Intelligence quotient (IQ) data transmission method and device

Abstract

The embodiment of the invention discloses an intelligence quotient (IQ) data transmission method, which comprises the following steps that: s sample pints in a single-antenna single-carrier container block in IQ data to be transmitted are divided into p data blocks, and each data block comprises q sample points; the public index part exp of the q sample points in each data block, the exponential function f(exp) and the respective mantissa parts are respectively determined; the public index parts of the q sample points in each data block and the respective mantissa parts are respectively mapped into the corresponding data block; and p data blocks are transmitted through common public radio interface (CPRI) frames. When the embodiment of the invention is adopted, the s sample points are divided into p data blocks, each data block comprises the q sample points, the q sample points are determined into the public index part, the exponential function and the respective mantissa parts and are then mapped into the data block, the bit width required by the data transmission can be reduced, and the data transmission efficiency is improved.

Description

technical field [0001] The invention relates to the field of data transmission in the technical field of wireless communication, in particular to an IQ data transmission method and device. Background technique [0002] CPRI (Common Public Radio Interface) is an interface standard between REC (Radio Equipment Controller, wireless equipment controller) and RE (Radio Equipment, wireless equipment) in wireless base station equipment developed by several communication equipment manufacturers . [0003] In the existing CPRI IQ data transmission mode, each sampling point includes a real part I and an imaginary part Q, and is directly interleaved and transmitted according to the quantization bit width I and Q. [0004] The inventor found that the prior art has the following disadvantages: in the case of increased bandwidth or carrier, direct transmission of the original undistorted IQ data will lead to a surge in CPRI interface traffic, and it is necessary to physically increase th...

AI Technical Summary

Problems solved by technology

[0004] The inventor found that the prior art has the following disadvantages: in the case of increased bandwidth or carrier, direct transmission of the original undistorted IQ data will lead to a surge in CPRI interface traffic, and it is necessary to physically increase the number of CPRI transmission interfaces or increase the line rate of CPRI Three, in order to be able to adapt to the needs of greater IQ data traffic

This results in a substantial increase in hardware costs

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