Intelligent bandwidth allocation method and allocation system for satellite data transmission
A bandwidth allocation method and bandwidth allocation technology, applied in the field of satellite data transmission, can solve problems such as increasing idle bandwidth
Active Publication Date: 2021-08-03
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology
It will inevitably lead to idle and waste of relative amount of bandwidth. When the optical network unit is heavily loaded, this waste will not be too large. As the load of the optical network unit is gradually reduced, the idle bandwidth will increase significantly.
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[0056] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
[0057] Various embodiments according to the present invention will be described in detail below with reference to the accompanying drawings.
[0058] figure 1 It is a schematic flow chart of an intelligent bandwidth allocation method for satellite data transmission according to the present invention, such as figure 1 As shown, the intelligent bandwidth allocation method for satellite data transmission includes:
[0059] Step S1, setting the maximum transmission limit speed of the link;
[0060] Step S2, obtaining the total link bandwidth;
[0061] Step S...
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The present invention provides an intelligent bandwidth allocation method and allocation system for satellite data transmission, including: setting the maximum transmission limit speed of the link; obtaining the total link bandwidth; judging whether the sum of real-time downlink code rates of real-time tasks is greater than the total link bandwidth ; If it is greater than the total bandwidth of the link, all real-time tasks and non-real-time tasks equally share the total bandwidth of the link; if it is not greater than the total bandwidth of the link, allocate respective bandwidths according to the real-time downlink code rate of each real-time task, and compare the total link bandwidth Subtracting the remaining bandwidth and the maximum transmission limit speed from the sum of the real-time downlink code rate, the non-real-time task equally divides the smaller one of the remaining bandwidth and the maximum transmission limit speed. The above method and system are applicable to complex bandwidth allocation scenarios such as various multi-tasks, multi-segment paths, multi-links, multi-sources, multi-destinations, multi-timeliness, dynamic requirements, multi-satellites, and multi-tasking modes.
Description
technical field [0001] The invention relates to the technical field of satellite data transmission, and more specifically, to an intelligent bandwidth allocation method and an allocation system for satellite data transmission. Background technique [0002] The existing bandwidth allocation technology is mainly for bandwidth allocation under short-distance links or long-distance links. It is basically a pure bandwidth allocation algorithm. The link situation is generally relatively simple, not systematic, and not intelligent. Generally, only the role level is considered, which is only suitable for relatively simple application scenarios, and is not suitable for applications in complex systems, such as: [0003] The Static Bandwidth Allocation (SBA, Static Bandwidth Allocation) solution is well developed in the passive optical network system, and it is a bandwidth allocation method with a fixed time slot length. The optical line terminal divides the uplink channel into severa...
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IPC IPC(8): H04L12/927H04B7/185H04L47/80
CPCH04B7/18595H04L47/801H04L47/805
Inventor 张箐程军李海龙杨东周旭王萌
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI