CN103024686B - Method for realizing cross-system intercommunication of different call groups among trunked communication systems - Google Patents
Method for realizing cross-system intercommunication of different call groups among trunked communication systems Download PDFInfo
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- CN103024686B CN103024686B CN201210591618.0A CN201210591618A CN103024686B CN 103024686 B CN103024686 B CN 103024686B CN 201210591618 A CN201210591618 A CN 201210591618A CN 103024686 B CN103024686 B CN 103024686B
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Abstract
The invention provides a method for realizing cross-system intercommunication of different call groups among trunked communication systems. The method includes that a group intercommunication gateway is set up among the trunked communication systems, communicates with each trunked communication system through interlink interfaces, configures and maintains a list of group correlation numbers, each group correlation number correlates with a plurality of call groups needing intercommunication and belonging to different trunked communication systems, each trunked communication system maintains a record of corresponding relationship between a call group number that the trunked communication system belongs to and a group correlation number, and group calling of cross-system intercommunication takes the group intercommunication gateway as a call control center. By the method, cross-system intercommunication group calling of different call groups can be realized without collision of voice sending authorization and mistakenly displaying of speaking parties, and group calling failure caused by various abnormal conditions can be avoided.
Description
Technical field
The invention belongs to trunking communicating technology field, relate generally to different phone group between a kind of trunked communication system and carry out the implementation method of cross-system intercommunication.
Background technology
Trunked communication system belongs to professional mobile communication, and be the radio dispatch control communication system of a kind of shared resource, contribution, shared channel equipment and service, it represents the Private Mobile Communication Network developing direction of one of communication system.The maximum feature of trunked communication system is that Speech Communication adopts PTT(Push To Talk) button form, the mode pushed to talk by continues channel, and continue speed, and can support group calling (Group Call).
Group calling is most important dispatching services and command means in trunked communication system, be characterized in getting ready to go into action in hundreds, namely when the PTT key that a side presses terminal equipment carries out audio call, other each users being organized in same phone group with it receive this audio call simultaneously, form the communication pattern of one-to-many.If the multiple user of same phone group presses PTT key simultaneously, judge which user has the right to send speech by system, and other all same group users can only receive speech.That is, in group-calling process, carried out the control of transmission route by system.
In the practice of trunking communication; often can run into the situation that cross-system carries out group calling; namely certain phone group in a trunked communication system participates in same group calling with another phone group of another trunked communication system jointly, and this just requires the implementation method that there is the cross-system intercommunication of different phone groups between trunked communication system.
In current cluster communication, generally realized the intercommunication of different phone group between system by ride, as shown in Figure 1.First trunked communication system 11 is made up of system equipment 1100 and travelling carriage 1101, is communicated between travelling carriage with system equipment by air interface, and wherein several travelling carriages 1101 are organized in same X phone group 111; Second trunked communication system 12 is made up of system equipment 1200 and travelling carriage 1201, is communicated between travelling carriage with system equipment by air interface, and wherein several travelling carriages 1201 are organized in same Y phone group 121.When X phone group and Y phone group need intercommunication, select a ride 1202, be organized in the Y phone group of second trunked communication system 12, this ride is connected with the system equipment 1100 of first trunked communication system 11 in wired mode again simultaneously.Like this, when X phone group has travelling carriage to press PTT key, in first system, system equipment 1100 is by this signal transmission to ride 1202, makes it in second system Y phone group, to send corresponding PTT signal by air interface, and transmit voice signal in process subsequently; Equally, when Y phone group has travelling carriage to press PTT key, interface receives the ride 1202 that system equipment 1200 notifies aloft, by wired mode, notice is delivered to system equipment 1100 in first system, then this notice can send to all travelling carriages in X phone group, and in subsequent process, voice signal is also such transfer mode.By the transmission of ride, X phone group is just with Y phone group intercommunication.
But there is several defect in this method.First be to solve the conflict of PTT button.When X phone group user and Y phone group user press PTT key simultaneously, because first system and second system authorize the user of native system to talk separately, cause the user of X phone group to listen authorized user speech in first system, the user of Y phone group listens authorized user speech in second system.In this case, intercommunication is not set up.
Next is the mark that correctly can not show speaker, when X phone group user presses the speech of PTT key, the speaker number of the user's display in Y phone group be ride at the intrasystem number of second, instead of the number of actual spoken user.
In addition, in TETRA ISI standard, refer to a kind of group connection business, can be used for the intercommunication of different phone group between system.By group connection, several different group is bound up, and specifies one of them group as control group, thus forms intercommunication.Although group connection business can solve the problem of the conflict of PTT button and speaker number display mistake, but require that the system of intercommunication is all the trunked communication system of TETRA standard, its operation flow is complicated, easily make mistakes, and lack the abnormality processing flow process after makeing mistakes, be also difficult in actual applications promote.
Summary of the invention
Technical problem to be solved by this invention is for possessing interconnecting interface, can realizing multiple trunked communication systems of the network interconnection, a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system is provided, can initiates in each phone group adhering to different trunked communication system separately and safeguard same group calling.For this reason, the present invention is by the following technical solutions:
It sets up one to organize Interworking gateway between each trunked communication system, group Interworking gateway is communicated with each trunked communication system by interconnecting interface, group Interworking gateway configures and safeguards that a group closes the list of chain store, and each group closes chain store and associate several phone groups belonging to different trunked communication system needing intercommunication; Each trunked communication system safeguards that phone group's group number belonging to native system and group close the record of corresponding relation between chain store; The group calling of cross-system intercommunication is by organizing Interworking gateway as Call-Control1 center;
Described method comprises following process:
(1) when group calling is initiated, first checked that this phone group's group number closes the corresponding relation record of chain store with group by the trunked communication system of exhaling belonging to phone group, judge whether this group calling belongs to the group calling of cross-system intercommunication, if so, then the group calling request of setting up is sent to group Interworking gateway;
(2), after group Interworking gateway receives group calling foundation request, inspection group closes chain store and also determines to organize the different trunked communication systems each phone group belonging to of pass associated by chain store, sends group calling foundation instruction to these trunked communication systems;
(3) after each trunked communication system receives the group calling foundation instruction from group Interworking gateway, check whether close corresponding relation record between chain store with native system phone group group number with group conforms to, if so, then accept group calling and set up instruction, add the group calling of this cross-system intercommunication.Described interconnecting interface, is that each trunked communication system follows same interconnect standard, can carries out the intersystem interface of signaling and phonetic data.
The Call-Control1 center of described group calling, in group-calling process, judges and authorizes certain user to have speech transmission route, and other users be in same group calling only have speech reception power; Send when former transmission user completes speech, after release PTT key, if other multiple users press PTT key, Call-Control1 center continue to judge and authorize press PTT key user one of them possess speech transmission route, other users only have speech reception to weigh.
Further technical scheme is, if group calling is initiated by group roamer in process (1), the group calling request of setting up is sent to group Home System by place group roaming system; Group Home System receives after group calling sets up request, checks that whether the group number of this phone group is organized with certain and closes chain store and there is corresponding relation; If corresponding relation exists, group Home System sends group calling transinformation to the group roaming system of initiating group calling foundation request, and information comprises phone group's group number and closes chain store with corresponding group; Group after roaming system receives group calling transinformation, again sends group calling to group Interworking gateway and sets up request, then proceed process (1), 2), the cross-system intercommunication group calling of (3).
Described roaming, it is a proper noun in mobile communication system, refer to the user belonging to certain mobile communication system, leave the signal coverage of the mobile communication system belonging to itself, enter into the signal coverage of another mobile communication system, because two mobile communication system can be interconnected, therefore this user also can register and enjoy mobile communication business in new mobile communication system.This user is called roamer; During roaming, the mobile communication system of business that temporarily provides at its place is called roaming system; Mobile communication system belonging to itself is called Home System.
Trunked communication system is also a kind of mobile communication system, therefore has same " user's roaming " definition.Outside " user's roaming ", trunked communication system also has " group roaming " proprietary definition.Group roaming refers to that the user of certain phone group have left the ownership trunked communication system of this phone group, enters another trunked communication system, and this user is called " group roamer ".Accordingly, when group roaming occurs, another trunked communication system at phone group's ownership trunked communication system and group roamer place, is called " group Home System " and " group roaming system ".
Further technical scheme is, described method also comprises following process:
Whether, after specifying the interoperation relationships of phone group to set up, each trunked communication system periodically sends intercommunication and verifies message to group Interworking gateway, still exist to verify the interoperation relationships of specifying phone group; Group Interworking gateway is after receiving intercommunication verification message, check that associating between chain store is closed with group in this phone group, and check result is replied to trunked communication system, do not existed if result is association, trunked communication system is deleted this phone group's group number and is organized the corresponding relation record closed between chain store.
Further technical scheme is, process (1) starts timer after the group calling request of setting up being sent to group Interworking gateway by the trunked communication system of exhaling belonging to phone group at once; If timer expiry and the response that do not obtain from group Interworking gateway, then this trunked communication system sets up group calling in native system, no longer performs the process of cross-system intercommunication group calling set up.
Further technical scheme is, if timer expiry and do not obtain from group Interworking gateway response, then exhaled this trunked communication system belonging to phone group to set up group calling in native system, no longer perform the process setting up cross-system intercommunication group calling, and perform following process at once:
Whether each trunked communication system sends intercommunication and verifies message to group Interworking gateway, still exist to verify the interoperation relationships of specifying phone group; Group Interworking gateway is after receiving intercommunication verification message, check that associating between chain store is closed with group in this phone group, and check result is replied to trunked communication system, do not existed if result is association, trunked communication system is deleted this phone group's group number and is organized the corresponding relation record closed between chain store.
Further technical scheme is, when having phone group will exit intercommunication, the trunked communication system belonging to this phone group sends intercommunication exit message to group Interworking gateway, and the group that this intercommunication exit message comprises phone group and the correspondence of specifying closes chain store; After group Interworking gateway receives this intercommunication exit message, this phone group is closed the association of chain store from group and deletes.
Further technical scheme is, when certain interoperation relationships set up between specific some phone groups will be removed completely, group Interworking gateway sends intercommunication to each trunked communication system and removes message, this intercommunication is removed message and is comprised the phone group's group number adhering to each trunked communication system separately that the group of specifying closes chain store and association thereof, requires that releasing group closes associating of chain store and these phone groups; Each trunked communication system receives this intercommunication and removes after message, is deleted by the corresponding relation record that the phone group's group number belonging to self and this group are closed between chain store.
On the basis of aforementioned schemes, further technical scheme is that after trunked communication system sends intercommunication verification message to group Interworking gateway, receive the reply of group Interworking gateway if fail, trunked communication system can be retransmitted intercommunication and verify message; All fail to be replied if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number to close the corresponding relation of chain store with group.
On the basis of aforementioned schemes, further technical scheme is, after trunked communication system sends intercommunication exit message to group Interworking gateway, receive the reply of group Interworking gateway if fail, trunked communication system can retransmit intercommunication exit message; All fail to be replied if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number to close the corresponding relation of chain store with group.
On the basis of aforementioned schemes, further technical scheme is, group Interworking gateway receives the reply of certain trunked communication system after sending intercommunication releasing message to each trunked communication system if fail, group Interworking gateway can be retransmitted intercommunication to this trunked communication system and remove message; All fail to be replied if repeatedly retransmit, group Interworking gateway can be deleted designated groups voluntarily and close chain store, no longer safeguards that this group closes the original phone group's interoperation relationships of chain store.
Adopt technical scheme of the present invention, when realizing the intercommunication group calling of different phone groups cross-system, be equivalent to have constructed a larger virtual system on these trunked communication systems, group Interworking gateway plays a role as the Call-Control1 center of virtual system; Group pass chain store is new phone group's group number, and this new phone group includes all users adhered to separately in each phone group of different trunked communication system of its association.
Therefore, adopt implementation method of the present invention, the intercommunication group calling of different phone groups cross-system can be realized.As long as possess interconnecting interface between these trunked communication systems, do not need these trunked communication systems to adopt specific trunking communication standard, do not need to adopt unified trunking communication standard yet.And, because this intercommunication group calling possesses unique Call-Control1 center, therefore there will not be speech to send the conflict of authorizing, there will not be the mistake that speaker number shows.
On this basis, due to consider in technical scheme of the present invention intercommunication maintenance, exit, method of operation under the different situations such as releasing, the group calling making the program can avoid causing due to various abnormal conditions failure.
Accompanying drawing explanation
Fig. 1 is the group interoperability methods schematic diagram under prior art.
Fig. 2 is that the group in the present invention program closes chain store configuration flow.
Fig. 3 is the group calling start flow in the present invention program under group intercommunication condition.
Fig. 4 is that flow process is verified in the group intercommunication in the present invention program.
Fig. 5 is that flow process is exited in the group intercommunication in the present invention program.
Fig. 6 is that flow process is removed in the group intercommunication in the present invention program.
Fig. 7 organizes roamer under the group intercommunication condition in the present invention program to initiate group calling flow process.
Embodiment
In order to fully understand technology contents of the present invention, providing specific embodiment below, by reference to the accompanying drawings comparatively detailed introduction and explanation being carried out to technical scheme of the present invention.
In the present embodiment, there are A, B, C, D tetra-trunked communication systems, undertaken interconnected by interconnecting interface each other.Wherein A system A1 phone group, B system B3 phone group, C system C1 phone group, d system D4 phone group need intercommunication; B system B1 phone group, C system C3 phone group, d system D2 phone group need intercommunication; B system B2 phone group, C system C2 phone group, d system D1 phone group need intercommunication; A system A2 phone group, d system D3 phone group need intercommunication.Between these four trunked communication systems, set up one to organize Interworking gateway, group Interworking gateway is communicated with each trunked communication system by interconnecting interface for this reason.
As shown in Figure 2, the configuration organizing intercommunication is first carried out.
Each trunked communication system configuration needs the phone group 201 of intercommunication.A, B, C, D four systems all gives record aforementioned each phone group's information of intercommunication that needs.
Group Interworking gateway configuration group closes chain store, is associated with same group closes chain store 202 by needing each phone group of intercommunication.In the present embodiment, A1, B3, C1, D4 are associated with group and close in chain store AG1, and B1, C3, D2 are associated with group and close in chain store AG2, and B2, C2, D1 are associated with group and close in chain store AG3, and A2, D3 are associated with group and close in chain store AG4.
Due to certain fault, group Interworking gateway has also been associated with the A2 phone group of A trunked communication system in AG2 mistakenly.
Group Interworking gateway closes chain store according to group, to the system transmission group intercommunication request 203 belonging to each phone group associated by same group of pass chain store.In the present embodiment, close chain store AG2 to configure group, group Interworking gateway needs to A, B, C, D four systems transmission group intercommunication request message.Group intercommunication request message comprises following parameter: MCC, MNC and GSSI of A2; MCC, MNC and GSSI of B1; MCC, MNC and GSSI of C3; MCC, MNC and GSSI of D2; The GSSI of AG2.Wherein MCC and MNC represents national code and the network code of this phone group's said system respectively, and GSSI represents sets of numbers.
Trunked communication system compares the group intercommunication request message that receives and originally configured whether consistent 204.In the present embodiment, A trunked communication system receives the group intercommunication request message of AG2, require A2, B1, C3, D2 to be associated with in AG2, inconsistent with recording of A trunked communication system, therefore A trunked communication system replys intercommunication configure-reject response 205 to group Interworking gateway.
Mistake is found in group Interworking gateway inspection configuration, leaves out A2, thus maintain the correctness 206 of AG2 in the association of AG2.After righting a wrong, group Interworking gateway is again again to B, C, d system transmission group intercommunication request message 203.
B trunked communication system receives the group intercommunication request message of AG2, B1, C3, D2 is required to be associated with in AG2, consistent with the record of B trunked communication system, corresponding relation between the GSSI of therefore GSSI and AG2 of B trunked communication system record B1, and reply intercommunication configuration successful response 207 to group Interworking gateway.
The inspection of C, D trunked communication system, record, reply group intercommunication request about AG2, method is similar, repeats no more.
The group intercommunication configuration of 208, AG2 just success 209 after the intercommunication configuration successful response of B, C, D trunked communication system belonging to B1, C3, D2 that group Interworking gateway receives AG2 association.
The group intercommunication layoutprocedure of AG1, AG3, AG4 roughly the same, repeats no more.
As shown in Figure 3, after completing group intercommunication configuration, the intercommunication group calling of cross-system can be carried out.
In the present embodiment, certain user in D trunked communication system presses PTT key, and group calling 301 is initiated in application.That is, this user have issued group calling to D trunked communication system and sets up request.
After D trunked communication system receives group calling foundation request, the record of first inspection group's intercommunication configuration, checks whether phone group belonging to this user has corresponding group to close chain store 302.
If this user's call conversation group D5, do not have corresponding group to close chain store, so set up normal D5 phone group group calling 303 in D trunked communication system.
If this user's call conversation group D2, systems inspection record finds that there is corresponding group closes chain store AG2, then belong to the intercommunication group calling of cross-system, D trunked communication system sends group calling to group Interworking gateway and sets up request, the GSSI that request message comprises GSSI, AG2 of D2 is set up in group calling, and starts timer 304.
If timer expiry, D trunked communication system fails to receive the message 305 from group Interworking gateway, then D trunked communication system sets up the group calling 303 of D2 phone group in native system, no longer performs the foundation of intercommunication group calling.
Group Interworking gateway checks whether AG2 exists 306 after receiving group calling foundation request.
If AG2 does not exist, so organize Interworking gateway and reply refusal response 307, a D trunked communication system to D trunked communication system and set up D2 phone group group calling 303 in native system voluntarily.
In the present embodiment, group Interworking gateway inspection finds that AG2 exists, association be B1, C3, D2 phone group, therefore send group calling to B, C, D tri-trunked communication systems and set up instruction 308.Group calling is set up in Indication message and is comprised following parameter: MCC, MNC and GSSI of B1; MCC, MNC and GSSI of C3; MCC, MNC and GSSI of D2; The GSSI of AG2.
Whether the corresponding relation of each trunked communication system inspection call group number and group pass chain store meets the record 309 of oneself.
If the C3 phone group of C trunked communication system has exited AG2 in previous, corresponding relation between the GSSI just not having GSSI and the AG2 of C3 in the record of so C trunked communication system, C trunked communication system replys a refusal response to group Interworking gateway, does not participate in this group calling 310.
In the present embodiment, the C3 phone group of C trunked communication system is also in the association of AG2, C trunked communication system has examined the corresponding relation between the GSSI of GSSI and the AG2 of C3, and therefore C trunked communication system accepts group calling and sets up instruction, and C3 phone group adds this group calling 311.
B1, D2 phone group adds the process of this group calling roughly the same, repeats no more.
The group calling comprising all users in B1, C3, D2 tri-phone groups is set up, and what group Interworking gateway grasped speech transmission route as group calling control centre authorizes 312.
Figure 7 shows that group roamer initiates the intercommunication group calling of cross-system.
In the present embodiment, the group roamer being positioned at A trunked communication system presses PTT key, and group calling 701 is initiated in application.That is, this group roamer have issued group calling to the D trunked communication system of phone group's ownership and sets up request in A trunked communication system.
The group calling request of setting up is sent to D trunked communication system 702 by A trunked communication system.
After D trunked communication system receives group calling foundation request, whether the record of first inspection group's intercommunication configuration, check and exhaled phone group to have corresponding group to close chain store 703.
If this user's call conversation group D5, do not have corresponding group to close chain store, so set up normal D5 phone group group calling 704 in D trunked communication system.
If this user's call conversation group D2, systems inspection record finds that there is corresponding group closes chain store AG2, then belong to the intercommunication group calling of cross-system, D trunked communication system sends group calling Transfer Message to A trunked communication system, group calling Transfer Message comprises the GSSI of GSSI, AG2 of D2, and starts timer 705.
A trunked communication system again sends group calling to group Interworking gateway and sets up request, and the GSSI 706 that request message comprises GSSI, AG2 of D2 is set up in group calling.The benefit setting up group calling is asked to be that, once group calling is set up, this group roamer as group call initiator obtains speech transmission route at once, can save the connecting time of group calling by group roaming system.
If timer expiry, message 707 is set up in the group calling that D trunked communication system fails to receive from group Interworking gateway, then D trunked communication system notice A trunked communication system cancels intercommunication group calling 708, changes the group calling 704 of setting up D2 phone group in D trunked communication system into.
Group Interworking gateway checks whether AG2 exists 709 after receiving group calling foundation request.
If AG2 does not exist, so group Interworking gateway replys the D2 phone group group calling 704 in the D trunked communication system of refusal response 710, A trunked communication system notice D trunked communication system foundation group roamer initiation to A trunked communication system.
In the present embodiment, group Interworking gateway inspection finds that AG2 exists, association be B1, C3, D2 phone group, therefore send group calling to B, C, D tri-trunked communication systems and set up instruction 711.Group calling is set up in Indication message and is comprised following parameter: MCC, MNC and GSSI of B1; MCC, MNC and GSSI of C3; MCC, MNC and GSSI of D2; The GSSI of AG2.
Whether the corresponding relation of each trunked communication system inspection call group number and group pass chain store meets the record 712 of oneself.
If the C3 phone group of C trunked communication system has exited AG2 in previous, corresponding relation between the GSSI just not having GSSI and the AG2 of C3 in the record of so C trunked communication system, C trunked communication system replys a refusal response to group Interworking gateway, does not participate in this group calling 713.
In the present embodiment, the C3 phone group of C trunked communication system is also in the association of AG2, C trunked communication system has examined the corresponding relation between the GSSI of GSSI and the AG2 of C3, and therefore C trunked communication system accepts group calling and sets up instruction, and C3 phone group adds this group calling 714.
B1, D2 phone group adds the process of this group calling roughly the same, repeats no more.
The group calling comprising all users in B1, C3, D2 tri-phone groups is set up, and what group Interworking gateway grasped speech transmission route as group calling control centre authorizes 715.
Whether as shown in Figure 4, each trunked communication system sends intercommunication to group Interworking gateway and verifies message, specify the interoperation relationships of phone group also to exist to verify.The flow process that this intercommunication is verified periodically is carried out at set intervals, but after abnormal conditions appear in certain cross-system intercommunication group calling, corresponding trunked communication system should be initiated intercommunication at once and be verified.
In the present embodiment, A trunked communication system sends intercommunication to group Interworking gateway and verifies message, and the GSSI that message comprises the GSSI corresponding A G4 of GSSI, A2 of the GSSI corresponding A G1 of A1 is verified in intercommunication, and starts timer 401.
Group Interworking gateway checks in the association of AG1 whether have in the association of A1, AG4 whether have A2, and result is replied to A trunked communication system 402 after receiving intercommunication verification message.
If timer expiry, and A trunked communication system fails to receive the reply 403 of group Interworking gateway, then A trunked communication system re-starts and sends to group Interworking gateway the process that message 401 is verified in intercommunication.Also fail for 3 times if retransmit to receive the reply 404 organizing Interworking gateway, then A trunked communication system is deleted the corresponding relation of the GSSI of GSSI and the AG1 of A1, is deleted the corresponding relation 405 of the GSSI of GSSI and the AG4 of A2 in the record of oneself.
If A trunked communication system receives the reply of group Interworking gateway within the scope of timer, then check the corresponding relation 407 in replying.In the present embodiment, the corresponding relation of the GSSI of GSSI and the AG4 of A2 exists, then in the record of self, keep this record 408; The corresponding relation of the GSSI of GSSI and the AG1 of A1 does not exist, then in the record of self, delete the corresponding relation 405 of the GSSI of GSSI and the AG1 of A1.
As shown in Figure 5, trunked communication system initiatively can send intercommunication exit message to group Interworking gateway, the phone group specified is exited from original interoperation relationships.
In the present embodiment, C trunked communication system sends intercommunication exit message to group Interworking gateway, and message comprises the GSSI of GSSI and AG2 of C3; And start timer 501.
After group Interworking gateway receives intercommunication exit message, in the linked list of AG2, delete C3 phone group, and reply a confirmation response 502 to C trunked communication system.
If timer expiry, the reply that C trunked communication system fails to receive group Interworking gateway responds 503, then C trunked communication system re-starts the process 501 sending intercommunication exit message to group Interworking gateway.Still the reply failing to receive group Interworking gateway if retransmit for 2 times responds 504, then C trunked communication system no longer retransmits intercommunication exit message, but with have received that to reply situation about responding the same, the corresponding relation 505 between the GSSI directly deleting GSSI and the AG2 of C3 in the record of self.
As shown in Figure 6, group Interworking gateway can initiate a flow process, removes the association that certain group closes each phone group in chain store.
In the present embodiment, group Interworking gateway will remove A1, B3, C1, D4 tetra-phone groups associated by AG1, therefore send intercommunication to tetra-trunked communication systems of A, B, C, the D belonging to these four phone groups and remove message, comprise following parameter in message: MCC, MNC and GSSI of A1; MCC, MNC and GSSI of B3; MCC, MNC and GSSI of C1; MCC, MNC and GSSI of D4; The GSSI of AG2.Start timer 601 simultaneously.
B trunked communication system receives this intercommunication and removes after message, the corresponding relation between the GSSI leaving out GSSI and the AG1 of B3 in the record of self, and replys a confirmation response 602 to group Interworking gateway.
C, D trunked communication system performs same process, repeats no more.
In the present embodiment, organize the reply response 603 that Interworking gateway does not receive A trunked communication system under timer timeout condition, then organize Interworking gateway and re-start the process 601 sending intercommunication releasing message to A trunked communication system.If retransmit the response 604 still failing to receive A trunked communication system for 2 times, then organize Interworking gateway and A trunked communication system is considered as replying 605, no longer continue to retransmit intercommunication and remove message.
When A, B, C, D tetra-trunked communication systems belonging to A1, B3, C1, D4 tetra-phone groups that AG1 associates all are replied after 606, group Interworking gateway deletion group closes chain store AG1, and the interoperation relationships between four phone groups of originally association just relieves 607.
Should be understood that, the above discloses from the angle of specific embodiment further to technology contents of the present invention, its object is to allow everybody be easier to understand content of the present invention, but does not represent embodiments of the present invention and rights protection is confined to this.Scope is illustrated in appended claims, every apparent amendment within aim of the present invention, also due within protection of the present invention.
Claims (10)
1. between trunked communication system, realize a method for different phone groups cross-system intercommunication, it is characterized in that,
It sets up one to organize Interworking gateway between each trunked communication system, group Interworking gateway is communicated with each trunked communication system by interconnecting interface, group Interworking gateway configures and safeguards that a group closes the list of chain store, and each group closes chain store and associate several phone groups belonging to different trunked communication system needing intercommunication; Each trunked communication system safeguards that phone group's group number belonging to native system and group close the record of corresponding relation between chain store; The group calling of cross-system intercommunication is by organizing Interworking gateway as Call-Control1 center;
Described method comprises following process:
(1) when group calling is initiated, first checked that this phone group's group number closes the corresponding relation record of chain store with group by the trunked communication system of exhaling belonging to phone group, judge whether this group calling belongs to the group calling of cross-system intercommunication, if so, then the group calling request of setting up is sent to group Interworking gateway;
(2), after group Interworking gateway receives group calling foundation request, inspection group closes chain store and also determines to organize the different trunked communication systems each phone group belonging to of pass associated by chain store, sends group calling foundation instruction to these trunked communication systems;
(3) after each trunked communication system receives the group calling foundation instruction from group Interworking gateway, check whether close corresponding relation record between chain store with native system phone group group number with group conforms to, if so, then accept group calling and set up instruction, add the group calling of this cross-system intercommunication.
2. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 1, it is characterized in that, if group calling is initiated by group roamer in process (1), the group calling request of setting up is sent to group Home System by place group roaming system; Group Home System receives after group calling sets up request, checks that whether the group number of this phone group is organized with certain and closes chain store and there is corresponding relation; If corresponding relation exists, group Home System sends group calling transinformation to the group roaming system of initiating group calling foundation request, and information comprises phone group's group number and closes chain store with corresponding group; After group roaming system receives group calling transinformation, again send group calling to group Interworking gateway and set up request, then proceed the cross-system intercommunication group calling of process (1), (2), (3).
3. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 2, it is characterized in that, it also comprises following process:
Whether, after specifying the interoperation relationships of phone group to set up, each trunked communication system periodically sends intercommunication and verifies message to group Interworking gateway, still exist to verify the interoperation relationships of specifying phone group; Group Interworking gateway is after receiving intercommunication verification message, check that associating between chain store is closed with group in this phone group, and check result is replied to trunked communication system, do not existed if result is association, trunked communication system is deleted this phone group's group number and is organized the corresponding relation record closed between chain store.
4. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 3, it is characterized in that, process (1) starts timer after the group calling request of setting up being sent to group Interworking gateway by the trunked communication system of exhaling belonging to phone group at once; If timer expiry and the response that do not obtain from group Interworking gateway, then this trunked communication system sets up group calling in native system, no longer performs the process of cross-system intercommunication group calling set up.
5. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 4, it is characterized in that, if timer expiry and do not obtain from group Interworking gateway response, then this trunked communication system belonging to phone group is exhaled to set up group calling in native system, no longer perform the process setting up cross-system intercommunication group calling, and perform following process at once:
Whether each trunked communication system sends intercommunication and verifies message to group Interworking gateway, still exist to verify the interoperation relationships of specifying phone group; Group Interworking gateway is after receiving intercommunication verification message, check that associating between chain store is closed with group in this phone group, and check result is replied to trunked communication system, do not existed if result is association, trunked communication system is deleted this phone group's group number and is organized the corresponding relation record closed between chain store.
6. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 5, it is characterized in that, when having phone group will exit intercommunication, trunked communication system belonging to this phone group sends intercommunication exit message to group Interworking gateway, and the group that this intercommunication exit message comprises phone group and the correspondence of specifying closes chain store; After group Interworking gateway receives this intercommunication exit message, this phone group is closed the association of chain store from group and deletes.
7. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 6, it is characterized in that, when certain interoperation relationships set up between some phone group will be removed completely, group Interworking gateway sends intercommunication to each trunked communication system and removes message, this intercommunication is removed message and is comprised the phone group's group number adhering to each trunked communication system separately that the group of specifying closes chain store and association thereof, requires that releasing group closes associating of chain store and these phone groups; Each trunked communication system receives this intercommunication and removes after message, is deleted by the corresponding relation record that the phone group's group number belonging to self and this group are closed between chain store.
8. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 3, it is characterized in that, after trunked communication system sends intercommunication verification message to group Interworking gateway, receive the reply of group Interworking gateway if fail, trunked communication system is retransmitted intercommunication and is verified message; All fail to be replied if repeatedly retransmit, trunked communication system is deleted voluntarily and is specified phone group's group number to close the corresponding relation of chain store with group.
9. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 6, it is characterized in that, after trunked communication system sends intercommunication exit message to group Interworking gateway, receive the reply of group Interworking gateway if fail, trunked communication system retransmits intercommunication exit message; All fail to be replied if repeatedly retransmit, trunked communication system is deleted voluntarily and is specified phone group's group number to close the corresponding relation of chain store with group.
10. a kind of method realizing the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 7, it is characterized in that, after group Interworking gateway sends intercommunication releasing message to each trunked communication system, receive the reply of certain trunked communication system if fail, group Interworking gateway is retransmitted intercommunication to this trunked communication system and is removed message; All fail to be replied if repeatedly retransmit, group Interworking gateway is deleted designated groups voluntarily and is closed chain store, no longer safeguards that this group closes the original phone group's interoperation relationships of chain store.
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