name: DL-TDOA
full_form: Downlink Time Difference Of Arrival
context: Subclause 4.7 of the test specification TS 37.141 (Manufacturerâs declarations of supported RF configurations) will contain defined Capability Sets (CS), the support of which is subject to manufacturers declaration. Table 9.1.1-1 shows the six capability sets CS1 to CS6, based on the possible RAT combinations that can be declared. The following abbreviations are used below: CS Capability Set MC multi-carrier (in single RAT) SC single carrier MR multi-RAT SR single-RAT TC Test Configuration, Table 9.1.1-1. Example capability sets Example: A BS is declared to support CS6. This implies that the BS is capable to support the following configurations (applicable only to BC2): - MR GSM + UTRA + E-UTRA - MR GSM + UTRA - MR GSM + E-UTRA - MR UTRA + E-UTRA - SR GSM (MCBTS) - SR UTRA (SC, MC) - SR E-UTRA (SC, MC) It is assumed that a manufacturer declares support of one and only one Capability Set. The applicable Test Configurations will then be defined for each RF requirement and Capability Set.
description: Downlink Time Difference Of Arrival (DL-TDOA) is a technique used in 5G New Radio (NR) to determine the location of a user equipment (UE). It measures the time difference of arrival of downlink signals from multiple NR cells transmitting Downlink Positioning Reference Signals (DL-PRS).
explanation: DL-TDOA is classified as a positioning technology because its primary function is to determine the location of a device (UE) using time differences in signal reception from multiple cellular base stations.
section_title: 8.2.11	Simulated DL-TDOA environment
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