Alcatel Reaction on H.323m contributions

Edgar Martinez [1] martinze at CIG.MOT.COM
Mon Nov 15 15:01:13 EST 1999

Dear MR. Thiebaut,

The document you just send out has my name
on the contact list. Which you edited without my
consent. You should respect everyone's work and
next time you change any contribution you put your
name and use a different MTD. The original MTD-05 is in.

Also the contribution source is "Mobility Ad-hoc group"???
I am part of the "Mobility AD-HOC group" and again neither myself or anyone
representing Motorola or myself gave MR. Thiebaut permission or concur
the use of the "Mobility Ad-hoc group" as the source.

I hope you do not represent how things are done in 3GPP.

MR. Thiebaut, on your blindness attempt to re-used my work to
promote your own views. Let me warn you, the document was
put in informational only. I send out email that we should
restrain from comments until we went over all the
contributions first in the conference call meeting.


The Edited MTD-05 in this email is not from Motorola
please contact MR. Laurent Thiebaut <LAURENT.THIEBAUT at ALCATEL.FR>
with your comments. I would not even bother to use the SG16 mailer to do

see below for further comments:

Laurent Thiebaut wrote:

>      Hello everybody,
>      I have just subscribe to itu-sg16.
>      I'm mostly interested in H.323 link with radio access, being involved in
>      3GPP standardization (3GPP S2 working group responsible of network
>      architecture)
>      Please find attached some comments on Contribution "Integrating
>      3GPP's option-1 architecture into the H.323 wireless IP mobility
>      system and a full migration from GPRS to a Multimedia IP network
>      proposal" (file MTD-05) - source Motorola - to be discussed on
>      wednesday about H323 mobility.
>         - comment on section "Alternate Proposal for an all IP option for 3GPP
>      R'00. The purpose the all IP proposal is also to allow support of release
>      99 CS domain terminals. In addition it will also support the IP based
>      services of option 1."
>      The figure shown in the contribution does **NOT** correspond to the
>      support of the CS terminals as described in 3GPP 23.922. This option 2
>      of the 3GPP standard corresponds to the option 1 architecture plus
>                 -- a MSC server mainly that comprises the call control and
>      mobility control parts of a GSM/UMTS R99 MSC.
>      MSC server controls the parts of the call state that pertain to
>      connection control for media channels in a MGW.
>                 -- A GMSC server that mainly comprises the call control and
>      mobility control parts of a GSM/UMTS R99 GMSC.
>      The attached contains extracts from 3GPP23.922 that
>      explain the 3GPP position on network architecture.

The following is clearly stated in the document:

For simplicity, only the 3GPP interfaces relevant to H.323 interfaces
are shown for discussion.

If one wants to compare, please See 3G TR 23.922 version 1.0.0[6]
for full details of option 1.

>      The following further discrepancies between contribution MTD05 and
>      3GPP specifications are:
>                 -- The network architecture defined by 3GPP does *NOT*
>      imply to have the GK and the SGSN function mixed,
>                 -- nor has 3GPP accepted to merge the GGSN and the MG
>      functions
>                 -- nor has 3GPP accepted to have a Gi interface between
>      UTRAN (radio) and GGSN (Gateway to Packet Data networks such as
>      Intranets / ISPs).
>      Merging of functions is always possible at the implementation level
>      but should not be dictated by standardization when not necessary.
>      As H.323 networks may have to interact with other non 3GPP radio (and
>      even mobile, non terrestrial radio) networks,  it is better to have,
>      as 3GPP has done, a clear separation between (radio) access bearer
>      layer - UTRAN, ERAN, SGSN, GGSN for 3GPP networks, PDSN for CDMA2000
>      networks - and multimedia call control layer e.g. GK.

What I am talking about is "Full migration from GPRS to
Multimedia IP network".  Not a decompose MSC or GMSC
the so-called Circuit Switched Trunk Gateway WGW (aka switch)
and MSC server (aka SCP) your so-called all IP concepts.

Finally in a full IP network the only separation that will exist is
Circuit Switched networks (Old) and IP based networks (New). The bridge
between the Old and New, will be the Signaling gateways and
media gateways.

The H.323 mobility group should also consider the
interworking of the GPRS network and provide a GPRS
migration path to a full IP network solution. Such as the work
in H.323 is providing an interworking and migration path for
the PSTN to a full IP network solution. In addition the H.323
mobility group could include the two options "Alternate Proposal for an
all IP option for 3GPP R'00"  interim solution, and the Full migration from GPRS
into H.323 Annex-H  interworking sections. Further details can
be discussed within the H.323 mobility group.

>      Best regards
>         Laurent T.
> ---------------------------------------------------------------------------
>       V    Laurent Thiebaut      tel: +33 (0)1 3077 0645
> A L C A T E L                    e.mail:laurent.thiebaut at
> ---------------------------------------------------------------------------
> (Alcatel representant to 3GPP SA Working group 2 that is responsible of 3GPP
> system architecture)
>   ------------------------------------------------------------------------
>                    Name:
>    Type: Winzip32 File (application/x-winzip)
>                Encoding: base64

Edgar Martinez - Principal Staff Engineer
Email mailto:martinze at
FAX 1-847-632-3145 - - Voice 1-847-632-5278
1501 West Shure Drive, Arlington Hgts. IL 60004
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