CN100438657C - Protection method and system after service user engrossing group-calling uplink channel - Google Patents
Protection method and system after service user engrossing group-calling uplink channel Download PDFInfo
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- CN100438657C CN100438657C CNB2006100987269A CN200610098726A CN100438657C CN 100438657 C CN100438657 C CN 100438657C CN B2006100987269 A CNB2006100987269 A CN B2006100987269A CN 200610098726 A CN200610098726 A CN 200610098726A CN 100438657 C CN100438657 C CN 100438657C
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Abstract
The present invention discloses a protection method and a system after a service user occupies a group-calling uplink channel, wherein the method comprises the steps: a. the service user obtains the group-calling uplink channel; b. an uplink channel protection timer is launched; c. if the uplink channel protection timer is overtime, the uplink channel occupied by the service user is released; the system comprise a BSS module and an MSC module, wherein the MSC module further comprises an uplink channel timing protection module. The present invention uses the uplink channel protection timer to perform the timing protection of the uplink channel occupied by the service user, and thus, the problem of the deadlock of the group calling uplink channel is solved.
Description
Technical field
The present invention relates to communication technique field, relate in particular to guard method and system behind a kind of service user engrossing group-calling uplink channel.
Background technology
Voice group call service (VGCS) is to realize that a plurality of people can talk (6 speakers comprise speaker's service-user and 5 dispatchers at the most), can the understand business of (hearer's quantity is unrestricted) of more people; Wherein, the dispatcher is the fixing or mobile subscriber who is identified as the dispatcher in network; Voice Broadcast Service (VBS) is to realize 1 people's speech (having only 1 speaker), a plurality of people's obedient (hearer's quantity is unrestricted) business.The voice communication mode of the point-to-multipoint that VGCS, VBS 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.
Among the existing VGCS, hearer's service-user becomes the speaker by application group call uplink channel, and synchronization can only have a service-user to use the speech of group call uplink channel; After the success of service user applicating group call uplink channel, mobile services switching centre (MSC) informing base station subsystem (BSS) broadcast upstream channel busy in group call cell; Under the situation that does not provide caller priority to seize, have only current speaker's service-user to discharge after the group call uplink channel, other service-user could be applied for the speech of group call uplink channel; Speaker's service-user becomes the hearer after discharging the group call uplink channel, MSC notice BSS broadcast upstream channel idle in group call cell.
The shortcoming of prior art is:
Because in the group-calling service, synchronization can only have a service-user to use the speech of group call uplink channel, this moment, other service-users can only be as the hearer, under the situation that does not provide the group call uplink channel priority to seize, after having only current speaker's service-user to discharge the group call uplink channel, other hearer's service-users could be applied for the speech of group call uplink channel; Like this, if some fault appears in current terminal of occupying the service-user of group call uplink channel or have service-user malice to occupy up channel, MSC just can not get discharging the notice of up channel, the up channel state of this group calling that write down among the MSC this moment is just always for busy, make other hearer's service-user all can't use the group call uplink channel, this situation can be considered as the group call uplink channel and hang;
Even under the situation that provides the group call uplink channel priority to seize, have only the priority of hearer's service-user of desire speech to be higher than the priority of current speaker's service-user of talking, just can seize the group call uplink channel that current speaker's service-user occupies, become the speaker; So just make that the group call uplink channel can not get effective protection behind the service user engrossing group-calling uplink channel.
Summary of the invention
The technical problem to be solved in the present invention provides guard method and the system behind a kind of service user engrossing group-calling uplink channel, behind service user engrossing group-calling uplink channel, can protect the group call uplink channel, solves the group call uplink channel and hangs problem.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
Guard method behind a kind of service user engrossing group-calling uplink channel comprises step: a: service-user obtains the group call uplink channel; B:MSC starts up channel protection timer; C: if up channel protection timer expiry, then MSC, then keeps up channel, and returns step b if the state of this service-user is correct to the state of this service-user of service-user transmit status query messages verification that takies up channel; Otherwise, discharge up channel.
Concrete, if service-user is the response inquiry to cause value in the feedback of STATUS ENQUIRY message, and call state judges then that for sending and receiving mode this business personnel's state of user is correct.
Wherein, behind the state of this service-user of service-user transmit status query messages verification that takies up channel,, then discharge up channel if in the duration that presets, do not receive the feedback of described STATUS ENQUIRY message.
Wherein, further comprise system broadcasts up channel idle message behind the step c.
Wherein, behind the described step b, if timer is not overtime, then also comprise: service-user discharges up channel, and stops the timer timing.
Wherein, also comprise before the step a: service-user sends the up channel request message; MSC judges whether up channel is idle, if then enter step a; Otherwise, finish.
Protection system behind a kind of service user engrossing group-calling uplink channel comprises BSS module, MSC module, and the MSC module further comprises: up channel is protection module regularly;
The BSS module be used for and the MSC module between wireless transmission and controlled function;
The MSC module is used to provide the function of Service Switching Function and other entity intercommunication, and obtains customer location registration and the required data of call request in gsm system;
After up channel timing protection module was used for service user engrossing group-calling uplink channel, MSC started up channel protection timer, if service-user discharges up channel, MSC stops up channel protection timer; If up channel protection timer expiry, MSC is to the state that takies up this service-user of service-user transmit status query messages verification, if service-user is the response inquiry to cause value in the feedback of STATUS ENQUIRY message, and call state is for sending and receiving mode, the up channel that then keeps this service-user restarts the up channel timer; Otherwise, discharge up channel.
Wherein, described system also comprises the VLR module, is used to store the relevant information of application up channel service-user, and carries out dynamic maintenance management.
Wherein, described BSS module comprises BSC module and BTS module, and the BSC module is used for being responsible for the interface management of BSS module, bears the RRM task; The BTS module is used for by wireless transmission between air interface and the service-user and controlled function.
Above technical scheme as can be seen, the present invention has following beneficial effect:
1, the present invention increases the regularly configuration of protected mode of up channel in MSC group calling attribute data, when up channel protection timer expiry, the terminal that adopts release up channel mode to solve when the service-user that occupies the group call uplink channel some fault occurs or has service-user malice to occupy up channel, make that up channel can not get discharging, cause other hearer's service-user all can't use the group call uplink channel;
2, also can adopt among the present invention service-user transmit status inquiry mode; in the status poll information that service-user returns; if professional state information is correct; then keep up channel; if professional state information mistake; then discharge up channel, thus feasible selectively to the protection of up channel, also protected the use interest of service-user simultaneously.
3, the present invention has solved the problem of hanging that the group call uplink channel may occur by increase the regularly configuration of protected mode of up channel in the group calling attribute data, makes the group call uplink channel obtain protection, develops widely thereby help group-calling service.
Description of drawings
Fig. 1 is the inventive method flow chart;
Fig. 2 starts and stops up channel protection timer flow chart for MSC;
Fig. 3 is for adopting the overtime delivery mode embodiment of up channel flow chart;
Fig. 4 is for adopting the overtime pattern verification embodiment of up channel flow chart;
Fig. 5 is a system diagram of the present invention.
Embodiment
Core of the present invention is: increase the regularly configuration of protected mode of up channel in the group calling attribute data of Anchor MSC, comprise that up channel regularly protects regularly protected mode of duration and up channel, wherein regularly to protect duration be up channel protection timer duration to up channel; Up channel regularly protected mode has two kinds: overtime release of up channel and the overtime verification of up channel; Behind service user engrossing group-calling uplink channel, MSC starts this timer, and when service-user discharged up channel, MSC stopped timer; If timer expiry, MSC according to up channel regularly the configuration in the protected mode carry out the up channel protection, if adopt up channel regularly during delivery mode, MSC forces to discharge the group call uplink channel; If when adopting the overtime pattern verification of up channel, MSC is to the state of this service-user terminal of service-user transmit status query messages verification that takies up channel, if the status message of user terminal is correct, keep the group call uplink channel, restart up channel protection timer; If it is overtime that MSC waits for verification message, the cause value or the call state that perhaps account in the STATUS ENQUIRY message that the up channel service-user returns are incorrect, then discharge up channel.
For ease of the present invention is further understood, now describe the present invention in conjunction with the accompanying drawings.
Consult the inventive method flow chart shown in Figure 1, comprise step:
Step 101: service-user sends the up channel request message;
Step 102: judge whether up channel is idle, if then enter step 103; Otherwise, finish;
Step 103: start up channel protection timer;
Step 104: judge whether up channel protection timer is overtime, if then enter step 106; Otherwise, enter step 105;
Step 105: service-user initiatively discharges up channel, stops up channel protection timer;
Step 106: to the service-user transmit status query messages that takies up channel;
Step 107: judge whether service-user returns the STATUS ENQUIRY message of presenting back correct, if then enter step 103 and restart timer; Otherwise, finish.
In the foregoing description, behind the CU group call uplink channel, work as timer expiry, MSC adopts the overtime pattern verification of up channel, promptly in this method the SOT state of termination that takies the up channel service-user is inquired about, however the present invention behind timer expiry, can the state of described service-user not inquired about yet, its method preceding step is identical with above-mentioned steps 101～step 105, difference is that step 105 back MSC directly discharges the up channel of this service-user, finishes.
Below in conjunction with specific embodiment, do describing in further detail.
See also MSC shown in Figure 2 and start and stop up channel protection timer flow chart, the user discharges up channel in timer regulation duration, specifically comprise:
Step 1: base station sub-system (BSS) is broadcast upstream channel idle (UPLINK_FREE) message in the sub-district, the state free time of the present up channel of service-user in the notifying cell;
Step 2: cellphone subscriber (MS) sends up channel to BSS and inserts (UPLINK_ACCESS) message on the group call uplink channel, request application up channel;
Step 3:BSS sends up channel request (UPLINK_REQUEST) message to MSC, and notice MSC has the user will apply for up channel;
Step 4:BSS sends the up channel request to mobile phone and allows (VGCS_UPLINK_GRANT), and expression allows the application up channel;
Step 5:BSS is broadcast upstream channel busy (UPLINK_BUSY) message in the sub-district, and the present up channel state of service-user is for busy in the notifying cell;
Step 6:MSC sends up channel for the BSS of other non-application up channels and takies order (UPLINK_SEIZED_COMMAND) message, and notice BSS up channel is busy condition now;
Step 7: after mobile phone receives that the request of application up channel allows, to the BSS transmission Asynchronous Balanced Mode (SABM) frame is set, layer three message (L3msg) that wherein comprise are speaker's sign (TALKER_INDICATION), comprise the terminal capability (Classmark) and the user ID of mobile phone in the message;
After step 8:BSS receives the SABM frame of terminal, can directly return (link setup and the approval of withdrawing chain) UA frame, comprise identical content to terminal;
Step 9:MSC admits (UPLINK_REQUEST_ACK) message for the BSS transmission up channel request of application up channel, and expression allows the application up channel;
Step 10:BSS sends the up channel request and confirms (UPLINK_REQUEST_CONFIRMATION) message to MSC, and expression group call uplink channel request is successful, comprises the L3msg of terminal to report in the message, comprises information such as Classmark and user ID;
After step 11～step 12:MSC obtains applying for up channel user's sign, obtain the additional information (Additional info) that this user contracts to visit location register (VLR), comprise speaker's information etc., send group calling additional messages (VGCS_ADD_INFO) then and give BSS; And startup up channel protection timer;
Step 13: the mobile phone that takies up channel is beginning to discharge the up channel process to network side transmission up channel release (UPLINK_RELEASE) message on the dedicated channel or on the up channel of group calling passage;
Step 14:BSS sends up channel release indication (UPLINK_RELEASE_INDICATION) message informing speaker to MSC and has discharged up channel;
Step 15～step 17:MSC sends up channel release command (UPLINK_RELEASE_COMMAND) message to BSS and discharges up channel, and notifies other service-users can apply for up channel.
See also and Figure 3 shows that the overtime delivery mode embodiment of employing up channel flow chart, specifically comprise:
Step 301:BSS broadcasts UPLINK_FREE message in the sub-district, the state free time of the present up channel of service-user in the notifying cell;
Step 302:MS sends UPLINK_ACCESS message to BSS on the group call uplink channel, request application up channel;
Step 303:BSS sends UPLINK_REQUEST message to MSC, and notice MSC has the user will apply for up channel;
Step 304:BSS sends the up channel request to mobile phone and allows message VGCS_UPLINK_GRANT, and expression allows the application up channel;
Step 305:BSS broadcasts UPLINK_BUSY message in the sub-district, the present up channel state of service-user is for busy in the notifying cell;
Step 306:MSC sends UPLINK_SEIZED_COMMAND message for the BSS in a plurality of base station sub-systems of other non-application up channels, and notice BSS up channel is busy condition now;
Step 307: mobile phone sends the SABM frame to BSS after receiving that the request of application up channel allows, and the L3msg that wherein comprises is TALKER_INDICATION, comprises the Classmark and the user ID of mobile phone in the message;
After step 308:BSS receives the SABM frame of terminal, can directly return the UA frame, comprise identical content to terminal;
Step 309:MSC sends UPLINK_REQUEST_ACK message for the BSS of application up channel, and expression allows the application up channel;
Step 310:BSS sends UPLINK_REQUEST_CONFIRMATION message to MSC, and expression group call uplink channel request is successful, comprises the L3msg of terminal to report in the message, comprises information such as Classmark and user ID;
After step 311～step 312:MSC obtains applying for up channel user's sign, obtain the Additional info that this user contracts, comprise speaker's information etc., send VGC_ADD_INFO message then to BSS to the visit location register; And startup up channel protection timer;
Step 313～step 314: behind up channel protection timer expiry, MSC sends UPLINK_RELEASE_COMMAND message to BSS and discharges up channel;
Step 315～step 316: the mobile phone that takies up channel is beginning to discharge the up channel process to network side transmission UPLINK_RELEASE message on the dedicated channel or on the up channel of group calling passage; And notify other service-users can apply for up channel.
Behind the CU group call uplink channel, work as timer expiry, when MSC adopts the overtime pattern verification of up channel, see also and Figure 4 shows that and adopt the overtime pattern verification embodiment of up channel flow chart, specifically comprise:
Step 401:BSS broadcasts UPLINK_FREE message in the sub-district, the state free time of the present up channel of service-user in the notifying cell;
Step 402:MS sends UPLINK_ACCESS message to BSS on the group call uplink channel, request application up channel;
Step 403:BSS sends UPLINK_REQUEST message to MSC, and notice MSC has the user will apply for up channel;
Step 404:BSS sends the up channel request to mobile phone and allows message VGCS_UPLINK_GRANT, and expression allows the application up channel;
Step 405:BSS broadcasts UPLINK_BUSY message in the sub-district, the present up channel state of service-user is for busy in the notifying cell;
Step 406:MSC sends UPLINK_SEIZED_COMMAND message for the BSS in a plurality of base station sub-systems of other non-application up channels, and notice BSS up channel is busy condition now;
Step 407: mobile phone sends the SABM frame to BSS after receiving that the request of application up channel allows, and the L3msg that wherein comprises is TALKER_INDICATION, comprises the Classmark and the user ID of mobile phone in the message;
After step 408:BSS receives the SABM frame of terminal, can directly return the UA frame, comprise identical content to terminal;
Step 409:MSC sends UPLINK_REQUEST_ACK message for the BSS of application up channel, and expression allows the application up channel;
Step 410:BSS sends UPLINK_REQUEST_CONFIRMATION message to MSC, and expression group call uplink channel request is successful, comprises the L3msg of terminal to report in the message, comprises information such as Classmark and user ID;
After step 411～step 412:MSC obtains applying for up channel user's sign, obtain the Additional info that this user contracts, comprise speaker's information etc., send VGCS_ADD_INFO message then to BSS to the visit location register; And startup up channel protection timer;
Step 413～step 414: behind up channel protection timer expiry, MSC sends to the professional cellphone subscriber who takies up channel and obtains state (GET_STATUS) message, inquire about the current up channel state of user that takies, return STATUS message if take the up channel user, the call state that may comprise mobile phone in the message, (up channel adheres to status attribute, down channel adheres to, speaker whether) etc., and the cause value in the message is response query State message (Response to GET STATUS), the call state of terminal is for sending and receiving mode (U2sr), illustrate that the current state that takies user terminal is correct, keep up channel, restart up channel protection timer; Message is overtime if MSC waits for STATUS, and the cause value or the call state that perhaps account in the STATUS message that the up channel service-user returns are incorrect, then discharge up channel.
Accordingly, the present invention also provides the protection system behind a kind of service user engrossing group-calling uplink channel, consults system shown in Figure 5 figure, and this system comprises:
BSS module 501, MSC module 502;
BSS module 501 be used for and the MSC module between wireless transmission and controlled function, BSS module 502 further comprises base station controller (BSC) module 5011 and base transceiver station (BST) module 5012, BSC module 5011 is control sections of BSS module 501, be responsible for the various interface management of BSS module 501, bear the RRM task, BTS module 5012 belongs to the wireless portion of BSS module 501, realizes that the GSM operating system is by wireless transmission between air interface and the service-user and controlled function;
MSC module 502 is in the center in the GSM network, by it provide Service Switching Function and and system in the function of other entity intercommunication, and in gsm system, obtain customer location registration and the required total data of call request, MSC module 502 further comprises regularly protection module 5021 and visiting customer location register VLR module 5022; Described VLR module 5022 also can be independent of MSC module 502 individualisms;
After up channel timing protection module 5021 was used for service user engrossing group-calling uplink channel, MSC started up channel protection timer, if service-user discharges up channel, MSC stops up channel protection timer; If up channel protection timer expiry, MSC handles according to the up channel protected mode that disposes in the group calling attribute, force to discharge up channel or carry out the transmit status query messages accounting for the up channel service-user, if the cause value that takies in the status message that the up channel user returns is the responsive state inquiry, and user's call state is for sending and receiving mode, the state that this service-user terminal then is described is correct, continue to keep up channel, restart up channel protection timer, if MSC wait state return messages are overtime, the cause value or the call state that perhaps take in the status message that the up channel service-user returns are incorrect, then discharge up channel;
VLR module 5022 is used to store the relevant information of application up channel service-user, and carries out dynamic maintenance management.
In sum, behind the service user engrossing group-calling uplink channel, MSC starts up channel protection timer among the present invention, if service-user discharges up channel, MSC stops up channel protection timer; If up channel protection timer expiry, MSC handles according to the up channel protected mode that disposes in the group calling attribute, forces to discharge up channel or uses GET_STATUS message to carry out the up channel verification to accounting for the up channel service-user.
More than guard method and system behind a kind of service user engrossing group-calling uplink channel provided by the present invention are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1, the guard method behind a kind of service user engrossing group-calling uplink channel is characterized in that, comprises step:
A: service-user obtains the group call uplink channel;
B: mobile services switching centre MSC starts up channel protection timer;
C: if up channel protection timer expiry, then MSC, then keeps up channel, and returns step b if the state of this service-user is correct to the state of this service-user of service-user transmit status query messages verification that takies up channel; Otherwise, discharge up channel.
2, the guard method behind the service user engrossing group-calling uplink channel according to claim 1; it is characterized in that, concrete, if service-user is the response inquiry to cause value in the feedback of STATUS ENQUIRY message; and call state judges then that for sending and receiving mode the state of this service-user is correct.
3, the guard method behind the service user engrossing group-calling uplink channel as claimed in claim 1 or 2; it is characterized in that; behind the state of this service-user of service-user transmit status query messages verification that takies up channel; if in the duration that presets, do not receive the feedback of described STATUS ENQUIRY message, then discharge up channel.
4, the guard method behind the service user engrossing group-calling uplink channel according to claim 1 is characterized in that, further comprises system broadcasts up channel idle message behind the step c.
5, the guard method behind the service user engrossing group-calling uplink channel according to claim 1 is characterized in that, behind the described step b, if timer is not overtime, then also comprises:
Service-user discharges up channel, and stops the timer timing.
6, the guard method behind the service user engrossing group-calling uplink channel according to claim 1 is characterized in that, also comprises before the step a:
Service-user sends the up channel request message; MSC judges whether up channel is idle, if then enter step a; Otherwise, finish.
7, the protection system behind a kind of service user engrossing group-calling uplink channel comprises BSS module, MSC module, it is characterized in that the MSC module further comprises: up channel is protection module regularly;
The BSS module be used for and the MSC module between wireless transmission and controlled function;
The MSC module is used to provide the function of Service Switching Function and other entity intercommunication, and obtains customer location registration and the required data of call request in gsm system;
After up channel timing protection module was used for service user engrossing group-calling uplink channel, MSC started up channel protection timer, if service-user discharges up channel, MSC stops up channel protection timer; If up channel protection timer expiry, MSC is to the state that takies up this service-user of service-user transmit status query messages verification, if service-user is the response inquiry to cause value in the feedback of STATUS ENQUIRY message, and call state is for sending and receiving mode, the up channel that then keeps this service-user restarts the up channel timer; Otherwise, discharge up channel.
8, as the protection system behind the service user engrossing group-calling uplink channel as described in the claim 7, it is characterized in that described system also comprises the VLR module, be used to store the relevant information of application up channel service-user, and carry out dynamic maintenance management.
9, as the protection system behind the service user engrossing group-calling uplink channel as described in claim 7 or 8, it is characterized in that described BSS module comprises BSC module and BTS module, the BSC module is used for being responsible for the interface management of BSS module, bears the RRM task; The BTS module is used for by wireless transmission between air interface and the service-user and controlled function.
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| CNB2006100987269A CN100438657C (en) | 2006-07-10 | 2006-07-10 | Protection method and system after service user engrossing group-calling uplink channel |
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| CNB2006100987269A CN100438657C (en) | 2006-07-10 | 2006-07-10 | Protection method and system after service user engrossing group-calling uplink channel |
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| CN100438657C true CN100438657C (en) | 2008-11-26 |
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| CN101001424B (en) * | 2006-12-28 | 2010-09-08 | 华为技术有限公司 | Method and system of service user application for special uplink |
| WO2012037714A1 (en) * | 2010-09-20 | 2012-03-29 | 中兴通讯股份有限公司 | Voice group-calling uplink protection method and system |
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| CN1126016A (en) * | 1993-05-21 | 1996-07-03 | 英国电讯公司 | Group call in a cellular radio system |
| CN1176040A (en) * | 1995-08-31 | 1998-03-11 | 蜂窝技术服务公司 | Forced call disruption in wireless telephone system |
| EP1246395A1 (en) * | 2001-03-26 | 2002-10-02 | Motorola, Inc. | Token passing arrangement for a conference call bridge arrangement |
| WO2003090489A1 (en) * | 2002-04-15 | 2003-10-30 | Motorola, Inc. | Participant lists and timers in a session of a dispatch call |
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2006
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|---|---|---|---|---|
| CN1126016A (en) * | 1993-05-21 | 1996-07-03 | 英国电讯公司 | Group call in a cellular radio system |
| CN1176040A (en) * | 1995-08-31 | 1998-03-11 | 蜂窝技术服务公司 | Forced call disruption in wireless telephone system |
| EP1246395A1 (en) * | 2001-03-26 | 2002-10-02 | Motorola, Inc. | Token passing arrangement for a conference call bridge arrangement |
| WO2003090489A1 (en) * | 2002-04-15 | 2003-10-30 | Motorola, Inc. | Participant lists and timers in a session of a dispatch call |
Non-Patent Citations (3)
| Title |
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| WCDMA技术与系统设计. Harri Holma, Antti Toskala 著， 付景兴 马敏 陈泽强 周华等译,49,125-126,机械工业出版社. 2004 数字移动通信. 郭梯云 杨家玮 李建东，424-425，人民邮电出版社. 2001 |
| WCDMA技术与系统设计. Harri Holma, Antti Toskala 著， 付景兴 马敏 陈泽强 周华等译,49,125-126,机械工业出版社. 2004 * |
| 数字移动通信. 郭梯云 杨家玮 李建东，424-425，人民邮电出版社. 2001 * |
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