(keitai-l) Re: i-Mode protocol stack evolution?

At 08:40 2002-02-08, you wrote:

>Thanks Curtis, I still have some open issues:
>
>- you said that both WAP2.0 's and new i-Mode protocol stack are both the
>same, but WAP2.0 integrates TLS as the security layer and i-Mode is SSL?

TLS 1.0 is essentially based on SSL 3, so there is not a big difference.

>- what about the Markup Language, is it still cHTML or does i-Mode uses=
 some
>kind of XHTMLMP with 'extensions for backward compatibility with cHTML'?

AFAIK, DoCoMo have not been fully clear on this. It is still i-mode=20
compatible HTML 3.0 (derived from cHTML) that is the valid format, with=20
some few extensions for FOMA for user agent and utn.

http://www.nttdocomo.co.jp/english/p_s/i/tag/index.html

Things have been said about XHTML Basic and WAP 2.0, but I haven't been=20
able to make something clear about of it. Maybe someone else? The browser=20
in the latest versions for FOMA should already support XHTML Basic=
 (Curtis?).

>- does Java for i-Mode applications make any additional requirement to a
>gateway which already supports midlets downloading for WAP 2.0 phones?

No. But you wouldn't need a gateway. Downloads are done directly from a=20
third party content server.

See http://www.nttdocomo.co.jp/english/p_s/i/java/index.html and further=
 links.

/gustaf


>Thanks in advance,
>
>
>
> > ----- Original Message -----
> > From: Curtis Yarvin <curtis@access-us-inc.com>
> > To: <dgp245@tid.es>
> > Sent: Thursday, February 07, 2002 7:36 PM
> > Subject: RE: (keitai-l) i-Mode protocol stack evolution?
> >
> >
> >
> > Diego,
> >
> > Yes, it is true that iMode and WAP 2.0 use the same protocol stack
> > specifications.
> >
> > HTTP means HTTP - the "Wireless Profiled HTTP" spec is just a list of
> > common HTTP features that clients and proxies must support.  I think you
> > mean HTTP 1.1, though.  Yes, cookie support is included, see the WAP 2.0
> > HTTP State Management spec.
> >
> > Please let me know if there's any other way I / Access can help you with
> > your investigation.  (As you may know, we offer iMode / WAP 2.0
> > browsers, as well as a subscription server (PCSS) to implement the
> > business model side of iMode).
> >
> > Gracias y buenas noches,
> > Curtis
> >
> > Curtis Yarvin - Director of Technology
> > ACCESS Systems America: Embedded Internet Software Solutions
> > curtis@access-us-inc.com / GSM US: 415 533 5743
> >
> >
> >
> >
> > -----Original Message-----
> > From: keitai-l-bounce@appelsiini.net
> > [mailto:keitai-l-bounce@appelsiini.net] On Behalf Of Diego Gallego P=E9r=
ez
> > Sent: Thursday, February 07, 2002 2:34 AM
> > To: keitai-l@appelsiini.net
> > Subject: (keitai-l) i-Mode protocol stack evolution?
> >
> >
> >
> > Hi all,
> >
> > This is a mail from a new to i-Mode spanish wireless engineer, I'm
> > trying to know the basics of i-Mode, it's evolution and requirements for
> > a possible support in European operators, it's difficult to find
> > recent-non-japanese-language documentation different to the 'i-Mode
> > service guideline' from NttDoCoMo's web site and some Faq's & Forums.
> > I'd like to fix some facts about i-Mode:
> >
> > I've read that i-Mode devices protocol stack consists of
> > ALP+SSL(optional)+TLP+IP- which is appropiately translated to Internet
> > protocols in a Gateway -. 'i-Mode service guideline' states that devices
> > must support WTCP (WAP2.0 TCPs version)+HTTP+[SSL]+....
> >
> > is it that in the beginning i-Mode used the first stack but that after
> > WAP2.0, i-Mode and WAP protocol stack will be the same? does HTTP in
> > 'i-Mode service guideline' means ALP or is it a full featured HTTPv4.0
> > or is it the WAP2.0's Wireless Profiled HTTP? does this 'new' HTTP
> > supports 'cookies'? where can I find more info?
> >
> > Regards,
> > Diego Gallego,
> >
> >
> >
> > This mail was sent to address curtis@access-us-inc.com
> > Need archives? How to unsubscribe? http://www.appelsiini.net/keitai-l/
> >
> >
>
>
>This mail was sent to address gustaf@xpedio.com
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