4 ms·

Skimming through the article this looks like better signal processing coupled with the usual sensor fusion (from accelerometers and other sensors). My knowledg

by airesQ 11y ago

Skimming through the article this looks like better signal processing coupled with the usual sensor fusion (from accelerometers and other sensors). My knowledge of location systems only extends so far, but from what I know 3G, 4G and WiFi have not introduced anything particularly remarkable here. Wifi APs and various BSs are used as beacons (a la Skyhook), but their role doesn't extend much beyond that. Anyway, there is still hope that 5G or some IEEE standard will make a difference here. They could perhaps provide something akin to a ground satellites, maybe at a very low frequency (to get past obstacles), or/and perhaps using UWB (helps with multipath, TOA determination). And then maybe we would have zeroish-time-to-fix, indoor-location on cheap, low-power devices.

mojoB 11y ago
Do you have any references for the ground-satellite abilities for 5G? I couldn't turn up anything on Google. Locata [1] has been in the high-end space for a while. I had heard of a lower-end approach too, though the name escapes me, and they were only getting ~50cm. Edit: The other one I was thinking of was decaWave [2], they claim 20cm in 2 dimensions. [1] http://www.locata.com/technology/locata-tech-explained/ http://www.locata.com/technology/locata-tech-explained/ [2] http://www.decawave.com/technology http://www.decawave.com/technology
- airesQ 11y ago
  I would like to see some location improvements in 5G, but I've no idea on whether or not they will be there. (The little I've heard on 5G has been from non-technical types, always as a buzzword). From my limited knowledge it would nice if they provided a signal somewhat similar to GPS. Perhaps at a low frequency, as to avoid reflections and attenuation (or just a UWB signal). The main advantage of having this together with 5G would be deployment, we would piggyback a location system on top of 5G. Back to your comment, I did know about DecaWave, but not Locata. Locata looks interesting, it really does seem like GPS brought to earth. One good thing about GPS type systems is how well they scale. The satellites just provide the signal, they don't even have to know how many receivers are out there. (Also good from a privacy standpoint.) DecaWave system is loosely based on IEEE 802.15.4a, which uses UWB. I think it does two-way ranging (basically a very precise ping). And since they use UWB, their system seems to be quite resilient to multipath.

by airesQ 11y ago

mojoB 11y ago

Do you have any references for the ground-satellite abilities for 5G? I couldn't turn up anything on Google. Locata [1] has been in the high-end space for a while. I had heard of a lower-end approach too, though the name escapes me, and they were only getting ~50cm. Edit: The other one I was thinking of was decaWave [2], they claim 20cm in 2 dimensions. [1] http://www.locata.com/technology/locata-tech-explained/ http://www.locata.com/technology/locata-tech-explained/ [2] http://www.decawave.com/technology http://www.decawave.com/technology

airesQ 11y ago
I would like to see some location improvements in 5G, but I've no idea on whether or not they will be there. (The little I've heard on 5G has been from non-technical types, always as a buzzword). From my limited knowledge it would nice if they provided a signal somewhat similar to GPS. Perhaps at a low frequency, as to avoid reflections and attenuation (or just a UWB signal). The main advantage of having this together with 5G would be deployment, we would piggyback a location system on top of 5G. Back to your comment, I did know about DecaWave, but not Locata. Locata looks interesting, it really does seem like GPS brought to earth. One good thing about GPS type systems is how well they scale. The satellites just provide the signal, they don't even have to know how many receivers are out there. (Also good from a privacy standpoint.) DecaWave system is loosely based on IEEE 802.15.4a, which uses UWB. I think it does two-way ranging (basically a very precise ping). And since they use UWB, their system seems to be quite resilient to multipath.