CN110972124B - Emergency call receiving method, device and system and electronic equipment - Google Patents
Emergency call receiving method, device and system and electronic equipment Download PDFInfo
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- CN110972124B CN110972124B CN201811162622.9A CN201811162622A CN110972124B CN 110972124 B CN110972124 B CN 110972124B CN 201811162622 A CN201811162622 A CN 201811162622A CN 110972124 B CN110972124 B CN 110972124B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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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
Abstract
The invention provides an emergency call receiving method, a device, a system and an electronic device, which are characterized in that a first time slot is entered so as to receive a call on a scanned common channel at present in the first time slot to realize call communication between two communication terminals, then a second time slot belonging to an idle time slot is entered, the common channel at present is jumped to a priority channel, and when an emergency call exists on the priority channel, the emergency call is received so as to complete the timely receiving of the emergency call on the priority channel; therefore, based on the first time slot for receiving the call on the common channel and the second time slot for jumping to the priority channel to receive the emergency call, the emergency call can be received by directly switching to the priority channel in the existing call communication state, the problem that the emergency call can be received by retracing the priority channel only after the current call communication is completed is solved, and the timeliness for receiving the emergency call is effectively improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an emergency call receiving method, apparatus, and system.
Background
The communication terminal is a tool capable of two-way communication, and during the use process, the communication terminal can scan a plurality of channels one by one in order to receive the call sent by other communication terminals under different channels, or send the call to other communication terminals under different channels by scanning a plurality of channels.
At present, when a communication terminal receives a call according to a channel scanning mode, once another communication terminal initiates a call on a currently scanned channel, the scanning communication terminal stops on the currently scanned channel to receive the call, so as to implement communication between two communication terminals. However, the scanned channel is divided into a priority channel and a common channel according to the urgency degree of receiving a call, and although when a call is received by using the existing channel scanning method, the priority channel is retraced once after each common channel is scanned to ensure the timely detection of the emergency call on the priority channel, when the communication terminal performing scanning is in the existing call communication state on the common channel due to the call reception, the emergency call initiated by other communication terminals exists on the priority channel, and at this time, the communication terminal performing scanning can receive the emergency call on the priority channel only by retracing the priority channel after the current call communication is completed, thereby reducing the timeliness of receiving the emergency call.
Disclosure of Invention
In view of this, the present invention provides an emergency call receiving method, an apparatus, a system and an electronic device, which achieve the purpose of being able to switch to a priority channel to receive an emergency call in an existing call communication state, thereby improving the timeliness of receiving the emergency call.
In order to achieve the purpose, the invention provides the following technical scheme:
an emergency call receiving method comprising:
entering a first time slot and receiving a call on a common channel;
entering a second time slot, jumping from the common channel to a priority channel and detecting whether an emergency call exists on the priority channel, wherein the second time slot is an idle time slot;
and when the emergency call exists on the priority channel, receiving the emergency call on the priority channel, wherein the time slot of other communication terminals which send the emergency call to the priority channel on the priority channel is synchronous with the second time slot.
Preferably, said entering a second time slot, hopping from the normal channel to a priority channel and detecting whether an emergency call exists on the priority channel comprises:
entering the second time slot, switching the talkback frequency from the first frequency corresponding to the common channel to the second frequency corresponding to the priority channel, and detecting whether the emergency call exists on the priority channel.
Preferably, the emergency call receiving method further includes:
recording time slot synchronization time;
and when the time slot synchronization time reaches a preset time threshold, sending a time slot synchronization instruction on the priority channel, wherein the time slot synchronization instruction is used for the other communication terminals which need to initiate the emergency call to the communication terminal on the priority channel to carry out time slot synchronization with the communication terminal.
Preferably, the emergency call receiving method further includes:
re-entering the first time slot when entering the second time slot, hopping from the normal channel to a priority channel and detecting the absence of the emergency call on the priority channel.
Preferably, the emergency call receiving method further includes:
interrupting the call on the normal channel when the emergency call exists on the priority channel, and re-entering the first time slot and resuming the call on the normal channel when the emergency call communication corresponding to the emergency call ends.
An emergency call receiving apparatus comprising:
the common call receiving module is used for entering a first time slot and receiving a call on a common channel;
a channel skipping module, configured to enter a second time slot, skip from the common channel to a priority channel, and detect whether an emergency call exists on the priority channel, where the second time slot is an idle time slot;
and the emergency call receiving module is used for receiving the emergency call on the priority channel when the emergency call exists on the priority channel, wherein the time slot of other communication terminals which send the emergency call to the priority channel on the priority channel is synchronous with the second time slot.
Preferably, the channel hopping module includes:
the frequency switching unit is used for entering the second time slot and switching the talkback frequency from the first frequency corresponding to the common channel to the second frequency corresponding to the priority channel;
and the emergency call detection unit is used for detecting whether the emergency call exists on the priority channel.
Preferably, the emergency call receiving apparatus further includes:
the time recording module is used for recording the time slot synchronization time after the common call receiving module enters a first time slot and receives a call on a common channel;
a sending module, configured to send a time slot synchronization instruction on the priority channel when the time slot synchronization time reaches a preset time threshold, where the time slot synchronization instruction is used for the other communication terminals that want to initiate the emergency call to the communication terminal on the priority channel to perform time slot synchronization with the communication terminal.
Preferably, the emergency call receiving apparatus further includes:
and the time slot returning module is used for reentering the first time slot when the channel jumping module enters a second time slot, jumps to a priority channel from the common channel and the emergency call does not exist on the priority channel.
Preferably, the emergency call receiving apparatus further includes:
a call interruption module for interrupting a call on the common channel after the emergency call reception module receives the emergency call on the priority channel;
and the call recovery module is used for re-entering the first time slot and recovering the call on the common channel when the call interruption module interrupts the call on the common channel and the communication of the emergency call corresponding to the emergency call is finished.
An emergency call receiving system comprising:
a first communication terminal, a second communication terminal and a third communication terminal;
the first communication terminal is configured to enter a first time slot, receive a call sent by the second communication terminal on a common channel, enter a second time slot, jump from the common channel to a priority channel, and detect whether an emergency call exists on the priority channel, where the second time slot is an idle time slot, receive the emergency call on the priority channel when the emergency call sent by the third communication terminal exists on the priority channel, and a time slot of the third communication terminal on the priority channel is synchronized with a second time slot of the first communication terminal on the priority channel;
the second communication terminal is used for sending the call to the common channel;
the third communication terminal is configured to send the emergency call to the priority channel.
Preferably, the first communication terminal is further configured to:
after entering the first time slot and receiving the call sent by the second communication terminal through the common channel, recording time slot synchronization time, and sending a time slot synchronization instruction to the third communication terminal when the time slot synchronization time reaches a preset time threshold;
the third communication terminal is further configured to receive the time slot synchronization instruction when the time slot of the third communication terminal on the priority channel is not synchronized with the second time slot of the first communication terminal on the priority channel, generate a periodic interval timing signal according to the time slot synchronization instruction, and perform synchronization adjustment on the time slot of the third communication terminal on the priority channel based on the periodic interval timing signal.
An electronic device comprising a memory and a processor;
the memory is used for storing programs;
the processor is used for processing the program; wherein the program includes:
the method comprises the steps of entering a first time slot, receiving a call on a common channel, entering a second time slot, jumping to a priority channel from the common channel and detecting whether an emergency call exists on the priority channel, wherein the second time slot is an idle time slot, receiving the emergency call on the priority channel when the emergency call exists on the priority channel, and sending the emergency call to other communication terminals of the priority channel, wherein the time slot of the other communication terminals on the priority channel is synchronous with the second time slot.
It can be known from the above technical solutions that, compared with the prior art, the present invention provides an emergency call receiving method, apparatus and system, by entering a first time slot, so as to receive a call on a currently scanned common channel in the first time slot, to implement call communication between two communication terminals, and then entering a second time slot belonging to an idle time slot, to jump from the currently located common channel to a priority channel, and when there is an emergency call on the priority channel, to receive the emergency call, so as to complete timely receiving of the emergency call on the priority channel; therefore, based on the first time slot for receiving the call on the common channel and the second time slot for jumping to the priority channel to receive the emergency call, the emergency call can be received by directly switching to the priority channel in the existing call communication state, the problem that the emergency call can be received by retracing the priority channel only after the current call communication is completed is solved, and the timeliness for receiving the emergency call is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for receiving an emergency call according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first timeslot according to an embodiment of the present invention;
fig. 3 is a schematic view of a time slot synchronization foreground according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a scene after time slot synchronization according to an embodiment of the present invention;
fig. 5 is a schematic view of a scenario of an emergency call receiving method according to an embodiment of the present invention;
fig. 6 is a flowchart of another emergency call receiving method according to an embodiment of the present invention;
fig. 7 is a flowchart of another emergency call receiving method according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an emergency call receiving device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a channel hopping module according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another emergency call receiving device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another emergency call receiving device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another emergency call receiving device according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of another emergency call receiving system according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
The embodiment of the invention discloses an emergency call receiving method, which can be applied to a communication terminal supporting Time Division Multiple Access (TDMA), and please refer to the attached figure 1, wherein the method specifically comprises the following steps:
s101: entering a first time slot and receiving a call on a common channel;
in this embodiment, as an example, the communication terminal may use a DMR (Digital Mobile Radio) protocol to perform communication, where each burst in a Time Division Multiple Access (TDMA) scheme used by the protocol has two time slots, and the first time slot is one of the time slots in each burst in the time division multiple access scheme used by the DMR protocol, and the first time slot is 30ms long and has a guard time of 2.5 ms. The specific structure of the first time slot is shown in fig. 2, the S domain is a synchronization sequence or embedded signaling, the P domain is a carried payload, i.e., call communication related data, and the C domain is a 1.25ms guard interval.
When entering the first time slot, the call sent by other communication terminal can be received from the currently scanned channel, i.e. the common channel, within the duration of 30ms of the first time slot.
S102: entering a second time slot, jumping from the common channel to a priority channel and detecting whether an emergency call exists on the priority channel, wherein the second time slot is an idle time slot;
specifically, the second time slot is another time slot except the first time slot in a burst in a time division multiplexing access mode used by the DMR protocol, and the second time slot is 30ms long, wherein there is a guard time of 2.5 ms. The specific structure of the second time slot is the same as that of the first time slot, but the second time slot belongs to an idle time slot, i.e. the P domain in fig. 2 does not carry a load, thereby avoiding affecting a call on a common channel received in the first time slot during the channel hopping process.
It should be noted that, when the time for entering the first time slot reaches the duration of the first time slot by 30ms, the second time slot is automatically entered.
S103: when the emergency call exists on the priority channel, receiving the emergency call on the priority channel, wherein the time slot of other communication terminals which send the emergency call to the priority channel on the priority channel is synchronous with the second time slot;
specifically, after the second time slot is automatically entered, the channel hopping operation and the emergency call receiving operation may be completed within 30ms of the duration of the second time slot.
The execution subject of the embodiment of the present invention is a communication terminal that is performing channel scanning, and performs emergency call communication on a priority channel with another communication terminal that transmits an emergency call to the priority channel.
In order to ensure that the communication terminal performing the channel scan, which is the main execution body of the embodiment of the present invention, completely receives the emergency call in the second time slot, it is necessary to synchronize the time slot on the priority channel of the other communication terminal that transmits the emergency call to the priority channel with the second time slot. The method for synchronizing the two time slots may be to send a time slot synchronization command to the other communication terminal that sends the emergency call to the priority channel, so that the other communication terminal that sends the emergency call to the priority channel generates the periodic interval timing signal to adjust the time length of the time slot.
The following illustrates the results before and after synchronization of two slots:
fig. 3 is A schematic view of A scenario before two time slots are synchronized, after A communication terminal "R- A" performing channel scanning enters A second time slot, the communication terminal "R- A" jumps from A normal channel "CH 2" to A priority channel "CH 1", but at this time, A communication terminal "R-B" transmitting an emergency call to the priority channel is different from A time slot of the communication terminal "R- A" on the priority channel "CH 1", so that the communication terminal "R- A" cannot completely receive the emergency call in the second time slot.
Fig. 4 is A schematic diagram of A scenario after two time slots are synchronized, after A communication terminal "R- A" performing channel scanning sends A time slot synchronization instruction to A communication terminal "R-B" sending an emergency call to A priority channel, the communication terminal "R-B" can be made to generate A 60ms periodic interval timing signal, so as to automatically adjust the time length of the time slot, and the time slots of "R- A" and "R-B" on the priority channel "CH 1" are kept consistent, so that the emergency call on the priority channel "CH 1" can be completely received after "R- A" enters A second time slot.
The emergency call receiving method disclosed by the embodiment of the invention is characterized in that a first time slot is entered so as to receive a call on a currently scanned common channel at the first time slot to realize call communication between two communication terminals, then a second time slot belonging to an idle time slot is entered, the current common channel is switched to a priority channel, and when an emergency call exists on the priority channel, the emergency call is received so as to complete the timely receiving of the emergency call on the priority channel; therefore, based on the first time slot for receiving the call on the common channel and the second time slot for jumping to the priority channel to receive the emergency call, the emergency call can be received by directly switching to the priority channel in the existing call communication state, the problem that the emergency call can be received by retracing the priority channel only after the current call communication is completed is solved, and the timeliness for receiving the emergency call is effectively improved.
An application scenario is illustrated below with reference to fig. 5 for an emergency call receiving method provided by the present invention:
the communication terminal 'R-A' which is carrying out channel scanning receives A call on A common channel 'CH 2' in A first time slot, then 'R-A' enters A second time slot and jumps from the common channel 'CH 2' to A priority channel 'CH 1', and further receives an emergency call sent by the communication terminal 'R-B' which sends the emergency call to the priority channel from the priority channel 'CH 1', wherein, the 'R-A' and the 'R-B' are synchronized on the time slot of the priority channel 'CH 1'.
In the embodiment of the invention, through the DMR double time slot characteristic, when the first time slot receives the call on the common channel, the second time slot is used for carrying out channel skipping so as to receive the emergency call on the priority channel, thereby realizing the purpose of preferentially switching to the emergency call with higher priority under the existing call communication state and shortening the receiving time of the emergency call.
On the basis of the embodiment shown in fig. 1, another emergency call receiving method is disclosed in the embodiment of the present invention, referring to fig. 6, and the method specifically includes the following steps:
s201: and entering a first time slot and receiving a call on a common channel.
S202: entering a second time slot, switching the talkback frequency from a first frequency corresponding to the common channel to a second frequency corresponding to the priority channel, and detecting whether an emergency call exists on the priority channel;
specifically, the talkback frequency refers to a frequency at which the communication terminal performing channel scanning is currently located in the execution subject according to the embodiment of the present invention. The talkback frequency is switched in frequency, so that the talkback frequency is switched from the first frequency of the common channel to the second frequency of the priority channel, and the aim of jumping from the common channel to the priority channel is fulfilled.
S203: when there is an emergency call on the priority channel, receiving the emergency call on the priority channel, wherein the time slot on the priority channel of the other communication terminal transmitting the emergency call to the priority channel is synchronized with the second time slot.
According to the emergency call receiving method disclosed by the embodiment of the invention, after the second time slot is entered, the talkback frequency is switched from the first frequency to the second frequency, so that the channel jump between the common channel and the priority channel is realized, and the emergency call receiving speed is effectively accelerated.
On the basis of the embodiment shown in fig. 1, another emergency call receiving method is disclosed in the embodiment of the present invention, referring to fig. 7, and the method specifically includes the following steps:
s301: and entering a first time slot and receiving a call on a common channel.
S302: recording the time slot synchronization time, and executing S304;
specifically, the time slot synchronization time is a time value of a time slot on the priority channel, which is synchronized with the second time slot by the communication terminal that sends the emergency call to the priority channel after entering the first time slot and receiving the call on the normal channel.
S303: enters a second slot, jumps from the normal channel to the priority channel and detects whether there is an emergency call on the priority channel, wherein the second slot is a free slot, and S305 is performed.
It should be noted that the execution sequence of S302 and S303 is not limited, and S302 and S303 may be executed after S301.
S304: and when the time slot synchronization time reaches a preset time threshold, sending a time slot synchronization instruction on the priority channel, wherein the time slot synchronization instruction is used for other communication terminals which need to initiate emergency calls to the communication terminal on the priority channel to carry out time slot synchronization with the communication terminal.
Specifically, the preset time threshold may be a preset time value, such as 4.5 minutes. And when the time slot synchronization time reaches a preset time threshold, sending a time slot synchronization instruction at a fixed time so that other communication terminals sending emergency calls to the priority channel adjust the time slots of the other communication terminals on the priority channel at a fixed time to keep the time slots consistent with the second time slot all the time, and further keeping the time slot synchronization between the execution main body, namely the communication terminal which is scanning the channel, and the other communication terminals.
It should be noted that, due to an error of hardware of the communication terminal, the generated periodic interval timing signals are not completely the same each time the other communication terminals that send the emergency call to the priority channel receive the slot synchronization instruction, for example, after receiving the slot synchronization instruction for the first time, a 60ms periodic interval timing signal is generated, and after receiving the slot synchronization instruction for the second time, a 30ms periodic interval timing signal is generated. But the generated periodic interval timing signals are all integer multiples of 30 ms.
S305: when there is an emergency call on the priority channel, receiving the emergency call on the priority channel, wherein the time slot on the priority channel of the other communication terminal transmitting the emergency call to the priority channel is synchronized with the second time slot.
The emergency call receiving method disclosed by the embodiment of the invention records the time slot synchronization time after entering the first time slot and receiving the call on the common channel, and sends the time slot synchronization instruction to other communication terminals sending the emergency call to the priority channel when the recorded time slot synchronization time reaches the preset time threshold value, so that the other communication terminals sending the emergency call to the priority channel regularly adjust the time slot of the other communication terminals in the priority channel, and the other communication terminals are always synchronous with the second time slot, thereby ensuring the data integrity of the emergency call received on the priority channel.
Optionally, in the embodiment corresponding to fig. 1, S102: entering a second time slot, after jumping from the common channel to the priority channel and detecting whether an emergency call exists on the priority channel, the method further comprises the following steps:
the first time slot is re-entered when there is no emergency call on the priority channel.
It should be noted that, when there is no emergency call on the priority channel, the communication terminal performing the main body-performing channel scanning according to the embodiment of the present invention automatically returns to the first time slot after the time when the communication terminal enters the second time slot reaches the time duration of the second time slot by 30ms, and during this process, the call communication generated by receiving a call on the common channel is not interrupted, thereby avoiding adverse effects on the currently existing call communication due to channel hopping.
In the embodiment of the invention, when the second time slot is entered, the common channel is switched to the priority channel, and the emergency call does not exist on the priority channel, the first time slot is entered again, so that the problem that the channel jump has adverse effect on the current existing call communication is effectively avoided on the premise that the existing call communication generated by receiving the call on the common communication channel is not interrupted.
Optionally, in the embodiment corresponding to fig. 1, S103: when there is an emergency call on the priority channel, after receiving the emergency call on the priority channel, the method further includes:
the call on the normal channel is interrupted and when the emergency call communication corresponding to the emergency call ends, the first time slot is re-entered and the call on the normal channel is resumed.
It should be noted that, when the emergency call communication corresponding to the emergency call is ended, the communication terminal performing the channel scanning according to the embodiment of the present invention re-enters the first time slot after the time when the communication terminal enters the second time slot reaches the duration of the second time slot for 30ms, and at this time, the call on the normal channel, which was interrupted by receiving the emergency call before the communication terminal automatically recovers, so as to continue the call communication with another communication terminal sending the call to the normal channel.
In the embodiment of the invention, the call on the common channel is interrupted, and the emergency call communication corresponding to the emergency call is ended, the first time slot is re-entered, and the interrupted call on the common channel is recovered, so that the existing call communication can be re-recovered on the basis of finishing the emergency call on the priority channel, the communication integrity of the call on the common channel is ensured, and the communication quality and the user experience are improved.
The embodiment of the invention discloses an emergency call receiving device, please refer to fig. 8, which includes:
a common call receiving module 401, configured to enter a first time slot and receive a call on a common channel;
a channel skipping module 402, configured to enter a second time slot, skip from a common channel to a priority channel, and detect whether an emergency call exists on the priority channel, where the second time slot is an idle time slot;
an emergency call receiving module 403, configured to receive an emergency call on the priority channel when there is an emergency call on the priority channel, where a time slot on the priority channel of another communication terminal that transmits the emergency call to the priority channel is synchronized with the second time slot.
The emergency call receiving device disclosed by the embodiment of the invention enters a first time slot through a common call receiving module 401 so as to receive a call on a scanned common channel at present in the first time slot and realize call communication between two communication terminals, then a channel skipping module 402 skips to a priority channel from the common channel at present when entering a second time slot belonging to an idle time slot, and receives the emergency call by an emergency call receiving module 403 when the emergency call exists on the priority channel so as to complete the timely receiving of the emergency call on the priority channel; therefore, based on the first time slot for receiving the call on the common channel and the second time slot for jumping to the priority channel to receive the emergency call, the emergency call can be received by directly switching to the priority channel in the existing call communication state, the problem that the emergency call can be received by retracing the priority channel only after the current call communication is completed is solved, and the timeliness for receiving the emergency call is effectively improved.
Please refer to a method flowchart corresponding to fig. 1 for the working process of each module provided in the embodiment of the present invention, and detailed description of the working process is omitted.
Referring to fig. 9, the channel hopping module 402 in the embodiment corresponding to fig. 8 specifically includes:
a frequency switching unit 4021, configured to enter the second time slot, and switch the intercom frequency from the first frequency corresponding to the common channel to the second frequency corresponding to the priority channel;
an emergency call detection unit 4022, configured to detect whether the emergency call exists on the priority channel.
In the embodiment of the present invention, after entering the second time slot, the frequency switching unit 4021 switches the intercom frequency from the first frequency to the second frequency, thereby implementing channel hopping between the common channel and the priority channel, and effectively accelerating the receiving speed of the emergency call.
Please refer to a method flowchart corresponding to fig. 6 for the working process of each module provided in the embodiment of the present invention, and detailed description of the working process is omitted.
On the basis of the embodiment shown in fig. 8, another emergency call receiving device is disclosed in the embodiment of the present invention, referring to fig. 10, which includes:
a common call receiving module 401, a channel skipping module 402, an emergency call receiving module 403, a time recording module 404 and a sending module 405;
the time recording module 404 is configured to record a time slot synchronization time after the ordinary call receiving module 401 enters the first time slot and receives a call on the ordinary channel;
a sending module 405, configured to send a timeslot synchronization instruction on the priority channel when the timeslot synchronization time reaches a preset time threshold, where the timeslot synchronization instruction is used by another communication terminal that is to initiate an emergency call to the communication terminal on the priority channel to perform timeslot synchronization with the communication terminal.
According to the emergency call receiving device disclosed by the embodiment of the invention, after the ordinary call receiving module 401 enters the first time slot and receives the call on the ordinary channel, the time recording module 404 records the time slot synchronization time, and when the recorded time slot synchronization time reaches the preset time threshold, the sending module 405 sends the time slot synchronization instruction to other communication terminals sending the emergency call to the priority channel, so that the other communication terminals sending the emergency call to the priority channel regularly adjust the time slot of the other communication terminals in the priority channel, the other communication terminals and the second time slot are always synchronous, and the data integrity of the emergency call received on the priority channel is further ensured.
Please refer to a method flowchart corresponding to fig. 7 for the working process of each module provided in the embodiment of the present invention, and detailed description of the working process is omitted.
Optionally, on the basis of the embodiment shown in fig. 8, another emergency call receiving device is disclosed in the embodiment of the present invention, referring to fig. 11, including:
a common call receiving module 401, a channel skipping module 402, an emergency call receiving module 403 and a time slot returning module 406;
wherein, the time slot returning module 406 is configured to re-enter the first time slot when the channel hopping module 402 enters the second time slot, hops from the normal channel to the priority channel, and there is no emergency call on the priority channel.
In the embodiment of the invention, when the time slot returning module 406 enters the second time slot and jumps to the priority channel from the common channel, and the emergency call does not exist on the priority channel, the time slot returning module reenters the first time slot, thereby effectively avoiding the problem that the channel jump has adverse effect on the current existing call communication on the premise of not interrupting the existing call communication generated by receiving the call on the common communication channel.
Optionally, on the basis of the embodiment shown in fig. 8, another emergency call receiving device is disclosed in the embodiment of the present invention, referring to fig. 12, including:
a normal call receiving module 401, a channel skipping module 402, an emergency call receiving module 403, a call interruption module 407 and a call recovery module 408;
wherein, the call interruption module 407 is configured to interrupt the call on the normal channel after the emergency call receiving module 403 receives the emergency call on the priority channel;
a call resuming module 408, configured to re-enter the first time slot and resume the call on the normal channel when the call interrupting module 407 interrupts the call on the normal channel and the communication of the emergency call corresponding to the emergency call is ended.
In the embodiment of the present invention, the call recovery module 408 re-enters the first time slot and recovers the interrupted call on the common channel when the call on the common channel is interrupted and the emergency call communication corresponding to the emergency call is ended, so that the existing call communication can be recovered on the basis of completing the emergency call on the priority channel, thereby ensuring the integrity of the call communication on the common channel and improving the communication quality and the user experience.
The embodiment of the invention discloses an emergency call receiving system, please refer to fig. 13, which includes:
a first communication terminal 501, a second communication terminal 502, and a third communication terminal 503;
a first communication terminal 501, configured to enter a first time slot, receive a call sent by a second communication terminal 502 on a common channel, enter a second time slot, jump from the common channel to a priority channel, and detect whether an emergency call exists on the priority channel, where the second time slot is an idle time slot, receive the emergency call on the priority channel when the emergency call exists on the priority channel and is sent by a third communication terminal 503, and a time slot of the third communication terminal 503 on the priority channel is synchronized with a second time slot of the first communication terminal 501 on the priority channel;
a second communication terminal 502 for sending a call to a general communication channel;
a third communication terminal 503 for sending the emergency call to the priority channel.
The emergency call receiving system disclosed by the embodiment of the invention enters a first time slot through a first communication terminal 501 so as to receive a call sent by a second communication terminal 502 on a scanned common channel at present in the first time slot, realize common call communication between the first communication terminal 501 and the second communication terminal 502, then the first communication terminal 501 enters a second time slot belonging to an idle time slot, jump to a priority channel from the common channel at present, and receive the emergency call when the emergency call sent by a third communication terminal 503 exists on the priority channel, so as to complete timely receiving of the emergency call on the priority channel; as can be seen, the first communication terminal 501 can directly switch to the priority channel to receive the emergency call sent by the third communication terminal 503 in the existing call communication state established with the second communication terminal 502 based on the first timeslot for receiving the call on the common channel and the second timeslot for jumping to the priority channel to receive the emergency call, which solves the problem that the first communication terminal 501 can receive the emergency call through the retrace priority channel only after the current call communication between the first communication terminal 501 and the second communication terminal 502 is completed, and effectively improves the timeliness of receiving the emergency call.
Please refer to the method flowchart corresponding to fig. 1 for the working process of each communication terminal provided in the embodiment of the present invention, and detailed description of the working process is omitted.
Optionally, the first communication terminal 501 in the embodiment corresponding to fig. 13 is further configured to:
after entering the first time slot and receiving the call sent by the second communication terminal 502 in the common channel, recording the time slot synchronization time, and sending a time slot synchronization instruction to the third communication terminal 503 when the time slot synchronization time reaches a preset time threshold;
the third communication terminal 503 is further configured to receive a time slot synchronization instruction when the time slot of the third communication terminal 503 on the priority channel is not synchronized with the second time slot of the first communication terminal 501 on the priority channel, generate a periodic interval timing signal according to the time slot synchronization instruction, and perform synchronization adjustment on the time slot of the third communication terminal 503 on the priority channel based on the periodic interval timing signal.
It should be noted that, each time the third communication terminal 503 receives the slot synchronization command from the first communication terminal 501, the generated cycle interval timing signals are not completely the same, and for example, after receiving the slot synchronization command for the first time, the cycle interval timing signal of 60ms is generated, and after receiving the slot synchronization command for the second time, the cycle interval timing signal of 30ms is generated. But the generated periodic interval timing signals are all integer multiples of 30 ms.
In the embodiment of the present invention, after the first communication terminal 501 enters the first time slot and receives a call on the common channel, the time slot synchronization time is recorded, and when the recorded time slot synchronization time reaches the preset time threshold, a time slot synchronization instruction is sent to the third communication terminal 503, so that the third communication terminal 503 regularly adjusts the time slot of the third communication terminal on the priority channel, and keeps the time slot synchronized with the second time slot all the time, thereby ensuring the data integrity of the emergency call received by the first communication terminal 501 on the priority channel.
Please refer to a method flowchart corresponding to fig. 7 for the working process of each communication terminal provided in the embodiment of the present invention, and detailed description of the working process is omitted.
An embodiment of the present invention discloses an electronic device, please refer to fig. 14, including: a memory 601 and a processor 602;
a memory 601 for storing programs;
a processor 602 for processing programs; wherein, the procedure includes:
the method comprises the steps of entering a first time slot, receiving a call on a common channel, entering a second time slot, jumping to a priority channel from the common channel and detecting whether an emergency call exists on the priority channel, wherein the second time slot is an idle time slot, receiving the emergency call on the priority channel when the emergency call exists on the priority channel, and sending the emergency call to other communication terminals of the priority channel, wherein the time slot of the other communication terminals on the priority channel is synchronous with the second time slot.
It should be noted that the electronic device in the embodiment of the present invention may be a communication terminal, or may be a device installed on the communication terminal.
The electronic device disclosed in the embodiment of the present invention includes a memory 601 and a processor 602, where the processor 602 is configured to process a program stored in the memory 601, where the program stored in the memory 601 is: entering a first time slot, receiving a call on a common channel, entering a second time slot, jumping to a priority channel from the common channel and detecting whether an emergency call exists on the priority channel, and receiving the emergency call on the priority channel when the emergency call exists on the priority channel; therefore, based on the first time slot for receiving the call on the common channel and the second time slot for jumping to the priority channel to receive the emergency call, the emergency call can be received by directly switching to the priority channel in the existing call communication state, the problem that the emergency call can be received by retracing the priority channel only after the current call communication is completed is solved, and the timeliness for receiving the emergency call is effectively improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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 (11)
1. An emergency call receiving method, wherein the method is adapted to a communication terminal supporting time division multiplexing, the method comprising:
entering a first time slot and receiving a call on a common channel;
when the first time slot is finished, automatically entering a second time slot, switching the talkback frequency from a first frequency corresponding to the common channel to a second frequency corresponding to the priority channel, and detecting whether the emergency call exists on the priority channel, wherein the second time slot is an idle time slot;
and when the emergency call exists on the priority channel, receiving the emergency call on the priority channel, and directly switching to the priority channel to receive the emergency call under the existing call communication state, wherein the time slot of other communication terminals which send the emergency call to the priority channel on the priority channel is synchronous with the second time slot.
2. The emergency call receiving method according to claim 1, wherein the emergency call receiving method further comprises:
recording time slot synchronization time;
and when the time slot synchronization time reaches a preset time threshold, sending a time slot synchronization instruction on the priority channel, wherein the time slot synchronization instruction is used for the other communication terminals which need to initiate the emergency call to the communication terminal on the priority channel to carry out time slot synchronization with the communication terminal.
3. The emergency call receiving method according to claim 1, wherein the emergency call receiving method further comprises:
re-entering the first time slot when entering the second time slot, hopping from the normal channel to a priority channel and detecting the absence of the emergency call on the priority channel.
4. The emergency call receiving method according to claim 1, wherein the emergency call receiving method further comprises:
interrupting the call on the normal channel when the emergency call exists on the priority channel, and re-entering the first time slot and resuming the call on the normal channel when the emergency call communication corresponding to the emergency call ends.
5. An emergency call receiving apparatus, wherein the apparatus supports time division multiplexing, comprising:
the common call receiving module is used for entering a first time slot and receiving a call on a common channel;
the channel skipping module is used for automatically entering a second time slot after the first time slot is finished, skipping from the common channel to a priority channel and detecting whether an emergency call exists on the priority channel, wherein the second time slot is an idle time slot;
an emergency call receiving module, configured to receive the emergency call on the priority channel when the emergency call exists on the priority channel, so as to directly switch to the priority channel to receive the emergency call in an existing call communication state, where a time slot on the priority channel of another communication terminal that sends the emergency call to the priority channel is synchronized with the second time slot;
wherein the channel hopping module comprises:
the frequency switching unit is used for entering the second time slot and switching the talkback frequency from the first frequency corresponding to the common channel to the second frequency corresponding to the priority channel;
and the emergency call detection unit is used for detecting whether the emergency call exists on the priority channel.
6. The emergency call receiving apparatus according to claim 5, further comprising:
the time recording module is used for recording the time slot synchronization time after the common call receiving module enters a first time slot and receives a call on a common channel;
a sending module, configured to send a time slot synchronization instruction on the priority channel when the time slot synchronization time reaches a preset time threshold, where the time slot synchronization instruction is used for the other communication terminals that want to initiate the emergency call to the communication terminal on the priority channel to perform time slot synchronization with the communication terminal.
7. The emergency call receiving apparatus according to claim 5, further comprising:
and the time slot returning module is used for reentering the first time slot when the channel jumping module enters a second time slot, jumps to a priority channel from the common channel and the emergency call does not exist on the priority channel.
8. The emergency call receiving apparatus according to claim 5, further comprising:
a call interruption module for interrupting a call on the common channel after the emergency call reception module receives the emergency call on the priority channel;
and the call recovery module is used for re-entering the first time slot and recovering the call on the common channel when the call interruption module interrupts the call on the common channel and the communication of the emergency call corresponding to the emergency call is finished.
9. An emergency call receiving system, comprising:
a first communication terminal, a second communication terminal and a third communication terminal;
the first communication terminal is used for entering a first time slot, receiving a call sent by the second communication terminal on a common channel, automatically entering a second time slot after the first time slot is ended, switching an intercom frequency from a first frequency corresponding to the common channel to a second frequency corresponding to the priority channel, and detecting whether the emergency call exists on the priority channel, wherein the second time slot is an idle time slot, receiving the emergency call on the priority channel when the emergency call sent by the third communication terminal exists on the priority channel, so as to directly switch to the priority channel to receive the emergency call in an existing call communication state, and the time slot of the third communication terminal on the priority channel is synchronous with the second time slot of the first communication terminal on the priority channel;
the second communication terminal is used for sending the call to the common channel;
the third communication terminal is configured to send the emergency call to the priority channel.
10. The emergency call receiving system according to claim 9, wherein the first communication terminal is further configured to:
after entering the first time slot and receiving the call sent by the second communication terminal through the common channel, recording time slot synchronization time, and sending a time slot synchronization instruction to the third communication terminal when the time slot synchronization time reaches a preset time threshold;
the third communication terminal is further configured to receive the time slot synchronization instruction when the time slot of the third communication terminal on the priority channel is not synchronized with the second time slot of the first communication terminal on the priority channel, generate a periodic interval timing signal according to the time slot synchronization instruction, and perform synchronization adjustment on the time slot of the third communication terminal on the priority channel based on the periodic interval timing signal.
11. An electronic device comprising a memory and a processor;
the memory is used for storing programs;
the processor is used for processing the program; wherein the program includes:
the method comprises the steps of entering a first time slot, receiving a call on a common channel, automatically entering a second time slot after the first time slot is finished, switching a talkback frequency from a first frequency corresponding to the common channel to a second frequency corresponding to a priority channel, and detecting whether the emergency call exists on the priority channel, wherein the second time slot is an idle time slot, receiving the emergency call on the priority channel when the emergency call exists on the priority channel, so that the emergency call is directly switched to the priority channel to receive the emergency call in an existing call communication state, wherein the time slot of other communication terminals which send the emergency call to the priority channel on the priority channel is synchronous with the second time slot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162622.9A CN110972124B (en) | 2018-09-30 | 2018-09-30 | Emergency call receiving method, device and system and electronic equipment |
| PCT/CN2018/121416 WO2020062611A1 (en) | 2018-09-30 | 2018-12-17 | Emergency call receiving method, device, system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811162622.9A CN110972124B (en) | 2018-09-30 | 2018-09-30 | Emergency call receiving method, device and system and electronic equipment |
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| CN110972124A CN110972124A (en) | 2020-04-07 |
| CN110972124B true CN110972124B (en) | 2021-11-02 |
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| CN113225723B (en) * | 2021-04-02 | 2023-03-17 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Method, system and medium for accelerating establishment of emergency service of 5G terminal |
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| CN110972124A (en) | 2020-04-07 |
| WO2020062611A1 (en) | 2020-04-02 |
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