Switching and packet scheduling method suitable for satellite communication system hopping beam
A satellite communication system and packet scheduling technology, applied in the field of satellite communication, can solve the problems of inability to realize, greatly increase the number of output ports of on-board switches, disadvantage, etc., to meet communication needs, improve resource utilization, and improve system service quality. Effect
Active Publication Date: 2019-11-29
ARMY ENG UNIV OF PLA
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In the design of the existing on-board switching system for spot beams, the on-board switching ports correspond to the service areas of the spot beams one by one. The port to be sent out; when using beam hopping, each service area covered by the hopping beam corresponds to an output port. When the number of service areas is large, the number of output ports of the on-board switch will be greatly increased, which is inherently scarce for resources It is very unfavorable for the spaceborne equipment, and it is even impossible to achieve
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[0022] A method for switching and grouping scheduling applicable to beam hopping in a satellite communication system, comprising the steps of:
[0023] (1) Perform two-level addressing label exchange in the hopping beam;
[0024] (2) Dynamic scheduling of beam-hopping and beam-hopping methods according to the status of the wave port queue.
[0025] Two-level addressing label exchange in beam hopping; in a satellite communication system with on-board switching and routing capabilities, the on-board routing switch is usually used to implement routing addressing and switching of messages.
[0026] In the beam-hopping working mode, the resource allocation unit in the on-board network control will divide the resources according to the service application status of each beam user sent by the on-board queue management and scheduling module, that is, the queue status, and the division result will directly affect In the hopping process of beam hopping, while generating the beam hoppin...
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The invention discloses a switching and packet scheduling method suitable for a satellite communication system hopping beam. The method comprises the following steps: (1) carrying out two-stage addressing label switching in the hopping beam; and (2) dynamically scheduling the hopping mode of the hopping beam according to the queue state of the wave position port. According to the invention, a two-stage addressing label switching method is used for solving the problems of multiple ports corresponding to the hopping beam and difficult addressing, a dynamic packet scheduling method based on a queue state is used for improving the resource utilization rate of the hopping beam, the service quality of the system is improved, and the communication requirements of users are better met.
Description
technical field [0001] The invention relates to the technical field of satellite communication, in particular to a beam-hopping switching and packet scheduling method suitable for satellite communication systems. Background technique [0002] In the new generation of satellite communication systems, multi-spot beam technology is often used to achieve capacity expansion. On this basis, people have proposed a phased array agile beam technology, also known as beam-hopping technology, so that the service area of the beam is continuously generated in the entire coverage area. Changes to cover all service areas in a time-sharing manner. Each service area that a beam can cover is called a wave position, and a beam-hopping pattern is formed by covering different service areas in different time slots. Usually, the on-board network controller generates the frame plan and the beam-hopping pattern according to certain rules, and controls the hopping of the beam-hopping through certai...
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IPC IPC(8): H04B7/185H04W72/04H04L45/50
CPCH04B7/18519H04W72/046
Inventor 乔庐峰续欣
Owner ARMY ENG UNIV OF PLA