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Mobile Fronthaul



The flexiHaulTM product line is a cost-effective, highly flexible, and scalable family of transport units that delivers a broad range of fronthaul and backhaul services on a single platform via CWDM/DWDM over dark fiber. These units are specifically designed to support cloud radio access networks (C-RAN) development for 4G and beyond. The flexihaul can serve as the optical transport system for a C-RAN structure comprised of BBU hotels, central offices and various types of remote cells, such as macros, indoor and outdoor small cells, RRHs. The flexiHaul can also be used in backhaul applications to provide the G-PON, GigE, STM1 and E1 over dark fiber.



Related Products

The current product line consists of the following compact models: HSN-8500, HSN-8300, HSN-8100 and the HSN-8110, an outdoor-type unit.


HSN-8500 and HSN-8300 units are typically deployed as aggregators in BBU hotels or central offices while HSN-8100 and HSN-8110 are deployed near RRHs or access points.


HSN-8300 has a dual purpose: it can be used as remote terminal (RT) for HSN-8500 aggregator or as an aggregator /central office terminal (COT) for HSN-8100 and HSN-8110 remote units.


► HSN 8500


 HSN 8300


 HSN 8100 


 HSN 8110




Related Materials



flexiHaul Product Overview
flexiHaul HSN-8500 data sheet
flexiHaul HSN-8300 data sheet
flexiHaul HSN-8110 data sheet
flexiHaul HSN-8100 data sheet

Whitepapers and Tech-Notes


HFR's Mobile Fronthaul Solutions for LTE-A Era
Considerations for Passive and Active WDM
Why should jitter be minimized in CPRI fronthaul?
Evolution of Mobile RAN Architecture in LTE-A Era
Calculation of maximum distance between RRH and BBU (Latency)
Why WDM is essential in fronthaul networks (Capacity)
Emergence of C-RAN and CPRI Overview




C-RAN classification (Coverage-based)
SK Telecom LTE Fronthaul and Backhaul Architecture
Required CPRI link capacity in function of radio technologies




"flexiHaulTM is the WDM system which allows delivery of multiple CPRI/OBSAI channels over a single strand of fiber. Furthermore, it’s scalable architecture that allows seamless migration toward convergence which supports not only CPRI Fronthaul but also GE and G-PON Backhaul." 

Dr. J.H. Lee, Executive Vice President of HFR






► SK Telecom


 SK Telecom LTE Fronthaul and Backhaul Architecture

Approximately 145,000 RRHs (80% of all LTE RRHs) are connected to C-RAN fronthaul since 2011, and more than 60% of the SK Telecom fronthaul is connected to flexiHaul.

- Number of systems: about 4,000

- Number of 10G sub-rate muxponder cards: about 15,000


Interoperability with RAN vendors

► Ericsson, Nokia, Samsung, Huawei, ZTE


The interoperability with leading RAN vendors has been proven by field and/or lab. tests in Korea, Japan, China, Taiwan, Russia, Indonesia, etc.

- Ericsson LTE system
- Nokia LTE and 3G system 
- Samsung LTE system
- Huawei LTE system

- ZTE LTE system


Compare Models

  HSN 8500 HSN 8300 HSN 8100 HSN 8110
 Dimension (WxDxH) 483x435x220, 5U   483x435x134, 3U   483x435x44.6, 1U   Outdoor Solution    
 # of Service Cards 22   9   2   Outdoor Solution    
 Maximum CPRI Ports 88   36   8   4    
 CPRI  Option 2-7   Option 2-7   Option 2-7   Option 2-7    
 OBSAI 3.072/6.144 Gbps   3.072/6.144 Gbps   3.072/6.144 Gbps   3.072/6.144 Gbps    
 Ethernet 4xGE   4xGE   4xGE   GE    
 GPON OLT 4 GPON ports   4 GPON ports   4 GPON ports  






Hana EZ Tower 5F, 10 Seongnam-daero43beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-870, Korea
E-MAIL : resonant@hfrnet.com

TEL : +82-31-712-7768

FAX : +82-31-712-7948




 Full Fronthaul Architecture



► Hybrid BH/FH Architecture


► Integrated BH/FH Architecture










Contact Information


Hana EZ Tower 5F, 10 Seongnam-daero43beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-870, Korea

TEL: +82-31-712-7768

FAX: +82-31-712-7948

Web: www.hfrnet.com





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