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公开(公告)号：US20240214088A1
公开(公告)日：2024-06-27
申请号：US18598178
申请日：2024-03-07
发明人： Gaoning HE , Lei WANG , Jianbiao XU , Ganghua YANG
IPC分类号： H04B17/318 , H04B17/27
CPC分类号： H04B17/318 , H04B17/27
摘要： This application provides an antenna detection method, an apparatus, a device, and a storage medium. The method includes: A first terminal device sends a first detection signal to a network device. The first detection signal is used to determine at least one first antenna sub-array corresponding to the first terminal device. A plurality of antenna sub-arrays of the network device include the at least one first antenna sub-array. A time interval at which the first detection signal is sent is related to spatial non-stationary coherence time. The first terminal device obtains first information from the network device. The first information indicates to perform information transmission through the at least one first antenna sub-array corresponding to the first terminal device.
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公开(公告)号：US20240162914A1
公开(公告)日：2024-05-16
申请号：US18506447
申请日：2023-11-10
发明人： Luis GARCIA ORDONEZ , Maxime GUILLAUD , Ganghua YANG , Paul FERRAND , Melissa DUARTE GELVEZ , Xu LI
IPC分类号： H03M1/64
CPC分类号： H03M1/64
摘要： A modulo-based ADC implementation is provided and involves converting an input analog signal into phases of other M periodic analog reference signals based on one or more transfer functions, wherein M≥2. The phase of each of the M reference signals comprises a folded signal corresponding to the input analog signal that is amplitude-folded to fall within a required amplitude range. This signal-to-phase conversion allows a modulo operation to be implemented over the input analog signal. Further, the M reference signals are used to obtain M discrete-time digital signals which, in turn, are used to obtain a digital representation of the input analog signal.
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公开(公告)号：US20240137199A1
公开(公告)日：2024-04-25
申请号：US18390615
申请日：2023-12-20
发明人： Ganghua YANG , Haihua SHEN , Wenliang LIANG , Enbo WANG , Jianjun WU
IPC分类号： H04L7/00 , H04B1/7163 , H04B10/2575
CPC分类号： H04L7/0075 , H04B1/7163 , H04B10/2575
摘要： This application provides a clock frequency determining method and a clock frequency determining apparatus. The method includes: An access network device receives a combined optical signal from a radio over fiber RoF device, where the combined optical signal is obtained by coupling an optical signal of a first frequency and an optical signal of a second frequency; the access network device converts the combined optical signal into an electrical signal; and the access network device sets a local clock frequency based on a signal frequency of the electrical signal and a first preset rule, where the signal frequency of the electrical signal is equal to an absolute value of a frequency difference between the first frequency and the second frequency.
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公开(公告)号：US20210314065A1
公开(公告)日：2021-10-07
申请号：US17353461
申请日：2021-06-21
发明人： Hongqiang BAO , Zhipeng ZHAO , Ramin KHAYATZADEH , Ganghua YANG
IPC分类号： H04B10/2507 , H04B10/2575 , H04W88/08 , H04W72/04
摘要： This application provides an example base station for an example wireless communication network and an example method. One example base station includes a central unit and a remote radio unit (RRU). The RRU includes one or more antennas. The RRU is coupled to the central unit via one or more optical transmission fibers. Each optical transmission fiber defines a respective downlink transmission channel for transmitting a respective downlink transmission signal from the central unit to the respective antenna of the RRU. The RRU is configured to provide a respective uplink feedback signal based on the respective downlink transmission signal via an uplink feedback channel to the central unit.
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5.发明申请OFDM SIGNAL MODULATION-DEMODULATION METHOD, DEVICE AND SYSTEM BASED ON COMPRESSED SENSING 有权OFDM信号调制解调方法，基于压缩感知的设备和系统公开(公告)号：US20160072655A1
公开(公告)日：2016-03-10
申请号：US14944010
申请日：2015-11-17
发明人： Hufei ZHU , Ganghua YANG
IPC分类号： H04L27/26
CPC分类号： H04L27/2646 , H03M7/3062 , H04L27/2634 , H04L27/2649
摘要： An OFDM signal modulation method based on compressed sensing is provided, the method includes: acquiring a demodulation parameter of a receiver, where the demodulation parameter includes Tnyq of a periodic square signal of the receiver in sampling, Tnyq is a length of a minimum timeslot during which the periodic square signal maintains a high level or a low level; performing an OFDM modulation on an inputted information symbol to generate an OFDM baseband signal, and controlling a sampling interval TsampleOFDM=Ts/k of the OFDM baseband signal to be integral multiple of Tnyq, where Ts is a duration of valid data in the OFDM baseband signal, and k is the number of sub-carriers in the OFDM baseband signal; and up-converting the OFDM baseband signal and transmitting the processed signal to the receiver. Also provided are a demodulation method, device and system.
摘要翻译： 提供了一种基于压缩感测的OFDM信号调制方法，该方法包括：获取接收机的解调参数，其中解调参数包括采样中接收机的周期性平方信号的Tnyq，Tnyq是最小时隙的长度， 周期性方波信号保持高电平或低电平; 对输入的信息符号执行OFDM调制以产生OFDM基带信号，并且将OFDM基带信号的采样间隔TsampleOFDM = Ts / k控制为Tnyq的整数倍，其中Ts是OFDM基带中的有效数据的持续时间 信号，k是OFDM基带信号中的子载波的数量; 并对OFDM基带信号进行上变频，并将处理的信号发送到接收机。 还提供了一种解调方法，装置和系统。
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公开(公告)号：US20210173037A1
公开(公告)日：2021-06-10
申请号：US17147044
申请日：2021-01-12
发明人： Chengsheng QUE , Ganghua YANG
摘要： The disclosure relates to a method and an apparatus for locating a mobile device in a network system. For each pair of anchor stations, a receiver channel delay difference of receiving times of a first signal transmitted by a different anchor station and received at the anchor stations is determined. This receiver channel delay difference is used for compensating time difference of arrival among the mobile device and the pair of anchor stations. The compensated time difference of arrivals among the mobile device and the pair of anchor stations are used to determine the position of the mobile device.
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公开(公告)号：US20210083772A1
公开(公告)日：2021-03-18
申请号：US17105304
申请日：2020-11-25
发明人： Hongqiang BAO , Ganghua YANG , Zhipeng ZHAO , Huijian ZHANG , Ramin KHAYATZADEH
IPC分类号： H04B10/2575 , H04B10/40 , H04B10/58 , H04W88/08
摘要： A remote radio unit is for a base transceiver station. The remote radio unit includes: a noise generator configured to provide a RF noise signal having predefined statistical properties; a communication interface configured to transmit the RF noise signal as a stimulus signal over a radio-over-fiber uplink channel between the remote radio unit and a central unit of the base transceiver station for determining a pre-distortion of a target signal to be transmitted by the remote radio unit. The communication interface is further configured to receive the pre-distorted target signal over a ROF downlink channel between the remote radio unit and the central unit of the base transceiver station. The remote radio unit also has an antenna for transmitting the pre-distorted target signal received by the communication interface.
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8.发明申请公开(公告)号：US20180324819A1
公开(公告)日：2018-11-08
申请号：US16040246
申请日：2018-07-19
发明人： Yalin LIU , Ganghua YANG , Jun ZHANG , Xiangjiang QIAN
摘要： Embodiments of the present invention disclose a method and an apparatus for transmitting information in a power communications system, and a system. The method is applied to a power communications system that uses at least two frequency bands for wireless communication, frequency band licensing statuses of the at least two frequency bands are different, and the method includes: determining a target frequency band from the at least two frequency bands based on an information type of to-be-sent information and a correspondence between the information type and a frequency band; and sending the to-be-sent information by using the target frequency band.
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