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Re: Ericsson Fires LTE over WiFi Salvo
Bert22306   1/9/2015 4:05:51 PM
if your take is that LTE-U is simply a ploy against WiFi usage in the unlicensed band, do you (or anyone else) think regulators should promptly step in and kill this initiatve in the bud?

Maybe kill the initiative outright is not the answer, but regulators certainly have a responsibility to set down rules about how unlicensed bands are to be used. And those rules would go a long way to make the initiative unattractive.

It's very simple, really. The unlicensed spectrum should not be allowed to be usurped by users of the licensed spectrum, as an adjunct to what they are already doing (and obtaining revenue from) on the licensed spectrum. So unless these incumbent licensed spectrum users meet certain criteria, they should not be allowed on the unlicensed spectrum.

Now, let's say the cellco makes use of the unlicensed spectrum free of capacity charges, duplicating the way WiFi is used, and does this to avoid having to install WiFi transceivers in its smartphones, well, MAYBE that might be allowed.

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Re: What about charges?
mux2468   1/9/2015 12:59:37 PM
Any technological additions in the mobile world will be adopted only if the operators benefit. Consumers are at the next level of priority :-).

As mentioned in the article, the only benefit for the consumers is for them to be operating at a higher bandwidth consumption it seems. 

I am skeptical too if this will necessarily grab consumer's interest. Why would consumers be interested in paying more, I dont get it still.

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Ericsson Fires LTE over WiFi Salvo
jzws   1/9/2015 11:51:42 AM
So, @Denis.Giri, if your take is that LTE-U is simply a ploy against WiFi usage in the unlicensed band, do you (or anyone else) think regulators should promptly step in and kill this initiatve in the bud?

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Re: What about charges?
Denis.Giri   1/9/2015 3:49:00 AM
As it would not be an open Wifi hotspot, but a LTE-U communication (on an unlicensed band, but using your mobile operator's base stations), I expect it would be charged.

Technology and standards developped by corporations rarely benefits the consumer: it benefits the shareholders.


As LTE-U is an obvious move against Wifi and its "free-to-use" unlicensed band, I wonder how the mobile operators would react if we made all mobile operator bands unlicensed. If the protocols can really attain "fair sharing" of the band, let's unlincense all mobile operator licensed bands!!! If their claims of fair sharing & quality of service are true, it shouldn't bother them.

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What about charges?
Bert22306   1/8/2015 4:10:46 PM
I'm not clear how this works. The skeptic in me says that this is merely a ploy for the cellcos to not lose out on revenues.

As is the case now with many smartphones, when they detect WiFi, all of the data transfer is handed off to WiFi. This does not count to your monthly limit for data on the 3G or 4G service. If this unlicensed use of spectrum for 4G is going to supplement the licensed spectrum, how will the customer benefit, as compared with WiFi handoff?

The comment about all boats rising is fair enough, but that already holds true with using WiFi, right?

rick merritt
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Jumping ahead of te pack
rick merritt   1/8/2015 1:16:48 PM
I'm guessing Ericsson believes its rivals will make similar moves next month at Mobile World Congress where it will say, "Yeah, we showed that at CES last month."

As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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