Methods for avoiding inter-modulation distortion and communications apparatuses utilizing the same

    公开(公告)号:US09998160B2

    公开(公告)日:2018-06-12

    申请号:US15465737

    申请日:2017-03-22

    Applicant: MEDIATEK INC.

    CPC classification number: H04B1/123 H04B15/06 H04L25/03 H04L27/152

    Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.

    COMMUNICATION CIRCUIT AND ASSOCIATED METHOD FOR CALIBRATING COMMUNICATION CIRCUIT
    4.
    发明申请
    COMMUNICATION CIRCUIT AND ASSOCIATED METHOD FOR CALIBRATING COMMUNICATION CIRCUIT 有权
    通信电路及相关联的校准通信电路的方法

    公开(公告)号:US20150055691A1

    公开(公告)日:2015-02-26

    申请号:US14330115

    申请日:2014-07-14

    Applicant: MEDIATEK Inc.

    Abstract: The present invention provides a method for calibrating a communication circuit. In an embodiment, the method may include: cooperating start of a calibration procedure, and, by the communication circuit, signaling a calibration signal between a test equipment and the communication circuit. The calibration signal may include a plurality of coexisting component signals respectively at a plurality of calibration frequencies. Associated communication circuit is also disclosed.

    Abstract translation: 本发明提供一种用于校准通信电路的方法。 在一个实施例中,该方法可以包括:协调启动校准过程,并且通过通信电路在测试设备和通信电路之间发信号通知校准信号。 校准信号可以分别在多个校准频率处包括多个共存分量信号。 还公开了相关联的通信电路。

    Communication circuit and associated method for calibrating communication circuit
    6.
    发明授权
    Communication circuit and associated method for calibrating communication circuit 有权
    通信电路及相关方法校准通信电路

    公开(公告)号:US09503302B2

    公开(公告)日:2016-11-22

    申请号:US14330115

    申请日:2014-07-14

    Applicant: MEDIATEK Inc.

    Abstract: The present invention provides a method for calibrating a communication circuit. In an embodiment, the method may include: cooperating start of a calibration procedure, and, by the communication circuit, signaling a calibration signal between a test equipment and the communication circuit. The calibration signal may include a plurality of coexisting component signals respectively at a plurality of calibration frequencies. Associated communication circuit is also disclosed.

    Abstract translation: 本发明提供一种用于校准通信电路的方法。 在一个实施例中,该方法可以包括:协调启动校准过程,并且通过通信电路在测试设备和通信电路之间发信号通知校准信号。 校准信号可以分别在多个校准频率处包括多个共存分量信号。 还公开了相关联的通信电路。

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