KR20090061505A - Wireless communication device and method for controling communication thereof - Google Patents

Wireless communication device and method for controling communication thereof Download PDF

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Publication number
KR20090061505A
KR20090061505A KR1020070128532A KR20070128532A KR20090061505A KR 20090061505 A KR20090061505 A KR 20090061505A KR 1020070128532 A KR1020070128532 A KR 1020070128532A KR 20070128532 A KR20070128532 A KR 20070128532A KR 20090061505 A KR20090061505 A KR 20090061505A
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KR
South Korea
Prior art keywords
communication terminal
wireless communication
wireless
terminal
road
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KR1020070128532A
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Korean (ko)
Inventor
최원준
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엘지전자 주식회사
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Priority to KR1020070128532A priority Critical patent/KR20090061505A/en
Publication of KR20090061505A publication Critical patent/KR20090061505A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication terminal and a method for controlling communication in the wireless communication terminal, and for example, to any particular radio located adjacent to each other through a peer-to-peer method of a wireless mesh network. In a wireless communication terminal which communicates directly with a communication terminal, when a possibility of disconnection with the specific wireless communication terminal is predicted, a communication path with another wireless communication terminal located adjacent to the neighbor is searched in advance, and when the communication is disconnected, the advance By quickly performing communication with other discovered wireless communication terminals, it is possible to effectively prevent an error in data transmission / reception operation due to a disconnection of communication with a specific wireless communication terminal located nearby.

Description

Wireless communication terminal and method for controlling communication in wireless communication terminal

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication terminal and a communication control method in the wireless communication terminal. For example, in a wireless mesh network, a wireless communication terminal is located adjacent to each other through a peer-to-peer method. A wireless communication terminal communicating directly with a terminal and a communication control method in the wireless communication terminal.

FIG. 1 illustrates a wireless mesh network architecture. The wireless mesh network connects the same homogeneous network and different heterogeneous networks, and is also connected to the Internet. .

For example, as shown in FIG. 1, mesh routers forming a wireless mesh backbone include Wi-Fi Networks, WiMax Networks, Cellular Networks, Sensor Networks, Ad-Hoc Networks, and the like. In order to enable communication between the same various networks, it will act as a gateway and a bridge.

On the other hand, since the wireless mesh network is capable of multi-hop and multi-link, it is possible to efficiently extend the wireless communication range and to select various communication paths, thereby increasing the reliability of data transmission.

For example, as shown in FIG. 2, the first wireless mesh terminal 11 performs wireless communication with a second wireless mesh terminal 12 located adjacent to each other through a peer-to-peer method. The second wireless mesh terminal 12 performs a wireless communication with a fourth wireless mesh terminal 14 adjacent to each other through a peer-to-peer method, thereby enabling the first wireless mesh terminal 11 and the fourth wireless mesh. Communication between terminals 14 takes place via the second wireless mesh terminal 12.

On the other hand, in the first wireless mesh terminal 11, if the wireless communication is disconnected due to the movement of the second wireless mesh terminal 12, for example, a third wireless mesh located adjacent to each other through a peer-to-peer method. The wireless communication with the terminal 13 is performed, and the third wireless mesh terminal 13 performs wireless communication with an adjacently located fourth wireless mesh terminal 14 through a peer-to-peer method. Communication between the mesh terminal 11 and the fourth wireless mesh terminal 14 is performed through the third wireless mesh terminal 13.

However, since the first wireless mesh terminal 11 searches for other wireless communication terminals located in the vicinity after the communication with the second wireless mesh terminal 12 is disconnected as described above, the first wireless mesh terminal ( The communication path between the first wireless mesh terminal 11 and the fourth wireless mesh terminal 14 is temporarily disconnected until communication between 11) and the third wireless mesh terminal 13 is started.

Accordingly, the present invention has been made to solve the above problems, for example, in a wireless communication terminal, if the possibility of communication disconnection is predicted, a communication path with another wireless communication terminal is searched in advance, and then when the communication is disconnected. Another object of the present invention is to provide a wireless communication terminal and a communication control method in the wireless communication terminal so as to quickly perform communication with another previously discovered wireless communication terminal.

Wireless communication terminal according to the present invention for achieving the above object, Communication means for performing direct communication with any wireless communication terminal; Detection means for detecting location information received from the arbitrary wireless communication terminal; Predicting means for predicting the possibility of disconnection with the arbitrary wireless communication terminal based on the location information; And when the possibility of the communication disconnection is predicted, after searching for a communication path with any other wireless communication terminal in advance, and if the communication with the any wireless communication terminal is disconnected, the communication with any other wireless communication terminal is terminated. To be carried out, characterized in that it comprises a control means for controlling the communication means,

In addition, the wireless communication terminal according to the present invention, communication means for performing direct communication with any wireless communication terminal; Detection means for detecting a signal strength received from said any wireless communication terminal; Predicting means for predicting a possibility of disconnection with the arbitrary wireless communication terminal based on the signal strength; And when the possibility of the communication disconnection is predicted, after searching for a communication path with any other wireless communication terminal in advance, and when the communication with the any wireless communication terminal is disconnected, the communication with the other other wireless communication terminal is performed. It characterized in that it comprises a control means for controlling the communication means,

In addition, the communication control method in a wireless communication terminal according to the present invention, in the first step of predicting the possibility of disconnection with the first wireless communication terminal, while performing a direct communication with the first wireless communication terminal ; A step of searching for a communication path with a second wireless communication terminal in advance if the possibility of communication disconnection is predicted as a result of the prediction; And when the communication with the first wireless communication terminal is cut off, performing the communication with the previously discovered second wireless communication terminal.

The wireless communication terminal is a wireless mesh communication terminal to which a peer-to-peer direct communication method is applied, and the location information is a response (ACK) received from the first wireless communication terminal. ) Is included in the signal.

The wireless communication terminal and the communication control method in the wireless communication terminal according to the present invention are any particular wireless communication terminal located adjacent to each other, for example, through a peer-to-peer method of a wireless mesh network. In a wireless communication terminal which communicates directly with a wireless communication terminal, when a possibility of communication disconnection with the specific wireless communication terminal is predicted, a communication path with another wireless communication terminal located nearby is searched in advance, and when the communication is disconnected, the previously searched communication path is detected. By quickly performing communication with other wireless communication terminals, it is possible to effectively prevent an error in data transmission / reception operation due to a disconnection of communication with a specific wireless communication terminal located nearby.

Hereinafter, exemplary embodiments of a wireless communication terminal and a communication control method in the wireless communication terminal according to the present invention will be described in detail with reference to the accompanying drawings.

4 illustrates a schematic configuration of a wireless communication terminal according to the present invention. For example, in the wireless mesh terminal to which the present invention is applied, a peer-to-peer scheme is used in a wireless mesh network. A wireless mesh module 201 for direct communication with adjacent wireless communication terminals via; A display module (202) for displaying information transmitted and received via the wireless mesh module; In addition, a control unit 203 is configured to control the operation of the wireless mesh module 201 and the display module 202.

In addition, the wireless mesh terminal 20 includes: a GPS module 204 for receiving a Global Position System (GPS) signal and detecting a current terminal position; In addition, a navigation module 205 for searching a navigation map image corresponding to the detected terminal location may be further included or connected.

The control unit 203 includes, for example, a controller 2031 for controlling the wireless mesh module 201, as shown in FIG. A detector (2032) for detecting position information (Object_Position_Info) of a specific wireless terminal in a response (ACK) signal received through the wireless mesh module; And referring to the location information of the specific wireless terminal, the terminal location information detected by the GPS module 205, and the navigation data retrieved by the navigation module 204, the possibility of disconnection with the specific wireless terminal is determined. It may be configured with a predictor 2033 for predicting.

In addition, the controller 2031, the detector 2032, and the predictor 2033 may be integrated into one hardware or software, or may be separately configured into separate hardware or software. The detector 2032 detects, for example, position information of the opposite wireless communication terminal from a response (ACK) signal received through the wireless mesh module 201.

On the other hand, as shown in FIG. 6, for example, a header region, a payload region, and a CRC region may be allocated to the response signal. At least one of a device ID (Devcie_ID), a location information flag (Position Info_Flag), a road code flag (Road Code_Flag), a country code flag (Country Code_Flag), a speed code flag (Velocity Code_Flag), and an RFID flag (RFID_Flag) This is recorded including.

Further, in the payload area, position information (Position_Info.) Indicating the GPS coordinate values (X, Y, Z) of the opposite wireless terminal, and a road code indicating the road number where the opposite wireless terminal is located. ), A country code indicating the name of the country where the other party's wireless terminal is located, a velocity code indicating the communication speed of the other party's wireless terminal, and the RFID module in the other party's wireless terminal. Any one or more of RFID information (RFID_Info) for indicating information on the RFID module is recorded.

And, in association with the flag value of the header area, information of the payload area is selectively recorded. For example, the location information is recorded mandatory, and other information, Optionally, it may or may not be recorded.

Meanwhile, in the first embodiment according to the present invention, the detector 2032 detects the position information of the other side wireless communication terminal from the response (ACK) signal received through the wireless mesh module 201, thereby predicting the predictor ( 2033, and the predictor 2033 compares the current position information of the terminal detected by the GPS module 205 with the position information of the counterpart communication terminal to predict a possibility of communication disconnection. .

For example, as shown in FIG. 7, in a state where the radio communication terminal 20 to which the present invention is applied is mounted in the vehicle A, and the partner radio communication terminal is mounted in the vehicle B, peer-to-peer. During direct communication through the Peer To Peer method, the detector 2032 detects the position information included in the response (ACK) signal of the counterpart wireless communication terminal.

In addition, the predictor 2033 continuously compares the position information detected by the response signal with the position information of the terminal detected by the GPS module, so that the vehicle A and the vehicle B are gradually separated from each other. After the calculation, if the calculated angle exceeds a preset reference angle (for example, 45 degrees), it is possible to predict the possibility of disconnection with the wireless communication terminal mounted in the vehicle B.

On the other hand, when the possibility of communication disconnection is predicted as described above, the predictor 2033 outputs a signal corresponding thereto, for example, Cut_Predict_High signal indicating the possibility of communication disconnection, to the controller 2031, and when the possibility of communication disconnection is not predicted. The controller 2031 outputs a Cut_Predict_Low signal indicating that there is no possibility of communication disconnection.

When the Cut_Predict_High signal is input from the predictor 2033, the controller 2031 may control the wireless mesh module 201 to perform a series of operations for searching for another adjacent wireless communication terminal in advance. If a communication break occurs afterwards, communication with the other previously discovered wireless communication terminal is quickly performed.

For example, as shown in FIG. 7, when the vehicle A makes a right turn at the intersection and the vehicle B makes the right turn, the separation angle exceeds the reference angle (for example, 45). In the wireless communication terminal, after searching in advance the wireless communication terminal of the vehicle C, which travels in the same direction by going straight from the other direction of the intersection, and immediately after the communication with the wireless communication terminal of the vehicle B is disconnected, the wireless communication terminal of the vehicle C immediately. In the wireless mesh network, it is possible to effectively prevent an error in data transmission / reception operation due to a communication disconnection with a neighboring wireless communication terminal in the wireless mesh network.

On the other hand, in the second embodiment according to the present invention, the detector 2032 detects the position information of the other side wireless communication terminal from the response (ACK) signal received through the wireless mesh module 201, the predictor ( 2033, wherein the predictor 2033 refers to the location information of the counterpart wireless communication terminal and the navigation data provided by the navigation module 204 to obtain the number of the road where the counterpart wireless communication terminal is located. Alternatively, as described above with reference to FIG. 6, when a road code exists in the response signal, the road code is detected by the number of the road where the opposite wireless communication terminal is located.

In addition, the predictor 2033 refers to the navigation data provided by the navigation module 204 and the current location information of the terminal detected by the GPS module 205, and indicates the number of the road where the terminal is currently located. After detecting, the number is compared with the number of the road where the counterpart wireless communication terminal is located.

As a result of the comparison, when the road numbers are different from each other, for example, as shown in FIG. 7, the wireless communication terminal 20 to which the present invention is applied is mounted on the vehicle A, and the counterpart wireless communication terminal is When the vehicle A makes a right turn at the intersection and immediately before the vehicle B is in the state of being mounted in the vehicle B while directly communicating through a peer-to-peer method, the road number is changed.

Therefore, in the wireless communication terminal mounted in the vehicle A, after searching in advance the wireless communication terminal of the vehicle C which travels on the same number of roads in different directions of the intersection, the communication with the wireless communication terminal of the vehicle B is cut off. In this case, since the communication is immediately performed with the wireless communication terminal of the vehicle C, it is possible to effectively prevent an error in the data transmission / reception operation due to the communication disconnection with the adjacent wireless communication terminal in the wireless mesh network.

On the other hand, in the third embodiment according to the present invention, the detector 2032 detects the position information of the opposite wireless communication terminal from the response (ACK) signal received through the wireless mesh module 201, and predicts ( 2033, and the predictor 2033 compares the current position information of the terminal detected by the GPS module 205 with the position information of the counterpart communication terminal, calculates the separation distance, and then communicates. Predict the possibility of disconnection.

For example, as shown in FIG. 9, in the state where the wireless communication terminal 20 to which this invention is applied is mounted in the vehicle A, and the other side wireless communication terminal is mounted in the vehicle B, it is peer-to-peer. When communicating directly through a peer to peer method, the detector 2032 detects location information included in an acknowledgment (ACK) signal of the counterpart wireless communication terminal.

The predictor 2033 continuously compares the position information detected by the response signal with the position information detected by the GPS module 205 as described above, so that the distance between the vehicle A and the vehicle B is gradually separated. ), When the calculated distance exceeds a preset reference distance (for example, 200 m), it is possible to predict the possibility of disconnection with the wireless communication terminal mounted in the vehicle B.

On the other hand, when the possibility of communication disconnection is predicted as described above, the predictor 2033 outputs a signal corresponding thereto, for example, Cut_Predict_High signal indicating the possibility of communication disconnection, to the controller 2031, and when the possibility of communication disconnection is not predicted. The controller 2031 outputs a Cut_Predict_Low signal indicating that there is no possibility of communication disconnection.

When the Cut_Predict_High signal is input from the predictor 2033, the controller 2031 may control the wireless mesh module 201 to perform a series of operations for searching for another adjacent wireless communication terminal in advance. If a communication break occurs afterwards, communication with the other previously discovered wireless communication terminal is quickly performed.

For example, as shown in FIG. 9, when the vehicle A makes a right turn at the intersection and the vehicle B makes the right turn, the separation distance exceeds the reference distance (for example, 200 m), and thus is mounted on the vehicle A. In the wireless communication terminal, after searching in advance the wireless communication terminal of the vehicle C, which travels in the same direction by going straight from the other direction of the intersection, and immediately after the communication with the wireless communication terminal of the vehicle B is disconnected, the wireless communication terminal of the vehicle C immediately. In the wireless mesh network, it is possible to effectively prevent an error in data transmission / reception operation due to a communication disconnection with a neighboring wireless communication terminal in the wireless mesh network.

On the other hand, Figure 10 shows the configuration of a wireless communication terminal according to a fourth embodiment of the present invention, for example, in the wireless mesh terminal 20 to which the present invention is applied, the wireless mesh module 201 and the control unit 203 and the like, and the control unit 203 may include a controller 2031, a detector 2032, and a predictor 2033.

The detector 2032 detects a response signal received through the wireless mesh module 201, detects a signal intensity of the response signal, and outputs the signal to the predictor 2033.

In addition, the predictor 2033 receives the signal strength and compares the signal strength with a reference signal strength to predict the possibility of disconnection with the other party's wireless communication terminal. For example, the signal strength of the response signal is a reference value. If it is less than the signal strength, it is predicted that there is a possibility of communication disconnection, and outputs the corresponding Cut_Predict_High signal to the controller 2031.

On the other hand, when the signal strength of the response signal is greater than or equal to the reference signal strength, it is predicted that there is no possibility of communication disconnection, and the corresponding Cut_Predict_Low signal is output to the controller 2031, and the controller 2031 may predict the predictor. When the Cut_Predict_High signal is inputted from 2033, the wireless mesh module 201 is operated to perform a series of operations for searching for another adjacent wireless communication terminal in advance, and when a communication disconnection occurs, Communication with other discovered wireless communication terminals is performed quickly.

Accordingly, in the wireless mesh network, it is possible to effectively prevent an error from occurring in the data transmission / reception operation due to the communication disconnection with the adjacent wireless communication terminal.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

1 illustrates a wireless mesh network architecture,

2 illustrates a first embodiment to which a Peer To Peer communication scheme is applied;

3 illustrates a second embodiment to which a Peer To Peer communication scheme is applied;

4 shows a schematic configuration of a wireless communication terminal according to the present invention,

5 shows a part of a configuration of a wireless communication terminal according to the present invention,

6 illustrates an embodiment of a response signal received by a wireless communication terminal according to the present invention;

7 shows a communication control process according to the first embodiment of the present invention,

8 illustrates a communication control process according to a second embodiment of the present invention,

9 illustrates a communication control process according to a third embodiment of the present invention,

10 shows a configuration of a wireless communication terminal according to the fourth embodiment of the present invention.

※ Explanation of code for main part of drawing

10-14,20: wireless mesh terminal 201: wireless mesh module

202: display module 203: control unit

204 GPS Module 205 Navigation Module

2031: controller 2032: detector

2033: predictor

Claims (25)

In the wireless communication terminal, during the direct communication with the first wireless communication terminal, the first step of predicting the possibility of disconnection with the first wireless communication terminal; A step of searching for a communication path with a second wireless communication terminal in advance if the possibility of communication disconnection is predicted as a result of the prediction; And And when the communication with the first wireless communication terminal is interrupted, performing the communication with the previously discovered second wireless communication terminal. The method of claim 1, The wireless communication terminal is a communication control method in a wireless communication terminal, characterized in that a wireless mesh communication terminal to which a peer-to-peer direct communication scheme is applied. The method of claim 1, The first step, In a wireless communication terminal, a first step of receiving location information of the first wireless communication terminal while performing direct communication with the first wireless communication terminal; A second step of calculating an angle spaced from the first wireless communication terminal based on the received location information; And And a lower three step of predicting that the calculated angle can be disconnected from the first wireless communication terminal when the calculated angle is equal to or greater than a preset reference angle. The method of claim 3, wherein The location information is included in a response (ACK) signal received from the first wireless communication terminal, the communication control method in a wireless communication terminal. The method of claim 3, wherein And the angle is gradually increased when the moving progress direction of the wireless communication terminal and the first wireless communication terminal are different from each other. The method of claim 1, The first step, A first step of receiving location information of the first wireless communication terminal during a direct communication with the first wireless communication terminal in the wireless communication terminal; A second step of searching for a road on which the first wireless communication terminal moves based on the received location information; And And if the searched road is different from the road to which the wireless communication terminal moves, a lower three step of estimating that communication with the first wireless communication terminal is possible. . The method of claim 6, The location information is included in a response (ACK) signal received from the first wireless communication terminal, the communication control method in a wireless communication terminal. The method of claim 6, And the road is searched by a navigation module included in or connected to the wireless communication terminal. The method of claim 6, The first step, A first step of detecting road information included in a response signal received from the first wireless communication terminal while performing a direct communication with the first wireless communication terminal in the wireless communication terminal; And After determining the road to which the first wireless communication terminal moves based on the detected road information, if the determined road is different from the road to which the wireless communication terminal moves, the first wireless communication terminal is connected to the first wireless communication terminal. And a lower two step of predicting that the communication can be disconnected. The method of claim 1, The first step, In a wireless communication terminal, a first step of receiving location information of the first wireless communication terminal while performing direct communication with the first wireless communication terminal; A second step of calculating a separation distance from the first wireless communication terminal based on the received location information; And And a lower three step of estimating communication disconnection with the first wireless communication terminal when the calculated separation distance is greater than or equal to a predetermined reference distance. The method of claim 10, The location information is included in a response (ACK) signal received from the first wireless communication terminal, the communication control method in a wireless communication terminal. The method of claim 1, The first step, A first step of detecting a signal strength received from the first wireless communication terminal while performing a direct communication with the first wireless communication terminal in the wireless communication terminal; And And a lower two step of predicting that the detected signal strength is less than or equal to a preset reference signal strength, that communication with the first wireless communication terminal is possible. The method of claim 12, And the signal strength is a signal strength of an acknowledgment (ACK) signal received from the first wireless communication terminal. Communication means for performing direct communication with any wireless communication terminal; Detection means for detecting location information received from the arbitrary wireless communication terminal; Predicting means for predicting the possibility of disconnection with the arbitrary wireless communication terminal based on the location information; And When the possibility of the communication disconnection is predicted, the communication path with any other wireless communication terminal is searched in advance, and when the communication with the any wireless communication terminal is disconnected, the communication with the other other wireless communication terminal is performed. And control means for controlling the communication means. The method of claim 14, The communication means is a wireless communication terminal, characterized in that the wireless mesh (Wireless Mesh) communication module to which a peer-to-peer direct communication scheme is applied. The method of claim 14, The predicting means, based on the position information, calculates an angle spaced from the arbitrary radio communication terminal, and predicts that the communication can be disconnected if the calculated angle is equal to or greater than a preset reference angle. Wireless communication terminal. The method of claim 16, And the location information is included in an acknowledgment (ACK) signal received from the arbitrary wireless communication terminal. The method of claim 14, The predicting means, based on the location information, searches for a road to which the arbitrary wireless communication terminal moves, and then predicts that the searched road is capable of disconnection when the searched road is different from the road to which the communication means moves. A wireless communication terminal characterized by the above. The method of claim 18, And the position information is included in an ACK signal received from the first wireless communication terminal. The method of claim 18, And said road is searched by a navigation module which is operation controlled by said control means. The method of claim 14, The predicting means, based on the positional information, calculates the separation distance with the arbitrary radio communication terminal, and if the calculated distance is greater than or equal to a preset reference distance, it is predicted that communication can be disconnected. Wireless communication terminal. The method of claim 21, And the location information is included in an acknowledgment (ACK) signal received from the arbitrary wireless communication terminal. Communication means for performing direct communication with any wireless communication terminal; Detection means for detecting a signal strength received from said any wireless communication terminal; Predicting means for predicting a possibility of disconnection with the arbitrary wireless communication terminal based on the signal strength; And When the possibility of the communication disconnection is predicted, the communication path with any other wireless communication terminal is searched in advance, and when the communication with the any wireless communication terminal is disconnected, the communication with the other other wireless communication terminal is performed. And control means for controlling the communication means. The method of claim 23, wherein The communication means is a wireless communication terminal, characterized in that the wireless mesh (Wireless Mesh) communication module to which a peer-to-peer direct communication scheme is applied. The method of claim 23, wherein And the predicting means predicts that, when the signal strength is equal to or less than a preset reference signal strength, communication disconnection with the arbitrary wireless communication terminal is possible.
KR1020070128532A 2007-12-11 2007-12-11 Wireless communication device and method for controling communication thereof KR20090061505A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150066437A (en) * 2013-12-06 2015-06-16 삼성전자주식회사 Device communication system with proximity synchronization mechanism and method of operation thereof
CN104919723A (en) * 2012-12-12 2015-09-16 Lg电子株式会社 Method for transmitting/receiving information related to association identifier in wireless communication system and device therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104919723A (en) * 2012-12-12 2015-09-16 Lg电子株式会社 Method for transmitting/receiving information related to association identifier in wireless communication system and device therefor
US9736871B2 (en) 2012-12-12 2017-08-15 Lg Electronics Inc. Method for transmitting/receiving information related to association identifier in wireless communication system and device therefor
KR20150066437A (en) * 2013-12-06 2015-06-16 삼성전자주식회사 Device communication system with proximity synchronization mechanism and method of operation thereof

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