Generating a channel state information ("CSI") report

• Main Authors: Hindy, Ahmed, Mittal, Udar, Brown, Tyler
• Format: Patent
• Language: English
• Published: 17.08.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

Apparatuses, methods, and systems are disclosed for generating a CSI report. One apparatus includes a transceiver that receives a set of reference signals transmitted from a base station and a processor that transforms the set of reference signals to obtain per-layer vectors of amplitude and phase coefficients of a DFT-compressed codebook. Here, the first element of the amplitude coefficient vector corresponding to one particular beam is unity and the first element of the phase coefficient vector corresponding to the particular beam is zero. The apparatus transmits CSI feedback that includes an indication of one or more elements of the vectors of amplitude coefficient vectors and phase coefficient vectors corresponding to at least one identified beam, and does not include the first element of the amplitude coefficient vector and the first element of the phase coefficient vector corresponding to the particular beam.