A data message transmission method and device applied to hfc network
A data message and datagram technology, applied in the field of communication, can solve the problems of inflexibility and low efficiency, and achieve the effect of improving the efficiency of network transmission
Inactive Publication Date: 2017-07-07
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to overcome the defect that the data message transmission method used in the HFC network in the prior art is not flexible enough and the efficiency is not high, thereby providing a data message transmission method and device applied to the HFC network to utilize wired The TV network does not have the characteristics of routing and forwarding. It compresses the Ethernet header and IP header of the second layer message, or compresses the IP header of the third layer message to improve the efficiency of transmission.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] The present invention will be further described now in conjunction with accompanying drawing.
[0039] In one embodiment, the HFC network adopts the IP over DVB encapsulation protocol, and the encapsulation protocol adopts the multi-protocol encapsulation protocol MPE.
[0040] Combine below figure 1 The implementation steps of the method of the present invention in this embodiment are described.
[0041] Method of the present invention comprises the following steps:
[0042] Step 101), the gateway and the terminal client negotiate the identification mode of the IP packet flow, and synchronize the context information of the IP packet flow;
[0043] Step 102), the client records the context information corresponding to the IP packet flow;
[0044] Step 103), the gateway compresses the IP message to be sent, and adds a message flow identifier to the compressed IP message, and then sends it to the client;
[0045] Step 104), the client reads the packet flow identificat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a data message transmission method applied to an HFC network. The method includes the steps that a gateway and a client side negotiate an identification method of some transmitted data message flow and synchronize contextual information of the data message flow; the client side records the contextual information corresponding to the data message flow; the gateway compresses messages of the data message flow to be transmitted and adds message flow identification to the compressed data messages according to the identification method of the data message flow and then sends the data messages with the message flow identification are added to the client side; the client side reads the message flow identification according to the identification method of the data message flow and recognizes the data message flow which the received data messages belong to according to the message flow identification. According to the method, the characteristic that routing forwarding does not exist in the HFC network is utilized, all fields of IP headers of three-layer messages or etheric headers and IP heaters of two-layer messages are compressed, and the network transmission efficiency is improved.
Description
technical field [0001] The invention relates to the communication field, in particular to a data message transmission method and device applied to an HFC network. Background technique [0002] The development of IP technology has solved the intercommunication and interconnection problem of heterogeneous networks, and provided a unified network layer bearing platform for applications on various networks. IP is the general trend of network development. The transmission stream of the new generation coding technology (H.264, AVS, VC-1, etc.) is based on the IP format, so the front-end must be IP-based, and the IP-based front-end will inevitably drive the IP-based transmission network. The final trend is that the entire network Of course, the IP of the cable TV network is also included. [0003] Developing IP data services on the cable TV network can give full play to the advantages of wide coverage and high bandwidth of the cable TV network to meet the increasing bandwidth requ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
CPCH04L69/22
Inventor 郑艳伟刘磊彭飞刘孝圣牛津
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI