CN100493218C - Method and system for occupying group call - Google Patents

Method and system for occupying group call Download PDF

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Publication number
CN100493218C
CN100493218C CNB2006100730175A CN200610073017A CN100493218C CN 100493218 C CN100493218 C CN 100493218C CN B2006100730175 A CNB2006100730175 A CN B2006100730175A CN 200610073017 A CN200610073017 A CN 200610073017A CN 100493218 C CN100493218 C CN 100493218C
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bss
sccp
new speaker
amsc
message
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CN1984387A (en
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陈德
柳光
王斐
沈敏军
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The method comprises: a) when the priority of speak side newly participating the session is higher than the one of the original speaking side, the newly participating side interacts with the base station sub-system (BBS) to request the occupation of uplink channel, and the BBS interacts with the anchor mobile service center (AMSC) to establish the signaling connection control part (SCCP) connection corresponding to the newly participating side; b)BBS indicates that the newly participating side makes uplink occupation to AMSC through the SCCP connection corresponding to the newly participating side, and releases the original speak side.

Description

The occupying group call method and system
Technical field
The present invention relates to the group calling technology in the wireless trunking communication system, relate in particular to the occupying group call method and system.
Background technology
Usually be called the wireless trunking communication system of group system for short, be a kind of less expensive of growing up in recent years, command dispatching and communication system more flexibly, be widely used in units such as government bodies, energy traffic, airport harbour, industrial and mining enterprises, fire-fighting police, water conservancy and military affairs, in order to satisfy the needs of constituent parts intercommunication.
The most basic business that group system provides is voice group call service (VGCS).VGCS allows the user to set up and belongs to a certain given service area and have the interior a plurality of users' of the cluster group of identical group id (ID) calling, and wherein, service area is made up of the sub-district that several belong to same mobile services switching centre (MSC) or different MS C.VGCS adopts semiduplex mode, and the user in the cluster group can become speaker during calling out, but any one constantly only allow a speaker, and other user is a listener in this cluster group.After speaker was wound up a speech, all were with becoming speaker by press-and-talk (PTT) pattern per family.
Fig. 1 is the structural representation of core net in the group system.Referring to Fig. 1, the core net in the group system comprises: Gateway Mobile Switching Center (GMSC), anchor mobile services switching centre (AMSC), relaying mobile services switching centre (RMSC), Group Call Register (GCR), attaching position register (HLR) and VLR Visitor Location Register (VLR).Wherein each AMSC and RMSC all link to each other with GCR with separately VLR, and AMSC can link to each other with a plurality of RMSC.
The user of group system can belong to a plurality of different cluster groups, has different priority levels in different cluster groups.The other user of high priority can be in the other user's speech of low priority be carried out, send the uplink group cal request, interrupt the other user's of low priority speech and make the other user of high priority become speaker, like this, just existing currently has speaker just in uplink group cal channel speech, and how listener initiates the problem of uplink group cal request.
Adopting in the occupying group call method of 1.0 channel modes at present, using down channel to send Indication message indicates the user in the cluster group to use which kind of up channel to send the uplink group cal request, after user in the cluster group receives Indication message by down channel, select to send the up channel of uplink group cal request according to Indication message.
Fig. 2 illustrates the flow chart of existing occupying group call method.In Fig. 2, this method may further comprise the steps:
In step 201, cell base station judges whether current area uplink group cal channel is idle, if the notification message that the expression group-calling channel can be used then is set; Otherwise it is unavailable that notification message is set to group-calling channel.
In step 202, cell base station sends to each user in the group by down channel with notification message.
In step 203, the user receives the notification message of sub-district, current place in the group, but is expressed as the group-calling channel time spent when this notification message, adopts group-calling channel to initiate the uplink group cal request; Otherwise, adopt the RACH channel to initiate the uplink group cal request.
So far, finish the flow process of existing occupying group call method.
Interrupt former speaker and after seizing the data feedback channel that comprises signalling path and voice channel, within the regular hour, discharge former speaker in new speaker.Therefore can have two speaker simultaneously before former speaker is released, and MSC gives tacit consent to after new speaker takies data feedback channel, former speaker is discharged immediately.When having two speaker simultaneously, whichsoever speaker sends message to MSC, MSC all with this message at object think new speaker, promptly MSC obscures two simultaneous speaker mutually.
Summary of the invention
In view of this, the invention provides a kind of occupying group call method, can make MSC know and distinguish simultaneous two speaker.This method may further comprise the steps:
When A. the priority of new speaker is higher than the priority of former speaker, new speaker and base station sub-system BSS are mutual, request is carried out data feedback channel and is seized, and BSS is mutual with anchor mobile services switching centre AMSC, sets up the SCCP SCCP connection corresponding to new speaker;
B.BSS connects by the SCCP corresponding to new speaker that sets up, and indicates new speaker to AMSC and carries out uplink rob, and discharge former speaker.
Wherein, the described new speaker request BSS of steps A carries out data feedback channel and seizes and comprise:
New speaker sends to the priority of self BSS and carries out up access request;
BSS preserves the priority of the new speaker receive, confirm to have received up access request to new speaker, and BSS broadcasts the priority of new speaker, indicates to exist and carries out the new speaker that data feedback channel is seized;
After new speaker received the affirmation that comes from BSS, request BSS set up being connected between this new speaker and the group-calling channel.
Wherein, described new speaker sends to self priority BSS and carries out up access request and is: new speaker sends the up access request message of the priority that carries this new speaker to BSS;
Described BSS confirms to have received that up access request is to new speaker: BSS returns up access confirmation message to new speaker;
Described BSS broadcasts the priority of new speaker, indicates to exist to carry out the new speaker that data feedback channel seizes and be: BSS sends up busy message with form all users in the sub-district of this BSS of broadcasting;
Described new speaker request BSS sets up being connected between this new speaker and the group-calling channel: new speaker sends the link setup Indication message to BSS.
Preferably, step B is described to be indicated new speaker to AMSC and carries out uplink rob and discharge between the former speaker, further comprises:
B0.BSS returns link setup indication acknowledge message to new speaker, indicates the link setup success.
Preferably, after the described step B0, this method further comprises: new speaker speech.
Wherein, the described foundation of steps A comprises corresponding to the SCCP connection of new speaker:
BSS is after receiving the connection requests of setting up between new speaker and the group-calling channel, for new speaker is distributed the SCCP hyphen, and will represent the sign of new speaker and the SCCP hyphen that is distributed to send to AMSC, the SCCP that request is set up corresponding to this new speaker connects;
AMSC preserves the sign and the SCCP hyphen of the new speaker of representative that receives, and confirms to have accepted to set up the SCCP connection requests to BSS.
Wherein, on behalf of the sign of new speaker and the SCCP hyphen that distributed, described BSS will send to AMSC, and the SCCP that request is set up corresponding to this new speaker is connected to: the SCCP that BSS sends the SCCP hyphen of the sign that carries the new speaker of representative and correspondence to AMSC is connected and sets up request message;
Described AMSC confirms that to BSS having accepted to set up the SCCP connection requests is: AMSC returns the SCCP connection to BSS and sets up acknowledge message.
Preferably, after the described step B, this method further comprises:
BSS and AMSC are mutual, and the SCCP corresponding to new speaker that deletion is set up connects.
Wherein, described deletion SCCP connection comprises:
BSS sends to AMSC with the SCCP hyphen corresponding to new speaker that is distributed, and the SCCP corresponding to this new speaker that the request deletion is set up connects;
AMSC is according to the request that receives, the sign and the corresponding SCCP hyphen of the new speaker of representative of being preserved from self deletion, and confirm to have accepted to delete the SCCP connection requests to BSS.
Wherein, described BSS sends to AMSC with the SCCP hyphen corresponding to new speaker that is distributed, and the SCCP corresponding to this new speaker that the request deletion is set up is connected to: BSS connects deletion message to the SCCP that AMSC sends the SCCP hyphen that carries new speaker correspondence;
Described AMSC confirms that to BSS having accepted to delete the SCCP connection requests is: AMSC sends SCCP to BSS and connects the deletion acknowledge message.
Wherein, set up SCCP in advance and connect, then the described foundation of steps A comprises corresponding to the SCCP connection of new speaker:
BSS is after receiving the up access request that comes from new speaker, the sign of the new speaker of representative is corresponding with the hyphen that the SCCP that sets up in advance is connected, and this corresponding relation sent to AMSC, the SCCP that request allows new speaker to take and sets up in advance connects;
AMSC preserves the sign of the new speaker of representative receive and the corresponding relation of SCCP hyphen, and confirms to have accepted new speaker to BSS and take the SCCP connection requests of setting up in advance.
Wherein, described BSS sends to AMSC with described corresponding relation, and the SCCP that request is set up corresponding to this new speaker is connected to: the SCCP that BSS sends the SCCP hyphen of the sign that carries the new speaker of representative and correspondence to AMSC is connected and takies request message;
Described AMSC confirms to have accepted new speaker to BSS and takies the SCCP connection requests of setting up in advance and be: AMSC returns SCCP to BSS and connects and take acknowledge message.
Preferably, after the described step B, this method further comprises:
BSS and AMSC are mutual, remove the corresponding relation between described new speaker and the hyphen that the SCCP that sets up in advance is connected.
Wherein, described releasing corresponding relation comprises:
BSS sends to AMSC with the hyphen that the SCCP that sets in advance connects, and request is removed new speaker to taking that described SCCP connects;
AMSC is according to the request that receives, the corresponding relation between the sign of the new speaker of representative of being preserved from self deletion and the corresponding SCCP hyphen, and confirm to have accepted to remove the request that takies to BSS.
Wherein, described BSS sends to AMSC with the hyphen that the SCCP that sets in advance connects, and request is removed new speaker taking of connecting of described SCCP connected and finish to take message for: BSS sends the SCCP that carries the hyphen that the SCCP that sets up in advance connects to AMSC;
Described AMSC confirms that to BSS having accepted to remove the request that takies is: AMSC sends the SCCP connection to BSS and finishes to take acknowledge message.
Wherein, the described BSS of step B indicates new speaker to AMSC and carries out uplink rob and be:
C1.BSS utilizes described SCCP to connect, and the priority of the new speaker of self preserving is carried in the upstream request message, sends to AMSC;
C2.AMSC preserves the priority of the new speaker that receives, and utilizes described SCCP to connect, and returns the upstream request acknowledge message to BSS.
Preferably, after the described preservation priority of step C2, this method further comprises:
AMSC is carried on the priority of the new speaker of being preserved and transmits in the group calling signaling, sends to relaying mobile services switching centre RMSC, sets up being connected between AMSC and the RMSC.
Wherein, after step C2, this method further comprises:
BSS all users broadcastings in the sub-district of self administering carry the up busy message of the priority of new speaker.
Wherein, the former speaker of the described release of step B is:
BSS sends up release message to former speaker.
Wherein, this method further comprises:
Described former speaker sends the chain rupture request message to BSS, and BSS returns the chain rupture acknowledge message to former speaker again.
The present invention also provides a kind of system that is used for occupying group call, can make MSC know and distinguish simultaneous two speaker.This system comprises:
By the base station sub-system BSS and the anchor mobile services switching centre AMSC of A interface connection, wherein,
BSS receives the request that data feedback channel is seized of carrying out that comes from new speaker, the SCCP SCCP that sets up corresponding to new speaker with AMSC connects, and connect by the SCCP that sets up corresponding to new speaker, indicate new speaker to AMSC and carry out uplink rob, and discharging former speaker, the priority of described new speaker is higher than former speaker.
Wherein, described BSS comprises: air-interface information sending/receiving module, up management message processing module, SCCP link management control module and A interface message sending/receiving module, wherein,
The air-interface information sending/receiving module is used to receive the request that data feedback channel is seized of carrying out that comes from new speaker, and the request that receives is sent to up management message processing module, and the message that this BSS mails to speaker is sent by air interface;
Up management message processing module is used for the request that the data feedback channel that comes from the air-interface information sending/receiving module is seized is handled, indicate new speaker to SCCP link management control module and seize data feedback channel, and by the A interface message sending/receiving module among the BSS, utilize the SCCP that sets up to connect and notify the new speaker of AMSC to carry out uplink rob, and discharge former speaker;
SCCP link management control module is used for the A interface message sending/receiving module by BSS, and the SCCP that sets up corresponding to new speaker with AMSC connects.
Preferably, described BSS further comprises:
Other message processing modules with the described air-interface information sending/receiving module among this BSS, up management message processing module, SCCP link management control module and the intercommunication of A interface message sending/receiving module, be used for receiving the link setup Indication message that comes from described new speaker by described air-interface information sending/receiving module, and after this new speaker and group-calling channel connect, send link setup indication acknowledge message to this new speaker by described air-interface information sending/receiving module.
Wherein, described AMSC comprises: A interface message sending/receiving module, up management message processing module and SCCP link management control module, wherein,
A interface message sending/receiving module is used for sending message and receiving the message that comes from described BSS to BSS;
Up management message processing module is used for obtaining message with last line correlation from described A interface message sending/receiving module;
SCCP link management control module is used for by A interface message sending/receiving module, and the SCCP that sets up corresponding to new speaker with described BSS connects.
Preferably, described AMSC further comprises: with other message processing modules of the A interface message sending/receiving module of this AMSC, up management message processing module and the intercommunication of SCCP link management control module, be used for to AMSC receive and desire sends except that with the message of last line correlation message handle.
Described AMSC further comprises: with other interface message sending/receiving modules of described up management message processing module and other message processing module intercommunications, be used to realize the message transmission between AMSC and other mobile services switching centres.
Use the present invention, can make MSC know and distinguish simultaneous two speaker.Particularly, the present invention has following beneficial effect:
1. the present invention can set up new SCCP (SCCP) connection for new speaker, former speaker MS1 still uses original SCCP to connect, thereby exist at the same time during two speaker MS1 and the MS2, AMSC can come both are distinguished by the SCCP hyphen of each speaker; And after former speaker was released, newly-built SCCP connected deleted, can also save Radio Resource like this.
2. the present invention also can set up a stand-by SCCP connection in advance, and when new speaker occurring, this SCCP that sets up in advance connects by new speaker use, makes AMSC clearly to distinguish simultaneous two speaker by the SCCP hyphen; And, after former speaker is released, finish new speaker to taking that the SCCP that builds in advance connects, and this SCCP connects still existence, then when new speaker occurring once more, can directly use, convenient and swift.
Description of drawings
To make clearer above-mentioned and other feature and advantage of the present invention of those of ordinary skill in the art by describe exemplary embodiment of the present invention in detail with reference to accompanying drawing below, in the accompanying drawing:
Fig. 1 is the structural representation of core net in the group system;
Fig. 2 is the flow chart of existing occupying group call method;
Fig. 3 is the flow chart of occupying group call method among the present invention;
Fig. 4 is the structural representation of occupying group call system in the embodiment of the invention;
Fig. 5 is the signaling process figure of occupying group call method in the embodiment of the invention 1;
Fig. 6 is the signaling process figure of occupying group call method in the embodiment of the invention 2.
Embodiment
For making purpose of the present invention, technical scheme clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 3 shows the method flow diagram that carries out occupying group call according to inventive concept.In Fig. 3, this method comprises:
In step 301, when the priority of new speaker was higher than the priority of former speaker, new speaker was mutual with BSS, and request is carried out data feedback channel and seized, and BSS is mutual with AMSC, sets up corresponding to the SCCP connection of speaker newly.
In step 302, BSS connects by the SCCP corresponding to new speaker that sets up, and indicates new speaker to AMSC and carries out uplink rob, and discharge former speaker.
Fig. 4 shows the structural representation according to the occupying group call system of inventive concept.As shown in Figure 4, this system comprises: by the base station sub-system (BSS) and the AMSC of A interface connection.Wherein, BSS receives the request that data feedback channel is seized of carrying out that comes from new speaker, and the SCCP that sets up corresponding to new speaker with AMSC connects, and BSS connects by the SCCP corresponding to new speaker that sets up, indicate new speaker to AMSC and carry out uplink rob, and discharge former speaker.
BSS among Fig. 4 comprises: air-interface information sending/receiving module, up management message processing module, SCCP link management control module and A interface message sending/receiving module.Wherein, the air-interface information sending/receiving module is used to receive the request that data feedback channel is seized of carrying out that comes from new speaker, the request that receives is sent to up management message processing module, and the message that this BSS mails to speaker is sent by air interface; Up management message processing module is used for the request that comes from the air-interface information sending/receiving module is handled, indicate new speaker to SCCP link management control module and seize data feedback channel, and, utilize the SCCP that sets up to connect and notify the new speaker of AMSC to carry out uplink rob by the A interface message sending/receiving module among the BSS; SCCP link management control module is used for connecting with the SCCP that AMSC sets up corresponding to new speaker by the A interface message sending/receiving module of BSS.Further, BSS also comprise with this BSS in other message processing modules of air-interface information sending/receiving module, up management message processing module, SCCP link management control module and the intercommunication of A interface message sending/receiving module, be used for to BSS receive and desire sends except that with the message of last line correlation message handle.
AMSC among Fig. 4 comprises A interface message sending/receiving module, up management message processing module and SCCP link management control module.Wherein, A interface message sending/receiving module is used for sending message and receiving the message that comes from BSS to BSS; Up management message processing module is used for obtaining message with last line correlation from A interface message sending/receiving module; SCCP link management control module is used for by A interface message sending/receiving module, and the SCCP that sets up corresponding to new speaker with BSS connects.Further, AMSC also comprises other message processing modules with the A interface message sending/receiving module of this AMSC, up management message processing module and the intercommunication of SCCP link management control module, be used for to AMSC receive and desire sends except that with the message of last line correlation message handle.In addition, AMSC also comprises and the up management message processing module of this AMSC and other interface message sending/receiving modules of other message processing module intercommunications, is used to realize the message transmission between AMSC and other MSC such as RMSC.
The method of occupying group call of the present invention is described below by two embodiment.
Embodiment 1
Fig. 5 shows the signaling process figure of occupying group call method in the present embodiment.In Fig. 5, speaker and listener are travelling carriage (MS), and wherein, MS1 is that former speaker, MS2 are that new speaker, MSn represent other travelling carriages except MS1 and MS2 in the sub-district of BSS administration.In addition, the priority of supposing former speaker MS1 is common, and the priority of new speaker MS2 is higher than the priority of former speaker, for example: urgent.
As shown in Figure 5, the occupying group call method of present embodiment may further comprise the steps:
The former speaker MS1 of step 501. listener of all in group speech.
At this moment, the listener in the group is the MS except former speaker MS1 in this group, i.e. MS2 and MSn.
When the new speaker MS2 in step 502～504. is higher than former speaker MS1 in self priority, send up access request (UPLINK_ACCESS) message carry self priority to BSS, request is carried out data feedback channel and is seized, BSS resolves the priority of the speaker that makes new advances from the up access request message that receives, preserve at self, and return up admission confirm (VGCS_UPLINK_GRANT) message to new speaker MS2, indicate and allow new speaker to take up; And BSS sends up busy (UPLINK_BUSY) message with form all MS in the sub-district of this BSS of broadcasting, indicates new speaker and takies data feedback channel.
New speaker MS2 compares the priority of self and the priority of former speaker, the priority of new speaker MS2 is urgent in the present embodiment, the priority of former speaker MS1 is common, the priority of then new speaker is higher, therefore the MS2 judgement self can interrupt former speaker MS1, takies data feedback channel and talks.
Then, the air-interface information sending/receiving module among the BSS receives the up access request message that comes from new speaker MS2, and gives up management message processing module among the BSS with this forwards.The priority that up management message processing module is resolved and preserved new speaker MS2 from up access request message, and up access confirmation message is sent to new speaker MS2 by the air-interface information sending/receiving module; And up management message processing module is also by the busy message of air-interface information sending/receiving module all MS broadcast upstream in the sub-district of this BSS.
In step 505, new speaker MS2 sends the link setup Indication message to BSS, sets up being connected between new speaker MS2 and the group calling passage.
Other message processing modules among the BSS receive the link setup Indication message that comes from new speaker MS2 by the air-interface information sending/receiving module, and this stylish speaker MS2 and group-calling channel connect.
In step 506, BSS and AMSC are mutual, and the SCCP that sets up corresponding to new speaker MS2 connects.
In this step, SCCP link management control module among the BSS is received the link setup Indication message in knowing other message processing modules after, for new speaker MS2 distributes the SCCP hyphen, and the sign that will represent the new speaker MS2 in this group calling and the SCCP hyphen that is distributed are carried on SCCP and are connected and set up in the request message, by the A interface message sending/receiving module among the BSS, A interface via between BSS and the AMSC sends to AMSC.Represent the sign of new speaker MS2 can adopt mode such as command word herein.
SCCP link management control module among the AMSC receives the SCCP connection by the A interface message sending/receiving module among the AMSC and sets up request message, from this message, parse sign and the SCCP hyphen of the new speaker MS2 of representative, and the sign of the new speaker MS2 of preservation representative and the corresponding relation of SCCP hyphen, then, SCCP link management control module among the AMSC is by A interface message sending/receiving module among the AMSC and the A interface message sending/receiving module among the BSS, SCCP connected set up acknowledge message and send to SCCP controlling links administration module among the BSS.Like this, between BSS and AMSC, set up the SCCP connection for new speaker MS2.
In step 507, BSS sends upstream request (UPLINK_REQUEST) message that carries new speaker MS2 priority to AMSC, indicates new speaker MS2 and takies data feedback channel.
Up management message processing module among the BSS is carried on the priority of new speaker MS2 in the upstream request message, by A interface message sending/receiving module among the BSS and the A interface message sending/receiving module among the AMSC, send to the up management message processing module among the AMSC.
In step 508～509, BSS indicates acknowledge message to the link setup that new speaker MS2 sends the success of expression link setup, and new speaker MS2 begins speech.
After MS2 and group-calling channel were connected, other message processing modules among the BSS sent link setup indication acknowledge message by the air-interface information sending/receiving module to new speaker MS2, as the response of link setup Indication message.New speaker MS2 knows that self has successfully taken data feedback channel after receiving link setup indication acknowledge message, then begins other MS speeches in group.
In step 510, AMSC connects by the SCCP that sets up for new speaker, sends upstream request to BSS and confirms (UPLINK_REQUEST_ACK) message.
Up management message processing module among the AMSC is after the priority of having preserved the new speaker in the upstream request message, by A interface message sending/receiving module among the AMSC and the A interface message sending/receiving module among the BSS, the upstream request acknowledge message is sent to up management message processing module among the BSS.
In step 511, BSS all MS broadcasting in the sub-district of self administering carry the up busy message of the priority of new speaker.
In this step, the up management message processing module among the BSS is gone out the up busy information broadcast that carries the priority of new speaker, so that each MS all can be known the priority of new speaker by the air-interface information sending/receiving module.
In step 512, AMSC sends the forwarding group calling signaling (FORW_GROUP CALL_SIGN) of the priority carry new speaker to RMSC, sets up being connected between AMSC and the RMSC.
Other message processing modules among the AMSC obtain the priority of new speaker from up management message processing module, the priority that is obtained is carried in the forwarding group calling signaling, by other interface message sending/receiving modules, RMSC sends to all RMSC, so that can be known the information of new speaker.
In step 513～515, BSS sends up release (UPLINK_RELEASE) message to former speaker MS1, discharges former speaker MS1; Former speaker MS1 sends the chain rupture request message to BSS; BSS returns the chain rupture acknowledge message to former speaker MS1 again.
Up management message processing module among the BSS sends to former speaker MS1 by the air interface sending/receiving module with up release message, and former speaker MS1 is discharged; As the response to up release message, former speaker MS1 is by the air-interface information sending/receiving module among the BSS, and the chain rupture request message is sent to other message processing modules among the BSS; Other message processing modules among the BSS by the air-interface information sending/receiving module, send to former speaker MS1 with the chain rupture acknowledge message after former speaker MS1 is discharged, and indicate to discharge to finish.
In step 516, BSS and AMSC carry out alternately, delete the SCCP that sets up into new speaker MS2 and connect.
At BSS after former speaker MS1 sends up release message, SCCP link management control module among the BSS is by A interface message sending/receiving module among the BSS and the A interface message sending module among the AMSC, SCCP link management control module in AMSC sends SCCP and connects deletion message, has wherein carried the hyphen of the SCCP of new speaker MS2 correspondence; The SCCP hyphen that SCCP link management control module basis among the AMSC receives is deleted the corresponding relation between SCCP hyphen of self preserving and the sign of the representing new speaker MS2, and by A interface message sending/receiving module among the AMSC and the sending/receiving module among the BSS, the SCCP controlling links administration module in BSS sends SCCP and connects the deletion acknowledge message; The sign of the new speaker MS2 of representative that SCCP link management control module deletion among the BSS self is preserved and the corresponding relation of SCCP hyphen.
The operation that deletion SCCP connects in this step only needs BSS to carry out after former speaker MS1 issues up release message in step 513, does not have strict order in time with step 514 and 515.
So far, finish the flow process of occupying group call in the present embodiment.
From said method as seen, present embodiment is that new speaker MS2 has set up new SCCP connection, former speaker MS1 still uses original SCCP to connect, thereby exist at the same time during two speaker MS1 and the MS2, new speaker MS2 all message by the A interface connect by its corresponding SCCP carries, AMSC can come they are distinguished by the SCCP hyphen of each speaker.For example, the sub-district takes place when switching at former speaker MS1, the SCCP of BSS by former speaker MS1 correspondence connects to come to AMSC and sends message, and AMSC determines the speaker that switches by the SCCP hyphen in the message that receives.And for example, two when this is reported the ability of self supporting by class mark updating message, AMSC also can utilize the SCCP hyphen to distinguish.
Embodiment 2
Employing is set up the SCCP ways of connecting in advance and is distinguished simultaneous two speaker in the present embodiment.This kind mode is with the difference of flow process shown in Figure 5: set up the asynchronism(-nization) that SCCP is connected.Particularly, present embodiment is set up SCCP in advance and is connected between BSS and AMSC, and when there being new speaker MS2 to carry out data feedback channel when seizing in the group calling, new speaker takies the SCCP that sets up in advance and connects to come by the A interface and send message.In other words, SCCP link management control module among BSS and the AMSC and A interface message sending module match, and allocate the SCCP hyphen in advance, set up SCCP and connect.
Fig. 6 shows the method flow diagram of occupying group call in the present embodiment.
In step 601～603, the former speaker MS1 listener of all in group speech; When new speaker MS2 is higher than former speaker MS1 in self priority, send the up access request message carry self priority to BSS, BSS resolves the priority of the speaker that makes new advances from the up access request message that receives, preserve at self, return up access confirmation message to new speaker MS2, indicate the new speaker of permission and take up.
Step 501 is identical to 503 operation among the operation of above-mentioned three steps and the embodiment.
In step 604, BSS and AMSC are mutual, and the SCCP that makes new speaker take foundation in advance connects.
After BSS receives the up access message that comes from new speaker, the hyphen that the SCCP that SCCP link management control module among the BSS will be set up in advance connects is corresponding with the sign of the new speaker MS2 of representative, and composition SCCP connection takies request message, by the A interface message sending/receiving module among the BSS, A interface via between BSS and the AMSC sends to AMSC.Represent the sign of new speaker MS2 can adopt mode such as command word herein.
SCCP link management control module among the AMSC receives the SCCP connection by the A interface message sending/receiving module among the AMSC and takies request message, from this message, parse the hyphen that the sign of representing new speaker MS2 and the SCCP that sets up in advance are connected, and the sign of the new speaker MS2 of preservation representative and the corresponding relation of SCCP hyphen, then, SCCP link management control module among the AMSC is by A interface message sending/receiving module among the AMSC and the A interface message sending/receiving module among the BSS, SCCP connected take acknowledge message and send to SCCP controlling links administration module among the BSS.
After BSS and AMSC have all set up the sign of representing new speaker MS2 and corresponding relation that the SCCP that sets up in advance is connected, finished the operation of setting up corresponding to the SCCP connection of new speaker MS2.
In step 605～606, BSS sends up busy message with form all MS in the sub-district of this BSS of broadcasting; New speaker MS2 sends the link setup Indication message to BSS, sets up being connected between new speaker MS2 and the group calling passage; New speaker MS2 sends the link setup Indication message to BSS, sets up being connected between new speaker MS2 and the group calling passage.
Two steps herein and the step 504 among the embodiment 1 and 505 identical.
In step 607～615, BSS sends the upstream request message that carries new speaker MS2 priority to AMSC; BSS indicates acknowledge message to the link setup that new speaker MS2 sends the success of expression link setup, and new speaker MS2 begins speech; AMSC connects by the SCCP that sets up for new speaker, sends the upstream request acknowledge message to BSS; BSS all MS broadcasting in the sub-district of self administering carry the up busy message of the priority of new speaker; AMSC sends the forwarding group calling signaling of the priority carry new speaker to RMSC, sets up being connected between AMSC and the RMSC; BSS sends up release (UPLINK_RELEASE) message to former speaker MS1, discharges former speaker MS1; Former speaker MS1 sends the chain rupture request message to BSS; BSS returns the chain rupture acknowledge message to former speaker MS1 again.
Step 507 is identical to 515 operation among the operation of above-mentioned steps 607 to 615 and the embodiment 1.
In step 616, BSS and AMSC are mutual, finish SCCP the taking connection of new speaker MS2 to setting up in advance.
In this step, SCCP link management control module among the BSS is by A interface message sending/receiving module among the BSS and the A interface message sending module among the AMSC, SCCP link management control module in AMSC sends the SCCP connection and finishes to take message, has wherein carried the hyphen of the SCCP of new speaker MS2 correspondence; The SCCP hyphen that SCCP link management control module basis among the AMSC receives is removed the corresponding relation between SCCP hyphen of self preserving and the sign of the representing new speaker MS2, the SCCP that sets up in advance this moment connects still and keeps, and no longer is that new speaker MS2 is used just.Then, the SCCP link management control module among the AMSC is by A interface message sending/receiving module among the AMSC and the sending/receiving module among the BSS, and the SCCP controlling links administration module in BSS sends the SCCP connection and finishes to take acknowledge message; SCCP link management control module among the BSS is removed the sign of the new speaker MS2 of representative that self preserves and the corresponding relation of SCCP hyphen.
So far, finish the method flow of occupying group call in the present embodiment.
Setting up SCCP in the present embodiment in advance connects, when having two speaker at the same time, new speaker takies this SCCP that builds in advance and connects, and after former speaker is released, new speaker finishes to take, and SCCP connects and still to exist, so that be the new speaker service in the follow-up occupying group call.As seen, the method for present embodiment also can make AMSC clearly distinguish simultaneous two speaker.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (28)

1, a kind of occupying group call method is characterized in that, this method comprises:
When A. the priority of new speaker is higher than the priority of former speaker, new speaker and base station sub-system BSS are mutual, request is carried out data feedback channel and is seized, and BSS is mutual with anchor mobile services switching centre AMSC, sets up the SCCP SCCP connection corresponding to new speaker;
B.BSS connects by the SCCP corresponding to new speaker that sets up, and indicates new speaker to AMSC and carries out uplink rob, and discharge former speaker.
2, the method for claim 1 is characterized in that, the described new speaker request BSS of steps A carries out data feedback channel and seizes and comprise:
New speaker sends to the priority of self BSS and carries out up access request;
BSS preserves the priority of the new speaker receive, confirm to have received up access request to new speaker, and BSS broadcasts the priority of new speaker, indicates to exist and carries out the new speaker that data feedback channel is seized;
After new speaker received the affirmation that comes from BSS, request BSS set up being connected between this new speaker and the group-calling channel.
3, method as claimed in claim 2 is characterized in that, described new speaker sends to self priority BSS and carries out up access request and is: new speaker sends the up access request message of the priority that carries this new speaker to BSS;
Described BSS confirms to have received that up access request is to new speaker: BSS returns up access confirmation message to new speaker;
Described BSS broadcasts the priority of new speaker, indicates to exist to carry out the new speaker that data feedback channel seizes and be: BSS sends up busy message with form all users in the sub-district of this BSS of broadcasting;
Described new speaker request BSS sets up being connected between this new speaker and the group-calling channel: new speaker sends the link setup Indication message to BSS.
4, method as claimed in claim 3 is characterized in that, step B is described to be indicated new speaker to AMSC and carry out uplink rob and discharge between the former speaker, further comprises:
B0.BSS returns link setup indication acknowledge message to new speaker, indicates the link setup success.
5, method as claimed in claim 4 is characterized in that, after the described step B0, this method further comprises: new speaker speech.
6, method as claimed in claim 2 is characterized in that, the described foundation of steps A comprises corresponding to the SCCP connection of new speaker:
BSS is after receiving the connection requests of setting up between new speaker and the group-calling channel, for new speaker is distributed the SCCP hyphen, and will represent the sign of new speaker and the SCCP hyphen that is distributed to send to AMSC, the SCCP that request is set up corresponding to this new speaker connects;
AMSC preserves the sign and the SCCP hyphen of the new speaker of representative that receives, and confirms to have accepted to set up the SCCP connection requests to BSS.
7, method as claimed in claim 6, it is characterized in that, on behalf of the sign of new speaker and the SCCP hyphen that distributed, described BSS will send to AMSC, and the SCCP that request is set up corresponding to this new speaker is connected to: the SCCP that BSS sends the SCCP hyphen of the sign that carries the new speaker of representative and correspondence to AMSC is connected and sets up request message;
Described AMSC confirms that to BSS having accepted to set up the SCCP connection requests is: AMSC returns the SCCP connection to BSS and sets up acknowledge message.
8, method as claimed in claim 6 is characterized in that, after the described step B, this method further comprises:
BSS and AMSC are mutual, and the SCCP corresponding to new speaker that deletion is set up connects.
9, method as claimed in claim 8 is characterized in that, described deletion SCCP connects and comprises:
BSS sends to AMSC with the SCCP hyphen corresponding to new speaker that is distributed, and the SCCP corresponding to this new speaker that the request deletion is set up connects;
AMSC is according to the request that receives, the sign and the corresponding SCCP hyphen of the new speaker of representative of being preserved from self deletion, and confirm to have accepted to delete the SCCP connection requests to BSS.
10, method as claimed in claim 9, it is characterized in that, described BSS sends to AMSC with the SCCP hyphen corresponding to new speaker that is distributed, and the SCCP corresponding to this new speaker that the request deletion is set up is connected to: BSS connects deletion message to the SCCP that AMSC sends the SCCP hyphen that carries new speaker correspondence;
Described AMSC confirms that to BSS having accepted to delete the SCCP connection requests is: AMSC sends SCCP to BSS and connects the deletion acknowledge message.
11, method as claimed in claim 2 is characterized in that, sets up SCCP in advance and connects, and then the described foundation of steps A comprises corresponding to the SCCP connection of new speaker:
BSS is after receiving the up access request that comes from new speaker, the sign of the new speaker of representative is corresponding with the hyphen that the SCCP that sets up in advance is connected, and this corresponding relation sent to AMSC, the SCCP that request allows new speaker to take and sets up in advance connects;
AMSC preserves the sign of the new speaker of representative receive and the corresponding relation of SCCP hyphen, and confirms to have accepted new speaker to BSS and take the SCCP connection requests of setting up in advance.
12, method as claimed in claim 11, it is characterized in that, described BSS sends to AMSC with described corresponding relation, and the SCCP that request is set up corresponding to this new speaker is connected to: the SCCP that BSS sends the SCCP hyphen of the sign that carries the new speaker of representative and correspondence to AMSC is connected and takies request message;
Described AMSC confirms to have accepted new speaker to BSS and takies the SCCP connection requests of setting up in advance and be: AMSC returns SCCP to BSS and connects and take acknowledge message.
13, method as claimed in claim 11 is characterized in that, after the described step B, this method further comprises:
BSS and AMSC are mutual, remove the corresponding relation between described new speaker and the hyphen that the SCCP that sets up in advance is connected.
14, method as claimed in claim 13 is characterized in that, described releasing corresponding relation comprises:
BSS sends to AMSC with the hyphen that the SCCP that sets in advance connects, and request is removed new speaker to taking that described SCCP connects;
AMSC is according to the request that receives, the corresponding relation between the sign of the new speaker of representative of being preserved from self deletion and the corresponding SCCP hyphen, and confirm to have accepted to remove the request that takies to BSS.
15, method as claimed in claim 14, it is characterized in that, described BSS sends to AMSC with the hyphen that the SCCP that sets in advance connects, and request is removed new speaker taking of connecting of described SCCP connected and finish to take message for: BSS sends the SCCP that carries the hyphen that the SCCP that sets up in advance connects to AMSC;
Described AMSC confirms that to BSS having accepted to remove the request that takies is: AMSC sends the SCCP connection to BSS and finishes to take acknowledge message.
As claim 2 or 11 described methods, it is characterized in that 16, the described BSS of step B indicates new speaker to AMSC to carry out uplink rob and be:
C1.BSS utilizes described SCCP to connect, and the priority of the new speaker of self preserving is carried in the upstream request message, sends to AMSC;
C2.AMSC preserves the priority of the new speaker that receives, and utilizes described SCCP to connect, and returns the upstream request acknowledge message to BSS.
17, method as claimed in claim 16 is characterized in that, after the described preservation priority of step C2, this method further comprises:
AMSC is carried on the priority of the new speaker of being preserved and transmits in the group calling signaling, sends to relaying mobile services switching centre RMSC, sets up being connected between AMSC and the RMSC.
18, method as claimed in claim 16 is characterized in that, after step C2, this method further comprises:
BSS all users broadcastings in the sub-district of self administering carry the up busy message of the priority of new speaker.
19, the method for claim 1 is characterized in that, the former speaker of the described release of step B is:
BSS sends up release message to former speaker.
20, method as claimed in claim 19 is characterized in that, this method further comprises:
Described former speaker sends the chain rupture request message to BSS, and BSS returns the chain rupture acknowledge message to former speaker again.
21, a kind of occupying group call system is characterized in that this system comprises: the base station sub-system BSS and the anchor mobile services switching centre AMSC that connect by the A interface, wherein,
BSS receives the request that data feedback channel is seized of carrying out that comes from new speaker, the SCCP SCCP that sets up corresponding to new speaker with AMSC connects, and connect by the SCCP that sets up corresponding to new speaker, indicate new speaker to AMSC and carry out uplink rob, and discharging former speaker, the priority of described new speaker is higher than former speaker.
22, system as claimed in claim 21 is characterized in that, described BSS comprises: air-interface information sending/receiving module, up management message processing module, SCCP link management control module and A interface message sending/receiving module, wherein,
The air-interface information sending/receiving module is used to receive the request that data feedback channel is seized of carrying out that comes from new speaker, and the request that receives is sent to up management message processing module, and the message that this BSS mails to speaker is sent by air interface;
Up management message processing module is used for the request that the data feedback channel that comes from the air-interface information sending/receiving module is seized is handled, indicate new speaker to SCCP link management control module and seize data feedback channel, and by the A interface message sending/receiving module among the BSS, utilize the SCCP that sets up to connect and notify the new speaker of AMSC to carry out uplink rob, and discharge former speaker;
SCCP link management control module is used for the A interface message sending/receiving module by BSS, and the SCCP that sets up corresponding to new speaker with AMSC connects.
23, the system as claimed in claim 22 is characterized in that, described BSS further comprises:
Other message processing modules with the described air-interface information sending/receiving module among this BSS, up management message processing module, SCCP link management control module and the intercommunication of A interface message sending/receiving module, be used for receiving the link setup Indication message that comes from described new speaker by described air-interface information sending/receiving module, and after this new speaker and group-calling channel connect, send link setup indication acknowledge message to this new speaker by described air-interface information sending/receiving module.
24, system as claimed in claim 21 is characterized in that, described AMSC comprises: A interface message sending/receiving module, up management message processing module and SCCP link management control module, wherein,
A interface message sending/receiving module is used for sending message and receiving the message that comes from described BSS to BSS;
Up management message processing module is used for obtaining message with last line correlation from described A interface message sending/receiving module;
SCCP link management control module is used for by A interface message sending/receiving module, and the SCCP that sets up corresponding to new speaker with described BSS connects.
25, system as claimed in claim 24, it is characterized in that, described AMSC further comprises: with other message processing modules of the A interface message sending/receiving module of this AMSC, up management message processing module and the intercommunication of SCCP link management control module, be used for to AMSC receive and desire sends except that with the message of last line correlation message handle.
26, system as claimed in claim 25, it is characterized in that, described AMSC further comprises: with other interface message sending/receiving modules of described up management message processing module and other message processing module intercommunications, be used to realize the message transmission between AMSC and other mobile services switching centres.
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