Access network of WiMAX system

Abstract

The present invention discloses a microwave access global interoperability access network system, the system at least includes BS, BSSN and DGW, wherein, BS includes a MAC / PHY module, and the MAC / PHY module is used for user terminals to be accessed Send the authentication information to the BSSN, and after receiving the authentication result returned by the BSSN, and when there is a service connection to be established, send a service request to the BSSN, and send it to the DGW according to the service tunnel information returned by the BSSN User plane data; BSSN, including an SGW module, the SGW module is used to interact with the core network according to the received authentication information, perform authentication on the user terminal, and send the authentication result to the BS, and according to The received service request establishes a service tunnel between the BS and the DGW, and returns service tunnel information to the BS; the DGW is used to send the user plane data sent by the BS to the Internet. Therefore, a cellular networking based on the IEEE 802.16 protocol is provided, and the networking has high robustness.

Description

technical field [0001] The invention relates to wireless broadband access technology, in particular to a worldwide interoperability for microwave access (WiMAX) access network system. Background technique [0002] The IEEE 802.16 protocol defines the fixed broadband wireless access (BWA) wireless metropolitan area network standard, which defines different physical layer technologies for different frequency bands. The scope of application of this standard is mainly for residential, small office / home office (SOHO), teleworkers and small business users (SME) markets. [0003] In December 2001, the Institute of Electrical and Electronics Engineers (IEEE) promulgated the IEEE 802.16 standard for providing the last mile wireless broadband access in the metropolitan area network, and its operating frequency band is between 10G and 66GHz. But the current 802.16 standard mainly includes three standards: 802.16a, 802.16RevD and 802.16e. Among them, 802.16a is designed for non-line-o...

AI Technical Summary

Problems solved by technology

This kind of connection means that the service data and control data in the base station controller need to be transmitted through the same interface, and the data volume of the service data is obviously larger than that of the control data, and with the expansion of the service, the data volume of the service data on the user plane will decrease. It will become larger and larger, which will adversely affect the data transmission of the control plane, and the increase of user plane data will impact the core network

Also, this type of connection prevents the network from being optimized as needed

[0015] In addition, for some operators, their core network is used to handle services such as billing. If they want to add some kind of communication based on the existing access network, the core network must provide the corresponding billing function. , such as being able to collect billing information, and perform billing and other related processing based on the billing information, that is, it is necessary to modify the core network, which obviously costs a lot

[0016] It can be seen from the above description that the current IEEE 802.16 protocol does not provide a cellular networking method, so it is impossible to realize cellular networking and operation based on this protocol. Network and operation, there will be problems such as the impact on the data transmission of the control plane, the impact of a large amount of user plane data on the core network, and the inability to optimize the network according to the needs.

Images