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公开(公告)号：US12107787B2
公开(公告)日：2024-10-01
申请号：US17506877
申请日：2021-10-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei Liu , Lei Chen
CPC classification number: H04L5/0048 , H04L27/2613 , H04L5/001
Abstract: Example reference signal sending and receiving methods and apparatus are described. One example method includes generating a first reference signal based on a first sequence and generating a second reference signal based on a second sequence by a first device, where the first sequence and the second sequence are complementary sequences. The first device sends the first reference signal and the second reference signal by using a same antenna port and a same resource.
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公开(公告)号：US12004207B2
公开(公告)日：2024-06-04
申请号：US17332515
申请日：2021-05-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei Liu , Lei Chen , Jing Qiu
CPC classification number: H04W72/54 , H04B7/0626
Abstract: Embodiments of the present disclosure disclose example network device, terminal device, and method for notifying information about a power difference. One example network device includes one or more processors performing operations that include determining first information and sending, by a transceiver of the network device, the first information to a terminal device. The first information indicates a first power difference that is associated with a first waveform. The first power difference is an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used.
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公开(公告)号：US20240039668A1
公开(公告)日：2024-02-01
申请号：US18476348
申请日：2023-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Minghui Xu , Fengwei Liu , Xi Zhang
IPC: H04L5/00
CPC classification number: H04L5/0048 , H04L5/0007
Abstract: This application provides a method and an apparatus for determining a phase tracking reference signal (PTRS) pattern. The method includes: A terminal device receives first scheduled bandwidth threshold information from a network device, where a first scheduled bandwidth threshold indicated by the first scheduled bandwidth threshold information meets a first condition, and the first condition is that a ratio of a total quantity of modulation symbols in a PTRS pattern determined based on the first scheduled bandwidth threshold to a quantity of subcarriers in scheduled bandwidth is less than or equal to a first threshold; and determines a PTRS pattern on one orthogonal frequency division multiplexing (OFDM) symbol in an OFDM signal based on the scheduled bandwidth threshold. In this application, the network device configures, for the terminal device, the scheduled bandwidth threshold that meets the first condition, to ensure demodulation performance of the device.
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公开(公告)号：US20230362727A1
公开(公告)日：2023-11-09
申请号：US18352865
申请日：2023-07-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shitong Yuan , Fengwei Liu
IPC: H04W28/086 , H04W72/0453 , H04W72/51
CPC classification number: H04W28/0864 , H04W72/0453 , H04W72/51
Abstract: An IAB node reports first information to a donor node of the IAB node, where the first information indicates a first condition, and the first condition is a condition under which an MT of the IAB node and a DU of the IAB node work synchronously; and under the first condition, the DU of the IAB node communicates with a lower-level node of the IAB node or a terminal device, and synchronously, the MT of the IAB node communicates with an upper-level node of the IAB node.
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公开(公告)号：US11451356B2
公开(公告)日：2022-09-20
申请号：US17077772
申请日：2020-10-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fengwei Liu , Lei Chen
Abstract: This application relates to the field of communications technologies, and discloses a resource configuration method and a node. The method includes: sending, by an parent node of a first node, first configuration information to the first node; and then determining, by the first node based on the first configuration information, a second resource for communication between the first node and a child node served by the first node. In this way, the determined second resource can implement orthogonalization between DMRS ports of an access link of the first node and a backhaul link of the first node, and therefore, link performance is improved.
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Patent Agency Ranking
公开(公告)号：US20220174668A1
公开(公告)日：2022-06-02
申请号：US17651086
申请日：2022-02-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shitong Yuan , Fengwei Liu , Jing Qiu
Abstract: This application provides a transmission resource configuration method and an apparatus. The method includes: receiving, by a first node, a transmission resource configuration from a second node, where the transmission resource configuration includes a first configuration and a second configuration, the first configuration indicates that a start time resource is uplink and/or an end time resource is downlink in a configuration period, and the second configuration indicates that a start time resource is downlink and/or an end time resource is uplink in a configuration period; and switching, by the first node based on first signaling, a transmission direction of a first time resource in the first configuration by using the first configuration; or using, by the first node, the first configuration or the second configuration based on second signaling.
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公开(公告)号：US20220123979A1
公开(公告)日：2022-04-21
申请号：US17564450
申请日：2021-12-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei Liu , Huang Huang
Abstract: This application provides a symbol processing method and apparatus. The method includes: obtaining a plurality of complex-valued symbols; dividing the plurality of complex-valued symbols into a plurality of sets, where each set corresponds to one transmitted symbol; and performing a copy operation on the plurality of sets, so that two sets corresponding to two transmitted symbols that are consecutive in time domain have some same complex-valued symbols. By enabling two sets corresponding to two transmitted symbols that are consecutive in time domain to have some same complex-valued symbols, a guard interval between symbols can be flexibly configured when a cyclic prefix length is fixed.
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公开(公告)号：US20220123899A1
公开(公告)日：2022-04-21
申请号：US17565669
申请日：2021-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei Liu , Huang Huang
Abstract: This application provides a symbol processing method and apparatus. The method includes obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmitted symbol and a second set corresponding to a second transmitted symbol, performing a copy operation on the first set and the second set so both the first set and the second set have first complex-valued symbols, and a first subset start location including the first complex-valued symbols in the first set is the same as a second subset start location including the first complex-valued symbols in the second set; and performing signal processing including a cyclic shift or frequency domain weighting on the first set and the second set. The start location and an end location of the first subset respectively correspond to locations preceding and following a first reference point of the first transmitted symbol.
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公开(公告)号：US11265871B2
公开(公告)日：2022-03-01
申请号：US16992134
申请日：2020-08-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fengwei Liu , Xiaoyong Tang , Lei Chen , Jing Qiu
Abstract: Various embodiments provide a relay transmission method, where a first node is a parent node of a second node. In those embodiments, a request message from the first node can be received by the second node, where the request message is configured to request the second node to become a parent node of the first node. Still in those embodiments, indication information can be sent, by the second node, to the first node, where the indication information is used to indicate that a downlink beam sent from the second node to the first node after the second node becomes the parent node is the same as or similar to an uplink beam sent from the second node to the first node when the first node is the parent node. The indication information may be carried in a response message for the request message.
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公开(公告)号：US20210058884A1
公开(公告)日：2021-02-25
申请号：US17094341
申请日：2020-11-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fengwei Liu , Lei Chen
IPC: H04W56/00
Abstract: A method includes: receiving, by a first node, transmission timing information sent by a second node, where the transmission timing information includes a first network timing advance; and determining, by the first node, frame timing of the first node based on the transmission timing information, where the frame timing includes a downlink frame sending time and/or an uplink frame receiving time of the first node; and the second node is an upper-level node of the first node.
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