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Signal processing method, frequency conversion system, storage medium and base station

A signal processing and frequency conversion system technology, applied in the field of signal processing, can solve problems such as increasing system difficulty and cost, and achieve the effect of reducing design difficulty, ensuring normal communication functions, and reducing hardware costs

Inactive Publication Date: 2019-05-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the current up-conversion and down-conversion systems each use a filter and a frequency shifter, which greatly increases the difficulty and cost of the hardware design of the system

Method used

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  • Signal processing method, frequency conversion system, storage medium and base station
  • Signal processing method, frequency conversion system, storage medium and base station
  • Signal processing method, frequency conversion system, storage medium and base station

Examples

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Embodiment Construction

[0046] In order to better understand the above technical solution, the technical solution of the present invention will be described in detail below through the accompanying drawings and specific examples. It should be understood that the embodiments of the present invention and the specific features in the examples are detailed descriptions of the technical solution of the present invention, and It is not a limitation to the technical solutions of the present invention, and the embodiments of the present invention and the technical features in the embodiments can be combined with each other under the condition of no conflict.

[0047] Considering that Time Division Duplexing (TDD, Time Division Duplexing) technology uses time to distinguish uplink and downlink data, resources in one direction are discontinuous in time, and a guard interval is required to avoid transmission and reception interference between uplink and downlink directions. . The general TDD frame format can be...

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Abstract

The embodiment of the invention discloses a signal processing method, which comprises the following steps that: the attribute of a control signal is obtained, and the attribute of the control signal is used for representing the category of an input signal; the working state of a filter and / or a frequency shifter is determined according to the attribute of the control signal, the filter and the frequency shifter at least comprising two working states; and up-conversion or down-conversion processing is performed on the input signal according to the working state of the filter and / or the frequency shifter. The invention also discloses a frequency conversion system, a storage medium and a base station.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a signal processing method, a frequency conversion system, a storage medium and a base station. Background technique [0002] With the rapid development of communication technology, higher and higher requirements are placed on the processing capability of the base station. In a traditional base station system, an (IF) digital frequency conversion system can be used to convert an IF signal into an RF signal (up-conversion processing) or convert an RF signal into an IF signal (down-conversion processing). Such as figure 1 As shown, it is a schematic diagram of the structure of the up-conversion system and the down-conversion system. In the up-conversion system, the input signal of the frequency conversion system is interpolated and filtered by the interpolation filter, and then combined with the carrier by the frequency shifter to obtain the radio frequency signal. In the down-co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00
Inventor 张晓蕾
Owner ZTE CORP
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