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公开(公告)号：US20240195568A1
公开(公告)日：2024-06-13
申请号：US18400301
申请日：2023-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei LIU , Lei CHEN , Minghui XU
CPC classification number: H04L5/0051 , H04B7/0691
Abstract: This disclosure describes a communication processing method. A method according to this disclosure includes: A terminal device determines first weight vectors respectively corresponding to M antenna element set groups. At least one antenna element set group in the M antenna element set groups includes at least two antenna element sets, and a first weight vector corresponding to each of the at least one antenna element set group includes at least two elements. Each element is corresponding to one antenna element set in the antenna element set group, and each element is used to adjust a phase of an antenna element included in the antenna element set corresponding to the element. Different elements correspond to different antenna element sets. M is an integer greater than or equal to 1.
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公开(公告)号：US20240031213A1
公开(公告)日：2024-01-25
申请号：US18477820
申请日：2023-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei LIU , Minghui XU
CPC classification number: H04L27/2636 , H04L5/0007
Abstract: This application discloses a signal transmission method and apparatus, to implement signal transmission by using a multi-stream DFT-s-OFDM waveform. The method includes: precoding N streams of signals based on a first codebook before sending, to obtain N1 precoded signals, where a quantity of non-zero elements in each row of the first codebook is 1, the first codebook causes a phase difference between two of the N streams of signals, and N and N1 are integers greater than 1; and sending the N1 precoded signals. A transmitting end introduces a phase offset between two transmit antenna ports in a precoding process, so that equivalent inter-stream interference is optimal after channel equalization is performed at a receiving end, to improve demodulation performance of the receiving end.
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23.发明公开公开(公告)号：US20230198715A1
公开(公告)日：2023-06-22
申请号：US18170041
申请日：2023-02-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei LIU , Minghui XU
IPC: H04L5/00
CPC classification number: H04L5/0051
Abstract: A PTRS sending method and receiving method and a communication apparatus. The method includes: a terminal device sends first information to a network device, receives first indication information from the network device, and sends a DFT-s-OFDM symbol to which a PTRS is mapped to the network device. In the method, a rule for mapping the PTRS to a plurality of layers of the DFT-s-OFDM symbol is specified, to ensure phase noise estimation performance and improve a demodulation capability.
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公开(公告)号：US20220248266A1
公开(公告)日：2022-08-04
申请号：US17721593
申请日：2022-04-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Minghui XU , Xi ZHANG
Abstract: This application discloses a method, including: determining, by a network device, at least one modulation and coding scheme (MCS) threshold; sending, by the network device to a terminal device, the at least one MCS threshold; wherein the at least one MCS threshold and a maximum MCS threshold are associated with a first MCS table corresponding to a highest modulation scheme supported by the terminal device; wherein the highest modulation scheme supported by the terminal device is 64 QAM, and the maximum MCS threshold is 29; or the highest modulation scheme supported by the terminal device is 256 QAM, and the maximum MCS threshold is 28.
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公开(公告)号：US20220038320A1
公开(公告)日：2022-02-03
申请号：US17402346
申请日：2021-08-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xi ZHANG , Fengwei LIU , Lei CHEN , Minghui XU
Abstract: A PTRS processing method includes: receiving, by a terminal, first indication information and second indication information from a network device, where the first indication information is used to indicate a time-domain location at which a PTRS is to be sent by the terminal, and the second indication information is used to indicate an offset of an initial time-domain location to which the PTRS is mapped by the terminal; mapping, by the terminal, the PTRS to one or more DFT-s-OFDM symbols based on the first indication information and the second indication information; and sending, by the terminal, the one or more DFT-s-OFDM symbols. In this way, the PTRS mapped to the DFT-s-OFDM symbol is offset at a DFT-s-OFDM symbol level.
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Patent Agency Ranking
公开(公告)号：US20210408800A1
公开(公告)日：2021-12-30
申请号：US17447485
申请日：2021-09-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Minghui XU , Tiansan LIN , Yongbing GAO
Abstract: An inverter apparatus is disclosed in this application, which includes a plurality of protection units and a plurality of inverter units. For any protection unit, when a voltage at an input terminal of the protection unit is greater than a voltage at an output terminal of the protection unit, a path between the input terminal and the output terminal of the protection unit is in a forward conducted state; when the voltage at the output terminal of the protection unit is greater than the voltage at the input terminal voltage of the protection unit, the path between the input terminal and the output terminal of the protection unit is in a reverse cut-off state; and when a control terminal of the protection unit receives a first trigger signal, the path between the input terminal and the output terminal of the protection unit is in a reverse conducted state.
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27.发明申请公开(公告)号：US20200280473A1
公开(公告)日：2020-09-03
申请号：US16875781
申请日：2020-05-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yoav LEVINBOOK , Ezer MELZER , Doron EZRI , Minghui XU , Xi ZHANG
Abstract: The present invention provides an apparatus for constructing a pre-DFT sample sequence for an OFDM-signal, comprising: a processor configured to construct a pre-DFT sample sequence with a pre-defined length such that it comprises data; and a PTRS-group, wherein the last sample of the PTRS-group is placed within the pre-DFT sample sequence at a pre-defined position located B samples before the end of the pre-DFT sample sequence.
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公开(公告)号：US20200076647A1
公开(公告)日：2020-03-05
申请号：US16674261
申请日：2019-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xi ZHANG , Minghui XU
Abstract: This application discloses a communication method and a communications apparatus. The method includes: determining, by a first device, a phase tracking reference signal PTRS pattern, where the PTRS pattern includes one or more PTRS chunks, and each PTRS chunk includes one or more PTRS samples; and mapping, by the first device, a PTRS to one or more symbols, and sending the one or more symbols to a second device.
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公开(公告)号：US20200021353A1
公开(公告)日：2020-01-16
申请号：US16578284
申请日：2019-09-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huang HUANG , Xianfeng DU , Minghui XU
IPC: H04B7/08 , H04B17/309 , H04W56/00 , H04W72/02
Abstract: Embodiments of the present application disclose a communication method, including: performing, by a base station, beam scanning and alignment together with first terminal in a first subframe, to determine a beam that is used for sending data in the first subframe; and sending, by the base station, beam information of the beam used for sending data, where the beam information includes at least identification information of the beam and a synchronization signal, the synchronization signal is used by second terminal to synchronize with the base station, and the identification information of the beam is used by the first terminal and the second terminal to identify the beam sent by the base station. According to the present application, a time for scanning and alignment can be reduced, so as to facilitate quick access of a user that is to perform access.
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公开(公告)号：US20190296946A1
公开(公告)日：2019-09-26
申请号：US16442129
申请日：2019-06-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xi ZHANG , Minghui XU
Abstract: This application provides a reference signal transmission method and transmission apparatus. The transmission method includes: determining, by a network device, a resource block offset of a frequency domain position of a phase tracking reference signal (PTRS) of a terminal device based on PTRS information of the terminal device, an identifier of the terminal device, and first bandwidth, where the PTRS information includes a frequency domain density or a frequency domain interval of the PTRS, and the first bandwidth is bandwidth scheduled by the network device for the terminal device; and performing, by the network device, transmission of the PTRS with the terminal device based on the resource block offset of the frequency domain position of the PTRS. The reference signal transmission method provided in embodiments of this application is helpful in randomizing PTRS interference.
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