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 includes: receiving the data forwarding information of the target UE forwarded by the MME, and obtaining the quality of service QoS flow configured by the 5G core network for each bearer of the target UE, and the mapping relationship between the bearer and the QoS flow; wherein, the data forwarding information includes : The bearer list allocated by the EPS to the target UE, and the indication of whether there is data forwarding for each bearer of the target UE determined by the 4G base station; the data forwarding information, the configured QoS flow, and the mapping relationship between the bearer and the QoS flow are sent to the target 5G The base station: receiving the forwarding tunnel information of the 5G base station configured for the target UE by the target 5G base station according to the data forwarding information, the configured QoS flow, and the mapping relationship between the bearer and the QoS flow. The solution of the embodiment of the present invention realizes the tunnel allocation of the data forwarding for switching from the EPS to the 5G system without affecting the existing EPS system and without increasing signaling consumption, and ensures the completion of the data forwarding.

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

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