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Digital synchronization receiving device and signal processing method

A receiving device and digital receiving technology, applied in the field of communication systems

Active Publication Date: 2012-07-11
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since these cancellers are simulated based on the data transmitted by a transmitter, which may belong to a different clock domain than the receiver, the simulated echo or crosstalk may also be different from that received by the receiver. signals belonging to different clock domains

Method used

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  • Digital synchronization receiving device and signal processing method
  • Digital synchronization receiving device and signal processing method
  • Digital synchronization receiving device and signal processing method

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Embodiment Construction

[0042] figure 1 According to an embodiment of the present invention, it shows a schematic diagram of a multi-channel full-duplex communication system, wherein the communication system has channel A and channel B (for simplicity, two channels are taken as an example), and each channel The two ends belong to the first clock domain and the second clock domain, and respectively have a transmitter and a receiver. The digital synchronization receiving device 20 with interference cancellation function of the present invention is located in the receiver 1 of the channel B, and the receiver 1 also includes an analog front end circuit (analog front end) 10, which can receive the signal transmitted by the transmitter 2 via the channel B data. In addition, the analog front-end circuit 10 will also receive various interferences, including the echo generated by the data transmitted by the transmitter 3 belonging to the channel B, and the near-end crosstalk (near-end crosstalk) generated by...

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Abstract

The invention discloses a digital synchronization receiving device and a method for processing the signal of the device. The device can receive the data transmitted by a conveyor. The conveyor and the digital synchronization receiving device respectively belong to the first clock domain and the second clock domain. The device utilizes a digital way to carry out the synchronization so as to prevent the problem of analog solving proposal in the prior art and solve the synchronization problem of interference elimination.

Description

technical field [0001] The invention relates to a communication system, in particular to a receiver architecture of the communication system. Background technique [0002] In a communication system, the clocks used by the transmitter and the receiver often have different speeds, that is, the transmitter and the receiver belong to different clock domains. Therefore, the communication system needs a synchronization mechanism to adjust the clocks of the transmitter and the receiver to be consistent, so that data can be transmitted and received correctly. [0003] In the prior art, a loop timing method is used for synchronization. In the method of loop timing, the receiver will estimate the timing error (timing error) on the signal caused by the different clock speeds of the receiver and the transmitter based on the received signal, and then feed back the estimated timing error to the receiver The clock source (clock source, such as an oscillator) directly adjusts the speed of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L7/027H04L1/00H04L1/24H04L1/20
Inventor 黄峰钦施至永
Owner REALTEK SEMICON CORP