Activities and Principles Applied for the Internet of Things

ECC Activities and Principles Applied for the IOT
Future Spectrum Use
Thomas Weber, ECO Spectrum Manangement
The 4th Annual Internet of Things Europe, 12-13 November, Management Centre
Europe, Brussels
Work in the ECC on Smart Grids / Smart Metering
(and others – under the UHF Roadmap)
Work in ECC WGFM SRDMG was triggered by 4 ETSI System Reference Documents:
ETSI SRDoc TR 102 649-2 (SRD and RFID appl, incl SM/SG, 870-876/915-921 MHz)
ETSI SRDoc TR 102 886 (SM in 873-876 MHz)
ETSI SRDoc TR 103 055 (SM/SG in 870-876 MHz)
ETSI SRDoc TR 103 056 (Alarms/Social alarms 870-876 MHz)
ECC WGSE is conducting spectrum compatibility studies
ECC WGFM SRD/MG collected spectrum inventory information and creates ECC
Report 189 which includes identification of the objectives/benefits, assessment of the
demand/of the ETSI request , need for harmonisation as well proposal for choice of
frequency regulatory framework and frequency options for each application
Full pan-European immediate harmonisation unlikely because of governmental services
in all or parts of the 870-876/915-921 MHz bands in 11 (of 48) countries.
SRD Strategy as applied under ECC Report 189 under
Frequency Management will focus on technology and application-neutral solutions to keep flexibility,
avoid spectrum fragmentation and foster innovations. At the same time, some applications need very
predictable sharing environments -> no special application categories in UHF for SM, alarms or
automotive applications, sharing is rather based on application-neutral medium access conditions.
Most applications are using Low duty Cycle / Duty Cycle. Some are organised in ICT networks (some
SM, M3N-> Metropolitan Meshed Machine Networks).
Smart Grids: seen almost exclusively on electricity generation side. Reliability, availability
requirements are very high (e.g. in the order of 99.9995%) and security issues attached. Seen as
incompatible with the SRD concept (no harmful interference, no protection). Either wired or use of
other available existing radio regulations (mobile networks, PMR/PAMR, Fixed Services)
Smart Metering
Metering scenarios, one can distinguish between
(a) meter - home gateway
(b) meter - neigbour gateway
(c) meter - network gateway
M3N combines the smart metering and smart grids by means of meshed networks
No exclusive frequency ranges foreseen
The use of the frequency range 169,4-169,8125 MHz is in the process of being revised and is available
for smart metering (complementary to UHF)
Sub-GHz bands between 400-500 MHz or 800-1000 MHz are the most cited in the discussions for
wireless metering technologies, offering a combination of large coverage area and low bit rates with
smaller coverage distance and higher bit rates.
The results of detailed investigations performed also confirm this view due to the propagation
characteristics above 1 GHz limit drastically the possibility to reach all the endpoint / metering sensors
in a network (often inside, or even in basements).
Proposal under Study (lower band)
TR 102649-2
Generic / non – specific SRDs
25mW e.r.p. with (L)DC of up to 1% or
LBT + AFA or equivalent techniques
TR 102649-2: It is expected that the
boundary between non-specific and specific
SRDs will lie somewhere between 873 MHz
and 874 MHz. The exact frequency will be
determined following the compatibility study
when the impact of GSM-R on the upper part
of the band has been quantified
-ES 202630
DC 1%
Specific SRDs
transmit power
& (L)DC (Note1)
Draft “SRDs with LDC” (ES 202630)
100mW e.r.p. & (L)DC &
200kHz spacing
“Smart Metering” (TR102886)
100 mW / 200 kHz / DC<2.5%
Aloha or CSMA/CS access
“M3N and SM” (TR103055) DC
1,25% / 100mW e.r.p. / 200kHz
“Alarm / Social Alarm” (TR103056)
dedicated 400kHz with LDC / 25mW e.r.p.
Existing SRDs
Note 1: proposed transmit power + (L)DC restriction:
- 1 mW e.r.p.
- 25 mW e.r.p.
- 100 mW e.r.p.
Up to 5 % D.C
Up to 1 % D.C
Up to 0,1 % D.C
fC 919,9MHz
4W e.r.p. / BW: 400kHz
fC 918,7MHz
4W e.r.p. / BW: 400kHz
TR 102649-2
fC 917,5MHz
4W e.r.p. / BW: 400kHz
fC 916,3MHz
4W e.r.p. / BW: 400kHz
Proposal under study (upper band)
< -18 dBm e.r.p/100 kHz. per tag and fc ± 1 000 kHz for tag response
25mW e.r.p. with 1%DC or LBT / AFA and 200kHz spacing
Application specific
-TR103056, TR 102 791
“Alarm/Social Alarm”, sharing with other SRDs (TR103056)
2*200kHz with LDC / 25mW e.r.p.
Assistive Listening Devices (TR 102 791) 10 dBm/100%DC
ER-GSM (base stations)
“GSM” mobile
Work in the TV White Spaces 470-790 MHz
- An outcome of the first phase of SE43 activity relating protection of PMSE (ECC Report 159):
Sensing approach considered problematic solution;
A geo-location database considered feasible solution;
Safe harbour channel (s).
- Chapter 11 ”List of areas requiring further study” (ECC Report 159) suggests to continue technical
and regulatory considerations regarding protection of PMSE service.
ECC Report 186 (technical supplement to ECC Report 159) providing results on the outstanding
issues – currently under public consultation
Principle results may also be used in other bands
ECC Report 185 - currently under public consultation – covering geo-location w/o sensing – e.g.
requirements for master-slave WSD configurations and link to the geolocation database.
No definition of requirements via industry request/ETSI Srdoc !
WRC-15 Agenda Items 1.1 and 1.2 -> upper frequency edge may be lower in the future
Participating in ECC work: where to start
Thanks for your attention
[email protected]

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