SUB-TERAHERTZ SUB-BAND FLATTENING FEEDBACK

    公开(公告)号:US20220286182A1

    公开(公告)日:2022-09-08

    申请号:US17656779

    申请日:2022-03-28

    Abstract: Aspects presented herein may enable a receiving device to receive high frequency signals with a simpler receiver to reduce the overall complexity and cost associated with the receiver. In one aspect, an apparatus receives a reference signal from a second wireless device. The apparatus measures amplitude and phase of the reference signal relative to a set point. The apparatus transmits channel flattening information in a precoding feedback to the second wireless device, the precoding feedback including at least a difference between the amplitude of the reference signal and the set point for a sub-band.

    LINE-OF-SIGHT MULTIPLE-INPUT MULTIPLE-OUTPUT (LOS-MIMO) COMMUNICATIONS USING FOCUSING ELEMENTS

    公开(公告)号:US20220286164A1

    公开(公告)日:2022-09-08

    申请号:US17195056

    申请日:2021-03-08

    Abstract: A first wireless communication device includes a plurality of antenna elements, a transceiver coupled to the plurality of antenna elements, and a focusing element positioned in a transmitting path of at least one of the plurality of antenna elements. The transceiver is configured to transmit, to a second wireless communication device, a multiple-input multiple-output (MIMO) signal. The transceiver configured to transmit the MIMO signal is configured to: transmit, to the second wireless communication device via a first antenna element of the plurality of antenna elements, a first communication signal; and transmit, to the second wireless communication device via a second antenna element of the plurality of antenna elements, a second communication signal. The focusing element is configured to: direct the first communication signal in a first direction; and direct the second communication signal in a second direction different from the first direction.

    BUTLER MATRIX STEERING FOR MULTIPLE ANTENNAS

    公开(公告)号:US20220200147A1

    公开(公告)日:2022-06-23

    申请号:US17126983

    申请日:2020-12-18

    Abstract: Aspects of disclosure relate to beam steering at a multi-antenna device. The device receives an activation signal to activate one or more input ports of a Butler matrix and outputs signals from all output ports of the Butler matrix based on activation of the one or more input ports. The signals output from the output ports have varying phase shifts relative to each other. Moreover, the device phase shifts the signals output from the output ports via a plurality of phase shifters respectively coupled to the output ports. The phase shifted signals have further varying phase shifts relative to each other and a phase difference between adjacent phase shifted signals. Each one of a plurality of antenna elements at the device receives a phase shifted signal from an associated phase shifter and outputs a beam based on the phase shifted signal received from the associated phase shifter.

    OPTIMIZED UE BEAMFORMING WITH NULL SPACE REPORT

    公开(公告)号:US20220167343A1

    公开(公告)日:2022-05-26

    申请号:US17105383

    申请日:2020-11-25

    Abstract: A configuration for optimized UE beamforming with a null space report. The apparatus establishes a connection with a base station. The apparatus transmits, to the base station, a UE report comprising one or more beamforming capabilities of the UE. The apparatus receives, from the base station, a null space report comprising null space information for the UE based on the beamforming capabilities reported by the UE

    ENHANCED PHASE TRACKING REFERENCE SIGNAL

    公开(公告)号:US20210351889A1

    公开(公告)日:2021-11-11

    申请号:US17314952

    申请日:2021-05-07

    Abstract: A phase tracking reference signal (PTRS) may be enhanced to carry data encoded with a relative low modulation and coding scheme (MCS). A receive device may receiving a data channel, the data channel including a transport block encoded using a first MCS. The receiving device may receiving a PTRS interleaved with the data channel. The PTRS is encoded with the second MCS that is lower than the first MCS. The receiving device may decode the PTRS to determine PTRS data. The receiving device may track phase noise using the PTRS data as a transmitted sequence of the PTRS. The receiving device may decode the transport block for the data channel based on the first MCS and the tracked phase noise.

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