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QoS queue scheduling method, apparatus, and satellite communication system

A satellite communication system and queue scheduling technology, applied in the field of satellite communication, can solve the problem of low utilization rate of satellite resources, achieve the effect of improving utilization rate and ensuring characteristic requirements

Active Publication Date: 2019-01-22
COMBA TELECOM SYST CHINA LTD
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  • Claims
  • Application Information

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Problems solved by technology

In the process of realizing the present invention, the inventors found that the flow control method in the traditional satellite communication system at least has the problem of low utilization rate of satellite resources

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  • QoS queue scheduling method, apparatus, and satellite communication system
  • QoS queue scheduling method, apparatus, and satellite communication system
  • QoS queue scheduling method, apparatus, and satellite communication system

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Embodiment Construction

[0044] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0045] The brief working principle of the satellite communication system is that the entry (that is, the end station sends data to the central station) adopts the time division multiple access (MF-TDMA) method. MF-TDMA allows multiple user terminals to use different subcarriers, each subcarrier is divided into time slots, and the purpose of resource flexible allocation is achieved through comprehensive scheduling of two-dimensional resources in the time-frequency domain. In the uplink MF-TDMA system, existing studies have made the following restrictions on resource allocat...

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Abstract

The invention relates to a QoS queue scheduling method, comprising: acquiring scheduling information of each terminal station to be scheduled in a satellite communication system. The scheduling information includes the schedulable QoS queue, the amount of request data and the scheduling characteristics of the schedulable QoS queue. Determining a sub-carrier and a time slot resource corresponding to the sub-carrier which can be used for scheduling in a satellite communication system; according to the request data quantity and scheduling characteristic of each schedulable QoS queue, the sub-carrier and time slot resources are allocated to each corresponding schedulable QoS queue, and the scheduling result is generated. The scheduling result is sent to each end station. The scheduling resultis used to instruct each end station to schedule each schedulable QoS queue according to the scheduling result. By allocating sub-carriers and corresponding time slot resources to each QoS queue waiting for scheduling according to scheduling information of each end station, timely scheduling of QoS queues of each end station 14 is realized, and utilization rate of satellite resources is greatly improved.

Description

technical field [0001] The present application relates to the technical field of satellite communication, in particular to a QoS queue scheduling method, device and satellite communication system. Background technique [0002] With the development of satellite communication technology, modern satellite communication systems mainly include central stations and end stations. The central station is the command and dispatch center of the satellite communication system, responsible for the communication command and dispatch, voice exchange and data processing of each end station. The end station receives the command information from the central station and performs corresponding operations. [0003] In the satellite communication system, the types of user services include: real-time services, instant messaging services, broadcast services, and delayable file transfers. Due to the lack of satellite communication resources (subcarriers), sudden traffic conditions will appear in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/863H04L12/865H04L12/927H04B7/185H04L47/6275H04L47/80
CPCH04B7/18582H04L47/6275H04L47/6295H04L47/805
Inventor 张琼李俊
Owner COMBA TELECOM SYST CHINA LTD
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