Outstanding synchronization performance is ever more critical as mobile networks evolve toward 5G, and Infinera’s packet-optical portfolio continues to bring superior sync performance to network operators across the globe as it has for many years. Infinera’s Intelligent Sync (iSync) set of capabilities captures these strengths within three primary areas:

Industry-leading Layer 2 Synchronization Performance

Through the innovative design of Infinera’s XTM Series-based EMXP range of packet-optical transport switches, customers are able to deploy networks with industry-leading Synchronous Ethernet (SyncE) performance. This enables them to deploy mobile backhaul networks that improve upon the synchronization performance of Synchronous Digital Hierarchy (SDH)/Synchronous Optical Networking (SONET) networks by an order of magnitude or more.

The EMXP range offers a comprehensive set of synchronization capabilities featuring a number of sync solutions, all of which meet the requirements for Long Term Evolution – Advanced (LTE-A) and even 5G. This provides the ideal tools for managing frequency, time-of-day and phase synchronization requirements in different network deployment scenarios:

  • The industry-leading SyncE capabilities of the EMXP, as well as its low-latency performance, help the 1588 protocol provide superior network stability in hybrid SyncE assist mode.
  • The EMXPs’ support for 1588 transparent clock and boundary clock reduces packet delay variation (PDV) and wander significantly, resulting in a more stable mobile network that meets the tough phase synchronization requirements of LTE-A and 5G networks.

Patented Layer 1 Synchronization with Multiple Sync Domains per Wavelength

Transporting transparent synchronization within a framed wavelength-division multiplexing (WDM) wavelength (i.e. once a header is added for management, forward error correction, etc.) is not easy, and not all WDM vendors are able to transport signals transparently while also maintaining any embedded synchronization. Infinera not only achieves this but takes it one step further using XTM Series muxponders with patent-protected synchronization functionality that support multiple independent sync signals over a single wavelength. This is particularly useful in a wholesale environment in which an operator may need to support many wireless operators with differing synchronization strategies and clocks.

Outstanding Sync Monitoring and Management

Good synchronization is of limited use if it isn’t monitorable and manageable by network operations. Infinera’s iSync capabilities provide users with synchronization management maps and full sync source protection switching.