公开(公告)号：US20220104053A1

公开(公告)日：2022-03-31

申请号：US17427346

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Qiaoyang YE ,  Bharat SHRESTHA ,  Debdeep CHATTERJEE ,  Gregory MOROZOV

IPC: H04W24/10

Abstract: An approach is described for a user equipment (UE) for enhanced machine-type communication (eMTC) in a connected mode, where the UE includes processor circuitry and radio front end circuitry. The processor circuitry is configured to perform a downlink (DL) quality measurement, and to generate a DL quality report based on the DL quality measurement, wherein a definition of the DL quality report matches a definition of quality report in Msg3. The radio front end circuitry is configured to transmit the DL quality report to a next generation base station (gNB).

公开(公告)号：US20220077911A1

公开(公告)日：2022-03-10

申请号：US17417302

申请日：2020-01-18

Applicant: Apple Inc.

Inventor： Victor SERGEEV ,  Alexei DAVYDOV ,  Bishwarup MONDAL ,  Gregory MOROZOV ,  Dmitry DIKAREV

IPC: H04B7/06 ,  H04B7/0456

Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.