WO2011111443A1 - 携帯通信端末装置、携帯通信端末装置の消費電力制御方法および記録媒体 - Google Patents
携帯通信端末装置、携帯通信端末装置の消費電力制御方法および記録媒体 Download PDFInfo
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- WO2011111443A1 WO2011111443A1 PCT/JP2011/052127 JP2011052127W WO2011111443A1 WO 2011111443 A1 WO2011111443 A1 WO 2011111443A1 JP 2011052127 W JP2011052127 W JP 2011052127W WO 2011111443 A1 WO2011111443 A1 WO 2011111443A1
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- Prior art keywords
- wireless communication
- position information
- terminal device
- wireless
- communication terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0257—Hybrid positioning
- G01S5/0263—Hybrid positioning by combining or switching between positions derived from two or more separate positioning systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to a mobile communication terminal device, a power consumption control method for a mobile communication terminal device, and a recording medium, and more particularly to a mobile communication terminal device having a plurality of wireless communication functions, a power consumption control method for a mobile communication terminal device, and a recording medium. .
- 3G third generation
- W-LAN Wireless-Local Area Network
- a mobile communication terminal device that has both functions of a W-LAN communication function for wireless communication by connecting to a point.
- Such a mobile communication terminal device is used as a mobile phone device and used as an IP phone terminal or a high-speed Internet access terminal as a W-LAN communication terminal device.
- the execution of W-LAN communication by the mobile communication terminal device is limited to a place where W-LAN communication can be executed such as a home or work place or a hot spot providing a W-LAN connection service. Therefore, when the W-LAN communication function of the mobile communication terminal device maintains the operating state even in a place where W-LAN connection is not possible, the W-LAN communication function consumes useless power. In order to prevent the waste of power of the mobile communication terminal device equipped with such a W-LAN communication function, in the situation where the W-LAN communication function cannot be used, the wasteful power consumption by the W-LAN communication function is suppressed. There was a need to do.
- the position information of the mobile terminal is detected using a signal from a GPS (Global Positioning System) satellite, and the position information of the access point registered in advance is compared with the detected position information.
- a technique for controlling the power supply of the wireless LAN adapter (Patent Document 1) and broadcast information indicating the presence / absence of the wireless LAN base station transmitted from the mobile phone base station are received, and wireless communication is performed according to the received broadcast information.
- a technique (Patent Document 3) that performs power supply control of a wireless LAN communication unit is known.
- position information of the mobile communication terminal apparatus can be obtained at low cost and with simple signal processing.
- An object is to uniquely determine and realize power control of a wireless communication function based on this position information.
- a first wireless communication means for transmitting / receiving a first wireless signal
- a second wireless communication means for transmitting / receiving a second wireless signal to / from a second wireless base station
- First position information generating means for generating first position information indicating a position where the first wireless signal is received based on the first wireless signal received by the first wireless communication means
- the second position information is generated as second position information that represents the position where wireless communication is possible between the second wireless communication means and the second wireless communication base station, among the first position information.
- Position information generating means wireless communication operation determining means for determining whether or not wireless communication operation by the second wireless communication means is possible based on the first position information and the second position information, and the wireless communication
- the second radio according to the determination result by the operation determination means Characterized in that it comprises a power control means for performing power control signal means.
- the first position information representing the position where the first radio signal is received is generated, and the first By using this position information, it is possible to determine whether or not the wireless communication operation by the second wireless communication means is possible. That is, the position information of the apparatus can be uniquely expressed using the system in the first wireless communication, and whether or not the wireless communication operation by the second wireless communication means can be determined based on the position information. .
- the operation of the other wireless communication function is determined based on the position information of the device generated using the signal received by the one wireless communication function.
- unnecessary power consumption of the mobile communication terminal device can be suppressed, and the operable time, so-called standby time can be extended.
- the configuration since the position information of the device is generated using the signal received by the wireless communication means provided in the mobile communication terminal device according to the present invention, the configuration includes information management of expensive devices and base stations and complicated signal processing. The unnecessary power consumption of the portable communication terminal device can be suppressed and the standby time can be extended by easy signal processing with a low-cost configuration.
- FIG. 1 is a block diagram showing the configuration of the mobile communication terminal apparatus according to the first embodiment of the present invention.
- FIG. 2 is a flowchart showing the operation of the portable communication terminal apparatus according to the first embodiment of the present invention.
- FIG. 3 is a block diagram showing a configuration of a portable communication terminal apparatus according to the second embodiment of the present invention.
- FIG. 4 is a diagram conceptually illustrating the first radio signal transmitted from the mobile phone base station and the positional relationship.
- FIG. 5 is a flowchart showing a power control operation by the portable communication terminal device according to the second embodiment of the present invention.
- FIG. 6 is a block diagram showing a configuration of a mobile communication terminal apparatus according to the third embodiment of the present invention.
- FIG. 7 is a flowchart showing a power control operation by the portable communication terminal device according to the third embodiment of the present invention.
- FIG. 1 is a block diagram showing the configuration of the mobile communication terminal apparatus according to the first embodiment of the present invention.
- the mobile communication terminal device 10 according to the present embodiment is a mobile communication terminal device having different wireless communication means, and in particular, performs power control of one of the wireless communication means according to the position of the own device.
- the mobile communication terminal device 10 includes a first wireless communication unit, a second wireless communication unit 120, a first position information generation unit 130, The position information generation unit 140, the wireless communication operation determination unit 150, and the power supply control unit 160 are configured.
- the first wireless communication unit 110 performs the first wireless communication by transmitting and receiving the first wireless signal to and from the first wireless communication base station corresponding to the first wireless signal.
- the second radio communication unit 120 executes the second radio communication by transmitting and receiving the second radio signal to and from the second radio communication base station corresponding to the second radio signal.
- the first position information generation unit 130 Based on the first radio signal received by the first radio communication unit 110, the first position information generation unit 130 generates first position information indicating the position where the first radio signal is received. .
- the second position information generation unit 140 generates first position information as a second position information at a position where wireless communication is possible between the second wireless communication unit 120 and the second wireless communication base station. .
- the wireless communication operation determination unit 150 determines whether or not the wireless communication operation by the second wireless communication unit 120 is possible based on the first position information and the second position information.
- the power supply control unit 160 controls the power supply of the second wireless communication unit 120 according to the determination result by the wireless communication operation determination unit 150.
- Each component of the mobile communication terminal device 10 is realized by installing a computer program (software) in a computer including a CPU (Central Processing Unit), a memory, and an interface.
- a computer program software
- Various functions of the communication terminal device 10 are realized by cooperation of various hardware resources of the computer and the computer program.
- the computer program may be provided in a state stored in a recording medium such as a computer-readable CD-ROM, hard disk, or semiconductor memory, and provided in a state readable by the computer via an electric communication line. May be.
- the second position information generation unit 140 of the mobile communication terminal device 10 first receives the first wireless received at this position for the position information indicating the position where the second wireless communication can be performed. Based on the signal, the first position information generated by the first position information generation unit 130 is generated as second position information (S101).
- the first wireless communication unit 110 receives the first wireless signal (S102).
- the first position information generation unit 130 When receiving the first radio signal, the first position information generation unit 130 generates first position information indicating the position of the own device when the first radio communication unit 110 receives the first radio signal. (S103).
- the wireless communication operation determination unit 150 When the first position information is generated, the wireless communication operation determination unit 150 generates the second position information generated by the second position information generation unit 140 and the first position information generation unit 130. Based on the first position information, it is determined whether or not the wireless communication operation by the second wireless communication unit 120 is possible (S104), and the power control of the second wireless communication unit 120 is performed based on the determination result. 160 is executed (S105).
- the mobile communication terminal device According to the mobile communication terminal device according to the present embodiment, unnecessary power consumption is suppressed by executing power control of one of the wireless communication function units based on the position information of the device, and mobile communication
- the operable time of the terminal device that is, the so-called standby time can be extended.
- the position information of the apparatus is generated by using the signal received by the wireless communication means provided in the mobile communication terminal apparatus, a configuration such as expensive device and base station information management and complicated signal processing is not required.
- the unnecessary power consumption of the portable communication terminal device can be suppressed and the standby time can be extended by easy signal processing with a low-cost configuration.
- FIG. 3 is a block diagram showing the configuration of the mobile communication terminal apparatus according to the second embodiment of the present invention.
- the mobile communication terminal device 20 according to the present embodiment is a mobile communication terminal device that includes, as different wireless communication means, a wireless communication means using a mobile phone and a wireless communication means using a wireless LAN, and a power source for the wireless communication means using the wireless LAN. Control is performed in accordance with the position of the own device.
- the mobile communication terminal device 20 includes a control unit 200 that controls the operation of each component of its own device, and a mobile phone function unit that executes wireless communication in a mobile phone communication network. 210, a wireless LAN communication function unit 220 that performs wireless communication in a wireless LAN, a storage unit 230, an operation unit 240, and a display unit 250.
- the mobile phone function unit 210 executes mobile phone communication by transmitting and receiving a radio band signal (hereinafter referred to as “first radio signal”) in the mobile phone communication network to and from the mobile phone base station An. .
- the wireless LAN communication function unit 220 performs wireless LAN communication by transmitting and receiving a wireless band signal (hereinafter referred to as “second wireless signal”) in wireless LAN communication to and from the wireless LAN base station B.
- the storage unit 230 stores information such as programs (software) and various data.
- a memory device such as a hard disk, RAM, or ROM.
- the operation unit 240 is an interface for input information by an operation from the user.
- a key input device such as a keyboard or a touch panel.
- the display unit 250 is a display device such as a display that displays image data.
- the control unit 200 includes a position information generation unit 201, a wireless LAN activation position information generation unit 202, a wireless LAN communication operation determination unit 203, and a power supply control unit 204.
- the position information generation unit 201 Based on the first radio signal transmitted from the mobile phone base stations A1 to An received by the mobile phone function unit 210, the position information generation unit 201 receives the first radio signal. Position information indicating the position (hereinafter referred to as “first position information”) is generated and stored in the storage unit 230.
- FIG. 4 is a conceptual diagram showing an example of a positional relationship of transmission radio wave ranges of a plurality of mobile phone base stations (BS1 to BS5 in this case).
- BS1 to BS5 mobile phone base stations
- FIG. 4 the case where the mobile communication terminal device 20 is located at the point (a) illustrated in FIG. 4 will be described as an example.
- the mobile phone function unit 210 of the mobile communication terminal device 20 receives the first radio signal transmitted from each of the BS1, BS2, and BS3 as shown in FIG. Therefore, the position information generation unit 201 specifies the frequency information in the first radio signal transmitted from BS1 based on the first radio signal from BS1, the base station information specifying BS1, and the BS adjacent to BS1.
- the adjacent base station information is extracted, and similarly, frequency information, base station information, and adjacent base station information corresponding to BS2 and BS3 are extracted.
- the base station information and the adjacent base station information can be extracted from the control information included in the received first radio signal, and can be arbitrary ID data for specifying each base station.
- the position information generation unit 201 generates first position information in which the extracted frequency information, base station information, and adjacent base station information are associated for each BS, and stores the generated first position information in the storage unit 230.
- first position information representing the point (a) shown in FIG. 4 generated by the position information generation unit 201 is shown in Table 1.
- the position information generation unit 201 extracts the extracted frequency information, base station information, and adjacent base stations as shown in Table 1. By storing the information in association with each of BS1, BS2, and BS3, it is possible to generate the first position information that uniquely represents the point (a).
- the wireless LAN activation position information generation unit 202 determines a position (wireless LAN activation position) where the wireless LAN communication function unit 220 can perform wireless LAN communication by transmitting and receiving the second wireless signal to and from the wireless LAN base station B.
- the represented position information (hereinafter referred to as “second position information”) is generated, and the generated second position information is stored in the storage unit 230.
- the second position information can be the first position information generated by the position information generation unit 210 at the wireless LAN activation position, and this position information is referred to as “wireless LAN activation position information”.
- the first position information generated by the position information generation unit 201 at the point (b) is the wireless LAN activation position (b).
- the second position information that uniquely represents the wireless LAN activation position information.
- the wireless LAN communication operation determination unit 203 compares the first position information and the wireless LAN activation position information to identify whether or not the contents of the position information match, and the position represented by the first position information
- the wireless LAN communication function unit 220 determines whether the wireless LAN communication operation is possible. For example, when both the first position information and the wireless LAN activation position information are position information representing the point (a) shown in FIG. 4, the wireless LAN communication determination unit 203 determines that the first position information and the wireless LAN activation When the position information is compared, it can be recognized that both pieces of position information have the same contents.
- the wireless LAN communication determination unit 203 can determine that the position represented by the first position information and the wireless LAN activation position are represented by the same position information, and the wireless LAN communication function unit 220 can perform wireless LAN communication. The operation is determined as “OK”.
- the wireless LAN communication operation determination unit 203 when the first position information is position information representing the point (a) shown in FIG. 4 and the wireless LAN activation position information is position information representing the point (b), the wireless LAN communication operation determination unit 203 When the first position information and the wireless LAN activation position information are compared, it can be recognized that both pieces of position information have different contents. That is, the wireless LAN communication determination unit 203 can determine that the position represented by the first position information and the wireless LAN activation position are represented by different position information, and the wireless LAN communication function unit 220 performs the wireless LAN communication operation. Is determined as “No”.
- the power control unit 204 executes power control for the wireless LAN communication function unit 220 based on the determination result of the wireless LAN communication determination unit 203. For example, when the determination result of the wireless LAN communication operation by the wireless LAN communication operation determination unit 203 is “Yes”, the power control unit 204 executes power control for supplying power to the wireless LAN communication function unit 220, On the other hand, if the determination result is “No”, power control for cutting off the power to the wireless LAN communication function unit 220 is executed.
- Each component of the mobile communication terminal device 20 is realized by installing a computer program (software) in a computer including a CPU (Central Processing Unit), a memory, and an interface.
- a computer program software
- Various functions of the communication terminal device 20 are realized by cooperation of various hardware resources of the computer and the computer program.
- the computer program may be provided in a state stored in a recording medium such as a computer-readable CD-ROM, hard disk, or semiconductor memory, and provided in a state readable by the computer via an electric communication line. May be.
- the mobile communication terminal device 20 first determines whether or not to generate / update wireless LAN activation position information (S201), and when the wireless LAN activation position information is not generated / updated. (“No” in S201), the wireless LAN activation position information generation / update standby state is entered. On the other hand, when the wireless LAN activation location information is generated / updated (“Yes” in S201), the location information generation unit 201 uses the first location information from the first radio signal received by the mobile phone function unit 210. Is generated (S202).
- the determination of the generation / update of the wireless LAN activation position information may be performed by an explicit operation of the operation unit 240 by the user, or may be automatically performed periodically.
- the wireless LAN activation position information generation unit 202 stores the position information having the same content as the generated first position information as the wireless LAN activation position information. It is determined whether it is stored in the unit 230 (S203). When the same position information is stored (“Yes” in S203), the wireless LAN activation position information generation unit 202 enters a standby state without executing the update of the wireless LAN activation position information (S204). On the other hand, when the same position information is not stored (“No” in S203), the wireless LAN activation position information generation unit 202 uses the first position information generated by the position information generation unit 201 as the wireless LAN activation position information. Is stored in the storage unit 230 (S205).
- the wireless LAN activation position information stored in the storage unit 230 may be one position information or a plurality of different position information.
- the position information generation unit 201 When the wireless LAN activation position information is generated / updated, the position information generation unit 201 generates the first position information again from the first wireless signal received by the mobile phone function unit 210 (S206). When the first position information is generated again by the position information generation unit 201, the wireless LAN communication operation determination unit 203 causes the wireless LAN activation position information stored in the storage unit 230 and the first position information generated again. Are compared to identify whether or not these pieces of positional information match (S207).
- the wireless LAN communication operation determination unit 203 determines that the wireless LAN communication operation by the wireless LAN communication function unit 220 is “permitted”. Then, according to the determination result, the power supply control unit 204 determines the power state of the wireless LAN communication function unit 220 (S209).
- the power supply control unit 204 maintains the power state of the wireless LAN communication function unit 220 (S210). On the other hand, when power is not supplied (“Off state” in S209), the power control unit 204 executes power control for supplying power to the wireless LAN communication function unit 220 (S211).
- the wireless LAN communication operation determination unit 203 performs the wireless LAN communication operation by the wireless LAN communication function unit 220 as “ “No” is determined (S212), and the power supply control unit 204 determines the power state of the wireless LAN communication function unit 220 according to the determination result (S213).
- the power control unit 204 maintains the power state of the wireless LAN communication function unit 220 (S210).
- the power control unit 204 executes power control for turning off the power to the wireless LAN communication function unit 220 (S214).
- the mobile communication terminal device 20 generates position information that uniquely represents the position of the own device based on the first radio signal received from the mobile phone base station An. Since it is possible to determine whether or not wireless communication operation by the wireless LAN is possible based on the position information, and to realize power control of the wireless LAN communication means according to the determination result, unnecessary power in the mobile communication terminal device 20 Consumption can be suppressed, and the device operable time, so-called standby time, can be extended. In addition, since it is possible to generate location information of its own device using a mobile phone communication network, which is an existing system, it does not require expensive device and base station information management and complicated signal processing, and is low in cost. By simple signal processing with a simple configuration, unnecessary power consumption of the mobile communication terminal device can be suppressed, and the standby time can be extended.
- FIG. 6 is a block diagram showing the configuration of the mobile communication terminal device 30 according to the third embodiment of the present invention.
- a configuration for generating time information is added to the configuration of the mobile communication terminal device 20 described in the second embodiment, and power control for wireless communication means by a wireless LAN is performed. This is performed according to the position of the device itself and time information.
- symbol is attached
- the mobile communication terminal device 30 includes a mobile phone function unit 210 that transmits and receives a first radio signal to and from the mobile phone base station An, a wireless LAN base station B, A wireless LAN communication function unit 220 that transmits and receives the second wireless signal, a storage unit 230 that stores programs and data, an operation unit 240 that is an interface for input information, and a display unit 250 that displays display data.
- the control unit 300 controls the operation of each component and the RTC (real time clock) unit 310 that generates time information.
- the RTC unit 310 is a known technique that can be realized by, for example, an existing RTC dedicated IC (Integrated Circuit), and thus detailed description thereof is omitted.
- the control unit 300 represents a condition for operating the position information generation unit 201 that generates position information that uniquely represents the position based on the first wireless signal and the wireless LAN communication function unit 220.
- the wireless LAN activation condition generation unit 302 that generates the activation condition
- the wireless LAN communication operation determination unit 203 that determines whether to operate the wireless LAN communication function unit 220
- the wireless LAN communication operation determination unit 203 And a power control unit 204 that executes power control.
- the wireless LAN activation condition generation unit 302 represents a position where the wireless LAN communication function unit 220 can perform wireless LAN communication (wireless LAN activation position) by transmitting and receiving the second wireless signal to and from the wireless LAN base station B.
- the generated wireless LAN activation position information is generated.
- the wireless LAN activation condition generation unit 302 generates activation time information that defines the time at which the wireless LAN communication function unit 220 is activated.
- the activation time information may be arbitrarily set by an explicit operation of the operation unit 240 by the user, or may be selected by the user from a predetermined time range.
- the wireless LAN activation condition generation unit 302 stores the wireless LAN activation condition in which the generated wireless LAN activation position information and activation time information are associated with each other in the storage unit 230.
- the wireless LAN activation condition may be a condition in which one activation time information is associated with one wireless LAN activation position information, or a condition in which a plurality of activation time information is associated with one wireless LAN activation position information. . Further, a plurality of activation time information may be associated with a plurality of wireless LAN activation position information.
- Each component of the mobile communication terminal device 30 is realized by installing a computer program (software) in a computer including a CPU (Central Processing Unit), a memory, and an interface.
- a computer program software
- Various functions of the communication terminal device 30 are realized by cooperation of various hardware resources of the computer and the computer program.
- the computer program may be provided in a state stored in a recording medium such as a computer-readable CD-ROM, hard disk, or semiconductor memory, and provided in a state readable by the computer via an electric communication line. May be.
- the mobile communication terminal device 30 first generates / updates a wireless LAN activation condition, which is a condition for operating the wireless LAN communication function unit 220, in the wireless LAN activation condition generation unit 302. It is executed (S301).
- generation / update of the wireless LAN activation condition may be determined by an explicit operation of the operation unit 240 by the user, or may be automatically performed periodically.
- the wireless LAN activation condition generation unit 302 determines whether a wireless LAN activation condition having the same content as the newly generated wireless LAN activation condition is stored in the storage unit 230 (S302), and the same wireless LAN activation condition is determined. If the condition is stored (“Yes” in S302), the wireless LAN activation condition is not updated, and the process proceeds to a standby condition for generating / updating the wireless LAN activation condition (S303). On the other hand, if the same wireless LAN activation condition is not stored (“No” in S302), the wireless LAN activation condition generation unit 302 associates the newly generated wireless LAN activation position information with the activation time information. The wireless LAN activation condition is stored in the storage unit 230 (S304).
- the location information generation unit 201 When the wireless LAN activation condition is stored in the storage unit 230, the location information generation unit 201 generates first location information from the first radio signal received by the mobile phone function unit 210, and updates the location information of the device. (S305). When the position information generating unit 201 updates the position information of the device, the wireless LAN communication operation determining unit 203 causes the wireless LAN start condition information stored in the storage unit 230 and the updated device position to be updated. It is compared with the information to identify whether or not these pieces of position information match (S306).
- the wireless LAN communication operation determination unit 203 determines the activation time information of the wireless LAN activation condition and the time information generated by the RTC unit 310. And the information indicating the time stored in the activation time information matches the information indicating the time indicated by the RTC unit 310 (S307). For example, when “AM 9:00 to AM 10:00” is stored in the activation time information as the time at which the wireless LAN communication function unit 220 can be activated, the time indicated by the RTC unit 310 is “AM 09: 0”. 0:00 ”to“ AM10: 00 ”, the wireless LAN communication operation determination unit 203 identifies that they match, and identifies that they do not match if the time is other than that.
- the wireless LAN communication operation determination unit 203 uses the wireless LAN communication function unit 220 to perform wireless communication.
- the LAN communication operation is determined as “permitted” (S308).
- the power supply control unit 204 executes power supply control to turn on the power supply state of the wireless LAN communication function unit 220 in response to the “Yes” determination of the wireless LAN communication operation determination unit 203 (S309).
- the wireless LAN communication operation determination unit 203 determines that the wireless LAN communication operation by the wireless LAN communication function unit 220 is “No” (S310).
- the wireless LAN communication operation determination unit 203 detects that the time information generated by the RTC unit 310 is out of the time information stored in the activation time information of the wireless LAN activation condition, and performs the wireless LAN communication function.
- the wireless LAN communication operation by the unit 220 can also be determined as “No”.
- the power supply control unit 204 executes power control for turning off the power state of the wireless LAN communication function unit 220 (S311).
- the mobile communication terminal device 30 determines whether or not wireless communication operation by the wireless LAN is possible based on the activation time information in addition to the wireless LAN activation position information. Since the power control of the wireless LAN communication means according to the can be realized, more flexible power control of the wireless LAN communication function can be executed. Accordingly, unnecessary power consumption in the mobile communication terminal device can be further suppressed, and the device operable time, so-called standby time, can be further extended.
- the configuration using the mobile phone function has been described as the function for generating the position information of the device.
- a wireless communication function using another method for example, Bluetooth ( A similar function can be realized even with a configuration using a registered trademark or the like.
- the present invention is not limited to the matters described in the above-described embodiments.
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Abstract
Description
例えば、いわゆる第3世代(以下、「3G」とする。)携帯電話機として無線通信を行う携帯電話機能と、無線LAN(Wireless-Local Area Network;以下、「W-LAN」とする。)のアクセスポイントと接続して無線通信を行うW-LAN通信機能との両方の機能を備えた携帯通信端末装置がある。このような携帯通信端末装置は、携帯電話装置として用いられることと併せて、W-LAN通信端末装置としてIP電話端末や高速インターネットアクセス端末として用いられている。
このようなW-LAN通信機能を具備する携帯通信端末装置の電力の浪費を防ぐためには、W-LAN通信機能を使用不可である状況において、W-LAN通信機能による無駄な電力の消費を抑制する必要があった。
また、特許文献2に記載の技術では、携帯電話基地局の通信可能な範囲内に存在する無線LAN基地局の情報をサーバ装置等で予め管理しておく必要があるため、無線LAN基地局の情報管理に多大なコストを要するといった問題がある。
また、特許文献3に記載の技術では、携帯電話基地局からの受信信号強度の閾値に応じて携帯端末装置の位置情報が決定されるために、受信信号の受信品質によっては同じ位置であるにも拘わらず受信信号強度に誤差が生じるため、一義的に携帯端末装置の位置情報を決定するためには高度で煩雑な信号処理を行い誤差を補正する必要がある。
また、本発明における携帯通信端末装置が備える無線通信手段により受信された信号を利用して装置の位置情報を生成することから、高価なデバイスや基地局の情報管理や煩雑な信号処理といった構成を必要とせず、低コストな構成で容易な信号処理によって携帯通信端末装置の不必要な電力消費を抑制し、待ち受け時間を延長させることができる。
[第1の実施の形態]
図1は、本発明の第1の実施の形態にかかる携帯通信端末装置の構成を示すブロック図である。本実施の形態にかかる携帯通信端末装置10は、異なる無線通信手段を有する携帯通信端末装置であって、特に、一方の無線通信手段の電源制御を自装置の位置に応じて行うものである。
第2の無線通信部120は、第2の無線信号に対応する第2の無線通信基地局との間でこの第2の無線信号を送受信することにより、第2の無線通信を実行する。
第2の位置情報生成部140は、第2の無線通信部120と第2の無線通信基地局との間で無線通信が可能な位置における第1の位置情報を第2の位置情報として生成する。
電源制御部160は、無線通信動作判定部150による判定結果に応じて、第2の無線通信部120の電源を制御する。
また、上記コンピュータプログラムは、コンピュータが読み取り可能なCD-ROMやハードディスクまたは半導体メモリなどの記録媒体に格納された状態で提供されても良く、電気通信回線を介してコンピュータが読み取り可能な状態で提供されても良い。
図2に示すように、携帯通信端末装置10の第2の位置情報生成部140は、はじめに第2の無線通信が実行可能である位置を表す位置情報について、この位置で受信した第1の無線信号に基づいて第1の位置情報生成部130によって生成された第1の位置情報を第2の位置情報として生成する(S101)。
また、携帯通信端末装置が備える無線通信手段により受信された信号を利用して装置の位置情報を生成することから、高価なデバイスや基地局の情報管理や煩雑な信号処理といった構成を必要とせず、低コストな構成で容易な信号処理によって携帯通信端末装置の不必要な電力消費を抑制し、待ち受け時間を延長させることができる。
図3は、本発明の第2の実施の形態にかかる携帯通信端末装置の構成を示すブロック図である。本実施の形態にかかる携帯通信端末装置20は、異なる無線通信手段として携帯電話による無線通信手段と無線LANによる無線通信手段とを備える携帯通信端末装置であって、無線LANによる無線通信手段に対する電源制御を自装置の位置に応じて行うものである。
無線LAN通信機能部220は、無線LAN基地局Bとの間で無線LAN通信における無線帯域信号(以下、「第2の無線信号」とする。)を送受信することにより、無線LAN通信を実行する。
記憶部230は、プログラム(ソフトウエア)や各種データなどの情報を記憶する。例えば、ハードディスクやRAMやROMなどのメモリ装置である。
操作部240は、ユーザからの操作等による入力情報のインターフェースである。例えば、キーボードやタッチパネルなどのキー入力装置である。
表示部250は、画像データを表示するディスプレイなどの表示装置である。
制御部200は、位置情報生成部201と、無線LAN起動位置情報生成部202と、無線LAN通信動作判定部203と、電源制御部204とから構成されている。
図4は、複数の携帯電話基地局(ここではBS1~BS5)の送信電波範囲の位置関係の一例を示した概念図である。以下、図4に示した地点(a)に携帯通信端末装置20が位置している場合を例として説明する。
ここで、位置情報生成部201によって生成された図4に示す地点(a)を表す第1の位置情報の一例を、表1に示す。
無線LAN起動位置情報生成部202は、無線LAN通信機能部220が無線LAN基地局Bとの間で第2の無線信号を送受信することで無線LAN通信が可能な位置(無線LAN起動位置)を表した位置情報(以下、「第2の位置情報」という。)を生成し、生成した第2の位置情報を記憶部230へ記憶する。また、第2の位置情報は、無線LAN起動位置において位置情報生成部210が生成した第1の位置情報とすることができ、この位置情報を「無線LAN起動位置情報」とする。
ここで、図4に示す地点(b)を表した第1の位置情報の一例を表2に示す。
例えば、第1の位置情報と無線LAN起動位置情報とがともに図4に示す地点(a)を表す位置情報であった場合、無線LAN通信判定部203は、第1の位置情報と無線LAN起動位置情報とを比較すると、双方の位置情報が同一の内容であると認識できる。すなわち、無線LAN通信判定部203は、第1の位置情報によって表される位置と無線LAN起動位置とが同一の位置情報で表されていると判断でき、無線LAN通信機能部220による無線LAN通信動作を「可」と判定する。
例えば、無線LAN通信動作判定部203による無線LAN通信動作の判定結果が「可」であった場合には、電源制御部204は無線LAN通信機能部220へ電源を供給する電源制御を実行し、一方、判定結果が「否」であった場合には、無線LAN通信機能部220へ電源を切断する電源制御を実行する。
また、上記コンピュータプログラムは、コンピュータが読み取り可能なCD-ROMやハードディスクまたは半導体メモリなどの記録媒体に格納された状態で提供されても良く、電気通信回線を介してコンピュータが読み取り可能な状態で提供されても良い。
図5に示すように、携帯通信端末装置20は、はじめに無線LAN起動位置情報の生成・更新を実行するか否かを判定し(S201)、無線LAN起動位置情報の生成・更新がなされない場合(S201で「No」)、無線LAN起動位置情報の生成・更新の待機状態となる。一方、無線LAN起動位置情報の生成・更新がなされる場合(S201で「Yes」)、位置情報生成部201は、携帯電話機能部210によって受信される第1の無線信号から第1の位置情報を生成する(S202)。
ここで、無線LAN起動位置情報の生成・更新の判定は、ユーザによる操作部240の明示的な操作によって実行されても良く、定期的に自動で実行されるとしても良い。
同一の位置情報が記憶されている場合(S203で「Yes」)、無線LAN起動位置情報生成部202は、無線LAN起動位置情報の更新は実行せずに待機状態となる(S204)。一方、同一の位置情報が記憶されていない場合(S203で「No」)、無線LAN起動位置情報生成部202は、位置情報生成部201によって生成された第1の位置情報を無線LAN起動位置情報として記憶部230に記憶する(S205)。
ここで、記憶部230に記憶される無線LAN起動位置情報は、1つの位置情報であっても良く、複数の異なる位置情報であっても良い。
位置情報生成部201によって再び第1の位置情報が生成されると、無線LAN通信動作判定部203は、記憶部230に記憶されている無線LAN起動位置情報と再び生成された第1の位置情報とを比較して、これら位置情報が一致するか否かを識別する(S207)。
無線LAN通信機能部220に電源供給がなされている場合(S209で「On状態」)、電源制御部204は、無線LAN通信機能部220の電源状態を維持する(S210)。一方、電源供給がなされていない場合(S209で「Off状態」)、電源制御部204は無線LAN通信機能部220に対して電源を供給する電源制御を実行する(S211)。
無線LAN通信機能部220に電源供給がなされていない場合(S213で「Off状態」)、電源制御部204は、無線LAN通信機能部220の電源状態を維持する(S210)。一方、電源供給がなされている場合(S213で「On状態」)、電源制御部204は無線LAN通信機能部220に対して電源を切断する電源制御を実行する(S214)。
また、既存のシステムである携帯電話通信網を利用した自装置の位置情報を生成することができることから、高価なデバイスや基地局の情報管理や煩雑な信号処理といった構成を必要とせず、低コストな構成で容易な信号処理によって携帯通信端末装置の不必要な電力消費を抑制し、待ち受け時間を延長させることができる。
図6は、本発明の第3の実施の形態にかかる携帯通信端末装置30の構成を示すブロック図である。
本実施の形態にかかる携帯通信端末装置30は、第2の実施の形態において説明した携帯通信端末装置20の構成に時刻情報を生成する構成が追加され、無線LANによる無線通信手段に対する電源制御を自装置の位置と時間情報とに応じて行うものである。
なお、本実施の形態にかかる携帯通信端末装置30の構成および機能について、第2の実施の形態において説明した携帯通信端末装置20と同一の構成および機能を有するものについては同一符号を付し、これらの詳細な説明を省略する。
なお、RTC部310は、例えば、既存のRTC専用IC(Integrated Circuit)によって実現可能な公知の技術であるのため、詳細な説明は省略する。
無線LAN起動条件生成部302は、無線LAN通信機能部220が無線LAN基地局Bとの間で第2の無線信号を送受信することで無線LAN通信が可能な位置(無線LAN起動位置)を表した無線LAN起動位置情報を生成する。
さらに、無線LAN起動条件生成部302は、無線LAN通信機能部220を起動させる時刻を定めた起動時間情報を生成する。ここで、起動時間情報は、ユーザによる操作部240の明示的な操作によって任意に設定されても良く、予め定められた時間範囲からユーザによって選択されても良い。
ここで、無線LAN起動条件は、1つの無線LAN起動位置情報に1つの起動時間情報が関連付けられた条件でも良く、1つの無線LAN起動位置情報に複数の起動時間情報が関連付けられた条件でも良い。さらに、複数の無線LAN起動位置情報に複数の起動時間情報が関連付けられても良い。
また、上記コンピュータプログラムは、コンピュータが読み取り可能なCD-ROMやハードディスクまたは半導体メモリなどの記録媒体に格納された状態で提供されても良く、電気通信回線を介してコンピュータが読み取り可能な状態で提供されても良い。
図7に示すように、携帯通信端末装置30は、まずはじめに、無線LAN通信機能部220を動作させるか否かの条件である無線LAN起動条件の生成・更新を無線LAN起動条件生成部302に実行させる(S301)。ここで、無線LAN起動条件の生成・更新は、ユーザによる操作部240の明示的な操作によって実行されるか否かを決定しても良く、定期的に自動で実行されるとしても良い。
一方、同一の無線LAN起動条件が記憶されていない場合(S302で「No」)、無線LAN起動条件生成部302は、新たに生成された無線LAN起動位置情報と起動時間情報とが関連付けられた無線LAN起動条件を記憶部230に記憶する(S304)。
位置情報生成部201によって装置の位置情報が更新されると、無線LAN通信動作判定部203は、記憶部230に記憶されている無線LAN起動条件の無線LAN起動位置情報と更新された装置の位置情報とを比較して、これら位置情報が一致するか否かを識別する(S306)。
例えば、無線LAN通信機能部220を起動させることが可能な時刻として、「AM9:00~AM10:00」が起動時間情報に記憶されている場合、RTC部310によって示される時刻が「AM09:00:00」から「AM10:00:00」の間であったならば、無線LAN通信動作判定部203は一致すると識別し、それ以外の時刻であったならば一致しないと識別する。
電源制御部204は、無線LAN通信動作判定部203の「可」判定に応じて、無線LAN通信機能部220の電源状態をON状態とする電源制御を実行する(S309)。
また、無線LAN通信動作判定部203は、RTC部310によって生成される時刻情報が、無線LAN起動条件の起動時間情報に記憶されている時刻情報から外れたことを検知して、無線LAN通信機能部220による無線LAN通信動作を「否」と判定することもできる。
電源制御部204は、無線LAN通信動作判定部203の「否」判定に応じて、無線LAN通信機能部220の電源状態をOFF状態とする電源制御を実行する(S311)。
したがって、携帯通信端末装置における不必要な電力消費をさらに抑制することが可能となり、装置の動作可能時間、いわゆる待ち受け時間をさらに延長させることが可能となる。
Claims (7)
- 第1の無線信号を送受信する第1の無線通信手段と、
第2の無線基地局との間で第2の無線信号を送受信する第2の無線通信手段と、
前記第1の無線通信手段によって受信された前記第1の無線信号に基づいて、前記第1の無線信号を受信した位置を表す第1の位置情報を生成する第1の位置情報生成手段と、
前記第1の位置情報のうち、前記第2の無線通信手段と前記第2の無線通信基地局との間で無線通信が可能な位置を表す情報を第2の位置情報として生成する第2の位置情報生成手段と、
前記第2の無線通信手段による無線通信動作の可否を前記第1の位置情報と前記第2の位置情報とに基づいて判定する無線通信動作判定手段と、
前記無線通信動作判定手段による判定結果に応じて前記第2の無線通信手段の電源制御を行う電源制御手段と
を備えることを特徴とする携帯通信端末装置。 - 請求項1に記載された携帯通信端末装置において、
前記電源制御手段は、前記無線通信動作判定手段による判定結果が「可」であり前記第2の無線通信手段の電源が切断されている場合には、前記第2の無線通信手段へ電源を投入して前記第2の無線通信手段を起動させ、前記無線通信動作判定手段による判定結果が「否」であり前記第2の無線通信手段の電源が投入されている場合には、前記第2の無線通信手段への電源を切断して前記第2の無線通信手段を停止させるように構成されていることを特徴とする携帯通信端末装置。 - 請求項1に記載された携帯通信端末装置において、
前記第1の位置情報生成手段は、前記第1の無線通信手段により受信された前記第1の無線信号の周波数情報と、前記第1の無線信号の送信元である第1の無線通信基地局を特定する基地局情報と、前記第1の無線通信基地局に隣接する無線通信基地局を特定する隣接基地局情報とを関連付けた情報とを、前記第1の位置情報として生成するように構成されていることを特徴とする携帯通信端末装置。 - 請求項1に記載された携帯通信端末装置において、
前記無線通信動作判定手段は、前記第2の無線通信手段の起動時間を規定した起動時刻
情報と現在の時刻情報とを比較して前記第2の無線通信手段の無線通信動作の可否を判定
するように構成されていることを特徴とする携帯通信端末装置。 - 請求項4に記載された携帯通信端末装置において、
前記記憶手段は、前記第2の位置情報と前記起動時刻情報とを関連付けて記憶するように構成されていることを特徴とする携帯通信端末装置。 - 第1の無線通信基地局と携帯通信端末装置との間で第1の無線信号を送受信する第1の無線通信を実行するステップと、
第2の無線通信基地局と前記携帯通信端末装置との間で第2の無線信号を送受信する第2の無線通信を実行するステップと、
前記携帯通信端末装置によって受信された前記第1の無線信号に基づいて、前記第1の無線信号を受信した位置を表す第1の位置情報を生成するステップと、
前記第1の位置情報のうち、前記第2の無線通信を実行することが可能な位置を表す情報を第2の位置情報として生成するステップと、
前記第1の位置情報と前記第2の位置情報とに基づいて前記第2の無線通信の実行動作の可否を判定するステップと、
前記第2の無線通信の実行動作の判定結果が「可」である場合に、前記携帯端末装置が前記第2の無線通信を実行可能な状態とする電源制御を行うステップと、
前記第2の無線通信の実行動作の判定結果が「否」である場合に、前記携帯端末装置が前記第2の無線通信を実行不可な状態とする電源制御を行うステップと
を備えることを特徴とする携帯通信端末装置の消費電力制御方法。 - コンピュータに、
第1の無線通信基地局と携帯通信端末装置との間で第1の無線信号を送受信する第1の無線通信を実行するステップと、
第2の無線通信基地局と前記携帯通信端末装置との間で第2の無線信号を送受信する第2の無線通信を実行するステップと、
前記携帯通信端末装置によって受信された前記第1の無線信号に基づいて、前記第1の無線信号を受信した位置を表す第1の位置情報を生成するステップと、
前記第1の位置情報のうち、前記第2の無線通信を実行することが可能な位置を表す情報を第2の位置情報として生成するステップと、
前記第1の位置情報と前記第2の位置情報とに基づいて前記第2の無線通信の実行動作の可否を判定するステップと、
前記第2の無線通信の実行動作の判定結果が「可」である場合に、前記携帯端末装置が前記第2の無線通信を実行可能な状態とする電源制御を行うステップと、
前記第2の無線通信の実行動作の判定結果が「否」である場合に、前記携帯端末装置が前記第2の無線通信を実行不可な状態とする電源制御を行うステップと
を実行させるプログラムを記録したコンピュータ読み取り可能な記録媒体。
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JP2012504357A JPWO2011111443A1 (ja) | 2010-03-08 | 2011-02-02 | 携帯通信端末装置、携帯通信端末装置の消費電力制御方法およびプログラム |
US13/583,538 US9078213B2 (en) | 2010-03-08 | 2011-02-02 | Mobile communication terminal apparatus, method of controlling power consumption of mobile communication terminal apparatus, and recording medium |
EP11753105.3A EP2547082B1 (en) | 2010-03-08 | 2011-02-02 | Mobile communication terminal apparatus, method for controlling power consumption of mobile communication terminal apparatus, and recording medium |
CN2011800132541A CN102792666A (zh) | 2010-03-08 | 2011-02-02 | 移动通信终端装置、控制移动通信终端装置的电力消耗的方法和记录介质 |
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US20130065653A1 (en) | 2013-03-14 |
JPWO2011111443A1 (ja) | 2013-06-27 |
EP2547082A1 (en) | 2013-01-16 |
JP2016026423A (ja) | 2016-02-12 |
US9078213B2 (en) | 2015-07-07 |
CN102792666A (zh) | 2012-11-21 |
EP2547082B1 (en) | 2019-06-26 |
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