5G Mobile Network Architecture and Network Integration Álvaro Martín Heredia Universidad de Málaga

Table of Contents 5G Objective Requirements Architecture PDU Session Control/User Plane Separation Service-Based Architecture Stateless NFs Exposure Capability Network Slicing Non Standalone Deployment

5G for what? eMBB mMTC uRLLC Gigabytes in a second System Capacity 1000x capacity/km2 3D video, UHD screens Data Rate >10Gbps per connection Work and play in the cloud Smart Home/Building Augmented reality Latency <1ms Industry automation Connection Density 1M connections/km2 Voice Mission critical application Battery Life for IoT >10 years Smart City Self Driving Car Deep Coverage Ultra Reliability/ <164 dBm MCL mMTC uRLLC Source: ITU-R Rec. M.2083

5G Foundations Flexibility - Virtualization Densification Network Convergence

5G Architecture PDU Session NSSF NEF NRF PCF UDM AF AMF AUSF SMF UE Nnef Nnrf Npcf Nudm Naf PDU Session Namf Nausf Nsmf AMF AUSF SMF . N1 N2 N4 UE (R)AN N3 UPF N6 DN Source: 3GPP TS 23.501

PDU Session > UE gNB UPF PDU Session DRBs N3 Tunnel APPs QoS Flow 1 IP Flows QoS Flow 1 QoS Flow 2 QoS Flow 3 QoS Flow 4 Source: 3GPP TS 38.300

CUP Separation NSSF NEF NRF PCF UDM AF AMF AUSF SMF UE (R)AN UPF DN Nnef Nnrf Npcf Nudm Naf Namf Nausf Nsmf AMF AUSF SMF Control Plane User Plane N1 N2 N4 UE (R)AN N3 UPF N6 DN Source: 3GPP TS 23.501

Service-Based Architecture(SBA) NSSF NEF NRF PCF UDM AF Nnssf Nnef Nnrf Npcf Nudm Naf Namf Nausf Nsmf AMF AMF AUSF SMF SMF N1 N2 N4 UE (R)AN N3 UPF N6 DN Source: 3GPP TS 23.501

Service-Based Architecture(SBA) NFs offer services that other NFs consume. NRF acts like a DNS server, facilitating service discovery. Facilitates SDN and NFV concepts in 5G. Server-Based Interface: HTTP/2 Application Protocol JSON Serialization Protocol TCP Transport Protocol NRF Registration Discovery/Authorization Service Request/Authorization AMF SMF Source: 3GPP TS 29.500, TS 29.510

Stateless NFs NSSF NEF NRF PCF UDM AF AMF AUSF SMF UE (R)AN UPF DN Nnssf Nnef Nnrf Npcf Nudm Naf Namf Nausf Nsmf AMF AUSF SMF N1 N2 N4 UE (R)AN N3 UPF N6 DN Source: 3GPP TS 23.501

Stateless NFs UDM UDR UDSF PCF AMF AMF AMF NEF Nudm UDM Npcf Nudr UDR UDSF PCF AMF Nudsf AMF Namf AMF Nnef NEF Source: 3GPP Summit in CEATEC2018 - Makuhari, Japan, October 17, 2018

Exposure Capability NSSF NEF NRF PCF UDM AF AMF AUSF SMF UE (R)AN UPF Nnssf Nnef Nnrf Npcf Nudm Naf Namf Nausf Nsmf AMF AUSF SMF N1 N2 N4 UE (R)AN N3 UPF N6 DN Source: 3GPP TS 23.501

Exposure Capability AF - Application Function App influence on traffic routing Interacting with Policy framework for policy control Accessing NEF NEF - Network Exposure Function Exposure of capabilities and events Secure provision of information from external apps to 3GPP network. Translation of internal-external information Events related to users. Information of Provision capability Policy and charging capabilities CN internal capabilities for analytics. Source: 3GPP TS 23.501, TS 23.502

Exposure Capability NSSF NEF NRF PCF UDM AMF AUSF SMF AF UE (R)AN UPF Nnssf Nnef Nnrf Npcf Nudm Namf Nausf Nsmf Naf AMF AUSF SMF AF N1 N2 N4 UE (R)AN N3 UPF MEC Host Source: MEC Deployments in 4G and Evolution Towards 5G, ETSI White Paper No. 24 Feb 2018

Network Functions Virtualization (NFV) COTS HW AMF AMF AMF UDM UDM UDM SMF SMF SMF UPF UPF UPF

Network Slicing RAN CN eMBB Slice V2X Slice AMF SMF UDM RAN Slice eMBB UPF PCF AUSF V2X Slice AMF SMF UDM RAN Slice uRLLC MEC Host UPF UPF

Network Slice A logical network that provides specific network capabilities and network characteristics. Virtual network over a common shared physical infrastructure that can be created “on-demand” in order to meet specific needs of applications, devices, customers or operators. Self-contained Isolated Configurable and Programmable Multitenancy capability Supports one or multiple type of services Source: 3GPP TS 23.501

Network Slicing

Network Slicing Source: 3GPP TS 28.530

5G TIME LINE Source: 3GPP

Non-Standalone (NSA) Deployment 4G EPC Control Plane Data Plane 4G eNB 5G gNB

Álvaro Martín Heredia Universidad de Málaga Thank you! Álvaro Martín Heredia Universidad de Málaga