Open RAN
Analysis of Dish Network – AWS partnership to build 5G Open RAN cloud native network
On its Q1-2021 earnings call, Dish Network Chairman and Co-founder Charlie Ergen did not provide any specifics regarding Dish’s deal with Amazon/AWS or its overall plan to build a nationwide 5G Open RAN, “cloud native” core network. Are you a bit tired of cliché’s like this:
“We’re building a Netflix in a Blockbuster world.” All Netflix did was put video on the cloud. Instead of going to a physical store, you put it in the cloud. Right. All the business plans in the world, all the numbers, all the thought if they just did something simple they put it in the cloud and the technology was they were a little ahead of the technology but the technology got there. All we’re doing is taking all those towers that you see as you drive down the highway, we basically put them in the cloud. And so instead of driving to physical store and rent a movie, you’re going to get all your data and information and automation everything from the cloud. And so it’s a dramatic paradigm shift in the way network is built and it should and it’s an advantage over legacy carriers who have 30-year-old architecture.” Of course, that’s incorrect as almost all 5G carriers plan to build a 5G cloud native core network.
Dish is planning to build the world’s first standalone, cloud-based 5G Open Radio Access Network (O-RAN), starting with the launch of a 5G wireless network for enterprise customers in Las Vegas, NV later this year.
Dish says it will leverage AWS’s architecture and services to deploy a cloud-native 5G network that includes O-RAN—the antennas and base stations that link phones and other wireless devices to the network. Also existing in the cloud will be the 5G core, which includes all the computer and software that manages the network traffic. AWS will also power Dish’s operation and business support systems.
“Amazon has made massive investments over the years in compute storage transport and edge, [and] we’ll be sitting on top of that and as we tightly integrate telco into their infra, then we can expose APIs to their development community, which we think makes and enables third-party products and services to have network connectivity, as well as enterprise applications,” said Tom Cullen, executive VP of corporate development for Dish, explaining some of the technical details of the arrangement during Thursday’s earnings call.
Ergen reiterated Dish’s plan to spend up to $10 billion on its overall 5G network and provided milestone date for completion of the first phase of the 5G build-out.
“All of that $10 billion isn’t spent by June of 2023, which is our major milestone,” Ergen said, pointing to the company’s agreement with the U.S. government to cover at least 70% of the population with 5G no later than June 14, 2023. However, Ergen has an escape hatch:
“The agreement we have [with the FCC] recognizes that [there could be] supply chain issues outside of our control, and that the timelines could be adjusted. But we don’t look at it that way internally. There is always unforeseen circumstances, and this one might be particularly acute. But we’re not going to let anything stop us. We’re focused on meeting our timelines, and regardless of what the challenges are. And we’ll have to reevaluate that from time to time, but we’re focused right now on Las Vegas and we’re focused on the 20% build-out by June of next year.”
“We’re not going to let anything stop us, he added. The $10 billion “does take us through the complete (5G) buildout.”
On the 5G cloud native aspect, Ergen said:
“Yes, we anticipated a cloud native network from the beginning, he said. “So the $10 billion total build-out cost that we announced a couple of years ago–I think people are probably still skeptical … But you can see where we’re headed. Most of your models will probably take a lot of capex off the board when you understand the architecture, and we’re not going to go through all the architecture in this call, but it’s certainly has a material impact on capex.”
Dish said last week it plans to run all of its network computing functions inside the public AWS cloud – a plan that represents a dramatic break from the way most 5G networks around the world run today. Many analysts think that’s a huge cyber-security risk as the attack surface is much greater in a virtual, cloud based network.
Marc Rouanne — Executive Vice President and Chief Network Officer:
“Yeah, the way to think of our cloud native network is a network of networks, that’s the way it’s architected. So when a customer comes to us, it’s easy for us to offer one sub network, which we can call it private network and there are techniques behind that like slicing, like automation, like software defined, so I’m not going to go into the techniques, but natively the way to think of it is really this network of networks. Right. And then, as Stephen, you’ve seen that you plan this to the postpaid customers and telling you how they would shake lose sub networks.”
“Absolutely, yeah. No, I think we’ve talked to a number of customers across multiple verticals in different industry segments and is an increasing appetite in demand for the kind of network that we’re building, which is really to enable them to have more security, more control and also more visibility into the data that’s coming off the devices, so that they can control their business more effectively. So we’re seeing a terrific demand. And the network architecture, we’re putting in place actually enables and unlocks that opportunity for those enterprise customers and it’s again not restricted to any specific vertical.
We’re touching a lot of different companies and a lot of different vertical segments across the country and the other aspect of the opportunity that we see for ourselves is that while we build out a nationwide network, we are in the process of working with customers and prospective customers on private networks that are not limited by the geography of our national footprint. So we can deploy those within their environments to support their business operations as well. So the demand we’re seeing is terrific and we’re already engaged with a number of customers today.”
Ergen chimed in again:
“The cloud infrastructure as it existed a couple of years ago, really didn’t handle telco very well, there has been a lot of R&D and investment that they’ve had to make to transform their network into something that where a telco can operate in the cloud, because it’s a little bit different than their traditional IT infrastructure. And then today they are, they were best in class room for what we needed and whether it be their APIs and the documentation and discipline and vendor at the — community that supports them and their — the developers and then of course obviously reach into the enterprise business. So it was — so that’s the first and foremost.
And then the second thing I think is, is the company committed? I’m not going to put words in Amazon’s mouth, I’ll let them talk to their commitment, but they’ve done a lot of work for us to help us without knowing where they have the deal or not and very appreciative that it. I think it’s helpful that Andy will become the CEO because he’s owned this project from the start and he can — he will be able to move all the pieces within Amazon to focus on this. And so I think at the end of the day, I think we’re going to be their largest customer in cloud and I think they’re going to — they may be the largest customer in our network. I mean, but we have to build a network and prove it, and they have to build and prove it. I think that all other carriers around the world will, including the United States will look at Amazon as a real leader here because we’re just doing something different.”
Stephen Bye — Executive Vice President, Chief Commercial Officer
“Yeah. So just in terms of what the Las Vegas build looks like. I think there are several attributes that are really important to what we’re doing to build on Charlie’s comment. One is we are building a cloud native infrastructure. We are using an Open Radio Access architecture. But it’s also a 5G native network. We’re not trying to put 5G on top of 2G, 3G and 4G, the infrastructure that we’re deploying is optimized for 5G and the way we’ve designed the network from an RF perspective and a deployment perspective is to take advantage of the 5G architecture as well as the 5G platform. And so, what does that look like?
It’s basically a new network, it’s new infrastructure, it’s designed using all of the spectrum bands that we have and the RF is optimized to take advantage of that. So we’re on a path to launching that in the third quarter, but it’s one of a number of markets we have coming on. We just have announced those markets through the end of the year, but it’s the first, obviously a number that we have in flight today and we’ve got activity going on across the country to actually build out this network. So it will be the first one that people can touch and feel and get the experience, but it is really a 5G native network and we’ve proven that O-RAN from a technology perspective can work compared to that at the end of last year. Now we are in the execution phase, now we’re in the deployment phase and so you know Vegas will have to be the first one that it will be a fully deployed market that people will be able to touch and feel and experience.”
Bye added that the 5G build-out will be done in phases but the network is designed to support all customers across all segments.
5G Network End-to-End Architecture. Image courtesy of AWS.
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In a note to clients, analyst Craig Moffett said that Dish was purchasing services from AWS rather than Amazon investing in Dish’s 5G network:
“It was a purchase agreement, albeit one freighted with lots of rather fuzzy jargon, and nothing more. Notably, Verizon already has its own relationship with AWS, and theirs does call for AWS to co-market Verizon services to AWS’s enterprise customers. By contrast, the Dish agreement calls only for Dish to market AWS services to Dish’s customers, not the other way around. Objectively, it is Verizon, not Dish, that has the more strategic relationship.
Amazon isn’t likely to market a service to its customers unless they are highly confident that its quality is first rate and that its staying power is assured. Perhaps Dish will get there. But it won’t be clear that they have arrived at that point until their network is successfully serving customers… without the safety net of the T-Mobile MVNO agreement. That’s not until 2027. That feels to us like a long time to wait.”
Regarding Dish Network’s new business model, Craig said “It is now fair to say that Dish’s core business is wireless rather than satellite TV. Not by revenues, of course; the wireless business is today but the modest reseller stub of what once was Boost (Mobile). But certainly by valuation….What does matter, however, is the extent to which the satellite TV business can serve as a source of funds for financing the wireless business.”
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References:
https://d1.awsstatic.com/whitepapers/5g-network-evolution-with-aws.pdf
https://docs.aws.amazon.com/whitepapers/latest/cicd_for_5g_networks_on_aws/5g-networks-on-aws.html
Mavenir and Xilinx Collaborate on Massive MIMO for Open RAN
Mavenir, an upstart end-to-end cloud-native network software provider and Xilinx, a leader in adaptive computing, announced today the companies are collaborating to bring to market a unified 4G/5G O-RAN massive MIMO (mMIMO) portfolio to enable Open RAN deployments. The first mMIMO 64TRX joint solution is expected to be available in Q4 2021.
Working together, the two companies have successfully completed end-to-end integration of a first-generation mMIMO solution using Open RAN principles. Held at the Mavenir Lab in Bangalore, India, the integration covered multiple deployment scenarios and was evaluated by six CSPs, all leading global operators. Mavenir delivered the Virtualized RAN (vRAN) support for mMIMO, including Core Network, CU and DU, with Xilinx providing the Category B O-RAN Radio Unit.
“This integration demonstrates an efficient Open RAN massive MIMO solution to achieve diversification of the telecommunications supply chain,” says Pardeep Kohli, President and CEO, Mavenir. “This is an important milestone in the delivery of open and interoperable interfaces enabling the deployment of mMIMO in high density, high mobile traffic metro areas.”
“We were early proponents of Open RAN technology along with Mavenir and actively led in standards development in the industry through many field trials around the world,” said Liam Madden, executive vice president and general manager, Wired and Wireless Group at Xilinx. “With the investment we have done on our market-leading wireless radio technology and massive MIMO R&D, we are excited to collaborate with Mavenir to bring our collective technology and radio system expertise together that will accelerate the deployment of market leading 5G O-RAN massive MIMO radio solutions.”
With history of leadership success in various 4G and 5G network deployments worldwide, the companies are jointly developing the next generation of mMIMO products which will bring the world’s first O-RAN compliant 64TRX mMIMO products that support up to 400MHz instantaneous bandwidth in a compact form factor. Mavenir’s vRAN software supports Multi-User MIMO with up to 16 layers, advanced receiver algorithms, full digital beamforming – all running on Mavenir’s open and flexible cloud-native platform, as well as on other cloud platforms.
These products will leverage Xilinx’s technology platform including RFSoC DFE and Versal AI for advanced beamforming, delivering a fully integrated hardware and software O-RAN compliant mMIMO solution.
The wireless industry’s focus is squarely set on massive MIMO as mid-band spectrum 5G deployments continue, particularly following the record high mid-band 5G spectrum auction that concluded in the U.S. earlier this year. Massive MIMO is especially important in mid-band 5G networks because it allows operators to densify network coverage, increase capacity and coverage, and reduce the need for incremental outdoor sites, all of which translates to less labor and lower costs.
Mavenir and Xilinx have not yet disclosed the specifications for the equipment, but claim the equipment at the top of the portfolio will feature a 64-antenna array for transmitting and receiving signals and support up to 400 megahertz of bandwidth. The initial supply of radios will support C-band spectrum in the U.S., and the companies plan to later support mid-band spectrum for 5G deployments in Europe, the Middle East, and India.
The vendors are coming together to prove that “open RAN massive MIMO radios are a reality, and we will deliver that to the market. Our first open RAN massive MIMO radio will be labs ready by early Q4 and field-trial ready by the end of the year,” said Gilles Garcia, a senior director at Xilinx.
“5G Open RAN has significant momentum in the market with ABI Research forecasting network vendor spending to reach $10 billion by 2026-27 and then surpass traditional RAN at $30 billion by 2030,” said Dimitris Mavrakis, senior research director of 5G at ABI Research.
“As Mavenir and Xilinx continue to work together to accelerate O-RAN-based massive MIMO adoption, their solutions will be well-timed to serve this high-growth market with the higher spectral efficiency, performance, power efficiency and cost needed as 5G demand intensifies.”
Analysis of Open Network Foundation new 5G SD-RAN™ Project
Executive Summary:
In a move that will help promote multi-vendor interoperability, the Open Networking Foundation (ONF) today announced the formation of the SD-RAN project (Software Defined Radio Access Network) to pursue the creation of open source software platforms and multi-vendor solutions for mobile 4G and 5G RAN deployments. Initially, the project will focus on building an open source Near Real-Time RAN Intelligent Controller (nRT-RIC) compatible with the O-RAN architecture.
The new SD-RAN project is backed by a consortium of leading operators and aligned technology companies and organizations that together are committed to creating a truly open RAN ecosystem. Founding members include AT&T, China Mobile, China Unicom, Deutsche Telekom, Facebook, Google, Intel, NTT, Radisys and Sercomm. All the project members will be actively contributing, and this includes the operators contributing use cases and trialing the results, according to the ONF. However, the larger cellular base station vendors that are ONF members, Nokia, Samsung, ZTE, Fujitsu, NEC were silent on their participation in this SD-RAN project.
There may be some confusion caused by ONF’s SD-RAN project as it is the third Open RAN consortium. The O-RAN Alliance and TIP Open RAN project are working on open source hardware and open interfaces for disaggregated RAN equipment, like a 4G/5G combo base station.
In a brief video chat yesterday, Timon Sloane, VP of Ecosystem and Marketing for ONF told me that this new ONF SD-RAN project would be in close contact with the other two Open RAN consortiums and distinguished itself from them by producing OPEN SOURCE SOFTWARE for disaggregated RAN equipment—something he said the O-RAN Alliance and TIP Open RAN project were NOT doing.
That should go a long way in dispelling that confusion, but it nonetheless presents a challenge on how three consortiums can effectively work together to produce meaningful open source software code (ONF) and hardware (O-RAN Alliance and TIP) specifications with joint compliance testing to ensure multi-vendor interoperability.
Sloane told Matt Kapko of SDXCentral: “The operators really are pushing for separation of hardware and software and for enabling new innovations to come in in software without it being tightly coupled to the hardware that they purchase. And xApps are where the functionality of the RAN is to be housed, and so in order to do this in a meaningful way you have to be able to do meaningful functions in these xApps,” Sloane said.
However, no mention was made in the ONF press release of a liaison with either 3GPP or ITU-R WP5D which are producing the standards and specs for 5G and have already done so for 4G-LTE. Neither of the aforementioned O-RAN consortiums have liaisons with those entities either.
There are other complications with Open RAN (independent of SD-RAN), such as U.S. government’s attempt to cripple Huawei and other China telecom equipment vendors, need for a parallel wireless infrastructure, legacy vs greenfield carriers. These are addressed in Comment and Analysis section below.
µONOS-RIC:
Central to the project is the development of an open source near-real time RIC called µONOS-RIC (pronounced “micro-ONOS-RIC”).
µONOS is a microservices-based SDN controller created by the refactoring and enhancement of ONOS, the leading SDN controller for operators in production tier-1 networks worldwide. µONOS-RIC is built on µONOS, and hence features a cloud-native design supporting active-active clustering for scalability, performance and high availability along with the real-time capabilities needed for intelligent RAN control.
µONOS-RIC is designed to control an array of multi-vendor open RAN equipment consistent with the O-RAN ALLIANCE architecture. In particular, the O-RAN ALLIANCE E2 interface is used to interface between µONOS-RIC and vendor supplied RAN RU/DU/CU RAN components.
xApps running on top of the µONOS-RIC are responsible for functionality that traditionally has been implemented in vendor-proprietary implementations. A primary goal of the SD-RAN project (and, not coincidentally, for the operators who founded the O-RAN consortium) is to enable an external intelligent controller to control the RAN so that operators have both visibility and control over their RAN networks, thus giving operators ownership and control over how spectrum is utilized and optimized along with the tools to deliver an optimal experience for users and applications.
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Relationship to O-RAN Alliance, O-RAN Software Community and TIP:
The participating members of the SD-RAN project plan to implement, prototype and trial an advanced architecture that enables intelligent RIC xApps to control a broad spectrum of SON and RRM functionality that historically has been implemented as vendor-proprietary features on bespoke base station equipment and platforms. SD-RAN’s focus and goals are complementary to various efforts across the industry, including work taking place within the O-RAN ALLIANCE, the O-RAN Software Community and the TIP OpenRAN Project Group.
SD-RAN will follow O-RAN specifications as they are developed and will also make use of components of existing open source to facilitate interoperability. As the project pioneers new functionality, all extensions and learnings that come from building the system will be contributed back to O-RAN ALLIANCE, with the intent that these extensions can inform and advance the O-RAN specifications.
The SD-RAN work inside the ONF community will take place in parallel with work being contributed to the O-RAN Software Community. The intent is for interoperable implementations to come out of both efforts, so that a mix of open source and vendor proprietary components can be demonstrated and ultimately deployed.
Timing and Availability:
The SD-RAN project already has a working skeleton prototype of the µONOS-RIC controller above a RAN emulation platform through the E2 interface. This implementation is demonstrating handover and load balancing at scale, supporting over 100 base stations and 100,000 user devices with less than 50ms handover latency (less than 10ms latency for 99% of all handovers).
The SD-RAN community is advancing towards a field trial by early 2021, working with RAN vendors to integrate carrier-grade RU/DU/CU components while in parallel implementing xApps to demonstrate SON and RRM functionality. Interested parties are encouraged to contact ONF for additional information.
Quotes Supporting the SD-RAN Project:
“AT&T strongly supports the development of specifications and components that can help drive openness and innovation in the RAN ecosystem. The O-RAN ALLIANCE’s specifications are enabling the ecosystem, with a range of companies and organizations creating both open source and proprietary implementations that are bringing the open specifications to life. The ONF SD-RAN project, along with the O-RAN OSC, will expand the ecosystem with an nRT-RIC that can support xApps and help demonstrate their interoperability. This project will help accelerate the transition to an open RAN future.”
Andre Fuetsch, President and Chief Technology Officer, AT&T Labs
“China Mobile co-founded O-RAN in order to promote both the opening of the RAN ecosystem for multi-vendor solutions and the realization of RAN with native intelligence for performance and cost improvement. An open nRT-RIC with support for open xApps that go beyond policy-based control and SON to also enhance Radio Resource Management (RRM) will make it possible for operators to optimize resource utilization and application performance. We are excited to see the development of an open nRT-RIC and xApps in the SD-RAN project led by ONF, and expect this work to help advance the state-of-art for open and intelligent RAN.”
Dr. Chih-Lin I, Chief Scientist, Wireless Technologies, China Mobile
“China Unicom has been a long-term partner with ONF. We continue to see the benefits of the ONF’s work and the impact it has on our industry. The SD-RAN project is now applying the ONF’s proven strategy for disaggregating and creating open source implementations to the 5G RAN space in order to foster innovation and ecosystem transformation. We are excited by this work, and are committed to trialing a solution as it becomes available.”
Dr. Xiongyan Tang, Network Technology Research Institute, China Unicom
“Deutsche Telekom is a huge believer in applying disaggregation and open source principles for our next-generation networks. DT has ONF’s mobile core platform (OMEC) in production and we are taking ONF’s broadband access (SEBA/VOLTHA) platform to production towards the end of 2020. This journey has shown us the tremendous value that is created when we can build solutions based on interoperable multi-vendor components intermixed with open source components. ONF’s SD-RAN project is leveraging these same principles to help accelerate innovation in the RAN domain, and we are excited to be an active collaborator in this journey.”
Dr. Alex Jinsung Choi, SVP Strategy & Technology Innovation, Deutsche Telekom
“Connectivity is an integral part of Facebook’s focus to bring people closer together. We work closely with partners to develop programs and technologies that make connectivity more affordable and accessible. Through our collaboration with ONF on their SD-RAN project, we look forward to engaging with the community to improve connectivity experiences for many people around the world.”
Aaron Bernstein, Facebook’s Director of Connectivity Ecosystem Programs
“Google is an advocate for SDN, disaggregation and open source, and we are excited to see these principles now being applied to the RAN domain. ONF’s SD-RAN project’s ambition to create an open source RIC can help invigorate innovation across the mobile domain.”
Ankur Jain, Distinguished Engineer, Google
“Intel is an active participant of the ONF’s SD-RAN project to advance the development of open RAN implementations on high volume servers. ONF has been leading the industry with advanced open source implementations in the areas of disaggregated Mobile Core, e.g. the Open Mobile Evolved Core (OMEC), and we look forward to continuing to innovate by applying proven principles of disaggregation, open source and AI/ML to the next stepping stone in this journey – the RAN. SD-RAN will be optimized to leverage powerful performance, AI/ML, and security enhancements, which are essential for 5G and available in Intel® Xeon® Scalable Processors, network adapters and switching technologies, including Data-Plane Development Kit (DPDK) and Intel® Software Guard Extensions (Intel SGX).”
Pranav Mehta, Vice President of Systems and Software Research, Intel Labs
“NTT sees great value in transforming the RAN domain in order to foster innovation and multi-vendor interoperability. We are excited to be part of the SD-RAN ecosystem, and look forward to working with the community to develop open source components that can be intermixed with vendor proprietary elements using standard O-RAN interfaces.”
Dai Kashiwa, Evangelist, Director of NTT Communications
“Radisys is excited to be a founding member of the SD-RAN project, and we are committed to integrating our RAN software implementation (CU & DU) with O-RAN interfaces to the µONOS-RIC controller and xApps being developed by the SD-RAN project community. This effort has the potential to accelerate the adoption of O-RAN based RIC implementation and xApps, and we are committed to working with this community to advance the open RAN agenda.”
Arun Bhikshesvaran, CEO, Radisys
“As a leading manufacturer of small cell RAN equipment and an avid supporter of the open RAN movement, Sercomm is excited to collaborate with the SD-RAN community to open E2 interfaces and migrate some of our near-real-time functionalities from the RAN equipment into xApps running the μONOS-RIC controller. This is a nascent yet dynamic area full of potential, and we are committed to working with the SD-RAN ecosystem to build solutions ready for trials and deployment.”
Ben Lin, CTO and Co-Founder, Sercomm
“TIP’s OpenRAN solutions are an important element of our work to accelerate innovation across all elements of the network including Access, Transport, Core and Services. We are excited about the collaboration between our RIA subgroup and ONF’s SD-RAN project to accelerate RAN disaggregation and adoption of open interfaces. Through this collaboration we will enable the OpenRAN ecosystem to leverage the strengths of data science and AI/ML technologies to set new industry benchmarks on performance, efficiency and total cost of ownership.”
Attilio Zani, Executive Director for Telecom Infra Project (TIP)
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Comment and Analysis of Open RAN Market:
Disclaimer: Like all IEEE Techblog posts, opinions, comment and analysis are ALWAYS by the authors and do NOT EVER represent an opinion or position by IEEE or the IEEE Communications Society. This should be obvious to all in the 11 1/2 years of this author’s contribution to the IEEE Techblog and its predecessor- ComSoc Community blogs.
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Besides NOT having a liaison with either 3GPP or ITU-R, the following Open RAN issues may limit its market potential. These are NOT specific to the ONF SD-RAN project, but generic to Open RAN deployments.
- U.S. officials promoting Open RAN as a way to decrease the dominance of Huawei, the world’s biggest vendor of mobile equipment by market share and also to thwart the rise of other vendors like ZTE and China Information and Communication Technology Group (CICT) which recently won a small part of s China Mobile contract. Obviously, China’s government will fight back and NOT allow any version of Open RAN to be deployed in China (likely to be the world’s biggest 5G market by far)! That despite China Mobile and China Unicom’s expressed interest in Open RAN (see Quotes above). Remember, that the three big China carriers (China Mobile, China Telecom, China Unicom) are all state owned.
- Dual infrastructure: If a legacy wireless carrier deploys Open RAN, existing wireless infrastructure equipment (base stations, small cells, cell tower equipment, backhaul, etc) must remain in place to support its customers. Open RAN gear (with new fronthaul and backhaul) won’t have wide coverage area for many years. Therefore, current customers can’t simply be switched over from legacy wireless infrastructure to Open RAN gear. That means that a separate separate and distinct WIRELESS INFRASTRUCTURE NETWORK must be built and physically installed for Open RAN gear. Yet no one seems to talk or write about that! Why not?
- Open RAN is really only for greenfield carriers with NO EMBEDDED WIRELESS INFRASTRUCTURE. Rakuten and Dish Network are two such carriers ideally suited to Open RAN. That despite a lot of noise from AT&T and Deutsche Telekom about Open RAN trials. All the supporting quotes from legacy carriers are indicative of their interest in open source software AND hardware: to break the stranglehold the huge wireless equipment vendors have on cellular infrastructure and its relatively high costs of their proprietary network equipment and element management systems.
- Open RAN should definitely lower initial deployment costs (CAPEX), but may result in INCREASED maintenance cost (OPEX) due to the difficulty of ensuring multi-vendor interoperability, systems integration and MOST IMPORTANTLY tech support with fault detection and rapid restoration of service.
Conclusions:
Considering all of the above, one may conclude that traditional cellular infrastructure, based on vendor specific equipment and proprietary interfaces, will remain in place for many years to come. As a result, Open RAN becomes a decent market for greenfield carriers and a small market (trial or pilot networks) for legacy carriers, which become brownfield carriers after Open RAN is commercially available to provide their cellular services.
Given a smaller than commonly believed market for Open RAN, this author believes the SD-RAN project is a very good idea. That’s because it will make open source software available for Open RAN equipment, something that neither the O-RAN Alliance of TIP Open RAN project are doing. Of course, having more vendors producing Open RAN white boxes and software does add to the systems integration and tech support that only large (tier 1) telcos (like AT&T, Deutsche Telekom, NTT and cloud companies (like Google, Facebook, Microsoft) have the staff to support.
In a follow up phone conversation today, Timon Sloane told me that network operators want a fully functional and powerful RAN Intelligent Controller (RIC) to gain visibility and control over their RANs, but that has yet to be realized. To date, such controllers have been proprietary, rather than open source software.
The ONF µONOS-RIC is a key software module to realize that vision, Timon said. It is very much like a (near) real time operating system for an Open RAN. If successful, it will go a long way to promote multi-vendor interoperability for Open RAN deployments. Success and good luck ONF!
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References:
https://www.prnewswire.com/news-releases/onf-announces-new-5g-sd-ran-project-301117481.html
https://www.sdxcentral.com/articles/news/onf-picks-up-where-o-ran-alliance-falls-short/2020/08/
Telefónica and partners pursue development of 4G/5G Open RAN technology
Telefónica has announced an agreement to develop 4G and 5G Open RAN technology with partner companies Altiostar, Gigatera Communications, Intel, Supermicro and Xilinx. The Spain based pan European network operator also said it intends to launch vendor-neutral 4G and 5G Open RAN trials in UK, Germany, Spain and Brazil this year.
Telefonica said this latest collaboration comprises the necessary design and developments, integration efforts, operational procedures and testing activities required to deploy Open RAN in its networks. The Spanish network operator says this is part of its continuing efforts to lead network transformation towards 5G and that the collaboration would progress the design, development, optimisation, testing and industrialisation of Open RAN technologies across its footprint this year.
The collaboration focuses on the distributed units (DUs) and remote radio units (RRUs). The DUs implement part of the baseband radio functions using the FlexRAN software reference platform and servers based on the Intel Xeon processor. The RRUs connect through open interfaces, based on O-RAN Alliance’s fronthaul specification, and software that manages the connectivity in an open cloud RAN architecture.
Telefonica said DUs and RRUs will be designed with 5G-ready capabilities, meaning they can work in either 4G or 5G mode by means of a remote software upgrade. It will be testing the 4G and 5G hardware and software components in the lab and in the field this year, integrating an Open RAN model as part of its UNICA Next virtualization program.
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The premise is that Open RAN will be cheaper as it encourages more suppliers into the market, especially in terms of the baseband hardware where economies of scale from using standard IT can be deployed.
A cloudified open radio access architecture can also enable faster software innovation and advanced features like network automation, self-optimization of radio resources and coordination of radio access nodes.
The main goal of the trial is to define precisely the hardware and software components in 4G and 5G to guarantee seamless interoperability. This includes:
• Testing the complete solution in the lab and in the field,
• Integrating the Open RAN model as part of the end-to-end virtualisation program (UNICA Next),
• Maturing the operational model, and
• Demonstrating new services and automation capabilities as offered by the Open RAN model.
The DUs and RRUs are designed with 5G-ready capabilities and so can work in 4G or 5G mode by means of a remote software upgrade.
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The OpenRAN trial also supports exposure to third-party, multi-access edge computing (MEC) applications through open Application Programming Interfaces (APIs), and integration with the virtualisation activities in the core and transport networks. Open interfaces also mean that operators can upgrade specific parts of the network without impacting others.
Telefónica describes this openness to third-party MEC applications as “the cornerstone” to bringing added-value to the customers by enabling a variety of rich 5G services, like virtual and augmented reality, online gaming, connected car, the industrial internet of things (IoT) and more.
Edge-computing applications running in the telco cloud can benefit from the strong capillarity of the access network, so services can be tailored instantly to match the users’ needs and the status of the live network.
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Quotes:
Enrique Blanco, Telefónica’s CTIO: “Once again, Telefónica is leading the transformation towards having the best-in-class networks in our Operations with our customers as key pillars. Open RAN is a fundamental piece for that purpose while widening the ecosystem.”
“Telefónica is known for its leading-edge network and has been championing open vRAN implementations to bring greater network service agility and flexibility,” said Pierre Kahhale, Altiostar Vice President of Field Operations. “By bringing together the best-of-breed innovation, Telefonica is looking to achieve this vision into their network. We look forward to supporting this transformation of Telefonica’s network.”
Heavy Reading principal analyst Gabriel Brown: “Up to now, the open RAN action has been all about 4G. In 5G, the major integrated systems vendors [Ericsson, Huawei, Nokia, Samsung, ZTE] have been supplying their state-of-the-art systems to the market for about 18 months,” creating a big gap between what is available from them and what can be sourced from the open RAN community, says the analyst. “This move by Telefónica could help to stop that gap getting too much wider.”
“Gigatera Communications and Telefonica has been actively working to ensure state of the art technologies are being deployed. We truly value our partnership as we engage and revolutionize the industry.”, Daniel Kim, President.
“Open RAN offers a way for service providers to enhance customer experiences and enable new revenue-generating applications,” said Dan Rodriguez, vice president and general manager of Intel’s Network Platforms Group. “We are collaborating closely with Telefonica and the broader ecosystem, and also participating in initiatives like the O-RAN Alliance, to help accelerate innovation in the industry.”
“Supermicro is excited to partner with Telefónica, a premier telecommunications provider, to deliver server-class 5G solutions based on Open RAN architecture,”, Charles Liang, president and CEO of Supermicro. “Working closely with Telefónica on the deployment of 5G in the significant EMEA region, Supermicro’s history of rapid time-to-market for advanced, high-performance, resource-saving solutions is a key component for the successful implementation of next-generation applications, especially as x86 compute designs migrate to the telco market.”
“Xilinx is excited to collaborate with the disruptive mobile operator Telefónica as it leads the move to O-RAN” said Liam Madden, executive vice president and general manager, Wired and Wireless Group, Xilinx. “Our adaptable technology supports multiple standards, multiple bands and multiple sub-networks, providing Telefónica with a unique and flexible platform for radio, fronthaul, and acceleration for 4G and 5G networks.”
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References:
https://www.mobileeurope.co.uk/press-wire/telefonica-partners-to-launch-4g-and-5g-open-ran-trials
https://www.totaltele.com/505252/Telefonica-rallies-a-posse-of-Open-RAN-vendors-to-take-on-5G
https://telecominfraproject.com/openran/
https://www.lightreading.com/4g-3g-wifi/telefonica-takes-open-ran-into-5g-territory/d/d-id/758293?