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1.发明申请公开(公告)号：US20190074905A1
公开(公告)日：2019-03-07
申请号：US16179606
申请日：2018-11-02
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Huaiyu Zeng , Shuchang Yao , Lei Zhou , Xianbo Dai , Shengming Ma , Lin Huang
CPC classification number: H04B10/40 , H04B10/272 , H04B10/6971 , H04J14/08 , H04L1/0045 , H04L25/03019
Abstract: A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stage coupled to the output and comprising: a buffer; a second interpolator coupled to the buffer; and a second equalizer coupled to the second interpolator. A method comprising: receiving an optical burst signal; determining an optimum sampling phase based on a portion of a digital signal representing the optical burst signal; and equalizing all of the digital signal using the optimum sampling phase.
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2.发明授权公开(公告)号：US10469172B2
公开(公告)日：2019-11-05
申请号：US16179606
申请日：2018-11-02
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Huaiyu Zeng , Shuchang Yao , Lei Zhou , Xianbo Dai , Shengming Ma , Lin Huang
Abstract: A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stage coupled to the output and comprising: a buffer; a second interpolator coupled to the buffer; and a second equalizer coupled to the second interpolator. A method comprising: receiving an optical burst signal; determining an optimum sampling phase based on a portion of a digital signal representing the optical burst signal; and equalizing all of the digital signal using the optimum sampling phase.
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公开(公告)号：US10374764B2
公开(公告)日：2019-08-06
申请号：US15625796
申请日：2017-06-16
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Lei Zhou , Huafeng Lin
Abstract: A method and apparatus are provided for wireless channel signals processing. An optical signal carrying an aggregated signal comprising a plurality of wireless channel signals is received over a single optical fiber link and converted into a digital signal and then processed to produce the plurality of wireless channel signals. The plurality of wireless channel signals in the aggregated signal are positioned in different non-overlapping frequency bands that span respective channel bandwidths (BWs), where a first channel BW of the respective channel BWs is different from a second channel BW of the respective channel BW.
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公开(公告)号：US20170288828A1
公开(公告)日：2017-10-05
申请号：US15625796
申请日：2017-06-16
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Lei Zhou , Huafeng Lin
IPC: H04L5/00
CPC classification number: H04L5/0039 , H04L5/001 , H04L27/2636 , H04L27/265 , H04W72/00
Abstract: A method and apparatus are provided for wireless channel signals processing. An optical signal carrying an aggregated signal comprising a plurality of wireless channel signals is received over a single optical fiber link and converted into a digital signal and then processed to produce the plurality of wireless channel signals. The plurality of wireless channel signals in the aggregated signal are positioned in different non-overlapping frequency bands that span respective channel bandwidths (BWs), where a first channel BW of the respective channel BWs is different from a second channel BW of the respective channel BW.
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公开(公告)号：US20150365934A1
公开(公告)日：2015-12-17
申请号：US14528823
申请日：2014-10-30
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Lei Zhou , Huafeng Lin
CPC classification number: H04L5/0039 , H04L5/001 , H04L27/2636 , H04L27/265 , H04W72/00
Abstract: A method implemented by a wireless fronthaul unit, the method comprising aggregating a plurality of first wireless channel signals to produce a first aggregated signal via digital frequency-domain mapping (FDM), wherein the first wireless channel signals are positioned in the first aggregated signal in non-overlapping first frequency bands with unchanged channel bandwidths (BWs), converting the first aggregated signal into a first modulated signal, and transmitting the first modulated signal to a wireless fronthaul link.
Abstract translation: 一种由无线前缀单元实现的方法，所述方法包括聚合多个第一无线信道信号以经由数字频域映射（FDM）产生第一聚合信号，其中所述第一无线信道信号位于所述第一聚合信号中 具有不变信道带宽（BW）的非重叠的第一频带，将第一聚合信号转换为第一调制信号，以及将第一调制信号发送到无线前端链路。
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Patent Agency Ranking
公开(公告)号：US10142024B2
公开(公告)日：2018-11-27
申请号：US15378362
申请日：2016-12-14
Applicant: Futurewei Technologies, Inc.
Inventor： Shuchang Yao , Lei Zhou , Minghui Tao , Xiang Liu , Frank Effenberger
IPC: H04B10/69 , H04B10/2575 , H04B10/27 , H04B10/524 , H04B10/54 , H04L7/033 , H04L25/03
Abstract: An apparatus comprises: a CDR sub-system comprising: an FFE; a decision component coupled to the FFE; a subtractor coupled to the FFE and the decision component; and a tap weight updater coupled to the subtractor and the FFE; and a PR-MLSE component coupled to the CDR sub-system. A method comprises: converting an optical signal with a first modulation format to an analog electrical signal; converting the analog electrical signal to a first digital signal; equalizing the first digital signal into a second digital signal with a second modulation format, wherein the second modulation format has more levels than the first modulation format; and performing CDR on the second digital signal.
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7.发明申请公开(公告)号：US20180287706A1
公开(公告)日：2018-10-04
申请号：US15477754
申请日：2017-04-03
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Huaiyu Zeng , Shuchang Yao , Lei Zhou , Xianbo Dai , Shengming Ma , Lin Huang
CPC classification number: H04B10/40 , H04B10/272 , H04B10/6971 , H04L1/0045 , H04L25/03
Abstract: A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stage coupled to the output and comprising: a buffer; a second interpolator coupled to the buffer; and a second equalizer coupled to the second interpolator. A method comprising: receiving an optical burst signal; determining an optimum sampling phase based on a portion of a digital signal representing the optical burst signal; and equalizing all of the digital signal using the optimum sampling phase.
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公开(公告)号：US20180167143A1
公开(公告)日：2018-06-14
申请号：US15378362
申请日：2016-12-14
Applicant: Futurewei Technologies, Inc.
Inventor： Shuchang Yao , Lei Zhou , Minghui Tao , Xiang Liu , Frank Effenberger
IPC: H04B10/2575 , H04B10/27 , H04B10/524 , H04B10/54 , H04B10/69 , H04L7/033 , H04L25/03
CPC classification number: H04L25/03057 , H04B10/27 , H04B10/6971 , H04L7/0331 , H04L2025/03369
Abstract: An apparatus comprises: a CDR sub-system comprising: an FFE; a decision component coupled to the FFE; a subtractor coupled to the FFE and the decision component; and a tap weight updater coupled to the subtractor and the FFE; and a PR-MLSE component coupled to the CDR sub-system. A method comprises: converting an optical signal with a first modulation format to an analog electrical signal; converting the analog electrical signal to a first digital signal; equalizing the first digital signal into a second digital signal with a second modulation format, wherein the second modulation format has more levels than the first modulation format; and performing CDR on the second digital signal.
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公开(公告)号：US20170324478A1
公开(公告)日：2017-11-09
申请号：US15659414
申请日：2017-07-25
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Lei Zhou , Huafeng Lin
CPC classification number: H04B10/2575 , H04B10/548 , H04J14/00 , H04L5/0044 , H04L27/2697 , H04L27/34 , H04W28/065 , H04W72/00
Abstract: A method implemented by a wireless fronthaul unit, the method comprises aggregating a plurality of first wireless channel signals to produce a first aggregated signal via digital frequency-domain mapping (FDM), wherein the first wireless channel signals are positioned in the first aggregated signal in non-overlapping first frequency bands, each non-overlapping first frequency band having a first bandwidth and a center frequency, wherein each respective center frequency is an odd integer multiple of a lowest center frequency, converting the first aggregated signal into a first modulated signal, and transmitting the first modulated signal to a wireless fronthaul link.
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10.发明授权公开(公告)号：US10153844B2
公开(公告)日：2018-12-11
申请号：US15477754
申请日：2017-04-03
Applicant: Futurewei Technologies, Inc.
Inventor： Xiang Liu , Frank Effenberger , Huaiyu Zeng , Shuchang Yao , Lei Zhou , Xianbo Dai , Shengming Ma , Lin Huang
Abstract: A transceiver comprises: a sampling phase optimization stage comprising: a first interpolator; a first equalizer coupled to the first interpolator; a first optimizer coupled to the first equalizer; and an output; and an equalization stage coupled to the output and comprising: a buffer; a second interpolator coupled to the buffer; and a second equalizer coupled to the second interpolator. A method comprising: receiving an optical burst signal; determining an optimum sampling phase based on a portion of a digital signal representing the optical burst signal; and equalizing all of the digital signal using the optimum sampling phase.
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