State transition method and device based on robust header compression

Abstract

Disclosed are a state transition method and apparatus based on robust header compression (ROHC), and a computer storage medium. The method comprises: determining that a state machine of a compressor is in an initial IR state, and when it is learned that a decompressor corresponding to the compressor can only successfully parse a static field of a service stream packet header, transiting the state of the state machine of the compressor from the IR state to a first order FO state; and when it is learned that the decompressor corresponding to the compressor can successfully parse the static field and a dynamic field of the service stream packet header, transiting the state of the state machine of the compressor from the IR state to a second order SO state; determining that the state machine of the compressor is in the FO state, and when it is learned that the decompressor corresponding to the compressor can successfully parse the dynamic field of the service stream packet header, transiting the state of the state machine of the compressor from the FO state to the SO state; and determining that the state machine of the compressor is in the SO state, and when it is learned that the decompressor corresponding to the compressor fails to parse the dynamic field of the service stream packet header within a preset time threshold, transiting the state of the state machine of the compressor from the SO state to the FO state.

Description

technical field [0001] The present invention relates to a wireless communication technology based on Robust Header Compression Protocol (ROHC, Robust Header Compression Protocol), in particular to a ROHC-based state transition method and device. Background technique [0002] Usually, ROHC divides the header information of the packet into two parts, the static domain and the dynamic domain. Among them, the static field refers to the fields in the packet header of the service flow that rarely change or hardly changes; the dynamic field refers to the fields that change frequently in the packet header of the service flow. [0003] The header compression technology is represented as data interaction between the state machine of the compressor and the state machine of the decompressor. [0004] Wherein, the state of the state machine of the compressor includes three states: an initial (IR, Initialization and Refresh) state, a first order (FO, First Order) state, and a second orde...

AI Technical Summary

Problems solved by technology

[0006] It can be seen that according to the packet decompression situation, the state machine of the compressor and the state machine of the decompressor need to frequently migrate between different states, thus increasing the number of migrations and reducing the processing speed and efficiency of state machine resources

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