1. Self-Management for Unified Heterogeneous Radio Access Networks ISWCS 2015 Twelfth International Symposium on Wireless Communication Systems Brussels, Belgium August 25, 2015

2. SEMAFOUR View on Future Network Management Colin Willcock Nokia Networks

3.  Project Achievements  Future Research Areas  Future Network Management Challenges Presentation Overview 3 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

4. Project Achievements 4

5. Project Key Achievements 5 Developed, documented and disseminated the SEMAFOUR vision for next generation SON for future mobile communication networks Provided major input to the Signals Ahead issue ‘Everything under the SON’, published in April 2013. There are dedicated sections on the SEMAFOUR project’s requirements and future vision Developed, documented and disseminated the SEMAFOUR vision for next generation SON for future mobile communication networks Provided major input to the Signals Ahead issue ‘Everything under the SON’, published in April 2013. There are dedicated sections on the SEMAFOUR project’s requirements and future vision Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

6. Project Key Achievements 6 Selection and extensive description of relevant use cases to achieve project goals Validation of the problem domain and proposed use-cases Complete definition of the system requirements for the use cases and modelling assumptions and methodologies Selection and extensive description of relevant use cases to achieve project goals Validation of the problem domain and proposed use-cases Complete definition of the system requirements for the use cases and modelling assumptions and methodologies

7. Project Key Achievements 7 Developed, documented and put into use complex Hannover simulation model & data to enable realistic simulation results. Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

8. Project Key Achievements 8 Developed demonstrator. Which shows all project results in realistic environment Successfully shown at major events like ICT 2013, NOMS 2014, IWSON 2014, FIA 2014, EuCNC 2015... Developed demonstrator. Which shows all project results in realistic environment Successfully shown at major events like ICT 2013, NOMS 2014, IWSON 2014, FIA 2014, EuCNC 2015... Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

9. Project Key Achievements 9 Developed and validated New SON algorithms for: 1.WiFi / LTE traffic steering 2.High mobility users 3.AAS (sectorization) 4.Dynamic spectrum allocation Demonstrated 1.Significant network performance improvement: 2.Improvement of the spectral usage: 3.Improved manageability of radio recourses and hardware capabilities: 4.Cutting edge research: Developed and validated New SON algorithms for: 1.WiFi / LTE traffic steering 2.High mobility users 3.AAS (sectorization) 4.Dynamic spectrum allocation Demonstrated 1.Significant network performance improvement: 2.Improvement of the spectral usage: 3.Improved manageability of radio recourses and hardware capabilities: 4.Cutting edge research: Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

10. Project Key Achievements 10 Creation and implementation of an integrated SON management system which demonstrates: Improved network performance in line with the network operator goals Controllability of the performance trade-offs taking into account the operator priorities Reduced network management cost by enabling and simplifying the network supervision Improved network upgrade planning by defining large time scale network performance predictions First step towards cognitive network management in terms of adaptive SON function parameterization (re-) configuration Creation and implementation of an integrated SON management system which demonstrates: Improved network performance in line with the network operator goals Controllability of the performance trade-offs taking into account the operator priorities Reduced network management cost by enabling and simplifying the network supervision Improved network upgrade planning by defining large time scale network performance predictions First step towards cognitive network management in terms of adaptive SON function parameterization (re-) configuration Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

11. Project Key Achievements 11 Impact on standardisation: liaisons with relevant standardisation bodies and other fora, in particular 3GPP (RAN2, RAN3 and SA5), NGMN. Multiple contributions and direct Impact in several areas of 3GPP RAN standardisation Dissemination of project results through publications in conference proceedings and magazines, and presentations at conferences and workshops. Organisation of the successful workshop ‘Management Frameworks for Future Mobile Communication Networks Impact on standardisation: liaisons with relevant standardisation bodies and other fora, in particular 3GPP (RAN2, RAN3 and SA5), NGMN. Multiple contributions and direct Impact in several areas of 3GPP RAN standardisation Dissemination of project results through publications in conference proceedings and magazines, and presentations at conferences and workshops. Organisation of the successful workshop ‘Management Frameworks for Future Mobile Communication Networks Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

12. Future Research Areas Leading from SEMAFOUR Project 12

13. 1. Cognitive Policy-Based SON Management (Cognitive PBSM) 2. Device-to-Device (D2D) Communication 3. Nomadic Networks 4. License Assisted Access for LTE Future Research Areas Leading from SEMAFOUR Project 13 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

14. Cognitive PBSM – Closing the Loop(s) 14 SON MANAGEMENT NETWORK OPERATOR NETWORK SON 1 SON 2 SON N … SON Functions: Identify SON function actions and their impact on the network SON Management: Improve SON policies based on learned SON behaviour in the network High-Level Goals: (Re-)Map operator high-level goals to dedicated KPI values (combinations)  In a SON enabled network, cognitive capability can be introduced in several levels. At the level of each SON function by introducing in the SON and at the SON management level.  The task was to find starting point in the (top-down) PBSM approach that can closes the (feedback) loop.

15.  D2D is considered as one of the pillars of 5G systems, enabling many new applications and services Device-to-device (D2D) 15 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015  SON can play a key role in managing D2D, e.g. to – allocate resources, – manage interference – ensure cohabitation for mixed cellular and D2D traffic  Example of D2D SON functions – Mode selection between  cellular / direct D2D / relay mode  Vehicular to vehicular / infrastructure – Bandwidth allocation for inband – overlay D2D  SON function dynamically split the proportion d of the frequency bandwidth between cellular and D2D users

16.  Nomadic nodes (NNs) – Movable access nodes for dynamic and flexible network extensions – Uncertainty in their temporal and spatial availability  Focus of study: NN and user connected to it are moving apart  Handover (HO) needed  Scenario: NN on public bus to serve on-board passengers, user is getting off the bus  Conceptual SON algorithm developed – Exploiting information for optimising the HO decision – Location of bus / NN – Relative velocities user vs. surrounding base stations Nomadic networks 16 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

17.  Defining a conceptual SON solution for “good neighbour” LAA-LTE channel selection: a. Triggering mechanism, and b. Channel selection algorithm.  The proposed channel selection algorithm includes: a) Mandatory mechanism – imposed by regulations, channel scanning utilizing standardized interference estimation procedures on the given unlicensed channel, and b) Optional mechanism(s) – custom interference conditions metrics, in combination with a set of assigned/ calculated channel weights, which are used to determine the optimal channel selection.  The SON parameters can be pre-configured for a given deployment scenario and expected average traffic load or can be adjusted by the SON function depending on the dynamic traffic conditions. SON for License Assisted Access - LTE (LAA-LTE) Channel Selection 17 SEMAFOUR Channel selection based on maximum weight Channel selection trigger Mandatory mechanism: Channel scanning based on standardized radio measurements Optional mechanism: Channel weighting based on interference conditions (LAA-LTE/ Wi-Fi specific) All channels scanned? Yes No

18. Future Network Management Challenges 18

19. Key requirements for network infrastructure towards 2020 19 Support up to 1000 times more traffic Enable Gbps peak speeds Reduce latency to milliseconds Deliver safe superior customer experience Make networks self-aware, self-adaptable, and intelligent Improve energy efficiency Manage up to 10 times more users Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

20. 5G will be wonderful (what ever it shall be!) 20 Whatever 5G turns out to be we will need to manage it effectively and efficiently Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

21.  5G Mobile Radio Systems – New requirements  Cognitive Networks – The application of big data analytics and machine learning technologies  SDN/Cloudification – Need to manage new distributed / vitualised architecture  New Spectrum – Authorised Shared Access spectrum – Unlicensed spectrum Future Challenges 21 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015

22. Thank you for your attention www.fp7-semafour.eu 22 Workshop on Self-Management for Unified Heterogeneous Radio Access Networks, August 25, 2015