Session management method of LTE network, base station and OpenFlow controller

A technology of session management and controller, which is applied in the direction of network flow/resource management, connection management, electrical components, etc., can solve the problems that cannot meet the needs of ultra-dense networks, and achieve the effect of avoiding GTP tunnel reconstruction and improving efficiency
CN106937408AActive Publication Date: 2017-07-07ALCATEL LUCENT SHANGHAI BELL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ALCATEL LUCENT SHANGHAI BELL CO LTD
Publication Date
2017-07-07

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Abstract

A session management method of an LTE network, a base station and an OpenFlow controller are disclosed. The session management method comprises the following steps of interacting with the OpenFlow controller and establishing RRC connection with UE; through a reconfiguration message of the RRC connection, creating special-purpose wireless bearing on a wireless link; and sending attribute information of the created special-purpose wireless bearing to the OpenFlow controller so that the OpenFlow controller configures and forwards a path. Through the special-purpose wireless bearing created by a base station terminal, the OpenFlow controller configures and forwards the path, and dynamic creation and deletion can be achieved; and frequent GTP tunnel reconstruction is avoided so that the OpenFlow controller carries out coordinative control on the special-purpose wireless bearing aiming at a whole LTE network condition and efficiency of a backhaul network and an access network is increased.
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Description

technical field

[0001] The invention relates to the field of wireless communication, in particular to a session management method of an LTE network, a base station and an OpenFlow controller. Background technique

[0002] In the current LTE (Long Term Evolution, long-term evolution) or LTE-A (Long Term Evolution-Advanced, long-term evolution upgrade) network, from S-GW (Serving-GateWay, serving gateway) / PDN-GW (Packet Data Network-GateWay, Packet data gateway) to eNB (base station side) UE (user equipment) traffic data is generally backhauled through the GTP (GPRS TUNNELLING Protocol, GPRS tunneling protocol) tunnel, specifically as Picture 1-1 shown. However, when the UE moves to another new eNB, even if the IP address in the UE traffic data has not changed, the GTP tunnel needs to be re-established, specifically as follows Figure 1-2 shown. Obviously, such frequent GTP tunnel reconstruction cannot meet the needs of ultra-dense networks in the 5G era. Contents of the ...

Claims

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