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A method and system for controlling delay jitter of cpri data transmission

A technology of delay jitter and data transmission, which is applied in the field of network transmission, can solve problems such as inability to dynamically smooth delay jitter, and achieve the effect of dynamically absorbing delay jitter and ensuring stability

Active Publication Date: 2021-08-17
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the uncertainty of delay jitter and the change of Ethernet network configuration, only using buffer pools to absorb delay jitter cannot dynamically smooth delay jitter.

Method used

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  • A method and system for controlling delay jitter of cpri data transmission
  • A method and system for controlling delay jitter of cpri data transmission

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0027] see figure 1 As shown, the embodiment of the present invention provides a control system for CPRI data transmission delay jitter, including a common public radio interface CPRI protocol processing module and a transponder, the transponder includes a CPRI data processing module, and the CPRI data processing module It is connected with the CPRI protocol processing module.

[0028] The CPRI data processing module is used to read CPRI data, and send a trigger signal to the CPRI protocol processing module according to the maximum transmission delay of the read CPRI data.

[0029] The CPRI protocol processing module is used to generate interface timing according to the CPRI protocol, and receives the trigger signal, dynamically adjusts the interface timing of outputting CPRI data after receiving the trigger signal, and receives the interface...

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Abstract

The invention discloses a control method and system for CPRI data transmission time delay and jitter, and relates to the field of network transmission. The method includes the steps of: reading CPRI data by a general public radio interface CPRI data processing module, and according to the read CPRI data Send a trigger signal to the CPRI protocol processing module, the CPRI protocol processing module dynamically adjusts the interface timing of the output CPRI data after receiving the trigger signal, and reads from the CPRI data processing module according to the adjusted interface timing The next frame of CPRI data. The CPRI data transmission time delay jitter control method provided by the invention can dynamically absorb the time delay jitter to ensure the stability of data transmission.

Description

technical field [0001] The invention relates to the field of network transmission, in particular to a control method and system for CPRI data transmission time delay jitter. Background technique [0002] The Common Public Radio Interface (CPRI) defines the interface relationship between a radio equipment controller (Radio Equipment Controller, REC) and a radio equipment (Radio Equipment, RE), and constitutes a remote system of a base station. [0003] At present, packet CPRI transmission is usually used. When REC sends CPRI basic frame to RE through Ethernet, REC generates CPRI basic frame under the action of CPRI master clock, and converts CPRI master clock into Ethernet clock, thereby encapsulating CPRI basic frame In the Ethernet frame, it is then transmitted through the forwarding of the Ethernet switch. At this time, the CPRI basic frame will pass through the Ethernet and reach the receiver. After the Ethernet frame is output to the Ethernet link, it is forwarded by th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04L29/06H04L12/26
CPCH04L43/0852H04L43/087H04L69/26H04W24/08
Inventor 程泉
Owner FENGHUO COMM SCI & TECH CO LTD
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