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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：US20250132966A1
公开(公告)日：2025-04-24
申请号：US19003099
申请日：2024-12-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Yunfei QIAO , Tianhang YU , Hejia LUO , Rong LI
Abstract: The disclosure includes a communication method and a communication apparatus. The communication method includes the communication apparatus determining to use a reserved tone, determining a reference signal pattern and a tone reservation (TR) pattern, and performing data transmission based on the reference signal pattern and the TR pattern. The reference signal pattern includes a first reference signal sub-pattern and a second reference signal sub-pattern, and the second reference signal sub-pattern is an offset of the first reference signal sub-pattern in time domain and/or frequency domain. According to the method, a reference signal pattern having a plurality of different sub-patterns may be provided, so that reference signals are unevenly distributed on a bandwidth. In this way, even if a reference signal density is high, a large secondary peak value of a kernel time domain signal generated on a subcarrier used as a reserved tone can be avoided, thereby improving peak-to-average power ratio (PAPR) suppression performance.
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公开(公告)号：US20240357665A1
公开(公告)日：2024-10-24
申请号：US18759351
申请日：2024-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W74/0833 , H04W64/00
CPC classification number: H04W74/0833 , H04W64/003
Abstract: This application relates to communication methods and communication apparatuses. In an example method, a terminal device or a chip in the terminal device obtains first information. The first information is used to determine an access range corresponding to a first signal. In response to determining that the terminal device is located in the access range after a first moment, the terminal device or the chip in the terminal device sends a first random access preamble. The first random access preamble is associated with the first signal.
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公开(公告)号：US20240291586A1
公开(公告)日：2024-08-29
申请号：US18658598
申请日：2024-05-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Gongzheng ZHANG , Hejia LUO , Rong LI , Ying CHEN , Yunfei QIAO
CPC classification number: H04L1/0013 , H03M13/13 , H03M13/6356 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0068
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 N, polar encodes the K information bits to obtain an encoded sequence of N bits, obtains a target sequence of M bits from the N bit encoded sequence, and outputs the M-bit target sequence.
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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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Patent Agency Ranking
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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37.发明申请公开(公告)号：US20220312355A1
公开(公告)日：2022-09-29
申请号：US17830863
申请日：2022-06-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yu WANG , Jianwei ZHOU , Yunfei QIAO , Hejia LUO , Jun WANG
Abstract: The disclosure provides information transmission methods and communication apparatuses. One example method includes that a receiving apparatus receives a synchronization signal and cell-specific information that are sent by a sending apparatus on a first beam, where the cell-specific information includes indication information which indicates whether there is beam-specific information, and the first beam comprises a plurality of second beams. In response to determining that the indication information indicates that there is the beam-specific information, the receiving apparatus receives beam-specific information of second beam of the plurality of second beams, where the beam-specific information is sent by the sending apparatus on the second beam, and the receiving apparatus is within coverage of the second beam. The receiving apparatus performs initial access using the synchronization signal, the cell-specific information, and the beam-specific information.
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公开(公告)号：US20220295434A1
公开(公告)日：2022-09-15
申请号：US17825817
申请日：2022-05-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Chenlei XU , Jianwei ZHOU , Rong LI
Abstract: Example communication methods and apparatus are described. In one example method, a terminal receives a first information by using a serving beam, where the first information indicates a delay compensation parameter corresponding to a target beam. The target beam and the serving beam are different beams. The terminal determines, based on a full timing advance and the delay compensation parameter corresponding to the target beam, a differential timing advance corresponding to the target beam.
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39.发明申请公开(公告)号：US20220264662A1
公开(公告)日：2022-08-18
申请号：US17738461
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Jianwei ZHOU , Xiaolu WANG , Hejia LUO
Abstract: This application discloses a random access preamble configuration method applicable to a satellite network and a communication apparatus. In the method, a random access preamble location offset and duration of a PRACH occasion can be flexibly configured based on features of a satellite system. The method includes: A receiving apparatus receives first indication information, where the first indication information includes indication information used to identify the random access preamble location offset at the physical random access channel PRACH occasion. The receiving apparatus transmits a random preamble based on the first indication information, where the random preamble includes a sequence part and a guard time. Because a communication distance is relatively long and a transmission delay difference between users is relatively large in a satellite communication system, time domain resources occupied by the PRACH occasion can be minimized by using this method.
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公开(公告)号：US20220264417A1
公开(公告)日：2022-08-18
申请号：US17738810
申请日：2022-05-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianwei ZHOU , Hejia LUO , Chenlei XU , Xiaolu WANG , Jun WANG
Abstract: The present disclosure relates to network switching methods and apparatuses. in one example method, a beam that currently provides a service for a terminal device is a first beam. The first beam is generated by a first network device. The first network device obtains user information of the terminal device, and obtains switching information based on the user information. After the first network device sends the switching information to the terminal device, the terminal device can perform beam switching based on the switching information.
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