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公开(公告)号：US11882604B2
公开(公告)日：2024-01-23
申请号：US17329882
申请日：2021-05-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun Chen , Peng Liu , Jingjing Huang , Guangjian Wang
CPC classification number: H04W74/0833 , H04B7/18543 , H04B7/18589 , H04W56/009 , H04W84/06
Abstract: This application provides a random access method and apparatus applicable to satellite communication. The method includes: obtaining a round-trip transmission latency tRTD of a signal between a terminal device and a satellite; obtaining a random access parameter based on the tRTD, where the random access parameter includes one or more of: a duration between a moment at which the terminal device sends a random access preamble and a moment at which the terminal device starts to receive a random access response RAR, a duration of a window in which the terminal device receives the RAR, a duration between a moment at which the terminal device stops receiving the RAR and a moment at which the terminal device sends the random access preamble again, and a subframe duration; and receiving, by the terminal device the RAR based on the random access parameter.
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公开(公告)号：US20210384625A1
公开(公告)日：2021-12-09
申请号：US17406357
申请日：2021-08-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Liu , Xinming Liu , Hongzhi Zhang , Jiejun Zhou
Abstract: This application provides a phase shifter and an electrically tunable antenna including the phase shifter, where the phase shifter includes a tuning accessory, and the tuning accessory includes a tuning portion for tuning input impedance of the phase shifter. One additional capacitance or inductance parameter is added in the phase shifter by using the tuning portion, to affect input impedance of a port, to further affect a port standing wave, thereby tuning the port standing wave by using the tuning accessory. In addition, the tuning accessory in this application is a molded part with a fixed structure.
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公开(公告)号：US20210360556A1
公开(公告)日：2021-11-18
申请号：US17390317
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Liu , Jun Chen , Jingjing Huang , Guangjian Wang
IPC: H04W56/00
Abstract: A timing advance update method and device, where the method includes: A terminal obtains a transmission delay variation, where the transmission delay variation is a delay variation of transmission between the terminal and a network device; the terminal determines a new timing advance based on the transmission delay variation, a current timing advance, and a timing advance critical value, where the timing advance of the terminal is not greater than the timing advance critical value; and the terminal performs uplink transmission based on the new timing advance.
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公开(公告)号：US20250024514A1
公开(公告)日：2025-01-16
申请号：US18899235
申请日：2024-09-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Li Sun , Peng Liu , Yuwei Wang
IPC: H04W74/0833 , H04L27/18
Abstract: A random access method and an apparatus are provided. The method includes: A terminal device sends a first uplink message to a network device, where the first uplink message includes a first identifier. Correspondingly, the network device receives the first uplink message. Then, the network device processes the first identifier to obtain a plurality of modulation symbols, and then sends a first downlink message, where the first downlink message includes the plurality of modulation symbols. Correspondingly, after receiving the first downlink message, the terminal device may process the plurality of modulation symbols based on the first identifier to obtain a processed identifier. In this case, the terminal device may determine, based on the processed identifier, whether random access of the terminal device succeeds.
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5.发明授权公开(公告)号：US12035267B2
公开(公告)日：2024-07-09
申请号：US17390317
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Liu , Jun Chen , Jingjing Huang , Guangjian Wang
CPC classification number: H04W56/005 , H04W56/001 , H04W84/06
Abstract: A timing advance update method and device, where the method includes: A terminal obtains a transmission delay variation, where the transmission delay variation is a delay variation of transmission between the terminal and a network device; the terminal determines a new timing advance based on the transmission delay variation, a current timing advance, and a timing advance critical value, where the timing advance of the terminal is not greater than the timing advance critical value; and the terminal performs uplink transmission based on the new timing advance.
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Patent Agency Ranking
公开(公告)号：US20230231537A1
公开(公告)日：2023-07-20
申请号：US18187846
申请日：2023-03-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hangtian Hou , Bo Du , Peng Liu , Zongzhi Gao
CPC classification number: H03H9/175 , H03H3/02 , H03H9/564 , H03H9/568 , H03H2003/025
Abstract: Disclosed are a resonator and a manufacturing method thereof, a filter, and an electronic device. The resonator includes a substrate, a Bragg reflection layer, and a piezoelectric layer that are sequentially stacked. A first electrode is disposed on a surface that is of the piezoelectric layer and that faces the Bragg reflection layer, a second electrode is disposed on a surface that is of the piezoelectric layer and that is away from the Bragg reflection layer, a border ring is disposed on a surface that is of the second electrode and that is away from the piezoelectric layer, and the resonator has a first resonance region and a second resonance region corresponding to the border ring.
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公开(公告)号：US20220022152A1
公开(公告)日：2022-01-20
申请号：US17487679
申请日：2021-09-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peng Liu , Jun Chen , Jingjing Huang , Guangjian Wang
Abstract: This application provides methods and apparatuses for uplink timing synchronization. The method includes: determining, based on beam information of a first beam and ephemeris information of the satellite base station, an uplink timing frame number of a first cell corresponding to the first beam; determining timing information of a first terminal device in the first cell based on the uplink timing frame number of the first cell, where the timing information is used to indicate a timing advance or a timing lag; and outputting the timing information.
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公开(公告)号：US10483635B2
公开(公告)日：2019-11-19
申请号：US15993587
申请日：2018-05-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanmin Yu , Jian Song , Dingjiu Daojian , Peng Liu
IPC: H01Q1/52 , H01Q21/00 , H01Q5/328 , H01Q1/24 , H01Q21/26 , H01Q21/29 , H01Q21/30 , H01Q15/14 , H01Q21/28 , H01Q5/48
Abstract: Embodiments of the present invention provide a multi-frequency communications antenna and a base station. The multi-frequency communications antenna includes at least one low-frequency array, at least one high-frequency array, at least one circuit board disposed corresponding to the high-frequency array, and a reflection panel, where a filtering component configured to decouple filtering is disposed on the circuit board, a first end of the filtering component is electrically connected to the high-frequency array, and a second end of the filtering component is electrically connected to a signal ground layer of the circuit board. The filtering component configured to decouple filtering that is shown in this embodiment is disposed on the circuit board, which causes a small damage to an array radiation environment.
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公开(公告)号：US20230319557A1
公开(公告)日：2023-10-05
申请号：US18331948
申请日：2023-06-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Peng Liu , Huiming Wang , Xuan Wei , Jianjun Wu
IPC: H04W12/0431 , H04L5/00 , H04W12/037
CPC classification number: H04W12/0431 , H04L5/0048 , H04W12/037
Abstract: This disclosure provides an authentication method and a related apparatus. The method includes: A terminal device receives a first received encrypted reference signal corresponding to a first sent encrypted reference signal that is generated by an access network device using a pilot key and a first reference signal and transmitted through a channel; the terminal device performs channel estimation by using the first received encrypted reference signal and the first sent encrypted reference signal, to obtain downlink channel state information; and the terminal device sends first information to the access network device, where the first information includes the downlink channel state information, to effectively defend against man-in-the-middle attacks.
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公开(公告)号：US20230308173A1
公开(公告)日：2023-09-28
申请号：US18327631
申请日：2023-06-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Peng Liu , Huiming Wang
CPC classification number: H04B7/1855 , H04B7/01 , H04J13/0029
Abstract: An information transmission method and apparatus are provided. The method includes: A first communication apparatus determines feature information of a target channel and first common delay information, and determines scrambling information based on the feature information of the target channel. The first communication apparatus processes the first common delay information based on the scrambling information, to obtain second common delay information. The first communication apparatus sends the second common delay information through the target channel. A second communication apparatus receives the second common delay information through the target channel, and determines the feature information of the target channel. The second communication apparatus determines descrambling information based on information of the target channel, and further processes the second common delay information based on the descrambling information to obtain the first common delay information. In this solution, both the first communication apparatus and the second communication apparatus respectively determine corresponding scrambling information and descrambling information based on feature information of a transmission channel of common delay information, to ensure that the second communication apparatus obtains correct first common delay information.
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