Carrier channel selection method for multi-frequency-time division multiple access (MF-TDMA) satellite system
A technology of MF-TDMA and carrier channel, which is applied in the field of wireless resource management of space-based mobile communication system, to achieve the effect of improving utilization rate, reducing generation of time slot fragments, and improving channel resource utilization rate
Inactive Publication Date: 2012-10-24
CHONGQING UNIV
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[0012] The purpose of the present invention is to provide a carrier channel selection method in the MF-TDMA satellite system, to ensure the rational use of carrier channels, reduce the problem of low resource utilization due to carrier channel load imbalance, and improve channel resource utilization
Method used
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Embodiment Construction
[0037] The present invention will be described in further detail below through specific examples.
[0038] Such as figure 2 , image 3 As shown, a carrier channel selection method in a MF-TDMA satellite system is carried out according to the following steps:
[0039] Step (1): The connection starts, and the user terminal sends a time slot application to the resource manager on the star as needed;
[0040] Step (2): The on-board resource manager presets the carrier into three types through the carrier label method, which are reserved carrier=α, shared carrier=β, and idle carrier=γ. Apply for a time slot, and judge whether the user terminal is sending a time slot application for the first time, if the user terminal is sending a time slot application for the first time, then proceed according to step (3); if the user terminal is not sending a time slot application for the first time, then proceed according to step (4) deal with;
[0041] Step (3): It is the first time that t...
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The invention discloses a carrier channel selection method for a multi-frequency-time division multiple access (MF-TDMA) satellite system. According to the method, a carrier channel tag conversion method is adopted, regulated carrier channel tags are timely updated according to a user number in a current carrier, and later access users can accurately know the actual condition of the current carrier to determine the load condition of the carrier and select a proper carrier for access, so that the channel resource utilization rate is increased, and a timeslot resource allocation failure condition caused by the disorder of the carrier channel tags and a fixed carrier channel appointment strategy during the multi-service connection of a user is avoided; and in addition, timeslots are combined by judging an actual regulated user number condition in the carrier, so that timeslot fragments can be maximally reduced, the reutilization of the timeslot fragments in a carrier channel is improved, the rate of rejecting timeslot resource applications of the user is lowered, and the utilization rates of resources are effectively increased.
Description
technical field [0001] The invention belongs to the field of aerospace information technology, and specifically relates to a method for selecting a carrier channel in an MF-TDMA communication satellite wireless resource manager applied in the field of aerospace information, especially a method suitable for managing uplink resources at satellite nodes to realize multiple A radio resource management method for a space-based mobile communication system for multi-service communication of users (including ground users or aviation aircraft). Background technique [0002] Space-based mobile communication system is a kind of wireless communication system based on satellite network, using various types of satellites in different orbits as network access nodes to realize mutual communication between mobile users or between mobile users and fixed users. The communication system has independent information acquisition, storage, processing and distribution capabilities on the satellite, ...
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Login to View More IPC IPC(8): H04W28/08H04W72/04H04B7/185
Inventor 曾孝平刘心迪陈千李清莲黄杰罗阳陈礼王志明朱斌刘国金
Owner CHONGQING UNIV