JP6595933B2 - Wireless device, control method, and program - Google Patents

Description

  The present invention relates to a radio apparatus, a control method, and a program.

  Patent Documents 1 and 2 describe technologies for switching wireless communication methods such as LTE (Long Term Evolution) and 3G based on wireless communication throughput information. That is, the wireless communication terminal described in Patent Literature 1 acquires communication throughput information of a wireless communication method by monitoring a packet, and controls switching of the wireless communication method based on the communication throughput information. The communication device described in Patent Document 2 measures the data throughput and switches the communication mode based on the throughput information.

JP 2014-27450 A JP 2013-191975 A

  The devices described in Patent Documents 1 and 2 periodically measure throughput and switch communication modes based on the throughput information. By the way, since it takes a certain amount of time to measure the throughput, the switching to the appropriate communication mode performed based on the throughput information is delayed by that amount of time. In addition, communication in an inappropriate connection mode, such as communication in a higher-speed mode than necessary, may consume more power than communication in an appropriate communication mode. For this reason, when switching to an appropriate communication mode after measuring the throughput, useless power may be consumed for the measurement time of the throughput. As described above, there are not a few delays in switching and wasteful power consumption in switching communication modes based on throughput.

  The objective of this invention is providing the radio | wireless apparatus, control method, and program which solve the said subject.

  The wireless device of the present invention acquires information on the position and date of its own device at a predetermined timing, and storage means for storing throughput information in predetermined position data and date and time data in association with the set of the position data and date and time data When the storage unit searches for a set of position data and date / time data including the position and date / time information, and there is the searched set, the throughput stored in association with the searched set Switching to a communication mode adapted to the storage means, and when there is no set searched in the storage means, the throughput is measured, and the measured throughput is stored in the storage means, each of which includes the position and date / time information. Control means for storing data and date / time data in association with each other is provided.

  The wireless device control method of the present invention includes a storing step of storing information on throughput in predetermined position data and date / time data in a storage unit in association with the set of the position data and date / time data, and a position of the wireless device at a predetermined timing. And the date and time information is retrieved by the storage means and the set of the position data and date and time data respectively including the position and date and time information is searched, and if there is the searched set, it is associated with the searched set Switching to a communication mode adapted to the stored throughput, and when there is no pair searched in the storage means, the throughput is measured, and the measured throughput is stored in the storage means with the position and date / time. And a control step of storing the data in association with a set of position data and date / time data each including the above information.

  According to another aspect of the present invention, there is provided a program for a wireless device that stores in a wireless device information on throughput in predetermined position data and date / time data in association with a set of the position data and date / time data and stores the information in a storage unit. When the information on the position and date of the apparatus is acquired, and the storage unit searches for a set of position data and date data including the position and date information, respectively, and there is the searched set, the searched set Is switched to a communication mode adapted to the throughput stored in association with, and when there is no set searched in the storage means, the throughput is measured, the measured throughput in the storage means, A control process is performed in which position data including position and date / time information is stored in association with a set of date / time data.

  According to the present invention, it is possible to reduce the switching delay and the frequency of wasteful power consumption in switching the communication mode based on the throughput.

It is a block diagram which shows the structural example of the radio | wireless apparatus which concerns on 1st Embodiment. It is a block diagram which shows the structural example of the mobile router which concerns on 2nd Embodiment. It is a flowchart which shows the operation example of the mobile router which concerns on 2nd Embodiment. It is a table | surface which shows the management example of the information of the position in the mobile router which concerns on 2nd Embodiment, a date, and a throughput. It is a table | surface which shows the correspondence example of the throughput and communication mode in the mobile router which concerns on 2nd Embodiment.

  Hereinafter, a radio apparatus, a control method, and a program according to embodiments of the present invention will be described. In addition, the direction of the arrow in a drawing shows an example and does not limit the direction of the signal between blocks.

  First, a first embodiment of the present invention will be described with reference to the drawings.

  In the present embodiment, a wireless device configured with minimum elements for reducing the switching delay and the frequency of wasteful power consumption in switching the communication mode based on the throughput will be described.

  FIG. 1 shows a configuration example of a wireless device according to the present embodiment. The wireless device 100 includes a storage unit 101 and a control unit 102.

  The storage unit 101 stores throughput information in predetermined position data and date / time data in association with a set of position data and date / time data.

  The control unit 102 acquires the position and date / time information of the wireless device 100, searches for a set of position data and date / time data including the position and date / time information, respectively, and stores throughput information associated with the set. Switching to a communication mode adapted to the throughput is performed according to whether or not there is. The control unit 102 stores the measured throughput information in association with a set of position data and date / time data including position and date / time information, respectively.

  Based on the above configuration example, an operation example of the wireless device 100 according to the present embodiment will be described.

  In the wireless device 100 activated by a predetermined operation by a user or the like, the storage unit 101 stores information on throughput in predetermined position data and date / time data in association with a set of the position data and date / time data. The control unit 102 acquires the position and date / time information of the wireless device 100 at a predetermined timing, and searches the storage unit 101 for a set of position data and date / time data including the position and date / time information. If there is the searched pair, the communication mode is switched to the communication mode adapted to the throughput stored in association with the searched pair. If the retrieved pair is not found in the storage unit 101, the control unit 102 measures the throughput, and the measured throughput is stored in the storage unit 101 as a set of position data and date / time data including the position and date / time information, respectively. Store in association with each other.

  As described above, the wireless device acquires the position and date / time of the wireless device at a timing that requires throughput information, and if the throughput information corresponding to the position / date / time pair is stored, the wireless device does not measure the throughput, The communication mode is switched based on the throughput information. Further, if the throughput information corresponding to the position / date / time pair is not stored, the wireless device measures the throughput and associates the throughput information with the position / date data pair including the position / date. Remember.

  In this way, it is possible to reduce the switching delay and the frequency of wasteful power consumption in switching the communication mode based on the throughput.

  Next, a second embodiment of the present invention will be described with reference to the drawings.

  In this embodiment, a mobile router that reduces the frequency of switching delay and wasteful power consumption when switching communication modes based on throughput will be described. In the present embodiment, a case where the present invention is applied to a mobile router will be described. However, the present invention is applicable to a wireless device that switches a wireless communication speed, including a smartphone, a mobile phone, and the like.

  FIG. 2 shows a configuration example of the mobile router according to the present embodiment. The mobile router 10 includes a control unit 11, a memory 12, a measurement unit 13, a GPS (Global Positioning System) sensor 14, a wireless WAN (Wide Area Network) communication unit 15, and a wireless LAN (Local Area Network) communication unit 16.

  The mobile router 10 is connected to the Internet via the base station 20 by the wireless WAN communication unit 15. The mobile router 10 is connected to a terminal 30 such as a PC (Personal Computer) or a smartphone by the wireless LAN communication unit 16. Note that there are LTE, 3G, and the like as wireless WAN communication methods.

  The control unit 11 performs communication mode switching, throughput, acquisition and retrieval of information on the position and date of the mobile router, control of information storage, and the like.

  The memory 12 stores information on throughput, position, and date / time.

  The measurement unit 13 measures throughput.

  Based on the above configuration example, an operation example of the mobile router 10 according to the present embodiment will be described with reference to FIGS. FIG. 3 shows a flowchart of an operation example of the mobile router.

  In the mobile router 10 activated by a predetermined operation by the user or the like, the control unit 11 acquires the position and date / time information of the mobile router 10 from the GPS sensor 14 at a predetermined timing (for example, a cycle) (S301). The control unit 11 searches the memory 12 for a set of position data and date / time data that includes the acquired position information and date / time information, respectively (S302).

  FIG. 4 shows an example of management of position data, date / time data, and throughput information stored in the memory 12. A set of position data and date / time data and a corresponding measured throughput are stored in association with each other. The position data is a range of positions where the throughput is estimated to be the same at a predetermined date and time, such as a place where the radio wave intensity from the base station is equivalent, a specific place in the basement, etc., and each position is xyz Expressed in coordinates (for example, latitude, longitude, altitude). The range of the position where the throughput is the same is estimated based on the distance to the nearest base station, the presence or absence of a line of sight, for example, using a map of the position of the base station. Date and time data is the same throughput at a given position, such as one of a combination of weekdays, holidays, daytime, nighttime, midnight, commuting time, lunch break time, specific time zone, etc. It is a range of the date and time that is estimated to be, and each date and time is represented by the attribute (weekday, holiday, etc.), hour and minute. The throughput is represented by a predetermined number of significant digits. Note that a set (a plurality) of position data and date / time data having the same throughput with a predetermined number of significant digits (hereinafter simply referred to as “same”) are combined into one set. Further, depending on the time zone, the amount of other wireless communication around the mobile router 10 varies, so the throughput also varies. Due to the management described above, position data and date / time data (with regard to date / time, weekdays / holidays, time zones, etc.) that are estimated to have the same throughput are stored in advance according to the user's behavior pattern, for example. In addition, the measured throughput may be different from the current value after a considerable period of time has elapsed, so when a predetermined period of time has elapsed from the time of measurement, a new measurement is performed to update the throughput. You may do it. The date / time search key in the search of the above-described processing of S302 normally does not include the year / month / day, but instead may include a key for distinguishing between weekdays and holidays.

  If there is a corresponding group in the process of S302 (Yes in S302), the control unit 11 determines the communication mode of the wireless WAN communication unit 15 based on the throughput information associated with the group in the memory 12. Switching to one that consumes more power than the throughput (S303). FIG. 5 shows an example of the correspondence relationship between the throughput and the communication mode. If there is no corresponding group (No in S302), the control unit 11 causes the measurement unit 13 to measure the throughput of the WAN side network (S304). Based on the measured throughput information, the control unit 11 switches the communication mode of the wireless WAN communication unit 15 to one with a communication speed higher than the throughput and less power consumption (S305). In addition, the control unit 11 stores the measured throughput information in the memory 12 in association with a set of position data and date / time data including the position and date / time information at the time of measurement (acquired in the process of S301) (S306). ). If the same throughput as the measured throughput is stored in the memory 12, a set of position data and date / time data each including the position and date / time at the time of measurement is associated with the throughput. Add to data set. Further, the measurement of the above throughput may be performed separately from the above processing, for example, by performing in advance. In that case, the throughput may include not only measured but also estimated. It should be noted that it is sufficient that the above-described measurement and estimation of the throughput is performed for a representative position and date / time of each set of position data and date / time data.

  Note that the predetermined timing at which the control unit 11 acquires the position and date / time information in the above-described processing of S301 is periodic, similar to the timing at which the devices described in Patent Documents 1 and 2 measure throughput. Also good.

  In the process of S301, the information on the position acquired by the control unit 11 is stored, and it is determined whether or not the latest position has moved a predetermined distance or more. If there is a corresponding movement, the process of S302 is performed. You may make it perform. Further, as the processing of S301, the control unit 11 detects the base station connected to the mobile router 10 at a predetermined timing, and when the base station is switched, the control unit 11 moves from the GPS sensor 14 to the mobile station. Information on the position and date / time of the router 10 may be acquired. Furthermore, these operations may be combined as the processing of S301. Throughput correlates with the distance between the mobile router and the base station, and when the mobile router 10 moves greatly, there is a possibility that the throughput changes greatly. Further, since the communication mode supported by the base station differs depending on the type of the base station, the throughput may change greatly when the base station is switched. For this reason, it is possible to measure the throughput and search in the memory 12 only when there is a possibility that the slow output may change greatly.

  As described above, the mobile router acquires the position and date / time of the mobile router at a timing requiring throughput information, and if the throughput information corresponding to the position / date / time pair is stored, the throughput is not measured, The communication mode is switched based on the throughput information. Further, if the throughput information corresponding to the position and date / time pair is not stored, the mobile router measures the throughput and associates the throughput information with the position / date / time data pair including the position and date. Remember.

  In this way, it is possible to reduce the switching delay and the frequency of wasteful power consumption in switching the communication mode based on the throughput.

  In the above embodiment, a program for executing the operation process may be stored and distributed in a computer-readable recording medium such as a CD-ROM or MO. By installing the program in the wireless device, the wireless device may execute the operation process. CD-ROM is an abbreviation for Compact Disk Read-Only Memory, and MO is an abbreviation for Magneto-Optical disk.

  The present invention is applicable to a radio apparatus, a control method, and a program.

DESCRIPTION OF SYMBOLS 10 Mobile router 11 Control part 12 Memory 13 Measurement part 14 GPS sensor 15 Wireless WAN communication part 16 Wireless LAN communication part 20 Base station 30 Terminal 100 Radio | wireless apparatus 101 Memory | storage part 102 Control part

Claims (9)

Storage means for storing information on throughput in predetermined position data and date / time data in association with a set of the position data and date / time data;
When acquiring the position and date information of the own device at a predetermined timing, searching for a set of position data and date data including the position and date information respectively in the storage means, and when there is the searched set, Switching to a communication mode adapted to the throughput stored in association with the searched pair, and when there is no searched pair in the storage means, the throughput is measured, and the measured value is stored in the storage means A radio apparatus comprising: control means for storing throughput in association with a set of position data and date data each including the position and date information. The radio apparatus according to claim 1, wherein the predetermined timing is when the own apparatus has moved more than a predetermined distance or when a base station to which the own apparatus is connected is switched. The wireless device according to claim 1 or 2, wherein the throughput information in the predetermined position data and date / time data is updated when a predetermined time elapses from the time of measurement or estimation. A storage step of storing information on throughput in predetermined position data and date / time data in a storage unit in association with the set of the position data and date / time data;
When acquiring the position and date information of the wireless device at a predetermined timing, searching the storage means for a set of position data and date data including the position and date information, respectively, if there is the searched set, Switching to a communication mode adapted to the throughput stored in association with the searched pair, and when there is no searched pair in the storage means, the throughput is measured, and the measured value is stored in the storage means A control method for a wireless device, comprising: a control step of storing throughput in association with a set of position data and date / time data each including the position and date / time information. 5. The wireless device according to claim 4, wherein the predetermined timing is when the wireless device moves more than a predetermined distance or when a base station to which the wireless device is connected is switched. Control method. 6. The method of controlling a wireless device according to claim 4, wherein the throughput information in the predetermined position data and date / time data is updated when a predetermined time elapses from the time of measurement or estimation. Wireless device
A storage process for storing information on throughput in predetermined position data and date / time data in a storage unit in association with the set of the position data and date / time data;
When acquiring the position and date information of the wireless device at a predetermined timing, searching for a set of position data and date data including the position and date information respectively in the storage means, if there is the searched set, Switching to a communication mode adapted to the throughput stored in association with the searched pair, and when there is no searched pair in the storage means, the throughput is measured, and the measured value is stored in the storage means A program for a wireless device, which executes a control process for storing throughput in association with a set of position data and date data each including the position and date information. The wireless device according to claim 7, wherein the predetermined timing is when the wireless device moves more than a predetermined distance or when a base station connected to the wireless device is switched. program. 9. The wireless device program according to claim 7, wherein the throughput information in the predetermined position data and date / time data is updated when a predetermined time elapses from the time of measurement or estimation.

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