Executive summary of the SG11 meeting (Geneva, 6-15 February 2017)
Study Group 11 meeting was held in Geneva, from 6-15 February 2017 and was attended by 90 delegates from 27 countries. Along with face-to-face meetings, most sessions from various Questions or joint Questions meetings were supported by remote participation capabilities.
The SG11 meeting was co-located with:
-
SG13 (6-17 February 2017);
-
Steering Committee of the SG11RG-RCC (7 February 2017);
- JCA-SDN (9 February 2017);
- 3rd ITU-T CASC meeting (13 February 2017);
- Steering Committee of the SG11RG-AFR (13 February 2017).
1 Approved and Consented Recommendations (ITU-T A.8)
The following table shows the ‘Consented’ draft Recommendations
# Question WP/11 Draft new/revised Rec. No. Title Final TD PLEN A.5 justification
1 1/11 1/11 ITU-T Q.3053
(formerly Q.Arc-IPSMS) Signalling architecture and requirements for IP based short message service over ITU-T defined NGN
TD 159 TD 148 2 2/11 1/11 ITU-T Q.3630 v.1 Inter-IMS Network to Network Interface (NNI)
TD 140 TD 127 3 5/11 1/11 ITU-T Q.3713 (formerly Q.BNG-Pool) Signalling requirements for BNG (Broadband Network Gateway) pool
TD 138 Rev.1 N/A
2. Supplements, Handbooks, Technical Papers, Guidelines and Corrigenda
2.1 Supplements
No Supplements were approved at this meeting.
2.2 Guidelines
The following table shows the approved draft Guidelines
# Question WP/11 Guidelines Title Final TD A.5 justification
1 CASC ITU-T SG11 Guideline ITU-T CASC procedure to appoint ITU-T technical experts
TD 144 N/A
2.3 Handbooks
No Handbooks were approved at this meeting.
2.4 Technical Papers
The following table shows the approved draft Technical Report
# Question WP/11 Technical Report Title Final TD A.5 justification
1 15/11 3/11 Survey Report Survey report on counterfeit ICT devices in Africa region
TD 1199 Rev.1 N/A
2.5 Corrigenda
No Corrigenda were approved at this meeting.
3 SG11 Structure and Management
The structure and management of SG11 as presented in TD 62 Rev.5 was endorsed by the meeting
SG11 structure and Management team is therefore confirmed as follows:
WP1: Signalling requirements and protocols for emerging telecommunications networks
(Questions: 1, 2, 3, 4, 5/11)
WP1 Chairman: Xiaojie Zhu (China Telecom),
WP1 Vice-chairman: Vacant
WP2: Control and management protocols for IMT-2020
(Questions: 6, 7, 8/11)
WP2 Chairman: Shin-Gak Kang (ETRI)
WP2 Vice-chairman: Vacant
WP3: Conformance and interoperability testing, combating counterfeit ICT and mobile device theft
(Questions: 9, 10, 11, 12, 13, 14, 15/11)
WP3 Chairman: Kaoru Kenyoshi (NEC Corporation)
WP3 Vice-chairman: Awad Ahmed Ali Hmed Mulah (NTC)
WP3 Vice-chairman: João Alexandre MONCAIO ZANON (NTA)CASC: Conformity Assessment Steering Committee
Chairman: Isaac BOATENG (NCA)
Vice-chairman: Khoa NGUYEN VAN (VNTA, MIC)
Vice-chairman: Karim LOUKIL (CERT)
SG11RG-AFR: ITU-T SG11 Regional Group for Africa
Chairman: Isaac BOATENG (NCA)
Vice-chairman: Karim LOUKIL (CERT)
SG11RG-RCC: ITU-T SG11 Regional Group for RCC
Chairman: Alexey BORODIN (Rostelecom)
4 Questions
There were no changes to the Questions texts at this meeting.
5 Liaison officers and Rapporteurs
SG11 approved the appointment of the new Rapporteurs and Associate Rapporteurs as follows:
QUESTION CONTACT
Q1/11 (WP1/11)
Signalling and protocol architectures in emerging telecommunication environments and guidelines for implementations
Huan DENGRapporteur
Email:
denghuan.bri@chinatelecom.cn Q2/11 (WP1/11)
Signalling requirements and protocols for services and applications in emerging telecommunication environments
Cheng LIRapporteur
Email:
licheng@caict.ac.cn Q3/11 (WP1/11)
Signalling requirements and protocols for emergency telecommunications
Xiaojie ZHUActing rapporteur
Email:
zhuxj@gsta.com Q4/11 (WP1/11)
Protocols for control, management and orchestration of network resources
Ying CHENGRapporteur
Email:
chengying10@chinaunicom.cn Q5/11 (WP1/11)
Protocols and procedures supporting services provided by broadband network gateways
Junfeng MARapporteur
Email:
majunfeng@caict.ac.cn Q6/11 (WP2/11)
Protocols supporting control and management technologies for IMT-2020
Haining WANGRapporteur
Email:
wanghn.bri@chinatelecom.cn Q7/11 (WP2/11)
Signalling requirements and protocols for network attachment including mobility and resource management for future networks and IMT-2020
Jongmin LEERapporteur
Email:
jminlee@sk.com Q8/11 (WP2/11)
Protocols supporting distributed content networking and information centric network (ICN) for future networks and IMT-2020, including end-to-end multi-party communications
Shin-Gak KANGRapporteur
Email:
sgkang@etri.re.kr Q9/11 (WP3/11)
Service and networks benchmark testing, remote testing including Internet related performance measurements
Martin BRANDRapporteur
Email:
martin.brand@a1telekom.at Q11/11 (WP3/11)
Protocols and networks test specifications; frameworks and methodologies
Martin BRANDRapporteur
Email:
martin.brand@a1telekom.at Q12/11 (WP3/11)
Testing of Internet of things, its applications and identification systems
Steve LIANGRapporteur
Email:
liangs@ucalgary.ca Q13/11 (WP3/11)
Monitoring parameters for protocols used in emerging networks, including cloud computing and software-defined networking/network function virtualization (SDN/NFV)
Minrui SHIRapporteur
Email:
shimr@sttri.com.cn Q14/11 (WP3/11)
Cloud interoperability testing
Nan CHENRapporteur
Email:
chenn@gsta.com Q15/11 (WP3/11)
Combating counterfeit and stolen ICT equipment
João Alexandre MONCAIO ZANONRapporteur
Email:
zanon@anatel.gov.br The final list of Rapporteurs and Associate Rapporteurs can be found in TD 13 Rev.1 (GEN/11).
SG11 approved the appointment of new liaison officers and representatives as follows:
ENTITY CONTACT
CITEL
Inter-American Telecommunication Commission
João Alexandre MONCAIO ZANONLiaison officer
E-mail:
zanon@anatel.gov.br E-health related studies in SG11
E-health related studies in SG11
Cheng LI Liaison officer
E-mail:
licheng@caict.ac.cn GSMA
GSM Association
Xiaojie Zhu Liaison officer
E-mail:
zhuxj@gsta.com ISO/IEC JTC 1/SC 6
ISO/IEC JTC 1/SC 6
Shin-Gak KANG Liaison officer
E-mail:
sgkang@etri.re.kr ITU-R SGs
ITU-R Study Groups
Xiaojie ZHU Liaison officer
E-mail: zhuxj@gsta.com
ITU-T SG13
ITU-T Study Group 13 (NGN, FN, IMT-2020)
Shin-Gak KANG Liaison officer
E-mail:
sgkang@etri.re.kr ITU-T SG16
ITU-T Study Group 16 (Multimedia)
Shin-Gak KANG Liaison officer
E-mail:
sgkang@etri.re.kr ITU-T SG20
Internet of things (IoT) and smart cities and communities (SC&C)
Kaoru KENYOSHI Liaison officer
E-mail: kaoru.kenyoshi@emea.nec.com
JCA-AHF
Joint Coordination Activity on Accessibility and Human Factors
Kaoru KENYOSHI Liaison officer
E-mail:
kaoru.kenyoshi@emea.nec.com JCA-IoT and SC&C
Joint coordination activity on Internet of Things and Smart Cities and Communities
Kaoru KENYOSHI Liaison officer
E-mail:
kaoru.kenyoshi@emea.nec.com JCA-SDN
Joint Coordination Activity on Software-Defined Networking
Jia HE Liaison officer
E-mail:
hejia@huawei.com SCV
Standardization Committee for Vocabulary
João Alexandre MONCAIO ZANONVocabulary Rapporteur
Email:
zanon@anatel.gov.br RCC
Regional Commonwealth in the field of Communications
Aleksey BORODIN Liaison officer
E-mail: alexey.borodin@rt.ru /
borodin.msk@mail.ru
The final list of Liaison Officers and representatives can be found in TD 12 Rev.4 (GEN/11).
6 Action plan of ITU-T SG11 for the new Study Period (2017-2020)
During the first meeting of SG11, the Chairman requested SG11 Management team to give a short overview that highlights their plans for the current Study Period. These documents became a basis for the SG11 action plan which lists the key SG11 priorities for the next four years. The action plan is available in TD 173 (GEN/11).
7 SDN 5G/IMT-2020
SG11 made progress on ongoing work items which are related to SDN as follows:-
ITU-T Q.SAN-MIM: Signalling requirements of SDN-based access networks with media independent management capabilities;
-
ITU-T Q.NEA-REQ: Signalling Requirements of NFV Entity Management for Network Attachment;
- ITU-T X.mp2p-mssr: Managed peer-to-peer communications: Multimedia Streaming Signalling Requirements;
- X.mp2p-mspp: Managed peer-to-peer communications: Multimedia Streaming Peer Protocol;
- X.mp2p-msomp: Managed peer-to-peer communications: Multimedia Streaming Overlay Management Protocol;
Most of them will be proposed for consent at the next meetings (WP2/11 meeting, July 2017) and the next SG11 meeting (8-17 November 2017).
More information on these activities is available in the WP2/11 report, TD 117 (GEN/11).
8 SS7 security
SG11 started working on SS7 security through creating an amendment to ITU-T Q.731.3. The output document which contains the draft amendment is available in TD 137 (GEN/11).
The Chairman of SG11 also invited Mr Raymond Tu to give a presentation of a mechanism for authentication for caller id which was highlighted in his paper submitted to ITU Kaleidoscope 2016. For more details please see TD 79 (GEN/11) and TD 60 (GEN/11).
9 Third meeting of the ITU-T Conformity Assessment Steering Committee (CASC)
The third meeting of the CASC was addressed in two sessions on Monday 13 February 2017 from 9:30am and was chaired by Mr Isaac Boateng.
The CASC agreed the Guidelines "ITU-T CASC procedure to appoint ITU-T technical experts" which was further approved at the closing meeting of ITU-T SG11. The output document can be found in TD 144 (GEN/11).
The CASC was informed by IECEE about the received responses on IECEE inquiry on ITU Recommendations to be used for certification. Among IECEE members which provided feedback are: Italy, Slovenia, Switzerland and Viet Nam. The CASC noted that there is market need for conformance testing against ITU-T Recommendations. The meeting then decided to inform all SGs on the responses of IEC enquiry on testing against ITU-T Recs. The outgoing LS is available in TD 163 (GEN/11).
The CASC continues collaborating with IECEE through established Task Force (TF) "Certification Management Committee (CMC) Task Force ITU Requirements". The Chairman of CASC presented the list of CASC representatives who were nominated to this TF. The CASC will be informed on the outcome of the TF meetings at the next CASC meetings. There are the following meetings of CASC in 2017:-
12 July 2017 (e-meeting);
-
9 and 15 November 2017 (physical meetings, Geneva, during SG11 meeting).
The meeting report can be found in TD164 (GEN/11). More details are available on the ITU-T CASC web page.10 VoLTE/ViLTE interconnection
SG11 made progress on ongoing work items Q.30xx_VoLTE_Interconnection_FW "Framework of interconnection of VoLTE/ViLTE-based networks" and revised Recommendation ITU-T Q.1912.5 "Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control protocol or ISDN User Part". Both documents are planned for consent during next the SG11 meeting (8-17 November 2017).
In addition, SG11 decided to start two new work items which deal with VoLTE issues. Among them are:
-
Q.suppl.VoLTE_ETS_Interconnection "Signalling requirements for interconnection between VoLTE-based network and other networks supporting emergency telecommunications service (ETS)";
-
Q.VoLTE_INT_TEST "VoLTE/ViLTE interconnection testing for interworking and roaming scenarios including relevant QoS/QoE testing".
The discussion of these work items will continue at the rapporteur group meetings, including joint meetings with ETSI TC INT, which are scheduled to take place in March and June 2017. The full list of interim meetings is available on the SG11 web page.
11 Implementation of ITU C&I Programme
According to received inputs from different ITU-T SGs, ITU-T SG11 updated the reference table of ITU-T Recommendations suitable for C&I testing and the list of pilot projects on conformance testing against ITU-T Recommendations. The information was updated on the ITU C&I Portal accordingly:12 Internet related performance measurements
SG11 continue working on the ongoing draft Recommendation ITU-T Q.3961. It was agreed to align the title of draft ITU-T Q.3961 with the current mandate of SG11. The agreed title of the draft ITU-T Q.3961 is "Testing methodologies of Internet related performance measurements including e2e bit rate within the fixed and mobile operator’s networks".
The text was improved and the group decided to continue improving this document at the relevant Rapporteur groups as indicated on the SG11 web page. The meeting report can be found in TD 109 (GEN/11). 13 Collaboration with ETSI TC INT
SG11 continue collaborating with ETSI TC INT through joint activities related to the following areas:
-
Framework of Interconnection of VoLTE/ViLTE networks;
-
Testing specifications of VoLTE/ViLTE interconnection;
- Internet related performance measurements.
The next joint meeting of Q2, 9 and 11/11 and ETSI TC INT is scheduled to take place in Vienna (hosted by Austria Telekom) from 28-30 March 2017. All details are available on the SG11 web page.
14 Combating counterfeit ICT and mobile device theft
SG11 approved the survey report on counterfeit ICT devices in Africa region, TD 1199 Rev.1 (GEN/11). This report will be posted as a Technical Report.
SG11 started a new work item ITU-T Q.FW_CSM" Framework for combating the use of Stolen Mobile ICT Devices".
Two draft technical reports have been revised, as follows:
-
Q.FW_CCF: Framework for solution to combat counterfeit ICT Devices
-
TR-CF_BP: Technical Report - Guidelines on Best Practice and Solutions for Combating Counterfeit ICT
SG11 also decided to create the plans for Implementation of WTSA-16 Resolution 96 and Resolution 97 according to the received contributions. More details are available in the WP3/11 report, TD 118 Rev.1 (GEN/11).
15 Testing of Internet of things, its applications and identification systems
SG11 started a new work item Q.Het_IoT_Gateway_Test which will describe the testing methodology of the heterogeneous network gateway which is to be used for communication among IoT devices.
Also, SG11 made progress on ongoing work items which are related to IoT testing, as follows:
-
Q.39_IoT_MN_test "The architecture and facilities of Model network for IoT testing"
-
Q.FW_IoT/Test "Framework for IoT Testing"
- Q.39_FW_Test_ID_IoT "The framework of testing of identification systems used in IoT"
16 Outgoing Liaison Statements
The following table shows the list of the fifteen agreed outgoing liaison statements. See TD 10 (GEN/11)
# Q (s) For: To: Title Reference
1 2/11 Info SG2 LS/o on work item Q.30xx_VoLTE_Interconnection_FW [to ITU-T SG2]
TD 139 2 4/11 Info SG13, JCA-SDN, ONUG LS/o on recent SDN-related developments in SG11: one new work item [to ITU-T SG13, JCA-SDN, ONUG]
TD 134 3 5/11 Info SG13, JCA-SDN LS/o on recent SDN-related progress in Q5: one consented Recommendation plus one new work item [to SG13, JCA-SDN]
TD 143 4 9/11 Info IETF BMWG LS/o/r on SG11's views on IETF BMWG - LS 1 -E and IETF BMWG - LS 2 -E (LS/i on proposal to develop a Benchmarking Methodology for ITU-T Recommendation Y.1731 OAM Performance) (reply to IETF BMWG LS1&2) [to IETF BMWG]
TD 120 Rev.1 5 9/11 Info ITU-D SG1, All ITU-T Study Groups, TDAG, TSAG LS/o/r on Operational Plan for Implementation of WTSA-16 Resolution 95 (Hammamet, 2016)
TD 119 Rev.1 6 11/11 Info All ITU-T SGs LS/o on Implementation of ITU C&I Programme [to all ITU-T SGs]
TD 125 7 14/11 Action ISO/IEC JTC1 SC38 WG4 LS/o on cloud computing interoperability [to ITU-T ISO/IEC JTC1 SC38 WG4]
TD 93 8 14/11 Info SG2 LS/o/r to SG2 on Telecommunication Management and OAM Project Plan (reply to SG2-LS 155 -E) [to ITU-T SG2]
TD 92 9 14/11 Info SG13 LS/o/r to SG13 on information update in draft Supplement on Cloud Computing Standardization Roadmap (reply to SG13-LS 157 -E) [to ITU-T SG13]
TD 91 10 15/11 Action APT, ATU, CITEL, EUR, RCC ; SG2, SG5, SG3, SG17, SG20 LS/o on ITU-T SG11 work on the combat of counterfeit ICT devices and mobile device theft
TD 167 Rev.1 Info OCDE, WIPO, WTO, 3GPP, MWF, GSMA
11 All/11 Action TSAG LS/o on implementation of Resolution 44 of WTSA-16 — bridging the standardization gap between developing and developed countries [to TSAG]
TD 168 12 All/11 Info SCV LS/o/r on ongoing collaboration (reply to SCV LS11) [to SCV]
TD 169 13 All/11 Info ITU-D SG2 LS/o/r on ongoing collaboration [to ITU-D SG2]
TD 170 14 CASC Action All ITU-T Study Groups LS/o on appointment of SGs Focal Points to CASC and outcomes of CASC meeting (13 February 2017)
TD 163 15 CASC Info SG12 LS/o/r on feedback from SG12 to SG11/CASC and TSAG regarding tests of the compatibility between mobile phones and vehicle hands-free terminals (reply to SG12 LS8) [to ITU-T SG12]
TD 162 The following table shows the list of the nine new work items. See
TD 171 (GEN/11) N. Q Work item (Draft Recs) Status Title Editor Timing Ref.
2 2/11 Q.731.3-Amendment1 New Amendment for ITU-T Q.731.3 STAGE 3 DESCRIPTION FOR NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES USING SIGNALLING SYSTEM No.7 Shi Minrui China TelecomChina
shimr@sttri.com.cn Wu Tong China Telecom China
E-mail:
wutong@chinatelecom.cn 2018-02
TD 137 3 3/11
Q.suppl.VoLTE_ETS
_Interconnection
New Signalling requirements for interconnection between VoLTE-based network and other networks supporting emergency telecommunications service (ETS)
Jinlan Ma,China Telecom,China
majl.gd@chinatelecom.cn
Xiaojie Zhu,China Telecom, China
zhuxj.gd@chinatelecom.cn
2019-02
TD 151 4 3/11
Q.suppl.NGN_pri_
Interconnection
New Signalling requirements for interconnection between NGN and GSM/UMTS networks supporting priority calls
Sunil Purohit
Telecommunication Engineering Center, DoT,India ddgs.tec@gov.in
HarshSharmaTelecommunication Engineering Center, DoT, India adetngs.tec@gov.in
Mukesh Dhingra
Tata Teleservices limited (TTSL), India
mukesh.dhingra@tatatel.co.in
2019-02
TD 150 8 12/11 Q.Het_IoT_Gateway_Test New The structure of the testing of heterogeneous Internet of Things gateways in a laboratory environment Alexey Borodin
alexey.borodin@rt.ru Ruslan Kirichek
kirichek@sut.ru 2018
TD 157 9 15/11 Q.FW_CSM New Framework for Combating the use of Stolen Mobile ICT Devices João Alexandre MONCAIO ZANON
zanon@anatel.gov.br 2018-4Q
TD 165 18 Work plan for interim Working Party and Rapporteur meetings
The following represents the interim meetings plan as agreed at SG11 Plenary (Geneva, 15 February 2017). Also in TD 11 Rev.2 (GEN/11)
18.1 Working parties
Two interim Working Parties meetings will be held before the next SG11 meeting.
WP Date Place / Host Terms of reference Contact
WP1/11 12 July 2017 Geneva/TSB To finalize and consent Q.SCO
TSB/ITU Secretariat:
tsbsg11@itu.int
WP2/11 13 July 2017 Geneva/TSB
Consent ITU-T X.mp2p-mssr
Approve all WP2/11 output documents
Collaboration on WP2/11 related issues with other groups
TSB/ITU Secretariat:
tsbsg11@itu.int
18.2 Rapporteur groups
The following interim Rapporteurs’ groups meetings are agreed by SG11 Plenary (Geneva, 15 February 2017).
Question Date Place / Host Terms of reference Contact
Q4/11 15-17 May 2017 13:00-15:00 (Geneva time) e-meeting Progress Q.SCO to be ready for consent
Progress Q.PVMapping
Ying CHENG
chengying10@chinaunicom.cn
Q8/11 22-26 May 2017 e-meeting Progress all Q8/11 on-going work items Shin-Gak KANG (
sgkang@etri.re.kr)
Joint Q9/11-ETSI TC INT 27-29 June 2017
Sophia Antipolis
(ETSI HQ)
Planned
Draft Q.3961 "Testing methodologies of Internet related performance measurements including e2e bit rate within the fixed and mobile operator’s networks" Martin BRAND, martin.brand@a1telekom.at
TSB/ITU Secretariat:
tsbsg11@itu.int
Joint Q11/11-ETSI TC INT 27-29 June 2017
Sophia Antipolis
(ETSI HQ)
Planned
Draft Q.VoLTE_INT_TEST
"VoLTE/ViLTE interconnection testing for interworking and roaming scenarios including relevant QoS/QoE testing" Martin BRAND, martin.brand@a1telekom.at
TSB/ITU Secretariat:
tsbsg11@itu.int
Q3/11 3-14 July 2017 Geneva Progress Q.suppl.VoLTE_ETS_Interconnection and Q.suppl.NGN_pri_Interconnection Xiaojie ZHU
zhuxj@gsta.com Q4/11 3-14 July 2017 Geneva
Consent Q.SCO
Progress Q.PVMaaping to be ready for consent
Progress Q.SMO and Q.SVDC
Discuss new work item introduced by contributions
Review the work program and modify the Action Plan
Ying CHENG
chengying10@chinaunicom.cn
Q6/11 3-14 July 2017 Geneva
Discuss new work item proposals LSs with other related organizations
Haining WANG
wanghn.bri@chinatelecom.cn
Q7/11 3-14 July 2017 Geneva
Progress all current work items of Q7/11
Discuss new work proposals
Jongmin LEE
jminlee@sk.com Q8/11 3-14 July 2017 Geneva
Propose Consent of ITU-T X.mp2p-mssr
Progress all Q8/11 on-going works
Discuss new work proposals
Shin-Gak KANG (
sgkang@etri.re.kr)
Q13/11 3-14 July 2017 ITU/Geneva with remote facilitation Handle the input contributions
Consider new Wis Minrui SHI
shimr@sttri.com.cn Q14/11 3-14 July 2017 ITU/Geneva with remote facilitation Handle the input contributions
Consider new Wis
Progress on the open work items for Q14/11 CHEN Nan
chenn@gsta.com CASC 12 July 2017 e-meeting To consider contribution of ITU members for progressing work items of CASC and possible revision of CASC ToR to adapt to WTSA-16 Resolution 2 and Resolution 76;
To discuss progress on collaboration with existing certification programmes on the ITU-T Recommendations which are proposed to be subjects of joint certification schemes;
To update list of focal points to CASC.
To discuss documents which need to be prepared for such collaboration;
To progress the other work items of the CASC.
Isaac BOATENG
isaac.boateng@nca.org.gh
tsbcasc@itu.int
Q8/11 28 August-1 September 2017 e-meeting Progress all Q8/11 on-going work items Shin-Gak KANG (
sgkang@etri.re.kr)
Q7/11 4-7 September 2017
8 September 2017 e-meeting
CC Progress all current work items of Q7/11 and discuss new work proposals Jongmin LEE
jminlee@sk.com 19 Regional Groups’ meetings
SG11 was informed about Regional Groups’ meetings which are scheduled for 2017, as follows:
Note: the Regional Group will take place back-to-back with the
SG11 Regional Workshop for Africa on "Counterfeit ICT Devices, Conformance and Interoperability Testing Challenges in Africa" (5 April 2017), the
SG13 Regional Workshop (2-3 April 2017) and the Regional Group of SG13 (
SG13RG-AFR, 4-5 April 2017)
20 Next Study Group 11 meetingThe next SG11 meeting is scheduled in Geneva, 8-17 November 2017.
The following meeting of SG11 is scheduled in Geneva, 30 April-11 May 2018 (planned).