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    • 3. 发明申请
    • RECEIVER FOR NON CONTIGUOUS CARRIER AGGREGATION SCHEMES
    • 接收器用于非连续载波聚合​​方案
    • WO2013072864A1
    • 2013-05-23
    • PCT/IB2012/056440
    • 2012-11-15
    • RENESAS MOBILE CORPORATIONKAUKOVUORI, JouniPARSSINEN, AarnoIMMONEN, Antti
    • KAUKOVUORI, JouniPARSSINEN, AarnoIMMONEN, Antti
    • H04B1/00
    • H04B1/16H04B1/005H04B17/309
    • Data is received that has been transmitted via a combination of radio frequency signals using carrier aggregation, each radio frequency signal occupying a respective radio frequency band, the bands being arranged in two groups separated in frequency by a first frequency region, the first of the two groups occupying a wider frequency region than the second group. The radio frequency signals are down converted using quadrature mixing (906a, 906b, 906c, 906d) to give in phase and quadrature components, and the in phase and quadrature components are filtered using a first bandpass filter bandwidth (902a, 902b) to give first bandpass filtered in phase and quadrature components and filtered using a second bandpass filter bandwidth (904a, 904b), different from the first bandpass filter bandwidth, to give second bandpass filtered in phase and quadrature components. A reconfigurable receiver is configurable to a first mode to receive the combination of radio frequency signals, and is also configurable to at least a second mode. At least one first filter is configured, in the first mode, to use a first bandpass filter bandwidth (902a, 902b) and, in the second mode, to use a low pass filter bandwidth (900a, 900b). At least one second filter is configured, in the first mode, to use a second bandpass filter bandwidth (904a, 904b), different from the first bandpass filter bandwidth (902a, 902b).
    • 接收已经通过使用载波聚合的射频信号的组合发送的数据,每个射频信号占据相应的无线电频带,频带被布置成两组,频率分为第一频率区域,第一个频率区域 占据比第二组更宽的频率区域的组。 使用正交混合(906a,906b,906c,906d)对射频信号进行下变频以产生相位和正交分量,并且使用第一带通滤波器带宽(902a,902b)对同相和正交分量进行滤波,以给出第一 带通滤波相位和正交分量,并使用与第一带通滤波器带宽不同的第二带通滤波器带宽(904a,904b)进行滤波,以给出相位和正交分量中的第二带通滤波。 可重构接收机可配置为第一模式以接收射频信号的组合,并且还可配置为至少第二模式。 至少一个第一滤波器被配置为在第一模式中使用第一带通滤波器带宽(902a,902b),并且在第二模式中,使用低通滤波器带宽(900a,900b)。 在第一模式中,至少一个第二滤波器被配置为使用与第一带通滤波器带宽(902a,902b)不同的第二带通滤波器带宽(904a,904b)。
    • 8. 发明申请
    • AMPLIFIER WITH ON-CHIP FILTER
    • 带片上滤波器的放大器
    • WO2010076320A1
    • 2010-07-08
    • PCT/EP2009/067988
    • 2009-12-29
    • ST ERICSSON S.A.JUSSILA, JarkkoSIVONEN, PeteVILHONEN, SamiRIEKKI, JonneKAUKOVUORI, Jouni
    • JUSSILA, JarkkoSIVONEN, PeteVILHONEN, SamiRIEKKI, JonneKAUKOVUORI, Jouni
    • H03H7/01
    • H03H19/008
    • An integrated circuit (52) for a radio receiver comprising a radio-frequency amplifier (55) and a radio-frequency filter (54) is described. The amplifier (55) receives radio-frequency signals from an antenna (53), the filter (54) is connected to the amplifier output, and the output of the filter (54) is provided to a processing stage (56-59a; 56-59b) of the receiver. The amplifier (55) comprises an amplifying stage (73) controlled by a radio-frequency input signal and a signal (74) fed back from the filter (54). The amplifier (55) input impedance is substantially matched to the antenna (53) impedance at a frequency band of interest. The signal (73) fed back from the filter (54) providing attenuation of signals outside the frequency band of interest at the amplifier (55) input. The filter (54) comprises one or more filter components (153a). A filter component comprises a first input (154a) and a second input (154b) for receiving the amplifier (55) output, a first switch (152a) arranged to selectively connect the first input (154a) to a first impedance (151a), a second switch (152b) arranged to selectively connect the first input (154a) to a second impedance (151b), a third switch (152c) arranged to selectively connect the second input (154b) to the first impedance (151a), and a fourth switch (152d) arranged to selectively connect the second input (154b) to the second impedance (151b). The first and fourth switches (152a, 152d) are controlled by a first oscillator signal (155a) and the second and third switches (152b, 152c) are controlled by a second oscillator (155b) signal that is 180° out of phase with the first oscillator signal (155a).
    • 描述了一种用于包括射频放大器(55)和射频滤波器(54)的无线电接收机的集成电路(52)。 放大器(55)从天线(53)接收射频信号,滤波器(54)连接到放大器输出端,滤波器(54)的输出端被提供给处理级(56-59a; 56 -59b)。 放大器(55)包括由射频输入信号控制的放大级(73)和从滤波器(54)反馈的信号(74)。 放大器(55)输入阻抗基本上与感兴趣的频带处的天线(53)阻抗匹配。 从滤波器(54)反馈的信号(73)在放大器(55)输入端处提供在感兴趣频带之外的信号的衰减。 过滤器(54)包括一个或多个过滤器部件(153a)。 滤波器组件包括用于接收放大器(55)输出的第一输入(154a)和第二输入(154b),布置成选择性地将第一输入(154a)连接到第一阻抗(151a)的第一开关(152a) 布置成将第一输入(154a)选择性地连接到第二阻抗(151b)的第二开关(152b),被布置成选择性地将第二输入(154b)连接到第一阻抗(151a)的第三开关(152c) 第四开关(152d)被布置成选择性地将第二输入(154b)连接到第二阻抗(151b)。 第一和第四开关(152a,152d)由第一振荡器信号(155a)控制,第二和第三开关(152b,152c)由第二振荡器(155b)信号控制,第二振荡器(155b)信号与 第一振荡器信号(155a)。
    • 10. 发明公开
    • APPARATUS AND METHODS FOR INTERFERENCE MITIGATION
    • 用于干扰减轻的装置和方法
    • EP2883405A2
    • 2015-06-17
    • EP13774826.5
    • 2013-08-09
    • Renesas Mobile Corporation
    • KAUKOVUORI, JouniIMMONEN, AnttiCALLENDER, Christopher
    • H04W72/08H04W72/04H04L5/00
    • H04W72/082H04L5/001H04L5/0062H04L5/0094H04W72/0413H04W72/0453
    • Measures for mitigating interference in wireless communications of a user equipment comprising a plurality of radio transceivers. The user equipment determines that wireless communication using a given combination of uplink and/or downlink carrier bands associated with the plurality of radio transceivers causes an interference scenario. In response to the determination, the user equipment transmits, into a radio network, an indication of at least one preferred uplink carrier band for at least one of the plurality of radio transceivers. The indication transmitted by the user equipment is received at a network node in the radio network which may choose to carryout radio resource control in the radio network at least on the basis of the received indication.
    • 用于减轻包括多个无线电收发器的用户设备的无线通信中的干扰的措施。 用户设备确定使用与多个无线电收发器相关联的上行链路和/或下行链路载波频带的给定组合的无线通信引起干扰情形。 响应于该确定,用户设备向无线电网络传送针对多个无线电收发器中的至少一个的至少一个优选上行链路载波频带的指示。 由用户设备发送的指示在无线电网络中的网络节点处被接收,该无线电网络中的网络节点可以至少基于接收到的指示选择在无线电网络中执行无线电资源控制。