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Content for TR 38.856 Word version: 16.0.0

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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. 7

3.3 Abbreviations p. 7

4 General p. 7

5 Local LMF in NG-RAN p. 7

5.1 Architecture p. 7

5.1.1 Alternative 1 p. 7

5.1.2 Alternative 2 p. 8

5.1.3 Alternative 3 p. 9

5.1.4 Function supported by LMC p. 9

5.2 Impact on existing protocols and interfaces p. 10

5.2.1 Location Service procedures involving LMC p. 10

5.2.1.1 5GC Mobile Terminated Location Request (5GC-MT-LR) p. 10

5.2.2 Impacts on Signalling protocols and interfaces p. 10

5.2.2.1 Signalling between an AMF and gNB/LMC p. 10

5.2.2.2 Signalling between a gNB/LMC and UE p. 12

5.2.2.3 Signalling between gNBs/LMCs p. 13

5.2.2.4 Signalling between gNB-CU and LMC p. 13

5.3 Coordination and coexistence with LMF in the 5GC p. 13

6 LCS client in NG-RAN p. 14

6.1 Architecture p. 14

6.2 Impact on existing protocols and interfaces p. 15

7 Conclusion p. 15

7.1 LMC in NG-RAN p. 15

7.2 NG-RAN as a LCS client p. 15

A New LMC functions p. 16

A.1 RAN Induced Location Request (RI-LR) p. 16

$ Change History p. 18