5G Implementation Guidelines July 2019 2 Overview Introduction Acknowledgements 5G is becoming a reality as early adopters Special thanks to the following GSMA have already commercialized data-oriented 5G Checklist for Non-Standalone 5G Deployment networks in 2018 and are planning to launch taskforce members for their contribution and consumer mobile 5G in 2019 and beyond. review of this document: Whilst early adopters do not necessarily AT&T Mobility require guidance, there are still majority of the EE Limited operator community that are yet to launch Ericsson commercial 5G services. This document Huawei Technologies Co. Ltd. intends to provide a checklist for operators that are planning to launch 5G networks in NSA Hutchison 3G UK Limited (non-standalone) Option 3 configuration. KDDI LG Electronics Inc. MediaTek Inc. Scope Nokia This document provides technological, NTT DOCOMO spectrum and regulatory considerations in the Softbank Corp. deployment. Syniverse Technologies, Inc. Telecom Italia SpA This version of the document currently Telefónica S.A. provides detailed guidelines for implementation Telia Finland Oyj of 5G using Option 3, reflecting the initial United States Cellular Corporation launch strategy being adopted by multiple operators. However, as described in “GSMA Utimaco TS GmbH Operator Requirements for 5G Core Verizon Wireless Connectivity Options” there is a need for the Vodafone Group industry ecosystem to support all of the 5G ZTE Corporation core connectivity options (namely Option 2, Option 4, Option 5 and Option 7) in addition to Abbreviations Option 3. As a result, this document will be updated during 2019 to provide guidelines for Term Description all 5G deployment options. 2D 2 Dimensions 3D 3 Dimensions Note: The topics listed in this document is not 3GPP 3rd Generation Partnership Project exhaustive and is open to suggestion/contribution by any company. 5GC 5G Core Please contact [email protected] AMBR Aggregate Maximum Bit Rate Access and Mobility Management AMF Function AN Access Network APN Access Point Name AR Augmented Reality ARD Access Restriction Data 3 Term Description Term Description AVP Attribute-Value pairs International Mobile Telecommunication IMT-2020 system with a target date set for 2020 The Body of European Regulators for BEREC Electronic Communications IP Internet Protocol BPSK Binary Phase Shift Keying IT Information Technology BW Bandwidth International Telecommunication Union ITU-R Radiocommunication Sector CA Carrier Aggregation LTE Long Term Evolution CC Component Carrier CDR Charging Data Record MAC Medium Access Control COTS Commercial Off The Shelf MBR Maximum Bit Rate MCG Master Cell Group CRS Cell-specific Reference Signal CU Centralized Unit ME Mobile Equipment CUPS Control and User Plane Separation MIMO Multiple-Input Multiple-Output MME Mobility Management Entity DC Dual Connectivity DCNR Dual Connectivity with NR mMTC Mobile Machine Type Communications DL Downlink MN Master Node MOCN Multi-Operator Core Network DNS Domain Name System DSL Digital Subscriber Line MORAN Multi-Operator Radio Access Network MU- DU Distributed Unit Multi-user MIMO MIMO Enhanced Common Public Radio eCPRI Interface NAS Non-Access-Stratum NFV Network Function Virtualization eLTE Enhanced LTE NGEN- eMBB Enhanced Mobile Broadband NG-RAN – E-UTRA Dual Connectivity DC eNB eNode B NR New Radio EN-DC E-UTRAN New Radio – Dual Connectivity NR New Radio EPC Evolved Packet Core NSA Non StandAlone EPS Evolved Packet System OCS Online Charging System enhanced Single Radio Voice Call eSRVCC PCRF Policy and Charging Rules Function Continuity PDCP Packet Data Convergence Protocol Evolved-Universal Terrestrial Radio E-UTRAN Access PDN Packet Data Network FQDN Fully Qualified Domain Name PGW PDN Gateway FTTX Fiber To The X POP Point of Presence FWA Fixed Wireless Access PRACH Packet Random Access Channel GBR Guaranteed Bit Rate PTP Point to Point gNB gNode B PUCCH Physical Uplink Control Channel GW Gateway QAM Quadrature Amplitude Modulation HARQ Hybrid Automatic Repeat Request QCI QoS Class Identifier HE Home Environment QoS Quality of Service HPLMN Home Public Land Mobile Network QPSK Quadrature Phase Shift Keying HSS Home Subscriber Server RAN Radio Access Network IMS IP Multimedia Subsystem RAT Radio Access Type 4 Term Description References RLC Radio Link Control Ref Title RoHC Robust Header Compression GSMA PRD IR.92, IMS Profile for Voice and [1] RRC Radio Resource Control SMS SA StandAlone “BEREC Report on infrastructure sharing”, [2] BEREC 2018. SAE System Architecture Evolution GSMA PRD IR.65, IMS Roaming and SCG Secondary Cell Group [3] Interworking Guidelines SC- Single Carrier – Orthogonal Frequency GSMA PRD NG.113, 5GS Roaming OFDM Division Multiplexing [4] Guidelines SDN Software Defined Networking Note: Document will be available in Q4/2019 SGW Serving Gateway GSMA PRD NG.114, IMS Profile for Voice, SLA Service Level Agreement [5] Video and SMS over 5G SMS Short Message Service Note: Document will be available in Q1/2020 3GPP TS 23.501, System Architecture for the SMSoIP SMS over IP [6] 5G System SN Secondary Node 3GPP TS 22.261, Service requirements for SN Serving Network [7] next generation new services and markets SRVCC Single Radio Voice Call Continuity 3GPP TS 33.401, 3GPP System Architecture [8] SUL Supplementary Uplink Evolution (SAE); Security architecture SU-MIMO Single-user MIMO 3GPP TS 33.501, Security architecture and [9] TCO Total Cost of Ownership procedures for 5G System GSMA PRD FS.19, Diameter interconnect TDD Time Division Duplexing [10] security TS Technical Specification [11] GSMA Mobile Policy Handbook UE User Equipment Migration from Physical to Virtual Network UL Uplink [12] Functions: Best Practices and Lessons UP User Plane Learned Ultra Reliable Low Latency uRLLC Communications VI Virtual Infrastructure VNF Virtual Network Function Vo5G Voice over 5G VoCS Voice over Circuit Switch VoIMS Voice over IMS VoLTE Voice over LTE VoNR Voice over NR VoWiFi Voice over WiFi VPLMN Visited Public Land Mobile Network VR Virtual Reality WRC World Radiocommunication Conference xDSL x Digital Subscriber Line 5 Contents Overview .................................................. 3 2.14 Outlook .................................................... 28 Introduction ........................................................3 Annex A Document Management ....... 30 Scope ..................................................................3 A.1 Document History ............................... 30 Acknowledgements ...........................................3 A.2 Other Information ................................ 30 Abbreviations .....................................................3 References .........................................................5 Contents .................................................. 6 1. Commercialisation of 5G .................... 8 1.1 Fixed Wireless Access ................................8 1.2 Enhanced Mobile Broadband .....................8 2. Prerequisite for initial 5G NSA Option 3 launch ................................................. 11 2.1 Introduction ............................................... 11 2.2 Spectrum ................................................... 12 2.2.1 Bands earmarked for 5G and their possible utilisation ......................................... 12 2.2.2 Amount of spectrum needed ............... 13 2.3 4G Radio network updates ...................... 13 2.3.1 Number of sites needed ...................... 13 2.3.2 LTE upgrade to support EN-DC (Option 3) ................................................................... 14 2.4 4G Core network updates ........................ 14 2.4.1 Option 3/3a/3x Networking Comparison ...................................................................... 14 2.4.2 Impact Analysis on 4G Core Network Elements ....................................................... 15 2.4.3 4G Core Network Upgrading Strategy . 15 2.5 5G deployment .......................................... 16 2.5.1 Massive MIMO Selection ..................... 17 2.5.2 Coverage Enhancement ...................... 18 2.5.3 Synchronisation Configuration ............. 20 2.5.4 NSA and SA Strategy .......................... 20 2.5.5 5G Network Deployment Strategy in initial stage .................................................... 21 2.6 Transmission / backhaul .......................... 22 2.7 Devices ...................................................... 22 2.8 Network Sharing ....................................... 23 2.8.1 Benefits of Sharing .............................. 24 2.8.2 Obligations and challenges ................. 24 2.9 Testing ....................................................... 25 2.10 Features ................................................... 25 2.11 Migration to virtualized network/Network Transformation [12] ........................................ 27 2.12 Roaming .................................................. 28 2.13 Services (IMS – Voice) ........................... 28 2.13.1 Roaming with VoIMS ......................... 28 6 1 Commercialisation of 5G 7 1. Commercialisation of 5G 1.1 Fixed Wireless Access FWA (Fixed wireless access) refers to a the other hand, can provide a cost wireless link that provides connectivity to effective and easy connectivity solution objects that are stationary or nomadic (i.e. to such demands. almost no movement when connectivity is Internet of Things: cheaper connectivity used). This concept has already been frequently solution enables cost effective