CN104469724A - A method and system for emergency communication - Google Patents

Abstract

The present invention provides an emergency communication method and system. The method includes: establishing a communication connection between a blind spot mobile phone and a hotspot mobile phone; Establish a bridge with the blind spot mobile phone, and establish a communication connection between the blind spot mobile phone and the target mobile phone. Compared with the prior art, the present invention can effectively solve the embarrassment that the emergency base station cannot be reached in complex areas with signal blind spots, and is greener, more environmentally friendly and more convenient, and greatly improves the safety of users when they cannot directly establish a connection with the communication network. user experience.

Description

A method and system for emergency communication

technical field

The present invention relates to the technical field of mobile communication, in particular to an emergency communication method and system.

Background technique

With the development of mobile communication networks, in order to improve user experience, higher and higher requirements are put forward for emergency communication in special situations or in special fields. At present, the signal coverage of a single communication base station in the mobile communication network is always limited, especially in some complex environments (such as mountains, hills, indoors, etc.), it is more likely to have blind spots in signal coverage.

In the prior art, there are two methods to solve the problem of such signal coverage blind spots:

Users actively move to areas with signal coverage or use emergency mobile base stations to enhance coverage.

Specifically, in the process of realizing the present invention, the inventors have found that the existing solutions have the following disadvantages:

It is very inconvenient for the user to move to the area with signal coverage, especially for the user who works in a specific location, it is even impossible.

Although the use of emergency base stations can solve the problem of signal coverage, the emergency base station equipment itself is very large, and some special terrains cannot be transported at all; at the same time, the deployment of emergency base stations has problems such as high implementation costs and complicated steps, and is not suitable for temporary small-scale regional coverage.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide an emergency communication method and system.

A method of emergency communication, the method comprising:

The blind spot mobile phone establishes a communication connection with the hot spot mobile phone;

The hotspot mobile phone obtains the information of the target mobile phone, and establishes a communication connection with the target mobile phone through the communication network;

The hotspot mobile phone establishes a bridge between the target mobile phone and the blind spot mobile phone, and establishes a communication connection between the blind spot mobile phone and the target mobile phone.

The method also includes:

The blind-spot mobile phone is registered to the special gateway on the hotspot mobile phone by the session initiation protocol SIP client; the registration information includes SIP account number, SIP password, SIP service period address and port;

After the dedicated gateway of the hotspot mobile phone receives the SIP registration request, it checks the legitimacy of the registered account, if it is a legal account, it caches it and responds with a successful registration; otherwise, it responds with a failed registration; the registration cache information includes registration account, the IP address of the registered account, and the port of the registered account.

The hotspot mobile phone turns on the WIFI hotspot function, and the blind spot mobile phone establishes a communication connection with the hotspot mobile phone through WIFI.

The hotspot mobile phone obtains target mobile phone information by analyzing the SIP signaling sent by the blind spot mobile phone, and establishes a communication connection with the target mobile phone through a communication network according to the target mobile phone information.

The hotspot mobile phone establishes a bridge between the target mobile phone and the blind spot mobile phone, including:

The hotspot mobile phone maintains a communication connection with the blind spot mobile phone, and after the communication connection with the target mobile phone is established, cancels the maintained communication connection with the blind spot mobile phone, and the communication connection with the blind spot mobile phone and the target mobile phone The communication connection of the mobile phone performs the mixing operation and establishes a bridge.

If the target mobile phone cannot be connected, the hotspot mobile phone hangs up the communication connection with the blind spot mobile phone.

The method also includes:

The target mobile phone establishes a communication connection with the hotspot mobile phone through the communication network;

The hotspot mobile phone obtains the blind spot mobile phone information, and establishes a communication connection with the blind spot mobile phone;

The hotspot mobile phone establishes a bridge between the target mobile phone and the blind spot mobile phone, and establishes a communication connection between the blind spot mobile phone and the target mobile phone.

An emergency communication system, the system includes a blind spot mobile phone and a hot spot mobile phone, wherein,

The blind spot mobile phone is used to establish a communication connection with the hotspot mobile phone; and establish a communication connection with the target mobile phone according to the bridging of the hotspot mobile phone;

The hotspot mobile phone is used to establish a communication connection with the blind spot mobile phone, obtain the target mobile phone information, and establish a communication connection with the target mobile phone through a communication network; establish a bridge between the target mobile phone and the blind spot mobile phone, and establish a blind spot mobile phone and The communication link between the target mobile phone.

The blind spot mobile phone further includes a WIFI unit and a SIP unit, wherein,

The WIFI unit is used to search for the WIFI hotspot signal of the hotspot mobile phone, and establish a WIFI connection with the hotspot mobile phone;

The SIP unit is configured to call the target mobile phone to the hotspot mobile phone, and the call request includes the information of the target mobile phone.

The hotspot mobile phone further includes a WIFI hotspot unit, a dedicated gateway unit, a call unit and a bridge unit, wherein,

The WIFI hotspot unit is used to realize the WIFI hotspot function and establish a WIFI connection with the blind spot mobile phone;

The dedicated gateway unit is used to analyze the call request sent by the blind spot mobile phone to obtain target mobile phone information;

The calling unit is used to call the target mobile phone through a communication network and establish a communication connection;

The bridging unit is used for establishing a bridge between the target mobile phone and the blind spot mobile phone, and establishing a communication connection between the blind spot mobile phone and the target mobile phone.

The special gateway unit is also used to receive the registration information of the blind spot mobile phone, the registration information includes SIP account number, SIP password, SIP service period address and port;

After the special gateway unit receives the SIP registration request, it checks the validity of the registered account, if it is a legal account, it caches it, and responds that the registration is successful; otherwise, it responds that the registration fails; the registration cache information includes the registered account, The IP address of the registered account and the port of the registered account.

In the present invention, by setting the emergency communication function of the hotspot mobile phone, when the blind spot mobile phone cannot communicate directly through the communication network, it establishes a communication connection with the hotspot mobile phone, and then calls the target mobile phone through the hotspot mobile phone. After establishing a connection with the target mobile phone, the hotspot mobile phone will The communication connection between the blind spot mobile phone and the target mobile phone is bridged, and the communication connection between the blind spot mobile phone and the target mobile phone is established, so as to realize the emergency communication of the blind spot mobile phone. Compared with the prior art, the present invention can effectively solve the embarrassment that the emergency base station cannot be reached in complex areas with signal blind spots, and is greener, more environmentally friendly and more convenient, and greatly improves the safety of users when they cannot directly establish a connection with the communication network. user experience.

Description of drawings

Fig. 1 is a principle flowchart of the emergency communication method provided by Embodiment 1 of the present invention;

FIG. 2 is a structural diagram of the emergency communication system provided by Embodiment 1 of the present invention;

FIG. 3 is a schematic structural diagram of the emergency communication system provided by Embodiment 2 of the present invention;

FIG. 4 is a schematic structural diagram of a blind spot mobile phone 100 provided in Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a hotspot mobile phone 200 provided in Embodiment 2 of the present invention.

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited thereto.

The principle of each embodiment of the present invention is: based on the fact that most smart phones already have the function of establishing WIFI hotspots, by deploying a special program on the mobile phone with WIFI hotspot function, it has the ability to undertake emergency network coverage in a small area ability. That is, in a small area where the 2G/3G signal of a certain operator is not well covered, one or more mobile phones with the ability to establish WIFI hotspots can provide emergency signal coverage to other terminals within a certain distance through a dedicated program.

The "blind spot mobile phone" and the "hot spot mobile phone" use the WIFI channel to use the SIP (Session Initiation Protocol) protocol as the signaling interaction. The "blind spot mobile phone" actively calls the "hot spot mobile phone", and the "hot spot mobile phone" then The call is sent to the "target mobile phone" through the GSM network, thereby establishing a voice path between the "blind spot mobile phone" and the "target mobile phone". On the other hand, if the "blind spot mobile phone" is set with the function of "transferring calls to hot spot mobile phone when unavailable", then when the "target mobile phone" calls the "blind spot mobile phone" through the GSM network, it will be transferred to the "hot spot mobile phone" After the "hotspot phone" receives the GSM call signal, the "hotspot phone" sends the call to the "blind spot phone" via WIFI in the form of SIP signaling, thus establishing a relationship between the "target phone" and the "blind spot phone". between words.

As shown in Figure 1, it is a flow chart of the principles of the emergency communication method provided by Embodiment 1 of the present invention, specifically as follows:

Step 10, the blind spot mobile phone establishes a communication connection with the hot spot mobile phone.

Embodiment 1 of the present invention is based on a system composed of a blind spot mobile phone, a hotspot mobile phone, and a target mobile phone as shown in Figure 2, wherein, "blind spot mobile phone" refers to a mobile phone supporting WIFI function located in a signal blind spot area; "hot spot mobile phone" refers to Mobile phones that support WIFI and GSM functions in the area adjacent to the signal blind spot area with signal coverage need to be set as WIFI hotspots; at the same time, specially developed signaling gateway software needs to be deployed; Mobile terminal equipment that supports GSM protocol for communication.

The "blind spot mobile phone" is installed with general SIP client software, and is connected to the "hot spot mobile phone" through WIFI. "Hotspot phone" enables the WIFI hotspot function, and enables the dedicated gateway program. The "blind spot mobile phone" is successfully registered to the special gateway program of the "hot spot mobile phone", and calls the "target mobile phone" through the SIP client. After receiving the SIP:INVITE call request, the special gateway program of the "hotspot phone" will hold the call.

Step 20, the hotspot mobile phone obtains the information of the target mobile phone, and establishes a communication connection with the target mobile phone through the communication network.

The special gateway program of the "hot mobile phone" analyzes the number of the "target mobile phone" according to the SIP signaling, and the special gateway program uses the GSM network to call the number of the "target mobile phone" and establish a connection.

Step 30, the hotspot mobile phone establishes a bridge between the target mobile phone and the blind spot mobile phone, and establishes a communication connection between the blind spot mobile phone and the target mobile phone.

After the "target mobile phone" is connected, the previously held SIP call is released, and the SIP call and the GSM call are bridged to complete the audio mixing operation; if not connected, the voice is broadcast and the SIP call is hung up.

Since then, the "blind spot mobile phone" and the "target mobile phone" have completed the call connection and started talking.

Prior to this, there is actually a need for a registration procedure from the blind spot mobile phone to the hotspot mobile phone, including:

"Blind spot mobile phone" installs common SIP client software;

"Hotspot phone" enables the WIFI hotspot function, and enables the dedicated gateway program;

The "blind spot phone" is connected to the "hot spot phone" via WIFI;

The "blind spot phone" registers to the dedicated gateway program on the "hot spot phone" through the SIP client. The registration information includes SIP account number, SIP password, SIP service period address and port. The period address is the WIFI address of the "hotspot phone", and the SIP port is the SIPSERVER service port enabled by the special program;

After receiving the SIP registration request, the dedicated gateway program of the "hotspot phone" checks the validity of the registered account. If it is a legal account, it is cached and responds successfully, otherwise the response fails;

The registration cache information includes the registered account, the IP address of the registered account, and the port of the registered account.

On the other hand, if the target mobile phone calls the blind spot mobile phone, the process is as follows:

The "blind spot phone" installs the general SIP client software, and enables the function of "call transfer when unavailable" to the "hot spot phone";

"Hotspot phone" enables the WIFI hotspot function, and enables the dedicated gateway program;

The "blind spot phone" is connected to the "hot spot phone" via WIFI;

The "blind spot phone" is successfully registered to the special gateway program of the "hot spot phone";

The "target mobile phone" calls the "blind spot mobile phone" through the GSM network;

The GSM network transfers the call to a "hotspot phone";

After receiving the GSM call request, the "hot spot phone" special gateway program will hold the call;

The special gateway program of "hot spot mobile phone" analyzes the number of "blind spot mobile phone" according to GSM signaling;

The dedicated gateway program for hotspot mobile phones searches the registration cache information for the information that the registered account is the number of "blind-spot mobile phone", and if found, initiates a SIP:INVITE operation to the blind-spot mobile phone;

After connecting to the "blind spot mobile phone", release the previously held GSM call, and bridge the GSM call and SIP call to complete the audio mixing operation; if not connected, broadcast the voice and hang up the GSM call;

Since then, the "target mobile phone" and the "blind spot mobile phone" have completed the communication connection and started talking.

As shown in Figure 3, it is a schematic structural diagram of the emergency communication system provided by Embodiment 2 of the present invention. The system includes a blind spot mobile phone 100 and a hot spot mobile phone 200, specifically as follows:

The blind spot mobile phone 100 is used to establish a communication connection with the hotspot mobile phone 200; and according to the bridging of the hotspot mobile phone 200, establish a communication connection with the target mobile phone;

The hotspot mobile phone 200 is used to establish a communication connection with the blind spot mobile phone 100, obtain target mobile phone information, and establish a communication connection with the target mobile phone through a communication network; establish a bridge connection between the target mobile phone and the blind spot mobile phone 100, and establish communication between the blind spot mobile phone 100 and the target mobile phone connect.

Further, as shown in FIG. 4 , the blind spot mobile phone 100 further includes a WIFI unit 101 and a SIP unit 102, specifically as follows:

The WIFI unit 101 is used to search for the WIFI hotspot signal of the hotspot mobile phone 200, and establish a WIFI connection with the hotspot mobile phone 200;

The SIP unit 102 is configured to call the target mobile phone to the hotspot mobile phone 200, and the call request includes the information of the target mobile phone.

Further, as shown in Figure 5, the above-mentioned hotspot mobile phone 200 further includes a WIFI hotspot unit 201, a dedicated gateway unit 202, a call unit 203 and a bridge unit 204, specifically as follows:

The WIFI hotspot unit 201 is used to realize the WIFI hotspot function and establish a WIFI connection with the blind spot mobile phone 100;

Dedicated gateway unit 202, used to analyze the call request sent by blind spot mobile phone 100, and obtain target mobile phone information;

The calling unit 203 is used to call the target mobile phone through the communication network and establish a communication connection;

The bridging unit 204 is configured to establish a bridge between the target mobile phone and the blind spot mobile phone 100, and establish a communication connection between the blind spot mobile phone 100 and the target mobile phone.

Further, the above-mentioned dedicated gateway unit 202 is also used to receive the registration information of the blind spot mobile phone 100, the registration information includes SIP account number, SIP password, SIP service period address and port;

After the dedicated gateway unit 202 receives the SIP registration request, check the legitimacy of the registered account, if it is a legal account, then cache it, and respond to the registration success; otherwise, respond to the registration failure; the registration cache information includes the registered account number, the IP address of the registered account number , The port for registering an account.

In this embodiment, the WIFI hotspot function is used to allow the "blind spot mobile phone" to register to the "hot spot mobile phone" using the SIP protocol. The dedicated gateway program of the "hotspot phone" caches the registration information of the "blind spot phone", allowing the "target phone" to call the "blind spot phone" in reverse. The security review function of the special gateway program of the "hotspot phone" prevents illegal registration and intrusion. The special gateway program of "Hot Phone" realizes the mixing function of SIP and GSM signaling.

It should be noted that: the emergency communication system provided by the above-mentioned embodiments only uses the division of the above-mentioned functional modules as an example during emergency communication. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the system is divided into different functional modules to complete all or part of the functions described above. In addition, the emergency communication system and the emergency communication method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, and will not be repeated here.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

In summary, the present invention sets up the emergency communication function of the hotspot mobile phone. When the blind spot mobile phone cannot communicate directly through the communication network, it establishes a communication connection with the hotspot mobile phone, and then calls the target mobile phone through the hotspot mobile phone. After establishing a connection with the target mobile phone, The hotspot mobile phone bridges the communication connection between the blind spot mobile phone and the target mobile phone, and establishes the communication connection between the blind spot mobile phone and the target mobile phone, so as to realize the emergency communication of the blind spot mobile phone. Compared with the prior art, the present invention can effectively solve the embarrassment that the emergency base station cannot be reached in complex areas with signal blind spots, and is greener, more environmentally friendly and more convenient, and greatly improves the safety of users when they cannot directly establish a connection with the communication network. user experience.

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (11)

1. an emergency communication method, is characterized in that, described method comprises:

Blind spot mobile phone and focus mobile phone establish a communications link;

Focus mobile phone obtains target mobile phones information, and is established a communications link by communication network and target mobile phones;

Described target mobile phones and blind spot mobile phone are set up bridge joint by focus mobile phone, set up the communication connection between blind spot mobile phone and target mobile phones.

2. the method for claim 1, is characterized in that, described method also comprises:

Described blind spot mobile phone passes through SIP (Session Initiation Protocol) client registers to the dedicated gateway on focus mobile phone; Described log-on message comprises SIP account, SIP password, SIP period of service address and port;

After the dedicated gateway of described focus mobile phone receives described SIP registration request, check the legitimacy of register account number, if be legal account, then buffer memory gets off, and response is succeeded in registration; Otherwise, respond registration failure; Described registration cache information comprises register account number, the IP address of register account number, the port of register account number.

3. the method for claim 1, is characterized in that, WIFI hot spot function opened by described focus mobile phone, and described blind spot mobile phone and focus mobile phone are established a communications link by WIFI.

4. the method for claim 1, is characterized in that, the SIP signaling acquisition target mobile phones information that described focus mobile phone sends by resolving described blind spot mobile phone, according to described target mobile phones information, is established a communications link by communication network and described target mobile phones.

5. the method for claim 1, is characterized in that, described target mobile phones and blind spot mobile phone are set up bridge joint by described focus mobile phone, comprising:

Described focus mobile phone keeps the communication connection with described blind spot mobile phone, after the communication connection with described target mobile phones is set up, cancel keep with the communication connection of described blind spot mobile phone, to the communication connection of described and blind spot mobile phone and and the communication connection of target mobile phones carry out mixing operation, set up bridge joint.

6. the method as described in claim 1 or 5, is characterized in that, if described target mobile phones cannot be connected, then described focus mobile phone hangs up the communication connection with described blind spot mobile phone.

7. the method for claim 1, is characterized in that, described method also comprises:

Target mobile phones is established a communications link by communication network and focus mobile phone;

Focus mobile phone obtains blind spot cellphone information, and establishes a communications link with described blind spot mobile phone;

Described target mobile phones and blind spot mobile phone are set up bridge joint by focus mobile phone, set up the communication connection between blind spot mobile phone and target mobile phones.

8. an emergency communication system, is characterized in that, described system comprises blind spot mobile phone and focus mobile phone, wherein,

Described blind spot mobile phone, for establishing a communications link with focus mobile phone; And according to the bridge joint of described focus mobile phone, establish a communications link with target mobile phones;

Described focus mobile phone, for establishing a communications link with described blind spot mobile phone, being obtained described target mobile phones information, being established a communications link by communication network and described target mobile phones; Described target mobile phones and blind spot mobile phone are set up bridge joint, sets up the communication connection between blind spot mobile phone and target mobile phones.

9. system as claimed in claim 8, it is characterized in that, described blind spot mobile phone comprises WIFI unit and SIP unit further, wherein,

Described WIFI unit, for searching the WIFI hot spot signal of described focus mobile phone, setting up WIFI with described focus mobile phone and being connected;

Described SIP unit, for target mobile phones described in described focus handset call, comprises the information of described target mobile phones in call request.

10. system as claimed in claim 8, it is characterized in that, described focus mobile phone comprises WIFI hot spot unit, special gateway unit, calling unit and bridge-jointing unit further, wherein,

Described WIFI hot spot unit, for realizing WIFI hot spot function, setting up WIFI with described blind spot mobile phone and being connected;

Described special gateway unit, for resolving the call request that described blind spot mobile phone sends, obtains target mobile phones information;

Described calling unit, for calling out described target mobile phones by communication network and establishing a communications link;

Described bridge-jointing unit, sets up bridge joint for just described target mobile phones and blind spot mobile phone, sets up the communication connection between blind spot mobile phone and target mobile phones.

11. systems as claimed in claim 10, is characterized in that, described special gateway unit, and also for receiving the log-on message of described blind spot mobile phone, described log-on message comprises SIP account, SIP password, SIP period of service address and port;

After described special gateway unit receives described SIP registration request, check the legitimacy of register account number, if be legal account, then buffer memory gets off, and response is succeeded in registration; Otherwise, respond registration failure; Described registration cache information comprises register account number, the IP address of register account number, the port of register account number.