JP2009044656A - Mobile wireless device and setting changing method of communication apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress increase of current consumption by preventing setting of radio from being changed unexpectedly. <P>SOLUTION: A first radio communication unit 101 performs radio communication via a mobile communication network such as a 2G/3G network. A first radio status determination unit 102 analyzes a received signal to determine whether a radio status is outside or inside a communication range of the mobile communication network. In the case where the first radio status determination unit 102 determines the status is outside the communication range, a time measuring unit 103 starts measuring a time and in the case where the first radio status determination unit 102 does not determine the status inside the communication range within a predetermined time, a second radio setting unit 104 is notified of the lapse of the predetermined time. In the case where the second radio setting unit 104 is notified of the lapse of the predetermined time from the time measuring unit 103, the second radio setting unit changes setting of communication. A second radio communication unit 105 performs communication via a wireless LAN or the like in accordance with the changed setting. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mobile radio apparatus and a communication apparatus setting changing method, for example, a mobile radio apparatus and a communication apparatus setting changing method for changing communication settings when moving from the country to the outside of the country.

  When a 2.4 GHz band radio wave is used by a wireless LAN or the like, the laws and regulations differ depending on the country, so that the available communication channel and the maximum transmission power differ from country to country. Specifically, it is possible to use from 1ch to 14ch in Japan, but from 1ch to 11ch in North America, and from 10ch to 13ch in France. For this reason, a wireless mobile device that uses 2.4 GHz band radio waves needs to change radio wave characteristics in accordance with the country of use. For this reason, conventionally, a method of not emitting radio waves from a wireless mobile device until information on the country where it currently exists is defined by information broadcast from the wireless access point (for example, Non-Patent Document 1).

  In the search for a wireless access point in Non-Patent Document 1, reception of beacon information from a wireless access point is not performed instead of active scan (Active Scan) for transmitting a probe request (Probe Request) for access point search from a wireless mobile device. Use a passive scan that just waits. In passive scanning, it is necessary to monitor radio until a beacon notified from an access point is received. In general, since the beacon of the access point is broadcasted at a cycle of 100 ms, it is necessary to continuously monitor at least 100 ms or more per communication channel. On the other hand, in the search method using active scan, the wireless access point that has received the probe request returns the same information as the beacon to the wireless mobile device by notifying the probe request from the wireless mobile device. The time from when this probe request is transmitted until the same information as Beacon is received is about several tens of ms, although it depends on the radio conditions, and is very small compared to 100 ms in the passive scan. . When this monitoring time in the wireless mobile device becomes long, the wireless mobile device needs to be activated for that length of time, so that power consumption increases. That is, in the wireless mobile device, in the search using the passive scan, the current consumption during the access point search increases compared to the case where the active scan is used.

  Conventionally, a wireless mobile device acquires country information that is information on a country that currently exists from a mobile communication network such as a 2G / 3G network or GPS (Global Positioning System), and wirelessly depends on the acquired country information. There are known ones that change the setting (for example, Patent Document 1 and Patent Document 2).

Conventionally, a dual wireless mobile device capable of communicating using both a wireless LAN and a mobile communication network has a wireless LAN single mode function that disables use of the wireless interface of the mobile communication network. Therefore, the dual wireless mobile device cannot use a mobile communication network such as a 2G / 3G network in the wireless LAN single mode.
IEEE 802.11 dStd. JP 2002-159043 A JP 2004-274723 A

  However, in the conventional apparatus, when the wireless mobile device moves underground or in a building, there are many cases where the wireless mobile device goes out of a mobile communication network such as a 2G / 3G network or a GPS communication range. At this time, since the wireless mobile device cannot acquire country information from a mobile communication network such as a 2G / 3G network or GPS, the access point search described in Non-Patent Document 1 is immediately executed. In addition, since the dual wireless mobile device cannot acquire country information from a mobile communication network such as a 2G / 3G network or GPS in the wireless LAN single mode, it immediately executes an access point search described in Non-Patent Document 1. To do. Therefore, the wireless mobile device and the dual wireless mobile device have a problem that current consumption increases by performing passive scanning even when it is not necessary to change wireless settings.

  The present invention has been made in view of the above points, and provides a mobile radio apparatus and a communication apparatus setting change method capable of suppressing an increase in current consumption by not inadvertently changing radio settings. With the goal.

  The mobile radio apparatus of the present invention analyzes the received signal to determine whether the mobile communication network is out of the communication range or the communication range, and determines that the wireless state determination unit is out of the communication range Change the communication setting when the wireless state determination means does not determine that it is within the communication range until a predetermined time elapses after the time measurement means starts the measurement. And a wireless setting means.

  In addition, the mobile radio apparatus of the present invention obtains power management means for detecting power on and power off, and time from the time when the power management means detects power off to the time when power on is detected. A configuration is provided that includes time measuring means and wireless setting means for changing communication settings when the obtained time is equal to or longer than a predetermined time.

  The mobile radio apparatus according to the present invention includes an identifier storage unit that stores in advance a predetermined identifier among identifiers that are information for identifying a communication partner, and is out of communication range or within communication range by analyzing a received signal. A wireless state determination unit that determines whether the wireless state determination unit determines that the communication partner is out of the communication range, and a communication partner that searches for the identifier of the communication partner that is found by the search. The search result storage means that sequentially updates and stores the identifier stored in the identifier storage means matches the identifier stored in the search result storage means when the communication partner cannot be found by the search The time setting means for starting the time measurement when the communication time is changed, and the communication setting is changed when the search means cannot find the communication partner until the predetermined time elapses. A configuration that includes a wireless setting means, the for.

  The communication apparatus setting changing method according to the present invention includes a step of analyzing a received signal to determine whether the mobile communication network is out of the communication area or the communication area, and measuring time when it is determined that the communication apparatus is out of the communication area. And a step of changing the setting of the communication apparatus when it is not determined that the communication area is within a predetermined time after the measurement is started.

  The communication apparatus setting changing method according to the present invention includes a step of detecting power on and power off, a step of obtaining a time from a time at which the power off is detected to a time at which the power on is detected. And a step of changing the setting of the communication device when the obtained time is equal to or longer than a predetermined time.

  The communication apparatus setting changing method according to the present invention includes an identifier storage means for storing the predetermined identifier in the identifier storage means in advance among the identifiers for identifying the communication partner, and analyzing the received signal for out of communication range. A step of determining whether the communication partner is within a communication range, a step of executing a search for a communication partner when it is determined that the communication partner is out of a communication range, and a search result each time the identifier of the communication partner found by the search is found The step of sequentially updating and storing in the storage means matches the identifier stored in the search result storage means when the identifier stored in the identifier storage means and the communication partner cannot be found by the search A step of starting the time measurement in the case, and setting up the communication device when the communication partner cannot be found by the search before the predetermined time elapses. And changing were to comprise a.

  According to the present invention, an increase in current consumption can be suppressed by not inadvertently changing wireless settings.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiment of the present invention, a method for acquiring country information via a mobile communication network is described for the sake of simplification. However, the present invention is not limited to this and is acquired from GPS, FM (Frequency Modulation), or the like. It is also possible to do.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of mobile radio apparatus 100 according to the present embodiment.

  The first wireless communication unit 101 performs wireless communication via a mobile communication network such as a 2G / 3G network. Then, the first wireless communication unit 101 outputs a signal received through wireless communication to the first wireless state determination unit 102.

  The first wireless state determination unit 102 analyzes the received signal input from the first wireless communication unit 101 to determine whether the mobile communication network is out of communication range or is in communication range. Specifically, the first radio state determination unit 102 analyzes the received signal, and when the received signal level is less than the threshold value or when the control information included in the received signal cannot be acquired. It is determined that the mobile communication network is out of range. On the other hand, the first radio state determination unit 102 analyzes the received signal, and when the received signal level is equal to or higher than the threshold value or when the control information included in the received signal can be acquired, the communication of the mobile communication network Judged to be within a range. Then, the first wireless state determination unit 102 outputs the determination result to the time measurement unit 103.

  The time measurement unit 103 starts measuring time when a determination result indicating that the communication area is out of the communication range is input from the first wireless state determination unit 102. Then, the time measuring unit 103 indicates that the predetermined time has elapsed when the determination result indicating that the communication area is within the communication range is not input from the first wireless state determining unit 102 until the predetermined time elapses after the time measurement is started. To the second wireless setting unit 104.

  When the second wireless setting unit 104 receives a notification that the predetermined time has elapsed from the time measuring unit 103, the second wireless setting unit 104 changes the wireless setting parameter usable in the country to the wireless setting parameter usable outside the country. For example, the second wireless setting unit 104 changes wireless setting parameters such as a communication channel, transmission maximum power, and a scanning method from a domestic setting to a foreign setting. Then, the second wireless setting unit 104 instructs the second wireless communication unit 105 to perform communication using the changed wireless setting parameter.

  The second wireless communication unit 105 performs wireless communication using a 2.4 GHz band such as a wireless LAN in accordance with an instruction from the second wireless setting unit 104.

  Next, the operation of mobile radio apparatus 100 will be described using FIG. FIG. 2 is a flowchart showing the operation of the mobile radio apparatus 100.

  First, the first radio state determination unit 102 analyzes the received signal to determine whether the mobile communication network is outside the communication range (step ST201).

  If the mobile communication network is not outside the communication range, that is, if the mobile communication network is within the communication range, the first wireless state determination unit 102 acquires the country information via the first wireless communication unit 101 as in the conventional case, and the second wireless state determination unit 102 The wireless setting unit 104 performs wireless setting according to the country of the acquired country information.

  On the other hand, when determining that the mobile communication network is out of the communication range, the time measuring unit 103 starts measuring time.

  Next, time measuring section 103 determines whether or not a certain time has passed (step ST202).

  If the predetermined time has not elapsed, time measuring section 103 determines whether or not a determination result indicating that the mobile communication network is within the communication area has been input, that is, whether or not the mobile communication network has returned to the communication area (step ST203).

  Then, when returning to the communication range, the time measuring unit 103 stops measuring the time, and the mobile communication device 100 returns the process to step ST201. On the other hand, when the mobile phone has not returned to the communication area, the time measuring unit 103 continues to measure time.

  In addition, when a predetermined time has elapsed without returning to the communication area of the mobile communication network, the second wireless setting unit 104 changes to a wireless setting that can be used outside the country, and the second wireless communication unit 105 is changed outside the country. Communication is performed according to the available wireless settings (step ST204). Here, the overseas wireless setting is to match the communication channel, the maximum transmission power, the scanning method, etc. with the setting of each country. The scanning method is either a passive scan or an active scan.

  If the first wireless communication unit 101 enters the communication area of the mobile communication network when the mobile wireless device 100 is operating with wireless settings that can be used outside the country, the first wireless communication unit 101 The information is acquired, the second wireless setting unit 104 performs wireless setting according to the acquired country information, and the second wireless communication unit 105 performs communication according to the setting of the second wireless setting unit 104. On the other hand, when the mobile radio apparatus 100 is out of the communication range of the mobile communication network, the second radio communication unit 105 continues to operate with the radio settings outside Japan.

  As described above, according to the present embodiment, the first wireless state determination unit 102 determines that the wireless state is out of the communication range and does not immediately change to the wireless setting that can be used outside the country. When it does not return to the communication range, the wireless setting is changed to a wireless setting that can be used outside the country. Therefore, an increase in current consumption can be suppressed by inadvertently changing the wireless setting.

(Embodiment 2)
FIG. 3 is a block diagram showing a configuration of mobile radio apparatus 300 according to Embodiment 2 of the present invention.

  Mobile radio apparatus 300 shown in FIG. 3 adds base station identifier storage section 301 and base station identifier determination section 302 to mobile radio apparatus 100 according to Embodiment 1 shown in FIG. Instead, a time measuring unit 303 is provided. In FIG. 3, parts having the same configuration as in FIG.

  The first wireless communication unit 101 performs wireless communication via a mobile communication network such as a 2G / 3G network. Then, the first wireless communication unit 101 outputs a signal received by wireless communication to the first wireless state determination unit 102 and the base station identifier determination unit 302.

  The first wireless state determination unit 102 analyzes the received signal input from the first wireless communication unit 101 to determine whether the mobile communication network is out of communication range or is in communication range. Specifically, the first radio state determination unit 102 analyzes the received signal, and when the received signal level is less than the threshold value or when the control information included in the received signal cannot be acquired. It is determined that the mobile communication network is out of range. On the other hand, the first radio state determination unit 102 analyzes the received signal, and when the received signal level is equal to or higher than the threshold value or when the control information included in the received signal can be acquired, the communication of the mobile communication network Judged to be within a range. Then, first radio state determination section 102 outputs the determination result to base station identifier determination section 302 and time measurement section 303.

  The base station identifier storage unit 301 holds a base station identifier for identifying a specific base station in the mobile communication network as a database. For example, the base station identifier storage unit 301 holds a base station identifier of a base station that can communicate with a gate for getting on a transportation facility moving from the country to the country. In this case, the gate for getting on the transportation means a gate provided in a terminal such as an aircraft or a ship.

  The base station identifier determination unit 302 extracts a base station identifier for identifying a base station from the received signal input from the first wireless communication unit 101, and holds the extracted base station identifier. Further, the base station identifier determination unit 302 receives the determination result indicating that it is out of the communication range from the first radio state determination unit 102, that is, the base station that has been connected until immediately before becoming out of the communication range, that is, the first radio state determination unit. The base station identifier of the base station that was connected when it was determined to be out of the communication range in 102 and the base station identifier stored in the base station identifier storage unit 301 are compared to determine whether the base station identifiers match. To do. Then, the base station identifier determination unit 302 instructs the time measurement unit 303 to start measuring time when the base station identifiers match.

  The time measurement unit 303 starts measuring time according to an instruction from the base station identifier determination unit 302. Then, the time measurement unit 303 indicates that the predetermined time has elapsed when the determination result indicating that the communication area is within the communication range is not input from the first wireless state determination unit 102 between the start of time measurement and the elapse of the predetermined time. To the second wireless setting unit 104. In addition, the time measuring unit 303 can change a predetermined time for monitoring whether or not a determination result indicating that the communication area is within the communication range is input according to the base station identifier stored in the base station identifier storage unit 301.

  When the second wireless setting unit 104 receives a notification that the predetermined time has elapsed from the time measuring unit 303, the second wireless setting unit 104 changes the wireless setting parameter usable in the country to the wireless setting parameter usable outside the country. For example, the second wireless setting unit 104 changes wireless setting parameters such as a communication channel, transmission maximum power, and a scanning method from a domestic setting to a foreign setting. Then, the second wireless setting unit 104 instructs the second wireless communication unit 105 to perform communication using the changed wireless setting parameter.

  Next, the operation of mobile radio apparatus 300 will be described using FIG. FIG. 4 is a flowchart showing the operation of the mobile radio apparatus 300.

  First, first radio state determining section 102 determines whether or not the mobile communication network is outside the communication range (step ST401).

  If the mobile communication network is not outside the communication range, that is, if the mobile communication network is within the communication range, the first wireless state determination unit 102 acquires the country information via the first wireless communication unit 101 as in the conventional case, and the second wireless state determination unit 102 The wireless setting unit 104 performs wireless setting according to the country of the acquired country information.

  On the other hand, if it is determined that the mobile communication network is out of the communication area, the base station identifier determination unit 302 matches the base station identifier extracted from the received signal with the base station identifier stored in the base station identifier storage unit 301. It is determined whether or not to perform (step ST402).

  When the base station identifiers do not match, the mobile radio apparatus 300 returns the process to step ST401, and when the base station identifiers match, the time measurement unit 303 starts measuring time.

  Next, time measurement section 303 determines whether or not a certain time has elapsed (step ST403).

  If the predetermined time has not elapsed, time measurement section 303 determines whether or not a determination result indicating that the mobile communication network is within the communication range has been input, that is, whether or not the mobile communication network has returned to the communication range (step ST404).

  When returning to the communication range, time measuring section 303 stops measuring time, and mobile communication apparatus 300 returns the process to step ST401. On the other hand, when the mobile phone has not returned to the communication range, the time measuring unit 303 continues to measure time.

  In addition, when a predetermined time has elapsed without returning to the communication area of the mobile communication network, the second wireless setting unit 104 changes to a wireless setting that can be used outside the country, and the second wireless communication unit 105 is changed outside the country. Communication is performed according to the available wireless settings (step ST405).

  If the first wireless communication unit 101 enters the communication area of the mobile communication network when the mobile wireless device 300 is operating with wireless settings that can be used outside the country, the first wireless communication unit 101 The information is acquired, the second wireless setting unit 104 performs wireless setting according to the acquired country information, and the second wireless communication unit 105 performs communication according to the setting of the second wireless setting unit 104. On the other hand, when the mobile radio apparatus 300 is outside the communication range of the mobile communication network, the second radio communication unit 105 continues to operate with the radio settings outside the country.

  Incidentally, a known base station is allocated to a location such as an airport or a port, and by storing a base station identifier such as an airport or a port in the base station identifier storage unit 301, a user can travel from an airport or a port overseas. Can be detected.

  Thus, according to the present embodiment, in addition to the effects of the first embodiment, the base station identifier stored in advance matches the base station identifier connected immediately before going out of the communication range. Since the time measurement is started, it is possible to accurately grasp the movement from the inside of the country to the outside of the country. Further, according to the present embodiment, when the predetermined time for notifying the second radio setting unit 104 that the predetermined time has elapsed is changed according to the base station identifier, the travel time is taken into consideration from the country to the outside of the country. Movement can be determined, and movement from the outside of the country to the outside of the country can be grasped more accurately.

(Embodiment 3)
FIG. 5 is a block diagram showing a configuration of mobile radio apparatus 500 according to the embodiment of the present invention.

  The power management unit 501 detects power on or power off of the mobile radio apparatus 500. Then, the power management unit 501 outputs the detection result to the time measurement unit 502.

  The time measurement unit 502 stores the time when the power-off detection result is input from the power management unit 501. In addition, when the power-on detection result is input from the power management unit 501, the time measurement unit 502 obtains the time from the time when the power-off detection result is input to the time when the power-on detection result is input. Further, the time measuring unit 502 determines whether or not the obtained time is equal to or longer than a predetermined time. Then, when the time measurement unit 502 is longer than the predetermined time, the time measurement unit 502 notifies the wireless setting unit 503 that the time is longer than the predetermined time.

  When the wireless setting unit 503 receives a notification from the time measuring unit 502 that the predetermined time or longer, the wireless setting unit 503 changes the wireless setting parameter usable in the country to the wireless setting parameter usable outside the country. For example, the wireless setting unit 503 changes wireless setting parameters such as a communication channel, transmission maximum power, and a scan method from a domestic setting to a foreign setting. Then, the wireless setting unit 503 instructs the wireless communication unit 504 to perform communication using the changed wireless setting parameter.

  The wireless communication unit 504 performs wireless communication using a 2.4 GHz band such as a wireless LAN in accordance with an instruction from the wireless setting unit 503.

  Next, the operation of mobile radio apparatus 500 will be described using FIG. FIG. 6 is a flowchart showing the operation of mobile radio apparatus 500.

  First, the power management unit 501 detects power off (step ST601).

  Next, time measurement section 502 stores the time when the power-off detection result is input (step ST602).

  Next, power management section 501 detects power-on (step ST603).

  Next, time measurement section 502 determines whether or not the time from the stored time to the time when the power-on detection result is input is equal to or longer than a predetermined time (step ST604).

  If it is longer than the predetermined time, wireless setting section 503 changes the wireless setting to be usable outside the country (step ST605).

  Thus, according to the present embodiment, a predetermined time elapses from the detection of power-off to the detection of power-on using the fact that the power of the wireless mobile device is turned off in an airplane or the like. By changing to a wireless setting that can be used outside of Japan, it is possible to suppress an increase in current consumption by not inadvertently changing the wireless setting. Further, according to the present embodiment, it is possible to detect the movement of a wireless mobile device from the country to the outside without requiring a plurality of wireless communication units. Further, even in a dual wireless mobile device operating in the wireless LAN single mode, it is possible to detect the movement to overseas effectively by the same method.

(Embodiment 4)
FIG. 7 is a block diagram showing a configuration of mobile radio apparatus 700 according to the embodiment of the present invention.

  The mobile radio apparatus 700 shown in FIG. 7 is different from the mobile radio apparatus 100 according to Embodiment 1 shown in FIG. 1 in that a base station identifier storage unit 701, a base station identifier judgment unit, except for the first radio state judgment unit 102 702 and a power management unit 703 are added, and a time measurement unit 704 is provided instead of the time measurement unit 103. In FIG. 7, parts having the same configuration as in FIG.

  The first wireless communication unit 101 performs wireless communication via a mobile communication network such as a 2G / 3G network. Then, the first wireless communication unit 101 outputs a signal received by wireless communication to the base station identifier determination unit 702.

  The base station identifier storage unit 701 holds a base station identifier for identifying a specific base station in the mobile communication network as a database. For example, the base station identifier storage unit 701 holds a base station identifier of a base station that can communicate with a gate for getting on a transportation facility moving from the country to the country.

  The base station identifier determination unit 702 extracts a base station identifier for identifying a base station from the received signal input from the first wireless communication unit 101, and holds the extracted base station identifier. In addition, when the power-off detection result is input from the power management unit 703, the base station identifier determination unit 702 detects the power-off at the base station connected until immediately before the power is turned off, that is, the power management unit 703. The base station identifier of the base station connected at the time is compared with the base station identifier stored in the base station identifier storage unit 701. Then, as a result of the comparison, the base station identifier determination unit 702 determines that the base station identifier of the base station connected until immediately before the power is turned off matches the base station identifier stored in the base station identifier storage unit 701. In addition, the time measurement unit 704 is instructed to store the time when the power is turned off.

  The power management unit 703 detects the power-off of the mobile radio apparatus 700 and outputs the power-off detection result to the base station identifier determination unit 702 and the time measurement unit 704. In addition, the power management unit 703 detects the power-on of the mobile radio apparatus 700 and outputs the power-on detection result to the time measurement unit 704.

  The time measurement unit 704 stores the time when the power is turned off according to the instruction of the base station identifier determination unit 702. In addition, when the power-on detection result is input from the power management unit 703, the time measurement unit 704 obtains the time from the time when the power-off detection result is input to the time when the power-on detection result is input. Also, the time measuring unit 704 determines whether or not the obtained time is equal to or longer than a predetermined time. When the time measurement unit 704 determines that the time is equal to or longer than the predetermined time, the time measurement unit 704 notifies the second wireless setting unit 104 that the time is longer than the predetermined time. Further, the time measuring unit 704 responds to the base station identifier stored in the base station identifier storage unit 701 for a predetermined time to be compared with the time from the time when the power-off detection result is input to the time when the power-on detection result is input. Can be changed.

  When the second radio setting unit 104 receives a notification that the predetermined time has elapsed from the time measurement unit 704, the second radio setting unit 104 changes the radio setting parameter usable in Japan to the radio setting parameter usable outside of the country. For example, the second wireless setting unit 104 changes wireless setting parameters such as a communication channel, transmission maximum power, and a scanning method from a domestic setting to a foreign setting. Then, the second wireless setting unit 104 instructs the second wireless communication unit 105 to perform communication using the changed wireless setting parameter.

  Next, the operation of mobile radio apparatus 700 will be described using FIG. FIG. 8 is a flowchart showing the operation of the mobile radio apparatus 700.

  First, the power management unit 703 detects power off (step ST801).

  Next, base station identifier determination section 702 determines whether or not the base station identifier extracted from the received signal matches the base station identifier stored in base station identifier storage section 701 (step ST802).

  If the base station identifiers do not match, the mobile radio apparatus 700 ends the process. On the other hand, if the base station identifiers match, the base station identifier determination unit 702 instructs the time measurement unit 704 to store the time when the power-off detection result is input, and the time measurement unit 704 The time at which the OFF detection result is input is stored (step ST803).

  Next, power management section 703 detects power-on (step ST804).

  Next, time measuring section 704 determines whether or not the stored time when the power is turned off and the time until the time when the power-on detection result is input is greater than or equal to a predetermined time (step ST805).

  If it is longer than the predetermined time, second radio setting section 104 changes to a radio setting that can be used outside the country (step ST806).

  On the other hand, when it is not longer than the predetermined time, the mobile radio apparatus 700 ends the process.

  If the first wireless communication unit 101 enters the communication area of the mobile communication network when the mobile wireless device 700 is operating with wireless settings that can be used outside the country, the first wireless communication unit 101 The information is acquired, the second wireless setting unit 104 performs wireless setting according to the acquired country information, and the second wireless communication unit 105 performs communication according to the setting of the second wireless setting unit 104. On the other hand, when the mobile wireless device 700 is outside the communication range of the mobile communication network, the second wireless communication unit 105 continues to operate with the wireless setting outside the country.

  As described above, according to the present embodiment, when a predetermined time has elapsed from detection of power-off to detection of power-on, it is inadvertently changed to a wireless setting that can be used outside the country. By not changing the wireless setting, an increase in current consumption can be suppressed. Further, according to the present embodiment, it can be used outside the country when the base station identifier of a specific base station stored in advance matches the base station identifier of the base station connected immediately before the power is turned off. By changing to a simple wireless setting, it is possible to accurately grasp the movement from inside to outside the country. Further, according to the present embodiment, when the predetermined time for notifying the second radio setting unit 104 that the predetermined time has elapsed is changed according to the base station identifier, the travel time is taken into consideration from the country to the outside of the country. Movement can be determined, and movement from the outside of the country to the outside of the country can be grasped more accurately.

(Embodiment 5)
FIG. 9 is a block diagram showing a configuration of mobile radio apparatus 900 according to the embodiment of the present invention.

  The wireless communication unit 901 performs wireless communication using a 2.4 GHz band such as a wireless LAN in accordance with an instruction from a wireless setting unit 908 described later. Then, the wireless communication unit 901 outputs a signal received by wireless communication to the wireless state determination unit 902 and the AP search unit 903.

  The wireless state determination unit 902 analyzes the received signal input from the wireless communication unit 901 to determine whether the wireless LAN is outside the communication range or the communication range. Specifically, the wireless state determination unit 902 analyzes the received signal to detect the wireless LAN when the received signal level is less than the threshold value or when control information included in the received signal cannot be acquired. Is determined to be out of range. On the other hand, the wireless state determination unit 902 is within the communication range of the wireless LAN when the received signal level is equal to or higher than the threshold value or the control information included in the received signal can be acquired by analyzing the received signal. Judge. Radio state determination section 902 outputs the determination result to AP search section 903.

  The AP search unit 903 periodically uses the received signal input from the wireless communication unit 901 when the determination result indicating that the wireless LAN is out of the communication range is input from the wireless state determination unit 902, and the wireless LAN access point (AP ) In addition, when the AP search unit 903 finds an access point of the wireless LAN, the AP search unit 903 outputs a search result of access point discovery to the time measurement unit 907. In addition, when the AP search unit 903 finds an access point of the wireless LAN, the AP search unit 903 extracts an AP identifier that is an identifier of the found access point. Then, the AP search unit 903 stores the extracted AP identifier in the AP search result storage unit 904 as a search result each time. The search result stored in the AP search result storage unit 904 includes an AP identifier of a wireless LAN access point existing around the mobile radio apparatus 900. When the AP search unit 903 cannot find a wireless LAN access point as a result of the periodic search, the AP identifier determination unit 906 indicates a determination result that there is no wireless LAN access point around the mobile wireless device 900. Output to. Here, the AP identifier is, for example, an SSID (Service Set Identifier).

  Each time an AP identifier is input from the AP search unit 903, the AP search result storage unit 904 updates the search result by updating and holding the AP identifier.

  The AP identifier storage unit 905 holds the AP identifier as a database. For example, the AP identifier storage unit 905 holds an AP identifier of an access point that can communicate with a gate for getting on a transportation facility moving from the country to the outside.

  The AP identifier determination unit 906 receives an AP identifier stored in the AP search result storage unit 904 when a determination result indicating that no wireless LAN access point exists around the mobile wireless device 900 is input from the AP search unit 903. And whether the AP identifier stored in the AP identifier storage unit 905 matches. Then, the AP identifier determination unit 905 instructs the time measurement unit 907 to start measuring time when the AP identifiers match.

  The time measurement unit 907 starts measuring time according to the instruction from the AP identifier determination unit 906. In addition, the time measurement unit 907 wirelessly sets the fact that the predetermined time has elapsed when the access point discovery search result is not input from the AP search unit 903 between the start of time measurement and the elapse of the predetermined time. Section 908 is notified. Further, the time measuring unit 907 can change a predetermined time for monitoring whether or not an access point discovery search result has been input in accordance with the AP identifier stored in the AP identifier storage unit 905.

  When the wireless setting unit 908 receives a notification from the time measurement unit 907 that a predetermined time has elapsed, the wireless setting unit 908 changes the wireless setting parameter usable in Japan to the wireless setting parameter usable outside of the country. For example, the wireless setting unit 908 changes wireless setting parameters such as a communication channel, transmission maximum power, and a scanning method from a domestic setting to a foreign setting. Then, the wireless setting unit 908 instructs the wireless communication unit 901 to perform communication using the changed wireless setting parameter.

  Next, the operation of mobile radio apparatus 900 will be described using FIG. FIG. 10 is a flowchart showing the operation of the mobile radio apparatus 900.

  First, the wireless state determination unit 902 determines that the wireless LAN is out of the communication range (step ST1001).

  Next, the AP search unit 903 periodically searches for a wireless LAN access point.

  Next, when the AP search unit 903 determines that there is no wireless LAN access point in the vicinity, the AP identifier determination unit 906 includes the AP identifier stored in the AP search result storage unit 904, and the AP identifier. The AP identifier stored in the storage unit 905 is compared to determine whether or not the AP identifiers match (step ST1002).

  If the AP identifiers do not match, mobile radio apparatus 900 ends the process, and if the AP identifiers match, time measurement section 907 starts measuring time (step ST1003).

  Next, time measurement section 907 determines whether or not a predetermined time has elapsed (step ST1004).

  If the predetermined time has not elapsed, time measuring section 907 determines whether or not a search result for finding the access point of the wireless LAN has been input (step ST1005).

  When a wireless LAN access point is found within a predetermined time, the mobile wireless device 900 ends the process. On the other hand, when a predetermined time has elapsed since a wireless LAN access point could not be found within the predetermined time, the time measurement unit 907 notifies the wireless setting unit 908 that the predetermined time has elapsed.

  Next, wireless setting section 908 changes to a wireless setting that can be used outside the country, and wireless communication section 901 performs communication according to the wireless setting that can be used outside the country (step ST1006).

  As described above, according to the present embodiment, the wireless state determination unit 902 determines that the wireless state is out of the communication range, and does not immediately change the wireless setting to be usable outside the country. By changing to a possible wireless setting, an increase in current consumption can be suppressed by not inadvertently changing the wireless setting. Also, according to the present embodiment, since the time measurement is started when the AP identifier stored in advance matches the AP identifier of the access point connected immediately before going out of communication range, The movement to can be accurately grasped. Further, according to the present embodiment, when the predetermined time for notifying the wireless setting unit 908 that the predetermined time has passed is changed according to the AP identifier, the movement from the country to the country is taken into consideration in consideration of the movement time. It is possible to judge the movement from the country to the country more accurately. Further, according to the present embodiment, it is possible to detect the movement of a wireless mobile device from the country to the outside without requiring a plurality of wireless communication units. This is because the power of the wireless mobile device is turned off in an airplane or the like, and this can be used to effectively detect the movement of the wireless mobile device overseas. Further, even in a dual wireless mobile device operating in the wireless LAN single mode, it is possible to detect the movement to overseas effectively by the same method.

(Embodiment 6)
FIG. 11 is a block diagram showing a configuration of mobile radio apparatus 1100 according to the embodiment of the present invention.

  The wireless communication unit 1101 performs wireless communication using a 2.4 GHz band such as a wireless LAN in accordance with an instruction from a wireless setting unit 1108 described later. Then, the wireless communication unit 1101 outputs a signal received through wireless communication to the AP search unit 1102.

  The AP search unit 1102 periodically searches for a wireless LAN access point (AP) using the received signal input from the wireless communication unit 1101. In addition, when the AP search unit 1102 finds an access point of the wireless LAN, the AP search unit 1102 extracts the AP identifier of the found access point. Then, the AP search unit 1102 causes the AP search result storage unit 1103 to store the extracted AP identifier as a search result each time. The search results stored in the AP search result storage unit 1103 include AP identifiers of wireless LAN access points existing around the mobile wireless device 1100. Here, the AP identifier is, for example, an SSID.

  Whenever an AP identifier is input from the AP search unit 1102, the AP search result storage unit 1103 updates the search result by updating and holding the AP identifier.

  The AP identifier storage unit 1104 holds the AP identifier as a database. For example, the AP identifier storage unit 1104 holds an AP identifier of an access point that can communicate with a gate for getting on a transportation facility moving from the country to the outside.

  The power management unit 1105 outputs the detection result of power off of the mobile radio apparatus 1100 to the AP identifier determination unit 1106. In addition, the power management unit 1105 outputs the power-on detection result to the time measurement unit 1107.

  The AP identifier determination unit 1106 receives an AP identifier stored in the AP search result storage unit 1103 and an AP identifier stored in the AP identifier storage unit 1104 when a power off detection result is input from the power management unit 1105. Whether or not matches is determined. Then, the AP identifier determination unit 1106 instructs the time measurement unit 1107 to hold the time when the AP identifiers match.

  The time measurement unit 1107 holds the time according to the instruction from the AP identifier determination unit 1106. Further, when the power-on detection result is input from the power management unit 1105, the time measurement unit 1107 obtains the time from the time when the power-off detection result is input to the time when the power-on detection result is input. Also, the time measuring unit 1107 determines whether or not the obtained time is equal to or longer than a predetermined time. When the time measuring unit 1107 determines that the time is equal to or longer than the predetermined time, the time measuring unit 1107 notifies the wireless setting unit 1108 that the time is longer than the predetermined time. The time measurement unit 1107 changes a predetermined time to be compared with the time from the time when the power-off detection result is input to the time when the power-on detection result is input according to the AP identifier stored in the AP identifier storage unit 1104. can do.

  When the wireless setting unit 1108 receives a notification from the time measurement unit 1107 that a predetermined time has elapsed, the wireless setting unit 1108 changes the wireless setting parameter usable in Japan to the wireless setting parameter usable outside of the country. Then, the wireless setting unit 1108 instructs the wireless communication unit 1101 to perform communication using the changed wireless setting parameter.

  Next, the operation of mobile radio apparatus 1100 will be described using FIG. FIG. 12 is a flowchart showing the operation of mobile radio apparatus 1100.

  First, AP search section 1102 searches for an access point, and AP search result storage section 1103 holds the AP identifier of the access point found by the search (step ST1201).

  Next, AP identifier determination section 1106 determines whether or not power management section 1105 detects power off (step ST1202).

  If power off is not detected, the AP search result storage unit 1103 continues to store the AP identifier. On the other hand, when the power-off is detected, the AP identifier determination unit 1106 compares the AP identifier held in the AP search result storage unit 1103 with the AP identifier stored in the AP identifier storage unit 1104, It is determined whether or not the AP identifiers match (step ST1203).

  If the AP identifiers do not match, the mobile radio apparatus 1100 terminates the process, and if the AP identifiers match, the time measurement unit 1107 stores the time when the power management unit 1105 detects power off ( Step ST1204).

  Next, power management section 1105 detects power-on (step ST1205).

  Next, time measuring section 1107 determines whether or not the time from the stored time to the time when the power-on detection result is input is a predetermined time or more (step ST1206).

  If it is not longer than the predetermined time, the mobile radio apparatus 1100 ends the process. On the other hand, if it is longer than the predetermined time, wireless setting section 1108 changes to a wireless setting that can be used outside the country, and wireless communication section 1101 performs communication according to the wireless setting that can be used outside the country (step ST1207).

  As described above, according to the present embodiment, when a predetermined time has elapsed from detection of power-off to detection of power-on, it is inadvertently changed to a wireless setting that can be used outside the country. By not changing the wireless setting, an increase in current consumption can be suppressed. Further, according to the present embodiment, it is possible to detect the movement of a wireless mobile device from the country to the outside without requiring a plurality of wireless communication units. This is because the power of the wireless mobile device is turned off in an airplane or the like, and this can be used to effectively detect the movement of the wireless mobile device overseas. Further, even in a dual wireless mobile device operating in the wireless LAN single mode, it is possible to detect the movement to overseas effectively by the same method. Also, according to the present embodiment, since the time measurement is started when the AP identifier stored in advance matches the AP identifier of the access point connected immediately before going out of communication range, The movement to can be accurately grasped. Further, according to the present embodiment, when the predetermined time for notifying the wireless setting unit 908 that the predetermined time has passed is changed according to the AP identifier, the movement from the country to the country is taken into consideration in consideration of the movement time. It is possible to judge the movement from the country to the country more accurately.

  The mobile radio apparatus and the communication apparatus setting change method according to the present invention are suitable for detecting movement from, for example, the country to the outside of the country.

1 is a block diagram showing a configuration of a mobile radio apparatus according to Embodiment 1 of the present invention. Flow chart showing operation of mobile radio apparatus according to Embodiment 1 of the present invention. Block diagram showing a configuration of a mobile radio apparatus according to Embodiment 2 of the present invention Flow chart showing operation of mobile radio apparatus according to Embodiment 2 of the present invention. Block diagram showing a configuration of a mobile radio apparatus according to Embodiment 3 of the present invention Flow chart showing operation of mobile radio apparatus according to Embodiment 3 of the present invention. Block diagram showing the configuration of a mobile radio apparatus according to Embodiment 4 of the present invention Flow chart showing operation of mobile radio apparatus according to Embodiment 4 of the present invention. Block diagram showing a configuration of a mobile radio apparatus according to Embodiment 5 of the present invention FIG. 7 is a flowchart showing the operation of the mobile radio apparatus according to the fifth embodiment of the present invention. Block diagram showing the configuration of a mobile radio apparatus according to Embodiment 6 of the present invention Flow chart showing operation of mobile radio apparatus according to Embodiment 6 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Mobile radio | wireless apparatus 101 1st radio | wireless communication part 102 1st radio | wireless state judgment part 103 Time measurement part 104 2nd radio | wireless setting part 105 2nd radio | wireless communication part

Claims (14)

A wireless state determination means for analyzing a received signal to determine whether the mobile communication network is out of communication range or communication range;
Time measurement means for starting time measurement when the wireless state determination means determines that it is out of communication range; and
A wireless setting unit that changes communication settings when the wireless state determination unit does not determine that it is within a communication area until a predetermined time elapses after the time measurement unit starts measurement;
A mobile radio apparatus comprising: The wireless state determination means determines whether the mobile communication network of the first communication method is out of communication range or within communication range,
The mobile radio apparatus according to claim 1, wherein the radio setting unit changes a communication setting of a second communication method that is a communication method different from the first communication method. Among identifiers for identifying base stations, comprising identifier storage means for storing the predetermined identifiers in advance,
The time measuring unit is configured to detect a time when the identifier stored in the identifier storage unit coincides with the identifier of the base station connected when the wireless state determining unit determines that it is out of a communication range. The mobile radio apparatus according to claim 1 or 2, wherein measurement is started. The identifier storage means stores the identifier of a base station that can communicate with a gate for getting on a transportation facility moving from the country to the country,
The mobile radio apparatus according to claim 3, wherein the radio setting unit changes the setting to allow communication outside of the country. Power management means for detecting power on and power off; and
A time measuring means for obtaining a time from a time when the power-off is detected by the power management means to a time when the power-on is detected;
Wireless setting means for changing communication settings when the obtained time is a predetermined time or more;
A mobile radio apparatus comprising: Among identifiers for identifying base stations, comprising identifier storage means for storing the predetermined identifiers in advance,
The time measuring means obtains the time when the identifier of the base station connected when the power management means detects power off and the identifier stored in the identifier storage means match. The mobile radio apparatus according to claim 5. The identifier storage means stores the identifier of a base station that can communicate with a gate for getting on a transportation facility moving from the country to the country,
The mobile radio apparatus according to claim 6, wherein the radio setting unit changes the setting to allow communication outside of the country. Among identifiers for identifying access points, identifier storage means for storing the predetermined identifier in advance;
A search means for performing access point search;
Search result storage means for sequentially updating and storing each time the identifier of the access point found by the search is found,
The time measurement unit is configured to detect the power stored in the search result storage unit and the identifier stored in the identifier storage unit when the power management unit detects power-off. The mobile radio apparatus according to claim 5, wherein the time is obtained. The identifier storage means stores the identifier of an access point that can communicate with a gate for getting on a transportation facility moving from the country to the country,
The mobile radio apparatus according to claim 8, wherein the radio setting unit changes the setting to enable communication outside of the country. Among identifiers that are information for identifying a communication partner, identifier storage means for storing the predetermined identifier in advance;
A radio state determination means for analyzing a received signal and determining whether the communication signal is out of communication range or communication range;
Search means for executing a search for a communication partner when it is determined that the wireless state determination means is out of communication range;
Search result storage means for sequentially updating and storing each time the identifier of the communication partner found by the search is found;
Time measuring means for starting time measurement when the identifier stored in the identifier storage means matches the identifier stored in the search result storage means when a communication partner cannot be found by the search; ,
A wireless setting means for changing a communication setting when the search means cannot find a communication partner before the predetermined time elapses to be measured;
A mobile radio apparatus comprising: The identifier storage means stores the identifier of an access point that can communicate with a gate for getting on a transportation facility moving from the country to the country,
The mobile radio apparatus according to claim 10, wherein the radio setting unit changes the setting to allow communication outside of the country. Analyzing the received signal to determine whether it is out of range or within range of the mobile communication network; and
Starting time measurement when it is determined that it is out of range,
Changing the setting of the communication device when it is not determined that the communication area is within a predetermined time from the start of the measurement; and
A method for changing the setting of a communication apparatus comprising: Detecting power on and power off;
Obtaining a time from the time when the power-off is detected to the time when the power-on is detected;
Changing the setting of the communication device when the obtained time is a predetermined time or more;
A method for changing the setting of a communication apparatus comprising: Among identifiers that are information for identifying communication partners, identifier storage means for storing in advance the identifier in the identifier storage means;
Analyzing the received signal to determine whether it is out of range or within range,
Performing a search for a communication partner when it is determined that it is out of range,
Each time the identifier of the communication partner found by the search is found, it is sequentially updated and stored in the search result storage means;
Starting measurement of time when the identifier stored in the identifier storage means matches the identifier stored in the search result storage means when a communication partner cannot be found by the search;
Changing the setting of the communication device when the communication partner cannot be found by the search before the predetermined time has elapsed,
A method for changing the setting of a communication apparatus comprising:

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