-
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.
-
公开(公告)号：US20230194701A1
公开(公告)日：2023-06-22
申请号：US18170451
申请日：2023-02-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kun Zeng , Guangjian Wang , Dongyu Geng
CPC classification number: G01S13/9027 , G01S7/411 , G01S13/887 , G01S13/9058 , G01S13/9004
Abstract: An electromagnetic wave imaging method, system, and apparatus are provided. The method includes collecting an electromagnetic echo signal, where the electromagnetic echo signal is used to indicate electromagnetic wave scattering feature information of a target object, obtaining location information of a reception point of the electromagnetic echo signal, where the location information indicates relative location information between the reception point and a positioning label, and performing electromagnetic wave imaging on the target object based on the electromagnetic wave scattering feature information and the location informati
-
公开(公告)号：US20220417447A1
公开(公告)日：2022-12-29
申请号：US17902550
申请日：2022-09-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kun Zeng , Ziming Yu , Jia He , Guangjian Wang
Abstract: Certain embodiments provide an imaging method for a non-line-of-sight object and an electronic device. In certain embodiments, the method includes: detecting a first input operation; and generating first image data in response to the first input operation. The first image data is imaging data of the non-line-of-sight object obtained by fusing second image data and third image data. The first image data includes position information between the non-line-of-sight object and a line-of-sight object. The second image data is imaging data of the line-of-sight object captured by the optical camera. The third image data is imaging data of the non-line-of-sight object captured by the electromagnetic sensor.
-
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.
-
公开(公告)号：US10721042B2
公开(公告)日：2020-07-21
申请号：US16252831
申请日：2019-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kun Zeng , Guangjian Wang , Huang Huang
Abstract: The present application discloses an uplink reference signal transmission method and apparatus. The method includes: determining, by a terminal, a time domain resource sending position of an uplink reference signal, where there is a guard interval at a first end of the uplink reference signal; and after arriving at the time domain resource sending position, switching, in a first sequence, transmit beams in different time slices in M time slices at a first time interval corresponding to the uplink reference signal, to transmit the uplink reference signal, and switching, in a second sequence, transmit beams in different time slices in the M time slices at a second time interval corresponding to the uplink reference signal, to transmit the uplink reference signal, where the uplink reference signal includes uplink reference signals transmitted in the M different time slices.
-
Patent Agency Ranking
公开(公告)号：US10404518B2
公开(公告)日：2019-09-03
申请号：US16052519
申请日：2018-08-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kun Zeng , Huang Huang , Guangjian Wang
Abstract: The present application discloses a communications method and apparatus. The method includes: determining a radio frame, where the radio frame includes a period, the period includes at least one first sub-period and at least one second sub-period, the first sub-period corresponds to a first procedure, and the second sub-period corresponds to a second procedure; the first sub-period includes n first time slices, different beams are used in adjacent first time slices in the n first time slices, there is a first guard interval between the adjacent first time slices, and the second sub-period includes m second time slices; and at least one first time slice is adjacent to at least one second time slice and there is no guard interval between the at least one first time slice and the at least one second time slice that are adjacent to each other; and performing communication by using the radio frame.
-
公开(公告)号：US20150078486A1
公开(公告)日：2015-03-19
申请号：US14551876
申请日：2014-11-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guangjian Wang , Yanxing Zeng , Kunpeng Liu
CPC classification number: H04L27/361 , H04L1/0057 , H04L1/007 , H04L27/38
Abstract: Disclosed are a code modulation method and apparatus for high order modulation. The method comprises: converting information that needs to be transmitted into a bit data stream, and demultiplexing the bit data stream into more than one channel of bit data stream; performing first-type coding on at least one channel of bit data stream in the more than one channel of stream, to obtain first output data; performing second-type coding on at least one channel of the remaining channels of bit data stream on which the first-type coding is not performed, to obtain second output data; and performing quadrature amplitude modulation on the first output data, to generate a modulation symbol for output. Compared with the prior art, the correctness rate of demodulation in the technical solution is improved significantly, achieving higher transmission efficiency.
Abstract translation: 公开了一种用于高阶调制的码调制方法和装置。 该方法包括：将需要发送的信息转换成比特数据流，以及将比特数据流多路分解成多于一个信道的比特数据流; 在流的多于一个信道中的位数据流的至少一个信道上执行第一类型编码，以获得第一输出数据; 对未执行第一类型编码的比特数据流的剩余信道的至少一个信道执行第二类型编码，以获得第二输出数据; 并对第一输出数据执行正交幅度调制，以产生用于输出的调制符号。 与现有技术相比，技术解决方案的正确率明显提高，传输效率更高。
-
公开(公告)号：US12218706B2
公开(公告)日：2025-02-04
申请号：US18063364
申请日：2022-12-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Songlin Shuai , Xianbin Yu , Zijie Lu , Hua Cai , Guangjian Wang
IPC: H04B10/516 , H04B10/50
Abstract: This application discloses a signal generating method, apparatus, and system. One example method includes: performing cyclic electro-optic modulation on a first signal to generate a first optical frequency comb signal, where the first signal is a signal output by a laser source, the first optical frequency comb signal includes a target spectral component, and a frequency of the target spectral component is equal to a sum of or a difference between a frequency of the first signal and a frequency of a target signal; performing first filtering processing on the first optical frequency comb signal to generate the target spectral component; and generating the target signal based on a heterodyne beat frequency of the first signal and the target spectral component.
-
9.发明授权公开(公告)号：US11606136B2
公开(公告)日：2023-03-14
申请号：US17329718
申请日：2021-05-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jun Chen , Guangjian Wang , Yinggang Du , Peng Liu
Abstract: This application provides an example satellite, an example terminal device, an example satellite communication system, and an example satellite communication method. One example satellite communication method includes obtaining, by a first satellite, at a media access control (MAC) layer, data and/or signaling, where the first satellite is a low orbit satellite. When MAC-layer first processing needs to be performed on the data and/or the signaling, performing, by the first satellite, the MAC-layer first processing on the data and/or the signaling. The MAC-layer first processing includes at least one of hybrid automatic repeat request (HARQ) function processing or random access (RA) function processing.
-
公开(公告)号：US20190158246A1
公开(公告)日：2019-05-23
申请号：US16252831
申请日：2019-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kun Zeng , Guangjian Wang , Huang Huang
Abstract: The present application discloses an uplink reference signal transmission method and apparatus. The method includes: determining, by a terminal, a time domain resource sending position of an uplink reference signal, where there is a guard interval at a first end of the uplink reference signal; and after arriving at the time domain resource sending position, switching, in a first sequence, transmit beams in different time slices in M time slices at a first time interval corresponding to the uplink reference signal, to transmit the uplink reference signal, and switching, in a second sequence, transmit beams in different time slices in the M time slices at a second time interval corresponding to the uplink reference signal, to transmit the uplink reference signal, where the uplink reference signal includes uplink reference signals transmitted in the M different time slices.
-
-
-
-
-
-
-
-
-
Search Results
43
records
(took 0.021 seconds)
