5G NORMA A NOvel Radio Multiservice adaptive network Architecture for the 5G era based on Network Slicing NGMN Forum - Taipei 17th March 2016

Transcription

1 5G NORMA A NOvel Radio Multiservice adaptive network Architecture for the 5G era based on Network Slicing Cinzia Sartori NGMN Forum, Taipei /Taiwan 17 March 2016

2 Introduction Goal & Motivation Enabling new 5G business through a network architecture that efficiently supports services with very different or even contradicting requirements one fits all not efficient Approach Flexibility through 3 key Innovations Adaptive (de)composition and allocation of NFs, Joint optimization of RAN and CN, SWdefined Mobile Control Apply ETSI/ONF NVF to Mobile RAN & core Define control and data layer as set of functions Implement network slicing

3 The 5G NORMA consortium: Going to enable 5G business (Project Coordinator) (Technical Manager) 5G NORMA in a nutshell EU funded R&D project within 5GPPP Initiative, aiming on building consensus on E2E mobile network architecture and rapid implementation Duration July 1 st, 2015 Dec 31 st, 2017 Connect to 5G NORMA Webpage: Twitter: 5G NORMA 5GPPP: Contact 5G NORMA 5G-NORMA-Contact@5g-ppp.eu

4 Multi-service and multi-tenancy Dedicated networks contained in slices can meet the need of different services and tenants: Tenant A Tenant B Tenant C Controller Mobile Network Multi-tenancy to support on-demand allocation of RAN and CN resources in a fully multi-tenant environment Service quality and performance Edge Cloud Network Cloud Service-specific functionality 5G NORMA interface Adaptation to available infrastructure Multi-service- and context-aware adaptation of network functions to support a variety of services and corresponding QoE/QoS requirements Vehicular Tactile 5G NORMA interface RAN c-plane CN c-plane RAN u-plane CN u-plane Internet access

5 Key Ingredients for 5G Service layer Developer Machine learning Controller for Infrastructure SDN controller Orchestrator NFV controller Reprogrammable Infrastructure layer Network On Chip Bare metal Metro network Local Area Network Edge/central cloud 3 layers are needed

6 Data Layer functions Control Layer Functions Management & Orchestration layer Service layer How 5G Architecture should look like? BSS & Policies decision Applications & Services e2e perspective of a network service PNF OSS EM NFV-MANO* Manager NFV Orchestrator VIM Dedicated control layer functions NBI SDM Controller SBI Service Orchestrator Template Network Slice Blueprint SLA template etc. Network graph Service type, KPIs, etc Service orchestrator: owned and operated by the tenant or the service provider SDM Controller is a key function in 5G NORMA. It controls the performances of PNFs and s through its SBI. It exposes a NBI for inserting/ reconfigure functions and resources assigned to the network slice. Time scale can be in the order of tens of milliseconds. In case that QoE/QoS targets cannot be met, the SDM-C may request re-orchestration SDN-C and NF are owned and operated by service provider ETSI- NFV MANO seems sufficient in this simple case PNF Dedicated data layer functions What about Network Slicing?

7 Network Slicing: The key enabler for new business with 5G Definiton of Slicing from NGMN - NGMN, White Paper 5G NORMA aims to develop a novel mobile network architecture that provides the necessary adaptability to support native multi-service and multitenant in a resource efficient way able to handle fluctuations in traffic demand resulting from heterogeneous and dynamically changing service portfolios and to changing local context Network Slicing satisfies service-specific demands by mapping different services to separate slices utilizes resources efficiently by mapping tenants to separate slices and sharing resource dynamically between slices.

8 Data Layer functions Control Layer Functions Management & Orchestration layer Service layer Network Slicing based architecture Applications & Services BSS & Policies decision Service Orchestrator Template Network Slice Blueprint SLA template etc. Network graph Service type, KPIs, etc Service orchestrator: owned and operated by the tenant or the service provider OSS EM EM NFV-MANO* Manager Slice (NFV) Orchestrator VIM Slice orchestrator (NFV-O): owned and operated by the service provider that operates the slice for the tenant (tenant and service provider may be the same) There is one instance per slice PNF PNF Dedicated control layer functions Dedicated control layer functions NBI SDM Controller SBI Dedicated data layer functions Dedicated data layer functions The Manager is owned and operated by the service provider. There are multiple -M instances per slice (tipically per vendor) The Virtual Infrastructure Manager (VIM) is owned and operated by the infrastructure provider. one VIM per cloud (e.g. one for the edge and one for the central cloud)

9 Network Slicing requirements Network Slicing from NGMN - NGMN, White Paper The infra-structure resources should be shared across many network slices Some functions may be common to more than one network slice: RAN, HSS, mobility management... Network slices isolation

10 Data layer Control layer Management & Orchestration layer Service layer 5G NORMA Architecture Applications & Services BSS & Policies decision 5G-NORMA-MANO Orchestrator Manager Service Orchestrator Template Network Slice Blueprint SLA template Network graph Service type, KPIs, etc OSS NFV-MANO* NFV Orchestrator etc. Service orchestrator: instantiate an e2e slice instance EM EM Manager VIM Orchestrator Manager: for handling the infrastructure allocation across network slices. Kind of dispatcher PNF Common control layer functions NBI SDM-X SBI NBI SDM-C SBI Dedicated control layer functions NFV Orchestrator (NFV-O): There is one instance per the dedicated and one per the common s D PNF Common data layer functions Dedicated data layer functions

11 Deployment View Functional View 5G NORMA Architecture Innovations and Views Covering all layers: Control and Data Layer, Management & Orchestration, and Service Topological View The 5 Innovations of 5G NORMA 1. Adaptive function (de)composition and flexible placement 2. Joint optimization of access/core functions 3. Software defined mobile network control and orchestration (SDM C+O) 4. Multi-service and context-aware adaptation of network functions 5. Mobile network multi-tenancy Different architectural views for clarity Function placement SDM C+O Joint access/core optimization Multiservice/ multitenancy each highlighting specific aspects of 5G NORMA architecture and innovations Resource View

12 Netwwork Slice 2 Network Slice Slice 1 1 Network Slice 2 Network Slice 3 Deployment view MANO-F 2 MANO-F 4 MANO-F 4 MANO-F 4 VIM VIM MANO-F 5 NF 2 VIM VIM MANO-F 5 5G NORMA SDM Controller NF 1 MANO-F 3 MANO-F 1 NF Libraries VIM VIM MANO-F5 Tenant 1 Tenant 2 Illustration of Function placement and SDM C+O Mapping of functions to mobile network elements Decomposition of functions and their flexible allocation Network slice specific set of functions NF 3 NF 4 NF 5 Physical NF Edge Cloud (BS) Edge Cloud (Net) Network cloud

13 Physical Resources PF Virtualized Resources MANO-F MANO-F MANO-F MANO-F Library of Network Functions VIM Agent VIM Agent VIM Agent MANO-F Control Data Mgmt & Orch. Compute Storage Networking Software Resources Compute Storage Networking Virtualization layer (Hypervisor) Compute Storage Networking Resource View Library of Network Services Service Service Service Compute Storage Networking Virtualization layer (Hypervisor) Compute Storage Networking Software libraries functions services Hardware resources computing, storage, networking virtualized and physical NF Edge and network clouds operate according to ETSI NFV principles Physical network functions SW and HW cannot be decoupled SW highly embedded in the HW Physical NF Edge Cloud Node Network Cloud Node Hardware Resources

14 Topological view Concrete illustration of network deployment and function placement Shows mapping of functions to geographical locations May be used to display per instance/per location properties functions allocated space demand link capacity and latency Edge-Cloud MANO-F Bare-metal Bare-metal SDN- enabled NW SDN- enabled NW NF Manager MANO-F Controller SDM Controller Edge-Cloud VIM Agent VIM Agent MANO-F Orchestrator MANO-F NF Manager MANO-F SDM Controllers Central-Cloud VIM Agent VIM Agent MANO-F

15 Project Outcomes

16 Expected 5G NORMA Impact Manufacturers: novel products Enhanced and flexible 5G base stations: light, flexible and efficient Software-based centralized controllers: based on software and hence easy to modify and to adapt to different scenarios and services End-users and society Support for more and better services Operators: novel and flexible services Flexibility to adapt network operation as desired Reduction of the cost of operating the network Support for new and diverse services, thereby increasing revenue Vertical markets Network able to adapt to their needs in terms of latency, reliability, security, QoS, etc. Standardization Novel architecture contributions: 3GPP Interfaces with the software-design controller: ONF Network-related protocols: IETF Prototypes Multi-Service and Multi-Tenant support SW Defined Mobile Network Control

17 Conclusions Inspired by concepts from the NGMN Whitepaper, 5G NORMA will develop an innovative E2E network concept allowing to support multiple services and tenants according to their specific needs, with great flexibility and adaptability to meet the demands of the 5G future based on network sharing.

18 Connect to 5G NORMA 5G NORMA facebook.com/5gnorma Contact 5G NORMA

19 backup

20 Resource View cont d Library of functions function itself (code) and its characterization to allow orchestration specifies resource requirements, supported interfaces and reference points, orchestration and configuration parameters Library of services service blueprint service description, i.e. QoS parameters ordered graph of functions ( forwarding graph ) that implements service may reference basic graphs (services) as subgraphs Hardware resources compute (general purpose and specialized hardware) incl. memory, storage, network virtualized as well as non-virtualized ( bare metal /physical network functions)

21 3 Innovations enabling flexibility Edge Cloud Controller Software Defined Mobile network Control (SDMC) applies SDN principles to mobile network functions Network Cloud Adaptive (de)composition and allocation of NFs Joint optimization of RAN and CN SW-defined Mobile Control 5G NORMA interface create the flexibility to RAN c-plane RAN u-plane 5G NORMA interface Joint optimization of mobile access and core network functions when located together in the network or edge cloud Adaptive (de)composition and allocation of mobile network functions (c-plane and u-plane) between network and edge cloud that depends on the service and deployment CN c-plane CN u-plane adapt dynamically to daily fluctuations in traffic demand adapt to rapid load variations in small cells introduce new services and business models quickly NGMN Forum, 2015/10/13-14