CN108307325A - A kind of multiselect group method of calling and device based on TD-LTE broadband cluster systems - Google Patents
A kind of multiselect group method of calling and device based on TD-LTE broadband cluster systems Download PDFInfo
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- CN108307325A CN108307325A CN201610885193.2A CN201610885193A CN108307325A CN 108307325 A CN108307325 A CN 108307325A CN 201610885193 A CN201610885193 A CN 201610885193A CN 108307325 A CN108307325 A CN 108307325A
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- multiselect
- dispatching desk
- calling
- core net
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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
- H04W4/08—User group management
Abstract
The present invention provides a kind of multiselect group method of calling and device based on TD LTE broadband cluster systems, is related to mobile communication technology field.This method includes：Dispatching desk sends multiselect group setup requests to cluster core net, and the group number GDN of multiselect group call identification and every group is at least carried in the multiselect group setup requests；The cluster core net is that each group of initiation base station group context in the multiselect group establishes process, and notice base station establishes group for each group and exhales down going channel, and by right of speech notification procedure, right of speech status indication information is sent to each group；The cluster core net informs the call setup result that dispatching desk is each organized by multiple notices.Multiselect group method of calling provided by the invention is changed by less dispatching desk interface, is multiplexed the design that group in original standard exhales downlink to establish, and supports the multiselect group call function that narrowband group system is realized on broadband cluster system.
Description
Technical field
The present invention relates to mobile communication technology fields, and in particular to a kind of multiselect group based on TD-LTE broadband cluster systems
Method of calling and device.
Background technology
Narrowband TETRA group systems are the digital clustering communication system standards that European Telecommunications Standards Organization (ETSI) is formulated,
It is widely used in rail traffic, public safety, multiple application fields such as fire-fighting command at present.Its abundant command scheduling function is more
It is the important component in urban transportation informatization construction.
The calling of multiselect group is narrowband TETRA group systems one of critical function indispensable in field of track traffic.
The function allow dispatching desk select it is multigroup is carried out at the same time calling, be equivalent to dispatching desk as caller while playing multiple groups and exhale, often
It is all individual that one group, which is exhaled, but initiates the voice that multiple services dispatching desk will receive all groups, can be after selectivity or audio mixing
It answers.
As mobile communication system constantly develops to broadband direction, wide-band mobile communication system is sent out to the direction of full IP
Exhibition, while providing ip voice business, provides the multimedia services such as number, image, audio, video.At the same time, for face
To for the group system of sector application, the demand to wideband multimedia cluster service is also more and more significant, such as visual calling,
Multimedia data broadcast etc..Therefore, it is come into being based on TD-LTE broadband cluster systems.
B-TrunC broadband cluster systems are to be based on TD-LTE technologies, are opened to meet industry user's command scheduling demand
Hair, the private wireless communication system towards specific industry application provide a user commander with higher rate, the bandwidth of bigger and adjust
Function is spent, is a kind of multipurpose, dynamical wireless communication system.In recent years, broadband cluster system in a government office, public peace
Entirely, the fields such as emergency communication, electric power, civil aviaton, petrochemical industry and army have a wide range of applications market.
But in the current broadbands B-TrunC cluster standard, not yet formulates multiselect group and call relevant specification.Therefore right
In the system in the customer demand of field of track traffic, can not fully meet.
It can be seen that problem of the existing technology is as follows：
The first, the narrowband TETRA group systems with multiselect group call function are in data transmission capabilities and multimedia service
Tenability in terms of it is weaker；
The second, with higher rate, the bandwidth of bigger B-TrunC broadband cluster systems in not yet formulate multiselect group and exhale
It is relevant specification.
Based on this, it is badly in need of a kind of multiselect group call function that narrowband group system can be realized on broadband cluster system
Method.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of multiselect group caller based on TD-LTE broadband cluster systems
Method and device are changed by less dispatching desk interface, are multiplexed the design that group in original standard exhales downlink to establish, and are supported in broadband
The multiselect group call function of narrowband group system is realized in group system.
In a first aspect, providing a kind of multiselect group method of calling based on TD-LTE broadband cluster systems, it is applied to dispatching desk,
The method includes：
The dispatching desk sends multiselect group setup requests to cluster core net, and multiselect group call business is established in request,
The group number GDN of multiselect group call identification and every group is at least carried in the multiselect group setup requests.
Preferably, multiple media information SDP are also carried in the multiselect group setup requests, wherein the dispatching desk
Multiple media information SDP are carried according to the quantity of multiselect group, are that each group of distribution one is unique in each media information SDP
Media port.
Another preferred, the method further includes：
The dispatching desk sends multiselect group call release request to the cluster core net, and request discharges the multiselect group and exhales
It cries, is identified wherein at least carrying multiselect group calling release mark and online calling in the multiselect group call release request.
Second aspect provides a kind of multiselect group method of calling of the broadband cluster system based on TD-LTE, is applied to cluster
Core net, the method includes：
The cluster core net receives the multiselect group setup requests that dispatching desk is sent, and the multiselect group call setup is asked
The group number GDN of multiselect group call identification and every group is at least carried in asking；
The cluster core net is that each group of initiation base station group context in the multiselect group establishes process, and to more
Select each group of transmission right of speech status indication information in group；
The cluster core net informs the call setup result that dispatching desk is each organized by multiple notices.
Preferably, the step that the cluster core net passes through multiple call setup results for notifying to inform that dispatching desk DC is each organized
Suddenly it specifically includes：
When what a group is the cluster core net often establish and exhale downlink, all a multiselect group calling is sent to the dispatching desk
Result notice INFO message is established, the message at least carries multiselect group calling result notice mark, online calling identification, group
Sets of numbers GDN and that individually organizes establish result.Wherein, the group number GDN is carried by SIP head domain, the multiselect group
Result notice mark, the online calling identification and the foundation individually organized is called to extend in SIP head domain the result is that increasing
Part.
The third aspect provides a kind of dispatching desk, is applied to the broadband cluster system based on TD-LTE, the dispatching desk packet
It includes：
Sending module, for sending multiselect group setup requests to cluster core net, multiselect group calling industry is established in request
It is engaged in, the group number GDN of multiselect group call identification and every group is at least carried in the multiselect group setup requests.
Preferably, the sending module is specifically additionally operable to：
Multiple media information SDP are carried in the multiselect group setup requests according to the quantity of multiselect group, each
It is one unique media port of each group of distribution in media information SDP.
Another preferred, the sending module is additionally operable to：
Multiselect group call release request is sent to the cluster core net, request discharges the multiselect group calling, wherein institute
It states at least to carry multiselect group in multiselect group call release request and call and discharges mark and call identification online.
Fourth aspect provides a kind of cluster core net, is applied to the broadband cluster system based on TD-LTE, the cluster core
Heart net includes：
Receiving module, the multiselect group setup requests for receiving dispatching desk transmission, the multiselect group call setup are asked
The group number GDN of multiselect group call identification and every group is at least carried in asking；
Control module is initiated, for establishing process for each group of initiation base station group context in the multiselect group, and
Right of speech status indication information is sent to each group；
Notification module, for passing through multiple call setup results for notifying to inform that dispatching desk is each organized.
Preferably, the notification module is specifically used for, and when often establishing what a group and exhaling downlink, is all sent to the dispatching desk
One multiselect group call setup result notice INFO message, the message at least carry multiselect group calling result notice mark,
Online calling identification, group number GDN and that individually organizes establish result.
5th aspect, provides a kind of multiselect group calling system of the broadband cluster system based on TD-LTE, the multiselect group
Calling system includes described in any one of dispatching desk and fourth aspect description described in any one of third aspect description
Cluster core net.
The multiselect group method of calling and device of the broadband cluster system of TD-LTE provided by the invention, pass through less scheduling
Platform interface is changed, and the design that group in original standard exhales downlink to establish is multiplexed, and supports to realize narrowband cluster on broadband cluster system
The multiselect group call function of system meets such as in the customer demand of field of track traffic.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is that the present invention is based on the system structure diagrams of TD-LTE wideband digital group systems；
Fig. 2 is that the present invention is based on the single group of signalings for exhaling foundation that the dispatching desk of TD-LTE wideband digital group systems is initiated
Flow diagram；
Fig. 3 is a kind of multiselect group caller based on TD-LTE wideband digital group systems that one embodiment of the invention provides
Method flow diagram；
Fig. 4 is a kind of multiselect group call setup based on TD-LTE wideband digital group systems that one embodiment of the invention provides
Vertical signaling process schematic diagram；
Fig. 5 is that a kind of multiselect group calling based on TD-LTE wideband digital group systems that one embodiment of the invention provides is released
The signaling process schematic diagram put；
Fig. 6 provides a kind of applied to the dispatching desk based on TD-LTE wideband digital group systems for one embodiment of the invention
Structural schematic diagram；
Fig. 7 provides a kind of applied to the cluster core based on TD-LTE wideband digital group systems for one embodiment of the invention
The structural schematic diagram of heart net.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
As shown in Figure 1, based on the private network broadband cluster system of LTE technologies by the broadbands LTE colony terminal, LTE data terminals,
The broadbands the LTE broadbands trunked base station eNodbB, LTE cluster core net T-CN and dispatching desk DC compositions.The support of LTE data terminals is based on
The packet data transmission business of IP, does not support group service and function.LTE data terminals should be able to be connected to LTE by Uu interfaces
Broadband trunked base station realizes LTE packet domain master data business.The broadbands LTE colony terminal is in addition to supporting IP-based packet count
Except transmission services, broadband group service and function should be also supported.The broadbands LTE colony terminal can be connected to by Uu-T interfaces
The broadbands LTE trunked base station realizes LTE packet domains basic service and group service.Cluster is added in the trunked base station equipment of the broadbands LTE
Service processing function completes the relevant RRC signaling of group service, the mapping control of channel, radio bearer foundation and control, user
Face data forwards and the scheduling and transmission etc. of group system message and paging message.The broadbands LTE trunked base station eNodbB is supported
Fail soft function can support LTE data terminals and the access of the broadbands LTE colony terminal by Uu-T interfaces.Cluster core net one
As include mobility management apparatus MME, gateway device x-GW, policy charging rule function device PCRF and database server
HSS.Dispatching desk DC is the peculiar terminal in group system, and the operating personnel for dispatcher or special access right provide group service
Scheduling feature, management function.The main offer scheduling feature of dispatching desk, including individual calling, group are exhaled, intrusion/toll breakdown, dynamic reorganization
Deng.
As shown in Fig. 2, the group that dispatching desk is initiated exhales Establishing process to be described as follows：
Step 1：Dispatching desk sends SIP (INVITE) message to cluster core net, and group-calling service is established in request, carries business
Identify pttcall, type of call calltype, call priority attribute-bit PrioAttribute, End to End Encryption instruction
E2ee, single duplex instruction duplex；
Step 2：Cluster core net replys SIP (100Trying) message to caller dispatching desk, is notifying the request of caller
It is handled；
Step 3：Cluster core net sends group paging order to base station；
Step 4：Trunked base station is in broadcast group page message of eating dishes without rice or wine；
Step 5：Cluster core net initiates group's context and establishes procedure message, and notice base station is established cluster multi call business and held
It carries；
Step 6：Base station sends GroupCallConfig on TCCH channels, provides the access layer configuration ginseng of group TTCH
Number, wherein also including NAS message GROUP CALL SETUP INDICATION；
Step 7：Cluster core net sends SIP (200OK) message to caller dispatching desk, and group of notifications, which is exhaled, to be successfully established and authorize
Dispatching desk right of speech carries pttaccept and extends header field, the optional online calling identification OnlineCallID of carrying；
Step 8：Dispatching desk sends SIP (ACK) message to cluster core net, confirms to exhale for current group and is successfully established；
Step 9：Cluster core net sends right of speech status indication information to listening user by NAS message.
Based on above-mentioned introduction, one embodiment of the invention provides a kind of multiselect based on TD-LTE wideband digital group systems
Group method of calling.As shown in figure 3, the multiselect group method of calling based on TD-LTE wideband digital group systems of the present embodiment includes
Following steps.
301, dispatching desk sends multiselect group setup requests to cluster core net, in the multiselect group setup requests
At least carry the group number GDN of multiselect group call identification and every group.
As shown in figure 4, specific multiselect group call setup flow is as follows：
1) dispatching desk DC sends Invite message to cluster core net T-CN and plays the calling of multiselect group, critical extension field：It is more
Choosing group call identification, the GDN for organizing 1, the GDN for organizing 2, the GDN for organizing 3 (GDN is according to selection changeable).
2) cluster core net T-CN, which is received, replys 100Trying expressions after the request of dispatching desk and has been received by request.
If 3) configuration data of group carried in asking is locally not present, cluster core net T-CN if, takes to log-on data
Business device RDS initiation group data acquisitions, this is the flow and message of standard.
4) 200OK, critical extension field are replied to dispatching desk if cluster core net T-CN allows this business to carry out：
OnlineCallId。
5) dispatching desk replys ACK after receiving 200OK to TCF, and expression receives response message.
302, the cluster core net establishes process for each group of initiation base station group context in the multiselect group, and
The each group of transmission right of speech status indication information into multiselect group.
As shown in figure 4, multiselect group calling downlink group is exhaled, to establish detailed process as follows：
6) cluster core net T-CN is that each group in the calling of multiselect group establishes group and exhale down going channel, and to each group
Right of speech notification procedure is sent, two processes are all the flow and message of standard.
In the present embodiment, the process and interface of right of speech application and release are consistent with standard, without extension.Dispatching desk side
Apply and discharge, reInvite is used in standard, it, only can be true by the matching of SIP sessions there is no need to increase extension
Whether fixed be that the language power application that multiselect group calls discharges.Wireless terminal side is applied and release, can carry the CALL ID of TCF distribution
(uniquely mark calling), therefore extended without increase, you can determine whether it is that the language power application that multiselect group calls discharges.
If the dispatching desk application right of speech of the business of initiation, T-CN will discharge all groups of existing right of speech by force, and incite somebody to action
Right of speech licenses to dispatching desk.
If UE in some group applies for right of speech, upper line number is passed the dispatching desk for being forwarded to initiation business and should by T-CN if
Group where UE.Right of speech notifies
When changing, T-CN needs for right of speech notice to be sent to group all in the calling of multiselect group right of speech.
And the UDN of GDN and right of speech person are filled in strictly according to the facts.
For example, dispatching desk sets up the multiselect group calling of tri- groups of A, B, C, member's first application of group A to right of speech at present,
T-CN at this time：
It is A to be sent to GDN in the right of speech notice of group A, and right of speech UDN is first；
It is B to be sent to GDN in the right of speech notice of group B, and right of speech UDN is first；
It is C to be sent to GDN in the right of speech notice of group C, and right of speech UDN is first.
303, the cluster core net passes through multiple call setup results for notifying to inform that dispatching desk is each organized.
As shown in figure 4, multiselect group calling result notice flow detailed process is as follows：
7) when what a group cluster core net T-CN often establishes and exhale downlink, an INFO message all is sent to dispatching desk, is closed
Key extended field：OnlineCallId, group number, as a result.
8) dispatching desk often receives an INFO message, all replys a 200OK message to cluster core net T-CN, indicates
Receive the notice.
9) if group all in the calling of multiselect group all establishes failure, cluster core net T-CN can actively send BYE message
Release this time calls.Critical extension field：OnlineCallId.
10) for dispatching desk after receiving BYE message, cluster core net replys 200OK message to T-CN.
In above-mentioned multiselect group call setup flow, as long as there are one group call setup success, cluster core net T-CN is then
Think this multiselect group access success.In addition, media negotiation is by cluster core net T-CN decisions.
Fig. 5 shows that a kind of multiselect group based on TD-LTE wideband digital group systems that one embodiment of the invention provides is exhaled
It is the signaling process schematic diagram of release.As shown in figure 5, specific multiselect group calling release flow is as follows：
1) dispatching desk sends BYE message, request release multiselect group calling to cluster core net T-CN.Critical extension field：
OnlineCallId。
2) cluster core net T-CN receive request after to DC reply 200OK, expression received request.
3) group all in the calling of cluster core net T-CN releases multiselect group exhales down going channel, this is the flow of standard and disappears
Breath.
During above-mentioned realization, newly-increased message is mainly reflected in SIP expansions, and SIP head domain does not have special designing, with
Definition in standard is consistent.
Multiselect group setup requests：
Sip message type：INVITE
Direction：DC->T-CN
Function describes：Multiselect group call request
Whether extend：It is that header field extension increases Ptt-Extension：pttMultiGrpCall；calltype；gdn；
gdn；gdn….
Message body：SDP.
Multiselect group call setup responds：
Sip message type：200OK
Direction：T-CN->DC
Function describes：Multiselect call setup success response
Whether extend：It is that header field extension increases Ptt-Extension：pttMultiGrpCall；OnlineCallId；
Message body：SDP.
Multiselect group call setup result notice：
Sip message type：INFO
Direction：T-CN->DC
Function describes：Multiselect group call setup result notice
Whether extend：It is that header field extension increases Ptt-Extension：pttMultiGrpCallRes；
OnlineCallId；result
Message body：Nothing
Note：GDN is carried by SIP head domain.
Multiselect group call release request：
Sip message type：BYE
Direction：DC<->T-CN
Function describes：Multiselect group call release request
Whether extend：It is header field extension
Whether extend：It is that header field extension increases Ptt-Extension：pttMultiGrpCallRel；
OnlineCallId；cause
Message body：Nothing.
Spreading parameter：
A kind of multiselect group method of calling based on TD-LTE wideband digital group systems provided in an embodiment of the present invention, from exhaling
Foundation, right of speech application/release, calling release are cried, only there are one dialogue, cluster cores always with cluster core network side for dispatching desk
Heart network side has multiple sessions for each group；Dispatching desk, terminal right of speech application/release different disposal, by network side
It completes；It is changed by less dispatching desk interface, is multiplexed the design that group in original standard exhales downlink to establish, supported in broadband cluster
The multiselect group call function of narrowband group system is realized in system, (sound regards the data that the broadcasting of dispatching desk alternative is each organized
Frequently), audio mixing/mixed screen is carried out by dispatching desk to play, meet such as in the customer demand of field of track traffic in multiselect.
Fig. 6 shows that one embodiment of the invention provides a kind of applied to the tune based on TD-LTE wideband digital group systems
The structural schematic diagram for spending platform, as shown in fig. 6, the dispatching desk includes：
Sending module 61, for sending multiselect group setup requests to cluster core net, the calling of multiselect group is established in request
Business at least carries the group number GDN of multiselect group call identification and every group in the multiselect group setup requests.
Optionally, the multiselect group call identification and the group number GDN are increased in SIP head domain expansion.
Optionally, the sending module 61 is specifically additionally operable to：
Multiple media information SDP are carried in the multiselect group setup requests according to the quantity of multiselect group, each
It is one unique media port of each group of distribution in media information SDP.
Optionally, the sending module 61 is additionally operable to：
Multiselect group call release request is sent to the cluster core net, request discharges the multiselect group calling, wherein institute
It states at least to carry multiselect group in multiselect group call release request and call and discharges mark and call identification online.Wherein, described more
Choosing group calling release mark and the online calling identification are increased in SIP head domain expansion.
A kind of dispatching desk based on TD-LTE wideband digital group systems provided in an embodiment of the present invention, to cluster core net
Multiselect group setup requests are sent, multiselect group call business is established in request；It is changed by less dispatching desk interface, multiplexing is former
There is group in standard to exhale the design that downlink is established, supports to realize that the multiselect group of narrowband group system calls work(on broadband cluster system
Can, dispatching desk alternative plays the data (sound, video) each organized, and carrying out audio mixing/mixed screen by dispatching desk in multiselect broadcasts
It puts, meets such as in the customer demand of field of track traffic.
Fig. 7 shows that one embodiment of the invention provides a kind of applied to the collection based on TD-LTE wideband digital group systems
Group's core net, the cluster core net include：
Receiving module 71, the multiselect group setup requests for receiving dispatching desk transmission, the multiselect group call setup
The group number GDN of multiselect group call identification and every group is at least carried in request；
Control module 72 is initiated, for establishing process for each group of initiation base station group context in the multiselect group,
And send right of speech status indication information to each group；
Notification module 73, for passing through multiple call setup results for notifying to inform that dispatching desk is each organized.
Optionally, the initiation control module 72 is additionally operable to, after the multiselect group call setup, by each group of data
It is separately sent on the corresponding media port of the dispatching desk.
Optionally, the cluster core net further includes：
Data acquisition module is not deposited locally for the configuration data when the group carried in the multiselect group setup requests
When, to log-on data server RDS initiation group data acquisitions.
Optionally, the notification module 73 is specifically used for, and when often establishing what a group and exhaling downlink, is all sent out to the dispatching desk
A multiselect group call setup result notice INFO message, the message is sent at least to carry multiselect group calling result notice mark
Know, online calling identification, group number GDN and that individually organizes establish result.Wherein, the group number GDN passes through SIP head
Domain carries, multiselect group calling result notice mark, the online calling identify and the foundation individually organized the result is that
Increase in SIP head domain expansion.
Optionally, the notification module 73 is additionally operable to：
If there are one group call setup successes, then it is assumed that this multigroup access success；If owned in the calling of multiselect group
Group all establish failure, actively to the dispatching desk send BYE message, request release calls herein.
Optionally, the initiation control module 72 is additionally operable to：
If the dispatching desk application right of speech of the business of initiation, will discharge all groups of right of speech by force, and right of speech is awarded
It weighs to the dispatching desk；If the UE in some group applies for right of speech, upstream data is forwarded to the scheduling of initiation business
Platform and the group where the UE.If right of speech sends variation, right of speech notice is sent to all in the calling of multiselect group
Group, wherein including at least the user identification number of the group number GDN and right of speech person of corresponding group in right of speech notice
UDN。
Optionally, the receiving module 71 is additionally operable to, and receives the multiselect group call release request that the dispatching desk is sent；Institute
It states initiation control module to be additionally operable to, discharging group all in the multiselect group calling according to the multiselect group call release request exhales
Down going channel.Wherein, multiselect group calling release mark and online calling are at least carried in the multiselect group call release request
Identification.
A kind of cluster core net based on TD-LTE wideband digital group systems provided in an embodiment of the present invention, passes through reception
The multiselect group setup requests that dispatching desk is sent, from call setup, right of speech application/release, calling release, dispatching desk and collection
For group's core network side always only there are one dialogue, cluster core network side has multiple sessions for each group；Dispatching desk, terminal
The different disposal of right of speech application/release, is completed by cluster core network side；It is changed by less dispatching desk interface, multiplexing
Group exhales the design that downlink is established in original standard, supports the multiselect group calling that narrowband group system is realized on broadband cluster system
Function meets such as in the customer demand of field of track traffic.
A kind of multiselect group calling system based on TD-LTE wideband digital group systems provided in an embodiment of the present invention, it is described
Multiselect group calling system includes dispatching desk shown in fig. 6 and cluster core net shown in Fig. 7.The present embodiment is no longer to above-mentioned more
The specific implementation details of choosing group calling system are described in detail.
Multiselect group calling system provided in an embodiment of the present invention is changed by less dispatching desk interface, is multiplexed original mark
Group exhales the design that downlink is established in standard, supports the multiselect group call function that narrowband group system is realized on broadband cluster system,
Meet such as in the customer demand of field of track traffic.
It will be understood by those skilled in the art that can adaptively be changed to the module in the equipment in embodiment
And they are provided in the different one or more equipment of the embodiment.Can in embodiment module or unit or
Component is combined into a module or unit or component, and can be divided into multiple submodule or subelement or subgroup in addition
Part.In addition to such feature and/or at least some of process or unit are mutually exclusive places, any combinations may be used
To all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and such disclosed any side
All processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including want by adjoint right
Ask, make a summary and attached drawing) disclosed in each feature can be replaced by providing the alternative features of identical, equivalent or similar purpose.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.
The all parts embodiment of the present invention can be with hardware realization, or to run on one or more processors
Software module realize, or realized with combination thereof.It should be noted that above-described embodiment the present invention will be described and
It does not limit the invention, and those skilled in the art can set without departing from the scope of the appended claims
Count out alternative embodiment.In the claims, any reference mark between bracket should not be configured to claim
Limitation.Word "comprising" does not exclude the presence of element or step not listed in the claims.Word before element
"a" or "an" does not exclude the presence of multiple such elements.The present invention can by means of include several different elements hardware
And it is realized by means of properly programmed computer.In the unit claims listing several devices, in these devices
Several can be embodied by the same hardware branch.The use of word first, second, and third does not indicate that
Any sequence.These words can be construed to title.
Finally it should be noted that：One of ordinary skill in the art will appreciate that：The above various embodiments is only to illustrate this hair
Bright technical solution, rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, this field
Those of ordinary skill should understand that：Its still can with technical scheme described in the above embodiments is modified, or
Equivalent replacement is carried out to which part or all technical features；And these modifications or replacements, do not make corresponding technical solution
Essence be detached from the scope of the claims in the present invention.
Claims (11)
1. a kind of multiselect group method of calling of broadband cluster system based on TD-LTE, feature
It is, is applied to dispatching desk, the method includes：
The dispatching desk sends multiselect group setup requests to cluster core net, and multiselect group call business is established in request, described
The group number GDN of multiselect group call identification and every group is at least carried in multiselect group setup requests.
2. according to the method described in claim 1, it is characterized in that, also being carried in the multiselect group setup requests multiple
Media information SDP, wherein the dispatching desk carries multiple media information SDP according to the quantity of multiselect group, in each media information
It is one unique media port of each group of distribution in SDP.
3. method according to claim 1 or 2, which is characterized in that the method further includes：
The dispatching desk sends multiselect group call release request to the cluster core net, and request discharges the multiselect group calling,
Multiselect group calling release mark is at least carried in the wherein described multiselect group call release request and online calling identifies.
4. a kind of multiselect group method of calling of broadband cluster system based on TD-LTE, which is characterized in that be applied to cluster core
Net, the method includes：
The cluster core net receives the multiselect group setup requests that dispatching desk is sent, in the multiselect group setup requests
At least carry the group number GDN of multiselect group call identification and every group；
The cluster core net is that each group of initiation base station group context in the multiselect group establishes process, and to multiselect group
In each group of transmission right of speech status indication information；
The cluster core net informs the call setup result that dispatching desk is each organized by multiple notices.
5. according to the method described in claim 4, it is characterized in that, the cluster core net informs dispatching desk by multiple notices
The step of call setup result that DC is each organized, specifically includes：
When what a group is the cluster core net often establish and exhale downlink, all a multiselect group call setup is sent to the dispatching desk
Result notice INFO message, the message at least carry multiselect group calling result notice mark, online calling identification, group number
Code GDN and that individually organizes establish result.
6. a kind of dispatching desk, it is applied to the broadband cluster system based on TD-LTE, which is characterized in that the dispatching desk includes：
Sending module, for sending multiselect group setup requests to cluster core net, multiselect group call business, institute are established in request
State the group number GDN that multiselect group call identification and every group are at least carried in multiselect group setup requests.
7. dispatching desk according to claim 6, which is characterized in that the sending module is specifically additionally operable to：
Multiple media information SDP are carried in the multiselect group setup requests according to the quantity of multiselect group, in each media
It is one unique media port of each group of distribution in message SDP.
8. the dispatching desk described according to claim 6 or 7, which is characterized in that the sending module is additionally operable to：
Multiselect group call release request is sent to the cluster core net, request discharges the multiselect group calling, wherein described more
Multiselect group calling release mark is at least carried in choosing group call release request and online calling identifies.
9. a kind of cluster core net is applied to the broadband cluster system based on TD-LTE, which is characterized in that the cluster core net
Including：
Receiving module, the multiselect group setup requests for receiving dispatching desk transmission, in the multiselect group setup requests
At least carry the group number GDN of multiselect group call identification and every group；
Control module is initiated, for establishing process for each group of initiation base station group context in the multiselect group, and to every
One group sends right of speech status indication information；
Notification module, for passing through multiple call setup results for notifying to inform that dispatching desk is each organized.
10. cluster core net according to claim 9, which is characterized in that the notification module is specifically used for, and often establishes
When one group exhales downlink, all a multiselect group call setup result notice INFO message, the message are sent to the dispatching desk
At least carry multiselect group calling result notice mark, online calling identification, group number GDN and the foundation knot individually organized
Fruit.
11. a kind of multiselect group calling system of broadband cluster system based on TD-LTE, which is characterized in that the multiselect group calling
System includes the dispatching desk described in claim 6-8 and the cluster core net described in claim 9-10.
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