FREQUENCY TRACKING FOR BEAMFORMED SYSTEMS

    公开(公告)号:US20220085962A1

    公开(公告)日:2022-03-17

    申请号:US17531884

    申请日:2021-11-22

    Applicant: Apple Inc.

    Abstract: Systems, methods, and baseband processors are provided to generate or process symbols in a synchronization subframe. In one example, a method includes selecting non-consecutive orthogonal frequency division multiplexing (OFDM) symbols in a synchronization subframe. A transmitter is instructed to transmit demodulation reference symbols (DM-RS) on identical first sets of subcarriers in respective OFDM symbols of the selected non-consecutive OFDM symbols for a Physical Broadcast Channel (PBCH) using a same transmit beam, wherein a gap between two subcarriers in a respective set of the identical first sets of subcarriers is three subcarriers. The transmitter is instructed to transmit the PBCH on identical second sets of subcarriers in respective OFDM symbols in the selected non-consecutive OFDM symbols.

    Channel state information concatenation and antenna port measurement

    公开(公告)号:US11025326B2

    公开(公告)日:2021-06-01

    申请号:US16479195

    申请日:2018-06-13

    Applicant: Apple Inc.

    Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.

    CHANNEL STATE INFORMATION REPORT ON PHYSICAL UPLINK SHARED CHANNEL IN NEW RADIO

    公开(公告)号:US20200274660A1

    公开(公告)日:2020-08-27

    申请号:US16646188

    申请日:2018-09-10

    Applicant: Apple Inc.

    Abstract: Methods and apparatuses for channel state information report on physical uplink shared channel in new radio are provided. An apparatus for a user equipment (UE), comprising: a processor, configured to generate a uplink (UL) signal data for a physical uplink shared channel (PUSCH) by using a resource mapping scheme; and a radio frequency (RF) interface, configured to receive the generated UL signal data from the processor, wherein at least a part of the resource mapping scheme is predefined, configured by higher layer signalling, or indicated in downlink control information (DCI).

    Channel state information concatenation and antenna port measurement

    公开(公告)号:US12250046B2

    公开(公告)日:2025-03-11

    申请号:US18520202

    申请日:2023-11-27

    Applicant: Apple Inc.

    Abstract: Herein described are apparatuses, systems, and methods for measurement and reporting of channel state information within wireless network systems. In embodiments, an apparatus for a user equipment (UE) may include memory to store a rank indicator (RI), a precoding matrix index (PMI), and a channel quality indicator (CQI) of channel state information (CSI) for the UE. The apparatus may further include circuitry to concatenate the RI, the PMI, and the CQI to produce a concatenated CSI element, generate a CSI report that includes the concatenated CSI element, and cause the CSI report to be transmitted to a base station within a single slot. Other embodiments may be described and/or claimed.

Patent Agency Ranking