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Broadband fluctuation calibration method, device and repeater system

A calibration method and broadband technology, applied in the field of repeaters, can solve the problems of low working bandwidth, poor signal transmission and coverage effect, etc.

Active Publication Date: 2022-03-04
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to at least solve one of the above-mentioned technical defects, especially the technical defect of poor signal transmission and coverage effect in the repeater using radio frequency front-end and zero-intermediate-frequency (ZIF) integrated transceiver chips in the prior art , further, provide a broadband fluctuation calibration method and system for a repeater system, aiming to use a zero-IF integrated transceiver chip with low operating bandwidth to realize the design of a repeater system operating in a wide operating frequency band, so that The system working channel can achieve excellent gain / power flat performance when the frequency point and bandwidth are set arbitrarily within the system working frequency band

Method used

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  • Broadband fluctuation calibration method, device and repeater system
  • Broadband fluctuation calibration method, device and repeater system
  • Broadband fluctuation calibration method, device and repeater system

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Embodiment Construction

[0044] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present application, and are not construed as limiting the present application.

[0045]Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or combinations thereof.

[0046] Th...

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Abstract

The present application relates to the field of repeater technology, in particular to a calibration method and device for broadband fluctuations, and a repeater system, including: obtaining the current working frequency band bandwidth of the system and the working bandwidth supported by the zero-IF chip, and determining the working bandwidth according to the working bandwidth The current working frequency bandwidth of the system; if the working frequency bandwidth is greater than the working bandwidth supported by the zero-IF chip, then determine the current working channel of the system and the working local oscillator frequency of the zero-IF chip; according to the The working local oscillator frequency point of the zero-IF chip and the current working channel of the system determine the fluctuation calibration data and gain compensation value of the system; The broadband fluctuation calibration function and system design of the wireless repeater enable the working channel to achieve excellent gain / power flat performance when the frequency point and bandwidth are set arbitrarily within the frequency band.

Description

technical field [0001] The present application relates to the technical field of repeaters, in particular to a broadband fluctuation calibration method, device and repeater system. Background technique [0002] A repeater is a mobile communication device that amplifies and transparently transmits signals in the mobile communication network to increase the coverage area. The current wireless repeater mainly adopts RF front-end and zero intermediate frequency (ZIF) integrated transceiver chips. Compared with the RF front-end and discrete AD / DA architecture, it has significant advantages of low cost, small chip layout area, and low power consumption. . [0003] However, since the center frequency point of the working bandwidth of the zero-IF architecture is the local oscillator frequency point, when a transmit local oscillator leak (transmit LOL) occurs, the leaked frequency point is the same as the local oscillator frequency point received / transmitted by the zero-IF architect...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/40H04B7/155
CPCH04B17/40H04B7/155
Inventor 梁智通付俊涛肖静娴
Owner COMBA TELECOM SYST CHINA LTD
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