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公开(公告)号：US20240023037A1
公开(公告)日：2024-01-18
申请号：US18474583
申请日：2023-09-26
发明人： Jialing Liu , Weimin Xiao , Qian Cheng
CPC分类号： H04W56/00 , H04L5/0098 , H04W56/0015 , H04W72/20 , H04L5/001 , H04L5/0051 , Y02D30/70
摘要： An embodiment communication system and method adaptively use a secondary cell under the control of a primary cell for communicating with a user device. The secondary cell and the user device communicate based on instructions provided to both by the primary cell. To reduce interference and minimize power usage, the communications channel for the secondary cell is normally off.
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32.发明公开公开(公告)号：US20230396376A1
公开(公告)日：2023-12-07
申请号：US18330813
申请日：2023-06-07
发明人： Qian Cheng , Weimin Xiao , Jialing Liu , Murali Narasimha
CPC分类号： H04L5/0023 , H04L5/0048 , H04L5/0051 , H04L5/0007 , H04L5/0057 , H04L27/2613
摘要： A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.
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公开(公告)号：US20230269050A1
公开(公告)日：2023-08-24
申请号：US18167565
申请日：2023-02-10
发明人： Qian Cheng , Weimin Xiao , Jialing Liu
CPC分类号： H04L5/0051 , H04L5/0091 , H04L27/2614 , H04L27/2613 , H04L5/0055 , H04L5/0044 , H04L5/0007
摘要： An embodiment method for managing uplink transmission includes dividing, by a network controller, frequency resources in a single OFDM symbol into two sets of frequency resources. The method further includes signaling, by the network controller, to a UE to transmit data in a first set of the frequency resources and to transmit a pilot signal in a second set of the frequency resources.
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公开(公告)号：US20230011657A1
公开(公告)日：2023-01-12
申请号：US17947510
申请日：2022-09-19
发明人： Jialing Liu , Qian Cheng , Weimin Xiao
IPC分类号： H04W74/08 , H04J11/00 , H04W24/10 , H04W48/10 , H04W48/18 , H04W48/16 , H04W48/20 , H04W52/24 , H04W76/27 , H04W52/50 , H04W74/00 , H04W52/40 , H04W56/00 , H04W76/11
摘要： According to an aspect of the present disclosure, a method includes receiving, by a user equipment (UE) from a first base station, on a first carrier, a synchronization sequence (SS) and performing a radio resource management (RRM) measurement in accordance with the SS. The method also includes performing cell selection and mobility support in accordance with the RRM measurement, when the UE is in idle mode and generating an RRM measurement report in accordance with the RRM measurement and transmitting, by the UE to the first base station on the first carrier, the RRM measurement report, when the UE is in connected mode.
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公开(公告)号：US11452136B2
公开(公告)日：2022-09-20
申请号：US15648340
申请日：2017-07-12
发明人： Jialing Liu , Qian Cheng , Weimin Xiao
IPC分类号： H04J11/00 , H04W24/10 , H04W48/10 , H04W48/16 , H04W48/18 , H04W48/20 , H04W52/24 , H04W52/40 , H04W52/50 , H04W56/00 , H04W74/00 , H04W74/08 , H04W76/11 , H04W76/27 , H04W92/10
摘要： A that includes receiving, by a user equipment (UE) from a first base station, on a first carrier, a synchronization sequence (SS) and performing a radio resource management (RRM) measurement in accordance with the SS. The method also includes performing cell selection and mobility support in accordance with the RRM measurement, when the UE is in idle mode and generating an RRM measurement report in accordance with the RRM measurement and transmitting, by the UE to the first base station on the first carrier, the RRM measurement report, when the UE is in connected mode.
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公开(公告)号：US11005628B2
公开(公告)日：2021-05-11
申请号：US15206219
申请日：2016-07-08
发明人： Qian Cheng , Weimin Xiao , Jialing Liu
摘要： An embodiment method for managing uplink transmission includes dividing, by a network controller, frequency resources in a single OFDM symbol into two sets of frequency resources. The method further includes signaling, by the network controller, to a UE to transmit data in a first set of the frequency resources and to transmit a pilot signal in a second set of the frequency resources.
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公开(公告)号：US20210105053A1
公开(公告)日：2021-04-08
申请号：US17124959
申请日：2020-12-17
发明人： Qian Cheng , Weimin Xiao , Jialing Liu
IPC分类号： H04B7/06
摘要： In a first example embodiment, a control transmission portion of a mmWave communication is received at a user equipment. The control transmission portion is divided into a plurality of control transmission portion sub-regions, each sub-region scheduling a data transmission for a corresponding sub-region of a data transmission portion of the mmWave communication. Then a first of the control transmission portion sub-regions is demodulated and decoded. A receive analog antenna beamforming is armed according to the demodulated and decoded first of the control transmission portion sub-regions. Beamforming is performed on a first sub-region of the data transmission portion of the mmWave communication, the first sub-region of the data transmission portion corresponding to the first of the control transmission portion sub-regions. During the arming and performing, a second of the control transmission portion sub-regions is demodulated and decoded.
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公开(公告)号：US20200275382A1
公开(公告)日：2020-08-27
申请号：US16872975
申请日：2020-05-12
发明人： Jialing Liu , Weimin Xiao , Qian Cheng
摘要： A method for operating a user equipment (UE) includes receiving at least one of a configuration of a first group of one or more downlink (DL) signals, a configuration of a second group of one or more open-loop power control (PC) parameters, a configuration of a third group of one or more closed-loop PC parameters, or a configuration of a fourth group of one or more loop states, receiving a configuration of a PC setting, wherein the PC setting is associated with at least one of a subset of the first group, a subset of the second group, a subset of the third group, or a subset of the fourth group, selecting a transmit power level in accordance with the PC setting and a pathloss, wherein the pathloss is determined in accordance with a DL reference signal (SS) and a synchronization signal (SS).
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公开(公告)号：US10757233B2
公开(公告)日：2020-08-25
申请号：US16242851
申请日：2019-01-08
发明人： Vipul Desai , Philippe Sartori , Lukasz Krzymien , Carmela Cozzo , Weimin Xiao , Qian Cheng
摘要： System and method embodiments are provided for a subframe structure for wideband LTE. In an embodiment, a method in a communications controller for transmitting a packet to a wireless device includes signaling a UL/DL configuration to the wireless device, wherein the UL/DL configuration indicates a quantity of uplink microframes in a group of microframes, wherein each subframe includes a plurality of microframes, and wherein the group of microframes includes a consecutive sequence downlink microframes and a consecutive sequence of uplink microframes. The packet is transmitted to the wireless device in one downlink microframe. The method further includes receiving an acknowledgement of the packet in an uplink microframe, wherein the uplink microframe is determined in accordance with the one downlink microframe and the uplink-downlink configuration, and wherein the acknowledgement is received in a same subframe as a subframe utilized for transmitting the packet to the wireless device.
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公开(公告)号：US10693610B2
公开(公告)日：2020-06-23
申请号：US16053542
申请日：2018-08-02
发明人： Jialing Liu , Weimin Xiao , Qian Cheng , Murali Narasimha , Brian Classon
摘要： User Equipments (UEs) may be assigned a set of aggregated component carriers for downlink carrier aggregation and/or carrier selection. Some UEs may be incapable of transmitting uplink signals over all component carriers in their assigned set of aggregated component carriers. In such scenarios, a UE may need to perform SRS switching in order to transmit SRS symbols over all of the component carriers. Embodiments of this disclosure provide various techniques for facilitating SRS switching. For example, a radio resource control (RRC) message may be used to signal a periodic SRS configuration parameter. As another example, a downlink control indication (DCI) message may be used to signal an aperiodic SRS configuration parameter. Many other examples are also provided.
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