ENHANCED CHANNEL STATE INFORMATION REPORTING

The invention relates to channel state information (CSI) reporting and provides a bundled CSI report suitable to convey large volumes of CSI data. A client device (100) bundles a plurality of CSI measurements, each having a first reporting format, into a bundled CSI report and provides the bundled CSI report to a network access node (300). The bundled CSI reporting capability may be configured by the network access node (300) and may be activated dynamically. The bundled CSI reporting enables low overhead transmission of large volumes of CSI data, in situations where latency is not critical. Furthermore, time series of CSI measurements with finer time granularity than the reporting period can be constructed.