CN113473642B - Multi-service scene concurrent processing system applied to narrow-band trunking communication system - Google Patents
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Abstract
The embodiment of the application provides a multi-service scene concurrency processing system applied to a narrow-band trunking communication system, which comprises the following steps: the channel management module is used for determining the time occupied by the channel application after the service occurs; the service management module is used for introducing a service access control layer at the core network side, and realizing the function of service control by combining the management and the use of the channel of the base station by the channel management module, wherein the core network is used for the problem of a user and the preliminary calculation problem of the priority and giving the service access control right to the service access control layer of the corresponding base station for exercise; the access side downlink service parallel control module is used for processing new access service requests by an access control layer of the base station; the application can effectively realize concurrent processing of complex service scenes, avoid service collision of cross users, solve the problem of intense competition of channel resources and realize orderly and efficient concurrence of multiple users and multiple services.
Description
Technical Field
The application relates to the field of information communication, in particular to a multi-service scene concurrency processing system applied to a narrow-band trunking communication system.
Background
Narrowband trunking communication systems are often used in private network communication applications, and are subject to important responsibilities in particular applications. Because of the special and important roles of the narrowband trunking communication system, various characteristic functions are derived in the technical evolution development process, so that the narrowband trunking communication system not only has common services such as point-to-point service and point-to-group service, but also has special services such as scheduling service, priority service, call joining, three-party call and secret service, and the supported services are various and rich. The abundant service types become killers of the narrowband trunking communication system, and meanwhile, heavy service burden is brought to the system, and great test is brought to the functional completeness and reliability of core switching control and channel control. The concurrent processing of multi-service scenarios in a narrowband trunking communication system greatly increases system complexity and presents a great challenge to system reliability.
The inventor finds that the cluster communication system has the characteristics of small number of single base station channels, wide coverage geographic range and the like, the types of services in the system are complex, various scheduling services are more, and users have different types and different priorities. The multiple kinds of services initiated by multiple kinds of users simultaneously provide great challenges for realizing the call data service of the switching system. To solve this problem, the following technical problems exist:
(1) The communication service can be initiated by various users such as external network users, dispatch users, local users, roaming users and the like;
(2) Multiple users can initiate multiple kinds of services such as common calls, environment interception, priority calls, full calls, broadcasting and the like;
(3) The competition problem of multi-service to the shortage of channel resources;
(4) And meanwhile, the competition problem of different initiated services to the cross users is solved.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides a multi-service scene concurrency processing system applied to a narrow-band trunking communication system, which can effectively realize concurrency processing of complex service scenes, avoid service collision of cross users, solve the problem of intense competition of channel resources and realize smooth concurrency of multiple users and multiple services.
In order to solve at least one of the problems, the application provides the following technical scheme:
in a first aspect, the present application provides a multi-service scenario concurrency processing system applied to a narrowband trunking communication system, including:
the channel management module is used for determining the time occupied by the channel application after the service occurs;
the service management module is used for introducing a service access control layer at the core network side, and realizing the function of service control by combining the management and the use of the channel of the base station by the channel management module, wherein the core network is used for the problem of a user and the preliminary calculation problem of the priority and giving the service access control right to the service access control layer of the corresponding base station for exercise;
and the access side downlink service parallel control module is used for processing new access service requests by an access control layer of the base station, normally continuing the service under the condition that all concurrent services have no channel resources and conflict with participating users, and preferentially solving the user conflict if the conflict condition exists, and then solving the problem of the channel resources.
Further, the channel management module further includes: and applying for channel occupation in the connect stage, distributing channels after the called party is connected, and applying for channels on the calling side.
Further, the service management module further comprises a core network for completing the calculation of the service range, the calculation of the service range obtains the location LAI of all users when the location of the users is updated by inquiring the user database, and then the repeated part is removed from all LAIs to generate a set of the service LAI and the service establishment request is forwarded to the corresponding base station.
Further, the service management module further comprises a core network completing the function of calculating the user priority, if the user priority is calculated as a single call service, the user priority is calculated to be the priority value of the calling party and the called party, and the priority of the group call is calculated to be the priority of the service initiator and is transferred to the service access control layer for processing.
Further, the access side downlink service parallel control module further comprises a base station service access control layer initiating disconnection to a call under call, and completing call connection of the user preemption service when the user calls singly or in a whole call or in a broadcast call.
Further, the access side downlink service parallel control module further comprises that the called access gateway directly removes the lowest priority service from the channel queue when receiving the downlink paging instruction of the core network, and continues to carry out call connection.
Further, the access side downlink service parallel control module further comprises a step of calculating priority when the called access gateway receives a downlink paging instruction of the core network, so that the priority of the preemption service is ensured to be greater than the priority of the non-preemption service, and the group calling priority is ensured to be greater than the single calling priority.
Further, the access side downlink service parallel control module further comprises a step that when the called access gateway receives a downlink paging instruction of the core network, the newly initiated service is inserted into a designated position of the service queuing queue according to the priority order, and when the service is disconnected and the channel is released, the highest priority service is taken out from the priority queue to continue channel allocation.
According to the technical scheme, the multi-service scene concurrency processing system applied to the narrow-band trunking communication system successfully completes concurrency processing of complex service scenes through a service channel resource lag allocation design, a service channel management and user management separation design and an access layer downlink service concurrency control design, avoids service collision of cross users, solves the problem of intense competition of channel resources, and realizes smooth concurrency of multi-user multi-service.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a multi-service scenario concurrency processing system applied to a narrowband trunking communication system in an embodiment of the present application;
fig. 2 is a schematic diagram of a service structure of a trunking communication system according to an embodiment of the application;
fig. 3 is a schematic diagram of a traffic channel assignment timing design in an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a separation control of channel management and user management in an embodiment of the present application;
fig. 5 is a schematic diagram of downlink concurrency control in an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Considering the characteristics of small number of single base station channels, wide coverage geographic range and the like in a trunking communication system, the service types in the system are complex, various scheduling services are more, and users have different types and different priorities. The application provides a multi-service scene concurrent processing system applied to a narrow-band trunking communication system, which successfully completes concurrent processing of complex service scenes by a service channel resource lag allocation design, a service channel management and user management separation design and an access layer downlink service concurrent control design, avoids service collision of cross users, solves the problem of strong competition of channel resources and realizes smooth concurrency of multi-user multi-service.
In order to effectively realize concurrent processing of complex service scenarios, avoid service collision of cross users, solve the problem of intense competition of channel resources, and realize smooth concurrent of multi-user and multi-service, the application provides an embodiment of a multi-service scenario concurrent processing system applied to a narrowband trunking communication system, referring to fig. 1 and 2, wherein the multi-service scenario concurrent processing system applied to the narrowband trunking communication system specifically comprises the following contents:
a channel management module 10, configured to determine a channel application occupation time after the service occurs;
the service management module 20 is configured to introduce a service access control layer at a core network side, and combine management and use of a base station channel by using a channel management module to implement a service control function, where the core network is used for a problem of a user and a preliminary calculation problem of a priority, and gives a service access control right to a service access control layer of a corresponding base station for exercise;
the access side downlink service parallel control module 30 is used for the access control layer of the base station to process the new access service request, and normally perform service connection under the condition that all concurrent services have no channel resource and no conflict with the participating users, if the conflict condition exists, the user conflict is preferentially solved, and then the problem of the channel resource is solved.
As can be seen from the above description, the multi-service scenario concurrency processing system applied to the narrowband trunking communication system provided by the embodiment of the application can successfully complete the concurrency processing of the complex service scenario through the design of the delayed distribution of the service channel resources, the design of separation of the service channel management and the user management and the design of parallel control of the downlink service of the access layer, avoid the service collision of the cross users, solve the problem of intense competition of the channel resources, and realize smooth concurrency of multi-user multi-service.
In an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunked communication system of the present application, the channel management module further includes: and applying for channel occupation in the connect stage, distributing channels after the called party is connected, and applying for channels on the calling side.
It can be understood that the post-allocation design of traffic channel resources refers to the channel application occupation time after traffic occurs. Generally, two allocation strategies are mainly divided: the first is a pre-allocation strategy, namely, immediately applying for a service channel when receiving the service application, and occupying the channel by setting a flag bit or directly sending a channel allocation signaling; one is a hysteresis allocation policy, which allocates channels when traffic is successfully established.
Optionally, referring to fig. 3, the channel is pre-allocated and applied in the setup stage, the calling side applies for the channel in Ts-2 at the time of Ts-1; and then the channel occupation is applied in the connection stage, the channel is allocated in the Ts-3 stage after the called party is connected, and the calling party applies for the channel at the Ts-4 moment. The delay allocation can avoid the problem that the channel is not released immediately after being pre-occupied under abnormal conditions, avoid frequent application release of the channel and improve the effective utilization rate of channel resources.
It can be understood that the biggest characteristic in the narrow-band cluster communication system is that the scheduling service and the priority service, the scheduling service requires the priority guarantee to the channel resource and the user; priority traffic needs to guarantee that high priority traffic will acquire channel resources preferentially. If the soft switching system comprehensively considers the sequence of various service occurrence occasions, the participating users affected by the service and the overall distribution condition of channel resources required by the service, a plurality of service scenes need to be traversed and considered, and the complexity and the reliability of the system are extremely challenged.
Considering the problem of concurrent processing of multiple service scenarios, two problems are mainly solved:
(1) The problem of participating users is that the position of a base station where a communication service participant is located is found out;
(2) The number and distribution of channels required for the service.
Based on the situation, the service channel management and user management separation design introduces a service access control layer at the core network side and takes charge of the management and use of a Base Station (Base Station) channel; the Core network (Core Net) solves the problems of participating users and the preliminary calculation of priorities, and gives the service access control right to the service access control layer of the corresponding base station for exercise.
Optionally, referring to fig. 4, in an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the service management module further includes a core network for completing calculation of a service range, where the calculation of the service range obtains the location LAIs of all users when the locations of the users are updated by querying a user database, and then generates a set of the current service LAIs for all LAI removing repeated portions and forwards a service establishment request to a corresponding base station.
In an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the service management module further includes a core network for completing the function of calculating the user priority, and if the user priority is a single call service, the user priority is calculated, and if the user priority is a single call service, the user priority is the priority with a larger value of the calling priority and the called priority, and if the group call priority is the priority of the service initiator, the service priority is transferred to the service access control layer for processing.
In an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the access side downlink service concurrency control module further includes initiating disconnection to a call under call by a base station service access control layer when a user singly calls or calls in a whole or broadcast mode, so as to complete call connection of a user preemption service.
It can be appreciated that in some cases, the newly initiated service needs to interrupt the ongoing call of some users, and the base station service access control layer initiates disconnection to the ongoing call, so as to complete call connection of the user preempting service. The user preemption is mainly in two cases:
(1) User individual call situation
The ongoing call may be torn down to complete the user's preemption:
1) A user initiates a call to a user in a call state, and the user has higher user priority;
2) The user emergency calls the user in a call state.
(2) Full call, broadcast call
The whole call and the broadcast call are carried out according to the base station position (LAI), and all call sessions of the current base station are removed at the moment, so that all base station users are ensured to participate in the call.
Referring to fig. 5, in an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the access side downlink service concurrency control module further includes that when the called access gateway receives a downlink paging instruction of the core network, the preemptive call directly removes the lowest priority service from the channel queue, and continues to perform call connection.
The method comprises the steps of dividing the service types into two types of preemption service and non-preemption service according to specific service types, wherein the common single call service is the non-preemption service, and the emergency call, the full call and the broadcast call are preemption calls.
In an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the access side downlink service concurrency control module further includes that when the called access gateway receives a downlink paging instruction of the core network, priority calculation is performed, so as to ensure that the preemption service priority is greater than the non-preemption service priority, and the group calling priority is greater than the single call priority.
Specifically, the priority of the single call service is the priority of the single service, the priority of the group length of the group call service is calculated by weighting the priority of the group length of the group call service and the priority of the group call service, the priority of the single service is calculated by preempting the priority of the group call service, and then the weighted calculation of the preempting priority is carried out according to the service after the single and group call priorities are calculated. The calculated priority always ensures that the priority of the preemption service is larger than the non-preemption service, and the group calling priority is larger than the single calling priority.
In an embodiment of the multi-service scenario concurrency processing system applied to the narrowband trunking communication system of the present application, the access side downlink service concurrency control module further includes that when the called access gateway receives a downlink paging instruction of the core network, the newly initiated service is inserted into a designated position of the service queuing queue according to a priority order, and when the service is disconnected and the channel is released, the highest priority service is taken out from the priority queue to continue channel allocation.
Specifically, after the priority is calculated, the newly initiated service queries the local channel resource state and the current continuous service state, and inserts the newly initiated service into the appointed position of the service queuing queue according to the priority sequence after the unoccupied service state is found; and when the traffic is disconnected and the channel is released, the highest priority traffic is taken out of the priority queue to continue channel allocation.
Based on following the technical system of the trunking communication system, the application performs unified management by adjusting the resource allocation time, separating the user of the decoupling service from the channel control and calculating the weighting priority of the preemptive service and the non-preemptive service, and perfectly solves the efficient control and management of the channel resources in the complex service scene. The design of the application has the following advantages:
(1) The utilization rate of the channel resources is obviously improved, and the use of the channel resources is accurately controlled;
(2) Decoupling of resource preemption and user preemption, emergency services and high priority services are guaranteed with priority.
It will be apparent to those skilled in the art that embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principles and embodiments of the present application have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. A multi-service scenario concurrency processing system for a narrowband trunked communication system, the system comprising:
the channel management module is used for determining the time occupied by the channel application after the service occurs;
the service management module is used for introducing a service access control layer at a core network side, combining management and use of a base station channel by the channel management module, and realizing a service control function, wherein the core network is used for calculating a service range and a priority of a user, delivering a service access control right to the service access control layer of a corresponding base station for exercise, specifically, calculating the service range by inquiring a user database, acquiring the position LAI of all users when the positions are updated, and then generating an aggregation of the service LAI for all LAI removing repeated parts and forwarding a service establishment request to the corresponding base station; if the user priority is calculated as the single call service, the user takes the larger value of the calling priority and the called priority, and the priority of the group call takes the priority of the service initiator and transmits the service priority to the service access control layer for processing;
and the access side downlink service parallel control module is used for processing new access service requests by an access control layer of the base station, normally continuing the service under the condition that all concurrent services have no channel resources and conflict with participating users, and preferentially solving the user conflict if the conflict condition exists, and then solving the problem of the channel resources.
2. The multi-service scenario concurrency handling system for a narrowband trunked communication system of claim 1, wherein the channel management module further comprises: and applying for channel occupation in the connect stage, distributing channels after the called party is connected, and applying for channels on the calling side.
3. The multi-service scenario concurrency processing system for narrowband trunking communication system of claim 1, wherein the access side downlink service concurrency control module further comprises a base station service access control layer initiating disconnection to a call under call to complete call connection of user preemption service when the user calls singly or in full or in broadcast.
4. The multi-service scenario concurrency processing system for narrowband trunking communication system of claim 1, wherein the access side downlink service concurrency control module further comprises a called access gateway for directly tearing down the lowest priority service from the channel queue when receiving the downlink paging command of the core network, and continuing to connect the call.
5. The multi-service scenario concurrency processing system applied to a narrowband trunking communication system according to claim 1, wherein the access side downlink service concurrency control module further comprises a called access gateway performing priority calculation when receiving a downlink paging instruction of a core network, so as to ensure that the preemption service priority is greater than the non-preemption service priority and the group call priority is greater than the single call priority.
6. The multi-service scenario concurrency processing system for narrowband trunking communication system of claim 1 wherein the access side downlink service concurrency control module further comprises a called access gateway inserting newly initiated services into designated locations of service queuing queues according to priority order when receiving downlink paging instruction of core network, and taking out highest priority service from priority queues to continue channel allocation when there is traffic disconnection and channel release.
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