5G-EnhanceNewsletter

22 March 2021
Issue 4Proje ct we bsite : h ttp:/ /5 g -enh a nce .eu/
Pa rtn e rs:- EU re se arch te a m ( VTT, F HG, UO ULU an d
A cce lle ra n )- Ja pan re se arch tea m (T UA T, NI CT, UEC,CA TV , JCTA and RWJ )INSIDE THIS ISSUE

Introduction to 5G-Enhance

1. Introduction to 5GEnhance

2. 5G Enhance use casemapping
3. 5G Enhancerequirements

4. Conclusion“5G-Enhance developand execute large scale
trial activities on actual
testbed in EU and Japan.”

5G Enhanced Mobile Broadband Access Networks in Crowded
Environments (5G-Enhance) is a Horizon 2020 joint projectcomposed of EU research team (VTT, FHG, UOULU andAccelleran) and Japan research team (TUAT, NICT, UEC,CATV, JCTA and RWJ). 5G-Enhance intends to develop andexecute large scale trial activities on actual testbed in EU andJapan.
A key objective for 5G-Enhance is to define and evaluate
interoperable 5G eMBB and efficient network solutions indense area. In order to fulfil this the 5G-Enhance consortium
has identified a number of key project objectives; each ofwhich is associated with a distinct set of research andinnovations. These specific objectives are:
Objective 1: Develop, plan and execute large scale trial
activities on actual testbeds between EU and Japan.
Objective 2: Clarify the design and specification required forthe demonstration and trials based on two wirelessapplications with the 5G network.
Objective 3: Development of 5G enhanced mobile broadband
technologies in dense area for achieving the requirements (5GKPI) of the two applications.
Objective 4: Establish long-term research collaboration
between leading industry players, top research institutes anduniversities in Europe and Japan

5G-EnhanceNewsletter no.4

2.

Page 2

5G-Enhance Use Case Mapping

We present how technology development and trials in 5G-Enhance
map into use cases. There are numerous studies regarding potential
use cases as they reviewed in the previous section. Two use casefamilies (Broadband access in dense area and broadband accesseverywhere) are the most relevant ones from potential use cases
described by the NGMN white paper [1].
The high level KPIs of the 5G PPP are described in [2]. 5G-Enhance
will contribute to those high level KPIs. Table 1 highlights the 5G PPPKPIs.

“Two use case families(Broadband access indense area andbroadband accesseverywhere) are themost relevant ones frompotential use cases.”

Table 1 5G PPP KPIs and 5G-Enhance contributions
KPIs

Relevance

5G-Enhance contributions

Providing 1000 times Highhigher
wirelessarea
capacity and more varied
servicecapabilities
compared to 2010.

5G-Enhance contributes to higher wireless capacity
as follows: (1) Developing link and network leveltechniques to improve the wireless capacity (2)Managing the radio and network resource more
efficiently.

Facilitating very dense Medium
deployments of wirelesscommunication links toconnect over 7 trillion
wireless devices serving
over 7 billion people.

5G-Enhance contributes to high connection density
in different approaches as follows: (1) Managing
spectrum more efficiently and using operated
bandwidth. (2) Reducing the required bandwidth fora given user data rate by flexible TDD. (3) Operating
networks by efficient radio and network resource
use.

Creating a secure, reliable Medium
and dependable Internetwith a “zero perceived”
downtime for services
provision.

5G-Enhance achieves secureconnection by multi-connectivity.

andreliable

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Page 3

Table 2 represents how 5G-Enhance research works and trials connect to the use case families and our own use
case.
Table 2 Use case mapping
5G-Enhanceresearches

5G-Enhancetrials

5G-Enhance
use cases

Target KPIs

Usefamilies

case

Flexible TDD

Indoor trial

Remote surgery, Throughput,Broadbandin Spectralclass room
efficiencyMulticonnectivity

Indoor trial

Remote surgery, Resilience and Broadband
Broadbandin continuity,
access in denseclass room
Throughput
areas

Spectrummeasurement
and learning

Outdoor trial

Ad-hocbroadband
service for sport
event

SpectralBroadband
efficiency, Radio accessresource
everywhere
efficiency

Spectrum
Outdoor trial
resource
databaseandmanagement

Ad-hocbroadband
service for sport
event

SpectralBroadband
efficiency, Radio accessresource
everywhere
efficiency

Network sharing Outdoor trial
andmanagement

Ad-hocCost, Flexibility, Broadband
broadband
Reconfigurability accessservice for sporteverywhere
event

Broadband
access in denseareas5G-EnhanceNewsletter no.4

3.

Page 4

5G-Enhance Requirements

In WP3 special attentions is given on dynamic TDD, multi-connectivity, and virtual-RAN technologies in orderto develop advanced RAT for eMBB in a high-demand area. Note, that the results of expert evaluation wererounded to two decimal points independently for each column. Each expert assigns two ranks I and D from a [0.. 9] range to each backlog input following the common interpretation
1. I: how important is the input? (0=don‘t know, 1=no importance,.., 9=highest importance)
2. D: how difficult is it to implement? (0=don‘t know, 1=very easy,.., 9=highest difficulty)

Table 3 WP3 Requirements

Number ofrequirement
R3.1
R3.2
R3.3
R3.4
R3.5
R3.6
R3.7

Requirements description
The 5G-Enhance shall support micro-operator
networks
The 5G-Enhance shall support micro-operator
networks that provide coverage in specific highdense area
The 5G-Enhance shall have the capability tosupport an assymetric uplink/downlink traffic that
may arise in high dense area
The 5G-Enhance shall have the capability ofsupporting dynamic uplink/downlink traffic that
may evolve over a period of time
The 5G-Enhance shall allow an intense reuse of thespectrum in dense areas in order to increase thespectrum utilization
The 5G-Enhance shall have the capability to
manage intra-cell and inter-cell interferences inorder to increase the spectral efficiency
The 5G-Enhance shall allow high transmission
reliability

I

Evaluation
DID

5,89

5,11

33,78

5,56

5,22

31,11

5,56

6,56

24,28

4,56

6,56

31,67

6,50

7,50

45,88

6,176,00

32,48

4,78

6,67

33,03

5G-EnhanceNewsletter no.4Page 5

WP4 identified two types of requirements, namely network- and spectrum sharing requirements, which areconverted here into two tables (Table 4 and 5) Note, that the results of expert evaluation were rounded totwo decimal points independently for each column.
Table 4 WP4 Network Sharing Requirements

Number ofrequireme
nt
R4N.1
R4N.2
R4N.3
R4N.4

R4N.5

R4N.6
R4N.7

R4N.8

Requirements description
IEvaluation
DIDThe 5G system shall support micro-operator networks

5,78

5,56

32,00

The 5G system shall support micro-operator networks
that provide coverage within a specific geographicalarea
The 5G system shall support unique network
identifiers for micro-operator networks

5,67

5,67

29,28

3,71

6,86

27,20

The 5G system shall support micro-operator networks
as tenant-centric network slices with traffic, QoS,
and service separation between tenants, e.g.,communication services of one tenant do notinterfere with communication services from anothertenant
The 5G system shall support multi-tenancy in amicro-operator network such that there may be
restrictions on which resources an individual tenant
is allowed to access
The 5G system shall support capability to deploy
micro-operator network in either licensed or
unlicensed bands
Subject to an agreement between theoperators/service providers, operator policies andthe regional or national regulatory requirements, the5G system shall support mobility between a microoperator network and a public PLMN
The 5G system shall be able to expose a suitable API
to provide the information regarding the geographic
location of coverage area (e.g radio cell sectorcoverage) to an authorised 3rd party

5,33

7,56

29,28

5,22

7,56

35,83

5,14

5,29

26,58

6,83

7,50

48,84

4,71

5,71

30,16

5G-EnhanceNewsletter no.4

R4N.9

R4N.10

R4N.11

R4N.12
R4N.13

R4N.14

R4N.15
R4N.16
R4N.17

Page 6

The 5G system shall be able to expose a suitable
API to provide the information about the allocatedand free network service resources in the network
to an authorised user
The 5G system shall be able to expose a suitable
API for monitoring the resource utilisation of thenetwork service in a micro-operator network (radioaccess point and the transport network (front,backhaul) by an authorised 3rd party
A micro-operator network shall be able to expose asuitable API to allow an authorised 3rd party todefine and reconfigure the properties of offered 5G
communication services
The 5G system shall be able expose a suitable API
for an authorised 3rd party application to negotiate
communication service requirements.
The 3GPP system shall support a suitable API for an
authorised 3rd party to provide information about
the required transmission QoS desired for different
granularity of data transmitted of the 3rdapplication
The 5G system shall be able to expose a suitable
API to provide the connectivity status andgeographic position of all UEs and their radio accesspoints to an authorised user
The 5G system shall support a mechanism for a UE
to identify a micro-operator network.

4,29

6,29

29,76

4,57

6,43

31,00

3,50

8,00

31,20

4,00

8,17

31,20

3,83

7,83

33,44

3,43

5,57

20,16

5,14

5,86

33,64

The 5G system shall support a mechanism to allow a
UE to select a micro-operator network that it isauthorised to access
A UE shall be able to detect the availability of amicro-operator network before attempting toaccess a cell of this network.

5,33

5,78

39,67

4,88

6,25

33,60

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Page 7

Table 5 WP4 Spectrum Sharing Requirements

Number ofRequirements description
requirement
R4S.1
The 5G Enhance system shall support both different
levels of spectrum access rights ranging fromexclusively licensed to unlicensed spectrum bands
R4S.2
The 5G Enhance system shall support sub 6GHz bandand mm-wave spectrum band for sharing thespectrum among the micro-operator networks
R4S.3
The 5G Enhance system shall have the capability of
supporting dynamic spectrum demand over a periodof time for micro-operator networks
R4S.4
The 5G Enhance system shall have the capability tomitigate interference from incumbent’s to microoperator networks (operating both indoor andoutdoor).
R4S.5
The 5G Enhance system shall have the capability toprotect incumbents while sharing its spectrum bandwith the micro-operator networks as defined by theregulators
R4S.6
The 5G Enhance system shall support flexible
spectrum sharing schemes among micro-operatorsand incumbents depending on the variousparameters gathered by the operators.
R4S.7
The 5G Enhance system shall allow an intense reuseof the sharing spectrum in dense areas, in order toincrease the spectrum utilization.

I

Evaluation
DID

5,56

6,56

38,49

4,13

7,63

34,22

5,25

7,38

39,42

6,14

7,57

42,50

7,57

6,00

41,56

6,13

7,63

43,75

5,50

7,50

37,89

5G-EnhanceNewsletter no.4

Page 8The results of expert evaluation of all requirements identified by WP3 and by WP4 are summarized in the threediagrams. Each diagram uses intentionally subjective threshold to highlight small amount of requirements thatare superior in a certain sense. Thus, our research and demonstration activities will be able to concentrate on
satisfying the requirements and improving the performances.

Figure 1 The importance of requirements

5G-EnhanceNewsletter no.4

Page 9Figure 2 Difficulty of the requirements

Figure 3 Criticality of the requirements

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4.

Conclusion•

eMBB techniques•

Flexible TDD•

Multi-connectivity•

Spectrum sharing technologies•Network sharing technologies•Interoperability

Page 10The 5G-ENHANCE use cases detailed in this newsletter serve as a tool to achieve project ambitions beyond thestate of the art in a number of promising 5G techniques:

Reference[1] NGMN Alliance, „NGMN 5G White Paper,“ February 2015.
[2] EU Commission, „5G-PPP contract & technical annex,“ 2013. [Online]. Available: https://5g-ppp.eu/wpcontent/uploads/2014/02/Advanced-5G-Network-Infrastructure-PPP-in-H2020_Final_November-2013.pdf.