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1.发明申请公开(公告)号：US20200163127A1
公开(公告)日：2020-05-21
申请号：US16750345
申请日：2020-01-23
Inventor： ROJAN CHITRAKAR , YOSHIO URABE , LEI HUANG , MICHAEL HONG CHENG SIM
Abstract: The present disclosure relates to the prioritization of devices taking part in a multi-user random access wireless communication. Based on some known conditions, devices that comply with the conditions are given preferential treatment during the random access period. The preferential treatment may refer to the eligible devices being allowed to access more resource units during the random access, or it may also mean faster access to the medium during the random access. By taking advantage of the methods described in the present disclosure, it is possible to assign higher priority to selected frame types and/or device categories in a multi-user random access wireless communication system.
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2.发明申请公开(公告)号：US20190386864A1
公开(公告)日：2019-12-19
申请号：US16552389
申请日：2019-08-27
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
Abstract: A transmission method comprises: generating a transmission signal including OFDM symbols, wherein the last OFDM symbol of the OFDM symbols can be partitioned into four segments, and wherein the generating includes: computing an initial padding factor value associated with one of the four segments and computing an initial number of OFDM symbols; determining a user with a longest packet duration among plural users; determining a common padding factor value being the initial padding factor value and a common number of OFDM symbols being the initial number of OFDM symbols of the determined user with the longest packet duration; adding pre-FEC padding bits toward one of four possible boundaries of the last OFDM symbol, the one of four possible boundaries being represented by the determined common padding factor value; and adding post-FEC padding bits in remaining segment(s) of the last OFDM symbol; and transmitting the generated transmission signal.
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3.发明申请公开(公告)号：US20180302256A1
公开(公告)日：2018-10-18
申请号：US16011315
申请日：2018-06-18
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
CPC classification number: H04L27/2613 , H04L1/00 , H04L1/0041 , H04L1/0057 , H04L1/0083 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0044 , H04L5/0046 , H04L5/0053 , H04L5/0094 , H04L27/26 , H04L27/2605 , H04L27/2662
Abstract: A transmission method comprises: generating a transmission signal including OFDM symbols, wherein the last OFDM symbol of the OFDM symbols can be partitioned into four segments, and wherein the generating includes: computing an initial padding factor value associated with one of the four segments and computing an initial number of OFDM symbols; determining a user with a longest packet duration among plural users; determining a common padding factor value being the initial padding factor value and a common number of OFDM symbols being the initial number of OFDM symbols of the determined user with the longest packet duration; adding pre-FEC padding bits toward one of four possible boundaries of the last OFDM symbol, the one of four possible boundaries being represented by the determined common padding factor value; and adding post-FEC padding bits in remaining segment(s) of the last OFDM symbol; and transmitting the generated transmission signal.
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4.发明公开公开(公告)号：US20230344693A1
公开(公告)日：2023-10-26
申请号：US18332400
申请日：2023-06-09
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
IPC: H04L27/26 , H04L5/00 , H04W72/20 , H04B7/0452 , H04L1/00
CPC classification number: H04L27/2613 , H04L5/0007 , H04L5/0037 , H04L5/0094 , H04L27/2603 , H04W72/20 , H04B7/0452 , H04L1/0004
Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
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公开(公告)号：US20220417072A1
公开(公告)日：2022-12-29
申请号：US17895977
申请日：2022-08-25
Inventor： LEI HUANG , MICHAEL HONG CHENG SIM , YOSHIO URABE
IPC: H04L27/26
Abstract: A transmission apparatus comprises circuitry that generates a physical protocol data unit (PPDU) that contains a legacy signal field and a first signal field wherein both of the legacy signal field and the first signal field comprise an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and the first signal field is derived from the legacy signal field, and a transmitter, which, in operation, transmits the PPDU. A format of the PPDU is indicated based on whether a part of bits of the first signal field is inverted or not. The format of the PPDU is a first format or a second format, and data subcarriers of the first signal field in the second format have inverted values of corresponding values in the legacy signal field, and pilots of the first signal field in the second format are not inverted and have same values of corresponding values in the legacy signal field.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180219710A1
公开(公告)日：2018-08-02
申请号：US15927733
申请日：2018-03-21
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
Abstract: An transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
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公开(公告)号：US20250055741A1
公开(公告)日：2025-02-13
申请号：US18929205
申请日：2024-10-28
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
IPC: H04L27/26 , H04B7/0452 , H04L1/00 , H04L5/00 , H04W72/20
Abstract: A transmission apparatus of the present disclosure comprises a transmission signal generator which generates a transmission signal that includes a legacy preamble, a non-legacy preamble and a data field, wherein the non-legacy preamble comprises a first signal field and a second signal field, the second signal field comprising a first channel field and a second channel field, each of the first channel field and the second channel field comprising a common field that carries resource assignment information for one or more terminal stations and a user-specific field that carries per-user allocation information for the one or more terminal stations, and wherein a part of the user-specific field of one of the first channel field and the second channel field whichever is longer than the other channel field in length before appending padding bits is relocated to the other channel field; and a transmitter which transmits the generated transmission signal.
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8.发明公开公开(公告)号：US20230319899A1
公开(公告)日：2023-10-05
申请号：US18326872
申请日：2023-05-31
Inventor： ROJAN CHITRAKAR , YOSHIO URABE , LEI HUANG , MICHAEL HONG CHENG SIM
CPC classification number: H04W74/0833 , H04L27/26 , H04L5/0058 , H04L5/0092 , H04W28/0278 , H04W74/0841 , H04W72/21 , H04W72/566 , H04W72/569 , H04L12/1822
Abstract: The present disclosure relates to the prioritization of devices taking part in a multi-user random access wireless communication. Based on some known conditions, devices that comply with the conditions are given preferential treatment during the random access period. The preferential treatment may refer to the eligible devices being allowed to access more resource units during the random access, or it may also mean faster access to the medium during the random access. By taking advantage of the methods described in the present disclosure, it is possible to assign higher priority to selected frame types and/or device categories in a multi-user random access wireless communication system.
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公开(公告)号：US20220166657A1
公开(公告)日：2022-05-26
申请号：US17668107
申请日：2022-02-09
Inventor： LEI HUANG , MICHAEL HONG CHENG SIM , YOSHIO URABE
IPC: H04L27/26
Abstract: A transmission apparatus comprises circuitry that generates a physical protocol data unit (PPDU) that contains a legacy signal field and a first signal field wherein both of the legacy signal field and the first signal field comprise an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and the first signal field is derived from the legacy signal field, and a transmitter, which, in operation, transmits the PPDU. A format of the PPDU is indicated based on whether a part of bits of the first signal field is inverted or not. The format of the PPDU is a first format or a second format, and data subcarriers of the first signal field in the second format have inverted values of corresponding values in the legacy signal field, and pilots of the first signal field in the second format are not inverted and have same values of corresponding values in the legacy signal field.
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10.发明申请公开(公告)号：US20210368549A1
公开(公告)日：2021-11-25
申请号：US17394888
申请日：2021-08-05
Inventor： ROJAN CHITRAKAR , YOSHIO URABE , LEI HUANG , MICHAEL HONG CHENG SIM
Abstract: The present disclosure relates to the prioritization of devices taking part in a multi-user random access wireless communication. Based on some known conditions, devices that comply with the conditions are given preferential treatment during the random access period. The preferential treatment may refer to the eligible devices being allowed to access more resource units during the random access, or it may also mean faster access to the medium during the random access. By taking advantage of the methods described in the present disclosure, it is possible to assign higher priority to selected frame types and/or device categories in a multi-user random access wireless communication system.
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