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Time slot distribution management method for carrier channel in MF-TDMA satellite system

A technology of MF-TDMA and time slot allocation, applied in the field of aerospace information, can solve the problem that time slot resources cannot be allocated at the same time, and achieve the effect of reducing the difficulty of operation

Inactive Publication Date: 2009-01-14
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) In order to avoid conflicts, the same time slot resource cannot be allocated to two connections at the same time
Therefore, in comparison, the second method is more suitable for the time slot management of satellite communication, but in the continuous management process, time slot fragments will inevitably appear in the time slot resource table after multiple allocations and releases, correspondingly bringing How to effectively manage slot fragments and quickly find free slot resources

Method used

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  • Time slot distribution management method for carrier channel in MF-TDMA satellite system
  • Time slot distribution management method for carrier channel in MF-TDMA satellite system
  • Time slot distribution management method for carrier channel in MF-TDMA satellite system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] A carrier is divided into 128 time slots within a superframe time. Initially, the channel allocation result Image 6 , the time slot resources in the channel are allocated to five time slot resource applications A(16), B(32), C(8), D(24), E(48). D is divided into two resource blocks of 16 and 8, and E is divided into two resource blocks of 32 and 16.

[0100] After connection B and D release the connection, their carrier time slot resource occupancy is as follows: Figure 7 As shown, the number of free time slots at this time is 56 (128-16-8-48=56).

[0101] If two time slot applications H(16) and K(40) are received in sequence at this time, according to the partner optimization search method, the processing process of time slot application H(16) is as follows:

[0102] 1. The terminal sends a time slot application H (16) to the resource manager;

[0103] 2. The resource manager receives the time slot application H (16);

[0104] 3. The number of free time slot reso...

Embodiment 2

[0124] After the connections A, B, and D are released, the resource occupancy is as follows: Figure 11 As shown, if connection F initiates a time slot application F (64) of 64 time slots at this time, the current number of available time slot resources (72) can meet the requirements of connection F, and in the layer whose time slot group size is 64, None of the groups are directly assignable. It is necessary to locate and adjust connection C in group 0.

[0125] The time slot allocation process is specifically as follows:

[0126] 1. The terminal sends a time slot application F (64) to the resource manager;

[0127] 2. The resource manager receives the time slot application F (64);

[0128] 3. The number of free time slot resources in the current carrier is 72, which can meet the time slot application requirements of 64 time slots in F;

[0129] 4.64=2 6 , no division of time slot blocks is required, and positioning allocation is performed on time slot blocks with a size...

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Abstract

The invention discloses a time slot allocation management method for carrier channel in MF-TDMA system. In the method, using time slot tree as management target, simplifying representation method of time slot allocation result, introducing partnership for optimized positioning for time slot block in resource tree, placing link of similar release time in group for partnership, obtaining complete usable time slot resource, dividing time slot application into several time slot block with size of 2<n> for fitting each layer time slot group size in time slot resource tree, recording each time slot block as S<n>, that is, dividing link request time slot number N into sum of 2<n>, N=2<k>+2<l>+...+2<m>, in which k,l,m being natural number and k>l>m>=0, searching one by one from big to small for suitable node for time slot allocation in time slot resource tree according to partner optimized positioning method, adopting recursion repositioning adjusting method for systemizing time slot fragment of time slot resource tree to promote time slot utilization and time slot allocation success rates when time slot group which partner optimized method positioned can not be directly allocated.

Description

technical field [0001] The invention belongs to the field of aerospace information technology, and in particular relates to a method design for allocation and management of time slots in 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 in satellite nodes. The link resource is a wireless resource management method for a space-based mobile communication system that realizes multi-service communication of multiple 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, pr...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04B7/212
Inventor 张涛张军董启甲
Owner BEIHANG UNIV
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