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公开(公告)号：US20220191841A1
公开(公告)日：2022-06-16
申请号：US17646769
申请日：2022-01-03
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：US11240804B2
公开(公告)日：2022-02-01
申请号：US16705643
申请日：2019-12-06
发明人： Javad Abdoli , Zhenfei Tang , Junchao Li , Hao Tang
摘要： A method, system, and device for resource block (RB) indexing in a user equipment (UE) is provided. In an embodiment, the method includes obtaining, at the UE, a UE-independent frequency reference point. The method also includes determining, by the UE, a UE-independent index of an RB according to the UE-independent frequency reference point.
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公开(公告)号：US11219005B2
公开(公告)日：2022-01-04
申请号：US16567417
申请日：2019-09-11
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：US10986586B2
公开(公告)日：2021-04-20
申请号：US16544131
申请日：2019-08-19
发明人： Zhengwei Gong , Javad Abdoli , Mohammadhadi Baligh
IPC分类号： H04W52/24 , H04B17/309 , H04B17/391 , H04B17/327 , H04W52/14
摘要： A method of path loss estimation at a user equipment (UE) comprises receiving a downlink cell-specific signal block comprising a synchronization channel and a broadcasting channel demodulation reference signal; receiving control information indicative of a signal transmission power of the downlink cell-specific signal block; and determining an estimated path loss for the UE based at least in part on the signal transmission power of the downlink cell-specific signal block and a received power of the downlink cell-specific signal block filtered using a layer 3 filtering coefficient.
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公开(公告)号：US10903949B2
公开(公告)日：2021-01-26
申请号：US16407404
申请日：2019-05-09
发明人： Javad Abdoli , Zhenfei Tang
摘要： Devices and methods are provided that include transmitting or receiving data and control signals over an air interface on a plurality of bandwidth part (BWP) groups (BWGs) of a carrier, wherein each BWG comprises a plurality of BWPs and each BWP is a set of contiguous resource blocks (RBs). The control signals are transmitted or received on an active BWP of at least one of the BWGs and the data signals are transmitted or received on active BWPs of at least two of the BWGs. Devices and methods are also provided that include transmitting or receiving data and control signals over an air interface on a plurality of active BWPs of a carrier, wherein each active BWP is a set of contiguous RBs, wherein control signals are transmitted or received on at most one active BWP at a time.
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公开(公告)号：US20200252916A1
公开(公告)日：2020-08-06
申请号：US16839645
申请日：2020-04-03
发明人： Javad Abdoli , Zhenfei Tang
摘要： Methods and devices for configuring an initial active downlink bandwidth part as part of an initial access procedure are provided. In one provided method, a base station broadcasts a synchronization signal block (SSB) that includes a control resource set CORESET) configuration index. The CORESET configuration index is one of a plurality of CORESET configuration indexes, each CORESET configuration index being associated with a respective configuration of a CORESET. Each configuration includes a CORESET frequency size, a CORESET time duration, and a frequency offset of the CORESET with respect to the SSB selected from a set of predefined frequency offsets. The initial active downlink bandwidth part is defined as having the same frequency location and bandwidth as the CORESET. The base station transmits, as part of a physical downlink control channel (PDCCH) within the CORESET, information indicating scheduling of remaining minimum system information (RMSI) in a physical downlink shared channel (POSCH).
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公开(公告)号：US10700837B2
公开(公告)日：2020-06-30
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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8.发明申请公开(公告)号：US20190394074A1
公开(公告)日：2019-12-26
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：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：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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