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公开(公告)号：US11063654B2
公开(公告)日：2021-07-13
申请号：US16845332
申请日：2020-04-10
发明人： Weinan Li , Xiaoran Li , Jian Liang
摘要： A diversity receiver and a terminal are provided. The diversity receiver includes a first main channel and a first diversity channel, the first main channel includes an antenna diplexer and a first main transmission channel, and the first diversity channel includes a tunable bandpass filter and a first diversity receiving channel. The first diversity receiving channel is coupled to a diversity antenna by using the tunable bandpass filter, and the tunable bandpass filter is configured to: adjust a passband bandwidth of the tunable bandpass filter according to a band bandwidth of a first transmit signal generated by the first main transmission channel and a band bandwidth of a first receive signal received from the diversity antenna, and perform bandpass filtering based on the passband bandwidth on the first receive signal.
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公开(公告)号：US20190173564A1
公开(公告)日：2019-06-06
申请号：US16267808
申请日：2019-02-05
发明人： Weinan Li , Xiaoran Li , Jian Liang
摘要： The present application discloses a diversity receiver and a terminal. The diversity receiver includes a first main channel and a first diversity channel, the first main channel includes an antenna diplexer and a first main transmission channel, and the first diversity channel includes a tunable bandpass filter and a first diversity receiving channel. The first diversity receiving channel is coupled to a diversity antenna by using the tunable bandpass filter, and the tunable bandpass filter is configured to: adjust a passband bandwidth of the tunable bandpass filter according to a band bandwidth of a first transmit signal generated by the first main transmission channel and a band bandwidth of a first receive signal received from the diversity antenna, and perform bandpass filtering based on the passband bandwidth on the first receive signal.
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公开(公告)号：US10257015B2
公开(公告)日：2019-04-09
申请号：US15816073
申请日：2017-11-17
发明人： Xun Luo , Jian Liang
摘要： A polar transmitter includes an amplitude path comprising an amplitude signal that corresponds to an amplitude of a vector sum of an in-phase input signal and a quadrature input signal; a phase path comprising a phase modulator configured to phase-modulate a phase signal that corresponds to the phase of the vector sum of the in-phase input signal and the quadrature input signal; a digital power amplifier (DPA) configured to amplify the phase-modulated (PM) input signal based on the amplitude signal; a tunable matching network coupled to an output of the DPA and configured to adjust a load impedance of the DPA; and a controller configured to adjust the matching network based on a look-up table with respect to amplitude and frequency information, where the look-up table indicates a plurality of optimal operation modes of the matching network for specific combinations of amplitude and frequency information.
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公开(公告)号：US20230188994A1
公开(公告)日：2023-06-15
申请号：US17922256
申请日：2021-04-06
发明人： Jian Liang , Zongbao Yu
IPC分类号： H04W12/086 , H04W12/037 , H04W48/16
CPC分类号： H04W12/086 , H04W12/037 , H04W48/16 , H04W84/20
摘要： A router networking method includes a child router that is coupled with an interface of the parent router, to be combined with the parent router, where a network corresponding to the interface is a first network, network isolation exists between the first network and a second network, and the second network is a local area network provided by the parent router. The child router accesses the first network and obtains networking information from the first network, where the networking information is used to access the second network. The child router is unplugged from the interface of the parent router to be detached from the parent router. The child router is coupled with a target interface, where a network corresponding to the target interface is the second network, and the child router accesses the second network based on the networking information using the target interface.
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公开(公告)号：US20190207799A1
公开(公告)日：2019-07-04
申请号：US16295630
申请日：2019-03-07
发明人： Xun Luo , Jian Liang
摘要： A polar transmitter includes an amplitude path comprising an amplitude signal that corresponds to an amplitude of a vector sum of an in-phase input signal and a quadrature input signal; a phase path comprising a phase modulator configured to phase-modulate a phase signal that corresponds to the phase of the vector sum of the in-phase input signal and the quadrature input signal; a digital power amplifier (DPA) configured to amplify the phase-modulated (PM) input signal based on the amplitude signal; a tunable matching network coupled to an output of the DPA and configured to adjust a load impedance of the DPA; and a controller configured to adjust the matching network based on a look-up table with respect to amplitude and frequency information, where the look-up table indicates a plurality of optimal operation modes of the matching network for specific combinations of amplitude and frequency information.
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公开(公告)号：US20230387998A1
公开(公告)日：2023-11-30
申请号：US18446082
申请日：2023-08-08
发明人： Zhi Li , Jian Liang , Peng Gao
IPC分类号： H04B7/06 , H04L5/00 , H04B7/0413
CPC分类号： H04B7/0682 , H04L5/0033 , H04B7/0413
摘要： A communication apparatus and an electronic device for implementing multi-carrier aggregation are provided. The communication apparatus includes a transceiver and an antenna array. The transceiver is coupled to a plurality of radio frequency channels, and the plurality of radio frequency channels are coupled to all antenna units in the antenna array in a one-to-one manner. Each of the plurality of radio frequency channels includes a phase shifter, and the phase shifter is configured to set a phase of a radio frequency signal transmitted in the radio frequency channel. The antenna array includes a plurality of first antenna units and a plurality of second antenna units. The plurality of first antenna units are configured to transmit a plurality of radio frequency signals of a first band, to form a first carrier signal pointing to a first direction.
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公开(公告)号：US20220320712A1
公开(公告)日：2022-10-06
申请号：US17843582
申请日：2022-06-17
发明人： Lei Lu , Jian Liang , Xiuyin Zhang , Jinxu Xu , Huiyang Li , Lian Yang , Wanli Zhan , Zongzhi Gao , Weixi Zhou
摘要： A package antenna apparatus including a package substrate, wherein an antenna array is disposed on the package substrate, and a transceiver chip coupled to the antenna array, where the transceiver chip is fastened to the package substrate, and the transceiver chip has a first pad and a second pad, and a filter disposed on the package substrate, where the filter comprises an input port and an output port, the input port is coupled to the first pad of the transceiver chip, the output port is coupled to the second pad of the transceiver chip, and the filter is configured to filter a signal of the transceiver chip that is input through the input port, and is further configured to output a filtered signal to the transceiver chip through the output port.
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公开(公告)号：US10432579B2
公开(公告)日：2019-10-01
申请号：US15556553
申请日：2015-05-29
发明人： Jian Liang , Jin Li
IPC分类号： H04L29/12 , H04L12/54 , H04L12/781 , H04L12/773
摘要： Embodiments of the present disclosure provide an Internet Protocol address allocation method and a router. The Internet Protocol address allocation method of the present disclosure includes receiving a delegate prefix of an upper-level network device, where the upper-level network device is a network device connected to a wide area network interface of the router; generating a local prefix of the router and a delegate prefix of the router according to the delegate prefix of the upper-level network device; and sending the local prefix of the router and the delegate prefix of the router to a lower-level router of the router. Internet Protocol addresses of devices in a cascaded network can be obtained in the embodiments of the present disclosure.
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公开(公告)号：US09647630B2
公开(公告)日：2017-05-09
申请号：US14310603
申请日：2014-06-20
发明人： Weinan Li , Tao Liu , Jian Liang
CPC分类号： H03H7/383 , H01Q1/242 , H01Q1/50 , H03H7/38 , H03H2007/386
摘要： The present invention provides an antenna impedance matching apparatus, semiconductor chip, and method. The apparatus includes: a semiconductor chip, including multiple adjustable capacitors and multiple switches; and at least one impedance component, located outside the semiconductor chip, where the semiconductor chip is coupled to the at least one impedance component through multiple terminals and coupled to an input terminal and an output terminal of the antenna impedance matching apparatus, the input terminal and the output terminal of the antenna impedance matching apparatus are respectively coupled to a radio frequency circuit and an antenna, the multiple switches are configured to, under control of a control signal, switch a connection between the multiple adjustable capacitors and the at least one impedance component, and values of the multiple adjustable capacitors are adjusted by an adjustment signal, so as to tune impedance matching of the antenna.
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公开(公告)号：US09455854B2
公开(公告)日：2016-09-27
申请号：US14730008
申请日：2015-06-03
发明人： Peng Gao , Nianyong Zhu , Jian Liang
CPC分类号： H04L27/152 , H03L7/18 , H04B1/16 , H04B17/14 , H04B17/21 , H04L7/0331
摘要： The present invention provides a phase-locked loop frequency calibration method and system, where the method includes: performing, within a counting time TCNT[k], frequency counting on a frequency signal that is output in a current working subband by a voltage-controlled oscillator, to obtain a frequency count value FCNT[k], where the current working subband corresponds to a binary value of a current node in a binary search tree; and calculating an error between FCNT[k] and a target frequency count value FCNTTARGET[k], comparing an absolute value of the error with a predetermined value, dynamically adjusting TCNT[k] in a value range of TCNT[k] according to a comparison result, and determining, in combination with a binary search algorithm, a target subband in which the voltage-controlled oscillator works. Such a dynamic calibration method can effectively shorten the calibration time on the whole.
摘要翻译： 本发明提供了一种锁相环频率校准方法和系统，其中该方法包括：在计数时间TCNT [k]内，对通过电压控制的当前工作子带中输出的频率信号进行频率计数 振荡器，以获得频率计数值FCNT [k]，其中当前工作子带对应于二叉搜索树中当前节点的二进制值; 并计算FCNT [k]与目标频率计数值FCNTTARGET [k]之间的误差，将误差的绝对值与预定值进行比较，根据TCNT [k]在TCNT [k]的值范围内动态调整TCNT [k] 比较结果，并结合二进制搜索算法确定压控振荡器工作的目标子带。 这种动态校准方法可以有效地缩短整个校准时间。
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