Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Distributed firewall wikipedia , lookup
Cracking of wireless networks wikipedia , lookup
Passive optical network wikipedia , lookup
Optical fiber wikipedia , lookup
Airborne Networking wikipedia , lookup
Network tap wikipedia , lookup
Policies promoting wireless broadband in the United States wikipedia , lookup
Piggybacking (Internet access) wikipedia , lookup
List of wireless community networks by region wikipedia , lookup
5g Heading towards 5G networks: market drivers and requirements on X-haul Antonella Sanguineti SPM Responsible for Optical and Fronthaul BROADBAND AND MEDIA EVERYWHERE 5g USE CASES SMART VEHICLES, TRANSPORT CRITICAL SERVICES AND INFRASTRUCTURE CONTROL CRITICAL CONTROL OF REMOTE DEVICES HUMAN MACHINE INTERACTION SENSOR NETWORKS Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 2 Radio network evolution Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 3 5g Network Architecture Management & Control Radio Access Applications Cloud Infrastructure Fronthaul Transport Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 4 Ericsson Cloud RAN Distributed RAN Centralized RAN Elastic RAN Virtualized RAN Improved interworking between sites and layers Colocation of resources and maximum performance in traffic hotspots Optimal coordination across the network for D-RAN and C-RAN Introducing split architecture for full flexibility on the road to 5G Coordination Maximized spectrum efficiency and end-user experience Fronthaul – a coordination enabler Main Unit CPRI Main Unit Fronthaul Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 5 RRU Fronthaul is connectivity between functional blocks of a cellular radio base station – ITU-T 802.1CM The requirement chain 5G use cases radio technical requirements › High User Density › High Capacity › Low Device Energy Consumption › Good Cell Edge Performance › Reduced Signaling › Low Latency › Access to New Spectrum › Faster Data Throughput › High Availability › Quality Uplink Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 6 Transport factors for radio requirements 5G New Security Interfaces Timing Latency Capacity Connections Fronthaul: Other aspects to consider Timing Security Connection New Interfaces Capacity Latency FH Evolution Cost Fiber role Scalability TCO Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 7 From 4G to 5G fronthaul PPU/RCU 5G network DU/BPU Cluster site eCPRI 4G network › One common Fronthaul infrastructure, able to transport 4G CPRI and 5G eCPRI new standard interfaces (ref.ITU-T G.801CM) Overall 5G solution LTE-Evolution NX/NR Backwards compatible Existing spectrum New spectrum GHz AB 2016 3 GHz 10 GHz Ericsson Internal | ©1Ericsson | 2016-09-17 | Page 830 GHz 100 GHz – CPRI: TDM based – TDM or DWDM network – eCPRI: packet based – bridged network › Matching delay and scalability requirements of both interfaces Fronthaul the fiber constraints The more wireless we become, the more fixed-line dependent we become. Basically all you’re doing is building this big massive fixed-line network with wireless antennas hanging on the end of it. Randall Stephenson, CEO, AT&T › 5G has much to do fiber installation and site acquisition Topology of existing fiber infrastructure may strongly influence Operators’ placement of radios. Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 9 The fiber constraints Rings Point to point Chains \ Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 10 The fiber constraints Rings Point to point Chains \ › A modular optical solution is key to fulfil fiber plant constraints in 4G networks › High densification in 5G will require even more building blocks to implement bridged fronthaul Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 11 Scalability & capacity CPRI rates › Scalability from the transport perspective is the ability of the network to support radio evolution without architectural changes, at the right cost › It strictly connected to: – the maximum transport resources exploitation (e.g. fiber) – Cost of the technology (higher rates interfaces) – Network infrastructure future proof-ness – Coexistence of old and new interfaces CPRIxx CPRI8 CPRI7 radios / C-RAN Hub 6 10G 25G 40G Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 12 eCPRI rates 12 24 48 Technology & cost 10G grey Cost guaranteed by production binning I-temp C-temp 10G SFP+’s I-Temp 10GBASE-LR “Lite” 25G WDM 10G WDM 1600ps/nm, 50GHz • Stringent OSNR specs 10G DWDM SFP+’s • I-Temp 100GHz • 400 ps/nm, 25dB Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 13 Time Future 25G Tunable SFP28 “Transport” DWDM transceivers • guaranteed by design • 25G NRZ InP MZ Modulator • >220ps/nm, 100 GHz locker-less • -20 dBm sensitivity @5E-5 (APD receiver, RS FEC). > 20 dB budget • C and L band variants • ~ 2x Tunable 10G cost (T)-SFP+ (T)-SFP28 The Role of fiber and DWDM Fiber infrastructure supports Broadband is a key element for cities societal, economical and environmental development › High rate traffic over a Reliable Transport Layer › Passive, distributed and open infrastructure DWDM technology › Exploits operators fiber investment › Coexistence of GPON, CPRI, Ethernet, TDM (CPRI is TDM) › Seamless evolution towards 5G X-haul DWDM is future proof Superior network performance as essential component for real-time context based decision process and action Society and individuals requirements of access and instant sharing of information, data and videos (4K, 3D) Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 14 › › › › › Mature technology - cost reduction curve Up to 96 channels – for best fiber usage Scalable from 1G to 100G and higher Integrated into ERS with pluggable modules Ensures security, integrity and low latency WDM transport › 2.5G DWDM – Higher cost per bit – 48 channels (up to 192 with 50GHz and LBand) › 10G DWDM – Proper cost per bit – 48 channels (up to 192 with 50GHz and LBand) – Best technology for higher rates › 25G DWDM – Proper cost per bit – Feasible with same form factor of SFP+ Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 15 › 2.5G CWDM – Lower cost per wavelength – 18 channels (doubling possible, with 2 temperature stabilized lasers in the same filter) › 10G CWDM – Proper cost per bit (no main differences with respect to DWDM) – 18 channels (doubling possible with 2 lasers in the same filter) › 25G CWDM – No plan One solution does not fit all the DWDM building block approach Timing Security Fiber fronthaul ensures lowest latency Connection Capacity Latency FH Evolution New › DWDM provides maximum fiber Interfaces exploitation – Lowest cost per bit Cost – scalability › Technologies available at volumes to fit Scalability both CPRI and Packet interface higher rates – C-temp, I-temp Fiber role λ1 λ2 λ3 λ4 λ5 λ6 DWDM TCO › DWDM building blocks, both active and passive to create many different network topologies › DWDM infrastructure as future proof investment for LTE, LTE-evolution and 5G fronthaul Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 16 Next time… Timing Security Connection New Interfaces Capacity Latency FH Evolution Cost Fiber role Scalability TCO TCO automation flexibilty Ericsson Internal | © Ericsson AB 2016 | 2016-09-17 | Page 17 5g Q&A Antonella Sanguineti SPM Responsible for Optical and Fronthaul