A transmission method and network equipment

Abstract

An embodiment of the present application provides a transmission method and its network equipment. The transmission method includes: a control plane node receives a first message, and the first message includes the end point of the uplink tunnel of the first interface, the end point of the uplink tunnel of the second interface, and the first message. The end point of the downlink tunnel with three interfaces, the first interface is the interface between the user plane node and the second network node, the second interface is the interface between the user plane node and the third network node, and the third interface is the user plane node An interface with a core network node; the control plane node sends a second message, the second message includes the end point of the uplink tunnel of the first interface; the control plane node sends a third message, the third message includes the uplink of the second interface The tunnel end point and the downlink tunnel end point of the third interface. The communication method of the embodiment of the present application helps to clarify the allocation and indication of the downlink tunnel address on the user plane when the network segments of the interfaces are inconsistent, thereby helping to complete data transmission.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a transmission method and network equipment. Background technique [0002] In new access technologies such as 5G (New Radio, NR) technology, the base station can be composed of a centralized unit (Centralized Unit, CU) and a distributed unit (Distributed Unit, DU). The functions are split, and some functions of the base station are deployed in one CU, and the remaining functions are deployed in multiple DUs. Multiple DUs share one CU, which can save costs and facilitate network expansion. [0003] For some bearer data, the data offloaded by the user plane of the primary base station is directly sent to the DU of the secondary base station, and the destination address of the downlink data transmission is allocated by the DU of the secondary base station. Currently, the downlink address allocated by the DU of the secondary base station does not distinguish between inter...

AI Technical Summary

Problems solved by technology

[0003] For some bearer data, the data offloaded by the user plane of the primary base station is directly sent to the DU of the secondary base station, and the destination address of the downlink data transmission is allocated by the DU of the secondary base station. Currently, the downlink address allocated by the DU of the secondary base station does not distinguish between interfaces , if the network segment of the X2 interface (or Xn interface) between the primary base station and the DU of the secondary base station is different from the network segment of the F1 interface between the CU of the secondary base station and the DU of the secondary base station, then if the address allocated by the DU of the secondary base station is F1 network segment, then the main base station cannot use this address to transmit some bearer downlink data to the DU of the secondary base station

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