Cool find! Been there since 2018 according to Cellmapper. The only other time I've seen them leave up a temp site like this for a long period of time was when a nearby site is temporarily inoperable like the one in Red Hook Houses. That doesn't seem to be the case here and it's pretty much a GMO site at this point.
My best guess is that T-Mobile wanted to put a site there to fill in coverage but because it's on LGA's grounds getting the actual permission to do so is extremely complex so they worked out a deal with the Port Authority to put up a COW in the meantime.
Would this be a T-Mobile COW outside LGA Terminal A? eNB 49106 seems to line up to its position, plus the arm for the trailer to hook onto a truck says T-Mobile. Here is the NYC streetcar view the image was pulled from.
For all the years I have been monitoring the DAS, I have never gotten -55 or better, even after passing by every antenna in a station that is deep enough to have 0 outside macros reaching in. The SNR is still 20+, so its probably designed that way on purpose.
From a few days back: https://www.fiercewireless.com/wireless/deutsche-telekom-aims-50-t-mobile-ownership-2024
DT Chief Executive Timotheus Hoettgas said buying the majority stake in T-Mobile US was the group's most important strategic project at present, according to Reuters. He said that stake should top 50% much sooner than its previous projection of 2024.
Earlier this year, DT paid $2.4 billion to SoftBank Group to increase its stake in T-Mobile US to 48.4%.
5.9GHz finally approved by a court: https://www.fiercewireless.com/tech/court-upholds-fccs-decision-59-ghz. This should be added to 5GHz wi-fi. considering wi-fi 7 will be included in the qualcomm x70 and related SOCs, doubtful they will be able to add this now, unless designed to be added later. 5.9GHz will given us a third 160MHz unique carrier iirc, a major improvement.