Phase synchronization device and method

A phase synchronization and trigger technology, applied in the field of communication, can solve the problems of gain reduction, bit error high-order modulation and demodulation, affecting baseband data, etc., to reduce purchases, avoid system performance degradation, and reduce costs.

Pending Publication Date: 2021-01-08
北京三中科技有限公司
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Problems solved by technology

[0003] In a time division duplex system, in order to reduce power consumption, it is necessary to turn off the phase-locked loop when it is not working, and turn it on when it is working, so that the frequency can be locked and it is stable after each switch, but the phase cannot be guaranteed every time. The same, there is a random difference of 180°. The phase difference between the two signals will cause beam pointing deviation and gain reduction in phased array or multi-antenna systems, which will affect the out-of-synchronization of baseband data, resulting in bit errors and even high-order modulation and demodulation failures. , which seriously affects the performance of the system

Method used

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Embodiment Construction

[0021] The specific implementation manner of the present application will be described below in conjunction with the accompanying drawings.

[0022] In this article, "upper", "lower", "front", "rear", "left", "right", etc. are only used to indicate the relative positional relationship between related parts, rather than to limit the absolute position of these related parts .

[0023] In this article, "first", "second", etc. are only used to distinguish each other, not to indicate the degree of importance and order, or the prerequisite for mutual existence.

[0024] Herein, "equal", "identical" and the like are not strictly restricted in the sense of mathematics and / or geometry, but also include errors understandable by those skilled in the art and allowed in manufacture or use.

[0025] Unless otherwise stated, a numerical range herein includes not only the entire range within its two endpoints, but also several subranges subsumed therein.

[0026] see figure 1 As shown in a...

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Abstract

The invention discloses a phase synchronization device and method. The phase synchronization device comprises a first trigger and a second trigger, wherein a receiving end of the first trigger is connected with a first signal source, a clock signal end of the first trigger is connected with a second signal source, a receiving end of the second trigger is connected with the first signal source, anda clock signal end of the second trigger is connected with the second signal source. Therefore, on one hand, the situation that the system performance is reduced due to different phases of two signals is avoided, and the working performance of the system is guaranteed; on the other hand, a crystal oscillator, a filter and other components do not need to be arranged to additionally generate squarewaves to serve as clock control signals, purchase of the components is reduced, and the signal processing cost is reduced.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a phase synchronization device and method, a cellular network antenna array transmitter, a cellular network antenna array receiver, and wireless multi-antenna array electronic equipment. Background technique [0002] Radio communication equipment needs to generate a stable operating frequency for proper operation. Generally, it is generated by using a crystal oscillator, because the crystal oscillator only allows the signal with the same resonant frequency to pass through, so the crystal oscillator can generate a very precise frequency, and the frequency depends on the size and characteristics of the crystal. The signal generated by the device is used as the clock signal. [0003] In a time division duplex system, in order to reduce power consumption, it is necessary to turn off the phase-locked loop when it is not working, and turn it on when it is working,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/10
CPCH03L7/101
Inventor 苏建明
Owner 北京三中科技有限公司
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