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receiver circuit

A receiver and circuit technology, applied in receiver monitoring, electrical components, transmission systems, etc., can solve problems such as in-phase/quadrature phase mismatch in receiver circuits, reduce the degree of in-phase/quadrature phase mismatch, improve The effect of improving the signal-to-noise ratio and improving the overall data transmission volume

Active Publication Date: 2021-07-27
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, how to effectively improve the in-phase / quadrature phase mismatch in the receiver circuit is a problem to be solved

Method used

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Embodiment Construction

[0012] Embodiments of the present invention will be described below in conjunction with related figures. In the drawings, the same reference numerals represent the same or similar elements or method flows.

[0013] figure 1 It is a simplified functional block diagram of the transceiver 100 according to an embodiment of the present invention. The transceiver 100 includes a receiver circuit 110 and a transmitter circuit 120 . During normal operation, the receiver circuit 110 can process the received signal Rx from the receiving antenna 102 , and the transmitting circuit 120 can generate the transmitting signal Tx to be transmitted through the transmitting antenna 104 .

[0014] Before normal operation, the receiver circuit 110 performs an in-phase / quadrature phase mismatch correction procedure to eliminate or alleviate the in-phase / quadrature phase mismatch in the receiver circuit 110 .

[0015] Such as figure 1 As shown, the receiver circuit 110 in this embodiment includes ...

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Abstract

The present invention proposes a receiver circuit in a transceiver, which includes: a correction circuit configured to perform an in-phase / quadrature phase mismatch correction operation based on an in-phase detection signal and a quadrature-phase detection signal to generate an or A plurality of compensation parameters; a parameter storage circuit; an interference detection circuit, configured to generate an estimated signal-to-interference ratio based on the in-phase detection signal and the quadrature-phase detection signal; and a receiving end control circuit, configured to generate an estimated signal-to-interference ratio based on the signal The estimated value of the signal-to-interference ratio is used to determine whether to discard the one or more compensation parameters, wherein, only when the estimated value of the signal-to-interference ratio exceeds a predetermined critical value, the receiving end control circuit will use the one or more compensation parameters The parameters are stored in the parameter storage circuit.

Description

technical field [0001] The present invention relates to a transceiver, especially a receiver circuit that can decide whether to discard the in-phase / quadrature phase mismatch compensation parameters according to the signal-to-interference ratio. Background technique [0002] In receiver circuits of many wireless communication devices, there is often a gain mismatch and / Or phase mismatch (phase mismatch), which is the so-called in-phase / quadrature phase mismatch (I / Q mismatch). [0003] The in-phase / quadrature phase mismatch will cause mirror frequency interference, which will lead to a decrease in the signal-to-noise ratio (SNR) of the receiver circuit, thereby reducing the overall system data throughput (throughput) . Contents of the invention [0004] In view of this, how to effectively improve the in-phase / quadrature phase mismatch in the receiver circuit is a problem to be solved. [0005] This specification provides an embodiment of a receiver circuit in a transc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10H04B1/12H04B1/16H04B17/21
CPCH04B1/1027H04B1/12H04B1/16H04B17/21
Inventor 张元硕高子铭
Owner REALTEK SEMICON CORP