CN103546874A - Method and system for managing call - Google Patents
Method and system for managing call Download PDFInfo
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- CN103546874A CN103546874A CN201210247211.6A CN201210247211A CN103546874A CN 103546874 A CN103546874 A CN 103546874A CN 201210247211 A CN201210247211 A CN 201210247211A CN 103546874 A CN103546874 A CN 103546874A
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Abstract
The invention discloses a method for managing call. The method includes establishing RRC (radio resource control) connection among base stations and one or a plurality of terminals in a group and transmitting call right application requests to a scheduling server; enabling the scheduling server to select call right terminals from the terminals; enabling the scheduling server to carry uplink service for the call right terminals and granting call rights to the call right terminals. The invention further discloses a system for managing the call. The method and the system have the advantage that the call rights of LTE (long term evolution) cluster systems can be correctly and efficiently managed.
Description
Technical field
The present invention relates to mobile communication technology, refer to especially a kind of implementation method and system of call management.
Background technology
Mobile communication technology developed into for the 4th generation, and wherein trunking communication also becomes a kind of indispensable communication traffic day by day.Trunking communication refers to a kind of dispatching communication mode of special use, comprise special-purpose commander and dispatching communication, its system channel can be shared by all users of system, there is the multipurpose of automatic selective channel, resource-sharing, dynamical feature, cluster user can add calling simultaneously, and call is with simplex mode work.
Second generation group system is narrow-band digital trunked communication system, system support voice is communicated by letter with low speed data (the highest 28.8kbps), representative system is the (ETSI of ETSI, European Telecommunications Standards Institute) the land trunked radio (TETRA of definition, Terrestrial Trunked Radio) system, Integrated Digital Enhanced Network (the IDEN of U.S. Motorola, Integrated Digital Enhanced Networks) system, open trunking architecture (the GoTa of ZTE Co., Ltd based on CDMA1X exploitation, Global Open Trunking Architecture) system and the GT800 system based on GSM exploitation.
In sum, existing digital clustering communication system all realizes based on second generation mobile communication system (2G) or 3-G (Generation Three mobile communication system) (3G).Along with the develop rapidly of mobile Internet and the Large scale construction in global radio city, the broadband development trend that becomes whole radio communication.Tradesman carries out in the process of command scheduling in application cluster communication system, not only requires " hearing ", also requires " visible ".Correspondingly, trunked communication system is technically also by future development broadband to the variation of system IPization, business, data, terminal multimode.From concrete application point, be mainly reflected in high-speed data, video and be implemented in the multiple application on this basis, comprise the aspects such as mobile office, multimedia cluster scheduling, video monitoring, City Emergency Linkage Control System.Meanwhile, trunked communication system also should have larger channel capacity, the higher availability of frequency spectrum, better transmission performance and low-cost, scalable, the configurable IP full wireless multi-media network framework of employing, and can realize smooth evolution.
Group-calling service is the basic service that digital clustering communication system provides.In a group calling, can a plurality of users participate in, but synchronization only allows user's speech, other users can only listen simultaneously.Therefore, right of speech is the valuable source in group calling, and talker has right of speech, and in group calling communication process, talker can release speech right, thereby hearer can apply for that right of speech becomes new talker.Owing to there being a plurality of users in group, therefore exist a plurality of users to apply for the scene of right of speech simultaneously, so in group system correct, right of speech management is efficiently most important, but in prior art, also do not provide a kind of technical scheme can be correctly, efficiently the right of speech of LTE group system is managed.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of implementation method and system of call management, to realize correctly, efficiently the right of speech of LTE group system to be managed.
For achieving the above object, technical scheme of the present invention is achieved in that
The implementation method that the invention discloses a kind of call management, the method comprises:
After one or more terminals in group and base station are set up radio resource control RRC and are connected, to the request of dispatch server application sending the right words; Dispatch server is selected right of speech terminal from described one or more terminals;
Dispatch server is set up the uplink service carrying of described right of speech terminal, and authorizes right of speech to described terminal.
Described dispatch server is set up the uplink service carrying of described right of speech terminal, comprising:
Described dispatch server sends carrying to described base station and sets up request message, and wherein carrying dispatch server is the first Tunnel Identifier ID of the uplink service carrying distribution of described right of speech terminal;
Described base station recording carrying is set up the first tunnel ID carrying in request message, for right of speech terminal is set up uplink service carrying, and notifies right of speech terminal reprovision RRC to connect;
Described base station receives that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying set up response message to dispatch server, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Dispatch server recording carrying is set up the second tunnel ID carrying in response message, completes the foundation of the uplink service carrying of right of speech terminal.
To described right of speech terminal, authorize right of speech, comprising:
Dispatch server is to right of speech terminal to transmit call authorization messages;
Right of speech terminal receives after right of speech authorization messages, to dispatch server, responds right of speech authorization response message, and starts speech.
Described terminal is set up RRC with base station and is connected, and comprising:
Terminal sends RRC connection and sets up request message to base station;
Base station is terminal distribution ascending resource, and connects and set up notification message to terminal transmission RRC, and described RRC connection has been set up.
Described to the request of dispatch server application sending the right words, comprising:
After RRC has connected, terminal on described ascending resource to base station application sending the right words request message;
Base station is transmitted to described dispatch server by described the right to apply for words request message;
Described dispatch server is selected right of speech terminal from described one or more terminals, comprising:
Described dispatch server receives after the described the right to apply for words request message of one or more described terminals in group, selects terminal that right of speech priority is the highest as right of speech terminal from described one or more terminals.
To described right of speech terminal, authorize after right of speech, the method also comprises:
Dispatch server is all terminal to transmit call prompting messages of other in group except right of speech terminal by base station, and prompting right of speech is occupied.
To described right of speech terminal, authorize after right of speech, the method also comprises:
Dispatch server is to the terminal to transmit call queuing message of other application sending the right words request messages except right of speech terminal, and the RRC that indicates base station to discharge the terminal of other application sending the right words request messages except right of speech terminal connects.
The method also comprises: described right of speech terminal to apply right of speech discharges, for:
Described right of speech terminal sends right of speech releasing request message to dispatch server;
Described dispatch server returns to right of speech and discharges response message, release speech right.
The method also comprises: described dispatch server discharges the right of speech of described right of speech terminal, for:
Dispatch server is to described right of speech terminal to transmit call releasing request message;
Described right of speech terminal is returned to right of speech and is discharged response message, release speech right.
The method also comprises: described base station discharges the right of speech of described right of speech terminal, for:
Base station sends the uplink service carrying releasing request message for right of speech terminal to dispatch server;
Dispatch server receives after described uplink service carrying releasing request message, release speech right.
After described release speech right, the method also comprises:
Dispatch server is by base station to all terminal to transmit call prompting messages in group, and prompting right of speech is idle.
After described release speech right, the method also comprises:
The described uplink service carrying that dispatch server informing base station discharges described right of speech terminal is connected with described RRC;
Base station notifies described right of speech terminal to discharge described RRC connection, discharges the described uplink service carrying of described right of speech terminal simultaneously; After described uplink service carrying has discharged, the Release complete of uplink service carrying is returned in base station to dispatch server.
The method also comprises: right of speech priority is seized right of speech higher than the terminal of described right of speech terminal, for:
Dispatch server receives after the right to apply for words request, and the right of speech priority of terminal of determining application sending the right words request is during higher than described right of speech terminal, using described right of speech priority higher than the terminal of described right of speech terminal as new right of speech terminal;
Dispatch server discharges the right of speech of described right of speech terminal, and the uplink service carrying that informing base station discharges described right of speech terminal is connected with RRC, and meanwhile, the uplink service that dispatch server is set up described new right of speech terminal carries, and authorizes right of speech to described new right of speech terminal.
The present invention also provides a kind of system that realizes of call management, comprising: terminal, base station and dispatch server; Wherein:
Described terminal and described base station, connect for setting up RRC, and send in right of speech and please ask;
Described dispatch server for after receiving described the right to apply for words request, is selected right of speech terminal from one or more described terminals; Also for setting up the uplink service of described right of speech terminal, carry, and authorize right of speech to described right of speech terminal.
Described dispatch server, also sets up request message for sending carrying to described base station, and wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of described right of speech terminal;
Described base station, also sets up for recording carrying the first tunnel ID that request message carries, and for described right of speech terminal is set up uplink service carrying, and notifies described right of speech terminal reprovision RRC to connect;
Described base station, also, for receiving that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying to dispatch server and sets up response message, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Described dispatch server, also sets up for recording carrying the second tunnel ID that response message carries, and completes the foundation of the uplink service carrying of right of speech terminal.
Described dispatch server, also for to described right of speech terminal to transmit call authorization messages;
Described right of speech terminal, also for receiving after right of speech authorization messages, responds right of speech authorization response message to dispatch server, and starts speech.
Described terminal, also sets up request message for send RRC connection to described base station;
Described base station, is used to described terminal distribution ascending resource, and connects and set up notification message to described terminal transmission RRC;
Described terminal, also for after setting up RRC and having connected, on described ascending resource to described base station application sending the right words request message;
Described base station, also for being transmitted to described dispatch server by described the right to apply for words request message;
Described dispatch server also for receiving after the described the right to apply for words request message of one or more described terminals in group, selects described terminal that right of speech priority is the highest as right of speech terminal from one or more described terminals.
Described right of speech terminal, also for applying for that right of speech discharges.
Described dispatch server, also for discharging the right of speech of described right of speech terminal.
Described base station, also for discharging the right of speech of described right of speech terminal.
Right of speech priority is higher than the described terminal of described right of speech terminal, also for seizing right of speech.
The present invention plants implementation method and the system of call management: when dispatch server receives the right to apply for words request of one or more terminals in group, select terminal that right of speech priority is the highest as right of speech terminal from one or more terminals; Dispatch server is set up the uplink service carrying of right of speech terminal, and authorizes right of speech to right of speech terminal.Dispatch server carries out unified management to the right of speech of all terminals in group, please and discharge by dispatch server is unified and control in right of speech, has guaranteed correctness and the high efficiency of LTE group system right of speech management.
Accompanying drawing explanation
Fig. 1 a is the method schematic diagram one that the present invention realizes call management in LTE group system;
Fig. 1 b is the method schematic diagram two that the present invention realizes call management in LTE group system;
Fig. 2 is the schematic flow sheet of terminal speak right application;
Fig. 3 is the initiatively schematic flow sheet of release speech right of terminal;
Fig. 4 is the schematic flow sheet that dispatch server forces to discharge terminal speak right;
Fig. 5 is the schematic flow sheet that terminal speak right is forced to discharge in base station;
Fig. 6 is the schematic flow sheet that right of speech is seized;
Fig. 7 is the Organization Chart of LTE cluster.
Embodiment
The method that the present invention realizes call management in LTE group system as shown in Figure 1a, comprising:
After one or more terminals in step 101， group and base station are set up RRC and are connected, to the request of dispatch server application sending the right words; Dispatch server is selected right of speech terminal from one or more terminals.
Wherein, so-called group refers to: add the set of a plurality of terminals of some group services (for example trunked call service, group-calling service), the member of each terminal Wei Gai group.
Concrete, the process that Radio Resource control (RRC, Radio Resource Control) connection is set up in terminal and base station comprises:
Terminal sends RRC connection and sets up request message to base station;
Base station is terminal distribution ascending resource, and connects and set up notification message to terminal transmission RRC.
Terminal is set up after RRC connected, also need to be to base station application sending the right words request message on ascending resource; Base station is transmitted to dispatch server by the right to apply for words request message.
After the right to apply for words request message of dispatch server one or more terminals in receiving group, therefrom select terminal that right of speech priority is the highest as right of speech terminal.
Step 102, dispatch server is set up the uplink service carrying of right of speech terminal, and authorizes right of speech to right of speech terminal.
Wherein, the process that dispatch server is set up the uplink service carrying of right of speech terminal comprises:
Dispatch server sends carrying and sets up request message to base station, wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of right of speech terminal;
Base station recording carrying is set up the first tunnel ID carrying in request message, for right of speech terminal is set up uplink service carrying, and notifies right of speech terminal reprovision RRC to connect;
Base station receives that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying set up response message to dispatch server, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Dispatch server recording carrying is set up the second tunnel ID carrying in response message, completes the foundation of the uplink service carrying of right of speech terminal.
The process of authorizing right of speech to right of speech terminal comprises:
Dispatch server is to right of speech terminal to transmit call authorization messages;
Right of speech terminal receives after right of speech authorization messages, to dispatch server, responds right of speech authorization response message, and starts speech.
Preferably, to right of speech terminal, authorize after right of speech, the inventive method also comprises:
Dispatch server is all terminal to transmit call prompting messages of other in group except right of speech terminal by base station, and prompting right of speech is occupied.And,
Dispatch server is to the terminal to transmit call queuing message of other application sending the right words requests except right of speech terminal, and the RRC that indicates base station to discharge the terminal of other application sending the right words requests except right of speech terminal connects.
As Fig. 1 b, the method that realizes call management in LTE group system of the present invention also comprises:
Step 103, right of speech terminal to apply right of speech discharges.
Step 104, the right of speech of dispatch server release speech right terminal.
Step 105, the right of speech of base station release speech right terminal.
Step 106, right of speech priority is seized the right of speech of right of speech terminal higher than the terminal of right of speech terminal.
It should be noted that step 103,104,105,106 execution order in no particular order.
Wherein, the specific implementation of step 103 is:
Right of speech terminal sends right of speech releasing request message to dispatch server;
Dispatch server returns to right of speech and discharges response message, release speech right.
The specific implementation of step 104 is:
Dispatch server is to right of speech terminal to transmit call releasing request message;
Right of speech terminal is returned to right of speech and is discharged response message, release speech right.
The specific implementation of step 105 is:
Base station sends the uplink service carrying releasing request message for right of speech terminal to dispatch server;
Dispatch server receives after uplink service carrying releasing request message, release speech right.
Preferably, in step 103,104,105, after release speech right, method of the present invention also comprises:
Dispatch server is by base station to all terminal to transmit call prompting messages in group, and prompting right of speech is idle; And the uplink service carrying of dispatch server informing base station release speech right terminal is connected with RRC, base station notice right of speech terminal discharges RRC and connects, the uplink service of described right of speech terminal carrying simultaneously; After uplink service carrying has discharged, the Release complete of uplink service carrying is returned in base station to dispatch server.
Being embodied as of step 106:
Dispatch server receives after the right to apply for words request, determines that the right of speech priority of terminal of application sending the right words request is higher than right of speech terminal, and using right of speech priority higher than the terminal of right of speech terminal as new right of speech terminal;
The right of speech of dispatch server release speech right terminal, and the uplink service of informing base station release speech right terminal carrying is connected with RRC, meanwhile, the uplink service that dispatch server is set up new right of speech terminal carries, and authorizes right of speech to new right of speech terminal.
Below by specific embodiment, such scheme of the present invention is described.
Figure 2 shows that the schematic flow sheet of terminal speak right application, after trunked call is successfully set up, if current unmanned speech in group, right of speech is idle, and now all use can be initiated the right to apply for words by terminal per family in group, and detailed process comprises:
Step 201, terminal B presses PTT key application right of speech, and terminal B sends RRC connection to eNodeB and sets up request message.
Step 202, eNodeB receives that after RRC connection request message, eNodeB guarantees uplink synchronous by time slot adjustment, distribute ascending resource simultaneously, to terminal B, send RRC connection and set up notification message, notification terminal B sets up RRC and connects, and carries the ascending resource of distribution in notification message.
Step 203, after RRC connection has been set up, terminal B is to eNodeB application sending the right words request message on the ascending resource having distributed, and preferably, this message can adopt NAS message, certainly can also adopt the conventional message between other-end and eNodeB;
Preferably, according to 3GPP standard, this NAS message can send to eNodeB by MSG3 message.
Step 204, the right to apply for words request message of eNodeB transmitting terminal B is to dispatch server.
In this step, the NAS message of the right to apply for words request message is carried in T1 message.
Step 205～step 208 is the process of terminal A initiation the right to apply for words request, and the process of initiating the right to apply for words request with step 201～step 204 terminal B is identical, can carry out simultaneously, repeats no more herein.
Step 209, dispatch server is received after the right to apply for words request message of terminal B and terminal A, according to information such as priority, compares decision-making, if the right of speech priority of terminal B is high, determines right of speech granting terminal B (right of speech terminal) so.
Step 210, while determining right of speech granting terminal B, sets up the uplink service carrying of terminal B.
It is pointed out that in application during right of speech, no matter whether the uplink service carrying of terminal B exists, and all needs to re-establish the uplink service carrying of terminal B.Concrete: dispatch server sends carrying to eNodeB and sets up request message, wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of terminal B, meanwhile, the talking state machine of dispatch server transfers right of speech pre-authorization state to, and starts right of speech pre-authorization timer.
If right of speech pre-authorization timer then after, dispatch server does not receive that the carrying that eNodeB returns sets up response message, carrying is set up unsuccessfully, dispatch server notification terminal B release speech right, flow process finishes.
Step 211, eNodeB recording carrying is set up the first tunnel ID carrying in request message, and for terminal B sets up uplink service carrying, and notification terminal B reprovision RRC connects.
Step 212, notice eNodeB after the RRC connection reprovision of terminal B completes.
Step 213, eNodeB receives that the RRC of terminal B connects reprovision and completes after message, to dispatch server, send carrying and set up response message, wherein carrying eNodeB is the second tunnel ID of the uplink service carrying distribution of terminal B, and the second tunnel ID is corresponding with the first tunnel ID that dispatch server distributes.
Step 214, dispatch server receives that the carrying of eNodeB sets up after response message, records eNodeB and be the second tunnel ID that the uplink service carrying of terminal B distributes, the uplink service carrying of terminal B has been set up.Dispatch server is closed right of speech pre-authorization timer, to terminal B, sends right of speech authorization messages, and talking state machine transfers right of speech licensing status to simultaneously, starts right of speech mandate timer.
Preferably, right of speech authorization messages can adopt NAS message; This NAS message is carried in T1 message.
If right of speech mandate timer then after, dispatch server is not received the right of speech authorization response message that terminal B returns, dispatch server notification terminal B release speech right, flow process finishes.
Step 215, terminal B responds right of speech authorization response message to dispatch server, and user loquiturs by terminal B simultaneously.
Preferably, right of speech authorization response message can adopt NAS message; This NAS message is carried in T1 message.
Step 216, dispatch server is received after the right of speech authorization response message of terminal B, stops right of speech mandate timer, to eNodeB, sends right of speech prompting message; ENodeB not dialogue right prompting message processes, and is directly transmitted to other all group members except terminal B (being terminal A in this embodiment), points out the right of speech of other all group members groups occupied, and the user of terminal B talks.
Preferably, right of speech prompting message can adopt NAS message; This NAS message is carried in T1 message.
User for fear of new access cannot receive right of speech prompting message, and dispatch server can carry in T1 message retransmits indication, and indication eNodeB regularly retransmits right of speech prompting message to other all group members.
Step 217, dispatch server sends talking right queuing message, notification terminal A talking right queuing to terminal A.
Preferably, talking right queuing message can adopt NAS message; This NAS message is carried in T1 message.
In order to economize on resources, dispatch server can carry the indication of RRC Connection Release in T1 message, and the RRC that indication eNodeB discharges terminal A connects.It should be noted that: this step is judged words in step 209 step and advised after granting terminal B, carries out immediately, carries out with the right of speech mandate of terminal B simultaneously.
Figure 3 shows that the initiatively schematic flow sheet of release speech right of terminal, after trunked call is successfully set up, certain group member (terminal A) takies right of speech, and now terminal A (right of speech terminal) can discharge by unclamping PTT key triggering right of speech, and detailed process comprises:
Step 301, terminal A sends right of speech releasing request message to dispatch server.
Preferably, right of speech releasing request message can adopt NAS message; This NAS message is carried in T1 message.
Step 302, dispatch server is received after the right of speech releasing request message of terminal A, after verification terminal A is talker, sends right of speech discharge response message to terminal A, meanwhile, the talking state machine of dispatch server transfers right of speech idle condition to.
Preferably, right of speech release response message can adopt NAS message; This NAS message is carried in T1 message.
Step 303, in terminal A release speech right Hou， group, right of speech is idle, and now, dispatch server sends right of speech prompting message to eNodeB; ENodeB not dialogue right prompting message processes, and is directly transmitted to all members of group (terminal A and B), and prompting right of speech is idle.
Preferably, right of speech prompting message can adopt NAS message; This NAS message is carried in T1 message.
User for fear of new access cannot receive right of speech prompting message, and dispatch server can carry in T1 message retransmits indication, and indication eNodeB regularly retransmits right of speech prompting message to other all group members.
Step 304, the uplink service carrying that dispatch server notice eNodeB discharges terminal A is connected with RRC.
Step 305, eNodeB notification terminal A discharges RRC and connects.
Step 306, eNodeB releases after the uplink service carrying of terminal A, sends the Release complete of uplink service carrying.Dispatch server is received after the Release complete of uplink service carrying, removes the related resource of setting up into this uplink service carrying.
Wherein, the uplink service carrying of terminal A release RRC connection and eNodeB release terminal A can be carried out simultaneously.
Figure 4 shows that dispatch server pressure discharges the schematic flow sheet of terminal speak right, after trunked call is successfully set up, certain group member (terminal A) takies right of speech, and now dispatch server can force to discharge the right of speech of terminal A (right of speech terminal), and detailed process is as follows:
Step 401, dispatch server detects after the right of speech that need to discharge terminal A, to terminal A, sends right of speech releasing request message, and meanwhile, the talking state machine of dispatch server transfers right of speech release condition to, and starts right of speech release timer.
Preferably, right of speech releasing request message can adopt NAS message; This NAS message is carried in T1 message.
If right of speech release timer do not receive the right of speech of terminal A and discharges response message then, think that the right of speech of terminal A has discharged complete, jump directly to step 403.
Step 402, terminal A receives after the right of speech releasing request message of dispatch server, closes microphone, stops forwarding voice, sends right of speech discharge response message to dispatch server.
Preferably, right of speech release response message can adopt NAS message; This NAS message is carried in T1 message.
Step 403, dispatch server is closed right of speech release timer, and talking state machine transfers right of speech idle condition to simultaneously, and sends right of speech prompting message to eNodeB; ENodeB not dialogue right prompting message processes, and is directly transmitted to all members of group (terminal A and B), and prompting right of speech is idle.
Preferably, right of speech prompting message can adopt NAS message; This NAS message is carried in T1 message.
User for fear of new access cannot receive right of speech prompting message, and dispatch server can carry in T1 message retransmits indication, and indication eNodeB regularly retransmits right of speech prompting message to other all group members.
Step 404, the uplink service carrying that dispatch server notice eNodeB discharges terminal A is connected with RRC.
Step 405, eNodeB notification terminal A discharges RRC and connects.
Step 406, eNodeB releases after the uplink service carrying of terminal A, sends the Release complete of uplink service carrying.Dispatch server is received after the Release complete of uplink service carrying, removes the related resource of setting up into this uplink service carrying.
Wherein, the uplink service carrying of terminal A release RRC connection and eNodeB release terminal A can be carried out simultaneously.
Figure 5 shows that eNodeB forces to discharge the schematic flow sheet of terminal speak right, after trunked call is successfully set up, certain group member (terminal A) takies right of speech, if eNodeB detect link abnormal after, the right of speech that can force to discharge terminal A (right of speech terminal), detailed process is as follows:
Step 501, eNodeB detect the link of terminal A abnormal after, to dispatch server, send the uplink service carrying releasing request message for terminal A, be carried in T1 message.
Step 502, dispatch server is received after uplink service carrying releasing request message, forces to regain the right of speech of terminal A, talking state machine transfers right of speech idle condition to simultaneously, and sends right of speech prompting message to eNodeB; ENodeB not dialogue right prompting message processes, and is directly transmitted to all members of group (terminal A and B), and prompting right of speech is idle.
Preferably, right of speech prompting message can adopt NAS message; This NAS message is carried in T1 message.
User for fear of new access cannot receive right of speech prompting message, and dispatch server can carry in T1 message retransmits indication, and indication eNodeB regularly retransmits right of speech prompting message to other all group members.
Step 503, the uplink service carrying that dispatch server notice eNodeB discharges terminal A is connected with RRC.
Step 504, eNodeB notification terminal A discharges RRC and connects.
Step 505, eNodeB releases after the uplink service carrying of terminal A, sends the Release complete of uplink service carrying.Dispatch server is received after the Release complete of uplink service carrying, removes the related resource of setting up into this uplink service carrying.
Wherein, the uplink service carrying of terminal A release RRC connection and eNodeB release terminal A can be carried out simultaneously.
Figure 6 shows that the schematic flow sheet that right of speech is seized, after trunked call is successfully set up, certain group member (terminal A) takies right of speech, if the right of speech priority of terminal B is higher than terminal A, terminal B (new right of speech terminal) can seize the right of speech of terminal A (right of speech terminal), and detailed process is as follows:
Step 601, terminal B presses PTT key application right of speech, and terminal B sends RRC connection to eNodeB and sets up request message.
Step 602, eNodeB receives that after RRC connection request message, eNodeB guarantees uplink synchronous by time slot adjustment, distribute ascending resource simultaneously, to terminal B, send RRC connection and set up notification message, notification terminal B sets up RRC and connects, and carries the ascending resource of distribution in notification message.
Step 603, after RRC connection has been set up, terminal B is to eNodeB application sending the right words request message on the ascending resource having distributed, and preferably, this message can adopt NAS message, certainly can also adopt the conventional message between other-end and eNodeB;
Preferably, according to 3GPP standard, this NAS message can send to eNodeB by MSG3 message.
Step 604, the right to apply for words request message of eNodeB transmitting terminal B is to dispatch server.
In this step, the NAS message of the right to apply for words request message is carried in T1 message.
Step 605, dispatch server is received after terminal B the right to apply for words request message, according to information such as priority, compares decision-making, determines that the right of speech priority of terminal B is higher than terminal A, needs to force to discharge the right of speech of terminal A, and determines right of speech granting terminal B.So, dispatch server sends right of speech releasing request message to terminal A, and meanwhile, the talking state machine of dispatch server transfers right of speech release condition to, and starts right of speech release timer.
Preferably, right of speech releasing request message can adopt NAS message; This NAS message is carried in T1 message.
If right of speech release timer do not receive the right of speech of terminal A and discharges response message then, think that the right of speech of terminal A has discharged complete, jump directly to step 607.
Step 606, terminal A receives after the right of speech releasing request message of dispatch server, closes microphone, stops forwarding voice, sends right of speech discharge response message to dispatch server.
Step 607, dispatch server is closed right of speech release timer, and talking state machine transfers right of speech idle condition to simultaneously.The uplink service carrying that dispatch server notice eNodeB is released to terminal A foundation is connected with RRC.
Step 608, eNodeB notification terminal A discharges RRC and connects.
Step 609, eNodeB releases after the uplink service carrying of terminal A, sends the Release complete of uplink service carrying.Dispatch server is received after the Release complete of uplink service carrying, removes the related resource of setting up into this uplink service carrying.
Wherein, the uplink service carrying of terminal A release RRC connection and eNodeB release terminal A can be carried out simultaneously.
Step 610, while determining right of speech granting terminal B, sets up the uplink service carrying of terminal B.
Dispatch server checks out that terminal B is waiting right of speech to be granted, and really directional terminals B authorizes.It is pointed out that in application during right of speech, no matter whether the uplink service carrying of terminal B exists, and all needs to re-establish the uplink service carrying of terminal B.Concrete: dispatch server sends carrying to eNodeB and sets up request message, wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of terminal B, meanwhile, the talking state machine of dispatch server transfers right of speech pre-authorization state to, and starts right of speech pre-authorization timer.
Illustrate: this step can be carried out with step 607 simultaneously.If right of speech pre-authorization timer does not receive then that the carrying that eNodeB returns sets up response message, carrying is set up unsuccessfully, dispatch server notification terminal B release speech right, and flow process finishes.
Step 611, eNodeB recording carrying is set up the first tunnel ID carrying in request message, and for terminal B sets up uplink service carrying, and notification terminal B reprovision RRC connects.
Step 612, notice eNodeB after the RRC connection reprovision of terminal B completes.
Step 613, NodeB receives that the RRC of terminal B connects reprovision and completes after message, to dispatch server, send carrying and set up response message, wherein carrying eNodeB is the second tunnel ID of the uplink service carrying distribution of terminal B, and the second tunnel ID is corresponding with the first tunnel ID that dispatch server distributes.
Step 614, dispatch server receives that the carrying of eNodeB sets up after response message, recording eNodeB is the second tunnel ID of the uplink service carrying distribution of terminal B, close right of speech pre-authorization timer, to terminal B, send right of speech authorization messages, talking state machine transfers right of speech licensing status to simultaneously, starts right of speech mandate timer.
Preferably, right of speech authorization messages can adopt NAS message; This NAS message is carried in T1 message.
If right of speech mandate timer then after, dispatch server is not received the right of speech authorization response message that terminal B returns, dispatch server notification terminal B release speech right, flow process finishes.
Step 615, terminal B responds right of speech authorization response message to dispatch server, and user loquiturs by terminal B simultaneously.
Preferably, right of speech authorization response message can adopt NAS message; This NAS message is carried in T1 message.
Step 616, dispatch server is received after the right of speech authorization response message of terminal B, stops right of speech mandate timer, to eNodeB, sends right of speech prompting message; ENodeB not dialogue right prompting message processes, and is directly transmitted to other all group members except terminal B, points out the right of speech of other all group members groups occupied, and the user of terminal B talks.
Preferably, right of speech prompting message can adopt NAS message; This NAS message is carried in T1 message.
User for fear of new access cannot receive right of speech prompting message, and dispatch server can carry in T1 message retransmits indication, and indication eNodeB regularly retransmits right of speech prompting message to other all group members.
In the above-described embodiments, the use of timer has greatly reduced the time delay of the right to apply for words, makes user can obtain fast right of speech.
The method that realizes call management in above-mentioned LTE group system of the present invention, goes for framework as shown in Figure 7.
In this framework:
Terminal: possess the terminal equipment of group service function, also possess the multiple business abilities such as interconnect call business, Packet data service, short message service, can roam in system whole-network coverage simultaneously.
Broadband wireless access subsystem: formed by several eNodeB, in order to complete the access function of terminal, and use type of service to distribute corresponding subsystem processes according to user.
Scheduler subsystem: in order to complete the control and management function to termination set group business in coverage, be the control centre of group service.
Scheduler subsystem comprises: dispatch server, schedule register and dispatching desk, wherein:
Dispatch server, realizes calling control and the right of speech management of trunked call.
Schedule register, log-on message and the positional information of preservation cluster user and group, realize the authentication of cluster user, mandate and billing function, and position is upgraded and group management function.
Dispatching desk, safeguards the session of each dispatching desk, turnkey console, realizes turnkey console and dispatching desk administering and maintaining colony dispatching.
In order to realize said method, the present invention also provides a kind of system that realizes of call management, comprising: terminal, base station and dispatch server; Wherein:
Terminal and base station, connect for setting up RRC, and application sending the right words request;
Dispatch server for after receiving the right to apply for words request, is selected right of speech terminal from one or more terminals; Also for setting up the uplink service of right of speech terminal, carry, and authorize right of speech to right of speech terminal.
Preferably, dispatch server, also sets up request message for send carrying to base station, and wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of right of speech terminal;
Base station, also sets up for recording carrying the first tunnel ID that request message carries, and for right of speech terminal is set up uplink service carrying, and notifies right of speech terminal reprovision RRC to connect;
Base station, also, for receiving that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying to dispatch server and sets up response message, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Dispatch server, also sets up for recording carrying the second tunnel ID that response message carries, and completes the foundation of the uplink service carrying of right of speech terminal.
Dispatch server, also for to right of speech terminal to transmit call authorization messages;
Right of speech terminal, also for receiving after right of speech authorization messages, responds right of speech authorization response message to dispatch server, and starts speech.
Terminal, also sets up request message for send RRC connection to base station;
Base station, is used to terminal distribution ascending resource, and connects and set up notification message to terminal transmission RRC;
Terminal, also for after setting up RRC and having connected, on ascending resource to base station application sending the right words request message;
Base station, also for being transmitted to dispatch server by the right to apply for words request message;
Dispatch server also for receiving after the right to apply for words request message of one or more terminals in group, selects terminal that right of speech priority is the highest as right of speech terminal from one or more terminals.
Right of speech terminal, also for applying for that right of speech discharges.
Dispatch server, also for the right of speech of release speech right terminal.
Base station, also for the right of speech of release speech right terminal.
Right of speech priority is higher than the terminal of right of speech terminal, also for seizing right of speech.
Here, the specific implementation that right of speech discharges and right of speech is seized, respectively with described in the embodiment shown in above-mentioned Fig. 3,4,5,6, repeats no more herein.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (21)
1. an implementation method for call management, is characterized in that, the method comprises:
After one or more terminals in group and base station are set up radio resource control RRC and are connected, to the request of dispatch server application sending the right words; Dispatch server is selected right of speech terminal from described one or more terminals;
Dispatch server is set up the uplink service carrying of described right of speech terminal, and authorizes right of speech to described terminal.
2. the implementation method of call management according to claim 1, is characterized in that, described dispatch server is set up the uplink service carrying of described right of speech terminal, comprising:
Described dispatch server sends carrying to described base station and sets up request message, and wherein carrying dispatch server is the first Tunnel Identifier ID of the uplink service carrying distribution of described right of speech terminal;
Described base station recording carrying is set up the first tunnel ID carrying in request message, for right of speech terminal is set up uplink service carrying, and notifies right of speech terminal reprovision RRC to connect;
Described base station receives that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying set up response message to dispatch server, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Dispatch server recording carrying is set up the second tunnel ID carrying in response message, completes the foundation of the uplink service carrying of right of speech terminal.
3. the implementation method of call management according to claim 2, is characterized in that, to described right of speech terminal, authorizes right of speech, comprising:
Dispatch server is to right of speech terminal to transmit call authorization messages;
Right of speech terminal receives after right of speech authorization messages, to dispatch server, responds right of speech authorization response message, and starts speech.
4. the implementation method of call management according to claim 1, is characterized in that, described terminal is set up RRC with base station and is connected, and comprising:
Terminal sends RRC connection and sets up request message to base station;
Base station is terminal distribution ascending resource, and connects and set up notification message to terminal transmission RRC, and described RRC connection has been set up.
5. the implementation method of call management according to claim 4, is characterized in that, described to the request of dispatch server application sending the right words, comprising:
After RRC has connected, terminal on described ascending resource to base station application sending the right words request message;
Base station is transmitted to described dispatch server by described the right to apply for words request message;
Described dispatch server is selected right of speech terminal from described one or more terminals, comprising:
Described dispatch server receives after the described the right to apply for words request message of one or more described terminals in group, selects terminal that right of speech priority is the highest as right of speech terminal from described one or more terminals.
6. the implementation method of call management according to claim 3, is characterized in that, to described right of speech terminal, authorize after right of speech, the method also comprises:
Dispatch server is all terminal to transmit call prompting messages of other in group except right of speech terminal by base station, and prompting right of speech is occupied.
7. the implementation method of call management according to claim 3, is characterized in that, to described right of speech terminal, authorize after right of speech, the method also comprises:
Dispatch server is to the terminal to transmit call queuing message of other application sending the right words request messages except right of speech terminal, and the RRC that indicates base station to discharge the terminal of other application sending the right words request messages except right of speech terminal connects.
8. the implementation method of call management according to claim 1, is characterized in that, the method also comprises: described right of speech terminal to apply right of speech discharges, for:
Described right of speech terminal sends right of speech releasing request message to dispatch server;
Described dispatch server returns to right of speech and discharges response message, release speech right.
9. the implementation method of call management according to claim 1, is characterized in that, the method also comprises: described dispatch server discharges the right of speech of described right of speech terminal, for:
Dispatch server is to described right of speech terminal to transmit call releasing request message;
Described right of speech terminal is returned to right of speech and is discharged response message, release speech right.
10. the implementation method of call management according to claim 1, is characterized in that, the method also comprises: described base station discharges the right of speech of described right of speech terminal, for:
Base station sends the uplink service carrying releasing request message for right of speech terminal to dispatch server;
Dispatch server receives after described uplink service carrying releasing request message, release speech right.
Described in 11. according to Claim 8,9 or 10, the implementation method of call management, is characterized in that, after described release speech right, the method also comprises:
Dispatch server is by base station to all terminal to transmit call prompting messages in group, and prompting right of speech is idle.
12. according to the implementation method of call management described in claim 11, it is characterized in that, after described release speech right, the method also comprises:
The described uplink service carrying that dispatch server informing base station discharges described right of speech terminal is connected with described RRC;
Base station notifies described right of speech terminal to discharge described RRC connection, discharges the described uplink service carrying of described right of speech terminal simultaneously; After described uplink service carrying has discharged, the Release complete of uplink service carrying is returned in base station to dispatch server.
13. according to the implementation method of the arbitrary described call management of claim 1 to 7, it is characterized in that, the method also comprises: right of speech priority is seized right of speech higher than the terminal of described right of speech terminal, for:
Dispatch server receives after the right to apply for words request, and the right of speech priority of terminal of determining application sending the right words request is during higher than described right of speech terminal, using described right of speech priority higher than the terminal of described right of speech terminal as new right of speech terminal;
Dispatch server discharges the right of speech of described right of speech terminal, and the uplink service carrying that informing base station discharges described right of speech terminal is connected with RRC, and meanwhile, the uplink service that dispatch server is set up described new right of speech terminal carries, and authorizes right of speech to described new right of speech terminal.
The system that realizes of 14. 1 kinds of call managements, is characterized in that, comprising: terminal, base station and dispatch server; Wherein:
Described terminal and described base station, connect for setting up RRC, and application sending the right words request;
Described dispatch server for after receiving described the right to apply for words request, is selected right of speech terminal from one or more described terminals; Also for setting up the uplink service of described right of speech terminal, carry, and authorize right of speech to described right of speech terminal.
15. according to the system that realizes of call management described in claim 14, it is characterized in that,
Described dispatch server, also sets up request message for sending carrying to described base station, and wherein carrying dispatch server is the first tunnel ID of the uplink service carrying distribution of described right of speech terminal;
Described base station, also sets up for recording carrying the first tunnel ID that request message carries, and for described right of speech terminal is set up uplink service carrying, and notifies described right of speech terminal reprovision RRC to connect;
Described base station, also, for receiving that the RRC of right of speech terminal connects reprovision and completes after message, sends carrying to dispatch server and sets up response message, and wherein carrying base station is the second tunnel ID of the uplink service carrying distribution of right of speech terminal;
Described dispatch server, also sets up for recording carrying the second tunnel ID that response message carries, and completes the foundation of the uplink service carrying of right of speech terminal.
16. according to the system that realizes of call management described in claim 15, it is characterized in that,
Described dispatch server, also for to described right of speech terminal to transmit call authorization messages;
Described right of speech terminal, also for receiving after right of speech authorization messages, responds right of speech authorization response message to dispatch server, and starts speech.
17. according to the system that realizes of call management described in claim 14, it is characterized in that,
Described terminal, also sets up request message for send RRC connection to described base station;
Described base station, is used to described terminal distribution ascending resource, and connects and set up notification message to described terminal transmission RRC;
Described terminal, also for after setting up RRC and having connected, on described ascending resource to described base station application sending the right words request message;
Described base station, also for being transmitted to described dispatch server by described the right to apply for words request message;
Described dispatch server also for receiving after the described the right to apply for words request message of one or more described terminals in group, selects described terminal that right of speech priority is the highest as right of speech terminal from one or more described terminals.
18. according to the system that realizes of call management described in claim 14, it is characterized in that,
Described right of speech terminal, also for applying for that right of speech discharges.
19. according to the system that realizes of call management described in claim 14, it is characterized in that,
Described dispatch server, also for discharging the right of speech of described right of speech terminal.
20. according to the system that realizes of call management described in claim 14, it is characterized in that,
Described base station, also for discharging the right of speech of described right of speech terminal.
21. according to the system that realizes of call management described in claim 14, it is characterized in that, right of speech priority is higher than the described terminal of described right of speech terminal, also for seizing right of speech.
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