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公开(公告)号：US20190268115A1
公开(公告)日：2019-08-29
申请号：US16412117
申请日：2019-05-14
Applicant: Huawei Technologies Co., Ltd.
Abstract: A transmission device includes: an acquiring unit acquires LTF parameters, and acquires a start position I of allocated subcarriers, where the LTF parameters include a frequency domain transform parameter and a time domain transform parameter that are required for generating an LTF sequence; a frequency domain transform unit performs, according to the frequency domain transform parameter and the start position I, a frequency domain transform on an LTF basic sequence to obtain an LTF symbol; a time domain transform unit performs, according to the time domain transform parameter, a time domain transform on the LTF symbol to obtain the LTF sequence; and a sending unit adds the LTF sequence to a first data frame, and sends the first data frame to a second device, so that the second device determines the LTF basic sequence according to the LTF sequence and performs channel estimation according to the LTF basic sequence.
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公开(公告)号：US20180139696A1
公开(公告)日：2018-05-17
申请号：US15870137
申请日：2018-01-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanchun LI , Zhou LAN , Yunbo LI
CPC classification number: H04W52/0206 , H04W24/02 , H04W28/0221 , H04W28/20 , H04W36/08 , H04W72/04 , H04W76/22 , Y02D70/00 , Y02D70/142 , Y02D70/26
Abstract: This application provides a data transmission method. When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
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公开(公告)号：US20170104564A1
公开(公告)日：2017-04-13
申请号：US15382168
申请日：2016-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng LIU , Zhou LAN , Teyan CHEN
CPC classification number: H04L5/0044 , H04L1/0003 , H04L5/0053 , H04L25/02 , H04L27/20 , H04W84/12
Abstract: Embodiments of the present invention disclose a frame transmission method and an apparatus for a wireless local area network, which relate to the field of communications technologies. In the present invention, in a WLAN frame transmission process, a frame sent by a wireless local area network WLAN device is received, and identification of frames of different standards is completed by detecting a format indication field included in the frame, so as to implement backward compatibility of the WLAN device, so that hybrid networking of WLAN devices of different standards can be supported, flexibility of network deployment is improved, and networking complexity is reduced.
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公开(公告)号：US20170303196A1
公开(公告)日：2017-10-19
申请号：US15637424
申请日：2017-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W52/0212 , H04W24/08 , H04W28/20 , H04W52/0229 , H04W52/50 , H04W72/04 , H04W72/0493 , H04W74/0808 , H04W84/12 , Y02D70/142
Abstract: A data transmission method, including: determining, according to a maximum power value detected by performing a CCA on a primary channel in one or more processing time periods, a power value interval to which the maximum power value detected by performing the CCA belongs, where the determined power value interval is one of one or more power value intervals that do not overlap each other; obtaining a transmit power spectral density according to the determined power value interval, where there is a one-to-one correspondence between the one or more power value intervals and one or more transmit power spectral densities; and when a TXOP is obtained, performing data transmission on a transmission channel by using a power spectral density that is not greater than the transmit power spectral density.
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公开(公告)号：US20220376963A1
公开(公告)日：2022-11-24
申请号：US17751155
申请日：2022-05-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present invention discloses a data transmission method, apparatus, and system, and an access point. The method includes: transceiving data of a data portion in an uplink OFDMA PPDU scheduled by an access point AP on a corresponding allocated frequency resource unit RU, determining one or more fundamental channel units on which the allocated frequency resource unit RU is located, and transceiving at least some fields in a common signaling portion in the uplink OFDMA PPDU on the determined one or more fundamental channels. In this way, one or more fundamental channels for transceiving at least some fields in a common signaling portion in an uplink OFDMA PPDU are determinate, and another user can transceive data on another idle fundamental channel, thereby improving channel utilization. In addition, multiple users can simultaneously transceive data on multiple fundamental channels, thereby improving a service transmission rate.
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Patent Agency Ranking
公开(公告)号：US20220256455A1
公开(公告)日：2022-08-11
申请号：US17730990
申请日：2022-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanchun LI , Zhou LAN , Yunbo LI
Abstract: When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
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公开(公告)号：US20170208626A1
公开(公告)日：2017-07-20
申请号：US15473357
申请日：2017-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo LI , Zhou LAN , Yanchun LI
IPC: H04W74/08
CPC classification number: H04W74/0808 , H04W74/08 , H04W84/12
Abstract: Embodiments of the present application disclose a multichannel access method, including: obtaining a transmission opportunity TXOP of a first reserved channel; sensing a non-reserved channel other than the first reserved channel in a preset time segment in the TXOP, and if the non-reserved channel is in an idle state, using the non-reserved channel as a second reserved channel; and when an ending moment of the preset time segment is reached, sending a current data frame on the first reserved channel and the second reserved channel. Correspondingly, the embodiments of the present application further disclose a multichannel access apparatus. Channel utilization can be improved by implementing the embodiments of the present application.
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公开(公告)号：US20200329491A1
公开(公告)日：2020-10-15
申请号：US16913342
申请日：2020-06-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present invention discloses a data transmission method, apparatus, and system, and an access point. An example method includes: transceiving data of a data portion in an uplink OFDMA PPDU scheduled by an access point AP on a corresponding allocated frequency resource unit RU, determining one or more fundamental channel units on which the allocated frequency resource unit RU is located, and transceiving at least some fields in a common signaling portion in the uplink OFDMA PPDU on the determined one or more fundamental channels. In some implementations, one or more fundamental channels for transceiving at least some fields in a common signaling portion in an uplink OFDMA PPDU are determinate, and another user can transceive data on another idle fundamental channel, thereby improving channel utilization. In addition, multiple users can simultaneously transceive data on multiple fundamental channels, thereby improving a service transmission rate.
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公开(公告)号：US20200260375A1
公开(公告)日：2020-08-13
申请号：US16862434
申请日：2020-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanchun LI , Zhou LAN , Yunbo LI
Abstract: This application provides a data transmission method. When performing data transmission with a first station in a bandwidth power saving mode by using an operating channel of the first station, an access point performs data transmission with a second station by using an operating channel of the second station. Therefore, even if the operating channel of the first station includes a primary channel, the access point can still perform data transmission with the second station by using another channel. Further, for the access point, although the operating channel of the first station occupies only a part of available bandwidth resources of the access point, the access point can still perform data transmission with the second station by using a remaining channel.
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公开(公告)号：US20190387542A1
公开(公告)日：2019-12-19
申请号：US16453596
申请日：2019-06-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbo LI , Zhou LAN , Yanchun LI
IPC: H04W74/08
Abstract: Embodiments of the present application disclose a multichannel access method, including: obtaining a transmission opportunity TXOP of a first reserved channel; sensing a non-reserved channel other than the first reserved channel in a preset time segment in the TXOP, and if the non-reserved channel is in an idle state, using the non-reserved channel as a second reserved channel; and when an ending moment of the preset time segment is reached, sending a current data frame on the first reserved channel and the second reserved channel. Correspondingly, the embodiments of the present application further disclose a multichannel access apparatus. Channel utilization can be improved by implementing the embodiments of the present application.
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