ETSI ES 203 228 V1.1.2 (2016-01)

Environmental Engineering (EE); Assessment of mobile network energy efficiency

RES/EE-EEPS23

General Information

• Status: Published
• Publication Date: 27-Jan-2016
• Technical Committee: EE EEPS - EE Eco Environmental Product Standards
• Current Stage: 12 - Completion
• Due Date: 03-Feb-2016
• Completion Date: 28-Jan-2016
• Mandate: M/462

Standards Content (Sample)

ETSI ES 203 228 V1.1.2 (2016-01)






ETSI STANDARD
Environmental Engineering (EE);
Assessment of mobile network energy efficiency

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2 ETSI ES 203 228 V1.1.2 (2016-01)



Reference
RES/EE-EEPS23
Keywords
access, base station, energy efficiency, GSM,
LTE, mobile, network, radio, UMTS
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Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Network under test definition . 9
4.1 Introduction . 9
4.2 Test parameter categorization . 10
4.3 Network classification . 11
4.3.0 Introduction of network classification . 11
4.3.1 Demography . 11
4.3.2 Topography . 12
4.3.3 Climate zones . 12
4.3.4 Additional classification classes . 13
5 Metrics for energy efficiency assessment. 13
5.0 Introduction of clause . 13
5.1 Energy Consumption metrics . 13
5.2 Performance metrics . 14
5.3 Mobile Network Energy efficiency metrics . 14
6 Measurement of energy efficiency . 15
6.0 Introduction of clause . 15
6.1 Time duration of the measurement . 15
6.2 Measurement procedures . 15
6.2.1 Measurement of Energy Consumption . 15
6.2.2 Measurement of capacity . 15
6.2.3 Determination of coverage area . 16
6.2.3.0 Introduction . 16
6.2.3.1 Geographic coverage area . 16
6.2.3.2 Coverage ratio/effective coverage area . 16
7 Extrapolation for overall networks . 18
7.0 Extrapolation approach . 18
7.1 Extrapolation method . 19
7.1.0 Introduction of extrapolation method . 19
7.1.1 Statistical information about Demography . 19
7.1.2 Statistical information about Topography . 19
7.1.3 Statistical information about Climate zones . 19
7.2 Extrapolation reporting tables . 19
7.2.0 Introduction of extrapolation reporting tables. 19
7.2.1 Reporting extrapolation based on Demography . 20
7.2.2 Reporting extrapolation based on Topography . 20
7.2.3 Reporting extrapolation based on Climate zones . 20
8 Assessment report . 21
8.0 Introduction of assessment report . 21
8.1 Report of Network Area under test . 21
8.2 Report of sites under test . 23
8.3 Report of Site measurement . 24
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9 Implementation guidelines . 24
Annex A (informative): Implementation examples . 26
A.1 Implementation examples. 26
A.2 Examples of reporting data . 26
History . 31

ETSI

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Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This ETSI Standard (ES) has been produced by ETSI Technical Committee Environmental Engineering (EE).
The present document was developed jointly by ETSI TC EE and ITU-T Study Group 5. It will be published
respectively by ITU and ETSI as Recommendation ITU-T L.1330 and ETSI Standard ETSI ES 203 228, which are
technically-equivalent.
Moreover the present document has been developed in collaboration with 3GPP SA5 and RAN3; GSMA has also given
valuable suggestions and contributions.
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Introduction
The present document deals with the definition of metrics and methods to measure energy efficiency performance of
Mobile Radio Access Networks and adopts an approach based on the measurement of such performance on small
networks, for feasibility and simplicity purposes. The same approach was introduced also in ETSI TR 103 117 [i.1]; the
measurements in testing laboratories of the efficiency of the Base Stations is the topic treated in ETSI ES 202 706 [i.2].
The measurement of this performance is useful for many reasons, and an implementation guidelines clause is given
(clause 9) to help using the present document in the most convenient way.
The present document provides also an extrapolation method to extend the applicability of the assessment of energy
efficiency to wider networks (clause 7).
The general outcome of the application of the method specified in the present document is based on the "Assessment
report" introduced in clause 8. An example of application of the method is given for better readability and ease of use in
annex A.
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1 Scope
The present document is aimed at defining the topology and level of analysis to assess the energy efficiency of mobile
networks. Within the scope of the present document there is the radio access part of the mobile networks, and namely
there are radio base stations, backhauling systems, radio controllers and other infrastructure radio site equipment. The
covered technologies are GSM, UMTS and LTE (including LTE-A). In particular the present document defines metrics
for mobile network energy efficiency and methods for assessing (and measuring) energy efficiency in operational
networks. The purpose of the present document is to allow better comprehension of networks energy efficiency.
The present document deals with both a homogeneous and heterogeneous "network" considering a network whose size
and scale could be defined by topologic, geographic or demographic boundaries. For networks defined by topologic
boundaries, a possible example of a network covered by the present document consists of a control node (whenever
applicable), its supported access nodes as well as the related network elements. Networks could be defined by
geographic boundaries, such as city-wide, national or continental networks and could be defined by demographic
boundaries, such as urban or rural networks.
The present document applies to the so-called "partial" networks where energy efficiency is measured in standardized
way. The specification extends the measurements in partial networks to wider so-called "total" networks energy
efficiency estimations (i.e. the network in a geographic area, the network in a whole country, the network of a MNO,
etc.).
Terminal (end-user) equipment is outside the scope of the present document and is not considered in the energy
efficiency measurement.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI TS 125 104: "Universal Mobile Telecommunications System (UMTS); Base Station (BS)
radio transmission and reception (FDD) (3GPP TS 25.104)".
[2] ETSI TS 136 104: "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station
(BS) radio transmission and reception (3GPP TS 36.104)".
[3] ETSI TS 132 425 (V12.0.0): "LTE; Telecommunication management; Performance Management
(PM); Performance measurements Evolved Universal Terrestrial Radio Access Network
(E-UTRAN) (3GPP TS 32.425 version 12.0.0 Release 12)".
[4] ETSI TS 132 412 (V11.1.0): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); LTE; Telecommunication management;
Performance Management (PM) Integration Reference Point (IRP): Information Service (IS)
(3GPP TS 32.412 version 11.1.0 Release 11)".
[5] ETSI TS 123 203 (V12.7.0): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); LTE; Policy and charging control architecture
(3GPP TS 23.203 version 12.7.0 Release 12)".
[6] ETSI TS 136 314: "LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN);
Layer 2 - Measurements (3GPP TS 36.314)".
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7 ETSI ES 203 228 V1.1.2 (2016-01)
[7] ETSI TS 152 402 (V11.0.0): "Digital cellular telecommunications system (Phase 2+);
Telecommunication management; Performance Management (PM); Performance measurements -
GSM (3GPP TS 52.402 version 11.0.0 Release 11)".
[8] ETSI TS 132 405 (V11.1.1): "Digital cellular telecommunications system (Phase 2+); Universal
Mobile Telecommunications System (UMTS); LTE; Telecommunication management;
Performance Management (PM); Performance measurements; Universal Terrestrial Radio Access
Network (UTRAN) (3GPP TS 32.405 version 11.1.1 Release 11)".
[9] ETSI ES 202 336-12: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (power, cooling and building environment systems used in
telecommunication networks); Part 12: ICT equipment power, energy and environmental
parameters monitoring information model".
[10] ISO/IEC 17025 (2005): "General requirements for the competence of testing and calibration
laboratories".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
reference document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI TR 103 117: "Environmental Engineering (EE); Principles for Mobile Network level energy
efficiency".
[i.2] ETSI ES 202 706: "Environmental Engineering (EE); Measurement method for power
consumption and energy efficiency of wireless access network equipment".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
backhaul equipment: equipment used to connect base stations to the core network, or to other BSs (like X2 in LTE)
Base Station (BS): generic term used for network component which serves one cell or more cells and interfaces the
user terminal (through air interface) and a radio access network infrastructure
distributed RBS: BS architecture which contains radio heads (RRH) close to the antenna element and a central element
connecting BS to network infrastructure
Energy Efficiency (EE): relation between the useful output and energy/power consumption
energy saving feature: feature which contributes to decreasing the energy consumption compared to the case when the
feature is not implemented
integrated BS: BS architecture in which all BS elements are located close to each other for example in one or two
cabinets
NOTE: The integrated BS architecture may include TMA close to antenna.
Mobile Network (MN): set of equipment from the radio access network or sub-network that are relevant for the
assessment of energy efficiency
Mobile Network Coverage Energy Efficiency: ratio between the area covered by the network in the Mobile Network
under investigation and the energy consumption
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8 ETSI ES 203 228 V1.1.2 (2016-01)
Mobile Network Data Energy Efficiency: ratio between the performance indicator based on Data Volume and the
energy consumption when assessed during the same time frame
Mobile Network Energy Consumption: overall energy consumption of equipment included in the MN under
investigation
Mobile Network Energy Efficiency: Energy Efficiency of a Mobile Network
Mobile Network Operator (MNO): operator that manages one or more Mobile Networks
Mobile Network Operator penetration ratio: percentage of traffic served by an MNO in the area where it is active
Mobile Network Performance Delivered: performance indicator of the MN under investigation, defined as the data
volume delivered by the mobile network under investigation during the time frame of the energy consumption
assessment
power consumption: power consumed by a device to achieve an intended application performance
radio access network: telecommunications network in which the access to the network (connection between user
terminal and network) is implemented without the use of wires and that is part of GERAN, UTRAN or E-UTRA
networks defined by 3GPP
telecommunication network: network operated under a license granted by a national telecommunications authority,
which provides telecommunications between Network Termination Points (NTPs)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
3GPP 3G (mobile) Partnership Project
BH Backhaul
BS Base Station
CoA Coverage Area
CR Coverage Ratio
CS Circuit Switched
CS/PS Circuit Switched/Packet Switched
DCA Designed Coverage Area
DL DownLink
DP Dominant Penetration
DU Dense Urban
DV Data Volume
DV Data Volume of the Mobile Network
MN
EC Energy Consumption
ECA Effective Coverage Area
EC Energy Consumption of the Mobile Network
MN
EE Energy Efficiency of the Mobile Network
MN
E-UTRA Evolved UMTS Terrestrial Radio Access Network
FAO Food and Agriculture Organization
GERAN GSM/EDGE Radio Access Network
GHG GreenHouse Gas
GSM Global System for Mobile communication
GSMA GSM Association
ICT Information Communications Technology
ITU International Telecommunications Union
ITU-T International Telecommunications Union - Telecommunication
LTE Long Term Evolution
MDT Minimization of Drive Tests
MJ MegaJoule
MN Mobile Network
MNO Mobile Network Operator
MP Minor Penetration
NA Not Applicable
NDP Non Dominant Penetration
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O&M Operation & Maintenance
PDF Probability Distribution Function
PS Packet Switched
PSL Packet Switched Large packages dominating
PSS Packet Switched Small packages dominating
QCI QoS Class Identifier
QoS Quality of Services
RAB Radio Access Bearer
RAT Radio Access Technology
RC Remote Controller
RF Radio Frequency
RNC Radio Network Controller
RRC Radio Resource Control
RRH Remote Radio Head
RU Rural
SCH Signalling Channel
SI Site Infrastructure
SINR Signal to Interference plus Noise Ratio
SU Sub Urban
TCH Traffic Channel
TCO Total Cost of Ownership
TMA Tower Mounted Amplifier
U Urban
UE User Equipment
UE-BS User Equipment to Base Station
UL UpLink
UMTS Universal Mobile Telecommunication Service
UN United Nations
USA United States of America
UTRAN UMTS Terrestrial Radio Access Network
X2 Interface allowing to interconnect eNBs with each other
4 Network under test definition
4.1 Introduction
The Mobile Radio Access Network (MN) under investigation shall include all the equipment that is necessary to run a
radio access network or sub-network. Equipment to be included in the Mobile Network under investigation:
• Base Stations (see ETSI TS 125 104 [1] and ETSI TS 136 104 [2]):
- Wide area BS.
- Medium range BS.
- Local Area BS.
- Home BS.
NOTE: Home BS (and WiFi access points) are not dealt with in the present document, being possibly considered
for future versions.
• Site equipment (air conditioners, rectifiers/ batteries, fixed network equipment, etc.).
• Backhaul equipment required to interconnect the BS used in the assessment with the core network.
• Radio Controller (RC).
Power consumption and energy efficiency measurements of individual mobile network elements are described in
several standards (for example ETSI ES 202 706 [i.2] for radio base stations). The present document describes energy
consumption and MN energy efficiency measurements in operational networks.
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10 ETSI ES 203 228 V1.1.2 (2016-01)
As a complete and detailed energy consumption measurement of the complete network of a country or MNO is in most
cases impossible or economically not viable, the total network is split into a small number of networks with limited size
("sub-networks").
These sub-networks are defined to represent some specific characteristics, for example:
• capacity limited networks representing urban and dense urban networks;
• sub-urban networks with high requirements for coverage and capacity;
• rural networks, which are usually coverage limited.
The size and scale of the sub-networks are defined by topologic, geographic or demographic boundaries. For networks
defined by topologic boundaries, a possible example of a network covered by the present document consists of a Radio
controller (whenever applicable), its supported access nodes as well as the related network elements. Networks could be
defined by geographic boundaries, such as city-wide, national or continental networks and could be defined by
demographic boundaries, such as urban or rural networks.
The sub-networks analysed might consist of macro-only base stations or heterogeneous networks or whatever is actually
implemented in real networks.
The tests defined in the present document for sub-networks provide the basis to estimate energy efficiency for large
networks of one MNO or within an entire country, applying the extrapolation methods described in clause 7.

Figure 1: Network under test definition
4.2 Test parameter categorization
Metrics used for the energy efficiency assessment of mobile networks require the definition and collection of a range of
parameters and variables. These are separated into two categories:
1) Parameters and variables required to calculate the network energy efficiency.
2) Parameters needed to allow network energy efficiency evaluation.
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The first category describes a set of network variables as described in clause 5 (energy consumption, delivered bits,
coverage) to be used to calculate the energy efficiency.
The second category includes parameters which are not directly required in the energy efficiency calculation. These
parameters describe the network characteristics, such as geographical conditions, population density, coverage area,
targeted data rates, climate zones, etc. and are used to interpolate from the measured sub-network to a larger network as
described in clause 7. These parameters can be used to interpret variations in energy efficiency results of different
networks.
Table 1: Test parameter categorization
Category Parameter Remarks
1 EC Measured network energy consumption
MN
1 Capacity As defined in clause 5.2
1 Coverage area As defined in clause 6.2.3
2 Coverage ratio As defined in clause 6.2.3
2 Demography Population density as defined in clause 4.3.1
2 Topography As defined in clause 4.3.2
2 Climate zones As defined in clause 4.3.3
2 Informative classes As defined in clause 4.3.4
2 CS/PS data ratio Describes the fraction of CS traffic vs. PS traffic in the network

4.3 Network classification
4.3.0 Introduction of network classification
To allow an extrapolation from the measured sub-networks ("partial" networks) to a complete network ("total" or
"overall" networks), the test areas shall be classified into different categories as defined by Network classification.
The environmental classes used for Network classification are: demography, topography and climate classes. These
classes are described in the following clauses.
4.3.1 Demography
For the test pu
...