CN106792538A

CN106792538A - Information uploading method, terminal pattern changing method and digital communication system

Info

Publication number: CN106792538A
Application number: CN201611245756.8A
Authority: CN
Inventors: 郭振宁; 刘宏波; 赵飞; 朱国晗
Original assignee: HARBIN HAINENGDA TECHNOLOGY Co Ltd
Current assignee: HARBIN HAINENGDA TECHNOLOGY Co Ltd
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2017-05-31

Abstract

This application provides a kind of information uploading method, terminal pattern changing method and digital communication system；Wherein, information uploading method includes：In the case where location equipment is opened, terminal address is obtained using location equipment；Using the corresponding characteristic parameter in information reporting region for prestoring, judge whether the terminal address is reported in region in described information；Wherein, it is the region comprising the corresponding default region of object and with regular shape that described information reports region；If the terminal address is reported in region in described information, reporting terminal information.The application replaces the corresponding address realm data of object using the characteristic parameter of the information reporting region comprising the corresponding default region of object and with regular shape.Because the data volume of characteristic parameter is far smaller than the data volume of address realm data.Therefore, the application can carry out pattern switching in the case where terminal use is not influenceed to terminal.

Description

Information reporting method, terminal mode switching method and digital communication system

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information reporting method, a terminal mode switching method, and a digital communication system.

Background

In some application scenarios in a digital communication system, a terminal is required to upload terminal information after entering a target object. For example, in the field of military, after a person enters a building with a terminal, the terminal can upload the position of the terminal in real time in order to facilitate the knowledge of the position of the person. For another example, in the mobile communication field, after the terminal enters the cell handover area of the base station, the terminal position and other information may be uploaded to perform cell handover on the terminal.

The current execution mode of uploading terminal information by a terminal is as follows: the server determines address range data of the target object and sends the address range data to the terminal, and the terminal stores the address range data. Then, the terminal compares the address of the terminal with the address range data, if the terminal judges that the terminal is in the address range, the terminal enters a target object, and then the terminal information can be uploaded.

However, as the object becomes more complex (irregular polygon), more address range data is required to represent the object for clear representation, which results in larger data size of the address range data, and further results in larger memory space of the terminal occupied by the address range data.

For terminals with small memory space, it is not possible to store address range data. Even if the terminal can store the address range data, in the process that the terminal matches the terminal address of the terminal with the address range data, a lot of CPU resources of the terminal are occupied, and other functions of the terminal are affected.

Therefore, a new information reporting scheme is needed to enable the terminal to report the terminal information without affecting the use of the terminal.

Disclosure of Invention

The application provides an information reporting method, a terminal mode switching method and a digital communication system, and the mode switching can be carried out on the terminal under the condition that the use of the terminal is not influenced.

In order to achieve the above object, the present application provides the following technical means:

a digital communication system, comprising:

the dispatching desk server is used for calculating an information reporting region which comprises a preset region corresponding to the target object and has a regular shape, determining a characteristic parameter corresponding to the information reporting region, and sending the characteristic parameter;

the central control server is used for receiving the characteristic parameters sent by the dispatching desk server and sending the characteristic parameters to a target base station covering the preset region;

the target base station is used for broadcasting the characteristic parameters;

and the terminal is used for receiving and storing the characteristic parameters broadcasted by the target base station, and is also used for acquiring a terminal address by using the positioning equipment under the condition of starting the positioning equipment, and reporting the terminal information to a central control server through the target base station if the terminal address is in an information reporting region corresponding to the characteristic parameters.

The central control server is further configured to receive the terminal information, where the terminal information at least includes a terminal address; judging whether the address range data corresponding to the target object stored in advance contains the terminal address or not; and if the address range data corresponding to the target object contains the terminal address, determining that the terminal enters the target object.

A digital communication system, comprising:

the server is used for calculating an information reporting region which comprises a preset region corresponding to the target object and has a regular shape, determining a characteristic parameter corresponding to the information reporting region, and sending the characteristic parameter;

and the terminal is used for receiving and storing the characteristic parameters, acquiring a terminal address by using the positioning equipment under the condition of starting the positioning equipment, and reporting the terminal information if the terminal address is in the information reporting region corresponding to the characteristic parameters.

The server is further configured to receive the terminal information, where the terminal information at least includes a terminal address; judging whether the address range data corresponding to the target object stored in advance contains the terminal address or not; and if the address range data corresponding to the target object contains the terminal address, determining that the terminal enters the target object.

An information reporting method comprises the following steps:

acquiring a terminal address by using the positioning equipment under the condition of starting the positioning equipment;

judging whether the terminal address is in the information reporting region or not by utilizing the characteristic parameters corresponding to the pre-stored information reporting region; the information reporting region is a region which comprises a preset region corresponding to the target object and has a regular shape;

and if the terminal address is in the information reporting region, reporting the terminal information.

Preferably, in the process of reporting the terminal information, the method further includes:

acquiring the terminal address again by using the positioning equipment;

judging whether the terminal address is in the information reporting region or not by utilizing the characteristic parameters corresponding to the pre-stored information reporting region;

and if the terminal address is no longer in the information reporting region, closing the positioning equipment and no longer reporting the terminal information.

An information reporting method comprises the following steps:

calculating an information reporting region which comprises a preset region corresponding to the target object and has a regular shape;

determining characteristic parameters corresponding to the information reporting region;

and sending the characteristic parameters so that the terminal can receive and store the characteristic parameters.

Preferably, the calculating an address range of an information reporting region including a preset region and having a regular shape includes:

selecting a regular shape of the information reporting region;

determining a minimum shape region including a preset region corresponding to the target object by enlarging, reducing or moving the shape region corresponding to the regular shape;

and determining the minimum shape region as the information reporting region.

Preferably, the determining the characteristic parameter corresponding to the information reporting region includes:

determining the circle center coordinate and the radius of the information reporting region as the characteristic parameters under the condition that the regular shape of the information reporting region is circular; or,

determining each vertex coordinate of the information reporting region as the characteristic parameter under the condition that the regular shape of the information reporting region is a polygon; or,

and under the condition that the regular shape of the information reporting region is cylindrical, determining the circle center coordinate, the radius and the height of the information reporting region as the characteristic parameters.

Preferably, the terminal information at least includes a terminal address, and the method further includes:

judging whether the address range data corresponding to the target object contains a terminal address or not under the condition that the address range data corresponding to the target object is stored in advance;

and if the address range data corresponding to the target object contains the terminal address, determining that the terminal enters the target object.

A digital communication system, comprising:

the terminal is used for periodically reporting the terminal information to the target base station under the condition that the terminal address is determined to be in the information reporting area containing the application mode switching area; the system is also used for receiving an application mode switching instruction containing a target application mode and changing the original application mode into the target application mode;

the target base station is used for sending the terminal information to a central control server, wherein the terminal information comprises a terminal address of a terminal; the terminal is also used for receiving an application mode switching instruction containing a target application mode sent by the central control server and sending the application mode switching instruction containing the target application mode to the terminal;

the central control server is used for receiving the terminal information, and if the terminal information meets a first switching condition, sending an application mode switching instruction containing the target application mode so as to control the terminal to change the original application mode into the target application mode; wherein the first switching condition comprises: the terminal address is in the application mode switching domain.

The central control server is also used for receiving the terminal information again; the terminal information at least comprises a terminal address of the terminal; if the terminal information meets a second switching condition, sending an application mode switching instruction containing the original application mode to the target base station; wherein the second switching condition comprises: the terminal address is no longer in the application mode switching region;

the target base station is also used for receiving an application mode switching instruction containing an original application mode sent by the central control server and sending the application mode switching instruction containing the original application mode to the terminal;

the terminal is further used for receiving an application mode switching instruction containing an original application mode and changing a target application mode into the original application mode.

The terminal is also used for repeatedly utilizing the positioning equipment to obtain the terminal address in the process of periodically reporting the terminal information; and under the condition that the terminal address is determined to be no longer in the information reporting region containing the application mode switching region, closing the positioning equipment and no longer reporting the terminal information to the target base station.

Preferably, the method further comprises the following steps:

the dispatching desk server is used for sending a switching region canceling instruction corresponding to the application mode switching region to the central control server;

the central control server is further configured to receive a handover region cancel instruction corresponding to the application mode handover region, and send the handover region cancel instruction to the target base station;

the target base station is further configured to broadcast the handover region cancel instruction;

the terminal is further configured to receive the handover region cancel instruction, and delete a characteristic parameter in a storage space corresponding to an information reporting region including the application mode handover region; and if the terminal is in the target application mode, changing the target application mode into the original application mode.

A digital communication system, comprising:

the central control server is used for receiving the terminal information, judging whether the terminal information meets a switching condition or not, and sending a switching condition result to the dispatching desk server, wherein the switching condition comprises: the terminal address is in the application mode switching region; the base station is also used for receiving a judgment result sent by the dispatching station server, and if the judgment result indicates that the switching is confirmed to be the target application mode, sending an application mode switching instruction containing the target application mode to the target base station;

and the dispatching desk server is used for receiving the switching condition result sent by the central control server, judging by combining with an actual scene, obtaining a judgment result and sending the judgment result to the central control server.

The central control server is also used for receiving the terminal information again; the terminal information at least comprises a terminal address of the terminal; judging whether the terminal address is still in the application mode switching region or not, obtaining a condition result, and sending the condition result to a dispatching desk server; the base station is also used for receiving a judgment result sent by the dispatching desk server, and if the judgment result indicates that the original application mode is confirmed to be switched, sending an application mode switching instruction containing the original application mode to the target base station;

the dispatching desk server is used for receiving the condition result sent by the central control server, judging by combining with an actual scene, obtaining a judgment result and sending the judgment result to the central control server;

the target base station is further configured to receive an application mode switching instruction containing an original application mode sent by the central control server, and send the application mode switching instruction containing the original application mode to the terminal;

An application mode switching method, comprising:

receiving terminal information under the condition that the terminal is determined to be in an information reporting region containing an application mode switching region and periodically reports the terminal information; wherein the terminal information at least comprises a terminal address;

if the terminal information meets the switching condition, sending an application mode switching instruction containing the target application mode to the terminal so as to control the terminal to change the original application mode into the target application mode; wherein the switching conditions include: the terminal address is in the application mode switching domain.

Preferably, the handover condition further includes:

the terminal supports the target application mode; and/or the presence of a gas in the gas,

and the original application mode in the terminal information is not the target application mode corresponding to the application mode switching region.

A working mode switching method comprises the following steps:

receiving terminal information under the condition that a terminal determines that a terminal address is in an information reporting region containing a working mode switching region and reports the terminal information; wherein the terminal information at least comprises a terminal identification;

determining target mode data corresponding to the terminal identification based on pre-stored terminal mode data;

and if the target mode data indicate that the terminal supports a preset follow-up mode, sending a working mode switching instruction containing the follow-up mode to control the terminal to be switched from the cluster mode to the follow-up mode.

The transmitting frequency of the terminal in the follow-up mode is consistent with the transmitting frequency and the receiving frequency of the terminal in the direct-through mode, and is inconsistent with the transmitting frequency of the terminal in the trunking mode.

Preferably, before the sending of the operation mode switching instruction including the follow-up mode, the method further includes:

the target mode data represent the result that the terminal supports the follow-up mode and the terminal information and are sent to a dispatching desk server, and the dispatching desk server judges again by combining with an actual scene and obtains a judgment result;

receiving a judgment result sent by a dispatching desk server;

and if the judgment result indicates that the switching to the follow-up mode is confirmed, sending a working mode switching instruction containing the follow-up mode.

Preferably, after the terminal is switched from the trunking mode to the follow-up mode, the method further includes:

detecting the field intensity of a downlink signal in a follow-up mode; if the field intensity of the downlink signal is smaller than the preset working field intensity, controlling the terminal to enter a direct-through mode;

detecting the field intensity of a downlink signal in a direct-through mode; and if the field intensity of the downlink signal is greater than the preset working field intensity, controlling the terminal to enter a follow-up mode.

Preferably, the method further comprises the following steps:

and when the terminal determines that the terminal address is no longer in the information reporting region containing the working mode switching region, sending a working mode switching instruction containing the cluster mode to control the terminal to be switched into the cluster mode.

Preferably, before the sending the operating mode switching instruction including the cluster mode, the method further includes:

sending a result of reporting the terminal leaving the information containing the working mode switching region to the region and the terminal information to a dispatching desk server, and judging again by the dispatching desk server in combination with the actual scene to obtain a judgment result;

receiving a judgment result sent by a dispatching desk server;

and if the judgment result indicates that the cluster mode is confirmed to be switched, sending a working mode switching instruction containing the cluster mode.

Preferably, the method further comprises the following steps:

receiving a switching region canceling instruction which is sent by a dispatching desk server and corresponds to the working mode switching region;

and sending the switching region canceling instruction, deleting the characteristic parameters corresponding to the information reporting region containing the working mode switching region in the storage space by using the control terminal, and if the terminal is in the follow-up mode, switching the control terminal into the trunking mode.

Preferably, the operation mode switching instruction includes: a traffic channel frequency and a channel frequency to be detected; then, the control terminal is switched from the trunking mode to the follow-up mode, including:

the control terminal skips to the service channel frequency;

if the service channel frequency has a downlink voice signal, receiving and playing the downlink voice signal;

if the service channel frequency does not have the downlink voice signal, scanning the channel frequency to be detected according to a scanning period; wherein, the scanning period is the duration of one voice frame;

and if the downlink voice signal is scanned on the channel frequency to be detected, receiving and playing the downlink voice signal, and returning to the service channel frequency to receive the downlink voice signal after the downlink voice signal is played.

The following advantages can be seen from the above description:

in order to reduce the burden of a terminal, an information reporting region having a regular shape and including a predetermined region corresponding to a target is set without storing address range data corresponding to the target in the terminal. Therefore, the information reporting region can replace the preset region corresponding to the target object. When the terminal enters the information reporting region, the terminal is possible to enter the target object, and when the terminal does not enter the information reporting region, the terminal is impossible to enter the target object.

Because the information reporting region is in a regular shape, the information reporting region can be represented by characteristic parameters in the regular shape. The characteristic parameter is only one or a few parameter values, and the data volume is very small. Therefore, the terminal only needs to store the characteristic parameters corresponding to the information reporting region, and does not need to store the address range data corresponding to the target object, so that the burden of the terminal can be greatly reduced.

Under the condition of storing the characteristic parameters corresponding to the information reporting region, when the terminal judges that the terminal address enters the information reporting region corresponding to the characteristic parameters, the terminal information begins to be reported; when the terminal judges that the terminal address does not enter the information reporting region, the terminal information does not need to be reported.

The method and the device adopt the characteristic parameters of the information reporting region which comprises the preset region corresponding to the target object and has the regular shape to replace the address range data corresponding to the target object. Since the data size of the characteristic parameter is much smaller than the data size of the address range data. Therefore, the mode switching can be carried out on the terminal under the condition that the use of the terminal is not influenced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a digital communication system disclosed in an embodiment of the present application;

fig. 2 is a flowchart of an information reporting method disclosed in an embodiment of the present application;

fig. 3 is a schematic diagram of an information reporting region disclosed in the embodiment of the present application;

fig. 4 is a schematic diagram of another information reporting region disclosed in the embodiment of the present application;

fig. 5 is a flowchart of another information reporting method disclosed in the embodiment of the present application;

fig. 6a-6b are schematic structural diagrams and flowcharts of another digital communication system disclosed in the embodiments of the present application;

fig. 7 is a flowchart of an application mode switching method disclosed in an embodiment of the present application;

fig. 8 is a flowchart of another application mode switching method disclosed in the embodiment of the present application;

fig. 9 is a flowchart of another application mode switching method disclosed in the embodiment of the present application;

FIG. 10 is a schematic view of a scenario disclosed in an embodiment of the present application;

FIG. 11 is a schematic illustration of a follow-up mode disclosed in an embodiment of the present application;

fig. 12 is a flowchart of a method for switching operating modes according to an embodiment of the present application;

fig. 13 is a schematic view of a scene disclosed in an embodiment of the present application.

Detailed Description

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 only a part of the embodiments of the present application, and not all of the 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.

For convenience of subsequent description, the region corresponding to the target object is referred to as a preset region. In order to relieve the terminal pressure, the address range corresponding to the preset region is not stored on the terminal. It can be understood that, after deleting the address range corresponding to the preset region on the terminal, all terminals will send the terminal address.

This may cause the server to aggregate a large number of terminal addresses of the terminals, and may cause the server to crash because the server processes a large number of useless terminal addresses and ignores the terminal addresses of the terminals that really need to be processed. In the research process, the applicant finds that all the terminals do not enter the preset region, so that all the terminals are not required to send terminal addresses to the server.

Therefore, in order to reduce the load of the server and improve the processing efficiency of the server, and the address range of the complex terrain is not stored in the terminal any more, the application sets an information reporting region with a regular shape and containing a preset region representing a target object. The information reporting region has a regular shape, so that the information reporting region can be represented by characteristic parameters.

When the terminal enters the information reporting region, the terminal is possible to enter a target object, and the terminal can send a terminal address to the server at the moment; and when the terminal does not enter the information reporting region, the terminal cannot enter the target object. The terminal does not need to send the terminal address to the server.

Therefore, the terminal only needs to store the characteristic parameters of the information reporting region, and does not need to store the address range corresponding to the preset region.

Before describing the detailed implementation of the present application, in order for those skilled in the art to better understand the application scenario of the present application, the digital communication system provided in the present application will be described first.

As shown in fig. 1, the present application provides a first embodiment of a digital communication system, which specifically includes a server 110 and a terminal 120.

The server 110 is configured to calculate an information reporting region that includes a preset region corresponding to a target object and has a regular shape, determine a characteristic parameter corresponding to the information reporting region, and send the characteristic parameter.

And the terminal 120 is configured to receive and store the characteristic parameter, and further configured to acquire a terminal address by using the positioning device when the positioning device is turned on, and report terminal information to the user if the terminal address is in an information reporting area corresponding to the characteristic parameter.

The following describes in detail the execution processes of the server 110 and the terminal 120, respectively.

First, the execution process of the server is explained:

referring to fig. 2, the present application provides an information reporting method, which is applied to a server. The method comprises the following steps:

step S201: and calculating an information reporting region which comprises a preset region corresponding to the target object and has a regular shape.

The operation user can preset a target object; the server 110 may determine the preset region corresponding to the target object on a map according to the actual application scene of the target object, or determine the preset region in other manners.

Then, the server 110 determines an information reporting region including a preset region. The following describes a specific process of the server determining the information reporting region.

Step S211: and selecting a regular shape of the information reporting region.

The server 110 stores one or more regular shapes, such as circles, polygons, cylinders, cubes, etc., in advance, which are not listed here. The common feature of these regular shapes is that they can all be represented by characteristic parameters, not necessarily by all edges. For example, a circle may be represented by a circle center and a radius, but need not be represented by all the location points on the circle.

Step S212: and determining the minimum shape region containing the preset region by expanding, shrinking or moving the shape region corresponding to the regular shape.

The server 110 determines a shape region corresponding to the regular shape, and then determines a minimum shape region including a predetermined region on the map by enlarging the regular shape region, reducing the regular shape region, or moving the regular shape region.

Assuming that the circle is selected in step S211, see fig. 3, it is a schematic diagram of a minimum-shaped zone including the preset zones.

Step S213: and determining the minimum shape region as the information reporting region.

The server 110 determines the minimum shape region calculated in step S212 as an information reporting region. Fig. 3 gives a schematic view of a minimum-shaped zone. It is understood that the embodiment shown in fig. 3 is only a preferred implementation of the information reporting region.

Of course, the information reporting region may also be a region of other shapes. Under the condition that the shape region is still the circular region, referring to fig. 4, the present application also provides other implementation manners of the information reporting region. As can be seen from fig. 4, the information reporting region may also be another shape region, which includes the preset region and is larger than the minimum shape region shown in fig. 3. Although not a minimum-shaped region, the other implementation manners of the information reporting region provided in fig. 4 may still achieve the object of the present application.

The difference between the information reporting areas shown in fig. 3 and fig. 4 is that the implementation manner provided in fig. 3 can minimize unnecessary terminals from sending terminal addresses to the server; in the embodiment shown in fig. 4, the number of terminals of the terminal address transmitted to the server increases. Within the acceptable range of the server, the information reporting region may be allowed not to be the minimum-shaped region.

Then, the process returns to step S202: and determining the characteristic parameters corresponding to the information reporting region.

After the information reporting region including the preset region corresponding to the target object is determined, the server may determine the characteristic parameter of the information reporting region. The characteristic parameter is attribute information of the information reporting region, and the information reporting region can be uniquely determined if the characteristic parameter is determined.

Since the characteristic parameters corresponding to different shapes of the information reporting region are different, the following describes the manner of determining the characteristic parameters in detail by using several information reporting regions with different regular shapes:

(1) circular shape

Since the circle can be uniquely represented by the center and the radius. Therefore, when the regular shape of the information reporting region is a circle, the center coordinates and the radius of the information reporting region are determined as the characteristic parameters.

(2) A polygon.

There are many types of polygons, such as triangles, rectangles, diamonds, hexagons, etc., which are not listed here. The polygonal region is characterized by comprising a plurality of vertexes and straight lines, and the polygonal region can be determined after each vertex of the polygonal region is determined. Therefore, when the regular shape of the information reporting region is a polygon, the coordinates of each vertex of the information reporting region are determined as the characteristic parameters.

For example, taking the regular shape as a triangle as an example, a triangle region can be uniquely represented by three vertices of the triangle.

(3) A cylinder.

A cylinder can be uniquely represented by a center, a radius and a length. Therefore, when the regular shape of the information reporting region is a cylindrical shape, the center coordinates, the radius and the height of the information reporting region are determined as the characteristic parameters.

Among the plurality of regular shapes, a circular shape is preferred as the preferred regular shape. Of course, the information reporting region may also be a region of other shapes, which is not listed here.

Step S203: and sending the characteristic parameters.

After determining the characteristic parameters of the information reporting region including the preset region, the server 110 may send the characteristic parameters to the terminal 120, so that the terminal 120 stores the characteristic parameters, and may execute a subsequent information reporting method.

The following describes the implementation procedure of the terminal. Referring to fig. 5, the method specifically includes the following steps:

step S501: and acquiring the address of the terminal by utilizing the positioning equipment under the condition of starting the positioning equipment.

The terminal stores the characteristic parameters after receiving the characteristic parameters sent by the server. Then, the terminal can start the positioning device, position itself by using the positioning device and obtain its own terminal address.

Step S502: judging whether the terminal address is in the information reporting region or not by utilizing the characteristic parameters corresponding to the pre-stored information reporting region; the information reporting region is a region which comprises a preset region and has a regular shape. If yes, the process proceeds to step S503, otherwise, the process proceeds to step S505.

In order to verify whether the terminal is in the information reporting region, the terminal firstly generates the information reporting region based on the characteristic parameters. For example, taking the characteristic parameter as the center coordinate and the radius as an example, it can be determined that all the areas within the radius coverage of the center coordinate are information reporting areas.

After the information reporting region is determined, whether the terminal address is in the information reporting region or not is judged. If yes, the process proceeds to step S503, otherwise, the process proceeds to step S504.

Step S503: and if the terminal address is in the information reporting region, reporting the terminal information.

If the terminal address of the terminal is in the information reporting region, the terminal is indicated to enter the information reporting region, and the terminal may further enter a preset region. Therefore, the terminal can report the terminal address.

Step S504: and if the terminal address is not in the information reporting region, not reporting the terminal address.

If the terminal address is not in the information reporting region, the terminal does not enter the information reporting region, and the terminal cannot enter the preset region temporarily, so that the terminal does not need to report the terminal address.

It can be understood that, along with the movement of the terminal, the relationship between the terminal address of the terminal and the information reporting region may change. Thus, the process shown in fig. 5 may be repeatedly performed.

If the terminal which enters the information reporting region before is not in the information reporting region any more, the terminal is out of the information reporting region. In this case, the terminal may close the positioning device and no longer report the terminal address.

And if the terminal which does not enter the information reporting region before is in the information reporting region, indicating that the terminal enters the information reporting region. In this case, the terminal reports the terminal information.

In the present application, address range data corresponding to the target object is no longer stored in the terminal, so in an actual situation, if there is a need to accurately know whether the terminal enters the target object, the address range data corresponding to the target object may be stored in advance in the server 100.

Compared with the method for storing the address range data corresponding to the target object on the terminal, the method has the advantages that the storage space of the terminal can be saved, the frequency of updating the address range data corresponding to the target object can be improved, and the address range data on the server can be updated independently and conveniently compared with the address range data on the terminal.

The following describes the implementation of the server in detail:

the server 100 is further configured to receive the terminal information, where the terminal information at least includes a terminal address; judging whether the address range data corresponding to the target object stored in advance contains the terminal address or not; and if the address range data corresponding to the target object contains the terminal address, determining that the terminal enters the target object.

In order to reduce the burden of the terminal, the address range data of the target object is not stored on the terminal, but the characteristic parameters of the information reporting region are stored, although the information reporting region contains the preset region corresponding to the target object. However, the information reporting region is not equal to the preset region after all. (for example, referring to fig. 3, a circle is an information reporting region, and an irregular polygon is a preset region corresponding to the target object). If in actual conditions, the process can be realized on the server when the requirement that whether the terminal enters the target object is accurately obtained.

That is, address range data of the object is stored in the server 100 in advance, and then after the terminal information is acquired (the terminal information includes the terminal address), the terminal address is compared with the address range data. If the address range data contains the terminal address after comparison, the terminal enters the target object; if the address range data does not contain the terminal address after comparison, the terminal does not enter the target object.

Practical application embodiments of a digital communication system are provided below.

As shown in fig. 6a, the present application provides a second embodiment of a digital communication system, which specifically includes: a dispatch station server 100, a central control server 200 connected to the dispatch station server 100, each base station 300 connected to the central control server 200, and a terminal 400 within the coverage of each base station.

Since the execution process of each base station and each terminal are consistent, one of the base stations (hereinafter referred to as a target base station) and one of the terminals within the coverage area of the base station (hereinafter referred to as a terminal) are taken as examples.

Referring to fig. 6b, various parts of the digital communication system are described in detail.

First, the dispatcher station server 100 is described.

The dispatching desk server 100 is configured to calculate an information reporting region that includes a preset region corresponding to the target object and has a regular shape, determine a characteristic parameter corresponding to the information reporting region, and send the characteristic parameter.

The implementation process of the dispatch station server 100 can be referred to in the implementation process of fig. 2, and is not described herein again. The dispatcher station server 100 may send the characteristic parameter to the central control server 200 after determining the characteristic parameter of the information reporting region including the preset region.

Next, the center server 200 is introduced.

And the central control server 200 is configured to receive the characteristic parameter sent by the dispatching desk server 100, and send the characteristic parameter to the target base station covering the preset region.

The central server 200 is a server that manages all the base stations. The method and the device hope to control the terminal entering the preset region to report the terminal information. Therefore, the central control server 200 may determine a target base station corresponding to the predetermined region, where the target base station is a base station covering the predetermined region. When the terminal enters the coverage of the target base station, the terminal may enter a preset region.

Again, the target base station 300 is introduced.

And the target base station 300 is configured to broadcast the characteristic parameters after receiving the characteristic parameters sent by the central control server 200.

The target base station 300 may send the characteristic parameters to the terminals within its coverage area, so that the terminals currently within the coverage area of the target base station and the terminals subsequently entering the coverage area of the target base station may receive the characteristic parameters.

Finally, the terminal 400 within the coverage of the target base station is introduced.

And the terminal 400 in the coverage area of the target base station is used for receiving and storing the characteristic parameters, and is also used for acquiring a terminal address by using the positioning equipment under the condition that the positioning equipment is started, and reporting the terminal information to the central control server through the target base station if the terminal address is in an information reporting area corresponding to the characteristic parameters.

The process performed by the terminal 400 can refer to the process shown in fig. 5, and is not described herein again.

In addition, the central control server 200 is further configured to receive the terminal information, where the terminal information at least includes a terminal address; judging whether the address range data corresponding to the target object stored in advance contains the terminal address or not; and if the address range data corresponding to the target object contains the terminal address, determining that the terminal enters the target object.

The terminal 400 transmits the terminal information to the target base station 300, and the target base station 300 transmits the terminal information to the central control server 200. The central control server stores address range data corresponding to the target object in advance. After the terminal information is acquired (the terminal information includes the terminal address), the terminal address is compared with the address range data.

If the address range data contains the terminal address after comparison, the terminal enters the target object; if the address range data does not contain the terminal address after comparison, the terminal does not enter the target object.

In the trunking communication system, the above information reporting method may be applied. The following is a detailed description:

the trunking communication system is a mobile communication system for group dispatching and commanding communication, and is mainly applied to the field of professional mobile communication. Under the trunking communication system, the terminal has multiple working modes: a cluster mode, a normal mode, and a pass-through mode; there are also different application modes in each operating mode: a public address mode, a silent mode and a listening mode. The terminal can only be in one application mode in one working mode at one time.

Under different scenes, after the terminal enters the target object, the working mode or the application mode can be switched. For example, taking the application mode of the terminal as an example, if there is a military operation in a building (target object), the manager of the dispatch desk server wants the terminals in the building to operate in the mute mode. In this case, the application mode of the terminal entering the building may be changed to the mute mode.

For another example, in a plant (target object) with poor signal, the manager of the dispatcher station server wants to operate all terminals in the plant in the direct mode so as to communicate with each other. In this case, the operation mode of the terminal entering the plant can be switched to the through mode.

That is, in the trunking communication system, the terminal has a need to switch application modes after entering a target object; of course, the terminal may have a need to switch the operation mode after entering the target object. In the context of the digital communication system shown in fig. 6a, the present application provides an application mode switching scheme, as well as a switching scheme of operating modes. Two handover schemes will be described in detail below.

The dispatcher station server 100 may set a target object, where a preset region corresponding to the target object is an application mode switching region, and for convenience of subsequent description, in an application mode switching scenario, the preset region corresponding to the target object is referred to as an application mode switching region in the subsequent description.

The server also sets a target application mode for the application mode switching region in advance. For example, the target application mode is set to the silent mode for one building. This indicates that: when the terminal enters the target object, the application mode needs to be switched. The terminal determines whether the terminal enters the information reporting region according to the method shown in fig. 5 in the system shown in fig. 6a, and the detailed process refers to the process shown in fig. 5, which is not described herein again.

And after the terminal determines to enter an information reporting region containing an application mode switching region, periodically reporting the terminal information. The frequency of reporting the terminal information periodically may be preset and limited again, for example, once every 3 seconds.

The terminal can register with the central control server after being started, and the central control server can acquire and store the application modes which can be supported by the terminal in the registration process, so that the application modes which can be supported by the terminal are stored in the central control server or a database server connected with the central control server.

As shown in fig. 7, the present application provides a digital communication system comprising:

a terminal 400 within the coverage of the target base station, configured to periodically report terminal information when determining that the terminal address is within an information reporting area including an application mode switching area; and the system is also used for receiving an application mode switching instruction containing a target application mode and changing the original application mode into the target application mode.

The target base station 300 is configured to send the terminal information to a central control server, where the terminal information includes a terminal address of a terminal; and the terminal is also used for receiving an application mode switching instruction containing a target application mode sent by the central control server and sending the application mode switching instruction containing the target application mode to the terminal.

The central control server 200 is configured to receive the terminal information, and if the terminal information meets a first switching condition, send an application mode switching instruction including the target application mode to control the terminal to change an original application mode to the target application mode; wherein the first switching condition comprises: the terminal address is in the application mode switching domain.

The following describes the digital communication system in detail:

the terminal 400 periodically reports the terminal information to the target base station 300, and the target base station 300 periodically receives the terminal information and transmits the terminal information to the central control server 200. The central control server 200 receives the terminal information, which includes the terminal address and may also include the original application mode of the terminal.

The terminal enters the information reporting region, which indicates that the terminal is likely to enter the application mode switching region. If the terminal enters the application mode switching region, the terminal can be controlled to be changed into a target application mode corresponding to the application mode switching region.

Therefore, the central control server 200 may determine whether the original application mode in the terminal information is the target application mode after receiving the terminal information, and if the original application mode is the target application mode, the subsequent process does not need to be executed. If the original application mode is not the target application mode, executing the step and the next step to switch the original application mode to the target application mode.

The central control server 200 may determine whether the original application mode is the target application mode, and if the central control server determines that the original application mode of the terminal is not the target application mode, it may continue to determine whether the terminal address enters an application mode switching region.

The central control server 200 stores address range data corresponding to the application mode switching region, and the central control server 200 compares the terminal address with the address range data. If the address range data contains the terminal address, the terminal is indicated to enter an application mode switching region. Otherwise, if the address range data does not contain the terminal address, it indicates that the terminal does not enter the application mode switching region.

If the terminal address does not enter the terminal mode switching region, the application mode switching is not needed for the time being.

If the terminal address enters the application mode switching region, the terminal needs to be switched to a target application mode corresponding to the application mode switching region. Typically, the terminal is in support of the target application mode. Therefore, the application mode switching instruction including the target application mode can be directly transmitted to the terminal.

After the terminal is powered on and registered with the base station, the central control server 200 or a database connected to the central control server has application modes that the terminal can support. In order to determine that the terminal can support the target application mode, the central control server 200 may determine whether the application mode supported by the terminal includes the target application mode after determining that the terminal address enters the application mode switching region.

If the target application mode is included, the terminal is indicated to support the target application mode, and therefore, an application mode switching instruction including the target application mode can be sent to the terminal. If the target application mode is not included, the terminal does not support the target application mode, and therefore the process of changing the terminal into the target application mode is abandoned.

After the terminal enters the information reporting region, the terminal periodically sends terminal information. Therefore, the central control server can periodically receive the terminal information and repeatedly execute the process until the terminal switches the original application mode to the target application mode.

Along with the movement of the terminal, the terminal may be out of the application mode switching region. After the terminal leaves the application mode switching region, the terminal can be restored to the original application mode. Referring to fig. 7, the process of restoring the original application mode will be described in detail.

The central control server 200 is further configured to receive the terminal information again; the terminal information at least comprises a terminal address of the terminal; if the terminal information meets a second switching condition, sending an application mode switching instruction containing the original application mode to the target base station; wherein the second switching condition comprises: the terminal address is no longer in the application mode switching region;

the target base station 300 is further configured to receive an application mode switching instruction including an original application mode sent by the central control server 200, and send the application mode switching instruction including the original application mode to the terminal.

The terminal 400 is configured to receive an application mode switching instruction including an original application mode, and change a target application mode to the original application mode.

The above process is explained in detail below:

after the terminal enters the application mode switching region and the central control server 200 receives the terminal information again, (the terminal information includes the terminal address), the central control server 200 may determine whether the current terminal address is still in the application mode switching region, and if the terminal address is still in the application mode switching region, the terminal address may be continuously maintained without executing other processing procedures.

And if the terminal address is no longer in the application mode switching region, indicating that the terminal is out of the application mode switching region. Therefore, the mode switching instruction containing the original application mode can be sent to the terminal, and the terminal can be controlled to be switched to the original application mode.

Referring to fig. 8, a digital communication system is described. Compared to the digital communication system shown in fig. 7, a dispatcher station server is added. The specific content comprises the following steps:

The central control server 200 is configured to receive the terminal information, determine whether the terminal information satisfies a switching condition, and send a switching condition result to the dispatching desk server, where the switching condition includes: the terminal address is in the application mode switching region; and the base station is also used for receiving a judgment result sent by the dispatching station server, and if the judgment result indicates that the switching to the target application mode is confirmed, sending an application mode switching instruction containing the target application mode to the target base station.

And the dispatching desk server 100 is configured to receive the switching condition result sent by the central control server, perform judgment in combination with an actual scene, obtain a judgment result, and send the judgment result to the central control server.

In some cases, the application mode switching is performed by the central control server 200 alone, which is somewhat inconvenient. Therefore, the present application adds a dispatcher station server 100. In the system shown in fig. 9, the central control server 200 no longer has the decision right, but compares with the switching condition using the terminal information, thereby obtaining the switching condition result. Then, the switching condition result is transmitted to the dispatcher station server 100.

The staff of the dispatching desk server 100 performs judgment according to the actual scene and obtains the judgment result, and then sends the judgment result to the central control server 200, and the central control server 200 sends the application mode switching instruction to the target base station.

The system shown in fig. 8 is superior in controllability of the control method and the system shown in fig. 7 is superior in convenience. In practical application, the method can be determined according to actual conditions.

Along with the movement of the terminal, the position of the terminal in the information reporting area is changed continuously. The central control server 200 is further configured to receive the terminal information again; the terminal information at least comprises a terminal address of the terminal; judging whether the terminal address is still in the application mode switching region or not, obtaining a condition result, and sending the condition result to a dispatching desk server; the base station is also used for receiving a judgment result sent by the dispatching desk server, and if the judgment result indicates that the original application mode is confirmed to be switched, sending an application mode switching instruction containing the original application mode to the target base station;

the dispatching desk server 100 is configured to receive a condition result sent by the central control server, perform judgment in combination with an actual scene, obtain a judgment result, and send the judgment result to the central control server;

the target base station 300 is further configured to receive an application mode switching instruction including an original application mode sent by the central control server, and send the application mode switching instruction including the original application mode to the terminal;

The process of switching the target application mode to the original application mode is similar to the process shown in fig. 8, and is not described herein again.

Referring to fig. 8, along with the movement of the terminal, after the terminal leaves the application mode switching region, the terminal may also leave the information reporting region. Therefore, the terminal 400 in the coverage area of the target base station is also configured to repeatedly use the positioning device to obtain the terminal address in the process of periodically reporting the terminal information; and under the condition that the terminal address is determined to be no longer in the information reporting region containing the application mode switching region, closing the positioning equipment and no longer reporting the terminal information to the target base station.

In the system shown in fig. 8, it is understood that, when the dispatcher station server 100 determines that the application mode switching with respect to the object is not necessary, the application mode switching region corresponding to the object may be cancelled.

Namely: if the application mode switching region is not needed according to actual conditions, the dispatching desk server can decide to delete the application mode switching region, namely, the application mode switching region does not exist any more, and the information reporting region containing the application mode switching region does not exist any more.

Referring to fig. 9, a process of deleting an application mode switching zone will be described below.

And a dispatcher server 100 configured to send a handover region cancel instruction corresponding to the application mode handover region to the central control server.

The central control server 200 is further configured to receive a handover region cancel instruction corresponding to the application mode handover region, and send the handover region cancel instruction to the target base station.

The target base station 300 is further configured to broadcast the handover region cancel instruction.

The terminal 400 is further configured to receive the handover region cancel instruction, and delete the feature parameter in the storage space corresponding to the information reporting region including the application mode handover region; and if the terminal is in the target application mode, changing the target application mode into the original application mode.

Referring to fig. 10, the following application scenario illustrates application mode switching:

(1) the mobile terminals MS1, MS2, MS3, MS4 are within the coverage of a base station communication system (BS) which issues random access invitation signaling C _ ALOHA under a control channel. Any mobile terminal in idle state can make random access request according to the random access information carried in the C _ ALOHA signaling.

(2) After the mobile terminals MS1, MS2, MS3, and MS4 are powered on, they can randomly search according to the channel information pre-written in the interior or according to the preferred registration channel pre-written in the interior, and after detecting the control channel C _ ALOHA signaling, they send the random access message REG _ REQ to the BS to request registration. The REG _ REQ message carries application mode information that can be supported by the mobile terminal. And after the BS verifies the validity, replying an acknowledgement message REG _ ACK to complete the registration network access service of the mobile terminals MS1, MS2, MS3 and MS 4.

(3) A certain complex terrain region (L shape) is selected as an application mode switching region by the dispatching desk server, and the dispatching desk server automatically calculates a minimum circular region surrounding the application mode switching region as an information reporting region.

And the longitude, latitude (X, Y) and radius of the center of the information reporting region are sent to MS1, MS2, MS3 and MS4 through BS in the form of BROADCAST message PERIOD _ REPORT _ BROADCAST _ MSG.

(4) After receiving the PERIOD _ REPORT _ BROADCAST _ MSG BROADCAST message, MS1, MS2, MS3, and MS4 analyze the latitude, longitude (X, Y), and radius R of the center of a reported region, store them in the local memory, and monitor whether the mobile terminal has entered the reported region in real time through a position positioning device such as a GPS.

(5) When the MS3 and the MS4 enter the information reporting region, a message PRESENT _ APP _ MODE _ MSG is first sent to the BS on the control channel, and the currently used application MODEs (both of them are the public address MODE) are reported.

Then, the MS3 and MS4 start a PERIOD to REPORT their current location information to the BS, which may be specified by the BS, for example, reporting once in 3 seconds. The BS uploads the received location information of MS3 and MS4 to the central control server.

(6) The central control server receives whether the position information of the MS3 and the MS4 enters a set application mode switching region (L-shaped region), finds that the current position of the MS3 is in the application mode switching region, and sends the information about the MS3 to the dispatcher station server if the mobile terminal is inquired through the database that the application mode switching is supported.

(7) The control personnel of the dispatching desk server knows that the MS3 enters an application mode switching region on the interface of the dispatching desk, and determines that the mobile terminal MS3 needs to be switched to a mute mode according to the actual situation. The dispatching desk server sends the application MODE switching command to the BS through the central control server, and the BS sends an application MODE switching control signaling APP _ MODE _ SWITCH _ MSG to the MS 3.

After receiving the signaling, the MS3 switches the application MODE to the mute MODE, and sends an acknowledgment feedback message APP _ MODE _ SWITCH _ ACK _ MSG to the BS.

(8) When the MS3 leaves the application mode switching region, the central control server informs the dispatching desk server of the leaving information of the MS3, and a control person of the dispatching desk server needs to switch the application mode of the MS3 to the public address mode according to actual conditions.

The dispatcher station server sends the application MODE switching command to the BS, and the BS sends an application MODE switching control signaling APP _ MODE _ SWITCH _ MSG to the MS 3. The MS3, upon receiving the signaling, switches the application mode to the public address mode. Then, an acknowledgement feedback message APP _ MODE _ SWITCH _ ACK _ MSG is sent to the BS.

(9) When the MS3 leaves the information reporting region, the position information of the MS3 can not be reported to the BS periodically.

(10) The control personnel of the dispatcher station server operates and CANCELs the application mode switching region, and then sends a message for canceling the application mode switching region to the central control server, the central control server sends the message to the BS, and the BS receives and sends a BROADCAST message CANCEL _ REPORT _ BROADCAST _ MSG to all terminals in the coverage area. After all the mobile terminals receive the information, the information reported to the region information stored in the memory is deleted, and then the position of the mobile terminals can not be monitored in real time by using the position positioning equipment.

Before introducing the scheme of working mode switching, firstly, introducing the working mode of the terminal, wherein the existing working mode is as follows: cluster mode, normal mode, and pass-through mode. The above three operating modes differ as follows:

(1) cluster mode: in the point-to-multipoint communication mode, the reception and transmission of pilot frequency require base station control.

I.e. any user in the communication system wants to talk to another user, the call can be made by means of the central console and using the clear channel communication link. Under normal conditions, most terminals work in the cluster mode.

(2) The conventional mode is as follows: in the point-to-multipoint communication mode, the receiving and transmitting of pilot frequency need to be transferred by a transfer station, namely, a simple voice transferring function.

(3) A through mode: the point-to-point communication mode has the same receiving and transmitting frequency, and a base station or a middle-turn station is not needed, namely, the terminal is in a direct communication mode with the terminal. In a poor signal position, the terminal can switch to the pass-through mode.

At present, mobile terminals all use independent working modes, that is, only mobile terminals with the same working mode can communicate with each other, and different working modes cannot communicate with each other. This limits communication prior to the different modes.

However, under certain specific scenarios and requirements, terminals with different operating modes have a need to communicate with each other. For this purpose, the present application also proposes a completely new operating mode, i.e. an operating mode other than trunked mode, regular mode, direct mode. This application will name it as follow-up mode.

The terminal in the follow-up mode can communicate with the terminal in the trunking mode and can also communicate with the terminal in the direct mode. However, at the same time, the slave mode terminal can only communicate with the terminal in one of the trunked mode and the direct mode.

The working principle of the follow-up mode of operation is described below so that the skilled person will know the follow-up mode in detail.

Referring to fig. 11, in the trunked mode of operation, the terminal MSC receives a downlink signal from the base station at frequency F3 and transmits an uplink signal to the base station at frequency F4. In the follow-up mode, the terminal MSB receives not only the downlink signal of the base station at frequency F1 but also the uplink signal to the base station at frequency F2, and at the same time receives and transmits the uplink and downlink signals of the mobile terminal MSA in the pass-through mode of operation at frequency F2.

It should be noted that the follow-up operation mode of the terminal can only be applied to the traffic channel; the transmitting frequency of the mobile terminal in the follow-up mode must be consistent with the transmitting and receiving frequency of the mobile terminal in the direct-through mode, and is different from the transmitting frequency of the mobile terminal in other trunking modes, so that mutual interference cannot occur.

The following describes a specific workflow of the follow-up mode:

after the terminal is started, the terminal firstly operates in a cluster mode, and after the terminal registers network access on a control channel, a system dispatches if necessary, and sends a control signaling through a base station to enable the terminal to enter a follow-up mode to work. The control signaling is accompanied with the frequency of the traffic channel (corresponding to the operating frequency of the base station) to be jumped by the mobile terminal and the frequency of the channel (corresponding to the direct operating frequency) to be monitored by the mobile terminal.

After the terminal jumps to the service channel, if the cluster downlink service channel has a downlink voice signal, receiving and playing; if no downlink voice signal exists, scanning and searching are periodically carried out on the direct frequency at fixed time, if the downlink voice signal under the direct frequency is detected, receiving and playing are carried out, and the downlink voice signal is returned to the trunking service channel to be received after the downlink voice receiving and playing are finished. The timing scanning period can be adjusted according to actual conditions, and the scanning time is one voice superframe duration.

The following describes in detail the implementation scheme of terminal operation mode switching, and if a signal of a certain target (underground or metal shielding building) in a coverage area of a base station is weak or there is no downlink signal of the base station, the terminal can only operate in the direct mode.

The present application can be applied to the system shown in fig. 7 or the central control server in the system shown in fig. 8. The implementation of the present application is described in detail below.

Referring to fig. 12, the present application provides an operating mode switching method, including:

step S1201: receiving terminal information under the condition that a terminal determines that a terminal address is in an information reporting region containing a working mode switching region and reports the terminal information; wherein the terminal information at least comprises a terminal identification.

Some terminals support the follow-up mode, while others do not, since not all terminals need to switch the follow-up mode. The terminal registers with the central control server 200 after being powered on, and in the registration process, the central control server 200 can acquire and store the working modes that the terminal can support. The central control server 200 stores the terminal id and the corresponding pattern data in its own or a database server connected to the central control server.

Step S1202: and determining target mode data corresponding to the terminal identification based on the terminal mode data stored in advance.

The method comprises the steps that terminal mode data are stored in a central control server or a database server connected with the central control server, and the terminal mode data can be inquired based on a terminal identifier so as to obtain target mode data corresponding to the terminal identifier, so that whether the terminal supports a follow-up mode or not can be determined.

Step S1203: and if the target mode data indicate that the terminal supports a preset follow-up mode, sending a working mode switching instruction containing the follow-up mode to control the terminal to be switched from the cluster mode to the follow-up mode.

In the above embodiment, the central server has the decision, so it can directly send the operation mode switching command.

In some cases, other approaches may also be used, such as: when the central control server does not have the decision right, the central control server can send the result that the target mode data represent that the terminal supports the follow-up mode and the terminal information to the dispatching desk server, and the dispatching desk server judges again by combining with the actual scene and obtains a judgment result; the central control server can receive the judgment result sent by the dispatching desk server; and if the judgment result indicates that the switching to the follow-up mode is confirmed, sending a working mode switching instruction containing the follow-up mode.

After the terminal is switched from the trunking mode to the follow-up mode, the method further comprises the following steps:

detecting the field intensity of a downlink signal in a follow-up mode; and if the field intensity of the downlink signal is smaller than the preset working field intensity, controlling the terminal to enter a direct-through mode. Detecting the field intensity of a downlink signal in a direct-through mode; and if the field intensity of the downlink signal is greater than the preset working field intensity, controlling the terminal to enter a follow-up mode.

Referring to fig. 9, when the terminal determines that the terminal address is no longer in the information reporting area including the working mode switching area, a working mode switching instruction including a trunking mode is sent to control the terminal to switch to the trunking mode.

Sending a result of reporting the terminal leaving the information containing the working mode switching region to the region and the terminal information to a dispatching desk server, and judging again by the dispatching desk server in combination with the actual scene to obtain a judgment result; the central control server can receive the judgment result sent by the dispatching desk server; and if the judgment result indicates that the cluster mode is confirmed to be switched, sending a working mode switching instruction containing the cluster mode.

The central control server receives a switching region canceling instruction which is sent by the dispatching desk server and corresponds to the working mode switching region; and sending the switching region canceling instruction, deleting the characteristic parameters corresponding to the information reporting region containing the working mode switching region in the storage space by using the control terminal, and if the terminal is in the follow-up mode, switching the control terminal into the trunking mode.

Specifically, the operating mode switching instruction includes: a traffic channel frequency and a channel frequency to be detected; then, the control terminal is switched from the trunking mode to the follow-up mode, including:

the control terminal skips to the service channel frequency; if the service channel frequency has a downlink voice signal, receiving and playing the downlink voice signal; if the service channel frequency does not have the downlink voice signal, scanning the channel frequency to be detected according to a scanning period; wherein, the scanning period is the duration of one voice frame; and if the downlink voice signal is scanned on the channel frequency to be detected, receiving and playing the downlink voice signal, and returning to the service channel frequency to receive the downlink voice signal after the downlink voice signal is played.

Referring to fig. 13, the following application scenario illustrates application mode switching:

(1) in the BS coverage area, a factory building is provided with a downlink signal of the BS, and the mobile terminal can only carry out direct mode communication in the factory building. The BS issues a random access invitation signaling C _ ALOHA in a control channel. Any terminal in idle state can make random access request according to the random access information carried in the C _ ALOHA signaling.

(2) The mobile terminals MS1, MS2, MS3 and MS4 are all in a cluster working mode after being started up in the coverage area of the base station communication system BS, randomly search according to the channel information pre-written inside or according to the preferred registration channel pre-written inside, and send a random access message REG _ REQ to the system base station BS to request registration after detecting the control channel C _ ALOHA signaling.

The REG _ REQ message carries the operating mode information that the mobile terminal can support. And after the BS verifies the validity, replying an acknowledgement message REG _ ACK to complete the registration network access service of the mobile terminals MS1, MS2, MS3 and MS 4.

(3) The dispatching desk server sets the region range of the work application mode switching according to the position of the factory building, namely, the center (longitude and latitude (X, Y)) of the factory building is taken as the center of a circle, the radius is taken as R, and the work application mode switching region information is sent to MS1, MS2, MS3 and MS4 through BS by broadcasting message LOCATION _ REPORT _ BROADCAST _ MSG.

(4) When MS1, MS2 and MS3 enter the working application mode switching region, and MS1, MS2 and MS3 find that the working application mode switching region has entered through the position location information, a message DOMAIN _ IN _ NOTICE _ MS is sent to the BS on the control channel to report the information. After the BS receives the message, the BS sends a DOMAIN _ IN _ NOTICE _ ACK _ MSG message to inform the MS1, MS2 and MS3 that the message is received; and uploading the data to the central control server.

(5) The central control server receives that the mobile terminals MS1, MS2 and MS3 enter the set work application mode switching region, and inquires through the database that the mobile terminals MS1 and MS2 support work mode switching, and the MS3 does not support work mode switching, and then sends the information about MS1 and MS2 to the dispatching desk server.

(6) And the control personnel of the dispatching desk server knows that the MS1 and the MS2 enter a working application mode switching region on a dispatching desk interface, and determines that the mobile terminals MS1 and MS2 need to be switched to a follow-up working mode according to actual conditions. The dispatcher station server sends the operating mode switching command to the BS.

The BS sends WORK MODE switching control signaling WORK _ MODE _ SWITCH _ MSG to MS1 and MS 2. After receiving and analyzing the signaling, the MS1 and MS2 jump to the designated trunking traffic channel (receiving frequency F _ a and transmitting frequency F _ B), and switch the operation mode to the follow-up operation mode.

I.e. the speech signal is periodically monitored at the through operating frequency F _ B. After switching the operation MODE, the MS1 and the MS2 send acknowledgement feedback messages WORK _ MODE _ SWITCH _ ACK _ MSG to the BS.

(7) When MS1 enters a factory building and the strength of the downlink signal field of the base station is detected to be smaller than-120 dB, the MS can not work in the cluster mode, and then the MS1 is automatically switched to the direct connection working mode. The operating frequency is the periodic monitoring frequency F _ B in the previous follow-up mode, so that the MS2 in the follow-up mode can communicate with the MS1 in the pass-through mode.

(8) When the MS2 is OUT of the working application mode switching zone, a message DOMAIN _ OUT _ notify _ MSG is sent over the control channel to the BS to report this information. The central control server notifies the dispatcher station server of the information that the MS2 is out of the working application mode switching zone.

The dispatcher station server controller needs to switch the working mode of the MS2 to the trunking mode according to actual conditions. The dispatching desk server sends the WORK MODE switching command to the BS, and the BS sends application MODE switching control signaling WORK _ MODE _ SWITCH _ MSG to the MS 2.

(9) After receiving the signaling, the MS2 switches the operating MODE to the trunking MODE, and sends an acknowledgement feedback message WORK _ MODE _ SWITCH _ ACK _ MSG to the BS.

(10) And when the MS1 leaves the factory building, the field intensity of the cluster downlink signal is detected to be higher than a set threshold of-120 dB, and then the follow-up working mode is entered.

The functions described in the method of the present embodiment, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, part of the contribution to the prior art of the embodiments of the present application or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including several instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A digital communication system, comprising:

the target base station is used for broadcasting the characteristic parameters;

2. The system of claim 1,

3. A digital communication system, comprising:

4. The system of claim 3,

5. An information reporting method, comprising:

6. The method of claim 5, wherein during the reporting of the terminal information, the method further comprises:

acquiring the terminal address again by using the positioning equipment;

7. An information reporting method, comprising:

8. The method as claimed in claim 7, wherein the calculating of the address range of the information reporting region including the predetermined region and having the regular shape comprises:

selecting a regular shape of the information reporting region;

and determining the minimum shape region as the information reporting region.

9. The method of claim 7, wherein the determining the characteristic parameter corresponding to the information reporting region includes:

10. The method of claim 7, wherein the terminal information includes at least a terminal address, the method further comprising:

11. A digital communication system, comprising:

12. The system of claim 11,

13. The system of claim 11,

14. The method of claim 11, further comprising:

15. A digital communication system, comprising:

16. The system of claim 11,

17. An application mode switching method, comprising:

18. The method of claim 17, wherein the handover condition further comprises:

19. A method for switching a working mode, comprising:

if the target mode data indicate that the terminal supports a preset follow-up mode, sending a working mode switching instruction containing the follow-up mode to control the terminal to be switched from the cluster mode to the follow-up mode;

20. The method of claim 19, wherein prior to sending the operating mode switch command including the follow-up mode, further comprising:

receiving a judgment result sent by a dispatching desk server;

21. The method of claim 19, wherein after the terminal switches from the trunked mode to the follow-up mode, further comprising:

22. The method of claim 19, further comprising:

23. The method of claim 22, wherein prior to sending the operating mode switch command comprising cluster mode, further comprising:

receiving a judgment result sent by a dispatching desk server;

24. The method of claim 19, further comprising:

25. The method of claim 19, wherein the operating mode switching instruction comprises: a traffic channel frequency and a channel frequency to be detected; then, the control terminal is switched from the trunking mode to the follow-up mode, including:

the control terminal skips to the service channel frequency;