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公开(公告)号：US20240032116A1
公开(公告)日：2024-01-25
申请号：US18352883
申请日：2023-07-14
发明人： Xiaolu WANG , Hejia LUO , Yinggang DU , Rong LI , Jun WANG
CPC分类号： H04W74/085 , H04W56/0045
摘要： Embodiments of this application provide a parameter transmission method and an apparatus, and relate to the field of wireless communication technologies. In the method, the terminal device may receive first information. The first information may include a time parameter. The time parameter may be used to determine a timing offset. The timing offset includes a second timing offset, and the second timing offset indicates a delay of activation of configuration information. The terminal device determines a delay start duration of a random access response (RAR) window based on the second timing offset.
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公开(公告)号：US20230283350A1
公开(公告)日：2023-09-07
申请号：US18315431
申请日：2023-05-10
发明人： Ying CHEN , Jianwei ZHOU , Hejia LUO , Yu WANG , Jun WANG
IPC分类号： H04B7/06 , H04L5/00 , H04B17/318
CPC分类号： H04B7/0639 , H04L5/0051 , H04B17/328
摘要： Embodiments of this application provide a channel matrix determining method, an apparatus, and a system, relating to the field of communication technologies, to resolve a technical problem that a manner in which a network device determines a precoding matrix based on an existing PMI indicator is not applicable to long-distance communication. The method includes: A terminal device obtains a plurality of reference signals, determines a first channel matrix based on the plurality of reference signals, and feeds back, to a network device, first information indicating some channel elements in the first channel matrix. The terminal device may further receive a downlink signal determined based on the first information and sent by the network device. A channel element in the some channel elements is determined based on signal strength and/or a time-frequency resource of the reference signal.
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公开(公告)号：US20230156822A1
公开(公告)日：2023-05-18
申请号：US18156941
申请日：2023-01-19
发明人： Jianwei ZHOU , Hejia LUO , Chenlei XU , Zhenjun JIANG
IPC分类号： H04W74/08
CPC分类号： H04W74/0841 , H04W74/0891
摘要： This application discloses random access methods and communication apparatuses, and relates to the field of communication technologies. In an example method, after determining a correspondence between scanning periods of different scanning areas within coverage of a synchronization signal block (SSB) beam and random access occasions (ROs), a second communication apparatus sends, through broadcasting, a first message including information about the correspondence. A first communication apparatus receives the first message, determines an RO based on a scanning area in which the first communication apparatus is located and the first message, and initiates random access.
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公开(公告)号：US20230027812A1
公开(公告)日：2023-01-26
申请号：US17953705
申请日：2022-09-27
发明人： Xiaolu WANG , Hejia LUO , Rong LI , Jun WANG
IPC分类号： H04W56/00
摘要： A method and a communication apparatus for determining a timing advance. A downlink signal is received from a network device. A first reference moment of a signal period of the downlink signal is determined, where the first reference moment includes a start receiving moment of the signal period. A first time interval between the start receiving moment and a start moment of a first period in which the terminal is located is determined. Based on the first time interval, determining whether a start sending moment of the signal period is within the first period, and determining the start sending moment, where a period is a duration distributed at an equal interval on a time axis. A timing advance is determined based on the start receiving moment and the start sending moment, and an uplink signal is sent based on the timing advance.
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公开(公告)号：US20220393803A1
公开(公告)日：2022-12-08
申请号：US17886620
申请日：2022-08-12
发明人： Ying CHEN , Hejia LUO , Yunfei QIAO , Rong LI , Jun WANG
摘要： Embodiments of this disclosure provide a hybrid automatic repeat request (HARQ) bitmap information feedback method and a related device. The method includes: A terminal receives indication information from an access network device, where the indication information is used to determine whether HARQ feedback is needed for a transmit block transmitted in a plurality of downlink transmission units. The terminal determines HARQ bitmap information based on the indication information, where the HARQ bitmap information includes HARQ feedback information of at least one target transmission unit, and the target transmission unit indicates a downlink transmission unit that needs HARQ feedback in the plurality of downlink transmission units. The terminal sends the HARQ bitmap information to the access network device. Some embodiments of the present disclosure can reduce feedback resource overheads in an NTN scenario, reduce a communication delay, and improve a communication throughput rate.
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公开(公告)号：US20220386200A1
公开(公告)日：2022-12-01
申请号：US17883388
申请日：2022-08-08
发明人： Xiaolu WANG , Hejia LUO , Rong LI , Bin WANG , Jun WANG
摘要： This application provides example network resource configuration methods and apparatuses. One example method includes receiving configuration information from a network device, where the configuration information includes information of a first threshold corresponding to at least one candidate cell, and the first threshold includes at least one of a Doppler frequency shift threshold, a timing advance TA rate threshold, or a Doppler frequency shift change rate threshold. A target cell is determined from the at least one candidate cell based on the configuration information. A handover to the target cell is initiated.
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公开(公告)号：US20220303051A1
公开(公告)日：2022-09-22
申请号：US17716402
申请日：2022-04-08
发明人： Hejia LUO , Yinggang DU , Rong LI , Lingchen HUANG , Ying CHEN
IPC分类号： H04L1/00
摘要： 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：US20220167297A1
公开(公告)日：2022-05-26
申请号：US17671335
申请日：2022-02-14
发明人： Xiaolu WANG , Hejia LUO , Chenlei XU , Rong LI , Jun WANG
摘要： Example methods and apparatus for determining a timing advance are described. One example method includes obtaining ephemeris information of a satellite, where the ephemeris information includes coordinates of the satellite and an ephemeris error of the satellite. A timing advance is determined according to a preset rule based on the ephemeris information and location information of a terminal device, where the location information includes coordinates of the terminal device and a positioning error of the terminal device. The preset rule is determined by using a first horizontal distance, a first vertical distance, the ephemeris error, and the positioning error.
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公开(公告)号：US20200067531A1
公开(公告)日：2020-02-27
申请号：US16671763
申请日：2019-11-01
发明人： Ying CHEN , Yunfei QIAO , Jun WANG , Gongzheng ZHANG , Hejia LUO , Rong LI , Lingchen HUANG
摘要： Embodiments of this application provide a polar code encoding and decoding method and apparatus. The method includes: obtaining an information bit set from a polar code construction sequence table based on an information bit length and a target code length of to-be-encoded information, where the polar code construction sequence table stores a mapping relationship between an encoding parameter and a construction sequence corresponding to the encoding parameter, the construction sequence is a sequence representing an order of reliability of polarized channels, and the encoding parameter includes at least one of an aggregation level, the target code length, and a mother code length, or the encoding parameter is a maximum mother code length; and performing polarization encoding on the to-be-encoded information based on the to-be-encoded information and the information bit set.
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公开(公告)号：US20200036474A1
公开(公告)日：2020-01-30
申请号：US16578481
申请日：2019-09-23
发明人： Hejia LUO , Yourui HUANGFU , Ying CHEN , Shengchen DAI , Rong Li
IPC分类号： H04L1/00
摘要： Embodiments of this application disclose a resource mapping method and an apparatus. The method includes: network device performs nested-structure mapping on a modulated symbol set to obtain a first resource block, where the modulated symbol set carries downlink control information corresponding to each of at least one user equipment, and modulated symbols of same user equipment that are carried on the first resource block are consecutive; then reconstructs, the first resource block to obtain a second resource block, where modulated symbols of same user equipment that are carried on the second resource block are non-consecutive; and maps the second resource block to a time-frequency resource, so that the user equipment obtains the modulated symbol set based on the time-frequency resource.
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