I got an interesting call this week from a major healthcare system (not to be identified). Question was...are their Quality of Service Requirements or latency issues for WMTS? Well, no. However I probed further and found out what the real issue was.
Apparently one of the installed (not to be named..but lets' say real large companies) WMTS in 608-614Mhz was actually having delays of up to 4-8 seconds from the transmitter to central station waveform display. (Very clinically unacceptable), every few hours. My read is it probably had to do with "drop-out". (The companies (manufacturing this)...apparently threw up their hands!)
So how do you trouble shoot this?...send people out and use a spectrum analyzer and then step by step look through all aspects of the coaxial antenna system. How do I know this...because been there and done that years ago. The point of this, (if the companies..which we know about), actually used WiFi; it would at least be a different story. You could remotely troubleshoot, but also ensure enterprise grade Quality of Service...and the IEEE standards.
Now moving on the issue of WMTS on DAS. Well looking at my crystal ball and what I know, the big companies that we know all have skunk work projects to figure out probably to exchange the 608-614Mhz and 1.4GHz radio with WLAN (probably 802.11n..as silicon gets smaller and more efficient. So this is where it gets interesting. One company is promoting how great it is to combine WMTS with a DAS, (at 1.4GHz). Another quote is obtained from a competitive WMTS company (at 1.4GHz). Discrete WMTS at 1.4GHz Combining it with a DAS cost $900,000.00 (more)..yes more. Oh yes how would you like an antenna element spaced every 15 feet down the hallway!
