Reza Karimi - Huawei - Licensing for 5G Bands

1. www.huawei.com
Security Level:
HUAWEI TECHNOLOGIES CO., LTD.HUAWEI TECHNOLOGIES
Licensing
for 5G bands
Hamid Reza KARIMI
8 June 2017
UK SPF cluster 1 5G workshop
Bringing 26GHz/mm-wave bands to market in the UK

2. HUAWEI TECHNOLOGIES 2/16
Licensing mechanisms and key questions
Source: Analysys Mason, June 2017
LSA
Vertical
sharing
Horizontal
sharing
Exclusive
use
DSA
26 GHz
 Will 5G licensees require exclusive rights of
access to the 26GHz band for a predetermined
period of time?
 Are there sectors of the industry that might be
precluded from bidding if only exclusive
licences are offered?
 Would a licensed shared access model be
appropriate to enable existing uses of
spectrum and 5G to have access to 26GHz?
 Are there specific licensing
mechanisms for 26GHz or
applications where DSA is a
candidate to manage shared access?
 Is a tiered sharing model (i.e. CBRS type model)
suited to 26GHz?
 If so, what would the tiers of use be (incumbent and
priority only, or is a general authorisation layer
(i.e. licence exempt-type use) required
(are self-deployed 26GHz small cells viable/ envisaged?
 Could the band be segmented into
different access modes e.g. some
channels for exclusive use, some
lightly licensed etc.?
 Which blocks are most relevant for
exclusive use (talking account of
existing EESS/FSS/fixed/other uses?

3. HUAWEI TECHNOLOGIES 3/16
Today’s spectrum authorisation models
Licensing
Licence
exemption
Exclusive Shared
Share with
licensees &
incumbents
Share with
incumbents
Share also
with
incumbents
Share with
exempted
devices only
Share with
licensees
Regulator
 The presence of multiple incumbents in spectrum targetted for 5G
means that sharing with some incumbents will be inevitable.
$
Licence Exemption
rules
Mobile networks
All the above models
are in use today.

4. HUAWEI TECHNOLOGIES 4/16
5G, licensed spectrum and network slicing
Transmission CoreRAN
VR/AR
Car/Energy
Smart Home
Other slices
From dedicated physical infrastructure for different applications,
to a “network factory”
where network slice are “manufactured by SW”
Verticals can be supported by
existing/future spectrum licensed to mobile
operators through network slicing.

5. HUAWEI TECHNOLOGIES 5/16
5G, licensed spectrum and network slicing
 5G is designed to address both MBB and services to the Verticals.
 Network slicing technologies allow MNOs to allocate network resources
to diverse applications with appropriate granularity.
 Consumers and the Verticals can then benefit from
 predictable QoS through licensed spectrum
and tailored to their specific requirements,
 high levels of investment in network infrastructure, and
 economies of scale in a global equipment market.

6. HUAWEI TECHNOLOGIES 6/16
Spectrum ownership
 It might be prudent to remove regulatory barriers towards spectrum
leasing between licensees and the Verticals.
This would allow new business models to develop
if/when required by the market.
 Where a managed QoS is not essential, the Verticals can use
licence-exempt spectrum.

7. HUAWEI TECHNOLOGIES 7/16
Licensed shared access (LSA)
 It is evident that sharing with incumbents will be important for 5G.
 LSA is a specific implementation of database-assisted sharing
between a licensee and incumbents.
 LSA has been standardised at ETSI to facilitate adoption
in different jurisdictions.
 Other sharing frameworks may also be specified by regulators.
See ECC Report 2541 for examples.
1 “Operational guidelines for spectrum sharing to support the implementation of the
current ECC framework in the 3600-3800 MHz range,” Nov 2016.

8. HUAWEI TECHNOLOGIES 8/16
ECC Report 254
“Within this report the protection requirements are defined as the maximum permitted
interference powers IFSS,T and IFS,T in units of dBm/(BFSS MHz) and dBm/(BFS MHz) at the
input of FSS and FS receivers. These will be derived based on the I/N or C/(I+N) protection
criteria (see section 6.1).
The maximum permitted interference powers may be translated to maximum permitted
electric field strengths3 EFSS,T and EFS,T in units of dBμV/m/(BMFCN MHz) at the input of the
FSS and FS receiver antennas.
An Administration may communicate the protection requirements to the stakeholders by:
A) Specifying the maximum permitted interference powers or electric field strengths
and allow full flexibility for MFCN operators to comply with these limits. These
requirements may be expressed in terms of protection zones (see Section 6.2.1).
B) Specifying explicit restrictions on the frequency, or geographic location, or the
e.i.r.p. level (or a combination thereof) for the MFCN deployments. These
restrictions may be expressed in terms of exclusion zones (see Section 6.2.2.1)
and/or restriction zones (see Section 6.2.2.2).
Based on national circumstances an Administration might apply any combination of A and B.”

9. HUAWEI TECHNOLOGIES 9/16
ECC Report 254 and different frameworks
Example:
Figure 6: Calculations are performed by a third party on behalf of the Administration (with the
possible involvement of the MFCN operators and the incumbents) or on behalf of all MFCN
operators (with the possible involvement of the MFCN operators and the incumbents), with
regulatory oversight.

10. HUAWEI TECHNOLOGIES 10/16
Dynamic spectrum access (DSA)
 DSA aims to opportunistically use white spaces which are left over
from existing users of spectrum.
 The term dynamic emphasises that the extent of spectrum availability
changes with time; i.e., pattern of spectrum use by existing users
evolves in the short and/or long term.
 DSA is interesting from an engineering perspective, in that it is an attempt
to use all available spectrum to the greatest extent possible.
 However, DSA is not attractive from an investment perspective, given
the inherent uncertainty in the availability of spectrum.
Such uncertainty is incompatible with the need for highly predictable
performance for eMBB and URLLC use cases which are the basis of
demand for new spectrum for 5G.

11. HUAWEI TECHNOLOGIES 11/16
Vertical/multi-tiered sharing
 Two-tier sharing between a new user and an incumbent
can already be a challenge.
 Is there merit in considering the more complicated multiple tiers
before exploring simpler options?
1: Incumbents
2: Licensed
3: Unlicensed
priority
?

12. HUAWEI TECHNOLOGIES 12/16
Vertical/multi-tiered sharing
Incumbent
Band “A”
3-tier (shared)
incumbent + licensed
+ unlicensed
 Extent of demand for 3rd tier is uncertain.
 Increased risk of interference between three tiers.
 Utility of 3rd tier will be restricted.
 3-tier regulatory framework will be complex.
Multi-tiered band
Licensed
Licence exempt

13. HUAWEI TECHNOLOGIES 13/16
Vertical/multi-tiered sharing
Band “A” Band “B”
2-tier (shared)
incumbent + licensed
2-tier (shared)
incumbent + unlicensed
 Best to exhaust two-tier sharing opportunities, before
considering more complicated three-tier sharing frameworks.
 Licensed 2nd tier can best exploit the benefits of 5G for
provision of MBB and services to the Verticals.

Separate licensed and unlicensed bands
Incumbent
Licensed
Incumbent
Licence exempt

14. HUAWEI TECHNOLOGIES 14/16
Exhaust two-tier opportunities first…
Incumbents
Licensed
Unlicensed
3800 4200
Three-tiered
400 MHz
Incumbents
Licensed
3800 4200
Incumbents
200 120 255 125 75 500
5150 5925Unlicensed
6425
Two-tiered


400 MHz
5/6GHzC-Band
C-Band


15. HUAWEI TECHNOLOGIES 15/16
Horizontal sharing
 It is important that licensing and licence exemption are considered in different
bands, to ensure sufficient bandwidth for both models and to minimize risk of
interference.
 Similarly, to the extent that different flavours of licensed usage rights might be
required, it is important that these are considered in distinct sub-bands
of an awarded band.
 Introduction of different flavours of licensed usage rights should be based on
market demand. This requires regulators to engage with stakeholders
to identify suitable options.
 The sub-bands/bandwidths associated with different flavours of licensed
usage right should be decided through the auction process, for an economically
optimum outcome.
 Sub-bands could be available to a diverse range of users (MNOs or Verticals)
through licensing and/or through secondary market (leasing).

16. HUAWEI TECHNOLOGIES 16/16
Conclusions
LSA
Vertical
sharing
Horizontal
sharing
Exclusive
use
DSA
26 GHz
5G will need to share with incumbents.
This can be achieved via a range of
regulatory frameworks. LSA is one
possible approach to implement
database-assisted sharing.
Predictable/reliable QoS is
the basis of demand for
new 5G spectrum.
Dynamic availability of spectrum
is a disincentive to investment in
network infrastructure.
Avoid complex multi-tiered
sharing, where simpler
options are available:
separate licensed and
unlicensed bands.
if different flavours of licensed
usage rights are considered,
apply these in distinct sub-bands.
Do not pre-define the target users
of any sub-band: allow the market
to decide the most appropriate
user for each flavour.
5G network slicing allows MNOs to serve
diverse applications, with benefits from
reliable QoS in licensed spectrum.
Spectrum leasing by licensees can allow
new business models to develop
if/when required by the market.

17. Thank you
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