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Data compression method and device, data transmission method and system

A data compression and data technology, applied in the field of mobile communication, can solve problems such as large amount of information, and achieve the effect of avoiding in-band spurious, reducing the amount of transmitted information, and reducing the amount of compressed information

Active Publication Date: 2017-11-14
COMBA TELECOM SYST CHINA LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Based on this, it is necessary to provide a data compression method and device for the problem of a large amount of compressed information

Method used

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  • Data compression method and device, data transmission method and system
  • Data compression method and device, data transmission method and system

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Embodiment Construction

[0081] Various embodiments of the data compression method and device, data transmission method and system of the present invention will be described in detail below.

[0082] First, various embodiments of the data compression method are described.

[0083] see figure 1 , is a schematic flow chart of Embodiment 1 of the data compression method of the present invention, comprising steps:

[0084] Step S101: Read the amplitude information and phase information of each IQ data pair in each group of IQ data pairs respectively;

[0085] In a specific embodiment, before step S101, steps may also be included:

[0086] Divide consecutive IQ data pairs of the same number into one group. For example: group the IQ data stream, and each group contains N IQ pairs. For example, each group contains 4 IQ data pairs - (I0, Q0), (I1, Q1), (I2, Q2), (I3, Q3) four IQ data pairs, a total of 8 data. The I data in the IQ data pair is then converted to amplitude information and the Q data to phas...

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Abstract

A data compression method and device, data transmission method and system, wherein a data compression method includes the steps of: respectively reading the amplitude information and phase information of each IQ data pair in each group of IQ data pairs; The phase information of each group is truncated to obtain effective bit information correspondingly; the amplitude information and the effective bit information in each group of IQ data pairs are respectively formed into a new IQ data pair, and the new IQ data pair is carried out compression. In the data compression method and device of the present invention, when compressing, the phase information is first truncated and then compressed, thereby reducing the amount of compressed information. The data transmission method and system of the present invention, when compressing, the phase information is first truncated and then compressed; when decompressing, the effective bit information is filled with zeros to obtain the phase information, and finally converted into IQ data, thereby reducing transmission amount of information.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a data compression method and device, and a data transmission method and system. Background technique [0002] With the continuous development of mobile communications, communication devices have higher and higher requirements for transmission signal bandwidth, and require higher rates on transmission links. The use of data compression technology can increase the effective bandwidth of the communication device within a certain range of allowable delay, and can reduce the cost of the entire communication network while upgrading the communication network and expanding the capacity of the infrastructure. Due to the high requirements for real-time data transmission in mobile communication and the small processing delay requirements for compression algorithms, it is generally impossible to use traditional video, image or text compression and decompression algorithms, because such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M7/30
Inventor 廖世文罗漫江
Owner COMBA TELECOM SYST CHINA LTD
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