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公开(公告)号：US20160365914A1
公开(公告)日：2016-12-15
申请号：US15248388
申请日：2016-08-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huajiong Lin , Weimin Chen , Zhengzheng Li , Qing Wang
Abstract: A method for reducing adjacent-channel interference includes: obtaining, by a receiver, a first analog signal from a radio frequency front-end of a transmitter, where the first analog signal is a signal transmitted by the transmitter to the outside, and the signal transmitted by the transmitter to the outside forms a self-interference signal at an antenna of the receiver; performing analog-to-digital conversion on the first analog signal so as to obtain a first digital signal; receiving, by the receiver, a second analog signal, where the second analog signal includes a wanted signal and the self-interference signal; performing analog-to-digital conversion on the second analog signal so as to obtain a second digital signal; and performing digital cancellation on the second digital signal and the first digital signal so as to obtain a wanted digital signal of the second digital signal.
Abstract translation: 减少相邻信道干扰的方法包括：由接收机从发射机的射频前端获得第一模拟信号，其中第一模拟信号是由发射机发射到外部的信号，信号 由发射机发送到外部在接收机的天线处形成自干扰信号; 对所述第一模拟信号执行模数转换，以获得第一数字信号; 由接收机接收第二模拟信号，其中第二模拟信号包括有用信号和自干扰信号; 对所述第二模拟信号执行模数转换，以获得第二数字信号; 以及对所述第二数字信号和所述第一数字信号执行数字消除以获得所述第二数字信号的有用数字信号。
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公开(公告)号：US20180123666A1
公开(公告)日：2018-05-03
申请号：US15858983
申请日：2017-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Weimin Chen , Li Wen , Zhengzheng Li , Lu Guan , Huaizhi Zhang
CPC classification number: H04B7/0617 , H04B17/11 , H04B17/21 , H04B17/309 , H04L25/0204 , H04L25/0224 , H04W40/16
Abstract: A joint channel correction method, an apparatus, and a system are disclosed. The joint channel correction method includes: sending a first joint channel correction instruction to a first RRU; sending a second joint channel correction instruction to a second RRU; receiving a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in X2 traffic channels; receiving a result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels and/or the X2 traffic channels through calculation. Technical solutions provided by embodiments of the present application help implement channel correction between RRUs without a channel self-correction function.
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公开(公告)号：US10056962B2
公开(公告)日：2018-08-21
申请号：US15248388
申请日：2016-08-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huajiong Lin , Weimin Chen , Zhengzheng Li , Qing Wang
Abstract: A method for reducing adjacent-channel interference includes: obtaining, by a receiver, a first analog signal from a radio frequency front-end of a transmitter, where the first analog signal is a signal transmitted by the transmitter to the outside, and the signal transmitted by the transmitter to the outside forms a self-interference signal at an antenna of the receiver; performing analog-to-digital conversion on the first analog signal so as to obtain a first digital signal; receiving, by the receiver, a second analog signal, where the second analog signal includes a wanted signal and the self-interference signal; performing analog-to-digital conversion on the second analog signal so as to obtain a second digital signal; and performing digital cancellation on the second digital signal and the first digital signal so as to obtain a wanted digital signal of the second digital signal.
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公开(公告)号：US10320464B2
公开(公告)日：2019-06-11
申请号：US15858983
申请日：2017-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Weimin Chen , Li Wen , Zhengzheng Li , Lu Guan , Huaizhi Zhang
Abstract: A joint channel correction method, an apparatus, and a system are disclosed. The joint channel correction method includes: sending a first joint channel correction instruction to a first RRU; sending a second joint channel correction instruction to a second RRU; receiving a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in X2 traffic channels; receiving a result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels and/or the X2 traffic channels through calculation. Technical solutions provided by embodiments of the present application help implement channel correction between RRUs without a channel self-correction function.
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