CN103079171A - Acentric command and dispatch communication system and call processing method thereof - Google Patents
Acentric command and dispatch communication system and call processing method thereof Download PDFInfo
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- CN103079171A CN103079171A CN201210580391XA CN201210580391A CN103079171A CN 103079171 A CN103079171 A CN 103079171A CN 201210580391X A CN201210580391X A CN 201210580391XA CN 201210580391 A CN201210580391 A CN 201210580391A CN 103079171 A CN103079171 A CN 103079171A
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Abstract
The invention discloses an acentric command and dispatch communication system and a call processing method thereof. A software framework of the acentric command and dispatch communication system comprises a plurality of terminal nodes, wherein the terminal nodes comprise a PS (Poly Styrene) module, a UAC (User Account Control) module and a UAS (User Agent Server) module, wherein the PS module communicates with the UAC module and the UAS module by virtue of an SIP (Session Initiation Protocol); the terminal nodes communicates with one another by virtue of the PS module; the PS module internally maintains the state of the local terminal node; one side of the PS module and the UAC module form a calling unit; and the other side of the PS module and the UAS module form a called unit. The acentric system disclosed by the invention is a communication system without any center node, only the terminal nodes exist in a network, and center network element functions of a traditional network are distributed into each terminal node, so that the network reliability is high, no single point failure exists, and the fault of any network node cannot be diffused to the whole network.
Description
Technical field
The inventive method belongs to the communications field, be specifically related to a kind of based on Session Initiation Protocol without center command dispatching and communication system and call processing method thereof.
Background technology
There is some centers network element in legacy communications system for the center infrastructure system is arranged in the network, the function of system and business all are to come control and management by the center network element.
Legacy communications system comprises following four levels:
(1) value-added service layer
Value-added telecom services are provided, are formed by various servers, such as server of color ring back tone service, prepayment service server etc.
The center is arranged: various servers are the service center node, have Single Point of Faliure, and the fault of any server all can cause corresponding service disconnection.
(2) communication layers
Comprise the telecommunication apparatus such as base station (BS), mobile switching centre (MSC), location register (LR), gateway (GW).
The center is arranged: the various communications infrastructures are network center's point, have Single Point of Faliure, and any center network element failure, network are about to face part even overall situation paralysis.
(3) transport layer
If the network group-based, then transport layer comprises various Ethernet switches and router; If network is based on circuit, then transport layer comprises the transmission equipments such as SDH, WDWM.
The center is arranged: various transmission equipments are network center, have Single Point of Faliure, and the fault of any transmission equipment all can cause the local even overall situation paralysis of network.
(4) terminating layer
Various handheld terminals and vehicle-mounted terminal equipment.
Without the center: number of interruptions is huge, is distributed in network edge, and without Single Point of Faliure, any terminal breaks down, and only has influence on this user self, on the whole network without any impact.
Be communication system without any Centroid without centring system, only have terminal node in the network, the central network meta function in the legacy network is distributed in each terminal node.Such network reliability is high, does not have Single Point of Faliure, and the fault of any network node can not be diffused into the whole network.
Owing to do not have the center network element in the network, the call processing method in the legacy communications system just no longer is applicable to without centring system, must adopt new call model to exchange control.
Summary of the invention
The above problem that exists in order to overcome prior art the invention provides a kind of call processing method that is applied to without the center command dispatching and communication system.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of without the center command dispatching and communication system, comprise several terminal nodes, comprise PS module, UAC module and UAS module in the described terminal node, described PS module is by Session Initiation Protocol and described UAC module and described UAS module communication, intercom mutually by described PS module between described several terminal nodes, described PS inside modules is safeguarded the state of local described terminal node; One side of described PS module and described UAC module composition caller unit, the opposite side of described PS module and the called unit of described UAS module composition.
A kind of call processing method without the center command dispatching and communication system comprises that node registration flow process, Point-to-point voice call flow process, point-to-multipoint group call flow process and PTT right of speech seize flow process;
Described node registration flow process, may further comprise the steps: described PS module sends REGISTER message to described terminal node to this locality every certain cycle, after the complete described REGISTER message of local described PS resume module, to the whole network broadcasting REGISTER message, so that the described terminal node of each of the whole network is known the positional information of all other described terminal nodes in the network;
Described Point-to-point voice call flow process, may further comprise the steps: described UAC module is behind the PS module transmission INVITE of described caller unit, the PS module of described caller unit extracts called number UID, then according to certain algorithm, retrieve the address of purpose PS module server corresponding to described UID, and sending described INVITE to the PS module of the described callee side unit of this address, the PS module of described called unit can be forwarded to described INVITE described UAS module;
Described point-to-multipoint group call flow process, may further comprise the steps: described UAC module is behind the PS module transmission INVITE of described caller unit, the PS module of described caller unit sends described INVITE to the PS module of the described called unit of purpose terminal node, the PS module of described called unit can be forwarded to described INVITE described UAS module, after each terminal node is received described INVITE, judge whether to respond this message according to wherein purpose GroupID;
100Trying message is point-to-point affirmation, and is optional;
The purpose of 200OK message is that the caller statistics has the called subscriber has received this message in how many groups, namely has how many users can answer speech, and is optional;
ACK message is optional;
In the business: in the PTT conversation, also may be the PTT resting state not necessarily, but group calling this moment relation/event still exists in system;
BYE is used for taking out stitches of group calling;
Described PTT right of speech is seized flow process, may further comprise the steps: described UAC module is behind the PS module transmission expansion sip message PTT-INVITE of described caller unit, and the PS module of described caller unit sends described PTT-INVITE message to the PS module of the described called unit of purpose terminal node;
100Trying is used for confirming, and is optional;
200OK is used for statistics, and is optional;
PTT discharges and adopts expansion sip message PTT-BYE, and to distinguish common BYE message, broadcast/group broadcast sends;
PTT-BYE only is used for discharging current PTT and calls out, but the still existence in system of group calling this moment relation/event, just group calling is in resting state.
Further, the described cycle in the described node registration flow process is 10 minutes.
Further, the described INVITE in the described point-to-multipoint group call flow process is broadcasting or multicast message.
Further, the described expansion sip message PTT-INVITE that seizes in the flow process of described PTT right of speech sends with broadcasting or multicast mode.
The invention has the beneficial effects as follows:
Of the present invention is communication system without any Centroid without centring system, only has terminal node in the network, and the central network meta function in the legacy network is distributed in each terminal node.Such network reliability is high, does not have Single Point of Faliure, and the fault of any network node can not be diffused into the whole network.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and cooperate accompanying drawing to be described in detail as follows.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is software architecture schematic diagram of the present invention;
Fig. 2 is node registration flow chart of the present invention;
Fig. 3 is Point-to-point voice call flow chart of the present invention;
Fig. 4 is point-to-multipoint group call flow chart of the present invention;
Fig. 5 is that PTT right of speech of the present invention is seized flow chart.
Number in the figure explanation: 1, terminal node, 2, the PS module, 3, the UAC module, 4, the UAS module.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Referring to shown in Figure 1, a kind of without the center command dispatching and communication system, comprise several terminal nodes 1, comprise PS module 2, UAC module 3 and UAS module 4 in the described terminal node 1, described PS module 2 is communicated by letter with described UAS module 4 with described UAC module 3 by Session Initiation Protocol, intercom mutually the state of the local described terminal node 1 of described PS module 2 internal maintenances between described several terminal nodes 1 by described PS module 2; One side of described PS module 2 and described UAC module 3 consist of the caller unit, and the opposite side of described PS module 2 and described UAS module 4 consist of called unit.
A kind of call processing method without the center command dispatching and communication system comprises that node registration flow process, Point-to-point voice call flow process, point-to-multipoint group call flow process and PTT right of speech seize flow process.
This programme can also make the sip terminal of the external standard of each terminal node, and this moment, the PS module also will be finished the addressing of all the external sip terminals in this terminal node.
Such decomposition module design makes the software architecture of whole system more flexible, and different modules can be closed and be established, and also can set up separately.Three modules are closed and are located at together, can be used as the terminal node without centring system; If described PS module is separated, then can be used as the sip server of centring system.
Such design also can compatibility standard the sip terminal access without centring system, the PS module that this moment, external sip terminal only need be linked into a certain terminal node gets final product.
Referring to shown in Figure 2, described node registration flow process, may further comprise the steps: described PS module sends REGISTER message to described terminal node to this locality every certain cycle (for example 10 minutes), after the complete described REGISTER message of local described PS resume module, to the whole network broadcasting REGISTER message, so that the described terminal node of each of the whole network is known the positional information of all other described terminal nodes in the network.
Referring to described Point-to-point voice call flow process shown in Figure 3, may further comprise the steps: described UAC module is behind the PS module transmission INVITE of described caller unit, the PS module of described caller unit extracts called number UID, then according to certain algorithm, retrieve the address of purpose PS module server corresponding to described UID, and sending described INVITE to the PS module of the described callee side unit of this address, the PS module of described called unit can be forwarded to described INVITE described UAS module.
Referring to described point-to-multipoint group call flow process shown in Figure 4, may further comprise the steps: described UAC module is behind the PS module transmission INVITE (described INVITE is broadcasting or multicast message) of described caller unit, the PS module of described caller unit sends described INVITE to the PS module of the described called unit of purpose terminal node, the PS module of described called unit can be forwarded to described INVITE described UAS module, after each terminal node is received described INVITE, judge whether to respond this message according to wherein purpose GroupID;
100Trying message is point-to-point affirmation, and is optional;
The purpose of 200OK message is that the caller statistics has the called subscriber has received this message in how many groups, namely has how many users can answer speech, and is optional;
ACK message is optional;
In the business: in the PTT conversation, also may be the PTT resting state not necessarily, but group calling this moment relation/event still exists in system;
BYE is used for taking out stitches of group calling.
Referring to Fig. 5, shown in described PTT right of speech seize flow process, may further comprise the steps: described UAC module is behind the PS module transmission expansion sip message PTT-INVITE (described expansion sip message PTT-INVITE sends with broadcasting or multicast mode) of described caller unit, and the PS module of described caller unit sends described PTT-INVITE message to the PS module of the described called unit of purpose terminal node;
100Trying is used for confirming, and is optional;
200OK is used for statistics, and is optional;
PTT discharges and adopts expansion sip message PTT-BYE, and to distinguish common BYE message, broadcast/group broadcast sends;
PTT-BYE only is used for discharging current PTT and calls out, but the still existence in system of group calling this moment relation/event, just group calling is in resting state.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. one kind without the center command dispatching and communication system, it is characterized in that: comprise several terminal nodes (1), comprise PS module (2), UAC module (3) and UAS module (4) in the described terminal node (1), described PS module (2) is communicated by letter with described UAS module (4) with described UAC module (3) by Session Initiation Protocol, intercom mutually the state of the local described terminal node of described PS module (2) internal maintenance (1) between described several terminal nodes (1) by described PS module (2); One side of described PS module (2) and described UAC module (3) consist of the caller unit, and the opposite side of described PS module (2) and described UAS module (4) consist of called unit.
2. call processing method without the center command dispatching and communication system is characterized in that: comprise that node registration flow process, Point-to-point voice call flow process, point-to-multipoint group call flow process and PTT right of speech seize flow process;
Described node registration flow process, may further comprise the steps: described PS module sends REGISTER message to described terminal node to this locality every certain cycle, after the complete described REGISTER message of local described PS resume module, to the whole network broadcasting REGISTER message, so that the described terminal node of each of the whole network is known the positional information of all other described terminal nodes in the network;
Described Point-to-point voice call flow process, may further comprise the steps: described UAC module is behind the PS module transmission INVITE of described caller unit, the PS module of described caller unit extracts called number UID, then according to certain algorithm, retrieve the address of purpose PS module server corresponding to described UID, and sending described INVITE to the PS module of the described callee side unit of this address, the PS module of described called unit can be forwarded to described INVITE described UAS module;
Described point-to-multipoint group call flow process, may further comprise the steps: described UAC module is behind the PS module transmission INVITE of described caller unit, the PS module of described caller unit sends described INVITE to the PS module of the described called unit of purpose terminal node, the PS module of described called unit can be forwarded to described INVITE described UAS module, after each terminal node is received described INVITE, judge whether to respond this message according to wherein purpose GroupID;
Described PTT right of speech is seized flow process, may further comprise the steps: described UAC module is behind the PS module transmission expansion sip message PTT-INVITE of described caller unit, and the PS module of described caller unit sends described PTT-INVITE message to the PS module of the described called unit of purpose terminal node.
3. the call processing method without the center command dispatching and communication system according to claim 2 is characterized in that: the described cycle in the described node registration flow process is 10 minutes.
4. the call processing method without the center command dispatching and communication system according to claim 2 is characterized in that: the described INVITE in the described point-to-multipoint group call flow process is broadcasting or multicast message.
5. the call processing method without the center command dispatching and communication system according to claim 2 is characterized in that: the described expansion sip message PTT-INVITE that described PTT right of speech is seized in the flow process sends with broadcasting or multicast mode.
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Cited By (1)
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| TWI565290B (en) * | 2014-03-28 | 2017-01-01 | 鴻海精密工業股份有限公司 | Apparatus for communicating with network phone and the method thereby |
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Application publication date: 20130501 Assignee: Nanjing Vico Communication Co. Ltd. Assignor: Hou Rongtao Contract record no.: 2018320000150 Denomination of invention: Acentric command and dispatch communication system and call processing method thereof Granted publication date: 20171201 License type: Exclusive License Record date: 20180905 |