Executive Summary

​​​​​Executive summary of the WP1/11, WP2/11 and WP3/11 meetings (Geneva, 26 June 2019)

Working Party 1/11 (Signalling requirements and protocols for emerging telecommunications networks), Working Party 2/11 (Control and management protocols for IMT-2020) and Working Party 3/11 (Conformance and interoperability testing, combating counterfeit ICT and mobile device theft) meetings were held in Geneva on 26 June 2019. The meetings were attended by 27 delegates from 5 countries. The meetings were preceded by SG11 Rapporteur group meetings of Questions 1, 2, 3, 4, 5, 6, 7, 8, 10, 13 and 14/11. Questions 9, 12 and 15/11 held e-meetings only. Along with face-to-face meetings, most sessions from various Questions were supported by remote participation capabilities.

WP1/11 consented 1 Recommendation:
- Draft new Recommendation ITU-T Q.3741 (Q.SD-WAN) "Signalling requirements for SD-WAN services" (SG11-TD47/WP1)
WP2/11 consented 1 Recommendation:
- Draft new Recommendation ITU-T Q.5021 (Q.CE-APIMP) “Protocol for managing capability exposure APIs in IMT-2020 network"
(SG11-TD64-R1/WP2)
WP3/11 consented 1 Recommendation:
- Draft new Recommendation ITU-T Q.4043 (Q.vs-iop-reqts) “Interoperability testing requirements of virtual switch" (SG11-TD32-R1/WP3)

WP1/11 agreed the Supplement below:

2.2     Guidelines
No Guidelines were approved at this meeting.
2.3     Handbooks
No Handbooks were approved at this meeting.
2.4     Technical Papers
No Technical Papers were approved at this meeting
2.5      Corrigenda
No Corrigenda were approved at this meeting.

WP1/11, WP2/11 and WP3/11 approved the following reports of the Rapporteur group meetings:​​

• The report of Q1/11 meeting is contained in SG11-TD30-R1/WP1
  
• The report of Q2/11 meeting is contained in SG11-TD38-R1/WP1
• The report of Q3/11 meeting is contained in SG11-TD34/WP1
• The report of Q4/11 meeting is contained in SG11-TD49/WP1
• The report of Q5/11 meeting is contained in SG11-TD43-R1/WP1
• The report of Q6/11 meeting is contained in SG11-TD67-R1/WP2
• The report of Q7/11 meeting is contained in SG11-TD63/WP2
• The report of Q8/11 meeting is contained in SG11-TD62-R1/WP2
• The report of Q10/11 meeting is contained in SG11-TD39/WP3
• The report of Q13/11 meeting is contained in SG11-TD36-R1/WP3
• The report of Q14/11 meeting is contained in SG11-TD33-R1/WP3

The reports of the WP2/11 and WP3/11 will be made available on R-series, as follows:

• Report of WP1/11 – R22
• Report of WP2/11 – R23
• Report of WP3/11 – R24

WP1/11
WP1/11 finalized text and finally consented one new draft ITU-T Recommendation ITU-T Q.3741 (ex. Q.SD-WAN) “Signalling Requirements for SD-WAN service". It specifies signalling requirements for SD-WAN service launched by service providers. The signalling is to support the automated provision and management of the enterprise SD-WAN service.
Note: SD-WAN is an ecosystem of hardware, software, and services that enable service providers to launch Software-Defined WAN service for enterprises. It provides high quality WAN performance, reliability, and security in various ways.
WP1/11 agreed one new Supplement 70 to ITU-T Q-series Recommendations (ex. Q.suppl.Multi_Device_ETS) “Signalling requirements for IMS and GSM/UMTS network supporting multi-device emergency telecommunications service".
WP1/11 agreed to initiate a new work item of a technical report for improvement of SS7 security based on the draft technical report presented at the Q2/11 meeting. The goals for this work item are to promote the standardization on security mechanisms for existing (e.g. Legacy, 2G) and future networks, to research on the measures which could reduce the implementation cost of SS7 security in 2G networks, to provide concrete material for education to telecom and financial services regulators on SS7 vulnerabilities and mitigation measures for DFS, and to mitigate the use of the SS7 vulnerabilities for financial fraud.
Following this outcome, it was proposed to organize a brainstorming session on SS7 security (Workshop) during the next SG11 meeting (22 October 2019, Sessions 3&4). The announcement will follow and the details of the event will be circulated through the mailing lists of SG11 accordingly.
The WP1/11 agreed with the updated text of the ongoing work items which were considered during Rapporteur group meetings (Geneva, 17-26 June 2019), as follows:

• Q.DEN_IMS: Signalling architecture of distributed ENUM networking for IMS;
• Q.NGNe-O-SA: Signalling architecture of orchestration in NGNe;
• Q.SR-Trust: Signalling requirements and architecture for interconnection between trustable network entities;
  
• Q.VoLTE-SAO-req: Requirements for signalling network analyses and optimization in VoLTE;
  
• Q.Pro-DES: Protocol at interface between two distributed ENUM servers for IMS;
• Q.suppl. ETS_Multi_Access: Signalling requirements for IMS emergency telecommunications service in support of multiple accesses;
• Q.SFD: Signalling requirements for Service Function's discovery;
• Q.VNFT-req: Signaling requirements for VNF lifecycle management under the testing environment;
• Q.telemetry-VBNS: Signalling requirements for telemetry of virtual broadband network services;
• Q.BNG-CFS: Signalling requirements for control and forwarding plane separation in vBNG;
• Q.BNG-PAC: Procedures for vBNG acceleration with programmable acceleration card;
• Q.BNG-P4switch: Procedures for Programming Protocol-Independent Packet Processors(p4) Switch-based vBNG;

WP1/11 decided to start the new work items, as follows:

• Q.LiteIMS-SA “Signalling architecture of Lite IMS for IMT-2020 advanced network";
• TR-SS7-DFS “SS7 vulnerabilities and mitigation measures for digital financial services transactions".

The Work programme of WP1/11 was updated accordingly.
Two LSs were agreed. They will be sent to ITU-T SGs and external organizations to inform them on achieved progress, as follows:

• LS/o to GSMA, 3GPP, ITU FIGI SIT WG on SG11activities related to improvement of the SS7 security including for digital financial services;
• LS/o on recent SDN-related developments in Q4/11 of SG11: consented new Recommendation ITU-T Q.3741;
  

WP1/11 approved the reports of the interim Rapporteur meetings of Q1, 2, 3, 4, 5/11 accordingly.
During the WP1/11 meeting, it was highlighted that most of the Questions started the reconsideration of the ToR for the next Study Period. Therefore, all SG11 members were encouraged to provide relevant proposals to the next SG11 meeting (Geneva,16-25 October 2019).

WP2/11
WP2/11 finalized text and finally consented one new draft ITU-T Recommendation ITU-T Q.5021 “Protocol for managing capability exposure APIs in IMT-2020 network". It includes signalling architecture, API management functions, signalling flows and their message format, and definition for management APIs. It also describes gap analysis and use cases for API management. This protocol can be used by network operators and third parties to manage capability exposure APIs.
The WP2/11 agreed with the updated text of the ongoing work items which were considered during Rapporteur group meetings (Geneva, 17-26 June 2019), as follows:

• Q.IEC-PRO: Protocols for microservices based intelligent edge computing;
  
• Q.MEA-SRA: Signalling requirement and architecture for media service entity attachment;
  
• ITU-T X.mp2p-ocmp: Managed P2P communications: Overlay content management protocol;
• X.mp2p-srds: Managed P2P communications: Signalling requirements for data streaming;
• X.mp2p-ldmp: Managed P2P communications: Management protocol for live data sources.

Following this result, as a continuation of these activities, WP2/11 decided to start new work items, as follows:

• ITU-T Q.INS-PM: Protocol for managing intelligent network slicing with AI-assisted analysis in IMT-2020 network;
• ITU-T X.HP2P-Arch: Hybrid P2P communications: Functional architecture.

The Work programme of the WP2/11 was updated accordingly.
One LS was agreed as a reply on LS which came from ETSI, as follows:

• LS/o/r on ITU-T Q.5020 completion (reply to ETSI NFV ISG).

WP2/11 appointed Ms Tangqing LIU (China Mobile, China) as a new Associate Rapporteur for Q6/11.
WP2/11 approved the reports of the interim Rapporteur meetings of Q6, 7, 8/11 accordingly.
During the WP2/11 meeting, it was highlighted that most of the Questions started the reconsideration of the ToR for the next Study Period. Therefore, all SG11 members were encouraged to provide relevant proposals to the next SG11 meeting (Geneva, 16-25 October 2019).

WP3/11
WP3/11 finalized text and finally consented one new draft ITU-T Recommendation ITU-T Q.4043 “Interoperability testing requirements of virtual switch" which introduces the overview of vswitch and interoperability testing of vswitch, which includes but is not limited to the definition, characteristics, general capabilities of vswitch as well as the overview of interoperability testing of vswitch.
The WP3/11 agreed with the updated text of the ongoing work items which were considered during Rapporteur group meetings of Q10, 13 and 14/11 (Geneva, 17-26 June 2019), as follows:

The Chairman of WP3/11 introduced a contribution to propose a test methodology for IP reachability (SG11-TD41/WP3). This contribution was addressed to Q9/11, Q10/11 and Q12/11. During interim Rapporteur Q12/11 e-meeting, which takes place in parallel with SG11 RGM, Q12/11 agreed to consider this proposal for the future revision of one of their on-going work items.
Due to other commitments, the Rapporteur of Q14/11 Mr Nan CHEN (China Telecom, China) would step down. Mr Chen was thanked for his work with ITU-T SG11. Mr Xiaowu He (China Telecom, China) was appointed by WP3/11 as a new Rapporteur of Q14/11.
WP3/11 approved the reports of the interim Rapporteur meetings of Q10, 13, 14/11 accordingly. It was noted that the reports of the Q9, Q12 and Q15/11 e-meetings will be considered at the SG11 meeting (Geneva, 16-25 October 2019).
During the WP3/11 meeting, it was highlighted that most of the Questions started the reconsideration of theToR for the next Study Period. Therefore, all SG11 members were encouraged to provide relevant proposals to the next SG11 meeting (Geneva, 16-25 October 2019).​

The following table shows the list of outgoing liaison statements.

The following table shows the new approved work items.

Two Interim Rapporteurs' groups meetings will be held before the next meeting of SG11, Geneva, 16-25 October 2019.

The next SG11 meeting is scheduled to take place in Geneva, 16-25 October 2019.
The objectives for the meeting are highlighted below:

The list of Rapporteurs was updated:

No changes were made to the list of liaison officers.
The list of Rapporteurs and Associate Rapporteurs can be found at: https://www.itu.int/net4/ITU-T/lists/loqr.aspx?Group=11&Period=16.
The list of liaison officers can be found at: https://www.itu.int/net4/ITU-T/lists/representatives.aspx?Group=11&Period=16.