Sounding sequence null data packet announcement indication

    公开(公告)号:US11064564B2

    公开(公告)日:2021-07-13

    申请号:US16349909

    申请日:2017-06-28

    Abstract: An apparatus of a wireless communications device to transmit a sounding announcement frame (SAF) for use in a round-trip estimation to a receiving station, and associated method are provided. The apparatus is configured to encode an encoded field of the SAF that is one of a frame control field (FCF) or a sounding dialog token field (SDTF) of a null data packet announcement (NDPA) packet that forms the SAF to indicate to the receiving station that a communication different from a trigger frame may follow. The apparatus is also configured to configure the wireless device to transmit the NDPA packet to one or more stations.

    NULL DATA PACKET FRAME FORMAT
    82.
    发明申请

    公开(公告)号:US20210127287A1

    公开(公告)日:2021-04-29

    申请号:US17139560

    申请日:2020-12-31

    Abstract: This disclosure describes systems, methods, and devices related to null data packet (NDP) frame format. A device may cause to send a null data packet announcement (NDPA) frame to a responding station device (RSTA). The device may cause to send a first sounding NDP frame comprising one or more fields formatted to support 2.4 gigahertz (GHz) and 5 GHz bands in a non-trigger-based ranging measurement with the RSTA. The device may identify after a passage of a short inter-frame space (SIFS) time a second NDP frame received from the RSTA. The device may identify a location measurement report frame from the RSTA.

    Systems and methods for uplink DMRS enhancement in FD-MIMO

    公开(公告)号:US10708013B2

    公开(公告)日:2020-07-07

    申请号:US16067680

    申请日:2016-03-30

    Abstract: The present disclosure includes systems and methods for reducing intra-cell interference during uplink MU-MIMO. An uplink grant that allocates a plurality of resource blocks is obtained. A first portion of the plurality of RBs that are overlapping with a set of RBs granted to a second UE is determined. A second portion of the plurality of RBs that are non-overlapping with the set of RBs granted to the second UE is also determined. A first demodulation reference signal (DMRS) sequence is generated for the first portion of the plurality of RBs. A second DMRS sequence is generated for the second portion of the plurality of RBs, where the second DMRS sequence is different than the first DMRS sequence. An uplink transmission (e.g., PUCCH, PUSCH) is generated that includes RBs having different DMRS sequences.

    Wireless device, method, and computer readable media for requesting and sending block acknowledgement

    公开(公告)号:US10219181B2

    公开(公告)日:2019-02-26

    申请号:US15507040

    申请日:2014-09-29

    Abstract: An apparatus, method, and computer readable media for requesting and sending block acknowledgement requests (BARs) and block acknowledgments (BAs) is disclosed. A method for BARs is disclosed. The method may include transmitting data frames to two or more wireless communication devices in accordance with a multi-user multiple-input and multiple-output (MU-MIMO). The method may include transmitting block acknowledgement requests (BARs) for the transmitted data frames to the two or more wireless communication devices in accordance with MU-MIMO. The method may include receiving block acknowledges (BA) of the data frames from the two or more wireless communication devices in accordance with MU-MIMO. A method for BAs is disclosed. The method may include receiving data frames from a second wireless communication device. The method may include receiving a block acknowledgement request from the second wireless communication device The method may include sending a block acknowledgement to the second wireless communication device using MU-MIMO.

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