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TR 23.871 (SA2)
Enhanced support for user privacy in Location Services (LCS)

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(W-zip) V5.0.0    2002/07    27 p.


Rapporteur:  Mr. Kåll, Jan
Descendant(s):  TS 23.271    


This TR for Rel-5 identifies and describes enhanced user privacy in location services (LCS) and the corresponding functional requirements. The TR describes some possible enhancements to the privacy mechanisms provided for Location Services to support the increasing number of LCS clients and the varying privacy requirements for location services. The TR describes the stage-2 type of functional requirements for enhancing user privacy in location services that may be moved to the LCS Stage 2 specification TS 23.271, as seen feasible by TSG SA2.

The basic network solution as standardized in TS 23.271 Release 5 is described in general terms in the TR, with an indication of what enhanced privacy features are supported in Rel-5. The further enhanced LCS privacy features in Rel-6 and some alternative network solutions to support user privacy in Release 6 are also described and compared.

It should be noted that the GMLC-GMLC interface (Rel-6) is not taken into account in most network alternatives described in this report.


 

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1 Scope    2 References    3 Definitions, symbols and abbreviations    3.1 Definitions    3.2 Abbreviations    4 General description    5 Functional Description and Functional Requirements    5.1 Service Type Privacy    5.2 Support for enhanced privacy checking    5.3 Requestor    5.4 User Control    5.5 Codeword    5.7 Anonymity    5.8 Related privacy issues in Presence and Location services    5.9 Summary of enhanced user privacy in location services in Rel-5 and Rel-6    6 Network support for user privacy in Rel-5    6.1 Network support for Service Type and Codeword in Rel-5    6.2 Network support for Requestors in Rel-5    7 Network support for enhanced privacy checking in Release 6    7.1 Architecture alternative with privacy profile register (PPR)    7.2 Architecture alternative with privacy profile register (PPR) attached to MSC/SGSN    7.3 Architecture alternative with Home GMLC    7.4 Architecture alternative with PPR associated with the HSS only    7.5 Comparison between each architectural alternatives    7.6 Conclusion on architecture for the enhanced privacy checking    8 Possible requestor enhancements in Rel-6    8.1 Architecture alternative with requestor authentication in GMLC    8.2 Backward compatibility    9 Stage 2 description of the anonymity concept    10 Charging Aspects    11 Security aspects    12 Roaming, Service Availability and Continuity    13 Conclusion    A Change history   

 

1   Scope   Word-p. 6
2   References
3   Definitions, symbols and abbreviations
4   General description
5   Functional Description and Functional Requirements
6   Network support for user privacy in Rel-5   Word-p. 11
7   Network support for enhanced privacy checking in Release 6
8   Possible requestor enhancements in Rel-6
9   Stage 2 description of the anonymity concept
10   Charging Aspects
11   Security aspects
12   Roaming, Service Availability and Continuity
13   Conclusion   Word-p. 26
A   Change history   Word-p. 27      Up

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