Advanced communication networks innovate in the daily life of the future – Samsung newsroom international


Samsung Newsroom features technical experts from Samsung R&D centers around the world to learn more about their work and how it directly improves the lives of consumers.

The expert interviewed for the series is Ratnakar Rao VR, who leads the Beyond 5G team at Samsung R&D Institute India – Bangalore (SRI-B). Rao will soon complete a decade at SRI-B, and most of his experience has been in the research and development of wireless communication technologies like 4G and 5G. Check out the interview below to learn more about the promising technologies Rao and his team have been working on.

Q: Advanced system software plays a crucial role in enabling all kinds of technologies developed to provide better user experience. How has applied AI research been taken into account in your communications work?

Traditionally, all cellular communication systems were implemented using mathematical models and were strictly rule-based. However, that is changing in the 5G era due to a few key factors.

First, since a single network must simultaneously meet a number of diverse use cases, such systems cannot perform to the best of their ability if implemented solely on the basis of modeling. traditional. Second, advances in computational algorithms and processor architectures are making it easier to run AI and machine learning models on a wider range of devices. Third, wireless networks are virtualized and split into micro-services that run in the cloud. AI capabilities on the device are also added to wireless terminals. Starting with 5G, networks will be tightly integrated with applications, requiring them to be more contextually aware of users and applications in order to provide personalized network experiences for all.

All of these factors enable and require wider use of AI and machine learning in next-generation wireless networks and devices.

Q: Can you please briefly introduce the IRS-B and the type of work that takes place there?

The Samsung R&D Institute in Bangalore (SRI-B) has established five Centers of Excellence (CoE) with the areas of focus of Communication, Camera and Multimedia, AI on Device, L ‘IoT and services. SRI-B has experience in executing projects from research to commercialization in each of these areas, and each year makes significant contributions to Samsung product lines on the back of these centers of excellence.

At the Communication CoE, SRI-B has dedicated teams working on mobile terminals, the development of the RAN / core network and wireless standards. A strong synergy between these teams made it possible to set up end-to-end business expertise. In addition to this, we recently launched advanced communications research with the aim of making impactful contributions to the evolution of Beyond 5G and 6G.

Q: What type of communication-related work are you and your team engaged in?

First of all, our team specializes in radio, data networking protocols and embedded modem system software. We design the 5G radio experience for different markets around the world. Our team is engaged in the development of 5G mobile terminal products for a range of global markets.

Second, we are engaged in the advanced research and development regarding communication protocols. Some of this work is found in Samsung products as differentiating features and solutions. The rest of our work is aimed at creating IP (intellectual property) standards and implementations for Beyond 5G and 6G systems.

Q: How do you think the Beyond 5G era will change the way people interact with technology in their everyday lives?

The first launches of non-autonomous 5G unlocked much of the previously unused spectrum in the mid and high bands and also allowed the existing 4G spectrum to be rearranged for use with 5G. Thus, the transition to a very high capacity communication system is underway.

This massive addition of capacity will allow more users to connect more devices to the internet and bring the benefits of connectivity to the masses who live in rural areas. For regular users, these benefits will be evident in terms of super high resolution streaming, faster downloads and uploads, and real-time interactive gaming. They will also see mixed reality experiences in video streaming and video calling.

Further improvements to 5G in the years to come will unlock mainstream infotainment and many other use cases. For example, the low power, low bandwidth features of IoT devices will help utilities, agriculture industry, and factories automate for better efficiency. Likewise, 5G via satellite will provide ubiquitous coverage around the world. The highly reliable and low latency optimizations applied to 5G networks will also enable better remote delivery of services such as healthcare and education.

Q: Which of SRI-B’s communications accomplishments are you most proud of?

At SRI-B, we are proud to have played a pivotal role in the launch of the world’s first 3G, 4G and 5G smartphones. Recently, SRI-B has enabled the aggregation of stand-alone 5G and 5G operators into mobile terminals for commercial use, developed 4G and 5G network software, and helped establish MC-PTT (Mission Critical Push to Talk) capabilities.

SRI-B has also been an IP powerhouse for several years. Each year, many IPs are created by SRI-B engineers from different fields. We have created more than 200 implementation IPs in the wireless communication field and more than 100 standard essential IPs in the areas of 4G and 5G.

Q: How does collaboration with other institutes like Samsung Research America, Samsung R&D Institute UK, and Samsung Research Korea complement your work and research capabilities?

We have worked closely with Samsung Research on the early technology development and achievement of 5G, and are now collaborating on the development of the nascent 6G technology. I firmly believe that there are many potentials that can be unlocked through further collaboration between SRI-B and the teams at Samsung Research America and Samsung R&D Institute UK.

SRI-B has a very large pool of communications engineers, including innovators and experts in the field. It is therefore possible to build quality teams and carry out research quickly. We actively explore these possibilities by interacting with R&D leaders in global research centers to enable breakthrough innovations.

Q: How are AI and machine learning applied to Beyond 5G and 6G wireless communication technology? How do you think these technological combinations will evolve in the future?

It is widely believed that AI and machine learning will have a significant influence on network management and radio resource management for Beyond 5G and 6G networks. We envision the presence of AI and machine learning applications in block-level AI, procedural AI, and system software AI, and are actively researching this.

    • Block-level AI: A specific block in the terminal or network could be added with AI / machine learning without impacting the rest of the system, resulting in performance improvements and / or compute savings. For example, a channel decoder might decide to complete iterations of the decoder sooner if it is able to predict whether the block decoding will eventually succeed or fail.
    • Procedural AI: This is where at least two entities in the end-to-end system exchange information to enable precise use of AI and machine learning techniques. For example, metadata must be exchanged between the terminal and the network for an automatic encoder or decoder to operate with a margin of error. Another example is the management of terminal mobility.
    • System software AI: Most entities in next-generation communication systems will need to operate in multiple modes. The on-board system software must be able to increase or decrease system resources very dynamically. AI-assisted embedded system software should learn context-specific requirements and adapt accordingly.

Q: You are a senior member of the Institute of Electrical and Electronics Engineers (IEEE). What kind of activities are you involved in this role? How does your position within the IEEE inform your other work?

In this role, I give lectures and guest lectures on various technological topics for student communities and teach fraternities in regional engineering schools. The role also allowed me to sow new subjects of study internally, which allowed us to initiate new collaborations with student communities and faculties of reputable universities.

The aim is to influence as many people as possible to improve their expertise in their field and pursue advanced research in the field of communications. I also represent Samsung in various discussions and discussions with industry, government and academia. My interactions help me stay in touch with the latest trends in various fields adjacent to my area of ​​expertise.

I also encourage my team members to publish their results in outstanding conferences and journals. This year and last year, we have posted over 20 articles in various outstanding forums.

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