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Content for  TS 23.273  Word version:  18.6.0

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C  PNI-NPN architecture to support location service with signalling optimisation |R18|p. 161

Figure C-1 shows the PNI-NPN architecture to support location services with optimisation of signalling latency and privacy, with the corresponding functional descriptions are defined in clause 5.13.
When UE access the NG-RAN in the local network, during the registration procedure or service request procedure, NG-RAN selects the Serving AMF in the public network. With appropriate configuration, local AMF cannot be selected as the serving AMF for the UE.
Assuming NG-RAN 1 is the serving RAN of UE. NG-RAN 2 and NG-RAN 3 illustrated in the figure below is for positioning signal measurement.
Reproduction of 3GPP TS 23.273, Fig. C-1: PNI-NPN architecture to support location service with signalling optimisation
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