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公开(公告)号：US10284256B2
公开(公告)日：2019-05-07
申请号：US15586579
申请日：2017-05-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Zhou , Xiang Wang
Abstract: Embodiments of the present invention provide a nonlinear precoding bit loading method, a transmit end, a receive end, and a system. The method includes: determining, power control factors of multiple preset quantities of bits; obtaining, a first correspondence between the multiple preset quantities of bits and signal to noise ratios without power control; determining, a second correspondence between the multiple preset quantities of bits and signal to noise ratios with power control according to the power control factors and the first correspondence; and after actually measuring a signal to noise ratio with power control on a subcarrier, determining, according to the second correspondence, a preset quantity of bits corresponding to the actually measured signal to noise ratio with power control, using the determined preset quantity of bits as an actual bit loading quantity of the subcarrier, and notifying a transmit end of the actual bit loading quantity.
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公开(公告)号：US10263664B2
公开(公告)日：2019-04-16
申请号：US15495781
申请日：2017-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanglin Sun , Bin Zhou , Shicai Chen
Abstract: Embodiments of the present invention provide a signal transmission method. The method includes: sequentially rotating phases of to-be-sent signals on a line set 1 by different angles and in relative to phases of to-be-sent signals on a line set 2, and sequentially sending, to a user side, the to-be-sent signals whose phases are rotated. The method also includes receiving a rotation factor that is of a high-quality received signal on the line set 1 and that is fed back by the user side, where the high-quality received signal includes a received signal with a high signal-to-noise ratio or high power. The method also includes using the rotation factor fed back by the user side as a fixed rotation factor, and rotating, according to the fixed rotation factor, a phase of a signal to be subsequently sent on the line set 1.
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公开(公告)号：US20170230078A1
公开(公告)日：2017-08-10
申请号：US15495781
申请日：2017-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fanglin Sun , Bin Zhou , Shicai Chen
CPC classification number: H04B3/32 , H04B3/487 , H04L12/2869 , H04M11/06 , H04M11/062
Abstract: Embodiments of the present invention provide a signal transmission method. The method includes: sequentially rotating phases of to-be-sent signals on a line set 1 by different angles and in relative to phases of to-be-sent signals on a line set 2, and sequentially sending, to a user side, the to-be-sent signals whose phases are rotated. The method also includes receiving a rotation factor that is of a high-quality received signal on the line set 1 and that is fed back by the user side, where the high-quality received signal includes a received signal with a high signal-to-noise ratio or high power. The method also includes using the rotation factor fed back by the user side as a fixed rotation factor, and rotating, according to the fixed rotation factor, a phase of a signal to be subsequently sent on the line set 1.
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公开(公告)号：US10082812B2
公开(公告)日：2018-09-25
申请号：US15400777
申请日：2017-01-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Zhou , Vladimir Koifman
Abstract: A low dropout voltage regulator includes: a pass element connected between an input terminal and an output terminal of the low dropout voltage regulator; an error amplifier driving a control terminal of the pass element; a first compensation element connected to the output terminal of the low dropout voltage regulator; and a compensation circuit connected to a control terminal (of the first compensation element, wherein the compensation circuit is configured to control a trans-conductance of the first compensation element in accordance with a noise compensation criterion.
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