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公开(公告)号：US20210067394A1
公开(公告)日：2021-03-04
申请号：US17018769
申请日：2020-09-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meilu LIN , Sheng LIU , Wei LIN , Jian YU , Le LIU , Xun YANG , Shimon SHILO , Doron EZRI , Genadiy TSODIK , Oded REDLICH
Abstract: Embodiments of the present invention provide a physical layer protocol data unit PPDU transmission method and a corresponding PPDU transmission apparatus. Application of the method and apparatus in the embodiments of the present invention enables a receive end to quickly determine the starting position of the feature signal sequence by means of blind detection, and ensures that the receive end quickly completes data processing and status switching.
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公开(公告)号：US20200344104A1
公开(公告)日：2020-10-29
申请号：US16870570
申请日：2020-05-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei LIN , Xin XUE , Ningjuan WANG , Le LIU
Abstract: An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.
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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：US20180309607A1
公开(公告)日：2018-10-25
申请号：US16017083
申请日：2018-06-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Genadiy TSODIK , Ningjuan WANG , Jian YU , Xin XUE , Shimon SHILO , Doron EZRI , Oded REDLICH , Le LIU , Wei LIN
Abstract: The present application provides a method for determining a CP. A STA performs channel estimation, determines a CP value according to the result of channel estimation, and sends indication information to an AP, wherein the indication information is used for indicating the CP value, so that the AP may choose a suitable CP according to the indication information. Therefore, overhead may be reduced and system throughput may be optimized.
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公开(公告)号：US20180092123A1
公开(公告)日：2018-03-29
申请号：US15819048
申请日：2017-11-21
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：US20170201944A1
公开(公告)日：2017-07-13
申请号：US15471768
申请日：2017-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei LIN , Le LIU , Jun ZHU , Weishan LU
CPC classification number: H04W52/0229 , H04L5/0048 , H04L5/0053 , H04L27/2613 , H04W84/12 , Y02D70/142 , Y02D70/144 , Y02D70/146
Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN. In embodiments of the disclosure, a cycle of a high-efficiency short training field sequence used for performing stage-2 AGC adjustment in the WLAN may be increased, and a maximum CSD value that can be used is further increased.
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17.发明申请公开(公告)号：US20170201906A1
公开(公告)日：2017-07-13
申请号：US15472887
申请日：2017-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Le LIU , Yi LUO , Guido MONTORSI , Sergio BENEDETTO
CPC classification number: H04W28/065 , H04L27/2607 , H04L27/2613 , H04W84/12
Abstract: Embodiments of the present invention disclose a frame transmission method for a wireless local area network and a wireless local area network apparatus, and relate to the field of communications technologies. According to the present invention, in a frame transmission process in a WLAN, a frame sent by a wireless local area network WLAN apparatus is received, and the frame of a particular standard is recognized by detecting a user common signal field included in the frame, so that backward compatibility of a WLAN apparatus is implemented, and hybrid networking of WLAN apparatuses of different standards can be supported, thereby improving flexibility of network deployment, and reducing complexity of networking.
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公开(公告)号：US20170141888A1
公开(公告)日：2017-05-18
申请号：US15418462
申请日：2017-01-27
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L5/0023 , H04B1/707 , H04L25/0204 , H04L27/2634 , H04W84/12
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：US20230400650A1
公开(公告)日：2023-12-14
申请号：US18455892
申请日：2023-08-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhongxing WANG , Bo YAN , Fei YU , Le LIU
CPC classification number: G02B6/4293 , G02B6/3825 , G02B6/3849
Abstract: An optical connector has a first connection end configured to fit with a peer adapter. The electrical connector has a second connection end configured to fit with the peer adapter. The first connection end and the second connection end have a same opening direction. In addition, the first connection end may slide along a plugging direction of the peer adapter relative to the second connection end. The first connection end is configured to be connected to the peer adapter before the second connection end. The optical connector is connected to the peer adapter before the electrical connector. This ensures that a channel for transmitting an optical signal is communicated before a channel for transmitting an electrical signal is communicated, thereby avoiding fiber burning and improving security and reliability of the opto-electronic adapter during use.
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公开(公告)号：US20230116985A1
公开(公告)日：2023-04-20
申请号：US17891934
申请日：2022-08-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L5/00 , H04W28/00 , H04W72/23 , H04B7/0452 , H04W72/0453 , H04W72/12
Abstract: Embodiments provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).
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