Solution Benefits
5G radio access networks (RAN) introduce new requirements for the mobile backhaul (MBH) network infrastructure like number of nodes in the network, performance, and feature richness. This leads to growing network complexity. Juniper provides an end-to-end solution for the 5G xHaul network infrastructure, designed to support 4G MBH and 5G network infrastructure over the same physical network. This approach allows operators to smoothly transition from 4G to 5G without disrupting their existing services. The necessary changes can be gradually introduced to accommodate the evolving requirements for increased bandwidth, lower latency, enhanced synchronization, network slicing, and higher scale.
The 5G solution architecture requires robust QoS performance to deliver differentiated services and preserve low latency for critical traffic types. The QoS network architecture enables the following key benefits:
- Tailoring traffic priorities based on the application requirements, such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and massive machine-type communications (mMTC)
- Ensuring network operators can design appropriate bandwidth, latency, and reliability parameters across different traffic classes
- Optimizing network resources to ensure efficient bandwidth allocation and traffic prioritization based on application requirements
- Enhancing user experience with consistent and reliable quality service across diverse applications like streaming, gaming, and remote work
- Implementing LLQ to reduce transmission delay.
- Providing faster response time for crucial real-time applications by assigning preferential treatment over low-priority traffic
- Using highly reliable networks to minimize the risk of data loss and transmission errors, ensuring stable and predictable communication for critical services
- Implementing traffic prioritization at multiple levels ensures urgent services, such as emergency communications and public safety applications receive immediate attention and appropriate resources
These benefits collectively enable 5G networks to meet the diverse demands of modern applications and services, ensuring resilient, efficient, and flexible network performance.
This JVD examines CoS operations and performance requirements needed to ensure the integrity of critical 5G Fronthaul traffic flows between O-RU to O-DU emulated devices (see Figure 1), as facilitated by ACX7024 (CSR), ACX7100-32C (HSR) and ACX7509 (HSR). Additional validation includes MX304 as the Services Edge with PTX10001-36MR as Core for supporting end-to-end MBH traffic flows.
To facilitate the JVD objectives, a comprehensive CoS network model is created to support end-to-end 5G xHaul multiservice traffic types. The CoS model aligns with O-RAN multiple Priority Queue structure, establishing three main components: Low Latency Queues, Shaped Priority Queues, and Weighted Fair Queues. This model is adjustable beyond the featured use cases to meet additional customer requirements.
Juniper’s ACX7000 series platforms are specifically designed for use in the 5G Fronthaul segment. They provide necessary connectivity and routing capabilities at the cell sites and hub sites to enable seamless communication between the RAN and core network. The ACX Series routers offer advanced features tailored for MBH and xHaul applications, designed to handle the distinct challenges of high-volume traffic, low latency, and strict QoS requirements associated with 4G and 5G deployments.
Through rigorous testing, KPIs are observed and shared to ensure that the provided solution is compliant with stringent fronthaul SLAs. The featured Juniper Networks fronthaul platforms, including ACX7024, ACX7100-48L, ACX7100-32C, and ACX7509, are excellent choices for access and aggregation purposes. These platforms deliver enhanced performance, low latency, and high bandwidth with the necessary scale and advanced feature set.
