Method and device for determining calibration information

A technology for calibrating information and length information, applied in the field of communication, can solve the problems of increasing the complexity of the calculation, many times of phase fitting, and low efficiency of the effective phase calculation of the sliding window.

Active Publication Date: 2020-12-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

However, for each non-edge sliding window, since only the phase of the middle 1/3 of the sliding window bandwidth is calculated, the effective phase calculation efficiency of the sliding window is low. In add

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  • Method and device for determining calibration information
  • Method and device for determining calibration information
  • Method and device for determining calibration information

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] One of the core ideas of the embodiments of the present invention is that it is possible to design a target window whose length of the effective band is greater than the length of the guard band, and then use the target window to perform sliding-window phase linear fitting on the frequency-domain signal of the measurement signal to obtain each sliding window Corresponding phase fitting information; then according to the length information of the guard band and the length information of the effective band in the target window, the phase fitting information corresponding to each sliding window is spliced ​​to obtain the calibration information of the signal to be calibrated; wherein, each Each sliding window can correspond to ...

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Abstract

An embodiment of the invention provides a method and device for determining calibration information. The method comprises the steps: receiving a measurement signal via a receiving end, carrying out the channel estimation of the measurement signal, and determining a frequency domain signal; determining length range information of a target window according to the bandwidth of the frequency domain signal and a reference frequency interval; determining length information of a protection band and length information of an effective band in the target window according to the length range informationand the window efficiency information condition of the target window; carrying out sliding window type phase linear fitting on the frequency domain signal by adopting the target window to obtain phasefitting information corresponding to each sliding window; according to the phase fitting information, the length information of the protection band and the length information of the effective band, determiningcalibration information, wherein the calibration information is used for calibrating the phase of a signal to be calibrated. According to the method, the number of required sliding windows can be reduced, so that the phase linear fitting frequency of each sliding window is reduced, and the calculation complexity in the phase calibration process is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for determining calibration information and a method and device for determining calibration information. Background technique [0002] With the rapid development of mobile communication systems (such as 4G (the 4th Generation mobile communication technology, fourth-generation mobile communication technology) system or 5G (the 5th Generation mobile communication technology, fifth-generation mobile communication technology) system), user terminals can access The mobile communication system carries out various mobile services, such as surfing the Internet, video on demand, sending and receiving emails, downloading and so on. [0003] In the communication process, the signal is often not a single frequency, but within a certain frequency range. During the transmission of a wide-band signal, the phase delay of signals of different frequencies is not constant, s...

Claims

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Application Information

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IPC IPC(8): H04L25/02
CPCH04L25/0202H04L25/0224
Inventor 章勇王希石璟
Owner DATANG MOBILE COMM EQUIP CO LTD
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