1. 3GPP Liaison Report Date: 2008-05-14 Authors: May 2008 May 2008
doc.: IEEE /0629r0
May 2008
3GPP Liaison Report
Date:
Authors:
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

2. Abstract Liaison Report for 3GPP
May 2008
doc.: IEEE /0629r0
May 2008
Abstract
Liaison Report for 3GPP
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

3. May 2008
doc.: IEEE /0629r0
May 2008
Background
TGu has been liaising with 3GPP for about 3-4 years starting with requirements advice to advertising our current work.
Two principle groups:
3GPP SA1 : requirements
3GPP SA2 : architectures
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

4. Liaison to Architecture Group (SA2)
May 2008
doc.: IEEE /0629r0
May 2008
Liaison to Architecture Group (SA2)
Invitation from 3GPP SA2 to share TGu work with them
ls-from-3gpp-sa2-to doc
Sent “TGu overview” response in January 2008, asking if this was of any interest to 3GPP. This included a special version of the TGu Draft 2.0, which was subsequently not distributed to 3GPP members for copyright reasons.
liaison-to-3gpp-sa2-regarding-joint-meeting-february-2008.doc
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

5. New Liaison from SA2 : 11-08-0585r0
May 2008
doc.: IEEE /0629r0
May 2008
New Liaison from SA2 : r0
TSG SA WG2 would like to inform CT1/SA1 that they have received the LS S from IEEE u, including a summary of IEEE u, “Interworking with External Networks” and requesting recommendations in this area.
SA2 was under the view that CT1 and SA1 normally perform specification changes in the area of Network Selection. CT1 are then kindly asked to help in the query by answering IEEE u questions included in LS S Consequently, SA2 also believe that this is up to CT1 to decide to perform stage 3 changes in this area.
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

6. Liaison to Requirements Group (SA1)
May 2008
doc.: IEEE /0629r0
May 2008
Liaison to Requirements Group (SA1)
The 3GPP SA1 requirements group was interested in the network selection work from TGu:
Liaison about Network Selection in TGu
ls-CR-from-3GPP-SA1-to doc
Response
ls-from to-3GPP-SA1-re-UE-access.doc
Unfortunately they were looking for a secure method of sending state 1 data, which TGu/TGw could not solve.
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks

7. Next Steps within TGu Different liaison cultures between 3GPP and IEEE
May 2008
doc.: IEEE /0629r0
May 2008
Next Steps within TGu
Different liaison cultures between 3GPP and IEEE
Timelines do not match
Very frustrating correspondence
What is the continued benefit to IEEE of these exchanges
Continue to discuss 3GPP liaison issues in TGu r0
Stephen McCann, Nokia Siemens Networks
Stephen McCann, Nokia Siemens Networks