Title:	A proposal of MS classmark separation for CN domains in CS and PS
Date:	99-04/19-21
Source:	NTT DoCoMo
Related to:	UMTS MM issue
1.	Abstract
This contribution propose that UMTS Classmark should be separated between circuit switched service domain and packet switched (IP) service domain.
2.	 Discussion: from service domain point of view
In the UMTS architecture discussion, the two service domains, CS switched service domain and PS switched (IP) service domain are recognized. This view point is also valid for MS classmark. In the UMTS service there may be a good number of services involving MS capability especially in the packet switched (IP) service domain. Some of the examples are WAP and MEXE and in the later phase of UMTS there may be more parameters specifically belonging to packet switched (IP) service domain (and specifically belonging to circuit switched service domain). So the parameters belonging to packet(IP) service domain and circuit service domain will differ more and more following the time. To keep the isolation of circuit service domain from the unnecessary involvement of development of packet service domain, it is required for UMTS phase1 specification to separate the MS classmark between circuit service domain and packet(IP) service domain.
3.	Conclusion
The MS classmark should be separated between circuit service domain and packet(IP) service domain.
4.	PROPOSAL
It is proposed that 23.20 should be modified to clarify the conclusion as follows.
<modified text>
Chapter 7.3.X UMTS MS classmark
UMTS MS classmark should be separated between circuit switched service domain belonging one and packet switched (IP) service domain belonging one in order to avoid unnecessary involvement of development coming from each other service domain.