CN1780416A - Method for realizing regional dispatch in grouped system - Google Patents

Abstract

The invention discloses a method for realizing regional scheduling in a trunking system, which includes the following steps: selecting an area on the positioning map of the dispatching station, and calculating all the trunking users in the area as the called members of this call List; the dispatching platform sends the group call request to the dispatching control center through the dispatching proxy server; the dispatching home register receives the call-up authentication request sent by the dispatching control center, and sends a response to the dispatching control center after authentication; the dispatching proxy server Interact with the dispatching station to establish a connection, and send a successful connection response to the dispatching control center; the base station system interacts with the terminal, completes user wireless resource allocation, and sends a paging success response to the dispatching control center; the dispatching control center sends a successful call establishment to the dispatching station instruct. The method enables the dispatcher to issue dispatching commands effectively, thereby improving the dispatching capability of the cluster system.

Description

A Method of Realizing Regional Scheduling in Cluster System

technical field

The invention relates to the field of cluster communication, in particular to a method for initiating a call to a cluster user in a designated area.

Background technique

The trunking communication system is an important branch of the mobile communication system. It is a mobile communication system used for group dispatching and command communication. It is mainly used in professional mobile communication fields, such as large enterprises, railways, hotels, security, taxi dispatching, ports, etc. . Different from ordinary mobile communication, the biggest feature of trunking communication is that voice communication adopts PTT (Push To Talk) button, which is connected in a push-to-talk manner, and the called party can answer without picking up the phone, and the connection speed is fast Can support functions such as group calling. The trunking communication system has a strong dispatching color. Through the dispatching operation, the dispatchers of the industry and the group can realize the functions of group status observation, dynamic reorganization, group management, voice monitoring, voice recording, and broadcasting.

After years of development, the positioning technology is becoming more and more perfect, and the technical system is relatively mature. So far, the positioning technologies used in the positioning business are divided into three types: network-based non-GPS (Global Position System) positioning technologies, such as Cellid-based positioning, enhanced forward link trilateration AFLT (Advanced Forward Link Trilateration), Enhanced observation time difference positioning E-OTD (Enhanced Observed Time Difference), etc.; traditional GPS-based positioning technology, the addition of GPS speeds up the positioning process and improves positioning accuracy; network-based and GPS-based hybrid positioning technology, using the network The information obtained, such as the signal of the base station, supplements the deficiency of the satellite, and at the same time, new network entities such as the mobile positioning center/positioning entity are added to further ensure the response time and accuracy of positioning.

The trunking communication system provides dispatchers with rich dispatching functions, such as group call, private call, broadcast, temporary group call, dynamic reorganization, etc., but it is difficult to provide dispatchers with visual dispatch basis. For example, when a dispatcher performs a dispatching service, he often wishes to initiate a call only to the cluster users in the specified area on the map. In the prior art, this problem in the cluster system has not been well solved.

Contents of the invention

The purpose of the present invention is to provide a positioning technology used in the trunking communication system, which solves the problem that it is difficult to provide dispatchers with visual dispatch basis.

The present invention provides a method for realizing regional scheduling in a cluster system, comprising the following steps:

Step 1: Select an area on the positioning map of the dispatching console, and calculate all the cluster users falling in this area, as the called member list of this call;

Step 2: the dispatching console sends a group calling request to the dispatching proxy server, and the request includes a list of called members;

Step 3: the dispatching proxy server forwards the calling request to the dispatching control center;

Step 4: the dispatching control center sends an origination authentication request to the dispatching home register;

Step 5: The dispatching attribution register authenticates and authorizes the calling request, and sends an authentication/authorization response to the dispatching control center;

Step 6: The dispatch control center sends a connection request to the dispatch station to the dispatch proxy server, and sends a paging request to all members to the base station system;

Step 7: The dispatching agent server and the dispatching station interactively establish a connection, and send a connection success response to the dispatching control center;

Step 8: The base station system interacts with the terminal to complete user wireless resource allocation, and then sends a paging success response to the dispatch control center;

Step 9: The dispatch control center sends a call establishment success indication to the dispatch station.

In the above step 2, the calling request also includes the user identification: user MDN (Mobile Dictionary Number) or VPN (Virtual Private Network) number or IMSI (International Mobile Subscriber Identification) or ESN (Electronic Serial Number).

In the above step 3, the call request forwarded by the dispatching proxy server to the dispatching control center includes dispatcher information and called user information.

In the above step 4, the dispatcher control center sends the dispatcher's information and the called user's information in the origination authentication request to the dispatcher's home register.

The above-mentioned step 5 specifically includes that the dispatching attribution register authenticates the authority of the dispatcher and the authority of the called user. After the authentication is passed, authorize the group call and the member of the call, including the authorization information of the call and the authorization information of the member, and then send the These authorization information are sent to the dispatch control center in the authentication/authorization response.

The above step 7 specifically includes the following steps:

701. The dispatching proxy server receives the connection request from the dispatching control center, allocates system resources for the call, and then forwards the connection request to the dispatching console;

702. After receiving the connection request from the dispatching proxy server, the dispatching station allocates system resources for the call, and then sends a connection response to the dispatching proxy server;

703. After receiving the connection response from the dispatching station, the dispatching proxy server forwards the connection response to the dispatching control center;

704. The dispatching control center receives the connection response from the dispatching agent server and allocates system resources for the dispatching station. So far, the call resource and the voice transmission link between the dispatching control center and the dispatching station are successfully established.

The above step 8 specifically includes the following steps:

801. After receiving the paging request from the dispatching control center, the base station system interacts with the terminal to complete user wireless resource allocation, and then sends a paging success response to the dispatching control center;

802. After receiving the paging response to the member from the base station subsystem, the dispatch control center allocates call-related system resources for the member. So far, the call resource and the voice transmission link between the dispatch control center and the terminal are successfully established.

The above step 9 specifically includes the following steps:

901. The dispatching control center receives the connection response from the dispatching proxy server and the paging success response of one or more group members from the base station subsystem, judges that the group has been established successfully according to a certain strategy, and then sends the group to the dispatching proxy server. Group establishment success indication;

902. The dispatch proxy server receives the call establishment success indication sent by the dispatch control center, and forwards the call establishment indication to the dispatch station.

Also includes step 10: the dispatcher station sends a call establishment success confirmation to the dispatching control center, and this step specifically includes the following steps:

1001. After receiving the call establishment success indication, the dispatcher sends a call establishment confirmation to the dispatching proxy server;

1002. The dispatch proxy server forwards the call establishment confirmation to the dispatch control center.

Step 11 is also included: the dispatching control center receives the call establishment success confirmation from the dispatching proxy server, and confirms that the call is successful.

The present invention provides the dispatcher with a regional scheduling method through the method of initiating a cluster call in a designated area on the map, and can only initiate calls to the cluster users in the designated area on the map, so that the dispatcher can issue dispatching commands effectively, thereby The scheduling capability of the cluster system is improved.

Description of drawings

Fig. 1 is a schematic structural diagram of a cluster system involved in the present invention;

Figure 2 is a flowchart of an embodiment of the method of the present invention.

Detailed ways

As shown in FIG. 1 , the network structure of the communication system involved in the present invention is mainly composed of the following systems: a trunking call control system, a trunking dispatching system, a positioning service system, a base station system, and a geographic information system. Each system can be interconnected through No. 7 signaling network or packet data network.

in:

(1) The trunking call control system consists of a dispatching control center DCC (Dispatching Control Center) and a dispatching home register DHR (Dispatching Home Register). The DCC is the control center of the trunking call, which is responsible for call management, call management, billing management and other functions of the trunking call (group call, private call, temporary group, broadcast, etc.). DHR is a cluster user database, which records the location information of cluster users and user business attribute information.

(2) The cluster scheduling system consists of a dispatch agent server (DAS, Dispatch Agent Server) and a dispatch console. DAS is the proxy server of the dispatching station, responsible for the access control of the dispatching station, call control agent, location service service agent and other functions. The dispatching console has a dispatching function, which provides users with a visual dispatching man-machine interface, and at the same time has the function of positioning service client, presenting map information and other functions for users.

(3) The positioning service system, according to the different positioning technologies, the composition of the positioning system is also different. The main function is to accept the location service request from the dispatching system, obtain the location information (longitude, latitude coordinates, etc.) of the requested cluster user through positioning technology, and send the location information to the dispatching system through the location service response. It should be pointed out that the present invention has no specific requirements for the positioning technology of the positioning service system itself, and can be any positioning technology, such as positioning technology based on Cell-ID, positioning technology based on AFLT, positioning technology based on GPS, and positioning technology based on gpsOne. technology and more.

(4) The base station system consists of a base transceiver station BTS (Base Transceiver System) and a base station controller BSC (Base Station Controller). The base station transceiver completes the modulation and demodulation of the baseband signal, the radio frequency signal transmission and other functions, and the base station controller completes the allocation of wireless resources, call processing, power control and supports various handovers of the terminal. The base station subsystem BSS is connected with the scheduling subsystem and the switching subsystem through standard interfaces to meet various service requirements of the trunking terminal, including trunking services, telephone services and data services.

(5) Geographic Information System, providing GIS services. Receive the GIS service request from the service requester, query the map database according to the location information (longitude, latitude, etc.), obtain geographic text descriptions, nearby feature information, and pictures, and send the GIS service response to the service requester.

It should be pointed out that in the present invention, the dispatching station also possesses the function of LCS Client (Location Service Client) while possessing the dispatching function. The premise of the present invention is that the cluster users have been positioned on the map of the dispatching platform, the cluster users have been represented on the map as scheduling objects, and the location information of each cluster user is stored.

Optionally, the network mechanism can also include a mobile switching system, which generally consists of a mobile switching center/visited location register MSC/VLR (Mobile Switch Center/Visited Location Register) and a home location register HLR (Home Location Register) to provide users with Provide mobile switching capabilities and interconnection and interworking functions. The mobile switching center and the dispatching control center are functionally independent and can be separated or combined physically. Since the mobile switching system is not an essential system in this communication system, it is not clearly marked in this network structure.

In the dispatching station, cluster users are clearly displayed and marked on the positioning map, and the dispatcher can select one or more users to initiate a cluster call according to the current dispatching scenario and the exact position of each member on the map. The selected method can be a rectangular area, a circular area, a fan-shaped area, a polygonal area, etc., depending on the ability to realize the algorithm, so that the cluster users falling in this area are called members, while those outside the area cluster users will not be called.

Fig. 2 is a flow chart of an example of initiating a cluster call in a designated geographical area according to the present invention.

(201) Select an area (can be a rectangular area, a circular area, a sector, a polygonal area, etc.) on the positioning map of the dispatching station;

(202) The dispatching station software converts the regional coordinates into latitude and longitude coordinates according to the zoom ratio of the map, and then determines which members fall in the selected group according to the latitude and longitude information of each cluster user stored in the dispatching station and according to the existing graphics algorithm. within the area of the group, resulting in a list of called group members;

(203) The dispatcher station sends the call-out request of the trunking call to the dispatching agent server, and the request includes the called trunking user list, and user identification, user MDN or VPN number or IMSI or ESN;

(204) dispatching proxy server forwards calling request to dispatching control center DCC (DispatchControl Center) after receiving the calling request of dispatching platform, and includes dispatcher information and called user information in the request;

(205) After the dispatching control center receives the call-out request of the dispatching proxy server, it sends a call-out authentication request to the dispatching attribution register DHR (Dispatch Home Register), and the request includes dispatcher information and called user information;

(206) After the dispatching attribution register receives the calling authentication request, it authenticates the authority of the dispatcher and the authority of the called user. Priority, speaking authority of members, call duration, wireless attributes, etc., and then send these authorization information to the dispatch control center in the authentication response;

(207) After receiving the successful authentication response of the dispatching home register, the dispatching control center sends a connection request to the dispatching proxy server, and sends a paging request to all call members to the base station system;

(2081) The dispatching proxy server receives the connection request from the dispatching control center, allocates system resources for the call, and then forwards the connection request to the dispatching console;

(2082) After the dispatcher receives the connection request from the dispatching proxy server, it allocates system resources for the call, and then sends a connection response to the dispatching proxy server;

(2083) After receiving the connection response from the dispatcher, the dispatching proxy server forwards the connection response to the dispatching control center;

(2084) The dispatching control center receives the connection response from the dispatching agent server and allocates system resources for the dispatching station, so far the call resource and the voice transmission link between the dispatching control center and the dispatching station are successfully established;

(2091) After receiving the paging request from the dispatching control center, the base station system interacts with the terminal to complete user wireless resource allocation, and then sends a paging success response to the dispatching control center;

(2092) After the dispatch control center receives the base station subsystem's paging response to the member, it allocates system resources related to the call for the member, so far the call resource and the voice transmission link between the dispatch control center and the terminal are successfully established;

(210) The dispatching control center receives the connection response from the dispatching proxy server and one or more group member paging success responses sent by the base station subsystem, judges that the group is established successfully according to a certain strategy, and then sends a message to the dispatching proxy server Group creation success indication;

(211) The dispatching proxy server receives the call establishment success indication sent by the dispatching control center, and forwards the call establishment indication to the dispatcher station;

(212) After the dispatcher receives the call setup success indication, it sends a call setup confirmation to the dispatching proxy server;

(213) The dispatching proxy server forwards the call establishment confirmation to the dispatching control center;

(214) The dispatching control center receives the call establishment success confirmation from the dispatching proxy server, and confirms that the call is successful.

So far, the cluster call is established successfully, and the dispatcher can issue dispatch commands to all members of the call.

Claims (10)

1. A method for realizing regional scheduling in a cluster system, characterized in that it comprises the steps: Step 1: Select an area on the positioning map of the dispatching console, and calculate all the cluster users falling in this area, as the called member list of this call; Step 2: the dispatching console sends a group calling request to the dispatching proxy server, and the request includes a list of called members; Step 3: the dispatching proxy server forwards the calling request to the dispatching control center; Step 4: the dispatching control center sends an origination authentication request to the dispatching home register; Step 5: The dispatching attribution register authenticates and authorizes the calling request, and sends an authentication/authorization response to the dispatching control center; Step 6: The dispatch control center sends a connection request to the dispatch station to the dispatch proxy server, and sends a paging request to all members to the base station system; Step 7: The dispatching agent server and the dispatching station interactively establish a connection, and send a connection success response to the dispatching control center; Step 8: The base station system interacts with the terminal to complete user wireless resource allocation, and then sends a paging success response to the dispatch control center; Step 9: The dispatch control center sends a call establishment success indication to the dispatch station. 2. The method according to claim 1, wherein in the step 2, the call request further includes user identification: user MDN or VPN number or IMSI or ESN. 3. The method according to claim 1, characterized in that in said step 3, the call request forwarded by the dispatching proxy server to the dispatching control center includes dispatcher information and called user information. 4. The method according to claim 1, characterized in that, in the step 4, the dispatcher control center sends the origination call authentication request to the dispatcher home register, which includes dispatcher information and called user information. 5. The method according to claim 1, wherein said step 5 specifically includes authenticating the authority of the dispatcher and the authority of the called user by the dispatching attribution register, and after the authentication is passed, the group call and the calling Member authorization includes call authorization information and member authorization information, and then sends these authorization information to the dispatch control center in the authentication/authorization response. 6. The method according to claim 1, characterized in that the step 7 specifically includes the following steps: 701. The dispatching proxy server receives the connection request from the dispatching control center, allocates system resources for the call, and then forwards the connection request to the dispatching console; 702. After receiving the connection request from the dispatching proxy server, the dispatching station allocates system resources for the call, and then sends a connection response to the dispatching proxy server; 703. After receiving the connection response from the dispatching station, the dispatching proxy server forwards the connection response to the dispatching control center; 704. The dispatching control center receives the connection response from the dispatching agent server and allocates system resources for the dispatching station. So far, the call resource and the voice transmission link between the dispatching control center and the dispatching station are successfully established. 7. The method according to claim 1, characterized in that the step 8 specifically includes the following steps: 801. After receiving the paging request from the dispatching control center, the base station system interacts with the terminal to complete user wireless resource allocation, and then sends a paging success response to the dispatching control center; 802. After receiving the paging response to the member from the base station subsystem, the dispatch control center allocates system resources related to the call to the member. So far, the call resource and the voice transmission link between the dispatch control center and the terminal are successfully established. 8. The method according to claim 1, characterized in that the step 9 specifically includes the following steps: 901. The dispatching control center receives the connection response from the dispatching proxy server and the paging success response of one or more group members from the base station subsystem, judges that the group has been established successfully according to a certain strategy, and then sends the group to the dispatching proxy server. Group establishment success indication; 902. The dispatch proxy server receives the call establishment success indication sent by the dispatch control center, and forwards the call establishment indication to the dispatch station. 9. The method according to claim 1, further comprising step 10: the dispatching station sends a call establishment success confirmation to the dispatching control center, and this step specifically includes the following steps: 1001. After receiving the call establishment success indication, the dispatcher sends a call establishment confirmation to the dispatching proxy server; 1002. The dispatch proxy server forwards the call establishment confirmation to the dispatch control center. 10. The method according to claim 1, further comprising step 11: the dispatching control center receives the call establishment success confirmation from the dispatching proxy server, and confirms that the call is successful.

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