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Transceiver and compensating method

一种补偿方法、传收器的技术，应用在传输系统、发射机/接收机中的整形网络、电气元件等方向，能够解决装置失衡等问题

Inactive Publication Date: 2012-10-17
MEDIATEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the system environment (such as temperature) of the wireless communication device during normal operation will change, resulting in a change in the internal IQ imbalance of the device

Method used

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  • Transceiver and compensating method

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Embodiment Construction

[0026] Certain terms are used throughout the specification and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open-ended term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that the first device is coupled to the second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0027] figure 1 It is a functional block d...

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Abstract

The invention provides a transceiver and a compensating method. The transceiver can compensate the IQ unbalance. The transceiver includes a transceiver circuit which carries out the upconversion of a dynamic modulation signal to generate a first RF signal, a return circuit which carries out the downconversion of the first RF signal, digitalizes the downconverted first RF signal, and determines a first IQ compensating parameter according to a first statistical value of the digitalized and downconverted first RF signal. The transceiver compensates a first IQ unbalance in the transceiver circuit according to the first IQ compensating parameter and then generates an IQ-compensated modulation signal.

Description

technical field [0001] The present invention relates to an IQ imbalance (IQ mismatch) compensation program, in particular to a transceiver and method capable of dynamically compensating for IQ imbalance. Background technique [0002] In a wireless communication system, wireless communication devices are usually used to provide communication services, such as voice, multimedia, data, broadcast, and message services. A conventional wireless communication device, such as a mobile phone, usually has a digital baseband circuit block that can provide a data stream of a complex number digital baseband data to the transmitter, Transmitting fundamental frequency data is performed by the transmitter with an orthogonal transmitter signal consisting of real and imaginary components or in-phase (I) and quadrature (Q) Quantities are indicated. In the transmitter, the real component of the transmitter signal along the real component circuit path and the imaginary component along the imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/12H04L25/03
CPCH04B1/40H04B1/0475
Inventor 彭俊贤
Owner MEDIATEK INC
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