Tag: Diameter Signalling

How a Diameter Routing Agent Works

A Diameter Routing Agent sits at the heart of a Diameter network. It provides scalable, centralised routing of Diameter messages in a multi-vendor, multi-node environment within a service providers IMS and LTE core.

We’ve produced a short video to provide an overview of how the DRA works…

The Diameter Routing Agent is the central routing point in any Diameter network providing flexible routing and message manipulation to insure inter-op between multiple devices and device vendors. At the same time it prevents overload and congestion of diameter traffic through sophisticated load balancing and routing algorithms whilst delivering graceful scaling to match network demand.

Find out more about Squire Technologie’s Diameter Signalling Products here.

How a Diameter Signalling Controller Works

Diameter traffic is being driven by its use in 4G/VoLTE networks, IoT, autonomous vehicles and VoIP. As a result of this growth, network operators are deploying Diameter Signalling Controllers (DSC’s). What are they and how do they work?

We’ve produced a short video to address these fundamental questions, and to provide an overview of how the DSC works…

Building on Squire Technologies decades of signalling expertise the SVI-DSC Diameter Signalling Controller comes with powerful routing, message manipulation, debug , monitoring and maintenance features out of the box. Couple this with Squire Technologies commissioning and 24x7x365 support services insures ease of integration and rollout of services for Service Providers worldwide.

• Comprehensive Diameter Traffic Management
• Service Migration from 2G/3G services to 4G network
• Diameter Manipulation Engine for vendor interoperability
• Retain interoperability with legacy networks
• Roaming – topology masking and security with VoLTE support
• Wi-Fi offload for mobile subscribers
• Scalability – Advanced load balancing and congestion control

Find out more about Squire Technologies Diameter Signalling Controller here.

Integrating an OCS Platform to Facilitate 4G to 3G Roaming

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With DIAMETER signalling becoming the key interface for next generation networks and increasingly being driven by the growth of LTE, IoT, autonomous vehicles and VoLTE, it is crucial that operators are able to seamlessly communicate with subscribers as they traverse between legacy networks and IMS.

As a mobile operator deploys a state-of-the-art online charging system (OCS) in their 4G network, the platform needs to overcome inter-op challenges with subscribers as they roam into 3G networks.

An OCS platform typically supports a range of interface technologies – XML, HTML, JSON, DIAMETER etc. The charging functions in 3G networks are handled over the legacy SS7 CAMEL protocol. Furthermore in some 3G networks pre-pay subscribers are dynamically credit checked by the network over  Unstructured Supplementary Service Data (USSD), a legacy protocol commonly used for billing, location based services, mobile money and menu based information services.

To deliver end-to-end  3G <-> 4G Roaming you need to provide both CAMEL to DIAMETER and DIAMETER to USSD functionality.

 

THE SOLUTION
In order to manage the flexibility of DIAMETER and the forecasted volumes of signalling data the industry has developed a set of standard DIAMETER based network products. Included in this product set is the  Inter-Working Function (IWF)  which provides 3GPP specified DIAMETER to  SS7 CAMEL, MAP and RADIUS interworking and is obviously the primary product interface to the OCS.

 

 

At Squire Technologies our SVI_IWF product is tightly integrated with our Telephony Application Server (SVI_TAS) which provides a set of flexible API’s to allow for the rapid deployment of new interfaces, in this instance used to provide USSD to DIAMETER. The operator then went one step further and delivered a separate USSD application. They decided the interface to the OCS would optimally be performed over HTTP. It was a straightforward task to manipulate the HTTP API on the SVI_TAS to deliver this extended functionality.

 

The IWF is deployed and embedded in a pair of DIAMETER Routing Agent’s (DRA’s) that provide resiliency through redundancy, load sharing and balancing via sophisticated on-board routing.

Full support for session binding insures correct online credit control is being performed when multiple simultaneous services are being billed for a single subscriber.

 

 

This solution provides both flexibility and scalability for the operator. As network demand increases new instances of the OCS platform can be launched and configured to point its DIAMETER interface at the pair of DRA’s which will automatically route messages to and from the appropriate OCS. This model allows for ease of deployment in a cloud based NFV network allowing OCS resources to be easily deployed or removed as network demand dictates.

 

 

Solving The 4G LTE Roaming Puzzle

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In our very latest whitepaper we look at the challenges faced by operators providing roaming services to their subscribers, as the number of 4G LTE networks increases.

GSMA statistics reliably show there are approximately 800 GSM Operators worldwide with an additional 1,250 Mobile Virtual Network Operators (MVNOs). 606 operators have launched 4G LTE networks, with the GSMA predicting an increase of a third by the end of 2020. There is a now a worldwide network made up of 2G, 3G and 4G technologies.

So how do you seamlessly navigate this morass and successfully provide roaming services for your subscribers, and how do operators easily and cost effectively take advantage of lucrative roaming revenues from inbound roamers?

With 4G LTE well on its way to becoming a ubiquitous service the coalescing of new and old technologies creates its own unique challenges. As with all new technology you cannot simply deploy it in a vacuum while simultaneously disregarding what’s gone before in the way of legacy technology, and this is especially true of the mobile industry where individual operators move at their own pace with 4G LTE deployment.

At its heart the problem is that 3G networks run on the SS7 protocol and 4G LTE networks run on the Diameter protocol. The product that supplies the functionality to bridge between these technologies is a Diameter Signalling Controller, which provides a solution for clients focussing on flexibility, scalability and cost effectiveness.

4GLTEroamingBLOG
150x184x4Gpuzzle_paper_thumb.png.pagespeed.ic.35BBuX02lhIn this whitepaper you will learn:

  1. The fundamental technology issues that define Roaming between 2G, 3G and 4G networks.
  2. Which solution operators need to put in place to enable seamless roaming.
  3. What operators need to look for in a product to ensure ongoing success.

Read the full whitepaper now by downloading our Solving The 4G LTE Roaming Puzzle FREE whitepaper.

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