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Transmission frame sequence control method based on packet mechanism

A technology for sequence control and frame transmission, which is applied in the field of frame sequence control based on subcontracting mechanism, can solve problems such as unseen technical disclosure schemes, and achieve the effects of easy implementation, low cost, and simple circuit structure

Active Publication Date: 2015-04-22
AVIC NO 631 RES INST
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  • Abstract
  • Description
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  • Application Information

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  • Transmission frame sequence control method based on packet mechanism
  • Transmission frame sequence control method based on packet mechanism
  • Transmission frame sequence control method based on packet mechanism

Examples

Experimental program
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Embodiment Construction

[0065] A sending frame sequence control method based on subpacket mechanism, such as figure 1 as shown,

[0066] The control system of the control method includes a configuration register, a control state machine, a sending unit, a computing unit and a serial number generating unit;

[0067] Wherein, the control state machine controls the working sequence of the serial number generation unit, the calculation unit and the sending unit, so as to ensure that the three units can work in coordination. The configuration register stores the configuration information of the host and is used to enable the sending mode of the frame. The sending mode includes normal sending and abnormal sending, and the abnormal sending includes repeated sending, discarding and out-of-sequence;

[0068] The control state machine controls the serial number generation unit, the calculation unit and the sending unit to work according to the value of the configuration register; the serial number generation ...

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Abstract

The invention discloses a transmission frame sequence control method based on a packet mechanism. The method comprises the following steps that: (1) a host machine writes configuration data into a configuration register; (2) a control state machine starts a sequence number generating unit, a computing unit and a transmission unit; and (3) the sequence number generating unit generates a random control sequence number; the transmission unit checks a transmission mode started by the host machine; and corresponding frames are transmitted normally or transmitted repeatedly or discarded or transmitted disorderly according to the transmission mode till all frames are transmitted. The sequence of bottom-layer transmission frames belonging to the same top-layer data is controlled according to the configuration of the host machine, so that random repeated transmission, discarding and disordered transmission of the frames are realized. Control of a transmission frame sequence is realized through processing of a packet transmission sequence, so that the test demand of a network is met, and the aims of easiness in implementation, flexibility in use and reduction of cost are fulfilled.

Description

technical field [0001] The invention relates to a method for controlling a sending frame sequence, in particular to a method for controlling a sending frame sequence based on a subpackage mechanism. Background technique [0002] In the field of communication, data transmission is usually designed in layers, and the bottom layer and the upper layer have different requirements, so the data structures of the bottom layer and the upper layer often cannot be directly matched and need to be converted. Generally speaking, both the bottom layer and the upper layer have restrictions on the size of the transmitted data, but the data length that the upper layer can support is generally longer than the data allowed by the bottom layer, so it is always necessary to divide the upper layer data into packets before transmission. The long upper-layer data is decomposed into several small packets that meet the lower-layer transmission requirements. During normal transmission, it is enough to...

Claims

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Application Information

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IPC IPC(8): H04L12/26
Inventor 蒲恺李大鹏李玉发田园徐文杰
Owner AVIC NO 631 RES INST
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