Smart 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: 2019-04-12
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 invention discloses smart bandwidth allocation methods and allocation system for satellite data transmission. A method comprises the steps of setting the maximum link transmission limited speed; obtaining a total link bandwidth; judging whether a sum of real-time downlink bit rates of real-time tasks is greater than the total link bandwidth or not; equally allocating the total link bandwidth to all real-time tasks and non-real-time tasks if the sum is greater than the total link bandwidth; allocating respective bandwidth according to the real-time downlink bit rate of each real-time task if the sum is not greater than the total link bandwidth, comparing the rest bandwidth obtained through subtraction of the sum of the real-time downlink bit rates from the total link bandwidth with themaximum transmission limited speed, and equally allocating a smaller one of the rest bandwidth and the maximum transmission limited speed to the non-real-time tasks. The method and the system are applicable to various complex bandwidth allocation scenes such as a multi-task scene, a multi-way scene, a multi-link scene, a multi-source scene, a multi-destination scene, a multi-timeliness scene, a dynamic requirement scene, a multi-satellite scene and a multitask mode scene.
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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Login to View More 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