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    OVER-PUNCTURE MITIGATION IN LDCP RATE MATCHING
    1.
    发明申请
    OVER-PUNCTURE MITIGATION IN LDCP RATE MATCHING 有权

    公开(公告)号：US20220224362A1

    公开(公告)日：2022-07-14

    申请号：US17707911

    申请日：2022-03-29

    申请人： Xiaogang Chen ,  Thomas J. Kenney ,  Qingua Li ,  Robert Stacey ,  Shlomi Vituri

    发明人： Xiaogang Chen ,  Thomas J. Kenney ,  Qingua Li ,  Robert Stacey ,  Shlomi Vituri

    IPC分类号： H03M13/00 ,  H03M13/33 ,  H03M13/47

    摘要： This disclosure describes systems, methods, and devices related to over-puncture mitigation. A device may generate a frame comprising a payload having a payload size associated with a number of bits. The device may determine a low-density parity-check (LDPC) codeword size based on the payload size. The device may calculate a number of codewords based on the payload size. The device may calculate a number of shortening bits and a number of LDPC padding bits based on the number of codewords. The device may calculate a number of orthogonal frequency division multiplexing (OFDM) symbols for containing the number of codewords. The device may cause to send the frame with the number of OFDM symbols to a station device.

    Enhanced tone mapping for trigger-based null data packet feedback
    5.
    发明授权
    Enhanced tone mapping for trigger-based null data packet feedback 有权

    公开(公告)号：US10667265B2

    公开(公告)日：2020-05-26

    申请号：US16251010

    申请日：2019-01-17

    申请人： Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

    发明人： Xiaogang Chen ,  Shlomi Vituri ,  Assaf Gurevitz ,  Qinghua Li ,  Feng Jiang

    IPC分类号： H04W72/04 ,  H04L5/00

    摘要： This disclosure describes systems, methods, and devices related to tone mapping for a high-efficiency (HE) trigger-based (TB) null data packet (NDP) feedback physical layer protocol data unit (PPDU). A device may identify a frame received from a second device. The device may determine, based on the frame, a resource unit allocated to the device, wherein the resource unit is associated with a 20 MHz sub-channel of a bandwidth. The device may determine, based on the resource unit and the bandwidth, tones associated with a HE short training field (HE-STF) of a HE TB NDP feedback PPDU. The device may send the HE TB NDP feedback PPDU to the second device in the 20 MHz sub-channel, wherein the HE TB NDP feedback PPDU includes the tones.

    ENHANCED TONE ALLOCATION
    6.
    发明申请
    ENHANCED TONE ALLOCATION 有权

    公开(公告)号：US20210119673A1

    公开(公告)日：2021-04-22

    申请号：US17134395

    申请日：2020-12-26

    申请人： Xiaogang Chen ,  Qinghua Li ,  Feng Jiang ,  Assaf ,  Shlomi Vituri

    发明人： Xiaogang Chen ,  Qinghua Li ,  Feng Jiang ,  Assaf ,  Shlomi Vituri

    IPC分类号： H04B7/0452 ,  H04W72/12

    摘要： This disclosure describes systems, methods, and devices related to enhanced tone allocation. A device may schedule a number of station devices to be included in a physical layer (PHY) protocol data unit (PPDU) for a multiple-user multiple-input multiple-output (MU-MIMO) transmission. The device may limit a number of resource units (RUs) to be used in the PPDU for the MU-MIMO transmission. The device may use a minimum RU size to be at least 242 tones for the MU-MIMO transmission. The device may cause to send the PPDU to the number of station devices.

    ENHANCED CONSTELLATION SHAPING
    8.
    发明申请
    ENHANCED CONSTELLATION SHAPING 有权

    公开(公告)号：US20210091991A1

    公开(公告)日：2021-03-25

    申请号：US17112916

    申请日：2020-12-04

    申请人： Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen

    发明人： Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen

    IPC分类号： H04L27/34 ,  H04L25/03 ,  H04L27/26 ,  H04L1/00

    摘要： This disclosure describes systems, methods, and devices related to enhanced constellation shaping. A device may generate payload bits associated with a frame to be sent to a first station device. The device may generate a first output bits having a first length based on the application of a first mask of one or more masks to the payload bits. The device may generate a second output bits having a second length based on the application of a second mask of the one or more masks. The device may compare the first length of the first output bits to the second length of the second output bits. The device may select the first mask or the second mask based on the comparison. The device may convert the payload bits using the selected mask before passing through a shaping encoder to generate shaped bits. The device may cause to send the frame bits and an indication of the selected mask to the first station device.

    PEAK RATE ENHANCEMENT FOR CONSTELLATION SHAPING
    9.
    发明申请
    PEAK RATE ENHANCEMENT FOR CONSTELLATION SHAPING 有权

    公开(公告)号：US20210091886A1

    公开(公告)日：2021-03-25

    申请号：US17110611

    申请日：2020-12-03

    申请人： Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen

    发明人： Yaron Yoffe ,  Assaf Gurevitz ,  Elad Meir ,  Shlomi Vituri ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen

    IPC分类号： H04L1/00 ,  H04L27/04

    摘要： This disclosure describes systems, methods, and devices related to enhanced constellation shaping. A device may generate payload bits associated with a frame, wherein the payload bits comprise a first portion and a second portion. The device may send the first portion of the payload bits through a shaping encoder. The device may generate shaped bits from the shaping encoder. The device may determine a number of amplitude bits based on the shaped bits. The device may generate parity bits from the shaped bits and the second portion going through an low-density parity-check (LDPC) encoder. The device may select sign bits comprising the second portion and a first subset of the parity bits. The device may send the amplitude bits with the sign bits to a modulator before transmitting the frame to a first station device.