Lossy Compressed Feedback For Multiple Incremental Redundancy Scheme (MIRS)

    公开(公告)号:US20230090440A1

    公开(公告)日:2023-03-23

    申请号:US17480823

    申请日:2021-09-21

    Abstract: Various embodiments may provide systems and methods for supporting lossy compression of feedback information, such as acknowledgment (ACK) information, negative acknowledgement (NACK) information, etc. Various embodiments may support lossy compression for feedback messages in retransmission systems, such as Hybrid Automatic Repeat Request (HARD) protocols, the Multiple Incremental Redundancy Scheme (MIRS), etc. Various embodiments may support compression of feedback bits using a different compression codebook per symbol or per group of symbols. Various embodiments may support selection of a compression codebook per symbol, or per group of symbols, based at least in part on a probability of successful decoding of each code block in the symbol or group of symbols.

    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.

    PHYSICAL LAYER SECURED MESSAGE SEGMENTATION AND TRANSMISSION OVER DIFFERENT BEAMS

    公开(公告)号:US20220248218A1

    公开(公告)日:2022-08-04

    申请号:US17168080

    申请日:2021-02-04

    Abstract: A method of secure wireless communication is performed by a user equipment (UE). The method receives, from a base station, sub-messages of a secured physical layer message, each sub-message received over a different beam. The method also decodes the sub-messages into decoded message segments. Further, the method reconstructs the secured physical layer message from the decoded message segments. A method of secure wireless communication by a base station includes receiving, from a user equipment (UE), a list of candidate beams for transmission and a reception metric for each of the candidate beams. The method also includes segmenting a secured physical layer message into sub-messages. The method further includes transmitting, to the UE, a control message indicating a structure of the secured message and a transmit beam for each of the plurality of sub-messages; and transmitting, to the UE, each sub-message over a different transmit beam of the candidate beams.

    UE BEAM RESELECTION PROCEDURE WITH CSI REPORTING AND BEAM SWITCH INDICATION

    公开(公告)号:US20220225312A1

    公开(公告)日:2022-07-14

    申请号:US17149556

    申请日:2021-01-14

    Abstract: In embodiments, a base station may send to a user equipment (UE) a P3 beam management (BM) channel state information reference signal (CSI-RS) having two ports, and may receive from the UE a P3 BM report in response. The P3 BM report may include a proactive UE beam switch indication and a CSF report corresponding to the best UE beam determined by a UE based on the P3 BM CSI-RS. The base station may determine whether the P3 BM report includes an indication that the UE will perform a beam switch from a first UE beam to a second UE beam, and may determine a UE beam switch slot during which the UE will perform the beam switch. Starting at the beam switch slot, the base station may send a physical downlink shared data channel (PDSCH) transmission to the UE using the adjusted downlink transmission parameters.

    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.

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