CN111356193B - Terminal handover method and communication terminal - Google Patents

Terminal handover method and communication terminal Download PDF

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Publication number
CN111356193B
CN111356193B CN201811583347.8A CN201811583347A CN111356193B CN 111356193 B CN111356193 B CN 111356193B CN 201811583347 A CN201811583347 A CN 201811583347A CN 111356193 B CN111356193 B CN 111356193B
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terminal
base station
target
information
participating
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CN111356193A (en
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陈卓
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/32Reselection being triggered by specific parameters by location or mobility data, e.g. speed data

Abstract

The application discloses a terminal handover method, which comprises the following steps: the method comprises the steps that when a terminal carries out communication service through a first network, position information of the terminal is obtained; predicting a target non-participating base station to be reached by the terminal according to the position information of the terminal; sending a channel application to a target non-participating base station through a first network so as to enable the target non-participating base station to be converted into a target participating base station of a communication service; and when entering the area covered by the target participating base station, performing the handover process of the target participating base station. By the scheme provided by the application, the terminal handover time can be saved. The application also provides a communication terminal.

Description

Terminal handover method and communication terminal
Technical Field
The present application relates to the field of communications, and in particular, to a terminal handover method and a communication terminal.
Background
In the current definition of related communication protocol (e.g. PDT/DMR communication protocol) of narrowband network, signaling frame and voice frame cannot be transmitted simultaneously, but the non-participating station needs to transmit signaling frame to the system for the non-participating station to make a handover to apply for voice channel, which causes the voice frame to stop transmitting, and thus, the switching time of the channel causes relatively long voice interruption. Therefore, the inherent defects of the cross-area of the non-participating station in the voice service in the current narrow-band network can cause voice loss caused by voice interruption, and obvious quality influence is brought to the conversation quality of a user. Therefore, a method and related apparatus for solving the above problems are needed.
Disclosure of Invention
The technical problem that this application mainly solves is to provide and can make the terminal save the time of the narrowband network handing-over.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a handover method of a terminal, the method comprising:
the method comprises the steps that when a terminal carries out communication service through a first network, position information of the terminal is obtained;
predicting a target non-participating base station to be reached by the terminal according to the position information of the terminal;
sending a channel application to the target non-participating base station through a second network so that the target non-participating base station is converted into a target participating base station of the communication service;
and performing the handoff process of the target participating base station when entering the area covered by the target participating base station.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a communication terminal, the terminal comprising: a processor, a memory, a positioning circuit, and a communication circuit, the processor interconnected with the memory and the communication circuit;
the positioning circuit is used for acquiring the position information of the terminal so as to enable the processor to call the position information;
the communication circuit is used for responding to the instruction of the processor to communicate with a base station;
the memory is used for storing program data;
the processor is configured to execute the program data to perform the handover method of the terminal as described above.
According to the scheme, when the terminal carries out communication service through the first network, the position information of the terminal is obtained, and the target non-participating base station which the terminal will reach is predicted according to the obtained position information; and sending a channel application to the target non-participating base station through the second network so that the target non-participating base station is converted into the target participating base station of the communication service in advance. Therefore, the method can be realized, and when the terminal enters the area covered by the target non-participating base station, the cross-area process of the target participating base station is carried out. The non-participating base stations are obtained through the position information prediction of the terminal, then the channel application is sent through the second network when the terminal does not enter the coverage area, when the terminal enters the coverage area of the original target non-participating base station, only the target participating base station handover process needs to be carried out, and the handover time of the terminal is greatly saved by temporarily applying the channel and waiting for the response of the base station when the terminal enters the target non-participating base station in the prior art.
Drawings
Fig. 1 is a flowchart illustrating an exemplary embodiment of a handover method of a terminal according to the present invention;
fig. 2 is a flowchart illustrating a handover method of a terminal according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a handover method of a terminal according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a communication terminal according to the present application;
fig. 5 is a schematic structural diagram of an embodiment of a storage medium according to 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. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
In the voice service of the narrow-band network in the prior art, the non-participating base station cross-zone process has inherent defects, which can cause voice interruption and even cause serious voice loss, and bring obvious influence on the conversation quality of a user. Specifically, the handover procedure of the existing non-participating base station is as follows: in the corresponding PDT/DMR communication protocol, a signaling frame and a voice frame cannot be transmitted simultaneously, but a non-participating base station needs a terminal to transmit the signaling frame to the base station for non-participating base station handover voice channel application, and based on the protocol requirement, the voice frame at the moment stops being transmitted, and simultaneously, the voice interruption of at least 420ms is caused by adding the time of channel switching. The technical solution provided by the present application is mainly used to solve the problem caused by this inherent defect, and the detailed description is provided below.
Please refer to fig. 1, which is a flowchart illustrating an exemplary embodiment of a handover method of a terminal according to the present disclosure. The main execution body of the method provided by the present application is a terminal capable of performing both network communication methods of the first network and the second network simultaneously. For example, the two networks in the current embodiment are a narrowband network and a broadband network, respectively. Of course, it is understood that in other embodiments, the two networks may be a broadband network and a narrowband network, such as broadband networks of different frequency bands. As can be seen from the figure, the method comprises the following steps:
s110: the terminal acquires the position information of the terminal when the terminal carries out communication service through the first network.
Wherein, the first network refers to a narrowband network. That is, step S110 is to acquire the location information of the terminal in real time when the terminal performs a communication service through the narrowband network. The communication service comprises the following steps: voice communication traffic.
In the current embodiment, the obtaining the location information of the terminal includes: and acquiring the position information of the terminal through the positioning function of the terminal. Namely, the position information of the terminal is obtained through the positioning information module of the terminal.
In other embodiments, obtaining the location information of the terminal includes: and calculating to obtain the position information of the terminal by utilizing the signal strength between the terminal and the participating base station of the communication service covering the current position of the terminal. For example, when the location module of the terminal cannot obtain the location information of the terminal due to some unknown factors, the location information of the terminal may be determined through the nearest base station to which the terminal is connected, and the obtained location information of the terminal may also be used for prediction of a target non-participating base station in the following.
Since the signal coverage area of the base station is relatively large, when the terminal performs a communication service through the first network, the positioning module of the terminal may pay attention to obtain the location information of the terminal in real time. Of course, in other embodiments, when the moving speed of the terminal is relatively slow and the coverage area of the current base station is large, and it is expected that the terminal will need to use the scheme provided by the present application within a certain time, the terminal may also obtain the location information of the terminal at intervals of a set time, which may save part of power for the terminal.
S120: and predicting a target non-participating base station to be reached by the terminal according to the position information of the terminal.
After the terminal acquires the position information, the target non-participating base station to be reached is predicted and obtained based on the position information. The target non-participating base station is a base station which is predicted to obtain a region corresponding to an area where the terminal will enter and needs to provide communication resources for the terminal based on the position information of the terminal, that is, a base station which does not currently provide resource support for communication services of the terminal but may provide communication resource support for the terminal.
S130: and sending a channel application to the target non-participating base station through the second network so that the target non-participating base station is converted into a target participating base station of the communication service.
The second network is a network other than the first network and capable of communicating with the base station. Specifically, in the present embodiment, the second network is a broadband network.
Specifically, the signal flow of the channel application is sent to the target non-participating base station through the second network: the terminal sends a channel application instruction to a base station of the public network through the broadband network, then the public network base station sends the received channel application from the terminal to the internet, and finally sends the channel application instruction to a target non-participating base station through the internet. It should be noted that, in the technical solution provided in the present application, all narrowband network base stations (i.e., the first network base station) are connected to the internet. Therefore, the terminal only needs to pass through a broadband network in advance through a public network and the internet, and when the terminal does not reach the signal coverage area of the target non-participating base station, the terminal firstly sends a channel application to the target non-participating base station and applies the channel to the target non-participating base station in advance. And after acquiring the channel application of the terminal, the target non-participating base station accepts the new channel application and then allocates a channel required by communication for the terminal, so that communication resources are provided for the terminal in advance. The target non-participating base station provides communication resources for the terminal, that is, the target non-participating base station is converted into a target participating base station supporting the communication service of the terminal (the target participating base station provides communication channel resources for the terminal, and even if the current terminal does not really utilize the channel resources provided by the target participating base station during the communication service, the target participating base station still provides channel resource support for the terminal).
In the present embodiment, after the step S130 of sending a channel application to the target non-participating base station through the second network, so that the target non-participating base station is converted into a target non-participating base station of the communication service, the method provided in the present application further includes: and acquiring a channel configuration message sent by the target participating base station through a second network.
Wherein the channel configuration message comprises: and the target participating base station provides the information of the target channel for the terminal, and the information of the target channel is embodied as the frequency of the channel. Specifically, after the terminal applies in step S130, the target non-participating base station converts the base station called the target participating base station, and the process of issuing the configuration message to the terminal through the second network is as follows: the target participating base station sends a configuration message to the terminal in a data flow direction from the internet to the public network to the terminal so as to inform the terminal of a channel configuration message provided by the current base station for the terminal, so that the terminal can perform channel switching according to the configuration message when entering an area covered by the target participating base station signal, thereby saving the cross-zone time and providing good communication experience for the user. Specifically, performing channel switching according to the configuration message means that the terminal implements a channel provided by the previous target participating base station and switches to a channel provided by the current target participating base station, so as to maintain a coherent communication service of the communication terminal.
S140: and when entering the area covered by the target participating base station, performing the handoff process of the target participating base station.
When the terminal enters the coverage area of the target non-participating base station predicted in step S120, that is, the target participating base station in step S130, since the channel application has been sent to the target non-participating base station in advance through step S130, and the base station is successfully converted from the target non-participating base station to the target participating base station, the converted target participating base station already provides communication resources for the terminal. Therefore, when the terminal enters the coverage area of the target participating base station, the handover can be realized only by performing the handover process of the participating base station.
The target participation base station handover process comprises the following steps: and switching the channel adopted by the communication service to a target channel according to the channel configuration message. Because the terminal has not entered the coverage area of the target participating base station, namely, the channel is applied through the broadband network, the channel switching can be directly carried out when the terminal enters the coverage area of the target base station, and a signaling frame does not need to be sent to the target participating base station through the narrowband network to apply for the channel. The terminal is informed of the channel which can be handed off only according to the configuration message sent by the target participating base station through the second network, so that the target channel can be directly switched to at the moment. Compared with the prior art that the handover is carried out at the time of the handover without participating in the base station, the time of the handover is better saved, and a more consistent communication experience is provided. The target channel refers to a usable channel reported in a configuration message issued by the target participating base station.
According to the technical scheme, when the terminal carries out communication service through a narrow-band network, the real-time position information of the terminal is obtained, the target non-participating base station which is to be reached by the terminal is predicted based on the obtained position information, and then channel application is sent to the target non-participating base station through the wide-band network, so that the target non-participating base station is converted into the target participating base station of the communication service. When the terminal does not reach the coverage area of the target participating base station, the channel is applied in advance based on the broadband network and the channel configuration message is acquired through the broadband network, so that the channel is not required to be sent to the target participating base station through the narrow-band network when the terminal reaches the coverage area of the target participating base station. Because the channel is applied when the target base station does not reach the target base station, the channel switching is directly carried out just according to the channel configured by the target base station, namely, only the participating base station needs to be handed off. Through the technical scheme provided by the application, the time of voice interruption is reduced, and the user experience is well improved.
Please refer to fig. 2, which is a detailed flowchart illustrating step S120 in the embodiment shown in fig. 1. The method comprises the following steps:
s221: and pre-judging the motion trail of the terminal according to the position information of the terminal.
The motion trail is a position which the terminal may pass through within a preset time from the current moment.
If a target participating base station to be reached by the terminal is to be predicted, the motion track of the terminal in the next time needs to be known first, so that the target non-participating base station to be encountered when the terminal moves along the motion track can be obtained.
Further, step S221 further includes: and calculating to obtain the motion trail of the terminal according to the position information of the terminal by using a preset trail prediction algorithm. The preset track prediction algorithm comprises the following steps: and (4) a trajectory prediction algorithm of a Gaussian mixture model.
Of course, in other embodiments, the preset trajectory prediction algorithm further includes: naive Bayes prediction and the like can be applied to the algorithm of the trajectory prediction, and the method is not limited in detail.
Specifically, calculating the motion trajectory of the terminal according to the position information of the terminal includes: and obtaining the motion trail of the terminal according to the position information of the terminal, the service characteristic information of the terminal and/or the historical motion trail record of the terminal, wherein the calculation of the trail is to calculate the probability of the terminal appearing in each geographical position, and one position with the maximum probability or a plurality of positions with larger probability is taken as the next trail of the terminal. When calculating the trajectory of the terminal, it is necessary to input implementation speed information, direction information, map information about the vicinity of the current position of the terminal, and the like of the terminal.
The service characteristic information of the terminal comprises: the initial definition service type of the terminal and/or various service statistical data processed by the terminal. The initial defined service type of the terminal is: the use of the terminal defined when leaving factory, such as the service types defined when leaving factory of the police interphone and the civil interphone are different. For example, when the terminal is a police interphone: the general walkie-talkie for patrol is relatively fixed in the moving route of the patrol every day. Then, the next movement track of the interphone can be calculated and obtained more accurately according to the called historical movement track record of the terminal, and the accurate movement track can enable the next target prediction non-participating base station to be more accurate.
S222: and determining the target non-participating base station according to the motion trail and the base station attribute information in the preset area.
In the present embodiment, each terminal at least prestores location information of base stations with a very high degree of correlation with the terminal, or the terminal prestores information of all base stations in a certain area for calling when related services are needed. And determining the target non-participating base station according to the terminal track information obtained by prediction calculation and the base station attribute information in the preset area. It will be appreciated that in some other embodiments, the location information of the base station or the like may be stored at the network and may be downloaded by the terminal over the network as needed.
Wherein, the base station attribute information includes: the geographic position of the base station, the number of the base station, the signal coverage radius of the base station and the transmitted signal strength of the base station. The geographic position of the base station is the position information corresponding to each base station, and can be represented by longitude and latitude coordinates. The base station number is a number set for each base station in the entire communication system, and the number is an identity tag of the base station. Coverage radius of signal of base station: is the current signal coverage capability of the base station. The transmission signal strength of the base station refers to the strength of the narrowband signal of the base station which is transmitted outwards. It is understood that in other embodiments, the base station attribute information may also include other types of information, which are not specifically listed here.
Further, in an embodiment, the flow of step S222 is as illustrated in fig. 3, and the method includes:
s321: and calculating to obtain the signal coverage area of the base station based on the geographical position of the base station in the preset area and the signal coverage radius of the base station.
As described above, in the current embodiment, the geographical location information, the coverage radius, and other information of all base stations in the area where the terminal is located are pre-stored to the terminal in advance. After the position information of the terminal is confirmed and the movement track is calculated, the base station in a preset area is confirmed based on the position information and the movement track of the terminal. And then calculating and obtaining the signal coverage area of the base station based on the determined geographical position and signal coverage radius of the base station in the preset area, so that when the terminal moves along the calculated motion track in the preset time, the terminal possibly becomes the signal coverage area of the base station of which the terminal participates in the base station, and finally, a more accurate target non-participating base station can be determined and obtained.
S322: and judging whether the motion trail of the terminal and the signal coverage area of the base station have intersection or not.
And obtaining a motion track of the terminal and a signal coverage area of a base station in a preset area related to the motion track based on the steps, comparing the motion track of the terminal with the signal coverage areas of the base stations to judge whether an intersection exists between the motion track of the terminal and the signal coverage areas of the base stations, and determining which base station signal coverage areas the terminal passes through when the terminal moves forwards along the track obtained by calculation. And when the intersection of the motion trail of the terminal and the signal coverage area of the base station is obtained through judgment, determining the base station as a target base station. Otherwise, the base station is a non-target base station.
S323: and if so, determining the base station as the target base station.
And when the intersection of the motion trail of the terminal and the signal coverage area of the base station is obtained through judgment, the base station is determined to be the target base station. It should be noted that, in the current embodiment, the number of the target base stations may be one or more. The case where there are a plurality of target base stations means that there may be a plurality of base stations covered by signals of the plurality of base stations at a certain point.
In still other embodiments, when the calculated motion trajectory is long and the bend direction change may be large, a plurality of base stations respectively covering different positions on the calculated trajectory appear on the motion trajectory. A predetermined number of base stations that are relatively closest to the current location of the terminal are selected. The preset number is preset, and the base stations with the preset number are selected, so that the accuracy and the processing speed can be improved better.
Specifically, when a certain position in the motion trajectory of the terminal intersects with the signal coverage areas of the multiple base stations, the signal strength between the terminal and the multiple base stations when the terminal moves along the motion trajectory is obtained according to the coverage radii and the motion trajectory of the multiple base stations.
Then, the obtained signal strength between the terminal and each base station is compared, and the stronger the signal strength between the terminal and the base station, the closer the distance is, the more stable signal strength can be provided for the terminal, and meanwhile, the communication request of the terminal can be responded to quickly. Therefore, whether the base station is the target base station can be determined according to the signal intensity, and the base station with the maximum signal intensity or the base stations with the maximum intensity obtained by comparison can be used as the target base station. The target base station refers to a base station which is most likely to provide communication resources for the terminal, but it is also required to confirm whether the determined target base station participates in the communication service providing resources of the terminal at the current time.
S324: and when the target base station is judged to be the non-participating base station of the communication service, determining the target base station to be the target non-participating base station.
After the target base station is determined through the above steps S321 to S323, it is further required to determine whether the target base station is a non-participating base station of the terminal communication service. And when the target base station is judged to be the non-participating base station of the terminal communication service, determining that the target base station is the target non-participating base station. When the base station is determined to be the target non-participating base station of the terminal, a channel application is sent to the target non-participating base station through a second network, so that the target non-participating base station is converted into the target participating base station of the communication service.
It should be noted that, in the technical solution provided in the present application, after the determination and channel application for a target non-participating base station are completed, the terminal may continue to predict the trajectory information of the terminal again based on the latest position information change of the terminal, predict the target non-participating base station that the terminal will reach, and send a channel application through the broadband network after determining the target non-participating base station, so that the target non-participating base station is converted into a participating base station, so as to obtain the communication resource of the target non-participating base station in advance, thereby saving time for a handover that the terminal may perform.
Please refer to fig. 4, which is a schematic structural diagram of a communication terminal according to an embodiment of the present application. The terminal provided by the application can carry out at least two network communications, including a narrow-band network and a broadband network. Specifically, the communication terminal provided by the present application includes: a processor 401, a memory 402, and communication circuitry 403. Processor 401 is interconnected with memory 402 and communication circuitry 403.
The communication circuit 403 is used for communicating with a base station in response to an instruction of the processor 401, where the communication refers to bidirectional communication. Wherein, the communication circuit 403 can communicate with both the narrowband base station and the broadband network base station under the control of the processor 401.
The memory 402 is used for storing program data which, when executed by the processor, may implement the methods as set forth in the respective embodiments of fig. 1-3 above.
In the present embodiment, the communication terminal 400 provided by the present application further includes a positioning circuit 404, configured to obtain the location information of the communication terminal 400, so that the processor can call the location information. After the processor 401 obtains the position information of the communication terminal 400 through the positioning circuit 404, the motion trajectory of the communication terminal within the preset time can be calculated according to the obtained terminal position information, and then the target non-participating base station is calculated by comparing with the pre-stored base station information. After obtaining the target non-participating base station, the processor 401 may control the communication circuit 103 to send a channel application to the target non-participating base station through the second network, so that the target non-participating base station is converted into the target participating base station, and a communication resource support is provided for the communication terminal in advance. Wherein, providing the communication resource support means configuring available channel resources for the communication terminal.
Referring to fig. 5, the present application also provides a storage medium 500. The storage medium stores program data 501, and the program data 501, when executed, implements the positioning method of the visual odometer as described above and the methods described in the respective embodiments. Specifically, the storage medium 500 having the storage function may be one of a memory, a personal computer, a server, a network device, or a usb flash drive.
The above description is only an embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A method for a terminal to perform a handoff, the method comprising:
the method comprises the steps that when a terminal carries out communication service through a first network, position information of the terminal is obtained;
pre-judging the motion trail of the terminal according to the position information of the terminal, the service characteristic information of the terminal and at least one of the real-time speed information, the direction information and the map information near the current position of the terminal;
predicting a target non-participating base station which the terminal will reach according to the motion track and the base station attribute information in a preset area, wherein the service characteristic information of the terminal comprises: the initial definition service type of the terminal and/or various service statistical data processed by the terminal, wherein the initial definition service type is used for representing the purpose of the initial definition of the terminal;
sending a channel application to the target non-participating base station through a second network so that the target non-participating base station is converted into a target participating base station of the communication service;
and performing the handoff process of the target participating base station when entering the area covered by the target participating base station.
2. The method of claim 1, wherein the first network is a narrowband network, the second network is a broadband network, and the communication service is a voice communication service.
3. The method according to claim 1, wherein the motion trajectory is a position that the terminal will pass through within a preset time from a current time.
4. The method according to claim 3, wherein the predicting the motion trail of the terminal according to the position information and the service characteristic information of the terminal and at least one of real-time speed information, direction information and map information of the vicinity of the current position of the terminal comprises:
calculating to obtain the motion trail of the terminal according to the position information of the terminal, the service characteristic information of the terminal and at least one of the real-time speed information, the direction information and the map information near the current position of the terminal by using a preset trail prediction algorithm;
wherein the preset trajectory prediction algorithm comprises: and (4) a trajectory prediction algorithm of a Gaussian mixture model.
5. The method according to claim 4, wherein the calculating the motion trail of the terminal according to the position information and the service characteristic information of the terminal and at least one of the real-time speed information, the direction information and the map information around the current position of the terminal comprises:
and obtaining the motion trail of the terminal according to the position information of the terminal, the service characteristic information of the terminal, at least one of the real-time speed information, the direction information and the map information near the current position of the terminal, and the historical motion trail record of the terminal.
6. The method of claim 3, wherein the base station attribute information comprises: the geographic position of the base station, the number of the base station, the coverage radius of the signal of the base station, and the transmitted signal strength of the base station;
the step of calculating to obtain the target non-participating base station according to the motion track and the base station attribute information in the preset area comprises:
calculating and solving a signal coverage area of the base station based on the geographical position of the base station in the preset area and the signal coverage radius of the base station;
judging whether the motion trail of the terminal and the signal coverage area of the base station have intersection or not;
if yes, determining the base station as a target base station;
and when the target base station is judged to be the non-participating base station of the communication service, determining the target base station to be the target non-participating base station.
7. The method of claim 6, wherein the determining that the base station is a target base station comprises:
when the motion trail of the terminal has intersection with the signal coverage areas of the base stations, obtaining the signal strength between the terminal and the base stations when the terminal moves along the motion trail according to the coverage radius of the base stations and the motion trail;
and determining the base station with the maximum signal strength as the target base station.
8. The method of claim 1,
after the sending of the channel request to the target non-participating base station through the second network so that the target non-participating base station is converted into the target non-participating base station of the communication service, the method further includes:
acquiring a channel configuration message issued by the target participating base station through the second network, wherein the channel configuration message comprises: the target participating base station provides information of a target channel for the terminal;
the performing the target participating base station handoff procedure comprises:
and switching the channel adopted by the communication service to the target channel according to the channel configuration message.
9. The method of claim 1, wherein the obtaining the location information of the terminal comprises:
acquiring the position information of the terminal through the positioning function of the terminal; or
And calculating to obtain the position information of the terminal by utilizing the signal strength between the terminal and the participating base station of the communication service covering the current position of the terminal.
10. A communication terminal, characterized in that the terminal comprises: a processor, a memory, a positioning circuit, and a communication circuit, the processor interconnected with the memory and the communication circuit;
the positioning circuit is used for acquiring the position information of the terminal so as to enable the processor to call the position information;
the communication circuit is used for responding to the instruction of the processor to communicate with a base station;
the memory is used for storing program data;
the processor is configured to execute the program data to perform the method of any of claims 1 to 9.
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