Multiuser-oriented relay satellite space-time frequency domain resource dynamic scheduling method

A technology of time-frequency resources and relay satellites, applied in radio transmission systems, network planning, electrical components, etc., can solve problems such as priority conflicts, time conflicts, and difficult deployment of satellite resources, so as to improve scheduling weight and scheduling priority Level, improve the effect of spectrum utilization

Active Publication Date: 2017-03-15
CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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Problems solved by technology

[0025] As more and more wireless communication applications need to use relay satellites, domestic relay satellite communication resources are becoming more and more scarce. When multi-users use relay satellite resources, time conflicts and priority conflicts are likely to occur, which makes it difficult to allocate satellite resources. Problem, the purpose of this invention is to provide a multi-user-oriented method for dynamic scheduling of relay satellite space-time-frequency domain resources, which can further improve the utilization rate of spectrum resources and reduce the Use costs, increase user capacity, and improve economic benefits

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  • Multiuser-oriented relay satellite space-time frequency domain resource dynamic scheduling method
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  • Multiuser-oriented relay satellite space-time frequency domain resource dynamic scheduling method

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[0069] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0070] Such as figure 1 As shown, different services enter the satellite resource scheduler, waiting for the unified allocation of relay satellites, and the scheduler allocates time-frequency resource blocks (RB) to different services according to the scheduling algorithm.

[0071] This embodiment improves the traditional scheduling algorithm optimized for a single target, and proposes a multi-user-oriented space-time-frequency domain relay satellite communication resource dynamic scheduling method under the premise of guaranteeing user task delay requirements. This method is oriented to the application scenario of multiple users using relay satellite resources, and proposes an improved DPLS algorithm based on time-frequency resources in each space dimension (different relay satellites) that is sensitive to task priority and packet loss rate e...

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Abstract

The invention discloses a multiuser-oriented relay satellite space-time frequency domain resource dynamic scheduling method. The method comprises the following steps: I, receiving different paths of user data streams; II, calculating weight values of the paths of user data streams; and III, allocating time-domain resource blocks to the user data streams according to the weight values. Through adoption of the multiuser-oriented relay satellite space-time frequency domain resource dynamic scheduling method, comprehensive consideration is given to the factors of task priority, time delay requirement, packet loss rate, throughput and application time sequence, and reasonable satellite resources are allocated to a plurality of users on a space-time domain. Specific to a relay satellite control and management center, the spectrum utilization rate and network throughput of relay satellite resources are increased. From the aspect of the users, the service quality of different services of the users is ensured, and the user demands are met.

Description

technical field [0001] The invention belongs to relay satellite communication multi-user access technology and solves the problem of dynamic scheduling of relay satellite resources used by multiple users. The present invention comprehensively considers influencing factors such as system throughput, task priority, user signal quality, and task delay requirements, and proposes a multi-user-oriented relay satellite space-time-frequency domain resource dynamic scheduling model. This technology innovatively finds an improved relay satellite resource allocation method between system throughput and multi-user fairness, which can improve the spectrum utilization and network throughput of relay satellite resources. [0002] technical background [0003] In relay satellite communication systems, space-time-frequency domain resource scheduling is a research content that cannot be ignored, and plays a vital role in improving user service quality. From the perspective of the relay satell...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W72/04H04W72/08H04B7/185
CPCH04B7/18513H04W16/10H04W72/0446H04W72/0453H04W72/54
Inventor 刘冰蒋丰亦魏春燕朱赟恩王伟长
Owner CHINESE AERONAUTICAL RADIO ELECTRONICS RES INST
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