CN104301871B - A kind of group-calling service range control method - Google Patents
A kind of group-calling service range control method Download PDFInfo
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- CN104301871B CN104301871B CN201310301615.3A CN201310301615A CN104301871B CN 104301871 B CN104301871 B CN 104301871B CN 201310301615 A CN201310301615 A CN 201310301615A CN 104301871 B CN104301871 B CN 104301871B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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Abstract
This application discloses a kind of group-calling service range control methods, including：A, when the service position of user terminal changes, core switching systems send the service position update notification for carrying core switching systems mark and user terminal state variation instruction to cluster server；B, for cluster server according to the service position update notification, group where Dynamic Maintenance user terminal, user terminal exhales the correspondence of group and core switching systems, and is updated to group-calling service range.Application scheme can effectively enhance the group-calling service scope control of cluster server, adapt to group-calling service range situation caused by user terminal variation, reduce network and the processing load of system.
Description
Technical field
This application involves mobile communication technology fields, more particularly to trunked communication system more particularly to a kind of group-calling service
Range control method.
Background technology
Trunked communication system is developed, the special nothing towards a variety of sector applications to meet industry command scheduling demand
Line communication system has a wide range of applications in public safety, communications and transportation, public utilities, petrochemical industry, industry and commerce and army.
Digital clustering communication system compares simulation trunked communication system, and with availability of frequency spectrum height, the anti-channel fading ability of signal is strong, pacifies
Many advantages, such as full reliability is high, business is abundant and network management control is flexibly effective, be it is current it is international, domestic application is most wide
General trunked communication system, for example, TErrestrial TRunked Radio（TETRA, Terrestrial Trunked Radio）With comprehensive number
Word enhanced network（IDEN, Integrated Digital Enhanced Networks）.In addition, China's also independent research
Based on CDMA（CDMA, Code Division Multiple Access）The open cluster architecture of technology（GoTa,
Global Open Trunking Architecture）Digital clustering communication system and be based on global system for mobile communications（GSM,
Global System for Mobile Communications）The GT800 digital clustering communication systems of technology.Currently, due to
The development of TD-LTE technologies, in the industry also in wideband digital trunked communication system of the research based on TD-LTE technologies.
Group-calling service is the most basic business that wireless cluster communication system provides.Group-calling service is established in group call region
One group of user participate in half-duplex voice or multimedia call, usual one group of user be made of 3 or more users.It is called through in group
During letter, organizing interior, there are one uplinks, organize when interior user talks and need to press PTT keys to apply for or seize uplink
Road；Belong to the downlink of the group there are one in each cell that group call region is included, the member that the group is belonged in cell is total
Enjoy the downlink.
In wideband digital trunked communication system, system is usually by terminal, base station, core switching systems and cluster server
Four parts are constituted.In networking, single system often cannot be satisfied for government offices, large-scale group etc. trunked communication system
Industry networking requirement.It needs to dispose the large construction cluster communication system that multiple triangular webs are constituted at this time, provide to the user a wide range of
Group service and realize unified command scheduling.Large construction cluster communication system frequently includes multiple base stations, and multiple cores exchange system
System and multiple cluster servers, between correspondence can be one-to-one, one-to-many or many-one, multi-to-multi.
When using multisystem networking, since Installed System Memory is in the core switching systems and cluster service of many-to-many relationship
Device, and based on the framework of standard TD-LTE technologies, core switching systems use transparent transmission mode, institute to teleservice
It can not know the core switching systems where terminal under this architecture with cluster server.
When realizing multi-user's cluster multi call business, cluster server is it needs to be determined that group exhales range and group of notifications is exhaled in range
Core switching systems are group-calling service allocation of downlink service resources.Under normal conditions, the processing mode used for：
Using whole advice methods, that is, cluster server is by broadcasting advice method or one by one advice method, notice system
Whole core switching systems in system carry out group-calling service downlink resource distribution, and core switching systems locally judge whether current
Cluster server is fed back within the scope of group-calling service and by judgement result.
Using IP address section identification method, that is, cluster server is by the IP address of terminal, in conjunction with the IP of systems organization
The correspondence of location section and core switching systems, judges the core switching systems where terminal.Cluster server is in group-calling service
Core switching systems where only group-calling service being notified to be related to terminal in foundation.
For trunked communication system, it is also most common business that it is its most basic business that group, which is exhaled, and business wants time delay
Ask stringent.
For the trunked communication system using whole advice methods, since cluster server is during group-calling service is established
It can not determine that group exhales range, need to notify whole core switching systems and locally be determined whether to exhale model in group by core switching systems
In enclosing.Since the user terminal in core switching systems changes in real time, then core switching systems needs are built in group-calling service
It calculates and whether is exhaled in range in group in real time during vertical, this can increase the processing complexity of network element device, and group-calling service is caused to build
Prolong increase immediately, influences experience of the user to group-calling service.Meanwhile after the completion of group-calling service has built up, if there is with
Family terminal variation causes group to exhale the variation of range, and as user terminal leaves, there are the core switching systems of group-calling service or users
Terminal is moved to the core switching systems there is no group-calling service, and cluster server can not obtain the information, lead to not for
User terminal provides effective business support and rational group is exhaled scope control.
For the group system using IP address section identification method, range can be exhaled real-time to avoid the group of core switching systems
Judge, but can not equally solve group-calling service establish after, user terminal variation caused by group-calling service range the case where.Together
When, the correspondence of IP address section and core switching systems due to needing to configure systems organization in cluster server works as IP
When planning changes, the synchronized update in core switching systems and cluster server is needed, the operation for increasing equipment management is multiple
Polygamy.
Invention content
This application provides a kind of group-calling service range control methods, can effectively enhance the group-calling service of cluster server
Scope control adapts to group-calling service range situation caused by user terminal variation, reduces network and the processing load of system.
A kind of group-calling service range control method provided by the embodiments of the present application, including：
A, when the service position of user terminal changes, core switching systems send to cluster server and carry core
Exchange system identifies and the service position update notification of user terminal state variation instruction；
B, cluster server is according to the service position update notification, group where Dynamic Maintenance user terminal, user terminal
The correspondence of group and core switching systems is exhaled, and group-calling service range is updated.
Preferably, the state change instruction includes：Access state indicates and leave state instruction.
Preferably, group where Dynamic Maintenance user terminal described in step B, user terminal exhales pair of group and core switching systems
Should be related to including：
Access state is indicated, cluster server reservation user terminal is corresponding with the core switching systems that it is accessed
Relationship；Leave state is indicated, cluster server deletes the corresponding pass of user terminal and the core switching systems that it is left
System.
Preferably, described in step B to group-calling service range be updated including：
Group where C1, cluster server calculate user terminal exhales the correspondence of group and core switching systems, for
The group for carrying out group-calling service exhales a group progress group-calling service range update, cluster server to judge to whether there is in core switching systems
Group-calling service, if so, step C2 is executed, it is no to then follow the steps C3；
If C2, the state change are designated as access state instruction or the state change is designated as leave state instruction
And the user terminal is not the case where organizing the last one interior user terminal in core switching systems, cluster server should maintain group
Exhale the scope of business constant；It is core switching systems to be designated as leave state instruction and the user terminal for the state change
In middle group the case where the last one user terminal, cluster server excludes the core switching systems from group-calling service range；
And terminate this flow；
If C3, the state change are designated as access state instruction, cluster server is established in the core switching systems
Group business.
As can be seen from the above technical solutions, logical by increasing location updating between core switching systems and cluster server
Know signaling control mechanism, coordinates position and the situation of change of core switching systems and user terminal in cluster server, cluster clothes
Device be engaged in by Dynamic Maintenance user terminal, the correspondence of user terminal place group and core switching systems, realization group exhales range
Control.Compared with traditional group exhales range control method, the method that the application proposes effectively enhances cluster server and exhales group
The flexible control of range can effectively reduce the processing complexity and Operating Complexity of core switching systems and cluster server,
Accelerate group call service and establishes speed.
Description of the drawings
Fig. 1 is the service position renewal process schematic diagram in the embodiment of the present application；
Fig. 2 is group-calling service scope control flow diagram provided by the embodiments of the present application.
Specific implementation mode
The core technology of technical scheme is conceived：By increasing position between core switching systems and cluster server
Update notification signaling control mechanism is set, position and the variation feelings of core switching systems and user terminal in cluster server are coordinated
Condition, cluster server are realized by the correspondence of group and core switching systems where Dynamic Maintenance user terminal, user terminal
Group exhales scope control.Compared with traditional group exhales range control method, the method that the application proposes effectively enhances cluster service
Device exhales group the flexible control of range, can effectively reduce processing complexity and the operation of core switching systems and cluster server
Complexity accelerates group call service and establishes speed.
To keep the technical principle, feature and technique effect of technical scheme clearer, below in conjunction with specific reality
Example is applied technical scheme is described in detail.
In TD-LTE wideband digitals trunked communication system described herein, the change in location of user terminal includes：User
The change in location of terminal access core exchange system, user terminal leave the change in location of core switching systems.The application is implemented
Example realizes core switching systems to collection by increasing " service position update " process between core switching systems and cluster server
The change in location and state notification procedures of group's server assist cluster server to carry out group and exhale scope control.
" service position update " process in the embodiment of the present application is as shown in Figure 1：
The case where for inserting user terminal to kernel exchange system, the user terminal can be that booting access core exchanges system
System, can also be since the mobility of user terminal leads to inserting user terminal to kernel exchange system.Specific processing is as follows：
Step 101a：Core switching systems to cluster server first by sending service position update notification, notice collection
Core switching systems mark and user terminal where group's server user's terminal are access state in core switching systems.
Step 102a：Cluster server receives service position update notification, according to the mark and use of core switching systems
The access state of family terminal indicates that cluster server should retain the core switching systems mark where user terminal, record simultaneously
The correspondence of user terminal and core switching systems calculates the correspondence of group and core switching systems where user terminal.
Cluster server should return to service position update response to core switching systems.
The case where leaving core switching systems for user terminal, the user terminal can be that core exchange system is left in shutdown
System, can also be since the mobility of user terminal causes user terminal to leave core switching systems.Specific processing is as follows：
Step 101b：Core switching systems to cluster server first by sending service position update notification, notice collection
Core switching systems mark and user terminal where group's server user's terminal are leave state in core switching systems.
Step 102b：Cluster server receives service position update notification, according to the mark and use of core switching systems
The leave state of family terminal indicates that cluster server should delete the correspondence of user terminal and core switching systems, count again
The correspondence of group and core switching systems where calculating user terminal.Cluster server should return to service bit to core switching systems
Set update response.
Exhale the control of range, the processing of cluster server as follows for group：
Process is established for group-calling service, group where cluster server searches group-calling service is corresponding with core switching systems
Relationship, you can obtain the range of group-calling service.
The case where having built up is exhaled for group, if user terminal is access state, cluster clothes in service position update
Group where business device should search active user's terminal exhales current group to exhale whether range includes current core exchange system, if packet
Contain, is not then for further processing；If do not included, group should be expanded and exhale range, established group in current core exchange system and exhale industry
Business.If user terminal is leave state in service position update, cluster server should search user terminal and be exchanged with core
It is organized where the correspondence and user terminal of system and determines that group exhales the control of range with the correspondence of core switching systems.Such as
Other users terminal is still had in fruit core switching systems, then exhales scope control without group.If in core switching systems
There is no other users terminal, then cluster server should reduce group and exhale range, delete the group-calling service of current core exchange system.
Based on above-mentioned introduction, scheme in order to further illustrate the present invention, Fig. 2 is of the present invention group and exhales scope control
Implementation method embodiment：
By embodiment as can be seen that in step 201, core switching systems are sending service position to cluster server
In update notification, need to carry core switching systems mark and user terminal state variation instruction, state change instruction includes：It connects
Enter state instruction and leave state instruction.
Cluster server is in step 202 to core switching systems response confirmation message.Access state is indicated, cluster
Server retain terminal and core switching systems correspondence, for leave state indicate, cluster server delete terminal with
The correspondence of core switching systems.Cluster server needs group pass corresponding with core switching systems where recalculating terminal
System.Group where cluster server computing terminal is given below exhales a specific implementation of the group with the correspondence of core switching systems
Mode：
Assuming that cluster server has safeguarded that group where following user terminal, user terminal exhales group and core switching systems
Correspondence：（Terminal 1, group exhale a group 1＆ groups to exhale group 2, core switching systems 1）,（Terminal 2, group exhale group 1, core switching systems 2）,
（Terminal 3, group exhale group 2, core switching systems 1）；Cluster server receives group and exhales the group of group 2 when exhaling, then traversal is safeguarded
Mapping table, calculating group exhales 2 counterpart terminals 1 of group and terminal 3, and only corresponds to core switching systems 1；When terminal 3 is handed over from core
When changing system 1 and being moved to core switching systems 2, then cluster server passes through service position update notification, updates described corresponding close
It is table, discovery group exhales group 2 to increase core switching systems 2 newly, and group exhales group 2 carrying out group to exhale, then by core switching systems 2
Being included in group exhales the group of group 2 to exhale range.
Cluster server according to the correspondence of group and core switching systems where terminal, judges core in step 203
It whether there is group-calling service in exchange system.
The case where for having existed group-calling service in core switching systems, in step 204a, for access state
User terminal, alternatively, for leave state and not being cluster the case where organizing the last one interior user terminal in core switching systems
Server should maintain group-calling service range constant.
The case where for having existed group-calling service in core switching systems, in step 204b, for leave state and
The case where being the last one user terminal in being organized in core switching systems, cluster server reduces group-calling service range.
The case where for group-calling service is not present in core switching systems, in step 204c, for the use of access state
The case where family terminal, cluster server expand group-calling service range.
By above processing, cluster server passes through the service position update notification of reception core switching systems, dynamic
Group where safeguarding user terminal and the correspondence of core switching systems and calculating user terminal is corresponding with core switching systems
Relationship efficiently solves in TD-LTE wideband digital trunked communication systems, and cluster server can not exhale range to have group
The problem of effect flexibly controls reduces the processing complexity and Operating Complexity of core switching systems and cluster server, accelerates system
System group-calling service establishes speed.
The foregoing is merely the preferred embodiments of the application, not to limit the protection domain of the application, it is all
Within the spirit and principle of technical scheme, any modification, equivalent substitution, improvement and etc. done should be included in this Shen
Within the scope of please protecting.
Claims (3)
1. a kind of group-calling service range control method, which is characterized in that including：
A, when the service position of user terminal changes, core switching systems are sent to cluster server carries core exchange
The service position update notification of system banner and user terminal state variation instruction；The state change indicates：Access shape
State indicates and leave state instruction；
B, for cluster server according to the service position update notification, group where Dynamic Maintenance user terminal, user terminal exhales group
With the correspondence of core switching systems, and group-calling service range is updated.
2. according to the method described in claim 1, it is characterized in that, Dynamic Maintenance user terminal described in step B, user terminal institute
The group and the correspondences of core switching systems is exhaled to include in group：
Access state is indicated, cluster server retains the corresponding pass of user terminal and the core switching systems that it is accessed
System；Leave state is indicated, cluster server deletes the correspondence of user terminal and its core switching systems left.
3. according to the method described in claim 2, it is characterized in that, described in step B to group-calling service range be updated including：
Group where C1, cluster server calculate user terminal exhales the correspondence of group and core switching systems, for carrying out
The group of group-calling service exhales a group progress group-calling service range update, cluster server to judge to exhale with the presence or absence of group in core switching systems
Business, if so, step C2 is executed, it is no to then follow the steps C3；
If C2, the state change are designated as access state instruction or the state change is designated as leave state instruction and institute
It is the case where organizing the last one interior user terminal in core switching systems to state user terminal not, and cluster server should maintain group to exhale industry
Range of being engaged in is constant；It is group in core switching systems to be designated as leave state instruction and the user terminal for the state change
The case where the last one interior user terminal, cluster server exclude the core switching systems from group-calling service range；And it ties
This flow of beam；
If C3, the state change are designated as access state instruction, cluster server is in the core switching systems foundation group industry
Business.
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| CN201310301615.3A CN104301871B (en) | 2013-07-15 | 2013-07-15 | A kind of group-calling service range control method |
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| CN104301871A CN104301871A (en) | 2015-01-21 |
| CN104301871B true CN104301871B (en) | 2018-08-24 |
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| CN105744480A (en) * | 2016-03-30 | 2016-07-06 | 山东闻远通信技术有限公司 | Dynamic adjusting method for group call area in broadband trunking communication (B-TrunC) system |
| CN108337325B (en) * | 2018-03-22 | 2021-04-16 | 上海火卫信息科技有限公司 | Wireless cluster intercom system and method based on P2P service and virtualization technology |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101472267A (en) * | 2007-12-29 | 2009-07-01 | 中国移动通信集团公司 | Method, equipment and system for updating mobile terminal position |
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| CN100502566C (en) * | 2005-08-01 | 2009-06-17 | 华为技术有限公司 | Method for realizing roam of group-calling |
| CN101223805B (en) * | 2005-08-18 | 2010-12-22 | 中兴通讯股份有限公司 | Roaming implementing method for digital cluster communication system |
| CN101013947A (en) * | 2006-12-31 | 2007-08-08 | 华为技术有限公司 | Method for adjusting calling area by network and method and apparatus for group calling |
| CN102137331B (en) * | 2010-01-22 | 2013-09-25 | 普天信息技术研究院有限公司 | Method for determining and regulating group calling region information |
| CN102932749B (en) * | 2011-08-10 | 2016-05-11 | 北京信威通信技术股份有限公司 | A kind of switch-spanning implementation method of group calling |
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| CN101472267A (en) * | 2007-12-29 | 2009-07-01 | 中国移动通信集团公司 | Method, equipment and system for updating mobile terminal position |
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