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公开(公告)号：US20200169996A1
公开(公告)日：2020-05-28
申请号：US16694695
申请日：2019-11-25
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Xin Xue , Ningjuan Wang , Le Liu , Wei Lin
Abstract: Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11 ax.
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公开(公告)号：US20200153553A1
公开(公告)日：2020-05-14
申请号：US16747368
申请日：2020-01-20
Applicant: Huawei Technologies Co., Ltd.
Abstract: A receiving state indication method for an aggregate-media access control (MAC) protocol data unit (A-MPDU) and a receiving device, to indicate a receiving state of an A-MPDU including a MAC service data unit (MSDU) fragment. The method includes receiving, by a receive end, an A-MPDU sent by a transmit end; and when determining that at least one MAC protocol data unit (MPDU) in the A-MPDU is obtained by encapsulating a fragment of an MSDU, sending, by the receive end to the transmit end, an acknowledgement frame used to indicate a receiving state of the A-MPDU, where the acknowledgement frame includes a fragment indication field and a receiving state field.
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公开(公告)号：US10638508B2
公开(公告)日：2020-04-28
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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14.发明申请公开(公告)号：US20190281626A1
公开(公告)日：2019-09-12
申请号：US16411961
申请日：2019-05-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingpei Lin , Jiayin Zhang , Jun Luo , Le Liu
Abstract: A method includes generating, by an access point (AP), signaling that includes an AP identifier (ID) field, a bandwidth (BW) field, a guard interval (GI) field, a cyclic redundancy check (CRC) field, and a tail field, the AP ID field is used to indicate an ID of the AP, the BW field is used to indicate bandwidth required for data transmission subsequent to the signaling, the GI is used to indicate a length of a cyclic prefix (CP) required for data transmission subsequent to the signaling, the CRC field is used to guard a field before the CRC field in the signaling, and the Tail field is used to empty an encoder and a decoder, where the CRC field and the Tail field are the last two fields of the signaling. The method also includes sending, by the AP, the signaling.
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15.发明授权公开(公告)号：US10390260B2
公开(公告)日：2019-08-20
申请号：US15472887
申请日：2017-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Le Liu , Yi Luo , Guido Montorsi , Sergio Benedetto
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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Patent Agency Ranking
公开(公告)号：US20190223211A1
公开(公告)日：2019-07-18
申请号：US16368300
申请日：2019-03-28
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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公开(公告)号：US20190215813A1
公开(公告)日：2019-07-11
申请号：US16355385
申请日：2019-03-15
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Xin Xue , Ningjuan Wang , Le Liu , Wei Lin
CPC classification number: H04W72/044 , H04L5/0048 , H04L27/2613 , H04L27/262 , H04W84/12
Abstract: Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.
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公开(公告)号：US10341067B2
公开(公告)日：2019-07-02
申请号：US15418462
申请日：2017-01-27
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：US20180270086A1
公开(公告)日：2018-09-20
申请号：US15987174
申请日：2018-05-23
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Wei Lin , Xin Xue , Ningjuan Wang , Le Liu
IPC: H04L25/02
CPC classification number: H04L27/2672 , H04B7/0452 , H04L25/022 , H04L25/0226 , H04L27/2601 , H04L27/261 , H04L27/2614 , H04W24/10 , H04W72/1268 , H04W72/1289 , H04W84/12
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：US20180184408A1
公开(公告)日：2018-06-28
申请号：US15905567
申请日：2018-02-26
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Xin Xue , Ningjuan Wang , Le Liu , Wei Lin
CPC classification number: H04W72/044 , H04L5/0048 , H04L27/2613 , H04L27/262 , H04W84/12
Abstract: Embodiments of the present invention provide several long training sequences that are in a wireless local area network and that comply with 802.11ax.
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