TSG-T Working Group 3 (USIM) meeting #3	TSGT3#3(99)-077
Helsinki 16th - 18th March 1999	
Agenda Item:	
Source: 	GSM 11.11 Rapporteur (Nippon Ericsson)
Title:	Draft Work Item on USIM Specifications based on GSM 11.11
Document for:	Approval	
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Work Item on USIM Specifications based on GSM 11.11
1	Justification 

This work item creates specifications for USIM file structure and logical interface between UICC (USIM) and 3G mobile terminal. The interface specifications, which are covered by ETSI SMG9 WP Generics, are excluded.
  
2	3GPP Work Area 
TSG-T 
	WG1: Conformance	
	WG2: MS capability	
X	WG3: USIM	

3	Linked work items
USIM Stage 1 (3GPP T3)
Generic physical and electrical specification for IC card and terminal interface (ETSI SMG9 Generics WP)

4	Service Aspects
Files for the USIM application are used to store information related with the services provided by 3G system.

5	MMI-Aspects
None
6	Charging Aspects
None

7	Security Aspects
When authentication and ciphering mechanisms for USIM are defined, the logical interface specifies a command/commends to run algorithms for authentication and ciphering, and a response for related parameters.

8	Impacts 
 
Affects:	USIM	ME	NW	Others	
Yes	X	X			
No 					
Don't know 			X		

9	Expected Output and Timescales 
This work item is for release 1999.

Affected existing specifications	
Spec No.	CR	Subject	Approved at TSG-T	Comments	
To be defined (?)		USIM-3G mobile terminal logical interface and USIM file structure	????		

10	Work item rapporteur
Nippon Ericsson

11	Supporting companies

12	Work item leadership
3GPP TSG-T  WG3

13	Others