name: PRB
full_form: Physical Resource Block
context: IOTA filter guarantees a quasi-optimal localisation in time/frequency domain; it is obtained by applying the Isotropic Orthogonal Transform Algorithm to the Gaussian function aiming at orthogonalizing this function. Thus, the IOTA function has the following properties: - it is identical to its Fourier Transform, so, the OFDM/IOTA signal is affected similarly by the time and frequency spreading due to propagation conditions (if parameters are adapted to the channel), - the time-frequency localization is quasi optimal as the IOTA function does not differ a lot from the Gaussian function (optimally localized). Figure 10 and Figure 11 show various representations of the IOTA function. On Figure 11, the frequency response of the IOTA function is represented, as well as the rectangular function (used in classical OFDM). Figure 10: IOTA function and its Fourier transform Figure 11: IOTA and Rectangular Function Fourier transforms Orthogonality of IOTA function is expressed as: with OFDM/OQAM
description: A Physical Resource Block (PRB) is a unit of resource allocation in the physical layer of a cellular network, specifically in the context of Narrowband Internet of Things (NB-IoT) and E-UTRA (Evolved Universal Terrestrial Radio Access) carriers. It refers to a specific block of radio resources allocated for transmission.
explanation: The text describes PRB as a unit of resource allocation within the physical layer of a cellular network, specifically allocated for transmission. This aligns with the definition of a channel as a medium or pathway for signal transmission.
section_title: 4.8.20.1	TC20 generation
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biotag_Description: O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,I-Technology,I-Technology,I-Technology,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O