Now this is an excellent question, and the truth is with the first release of LTE, the similarities are greater than their differences, but that is where it ends. There is no more R&D on the WiMAX standard. Period. It is done. Gray and Mo's jobs at the WiMAX Forum is to eliminate their jobs. LTE on the other end is at the front end of its life cycle and just last week Nathan Stooke shared that he discovered $15B is being spent in LTE R&D PER YEAR at this point.
Second, WiMAX was mostly a dream for mass and an ecosystem that never happened. I could speak for hours on the issues why it failed and mostly none of them were technical. LTE, by contrast has already won. There is no more UMTS, no more CMDA, no more GSM, at least not as we knew them. All have collapsed into LTE. Now we even hear the (loud) rumblings of LTE rolling into 5 GHz for mobile offload, and my rantings about it as a fixed solution. On basic tech things, WiMAX caps at 10 MHz channels and limits per user rates. LTE offers 20 MHz channels and uncaps user rates. Moving forward, LTE pulls away very fast in bits/tone efficiency and adds features never even appearing on the roadmap of WiMAX (like CoMP...wait until you learn about that tomorrow...imagine your own noise turning in to something that gets multiplexed to IMPROVE your network!). Patrick Leary M 727.501.3735 [cid:image003.png@01D0568A.C86A9C50]<http://mkt2.us/TelrdNet> From: Af [mailto:af-boun...@afmug.com] On Behalf Of Bill Prince Sent: Wednesday, March 04, 2015 2:42 PM To: af@afmug.com Subject: Re: [AFMUG] New feedback (Patrick Leary) What are the significant differences between LTE and WiMax? They're both OFDM, they're both MIMO. I guess that LTE is 4x4 (I don't know)? Just wondering what the technical challenges might look like. bp <part15sbs{at}gmail{dot}com> On 3/4/2015 11:36 AM, Ken Hohhof wrote: My understanding was that it was an FPGA and software based platform. And that PW bought the design from Design Arts Networks so they could modify it, as opposed to just licensing the design. Not just adding extensions to drivers for an ASIC. I think the point Patrick is trying to make is Telrad designed their hardware from the outset to handle both WIMAX and LTE, with WIMAX coming out first, but same HW being upgradable via SW to LTE. And that now they have actually done it, which is significant, because many engineering teams in history have said “it’s a SMOP (small matter of programming)” and then had to admit defeat and change the hardware. From: Jon Auer<mailto:j...@tapodi.net> Sent: Wednesday, March 04, 2015 1:15 PM To: Animal Farm<mailto:af@afmug.com> Subject: Re: [AFMUG] New feedback (Patrick Leary) Purewave claiming SDR because they can add proprietary extensions seems like Ubiquiti claiming to be SDR because they licensed Atheros driver code so they could make AirMax. I always thought SDR meant the signal processing, anything to do with making sense of the RF, happened in software (FPGA counts!). Ettus Research's USRP is a example on TX/RX. RTL-SDR USB sticks on the RX only. E.g. If, in theory, the manufacturer can reprogram it to be a FM radio (maybe you replace the transciever/amps first though). On Wed, Mar 4, 2015 at 12:43 PM, Ken Hohhof <af...@kwisp.com<mailto:af...@kwisp.com>> wrote: Why is it not software defined? Because DAN owned the core WIMAX software? Purewave claimed to have purchased the rights to make their own mods, that was one of their claimed advantages over PMP320. Not sure what Mercury would say now. But don't they have a proprietary enhanced (but not LTE) version now? I don't see how they do that if it's not a SDR. I assume we are talking about the part of Purewave that went to Mercury, not the part that went to Redline. If you mean was it designed to do both WIMAX and LTE with just a different software load, no, they never claimed that AFAIK. -----Original Message----- From: Stefan Englhardt Sent: Wednesday, March 04, 2015 12:30 PM To: af@afmug.com<mailto:af@afmug.com> Subject: Re: [AFMUG] New feedback (Patrick Leary) PW is not SDR based So call their Distributors and tell them to change their announcements. Just google Purwave and SDR and you find some. ************************************************************************************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses. ************************************************************************************ ************************************************************************************ This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses. ************************************************************************************
