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41.发明授权公开(公告)号：US11070411B2
公开(公告)日：2021-07-20
申请号：US16553838
申请日：2019-08-28
发明人： Javad Abdoli , Zhenfei Tang
摘要： The middle subcarrier of the baseband OFDM signal of each numerology may need to be shifted appropriately with respect to other numerologies to comply with a nested grid. These shifts can be signalled to the UE with an associated overhead. Methods and systems are provided to reduce overhead for OFDM communication. Reduced overhead can translate into increased bandwidth for the system, and/or reduced power/battery consumption in the UE. A transmitter generates an OFDM signal associated with a first subcarrier spacing of a first numerology (μ), a middle subcarrier frequency of a set of usable resource blocks (RBs) of the first numerology being offset from a carrier frequency by a first offset having a value (k0,xμ) in units of subcarriers, the value of the first offset being defined by a specific formula. The transmitter transmits the OFDM signal according to the first subcarrier spacing and the first offset.
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公开(公告)号：US11039429B2
公开(公告)日：2021-06-15
申请号：US16216191
申请日：2018-12-11
发明人： Javad Abdoli , Zhenfei Tang
摘要： Methods and apparatus are provided for wireless communication in which a downlink control information (DCI) is transmitted in a physical downlink control channel (PDCCH) in a first bandwidth part (BWP). A UE is responsible for determining a starting resource block (RB) for a data transmission allocated by the DCI based on a value of a frequency domain resource allocation field in the DCI, a reference RB, and a reference size of a second BWP. The data transmission can then be transmitted, in the case of, for example, PUSCH, by a UE or received, in the case of, for example, PDSCH.
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公开(公告)号：US20180287750A1
公开(公告)日：2018-10-04
申请号：US15937559
申请日：2018-03-27
发明人： Javad Abdoli , Zhenfei Tang , Jianglei Ma
摘要： Methods and systems for group common control channel implementation and use are provided. An embodiment a method in a base station for signaling group common control channel information is provided. The method includes determining control information common to a group of user equipment (UEs), the control information comprising time-frequency locations for at least one of a plurality of data channels and a plurality of control channels. The control information formatted in a Downlink Control Information (DCI) format. The method also includes encoding the control information in a group common control channel to generate encoded control information. The method also includes transmitting the encoded control information to the group of UEs.
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公开(公告)号：US10084562B2
公开(公告)日：2018-09-25
申请号：US15493671
申请日：2017-04-21
发明人： Javad Abdoli , Ming Jia , Jianglei Ma
CPC分类号： H04J11/0023 , H04L5/0053 , H04L25/03834 , H04L27/2607 , H04L27/264
摘要： A method includes generating, by a transmitter, an original OFDM signal having at least one OFDM symbol, the at least one OFDM symbol having an associated time domain tail; truncating, by the transmitter, at least a portion of the time domain tail to produce a truncated OFDM signal; and transmitting, by the transmitter, the truncated OFDM signal.
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公开(公告)号：US10075315B2
公开(公告)日：2018-09-11
申请号：US15415442
申请日：2017-01-25
发明人： Mikhail Germanovich Bakulin , Gennady Vladimirovich Ovechkin , Vitaly Borisovich Kreyndelin , Javad Abdoli
IPC分类号： H04L27/26 , H04B7/0456 , H04L25/03
CPC分类号： H04L27/2615 , H04B1/69 , H04B7/0465 , H04J13/00 , H04L25/03936
摘要： A method for transmitting data includes modulating data bits with a constellation to produce modulated data symbols, precoding the modulated data symbols to obtain ns groups of precoded samples, where ns is equal to a number of non-zero terms in a sparse code associated with the transmitting device, mapping the ns groups of precoded samples to groups of subcarriers in accordance with the sparse code associated with the transmitting device, to obtain a plurality of subcarrier-mapped samples, transforming the plurality of subcarrier-mapped samples into encoded data symbols, and transmitting the encoded data symbols.
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46.发明授权公开(公告)号：US09992051B2
公开(公告)日：2018-06-05
申请号：US14821575
申请日：2015-08-07
发明人： Usa Vilaipornsawai , Javad Abdoli , Jianglei Ma , Ming Jia
CPC分类号： H04L27/345 , H04L5/0007 , H04L27/2607 , H04L27/2627 , H04L27/34
摘要： Embodiments are provided for guard band utilization for synchronous and asynchronous communications in wireless networks. A user equipment (UE) or a network component transmits symbols on data bands assigned for primary communications. The data bands are separated by a guard band having smaller bandwidth than the data bands. The UE or network component further modulates symbols for secondary communications with a spectrally contained wave form, which has a smaller bandwidth than the guard band. The spectrally contained wave form is achieved with orthogonal frequency-division multiplexing (OFDM) modulation or with joint OFDM and Offset Quadrature Amplitude Modulation (OQAM) modulation. The modulated symbols for the secondary communications are transmitted within the guard band.
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公开(公告)号：US20180054268A1
公开(公告)日：2018-02-22
申请号：US15493671
申请日：2017-04-21
发明人： Javad Abdoli , Ming Jia , Jianglei Ma
IPC分类号： H04J11/00
CPC分类号： H04J11/0023 , H04L5/0053 , H04L25/03834 , H04L27/2607 , H04L27/264
摘要： A method includes generating, by a transmitter, an original OFDM signal having at least one OFDM symbol, the at least one OFDM symbol having an associated time domain tail; truncating, by the transmitter, at least a portion of the time domain tail to produce a truncated OFDM signal; and transmitting, by the transmitter, the truncated OFDM signal.
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公开(公告)号：US09614499B2
公开(公告)日：2017-04-04
申请号：US14222280
申请日：2014-03-21
发明人： Javad Abdoli , Ming Jia , Jianglei Ma
CPC分类号： H03H17/0248 , H03H2017/0072 , H04L25/0384 , H04L27/2634
摘要： A method of designing a truncated filter includes designing a prototype filter with a target frequency response, and selecting a soft truncation function with a roll-off parameter specifying a rate in which the soft truncation function transitions to zero. The method also includes applying the soft truncation function to the prototype filter to produce a truncated filter, and storing the truncated filter to a memory.
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公开(公告)号：US20160365945A1
公开(公告)日：2016-12-15
申请号：US14737336
申请日：2015-06-11
发明人： Mikhail Germanovich Bakulin , Vitaly Borisovich Kreyndelin , Gennady Vladimirovich Ovechkin , Javad Abdoli , Peiying Zhu , Ming Jia
IPC分类号： H04L1/00
CPC分类号： H04L1/0041 , H04L1/0006 , H04L1/0045 , H04L1/203
摘要： A method for operating a transmitting device includes mapping data to a transmission symbol in accordance with a constellation map assigned to a receiving device, wherein the constellation map is designed in accordance with a posteriori error rate derived from a transmitted signal, and transmitting the transmission symbol.
摘要翻译： 一种用于操作发送设备的方法包括：根据分配给接收设备的星座图将数据映射到传输符号，其中根据从发送信号导出的后验错误率来设计星座图，并且发送传输符号 。
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50.发明公开公开(公告)号：US20240205062A1
公开(公告)日：2024-06-20
申请号：US18585977
申请日：2024-02-23
发明人： Javad Abdoli , Zhenfei Tang
IPC分类号： H04L27/26 , H04L5/00 , H04W52/02 , H04W72/0453 , H04W74/0833
CPC分类号： H04L27/2605 , H04L5/0007 , H04L27/2657 , H04W52/0261 , H04W72/0453 , H04W74/0833
摘要： The middle subcarrier of the baseband OFDM signal of each numerology may need to be shifted appropriately with respect to other numerologies to comply with a nested grid. These shifts can be signalled to the UE with an associated overhead. Methods and systems are provided to reduce overhead for OFDM communication. Reduced overhead can translate into increased bandwidth for the system, and/or reduced power/battery consumption in the UE. A transmitter generates an OFDM signal associated with a first subcarrier spacing of a first numerology (μ), a middle subcarrier frequency of a set of usable resource blocks (RBs) of the first numerology being offset from a carrier frequency by a first offset having a value (k0,xμ) in units of subcarriers, the value of the first offset being defined by a specific formula. The transmitter transmits the OFDM signal according to the first subcarrier spacing and the first offset.
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