CN105634993A

CN105634993A - Business driven-based satellite communication self-adaptive transmission method

Info

Publication number: CN105634993A
Application number: CN201510997673.3A
Authority: CN
Inventors: 张静; 蒋宝强; 苟晓刚; 马厚勇; 冯源
Original assignee: CETC 54 Research Institute
Current assignee: CETC 54 Research Institute
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2016-06-01
Anticipated expiration: 2035-12-28
Also published as: CN105634993B

Abstract

The invention discloses a business driven-based satellite communication self-adaptive transmission method, and relates to a self-adaptive transmission technology in the satellite communication field. Aiming at the characteristic that business in the satellite communication field is gradually transformed to diversification bearing, the business characteristics are tightly coupled with a transmission system, and a business driven-based self-adaptive transmission system is built. In comparison with the traditional technology, the method drives a flexible distribution mechanism of a time domain resource and a frequency domain resource through the business characteristics. The flexible distribution mechanism has the advantages of a TDMA system and an FDMA system. The fusion capacity of the business and the transmission system are further improved. Wireless resources are effectively used. The business driven-based satellite communication self-adaptive transmission method is especially suitable for improving the adaptive capacity of the wireless resources and the business in the IP business.

Description

Based on the satellite communications adaptive transmission method of business-driven

Technical field

The present invention relates to the technology for self-adaptively transmitting in satellite communication field, particularly relate to a kind of satellite communications adaptive transmission method based on business-driven.

Background technology

Along with the continuous progress of satellite communications technology, business also develops towards the direction of diversification, and in order to better promote the adaptation ability of business and transmittability, all kinds of adaptive technique is also assented and given birth to, and mainly contains the technology such as adaptive coding and modulating. Networking transmission system in satellite communication field, main system comprises TDMA system and FDMA system, TDMA system is suitable for large user and measures networking and apply, advantage is flexible but relatively FDMA system is low for efficiency, it is less that FDMA system efficiency comparison height is applicable to user, the applied environment that real time business is stronger. The application of two kinds of systems is mainly by time domain, and frequency domain resource carries out division and efficiently utilizes, and in order to adapt to the demand of different business better, resource should change along with the changes in demand of business, could adapt to the scheduling of customer need and network resource better.

In order to better by the adaptive transmission method based on business-driven, be applied in satellite communication system, it is very important for setting up flexible dispatching and apportioning method by the time domain of business-driven and frequency resource.

Summary of the invention

The present invention seeks to promote in satellite communication field, the utilization ratio of time domain and frequency domain resource, effectively in conjunction with the advantage of two class resources in business transmission, and the ability of business-driven is introduced among system, set up the resource allocation mechanism based on business characteristic, it is achieved the self-adaptation conversion capability of system.

The technical solution used in the present invention is:

Based on the satellite communications adaptive transmission method of business-driven, it is characterised in that comprise the following steps:

(1), after transmitting terminal is started shooting, networked by network management center after searching webmaster channel;

(2) characteristic of business is carried out perception and obtains QoS of survice demand by the business characteristic perception module of transmitting terminal, and QoS of survice demand is reported network management center;

(3) network management center analyzes for QoS of survice demand, obtains the time delay in QoS of survice demand, shake and speed, then distributes corresponding time-domain resource and frequency domain resource in a network according to time delay, shake and speed;

(4) transmitting terminal utilizes time-domain resource and the result of frequency domain resource distribution, business is mapped among the carrier slots of TDMA, it is achieved the adaptation of business and carrier slots;

(5) transmitting terminal starts business transmission module, the transmission of industry of going forward side by side business;

Complete the satellite communications Adaptive Transmission based on business-driven.

Wherein, in step (2), the characteristic of business is carried out perception and obtains QoS of survice demand by the business characteristic perception module of transmitting terminal, is specially:

Characteristic perception module is by detecting different business, such as data, video, voice, utilize traffic identification strategy storehouse and business characteristic information storehouse, carry out Classification and Identification for business, mainly mate with the feature being stored in storehouse, carry out traffic management simultaneously, finally export sensing results, sensing results comprises the time delay of business, shake, rate requirement, and these information are supplied to terminal, carries out time-domain resource for link layer and frequency domain resource maps and provides reference frame.

Wherein, in step (3), time-domain resource and the frequency domain resource of distributing correspondence in a network are specially:

If when the QoS demand of business demand promotes, the quantity that during lifting, gap takies, until taking whole carrier slots, if business demand can not be met, is then switched to and carries out mating on another two-forty carrier wave and map; Otherwise, if business requires to reduce in real time, then under the prerequisite meeting QoS demand, reduce carrier slots quantity, distribute to other users in net, it is achieved sharing of resource.

The present invention's tool compared with background technology has the following advantages

1. compared with prior art based on the satellite communications adaptive transmission method of business-driven, the demand of diversification business in satellite communication system after more can adapting to, especially the Developing Tendency of the whole network IP can be adapted to better, it is different from traditional coded modulation self-adaptation thinking, the concept of self-adaptation has been generalized to application and resource management layer.

2. set up with the ability of service-aware, shoulder to shoulder the pattern of time-domain resource and frequency spectrum resource unified distribution, it is to increase resource utilization, set up the application system of a kind of flexibility from transport layer system angle, just by the characteristic of business, the management of resource is driven.

Accompanying drawing explanation

Fig. 1 is business characteristic perception block diagram

Fig. 2 business characteristic perception module work flow process

Fig. 3 is time-frequency resource allocating block diagram.

Embodiment

Below, the invention will be further described for composition graphs 1, Fig. 2, Fig. 3.

As shown in Figure 1, characteristic perception module is by detecting different business, such as data, video, voice, utilize traffic identification strategy storehouse and business characteristic information storehouse, carry out Classification and Identification for business, mainly mate with the feature being stored in storehouse, carrying out traffic management simultaneously, finally export sensing results, sensing results comprises the time delay of business, shake, rate requirement, these information are supplied to terminal, time-domain resource and frequency domain resource mapping offer reference frame are provided for link layer.

The concrete steps of business characteristic perception module work flow process, as shown in Figure 2:

First to the data of input, carry out the identification of physical port, tentatively business can be classified by this step, then data link layer agreement is identified, procotol identification, port identification, protocol identification, finally business feature is mated, export different business and the requirement of time delay, shake, speed is completed business characteristic perception module work flow process, obtain QoS of survice demand.

As shown in Figure 3, before starting time-frequency resource allocating, first receive the business characteristic perception information from business characteristic perception module, if QoS demand is constant, then maintain original resources allocation strategy; If QoS demand improves, then increase time slot allocation quantity, can satisfy the demands, terminate, can not satisfy the demands, be switched to another two-forty carrier wave, re-start time slot allocation, meet QoS demand; If QoS demand reduces, reduce time slot allocation quantity, it is achieved resource and other-end shared.

Claims

1. based on the satellite communications adaptive transmission method of business-driven, it is characterised in that comprise the following steps:

2. the satellite communications adaptive transmission method based on business-driven according to claim 1, it is characterised in that: in step (2), the characteristic of business is carried out perception and obtains QoS of survice demand by the business characteristic perception module of transmitting terminal, is specially:

3. the satellite communications adaptive transmission method based on business-driven according to claim 1, it is characterised in that: in step (3), time-domain resource and the frequency domain resource of distributing correspondence in a network are specially: