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A method and device for processing signal sample point data

A technology for sampling data and processing signals, applied in digital transmission systems, error prevention, electrical components, etc.

Active Publication Date: 2019-10-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Block floating-point encoding can avoid all data being represented by a fixed number of bits, which is very suitable for encoding of LTE system IQ frequency domain data, but there is no joint time domain and frequency domain for LTE wireless base station system CPIR interface data in the prior art Feature Compression Scheme

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  • A method and device for processing signal sample point data
  • A method and device for processing signal sample point data
  • A method and device for processing signal sample point data

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Embodiment Construction

[0059] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0060] figure 2 The flowchart of the method for processing IQ data at the sending end of the embodiment of the present invention, such as figure 2 shown, including the following steps:

[0061] S11. Convert the time-domain IQ data to be sent into frequency-domain IQ data;

[0062] S12. Encode the frequency-domain IQ data, and then send it.

[0063] image 3 The flowchart of the method for processing IQ data at the receiving end of the embodiment of the present invention, as image 3 shown, including the following steps:

[0064] S21. Decode the received frequency-doma...

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Abstract

The present invention provides a method and device for processing signal sample point data (IQ data). The method includes: converting time domain signal sample point data to be transmitted into frequency domain signal sample point data, and processing the frequency domain signal sample point data The data is encoded and then sent. The present invention utilizes the frequency domain characteristics of the LTE system IQ data, first converts the time domain IQ data to the frequency domain IQ data at the sending end, removes redundant information, and then performs encoding to reduce the number of encoding points, so as to realize the conversion of the LTE system CPIR interface data More effective compression, to meet the current transmission access network transmission bandwidth requirements, can realize fast, controllable mode of efficient compression and decompression of LTE wireless base station system CPIR interface data.

Description

technical field [0001] The present invention relates to the field of wireless communication, especially the signal sample point data (referred to as IQ data) of the common public radio frequency interface (CPRI) of the LTE base station system. Imaginary part data of point data) processing method and device. Background technique [0002] The LTE (Long Term Evolution) base station equipment is a distributed base station, which consists of an evolved baseband processing unit (Evolved Building Base band Unit, referred to as eBBU) and an evolved radio remote unit (Evolved Radio Remote Unit, referred to as eRRU). The eBBU and eRRU pass through Optical fiber or cable connection, using common public radio frequency interface protocol for data interaction. In the LTE system, the network connection between the BBU and multiple RRUs will occupy a large amount of transmission bandwidth. The transmission bandwidth of the current transmission access network is difficult to meet. It is ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L27/26
CPCH04L27/3405H04L27/2634H03M7/3059H03M7/3068
Inventor 王美英孙洪李伟
Owner ZTE CORP