The most interesting thing on the exhibit floor at the Mobile World Congress trade show in Los Angeles might have been the dullest. Because it was so dull.
Samsung introduced a 28 GHz 5G small cell unit that packs antennas and electronics into a small, anonymous box that can be strapped to, say, a streetlight pole. According to a Samsung rep at the show, Verizon has already signed up to buy it.
As small cell facilities go, the box is tiny – two-thirds of a cubic foot, or about the size and shape of a toolbox. Something like half the volume is taken up by cooling fins, which are shrouded from view on three sides. The cellular antennas and radio gear are packed into the remaining space, with only a silver dollar sized GPS antenna poking out of the top. Samsung’s reps said installing it is as easy as bolting it to a pole and plugging in electric and fiber optic cables.
Keep in mind, though, what it is and what it isn’t.
It is a high bandwidth, millimeter wave cell site that meets 5G specs in a small package (Samsung claims it can deliver broadband at 10 gigabits per second). Presuming it works as advertised, it’s a solution for a particular set of circumstances.
It isn’t a revolution in small cell engineering or solution that’ll work in all, or even most, circumstances. The frequency band it’s designed for – 28 MHz – is just one of many that mobile carriers use. Most are lower frequency bands that require bigger antennas – millimeter waves use millimeter antennas, which makes it easier to cram everything into one box. Different bands and applications can also have different power requirements. A small cell site designed for another band will probably look different. Particularly if it’s intended to serve 4G as well as 5G customers, which this Samsung unit isn’t.
Even so, Samsung’s fully integrated small cell unit is an important benchmark for the industry. Making small cells smaller and duller will go a long way toward overcoming aesthetic objections and meeting mechanical design standards. The more small cells look like the photo above, and the less they look like the photo below, the easier everyone’s job will be.