CN113473642A - Multi-service scene concurrent processing system applied to narrow-band cluster communication system - Google Patents
Multi-service scene concurrent processing system applied to narrow-band cluster communication system Download PDFInfo
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- CN113473642A CN113473642A CN202110509779.XA CN202110509779A CN113473642A CN 113473642 A CN113473642 A CN 113473642A CN 202110509779 A CN202110509779 A CN 202110509779A CN 113473642 A CN113473642 A CN 113473642A
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- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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Abstract
本申请实施例提供一种应用于窄带集群通信系统的多业务场景并发处理系统，包括：信道管理模块，用于确定在业务发生后的信道申请占用时机；业务管理模块，于在核心网侧引入业务接入控制层，结合信道管理模块对基站信道的管理和使用，实现业务控制的功能，其中，所述核心网用于用户的问题和优先级的初步计算问题，并将业务接入控制权交给对应基站的业务接入控制层行使；接入侧下行业务并行控制模块，用于基站的接入控制层处理新接入业务请求；本申请能够有效实现复杂业务场景的并发处理，避免交叉用户的业务碰撞，解决信道资源的激烈竞争问题，实现多用户多业务的有序高效并发。
The embodiment of the present application provides a multi-service scenario concurrent processing system applied to a narrowband trunking communication system, including: a channel management module, used for determining the channel application occupation timing after a service occurs; a service management module, which is introduced on the core network side The service access control layer, combined with the management and use of the base station channel by the channel management module, realizes the function of service control, wherein the core network is used for the preliminary calculation of user problems and priorities, and the service access control It is handed over to the service access control layer of the corresponding base station for exercise; the access side downlink service parallel control module is used for the access control layer of the base station to process new access service requests; this application can effectively realize the concurrent processing of complex service scenarios and avoid crossover User's business collision, solve the problem of fierce competition of channel resources, and realize the orderly and efficient concurrency of multi-user and multi-service.
Description
Technical Field
The application relates to the field of information communication, in particular to a multi-service scene concurrent processing system applied to a narrow-band trunking communication system.
Background
The narrow-band cluster communication system is mostly used in the field of private network communication and plays an important role in special fields. Due to the special and important role of the narrow-band trunking communication system, various characteristic functions are derived in the technical evolution development process, the narrow-band trunking communication system has common services such as point-to-point services, point-to-group services and the like, and also has special services such as scheduling services, priority services, join calls, three-party calls, secret services and the like, and the supported services are various and rich in variety. Abundant service types become a killer mace of the narrow-band trunking communication system, heavy service burden is brought to the system, and great test is brought to functional completeness and reliability of core switching control and channel control. The concurrent processing of multiple service scenes in the narrowband trunking communication system greatly increases the complexity of the system and provides a great challenge to the reliability of the system.
The inventor finds that the cluster communication system has the characteristics of small number of single base station channels, wide coverage geographical range and the like, the service types in the system are complex, various scheduling services are more, and users have different types and different priorities. The realization of the call data service of the switching system is greatly challenged by various services simultaneously initiated by various users. In order to solve the problem, the following technical problems exist:
(1) communication service can be initiated by various users such as an external network user, a scheduling user, a local user, a roaming user 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 nervous channel resource;
(4) the competition problem of different services initiated at the same time for cross users.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides a multi-service scene concurrent processing system applied to a narrow-band cluster communication system, which 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 smooth concurrency of multi-user multi-service.
In order to solve at least one of the above problems, the present application provides the following technical solutions:
in a first aspect, the present application provides a multi-service scenario concurrent processing system applied to a narrowband trunking communication system, including:
the channel management module is used for determining the channel application occupation time 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 a channel of the base station by the channel management module, wherein the core network is used for the preliminary calculation of the problems and the priorities of users, and the service access control right is handed to the service access control layer of the corresponding base station for use;
the access side downlink service parallel control module is used for processing a new access service request 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 participate in user conflict, and if the conflict exists, preferentially solving the user conflict and then solving the problem of the channel resources.
Further, the channel management module further includes: and applying for channel occupation at the connection stage, distributing channels after the called party is connected, and applying for the channels by the calling side.
Further, the service management module also includes a core network for completing the calculation of the service range, the calculation of the service range obtains the location LAI of all the users when updating the location by inquiring the user database, then removes the repeated part of all the LAIs to generate the collection of the service LAI of this time and forwards the service establishment request to the corresponding base station.
Furthermore, the service management module also includes a function of the core network for completing the calculation of the user priority, if the calculation of the user priority is a single-call service, the user takes the priority with a larger value of the calling priority and the called priority, and the group call priority takes the priority of the service initiator and transmits the service priority to the service access control layer for processing.
Furthermore, the access side downlink service parallel control module also comprises a base station service access control layer which initiates disconnection to the call in conversation when the user calls in single call or full call or broadcast, and completes the call connection of the user seizing the service.
Furthermore, the access side downlink service parallel control module also comprises a called access gateway which directly removes the lowest priority service from the channel queue for the preemption type call and continues the call connection when receiving the downlink paging instruction of the core network.
Furthermore, the access side downlink service parallel control module also includes a called access gateway which performs priority calculation when receiving a downlink paging command of the core network, so as to ensure that the priority of the preemptive service is greater than the priority of the non-preemptive service, and the group call priority is greater than the single call priority.
Furthermore, the access side downlink service parallel control module also comprises a called access gateway which inserts a newly-initiated service into the designated position of the service queuing queue according to the priority order when receiving a downlink paging instruction of the core network, and takes out the highest priority service from the priority queue to continue channel allocation when the service is disconnected and the channel is released.
According to the technical scheme, the multi-service scene concurrent processing system applied to the narrow-band cluster communication system successfully completes the concurrent processing of the complex service scene through the design of the lag distribution of the service channel resources, the design of the separation of the service channel management and the user management and the design of the parallel control of the downlink services of the access layer, avoids the service collision of cross users, solves the problem of the intense competition of the channel resources, and realizes the smooth concurrence of multiple users and multiple services.
Drawings
In order to more clearly illustrate 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, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 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;
fig. 2 is a schematic service structure diagram of a trunking communication system in an embodiment of the present application;
fig. 3 is a schematic diagram illustrating traffic channel allocation timing design in an embodiment of the present application;
FIG. 4 is a diagram illustrating separate control of channel management and user management in an embodiment of the present application;
fig. 5 is a schematic diagram of downlink traffic concurrency control in an embodiment of the present application.
Detailed Description
In order to make the objects, 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 with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In consideration of the characteristics of few single base station channels, wide coverage geographical range and the like in the trunking communication system, the system has complex service types and more scheduling services, and users have different types and different priorities. The application provides a multi-service scene concurrent processing system applied to a narrow-band cluster communication system, successfully completes concurrent processing of complex service scenes through a service channel resource lag distribution 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 intense competition of channel resources, and realizes smooth concurrence of multi-user multi-service.
In order to effectively implement concurrent processing of complex service scenarios, avoid service collisions of cross users, solve the problem of intense competition of channel resources, and implement smooth concurrency of multiple users and multiple services, the present application provides an embodiment of a multiple service scenario concurrent processing system applied to a narrowband trunking communication system, and referring to fig. 1 and fig. 2, the multiple service scenario concurrent processing system applied to the narrowband trunking communication system specifically includes the following contents:
a channel management module 10, configured to determine a channel application occupation time after a service occurs;
the service management module 20 is used for introducing a service access control layer at the core network side, and realizing the service control function 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 preliminary calculation of the problems and the priorities of the users, and the service access control right is handed to the service access control layer of the corresponding base station for use;
the access side downlink service parallel control module 30 is used for the access control layer of the base station to process a new access service request, and normally perform service connection under the condition that all concurrent services have no channel resources and participate in user conflict, and if the conflict exists, preferentially solve the user conflict and then solve the problem of channel resources.
As can be seen from the above description, the multi-service scenario concurrency processing system applied to the narrowband trunking communication system provided in the embodiment of the present application can successfully complete the concurrency processing of the complex service scenario 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 downlink services in the access stratum, thereby avoiding service collision of cross users, solving the problem of intense competition of channel resources, and achieving 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, the channel management module further includes: and applying for channel occupation at the connection stage, distributing channels after the called party is connected, and applying for the channels by the calling side.
It can be understood that the post-allocation design of traffic channel resources refers to the application of occupation time of the channel after the occurrence of traffic. In general, two allocation strategies are mainly distinguished: one is a pre-allocation strategy, namely, immediately applying for a service channel when receiving a service application, and allocating a signaling to occupy the channel by setting a flag bit or directly sending the channel; one type is a late allocation strategy that allocates channels when traffic is successfully established.
Optionally, referring to fig. 3, the channel is applied in setup phase in advance, and the called party applies for the channel at Ts-2 at the time of Ts-1 by the calling party; then, the channel occupation is applied only in the connection stage, the channel is allocated in the Ts-3 stage after the called party is connected, and the calling side applies for the channel at the Ts-4 moment. The problem that the channel is not used and released immediately after being pre-occupied under the abnormal condition can be solved by the aid of the delayed allocation, frequent application and release of the channel are avoided, and effective utilization rate of channel resources is improved.
It can be understood that the most important feature in the narrow-band cluster communication system is scheduling service and priority service, and the scheduling service requires priority guarantee for channel resources and users; priority traffic needs to ensure that high priority traffic preferentially acquires channel resources. If the soft switch system comprehensively considers the sequence of the occurrence time of various services, the participating users affected by the services and the overall distribution condition of the channel resources required by the services, too many service scenes need to be traversed and considered, and the complexity and reliability of the system can be greatly challenged.
The main solution to the problem of concurrent processing in multiple service scenarios is two problems:
(1) the problem of the participated user is to find out the position of the base station where the communication service participator is located;
(2) the number of channels required for the service and the distribution.
Based on the situation, the business channel management and the user management are separately designed to introduce a business access control layer at the core network side and take charge of the management and the use of a Base Station (Base Station) channel; the Core network (Core Net) solves the problem of the preliminary calculation of the problem and the priority of the participating users, and hands the service access control right to the service access control layer of the corresponding base station for use.
Optionally, referring to fig. 4, in an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the service management module further includes a core network that completes calculating a service range, where the service range is calculated by querying the user database, to obtain location LAIs at which all user locations are updated, then remove repeated portions of all the LAIs to generate a set of the service LAIs of this time, and forward a service establishment request to a corresponding base station.
In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the service management module further includes a function of a core network to complete calculation of user priority, if the calculation of the user priority is a single call service, the priority of a calling party and a called party is selected, and the priority of a group call is selected from the priority of a service initiator and the service priority is transmitted to a service access control layer for processing.
In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the access side downlink service parallel control module further includes that when a user calls a single call or a full call or a broadcast call, the base station service access control layer initiates disconnection to the call in conversation, so as to complete call connection of the user seizing the service.
It can be understood that, in some cases, a newly initiated service needs to interrupt the ongoing call of some users, and the service access control layer of the base station initiates disconnection to the ongoing call to complete call connection when the user seizes the service. There are two main situations for a user to seize:
(1) subscriber single call situation
The following two situations are that the ongoing call is torn down to complete the preemption of the user:
1) the user initiates a call to the user in the call state, and the user has higher user priority;
2) the user makes an emergency call to the user who is in the call state.
(2) Full call, broadcast type call
The full call and broadcast call is carried out according to the location of the base station (LAI), at the moment, all call sessions of the current base station are removed, and the base station users are ensured to participate in the call completely.
Referring to fig. 5, in an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the access side downlink service parallel control module further includes that when the called access gateway receives a downlink paging instruction of the core network, the called access gateway directly removes the lowest priority service from the channel queue for preemption type call, and continues call connection.
The method comprises the following steps that the specific service type is divided into a preemptive service and a non-preemptive service, the common single call service and the group call service are the non-preemptive service, and the emergency call service, the full call service and the broadcast call are the preemptive call.
In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the access side downlink service parallel control module further includes a called access gateway performing priority calculation when receiving a downlink paging instruction of a core network, so as to ensure that a priority of a preemptive service is greater than a non-preemptive priority, and a priority of a group call is greater than a single call priority.
Specifically, the single-call service is the priority of the single-call service when the calling priority and the called priority are higher, the priority of the single-call service is obtained by weighted calculation of the group length priority and the group call service priority of the group call service, and the priority of the preemption is calculated first and then weighted calculation of the preemption priority is carried out according to the service. The calculated priority level always ensures that the priority level of the preemptive service is greater than the priority level of the non-preemptive service, and the group call priority level is greater than the single call priority level.
In an embodiment of the multi-service scenario concurrent processing system applied to the narrowband trunking communication system, the access side downlink service parallel control module further includes that when the called access gateway receives a downlink paging instruction of the core network, a newly-initiated service is inserted into an assigned position of the service queuing queue according to a priority order, and when a service is disconnected and a channel is released, a highest-priority service is taken out from the priority queue to continue channel allocation.
Specifically, after the priority of a newly initiated service is calculated, the resource state of a local channel and the state of a current continuous service are inquired, and after the situation that the newly initiated service cannot be preempted is found, the newly initiated service is inserted into a specified position of a service queuing queue according to the priority sequence; when the service is disconnected and the channel is released, the highest priority service is taken out from the priority queue to continue the channel allocation.
According to the method, on the basis of following the technical system of the trunking communication system, the unified management is performed through resource allocation opportunity adjustment, decoupling service user and channel control separation, and weighted priority calculation of preemptive service and non-preemptive service, so that the efficient control and management of channel resources in a complex service scene are perfectly solved. The design of this application has following advantage:
(1) the utilization rate of channel resources is obviously improved, and the use of the channel resources is accurately controlled;
(2) the decoupling of resource occupation and user occupation, the emergency service and high priority service are preferentially ensured.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present 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, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A multi-service scenario concurrent processing system applied to a narrowband cluster communication system, the system comprising:
the channel management module is used for determining the channel application occupation time 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 a channel of the base station by the channel management module, wherein the core network is used for the preliminary calculation of the problems and the priorities of users, and the service access control right is handed to the service access control layer of the corresponding base station for use;
the access side downlink service parallel control module is used for processing a new access service request 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 participate in user conflict, and if the conflict exists, preferentially solving the user conflict and then solving the problem of the channel resources.
2. The system for concurrent processing of multiple service scenarios applied to narrowband cluster communication system according to claim 1, wherein the channel management module further comprises: and applying for channel occupation at the connection stage, distributing channels after the called party is connected, and applying for the channels by the calling side.
3. The system of claim 1, wherein the service management module further comprises a core network for calculating a service scope, and the service scope calculation obtains the LAI of the location of all the users when updating the location by querying a user database, and then removes the repeated part of all the LAIs to generate a set of the LAIs of the service and forwards the service establishment request to the corresponding base station.
4. The system of claim 1, wherein the service management module further comprises a function of calculating a user priority by the core network, wherein if the user priority is calculated as a single call service, the user takes the priority with a higher priority value of the calling party and the called party, 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.
5. The system of claim 1, wherein the access side downlink service concurrency control module further initiates a disconnect to a call in progress when a user calls a single call or a full call, or a broadcast call, and completes a call connection when the user seizes the service.
6. The system of claim 1, wherein the access side downlink traffic parallel control module further comprises a called access gateway, which directly removes the lowest priority traffic from the channel queue for preemption-based call and continues call connection when receiving a downlink paging command from the core network.
7. The system of claim 1, wherein the access side downlink traffic parallel control module further comprises a called access gateway performing priority calculation when receiving a downlink paging command from the core network, so as to ensure that the priority of the preemptive service is greater than the priority of the non-preemptive service, and the priority of the group call is greater than the priority of the single call.
8. The system of claim 1, wherein the access side downlink traffic parallel control module further comprises a called access gateway, which inserts a newly initiated traffic into a designated location of the traffic queuing queue according to a priority order when receiving a downlink paging command from the core network, and takes out a highest priority traffic from the priority queue to continue channel allocation when a traffic is disconnected and a channel is released.
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