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    SYSTEM AND METHOD FOR WLAN OFDMA DESIGN OF SUBCARRIER GROUPS AND FRAME FORMAT
    63.
    发明申请
    SYSTEM AND METHOD FOR WLAN OFDMA DESIGN OF SUBCARRIER GROUPS AND FRAME FORMAT 审中-公开

    公开(公告)号：US20170353276A1

    公开(公告)日：2017-12-07

    申请号：US15685722

    申请日：2017-08-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Osama Aboul-Magd ,  Jung Hoon Suh ,  Kwok Shum Au

    IPC: H04L5/00 ,  H04W74/08 ,  H04L5/14 ,  H04W72/04 ,  H04W84/12 ,  H04L27/26

    Abstract: Embodiments are provided for WLAN Orthogonal Frequency Division Multiple Access (OFDMA) design of subcarrier groups and corresponding frame format. An embodiment method includes grouping a plurality of subcarriers for OFDMA transmissions into a plurality of subcarrier groups in accordance with a pre-defined grouping structure for subcarriers. The method further includes allocating the subcarrier groups to a plurality of corresponding users, and signaling, to the users, a map of the subcarrier groups to the corresponding users. According to the pre-defined grouping structure, each one of the subcarrier groups includes a plurality of consecutive subcarriers, a plurality of non-consecutive subcarriers, or a combination of consecutive and non-consecutive subcarriers according to a deterministic structure. The map is signaled using an OFDMA PPDU comprising a legacy preamble portion configured to silence legacy users that do not use OFDMA communications, an OFDMA preamble portion indicating the map, and a data portion.

    Dual-Stream Signal (SIG) Field Encoding with Higher Order Modulation
    65.
    发明申请
    Dual-Stream Signal (SIG) Field Encoding with Higher Order Modulation 有权
    双流信号（SIG）字段编码与高阶调制

    公开(公告)号：US20150215818A1

    公开(公告)日：2015-07-30

    申请号：US14677356

    申请日：2015-04-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Jung Hoon Suh ,  Kwok Shum Au ,  Osama Aboul-Magd ,  Sheng Sun

    IPC: H04W28/06 ,  H04L5/00 ,  H04L27/20 ,  H04L1/06

    CPC classification number: H04W28/065 ,  H04L1/0643 ,  H04L5/0023 ,  H04L27/20 ,  H04L27/2602 ,  H04L27/2613 ,  H04W84/12

    Abstract: Signal (SIF) field capacity can be significantly increased by encoding SIG field data using two streams in accordance with a space-time block code (STBC) encoding scheme. Dual-stream SIG field encoding allows for the utilization of higher order modulation schemes, such as quadrature phase-shift keying (QPSK), which increases SIG field capacity. Dual-stream encoded SIG fields are transmitted using an omnidirectional beam to allow mobile stations to accurately decode the SIG field irrespective of their spatial location.

    Abstract translation: 根据空时块码（STBC）编码方案，通过使用两个流编码SIG场数据可以显着增加信号（SIF）场容量。 双流SIG字段编码允许利用诸如正交相移键控（QPSK）的更高阶调制方案，这增加了SIG场容量。 双流编码的SIG字段使用全向光束传输，以允许移动台准确地解码SIG字段，而不考虑它们的空间位置。

    Data retransmission in wireless network
    66.
    发明授权
    Data retransmission in wireless network 有权

    公开(公告)号：US12284033B2

    公开(公告)日：2025-04-22

    申请号：US17372091

    申请日：2021-07-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yan Xin ,  Wei Lin ,  Kwok Shum Au

    IPC: H04L1/00 ,  H04L1/1607 ,  H04L1/1812 ,  H04W84/12 ,  H04W40/12

    Abstract: Methods and devices are disclosed for transmitting data, including segmenting a group of information bits into a set of information blocks that each include a respective plurality of the information bits; encoding, using low density parity check (LDPC) encoding, each of the information blocks to generate corresponding codewords; transmitting the codewords to a destination station; receiving a feedback message indicating that at least one of the codewords has not been successfully decoded by the destination station; interleaving the information bits of the information block that corresponds to the at least one of the codewords; encoding, using low density parity check (LDPC) encoding, the interleaved information bits to generate an interleaved codeword; and transmitting the interleaved codeword to the destination station.

    NULL DATA PACKET ANNOUNCEMENT (NDPA) FRAME INDICATION
    69.
    发明申请
    NULL DATA PACKET ANNOUNCEMENT (NDPA) FRAME INDICATION 有权

    公开(公告)号：US20230098549A1

    公开(公告)日：2023-03-30

    申请号：US17490414

    申请日：2021-09-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Michael Peter MONTEMURRO ,  Jung Hoon SUH ,  Osama ABOUL-MAGD ,  Stephen MCCANN ,  Yan Xin ,  Kwok Shum Au

    IPC: H04B7/06

    Abstract: The present disclosure provides methods and apparatus related to NDPA frame indication. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel state information (CSI). The request includes a null data packet announcement (NDPA) frame including a first field and a second field. The first field indicates presence of the second field, and the second field indicates a variant of the NDPA frame. The method further includes receiving, from the one or more STAs, a CSI feedback response based on the request. In some embodiments, the first field is one of a sounding dialog token field and indicates the presence of the second field via at least two bits. In some embodiments, the first field is a frame control field and indicates the second field via a 4-bit subtype subfield.

    Multiband scheduling for wake up radio
    70.
    发明授权
    Multiband scheduling for wake up radio 有权

    公开(公告)号：US11082976B2

    公开(公告)日：2021-08-03

    申请号：US16735163

    申请日：2020-01-06

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Kwok Shum Au

    IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W52/02 ,  H04B1/00

    Abstract: Methods and systems for waking up a wireless receiving stations having wake-up radio (WUR) circuits. A method of providing a wake-up signal in a communications channel for a plurality of receiving stations, including generating at least a first series and a second series of waveform coded symbols, the first series being incorporated into a first wake-up-radio (WUR) frame that is intended for a first receiving station and has a first predefined bandwidth, the second series being incorporated into a second WUR frame that is intended for a second receiving station and has a second predefined bandwidth; combining the first and second WUR frames into a multiband WUR data unit having a bandwidth that is greater than a sum of the predefined bandwidths of the first and second WUR frames; and transmitting a wake-up signal including the multiband WUR data unit in the communications channel.

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