Service quality-based resource round-robin scheduling method

Abstract

The invention discloses a service quality-based resource round-robin scheduling method. The method comprises the following steps that: (1) a macro base station divides the frequency band of the whole system into a frequency band special for a femtocell, a frequency band special for a macrocell, and a frequency band shared by the femtocell and the macrocell; (2) the resource allocation priority ofa user is determined according to the service quality requirement of the user; (3) the round-robin scheduling is performed on the femtocell user and the macro user until the frequency band special for the femtocell and the frequency band special for the macrocell are completely allocated; and (4) a frequency spectrum resource is not allocated to the macro user and the femtocell user by round-robin scheduling, and a certain frequency band is allocated to the scheduled user from the shared frequency band until the shared frequency band is completely allocated. In the method, the service qualityrequirement of the user using different services is referenced, and the frequency spectrum is allocated to the high-priority user, so that the high-quality resource block meeting the signal to interference ratio (SIR) requirement is obtained, the utilization of the frequency spectrum is more reasonable, and the resource utilization rate is improved. Therefore, the system throughput is improved.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and further relates to a polling resource scheduling method based on different service quality requirements of users in a situation where a home base station is deployed in a macro network, which can be used in an LTE+ system. Background technique [0002] In the long-term evolution system of the next generation mobile communication, in order to solve the interference management problem after the home base station is deployed in the macro network, various resource scheduling methods are used to avoid interference and improve the system capacity. Among them, the round-robin scheduling method is widely used in the resource scheduling process because of its simple and fair implementation. For example, Shen Jia et al. published a polling scheduling method in "3GPP Long Term Evolution (LTE) Technical Principles and System Design" in November 2008 by People's Posts and Telecommunicat...

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Problems solved by technology

[0003] From the above steps, it can be seen that the round-robin scheduling method seems to be a fair method for users, but due to the unreasonable resource allocation of this method, the efficiency of data transmission is affected.

This is mainly because the selection of service users in the second step is simply to select the user at the head of the queue to serve according to the queuing order of the users. For the same service of users, the data transmission rate in this time slot is relatively low, which affects the throughput of the system

However, when the channel conditions of some users are good, they may not be scheduled for a long time, which causes unreasonable allocation of wireless resources and affects the throughput of the system.

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