Higher Speed PON (G.9804 or HSP)

What Is Higher Speed PON?

Higher Speed PON, also known as G.9804 or HSP, constitutes a set of ITU-T recommendations for data transmission, capable of providing shared Internet access speeds of up to 50 Gbit/s (gigabits per second). This advanced system, employing digital signal processing, supersedes earlier PON technologies like single-channel XGS-PON and multi-channel NG-PON2. Moreover, it offers pathways for upgrading older PON iterations such as GPON, XG-PON, XGS-PON, and 10G-EPON.

Key Components of G.9804 Standards

G.9804.1

G.9804.1 (G.hsp.req), titled "Higher Speed Passive Optical Networks - Requirements," guides the development of higher speed PON systems. It outlines examples of the "services, user network interfaces, and service node interfaces" necessary for these advanced networks, including higher speed single channel (TDMA-PON), multichannel (TWDM-PON), and point-to-point overlay PONs. It also specifies requirements for backward compatibility with the G.9807.x series, which includes GPON, XG(S)-PON, and 10G-EPON systems. The standard reached consent in July 2019, was approved in November 2019, and was amended in August 2021.

G.9804.2

G.9804.2 (G.hsp.comTC), titled "Higher Speed Passive Optical Networks - Common Transmission Convergence Layer Specification," defines the frame format and media access control method for communication between optical line terminals (OLTs) and optical network units (ONUs) in higher speed networks. This specification supports various physical medium dependent (PMD) sublayers across all high-speed PON systems and is designed to be future-proof. It was approved in September 2021.

G.9804.3

G.9804.3 (G.hsp.50Gpmd), titled "50-Gigabit-capable Passive Optical Networks (50G-PON) - Physical Media Dependent (PMD) Layer Specification," sets the standards for the PMD sublayer of a 50 Gbps single-channel PON system (50G-PON), catering to residential, business, and mobile backhaul applications. This standard was approved in September 2021.

Benefits of Higher Speed PON

• Increased Bandwidth: With data transmission rates of up to 50 Gbps, Higher Speed PON can support more users and higher data demands.

• Enhanced Efficiency: The use of digital signal processing improves the overall performance and reliability of the network.

• Backward Compatibility: Ensuring smooth integration with existing PON systems like GPON, XG-PON, XGS-PON, and 10G-EPON, facilitating easy upgrades.

Future of Higher Speed PON

The future of Higher Speed PON is promising, driven by the continuous growth in data consumption and the need for more advanced networking solutions. As digital signal processing technology evolves, Higher Speed PON systems will likely become even more efficient and capable. The focus on backward compatibility ensures that future upgrades and enhancements can be smoothly integrated, protecting investments in current infrastructure.

In conclusion, Higher Speed PON is a forward-looking technology poised to meet the growing data demands of the future. By leveraging advanced digital signal processing and maintaining a focus on backward compatibility, it provides a scalable, high-performance solution for modern optical networks. This evolution in PON technology ensures that service providers can offer faster, more reliable internet services, thereby enhancing user experiences and supporting the increasing digitalization of our world.