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Method and device for scheduling users in satellite beam

A user scheduling and user technology, applied in the field of satellite communication, to achieve the effect of low computational complexity

Active Publication Date: 2022-07-05
SHENZHEN AEROSPACE INNOTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the available bandwidth of each beam increases, frequency reuse brings co-channel interference between multiple beams, which leads to the interference-limited characteristics of the system

Method used

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  • Method and device for scheduling users in satellite beam
  • Method and device for scheduling users in satellite beam
  • Method and device for scheduling users in satellite beam

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] as attached figure 1 The method for scheduling users in a satellite beam in the illustrated embodiment of the present invention includes:

[0024] S1. Determine the frame group to which the user belongs based on the similarity of the projections between the user channel vectors.

[0025] In order to improve the high throughput performance in broadband satellite systems, for user scheduling problems involving a large number of users, current research can be divided into intra-beam scheduling and inter-beam scheduling, that is, two stages of user scheduling. In order to reduce the influence of the multicast mode, intra-beam scheduling is used in each beam to form a user group, and each user group is composed of users who share the same frame transmission.

[0026] Because users may experience different channel gains, the multicast mode in each beam limits the achievable rate of users in each frame group. Therefore, in order to mitigate this effect, the intra-beam schedul...

Embodiment 2

[0056] An embodiment of the present invention provides a satellite beam processing apparatus, including: a processing unit configured to determine a frame group to which a user belongs based on the similarity of projections between user channel vectors.

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Abstract

The invention discloses a method and a device for scheduling users in a satellite beam, and relates to the technical field of satellite communication. A method for scheduling users in a satellite beam includes: determining a frame group to which a user belongs based on the similarity of projections between user channel vectors. A satellite beam processing apparatus includes: a processing unit configured to determine a frame group to which a user belongs based on the similarity of projections between user channel vectors. The method for scheduling users in a satellite beam according to the embodiment of the present invention has at least the following beneficial effects: the frame group to which the user belongs is determined through the similarity of projections between user channel vectors, which can reduce mutual interference.

Description

technical field [0001] The present invention relates to the technical field of satellite communications, and in particular, to a method and device for scheduling users in a satellite beam. Background technique [0002] The broadband satellite communication system has the characteristics of low communication cost and large throughput bandwidth in addition to the advantages of satellite communication such as large coverage and distance-independent communication cost. Broadband satellite systems need to support multiple types of services, not only limited to broadcast or multicast services, but also extended to interactive services, etc., which requires broadband satellite communication systems to have high throughput. [0003] Since the multi-beam antennas installed on satellite systems generate a large number of high-gain beams, high-order frequency reuse can be employed in the service area of ​​the system to achieve this high throughput. However, as the available bandwidth ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B7/0408
CPCH04B7/1851H04B7/18519H04B7/0408
Inventor 闫泽涛冯汉炯李德志
Owner SHENZHEN AEROSPACE INNOTECH