The Role of Cloud-based IMS in the Growth of 5G Network

The Role of Cloud-based IMS in the Growth of 5G Network
July 26, 2021 / Blog / posted by Naishil Jha

Cloud-based IMS (IP Multimedia Subsystem) is a fundamental technology for all 4G and 5G IP communication services. With a 5G-ready, cloud-enabled IMS platform, CSPs (Communication Service Providers) may improve productivity and redeem current network investment. Out of the total 7.9 billion mobile subscribers across the globe, almost half are using LTE and less than 20% are using VoLTE. The IMS system, as it is now for VoLTE, will continue to serve as the core voice network for a while.

To say that 5G flows throughout the mobile ecosystem is an understatement. It is transforming everything and pushing the trend towards cloud-based IMS. While the industry expects to rely on 5G infrastructure mainly in all networks, most of these will require considerable changes. Of course, IMS continues to be vital for voice services operators as they transition to 5G.

Transforming 5G Network with Cloud-based IMS:

IMS is essential for delivering voice services over 4G, VoLTE, and 5G networks. Operators who have abandoned voice on 2G or 3G networks must now move on. They can jump right to a more adaptable and responsive solution with a cloud-based IMS system.

The transformation is progressive. The first stage in the transformation process is to just implement VoLTE and IMS for voice calls. This allows 5G devices to rely on the VoLTE network to make and receive calls. When the VoLTE network has been established, voice can be transmitted over a 5G radio through NSA (Non-Standalone) option. In this case, 5G radio leverages an existing 4G packet core so that no modification in connectivity is made to IMS. The IMS must be modified to be access aware so that service assurance and billing processes can be distinguished.

Connecting the IMS core to 5G packet core components is the final stage in the process, where primary IMS advancement in terms of connecting and communicating with the 5G packet core will be visible.

Moving to Cloud IMS:

Operators need to move towards software-based networks using virtualization and cloud-based designs as it is essential for the migration to 5G. The possibility for those who do not upgrade their networks in the future is that they will be unable to compete with other operators and technology companies to acquire subscribers and service revenue.

5G is best implemented by using the existing VoLTE network for voice while redirecting the network if an operator upgrades to a new 5G radio. This shift means to move towards a virtualized software-based microservices architecture that allows operators to use the same VoLTE IMS core and 5G voice while allowing more efficient use of new services.

5G Innovation to Enhance Voice Services:

As 5G network implementations are pacing-up across the world with four-fold adoption rate over its 4G LTE predecessor, 5G promises to bring a significantly broader range of features and fresh innovations much more swiftly. These 5G networks will enable operators to offer voice services with greater automation and agility.

Bankai Group is a leader in Global Carrier Services with Carrier Grade IP network across the world. We provide telecom services to enable operators to provide real-time monitoring, alerts, and quality assurance with a proactive approach.

With the evolution of 5G and numerous IoT deployments in future, there will be millions of vulnerable network points, and these can be utilized for telecom frauds. We at Bankai Group recognize the necessity to help telecom operator to be future ready to mitigate the next-gen fraud practices and support services for clients to manage their systems and to provide their customers with consistently better services.

Cloud-based IMS and The Future of 5G Network

Cloud-based IMS platforms help operators to minimize costs and improve network efficiencies by terminating 2G and 3G networks and re-farming spectrum for 5G. Operators will find it difficult to provide VoLTE, meet consumer expectations, generate fresh revenue or cut costs without investment in a cloud-based IMS platform that transfers entire work into a containerized environment.

The IMS will be more critical than ever when operators start transitioning to 5G. With 5G, the voice is delivered through the IMS core network – previously using 4G radio, and then afterward operators transition to 5G new radio. The 5G network requires a cloud-based core and edge to meet extremely challenging network connectivity and network service requirements.

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Naishil Jha

Naishil is a Content Writer at Bankai Group with rich exposure in the field of Creative Content, Marketing Communications and Branding. With an academic background in Mass Communication and Journalism, he has made a career in content writing and has worked upon varied content pieces. In his leisure time he can be found reading about cricket, performing street photography and cooking some delicious food.
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