«Best-experience» bearer network for 4K videos

Huawei Technologies
13 Apr 2016

Sponsored article
Network evolution drives the rapid development of video services. The experience customers have while watching videos directly affects customer behaviors, which in turn affect carriers' service revenues. As such, it has become a necessity for carriers over the world to deploy bearer networks and build differentiated competitive advantages that satisfy differing experience expectations. Grading carriers' data and voice services can help establish the relationship between user experience and carrier network quality, driving network transformation from connection-centric to experience-centric.

4K video services offer a superior, immersive experience, one that features high quality and zero delay — it will redefine how we watch TV. However, this poses high requirements on bearer networks. Bandwidth acceleration alone is not enough to improve network throughput. To tackle this new challenge, Huawei has endeavored to build a low-delay, high-throughput simplified network for carriers and provide best-experience services, culminating in the best-experience bearer network solution.

The best-experience bearer network features a simplified network architecture, simplified O&M, future-oriented service deployment, and low costs. Specifically, E2E real-time awareness improves network-wide user experience, automatic network optimization guarantees user experience, and opening real-time parameters for user experience facilitates commercial innovation of carriers.

Customer value

Simplified network: Simplified architecture means low latency, easy maintenance and management. Integrated devices, flat networks, and simple configurations improve network performance and simplify management

SDN IPRAN: SDN IPRAN helps build a future-oriented high ground for rapid service provisioning and allows for rapid site deployment and low labor cost

Higher throughput: Intelligent acceleration and congestion avoidance engines specific for 4K and 2K are available to effectively improve throughput

Larger bandwidth: Bandwidth to be accelerated by upgrading devices and transforming the architecture at the access, metro, and core layers of fixed and mobile networks

Agile O&M, KPI awareness: Network awareness capabilities based on the KQI+KPI of a single service for a single user, visualized service KPIs, and fast fault locating make O&M more precise and agile

Technical perspective

IP FPM addresses E2E performance measurement on IP networks, which is implemented in a similar way as performance measurement on Ethernet networks. IP FPM offers the following functions:
E2E performance measurement in native IP, L2VPN, and L3VPN scenarios

Performance fault locating and hop-by-hop performance measurement on service paths

IP FPM directly measures IP services and monitors service changes online. IP FPM performance statistics serve as a reliable reference for assessing network performance and therefore are useful for fault diagnosis and service statistics. IP FPM can work together with the NMS to visualize service paths, addressing network performance bottlenecks.


Conventional time synchronization is implemented using NTP. NTP implements millisecond time synchronization; however, it cannot reach the microsecond time precision required by wireless base stations. GPS is currently used on base stations to implement frequency and time synchronization.

1588v2 implements sub-microsecond time synchronization, which has a precision similar to GPS but is advantageous in low costs and high maintainability and security. 1588v2 offers the following benefits:

Space localization: 1588v2 obtains the system clock directly from synchronous systems on the ground and is intended for LANs (including but not limited to Ethernet networks) using multicast communications.

High synchronization precision: 1588v2 offers sub-microsecond synchronization precision and perfect state machine; it is management-free with minimal human intervention needed.
Low costs: Minimal network resources and low processing power are needed.

For more information, please visit www.huawei.com.

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