name: DL-PRS
full_form: Downlink Positioning Reference Signal
context: For the proposed NR positioning enhancements, we use DL-TDOA+DL-CPP or UL-TDOA+UL-CPP as the Rel.17 enhancement scheme. Carrier Phase Positioning can be supported by using Rel.16 DL-PRS or UL-SRS, i.e., the UE or gNB can get the carrier phase measurements together with other NR positioning measurements without additional RF resources and new reference signals. Therefore, the network efficiency of our proposed NR positioning enhancements is the same as that of Rel.16 positioning solutions. The definition of DL-PRS/UL-SRS resource utilization and the calculation of DL-PRS/UL-SRS resource utilization according to the described definition are shown as in below. Definition of DL-PRS resource utilization Assume gNB x has M TRPs (the index of TRP is j, and j=1~M-1) which are configured to transmit DL-PRS, and each TRP is configured with N DL-PRS resource sets (the index of DL-PRS resource set is i, i=1~N-1). In order to avoid the interference among these DL-PRS resource sets, either the
description: Downlink Positioning Reference Signal (DL-PRS) is a technology used in 5G networks for positioning and location services. It enables the measurement of carrier phase and other positioning measurements without additional RF resources or new reference signals.
explanation: The context describes DL-PRS as a technological component within 5G networks, specifically designed for positioning and location services. Its function relies on enabling precise measurements for location determination.
section_title: C.3.1.2.2Network efficiency analysis of NR positioning enhancements
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