CN106332282A - Method for realizing group call in hierarchical networking - Google Patents
Method for realizing group call in hierarchical networking Download PDFInfo
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- CN106332282A CN106332282A CN201510388133.5A CN201510388133A CN106332282A CN 106332282 A CN106332282 A CN 106332282A CN 201510388133 A CN201510388133 A CN 201510388133A CN 106332282 A CN106332282 A CN 106332282A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
Abstract
The invention discloses a method for realizing a group call in hierarchical networking. In the hierarchical networking, a cluster core network of each area is responsible for local cluster call scheduling business, and is also responsible for communicating with a superior core network system; and a superior cluster core network is responsible for the local cluster call scheduling business, and is also responsible for cluster call business control between a lower level core network and a lower level core network. A terminal initiates a group call establishment request, the core network to which the terminal belongs sends a group call establishment request to a master control server, and a group call uplink node sends a group call downlink establishment request to the current level or the lower level core network only when receiving group call uplink establishment success response returned by the master control server. By adoption of the scheme, the group call in the hierarchical networking can be realized.
Description
Technical field
The application relates to mobile communication technology field, particularly to trunking communicating technology, particularly relates to a kind of classification networking
Under the implementation method of group call.
Background technology
Trunked communication system is to develop to meet the demand of industry user's command scheduling, towards specific industry application
Private wireless communication system.In system, a large amount of wireless users share a small amount of wireless channel, based on command scheduling business
Application, is a kind of multipurpose, the high-effect wireless communication system utilizing frequency resource.Trunked communication system is in portion of government
The fields such as door, public safety, emergency communication, electric power, civil aviaton, petrochemical industry and army have a wide range of applications market.
Broadband multimedia cluster system based on TD-LTE is with forth generation mobile communication technology TD-LTE for core skill
Art, by the two-forty of TD-LTE, big bandwidth and the resource-sharing in Digital Trunking Technologies, fast call establishment, refers to
The new generation broadband digital multimedia cluster system integrating voice, data, video waving that the features such as scheduling carry out merging
System.
In the actual process of construction of public safety network, often requiring that can be according to relationship between superior and subordinate building network system.
Network, according to hierarchical relationship networking, on the one hand can ensure that different level server net is all entered by upper core net
Row calling exchange and control, the safety of whole system is high, and controllability is good；On the other hand, different regions can be gradually
Ground, the whole cluster network of hierarchical construction.Such as build the trunking communication network covering a certain province, province can be divided into
Level, city-level, three hierarchical network at county level.First build city-level network, gradually build up afterwards, improve County net,
The unified command dispatching patcher of the rear cities and counties' network internet intercommunication realizing the many areas of the whole province.Colony dispatching service not only can be
Carry out in this level, it is also possible to the group system across level He other levels carries out intercommunication.A certain area can build this in advance
The public security broadband radio multi-media cluster network of level, internal trunked call exchange control can independently be carried out.Comparing will
The Call-Control1 in many areas is concentrated and is deployed in a certain area, and reliability is higher.In sum, classification networking is built actual
Net has exigence.
Cluster multi call business is call business the most frequently used in trunked communication system command scheduling business.The most multiple set of terminal
Becoming a group, after group exhales foundation, all group memberships share a down channel.Up channel is obtained right of speech by one
Group membership take, other group memberships can receive voice and/or the video of right of speech side's terminal.Other group memberships simultaneously
Also right of speech can be applied for.When many area group system network interconnections, the terminal use as group membership can be distributed in not
With area, ownership different regions cluster system management.When group exhales initiation, whole group-calling service by one special, refer to
Fixed group system is served as the call business control centre point (i.e. organizing main control server) of this group and is carried out being uniformly coordinated group and exhale
Set up, group exhales middle right of speech to assign, group exhales the groups such as release to exhale control process.A unique cluster can be specified for each group
Core net serves as group main control server.
Existing broadband or arrowband group system the most do not define the network architecture of classification networking.China's arrowband number at present
Word cluster be mainly ETS association work out TErrestrial TRunked Radio (Terrestrial Trunked Radio,
TETRA) and China the Ministry of Public Security promote pro digital cluster ((Professional Digital Trunking, PDT) standard,
The most do not define the network architecture of classification networking.Chinese industrial and informationization portion 2013 issue " based on LTE skill
Broadband trunking communication (B-TrunC) the system general technical of art requires (first stage) " not yet define many area networkings
Network interconnection framework." public security broadband radio multi-media group system general technical rule are issued the Chinese Ministry of Public Security in 2014
Model " although defining roaming architecture, but the most do not define the network architecture of classification networking.Propose in this specification
The network system architecture of public security broadband radio multi-media group system, shown in its system architecture Fig. 1, this network system by
Terminal, base station, cluster core net and colony dispatching application platform composition, wherein, terminal includes but not limited to that multimode is eventually
End, single-mode terminal, data terminal and car-mounted terminal.Base station include police Digital Clustering base station (PDT Station) and
T-eNB, T-eNB are group system base station based on TD-LTE.Network element in cluster core net (TC) includes:
Interconnection gateway (IGW), clustered control functional module (TCF), cluster media function module (TMF), evolution
Home subscriber server (eHSS), the core network gateway (eXGW) of evolution, the mobile management entity of evolution
(eMME).Colony dispatching application platform includes: dispatching desk (DC), video and audio recording server (ReS), safety add
Close server (SeS), application server (ApS).
In Fig. 1, each interface implication is as follows:
Interface between PU terminal and base station, this interface is open interface；
Interface between PS base station and cluster core net, this interface is open interface；
Interface between PD cluster core net and colony dispatching application platform, this interface is open interface；
Interface between PI cluster core net and cluster core net, this interface is open interface；
Interface between SGi cluster core net and data service network, this interface should meet wanting of 3GPP TS 23401
Ask.
Interface between PG cluster core net and Interworking GateWay, this interface is the most undefined.
Interface between cluster core net logical ne as in figure 2 it is shown, wherein,
Interface between Th TCF and eHSS；
Interface between Mh eMME and eHSS；
Interface between Tm TCF and eMME；
Interface between Tt TCF and TMF；
Interface between Tx TMF and eXGW；
Interface between Mx eMME and eXGW.
Note: in colony dispatching application platform, contained Network Element Function and protocol stack of the interface definition refer to that " public security broadband wireless is many
Media group system general technical specification ".
Additionally, group membership's ownership manages in different regions core net, group main control server need to know group by certain mode
Which core net management member belongs to, in order to can be with paging group member when group exhales initiation.But this mode is being
Mostly system is realized by static configuration mode in systems.Once network structure change, it is necessary to amendment associated static
Configuration.
And, the cluster core net of rank groups different regions off the net is connected to the network of upper and lower hierarchical relationship.Different
Level core network service intercommunication all has to pass through upper core net and swaps, controls.The most how to carry out group to exhale and also do not have
There is feasible implementation method.It addition, when group main control server is exhaled to the cluster core net transmission group at different group membership places
After setting up request, the communication link of multiple target cluster core net will be set up with transmission user face media data.This leads
Cause group main control server becomes group and exhales the bottleneck of performance.
Summary of the invention
This application provides the implementation method of a kind of rank groups group call off the net, it is possible to achieve the group that rank groups is off the net
Group calling.
The implementation method of a kind of rank groups group call off the net that the embodiment of the present application provides, in described classification networking,
The cluster core net in each area had both been responsible for this area trunked call scheduling business, also was responsible for entering with upper core net system
Row intercommunication.Higher level's cluster core net had both been responsible for this area trunked call scheduling business, also be responsible for subordinate's core net and
Trunked call service between subordinate's core net controls；The method includes:
A, group exhale calling terminal transmission group to exhale foundation request to its affiliated n-th grade of cluster core net；
B, n-th grade of cluster core net receive after group exhales foundation request, it is judged that whether self is group main control server,
If so, step D is performed；Otherwise, step C is performed；
C, n-th grade of cluster core net transmission group exhale foundation request to (n+1)th grade of cluster core net；Make n=n+1, return
Step B；Wherein, (n+1)th grade of cluster core net is positioned at the upper level of n-th grade of cluster core net；
D, group main control server, according to the group membership's information previously generated and the information of signalling route, are exhaled to except group
(n-1)th grade of cluster core net transmission group that each group membership outside up intermediate node directly or indirectly belongs to is exhaled descending
Set up request；Receiving group exhales descending each cluster core net of request of setting up as transit node, and group is exhaled descending building
Vertical request sends the group membership directly managed to it, or sends to the next stage cluster directly or indirectly managing group membership
Core net；
E, receive group and exhale the descending group membership setting up request to exhale descending foundation to cluster core net return group of its direct ownership
Success response；Receiving group exhales the descending cluster core net of response that is successfully established as transit node, and group is exhaled descending foundation
The up transmission of success response is to organizing main control server；
F, group main control server send group call uplink to group call uplink intermediate node and are successfully established response, in the middle of group call uplink
Node exhales descending foundation to ask to this level or subordinate's cluster core net transmission group；Receive group and exhale each of descending foundation request
Group, as transit node, is exhaled the descending request of setting up to send the group membership directly managed to it by individual group call uplink intermediate node,
Or send to the next stage cluster core net directly or indirectly managing group membership；
G, receive group and exhale the descending group membership setting up request to exhale descending building to cluster core net return group of its direct ownership
Vertical success response；Receiving group exhales the descending cluster core net of response that is successfully established as transit node, and group is exhaled descending building
The vertical up transmission of success response is to group call uplink intermediate node；
H, group call uplink intermediate node are exhaled calling terminal transmission group to exhale to group and are successfully established response.
It is preferred that the method farther includes: exhale calling party's core net to the user face media of group main control server from group
In data upstream transmission link, each level server on the way is responsible for user face media data is forwarded directly to other groups
Exhale called member place cluster core net, it is not necessary to group main control server forwards.
Preferably, it is characterised in that at synchronization, group main control server and the most each level server only safeguard one
Exhale dialogue for individual group.
It is preferred that the method farther includes: user face media data forwards between level step by step；In group call uplink
Intermediate node is responsible for group is exhaled user face media data be sent to belong to the group membership of its management, subordinate's cluster core net management
Group membership and higher level's cluster core net；Group exhales descending intermediate node to be forwarded to user face media data belong to its pipe
The group membership of reason, the group membership of subordinate's cluster core net management.
As can be seen from the above technical solutions, rank groups terminal off the net initiation group is exhaled, and group call uplink intermediate node TCF is only
After having the group call uplink receiving group main control server return to be successfully established response, just to this level or subordinate's core net transmission group
Descending foundation is exhaled to ask, it is ensured that group main control server is unique control point that group-calling service controls；Exhale relevant with group
All level core net are receiving after group exhales and be successfully established response, carry out registering to group main control server according to group membership
The group membership's signalling route information generated during journey, exhales called member's initiation group to exhale foundation request to other groups.Avoid group
Group is exhaled foundation request again to issue each level and see core net node by main control server again, decreases group and exhales setup delay.
According to the preferred embodiment of the application, group master control TCF and other grade of TCF only safeguards that a group exhales dialogue.Real
Now simple, process easily；
According to the preferred embodiment of the application, user face media data forwards between level step by step.In the middle of group call uplink
Node TCF is responsible for user face media data forwards the group delivering to belong to the group membership of its management, subordinate TCF manages
Member uses and higher level TCF.Group is exhaled descending intermediate node TCF to be forwarded by user face media data and is delivered to belong to its management
Group membership, subordinate TCF management group membership.Aforesaid way avoids by group main control server individually to all levels
The performance bottleneck problem that core net individually issues and causes；Exhale calling party's core net to the user of group main control server from group
In the media data uplink link of face, each level server on the way is responsible for being forwarded directly to user face media data
Other group membership place core net, reduce the performance requirement forwarding group main control server user face media data.
Accompanying drawing explanation
Fig. 1 is public security broadband radio multi-media group system Organization Chart；
Fig. 2 is cluster core net logical ne interface diagram；
Fig. 3 is rank groups non-roaming cities and counties' two-stage group-network construction figure off the net；
Fig. 4 is network model's schematic diagram of 3 grades be made up of multiple cluster core net；
Off the net group of the rank groups that Fig. 5 provides for the embodiment of the present application exhales handling process schematic diagram.
Detailed description of the invention
The implementation method of a kind of rank groups group call off the net that the application provides, fundamental design idea includes: terminal
Initiation group exhales foundation request, and the core net of its ownership exhales foundation request to group main control server transmission group.Group exhales the foundation to be
No successful power to make decision is at group main control server (group master control TCF).Group call uplink intermediate node (exhales calling party from group
Core net to group main control server user face media data uplink link in, each TCF on the way, such as scheme
TCF1 and TCF2 in 4) only receive after the group call uplink that group main control server returns is successfully established response, just to
This level or subordinate's core net transmission group exhale descending foundation to ask.Group main control server can also have the group membership of directly management.
Relevant all level core net are exhaled to receive after group exhales and be successfully established response, according to organizing enrollment process before with group
The group membership's signalling route information generated exhales called member's initiation group to exhale foundation request to other groups.Group master control TCF and its
Directly only safeguard between next level TCF that a group exhales dialogue.User face data forwards between level step by step, middle
Node TCF is responsible for group is exhaled downlink user face media data be sent to belong to the group membership of its management, subordinate TCF pipe
The group membership of reason uses and higher level TCF.Exhale calling party's core net to the user face media data of group main control server from group
In uplink link, each level server on the way be responsible for being forwarded directly to user face media data other groups exhale by
It is member place core net, it is not necessary to group main control server forwards.
For making the know-why of technical scheme, feature and technique effect clearer, below in conjunction with concrete real
Execute example technical scheme is described in detail.
The core of classification networking is the network that the cluster core net of different regions is connected to upper and lower hierarchical relationship, mainly
It is presented as:
The cluster core net in each area had both been responsible for this area trunked call scheduling business, also was responsible for and upper core net system
System carries out intercommunication.
Higher level's cluster core net had both been responsible for this area trunked call scheduling business, also was responsible for and subordinate's core net and subordinate
Trunked call service between core net controls.
During classification networking, many areas cluster core net is by " public security broadband radio multi-media group system general technical is advised
Model " in PI3 interface inter-link intercommunication.PI3 interface is the interface between different TCF and between different TMF.Fig. 3
It show the network architecture of basic cities and counties' two-stage networking.Tu3Zhong C city comprises A, B Liang Ge county.Whole cluster leads to
Communication system in C city, A county and B county have 3 set TD-LTE broadband multimedia cluster systems respectively.Each network includes
Independent cluster core net and application platform.In Fig. 3, the network in each area eliminates base station and terminal part.Each
Network system manage independently oneself directly under user and the subscription data of group, the basic colony dispatching service across core net leads to
Cross PI3 interface between core net to complete.C city core net serves as father node in logic, and the core net in A county and B county is filled
Child node.The relation of father and son's node is arranged by static configuration mode in respective core net.I.e. child node core net
Configure unique father node core net and IP and the port numbers of service are provided.Father node core net configures all of child node core
The IP of net service and port numbers.A county, B county are the Trunked Radio Systems of sane level, can not directly collect each other
Group's scheduling business.The Trunked Radio System in C city connects A county and the core net in B county, not only respectively by PI3 interface
Scheduling business between the colony terminal that responsible city is directly under the jurisdiction of, is also responsible between A and B county or between C city and A, B county
Colony terminal scheduling business.
Group membership registers technical purpose to be reached to group main control server and includes:
Group main control server dynamically knows that group membership manages in the core net of which level；
Group main control server dynamically knows that call signaling is sent to the routing iinformation in core net path, group membership place；
From all cluster core net of the cluster core net of management group membership to group main control server process on the way in this process
In dynamically generate corresponding group membership's information and the information of signalling route.
Fig. 4 shows the network model of 3 grades be made up of multiple cluster core net (TCF).Colony terminal divides
Do not belong to TCF1～TCF4 management.TCF1～TCF4 and group master control TCF5 is rank groups wet end administration.TCF1、
TCF6 is the child node of TCF2, and TCF4 is the child node of TCF3, and TCF2, TCF3 are the child nodes of TCF5.
Group number is that the group membership of the group of GDN1 includes UE1-UE5, wherein, UE1, UE5 ownership TCF1 management, UE2
Ownership TCF2 management, UE3, UE4 ownership TCF4 management, UE5 ownership TCF6 management.TCF5 serves as the group of group
Main control server.
After UE1 is registered to TCF1, the group main control server of TCF1 superior sends SIP (MESSAGE) registration request
Message.The enrollment process of other-end UE2～UE5 omits and describes.Group membership registers and goes implementing of registration
Journey sees another part application of the applicant, and " during a kind of classification networking, group membership carries out, to group main control server, the side registered
Method ", here is omitted.
TCF1 is ownership TCF1 of group call initiator UE1.Group is exhaled foundation request to be sent to other by group main control server
Group membership.The group being dealt into group main control server exhales foundation request (group call uplink sets up request) to identify with thick line, mails to
The setup requests (group exhales descending foundation to ask) of other group memberships identifies with fine rule.
Fig. 5 shows that off the net group of the rank groups that the embodiment of the present application provides exhales handling process, comprises the steps:
Step 501: group is exhaled calling terminal UE1 to send out the group call uplink request of setting up and arrived TCF1.
Step 502:TCF1 judges whether self is group main control server, it is judged that result is for not, building group call uplink
Vertical request superior TCF2 sends.TCF2 returns SIP (100 Trying) response.
After step 503:TCF2 receives group call uplink foundation request, superior TCF5 sends INVITE request.TCF5
Return SIP (100Trying) response.
Step 504: after group master control TCF5 receives group call uplink foundation request, send out SIP (INVITE) group to TCF3 and exhale
Descending foundation is asked.TCF3 returns SIP (100Trying) response.
Step 505:TCF3 sends INVITE to TCF4, carries out group and exhales descending foundation to ask.TCF4 returns SIP (100
Trying) response.
Group is exhaled the descending request of setting up to mail to the terminal of its ownership management, owing to this process is network element by step 506:TCF4
Inside realizes defined, omits description herein.TCF4 returns SIP (200OK) response to TCF3 afterwards.TCF3
SIP (ACK) is sent to TCF4.
Step 507: do not have group membership due under TCF3, directly by SIP (200 OK) return group master control TCF5；
Step 508: group master control TCF5 receive group exhale descending be successfully established response after, exhale calling party's signalling route to save to group
Point TCF2 returns group call uplink and is successfully established responds SIP (200OK).TCF5 sends SIP (ACK) to TCF3.
Step 509:TCF2 receives after group call uplink is successfully established response, sends SIP (ACK) message to TCF5.With
Time to group membership's initiation group exhale foundation request.Due to this process, to be that network element internal realizes defined, omits description herein.
Step 510: owing to UE6 manages under TCF6, TCF2 generates according to group main control server enrollment process before
Call signaling routing iinformation, to TCF6 initiation group exhale descending set up request SIP (INVITE).Group is exhaled and is built by TCF6
The terminal of its ownership management is mail in vertical request, and TCF6 is after TCF2 returns SIP (200OK), and TCF2 sends out to TCF6
Send SIP (ACK) message.
Step 511:TCF2 i.e. returns group call uplink to TCF1 and is successfully established responds SIP (200OK).TCF1 is to TCF2
Send SIP (ACK).
Step 512:TCF1 is exhaled to UE1 transmission group and is successfully established response, and UE1 exhales to TCF1 return group and is successfully established
Confirm.
The embodiment of the present application provides off the net group of rank groups to exhale user face media data processing procedure as follows:
User face data forwards between level step by step, and group call uplink intermediate node TCF is responsible for exhaling group downlink user face
Media data is sent to belong to the group membership of its management, the group membership of subordinate TCF management uses and higher level TCF；From group
Exhale calling party's core net in the user face media data uplink link of group main control server, each level on the way clothes
Business device is responsible for that user face media data is forwarded directly to other groups and is exhaled called member place core net, it is not necessary to group master control clothes
Business device forwards.Group exhales descending intermediate node, and (path sending message from group main control server is downlink path, and this is descending
On path by way of each TCF be that group exhales descending intermediate node) user face media data is forwarded and delivers to belong to its management
Group membership, subordinate TCF management group membership.
The group that this application provides rank groups off the net exhales implementation method, can reach following technique effect:
Rank groups terminal off the net initiation group is exhaled, and group call uplink intermediate node TCF only receives what group main control server returned
After group call uplink is successfully established response, just descending foundation is exhaled to ask to this level or subordinate's core net transmission group, it is ensured that group
Main control server is unique control point that group-calling service controls；
Relevant all level core net are exhaled to receive after group exhales and be successfully established response, according to group membership to group master control with group
Server carries out group membership's signalling route information of generation during enrollment process, exhales called member's initiation group to exhale to other groups and builds
Vertical request.Avoid group main control server exhales foundation request again to issue each level and see core net node again by group, subtracts
Lack group and exhale setup delay；
Group master control TCF and other grade of TCF only safeguards that a group exhales dialogue.Realize simple, process easily；
User face media data forwards between level step by step.Group call uplink intermediate node TCF is responsible for user face media
Data forward and deliver to belong to the group membership of its management, the group membership of subordinate TCF management uses and higher level TCF.Group is exhaled down
User face media data is forwarded and delivers to belong to the group membership of its management by interline node TCF, subordinate TCF manages
Group membership.Aforesaid way avoids the property individually individually issued to all level core net and cause by group main control server
Can bottleneck problem；
From group exhale calling party's core net to group main control server user face media data uplink link, on the way
Each level server is responsible for being forwarded directly to user face media data other group membership place core net, reduces group
The performance requirement that main control server user face media data forwards.
The foregoing is only the preferred embodiment of the application, not in order to limit the protection domain of the application,
Within all spirit in technical scheme and principle, any modification, equivalent substitution and improvement etc. done,
Should be included within the scope of the application protection.
Claims (4)
1. an implementation method for the group call that rank groups is off the net, in described classification networking, the cluster core in each area
This area trunked call scheduling business had both been responsible for by heart net, also was responsible for carrying out intercommunication with upper core net system；Higher level's cluster
Core net had both been responsible for this area trunked call scheduling business, also was responsible between subordinate's core net and subordinate's core net
Trunked call service controls；It is characterized in that, the method includes:
A, group exhale calling terminal transmission group to exhale foundation request to its affiliated n-th grade of cluster core net；
B, n-th grade of cluster core net receive after group exhales foundation request, it is judged that whether self is group main control server,
If so, step D is performed；Otherwise, step C is performed；
C, n-th grade of cluster core net transmission group exhale foundation request to (n+1)th grade of cluster core net；Make n=n+1, return
Step B；Wherein, (n+1)th grade of cluster core net is positioned at the upper level of n-th grade of cluster core net；
D, group main control server, according to the group membership's information previously generated and the information of signalling route, are exhaled to except group
(n-1)th grade of cluster core net transmission group that each group membership outside up intermediate node directly or indirectly belongs to is exhaled descending
Set up request；Receiving group exhales descending each cluster core net of request of setting up as transit node, and group is exhaled descending building
Vertical request sends the group membership directly managed to it, or sends to the next stage cluster directly or indirectly managing group membership
Core net；
E, receive group and exhale the descending group membership setting up request to exhale descending foundation to cluster core net return group of its direct ownership
Success response；Receiving group exhales the descending cluster core net of response that is successfully established as transit node, and group is exhaled descending foundation
The up transmission of success response is to organizing main control server；
F, group main control server send group call uplink to group call uplink intermediate node and are successfully established response, in the middle of group call uplink
Node exhales descending foundation to ask to this level or subordinate's cluster core net transmission group；Receive group and exhale each of descending foundation request
Group, as transit node, is exhaled the descending request of setting up to send the group membership directly managed to it by individual group call uplink intermediate node,
Or send to the next stage cluster core net directly or indirectly managing group membership；
G, receive group and exhale the descending group membership setting up request to exhale descending building to cluster core net return group of its direct ownership
Vertical success response；Receiving group exhales the descending cluster core net of response that is successfully established as transit node, and group is exhaled descending building
The vertical up transmission of success response is to group call uplink intermediate node；
H, group call uplink intermediate node are exhaled calling terminal transmission group to exhale to group and are successfully established response.
Method the most according to claim 1, it is characterised in that the method farther includes: exhale calling party from group
Core net to group main control server user face media data uplink link in, each level server on the way be responsible for
User face media data is forwarded directly to other groups and exhales called member place cluster core net, it is not necessary to group main control server
Forward.
Method the most according to claim 2, it is characterised in that at synchronization, group main control server and on the way
Each level server only safeguards that a group exhales dialogue.
Method the most according to claim 1, it is characterised in that the method farther includes: user face media number
Forward step by step according between level；Group call uplink intermediate node is responsible for group is exhaled user face media data be sent to belong to it
The group membership of management, the group membership of subordinate's cluster core net management and higher level's cluster core net；Group exhales descending middle node
User face media data is forwarded to belong to the group membership of its management, the group membership of subordinate's cluster core net management by point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510388133.5A CN106332282B (en) | 2015-07-03 | 2015-07-03 | A kind of implementation method for the group call that rank groups are off the net |
Applications Claiming Priority (1)
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| CN113316096A (en) * | 2021-05-31 | 2021-08-27 | 武汉虹信科技发展有限责任公司 | Method and system for forwarding video to group in broadband cluster |
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| CN113645359A (en) * | 2021-08-12 | 2021-11-12 | 迈普通信技术股份有限公司 | Call backup and call method, device, terminal, server and storage medium |
| CN113645359B (en) * | 2021-08-12 | 2023-09-19 | 迈普通信技术股份有限公司 | Call backup and calling method, device, terminal, server and storage medium |
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