Data decompression and decompression processing methods and devices

A technology of decompression and data, applied in the field of communication, can solve the problems that affect the quality of packet flow communication, and no solution has been proposed, so as to achieve the effect of improving communication quality and reducing packet loss

Inactive Publication Date: 2013-04-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These compressed packets that cannot be decompressed will affect the communication quality of the entire packet stream to a

Method used

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  • Data decompression and decompression processing methods and devices
  • Data decompression and decompression processing methods and devices
  • Data decompression and decompression processing methods and devices

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] This embodiment is described from the perspective of a decompressor. Figure 4 It is a flowchart of a data decompression method according to Embodiment 1 of the present invention. Such as Figure 4 As shown, the method includes:

[0039] Step S402, the decompressor sends feedback information for notifying the compressor of the synchronization context, where the feedback information is sent after the decompressor detects that the context is out of synchronization;

[0040] Step S404, after sending the feedback information, the decompressor buffers the subsequently received data packets to be decompressed;

[0041] Step S406: The decompressor receives synchronization information sent by the compressor for synchronization context;

[0042] In step S408, the decompressor decompresses the data packet to be decompressed according to the synchronization information.

[0043] Through the above processing steps, after the decompressor is used to send feedback informatio...

Example Embodiment

[0061] Example 2

[0062] This embodiment corresponds to Embodiment 1, and is explained from the perspective of a compressor. Figure 7 It is a flowchart of a data decompression processing method according to Embodiment 2 of the present invention. Such as Figure 7 As shown, the method includes:

[0063] Step S702, the compressor receives the feedback information of the synchronization context sent by the decompressor, where the feedback information is sent after the decompressor detects that the context is out of synchronization;

[0064] Step S704: After receiving the feedback information, the compressor sends synchronization information for synchronizing the context to the decompressor, where the synchronization information is used to decompress the data packets to be decompressed buffered by the decompressor after sending the feedback information. compression.

[0065] Through the above processing steps, the function of the compressor is improved, which corresponds to the functio...

Example Embodiment

[0069] Example 3

[0070] The main design idea of ​​this embodiment is that after the decompressor finishes sending the negative feedback packet, it buffers the subsequently received compressed packet, and when the desired IR / IR_DYN packet is received, it re-decompresses in reverse order and the previous decompression cannot be correct due to context out of synchronization. Unzip the compressed package. Finally, as many as possible continuous repairable compressed packets in the cache are delivered to the upper layer for processing, so as to minimize the impact of the bottom layer packet loss on the ROHC layer and improve the communication quality of the upper layer application. For details, see Picture 9 ,Such as Picture 9 As shown, the main design idea of ​​this embodiment includes the following processing steps:

[0071] Step S902: When the negative feedback information (STATIC_NACK / NACK) sent by the decompressor does not reach the compressor, the compressor sends the compres...

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Abstract

The invention provides a data decompression method, a data decompression device, a data decompression processing method and a data decompression processing device. The data decompression method comprises the following steps that: a decompressor transmits feedback information for informing a compressor of synchronizing a context, wherein the feedback information is transmitted when the decompressor detects the asynchronism of the context; after transmitting the feedback information, the decompressor caches a subsequently received data packet to be decompressed; the decompressor receives synchronization information for synchronizing the context from the compressor; and the decompressor decompresses the data packet to be decompressed according to the synchronization information. According to the scheme, a packet loss phenomenon caused by the asynchronism of the context is effectively reduced, and the communication quality is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data decompression and decompression processing method and device. Background technique [0002] Due to the limitation of physical conditions, the wireless link in the mobile communication system has a lower transmission rate and a higher bit error rate than the wired link. In order to effectively utilize limited wireless channel bandwidth resources, a robust header compression (RObust Header Compression, hereinafter referred to as ROHC) technology is introduced. The core of the ROHC technology is to transparently compress and decompress the information in the packet header between directly connected nodes by using the information redundancy between the packets of the service flow. [0003] The least significant bit (Least Significant Bits, LSB for short) algorithm is an important algorithm in the ROHC technology, and it is mainly used for compressing master sequence number ...

Claims

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Application Information

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IPC IPC(8): H04L1/16
CPCH04L1/1607
Inventor 史学红高翔董淑松孙以雷
Owner ZTE CORP
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