CN100407820C - Main call service user release multi call uplink method - Google Patents
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- CN100407820C CN100407820C CN2006100984133A CN200610098413A CN100407820C CN 100407820 C CN100407820 C CN 100407820C CN 2006100984133 A CN2006100984133 A CN 2006100984133A CN 200610098413 A CN200610098413 A CN 200610098413A CN 100407820 C CN100407820 C CN 100407820C
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Abstract
This invention relates to cluster mobile communication field especially to a releasing set-call up method of calling service users in the phone set-call service, when a calling service user starts up set-call to release up in the Relay MSC, the Relay MSC first of all assigns it to the channel of a region where the calling service user places then to initiate and release the inter-office special voice channel between the Relay MSC and Anchor MSC connected with the user, in which, the Relay MSC releases special channel of the calling service user in this region after the user is assigned to the set-call channel in the region to keep the calling service users in the set-call when it releases set-call up after the Relay MSC initiates set-call.
Description
Technical field
The present invention relates to the communications field, particularly relate to the method for a kind of main call service user release multi call uplink in the voice group call service in the trunking communication field.
Background technology
Trunking mobile communication is a kind of less expensive of growing up the seventies in 20th century, than the flexible movement communication system, it is the senior developing stage of traditional dedicated radio scheduling net.Traditional dedicated radio dispatching patcher, integrated planning is poor, and model, standard mix, and net little too much, and coverage rate is narrow, and in addition noise jamming is serious, the frequency resource waste.Therefore, a kind of new the radio dispatching technique---trunking mobile communication just arises at the historic moment, and is widely applied to traffic, public security, each specialized departments such as highway, fire-fighting, electric power, railway, flood control, finance.
So-called cluster, promptly being to use a plurality of wireless channels is numerous user's services, working method with the telephone trunk line applies in the radio communications system exactly, limited dynamics of channels ground, automatically, rapidly with all users that distribute to whole system of the best, so that utilize the frequency resource of the channel of whole system to the full extent, its utilization switching technology and computer technology is for whole users of system provide very strong packet capability.
Voice group call service (Voice group call service, abbreviation VGCS), Voice Broadcast Service (VoiceBroadcast Service, be called for short VBS) and the multipriority that strengthens be three kinds of basic services of trunking mobile communication with conversion power (EnhanceMulti-Level Precedence and Pre-emption is called for short eMLPP).
VGCS is the many people speech that is implemented in the VGCS zone, can the understand speech business of (hearer's quantity is unrestricted) of more people.The voice communication mode of the point-to-multipoint that VGCS realized the some people speech, listen to has in many ways broken through the limitation of point-to-point communication, can set up calling fast.
In the VGCS system, when the VGCS zone surpassed the coverage of a mobile switching centre (Mobile SwitchingCenter is called for short MSC), this group calling had a plurality of MSC, wherein the MSC of master control is Anchor MSC, and other MSC is relay MSC (Relay MSC).Anchor MSC is responsible for whole calling, and the data of being in charge of have group call cell tabulation in group calling attribute, dispatcher tabulation, dispatcher's tabulation, Relay MSC tabulation, the Anchor MSC, group calling Status Flag (whether busy (Ongoing)).The data that Relay MSC is in charge of have group call cell tabulation in the Relay MSC, Anchor MSC sign, group calling Status Flag (whether Ongoing).During a VGCS calls out, a plurality of Relay MSC can be arranged, also can not have Relay MSC.VGCS calls out the mode of initiating and mainly contains two kinds: service-user is imported group id (Group ID) on travelling carriage, selects the VGCS COS, initiates VGCS and calls out; The dispatcher initiates VGCS and calls out by directly dialing the group call reference number.
Service-user can be initiated VGCS and be called out in Anchor MSC or Relay MSC, when service-user is initiated the VGCS calling in Relay MSC, take a proprietary speech channel, comprise that a dedicated channel and a Relay MSC in the sub-district is connected with the proprietary speech channel of interoffice between the Anchor MSC.During main call service user release multi call uplink, need to discharge the proprietary speech channel connection of dedicated channel, interoffice that calling business user takies, and calling business user is assigned on the group-calling channel.
When calling business user is initiated group calling in Relay MSC, Relay MSC is from Group Call Register (Group Call Register, abbreviation GCR) obtains the address of Anchor MSC in, according to the AnchorMSC address, select the interoffice route, use the group call reference structure to set up the proprietary traffic bind command of interoffice and mail to Anchor MSC, set up speech channel connection between the calling business user dedicated offices between Anchor MSC and the Relay MSC; What Anchor MSC analyzing called number was learnt initiation is voice group call service, inquiry GCR, obtain the group calling attribute data, setting up group calling message to Relay MSC transmission notifies Relay MSC to prepare to set up group calling, Relay MSC assign group is wailed sign indicating number and is returned to Anchor MSC, Anchor MSC selects the interoffice route according to the group calling number, and structure is set up order and mail to Relay MSC, and the shared speech channel of setting up between Anchor MSC and the Relay MSC connects.
When discharging the calling business user group call uplink, the group-calling channel that calling business user need be assigned to its sub-district, place gets on, make calling business user become the hearer, otherwise, calling business user will break away from dedicated channel and leaving group-calling when discharging proprietary speech channel connection of interoffice and dedicated channel.If the notification message in the dependence group call cell makes calling business user when discharging group call uplink, add group calling again, the calling business user terminal needs ring, and this can make that the calling business user sensation is baffled.
In the prior art, when calling business user discharges group call uplink in Relay MSC, initiate to discharge the proprietary speech channel connection of interoffice that calling business user takies by AnchorMSC, Relay MSC can discharge the dedicated channel that calling business user takies behind the proprietary speech channel connection message of the release interoffice of receiving Anchor MSC, simultaneously Relay MSC need assign to calling business user on the group-calling channel in its sub-district, place, and these two processes are carried out simultaneously.Anchor MSC can not know that Relay MSC assigns to calling business user the process of group-calling channel, if the proprietary traffic of the interoffice that the release calling business user that Anchor MSC is too early takies connects, Relay MSC will be too early the dedicated channel that uses of release calling business user, and this moment, calling business user may also not insert the group-calling channel of its sub-district, place, so calling business user can be because have lost dedicated channel and leaving group-calling too early.As seen, prior art is because there be conflicting of processing sequential in RelayMSC and Anchor MSC, and there is leak in the processing of main call service user release multi call uplink in the Relay MSC.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of in Relay MSC main call service user release multi call uplink method, Relay MSC conflicts with the processing of Anchor MSC in the solution prior art, when guaranteeing in Relay MSC main call service user release multi call uplink, calling business user remains in the group calling.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions:
A kind of main call service user release multi call uplink method may further comprise the steps:
A, calling business user send group call uplink release request by the base control at place to described Tandem Mobile Switching Center;
B, described Tandem Mobile Switching Center assign to calling business user on the group-calling channel of sub-district, calling business user place;
C, described Tandem Mobile Switching Center discharge the dedicated channel that the proprietary speech channel of interoffice is connected and described calling business user takies between described Tandem Mobile Switching Center that described calling business user takies and the master control switching center.
Method of the present invention preferably, after described steps A, further comprises following steps:
A1, Controlling MSC are changed to idle condition with the group call uplink state, and the broadcast upstream free time.
Method of the present invention, described step B specifically may further comprise the steps:
B1, described Tandem Mobile Switching Center send assignment message by the base control to the calling business user place, send the message of the group-calling channel parameter of carrying sub-district, described calling business user place to calling business user;
The group-calling channel parameter that B2, described service-user carry according to described message inserts described group-calling channel.
Method of the present invention preferably, behind the described step B2, further may further comprise the steps:
B3, calling business user return described access group calling channel to described Tandem Mobile Switching Center and finish message by the base control at place.
Method of the present invention, the described Tandem Mobile Switching Center that the calling business user of release described in the described step C takies is connected with the proprietary speech channel of interoffice between the master control switching center, specifically may further comprise the steps:
C1, described Tandem Mobile Switching Center release message between the Controlling MSC forwarding office starts the proprietary speech channel of the described interoffice of release and connects;
C2, Controlling MSC are finished the proprietary speech channel of interoffice and are connected release according to described interoffice release message.
Method of the present invention preferably, further may further comprise the steps behind the described step C2:
C3, Controlling MSC return the proprietary speech channel of interoffice to described Tandem Mobile Switching Center and discharge successful message.
Method of the present invention, the dedicated channel that the release calling business user described in the described step C takies specifically may further comprise the steps:
C4, described Tandem Mobile Switching Center release order to the base control transmission dedicated channel at calling business user place;
C5, described base control release order according to described dedicated channel, discharge described dedicated channel.
Method of the present invention preferably, behind the described step C5, further may further comprise the steps:
C6, described base control return dedicated channel to described Tandem Mobile Switching Center and discharge success message.
As can be seen from the above technical solutions, the present invention has following advantage compared with prior art:
At first, owing in Relay MSC, initiate the situation that VGCS calls out for calling business user, when main call service user release multi call uplink, after Relay MSC receives the release group call uplink request of calling business user transmission, calling business user is assigned on the group-calling channel of its sub-district, place, after assignment is finished, discharge the dedicated channel that the proprietary speech channel of interoffice is connected and calling business user takies between Relay MSC that calling business user is connected to Anchor MSC and the Anchor MSC in this sub-district by Relay MSC.This programme has solved that Relay MSC conflicts with the processing of Anchor MSC in the prior art, and when having guaranteed in Relay MSC main call service user release multi call uplink, calling business user is access group calling channel and can leaving group-calling smoothly.
In addition, the inventive method do not need to change the existing systems networking mode, thereby in actual applications, implementation cost is cheap, is simple and easy to and implements.
Description of drawings
Fig. 1 is a VGCS logical concept schematic diagram;
Fig. 2 is the method flow schematic diagram of the embodiment of the invention 1;
Fig. 3 is that a kind of message flow of the embodiment of the invention 1 is to schematic diagram;
Fig. 4 is that the another kind of message flow of the embodiment of the invention 1 is to schematic diagram.
Embodiment
Core concept of the present invention is, when release is up when calling business user is initiated group calling in Relay MSC after, Relay MSC at first assigns to calling business user on the group-calling channel, after assignment is finished, start to be discharged the Relay MSC that is connected with calling business user is connected with the proprietary speech channel of interoffice between the Anchor MSC by Relay MSC, finish the proprietary speech channel of described interoffice and connect release, RelayMSC discharges the dedicated channel that calling service takies in this sub-district simultaneously, be Relay MSC finish assign to calling business user on the group-calling channel after, carry out release to the dedicated channel of calling service.
Figure 1 shows that VGCS logical concept schematic diagram, the voice group call service 1 among the figure, voice group call service 2, voice group call service 3 represent to be predefined in the VGCS in the network respectively; The group id (Group ID) that A, B, C, D are illustrated respectively in the network signatory VGCS is respectively the service-user of a, b, c, d; I, II, III, IV are respectively VGCS area identification (Group call area ID); W, x, y, z are illustrated respectively in the fixing or mobile subscriber who is identified as dispatcher (Dispatcher) in the network.
Understand for those skilled in the art VGCS how of the present invention is had generally, the logical concept of VGCS done detailed explanation below in conjunction with Fig. 1:
1, VGCS calls out to be specially and makes a calling subscriber or caller dispatcher can be established to targeted customer's voice group call service.Wherein, VGCS is predefined in the network, by group id and group call region sign unique identification.As above the group id among the figure: a and group call region identify: I has identified voice group call service 1.
2, calling subscriber and targeted customer all can be service-user or dispatcher user.
3, the targeted customer refer to be arranged in the VGCS zone by by service-user of exhaling group id to identify or dispatcher user.Target service user should be come " notice " group calling to take place with group id by network, rather than passes through the mode of " paging "; Target dispatcher user should call out by called identification.After service-user enters the VGCS zone, receive corresponding VGCS notice after, can become the target service user.The target service user who leaves the VGCS zone will stop targeted customer's identity.As above the party A-subscriber among the group call region I is the targeted customer of voice group call service 1 among the figure, and extra-regional party A-subscriber and other user (B, C etc.) are not the targeted customers of voice group call service 1.
4, VGCS calls out and be based upon (the VGCS zone is pre-configured in the network) in the VGCS zone that is made of the sub-district.When service-user is initiated VGCS when calling out, the VGCS zone will be made a call the sub-district, place by service-user and the group id dialed is unique determines.Initiate the dispatcher that VGCS calls out and to be connected to its corresponding VGCS zone, and whether network should identify according to the dispatcher and verify the dispatcher and can make a call.A dispatcher can be preconfigured in a plurality of VGCS callings by network, the dispatcher determines the VGCS of its initiation by travelling carriage International ISDN comprehensive service digital net number (Mobile StationInternational Integrated Services Digital Network Number the is called for short MSISDN) mode that makes a call that contains the VGCS reference.Behind the VGCS call setup, all dispatchers can be switched on, and a VGCS passage all can be set up in each sub-district in the VGCS zone.The group calling passage is a public passage, and the service-user in the sub-district all can be monitored this passage.In the VGCS zone, have only the service-user mobile phone of storage respective sets ID in the SIM card just can join VGCS.When service-user passes through VGCS passage access network, need not and network interaction message, the speed of access is faster than common point-to-point call paging.
5, VGCS call out only permit at any time 1 speaker's service-user and at the most 5 dispatchers talk simultaneously.Dispatcher user should be able to hear the speech of other speakers except that own, and hearer's service-user can be heard all speaker users' speech.When the dispatcher talked, speaker's service-user should obtain listening indication.The signaling that the dispatcher can talk at any time and need not to add wishes that the service-user of speech then needs additional signaling to indicate it to think speech.When not having speaker's service-user to exist, hearer's service-user just may become speaker's service-user.Service-user obtains the floor according to the mode that gets earlier first, and need not formation.When ringing off, speaker's service-user determine not have speaker's service-user to exist to network indication or network by mechanism such as timer expiries.
If 6 VGCS have set up success, then network should subscriber call, so that the calling subscriber can talk.System should offer the mechanism that service-user becomes the speaker.
The processing of authentication, encryption can be arranged dispatcher and calling business user during 7, VGCS calls out.
The VGCS that 8, in same VGCS zone, can have a plurality of different group ids simultaneously.In different VGCS zones, also can there be the group calling of a plurality of identical group ids simultaneously.
9, the VGCS calling can be by calling business user, and the dispatcher of mandate or network discharge.The caller dispatcher only taken up after, can discharge VGCS.If no voice timer expiry in the VGCS process, network is call release automatically.Service-user and dispatcher also can leaving group-callings and do not influence remainder and continue conversation.The member who leaves VGCS can also return group calling by the mode of dialing group calling.
If 10 service-users (comprising speaker's service-user and hearer's service-user) leave the VGCS zone, then this service-user should leave VGCS, and is unaffected but VGCS still continues.
11, VGCS calls out and can support roaming.
12, service-user can activate or activate group id, and the information of deexcitation is stored in the service-user terminal SIM card with group identity information.If there is the group calling of high priority to take place, then the service-user terminal might stop activating group id and participate in VGCS.If dispatcher user is simultaneously as service-user and the same group id of having contracted when then this dispatcher user is in the VGCS zone of correspondence, should activate corresponding group id, to avoid dispatcher's the paging and the conflict of notice (containing group id).
When 13, the VGCS zone surpasses the coverage of a MSC, have a plurality of MSC in this group calling, controlling MSC wherein is Anchor MSC, and other MSC are Relay MSC.Anchor MSC is responsible for whole calling, and the data of management have VGCS cell list in VGCS attribute, dispatcher tabulation, Relay MSC tabulation, the AnchorMSC, VGCS Status Flag (whether ongoing).The data that Relay MSC is in charge of have VGCS cell list in the Relay MSC, Anchor MSC sign, VGCS Status Flag (whether ongoing).During a VGCS calls out, a plurality of Relay MSC can be arranged, also can not have Relay MSC.
Service-user is initiated VGCS and is called out, specifically be on travelling carriage, to import group id number by service-user, select the VGCS COS to initiate VGCS and call out, the group call region sign will make a call the place cell ID and the group id dialed is unique determines by service-user.Group id and group call region sign constitute group call reference (Group Call Reference) and come unique VGCS calling of determining, and be as follows:
| The group call region sign | Group id |
Wherein, the length range of group id is 1～6; Group call region identifies a VGCS zone in unique marked network.
A VGCS in the unique marked network of group call reference, group call reference is made of group id and group call region sign.
Service-user is initiated VGCS in Relay MSC after, Relay MSC is that calling business user is set up a proprietary speech channel connection of interoffice that is connected on the Anchor MSC, and in its sub-district, place, distribute a dedicated channel for calling business user, thereby calling business user initiates VGCS in Relay MSC after, take a dedicated channel in its sub-district, place, and take Relay MSC and be connected with the proprietary speech channel of interoffice between the Anchor MSC.During main call service user release multi call uplink, need to discharge the dedicated channel in the sub-district, place of its use, and the Relay MSC that takies is connected with the proprietary speech channel of interoffice between the Anchor MSC, and the group-calling channel that joins in its sub-district, place gets on.
Put case in order to allow those of skill in the art of the present invention better understand technology of the present invention,, the present invention be described in further detail below in conjunction with accompanying drawing and specific embodiment:
Embodiment 1:
Figure 2 shows that the inventive method schematic flow sheet, as shown, this method may further comprise the steps:
Step S201: calling business user sends group call uplink release indication by the BSS at place to described Relay MSC.
When calling business user needs releasing voice group call uplink, send voice group call uplink to the BSS at its place and discharge indication, after this BSS receives this indication, the Relay MSC at its place is issued in this indication, notify this Relay MSC releasing voice group call uplink.
Step S202:Relay MSC assigns to calling business user on the group-calling channel.
After Relay MSC receives this notice, change the group calling Status Flag that is write down into the free time, and notify all BSS in this MSC scope, the broadcasting current speech group call uplink free time.And this Relay MSC discharges to Anchor MSC notice group call uplink.
After Relay MSC receives this notice, execution assigns to operation on the group-calling channel with calling business user, specifically: Relay MSC sends the message that calling business user is assigned to the group-calling channel of its sub-district, place to the BSS at calling business user place, after this BSS receives this message, send the message of the parameter of carrying this group-calling channel to calling business user, after calling business user receives this message, according to entrained group-calling channel parameter, be linked on the corresponding group-calling channel, and after access is finished, return complete message to the BSS at its place, this BSS will return the message of assignment calling business user success to Relay MSC.
Step S203:Relay MSC discharges the dedicated channel in this sub-district that calling business user takies, and the Relay MSC that takies of calling business user is connected with the proprietary speech channel of interoffice between the Anchor MSC.
Relay MSC receives after calling business user successfully assigns to the notice of group-calling channel, discharge the dedicated channel in its sub-district, place that calling business user takies, and the RelayMSC that takies of calling business user is connected with the proprietary speech channel of interoffice between the Anchor MSC.Specific as follows:
For discharging the dedicated channel that calling business user takies, Relay MSC sends to the BSS at calling business user place and discharges the dedicated channel instruction, this BSS receives after this releases order, discharge the former calling business user dedicated channel of distributing to, after release is finished, return release to Relay MSC and finish notice.
Be connected with the proprietary speech channel of interoffice between the Anchor MSC for being released to Relay MSC that calling business user takies.Relay MSC sends the message that discharges the proprietary speech channel connection of interoffice to Anchor MSC, and notice Anchor MSC discharges this connection, after Anchor MSC receives this notice, returns the proprietary speech channel connection of interoffice to Relay MSC and discharges the message of finishing.
The release that is connected with the proprietary speech channel of interoffice between the Relay MSC for the shared dedicated channel of calling service and shared Anchor MSC in no particular order in this step, promptly can discharge the dedicated channel that it takies earlier, also can discharge the proprietary speech channel of interoffice earlier and connect.
Figure 3 shows that the corresponding a kind of message flow chart of present embodiment method, as shown, calling business user is in the sub-district that Relay MSC covers.After VGCS sets up successfully, when calling business user needs releasing voice group call uplink, send up release request message to Relay BSS, notice Relay BSS discharges the voice group call uplink that calling business user takies; After Relay BSS receives up release request message, send up release notice to Relay MSC, notice Relay MSC discharges group call uplink; After Relay MSC received this notice, the group call uplink sign that Relay MSC is write down changed " free time " into, and the BSS of all in the group call region sends up release broadcasting command under this MSC, and notice Relay BSS broadcasts the current group call uplink free time.
Relay MSC simultaneously receives the group call uplink release notice that Relay BSS sends, after knowing that the user asks to discharge group call uplink, send up release notice (going up line flag) to Anchor MSC, notice AnchorMSC main call service user release multi call uplink, after Anchor MSC receives up release notice (going up line flag), change the group call uplink sign of record into " free time ", and the BSS of all in the group call region sends up release broadcasting command under this MSC, and notice Anchor BSS broadcasts the current group call uplink free time.
After Relay MSC sends up release broadcasting command, send the group-calling channel assignment request message to the Relay at calling business user place BSS, request Relay BSS assigns to calling business user on the group-calling channel; After Relay BSS receives the group-calling channel assignment request message, send the group calling assignment message to calling business user, and in the group calling assignment message, carry will be with the group-calling channel parameter of the group-calling channel that calling service assigned to; After calling business user receives the group calling assignment message, group-calling channel parameter according in the message is linked into specified group-calling channel, and after access, return the group calling assignment to Relay BSS and finish message, notice Relay BSS calling business user successfully is linked into the group calling passage; Relay BSS receives after this access finishes notice, returns assignment to Relay MSC and finishes message, and notice Relay MSC has finished calling business user is assigned to group-calling channel.
Relay MSC receives after assignment finishes message, carrying out release was that calling business user is set up, the calling business user special use originally, Relay MSC is connected with the proprietary speech channel of interoffice between the Anchor MSC, send release message to Anchor MSC, notice Anchor MSC discharges the proprietary speech channel of this interoffice and connects, and after Anchor MSC receives release message, discharges the proprietary speech channel of this interoffice and connects, and return Release complete to Relay MSC, the proprietary speech channel of indication interoffice connects to discharge to be finished.
After Relay MSC sends release message, send the dedicated channel release command to the Relay at calling business user place BSS, it was the dedicated channel that calling business user distributes originally that indication Relay BSS discharges, after RelayBSS receives this order, carry out and discharge the dedicated channel operation, dedicated channel returns the dedicated channel Release complete to RelayMSC after discharging and finishing, and notice Relay MSC dedicated channel discharges to be finished.
So far, the release group call uplink of calling business user is finished.Calling business user has discharged take up, and adds group-calling channel, becomes hearer user.
Figure 4 shows that the another kind of message flow schematic diagram of this implementation method, as shown, different is for this figure and message flow shown in Figure 3, in this figure finish calling business user assigned to group-calling channel after, Relay MSC indication Relay BSS earlier discharges dedicated channel, the execution dedicated channel discharges, and the back is carried out and discharged the proprietary speech channel connection of interoffice.
More than a kind of main call service user release multi call uplink method provided by the present invention is 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 (8)
1. a main call service user release multi call uplink method is characterized in that, may further comprise the steps:
A, calling business user send group call uplink release request by the base control at place to described Tandem Mobile Switching Center;
B, described Tandem Mobile Switching Center assign to calling business user on the group-calling channel in the sub-district, calling business user place;
C, described Tandem Mobile Switching Center discharge the dedicated channel that the proprietary speech channel of interoffice is connected and described calling business user takies between described Tandem Mobile Switching Center that described calling business user takies and the master control switching center.
2. main call service user release multi call uplink method according to claim 1 is characterized in that, after described steps A, further comprises following steps:
A1, Controlling MSC are changed to idle condition with the group call uplink state, and the broadcast upstream free time.
3. main call service user release multi call uplink method according to claim 1 and 2 is characterized in that, described step B specifically may further comprise the steps:
B1, described Tandem Mobile Switching Center send assignment message by the base control to the calling business user place, send the message of the group-calling channel parameter of carrying sub-district, described calling business user place to calling business user;
The group-calling channel parameter that B2, described calling business user carry according to described message inserts described group-calling channel.
4. main call service user release multi call uplink method according to claim 3 is characterized in that, behind the described step B2, further may further comprise the steps:
B3, calling business user return described access group calling channel to described Tandem Mobile Switching Center and finish message by the base control at place.
5. main call service user release multi call uplink method according to claim 1 and 2, it is characterized in that, the described Tandem Mobile Switching Center that the calling business user of release described in the described step C takies is connected with the proprietary speech channel of interoffice between the master control switching center, specifically may further comprise the steps:
C1, described Tandem Mobile Switching Center release message between the Controlling MSC forwarding office starts the proprietary speech channel of the described interoffice of release and connects;
C2, Controlling MSC are finished the proprietary speech channel of interoffice and are connected release according to described interoffice release message.
6. main call service user release multi call uplink method according to claim 5 is characterized in that, further may further comprise the steps behind the described step C2:
C3, Controlling MSC return the proprietary speech channel of interoffice to described Tandem Mobile Switching Center and discharge successful message.
7. main call service user release multi call uplink method according to claim 1 and 2 is characterized in that, the dedicated channel that the release calling business user described in the described step C takies specifically may further comprise the steps:
C4, described Tandem Mobile Switching Center release order to the base control transmission dedicated channel at calling business user place;
C5, described base control release order according to described dedicated channel, discharge described dedicated channel.
8. main call service user release multi call uplink method according to claim 7 is characterized in that, behind the described step C5, further may further comprise the steps:
C6, described base control return dedicated channel to described Tandem Mobile Switching Center and discharge success message.
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| CN102480690A (en) * | 2010-11-25 | 2012-05-30 | 普天信息技术研究院有限公司 | Group calling releasing method in group system |
| CN103067877B (en) * | 2011-10-21 | 2016-08-10 | 华为技术有限公司 | Cluster communication service realization method and system, relay MSC, controlling MSC |
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| US20030048764A1 (en) * | 2001-06-29 | 2003-03-13 | David Diep | Method and system for group call service |
| CN1533678A (en) * | 2001-07-19 | 2004-09-29 | ����ɭ�绰�ɷ�����˾ | Push-to-talk and push-to-confenence in a CDMA wireless communications system |
| CN1678092A (en) * | 2004-04-02 | 2005-10-05 | 华为技术有限公司 | Method for releasing open-channel cell resource |
-
2006
- 2006-07-04 CN CN2006100984133A patent/CN100407820C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000069189A1 (en) * | 1999-05-10 | 2000-11-16 | Ericsson, Inc. | Apparatus and methods for conducting group calls in wireless communications systems |
| US20030048764A1 (en) * | 2001-06-29 | 2003-03-13 | David Diep | Method and system for group call service |
| CN1533678A (en) * | 2001-07-19 | 2004-09-29 | ����ɭ�绰�ɷ�����˾ | Push-to-talk and push-to-confenence in a CDMA wireless communications system |
| CN1678092A (en) * | 2004-04-02 | 2005-10-05 | 华为技术有限公司 | Method for releasing open-channel cell resource |
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| CN1901701A (en) | 2007-01-24 |
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