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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
Applicant: Futurewei Technologies, Inc.
Inventor： Jialing Liu , Weimin Xiao , Qian Cheng , Murali Narasimha , Brian Classon
Abstract: 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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公开(公告)号：US10554280B2
公开(公告)日：2020-02-04
申请号：US15139674
申请日：2016-04-27
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Jialing Liu
IPC: H04B7/06
Abstract: Various methods and systems are provided to provide for Channel State Information (CSI) feedback of hybrid beamforming. In a first example embodiment, a method for signaling a beamforming reference signal (BFRS) is provided. A resource block is created for the BFRS, the resource block containing a plurality of resource elements, each resource element defined by a time-frequency resource within one subcarrier and one multiplexing symbol. A total number of analog transmit beams for the BFRS is then determined, along with grouping information for the analog transmit beams for the BFRS. Then, the resource block, the total number of analog beams, and the grouping information are transmitted from a first network controller to a user equipment (UE). Then the BFRS is transmitted from the first network controller to the UE.
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公开(公告)号：US10425900B2
公开(公告)日：2019-09-24
申请号：US15977872
申请日：2018-05-11
Applicant: FutureWei Technologies, Inc.
Inventor： Jialing Liu , Weimin Xiao , Qian Cheng
Abstract: 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：US10411935B2
公开(公告)日：2019-09-10
申请号：US15818599
申请日：2017-11-20
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Jialing Liu
Abstract: A method for reducing a peak to average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) signal. A first signal in the frequency domain is processed to generate a second signal by performing a modular permutation on the first signal according to a modular permutation index, and/or by performing a cyclic shift on the first signal according to a cyclic shift parameter. The second signal is then mapped to a number of tones, and transformed into a time-domain signal for transmission. The modular permutation index and/or the cyclic shift parameter are selected so that the signal for transmission has a PAPR that satisfies a predefined PAPR criteria.
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公开(公告)号：US10321421B2
公开(公告)日：2019-06-11
申请号：US15799932
申请日：2017-10-31
Applicant: FutureWei Technologies, Inc.
Inventor： Majid Ghanbarinejad , Qian Cheng , Lukasz Krzymien , Weimin Xiao
IPC: H04W56/00 , H04W36/04 , H04W36/08 , H04W36/16 , H04W76/15 , H04B7/04 , H04B7/06 , H04B7/0426 , H04W36/36
Abstract: A system and a method for synchronization and link acquisition in cellular wireless systems with directional antennas are disclosed. In an embodiment a method for wireless communication includes synchronizing, by a first network controller, transmission of a first synchronization signal with transmission of a second synchronization signal from another network controller.
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Patent Agency Ranking
46.发明授权公开(公告)号：US10305567B2
公开(公告)日：2019-05-28
申请号：US15800739
申请日：2017-11-01
Applicant: FutureWei Technologies, Inc.
Inventor： Diana Maamari , Hao Zhou , Qian Cheng , Weimin Xiao
Abstract: An embodiment method for beam-related information and channel state information feedback includes receiving first analog beamformed reference signals; transmitting a first report indicating a set of selected analog beamformed reference signals and a transmission rank that jointly maximize a first performance criterion for subsequent transmissions by a transmitter that transmitted the first analog beamformed reference signals; receiving second analog beamformed reference signals maximized in accordance with the set of selected analog beamformed reference signals and the transmission rank; and transmitting a second report, in accordance with the second analog beamformed reference signals, indicating a channel quality indicator and a precoding matrix indicator that maximize a second performance criterion for subsequent transmissions by the transmitter that transmitted the first analog beamformed reference signals and the second analog beamformed reference signals.
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47.发明申请公开(公告)号：US20190074938A1
公开(公告)日：2019-03-07
申请号：US16183527
申请日：2018-11-07
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Philippe Sartori , Jialing Liu
Abstract: Methods for wireless communications over a wideband carrier are provided. Time-frequency resources of the wideband carrier within a transmission time interval are divided into multiple time-frequency resource blocks. Each of the time-frequency resource blocks corresponds to a group of contiguous subcarriers of the wideband carrier and orthogonal frequency division multiplexing symbols. Data streams may be scheduled to be transmitted in different time-frequency resource blocks, and may be destined for different user equipments or the same user equipment. Baseband processing operations may be performed on data streams scheduled in different time-frequency resource blocks independently from one another. Separate control channels or one common control channel may be configured for data transmissions in different time-frequency resource blocks.
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公开(公告)号：US10225380B2
公开(公告)日：2019-03-05
申请号：US15162293
申请日：2016-05-23
Applicant: Futurewei Technologies, Inc.
Inventor： Vipul Desai , Philippe Sartori , Lukasz Krzymien , Carmela Cozzo , Weimin Xiao , Qian Cheng
Abstract: 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：US10206211B2
公开(公告)日：2019-02-12
申请号：US15165649
申请日：2016-05-26
Applicant: Futurewei Technologies, Inc.
Inventor： Weimin Xiao , Qian Cheng , Philippe Sartori , Lukasz Krzymien , Jialing Liu
IPC: H04W4/00 , H04W72/04 , H04L5/00 , H04B7/0413
Abstract: A method for receiving wideband (WB) LTE uplink signals. A base station may signal a first frequency tone assignment to a first user equipment (UE), the first frequency tone assignment scheduling at least a first set of subcarriers allocated to the first UE, subcarriers in the first set of subcarriers being non-contiguous in the frequency domain. Subcarriers in the first set of subcarriers may be interleaved with subcarriers in a second set of subcarriers. The first UE may perform a first single carrier frequency division multiple access (SC-FDMA) uplink transmission over the first set of subcarriers. A second UE may perform a second SC-FDMA uplink transmission, the second SC-FDMA uplink transmission spanning the second set of subcarriers.
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公开(公告)号：US10193604B2
公开(公告)日：2019-01-29
申请号：US15140088
申请日：2016-04-27
Applicant: Futurewei Technologies, Inc.
Inventor： Qian Cheng , Weimin Xiao , Jialing Liu
IPC: H04W24/00 , H04B7/06 , H04B7/0417
Abstract: 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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