“standardization activities in 3gpp, target solutions for ...€¦ · note 3: doppler and delay...

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THALES ALENIA SPACE OPENRef.:

Template : 83230347-DOC-TAS-EN-005

© 2019 Thales Alenia Space

Webinar on 5GSatellite

November 6th, 2019

2019 June

“standardization activities in3GPP, target solutions forremote and rural areas”

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As a contributor to the main 5G market shaping professional associations:

3GPP (www.3gpp.org)

Broad Indian Forum (BIF) : https://www.broadbandindiaforum.com/

NGMN (https://www.ngmn.org/), GSMA (https://www.gsma.com/)

As a rapporteur for the related satellite topics in 3GPP:

SA WG

SA1, Market & Service study & related requirements

SA2, Architecture

SA5, Network management

RAN WGs

RAN1: Physical layer

RAN2: Access layers

RAN3, Radio access network architecture

As a moderator of the SSIG (Satellite Stakeholders Interest Group)

more than 35 members of 3GPP. Indian 5G stakeholders are welcome to join SSIG – please refer toSSIG secretary ([email protected])

As part of Thales, a truly global companyDec 3 2018

Thales Alenia Space with Thales is committed to 5G

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© 2019 Thales Alenia Space2019 June

By 2020, 4G will cover (5G similar):

63% of the world population, but only

37% of the landmass

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Targeted services

July 18

Target areas• Cities• Sub-urban• Indoor

NGSOSatellite

RAT

4G/5GTerrestrial

RAT

GSO/NGSOSatellite

RAT

IAB

Target areas• Outdoor• Deep rural

ARPU density / data rate / capacity

Target areas• Vehicular, high speed trains,• Maritime, aeronautics,• Rural, village• In building (Integrated Access &

Backhaul)

Providing eMBB & mMTC services to UE with different Radio Access Technologies

Role of each access• Cellular for relatively

populated areas• LEO for deep rural

areas and delaysensitive traffic

• GEO for hotspots inisolated small areas

Combining the access• Hand-over for service

continuity• Multi connectivity for

increased reliability

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Users, service providers and verticals desire standards to simplifyimplementation, maintenance and application development

transport & logistics, public safety, agriculture, utilities, mining/oil & gas,broadcasters, maritime, aeronautic, high speed train, automotive…

Open and global standards ensure

future proof solutions

multi-vendor interoperability

Technology commonality with cellular

Ensure access to economies of scale

Allows cost reduction (CAPEX & OPEX), large product diversity & a widereco-system.

Dec 3 2018

Why standards for future Non-Terrestrial networks ?

Long term vision: future NTN based on global 3GPP defined standards

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NTN friendly network management framework

Service level agreement/traffic demand description andresource management for 3rd parties (e.g. Service providers,telcos) across non-terrestrial networks integrated with 5G

NTN friendly NG-RAN protocols/functions & related tests

enabling 5G system to support non-terrestrial networks (access ortransport) in single or multi connectivity context

NTN friendly New Radio (NR) interface & the related tests

Enabling multi-vendor interoperability for all non-terrestrialnetworks (orbit, frequency bands and targeted UEs)

Dec 3 2018

Standardisation objectives in 3GPP

See 3GPP TR22.822 & 38.811

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Minimum impacts on User Equipment

In case of direct access: Support of 3GPP class 3: 0.2 W Tx power ,0 dBi linear polarised antenna, 9 dB noise figure

Minimum impacts on Mobile Network infrastructure

CN: Support satellite based NG-RAN

RAN

Mitigating satellite specifics (Channel, Latency, Doppler, cell pattern)

Adding Earth stations to access satellites

Orchestration/OSS:

Provisioning satellite capacity (Slicing)

Monitoring KPIs

Infrastructure ScalabilityDec 3 2018

Key success factors for « seamless » integration of satellite

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5G performance via satellite

Usage

scenarios

Experience data rate Max UE

speedEnvironment

Example of UE

categoriesDownlink Uplink

Pedestrian 2 Mbps 250 kbps 3 km/hExtreme coverage Handheld

Vehicular

connectivity50 Mbps 25 Mbps 250 km/h

Along roads in low

population density

areas

Vehicular mounted

Stationary 50 Mbps 25 Mbps 0km/h Extreme coverage Building mounted

Airplanes

connectivity360 Mbps 180 Mbps 1 000 km/h Open area Airplane mounted

IoT

connectivity2 kbps 10 kbps 0 km/h Extreme coverage IoT

See 3GPP TR 38.821

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Satellite in the 3GPP roadmap

2018 2019 2020

SID: 5G Rel-17 Req study

2021 2022

WID: Architecturespecification

5G phase 1 5G phase 2

Release15

Release 16 Release 17

WID: 5GRel-17Reqs

SID: 5G Rel-17 Architecturestudy

WID: 5G Rel-17 RANspecification

SID: 5G Rel-17 RAN study

Rel-17SA1

SA2

RAN

Release Deployment

15 2019

16 2020

17 2022

5G phase 2

SID: 1stNTN study

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• Discussion on work plan for Release 17 (Jan 2020 – June 2021) has started

• [Non_Terrestrial_Networks] (moderator: Thales). Goal: scoping of the normative Work ItemDescription. Include NTN-specific positioning

3GPP: Satellite/NTN standardisation status/plan

July 18

Item ref Lead WG Title 3GPP doc Completion Rapporteurs

SI ”FS_NR_nonterr_nw onNR”

RAN Study on New Radio (NR) to support NonTerrestrial Networks (Release 15)

TR 38.811 June 2018 N. Chuberre -Thales

SI ”FS_NR_NTN_solutions” RAN3 Solutions for NR to support non-terrestrialnetworks (NTN) (Release 16)

TR 38.821 March 2020 N. Chuberre -Thales

SI ”FS_5GSAT” SA1 Study on using Satellite Access in 5G; Stage 1(Release 16)

TR 22.822 June 2018 C. Michel – Thales

WI ”5GSAT” SA1 Service requirements for the 5G system; Stage1 (Release 16)

TS 22.261 Dec 2018 C. Michel – Thales

SI ”FS_5GSAT_ARCH” SA2 Study on architecture aspects for usingsatellite access in 5G (Release 16)

TR 23.737 Sept 2019 C. Michel - Thales

SI ”FS_5G_SAT_MO” SA5 Study on management and orchestrationaspects of integrated satellite components ina 5G network

TR 28.808 Dec 2019 C. Michel – Thales

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© 2019 Thales Alenia SpaceDec 3 2018

Effects of Non-Terrestrial Networks scenarios

Effects HAPS LEO MEO GEO HEO

Motion of the

space/aerial

vehicles

Moving cell pattern

Yes if beams are

moving on earth

Yes if beams are moving on Earth (

hence high speed)

No

Yes if beams are

moving on Earth (

hence high speed)

No if beams are fixed on EarthNo if beams are fixed

on earth

Delay variationNo High Medium

NoLow

(Note 3) (Note 3) (Note 3)

DopplerLow High Medium

NegligibleLow

(Note 3) (Note 3) (Note 3)

Altitude Latency Negligible Low Medium High High

Cell size Differential delay SmallTypically relatively

medium

Typically relatively

medium

Possibly

relatively highPossibly relatively high

Propagation

channel

Frequency

selectiveness

impairments

Note 4 Note 4 Note 4 No No

Delay spread

impairmentsNote 4 Note 4 Note 4 No No

Duplex schemeRegulatory

constraints

FDD and Possibly

TDD

FDD and Possibly

TDDOnly FDD Only FDD Only FDD

Note 3: Doppler and Delay variation can be pre compensated at beam centre. In such case residual Doppler and Delay variation is

commensurate to the ones in cellular and can be accommodated by the UE

Note 4: Some delay spread and frequency selective effect can be experienced in case of omni-directional antenna device especially at low

elevation angle

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Random access

New PRACH format/message (TBC) [RAN1]

Adaptation of Random access protocol/procedure including 4 and 2 step RACH (RA-response window size, Rx/Tx time gap offset) (TBC) [RAN1/RAN2]

Synchronisation

Enhanced timing and frequency acquisition (TBC) [RAN1]

Enhanced uplink timing advance/alignment procedures (TBC) [RAN1]

HARQ: Turned off and/or Enhanced especially for LEO [RAN1/2]

Extended system information, common signalling [RAN2]

User plane enhancements (including timers, packet reordering during handoverprocedures, SN and window sizes) at MAC, RLC, PDCP, RRC level [RAN2]

Dec 3 2018

NR supports NTN: potential impacts (1)

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Idle mode mobility management including Tracking area management, RadioNotification Area management Paging [RAN2/3] and possibly NAS adaptation [RAN3]

Connected mode mobility enhancements of Rel.16 mobility methods like make-before-break handover, conditional handover, adaptation of radio link monitoring to supportNTN [RAN1/2/3]

Handling of network identities (TBC) [RAN3]

Radio resource management core requirements (e.g. cell phase synchronisation, Beammanagement/switching, Radio link monitoring & Timing requirements, ...) [RAN4]

Multi connectivity / mobility procedure/protocols between NR based satellite accessand NR based cellular access [RAN2/3]

Dec 3 2018

NR supports NTN: potential impacts (2)

To be refined with outcomes of the on going study item FS_NR_NTN_solutions

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THANK YOU

Thales Point of contacts:

CHUBERRE Nicolas:

[email protected]

MICHEL Cyril:

[email protected]

2019 June

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Reference NTN architectures - 1

Non 3GPPaccess

(satellite)N3IWFUE

5GCN

N2, N3

N1

Y1 Y2

See figure 4.2.8.2.1-1 in TS 23.501

NWu

2) Non 3GPP defined Satellite access

UENG RAN

(gNB)5GCN

NR-Uu NG N6 DataNetwork

1) Satellite transport network

Out of RANscope

Out of RANscope

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UENGRAN

5G CNNR-Uu NG N6 Data

Network

UENGRAN

5G CNNR-Uu NG N6 Data

Network

3) Satellite access with transparent satellite

4) Satellite access with regenerative satellite

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UEIAB nodeor relay

5G CNNR-UuOr NR-PC5

NG N6 DataNetwork

IABdonor

NR-Uu

5) Transparent Satellite access with IAB node or relay

UE IAB node 5G CNNR-Uu NG N6 Data

Network

IABdonor

NR-Uu

6) Regenerative Satellite access with IAB node

“standardization activities in 3gpp, target solutions for ...€¦ · note 3: doppler and delay...

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