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1. 发明公开

EP4250654A1 PHASE NOISE SUPPRESSION METHOD AND RELATED DEVICE 审中-实审
公开(公告)号：EP4250654A1
公开(公告)日：2023-09-27
申请号：EP21905704.9
申请日：2021-12-14
申请人： Huawei Technologies Co., Ltd.
发明人： MA, Qianli , HUANG, Huang , GAO, Kuandong
IPC分类号： H04L27/26 , H04L5/00
摘要： Embodiments of this application disclose a phase noise suppression method and a related apparatus. The method includes: A first device generates a first signal and sends the first signal to a second device, where the first signal includes one or more DFT-s-OFDM signals, one DFT-s-OFDM signal includes P Block-PTRS patterns, one Block-PTRS pattern includes Q PTRSs, and the Q PTRSs include Q (1) real part PTRSs and Q (2) imaginary part PTRSs, where Q (1) is an even number, Q (2) is an odd number, and Q (2) is less than Q(i); or Q (1) is an odd number, Q (2) is an even number, and Q (2) is greater than Q(i); and a central location of location indexes of the Q (1) real part PTRSs is the same as a central location of location indexes of the Q (2) imaginary part PTRSs. By using this method, a phase noise of the first signal may be determined.

2. 发明公开

EP4087204A1 COMMUNICATION METHOD AND APPARATUS 审中-实审
公开(公告)号：EP4087204A1
公开(公告)日：2022-11-09
申请号：EP20921922.9
申请日：2020-12-30
申请人： Huawei Technologies Co., Ltd.
发明人： YAN, Mao , GAO, Kuandong , HUANG, Huang , LIN, Huajiong
IPC分类号： H04L27/26 , H04L1/00
摘要： This application relates to the field of communication technologies, and discloses a communication method and apparatus, to avoid a problem of a signal conflict caused when a plurality of backscatter devices simultaneously reflect signals. The method includes: A backscatter device receives an excitation signal from an exciter. The backscatter device determines a backscatter signal pattern in a backscatter signal pattern set, where the backscatter signal pattern set includes a plurality of backscatter signal patterns, and backscatter reference signals in the plurality of backscatter signal patterns do not overlap in time domain. The backscatter device modulates a backscatter reference signal and a backscatter data signal on the excitation signal based on the determined backscatter signal pattern, to obtain a backscatter signal. The backscatter device sends the backscatter signal to a receiver.

3. 发明公开

EP4054272A1 METHOD AND APPARATUS FOR RANDOM ACCESS 审中-公开
公开(公告)号：EP4054272A1
公开(公告)日：2022-09-07
申请号：EP19954114.5
申请日：2019-11-29
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Huang , SHAO, Hua , YAN, Mao
IPC分类号： H04W74/08
摘要： This application provides a random access method and apparatus. In the method, a terminal device may determine a first random access resource for sending a random access preamble by using reference signal grouping information. This helps the terminal device send the random access preamble to a network device on the first random access resource, thereby improving a random access success rate.

4. 发明公开

EP3962009A1 SYMBOL PROCESSING METHOD AND DEVICE 有权
公开(公告)号：EP3962009A1
公开(公告)日：2022-03-02
申请号：EP20835506.5
申请日：2020-06-11
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Fengwei , HUANG, Huang
IPC分类号： H04L27/06 , H04L25/03
摘要： This application provides a symbol processing method and apparatus. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmitted symbol and a second set corresponding to a second transmitted symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have first complex-valued symbols, and a start location of a first subset including the first complex-valued symbols in the first set is the same as a start location of a second subset including the first complex-valued symbols in the second set; and performing signal processing including a cyclic shift or frequency domain weighting on the first set and the second set, so that the start location and an end location of the first subset respectively correspond to locations preceding and following a first reference point of the first transmitted symbol, and the start location and an end location of the second subset respectively correspond to locations preceding and following a second reference point of the second transmitted symbol. In this application, a guard interval between symbols can be flexibly configured.

5. 发明公开

EP3886480A1 COMMUNICATION METHOD AND DEVICE 审中-实审
公开(公告)号：EP3886480A1
公开(公告)日：2021-09-29
申请号：EP19892155.3
申请日：2019-11-29
申请人： Huawei Technologies Co., Ltd.
发明人： CHEN, Lei , GUAN, Peng , YAN, Mao , HUANG, Huang
IPC分类号： H04W24/02 , H04W24/10 , H04L5/00
摘要： Embodiments of the present invention disclose a communication method and a device. The method is applied to any terminal in a positioning system that includes one or more network devices and one or more terminals. The method includes: A terminal receives a measurement indication from a network device. The terminal receives reference signals from the network device, and measures the reference signals based on the measurement indication, where the reference signals are used for positioning measurement. The terminal sends one or more groups of measurement results to the network device, where reference signals corresponding to each group of measurement results have an association relationship, and the association relationship includes that each group of measurement results is measurement results of a same receive beam. According to the embodiments of the present invention, positioning efficiency can be improved.

6. 发明公开

EP3866372A1 METHOD AND DEVICE FOR DETERMINING MEASUREMENT VALUES OF REFERENCE SIGNALS 审中-公开
公开(公告)号：EP3866372A1
公开(公告)日：2021-08-18
申请号：EP19876499.5
申请日：2019-08-22
申请人： Huawei Technologies Co., Ltd.
发明人： YAN, Mao , HUANG, Huang , SHAO, Hua , CHEN, Lei
IPC分类号： H04L5/00
摘要： This application relates to the field of communications technologies, and provides a method and an apparatus for determining a measured value of a reference signal, to resolve a problem of quantizing a measurement result when different base stations in a positioning system send reference signals to a target terminal by using different waveform parameters, or when a target terminal in a positioning system sends SRSs on different BWPs by using different waveform parameters, thereby improving positioning accuracy. The method includes: A first device receives first configuration information sent by a second device. The first configuration information includes at least one of information about a reference signal, frequency range information of a radio frequency signal, or bandwidth range information. The first device measures a first reference signal set, to obtain a first measured value. The first reference signal set includes at least two reference signals. The first device determines an expansion factor α based on the first configuration information. The first device determines a second measured value based on the first measured value and the expansion factor α.

7. 发明公开

EP3863204A1 METHOD FOR TRANSMITTING SYNCHRONIZATION SIGNAL, NETWORK APPARATUS, AND TERMINAL APPARATUS 审中-公开
公开(公告)号：EP3863204A1
公开(公告)日：2021-08-11
申请号：EP19881175.4
申请日：2019-11-01
申请人： Huawei Technologies Co., Ltd.
发明人： GAO, Kuandong , HUANG, Huang , YAN, Mao , SHAO, Hua
IPC分类号： H04L5/00 , H04W56/00
摘要： Embodiments of this application provide a synchronization signal transmission method, a network device, and a terminal device. The method includes: determining, by a network device, time domain positions for sending m synchronization signal blocks, where the time domain positions are {s1,s2, ..., sm}+n×T, s1 represents a start symbol index of the first synchronization signal block in a time unit, s2 represents a start symbol index of the second synchronization signal block in the time unit, sm represents a start symbol index of an m th synchronization signal block in the time unit, the time unit includes T symbols, m is an integer in [1, T], T is any one of 12, 24, 36, 48, 60, 72, 84, and 96, n represents a value of an index of the time unit, and a value of n is an integer in [1, 157]; and sending, by the network device, the synchronization signal blocks to a terminal device in the time domain positions of the synchronization signal blocks. The technical solutions provided in this application have relatively high flexibility, and can meet, to some extent, a synchronization signal block sending requirement for a high-frequency technology.

8. 发明公开

EP3764698A1 METHOD AND DEVICE FOR DETERMINING REDUNDANCY VERSION OF SYSTEM INFORMATION 有权
公开(公告)号：EP3764698A1
公开(公告)日：2021-01-13
申请号：EP19780879.3
申请日：2019-03-25
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： GAO, Kuandong , HUANG, Huang , YAN, Mao , SHAO, Hua
IPC分类号： H04W48/12
摘要： This application provides a system information redundancy version determining method and apparatus. A communications device determines at least one time-domain resource unit Ux, and determines a redundancy version RVx for system information on the time-domain resource unit Ux according to the time-domain resource unit Ux, where x is an identifier of the time-domain resource unit, the redundancy version RVx satisfies RVx=(Int1(X1/X2 ∗ (Int2(x/M) mod K))) mod L, x is a non-negative integer, X1 and X2 are non-zero real numbers, M is a positive real number, K and L are positive integers, mod indicates a modulo operation, Intl indicates rounding up or rounding down, and Int2 indicates rounding up or rounding down.

9. 发明公开

EP3739980A1 SIGNAL TRANSMISSION METHOD AND DEVICE 审中-公开
公开(公告)号：EP3739980A1
公开(公告)日：2020-11-18
申请号：EP19750814.6
申请日：2019-01-23
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： GAO, Kuandong , HUANG, Huang , YAN, Mao , SHAO, Hua
IPC分类号： H04W68/00
摘要： This application provides a signal transmission method and apparatus. The method includes: receiving, by a terminal device, a paging indication sent by a network device, where the paging indication carries information about a plurality of paging groups; and sending, by the terminal device to the network device based on an association relationship between a paged paging group in the plurality of paging groups and a random access preamble, a random access preamble associated with a paging group in which the terminal device is located. In the foregoing solution, only the paged paging group is associated with the random access preamble, and a paging group that is not paged does not need to be associated with a random access preamble, thereby reducing overheads of random access preambles.

10. 发明授权

EP2999182B1 MULTIPLE-INPUT MULTIPLE-OUTPUT ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING COMMUNICATION SYSTEM AND SIGNAL COMPENSATION METHOD 有权
公开(公告)号：EP2999182B1
公开(公告)日：2020-10-21
申请号：EP13884737.1
申请日：2013-12-24
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Huang
IPC分类号： H04B7/04 , H04J11/00 , H04L25/02 , H04L27/00

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