Study on enhancement to the 5GC LoCation Services (LCS); Phase 3
The scope of this Technical Report is to study further enhancements to the to the 5GC LoCation Services including the following aspects:
- Investigate potential architectural enhancements to location service (e.g. in scenarios like edge computing, and other), i.e. support Positioning Signalling via user plane.
- Investigate potential architectural enhancements to location service (e.g. in scenarios like edge computing, and other), i.e. reduction of location service latency, signalling overhead and location estimate exposure.
- Study how the location services can benefit from NWDAF reporting and how the NWDAF use cases can benefit from location services, e.g. enhanced accuracy in certain UE location or population flow statistics data that require UE locations smaller than TA/cell
- Study enhancements to support low power positioning (e.g. for RedCap) including the requirements related to low power high accuracy positioning described in TS 22.104 [7].
- Study necessary enhancement to support regulatory requirement i.e. the network should not notify the UE by any means during the LCS session.
- Study enhancement to support the Flexible and Efficient Periodic and Triggered Location for UE power saving purpose.
- In collaboration with RAN, study specific network functionality related to use of Positioning Reference Units (PRUs) as defined by RAN WGs and study how 5GS to support a specific UE (i.e. Reference UE) to improve the accuracy of positioning, and reduce the signalling:
- Study enhancements to support the location service continuity for UE mobility, i.e. between EPS and 5GS;
- For 5G with satellite access, in collaboration with RAN, study LCS architectural enhancement to support network verified UE location, and to meet location services related requirements defined in TS 22.261 [8].