CN113473642B - Multi-business scenario concurrent processing system applied to narrowband trunking communication system - Google Patents

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

Multi-business scenario concurrent processing system applied to narrowband trunking communication system

Technical field

This application relates to the field of information communication, and specifically to a multi-service scenario concurrent processing system applied to a narrowband cluster communication system.

Background technique

Narrowband trunking communication systems are mostly used in the field of private network communications and shoulder important responsibilities in special fields. Due to the special and important role of the narrowband trunking communication system, it has derived a variety of features and functions in the process of technological evolution and development. It not only has common services such as point-to-point and point-to-group services, but also has scheduling services, priority services, Special services such as calls, three-way calls, and confidential services can be added to support a wide variety of services. While the rich variety of services has become the trump card of the narrowband trunking communication system, it also brings a heavy service burden to the system, which poses a great test to the functional completeness and reliability of core switching control and channel control. The concurrent processing of multiple business scenarios in narrowband trunking communication systems greatly increases system complexity and poses huge challenges to system reliability.

The inventor found that the cluster communication system has the characteristics of a small number of single base station channels and wide geographical coverage. The types of services in the system are complex, there are many various scheduling services, and users have different types and different priorities. Multiple types of services initiated simultaneously by multiple types of users pose a great challenge to the realization of call data services in the switching system. To solve this problem, there are the following technical problems:

(1) Communication services can be initiated by various types of users such as external network users, dispatch users, local users, and roaming users;

(2) Multiple users can initiate various types of services such as ordinary calls, environmental listening, priority calls, all calls, broadcasts, etc.;

(3) Competition between multiple services for tight channel resources;

(4) Competition issues for cross-users from different services initiated at the same time.

Contents of the invention

In view of the problems in the existing technology, this application provides a multi-service scenario concurrent processing system applied to narrowband trunking communication systems, which can effectively realize concurrent processing of complex business scenarios, avoid business collisions of cross-users, and solve the fierce competition for channel resources. problem to achieve smooth concurrency of multiple users and multiple services.

In order to solve at least one of the above problems, this application provides the following technical solutions:

In the first aspect, this application provides a multi-service scenario concurrent processing system applied to a narrowband trunking communication system, including:

The channel management module is used to determine the timing of channel application and occupation after the business occurs;

The service management module introduces the service access control layer on the core network side, and combines the management and use of the base station channel with the channel management module to realize the function of service control. The core network is used for preliminary analysis of user problems and priorities. Calculate the problem and hand over the service access control rights to the service access control layer of the corresponding base station;

The access side downlink service parallel control module is used by the access control layer of the base station to process new access service requests. When there is no conflict between channel resources and participating users in all concurrent services, the service can be continued normally. If there is a conflict, Prioritize resolving user conflicts, and then resolve channel resource issues.

Further, the channel management module also includes: applying for channel occupation in the connect stage, allocating the channel after the called party is connected, and then the calling side applies for the channel.

Further, the business management module also includes the core network to complete the calculation of the business scope. The business scope is calculated by querying the user database, obtaining the location LAI of all users when the location is updated, and then removing duplicate parts from all LAI to generate the current service. The LAI collects and forwards the service establishment request to the corresponding base station.

Further, the service management module also includes the core network to complete the function of calculating user priority. If the user priority is calculated for a single call service, the priority value of the calling party and the called party is larger, and for the group call priority, the service origination value is used. Priority of the party, and pass the service priority to the service access control layer for processing.

Further, the access side downlink service parallel control module also includes: when the user makes a single call, a full call, or a broadcast call, the base station service access control layer will initiate a disconnection of the ongoing call to complete the call for the user to preempt the service. Continue.

Further, the access side downlink service parallel control module also includes the called access gateway, when receiving the downlink paging instruction from the core network, directly remove the lowest priority service from the channel queue for the preemption type call, and continue the call connection. .

Further, the access side downlink service parallel control module also includes the called access gateway performing priority calculation when receiving the downlink paging instruction from the core network to ensure that the priority of preemptive services is greater than the priority of non-preemptive services. The group call priority is greater than the individual call priority.

Further, the access side downlink service parallel control module also includes: when the called access gateway receives a downlink paging instruction from the core network, the newly initiated service is inserted into the designated position of the service queuing queue in order of priority. When there is 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.

It can be seen from the above technical solution that this application provides a multi-service scenario concurrent processing system applied to a narrowband trunking communication system, through the design of delayed allocation of service channel resources, the design of separation of service channel management and user management, and the design of parallel control of access layer downlink services. , successfully completed concurrent processing of complex business scenarios, avoided business collisions between cross-users, solved the problem of fierce competition for channel resources, and achieved smooth concurrency of multiple users and multiple services.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are: For some embodiments of the present application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a multi-service scenario concurrent processing system applied to a narrowband trunking communication system in an embodiment of the present application;

Figure 2 is a schematic diagram of the business structure of the cluster communication system in a specific embodiment of the present application;

Figure 3 is a schematic diagram of the design of service channel allocation timing in a specific embodiment of the present application;

Figure 4 is a schematic diagram of separate control of channel management and user management in a specific embodiment of the present application;

Figure 5 is a schematic diagram of downlink service concurrency control in a specific embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Considering that the cluster communication system has the characteristics of small number of single base station channels and wide geographical coverage, the types of services in the system are complex, there are many various scheduling services, and users have different types and different priorities. Multiple types of services initiated by multiple types of users at the same time pose great challenges to the realization of call data services in the switching system. This application provides a multi-service scenario concurrent processing system applied to narrowband trunking communication systems. Through the business channel The resource lag allocation design, the separation design of business channel management and user management, and the design of parallel control of downlink services at the access layer have successfully completed the concurrent processing of complex business scenarios, avoided business collisions of cross-users, and solved the problem of fierce competition for channel resources. Achieving smooth concurrency of multiple users and multiple services.

In order to effectively implement concurrent processing of complex business scenarios, avoid business collisions between cross-users, solve the problem of fierce competition for channel resources, and achieve smooth concurrency of multiple users and multiple services, this application provides a multi-service scenario applied to a narrowband trunking communication system For an embodiment of the concurrent processing system, see Figure 1 and Figure 2. The multi-service scenario concurrent processing system applied to the narrowband trunking communication system specifically includes the following content:

The channel management module 10 is used to determine the timing of channel application and occupation after the business occurs;

The service management module 20 is to introduce the service access control layer on the core network side, and combine the management and use of the base station channel by the channel management module to realize the function of service control, wherein the core network is used for user issues and priorities. Preliminarily calculate the problem and hand over the service access control right to the service access control layer of the corresponding base station;

The access side downlink service parallel control module 30 is used by the access control layer of the base station to process new access service requests. When there is no channel resource conflict between all concurrent services and participating users, the service can be continued normally. If there is a conflict, , give priority to solving user conflicts, and then solve channel resource problems.

As can be seen from the above description, the multi-service scenario concurrent processing system applied to the narrowband trunking communication system provided by the embodiment of the present application can adopt the lagging allocation design of service channel resources, the separation design of service channel management and user management, and the parallel control of access layer downlink services. The design successfully completes the concurrent processing of complex business scenarios, avoids business collisions between cross-users, solves the problem of fierce competition for channel resources, and achieves smooth concurrency of multiple users and multiple services.

In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the channel management module also includes: applying for channel occupation in the connect stage, allocating the channel after the called party is connected, and then the calling side Apply for channel.

It can be understood that the post-allocation design of service channel resources refers to the timing of channel application and occupation after the service occurs. Generally speaking, there are two main allocation strategies: one is the pre-allocation strategy, that is, immediately applies for the service channel when receiving the service application, and occupies the channel by setting the flag bit or directly sending channel allocation signaling; the other is the delayed allocation Strategy to allocate channels when the service is successfully established.

Optionally, see Figure 3. The pre-allocation method applies for the channel in the setup phase. The calling side applies for the channel at Ts-1, and the called party applies for the channel at Ts-2. Then, the allocated channel is allocated in the connect phase, and the called party is connected. The channel is then allocated at Ts-3 stage, and the calling side applies for the channel at Ts-4 time. Lagging allocation can eliminate the problem of channels being pre-occupied and then released if not used under abnormal circumstances, avoiding frequent requests for release of channels and improving the effective utilization of channel resources.

It can be understood that the biggest features of the narrowband trunking communication system are scheduling services and priority services. Scheduling services require priority guarantees for channel resources and users; priority services need to ensure that high-priority services obtain channel resources first. If the softswitch system comprehensively considers the sequence of timing of various services, the participating users affected by the services, and the overall distribution of channel resources required by the services, there will be too many business scenarios that need to be traversed and considered, and the complexity and reliability of the system will Sexuality will be greatly challenged.

Considering the problem of concurrent processing of multiple business scenarios, we mainly solve two problems:

(1) The problem of participating users is to find out the location of the base station where the communication service participants are located;

(2) The number and distribution of channels required by the business.

Based on this situation, the separation design of business channel management and user management introduces the business access control layer on the core network side, which is responsible for the management and use of the base station (Base Station) channel; the core network (Core Net) solves the problems and priorities of participating users The preliminary calculation problem is solved, and the service access control right is handed over to the service access control layer of the corresponding base station.

Optionally, referring to Figure 4, in an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the service management module also includes the core network to complete the calculation of the business scope, and the calculation of the business scope is through Query the user database to obtain the location LAIs of all users when their locations are updated, then remove duplicate parts from all LAIs to generate a set of current service LAIs and forward the service establishment request to the corresponding base station.

In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the service management module also includes the core network to complete the function of calculating user priority. If the calculation of user priority is a single call service, The priority value of the calling party and the called party is larger, and the priority of the group call is the priority of the service initiator, and the service priority is passed to the service access control layer for processing.

In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the access side downlink service parallel control module also includes base station service when the user makes a single call, a full call, or a broadcast call. The access control layer will initiate a disconnection of the ongoing call to complete the call connection for the user to preempt the service.

It is understandable that in some cases, newly initiated services need to interrupt the ongoing calls of some users. The base station service access control layer will initiate disconnection of the ongoing calls to complete the call connection for the users to preempt the services. There are two main situations of user preemption:

(1) User individual call situation

In the following two situations, the ongoing call will be torn down to complete user preemption:

1) The user initiates a call to a user in the calling state, and this user has a higher user priority;

2) The user makes an emergency call to the user in the calling state.

(2) All calls and broadcast calls

All calls and broadcast calls are performed according to the base station location (LAI). At this time, all call sessions of the current base station are removed to ensure that all base station users participate in the call.

Referring to Figure 5, in one embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the access side downlink service parallel control module also includes the called access gateway receiving the core network's When the downlink paging instruction is issued, the preemption type call will be directly removed from the channel queue with the lowest priority service, and the call connection will continue.

Among them, according to the specific service type, it is divided into two categories: preemptive services and non-preemptive services. Ordinary single call and group call services are non-preemptive services, and emergency calls, all calls, and broadcast calls are preemptive calls.

In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the access side downlink service parallel control module also includes: the called access gateway receives a downlink paging instruction from the core network. When , priority calculation is performed to ensure that the priority of preemptive services is greater than the priority of non-preemptive services, and the priority of group calls is greater than the priority of single calls.

Specifically, for the single call service, the priority of the single call service is the one with the higher calling and called priority. For the group call service, the priority of the group leader and the group call service priority are weighted to obtain the priority of the single service. The preemption class takes priority. After calculating the priority of single and group calls first, the preemption priority is weighted according to the service. The calculated priority always ensures that the priority of preemptive services is greater than the priority of non-preemptive services, and the priority of group calls is greater than the priority of individual calls.

In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system of the present application, the access side downlink service parallel control module also includes: the called access gateway receives a downlink paging instruction from the core network. 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 calculating the priority of the newly initiated service, after querying the local channel resource status and the current connected service status and finding that it cannot be preempted, it is inserted into the designated position of the service queue in order of priority; when a service is disconnected and the channel is released , take out the highest priority service from the priority queue and continue channel allocation.

It can be seen from the above that this application, on the basis of following the technical system of the cluster communication system, performs unified management through resource allocation timing adjustment, user and channel control separation of decoupled services, and weighted priority calculation of preemptive services and non-preemptive services. It perfectly solves the efficient control and management of channel resources in complex business scenarios. The design of this application has the following advantages:

(1) The channel resource utilization rate has been significantly improved, and the use of channel resources has been accurately controlled;

(2) Resource preemption and user preemption are decoupled, and emergency services and high-priority services are prioritized.

Those skilled in the art will understand that embodiments of the present invention may be provided as methods, devices, or computer program products. Thus, the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the invention 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, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (apparatus), and computer program products according to embodiments of the invention. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes 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 device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a use A device for realizing the functions specified in one process or multiple processes of the flowchart and/or one block or multiple blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions The device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device. Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, based on this The idea of the invention will be subject to change in the specific implementation and scope of application. In summary, the contents of this description should not be understood as limiting the invention.

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.