TRANSMISSION AND DETERMINATION OF CHANNEL STATE INFORMATION

Embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media for transmission and determination of CSI. A first device determines a set of CSI reports for a channel between the first device and a second device serving the first device, each CSI report having a different priority for transmission and comprising first information about a first set of parameters that is required to be transmitted and second information about a second set of parameters that can be selectively transmitted, the second information being divided into a first portion having a first priority for transmission and a second portion having a second priority for transmission lower than the first priority. The first device determines, from the set of CSI reports, a CSI report of which the second information is to be partially transmitted, determines a total number of non-zero coefficients across layers of the channel in the first portion of the determined CSI report; determines a payload s