Apparatus, system and method of beamforming and beam tracking

    公开(公告)号:US11438907B2

    公开(公告)日:2022-09-06

    申请号:US17030906

    申请日:2020-09-24

    Abstract: For example, a first Enhanced Directional Multi-Gigabit (DMG) (EDMG) station (STA) may be configured to exchange first and second Beam Refinement Protocol (BRP) setup frames with a second EDMG STA to initiate a BRP Transmit Sector Sweep (TXSS) over an aggregated channel bandwidth including an aggregation of a primary channel and a secondary channel in a frequency band above 45 GHz; during the BRP TXSS, transmit a plurality of BRP frames to the second EDMG STA over the primary channel and the secondary channel according to an EDMG control mode; determine a transmit beamforming configuration over the aggregated channel bandwidth based on BRP feedback from the second EDMG STA; and transmit an EDMG Physical Layer (PHY) Protocol Data Unit (PPDU) to the second EDMG STA over the aggregated channel bandwidth based on the transmit beamforming configuration.

    ULTRA-LOW LATENCY DATA TRANSMISSION IN WLANS

    公开(公告)号:US20220124746A1

    公开(公告)日:2022-04-21

    申请号:US17561743

    申请日:2021-12-24

    Abstract: The application relates to ultra-low latency data transmission in Wireless Local Area Networks (WLANs). An apparatus used in an Access Point Station (AP STA), including processor circuitry configured to cause the AP STA to, when there is downlink urgent data that must be transmitted without waiting for a scheduled downlink slot: generate a downlink urgent packet from the downlink urgent data; and in a blank symbol of ongoing Orthogonal Frequency Division Multiplexing (OFDM) uplink transmission to the AP STA, transmit the downlink urgent packet on frequency domain resources for the ongoing OFDM uplink transmission to the AP STA, or in a blank symbol of ongoing OFDM downlink transmission from the AP STA, transmit the downlink urgent packet on frequency domain resources for the ongoing OFDM downlink transmission from the AP STA.

    APPARATUS, SYSTEM AND METHOD OF TRANSMITTING A PPDU

    公开(公告)号:US20220029726A1

    公开(公告)日:2022-01-27

    申请号:US17483442

    申请日:2021-09-23

    Abstract: An apparatus of a transmitter may include, for example, a Golay builder to build modulated Golay sequences for at least a non-EDMG Short Training Field (L-STF), and a non-EDMG Channel Estimation Field (L-CEF) of a PPDU; a scrambler to generate scrambled bits by scrambling bits of a non-EDMG header (L-header) and a data field of the PPDU; an encoder to encode the scrambled bits into encoded bits according to a low-density parity-check (LDPC) code; a constellation mapper to map the encoded bits into a stream of constellation points according to a constellation scheme; a spreader to spread the stream of constellation points according to a Golay sequence; and a transmit chain mapper to map a bit stream output from the Golay builder and the spreader to a plurality of transmit chains by applying a spatial expansion with relative cyclic shift over the plurality of transmit chains.

    Zero latency BSS transition with on-channel tunneling (OCT)

    公开(公告)号:US11234174B2

    公开(公告)日:2022-01-25

    申请号:US16728344

    申请日:2019-12-27

    Abstract: Embodiments of transitioning between BSSs using on-channel tunneling (OCT) are generally described herein. OCT procedures are used for scanning and association with a co-located or non-co-located peer AP. The OCT procedures include communicating a Probe/Re-authentication/Re-association Request frame from a STA using an OCT Request frame to the peer AP and receiving a Probe/Re-authentication/Re-association Response frame from the peer AP using another OCT Request frame. The communications between the STA and the AP are either in the same frequency band or a different frequency band as the OCT communications between the AP and the peer AP.

    APPARATUS, SYSTEM AND METHOD OF COMMUNICATING A PHYSICAL LAYER PROTOCOL DATA UNIT (PPDU) INCLUDING A TRAINING FIELD

    公开(公告)号:US20210168010A1

    公开(公告)日:2021-06-03

    申请号:US17120473

    申请日:2020-12-14

    Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a PPDU including a training field. For example, an Enhanced Directional Multi-Gigabit (DMG) (EDMG) wireless communication station may be configured to determine one or more Orthogonal Frequency Division Multiplexing (OFDM) Training (TRN) sequences in a frequency domain based on a count of one or more 2.16 Gigahertz (GHz) channels in a channel bandwidth for transmission of an EDMG PPDU including a TRN field; generate one or more OFDM TRN waveforms in a time domain based on the one or more OFDM TRN sequences, respectively, and based on an OFDM TRN mapping matrix, which is based on a count of the one or more transmit chains; and transmit an OFDM mode transmission of the EDMG PPDU over the channel bandwidth, the OFDM mode transmission comprising transmission of the TRN field based on the one or more OFDM TRN waveforms.

    APPARATUS, SYSTEM AND METHOD OF WIRELESS SENSING

    公开(公告)号:US20210044407A1

    公开(公告)日:2021-02-11

    申请号:US17083502

    申请日:2020-10-29

    Abstract: For example, a first device may calibrate a reference channel estimation based on a plurality of first channel estimation measurements, the plurality of first channel estimation measurements corresponding to first PPDUs received from a second device over a wireless channel, wherein two consecutive channel estimation measurements of the plurality of first channel estimation measurements are separated by no more than a first time interval; and determine a plurality of second channel estimation measurements for detection of a change in an environment of the wireless channel based on the reference channel estimation, wherein the plurality of second channel estimation measurements corresponds to a plurality of second PPDUs received from the second device over the wireless channel, wherein two consecutive channel estimation measurements of the plurality of second channel estimation measurements are separated by at least a second time interval, the second time interval is longer than the first time interval.

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