Carrier Ethernet LTE Mobile Backhaul End-user Access Aggregation Metro/Core Service Delivery Switches 3000 Family

Apartment/ DAS GE�10GE Large Business 10GE

Pico/Micro Cells mmW/μW

Entertainment Venue GE G.8032 10�100 GE eNodeB Indoor GE Service Aggregation Switches (packet and packet-optical) 10GE Macro Cell Mobile Telephone Not-spots Switching Office 5000 Family 6500 Family 8700 Family GE Indoor/ FTTx/DOCSIS Outdoor Dense Urban Areas N x GE/10GE

MPLS-TP

Gov./Education RRH WiFi/Femto Cells RRH CPRI

Residential Macro Cell C�RAN BBU Visit us at www.ciena.com or call 800-207-3714 Enterprise Macro Cell

Mobile Technology Generations and Adoption Rates Small Cell Options MEF-based Mobile Backhaul Architecture

450 RAN NC Home Small/business Indoor public Outdoor urban Rural public enterprise space public space space EVC3 400 Common cell name Femtocell Femtocell, picocell Picocell, microcell Picocell, microcell Picocell, microcell EVC4 Deployment Self Self/operator Operator Operator Operator EVC6 LTE 350 Primary location Indoor Indoor Indoor Outdoor Outdoor RAN BS1 EVC1 EVC2 Adv. ≤ ≤ ≤ Total Approximate power output 20mW 100mW to 250mW 2W 1W to 5W 1W to 5W & 300 Approximate number 1 to 8 8 to 32 16 to 64 16 or more 16 or more Above of concurrent users EVC5 Access Closed Closed/Hybrid Open Open Open 250 Source: Ovum, Small Cell Market Opportunity Part 2: Femto, Micro, and Picocells 30 Oct 2012 RAN BS2 200 2. EVC ID EVC End Points Ethernet Service RAN BS3 RAN BS4 150 EVC-1 BS 1, BS 2, RAN NC EVP-LAN Analog Packet Networking Synchronization Architecture Options EVC-2 BS 3, BS 4, RAN NC EVP-LAN MEF 22.1

Millions of Connections 100 EVC-3 BS 1, RAN NC EVP-Line Implementation Agreement relates services to variety Digital EVC-4 BS 2, RAN NC EVP-Line of possible infrastructure use cases (in this example, EVC-5 BS 3, RAN NC EVP-Line using EVP-LAN for X2 and EVP-Line for S1) 50 OC BC EVC-6 BS 3, RAN NC EVP-Line

0 BC GM 1990 1995 2000 2005 2010 2015 2020 2025 OC Term Definition Term Definition Year Historical Data Source: CTIA & ITU Source: Technology Futures, Inc. 3GPP 3rd Generation Partnership Project MBMS Multimedia Broadcast Multicast Service BBU Baseband Unit MIMO Multiple Input Multiple Output (antennas) TTSC TGM

EEC EEC BM-SC Broadcast Multicast Service Center MME CoMP Coordinated Multipoint mmW/μW millimeter Wave/micro Wave SLA Measurement, Visibility and Management TBC TGM TTSC TBC CDMA Code Division Multiple Access MNO Mobile Network Operator

Frequency and Time (LTE-TDD) Frequency EEC EEC CPRI Common Public Radio Interface MPLS-TP Multiprotocol Label Switching Transport Profile Cell Site Service Provider 1 Service Provider 2 MTSO EEC TBC CRAN (or C-RAN) Cloud Radio Access Network NodeB WCDMA Radio Base Station

TTSC EEC CSG Cell Site Gateway OFDM Orthogonal Frequency-Division Multiplexing

EEC DL Down Link P-GW Packet Data Network Gateway UNI ENNI UNI OC-3/T/1/E1 EEC EEC TDM DAS Distributed Antenna System PTP Precision Time Protocol eMBMs Evolved MBMS RAN Radio Access Network EEC RAN BS RAN Base Station (LTE-FDD) eNB Evolved UTRAN (base station) CE CE Frequency Only Frequency Primary Reference Clock/Primary EICIC Enhanced Inter-Cell Interference Coordination RAN CE RAN Customer Edge Customer MA Reference Source (e.g., GNSS) EPC Evolved Packet Core RAN NC RAN Network Controller Packet Network clock distribution options: Primary Reference Time Clock (e.g., GNSS) EVC Ethernet Virual Connection RNC Radio Network Controller Provider MA GM G.8265.1 Grand Master • Distribute frequency using 1588v2 per Telecom Profile (ITU-T G.8265.1) EVP Ethernet Virual Private RRH Remote Radio Head - Non-1588v2 L2 nodes introduce jitter and should not exceed OC G.8265.1 Ordinary Clock Slave FDD Frequency Division Duplexing S-GW Serving Gateway 10 hops (ITU-T G.8261) Operator MA Operator MA BC 1588v2 Boundary Clock GSK Global System for Mobile Communication SNR Signal to Noise Ratio • Distribute frequency using SyncE (G.8262) and time using 1588v2 TGM G.8275.1 Telecom Grand Master GNSS Global Navigation Satellite System SON Self Organizing Network per Telecom Profile (ITU-T G.8275.1) - EEC provides more accurate frequency recovery to enable more TTSC G.8275.1 Telecom Time Slave Clock GPS Global Positioning System TDD Time Division Duplexing • Hierarchical Maintenance Domains define OAM Flows and OAM responsibilities accurate time recovery TBC G.8275.1 Telecom Boundary Block HetNet Heterogeneous Networks UE - Maintenance Domain (MD) – A level of monitoring within the hierarchy • Handoff frequency via 1588v2, SyncE, BITS, GPS frequency (10MHz), EEC Ethernet Equipment Clock HSS Home Subscriber Server UL Up Link - Maintenance Association (MA) – Boundaries of an Administrator’s scope of monitoring part of the network BITS or TDM (E1/T1) line time reference at the application site 1588v2 PTP 10MHz ICIC Inter-cell interference coordination UMTS Universal Mobile Telecommunications System • Maintenance End Points (MEP) – End Points of the MA ( ) • Handoff phase/ToD via 1588v2 or GPS phase (1pps) at the application site TDM Line LTE Long Term Evolution UTRAN UMTS Terrestrial Radio Access Network • Maintenance Intermediate Points (MIP) – Intermediate Points within MA ( ) BITS (T1/E1/2MHz) 1pps/ToD SyncE LTE-A Long Term Evolution–Advanced WCDMA Wideband Code Division Multiple Access Source: MEF MBH Mobile Backhaul

Ciena may from time to time make changes to the products or specifications contained herein without notice. © 2017 Ciena Corporation. All rights reserved. 6.2017