CN111385783A - Non-clamping emergency communication method, terminal and computer readable storage medium - Google Patents
Non-clamping emergency communication method, terminal and computer readable storage medium Download PDFInfo
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- CN111385783A CN111385783A CN201811621026.2A CN201811621026A CN111385783A CN 111385783 A CN111385783 A CN 111385783A CN 201811621026 A CN201811621026 A CN 201811621026A CN 111385783 A CN111385783 A CN 111385783A
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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
- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/50—Connection management for emergency connections
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Abstract
The embodiment of the invention discloses a card-free urgent communication method, a terminal and a readable storage medium, wherein the method comprises the following steps: when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell; receiving at least one system information of the at least one cell; determining a candidate cell supporting the non-jamming emergency communication according to the at least one piece of system information; selecting a target cell with the best communication capability from the candidate cells based on the parameter information of the at least one cell; and performing non-jamming emergency communication in the target cell.
Description
Technical Field
The present invention relates to the field of non-card emergency communication technologies, and in particular, to a non-card emergency communication method, a terminal, and a computer-readable storage medium.
Background
The emergency call function is an important function which is required to be supported by the current mobile phone products, and is used for dialing various emergency service stations such as fire alarms, bandit alarms and medical first-aid in emergency and distress situations so as to obtain the emergency recourse.
At present, mobile terminals such as mobile phones generally support multiple network systems of four-Generation mobile communication technology (4G)/three-Generation mobile communication technology (3G)/two-Generation mobile communication technology (2G) and voice services based on an address Multimedia Subsystem (Ip Multimedia Subsystem, IMS), when there is no card emergency communication, emergency calls are preferentially selected based on the IMS network, and when the IMS network does not support the card emergency communication, cells of other systems are selected to initiate emergency calls, which easily results in a long call-through time and a call-through rate may be reduced due to the influence of complex signaling.
In addition, the no-card emergency communication function is in the protocol of the international standardization organization (3rd Generation partnership project, 3GPP), which allows the operator network not to support the function, if the mobile phone is not plugged in and powered on, and the cell on which the mobile phone is camped does not support the emergency call function, when the emergency call is made, the mobile phone interface will briefly display "dialing", but will automatically hang up soon, and display "call end", which will result in that the mobile phone cannot be connected to the emergency service station, and the call success rate is reduced.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention desirably provide a method, a terminal, and a computer-readable storage medium for non-card emergency communication, which can improve a call completing rate of the non-card emergency communication.
The technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for card-free emergency communication, where the method includes:
when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell;
receiving at least one system information of the at least one cell;
determining a candidate cell supporting the non-jamming emergency communication according to the at least one piece of system information;
selecting a target cell with the best communication capability from the candidate cells based on the parameter information of the at least one cell;
and performing non-jamming emergency communication in the target cell.
In the above scheme, the acquiring parameter information of at least one cell when the mobile terminal is in a card-free state and is started up includes:
when the device is in a card-free state and starts up, sending a measurement request to network side equipment;
receiving adjacent cell information sent by the network side equipment in response to the measurement request;
and measuring the at least one adjacent cell according to the adjacent cell information to obtain the parameter information of the at least one cell.
In the foregoing solution, the determining a candidate cell supporting no-jamming communication according to the at least one piece of system information includes:
judging whether the system message contains preset parameters or not according to the at least one system message;
when the system message contains the preset parameters, determining that the cell corresponding to the system message is a cell supporting the communication without the card emergency;
when the system message does not contain the preset parameters, determining that the cell corresponding to the system message is a cell which does not support the communication without the card emergency;
determining the cell supporting the jamming-free emergency communication as the candidate cell.
In the foregoing solution, the parameter information of the cell is used to characterize communication capabilities of the cells, and the selecting a target cell with the best communication capability from the candidate cells based on the parameter information of the at least one cell includes:
based on the parameter information corresponding to the candidate cells, carrying out priority ranking according to the communication capacity;
and selecting the cell with the highest priority and the best communication capability as the target cell from the priority sequence.
In the above solution, after the obtaining parameter information of at least one cell and before the determining, based on the at least one system information, a candidate cell supporting no-jamming communication, the method further includes:
and based on the cell parameter information, carrying out priority ordering according to the communication capacity.
Correspondingly, the selecting a target cell with the best communication capability from the candidate cells based on the parameter information comprises:
updating the priority ranking according to the candidate cell;
and selecting the cell with the highest communication capability as the target cell from the updated priority list.
In the above scheme, the parameter information includes: signal strength and signal quality, the communication capability comprises: the signal strength and the signal quality are prioritized according to the communication capability based on the parameter information, and the method includes:
when the signal intensity meets a preset signal threshold, carrying out priority sequencing according to the signal intensity;
and when the signal strength does not meet the preset signal threshold, carrying out priority sequencing according to the signal quality.
In the above scheme, the performing the non-jamming emergency communication in the target cell includes:
receiving a non-card urgent communication request;
and responding to the non-chucking emergency communication request, and performing non-chucking emergency communication in the target cell.
In the foregoing solution, after performing the no-chuck emergency communication in the target cell, the method further includes:
when receiving the message of the target cell calling failure, selecting a substitute cell with second best communication capability from the candidate cells;
and performing non-jamming emergency communication in the alternative cell.
In the above solution, when receiving the message that the target cell call fails, selecting a candidate cell with the second best communication capability from the candidate cells includes:
when receiving a call failure message returned by the target cell, acquiring a first Public Land Mobile Network (PLMN) corresponding to the target cell;
acquiring a second PLMN corresponding to the replacement cell with the second best communication capability;
and when the first PLMN and the second PLMN are determined to be different, selecting the cell corresponding to the second PLMN as the alternative cell.
In a second aspect, an embodiment of the present invention provides a terminal, which at least includes a processor, a memory, a communication interface and a communication bus,
the communication bus is used for realizing connection communication between the processor and the memory;
the communication interface is used for communicating with a cell;
the processor is used for executing the program of the non-card urgent communication stored in the memory so as to realize the method of the non-card urgent communication.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, where a program for non-card emergency communication is stored, and when executed by a processor, the program for non-card emergency communication implements the method for non-card emergency communication.
The embodiment of the invention provides a non-card urgent communication method, a terminal and a computer readable storage medium, wherein the non-card urgent communication method comprises the following steps: when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell; receiving at least one system information of the at least one cell; determining a candidate cell supporting the non-jamming emergency communication according to the at least one piece of system information; selecting a target cell with the best communication quality capability from the candidate cells based on the parameter information of the at least one cell; and performing non-jamming emergency communication in the target cell. Therefore, the embodiment of the invention not only considers the condition that the network side does not support the emergency communication failure caused by the no-card emergency communication, selects the candidate cell supporting the no-card emergency communication, but also considers that the communication capability of the network can influence the success rate of the emergency call, comprehensively selects the target cell supporting the no-card emergency communication and having the best communication capability for the no-card emergency communication based on the candidate cell, and can shorten the call-through time of the no-card emergency communication and improve the call-through rate of the no-card emergency communication.
Drawings
FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;
fig. 2 is a first schematic flow chart illustrating an implementation of a method for card-free emergency communication according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an implementation flow of a method for card-free emergency communication according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating a third implementation process of a card-free emergency communication method according to an embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a fourth implementation flow of a card-free emergency communication method according to an embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating an implementation of a card-free emergency communication method according to an embodiment of the present invention;
fig. 7 is a schematic flow chart illustrating a sixth implementation process of a card-free emergency communication method according to an embodiment of the present invention;
fig. 8 is a schematic flowchart illustrating an implementation flow of a method for non-card emergency communication according to an embodiment of the present invention;
fig. 9 is a schematic flowchart eight illustrating an implementation flow of a method for card-free emergency communication according to an embodiment of the present invention;
fig. 10 is a schematic flowchart illustrating an implementation flow of a method for card-free emergency communication according to an embodiment of the present invention;
fig. 11 is a schematic flowchart ten illustrating an implementation flow of a method for card-free emergency communication according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following describes specific technical solutions of the present invention in further detail with reference to the accompanying drawings in the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
For the emergency call function, the emergency number includes, as required by the 3GPP protocol: 112. 8 numbers 911, 999, 000, 110, 118, 119, 08; the emergency call service types include: fire, bandit, mountain rescue, first aid and coast rescue; the emergency numbers that the terminal can recognize are classified into 3 types: one is an emergency number stored in a user identification card, a global user identification card and a multimedia service identification card; the second type is an emergency number stored in the terminal; the third category is the emergency number issued by the network. When dialing an emergency number, the terminal can carry the emergency call service type to which the number belongs to identify the emergency call center which the terminal wants to access.
The network selection order defined by the 3GPP protocol is: the terminal must be able to make the selection of the service domain for the emergency call function and if an emergency call attempt fails, the terminal needs to automatically select other domains to complete the emergency call. If the terminal recognizes that the current network does not support IMS emergency calls, then a packet switched (CS) domain needs to be selected for completion. If the IMS emergency call does not support, as long as the CS domain supports the emergency call, the terminal performs a Circuit Switched Fallback (CSFB) emergency call; if the network does not support CSFB, the terminal needs to automatically select other systems capable of completing the emergency call in the CS domain.
For non-card emergency Communication, since Network registration cannot be performed and only Network camping can be performed, the non-card terminal cannot perform emergency call of CSFB function, and needs to be completed in networks such as Long Term Evolution (LTE), Global System for Mobile Communication (GSM), Enhanced Data Rate for GSM Evolution (Enhanced Data Rate for GSM Evolution) Radio Access Network (UTRAN), and Evolved Universal Terrestrial Radio Access Network (EDGE). And because the no-card urgent communication function is optional in the 3GPP protocol, which allows the operator network not to support the function, if the terminal is camped in a network that does not support no-card urgent communication, after dialing the emergency number, the interface will quickly return to the end of the call, and the ordinary user cannot identify and cannot quickly manually control and select to camp the terminal on the network supporting the emergency call, so that there may be problems of long call-through time and low call-through rate in emergency.
Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention, as shown in fig. 1, the network architecture includes a terminal, a network 1, and a network 2 to a network N, where the terminal is a mobile communication device, supports a card-less emergency communication, and can camp on a mobile network cell with a signal to initiate a card-less emergency communication; the network 1, the network 2 to the network N are mobile network cells with signals, and the mobile network cells with signals in the embodiment of the present invention may be a plurality of mobile network cells of the same or different network systems.
When the terminal cannot register a network and the radio frequency module works normally, the terminal receives signals sent by all kinds of system base stations nearby, measures the signal strength and quality of each received wireless cell, acquires parameter information of the cell, analyzes the parameter information, acquires the information of cell return signal conditions and the information of support capability of non-card emergency communication in communication channels of different cells, and selects an optimal network emergency call according to the information fed back by the cell.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example one
An embodiment of the present invention provides a method for non-card emergency communication, and fig. 2 is a schematic view illustrating an implementation flow of the method for non-card emergency communication provided in the embodiment of the present invention, as shown in fig. 2, in the embodiment of the present invention, the method for implementing non-card emergency communication may include the following steps:
in the embodiment of the invention, when the terminal is in a card-free state and starts up, a measurement request is sent to the network side equipment, and when the adjacent cell information sent by the network equipment is received, at least one adjacent cell is measured according to the adjacent cell information, and the parameter information of the at least one cell is obtained.
Illustratively, the parameter information includes signal strength and signal quality.
It should be noted that, the neighboring cell is determined whether the radio frequency module on the terminal can receive the information sent by the cell, and if the radio frequency module can receive the information sent by the cell, the cell is the neighboring cell.
In the embodiment of the invention, after the parameter information of at least one cell is acquired, the communication channel of the corresponding cell is obtained by analyzing the parameter information of at least one cell, and at least one system information of the corresponding at least one cell is received in the communication channel;
it should be noted that the system message includes information related to cell access and parameter information related to cell selection, where the information related to cell access may include, but is not limited to: PLMN, Tracking Area Code (TAC), and cell identification; the parameter information related to cell selection may include, but is not limited to: maximum signal transmitting power, signal coding power, signal receiving quality, frequency band information and scheduling information of system information.
In the embodiment of the present invention, after receiving a system message sent by a cell, it needs to determine whether the cell supports non-card emergency communication according to the system message broadcast by the cell, and if the cell supports non-card emergency communication, it determines that the cell supporting non-card emergency communication is a candidate cell.
It should be noted that the system message includes parameter information of a support capability for supporting the non-jamming emergency communication, and whether the cell supports the non-jamming emergency communication may be determined according to the parameter information of the support capability in the system message.
Illustratively, if the default ims-emergency support-r9: true is included in the system message, it is determined that the cell is a cell that does not support chuck-free emergency communication.
And step 204, selecting a target cell with the best communication capability from the candidate cells based on the parameter information of at least one cell.
In the embodiment of the present invention, after determining the candidate cells, it is further required to select a cell with the best communication capability as a target cell for cells in the candidate cells based on the corresponding parameter information.
It should be noted that the parameter information of the cell is a parameter used to characterize the communication capability of the cell, and the parameter information of the cell may include the signal strength and the signal quality of the cell, and the cells are prioritized according to the communication capability according to the signal strength and the signal quality of the cell. In addition, the terminal can also perform periodic measurement on the cell signal condition, dynamically change the signal sequence of each cell, and ensure that the cell with the best communication capability is selected as the target cell every time.
In the embodiment of the invention, after the target cell is determined, when the terminal receives the non-card emergency communication request and responds to the non-card emergency communication request, the terminal is camped in the network of the target cell to carry out non-card emergency communication.
It should be noted that when dialing an emergency number, the terminal can carry the emergency call service type to which the number belongs to identify the emergency call center that is desired to be accessed, wherein the emergency call service type includes fire alarm, police alarm, mountain rescue and emergency. Once the call is successful, the call can be called to the corresponding call platform according to the emergency call service type in the identifier.
Further, fig. 3 is a schematic diagram illustrating an implementation flow of a non-card emergency communication method according to an embodiment of the present invention, as shown in fig. 3, when the terminal is in a non-card state and starts up, the non-card emergency communication method for acquiring parameter information of at least one cell may include the following steps:
In the embodiment of the invention, when the terminal is in a card-free state and is started, the radio frequency module of the terminal sends a measurement request to the network equipment.
It should be noted that the network device may be a base station that transmits information for each cell.
And step 201b, receiving the adjacent cell information sent by the network side equipment in response to the measurement request.
In the embodiment of the invention, after the measurement request is sent to the network side equipment, the radio frequency module of the terminal receives the information of the adjacent cell sent by the network side equipment.
It should be noted that the radio frequency module of the terminal is used for sending and receiving various signals to and from the neighboring cells.
In the embodiment of the invention, after receiving the signals sent by the adjacent cells, the terminal measures the signals of at least one cell to obtain the parameter information of the cell.
It should be noted that, the radio frequency module of the terminal may also be configured to measure a signal of a cell to obtain parameter information of the cell, where the parameter information may be used to characterize communication capability of the cell, and the parameter information may include: the signal strength of the cell and the signal quality of the cell.
Further, fig. 4 is a schematic flow chart illustrating an implementation of a method for communication without emergency communication according to an embodiment of the present invention, as shown in fig. 4, where the method for determining, by the terminal, a candidate cell supporting communication without emergency communication according to at least one piece of system information may include the following steps:
In this embodiment of the present invention, after receiving at least one system cell sent by at least one cell, the terminal may determine whether the system message includes a preset parameter.
It should be noted that, according to the 3GPP protocol, if a preset parameter is ims-emergency support-r9: true in a system message of a cell, it is determined that the cell is a cell supporting no-card emergency communication, otherwise, it is determined that the cell does not support no-card emergency communication.
In the embodiment of the invention, according to the system message of the cell, if the preset parameters exist in the system message of the cell, the cell corresponding to the system message is determined to be the cell supporting the communication without the emergency card.
In the embodiment of the invention, according to the system information of the cell, if the default preset parameters in the system information of the cell are found, the cell corresponding to the system information is determined to be the cell supporting the communication without the emergency card.
And step 203d, determining the cell supporting the communication without the emergency as a candidate cell.
In the embodiment of the present invention, after determining whether a cell corresponding to the system supports the no-card emergency communication according to at least one system message of at least one cell, the cell supporting the no-card emergency communication may be determined as a candidate cell.
Further, fig. 5 is a schematic flow chart of a fourth implementation procedure of the non-jamming emergency communication method according to the embodiment of the present invention, as shown in fig. 5, the terminal selects a target cell with the best communication capability from the candidate cells based on parameter information of at least one cell, that is, the non-jamming emergency communication method in step 204 may include the following steps:
and step 204a, performing priority ranking according to the communication capacity according to the parameter information of the candidate cells.
In the embodiment of the invention, after the candidate cell supporting the communication without the jamming is determined, the terminal performs priority ranking according to the communication capacity according to the parameter information of the candidate cell.
The parameter information of the candidate cell includes signal strength and signal quality of the cell, and the communication capability includes signal strength and signal quality.
Illustratively, according to the parameter information of the candidate cells, the priority ranking is performed according to the communication capacity, which may be that when the signal strength meets a preset signal threshold, the priority ranking is performed according to the signal strength; and when the signal strength does not meet the preset signal threshold, carrying out priority sequencing according to the signal quality.
And step 204b, selecting the cell with the best communication capability as the target cell from the priority sequence.
In the embodiment of the invention, after the priority ranking is carried out according to the communication capacity, the terminal selects the cell with the best communication capacity as the target cell.
Further, fig. 6 is a schematic diagram of a flow chart of implementing the no-card emergency communication method provided by the embodiment of the present invention, as shown in fig. 6, the parameter information includes: signal strength and signal quality, the communication capability includes: the signal strength and the signal quality are high and low, and the method for the above terminal to communicate without the jamming at step 204a may include the following steps:
and 204aa, when the signal strength meets a preset signal threshold, performing priority sequencing according to the signal strength.
In the embodiment of the present invention, based on the parameter information including the signal strength and the signal quality, the communication capability includes the signal strength and the signal quality, that is, the priorities of the cells may be sorted according to the signal strength and the signal quality.
Illustratively, the embodiment may set the preset signal threshold to-105 dBm, where dBm is a value representing an absolute value of power, and when the signal strength is greater than-105 dBm, the terminal performs prioritization according to the signal strength.
And step 204ab, when the signal strength does not meet the preset signal threshold, performing priority ranking according to the signal quality.
In the embodiment of the invention, when the signal is determined not to meet the preset signal threshold, the terminal does not perform priority ranking according to the signal strength at the moment, but further performs priority ranking according to the signal quality.
Further, fig. 7 is a schematic flow chart illustrating a sixth implementation flow of a no-card emergency communication method according to an embodiment of the present invention, as shown in fig. 7, the method for the no-card emergency communication after the step 202 and before the step 203 of the terminal may further include a step 202A, and the no-card emergency communication method of the step 204 may include a step 204A and a step 204B, where the no-card emergency communication method includes the following steps:
In the embodiment of the present invention, after receiving the system message of the cell and before determining the candidate cell supporting the communication without the jamming, the terminal may perform priority ranking according to the parameter information of at least one cell and the level of the communication capability.
In other embodiments, the parameter information includes signal strength and signal quality; the communication capability comprises signal strength and signal quality, and the method for prioritizing according to the communication capability comprises the following steps: when the signal intensity meets a preset signal threshold, carrying out priority sequencing according to the signal intensity; and when the signal strength does not meet the preset signal threshold, carrying out priority sequencing according to the signal quality.
And step 204A, updating the priority sequence according to the candidate cells.
In the embodiment of the invention, after the candidate cell is determined, the terminal updates the priority ranking based on the candidate cell.
It should be noted that, the priority ranking may be updated by removing cells that do not support the non-card emergency communication and reserving cells that support the non-card emergency communication in the priority ranking.
And step 204B, selecting the cell with the highest communication capability as the target cell from the updated priority list.
In the embodiment of the present invention, after the priority list is updated, a cell with the highest communication capability is selected as the target cell from the updated priority list.
It should be noted that, the terminal according to the embodiment of the present invention may also perform periodic measurement on the cell signal conditions, and dynamically change the signal sequence of each cell, so as to ensure that the cell with the best communication capability is selected as the target cell each time.
Further, fig. 8 is a schematic flow chart illustrating an implementation process of a non-jamming communication method according to an embodiment of the present invention, as shown in fig. 8, where the terminal performs non-jamming communication in the target cell, that is, the non-jamming communication method in step 205 may include the following steps:
In the embodiment of the invention, the terminal receives the request of the non-card urgent communication before initiating the non-card urgent communication.
It should be noted that the above-mentioned non-card urgent communication request is used to indicate that the user needs to perform non-card urgent communication at this time, and may be sent through a normal dial or an emergency dial on the terminal.
And step 205b, responding to the request for the non-jamming urgent communication, and performing the non-jamming urgent communication in the target cell.
In the embodiment of the invention, after the terminal receives the non-card urgent communication request, the terminal responds to the non-card urgent communication request and camps in the target cell to carry out non-card urgent communication.
Further, fig. 9 is a schematic flow chart illustrating an implementation of a no-card emergency communication method according to an embodiment of the present invention, as shown in fig. 9, after the terminal performs no-card emergency communication in the target cell, that is, after step 205, the no-card emergency communication method may include the following steps:
and step 206, when receiving the message that the call returned by the target cell fails, selecting a substitute cell with second best communication capability from the candidate cells.
In the embodiment of the invention, after the target cell carries out non-jamming emergency communication, when the terminal receives a message of call failure returned by the target cell, a candidate cell with the second best communication capability is selected from the candidate cells.
It should be noted that the failure message includes, but is not limited to: a Session Initiation Protocol (SIP) reject code returned by the network side or a CS domain emergency call network side of 2/3G returns a call control message and a failure message carried by the network side, which is not limited in this embodiment.
And step 207, performing the non-jamming emergency communication in the alternative cell.
In the embodiment of the invention, after the supplementary cell with the second best communication capability is selected from the candidate cells, the terminal performs camping in the supplementary cell and initiates the non-card urgent communication.
Further, fig. 10 is a schematic diagram illustrating an implementation flow of a no-card emergency communication method according to an embodiment of the present invention, as shown in fig. 10, in an embodiment of the present invention, when a target cell returns a call failure message, a method for selecting a candidate cell with a second best communication capability from candidate cells may include the following steps:
In the embodiment of the invention, when the terminal receives the call failure message returned by the target cell, the terminal determines that the emergency communication of the target cell fails, and then the terminal can automatically acquire the first PLMN corresponding to the target cell.
And step 206b, acquiring a second PLMN corresponding to the replacement cell with the second best communication capability.
In the embodiment of the invention, after the terminal determines that the emergency communication of the target cell fails, the terminal selects the candidate cell with the second best communication capability from the priority list table and acquires the second PLMN corresponding to the substitute cell.
And step 206c, when the first PLMN and the second PLMN are determined to be different, selecting the cell corresponding to the second PLMN as a replacement cell.
In the embodiment of the invention, after a first PLMN of a target cell and a second PLMN corresponding to a candidate cell are obtained, a terminal needs to judge whether the first PLMN and the second PLMN are the same, when the first PLMN and the second PLMN are determined to be different, a cell corresponding to the second PLMN is selected as a replacement cell, and when the first PLMN and the second PLMN are determined to be the same, the terminal continues to select a next suboptimal cell with different PLMNs for cardless communication.
It should be noted that, because the probability of network failure occurring in cells of the same PLMN is relatively high, in order to improve the call-through rate of the non-card emergency communication, in the embodiment of the present invention, after determining that the PLMN communication corresponding to the last cell fails, different PLMN cells are selected to perform communication, so as to improve the call-through rate of the non-card emergency communication, and if the PLMNs corresponding to the cells adjacent to the terminal are the same, the terminal directly performs sequential communication according to the priority order until the terminal succeeds in communication without the card.
The embodiment of the invention provides a method for communication without a card, which comprises the following steps: when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell; receiving at least one system information of at least one cell; determining a candidate cell supporting the non-jamming emergency communication according to at least one piece of system information; selecting a target cell with the best communication capability from the candidate cells based on the parameter information of at least one cell; the method comprises the steps of carrying out non-card urgent communication in a target cell, thus, considering the condition that emergency communication fails due to the fact that a network side does not support the non-card urgent communication, selecting a candidate cell supporting the non-card urgent communication, considering that the communication capacity of the network can influence the success rate of emergency call, comprehensively selecting the target cell supporting the non-card urgent communication and having the best communication capacity to carry out the non-card urgent communication based on the candidate cell, and being capable of shortening the call-through time of the non-card urgent communication and improving the call-through rate of the non-card urgent communication.
Example two
Based on the same inventive concept of the first embodiment, fig. 11 is a schematic flow chart illustrating an implementation of a method for non-jamming emergency communication according to an embodiment of the present invention, as shown in fig. 11, in the implementation of the present invention, parameter information of a cell includes strength and quality of a signal, and the method for non-jamming emergency communication may include the following steps:
step 1101: the terminal is started without inserting a card.
In the embodiment of the invention, the terminal card can be a user identity identification card, a global user identity card or a multimedia service identity card which is not inserted into the terminal.
Step 1102: and acquiring a signal sent by the cell.
In the embodiment of the invention, after the terminal is started without inserting a card, the terminal sends the test request to the cell and acquires the signal sent by the cell according to the test request.
Step 1103: the signal strength and quality of the cell are measured.
In the embodiment of the invention, after the signal sent by the cell is acquired, the terminal can measure the acquired signal to acquire the signal strength and the signal quality of the cell.
The smaller the absolute value of the signal strength is, the stronger the signal is, and the larger the signal strength is, the better the quality of the signal is.
Step 1104: and receiving system messages corresponding to different cells, and determining the cell supporting the communication without the emergency card.
In the embodiment of the present invention, after the terminal acquires the signal sent by the cell, the terminal may further analyze the signal to obtain a communication channel corresponding to the cell, receive a system message broadcasted by the cell on the communication channel, and determine whether the cell supports the communication without the card urgency according to the system messages of different cells, for example, the system message may be an auxiliary message block (SIB) message.
It should be noted that, according to the system messages of different cells, the method for determining whether the cell supports the communication without the emergency signal may be: judging whether preset parameters are contained or not according to system messages of different cells; when the system message contains preset parameters, the cell corresponding to the system message is a cell supporting the communication without card urgency; and when the system message does not contain the preset parameters, the cell corresponding to the system message is a cell which does not support the communication without the emergency card.
For example, the preset parameters may be: im-EmergenCySupport-r 9: true.
Step 1105: prioritization is based on signal strength and quality of the cells and the cells supporting the communication without the jamming.
In the embodiment of the invention, after the signal strength and the quality of the cell are acquired and the cell supporting the communication without the emergency is determined, the cell is prioritized based on the signal strength and the quality of the cell and the cell supporting the communication without the emergency.
It should be noted that, the method for prioritizing the cells may be to exclude the cell that does not support the card-free emergency communication from the cell that supports the card-free emergency communication, and then rank the cells according to the signal strength and quality corresponding to the cell that supports the card-free emergency communication; the priority ranking can also be performed according to the information intensity and quality of the cells, then the ranked cells are adjusted according to the cells supporting the communication without the jamming, the cells not supporting the communication without the jamming are abandoned, and the ranking of the cells supporting the communication without the jamming is reserved.
The method for carrying out priority ranking according to the signal strength and the quality of the cell comprises the following steps: when the signal intensity of the cell meets a preset condition, sequencing the cells according to the signal intensity; and when the signal intensity of the cell does not meet the preset condition, sequencing the cells according to the signal quality.
For example, when the signal strength of the cell meets the preset condition, sorting the cells according to the signal strength may be: and when the signal strength of the cell is greater than-105 dbm, sequencing the cells according to the signal strength.
Step 1106: and selecting the cell with the highest priority for camping.
In the embodiment of the invention, after the priority ranking of the cells is determined, the cell with the highest priority can be selected for camping according to the priority ranking.
Here, the cell having the highest priority is a cell having the highest communication capability and supporting communication without a signal interference.
Step 1107: an emergency call is initiated.
In the embodiment of the invention, after the terminal selects the cell with the highest priority to camp on, when the terminal receives the emergency call request, the terminal responds to the emergency call request and initiates the emergency call.
Step 1108: and judging whether the emergency call is successful, if so, turning to a step 1110, and otherwise, turning to a step 1109.
In the embodiment of the invention, after the terminal initiates the emergency call, whether the emergency call is successful can be judged, and when the emergency call is unsuccessful, the network of the next cell needs to be selected continuously for camping.
It should be noted that, after the terminal initiates the emergency call, if the cell returns failure messages for various reasons, the call interface of the terminal still displays that the user is dialing, but the bottom layer module and the call module of the terminal automatically select a second best cell of a different PLMN to continue initiating the call until the call is connected.
Exemplary failure messages include, but are not limited to: SIP reject code, call control message, and failed cell, without limitation.
Step 1109: and automatically selecting the next suboptimal cell of the PLMN to camp on.
In the embodiment of the invention, after the terminal determines that the emergency call is unsuccessful, the terminal automatically selects a suboptimal cell of a next PLMN for camping.
It should be noted that, in the case that the emergency call of the cell is unsuccessful, there may be an abnormality in the PLMN of the cell, and in order to improve the success rate of the next emergency call, it is necessary to select a cell with a suboptimal communication capability of the PLMN for camping.
Step 1110: the communication is successful without the card.
Exemplarily, a terminal confirms that 4 cells exist in a neighboring cell, which are a cell 1, a cell 2, a cell 3, and a cell 4, respectively, where a Radio Access Type (RAT) of the cell 1 is LTE and a PLMN is 46001; the RAT of the cell 2 is Wideband Code Division Multiple Access (WCDMA) and the PLMN is 46001; RAT of cell 3 is WCDMA and PLMN is 46002; the RAT of the cell 4 is Global System for mobile Communication (GSM) and the PLMN is 46002, and based on the above steps 1101 to 1110, the method for the terminal to perform the non-card emergency Communication may be implemented as follows:
first, the terminal measures the Signal Quality and Signal strength of the four cells, and measures Reference Signal Receiving Power (RSRP) of-80 dBm and Reference Signal Receiving Quality (RSRQ) of-8 dBm for cell 1; received Signal Code Power (RSCP) of cell 2 is-85 dBm and the ratio EC/No of Energy Chip (EC) to the Power spectral density (Noise, No) of white Noise is-6 dB; RSCP of the cell 3 is-95 dBm and Ec/No is-5 dB; the RSSI of the Received Signal Strength Indicator (Received Signal Strength Indicator, RSSI) of the cell 4 is-100 dBm and the ratio C/I of the Signal power (Carrier, C) to the Interference (Interference, I) is 9 dB.
Secondly, the terminal determines that the cell 1 does not support emergency call and the cells 2 to 4 all support non-jamming emergency communication by using the default ims-emergency support-r9 in the SIB message as true.
Furthermore, the terminal prioritizes the four cells according to step 1105.
When the signal strength > 105dBm, carrying out priority ordering in the order of strong signal strength to weak signal strength; when the signal strength is < -105dBm, the priority ordering is performed in the order of the signal quality from good to bad. Since the signal strengths of the four cells are all greater than-105 dBm, the ranking results of the four cells can be obtained as follows: cell 1> cell 2> cell 3> cell 4. Meanwhile, the result of obtaining a cell supporting the jamming-free emergency communication is cell 2, cell 3, and cell 4.
Based on the above results, the cells that do not support the non-chucking emergency communication may be prioritized first and then screened, or the cells may be prioritized first and then prioritized, and both the prioritized cell selection and the prioritized cell selection may be performed: cell 2> cell 3> cell 4.
And finally, selecting the cell with the highest priority, namely the cell 2 to camp and initiate an emergency call, when receiving a failure message returned by the cell 2, automatically selecting the cell 4 to initiate the emergency call by a bottom layer module and a call module of the terminal to initiate the emergency call with a second best cell 3 of the cell 2PLMN, and if the failure message still fails, and until the emergency call is successful.
Through the embodiment of the invention, when the terminal has no-card urgent communication, the terminal selects the cell which supports the no-card urgent communication and has the optimal communication capability to initiate the emergency call at the initial calling, so the call completing rate of the terminal emergency call can be improved, and after the emergency call, if the network side causes the failure, the terminal can automatically select the suboptimal cell to carry out the next round of calling, and the call completing rate of the terminal no-card urgent communication can be further improved to a certain extent.
EXAMPLE III
Based on the same inventive concept of the first embodiment and the second embodiment, an embodiment of the present invention provides a terminal, fig. 12 is a schematic view of a composition structure of the terminal according to the first embodiment of the present invention, as shown in fig. 12, the terminal at least includes a processor 1201, a memory 1202, a communication interface 1203, and a communication bus 1204, where the communication bus 1204 is used for implementing connection communication between the processor and the memory; a communication interface 1203 is used for communicating with a cell; the processor 1201 is configured to execute the card-free emergency communication program stored in the memory to implement the following steps:
when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell;
receiving at least one system information of at least one cell;
determining a candidate cell supporting the non-jamming emergency communication according to at least one piece of system information;
selecting a target cell with the best communication capability from the candidate cells based on the parameter information of at least one cell;
and performing non-jamming urgent communication in the target cell.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
when the device is in a card-free state and starts up, sending a measurement request to network side equipment;
receiving adjacent cell information sent by network side equipment in response to the measurement request;
and measuring at least one adjacent cell according to the adjacent cell information to obtain the parameter information of the at least one cell.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
judging whether the system message contains preset parameters or not according to at least one system message;
when the system message contains preset parameters, determining a cell corresponding to the system message as a cell supporting the communication without emergency;
when the system message does not contain the preset parameters, determining that the cell corresponding to the system message is a cell which does not support the card-free emergency communication;
and determining the cell supporting the non-jamming emergency communication as a candidate cell.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
based on the parameter information corresponding to the candidate cells, carrying out priority ranking according to the communication capacity;
and selecting the cell with the highest priority and the best communication capability as the target cell from the priority sequence.
In an alternative embodiment, the processor is further configured to execute a card-free emergency communication program stored in the memory to perform the steps of:
after the parameter information of at least one cell is obtained and before the candidate cell supporting the communication without the jamming is determined based on at least one system information, the cell parameter information is used for carrying out priority ranking according to the communication capacity.
Updating the priority ranking according to the candidate cells;
and selecting the cell with the highest communication capability as the target cell from the updated priority list.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
the parameter information includes: signal strength and signal quality, the communication capability includes: the signal strength and the signal quality are high and low;
when the signal intensity meets a preset signal threshold, carrying out priority sequencing according to the signal intensity;
and when the signal strength does not meet the preset signal threshold, carrying out priority sorting according to the signal quality.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
receiving a non-card urgent communication request;
and responding to the request of the non-chucking emergency communication, and performing the non-chucking emergency communication in the target cell.
In an alternative embodiment, the processor is further configured to execute a card-free emergency communication program stored in the memory to perform the steps of:
after carrying out non-jamming urgent communication in a target cell, when receiving a message of call failure returned by the target cell, selecting a replacement cell with second best communication capability from candidate cells;
and performing non-jamming emergency communication in the alternative cell.
In an alternative embodiment, the processor is specifically configured to execute a card-free emergency communication program stored in the memory to implement the following steps:
when receiving a message that a call returned by a target cell fails, acquiring a PLMN corresponding to the target cell;
acquiring a second PLMN corresponding to a replacement cell with second good communication capability;
and when the first PLMN and the second PLMN are determined to be different, selecting the cell corresponding to the second PLMN as a replacement cell.
In practical applications, the processor may be a Central Processing Unit (CPU), a Microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.
In addition, each component in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a form of hardware or a form of a software functional module.
Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: various media capable of storing program codes, such as a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash Memory (FlashMemory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read Only Memory (CD-ROM), are not limited in the embodiments of the present invention.
Based on the foregoing embodiments, an embodiment of the present invention provides a computer-readable storage medium, on which a no-card emergency communication program is stored, where the no-card emergency communication program, when executed by a processor, implements a no-card emergency communication method in one or more embodiments described above.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A method of clampless emergency communication, the method comprising:
when the mobile terminal is in a card-free state and starts up, acquiring parameter information of at least one cell;
receiving at least one system information of the at least one cell;
determining a candidate cell supporting the non-jamming emergency communication according to the at least one piece of system information;
selecting a target cell with the best communication capability from the candidate cells based on the parameter information of the at least one cell;
and performing non-jamming emergency communication in the target cell.
2. The method of claim 1, wherein obtaining the parameter information of at least one cell when the device is in a no-card state and is turned on comprises:
when the device is in a card-free state and starts up, sending a measurement request to network side equipment;
receiving adjacent cell information sent by the network side equipment in response to the measurement request;
and measuring the at least one adjacent cell according to the adjacent cell information to obtain the parameter information of the at least one cell.
3. The method of claim 2, wherein determining the candidate cells supporting the chuck-free emergency communication according to the at least one system information comprises:
judging whether the system message contains preset parameters or not according to the at least one system message;
when the system message contains the preset parameters, determining that the cell corresponding to the system message is a cell supporting the communication without the card emergency;
when the system message does not contain the preset parameters, determining that the cell corresponding to the system message is a cell which does not support the communication without the card emergency;
determining the cell supporting the jamming-free emergency communication as the candidate cell.
4. The method of claim 3, wherein the parameter information of the cell is used to characterize communication capabilities of the cell, and the selecting a target cell with best communication capability from the candidate cells based on the parameter information of the at least one cell comprises:
based on the parameter information corresponding to the candidate cells, carrying out priority ranking according to the communication capacity;
and selecting the cell with the best communication capability as the target cell from the priority sequence.
5. The method of claim 3, wherein after the obtaining parameter information of at least one cell and before the determining candidate cells supporting chuck-free communication based on the at least one system information, the method further comprises:
based on the cell parameter information, carrying out priority sequencing according to the communication capacity;
correspondingly, the selecting a target cell with the best communication capability from the candidate cells based on the parameter information of the at least one cell includes:
updating the priority ranking according to the candidate cell;
and selecting the cell with the highest communication capability as the target cell from the updated priority list.
6. The method according to claim 4 or 5, wherein the parameter information comprises: signal strength and signal quality, the communication capability comprises: the signal strength and the signal quality are prioritized according to the communication capability based on the parameter information, and the method includes:
when the signal intensity meets a preset signal threshold, carrying out priority sequencing according to the signal intensity;
and when the signal strength does not meet the preset signal threshold, carrying out priority sequencing according to the signal quality.
7. The method of claim 1, wherein the performing the chuck-free emergency communication in the target cell comprises:
receiving a non-card urgent communication request;
and responding to the non-chucking emergency communication request, and performing non-chucking emergency communication in the target cell.
8. The method of claim 7, wherein after the non-jamming emergency communication in the target cell, the method further comprises:
when receiving the message that the call returned by the target cell fails, selecting a substitute cell with second best communication capability from the candidate cells;
and performing non-jamming emergency communication in the alternative cell.
9. The method of claim 8, wherein selecting the candidate cell with the next best communication capability from the candidate cells when receiving the message that the target cell return call fails comprises:
when receiving a message that the call returned by the target cell fails, acquiring a first Public Land Mobile Network (PLMN) corresponding to the target cell;
acquiring a second PLMN corresponding to the replacement cell with the second best communication capability;
and when the first PLMN and the second PLMN are determined to be different, selecting the cell corresponding to the second PLMN as the alternative cell.
10. A terminal, characterized in that the terminal comprises at least a processor, a memory, a communication interface and a communication bus, wherein,
the communication bus is used for realizing connection communication between the processor and the memory;
the communication interface is used for communicating with a cell;
the processor is configured to execute a program stored in the memory for performing the method according to any one of claims 1 to 9 without any critical communication anomalies.
11. A computer-readable storage medium, characterized in that the computer-readable medium stores a program for non-card emergency communication, which when executed by a processor implements the method according to any one of claims 1 to 9.
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| CN201811621026.2A CN111385783A (en) | 2018-12-28 | 2018-12-28 | Non-clamping emergency communication method, terminal and computer readable storage medium |
| PCT/CN2019/129926 WO2020135869A1 (en) | 2018-12-28 | 2019-12-30 | Card-less emergency communication method, terminal, and computer readable storage medium |
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| CN201811621026.2A CN111385783A (en) | 2018-12-28 | 2018-12-28 | Non-clamping emergency communication method, terminal and computer readable storage medium |
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| CN113973272A (en) * | 2021-12-16 | 2022-01-25 | 荣耀终端有限公司 | Method, apparatus and storage medium for emergency call |
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