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公开(公告)号：US10327122B2
公开(公告)日：2019-06-18
申请号：US15600538
申请日：2017-05-19
发明人： Yu Cao , Javad Abdoli , Ming Jia , Jianglei Ma
摘要： A method for operating a machine-type device (MTD) includes determining communications requirements for a machine-type device (MTD), and assigning a first signal waveform selected from a plurality of signal waveforms to the MTD in accordance with the determined communications requirements, wherein each signal waveform has an associated characteristic signal bandwidth.
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公开(公告)号：US20190165845A1
公开(公告)日：2019-05-30
申请号：US16265653
申请日：2019-02-01
发明人： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
IPC分类号： H04B7/06 , H01Q25/00 , H04B7/024 , H04B7/0456
摘要： In accordance with an embodiment, a method of operating a base station configured to communicate with at least one user device includes transmitting a reference signal to the at least one user device, receiving channel quality information from the at least one user device, and forming a beam based on the channel quality information received from the at least one user device.
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公开(公告)号：US10305645B2
公开(公告)日：2019-05-28
申请号：US15811336
申请日：2017-11-13
发明人： Javad Abdoli , Ming Jia , Jianglei Ma
摘要： A unified frame structure for filter bank multi-carrier (FBMC) and orthogonal frequency division multiplexed (OFDM) waveforms may allow FBMC and OFDM frames to be communicated over a common channel without significant inter-frame gaps. The unified frame structure may set an FBMC frame duration to an integer multiple of an OFDM frame element duration to enable alignment of FBMC frames and OFDM frames in the time domain. The unified frame structure may also map control channels in the FBMC and OFDM frames to common resource locations so that the respective control channels are aligned in the time and/or frequency domains. The unified frame structure may also share synchronization channels between FBMC and OFDM frames. Additionally, overhead in an FBMC time division duplexed (TDD) communications channel can be reduced by overlapping time windows appended to FBMC blocks.
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公开(公告)号：US20180352504A1
公开(公告)日：2018-12-06
申请号：US16055941
申请日：2018-08-06
发明人： Jianglei Ma , Peiying Zhu , Ming Jia , Wen Tong
摘要： A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
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公开(公告)号：US20180270748A1
公开(公告)日：2018-09-20
申请号：US15988758
申请日：2018-05-24
发明人： Jianglei Ma , Peiying Zhu , Ming Jia , Wen Tong
摘要： A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
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公开(公告)号：US20180270746A1
公开(公告)日：2018-09-20
申请号：US15987161
申请日：2018-05-23
发明人： Jianglei Ma , Peiying Zhu , Ming Jia , Wen Tong
CPC分类号： H04W48/18 , H04L1/0001 , H04L1/1825 , H04W88/06
摘要： A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
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公开(公告)号：US20180242235A1
公开(公告)日：2018-08-23
申请号：US15960288
申请日：2018-04-23
发明人： Jianglei Ma , Peiying Zhu , Ming Jia , Wen Tong
摘要： A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
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公开(公告)号：US20180234216A1
公开(公告)日：2018-08-16
申请号：US15952035
申请日：2018-04-12
发明人： Jianglei Ma , Ming Jia
CPC分类号： H04L5/001 , H04B7/2615 , H04L5/0023 , H04L5/0028 , H04L5/0035 , H04L5/006 , H04L5/0064 , H04L27/2602 , H04L27/2607 , H04W28/06 , H04W72/00 , H04W72/02 , H04W72/04 , H04W72/042
摘要： Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
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公开(公告)号：US10009209B2
公开(公告)日：2018-06-26
申请号：US14228155
申请日：2014-03-27
发明人： Peiying Zhu , Jianglei Ma , Ming Jia , Wen Tong
CPC分类号： H04L27/2637 , H04L5/0021 , H04L5/0066 , H04L25/03834 , H04L27/2602 , H04L27/264
摘要： A method for operating a device includes determining adaptation criteria for a waveform to be transmitted by a transmitting device over a communications channel towards a receiving device, and adjusting a generalized multi-carrier multiplexing parameter (GMMP) of the waveform in accordance with the adaptation criteria. The method also includes transmitting an indicator of the adjusted GMMP to at least one of the transmitting device and the receiving device.
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公开(公告)号：US09986583B2
公开(公告)日：2018-05-29
申请号：US15248292
申请日：2016-08-26
发明人： Jianglei Ma , Ming Jia
CPC分类号： H04W72/1273 , H04L1/00 , H04L5/0048 , H04L5/14 , H04L25/0226 , H04W24/02 , H04W72/1289
摘要： System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
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