CN100461902C - Call method and system for trunked communication - Google Patents
Call method and system for trunked communication Download PDFInfo
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- CN100461902C CN100461902C CNB2006100836818A CN200610083681A CN100461902C CN 100461902 C CN100461902 C CN 100461902C CN B2006100836818 A CNB2006100836818 A CN B2006100836818A CN 200610083681 A CN200610083681 A CN 200610083681A CN 100461902 C CN100461902 C CN 100461902C
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Abstract
The invention relates to a group communication method and relative system, wherein said method comprises that: called user receives emergence invitation message, if it is communicating, getting out the communication, the group exchanger connects the emergence communication with caller; if it is free, exchanger connects it to the caller. And the system comprises calling terminal, called terminal and group exchanger; the calling terminal sends the emergence call, and sends emergence call information to the exchange; the exchanger invites the called terminal.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of trunking communication Emmergency call method and system.
Background technology
Trunking communication is meant the shared one group of wireless channel of a plurality of users (department, colony), and dynamically uses the specialized mobile radio technology of these channels, and it has experienced the evolution from the analogue technique to the digital technology.Compare with the public's cellular mobile system, digital clustering communication system has following characteristics: call proceeding is fast; Adopt the half-duplex operation mode; Can support group services such as individual calling, group calling, broadcast ﹠ call.
Trunked communication system possesses the characteristic of particular schedule function, group calling function and short calling, therefore play a great role in the specialized communication field, its main application comprises: special sector and the enterprise higher to the command scheduling functional requirement mainly comprise units such as government department, railway, water conservancy, electric power, civil aviaton; Common industry user is as taxi, logistics, estate management and factory's manufacturing industry etc.In addition, trunking communication can make user's shared channel in the group, effectively utilizes frequency resource and Internet resources, thereby reduces the construction and the operation cost of communication network.
In the trunking communication of the proprietary industry of part is used, might need to deal with urgent work.When the calling subscriber when the called subscriber initiates urgent call, if this moment, called subscriber's free time and interface-free resources were enough, then can connect the called subscriber.Seeing also Fig. 1, is the urgent call flow chart when called subscriber's free time and interface-free resources are enough in the prior art, comprises step:
S11) calling subscriber initiates urgent call;
When the calling subscriber initiates urgent call to the called subscriber, send message, carry calling subscriber's urgent call sign, calling subscriber's information such as position, calling number and called number in the message to Trunking Switching Center.
Specifically may further comprise the steps:
S111) calling subscriber sends the request of setting up urgent call with the called subscriber to Trunking Switching Center;
S112) Trunking Switching Center assignment Traffic Channel;
S113) calling subscriber accepts described Traffic Channel, returns the caller access to Trunking Switching Center and finishes message.
S12) Trunking Switching Center is invited the called subscriber;
Trunking Switching Center inquiry called party information, and send message invitation called subscriber, wherein carry information such as urgent call sign, calling number or group number.
S13) Trunking Switching Center is connected called subscriber and calling subscriber's urgent call;
Specifically may further comprise the steps:
S131) after the called subscriber receives the urgent call invitation message, send the request of setting up calling with the calling subscriber to Trunking Switching Center;
S132) Trunking Switching Center is received assignment interface-free resources after the described request, connect called subscriber and calling subscriber calling;
S133) called subscriber returns called access to Trunking Switching Center and finishes message.
S14) called subscriber and calling subscriber's session.
During trunking communication was used, because the particularity of trunked call, a lot of users might be in some cluster sessions for a long time, therefore when urgent affairs need be called out the certain user, cause connecting these users, thereby cause call failure; In addition, even the called subscriber is in idle condition, if but the service district interface-free resources deficiency at called subscriber place can not realize that still urgent call inserts.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of colony communication calling method and system, still can connect the urgent call that the calling subscriber initiates when these method and system can make the called subscriber be in session.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of colony communication calling method: the called subscriber receives the urgent call invitation message that Trunking Switching Center sends, described urgent call invitation message is after Trunking Switching Center receives the urgent call of calling subscriber's initiation, if send to described called subscriber when judging the interface-free resources abundance, or judge interface-free resources when not enough, send to described called subscriber again after discharging at least one current sessions; After the called subscriber receives the urgent call invitation message,, then withdraw from former session by sending request to described Trunking Switching Center if be in session status, and by the urgent call of Trunking Switching Center connection with the calling subscriber; If be in idle condition, then directly by the urgent call of Trunking Switching Center connection with the calling subscriber.
Described called subscriber is specially by withdrawing from former session to described Trunking Switching Center transmission request: the called subscriber sends to Trunking Switching Center and withdraws from former conversation request, is discharged called subscriber's former session according to the former conversation request of withdrawing from of described called subscriber by described Trunking Switching Center.
Described Trunking Switching Center sends the urgent call invitation message to the called subscriber and comprises the warning information that is used to monitor calling to the dispatching desk transmission.
The invention provides a kind of colony communication calling system, comprising: calling terminal is used to initiate urgent call, and sends emergency call information to Trunking Switching Center; Trunking Switching Center, after being used to receive the emergency call information of calling terminal transmission, if then invite terminal called when judging the interface-free resources abundance according to described emergency call information, if judge interface-free resources when not enough, invite terminal called according to described emergency call information again after discharging at least one current sessions; Terminal called, be used to receive the invitation that described Trunking Switching Center sends after, if be in session status, then withdraw from former session, and connect urgent call with described calling terminal by Trunking Switching Center by sending request to described Trunking Switching Center; If be in idle condition, then directly by the urgent call of Trunking Switching Center connection with described calling terminal.
Described Trunking Switching Center also be used for terminal called to Trunking Switching Center send withdraw from former conversation request after, withdraw from the former session that former conversation request discharges terminal called according to described.
Described system also comprises dispatching desk, be used to receive described Trunking Switching Center sends be used to monitor the warning information of calling after, monitoring is called out.
Above technical scheme is as can be seen:
At first, when the called subscriber is in session in the prior art, can't realize the access of urgent call, and among the present invention, after the called subscriber receives the urgent call invitation message, if be in session status, then withdraw from former session, and by the urgent call of Trunking Switching Center connection with the calling subscriber; If be in idle condition, then directly connect urgent call with the calling subscriber by Trunking Switching Center, thereby but switching in urgent call still when having realized that the called subscriber is in session;
Secondly, when the called subscriber is in the free time in the prior art, if the service district interface-free resources deficiency at place, the called subscriber can not switching in urgent call, and among the present invention, no matter the called subscriber is in idle condition or session status, if the service district interface-free resources deficiency at called subscriber place, Trunking Switching Center is vacated interface-free resources with the release portion current sessions, make urgent call obtain priority treatment, thereby realize the access of urgent call.
Description of drawings
Fig. 1 is the urgent call flow chart when called subscriber's free time and interface-free resources are enough in the prior art;
Fig. 2 is an Emmergency call method flow chart of the present invention;
Fig. 3 is that called subscriber of the present invention is in session and the interface-free resources urgent call embodiment flow chart when enough;
Fig. 4 is that called subscriber of the present invention withdraws from former calling and sets up new calling procedure flow chart;
Fig. 5 is that called subscriber of the present invention is in session and the interface-free resources urgent call embodiment flow chart when not enough;
Fig. 6 is that called subscriber of the present invention is in the free time but the urgent call embodiment flow chart of interface-free resources when not enough;
Fig. 7 is a calling system schematic diagram of the present invention.
Embodiment
In trunking communication, each terminal use can belong to a plurality of different groups, and can participate in multiple session, as: group calling, point to point call etc.Half-duplex PTT (Push-To-Talk) mode is generally adopted in trunking communication, just so-called one mode that pushes to talk.The user uses for convenience, and each terminal has an independent button to be used for initiating urgent call at visibility point, and when pressing this key, the user can select the number of urgent call.Need to prove that described terminal is meant the terminal of supporting group service.
The invention provides a kind of colony communication calling method and system, its core concept is: after the called subscriber receives the urgent call invitation message,, then withdraw from former session if be in session status, and by the urgent call of Trunking Switching Center connection with the calling subscriber; If be in idle condition, then directly by the urgent call of Trunking Switching Center connection with the calling subscriber.
Further, before the emergency call information that Trunking Switching Center is initiated according to the calling subscriber is invited the called subscriber, comprise that Trunking Switching Center is invited the called subscriber after discharging at least one common session again as if the interface-free resources deficiency.
For the ease of the present invention is further understood, describe the present invention below in conjunction with drawings and embodiments.
Seeing also Fig. 2, is Emmergency call method flow chart of the present invention, comprises step:
S21) calling subscriber initiates urgent call;
S22) whether the interface-free resources of Trunking Switching Center inquiry sub-district, called subscriber place is enough, if not enough, enters step S23), if enough, enter step S24);
S23) the current common session of Trunking Switching Center release portion, and enter step S24);
S24) Trunking Switching Center is invited the called subscriber;
S25) whether the called subscriber is in session status, if enter step S26), if be in idle condition, enter step S27);
S26) called subscriber withdraws from former session, enters step S27);
S27) Trunking Switching Center is connected calling subscriber and called subscriber's urgent call.
Seeing also Fig. 3, is that called subscriber of the present invention is in session and the interface-free resources urgent call embodiment flow chart when enough, comprises step:
S31) calling subscriber initiates urgent call;
The calling subscriber selects the number of urgent call, initiates urgent call to the called subscriber.
When the calling subscriber initiates urgent call to the called subscriber, send message, carry calling subscriber's urgent call sign, calling subscriber's information such as position, calling number and called number in the message to Trunking Switching Center.
Need to prove that the called subscriber of calling subscriber's urgent call may comprise a plurality of users.
Specifically may further comprise the steps:
S311) calling subscriber sends the request of setting up urgent call with the called subscriber to Trunking Switching Center;
S312) Trunking Switching Center assignment Traffic Channel;
S313) calling subscriber accepts described Traffic Channel, returns the caller access to Trunking Switching Center and finishes message.
S32) send a warning message to dispatching desk;
After Trunking Switching Center is received calling subscriber's message, send a warning information to dispatching desk, prompting has urgent call to take place, and carries in the warning information and calls out the relevant numbers of calling and called parties and the positional information of caller.Dispatching desk is known calling subscriber's position, can play the effect of monitoring, and needs as the case may be to carry out call scheduling work.
S33) Trunking Switching Center is invited the called subscriber;
Trunking Switching Center is inquired about called user information, and sends the urgent call invitation message by the channel of former calling to the called subscriber, wherein carries information such as urgent call sign, calling number or group number.
S34) called subscriber withdraws from former session;
The called subscriber withdraws from former session after receiving the urgent call invitation message of Trunking Switching Center, please consults Fig. 4 simultaneously, comprises step:
A, called subscriber send to Trunking Switching Center and withdraw from former conversation request;
B, Trunking Switching Center receive that called subscriber's the request of withdrawing from back discharges called subscriber's former session automatically;
Detailed process is to discharge the interface-free resources that the called subscriber takies by Trunking Switching Center request base station side, thereby discharges called subscriber's former session;
C, called subscriber withdraw from former session, and return former session Release complete to Trunking Switching Center.
S35) Trunking Switching Center is connected called subscriber and calling subscriber's urgent call;
Please consult Fig. 4 simultaneously, this step may further comprise the steps:
D, called subscriber send the request of setting up calling with the calling subscriber to Trunking Switching Center;
E, Trunking Switching Center are received assignment interface-free resources after the described request, connect called subscriber and calling subscriber calling;
F, called subscriber return called access to Trunking Switching Center and finish message.
S36) called subscriber and calling subscriber's session.
Subsequent process is identical with normal call.
Need to prove, when if Trunking Switching Center is invited the called subscriber, the called subscriber is in other urgent call, then the called subscriber can not add new urgent call, but Trunking Switching Center can be invited this called subscriber always, after the called subscriber withdraws from original emergent session, can add new urgent call like this, converse with the calling subscriber.
Seeing also Fig. 5, is that called subscriber of the present invention is in session and the interface-free resources urgent call embodiment flow chart when not enough, comprises step:
S51) calling subscriber initiates urgent call;
When the calling subscriber initiates urgent call to the called subscriber, send message, carry calling subscriber's urgent call sign, calling subscriber's information such as position, calling number and called number in the message to Trunking Switching Center.
Need to prove that the called subscriber of calling subscriber's urgent call may comprise a plurality of users.
Specifically may further comprise the steps:
S511) calling subscriber sends the request of setting up urgent call with the called subscriber to Trunking Switching Center;
S512) Trunking Switching Center assignment Traffic Channel;
S513) calling subscriber accepts described Traffic Channel, returns the caller access to Trunking Switching Center and finishes message.
S52) send a warning message to dispatching desk;
After Trunking Switching Center is received calling subscriber's message, send a warning information to dispatching desk, prompting has urgent call to take place, and carries in the warning information and calls out the relevant numbers of calling and called parties and the positional information of caller.
Dispatching desk is known calling subscriber's position, can play the effect of monitoring, and needs as the case may be to carry out call scheduling work.
S53) if the interface-free resources deficiency, the current common session of release portion;
Whether the interface-free resources of Trunking Switching Center inquiry called subscriber place service district is enough, if the interface-free resources deficiency, then Trunking Switching Center discharges the current common session of at least one non-emergency call.
S54) Trunking Switching Center is invited the called subscriber;
Trunking Switching Center is inquired about called user information, and sends the urgent call invitation message by the channel of former calling to the called subscriber, wherein carries information such as urgent call sign, calling number or group number.
S55) called subscriber withdraws from former session;
The called subscriber withdraws from former session after receiving the urgent call invitation message of Trunking Switching Center, please consults Fig. 4 simultaneously, comprises step:
A, called subscriber send to Trunking Switching Center and withdraw from former conversation request;
B, Trunking Switching Center receive that called subscriber's the request of withdrawing from back discharges called subscriber's former session automatically;
Detailed process is to discharge the interface-free resources that the called subscriber takies by Trunking Switching Center request base station side, thereby discharges called subscriber's former session;
C, called subscriber withdraw from former session, and return former session Release complete to Trunking Switching Center.
S56) Trunking Switching Center is connected called subscriber and calling subscriber's urgent call;
Please consult Fig. 4 simultaneously, this step may further comprise the steps:
D, called subscriber send the request of setting up calling with the calling subscriber to Trunking Switching Center;
E, Trunking Switching Center are received assignment interface-free resources after the described request, connect called subscriber and calling subscriber calling;
F, called subscriber return called access to Trunking Switching Center and finish message.
S57) called subscriber and calling subscriber's session.
Subsequent process is identical with normal call.
Need to prove, when if Trunking Switching Center is invited the called subscriber, the called subscriber is in other urgent call, then the called subscriber can not add new urgent call, but Trunking Switching Center can be invited this called subscriber always, after the called subscriber withdraws from original emergent session, can add new urgent call like this, converse with the calling subscriber.
The calling subscriber initiates urgent call to the called subscriber, if this moment, the called subscriber was in idle condition, and its place service district interface-free resources is enough, then Trunking Switching Center is directly invited the called subscriber, and assignment interface-free resources, connect calling subscriber and called subscriber's urgent call, make calling subscriber and called subscriber carry out session.
The calling subscriber initiates urgent call to the called subscriber, if this moment, the called subscriber was in idle condition, but its place service district does not have available interface-free resources, and then Trunking Switching Center will discharge the session of at least one non-emergency call, and then invites the called subscriber.
See also Fig. 6, be that called subscriber of the present invention is in the free time but the urgent call embodiment flow chart of interface-free resources when not enough comprises step:
S61) calling subscriber initiates urgent call;
When the calling subscriber initiates urgent call to the called subscriber, send message, carry calling subscriber's urgent call sign, calling subscriber's information such as position, calling number and called number in the message to Trunking Switching Center.
Need to prove that the called subscriber of calling subscriber's urgent call may comprise a plurality of users.
Specifically may further comprise the steps:
S611) calling subscriber sends the request of setting up urgent call with the called subscriber to Trunking Switching Center;
S612) Trunking Switching Center assignment Traffic Channel;
S613) calling subscriber accepts described Traffic Channel, returns the caller access to Trunking Switching Center and finishes message.
S62) send a warning message to dispatching desk;
After Trunking Switching Center is received calling subscriber's message, send a warning information to dispatching desk, prompting has urgent call to take place, and carries in the warning information and calls out the relevant numbers of calling and called parties and the positional information of caller.
Dispatching desk is known calling subscriber's position, can play the effect of monitoring, and needs as the case may be to carry out call scheduling work.
S63) if the interface-free resources deficiency, the current common session of release portion;
Whether the interface-free resources of Trunking Switching Center inquiry called subscriber place service district is enough, if the interface-free resources deficiency, then Trunking Switching Center discharges the current common session of at least one non-emergency call.
S64) Trunking Switching Center is invited the called subscriber;
Trunking Switching Center is inquired about called user information, and sends the urgent call invitation message by the channel of former calling to the called subscriber, wherein carries information such as urgent call sign, calling number or group number.
S65) Trunking Switching Center is connected called subscriber and calling subscriber's urgent call;
Please consult Fig. 4 simultaneously, this step may further comprise the steps:
D, called subscriber send the request of setting up calling with the calling subscriber to Trunking Switching Center;
E, Trunking Switching Center are received assignment interface-free resources after the described request, connect called subscriber and calling subscriber calling;
F, called subscriber return called access to Trunking Switching Center and finish message.
S66) called subscriber and calling subscriber's session.
Subsequent process is identical with normal call.
Accordingly, the invention provides a kind of colony communication calling system, see also Fig. 7, is calling system schematic diagram of the present invention.
Calling terminal 701 is used to make a call; Terminal called 702 is used for receipt of call; Trunking Switching Center 703, the calling that is used to discharge and connect calling/called terminal; Calling terminal 701 is initiated urgent call, and to Trunking Switching Center 703 transmission emergency call informations, Trunking Switching Center 703 is invited terminal called 702 according to described information, after terminal called 702 is received described invitation, if be in session status, then withdraw from former session, and by the urgent call of Trunking Switching Center 703 connections with calling terminal 701; If be in idle condition, then directly by the urgent call of Trunking Switching Center 703 connections with calling terminal 701; Dispatching desk 704 is used for monitoring and calls out, and comprises to dispatching desk 704 before the Trunking Switching Center 703 invitation terminal calleds 702 sending a warning message, and carries in the warning information and calls out the relevant calling/called termination number and the positional information of calling terminal 701.
The process that terminal called 702 withdraws from former session comprises: terminal called 702 sends to Trunking Switching Center 703 and withdraws from former conversation request; Trunking Switching Center 703 is according to the described former session of withdrawing from request release terminal called 702; Terminal called 702 returns former session Release complete to Trunking Switching Center 703.
Need to prove, when if Trunking Switching Center 703 is invited terminal called 702, terminal called 702 is in other urgent call, then terminal called 702 can not add new urgent call, but Trunking Switching Center 703 can be invited this terminal called 702 always, after terminal called 702 withdraws from original emergent session, can add new urgent call like this, with calling terminal 701 sessions.
More than a kind of colony communication calling method and system provided by the present invention are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. colony communication calling method is characterized in that:
The called subscriber receives the urgent call invitation message that Trunking Switching Center sends, described urgent call invitation message is after Trunking Switching Center receives the urgent call of calling subscriber's initiation, if send to described called subscriber when judging the interface-free resources abundance, or judge interface-free resources when not enough, send to described called subscriber again after discharging at least one current sessions;
After the called subscriber receives the urgent call invitation message,, then withdraw from former session by sending request to described Trunking Switching Center if be in session status, and by the urgent call of Trunking Switching Center connection with the calling subscriber; If be in idle condition, then directly by the urgent call of Trunking Switching Center connection with the calling subscriber.
2. colony communication calling method according to claim 1 is characterized in that, describedly withdraws from former session and is specially by send request to described Trunking Switching Center:
The called subscriber sends to Trunking Switching Center and withdraws from former conversation request, is discharged called subscriber's former session according to the former conversation request of withdrawing from of described called subscriber by described Trunking Switching Center.
3. colony communication calling method according to claim 1 and 2 is characterized in that:
Described Trunking Switching Center comprises the warning information that is used to monitor calling to the dispatching desk transmission before the called subscriber sends the urgent call invitation message.
4. a colony communication calling system is characterized in that, comprising:
Calling terminal is used to initiate urgent call, and sends emergency call information to Trunking Switching Center;
Trunking Switching Center, after being used to receive the emergency call information of calling terminal transmission, if then invite terminal called when judging the interface-free resources abundance according to described emergency call information, if judge interface-free resources when not enough, invite terminal called according to described emergency call information again after discharging at least one current sessions;
Terminal called, be used to receive the invitation that described Trunking Switching Center sends after, if be in session status, then withdraw from former session, and connect urgent call with described calling terminal by Trunking Switching Center by sending request to described Trunking Switching Center; If be in idle condition, then directly by the urgent call of Trunking Switching Center connection with described calling terminal.
5. colony communication calling according to claim 4 system, it is characterized in that, described Trunking Switching Center also be used for terminal called to Trunking Switching Center send withdraw from former conversation request after, withdraw from the former session that former conversation request discharges terminal called according to described.
6. according to claim 4 or 5 described colony communication calling systems, it is characterized in that, also comprise:
Dispatching desk, be used to receive described Trunking Switching Center sends be used to monitor the warning information of calling after, monitoring is called out.
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| CNB2006100836818A CN100461902C (en) | 2006-06-02 | 2006-06-02 | Call method and system for trunked communication |
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| CNB2006100836818A CN100461902C (en) | 2006-06-02 | 2006-06-02 | Call method and system for trunked communication |
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| CN1968457A CN1968457A (en) | 2007-05-23 |
| CN100461902C true CN100461902C (en) | 2009-02-11 |
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| CNB2006100836818A Expired - Fee Related CN100461902C (en) | 2006-06-02 | 2006-06-02 | Call method and system for trunked communication |
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| CN101841793B (en) * | 2009-03-20 | 2013-02-27 | 中兴通讯股份有限公司 | Method and system for logging off emergency call user |
| CN104270726B (en) * | 2014-10-20 | 2017-07-28 | 哈尔滨工业大学 | A kind of method of channel utilization in raising overlapping coverage areas |
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