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    BANDWIDTH INDICATIONS FOR A SECONDARY 160 MHZ CHANNEL
    1.
    发明申请
    BANDWIDTH INDICATIONS FOR A SECONDARY 160 MHZ CHANNEL 审中-公开

    公开(公告)号：WO2022251033A1

    公开(公告)日：2022-12-01

    申请号：PCT/US2022/030015

    申请日：2022-05-19

    Applicant: QUALCOMM INCORPORATED

    Inventor： SHELLHAMMER, Stephen Jay ,  TIAN, Bin ,  CHEN, Jialing Li ,  VERMANI, Sameer ,  WU, Kanke ,  KIM, Youhan

    IPC: H04L5/00

    Abstract: This disclosure provides methods, devices and systems for wireless communications over a 320 MHz bandwidth. Some implementations more specifically relate to signaling techniques for indicating the bandwidth of a physical layer convergence protocol (PLCP) protocol data unit (PPDU) transmitted in a secondary 160 MHz channel of the 320 MHz bandwidth. In some implementations, an access point (AP) may transmit an aggregated PPDU (A-PPDU) that includes a first sub-PPDU transmitted within a primary 160 MHz channel and a second sub-PPDU transmitted within a secondary 160 MHz channel. In such implementations, the first sub-PPDU may carry bandwidth information indicating the bandwidth of the first sub-PPDU within the primary 160 MHz channel and the second sub-PPDU may carry bandwidth information indicating the 320 MHz bandwidth.

    DUPLICATE TRANSMISSIONS WITH CHANNEL PUNCTURING
    2.
    发明申请
    DUPLICATE TRANSMISSIONS WITH CHANNEL PUNCTURING 审中-公开

    公开(公告)号：WO2022260783A1

    公开(公告)日：2022-12-15

    申请号：PCT/US2022/027813

    申请日：2022-05-05

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHEN, Jialing Li ,  WU, Kanke ,  TIAN, Bin ,  KIM, Youhan

    IPC: H04L27/26

    Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to tone mapping techniques and physical layer convergence protocol (PLCP) protocol data unit (PPDU) designs that support duplicate (or "DUP mode") transmissions with channel puncturing. In some implementations, a wireless communication device may transmit a PPDU carrying user data over a wireless channel excluding one or more punctured subchannels, where the user data is transmitted in a DUP mode. As such, the user data may be mapped to a number (N) of tones spanning a first portion of the wireless channel and a duplicate copy of the user data may be mapped to N tones spanning a second portion of the wireless channel.

    MULTI-USER DUPLICATE TRANSMISSION
    3.
    发明申请
    MULTI-USER DUPLICATE TRANSMISSION 审中-公开

    公开(公告)号：WO2022251028A1

    公开(公告)日：2022-12-01

    申请号：PCT/US2022/029983

    申请日：2022-05-19

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHEN, Jialing Li ,  WU, Kanke ,  TIAN, Bin

    IPC: H04L5/00

    Abstract: This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to tone mapping techniques and packet designs that support duplicate (or "DUP mode") transmissions to multiple users. In some implementations, an access point (AP) may transmit a PPDU that includes first user data and second user data, where at least the first user data is transmitted in a DUP mode. As such, the first user data may be mapped to a number (N) of tones spanning a first RU in accordance with a dual carrier modulation (DCM) scheme, and a duplicate copy of the first user data may be mapped to N tones spanning a second RU in accordance with the DCM scheme. In some implementations, the second user data also may be transmitted in a DUP mode.

    DUPLICATED DATA SEQUENCE TRANSMISSIONS WITH REDUCED PEAK TO AVERAGE POWER RATIO
    4.
    发明申请
    DUPLICATED DATA SEQUENCE TRANSMISSIONS WITH REDUCED PEAK TO AVERAGE POWER RATIO 审中-公开

    公开(公告)号：WO2022020622A1

    公开(公告)日：2022-01-27

    申请号：PCT/US2021/042819

    申请日：2021-07-22

    Applicant: QUALCOMM INCORPORATED

    Inventor： WU, Kanke ,  CHEN, Jialing Li ,  TIAN, Bin

    IPC: H04L27/26 ,  H04B7/12

    Abstract: Duplicated physical layer convergence protocol (PLCP) protocol data unit (PPDU) transmission is described for a wireless device with reduced peak-to-average power ratios (PAPR). One example includes obtaining a first sub-PPDU from ta PPDU that includes a data field with data content. A second sub-PPDU may also be obtained by duplicating the PPDU including the data content of the PPDU. At least one of a phase rotation, a phase offset, or a phase ramp is applied to at least a portion of a second set of sub-carrier of a wideband channel. The first sub-PPDU is transmitted on a first set of sub-carriers of the wideband channel and the second sub-PPDU is transmitted on the second set of sub-carriers of the wideband channel.

    LONG TRAINING FIELD WITH REDUCED PEAK-TO-AVERAGE POWER RATIO
    5.
    发明申请
    LONG TRAINING FIELD WITH REDUCED PEAK-TO-AVERAGE POWER RATIO 审中-公开

    公开(公告)号：WO2021262691A1

    公开(公告)日：2021-12-30

    申请号：PCT/US2021/038439

    申请日：2021-06-22

    Applicant: QUALCOMM INCORPORATED

    Inventor： WU, Kanke ,  CHEN, Jialing Li ,  YANG, Lin ,  TIAN, Bin

    IPC: H04L27/26 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2621 ,  H04W84/12

    Abstract: Various aspects relate generally to the generation and wireless transmission of a long training field (LTF) and a data field within a 320 MHz or 240 MHz bandwidth channel. The LTF includes an LTF sequence based on a concatenation of a plurality of LTF subsequences, each LTF subsequence being associated with a channel bandwidth less than the total bandwidth of the channel, each of the plurality of LTF subsequences being selectively phase-rotated to reduce a peak-to-average power ratio. Each of the plurality of LTF subsequences may be associated with an LTF designed for an 80 MHz bandwidth channel. The LTF and the data field may then be transmitted in a wireless packet to at least one second wireless communication device via the 320 MHz or 240 MHz bandwidth channel.

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