WO2014132549A1 - 携帯情報端末、通信制御方法、及びプログラム - Google Patents
携帯情報端末、通信制御方法、及びプログラム Download PDFInfo
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- WO2014132549A1 WO2014132549A1 PCT/JP2014/000265 JP2014000265W WO2014132549A1 WO 2014132549 A1 WO2014132549 A1 WO 2014132549A1 JP 2014000265 W JP2014000265 W JP 2014000265W WO 2014132549 A1 WO2014132549 A1 WO 2014132549A1
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- portable information
- terminal
- information terminal
- host terminal
- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
- H04W28/0221—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices power availability or consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
- H04W40/32—Connectivity information management, e.g. connectivity discovery or connectivity update for defining a routing cluster membership
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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
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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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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- 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
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
- H04L67/303—Terminal profiles
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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
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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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 portable information terminal, a communication control method, and a program.
- the portable information terminal is connected to a base station to operate as a wireless router, and other devices owned by each individual are connected to the portable information terminal via a wireless LAN.
- a tethering function as a technique for connecting other devices to a network via a portable information terminal.
- Patent Document 1 provides an improved tethering system that allows a mobile information terminal to access the Internet via a host terminal that operates as a wireless router and also allows other services (applications) to be used. Has been proposed.
- the portable information terminal serving as the host terminal is fixed as in the general tethering technique. Therefore, in other portable information terminals, communication is possible in a better communication environment. Even if there is a problem, there is a problem that data communication is performed under a communication quality environment that is inferior to that, or the battery of the portable information terminal that is the host terminal runs out during communication and the communication is cut off. .
- the present invention provides a portable information terminal, a communication control method, and a program capable of realizing data communication with an efficient tethering function while preventing a specific portable information terminal from extremely draining a battery. With the goal.
- the portable information terminal of the present invention is connected to the base station using the first wireless communication, and operates as a host terminal that connects another portable information terminal to the base station using the second wireless communication.
- a group terminal connection status management unit that manages connection statuses of a plurality of portable information terminals belonging to the same group connected by the tethering function, and the group terminal connection status management unit
- the portable information terminal including its own terminal belonging to the same group, at least the reception quality with the base station, the remaining battery capacity, the contract allowable data communication speed, or the maximum data communication speed notified from the network
- a host terminal order determining unit that determines an order of selecting a portable information terminal to be the host terminal based on any one of the above, and the host terminal
- a mobile unit comprising: a control unit that controls whether to operate as the host terminal or to communicate with the base station via the host terminal based on a selection order determined by the order determination unit It is a terminal.
- the communication control method of the present invention connects to a base station using first wireless communication, and operates as a host terminal that connects another portable information terminal to the base station using second wireless communication.
- a communication control method by a portable information terminal having a group terminal connection status management step for managing connection states of a plurality of portable information terminals belonging to the same group connected by the tethering function, and a local terminal belonging to the same group Based on at least the reception quality with the base station, the remaining battery capacity, the contract allowable data communication speed, or the maximum data communication speed notified from the network, Host terminal order determination step for determining the order of selecting portable information terminals to be host terminals, and the host terminal order determination And a control step for controlling whether to operate as the host terminal or to communicate with the base station via the host terminal based on the selection order determined in step. .
- the program of the present invention has a tethering function that operates as a host terminal that connects to another base station using the second wireless communication while connecting to the base station using the first wireless communication.
- a portable information terminal including a group terminal connection status management function for managing a connection state of a plurality of portable information terminals belonging to the same group connected to the computer of the portable information terminal by the tethering function, the own terminal belonging to the same group,
- Host terminal order determination function for determining the order in which to select, the selection determined by the host terminal order determination function Based on the order, or to operate as a the host terminal is a program for causing to execute a control function, which controls whether to perform communication with the base station via the host terminal.
- FIG. 1 is a block diagram showing a configuration of a communication system 1000 including a server 100 and portable information terminals 200-1 to 200-3 according to an embodiment of the present invention.
- FIG. 2A is a block diagram showing a functional configuration of the server 100 according to the present embodiment
- FIG. 2B is a block diagram showing a functional configuration of the portable information terminals 200-1 to 200-3 according to the present embodiment.
- FIG. It is a flowchart for demonstrating operation
- FIG. 5 is a flowchart for explaining operation
- 5 is a flowchart for explaining a file sharing operation by the portable information terminal 200 according to the present embodiment.
- 5 is a flowchart for explaining a file sharing operation by the server 100 and the portable information terminal 200 according to the present embodiment.
- it is a flowchart for demonstrating operation
- FIG. 1 is a block diagram showing a configuration of a communication system 1000 including a server 100 and portable information terminals 200-1 to 200-3 according to an embodiment of the present invention.
- a server 100 is connected to a network 400 such as the Internet or a communication network via a base station 300.
- the portable information terminals 200-1, 200-2, and 200-3 are wireless routers capable of performing data communication with the base station 300 and data communication between portable information terminals using a wireless LAN (Local Area Network) or the like.
- Function tethering function).
- the portable information terminals 200-1 to 200-3 combine both functions, connect a specific portable information terminal as the host terminal 200H to the base station 300, and connect the other portable information terminals 200-2 and 200-3 to Connect to the host terminal 200H using a wireless LAN (tethering function).
- the portable information terminals 200-2 and 200-3 connect to the network 400 by communicating with the base station 300 via the host terminal 200H connected using the wireless LAN.
- the portable information terminal 200-1 is connected to the base station 300 as the host terminal 200H, and the portable information terminals 200-2 and 200-3 are the host terminal 200H using a wireless LAN. Connected to -1. That is, the portable information terminal 200-1 that is the host terminal 200H functions as a wireless router. As a connection method with the host terminal 200H, it is possible to use Bluetooth (registered trademark) or the like in addition to the wireless LAN.
- the mobile information terminals 200-1 to 200-3 receive at least the reception quality from the respective base stations 300, the remaining battery capacity of the terminals themselves, and the contracted allowable data in each mobile information terminal. Based on either the communication speed or the maximum data communication speed notified from the network 400, the portable information terminal 200 serving as the host terminal 200H is switched (rotated) during tethering. The switching of the host terminal 200H can be performed on the portable information terminals 200-1 to 200-3 side, or can be performed by an instruction from the server 100.
- FIG. 2A is a block diagram showing a functional configuration of the server 100 according to the present embodiment
- FIG. 2B is a block diagram showing a functional configuration of the portable information terminals 200-1 to 200-3 according to the present embodiment.
- FIG. FIG. 2 shows only the configuration requirements according to the present invention, and the communication unit, the display unit, the input unit, and the like are omitted.
- the portable information terminals 200-1 to 200-3 are collectively referred to as the portable information terminal 200.
- the server 100 includes a host terminal order determination unit 101, a group terminal connection status management unit 102, a connection status sharing unit 103, and a control unit 104.
- the host terminal order determination unit 101 contracts at least the reception quality from the base station 300, the remaining battery capacity of each portable information terminal 200, and each portable information terminal 200 in each portable information terminal 200 that is tethered.
- the selection order of the host terminal 200H is determined in the tethered state from the portable information terminals 200-1 to 200-3 based on either the allowable data communication speed or the maximum data communication speed notified from the network 400. .
- reception quality, remaining battery capacity, and allowable data communication speed or maximum data communication speed are referred to as management information. Details of the method of determining the selection order of the host terminal 200H will be described later.
- the group terminal connection status management unit 102 manages the connection status of the portable information terminals 200-1 to 200-3 belonging to the same group connected by the tethering function. Specifically, the group terminal connection status management unit 102 identifies the portable information terminals 200-1 to 200-3 by a terminal ID assigned to each terminal, a MAC (Media Access Control) address, and the like. It manages which terminal is the host terminal 200H, which terminal is connected to the base station via the host terminal 200H, etc., with the owned terminals as the terminals of the same group.
- the connection status sharing unit 103 collects the management information in the portable information terminals 200-1 to 200-3 belonging to the same group from the portable information terminals 200-1 to 200-3 connected in the tethered state at predetermined time intervals. And manage.
- the control unit 104 comprehensively controls the operation of each unit by executing a predetermined program. Specifically, the control unit 104 instructs the portable information terminals 200-1 to 200-3 to move to the host terminal 200H according to the host terminal selection order determined by the host terminal order determination unit 101.
- the control unit 104 also manages the portable information terminals 200-1 to 200-3 belonging to the same group managed by the connection status sharing unit 103 when sharing the downloaded data between the portable information terminals 200-1 to 200-3.
- the management information in 200-3 (reception quality from base station 300, allowable data communication speed with which each portable information terminal 200 is contracted, or maximum data communication speed notified from network 400), Divided and distributed to portable information terminals 200-1 to 200-3 in the same group.
- control unit 104 can also divide the file data into a predetermined packet size and send it to the host terminal 200H. ing.
- the portable information terminal 200 includes a host terminal order determination unit 201, a group terminal connection status management unit 202, a download status storage unit 203, a temporary data storage unit 204, a connection status sharing unit 205, and A control unit 206 is provided.
- the host terminal order determination unit 201 is notified from at least the reception quality from the base station 300, the remaining battery capacity, the contracted allowable data communication speed, or the network 400 in each portable information terminal 200 in the tethering connection.
- the host terminal selection order is determined in the tethering state from the portable information terminals 200-1 to 200-3 based on any one of the maximum data communication speeds.
- the group terminal connection status management unit 202 manages the connection status of the mobile information terminals 200-1 to 200-3 belonging to the same group connected by the tethering function. This is basically the same function as the group terminal connection status management unit 102 of the server 100.
- the download status storage unit 203 stores the download status of shared data (what percentage, how many packets have been downloaded).
- the temporary data storage unit 204 temporarily stores data being downloaded.
- the connection status sharing unit 205 collects the management information in the portable information terminals 200-1 to 200-3 belonging to the same group from the portable information terminals 200-1 to 200-3 connected in the tethered state at predetermined time intervals. And manage. That is, the management information related to the portable information terminals 200-1 to 200-3 is shared and managed by both the server 100 and the portable information terminals 200-1 to 200-3.
- the control unit 206 comprehensively controls the operation of each unit by executing a predetermined program. Specifically, the control unit 206 performs control to switch the host terminal 200H in accordance with an instruction from the server 100 based on the host terminal selection order determined by the host terminal order determination unit 101. Further, the control unit 206 performs control to switch the host terminal 200H according to the host terminal selection order determined by the host terminal order determination unit 201 instead of the instruction of the server 100.
- the control unit 206 downloads data, develops the downloaded data, and stores the downloaded data temporarily when the data shared by the portable information terminals 200-1 to 200-3 is downloaded from the server 100. Save to 204, save (packet) data download status (what percentage, what packets, etc.) to download status storage unit 203, read download status from download status storage unit 203 when data download is resumed, etc. .
- the download status storage unit 203 and the temporary data storage unit 204 may be a rewritable nonvolatile memory such as a flash memory.
- FIG. 3 is a flowchart for explaining the operation of the server 100 according to the present embodiment.
- the server 100 connected to the base station 300 collects location information indicating the current location reported to the base station 300 from the portable information terminals 200-1 to 200-3 registered in the same group (step S10).
- the server 100 uses the group terminal connection status management unit 102 to determine whether or not the portable information terminal 200 exists in an area connectable with a wireless LAN (step S12). If the portable information terminal 200 is present in an area connectable by wireless LAN (YES in step S12), the server 100 notifies the corresponding portable information terminal 200 that tethering is possible by the control unit 104. (Step S14). On the other hand, when the portable information terminal 200 does not exist in an area connectable by wireless LAN (NO in step S12), step S14 is skipped.
- FIG. 4 is a flowchart for explaining the operation of the portable information terminal 200 according to the present embodiment.
- the portable information terminal 200 determines whether or not there is a portable information terminal 200 that is already operating as the host terminal 200H by the group terminal connection status management unit 202 (step S20). If there is a portable information terminal 200 that is already operating as the host terminal 200H (YES in step S16), the other portable information terminals 200 are connected to the host terminal 200H via the wireless LAN after confirming their connection permission. Connect (step S20). Thereafter, the process ends.
- the portable information terminals 200-1 to 200-3 designate the host terminal notified from the server 100. Based on the designation information, the host terminal 200H is selected (step S24). The host terminal designation method will be described later.
- the portable information terminal 200 selected as the host terminal 200H connects to the base station 300 (step S26), and the other portable information terminals 200 connect to the host terminal 200H via the wireless LAN (step S28). Thereafter, the process ends.
- the lower of the total contracted speed and the maximum communication speed of the portable information terminal serving as the host terminal or the maximum data communication speed notified from the network is set as the upper limit of the communication speed. May be. As a result, data communication that makes the best use of the line density can be realized.
- FIG. 5 is a flowchart for explaining the operation of the portable information terminal 200 in communication with the tethering function in the present embodiment.
- the portable information terminal 200 monitors the reception quality from the base station 300 and the remaining battery capacity for each portable information terminal at regular intervals during communication using the tethering function by the connection status sharing unit 205 (step S30).
- the host terminal 200H calculates an evaluation function from the reception quality, the remaining battery capacity, and the allowable data communication speed with which each portable information terminal 200 is contracted (step S32), and based on the calculated evaluation function
- the portable information terminal 200 to be the host terminal 200H is selected (step S34).
- the host terminal 200H determines whether or not a rotation for switching the host terminals in a predetermined order is necessary (step S36). For example, when the remaining battery capacity of the host terminal 200H is equal to or less than a predetermined threshold, or when there is a mobile information terminal 200 with higher reception quality, there is a mobile information terminal 200 with a higher allowable data communication speed. It is determined that rotation is necessary, for example. If rotation is necessary (YES in step S36), the host terminal 200H performs ordering for rotation by the host terminal order determination unit 201 (step S38).
- the priority may be set in descending order of reception quality, in order of increasing remaining battery capacity, in order of increasing allowable data communication speed, or in order of priority for each parameter.
- the ordering may be performed by weighting and calculating the parameters.
- the host terminal 200H notifies the ranking result to the server 100 connected to the base station 300 (step S40), and then the portable information terminals 200-1 to 200-3 are based on the order. Then, the host terminal 200H is rotated (switched) (step S42). Thereafter, the process ends.
- FIG. 6 is a flowchart for explaining the operation when the portable information terminal 200 is removed from the tethering state in the present embodiment.
- each of the portable information terminals 200-1 to 200-3 determines whether or not there is a portable information terminal 200 that is out of the tethering state (step S50). (NO in step S50), the process ends.
- step S50 determines whether or not there is a portable information terminal 200 that is out of the tethering state (YES in step S50).
- the portable information terminal 200 determines the next based on the ranking for rotation by the host terminal order determination unit 201.
- the ranking portable information terminal 200 is set as the host terminal 200H (step S54).
- the next-ranked portable information terminal 200 connects to the base station 300 as the host terminal 200H (step S56), and notifies the server 100 connected to the base station 300 that the host terminal 200H has been changed (step S56).
- Step S58) The other portable information terminal 200 connects to the portable information terminal 200 that has newly become the host terminal 200H via a wireless LAN (step S60). Thereafter, the process ends.
- the balance of the reception quality from the base station 300, the remaining battery capacity, the allowable data communication speed with which the mobile information terminal 200 is contracted, or the maximum data communication speed notified from the network 400 can be balanced.
- the tethering state can be continued while taking and a good communication environment can be maintained.
- FIG. 7 is a flowchart for explaining a file sharing operation by the portable information terminal 200 according to the present embodiment.
- the control unit 206 determines whether or not download based on file sharing is selected in the group based on a user instruction or a request from another portable information terminal 200 (step S70). ). If the download based on file sharing is not selected (NO in step S70), the process ends.
- the control unit 206 receives the management information of the connection status sharing unit 205 (reception with the base station 300). Based on the quality, remaining battery capacity, contract allowable data communication speed, or maximum data communication speed), the mobile information terminal 200 (at least one or a plurality of mobile information terminals 200) that performs divided download within the group is determined (step S72), The information is notified to the server 100 (step S74).
- the mobile information terminal 200 that performs divided download may be determined based on, for example, whether reception quality, remaining battery capacity, allowable data communication speed, or maximum data communication speed is equal to or greater than a predetermined threshold value. Good. Normally, all of the portable information terminals 200-1 to 200-3 shown in FIG. 1 are selected.
- the control unit 104 divides the designated file data according to the determined reception quality at the portable information terminal 200 and the contract allowable data communication speed or the maximum data communication speed, and determines the determined portable information. Distribution to the terminal 200 is started (step S76). The portable information terminal 200 expands the downloaded data every time the divided data is downloaded every predetermined amount, and reconstructs the data in each terminal (step S78).
- control unit 206 determines whether the download has failed during the download, that is, whether an error has occurred (step S80). If the download has not failed (NO in step S80), the control unit 206 determines whether the download has been completed (step S84). If it has not been completed (NO in step S84), the process returns to step S76 to continue the download.
- control unit 206 determines whether the failed data block can be retransmitted or reassigned to another portable information terminal 200. Is determined again based on the reception quality and the contract allowable data communication speed or the maximum data communication speed managed by the connection status sharing unit 205, and the portable information terminal 200 as the primary distribution destination is determined (step S82). ). Next, the control unit 206 determines whether or not the download is complete (step S84). If the download is not complete (NO in step S84), the control unit 206 returns to step S76 and continues the download. In this case, the portable information terminal 200 that performs divided download is changed due to the occurrence of an error. On the other hand, when the download is completed (YES in step S84), the process ends.
- FIG. 8 is a flowchart for explaining a file sharing operation by the server 100 and the portable information terminal 200 according to the present embodiment.
- the control unit 206 determines whether or not download based on file sharing is selected in the group based on a user instruction or a request from another portable information terminal 200 (step S90). ). If download based on file sharing is not selected (NO in step S80), the process ends.
- step S90 when download based on file sharing is selected (YES in step S90), in the host terminal 200H, the control unit 206 downloads shared data to the server 100 connected to the base station 300. Notification is made (step S92), and the other mobile information terminals 200 in the group are notified that download of shared data is started (step S94).
- the control unit 104 divides the designated data into packet data of a predetermined size and sends it out (step S96).
- the control unit 206 stores the update status in the download status storage unit 203 and the downloaded data in the temporary data storage unit 204 for the received packet data (step S98).
- step S100 the control unit 206 determines whether or not the download is complete. If the download is not complete (NO in step S102), the control unit 206 returns to step S96 and continues the download. On the other hand, when the download is completed (YES in step S102), the process is terminated.
- the host terminal 200H is temporarily downloaded and the data difference is updated between the portable information terminals 200-1 to 200-3 for each predetermined data amount. Even if it occurs, it is possible to resume the download smoothly. In addition, data can be shared between the portable information terminals 200-1 to 200-3.
- FIG. 9 is a flowchart for explaining the operation when a specific portable information terminal goes out of the tethering state during downloading of shared data in the present embodiment.
- the control unit 206 determines whether or not the tethering state is removed (step S110). If the tethering state is not removed (NO in step S110), the process ends. On the other hand, when the mobile terminal 200 is out of the tethering state (YES in step S110), in the portable information terminal 200, the control unit 206 performs “individual download”, “hold”, “discard” on the temporary data in the temporary data storage unit 204. The user is prompted to select a process (step S112).
- the control unit 206 determines whether or not “individual download” has been selected by the user (step S114). When “individual download” is selected (YES in step S114), the control unit 206 resumes downloading of the corresponding data from the state temporarily stored in the temporary data storage unit 204 in the terminal (step S114). S116). Thereafter, the process ends.
- control unit 206 determines whether or not “hold” is selected (step S118). If “hold” is selected (YES in step S118), the control unit 206 holds the data until the tethering state is entered again or another selection is made by the user (step S120). Thereafter, the process ends.
- control unit 206 determines whether or not “discard” is selected (step S122). If “discard” is selected (YES in step S122), the control unit 206 deletes the data temporarily stored in the temporary data storage unit 204 (step S124). Thereafter, the process ends.
- step S122 if “discard” is not selected (NO in step S122), the process returns to step S112 and the above-described processing is repeated.
- the base By rotating the host terminal 200H that communicates with a station, it is possible to realize efficient data communication while preventing the specific portable information terminal 200 from extremely draining the battery.
- the smaller of the total contracted speed and the maximum communication speed of the portable information terminal serving as the host terminal or the maximum data communication speed notified from the network is set as the communication speed.
- the upper limit data communication utilizing the line density to the maximum can be realized.
- the shared data is shared within the tethering communication, the load on the network 400 such as the base station 300 and the server 100 can be reduced.
- the data flow rate of the portable information terminal 200 in the group is set according to the line allowable amount assigned to each group.
- the distribution may be performed according to the reception quality, the allowable data communication speed, or the maximum data communication speed notified from the network 400.
- the mobile communication capacity is temporarily limited to the sum of the intra-group communication permission capacity. Downloading may be performed by expanding the allowable data communication speed of the information terminal 200.
- the server 100 side aggregates information of shared data held by the portable information terminals 200 in the group, and appropriately provides information in response to the inquiry of the portable information terminal 200. Good.
- the portable information terminal is applied to a mobile phone / smart phone, but a portable or stationary terminal device having a wireless LAN function and a tethering function, such as a digital camera or a game machine.
- Tablet PCs Personal Computers
- notebook PCs Portable Data Assistants
- PDAs Personal Data Assistants
- FIG. 10 is a configuration diagram of Supplementary Note 1. As shown in this figure, the invention described in Appendix 1 is The portable information terminal 500 has a tethering function that operates as a host terminal that connects to the base station using the second wireless communication and connects another portable information terminal to the base station using the second wireless communication.
- a group terminal connection status management unit 501 for managing connection states of a plurality of portable information terminals belonging to the same group connected by the tethering function; In the portable information terminal including the own terminal belonging to the same group, managed by the group terminal connection status management unit 501, at least the reception quality with the base station, the remaining battery capacity, the contract allowable data communication speed, Alternatively, the host terminal order determining unit 502 that determines the order of selecting the portable information terminal to be the host terminal based on either the maximum data communication speed notified from the network; A control unit 503 for controlling whether to operate as the host terminal or to communicate with the base station via the host terminal based on the selection order determined by the host terminal order determination unit 502 A portable information terminal 500 is characterized.
- Each of the portable information terminals includes the reception quality with the base station, the remaining battery capacity, the contract allowable data communication speed, or the maximum data communication speed at predetermined time intervals.
- Appendix 3 The mobile information terminal according to appendix 1 or 2, wherein the control unit comprises switching a mobile information terminal to be the host terminal based on the selection order determined by the host terminal order determining unit. is there.
- the control unit is at least when the remaining battery capacity of the portable information terminal that is the host terminal is equal to or less than a predetermined threshold, or when there is a portable information terminal with higher reception quality with the base station, or When there is a mobile information terminal with a faster contract allowable data communication speed, or when there is a mobile information terminal with a higher maximum data communication speed notified from the network, the selection order determined by the host terminal order determination unit 4.
- the portable information terminal according to any one of appendices 1 to 3, wherein the portable information terminal serving as the host terminal is switched based on the switching.
- a communication system comprising a server connected to the base station, wherein the server manages a connection status of the plurality of portable information terminals belonging to the same group connected by the tethering function. And at least the reception quality, the remaining battery capacity, and the contract allowable data communication with the base station in the portable information terminal including the own terminal belonging to the same group, managed by the group terminal connection status management unit
- the mobile information terminal to be the host terminal is selected based on either the speed or the maximum data communication speed notified from the network.
- the host terminal When there is no host terminal order determining unit that determines the order and the portable information terminal operating as the host terminal, the host terminal is determined to operate as the host terminal based on the selection order determined by the host terminal order determining unit.
- a first control unit that instructs the portable information terminal to operate as the host terminal, and the plurality of portable information terminals use the second wireless communication in accordance with an instruction from the server.
- a second control unit that operates as a host terminal connected to the base station.
- the second control unit in the host terminal when performing download on the premise of file sharing, at least the reception quality with the base station, the remaining battery capacity, Based on either the contract permissible data communication speed or the maximum data communication speed parameter, the mobile information terminal to be divided and downloaded is determined, and the determined mobile information terminal is transferred to the server via the base station.
- the first control unit in the server notifies the target file data of at least the received quality with the base station in the determined portable information terminal and the contract allowable data communication speed or the Dividing based on one of the maximum data communication speeds and dividing the divided file data into the determined portable information terminal Delivered to the portable information terminal, it said sequential expand the split data distributed from the server, to rebuild the data, it is a communication system according to Supplementary Note 6, wherein.
- the second control unit in the host terminal notifies the server that download is performed on the premise of file sharing, and notifies other portable information terminals that download of shared data is started, and the server
- the first control unit in divides the shared data into packet data of a predetermined size and transmits the packet data to the host terminal, and the second control unit in the host terminal transmits data of a predetermined data amount.
- (Appendix 9) Communication control by a portable information terminal having a tethering function that operates as a host terminal that connects to the base station using the second wireless communication and connects another portable information terminal to the base station using the second wireless communication
- the mobile information terminal serving as the host terminal is based on one of reception quality with the base station, remaining battery capacity, contract allowable data communication speed, or maximum data communication speed notified from the network.
- a group terminal connection status management function for managing a connection state of a plurality of portable information terminals belonging to the same group connected by the tethering function, and at least the base station in the portable information terminal including the own terminal belonging to the same group.
- the order of selecting the portable information terminal serving as the host terminal is determined on the basis of the reception quality, the remaining battery capacity, the contract allowable data communication speed, or the maximum data communication speed notified from the network. Based on the selection order determined by the host terminal order determination function and the host terminal order determination function. It works as a preparative terminal, a program for causing to execute a control function, which controls whether to perform communication with the base station via the host terminal.
Abstract
Description
図3は、本実施形態によるサーバ100の動作を説明するためのフローチャートである。基地局300に接続されるサーバ100は、同一グループに登録された携帯情報端末200-1~200-3から基地局300に報告される、現在位置を示す位置情報を集約する(ステップS10)。次に、サーバ100は、グループ端末接続状況管理部102によって、無線LANで接続可能なエリア内に携帯情報端末200が存在するか否かを判別する(ステップS12)。そして、無線LANで接続可能なエリアに携帯情報端末200が存在する場合には(ステップS12のYES)、サーバ100は、制御部104によって、該当携帯情報端末200にテザリングが可能である旨を通知する(ステップS14)。一方、無線LANで接続可能なエリアに携帯情報端末200が存在しない場合には(ステップS12のNO)、ステップS14をスキップする。
図8は、本実施形態による、サーバ100、及び携帯情報端末200によるファイル共有動作を説明するためのフローチャートである。まず、ホスト端末200Hにおいて、制御部206は、ユーザ指示や、他の携帯情報端末200からの要求などにより、グループ内においてファイル共有を前提としたダウンロードが選択されたか否かを判定する(ステップS90)。そして、ファイル共有を前提としたダウンロードが選択されない場合には(ステップS80のNO)、当該処理を終了する。
図9は、本実施形態において、共有データのダウンロード中に特定の携帯情報端末がテザリング状態から外れる場合の動作を説明するためのフローチャートである。
上記の実施形態の一部又は全部は、以下の付記のようにも記載されうるが、以下には限られない。
(付記1)
図10は、付記1の構成図である。この図に示すように、付記1記載の発明は、
第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末500であって、
前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理部501と、
前記グループ端末接続状況管理部501で管理される、同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定部502と、
前記ホスト端末順序決定部502によって決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御部503と
を備えることを特徴とする携帯情報端末500である。
前記各携帯情報端末における、前記基地局との間の受信品質と、前記残電池容量と、前記契約許容データ通信速度、もしくは前記最大データ通信速度とを、所定の時間間隔で前記各携帯情報端末から収集して随時更新する接続ステータス共有部を更に備える、ことを特徴とする付記1に記載の携帯情報端末である。
前記制御部は、前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末となる携帯情報端末を切り替える、を備えることを特徴とする付記1または2に記載の携帯情報端末である。
前記制御部は、少なくとも、前記ホスト端末である携帯情報端末の残電池容量が所定の閾値以下となった場合、または前記基地局との間の受信品質がより高い携帯情報端末がある場合、または契約許容データ通信速度がより速い携帯情報端末がある場合、またはネットワークより通知される最大データ通信速度がより速い携帯情報端末がある場合に、前記前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末となる携帯情報端末を切り替える、ことを特徴とする付記1ないし3のいずれかに記載の携帯情報端末である。
前記制御部は、前記ホスト端末がテザリング機能による接続から外れる場合、前記ホスト端末順序決定部によって決定された選択順序に基づいて、次のホスト端末となる携帯情報端末に切り替える、ことを特徴とする付記1から4のいずれかに記載の携帯情報端末である。
第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する複数の携帯情報端末と、前記基地局に接続されたサーバとからなる通信システムであって、前記サーバは、前記テザリング機能で接続される同一グループに属する前記複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理部と、前記グループ端末接続状況管理部で管理される、同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定部と、前記ホスト端末として動作している携帯情報端末がない場合に、前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末としてとして動作させる携帯情報端末に対して、前記ホスト端末として動作するように指示する第1の制御部と、を備え、前記複数の携帯情報端末は、前記サーバからの指示に従って、前記第2の無線通信を用いて前記基地局に接続するホスト端末として動作させる第2の制御部を備える、ことを特徴とする通信システムである。
前記ホスト端末における前記第2の制御部は、ファイル共有を前提としたダウンロードを行う場合、前記各携帯情報端末における、少なくとも、前記基地局との間の受信品質と、前記残電池容量と、前記契約許容データ通信速度もしくは前記最大データ通信速度とのいずれかのパラメータに基づいて、分割ダウンロードを行う携帯情報端末を決定するとともに、該決定した携帯情報端末を、前記基地局を介して前記サーバに通知し、前記サーバにおける前記第1の制御部は、対象のファイルデータを、前記決定された携帯情報端末における、少なくとも、前記基地局との間の受信品質と、前記契約許容データ通信速度もしくは前記最大データ通信速度とのいずれかに基づいて分割し、該分割したファイルデータを、前記決定された携帯情報端末に配信し、前記携帯情報端末は、前記サーバから配信される分割データを順次展開し、データの再構築を行う、ことを特徴とする付記6に記載の通信システムである。
前記ホスト端末における前記第2の制御部は、ファイル共有を前提としたダウンロードを行うことを前記サーバに通知するとともに、他の携帯情報端末に共有データのダウンロードを開始する旨を通知し、前記サーバにおける前記第1の制御部は、共有データを予め定められたサイズのパケットデータに分割し、前記ホスト端末に送信し、前記ホスト端末における前記第2の制御部は、所定のデータ量のデータをダウンロードする毎に、前記他の携帯情報端末同士でデータ差分を更新する、ことを特徴とする付記6に記載の通信システムである。
第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末による通信制御方法であって、前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理ステップと、前記同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定ステップと、前記ホスト端末順序決定ステップで決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御ステップとを含むことを特徴とする通信制御方法である。
第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末のコンピュータに、前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理機能、前記同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定機能、前記ホスト端末順序決定機能によって決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御機能、を実行させることを特徴とするプログラムである。
101 ホスト端末順序決定部
102 グループ端末接続状況管理部
103 接続ステータス共有部
104 制御部
200-1~200-3 携帯情報端末
200H ホスト端末
201、502 ホスト端末順序決定部
202、501 グループ端末接続状況管理部
203 ダウンロード状況記憶部
204 一時データ記憶部
205 接続ステータス共有部
206、503 制御部
300 基地局
400 ネットワーク
1000 通信システム
Claims (10)
- 第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末であって、
前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理部と、
前記グループ端末接続状況管理部で管理される、同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定部と、
前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御部と
を備えることを特徴とする携帯情報端末。 - 前記各携帯情報端末における、前記基地局との間の受信品質と、前記残電池容量と、前記契約許容データ通信速度、もしくは前記最大データ通信速度とを、所定の時間間隔で前記各携帯情報端末から収集して随時更新する接続ステータス共有部を更に備える、
ことを特徴とする請求項1に記載の携帯情報端末。 - 前記制御部は、前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末となる携帯情報端末を切り替える、
を備えることを特徴とする請求項1または2に記載の携帯情報端末。 - 前記制御部は、少なくとも、前記ホスト端末である携帯情報端末の残電池容量が所定の閾値以下となった場合、または前記基地局との間の受信品質がより高い携帯情報端末がある場合、または契約許容データ通信速度がより速い携帯情報端末がある場合、またはネットワークより通知される最大データ通信速度がより速い携帯情報端末がある場合に、前記前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末となる携帯情報端末を切り替える、
ことを特徴とする請求項1ないし3のいずれかに記載の携帯情報端末。 - 前記制御部は、前記ホスト端末がテザリング機能による接続から外れる場合、前記ホスト端末順序決定部によって決定された選択順序に基づいて、次のホスト端末となる携帯情報端末に切り替える、
ことを特徴とする請求項1から4のいずれかに記載の携帯情報端末。 - 第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する複数の携帯情報端末と、前記基地局に接続されたサーバとからなる通信システムであって、
前記サーバは、
前記テザリング機能で接続される同一グループに属する前記複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理部と、
前記グループ端末接続状況管理部で管理される、同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定部と、
前記ホスト端末として動作している携帯情報端末がない場合に、前記ホスト端末順序決定部によって決定された選択順序に基づいて、前記ホスト端末としてとして動作させる携帯情報端末に対して、前記ホスト端末として動作するように指示する第1の制御部と、
を備え、
前記複数の携帯情報端末は、
前記サーバからの指示に従って、前記第2の無線通信を用いて前記基地局に接続するホスト端末として動作させる第2の制御部を備える、
ことを特徴とする通信システム。 - 前記ホスト端末における前記第2の制御部は、ファイル共有を前提としたダウンロードを行う場合、前記各携帯情報端末における、少なくとも、前記基地局との間の受信品質と、前記残電池容量と、前記契約許容データ通信速度もしくは前記最大データ通信速度とのいずれかのパラメータに基づいて、分割ダウンロードを行う携帯情報端末を決定するとともに、該決定した携帯情報端末を、前記基地局を介して前記サーバに通知し、
前記サーバにおける前記第1の制御部は、対象のファイルデータを、前記決定された携帯情報端末における、少なくとも、前記基地局との間の受信品質と、前記契約許容データ通信速度もしくは前記最大データ通信速度とのいずれかに基づいて分割し、該分割したファイルデータを、前記決定された携帯情報端末に配信し、
前記携帯情報端末は、前記サーバから配信される分割データを順次展開し、データの再構築を行う、
ことを特徴とする請求項6に記載の通信システム。 - 前記ホスト端末における前記第2の制御部は、ファイル共有を前提としたダウンロードを行うことを前記サーバに通知するとともに、他の携帯情報端末に共有データのダウンロードを開始する旨を通知し、
前記サーバにおける前記第1の制御部は、共有データを予め定められたサイズのパケットデータに分割し、前記ホスト端末に送信し、
前記ホスト端末における前記第2の制御部は、所定のデータ量のデータをダウンロードする毎に、前記他の携帯情報端末同士でデータ差分を更新する、
ことを特徴とする請求項6に記載の通信システム。 - 第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末による通信制御方法であって、
前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理ステップと、
前記同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定ステップと、
前記ホスト端末順序決定ステップで決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御ステップと
を含むことを特徴とする通信制御方法。 - 第1の無線通信を用いて基地局に接続するとともに、第2の無線通信を用いて他の携帯情報端末を前記基地局に接続するホスト端末として動作するテザリング機能を有する携帯情報端末のコンピュータに、
前記テザリング機能で接続される同一グループに属する複数の携帯情報端末の接続状態を管理するグループ端末接続状況管理機能、
前記同一グループに属する自端末を含む携帯情報端末における、少なくとも、前記基地局との間の受信品質と、残電池容量と、契約許容データ通信速度、もしくはネットワークより通知される最大データ通信速度とのいずれかに基づいて、前記ホスト端末となる携帯情報端末を選択する順序を決定するホスト端末順序決定機能、
前記ホスト端末順序決定機能によって決定された選択順序に基づいて、前記ホスト端末としてとして動作するか、前記ホスト端末経由で前記基地局と通信を行うかを制御する制御機能、
を実行させることを特徴とするプログラム。
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EP14757604.5A EP2963975B1 (en) | 2013-02-26 | 2014-01-21 | Portable information terminal, communication control method, and program |
JP2015502732A JP6278215B2 (ja) | 2013-02-26 | 2014-01-21 | 携帯情報端末、通信システム、通信制御方法、及びプログラム |
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JP2017208697A (ja) * | 2016-05-18 | 2017-11-24 | 国立研究開発法人情報通信研究機構 | 省電力通信システム |
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EP2963975A1 (en) | 2016-01-06 |
JPWO2014132549A1 (ja) | 2017-02-02 |
EP2963975A4 (en) | 2016-11-02 |
CN105165064A (zh) | 2015-12-16 |
EP2963975B1 (en) | 2017-12-27 |
JP6278215B2 (ja) | 2018-02-14 |
US9820177B2 (en) | 2017-11-14 |
US20150358851A1 (en) | 2015-12-10 |
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