Dissapointed with EDGE smoothness

G

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I got a V551 (EDGE supported) and Cingular service with the $20 MEDIA
plan. The downloading speed is indeed faster than my T-Mobile (13KB/s
vs. 5KB/s). However, web browsing is more sluggish than T-mobile.

This is not the first time I notice such an odd thing. My SprintPCS has
much faster downloading speed as well, and significantly less latency
(300ms vs. 700-900ms), but browsing web is not as pleasant as with T-mobile.

Why?
 

marius

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Archived from groups: alt.cellular.cingular (More info?)

This may vary based upon all sorts of reasons... one major one being
the tower you are connected to, the traffic it has on itself. The
geographical location you are in, it may be imposing trouble on the
signal. The main things I'd pay attention to is the signal strength,
the modem link speed which should be a speed beginning with the number
'4' - though i forget the # exactly (Mr. Navas' website will tell you
the specifics). That's about all you really should worry about, the
signal rating, your phone's battery life could be another thing.

I've used the service too, worked well for me, the web browsing does
not respond immediately, but there is also pretty high latency through
(E)GPRS 600-800ms on average I've found, rarely under 600ms.
 
G

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Archived from groups: alt.cellular.cingular (More info?)

Marius wrote:
> This may vary based upon all sorts of reasons... one major one being
> the tower you are connected to, the traffic it has on itself. The
> geographical location you are in, it may be imposing trouble on the
> signal. The main things I'd pay attention to is the signal strength,
> the modem link speed which should be a speed beginning with the number
> '4' - though i forget the # exactly (Mr. Navas' website will tell you
> the specifics). That's about all you really should worry about, the
> signal rating, your phone's battery life could be another thing.
>
> I've used the service too, worked well for me, the web browsing does
> not respond immediately, but there is also pretty high latency through
> (E)GPRS 600-800ms on average I've found, rarely under 600ms.
>
The speed is indeed good, just it always takes much longer to open a web
page than using a 56k landline modem. Very sluggish. As I said, Sprint
Vision has exactly the same behavior. T-mobile is much more pleasant in
real life.
 
G

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Archived from groups: alt.cellular.cingular (More info?)

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <EFLtd.56413$QJ3.14947@newssvr21.news.prodigy.com> on Wed, 08 Dec 2004
22:57:40 GMT, John Smith <user@example.net> wrote:

>Marius wrote:
>> This may vary based upon all sorts of reasons... one major one being
>> the tower you are connected to, the traffic it has on itself. The
>> geographical location you are in, it may be imposing trouble on the
>> signal. The main things I'd pay attention to is the signal strength,
>> the modem link speed which should be a speed beginning with the number
>> '4' - though i forget the # exactly (Mr. Navas' website will tell you
>> the specifics). That's about all you really should worry about, the
>> signal rating, your phone's battery life could be another thing.
>>
>> I've used the service too, worked well for me, the web browsing does
>> not respond immediately, but there is also pretty high latency through
>> (E)GPRS 600-800ms on average I've found, rarely under 600ms.
>>
>The speed is indeed good, just it always takes much longer to open a web
>page than using a 56k landline modem. Very sluggish. As I said, Sprint
>Vision has exactly the same behavior. T-mobile is much more pleasant in
>real life.

T-Mobile has the same GPRS latency as Cingular.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>
 
G

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Archived from groups: alt.cellular.cingular (More info?)

>
> T-Mobile has the same GPRS latency as Cingular.
>

I don't think it is latency. Must be the gateway or proxy server.
Whenever you send a network request, it goes through the gateway/proxy.
 
G

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Archived from groups: alt.cellular.cingular (More info?)

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <tL7ud.31352$zx1.18470@newssvr13.news.prodigy.com> on Fri, 10 Dec 2004
02:22:17 GMT, John Smith <user@example.net> wrote:

>> T-Mobile has the same GPRS latency as Cingular.
>
>I don't think it is latency. Must be the gateway or proxy server.
>Whenever you send a network request, it goes through the gateway/proxy.

Proxy would tend to make things faster, not slower.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>
 
G

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Guest
Archived from groups: alt.cellular.cingular (More info?)

If all of us go to the same proxy server and the server do not have
enough resource to handle all the requests, then it'll be worse than
without. Otherwise proxy server does save DNS requests and help the latency.

Sprint's Vision has very low latency (only 300-400 ms), but web browsing
is still sluggish. The cause, I think, is that Vision server
re-compresses each and every web page, which saves network load but
could result into slower browsing speed if the server is overloaded.

>
> Proxy would tend to make things faster, not slower.
>
 
G

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Guest
Archived from groups: alt.cellular.cingular (More info?)

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <b5pud.40956$6q2.37146@newssvr14.news.prodigy.com> on Fri, 10 Dec 2004
22:05:59 GMT, John Smith <user@example.net> wrote:

>> Proxy would tend to make things faster, not slower.

>If all of us go to the same proxy server and the server do not have
>enough resource to handle all the requests, then it'll be worse than
>without.

Not likely -- a proxy normally responds faster than a remote server.

>Otherwise proxy server does save DNS requests and help the latency.

More than that -- a good proxy prefetches requests over a fat pipe, and is
thus ready to respond to subsequent requests faster than a remote server.

>Sprint's Vision has very low latency (only 300-400 ms),

You really think that's "very low" latency? LOL!

>but web browsing
>is still sluggish. The cause, I think, is that Vision server
>re-compresses each and every web page, which saves network load but
>could result into slower browsing speed if the server is overloaded.

I doubt it. Cingular's similar feature ("Data Acceleration") improves the
fetching of web pages.

A more likely cause is the browser. Internet Explorer does a poor job over
slow and/or high latency links. Mozilla Firefox is much better in this and
other areas. Highly recommended. <http://www.mozilla.org/products/firefox/>

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>
 
G

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Archived from groups: alt.cellular.cingular (More info?)

Yes, 300-400ms is very low latency, the same as a landline modem, much
lower than the 800-900ms of GPRS/EDAGE.

Anyway, I found BT phones are slow modems. I changed my SE T608 phone
with BT to my old Treo 300 with USB, BANG, everything is fine again and
super fast. I returned my V551 and Cingular service today.

BTW, BT port is fast more than enough to support EDGE and CDMA2000
speed, just these tiny BT phones seem cannot handle well enough both BT
and modem at the same time to maintain a constant overall high speed. At
least my T608 is like this.

I'm going to try the new Treo 650 and see if it's a fast BT modem.
 
G

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Archived from groups: alt.cellular.cingular (More info?)

[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]

In <BKIvd.59766$QJ3.51767@newssvr21.news.prodigy.com> on Tue, 14 Dec 2004
21:16:17 GMT, John Smith <user@example.net> wrote:

>Yes, 300-400ms is very low latency, the same as a landline modem, much
>lower than the 800-900ms of GPRS/EDAGE.

* I personally consider 300-400ms to be high latency.
* Sprint Vision is more like 300-500 ms (with typical network loading)
* Latency of a good landline (wireline) modem is about 110 ms, much less than
any current cellular technology.
* EGPRS(EDGE) is much better than your numbers; e.g.,

Packets: Sent = 20, Received = 20, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 384ms, Maximum = 642ms, Average = 532ms

* I personally don't find the latency difference between Sprint Vision and
EGPRS(EDGE) to be terribly significant -- both are high.

>Anyway, I found BT phones are slow modems.

* Bluetooth doesn't have a material effect on data throughput or latency.
* Some phones are faster at data than others.

>I changed my SE T608 phone
>with BT to my old Treo 300 with USB, BANG, everything is fine again and
>super fast.

Not terribly surprising -- the T608 is only 1xRTT, considerably slower than
EGPRS(EDGE).

>I returned my V551 and Cingular service today.

The EDGE-capable V551 is can achieve much higher speed than the T608.

>BTW, BT port is fast more than enough to support EDGE and CDMA2000
>speed, just these tiny BT phones seem cannot handle well enough both BT
>and modem at the same time to maintain a constant overall high speed.

That's not true.

>At
>least my T608 is like this.

Something else was going on.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>