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公开(公告)号：US20190081735A1
公开(公告)日：2019-03-14
申请号：US16186437
申请日：2018-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: A polar encoding and rate matching method is provided, including: determining one or more to-be-deleted rows of a generator matrix, where the generator matrix is determined based on a preset mother code length, and a column in which 1 in the one or more to-be-deleted rows is located includes at least one column with a column weight being 1; deleting, from the one or more to-be-deleted rows, a row corresponding to a polarized channel with lowest reliability, and deleting, from a column in which 1 in the row is located, a column with a column weight being 1, to obtain an after-deletion generator matrix; using the after-deletion generator matrix as a generator matrix to repeat the foregoing steps, until an order of a final generator matrix is equal to a target code length; and performing encoding and rate matching on a to-be-encoded bit based on the final generator matrix.
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公开(公告)号：US20250071008A1
公开(公告)日：2025-02-27
申请号：US18941555
申请日：2024-11-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Rong LI , Hejia LUO , Yunfei QIAO
Abstract: A communication method includes determining a first bandwidth BW1, determining a second reserved tone pattern based on the first bandwidth BW1 and a first reserved tone pattern, and receiving or sending data based on the second reserved tone pattern. The first reserved tone pattern is a first tone index set corresponding to first reserved tones. The second reserved tone pattern is a second tone index set corresponding to second reserved tones. The second reserved tone pattern includes x translated first reserved tone patterns. A bandwidth corresponding to the first reserved tone pattern is a second bandwidth BW2, where x=int(BW1/BW2), and int represents a rounding function.
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公开(公告)号：US20250008464A1
公开(公告)日：2025-01-02
申请号：US18828666
申请日：2024-09-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tianhang YU , Xiaocheng LIU , Hejia LUO , Rong LI , Jun WANG
Abstract: A timing advance determining method includes obtaining, by a first communication apparatus, first information about a reference time signal, determining, based on the first information, a reference time at which the reference time signal is generated, and determining a timing advance based on the reference time and a first time at which the first communication apparatus receives a downlink signal. The reference time signal is a periodic signal.
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公开(公告)号：US20250008426A1
公开(公告)日：2025-01-02
申请号：US18829874
申请日：2024-09-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xian MENG , Xiaolu WANG , Jun WANG
Abstract: This application provides example communication methods, apparatuses, and systems. This application may be applied to the non-terrestrial communication network and the terminal device. The non-terrestrial communication network can include a cell set. The cell set can include a plurality of non-terrestrial transmission points, and the plurality of non-terrestrial transmission points have a same time-frequency resource. One example method includes sending information about the cell set, where the information about the cell set includes identification information of the cell set, resource configuration information of the cell set, and position information of at least one non-terrestrial transmission point in the plurality of non-terrestrial transmission points The cell set is used to communicate with the terminal device.
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公开(公告)号：US20240275473A1
公开(公告)日：2024-08-15
申请号：US18647056
申请日：2024-04-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu WANG , Hejia LUO , Yunfei QIAO , Ying CHEN , Ruonan YANG
CPC classification number: H04B7/18519 , H04W36/083
Abstract: A first satellite obtains a parameter for determining an elevation angle for a departure service of the first satellite in a first serving cell. The first satellite sends first indication information to a terminal device, where the first indication information indicates the elevation angle for the departure service of the first satellite in the first serving cell in which the terminal device is located. The terminal device determines an elevation angle of the terminal device relative to the first satellite based on an ephemeris and location information of the terminal device. The terminal device determines the elevation angle for the departure service based on the first indication information, and compares the elevation angle for the departure service with the elevation angle of the terminal device relative to the first satellite, to determine whether to perform satellite reselection or handover.
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Patent Agency Ranking
公开(公告)号：US20240171307A1
公开(公告)日：2024-05-23
申请号：US18512912
申请日：2023-11-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Yinggang DU , Rong LI , Lingchen HUANG , Ying CHEN
IPC: H04L1/00
CPC classification number: H04L1/0057 , H04L1/0071
Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.
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公开(公告)号：US20230232391A1
公开(公告)日：2023-07-20
申请号：US18187223
申请日：2023-03-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG , Jun WANG
IPC: H04W72/044 , H04L5/00 , H04B7/06
CPC classification number: H04W72/046 , H04L5/0091 , H04B7/0695
Abstract: This application provides example beam management methods, apparatus, and systems. In one example method, a terminal device can receive indication information from a network device. The terminal device can perform beam switching according to an arrangement order of transmission configuration indicator (TCI) states (TCI-states) in a second TCI list when the indication information is first indication information. Alternatively, the terminal device can perform beam switching according to a first TCI-state in a first TCI list when the indication information is second indication information, wherein the first TCI list comprises a plurality of TCI-states comprising the first TCI-state, and in the first TCI list, beams corresponding to TCI-states after the first TCI-state are to sequentially provide a service for the terminal device.
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公开(公告)号：US20230037135A1
公开(公告)日：2023-02-02
申请号：US17961812
申请日：2022-10-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Ying CHEN , Jianwei ZHOU , Yinggang DU
IPC: H04B7/185 , H04W74/08 , H04W36/32 , H04W12/037
Abstract: A communication method and apparatus are provided, and relate to the field of wireless communication technologies, to resolve a problem in a conventional technology that communication quality during communication between a satellite and a communication apparatus cannot be ensured, and to ensure security of high-accuracy location information of the satellite. In the method, the communication apparatus may perform random access to the satellite based on first location information. The communication apparatus may perform uplink communication with the satellite based on obtained second location information. Accuracy of a location obtained based on the second location information is higher than accuracy of a location obtained based on the first location information. Based on this solution, required accuracy of location information of the satellite is different.
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公开(公告)号：US20220408389A1
公开(公告)日：2022-12-22
申请号：US17820408
申请日：2022-08-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolu WANG , Hejia LUO , Yunfei QIAO , Yinggang DU , Chenlei XU
IPC: H04W56/00
Abstract: This application provides a method and an apparatus for updating a timing offset, and is particularly applicable to an NTN network such as satellite communication. The terminal side method includes: A terminal receives a timing offset difference ΔKoffset, and updates a timing offset based on the ΔKoffset to obtain an updated timing offset. The network side method includes: A network device determines a timing offset difference ΔKoffset, and sends the ΔKoffset to a terminal device, wherein the ΔKoffset is used for the terminal device to update a timing offset.
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公开(公告)号：US20220386259A1
公开(公告)日：2022-12-01
申请号：US17819441
申请日：2022-08-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying CHEN , Hejia LUO , Xiaolu WANG , Yunfei QIAO , Rong LI , Yinggang DU
Abstract: This application provides a satellite communication method and apparatus. The method includes: A terminal device receives first indication information. The first indication information indicates a validity duration of first parameter information. The first parameter information includes at least one of the following information: a first timing advance, parameter information of the first timing advance, a first frequency offset pre-compensation, or parameter information of the first frequency offset pre-compensation. The terminal device performs uplink communication with a satellite in the validity duration based on the first parameter information. The terminal device can obtain, by receiving the first indication information, a validity duration of parameter information such as the first timing advance, the parameter information of the first timing advance, the first frequency offset pre-compensation, or the parameter information of the first frequency offset pre-compensation.
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