CN103024686A - 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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- CN103024686A CN103024686A CN2012105916180A CN201210591618A CN103024686A CN 103024686 A CN103024686 A CN 103024686A CN 2012105916180 A CN2012105916180 A CN 2012105916180A CN 201210591618 A CN201210591618 A CN 201210591618A CN 103024686 A CN103024686 A CN 103024686A
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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 the trunking communicating technology field, relate generally to the implementation method that different phone groups carry out the cross-system intercommunication between a kind of trunked communication system.
Background technology
Trunked communication system belongs to professional mobile communication, is the radio dispatch control communication system of a kind of shared resource, contribution, shared channel equipment and service, and it is representing the Private Mobile Communication Network developing direction of one of communication system.The characteristics of trunked communication system maximum are that Speech Communication adopts PTT(Push To Talk) the button form, by a mode that the pushes to talk channel that continues, the speed that continues, and can support group calling (Group Call).
Group calling is most important dispatching services and command means in the trunked communication system, be characterized in getting ready to go into action in hundreds, when namely the side PTT key of pressing terminal equipment carries out audio call, other each users that are organized in same phone group with it receive this audio call simultaneously, form the communication pattern of one-to-many.If a plurality of users of same phone group press the PTT key simultaneously, judge that by system which user has the right to send speech, and other all on the same group the user all can only receive speech.That is to say, in the 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 trunked communication system participates in the same group calling jointly with another phone group of another trunked communication system, and this just requires to exist between the trunked communication system implementation method of different phone groups cross-system intercommunication.
In the current cluster communication, generally come the intercommunication of different phone groups between the realization system by ride, as shown in Figure 1.First trunked communication system 11 is made of system equipment 1100 and travelling carriage 1101, communicates by air interface between travelling carriage and the system equipment, and wherein several travelling carriages 1101 are organized in the same X phone group 111; Second trunked communication system 12 is made of system equipment 1200 and travelling carriage 1201, communicates by air interface between travelling carriage and the system equipment, and wherein several travelling carriages 1201 are organized in the same Y phone group 121.When X phone group and Y phone group need intercommunication, select a ride 1202, it is 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 had travelling carriage to press the PTT key, system equipment 1100 was delivered to ride 1202 with this signal in the first system, makes it to send corresponding PTT signal by air interface in Y phone group of second system, and transmit voice signal in process subsequently; Equally, when Y phone group has travelling carriage to press the PTT key, receive the ride 1202 of system equipment 1200 notices aloft on the interface, by wired mode notice is delivered to system equipment 1100 in the first system, then this notice can send to all travelling carriages in the X phone group, and voice signal also is such transfer mode in the subsequent process.By the transmission of ride, X phone group is just with Y phone group intercommunication.
Yet there are several defectives in this method.At first be to solve the conflict of PTT button.When the user of X phone group and the user of Y phone group press the PTT key simultaneously, because first system and second system authorize user's speech of native system separately, cause the user of X phone group to listen authorized user speech in the first system, the user of Y phone group listens authorized user speech in the second system.In this case, intercommunication is not set up.
Next is the sign that can not correctly show speaker, when the user of X phone group presses PTT key when speech, the speaker number of the user's demonstration Y phone group in be ride at the intrasystem number of second, rather than the number of actual spoken user.
In addition, in TETRA ISI standard, mention a kind of group and connect business, can be used for the intercommunication of different phone groups between system.Connect by group, several different groups are bound up, and specify one of them group as control group, thereby form intercommunication.Although group connects the professional problem that can solve the conflict of PTT button and speaker number demonstration mistake, but the system that requires intercommunication all is the trunked communication system of TETRA standard, its operation flow is complicated, make mistakes easily, and lack abnormality processing flow process after makeing mistakes, also be difficult in actual applications promote.
Summary of the invention
Technical problem to be solved by this invention is for possessing interconnecting interface, can realizing a plurality of trunked communication systems of the network interconnection, a kind of method that realizes the cross-system intercommunication of different phone groups between trunked communication system is provided, can in adhere to each phone group of different trunked communication systems separately, initiates and safeguard same group calling.For this reason, the present invention is by the following technical solutions:
It sets up a group Interworking gateway between each trunked communication system, the group Interworking gateway communicates by interconnecting interface and each trunked communication system, the configuration of group Interworking gateway also safeguards that is organized a tabulation of closing chain store, and each group is closed related several of chain store needs the phone group that belongs to different trunked communication systems of intercommunication; Each trunked communication system is safeguarded the record of corresponding relation between the affiliated phone group's group number of native system and the group pass chain store; The group calling of cross-system intercommunication is by organizing Interworking gateway as calling out control centre;
Described method comprises following process:
When (1) group calling is initiated, exhaled the affiliated trunked communication system of phone group at first to check this phone group's group number and the corresponding relation record of organizing the pass chain store, judge whether this group calling belongs to the group calling of cross-system intercommunication, if then the group calling request of setting up is sent to the group Interworking gateway;
(2) after the group Interworking gateway received that group calling foundation is asked, inspection group's pass chain store also determined to organize the associated affiliated different trunked communication systems of each phone group of pass chain store, sends group calling to these trunked communication systems and sets up indication;
(3) each trunked communication system is received from after the group calling foundation indication of organizing Interworking gateway, check with native system phone group group number and group pass chain store between corresponding relation record and whether conform to, if, then accept group calling and set up indication, add the group calling of this cross-system intercommunication.Described interconnecting interface is that each trunked communication system is followed same interconnect standard, can carry out the intersystem interface of signaling and phonetic data.
The calling control centre of described group calling in group-calling process, judges and authorizes certain user to have the speech transmission route, is in other users in the same group calling and only has speech and receive power; Send when former transmission user finishes speech, discharge the PTT key after, if other a plurality of users press the PTT key, call out control centre continue to judge and authorize press the PTT key the user one of them possess the speech transmission route, other users only have speech to receive power.
Further technical scheme is, if group calling is to be initiated by the group roamer in the process (1), place group roaming system sends to the group Home System with the group calling request of setting up; After the group Home System receives that request is set up in group calling, check whether the group number of this phone group exists corresponding relation with certain group pass chain store; If corresponding relation existence, group Home System, comprise phone group's group number to the group roaming system transmission group calling transinformation of initiating group calling foundation request and close chain store with corresponding group in the information; Group again sends group calling to the group Interworking gateway and sets up request after roaming system receives the group calling transinformation, then proceeds process (1), 2), the cross-system intercommunication group calling of (3).
Described roaming, it is a proper noun in the mobile communication system, refer to belong to the user of certain mobile communication system, leave the signal coverage of the mobile communication system under itself, enter into the signal coverage of another mobile communication system, because two mobile communication system can be interconnected, so this user also can register and enjoy mobile communication business in new mobile communication system.This user is called the roamer; The professional mobile communication system that temporarily provides at its place is called roaming system during roaming; Mobile communication system under itself is called Home System.
Trunked communication system also is a kind of mobile communication system, and therefore same " user's roaming " definition is arranged.Outside " user's roaming ", trunked communication system also has " group roaming " proprietary definition.The group roaming refers to that the user of certain phone group has left the ownership trunked communication system of this phone group, has entered another trunked communication system, and this user is called " group roamer ".Accordingly, when the group roaming occured, another trunked communication system at phone group's ownership trunked communication system and group roamer place was called " group Home System " and " group roaming system ".
Further technical scheme is that described method also comprises following process:
Whether after the interoperation relationships of specifying phone group was set up, each trunked communication system periodically sent intercommunication and verifies message to the group Interworking gateway, specify the interoperation relationships of phone group still to exist to verify; The group Interworking gateway is after receiving intercommunication verification message, check that this phone group and group close related between the chain store, and check result replied to trunked communication system, and if being association, the result do not existed, trunked communication system is deleted this phone group's group number and group and is closed corresponding relation record between the chain store.
Further technical scheme is, process (1) starts timer after being exhaled the affiliated trunked communication system of phone group that the group calling request of setting up is sent to the group Interworking gateway at once; If timer expiry and do not obtain response from the group Interworking gateway, then this trunked communication system is set up group calling in native system, no longer carries out the process of cross-system intercommunication group calling of setting up.
Further technical scheme is, if timer expiry and do not obtain from the group Interworking gateway response, then exhaled this trunked communication system under the phone group in native system, to set up group calling, no longer carry out and set up the process of cross-system intercommunication group calling, and carry out at once following process:
Whether each trunked communication system sends intercommunication and verifies message to the group Interworking gateway, specify the interoperation relationships of phone group still to exist to verify; The group Interworking gateway is after receiving intercommunication verification message, check that this phone group and group close related between the chain store, and check result replied to trunked communication system, and if being association, the result do not existed, trunked communication system is deleted this phone group's group number and group and is closed corresponding relation record between the chain store.
Further technical scheme is, when having phone group to withdraw from intercommunication, the trunked communication system under this phone group sends the intercommunication exit message to the group Interworking gateway, and this intercommunication exit message comprises that the phone group of appointment and corresponding group close chain store; After the group Interworking gateway is received this intercommunication exit message, this phone group is deleted from the association of group pass chain store.
Further technical scheme is, when certain interoperation relationships of setting up between specific some phone groups will be removed fully, the group Interworking gateway sends intercommunication to each trunked communication system and removes message, this intercommunication is removed the group that message comprises appointment and is closed chain store and the related phone group's group number that adheres to each trunked communication system separately thereof, requires the releasing group to close the related of chain store and these phone groups; After each trunked communication system receives that message is removed in this intercommunication, with the corresponding relation record deletion between the phone group's group number under self and this group pass chain store.
On the basis of aforementioned schemes, further technical scheme is that if fail to receive the answer of group Interworking gateway, trunked communication system can be retransmitted intercommunication and verify message after trunked communication system sent intercommunication verification message to the group Interworking gateway; All fail to obtain to reply if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number and group to close the corresponding relation of chain store.
On the basis of aforementioned schemes, further technical scheme is, after trunked communication system sent the intercommunication exit message to the group Interworking gateway, if fail to receive the answer of group Interworking gateway, trunked communication system can be retransmitted the intercommunication exit message; All fail to obtain to reply if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number and group to close the corresponding relation of chain store.
On the basis of aforementioned schemes, further technical scheme is, after the group Interworking gateway sent intercommunication releasing message to each trunked communication system, if fail to receive the answer of certain trunked communication system, the group Interworking gateway can be retransmitted intercommunication to this trunked communication system and remove message; All fail to obtain to reply if repeatedly retransmit, the group Interworking gateway can be deleted voluntarily designated groups and close chain store, no longer safeguards the original phone group's interoperation relationships of this group pass chain store.
Adopt technical scheme of the present invention, when realizing the intercommunication group calling of different phone groups cross-system, be equivalent to construct a larger virtual system on these trunked communication systems, the group Interworking gateway plays a role as the calling control centre of virtual system; It is new phone group's group number that group is closed chain store, and this new phone group has comprised all users in each phone group that adheres to different trunked communication systems separately of its association.
Therefore, adopt implementation method of the present invention, can realize the intercommunication group calling of different phone groups cross-system.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 calling control centre, speech therefore can not occur and send the conflict of authorizing, the mistake that the speaker number shows can not appear.
On this basis and since considered in the technical scheme of the present invention intercommunication maintenance, withdraw from, the method for operation under the different situations such as releasing so that this scheme can avoid the group calling that causes owing to various abnormal conditions unsuccessfully.
Description of drawings
Fig. 1 is the group interoperability methods schematic diagram under the prior art.
Fig. 2 is that the group in the present invention program is closed the chain store configuration flow.
Fig. 3 is the group calling start flow under the group intercommunication condition in the present invention program.
Fig. 4 is that flow process is verified in the group intercommunication in the present invention program.
Fig. 5 is that flow process is withdrawed from 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 is that the group roamer initiates the group calling flow process under the interior group intercommunication condition of the present invention program.
Embodiment
In order to fully understand technology contents of the present invention, the below provides specific embodiment, by reference to the accompanying drawings technical scheme of the present invention is carried out comparatively detailed introduction and explanation.
In the present embodiment, A, B, four trunked communication systems of C, D are arranged, can be undertaken interconnected by interconnecting interface each other.Wherein A1 phone group of A system, B3 phone group of B system, C1 phone group of C system, d system D4 phone group need intercommunication; B1 phone group of B system, C3 phone group of C system, d system D2 phone group need intercommunication; B2 phone group of B system, C2 phone group of C system, d system D1 phone group need intercommunication; A2 phone group of A system, d system D3 phone group need intercommunication.Set up a group Interworking gateway between these four trunked communication systems, the group Interworking gateway communicates by interconnecting interface and each trunked communication system for this reason.
As shown in Figure 2, at first organize the configuration of intercommunication.
Each trunked communication system configuration needs the phone group 201 of intercommunication.A, B, C, D four systems all give record to aforementioned each phone group's information of intercommunication that needs.
Group Interworking gateway configuration group is closed chain store, each phone group that needs intercommunication is associated with same group closes chain store 202.In the present embodiment, A1, B3, C1, D4 are associated with group and close among the chain store AG1, and B1, C3, D2 are associated with group and close among the chain store AG2, and B2, C2, D1 are associated with group and close among the chain store AG3, and A2, D3 are associated with group and close among the chain store AG4.
Because certain fault, the group Interworking gateway also has been associated with the A2 phone group of A trunked communication system among the AG2 mistakenly.
The group Interworking gateway closes chain store according to group, to same group of system's transmission group intercommunication request 203 of closing under each associated phone group of chain store.In the present embodiment, close chain store AG2 in order to dispose group, the group Interworking gateway need to be to A, B, C, D four systems transmission group intercommunication request message.Group intercommunication request message comprises MCC, MNC and the GSSI of following parameter: A2; The MCC of B1, MNC and GSSI; The MCC of C3, MNC and GSSI; The MCC of D2, MNC and GSSI; The GSSI of AG2.Wherein MCC and MNC represent respectively national code and the network code of affiliated system of this phone group, and GSSI represents sets of numbers.
The group intercommunication request message that trunked communication system is relatively received and original configuration whether consistent 204.In the present embodiment, the A trunked communication system receives the group intercommunication request message of AG2, requirement is associated with A2, B1, C3, D2 among the AG2, and is inconsistent with the record of A trunked communication system, so the A trunked communication system is replied intercommunication configure-reject response 205 to the group Interworking gateway.
Mistake is found in group Interworking gateway inspection configuration, leaves out A2 in the association of AG2, thereby has safeguarded the correctness 206 of AG2.After righting a wrong, the group Interworking gateway is again again to B, C, d system transmission group intercommunication request message 203.
The B trunked communication system receives the group intercommunication request message of AG2, requirement is associated with B1, C3, D2 among the AG2, consistent with the record of B trunked communication system, so the corresponding relation between the GSSI of the GSSI of B trunked communication system record B1 and AG2, and to group Interworking gateway answer intercommunication configuration successful response 207.
C, D trunked communication system check, record, reply the group intercommunication request about AG2, and method is similar, repeats no more.
After the group Interworking gateway is received B1, the C3 of AG2 association, the intercommunication configuration successful response of B, C, D trunked communication system under the D2 208, the group intercommunication configuration of AG2 is just successful 209.
The group intercommunication layoutprocedure of AG1, AG3, AG4 roughly the same repeats no more.
As shown in Figure 3, finish after the group intercommunication configuration, can carry out the intercommunication group calling of cross-system.
In the present embodiment, certain user in the D trunked communication system supresses the PTT key, and group calling 301 is initiated in application.That is to say that this user has sent group calling to the D trunked communication system and set up request.
After the D trunked communication system received group calling foundation request, at first the record of inspection group's intercommunication configuration checked whether the affiliated phone group of this user has corresponding group pass chain store 302.
If this user's call conversation group D5 does not have corresponding group to close chain store, set up so normal D5 phone group group calling 303 in the D trunked communication system.
If this user's call conversation group D2, the systems inspection record finds to exist corresponding group to close chain store AG2, then belong to the intercommunication group calling of cross-system, the D trunked communication system sends group calling to the group Interworking gateway and sets up request, the GSSI that comprises D2 in the request message, the GSSI of AG2 are set up in group calling, and start timer 304.
If timer expiry, D trunked communication system fail to receive the message 305 from the group Interworking gateway, then the D trunked communication system is set up the group calling 303 of D2 phone group in native system, no longer carries out the foundation of intercommunication group calling.
After the group Interworking gateway receives that request is set up in group calling, check whether AG2 exists 306.
If AG2 does not exist, organize so Interworking gateway and set up voluntarily the interior D2 phone group group calling 303 of native system to a refusal response of D trunked communication system answer 307, D trunked communication system.
In the present embodiment, the inspection of group Interworking gateway finds that AG2 exists, and related is B1, C3, D2 phone group, therefore sends group calling to B, C, three trunked communication systems of D and sets up indication 308.MCC, MNC and the GSSI that comprises following parameter: B1 in the Indication message set up in group calling; The MCC of C3, MNC and GSSI; The MCC of D2, MNC and GSSI; The GSSI of AG2.
Whether the corresponding relation of each trunked communication system inspection conversation group number and group pass chain store meets the record 309 of oneself.
If the C3 phone group of C trunked communication system has withdrawed from AG2 in previous, just there is not so the corresponding relation between the GSSI of the GSSI of C3 and AG2 in the record of C trunked communication system, the C trunked communication system is replied a refusal response to the 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, the C trunked communication system has been examined the corresponding relation between the GSSI of the GSSI of C3 and AG2, so the C trunked communication system accepts group calling and set up indication, and C3 phone group adds this group calling 311.
The process that B1, D2 phone group add this group calling roughly the same repeats no more.
The group calling that comprises all users in B1, C3, three phone groups of D2 is set up, and the group Interworking gateway authorizes 312 as what group calling control centre grasped the speech transmission route.
Figure 7 shows that the group roamer initiates the intercommunication group calling of cross-system.
In the present embodiment, the group roamer who is positioned at the A trunked communication system supresses the PTT key, and group calling 701 is initiated in application.That is to say that this group roamer D trunked communication system to phone group's ownership in the A trunked communication system has sent group calling foundation request.
The A trunked communication system sends to D trunked communication system 702 with the group calling request of setting up.
After the D trunked communication system received group calling foundation request, at first whether the record of inspection group's intercommunication configuration was checked and is exhaled phone group to have corresponding group to close chain store 703.
If this user's call conversation group D5 does not have corresponding group to close chain store, set up so normal D5 phone group group calling 704 in the D trunked communication system.
If this user's call conversation group D2, the systems inspection record finds to exist corresponding group to close chain store AG2, then belong to the intercommunication group calling of cross-system, the D trunked communication system sends the group calling Transfer Message to the A trunked communication system, comprise the GSSI of D2, the GSSI of AG2 in the group calling Transfer Message, and start timer 705.
The A trunked communication system again sends group calling to the group Interworking gateway and sets up request, and the GSSI 706 of the GSSI, the AG2 that comprise D2 in the request message is set up in group calling.By the group roaming system benefit of asking to set up group calling be, in case group calling is set up, obtain at once the speech transmission route as this group roamer of group call initiator, can save the connecting time of group calling.
Set up message 707 if timer expiry, D trunked communication system fail to receive from the group calling of group Interworking gateway, then D trunked communication system notice A trunked communication system cancellation intercommunication group calling 708 changes the group calling 704 of setting up D2 phone group in the D trunked communication system into.
After the group Interworking gateway receives that request is set up in group calling, check whether AG2 exists 709.
If AG2 does not exist, organize so the interior D2 phone group group calling 704 of D trunked communication system that Interworking gateway is initiated to a refusal response of A trunked communication system answer 710, A trunked communication system notice D trunked communication system foundation group roamer.
In the present embodiment, the inspection of group Interworking gateway finds that AG2 exists, and related is B1, C3, D2 phone group, therefore sends group calling to B, C, three trunked communication systems of D and sets up indication 711.MCC, MNC and the GSSI that comprises following parameter: B1 in the Indication message set up in group calling; The MCC of C3, MNC and GSSI; The MCC of D2, MNC and GSSI; The GSSI of AG2.
Whether the corresponding relation of each trunked communication system inspection conversation group number and group pass chain store meets the record 712 of oneself.
If the C3 phone group of C trunked communication system has withdrawed from AG2 in previous, just there is not so the corresponding relation between the GSSI of the GSSI of C3 and AG2 in the record of C trunked communication system, the C trunked communication system is replied a refusal response to the 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, the C trunked communication system has been examined the corresponding relation between the GSSI of the GSSI of C3 and AG2, so the C trunked communication system accepts group calling and set up indication, and C3 phone group adds this group calling 714.
The process that B1, D2 phone group add this group calling roughly the same repeats no more.
The group calling that comprises all users in B1, C3, three phone groups of D2 is set up, and the group Interworking gateway authorizes 715 as what group calling control centre grasped the speech transmission route.
Whether as shown in Figure 4, each trunked communication system sends intercommunication to the 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 is periodically carried out at set intervals, but after abnormal conditions appearred in certain cross-system intercommunication group calling, corresponding trunked communication system should be initiated at once intercommunication and be verified.
In the present embodiment, the A trunked communication system sends intercommunication to the group Interworking gateway and verifies message, and the GSSI of GSSI corresponding A G4 of GSSI, A2 that message comprises the GSSI corresponding A G1 of A1 is verified in intercommunication, and starts timer 401.
The group Interworking gateway receives intercommunication verify message after, check in the association whether A1, AG4 are arranged in the association of AG1 whether A2 is arranged, and the result replied to A trunked communication system 402.
If timer expiry, and the A trunked communication system fails to receive the answer 403 of group Interworking gateway, then the A trunked communication system re-starts to the group Interworking gateway and sends the process that message 401 is verified in intercommunication.If retransmit the answer 404 of also failing to receive the group Interworking gateway for 3 times, then the A trunked communication system is deleted the corresponding relation 405 of GSSI of corresponding relation, the GSSI that deletes A2 and AG4 of the GSSI of the GSSI of A1 and AG1 in oneself record.
If the A trunked communication system is received the answer of group Interworking gateway in the timer scope, then check the corresponding relation 407 in replying.In the present embodiment, the corresponding relation of the GSSI of A2 and the GSSI of AG4 exists, and then keeps this record 408 in the record of self; The corresponding relation of the GSSI of A1 and the GSSI of AG1 does not exist, then the corresponding relation 405 of the GSSI of the GSSI of deletion A1 and AG1 in the record of self.
As shown in Figure 5, trunked communication system can initiatively send the intercommunication exit message to the group Interworking gateway, and the phone group of appointment is withdrawed from from original interoperation relationships.
In the present embodiment, the C trunked communication system sends the intercommunication exit message to the group Interworking gateway, and message comprises the GSSI of C3 and the GSSI of AG2; And startup timer 501.
After the group Interworking gateway is received the intercommunication exit message, deletion C3 phone group in the linked list of AG2, and reply one for the C trunked communication system and confirm response 502.
If timer expiry, C trunked communication system fail to receive the answer response 503 of group Interworking gateway, then the C trunked communication system re-starts the process 501 that sends the intercommunication exit message to the group Interworking gateway.If retransmit the answer response 504 of still failing to receive the group Interworking gateway for 2 times, then the C trunked communication system is no longer retransmitted the intercommunication exit message, but with to have received the situation of replying response the same, the direct corresponding relation 505 between the GSSI of the GSSI of deletion C3 and AG2 in the record of self.
As shown in Figure 6, the group Interworking gateway can be initiated a flow process, removes the association that certain group is closed each phone group in the chain store.
In the present embodiment, the group Interworking gateway will be removed the associated A1 of AG1, B3, C1, four phone groups of D4, therefore four trunked communication systems of A, B, C, D under these four phone groups send intercommunication and remove message, comprise MCC, MNC and the GSSI of following parameter: A1 in the message; The MCC of B3, MNC and GSSI; The MCC of C1, MNC and GSSI; The MCC of D4, MNC and GSSI; The GSSI of AG2.Start simultaneously timer 601.
The B trunked communication system receives this intercommunication remove message after, the corresponding relation between the GSSI that in the record of self, leaves out B3 and the GSSI of AG1, and reply to the group Interworking gateway and confirm to respond 602.
C, D trunked communication system are carried out same process, repeat no more.
In the present embodiment, the group Interworking gateway is not received the answer response 603 of A trunked communication system in the timer expiry situation, then organizes Interworking gateway and re-starts the process 601 that sends intercommunication releasing message to the A trunked communication system.If retransmit the response 604 of still failing to receive the A trunked communication system for 2 times, then organize Interworking gateway the A trunked communication system is considered as replying 605, no longer continue to retransmit intercommunication and remove message.
Four trunked communication systems of A, B, C, D under four phone groups of A1, B3, C1, the D4 of AG1 association are all replied after 606, and group Interworking gateway deletion group is closed chain store AG1, and originally the interoperation relationships between four related phone groups has just removed 607.
Should be understood that the above angle from specific embodiment discloses further to technology contents of the present invention, its purpose 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.Protection range of the present invention is illustrated in the appended claims, and every apparent modification within aim of the present invention is also due within the protection of the present invention.
Claims (10)
1. a method that realizes the cross-system intercommunication of different phone groups between trunked communication system is characterized in that,
It sets up a group Interworking gateway between each trunked communication system, the group Interworking gateway communicates by interconnecting interface and each trunked communication system, the configuration of group Interworking gateway also safeguards that is organized a tabulation of closing chain store, and each group is closed related several of chain store needs the phone group that belongs to different trunked communication systems of intercommunication; Each trunked communication system is safeguarded the record of corresponding relation between the affiliated phone group's group number of native system and the group pass chain store; The group calling of cross-system intercommunication is by organizing Interworking gateway as calling out control centre;
Described method comprises following process:
When (1) group calling is initiated, exhaled the affiliated trunked communication system of phone group at first to check this phone group's group number and the corresponding relation record of organizing the pass chain store, judge whether this group calling belongs to the group calling of cross-system intercommunication, if then the group calling request of setting up is sent to the group Interworking gateway;
(2) after the group Interworking gateway received that group calling foundation is asked, inspection group's pass chain store also determined to organize the associated affiliated different trunked communication systems of each phone group of pass chain store, sends group calling to these trunked communication systems and sets up indication;
(3) each trunked communication system is received from after the group calling foundation indication of organizing Interworking gateway, check with native system phone group group number and group pass chain store between corresponding relation record and whether conform to, if, then accept group calling and set up indication, add the group calling of this cross-system intercommunication.
2. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 1, it is characterized in that, if group calling is to be initiated by the group roamer in the process (1), place group roaming system sends to the group Home System with the group calling request of setting up; After the group Home System receives that request is set up in group calling, check whether the group number of this phone group exists corresponding relation with certain group pass chain store; If corresponding relation existence, group Home System, comprise phone group's group number to the group roaming system transmission group calling transinformation of initiating group calling foundation request and close chain store with corresponding group in the information; Group again sends group calling to the group Interworking gateway and sets up request after roaming system receives the group calling transinformation, then proceeds process (1), 2), the cross-system intercommunication group calling of (3).
3. a kind of method that realizes the cross-system intercommunication of different phone groups between trunked communication system as claimed in claim 2 is characterized in that it also comprises following process:
Whether after the interoperation relationships of specifying phone group was set up, each trunked communication system periodically sent intercommunication and verifies message to the group Interworking gateway, specify the interoperation relationships of phone group still to exist to verify; The group Interworking gateway is after receiving intercommunication verification message, check that this phone group and group close related between the chain store, and check result replied to trunked communication system, and if being association, the result do not existed, trunked communication system is deleted this phone group's group number and group and is closed corresponding relation record between the chain store.
4. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 3, it is characterized in that, process (1) starts timer after being exhaled the affiliated trunked communication system of phone group that the group calling request of setting up is sent to the group Interworking gateway at once; If timer expiry and do not obtain response from the group Interworking gateway, then this trunked communication system is set up group calling in native system, no longer carries out the process of cross-system intercommunication group calling of setting up.
5. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 4, it is characterized in that, if timer expiry and do not obtain from the group Interworking gateway response, then exhaled this trunked communication system under the phone group in native system, to set up group calling, no longer carry out and set up the process of cross-system intercommunication group calling, and carry out at once following process:
Whether each trunked communication system sends intercommunication and verifies message to the group Interworking gateway, specify the interoperation relationships of phone group still to exist to verify; The group Interworking gateway is after receiving intercommunication verification message, check that this phone group and group close related between the chain store, and check result replied to trunked communication system, and if being association, the result do not existed, trunked communication system is deleted this phone group's group number and group and is closed corresponding relation record between the chain store.
6. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 5, it is characterized in that, when having phone group to withdraw from intercommunication, trunked communication system under this phone group sends the intercommunication exit message to the group Interworking gateway, and this intercommunication exit message comprises the phone group of appointment and corresponding group pass chain store; After the group Interworking gateway is received this intercommunication exit message, this phone group is deleted from the association of group pass chain store.
7. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 6, it is characterized in that, when certain interoperation relationships of setting up between some phone group will be removed fully, the group Interworking gateway sends intercommunication to each trunked communication system and removes message, this intercommunication is removed the group that message comprises appointment and is closed chain store and the related phone group's group number that adheres to each trunked communication system separately thereof, requires the releasing group to close the related of chain store and these phone groups; After each trunked communication system receives that message is removed in this intercommunication, with the corresponding relation record deletion between the phone group's group number under self and this group pass chain store.
8. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 3, it is characterized in that, after trunked communication system sends intercommunication verification message to the group Interworking gateway, if fail to receive the answer of group Interworking gateway, trunked communication system can be retransmitted intercommunication and verify message; All fail to obtain to reply if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number and group to close the corresponding relation of chain store.
9. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 6, it is characterized in that, after trunked communication system sends the intercommunication exit message to the group Interworking gateway, if fail to receive the answer of group Interworking gateway, trunked communication system can be retransmitted the intercommunication exit message; All fail to obtain to reply if repeatedly retransmit, trunked communication system can be deleted voluntarily and specify phone group's group number and group to close the corresponding relation of chain store.
10. a kind of method that between trunked communication system, realizes the cross-system intercommunication of different phone groups as claimed in claim 7, it is characterized in that, after the group Interworking gateway sends intercommunication releasing message to each trunked communication system, if fail to receive the answer of certain trunked communication system, the group Interworking gateway can be retransmitted intercommunication to this trunked communication system and remove message; All fail to obtain to reply if repeatedly retransmit, the group Interworking gateway can be deleted voluntarily designated groups and close chain store, no longer safeguards the original phone group's interoperation relationships of this group pass chain store.
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