Multi-service scheduling method

Abstract

The invention provides a multi-service scheduling method. The method comprises the steps of dividing a user to be scheduled into a priority scheduling user set and a non-priority scheduling user set according to time delay and average speed of service and a pre-set priority scheduling condition; preferentially scheduling users in the priority scheduling user set and taking requirements of QoS (Quality of Service) as a target in a scheduling process; ensuring that the requirements of the quality of service of the users needing to be scheduled are met; and meanwhile, selecting a matched user in the prior scheduling user set aiming at the users in the prior scheduling user set; aiming at the users in the prior scheduling user set, if the QoS requirements are met after a resource is distributed, putting the users into the non-priority scheduling user set; and furthermore, aiming at the users in the non-prior scheduling user set, carrying out scheduling according to instantaneous throughput and the sum of the lengths of queues of all services, so as to optimize a system capacity under the condition of guaranteeing service requirements. With the adoption of the multi-service scheduling method, the transmission speed can be improved, the service requirements can be better met, and the system capacity is improved.

Description

technical field [0001] The present invention relates to a scheduling technology of a mobile communication system, in particular to a multiple-input multiple-output (MU-MIMO)-based multi-service scheduling method of an LTE system. Background technique [0002] The 3GPP Long Term Evolution (LTE) system supports many different types of services, such as voice services, video streaming services, WWW services, and FTP services, etc., and these services are based on different QoS requirements, such as service delay, guaranteed bit rate, etc. It is divided into four categories: conversational service, streaming service, interactive service and background service. Usually, a user can use multiple services in parallel at the same time, such as browsing web pages or transmitting video streams while performing voice services. Therefore, in order to support this multi-user and multi-service application scenario, the multi-layer transmission resource allocation scheme of the LTE system ...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned commonly used resource scheduling algorithms, such as polling algorithm, MAX C / I algorithm and PF algorithm, do not take into account the QoS characteristics of the business when scheduling, so they cannot well meet the QoS requirements of the business

Although some single-service scheduling algorithms consider the combination of QoS requirements such as delay and packet loss rate and channel fading characteristics during scheduling, due to the coexistence of multiple real-time services and non-real-time services with different QoS requirements in actual systems, Therefore, these single-service scheduling algorithms cannot play a very good role in the priority selection and scheduling of single-user multi-service

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