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公开(公告)号：US10447519B2
公开(公告)日：2019-10-15
申请号：US16011315
申请日：2018-06-18
发明人： Lei Huang , Yoshio Urabe , Michael Hong Cheng Sim
摘要： 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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公开(公告)号：US12088449B2
公开(公告)日：2024-09-10
申请号：US17895977
申请日：2022-08-25
发明人： Lei Huang , Michael Hong Cheng Sim , Yoshio Urabe
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L27/2602 , H04L27/2603 , H04L27/2613
摘要： 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：US11722349B2
公开(公告)日：2023-08-08
申请号：US17668107
申请日：2022-02-09
发明人： Lei Huang , Michael Hong Cheng Sim , Yoshio Urabe
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L27/2602 , H04L27/2603 , H04L27/2613
摘要： 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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14.发明授权公开(公告)号：US11689406B2
公开(公告)日：2023-06-27
申请号：US17558367
申请日：2021-12-21
发明人： Lei Huang , Yoshio Urabe , Michael Hong Cheng Sim
CPC分类号： 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
摘要： 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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公开(公告)号：US11627029B2
公开(公告)日：2023-04-11
申请号：US17884440
申请日：2022-08-09
发明人： Lei Huang , Yoshio Urabe , Michael Hong Cheng Sim
IPC分类号： H04L27/26 , H04B7/0452 , H04L1/00 , H04L5/00 , H04W72/12
摘要： An transmission apparatus of the present disclosure comprises 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, 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 unit (RU) allocation information and a user-specific field that carries per-user allocation information for 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, in operation, transmits the generated transmission signal.
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公开(公告)号：US20220393923A1
公开(公告)日：2022-12-08
申请号：US17884440
申请日：2022-08-09
发明人： Lei Huang , Yoshio Urabe , Michael Hong Cheng Sim
IPC分类号： H04L27/26 , H04L5/00 , H04B7/0452 , H04L1/00 , H04W72/12
摘要： An transmission apparatus of the present disclosure comprises 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, 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 unit (RU) allocation information and a user-specific field that carries per-user allocation information for 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, in operation, transmits the generated transmission signal.
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17.发明授权公开(公告)号：US11129207B2
公开(公告)日：2021-09-21
申请号：US16750345
申请日：2020-01-23
IPC分类号： H04W74/08 , H04L27/26 , H04L5/00 , H04W28/02 , H04W72/12 , H04L12/18 , H04L12/58 , H04L12/40 , H04L12/865 , H04W72/04
摘要： 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：US20200221341A1
公开(公告)日：2020-07-09
申请号：US16818691
申请日：2020-03-13
IPC分类号： H04W28/06 , H03M13/00 , H04L27/26 , H04L5/00 , H04L1/00 , H04L1/06 , H04L29/08 , H04L29/06 , H03M13/11 , H04W84/12
摘要： 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：US10660125B2
公开(公告)日：2020-05-19
申请号：US15970274
申请日：2018-05-03
IPC分类号： H04W74/00 , H04W72/00 , H04L12/851 , H04W48/16 , H04W74/08 , H04W48/12 , H04L5/00 , H04W72/04 , H04W72/12 , H04W84/12
摘要： A base station apparatus that performs a wireless communication with a plurality of wireless terminal apparatuses according to IEEE802.11, including a frame generator that generates one or more first frames, each first frame including information indicating that a TXOP period assigned for communication with one of the plurality of wireless terminal apparatuses has expired and an additionally added Beacon element including information associated with the base station apparatus, and a transmitter that transmits the generated one or more first frames to the plurality of wireless terminal apparatuses.
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20.发明授权公开(公告)号：US12107713B2
公开(公告)日：2024-10-01
申请号：US18316077
申请日：2023-05-11
发明人： Lei Huang , Yoshio Urabe , Michael Hong Cheng Sim
CPC分类号： 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
摘要： 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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