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公开(公告)号：US20250031214A1
公开(公告)日：2025-01-23
申请号：US18904753
申请日：2024-10-02
Inventor： LEI HUANG , HONG CHENG MICHAEL SIM , YOSHIO URABE , ISAMU YOSHII
Abstract: A transmission apparatus comprises an assignment information generator which, in operation, assigns resources on a resource unit (RU) basis to one or more terminal stations (STAs) and generates assignment information that specifies RUs allocated to the one or more STAs; a transmission signal generator which, in operation, 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 that carry a set ID and the assignment information, and wherein the set ID identifies one assignment set comprising the one or more STAs and a plurality of assignment indices, and wherein the assignment information comprises a resource assignment indication for each of a plurality of assignment which are referenced by the plurality of assignment indices; and a transmitter which, in operation, transmits the generated transmission signal.
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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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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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4.发明申请公开(公告)号：US20180332627A1
公开(公告)日：2018-11-15
申请号：US16029164
申请日：2018-07-06
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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公开(公告)号：US20180212811A1
公开(公告)日：2018-07-26
申请号：US15933173
申请日：2018-03-22
Inventor： LEI HUANG , MICHAEL HONG CHENG SIM , YOSHIO URABE
IPC: H04L27/26
CPC classification number: H04L27/2647 , H04L27/2602 , H04L27/2613
Abstract: A transmission apparatus of the present disclosure comprises a packet generator which, in operation, generates a packet and a transmitter which, in operation, transmits the generated packet. The packet includes a legacy short training field, a legacy long training field, a legacy signal field (L-SIG), a repeated legacy signal field (RL-SIG), a first non-legacy signal field, a second non-legacy signal field, a non-legacy short training field, a non-legacy long training field and a data field, wherein the second non-legacy signal field is optionally present. The packet generator generates the packet by configuring the RL-SIG in different ways according to a presence or absence of the second non-legacy signal field in the packet.
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Patent Agency Ranking
公开(公告)号：US20170318621A1
公开(公告)日：2017-11-02
申请号：US15653223
申请日：2017-07-18
Inventor： MASATAKA IRIE , LEI HUANG , HONG CHENG MICHAEL SIM
CPC classification number: H04W84/12 , H04B7/0623 , H04L5/0053 , H04L5/0073 , H04L5/0091 , H04L47/50 , H04W16/14 , H04W28/06 , H04W40/24 , H04W48/12 , H04W72/0453 , H04W72/08 , H04W72/1289 , H04W74/04
Abstract: There is provided a communication method for a coordinator communication device, including generating a first scheduling element to be used by a first communication device and a second scheduling element to be used by a second communication device; and transmitting the first and second scheduling elements to the first and second communication devices. The second scheduling element includes a second allocation indicating a time-frequency resource allocated to the second communication device. The first scheduling element includes a first allocation indicating a time-frequency resource allocated to the first communication device and optionally includes a first virtual allocation that is a duplicate of the second allocation. The first communication device performs communication in accordance with a first communication system using a first frequency band, and the second communication device performs communication in accordance with the first communication system or a second communication system using a second frequency band that includes the first frequency band.
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公开(公告)号：US20170280354A1
公开(公告)日：2017-09-28
申请号：US15619081
申请日：2017-06-09
Inventor： LEI HUANG , MICHAEL HONG CHENG SIM , TAKENORI SAKAMOTO , NAGANORI SHIRAKATA
CPC classification number: H04W28/065 , H03M13/1102 , H03M13/1148 , H03M13/6527 , H04L1/001 , H04L1/005 , H04L1/0057 , H04L1/0058 , H04L1/0081 , H04L1/0631 , H04L5/0091 , H04L27/2602 , H04L27/2613 , H04L69/161 , H04L69/323 , H04W84/12
Abstract: A wireless communication device serving as an NG60 WiGig device includes a PPDU generator that generates an MF control PHY PPDU (physical layer protocol data unit) including a legacy preamble, a legacy header, an NG60 header (a non-legacy header), a data field, and identification information indicating that the non-legacy header is included in the PPDU and a transmitter that transmits the generated MF control PHY PPDU.
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公开(公告)号：US20240396783A1
公开(公告)日：2024-11-28
申请号：US18794826
申请日：2024-08-05
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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公开(公告)号：US20240107550A1
公开(公告)日：2024-03-28
申请号：US18528324
申请日：2023-12-04
Inventor： LEI HUANG , HONG CHENG MICHAEL SIM , YOSHIO URABE , ISAMU YOSHII
CPC classification number: H04W72/23 , H04J11/0069 , H04L1/0046 , H04L5/001 , H04L5/0035 , H04L5/0044 , H04L5/005 , H04L5/0051 , H04L5/0053 , H04L5/0091 , H04L5/0094 , H04W40/24 , H04W74/004 , H04L5/0007
Abstract: A transmission apparatus comprises an assignment information generator which, in operation, assigns resources on a resource unit (RU) basis to one or more terminal stations (STAs) and generates assignment information that specifies RUs allocated to the one or more STAs; a transmission signal generator which, in operation, 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 that carry a set ID and the assignment information, and wherein the set ID identifies one assignment set comprising the one or more STAs and a plurality of assignment indices, and wherein the assignment information comprises a resource assignment indication for each of a plurality of assignment which are referenced by the plurality of assignment indices; and a transmitter which, in operation, transmits the generated transmission signal.
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10.发明公开公开(公告)号：US20230283507A1
公开(公告)日：2023-09-07
申请号：US18316077
申请日：2023-05-11
Inventor： LEI HUANG , YOSHIO URABE , MICHAEL HONG CHENG SIM
CPC classification number: H04L27/2613 , H04L1/00 , H04L1/0041 , H04L1/0083 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04L5/0094 , H04L27/26 , H04L27/2662 , H04L1/0057 , H04L5/0023 , H04L5/0044 , H04L5/0053 , H04L27/2605
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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