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A method and device for determining calibration information

A technology for calibrating information and length information, applied in channel estimation, digital transmission system, baseband system components, etc., can solve the problem of many times of phase fitting, low efficiency of effective phase calculation of sliding window, and increased computational complexity and other problems, to achieve the effect of fewer times of phase linear fitting, reducing complexity, and reducing phase fitting errors

Active Publication Date: 2021-12-28
DATANG MOBILE COMM EQUIP CO LTD
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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 addition, when the signal bandwidth is large, the number of sliding windows obtained is relatively small. Many times, the number of phase fittings needs to be more, which increases the complexity of calculation

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  • A method and device for determining calibration information
  • A method and device for determining calibration information
  • A 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

Embodiments of the present invention provide a method and apparatus for determining calibration information, wherein the method includes: a receiving end receives a measurement signal, performs channel estimation on the measurement signal, and determines a frequency domain signal; bandwidth and reference frequency interval, determine the length range information of the target window; according to the length range information and window efficiency information conditions of the target window, determine the length information of the guard band and the length information of the effective band in the target window; The target window performs sliding-window phase linear fitting on the frequency-domain signal to obtain phase fitting information corresponding to each sliding window; according to the phase fitting information, the length information of the guard band and the length information of the effective band, the calibration is determined The calibration information is used to calibrate the phase of the signal to be calibrated; the method can reduce the number of sliding windows required, thereby reducing the number of phase linear fittings for each sliding window, thereby reducing the amount of time calculated in the phase calibration process. the complexity.

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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Patent Type & Authority Patents(China)
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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