Flow scheduling method for coexistence of eMBB and uRLLC equipment

Abstract

The invention discloses a flow scheduling method for coexistence of eMBB and uRLLC equipment, which comprises the following steps of: when entering each preset downlink time slot, performing proportional fair scheduling on eMBB service data arriving at the initial stage of the time slot, and acquiring information rate information of the eMBB equipment and information rate information borne by an RB in the current time slot; analyzing a signaling interaction process of resource preemption of the uRLLC equipment on the eMBB equipment in a micro time slot in the time slot based on the current downlink time slot; designing a multi-objective optimization problem by using a preset eMBB equipment downlink and data rate formula, the channel quality of the uRLLC equipment and signaling overhead possibly brought by preemption, so as to determine a resource preemption scheme of the uRLLC equipment in the current time slot; and controlling each uRLLC device to preempt the corresponding RB according to the target traffic scheduling scheme so as to complete the traffic scheduling of the uRLLC. According to the invention, the coexistence of the eMBB equipment and the uRLLC equipment in the industrial Internet of Things network can be supported, the delay requirements of different services are met, the reasonable distribution of network resources is ensured, and the downlink throughput of the network is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and in particular to a flow scheduling method in which eMBB and uRLLC devices of the Industrial Internet of Things coexist. Background technique [0002] Industrial Internet of Things (IIoT), as an emerging branch of the Internet of Things, is designed for mission-critical industrial applications. The 6G network field plays a key role. [0003] In IIoT networks, typical industrial applications such as factory automation, power system protection, and power electronics control require Ultra-reliable Low-latency Communication (uRLLC) for real-time response and life-critical reliability; in addition, 4K High data rate applications such as video and virtual reality require the support of Enhanced Mobile Broadband (eMBB) type communication. Due to the large number of connections and high data rate requirements in IIoT, the coexistence of uRLLC and eMBB services is an important ...

AI Technical Summary

Problems solved by technology

However, whether through preemption or other mechanisms such as reserving resources for uRLLC, uRLLC's preemptive transmission will hurt the eMBB data rate

In addition, in the IIoT network, since the deployment of massive devices will lead to more frequent control channel communication, the preemption in uRLLC / eMBB coexistence scenarios will cause high additional control channel overhead

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