receive node device arranged to report channel state information between a transmit node device and the receive node device and transmit node device arranged to receive and process channel state information between the transmit node device and a receiving node device

摘要

patent: "channel state information report". The present invention relates to reporting a channel state information (csi) between a transmit node (tn) and a receive node (rn) in wireless communications. for a tn which is arranged for multicast antenna transmissions and the csi being represented by matrix / matrices, wi, from a codebook, c, comprising a plurality of arrays; wherein each matrix in said codebook c represents a state for the multiple antenna channel from tn to rn, k_ 1 and i = o ... k-1; a first subindex, k1, and at least a second subindex, k2, are reported for each of the matrix k w1, where each of the k matrix wi is indexed by the first and second subindexes, and the first and second subindexes have time reporting granularity - different frequency.