Method for granulating and delimiting IP packets
A granular, letter-packet technology, applied in the field of communications, can solve problems such as the inability to distinguish the location of IP headers and data information, and the inability of data to be self-delimited, so as to facilitate switching and forwarding processing, simplify front-end processing, and simplify underlying bearer Effect
Active Publication Date: 2009-10-21
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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[0012] The length of the IP data packet in IPv6 is variable based on the byte, which can range from the minimum byte to the maximum 65536 bytes, but this leads to the inability of the data to be self-delimited, that is, the corresponding data cannot be distinguished in a pure IP data stream. The location of the IP header and data information must be carried by other technical methods (such as Ethernet MAC frames, HDLC, ATM cells, etc.) in order to be transmitted on the link and delimited normally
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[0041] refer to Figure 1 to Figure 7 , the present invention is a kind of IP envelope granulation and delimitation that can locate data information without using technical methods such as Ethernet MAC frame, HDLC, ATM cell, SDL frame, etc. The method can adapt to different application occasions such as wired network and wireless network.
[0042] The electrical principle block diagram of the embodiment of the present invention is as Figure 7 shown. Figure 7 It includes envelope conversion circuit, envelope reverse conversion circuit, delimited sending control circuit and delimited receiving control circuit. The delimitation sending control circuit includes a local state report circuit and a delimitation envelope generating circuit, and the delimitation receiving control circuit includes a delimitation counter, a delimitation search circuit, a delimitation holding circuit and a delimitation out-of-step judgment circuit.
[0043] The role of the letter packet conversion ci...
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The invention discloses a method for granulating and delimiting IP packets, which relates to a technique for packaging IP packets on a data transmission network and a network link layer in the field of communication. The method granulates a data pack of an IPv6 into the IP packet, prescribes a granulating IP delimiting packet with k=1, and adopts the granulating IP delimiting packet to delimit link data. The method has the advantages of adapting to different application occasions such as a cable network, a wireless network and the like, and realizing self-delimiting of the packets, simplification of bottom layer load-bearing, high packaging efficiency, good support performance to a voice service, good interoperability with the IPv6, simplification of data exchange front-end processing, strong expansibility and the like on the link layer, and is particularly applicable to constructing a data voice mixed transmission network system.
Description
technical field [0001] The invention relates to a method for granulating and delimiting IP envelopes in the communication field. It is especially suitable for constructing data and voice mixed transmission network system in optical fiber internet, wireless internet, satellite communication network and other dedicated high-speed switching networks. Background technique [0002] In recent years, with the advancement of informatization in various countries in the world, the Internet based on the TCP / IP protocol is facing more and more challenges and problems while achieving great success. The root cause of these challenges and problems is The existing IPv4 protocol used by the Internet has many design defects. Compared with IPv4, the proposal of IPv6 has the following improvements and advantages: 1) expansion of address space; 2) simplification of header format; 3) introduction of extended header! Better support for mobility and security; 4) Introduce mechanisms such as flow ...
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IPC IPC(8): H04L29/06
Inventor 郭金鹏李兴和崔生保赵增辉韩建波孙士勇张惠峥刘永健
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP