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Worries Mount Over Upcoming LTE-U Deployments Hurting Wi-Fi
alphadogg writes: LTE-U is a technology developed by Qualcomm that lets a service provider broadcast and receive signals over unlicensed spectrum, which is usable by anybody – specifically, in this case, the spectrum used by Wi-Fi networks in both businesses and homes. By opening up this new spectrum, major U.S. wireless carriers hope to ease the load on the licensed frequencies they control and help their services keep up with demand. Unsurprisingly, several outside experiments that pitted standard LTE technology or 'simulated LTE-U' technology, in the case of one in-depth Google study, against Wi-Fi transmitters on the same frequencies found that LTE drastically reduced the throughput on the Wi-Fi connection.
Also just wait for the Mexico towers near the board to up there power as they rake in the roaming that goes as high as $20 a meg.
I doubt it. Use of electromagnetic spectrum near borders is regulated by treaties. Also, the unlicensed use of WiFi frequencies comes with a condition: you must keep your power output below a certain level.
If it weren't for deadlines, nothing would be late.
LTE-U doesn't use the 2.4GHz spectrum. It only uses a fraction of the channels in the 5GHz UNII band (only UNII-1 and UNII-3...no UNII-2). That means that LTE-U actually leaves the vast majority of spectrum in the 2.4GHz and 5GHz unlicensed bands exclusively for use by Wi-Fi and other unlicensed technologies.
LTE-U is not transmitted by big cell towers. It's a "small cell" technology - i.e. it is transmitted from small boxes that are no bigger than a Wi-Fi access point, and transmit radio waves at the same output power as Wi-Fi access points.
To emphasize what the previous poster stated, it is nice to get a good visual of how our spectrum is diced up and see who has the big chunks...
I present "The US Frequency Allocation Table -> https://upload.wikimedia.org/w...
"A 'person' is smart. 'People' are dumb, panicky animals and you know that."
Except that the UNII-2 and other proposed 5 GHz wifi bands overlap with radar, meaning that equipment has to implement DFS and the radar gets priority. Having LTE in -1 and -3 means that all 5 GHz bands now have to deal with non-wifi interferers.