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Data packet structure

A data packet and data packet receiving technology, applied in the field of data packet structure, can solve the problems of increasing wired and wireless network traffic, reducing traffic, etc.

Inactive Publication Date: 2007-01-31
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, an infinite number of data packet transmissions will occur between the above-mentioned router 31 and router 32, and unnecessary transmission operations of the same data will occur, thereby reducing the performance of the above-mentioned routers 31, 32 and RF equipment 30, and simultaneously increasing the number of cable connections. and the traffic on the wireless network

Method used

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  • Data packet structure
  • Data packet structure

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Embodiment Construction

[0041] Such as image 3 As shown, the data packet includes: an additional information (Preamble) field for forming the beginning of the data packet that prompts the beginning of the data packet; a synchronization control (Sync Control) field; a MAC address for including the length (size) of the received data packet A layer control section; transmitted data; an error detection section (CRC) for detecting an error at the time of packet transmission. The following will take the data packet generated in the master device (MD) 10 and transmitted to the slave device (SD) 11 as an example for illustration.

[0042] More specifically, the additional information field at the start of the packet is used to indicate the start of a packet to the slave device (SD) 11, and the additional information field has a size of 3 bytes. Wherein, when the value contained in the above-mentioned additional information field is '0xAAAAAA' (wherein, '0x' represents a hexadecimal number), the slave devic...

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Abstract

The invention is a data packet structure, comprising: data packet starting part for prompting data packet starting; layer control part comprising data packet length domain to receive data packet; data to be transmitted; and error detecting part for detecting errors of data packet transmission, where the data packet starting part at least comprises added information domain and synchronous control domain for determining end of added information domain. And it uses data length (size) in data packet to raise data packet receiving efficiency and improves data receiving accuracy and can prevent repeated transmission of the same data packet in the LAN combined of wired or wireless networks.

Description

technical field [0001] The invention relates to a data packet structure. Background technique [0002] A home network refers to a local area network that connects multiple digital home appliances to each other in order to enjoy comfortable, safe, and economical life services indoors and outdoors at any time. With the development of digital signal processing technology, refrigerators or washing machines, which were previously called white goods, have gradually been digitized. With the integration of home appliance application system technology and high-speed multimedia communication technology into digital home appliances, and the continuous introduction of new forms of information home appliances, The above-mentioned home network technology is further developed. [0003] figure 1 It is the structure of the data packet in the prior art, and the structure of the data packet in the figure represents the power line communication specification of the LonWorks protocol. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
Inventor 李军石
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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