KR100681922B1 - Radio relay system and method and mobile communication terminal for same - Google Patents

Abstract

A radiowave relay system and method, and a mobile terminal for the same are provided to transfer radiowaves to a mobile terminal having a low RSSI(Received Signal Strength Indicator) value, as the mobile terminal is located in a cell boundary area, thereby offering voice or multimedia services to users with good radiowave quality. A radiowave quality checking part in a radiowave relay system checks the radiowave quality of each mobile terminal in the coverage of a cell(S101). Then, the quality checking part confirms whether the RSSI of a specific mobile terminal drops below a preset level(S103). In case RSSI of the specific mobile terminal drops below the preset level, the quality checking part informs a relay terminal selection part that RSSI of the specific mobile terminal is getting lowered below the preset level. The relay terminal selection part selects a relay mobile terminal for relaying radiowaves to the specific terminal according to preset conditions(S105). A radiowave transmitting part transmits radiowaves, including ID information of the specific mobile terminal, to the selected relay mobile terminal so that the radio waves can be transferred to the specific mobile terminal(S107).

Description

Radio system and method and a mobile communication terminal for the same {Relay System and Method for Electric Wave and Mobile Communication Terminal therefor}

1 is a view for explaining the radio wave strength for each location in a conventional mobile communication network,

2 is a view showing a connection between a radio wave relay system and a communication network according to the present invention;

3 is a view for explaining a radio wave relay method in a mobile communication network according to the present invention;

4 is a view showing in detail the configuration of a radio wave relay system according to the present invention;

5 is a view showing in detail the configuration of a mobile communication terminal according to the present invention;

6 is a flowchart illustrating a radio wave relay method in a radio wave relay system according to the present invention;

7 is a flowchart illustrating a radio wave relay method in a mobile communication terminal according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: mobile communication terminal 110: control unit

120: input unit 130: memory

140: wireless communication unit 150: display unit

160: output unit 170: radio wave relay unit

200: base station / base station controller 300: switchboard

400: radio wave relay system 410: radio wave quality check unit

430: relay terminal selection unit 450: radio wave transmission unit

470: database 471: subscriber information DB

473: Radio wave quality information DB

The present invention relates to a radio relay system and method and a mobile communication terminal for the same, and more particularly to a radio relay system and method for improving the radio wave quality of a mobile communication terminal located in a mobile communication network and a mobile communication terminal for the same will be.

As the 3G mobile communication has evolved, the service provided to the mobile communication terminal requires a higher quality radio wave environment.

In particular, in order for a mobile communication network to provide a high speed multimedia service to a mobile communication terminal, it is necessary to supply several times more base station power than a voice service.

However, as shown in FIG. 1, the mobile communication terminal 100-2 located at the boundary of the cell has a reception power of radio waves transmitted from the base station as compared to the mobile communication terminal 100-1 located closer to the base station. Because of the weakness, it often happens that a smooth service cannot be provided when using a voice or multimedia service.

In order to improve this, increasing the transmission power of the base station can provide sufficient radio wave to the mobile communication terminal located in the boundary area far from the base station, but it can not increase indefinitely because it may act as a noise to other cells.

Therefore, the network operator has to install more base stations or repeaters. In this case, the cost burden of the operator increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and when the radio wave quality of the mobile communication terminal located in the mobile communication network is measured in real time and the radio wave reception power is lowered below a predetermined value, the radio wave reception power is relatively There is a technical problem to provide a radio relay system and method for relaying radio waves to a corresponding mobile communication terminal through a high mobile communication terminal and a mobile communication terminal for the same.

The present invention for achieving the above object is a radio wave relay system connected to the mobile communication network, to improve the radio wave quality of the mobile communication terminal located in the cell area,

A control unit controlling the overall operation of the radio relay system; A database for storing information related to the radio relay system under control of the controller; Under the control of the controller, the radio wave quality of each mobile communication terminal is checked based on information transmitted from a plurality of mobile communication terminals located in a specific cell area, and the radio wave reception power of the specific mobile communication terminal is lower than a predetermined level. A propagation quality check unit for informing the corresponding configuration of the propagation relay system when it loses; When receiving the information indicating that the radio wave reception power of the specific mobile communication terminal transmitted from the radio wave quality checker is lower than a preset level, the mobile communication is performed according to a preset condition among a plurality of mobile communication terminals registered in the database. A relay terminal selecting unit selecting a relay terminal to transmit radio waves to the terminal; And a radio wave transmitting unit for transmitting a radio wave including identification information of the corresponding mobile communication terminal to relay the radio wave to the relay mobile communication terminal selected as the relay terminal by the relay terminal selecting unit and transmitting the radio wave to the mobile communication terminal. .

Another embodiment of the present invention is a mobile communication terminal connected to a mobile communication network and configured to receive and transmit radio waves of another mobile communication terminal transmitted from a radio relay system for managing radio wave quality of a mobile communication terminal located in a cell area.

A radio wave relay unit for receiving a radio wave including an identification number of another mobile communication terminal to relay the radio wave transmitted from the radio wave relay system, based on the identification number of the other mobile communication terminal; Include.

Another embodiment of the present invention is a radio relay method using a radio relay system for improving radio wave quality of a mobile communication terminal located in a cell area connected to a mobile communication network, wherein the radio relay system includes a plurality of radio relay service services. And a database for storing mobile communication terminal information.

a) Checking the radio wave quality of each mobile communication terminal based on information transmitted from a plurality of mobile communication terminals located in the cell area, and if the radio wave reception power of a specific mobile communication terminal is lowered below a preset level, it propagates Informing the corresponding configuration of the relay system; b) a relay for transmitting radio waves to the mobile communication terminal according to a preset condition among a plurality of mobile communication terminals registered in the database when receiving information indicating that the radio wave reception power of the specific mobile communication terminal is lowered below a preset level. Selecting a terminal; and c) transmitting a radio wave including identification information of the corresponding mobile communication terminal to relay the radio wave to the relay mobile communication terminal selected as the relay terminal to transmit to the mobile communication terminal.

In another aspect of the present invention, a radio wave relay using a mobile communication terminal connected with a mobile communication network to receive and transmit radio waves of another mobile communication terminal transmitted from a radio wave relay system for managing radio wave quality of a mobile communication terminal located in a cell area. As a method,

a) receiving a radio wave including an identification number of another mobile communication terminal to relay a radio wave transmitted from the radio wave relay system; b) transmitting the radio wave received in step a) to the corresponding mobile communication terminal based on the identification number of the other mobile communication terminal.

Reference number 100-1 disclosed in the detailed description of the present invention designates a mobile communication terminal selected as a relay terminal because radio wave reception power is relatively higher than that of other mobile communication terminals, and reference number 100-2 is a radio wave reception power. The description will be limited to the mobile communication terminal which is below the set level.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating a connection relationship between a radio wave relay system and a communication network according to the present invention, which will be described with reference to FIG. 3 for describing a radio wave relay method in a mobile communication network.

The radio wave relay system 400 may receive radio waves through other mobile communication terminals 100-1 when the radio wave reception power is low, or transmit radio waves to the mobile communication terminal 100-2 with low radio wave reception power. Register a plurality of user information using the service, and check the radio wave quality of the plurality of mobile communication terminals (100-1, 100-2) located in the cell area through the mobile communication network (200, 300) to receive radio wave reception power If it is less than the set level to transmit the radio wave to the corresponding mobile communication terminal (100-2).

Here, the radio relay system 400 may be implemented together in the same configuration as the configuration of the base station or base station controller 200 according to the needs of the operator.

That is, the radio relay method will be briefly described with reference to FIG. 2 as follows.

It will be described under the assumption that the base station 200 illustrated in FIG. 2 includes the radio relay system 400.

While the base station 200 checks the radio wave quality of the plurality of mobile communication terminals 100-1 and 100-2 located in the cell area, the radio wave reception power of the specific mobile communication terminal 100-2 is lower than or equal to a preset level. When detecting the decrease, the mobile communication terminal 100-1 having good radio wave quality is selected as a relay terminal, and the radio wave reception power is low through the relay mobile communication terminal 100-1 to the mobile communication terminal 100-2. Transmit radio waves.

Here, the base station 200 transmits a radio wave of the mobile communication terminal 100-2 to the relay mobile communication terminal 100-1, and transmits the radio wave to the mobile communication terminal 100-2.

4 is a view showing in detail the configuration of a radio wave relay system according to the present invention.

As shown, the radio wave relay system 400 includes a control unit 410, a database 490, a radio wave quality checker 430, a relay terminal selector 450, and a radio wave transmitter 470.

In more detail, the database 490 includes a subscriber information DB 471 for storing subscriber information for subscribing to a radio relay service under the control of the controller 410 and the propagation of the mobile communication terminal 100 located in a cell area. A radio wave quality information DB 473 that stores quality information is stored.

The radio wave quality checker 430 controls the radio wave quality of each mobile communication terminal based on information transmitted from a plurality of mobile communication terminals 100-1 and 100-2 located in a specific cell area under the control of the controller 410. Check and, if the radio wave reception power of the specific mobile communication terminal (100-2) is lower than the predetermined level, it notifies the relay terminal selection unit 470. Here, the information transmitted from the plurality of mobile communication terminals is radio wave quality report information transmitted at predetermined intervals or multimedia service (for example, video call or high-speed multimedia service) request information.

When the relay terminal selecting unit 450 receives the information indicating that the radio wave reception power of the specific mobile communication terminal 100-2 transmitted from the radio wave quality checking unit 430 is lower than or equal to a preset level, the relay terminal selecting unit 450 receives the information in the database 490. Among the plurality of registered mobile communication terminals, a relay terminal to transmit radio waves to the mobile communication terminal 100-2 is selected according to a preset condition.

Here, the relay terminal selecting unit 450 selects the relay terminal based on the priority of the highest radio wave reception power among the plurality of mobile communication terminals registered in the database 490. In addition, the relay terminal selecting unit 450 selects a relay terminal based on a terminal that does not currently use voice and multimedia services when selecting a relay terminal.

The radio wave transmitting unit 470 transmits and moves a radio wave including identification information of the corresponding mobile communication terminal to relay the radio wave to the relay mobile communication terminal 100-1 selected as the relay terminal by the relay terminal selecting unit 450. Transfer to the communication terminal (100-2).

When the relay mobile communication terminal 100-1 receives a radio wave including identification information of the mobile communication terminal 100-2 transmitted from the radio wave transmitting unit 470, identification information of the mobile communication terminal 100-2 is received. The radio wave is transmitted to the mobile communication terminal 100-2 based on the. Here, the relay mobile communication terminal 100-1 transmits the radio wave transmitted from the radio wave transmitting unit 470 directly to the corresponding mobile communication terminal 100-2 without performing a modulation / demodulation procedure.

5 is a view showing in detail the configuration of a mobile communication terminal according to the present invention.

As illustrated, the mobile communication terminal 100 includes a control unit 110, an input unit 120, a memory 130, a wireless communication unit 140, a display unit 150, an output unit 160, and a radio wave relay unit 170. It includes.

The control unit 110 for controlling the overall operation of the mobile communication terminal 100, the input unit 120 for input control of the mobile communication terminal 100, the memory 130 for storing various data, perform wireless communication The wireless communication unit 140 for displaying, the display unit 150 for indicating the current state of the mobile communication terminal or the event processing state requested by the user, and the output unit 160 for providing audible data necessary for using a voice call service or data service. ) Is a general configuration of a mobile communication terminal, so a detailed description thereof will be omitted.

When the radio wave relay unit 170 receives a radio wave including an identification number of another mobile communication terminal 100-2 to relay the radio wave transmitted from the radio relay system 400, the other radio communication terminal 100-2 is received. Based on the identification number of the transmission to the corresponding mobile communication terminal (100-2).

6 is a flowchart illustrating a radio wave relay method in a radio wave relay system according to the present invention.

The radio wave quality checking unit 430 of the radio wave relay system 400 checks the radio wave quality of each mobile communication terminal based on information transmitted from a plurality of mobile communication terminals 100-1 and 100-2 located in a cell area. (S101). Herein, the information transmitted from the plurality of mobile communication terminals is radio wave quality report information or multimedia service request information transmitted every predetermined period.

Thereafter, the radio wave quality checker 430 checks radio wave quality of each mobile communication terminal in step S101 to determine whether the radio wave reception power of the specific mobile communication terminal is lower than a predetermined level (S103).

As a result of step S103, when the radio wave reception power of the specific mobile communication terminal is lowered below a preset level, the relay terminal selecting unit 450 may receive the radio wave reception power of the specific mobile communication terminal transmitted from the radio wave quality checker 430. When receiving information indicating that the level is lower than the set level, a relay terminal to transmit radio waves to the mobile communication terminal 100-2 is selected according to a preset condition among a plurality of mobile communication terminals registered in the database 490 ( S105).

Here, the relay terminal selecting unit 450 selects the relay terminal based on the priority of the highest radio wave reception power among the plurality of mobile communication terminals registered in the database 490. In addition, the relay terminal selecting unit 450 selects a relay terminal based on a terminal that does not currently use voice and multimedia services when selecting a relay terminal.

The radio wave transmitting unit 470 transmits a radio wave including identification information of the corresponding mobile communication terminal 100-2 to relay the radio wave to the relay mobile communication terminal selected as the relay terminal in step S105. To be delivered (S107).

When the relay mobile communication terminal 100-1 receives a radio wave including identification information of the mobile communication terminal 100-2 transmitted from the radio wave transmitting unit 470, identification information of the mobile communication terminal 100-2 is received. The radio wave is transmitted to the mobile communication terminal 100-2 based on the. Here, the relay mobile communication terminal 100-1 transmits the radio wave transmitted from the radio wave transmitting unit 470 directly to the corresponding mobile communication terminal 100-2 without performing a modulation / demodulation procedure.

On the other hand, when there is no terminal with a low radio wave reception power of a plurality of mobile communication terminals as a result of the step S103, the radio relay system 400 performs the operation after step S101.

7 is a flowchart illustrating a radio wave relay method in a mobile communication terminal according to the present invention.

The mobile communication terminal 100 receives a radio wave including an identification number of another mobile communication terminal 100-2 to relay the radio wave transmitted from the radio wave relay system 400 (S201).

Subsequently, the mobile communication terminal 100 transmits the radio wave received in step S201 to the corresponding mobile communication terminal 100-2 based on the identification number of the other mobile communication terminal 100-2 (S203).

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the radio relay system and method of the present invention and a mobile communication terminal therefor may be located at a cell boundary to transmit radio waves to a mobile communication terminal having low radio wave reception power or low radio wave reception power for other reasons. This has the advantage that the user can use the voice or multimedia services in a good radio wave quality.

Claims (14)

A radio wave relay system connected to a mobile communication network to improve radio wave quality of a mobile communication terminal located within a cell area, A control unit controlling the overall operation of the radio relay system; A database for storing information related to the radio relay system under control of the controller; Under the control of the controller, the radio wave quality of each of the mobile communication terminals is checked based on information transmitted from a plurality of mobile communication terminals located in a specific cell area, and the radio wave reception power of the specific mobile communication terminal is lower than a predetermined level. A propagation quality check unit for informing the corresponding configuration of the propagation relay system when it loses; When receiving the information indicating that the radio wave reception power of the specific mobile communication terminal transmitted from the radio wave quality checker is lower than a preset level, the mobile communication is performed according to a preset condition among a plurality of mobile communication terminals registered in the database. A relay terminal selecting unit selecting a relay terminal to transmit radio waves to the terminal; And A radio wave transmitting unit for transmitting a radio wave including identification information of the corresponding mobile communication terminal to relay the radio wave to the relay mobile communication terminal selected as the relay terminal by the relay terminal selecting unit and transmitting the radio wave to the mobile communication terminal; Radio relay system comprising a. The method of claim 1, The database registers a plurality of mobile communication terminal information agreed to use the radio relay service, The relay terminal selecting unit selects a relay terminal based on a priority of the highest radio wave reception power among a plurality of mobile communication terminals registered in the database. The method of claim 2, The relay terminal selecting unit further comprises selecting a relay terminal based on a terminal not currently using voice and multimedia services when selecting the relay terminal. The method according to any one of claims 1 to 3, And the information transmitted from the plurality of mobile communication terminals is radio wave quality report information transmitted at predetermined periods or multimedia service request information. The method according to any one of claims 1 to 3, The relay mobile communication terminal, And receiving radio waves including identification information of the mobile communication terminal transmitted from the radio relay system, transmitting radio waves to the corresponding mobile communication terminal based on the identification information of the mobile communication terminal. The method of claim 5, The relay mobile communication terminal, And a radio wave transmitted from the radio wave relay system directly to a corresponding mobile communication terminal without performing a demodulation demodulation procedure. A mobile communication terminal connected with a mobile communication network to receive and transmit radio waves of another mobile communication terminal transmitted from a radio relay system for managing radio wave quality of a mobile communication terminal located in a cell area. A radio wave relay unit for receiving a radio wave including an identification number of another mobile communication terminal to relay radio waves transmitted from the radio wave relay system, based on the identification number of the other mobile communication terminal; Mobile communication terminal comprising a. A radio wave relay method using a radio wave relay system for improving radio wave quality of a mobile communication terminal located in a cell area in connection with a mobile communication network, the radio wave relay system includes information on a plurality of mobile communication terminals that agree to use radio wave relay services. Has a database to store, a) Checking the radio wave quality of each mobile communication terminal based on information transmitted from a plurality of mobile communication terminals located in the cell area, and if the radio wave reception power of a specific mobile communication terminal is lowered below a preset level, it propagates Informing the corresponding configuration of the relay system; b) a relay for transmitting radio waves to the mobile communication terminal according to a preset condition among a plurality of mobile communication terminals registered in the database when receiving information indicating that the radio wave reception power of the specific mobile communication terminal is lowered below a preset level. Selecting a terminal; And c) transmitting a radio wave including identification information of the corresponding mobile communication terminal to relay the radio wave to the relay mobile communication terminal selected as the relay terminal to transmit to the mobile communication terminal; Radio relay method comprising a. The method of claim 8, In step b), And a relay terminal is selected based on a priority of radio wave reception power among the plurality of mobile communication terminals registered in the database. The method of claim 9, And selecting a relay terminal based on a terminal that is not currently using voice and multimedia services when selecting the relay terminal. The method according to any one of claims 8 to 10, And the information transmitted from the plurality of mobile communication terminals is radio wave quality report information transmitted at predetermined periods or multimedia service request information. The method according to any one of claims 8 to 10, The relay mobile communication terminal, And receiving radio waves including identification information of the mobile communication terminal transmitted from the radio relay system, transmitting radio waves to the corresponding mobile communication terminal based on the identification information of the mobile communication terminal. The method of claim 12, The relay mobile communication terminal, A radio wave relay method comprising transmitting a radio wave transmitted from the radio wave relay system directly to a corresponding mobile communication terminal without performing a demodulation demodulation procedure. A radio wave relay method using a mobile communication terminal connected with a mobile communication network to receive and transmit radio waves of another mobile communication terminal transmitted from a radio wave relay system that manages radio wave quality of a mobile communication terminal located in a cell area. a) receiving a radio wave including an identification number of another mobile communication terminal to relay a radio wave transmitted from the radio wave relay system; And b) transmitting the radio wave received in step a) to the corresponding mobile communication terminal based on the identification number of the other mobile communication terminal; Radio relay method comprising a.

Images