<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">Am 27.12.2012 22:48, schrieb
<a class="moz-txt-link-abbreviated" href="mailto:dpreed@reed.com">dpreed@reed.com</a>:<br>
</div>
<blockquote cite="mid:1356644915.637229905@apps.rackspace.com"
type="cite">
<meta http-equiv="Context-Type" content="text/html; charset=UTF-8">
<p>Some LTE technical architecture folks have said to me,
informally, that LTE (unlike GPRS) was designed from the ground
up for TCP/IP, whereas GPRS was not really intended for TCP/IP.</p>
<p>Â </p>
<p>I don't know what that means, but perhaps one ought to ignore
GPRS's delay classes.</p>
<br>
</blockquote>
<br>
O.k., in LTE, we don't talk about delay classes any longer ;-) We
now call it "terminal classes" ;-)<br>
<br>
What I've read so far, LTE is often used as a DSL replacement, i.e.
for STATIONARY users!!!!<br>
<br>
When it comes to mobility, LTE inevitably inherits essential
properties of UMTS and the like. E.g. Rayleigh-fading. And therefore
consequently some kind of opportunistic scheduling, which is
necessary to make wireless networks affordable for the users.<br>
<br>
It may be possible that the problems are not that prominent as LTE
is still yet to achieve huge numbers of customers. However, when LTE
has fully reached the market, the problems are likely to be the same
as in other mobile networks.<br>
<br>
(Not that political correctly spoken: Whoever said that LTE is
designed for TCP, I don't buy this. The contrary is the case. The
broader the range of latencies will be, the less stationary delivery
times will become. As one particular problem.)<br>
<br>
<br>
<pre class="moz-signature" cols="72">--
------------------------------------------------------------------
Detlef Bosau
GalileistraÃe 30
70565 Stuttgart Tel.: +49 711 5208031
mobile: +49 172 6819937
skype: detlef.bosau
ICQ: 566129673
<a class="moz-txt-link-abbreviated" href="mailto:detlef.bosau@web.de">detlef.bosau@web.de</a> <a class="moz-txt-link-freetext" href="http://www.detlef-bosau.de">http://www.detlef-bosau.de</a>
------------------------------------------------------------------
The nonsense that passes for knowledge around wireless networking,
even taught by "professors of networking" is appalling. It's the
blind leading the blind. (D.P. Reed, 2012/12/25)
------------------------------------------------------------------
</pre>
</body>
</html>