Views: 699 Author: Addams Publish Time: 2026-03-19 Origin: Site
With the gradual implementation of 5G network construction, the development of 6G is also on the agenda. In this context, the fronthaul network, as a crucial bridge connecting the central unit/DU and the remote radio unit (AAU/RRU), is a key focus for both 5G network implementation and 6G network development. However, according to 3GPP standards, 5G fronthaul needs to support the eCPRI protocol, imposing stringent requirements on bandwidth, latency, and synchronization accuracy. The outdated 4G network cannot handle the high traffic volume brought by 5G, and the cabling planning of the 4G network cannot meet the needs of the 5G fronthaul network.
In this situation, as a professional solution provider, YXFiber offers a 1G/10G/25G passive wavelength division multiplexing (WDM) full-scenario coverage solution specifically for 5G fronthaul networks. This helps operators accelerate the construction of 5G fronthaul networks, supporting large-scale 5G network deployment in a "low-cost, high-efficiency, and easy-to-maintain" manner.
For the past 4G networks, because there were no significant requirements for latency and instantaneous high traffic volume, the architecture and deployment of the fronthaul network were relatively simple. However, for 5G networks, the basic speed is several times that of 4G networks, and there are requirements for transmission latency, which needs to be reduced as much as possible. This poses the following challenges to network construction:
The coverage radius of 4G base stations is about 1 to 3 kilometers, while the coverage radius of 5G base stations (especially Sub-6GHz) is smaller, usually 100 to 300 meters. 1. Higher 5G frequencies lead to faster signal attenuation, resulting in shorter transmission distances for 5G base stations compared to 4G. This necessitates a denser base station deployment to achieve the same coverage. Furthermore, 5G equipment is more expensive than 4G equipment, and its power consumption is 2-3 times higher. Therefore, the overall construction and subsequent operation and maintenance costs are significantly higher than 4G.
The transmission distance of 5G base stations is much shorter than that of 4G base stations. Each base station requires an independent fiber optic cable for connection. This leads to a rapid depletion of fiber optic resources in the metropolitan area and access layer. Additionally, in areas sharing base stations with 4G networks, efforts must be made to avoid impacting 4G network stability and prevent prolonged, widespread network outages. All of these factors contribute to fiber optic resource scarcity, and the cost of re-laying fiber optic cables is very high.
Mobile networks are crucial to people's livelihoods, so 4G networks will not be interrupted during 5G construction. The existing network will simultaneously meet the demands of 4G 1G/10G and 5G eCPRI 25G. Therefore, how to smoothly evolve on the same network platform and maintain the stability of the existing network during orderly upgrades is an urgent problem to be solved.
To address the above challenges, YXFiber has launched a passive wavelength division multiplexing (WDM) solution. The core of this solution is to utilize WDM technology to reduce the use of fiber optic resources while allowing multiple different rates to coexist in the same network architecture, achieving multi-rate coexistence without interference between services and accelerating the pace of 5G base station construction.
YXFiber's 5G fronthaul solution utilizes CWDM or DWDM technologies to multiplex multiple optical signals of different wavelengths onto a single optical fiber for transmission, reducing the demand for fiber resources and significantly saving fiber resources. When the number of services is small, CWDM technology is used, supporting up to 18 services. When the number of services is large, DWDM technology is used, supporting 40 services (100GHz channel spacing) or 96 services (50GHz channel spacing), allowing for more flexible selection based on specific needs in actual deployment.
YXFiber's technical team deeply understands the need for stability of existing 4G networks during the construction of 5G fronthaul networks. Therefore, YXFiber's 5G fronthaul network solution is compatible with existing 4G services and low-speed leased lines. While ensuring the stability of the existing 4G network, it can simultaneously run 5G network traffic without conflict between various traffic rates, achieving a smooth network upgrade and avoiding resource waste during the upgrade process.
Product Model | Rate | Wavelength | Transmission distance | Packaging | Typical application scenarios |
YXF-1G-SFP | 1.25G | 1310/1550nm | 20km/40km | SFP | Government and enterprise dedicated lines, backhaul of existing business |
YXF-10G-CWDM | 10G | 1271-1371nm | 10km/20km | SFP+ | 5G fronthaul mainstream channels |
YXF-25G-CWDM | 25G | 1271-1371nm | 10km | SFP28 | 5G high-capacity urban coverage |
5G applications are closely aligned with the daily needs of the general public, resulting in a diverse range of usage scenarios. From bustling cities to remote rural areas, from office buildings to industrial parks, each scenario has its own emphasis on 5G networks. Therefore, the 5G fronthaul network needs strong adaptability to meet the diverse usage requirements of various scenarios. Based on this need, YXFiber's 5G fronthaul network solution possesses strong compatibility and adaptability to different usage scenarios. It supports multiple wavelengths according to ITU standards and is compatible with various fronthaul protocols such as CPRI and eCPRI. It can flexibly match the service carrying requirements of 3-6 AAUs through 1:6 and 1:12 multiplexers/demultiplexers, meeting the networking needs of urban areas, suburbs, and rural areas.
Dense urban network: Utilizes a 25G DWDM solution to meet high-capacity, high-density coverage requirements.
General suburban coverage: Employs a 10G CWDM solution, balancing bandwidth and cost.
Wide rural coverage: Employs a 10G/25G single-wavelength solution to reduce reliance on fiber optic cables and meet high-speed internet access requirements.
Application scenarios | Challenge | YXFiber Solution Advantages |
Dense urban areas | Pipeline resources are scarce, and optical fiber is extremely limited. | High integration: Utilize existing limited fiber optic resources to quickly activate services at multiple stations and avoid redundant construction. |
Suburbs/Rural Areas | Wide coverage area, difficult power supply, high maintenance costs | Passive and maintenance-free: No power supply required, lightning protection, resistant to high and low temperatures, significantly reducing the difficulty of maintenance at remote sites. |
Indoor distribution | Limited space and complex wiring | Miniaturized design: The device is small in size and easy to install in low-voltage wells or ceilings, with neat and beautiful wiring. |
High-speed rail/subway | High movement speed, frequent switching, harsh environment | High reliability: Industrial-grade component standards, vibration resistant, ensuring signal continuity in high-speed mobile scenarios. |
Among numerous fronthaul solution providers, YXFiber stands out with the following core advantages:
* Excellent Cost Control: Through comprehensive self-developed and manufactured products, YXFiber can reduce production costs by 40% without compromising performance, providing highly competitive, cost-effective products.
* Strong Carrier-Grade Reliability: YXFiber possesses a complete set of laboratory-grade testing facilities, providing carrier-grade aging tests for all products before they leave the factory. This ensures that products can meet various harsh operating environments, including indoor, outdoor, and factory environments, reducing maintenance failure rates and subsequent maintenance costs.
* Plug and Play, Easy Maintenance: YXFiber's 5G fronthaul network solutions require no complex software configuration; they are plug-and-play, reducing base station activation time from days to hours, avoiding excessive network outages.
* Strong Compatibility and Standardization: YXFiber's 5G fronthaul solutions comply with O-RAN and industry standard protocols, ensuring perfect compatibility with AAU/DU from mainstream equipment manufacturers (such as Huawei, ZTE, Ericsson, Nokia, etc.).
Future-Oriented Technological Evolution: From 5G to 5G-A/6G
In the future, with the large-scale commercialization of 5G-A technology and the pre-development and construction of 6G networks, fronthaul networks are facing the need to upgrade from 10G/25G speeds to 50G/100G speeds. According to authoritative academic reports, ultra-dense 5G/6G deployments require advanced solutions. In full 5G cells, transmission rates of 25Gbps and future 6G millimeter-wave clusters will exceed 100Gbps, requiring latency below 100 microseconds. This presents new challenges for next-generation fronthaul network solutions.
YXFiber is actively developing 50G/100G fronthaul products to prepare for next-generation network solutions. Furthermore, with the deepening of 5G network construction, stable and efficient fronthaul infrastructure becomes increasingly indispensable. As a professional solution provider, YXFiber is committed to providing users with low-cost, high-efficiency, and easy-to-maintain solutions. On the road to 5G-A and 6G, YXFiber will work with operators and industry partners to continuously innovate and strive for excellence, jointly embracing the opportunities and challenges of the new era of intelligent connectivity.
