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.

• Verizon.  Will launch 5G Fixed Wireless Access (FWA) on October 1 in four markets: Houston, Indianapolis, Los Angeles and Sacramento.
• AT&T.  The company reiterated its own 5G plans (mobile 5G by year-end 2018 in cities such as Atlanta, Charlotte, Dallas, Indianapolis, Oklahoma City, Raleigh, Waco, Houston, Jacksonville, Lousville, New Orleans and San Antonia), plus it made some announcements like that it is beginning 5G-ready CBRS equipment testing (using Samsung CBRS equipment and CommScope as SAS provider).  Also, at the Spark event on Monday, the company announced three strategic telecom equipment suppliers, Ericsson, Nokia and Samsung. 
• T-Mobile.  Announced that it had completed a Cisco vEPC system (upgradeable to 5G Core) carrying traffic for 70M users that was from Cisco.  It also announced that it signed a $3.5B 5G agreement with Ericsson.  This is in addition to the July 30 announcement made earlier with Nokia for $3.5B, as well.  Generally, the company has set expectations as recently as September 10 that it will provide nationwide 5G by the year 2020.
• Sprint.  Announced that it had demonstrated a 5G NR connection of Massive MIMO with Nokia equipment.

Additionally, discussions about spectrum in the US market were very active discussions.  Some points we picked up on:

• No new mid-band auctions will occur in the US market for another 2-3 years, so this means that new capacity is going to come from LAA (just announced on the iPhone Xs this week, as well) and from CBRS (discussed above).
• The "who has the fastest 5G throughput" battle will be won at the millimeter wave.  In other words, using millimeter was, speeds as high as 10 Gbps are possible, but with mid-band (1-6 Ghz), where LTE is currently deployed, cannot go much over 2 Gbps.  So, to beat the Ookla Speed Test, the mobile operators who deploy mmWave early will get a leg up.  However, in order to deploy mmWave, these have to be small-cells that are within 100 meters of users.  Since it is so difficult to get real-estate rights and backhaul for small cells, this is going to be a big challenge.  Nevertheless, this is how the battle will be won.
• T-Mobile's 600 Mhz rollout is now in 1,250 cities.  The company will eventually enable 600 Mhz 5G.  600 Mhz should dramatically improve T-Mobile coverage because it is low-band spectrum.

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:

• 2/3rds of all voice minutes are now on Voice over LTE (VoLTE).  Ray challenged anyone in the audience to find another telecom service provider with a greater percentage of minutes on VoLTE.
• 93% of all wireless data is transmitted on LTE
• Plans to shut down 2G and/or 3G when 5G rolls out, elaborating that the company has decomissioned the 'lion's share' of 2G spectrum utilization.  However, Ray says it has found significant customer interest in its 2G (GSM) network for connecting to Internet of Things (IoT) devices fitted with GSM modules.  In fact, there is a debate at TMUS as to whether to shut down the 3G network before the 2G network.  TMUS claims it has taken share from AT&T because its competitor shut down its 2G network and IoT customers in the US market have signed up with TMUS.
• The company echoed views it has shared with the media in recent months - that it isn't so committed to virtualizing its network at this point.  The CTO explained that it has a sufficiently modern network core that it isn't necessary to upgrade to a Network Functions Virtualization (NFV) infrastructure - at least until it rolls out 5G - and he put the conversion-to-NFV timeframe at 3 to 4 years.
• TMUS is not thrilled with the prospects for 5G fixed wireless, the kind that replaces wired broadband.  He said that if this is all 5G does for the industry, we may as well all go home.
• The company has deployed only 1,000 small cells to date.  It plans as many as 5,000 to 6,000 by the end of 2017.  Part of this rollout is using unlicensed spectrum, and it will roll out LTE-U and LAA.

Ericsson CEO Borje Ekholm positioned Ericsson's view on 5G:

• 5G will be based on the cloud, and potentially we could see entire 5G networks running entirely on the cloud
• Ericsson is well positioned in 5G due to its exposure to virtualization, security and its strong position in OSS/BSS.