JP2005229399A - Radio communication controlling device and controlling method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication controlling device in which operability is improved and power is saved by effectively controlling a power supply in small-power communication, where an access point is installed in a limited area, such as radio LAN; and to provide a method for controlling the radio communication controlling device. <P>SOLUTION: It is determined whether an own apparatus is positioned in the communication area of the access point in a small-power communication radio section 30 provided in the radio communication controlling device 100, by performing setting in advance and comparing communication area information in the access point with detected terminal position information. Based on the determined output, a subcommunication power supply control unit 50 is controlled which supplies power to the small-power communication radio section 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a main communication function such as mobile phone communication for performing wireless communication via a base station, and a sub communication function such as a wireless LAN for performing wireless communication via a predetermined access point in a communication area smaller than the main communication means. In particular, the position of the wireless communication control device is detected, and the sub-communication function is automatically turned on and off based on the detection output to improve operability. In addition, the present invention relates to a wireless communication control device and a control method thereof for achieving power saving.

  Recently, in mobile phones and the like, wireless communication control devices having a low power communication function such as a wireless local area network (LAN) in addition to the original wireless telephone communication function have been proposed.

  In such a wireless communication control device, when communication is performed using the low power communication function, for example, the wireless LAN access point is installed in an area where the wireless LAN access point is limited. Therefore, if the power supply of this low power communication function is always turned on, the power is supplied to the wireless unit of this low power communication function even though communication is impossible. There was a problem that occurred.

  However, if the user turns on the power of the low power communication function every time the user uses the low power communication function, it is necessary to know the position of the access point for the low power communication function. Yes, even if the location of this access point can be known, it may happen that you forget to turn off the power of this low-power communication function.In this case, effective power-saving control cannot be performed, and operability is reduced. There was a problem.

Conventionally, devices shown in Patent Literature 1 and Patent Literature 2 are known as devices for controlling the power source of a mobile phone terminal according to its position.
Japanese Patent Application Laid-Open No. 2002-246977 Japanese Patent Laid-Open No. 11-186955

  However, both Patent Document 1 and Patent Document 2 control the power supply of the original wireless telephone communication function, and power control of low power communication in which an access point is installed in a limited area such as a wireless LAN. Not applicable to

  Accordingly, the present invention provides a wireless communication control apparatus that improves operability and saves power by effectively performing power control of low power communication in which an access point is installed in a limited area such as a wireless LAN. And it aims at providing the control method.

  In order to achieve the above object, the invention of claim 1 includes main communication means for performing wireless communication via a base station and sub-communication for performing wireless communication via a predetermined access point in a communication area smaller than the main communication means. And determining means for determining whether or not the own device is located within the communication area of the access point of the sub-communication means, and based on the determination output of the determination means, Sub-communication power control means for performing power control is provided.

  According to a second aspect of the present invention, in the first aspect of the invention, the determination unit includes a storage unit that stores a position of each access point of the sub-communication unit and a communicable radius as a communication area, and a position of the own device. Position detection means for detecting information, and comparison means for comparing the communication area information of the sub-communication means stored in the storage means with the position information of the own device detected by the position detection means, and the comparison Based on the comparison result of the means, it is determined whether or not the own apparatus is located within the communication area of any access point of the sub-communication means.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the sub-communication power supply control unit communicates from outside the communication area of the access point of the sub-communication unit based on the determination result of the determination unit. When it is determined that the mobile phone has entered the area, the power of the sub-communication means is turned on and communication with the access point in the communication area is confirmed. If the communication is confirmed, communication with the access point is established. The power source of the sub-communication unit is controlled in a power saving mode.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the sub-communication power control means turns off the power of the sub-communication means and then turns on the power again when the communication confirmation cannot be performed. And re-communication confirmation means for confirming re-communication with an access point in the communication area.

  The invention according to claim 5 is the invention according to claim 4, wherein the re-communication confirmation means turns on the power of the sub-communication means for re-communication confirmation according to the distance between the own device and the access point. The number of times within a unit time is switched.

  The invention of claim 6 provides the first position information corresponding to the point where the communication between the access points can be established by the sub-communication means and the sub-communication in any of the inventions of claims 2 to 5. Second position information corresponding to a point at which communication between the access points is no longer possible by means, and stored in the storage means based on the stored first position information and second position information Communication area information update registration means for updating or registering communication area information corresponding to the access point is further provided.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, further comprising main communication power control means for forcibly turning off the power of the main communication means in response to a communication prohibition instruction from the access point. It is characterized by comprising.

  The invention according to claim 8 is a radio having a main communication means for performing wireless communication via a base station and a sub-communication means for performing wireless communication via a predetermined access point in a communication area smaller than the main communication means. In the control method of the communication control device, the determining means determines whether or not the own device is located in the communication area of the access point of the sub-communication means, and the sub-communication power control means determines the self-communication based on the determination output of the determining means. The power control of the sub-communication means is performed.

  The invention of claim 9 is the invention of claim 8, wherein the determination means stores the position of each access point of the sub-communication means and the communicable radius in the storage means as a communication area, and Information is detected by the position detection means, the comparison means compares the communication area information of the sub-communication means stored in the storage means with the position information of the own device detected by the position detection means, and the comparison result is obtained. Based on this, it is determined whether or not the own device is located in a communication area of any access point of the sub-communication means.

  The invention according to claim 10 is the invention according to claim 8 or 9, wherein the sub-communication power supply control means communicates from outside the communication area of the access point of the sub-communication means based on the determination result of the determination means. When it is determined that the mobile phone has entered the area, the power of the sub-communication means is turned on and communication with the access point in the communication area is confirmed. If the communication is confirmed, communication with the access point is established. The power source of the sub-communication unit is controlled in a power saving mode.

  Further, in the invention of claim 11, in the invention of claim 10, the sub-communication power control means turns off the power of the sub-communication means and then turns on the power again when the communication confirmation cannot be performed. Then, re-communication confirmation with an access point in the communication area is performed by a re-communication confirmation means.

  The invention according to claim 12 is the invention according to claim 11, wherein the re-communication confirmation means turns on the power of the sub-communication means for re-communication confirmation according to the distance between the own device and the access point. The number of times within a unit time is switched.

  The invention according to claim 13 is the invention according to any one of claims 9 to 12, wherein the first position information corresponding to the point where communication between the access points can be established by the sub-communication means and the sub-communication. Second position information corresponding to a point at which communication between the access points is no longer possible by means, and stored in the storage means based on the stored first position information and second position information The communication area information corresponding to the access point is updated or registered.

  According to a fourteenth aspect of the present invention, in any one of the eighth to thirteenth aspects, the main communication means is forcibly controlled to be turned off by a communication prohibition instruction from the access point.

  According to this invention, a radio communication control apparatus comprising: main communication means for performing radio communication via a base station; and sub-communication means for performing radio communication via a predetermined access point in a communication area smaller than the main communication means. In this case, it is determined by the determining means whether or not the own device is located in the communication area of the access point of the sub-communication means, and the sub-communication power control means performs power control of the sub-communication means based on the determination output of the determining means. Thus, the operability is improved and the power can be saved.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a wireless communication control device and a control method therefor according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a block diagram showing an embodiment of a radio communication control apparatus according to the present invention.

  In FIG. 1, this wireless communication control device 100 is connected via a wireless LAN access point arranged at various places as a mobile phone communication function and sub-communication means for performing communication via a mobile phone base station (not shown) as main communication means. Has a low power communication function.

  That is, the wireless communication control device 100 shown in FIG. 1 includes a system control unit 10 that performs overall control of the overall operation of the wireless communication control device 100, a mobile phone communication wireless unit 20 that implements the mobile phone communication function, and the small communication device. Low power communication radio unit 30 for realizing the power communication function, main communication power supply control unit 40 for controlling the power supply of the mobile phone communication radio unit 20, and sub communication power supply control unit 50 for controlling the power supply of the low power communication radio unit 30 A GPS (Global Positioning System) receiving unit 60 for acquiring terminal position information 110 indicating the current position of the wireless communication control device 100 and communication area information 120 of a plurality of access points of the low-power communication wireless unit 30 are set. External I / O (Input / Output) unit 70 and a memory unit 80 for storing communication area information input from the external I / O unit 70

  Here, the mobile phone communication radio unit 20 includes a transmission power amplification circuit that amplifies the transmission signal, a reception amplification circuit that amplifies the reception signal, and the main communication power supply control unit 40 includes the transmission power amplification circuit, Controls the power supplied to the reception amplifier circuit and the like.

  The low-power communication radio unit 30 also includes a transmission power amplification circuit that amplifies the transmission signal, a reception amplification circuit that amplifies the reception signal, and the like. Controls the power supplied to the amplifier circuit and the like.

  The GPS receiving unit 60 receives a transmission signal from an unillustrated artificial satellite and acquires terminal position information 110 indicating the current position of the wireless communication control device 100.

  In the above embodiment, the terminal position information 110 indicating the current position of the wireless communication control device 100 used in the present invention is obtained from the output of the GPS receiver 60. For example, the wireless communication control device When the cellular phone communication function of 100 adopts a CDMA (Code Division Multiple Access) system, terminal location information 110 indicating the current position of the wireless communication control device 100 is acquired based on a received signal of the CDMA system. You may comprise.

  In the above embodiment, the communication area information 120 of the access point of the low power communication radio unit 30 used in the present invention is input from the external I / O unit 70 and set. When the 100 mobile phone communication functions support the Internet access function, the communication area information 120 of the access point of the low power communication radio unit 30 is transmitted via the mobile phone communication radio unit 20 using the Internet access function. The communication area information 120 of the access point of the low-power communication radio unit 30 can be reduced by using the low-power communication function of the wireless communication control device 100. You may comprise so that it may acquire and set from the outside via the electric power communication radio | wireless part 30. FIG.

  In the above configuration, the main communication power control unit 40 is normally turned on to supply power to the mobile phone communication radio unit 20, and is set so that a call using the mobile phone communication function is always possible.

  In addition, the system control unit 10 includes terminal position information 110 indicating the current position of the wireless communication control device 100 acquired from the GPS receiving unit 60, and an access point of the low power communication wireless unit 30 stored in the memory unit 80. The wireless communication control device 100 automatically turns on the sub-communication power control unit 50 when the wireless communication control device 100 enters the communication area of any access point of the low-power communication wireless unit 30. Then, power is supplied to the low-power communication radio unit 30, and when the radio communication control device 100 exits the communication area of the access point of the low-power communication radio unit 30, the sub-communication power control unit 50 is automatically turned off. Thus, the power supply to the low-power communication radio unit 30 is stopped.

  Further, in the area where the call using the mobile phone communication function is prohibited, a command for prohibiting the call using the mobile phone communication function can be generated from the access point of the low-power communication radio unit 30 in this area. .

  In such a configuration, when this command is received via the low-power communication wireless unit 30, the system control unit 10 controls the main communication power supply control unit 40 to control the power of the mobile phone communication wireless unit 20 to be turned off. To do.

  According to such a configuration, communication using the mobile phone communication wireless unit 20 in a specific region can be selectively prohibited by the arrangement of the access point of the low-power communication wireless unit 30 at a specific position.

  FIG. 2 is a flowchart showing an operation when the wireless communication control device 100 shown in FIG. 1 enters the communication area of any access point of the low-power communication wireless unit 30.

  In FIG. 2, the system control unit 10 first detects the current position of the wireless communication control device 100 (step 201). Specifically, the terminal position detection process acquires terminal position information 110 indicating the current position of the wireless communication control device 100 from the GPS receiver 60.

  Next, the acquired terminal position information 110 is compared with the communication area information 120 of the access point of the low power communication radio unit 30 stored in the memory unit 80, and the radio communication control device 100 determines that the low power It is checked whether the communication wireless unit 30 has entered the communication area of any access point (step 202). If it is determined that the wireless communication control device 100 is not within the communication area of the access point of the low power communication wireless unit 30 (NO in step 202), the process returns to step 201, and the wireless communication control device 100 is small. It waits to enter the communication area of the access point of the power communication radio unit 30.

  If it is determined in step 202 that the wireless communication control device 100 has entered the communication area of the access point of the low-power communication wireless unit 30 (YES in step 202), the sub-communication power supply control unit 50 is turned on (step 203). ), The communication with the corresponding access point is performed, and it is checked whether the communication has been established (step 204).

  If it is determined that communication has been established (YES in step 204), the communication establishment position information for which communication has been established is stored in the memory unit 80 for the communication area information update registration process described later. (Step 205), the sub-communication power control unit 50 is controlled so that the sub-communication power control unit 50 is in a standby state in the power saving mode (step 206). Here, the power saving mode of the sub communication power supply control unit 50 is, for example, a suspend mode in which power is selectively supplied to only the reception amplifier circuit of the sub communication power supply control unit 50 to save power.

  If it is determined in step 204 that communication cannot be established (NO in step 204), re-communication establishment processing with the access point of the low-power communication radio unit 30 is performed (step 207).

  Details of the re-communication establishment process in step 207 are shown in FIG.

  In the re-communication establishment process at step 207, first, the sub-communication power control unit 50 is turned off (step 301), and it is checked whether or not the wireless communication control device 100 has moved (step 302). The determination as to whether the wireless communication control device 100 has moved can be made based on the terminal position information 110 acquired from the GPS receiver 60.

  If it is determined that wireless communication control apparatus 100 has moved (YES in step 302), access point communication area information 120 stored in memory unit 80 and terminal position information 110 acquired from GPS receiving unit 60 are stored. Based on the above, the distance from the registered coordinates of the access point (access point position information) to the own device is calculated (step 303), and the sub-communication power source for establishing re-communication within a predetermined unit time based on the calculated distance The number of ON times of the control unit 50 is set.

  The number of times the sub communication power supply control unit 50 is turned on is set based on the table shown in FIG.

  For example, if the distance from the registered coordinates of the access point calculated in step 303 to the own device is between 150 m and 100 m, the number of times the sub-communication power control unit 50 is turned on for establishing re-communication with the access point Is set to 2 times / minute, and if it is between 100 m and 50 m, the number of ON times of the sub-communication power supply controller 50 for establishing re-communication with the access point is set to 4 times / minute, and 50 m to 0 m In the period up to, the number of ON times of the sub-communication power supply control unit 50 for establishing re-communication with the access point is set to 6 times / minute.

  That is, as the distance from the registered coordinates of the access point to the own device becomes closer, the possibility of establishing re-communication with the access point increases, so the sub-communication power control unit 50 for establishing re-communication with the access point It is set so that the frequency of ON is high.

  When the number of times of turning on the sub-communication power control unit 50 for establishing re-communication with the access point is set in step 304, the sub-communication power control unit 50 is turned on based on this setting (step 305), and FIG. Return to step 204.

  If it is determined in step 204 in FIG. 2 that communication has been established (YES in step 204), the communication establishment position information is stored in the memory unit 80 (step 205), and a standby is performed in the power saving mode (step 206). However, if it is determined that communication has not been established (NO in step 204), the re-communication establishment process shown in FIG. 3 is started again (step 207).

  In this case, in FIG. 3, the sub-communication power control unit 50 is turned off (step 301), and it is checked whether or not the wireless communication control device 100 has moved (step 302).

If it is determined that the wireless communication control device 100 has moved (YES in step 302), the processing from step 303 to step 305 described above is performed, but it is determined that the wireless communication control device 100 has not moved. If it is determined (NO in step 302), it is checked whether the number of power-on times is set (step 306). Here, since the number of power-on times is set (YES in step 306), the setting set in step 304 is performed. It is checked whether the number of times has been reached (step 307). If not reached (NO in step 307), whether the next on-timing is determined based on the number of times set in step 304 (step 308). Step 308 returns and waits for the on timing, but when the on timing comes (YES in step 308) Sub communication power control unit 50 turns on the control (step 305), the flow returns to step 204 of FIG.

  If it is determined in step 307 that the set number of times has been reached (YES in step 307), or if it is determined in step 306 that the number of power-on times has not been set (NO in step 306), the process proceeds to step 302. Return.

  In this way, when the wireless communication control apparatus 100 is not moving, re-communication establishment processing with the access point is performed until the number of power-on times set in step 304 is reached, and the wireless communication control apparatus 100 When is moved, the number of power-on times is reset according to the moving position, and the re-communication establishment process with the access point is continued.

  FIG. 5 is a flowchart showing an operation when the wireless communication control apparatus 100 exits the communication area of the access point of the low power communication wireless unit 30 after the communication establishment with the access point is performed.

  In a state where communication is established between the wireless communication control device 100 and the access point, it is checked whether the wireless communication control device 100 has moved (step 501).

  If it is determined that the wireless communication control device 100 has not moved (NO in step 501), the process returns to step 501 to wait for the wireless communication control device 100 to move. If it is determined that it has moved (YES in step 501), it is next checked whether the communication link between the wireless communication control apparatus 100 and the access point has been disconnected (step 502).

  If it is determined that the communication link with the access point has not been disconnected (NO in step 502), the wireless communication control device 100 is in the communication area of the access point. Return to.

  If it is determined in step 502 that the communication link with the access point has been disconnected (YES in step 502), the wireless communication control device 100 determines that it has exited the communication area of this access point. Then, the sub-communication power supply control unit 50 is controlled to be turned off (step 503), and the disconnection position where the communication link with the access point is disconnected is stored in the memory unit 80 (step 504).

  Then, a communication area information update registration process (step 505) described below is performed, and the process ends.

  FIG. 6 is a diagram illustrating an example of communication area information stored in the memory unit 80 illustrated in FIG. 1.

  As illustrated in FIG. 6, the communication area information stored in the memory unit 80 includes “position accuracy”, “access point information”, “longitude”, “latitude”, and “communication radius”.

  Here, “Position accuracy” indicates the registration state of the access point, “O” indicates an access point with a predetermined communication area, “X” indicates an access point temporarily placed by the user, and “△” indicates Indicates an access point whose communication area has not been determined.

  “Access point information” indicates identification information of the access point, “longitude” and “latitude” indicate the position of the access point, and “communication radius” is specified by “longitude” and “latitude”. Communication radius from the location of the access point.

  The communication area information stored in the memory unit 80 includes, in addition to the communication area information input and registered by the user from the external I / O unit 70, a history of actual communication using the low-power communication radio unit 30. From the history of actual communication using the low-power communication radio unit 30 after being registered by being input via the external I / O unit 70 by the user. It also includes updated communication area information.

  In FIG. 6, the access point of the identification information A1-B1 is an access point whose communication area has been determined, and its position is longitude xx degrees xx minutes xx seconds, and latitude is xx degrees xx minutes xx seconds, It shows that the communicable radius from that position is 130 m.

  The access point of the identification information A2-B2 is an access point temporarily placed from the history of actual communication by the user using the low-power communication radio unit 30, and the position is longitude xx degrees xx minutes xx seconds. The latitude is xx degrees xx minutes xx seconds, and the communicable radius from that position is 130 m.

  Similarly to the access point of the identification information A1-B1, the access point of the identification information A3-B3 is an access point whose communication area has been determined, and the position is longitude xx degrees xx minutes xx seconds, and the latitude Is xx degrees xx minutes xx seconds, and the communicable radius from the position is 120 m.

  In addition, the access point of the identification information A4-B4 is an access point whose communication area is unconfirmed, and its position is longitude xx degrees xx minutes xx seconds and latitude is xx degrees xx minutes xx seconds. The possible radius is undecided.

  Now, in actual communication by the user using the low-power communication radio unit 30, the communication establishment position (connection position) where communication is established as shown in FIG. 2 and the disconnection position as shown in FIG. 5 are stored. The connection position and disconnection position are registered in the memory unit 80 as connection disconnection history information.

  FIG. 7 is a diagram illustrating an example of connection disconnection history information registered in the memory.

  In FIG. 7, this disconnection history information is connected at a point A with longitude xx degrees xx minutes xx seconds and latitude xx degrees xx minutes xx seconds with respect to the access point of the identification information A4-B4, and longitudes xx degrees xx minutes. It is cut at point B where xx seconds and latitude are xx degrees xx minutes and xx seconds, longitude is xx degrees xx minutes and xx seconds, and latitude is xx degrees xx minutes and xx seconds, and identification information A5- This indicates that the access point B5 is connected at a point D where the longitude is xx degrees xx minutes xx seconds and the latitude is xx degrees xx minutes xx seconds.

  Therefore, for the access point of identification information A4-B4 from the connection disconnection history information, the accurate communication area of the access point of identification information A4-B4 from the coordinates of connection point A, disconnection point B, C is shown in FIG. It can be determined as shown.

  That is, assuming that communication is performed using a directional inner antenna at an access point, radio waves are radiated concentrically around the position of the access point.

  Therefore, in FIG. 8, since the connection to the access point is made at the point A, the position of the center of the access point should be on a concentric circle with the point A as the center.

  Similarly, since the access point is disconnected at the point B, the position of the center of the access point is on a concentric circle with the point B as the center, and the access point is disconnected at the point C. Since it was done, the location of the center of this access point should be on a concentric circle centered around point C.

  Therefore, a point 804 where the circles 801, 802, 803 having the same radius R intersect among the concentric circles centering on the points A, BC is the position of the access point, and the radius R is the communicable radius of the access point. It can be estimated that there is.

  Therefore, in the update registration process of the communication area information in step 505 shown in FIG. 5, the communication area information of the access point whose communication area is undetermined based on the above estimation with reference to the disconnection history information shown in FIG. Register for update.

  According to such communication area information, the communication area can be specified only by registering the coordinates of the access point (communication area center coordinates) and its communicable radius as the communication area information. Therefore, the memory capacity can be reduced.

  The wireless communication control device and the control method thereof according to the present invention have the operability of a wireless communication control device having a low power communication function as a sub communication means such as a wireless LAN in addition to the wireless telephone communication function as a main communication means. Effective for improvement and power saving.

  According to the present invention, the determining means determines whether or not the own device is located within the communication area of the access point of the sub-communication means, and the sub-communication power control means determines the sub-communication means based on the determination output of the determining means. Since the power supply control is performed, the operability can be improved and the power can be saved.

It is a block diagram which shows one Example of the radio | wireless communication control apparatus concerning this invention. 3 is a flowchart showing an operation when the wireless communication control device 100 shown in FIG. 1 enters the communication area of any access point of the low-power communication wireless unit 30. 3 is a flowchart showing details of a re-communication establishment process shown in FIG. It is a figure which shows an example of the table used for the setting of the frequency | count of ON of the sub communication power supply control part 50 shown in FIG. 2 is a flowchart showing an operation when the wireless communication control device 100 shown in FIG. 1 leaves the communication area of the access point of the low-power communication wireless unit 30 after establishing communication with the access point. It is a figure which shows an example of the communication area information memorize | stored in the memory part 80 shown in FIG. It is a figure which shows an example of the connection cutting | disconnection log | history information registered into the memory shown in FIG. It is a figure explaining the process which calculates | requires the communication area of an access point from the connection cutting history information shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Wireless communication control apparatus 10 System control part 20 Mobile telephone communication wireless part 30 Low power communication wireless part 40 Main communication power supply control part 50 Sub communication power supply control part 60 GPS (Global Positioning System) receiving part 70 External I / O (Input / Output) part 80 Memory part 80

Claims (14)

In a wireless communication control apparatus comprising: main communication means for performing wireless communication via a base station; and sub-communication means for performing wireless communication via a predetermined access point in a communication area smaller than the main communication means.
Determining means for determining whether or not the own device is located in a communication area of an access point of the sub-communication means;
Sub-communication power supply control means for performing power control of the sub-communication means based on the discrimination output of the discrimination means. The discrimination means includes
Storage means for storing the position of each access point of the sub-communication means and its communicable radius as a communication area;
Position detecting means for detecting position information of the own machine;
Comparing means for comparing the communication area information of the sub-communication means stored in the storage means with the position information of the own device detected by the position detecting means,
The radio communication control apparatus according to claim 1, wherein it is determined whether or not the own device is located within a communication area of any access point of the sub-communication unit based on a comparison result of the comparison unit. The sub-communication power control means
When it is determined that the own device has entered the communication area from outside the communication area of the access point of the sub communication means based on the determination result of the determination means, the power of the sub communication means is turned on and the access point in the communication area 3. The communication with the access point is established, and if the communication is confirmed, communication with the access point is established and the power source of the sub-communication means is controlled in a power saving mode. Wireless communication control device. The sub-communication power control means
Re-communication confirmation means for confirming re-communication with the access point in the communication area by turning on the power again after turning off the power of the sub-communication means when the communication confirmation is not possible. The wireless communication control device according to claim 3, wherein: The re-communication confirmation means includes
The radio communication control apparatus according to claim 4, wherein the number of times within a unit time of turning on the power of the sub-communication means for re-communication confirmation is switched according to a distance between the own device and the access point. First position information corresponding to a point where communication between the access points can be established by the sub-communication means and second position information corresponding to a point where communication between the access points cannot be performed by the sub-communication means Communication area information update registration means for updating or registering communication area information corresponding to the access point stored in the storage means based on the stored first position information and second position information. The wireless communication control device according to claim 2, further comprising: The wireless communication control device according to any one of claims 1 to 6, further comprising main communication power control means for forcibly turning off the power of the main communication means in response to a communication prohibition instruction from the access point. In a control method of a wireless communication control device comprising: main communication means for performing wireless communication via a base station; and sub-communication means for performing wireless communication via a predetermined access point in a communication area smaller than the main communication means.
It is determined by the determining means whether the own machine is located in the communication area of the access point of the sub-communication means,
A control method for a radio communication control apparatus, wherein power control of the sub-communication means is performed by a sub-communication power control means based on a discrimination output of the discrimination means. The discrimination means includes
Storing the position of each access point of the sub-communication means and its communicable radius as a communication area in the storage means;
Detects the position information of own machine by the position detection means,
The comparison means compares the communication area information of the sub communication means stored in the storage means with the position information of the own apparatus detected by the position detection means, and based on the comparison result, the own apparatus The method of controlling a wireless communication control device according to claim 8, wherein it is determined whether or not any access point is located within a communication area.   The sub-communication power control means turns on the power of the sub-communication means when it is determined that the own device has entered the communication area from outside the communication area of the access point of the sub-communication means based on the determination result of the determination means. Confirming communication with an access point in the communication area, and establishing communication with the access point if the communication is confirmed, and controlling the power supply of the sub-communication means in a power saving mode. A control method for a wireless communication control device according to claim 8 or 9. The sub-communication power control means turns off the power of the sub-communication means after turning off the power of the sub-communication means and re-communications the re-communication confirmation with the access point in the communication area when the communication confirmation cannot be performed The method of controlling a wireless communication control device according to claim 10, wherein the control method is performed by a confirmation unit. The re-communication confirmation unit switches the number of times within a unit time for turning on the power of the sub-communication unit for re-communication confirmation according to a distance between the own device and the access point. A control method of the wireless communication control device described. First position information corresponding to a point where communication between the access points can be established by the sub-communication means and second position information corresponding to a point where communication between the access points cannot be performed by the sub-communication means The communication area information corresponding to the access point stored in the storage means is updated or registered based on the stored first position information and second position information. A control method for a wireless communication control device according to any one of 9 to 12. The method of controlling a wireless communication control device according to any one of claims 8 to 13, wherein the main communication means is forcibly controlled to be turned off by a communication prohibition instruction from the access point.

Images