CN102413533B - Group calling lower base station controller interconnected method, device and base station controller - Google Patents
Group calling lower base station controller interconnected method, device and base station controller Download PDFInfo
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- CN102413533B CN102413533B CN201110441161.0A CN201110441161A CN102413533B CN 102413533 B CN102413533 B CN 102413533B CN 201110441161 A CN201110441161 A CN 201110441161A CN 102413533 B CN102413533 B CN 102413533B
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Abstract
The invention discloses the lower BSC interconnected methods of one kind group calling, device and BSC, this method to include：Target side BSC receives the beep-page message from trunking dispatch server PDS, wherein, the outside ip address for exhaling BSC has been carried in beep-page message；Target side BSC determines that itself exhales BSC to whether there is soft handover interconnecting relation with rising according to outside ip address；The soft handover between BSC is exhaled to interconnect if it is, target side BSC is established and risen.By with the present invention, solve in correlation technique, during group calling, rise and exhale BSC to be exhaled with non-in the case that BSC has like-identified, target side BSC can not correctly have been searched out and exhaled BSC, and then can not establish the problem of soft handover interconnects, and then target side BSC has accurately been found and exhaled BSC, soft handover interconnection is established, improves systematic function.
Description
Technical field
The present invention relates to the communications field, in particular to lower base station controller (the Base Station of one kind group calling
Controller, referred to as BSC) interconnected method, device and BSC.
Background technology
Open cluster architecture (the Global open Trunking of professional cluster based on CDMA2000
Architecture, referred to as GoTa), by trunking dispatch server (PTT Dispatching Server, referred to as PDS),
Base station (Base Station, referred to as BS), base station include BSC and base station transceiver (Base Station
Transceiver, referred to as BTS), the equipment such as terminal (Mobile Station, referred to as MS) composition.
The distribution of trunked call feature terminal is wider, and call setup erects the local resource under multiple BSC, therefore each is needed
Establishing the BSC of local resource needs to judge that oneself exhales BSC IP interconnecting relations with rising, if IP interconnections be present, then can
To establish soft handover relationship, terminal is when the cell under BSC is exhaled from is switched to the cell under the BSC, it is possible to achieve soft handover,
Otherwise direct-cut operation relation is established, terminal can only carry out direct-cut operation when switching across BSC.
In correlation technique, the soft handover method realized across BSC is that terminal or dispatching desk initiate collection in each foundation calling
Groupcall, call message are sent to trunking dispatch server, then send beep-page message from trunking dispatch server to base station, use
The mark (referred to as BS ID) for exhaling BSC has been carried in the call proceeding for establishing base station, beep-page message；Each BSC can will be with
The information that other BSC of interconnecting relation itself be present is stored in interconnection BSC lists, all to receive trunking dispatch server paging
Non- of message exhales BSC, can by carried in beep-page message exhale BSC mark searched exhale BSC whether oneself
Interconnect in BSC lists, to have judged to exhale whether BSC has interconnecting relation with oneself；If there is interconnecting relation then go establish with
The soft handover relationship for exhaling BSC is acted, otherwise establishes direct-cut operation relation.
It is above-mentioned to realize that the method across BSC soft handover has leak in following scene.This scene such as institute of accompanying drawing 1
Show, if in the presence of 3 BSC：BSC1, BSC2, BSC3, wherein, the mark BSID that BSC1 mark BSID is 6, BSC2 is 4,
BSC3 mark is identical with BSC1, and 6, and BSC1 and BSC2 does not have interconnecting relation, interconnecting relation be present in BSC2 and BSC3.Such as
Fruit terminal rises under BSC1 exhales trunked call, then BSC1 has been to exhale BSC, and call message can be sent to dispatch server by BSC1
PDS, dispatch server PDS can send beep-page message to BSC2, and the mark (BSID) for exhaling BSC (BSC1) has been carried in beep-page message
6.After BSC2 receives beep-page message, BSID=6 BSC can be searched in the interconnection BSC lists of itself storage.And BSC2 and BSC3
There are interconnection, while BSC3 BSID=6, then BSC2 will will find the BSC3 that BSID is equally 6, it is believed that BSC3 has been to exhale
BSC, the request for establishing soft handover relationship is sent to BSC3.But BSC3 does not have any information of this calling, can not complete
The flow of software exchange relation is established with BSC2, so causing calling on BSC2 be able to not can be successfully established.
The content of the invention
The invention provides under a kind of group of calling BSC interconnect method, apparatus and BSC, at least to solve in correlation technique,
During group calling, rise and exhale BSC to be exhaled with non-in the case that BSC has like-identified, target side BSC can not correctly have been searched out and exhaled
BSC, and then the problem of soft handover interconnects can not be established.
According to an aspect of the invention, there is provided the method that BSC is interconnected under a kind of group of calling, including：Target side BSC connects
The beep-page message from trunking dispatch server PDS is received, wherein, the outside ip address for exhaling BSC has been carried in beep-page message；Mesh
Mark side BSC determines that itself exhales BSC to whether there is soft handover interconnecting relation with rising according to outside ip address；If it is, target side
BSC, which is established and risen, exhales the soft handover between BSC to interconnect.
Preferably, target side BSC determines that itself exhales BSC to whether there is soft handover interconnecting relation with rising according to outside ip address
Including：Target side BSC searches BSC marks corresponding with IP address in the database of itself；Target side BSC judges what is found
BSC identify with carried in beep-page message to exhale BSC to identify whether corresponding；If it is, determine that target side BSC exhales BSC with rising
Soft handover interconnecting relation be present.
Preferably, the beep-page message from trunking dispatch server PDS is received in target side BSC, wherein, in beep-page message
Before having carried the outside ip address for exhaling BSC, in addition to：Exhale BSC to receive the trunked call of self terminal, and judge itself
Whether the condition of soft handover interconnection is possessed；If it is, exhale BSC outside ip address being obtained from database, and by outside
IP address packing adds call message；Call message is sent to PDS.
Preferably, sent by call message to PDS, in addition to：The outside ip address that PDS is preserved；PDS is to target
Side BSC initiates beep-page message, and the outside ip address for exhaling BSC has wherein been carried in beep-page message and has been risen and has exhaled BSC to identify.
Preferably, target side BSC judge find BSC mark with carried in beep-page message rise exhale BSC identify be
After no correspondence, in addition to：If the BSC marks found exhale BSC marks not corresponding with rising, it is determined that target side BSC is with rising
Exhale BSC that soft handover interconnecting relation is not present.
Preferably, it is determined that target side BSC with rise exhale BSC be not present soft handover interconnecting relation after, in addition to：Target side
BSC, which is established and risen, exhales the direct-cut operation between BSC to interconnect.
According to another aspect of the present invention, there is provided the device that BSC is interconnected under a kind of group of calling, including：First receives mould
Block, for receiving the beep-page message from trunking dispatch server PDS, wherein, the outside for exhaling BSC has been carried in beep-page message
IP address；Determining module, for determining that itself exhales BSC to whether there is soft handover interconnecting relation with rising according to outside ip address；Hold
Row module, for it is determined that itself with rise and exhale BSC soft handover interconnecting relation to be present in the case of, establish and rise and exhale between BSC
Soft handover interconnects.
Preferably, determining module includes：Searching unit, it is corresponding with IP address for being searched in the database of itself
BSC is identified；Judging unit, BSC is exhaled to identify whether pair with rising of being carried in beep-page message for the BSC marks that judge to find
Should；Determining unit, for BSC identify with rise and exhale BSC marks corresponding in the case of, determine target side BSC and exhale BSC to exist
Soft handover interconnecting relation.
Preferably, execution module, it is additionally operable to it is determined that target side BSC exhales BSC that soft handover interconnecting relation is not present with rising
In the case of, establish and rise and exhale the direct-cut operation between BSC to interconnect.
According to another aspect of the present invention, there is provided a kind of BSC, it is characterised in that including：Second receiving module, is used for
The trunked call for carrying out self terminal is received, and judges the condition for itself whether possessing soft handover interconnection；Acquisition module, at itself
Under conditions of possessing soft handover interconnection, BSC outside ip address is exhaled being obtained from database, and outside ip address packing is added
Enter call message；Sending module, for call message to be sent to PDS.
By the present invention, determine that itself is exhaled with rising according to the outside ip address carried in beep-page message using target side BSC
BSC whether there is soft handover interconnecting relation；If there is soft handover relationship, then target side BSC establish and rise exhale it is soft between BSC
Switch the method for interconnection, solve in correlation technique, when group calls, rise and exhale BSC to exhale BSC that there is like-identified with non-
Under, target side BSC can not correctly have been searched out and exhaled BSC, and then can not establish the problem of soft handover interconnects, and then make target side
BSC can accurately find and exhale BSC, establish soft handover interconnection, improve systematic function.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the scene schematic diagram that soft handover interconnection is established according to the BSC of correlation technique；
Fig. 2 is the flow chart of the method for the lower BSC interconnections of group calling according to embodiments of the present invention；
Fig. 3 is the flow chart of the method that BSC is interconnected under according to the preferred embodiment of the invention group of calling；
Fig. 4 is the structured flowchart one of the device of the lower BSC interconnections of group calling according to embodiments of the present invention；
Fig. 5 is the structured flowchart two of the device of the lower BSC interconnections of group calling according to embodiments of the present invention；And
Fig. 6 is that structured flowcharts of the BSC to call message process part is exhaled in lower of group calling according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Based in correlation technique, during group calling, rise and exhale BSC to be exhaled with non-in the case that BSC has like-identified, target side
BSC can not correctly have been searched out and exhaled BSC, and then can not establish the problem of soft handover interconnects, and the embodiments of the invention provide one
The method of the lower BSC interconnections of kind group calling.Fig. 2 is the flow chart of the method for the lower BSC interconnections of group calling according to embodiments of the present invention.
As shown in Fig. 2 this method includes：
Step S202, target side BSC receive the beep-page message from PDS, wherein, carried in beep-page message and exhaled BSC
Outside ip address；
Step S204, target side BSC determine that itself exhales BSC to be closed with the presence or absence of soft handover interconnection with rising according to outside ip address
System；
Step S206, the soft handover between BSC is exhaled to interconnect if it is, target side BSC is established and risen.
By the embodiment of the present invention, itself is determined according to the outside ip address carried in beep-page message using target side BSC
BSC is exhaled to whether there is soft handover interconnecting relation with rising；If there is soft handover relationship, then target side BSC establish with rise exhale BSC it
Between soft handover interconnection method, solve in correlation technique, group calling when, rise exhale BSC with non-exhale BSC that there is like-identified
In the case of, target side BSC can not correctly have been searched out and exhaled BSC, and then can not establish the problem of soft handover interconnects, and then be made
Target side BSC can accurately find and exhale BSC, establish soft handover interconnection, improve systematic function.
Following processing can also be included during target side BSC receives the beep-page message from PDS：Rising exhales BSC to connect
The trunked call for carrying out self terminal is received, and judges the condition for itself whether possessing soft handover interconnection；If it is, obtained from database
The outside ip address for exhaling BSC has been taken, and outside ip address is packed and adds call message；Call message is sent to PDS.In reality
During applying, exhale BSC to judge the condition for itself not possessing soft handover interconnection if risen, performed by original flow, it may be possible to hold
Row direct-cut operation, it is of course also possible to be that can not establish handoff procedure.Sent by call message to PDS, PDS may be used also
With the outside ip address of preservation；PDS to target side BSC initiate beep-page message, wherein carried in beep-page message exhale BSC outside
Portion's IP address and rise exhale BSC to identify.
Target side BSC determines that itself exhales BSC to include with the presence or absence of soft handover interconnecting relation with rising according to outside ip address：Mesh
Mark side BSC searches BSC marks corresponding with IP address in the database of itself；Target side BSC judges the BSC marks found
To exhale BSC to identify whether corresponding with rising of being carried in beep-page message；If it is, determine that target side BSC exhales BSC soft cut to be present with rising
Change interconnecting relation.
, can also be according to the outside ip address that get of application of different situations selectivity, for example, can in implementation process
So that the outside ip address got to be searched in target side BSC databases of itself.For example, the database can be its own
The BSC interconnecting relation tables of storage.The database can regularly update, to ensure the real-time of data.Its process called can be with
It is in the case where having found identical BSC marks, just calls outside ip address；Can also directly invoke outside ip address
Carry out the lookup of BSC marks；It can also be and directly call the IP address in database using outside ip address.By judging to search
To BSC mark with carried in beep-page message rise exhale BSC to identify whether corresponding method, come determine whether there is interconnection pass
System.If the data found are thought corresponding with outside ip address, interconnecting relation be present.If the BSC marks found are with rising
BSC marks are exhaled not correspond to, it is determined that target side BSC exhales BSC that soft handover interconnecting relation is not present with rising.
If it is determined that target side BSC with rise exhale BSC be not present soft handover interconnecting relation in the case of, target side BSC is built
Standing and rising exhales the direct-cut operation between BSC to interconnect.In the case where soft handover can not be established, nothing can also be made up by direct-cut operation
Method establishes the situation of defect, makes systematic difference more flexible.
Preferred embodiment
This preferred embodiment is based on solving causing another BSC because two BSC marks are identical present in prior art
On calling the problem of can not being successfully established, it is proposed that the method that BSC is interconnected under a kind of group of calling, by exhaling BSC to build at non-
Judge itself, whether with acting the method for exhaling BSC true interconnecting relation to be present, to examine in this preferred embodiment cluster when vertical calling
Method existing for user is surveyed as shown in figure 3, comprising the following steps：
Step S302, terminal initiate trunked call under BSC rising to exhale, and call message, which has been sent to, exhales BSC.
Step S304, the call message for exhaling BSC to receive terminal transmission is acted, judge itself whether possess soft handover interconnection
Condition, S306 is carried out if satisfying the requirements, otherwise, perform step S316.
Step S306, call database interface to obtain the outside ip address for exhaling BSC, and the IP address has been packed into and exhaled
Message, it is sent to trunking dispatch server.
Step S308, PDS have received the call message for exhaling BSC, preserve rising in call message and exhale BSC outside ip address,
And the outside ip address for exhaling BSC is carried in beep-page message and has acted the mark for exhaling BSC.
Step S310, non-is exhaled the beep-page message that BSC receives PDS, and the IP address that therein is exhaled BSC is put into data
Searched in storehouse, find corresponding BSC marks.The BSC marks for judging to find identify with the BSC in beep-page message
Whether correspond to, if it does correspond, then performing S312, otherwise perform S314.
Step S312, BSC is exhaled to establish soft handover relationship with rising.
Step S314, BSC is exhaled to establish direct-cut operation relation with rising.
Step S316, flow is exhaled to be handled according to original.
Using the method for the preferred embodiment of the present invention, compared with prior art, solve non-and exhale BSC to be exhaled with another with rising
BSC marks the problem of identical BSC is when soft handover interconnecting relation being present, and calling can not be successfully established.
Fig. 4 is the structured flowchart one of the device of the lower BSC interconnections of group calling according to embodiments of the present invention.As shown in figure 4, set
Put in target side BSC, it is characterised in that including：First receiving module 10, for receiving from trunking dispatch server PDS's
Beep-page message, wherein, the outside ip address for exhaling BSC has been carried in beep-page message；Determining module 20, for according to external IP
Location determines that itself exhales BSC to whether there is soft handover interconnecting relation with rising；Execution module 30, for it is determined that itself exhales BSC with rising
In the case of soft handover interconnecting relation being present, establish and rise and exhale the soft handover between BSC to interconnect；Execution module 30, is additionally operable to
Determine that target side BSC is exhaled in the case that soft handover interconnecting relation is not present in BSC with rising, establish and rise and exhale direct-cut operation between BSC
Interconnection.First receiving module 10, determining module 20, execution module 30 couple successively
Fig. 5 is the structured flowchart two of the device of the lower BSC interconnections of group calling according to embodiments of the present invention.As shown in figure 5, really
Cover half block 20 includes：Searching unit 202, for searching BSC marks corresponding with IP address in the database of itself；Judge single
Member 204, for the BSC marks that judge to find with carried in beep-page message to exhale BSC to identify whether corresponding；Determining unit
206, for BSC identify with rise and exhale BSC marks corresponding in the case of, determine that target side BSC is mutual with exhaling BSC soft handover to be present
Connection relation.
Below to being further described below applied to above-described embodiment in practice, although may slightly not in module name
Together, but same effect can be reached with above-described embodiment.The device is included with lower module：
Base station system application module, cluster of base stations system application module and the database subsystem of BS side base station controls.
Wherein, base station system application module can judge whether itself has when receiving the trunked call call message of terminal
The standby soft handoff condition carried out across BSC, satisfy the requirements and then call the access interface of database, obtain this BSC outside ip address,
And the outside ip address got is packed into call message and is sent to trunking dispatch server.Trunking dispatch server receives
After exhaling BSC outside ip address to rising in call message, saved, and exhale BSC's sending non-of paging
To be risen in beep-page message exhales BSC outside ip address to be sent to other BSC.Non- is exhaled BSC, for receiving colony dispatching service
After the beep-page message of device, its cluster of base stations system application module is exhaled at BSC outside ip address rising in beep-page message
Reason, is searched by it in database, if the mark (BSID) for exhaling BSC can have been found, then it is assumed that this non-is exhaled
BSC exhales BSC soft handover interconnecting relation to be present with rising, and establishes the link of soft handover relationship, does not otherwise establish soft handover relationship link.
It is described in greater detail below：
Terminal initiates trunked call, acts the call message for exhaling BSC to receive terminal, and base station system application module judges oneself
Whether soft handoff condition is possessed.If possessing soft handoff condition, subsequent step is performed, otherwise without subsequent treatment.
Database interface is called to obtain this BSC outside ip address.This BSC outside ip address is packed into call message
It is sent to trunking dispatch server.
Trunking dispatch server preserves the outside ip address for exhaling BSC that rises carried in call message, and in non-of paging
When exhaling BSC, it is wrapped into being sent to non-in into beep-page message and exhales BSC.
After non-is exhaled the beep-page message that BSC receives trunking dispatch server transmission, it is mutual to search its data library storage BSC
Join relation list, if by acting the BSC for exhaling BSC outside ip address to find marks (BSID) with being carried in beep-page message
The BSC marks come are corresponding, then think that this non-is exhaled BSC to exhale BSC soft handover interconnecting relation to be present with rising, otherwise it is assumed that this is non-
Rise and exhale BSC to exhale BSC that soft handover interconnecting relation is not present with rising.
Fig. 6 is the structured flowchart that BSC processing call messages part is exhaled in lower of group calling according to embodiments of the present invention.Such as figure
Shown in 6, such a BSC of the embodiment of the present invention, including：Second receiving module 40, the trunked call of self terminal is carried out for receiving, and
Judge itself whether possess the condition of soft handover interconnection；Acquisition module 50, for itself possess soft handover interconnection under conditions of,
BSC outside ip address is exhaled being obtained from database, and outside ip address is packed and adds call message；Sending module 60,
For call message to be sent to PDS.Second receiving module 40, acquisition module 50, sending module 60 couple successively.
As can be seen from the above description, the present invention realizes following technique effect：
The various embodiments described above of the present invention provide the side that whether there is true interconnecting relation between a kind of two BSC of differentiation
Method, device and BSC, BSC is exhaled to judge whether to have stored the outside for exhaling BSC in the interconnection BSC lists of database by non-
IP address, solve in correlation technique, during group calling, rise and exhale BSC to be exhaled with non-in the case that BSC has like-identified, target
Side BSC can not correctly have been searched out and exhaled BSC, and then the problem of soft handover interconnection can not be established, and then make target side BSC can be with
Accurately find and exhaled BSC, established soft handover interconnection, improve systematic function, also improve Consumer's Experience.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. the method that base station controller BSC interconnects under a kind of group of calling, it is characterised in that including：
Target side BSC receives the beep-page message from trunking dispatch server PDS, wherein, carried in the beep-page message
Exhale BSC outside ip address；
The target side BSC determines that itself exhales BSC to be closed with the presence or absence of soft handover interconnection with described according to the outside ip address
System；
If it is, the soft handover that the target side BSC is established and described is exhaled between BSC interconnects.
2. according to the method for claim 1, it is characterised in that the target side BSC determines according to the outside ip address
Itself exhales BSC to include with the presence or absence of soft handover interconnecting relation with described：
The target side BSC searches BSC marks corresponding with the outside ip address in the database of itself；
The BSC marks that the target side BSC judges to find exhale BSC to identify whether with what is carried in the beep-page message
It is corresponding；
If it is, determine that the target side BSC exhales BSC soft handover interconnecting relation to be present with described.
3. method according to claim 1 or 2, it is characterised in that received in target side BSC and come from trunking dispatch server
PDS beep-page message, wherein, before the outside ip address for exhaling BSC has been carried in the beep-page message, in addition to：
It is described to exhale BSC to receive the trunked call of self terminal, and judge the condition for itself whether possessing soft handover interconnection；
If it is, exhaling BSC outside ip address described in being obtained from database, and the outside ip address is packed and added
Call message；
The call message is sent to the PDS.
4. according to the method for claim 3, it is characterised in that sent by the call message to the PDS, also
Including：
The PDS preserves the outside ip address；
The PDS initiates the beep-page message to the target side BSC, is exhaled wherein carrying described rise in the beep-page message
BSC outside ip address and described exhale BSC to identify.
5. according to the method for claim 2, it is characterised in that in the BSC marks that the target side BSC judges to find
Know with carried in the beep-page message exhale BSC identify whether it is corresponding after, in addition to：
If find the BSC mark with described exhale BSC identify it is not corresponding, it is determined that the target side BSC with it is described
Rising exhales BSC that soft handover interconnecting relation is not present.
6. according to the method for claim 5, it is characterised in that it is determined that the target side BSC exhales BSC not deposit with described
After soft handover interconnecting relation, in addition to：
The direct-cut operation that the target side BSC is established and described is exhaled between BSC interconnects.
7. the device that base station controller BSC interconnects under a kind of group of calling, is arranged on target side BSC, it is characterised in that including：
First receiving module, for receiving the beep-page message from trunking dispatch server PDS, wherein, in the beep-page message
The outside ip address for exhaling BSC is carried；
Determining module, for determining that target side BSC exhales BSC mutual with the presence or absence of soft handover with described according to the outside ip address
Connection relation；
Execution module, in the case of it is determined that target side BSC exhales BSC soft handover interconnecting relation to be present with described, establishing
Interconnected with the described soft handover exhaled between BSC.
8. device according to claim 7, it is characterised in that the determining module includes：
Searching unit, for searching BSC marks corresponding with the outside ip address in target side BSC database；
Judging unit, the BSC marks for judging to find exhale BSC to identify whether with what is carried in the beep-page message
It is corresponding；
Determining unit, in the case of exhaling BSC marks corresponding with described in BSC marks, determine the target side BSC
BSC is exhaled soft handover interconnecting relation to be present with described.
9. the device according to claim 7 or 8, it is characterised in that
The execution module, it is additionally operable to it is determined that the target side BSC exhales BSC that soft handover interconnecting relation is not present with described
In the case of, foundation and the described direct-cut operation exhaled between BSC interconnect.
A kind of 10. base station controller BSC, it is characterised in that including：
Second receiving module, the trunked call of self terminal is carried out for receiving, and judges the bar for itself whether possessing soft handover interconnection
Part；
Acquisition module, under conditions of itself possessing soft handover interconnection, BSC external IP to be exhaled being obtained from database
Location, and the outside ip address is packed and adds call message；
Sending module, for the call message to be sent to trunking dispatch server PDS.
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| CN201110441161.0A CN102413533B (en) | 2011-12-26 | 2011-12-26 | Group calling lower base station controller interconnected method, device and base station controller |
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| CN201110441161.0A CN102413533B (en) | 2011-12-26 | 2011-12-26 | Group calling lower base station controller interconnected method, device and base station controller |
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| CN102413533B true CN102413533B (en) | 2017-11-28 |
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