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Method and device for phase noise suppression

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

Active Publication Date: 2017-06-27
HONOR DEVICE CO LTD
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  • Summary
  • 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

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  • Method and device for phase noise suppression
  • Method and device for phase noise suppression

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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

Embodiments of the present invention relate to a method and device for phase noise suppression. Wherein, the method for phase noise suppression includes: generating a first compensation signal based on a local oscillator signal, where the first compensation signal is a base frequency signal before compensating the digital signal; providing the first compensation signal to a digital circuit, So that the digital circuit performs adaptive phase noise estimation on the first compensation signal and compensates the estimated phase noise to the digital signal. The embodiments of the present invention can process data and compensation signals through adaptive filters, and obtain phase noise compensation signals required by digital circuits, so as to perform corresponding compensation in digital circuits, thereby eliminating phase noise effects of communication systems.

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 Patents(China)
IPC IPC(8): H04B15/00H04L27/00
Inventor 侯剑辉
Owner HONOR DEVICE CO LTD
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