WO2013164895A1 - Wireless base station - Google Patents

Wireless base station Download PDF

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Publication number
WO2013164895A1
WO2013164895A1 PCT/JP2012/061616 JP2012061616W WO2013164895A1 WO 2013164895 A1 WO2013164895 A1 WO 2013164895A1 JP 2012061616 W JP2012061616 W JP 2012061616W WO 2013164895 A1 WO2013164895 A1 WO 2013164895A1
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WO
WIPO (PCT)
Prior art keywords
transmission power
upper limit
wireless terminal
limit value
value
Prior art date
Application number
PCT/JP2012/061616
Other languages
French (fr)
Japanese (ja)
Inventor
和浩 山本
Original Assignee
Yamamoto Kazuhiro
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamamoto Kazuhiro filed Critical Yamamoto Kazuhiro
Priority to JP2014513332A priority Critical patent/JPWO2013164895A1/en
Priority to PCT/JP2012/061616 priority patent/WO2013164895A1/en
Publication of WO2013164895A1 publication Critical patent/WO2013164895A1/en

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Classifications

    • 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
    • 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
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • 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
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • 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
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • 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
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • 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 communication system that controls communication performed by a wireless terminal via a communication network, and more particularly, to a transmission power control technique for a wireless terminal or a communication system.
  • wireless terminals in mobile communication systems such as mobile phones using batteries as power sources and mobile PCs with built-in communication devices have become widespread, and various power-saving technologies have been developed. Technology is being developed to make the best use of power consumption.
  • the transmission power is determined based on the signal strength and quality of a received signal received from a radio base station (hereinafter simply referred to as a radio base station) in a mobile communication system. .
  • Patent Document 1 is a technique for measuring transmission signal strength by measuring the strength of a received signal in wireless communication.
  • conventional wireless terminals are intended to control transmission power by users (including users, guardians, managers, manufacturers, sellers, telecommunications carriers and others). Therefore, when the power is turned on, the transmission power cannot be reduced by a user or the like in order to reduce power consumption. For this reason, in an environment where radio waves from the radio base station are difficult to reach, the radio terminal transmits at the maximum output, which is one of the causes of consuming power against the expectation of users and the like.
  • An object of the present invention is to provide a communication system capable of suppressing power consumption by suppressing transmission power with the intention of a user or the like.
  • the radio wave radiated from the radio base station with a predetermined transmission power is received by the radio terminal after receiving a propagation loss in the route up to reception.
  • radio waves radiated from the wireless terminal are received by the wireless base station after receiving the same loss amount as the propagation loss on the route up to reception.
  • the transmission loss is the same between the transmission side and the reception side, so communication is symmetrical.
  • the maximum transmission power of a radio base station and a radio terminal is different. Even when the transmission output of the radio base station and the radio terminal is different, the system design is made so that “symmetry of communication” is maintained in consideration of the antenna characteristics and the noise figure of the receiver.
  • An object of the present invention is to make it possible to suppress transmission power with the intention of a user or the like while ensuring “symmetry of communication”.
  • the communication system of Invention 1 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and for each wireless terminal, an upper limit value of transmission power is set.
  • a transmission power upper limit setting means for setting a value lower than the maximum upper limit value of the wireless terminal, and an upper limit value of the transmission power of the wireless terminal are set by the transmission power upper limit setting means for the wireless terminal.
  • the communication includes communication (outgoing) performed by a transmitting-side wireless terminal or communication (receiving) performed by a receiving-side wireless terminal.
  • communication outgoing
  • receiving communication
  • communication includes telephone calls, data communication, and other communications.
  • communication at the physical layer level or communication at the logical layer level is included.
  • the maximum upper limit value of the transmission power is the maximum value of the transmission power that can be realized by the performance of the wireless terminal, or is necessary when the communication quality with the communication partner (for example, the communication system) is the minimum.
  • the maximum transmission power according to the standard.
  • the wireless terminal control means may have any configuration as long as it is configured to control the wireless terminal, for example, a configuration for controlling the transmission power of the wireless terminal, a transmission power of the wireless terminal Includes a configuration for controlling, setting or fixing the upper limit value, a configuration for controlling the reception performance of the wireless terminal, or a configuration for controlling, setting or fixing the upper limit value of the reception performance of the wireless terminal.
  • a configuration for controlling the transmission power of the wireless terminal includes a configuration for controlling, setting or fixing the upper limit value, a configuration for controlling the reception performance of the wireless terminal, or a configuration for controlling, setting or fixing the upper limit value of the reception performance of the wireless terminal.
  • the present system may be realized as a single device (for example, a radio base station), a terminal, or other devices, or a plurality of devices (for example, an exchange and a radio base station), a terminal, or other devices.
  • each component may belong to any one of a plurality of devices and the like as long as they are connected so as to communicate with each other.
  • the communication system of Invention 2 further includes transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal in the communication system of Invention 1,
  • the transmission power upper limit setting means sets the value acquired by the transmission power upper limit acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • the transmission power upper limit value acquisition unit may have any configuration as long as the upper limit value of the transmission power is acquired.
  • the upper limit value of the transmission power is input from an input device or the like.
  • the upper limit value of transmission power may be acquired or received from an external terminal or the like, or the upper limit value of transmission power may be read from a storage device or a storage medium. May be.
  • acquisition includes at least input, acquisition, reception and reading.
  • the concept of acquisition is the same.
  • a transmission power upper limit for obtaining a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal in the communication system of Invention 1, includes a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal.
  • the wireless terminal related to the wireless terminal includes, for example, a wireless terminal that is a communication partner or a wireless terminal that is owned by family members, friends, employees, and other related parties.
  • a wireless terminal that is a communication partner
  • a wireless terminal that is owned by family members, friends, employees, and other related parties.
  • the communication system of Invention 4 is a communication system that is connected to a plurality of wireless terminals so as to be able to perform wireless communication.
  • the maximum transmission power of the wireless terminal Transmission power upper limit value storage means for storing a transmission power upper limit value table in which a value lower than the upper limit value is stored, and an upper limit value of the transmission power of the wireless terminal is set in the transmission power upper limit value table for the wireless terminal
  • Wireless terminal control means for controlling the wireless terminal so that the obtained value is obtained.
  • the communication system of Invention 5 is the communication system of Invention 4, in which the transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal;
  • a transmission power upper limit value setting unit configured to set, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • the communication system of Invention 6 is the communication system of Invention 4, wherein the upper limit of transmission power for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal associated with the wireless terminal.
  • a value acquisition means and a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal is set in the transmission power upper limit value table as an upper limit value of the transmission power of the wireless terminal.
  • Power upper limit setting means are provided.
  • the communication system of Invention 7 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication.
  • the maximum value of the wireless terminal is set as a maximum transmission power.
  • Transmission power upper limit value acquisition that connects to a management device that includes a transmission power upper limit value setting unit that sets a value lower than the upper limit value in a communicable manner and acquires the value set by the transmission power upper limit value setting unit from the management device
  • the communication system of Invention 8 is the communication system of Invention 7, wherein the management device obtains a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal.
  • the transmission power upper limit value setting means sets the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • Second transmission power upper limit value acquisition means for acquiring wherein the transmission power upper limit setting means obtains the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal associated with the wireless terminal. Set as the upper limit of the transmission power of the terminal.
  • the communication system of Invention 10 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication.
  • the maximum transmission power of the wireless terminal is A communication device is communicably connected to a management device that includes a transmission power upper limit value storage unit that stores a transmission power upper value table in which a value lower than the upper limit value is set, and the value set in the transmission power upper value table is transmitted from the management device.
  • the wireless terminal is controlled so that the transmission power upper limit acquisition means to be acquired and the transmission power upper limit value of the wireless terminal are the values acquired by the transmission power upper limit acquisition means for the wireless terminal.
  • Wireless terminal control means is controlled so that the transmission power upper limit acquisition means to be acquired and the transmission power upper limit value of the wireless terminal are the values acquired by the transmission power upper limit acquisition means for the wireless terminal.
  • the communication system of Invention 11 is the communication system of Invention 10, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal.
  • the transmission power upper limit value that sets the upper limit value acquisition means and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal. Setting means is provided.
  • the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • the second transmission power upper limit value acquisition means to acquire, and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal Transmission power upper limit value setting means for setting in the transmission power upper limit value table.
  • the communication system of Invention 13 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and a value lower than the maximum upper limit value of the wireless terminal Transmission power upper limit value acquisition means acquired from a wireless terminal related thereto, and upper limit value of transmission power of the wireless terminal is determined from the wireless terminal or a wireless terminal related thereto.
  • Wireless terminal control means for controlling the wireless terminal so as to obtain the value obtained in step (1).
  • the communication system of Invention 14 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and for each wireless terminal, an upper limit value of transmission power to the wireless terminal is set. Transmission power upper limit increasing means for increasing the reference upper limit is provided.
  • the communication system of Invention 15 further includes reception performance increasing means for increasing reception performance in accordance with the upper limit value of transmission power increased by the transmission power upper limit value increasing means in the communication system of Invention 14. .
  • the communication system of Invention 16 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, an antenna having a gain higher than a reference gain, and a target wireless terminal.
  • the communication system of Invention 17 further includes reception performance increasing means for increasing reception performance in accordance with the upper limit value of transmission power increased by the antenna control means in the communication system of Invention 16.
  • the communication system of Invention 18 is a communication system connected to a plurality of wireless terminals so as to be capable of wireless communication, wherein the transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and the transmission power Receiving performance reducing means for reducing the receiving performance according to the upper limit value of transmission power reduced by the upper limit value reducing means.
  • the communication system of Invention 19 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and is reduced by reception performance reducing means for reducing reception performance and the reception performance reducing means.
  • Transmission power upper limit lowering means for lowering the upper limit of transmission power according to the received performance.
  • the communication system of Invention 20 is a communication system connected to a plurality of wireless terminals so as to be capable of wireless communication, wherein the transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and the transmission power Reception status notifying means for notifying the radio terminal of the reception status when the reception performance is reduced or reduced according to the upper limit value of the transmission power reduced by the upper limit value reduction means.
  • the communication system of Invention 21 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and the reception status when the reception performance is reduced or reduced is described as the wireless communication system.
  • the reception performance reducing means reduces the reception performance of the wireless terminal for each wireless terminal.
  • the communication system of Invention 23 is the communication system of any one of Inventions 18 to 22, wherein the transmission power upper limit lowering means transmits transmission power to the wireless terminal for each wireless terminal. Reduce the upper limit of.
  • the communication system of Invention 24 establishes communication with the wireless terminal in wireless transmission / reception stronger than a pre-registered radio wave intensity according to the reception performance in the communication system of any one of Inventions 18 to 23. .
  • the communication system of Invention 25 is the communication system of any one of Inventions 15, 17 to 24, wherein the reception performance is reception sensitivity.
  • the reception performance is a reference value when it is determined that communication is established.
  • the reception performance is an allowable value of an error rate of received data.
  • the communication system of Invention 28 is a communication system for connecting to a plurality of wireless terminals so as to be capable of wireless communication, and a transmission power value acquisition means for acquiring a value of transmission power of the wireless terminals, A communication prohibiting unit that prohibits communication with the wireless terminal when the transmission power value acquired by the transmission power value acquiring unit is greater than or equal to a predetermined value.
  • the communication system of Invention 29 is the communication power of Invention 28, in which the transmission power for setting a lower value than the maximum upper limit value of the wireless terminal as the upper limit value of the transmission power for each wireless terminal.
  • the communication system of Invention 30 further comprises transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal in the communication system of Invention 29,
  • the transmission power upper limit setting means sets the value acquired by the transmission power upper limit acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • the communication system of Invention 31 is the communication system of Invention 29, wherein a transmission power upper limit for obtaining a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • the transmission power upper limit value setting means includes a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal. Set.
  • the communication system of Invention 32 is the communication power of Invention 28, in which the transmission power in which the upper limit value of the transmission power is set lower than the maximum upper limit value of each wireless terminal is set.
  • Transmission power upper limit value storage means for storing an upper limit value table, wherein the communication prohibition means is configured such that the transmission power value acquired by the transmission power value acquisition means for the wireless terminal is the transmission power upper limit value for the wireless terminal. If the value is greater than or equal to the value set in the value table, communication with the wireless terminal is prohibited.
  • the communication system of Invention 33 is the communication system of Invention 32, wherein a transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal, A transmission power upper limit value setting unit configured to set, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • a transmission power upper limit for obtaining a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal in the communication system of Invention 32, a transmission power upper limit for obtaining a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • a value acquisition means and a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal is set in the transmission power upper limit value table as an upper limit value of the transmission power of the wireless terminal.
  • Power upper limit setting means is set in the transmission power upper limit value table as an upper limit value of the transmission power of the wireless terminal.
  • the communication power of Invention 35 is a transmission power that sets a lower value than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power for each wireless terminal.
  • An upper limit value setting unit is communicably connected to a management device, and includes a transmission power upper limit value acquisition unit that acquires a value set by the transmission power upper limit value setting unit from the management device, and the communication prohibition unit includes the communication prohibition unit, If the value of the transmission power acquired by the transmission power value acquisition unit for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition unit for the wireless terminal, the wireless terminal Prohibit communication with the machine.
  • the communication system of Invention 36 is the communication system of Invention 35, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal.
  • the transmission power upper limit value setting means sets the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
  • the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • Second transmission power upper limit value acquisition means for acquiring wherein the transmission power upper limit setting means obtains the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal associated with the wireless terminal. Set as the upper limit of the transmission power of the terminal.
  • the communication power of Invention 38 is a transmission power in which a value lower than the maximum upper limit value of the wireless terminal is set as the upper limit value of the transmission power for each wireless terminal.
  • a transmission power upper limit value acquisition unit configured to communicate with a management device including a transmission power upper limit value storage unit that stores an upper limit value table, and to acquire a value set in the transmission power upper limit value table from the management device;
  • the communication prohibiting means is when the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. If this happens, communication with the wireless terminal is prohibited.
  • the communication system of Invention 39 is the communication system of Invention 38, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal.
  • the transmission power upper limit value that sets the upper limit value acquisition means and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal. Setting means is provided.
  • the communication system of Invention 40 is the communication system of Invention 38, in which the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal.
  • the second transmission power upper limit value acquisition means to acquire, and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal Transmission power upper limit value setting means for setting in the transmission power upper limit value table.
  • the communication system of Invention 41 obtains a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal or a wireless terminal related thereto.
  • the wireless transceiver according to Invention 42 includes transmission power value acquisition means for acquiring a transmission power value of a communication partner, and transmission power acquired by the transmission power value acquisition means.
  • Communication prohibiting means for prohibiting communication with the other party of communication when the value of is greater than or equal to a predetermined value.
  • the power consumption can be suppressed by suppressing the upper limit value of the transmission power of the wireless terminal with the intention of the user or the like. . Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the wireless terminal decreases its own transmission power, so that the transmission power of the wireless terminal is intended by the user or the like. Power consumption can be suppressed by suppressing the upper limit value. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • power consumption can be suppressed by suppressing the upper limit of the transmission power of this communication system with a user's intention. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the wireless terminal cannot communicate with the communication system when it communicates with a transmission power that exceeds or exceeds a predetermined value.
  • the power consumption can be suppressed by intentionally suppressing the transmission power of the wireless terminal. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the communication partner cannot communicate with the wireless transceiver when communicating at a transmission power that exceeds or exceeds a predetermined value.
  • the power consumption can be suppressed by suppressing the transmission power of the communication counterparty with the intention of. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • FIG. 1 is a diagram showing a configuration of a communication system 100.
  • FIG. It is a figure for demonstrating the outline of W-CDMA.
  • FIG. 3 is a diagram illustrating a data structure of communication control information 20.
  • FIG. It is a sequence diagram which shows the download process of the communication control information 20.
  • It is a flowchart which shows an adaptive transmission power control process.
  • It is a figure which shows the basic composition of the wireless base station 3 which concerns on 2nd Embodiment.
  • (A) to (c) are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal, and (d) to (f) reduce only the upper limit value of transmission power.
  • FIG. 6 is a diagram illustrating transmission power characteristics, reception sensitivity characteristics, and reception intensity characteristics of a conventional wireless terminal in a case where (A) to (c) are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional radio terminal, and (d) to (f) are radio base stations according to the present embodiment.
  • 3 is a diagram illustrating a transmission power characteristic, a reception sensitivity characteristic, and a reception intensity characteristic of FIG. It is a flowchart which shows a radio
  • FIG. 1 is a diagram illustrating a configuration of the communication system 100.
  • the communication system 100 provides a communication service to a user of a wireless terminal 2 such as a mobile phone, and is a wireless base station (BTS: Base) that is wirelessly connected to the wireless terminal 2.
  • BTS Base
  • Transceiver Station 3
  • RNC radio network controller
  • a subscriber exchange 5 connected to the radio network controller 4
  • a relay exchange 6 And an operation center 7 connected to the subscriber exchange 5 via the network.
  • the communication system 100 employs a zone method and has a large number of wireless zones arranged in a service area, as in the cellular system (PDC: Personal Digital Cellular telecommunication system) which is a mobile communication system in Japan.
  • Communication control in each radio zone is performed by the radio base station 3.
  • the wireless terminal 2 belonging to the wireless zone A1 communicates with another communication terminal
  • the wireless terminal 2 is connected to the subscriber switch 5 via the wireless base station 3 that performs communication control of the wireless zone A1, and the subscriber switch 5 Connected to relay exchange 6.
  • the wireless terminal 2 is movable, when it moves out of the zone from the wireless zone A1, it belongs to the adjacent wireless zone A2.
  • the wireless terminal 2 When the wireless terminal 2 belonging to the wireless zone A2 communicates with another communication terminal, the wireless terminal 2 is connected to the subscriber switch 5 via the wireless base station 3 that performs communication control of the wireless zone A2, and is relayed from the subscriber switch 5 Connected to the exchange 6.
  • the wireless terminal 2 can communicate with other communication terminals by being connected to the wireless base station 3 that performs communication control of the wireless zone to which the wireless terminal 2 belongs via the wireless line.
  • a logical channel including an information channel and a control channel is prepared in order to control communication and a wireless line.
  • the information channel is for the wireless terminal 2 to transmit and receive audio signals and data signals.
  • the information channel is assigned to a specific wireless terminal 2, the information channel is occupied by the wireless terminal 2 until communication is completed.
  • the control channel is a channel for transferring a control signal necessary for connection control, and is a downlink only one-way channel for transferring information commonly notified to all the wireless terminals 2 in the wireless zone.
  • BCCH Broadcasting Control CHannel
  • CCCH Common Control CHannel
  • the wireless terminal 2 belongs to the wireless zone A1, for example, by making a location registration request to the wireless base station 3 using the common control channel.
  • the wireless terminal 2 transmits a call signal including the telephone number information of the communication partner to the wireless base station 3 using the common control channel.
  • the radio base station 3 receives the call signal, the call signal is transmitted to the relay switch 6 via the subscriber switch 5.
  • the relay switch 6 transmits an incoming call signal to the communication partner via the other subscriber switch 5, and sets a line between the communication partner and the wireless terminal 2.
  • the wireless base station 3 assigns an empty channel of information channel in the wireless zone A1 to the wireless terminal 2. Thereby, the wireless terminal 2 can communicate with the communication partner.
  • W-CDMA Wideband Code Division Multiple Access
  • W-CDMA employs adaptive transmission power control.
  • Adaptive transmission power control is based on signal power to interference power ratio (SIR).
  • SIR signal power to interference power ratio
  • the SIR is measured after RAKE combining the signal despread at the radio base station 3, and if the measured value is larger than the target value, a command for reducing the transmission power is transmitted to the radio terminal 2. .
  • a command for increasing the transmission power is transmitted.
  • the wireless terminal 2 controls transmission power according to the command. By realizing this operation at a high speed of once every 0.625 [ms], the fluctuation of the reception level caused by fading can be eliminated by the power control of the radio base station 3, and the transmission power of the radio terminal 2 is also reduced. Can be minimized.
  • a plurality of cells are concentrically set in a radio zone covered by one radio base station 3.
  • a concentric cell S ⁇ b> 1 is set in an area closest to the radio base station 3 in the radio zone
  • a concentric cell S ⁇ b> 2 is set in an area next to the radio base station 3.
  • a concentric cell S3 is set.
  • the transmission power of the three wireless terminals 2a1, 2a2, 2a3 belonging to the cell S1 is controlled so that the measured value of SIR of each wireless terminal 2a1, 2a2, 2a3 becomes the target value SIR1.
  • the transmission power of the three wireless terminals 2b1, 2b2, 2b3 belonging to the cell S2 is controlled so that the measured value of SIR of each wireless terminal 2b1, 2b2, 2b3 becomes the target value SIR2.
  • the transmission power of the three wireless terminals 2c1, 2c2, 2c3 belonging to the cell S3 is controlled so that the measured value of SIR of each wireless terminal 2c1, 2c2, 2c3 becomes the target value SIR3.
  • the relationship between the target values is SIR1> SIR2> SIR3.
  • control is performed to lower the upper limit value of the transmission power of the wireless terminal 2, but in W-CDMA, for example, the upper limit value of the transmission power of the wireless terminal 2 belonging to the cell S1 is lowered.
  • the wireless terminal 2 is controlled as belonging to the cell S1. If the target value SIR2 is not reached but the target value SIR2 is reached, the wireless terminal 2 is controlled as belonging to the cell S2. If the target value SIR2 is not reached but the target value SIR3 is reached, the wireless terminal 2 is controlled as belonging to the cell S3.
  • the wireless network control device 4 monitors a wireless line between the wireless terminal 2 and the wireless base station 3 and performs wireless control such as allocating a wireless channel with the wireless terminal 2.
  • the wireless network control device 4 is connected to the voice switch 51 and the packet switch 52.
  • the wireless network control device 4 transmits the call signal received from the wireless terminal 2 to the voice switch 51 and transmits the data signal received from the wireless terminal 2 to the packet switch 52.
  • the subscriber switch 5 includes a voice switch 51 and a packet switch (LS / SGSN: Serving GPRS Support Node) 52.
  • LS / SGSN Serving GPRS Support Node
  • the voice switch 51 relays the call signal received from the radio network controller 4 to the radio base station 3 to which the destination radio terminal 2 belongs, and also receives the call signal received from the operation center 7 via the relay voice switch 61. Is relayed to the wireless network control device 4.
  • the packet switch 52 relays the data signal received from the wireless network control device 4 to the wireless base station 3 to which the destination wireless terminal 2 belongs, and receives the data signal received from the operation center 7 via the relay packet switch 62. Is relayed to the wireless network control device 4.
  • the subscriber exchange 5 is connected to a visitor location register (VLR) 53.
  • VLR visitor location register
  • the visitor location register 53 is a database that stores location registration information of the wireless terminal 2 for managing the wireless terminal 2 in the area where the subscriber exchange 5 has jurisdiction.
  • the visitor location register 53 may be provided outside or inside the subscriber exchange 5 as long as the subscriber exchange 5 is accessible.
  • the subscriber exchange 5 downloads location registration information of the wireless terminal 2 from a home location register (HLR) 71 and visitor location register 53.
  • the location registration processing is performed based on the location registration information.
  • the relay exchange 6 is connected to a subscriber exchange 5, a gateway exchange 9, and a gateway (GW) 10.
  • the gateway exchange 9 is connected to another gateway exchange 13 via a POI (Point Of Interface) 12, and the gateway 10 is connected to the Internet.
  • POI Point Of Interface
  • the relay switch 6 includes a relay voice switch 61 and a relay packet switch (GS / GGSN: Gateway GPRS Support Node) 62.
  • GS / GGSN Gateway GPRS Support Node
  • the relay voice switch 61 relays the call signal received from the voice switch 51 to the operation center 7 and relays the call signal received from the operation center 7 to the voice switch 51.
  • the relay packet switch 62 relays the data signal received from the packet switch 52 to the operation center 7 and relays the data signal received from the operation center 7 to the packet switch 52.
  • the operation center 7 has a server function for providing communication services, a use restriction service for restricting the use of communication, and various services contracted by each wireless terminal 2 to all the wireless terminals 2.
  • the operation center 7 is connected to the home location register 71.
  • the home location register 71 includes user information (telephone number, IP address, authentication information, etc.), contract service information, location registration information (location registration area) of all wireless terminals 2 in the area where the operation center 7 has jurisdiction.
  • the database stores communication control information of the wireless terminal 2.
  • the home location register 71 can be provided outside or inside the operation center 7 as long as the operation center 7 is accessible.
  • FIG. 4 is a diagram illustrating a data structure of the communication control information 20.
  • the home location register 71 stores communication control information 20 of all the wireless terminals 2 in the area where the operation center 7 has jurisdiction.
  • the communication control information 20 one record is registered for each wireless terminal 2.
  • Each record includes a field in which the telephone number of the wireless terminal 2 is registered, a field in which the IP address of the wireless terminal 2 is registered, and a field in which the upper limit value of the transmission power of the wireless terminal 2 is registered.
  • the upper limit value of the transmission power of the wireless terminal 2 a value (for example, 0.1 [W]) lower than the maximum transmission power (for example, 1 [W]) of the wireless terminal 2 can be set.
  • the maximum transmission power is a maximum value of transmission power that can be realized by the wireless terminal 2 in terms of performance, or a maximum transmission power based on a standard required when communication quality with a wireless base station is minimum.
  • the upper limit value of transmission power is set by the setting process (transmission power upper limit setting means) of the operation center 7.
  • the upper limit value of the transmission power is set by, for example, a manufacturer, a seller, or a telecommunications carrier when the wireless terminal 2 is shipped, or set by a parent when a parent who is a guardian gives the wireless terminal 2 to a child. Or the user may set.
  • the operation center 7 receives a request from these persons and sets an upper limit value of transmission power of the target wireless terminal 2.
  • FIG. 5 is a sequence diagram showing a download process of the communication control information 20.
  • the download process of the communication control information 20 is a process executed when the subscriber exchange 5 receives a location registration request from the wireless terminal 2.
  • the wireless network control device 4 and the relay exchange 6 are omitted for the sake of simplicity.
  • step S100 when the subscriber exchange 5 receives a location registration request from the wireless terminal 2 via the wireless base station 3 and the wireless network control device 4 (step S100), the subscriber exchange 5 makes a request with the operation center 7. Authentication processing of the original wireless terminal 2 is performed (step S102). When the authentication process is completed, the subscriber exchange 5 transmits a location registration request to the operation center 7 (step S104).
  • the operation center 7 reads the communication control information 20 corresponding to the wireless terminal 2 stored in the home location register 71 based on the telephone number of the requesting wireless terminal 2 (step S106), and the read communication
  • the control information 20 is transmitted to the requesting wireless base station 3 (step S108).
  • the radio base station 3 stores the received communication control information 20 in a database or the like (step S110).
  • the operation center 7 transmits the read communication control information 20 to the requesting subscriber exchange 5 together with the location registration information (step S112).
  • the subscriber exchange 5 stores the communication control information 20 together with the received location registration information in the visitor location register 53 (step S114), and the requesting wireless terminal 2 via the wireless base station device 3 and the wireless network control device 4 A location registration response is transmitted to (step S116).
  • FIG. 6 is a flowchart showing the adaptive transmission power control process.
  • the adaptive transmission power control process is a process for performing W-CDMA adaptive transmission power control in the wireless access control.
  • the wireless base station 3 executes the adaptive transmission power control process, as shown in FIG. To do.
  • step S200 the upper limit value Pmax of the transmission power set for the wireless terminal 2 that is the target of wireless access control (hereinafter referred to as the target wireless terminal 2 in the description of FIG. 6) is stored in a database or the like.
  • the communication control information 20 corresponding to the target wireless terminal 2 is read out, and the process proceeds to step S202.
  • step S202 the SIR of the target wireless terminal 2 is measured
  • the process proceeds to step S204, and the target value Ptr of the transmission power of the target wireless terminal 2 is determined so that the measured value of the SIR becomes the target value.
  • step S206 the target value Ptr of the transmission power of the target wireless terminal 2 is determined so that the measured value of the SIR becomes the target value.
  • step S206 it is determined whether or not the target value Ptr of the transmission power is larger than the current value Pcr of the transmission power of the target wireless terminal 2, and when it is determined that the target value Ptr is larger than the current value Pcr (YES). Proceeds to step S208.
  • step S208 it is determined whether or not the target value Ptr of the transmission power is larger than the upper limit value Pmax of the transmission power. If it is determined that the target value Ptr is equal to or lower than the upper limit value Pmax (NO), the process proceeds to step S210. To do.
  • step S210 a transmission power increase command for increasing the transmission power to the target value Ptr is transmitted to the target wireless terminal 2, and the process proceeds to step S212, where the target value Ptr of the transmission power is set as the current value Pcr of the transmission power. The process proceeds to step S214.
  • step S214 it is determined whether or not the target value Ptr of the transmission power is smaller than the current value Pcr of the transmission power. If it is determined that the target value Ptr is smaller than the current value Pcr (YES), the process proceeds to step S216. To do.
  • step S216 a transmission power reduction command for reducing the transmission power to the target value Ptr is transmitted to the target wireless terminal 2, and the process proceeds to step S218 to set the transmission power target value Ptr as the current value of transmission power Pcr. Then, the series of processes is terminated and the original process is restored.
  • step S214 when it is determined in step S214 that the target value Ptr of the transmission power is equal to or greater than the current value Pcr of the transmission power (NO), the series of processes is terminated and the original process is returned.
  • step S208 when it is determined in step S208 that the target value Ptr of transmission power is larger than the upper limit value Pmax of transmission power (YES), the process proceeds to step S214. In this case, a process of moving the target wireless terminal 2 to the next furthest cell from the current cell is performed, or if the current cell is the farthest cell, the target wireless terminal 2 is connected to another wireless base station 3. Process to move.
  • step S206 when it is determined in step S206 that the target value Ptr of the transmission power is equal to or less than the current value Pcr of the transmission power (NO), the process proceeds to step S214.
  • the user or the like wants to reduce the upper limit value of the transmission power of the wireless terminal 2
  • the user or the like accesses the operation center 7 in the wireless terminal 2 or other communication terminal and uses the wireless terminal as the upper limit value of the transmission power.
  • a value lower than the maximum transmission power of 2 is set.
  • the operation center 7 When the operation center 7 receives a request from a user or the like, the upper limit value of the transmission power of the target wireless terminal 2 is set in the communication control information 20 by setting processing.
  • the upper limit value of the transmission power of the radio terminal 2 is set to the value set in the communication control information 20 for the radio terminal 2.
  • the transmission power of the wireless terminal 2 is controlled.
  • the operation center 7 sets a value lower than the maximum transmission power of the wireless terminal 2 in the communication control information 20 as the upper limit value of the transmission power for each wireless terminal 2.
  • the radio base station 3 controls the transmission power of the radio terminal 2 so that the upper limit value of the transmission power of the radio terminal 2 becomes the value set in the communication control information 20 for the radio terminal 2. .
  • power consumption can be suppressed by suppressing the upper limit value of the transmission power of the wireless terminal 2 with the intention of the user or the like. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the setting process of the operation center 7 corresponds to the transmission power upper limit setting means of the invention 1
  • steps S200 to S212 correspond to the wireless terminal control means of the invention 1
  • the maximum transmission power is This corresponds to the maximum upper limit value of the first aspect.
  • the first configuration includes transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the configuration of the first embodiment,
  • the upper limit value setting means sets the value acquired from the wireless terminal 2 by the transmission power upper limit value acquisition means as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the second configuration is a transmission power upper limit value obtained from the wireless terminal 2 related to the wireless terminal 2 with a value lower than the maximum transmission power of the wireless terminal 2 in the configuration of the first embodiment.
  • the transmission power upper limit setting unit includes an acquisition unit, and sets the value acquired by the transmission power upper limit acquisition unit from the radio terminal 2 related to the radio terminal 2 as the upper limit value of the transmission power of the radio terminal 2 To do. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 includes, for example, a wireless terminal 2 that is a communication partner or a wireless terminal 2 that is owned by family members, friends, employees, and other related parties.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the setting process (transmission power upper limit setting means) in the first embodiment may not be provided.
  • the transmission power upper limit value storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
  • a fourth configuration includes a transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the third configuration, and a transmission power from the wireless terminal 2 Transmission power upper limit value setting means for setting the value acquired by the upper limit value acquisition means in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • a fifth configuration is a transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2 in the third configuration, Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal 2 related to the wireless terminal 2 in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2 With.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • transmission power for setting a lower value than the maximum transmission power of the wireless terminal 2 as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device that includes an upper limit value setting unit and acquires a value set by the transmission power upper limit value setting unit from the management device; Is provided with wireless terminal control means for controlling the wireless terminal 2 so that the wireless terminal 2 has the value acquired by the transmission power upper limit value acquiring means. That is, the transmission power upper limit setting means is provided separately as a management device.
  • the management device may be a separate entity from the transmission power upper limit value acquisition means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
  • the management device includes a second transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2,
  • the transmission power upper limit value setting unit sets the value acquired from the wireless terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the management apparatus obtains a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2.
  • the transmission power upper limit setting unit includes an upper limit value acquisition unit, and the transmission power upper limit setting unit obtains the value acquired by the second transmission power upper limit acquisition unit from the wireless terminal 2 related to the wireless terminal 2 by the transmission power of the wireless terminal 2.
  • the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 is the same as described above.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device including a transmission power upper limit value storage unit that stores an upper limit value table, and that acquires a value set in the transmission power upper limit value table from the management device, and a wireless terminal Wireless terminal control means for controlling the wireless terminal 2 so that the upper limit value of the transmission power of 2 is the value acquired by the transmission power upper limit value acquisition means for the wireless terminal 2. That is, the transmission power upper limit storage means is provided separately as a management device.
  • the management device only needs to be separate from the transmission power upper limit value storage means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the setting process (transmission power upper limit setting means) in the first embodiment may not be provided. Further, the transmission power upper limit storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
  • the management device includes a second transmission power upper limit value acquisition unit configured to acquire a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2;
  • a transmission power upper limit value setting unit is provided that sets the value acquired from the terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2 in the transmission power upper limit value table. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • the management device acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2.
  • the value acquired by the second transmission power upper limit acquisition unit from the upper limit value acquisition unit and the wireless terminal 2 related to the wireless terminal 2 is stored in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2.
  • Transmission power upper limit setting means for setting For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 is the same as described above.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • a value lower than the maximum transmission power of the wireless terminal 2 is acquired from the wireless terminal 2 or the wireless terminal 2 related thereto.
  • the transmission power upper limit acquisition means and the upper limit value of the transmission power of the wireless terminal 2 are the values acquired by the transmission power upper limit acquisition means from the wireless terminal 2 or the wireless terminal 2 related thereto, Wireless terminal control means for controlling the wireless terminal 2.
  • the setting process (transmission power upper limit setting means) in the first embodiment may not be provided.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
  • the configuration of a mobile communication system for connecting a mobile phone or a mobile PC with a built-in communication device includes at least a wireless terminal 2, a wireless base station 3, a public communication network, and a "terminal on the other side in information transmission" Called a communication partner terminal).
  • the wireless terminal 2 when communication is established from a wireless terminal 2 to a communication partner terminal, the wireless terminal 2 is connected to the communication partner terminal through the wireless base station 3 through the public communication network. It becomes.
  • the states indicated by the expressions “normal” and “lower than normal” are defined below for transmission power and reception sensitivity.
  • the transmission power of the wireless terminal 2 in the mobile communication system cannot be changed to a desired value intentionally by the user or the like, and the intensity of the radio wave received from the wireless base station 3 is measured, and based on the result.
  • the wireless base station 3 and the wireless terminal 2 have determined the transmission power of the wireless terminal 2.
  • transmission power that has not been changed by the user or the like is referred to as “normal transmission power”, whereas transmission power that is intentionally changed by the user or the like is referred to as “transmission power lower than normal”. Yes.
  • FIG. 7 is a diagram illustrating a basic configuration of the radio base station 3 according to the second embodiment.
  • the radio base station 3 includes an “antenna” 111, a “reception unit” 410, a “transmission unit” 470, a “control signal generation unit” 450, and an “operation unit” 114.
  • the “receiver” 410 includes at least a “band limiter” 121, a “sensitivity controller” 122, an “automatic gain control amplifier” 123, a “channel selector” 126, and a “demodulator” 128.
  • the “reception signal” 331 received by the “antenna” 111 is input to the “reception unit” 410.
  • a “demodulation signal” 332 is output from the “reception unit” 410.
  • the “demodulated signal” 332 includes “information transmitted by the base station”.
  • the “sensitivity controller” 122 can change the reception sensitivity by the “correction control signal” 352 from the “control signal generator” 450.
  • the “transmitter” 470 includes at least a “carrier generator” 171, a “modulator” 172, and a “transmission power controller” 173.
  • the modulation signal” 374 including “information to be transmitted to the other party” is input to the “transmission unit” 470.
  • “Transmission unit” 470 generates “transmission signal” 375 and outputs it to “antenna” 111.
  • the “transmission power controller” 173 can vary the transmission power by the “correction control signal” 352 from the “control signal generator” 450.
  • the “operation means” 114 generates an “operation signal” 315 based on an operation performed by the user or the like, and outputs it to the “control signal generation unit” 450.
  • the “operation signal” 315 from the “operation means” 114 is input to the “control signal generator” 450.
  • “Control signal generator” 450 outputs “correction control signal” 352 determined based on the state of “operation signal” 315.
  • the “control signal generator” 450 outputs the generated “correction control signal” 352 to the “transmitter” 470 and the “receiver” 410 in common.
  • the “transmission unit” 470 and the “reception unit” 410 are controlled by the operation of the “operation means” 114.
  • control signal generation unit” 450 sets the “correction control signal” to a value that maintains “normal transmission power” and “normal reception sensitivity”. 352 is generated and output to the “transmission unit” 470 and the “reception unit” 410.
  • the “transmission power controller” 173 that is a component of the “transmission unit” 470 is input with the “correction control signal” 352 that maintains the “normal transmission power”, the “transmission unit” 470 The “transmission signal” 375 is output by “normal transmission power”.
  • the “sensitivity controller” 122 that is a component of the “reception unit” 410 is input with the “correction control signal” 352 that maintains the “normal reception sensitivity”, the “reception unit” 410 Generates “demodulated signal” 332 according to “normal reception sensitivity”.
  • the radio base station 3 determines the transmission power according to the intensity of the radio wave received from the radio terminal 2.
  • the wireless base station 3 reduces the transmission power. On the contrary, if the radio wave received from the wireless terminal 2 is weak, the wireless base station 3 increases the transmission power.
  • the radio base station 3 transmits with the minimum necessary transmission power. For example, when the radio base station 3 can receive radio waves from the radio terminal 2, if the transmission power of the radio base station 3 is simply reduced, the radio base station 3 does not reach the radio terminal 2 and cannot communicate. Further, the “communication symmetry” between the transmission power and the reception sensitivity of the wireless base station 3 as viewed from the wireless terminal 2 is broken. For this reason, the wireless terminal 2 cannot operate normally with respect to the wireless base station 3.
  • FIGS. 8A to 8C are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal
  • FIGS. 8D to 8F are upper limit values of transmission power
  • FIG. 6 is a diagram illustrating a transmission power characteristic, a reception sensitivity characteristic, and a reception intensity characteristic of a conventional wireless terminal when only the frequency is reduced.
  • FIGS. 9A to 9C are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal, and FIGS. 9D to 9F are shown in this embodiment. It is a figure which shows the transmission power characteristic of this radio base station 3, a reception sensitivity characteristic, and a reception intensity characteristic.
  • the vertical axis 800 represents transmission power, and the vertical axis 800 in FIGS. 8 (b), (e), 9 (b), and (e).
  • An axis 801 represents reception sensitivity, and a vertical axis 802 in FIGS. 8C and 8F and FIGS. 8C and 8F represents reception intensity.
  • the horizontal axis 803 represents a propagation loss ( ⁇ distance) between the conventional wireless terminal and the wireless base station (or between the wireless terminal 2 and the wireless base station 3). Is shown.
  • the transmission power increases as the propagation loss with the radio base station increases (that is, as the radio wave received from the radio base station becomes weaker).
  • the transmission power is controlled.
  • the maximum transmission power 804 that can be exhibited by the wireless terminal
  • the maximum transmission power 804 remains constant, and a signal is transmitted to the radio base station at a point where the propagation loss is slightly higher than the point at which the maximum transmission power 804 is reached. Can no longer communicate.
  • the reception sensitivity is set to the maximum reception sensitivity 805 that can be exhibited by the wireless terminal regardless of the propagation loss, so the reception intensity is shown in FIG. 8C.
  • the maximum reception strength 815 decreases, and when the propagation loss decreases to an allowable value 806, it becomes impossible to receive a signal from the radio base station.
  • the range 807 in which the wireless terminal can transmit a signal to the wireless base station and the range 808 in which the wireless terminal can receive a signal from the wireless base station are the same. Is maintained. This is because the system is designed so that “communication symmetry” is maintained in consideration of the characteristics of the antenna and the noise figure of the receiver. Therefore, when the propagation loss exceeds the ranges 807 and 808 and increases to the ranges 809 and 810, the wireless terminal cannot display communication with the wireless base station, so “out of range” is displayed.
  • the transmission power becomes constant at the constant value 811 when reaching the constant value 811 as shown in FIG.
  • the signal cannot be transmitted to the radio base station at a point slightly higher than the point at which the value reaches a certain value 811. Therefore, the range 812 in which the radio terminal can transmit a signal to the radio base station is smaller than when the upper limit value of the transmission power is not lowered.
  • the reception sensitivity is set to the maximum reception sensitivity 805 regardless of the propagation loss as shown in FIG. 8 (e). Therefore, the reception intensity is high in the propagation loss as shown in FIG. 8 (f).
  • the maximum reception strength 815 decreases, and when it decreases to an allowable value 806, a signal from the radio base station cannot be received. Accordingly, the range 808 in which the wireless terminal can receive a signal from the wireless base station is the same as when the upper limit value of the transmission power is not reduced.
  • the range 812 in which the wireless terminal can transmit signals to the wireless base station does not match the range 808 in which the wireless terminal can receive signals from the wireless base station. Collapses. That is, when the propagation loss exceeds the range 812 but does not exceed the range 808, a one-way communication state in which a signal cannot be transmitted to the radio base station but a signal can be received from the radio base station Therefore, the wireless terminal is in a state where it cannot make a call to the wireless base station even though “out of service area” is not displayed. This not only confuses the user, but also prevents the radio base station and the base station network from operating normally with respect to the radio terminal as described above.
  • the reception sensitivity is lowered to a constant value 813 in accordance with the reduced upper limit value 811 of the transmission power.
  • the reception sensitivity is increased to the maximum reception sensitivity 805 (for example, 0 [dB]) to a certain value 813 (for example, a value reduced by 10 [dB]).
  • the reception intensity also becomes a predetermined value (corresponding to a difference between the maximum reception sensitivity 805 and the constant value 813) as the propagation loss increases as the propagation loss increases, as shown in FIG. 9 (f). If the value decreases from the lowered fixed value 816 and falls to the allowable value 806, the signal from the wireless terminal 2 cannot be received. Accordingly, since the range of the reception intensity is reduced, the range 814 in which the radio base station 3 can receive a signal from the radio terminal 2 is smaller than when the reception sensitivity is not lowered.
  • the range 812 in which the radio base station 3 can transmit signals to the radio terminal 2 and the range 814 in which the radio base station 3 can receive signals from the radio terminal 2 match, so that “communication symmetry” is Kept.
  • the reception sensitivity may be lowered according to the upper limit value of the transmission power.
  • the range (reception range) in which the radio base station 3 can receive signals from the radio terminal 2 is It is preferable to reduce the frequency so as to coincide with a range (transmission range) in which signals can be transmitted to the wireless terminal 2.
  • the reception range and the transmission range do not necessarily need to be the same, and if the mismatch between the reception range and the transmission range can be reduced as compared with the case where the reception sensitivity is not lowered at all, the “symmetry of communication” is lost. Since the degree can be reduced, when the upper limit value of the transmission power is reduced, it is only necessary to reduce the reception sensitivity so that the reception range matches the transmission range or the mismatched portion becomes small. it can.
  • variable attenuator is used as the “sensitivity controller” 122 for the operation when the transmission power of the radio base station 3 is changed to “transmission power lower than normal” and the operation for preventing the above-mentioned problems. This will be explained with an example.
  • the user or the like manually changes the transmission power increasing or decreasing within a predetermined range to 1/10.
  • correction control signal 352 is input from “control signal generator” 450 to “sensitivity controller” 122 (variable attenuator) and “transmission power controller” 173. Is done.
  • the “correction control signal” 352 has a value of 1/10.
  • the “transmission power controller” 173 sets the transmission power to 1/10 of the original maximum transmission power.
  • “Sensitivity controller” 122 (variable attenuator) sets the attenuation rate to 1/10. Therefore, the radio base station 3 can switch the transmission power to “transmission power lower than normal” or return to “normal transmission power” by the operation of the user or the like. In conjunction with this, the reception sensitivity is switched to “reception sensitivity lower than normal” or returned to “normal reception sensitivity”.
  • the “sensitivity controller” 122 that is a component of the “receiving unit” 410 can be implemented by a variable attenuator and a variable amplifier.
  • the radio base station 3 decreases the upper limit value of the transmission power by operating the “operation means” 114, and decreases the reception sensitivity according to the lower limit value of the transmission power.
  • the reception performance reducing means for reducing the reception performance and the upper limit value of the transmission power is reduced according to the reception performance reduced by the reception performance reducing means.
  • a transmission power upper limit lowering means instead of the configuration of the second embodiment, the reception performance reducing means for reducing the reception performance, and the upper limit value of the transmission power is reduced according to the reception performance reduced by the reception performance reducing means.
  • a transmission power upper limit lowering means instead of the configuration of the second embodiment, the reception performance reducing means for reducing the reception performance, and the upper limit value of the transmission power is reduced according to the reception performance reduced by the reception performance reducing means.
  • a transmission power upper limit lowering means instead of the configuration of the second embodiment, the reception performance reducing means for reducing the reception performance, and the upper limit value of the transmission power is reduced according to the reception performance reduced by the reception performance reducing means.
  • a transmission power upper limit lowering means instead of the configuration of the second embodiment, the reception performance reducing means for reducing the reception performance, and the upper limit value of the transmission power is
  • transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and upper limit value of transmission power reduced by the transmission power upper limit value reducing means
  • a reception status notifying means for notifying the wireless terminal 2 of the reception status when the reception performance is reduced or when it is assumed to be reduced.
  • the reception status notifying means for notifying the wireless terminal 2 of the reception status when the reception performance is reduced or when the reception performance is reduced, and the decrease Transmission power upper limit lowering means for lowering the upper limit of the transmission power according to the reception performance when it is reduced or reduced.
  • the notification content is the reception status when the reception performance is reduced according to the upper limit value of the reduced transmission power.
  • the notification content is a case where the reception performance is decreased according to the upper limit value of the decreased transmission power.
  • Receive status is, for example, “Current reception strength is ** [dB]” in analog communication, and “Current error rate is **” in digital communication. It becomes. However, it is sufficient to include only the information “**” in the transmission signal.
  • the reception performance lowering unit decreases the reception performance of the radio terminal 2 for each radio terminal 2. However, the reception performance for specific or all wireless terminals 2 may be reduced.
  • the fifth configuration is the radio terminal 2 in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, or the fourth configuration. Every time, the upper limit value of the transmission power to the wireless terminal 2 is reduced. But you may reduce the upper limit of the transmission power to the specific or all the radio
  • the sixth configuration is registered in advance according to the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, or the fifth configuration. Communication with the wireless terminal 2 in wireless transmission / reception stronger than the radio field intensity is established.
  • the seventh configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is the reception sensitivity.
  • the eighth configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is a reference value for determining that communication is established.
  • the ninth configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is an allowable value of the error rate of received data.
  • a transmission power upper limit value that increases the upper limit value of transmission power to the wireless terminal 2 from the reference upper limit value.
  • An increase means is provided. If the transmission power of the wireless base station 3 increases, the wireless terminal 2 decreases its own transmission power. Therefore, the power consumption can be reduced by suppressing the upper limit value of the transmission power of the wireless terminal 2 with the intention of the user or the like. Can be suppressed. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the eleventh configuration includes reception performance increasing means for increasing the reception performance in accordance with the upper limit value of the transmission power increased by the transmission power upper limit value increasing means in the tenth configuration.
  • reception performance the seventh configuration, the eighth configuration, or the ninth configuration can be employed.
  • Such a configuration can reduce the degree to which “communication symmetry” is broken.
  • an antenna having a gain higher than the reference gain and an upper limit value of transmission power to the target wireless terminal 2 are higher than the reference upper limit value.
  • the thirteenth configuration includes reception performance increasing means for increasing the reception performance according to the upper limit value of transmission power increased by the antenna control means in the twelfth configuration.
  • reception performance the seventh configuration, the eighth configuration, or the ninth configuration can be employed.
  • Such a configuration can reduce the degree to which “communication symmetry” is broken.
  • the configuration of the second embodiment or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, the sixth configuration in the modification of the second embodiment In the seventh configuration, the eighth configuration, the ninth configuration, the tenth configuration, the eleventh configuration, the twelfth configuration, or the thirteenth configuration, the configuration of the first embodiment, or the third implementation
  • the tenth configuration, the eleventh configuration, or the twelfth configuration can also be applied. That is, a configuration for setting an upper limit value of transmission power and a configuration for storing a table can be adopted.
  • the wireless terminal 2 is connected to the wireless terminal 2 for each wireless terminal 2.
  • Storage means for storing a transmission power upper limit value table in which an upper limit value of the transmission power of the wireless base station 3 is set is provided, and the transmission power upper limit value increasing means transmits the transmission power to the wireless terminal 2 for each wireless terminal 2.
  • the upper limit value of power is increased to the value set in the transmission power upper limit value table for the wireless terminal 2.
  • the radio base station 3 executes normal adaptive transmission power control processing in W-CDMA instead of the adaptive transmission power control processing in FIG. 6, and in this embodiment, the radio communication control processing shown in the flowchart in FIG. Execute.
  • FIG. 10 is a flowchart showing the wireless communication control process.
  • the wireless communication control process is executed in the wireless base station 3, first, the process proceeds to step S300 as shown in FIG.
  • step S300 the upper limit value Pmax of the transmission power set for the wireless terminal 2 (hereinafter referred to as “target wireless terminal 2” in the description of FIG. 10) subject to wireless access control is stored in a database or the like.
  • the communication control information 20 corresponding to the target wireless terminal 2 is read, and the process proceeds to step S302.
  • step S302 the current value Pcr of the transmission power of the target wireless terminal 2 is received from the target wireless terminal 2, and the process proceeds to step S304, where the current value Pcr of the transmission power is larger than the upper limit value Pmax of the transmission power. If it is determined whether or not the current value Pcr is equal to or lower than the upper limit value Pmax (NO), the process proceeds to step S306.
  • step S306 processing for performing normal radio access control in W-CDMA is executed, a series of processing is terminated, and the original processing is restored.
  • step S304 when it is determined in step S304 that the current value Pcr of the transmission power is larger than the upper limit value Pmax of the transmission power (YES), the series of processes is terminated and the original process is restored.
  • the user or the like wants to reduce the upper limit value of the transmission power of the wireless terminal 2
  • the user or the like accesses the operation center 7 in the wireless terminal 2 or other communication terminal and uses the wireless terminal as the upper limit value of the transmission power.
  • a value lower than the maximum transmission power of 2 is set.
  • the operation center 7 When the operation center 7 receives a request from a user or the like, the upper limit value of the transmission power of the target wireless terminal 2 is set in the communication control information 20 by setting processing.
  • the radio base station 3 When the upper limit value of the transmission power is set, the radio base station 3 performs radio access only when the transmission power of the radio terminal 2 is smaller than the value set in the communication control information 20 for the radio terminal 2. Control is performed.
  • the radio base station 3 receives the current value Pcr of the transmission power of the radio terminal 2, and the received current value Pcr of the transmission power is set for the radio terminal 2. If the transmission power exceeds the upper limit Pmax, communication with the wireless terminal 2 is prohibited.
  • the wireless terminal 2 when the wireless terminal 2 communicates with the transmission power exceeding the upper limit value Pmax, the wireless terminal 2 cannot communicate with the wireless base station 3. Power consumption can be suppressed by suppressing power. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • step S302 corresponds to the transmission power value acquisition means of the invention 28 or 29
  • steps S300 and S304 correspond to the communication prohibition means of the invention 28 or 29
  • the setting process of the operation center 7 is This corresponds to the transmission power upper limit setting means of the twenty-ninth aspect.
  • the first configuration includes transmission power upper limit value acquisition means for acquiring from the wireless terminal 2 a value lower than the maximum transmission power of the wireless terminal 2 in the configuration of the third embodiment,
  • the upper limit value setting means sets the value acquired from the wireless terminal 2 by the transmission power upper limit value acquisition means as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the second configuration is a transmission power upper limit value obtained from the wireless terminal 2 related to the wireless terminal 2 that is lower than the maximum transmission power of the wireless terminal 2 in the configuration of the third embodiment.
  • the transmission power upper limit setting unit includes an acquisition unit, and sets the value acquired by the transmission power upper limit acquisition unit from the radio terminal 2 related to the radio terminal 2 as the upper limit value of the transmission power of the radio terminal 2 To do. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 includes, for example, a wireless terminal 2 that is a communication partner or a wireless terminal 2 that is owned by family members, friends, employees, and other related parties.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the setting process (transmission power upper limit setting means) in the third embodiment may not be provided.
  • the transmission power upper limit value storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
  • a fourth configuration includes a transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the third configuration, and a transmission power from the wireless terminal 2 Transmission power upper limit value setting means for setting the value acquired by the upper limit value acquisition means in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • a fifth configuration is a transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2 in the third configuration, Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal 2 related to the wireless terminal 2 in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2 With.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • transmission power for setting a lower value than the maximum transmission power of the wireless terminal 2 as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device including an upper limit value setting unit and acquires the value set by the transmission power upper limit value setting unit from the management device, and an upper limit value of the transmission power of the wireless terminal 2 Is provided with wireless terminal control means for controlling the wireless terminal 2 so that the wireless terminal 2 has the value acquired by the transmission power upper limit value acquiring means. That is, the transmission power upper limit setting means is provided separately as a management device.
  • the management device may be a separate entity from the transmission power upper limit value acquisition means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured.
  • the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
  • the management device includes a second transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2,
  • the transmission power upper limit value setting unit sets the value acquired from the wireless terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • the management apparatus obtains a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2.
  • the transmission power upper limit setting unit includes an upper limit value acquisition unit, and the transmission power upper limit setting unit obtains the value acquired by the second transmission power upper limit acquisition unit from the wireless terminal 2 related to the wireless terminal 2 by the transmission power of the wireless terminal 2.
  • the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 is the same as described above.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
  • transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device that includes a transmission power upper limit value storage unit that stores an upper limit value table, and that acquires a value set in the transmission power upper limit value table from the management device, and a wireless terminal Wireless terminal control means for controlling the wireless terminal 2 so that the upper limit value of the transmission power of 2 is the value acquired by the transmission power upper limit value acquisition means for the wireless terminal 2. That is, the transmission power upper limit storage means is provided separately as a management device.
  • the management device only needs to be separate from the transmission power upper limit value storage means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the setting process (transmission power upper limit setting means) in the third embodiment may not be provided. Further, the transmission power upper limit storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
  • the management device includes a second transmission power upper limit value acquisition unit configured to acquire a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2;
  • a transmission power upper limit value setting unit is provided that sets the value acquired from the terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2 in the transmission power upper limit value table. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • the management device acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2.
  • the value acquired by the second transmission power upper limit acquisition unit from the upper limit value acquisition unit and the wireless terminal 2 related to the wireless terminal 2 is stored in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2.
  • Transmission power upper limit setting means for setting For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2.
  • the wireless terminal 2 related to the wireless terminal 2 is the same as described above.
  • the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
  • a value lower than the maximum transmission power of the wireless terminal 2 is acquired from the wireless terminal 2 or the wireless terminal 2 related thereto.
  • the transmission power upper limit acquisition means and the upper limit value of the transmission power of the wireless terminal 2 are the values acquired by the transmission power upper limit acquisition means from the wireless terminal 2 or the wireless terminal 2 related thereto, Wireless terminal control means for controlling the wireless terminal 2.
  • the setting process (transmission power upper limit setting means) in the third embodiment may not be provided.
  • the transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
  • the wireless terminal 2 receives the current value Pcr of the transmission power of the wireless base station 3, and the received current value Pcr of the transmission power is If the upper limit value Pmax of transmission power set for the radio base station 3 is exceeded, communication with the radio base station 3 is prohibited.
  • the present invention can also be applied to a one-to-one communication relationship such as a transceiver. That is, the present invention can be widely applied to the wireless terminal 2, the wireless base station 3, the transceiver and other wireless transceivers.
  • the communication partner cannot communicate with the wireless transceiver when communicating with a transmission power that exceeds or exceeds a predetermined value.
  • Power consumption can be suppressed by suppressing the transmission power of the other party. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
  • the received radio wave intensity is measured, and based on this, the upper limit value of transmission power is reduced, and a state in which good communication can be expected is determined.
  • the error rate of the received data is measured, the reception sensitivity is reduced based on the error rate, and good communication is expected. You may judge the state which can be performed.
  • the reception sensitivity is reduced according to the upper limit value of the transmission power reduced by the operation of the “operation unit” 114.
  • the present invention is not limited to this.
  • the allowable value of the error rate of the received data can be reduced in accordance with the upper limit value of the transmission power reduced by the operation of the “operation means” 114.
  • the “normal transmission power” state when the error rate of the received data is equal to or lower than the first threshold (error rate allowable value), it is determined that communication is established, whereas “transmission lower than normal” In the “power” state, it is determined that communication is established when the error rate of the received data is equal to or lower than a second threshold value (allowable error rate) lower than the first threshold value.
  • the first threshold error rate allowable value
  • the upper limit value of the transmission power is lowered by the operation of the “operation means” 114, and the reception sensitivity is lowered according to the lower limit value of the transmission power.
  • the operation means 114
  • the reception sensitivity is lowered according to the lower limit value of the transmission power.
  • a “storage unit” that stores fixed information indicating a value lower than the maximum transmission power as a fixed value of the upper limit value of transmission power is provided, and the upper limit value of the transmission power is set by the fixed information of “storage unit”.
  • the value is fixed to a value lower than the maximum transmission power, and the reception sensitivity is fixed to a value lower than the maximum reception sensitivity according to the fixed upper limit value of the transmission power.
  • the “operation means” 114 may not be provided.
  • fixed information indicating a value lower than the maximum reception performance is stored as a fixed value of reception performance (for example, reception sensitivity, a reference value for determining that communication is established or an allowable value of an error rate of received data).
  • the “storage means” is provided, the reception performance is fixed to a value lower than the maximum reception performance by the fixed information of the “storage means”, and the upper limit value of the transmission power is lower than the maximum transmission power according to the fixed reception performance.
  • the maximum reception performance refers to the maximum value of the reception performance that can be realized by the wireless transceiver or the maximum reception performance based on the standard required when the communication quality with the wireless base station is the minimum.
  • the “operation means” 114 may not be provided.
  • a single operation reduces the upper limit value of transmission power (hereinafter referred to as transmission control) and the reception sensitivity (hereinafter referred to as reception control).
  • transmission control transmission control
  • reception control reception control
  • the predetermined operation that triggers transmission control or reception control may be common to an operation that activates another function. For example, if the operation is common to the operation for increasing / decreasing the call volume, the upper limit value of the transmission power can be decreased along with the operation for decreasing the call volume.
  • the reception sensitivity is configured to be reduced to a constant value 813 regardless of the propagation loss.
  • the present invention is not limited to this, and for example, it may be configured to gradually decrease from the maximum receiving sensitivity 805 to a constant value 813 as the propagation loss increases.
  • the radio base station 3 reduces the upper limit value of the transmission power by operating the “operation unit” 114, and the reception sensitivity according to the reduced upper limit value of the transmission power.
  • the transmission power is lower than the transmission power (maximum transmission power 804) required for communication with the wireless terminal 2. It can be said that the value (constant value 811) is set as the upper limit value and the transmission power is suppressed.
  • the radio base station 3 is configured to reduce the upper limit value of the transmission power and lower the reception sensitivity according to the lower limit value of the transmission power.
  • the present invention is not limited to this, and the following configuration may be employed.
  • the upper limit value of the transmission power of the wireless base station 3 is lower than the maximum transmission power according to the standard required when the communication quality with the communication partner (for example, the wireless terminal 2) is minimum.
  • the reception performance of the wireless base station 3 is a value lower than the standard maximum reception performance required when the communication quality with the communication partner is the minimum. That is, the configuration in which the upper limit value of transmission power and the reception sensitivity are not lowered as in the second embodiment and its modification, but the upper limit value of transmission power and the reception sensitivity are originally low values from the beginning. It is.
  • the upper limit value of the transmission power of the wireless base station 3 is lower than the maximum transmission power according to the standard required when the communication quality with the communication partner (for example, the wireless terminal 2) is minimum. This is a value, and the communication status is notified to the communication partner when the reception performance of the radio base station 3 is set to a value lower than the maximum reception performance according to the standard required when the communication quality with the communication partner is minimum. . That is, the configuration in which the upper limit value of transmission power and the reception sensitivity are not lowered as in the second embodiment and its modification, but the upper limit value of transmission power and the reception sensitivity are originally low values from the beginning. It is.
  • the upper limit value of the transmission power of the radio base station 3 is reduced to a value lower than the maximum upper limit value, and a transmission power higher than the lower limit value of the transmission power is received from the communication partner required for communication. Notify when. In other words, the reception performance of the radio base station 3 does not necessarily need to be reduced, but notification is made so that at least reception is possible even in a region where the reception range does not match the transmission range.
  • the upper limit value of the transmission power of the radio base station 3 is a value lower than the maximum transmission power according to the standard required when the communication quality with the communication partner is the minimum, and the upper limit of the transmission power When a transmission power higher than the value is received from a communication partner required for communication, a notification is performed.
  • the reception performance of the radio base station 3 does not necessarily need to be reduced, but notification is made so that at least reception is possible even in a region where the reception range does not match the transmission range.
  • the first notification mode when received from a communication partner that can communicate with transmission power equal to or lower than the upper limit value of transmission power, the first notification mode (for example, voice pattern 1 or vibration pattern) 1), when a transmission power higher than the upper limit value of the transmission power is received from a communication partner required for communication, a second notification mode (for example, voice pattern 2 or vibration) different from the first notification mode Notification in pattern 2).
  • the first notification mode for example, voice pattern 1 or vibration pattern
  • a second notification mode for example, voice pattern 2 or vibration
  • an abnormality detection means for detecting an abnormality in the communication network for example, congestion of the communication network, failure (including equipment and line failures), artificial regulation and other abnormalities
  • the radio zone covered by the radio base station 3 is reduced, so that the number of radio terminals 2 to be subjected to radio access control can be reduced. Therefore, it can be expected that communication is efficiently performed when a communication network is abnormal and that many people can communicate.
  • the upper limit value of the transmission power is set by accessing the operation center 7.
  • the upper limit value of the transmission power is set by making a call to (for example, 0 [W] for 0990-XX-XXX1, 0.01 [W] for 0990-XX-XXX2, and 0990-XX-XXX3. It is also possible to configure such that it is set to 0.001 [W]. Thereby, since the setting can be performed only by making a call to a specific telephone number, it is easy to set the upper limit value of the transmission power.
  • the process of step S302 is configured to receive the current value Pcr of the transmission power of the target wireless terminal 2 from the target wireless terminal 2.
  • the current value Pcr of the transmission power of the target wireless terminal 2 is held by internal processing such as adaptive transmission power control processing, the current value Pcr of the transmission power of the target wireless terminal 2 is stored in the wireless base station 3. It can also be configured to obtain from internal processing.
  • the present invention is not limited thereto, and the wireless terminal 2 or other communication terminals related to the target wireless terminal 2, the wireless network control device 4, the subscriber switch 5, the relay switch 6, or the operation center 7 are configured to obtain the information. You can also
  • transmission power for increasing the upper limit value of transmission power to the wireless terminal 2 from the reference upper limit value is increased.
  • the present invention is not limited to this, and detects abnormalities in the communication network (for example, communication network congestion, failures (including device and line failures), human regulation, and other abnormalities).
  • An abnormality detection means is provided, and the transmission power upper limit value increasing means sets the upper limit value of the transmission power to the wireless terminal 2 for each wireless terminal 2 when the abnormality is detected by the abnormality detection means. It can also be configured to increase.
  • the wireless terminal 2 can communicate with low power consumption in the event of an abnormality, the possibility that communication cannot be performed in the event of an abnormality can be reduced.
  • the antenna having a gain higher than the reference gain and the upper limit value of the transmission power to the target wireless terminal 2 are the reference upper limit values.
  • the present invention is not limited to this.
  • communication network abnormalities for example, communication network congestion and failures (including device and line failures)
  • the antenna control means is configured such that an upper limit value of transmission power to the target wireless terminal 2 is a reference upper limit value when an abnormality is detected by the anomaly detecting means.
  • the antenna may be controlled so as to increase more.
  • the wireless terminal 2 can communicate with low power consumption in the event of an abnormality, the possibility that communication cannot be performed in the event of an abnormality can be reduced.
  • DESCRIPTION OF SYMBOLS 100 Communication system, 2 ... Wireless terminal, 3 ... Wireless base station apparatus, 4 ... Wireless network control apparatus, 5 ... Subscriber switch, 51 ... Voice switch, 52 ... Packet switch, 53 ... Visitor location register, 6 ... Relay Switch, 61 ... relay voice switch, 62 ... relay packet switch, 7 ... operation center, 71 ... home location register, 9,13 ... gateway switch, 10 ... gateway, 12 ... POI, 20 ... communication control information, 111 ... antenna, 114 ... operation means, 121 ... band limiter, 122 ... sensitivity controller, 123 ... automatic gain control amplifier, 126 ... channel selector, 128 ... demodulator, 171 ...

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Provided is a communication system that is able to suppress power consumption by restricting a transmission-power upper-limit value in accordance with the intention of a user and so on. In a communication system (100), for each wireless terminal (2), a value that is lower than the maximum transmission power of the wireless terminal (2) in question is set as a transmission-power upper-limit value, and the transmission power of that wireless terminal (2) is controlled in such a way that the transmission-power upper-limit value of the wireless terminal (2) becomes the value set for that wireless terminal (2). It is therefore possible for power consumption to be suppressed by restricting the transmission-power upper-limit value of the wireless terminal (2) in accordance with the intention of the user and so on. Furthermore, it is possible for the effects of radio-frequency electromagnetic fields on the human body to be lessened.

Description

無線基地局Wireless base station
　本発明は、通信網を介して無線端末機が行う通信を制御する通信システムに係り、特に、無線端末機又は通信システムの送信電力の制御技術に関する。 The present invention relates to a communication system that controls communication performed by a wireless terminal via a communication network, and more particularly, to a transmission power control technique for a wireless terminal or a communication system.
　近年、バッテリーを電源に使用した携帯電話機や通信機内蔵のモバイルＰＣなど、移動体通信システムにおける無線端末機（以下、単に無線端末機という。）が広く普及しており、様々な省電力技術を駆使して消費電力を少しでも抑えるための技術開発が行われている。 In recent years, wireless terminals (hereinafter simply referred to as wireless terminals) in mobile communication systems such as mobile phones using batteries as power sources and mobile PCs with built-in communication devices have become widespread, and various power-saving technologies have been developed. Technology is being developed to make the best use of power consumption.
　一方、無線端末機の電力消費の内訳をみると送信に関する割合が大きい。その送信電力の決定については、従来の無線端末機は、移動体通信システムにおける無線基地局（以下、単に無線基地局という。）から届いた受信信号の信号強度や品質に基づいて決定している。 On the other hand, looking at the breakdown of the power consumption of wireless terminals, the ratio related to transmission is large. The transmission power is determined based on the signal strength and quality of a received signal received from a radio base station (hereinafter simply referred to as a radio base station) in a mobile communication system. .
　従来技術の例として、特許文献１記載の技術は、無線通信における受信信号の強度を測定し送信電力を決定する技術である。 As an example of the prior art, the technique described in Patent Document 1 is a technique for measuring transmission signal strength by measuring the strength of a received signal in wireless communication.
特開平０７－２２６７１０号公報Japanese Patent Application Laid-Open No. 07-226710
　しかし、従来の無線端末機は、使用者等（使用者、保護者、管理者、製造者、販売者、通信事業者その他の者を含む。以下、同様。）が意図して送信電力を制御できないため、電源を入れた状態では、使用者等が消費電力を抑えようと送信電力を小さくすることはできない。このため、無線基地局からの電波が届き難い環境下においては、無線端末機は最大出力で送信するため、使用者等の予想に反して電力を消費する原因の一つとなっていた。 However, conventional wireless terminals are intended to control transmission power by users (including users, guardians, managers, manufacturers, sellers, telecommunications carriers and others). Therefore, when the power is turned on, the transmission power cannot be reduced by a user or the like in order to reduce power consumption. For this reason, in an environment where radio waves from the radio base station are difficult to reach, the radio terminal transmits at the maximum output, which is one of the causes of consuming power against the expectation of users and the like.
　本発明の目的は、使用者等の意図で送信電力を抑制することで消費電力を抑えることができる通信システムを提供することである。 An object of the present invention is to provide a communication system capable of suppressing power consumption by suppressing transmission power with the intention of a user or the like.
　あらかじめ決められた送信電力で無線基地局から放射された電波は、受信までの経路で伝搬損失を受けて無線端末機で受信される。 The radio wave radiated from the radio base station with a predetermined transmission power is received by the radio terminal after receiving a propagation loss in the route up to reception.
　同様に、無線端末機から放射された電波も受信までの経路で前記伝搬損失と同じ損失量を受けて無線基地局で受信される。このように送信側と受信側の伝搬損失量は等しいから通信は対称である。 Similarly, radio waves radiated from the wireless terminal are received by the wireless base station after receiving the same loss amount as the propagation loss on the route up to reception. In this way, the transmission loss is the same between the transmission side and the reception side, so communication is symmetrical.
　通常、無線基地局と無線端末機の最大送信電力は異なる。
　無線基地局と無線端末機の送信出力が異なっていても、アンテナの特性や受信部の雑音指数などを加味して「通信の対称性」が保たれるようシステム設計がなされている。 Usually, the maximum transmission power of a radio base station and a radio terminal is different.
Even when the transmission output of the radio base station and the radio terminal is different, the system design is made so that “symmetry of communication” is maintained in consideration of the antenna characteristics and the noise figure of the receiver.
　ここで、無線端末機の送信電力だけを低下させた場合は、無線基地局で受信する信号が弱くなり、「通信の対称性」が成り立たなくなる。この状態において、無線端末機側だけで「通信の対称性」を保つには、無線端末機が低下させた送信電力に見合うように受信感度も下げてやればよい。 Here, when only the transmission power of the wireless terminal is reduced, the signal received by the wireless base station becomes weak, and “communication symmetry” does not hold. In this state, in order to maintain “communication symmetry” only on the wireless terminal side, it is only necessary to reduce the reception sensitivity to match the transmission power reduced by the wireless terminal.
　本発明の目的は、「通信の対称性」を確保した上で、使用者等の意図で送信電力を抑制することを可能にするものである。 An object of the present invention is to make it possible to suppress transmission power with the intention of a user or the like while ensuring “symmetry of communication”.
　〔発明１〕　上記目的を達成するために、発明１の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段と、前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値設定手段で設定された値となるように、当該無線端末機を制御する無線端末機制御手段とを備える。 [Invention 1] In order to achieve the above object, the communication system of Invention 1 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and for each wireless terminal, an upper limit value of transmission power is set. A transmission power upper limit setting means for setting a value lower than the maximum upper limit value of the wireless terminal, and an upper limit value of the transmission power of the wireless terminal are set by the transmission power upper limit setting means for the wireless terminal. Wireless terminal control means for controlling the wireless terminal so as to obtain the same value.
　ここで、通信とは、発信側の無線端末機が行う通信（発信）、又は着信側の無線端末機が行う通信（着信）が含まれる。以下、発明４、７、１０、１３、１４、１６、１８乃至２１及び２８の通信システム、並びに発明４２の無線送受信機において同じである。 Here, the communication includes communication (outgoing) performed by a transmitting-side wireless terminal or communication (receiving) performed by a receiving-side wireless terminal. Hereinafter, the same applies to the communication systems of Inventions 4, 7, 10, 13, 14, 16, 18, 21 to 28, and the wireless transceiver of Invention 42.
　また、通信には、通話、データ通信その他の通信が含まれる。また、階層の観点からは、物理層レベルでの通信又は論理層レベルでの通信が含まれる。以下、発明４、７、１０、１３、１４、１６、１８乃至２１及び２８の通信システム、並びに発明４２の無線送受信機において同じである。 In addition, communication includes telephone calls, data communication, and other communications. Further, from the viewpoint of the hierarchy, communication at the physical layer level or communication at the logical layer level is included. Hereinafter, the same applies to the communication systems of Inventions 4, 7, 10, 13, 14, 16, 18, 21 to 28, and the wireless transceiver of Invention 42.
　また、送信電力の最大上限値とは、無線端末機が性能上実現可能な送信電力の最大値、又は、通信相手方（例えば、本通信システム）との通信品質が最低限である場合に必要な規格上の最大送信電力をいう。以下、発明４、７、１０、１３、２９、３２、３５、３８及び４１の通信システムにおいて同じである。 In addition, the maximum upper limit value of the transmission power is the maximum value of the transmission power that can be realized by the performance of the wireless terminal, or is necessary when the communication quality with the communication partner (for example, the communication system) is the minimum. The maximum transmission power according to the standard. Hereinafter, the same applies to the communication systems of Inventions 4, 7, 10, 13, 29, 32, 35, 38 and 41.
　また、無線端末機制御手段は、無線端末機を制御するようになっていればどのような構成であってもよく、例えば、無線端末機の送信電力を制御する構成、無線端末機の送信電力の上限値を制御し、設定し若しくは固定する構成、無線端末機の受信性能を制御する構成、又は無線端末機の受信性能の上限値を制御し、設定し若しくは固定する構成が含まれる。以下、発明４、７、１０及び１３の通信システムにおいて同じである。 Further, the wireless terminal control means may have any configuration as long as it is configured to control the wireless terminal, for example, a configuration for controlling the transmission power of the wireless terminal, a transmission power of the wireless terminal Includes a configuration for controlling, setting or fixing the upper limit value, a configuration for controlling the reception performance of the wireless terminal, or a configuration for controlling, setting or fixing the upper limit value of the reception performance of the wireless terminal. Hereinafter, the same applies to the communication systems of the inventions 4, 7, 10 and 13.
　また、本システムは、単一の装置（例えば、無線基地局）、端末その他の機器として実現するようにしてもよいし、複数の装置（例えば、交換機及び無線基地局）、端末その他の機器を通信可能に接続したネットワークシステムとして実現するようにしてもよい。後者の場合、各構成要素は、それぞれ通信可能に接続されていれば、複数の機器等のうちいずれに属していてもよい。以下、発明４、７、１０、１３、１４、１６、１８乃至２１及び２８の通信システムにおいて同じである。 In addition, the present system may be realized as a single device (for example, a radio base station), a terminal, or other devices, or a plurality of devices (for example, an exchange and a radio base station), a terminal, or other devices. You may make it implement | achieve as a network system connected so that communication was possible. In the latter case, each component may belong to any one of a plurality of devices and the like as long as they are connected so as to communicate with each other. The same applies to the communication systems of Inventions 4, 7, 10, 13, 14, 16, 18 to 21 and 28.
　〔発明２〕　さらに、発明２の通信システムは、発明１の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 2] The communication system of Invention 2 further includes transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal in the communication system of Invention 1, The transmission power upper limit setting means sets the value acquired by the transmission power upper limit acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　ここで、送信電力上限値取得手段は、送信電力の上限値を取得するようになっていればどのような構成であってもよく、例えば、入力装置等から送信電力の上限値を入力するようになっていてもよいし、外部の端末等から送信電力の上限値を獲得又は受信するようになっていてもよいし、記憶装置や記憶媒体等から送信電力の上限値を読み取るようになっていてもよい。したがって、取得には、少なくとも入力、獲得、受信及び読出が含まれる。以下、取得の概念については同じである。 Here, the transmission power upper limit value acquisition unit may have any configuration as long as the upper limit value of the transmission power is acquired. For example, the upper limit value of the transmission power is input from an input device or the like. The upper limit value of transmission power may be acquired or received from an external terminal or the like, or the upper limit value of transmission power may be read from a storage device or a storage medium. May be. Thus, acquisition includes at least input, acquisition, reception and reading. Hereinafter, the concept of acquisition is the same.
　〔発明３〕　さらに、発明３の通信システムは、発明１の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 3] Further, in the communication system of Invention 3, in the communication system of Invention 1, a transmission power upper limit for obtaining a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. The transmission power upper limit value setting means includes a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal. Set.
　ここで、無線端末機に関連する無線端末機としては、例えば、通信相手先の無線端末機、又は家族、友人、社員その他の関係者間で所有する無線端末機が含まれる。以下、発明６、９、１２、１３、３１、３４、３７、４０及び４１の通信システムにおいて同じである。 Here, the wireless terminal related to the wireless terminal includes, for example, a wireless terminal that is a communication partner or a wireless terminal that is owned by family members, friends, employees, and other related parties. The same applies to the communication systems of Inventions 6, 9, 12, 13, 31, 34, 37, 40, and 41 below.
　〔発明４〕　さらに、発明４の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段と、前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値テーブルに設定された値となるように、当該無線端末機を制御する無線端末機制御手段とを備える。 [Invention 4] Furthermore, the communication system of Invention 4 is a communication system that is connected to a plurality of wireless terminals so as to be able to perform wireless communication. For each wireless terminal, the maximum transmission power of the wireless terminal Transmission power upper limit value storage means for storing a transmission power upper limit value table in which a value lower than the upper limit value is stored, and an upper limit value of the transmission power of the wireless terminal is set in the transmission power upper limit value table for the wireless terminal Wireless terminal control means for controlling the wireless terminal so that the obtained value is obtained.
　〔発明５〕　さらに、発明５の通信システムは、発明４の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段と、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 5] Further, the communication system of Invention 5 is the communication system of Invention 4, in which the transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal; A transmission power upper limit value setting unit configured to set, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　〔発明６〕　さらに、発明６の通信システムは、発明４の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段と、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 6] Furthermore, the communication system of Invention 6 is the communication system of Invention 4, wherein the upper limit of transmission power for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal associated with the wireless terminal. A value acquisition means and a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal is set in the transmission power upper limit value table as an upper limit value of the transmission power of the wireless terminal. Power upper limit setting means.
　〔発明７〕　さらに、発明７の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、前記送信電力上限値設定手段で設定された値を前記管理装置から取得する送信電力上限値取得手段と、前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備える。 [Invention 7] Furthermore, the communication system of Invention 7 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication. For each wireless terminal, the maximum value of the wireless terminal is set as a maximum transmission power. Transmission power upper limit value acquisition that connects to a management device that includes a transmission power upper limit value setting unit that sets a value lower than the upper limit value in a communicable manner and acquires the value set by the transmission power upper limit value setting unit from the management device And a wireless terminal control means for controlling the wireless terminal so that the upper limit value of the transmission power of the wireless terminal is the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. Prepare.
　〔発明８〕　さらに、発明８の通信システムは、発明７の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 8] The communication system of Invention 8 is the communication system of Invention 7, wherein the management device obtains a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal. The transmission power upper limit value setting means sets the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　〔発明９〕　さらに、発明９の通信システムは、発明７の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 9] Further, in the communication system of Invention 9, in the communication system of Invention 7, the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. Second transmission power upper limit value acquisition means for acquiring, wherein the transmission power upper limit setting means obtains the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal associated with the wireless terminal. Set as the upper limit of the transmission power of the terminal.
　〔発明１０〕　さらに、発明１０の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、前記送信電力上限値テーブルに設定された値を前記管理装置から取得する送信電力上限値取得手段と、前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備える。 [Invention 10] Furthermore, the communication system of Invention 10 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication. For each wireless terminal, the maximum transmission power of the wireless terminal is A communication device is communicably connected to a management device that includes a transmission power upper limit value storage unit that stores a transmission power upper value table in which a value lower than the upper limit value is set, and the value set in the transmission power upper value table is transmitted from the management device. The wireless terminal is controlled so that the transmission power upper limit acquisition means to be acquired and the transmission power upper limit value of the wireless terminal are the values acquired by the transmission power upper limit acquisition means for the wireless terminal. Wireless terminal control means.
　〔発明１１〕　さらに、発明１１の通信システムは、発明１０の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段と、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段を備える。 [Invention 11] Further, the communication system of Invention 11 is the communication system of Invention 10, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal. The transmission power upper limit value that sets the upper limit value acquisition means and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal. Setting means is provided.
　〔発明１２〕　さらに、発明１２の通信システムは、発明１０の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段と、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 12] Further, in the communication system of Invention 12, in the communication system of Invention 10, the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. The second transmission power upper limit value acquisition means to acquire, and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal Transmission power upper limit value setting means for setting in the transmission power upper limit value table.
　〔発明１３〕　さらに、発明１３の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機の最大上限値よりも低い値を、当該無線端末機又はこれに関連する無線端末機から取得する送信電力上限値取得手段と、前記無線端末機の送信電力の上限値が、当該無線端末機又はこれに関連する無線端末機から前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備える。 [Invention 13] Further, the communication system of Invention 13 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and a value lower than the maximum upper limit value of the wireless terminal Transmission power upper limit value acquisition means acquired from a wireless terminal related thereto, and upper limit value of transmission power of the wireless terminal is determined from the wireless terminal or a wireless terminal related thereto. Wireless terminal control means for controlling the wireless terminal so as to obtain the value obtained in step (1).
　〔発明１４〕　さらに、発明１４の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機ごとに、当該無線端末機への送信電力の上限値を基準上限値よりも増加させる送信電力上限値増加手段を備える。 [Invention 14] Furthermore, the communication system of Invention 14 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and for each wireless terminal, an upper limit value of transmission power to the wireless terminal is set. Transmission power upper limit increasing means for increasing the reference upper limit is provided.
　〔発明１５〕　さらに、発明１５の通信システムは、発明１４の通信システムにおいて、前記送信電力上限値増加手段で増加させた送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備える。 [Invention 15] The communication system of Invention 15 further includes reception performance increasing means for increasing reception performance in accordance with the upper limit value of transmission power increased by the transmission power upper limit value increasing means in the communication system of Invention 14. .
　〔発明１６〕　さらに、発明１６の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、基準ゲインよりも高いゲインを有するアンテナと、対象とする無線端末機への送信電力の上限値が基準上限値よりも増加するように前記アンテナを制御するアンテナ制御手段とを備える。 [Invention 16] Furthermore, the communication system of Invention 16 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, an antenna having a gain higher than a reference gain, and a target wireless terminal. Antenna control means for controlling the antenna such that the upper limit value of the transmission power is higher than the reference upper limit value.
　〔発明１７〕　さらに、発明１７の通信システムは、発明１６の通信システムにおいて、前記アンテナ制御手段により増加した送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備える。 [Invention 17] The communication system of Invention 17 further includes reception performance increasing means for increasing reception performance in accordance with the upper limit value of transmission power increased by the antenna control means in the communication system of Invention 16.
　〔発明１８〕　さらに、発明１８の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、送信電力の上限値を低下させる送信電力上限値低下手段と、前記送信電力上限値低下手段で低下させた送信電力の上限値に応じて受信性能を低下させる受信性能低下手段とを備える。 [Invention 18] Further, the communication system of Invention 18 is a communication system connected to a plurality of wireless terminals so as to be capable of wireless communication, wherein the transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and the transmission power Receiving performance reducing means for reducing the receiving performance according to the upper limit value of transmission power reduced by the upper limit value reducing means.
　〔発明１９〕　さらに、発明１９の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、受信性能を低下させる受信性能低下手段と、前記受信性能低下手段で低下させた受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備える。 [Invention 19] Further, the communication system of Invention 19 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and is reduced by reception performance reducing means for reducing reception performance and the reception performance reducing means. Transmission power upper limit lowering means for lowering the upper limit of transmission power according to the received performance.
　〔発明２０〕　さらに、発明２０の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、送信電力の上限値を低下させる送信電力上限値低下手段と、前記送信電力上限値低下手段で低下させた送信電力の上限値に応じて受信性能を低下させた場合又は低下させたとした場合の受信状況を前記無線端末機に通知する受信状況通知手段とを備える。 [Invention 20] Furthermore, the communication system of Invention 20 is a communication system connected to a plurality of wireless terminals so as to be capable of wireless communication, wherein the transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and the transmission power Reception status notifying means for notifying the radio terminal of the reception status when the reception performance is reduced or reduced according to the upper limit value of the transmission power reduced by the upper limit value reduction means.
　〔発明２１〕　さらに、発明２１の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、受信性能を低下させた場合又は低下させたとした場合の受信状況を前記無線端末機に通知する受信状況通知手段と、前記低下させた場合又は低下させたとした場合の受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備える。 [Invention 21] Further, the communication system of Invention 21 is a communication system that is connected to a plurality of wireless terminals so as to be capable of wireless communication, and the reception status when the reception performance is reduced or reduced is described as the wireless communication system. Receiving status notifying means for notifying the terminal, and transmission power upper limit lowering means for lowering the upper limit of the transmission power in accordance with the reception performance when it is lowered or when it is lowered.
　〔発明２２〕　さらに、発明２２の通信システムは、発明１８及び１９のいずれか１の通信システムにおいて、前記受信性能低下手段は、前記無線端末機ごとに、当該無線端末機に対する受信性能を低下させる。 [Invention 22] Further, in the communication system of Invention 22, in the communication system of any one of Inventions 18 and 19, the reception performance reducing means reduces the reception performance of the wireless terminal for each wireless terminal. .
　〔発明２３〕　さらに、発明２３の通信システムは、発明１８乃至２２のいずれか１の通信システムにおいて、前記送信電力上限値低下手段は、前記無線端末機ごとに、当該無線端末機への送信電力の上限値を低下させる。 [Invention 23] Further, the communication system of Invention 23 is the communication system of any one of Inventions 18 to 22, wherein the transmission power upper limit lowering means transmits transmission power to the wireless terminal for each wireless terminal. Reduce the upper limit of.
　〔発明２４〕　さらに、発明２４の通信システムは、発明１８乃至２３のいずれか１の通信システムにおいて、受信性能によって、あらかじめ登録した電波強度より強い無線送受信における前記無線端末機との通信を確立する。 [Invention 24] Further, the communication system of Invention 24 establishes communication with the wireless terminal in wireless transmission / reception stronger than a pre-registered radio wave intensity according to the reception performance in the communication system of any one of Inventions 18 to 23. .
　〔発明２５〕　さらに、発明２５の通信システムは、発明１５、１７乃至２４のいずれか１の通信システムにおいて、前記受信性能は、受信感度である。 [Invention 25] Furthermore, the communication system of Invention 25 is the communication system of any one of Inventions 15, 17 to 24, wherein the reception performance is reception sensitivity.
　〔発明２６〕　さらに、発明２６の通信システムは、発明１５、１７乃至２４のいずれか１の通信システムにおいて、前記受信性能は、通信成立と判断する場合の基準値である。 [Invention 26] Further, in the communication system of Invention 26, in the communication system of any one of Inventions 15, 17 to 24, the reception performance is a reference value when it is determined that communication is established.
　〔発明２７〕　さらに、発明２７の通信システムは、発明１５、１７乃至２４のいずれか１の通信システムにおいて、前記受信性能は、受信データの誤り率の許容値である。 [Invention 27] Further, in the communication system of Invention 27, in the communication system of any one of Inventions 15, 17 to 24, the reception performance is an allowable value of an error rate of received data.
　〔発明２８〕　さらに、発明２８の通信システムは、複数の無線端末機と無線通信可能に接続する通信システムであって、前記無線端末機の送信電力の値を取得する送信電力値取得手段と、前記送信電力値取得手段で取得した送信電力の値が所定値以上である場合又はこれを超えた場合は、前記無線端末機との通信を禁止する通信禁止手段とを備える。 [Invention 28] Further, the communication system of Invention 28 is a communication system for connecting to a plurality of wireless terminals so as to be capable of wireless communication, and a transmission power value acquisition means for acquiring a value of transmission power of the wireless terminals, A communication prohibiting unit that prohibits communication with the wireless terminal when the transmission power value acquired by the transmission power value acquiring unit is greater than or equal to a predetermined value.
　〔発明２９〕　さらに、発明２９の通信システムは、発明２８の通信システムにおいて、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備え、前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値設定手段で設定された値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止する。 [Invention 29] Further, the communication system of Invention 29 is the communication power of Invention 28, in which the transmission power for setting a lower value than the maximum upper limit value of the wireless terminal as the upper limit value of the transmission power for each wireless terminal. An upper limit value setting means, wherein the communication prohibiting means is a value in which the transmission power value acquired by the transmission power value acquisition means for the wireless terminal is set by the transmission power upper limit value setting means for the wireless terminal. If it is above or exceeds this, communication with the wireless terminal is prohibited.
　〔発明３０〕　さらに、発明３０の通信システムは、発明２９の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 30] The communication system of Invention 30 further comprises transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal in the communication system of Invention 29, The transmission power upper limit setting means sets the value acquired by the transmission power upper limit acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　〔発明３１〕　さらに、発明３１の通信システムは、発明２９の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 31] Further, the communication system of Invention 31 is the communication system of Invention 29, wherein a transmission power upper limit for obtaining a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. The transmission power upper limit value setting means includes a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal. Set.
　〔発明３２〕　さらに、発明３２の通信システムは、発明２８の通信システムにおいて、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備え、前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値テーブルに設定された値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止する。 [Invention 32] Further, the communication system of Invention 32 is the communication power of Invention 28, in which the transmission power in which the upper limit value of the transmission power is set lower than the maximum upper limit value of each wireless terminal is set. Transmission power upper limit value storage means for storing an upper limit value table, wherein the communication prohibition means is configured such that the transmission power value acquired by the transmission power value acquisition means for the wireless terminal is the transmission power upper limit value for the wireless terminal. If the value is greater than or equal to the value set in the value table, communication with the wireless terminal is prohibited.
　〔発明３３〕　さらに、発明３３の通信システムは、発明３２の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段と、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 33] Further, the communication system of Invention 33 is the communication system of Invention 32, wherein a transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal, A transmission power upper limit value setting unit configured to set, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　〔発明３４〕　さらに、発明３４の通信システムは、発明３２の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段と、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 34] Further, in the communication system of Invention 34, in the communication system of Invention 32, a transmission power upper limit for obtaining a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. A value acquisition means and a value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal is set in the transmission power upper limit value table as an upper limit value of the transmission power of the wireless terminal. Power upper limit setting means.
　〔発明３５〕　さらに、発明３５の通信システムは、発明２８の通信システムにおいて、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、前記送信電力上限値設定手段で設定された値を前記管理装置から取得する送信電力上限値取得手段を備え、前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止する。 [Invention 35] Furthermore, in the communication system of Invention 35, the communication power of Invention 35 is a transmission power that sets a lower value than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power for each wireless terminal. An upper limit value setting unit is communicably connected to a management device, and includes a transmission power upper limit value acquisition unit that acquires a value set by the transmission power upper limit value setting unit from the management device, and the communication prohibition unit includes the communication prohibition unit, If the value of the transmission power acquired by the transmission power value acquisition unit for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition unit for the wireless terminal, the wireless terminal Prohibit communication with the machine.
　〔発明３６〕　さらに、発明３６の通信システムは、発明３５の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 36] Further, the communication system of Invention 36 is the communication system of Invention 35, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal. The transmission power upper limit value setting means sets the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal.
　〔発明３７〕　さらに、発明３７の通信システムは、発明３５の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段を備え、前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定する。 [Invention 37] Further, in the communication system of Invention 37, in the communication system of Invention 35, the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. Second transmission power upper limit value acquisition means for acquiring, wherein the transmission power upper limit setting means obtains the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal associated with the wireless terminal. Set as the upper limit of the transmission power of the terminal.
　〔発明３８〕　さらに、発明３８の通信システムは、発明２８の通信システムにおいて、前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、前記送信電力上限値テーブルに設定された値を前記管理装置から取得する送信電力上限値取得手段を備え、前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止する。 [Invention 38] Further, in the communication system of Invention 38, the communication power of Invention 38 is a transmission power in which a value lower than the maximum upper limit value of the wireless terminal is set as the upper limit value of the transmission power for each wireless terminal. A transmission power upper limit value acquisition unit configured to communicate with a management device including a transmission power upper limit value storage unit that stores an upper limit value table, and to acquire a value set in the transmission power upper limit value table from the management device; The communication prohibiting means is when the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. If this happens, communication with the wireless terminal is prohibited.
　〔発明３９〕　さらに、発明３９の通信システムは、発明３８の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段と、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段を備える。 [Invention 39] Further, the communication system of Invention 39 is the communication system of Invention 38, wherein the management device obtains a value lower than a maximum upper limit value of the wireless terminal from the wireless terminal. The transmission power upper limit value that sets the upper limit value acquisition means and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal. Setting means is provided.
　〔発明４０〕　さらに、発明４０の通信システムは、発明３８の通信システムにおいて、前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段と、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。 [Invention 40] Further, the communication system of Invention 40 is the communication system of Invention 38, in which the management device sets a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal. The second transmission power upper limit value acquisition means to acquire, and the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal Transmission power upper limit value setting means for setting in the transmission power upper limit value table.
　〔発明４１〕　さらに、発明４１の通信システムは、発明２８の通信システムにおいて、前記無線端末機の最大上限値よりも低い値を、当該無線端末機又はこれに関連する無線端末機から取得する送信電力上限値取得手段を備え、前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機又はこれに関連する無線端末機から前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止する。 [Invention 41] Further, in the communication system of Invention 41, the communication system of Invention 41 obtains a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal or a wireless terminal related thereto. A power upper limit value acquisition means, wherein the communication prohibition means is configured such that the transmission power value acquired by the transmission power value acquisition means for the wireless terminal is the transmission power from the wireless terminal or a wireless terminal related thereto. If the value is greater than or equal to the value acquired by the upper limit value acquisition means, communication with the wireless terminal is prohibited.
　〔発明４２〕　一方、上記目的を達成するために、発明４２の無線送受信機は、通信相手方の送信電力の値を取得する送信電力値取得手段と、前記送信電力値取得手段で取得した送信電力の値が所定値以上である場合又はこれを超えた場合は、前記通信相手方との通信を禁止する通信禁止手段とを備える。 [Invention 42] On the other hand, in order to achieve the above object, the wireless transceiver according to Invention 42 includes transmission power value acquisition means for acquiring a transmission power value of a communication partner, and transmission power acquired by the transmission power value acquisition means. Communication prohibiting means for prohibiting communication with the other party of communication when the value of is greater than or equal to a predetermined value.
　以上説明したように、発明１、４、７、１０又は１３の通信システムによれば、使用者等の意図で無線端末機の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 As described above, according to the communication system of the invention 1, 4, 7, 10 or 13, the power consumption can be suppressed by suppressing the upper limit value of the transmission power of the wireless terminal with the intention of the user or the like. . Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　さらに、発明１４又は１６の通信システムによれば、本通信システムの送信電力が増加すれば、無線端末機は、自己の送信電力を低下させるので、使用者等の意図で無線端末機の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 Furthermore, according to the communication system of the fourteenth or sixteenth aspect, if the transmission power of the communication system increases, the wireless terminal decreases its own transmission power, so that the transmission power of the wireless terminal is intended by the user or the like. Power consumption can be suppressed by suppressing the upper limit value. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　さらに、発明１８乃至２１の通信システムによれば、使用者等の意図で本通信システムの送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 Furthermore, according to the communication system of the invention 18 thru | or 21, power consumption can be suppressed by suppressing the upper limit of the transmission power of this communication system with a user's intention. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　さらに、発明２８の通信システムによれば、無線端末機は、所定値以上又はこれを超えた送信電力で通信を行った場合は、本通信システムと通信を行うことができないので、使用者等の意図で無線端末機の送信電力を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 Furthermore, according to the communication system of the invention 28, the wireless terminal cannot communicate with the communication system when it communicates with a transmission power that exceeds or exceeds a predetermined value. The power consumption can be suppressed by intentionally suppressing the transmission power of the wireless terminal. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　一方、発明４２の無線送受信機によれば、通信相手方は、所定値以上又はこれを超えた送信電力で通信を行った場合は、本無線送受信機と通信を行うことができないので、使用者等の意図で通信相手方の送信電力を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 On the other hand, according to the wireless transceiver of the invention 42, the communication partner cannot communicate with the wireless transceiver when communicating at a transmission power that exceeds or exceeds a predetermined value. The power consumption can be suppressed by suppressing the transmission power of the communication counterparty with the intention of. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
通信システム１００の構成を示す図である。1 is a diagram showing a configuration of a communication system 100. FIG. Ｗ－ＣＤＭＡの概略を説明するための図である。It is a figure for demonstrating the outline of W-CDMA. Ｗ－ＣＤＭＡの概略を説明するための図である。It is a figure for demonstrating the outline of W-CDMA. 通信制御情報２０のデータ構造を示す図である。3 is a diagram illustrating a data structure of communication control information 20. FIG. 通信制御情報２０のダウンロード処理を示すシーケンス図である。It is a sequence diagram which shows the download process of the communication control information 20. 適応送信電力制御処理を示すフローチャートである。It is a flowchart which shows an adaptive transmission power control process. 第２の実施の形態に係る無線基地局３の基本構成を示す図である。It is a figure which shows the basic composition of the wireless base station 3 which concerns on 2nd Embodiment. （ａ）～（ｃ）は、従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図であり、（ｄ）～（ｆ）は、送信電力の上限値のみを低下させた場合の従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図である。(A) to (c) are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal, and (d) to (f) reduce only the upper limit value of transmission power. FIG. 6 is a diagram illustrating transmission power characteristics, reception sensitivity characteristics, and reception intensity characteristics of a conventional wireless terminal in a case where （ａ）～（ｃ）は、従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図であり、（ｄ）～（ｆ）は、本実施の形態に係る無線基地局３の送信電力特性、受信感度特性及び受信強度特性を示す図である。(A) to (c) are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional radio terminal, and (d) to (f) are radio base stations according to the present embodiment. 3 is a diagram illustrating a transmission power characteristic, a reception sensitivity characteristic, and a reception intensity characteristic of FIG. 無線通信制御処理を示すフローチャートである。It is a flowchart which shows a radio | wireless communication control process.
〔第１の実施の形態〕
　次に、本発明の第１の実施の形態を説明する。
　まず、本実施の形態に係る通信システム１００の構成を説明する。 [First Embodiment]
Next, a first embodiment of the present invention will be described.
First, the configuration of the communication system 100 according to the present embodiment will be described.
　図１は、通信システム１００の構成を示す図である。
　通信システム１００は、図５に示すように、携帯電話機等の無線端末機２の使用者に対して通信サービスを提供するものであり、無線端末機２に無線接続する無線基地局（ＢＴＳ：Base Transceiver Station）３と、複数の無線基地局３に無線接続された無線ネットワーク制御装置（ＲＮＣ：Radio Network Controller）４と、無線ネットワーク制御装置４に接続された加入者交換機５と、中継用交換機６を介して加入者交換機５と接続されたオペレーションセンタ７とを有して構成されている。 FIG. 1 is a diagram illustrating a configuration of the communication system 100.
As shown in FIG. 5, the communication system 100 provides a communication service to a user of a wireless terminal 2 such as a mobile phone, and is a wireless base station (BTS: Base) that is wirelessly connected to the wireless terminal 2. Transceiver Station) 3, a radio network controller (RNC) 4 wirelessly connected to a plurality of radio base stations 3, a subscriber exchange 5 connected to the radio network controller 4, and a relay exchange 6 And an operation center 7 connected to the subscriber exchange 5 via the network.
　なお、本実施の形態では、説明を簡単にするために単一のオペレーションセンタ７及び中継用交換機６、並びに２つの加入者交換機５を図示したが、この構成に限定されるものではなく、それらの数は任意である。 In the present embodiment, for the sake of simplicity, a single operation center 7 and relay exchange 6 and two subscriber exchanges 5 are shown. However, the present invention is not limited to this configuration. The number of is arbitrary.
　通信システム１００は、我が国における移動通信システムであるセルラーシステム（ＰＤＣ：Personal Digital Cellular telecommunication system）と同様に、ゾーン方式が採用されてサービスエリア内に多数の無線ゾーンが配置されている。各々の無線ゾーンにおける通信制御は、無線基地局３により行われる。例えば、無線ゾーンＡ１に属する無線端末機２が他の通信端末と通信する場合は、無線ゾーンＡ１の通信制御を行う無線基地局３を介して加入者交換機５に接続され、加入者交換機５から中継用交換機６に接続される。また、無線端末機２は移動可能であるので、無線ゾーンＡ１からゾーン外へ移動した場合は、隣接する無線ゾーンＡ２に属するようになる。無線ゾーンＡ２に属する無線端末機２が他の通信端末と通信する場合は、無線ゾーンＡ２の通信制御を行う無線基地局３を介して加入者交換機５に接続され、加入者交換機５から中継用交換機６に接続される。このように、無線端末機２は、自己が属している無線ゾーンの通信制御を行う無線基地局３と無線回線を介して接続されることにより他の通信端末と通信を行うことができる。 The communication system 100 employs a zone method and has a large number of wireless zones arranged in a service area, as in the cellular system (PDC: Personal Digital Cellular telecommunication system) which is a mobile communication system in Japan. Communication control in each radio zone is performed by the radio base station 3. For example, when the wireless terminal 2 belonging to the wireless zone A1 communicates with another communication terminal, the wireless terminal 2 is connected to the subscriber switch 5 via the wireless base station 3 that performs communication control of the wireless zone A1, and the subscriber switch 5 Connected to relay exchange 6. Further, since the wireless terminal 2 is movable, when it moves out of the zone from the wireless zone A1, it belongs to the adjacent wireless zone A2. When the wireless terminal 2 belonging to the wireless zone A2 communicates with another communication terminal, the wireless terminal 2 is connected to the subscriber switch 5 via the wireless base station 3 that performs communication control of the wireless zone A2, and is relayed from the subscriber switch 5 Connected to the exchange 6. Thus, the wireless terminal 2 can communicate with other communication terminals by being connected to the wireless base station 3 that performs communication control of the wireless zone to which the wireless terminal 2 belongs via the wireless line.
　通信システム１００では、通信及び無線回線の制御を行うために情報チャンネル及び制御チャンネルからなる論理チャンネルが用意されている。情報チャンネルは、無線端末機２が音声信号やデータ信号を送受信するためのものであり、特定の無線端末機２に割り当てられると、通信が終了するまではその無線端末機２により占有される。また、制御チャンネルは、接続制御に必要な制御信号を転送するチャンネルであり、無線ゾーン内のすべての無線端末機２に共通に報知する情報を転送するための下りのみの片方向チャンネルである報知チャンネル（ＢＣＣＨ：Broadcasting Control CHannel）や、無線端末機２に着信を報知したり、無線端末機２からランダムに発せされる位置登録要求や発呼要求又はデータ送信要求を通知したりする共通制御チャンネル（ＣＣＣＨ：Common Control CHannel）等のチャンネルからなっている。 In the communication system 100, a logical channel including an information channel and a control channel is prepared in order to control communication and a wireless line. The information channel is for the wireless terminal 2 to transmit and receive audio signals and data signals. When the information channel is assigned to a specific wireless terminal 2, the information channel is occupied by the wireless terminal 2 until communication is completed. The control channel is a channel for transferring a control signal necessary for connection control, and is a downlink only one-way channel for transferring information commonly notified to all the wireless terminals 2 in the wireless zone. Channel (BCCH: Broadcasting Control CHannel), a common control channel for notifying the wireless terminal 2 of an incoming call, or notifying a location registration request, a call request or a data transmission request randomly issued from the wireless terminal 2 It consists of channels such as (CCCH: Common Control CHannel).
　無線端末機２は、共通制御チャンネルを使用して無線基地局３に位置登録要求を行うことにより、例えば無線ゾーンＡ１に属することになる。無線端末機２が他の通信端末と通信する場合は、無線端末機２は、通信相手先の電話番号情報を含む発呼信号を共通制御チャンネルを使用して無線基地局３に送信する。無線基地局３が発呼信号を受信すると、その発呼信号は、加入者交換機５を経由して中継用交換機６に送信される。そして、中継用交換機６は、他の加入者交換機５を介して通信相手先に着呼信号を送信し、その通信相手先と無線端末機２との間に回線を設定する。無線基地局３は、無線ゾーンＡ１における情報チャンネルの空きチャンネルを無線端末機２に割り当てる。これにより、無線端末機２は、通信相手先と通信することができる。 The wireless terminal 2 belongs to the wireless zone A1, for example, by making a location registration request to the wireless base station 3 using the common control channel. When the wireless terminal 2 communicates with another communication terminal, the wireless terminal 2 transmits a call signal including the telephone number information of the communication partner to the wireless base station 3 using the common control channel. When the radio base station 3 receives the call signal, the call signal is transmitted to the relay switch 6 via the subscriber switch 5. The relay switch 6 transmits an incoming call signal to the communication partner via the other subscriber switch 5, and sets a line between the communication partner and the wireless terminal 2. The wireless base station 3 assigns an empty channel of information channel in the wireless zone A1 to the wireless terminal 2. Thereby, the wireless terminal 2 can communicate with the communication partner.
　無線アクセス方式としては、例えば、Ｗ－ＣＤＭＡ（Wideband Code Division Multiple Access）を採用している。 For example, W-CDMA (Wideband Code Division Multiple Access) is adopted as a wireless access method.
　図２及び図３は、Ｗ－ＣＤＭＡの概略を説明するための図である。
　Ｗ－ＣＤＭＡでは、適応送信電力制御を採用している。適応送信電力制御は、信号電力対干渉電力比（ＳＩＲ：Signal-Interference Power Ratio）をベースにしている。図２に示すように、無線基地局３で逆拡散した信号をＲＡＫＥ合成した上でＳＩＲを測定し、測定値が目標値より大きい場合は無線端末機２に送信電力を低下させるコマンドを送信する。逆のケースでは、送信電力を増加させるコマンドを送信する。これを受信した無線端末機２は、コマンドに従って送信電力を制御する。この動作を０．６２５[ms]に１回という高速で実現することで、フェージングにより発生する受信レベルの変動を無線基地局３の電力制御によりなくすことができ、無線端末機２の送信電力も最小にすることができる。 2 and 3 are diagrams for explaining the outline of W-CDMA.
W-CDMA employs adaptive transmission power control. Adaptive transmission power control is based on signal power to interference power ratio (SIR). As shown in FIG. 2, the SIR is measured after RAKE combining the signal despread at the radio base station 3, and if the measured value is larger than the target value, a command for reducing the transmission power is transmitted to the radio terminal 2. . In the opposite case, a command for increasing the transmission power is transmitted. Receiving this, the wireless terminal 2 controls transmission power according to the command. By realizing this operation at a high speed of once every 0.625 [ms], the fluctuation of the reception level caused by fading can be eliminated by the power control of the radio base station 3, and the transmission power of the radio terminal 2 is also reduced. Can be minimized.
　Ｗ－ＣＤＭＡでは、図３に示すように、１つの無線基地局３がカバーする無線ゾーンにおいて同心円状に複数のセルが設定されている。図３の例では、無線基地局３がカバーする無線ゾーンＡ１において、無線基地局３に最も近い領域には、同心円状のセルＳ１が設定されている。無線基地局３に次に近い領域には、同心円状のセルＳ２が設定されている。無線基地局３から最も遠い領域には、同心円状のセルＳ３が設定されている。セルＳ１に属する３台の無線端末機２a1、２a2、２a3は、各無線端末機２a1、２a2、２a3のＳＩＲの測定値が目標値ＳＩＲ１となるように送信電力が制御されている。セルＳ２に属する３台の無線端末機２b1、２b2、２b3は、各無線端末機２b1、２b2、２b3のＳＩＲの測定値が目標値ＳＩＲ２となるように送信電力が制御されている。セルＳ３に属する３台の無線端末機２c1、２c2、２c3は、各無線端末機２c1、２c2、２c3のＳＩＲの測定値が目標値ＳＩＲ３となるように送信電力が制御されている。目標値の関係は、ＳＩＲ１＞ＳＩＲ２＞ＳＩＲ３である。 In W-CDMA, as shown in FIG. 3, a plurality of cells are concentrically set in a radio zone covered by one radio base station 3. In the example of FIG. 3, a concentric cell S <b> 1 is set in an area closest to the radio base station 3 in the radio zone A <b> 1 covered by the radio base station 3. A concentric cell S <b> 2 is set in an area next to the radio base station 3. In an area farthest from the radio base station 3, a concentric cell S3 is set. The transmission power of the three wireless terminals 2a1, 2a2, 2a3 belonging to the cell S1 is controlled so that the measured value of SIR of each wireless terminal 2a1, 2a2, 2a3 becomes the target value SIR1. The transmission power of the three wireless terminals 2b1, 2b2, 2b3 belonging to the cell S2 is controlled so that the measured value of SIR of each wireless terminal 2b1, 2b2, 2b3 becomes the target value SIR2. The transmission power of the three wireless terminals 2c1, 2c2, 2c3 belonging to the cell S3 is controlled so that the measured value of SIR of each wireless terminal 2c1, 2c2, 2c3 becomes the target value SIR3. The relationship between the target values is SIR1> SIR2> SIR3.
　本実施の形態では、無線端末機２の送信電力の上限値を低下させる制御を行うものであるが、Ｗ－ＣＤＭＡでは、例えば、セルＳ１に属する無線端末機２の送信電力の上限値を低下させる場合は、低下した送信電力の上限値でその無線端末機２が出力したときのＳＩＲの測定値が目標値ＳＩＲ１に達すれば、セルＳ１に属する無線端末機２として制御する。目標値ＳＩＲ１に達しないが目標値ＳＩＲ２に達すれば、セルＳ２に属する無線端末機２として制御する。目標値ＳＩＲ２に達しないが目標値ＳＩＲ３に達すれば、セルＳ３に属する無線端末機２として制御する。 In the present embodiment, control is performed to lower the upper limit value of the transmission power of the wireless terminal 2, but in W-CDMA, for example, the upper limit value of the transmission power of the wireless terminal 2 belonging to the cell S1 is lowered. When the SIR measurement value when the wireless terminal 2 outputs with the lower limit of the transmission power reaches the target value SIR1, the wireless terminal 2 is controlled as belonging to the cell S1. If the target value SIR2 is not reached but the target value SIR2 is reached, the wireless terminal 2 is controlled as belonging to the cell S2. If the target value SIR2 is not reached but the target value SIR3 is reached, the wireless terminal 2 is controlled as belonging to the cell S3.
　無線ネットワーク制御装置４は、無線端末機２と無線基地局３との間の無線回線を監視するほか、無線端末機２との間に無線チャネルを割り当てる等の無線制御を行う。無線ネットワーク制御装置４は、音声交換機５１及びパケット交換機５２に接続されている。無線ネットワーク制御装置４は、無線端末機２から受信した通話信号を音声交換機５１に送信するとともに、無線端末機２から受信したデータ信号をパケット交換機５２に送信する。 The wireless network control device 4 monitors a wireless line between the wireless terminal 2 and the wireless base station 3 and performs wireless control such as allocating a wireless channel with the wireless terminal 2. The wireless network control device 4 is connected to the voice switch 51 and the packet switch 52. The wireless network control device 4 transmits the call signal received from the wireless terminal 2 to the voice switch 51 and transmits the data signal received from the wireless terminal 2 to the packet switch 52.
　加入者交換機５は、音声交換機５１と、パケット交換機（ＬＳ／ＳＧＳＮ：Serving GPRS Support Node）５２とを有して構成されている。 The subscriber switch 5 includes a voice switch 51 and a packet switch (LS / SGSN: Serving GPRS Support Node) 52.
　音声交換機５１は、無線ネットワーク制御装置４から受信した通話信号を、宛先の無線端末機２が属する無線基地局３に中継するとともに、中継用音声交換機６１を介してオペレーションセンタ７から受信した通話信号を無線ネットワーク制御装置４に中継する。 The voice switch 51 relays the call signal received from the radio network controller 4 to the radio base station 3 to which the destination radio terminal 2 belongs, and also receives the call signal received from the operation center 7 via the relay voice switch 61. Is relayed to the wireless network control device 4.
　パケット交換機５２は、無線ネットワーク制御装置４から受信したデータ信号を、宛先の無線端末機２が属する無線基地局３に中継するとともに、中継用パケット交換機６２を介してオペレーションセンタ７から受信したデータ信号を無線ネットワーク制御装置４に中継する。 The packet switch 52 relays the data signal received from the wireless network control device 4 to the wireless base station 3 to which the destination wireless terminal 2 belongs, and receives the data signal received from the operation center 7 via the relay packet switch 62. Is relayed to the wireless network control device 4.
　加入者交換機５は、ビジターロケーションレジスタ（ＶＬＲ：Visitor Location Register）５３に接続されている。 The subscriber exchange 5 is connected to a visitor location register (VLR) 53.
　ビジターロケーションレジスタ５３は、加入者交換機５が管轄する在圏エリア内の無線端末機２を管理するための無線端末機２の位置登録情報を記憶するデータベースである。なお、ビジターロケーションレジスタ５３は、加入者交換機５がアクセス可能な構成であれば、加入者交換機５の外部又は内部に設けることが可能である。 The visitor location register 53 is a database that stores location registration information of the wireless terminal 2 for managing the wireless terminal 2 in the area where the subscriber exchange 5 has jurisdiction. The visitor location register 53 may be provided outside or inside the subscriber exchange 5 as long as the subscriber exchange 5 is accessible.
　加入者交換機５は、例えば、無線端末機２から位置登録要求を受信した場合に、無線端末機２の位置登録情報をホームロケーションレジスタ（ＨＬＲ：Home Location Register）７１からダウンロードしてビジターロケーションレジスタ５３に記憶し、位置登録情報に基づいて位置登録処理を行う。 For example, when receiving a location registration request from the wireless terminal 2, the subscriber exchange 5 downloads location registration information of the wireless terminal 2 from a home location register (HLR) 71 and visitor location register 53. The location registration processing is performed based on the location registration information.
　中継用交換機６は、加入者交換機５、関門用交換機９及びゲートウェイ（ＧＷ：Gateway）１０にそれぞれ接続されている。関門用交換機９は、ＰＯＩ（Point Of Interface）１２を介して他の関門用交換機１３に接続され、ゲートウェイ１０は、インターネットに接続されている。 The relay exchange 6 is connected to a subscriber exchange 5, a gateway exchange 9, and a gateway (GW) 10. The gateway exchange 9 is connected to another gateway exchange 13 via a POI (Point Of Interface) 12, and the gateway 10 is connected to the Internet.
　中継用交換機６は、中継用音声交換機６１と、中継用パケット交換機（ＧＳ／ＧＧＳＮ：Gateway GPRS Support Node）６２とを有して構成されている。 The relay switch 6 includes a relay voice switch 61 and a relay packet switch (GS / GGSN: Gateway GPRS Support Node) 62.
　中継用音声交換機６１は、音声交換機５１から受信した通話信号をオペレーションセンタ７に中継するとともに、オペレーションセンタ７から受信した通話信号を音声交換機５１に中継する。 The relay voice switch 61 relays the call signal received from the voice switch 51 to the operation center 7 and relays the call signal received from the operation center 7 to the voice switch 51.
　中継用パケット交換機６２は、パケット交換機５２から受信したデータ信号をオペレーションセンタ７に中継するとともに、オペレーションセンタ７から受信したデータ信号をパケット交換機５２に中継する。 The relay packet switch 62 relays the data signal received from the packet switch 52 to the operation center 7 and relays the data signal received from the operation center 7 to the packet switch 52.
　オペレーションセンタ７は、すべての無線端末機２に対して通信サービス、通信の利用を制限する利用制限サービス及び各無線端末機２が契約する様々なサービスを提供するサーバ機能を備える。 The operation center 7 has a server function for providing communication services, a use restriction service for restricting the use of communication, and various services contracted by each wireless terminal 2 to all the wireless terminals 2.
　オペレーションセンタ７は、ホームロケーションレジスタ７１に接続されている。
　ホームロケーションレジスタ７１は、オペレーションセンタ７が管轄する在圏エリア内のすべての無線端末機２の使用者情報（電話番号、ＩＰアドレス、認証情報等）、契約サービス情報、位置登録情報（位置登録エリア、位置登録エリアの交換機）及び無線端末機２の通信経路の設定に必要な情報を記憶するほか、無線端末機２の通信制御情報を記憶するデータベースである。なお、ホームロケーションレジスタ７１は、オペレーションセンタ７がアクセス可能な構成であれば、オペレーションセンタ７の外部又は内部に設けることが可能である。 The operation center 7 is connected to the home location register 71.
The home location register 71 includes user information (telephone number, IP address, authentication information, etc.), contract service information, location registration information (location registration area) of all wireless terminals 2 in the area where the operation center 7 has jurisdiction. In addition to storing information necessary for setting the communication path of the location registration area and the wireless terminal 2, the database stores communication control information of the wireless terminal 2. The home location register 71 can be provided outside or inside the operation center 7 as long as the operation center 7 is accessible.
　次に、通信制御情報のデータ構造を説明する。
　図４は、通信制御情報２０のデータ構造を示す図である。 Next, the data structure of communication control information will be described.
FIG. 4 is a diagram illustrating a data structure of the communication control information 20.
　ホームロケーションレジスタ７１は、図４に示すように、オペレーションセンタ７が管轄する在圏エリア内のすべての無線端末機２の通信制御情報２０を記憶している。通信制御情報２０は、無線端末機２ごとに１つのレコードが登録されている。各レコードは、無線端末機２の電話番号を登録したフィールドと、無線端末機２のＩＰアドレスを登録したフィールドと、無線端末機２の送信電力の上限値を登録したフィールドとを含む。無線端末機２の送信電力の上限値として、その無線端末機２の最大送信電力（例えば、１[Ｗ]）よりも低い値（例えば、０．１[Ｗ]）を設定することができる。ここで、最大送信電力とは、無線端末機２が性能上実現可能な送信電力の最大値、又は、無線基地局との通信品質が最低限である場合に必要な規格上の最大送信電力をいう。 As shown in FIG. 4, the home location register 71 stores communication control information 20 of all the wireless terminals 2 in the area where the operation center 7 has jurisdiction. In the communication control information 20, one record is registered for each wireless terminal 2. Each record includes a field in which the telephone number of the wireless terminal 2 is registered, a field in which the IP address of the wireless terminal 2 is registered, and a field in which the upper limit value of the transmission power of the wireless terminal 2 is registered. As the upper limit value of the transmission power of the wireless terminal 2, a value (for example, 0.1 [W]) lower than the maximum transmission power (for example, 1 [W]) of the wireless terminal 2 can be set. Here, the maximum transmission power is a maximum value of transmission power that can be realized by the wireless terminal 2 in terms of performance, or a maximum transmission power based on a standard required when communication quality with a wireless base station is minimum. Say.
　送信電力の上限値は、オペレーションセンタ７の設定処理（送信電力上限値設定手段）により設定される。送信電力の上限値は、例えば、無線端末機２の出荷時に製造者、販売者又は通信事業者が設定したり、保護者である親が子供に無線端末機２を与える際に親が設定したり、使用者が設定したりすることが考えられる。オペレーションセンタ７は、これらの者から要求を受け、対象となる無線端末機２の送信電力の上限値を設定する。 The upper limit value of transmission power is set by the setting process (transmission power upper limit setting means) of the operation center 7. The upper limit value of the transmission power is set by, for example, a manufacturer, a seller, or a telecommunications carrier when the wireless terminal 2 is shipped, or set by a parent when a parent who is a guardian gives the wireless terminal 2 to a child. Or the user may set. The operation center 7 receives a request from these persons and sets an upper limit value of transmission power of the target wireless terminal 2.
　次に、通信制御情報２０のダウンロード処理について説明する。
　図５は、通信制御情報２０のダウンロード処理を示すシーケンス図である。 Next, the download process of the communication control information 20 will be described.
FIG. 5 is a sequence diagram showing a download process of the communication control information 20.
　通信制御情報２０のダウンロード処理は、加入者交換機５が無線端末機２から位置登録要求を受信した場合に実行される処理である。なお、図５では、説明を簡単にするために、無線ネットワーク制御装置４及び中継用交換機６を省略している。 The download process of the communication control information 20 is a process executed when the subscriber exchange 5 receives a location registration request from the wireless terminal 2. In FIG. 5, the wireless network control device 4 and the relay exchange 6 are omitted for the sake of simplicity.
　加入者交換機５は、図５に示すように、無線基地局３及び無線ネットワーク制御装置４を介して無線端末機２から位置登録要求を受信すると（ステップＳ１００）、オペレーションセンタ７との間で要求元の無線端末機２の認証処理を行う（ステップＳ１０２）。認証処理が終了すると、加入者交換機５は、位置登録要求をオペレーションセンタ７に送信する（ステップＳ１０４）。 As shown in FIG. 5, when the subscriber exchange 5 receives a location registration request from the wireless terminal 2 via the wireless base station 3 and the wireless network control device 4 (step S100), the subscriber exchange 5 makes a request with the operation center 7. Authentication processing of the original wireless terminal 2 is performed (step S102). When the authentication process is completed, the subscriber exchange 5 transmits a location registration request to the operation center 7 (step S104).
　オペレーションセンタ７は、要求元の無線端末機２の電話番号に基づいて、ホームロケーションレジスタ７１に記憶されているその無線端末機２に対応する通信制御情報２０を読み出し（ステップＳ１０６）、読み出した通信制御情報２０を要求元の無線基地局３に送信する（ステップＳ１０８）。 The operation center 7 reads the communication control information 20 corresponding to the wireless terminal 2 stored in the home location register 71 based on the telephone number of the requesting wireless terminal 2 (step S106), and the read communication The control information 20 is transmitted to the requesting wireless base station 3 (step S108).
　無線基地局３は、受信した通信制御情報２０をデータベース等に記憶する（ステップＳ１１０）。 The radio base station 3 stores the received communication control information 20 in a database or the like (step S110).
　また、オペレーションセンタ７は、読み出した通信制御情報２０を位置登録情報とともに要求元の加入者交換機５に送信する（ステップＳ１１２）。 The operation center 7 transmits the read communication control information 20 to the requesting subscriber exchange 5 together with the location registration information (step S112).
　加入者交換機５は、受信した位置登録情報とともに通信制御情報２０をビジターロケーションレジスタ５３に記憶し（ステップＳ１１４）、無線基地局装置３及び無線ネットワーク制御装置４を介して要求元の無線端末機２に位置登録応答を送信する（ステップＳ１１６）。 The subscriber exchange 5 stores the communication control information 20 together with the received location registration information in the visitor location register 53 (step S114), and the requesting wireless terminal 2 via the wireless base station device 3 and the wireless network control device 4 A location registration response is transmitted to (step S116).
　次に、無線基地局３で実行される適応送信電力制御処理を説明する。
　図６は、適応送信電力制御処理を示すフローチャートである。 Next, adaptive transmission power control processing executed by the radio base station 3 will be described.
FIG. 6 is a flowchart showing the adaptive transmission power control process.
　適応送信電力制御処理は、無線アクセス制御のうちＷ－ＣＤＭＡの適応送信電力制御を行う処理であって、無線基地局３で実行されると、図６に示すように、まず、ステップＳ２００に移行する。 The adaptive transmission power control process is a process for performing W-CDMA adaptive transmission power control in the wireless access control. When the wireless base station 3 executes the adaptive transmission power control process, as shown in FIG. To do.
　ステップＳ２００では、無線アクセス制御の対象となる無線端末機２（以下、図６の説明において、対象無線端末機２という。）について設定されている送信電力の上限値Ｐmaxを、データベース等に記憶されている対象無線端末機２に対応する通信制御情報２０から読み出し、ステップＳ２０２に移行する。 In step S200, the upper limit value Pmax of the transmission power set for the wireless terminal 2 that is the target of wireless access control (hereinafter referred to as the target wireless terminal 2 in the description of FIG. 6) is stored in a database or the like. The communication control information 20 corresponding to the target wireless terminal 2 is read out, and the process proceeds to step S202.
　ステップＳ２０２では、対象無線端末機２のＳＩＲを測定し、ステップＳ２０４に移行して、ＳＩＲの測定値が目標値となるように、対象無線端末機２の送信電力の目標値Ｐtrを決定し、ステップＳ２０６に移行する。 In step S202, the SIR of the target wireless terminal 2 is measured, the process proceeds to step S204, and the target value Ptr of the transmission power of the target wireless terminal 2 is determined so that the measured value of the SIR becomes the target value. The process proceeds to step S206.
　ステップＳ２０６では、送信電力の目標値Ｐtrが対象無線端末機２の送信電力の現在値Ｐcrよりも大きいか否かを判定し、目標値Ｐtrが現在値Ｐcrよりも大きいと判定したとき(YES)は、ステップＳ２０８に移行する。 In step S206, it is determined whether or not the target value Ptr of the transmission power is larger than the current value Pcr of the transmission power of the target wireless terminal 2, and when it is determined that the target value Ptr is larger than the current value Pcr (YES). Proceeds to step S208.
　ステップＳ２０８では、送信電力の目標値Ｐtrが送信電力の上限値Ｐmaxよりも大きいか否かを判定し、目標値Ｐtrが上限値Ｐmax以下であると判定したとき(NO)は、ステップＳ２１０に移行する。 In step S208, it is determined whether or not the target value Ptr of the transmission power is larger than the upper limit value Pmax of the transmission power. If it is determined that the target value Ptr is equal to or lower than the upper limit value Pmax (NO), the process proceeds to step S210. To do.
　ステップＳ２１０では、送信電力を目標値Ｐtrまで増加させる送信電力増加コマンドを対象無線端末機２に送信し、ステップＳ２１２に移行して、送信電力の現在値Ｐcrに送信電力の目標値Ｐtrを設定し、ステップＳ２１４に移行する。 In step S210, a transmission power increase command for increasing the transmission power to the target value Ptr is transmitted to the target wireless terminal 2, and the process proceeds to step S212, where the target value Ptr of the transmission power is set as the current value Pcr of the transmission power. The process proceeds to step S214.
　ステップＳ２１４では、送信電力の目標値Ｐtrが送信電力の現在値Ｐcrよりも小さいか否かを判定し、目標値Ｐtrが現在値Ｐcrよりも小さいと判定したとき(YES)は、ステップＳ２１６に移行する。 In step S214, it is determined whether or not the target value Ptr of the transmission power is smaller than the current value Pcr of the transmission power. If it is determined that the target value Ptr is smaller than the current value Pcr (YES), the process proceeds to step S216. To do.
　ステップＳ２１６では、送信電力を目標値Ｐtrまで低下させる送信電力低下コマンドを対象無線端末機２に送信し、ステップＳ２１８に移行して、送信電力の現在値Ｐcrに送信電力の目標値Ｐtrを設定し、一連の処理を終了して元の処理に復帰させる。 In step S216, a transmission power reduction command for reducing the transmission power to the target value Ptr is transmitted to the target wireless terminal 2, and the process proceeds to step S218 to set the transmission power target value Ptr as the current value of transmission power Pcr. Then, the series of processes is terminated and the original process is restored.
　一方、ステップＳ２１４で、送信電力の目標値Ｐtrが送信電力の現在値Ｐcr以上であると判定したとき(NO)は、一連の処理を終了して元の処理に復帰させる。 On the other hand, when it is determined in step S214 that the target value Ptr of the transmission power is equal to or greater than the current value Pcr of the transmission power (NO), the series of processes is terminated and the original process is returned.
　一方、ステップＳ２０８で、送信電力の目標値Ｐtrが送信電力の上限値Ｐmaxよりも大きいと判定したとき(YES)は、ステップＳ２１４に移行する。この場合は、現在のセルから次に遠いセルに対象無線端末機２を移動させる処理を行うか、現在のセルが最も遠いセルであるならば他の無線基地局３に対象無線端末機２を移動させる処理を行う。 On the other hand, when it is determined in step S208 that the target value Ptr of transmission power is larger than the upper limit value Pmax of transmission power (YES), the process proceeds to step S214. In this case, a process of moving the target wireless terminal 2 to the next furthest cell from the current cell is performed, or if the current cell is the farthest cell, the target wireless terminal 2 is connected to another wireless base station 3. Process to move.
　一方、ステップＳ２０６で、送信電力の目標値Ｐtrが送信電力の現在値Ｐcr以下であると判定したとき(NO)は、ステップＳ２１４に移行する。 On the other hand, when it is determined in step S206 that the target value Ptr of the transmission power is equal to or less than the current value Pcr of the transmission power (NO), the process proceeds to step S214.
　次に、本実施の形態の動作を説明する。
　使用者等が無線端末機２の送信電力の上限値を低下させたい場合、使用者等は、無線端末機２その他の通信端末においてオペレーションセンタ７にアクセスし、送信電力の上限値として無線端末機２の最大送信電力よりも低い値を設定する。 Next, the operation of the present embodiment will be described.
When the user or the like wants to reduce the upper limit value of the transmission power of the wireless terminal 2, the user or the like accesses the operation center 7 in the wireless terminal 2 or other communication terminal and uses the wireless terminal as the upper limit value of the transmission power. A value lower than the maximum transmission power of 2 is set.
　オペレーションセンタ７では、使用者等から要求を受けると、設定処理により、対象となる無線端末機２の送信電力の上限値が通信制御情報２０に設定される。 When the operation center 7 receives a request from a user or the like, the upper limit value of the transmission power of the target wireless terminal 2 is set in the communication control information 20 by setting processing.
　送信電力の上限値が設定されると、無線基地局３では、無線端末機２の送信電力の上限値が、その無線端末機２について通信制御情報２０で設定された値となるように、その無線端末機２の送信電力が制御される。 When the upper limit value of the transmission power is set, in the radio base station 3, the upper limit value of the transmission power of the radio terminal 2 is set to the value set in the communication control information 20 for the radio terminal 2. The transmission power of the wireless terminal 2 is controlled.
　このようにして、本実施の形態では、オペレーションセンタ７は、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を通信制御情報２０に設定し、無線基地局３は、無線端末機２の送信電力の上限値が、その無線端末機２について通信制御情報２０で設定された値となるように、その無線端末機２の送信電力を制御する。 In this way, in this embodiment, the operation center 7 sets a value lower than the maximum transmission power of the wireless terminal 2 in the communication control information 20 as the upper limit value of the transmission power for each wireless terminal 2. The radio base station 3 controls the transmission power of the radio terminal 2 so that the upper limit value of the transmission power of the radio terminal 2 becomes the value set in the communication control information 20 for the radio terminal 2. .
　これにより、使用者等の意図で無線端末機２の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 Thus, power consumption can be suppressed by suppressing the upper limit value of the transmission power of the wireless terminal 2 with the intention of the user or the like. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　本実施の形態において、オペレーションセンタ７の設定処理は、発明１の送信電力上限値設定手段に対応し、ステップＳ２００～Ｓ２１２は、発明１の無線端末機制御手段に対応し、最大送信電力は、発明１の最大上限値に対応している。 In the present embodiment, the setting process of the operation center 7 corresponds to the transmission power upper limit setting means of the invention 1, steps S200 to S212 correspond to the wireless terminal control means of the invention 1, and the maximum transmission power is This corresponds to the maximum upper limit value of the first aspect.
〔第１の実施の形態の変形例〕
　なお、上記第１の実施の形態については、次の構成を採用することもできる。 [Modification of First Embodiment]
In addition, about the said 1st Embodiment, the following structure is also employable.
　第１の構成は、上記第１の実施の形態の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 The first configuration includes transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the configuration of the first embodiment, The upper limit value setting means sets the value acquired from the wireless terminal 2 by the transmission power upper limit value acquisition means as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第２の構成は、上記第１の実施の形態の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２に関連する無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、例えば、通信相手先の無線端末機２、又は家族、友人、社員その他の関係者間で所有する無線端末機２が含まれる。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 The second configuration is a transmission power upper limit value obtained from the wireless terminal 2 related to the wireless terminal 2 with a value lower than the maximum transmission power of the wireless terminal 2 in the configuration of the first embodiment. The transmission power upper limit setting unit includes an acquisition unit, and sets the value acquired by the transmission power upper limit acquisition unit from the radio terminal 2 related to the radio terminal 2 as the upper limit value of the transmission power of the radio terminal 2 To do. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 includes, for example, a wireless terminal 2 that is a communication partner or a wireless terminal 2 that is owned by family members, friends, employees, and other related parties. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第３の構成は、上記第１の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値テーブルに設定された値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。ここで、上記第１の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値記憶手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the third configuration, instead of the configuration of the first embodiment, transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 Transmission power upper limit value storage means for storing the upper limit value table, and the wireless terminal 2 so that the upper limit value of the transmission power of the wireless terminal 2 becomes the value set in the transmission power upper limit value table for the wireless terminal 2 Wireless terminal control means for controlling the machine 2. Here, the setting process (transmission power upper limit setting means) in the first embodiment may not be provided. The transmission power upper limit value storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第１の実施の形態と同様の効果が得られる。
　第４の構成は、上記第３の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する送信電力上限値取得手段と、無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 Even if it is such a structure, the effect similar to the said 1st Embodiment is acquired.
A fourth configuration includes a transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the third configuration, and a transmission power from the wireless terminal 2 Transmission power upper limit value setting means for setting the value acquired by the upper limit value acquisition means in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第５の構成は、上記第３の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する送信電力上限値取得手段と、無線端末機２に関連する無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 A fifth configuration is a transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2 in the third configuration, Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal 2 related to the wireless terminal 2 in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2 With. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第６の構成は、上記第１の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、送信電力上限値設定手段で設定された値を管理装置から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。すなわち、送信電力上限値設定手段を管理装置として別体に設けた構成である。ここで、管理装置は、送信電力上限値取得手段及び無線端末機制御手段と別体であればよく、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７として構成することもできる。また、送信電力上限値取得手段は、管理装置と別体であれば、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the sixth configuration, instead of the configuration of the first embodiment, transmission power for setting a lower value than the maximum transmission power of the wireless terminal 2 as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device that includes an upper limit value setting unit and acquires a value set by the transmission power upper limit value setting unit from the management device; Is provided with wireless terminal control means for controlling the wireless terminal 2 so that the wireless terminal 2 has the value acquired by the transmission power upper limit value acquiring means. That is, the transmission power upper limit setting means is provided separately as a management device. Here, the management device may be a separate entity from the transmission power upper limit value acquisition means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第１の実施の形態と同様の効果が得られる。
　第７の構成は、上記第６の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する第２送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 Even if it is such a structure, the effect similar to the said 1st Embodiment is acquired.
According to a seventh configuration, in the sixth configuration, the management device includes a second transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2, The transmission power upper limit value setting unit sets the value acquired from the wireless terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第８の構成は、上記第６の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する第２送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２に関連する無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 According to an eighth configuration, in the sixth configuration, the management apparatus obtains a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2. The transmission power upper limit setting unit includes an upper limit value acquisition unit, and the transmission power upper limit setting unit obtains the value acquired by the second transmission power upper limit acquisition unit from the wireless terminal 2 related to the wireless terminal 2 by the transmission power of the wireless terminal 2. Set as the upper limit. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. Further, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第９の構成は、上記第１の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、送信電力上限値テーブルに設定された値を管理装置から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。すなわち、送信電力上限値記憶手段を管理装置として別体に設けた構成である。ここで、管理装置は、送信電力上限値記憶手段及び無線端末機制御手段と別体であればよく、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７として構成することもできる。また、上記第１の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値記憶手段は、管理装置と別体であれば、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the ninth configuration, instead of the configuration of the first embodiment, transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device including a transmission power upper limit value storage unit that stores an upper limit value table, and that acquires a value set in the transmission power upper limit value table from the management device, and a wireless terminal Wireless terminal control means for controlling the wireless terminal 2 so that the upper limit value of the transmission power of 2 is the value acquired by the transmission power upper limit value acquisition means for the wireless terminal 2. That is, the transmission power upper limit storage means is provided separately as a management device. Here, the management device only needs to be separate from the transmission power upper limit value storage means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the setting process (transmission power upper limit setting means) in the first embodiment may not be provided. Further, the transmission power upper limit storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第１の実施の形態と同様の効果が得られる。
　第１０の構成は、上記第９の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する第２送信電力上限値取得手段と、無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段を備える。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 Even if it is such a structure, the effect similar to the said 1st Embodiment is acquired.
According to a tenth configuration, in the ninth configuration, the management device includes a second transmission power upper limit value acquisition unit configured to acquire a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2; A transmission power upper limit value setting unit is provided that sets the value acquired from the terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2 in the transmission power upper limit value table. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第１１の構成は、上記第９の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する第２送信電力上限値取得手段と、無線端末機２に関連する無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 According to an eleventh configuration, in the ninth configuration, the management device acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2. The value acquired by the second transmission power upper limit acquisition unit from the upper limit value acquisition unit and the wireless terminal 2 related to the wireless terminal 2 is stored in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. Transmission power upper limit setting means for setting. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. Further, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第１２の構成は、上記第１の実施の形態の構成に代えて、無線端末機２の最大送信電力よりも低い値を、その無線端末機２又はこれに関連する無線端末機２から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２又はこれに関連する無線端末機２から送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。ここで、上記第１の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the twelfth configuration, instead of the configuration of the first embodiment, a value lower than the maximum transmission power of the wireless terminal 2 is acquired from the wireless terminal 2 or the wireless terminal 2 related thereto. The transmission power upper limit acquisition means and the upper limit value of the transmission power of the wireless terminal 2 are the values acquired by the transmission power upper limit acquisition means from the wireless terminal 2 or the wireless terminal 2 related thereto, Wireless terminal control means for controlling the wireless terminal 2. Here, the setting process (transmission power upper limit setting means) in the first embodiment may not be provided. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第１の実施の形態と同様の効果が得られる。
〔第２の実施の形態〕
　次に、本発明の第２の実施の形態を説明する。 Even if it is such a structure, the effect similar to the said 1st Embodiment is acquired.
[Second Embodiment]
Next, a second embodiment of the present invention will be described.
　以下、移動体通信システムと本実施の形態との関係について述べる。
　携帯電話機や通信機内蔵のモバイルＰＣなどを接続する移動体通信システムの構成は、少なくとも、無線端末機２、無線基地局３、公衆通信網、「情報伝送において相手側となる端末機」（以下、通信相手方端末機という。）からなる。 Hereinafter, the relationship between the mobile communication system and the present embodiment will be described.
The configuration of a mobile communication system for connecting a mobile phone or a mobile PC with a built-in communication device includes at least a wireless terminal 2, a wireless base station 3, a public communication network, and a "terminal on the other side in information transmission" Called a communication partner terminal).
　移動体通信システムにおいて、無線端末機２から通信相手方端末機に通信を確立しようとすると、無線端末機２から無線基地局３を経由して、公衆通信網を通り、通信相手方端末機へつながるかたちとなる。 In a mobile communication system, when communication is established from a wireless terminal 2 to a communication partner terminal, the wireless terminal 2 is connected to the communication partner terminal through the wireless base station 3 through the public communication network. It becomes.
　本実施の形態において、送信電力や受信感度について、「通常の」や「通常より低い」という表現が示す状態を以下に定義する。 In the present embodiment, the states indicated by the expressions “normal” and “lower than normal” are defined below for transmission power and reception sensitivity.
　移動体通信システムにおける無線端末機２の送信電力は、使用者等が意図して所望な値へ変更することはできず、無線基地局３から届いた電波の強度を測定し、その結果に基づいて無線基地局３及び無線端末機２が無線端末機２の送信電力を決定していた。 The transmission power of the wireless terminal 2 in the mobile communication system cannot be changed to a desired value intentionally by the user or the like, and the intensity of the radio wave received from the wireless base station 3 is measured, and based on the result. Thus, the wireless base station 3 and the wireless terminal 2 have determined the transmission power of the wireless terminal 2.
　本実施の形態においては、使用者等が変更していない送信電力を「通常の送信電力」とし、対して、使用者等が意図して低く変更した送信電力を「通常より低い送信電力」としている。 In this embodiment, transmission power that has not been changed by the user or the like is referred to as “normal transmission power”, whereas transmission power that is intentionally changed by the user or the like is referred to as “transmission power lower than normal”. Yes.
　まず、本実施の形態に係る無線基地局３の構成を説明する。
　図７は、第２の実施の形態に係る無線基地局３の基本構成を示す図である。 First, the configuration of radio base station 3 according to the present embodiment will be described.
FIG. 7 is a diagram illustrating a basic configuration of the radio base station 3 according to the second embodiment.
　無線基地局３は、「アンテナ」１１１、「受信部」４１０、「送信部」４７０、「制御信号発生部」４５０、「操作手段」１１４から構成される。 The radio base station 3 includes an “antenna” 111, a “reception unit” 410, a “transmission unit” 470, a “control signal generation unit” 450, and an “operation unit” 114.
　「受信部」４１０は、少なくとも「帯域制限器」１２１、「感度制御器」１２２、「自動利得制御増幅器」１２３、「選局器」１２６、「復調器」１２８からなる。 The “receiver” 410 includes at least a “band limiter” 121, a “sensitivity controller” 122, an “automatic gain control amplifier” 123, a “channel selector” 126, and a “demodulator” 128.
　「アンテナ」１１１で受けた「受信信号」３３１は「受信部」４１０に入力される。「復調信号」３３２が「受信部」４１０から出力される。「復調信号」３３２は「基地局が伝送した情報」を含んでいる。 The “reception signal” 331 received by the “antenna” 111 is input to the “reception unit” 410. A “demodulation signal” 332 is output from the “reception unit” 410. The “demodulated signal” 332 includes “information transmitted by the base station”.
　「感度制御器」１２２は、「制御信号発生部」４５０からの「補正制御信号」３５２によって、受信感度を可変できる。 The “sensitivity controller” 122 can change the reception sensitivity by the “correction control signal” 352 from the “control signal generator” 450.
　「送信部」４７０は、少なくとも「搬送波発生器」１７１、「変調器」１７２、「送信電力制御器」１７３からなる。 The “transmitter” 470 includes at least a “carrier generator” 171, a “modulator” 172, and a “transmission power controller” 173.
　「相手へ伝送したい情報」を含んだ「変調信号」３７４は、「送信部」４７０に入力される。「送信部」４７０は、「送信信号」３７５を発生させ、「アンテナ」１１１へ出力する。 “The modulation signal” 374 including “information to be transmitted to the other party” is input to the “transmission unit” 470. “Transmission unit” 470 generates “transmission signal” 375 and outputs it to “antenna” 111.
　「送信電力制御器」１７３は、「制御信号発生部」４５０からの「補正制御信号」３５２によって、送信電力を可変できる。 The “transmission power controller” 173 can vary the transmission power by the “correction control signal” 352 from the “control signal generator” 450.
　「操作手段」１１４は、使用者等によりなされた操作に基づいて「操作信号」３１５を発生させ、「制御信号発生部」４５０へ出力する。 The “operation means” 114 generates an “operation signal” 315 based on an operation performed by the user or the like, and outputs it to the “control signal generation unit” 450.
　「操作手段」１１４からの「操作信号」３１５が「制御信号発生部」４５０に入力される。「制御信号発生部」４５０は、「操作信号」３１５の状態に基づいて決定した「補正制御信号」３５２を出力する。「制御信号発生部」４５０は、発生させた「補正制御信号」３５２を「送信部」４７０と「受信部」４１０へ共通に出力する。 The “operation signal” 315 from the “operation means” 114 is input to the “control signal generator” 450. “Control signal generator” 450 outputs “correction control signal” 352 determined based on the state of “operation signal” 315. The “control signal generator” 450 outputs the generated “correction control signal” 352 to the “transmitter” 470 and the “receiver” 410 in common.
　つまり、「操作手段」１１４の操作によって「送信部」４７０と「受信部」４１０は制御される。 That is, the “transmission unit” 470 and the “reception unit” 410 are controlled by the operation of the “operation means” 114.
　次に、本実施の形態の動作を説明する。
　初めに、無線基地局３の送信電力が「通常の送信電力」である場合の動作を説明する。 Next, the operation of the present embodiment will be described.
First, an operation when the transmission power of the radio base station 3 is “normal transmission power” will be described.
　無線基地局３の送信電力が「通常の送信電力」である場合、「制御信号発生部」４５０は、「通常の送信電力」と「通常の受信感度」を維持する値の「補正制御信号」３５２を発生させ、「送信部」４７０と「受信部」４１０へ出力している。 When the transmission power of the radio base station 3 is “normal transmission power”, the “control signal generation unit” 450 sets the “correction control signal” to a value that maintains “normal transmission power” and “normal reception sensitivity”. 352 is generated and output to the “transmission unit” 470 and the “reception unit” 410.
　「送信部」４７０の構成要素である「送信電力制御器」１７３には、「通常の送信電力」を維持する値の「補正制御信号」３５２が入力されているため、「送信部」４７０は、「通常の送信電力」によって「送信信号」３７５を出力している。 Since the “transmission power controller” 173 that is a component of the “transmission unit” 470 is input with the “correction control signal” 352 that maintains the “normal transmission power”, the “transmission unit” 470 The “transmission signal” 375 is output by “normal transmission power”.
　また、「受信部」４１０の構成要素である「感度制御器」１２２には、「通常の受信感度」を維持する値の「補正制御信号」３５２が入力されているため、「受信部」４１０は、「通常の受信感度」によって「復調信号」３３２を発生している。 In addition, since the “sensitivity controller” 122 that is a component of the “reception unit” 410 is input with the “correction control signal” 352 that maintains the “normal reception sensitivity”, the “reception unit” 410 Generates “demodulated signal” 332 according to “normal reception sensitivity”.
　次に、無線基地局３の送信電力を下げたときの不具合について説明する。
　無線端末機２から届いた電波の強度に応じて、無線基地局３は送信電力を決定している。 Next, a problem when the transmission power of the radio base station 3 is lowered will be described.
The radio base station 3 determines the transmission power according to the intensity of the radio wave received from the radio terminal 2.
　無線端末機２から届いた電波が強ければ、無線基地局３は送信電力を小さくする。逆に、無線端末機２から届いた電波が弱ければ、無線基地局３は送信電力を大きくする。 If the radio wave received from the wireless terminal 2 is strong, the wireless base station 3 reduces the transmission power. On the contrary, if the radio wave received from the wireless terminal 2 is weak, the wireless base station 3 increases the transmission power.
　通常、無線基地局３は、必要最低限の送信電力で送信している。
　例えば、無線基地局３が無線端末機２の電波を受信できているとき、単純に無線基地局３の送信電力を小さくすると、無線端末機２に届かなくなり通信ができなくなる。また、無線端末機２から見て無線基地局３の送信電力と受信感度の「通信の対称性」が崩れる。このため、無線端末機２は、無線基地局３に対して正常な運用ができなくなる。 Usually, the radio base station 3 transmits with the minimum necessary transmission power.
For example, when the radio base station 3 can receive radio waves from the radio terminal 2, if the transmission power of the radio base station 3 is simply reduced, the radio base station 3 does not reach the radio terminal 2 and cannot communicate. Further, the “communication symmetry” between the transmission power and the reception sensitivity of the wireless base station 3 as viewed from the wireless terminal 2 is broken. For this reason, the wireless terminal 2 cannot operate normally with respect to the wireless base station 3.
　このような不具合及びこれを解決する方法を従来との対比においてより具体的に説明する。 Such problems and methods for solving them will be described more specifically in comparison with the conventional case.
　図８（ａ）～（ｃ）は、従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図であり、図８（ｄ）～（ｆ）は、送信電力の上限値のみを低下させた場合の従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図である。 8A to 8C are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal, and FIGS. 8D to 8F are upper limit values of transmission power. FIG. 6 is a diagram illustrating a transmission power characteristic, a reception sensitivity characteristic, and a reception intensity characteristic of a conventional wireless terminal when only the frequency is reduced.
　図９（ａ）～（ｃ）は、従来の無線端末機の送信電力特性、受信感度特性及び受信強度特性を示す図であり、図９（ｄ）～（ｆ）は、本実施の形態に係る無線基地局３の送信電力特性、受信感度特性及び受信強度特性を示す図である。 FIGS. 9A to 9C are diagrams showing transmission power characteristics, reception sensitivity characteristics, and reception strength characteristics of a conventional wireless terminal, and FIGS. 9D to 9F are shown in this embodiment. It is a figure which shows the transmission power characteristic of this radio base station 3, a reception sensitivity characteristic, and a reception intensity characteristic.
　図８（ａ）、（ｄ）及び図９（ａ）、（ｄ）の縦軸８００は送信電力を示し、図８（ｂ）、（ｅ）及び図９（ｂ）、（ｅ）の縦軸８０１は受信感度を示し、図８（ｃ）、（ｆ）及び図８（ｃ）、（ｆ）の縦軸８０２は受信強度を示している。また、図８及び図９の各グラフの横軸８０３は、従来の無線端末機と無線基地局との間（又は無線端末機２と無線基地局３との間）の伝搬損失（≒距離）を示している。 8 (a), 8 (d), 9 (a), and 9 (d), the vertical axis 800 represents transmission power, and the vertical axis 800 in FIGS. 8 (b), (e), 9 (b), and (e). An axis 801 represents reception sensitivity, and a vertical axis 802 in FIGS. 8C and 8F and FIGS. 8C and 8F represents reception intensity. 8 and 9, the horizontal axis 803 represents a propagation loss (≈distance) between the conventional wireless terminal and the wireless base station (or between the wireless terminal 2 and the wireless base station 3). Is shown.
　従来の無線端末機では、図８（ａ）に示すように、無線基地局との間の伝搬損失が高くなるにつれて（すなわち、無線基地局から届いた電波が弱くなるにつれて）送信電力が増加するように送信電力が制御されている。送信電力は、無線端末機が発揮できる最大送信電力８０４に達すると最大送信電力８０４のまま一定となり、伝搬損失が最大送信電力８０４に達した点よりも若干高くなった点で無線基地局に信号を伝達することができなくなる。一方、受信感度は、図８（ｂ）に示すように、伝搬損失にかかわらず、無線端末機が発揮できる最大受信感度８０５に設定されているので、受信強度は、図８（ｃ）に示すように、伝搬損失が高くなるにつれて最大受信強度８１５から減少し、許容値８０６まで低下すると無線基地局からの信号を受信することができなくなる。 In the conventional radio terminal, as shown in FIG. 8A, the transmission power increases as the propagation loss with the radio base station increases (that is, as the radio wave received from the radio base station becomes weaker). Thus, the transmission power is controlled. When the transmission power reaches the maximum transmission power 804 that can be exhibited by the wireless terminal, the maximum transmission power 804 remains constant, and a signal is transmitted to the radio base station at a point where the propagation loss is slightly higher than the point at which the maximum transmission power 804 is reached. Can no longer communicate. On the other hand, as shown in FIG. 8B, the reception sensitivity is set to the maximum reception sensitivity 805 that can be exhibited by the wireless terminal regardless of the propagation loss, so the reception intensity is shown in FIG. 8C. Thus, as the propagation loss increases, the maximum reception strength 815 decreases, and when the propagation loss decreases to an allowable value 806, it becomes impossible to receive a signal from the radio base station.
　このような状態では、無線端末機が無線基地局に信号を伝達できる範囲８０７と、無線端末機が無線基地局から信号を受信できる範囲８０８とが一致しているので、「通信の対称性」が保たれている。これは、アンテナの特性や受信部の雑音指数などを加味して「通信の対称性」が保たれるようにシステム設計がなされているからである。そのため、伝搬損失が範囲８０７、８０８を超えて範囲８０９、８１０まで高くなると、無線端末機では、無線基地局と通信が確立できなくなるので「圏外」が表示される。 In such a state, the range 807 in which the wireless terminal can transmit a signal to the wireless base station and the range 808 in which the wireless terminal can receive a signal from the wireless base station are the same. Is maintained. This is because the system is designed so that “communication symmetry” is maintained in consideration of the characteristics of the antenna and the noise figure of the receiver. Therefore, when the propagation loss exceeds the ranges 807 and 808 and increases to the ranges 809 and 810, the wireless terminal cannot display communication with the wireless base station, so “out of range” is displayed.
　これに対し、送信電力の上限値のみを一定値８１１まで低下させた場合、送信電力は、図８（ｄ）に示すように、一定値８１１に達すると一定値８１１のまま一定となり、伝搬損失が一定値８１１に達した点よりも若干高くなった点で無線基地局に信号を伝達することができなくなる。したがって、無線端末機が無線基地局に信号を伝達できる範囲８１２は、送信電力の上限値を低下させない場合に比して小さくなる。一方、受信感度は、図８（ｅ）に示すように、伝搬損失にかかわらず最大受信感度８０５に設定されているので、受信強度は、図８（ｆ）に示すように、伝搬損失が高くなるにつれて最大受信強度８１５から減少し、許容値８０６まで低下すると無線基地局からの信号を受信することができなくなる。したがって、無線端末機が無線基地局から信号を受信できる範囲８０８は、送信電力の上限値を低下させない場合と同一となる。 On the other hand, when only the upper limit value of the transmission power is reduced to the constant value 811, the transmission power becomes constant at the constant value 811 when reaching the constant value 811 as shown in FIG. The signal cannot be transmitted to the radio base station at a point slightly higher than the point at which the value reaches a certain value 811. Therefore, the range 812 in which the radio terminal can transmit a signal to the radio base station is smaller than when the upper limit value of the transmission power is not lowered. On the other hand, the reception sensitivity is set to the maximum reception sensitivity 805 regardless of the propagation loss as shown in FIG. 8 (e). Therefore, the reception intensity is high in the propagation loss as shown in FIG. 8 (f). As it decreases, the maximum reception strength 815 decreases, and when it decreases to an allowable value 806, a signal from the radio base station cannot be received. Accordingly, the range 808 in which the wireless terminal can receive a signal from the wireless base station is the same as when the upper limit value of the transmission power is not reduced.
　このような状態では、無線端末機が無線基地局に信号を伝達できる範囲８１２と、無線端末機が無線基地局から信号を受信できる範囲８０８とが一致していないので、「通信の対称性」が崩れる。すなわち、伝搬損失が範囲８１２を超えるが範囲８０８を超えない範囲にある場合は、無線基地局に信号を伝達することができないが無線基地局から信号を受信することができる一方向の通信状態となるので、無線端末機では、「圏外」が表示されていないにもかかわらず、無線基地局に発信ができないという状態となる。これでは、使用者に混乱を与えるだけでなく、上記のとおり、無線基地局と基地局網は、無線端末機に対して正常な運用ができなくなる。 In such a state, the range 812 in which the wireless terminal can transmit signals to the wireless base station does not match the range 808 in which the wireless terminal can receive signals from the wireless base station. Collapses. That is, when the propagation loss exceeds the range 812 but does not exceed the range 808, a one-way communication state in which a signal cannot be transmitted to the radio base station but a signal can be received from the radio base station Therefore, the wireless terminal is in a state where it cannot make a call to the wireless base station even though “out of service area” is not displayed. This not only confuses the user, but also prevents the radio base station and the base station network from operating normally with respect to the radio terminal as described above.
　このような問題は、無線基地局についても同様に想定される。
　そこで、本実施の形態に係る無線基地局３では、図９（ｄ）に示すように、「操作手段」１１４の操作によって送信電力の上限値を一定値８１１まで低下させた場合、図９（ｅ）に示すように、低下した送信電力の上限値８１１に応じて受信感度を一定値８１３まで低下させる。例えば、送信電力の上限値を最大送信電力８０４（例えば、１[Ｗ]）から一定値８１１（例えば、０．１[Ｗ]）まで低下させた場合、受信感度を最大受信感度８０５（例えば、０[ｄＢ]）から一定値８１３（例えば、１０[ｄＢ]低下させた値）まで低下させる。受信感度が低下すれば、受信強度も、図９（ｆ）に示すように、伝搬損失が高くなるにつれて最大受信強度８１５よりも所定値（最大受信感度８０５と一定値８１３との差分に相当）低下した一定値８１６から減少し、許容値８０６まで低下すると無線端末機２からの信号を受信することができなくなる。したがって、受信強度の範囲が小さくなるので、無線基地局３が無線端末機２から信号を受信できる範囲８１４は、受信感度を低下させない場合に比して小さくなる。 Such a problem is similarly assumed for the radio base station.
Therefore, in the radio base station 3 according to the present embodiment, as shown in FIG. 9D, when the upper limit value of the transmission power is reduced to the constant value 811 by operating the “operation means” 114, As shown in e), the reception sensitivity is lowered to a constant value 813 in accordance with the reduced upper limit value 811 of the transmission power. For example, when the upper limit value of the transmission power is reduced from the maximum transmission power 804 (for example, 1 [W]) to a constant value 811 (for example, 0.1 [W]), the reception sensitivity is increased to the maximum reception sensitivity 805 (for example, 0 [dB]) to a certain value 813 (for example, a value reduced by 10 [dB]). If the reception sensitivity decreases, the reception intensity also becomes a predetermined value (corresponding to a difference between the maximum reception sensitivity 805 and the constant value 813) as the propagation loss increases as the propagation loss increases, as shown in FIG. 9 (f). If the value decreases from the lowered fixed value 816 and falls to the allowable value 806, the signal from the wireless terminal 2 cannot be received. Accordingly, since the range of the reception intensity is reduced, the range 814 in which the radio base station 3 can receive a signal from the radio terminal 2 is smaller than when the reception sensitivity is not lowered.
　これにより、無線基地局３が無線端末機２に信号を伝達できる範囲８１２と、無線基地局３が無線端末機２から信号を受信できる範囲８１４とが一致するので、「通信の対称性」が保たれる。 As a result, the range 812 in which the radio base station 3 can transmit signals to the radio terminal 2 and the range 814 in which the radio base station 3 can receive signals from the radio terminal 2 match, so that “communication symmetry” is Kept.
　なお、受信感度は、送信電力の上限値に応じて低下させればよいが、この場合、無線基地局３が無線端末機２から信号を受信できる範囲（受信範囲）が、無線基地局３が無線端末機２に信号を伝達できる範囲（伝達範囲）と一致するように低下させることが好ましい。ただし、受信範囲及び伝達範囲が必ずしも一致しなくてもよく、受信感度をまったく低下させない場合に比して、受信範囲と伝達範囲との不一致部分を小さくさえできれば、「通信の対称性」が崩れる度合いを小さくすることができるので、送信電力の上限値を低下させた場合は、受信範囲が伝達範囲と一致するか又はその不一致部分が小さくなるように受信感度を低下させればよいということができる。 The reception sensitivity may be lowered according to the upper limit value of the transmission power. In this case, the range (reception range) in which the radio base station 3 can receive signals from the radio terminal 2 is It is preferable to reduce the frequency so as to coincide with a range (transmission range) in which signals can be transmitted to the wireless terminal 2. However, the reception range and the transmission range do not necessarily need to be the same, and if the mismatch between the reception range and the transmission range can be reduced as compared with the case where the reception sensitivity is not lowered at all, the “symmetry of communication” is lost. Since the degree can be reduced, when the upper limit value of the transmission power is reduced, it is only necessary to reduce the reception sensitivity so that the reception range matches the transmission range or the mismatched portion becomes small. it can.
　次に、無線基地局３の送信電力を「通常より低い送信電力」へ変更したときの動作、及び、前記不具合を防ぐ動作を「感度制御器」１２２に可変減衰器（Variable Attenuator）を用いた例で説明する。 Next, a variable attenuator is used as the “sensitivity controller” 122 for the operation when the transmission power of the radio base station 3 is changed to “transmission power lower than normal” and the operation for preventing the above-mentioned problems. This will be explained with an example.
　ここで、通常の動作として、所定の範囲内で増減している送信電力を使用者等が手動で１／１０に変更しようとする。 Here, as a normal operation, the user or the like manually changes the transmission power increasing or decreasing within a predetermined range to 1/10.
　使用者等が「操作手段」１１４を操作すると、「制御信号発生部」４５０から「補正制御信号」３５２が、「感度制御器」１２２（可変減衰器）と「送信電力制御器」１７３に入力される。 When the user or the like operates “operation means” 114, “correction control signal” 352 is input from “control signal generator” 450 to “sensitivity controller” 122 (variable attenuator) and “transmission power controller” 173. Is done.
　ここで、「補正制御信号」３５２は、１／１０にするという値である。
　「送信電力制御器」１７３は、送信電力を本来の最大送信電力の１／１０に設定する。 Here, the “correction control signal” 352 has a value of 1/10.
The “transmission power controller” 173 sets the transmission power to 1/10 of the original maximum transmission power.
　「感度制御器」１２２（可変減衰器）は、減衰率を１／１０に設定する。
　したがって、無線基地局３は、使用者等の操作によって、送信電力を「通常より低い送信電力」へ切り替えたり、「通常の送信電力」へ戻したりが可能であり、また、その送信電力の切り替えに連動して、受信感度も「通常より低い受信感度」へ切り替わったり、「通常の受信感度」へ戻ったりする。 “Sensitivity controller” 122 (variable attenuator) sets the attenuation rate to 1/10.
Therefore, the radio base station 3 can switch the transmission power to “transmission power lower than normal” or return to “normal transmission power” by the operation of the user or the like. In conjunction with this, the reception sensitivity is switched to “reception sensitivity lower than normal” or returned to “normal reception sensitivity”.
　以下、「受信部」４１０の受信感度を下げる方法について述べる。
　「受信部」４１０の構成要素である「感度制御器」１２２は、可変減衰器、可変増幅器によって実施可能である。 Hereinafter, a method for reducing the reception sensitivity of the “reception unit” 410 will be described.
The “sensitivity controller” 122 that is a component of the “receiving unit” 410 can be implemented by a variable attenuator and a variable amplifier.
　また、これらを使用する他に、「受信部」４１０の受信感度を下げるには、「自動利得制御増幅器」１２３の利得可変範囲を狭めることで可能である。 In addition to using these, in order to reduce the receiving sensitivity of the “receiving unit” 410, it is possible to narrow the gain variable range of the “automatic gain control amplifier” 123.
　このようにして、本実施の形態では、無線基地局３は、「操作手段」１１４の操作によって送信電力の上限値を低下させ、低下した送信電力の上限値に応じて受信感度を低下させる。 Thus, in the present embodiment, the radio base station 3 decreases the upper limit value of the transmission power by operating the “operation means” 114, and decreases the reception sensitivity according to the lower limit value of the transmission power.
　これにより、使用者等の意図で無線基地局３の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。さらに、「通信の対称性」が崩れる度合いを小さくすることができる。 Thereby, power consumption can be suppressed by suppressing the upper limit value of the transmission power of the radio base station 3 with the intention of the user or the like. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened. Furthermore, the degree of “communication symmetry” breaking can be reduced.
〔第２の実施の形態の変形例〕
　なお、上記第２の実施の形態については、次の構成を採用することもできる。 [Modification of Second Embodiment]
In addition, about the said 2nd Embodiment, the following structure is also employable.
　第１の構成は、上記第２の実施の形態の構成に代えて、受信性能を低下させる受信性能低下手段と、受信性能低下手段で低下させた受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備える。 In the first configuration, instead of the configuration of the second embodiment, the reception performance reducing means for reducing the reception performance, and the upper limit value of the transmission power is reduced according to the reception performance reduced by the reception performance reducing means. And a transmission power upper limit lowering means.
　このような構成であっても、上記第２の実施の形態と同様の効果が得られる。
　第２の構成は、上記第２の実施の形態の構成に代えて、送信電力の上限値を低下させる送信電力上限値低下手段と、送信電力上限値低下手段で低下させた送信電力の上限値に応じて受信性能を低下させた場合又は低下させたとした場合の受信状況を無線端末機２に通知する受信状況通知手段とを備える。 Even if it is such a structure, the effect similar to the said 2nd Embodiment is acquired.
In the second configuration, instead of the configuration of the second embodiment, transmission power upper limit value reducing means for reducing the upper limit value of transmission power, and upper limit value of transmission power reduced by the transmission power upper limit value reducing means And a reception status notifying means for notifying the wireless terminal 2 of the reception status when the reception performance is reduced or when it is assumed to be reduced.
　このような構成であっても、上記第２の実施の形態と同様の効果が得られる。
　第３の構成は、上記第２の実施の形態の構成に代えて、受信性能を低下させた場合又は低下させたとした場合の受信状況を無線端末機２に通知する受信状況通知手段と、低下させた場合又は低下させたとした場合の受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備える。 Even if it is such a structure, the effect similar to the said 2nd Embodiment is acquired.
In the third configuration, instead of the configuration of the second embodiment, the reception status notifying means for notifying the wireless terminal 2 of the reception status when the reception performance is reduced or when the reception performance is reduced, and the decrease Transmission power upper limit lowering means for lowering the upper limit of the transmission power according to the reception performance when it is reduced or reduced.
　このような構成であっても、上記第２の実施の形態と同様の効果が得られる。
　第２の構成及び第３の構成において、無線基地局３で実際に受信性能を低下させる場合、通知内容は、低下した送信電力の上限値に応じて受信性能を低下させた場合の受信状況となり、無線基地局３では受信性能を低下させないが無線端末機２に対しては低下したように見せかける場合、通知内容は、低下した送信電力の上限値に応じて受信性能を低下させたとした場合の受信状況となる。受信状況としては、アナログ方式の通信においては、例えば、「現在の受信強度は＊＊[ｄＢ]です。」となり、デジタル方式の通信においては、例えば、「現在の誤り率は＊＊です。」となる。ただし、送信信号には、「＊＊」の情報だけ含めれば十分である。 Even if it is such a structure, the effect similar to the said 2nd Embodiment is acquired.
In the second configuration and the third configuration, when the radio base station 3 actually lowers the reception performance, the notification content is the reception status when the reception performance is reduced according to the upper limit value of the reduced transmission power. When the wireless base station 3 does not decrease the reception performance but appears to be deteriorated for the wireless terminal 2, the notification content is a case where the reception performance is decreased according to the upper limit value of the decreased transmission power. Receive status. The reception status is, for example, “Current reception strength is ** [dB]” in analog communication, and “Current error rate is **” in digital communication. It becomes. However, it is sufficient to include only the information “**” in the transmission signal.
　第４の構成は、上記第２の実施の形態の構成又は第１の構成において、受信性能低下手段は、無線端末機２ごとに、その無線端末機２に対する受信性能を低下させる。もっとも、特定又はすべての無線端末機２に対する受信性能を低下させてもよい。 In the fourth configuration, in the configuration of the second embodiment or the first configuration, the reception performance lowering unit decreases the reception performance of the radio terminal 2 for each radio terminal 2. However, the reception performance for specific or all wireless terminals 2 may be reduced.
　第５の構成は、上記第２の実施の形態の構成、又は第１の構成、第２の構成、第３の構成若しくは第４の構成において、送信電力上限値低下手段は、無線端末機２ごとに、その無線端末機２への送信電力の上限値を低下させる。もっとも、特定又はすべての無線端末機２への送信電力の上限値を低下させてもよい。 The fifth configuration is the radio terminal 2 in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, or the fourth configuration. Every time, the upper limit value of the transmission power to the wireless terminal 2 is reduced. But you may reduce the upper limit of the transmission power to the specific or all the radio | wireless terminals 2. FIG.
　第６の構成は、上記第２の実施の形態の構成、又は第１の構成、第２の構成、第３の構成、第４の構成若しくは第５の構成において、受信性能によって、あらかじめ登録した電波強度より強い無線送受信における無線端末機２との通信を確立する。 The sixth configuration is registered in advance according to the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, or the fifth configuration. Communication with the wireless terminal 2 in wireless transmission / reception stronger than the radio field intensity is established.
　第７の構成は、上記第２の実施の形態の構成、又は第１の構成、第２の構成、第３の構成、第４の構成、第５の構成若しくは第６の構成において、受信性能は、受信感度である。 The seventh configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is the reception sensitivity.
　第８の構成は、上記第２の実施の形態の構成、又は第１の構成、第２の構成、第３の構成、第４の構成、第５の構成若しくは第６の構成において、受信性能は、通信成立と判断する場合の基準値である。 The eighth configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is a reference value for determining that communication is established.
　第９の構成は、上記第２の実施の形態の構成、又は第１の構成、第２の構成、第３の構成、第４の構成、第５の構成若しくは第６の構成において、受信性能は、受信データの誤り率の許容値である。 The ninth configuration is the reception performance in the configuration of the second embodiment, or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, or the sixth configuration. Is an allowable value of the error rate of received data.
　第１０の構成は、上記第２の実施の形態の構成に代えて、無線端末機２ごとに、その無線端末機２への送信電力の上限値を基準上限値よりも増加させる送信電力上限値増加手段を備える。無線基地局３の送信電力が増加すれば、無線端末機２は、自己の送信電力を低下させるので、使用者等の意図で無線端末機２の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 In the tenth configuration, instead of the configuration of the second embodiment, for each wireless terminal 2, a transmission power upper limit value that increases the upper limit value of transmission power to the wireless terminal 2 from the reference upper limit value. An increase means is provided. If the transmission power of the wireless base station 3 increases, the wireless terminal 2 decreases its own transmission power. Therefore, the power consumption can be reduced by suppressing the upper limit value of the transmission power of the wireless terminal 2 with the intention of the user or the like. Can be suppressed. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　第１１の構成は、第１０の構成において、送信電力上限値増加手段で増加させた送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備える。受信性能については、第７の構成、第８の構成又は第９の構成を採用することができる。 The eleventh configuration includes reception performance increasing means for increasing the reception performance in accordance with the upper limit value of the transmission power increased by the transmission power upper limit value increasing means in the tenth configuration. For the reception performance, the seventh configuration, the eighth configuration, or the ninth configuration can be employed.
　このような構成であれば、「通信の対称性」が崩れる度合いを小さくすることができる。 Such a configuration can reduce the degree to which “communication symmetry” is broken.
　第１２の構成は、上記第２の実施の形態の構成に代えて、基準ゲインよりも高いゲインを有するアンテナと、対象とする無線端末機２への送信電力の上限値が基準上限値よりも増加するようにアンテナを制御するアンテナ制御手段とを備える。無線基地局３の送信電力が増加すれば、無線端末機２は、自己の送信電力を低下させるので、使用者等の意図で無線端末機２の送信電力の上限値を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 In the twelfth configuration, instead of the configuration of the second embodiment, an antenna having a gain higher than the reference gain and an upper limit value of transmission power to the target wireless terminal 2 are higher than the reference upper limit value. Antenna control means for controlling the antenna so as to increase. If the transmission power of the wireless base station 3 increases, the wireless terminal 2 decreases its own transmission power. Therefore, the power consumption can be reduced by suppressing the upper limit value of the transmission power of the wireless terminal 2 with the intention of the user or the like. Can be suppressed. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　第１３の構成は、第１２の構成において、アンテナ制御手段により増加した送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備える。受信性能については、第７の構成、第８の構成又は第９の構成を採用することができる。 The thirteenth configuration includes reception performance increasing means for increasing the reception performance according to the upper limit value of transmission power increased by the antenna control means in the twelfth configuration. For the reception performance, the seventh configuration, the eighth configuration, or the ninth configuration can be employed.
　このような構成であれば、「通信の対称性」が崩れる度合いを小さくすることができる。 Such a configuration can reduce the degree to which “communication symmetry” is broken.
　第２の実施の形態の構成、又は第２の実施の形態の変形例における第１の構成、第２の構成、第３の構成、第４の構成、第５の構成、第６の構成、第７の構成、第８の構成、第９の構成、第１０の構成、第１１の構成、第１２の構成若しくは第１３の構成において、第１の実施の形態の構成、又は第３の実施の形態の変形例における第１の構成、第２の構成、第３の構成、第４の構成、第５の構成、第６の構成、第７の構成、第８の構成、第９の構成、第１０の構成、第１１の構成若しくは第１２の構成を適用することもできる。すなわち、送信電力の上限値を設定する構成やテーブルを記憶する構成とすることができる。例えば、第２の実施の形態の変形例における第１０の構成に第１の実施の形態の変形例における第３の構成を適用した場合は、無線端末機２ごとに、その無線端末機２への無線基地局３の送信電力の上限値を設定した送信電力上限値テーブルを記憶する記憶手段を設け、送信電力上限値増加手段は、無線端末機２ごとに、その無線端末機２への送信電力の上限値を、その無線端末機２について送信電力上限値テーブルに設定された値まで増加させる構成となる。 The configuration of the second embodiment or the first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, the sixth configuration in the modification of the second embodiment, In the seventh configuration, the eighth configuration, the ninth configuration, the tenth configuration, the eleventh configuration, the twelfth configuration, or the thirteenth configuration, the configuration of the first embodiment, or the third implementation The first configuration, the second configuration, the third configuration, the fourth configuration, the fifth configuration, the sixth configuration, the seventh configuration, the eighth configuration, and the ninth configuration in the modification of the embodiment The tenth configuration, the eleventh configuration, or the twelfth configuration can also be applied. That is, a configuration for setting an upper limit value of transmission power and a configuration for storing a table can be adopted. For example, when the third configuration in the modification example of the first embodiment is applied to the tenth configuration in the modification example of the second embodiment, the wireless terminal 2 is connected to the wireless terminal 2 for each wireless terminal 2. Storage means for storing a transmission power upper limit value table in which an upper limit value of the transmission power of the wireless base station 3 is set is provided, and the transmission power upper limit value increasing means transmits the transmission power to the wireless terminal 2 for each wireless terminal 2. The upper limit value of power is increased to the value set in the transmission power upper limit value table for the wireless terminal 2.
〔第３の実施の形態〕
　次に、本発明の第３の実施の形態を説明する。なお、上記第１の実施の形態と異なる点のみを説明する。 [Third Embodiment]
Next, a third embodiment of the present invention will be described. Only differences from the first embodiment will be described.
　無線基地局３は、図６の適応送信電力制御処理に代えて、Ｗ－ＣＤＭＡにおける通常の適応送信電力制御処理を実行し、本実施の形態では、図１０のフローチャートに示す無線通信制御処理を実行する。 The radio base station 3 executes normal adaptive transmission power control processing in W-CDMA instead of the adaptive transmission power control processing in FIG. 6, and in this embodiment, the radio communication control processing shown in the flowchart in FIG. Execute.
　図１０は、無線通信制御処理を示すフローチャートである。
　無線通信制御処理は、無線基地局３で実行されると、図１０に示すように、まず、ステップＳ３００に移行する。 FIG. 10 is a flowchart showing the wireless communication control process.
When the wireless communication control process is executed in the wireless base station 3, first, the process proceeds to step S300 as shown in FIG.
　ステップＳ３００では、無線アクセス制御の対象となる無線端末機２（以下、図１０の説明において、対象無線端末機２という。）について設定されている送信電力の上限値Ｐmaxを、データベース等に記憶されている対象無線端末機２に対応する通信制御情報２０から読み出し、ステップＳ３０２に移行する。 In step S300, the upper limit value Pmax of the transmission power set for the wireless terminal 2 (hereinafter referred to as “target wireless terminal 2” in the description of FIG. 10) subject to wireless access control is stored in a database or the like. The communication control information 20 corresponding to the target wireless terminal 2 is read, and the process proceeds to step S302.
　ステップＳ３０２では、対象無線端末機２の送信電力の現在値Ｐcrを対象無線端末機２から受信し、ステップＳ３０４に移行して、送信電力の現在値Ｐcrが送信電力の上限値Ｐmaxよりも大きいか否かを判定し、現在値Ｐcrが上限値Ｐmax以下であると判定したとき(NO)は、ステップＳ３０６に移行する。 In step S302, the current value Pcr of the transmission power of the target wireless terminal 2 is received from the target wireless terminal 2, and the process proceeds to step S304, where the current value Pcr of the transmission power is larger than the upper limit value Pmax of the transmission power. If it is determined whether or not the current value Pcr is equal to or lower than the upper limit value Pmax (NO), the process proceeds to step S306.
　ステップＳ３０６では、Ｗ－ＣＤＭＡにおける通常の無線アクセス制御を行う処理を実行し、一連の処理を終了して元の処理に復帰させる。 In step S306, processing for performing normal radio access control in W-CDMA is executed, a series of processing is terminated, and the original processing is restored.
　一方、ステップＳ３０４で、送信電力の現在値Ｐcrが送信電力の上限値Ｐmaxよりも大きいと判定したとき(YES)は、一連の処理を終了して元の処理に復帰させる。 On the other hand, when it is determined in step S304 that the current value Pcr of the transmission power is larger than the upper limit value Pmax of the transmission power (YES), the series of processes is terminated and the original process is restored.
　次に、本実施の形態の動作を説明する。
　使用者等が無線端末機２の送信電力の上限値を低下させたい場合、使用者等は、無線端末機２その他の通信端末においてオペレーションセンタ７にアクセスし、送信電力の上限値として無線端末機２の最大送信電力よりも低い値を設定する。 Next, the operation of the present embodiment will be described.
When the user or the like wants to reduce the upper limit value of the transmission power of the wireless terminal 2, the user or the like accesses the operation center 7 in the wireless terminal 2 or other communication terminal and uses the wireless terminal as the upper limit value of the transmission power. A value lower than the maximum transmission power of 2 is set.
　オペレーションセンタ７では、使用者等から要求を受けると、設定処理により、対象となる無線端末機２の送信電力の上限値が通信制御情報２０に設定される。 When the operation center 7 receives a request from a user or the like, the upper limit value of the transmission power of the target wireless terminal 2 is set in the communication control information 20 by setting processing.
　送信電力の上限値が設定されると、無線基地局３では、無線端末機２の送信電力が、その無線端末機２について通信制御情報２０で設定された値よりも小さい場合に限り、無線アクセス制御が行われる。 When the upper limit value of the transmission power is set, the radio base station 3 performs radio access only when the transmission power of the radio terminal 2 is smaller than the value set in the communication control information 20 for the radio terminal 2. Control is performed.
　このようにして、本実施の形態では、無線基地局３は、無線端末機２の送信電力の現在値Ｐcrを受信し、受信した送信電力の現在値Ｐcrが、その無線端末機２について設定された送信電力の上限値Ｐmaxを超えた場合は、その無線端末機２との通信を禁止する。 Thus, in the present embodiment, the radio base station 3 receives the current value Pcr of the transmission power of the radio terminal 2, and the received current value Pcr of the transmission power is set for the radio terminal 2. If the transmission power exceeds the upper limit Pmax, communication with the wireless terminal 2 is prohibited.
　これにより、無線端末機２は、上限値Ｐmaxを超えた送信電力で通信を行った場合は、無線基地局３と通信を行うことができないので、使用者等の意図で無線端末機２の送信電力を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 Thereby, when the wireless terminal 2 communicates with the transmission power exceeding the upper limit value Pmax, the wireless terminal 2 cannot communicate with the wireless base station 3. Power consumption can be suppressed by suppressing power. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
　本実施の形態において、ステップＳ３０２は、発明２８又は２９の送信電力値取得手段に対応し、ステップＳ３００，Ｓ３０４は、発明２８又は２９の通信禁止手段に対応し、オペレーションセンタ７の設定処理は、発明２９の送信電力上限値設定手段に対応している。 In the present embodiment, step S302 corresponds to the transmission power value acquisition means of the invention 28 or 29, steps S300 and S304 correspond to the communication prohibition means of the invention 28 or 29, and the setting process of the operation center 7 is This corresponds to the transmission power upper limit setting means of the twenty-ninth aspect.
〔第３の実施の形態の変形例〕
　なお、上記第３の実施の形態については、次の構成を採用することもできる。 [Modification of Third Embodiment]
In addition, about the said 3rd Embodiment, the following structure is also employable.
　第１の構成は、上記第３の実施の形態の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 The first configuration includes transmission power upper limit value acquisition means for acquiring from the wireless terminal 2 a value lower than the maximum transmission power of the wireless terminal 2 in the configuration of the third embodiment, The upper limit value setting means sets the value acquired from the wireless terminal 2 by the transmission power upper limit value acquisition means as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第２の構成は、上記第３の実施の形態の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２に関連する無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、例えば、通信相手先の無線端末機２、又は家族、友人、社員その他の関係者間で所有する無線端末機２が含まれる。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 The second configuration is a transmission power upper limit value obtained from the wireless terminal 2 related to the wireless terminal 2 that is lower than the maximum transmission power of the wireless terminal 2 in the configuration of the third embodiment. The transmission power upper limit setting unit includes an acquisition unit, and sets the value acquired by the transmission power upper limit acquisition unit from the radio terminal 2 related to the radio terminal 2 as the upper limit value of the transmission power of the radio terminal 2 To do. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 includes, for example, a wireless terminal 2 that is a communication partner or a wireless terminal 2 that is owned by family members, friends, employees, and other related parties. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第３の構成は、上記第３の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値テーブルに設定された値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。ここで、上記第３の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値記憶手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the third configuration, instead of the configuration of the third embodiment, transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 Transmission power upper limit value storage means for storing the upper limit value table, and the wireless terminal 2 so that the upper limit value of the transmission power of the wireless terminal 2 becomes the value set in the transmission power upper limit value table for the wireless terminal 2 Wireless terminal control means for controlling the machine 2. Here, the setting process (transmission power upper limit setting means) in the third embodiment may not be provided. The transmission power upper limit value storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第３の実施の形態と同様の効果が得られる。
　第４の構成は、上記第３の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する送信電力上限値取得手段と、無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 Even with such a configuration, the same effect as in the third embodiment can be obtained.
A fourth configuration includes a transmission power upper limit value acquisition means for acquiring a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 in the third configuration, and a transmission power from the wireless terminal 2 Transmission power upper limit value setting means for setting the value acquired by the upper limit value acquisition means in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第５の構成は、上記第３の構成において、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する送信電力上限値取得手段と、無線端末機２に関連する無線端末機２から送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 A fifth configuration is a transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2 in the third configuration, Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal 2 related to the wireless terminal 2 in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2 With. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第６の構成は、上記第３の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、送信電力上限値設定手段で設定された値を管理装置から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。すなわち、送信電力上限値設定手段を管理装置として別体に設けた構成である。ここで、管理装置は、送信電力上限値取得手段及び無線端末機制御手段と別体であればよく、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７として構成することもできる。また、送信電力上限値取得手段は、管理装置と別体であれば、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the sixth configuration, instead of the configuration of the third embodiment, transmission power for setting a lower value than the maximum transmission power of the wireless terminal 2 as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device including an upper limit value setting unit and acquires the value set by the transmission power upper limit value setting unit from the management device, and an upper limit value of the transmission power of the wireless terminal 2 Is provided with wireless terminal control means for controlling the wireless terminal 2 so that the wireless terminal 2 has the value acquired by the transmission power upper limit value acquiring means. That is, the transmission power upper limit setting means is provided separately as a management device. Here, the management device may be a separate entity from the transmission power upper limit value acquisition means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第３の実施の形態と同様の効果が得られる。
　第７の構成は、上記第６の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する第２送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 Even with such a configuration, the same effect as in the third embodiment can be obtained.
According to a seventh configuration, in the sixth configuration, the management device includes a second transmission power upper limit value acquisition unit that acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2, The transmission power upper limit value setting unit sets the value acquired from the wireless terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第８の構成は、上記第６の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する第２送信電力上限値取得手段を備え、送信電力上限値設定手段は、無線端末機２に関連する無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として設定する。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。 According to an eighth configuration, in the sixth configuration, the management apparatus obtains a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2. The transmission power upper limit setting unit includes an upper limit value acquisition unit, and the transmission power upper limit setting unit obtains the value acquired by the second transmission power upper limit acquisition unit from the wireless terminal 2 related to the wireless terminal 2 by the transmission power of the wireless terminal 2. Set as the upper limit. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. Further, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7.
　第９の構成は、上記第３の実施の形態の構成に代えて、無線端末機２ごとに、送信電力の上限値としてその無線端末機２の最大送信電力よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、送信電力上限値テーブルに設定された値を管理装置から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２について送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。すなわち、送信電力上限値記憶手段を管理装置として別体に設けた構成である。ここで、管理装置は、送信電力上限値記憶手段及び無線端末機制御手段と別体であればよく、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７として構成することもできる。また、上記第３の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値記憶手段は、管理装置と別体であれば、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the ninth configuration, instead of the configuration of the third embodiment, transmission power in which a value lower than the maximum transmission power of the wireless terminal 2 is set as the upper limit value of the transmission power for each wireless terminal 2 A transmission power upper limit value acquisition unit that is communicably connected to a management device that includes a transmission power upper limit value storage unit that stores an upper limit value table, and that acquires a value set in the transmission power upper limit value table from the management device, and a wireless terminal Wireless terminal control means for controlling the wireless terminal 2 so that the upper limit value of the transmission power of 2 is the value acquired by the transmission power upper limit value acquisition means for the wireless terminal 2. That is, the transmission power upper limit storage means is provided separately as a management device. Here, the management device only needs to be separate from the transmission power upper limit value storage means and the wireless terminal control means, and the wireless base station 3, the wireless network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center. 7 can also be configured. Further, the setting process (transmission power upper limit setting means) in the third embodiment may not be provided. Further, the transmission power upper limit storage means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7 if it is separate from the management apparatus. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第３の実施の形態と同様の効果が得られる。
　第１０の構成は、上記第９の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２から取得する第２送信電力上限値取得手段と、無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段を備える。すなわち、使用者が自己の無線端末機２の送信電力の上限値を低下させたい場合に、自己の無線端末機２において送信電力の上限値を設定する構成である。ここで、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 Even with such a configuration, the same effect as in the third embodiment can be obtained.
According to a tenth configuration, in the ninth configuration, the management device includes a second transmission power upper limit value acquisition unit configured to acquire a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2; A transmission power upper limit value setting unit is provided that sets the value acquired from the terminal 2 by the second transmission power upper limit value acquisition unit as the upper limit value of the transmission power of the wireless terminal 2 in the transmission power upper limit value table. That is, when the user wants to lower the upper limit value of the transmission power of his / her wireless terminal 2, the upper limit value of the transmission power is set in the own wireless terminal 2. Here, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network controller 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第１１の構成は、上記第９の構成において、管理装置は、無線端末機２の最大送信電力よりも低い値を、その無線端末機２に関連する無線端末機２から取得する第２送信電力上限値取得手段と、無線端末機２に関連する無線端末機２から第２送信電力上限値取得手段で取得した値を、その無線端末機２の送信電力の上限値として送信電力上限値テーブルに設定する送信電力上限値設定手段とを備える。例えば、親が子供の無線端末機２の送信電力の上限値を低下させたい場合に、親の無線端末機２において送信電力の上限値を設定する構成である。ここで、無線端末機２に関連する無線端末機２としては、上記同様である。また、第２送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、送信電力上限値設定手段を設ける箇所についても同様である。 According to an eleventh configuration, in the ninth configuration, the management device acquires a value lower than the maximum transmission power of the wireless terminal 2 from the wireless terminal 2 related to the wireless terminal 2. The value acquired by the second transmission power upper limit acquisition unit from the upper limit value acquisition unit and the wireless terminal 2 related to the wireless terminal 2 is stored in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal 2. Transmission power upper limit setting means for setting. For example, when the parent wants to lower the upper limit value of the transmission power of the child radio terminal 2, the upper limit value of the transmission power is set in the parent radio terminal 2. Here, the wireless terminal 2 related to the wireless terminal 2 is the same as described above. Further, the second transmission power upper limit value acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to places where transmission power upper limit setting means is provided.
　第１２の構成は、上記第３の実施の形態の構成に代えて、無線端末機２の最大送信電力よりも低い値を、その無線端末機２又はこれに関連する無線端末機２から取得する送信電力上限値取得手段と、無線端末機２の送信電力の上限値が、その無線端末機２又はこれに関連する無線端末機２から送信電力上限値取得手段で取得した値となるように、その無線端末機２を制御する無線端末機制御手段とを備える。ここで、上記第３の実施の形態における設定処理（送信電力上限値設定手段）は設けなくてもよい。また、送信電力上限値取得手段は、無線基地局３、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７に設けることができる。また、無線端末機制御手段を設ける箇所についても同様である。 In the twelfth configuration, instead of the configuration of the third embodiment, a value lower than the maximum transmission power of the wireless terminal 2 is acquired from the wireless terminal 2 or the wireless terminal 2 related thereto. The transmission power upper limit acquisition means and the upper limit value of the transmission power of the wireless terminal 2 are the values acquired by the transmission power upper limit acquisition means from the wireless terminal 2 or the wireless terminal 2 related thereto, Wireless terminal control means for controlling the wireless terminal 2. Here, the setting process (transmission power upper limit setting means) in the third embodiment may not be provided. The transmission power upper limit acquisition means can be provided in the radio base station 3, the radio network control device 4, the subscriber exchange 5, the relay exchange 6 or the operation center 7. The same applies to the location where the wireless terminal control means is provided.
　このような構成であっても、上記第３の実施の形態と同様の効果が得られる。
　第１３の構成は、上記第３の実施の形態の構成に代えて、無線端末機２が、無線基地局３の送信電力の現在値Ｐcrを受信し、受信した送信電力の現在値Ｐcrが、その無線基地局３について設定された送信電力の上限値Ｐmaxを超えた場合は、その無線基地局３との通信を禁止する。この他にも、トランシーバのような１対１での通信の関係においても適用可能である。すなわち、無線端末機２、無線基地局３、トランシーバその他の無線送受信機について幅広く適用することが可能である。 Even with such a configuration, the same effect as in the third embodiment can be obtained.
In the thirteenth configuration, instead of the configuration of the third embodiment, the wireless terminal 2 receives the current value Pcr of the transmission power of the wireless base station 3, and the received current value Pcr of the transmission power is If the upper limit value Pmax of transmission power set for the radio base station 3 is exceeded, communication with the radio base station 3 is prohibited. In addition, the present invention can also be applied to a one-to-one communication relationship such as a transceiver. That is, the present invention can be widely applied to the wireless terminal 2, the wireless base station 3, the transceiver and other wireless transceivers.
　このような構成であれば、通信相手方は、所定値以上又はこれを超えた送信電力で通信を行った場合は、本無線送受信機と通信を行うことができないので、使用者等の意図で通信相手方の送信電力を抑制することで消費電力を抑えることができる。また、無線周波電磁界の人体への影響を弱くすることができる。 With such a configuration, the communication partner cannot communicate with the wireless transceiver when communicating with a transmission power that exceeds or exceeds a predetermined value. Power consumption can be suppressed by suppressing the transmission power of the other party. Further, the influence of the radio frequency electromagnetic field on the human body can be weakened.
〔その他の変形例〕
　なお、上記第２の実施の形態及びその変形例においては、受信した電波の強度を測定し、これに基づいて送信電力の上限値を低下させ、また、良好な通信が期待できる状態を判断していたが、デジタル方式の通信においては、受信した電波の強度を測定する代わりに、受信データの誤り率を測定し、その誤り率に基づいて受信感度を低下させ、また、良好な通信が期待できる状態を判断してもよい。 [Other variations]
In the second embodiment and its modification, the received radio wave intensity is measured, and based on this, the upper limit value of transmission power is reduced, and a state in which good communication can be expected is determined. However, in digital communication, instead of measuring the strength of the received radio wave, the error rate of the received data is measured, the reception sensitivity is reduced based on the error rate, and good communication is expected. You may judge the state which can be performed.
　また、上記第２の実施の形態及びその変形例においては、「操作手段」１１４の操作によって低下させた送信電力の上限値に応じて受信感度を低下するように構成したが、これに限らず、デジタル方式の通信においては、「操作手段」１１４の操作によって低下させた送信電力の上限値に応じて受信データの誤り率の許容値を低下するように構成することもできる。具体的には、「通常の送信電力」の状態では、受信データの誤り率が第１閾値（誤り率の許容値）以下である場合に通信成立と判断するのに対し、「通常より低い送信電力」の状態では、受信データの誤り率が第１閾値よりも低い第２閾値（誤り率の許容値）以下である場合に通信成立と判断する。 In the second embodiment and the modification thereof, the reception sensitivity is reduced according to the upper limit value of the transmission power reduced by the operation of the “operation unit” 114. However, the present invention is not limited to this. In the digital communication, the allowable value of the error rate of the received data can be reduced in accordance with the upper limit value of the transmission power reduced by the operation of the “operation means” 114. Specifically, in the “normal transmission power” state, when the error rate of the received data is equal to or lower than the first threshold (error rate allowable value), it is determined that communication is established, whereas “transmission lower than normal” In the “power” state, it is determined that communication is established when the error rate of the received data is equal to or lower than a second threshold value (allowable error rate) lower than the first threshold value.
　また、上記第２の実施の形態及びその変形例においては、「操作手段」１１４の操作によって送信電力の上限値を低下させ、低下した送信電力の上限値に応じて受信感度を低下するように構成したが、これに限らず、次の構成を採用することもできる。 In the second embodiment and its modification, the upper limit value of the transmission power is lowered by the operation of the “operation means” 114, and the reception sensitivity is lowered according to the lower limit value of the transmission power. Although it comprised, it is not restricted to this, The following structure is also employable.
　第１の構成として、送信電力の上限値の固定値として最大送信電力よりも低い値を示す固定情報を記憶する「記憶手段」を設け、「記憶手段」の固定情報によって送信電力の上限値を最大送信電力よりも低い値に固定し、固定した送信電力の上限値に応じて受信感度を最大受信感度よりも低い値に固定する。この場合、「操作手段」１１４は設けなくてもよい。 As a first configuration, a “storage unit” that stores fixed information indicating a value lower than the maximum transmission power as a fixed value of the upper limit value of transmission power is provided, and the upper limit value of the transmission power is set by the fixed information of “storage unit”. The value is fixed to a value lower than the maximum transmission power, and the reception sensitivity is fixed to a value lower than the maximum reception sensitivity according to the fixed upper limit value of the transmission power. In this case, the “operation means” 114 may not be provided.
　第２の構成として、受信性能（例えば、受信感度、通信成立と判断する場合の基準値又は受信データの誤り率の許容値）の固定値として最大受信性能よりも低い値を示す固定情報を記憶する「記憶手段」を設け、「記憶手段」の固定情報によって受信性能を最大受信性能よりも低い値に固定し、固定した受信性能に応じて送信電力の上限値を最大送信電力よりも低い値に固定する。ここで、最大受信性能とは、無線送受信機が性能上実現可能な受信性能の最大値、又は、無線基地局との通信品質が最低限である場合に必要な規格上の最大受信性能をいう。この場合、「操作手段」１１４は設けなくてもよい。 As a second configuration, fixed information indicating a value lower than the maximum reception performance is stored as a fixed value of reception performance (for example, reception sensitivity, a reference value for determining that communication is established or an allowable value of an error rate of received data). The “storage means” is provided, the reception performance is fixed to a value lower than the maximum reception performance by the fixed information of the “storage means”, and the upper limit value of the transmission power is lower than the maximum transmission power according to the fixed reception performance. To fix. Here, the maximum reception performance refers to the maximum value of the reception performance that can be realized by the wireless transceiver or the maximum reception performance based on the standard required when the communication quality with the wireless base station is the minimum. . In this case, the “operation means” 114 may not be provided.
　また、上記第２の実施の形態及びその変形例においては、単一の操作によって、送信電力の上限値の低下（以下、送信制御という。）及び受信感度の低下（以下、受信制御という。）を行う構成だけでなく、（１）複数の操作によって送信制御及び受信制御を行う構成、（２）第１の操作（１又は複数の操作）によって送信制御を行った後に第２の操作（１又は複数の操作）によって受信制御を行う構成、（３）第１の操作（１又は複数の操作）によって受信制御を行った後に第２の操作（１又は複数の操作）によって送信制御を行う構成、又は（４）所定の操作（１又は複数の操作）によって送信制御のみを行い、操作によらず、受信範囲が伝達範囲と一致するか又はその不一致部分が小さくなるように受信制御を行う構成、（５）所定の操作（１又は複数の操作）によって受信制御のみを行い、操作によらず、受信範囲が伝達範囲と一致するか又はその不一致部分が小さくなるように送信制御を行う構成を採用することもできる。また、送信制御又は受信制御のトリガとなる所定の操作は、他の機能を起動させる操作と共通としてもよい。例えば、通話音量を増減させる操作と共通とすれば、通話音量を低下させる操作に伴って送信電力の上限値を低下することができる。 In the second embodiment and its modification, a single operation reduces the upper limit value of transmission power (hereinafter referred to as transmission control) and the reception sensitivity (hereinafter referred to as reception control). (1) a configuration in which transmission control and reception control are performed by a plurality of operations, (2) a second operation (1) after transmission control is performed by a first operation (one or a plurality of operations). (3) A configuration in which reception control is performed by a first operation (one or a plurality of operations) and a transmission control is performed by a second operation (one or a plurality of operations). Or (4) A configuration in which only transmission control is performed by a predetermined operation (one or a plurality of operations), and reception control is performed so that the reception range matches the transmission range or the mismatched portion becomes small regardless of the operation. (5) Predetermined Operation performed only received controlled by (1 or more operations), regardless of the operation, the receiving range can also be adopted a configuration for performing transmission control such that, or unmatched portion thereof coincides with the range of transmission is reduced. The predetermined operation that triggers transmission control or reception control may be common to an operation that activates another function. For example, if the operation is common to the operation for increasing / decreasing the call volume, the upper limit value of the transmission power can be decreased along with the operation for decreasing the call volume.
　また、上記第２の実施の形態及びその変形例においては、図９（ａ）、（ｄ）に示すように、送信電力特性のうち送信電力の上限値だけを低下させるように構成したが、これに限らず、例えば、送信電力特性の全体を低下させるように構成することもできる。 Further, in the second embodiment and the modifications thereof, as shown in FIGS. 9A and 9D, only the upper limit value of the transmission power is reduced among the transmission power characteristics. However, the present invention is not limited to this. For example, the entire transmission power characteristic can be reduced.
　また、上記第２の実施の形態及びその変形例においては、図９（ｂ）、（ｅ）に示すように、受信感度を伝搬損失にかかわらず一定値８１３に低下するように構成したが、これに限らず、例えば、伝搬損失が高くなるにつれて最大受信感度８０５から一定値８１３まで段階的に低下させるように構成することもできる。 Further, in the second embodiment and the modification thereof, as shown in FIGS. 9B and 9E, the reception sensitivity is configured to be reduced to a constant value 813 regardless of the propagation loss. However, the present invention is not limited to this, and for example, it may be configured to gradually decrease from the maximum receiving sensitivity 805 to a constant value 813 as the propagation loss increases.
　また、上記第２の実施の形態及びその変形例において、無線基地局３は、「操作手段」１１４の操作によって送信電力の上限値を低下させ、低下した送信電力の上限値に応じて受信感度を低下させるように構成したが、図９において現在の送信電力が最大送信電力８０４である場合に低下させると、無線端末機２との通信に必要な送信電力（最大送信電力８０４）よりも低い値（一定値８１１）を上限値として設定し、送信電力を抑制する構成ということができる。 Further, in the second embodiment and the modification thereof, the radio base station 3 reduces the upper limit value of the transmission power by operating the “operation unit” 114, and the reception sensitivity according to the reduced upper limit value of the transmission power. However, if the current transmission power is the maximum transmission power 804 in FIG. 9, the transmission power is lower than the transmission power (maximum transmission power 804) required for communication with the wireless terminal 2. It can be said that the value (constant value 811) is set as the upper limit value and the transmission power is suppressed.
　また、上記第２の実施の形態及びその変形例において、無線基地局３は、送信電力の上限値を低下させ、低下した送信電力の上限値に応じて受信感度を低下させるように構成したが、これに限らず、次の構成を採用することもできる。 In the second embodiment and the modification thereof, the radio base station 3 is configured to reduce the upper limit value of the transmission power and lower the reception sensitivity according to the lower limit value of the transmission power. However, the present invention is not limited to this, and the following configuration may be employed.
　第１の構成として、無線基地局３の送信電力の上限値は、通信相手方（例えば、無線端末機２）との通信品質が最低限である場合に必要な規格上の最大送信電力よりも低い値であり、無線基地局３の受信性能は、通信相手方との通信品質が最低限である場合に必要な規格上の最大受信性能よりも低い値である。すなわち、上記第２の実施の形態及びその変形例のように送信電力の上限値及び受信感度を低下させる構成ではなく、送信電力の上限値及び受信感度がそもそも最初から低い値となっている構成である。 As a first configuration, the upper limit value of the transmission power of the wireless base station 3 is lower than the maximum transmission power according to the standard required when the communication quality with the communication partner (for example, the wireless terminal 2) is minimum. The reception performance of the wireless base station 3 is a value lower than the standard maximum reception performance required when the communication quality with the communication partner is the minimum. That is, the configuration in which the upper limit value of transmission power and the reception sensitivity are not lowered as in the second embodiment and its modification, but the upper limit value of transmission power and the reception sensitivity are originally low values from the beginning. It is.
　第２の構成として、無線基地局３の送信電力の上限値は、通信相手方（例えば、無線端末機２）との通信品質が最低限である場合に必要な規格上の最大送信電力よりも低い値であり、無線基地局３の受信性能を、通信相手方との通信品質が最低限である場合に必要な規格上の最大受信性能よりも低い値とした場合の受信状況を通信相手方に通知する。すなわち、上記第２の実施の形態及びその変形例のように送信電力の上限値及び受信感度を低下させる構成ではなく、送信電力の上限値及び受信感度がそもそも最初から低い値となっている構成である。 As a second configuration, the upper limit value of the transmission power of the wireless base station 3 is lower than the maximum transmission power according to the standard required when the communication quality with the communication partner (for example, the wireless terminal 2) is minimum. This is a value, and the communication status is notified to the communication partner when the reception performance of the radio base station 3 is set to a value lower than the maximum reception performance according to the standard required when the communication quality with the communication partner is minimum. . That is, the configuration in which the upper limit value of transmission power and the reception sensitivity are not lowered as in the second embodiment and its modification, but the upper limit value of transmission power and the reception sensitivity are originally low values from the beginning. It is.
　第３の構成として、無線基地局３の送信電力の上限値を最大上限値よりも低い値に低下させ、低下した送信電力の上限値よりも高い送信電力が通信に必要な通信相手方から受信したときは通知を行う。すなわち、無線基地局３の受信性能は必ずしも低下させる必要はないが、受信範囲が伝達範囲と不一致の領域でも、少なくとも受信したことが分かるように通知を行うものである。 As a third configuration, the upper limit value of the transmission power of the radio base station 3 is reduced to a value lower than the maximum upper limit value, and a transmission power higher than the lower limit value of the transmission power is received from the communication partner required for communication. Notify when. In other words, the reception performance of the radio base station 3 does not necessarily need to be reduced, but notification is made so that at least reception is possible even in a region where the reception range does not match the transmission range.
　第４の構成として、無線基地局３の送信電力の上限値は、通信相手方との通信品質が最低限である場合に必要な規格上の最大送信電力よりも低い値であり、送信電力の上限値よりも高い送信電力が通信に必要な通信相手方から受信したときは通知を行う。すなわち、無線基地局３の受信性能は必ずしも低下させる必要はないが、受信範囲が伝達範囲と不一致の領域でも、少なくとも受信したことが分かるように通知を行うものである。 As a fourth configuration, the upper limit value of the transmission power of the radio base station 3 is a value lower than the maximum transmission power according to the standard required when the communication quality with the communication partner is the minimum, and the upper limit of the transmission power When a transmission power higher than the value is received from a communication partner required for communication, a notification is performed. In other words, the reception performance of the radio base station 3 does not necessarily need to be reduced, but notification is made so that at least reception is possible even in a region where the reception range does not match the transmission range.
　第５の構成として、第３及び第４の構成において、送信電力の上限値以下の送信電力で通信可能な通信相手方から受信したときは、第１の通知態様（例えば、音声パターン１又は振動パターン１）で通知し、送信電力の上限値よりも高い送信電力が通信に必要な通信相手方から受信したときは、第１の通知態様とは異なる第２の通知態様（例えば、音声パターン２又は振動パターン２）で通知する。 As a fifth configuration, in the third and fourth configurations, when received from a communication partner that can communicate with transmission power equal to or lower than the upper limit value of transmission power, the first notification mode (for example, voice pattern 1 or vibration pattern) 1), when a transmission power higher than the upper limit value of the transmission power is received from a communication partner required for communication, a second notification mode (for example, voice pattern 2 or vibration) different from the first notification mode Notification in pattern 2).
　また、上記第２の実施の形態及びその変形例は、輻輳制御等にも適用することができる。具体的には、通信網の異常（例えば、通信網の輻輳、障害（機器や回線の故障を含む。）、人為的規制その他の異常）を検出する異常検出手段と、異常検出手段で異常を検出した異常時に無線基地局３の送信電力の上限値を低下させる送信電力上限値低下手段とを備える。これにより、無線基地局３がカバーする無線ゾーンが小さくなるので、無線アクセス制御の対象となる無線端末機２の台数を少なくすることができる。したがって、通信網の異常時に効率よく通信が行われ、多くの人が通信できるようになることが期待できる。 Also, the second embodiment and its modifications can be applied to congestion control and the like. Specifically, an abnormality detection means for detecting an abnormality in the communication network (for example, congestion of the communication network, failure (including equipment and line failures), artificial regulation and other abnormalities), and an abnormality detection means A transmission power upper limit lowering unit that lowers the upper limit of the transmission power of the radio base station 3 when the detected abnormality is detected. As a result, the radio zone covered by the radio base station 3 is reduced, so that the number of radio terminals 2 to be subjected to radio access control can be reduced. Therefore, it can be expected that communication is efficiently performed when a communication network is abnormal and that many people can communicate.
　また、上記第１乃至第３の実施の形態及びその変形例においては、オペレーションセンタ７にアクセスすることにより送信電力の上限値を設定するように構成したが、これに限らず、特定の電話番号に発呼することにより送信電力の上限値を設定（例えば、０９９０－ＸＸ－ＸＸＸ１なら０．１[Ｗ]に、０９９０－ＸＸ－ＸＸＸ２なら０．０１[Ｗ]に、０９９０－ＸＸ－ＸＸＸ３なら０．００１[Ｗ]に設定）するように構成することもできる。これにより、特定の電話番号に発呼するだけで設定を行うことができるので、送信電力の上限値の設定が容易となる。 In the first to third embodiments and the modifications thereof, the upper limit value of the transmission power is set by accessing the operation center 7. However, the present invention is not limited to this, and a specific telephone number is set. The upper limit value of the transmission power is set by making a call to (for example, 0 [W] for 0990-XX-XXX1, 0.01 [W] for 0990-XX-XXX2, and 0990-XX-XXX3. It is also possible to configure such that it is set to 0.001 [W]. Thereby, since the setting can be performed only by making a call to a specific telephone number, it is easy to set the upper limit value of the transmission power.
　また、上記第３の実施の形態及びその変形例において、ステップＳ３０２の処理では、対象無線端末機２の送信電力の現在値Ｐcrを対象無線端末機２から受信するように構成したが、これに限らず、対象無線端末機２の送信電力の現在値Ｐcrを適応送信電力制御処理等の内部処理で保持している場合は、対象無線端末機２の送信電力の現在値Ｐcrを無線基地局３の内部処理から取得するように構成することもできる。また、これらに限らず、対象無線端末機２に関連する無線端末機２その他の通信端末、無線ネットワーク制御装置４、加入者交換機５、中継用交換機６又はオペレーションセンタ７から取得するように構成することもできる。 Further, in the third embodiment and the modification thereof, the process of step S302 is configured to receive the current value Pcr of the transmission power of the target wireless terminal 2 from the target wireless terminal 2. Not limited to this, when the current value Pcr of the transmission power of the target wireless terminal 2 is held by internal processing such as adaptive transmission power control processing, the current value Pcr of the transmission power of the target wireless terminal 2 is stored in the wireless base station 3. It can also be configured to obtain from internal processing. Further, the present invention is not limited thereto, and the wireless terminal 2 or other communication terminals related to the target wireless terminal 2, the wireless network control device 4, the subscriber switch 5, the relay switch 6, or the operation center 7 are configured to obtain the information. You can also
　また、上記第２の実施の形態の変形例においては、第１０の構成として、無線端末機２ごとに、その無線端末機２への送信電力の上限値を基準上限値よりも増加させる送信電力上限値増加手段を備える構成としたが、これに限らず、通信網の異常（例えば、通信網の輻輳、障害（機器や回線の故障を含む。）、人為的規制その他の異常）を検出する異常検出手段を備え、送信電力上限値増加手段は、異常検出手段で異常を検出した異常時に、無線端末機２ごとに、その無線端末機２への送信電力の上限値を基準上限値よりも増加させる構成とすることもできる。 In the modification of the second embodiment, as a tenth configuration, for each wireless terminal 2, transmission power for increasing the upper limit value of transmission power to the wireless terminal 2 from the reference upper limit value is increased. Although it is configured to include the upper limit value increasing means, the present invention is not limited to this, and detects abnormalities in the communication network (for example, communication network congestion, failures (including device and line failures), human regulation, and other abnormalities). An abnormality detection means is provided, and the transmission power upper limit value increasing means sets the upper limit value of the transmission power to the wireless terminal 2 for each wireless terminal 2 when the abnormality is detected by the abnormality detection means. It can also be configured to increase.
　このような構成であれば、無線端末機２は、異常時に低消費電力で通信することができるので、異常時に通信ができない可能性を低減することができる。 With such a configuration, since the wireless terminal 2 can communicate with low power consumption in the event of an abnormality, the possibility that communication cannot be performed in the event of an abnormality can be reduced.
　また、上記第２の実施の形態の変形例においては、第１２の構成として、基準ゲインよりも高いゲインを有するアンテナと、対象とする無線端末機２への送信電力の上限値が基準上限値よりも増加するようにアンテナを制御するアンテナ制御手段とを備える構成としたが、これに限らず、通信網の異常（例えば、通信網の輻輳、障害（機器や回線の故障を含む。）、人為的規制その他の異常）を検出する異常検出手段を備え、アンテナ制御手段は、異常検出手段で異常を検出した異常時に、対象とする無線端末機２への送信電力の上限値が基準上限値よりも増加するようにアンテナを制御する構成とすることもできる。 In the modification of the second embodiment, as the twelfth configuration, the antenna having a gain higher than the reference gain and the upper limit value of the transmission power to the target wireless terminal 2 are the reference upper limit values. However, the present invention is not limited to this. However, the present invention is not limited to this, and communication network abnormalities (for example, communication network congestion and failures (including device and line failures), An anomaly detecting means for detecting an anomaly (artificial regulation and other anomalies), and the antenna control means is configured such that an upper limit value of transmission power to the target wireless terminal 2 is a reference upper limit value when an abnormality is detected by the anomaly detecting means. Alternatively, the antenna may be controlled so as to increase more.
　このような構成であれば、無線端末機２は、異常時に低消費電力で通信することができるので、異常時に通信ができない可能性を低減することができる。 With such a configuration, since the wireless terminal 2 can communicate with low power consumption in the event of an abnormality, the possibility that communication cannot be performed in the event of an abnormality can be reduced.
１００…通信システム、　２…無線端末機、　３…無線基地局装置、　４…無線ネットワーク制御装置、　５…加入者交換機、　５１…音声交換機、　５２…パケット交換機、　５３…ビジターロケーションレジスタ、　６…中継用交換機、　６１…中継用音声交換機、　６２…中継用パケット交換機、　７…オペレーションセンタ、　７１…ホームロケーションレジスタ、　９，１３…関門用交換機、　１０…ゲートウェイ、　１２…ＰＯＩ、　２０…通信制御情報、　１１１…アンテナ、　１１４…操作手段、　１２１…帯域制限器、　１２２…感度制御器、　１２３…自動利得制御増幅器、　１２６…選局器、　１２８…復調器、　１７１…搬送波発生器、　１７２…変調器、　１７３…送信電力制御器、　３１５…操作信号、　３３１…受信信号、　３３２…復調信号、　３５２…補正制御信号、　３７４…変調信号、　３７５…送信信号、　４１０…受信部、　４５０…制御信号発生部、　４７０…送信部 DESCRIPTION OF SYMBOLS 100 ... Communication system, 2 ... Wireless terminal, 3 ... Wireless base station apparatus, 4 ... Wireless network control apparatus, 5 ... Subscriber switch, 51 ... Voice switch, 52 ... Packet switch, 53 ... Visitor location register, 6 ... Relay Switch, 61 ... relay voice switch, 62 ... relay packet switch, 7 ... operation center, 71 ... home location register, 9,13 ... gateway switch, 10 ... gateway, 12 ... POI, 20 ... communication control information, 111 ... antenna, 114 ... operation means, 121 ... band limiter, 122 ... sensitivity controller, 123 ... automatic gain control amplifier, 126 ... channel selector, 128 ... demodulator, 171 ... carrier generator, 172 ... modulator, 173: Transmission power controller, 315: Operation signal, 33 ... received signal, 332 ... demodulated signal, 352 ... correction control signal, 374 ... modulation signal, 375 ... transmission signal, 410 ... receiver, 450 ... control signal generating unit, 470 ... transmission unit

Claims (42)

  1. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段と、
    　前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値設定手段で設定された値となるように、当該無線端末機を制御する無線端末機制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    Transmission power upper limit value setting means for setting a value lower than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power for each wireless terminal,
    Radio terminal control means for controlling the radio terminal so that the upper limit value of the transmission power of the radio terminal is the value set by the transmission power upper limit setting means for the radio terminal. A communication system characterized by the above.
  2. 　請求項１において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 1,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal,
    The transmission power upper limit setting means sets the value acquired from the wireless terminal by the transmission power upper limit acquisition means as the upper limit value of the transmission power of the wireless terminal.
  3. 　請求項１において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 1,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal,
    The transmission power upper limit value setting means sets the value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal. Communication system.
  4. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段と、
    　前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値テーブルに設定された値となるように、当該無線端末機を制御する無線端末機制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    Transmission power upper limit value storage means for storing a transmission power upper limit value table in which a value lower than the maximum upper limit value of the wireless terminal is set as an upper limit value of transmission power for each wireless terminal;
    Wireless terminal control means for controlling the wireless terminal such that the upper limit value of the transmission power of the wireless terminal becomes a value set in the transmission power upper limit value table for the wireless terminal. A featured communication system.
  5. 　請求項４において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段と、
    　前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 4,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal;
    Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal in the transmission power upper limit value table. A communication system.
  6. 　請求項４において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段と、
    　前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 4,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal;
    A transmission power upper limit value setting unit that sets, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal associated with the wireless terminal as the upper limit value of the transmission power of the wireless terminal. A communication system comprising:
  7. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、
    　前記送信電力上限値設定手段で設定された値を前記管理装置から取得する送信電力上限値取得手段と、
    　前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    For each wireless terminal, communicably connected to a management device including a transmission power upper limit setting means for setting a lower value than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power,
    Transmission power upper limit value acquisition means for acquiring the value set by the transmission power upper limit value setting means from the management device;
    Wireless terminal control means for controlling the wireless terminal so that the upper limit value of the transmission power of the wireless terminal becomes the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. A featured communication system.
  8. 　請求項７において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 7,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal,
    The transmission power upper limit setting means sets the value acquired from the wireless terminal by the second transmission power upper limit acquisition means as the upper limit value of the transmission power of the wireless terminal.
  9. 　請求項７において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 7,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal,
    The transmission power upper limit setting means sets the value acquired by the second transmission power upper limit acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal. A featured communication system.
  10. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、
    　前記送信電力上限値テーブルに設定された値を前記管理装置から取得する送信電力上限値取得手段と、
    　前記無線端末機の送信電力の上限値が、当該無線端末機について前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    For each wireless terminal, it is possible to communicate with a management device including a transmission power upper limit value storage unit that stores a transmission power upper limit value table in which a value lower than the maximum upper limit value of the wireless terminal is set as the upper limit value of the transmission power. connection,
    A transmission power upper limit value acquisition means for acquiring a value set in the transmission power upper limit value table from the management device;
    Wireless terminal control means for controlling the wireless terminal so that the upper limit value of the transmission power of the wireless terminal becomes the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. A featured communication system.
  11. 　請求項１０において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段と、
    　前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段を備えることを特徴とする通信システム。     In claim 10,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal;
    Transmission power upper limit value setting means for setting the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal in the transmission power upper limit value table. A featured communication system.
  12. 　請求項１０において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段と、
    　前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 10,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal;
    A transmission power upper limit value set in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal, the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal A communication system comprising: setting means.
  13. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機又はこれに関連する無線端末機から取得する送信電力上限値取得手段と、
    　前記無線端末機の送信電力の上限値が、当該無線端末機又はこれに関連する無線端末機から前記送信電力上限値取得手段で取得した値となるように、当該無線端末機を制御する無線端末機制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal or a wireless terminal related thereto,
    A radio terminal that controls the radio terminal so that the upper limit value of the transmission power of the radio terminal is the value acquired by the transmission power upper limit value acquisition unit from the radio terminal or a radio terminal related thereto A communication system comprising a machine control means.
  14. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機ごとに、当該無線端末機への送信電力の上限値を基準上限値よりも増加させる送信電力上限値増加手段を備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    A communication system, comprising: a transmission power upper limit value increasing means for increasing an upper limit value of transmission power to the wireless terminal for each wireless terminal than a reference upper limit value.
  15. 　請求項１４において、
    　前記送信電力上限値増加手段で増加させた送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備えることを特徴とする通信システム。     In claim 14,
    A communication system comprising: reception performance increasing means for increasing reception performance in accordance with an upper limit value of transmission power increased by said transmission power upper limit value increasing means.
  16. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　基準ゲインよりも高いゲインを有するアンテナと、
    　対象とする無線端末機への送信電力の上限値が基準上限値よりも増加するように前記アンテナを制御するアンテナ制御手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    An antenna having a gain higher than a reference gain;
    A communication system comprising: antenna control means for controlling the antenna such that an upper limit value of transmission power to a target wireless terminal increases from a reference upper limit value.
  17. 　請求項１６において、
    　前記アンテナ制御手段により増加した送信電力の上限値に応じて受信性能を増加させる受信性能増加手段を備えることを特徴とする通信システム。     In claim 16,
    A communication system comprising: reception performance increasing means for increasing reception performance in accordance with an upper limit value of transmission power increased by the antenna control means.
  18. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　送信電力の上限値を低下させる送信電力上限値低下手段と、
    　前記送信電力上限値低下手段で低下させた送信電力の上限値に応じて受信性能を低下させる受信性能低下手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    A transmission power upper limit lowering means for lowering the upper limit of transmission power;
    A communication system comprising: reception performance reducing means for reducing reception performance in accordance with an upper limit value of transmission power reduced by the transmission power upper limit value reducing means.
  19. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　受信性能を低下させる受信性能低下手段と、
    　前記受信性能低下手段で低下させた受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    Means for lowering reception performance to reduce reception performance;
    A communication system comprising: a transmission power upper limit value reducing means for reducing an upper limit value of transmission power in accordance with the reception performance reduced by the reception performance reducing means.
  20. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　送信電力の上限値を低下させる送信電力上限値低下手段と、
    　前記送信電力上限値低下手段で低下させた送信電力の上限値に応じて受信性能を低下させた場合又は低下させたとした場合の受信状況を前記無線端末機に通知する受信状況通知手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    A transmission power upper limit lowering means for lowering the upper limit of transmission power;
    Reception status notifying means for notifying the radio terminal of the reception status when the reception performance is reduced or reduced according to the upper limit value of the transmission power reduced by the transmission power upper limit value reduction means. A communication system characterized by the above.
  21. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　受信性能を低下させた場合又は低下させたとした場合の受信状況を前記無線端末機に通知する受信状況通知手段と、
    　前記低下させた場合又は低下させたとした場合の受信性能に応じて送信電力の上限値を低下させる送信電力上限値低下手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    A reception status notification means for notifying the wireless terminal of the reception status when the reception performance is reduced or when it is reduced;
    A communication system comprising: a transmission power upper limit value reduction means for reducing the upper limit value of transmission power in accordance with the reception performance when reduced or when reduced.
  22. 　請求項１８及び１９のいずれか１項において、
    　前記受信性能低下手段は、前記無線端末機ごとに、当該無線端末機に対する受信性能を低下させることを特徴とする通信システム。     In any one of Claims 18 and 19,
    The communication performance reducing means reduces the reception performance of the wireless terminal for each wireless terminal.
  23. 　請求項１８乃至２２のいずれか１項において、
    　前記送信電力上限値低下手段は、前記無線端末機ごとに、当該無線端末機への送信電力の上限値を低下させることを特徴とする通信システム。     In any one of Claims 18 thru | or 22,
    The transmission power upper limit value lowering unit lowers the upper limit value of transmission power to the radio terminal for each radio terminal.
  24. 　請求項１８乃至２３のいずれか１項において、
    　受信性能によって、あらかじめ登録した電波強度より強い無線送受信における前記無線端末機との通信を確立することを特徴とする通信システム。     24. In any one of claims 18 to 23.
    A communication system for establishing communication with the wireless terminal in wireless transmission / reception stronger than a pre-registered radio wave intensity according to reception performance.
  25. 　請求項１５、１７乃至２４のいずれか１項において、
    　前記受信性能は、受信感度であることを特徴とする通信システム。     25. In any one of claims 15, 17 to 24,
    The communication system, wherein the reception performance is reception sensitivity.
  26. 　請求項１５、１７乃至２４のいずれか１項において、
    　前記受信性能は、通信成立と判断する場合の基準値であることを特徴とする通信システム。     25. In any one of claims 15, 17 to 24,
    The communication system according to claim 1, wherein the reception performance is a reference value when it is determined that communication is established.
  27. 　請求項１５、１７乃至２４のいずれか１項において、
    　前記受信性能は、受信データの誤り率の許容値であることを特徴とする通信システム。     25. In any one of claims 15, 17 to 24,
    The communication system according to claim 1, wherein the reception performance is an allowable value of an error rate of received data.
  28. 　複数の無線端末機と無線通信可能に接続する通信システムであって、
    　前記無線端末機の送信電力の値を取得する送信電力値取得手段と、
    　前記送信電力値取得手段で取得した送信電力の値が所定値以上である場合又はこれを超えた場合は、前記無線端末機との通信を禁止する通信禁止手段とを備えることを特徴とする通信システム。     A communication system for wireless communication with a plurality of wireless terminals,
    Transmission power value acquisition means for acquiring a value of transmission power of the wireless terminal;
    A communication prohibiting means for prohibiting communication with the wireless terminal when the value of the transmission power acquired by the transmission power value acquiring means is equal to or greater than a predetermined value; system.
  29. 　請求項２８において、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備え、
    　前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値設定手段で設定された値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止することを特徴とする通信システム。     In claim 28,
    Transmission power upper limit setting means for setting a lower value than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power for each wireless terminal,
    The communication prohibiting means, or the transmission power value acquired by the transmission power value acquisition means for the wireless terminal is greater than or equal to the value set by the transmission power upper limit setting means for the wireless terminal A communication system characterized by prohibiting communication with the wireless terminal when exceeding.
  30. 　請求項２９において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 29,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal,
    The transmission power upper limit setting means sets the value acquired from the wireless terminal by the transmission power upper limit acquisition means as the upper limit value of the transmission power of the wireless terminal.
  31. 　請求項２９において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 29,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal,
    The transmission power upper limit value setting means sets the value acquired by the transmission power upper limit value acquisition means from a wireless terminal related to the wireless terminal as an upper limit value of the transmission power of the wireless terminal. Communication system.
  32. 　請求項２８において、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備え、
    　前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値テーブルに設定された値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止することを特徴とする通信システム。     In claim 28,
    Transmission power upper limit storage means for storing a transmission power upper limit value table in which a value lower than the maximum upper limit value of the wireless terminal is set as an upper limit value of the transmission power for each wireless terminal,
    The communication prohibiting means, when the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal is equal to or more than the value set in the transmission power upper limit table for the wireless terminal A communication system that prohibits communication with the wireless terminal in the case of failure.
  33. 　請求項３２において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する送信電力上限値取得手段と、
    　前記無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 32,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal;
    Transmission power upper limit value setting means for setting the value acquired by the transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal in the transmission power upper limit value table. A communication system.
  34. 　請求項３２において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する送信電力上限値取得手段と、
    　前記無線端末機に関連する無線端末機から前記送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 32,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal;
    A transmission power upper limit value setting unit that sets, in the transmission power upper limit value table, the value acquired by the transmission power upper limit value acquisition unit from the wireless terminal associated with the wireless terminal as the upper limit value of the transmission power of the wireless terminal. A communication system comprising:
  35. 　請求項２８において、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定する送信電力上限値設定手段を備える管理装置と通信可能に接続し、
    　前記送信電力上限値設定手段で設定された値を前記管理装置から取得する送信電力上限値取得手段を備え、
    　前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止することを特徴とする通信システム。     In claim 28,
    For each wireless terminal, communicably connected to a management device including a transmission power upper limit setting means for setting a lower value than the maximum upper limit value of the wireless terminal as an upper limit value of the transmission power,
    Transmission power upper limit value acquisition means for acquiring the value set by the transmission power upper limit value setting means from the management device,
    The communication prohibiting means is when the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. A communication system that prohibits communication with the wireless terminal in the case of failure.
  36. 　請求項３５において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 35,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal,
    The transmission power upper limit setting means sets the value acquired from the wireless terminal by the second transmission power upper limit acquisition means as the upper limit value of the transmission power of the wireless terminal.
  37. 　請求項３５において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段を備え、
    　前記送信電力上限値設定手段は、前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として設定することを特徴とする通信システム。     In claim 35,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than a maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal,
    The transmission power upper limit setting means sets the value acquired by the second transmission power upper limit acquisition means from the wireless terminal related to the wireless terminal as the upper limit value of the transmission power of the wireless terminal. A featured communication system.
  38. 　請求項２８において、
    　前記無線端末機ごとに、送信電力の上限値として当該無線端末機の最大上限値よりも低い値を設定した送信電力上限値テーブルを記憶する送信電力上限値記憶手段を備える管理装置と通信可能に接続し、
    　前記送信電力上限値テーブルに設定された値を前記管理装置から取得する送信電力上限値取得手段を備え、
    　前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機について前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止することを特徴とする通信システム。     In claim 28,
    For each wireless terminal, it is possible to communicate with a management device including a transmission power upper limit value storage unit that stores a transmission power upper limit value table in which a value lower than the maximum upper limit value of the wireless terminal is set as the upper limit value of the transmission power. connection,
    A transmission power upper limit value acquisition means for acquiring a value set in the transmission power upper limit value table from the management device;
    The communication prohibiting means is when the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal is greater than or equal to the value acquired by the transmission power upper limit value acquisition means for the wireless terminal. A communication system that prohibits communication with the wireless terminal in the case of failure.
  39. 　請求項３８において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機から取得する第２送信電力上限値取得手段と、
    　前記無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段を備えることを特徴とする通信システム。     In claim 38,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal;
    Transmission power upper limit value setting means for setting the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal as the upper limit value of the transmission power of the wireless terminal in the transmission power upper limit value table. A featured communication system.
  40. 　請求項３８において、
    　前記管理装置は、前記無線端末機の最大上限値よりも低い値を、当該無線端末機に関連する無線端末機から取得する第２送信電力上限値取得手段と、
    　前記無線端末機に関連する無線端末機から前記第２送信電力上限値取得手段で取得した値を、当該無線端末機の送信電力の上限値として前記送信電力上限値テーブルに設定する送信電力上限値設定手段とを備えることを特徴とする通信システム。     In claim 38,
    The management device includes second transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from a wireless terminal related to the wireless terminal;
    A transmission power upper limit value set in the transmission power upper limit value table as the upper limit value of the transmission power of the wireless terminal, the value acquired by the second transmission power upper limit value acquisition means from the wireless terminal related to the wireless terminal A communication system comprising: setting means.
  41. 　請求項２８において、
    　前記無線端末機の最大上限値よりも低い値を、当該無線端末機又はこれに関連する無線端末機から取得する送信電力上限値取得手段を備え、
    　前記通信禁止手段は、前記無線端末機について前記送信電力値取得手段で取得した送信電力の値が、当該無線端末機又はこれに関連する無線端末機から前記送信電力上限値取得手段で取得した値以上である場合又はこれを超えた場合は、当該無線端末機との通信を禁止することを特徴とする通信システム。     In claim 28,
    Transmission power upper limit value acquisition means for acquiring a value lower than the maximum upper limit value of the wireless terminal from the wireless terminal or a wireless terminal related thereto,
    The communication prohibition means is a value obtained by the transmission power upper limit value acquisition means from the wireless terminal or a wireless terminal related thereto, the value of the transmission power acquired by the transmission power value acquisition means for the wireless terminal. A communication system characterized by prohibiting communication with the wireless terminal if it is above or exceeds this.
  42. 　通信相手方の送信電力の値を取得する送信電力値取得手段と、
    　前記送信電力値取得手段で取得した送信電力の値が所定値以上である場合又はこれを超えた場合は、前記通信相手方との通信を禁止する通信禁止手段とを備えることを特徴とする無線送受信機。     A transmission power value acquisition means for acquiring the value of the transmission power of the communication partner;
    Radio transmission / reception comprising: communication prohibiting means for prohibiting communication with the communication partner when the value of the transmission power acquired by the transmission power value acquiring means is equal to or greater than a predetermined value. Machine.
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