CN106301531B - Private network communication method based on satellite digital Transmission system - Google Patents

Private network communication method based on satellite digital Transmission system Download PDF

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Publication number
CN106301531B
CN106301531B CN201610716730.0A CN201610716730A CN106301531B CN 106301531 B CN106301531 B CN 106301531B CN 201610716730 A CN201610716730 A CN 201610716730A CN 106301531 B CN106301531 B CN 106301531B
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code
channel
satellite
private network
communication
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CN201610716730.0A
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CN106301531A (en
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耿直
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新昌县维利机械有限公司
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Publication of CN106301531A publication Critical patent/CN106301531A/en
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Abstract

The invention proposes a kind of private network communication methods based on satellite digital Transmission system, the digital channel that satellite digital Transmission system provides is given into time division multiplexing, and use transport-type code, the setting of type of call code and channel request code, transmission, judgement and processing working method, satellite communication subscriber terminal is set to have the function of dispatching communication, and the utilization rate and communication switching speed of satellite digital Transmission system can be improved, reduce user's usage charges, simultaneously, it may have be easy the feature implemented, be easy to use.

Description

Private network communication method based on satellite digital Transmission system

Technical field

The present invention relates to one kind by satellite digital Transmission system, wireless transmission interface, network transport interface, exchange control system The scheduling communication method based on satellite digital Transmission system of the compositions such as system, satellite communication subscriber terminal and outer office's communication user, Belong to satellite communication field.

Background technique

It is lower to the utilization efficiency of satellite channel in voice communication mode in current satellite communication system, it can not The special communication service project of offer to user, and user's usage charges are higher;The correlation technique similar with the present invention are as follows: specially Benefit number 2008100454117, the correlation technique describe a kind of " scheduling communication method based on satellite digital Transmission system ", but The technology is incomplete, can not adapt to existing satellite digital transmission system in an implementation.

Therefore, it is necessary to design a kind of satellite communication method, existing satellite digital transmission system is adapted to, can be mentioned for user It is scheduled for communication function, and the utilization rate and communication switching speed of satellite digital transmission channel can be improved, reduces user's usage charges.

Summary of the invention

The object of the present invention is to provide a kind of private network communication methods based on satellite digital Transmission system, adapt to existing Satellite digital transmission system, dispatching communication function can be provided for user, and the utilization rate of satellite digital transmission channel can be improved And communication switching speed, reduce user's usage charges;

To achieve the above object, the present invention introduces a kind of private network communication method based on satellite digital Transmission system, includes Have satellite digital Transmission system, wireless transmission interface, exchange control system, network transport interface, satellite communication subscriber terminal and Outer office's communication user, which is characterized in that the satellite communication subscriber terminal of the described exchange control system storage is current It include User Priority code, group's code in user information;In the call signaling code that the satellite communication subscriber terminal is initiated It include type of call code, type of call code is used to indicate the type of the secondary calling;The exchange control system and described Channel request code is provided in satellite communication subscriber terminal;Include in the transmission information that the satellite communication subscriber terminal is sent There is transport-type code, transport-type code is used to indicate the call signaling code and channel request code distinguished in the transmission information;It is described Exchange control system and satellite communication subscriber terminal execute following private network communication method under the control of the software program:

(1) data transmission channel that satellite digital Transmission system provides is time-multiplexed by exchange control system, and draws Multiple private network transmission channels are separated, corresponding private network transmission channel code is set;

(2) exchange control system control satellite digital Transmission system is whole by each satellite communication subscriber by instruction transmission The transmission channel scattering device at end is on each different private network transmission channel;

(3) the transport-type code in the transmission information that exchange control system sends the satellite communication subscriber terminal received Determined, confirm as call signaling code or channel request code, and carries out following corresponding treatment processes;

Exchange control system is used according to the satellite communication of call signaling code and user management the control system storage received The user information of family terminal is analyzed and processed, and is distributed to this time and is called corresponding channel request code, and stores the channel request The current user information of communication type corresponding to code, priority level, related satellite communications user terminal, exchange control system control The channel request code is sent to satellite communication subscriber terminal relevant to this calling by satellite transmission channel processed, receives channel Shen Please the satellite communication subscriber terminal of code send response user code, exchange control system is controlled according to the response user code received All response user codes are sent to satellite communication subscriber terminal storage relevant to this calling and shown by satellite transmission channel Show;Exchange control system according to channel request code, storage the channel request code corresponding to communication type, priority level, The current user information of private network state of transmission channel, the related satellite communications user terminal for corresponding to the secondary calling, to each channel Private network corresponding to the specified private network transmission channel being in idle condition of related satellite communications user terminal corresponding to application code Transmission channel code;

(4) the satellite communication subscriber terminal for initiating voice traffic transmission is preferential by the current channel request code of the machine and the machine Grade code sent by Satellite communication access channel, exchange control system according to receive channel request code, priority code It controls private network transmission channel and specified correspondence private network transmission channel code is sent to satellite communication subscriber relevant to this calling Terminal;The satellite communication subscriber terminal of voice traffic transmission is initiated after receiving specified private network transmission channel code, by special Private network transmission channel specified by net transmission channel code sends voice communication information;With the satellite with initiation voice traffic transmission The satellite communication subscriber terminal of communications user terminal same channel application code, it is special specified by the private network transmission channel code received The voice communication information code that satellite communication subscriber terminal is sent is received on net transmission channel;In the language of satellite communication subscriber terminal After the sound communication information end of transmission, exchange control system former specified occupancy of control release after the time is more than the delay time being arranged Private network transmission channel;Exchange control system is preferably that the call signaling code of high-priority users and channel request code provide private network Transmission channel;

(5) for satellite communication subscriber terminal after connecting with outer office's communication user completion communication call, exchange control system is logical The communication connection of network transport interface holding and outer office's communication user is crossed, and distributes to and communicates related satellite communication use with this Family terminal and outer office's communication user channel request code, and specified private network transmission channel code is distributed to the channel request code;Exchange control System processed stores the current user information of outer office's communication user and satellite communication subscriber terminal corresponding to the channel request code;It hands over It changes control system control satellite transmission channel and the channel request code is sent to satellite communication subscriber end relevant to this calling End;Satellite communication subscriber terminal is sending channel request code and is receiving after exchange control system sends back to private network transmission channel code, It occupies satellite digital transmission channel specified by the communication channel code and the external office's communication user of network transport interface carries out voice Communication information transmission;Outer office's communication user is when initiating the voice communication information transmission to satellite communication subscriber terminal, exchange control System processed channel request code according to corresponding to the outer office's communication user stored is sent out to related satellite communication subscriber terminal Private network transmission channel code corresponding to the channel request code is given, outer office's communication user is controlled by network transport interface and occupies private network Satellite transmission channel corresponding to transmission channel code carries out the transmission of voice communication information to related satellite communication subscriber terminal, has The satellite communication subscriber terminal of pass receives outer office's communication on the private network transmission channel specified by the private network transmission channel code received The voice communication information code that user sends.

The course of work and beneficial effect of the invention

The data transmission channel that exchange control system control satellite digital Transmission system provides satellite digital Transmission system It is time-multiplexed, and marks off multiple private network transmission channels, exchange control system control satellite digital Transmission system passes through finger Transmission is enabled, each satellite communication subscriber terminal transmission channel dispersion is arranged on different private network transmission channels, in this way, when having When multiple satellite communication subscriber terminals initiate call signaling code and the transmission of channel request code simultaneously, generation communication can be reduced and touched It hits;When satellite communication subscriber terminal initiates information transmission, wherein including transport-type code, characterizes this information and be transmitted as exhaling Be signaling code or channel request code, exchange control system determines the transport-type code, to different transport-types into The following different processing of row;When being called between satellite communication subscriber terminal, satellite communication subscriber terminal is transmitted by satellite It accesses channel and sends call signaling code, include local user code, priority code, type of call code, quilt in the call signaling code Exhale user code;After exchange control system receives call signaling code, according to calling party's priority, type of call code, called use It is corresponding to distribute to this time calling associated user for the user information and system channel working condition that family code, exchange control system store Channel request code, and it is whole to store communication type corresponding to the channel request code, priority level and related satellite communication user Current user information is held, the location information including working condition and place, wherein related satellite corresponding to channel request code The user information of communications user terminal refreshes with the working condition of the satellite communication subscriber terminal, the change of position, to guarantee When receiving voice communication information, exchange control system can be searched and use the satellite communication subscriber satellite communication subscriber terminal Terminal being capable of received satellite transmission channel, it may be assumed that at any time that it is current when the position of satellite communication subscriber terminal changes Position reports to exchange control system and records its latest position by exchange control system, so as to designated user be able to use it is special Net transmission channel;Exchange control system controls satellite transmission channel and channel request code is sent to satellite relevant to this time calling Communications user terminal, receive channel request code satellite communication subscriber terminal send response user code, exchange control system according to All response user codes are sent to that calling is relevant defends to this by the response user code received, control satellite transmission channel The storage of star communications user terminal and display, then each relevant satellite communication subscriber terminal is recognized that into this communication Which user has;Exchange control system according to channel request code, storage the channel request code corresponding to communication type, excellent First grade, private network state of transmission channel correspond to the current user information of the related satellite communications user terminal of the secondary calling, to each Corresponding to the specified private network transmission channel being in idle condition of related satellite communications user terminal corresponding to a channel request code Private network transmission channel code, in this way, satellite communication subscriber terminal can be made when initiating voice communication, exchange control system can Private network transmission channel is provided for it rapidly, reduces the channel request time;Receive the satellite communication subscriber terminal of channel request code Voice traffic transmission can be initiated, the communications status of the satellite communication subscriber terminal of voice traffic transmission after completion of the call is initiated Under press PTT, or using after voice activation, the channel request code of the machine and the machine priority code are passed through into Satellite communication access letter Road is sent, and for exchange control system according to the channel request code and priority code received, controlling satellite transmission channel will be pre- Satellite communication subscriber terminal relevant to this calling first is sent to private network transmission channel code specified by the channel request code; The satellite communication subscriber terminal of voice traffic transmission is initiated after receiving specified private network transmission channel code, the machine uses acousto-optic Prompt channel is it has been established that voice communication information can be sent, and pass by correspondence private network specified by private network transmission channel code Defeated channel sends voice communication information;With the satellite communication subscriber terminal same channel application code with initiation voice traffic transmission Satellite communication subscriber terminal, receive on the correspondence private network transmission channel specified by the private network transmission channel code received and initiate language The voice communication information code that the satellite communication subscriber terminal of sound communications is sent;In the satellite communication for initiating voice traffic transmission After the voice communication information end of transmission of user terminal, exchange control system is controlled after the time is more than the delay time of setting and is released The former specified private network transmission channel occupied is put, so as to the use of other satellite communication subscriber terminals;Exchange control system priority processing The call signaling code and channel request code of high-priority users preferentially use high priority in the busy situation of satellite channel resource Family provides private network transmission channel;Satellite communication subscriber terminal with outer office's communication user completion communication call after connecting, exchange control System processed keeps the communication connection with outer office's communication user by network transport interface, here, the connection between user is not dependent on Satellite digital transmission channel is occupied, exchange control system, which is distributed to, communicates related satellite communication subscriber terminal and outer office with this Communication user channel request code, and specified private network transmission channel code is distributed to the channel request code;Exchange control system storage should The current user information of outer office's communication user and satellite communication subscriber terminal corresponding to channel request code;Exchange control system control The channel request code is sent to satellite communication subscriber terminal relevant to this calling by satellite transmission channel processed;Satellite communication is used Family terminal is sending channel request code and is receiving after exchange control system sends back to private network transmission channel code, occupies the communication channel Satellite digital transmission channel specified by code and the external office's communication user of network transport interface carry out the transmission of voice communication information;Outside For office's communication user when initiating to send the voice communication information of satellite communication subscriber terminal, exchange control system is according to being stored Outer office's communication user corresponding to channel request code to related satellite communication subscriber terminal send the channel request code institute Corresponding private network transmission channel code controls outer office's communication user and is occupied corresponding to private network transmission channel code by network transport interface Satellite transmission channel to related satellite communication subscriber terminal carry out the transmission of voice communication information, related satellite communication subscriber Terminal receives the voice that outer office's communication user is sent on the private network transmission channel specified by the private network transmission channel code received Communication information code;

In above-mentioned communication transmission process: it is that call signaling or voice communication information pass that transport-type code, which indicates this transmission, It is defeated;The method of callings such as the sign calling of type of call code table is individual calling or group is exhaled, grouied busy, noticing, urgent call;Channel request Code is indicated in corresponding communication, levels and the sequence number communicated in systems, carries out voice for the satellite communication subscriber terminal Application uses private network transmission channel when the communication information is transmitted;It is whole that user management control system stores the satellite communication subscriber in user The user information at end includes the authorization, login, service business, priority, affiliated group, user's current working status of the user And the information contents such as current location;

It can be seen that from the above-mentioned course of work since existing satellite digital Transmission system mentions in which can be convenient for all types of user For specifying the data transmission channel of frequency point and transmission bandwidth, therefore the Digital Transmission that the present invention provides satellite digital Transmission system Channel is time-multiplexed, and be ensure that the availability of data transmission channel and is increased operation rate, and the present invention is in processing call signaling And when voice communication, using the judgement to transport-type code, it is classified processing, therefore its identifying processing fast speed; Judgement and processing by exchange control system to type of call code, can provide for user, which has that exhale, group is exhaled, notice etc., dispatches The function of communication;Channel request code is arranged according to calling and user situation in exchange control system, and relevant information is stored in friendship It changes in control system, exchange control system preassigns private network transmission channel to channel request code, transmits in voice communication information In the process, private network transmission channel code is submitted after determining channel request code, and channel request code does not include interminable number According to code, this reduces the transmission to private network transmission channel application code and determines the time, improve channel distribution and connect speed;It defends When being communicated between star communications user terminal and between outer office's communication user, during the transmission of voice communication information Private network transmission channel is occupied, other times are not take up private network transmission channel, when thus reducing the occupancy to satellite transmission channel Between, channel utilization rate is improved, user's usage charges are reduced.

Detailed description of the invention

Fig. 1 is the system construction drawing of one embodiment of the invention;

Fig. 2 is the exchange control system main work flow figure of one embodiment of the invention;

Fig. 3 is the exchange control system call signaling code processing work flow diagram of one embodiment of the invention;

Fig. 4 is the exchange control system channel request code processing work flow diagram of one embodiment of the invention;

Fig. 5 is the satellite communication subscriber terminal works flow chart of one embodiment of the invention.

Specific embodiment

Illustrate the embodiment of the present invention by taking attached drawing as an example below:

Fig. 1 is the system construction drawing of one embodiment of the invention, in which: MS1~MSn is satellite communication subscriber terminal, is used Maritime satellite communications terminal;It (1) is satellite digital Transmission system;(2) be wireless transmission interface, provide to satellite communication system with The connection of this exchange control system, and this exchange control system is also controlled and is distributed to the channel of satellite communication system; It (3) is exchange control system, using programmable user switch system, wherein being stored with system working software and satellite communication use The user information data of family terminal, the user data also include the current user code of the user, priority, affiliated group code, Position code, working condition code etc.;(4) it is network transport interface, provides the user of Incoming to connect for this exchange control system, supply The communication connection of satellite communication subscriber terminal and outer office's communication user;(5) it is other communication system networks, can is fixed-line telephone System network, public mobile communication system net, personal communication system net etc.;S1~Sn is outer office's communication user, can be fixed use Family terminal is also possible to other mobile communication subscriber terminals;

Fig. 2 is the exchange control system main work flow figure of one embodiment of the invention;Wherein:

After exchange control system enters working condition, usually by former conventional program work;Exchange control system controls satellite Digital transmission system the transmission channel of satellite communication subscriber terminal is arranged on different private network transmission channels;If satellite is logical Communication call occurs between credit household's terminal and outer office's communication user, then exchange control system and communication not in the know after access success User keeps communication connection, and calls distribution channel request code to this, and exchange control system controls satellite transmission channel should Channel request code is sent to satellite communication subscriber terminal related to this, and records corresponding to outer office's communication user of this calling Channel request code, to user relevant to calling send response user number;If exchange control system receives transport-type Code, then determine the transport-type code, and in the present embodiment, when transport-type code=0, the follow-up of transmission is calling letter Enable code, when transport-type code ≠ 0, the follow-up of transmission is channel request code;When what the transport-type code received indicated is When call signaling code, program is transferred to Fig. 3 program;When receive transport-type code mark be channel request code when, program turn Enter working method program shown in Fig. 4;

Fig. 3 is the exchange control system call signaling code processing work flow diagram of one embodiment of the invention;Wherein: exchange control System processed determines type of call code entrained by call signaling code, and confirmation is that group exhales, a the callings such as exhale or notice and need Ask, and by the user information of satellite communication subscriber terminal that is called, being stored in exchange control system inquire, according to Type of call code, User Priority situation distribute corresponding channel request code, which is built after levying this calling Vertical level of communication priority and coded sequence, exchange control system store all relevant satellites corresponding to the channel request code The user information of communications user terminal, and control satellite transmission channel send the channel request code to it is relevant to this calling Satellite communication subscriber terminal then by the response user number of the satellite communication subscriber terminal received, then is transmitted by satellite and is believed Road sends all response user numbers to and calls satellite communication subscriber end that is relevant and being transmitted across response user number to this End storage and display, the satellite communication subscriber terminal for participating in this call communication understand all users in this communication;It hands over Control system communication type according to corresponding to channel request code, the channel request code stored, priority level, private network is changed to pass The current user information of defeated channel status, the related satellite communications user terminal user for corresponding to the secondary calling, to each channel Shen It private network please pass corresponding to the specified private network transmission channel being in idle condition of related satellite communications user terminal corresponding to code Defeated channel code is handed over if specified private network transmission channel is occupied in later communication process by other communication user Change the biography of private network corresponding to the private network transmission channel that control system is again in time in idle condition channel request code otherwise allocated Defeated channel code;

Fig. 4 is the exchange control system channel request code processing work flow diagram of one embodiment of the invention;Wherein: working as exchange When control system receives channel request code, communication priority feelings that exchange control system is indicated according to the channel request code The occupancy situation of condition, the priority case of satellite communication subscriber terminal for sending the channel request code, private network transmission channel, in item In the case that part allows, the private network transmission channel code of the private network transmission channel of predesignated distribution is sent to and this secondary channel Shen Please the relevant all satellite communication subscriber terminals of code, for send the channel request code satellite communication subscriber terminal occupy private network pass Private network transmission channel specified by defeated channel code sends voice communication information code, for the satellite communication with same channel application code User terminal occupies private network transmission channel specified by private network transmission channel code and receives voice communication information code;Voice communication information After the end of transmission, after the delay time timing of exchange control system setting is to the time, and it is not received by voice communication information, Then exchange control system removes the satellite transmission channel of former distribution;In the case where private network transmission channel is without the free time, exchange control Communication priority situation that system processed is indicated according to the channel request code, the satellite communication subscriber for sending the channel request code are whole The priority case and private network transmission channel occupancy situation at end, the communication of low priority are interrupted, and the private network is transmitted Channel distribution is used to the user of high priority and channel request code.

Fig. 5 is the satellite communication subscriber terminal works flow chart of one embodiment of the invention;Wherein: when satellite communication subscriber end After the booting of end, work by former conventional program;After satellite communication subscriber terminal initiates the calling to other users, receive simultaneously The response user number of channel request code and called user terminal that display exchange control system is sent, for outer office's communication user Terminal is sent the response user of outer office's communications user terminal by exchange control system after external office's communication user access success Number;According to the response user number, can be confirmed how many user is successfully breathed out in this calling;Satellite communication subscriber terminal When receiving other satellite communication subscriber terminals and calling this satellite communication subscriber terminal, assigned channel request code, right Response user number is submitted in calling;After obtaining channel request code, satellite communication subscriber terminal can carry out voice communication information hair It send and receives;When sending voice communication information, by pressing PTT or voice activation mode, channel request code is sent first;When After receiving the private network transmission channel code that exchange control system is sent, acousto-optic hint is carried out, then passes through the private network transmission channel Correspondence private network transmission channel specified by code sends voice communication information;Exchange control is received in not sent channel request code After the private network transmission channel code that system is sent, received into correspondence private network transmission channel specified by the private network transmission channel code Voice communication information;After voice communication information is sent and is received, specified private network transmission channel is exited;

System structure, numeric data code and making software are set in the manner described above and complete the embodiment of the present invention.

Consider further, since the present invention communicates satellite communication system as independent wireless transmission, therefore the present invention is also It can apply to other telecommunication transmission systems, it is only necessary to private network transmission channel is changed into other communications channels, Application range of the invention can be made more wide in this way.

It is also possible to make exchange control system by the signal intelligence of each user, satellite channel occupancy situation Equal data loggings are simultaneously submitted to charge system, for charging accounting, facilitate operation management.

The invention proposes a kind of private network communication methods based on satellite digital Transmission system, by satellite digital Transmission system The digital channel of offer gives time division multiplexing, and uses setting for transport-type code, type of call code and channel request code Working method is set, transmitted, determined and handled, so that satellite communication subscriber terminal is had the function of dispatching communication, and satellite number can be improved The utilization rate and communication switching speed of word Transmission system reduce user's usage charges, simultaneously, it may have are easy to implement, be easy to use The characteristics of.

Claims (1)

1. a kind of private network communication method based on satellite digital Transmission system includes satellite digital Transmission system, wireless transmission Interface, exchange control system, network transport interface, satellite communication subscriber terminal and outer office's communication user, which is characterized in that described Exchange control system storage the current user information of the satellite communication subscriber terminal in include User Priority code, Group's code;It include type of call code in the call signaling code that the satellite communication subscriber terminal is initiated, type of call code is used In the type for indicating the secondary calling;Channel Shen is provided in the exchange control system and the satellite communication subscriber terminal It please code;It include transport-type code in the transmission information that the satellite communication subscriber terminal is sent, transport-type code is for marking Show the call signaling code and channel request code distinguished in the transmission information;The exchange control system and satellite communication subscriber are whole End executes following private network communication method under the control of the software program:
(1) data transmission channel that satellite digital Transmission system provides is time-multiplexed by exchange control system, and marks off Corresponding private network transmission channel code is arranged in multiple private network transmission channels;
(2) exchange control system control satellite digital Transmission system is by instruction transmission, by each satellite communication subscriber terminal Transmission channel scattering device is on each different private network transmission channel;
(3) the transport-type code in the transmission information that exchange control system sends the satellite communication subscriber terminal received carries out Determine, confirms as call signaling code or channel request code, and carry out following corresponding treatment processes;
Exchange control system is whole according to the satellite communication subscriber of call signaling code and user management the control system storage received The user information at end is analyzed and processed, and is distributed to this time and is called corresponding channel request code, and stores the channel request code institute The current user information of corresponding communication type, priority level, related satellite communications user terminal, exchange control system control are defended The channel request code is sent to satellite communication subscriber terminal relevant to this calling by star transmission channel, receives channel request code Satellite communication subscriber terminal send response user code, exchange control system is according to the response user code received, control satellite All response user codes are sent to satellite communication subscriber terminal storage relevant to this calling and display by transmission channel;It hands over Control system communication type according to corresponding to channel request code, the channel request code stored, priority level, private network is changed to pass The current user information of defeated channel status, the related satellite communications user terminal for corresponding to the secondary calling, to each channel request code Private network transmission letter corresponding to the specified private network transmission channel being in idle condition of corresponding related satellite communications user terminal Road code;
(4) the satellite communication subscriber terminal of voice traffic transmission is initiated by the current channel request code of the machine and the machine priority code Sent by Satellite communication access channel, exchange control system according to receive channel request code, priority code control Specified correspondence private network transmission channel code is sent to satellite communication subscriber terminal relevant to this calling by private network transmission channel; The satellite communication subscriber terminal of voice traffic transmission is initiated after receiving specified private network transmission channel code, is transmitted by private network Private network transmission channel specified by channel code sends voice communication information;It is used with the satellite communication with initiation voice traffic transmission The satellite communication subscriber terminal of family terminal same channel application code, the transmission of the private network specified by the private network transmission channel code received The voice communication information code that satellite communication subscriber terminal is sent is received on channel;In the voice communication of satellite communication subscriber terminal After the information end of transmission, exchange control system former specified private network occupied of control release after the time is more than the delay time of setting Transmission channel;Exchange control system is preferably that the call signaling code of high-priority users and channel request code provide private network transmission letter Road;
(5) for satellite communication subscriber terminal after connecting with outer office's communication user completion communication call, exchange control system passes through net Network coffret keeps the communication connection with outer office's communication user, and distributes to and communicate related satellite communication subscriber end with this End and outer office's communication user channel request code, and specified private network transmission channel code is distributed to the channel request code;Exchange control system System stores outer office's communication user corresponding to the channel request code and the current user information of satellite communication subscriber terminal;Exchange control The channel request code is sent to satellite communication subscriber terminal relevant to this calling by system control satellite transmission channel processed;It defends Star communications user terminal is sending channel request code and is receiving after exchange control system sends back to private network transmission channel code, and occupying should The external office's communication user of satellite digital transmission channel and network transport interface specified by communication channel code carries out voice communication letter Breath transmission;Outer office's communication user is when initiating the voice communication information transmission to satellite communication subscriber terminal, exchange control system The letter is sent to related satellite communication subscriber terminal according to channel request code corresponding to the outer office's communication user stored Private network transmission channel code corresponding to road application code controls outer office's communication user by network transport interface and occupies private network transmission letter Satellite transmission channel corresponding to road code carries out the transmission of voice communication information to related satellite communication subscriber terminal, related to defend Star communications user terminal receives outer office's communication user hair on the private network transmission channel specified by the private network transmission channel code received The voice communication information code sent.
CN201610716730.0A 2016-08-25 2016-08-25 Private network communication method based on satellite digital Transmission system CN106301531B (en)

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CN101127676A (en) * 2007-07-06 2008-02-20 清华大学 Network access and control method based on satellite multicast and backhaul channel sharing
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