Software defined wireless network system architecture and method for LTE small base station ultra dense networking

Abstract

The invention discloses a software defined wireless network system architecture and method for LTE small base station ultra dense networking. The method comprises the following steps: a mobile terminal is accessed to an LTE small base station, wireless resources of the small base station is forwarded to an SDN controller of the data center through an SDN switch, the interface for mutual communication between the LTE small base station and the SDN controller controlled by the wireless network is a southbound interface API, and a northbound interface API can flexibly combine the functions in the controller according to different new service deployment requests. The SDN controller realizes the separation between the control surface and the data surface through a software defined mode, achieves the complete control of the wireless access network part, and achieves the division of the services of the core network; the system capacity of the wireless access network can be increased and the coverage of the wireless access network can be enhanced through interference coordination, load balancing and other technologies; and the internal flow table of the switch can be flexibly configured by monitoring the port of the SDN switch in the dense network, and thus the backhaul network can reach a load balancing state.

Description

technical field [0001] The present invention designs a software-defined wireless network architecture and method for LTE small base station ultra-dense networking, which can be deployed in public areas with high crowd density to make up for the lack of throughput, and belongs to the technical field of wireless communication. Background technique [0002] With the rapid development of Internet applications and the explosive growth of demand for multimedia data services, the current wireless network, such as: LTE network, WIFI network, 3G network. It is difficult to meet the data volume requirements of this kind of concurrency. Therefore, in the future network, Ultra Dense Network (UDN) is a key solution to solve the above problems. Research and experiments on ultra-dense networking quickly become a hot topic at home and abroad. [0003] Using LTE small base stations to quickly and densely deploy regional networks can enhance the coverage of wireless signals, quickly improve...

AI Technical Summary

Problems solved by technology

However, when SDN technology is applied to wireless networks, especially LTE networks, due to the complexity of the LTE system framework, the requirements for various performances in the network are high, and it is difficult to meet the diverse and flexible needs of users in dense areas.

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