14/04/2025
Datacom Technology for Mobile Backhaul and Private 5G Networks

Mobile Backhaul infrastructures, responsible for connecting cellular antennas to the operator’s core network, have undergone a significant transformation, migrating from deterministic systems to IP/Ethernet-based architectures. This change reflects not only technological advances, but also the growing need for precise synchronization, crucial to maintaining the quality and continuity of communications in modern 4G and 5G networks.

 

Synchronization in Deterministic Networks vs. Statistical Networks

For a long time, telecommunications networks were structured based on deterministic technologies, such as SDH (Synchronous Digital Hierarchy). This type of technology stood out for its intrinsic synchronization, where each node in the network received an extremely precise clock signal, ensuring high reliability in critical applications, such as area switching during roaming in mobile networks.

Although efficient for the demands of its time, SDH had significant limitations in scalability and flexibility, which drove the transition to IP-based networks. With the increasing adoption of Ethernet networks — initially designed for data traffic without synchronization requirements — new challenges emerged. The arrival of 4G and 5G mobile technologies amplified these difficulties, requiring the creation of advanced synchronization mechanisms to support mobility and high-speed data transmission.

Although efficient for the demands of its time, SDH had significant limitations in scalability and flexibility, which drove the transition to IP-based networks. With the increasing adoption of Ethernet networks — initially designed for data traffic without synchronization requirements — new challenges emerged. The arrival of 4G and 5G mobile technologies amplified these difficulties, requiring the creation of advanced synchronization mechanisms to support mobility and high-speed data transmission.

In modern mobile networks, synchronization plays an essential role, especially for the following reasons:

  • Avoids interference between cells: In mobile networks, different cells share the same spectrum (especially in TDD – Time Division Duplex mode). If they are not synchronized, the uplink of one cell can interfere with the downlink of another, generating noise and data loss.
  • Enables efficient spectrum reuse: Synchronization allows different cells to operate at close or even the same frequencies without interfering, maximizing spectrum reuse — essential for density and capacity in urban areas.
  • Enables advanced techniques such as Massive MIMO and beamforming: These techniques rely on precise timing to align signal beams. Any deviation in timing degrades signal gain and efficiency.
  • Facilitates smooth handover between cells: Switching cells without losses requires that base stations are synchronized — especially in high-speed mobility (trains, cars).

In short, without synchronization, modern mobile networks lose their efficiency, increasing interference, reducing capacity and wasting spectrum.

With synchronization, the network works like a "digital ballet", where all elements dance to the same rhythm, extracting the maximum from the available spectrum.

Protocols such as PTP (Precision Time Protocol - IEEE 1588v2) and SyncE (Synchronous Ethernet) play a key role in enabling Ethernet networks to achieve levels of precision capable of meeting the rigorous time and frequency demands of mobile communications.

Datacom, as a leader in network infrastructure solutions, has developed a line of Ethernet switches that incorporate these synchronization technologies, positioning itself as a reference in the sector.

 

Datacom Solutions for Mobile Backhaul Networks

To meet the specific challenges of modern mobile networks, Datacom offers a line of Ethernet switches designed to support high-performance applications in 4G and 5G environments. These devices combine robustness, flexibility and advanced support for synchronization protocols, making them essential for operators and providers looking to optimize their backhaul infrastructures. See below:

DM4376
 

The DM4376 is a Carrier Grade switch based on the DmOS operating system, ideal for Metro Ethernet networks and mobile applications.

  • Interfaces: 2 10/100/1000Base-T ports (RJ-45), 4 1000Base-X ports (SFP) and 4 10GBase-X ports (SFP+).
  • Synchronization: Full support for IEEE 1588v2 protocol (Transparent Clock, Boundary Clock) according to ITU-T 8275.1 profile (Full timing support) and Synchronous Ethernet (SyncE).
  • Advanced Features: VLANs (QinQ, VLAN Translate), static and dynamic routing (OSPF and BGP), MPLS support (VPWS, VPLS and L3VPN).
  • Compact Design: Equipment with 1U height, redundant power supplies (hot-swap) and compatible with standard 19-inch racks.

 

DM4378

The DM4378 expands the functionality of the DM4376, adding advanced synchronization features to meet applications that demand extreme frequency and phase accuracy.

  • Interfaces: 2 10/100/1000Base-T ports (RJ-45), 4 1000Base-X ports (SFP) and 4 10GBase-X ports (SFP+).
  • Advanced Synchronization: Support for BITS, ToD, 10 MHz In/Out, 1 PPS In/Out and integrated GNSS (embedded GNSS), allowing its operation as Grand Master Clock. It also includes full support for IEEE 1588v2 (Transparent Clock, Boundary Clock and Ordinary Clock) according to ITU-T 8275.1 profile (Full timing support) and SyncE.
  • Advanced Features: VLANs (QinQ, VLAN Translate), static and dynamic routing (OSPF and BGP), MPLS support (VPWS, VPLS and L3VPN).
  • Compact Design: Equipment with 1U height, redundant power supplies (hot-swap) and compatible with standard 19-inch racks.

 

DM4280

The DM4280 is a high-capacity aggregation switch designed for Metro Ethernet networks, data centers and large mobile infrastructures.

  • Interfaces: 20 1G/10G ports (SFP+), 4 10G/25G ports (SFP28) and 2 100G ports (QSFP28), with throughput of up to 1080 Gbps.
  • Synchronization: Support for BITS, ToD, 10 MHz In/Out, 1 PPS In/Out and embedded GNSS, allowing its operation as Grand Master Clock. It also includes full support for IEEE 1588v2 (Transparent Clock, Boundary Clock and Ordinary Clock) according to ITU-T 8275.1 profile (Full timing support) and SyncE.
  • Advanced Features: VLANs (QinQ, VLAN Translate), static and dynamic routing (OSPF and BGP), MPLS support (VPWS, VPLS and L3VPN).
  • Standalone Design: 1U high equipment, redundant power supplies (hot-swap) and compatible with standard 19-inch racks.

 

Private 5G Networks: A New Opportunity

In addition to traditional carrier mobile networks, a very interesting application supported by this type of equipment, and which is growing in the global market, is the creation of private 5G networks.

Companies in sectors such as manufacturing, logistics and energy are implementing their own 5G infrastructures to meet specific connectivity, security and performance needs.

 

These private networks allow for greater control and customization, enabling advanced applications such as industrial automation and the Internet of Things (IoT). For service providers, this niche represents a significant business opportunity. Studies indicate that annual investments in private 5G networks for vertical industries will grow significantly in the coming years.

 

Conclusion

The transition from deterministic to IP-based networks has marked a new era of innovation and efficiency in telecommunications. This shift, driven by increasing demands for scalability, flexibility and synchronization, has required the creation of advanced technologies such as PTP and SyncE, which ensure the continuity and quality of modern mobile networks.

Datacom Ethernet switches, such as the DM4376, DM4378 and DM4280, are designed to meet these challenges, delivering precision, robustness and high capacity. In addition, the emergence of private 5G networks presents a new frontier, allowing companies in sectors such as logistics, manufacturing and healthcare to develop customized infrastructures to meet their specific demands.

With an innovative portfolio, Datacom not only supports the evolution of traditional networks, but also paves the way for new connectivity and business models. Whether in mobile operator networks or the emerging opportunities of private 5G, our solutions provide the foundation for a future-proof telecommunications infrastructure.

Want to know how Datacom solutions can transform your network infrastructure? Click the button below and talk to our sales team now! We are ready to help you build the network of the future.

 

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