name: DMRS
full_form: Demodulation reference signal
context: with the gNB-CU-CP as follows: - A list of TNL address(es) with which the gNB-CU-UP successfully established the TNL association shall be included in the gNB-CU-CP TNLA Setup List IE; - A list of TNL address(es) with which the gNB-CU-UP failed to establish the TNL association shall be included in the gNB-CU-CP TNLA Failed To Setup List IE. If the GNB-CU-CP CONFIGURATION UPDATE message includes gNB-CU-CP TNLA To Remove List IE, the gNB-CU-UP shall, if supported, initiate removal of the TNL association(s) indicated by gNB-CU-UP TNL endpoint(s) and gNB-CU-CP TNL endpoint(s) if the TNLA Transport Layer Address gNB-CU-UP IE is present, or the TNL association(s) indicated by gNB-CU-CP TNL endpoint(s) if the TNLA Transport Layer Address gNB-CU-UP IE is absent: - if the received TNLA Transport Layer Address IE includes the Port Number IE, the gNB-CU-CP TNL endpoint is identified by the Endpoint IP Address IE and the Port Number IE. Otherwise, the gNB-CU-CP TNL endpoints correspond to all
description: The Demodulation Reference Signal (DMRS) is a type of reference signal used in the downlink direction to assist the user equipment (UE) in demodulating the received signal. It is transmitted on specific antenna ports and is essential for single-layer spatial multiplexing, enabling the UE to detect and decode the desired signal while rejecting interference from simultaneous transmissions on other DMRS antenna ports.
explanation: The context describes DMRS as a signal used in downlink transmission, specifically aiding in demodulation and spatial multiplexing. The mention of antenna ports and its role in separating signals indicates that DMRS functions as a channel for data transmission.
section_title: 8.3.1.1I	Single-layer Spatial Multiplexing (with assistance information for simultaneous transmition interfering PDSCH)
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