CN1983868A - Wireless communication system and management method for transmitting rescue information - Google Patents

Abstract

The invention provides a method for transmitting a rescue message in a wireless communication system. The wireless communication system comprises a base station with a communication area, a first mobile communication device and a second mobile communication device. The first mobile communication device is located outside the communication area. The method first broadcasts a first rescue request by the first mobile communication device. Once the second mobile communication device receives the first rescue request, the second mobile communication device generates a second rescue request according to the first rescue request and stores the second rescue request in the second mobile communication device. Once the second mobile communication device is within the communication area, the second mobile communication device transmits the second rescue request to the base station.

Description

Wireless communication system and management method for transmitting rescue information

technical field

The invention relates to a method for transmitting information, in particular to a method for transmitting rescue information in a wireless communication system.

Background technique

With the rapid development of wireless communication and electronic industry, mobile phone has become an indispensable portable equipment in the life or work of modern people. In addition to daily communication, mobile phones also have the function of transmitting rescue messages. Victims can dial mobile phones to seek support or assistance in real time.

However, due to cost and utilization considerations, the number of base stations and the communication area covered by the base stations are both limited. Generally speaking, when the user is in a relatively remote mountain area, the signal between the mobile phone and the base station is usually too weak or cannot be contacted because of no signal at all. In an emergency, if the climber's mobile phone is outside the communication zone (communication zone) of the adjacent base station, the climber usually can only passively wait for rescue. Such a situation may cause more serious casualties, and may also Reduce the chances of victims being rescued. Therefore, how to overcome communication difficulties to improve the efficiency of rescue and rescue is a problem that needs to be solved.

Contents of the invention

The invention provides a wireless communication system and its management method for transmitting rescue messages. According to the present invention, the mobile communication devices can transmit rescue information to each other without a base station. Since the total number of mobile communication devices and the possible coverage are much higher than that of the base station, even if the mobile communication device sending the distress signal is outside the communication area of the base station, the distress message can be transmitted to base station. After receiving the distress message, the base station can immediately notify the local rescue unit to search for the user who sent the distress signal in a nearby area.

The wireless communication system according to the present invention includes a base station with a communication area, a first mobile communication device and a second mobile communication device. Assume that the first mobile communication device is outside the communication area.

In a preferred embodiment of the present invention, when the first mobile communication device broadcasts a first rescue request, once the second mobile communication device receives the first rescue request, the second mobile communication device immediately A second rescue request is generated according to the first rescue request, and the second rescue request sufficient to include the first rescue request is stored in the second mobile communication device. Once the second mobile communication device is within the communication area, the second mobile communication device sends the second rescue request to the base station.

According to another preferred embodiment of the present invention, when the first mobile communication device loses contact with the outside world, the base station may also actively broadcast a search request. Once the second mobile communication device receives the search request broadcast by the base station, the second mobile communication device broadcasts the search request. Once the first mobile communication device receives the search request broadcast by the second mobile communication device, the first mobile communication device broadcasts the first rescue request.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of drawings

1A and B show a schematic diagram of a preferred embodiment of the present invention.

Fig. 2 shows a flow chart according to a preferred embodiment of the present invention.

3A and B show schematic diagrams of another preferred embodiment according to the present invention.

Description of reference symbols

10: Wireless communication system

12: base station

14: Communication area

16A: The first mobile communication device

16B: Second mobile communication device

18: The range that can receive the first rescue request

20: Range where search requests can be received

S21～S23: process steps

Detailed ways

A main purpose of the present invention is to provide a wireless communication system for transmitting rescue messages and a management method thereof.

See Figure 1. The wireless communication system 10 according to the present invention includes a base station 12 having a communication area 14 , a first mobile communication device 16A and a second mobile communication device 16B. Assume that the first mobile communication device 16A is outside the communication area 14 .

According to a preferred embodiment of the present invention, when the user of the first mobile communication device 16A encounters an emergency and needs to call for help, the user can use a broadcast control channel (broadcast control channel, BCCH) or other broadcast control channel function channel, a first rescue request is broadcast by the first mobile communication device 16A. In practical applications, the first rescue request may include a location information, an image, a recording or a text related to the first mobile communication device 16A, so that search and rescue personnel can know more clearly where the user is or The user's need for help; the location information can be connected to the mobile communication device 16A with an external positioning system, such as a GPS device; the image can be connected to an external camera unit to allow the user to take pictures of nearby conditions, such as obvious landmarks or the user's current situation, etc. ; Recording is a file that uses the additional recording function to record a section of sound.

As shown in FIG. 1(A), once the second mobile communication device 16B enters the range 18 that can receive the first rescue request sent by the first mobile communication device 16A, or the second mobile communication device 16B is originally located Within the range 18, the second mobile communication device 16B can receive the first rescue request. The second mobile communication device 16B can generate a second rescue request according to the first rescue request, and store the second rescue request in the second mobile communication device 16B. In addition to including all the information of the first rescue request, the second rescue request may also include a location information, an image or a recording related to the second mobile communication device 16B, so that search and rescue personnel can communicate with the second mobile communication device 16B. 16B to further determine the location of the user of the first mobile communication device 16A. In addition, the second mobile communication device 16B can issue a reminder, such as "display the message of reaching the nearest base station coverage as soon as possible", so that the user of 16B can send a rescue signal as soon as possible.

As shown in FIG. 1(B), after receiving the first rescue request, once the second mobile communication device 16B enters the communication area 14 of the base station 12, the second mobile communication device 16B can transmit the second rescue request. Request to the base station 12 . After receiving the distress message, the base station 12 can immediately notify the local rescue unit to search the nearby area for the user of the first mobile communication device 16A that sent the distress signal.

See Figure 2. Fig. 2 shows the flow chart of the above preferred specific embodiment.

According to another preferred embodiment of the present invention, when the official or non-governmental rescue organization requests a search and rescue message from the communication company, the base station 12 can also actively broadcast a search request, asking each adjacent mobile communication device to transmit the first search request on its behalf. requirements of the mobile communication device 16A. As shown in Figure 3 (A), assuming that the second mobile communication device 16B is originally located in the communication area 14 of the base station 12, once the second mobile communication device 16B receives the search request broadcast by the base station, the second mobile communication device 16B broadcasts the search request. The range 20 indicates the size of the range within which the search request sent by the second mobile communication device 16B can be received. As shown in FIG. 3(B), if the second mobile communication device 16B then moves to the vicinity of the first mobile communication device 16A, so that the first mobile communication device 16A is within the range 20, and the first mobile communication device 16A receives the search request broadcast by the second mobile communication device 16B, then the first mobile communication device 16A may broadcast the first rescue request as in the above example, indicating that it is the object of the search request.

In practical application, before the first mobile communication device 16A receives the search request, once the power of the first mobile communication device 16A is lower than a preset threshold, in order to save power, the first mobile communication device 16A can stop Actively broadcast the first rescue request, and enter a signal-only mode. Until the first mobile communication device 16A receives the search request broadcast by the second mobile communication device 16B, the first mobile communication device 16A actively responds to the search request and starts broadcasting the first rescue request.

Once the official or private rescue agencies get enough rescue information, they can ask the telecom operators to stop the base station 12 from broadcasting search requests.

According to the present invention, the mobile communication devices can transmit rescue information to each other without a base station. Since the total number of mobile communication devices and the possible range are much higher than the base station, even if the mobile communication device sending the distress signal is outside the communication area of the base station, the distress message can be transmitted to the base station through other nearby mobile communication devices . Thereby, the present invention can overcome the problem in the prior art that the efficiency of help-seeking and rescue is reduced due to communication difficulties.

Through the above detailed description of the preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various modifications and equivalent arrangements within the scope of the appended claims of the present invention.

Claims (13)

1. A method for transmitting a rescue message in a wireless communication system, the wireless communication system comprising a base station, a first mobile communication device and a second mobile communication device, the base station has a communication area, the first mobile The communication device is outside the communication area, and the method includes: broadcasting a first rescue request by the first mobile communication device; Once the second mobile communication device receives the first rescue request, the second mobile communication device generates a second rescue request according to the first rescue request, and stores the second rescue request in the second mobile communication device in; and Once the second mobile communication device is within the communication area, the second mobile communication device sends the second rescue request to the base station. 2. The method of claim 1, wherein the first rescue request includes a location information, an image, a recording or a text related to the first mobile communication device. 3. The method of claim 1, wherein the second rescue request includes a location information, an image, a recording or a text related to the second mobile communication device. 4. The method of claim 1, wherein the first rescue request is broadcast through a broadcast control channel. 5. The method of claim 1, further comprising: broadcasting a search request by the base station; once the second mobile communication device receives the search request broadcast by the base station, the second mobile communication device broadcasts the search request; and Once the first mobile communication device receives the search request broadcast by the second mobile communication device, the first mobile communication device broadcasts the first rescue request. 6. The method of claim 5, wherein the search request is broadcast via a broadcast control channel. 7. The method of claim 5, further comprising: Before the first mobile communication device receives the search request, once a power of the first mobile communication device falls below a preset threshold, the first mobile communication device stops broadcasting the first rescue request and enters a mode for receiving signals only; and Once the first mobile communication device receives the search request, the first mobile communication device broadcasts the first rescue request. 8. A wireless communication system, comprising: a base station, the base station has a communication area; A first mobile communication device, the first mobile communication device is outside the communication area, once a user sets the first mobile communication device to an emergency mode, the first mobile communication device broadcasts a first rescue request; and A second mobile communication device, once the second mobile communication device receives the first rescue request, the second mobile communication device generates a second rescue request according to the first rescue request, and stores the second rescue request In the second mobile communication device, once the second mobile communication device is within the communication area, the second mobile communication device sends the second rescue request to the base station. 9. The wireless communication system as claimed in claim 8, wherein once the base station broadcasts a search request, and the second mobile communication device receives the search request broadcast by the base station, the second mobile communication device broadcasts the search request A search request, and once the first mobile communication device receives the search request broadcast by the second mobile communication device, the first mobile communication device broadcasts the first rescue request. 10. The wireless communication system as claimed in claim 8, wherein the first rescue request may include a location information, an image, a recording or a text related to the first mobile communication device. 11. The wireless communication system as claimed in claim 8, wherein the second rescue includes the first rescue request, and may include a location information, an image or a recording-text related to the second mobile communication device. 12. The wireless communication system as claimed in claim 8, wherein the first rescue request is broadcast through a broadcast control channel. 13. The wireless communication system of claim 8, wherein the search request is broadcast through a broadcast control channel.

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