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公开(公告)号：US20190173729A1
公开(公告)日：2019-06-06
申请号：US16252200
申请日：2019-01-18
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L27/36 , H04L27/26 , H04L5/00 , H04B7/0456
Abstract: A signal transmission method includes: combining a plurality of low-order modulated signals into N modulated signals; and transmitting the N modulated signals on N subcarriers, where the N subcarriers are subcarriers on frequency domain resources of M channels, an nth modulated signal in the N modulated signals is transmitted on an nth subcarrier in the N subcarriers, N is an integer greater than or equal to 2, M is an integer greater than or equal to 2, and n=1, 2, . . . , N. The signal transmission method can improve efficiency of a diversity gain.
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公开(公告)号：US20180254938A1
公开(公告)日：2018-09-06
申请号：US15971100
申请日：2018-05-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao WU
IPC: H04L27/26 , H04L27/227 , H04L27/00 , H04L27/38
CPC classification number: H04L27/2666 , H04L5/0007 , H04L27/0014 , H04L27/06 , H04L27/2276 , H04L27/2621 , H04L27/2646 , H04L27/2672 , H04L27/2675 , H04L27/3872 , H04L2027/0048
Abstract: Embodiments of the present disclosure relate to an OFDM-based data transmission method and an apparatus. In one example method, a transmitting device generates a data packet. The data packet comprises at least one orthogonal frequency division multiplexing (OFDM) symbol. The OFDM symbol comprises N sequentially numbered subcarriers. The N subcarriers are divided into L subblocks. Each subblock of the L subblocks comprises └N/L┘ subcarriers including M pilot subcarriers. Start subcarriers of adjacent subblocks are adjacently numbered subcarriers. A numbering interval is the same for adjacent subcarriers in each subblock of the L subblocks. Each subblock of the L subblocks corresponds to one phase rotation signal. Signals carried on the subcarriers in each subblock of the L subblocks are signals obtained by multiplying original signals by a corresponding phase rotation signal. The transmitting device sends the data packet.
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23.发明申请公开(公告)号：US20170111893A1
公开(公告)日：2017-04-20
申请号：US15394301
申请日：2016-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Weishan LU , Tao WU
CPC classification number: H04W72/042 , H04L1/16 , H04L1/1854 , H04L1/1861 , H04L1/1864 , H04L5/0023 , H04L5/0055 , H04L5/0092 , H04W72/0446 , H04W72/0453 , H04W84/12
Abstract: Embodiments of the present invention disclose a communication method: sending indication information to two or more user equipments, where the indication information includes timeslot indication information and frequency band indication information of the two or more user equipments, at least two user equipments in the two or more user equipments have same timeslot indication information, and the user equipments that have the same timeslot indication information have different frequency band indication information; and obtaining an acknowledgment frame sent by one or more user equipments of the two or more user equipments in a timeslot indicated by respective timeslot indication information and by using a frequency band indicated by respective frequency band indication information. The present invention is used for acknowledgment frame sending.
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24.发明申请公开(公告)号：US20150249488A1
公开(公告)日：2015-09-03
申请号：US14707618
申请日：2015-05-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao WU , Weishan LU
CPC classification number: H04B7/0413 , H01Q19/32 , H01Q21/00 , H04B7/0617 , H04B7/0632
Abstract: The present application discloses an array antenna, a method and a device for transmitting and receiving a signal. The array antenna includes at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, respective parasitic antennas are respectively coupled to controllable loads, and the controllable loads are respectively coupled to a control circuit. With the arrangement of at least two active antennas, when a channel is in a good state, channel capacity can be adjusted by adjusting the controllable loads coupled to the parasitic antennas; and when the channel is not in the good state, the bit error ratio can be reduced by both adjusting the controllable loads coupled to the parasitic antennas and adjusting transmitting directional diagrams of the active antennas according to an adjustment vector, meanwhile, miniaturization can also be realized.
Abstract translation: 本申请公开了一种用于发送和接收信号的阵列天线，方法和装置。 阵列天线包括至少两个有源天线，其中每个有源天线由至少两个不同的寄生天线包围，相应的寄生天线分别耦合到可控负载，并且可控负载分别耦合到控制电路。 利用至少两个有源天线的布置，当信道处于良好状态时，可以通过调整耦合到寄生天线的可控负载来调整信道容量; 并且当通道不处于良好状态时，通过调整耦合到寄生天线的可控负载并根据调整向量调整有源天线的发送方向图，可以减小误比特率，同时小型化也可以 实现了
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