name: QCL
full_form: Quasi Co-Location
context: between the antenna ports of two CSI-RS resources is supported. - By default, no QCL should be assumed between antenna ports of two CSI-RS resources. - Partial QCL parameters (e.g., only spatial QCL parameter at UE side) should be considered. - For downlink, NR supports CSI-RS reception with and without beam-related indication, - When beam-related indication is provided, information pertaining to UE-side beamforming/receiving procedure used for CSI-RS-based measurement can be indicated through QCL to UE - QCL information includes spatial parameter(s) for UE side reception of CSI-RS ports Indication of QCL assumption associated with subset of QCL parameters between the antenna ports of two RS resources is supported. By default (i.e., the UE is not indicated), antenna port(s) transmitted on different CCs canât be assumed to be quasi-collocated except for spatial domain QCL assumptions.
description: Quasi Co-Location (QCL) refers to a set of parameters indicating the assumption of quasi-co-location between antenna ports of two CSI-RS resources in the context of NR (New Radio) downlink. These parameters include spatial QCL parameters for UE-side reception of CSI-RS ports, enabling the indication of beamforming/receiving procedures used for CSI-RS-based measurements.
explanation: QCL is classified as a Parameter because it represents a set of attributes or values that define the quasi-co-location assumption between antenna ports. The context highlights its role in facilitating CSI-RS reception and measurement processes, which are critical network operations.
section_title: 8.2.1.6.5Quasi-colocation (QCL)
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