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公开(公告)号：US20230247576A1
公开(公告)日：2023-08-03
申请号：US18191591
申请日：2023-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hejia LUO , Xiaolu WANG , Jianwei ZHOU , Ying CHEN , Chenlei XU , Jun WANG
IPC: H04W56/00 , H04W72/0453 , H04W72/1268
CPC classification number: H04W56/0035 , H04W72/0453 , H04W72/1268
Abstract: Example frequency compensation methods and apparatus are described. One example method includes determining first information and sending the first information by a network device to a terminal device, where the first information indicates a frequency compensation manner of an uplink signal of the terminal device or the first information indicates a configuration parameter of the terminal device. The terminal device receives the first information, and determines, based on the first information, the frequency compensation manner to be used to send the uplink signal. The terminal device performs frequency compensation for the uplink signal based on the frequency compensation manner.
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公开(公告)号：US20220330350A1
公开(公告)日：2022-10-13
申请号：US17832880
申请日：2022-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Jianwei ZHOU , Chenlei XU , Bin WANG , Rong LI
Abstract: The present disclosure relates to random access preamble transmission methods, apparatuses, and storage mediums. In one example method, a terminal device determines, based on a target sub-coverage area to which the terminal device belongs in a preset coverage area of a network device, target random access preamble format information corresponding to the target sub-coverage area. Then, the terminal device sends, to the network device on a target time-frequency resource indicated by target random access preamble time-frequency resource information corresponding to the target random access preamble format information, a random access preamble corresponding to the target random access preamble format information.
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公开(公告)号：US20220225432A1
公开(公告)日：2022-07-14
申请号：US17706202
申请日：2022-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Jianwei ZHOU , Chenlei XU
Abstract: One example method includes that a terminal device determines first random access information associated with a first synchronization broadcast block and associated with a beam parameter of a satellite beam, where the beam parameter is used to distinguish the satellite beam. The terminal sends a preamble to a satellite based on the first random access information. The satellite receives the preamble from the terminal, and determines the first random access information. The satellite determines the first SSB and the beam parameter of the satellite beam that are associated with the first random access information.
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公开(公告)号：US20220225424A1
公开(公告)日：2022-07-14
申请号：US17707299
申请日：2022-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Chenlei XU , Jianwei ZHOU , Rong LI
IPC: H04W74/08 , H04L43/0864 , H04W74/00
Abstract: This disclosure provides data processing methods. One example including a network device obtains target information that includes a transmission delay difference corresponding to a target beam or a target cell; determines a first preamble format based on the transmission delay difference, and then determines first configuration information used to indicate the first preamble format and a first set of random access occasions included in a random access period, where an interval between random access times included in the first set of random access occasions is greater than or equal to a preamble length corresponding to the first preamble format; and generates a corresponding first configuration index based on the first configuration information. The preamble formats required for different beams or cells can be determined based on transmission delay differences corresponding to the different beams or cells, and then configuration information of a random access occasion is further determined.
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公开(公告)号：US20220224463A1
公开(公告)日：2022-07-14
申请号：US17707815
申请日：2022-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Hejia LUO , Jianwei ZHOU , Xiaolu WANG
Abstract: Example satellite communication methods and example related devices are provided. One example satellite communication method includes generating a random access preamble sequence, where the random access preamble sequence includes a cyclic prefix, a sequence part, and a guard interval, the sequence part is obtained by performing frequency domain resource mapping and time-frequency transformation on a frequency domain sequence, and the frequency domain sequence is obtained based on a Zadoff-Chu (ZC) sequence and a mask sequence. The random access preamble sequence can then be output.
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Patent Agency Ranking
公开(公告)号：US20220224404A1
公开(公告)日：2022-07-14
申请号：US17707558
申请日：2022-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chenlei XU , Jianwei ZHOU , Hejia LUO , Xiaolu WANG
Abstract: The disclosure provides satellite communication methods and related devices. One example method includes generating a random access preamble sequence which includes a cyclic prefix, a sequence part, and a guard interval. The sequence part includes a subsequence A and a subsequence B, or the sequence part includes a subsequence C, and the subsequence C is a time domain superimposed sequence of a subsequence A and a subsequence B. The subsequence A includes at least one preamble symbol, the subsequence B includes at least one preamble symbol, and the subsequence A and the subsequence B are respectively generated by using ZC sequences of different root indexes, a quantity of subsequences A is m, a quantity of subsequences B is m or m−1, and m is a positive integer. The method further includes outputting the random access preamble sequence.
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公开(公告)号：US20250151124A1
公开(公告)日：2025-05-08
申请号：US19018590
申请日：2025-01-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chuili KONG , Ying CHEN , Xiaolu WANG , Yu WANG , Yinggang DU
IPC: H04W74/0833 , H04W76/38
Abstract: This application provides a random access method, an apparatus, and a system, which are applied to the field of communication technologies. The random access method provided in this application includes: First, a terminal device obtains first configuration information, where the first configuration information indicates a maximum quantity of repeated sending times of a preamble, and the maximum quantity of repeated sending times of the preamble is greater than 200. Then, the terminal device sends one or more preambles to a network device based on the first configuration information. According to the method, a current maximum quantity of repeated sending times of the preamble is extended, so that a decoding threshold for decoding the preamble by the network device is reduced, and a low uplink budget requirement of some scenarios can be met.
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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：US20250047367A1
公开(公告)日：2025-02-06
申请号：US18925557
申请日：2024-10-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hui WANG , Shuri LIAO , Shengyue DOU , Jiayin ZHANG , Xiaolu WANG
Abstract: An ephemeris information indication method and an apparatus are provided. In the method, a terminal device receives ephemeris information in a time window, where the ephemeris information corresponds to a system information modification period in which the time window is located. The terminal device determines, based on the system information modification period and a start position of the system information modification period, the system information modification period in which the time window is located. The terminal device determines the ephemeris information reference time based on an end position of a 1st time window in the system information modification period in which the time window is located.
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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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