Does anyone know what type of bandwidth and latency characteristics the
third generation mobile systems use for the mentioned specifications that
employ unaligned PER?
Thanks.
\t
>From: Divij <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>CC: [EMAIL PROTECTED]
>Subject: Re: [ASN.1] examples of unaligned PER
>Date: Mon, 16 Jul 2001 23:28:42 -0700 (PDT)
>
>Hello Sir,
>Eventhough i am new to ASN and UMTS, I Have got a
>chance to work with the ASN part of a couple of UMTS
>specs (RANAP, NBAP, RNSAP, RRC to be precise) . I have
>observed that RRC is not using the OpenType and allied
>features of ASN (as much as other protocols have) to
>define its structures.
>Moreover, since we expect a lot of tafffic on RRC, (
>effectively everything from UE to RNC goes through RRC
>) , and
>-: looking at the size of the RRC structure, and
>-: cost of radio resources, probably the people
>writing the spec have tried to extract maximum they
>can to by using "unaligned per encoding". Also I am
>not aware of any 3gpp protocol spec which uses ECN, if
>you come across any, please mail in the spec numbers
>to me too.
>regards
>Divij
>
>
>
>
>
>
> > John Larmouth <[EMAIL PROTECTED]> on
> > 07/16/2001 09:07:48 PM
> >
> > Please respond to [EMAIL PROTECTED]
> >
> > To: [EMAIL PROTECTED]
> > cc: Bancroft Scott <[EMAIL PROTECTED]>, Olivier
> > Dubuisson
> > <[EMAIL PROTECTED]>
> >
> > Subject: Re: [ASN.1] examples of unaligned PER
> >
> >
> >
> >
> > Benoit,
> >
> > I am interested in your remark about ECN. (I am the
> > ISO Rapporteur for
> > ASN.1). I am sure you are aware that the ECN work
> > was very much
> > expedited because of a possible application in 3GPP,
> > and that most of
> > the extensibility support has been designed with
> > full consideration of
> > the 3GPP extensibility encodings, and with the
> > strong desire for ECN to
> > provide such encodings with "clean" and simple
> > ASN.1.
> >
> > However, my impression is that, due to the increased
> > pressures to
> > finalize 3GPP, ECN will not be used in those
> > specifications. I hope I
> > am wrong! Would you care to comment?
> >
> > John L
> >
> > Benoit POSTE wrote:
> > >
> > > timur patrick wrote:
> > > >
> > > > I am looking for a list of applications that use
> > unaligned PER. I am
> > > > interested to see what type of applications
> > justify the need for this kind
> > > > of misalignment over the aligned variant. What
> > type of network
> > > > bandwidth/latency are typically used and on what
> > kind of data?
> > > >
> > > > Any information from users of this specific
> > encoding rules would be much
> > > > appreciated.
> > >
> > > Hello Patrick ...
> > >
> > > I know UMTS RRC uses PER unaligned, as does
> > Locationing
> > > (RRLP). As I am more concerned with the ASN.1 part
> > and less with
> > > the application one, I will not be able to go into
> > much detail,
> > > but as far as I know, people from 3GPP seem to
> > think that the
> > > more compact the better (they even consider PER
> > unaligned not to
> > > be compact enough in some cases and envision a
> > possible use of
> > > ECN).
> > > Anyhow, I guess you'll have no difficulty
> > finding more precise
> > > informations on both topics on the net :).
> > >
> > > HTH,
> > > Benoit Poste.
> >
> > --
> > Prof John Larmouth
> > 1 Blueberry Road
> > [EMAIL PROTECTED]
> > Bowdon Tel: +44 161
> > 928 1605
> > Cheshire WA14 3LS Fax: +44 161
> > 928 8069
> > England
> >
> >
> >
> >
>
>
>__________________________________________________
>Do You Yahoo!?
>Get personalized email addresses from Yahoo! Mail
>http://personal.mail.yahoo.com/
_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
