CN101335930B - Forced releasing and forced interposing method in CDMA digital cluster system - Google Patents
Forced releasing and forced interposing method in CDMA digital cluster system Download PDFInfo
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- CN101335930B CN101335930B CN2008100870432A CN200810087043A CN101335930B CN 101335930 B CN101335930 B CN 101335930B CN 2008100870432 A CN2008100870432 A CN 2008100870432A CN 200810087043 A CN200810087043 A CN 200810087043A CN 101335930 B CN101335930 B CN 101335930B
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Abstract
The invention discloses a method of releasing force forcibly and inserting forcibly in a CDMA digital assembly system, comprising: dispatching a server to transmit a forced releasing inform to a terminal in group call 1, wherein the inform is carried with a group ID GID 2 of a group call 2; after receiving the forced releasing inform by the terminal, judging whether the current dispatching location area (DLA) is in the dispatching service area (DSA) of the group call 2 according to the terminal information, if true, the terminal answers response information of agreeing to be released to the dispatching server, released from the group call 1, and the forced releasing is successful, otherwise, the terminal answers the response information of not agreeing to be released forcibly to the dispatching server, after the dispatching server receives the response information, the dispatching server does not release the terminal forcibly any longer. Compared with the prior art, the invention avoids the possible forced releasing success and unsuccessful forced inserting when limited, to satisfy the requirement of the assembly system to process forced releasing and forced inserting control according to the established priority in the dispatching area.
Description
Technical field
The present invention relates to moving communicating field, relate in particular in digital cluster system forced releasing and forced interposing control user terminal.
Background technology
Trunked communication system is an important branch of mobile communication system, is widely used in fields such as medical lifesaving, communications and transportation, emergency cooperative, municipal administration, water conservancy and hydropower, industrial enterprise, public safety.
Trunking communication is meant a kind of dispatching communication mode of special use, comprises special-purpose commander and dispatching communication, and in use cluster user can add calling simultaneously, and conversation is carried out with single worker or half-duplex mode.
Trunking communication has been experienced simple intercom system to single base station mini system, arrive the development course of big capacity multizone system again, after experienced again from the simulation cluster to the leap of Digital Clustering, make trunking communication all can adopt more reliable digital processing mode at the aspects such as multi-access mode, speech coding, modulation-demodulation technique, simultaneous techniques, error-detection error-correction and diversity technique of signalling coding, employing.Two kinds of digital cluster systems of extensive use at present are based on TDMA (Time Division Multiple Access, time division multiple access) iDEN of technology (integrated Digital Enhanced Network, Integrated Digital Enhanced Network) and TETRA (Terrestrial Trunked Radio, land trunked radio), these system applies all belong to special-purpose cluster in specific department and unit, for promoting the sizable application of digital cluster system, further boost the efficiency of frequency resources utilization simultaneously, trunked communication system a new application trend occurred on using, the unification that exactly a plurality of digital cluster systems combined is used and is managed, thereby be able to share channel and channel, share the overlay area, communication service, carry on a shoulder pole the purpose of expense altogether, cluster application realizes the common network operation from developing into towards indivedual professional users towards a plurality of group users the most at last.
Call out in group system and be limited in certain territorial scope usually, if colony terminal (also abbreviating terminal in the literary composition as) exceeds this limited field, system will not provide trunked call service, and this limited field is called dispatcher-controlled territory.Can be according to the actual needs of the network planning, the overlay network of system is divided into some dispatch location area (DLA, Dispatch Location Area), dispatch location area can be whole network, it also can be the part of network, with the cellular cell in the wireless communication field is least unit, the designated dispatch service of trunked call zone (DSA, Dispatch Service Area), the dispatch service zone is the set (see figure 1) of dispatch location area, when trunked call exceeded the dispatch service zone of system's appointment, system no longer provided service for it.Dispatch service zone/dispatch location area of the present invention/sub-district schematic diagram such as Fig. 1 is described as follows:
Cellular cell 101: be called for short the sub-district, the unit area that signal covers in the radio communication is as example Cell_1 to Cell_7;
The dispatch service zone is the set of dispatch location area, as example DSA_1 to DSA_2, the group in the trunked call can be distributed in this dispatch service zone, limits the scope of this group trunked call service, comprise DLA_1 and DLA_2 as example DSA_1, DSA_2 comprises DLA_3.
Toll breakdown finger calling in trunked call and withdraw from the existing call that it has inserted with user terminal is enforceable, and intrusion refers to this calling is gone in the enforceable paging of user terminal of being tolled breakdown out by this calling in other group calls in several.In the limited calling in scheduling district, can relate to group system too and the user terminal that is in other low priority call be carried out the forced releasing and forced interposing operation according to certain strategy (as according to the call priority that the cluster group is provided with in advance).But when relating to the limited calling in scheduling district, may occur that: the limited calling of high priority is with after the user tolls breakdown out low priority call in the low priority call, because high-priority call itself has the dispatch service region limits, its dispatch service zone may not cover the dispatch location area of being tolled breakdown the terminal place, this terminal just can not receive the paging that high-priority call sends in the dispatch service zone like this, thereby can't insert high-priority call, causing tolling breakdown successfully, the back intrusion gets nowhere.
Summary of the invention
The technical problem to be solved in the present invention is the method for forced releasing and forced interposing in a kind of CDMA digital cluster system, contingently in the time of can avoiding limited callings in scheduling district tolls breakdown success and the intrusion situation that gets nowhere.
In order to solve the problems of the technologies described above, the invention provides the method for forced releasing and forced interposing in a kind of CDMA digital cluster system, may further comprise the steps:
Dispatch server sends to the terminal that is in group calling Call_1 and tolls breakdown notice, carries the group identification GID2 of group calling Call_2 in the notice;
Described terminal receive described toll breakdown notice after, judge that according to end message its current place dispatch location area DLA is whether in the dispatch service region D SA of group calling Call_2, if, described terminal is returned to dispatch server and is agreed split response message, from group calling Call_1, discharge, toll breakdown successfully;
If not, described terminal is returned to dispatch server and is disagreed with the response message of being tolled breakdown, and after dispatch server is received this response message, no longer tolls breakdown described terminal from group calling Call_1.
Further, toll breakdown successfully after, after the paging of the group calling Call_2 that described terminal receiving system sends, be linked among the group calling Call_2 intrusion success.
Wherein, described end message comprises: the dispatch service region D SA of group identification GID, each group's correspondence, know the group identification GID2 of current place dispatch location area DLA information and group calling Call_2 from system side.
Further, described terminal is when carrying out location registers, knows the dispatch location area information at its current place from the response message of system side.
Further, when described terminal is striden the switching of dispatch location area under talking state, terminal is perhaps known the information of the current place of this terminal dispatch location area from the handover acknowledge message of system side from the periodic broadcast message of sharing forward traffic channel.
Further, dispatch server to described terminal send toll breakdown notice before, dispatch server is in the request of receiving new group calling Call_2 and when learning that described terminal that its request adds is in current group calling Call_1, condition judgment should be tolled breakdown described terminal from group calling Call_1 and new group calling Call_2 is gone in intrusion according to tolling breakdown, and the condition of tolling breakdown can be that high-priority call is tolled breakdown low priority call.
Further, described terminal is according to the group information of tolling breakdown GID2 coupling oneself storage in the notice, find the DSA of group of GID2 correspondence, whether the dispatch location area DLA at the current place of terminal judges oneself is in the dispatch service region D SA of group, if, illustrate that then described terminal is in the dispatch service zone of the Call_2 of group; Otherwise, illustrate that described terminal is not in the dispatch service zone of the Call_2 of group.
Further, described terminal discharges from group calling Call_1 when return agreeing split response message voluntarily, also can be dispatch server receive agree split response message after, system initiatively initiates to discharge the operation of described terminal.
Further, the paging of the group calling Call_2 that system sends can be the periodicity paging of system's timed sending, also can be that described terminal discharges the paging that the back system that finishes initiatively sends.
Further, return when disagreeing with the response message of being tolled breakdown to dispatch server when described terminal, show the group information of tolling breakdown group calling Call_2 in the notice, the user is by other group calls in several mistake in prompting.
Compared with prior art, contingently when the present invention has avoided scheduling district limited toll breakdown success and the unsuccessful situation of intrusion, in dispatcher-controlled territory, carry out the needs of forced releasing and forced interposing control according to the priority policy of formulating in advance to satisfy group system.
Description of drawings
Fig. 1 is dispatch service zone/dispatch location area/sub-district schematic diagram;
Fig. 2 is the network diagram of CDMA digital cluster system;
Fig. 3 is the flow chart of the limited calling forced releasing and forced interposing in embodiment of the invention scheduling district.
Embodiment
Below in conjunction with drawings and Examples technical solution of the present invention is described in further detail:
For the ease of understanding forced releasing and forced interposing method of the present invention, earlier to this method institute based on network structure be introduced, this network is illustrated as shown in Figure 2, is comprised following part:
Colony terminal MS can support storing subscriber information, and group information, dispatcher-controlled territory are judged, the terminal equipment of group services such as response group calling paging;
Base station sub-system BSS comprises the transceiver (BTS) of supporting trunked call, base station controller (BSC) and with the mutual dispatching client (PDC) of network side;
Dispatch server PDS is used to realize the calling control and the right of speech management of trunked call;
Dispatching home location register PHR is used to preserve the log-on message and the positional information of cluster user and group, realizes authentication, mandate and billing function to cluster user, and the position is upgraded and group management function.
Above-mentioned base station sub-system BSS, dispatch server PDS and dispatching home location register PHR are referred to as system side.
The flow process of the limited calling forced releasing and forced interposing in present embodiment scheduling district may further comprise the steps as shown in Figure 3:
Terminal is obtained its present place DLA information from system side generally is when carrying out location registers, notifies terminal by system side in response message.Switch if stride DLA under talking state, system side can be informed the change of its present dispatch location area of terminal by handover acknowledge message, perhaps, and by the forward traffic channel periodic broadcast DLA information of sharing, by the current DLA value of terminal.It should be noted that the present invention is not limited to obtain DLA information by above mode.
Under the situation shown in Figure 1, terminal MS _ 1 its current DLA value DLA_1 of storage, terminal MS _ 2 its current DLA value DLA_3 of storage.
Processing in the time of can not tolling breakdown is not a discussion scope of the present invention.
Process relatively is that terminal M is according to the group information of tolling breakdown GID2 coupling oneself storage in the notice, find the DSA of group of GID2 correspondence, the DLA at the current place of terminal judges oneself whether in the DSA of group, if, illustrate that then terminal is in the dispatch service zone of group.
Terminal M can discharge from group calling Call_1 when return agreeing split response message voluntarily, also can be dispatch server receive agree split response message after, system initiatively initiates to discharge the operation of terminal M.
The paging of the group calling Call_2 that system sends can be the periodicity paging of system's timed sending, also can be that terminal M discharges the paging that the back system that finishes initiatively sends.
After step 180, dispatch server are received this response message, do not reattempt and toll breakdown terminal M from group calling Call_1, flow process finishes.
Cooperate Fig. 1 that an application example is described below.
Terminal MS _ 1 and MS_2 are in respectively among the group calling Call_1, and MS_1 is in dispatch location area DLA_1, and MS_2 is in dispatch location area DLA_3; At this moment, another user initiates group calling Call_2, and terminal MS _ 1 and MS_2 belong to the group of this calling, the dispatch service zone of Call_2 is DSA_1, and supposition group calling Call_2 is urgent call, and group calling Call_1 is ordinary call, and the priority of group calling Call_2 is higher than group calling Call_1;
Dispatch server is received the request of group calling Call_2 and is learnt terminal MS _ 1 that its request adds and MS_2 in current group calling Call_1 the time, condition judgment should with terminal MS _ 1 and MS_2 tolls breakdown from group calling Call_1 and group calling Call_2 is gone in intrusion according to tolling breakdown, then toll breakdown notice, comprise the group identification GID2 of group calling Call_2 to MS_1 and MS_2 transmission;
After MS_1 has received and has tolled breakdown notice, according to tolling breakdown the dispatch service region D SA_1 that GID2 in the notice finds the Call_2 of group of oneself storage, judge the dispatch service region D SA_1 that its present place DLA_1 belongs to group calling Call_2, then return the response message that agreement is tolled breakdown, and from group calling Call_1, be released to dispatch server; After tolling breakdown successfully, after the paging of the group calling Call_2 that system sends was received in terminal MS _ 1, the paging of response Call_2 inserted Call_2, the forced releasing and forced interposing success.
After if MS_2 has received and has tolled breakdown notice, according to tolling breakdown the dispatch service region D SA_1 that GID2 in the notice finds the Call_2 of group of oneself storage, judge the dispatch service region D SA_1 that its present place DLA_3 does not belong to group calling Call_2, then return and disagree with the response message of being tolled breakdown to dispatch server, and organized the information that Call_2 called out in interface display, after dispatch server receives that MS_2 disagrees with the response message of being tolled breakdown, do not reattempt from group calling Call_1 and toll breakdown MS_2, forced releasing and forced interposing finishes.
In sum, the invention provides a kind of forced releasing and forced interposing method in the CDMA2000 Digital Clustering, this method needs terminal to participate in, contingently when having avoided scheduling district limited toll breakdown success and the unsuccessful situation of intrusion, satisfy group system is carried out forced releasing and forced interposing control according to the priority policy of formulating in advance in dispatcher-controlled territory needs.
The present invention can also have various conversion on the basis of the foregoing description, these conversion should belong to protection scope of the present invention.
Claims (8)
1. the method for forced releasing and forced interposing in the CDMA digital cluster system may further comprise the steps:
Dispatch server sends to the terminal that is in group calling Call_1 and tolls breakdown notice, carries the group identification GID2 of group calling Call_2 in the notice;
Described terminal receive described toll breakdown notice after, judge that according to end message its current place dispatch location area DLA is whether in the dispatch service region D SA of group calling Call_2, if, described terminal is returned to dispatch server and is agreed split response message, from group calling Call_1, discharge, toll breakdown successfully;
If not, described terminal is returned to dispatch server and is disagreed with the response message of being tolled breakdown, and after dispatch server is received this response message, no longer tolls breakdown described terminal from group calling CaLL_1;
Described end message comprises: the dispatch service region D SA of group identification GID, each group's correspondence, know the group identification GID2 of current place dispatch location area DLA information and group calling Call_2 from system side;
Describedly judge that according to end message its current place dispatch location area DLA whether in the dispatch service region D SA of group calling Call_2, specifically comprises:
Described terminal is according to the group information of tolling breakdown GID2 coupling oneself storage in the notice, find the DSA of group of GID2 correspondence, whether the dispatch location area DLA at the current place of terminal judges oneself is in the dispatch service region D SA of group, if, illustrate that then described terminal is in the dispatch service zone of the Call_2 of group; Otherwise, illustrate that described terminal is not in the dispatch service zone of the Call_2 of group.
2. the method for forced releasing and forced interposing as claimed in claim 1 is characterized in that, toll breakdown successfully after, after the paging of the group calling Call_2 that described terminal receiving system sends, be linked among the group calling Call_2 intrusion success.
3. the method for forced releasing and forced interposing as claimed in claim 1 or 2 is characterized in that, described terminal is when carrying out location registers, knows the dispatch location area information at its current place from the response message of system side.
4. the method for forced releasing and forced interposing as claimed in claim 1 or 2, it is characterized in that, when described terminal is striden the switching of dispatch location area under talking state, terminal is perhaps known the information of the current place of this terminal dispatch location area from the handover acknowledge message of system side from the periodic broadcast message of sharing forward traffic channel.
5. the method for forced releasing and forced interposing as claimed in claim 2, it is characterized in that, dispatch server is before notice is tolled breakdown in described terminal transmission, dispatch server is in the request of receiving new group calling Call_2 and when learning that terminal that its request adds is in current group calling Call_1, condition judgment should be tolled breakdown described terminal from group calling Call_1 and new group calling Call_2 is gone in intrusion according to tolling breakdown, and the condition of tolling breakdown is that high-priority call is tolled breakdown low priority call.
6. the method for forced releasing and forced interposing as claimed in claim 1 or 2, it is characterized in that described terminal discharges voluntarily from group calling Call_1 when return agreeing split response message, or dispatch server receive agree split response message after, system initiatively initiates to discharge the operation of described terminal.
7. the method for forced releasing and forced interposing as claimed in claim 1 or 2 is characterized in that, the paging of the group calling Call_2 that system sends is that the periodicity paging or the described terminal of system's timed sending discharges the paging that the back system that finishes initiatively sends.
8. the method for forced releasing and forced interposing as claimed in claim 2 is characterized in that, returns when disagreeing with the response message of being tolled breakdown to dispatch server when described terminal, shows the group information of tolling breakdown group calling Call_2 in the notice, and the user is by other group calls in several mistake in prompting.
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| CN2008100870432A CN101335930B (en) | 2008-03-26 | 2008-03-26 | Forced releasing and forced interposing method in CDMA digital cluster system |
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| CN2008100870432A CN101335930B (en) | 2008-03-26 | 2008-03-26 | Forced releasing and forced interposing method in CDMA digital cluster system |
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| CN101335930B true CN101335930B (en) | 2011-07-13 |
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| CN102123354A (en) * | 2011-03-30 | 2011-07-13 | 上海通号轨道交通工程技术研究中心有限公司 | Group calling method based on digital trunking communication system |
| CN103166770B (en) * | 2011-12-15 | 2016-03-23 | 北京信威通信技术股份有限公司 | A kind of merging treatment method of cluster multi call concurrency conflict |
| CN103874026B (en) * | 2012-12-13 | 2018-04-06 | 中国电信股份有限公司 | Method, system and user terminal that group is exhaled are realized in PTT systems |
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| EP1330138A2 (en) * | 2002-01-17 | 2003-07-23 | Motorola, Inc. | Dynamic group calling mechanism |
| CN1592441A (en) * | 2003-09-05 | 2005-03-09 | 华为技术有限公司 | Group call area setting method for cluster communication system |
| CN1992932A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Forced releasing and forced interposing method related with dispatching region of CDMA digital trunking system |
| CN1992933A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Method for implementing forced releasing and forced interposing function of trunking call in digital trunking communication system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1330138A2 (en) * | 2002-01-17 | 2003-07-23 | Motorola, Inc. | Dynamic group calling mechanism |
| CN1592441A (en) * | 2003-09-05 | 2005-03-09 | 华为技术有限公司 | Group call area setting method for cluster communication system |
| CN1992932A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Forced releasing and forced interposing method related with dispatching region of CDMA digital trunking system |
| CN1992933A (en) * | 2005-12-26 | 2007-07-04 | 中兴通讯股份有限公司 | Method for implementing forced releasing and forced interposing function of trunking call in digital trunking communication system |
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