Table 3 Subband size (S) and number of subbands (M) vs. system bandwidth for user-selected feedback
From: Adaptive CSI and feedback estimation in LTE and beyond: a Gaussian process regression approach
System bandwidth | Subband size | M |
|---|---|---|
\(N_{\textit {PRB}}^{DL}\) | (S) | |
6–7 | NA | NA |
8–10 | 2 | 1 |
11–26 | 2 | 3 |
27–63 | 3 | 5 |
64–110 | 4 | 6 |