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公开(公告)号：US12149485B2
公开(公告)日：2024-11-19
申请号：US17366815
申请日：2021-07-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yuchen Wang , Chenwan Li , Yiling Wu , Zhenyu Li
IPC: H04L5/00 , H04L27/26 , H04W72/0453 , H04L5/14
Abstract: The present disclosure discloses example communications methods and apparatuses. One example method includes obtaining effective carrier indication information from a network device. An effective carrier frequency is obtained based on the effective carrier indication information, where the effective carrier indication information includes first information, second information, and third information. The first information includes first indication information, second indication information, or third indication information. The first indication information is used to indicate that carriers are not paired, the second indication information is used to indicate that carriers are paired, the third indication information is used to indicate a paired carrier frequency spacing, the second information is used to indicate a start carrier frequency, and the third information is used to indicate a frequency domain location of an effective carrier relative to a start carrier.
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公开(公告)号：US20240372766A1
公开(公告)日：2024-11-07
申请号：US18772284
申请日：2024-07-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L27/26
Abstract: This application provides a communication method, an apparatus, a device, and a storage medium. The method includes: A first device generates a first orthogonal frequency division multiplexing (OFDM) time domain signal, which occupies one subcarrier in frequency domain and is used by a second device to perform backscatter communication. The first device sends the first OFDM time domain signal to the second device. The first OFDM time domain signal occupies one subcarrier in frequency domain, such that power is concentrated on the subcarrier. When the second device performs backscatter communication based on the first OFDM time domain signal, reliability of backscatter data is improved.
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23.发明授权公开(公告)号：US11736267B2
公开(公告)日：2023-08-22
申请号：US16892691
申请日：2020-06-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong Ji , Yiling Wu , Guangwei Yu , Robert William Young , Brian Martin Gaffney
CPC classification number: H04L7/041 , H04J11/0069 , H04J13/0062 , H04L27/2662 , H04L27/2663 , H04W56/00 , H04W56/001 , H04L27/2657 , H04L27/2671 , H04W4/70
Abstract: The present disclosure relates to the field of wireless communications technologies, relates to a signal sending device, a signal receiving device, a symbol timing synchronization method, and a system, and resolves a problem that complexity of symbol timing synchronization performed by a terminal with relatively low crystal oscillator accuracy is high. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences. This has relatively low implementation complexity, compared with an existing method in which grid search should be performed multiple times to compensate for a relatively large phase rotation.
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24.发明授权公开(公告)号：US11553472B2
公开(公告)日：2023-01-10
申请号：US16886793
申请日：2020-05-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present disclosure discloses a method for transmitting downlink feedback information, a base station, and a terminal device, so as to ensure that the base station correctly receives the downlink feedback information sent by the terminal device, thereby effectively improving a transmission success rate of the downlink feedback information. In embodiments of the present disclosure, the method includes: sending, by the base station, indication information to the terminal device, where the indication information is used to indicate a target time-frequency resource location, the target time-frequency resource location is a time-frequency resource location at which the terminal device sends the downlink feedback information, and the downlink feedback information is used to feed back a reception status of downlink data that should be received by the terminal device; and receiving, by the base station, the downlink feedback information sent by the terminal device.
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公开(公告)号：US11388710B2
公开(公告)日：2022-07-12
申请号：US17091183
申请日：2020-11-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Han Zhou , Meng Hua , Xiaolei Tie , Gengshi Wu , Yiling Wu
Abstract: A method and apparatus is provided. The method includes: obtaining downlink control information, wherein the downlink control information is used to schedule downlink data, and the downlink control information carries time information indicating a time at which uplink information is sent; obtaining, through a system message or radio resource control signaling or a resource of a physical random access channel, information indicating a duration for sending the uplink information; receiving the downlink data; and sending the uplink information according to the time information and the information indicating the duration, wherein the uplink information is used to indicates whether the downlink data is correctly received.
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Patent Agency Ranking
公开(公告)号：US10999703B2
公开(公告)日：2021-05-04
申请号：US16733109
申请日：2020-01-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yinghui Yu , Chenwan Li , Zhe Jin , Yiling Wu , Zhe Chen , Weiliang Zhang , Zhihu Luo
Abstract: Embodiments of this application provide a method for transmitting positioning assistance data and a device. The method includes: receiving, by a network device, at least one positioning assistance data message sent by a positioning server, where the at least one positioning assistance data message is used to carry positioning assistance data; and broadcasting, by the network device, a system message to a terminal device, where the system message is used by the terminal device to obtain the positioning assistance data. According to the embodiments of this application, the network device broadcasts the system message to broadcast the positioning assistance data.
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27.发明申请公开(公告)号：US20200296703A1
公开(公告)日：2020-09-17
申请号：US16886793
申请日：2020-05-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present disclosure discloses a method for transmitting downlink feedback information, a base station, and a terminal device, so as to ensure that the base station correctly receives the downlink feedback information sent by the terminal device, thereby effectively improving a transmission success rate of the downlink feedback information. In embodiments of the present disclosure, the method includes: sending, by the base station, indication information to the terminal device, where the indication information is used to indicate a target time-frequency resource location, the target time-frequency resource location is a time-frequency resource location at which the terminal device sends the downlink feedback information, and the downlink feedback information is used to feed back a reception status of downlink data that should be received by the terminal device; and receiving, by the base station, the downlink feedback information sent by the terminal device.
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公开(公告)号：US20200296687A1
公开(公告)日：2020-09-17
申请号：US16886949
申请日：2020-05-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaosong Zhu , Yiling Wu
Abstract: This application provides a communication method and a communications device. The method includes: receiving, by an access network device from a core network device, a first group identifier of a first terminal group and an identifier of a terminal included in the first terminal group; and sending, by the access network device, the first group identifier and a second group identifier of the first terminal group to the terminal included in the first terminal group. The first group identifier and the second group identifier are used to indicate a paging occasion for the first terminal group, and a paging message for the first terminal group is transmitted on a first physical channel. The technical solutions in the embodiments of this application can improve system efficiency.
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公开(公告)号：US10560922B2
公开(公告)日：2020-02-11
申请号：US15937399
申请日：2018-03-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zheng Yu , Weiliang Zhang , Xingqing Cheng , Yiling Wu
Abstract: A channel transmission method, a base station, and a terminal device are provided. In one example method, a base station determines a communication mode to be used between the base station and a terminal device. The base station determines a transmission parameter set of a first channel according to the determined communication mode. The communication mode corresponds to the transmission parameter set of the first channel. The base station transmits information associated with the first channel to the terminal device.
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公开(公告)号：US10225126B2
公开(公告)日：2019-03-05
申请号：US15266794
申请日：2016-09-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiling Wu , Tong Ji , Zhiqin Yu , Weiliang Zhang
IPC: H04L27/26
Abstract: The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc(m)=e±jπm(m+1+2q)/L, m=0, 1, . . . , L−1, q∈Z, L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e±jπm(m+1+2q)/L indicates the (±jπm(m+1+2q)/L)th power of e, and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.
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