inside TS 23.273: 5GC-MT-LR involving Mobile
When the MBSR is integrated or fully migrated to a new gNB, the OAM triggers the LMF to perform TRP Information Exchange procedure. The
During the UE positioning process, the LMF first identifies the position-ing methods and invokes the positioning tasks in the UEs and the related base stations in the NG-RAN. Then, the LMF collects the positioning measurements from the corresponding terminals and determines a final position estimation result for LCS.
In this work, we present our design, implementation and evaluation of the 5G Location Management Function (LMF), the key network function in the 5G core for localization services. Our implementation complies with the 3GPP standard and OpenAirInterface, the currently most advanced framework that implements a full 5G-New Radio stack.
Its primary responsibility is to manage the location of mobile devices (such as smartphones, tablets, IoT devices) within the mobile network. By tracking the current location of these devices, the LMF ensures that calls, data transfers, and other services are correctly routed to the appropriate location.
Downlink and Uplink Location Measuring Radio Signals: By analyzing signals exchanged between the UE and the network, the LMF estimates the device's position. Fusion with Global Navigation Satellite Systems (GNSS): In scenarios where GNSS (e.g., GPS) is available, combining 5G positioning with GNSS can enhance accuracy.
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