CN103079172A - Group service access method and system in time division-long term evolution (TD-LTE) digital trunked communication system - Google Patents
Group service access method and system in time division-long term evolution (TD-LTE) digital trunked communication system Download PDFInfo
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- CN103079172A CN103079172A CN2011103293636A CN201110329363A CN103079172A CN 103079172 A CN103079172 A CN 103079172A CN 2011103293636 A CN2011103293636 A CN 2011103293636A CN 201110329363 A CN201110329363 A CN 201110329363A CN 103079172 A CN103079172 A CN 103079172A
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Abstract
The invention provides a group service access method and system in a time division-long term evolution (TD-LTE) digital trunked communication system. The method comprises the following steps of: actively joining in a default group by a monitoring user terminal after starting up; accessing to a corresponding first group service according to a first group service activation command when the monitoring user terminal receives the first group service activation command from a base station, wherein the first group service activation command carries a group mark of the default group. According to the group service access method and system in the TD-LTE digital trunked communication system, the phenomenon that signaling storm is caused due to the fact that group joining processes are excessive is avoided.
Description
Technical field
The present invention relates to a kind of time-division-Long Term Evolution, and (Time Division-Long Time Evolution, be called for short: TD-LTE) group service cut-in method and the system in the digital clustering communication system belongs to the digital cluster communication technical field.
Background technology
The TD-LTE digital clustering communication system is a kind of digital clustering communication system that realizes as the basis take TD-LTE, and the group service that this system realizes belongs to the private network business.Relative therewith, what existing TD-LTE system realized is public network service, its air-interface standard mainly is for point-to-point unicast communication mechanism and multimedia broadcast-multicast service (Multimedia Broadcast Multicast Services, abbreviation: multi-casting communication mechanism MBMS).Yet, be applied to simply to realize that the private network of half-duplex operation mechanism of point-to-multipoint is professional if will have the TD-LTE system now, can there are the following problems:
When realizing group service, generally speaking, the group paging message that the monitoring users terminal is sent according to the base station first joins corresponding group; Then, when group service was set up, the activation command of sending according to the base station again accessed corresponding group service.This shows, existing monitoring users terminal also needed to carry out the process that group adds before realizing the access group service, this process needs to carry out repeatedly Signalling exchange in actual applications, when the number of monitoring users terminal is larger, just need to carry out many times group's adition process, correspondingly a large amount of Signalling exchanges will be produced, thereby the signaling storm on the network can be caused.
Summary of the invention
The invention provides group service cut-in method and system in a kind of TD-LTE digital clustering communication system, in order to the signaling storm of avoiding causing owing to too much Signalling exchange in a large amount of groups adition process.
One aspect of the present invention provides the group service cut-in method in a kind of TD-LTE digital clustering communication system, comprising:
Initiatively join in the default groups behind the monitoring users starting up of terminal;
When described monitoring users terminal receives the first group service activation command from the base station, access corresponding the first group service according to this first group service activation command; Wherein, carry the group identification of described default groups in described the first group service activation command.
The present invention provides the monitoring users terminal in a kind of TD-LTE digital clustering communication system on the other hand, comprising:
First adds module, is used for making this monitoring users terminal initiatively join default groups behind the monitoring users starting up of terminal;
The first access module is used for making described monitoring users terminal access corresponding the first group service according to this first group service activation command when described monitoring users terminal receives the first group service activation command from the base station; Wherein, carry the group identification of described default groups in described the first group service activation command.
Another aspect of the invention provides a kind of TD-LTE digital clustering communication system, comprises above-mentioned monitoring users terminal and base station, and this base station is used for periodically described the first group service activation command of broadcast transmission and described the second group service activation command.
By the present invention, owing to make the monitoring users terminal initiatively join in the default groups, therefore when accessing group service for default groups, the monitoring users terminal no longer needs repeatedly to carry out group's adition process, correspondingly reduce a large amount of Signalling exchanges that produce in group's adition process, thereby avoided the signaling storm that too much causes owing to group's adition process.
Description of drawings
Fig. 1 is the flow chart of the group service cut-in method embodiment in the TD-LTE digital clustering communication system of the present invention;
Fig. 2 is the structural representation of TD-LTE digital clustering communication system embodiment of the present invention.
Embodiment
Fig. 1 is the flow chart of the group service cut-in method embodiment in the TD-LTE digital clustering communication system of the present invention, as shown in the figure, comprises the steps:
Step 110 initiatively joins in the default groups behind the monitoring users starting up of terminal.
Wherein, described default groups refers to that the monitoring users terminal is according to the determined group of predefined information; Described active adds and refers to that this monitoring users terminal carries out group's adition process after need not waiting for the group service call request that comes from the base station as existing technology again, but just initiatively joins in the default groups after starting shooting.
Step 120 when described monitoring users terminal receives the first group service activation command from the base station, accesses corresponding the first group service according to this first group service activation command.
Wherein, described the first group service is the business by described the first group service activation command appointment; Described the first group service activation command is the order that sends to each monitoring users terminal in the described default groups, particularly, can carry group identification in described this first group service activation command, the monitoring users terminal confirms that according to this group identification this first group service activation command is the order that sends to default groups; In addition, this the first group service activation command can be specially semi-persistent scheduling (Semi-Persistent Scheduling, be called for short: SPS) activation command, wherein carry the time-frequency position indication information of SPS resource, the monitoring users terminal can be determined corresponding SPS resource according to this time-frequency positional information, access described the first group service, in order to realize SM service monitoring.
In addition, consider the reasons such as signal fadeout or signal delay, after first a group service activation command is sent in described base station, might not guarantee that the whole monitoring users terminals in the default groups can both in time receive this first group service activation command, for this reason, in the time will realizing the first group service, described base station is described the first group service activation command of broadcast transmission periodically, so that each the monitoring users terminal in the raising default groups receives this first group service activation command success rate, thereby the access success rate of corresponding raising the first group service.
By the described method of present embodiment, owing to make the monitoring users terminal initiatively join in the default groups, therefore when accessing group service for default groups, the monitoring users terminal no longer needs repeatedly to carry out group's adition process, correspondingly reduce a large amount of Signalling exchanges that produce in group's adition process, thereby avoided the signaling storm that too much causes owing to group's adition process.
In actual applications, the corresponding group of maximum group service that the monitoring users terminal may be able to be accessed is set as default groups, so that this monitoring users terminal just can access most group service in default groups; In addition, if when described monitoring users terminal also needs to access group service for non-default groups, then can also continue to carry out following step.
Step 130 when described monitoring users terminal receives group paging message from the base station, has the non-default groups that will add if specify in this group paging message, and then described monitoring users terminal breaks away from described default groups, joins in this non-default groups.
Wherein, described group paging message is to be used to indicate described monitoring users terminal to transform to message in another group, and according to this message, described monitoring users terminal breaks away from described default groups, joins in the described non-default groups.Wherein, the process that adds described non-default groups is consistent with group of the prior art adition process, repeats no more herein.
Step 131 when described monitoring users terminal receives the second group service activation command from the base station, accesses corresponding the second group service according to this second group service activation command.
Wherein, described the second group service is the business by described the second group service activation command appointment; Described the second group service activation command is the order that sends to each monitoring users terminal in the described non-default groups, particularly, can carry group identification in described this second group service activation command, the monitoring users terminal confirms that according to this group identification this second group service activation command is the order that sends to non-default groups; In addition, this the second group service activation command can be specially the SPS activation command, wherein carries the time-frequency position indication information of SPS resource, and the monitoring users terminal can be determined corresponding SPS resource according to this time-frequency positional information, access described the second group service, in order to realize SM service monitoring.
In addition, consider the reasons such as signal fadeout or signal delay, after second a group service activation command is sent in described base station, might not guarantee that the whole monitoring users terminals in the non-default groups can both in time receive this second group service activation command, for this reason, in the time will realizing the second group service, described base station is described the second group service activation command of broadcast transmission periodically, so that each the monitoring users terminal in the raising default groups receives this second group service activation command success rate, thereby the access success rate of corresponding raising the second group service.
Step 132, when described the second group service finished, described monitoring users terminal initiatively broke away from described non-default groups, and again joins in the described default groups.
Wherein, described active breaks away from and refers to that group paging message that described monitoring users terminal does not need to wait for that the indication of sending the base station adds default groups just breaks away from one's own initiative non-default groups and joins in the default groups, in order to prepare for again accessing described the first group service.
By the later step of above-mentioned steps 130, so that described monitoring users terminal is except first group service that can access default groups, can also be by switching to the second group service that accesses non-default groups in the non-default groups, thus the application scenarios of monitoring users terminal enriched.In addition since the monitoring users terminal to access the possibility of the second group service smaller, therefore, even when adding non-default groups, still need to carry out group's adition process, but can not cause the problem of signaling storm.
Fig. 2 is the structural representation of TD-LTE digital clustering communication system embodiment of the present invention, and in order to realize said method, as shown in the figure, this system comprises base station 10 and the monitoring users terminal 20 that connects with communication each other, and its operation principle is as follows:
After 20 starts of monitoring users terminal, add module 21 by first and make this monitoring users terminal 20 initiatively join in the default groups; Wherein, described default groups refers to that monitoring users terminal 20 is according to the determined group of predefined information; Described active adds and refers to that this monitoring users terminal 20 carries out group's adition process after need not waiting for the group service call request that comes from base station 10 as existing technology again, but just initiatively joins in the default groups after starting shooting.
After this, when described monitoring users terminal connect 20 receive from base station 10 the first group service activation command the time, make corresponding the first group service of described monitoring users terminal 20 accesses by the first access module 22 according to this first group service activation command; Wherein, carry the group identification of described default groups in described the first group service activation command, monitoring users terminal 20 confirms that according to this group identification this first group service activation command is the order that sends to default groups.Particularly, this first group service activation command can be the SPS activation command.
In addition, consider the reasons such as signal fadeout or signal delay, described base station 10 is described the first group service activation command of broadcast transmission periodically, so that each the monitoring users terminal in the raising default groups receives this first group service activation command success rate, thereby the access success rate of corresponding raising the first group service.
By the described system of present embodiment, owing to make monitoring users terminal 20 initiatively join in the default groups, therefore when accessing group service for default groups, monitoring users terminal 20 no longer needs repeatedly to carry out group's adition process, correspondingly reduce a large amount of Signalling exchanges that produce in group's adition process, thereby avoided the signaling storm that too much causes owing to group's adition process.
In actual applications, the corresponding group of maximum group service that monitoring users terminal 20 may be able to be accessed is set as default groups, so that this monitoring users terminal 20 just can access most group service in default groups; In addition, if when described monitoring users terminal 20 also needs to access group service for non-default groups, then can also further arrange such as lower module:
Adding module 21 first makes after described monitoring users terminal 20 initiatively joins in the described default groups, when described monitoring users terminal 20 receives group paging message from base station 10, if specify in this group paging message the non-default groups that will add arranged, then add module 23 by second and make described monitoring users terminal 20 break away from described default groups, join in this non-default groups.Wherein, described group paging message is to be used to indicate described monitoring users terminal to switch to message in another group.
After this, adding module 23 second makes after described monitoring users terminal 20 joins in the described non-default groups, when described monitoring users terminal 20 receives the second group service activation command from base station 10, can make corresponding the second group service of described monitoring users terminal 20 accesses according to this second group service activation command by the second access module 24; Wherein, carry the group identification of described non-default groups in described the second group service activation command, monitoring users terminal 20 confirms that according to this group identification this second group service activation command is the order that sends to non-default groups.Particularly, this second group service activation command can be specially the SPS activation command.
In addition, consider the reasons such as signal fadeout or signal delay, described base station 10 is described the second group service activation command of broadcast transmission periodically, so that each the monitoring users terminal 20 in the raising default groups receives this second group service activation command success rate, thereby the access success rate of corresponding raising the second group service.
Then, after the second access module 24 makes described the second group service of described monitoring users terminal 20 accesses, by the running status of professional monitoring modular 25 these the second group service of monitoring; When professional monitoring modular 25 monitors described the second group service end, also add module 21 by described first and make described monitoring users terminal 20 initiatively break away from described non-default groups, and again join in the described default groups.Wherein, described active breaks away from and refers to that group paging message that described monitoring users terminal 20 does not need to wait for that the indication of sending base station 10 adds default groups just breaks away from one's own initiative non-default groups and joins in the default groups, in order to prepare for again accessing described the first group service.
By setting up above-mentioned module, so that described monitoring users terminal 20 is except first group service that can access default groups, can also be by switching to the second group service that accesses non-default groups in the non-default groups, thus the application scenarios of monitoring users terminal enriched.Because the possibility of monitoring users terminal 20 accesses the second group service is smaller, therefore, even when adding non-default groups, still need to carry out group's adition process, but can not cause the problem of signaling storm in addition.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the group service cut-in method in the TD-LTE digital clustering communication system is characterized in that, comprising:
Initiatively join in the default groups behind the monitoring users starting up of terminal;
When described monitoring users terminal receives the first group service activation command from the base station, access corresponding the first group service according to this first group service activation command; Wherein, carry the group identification of described default groups in described the first group service activation command.
2. method according to claim 1, it is characterized in that, after initiatively joining in the described default groups, described monitoring users terminal also comprises: when described monitoring users terminal receives group paging message from the base station, if specify in this group paging message the non-default groups that will add arranged, then described monitoring users terminal breaks away from described default groups, joins in this non-default groups.
3. method according to claim 2, it is characterized in that, after joining in the described non-default groups, described monitoring users terminal also comprises: when described monitoring users terminal receives the second group service activation command from the base station, access corresponding the second group service according to this second group service activation command; Wherein, carry the group identification of described non-default groups in described the second group service activation command.
4. method according to claim 3, it is characterized in that, also comprise after described monitoring users terminal accesses described the second group service: when described the second group service finished, described monitoring users terminal initiatively broke away from described non-default groups, and again joins in the described default groups.
5. method according to claim 1 is characterized in that, also comprises: described base station is described the first group service activation command of broadcast transmission periodically.
6. method according to claim 3 is characterized in that, also comprises: described base station is described the second group service activation command of broadcast transmission periodically.
7. the monitoring users terminal in the TD-LTE digital clustering communication system is characterized in that, comprising:
First adds module, is used for making this monitoring users terminal initiatively join default groups behind the monitoring users starting up of terminal;
The first access module is used for making described monitoring users terminal access corresponding the first group service according to this first group service activation command when described monitoring users terminal receives the first group service activation command from the base station; Wherein, carry the group identification of described default groups in described the first group service activation command.
8. monitoring users terminal according to claim 7, it is characterized in that, also comprise: second adds module, being used for adding module first makes after described monitoring users terminal initiatively joins described default groups, when described monitoring users terminal receives group paging message from the base station, if specify in this group paging message the non-default groups that will add is arranged, then make described monitoring users terminal break away from described default groups, join in this non-default groups.
9. monitoring users terminal according to claim 8, it is characterized in that, also comprise: the second access module, being used for adding module second makes after described monitoring users terminal joins described non-default groups, when described monitoring users terminal receives the second group service activation command from the base station, make described monitoring users terminal access corresponding the second group service according to this second group service activation command; Wherein, carry the group identification of described non-default groups in described the second group service activation command.
10. monitoring users terminal according to claim 9 is characterized in that, also comprises: professional monitoring modular is used for making described monitoring users terminal monitor the running status of this second group service after accessing described the second group service in the second access module;
When professional monitoring module monitors finished to described the second group service, described first adds module also was used for making described monitoring users terminal initiatively break away from described non-default groups, and again joins in the described default groups.
11. TD-LTE digital clustering communication system that comprises each described monitoring users terminal in the claim 7～10, it is characterized in that, also comprise the base station, be used for periodically described the first group service activation command of broadcast transmission and described the second group service activation command.
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| CN1913665A (en) * | 2005-08-12 | 2007-02-14 | 中国铁通集团有限公司 | Trunking communication default number group calling method |
| CN1960301A (en) * | 2005-10-31 | 2007-05-09 | 华为技术有限公司 | Method for activating multicast service |
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Application publication date: 20130501 |