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RE: fyi: An Experimental Study of Web Transport Protocols in Cellular Networks

From: <Markus.Isomaki@nokia.com>
Date: Thu, 29 Mar 2012 19:47:18 +0000
To: <ycheng@google.com>, <tobias.oberstein@tavendo.de>
CC: <ietf-http-wg@w3.org>
Message-ID: <E44893DD4E290745BB608EB23FDDB7621B1255@008-AM1MPN1-042.mgdnok.nokia.com>
Hi,

Yuchung Cheng [mailto:ycheng@google.com] wrote:
>>
>> A daily annoyance for me is the _initial_ delay it takes when surfing
>> the web, because the radio channel has been apparently put into some idle
>state.
>>
>> It takes anything from 1-5s to get into an active state again.
>Do you see that on LTE? the last paragraph of page 32 in Binoy's thesis has
>some promising numbers.
>

I'm told LTE has somewhat similar behavior. It will also try to save power whenever possible, and getting back to active from power save always takes a bit of time. But it should be better than what we have today, depending on the trade-off made in setting the parameters, of course.

Actually, in terms of RTT and bitrate LTE is quite a lot like Wi-Fi (11g at least) that we have today, so the good news is that if it is available we don't have to worry about the special case of mobile so much anymore. However, in most places HSPA and even GPRS will still prevail for many years.

Markus  
Received on Thursday, 29 March 2012 19:47:54 GMT

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