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Phase noise restraining method and phase noise restraining device

A technology of phase noise and multiplication, applied in the field of communication, to achieve the effect of eliminating phase noise

Active Publication Date: 2014-12-31
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention proposes a method and device for phase noise suppression, aiming to solve the problem of how to effectively reduce cost and phase noise and ensure system performance

Method used

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  • Phase noise restraining method and phase noise restraining device
  • Phase noise restraining method and phase noise restraining device
  • Phase noise restraining method and phase noise restraining device

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0047] As mentioned above, in the prior art, it is difficult to simultaneously reduce system cost and system phase noise. Therefore, the present invention will consider the functions of analog circuits and digital circuits (for example, modems) at the same time, and effectively correct the phase noise generated in the analog circuits by adding new circuit modules and signal processing algorithms inside the digital circuits.

[0048] The following will comb...

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Abstract

An embodiment of the invention relates to a phase noise restraining method and a phase noise restraining device. The phase noise restraining method comprises the following steps of generating a first compensating signal which is a base frequency signal before a digital single is compensated on the basis of a local oscillator signal; and providing the first compensating signal to a digital circuit so that the digital circuit performs adaptive phase noise estimation on the first compensating signal and estimated phase noise is compensated to the digital signal. By the embodiment, data and compensating signals can be processed through an adaptive filter, phase noise compensating signals required for the digital circuit are acquired, so that corresponding compensation is performed in the digital circuit, and phase noise influences on a communication system are eliminated.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for phase noise suppression. Background technique [0002] With the development of various communication systems, spectrum resources are becoming more and more limited, resulting in the development of radio frequency spectrum to higher frequencies. [0003] When the frequency band is increased to the microwave frequency band, or even the millimeter wave frequency band, the phase noise of the transmission and reception of the communication system will be greatly degraded. In order to ensure that the cost of the communication system remains unchanged or even further reduced, cheaper chips or chips with higher integration are often considered when designing related communication systems. However, adopting a cheaper chip or a chip with a higher integration level often means that the phase noise performance of the system is further deteriorated. It can be seen that the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B15/00H04L27/00
Inventor 侯剑辉
Owner HONOR DEVICE CO LTD
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