A wireless self-backhaul resource scheduling method based on system stability

Abstract

The invention relates to a wireless self-backhaul resource scheduling method based on system stability, which belongs to the field of mobile communication. This method guarantees the system queue stability, wireless backhaul constraints, and the rate matching corresponding to the system achievable rate and the minimum user service quality, that is, the overflow probability satisfies certain constraints, and is carried out with the goal of maximizing the relative user quality satisfaction level. Dynamic resource scheduling. In each discrete time slot, according to the user's channel state information and the queuing conditions jointly considered by the macro base station and the small base station, the appropriate wireless resources are allocated to each user, and the queue length is dynamically adjusted according to the overflow probability in order to change the actual reachability of the system. Rate and joint dynamic adjustment of the wireless self-backhaul small base station and the backhaul and access resource allocation ratio of each user. The wireless self-backhaul resource scheduling method based on system stability proposed by the present invention can maintain system queue stability while maximizing the relative user quality satisfaction level.

Description

technical field [0001] The invention belongs to the field of mobile communication, and relates to a wireless self-backhaul resource scheduling method based on system stability. Background technique [0002] Driven by the rapid development of the mobile Internet and the growing demand for IoT services, 5G connection equipment density is required to increase by 10 to 100 times, and the spectral efficiency is increased by 5 to 10 times to ensure user experience at a speed of 500km / h. In order to meet the above requirements, the network architecture of 5G in the future will be based on ultra-dense heterogeneous networks, cloud computing technologies, etc., and Wireless Self-backhaul Networks (Wireless Self-backhaul Networks) will serve as the core of 5G ultra-dense networks (Ultra DenseNetwork, UDN). basic components. In the coverage area of ​​macro base stations, low-power small base stations are deployed to enhance coverage, and wireless millimeter waves or microwaves are use...

AI Technical Summary

Problems solved by technology

[0003] In the existing resource allocation schemes, most of them allocate resources statically, with maximization of throughput or spectrum efficiency as the optimization goal, often ignoring issues such as dynamic adjustment of resources and user service quality

In addition, the common optimization goal only considers the optimization of the problem at a certain moment, which is not suitable for the actual situation in which the optimization variables change with time in the actual process.

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