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A distributed base station system and its data processing method

A distributed base station and system data technology, applied in the field of distributed base station system and its data processing, can solve the problems of high computational complexity of the base station, nonlinear distortion of the radio frequency unit, etc., and achieve the goal of reducing the computational complexity of the base station and reducing hardware consumption Effect

Inactive Publication Date: 2018-08-14
ZTE CORP
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Problems solved by technology

However, DAS has the following disadvantages: nonlinear distortion of each radio frequency unit and high computational complexity of the base station

Method used

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  • A distributed base station system and its data processing method
  • A distributed base station system and its data processing method
  • A distributed base station system and its data processing method

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Embodiment Construction

[0053] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0054] figure 2 It is a flowchart of a data processing method for a distributed base station system provided in Embodiment 1 of the present invention, as shown in figure 2 As shown, the method includes:

[0055] Step S201, the digital signal processing module of the base station sends a forward signal to the distributed nodes of the base station.

[0056] When the base station sends data to the user terminal, the digital signal processing module of the base station performs baseband processing and peak clipping processing on the forward signal, and sends the processed forward signal to the distributed nodes of the base station under the control of the ba...

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Abstract

The invention discloses a distributed base station and a data processing method thereof, and relates to the technical field of wireless communication. The data processing method includes that: a forward signal is transmitted to a distributed node of the base station by a digital signal processing module of the base station; the forward signal is converted into a radio frequency signal by the distributed node; the radio frequency signal is sampled and processed by a feedback device of the base station to obtain a feedback signal, and the feedback signal is transmitted to a nonlinear distortion corrector by the feedback device of the base station; correction is carried out for the forward signal by the nonlinear distortion corrector according to the feedback signal to obtain a corrected forward signal, and the corrected forward signal is transmitted to the distributed node; and the corrected forward signal is converted into a radio frequency signal by the distributed node, and then sent to a user terminal. With the distributed base station and the data processing method thereof, problems of nonlinear distortion of the radio frequency units of a DAS of the base station and high computational complexity of the base station are solved. Beneficial effects of the distributed base station and the data processing method thereof are that influence of a nonlinear element to a distributed antenna system is decreased, and computational complexity of the base station is reduced.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a distributed base station system and a data processing method thereof. Background technique [0002] In the new generation of wireless communication technology, OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) technology and same-frequency networking are often used, which will lead to degradation of cell edge user performance. At the same time, OFDM will also lead to an excessively high power peak-to-average ratio, making the signal amplitude enter the saturation region or even the cut-off region of the power amplifier. After the signal passes through the power amplifier, the accuracy of the radio frequency signal will be affected due to the non-linearity of the power amplifier in these two working areas. MIMO (Multiple Input Multiple Output, multi-antenna technology) can resist channel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/13H04B17/21H04W88/08
Inventor 李子荣朱登魁肖华华宁迪浩鲁照华
Owner ZTE CORP
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