, which are functions that the network must perform

Non-functional, which are aspects such as reliability, regulatory, performance, usability

• Interpret business requirements

Operational requirements

• Operations and management systems

Accounting and Billing

OSS

• Deployment constraints

Cost efficiency, such as shared MNO / SNO costs of remote sites

• Network maintenance

Best practice to support SLAs, change management etc

8

Requirements methodology


Technical requirements

• Network management

To follow standardised practices such as those set out by ETSI MANO

• QoS management

End to end QoS using mapping of 5G QCI to Satellite QoS classes

Architectural based requirements. Following the definition of architectures in WP3, the requirements

were refined, examples are:

• Network management, where additional flexibility is provided through orchestration

• Slice management, with dynamic use of compute resources and satellite link resources, and

federated satellite between multiple MNOs.

9

Requirements methodology


Business requirements have been found to be

• Satellite network functions compliant with standards bodies like 3GPP or ITU,

• Virtualization requirements to be able to integrate satellites networks into multiple slices,

• Edge delivery and caching functionalities needed,

• Five possible goals for the analysis identified,

The major operational requirements are found to be

• Legal requirements, for example regulatory limits on transmit power and interference levels,

• The need for network management systems to allow maintenance and management of the network, billing, order placement and customer support systems,

• Dynamic allocation of network capacity and network resources needed,

The major technical requirements are found to be

• Management of end-to-end QoS,

• Management and orchestration to be integrated following the ETSI MANO specifications,

• End-to-end slicing with isolation between slices and appropriate levels of security,

• Support for IP multicast and multi-linking (parallel satellite and terrestrial paths).

Major requirements

10

D2.2 Business, Operational, Technical requirements summary


Asma Chiha

11

Part 3 Modelling (20 mins)


Where does the integrated network provide a viable alternative compared to terrestrial-only solutions?

What is the average cost per user and how does it relate to the willingness to pay?

Who bears the risk in case of a failure in the integrated network?

How can technological evolutions such as network slicing and caching help the business case?

Research questions

12

Integrated Satellite & 5G networks


Consists of multiple, iterative steps:

13

Techno-economic analysis

of integrated sat-5G networks

Value network and business model

Viability study

Impact of new technology on business case

Sensitivity Analysis


Main takeaways from the techno-economic analysis


•Identification of key stakeholders

•Establishment of value network

•Potential business models

Viability study

•TCO model

•Revenue assumption

•Comparison between ARPU and WTP


•Caching popular content

•Network slicing


•Basic sensitivity analysis

•Global sensitivity analysis

Different business models are possible e.g. wholesale model, retail, sponsorship etc.

Broker: a third-party facilitates interactions between different stakeholders.







Viability study

•TCO model





•Network slicing




– Calculation of the total cost for deploying and operating the network:SaT5G solution is economically viable for:• rural areas deployment• VOD catalogue updates• small businesses• inflight connectivity







Viability study

•TCO model





•Network slicing




Investigate the impact of technological innovation on the totalcost

(1) impact of caching– less bandwidth to be used over the backhaul(satellite) link– saves from 20% to 40% of the OPEX;(2) impact of network slicing– more efficient use of resources– saves costs on the core network side(3) Satellite multicast decreases the OPEX for theintegrated SaT5G solution







Viability study

•TCO model





•Network slicing




– Evaluating the uncertainty that links the model outputs to the inputs.The ACPU is very sensitive to:• population density variation (i.e. to the number

of users).• caching rate• bitrate per user


Based on the lifecycle of satellite resources reservation

18

Different business models for SaT5G integrating a

broker


Emulation of a single broker modelThe graphs show resource request failure rate as a function of load

19

Different business models for SaT5G integrating a

broker


Viability study: Total Cost of Ownership (TCO) Model

The goal of the TCO model is to evaluate for which use cases and scenarios satellite

provides a viable alternative to terrestrial connectivity solutions (all use cases)



Updating the VOD content of CDN nodes and providing a live streaming service (SaT5G

use case 1)



Updating the VOD content of CDN nodes and providing a live streaming service (SaT5G

use case 1)

0

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0 €

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40 €

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20 100 1000 6000

Gb

ps

TCO

(M

illio

ns

€)

Number of CDN nodes

Total cost of Ownership and the Bandwidth saving for the case of France

Bandwidth saving TCO

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Number of CDN nodes

Total cost of Ownership and the Bandwidth saving for the case of Botswana

Bandwidth saving TCO

The ACPU is higher in low population density areas than in high population density areas (e.g. France vs Botswana).

ACPU\#CDN 20 100 1000 6000

ACPU 0.002€ 0.01 € 0.1€ 0.4 €

Bandwidth saving 1 Gbps 7 Gbps 76 Gbps 457 Gbps

ACPU\#CDN 3 9 125 426

ACPU 0.02€ 0.04€ 0.3€ 1.1€

Bandwidth saving 228.5 Mbps 685.5 Mbps 10 Gbps 32 Gbps


The goal of the cost allocation model for network slicing:

• fairly allocate network costs to deployed slices (services) and,

• show that network slicing makes more efficient use of the network.

25

Network slicing cost allocation model

Cost driver: throughput

Storage resources

Radio resources

Computational resources

Cost driver: Storage and processing power

NF1 NF2 NFN….Slice S



Satellite backhaul for providing eMBB to rural areas (SaT5G use case 2)



Satellite backhaul for providing eMBB to rural areas (use case 2)

€ 0

€ 50,000

€ 100,000

€ 150,000

€ 200,000

€ 250,000

Video Voice

Cost allocation for eMBB video Vs eMBB voice

Cost of the throughput Cost of the core network

Cost allocation for network slicing

Cost virtualized

5G core

Cost of the traditional core network Cost reduction

Cost 5G

core per

Mbps

21€ 38 euro per Mbps (5 to 6 euro per Mbps

for the hardware and 30 to 35 euro per

Mbps for software).

45%

Cost 5G

core per

user

53€ 60 euro per user . 12%

Cost saving of network slicing in the core network


Sensitivity analysis studies the impact of the uncertainty of inputs on the uncertainty of the model’s

outputs

Key parameters are identified using the mathematical formulation of the cost model of each use case.

For each parameter a distribution is defined based on the most likely values.

28

Sensitivity analysis


Hybrid Multiplay (satellite/xDSL) at home/office premises in underserved areas (SaT5G

use case 3)

29

Sensitivity analysis

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4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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PU

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uro

Contention ratio (1:X)

Variation of the ACPU in function of the satellite contention ratio

satellite capacity required 16 Mbps satellite capacity required 14 Mbps satellite capacity required 12 Mbps

WTP



Results show that an integrated satellite-5G network can definitely provide a viable alternative to

terrestrial-only solutions, given that the right use is made of edge caching, slicing and third-party

management.

Source: ESOA


A cost comparison can be made to assess the cost savings resulting from deploying the Sat5G solution

to serve the CDN nodes versus upgrading the terrestrial network (upgrading copper) or installing fiber

network.

An analysis of the economic and environmental benefits of using virtualization to integrate the VSAT

modem with the home gateway.

The extension of this analysis to other specific scenarios such as providing connectivity to trains and

ships.

31

Beyond SaT5G


Spare slides


Step Description

Identify Key Stakeholders Identify the key people who will be affected by the project (see section 3.4)

Capture Stakeholder Requirements

Ask each of these key stakeholders, or groups of stakeholders, for their requirements from the new product or service. What do they want and expect from this project? We can use several methods to understand and capture these requirements

Categorize Requirementsa The most used approach consists in separating the functionalb and non-functionalc requirements. While dividing the specifications into two neat categories is an orderly way to write the documentation, we should remember that in the real world the functional and non-functional requirements are always tightly intertwined [129].

Interpreting and Recording Requirements

Once we have gathered and categorized all of the requirements, determine which requirements are achievable, and how the system or product can deliver them [131].

33

Business requirement methodology

The SaT5G business solution considered enhanced usage predictions in areas with low ARPUs.


Decide what is in and out of scope. Examples of operational requirements that are out of scope

• Spectrum requirements and regulation / sharing

• Taxation, licence fees etc

Consider relevant KPIs. Examples:

• 5GPPP KPI: “Ubiquitous 5G access including in low density areas”

Coverage and availability requirements are generally set by national governments

• Slicing

Enables the application specific parameters to meet the KPIs;

Allows third party managed services for network management;

Enables third party operators to share the site to reduce operator costs in remote regions;

Permits third party managed network security services at cell sites;

Consider legal / safety requirements

• Especially for moving platforms (incurs additional costs)

Needs of the Operational Support Systems of stakeholders, for example

• Accounting and billing

• Network management

34

Operational requirements methodology Back up


Deployment constraints

• Cost efficiency - such as network transformation, software upgrades, phasing out of legacy

equipment

Network maintenance

• Managed service provider is responsible for the operational management of the services and

satellite service provider does the installation and of remote segment / local gateway;

• SLA for incident/fault notification and fix times;

• Change management, problem management, technical care support;

• MNO/ third party responsible for spare parts management;

• Contact methods and escalation paths;

SaT5G followed best industry practice, informed through relevant partners (MNO, SNO etc).

35

Operational requirements methodology Backuo

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