@Ann - yes, used to do antenna selection and radio coverage prediction (BTW, it's a job of a systems engineer... and has nothing to do with testing. if you select antennas at the time of deployment, it's too late - something is really wrong in your process)
Thanks a lot. All these five sessions were very informative. They made me realize how little I know. I may, now, understand wireless test methods and techniques...
chipset vendors will typically focus on R&D and production test. however, they are also responsible for roaming funcitonality and other system related functions that would be part of QA test.
So who gets invloved in the deployment tests. Is it the carrier that does all the deployment testing, or do they also bring in the device (cellphone) maker and/or the modem chip vendor too ?
@ricardo.medeiros: different security wrappers (encryption schemes) will demand different overyead. WPA is a more complex algorithm, and thus will have implications on packat loss. WE{ authentication is retransmitted "in the clear" while WPA hides it. So, I would say, WAP's overhead is greater.
So for LTE, if you want to deply your radio internationally, is there a small sweet spot of frequencies that would cover every where, our would you have to create a different flavour of the hardware (FEM) to cover the different areas (e.g one for north america, one for asia, one for africa, ...) ?
It's hard to explain signal level difference between WEP and WPA2 since encryption is the same for both and data rates should have been the same... could be some anomaly in the equipment?
Thanks much Fanny for your wonderful coverage of wireless testing. I'm very happy to have attended this course. Hope you get some trinkets for your effort :-).
Dear Fanny, I've experienced different signal quality in some differents point far from an AP, just changing the security function from WPA2 to WEP. With WEP I got much better signal quality (level) then with WPA2. What is the explaination for that. Thanks. Ricardo.
@octoScope: another fantastic and informative week. Thank you so much, not only for your thorough preparation, deep subject knowledge, and in-the-trenches practical insights, but especially for your willingness to share it all so freely with this audience. Great job! Wow!
Thank you Fanny for providing an interesting and usefull week. The test requirements and techniques look like they apply to applications other than wireless.
If you haven't told us yet, please let us know 1) Are you involved in wireless installation testing? If yes, what radio technology and applications?, 2) are you using licensed or unlicensed bands for your wireless network?, 3) are you involved with antenna selection and radio coverage testing?
If you haven't told us yet, please let us know if you're involved in wireless installation testing and if yes, what radio technology and applications you're working with.
Ann - Each day this week your audio has been very faint while Fanny's is loud and clear. I've seen several other attendees note the same - so I'm not the only one with a problem. Is there anything you can do on your end to increase your volume?
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