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公开(公告)号：US20230042130A1
公开(公告)日：2023-02-09
申请号：US17965332
申请日：2022-10-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Junping Zhang
Abstract: A network device generates first resonant light used to carry information; and the network device sends the first resonant light to a terminal by using a resonant cavity component, where the resonant cavity component of the network device and a resonant cavity component of the terminal form an open resonant cavity. In wireless optical communication, an information transmission rate can be greatly improved by using a resonant light multiplexing technology. This application further discloses a network device and a terminal that can implement the foregoing wireless optical communication method.
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公开(公告)号：US10284272B2
公开(公告)日：2019-05-07
申请号：US15258943
申请日：2016-09-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Min Yan , Junping Zhang , Wei Wang , Qian Zhang
Abstract: A channel estimation apparatus and method are provided to ensure that a channel estimation value can correctly reflect a transmission channel status, so that an orthogonal frequency division multiplexing (OFDM)-based wireless system can correctly transmit an aggregate long frame according to the channel estimation value. The channel estimation apparatus determines a first channel estimation value, receives a first symbol group of a long frame according to the first channel estimation value, and determines a second channel estimation value according to the first symbol group, and if a difference between the first channel estimation value and the second channel estimation value is less than or equal to a first threshold, determines a third channel estimation value according to the first channel estimation value and the second channel estimation value.
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公开(公告)号：US09942073B2
公开(公告)日：2018-04-10
申请号：US15250395
申请日：2016-08-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Junping Zhang , Min Yan , Wei Wang
CPC classification number: H04L27/2627 , H04L27/183 , H04L27/2602 , H04L27/2626 , H04L27/2657 , H04L27/2675
Abstract: A method, an apparatus, and a device are provided for information transmission. In the method, the apparatus determines an initial OFDM symbol in OFDM symbols used to transmit load information. The apparatus determines, starting from the initial OFDM symbol, a phase deviation difference between two adjacent OFDM symbols according to first information to be transmitted. The apparatus performs phase deviation on at least one of the OFDM symbols according to the phase deviation difference. The apparatus then sends the OFDM symbols obtained after the phase deviation to a receiving end.
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公开(公告)号：US20180054221A1
公开(公告)日：2018-02-22
申请号：US15803002
申请日：2017-11-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dror REGEV , Shimon Shilo , Doron Ezri , ChirnChye Boon , Xiang Yi , Junping Zhang , Gengen Hu , Dong Liang , Sheng Liu
CPC classification number: H04B1/0053 , H04B1/006 , H04B1/0075 , H04B1/18
Abstract: The communication receiver comprises a mixer being configured to mix the communication signal with a periodic mixing signal having a mixing frequency fC to obtain a mixed communication signal, wherein the mixed communication signal comprises a first frequency spectrum portion comprising the spectral region of interest being situated around a frequency fRF+fC and a second frequency spectrum portion comprising the spectral range of interest being situated around fRF−fC; a first demodulator being configured to demodulate a first frequency channel of the plurality of frequency channels within the spectral range of interest of the first frequency spectrum portion on the basis of a first local oscillator frequency fLO1; and a second demodulator being configured to demodulate a second frequency channel of the plurality of frequency channels within the spectral region of interest of the second frequency spectrum portion on the basis of a second local oscillator frequency fLO2.
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