Access network system with separated control and carrier and its communication implementation method

Abstract

The present invention discloses an access network system with the separation of control and carrying. The system comprises an access network control plane and an access network data plane and realizesthe separation of control and carrying. The access network control plane receives the isolated control information from the access network data plane, carries out control information interaction witha core network and controls the retransmission of the data of the access network data plane; the access network data plane performs the separation of control information and data of the flow coming from a user network and transfers the control information to the access network control plane; the data coming from the user and core networks is retransmitted according to the control information of the access network control plane. The present invention also discloses a method realizing communication in the access network system with the separation of control and carrying. Since the present invention realizes the separation of control and carrying in an access network, when carrier technology is changed, the control method of the network does not need to be changed correspondingly, thus increasing the expandability of the network and reducing the maintenance cost of the network.

Description

technical field [0001] The invention relates to access network technology, in particular to an access network system with separation of control and bearer and a method for realizing communication thereof. Background technique [0002] In the existing communication network architecture, the control and bearer in the access network are not separated. From the perspective of the entire network control, the access network architecture and network control methods are different due to different bearer technologies, and the integration of the access network cannot be realized. , when there are multiple operators in the network, due to the separate management of their services, the cross-domain mobility and handover of users are affected, and the access networks of different bearer technologies need to be managed separately, which also increases the user's It is technically difficult to move and switch between different access technologies; from the perspective of devices in the net...

AI Technical Summary

Problems solved by technology

[0002] In the existing communication network architecture, the control and bearer in the access network are not separated. From the perspective of the entire network control, the access network architecture and network control methods are different due to different bearer technologies, and the integration of the access network cannot be realized. , when there are multiple operators in the network, due to the separate management of their services, the cross-domain mobility and handover of users are affected, and the access networks of different bearer technologies need to be managed separately, which also increases the user's It is technically difficult to move and switch between different access technologies; from the perspective of devices in the network, the control and bearing are in the same bearer device. On the one hand, the bearer device contains a large number of control functions, which greatly increases the cost of the device, and due to hardware limitations , the performance of the control function is also affected, and the control function is also affected when the carrying equipment is upgraded, expanded, etc.; on the other hand, the control function is included in the carrying equipment, and new control functions need to be added. The entire bearer equipment needs to be upgraded, which increases the investment cost (CAPEX) and operation cost (OPEX) of the network

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