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公开(公告)号：US20230224204A1
公开(公告)日：2023-07-13
申请号：US18175186
申请日：2023-02-27
发明人： Qi Feng , Yuanzhou Hu , Gaoning He , Jianmin Lu
IPC分类号： H04L27/26
CPC分类号： H04L27/2637 , H04L27/264 , H04L27/26025
摘要： This application provides a signal generation method and an apparatus. In the method, a first communication apparatus generates a first signal, and sends the first signal to a second communication apparatus, who receives the first signal, and then demodulates the first signal. A symbol included in the first signal is carried on K+2(M−1) subcarriers. Middle K subcarriers are valid subcarriers, start M−1 subcarriers and last M−1 subcarriers are redundant subcarriers, and a subcarrier spacing between adjacent subcarriers is related to a feature of a time domain pulse used to shape the subcarrier, wherein a width of each of some or all side lobes of a spectrum of the time domain pulse is equal to 1/M of a main lobe width of the time domain pulse, the subcarrier spacing is 1/M of the main lobe width. K is a positive integer, and M is a positive integer greater than 1.
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公开(公告)号：US11184131B2
公开(公告)日：2021-11-23
申请号：US16662736
申请日：2019-10-24
发明人： Yuanzhou Hu , Mengying Ding , Pengpeng Dong , Zongjie Wang
摘要： The present disclosure relates to sending methods and apparatus. One example method includes receiving first indication information for uplink data transmission, where the first indication information indicates a frequency resource for the uplink data transmission, and the frequency resource includes N subcarriers, and sending an uplink reference signal associated with the uplink data transmission, where a length of a sequence of the uplink reference signal is M, a roll-off factor of a filter for the uplink data transmission is not greater than 2 M N - 1 , and N/2≤M
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公开(公告)号：US11139906B2
公开(公告)日：2021-10-05
申请号：US16673978
申请日：2019-11-05
发明人： Yuanzhou Hu , Mengying Ding , Zhongfeng Li
摘要： A wireless communication method includes determining a length of a ZC sequence based on a resource block quantity or a subcarrier quantity corresponding to a system bandwidth and determining a reference signal sequence included in an uplink reference signal based on the length of the ZC sequence and a resource block quantity or a subcarrier quantity corresponding to an allocated user bandwidth that is a part of the system bandwidth. When different communications devices use the same system bandwidth for communication, reference signal sequences used by the different communications devices correspond to the same ZC sequence length. The ZC sequence length is exclusively designed for a resource block quantity or a carrier quantity of the system bandwidth. Generation of the reference signal sequences is related to mapped locations of the reference signal sequences. Therefore, reference signal sequences used by different communications devices have a relatively high cross correlation.
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4.发明授权公开(公告)号：US11818077B2
公开(公告)日：2023-11-14
申请号：US16788031
申请日：2020-02-11
发明人： Mengying Ding , Yuanzhou Hu , Yi Qin , Zhongfeng Li , Min Zhang , Weimin Xiao , Shengyue Dou
IPC分类号： H04L5/00 , H04B7/06 , H04W72/0453
CPC分类号： H04L5/0058 , H04B7/0626 , H04W72/0453
摘要： This application provides a reference signal sending and receiving method, a network device, a terminal device, and a system, to be applicable to resource configuration for an SRS in NR. The method includes: sending, by a terminal device, a sounding reference signal SRS based on a location of a starting subcarrier for transmitting the SRS, where the location of the starting subcarrier for transmitting the SRS is determined by an offset of a sounding region, the offset of the sounding region indicates a resource offset between a starting subcarrier of the sounding region and a starting subcarrier of a bandwidth part BWP of the terminal device, and the sounding region is a resource that can be used to transmit the SRS.
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公开(公告)号：US11368348B2
公开(公告)日：2022-06-21
申请号：US17324873
申请日：2021-05-19
发明人： Yuanzhou Hu , Fan Wang
摘要： A signal transmission method and apparatus are provided, to resolve a problem that because a PAPR of a signal is comparatively high, a waveform distortion of the signal is comparatively serious after power amplification is performed on the signal by using a PA. The method includes: separately performing phase rotation on M pieces of modulated data to obtain M pieces of phase-rotated data, where a phase factor for performing phase rotation on the M pieces of modulated data is determined based on M. The method further includes: determining time domain data based on the M pieces of phase-rotated data, and sending the time domain data to a receive end.
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公开(公告)号：US11018830B2
公开(公告)日：2021-05-25
申请号：US16505298
申请日：2019-07-08
发明人： Yuanzhou Hu , Mengying Ding , Pengpeng Dong , Zongjie Wang
摘要： This application proposes a reference signal transmission method and a device. The method includes: converting, by a sending device, a frequency domain reference signal from frequency domain to time domain, to generate a time domain reference signal, where the frequency domain reference signal includes a reference signal sequence mapped to a frequency domain resource group, the reference signal sequence is related to a Zadoff-Chu sequence and a length of the reference signal sequence, and a length value of the Zadoff-Chu sequence is greater than a quantity of minimum time-frequency resource units included in a maximum frequency domain resource that can be allocated; and sending, by the sending device, the time domain reference signal. According to the reference signal transmission method in this application, a performance requirement on a PAPR/RCM of a reference signal can be met, a quantity of blind reference signal detection times can be reduced, and system performance can be improved.
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公开(公告)号：US12010710B2
公开(公告)日：2024-06-11
申请号：US17244545
申请日：2021-04-29
发明人： Yuanzhou Hu , Mengying Ding , Shuri Liao , Fan Wang
IPC分类号： H04W72/53 , H04J13/00 , H04L27/26 , H04W72/044 , H04W72/21
CPC分类号： H04W72/53 , H04J13/0003 , H04L27/2607 , H04W72/0466 , H04W72/21
摘要： Embodiments of this application provide a communication processing method for a resource request and a related device. In the communication processing method, a terminal side device sends K uplink resource requests on K (K is an integer greater than or equal to 2) uplink channel resources in a transmission time unit (for example, 1 millisecond) to request an uplink resource used for uplink transmission, where cyclic shifts of a code division multiplexing (CDM) sequence used to send the K uplink resource requests on the K uplink channel resources are specific to the terminal side device, or a value of K is specific to the terminal side device, or a combination of the cyclic shifts and K is specific to the terminal side device.
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公开(公告)号：US20220021570A1
公开(公告)日：2022-01-20
申请号：US17491441
申请日：2021-09-30
发明人： Yuanzhou Hu , Fan Wang
摘要： Embodiments of this application provide a data compression method, including: performing first processing on π/2-binary phase shift keying BPSK modulated data with a length of M, to obtain first frequency domain data with a length of M, where the first processing includes Fourier transform, and M is an even number; performing second processing on second frequency domain data with a length of Q, to obtain time domain data, where data in the second frequency domain data is included in the first frequency domain data, Q is a positive integer, M is greater than Q, Q is greater than or equal to M/2, and the second processing includes inverse Fourier transform; and sending the time domain data on one time domain symbol.
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公开(公告)号：US10651969B2
公开(公告)日：2020-05-12
申请号：US16186347
申请日：2018-11-09
发明人： Pengpeng Dong , Yuanzhou Hu , Zongjie Wang
摘要： Method disclosed is applied to an OFDM wireless transmission system which includes at least two OFDM symbols, and includes: adding a zero power padding ZP to a tail end of each of the at least two OFDM symbols; adding data of Nw consecutive points at one end of a first OFDM symbol of the at least two OFDM symbols to the ZP at the other end of the first OFDM symbol, so that the data of the Nw points is a prefix and/or a suffix of the first OFDM symbol, where the first OFDM symbol includes data of N points, N>Nw; and performing point multiplication processing with symmetric time domain window function on the data of the Nw points at the two ends of the first OFDM symbol to which the prefix and/or the suffix is added, so that a sum of point coefficients corresponding to the symmetric time domain window function is 1.
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公开(公告)号：US11546193B2
公开(公告)日：2023-01-03
申请号：US17491441
申请日：2021-09-30
发明人： Yuanzhou Hu , Fan Wang
摘要： Embodiments of this application provide a data compression method, including: performing first processing on π/2-binary phase shift keying BPSK modulated data with a length of M, to obtain first frequency domain data with a length of M, where the first processing includes Fourier transform, and M is an even number; performing second processing on second frequency domain data with a length of Q, to obtain time domain data, where data in the second frequency domain data is included in the first frequency domain data, Q is a positive integer, M is greater than Q, Q is greater than or equal to M/2, and the second processing includes inverse Fourier transform; and sending the time domain data on one time domain symbol.
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