name: OTDOA
full_form: Observed Time Difference Of Arrival
context: cell is known to the UE), and TMIB = 50 ms is the time required to acquire SFN and/or PHICH configuration of the E-UTRA OTDOA assistance data reference cell provided the OTDOA assistance data reference cell is decodable and at least all E-UTRA subframes #0 during TMIB are available at the UE receiver (TMIB=0 when nr-LTE-SFN-Offset is provided in the E-UTRA OTDOA assistance data and ECGI acquisition is not needed), and TECGI = 100 ms is the time required to acquire ECGI of the E-UTRA OTDOA assistance data reference cell when cellGlobalId is included in OTDOA-ReferenceCellInfo and the UE is not aware of the ECGI of this cell (TECGI = 0 when cellGlobalId is not included in OTDOA-ReferenceCellInfo or the UE is aware of the ECGI of the E-UTRA OTDOA assistance data reference cell). When detecting the E-UTRAN OTDOA reference cell, the requirements in this clause shall be met, provided the conditions for the detectable cell are fulfilled according to clause 9.4.2.1. In addition, the MIB of
description: Observed Time Difference Of Arrival (OTDOA) is a parameter used in E-UTRA (Evolved Universal Terrestrial Radio Access) to assist with cell detection and synchronization. It represents the time difference between the arrival times of signals from different cells, which helps the UE (User Equipment) to determine its location and synchronize with the network.
explanation: The context describes OTDOA as a parameter used in E-UTRA for specific functions like cell detection and synchronization. This directly aligns with the definition of a parameter as a measurable value or factor influencing a system's behavior.
section_title: 9.4.4.1.2Requirements
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