Data forwarding tunnel determination method, access and mobility management equipment and base station

Abstract

The invention provides a data forwarding tunnel determination method, access and mobility management equipment and a base station. The method comprises the following steps of: receiving data forwarding information of target UE forwarded by an MME, and acquiring a QoS flow configured for each bearer of the target UE by a 5G core network and a mapping relation between the bearer and the QoS flow; wherein the data forwarding information comprises a bearing list distributed to the target UE by the EPS, and an indication of whether data forwarding exists in each bearing corresponding to the targetUE determined by the 4G base station; sending the data forwarding information, the configured QoS flow and the mapping relation between the bearer and the QoS flow to a target 5G base station; and receiving the forwarding tunnel information of the 5G base station configured by the target 5G base station for the target UE according to the data forwarding information, the configured QoS flow and themapping relationship between the bearer and the QoS flow. According to the scheme provided by the embodiment of the invention, the tunnel allocation of the data forwarding of switching from the EPS to the 5G system is realized under the conditions that the existing EPS system is not influenced and the signaling consumption is not increased, and the completion of the data forwarding is ensured.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for determining a data forwarding tunnel, access and mobility management equipment, and a base station. Background technique [0002] With the development of mobile communication systems, the development of the fifth-generation mobile communication 5G system is changing with each passing day. The 5G system can provide user equipment UE with greater bandwidth and higher transmission rates. Because the 5G network deployment in the early stage cannot be too mature, and the current LTE network coverage and technology are very mature; in order to provide better services to UEs and ensure business continuity, support UEs in 5G systems and current mainstream LTE systems Seamless switching between is particularly important. [0003] The protocol data unit session PDU session of the 5G system is different from the public data network PDN connection form of the evo...

AI Technical Summary

Problems solved by technology

When it is necessary to switch to the 5G system in the future, the 4G base station will indicate whether there is forwarded data on a certain QoS flow according to the format (PDUSession+QoS flow) in the target system to which the current bearer is mapped. In this way, the existing The EPS system has an impact and increases signaling consumption

Images