Indirect real-time flux control system and its method
A technology for real-time traffic and control systems, applied in transmission systems, digital transmission systems, electrical components, etc., can solve problems such as inability to meet service delay restrictions, reduce real-time performance, and difficult to achieve large and small real-time performance, to reduce synchronization overhead, The effect of improving quality and reducing the overhead of flow control
Inactive Publication Date: 2012-07-04
ZTE CORP
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Problems solved by technology
If the entire group of data blocks is copied to one area and then read, the real-time performance will be reduced, and at the same time, the delay limit of the business may not be met.
This problem is mainly due to the inconsistency in the size of mutually exclusive objects, which makes real-time performance difficult to achieve.
Method used
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Embodiment Construction
[0036] The invention includes a network protocol for indirect flow control, an application improvement framework and a processing method for indirect flow control.
[0037] The architecture includes network protocols, upper-layer applications, and flow control processing modules. The flow control processing modules are based on caches and timers. For a schematic diagram of the architecture, see the attached figure 1 . In the figure, the upper-layer sender 141 and the upper-layer receiver 142 are application modules, and the network sending 131 and receiving control 132 are the network high-level control layer. When the data flow is downlink, the data is from the buffer to the network lower-layer protocol 12 and the driver layer 11. When uplink, the data From the network lower layer protocol and driver layer to buffer. The flow of information is represented as a line segment with arrows. Buffer and timer are used in coordination among the four components to achieve the purpo...
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The invention relates to an indirect control system and method of real time flow. The said system is composed of sending / receiving buffer memory and manipulative indexing queue. Each sending unit of big data block generated by each data is established relation with a sending index queue. Because the data generating and network sending does not happen at the same time and is not finished at one time, when generating the other big data block, the network layer sending is performed using the sending index queue, and the sending index queue is in duty-cycle operation. The management is performed based on the use proportion of the sending capacity of the said node and the receiving capacity of the opposite part to obtain the aim of flow control. The receiving end is operated in the same way. The network layer receives the small data block and the final consumer of data is big data block composed of small data blocks. The said system and method can greatly reduce the cost of flow control depending on protocol and the in-phase cost in node, and the real-time performance of data transmission on under layer in packet network is increased, and the transmission quality of stream media is effectively improved.
Description
technical field [0001] The present invention relates to real-time flow control in network transmission, more specifically, what method can be adopted to ensure the real-time transmission and reduce the cost of synchronization when the upstream and downstream cannot be strictly synchronized. Background technique [0002] In the circuit domain, packet switching domain, or other network forms, data is transmitted between network nodes in a single or group form. The same size is a frame, and the data block is a different size. Data is also copied between layers by software and hardware cooperation within the network layer. Flow control is generally the control of grouped data. The normal transmission of data can be guaranteed by adjusting the transmission speed. It is an important control factor in data transmission, but at the same time, it must take into account various real-time and synchronization requirements of the network and data. . [0003] The demand for flow control...
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IPC IPC(8): H04L12/56H04L12/863
Inventor 罗宏宇徐立峰曹刚
Owner ZTE CORP