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公开(公告)号：US20180054329A1
公开(公告)日：2018-02-22
申请号：US15795577
申请日：2017-10-27
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L25/02
CPC classification number: H04L25/0202 , H04B7/0413 , H04L25/0212 , H04L27/2613 , H04L27/2663 , H04L27/2692 , H04L27/2695
Abstract: A method includes receiving, by two receivers respectively, a first channel estimation sequence from a first transmitter and a second channel estimation sequence from a second transmitter, where the second channel estimation sequence is a sequence that is orthogonal to the first channel estimation sequence and an auto-correlation function is an impulse function when channels are estimated thereby signals obtained based on auto-correlation of the first channel estimation sequence and on auto-correlation of the second channel estimation sequence are impulse signals, and a convolution between the first channel estimation sequence and the second channel estimation sequence is 0.
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Patent Agency Ranking
公开(公告)号：US20230239116A1
公开(公告)日：2023-07-27
申请号：US18152351
申请日：2023-01-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ningjuan Wang , Xin Xue , Min Yan , Jian Yu
IPC: H04L5/00 , H04B7/00 , H04W56/00 , H04L65/611 , H04B7/24
CPC classification number: H04L5/0053 , H04B7/00 , H04W56/005 , H04L65/611 , H04B7/24 , H04W84/12
Abstract: A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.
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公开(公告)号：US11569962B2
公开(公告)日：2023-01-31
申请号：US17124710
申请日：2020-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ningjuan Wang , Xin Xue , Min Yan , Jian Yu
Abstract: A data communication method and a related apparatus are provided, and the data communication method includes: constructing, by an access device, a beacon frame, where the beacon frame includes a newly added field, and the newly added field represents multiple data guard interval lengths supported by the access device; and broadcasting, by the access device, the beacon frame, so that a terminal selects an available guard interval length matching a data guard interval length supported by the terminal from the beacon frame, and performs data communication with the access device by using the available guard interval length. By using the present invention, data communication between the access device and the terminal can be implemented when the access device supports multiple data guard interval lengths.
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公开(公告)号：US10756865B2
公开(公告)日：2020-08-25
申请号：US16115296
申请日：2018-08-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xin Xue , Ju Cao , Le Liu , Ningjuan Wang , Wei Lin
IPC: H04L5/00 , H04L27/26 , H04L25/03 , H04B7/0452
Abstract: A pilot sequence sending method and apparatus are provided. In the disclosure, after first-time masking is performed on a pilot sequence based on a cyclic orthogonal matrix, second-time masking is performed on the pilot sequence on which first-time masking has been performed, so that a PAPR of the pilot sequence on which second-time masking has been performed is less than a PAPR of the pilot sequence on which first-time masking has been performed, and further, orthogonality of the pilot sequence on which second-time masking has been performed can be higher than that of the pilot sequence on which first-time masking has been performed. This ensures accuracy of channel estimation and frequency offset detection.
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25.发明授权公开(公告)号：US10219258B2
公开(公告)日：2019-02-26
申请号：US15483811
申请日：2017-04-10
Applicant: Huawei Technologies Co., Ltd.
Abstract: In an uplink service transmission method, an access point divides an entire channel into resource blocks according to a quantity of stations that are connected to the access point, then allocates, to each station according to channel estimation information of each station, a resource block used to transmit uplink information, and separately sends channel allocation indication information to each station, so that each station finds, according to the channel allocation indication information, the resource block corresponding to the station, and transmits the uplink information by using the resource block, so as to implement that in an OFDMA system, multiple stations transmit uplink information in parallel, that is, resource blocks that are obtained by means of division can be simultaneously applicable to multiple stations.
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26.发明申请公开(公告)号：US20170251439A1
公开(公告)日：2017-08-31
申请号：US15594192
申请日：2017-05-12
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W52/52 , H03G3/3078 , H04B17/318 , H04L27/2607 , H04L27/2613 , H04L27/2678 , H04L69/22 , H04L69/323 , H04W84/12
Abstract: Embodiments disclose an automatic gain control method and a communications device in a wireless local area network. The method includes generating a physical layer packet, where the physical layer packet includes a high efficiency long training field, the high efficiency long training field includes N symbols, a length of a cyclic prefix (CP— of a first symbol in the N symbols is greater than or equal to a minimum length required by a receiver device to perform automatic gain control (AGC) estimation, and N is a positive integer. The method also includes sending the physical layer packet to the receiver device.
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