Category: NGMN News

Earlier today, the NGMN Alliance successfully brought together key global operators to showcase unique 5G use cases beyond mobile broadband at its press and industry briefing at Mobile World Congress.

Barcelona, Spain – Taking place on the Deutsche Telekom stand with more than 150 attendees, NGMN welcomed speakers from AT&T, China Mobile, NTT DOCOMO, Orange, Vodafone and Deutsche Telekom itself. Covering 4G and 5G campus network solutions in industrial and entertainment industries, smart energy, remote medical healthcare, factory automation and 5G powered maintenance for Industry 4.0, the briefing explored 5G expectations in key vertical industries and the next steps the industry needs to take to overcome key challenges.

“The 5G use cases beyond mobile broadband presented during the briefing have truly highlighted the impact of 5G on fundamental vertical industries,” said NGMN CEO Peter Meissner. “The presentations given by some of the industry’s leading operators have clearly shown the potential that 5G has to transform a variety of industries and the challenges that we must all now work on overcoming in the journey towards 5G.”

Emmanuel Lugagne Delpon, Senior Vice President at Orange Labs Networks and Chairman of the NGMN Board, introduced the session by explaining the potential operator strategies of 5G introduction – starting with enhanced mobile broadband for consumers that seamlessly builds on current networks and then extending towards to the industry focused applications with URLLC ultra reliable low latency communications capabilities.

The use cases presented covered a broad range of applications:

• Emmanuel Lugagne Delpon, Senior Vice President at Orange Labs Networks, kicked off the session by revealing why immersive experience for Industry 4.0 needs 5G.
• Igal Elbaz, Senior Vice President of Wireless Technology at AT&T, discussed the creation of a 5G zone at the Magic Leap campus in Florida, enabling developers and creators to test applications and devices on a 5G network as the product is being built.
• Guangyi Liu, Wireless CTO of China Mobile Research Institute, China Mobile, explained how the unique capabilities of 5G technology will enable a different level of automation in energy networks.
• Seizo Onoe, Chief Technology Architect at NTT DOCOMO and President of DOCOMO Technology, highlighted the medical healthcare trials with partners on 5G remote and mobile diagnosis.
• Arash Ashouriha, Senior Vice President of Technology Architecture & Innovation at Deutsche Telekom, showcased the 4G and 5G campus network solutions available to industry customers, and the dual slice approach that integrates public and private LTE and 5G connectivity.
• Luke Ibbetson, Vodafone Group R&D Director, closed the presentations by discussing the transformation of factory automation, with a focus on spectrum licensing.

Following the presentations NGMN welcomed questions from the audience which covered a variety of topics, including 5G security, network sharing, QoS of E2E architecture and the role of operators in private networks for vertical industries.

“The briefing reflects the NGMN board’s focus on the strategic priorities for the organisation going forward,” said Emmanuel Lugagne Delpon. “We look forward to continuing these crucial discussions together guiding the evolution of 5G technology.”

Call for combined 5G and Wi-Fi network resources to address opportunities and use casesLondon, Frankfurt – NGMN and Wireless Broadband Alliance (WBA) have published the first results of their collaboration to drive the convergence of multi-technology RANs and core networks. The joint report identifies a number of emerging opportunities and use cases that the industry can benefit from through the convergence of 3GPP’s 5G and Wi-Fi, driven by the ever-enhancing capabilities of licenced and unlicensed technologies. It also highlights the key challenges, which must first be addressed in order to realise convergence over 3GPP Access and Wi-Fi – including tighter integration of Wi-Fi access in 5G networks, network manageability and policy control, and the enablement of Wi-Fi-only devices.

The convergence opportunity
Wi-Fi and cellular ecosystems have traditionally followed their own development paths. The latest versions of each technology have greatly enhanced capability compared with early offerings, with Wi-Fi 6 and 3GPP’s 5G, encompassing New Radio (NR) and LTE from Release 15 onwards, as well as the 3GPP 5G Core. However, as society increasingly depends on fast reliable data connectivity, NGMN and WBA believe an important capability for the industry is the convergence at a network level between 5G and Wi-Fi, so that the unique and complementary capabilities of both RANs can be leveraged to provide seamless network services. Bearing in mind that a significant amount of data traffic from smartphones use a Wi-Fi access, this will lead to a better user experience and create new business opportunities for both Wi-Fi and cellular providers.

New resource requirements
The report identifies a number of use cases and verticals that may require combined resources from both 5G and Wi-Fi networks in providing cost effective solutions that meet diverse sets of requirements on throughput, latency, connection density, coverage, availability and reliability. For example, enterprise services on cellular networks, and in particular, those that the 5G Core enables, may require a new look at the use of an access neutral mechanism for a number of reasons. These include gaps in coverage, the proliferation of indoor and outdoor Wi-Fi deployments, and potential for multi-site enterprise environments.
“Convergence of 5G and Wi-Fi can potentially bring major benefits to cellular operators, enterprise Wi-Fi and public Wi-Fi solution providers, giving access to 5G and enterprise services from both Wi-Fi and 5G access networks.” said Dr. Peter Meissner, CEO of the NGMN Alliance. “However, in order to realise service and network convergence, we have worked with the WBA to identify a number of requirements that must first be satisfied. This is particularly true in the enterprise and Public Wi-Fi space, where there is a demand from cellular operators for a standardised solution for improved visibility and control in the configuration and management of Wi-Fi access networks.”

5G/Wi-Fi Interworking
A number of industry developments and specifications address the interworking of 5G and Wi-Fi from a technical standpoint:

• 3GPP has already developed specifications to ensure tight integration of 3GPP and non-3GPP radio technologies, such as Wi-Fi. In order to better serve customers and provide the full 5G experience the tight integration of non-3GPP technologies needs to be ensured also within the 5G Core Network. Solutions enabling some of these objectives have already been adopted by 3GPP and Wi-Fi 6, such as the EAP authentication framework similar to Wi-Fi, to accommodate different wireless service subscription-types (e.g. mobile, wireless or fixed broadband) and their native authentication methods.
• 3GPP Release 15 provides some support for interworking between 5G and Wi-Fi. In particular, 3GPP Release 15 provides support for untrusted non-3GPP access (such as Wi-Fi) to the 5G core via Non-3GPP Interworking Function (N3IWF), with secure transport of Control-Plane/User-Plane (CP/UP) messages over an IKEv2/IPSec tunnels between the terminal devices and the N3IWF.
• 3GPP Release 16 is continuing the work by enhancing capabilities for Wi-Fi integration, including trusted Wi-Fi support and access traffic steering, switching and splitting.

However, challenges and needs remain – including the enablement of Wi-Fi only devices to connect to the 5G core, further study to ensure the tight integration between 5G and Wi-Fi networks, an interface to enable certain level of network manageability and policy control between 5G core and Wi-Fi networks, and the ability of a client to route traffic over one or more accesses, making optimal use of the available connectivity. As a next step, the WBA and NGMN are undergoing further study on these challenges in order to uncover potential solutions. This will culminate in the recommendation of a future strategy for Converged RAN deployment, ensuring the best user experience making use of both Wi-Fi and Cellular access.

Tiago Rodrigues, General Manager of WBA said: “Wi-Fi 6 introduces new capabilities for carriers, cities and enterprises to cost effectively provide additional coverage and capacity, mainly indoor, to address the 5G use case requirements. Now it’s time to fully capitalize on these capabilities by delivering a clear strategic path for converged RAN deployments. This is a priority. We will continue to work closely with NGMN and its members to review, develop and test potential solutions, as identified in our recent 5G White Paper.”

To download the RAN Convergence Interim White Paper, click here
For more information or to get involved, contact the NGMN Programme Management Office: office@ngmn.org