We attended the operator and vendor consortium of 5G Americas. The themes of the show were: 5G, spectrum, cell siting, Asia-Pacific operator progress. For the second time in the past couple weeks, we saw FCC Commissioner Michael O'Reilly present, and his key messages were similar both times, focusing on CBRS, C-Band and 6 GHz. In attendance from the North American service provider side were AT&T, T-Mobile US, Shaw, and Sprint (we focused on NA operators mainly in this write-up). Notable vendors included Cisco, Commscope, Ericsson, Intel, Kathrein, Mavenir, Nokia, Qualcomm, and Samsung. We would say the most important theme from the show is the surge in interest in unlicensed spectrum, both for the use of mobile operators, as well as competing carriers, as well as by enterprises both for indoor and outdoor applications. For this write-up, we are focusing primarily on comments made by some of the leading operators who attended the conference.
AT&T discussed mmWave, future 3GPP releases, 5G phones, Mobile Edge Computing and indoor cellular, mid-band spectrum strategies, 5 GHz spectrum usage, Mobile Edge Computing (MEC), StandAlone (SA), among other topics. AT&T views mmWave as just a tool in the toolkit, so to speak, and not the only spectrum that is useful in 5G. It considers mmWave to be most helpful in urban and potentially indoor settings. Representatives said that future 5G-oriented Releases 16 & 17 are expected to be software upgrades to existing hardware and won't require new equipment to incorporate these new capabilities which will include network slicing. AT&T is making a big deal about its Mobile Edge Computing (MEC) initiative. At the conference, it emphasized MEC as having two main parts: a) expansion to about 100 edge sites (mostly Central Offices) from about 20 central locations in the LTE era and initially supporting packet core, and b) Microsoft Azure services managed end-to-end by AT&t. The company also emphasized that it plans to pursue some indoor cellular opportunities, some that currently leverage 5 GHz using LAA technology, some that will leverage CBRS and some that will leverage mmWave. We get the impression from AT&T that it is open in how it pursues future mid-band spectrum strategies. Its strategy could change based on: a) the timing of the CBRS PAL licenses (currently slated for June 25, 2020), b) the potential for C-Band private auctions (potentially in the mid 2020 timeframe), c) the potential for some or all of the 6 GHz spectrum availability (where Wi-Fi 6 would co-occupy), as well as other factors. We learned that, at least in certain regions, the company is making very ample use of 5 GHz spectrum using LAA techniques. AT&T seeing its picocells (small cells) get around 100 Mbps from LAA out of a total 130 Mbps inclusive of around three other licensed spectrums. We were surprised the company makes such ample use of unlicensed spectrum where Wi-Fi currently exists. The 5 GHz experience of AT&T leads us to think that 6 GHz, which promises to offer far more spectrum that the 5 GHz swath presently available, could be very beneficial to mobile operators and their consumers, as well as the Wi-Fi industry, and its consumers. AT&T expects that by this time next year, it will be "pushing" 5G to all its customers, part as a result of handsets adopting 5G capabilities, part the result of its network seeing nationwide coverage. Of the services that AT&T operates, it is installing mainly Packet Core in its MEC systems. AT&T is also planning to run Microsoft Azure services in its MEC locations. It expects that both Packet Core and Azure will see a 10-20 ms latency reduction by being located in MEC locations. AT&T says that StandAlone (SA) is "just new software," and downplayed the significance of the upgrade from EPC/NonStandAlone (NSA) to SA.
Sprint "is all-in on 2.5 GHz mid-band deployments for 5G services." Given the company's potential merger with T-Mobile USA, we view its network-build-out choices as being somewhat limited. It has limited options because it increases its near-term value to its acquirer, T-Mobile, if it deploys 5G in 2.5 GHz. Likewise, it is doesn't implement in mmWave, this reduces overlap with T-Mobile, who is deploying there. The company reiterated that it had launched 5G in 9 markets. It is seeing its peak speeds on 5G (aided by the fact that it has simultaneously upgraded hardware to Massive MIMO) be about 3-5 times that of its 8T8R LTE systems. It currently covers 11M POPs and 2,100 square miles with 5G. Sprint also shared that it sees RFPs from customers to replace Wi-Fi with 5G, though it didn't share more about this topic. The company's experience is that in upgrading its macro base stations to Massive MIMO 64T64R capabilities, it is getting 3-4x faster throughput than its 8T8R systems, though in the field these measurements vary widely. Additionally, Sprint said that its Massive MIMO systems relative to earlier systems show "generally the same coverage," with 1-2 dB better sometimes. Sprint is exploring ORAN and vRAN but "not adopting near term."
Shaw (Canada) presented its mobile LTE and 5G efforts and plans. Shaws plans are interesting because the company has significant cable services deployed in Canada. The company said nearly all the mobile technology it has installed in the past three years are "5G-ready." It will use 5G first in 600 MHz, then in mid-band (probably in 3.5 GHz) and the last in mmWave. Shaw expects that low-band 5G handsets will be available in 2020, and, similar to what AT&T said, it expects that is when 5G mobile will start in earnest in Canada. Shaw admitted that it is behind where the US operators are in deploying 5G, but offered no apologies, as it felt it is where it needs to be from a competitive standpoint in Canada. Almost laughing, Shaw explained that it would never consider deploying mmWave along highways, and that only high-density locations would get mmWave coverage. Shaw's view that mmWave is for high-density locations was shared universally by other operators in attendance, including AT&T, Sprint and T-Mobile US.
T-Mobile US spokespersons explained that mmWave has seen some challenges, relative to initial expectations and that while it does get mmWave to operate beyond near-line-of-sight, the view of T-Mobile is that mmWave is "just part of 5G." T-Mobile expects 3GPP Release 16 to be completed in 2020, but that it will be 2021 before it deploys Release 16, which won't require "a massive hardware refresh" and which will incorporate industrial and connected vehicles features. T-Mobile views 5G as being appropriate for indoor installations because while mmWave has challenges penetrating glass and concrete, but when 5G operates in low and mid-band spectrums, the "issue goes away." By 2020, T-Mobile expects StandAlone packet core to be ready, but since its current EPC/NonStandAlone (NSA) systems are already virtualized, the upgrade to SA is "not a forklift" upgrade. T-Mobile says virtual RAN (vRAN) "will take time," and that it will "need accelerators," which we take to mean FPGA-based Network Interface Cards (NICs) or the like to allow servers to operate faster than just x86 processors will allow.
Our big takeaway from its recent global analyst meeting was that Nokia is formalizing its enterprise business. Of course, the company’s primary business, which focuses on telecom service providers, is undergoing major product updates, including towards 5G, Fixed Wireless Access and towards network slicing. We have published about these topics in other posts relating to Nokia in the past several months, having attended other Nokia events, so we focus on topics we haven’t discussed recently.
The company acknowledges that telco capex is expected to be unexciting and is redoubling efforts to gather enterprise customers. In 3Q18, Enterprise represented 5% of revenues. The company expects 8% CAGR for Enterprise Networking. Of course, the company covered many topics beyond enterprise, including its view on megatrends, the importance of spectrum instead of differentiation between 4G and 5G, residential WiFi and Fixed Wireless Access, its recent wins at major telcos, the impact of the recent re-organization, the impact of the trade war and other topics.
Enterprise market, Private cellular and WiFi. The company’s view is that private LTE will challenge WiFi for certain applications in its “strategic” enterprise markets, including for verticals such as logistics and transportation. Considering the Nokia view, we expect private LTE and WiFi will co-exist in the future. We think that Nokia can succeed with its private LTE strategy, because this is mostly a “greenfield” opportunity. Many of the cases Nokia explains it is seeing success are outdoor, not indoor, where WiFi is so popular. A number of industries are likely to adopt private LTE (mining, logistics are good examples), and later 5G, but we expect most every industry will maintain their reliance on WiFi. We keep in mind that in light of the fact that 802.11ax (which began shipping 3Q18) incorporates many more cellular-like capabilities, WiFi will have a seat at the table for some time to come even in these critical industries. Interestingly, by leveraging service provider channels, the company has plans to enter the “branch” enterprise network market, using SD-WAN as its “Trojan horse” to enter.
Megatrends. From a strategy standpoint, Nokia sees megatrends: Ubiquitous connectivity, multi-cloud, deep analytics, industrial IoT and regulatory.
Spectrum takes on new importance. On mobile radio, the company focuses on spectrum differences as much as the difference between 4G and 5G. The company’s view is all macro basestations should have mmWave. Describing its 5G ramp, Nokia’s factory capacity related to 5G infrastructure has quadrupled this most recent quarter; and the company “went to volume shipments” on its new, in-house Reefshark chips in 3Q18.
Residential WiFi and Fixed Wireless Access. The company’s new mesh WiFi will be made available at its first service provider customer’s stores in the month of November. This mesh technology is from the recent acquisition of Unium. The company’s first Fixed Wireless Access (FWA) customers have begun deployments, for both 4G cellular and WiGig (60 Ghz 802.11ad). We understand that the 4G cellular projects are largely at mobile service providers working to leverage existing investments in their mobile infrastructure, while WiGig is in demand at enterprises and traditionally fixed-line service providers. The company expects 5G FWA infrastructure will be ready to ship in 2019.
Recent wins at service providers. New wins announced €2B around this event include “frame wins” at major Chinese service providers
The impact of the recent re-organization. On the day of its recent earnings call, the company announced a planned re-organization, along with some reductions in force, to reduce spending so the company can hit its year 2020 financial targets. The importance of this re-org, from our standpoint, is that the Software division of the company will be in charge of managing several products that used to be part of the Mobile division beginning Jan 1, 2019. Products moving from Mobile to Software include IMS CSCF and TAS. We have verified that Packet Core (including EPC/4G and 5G Core) will remain in the ION (IP and Optical Networks) division, where it has been for years.
Trade war. According to Rajeev Suri, CEO of Nokia, Australia, UK, Korea, Japan, possibly Canada all may ban Chinese telecom gear. Suri expects that Nokia’s “working assumptions” are that: (a) around 20-25% Chinese market share is available for foreign vendors, and (b) potentially, ZTE will take more share in China, and that (c) foreigners (like Nokia) will still be able to play. Suri explained that Nokia hasn’t seen Chinese vendors get more aggressive in Middle East and Africa (MEA).
Mid-band spectrum shortages in the US was the main thrust of the 5G Americas sponsors. The idea is that the rest of the world has lots of mid-band spectrum available and service providers in countries that could be considered economic leaders (Japan, Korea, China, Western European countries) have plenty of available mid-band spectrum that is ideal for 5G, while the US does not. This group at 5G Americas, which includes service providers, vendors and standards bodies, is saying that US leadership in cellular infrastructure and the entire app economy that relies upon it may be at risk as 5G get deployed.
Other topics discussed: AT&T is currently out for bid on its 5GC infrastructure, and this caused some interesting posturing by the vendor attendees (like Ericsson, Nokia, Cisco, Mavenir) at this conference, with each trying to identifying their strengths. It seems the consensus is that all mobile operators in the US market are using Option 3X, an EPC anchoring system. And, the consensus seems to be that US operators will need to move to 5GC once most traffic is coming over 5G Radio (“New Radio”). Vendor selection appears an open field, once again, as 5GC has 13 different microservices, each which could theoretically be parsed out to different vendors. Operators are saying, though, that while this multi-vendor selection may lead to savings on purchasing, it will increase integration spending, so these two have to be balanced out.
Mobile Edge Computing: The consensus is that a 50 mile radius (or others are saying 100 km) is considered the ‘edge,’ or the ‘low latency’ zone. We expect, however, that the data forwarding plane (‘user plane’) will be distributed to, say, 100 locations within a territory like the US market, while the control plane will be much more centralized (perhaps as centralized as it is currently, where it might be considered to be like 1/4th the number of locations).
CBRS. The consensus is that testing will be done by mid November 2018 and Initial Commercial Deployment by 1Q19, potentially spilling into 2Q19. PAL auctions are expected by attendees to be a 2019 event, with 2020 traffic running on PAL spectrum. Commscope represented the views from a SAS standpoint for this discussion.There were discussions about the C-Band (6 Ghz) potentially using the same type of Automatic Frequency Coordination system, but the consensus is that it is too early to declare that the path forward.
We attended Mobile World Congress Americas (MWCa) in Los Angeles, CA this week, as well as the AT&T Spark event in San Francisco. Since 5G is launching first the US, these two events became the public events where significant 5G-related announcements happened.
Additionally, discussions about spectrum in the US market were very active discussions. Some points we picked up on:
At the Ericsson Media and Analyst Briefing today, Ericsson's new CEO Borje Ekholm made his first MWC presentation, and then ceded the stage to well-known T-Mobile USA (TMUS) Chief Technology Officer, Neville Ray. We learned several things that were interesting: T-Mobile's plans for 5G rollout and 2G/3G shutdown, and Ericsson's high-level view on its strengths as 5G rolls out.
Neville Ray's comments conveyed a pragmatic and agile service provider's views: