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公开(公告)号：US20240284372A1
公开(公告)日：2024-08-22
申请号：US18651367
申请日：2024-04-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Xinghua SONG , Jun WANG
CPC classification number: H04W56/0045 , H04W56/006 , H04W84/06
Abstract: A terminal determines a validity duration of a first parameter and a validity duration of a second parameter. The first parameter includes positioning information of the terminal, and the second parameter includes one or more of the following information: ephemeris information of a serving satellite and common timing advance (TA) information. Then, the terminal determines an invalidation moment of the first parameter and an invalidation moment of the second parameter based on a validation moment of the first parameter, a validation moment of the second parameter, the validity duration of the first parameter, and the validity duration of the second parameter. The terminal updates the first parameter and the second parameter at or before an earlier invalidation moment in the invalidation moment of the first parameter and the invalidation moment of the second parameter. The terminal determines a TA adjustment value based on an updated first parameter and an updated second parameter.
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公开(公告)号：US20240155528A1
公开(公告)日：2024-05-09
申请号：US18413122
申请日：2024-01-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Ruonan YANG , Jun WANG
CPC classification number: H04W56/0045 , H04W24/02 , H04W84/06
Abstract: Embodiments of this application provide a communication method and a communication apparatus, to determine a TA between a first communication apparatus and a second communication apparatus based on TA information between the first communication apparatus and a target reference point, so as to determine TAs between different communication apparatuses in a satellite communication system. In the method, the first communication apparatus first determines the target reference point; the first communication apparatus determines information about a first TA, where the information about the first TA indicates the TA information between the first communication apparatus and the target reference point; and then the first communication apparatus sends first information, where the first information includes the information about the first TA.
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公开(公告)号：US20240031012A1
公开(公告)日：2024-01-25
申请号：US18475456
申请日：2023-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ruonan YANG , Ying CHEN , Rong LI , Jun WANG , Yinggang DU , Yu WANG , Yunfei QIAO
CPC classification number: H04B7/18513 , H04W74/0833 , H04B7/18519
Abstract: A wireless communication includes determining, by a satellite, at least one first signal, sending the at least one first signal to a terminal based on at least one first beam, and receiving a random access request from the terminal. Each first signal of the at least one first signal corresponds to one first beam of the at least one first beam. Each first signal of the at least one first signal includes information about a first geographical location of a center point of the one first beam of the at least one first beam corresponding to each first signal of the at least one first signal. The information about the first geographical location is useable to determine a second beam from the at least one first beam. The random access request includes an identifier of the second beam.
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公开(公告)号：US20230043937A1
公开(公告)日：2023-02-09
申请号：US17961642
申请日：2022-10-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Chenlei XU , Yu WANG , Ying CHEN , Yinggang DU , Jun WANG
Abstract: The technology of this application relates to a random access method, applied to the communication field. The method includes a terminal device sends, to a network device, a first message used to establish a wireless connection, the terminal device receives, a connection response sent by the network device, where the connection response includes information about a first polarization parameter, and when accessing the network device based on the connection response, the terminal device determines, based on the information about the first polarization parameter included in the connection response, whether the terminal device is qualified to access the network device. A dimension, namely, a polarization parameter, is introduced into a random access procedure, so that a preamble capacity is increased, a problem that the network device cannot identify a colliding terminal device is alleviated, and efficiency of establishing a communication connection between the terminal device and the network device is improved.
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公开(公告)号：US20220417817A1
公开(公告)日：2022-12-29
申请号：US17898952
申请日：2022-08-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Yu WANG , Ying CHEN , Xueliang SHI
Abstract: A gateway station switching method and apparatus. When quality of a link from a terminal device to a source gateway station through a satellite is poor, the source gateway station sends third indication information to a target gateway station, so that the target gateway station feeds back second channel quality to the source gateway station, that is, quality of a link from the terminal device to the target gateway station through the satellite. The source gateway station determines, based on the second channel quality and first channel quality that represents the quality of the link from the terminal device to the source gateway station through the satellite, whether to switch the terminal device to the target gateway station.
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Patent Agency Ranking
公开(公告)号：US20220311541A1
公开(公告)日：2022-09-29
申请号：US17729458
申请日：2022-04-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Rong LI , Gongzheng ZHANG , Ying CHEN , Xiaocheng LIU , Jun WANG
Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
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公开(公告)号：US20220263606A1
公开(公告)日：2022-08-18
申请号：US17738632
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Hejia LUO , Yunfei QIAO , Rong LI , Jun WANG
Abstract: Example non-terrestrial network (NTN)-based data transmission methods and apparatus are described. In one example method, a first hybrid automatic repeat request (HARQ) process for data transmission does not use a HARQ transmission manner, and an unused bit in DCI may be multiplexed. The DCI includes a first part of bits indicating a process number of the first HARQ process. Another part of bits of the DCI may indicate the process number or another parameter. The terminal device perform data processing by using the DCI and output processed data, that is, perform data transmission.
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公开(公告)号：US20210234631A1
公开(公告)日：2021-07-29
申请号：US17174794
申请日：2021-02-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng ZHANG , Hejia LUO , Rong LI , Ying CHEN , Yunfei QIAO
Abstract: Embodiments of the application provide a method for rate matching in a wireless communication network. A device obtains K information bits and a target code length M of a polar code, determines, according to a minimum value of a set of values, a mother code length N1, polar encodes the K information bits to obtain an encoded sequence of N1 bits, obtains a target sequence of M bits from the N1 bit encoded sequence, and outputs the M-bit target sequence. When the mother code length N1 is larger than the target code length M, (N1-M) bits of the encoded sequence are punctured or shortened from the N1 bit encoded sequence.
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公开(公告)号：US20210021283A1
公开(公告)日：2021-01-21
申请号：US16914775
申请日：2020-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yue ZHOU , Rong LI , Hejia LUO , Huazi ZHANG , Ying CHEN
Abstract: Embodiments of this application disclose encoding and decoding methods and apparatus related to the communications. One of the methods includes: obtaining, based on polar code rate matching, a subchannel corresponding to a punctured bit or a shortened bit; determine subchannels corresponding to an information bit and a check frozen bit that are different from the subchannel corresponding to the punctured bit or the shortened bit; determining that a subchannel corresponding to a frozen bit that is different from the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the punctured bit or the shortened bit; performing, according to the subchannels corresponding to the information bit and the check frozen bit and the subchannel corresponding to the frozen bit, parity check encoding and polar encoding based on the information bit to obtain encoded information; and sending the encoded information.
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公开(公告)号：US20200350932A1
公开(公告)日：2020-11-05
申请号：US16929621
申请日：2020-07-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ying CHEN , Hejia LUO , Gongzheng ZHANG , Rong LI , Jun WANG
Abstract: This application discloses a data transmission method, apparatus, and system. The method includes: generating a to-be-sent bit sequence, where the to-be-sent bit sequence includes one or more bits in a bit sequence having a length of (N−M), where N is a length of a mother code for polar encoding, M is a length of encoded bits obtained after rate matching is performed on a bit sequence having a length of N, N is m raised to the power of an integer, m is a positive integer greater than 1, M is a positive integer, and N
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