Showing posts with label Vendor Dell. Show all posts
Showing posts with label Vendor Dell. Show all posts

Monday, 11 December 2023

AT&T's Plans on Open RAN and 6G

AT&T was in news recently for their announcement about acceleration of Open and Interoperable Radio Access Networks (RAN) in the United States. According to their press release: 

This industry-leading move, in collaboration with Ericsson, will further the telecommunications industry efforts and help build a more robust ecosystem of network infrastructure providers and suppliers. AT&T’s spend could approach roughly $14 billion over the 5-year term of the contract with Ericsson. 

AT&T’s Open RAN plan is for 70% of its wireless network traffic to flow across open-capable platforms by late 2026. The company expects to have fully integrated open RAN sites operating in coordination with Ericsson and Fujitsu, starting in 2024. This move away from closed proprietary interfaces will enable rapid scaling and management of mixed supplier hardware at each cell site.  Beginning in 2025, the company will scale this Open RAN environment throughout its wireless network in coordination with multiple suppliers such as Corning Incorporated, Dell Technologies, Ericsson, Fujitsu, and Intel.

At the Brooklyn 6G Summit (B6GS), Chris Sambar, who leads AT&T’s Network organization and teams responsible for designing, engineering, building, and operating AT&T’s next generation mobile and fiber networks, gave a keynote on "Network: The Innovation Platform". The narrative of the talk says: 

Today’s 5G build is the foundation of 6G. Flexible and open architecture being developed and fine-tuned with 5G will be central to 6G, and maintaining a customer-centric, forward-looking mindset will be critical as we scale and deploy technologies such as Stand Alone core, edge computing, AI, and NTN integration. Implementing the lessons learned in the 5G era and ensuring we have end-to-end alignment across the 6 pillars of our architecture will be vital to making 6G a success.

RCR Wireless provides a concise summary of the talk here:

AT&T has spent $40 billion on spectrum in the last few years; Verizon has spent more than $50 billion; and T-Mobile US had to acquire another major operator to get its spectrum holdings. With 5G not even at its midway point and the industry already trying to figure out what they might have to spend on 6G, “it can’t be a bottomless-pit industry,” he said.

That said, Sambar did also discuss the promise of 6G for extended and virtual-reality immersive experience for training public safety and military members, and the potential of better network-focused AI and ML to save network operators “hundreds of millions or billions of dollars” if things like self-optimization of networks can be done better and faster. That in itself represents a major challenge. Sambar says that he has thousands of employees in network operations, between AT&T’s wireline and wireless networks and “hundreds” of algorithms that do very simple if-then work and essentially send tickets to humans when a scenario comes up that fits its if-then criteria. If one of those algorithms breaks, he said, “we have to go figure out where it is, what server it’s sitting on, what’s wrong with it and how do we fix it. I would love a machine to manage that for me”—or even better, to stitch the capabilities of multiple algorithms together for more efficient and effective AI/ML applicability to network operations.

The video of the talk is embedded below, thanks to IEEE TV:

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Tuesday, 29 June 2021

Vodafone UK Selects Commercial Open RAN Network Partners

Vodafone has been a huge supporter of the Open RAN movement. Not only have they supported it with projects, expertise, etc., they have also contributed their IPR to TIP to drive it further. Last year, I wrote about how they have been evangelizing the benefits to other operators. Now, Vodafone has unveiled its strategic vendors – Dell, NEC, Samsung Electronics, Wind River, Capgemini Engineering and Keysight Technologies – to jointly deliver the first commercial deployment of Open Radio Access Network (RAN) in Europe. A press release said:

The company believes the move will spark other large-scale Open RAN launches and spearhead the next wave of digital transformation across Europe.

Pioneered by Vodafone and its partners, Open RAN will drive greater innovation through a diverse and open vendor ecosystem. It will lead to a more cost-effective, secure, energy efficient and customer-focused network of the future.

Vodafone’s initial focus will be on the 2,500 sites in the UK that it committed to Open RAN in October 2020. It is one of the largest deployments in the world and will be built jointly with Dell, NEC, Samsung and Wind River. Vodafone also expects to use new radio equipment defined under the Evenstar programme, a joint initiative it contributes to. Capgemini Engineering and Keysight Technologies are providing support to ensure interoperability between all the components.

Starting this year, the vendors will work with Vodafone to extend 4G and 5G coverage to more rural places across the South West of England and most of Wales, moving into urban areas in a later phase. Vodafone is also working to launch Open RAN in other countries within both Europe and Africa, enabling the digital society to be accessible to all, with no one left behind. 

Under this initiative to deliver an open and disaggregated network in the UK, Samsung will be a reference RAN software provider. Samsung and NEC will supply Massive MIMO – a method to boost capacity of a mobile antenna – along with Samsung and Evenstar radio units, which establish a signal between users’ smartphones or devices and the mobile mast.

Evenstar radios are part of a joint effort between Facebook and Vodafone to create ‘white-box’ radio units within the Telecom Infra Project (TIP) and are a key component for Open RAN success. These will provide vendors with detailed specifications needed to develop compatible radio units much more cheaply, and are designed to encourage new players to the market to boost the ecosystem and stimulate innovation.

The initial deployments will be implemented using COTS (common off the shelf) Dell EMC PowerEdge servers to support the combined DU/CU function running Containers as a Service (CaaS) software from Wind River Studio, which will provide a distributed cloud-native platform hosting the Open RAN applications and virtualised RAN from Samsung. This gives Vodafone the benefit of being able to mix and match and install new software releases and upgrades more easily. 

Keysight Technologies will deliver its comprehensive Open RAN test solution portfolio designed to support conformance, interoperability and E2E system testing. Capgemini Engineering will be the key partner within our lab testing to ensure interworking of the Open RAN multi-vendor ecosystem.

The O-RAN Alliance 7-2x split, that defines the interface between the radio antenna and the baseband unit, will be used in the deployments, following successful test and simulations that make it the option of choice. The resulting Open RAN network is expected to improve energy efficiency compared to the existing solution from traditional widely deployed RAN products.

In addition, Vodafone is working with several chipset suppliers, including an important research & development (R&D) collaboration with Intel, whose role in developing Open RAN is widely recognized in the industry. Vodafone’s Open RAN Test and Integration lab in Newbury, UK, has been devised to be an innovation centre to foster collaboration and implement new ideas. In this space, Vodafone’s newly announced partnership with Qualcomm will provide solutions that will be added to the project in the future.

The new Open RAN lab will be complemented by two newly created European digital skills hubs in Málaga and Dresden, employing 600 and 200 people respectively. Opening later this year, the skill hubs will be used to develop a number of new solutions for businesses, including cyber security, mobile private networks and Open RAN.

Vodafone is working with other operators to lower the entry barriers for smaller vendors and startups. Recently published Open RAN technical requirements by Vodafone and other telecommunications companies will provide a blueprint to help expedite the development of new products and services based on industry specifications from the O-RAN Alliance (of which Vodafone is a member) and eventually ETSI standards (from the European Telecommunications Standards Institute), always compatible with 3GPP.

There was a considerable amount of confusion regarding different G's and Core, etc. It was all clarified in a Tweet from VF UK Communications Manager as can be seen above. It seems that Samsung went off and dusted their 2G stack to support a legacy technology along with 4G and 5G.

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