In case you have any queries or want to connect with Ali Khalid, please feel free to drop a comment under t or follow him on LinkedInĪlso, If you liked this article, then please subscribe to our Youtube channel – Our Technology Planet for more exciting stuff and videos. Thus, PDSCH SINR is usually the best SINR as it does not have any interference other than load based interference. Many mobiles use a combination of both CSI resources along with PDSCH resources to estimate SINR and then convert it to CQI. Note: CSI-RS SINR > SS-SINR as CSI-RS are lean in structure and can move with PCIĪnother aspect of 5G SINR is based on PDSCH SINR. One way to calculate it is based on CSI-RS/CSI-IM as stated in 3GPP.ĬSI-RS SINR = CSI RSRP / CSI InterferenceĬonvert CSI-RS SINR to CQI and send to gNB This one can be calculated based on mobile implementation. Since SS_RSRP and SS_SINR is something related to coverage and mobility, 5G needs another SINR for link estimation. For this, SNR or SINR would be more accurate. You can get more absolute criteria for signal quality. Note : SS SINR is used for N310/311 as well As you see in the RSRQ page, the maximum RSRQ value you can achieve is -3dB. However, on different cells, the location of SSS is same so all the SSS will interfere with each other and thus SS SINR would be low. So, SS_RSRP and SS_SINR are important values. Therefore, the interference between them is reduced.įor 5G, UE measures coverage based on SSS in SSB. For different cells, the RS move in frequency domain based on PCI. In LTE, the Cell Reference Signals are used for both coverage and link estimation.
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