CN110769427B - Channel resource dynamic allocation method, device and storage medium of simulcast system - Google Patents
Channel resource dynamic allocation method, device and storage medium of simulcast system Download PDFInfo
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- CN110769427B CN110769427B CN201810846317.5A CN201810846317A CN110769427B CN 110769427 B CN110769427 B CN 110769427B CN 201810846317 A CN201810846317 A CN 201810846317A CN 110769427 B CN110769427 B CN 110769427B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to a channel resource dynamic allocation method, a device and a storage medium of a simulcast system, which comprise the following steps: s1, a simulcast system receives a call request sent by a terminal, wherein the call request carries group attribute information of the terminal; s2, acquiring first position information of a terminal according to a call request; s3, determining a current adaptive base station according to the first position information of the terminal; s4, the simulcast system detects whether the current adaptive base station has idle channels or not; s5, if the simulcast system detects that the current adaptive base station has the idle channel, the idle channel is distributed through the current adaptive base station. The invention realizes that the simulcast system can support more services on limited channel resources, improves user experience, reduces the emission time of a channel machine, saves the power consumption of the system, prolongs the service life of the system, improves the product competitiveness and occupies the sales market more widely.
Description
Technical Field
The present invention relates to the field of simulcasting technologies, and in particular, to a method, an apparatus, and a storage medium for dynamically allocating channel resources in a simulcasting system.
Background
The simulcast system is mainly applied along railways and highways and used for saving limited frequency resources. When a call is established, all base stations in the simulcast system can allocate channel resources with the same frequency (the digital system also needs the same time slot), and an end user does not need to switch frequency points or time slots in the process of handover. However, in the practical application process, we find that the users of the talk group in the system occupy only part of the channel resources of the base station at a time, however, according to the current channel allocation method, although most of the users of the talk group do not exist under the base station, the system allocates channels under all the base stations as well, so that the situation of channel resource waste exists, and meanwhile, the service life of the system is greatly reduced because the channel machine is always in a transmitting state. The more base stations of the simulcast system, the longer the coverage line, and the more serious this waste phenomenon.
After a terminal on a certain train initiates a call, not only the corresponding base station will allocate channels, but also all base stations in the same frequency region will allocate channels, even if some base stations do not have users of the talk group, thus wasting channel resources is caused. As shown in fig. 1, a user initiates a call under a site02 base station, and a message is allocated regardless of whether other base stations have called users, which results in serious waste of channel resources.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a channel resource dynamic allocation method, a device and a storage medium of a simulcast system aiming at the defects of the prior art.
The technical scheme adopted for solving the technical problems is as follows: a channel resource dynamic allocation method for constructing a simulcast system comprises the following steps:
s1, a simulcast system receives a call request sent by a calling terminal, wherein the call request carries group attribute information of the calling terminal;
s2, acquiring first position information of the calling terminal according to the call request;
s3, determining a current adaptive base station of the calling terminal and a current adaptive base station of the called terminal according to the first position information of the calling terminal and combining the first position information of the called terminal;
s4, the simulcast system detects whether the current adaptive base station has an idle channel or not;
s5, if the simulcast system detects that the current adaptive base station has an idle channel, the idle channel is distributed to the calling terminal and the called terminal through the current adaptive base station.
Preferably, the first location information of the calling terminal is obtained through geographical location information of the calling terminal when sending a call request and/or quality information of uplink signal quality of the calling terminal when sending the call request.
Preferably, the method further comprises:
s6, if the current adaptive base station has no idle channel, detecting whether other group call services exist outside a preset distance range, and if not, not distributing the channel;
s7, if the simulcast system detects that other group call services exist outside the preset distance range, the same-frequency channels are distributed to the calling terminal and the called terminal.
Preferably, the current adaptive base station of the calling terminal includes an initial base station corresponding to the first position information of the calling terminal and two base stations adjacent to the initial base station;
the current adaptive base station of the called terminal comprises an initial base station corresponding to the first position information of the called terminal and two base stations adjacent to the initial base station.
Preferably, the method further comprises:
in the process of executing call service by the calling terminal and the called terminal:
acquiring second position information of the calling terminal and the called terminal;
determining the travelling directions of the calling terminal and the called terminal according to the second position information of the calling terminal and the called terminal;
and adjusting the current adaptive base station according to the travelling directions of the calling terminal and the called terminal.
Preferably, the determining the traveling directions of the calling terminal and the called terminal according to the second position information of the calling terminal and the called terminal includes:
and determining the travelling direction of the terminal according to the real-time geographic position and/or the quality information of the uplink signal quality of the calling terminal and the called terminal in the process of executing the call service.
Preferably, the step of adjusting the current adaptive base station according to the traveling directions of the calling terminal and the called terminal includes:
judging whether the second position information of the calling terminal and the called terminal meets a preset condition or not;
if yes, adding base stations according to the travelling directions of the calling terminal and the called terminal to serve as the adaptive base stations when the calling terminal and the called terminal are located in the second position information, and deleting the last base station along the reverse direction of the travelling directions of the calling terminal and the called terminal.
Preferably, if the second location information of the calling terminal and the called terminal does not meet the preset condition, the current adaptive base station is kept unchanged.
Preferably, the calling terminal comprises a first calling terminal and a second calling terminal, the call request comprises a first call request and a second call request, and the first position information of the calling terminal comprises position information of the first calling terminal and position information of the second calling terminal;
the step S3 is preceded by:
s3-1, judging whether the distance between the first calling terminal and the second calling terminal meets the preset distance requirement according to the position information of the first calling terminal and the position information of the second calling terminal;
s3-2, if so, respectively distributing current adaptive base stations to the first calling terminal and the second calling terminal according to the position information of the first calling terminal and the position information of the second calling terminal;
s3-3, if not, distributing the current adaptive base station to the terminal which initiates the call request.
Preferably, the step S2 includes, before:
s2-1, acquiring group attribute information of the calling terminal according to the call request;
s2-2, judging whether the calling terminal belongs to the same-frequency simulcast channel according to the group attribute information, and if so, executing the step S2.
The invention also provides a computer device comprising a processor for implementing the steps of the method as described above when executing a computer program stored in a memory.
The invention also provides a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, implements the steps of the method as described above.
The method, the device and the storage medium for dynamically allocating channel resources of the simulcast system have the following beneficial effects: when the terminal establishes a call, the simulcast system determines an initial allocation base station and a channel participating in the call according to the geographic position or the uplink signal quality of the terminal and the base station where the same call group member is located. In the call process, the system adjusts the base stations participating in the call at any time according to the position change and other conditions of the members of the call group, and other simulcast base stations do not allocate channel resources. The method and the system realize that the simulcast system can support more services on limited channel resources, improve user experience, reduce the emission time of a channel machine, save system power consumption, prolong system service life, improve product competitiveness and more widely occupy the sales market.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic flow chart of a dynamic allocation method of channel resources in a simulcast system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a second embodiment of a channel resource dynamic allocation method of a simulcast system according to the present invention;
fig. 3 is a flow chart of a method for dynamically allocating channel resources in a simulcast system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of base station allocation dynamics of a channel resource dynamic allocation method of a simulcast system according to the present invention;
fig. 5 is a schematic diagram of base station allocation in the same direction for two groups of terminals in a channel resource dynamic allocation method of a simulcast system according to the present invention;
fig. 6 is a schematic diagram of base station allocation of two groups of terminals in opposite directions in a dynamic allocation method of channel resources of a simulcast system according to the present invention;
fig. 7 is a schematic structural diagram of a computer device according to the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1, a flow chart of a first embodiment of a method for dynamically allocating channel resources in a simulcast system according to the present invention is shown.
In this embodiment, the method for dynamically allocating channel resources includes the following steps:
step S1, the simulcast system receives a call request sent by a calling terminal, wherein the call request carries group attribute information of the calling terminal.
The group attribute information carried in the call request is used to identify whether the calling terminal is a calling terminal in a specific scenario, that is, whether the calling terminal is suitable for the dynamic channel allocation method. The specific scene can be a railway, a highway and other scenes, whether the base station and the same-frequency and same-time-slot multiplexing channel can be dynamically allocated or not is judged through the group of attribute information, and if the base station and the same-frequency and same-time-slot multiplexing channel do not belong to the same-frequency and same-time-slot multiplexing channel, the original method for allocating the same-time-slot system channels is adopted.
Specifically, after receiving a call request sent by a calling terminal, the following steps are executed:
s2-1, acquiring group attribute information of a calling terminal according to a call request;
s2-2, judging whether the calling terminal belongs to the same-frequency co-broadcast channel according to the group attribute information, and if so, executing the step S2.
And S2, acquiring first position information of the calling terminal according to the call request.
Optionally, the first location information of the calling terminal may be obtained through geographical location information of the calling terminal when sending the call request and/or quality information of uplink signal quality of the calling terminal when sending the call request.
The geographic position information of the calling terminal can be obtained through a GPS positioning module arranged in the calling terminal. By GPS positioning, the real-time geographic position of the calling terminal can be known.
And step S3, determining a current adaptive base station of the calling terminal and a current adaptive base station of the called terminal according to the first position information of the calling terminal and combining the first position information of the called terminal.
Here, the first location information of the called terminal may be obtained through geographical location information when the called terminal joins the group call and/or quality information of uplink signal quality of the called terminal. Specifically, when the called terminal joins the group call, the simulcast system can detect the current real-time geographical position information of the called terminal and the quality information of the uplink signal quality thereof.
Specifically, for the calling terminal and the called terminal, after determining their location information, their current adapted base stations can be determined.
In general, the current adaptive base station may be a base station closest to the geographic location of the calling terminal (called terminal), but in order to ensure that the calling terminal (called terminal) can always receive a normal signal, a plurality of neighboring base stations may be added on both sides of the closest base station. Further, to save resources, one base station may be extended on each of the left and right sides of the nearest base station. Therefore, in the embodiment of the present invention, it is preferable that the current adaptive base station includes an initial base station corresponding to the first location information of the calling terminal and two base stations adjacent to the initial base station. That is, the currently adapted base station of the calling terminal includes an initial base station corresponding to the first location information of the calling terminal and two base stations adjacent to the initial base station. The current adapted base station of the called terminal includes an initial base station corresponding to the first location information of the called terminal and two base stations adjacent to the initial base station.
And S4, the simulcast system detects whether the current adaptive base station has idle channels or not.
And S5, if the simulcast system detects that the current adaptive base station has an idle channel, the idle channel is distributed to the calling terminal and the called terminal through the current adaptive base station.
Further, the channel resource dynamic allocation method of the simulcast system in the embodiment of the present invention further includes:
and S6, if the current adaptive base station has no idle channel, detecting whether other group call services exist outside the preset distance range, and if not, not distributing the channel.
And S7, if the simulcast system detects that other group call services exist outside the preset distance range, the same-frequency channels are allocated to the calling terminal and the called terminal.
It can be understood that, since the channel resource dynamic allocation method of the present invention allocates as few base stations as possible in the same frequency region, only the base stations adapted to the terminal positions of a certain group are allocated when the certain group is talking, and other base stations in the same frequency region are not allocated. Therefore, when there are no complete idle channels on all simulcast base stations in the simulcast system, if there are other group call services outside the preset distance range, the same frequency service channels of the group call service outside the preset distance range can be allocated to the group call initiated by the calling terminal. The preset distance range is that the distances between the two groups of base stations participating in the conversation are required to meet the preset distance in the same frequency area, so that interference among the two groups of base stations in the conversation process is avoided.
Referring to fig. 2, a flow chart of a second embodiment of a method for dynamically allocating channel resources in a simulcast system according to the present invention is shown.
This embodiment is performed after the embodiment is completed. Specifically, after determining the current adaptive base stations of the calling terminal and the called terminal, channels are allocated to the calling terminal and the called terminal through the current adaptive base stations.
In the process of executing call service by the calling terminal and the called terminal, namely, in the process of executing group call by the calling terminal and the called terminal, the following steps are executed:
step S21, second position information of the calling terminal and the called terminal is acquired.
The second position information of the calling terminal and the called terminal is obtained through the real-time geographic position and/or the quality information of the uplink signal quality of the calling terminal and the called terminal in the group communication executing process.
And S22, determining the travelling directions of the calling terminal and the called terminal according to the second position information of the calling terminal and the called terminal.
In the step, the travelling direction of the terminal is determined according to the real-time geographic position and/or the quality information of the uplink signal quality of the calling terminal and the called terminal in the process of executing the call service.
Specifically, the traveling direction of the calling terminal can be determined according to the comparison between the real-time geographic position of the calling terminal in the process of executing the call service and the real-time geographic position of the calling terminal when the call is initiated; or determining the traveling direction of the calling terminal according to the strength of the quality information of the uplink signal quality of the calling terminal. Similarly, the real-time geographic position of the called terminal in the process of executing the call service is compared with the real-time geographic position when the called terminal joins the group call, so that the travelling direction of the called terminal can be determined; or determining the travelling direction of the called terminal according to the strength of the quality information of the uplink signal quality of the called terminal.
Step S23, the current adaptive base station is adjusted according to the travelling directions of the calling terminal and the called terminal.
Specifically, the method comprises the following steps:
step S231, judging whether second position information of the calling terminal and the called terminal meets preset conditions;
and step 232, if yes, adding base stations according to the travelling directions of the calling terminal and the called terminal to serve as the adaptive base stations when the terminals are located in the second position information, and deleting the last base station along the reverse direction of the travelling directions of the calling terminal and the called terminal.
And step S233, if the second position information of the calling terminal and the called terminal does not meet the preset condition, keeping the current adaptive base station unchanged.
The second position information of the calling terminal satisfies the preset condition: the second location of the calling terminal is beyond the coverage of the adapted base station when the call is sent. Therefore, at this time, it is necessary to add a base station along the traveling direction of the calling terminal so that the calling terminal can receive the normal signal, and at the same time, delete the last base station along the reverse direction of the traveling direction thereof, so as to save resources. Likewise, the second location information of the called terminal satisfies the preset condition: the second location information of the called terminal is beyond the coverage of the adapted base station when the call is sent. Therefore, at this time, the base station needs to be added along the traveling direction of the called terminal so that the called terminal can receive the normal signal, and at the same time, the last base station is deleted along the reverse direction of the traveling direction of the called terminal so as to save resources.
The second position information of the calling terminal does not meet the preset condition: the second location of the calling terminal is still within the coverage of the adapted base station and therefore there is no need to change the base stations involved in the call.
It should be noted that, the first embodiment and the second embodiment are both channel resource dynamic allocation methods of the simulcast system that initiates a group of calls.
When two different group calls need to be established in a same frequency area, the following method is needed to process.
Specifically, in this embodiment, the calling terminal includes a first calling terminal and a second calling terminal, the call request includes a first call request and a second call request, and the first location information of the calling terminal includes location information of the first calling terminal and location information of the second calling terminal.
Before executing step S3, the following steps are executed:
and S3-1, judging whether the distance between the first calling terminal and the second calling terminal meets the preset distance requirement according to the position information of the first calling terminal and the position information of the second calling terminal.
And step S3-2, if yes, respectively distributing the current adaptive base station to the first calling terminal and the second calling terminal according to the position information of the first calling terminal and the position information of the second calling terminal.
And step S3-3, if not, distributing the current adaptive base station to the terminal which initiates the call request.
Here, the group call initiated by the first calling terminal is defined as a first group call, and the group call initiated by the second calling terminal is defined as a second group call. Therefore, when the distance between the first calling terminal and the second calling terminal meets the preset distance, as the base stations where the two terminals are located are far enough apart, the simulcast system receives the control outage uplink signals of the respective base stations and does not interfere with each other, and the simulcast system can determine the respective adaptive base stations through the respective position information (geographic position and/or uplink signal quality).
In contrast, if the distance between the first calling terminal and the second calling terminal does not reach the preset distance requirement, signal interference can be generated. At this time, only the terminal that initiates the group call request is allocated with the adaptive base station, and then the terminal that initiates the group call request is not allocated, i.e. the terminal that initiates the group call request later cannot establish a call.
Referring to fig. 3, a flow chart of an embodiment of a method for dynamically allocating channel resources in a simulcast system is shown.
As shown in fig. 3, the channel resource dynamic allocation method of the simulcast system of this embodiment includes the following steps:
step S31, the calling terminal initiates a call request on the simulcast base station.
Step S32, the simulcast system receives the call request initiated by the calling terminal, acquires the current geographic position information and/or the quality information of the uplink signal quality of the calling terminal according to the call request initiated by the calling terminal, and determines the current adapting base station of the calling terminal and the current adapting base station of the called terminal according to the current geographic position information and/or the quality information of the uplink signal quality of the calling terminal and the current geographic position information and/or the quality information of the uplink signal quality of the called terminal.
Step S33, the simulcast system inquires whether complete idle channels exist on all simulcast base stations.
And step S34, if yes, the queried idle channels are distributed on the current adaptive base station.
Step S35, if not, detecting whether other group calls exist outside the preset distance range.
If not, step S36 does not allocate the traffic channel.
Step S37, if yes, the same frequency service channels are allocated to the calling terminal and the called terminal through the current adaptive base station. The co-frequency traffic channel is the traffic channel of the other group call outside the preset distance range detected in step S35.
In step S38, the simulcast system detects the second position information of the calling terminal and/or the called terminal in real time during the call of the calling terminal and/or the called terminal, and obtains the travelling directions of the calling terminal and the called terminal.
Step S39, judging whether the second position information of the calling terminal and the called terminal meets the preset condition.
And S40, if so, adding base stations according to the travelling directions of the calling terminal and the called terminal to serve as adaptive base stations when the terminals are located at the second position information, and deleting the last base station along the reverse direction of the travelling directions of the calling terminal and the called terminal.
And step S41, if not, keeping the current adaptive base station unchanged.
In this embodiment, the simulcast system determines whether there are other "distance ranges" when there are other calls outside the preset distance range, and the distance ranges are related to specific scenes, and may be set according to different application scenes. When the initial base station allocates and judges the moving direction of the terminal, the base station can be selected through the judgment of the geographic position of the terminal and the judgment of the quality of the uplink signal, and the base station can be selected through the comprehensive (weighted) judgment by using two conditions of the geographic position and the quality of the uplink signal.
Referring to fig. 4, a dynamic diagram of base station allocation in a dynamic allocation method of channel resources in a simulcast system according to the present invention is shown.
Here, it is assumed that the simulcast system is a simulcast system on a certain railway, and members of the same talk group are all on the same train. During the running process of the train, a user on the train initiates a call.
As shown in fig. 4, when a calling terminal initiates a call request, the simulcast system determines a currently adapted base station of the talk group according to the uploaded location information of the calling terminal and the location information of the same talk group member (called terminal, or may be one or more). The location information of the calling terminal can be determined according to the geographical location information uploaded by the calling terminal or the difference of the uplink signal quality of the calling terminal in each base station, and then the current adaptive base stations are distributed to the calling terminal and the called terminal. Since the traveling direction of the terminal cannot be judged according to the initial position information, in order to ensure that the calling terminal and the called terminal can always receive signals of normal base stations, one base station can be extended from two sides of the judged initial base station. Considering that the position information of the calling terminal and the called terminal is only one coordinate and does not know the moving direction, a participating base station is added on two sides of the base station (initial base station) closest to the position of the calling terminal and the called terminal, and in addition, the calling terminal and the called terminal are possibly located at the edge position covered by the base station signal, and no signal is sent before, so that in order to ensure that the calling terminal and the called terminal are always located in the coverage of the base station, two sides of the initial base station extend one base station. As shown in fig. 4, the simulcast system determines that the initial base station is site02 according to the location information of the calling terminal and the called terminal, and simultaneously adds site01 and site03 to the participating station, that is, the currently adapted base station includes site01, site02 and site03.
The simulcast system adjusts the base stations participating in the call at any time according to the position change condition of the members of the call group in the call process. As shown in fig. 4, when the calling terminal and the called terminal have determined the traveling directions (the directions are from →) of the calling terminal and the called terminal through the position change condition simulcast system in the moving process, the system adjusts the participating base station at any time in the traveling direction, and when the calling terminal and the called terminal reach the coverage area of the site03 base station, the simulcast system adds the site04 base station into the participating station, and simultaneously removes the site01 base station.
Referring to fig. 5, a schematic diagram of base station allocation in the same direction of two groups of terminals in a channel resource dynamic allocation method of a simulcast system according to the present invention is shown.
As shown in fig. 5, the calling terminals on two trains respectively initiate different group calls, and as the base stations where the two calling terminals are located are far enough apart, the simulcast system receives the uplink signals of the control channels of the respective base stations and does not have mutual interference, and the simulcast system distributes the respective adaptive base stations in the same frequency area through the judgment and selection of the respective signal quality or geographic position. Since the distance is always far enough, there is no signal interference between two different group calls, and the simulcast system can allocate the same frequency traffic channel. In the call process, the simulcast system adjusts the base stations participating in the call and the service channels participating in the call according to the position change of the members of the call group.
Referring to fig. 6, a schematic diagram of base station allocation of two groups of terminals in opposite directions in a channel resource dynamic allocation method of a simulcast system according to the present invention is shown.
As shown in fig. 6, when the same frequency and time slot channels are multiplexed, the two vehicles should ensure a sufficient safe distance interval. The safety distance can be set as the number of the base station intervals according to parameters such as the speed of the vehicle, the base station intervals, the system call time limit and the like. For example, under the condition that the base station in the frequency area has only one channel, the safety distance interval is 5 base stations, the terminals of two opposite vehicles or the same direction respectively initiate different groups, and if the interval between the base stations where the two terminals are positioned is more than 5, the channels with the same frequency and the same time slot are allocated; if the base station interval between two terminals is less than 5, the terminal initiated later cannot establish the call.
When the terminal establishes a call, the simulcast system determines an initial allocation base station according to the position of the calling terminal and the position condition of the same talk group member. The determination of the terminal position can be determined according to the geographical position information uploaded by the terminal or the difference of the quality of the uplink signal of the terminal at each base station.
And in the call process, the system adjusts the base stations participating in the call at any time according to the position change condition of the members of the call group. The base stations participating in the group call and the channel allocation are based on the standard that normal call can be completed in the movement of the group members, and the least base stations are allocated. Compared with the common simulcast system, the base station channel resource saved by the common simulcast system can be used for other talk groups, so that the channel sharing of different talk groups in the same frequency region at the same moment is realized, and the telephone traffic of the system is greatly improved under the scale of the existing system. In addition, compared with the common simulcast system, the same carrier frequency configuration greatly reduces the working time of each channel machine on average, thereby reducing the power consumption of the system, prolonging the service life of the system and reducing the frequency interference and electromagnetic radiation possibly brought by the system to the surrounding environment.
Referring to fig. 7, a schematic structural diagram of a computer device according to the present invention is shown. As shown in fig. 7, the computer device comprises a processor for implementing the steps of the above method when executing a computer program stored in a memory.
The invention also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the above method.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made with the scope of the claims should be covered by the claims.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. The channel resource dynamic allocation method of the simulcast system is characterized by comprising the following steps:
s1, a simulcast system receives a call request sent by a calling terminal, wherein the call request carries group attribute information of the calling terminal; the step S2 is preceded by:
s2-1, acquiring group attribute information of the calling terminal according to the call request;
s2-2, judging whether the calling terminal belongs to the same-frequency simulcast channel according to the group attribute information, if so, executing the step S2;
s2, acquiring first position information of the calling terminal according to the call request;
s3, determining a current adaptive base station of the calling terminal and a current adaptive base station of the called terminal according to the first position information of the calling terminal and combining the first position information of the called terminal;
s4, the simulcast system detects whether the current adaptive base station has an idle channel or not;
s5, if the simulcast system detects that the current adaptive base station has an idle channel, the idle channel is distributed to the calling terminal and the called terminal through the current adaptive base station;
the method further comprises the steps of:
s6, if the current adaptive base station has no idle channel, detecting whether other group call services exist outside a preset distance range, and if not, not distributing the channel;
s7, if the simulcast system detects that other group call services exist outside the preset distance range, the same-frequency channels are distributed to the calling terminal and the called terminal.
2. The method for dynamically allocating channel resources of a simulcast system according to claim 1, wherein the first location information of the calling terminal is obtained through geographical location information of the calling terminal when sending a call request and/or quality information of uplink signal quality of the calling terminal when sending a call request.
3. The method for dynamically allocating channel resources of a simulcast system according to claim 1, wherein the currently adapted base station of the calling terminal includes an initial base station corresponding to the first location information of the calling terminal and two base stations adjacent to the initial base station;
the current adaptive base station of the called terminal comprises an initial base station corresponding to the first position information of the called terminal and two base stations adjacent to the initial base station.
4. The method for dynamically allocating channel resources of a simulcast system according to claim 1, wherein the method further comprises:
in the process of executing call service by the calling terminal and the called terminal:
acquiring second position information of the calling terminal and the called terminal;
determining the travelling directions of the calling terminal and the called terminal according to the second position information of the calling terminal and the called terminal;
and adjusting the current adaptive base station according to the travelling directions of the calling terminal and the called terminal.
5. The method for dynamically allocating channel resources of a simulcast system according to claim 4, wherein the determining the traveling directions of the calling terminal and the called terminal according to the second location information of the calling terminal and the called terminal includes:
and determining the travelling direction of the terminal according to the real-time geographic position and/or the quality information of the uplink signal quality of the calling terminal and the called terminal in the process of executing the call service.
6. The method for dynamically allocating channel resources of a simulcast system according to claim 4, wherein the step of adjusting the current adaptive base station according to the traveling directions of the calling terminal and the called terminal comprises:
judging whether the second position information of the calling terminal and the called terminal meets a preset condition or not;
if yes, adding base stations according to the travelling directions of the calling terminal and the called terminal to serve as the adaptive base stations when the calling terminal and the called terminal are located in the second position information, and deleting the last base station along the reverse direction of the travelling directions of the calling terminal and the called terminal.
7. The method for dynamically allocating channel resources in a simulcast system according to claim 6, wherein if the second location information of the calling terminal and the called terminal does not satisfy a preset condition, the current adaptive base station is kept unchanged.
8. The method for dynamically allocating channel resources of a simulcast system according to claim 1, wherein the calling terminal includes a first calling terminal and a second calling terminal, the call request includes a first call request and a second call request, and the first location information of the calling terminal includes location information of the first calling terminal and location information of the second calling terminal;
the step S3 is preceded by:
s3-1, judging whether the distance between the first calling terminal and the second calling terminal meets the preset distance requirement according to the position information of the first calling terminal and the position information of the second calling terminal;
s3-2, if so, respectively distributing current adaptive base stations to the first calling terminal and the second calling terminal according to the position information of the first calling terminal and the position information of the second calling terminal;
s3-3, if not, distributing the current adaptive base station to the terminal which initiates the call request.
9. Computer device, characterized in that it comprises a processor for implementing the steps of the method according to any of claims 1-8 when executing a computer program stored in a memory.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any of claims 1-8.
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| CN116017364B (en) * | 2023-03-02 | 2023-06-27 | 广东越新微系统研究院 | Simulcast signal transmission method and device |
| CN116017365B (en) * | 2023-03-02 | 2023-06-09 | 广东越新微系统研究院 | Self-adaptive wireless link simulcasting method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772167A (en) * | 2008-12-31 | 2010-07-07 | 北京信威通信技术股份有限公司 | Resource allocation method in wireless communication system and system |
| CN105050057A (en) * | 2015-06-15 | 2015-11-11 | 哈尔滨海能达科技有限公司 | Non-real-time voice calling method, trunking communication system, and control apparatus and terminal thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2302481A (en) * | 1995-06-16 | 1997-01-15 | Nokia Telecommunications Oy | Allocating channels in a mobile communications system |
| JP4901800B2 (en) * | 2008-04-14 | 2012-03-21 | 株式会社日立製作所 | Wireless terminal, base station control station, and handoff control method in wireless communication system |
| JP2017005557A (en) * | 2015-06-12 | 2017-01-05 | 株式会社オプティム | Portable user terminal, communication switching method, and portable user terminal program |
| CN107454675B (en) * | 2016-05-31 | 2020-04-24 | 北京信威通信技术股份有限公司 | Resource allocation method and device of trunking communication system |
| CN106714314B (en) * | 2017-01-03 | 2020-04-03 | 浙江华图微芯技术有限公司 | Method for allocating time slot and simulcasting base station |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101772167A (en) * | 2008-12-31 | 2010-07-07 | 北京信威通信技术股份有限公司 | Resource allocation method in wireless communication system and system |
| CN105050057A (en) * | 2015-06-15 | 2015-11-11 | 哈尔滨海能达科技有限公司 | Non-real-time voice calling method, trunking communication system, and control apparatus and terminal thereof |
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