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Wireless Broadband Alliance establishes requirements for IoT Roaming


Latest white paper calls for use of WRIX specification to address challenges of interoperability

London, 22 May 2018 – The Wireless Broadband Alliance (WBA) has published its latest white paper, entitled: ‘IoT Interoperability: Dynamic Roaming’. The paper investigates how existing Wi-Fi roaming capabilities could help the IoT market with the evolution of IoT Device roaming, ensuring devices can seamlessly ‘talk’ to each other.

The aim of the study is to provide a framework for IoT roaming, demonstrating the value and opportunities to enhance the functionality for existing technologies with the use of the WBA’s Wireless Roaming Intermediary eXchange (WRIX) specification, in areas such as authentication, financial and data clearing, invoicing, security and automation.

Over the past 10 years, the WBA has built on the cellular ecosystem success story, enabling the building blocks that are scalable and allow operators in turn to build revenue streams in the Wi-Fi world. The ecosystem now leverages more frictionless business opportunities and IoT players may benefit from such similar opportunities and avoid inefficient “islands of connectivity”.

While roaming is being accomplished today on different types of networks such as cellular and Wi-Fi, the diversity of devices and the exponential growth in the market – over [i]20 billion IoT devices forecast by 2020 – means there is a distinct need for interoperability to allow the cross network roaming of devices. The ‘IoT Interoperability: Dynamic Roaming’ white paper addresses the need to find a dynamic way for devices to search for a computable network and automatically roam at scale without intervention. It focuses on the common requirements to enable IoT devices to connect to a non-home access network, successfully authenticate, enable accounting and facilitate subsequent billing while taking into consideration potential security and scalability concerns.

The study outlines how WRIX – the use of a modularized set of specifications to facilitate roaming between operators – can be used across the IoT Market for lessons learned, best practices and standards when developing each technology’s roaming specifications. Using the WRIX specification as a guideline for roaming, organisations can prepare their networks to facilitate simple, seamless and secure IoT connectivity for their users. The report highlights several areas where WRIX can be used or enhanced to address the immediate challenge of massive scalability. These include:

  • Adding RADSEC capabilities to the WRIX framework to enhance the security of IoT applications and enable automatic security for new deployment scenarios.
  • Using the WRIX framework as best practice to address the issue of identity and authentication between security domains.
  • Expanding the current WRIX definitions and specifications to include LoRa Alliance and MulteFire Alliance roaming support, to allow other IoT use cases to be supported.
  • For IoT technology that was built from the ground up, and therefore, involves a specific assessment on interwork possibilities, the WBA outlines collaboration opportunities.

“Cross-network device roaming is becoming increasingly important to fulfil the vast scalability requirements of the IoT. Yet deploying IoT roaming services is no easy feat, and the process will take several years,” said Tiago Rodrigues, General Manager of the WBA. “The industry must work together, which is why the WBA is advocating the use of WRIX to provide industry-wide standards for service providers. Having identified several areas where the framework can be enhanced, the WBA is now working to evolve WRIX to increase its capabilities, longevity, and industry value to support IoT roaming use cases.”

The new framework will be trialled by the WBA and its members, using the experience acquired with previous end-to-end interoperability trials such as Next Generation Hotspot (NGH). The WBA is also in discussions with industry alliances including the LoRa Alliance, the MulteFire Alliance, and eduroam regarding the development of a roaming framework for specific IoT technologies similar to the WRIX approach for Wi-Fi Roaming.

The WBA’s latest white paper, IoT Interoperability: Dynamic Roaming, is available to download here: https://www.wballiance.com/new-whitepaper-release-iot-interoperability-dynamic-roaming/

For more information on how to get involved in the WBA’s projects, please contact the PMO team.

[i] Source: Gartner.com (Gartner Says 8.4 Billion Connected “Things” Will Be in Use in 2017, Up 31 Percent From 2016)


About the Wireless Broadband Alliance
Founded in 2003, the mission of the Wireless Broadband Alliance (WBA) is to resolve business issues and enable collaborative opportunities for service providers, enterprises and cities, enabling them to enhance the customer experience on Wi-Fi and significant adjacent technologies.

Building on our heritage of NGH and carrier Wi-Fi, the WBA will continue to drive and support the adoption of Next Generation Wi-Fi services across the entire public Wi-Fi ecosystem, having a focus on four major programmes: Carrier Wi-Fi Services, Next Generation Wireless & 5G, IoT, and Connected Cities. Today, membership includes major fixed operators such as BT, Comcast and Charter Communication; seven of the top 10 mobile operator groups (by revenue) and leading technology companies such as Cisco, Microsoft, Huawei Technologies, Google and Intel. WBA member operators collectively serve more than 2 billion subscribers and operate more than 30 million hotspots globally.

The WBA Board includes AT&T, Boingo Wireless, BT, Cisco, Comcast, Intel, KT Corporation, Liberty Global, NTT DOCOMO and Orange. For a complete list of current WBA members, please click here: https://www.wballiance.com/join-us/current-members/

Follow Wireless Broadband Alliance at:
www.twitter.com/wballiance
http://www.facebook.com/WirelessBroadbandAlliance
https://www.linkedin.com/groups/50482

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