Timing synchronization device based on symbol rate adaptive-interpolation and synchronization method thereof

Abstract

The invention provides a timing synchronization device based on a symbol rate adaptive-interpolation and a synchronization method thereof, belonging to the wireless communication technical field. The device comprises a sampler, an adaptive-interpolation filter, a timing error detector, a loop filter, a controller, a multi-phase clock generator and a multiplexer, wherein, the sampler is connected with the adaptive-interpolation filter; the adaptive-interpolation filter is connected with the timing error detector; the timing error detector is connected with the loop filter; the loop filter is connected with the controller; the controller is connected with the adaptive-interpolation filter and the multiplexer; the multi-phase clock generator is connected with the multiplexer; and the multiplexer is connected with the sampler. The invention greatly lowers sampling frequency so as to reduce power consumption, obtains the result close to an ideal sampling value, reduces the number of multiphase clocks and lowers complexity.

Description

technical field [0001] The present invention relates to a device and method in the technical field of wireless communication, in particular to a timing synchronization device and a synchronization method based on symbol rate adaptive interpolation. Background technique [0002] With the development of science and technology and the advent of the era of information globalization, modern communication technology is developing in the direction of digitalization, high speed, and low power consumption. With the needs of multimedia applications, traditional wireless communication technologies such as Bluetooth, wireless local area network (WLAN) and ultra-wideband (UWB) can no longer meet the needs of users for high-speed wireless data transmission rates, and they cannot provide Gigabit Ethernet, high-definition multimedia Interface (HDMI) comparable data transfer rate. Therefore, the high-speed wireless communication system that can realize the transmission rate of Gigabit / s or ...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this timing synchronization method is that its performance is highly dependent on the number of clocks. When the number of clock signals is small, the residual clock error will greatly reduce the performance of timing recovery. If there are too many clock signals , will make the circuit complex too high

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