A core network type indication method and communication device

Abstract

Embodiments of the present invention provide a method and a communication device for indicating a core network type, the method includes sending a first message from a first network node to a second network node, and the first message is used to indicate the first network node and the second network node The supported core network type realizes the indication of the core network type for communication between the first network node and the second network node, and further realizes the use selection of the core network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a core network type indicating method and communication device. Background technique [0002] At present, the long term evolution (LTE) system supports a centralized unit (CentralUnit, CU)-distributed unit (Distributed Unit, DU) separation architecture, that is, the base station supports one CU and multiple DUs; among them, the CU has wireless Resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP), public data node (public data access point, PDAP) protocol layer, DU has a radio link control (radio link control, RLC) layer , a medium access control (medium access control, MAC) layer, a physical layer (physical layer, PHY) layer. [0003] The standard also supports that LTE base stations can connect to the 5G core network of the new radio access technology (new radio, NR), but it has not been considered in the CU-...

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Problems solved by technology

[0003] The standard also supports that LTE base stations can connect to the 5G core network of the new radio access technology (new radio, NR), but it has not been considered in the CU-DU separation architecture where the LTE base station is connected to the LTE core network and the 5G core network at the same time. How to choose the core network

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