CN102300168B - A kind of method and system realizing trunking communication - Google Patents
A kind of method and system realizing trunking communication Download PDFInfo
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- CN102300168B CN102300168B CN201010215759.3A CN201010215759A CN102300168B CN 102300168 B CN102300168 B CN 102300168B CN 201010215759 A CN201010215759 A CN 201010215759A CN 102300168 B CN102300168 B CN 102300168B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a kind of method and system realizing trunking communication, when terminal initiates trunked call, base station, according to communication mode selection strategy, selects clean culture or multicast mode to communicate.Especially, when load of base station comparatively light (current loads result is lower than predetermined threshold value), select to adopt unicast communication manner; And when load of base station heavier (current loads result exceedes predetermined threshold value), select to adopt cast communication mode.The present invention, by clean culture and multicast two kinds of good combining of communication mode, makes both respective advantage be fully reflected in group system.By the inventive method, both ensured communication quality to the full extent, and saved system resource when system high load capacity again, improve power system capacity, thus improve service quality, ensure that Consumer's Experience.
Description
Technical field
The present invention relates to trunking communicating technology, espespecially a kind of method and system realizing trunking communication.
Background technology
Trunked communication system is developed to meet industry user and commanding demand, towards the private wireless communication system of specific industry application.In trunked communication system, a large amount of wireless user shares a small amount of wireless channel, is that main body is applied with command scheduling, is a kind of multipurpose, dynamical wireless communication system.Trunked communication system in a government office, public safety, emergency communication, electric power, civil aviaton, the field such as oil and army have a wide range of applications market.
Clean culture is point-to-point communication, and multicast is the communication of point-to-multipoint.Unicast communication is for service quality, and timely responder's mask has good Consumer's Experience.
At present, in trunking communication, adopting multicast mode, by adopting special shared channel, having saved system resource.But because all colony terminals share same channel, transfer of data can be interfered unavoidably, when network side load is large, this interference can become relatively more serious, thus have impact on speech quality, reduces service quality.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system realizing trunking communication.Can ensure, under the prerequisite economized on resources, to ensure speech quality, thus improve service quality.
For achieving the above object, technical scheme of the present invention is achieved in that
Realize a method for trunking communication, comprising:
Base station pre-sets communication mode selection strategy;
When terminal initiates trunked call, trunked base station, according to communication mode selection strategy, selects clean culture or multicast mode to communicate.
Described communication mode selection strategy is arranged according to base station case.
Described communication mode selection strategy is: when load of base station exceedes predetermined threshold value, and communication mode is multicast mode, and when load of base station is lower than predetermined threshold value, communication mode is mode of unicast.
Described according to communication mode selection strategy, select clean culture or multicast mode to carry out communication and comprise:
Described base station inquiry load condition, if when current loads result is lower than predetermined threshold value, then the terminal in described trunked call is selected to adopt unicast communication manner to communicate at this call business; If current loads result exceedes predetermined threshold value, then the terminal in described trunked call is selected to adopt the communication mode of multicast to communicate at this call business;
The periodically signalling of bouquet paging in the cell of described trunked base station, carries the communication mode mark for representing mode of unicast or multicast in beep-page message;
Described base station, according to the communication mode selected, is the laggard Serial Communication of call business Resources allocation of the terminal in trunked call.
The described communication mode selected is unicast communication manner; The communication mode that described basis is selected, for the call business Resources allocation of terminal comprises:
The described terminal receiving clustered paging connects with base station and core net respectively, and the terminal that base station is respectively respective sets up example; The up company-data received is transmitted to built each example by core net respectively, then sends to corresponding terminal called respectively, to communicate by each example.
The described communication mode selected is cast communication mode; The communication mode that described basis is selected, for the call business Resources allocation of terminal comprises:
Trunked base station is that colony terminal sets up cluster example, and the up company-data received is issued the cluster example of foundation by core net, then sends the data to colony terminal by cluster example, to communicate.
Described predetermined threshold value is load value, or load percent value, or the number of users that network side can hold.
Realize a system for trunking communication, at least comprise base station, and participate in multiple terminals of trunking communication, wherein,
Base station, is wherein provided with communication mode selection strategy; Initiating trunked call for receiving end side, according to communication mode selection strategy, selecting clean culture or multicast mode to communicate;
Terminal, the terminal called group comprising calling terminal and be made up of at least one terminal, for initiating trunked call, between calling terminal with terminal called group according to base station selected go out clean culture or multicast mode communicate.
Described communication mode selection strategy is: when load of base station exceedes predetermined threshold value, and communication mode is multicast mode communication, and when load of base station is lower than predetermined threshold value, communication mode is mode of unicast communication.
Described base station, specifically for:
Described base station receives end side and initiates trunked call, inquiry load condition, and when current loads result is lower than predetermined threshold value, then the terminal be defined as in described trunked call is selected to adopt unicast communication manner to communicate at this call business; Exceed predetermined threshold value in current loads result, the terminal be defined as in described trunked call is selected to adopt the communication mode of multicast to communicate at this call business;
The periodically signalling of bouquet paging in the cell of described trunked base station, carries the communication mode mark for representing mode of unicast or multicast in beep-page message;
Described base station, according to the communication mode selected, is the laggard Serial Communication of call business Resources allocation of the terminal in trunked call.
Described system also comprises core net;
The described communication mode selected is unicast communication manner;
The described terminal receiving clustered paging, specifically for connecting with its own base station and core net respectively,
Described base station, also sets up example for being respectively respective terminal;
Core net, after receiving up company-data, is transmitted to built each example respectively by the up company-data received, then sends to corresponding terminal called respectively by each example.
The described communication mode selected is cast communication mode;
Described trunked base station, also for setting up cluster example for colony terminal;
Described core net, for receiving up company-data, being transmitted to the cluster example of foundation, then sending the data to colony terminal by cluster example by the up company-data received.
As can be seen from the technical scheme that the invention described above provides, when terminal initiates trunked call, base station, according to communication mode selection strategy, selects clean culture or multicast mode to communicate.Especially, when load of base station comparatively light (current loads result is lower than predetermined threshold value), select to adopt unicast communication manner; And when load of base station heavier (current loads result exceedes predetermined threshold value), select to adopt cast communication mode.The present invention, by clean culture and multicast two kinds of good combining of communication mode, makes both respective advantage be fully reflected in group system.By the inventive method, both ensured communication quality to the full extent, and saved system resource when system high load capacity again, improve power system capacity, thus improve service quality, ensure that Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the flow chart that the present invention realizes the method for trunking communication;
Fig. 2 is the composition structural representation that the present invention realizes the system of trunking communication;
Fig. 3 is the flow chart that the present invention realizes the first embodiment of the method for trunking communication;
Fig. 4 is the flow chart that the present invention realizes the second embodiment of the method for trunking communication.
Embodiment
Fig. 1 is the flow chart that the present invention realizes the method for trunking communication, as shown in Figure 1, comprising:
Step 100: base station pre-sets communication mode selection strategy.
In this step, communication mode selection strategy, arrange according to base station case, when such as arranging according to load of base station situation, communication mode selection strategy is: when load of base station degree exceedes a certain predetermined threshold value, communication mode is multicast mode, and when the load of machinery systems is lower than a certain predetermined threshold value, communication mode is mode of unicast.
Wherein, predetermined threshold value can be a load value, or load percent value, or the network side number of users that can hold etc.
Step 101: when terminal initiates trunked call, trunked base station, according to communication mode selection strategy, selects clean culture or multicast mode to communicate.Here, the base station belonging to each colony terminal in cluster multi call is also referred to as trunked base station.
This step specific implementation roughly comprises:
First, when terminal initiates trunked call, can connect with base station and core net, core net when receiving initial UE context message, when finding that active calls is trunked call, can triggered clusters paging, and initiate clustered paging to trunked base station.Specific implementation belongs to prior art, and its implementation is not used in restriction scope.
Then, after trunked base station receives clustered paging, suppose the communication mode selection strategy that trunked base station is arranged according to load condition, so, trunked base station inquiry load condition, if when current loads result is lower than predetermined threshold value, then the terminal in trunked call is selected to adopt unicast communication manner to communicate at this call business; If current loads result exceedes predetermined threshold value, then the terminal in trunked call is selected to adopt the communication mode of multicast to communicate at this call business; Trunked base station sets up cluster example after receiving clustered paging immediately, and periodically signalling of bouquet paging in the cell, carry the communication mode mark for representing mode of unicast or multicast in beep-page message.
Finally, described base station is according to the communication mode selected, the laggard Serial Communication of call business Resources allocation for the terminal in trunked call: if communication mode mark is shown as multicast mode, after then core net receives up company-data, up company-data is transmitted to the cluster example (i.e. trunked base station set up immediately after receiving clustered paging cluster example) of all trunked base stations, then sends the data to colony terminal (participating in each terminal called of trunking communication) by cluster example; If communication mode establishment is shown as mode of unicast, the terminal receiving clustered paging connects with base station and core net respectively, the terminal that base station is respectively respective sets up example, after core net receives up company-data, up company-data is transmitted to the example that each base station is built for its administrative terminal called, then sends to each terminal called of its correspondence respectively by these examples.
From the inventive method, when load of base station comparatively light (current loads result is lower than predetermined threshold value), adopt unicast communication manner; And when load of base station heavier (current loads result exceedes predetermined threshold value), adopt cast communication mode.By the inventive method, both ensured communication quality to the full extent, and saved system resource when system high load capacity again, improve power system capacity, thus improve service quality, ensure that Consumer's Experience.
For the inventive method, a kind of system realizing trunking communication is also provided, as shown in Figure 2, at least comprises base station, and multiple terminal, wherein,
Base station, is wherein provided with communication mode selection strategy; For receiving the trunked call that terminal is initiated, according to communication mode selection strategy, clean culture or multicast mode is selected to communicate.Here, the base station belonging to each colony terminal in cluster group is also referred to as trunked base station.
Terminal, the terminal called group comprising calling terminal and be made up of at least one terminal, for initiating trunked call, between calling terminal with terminal called group according to base station selected go out clean culture or multicast mode communicate.
Below in conjunction with embodiment, the inventive method is described in detail.In following examples, suppose that communication mode selection strategy is: when the load of machinery systems exceedes predetermined threshold value, communication mode is multicast mode communication, and when load of base station degree is lower than predetermined threshold value, communication mode is mode of unicast communication.
Fig. 3 is the flow chart that the present invention realizes the first embodiment of the method for trunking communication, in the first embodiment, supposes that terminal 1 initiates trunked call, and terminal 2 is a terminal called in cluster group; Each base station sets load threshold value, when load of base station is lower than load threshold value, is called that load is comparatively light, when load of base station overloads threshold value, is called that load is heavier.Here, the base station belonging to each colony terminal in cluster group is also referred to as trunked base station.As shown in Figure 3, comprise the following steps:
Step 300: terminal 1 initiates trunked call, terminal 1 sends random access request message to base station.
Step 301: accidental access response is replied in base station, carries the ascending resource distributing to terminal 1 in accidental access response.
Step 302: terminal 1 is setting up request message for its ascending resource distributed sending wireless spread-spectrum technology (RRC).
Step 303: base station returns RRC to terminal 1 and sets up message.
Step 304: terminal 1 receives after RRC sets up message, sends RRC and has set up message, set up in this message and carried non-access layer information, include cluster number information in non-access layer information at RRC to base station.
Step 305: base station receives RRC and set up message, sends initial terminal (UE) context message to core net.
Step 306: core net receives initial UE context message, find that active calls is a trunked call, set up trunked call example, triggered clusters paging, and set up request message to the carrying of trunked base station transmitting cluster, beam back UE context to the base station of initiating initial UE context message simultaneously and set up request message.
Step 307: base station receives UE context and sets up request message, sends RRC reallocation message to terminal 1.
Step 308: terminal 1 receives RRC reallocation message, sends RRC reprovision response message.
Step 309: base station receives RRC reprovision response message, sends initial UE context to core net and sets up request response.
Step 310 ~ step 312: trunked base station receives clustered paging, inquires about self load condition, supposes that now load is heavier, then select to adopt multicast communication; Meanwhile, periodically signalling of bouquet paging in the cell, and in clustered paging message, carry the communication mode mark representing and adopt multicast.
Step 313 ~ step 314: request message is set up in the cluster carrying that trunked base station receives core net, sets up cluster example, and sets up response message to the carrying of core net signalling of bouquet.
Step 315 ~ step 317: core net receives up company-data, is transmitted to the cluster example that trunked base station is set up, then sends the data to terminal 2 by cluster example by up company-data.Cast communication mode is adopted to communicate between terminal 1 with terminal 2.
Wherein, step 307 ~ step 309, with step 310 ~ step 312, and the execution of step 313 ~ step 314 does not have strict sequencing.
Fig. 4 is the flow chart that the present invention realizes the second embodiment of the method for trunking communication, in the second embodiment, supposes that terminal 1 initiates trunked call, and terminal 2 is a terminal called in cluster group; Each base station sets load threshold value, when load of base station is lower than load threshold value, is called that load is comparatively light, when load of base station overloads threshold value, is called that load is heavier.Here, the base station belonging to each colony terminal in cluster group is also referred to as trunked base station.As shown in Figure 4, comprise the following steps:
Step 400: terminal initiates trunked call, terminal 1 sends random access request message to base station.
Step 401: accidental access response is replied in base station, carries the ascending resource distributing to terminal 1 in accidental access response.
Step 402: terminal 1 sends RRC and sets up request message on the ascending resource distributed.
Step 403: base station returns RRC to terminal 1 and sets up message.
Step 404: terminal 1 receives after RRC sets up message, sends RRC and has set up message, set up in message and carried non-access layer information, include cluster number information in non-access layer information at RRC to base station.
Step 405: base station receives RRC and set up message, sends initial UE context message to core net.
Step 406: core net receives initial UE context message, find that active calls is a trunked call, set up trunked call example, triggered clusters paging, launch cluster carrying to trunked base station and set up request message, meanwhile, send initial UE context to the base station of initiating initial UE context message and set up request message.
Step 407: base station receives initial UE context and sets up request message, sends RRC reallocation message to terminal 1.
Step 408: terminal 1 receives RRC reallocation message, returns RRC reprovision response message to base station.
Step 409: base station receives RRC reprovision response message, sends initial UE context to core net and sets up request response.
Step 410 ~ step 412: trunked base station receives clustered paging, inquire about self load condition, suppose that now load, for comparatively light, is selected to adopt mode of unicast communication, periodically signalling of bouquet paging in the cell simultaneously, carries the communication mode mark representing and adopt mode of unicast in beep-page message.
Step 413 ~ step 414: trunked base station receive core net cluster carrying set up request message, set up cluster example, and to core net return cluster carrying set up response message.
Step 415 ~ step 425: after terminal 2 receives the paging carrying and represent the communication mode mark adopting mode of unicast, sends random access request message to base station; Then,
Accidental access response is replied in base station, carries the ascending resource distributing to terminal 2 in accidental access response, and terminal 2 sends RRC and sets up request message on the ascending resource distributed; Base station returns RRC to terminal 2 and sets up message; Terminal 2 receives after RRC sets up message, and send RRC to base station and has set up message, base station receives RRC and set up message, to core net transmission initial UE context message; After core net receives initial UE context message, send initial UE context to base station and set up request message, for terminal 2 sets up example; Base station receives after initial UE context sets up request message, sends RRC reallocation message to terminal 2; Terminal 2 receives RRC reallocation message, returns RRC reprovision response message; Base station receives RRC reprovision response message, returns UE context set up request response to core net.
Step 426 ~ step 428: core net receives up company-data, is transmitted to the example that terminal 2 own base station is built for terminal 2, then sends to terminal called 2 by this example by up company-data.
Wherein, step 407 ~ step 409, there is no strict sequencing with the execution of step 410 ~ step 412 and step 413 ~ step 414.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. realize a method for trunking communication, it is characterized in that, comprising:
Trunked base station pre-sets communication mode selection strategy;
When terminal initiates trunked call, trunked base station, according to communication mode selection strategy, selects clean culture or multicast mode to communicate; Terminal communicates in a selected manner;
Described communication mode selection strategy is: when trunked base station load exceedes predetermined threshold value, and communication mode is multicast mode, and when trunked base station load is lower than predetermined threshold value, communication mode is mode of unicast;
Described according to communication mode selection strategy, select clean culture or multicast mode to carry out communication and comprise:
Described trunked base station inquiry load condition, if when current loads result is lower than predetermined threshold value, then the terminal in described trunked call is selected to adopt unicast communication manner to communicate at this call business; If current loads result exceedes predetermined threshold value, then the terminal in described trunked call is selected to adopt the communication mode of multicast to communicate at this call business;
The periodically signalling of bouquet paging in the cell of described trunked base station, carries the communication mode mark for representing mode of unicast or multicast in beep-page message;
Described trunked base station, according to the communication mode selected, is the laggard Serial Communication of call business Resources allocation of the terminal in trunked call.
2. method according to claim 1, is characterized in that, described in the communication mode selected be unicast communication manner; The communication mode that described basis is selected, for the call business Resources allocation of terminal comprises:
The terminal receiving clustered paging connects with trunked base station and core net respectively, and the terminal that trunked base station is respectively respective sets up example; The up company-data received is transmitted to built each example by core net respectively, then sends to corresponding terminal called respectively, to communicate by each example.
3. method according to claim 1, is characterized in that, described in the communication mode selected be cast communication mode; The communication mode that described basis is selected, for the call business Resources allocation of terminal comprises:
Trunked base station is that colony terminal sets up cluster example, and the up company-data received is issued the cluster example of foundation by core net, then sends the data to colony terminal by cluster example, to communicate.
4. the method according to any one of claims 1 to 3, is characterized in that, described predetermined threshold value is load value, or load percent value, or the number of users that network side can hold.
5. realize a system for trunking communication, it is characterized in that, at least comprise trunked base station, and participate in multiple terminals of trunking communication, wherein,
Trunked base station, is wherein provided with communication mode selection strategy; Initiating trunked call for receiving end side, according to communication mode selection strategy, selecting clean culture or multicast mode to communicate;
Terminal, the terminal called group comprising calling terminal and be made up of at least one terminal, for initiating trunked call, the clean culture selected according to trunked base station between calling terminal with terminal called group or multicast mode communicate;
Described communication mode selection strategy is: when trunked base station load exceedes predetermined threshold value, and communication mode is multicast mode, and when trunked base station load is lower than predetermined threshold value, communication mode is mode of unicast;
Described trunked base station, specifically for:
Described trunked base station receives end side and initiates trunked call, inquiry load condition, and when current loads result is lower than predetermined threshold value, then the terminal be defined as in described trunked call is selected to adopt unicast communication manner to communicate at this call business; Exceed predetermined threshold value in current loads result, the terminal be defined as in described trunked call is selected to adopt the communication mode of multicast to communicate at this call business;
The periodically signalling of bouquet paging in the cell of described trunked base station, carries the communication mode mark for representing mode of unicast or multicast in beep-page message;
Described trunked base station, according to the communication mode selected, is the laggard Serial Communication of call business Resources allocation of the terminal in trunked call.
6. system according to claim 5, is characterized in that, described system also comprises core net;
The described communication mode selected is unicast communication manner;
Receive the terminal of clustered paging, specifically for connecting with trunked base station belonging to it and core net respectively,
Described trunked base station, also sets up example for being respectively respective terminal;
Core net, after receiving up company-data, is transmitted to built each example respectively by the up company-data received, then sends to corresponding terminal called respectively by each example.
7. system according to claim 6, is characterized in that, described in the communication mode selected be cast communication mode;
Described trunked base station, also for setting up cluster example for colony terminal;
Described core net, for receiving up company-data, being transmitted to the cluster example of foundation, then sending the data to colony terminal by cluster example by the up company-data received.
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| CN201010215759.3A CN102300168B (en) | 2010-06-22 | 2010-06-22 | A kind of method and system realizing trunking communication |
| PCT/CN2011/071494 WO2011160469A1 (en) | 2010-06-22 | 2011-03-03 | Method and system for realizing cluster communication |
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| WO2011160469A1 (en) | 2011-12-29 |
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