Method for reporting channel state information in wireless communication system, and device for same
摘要
說明書
As another example, the priority value may increase in an ascending order of the index of the spatial region. As another example, i) the index of the spatial region of the strongest coefficient and ii) the index of the spatial region corresponding to the beam having the opposite polarization with respect to the beam corresponding to the strongest coefficient may have the highest priority (i.e., the priority value may be the smallest). After that, the priority values of the remaining indexes may be sequentially determined in ascending order. Alternatively, the indexes are remapped so that the index of the spatial region of the strongest coefficient becomes 0, and the remaining indexes are also remapped in the form of a cyclic shift, and then priority values may be determined in the order of the remapped indexes.
As another example, when some of the bases (or components) (e.g., M) of the frequency domain are reported (e.g., M′) and the remaining parts are omission, it is possible to select the consecutive indexes as many as the bases to be reported based on based on the index (e.g., index=0) in the frequency domain of the strongest coefficient, and report the information on the corresponding coefficients and the information in the form of a bitmap corresponding to the coefficients. As a similar example, when reporting some of the basis (or components) of the spatial domain, the index corresponding to the index in the spatial domain of the strongest coefficient and the coefficients corresponding to the indexes of the SD bases that is a pair in terms of the antenna port and the information in the form of the bitmap corresponding to the coefficients may be reported (coefficients corresponding to the remaining SD base indexes and the information in the form of the bitmap corresponding thereto may be omitted).
