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公开(公告)号：US12267162B2
公开(公告)日：2025-04-01
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
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：US20240389151A1
公开(公告)日：2024-11-21
申请号：US18787707
申请日：2024-07-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia Luo , Xiaolu Wang , Yu Wang , Jun Wang
IPC: H04W74/0816 , H04W8/22 , H04W56/00 , H04W74/08
Abstract: This application provides a communication method and a communication apparatus, to reduce TA error accumulation caused by an open-loop adjustment manner, reduce intersymbol interference of an uplink signal, and improve stability of a communication system. In the method, a terminal device receives and obtains first configuration information, where the first configuration information includes time domain information of a first transmission opportunity; the terminal device sends a first signal, where the first signal is used to determine TA information; the terminal device obtains the TA information; and the terminal device determines a TA between the terminal device and a network device based on the TA information, where the TA is used for data transmission after a time domain start location corresponding to the time domain information of the first transmission opportunity.
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公开(公告)号：US20240365200A1
公开(公告)日：2024-10-31
申请号：US18767646
申请日：2024-07-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W36/322 , H04W36/083
Abstract: A communication method and apparatus are provided. The method includes: A terminal device obtains first information, where the first information is used for mobility management of ascending-orbit and descending-orbit cells, and the first information is related to a latitude location. The terminal device performs the mobility management based on the first information. According to the method, in a scenario of ascending-orbit and descending-orbit cells in a satellite network, mobility management does not need to be frequently performed with frequency switching of ascending and descending orbits. In this way, efficiency of the mobility management of the terminal device can be improved, and system signaling overheads can also be reduced.
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公开(公告)号：US12119972B2
公开(公告)日：2024-10-15
申请号：US17706291
申请日：2022-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei Zhou , Chenlei Xu , Hejia Luo , Jun Wang
CPC classification number: H04L27/26025 , H04L27/2607 , H04W16/28 , H04W84/06
Abstract: Example signal transmission methods based on satellite communication and apparatus are described. One example method includes: obtaining, by a communication device, carrier attribute information corresponding to a target carrier used to transmit an orthogonal frequency division multiplexing (OFDM) symbol. The carrier attribute information of the target carrier includes subcarrier spacing. The communications device determines a cyclic prefix (CP) length of the OFDM symbol based on the carrier attribute information of the target carrier and a preset correspondence between carrier attribute information and the OFDM symbol. The CP is used to carry first data. The first data is data in the OFDM symbol.
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公开(公告)号：US20240137111A1
公开(公告)日：2024-04-25
申请号：US18400101
申请日：2023-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jingwei Zhang , Tianhang Yu , Hejia Luo , Shengchen Dai , Yunfei Qiao , Rong Li , Jun Wang
IPC: H04B7/185
CPC classification number: H04B7/18532
Abstract: This application discloses a NB-IoT-based communication method and an apparatus, to evolve a NB-IoT communication technology into an NTN. The method is as follows: A terminal device generates an uplink signal, including a superframe which includes a synchronization sequence located in first duration of the superframe and a data frame located in second duration which is after the first duration, the synchronization sequence successively includes a first sequence repeated Ni times and a second sequence repeated N2 times, the second sequence is obtained by multiplying the first sequence by −1, a part of consecutive sequences of the synchronization sequence are used as a first synchronization reference sequence that is obtained based on the second sequence repeated N2 times and one or more first sequences that are sorted from back to front in the first sequence repeated N1 times. The terminal device sends the uplink signal to a network device.
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Patent Agency Ranking
公开(公告)号：US11889563B2
公开(公告)日：2024-01-30
申请号：US17459544
申请日：2021-08-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chenlei Xu , Jianwei Zhou , Hejia Luo , Jun Wang
CPC classification number: H04W74/0841 , H04J13/0062 , H04L27/2607 , H04L27/2663
Abstract: This application provides a random access method and an apparatus. The method includes: receiving, by a terminal device, a broadcast signal; and sending, by the terminal device, a random access signal, where a preamble sequence in the random access signal includes K first symbols and Q second symbols, the first symbol and the second symbol are different from each other, K and Q are integers greater than or equal to 1, K+Q=NSEQ, and NSEQ is a quantity of symbols included in the preamble sequence.
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公开(公告)号：US11791891B2
公开(公告)日：2023-10-17
申请号：US17684730
申请日：2022-03-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu Wang , Yunfei Qiao , Hejia Luo , Xian Meng
CPC classification number: H04B7/18513 , H04B7/18558 , H04B15/00
Abstract: Example communication methods and communication apparatus are described. One example method includes sending a first message by a first satellite to a second satellite. The first message includes information about a frequency reuse scheme. The information about the frequency reuse scheme includes basic unit information. The basic unit information includes central point locations and frequency information of at least N−1 beams. Herein, N is a frequency reuse factor of the first satellite. At least N−1 different pieces of frequency information exist in the frequency information that is of the at least N−1 beams and that is included in the basic unit information. In addition, N is a positive integer greater than or equal to 3.
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公开(公告)号：US20230319751A1
公开(公告)日：2023-10-05
申请号：US18301038
申请日：2023-04-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ying Chen , Jianwei Zhou , Chenlei Xu , Hejia Luo , Jun Wang
IPC: H04W56/00
CPC classification number: H04W56/0045
Abstract: An uplink signal sending and receiving method includes that a first communication apparatus obtains a first timing advance (TA) change rate, and sends an uplink signal in a plurality of first time periods. There is a first time interval between the plurality of first time periods to compensate for a time synchronization drift. A length of the first time interval and a location of the first time interval between the plurality of first time periods are determined based on the first TA change rate, and the first TA change rate is a TA change rate in a communication process of the first communication apparatus.
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公开(公告)号：US20230308219A1
公开(公告)日：2023-09-28
申请号：US18041780
申请日：2021-02-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying Chen , Hejia Luo , Yunfei Qiao , Rong Li , Jun Wang
IPC: H04L1/1812
CPC classification number: H04L1/1812
Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system, and relate to the communication field. This can flexibly configure a HARQ process to improve a data transmission throughput. A specific solution is: A network device sends a first transport block and a first identifier to a terminal. The first identifier is used to indicate whether to switch, from non-hybrid automatic repeat request HARQ transmission to HARQ transmission, a HARQ process in which the first transport block is located. The first identifier is occupied when the HARQ process uses the HARQ transmission. The terminal receives the first transport block and the first identifier from the network device. The first identifier is used to indicate whether to switch, from the non-hybrid automatic repeat request HARQ transmission to the HARQ transmission, the HARQ process in which the first transport block is located.
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公开(公告)号：US20230224843A1
公开(公告)日：2023-07-13
申请号：US18182885
申请日：2023-03-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu Wang , Hejia Luo , Rong Li , Jun Wang
IPC: H04W56/00
CPC classification number: H04W56/005 , H04W56/0015
Abstract: Embodiments of this application provide a timing offset parameter update method, a device, and a system, and relate to the field of communication technologies, to help reduce signaling overheads generated when a network device updates a value of a timing offset parameter. The method includes: A terminal device obtains first information that includes a first reference value and first indication information, where the first indication information indicates an update rule of a timing offset parameter, and the first reference value is an initial value of the timing offset parameter. The terminal device updates a value of the timing offset parameter based on the first information and a timing offset variation, to obtain an updated value of the timing offset parameter, where an absolute value of the timing offset variation is equal to an absolute value of a difference between any two consecutively updated values of the timing offset parameter.
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