orting while the requested PMI is wideband. "cri-RI-i1-CQI" is similar to the previous case, but in addition to the wideband PMI drawn from a single-panel Type I codebook, the UE also is requested to report CQI. "cri-RI-CQI" implies a non-PMI port indication report where r ports are indicated in the order of layer ordering for rank r. 6 5G Physical Layer "cri-RSRP" or "ssb-Index-RSRP" implies that the UE needs to measure and report L1-RSRP, with such measurements being performed on either NZP CSI-RS or SS blocks. The performed measurements are limited to no more than 64 CSI-RS and/or SS Block resources. In addition, the measurements may be done independently or may be grouped according to how the CSI-RS or SSB are received simultaneously by the UE, either with a single spatial domain receive filter or with multiple simultaneous spatial domain receive filters. 6.12.4 CSI Components The CSI components have the function of providing channel information, as seen at the UE, to the transmitter (gNB). For this purpose, various components are available that describe various pieces of information representing the channel, from more detailed to more complex information, as described in the following sections. 6.12.4.1 Channel Quality Indicator (CQI) The CQI principles of NR are very similar to those of LTE. CQI reporting is based on QPSK, 16-QAM, 64-QAM, and 256-QAM. It is worth noting the definition, which is based on the CQI calculation at the UE, with respect to the utilization of the measurements. The 5G NR specification stipulates that the CQI is calculated based on an unrestricted observation interval in time. However, the UE may be subjected to a measurement restriction imposing the performance and reporting of instantaneous measurements. In summary, 5G supports both instantaneous and averaged measure- ments. The target BLER for eMBB services if 0.1, while for higher-reliability services it is 0.00001. As in LTE, there exists wideband and subband CQI, where for the subband case, a two bit differential CQI is used. 6