Payload Compression System

Helion Tech LogoAs network traffic grows exponentially, data compression becomes increasingly important to maximize utilization of constrained channel bandwidth. The Helion Compression System IP core is designed with this in mind, and is ideal for use in Microwave Backhaul applications, Broadband Wireless Access for 802.16e (WiMAX), and potentially other Multi-Link Multi-In Multi-Out (MIMO) applications. The IP core uses a very robust and mature implementation of the LZRW lossless compression algorithm. The core is seamlessly scalable from 500Mbps to over 3Gbps in ECP3, and may be used in typical networking applications at either Layer 2 or Layer 3.

It is designed for easy in-line operation with network packets, yet is protocol agnostic. A generic but flexible header pass-thru allows different protocol and encapsulation scenarios. The final re-encapsulation decision is left to the user, either by changing existing protocol type fields or setting flags in proprietary link-layer headers.

The system contains all the logic needed to queue and allocate packets fairly across multiple engines, and to ensure the original order is preserved at the output. Latency is broadly equivalent to the store and forward time, since the whole packet must be seen to make a decision whether compression has succeeded or not.


  • Scalable throughput with 1 to 5 compression engines covering a range of 500 Mbps to over 3 Gbps
  • Scalable buffers with support for standard 2K frames or 9K Jumbo frames
  • Designed for Layer 2 & 3 networking and suitable for many different protocols
  • Simple in-line operation
    • Single “store & forward” operation required
    • Protocol agnostic generic header & payload
    • Customer/application decides where in frame to start compression, and how format is signalled over link
  • LZRW compression algorithm
    • Helion’s high speed hardware implementation
    • Packets compressed independently for robustness
  • Complementary to header compression and may be applied before or after various schemes
  • High throughput rates for long packets and high frame rates for small packets
  • Latency is essentially store & forward time

Ordering Information

This IP core is supported and sold by Helion Technology, contact Helion Technology at or visit their website at for more information.