Multi-link aggregated data transmitting method and system

Abstract

The invention discloses a multi-link aggregated data transmitting method and a system, which is applied to systems comprising L2TP VPN of LAC and LNS. The method comprises the following steps: building a plurality of L2TP tunnels on a plurality of links between the LAC and the LNS; receiving the IP message coming from a piece of transmitting terminal equipment by the LAC, and executing the PPP encapsulation; transmitting the PPP frames to the LNS through the multiple L2TP tunnels built on the VPN; decapsulating the received PPP frames by the LNS as the original IP message transmitted by the transmitting terminal equipment, and transmitting to a piece of receiver terminal equipment. The multiple links can be aggregated as one logic link based on un-changing the source address and the destination address of the service and un-changing the original port, so seamless connection with the current internet can be realized. The method and system can be applied to communications of various service application types and have good university.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a data transmission method and system for multi-link aggregation on a public communication channel in a wireless and mobile environment. Background technique [0002] At present, the second-generation mobile communication technology, that is, the Global System for Mobile Communications (GSM) network has matured, and ordinary voice services are basically saturated. With the development of social science and technology, the innovation of communication technology is also changing with each passing day. The emergence of cellular mobile communication technology that supports high-speed data transmission, that is, the third generation mobile communication technology (3G), has brought the development of mobile communication into a new era of data services. . 3G technology makes mobile communication and the Internet more closely integrated, and it is getting closer to people's live...

AI Technical Summary

Problems solved by technology

It can be seen that although my country's 3G access network has been widely deployed, the penetration rate of 3G users is still very low. Therefore, there is still a lot of room for development of 3G applications to some extent.

[0004] 3G network requires good quality of service, backward compatibility and compatibility with fixed network, and high-speed multimedia service capabilities, etc., but the existing 3G technology still has a gap with this goal. 3G terminals support and extend multimedia services. Standby time, unified application platform, etc. need to be further improved. Due to network quality, terminal bottlenecks, and lack of suitable business models, the development of high-speed multimedia services that reflect 3G differentiated services is not ideal.

[0008] Although this transmission method uses multiple transmission links to expand the bandwidth of data transmission, this transmission model itself has a great defect: since the multi-mode terminal as the service receiver has multiple IP addresses, therefore, for For a business application type with only one destination port and one source port, its business data cannot be directly transmitted through multiple IP links, that is, figure 2 The transmission method shown cannot realize data transmission for some services

It can be seen that the existing multi-link transmission mode is not universal for services, and the services cannot be well expanded in the original terminals of the network.

Images