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1. 发明授权

US09473294B2 Radio transceiver having frequency synthesizer 有权
标题翻译：射频收发器具有频率合成器
公开(公告)号：US09473294B2
公开(公告)日：2016-10-18
申请号：US14433020
申请日：2013-10-02
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Lars Sundstrom , Anders Wallen , Henrik Sjoland
IPC分类号： H04B1/401 , H04L7/033 , H04B1/00 , H04B1/403 , H04W88/06
CPC分类号： H04L7/0331 , H04B1/0067 , H04B1/401 , H04B1/406 , H04W88/06
摘要： A radio transceiver is disclosed. It comprises a first transceiver circuit and a second transceiver circuit, the latter requiring an LO signal having higher LO frequency than the former. It further comprises a frequency synthesizer comprising a first clock-signal generator adapted to generate the LO signal for the first transceiver circuit based on a first reference oscillation signal and a second clock-signal generator adapted to generate the LO signal for the second transceiver circuit based on a second reference oscillation signal, which is or is derived from the LO signal for the first transceiver circuit. A radio communication apparatus comprising the radio transceiver is also disclosed.
摘要翻译：公开了一种无线电收发器。它包括第一收发器电路和第二收发器电路，后者需要具有比前者更高的LO频率的LO信号。它还包括频率合成器，其包括第一时钟信号发生器，其适于基于第一参考振荡信号产生用于第一收发器电路的LO信号，以及适于基于第二收发器电路生成LO信号的第二时钟信号发生器在第二参考振荡信号上，该第二参考振荡信号是或从第一收发器电路的LO信号导出的。还公开了包括无线电收发器的无线电通信装置。

2. 发明申请

US20140364073A1 TRANSCEIVER, METHOD, COMPUTER PROGRAM AND COMMUNICATION DEVICE 有权
标题翻译：收发器，方法，计算机程序和通信设备
公开(公告)号：US20140364073A1
公开(公告)日：2014-12-11
申请号：US14373419
申请日：2013-01-25
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sjoland , Stefan Andersson , Imad ud Din , Johan Wernehag
IPC分类号： H04B1/40
CPC分类号： H04B1/40 , H04B1/525
摘要： A transceiver is disclosed comprising a transmitter; a receiver; and a signal transmission arrangement. The transmitter comprises a power amplifier, and the signal transmission arrangement is arranged to transmit signals provided from the transmitter through its power amplifier, and arranged to receive signals and provide them to the receiver. The transceiver further comprises an auxiliary power amplifier which has controllable phase shift and gain; a first impedance element; a second impedance element; and a controller. The auxiliary power amplifier has its input connected to the input of the power amplifier of the transmitter, the first impedance element is connected between an output of the auxiliary power amplifier and an input of the receiver, the second impedance element is connected between an output of the power amplifier of the transmitter and the input of the receiver, and the controller is arranged to control the auxiliary power amplifier to provide a signal that has a phase and amplitude in relation to the output of the power amplifier of the transmitter and the impedances of the first and second impedance elements such that the transmitter contribution at the input of the receiver is suppressed. A method, computer program and communication device is also disclosed.
摘要翻译：公开了一种收发器，包括发射机; 接收器和信号传输装置。发射机包括功率放大器，并且信号传输装置被布置为通过其功率放大器传送从发射机提供的信号，并且被布置成接收信号并将其提供给接收机。收发器还包括具有可控相移和增益的辅助功率放大器; 第一阻抗元件; 第二阻抗元件; 和控制器。辅助功率放大器的输入端连接到发射机的功率放大器的输入端，第一阻抗元件连接在辅助功率放大器的输出端和接收器的输入端之间，第二阻抗元件连接在发射器的功率放大器和接收器的输入端，并且控制器被布置成控制辅助功率放大器以提供相对于发射机的功率放大器的输出具有相位和幅度的信号，第一和第二阻抗元件使得在接收器的输入处的发射器贡献被抑制。还公开了一种方法，计算机程序和通信设备。

3. 发明授权

US09774365B2 Transceiver front-end 有权
公开(公告)号：US09774365B2
公开(公告)日：2017-09-26
申请号：US14646868
申请日：2012-11-22
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Carl Bryant , Jonas Lindstrand , Henrik Sjoland
IPC分类号： H04B1/525 , H04L5/14
CPC分类号： H04B1/525 , H04L5/14
摘要： A transceiver front-end for a communication device is connectable at a signal transmission and reception arrangement node to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable at a transmitter node to a transmitter adapted to produce the transmit signal and at a receiver node to a receiver adapted to process the receive signal. The transceiver front-end comprises a transformer, wherein the transmitter node is connected to a first node of a first side of the transformer, the receiver node is connected to a first node of a second side of the transformer, and the signal transmission and reception arrangement node is connected to a second node of the first side of the transformer and to a second node of the second side of the transformer. The transceiver front-end also comprises a first tunable capacitance connected between the transmitter node and the receiver node, and a second tunable capacitance connected between the signal transmission and reception arrangement node and a signal reference level. Corresponding transceiver, communication device and method are also disclosed.

4. 发明申请

US20150270864A1 TRANSCEIVER FRONT-END 有权
标题翻译：收发器前端
公开(公告)号：US20150270864A1
公开(公告)日：2015-09-24
申请号：US14646868
申请日：2012-11-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Carl Bryant , Jonas Lindstrand , Henrik Sjoland
IPC分类号： H04B1/525 , H04L5/14
CPC分类号： H04B1/525 , H04L5/14
摘要： A transceiver front-end for a communication device is connectable at a signal transmission and reception arrangement node to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable at a transmitter node to a transmitter adapted to produce the transmit signal and at a receiver node to a receiver adapted to process the receive signal. The transceiver front-end comprises a transformer, wherein the transmitter node is connected to a first node of a first side of the transformer, the receiver node is connected to a first node of a second side of the transformer, and the signal transmission and reception arrangement node is connected to a second node of the first side of the transformer and to a second node of the second side of the transformer. The transceiver front-end also comprises a first tunable capacitance connected between the transmitter node and the receiver node, and a second tunable capacitance connected between the signal transmission and reception arrangement node and a signal reference level. Corresponding transceiver, communication device and method are also disclosed.
摘要翻译：用于通信设备的收发器前端可在信号发送和接收装置节点处连接到适于发送具有发射频率的发射信号并且接收具有接收频率的接收信号的信号发射和接收装置。收发机前端还可以在发射机节点处连接到适于产生发射信号的发射机，并且在接收机节点处可适配于处理接收信号的接收机。收发机前端包括变压器，其中发射机节点连接到变压器的第一侧的第一节点，接收器节点连接到变压器的第二侧的第一节点，并且信号的发送和接收布置节点连接到变压器第一侧的第二节点和变压器第二侧的第二节点。收发器前端还包括连接在发送器节点和接收器节点之间的第一可调电容，以及连接在信号发送和接收装置节点与信号参考电平之间的第二可调电容。还公开了相应的收发器，通信设备和方法。

5. 发明授权

US10084506B2 Transceiver front-end 有权
公开(公告)号：US10084506B2
公开(公告)日：2018-09-25
申请号：US14440893
申请日：2013-11-07
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sjoland , Stefan Andersson , Imad ud Din , Johan Wernehag
IPC分类号： H04B1/48 , H04B1/525
CPC分类号： H04B1/48 , H04B1/525 , H04B2001/485
摘要： A transceiver front-end for a communication device is connectable to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable to a transmitter adapted to produce the transmit signal, and to a receiver adapted to process the receive signal. The transceiver front-end comprises a transmit frequency suppression filter arrangement and a receive frequency suppression filter arrangement. The transmit frequency suppression filter arrangement is adapted to suppress transfer of a signal having the transmit frequency and to pass a signal having the receive frequency. The receive frequency suppression filter arrangement is adapted to suppress transfer of a signal having the receive frequency and to pass a signal having the transmit frequency. The transceiver front-end also comprises a transmit frequency cancellation arrangement and a receive frequency cancellation arrangement. The transmit frequency cancellation arrangement is adapted to produce a first cancellation signal for cancellation, at receiver nodes, of a suppressed signal having the transmit frequency, transferred by the transmit frequency suppression filter arrangement. The receive frequency cancellation arrangement is adapted to produce a second cancellation signal for cancellation, at signal transmission and reception arrangement nodes of a suppressed signal having the receive frequency, transferred by the receive frequency suppression filter arrangement. Corresponding transceiver, communication device and method are also disclosed.

6. 发明授权

US09344139B2 Transceiver, method, computer program and communication device 有权
标题翻译：收发器，方法，计算机程序和通信设备
公开(公告)号：US09344139B2
公开(公告)日：2016-05-17
申请号：US14373419
申请日：2013-01-25
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sjoland , Stefan Andersson , Imad ud Din , Johan Wernehag
IPC分类号： H04B1/38 , H04B1/40 , H04B1/525
CPC分类号： H04B1/40 , H04B1/525
摘要： A transceiver is disclosed comprising a transmitter; a receiver; and a signal transmission arrangement. The transmitter comprises a power amplifier, and the signal transmission arrangement is arranged to transmit signals provided from the transmitter through its power amplifier, and arranged to receive signals and provide them to the receiver. The transceiver further comprises an auxiliary power amplifier which has controllable phase shift and gain; a first impedance element; a second impedance element; and a controller. The auxiliary power amplifier has its input connected to the input of the power amplifier of the transmitter, the first impedance element is connected between an output of the auxiliary power amplifier and an input of the receiver, the second impedance element is connected between an output of the power amplifier of the transmitter and the input of the receiver, and the controller is arranged to control the auxiliary power amplifier to provide a signal that has a phase and amplitude in relation to the output of the power amplifier of the transmitter and the impedances of the first and second impedance elements such that the transmitter contribution at the input of the receiver is suppressed. A method, computer program and communication device is also disclosed.
摘要翻译：公开了一种收发器，包括发射机; 接收器和信号传输装置。发射机包括功率放大器，并且信号传输装置被布置为通过其功率放大器传送从发射机提供的信号，并且被布置成接收信号并将其提供给接收机。收发器还包括具有可控相移和增益的辅助功率放大器; 第一阻抗元件; 第二阻抗元件; 和控制器。辅助功率放大器的输入端连接到发射机的功率放大器的输入端，第一阻抗元件连接在辅助功率放大器的输出端和接收器的输入端之间，第二阻抗元件连接在发射器的功率放大器和接收器的输入端，并且控制器被布置成控制辅助功率放大器以提供相对于发射机的功率放大器的输出具有相位和幅度的信号，第一和第二阻抗元件使得在接收器的输入处的发射器贡献被抑制。还公开了一种方法，计算机程序和通信设备。

7. 发明申请

US20150303981A1 TRANSCEIVER FRONT-END 审中-公开
标题翻译：收发器前端
公开(公告)号：US20150303981A1
公开(公告)日：2015-10-22
申请号：US14440893
申请日：2013-11-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Henrik Sjoland , Stefan Andersson , Imad ud Din , Johan Wernehag
IPC分类号： H04B1/48
CPC分类号： H04B1/48 , H04B1/525 , H04B2001/485
摘要： A transceiver front-end for a communication device is connectable to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency. The transceiver front-end is also connectable to a transmitter adapted to produce the transmit signal, and to a receiver adapted to process the receive signal. The transceiver front-end comprises a transmit frequency suppression filter arrangement and a receive frequency suppression filter arrangement. The transmit frequency suppression filter arrangement is adapted to suppress transfer of a signal having the transmit frequency and to pass a signal having the receive frequency. The receive frequency suppression filter arrangement is adapted to suppress transfer of a signal having the receive frequency and to pass a signal having the transmit frequency. The transceiver front-end also comprises a transmit frequency cancellation arrangement and a receive frequency cancellation arrangement. The transmit frequency cancellation arrangement is adapted to produce a first cancellation signal for cancellation, at receiver nodes, of a suppressed signal having the transmit frequency, transferred by the transmit frequency suppression filter arrangement. The receive frequency cancellation arrangement is adapted to produce a second cancellation signal for cancellation, at signal transmission and reception arrangement nodes of a suppressed signal having the receive frequency, transferred by the receive frequency suppression filter arrangement. Corresponding transceiver, communication device and method are also disclosed.
摘要翻译：用于通信设备的收发器前端可连接到适于发送具有发射频率的发射信号并且接收具有接收频率的接收信号的信号发射和接收装置。收发器前端还可连接到适于产生发射信号的发射机，以及适于处理接收信号的接收机。收发器前端包括发射频率抑制滤波器装置和接收频率抑制滤波器装置。发射频率抑制滤波器装置适于抑制具有发射频率的信号的传送并且传递具有接收频率的信号。接收频率抑制滤波器装置适于抑制具有接收频率的信号的传送并且传递具有发射频率的信号。收发器前端还包括发射频率消除装置和接收频率消除装置。发射频率消除装置适于产生用于在接收机节点消除由发射频率抑制滤波器装置传送的具有发射频率的抑制信号的第一抵消信号。接收频率消除装置适于产生用于消除由接收频率抑制滤波器装置传送的具有接收频率的抑制信号的信号发射和接收装置节点处的第二抵消信号。还公开了相应的收发器，通信设备和方法。

8. 发明授权

US09900044B2 Transceiver arrangement and communication device 有权
公开(公告)号：US09900044B2
公开(公告)日：2018-02-20
申请号：US15113342
申请日：2014-01-21
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Henrik Sjoland
IPC分类号： H04B1/525 , H04L5/14 , H04L27/20 , H04L12/26
CPC分类号： H04B1/525 , H04L5/14 , H04L27/201 , H04L43/028
摘要： A transceiver arrangement is disclosed. The transceiver arrangement comprises a receiver arranged for frequency-division duplex communication with a communication network and a transmitter arranged for frequency-division duplex communication with the communication network. The transceiver arrangement also comprises a transmission port anda phase shifter arrangement which comprises a first 180° phase shifter and a second 180° phase shifter. The transceiver arrangement further comprises a filtering arrangement. The filtering arrangement comprises filters of a first type and filters of a second type. The filtering arrangement and the phase shifter arrangement are arranged to connect the receiver, transmitter and transmission port forming a first signal path between the transmission port and the transmitter by a first one of the filters of the first type and the first phase shifter in series, a second signal path between the transmission port and the transmitter by a second one of the filters of the first type and a first one of the filters of the second type in series, a third signal path between the transmission port and the receiver by a second one of the filters of the second type and the second phase shifter in series, and a fourth signal path between the transmission port and the receiver by a third one of the filters of the second type and a third one of the filters of the first type in series. The filters of the first type are arranged to pass signals at transmitter frequency and attenuate signals at receiver frequency, and the filters of the second type are arranged to attenuate signals at transmitter frequency and pass signals at receiver frequency. A communication device capable of frequency division duplex communication comprising such a transceiver arrangement is also disclosed.

9. 发明授权

US09356634B2 Down-conversion circuit 有权
标题翻译：下转换电路
公开(公告)号：US09356634B2
公开(公告)日：2016-05-31
申请号：US14376085
申请日：2013-01-23
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Imad ud Din , Stefan Andersson , Henrik Sjoland , Johan Wernehag
IPC分类号： H04B1/26 , H04B1/10 , H04B1/28 , H03D7/14
CPC分类号： H04B1/109 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0088 , H04B1/28
摘要： A down-conversion circuit for a receiver circuit is disclosed, the down-conversion circuit comprises a first passive switching mixer arranged to down-convert a received radio frequency, RF, signal with a first local oscillator, LO, signal (LO1) having a first duty cycle for generating a first down-converted signal at an output port of the first passive switching mixer. The down-conversion circuit further comprises a second passive switching mixer arranged to down-convert the received RF signal with a second LO signal (LO2) having the same LO frequency as the first LO signal (LO1) and a second duty cycle, different from the first duty cycle, for generating a second down-converted signal at an output port of the second passive switching mixer. In addition, the down-conversion circuit comprises a passive output combiner network operatively connected to the output ports of the first passive switching mixer and the second passive switching mixer and arranged to combine the first and the second down-converted signals such that harmonically down-converted signal content present in the first down-converted signal and harmonically down-converted signal content present in the second down-converted signal cancel in a combined output signal of the down-conversion circuit. The passive output combiner network is tunable to adjust magnitudes and phases of the first and the second down-converted signals. A related quadrature down-conversion circuit, a related receiver circuit, a related communication device, and a related calibration method are also disclosed.
摘要翻译：公开了一种用于接收机电路的下变频电路，该降频转换电路包括：第一无源开关混频器，被配置为使接收到的射频RF信号与具有第一本地振荡器的第一本地振荡器LO，信号（LO1）用于在第一无源开关混频器的输出端口处产生第一下变频信号的第一占空比。下变换电路还包括第二无源开关混频器，其被布置为利用具有与第一LO信号（LO1）相同的LO频率的第二LO信号（LO2）对第二无线电信号进行下变频，并且具有与第一LO 第一占空比，用于在第二无源开关混频器的输出端口产生第二下变频信号。此外，下变频电路包括可操作地连接到第一无源开关混频器和第二无源开关混频器的输出端口的无源输出组合器网络，并且被布置成组合第一和第二下变频信号，存在于第一下变频信号中的转换信号内容和存在于第二下变频信号中的谐波下变频信号内容在下变频电路的组合输出信号中抵消。无源输出组合器网络可调，以调整第一和第二下变频信号的幅度和相位。还公开了相关的正交下变频电路，相关的接收机电路，相关的通信设备和相关的校准方法。

10. 发明授权

US09344039B2 Down-conversion circuit with interference detection 有权
标题翻译：具有干扰检测功能的下变频电路
公开(公告)号：US09344039B2
公开(公告)日：2016-05-17
申请号：US14375788
申请日：2013-01-23
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Imad Ud Din , Stefan Andersson , Henrik Sjoland , Fredrik Tillman , Johan Wernehag
IPC分类号： H04B1/10 , H03D7/14 , H04B1/28 , H03G3/30 , H04B1/16
CPC分类号： H03D7/1466 , H03D7/1441 , H03D7/1458 , H03D2200/0088 , H03G3/3036 , H04B1/1027 , H04B1/109 , H04B1/16 , H04B1/28
摘要： A down-conversion circuit for a receiver circuit is disclosed. It comprises a first mixer arranged to down-convert an RF signal with a first LO signal (LO1), thereby generating a first down-converted signal. It further comprises a second mixer arranged to down-convert the RF signal with a second LO signal (LO2) having the same LO frequency as the first LO signal (LO1), but a different and a second duty cycle, thereby generating a second down-converted signal. The second mixer has an enabled and a disabled mode. The down-conversion circuit also comprises a third mixer arranged to down-convert the RF signal with the second LO signal (LO2), thereby generating a third down-converted signal. A passive output combiner network is used to combine the first and the second down-converted signals such that harmonically down-converted signal content present in the first down-converted signal and harmonically down-converted signal content present in the second down-converted signal cancel in a combined output signal of the down-conversion circuit. The down-conversion circuit further comprises a detection unit adapted to detect interference based on the first and third down-converted signals and to selectively set the second passive switching mixer in the enabled mode, for counteracting the interference, or in the disabled mode, for saving power compared with the enabled mode, based on the detection. A corresponding receiver circuit, a corresponding communication device, and a corresponding method are also disclosed.
摘要翻译：公开了一种用于接收机电路的下变频电路。它包括一个第一混频器，其被布置成利用第一LO信号（LO1）对RF信号进行下变频，由此产生第一下变频信号。它还包括第二混频器，其被布置为利用具有与第一LO信号（LO1）相同LO频率但具有不同和第二占空比的第二LO信号（LO2）对RF信号进行下变频，由此产生第二下降转换信号。第二个混音器具有启用和禁用模式。下变频电路还包括第三混频器，其被布置为利用第二LO信号（LO2）对RF信号进行下变频，由此产生第三下变频信号。无源输出组合器网络用于组合第一和第二下变频信号，使得存在于第一下变频信号中的谐波下变频信号内容和存在于第二下变频信号中的谐波下变频信号内容取消在下变频电路的组合输出信号中。下变换电路还包括检测单元，其适于基于第一和第三下变频信号来检测干扰，并且选择性地将第二无源开关混频器设置在使能模式中，以抵消干扰，或者在禁用模式下，基于检测功能，与启用模式相比节电。还公开了相应的接收机电路，相应的通信设备和相应的方法。

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