WO2018068611A1

WO2018068611A1 - Cluster user server and terminal, and method for processing region-limited service

Info

Publication number: WO2018068611A1
Application number: PCT/CN2017/102070
Authority: WO
Inventors: 闫翠翠; 李明皓; 郭建林; 王玮; 李鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-10-12
Filing date: 2017-09-18
Publication date: 2018-04-19
Also published as: CN107948922A

Abstract

Disclosed is a service-side processing method for a region-limited service. The method comprises: receiving a service initiation message sent by a cluster user terminal, wherein the message carries ECGI information, a user identification, a group identification and a service identification; determining whether the user terminal initiates a service within a limited region; when the user terminal belongs to the limited region, establishing a service context according to the type of the service; and notifying user terminals, in the group, within the limited region to join the service. Also disclosed are a user terminal processing method for a region-limited service, a cluster user server and a cluster user terminal. In the present invention, by means of presetting a limited region in an MCPTT server, a cluster user reporting ECGI position information in real time, and a GCSE AS maintaining group member instances inside and outside a service region, the management of cluster region services is completed, and the demand for region-limited services in an MCPTT service is fulfilled.

Description

Cluster user server and terminal, and processing method for area limited service

Technical field

The present invention relates to the field of trunking communication technologies, and in particular to a cluster of MCPTT (Mission Critical Push To Talk) cluster voice service standards based on a GCSE (Group Communication System Enabler) framework. User server and terminal and processing methods for area-limited services.

Background technique

A trunked mobile communication system is a dedicated service scheduling system in which multiple users (departments, groups) share a set of radio channels and dynamically use dedicated mobile communication systems for these channels, mainly for command and dispatch communication. The trunking communication system has the characteristics of sharing resources, sharing costs, multi-purpose and high-efficiency of shared channel equipment and services.

The service application of the trunked mobile communication system needs to set the service range for the cluster users according to the service type. This type of service can be called a regional limited service. For example, the VGCS (Voice Group Call Service) service and the VBS (Voice Broadcast Service) in the GSM-R (Global System for Mobile Communications-Railway) system of the existing railway. Business) business. Such services need to be carried out in a limited area when they are initiated, established, and released. When the service is in progress, if the users in the group leave the restricted area, the service will be interrupted. In the GSM-R system, the area-defined service is combined with the GSM network, and a dedicated GSM network, a dedicated mobile phone, and a special SIM (Subscriber Identity Module) card are required to cooperate with each other to complete the area-limited service.

With the continuous development of communication technologies and the increasing demands of users, group communication/cluster communication has gradually changed from traditional private network applications to public network applications. In this context, 3GPP (3rd Generation Partnership Project) It is proposed to apply the group communication/cluster communication standard framework GCSE on the LTE (Long Term Evolution) technology. The MCPTT cluster voice service standard and the eMBMS (enhaused Multimedia Boardcast Multicast Service) specification have been developed. MCPTT regulation The implementation standard of PTT (Push To Talk) service in LTE network is adopted, and the call control process is designed at the application layer to realize perfect voice clustering function.

With the evolution of communication technology, in order to further improve operational efficiency and improve service quality, operators in various cluster industries are increasingly demanding industry cluster communication services. If applied to the GSM-R system in the railway, its data service capability, bandwidth and frequency band interference are more and more difficult to meet the requirements of industry communication development. On the other hand, with the rapid development of LTE, the GSM-R market has been shrinking. It is predicted that GSM-R is expected to begin to decline in 2020. The communication of various industry clusters is facing the urgent requirements of industrial upgrading. The cluster communication technology based on LTE bearer network has become the trend of the times, and the mobile communication industry is in rapid development.

The existing GCSE framework is shown in Figure 1. The GCSE Application (GCSE Application) interacts with the GCSE AS (GCSE Application Server, GCSE Application Server) through C/S (Client/Server, Client/Server) mode to implement the service. The separation between the application and the bearer network enables the service to fully utilize the high bandwidth, low latency, and low cost of the eMBMS technology to provide users with a high-quality, diverse, and large-capacity cluster service experience. At the same time, such an interaction mode is also provided. Make users' management and maintenance more flexible and efficient.

In implementing the present invention, the inventors have found that in actual cluster service applications, there are still service requirements with limited service areas, such as a dispatching department for driving command on the railway, such as a marshalling yard and a dispatching station. The cluster user group needs to handle a large number of shunting operations in the service area, and its service areas are concentrated, and cluster users in the group that are not in the service area do not need to participate in the service. According to the definition of MCPTT service proposed by the current 3GPP organization, there is no clear definition of the system scheme and communication method for the area limited service.

Summary of the invention

The technical problem to be solved by the present invention is to provide a cluster user server and a terminal, and a method for processing a limited area service, which is to solve the problem that the prior art cannot meet the demand for the area limited service in the MCPTT service.

To solve the above technical problem, the present invention provides a server-side processing method for a region-limited service, including:

Receiving a service initiation message sent by the cluster user terminal, the message carrying the ECGI (E-UTRAN (Evolved UMTS (Universal Mobile Telecommunications System) Terrestrial Radio Access Network, evolved UMTS terrestrial radio access network) Cell Global Identifier , E-UTRAN cell global identifier) information, user identity, group identity, and service identity;

Determining whether the user terminal is a service initiated in a restricted area;

When the user terminal belongs to the restricted area, the service context is established according to the service type;

Notifying the user terminal in the group in the restricted area to join the service.

Optionally, the process of determining whether the user terminal is a service initiated in the restricted area includes:

The user list in the area is obtained, and it is determined whether the user terminal is in the intra-area list.

Obtaining a restricted area of the corresponding cluster group according to the group identifier;

Comparing the relationship between the ECGI information of the user terminal and the restricted area.

Optionally, before the determining whether the user terminal is a service initiated in the restricted area, the method further includes: pre-setting and storing the restricted area in units of the cluster user group.

Optionally, when the restricted area is preset, the setting area of the member with high authority in the group is not limited.

Optionally, after the user terminal in the group in the notification restricted area joins the service, the method further includes: receiving location information reported by the user in real time, and performing user service joining or user service in time when the user location information changes. Release.

Optionally, the method further includes: when the cluster group managed by the plurality of mission-critical push-to-talk MCPTT servers is reorganized, the MCPTT server receives the location information reported by the home subscriber, and manages the limited area of the respective cluster group. business.

The present invention also provides a user terminal processing method for a region-limited service, including:

Reporting user identifier and user location information to the cluster user server, where the user location information is ECGI;

The service is added according to the service access notification sent by the cluster user server.

Optionally, the process of reporting the user identifier and the user location information to the cluster user server includes:

Sending user identification and user location information to the cluster user server actively when logging in or exiting the corresponding group communication system pusher GCSE application or location changes; or

Periodically report user ID and user location information to the cluster user server; or

When the cluster user server actively queries the location information of each group member in the group and determines that the group belongs to the group according to the group identifier, the user identifier and the user location information are returned to the cluster user server.

The present invention also provides a cluster user server, including an MCPTT server and a group management server;

The MCPTT server includes:

The location information obtaining unit is configured to receive user identification information and user location information of the cluster user terminal, where the user location information is ECGI;

The regional service management unit is configured to process the initiation of the service, the establishment of the service context, the joining of the user service, and the release of the user service;

The integrated interworking gateway unit is configured to complete control plane message transmission between multiple MCPTT servers;

The group management server includes:

a restricted area setting unit configured to preset and store a restricted area in units of a cluster user group;

The location information analyzing unit is configured to determine, according to the preset restricted area and the location information provided by the cluster user terminal, the relationship between the location information of the user and the restricted area, in units of the cluster user group;

Group management unit, set to set the contracted user group in the cluster user group user.

The invention also provides a cluster user terminal, comprising:

The location information reporting unit is configured to report the user identifier and the user location information to the cluster user server, where the user location information is ECGI;

The regional service processing unit is configured to initiate, leave, end, and push-to-talk preemption of the MPCTT service, and process the service access notification, the service establishment notification, and the service interruption notification delivered by the service control message from the cluster user server.

The beneficial effects of the embodiments of the present invention are as follows:

The embodiment of the present invention completes the management of the cluster area service by pre-setting the restricted area in the MCPTT server, and the cluster user periodically reports the ECGI location information, the GCSE AS maintenance service group, and the group member instances outside the service area. The need for regionally restricted services in the MCPTT business. The invention defines a system and system management method for a restricted area service based on the GCSE framework, and the clustering service based on data, voice and multimedia can use the setting method of the group area, and the cluster application is separated from the LTE bearer network, and the architecture is more reasonable. . The invention fills the blank of the MCPTT restricted area service in the 3GPP standard, and satisfies the requirements of the strictly restricted cluster users of the service. In addition, the definition of the restricted area service of the present invention is placed at the application layer, and has nothing to do with the air interface technology unicast and multicast technologies; in the present invention, the filtering management of the personnel in the area and the manner in which the group members establish the service to achieve the lowest coupling When the restricted area is set, the area supporting the multicast scheme may be included, and the area supporting the unicast scheme may be included. The unit of the area is the ECGI of the LTE network as the location unit, which is compatible with the implementation of the trending multicast technology solution. Furthermore, the restricted area service system of the present invention can be integrated into the MCPTT service architecture in the existing protocol, and the regional management and the business process are separated in the system, the module design is reasonable, and the design idea of low coupling and high cohesion is met, and the 3GPP protocol is not affected. Evolution.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic structural view of a prior art GCSE framework;

2 is a structural diagram of a cluster user server according to an embodiment of the present invention;

3 is a structural diagram of a cluster user terminal according to an embodiment of the present invention;

4 is a flowchart of a server-side processing method for a region-limited service according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method for processing a user terminal of an area limited service according to an embodiment of the present invention; FIG.

6 is a flowchart of setting a restricted area of a limited area service according to an embodiment of the present invention;

7 is a flowchart of reporting and analyzing location information according to an embodiment of the present invention;

FIG. 8 is a flowchart of establishing an area limited service according to an embodiment of the present invention; FIG.

9 is a flowchart of a region-defined business process management according to an embodiment of the present invention;

FIG. 10 is a flowchart of establishing a regional service across an MCPTT Server according to an embodiment of the present invention.

detailed description

The present invention provides a method for processing a cluster user server and a terminal and an area-restricted service, and the present invention provides a method for processing a cluster user server and a terminal and an area-restricted service. The invention is described in further detail. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention provides a communication system for MCPTT area-defined services based on the GCSE framework, including an area-defined service cluster user terminal and a cluster user server based on the MCPTT Client. Among them, MCPTT defines the implementation standard of PTT service under LTE network, and designs the call control process at the application layer to realize perfect voice clustering function. PTT, also known as "Push-to-Talk", is a mobile phone service that originates from cluster communication technology. PTT realizes the mobile voice service of the walkie-talkie, which has a short call setup time, the speech only occupies the channel, and the listener only listens to the channel, and the receiver can receive the call information at any time without going off-hook. MCPTT Server is an instance of GCSE AS to centrally manage key business functions of MCPTT, such as cluster user group management, multicast broadcast service management, floor control, emergency call management, and private call management. In actual deployment, MCPTT Server can be deployed in a centralized or distributed manner. It is composed of two or more MCPTT Servers in the form of MCPTT Server partner management. One MCPTT Server is used as the primary system, and other systems are used as partner systems. User management. The information is stored in the main system, including user configuration, user service permissions, and so on. The communication system and communication method are described in detail below:

Example 1

A cluster user server according to an embodiment of the present invention, as shown in FIG. 2, includes an MCPTT server and a group management server. The MCPTT server includes a location information acquiring unit, a regional service management unit, and a converged interworking gateway unit, and the group management server includes a restricted area setting unit, a location information analyzing unit, and a group management unit.

The location information obtaining unit is configured to receive user identification information and user location information of the cluster user terminal, where the user location information is an ECGI reported by the user.

The regional service management unit is configured to handle the initiation of the service, the establishment of the service context, the joining of the user service, and the release of the user service. At the time of establishment of the service, the regional service management unit requests the location information analysis unit to the location user list and the location information list currently resident by the user list, and sends the service establishment process to the user one by one; when the service is performed, the location information analysis unit reports The user location information update notification, joining the user or releasing the user service, the notification carrying the added/released user identification list and the location information list of the user list.

The Fusion Interworking Gateway unit is configured to complete control plane messaging between multiple MCPTT servers;

The restricted area setting unit is configured to preset and store the restricted area in units of the cluster user group; the restricted service area includes an ECGI list, an association relationship between the storage area and the user group in the restricted area.

The location information analysis unit is configured to determine the relationship between the location information of the user and the restricted area according to the location information (ie, ECGI) provided by the preset restricted area and the cluster user terminal in a cluster user group; the location information analysis unit maintenance area The internal user list, the out-of-area user list, and the location information change user list; when the service is performed, when the service is updated, the notification area is notified. The management unit promptly informs the user to participate in the cluster service or exit the cluster service.

The group management unit is set to set the users who are contracted in the cluster user group in units of cluster user groups.

Example 2

As shown in FIG. 3, a cluster user terminal according to an embodiment of the present invention includes a location information reporting unit and a regional service processing unit.

The location information reporting unit is configured to report the user identifier and the user location information to the cluster user server, where the user location information is the ECGI in the currently camped LTE network; the reporting manner may be real-time reporting or periodic reporting.

The regional service processing unit cooperates with the MCPTT server to complete the MCPTT business process control. It is used for control plane process control such as initiation, departure, termination, and push-to-talk preemption of the MPCTT service, and processes service access notifications, service establishment notifications, and service interruption notifications delivered by service control messages from the cluster user server.

Example 3

When the cluster user server shown in FIG. 2 is used, the server-side processing method of the area-limited service according to the embodiment of the present invention is as shown in FIG. 4, and includes the following steps:

In step s401, the restricted area is preset and stored in units of cluster user groups. In this embodiment, the service provider authorizes part of the service management user to set a restricted area in the MCPTT Server in advance, and stores it in the restricted area setting unit. The restricted area is composed of several ECGI lists, and stores the mapping relationship with the user group. . In addition, when a restricted area is set in advance, a member setting area having a high authority in the group is not limited.

Step s402: Receive a service initiation message sent by the cluster user terminal, where the message carries the ECGI information, the user identifier, the group identifier, and the service identifier. In this embodiment, after receiving the message, the user information and the group information check need to be completed.

Step s403: Determine whether the user terminal is a service initiated in the restricted area; if yes, go to step s404; otherwise, notify the user that the service area is restricted, and the service establishment fails. This implementation In an example, two ways can be used to determine whether the user terminal is a service initiated in a restricted area. One method is to obtain a user list in the area, and determine whether the user terminal is in the intra-area list; specifically: querying the location information analysis unit, obtaining the user list in the area, and determining whether the initiating user is in the intra-area list. The method of obtaining the restricted area of the corresponding cluster group according to the group identifier, and then comparing the relationship between the ECGI information of the user terminal and the restricted area; specifically: the area that the area service management unit carries according to the area And interacting with the restricted area setting unit, acquiring the restricted area corresponding to the user group, and determining the relationship between the ECGI information carried by the user and the restricted area.

In step s404, a service context is established according to the service type. In this embodiment, establishing a service context according to the service type includes assigning a call identifier, and assigning an IP address and a port to the initiating user.

Step s405, notifying the user terminal in the group in the restricted area to join the service. In this embodiment, the MCPTT Server area service management unit requests the location information analysis unit from the location information analysis unit and the user location information list to notify the users in the group to join the service.

In this embodiment, after the user terminal in the notification restricted area joins the service, the method further includes receiving the location information reported by the user in real time, and timely adding the user service or the user service when the user location information changes. Release. Specifically include:

When the service is in progress, the MCPTT Server location information acquisition unit receives the location information reported by the user, that is, the ECGI information, and the location information analysis unit maintains the location information of the cluster user instance in real time; when the user location information changes, it needs to report to the location information acquisition unit in time. The MCPTT Server area service management unit maintains user services and promptly informs users to join or exit the cluster service.

When the service is performed, the MCPTT Server area service management unit sends a service access message to the user that is updated in the restricted area when receiving the user location area update notification from the location information analysis unit, including:

(1) When the service is in progress, when the user in the group moves from outside the restricted area to the restricted area, the location information analyzing unit sends the location update to the intra-area notification to the regional service management unit, and the regional service management unit notifies the user to join the service. ;

(2) When the service is in progress, the user in the group performs the booting of the terminal and enters the network for the first time. The location information analyzing unit sends the location update to the regional service management unit to notify the user of the location update, and the MCPTT Server service management unit notifies the user to join the service.

At the same time, the MCPTT Server area service management unit periodically informs the user to join the network after the service is released and the user in the group releases/rejects the service.

In addition, when the service is in progress, when the user in the group leaves the restricted area, the location information analysis unit sends the location update to the regional service management unit to update the location to the out-of-area notification, and the MCPTT Server service management unit needs to end the user's service, and if necessary, terminate the entire area. Limited business.

In this embodiment, the method further includes a communication method for defining a service across the MCPTT Server management area: when a plurality of key tasks are manually reconfigured by the cluster group managed by the MCPTT server, the MCPTT server receives the location information reported by the home user, And manage the regional restricted services of their respective cluster groups. Specifically, MCPTT supports reorganization operations between user groups. This operation allows two user groups to be temporarily merged into one group. Therefore, there may be cases where services are defined across the MCPTT Server management area. In this case, the management mode is that the user reports the location information to the home MCPTT server, and the respective MCPTT Server manages the area-limited service of the subscription group. When the temporary group service is initiated, the service request is transmitted through the converged interworking gateway, and the respective MCPTT Servers establish service context information, and the respective MCPTT Server manages the user area limited service of the self-signed group.

The embodiment further includes a communication method for the idle state of the service, which specifically includes:

The MCPTT Server location information obtaining unit receives the ECGI sent by the user, and the location information analyzing unit and the group management unit acquire the user group identifier of the user, and then interact with the restricted area setting unit to obtain the restricted area corresponding to the user group identifier. Thereby, the location information analysis unit determines whether the user is within the restricted area by comparing with the configured restricted area. By this means, the location information analysis unit maintains three lists for each user group, namely, an intra-area user list, an out-of-area user list, and a location information update user list.

Example 4

When the cluster user terminal shown in FIG. 3 is adopted, an area limited industry of the embodiment of the present invention The processing method of the user terminal is as shown in FIG. 5, and includes the following steps:

In step s501, the user identifier and the user location information are reported to the cluster user server, where the user location information is ECGI. In this embodiment, the process of reporting the user identifier and the user location information to the cluster user server includes: actively sending the user identifier and the user location information to the cluster user server when the login or the corresponding GCSE application or the location changes; or The cluster user server reports the user ID and the user location information; or the cluster user server actively queries the location information of each group member in the group, and determines that the group belongs to the group according to the group identifier, and returns the user identifier and the user location information to the cluster. User server. In this embodiment, when the user initiates the service, the regional service processing unit requests the service from the MCPTT server, and the message carries the ECGI information, the user identifier, the group identifier, and the service identifier of the currently camped LTE cell.

In step s502, the service is added according to the service access notification sent by the cluster user server.

The embodiment further includes a communication method of the service idle state, which specifically includes: the location information reporting unit reports the ECGI information of the currently camped LTE cell to the home MCPTT server; when the user terminal is switched or reselected, the location information reporting unit reports the information in real time. The resident target ECGI information and the user identification information are reported to the MCPTT Server periodically in combination with the periodic transmission mode.

Example 5

This embodiment is a communication method for the area-defined service of the centrally deployed MCPTT Server, and includes the following steps:

Step 1: The authorized user sets a restricted area for the cluster user group in advance, and stores it in the restricted area setting unit. The restricted area is a list composed of several ECGIs, and stores the association relationship between the restricted area and the user group. In this embodiment, the process of setting the area limited service restricted area is as shown in FIG. 6. The authorized user sets the restricted area in the GCSE AS according to the working area corresponding to the cluster user by using the network management software. For example, the scope of the railway station, the work area of the staff in the side field station, and so on. These areas are deployed in an LTE network as a list of several ECGIs with at least one ECGI in the list.

Step 2: The user reports its user location information to the MCPTT Server. User terminal The user's information is transmitted to the MCPTT Server in real time and periodically through the user terminal;

Specifically, there are several ways for a user terminal to report location information to the MCPTT Server:

1) Active reporting: When the cluster user terminal logs in or quits its corresponding GCSE Application, or the location of the cluster user terminal changes, it actively sends its user identification information to the GCSE AS, so that the GCSE AS can acquire and analyze the user. Location information; when the cluster user in the connected state performs the cell handover; or the cluster user in the idle state performs the TAU (Tracking Area Update), or the cluster user in the idle state performs the TAC (Tracking Area Code) Re-election) and so on. When the cluster user terminal sends the user identification information to the GCSE AS, it is transparently transmitted to the MCPTT Server through the LTE bearer network through the GC1 interface (Session Initiation Protocol) message defined in the protocol.

2) Periodic report type: The ECGI information of the cluster user terminal is reported to the MCPTT Server through the MCPTT client period. The periodic report carries the user's identity, group ID, and ECGI information.

3) Passive query: The MCPTT Server actively queries the location information of each group member in the group, and carries the group ID. After receiving the group, the group member determines that it is located in this group and returns its ECGI information and user ID to the MCPTT Server.

Step 3: After receiving the ECGI of the user, the MCPTT Server compares with the configured restricted area ECGI list to determine whether the terminal where the user is located belongs to the restricted area.

Specifically, after acquiring the location information of the user, the location information acquiring unit transmits the user identifier and the location information to the location information analysis unit, and the location information analysis obtains the group identifier to which the user belongs according to the user identifier, and then acquires the corresponding cluster according to the group identifier. The restricted area of the group is then compared with the relationship between the user's ECGI information and the restricted area. The reporting and analysis process of the location information is shown in FIG. 7 . Further, the user list in the maintenance area and its user ECGI list, out-of-area user list, and area information update user list. When the MCPTT Server receives the report information from the user location, it triggers the update of the user list in the area and its user ECGI list and the area outside the area. The user list and the area information update the user list.

To prevent the same user from frequently updating the location information, the MCPTT Server can set the protection timer X. The timing is Y. After the user reports the location information for the first time, if the location information of the user is not received within the duration Y, the area is updated. The internal user list and its user ECGI list, out-of-zone user list, and location information update user list.

Step 4: When the cluster user requests the service from the MCPTT server, the cluster user carries the service attribute information such as the ECGI information, the user identifier, the group identifier, and the service identifier of the currently camped LTE cell.

Specifically, when the user initiates the cluster service, the location information reporting unit in the MCPTT client reads the ECGI information of the LTE cell where the terminal resides. The form of the callback may also be adopted. When the resident ECGI changes, the LTE network notifies the MCPTT Client location information reporting unit. The location information reporting unit sends the corresponding ECGI information of the LTE to the MCPTT Server.

Step 5: After receiving the user identifier and the ECGI, the MCPTT Server regional service management unit determines whether the user is in the restricted area.

The area-defined service establishment process in the embodiment of the present invention is as shown in FIG. 8. Specifically, the restricted area associated with the user group is searched in the restricted area service unit according to the group identifier carried by the user when the service is initiated, and the user-initiated Whether the location information belongs to the restricted area and belongs to the restricted area, the service context is established according to the service type (allocation of the call identifier, and the IP and port are allocated to the initiating user); otherwise, the user is notified that the service area is limited and the service establishment fails; further, The regional service management unit requests the location information analysis unit to the user identifier in the area and the current ECGI information list in which the user is located, so as to notify the users in the group to join the service;

Step 6: When the service is in progress, the MCPTT Server location information acquisition unit still needs to receive the location information reported by the user in real time, and the location information analysis unit maintains the location information of the cluster user instance in real time; when the service is performed, when the user location information changes, it still needs to be timely The location information acquisition unit reports that the MCPTT Server area service management unit can maintain user services and notify users to participate in cluster services or exit cluster services.

Specifically, when the service is in progress, the MCPTT Server regional service management unit receives the arrival. When the user location area update notification is sent from the location information analysis unit, the service access message is sent to the user who is updated in the restricted area. The area-defined service process management process in the embodiment of the present invention is as shown in FIG.

1) When the service is in progress, when the user in the group moves from outside the restricted area to the restricted area, the location information analyzing unit sends the location update to the intra-area notification to the regional service management unit, and the regional service management unit notifies the user to join the service;

2) When the service is performed, the user in the group performs the booting of the terminal and enters the network for the first time. The location information analyzing unit sends the location update to the regional service management unit to notify the user of the location update, and the MCPTT Server service management unit notifies the user to join the service;

The MCPTT Server area service management unit initiates a service establishment process to users in the restricted area by using unicast technology or multicast technology according to the number of users and the configuration of the network. Under the unicast technology, the LTE bearer network allocates a specific frequency to each user. The users in the group in the MCPTT Server restricted area send the service establishment process, carrying the service identifier, call type, and group identifier. In the case of multicast, multicast. The intra-group users in the area jointly receive notifications on the broadcast channel to uniformly receive services on the common channel.

Step 7: After the service is released, after the user in the group releases/rejects the service, the MCPTT Server area service management unit periodically notifies the user to join the network;

Step 8: When the service is in progress, when the user in the group leaves the restricted area, the location information analyzing unit sends the location update to the regional service management unit to update the user identifier of the group call area, and the MCPTT Server service management unit needs to end the user. The business, when necessary, ends the restricted business throughout the region.

Example 6

This embodiment is a communication method for the area-defined service of the MCTT server in a distributed manner. The process of establishing an area service across the MCPTT Server in the embodiment of the present invention is as shown in FIG. 10, and includes the following steps:

Here, we assume that User 1, User 2, and User 3 sign up to MCPTT Server1, sign up to Group1, and set the restricted area to Area1; User 4, User 5, and User 6 sign up to MCPTT. Server2, signed to Group2, and the restricted area is Area2.

The authorized user merges Group1 and Group2 into a temporary group Group3. According to the 3GPP protocol, MCPTT Server1 and MCPTT Server store temporary group information, including temporary group number Group3 and group priority. It should be understood that User X is used here to distinguish unused users. GROUPX is used to distinguish cluster groups. These terms are used to distinguish users and groups of users, but users, number, and group identifiers should not be limited to these terms.

Area1 is a restricted area of the user service. After the network management is configured in the background, it is stored as a list of several ECGIs and associated with Group1.

Similarly, Area2 is a restricted area for user services. After the network management is configured in the background, it is stored as a list of several ECGIs and associated with Group2.

When the cluster user 1, user 2, and user 3 are updated, the ECGI information and the user ID are reported to the home MCPTT server. The MCPTT Server location information acquisition unit receives the location information of the users and forwards the location information to the location information analysis unit for processing. First, the group management unit is used to resolve the temporary group number, and the group ID to which the user belongs is obtained, that is, Group1, and then the preset restricted area Area1 is obtained according to Group1, and whether the location information ECGI of each user belongs to Area1 is analyzed. Therefore, the user list in the area and its current location area, as well as the out-of-area user list, and the location information update user list can be obtained.

When the user 1 initiates the service outside the restricted area, the user carries the ECGI information of the currently camped LTE and the temporary group number Group3. After receiving the user information and the temporary group number, the MCPTT Server1 area service management unit parses the temporary group Group3 identifier and searches for The user group Group1, which belongs to the user, obtains the restricted area Area1 configured by the user, and finds that the ECGI of the user 1 is not in the area area. The MCPTT Server service area management unit prompts the user 1 to initiate the service failure.

When the location of the user 1 moves into Area1, the location information of the user is updated in real time to the area analysis unit of the MCPTT Server, which maintains the user list in the area and its current location information, and the list of users outside the area. At this time, user 1 initiates a temporary group service, carrying the user ID and temporary group. The group 3 and the current location information ECGI are identified. The MCPTT Server service area management unit finds that the user authenticates the user and the temporary group in the area, and transmits the service establishment request through the convergence and interworking gateway, and carries the temporary group identifier Group3. The MCPTT Server2 area service management unit resolves the temporary group number Group3 and resolves the user group that belongs to its own MCPTT Server, that is, Group2. The regional service management unit obtains the user members in the corresponding area from the location information analysis unit, and carries the Group2. After the acquisition is completed, After the members of the group are authenticated one by one, a service establishment notice is issued.

At the same time, MCPTT Server1 performs the same work, decomposing the temporary group Group3 identifier, and obtaining the user group Group1 belonging to itself; obtaining the members in the group within Area1 from the location information obtaining unit through Group1, and authenticating the members in the group one by one, The service establishment notice is issued.

The location information unit in the MCPTT Server1 and the MCPTT Server2 obtains the user location information in real time, and the location information analysis unit updates the user list according to the location information reported by the user and the user list in the limited area analysis area and its current location information, the out-of-area user list, and the location information. . When the location information of the user is updated from the area to the outside of the area, or when updating from outside the area to the area, it is necessary to notify the area service management unit to notify the user to release the service or re-establish the service. When the business is in progress, the location information changes included include:

1) When the user in the group moves from outside the restricted area to the restricted area, the location information analyzing unit in the user's home MCPTT Server sends a location update to the regional service management unit to notify the user that the user joins the service;

2) The user in the group performs the booting of the terminal, enters the network for the first time, and the location information analysis unit of the user belonging to the MCPTT Server sends a location update to the regional service management unit to notify the user of the location update, and the MCPTT Server service management unit notifies the user to join the service;

3) When the user in the group leaves the restricted area, the user's home MCPTT Server location information analysis unit sends the location update to the regional service management unit to update the location to the out-of-area notification. The MCPTT Server service management unit needs to end the user's service, and if necessary, terminate the entire area. Limited business.

Embodiment 5 and Embodiment 6 are business processes and frameworks with strictly restricted regions. According to this functional framework and process, the service restricted area can be set to ECGI cell, GPS, and kilometer, and the management of regional services. The above framework and analysis process can still be employed, and the above methods are included herein but are not limited thereto. You can set the MCPTT service requirements that are not strictly restricted in the area. The restricted users can set the personnel rights in the group in the restricted area setting unit. The setting area of the members with high authority in the group is not limited, and some group members set strict areas. Restricted, MCPTT Server location information analysis, filtering the location information of users without restrictions, only analyzing strictly restricted group members, providing regional management personnel parameters for the business area management unit, this method will be more flexible to meet the actual cluster The needs of the user organization, at the same time, can prevent the impact on the network caused by the excessive concentration of the mobile service user location information.

The invention completes the management of the cluster area service by satisfying the MCPTT server in the restricted area, the cluster user real-time reporting of the ECGI location information, the GCSE AS maintenance service area, and the group member instances outside the service area, and satisfies the MCPTT. The need for regionally restricted services in the business. The invention defines a system and system management method for a restricted area service based on the GCSE framework, and the clustering service based on data, voice and multimedia can use the setting method of the group area, and the cluster application is separated from the LTE bearer network, and the architecture is more reasonable. . The invention fills the blank of the MCPTT restricted area service in the 3GPP standard, and satisfies the requirements of the strictly restricted cluster users of the service. In addition, the definition of the restricted area service of the present invention is placed at the application layer, and has nothing to do with the air interface technology unicast and multicast technologies; in the present invention, the filtering management of the personnel in the area and the manner in which the group members establish the service to achieve the lowest coupling When the restricted area is set, the area supporting the multicast scheme may be included, and the area supporting the unicast scheme may be included. The unit of the area is the ECGI of the LTE network as the location unit, which is compatible with the implementation of the trending multicast technology solution. Furthermore, the restricted area service system of the present invention can be integrated into the MCPTT service architecture in the existing protocol, and the regional management and the business process are separated in the system, the module design is reasonable, and the design idea of low coupling and high cohesion is met, and the 3GPP protocol is not affected. Evolution.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Industrial applicability

Claims

A server-side processing method for a region-limited service, including:

Receiving a service initiation message sent by the cluster user terminal, where the message carries an evolved universal mobile communication system terrestrial radio access network cell global identifier ECGI information, a user identifier, a group identifier, and a service identifier;

Determining whether the user terminal is a service initiated in a restricted area;

When the user terminal belongs to the restricted area, the service context is established according to the service type;

Notifying the user terminal in the group in the restricted area to join the service.
The server-side processing method of the area-restricted service according to claim 1, wherein the process of determining whether the user terminal is a service initiated in the restricted area comprises:

The user list in the area is obtained, and it is determined whether the user terminal is in the intra-area list.
The server-side processing method of the area-restricted service according to claim 1, wherein the process of determining whether the user terminal is a service initiated in the restricted area comprises:

Obtaining a restricted area of the corresponding cluster group according to the group identifier;

Comparing the relationship between the ECGI information of the user terminal and the restricted area.
The server-side processing method of the area-restricted service according to claim 1, wherein before the determining whether the user terminal is a service initiated in the restricted area, the method further includes: presetting the unit in a cluster user group Store restricted areas.
The server-side processing method of the area-restricted service according to claim 4, wherein when the restricted area is set in advance, the member setting area having a high authority in the group is not limited.
The server-side processing method of the area-restricted service according to claim 1, wherein after the user terminal in the group in the notification-restricted area joins the service, the method further includes: receiving the location information reported by the user in real time, when When the user's location information changes, it will advance in time. The joining of user services or the release of user services.
The server-side processing method for the area-restricted service according to any one of claims 1 to 6, wherein the method further comprises: MCPTT server when a plurality of key tasks are keyed to the cluster group managed by the MCPTT server. Receive location information reported by its home users, and manage regional restricted services of their respective cluster groups.
A method for processing a user terminal of a limited area service includes:

Reporting user identifier and user location information to the cluster user server, where the user location information is ECGI;

The service is added according to the service access notification sent by the cluster user server.
The user terminal processing method of the area limited service according to claim 8, wherein the process of reporting the user identifier and the user location information to the cluster user server comprises:

Sending user identification and user location information to the cluster user server actively when logging in or exiting the corresponding group communication system pusher GCSE application or location changes; or

Periodically report user ID and user location information to the cluster user server; or

When the cluster user server actively queries the location information of each group member in the group and determines that the group belongs to the group according to the group identifier, the user identifier and the user location information are returned to the cluster user server.
A cluster user server, including an MCPTT server and a group management server;

The MCPTT server includes:

The location information obtaining unit is configured to receive user identification information and user location information of the cluster user terminal, where the user location information is ECGI;

The regional service management unit is configured to process the initiation of the service, the establishment of the service context, the joining of the user service, and the release of the user service;

The integrated interworking gateway unit is configured to complete control plane message transmission between multiple MCPTT servers;

The group management server includes:

a restricted area setting unit configured to preset and store a restricted area in units of a cluster user group;

The location information analyzing unit is configured to determine, according to the preset restricted area and the location information provided by the cluster user terminal, the relationship between the location information of the user and the restricted area, in units of the cluster user group;

The group management unit is set to set the users who are contracted in the cluster user group in units of cluster user groups.
A cluster user terminal, comprising:

The location information reporting unit is configured to report the user identifier and the user location information to the cluster user server, where the user location information is ECGI;

The regional service processing unit is configured to initiate, leave, end, and push-to-talk preemption of the MPCTT service, and process the service access notification, the service establishment notification, and the service interruption notification delivered by the service control message from the cluster user server.
A storage medium, wherein the storage medium comprises a stored program, wherein the program is executed to perform the method of any one of claims 1 to 7.
A storage medium, wherein the storage medium comprises a stored program, wherein the program is executed to perform the method of claim 8 or 9.