|
Reasons for the question
The ability to support appropriate (i.e., non commercial in nature)
interworking between existing IMT-2000 systems (family members) is required.
Since existing and evolving IMT-2000 systems have been specified by the SDOs,
the reason for this question is to identify functions which are required to
facilitate interworking between the following:
- Between IMT-2000 family members,
- Between IMT-2000 family members and the PSTN/ISDN, and
- Between IMT-2000 family members and Packet Data networks.
The interworking between existing and evolving IMT-2000 systems will include
the following functional levels:
- Service Provisioning
- Mobility Management
- Session Control (e.g. call control), and
- Bearer Control (e.g. circuit mode, packet mode)
As various releases of IMT-2000 family members continue to develop, new
documentation will need to be produced to reflect the releases of these systems.
If any of this work is specified by SDOs, it shall be examined and referred
to. It is not the intent of this question to duplicate effort already spent in
the SDOs.
Question
What interworking functions are required to facilitate appropriate
interworking between existing and evolving IMT-2000 family members, PSTN/ISDN
and Packet Data networks?
Task objectives
The major focus of this question is to identify and specify the functions
required to facilitate interworking between the existing and evolving IMT-2000
family member systems, the PSTN/ISDN and Packet Data Networks. The task
objectives for the question are:
1) Identifying the functions required to facilitate appropriate
interworking between the IMT-2000 family members developed by the SDOs, and
document these in an appropriate manner for consideration by the Partnership
Projects and SDOs, and other ITU-T SGs including SG11, as part of their long
term network evolution plans. Reference should be made to those family
members specified under question Q.3/SSG.
Expected Completion: appropriate agreed SSG deliverable within 12 month
of systems being identified by Q.3/SSG. First deliverables agreed end 2002
2) Identifying the functions required to facilitate appropriate
interworking between IMT-2000 family members developed by the SDOs and the
PSTN/ISDN developed by Study Group 11, and document these in an appropriate
manner for consideration by the Partnership Projects and SDOs, and other
ITU-T SGs including SG11, as part of their long term network evolution
plans. Reference should be made to those family members specified under
question Q.3/SSG.
Expected Completion: appropriate agreed SSG deliverable within 12 month of
systems being identified by Q.3/SSG. First deliverables agreed end 2002
3) Identifying and specifying the functions required to facilitate
appropriate interworking between the IMT-2000 family members developed by
the SDOs and Packet Data Networks developed e.g. by Study Group 7 and IETF,
and document these in an appropriate manner for consideration by the
Partnership Projects and SDOs, and other ITU-T SGs including SG11, as part
of their long term network evolution plans. Reference should be to those
family members specified under question Q.3/SSG.
Expected Completion: appropriate agreed SSG deliverable
within 12 months of systems being identified by Q.3/SSG. First deliverable
agreed end 2002.
Relationships
These activities will require close coordination with:
- External organisations, such as SDOs, including IETF
- ITU-T Study Group 2, 7, 11, 13 and others
- ITU-T Special Study Group on "IMT-2000 and Beyond",
Question "Identification of existing and evolving IMT-2000
systems" Q3/SSG,
- ITU-T Special Study Group on "IMT-2000 and Beyond",
Question "NNI Mobility Management Protocol (Stage 3)" Q2/SSG,
- ITU-T Special Study Group on "IMT-2000 and Beyond",
Question "To participate in the preparation of a handbook on
IMT-2000" Q5/SSG,
- ITU-R Working Party 8D, 8F.
|
