CN100341343C - Group service system based on nobile communication system and method for realing group service - Google Patents
Group service system based on nobile communication system and method for realing group service Download PDFInfo
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Abstract
The invention discloses a group service system based on nobile communication system, comprising core network and base station subsystem. The system further comprises group service control service for controling group service and group service switching center for performing switching group service, wherein the group service control service connects with group service switching center for conveying information coupling with group service; group service switching center connects with base station subsystem govered by group service switching center for conveying group service information. The invention also discloses a method for realing group service. According to the invention, any mobile communication system can provide group service, and the change and impact of existing mobile communication system is greatly small.
Description
Technical field
The present invention relates to the group service networking technology, be meant a kind of group service system especially based on mobile communication system, and based on the clustering service implementation methods of this system.
Background technology
Characteristics according to the user, mobile communication system can be divided into public access mobile radio and dedicated mobile communications subsystem, global mobile communication (GSM, Global System for Mobile Communication) system, code division multiple access (CDMA, Code Division Multiple Access) communication system etc. are public access mobile radio.
At present, moving communicating field is after digital communication systems such as analog communication system and gsm communication system, and cdma communication system begins to receive much attention with the advantage of its numerous uniquenesses, for example, power system capacity is big, and frequency spectrum planning is simple, adopt soft hand-off in the system, speech quality is good or the like.
Fig. 1 is a cdma communication system circuit domain networking schematic diagram, as shown in Figure 1, comprise attaching position register (HLR), mobile switching centre (MSC) and base station sub-system (BSS) in the circuit domain cdma communication system, also comprise Visited Location Registor (VLR) and AUC (AUC); If cdma communication system can be supported IN service, then cdma communication system also comprises the Service Switching Point of supporting IN service, also comprises Service Control Point in addition.The equipment that SSP increases newly in cdma communication system also makes it support the MSC updating apparatus of IN service by upgrading MSC.HLR and AUC can be integrated, be called HLR/AUC.HLR/AUC links to each other with each SSP or MSC in the cdma communication system by C interface; HLR/AUC links to each other with each VLR in the cdma communication system by D interface; HLR/AUC links to each other with SCP by the T2 interface.SCP links to each other with each SSP in the cdma communication system by the T1 interface.MSC links to each other with other MSC in the cdma communication system by E interface; SSP links to each other with other SSP in the cdma communication system by E interface.SSP or MSC link to each other with BSS in its administration lane place by the A interface.For simplifying cdma communication system, MSC, VLR or SSP, VLR can be integrated, be called SSP/MSC/VLR, the interface by separately carries out information interaction, thereby realizes its function separately.
Fig. 2 is a cdma communication system packet domain networking schematic diagram, as shown in Figure 2, except that comprising HLR, MSC, BSS, VLR and AUC, also comprises grouping control module (PCF) and group data service node (PDSN) in the packet domain cdma communication system.If cdma communication system can be supported IN service, then cdma communication system further comprises SSP and the SCP that supports IN service.Because the annexation between HLR, MSC, BSS, VLR, AUC, SSP and SCP with identical described in Fig. 1, therefore repeats no more.For simplifying cdma communication system, MSC, VLR or SSP, VLR can be integrated, be called SSP/MSC/VLR, the interface by separately carries out information interaction, thereby realizes its function separately.PCF can be considered the equipment among the BSS.PDSN links to each other with other PDSN in the cdma communication system by Ethernet, and different PDSN carries out data interaction by Ethernet.PDSN links to each other with PCF by the R-P interface, and PCF links to each other with BSS by the A8/A9 interface.When communication terminal inserts in the packet field network, this communication terminal is set up point-to-point the connection with PDSN, the Internet protocol of communication terminal (IP) Data-carrying is on the protocol stack of PPP(Point-to-Point Protocol), and grouped data is transferred to packet network from the IP network interface of PDSN.
The topmost feature of group service is to dispatch and to group busy.The scheduling feature of group service is meant that the communication terminal to some makes a call simultaneously, allows these communication terminals converse simultaneously; Grouping busy that function is meant do a simple operations on communication terminal of group service makes a call simultaneously, converses simultaneously all communication terminals in the respective communication group, thereby reach the effect of " getting ready to go into action in hundreds ".Group service is widely used in special net user, for example users such as army, railway, public security.
Because group service is applied to private network mostly, therefore internetwork compatibility is poor, is difficult to realize internetwork intercommunication; And each private network all needs a whole set of to support the equipment of group service, and the construction cost of private network is very high, and therefore only needing provide group service just can address the above problem in public access mobile radio.But cdma communication system can't provide group service at present, and this is a deficiency greatly for the cdma communication system with numerous advantages.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of group service system based on mobile communication system, makes any mobile communication system that group service can both be provided; Another object of the present invention is to by a kind of clustering service implementation methods based on said system.
In order to achieve the above object, the invention provides a kind of group service system based on mobile communication system, this system comprises: core network and base station sub-system, it is characterized in that, this system further comprises: be used for the group service Control Server of control sets group business, be used to realize the group service switching center of group service exchange, wherein, the group service Control Server links to each other with group service switching center, is used to transmit the group service control information; Group service switching center links to each other with other group service switching centers in the described system, is used to transmit cooperate the information that realizes group service; Group service switching center links to each other with the base station sub-system of described group service switching center administration, is used to transmit group service information.
Described group service Control Server links to each other with group service switching center and comprises: the group service Control Server links to each other with group service switching center by the interface that transmits the group service control information; Described group service switching center links to each other with other group service switching centers in the described system and comprises: group service switching center is by being used to realize cooperating between group service switching center the interface of realizing group service, links to each other with other group service switching centers in the described system; Described group service switching center links to each other with the base station sub-system of described group service switching center administration and comprises: group service switching center links to each other with the base station sub-system that described group service switching center administers by the A interface.
Described core network comprises mobile switching centre at least.Described core network comprises at least: Home Location Register, described group service switching center links to each other with Home Location Register by C interface.
Described group service Control Server links to each other with group service switching center and comprises: group service switching center links to each other with the group service Control Server by Ethernet; Described group service switching center links to each other with other group service switching centers in the described system and comprises: group service switching center links to each other with other group service switching centers in the described system by Ethernet; Described group service switching center links to each other with the base station sub-system of described group service switching center administration and comprises: group service switching center links to each other with the base station sub-system that described group service switching center administers by the A8/A9 interface.
Described core network is a group data service node, and described base station sub-system further comprises: the grouping control module.
Described core network comprises: Home Location Register, described group service Control Server links to each other with Home Location Register by the interface that is used for authentication and encryption.
The present invention also provides a kind of clustering service implementation methods of the group service system based on mobile communication system, and the method includes the steps of:
A, base station sub-system receive the group-calling service request of the group service information that carries of cluster service group calling initiator transmission, send this group-calling service request to group service switching center;
B, group service Control Server receive the group-calling service request that group service switching center sends, and send the group-calling service response that carries cluster service group calling information to described group service switching center;
C, described group service switching center receive the group-calling service response, according to described cluster service group calling information, set up the calling branch of cluster service group calling.
Described in the step B before described group service switching center sends the group-calling service response that carries cluster service group calling information, further comprise: according to the group service information of carrying in the group-calling service request, judge whether to allow to set up cluster service group calling, if allow, send the group-calling service response that carries cluster service group calling information to described group service switching center, otherwise, finish current cluster service group calling and set up flow process.
Described group service information comprises: group service group identification, initiator's sign and initiated area information.
Judge whether to allow to set up cluster service group calling according to the group service information of carrying in the group-calling service request described in the step B, further may further comprise the steps:
B1, according to the group service group identification in the group service information, judge whether described group service group has legitimacy, if, execution in step B2, otherwise, finish current cluster service group calling and set up flow process;
B2, according to the initiator in group service information sign, judge whether described initiator has legitimacy in described group service group, if, execution in step B3, otherwise, finish current cluster service group calling and set up flow process;
B3, identify according to the initiator in the group service information, judge whether described initiator has the authority of initiating cluster service group calling in described group service group, if, send the group-calling service response that carries cluster service group calling information to described group service switching center, otherwise, finish current cluster service group calling and set up flow process.
The switching center of group service described in the step C sets up the calling branch of cluster service group calling according to cluster service group calling information, comprise: described group service switching center is according to cluster service group calling information, set up the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system foundation and the group service group.
Described cluster service group calling information is group service group service zone inventory, and described group service group service zone inventory comprises cell list and at least corresponding to the group service switching center tabulation of described sub-district.
The switching center of group service described in the step C sets up the calling branch of cluster service group calling according to cluster service group calling information, further may further comprise the steps:
C1, described group service switching center judge whether and need send the group-calling service indication to other group service switching centers according to the tabulation of group service switching center, if, execution in step C2, otherwise, execution in step C3;
After C2, described group service switching center send the group-calling service indication that carries cell list to the group service switching center corresponding to the tabulation of group service switching center, receive the group-calling service indication corresponding to the group service switching center of group service switching center tabulation, set up calling branch between the group service switching center of transmission group-calling service indication and group service switching center corresponding to the tabulation of group service switching center;
C3, group service switching center be according to cluster service group calling information, sets up the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system foundation and the group service group.
The group service switching center that tabulates corresponding to group service switching center described in the step C2 further may further comprise the steps after receiving the group-calling service indication:
C21, provide the roaming number that is used to set up the group service cluster group calling of distribution to the group service switching center that sends the group-calling service indication corresponding to the group service switching center of group service switching center tabulation;
After roaming number is received by the group service switching center of C22, the indication of transmission group-calling service, send the speech channel foundation that carries roaming number to group service switching center and ask corresponding to the tabulation of group service switching center;
C23, after receiving that corresponding to the group service switching center of group service switching center tabulation request is set up in speech channel, determine that roaming number is to be used to set up the group service cluster group calling, the calling branch between the group service switching center of foundation and the indication of transmission group-calling service.
Further comprise after the described step C:
After D, described group service switching center receive and finish the request of cluster cluster group calling, remove the calling branch of cluster service group calling.
Remove the calling branch of cluster service group calling described in the step D, further comprise: remove the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system dismounting and the group service group.
If the calling branch of described cluster service group calling comprises the calling branch between group service switching center, then remove the calling branch of cluster service group calling described in the step D, further may further comprise the steps:
Calling branch between D1, dismounting and other group service switching centers;
Calling branch between the base station sub-system of D2, described other group service switching centers dismountings and its administration, and indicate the calling branch between communication terminal in described base station sub-system dismounting and the group service group.
The group service system that the present invention proposes is applicable to any mobile communication system, no matter be mobile communication system under the circuit domain networking mode or the mobile communication system under the packet domain networking mode, by in existing mobile communication system, increasing group service switching center and two logic entities of group service Control Server, make any mobile communication system can both support group service, very little to the change and the impact of existing mobile communication system.The group service system that proposes according to the present invention, other business of the realization of group service and existing mobile communication system are relatively independent, do not have interactional problem substantially.
In addition, the clustering service implementation methods based on this group service system that proposes according to the present invention is separated the control of group service and exchange, helps the follow-up developments of group service.The group service group information is stored in the group service Control Server, and user's personal information storage accomplishes really that in attaching position register group service group information and userspersonal information's storage is relatively independent.
Description of drawings
Fig. 1 is a cdma communication system circuit domain networking schematic diagram;
Fig. 2 is a cdma communication system packet domain networking schematic diagram;
Fig. 3 is for increasing the mobile communication system circuit domain networking schematic diagram of group service among the present invention;
Fig. 4 is group service realization flow figure under the circuit domain networking mode among the present invention;
Fig. 5 is for increasing the mobile communication system packet domain networking schematic diagram of group service among the present invention;
Fig. 6 sets up flow chart for cluster service group calling under the packet domain networking mode among the present invention;
Fig. 7 seizes flow chart for group service backward channel under the packet domain networking mode among the present invention;
Fig. 8 discharges flow chart for group service backward channel under the packet domain networking mode among the present invention;
Fig. 9 discharges flow chart for cluster service group calling under the packet domain networking mode among the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Among the present invention, in existing mobile communications system, increase group service Control Server (GSCS) and two logic entities of group service switching center (GSC), make mobile communication system can support group service.GSC can be the equipment that increases newly in mobile communication system, also can be by upgrading MSC to make it support the MSC updating apparatus of group service.By the Signalling exchange between GSC and GSCS, realization continuing and removing group service, thereby makes any mobile communication system that group service can both be provided.
Fig. 3 is for increasing the mobile communication system networking schematic diagram of group service among the present invention, as shown in Figure 3, in existing mobile communication system, increase GSCS and GSC, GSC can be the equipment that increases newly in the mobile communication system, also can obtain after the MSC of existing mobile communication system or SSP/MSC/VLR are upgraded.HLR/AUC links to each other with each GSCS in the mobile communication system respectively, interface between HLR/AUC and GSCS is used for operations such as the group service authentication, encryption to communication terminal, still store user's relevant information among the HLR/AUC, as the information of opening an account, signatory business information etc., for example, GSCS by with the information interaction of HLR/AUC, determine whether the user is legal group service group user.HLR/AUC links to each other with each GSC in the mobile communication system by C interface.GSCS links to each other with each GSC in the mobile communication system, and the interface between GSCS and GSC is used to realize the control to group service.Each GSC in the mobile communication system links to each other in twos, and the interface between GSC is used to realize trans-regional group service, promptly strides GSC when the group service scope of a group, needs the cooperation between GSC could realize group service.
GSCS is used to store the group information about group service, for example, and the communication terminal tabulation that comprises in group identification, group name, the group, scope of group service or the like; GSCS also can manage renewal to group information, for example, increases group communication terminal, deletion group communication terminal, dynamically recombinates, safeguards group etc.; GSCS also can be used for group service control, and group's safety management etc.GSC is used for the triggering of group service, carries out Signalling exchange with GSCS, and carries out continuing and removing of group service according to the indication of GSCS.
Fig. 4 is group service realization flow figure under the circuit domain networking mode among the present invention, and as shown in Figure 4, under the circuit domain networking mode, the implementation procedure of group service may further comprise the steps:
Step 401～step 403:BSS receives voice group call service (VGCS) request about group service, for example the dispatcher initiates the VGCS group calling request set up cluster service group calling, carries group service relevant informations such as group identification, initiator's sign, initiated area information, GSC sign in this VGCS group calling request; BSS sends this VGCS group calling request according to the GSC sign to GSC1.After GSC1 receives VGCS group calling request, send this VGCS group calling request to the current GSCS that group belonged to that sets up cluster service group calling according to group identification.GSCS receives VGCS group calling request, judge according to group identification whether this group has legitimacy, if group has legitimacy, continue then to judge whether the initiator has legitimacy in group and whether the initiator has the authority of initiating cluster service group calling in group, be that then execution in step 403 if be; Otherwise GSCS returns cluster service group calling to GSC1 and sets up failure response, and notice GSC1 does not allow to set up cluster service group calling, and GSC1 notifies the initiator not allow to set up cluster service group calling by BSS.If group does not have legitimacy, GSCS returns cluster service group calling to GSC1 and sets up failure response, and notice GSC1 does not allow to set up cluster service group calling, and GSC1 notifies the initiator not allow to set up cluster service group calling by BSS.
Step 403:GSCS returns VGCS group calling response to GSC1, allow to set up cluster service group calling, this VGCS group calling response carries the information relevant with setting up cluster service group calling, for example, group service zone inventory, group service zone inventory can comprise that cell list tabulates with relevant GSC, so that the follow-up cluster service group calling of setting up of GSC1.
After step 404～step 409:GSC1 receives VGCS group calling response, send VGCS group calling indication to the BSS in self compass of competency, indicate corresponding BSS to set up calling link in self compass of competency according to the cell list in the inventory of group service zone; Simultaneously, send VGCS group calling indication according to the relevant GSC tabulation in the inventory of group service zone to corresponding GSC2, indication GSC2 sets up the interior calling link of self compass of competency, this VGCS group calling indication carries the information relevant with setting up cluster service group calling, for example group identification, the cell list of this group in the GSC2 scope, GSC2 sends VGCS group calling indication according to the BSS of cell list in self compass of competency then, indicates corresponding BSS to set up calling link in self compass of competency.BSS returns VGCS group calling success response to the GSC that self belongs to after successfully setting up and calling out link.GSC2 returns VGCS group calling success response to GSC1, and this VGCS group calling success response carries GSC2 for setting up the roaming number that is used to set up the group service cluster group calling that the speech channel path distributes.GSC2 indicates corresponding BSS to set up and calls out between the process that links in self compass of competency to process that GSC1 returns VGCS group calling success response and GSC2 does not have tangible time sequencing, can carry out simultaneously, can carry out in different time points yet.
After step 410～step 413:GSC1 receives VGCS group calling success response, send the speech channel that carries roaming number to GSC2 and set up request; And sending VGCS group calling response to the initiator by BSS, GSC1 does not need by the time that all-calls branch all sets up in the group service group, just returns the VGCS group calling to the initiator and responds.GSC2 determines that this roaming number is to distribute to group service group, then sets up the speech channel path between GSC1 and the GSC2 after receiving that request is set up in speech channel.Signaling channel and speech channel path between GSC1 and the GSC2 all set up at this moment, and the VGCS group calling of group service is successfully set up, and this group is in the group calling communication state.
Above-described GSC1 sends in the VGCS group calling indication process to corresponding GSC2 according to the relevant GSC tabulation in the inventory of group service zone, and the GSC tabulation includes only GSC2.If comprise a plurality of GSC in the GSC tabulation, then GSC1 sends VGCS group calling indication to all GSC corresponding to the GSC tabulation simultaneously.
Path setting between above-described GSC and the BSS comprises sets up land circuit path and air traffic channel path, identical with the ordinary call process, does not repeat them here.
Path setting between GSC1 and the GSC2 comprises to be set up signaling channel and sets up the speech channel path, step 405 and step 409 are for setting up the process of signaling channel, be part newly-increased among the present invention, set up by defining new signaling realization GSC1 and the signaling channel between the GSC2; Step 410 and step 412 are for setting up the process of speech channel path, and this process and prior art are basic identical.
In actual applications, can be with the GSC1 that receives VGCS group calling request at first as master control GSC, GSC1 for example, the GSC that cluster service group calling is set up in all the other participations is auxiliary GSC, for example GSC2.Auxiliary GSC branch is used in the roaming number of setting up the group service cluster group calling, and this roaming number offered master control GSC, master control GSC makes a call to auxiliary GSC by roaming number, after auxiliary GSC delivers to calling, determine that roaming number is after being used to of self distributing setting up the roaming number of group service cluster group calling, to set up the speech channel path with master control GSC.
Master control GSC and auxiliary GSC set up in the process of speech channel path, auxiliary GSC can set up the wireless side resource simultaneously, promptly indicate the interior BSS of self compass of competency to set up the interior calling link of self compass of competency, carry out in the time of by a plurality of process, can improve the speed of setting up of group service cluster group calling greatly.
Owing to set up in the process of group service cluster group calling, need set up a plurality of calling branch, the process of setting up of each calling branch is all ofer short duration, therefore, master control GSC does not need to wait until that all-calls branch all sets up in the group service group, just return VGCS group calling response, can make calling branch set up process and carry out simultaneously with process from VGCS group calling response to the initiator that return to the initiator.
When mobile communication system is received the request that finishes current group service cluster group calling, master control GSC is responsible for removing each calling branch, this process of removing each calling branch comprises: the calling branch between each BSS of dismounting master control GSC and self administration, and the calling branch between dismounting master control GSC and auxiliary GSC.After auxiliary GSC receives the dismantling call request, the calling branch between each BSS of dismounting and self administration.
The group service scope of a group described above is striden GSC, and the cooperation between GSC realizes the process of group service.If the group service scope belongs to same GSC, then the calling branch between each BSS that only need GSC sets up and self administers just can.
Fig. 5 is for increasing the mobile communication system packet domain networking schematic diagram of group service among the present invention, as shown in Figure 5, in existing mobile communication system, increase GSCS and GSC, HLR/AUC links to each other with GSCS in the mobile communication system respectively, interface between HLR/AUC and GSCS is used for operations such as the group service authentication, encryption to communication terminal, still store user's relevant information among the HLR/AUC, as the information of opening an account, signatory business information etc., for example, GSCS by with the information interaction of HLR/AUC, determine whether the user is legal group service group user.GSCS links to each other with each GSC in the mobile communication system by Ethernet, is used to realize the control to group service.Each GSC in the mobile communication system links to each other by Ethernet, is used to realize trans-regional group service, promptly strides GSC when the group service scope of a group, needs the cooperation between GSC could realize group service.GSC links to each other with BSS by the A8/A9 interface.GSC links to each other with the BSS of its administration by the A8/A9 interface.
GSCS is used to store the group information about group service, for example, and the communication terminal tabulation that comprises in group identification, group name, the group, scope of group service or the like; GSCS also can manage renewal to group information, for example, increases group communication terminal, deletion group communication terminal, dynamically recombinates, safeguards group etc.; GSCS also can be used for group service control, and group's safety management etc.GSC is used for the triggering of group service, carries out Signalling exchange by Ethernet and GSCS, and carries out continuing and removing of group service according to the indication of GSCS.
Fig. 6 sets up flow chart for cluster service group calling under the packet domain networking mode among the present invention, and as shown in Figure 6, under the packet domain networking mode, the group call establishment process of group service may further comprise the steps:
Step 601～step 604:BSS1 receives the voice group call service request (VGCS CTORM) about group service, for example the dispatcher initiates the VGCS group calling request set up cluster service group calling, carries group service relevant informations such as group identification, initiator's sign, initiated area information, GSC sign in this VGCS group calling request; BSS1 sets up the tunnel according to the GSC identification request with GSC1 and is connected (A8-Setup-A9).BSS sets up the interior base station shared channel of self compass of competency.After GSC1 received that the tunnel connects the request of foundation, request was set up the tunnel with GSCS and is connected (All Reg Req).After GSCS receives that the tunnel connects the request of foundation, judge according to group identification whether this group has legitimacy, if group has legitimacy, then can 605 couples of initiators of first execution in step carry out authentication after, determine whether execution in step 606 according to authenticating result again, or direct execution in step 606; Otherwise GSCS returns cluster service group calling to GSC1 and sets up failure response, and notice GSC1 does not allow to set up cluster service group calling, and GSC1 notifies the initiator not allow to set up cluster service group calling by BSS1.
Step 605:GSCS by with the information interaction of HLR, judge whether the initiator has legitimacy in group and whether the initiator has the authority of initiating cluster service group calling in group, is that then execution in step 606 if be; Otherwise GSCS returns cluster service group calling to GSC1 and sets up failure response, and notice GSC1 does not allow to set up cluster service group calling, and GSC1 notifies the initiator not allow to set up cluster service group calling by BSS1.
Step 606～step 607:GSCS returns tunnel connection establishment response (All RegReply) to GSC1, setting up the tunnel connects, this tunnel connection establishment response carries the information relevant with setting up cluster service group calling, for example, group service zone inventory, group service zone inventory can comprise that cell list tabulates with relevant GSC, so that the follow-up cluster service group calling of setting up of GSC1; After GSC1 receives the tunnel connection establishment response, send tunnel connection establishment response (A9-Connect-A8) according to the cell list in the inventory of group service zone to the BSS in self compass of competency, as sending the tunnel connection establishment response, set up the tunnel and connect to BSS1.
Step 608～step 613:GSCS asks corresponding GSC to set up the tunnel and connects according to the relevant GSC tabulation in the inventory of group service zone, connects as set up the tunnel according to GSC list request GSC2.After GSC2 receives that the tunnel connects the request of foundation, set up the tunnel to the BSS2 request and connect.After the BSS2 tunnel connects the request of foundation, set up the interior base station shared channel of self compass of competency.BSS2 sends the tunnel connection establishment response to GSC2 then, sets up the tunnel and connects; After GSC2 receives the tunnel connection establishment response, send the tunnel connection establishment response to GSCS, set up the tunnel and connect, at this moment, the VGCS group calling is set up, and relevant groups is in the group calling communication state.
Step 606 does not have tangible time sequencing with the operating process of step 608, can carry out simultaneously, can carry out in different time points yet.
Fig. 7 seizes flow chart for group service backward channel under the packet domain networking mode among the present invention, and as shown in Figure 7, under the packet domain networking mode, group service backward channel preemption processes may further comprise the steps:
Step 701～step 704: under the group calling idle condition, communication terminal sends the backward channel request of seizing (push-to-talk (PTT) Request) to BSS1, carries communication terminal sign and group identification among this PTT Request.First PTT Request that BSS1 will receive seizes control messages (A9-PTT REQ) by the connection of A9 signaling to the GSC transmission.First A9-PTT REQ from a plurality of BSS that belongs to same group that GSC will receive by All-Registration Request, sends PTT REQ to GSCS.Then, after the communication terminal of then can 705 pairs of requests of first execution in step seizing backward channel carries out authentication, determine whether execution in step 706 according to authenticating result again, or direct execution in step 706.
After step 705:GSCS receives PTT REQ, by with the information interaction of HLR, judge that request seizes the communication terminal of backward channel and whether have the authority of seizing backward channel in group, if, execution in step 706; Otherwise GSCS returns to GSC and seizes the backward channel failure response, and notice GSC does not allow communication terminal to seize backward channel, and GSC does not allow it to seize backward channel by BSS1 notifying communication terminal.
Step 706～step 709:GSCS sends to GSC by All Registration Reply and seizes reverse channel response (PTT ACK), and notice GSC allows the respective communication terminal to seize backward channel.GSC connects the PTT ACK that receives to the BSS1 transmission by the A9 signaling, and notice BSS1 allows the respective communication terminal to seize backward channel.BSS1 notifies that all communication terminal groups enter group calling intercommunication state in the group in its compass of competency.At this moment, seized the communication terminal of backward channel and can talk, other communication terminals can only be monitored in the group.
Fig. 8 discharges flow chart for group service backward channel under the packet domain networking mode among the present invention, and as shown in Figure 8, under the packet domain networking mode, group service backward channel dispose procedure may further comprise the steps:
Step 801～step 804: under the group calling intercommunication state, the communication terminal that takies backward channel sends backward channel to BSS1 and discharges request (PTT REL), carries group identification among this PTT REL.BSS1 connects the release control messages of receiving to the GSC transmission (A9-PTT REL) by the A9 signaling.GSC sends the PTT REQ that receives by All-Registration Request to GSCS.
After step 805～step 808:GSCS receives PTT REQ, send releasing reverse channel response (PTT REL ACK) to GSC by All Registration Reply.GSC connects the PTT REL ACK that receives to the BSS1 transmission by the A9 signaling.BSS1 notifies that all communication terminal groups enter the group calling idle condition in the group in its compass of competency.At this moment, communication terminal can begin to seize the backward channel flow process in the group.
Fig. 9 discharges flow chart for cluster service group calling under the packet domain networking mode among the present invention, and as shown in Figure 9, under the packet domain networking mode, the cluster service group calling dispose procedure may further comprise the steps:
Step 901～step 904: under the group calling communication state, communication terminal sends group calling to BSS1 and discharges request (Group Call REL), carries communication terminal sign and group identification among this Group Call REL.BSS1 connects the Group Call REL that receives to the GSC transmission by the A9 signaling.GSC sends the GC REL that receives by All-Registration Request to GSCS.Then, then can first execution in step after the 905 pairs of requests communication terminal that discharges group calling carries out authentication, determine whether execution in step 906 according to authenticating result again, or direct execution in step 906.
After step 905:GSCS receives PTT REQ, by with the information interaction of HLR, judge whether the communication terminal that request discharges group calling has the authority that discharges group calling in group, if, execution in step 906; Otherwise GSCS returns the response of group calling release failure to GSC, and notice GSC does not allow the respective communication terminal to initiate group calling release, and GSC does not allow its initiation group calling to discharge by BSS1 notifying communication terminal.
Step 906～step 908:GSCS sends to GSC by All Registration Reply and discharges group calling response (GC REL ACK), notifies GSC to allow the respective communication terminal to initiate group calling and discharges.GSC connects the GC REL ACK that receives to the BSS1 transmission by the A9 signaling, and notice BSS1 allows respective communication terminal initiation group calling to discharge.BSS1 notifies all communication terminal terminating group communications in the interior group of its compass of competency, and removes the respective wireless resource.
Above-mentionedly proposing the clustering service implementation methods of group service system based on the present invention, is not based on the unique clustering service implementation methods of this group service system, is mainly used to strengthen the understanding of the group service system that the present invention is proposed.
Because the core network of mobile communication system is basic identical, therefore the present invention is applicable to mobile communication system arbitrarily, for example, gsm communication system, cdma communication system, time division multiple access (TDMA, Time Division Multiple Access) communication system, and following Wideband Code Division Multiple Access (WCDMA) (W-CDMA, the Wide Code Division Multiple Access) communication system, or the like.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (18)
1, a kind of group service system based on mobile communication system, this system comprises: core network and base station sub-system, it is characterized in that, this system further comprises: the group service Control Server that is used for the control sets group business, be used to realize the group service switching center of group service exchange, wherein
The group service Control Server links to each other with group service switching center, is used to transmit the group service control information;
Group service switching center links to each other with other group service switching centers in the described system, is used to transmit cooperate the information that realizes group service;
Group service switching center links to each other with the base station sub-system of described group service switching center administration, is used to transmit group service information.
2, system according to claim 1 is characterized in that,
Described group service Control Server links to each other with group service switching center and comprises: the group service Control Server links to each other with group service switching center by the interface that transmits the group service control information;
Described group service switching center links to each other with other group service switching centers in the described system and comprises: group service switching center is by being used to realize cooperating between group service switching center the interface of realizing group service, links to each other with other group service switching centers in the described system;
Described group service switching center links to each other with the base station sub-system of described group service switching center administration and comprises: group service switching center links to each other with the base station sub-system that described group service switching center administers by the A interface.
3, system according to claim 2 is characterized in that, described core network comprises mobile switching centre at least.
4, according to claim 2 or 3 described systems, it is characterized in that described core network comprises Home Location Register at least, described group service switching center links to each other with Home Location Register by C interface.
5, system according to claim 1 is characterized in that,
Described group service Control Server links to each other with group service switching center and comprises: group service switching center links to each other with the group service Control Server by Ethernet;
Described group service switching center links to each other with other group service switching centers in the described system and comprises: group service switching center links to each other with other group service switching centers in the described system by Ethernet;
Described group service switching center links to each other with the base station sub-system of described group service switching center administration and comprises: group service switching center links to each other with the base station sub-system that described group service switching center administers by the A8/A9 interface.
6, system according to claim 5 is characterized in that, described core network is a group data service node, and described base station sub-system further comprises: the grouping control module.
7, according to claim 1,2 or 5 described systems, it is characterized in that described core network comprises: Home Location Register, described group service Control Server links to each other with Home Location Register by the interface that is used for authentication and encryption.
8, a kind of clustering service implementation methods of the group service system based on mobile communication system is characterized in that the method includes the steps of:
A, base station sub-system receive the group-calling service request of the group service information that carries of cluster service group calling initiator transmission, send this group-calling service request to group service switching center;
B, group service Control Server receive the group-calling service request that group service switching center sends, and send the group-calling service response that carries cluster service group calling information to described group service switching center;
C, described group service switching center receive the group-calling service response, according to described cluster service group calling information, set up the calling branch of cluster service group calling.
9, method according to claim 8, it is characterized in that, described in the step B before described group service switching center sends the group-calling service response that carries cluster service group calling information, further comprise: according to the group service information of carrying in the group-calling service request, judge whether to allow to set up cluster service group calling, if allow, send the group-calling service response that carries cluster service group calling information to described group service switching center, otherwise, finish current cluster service group calling and set up flow process.
10, method according to claim 9 is characterized in that, described group service information comprises: group service group identification, initiator's sign and initiated area information.
11, method according to claim 10 is characterized in that, judges whether to allow to set up cluster service group calling according to the group service information of carrying in the group-calling service request described in the step B, further may further comprise the steps:
B1, according to the group service group identification in the group service information, judge whether described group service group has legitimacy, if, execution in step B2, otherwise, finish current cluster service group calling and set up flow process;
B2, according to the initiator in group service information sign, judge whether described initiator has legitimacy in described group service group, if, execution in step B3, otherwise, finish current cluster service group calling and set up flow process;
B3, identify according to the initiator in the group service information, judge whether described initiator has the authority of initiating cluster service group calling in described group service group, if, send the group-calling service response that carries cluster service group calling information to described group service switching center, otherwise, finish current cluster service group calling and set up flow process.
12, method according to claim 8, it is characterized in that, the switching center of group service described in the step C sets up the calling branch of cluster service group calling according to cluster service group calling information, comprise: described group service switching center is according to cluster service group calling information, set up the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system foundation and the group service group.
13, method according to claim 8, it is characterized in that, described cluster service group calling information is group service group service zone inventory, and described group service group service zone inventory comprises cell list and at least corresponding to the group service switching center tabulation of described sub-district.
14, method according to claim 13 is characterized in that, the switching center of group service described in the step C sets up the calling branch of cluster service group calling according to cluster service group calling information, further may further comprise the steps:
C1, described group service switching center judge whether and need send the group-calling service indication to other group service switching centers according to the tabulation of group service switching center, if, execution in step C2, otherwise, execution in step C3;
After C2, described group service switching center send the group-calling service indication that carries cell list to the group service switching center corresponding to the tabulation of group service switching center, receive the group-calling service indication corresponding to the group service switching center of group service switching center tabulation, set up calling branch between the group service switching center of transmission group-calling service indication and group service switching center corresponding to the tabulation of group service switching center;
C3, group service switching center be according to cluster service group calling information, sets up the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system foundation and the group service group.
15, method according to claim 14 is characterized in that, the group service switching center that tabulates corresponding to group service switching center described in the step C2 further may further comprise the steps after receiving the group-calling service indication:
C21, provide the roaming number that is used to set up the group service cluster group calling of distribution to the group service switching center that sends the group-calling service indication corresponding to the group service switching center of group service switching center tabulation;
After roaming number is received by the group service switching center of C22, the indication of transmission group-calling service, send the speech channel foundation that carries roaming number to group service switching center and ask corresponding to the tabulation of group service switching center;
C23, after receiving that corresponding to the group service switching center of group service switching center tabulation request is set up in speech channel, determine that roaming number is to be used to set up the group service cluster group calling, the calling branch between the group service switching center of foundation and the indication of transmission group-calling service.
16, method according to claim 8 is characterized in that, further comprises after the described step C:
After D, described group service switching center receive and finish the request of cluster cluster group calling, remove the calling branch of cluster service group calling.
17, method according to claim 16, it is characterized in that, remove the calling branch of cluster service group calling described in the step D, further comprise: remove the calling branch between the base station sub-system with the administration of described group service switching center, and indicate the calling branch between communication terminal in described base station sub-system dismounting and the group service group.
18, method according to claim 16, it is characterized in that, if the calling branch of described cluster service group calling comprises the calling branch between group service switching center, then remove the calling branch of cluster service group calling described in the step D, further may further comprise the steps:
Calling branch between D1, dismounting and other group service switching centers;
Calling branch between the base station sub-system of D2, described other group service switching centers dismountings and its administration, and indicate the calling branch between communication terminal in described base station sub-system dismounting and the group service group.
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| CN03157307.X | 2003-09-17 | ||
| CNB2003101218941A CN100341343C (en) | 2003-09-17 | 2003-12-22 | Group service system based on nobile communication system and method for realing group service |
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| CN100426931C (en) * | 2006-04-13 | 2008-10-15 | 华为技术有限公司 | Voice group call service news processing method |
| CN106658428B (en) * | 2015-10-30 | 2019-12-17 | 北京信威通信技术股份有限公司 | method for terminal to operate cluster group, terminal and core network |
| CN113453211A (en) * | 2021-05-11 | 2021-09-28 | 阳光凯讯(北京)科技有限公司 | Roaming scene service processing system applied to narrow-band cluster communication system |
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| CN1418021A (en) * | 2001-10-30 | 2003-05-14 | 深圳市中兴通讯股份有限公司 | Modile communicatoin system and its group service realizing method |
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| GB2281676A (en) * | 1993-09-07 | 1995-03-08 | Motorola Ltd | System for broadcast and group communications in a communications system |
| WO2002104048A1 (en) * | 2001-06-14 | 2002-12-27 | Nokia Corporation | Group call management mechanism |
| CN1418021A (en) * | 2001-10-30 | 2003-05-14 | 深圳市中兴通讯股份有限公司 | Modile communicatoin system and its group service realizing method |
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