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TR 33.886
Study on enhanced Security for Network Slicing
Phase 3

3GPP‑Page  
V18.1.0 (Wzip)  2023/09  16 p.
Rapporteur:
Dr. Lei, Zander (Zhongding)
HuaWei Technologies Co., Ltd

full Table of Contents for  TR 33.886  Word version:  18.0.1

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1 Scope  2 References  3 Definitions of terms, symbols and abbreviations  4 Key issues  5 Solutions  6 Conclusions  $ Change history 

 

1  Scope  p. 6

The present document identifies key security issues, potential security and privacy requirements and solutions with respect to network slicing Phase 3 work. Specifically,
  • It studies potential security impact/requirements/solutions (e.g. Steering of Roaming) to support the HPLMN to provide a roaming UE the VPLMN slice information in a secure manner
  • It studies potential security impact/requirements/solutions to support temporary slices, slice service areas mismatched with TA boundaries, and slices where S-NSSAI not available in some TAs of RA.
  • It studies potential security impact/requirements/solutions to support secured NSAC procedures in the cases of NSAC for multiple service areas and network controlled UE behaviours.
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2  References  p. 6

3  Definitions of terms, symbols and abbreviations  p. 6

3.1  Terms  p. 6

3.2  Symbols  p. 6

3.3  Abbreviations  p. 7

4  Key issues  p. 7

4.1  Key Issue #1: providing VPLMN slice information to roaming UE  p. 7

4.1.1  Key issue details  p. 7

4.1.2  Security threats  p. 7

4.1.3  Potential security requirements  p. 7

4.2  Key Issue #2: temporary slice authorization and slice service area authorization  p. 7

4.2.1  Key issue details  p. 7

4.2.2  Security threats  p. 8

4.2.3  Potential security requirements  p. 8

4.3  Key Issue #3: network slice admission control (NSAC)  p. 8

4.3.1  Key issue details  p. 8

4.3.2  Security threats  p. 9

4.3.3  Potential security requirements  p. 9

5  Solutions  p. 9

5.1  Solution #1: Verification by Primary NSACF  p. 9

5.1.1  Introduction  p. 9

5.1.2  Solution details  p. 9

5.1.3  Evaluation  p. 10

5.2  Solution #2: Protect NSAC procedure in multiple NSACFs deployment scenario  p. 10

5.2.1  Introduction  p. 10

5.2.2  Solution details  p. 11

5.2.3  Evaluation  p. 12

5.3  Solution #3: Home control mechanism for hierarchical NSAC architecture  p. 13

5.3.1  Introduction  p. 13

5.3.2  Solution details  p. 13

5.3.3  Evaluation  p. 14

6  Conclusions  p. 15

6.1  Conclusions to Key Issue #1  p. 15

6.2  Conclusions to Key Issue #2  p. 15

6.3  Conclusions to Key Issue #3  p. 15

$  Change history  p. 16

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