TRANSMIT PRECODING FOR PEAK TO AVERAGE POWER RATIO REDUCTION

    公开(公告)号:US20230327933A1

    公开(公告)日:2023-10-12

    申请号:US17718950

    申请日:2022-04-12

    CPC classification number: H04L27/2617 H04B7/0617 H04B7/0639

    Abstract: In a wireless communication system, a peak to average power ratio (PAPR) may affect the efficiency of a power amplifier. To reduce a PAPR, a transmitting device may utilize a PAPR reduction precoding that changes a received signal without performance impact so the overall transmit PAPR is reduced. The transmitting device constructs a frequency domain (FD) response to the PAPR reduction precoding, estimates a channel to one or more receiving devices, and applies the PAPR reduction precoding to the estimated channel. The transmitting device constructs a multiple input multiple output (MIMO) precoding matrix considering the FD response of the PAPR reduction precoding and applies the MIMO precoding matrix and the PAPR reduction precoding to an FD signal. A receiving device applies the FD response conjugated to a received FD signal from the transmitting device and processes at least a received reference signal based on the PAPR reduction precoder.

    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.

    CHANNEL BASED TONE RESERVATION
    77.
    发明申请

    公开(公告)号:US20220408439A1

    公开(公告)日:2022-12-22

    申请号:US17353332

    申请日:2021-06-21

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a downlink communication is to be transmitted having tone reservation applied to one or more subcarriers of a downlink channel based at least in part on the downlink channel, the one or more subcarriers having indices associated with a set of verification bits. The UE may decode the downlink communication based at least in part on the tone reservation being applied to the one or more subcarriers and based at least in part on the set of verification bits. Numerous other aspects are described.

    DOWNLINK CONTROL INFORMATION (DCI) FORMAT FOR SLEEP CONFIGURATION

    公开(公告)号:US20220400443A1

    公开(公告)日:2022-12-15

    申请号:US17344861

    申请日:2021-06-10

    Abstract: Certain aspects of the present disclosure provide techniques for downlink control information (DCI) format for power efficiency. A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), a first DCI message in a first symbol of a downlink control channel, the first DCI message comprising a portion of an identifier that consists of less than all parts of the identifier, the first symbol being one of a plurality of symbols in a time period. The method may also include, when the portion of the identifier corresponds to the UE, receiving downlink data via resources indicated by a second DCI message, the second DCI message received in a second symbol of the downlink control channel, the second DCI message indicating the resources for receiving downlink data, the second symbol being another one of the plurality of symbols in the time period.

    CHANNEL OCCUPANCY INFORMATION MULTI-ACCESS REPORTING

    公开(公告)号:US20220141873A1

    公开(公告)日:2022-05-05

    申请号:US17513602

    申请日:2021-10-28

    Abstract: User equipments (UEs) may be configured to perform channel occupancy information multi-access reporting. In some aspects, a user equipment may receive a sidelink configuration message identifying the first UE and one or more other UEs as members of a multicast group and a resource to be used for sidelink communications amongst the multicast group, and receive channel occupancy information (COI) from at least one of the one or more UEs within the multicast group, the COI indicating an occupied condition of the resource determined by the at least one of the one or more UEs during a sensing operation performed with respect to the resource. Further, the UE may select a period of time to transmit a sidelink communication based at least in part on the COI.

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