Outbound resource scheduling method and device of outbound capacity restricted asymmetric satellite channel

A technology with limited capacity and satellite channels, applied in the field of satellite mobile communication, it can solve the problems of algorithm complexity and the influence of the overall performance of the system is not considered.

Active Publication Date: 2016-06-08
湖南中电星河电子有限公司
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Problems solved by technology

[0011] 4. Algorithm complexity: In order to obtain the scheduling result of each outbound frame in time, there are certain requirements for the operation cycle of the scheduling algorithm, especially when the outbound business is busy
Although this scheduling algorithm is simple and eas

Method used

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  • Outbound resource scheduling method and device of outbound capacity restricted asymmetric satellite channel
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  • Outbound resource scheduling method and device of outbound capacity restricted asymmetric satellite channel

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Embodiment Construction

[0041] figure 1 It is a schematic flowchart of an outbound resource scheduling method for an asymmetric satellite channel with limited outbound capacity provided by the technology of the present invention.

[0042] Step 1: If figure 2 As shown, the ground control equipment first generates an outbound dispatch queue corresponding to beam j, and the outbound dispatch queue enters the buffer unit in a first-in-first-out manner; Packets, all enter the service scheduling queue k, and the user outbound data packets of the same service type are arranged in an independent service scheduling queue according to the order of arrival, and the data packets that arrive first are arranged in front of the queue.

[0043] Further, different business types correspond to different maximum response times T k and the priority weight Q k . Table 2 provides an example of service level requirements for different business types.

[0044]Table 2 Service Level Requirements for Business Types

[0...

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Abstract

The invention discloses an outbound resource scheduling method and device of an outbound capacity restricted asymmetric satellite channel. The device comprises a buffer unit, a business type parameter configuration unit, a user parameter configuring unit, a prior scheduling acknowledgement unit, a non-prior scheduling acknowledgement unit and a resource allocation unit. Outbound messages are classified according to outbound beams; the data businesses belonging to the same outbound beam are classified according to business priorities; the data businesses belonging to the same business type K are arranged according to a first-in first-out sequence; with respect to the data business queue of any one outbound beam, users of [delta]T<k,i> <N*T <subframe > are selected out from the outbound queues of various current business types k as ''emergency users''; the ''emergency users'' are arranged according to [delta]T<k,i>; the outbound data with low [delta]T<k,i> are transmitted preferentially; if there is no ''emergency user'', all outbound users are ranked according to a weighted proportional fair algorithm; and the users with high priories are transmitted firstly. According to the method and the device provided by the invention, the quality of service demands of various businesses of the users and the system performance are ensured.

Description

technical field [0001] The invention relates to the technical field of satellite mobile communication, and more specifically, to a method for outbound resource scheduling of an RDSS (Radio Determination Satellite Service) satellite mobile communication system. Background technique [0002] The RDSS service system is mainly composed of space segment, ground control center and user segment: [0003] The space segment consists of a satellite constellation consisting of several satellites. These satellites (outbound transponders, inbound transponders) forward the outbound signals sent by the ground central station and the inbound signals sent by the user machine, and have certain anti-jamming capabilities . [0004] The ground control center uses a large antenna with a transmission power of several hundred watts. It is responsible for channel allocation, user signal transmission and reception measurement and information transmission and reception processing, and manages and con...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/06
CPCH04W72/563H04W72/53
Inventor 欧钢朱祥维周蓉李井源黄新明陈玉敏刘增军龚航牟卫华
Owner 湖南中电星河电子有限公司
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