Karl Bode discovered that AT&T doesn't think 5G matters, at least to consumers. In return for eliminating regulations, the US telcos nominally provide all the information consumers need to make a good choice and the FCC needs to make sensible regulation. But as consumer groups and Congressmen alike demand accurate broadband maps, AT&T is resisting bitterly.

Require mobile providers to report on their broadband networks by speed capability rather than technology. The record reflects that speed is more important to consumers than the air interface used to provide it. AT&T therefore proposes that the Commission require mobile providers to report their mobile voice and broadband coverage with coverage maps depicting two service levels: (1) voice and broadband service below 5 Mbps download and 1 Mbps upload, and (2) voice and broadband service at or above 5 Mbps download and 1 Mbps upload.

Since the NR air interface is AT&T's definition of 5G, if that doesn't matter, neither does 5G. That's true in one sense - good 4G LTE matches the performance of 5G in low and mid-bands.

In addition, the AT&T comments were inappropriate. So I filed a rebuttal:

I am submitting these comments as an individual with experience with broadband since 1999. I have written a book on DSL and am wrapping up a book on 5G. I have written over 2,000 news reports on telecom, including hundreds on wireless. At the invitation of the FCC OET, I presented at two workshops for the Broadband Plan. My work has been cited by The New York Times, The Washington Post, The Wall Street Journal, and many other publications. Yadda, yadda, yadda. 

I decided to submit because AT&T lied in its comment https://ecfsapi.fcc.gov/file/1007604908368/ATT%20DODC%20Reply.pdf

"THERE IS BROAD AGREEMENT THAT IT IS NOT YET TIME TO REQUIRE REPORTING ON 5G COVERAGE As AT&T observed in its comments, it would be premature for the Commission to require wireless providers to submit coverage maps for 5G service at this time.17 There is universal support in the comments for this position."

 I did not find any support for this position in the first four comments from those primarily concerned with the public interest, something that would be obvious to AT&T's distinguished if they had bothered to read the filings. They did not address the issue of 5G coverage reporting at all, much less supported the AT&T position.   

In addition, this is total b______ 

"AT&T pointed out, requiring 5G coverage maps in this early stage of 5G deployment could reveal sensitive information about cell site locations."

AT&T's competitors can easily find out the locations of cell sites through several commercial services or by drive tests in the few areas not commercially surveyed. The AT&T lawyers certainly know this and are insulting the commission by making this obviously ridiculous claim. T-Mobile provides public maps of where it has 5G. In France and England, it is standard practice for all carriers to report their tower locations. 

In addition, it is absurd to think that information should be hidden from the FCC because it might reveal

"customer locations, in cases where 5G is being deployed in high-band spectrum for specific enterprise customers." 

Fewer than 1 in 1,000 customers in Korea, the world leader in 5G, fit the description of "high-band spectrum for specific enterprise customers." I strongly doubt the figure will be higher in the US, but cannot be definitive because AT&T and peers hide even basic deployment and subscriber information.

Only a limited number of very large enterprise customers will buy dedicated 5G networks. Competitors almost surely will be aware of such large prospective customers and can confirm with drive tests.


I would like to confirm the CPUC contention that propagation maps are highly inaccurate. Only actual drive tests can be considered accurate. I consulted on a wireless deployment across most of Vermont, including working with the network designers and propagation maps from one of the world's largest vendors of 5G radios. Everyone knew the tools were very limited. When the network was actually built, the reality was far short of the claims of the model.

AT&T itself does not rely on propagation maps but rather spends millions on field tests. If it didn't do that, it would not have good information on coverage.

It is highly unlikely that AT&T does not know its own network coverage. 


WC 19-195
WC 11-10