Mobile/Cellular Network Operators

Bequant has helped us to save in national roaming costs and at the same time improve our customers’ quality of experience. We have had a very fast return on our investment.

Overview

Bequant helps mobile operators in two ways:

  • The Bequant TCP Acceleration (BTA) overcomes TCP performance issues in 3G/4G networks to significantly increase the network speed experienced by users. This improves the quality of experience (QoE), the customer satisfaction and loyalty and the operator reputation, yielding higher revenues.
  • The Bequant Traffic Compression (BTC) reduces traffic volume at the access network by acting on compressible web traffic. If the access network cost is based on traffic volumes (often the case for full MVNOs with a national roaming agreement) this traffic reduction is directly translated into cost savings.

Acceleration Results

This section shows the quality of experience improvement with live traffic in a 4G mobile operator in production. During several days, two MEDUX probes from CaseOnIt generated browsing, download and video traffic and measured several indicators of QoE. The two probes were at the same place and coverage conditions, one was accelerated by the BTA and the other was simply forwarded.

This chart shows page loading time in seconds (the smaller the better) for the most popular web sites, along with the time reduction achieved by the acceleration.

This chart shows average download and uploads speeds (the bigger the better), along with the improvement obtained. The download was a 2.4MB file and the upload was a 5MB file, both using commercial CDNs.

This chart depicts the number of stalling events per video session and the time to start viewing a video after clicking start (the smaller the better). The reduction percentages are also included.

Compression Results

The compression rate (output data vs input data) typically achieved by the BTC is 50%. How much this represents as overall traffic saving depends on the percentage of compressible HTTP in the network traffic mix. A typical mix is 80% of TCP with 20% of HTTP, of which 20% is compressible, leading to an overall traffic saving of 1.5% in the backbone and in the radio network. Given the high cost of the access network, even a saving of a few percentage points will be a strong business case to make the investment, which can be recouped in a few months.

The BTA is also interesting from a traffic saving point of view, since it resolves retransmitted traffic locally and reduces interconnection costs.

Deployment

Bequant software runs on Bequant Nodes (BQN), which are transparently deployed in the Gi interface as a bump-in-the-wire between the access gateways (e.g. PDN-GW, GGSN) and the next router towards the Internet. Normally, one BQN node of the required capacity is collocated per access gateway.

The BQN only needs to be on the path of the traffic to optimize and it is compatible with other network elements such as traffic policers or shapers. Note that a BQN deployment can support both TCP acceleration (BTA) and web compression (BTC) simultaneously in the same node.