Solving the 5G fronthaul challenge with Ethernet and passive WDM
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The document discusses the challenges of 5G fronthaul solutions, highlighting the importance of ethernet and optical technologies for latency and capacity requirements in evolving radio access networks. ADVA's g.metro solution emphasizes practical approaches to network efficiency, monitoring, and automated provisioning. It concludes that ethernet simplifies network construction, setting standards for transport latency and supporting the future of disaggregated RAN architectures.
Solving the 5G fronthaul challenge with Ethernet and passive WDM
- 1. Solving the 5G fronthaul challenge with Ethernet and passive WDM Steve Penticost, VP, global business development, ADVA Market Watch Panel 5: Next-gen access networks
- 2. © 2021 ADVA. All rights reserved. 2 Fiber-connected radio sites are expected to increase significantly How important will optics be for 5G? Microwave Fiber Copper ? Antenna Baseband unit
- 3. © 2021 ADVA. All rights reserved. 3 What is the RAN evolution for 5G? Latency requirements are tough… Transport becomes trickier, but Ethernet helps EPC Backhaul Carrier Ethernet BBU RRH 4G/LTE RAN Fronthaul CPRI 5G RAN RU 5GC Backhaul Carrier Ethernet (NG/Xn, S1/X2) Midhaul Ethernet (F1) Fronthaul eCPRI/Eth (Fx) DU CU Disaggregation 40-200km <10ms 20-40km 1-2ms 0-10km 25-200µs
- 4. © 2021 ADVA. All rights reserved. 4 No silver bullet – but what are the optical layer options? Best latency Highest capacity per fiber and low latency TDM-PON Grey point- to-point links DWDM Best-effort traffic only Pragmatic approach needed …
- 5. © 2021 ADVA. All rights reserved. 5 ADVA’s G.metro solution covers the bases Remote monitoring Transparent communication channel, independent of host equipment ... Fiber assurance ALM monitoring for highest network availability and minimum MTTR Any host equipment ADVA or third-party equipment Automatic self-tuning SFP+ Zero-touch provisioning, minimum set-up time, human errors and spares Complete suite of filters Compact filters for efficient use of fiber resources and rack space Indoor and outdoor Filters and plugs for operation in controlled and hardened environments 10G & 25G Today …
- 6. © 2021 ADVA. All rights reserved. 6 Capability of single wavelength Trade-off and “area of interest” Terminal/plug … modulation formats and performance Capacity per λ (Gbit/s) Link budget (dB) Reach (km) 10 20 30 40 50 10 100 50 5 10 15 20 Legend NRZ PAM4/DMT Coherent C-band O-band
- 7. © 2021 ADVA. All rights reserved. 7 7 (Lite) coherent for metro edge and mobile x-haul Hub location CU/DU/BBU/router etc. Edge/remote sites Coherent plug options … • 100Gbit/s • 200Gbit/s • 400Gbit/s Simplified coherent required Relative short reach Latency constraint Cost & fiber shortage Density & power
- 8. © 2021 ADVA. All rights reserved. 8 So what does all this mean? Pragmatic approach to building these networks Ethernet makes our lives easy ☺ Standards to set the baseline and consider transport Latency becomes increasingly important Disaggregation in RAN is future proof Transport layer know- how is key to providing turn-key solution
- 9. Thank you IMPORTANT NOTICE The content of this presentation is strictly confidential. ADVA is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited. The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation. Copyright © for the entire content of this presentation: ADVA. info@adva.com