JP6016586B2 - Mobile terminal and communication system - Google Patents

Description

  The present invention relates to a mobile terminal that distributes distribution information and a communication system.

  Conventionally, a method of selectively distributing information to a mobile terminal located in a specific area is known. For example, Patent Document 1 proposes an advertisement distribution method in which a distribution server that distributes advertisements distributes advertisements to mobile terminals that permit distribution of advertisements in the advertisement distribution area (for example, Patents). Reference 1). In addition, a method is known in which a mobile terminal specifies a communication partner within a range where radio waves can reach by restricting at least one of the strength and sensitivity of the radio wave, and transmits / receives information to / from the specified partner. (For example, refer to Patent Document 2).

JP 2001-359166 A JP 2001-156704 A

  When distributing information by the advertisement distribution method described in Patent Document 1, the distribution server grasps the position of the mobile terminal that is permitted to distribute the advertisement, and performs the advertisement via the base station where radio waves reach the mobile terminal. To deliver. Therefore, the distribution server has to acquire the position information of the mobile terminal before distributing the advertisement.

  In order for the distribution server to acquire the position information of the mobile terminal, the distribution server requests the base station of the mobile phone network to acquire the position information of the mobile terminal to which the advertisement is to be distributed. The location information of each mobile terminal must be collected and notified to the distribution server. Therefore, there is a problem that the amount of traffic on the wireless communication line between the base station and the portable terminal increases in order to acquire the position information of the portable terminal.

  The method described in Patent Document 2 is merely a method of specifying a communication partner within a range where radio waves reach by limiting at least one of the intensity and sensitivity of radio waves, so that, for example, mobile phone There is a problem that it is not possible to make a transmission within an appropriate range according to the attribute of information transmitted by the terminal user. In other words, a user of a mobile terminal transmits information to a terminal located within 100 m from the mobile terminal so that the user can easily buy and sell goods, and is located within a range of 1 km from the mobile terminal so as to attract many buyers. The information could not be distributed within an appropriate range according to the attribute of the information, such as sending information to the user of the other terminal.

  An object of the present invention is to provide a mobile terminal and a communication system that can reduce the amount of traffic on a wireless communication line between a base station and a mobile terminal and can distribute information to an appropriate range.

  A portable terminal according to the present invention is a portable terminal that can transmit and receive information to and from a plurality of receiving terminals that receive information, and transmits information by transmitting radio waves to a storage unit that stores information to be distributed as distribution information. A wireless communication unit, an adjustment unit that adjusts an output intensity of the radio wave transmitted by the wireless communication unit based on an attribute of the distribution information, and a radio communication unit that is placed on the radio wave of the output intensity adjusted by the adjustment unit A distribution unit that distributes the distribution information to one of the plurality of receiving terminals that is located within a range corresponding to the output intensity from the wireless communication unit. Features.

  In the mobile terminal according to the present invention, the adjustment unit may increase the output intensity step by step as time elapses.

  In the mobile terminal according to the present invention, the adjustment unit may determine a timing for increasing the output intensity stepwise based on an attribute of the distribution information.

  In the mobile terminal according to the present invention, the distribution unit acquires attribute information of users of the plurality of mobile terminals, and becomes a distribution information distribution target from the plurality of mobile terminals based on the attribute information. A terminal may be selected and the distribution information may be distributed to the selected terminal. The distribution unit may transmit distribution area information designating an area for distributing the distribution information.

  A communication system according to the present invention includes a plurality of receiving terminals that receive information, a portable terminal that can transmit and receive with the plurality of receiving terminals, and a plurality of receiving terminals and a base station that can wirelessly communicate with the portable terminal. In the communication system, the mobile terminal is based on a storage unit that stores information to be distributed as distribution information, a first wireless communication unit that transmits and receives information by transmitting radio waves, and an attribute of the distribution information. Determining the output intensity of the radio wave transmitted by the first wireless communication unit, causing the first wireless communication unit to transmit request information including a request to adjust the determined output intensity to the base station, and When receiving permission information indicating that the wireless communication unit permits adjustment of the output intensity from the base station, an adjustment unit that adjusts the output intensity, and a radio wave of the output intensity adjusted by the adjustment unit By transmitting the distribution information to the first wireless communication unit, the distribution information is distributed to the plurality of receiving terminals that are located within the range corresponding to the output intensity from the first wireless communication unit. A base station, wherein the base station transmits and receives information by transmitting radio waves; and when the second wireless communication unit receives the request information from the portable terminal, the base station And a determination unit that determines whether or not to transmit the permission information to the mobile terminal based on the magnitude of influence on communication with another terminal that can wirelessly communicate with the station.

  ADVANTAGE OF THE INVENTION According to this invention, the traffic amount of the radio | wireless communication line between a base station and a portable terminal can be reduced, and information can be distributed to a suitable terminal.

1 is a schematic diagram of a communication system according to a first embodiment. It is a functional lineblock diagram of a personal digital assistant concerning a 1st embodiment. It is a flowchart explaining the flow of the process by the control part of the portable terminal which concerns on 1st Embodiment. It is a flowchart explaining the flow of the process by the control part of the portable terminal which concerns on 2nd Embodiment. It is a figure which shows the delivery possible range of the portable terminal in the state where the output intensity of the radio | wireless communication part which concerns on 2nd Embodiment is the weakest. It is a figure which shows the distributable range of the portable terminal 1 of a state where the output intensity of the radio | wireless communication part which concerns on 2nd Embodiment is the one step stronger from the weakest state. It is a function block diagram of the base station which concerns on 3rd Embodiment. It is a communication sequence diagram among the base station which concerns on 3rd Embodiment, a portable terminal, and a receiving terminal. It is a figure which shows the distributable range of the portable terminal which concerns on 4th Embodiment.

Hereinafter, embodiments of the present invention will be described.
<First Embodiment>
[Outline of Communication System S]
FIG. 1 is a schematic diagram of a communication system S according to the first embodiment.
The communication system S includes a mobile terminal 1 that can communicate with the base station 3 via a wireless communication line W1 such as a mobile phone line, and a plurality of receiving terminals 2 that receive information. The portable terminal 1 and the plurality of receiving terminals 2 can transmit and receive each other via the wireless communication line W2. Here, the wireless communication line W1 is, for example, a CDMA (Code Division Multiple Access) 2000 system, a W-CDMA system, an LTE (Long Term Evolution) system, an LTE-A (LTE-Advanced) system, or a WiMAX (Worldwide Interoperability for Microwave Access). This is a wireless communication line using the base station 3 using the above method. The wireless communication line W2 is, for example, a Wi-Fi, Interleave-Division Multiple Access (IDMA) method, or a method for realizing inter-terminal communication (D2D) using part of radio resources in the LTE band (see the following references) ), And a wireless communication line that does not use the base station 3.
[References]
Tsolkas, Dimitris; Liotou, Eirini; Passas, Nikos; Merakos, Lazaros; "A graph-coloring secondary resource allocation for D2D communications in LTE networks," 2012 IEEE 17th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD ), pp.56-60, 17-19 Sept. 2012

  A broken line in FIG. 1 indicates a range where a radio wave transmitted by the mobile terminal 1 reaches. A broken line a1 indicates a range in which the radio wave reaches when the mobile terminal 1 transmits the radio wave with the first output intensity. A broken line a2 indicates a range in which the radio wave reaches when the mobile terminal 1 transmits the radio wave with the second output intensity that is higher than the first output intensity. For example, the mobile terminal 1 adjusts the output intensity of the radio wave when performing wireless communication to the second output intensity based on the attribute of the distribution information, and the second output intensity of the receiving terminals 2A, 2B, and 2C. The distribution information is distributed to the receiving terminals 2A and 2B located within the range corresponding to the above.

[Configuration example of mobile terminal 1]
Subsequently, the mobile terminal 1 will be described in detail.
FIG. 2 is a functional configuration diagram of the mobile terminal 1 according to the first embodiment. As shown in FIG. 2, the mobile terminal 1 includes a display unit 11, an input unit 12, a wireless communication unit 13, a storage unit 14, and a control unit 15.

The display unit 11 includes, for example, a liquid crystal display or an organic EL (Electro-Luminescence) display. The display unit 11 displays characters, figures, and the like.
The input unit 12 is configured by, for example, a contact sensor, a button, and the like that are arranged so as to overlap the display unit 11. The input unit 12 receives an operation input from the user of the mobile terminal 1.

  The wireless communication unit 13 includes a baseband circuit unit, an RF circuit unit, an antenna, and the like (not shown), and transmits information by transmitting radio waves. The wireless communication unit 13 communicates with the base station 3 via the wireless communication line W1. Further, the wireless communication unit 13 communicates with a plurality of receiving terminals 2 via the wireless communication line W2.

  The storage unit 14 is configured by, for example, a ROM and a RAM. The storage unit 14 stores various programs for causing the mobile terminal 1 to function. The storage unit 14 stores information to be distributed as distribution information. Here, the distribution information is, for example, information on articles that the user of the mobile terminal 1 desires to purchase, advertisement information, merchandise sales information, and recruitment of communication partners.

  Further, the storage unit 14 stores the distribution information and attribute information indicating the attribute of the distribution information in association with each other. The attribute information of the distribution information is, for example, information indicating the classification of products related to the distribution information, such as sports equipment, clothing, beverages, and food. The attribute information of the distribution information may be information indicating the attribute of the user of the receiving terminal 2 that wants to receive the distribution information, such as sex and age. The attribute information of the distribution information may be information indicating the purpose of distributing the distribution information, such as an auction, sales, or an advertisement. When the distribution information is information related to a product to be bought and sold, the attribute information of the delivery information may be a sale condition such as a sale price of the product or a sale period of the product. The attribute information of the distribution information may be a transmission condition such as an interval at which the distribution information is retransmitted or an upper limit value of the number of retransmissions.

  Furthermore, the storage unit 14 stores output intensity information that associates the attribute information of the distribution information with the output intensity of the radio wave transmitted by the wireless communication unit 13 when the distribution information is transmitted. Specifically, for the distribution information to be distributed within a relatively close range from the mobile terminal 1, the storage unit 14 is the first output intensity information (for example, “weak” level) indicating the first output intensity. For distribution information to be distributed within a relatively far range from the portable terminal 1, second output intensity information (for example, “strong”) indicating a second output intensity higher than the first output intensity. Level). The storage unit 14 stores, for example, a numerical value associated with radio wave intensity as output intensity information.

For example, if the sale price of a product is lower than a predetermined amount, selling to a distant person takes time for the transfer even though the sale price is low, resulting in poor efficiency. A product that is cheaper than the price and the first output intensity information are stored in association with each other. On the other hand, the storage unit 14 stores a product whose sales price of the product is higher than a predetermined price and the second output intensity information in association with each other.
Similarly, the storage unit 14 stores a product whose sales period of the product is shorter than the predetermined period and the first output intensity information in association with each other, and stores the product whose sales period of the product is longer than the predetermined period and the second output intensity. Information is stored in association with each other.

  Further, the storage unit 14 stores the distribution information whose retransmission interval is shorter than the predetermined interval or the distribution information whose number of retransmissions is larger than the predetermined number and the first output intensity information in association with each other, and the retransmission interval is predetermined. The distribution information longer than the interval or the distribution information whose number of retransmissions is less than the predetermined number of times and the second output intensity information are stored in association with each other. Since the storage unit 14 stores attribute information related to the number of transmissions of distribution information and output intensity information in association with each other in this way, it is possible to suppress radio waves from being transmitted at a high frequency over a wide range, and a wireless communication line W1 congestion and wireless communication line W2 congestion can be prevented.

  The control part 15 is comprised by CPU, for example. The control unit 15 comprehensively controls functions related to the mobile terminal 1 by executing various programs stored in the storage unit 14. The control unit 15 includes a selection unit 151, an adjustment unit 152, and a distribution unit 153.

The selection unit 151 receives distribution information to be transmitted to the receiving terminal 2 from the distribution information stored in the storage unit 14 in response to receiving an operation for selecting distribution information from the user of the mobile terminal 1 via the input unit 12. select.
The adjustment unit 152 adjusts the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information selected by the selection unit 151. Specifically, the adjustment unit 152 refers to the output intensity information stored in the storage unit 14, and specifies the output intensity stored in association with the attribute of the distribution information selected by the selection unit 151.

  When the distribution information selected by the selection unit 151 has a plurality of types of attributes, the adjustment unit 152 is configured to distribute the distribution information based on a plurality of output intensities stored in association with the plurality of types of attributes. The output intensity is calculated. For example, the adjustment unit 152 sets the average value of the output intensity associated with each of the plurality of attributes as the output intensity at the time of distribution.

  The distribution unit 153 distributes distribution information by causing the wireless communication unit 13 to perform communication via the wireless communication line W2. Specifically, the distribution unit 153 causes the wireless communication unit 13 to transmit distribution information on the radio wave having the output intensity adjusted by the adjustment unit 152, so that the wireless communication unit 13 among the plurality of receiving terminals 2 The distribution information is distributed to the receiving terminal 2 located within the range corresponding to the output intensity.

  The distribution procedure by the distribution unit 153 will be specifically described. First, the distribution unit 153 transmits confirmation information including request information for requesting user attribute information to each of the plurality of receiving terminals 2 via the wireless communication unit 13. The receiving terminal 2 that has received the confirmation information among the plurality of receiving terminals 2 transmits response information including user attribute information to the mobile terminal 1. Here, the user attribute information included in the response information is, for example, attribute information of a product that the user of the receiving terminal 2 wants to purchase. Note that the user attribute information may be information related to the user of the receiving terminal 2 such as gender and age.

  The distribution unit 153 acquires response information transmitted from the receiving terminal 2 that has received the confirmation information. Subsequently, based on the distribution attribute information stored in the storage unit 14 and the user attribute information included in the acquired response information, the distribution unit 153 determines the distribution information distribution target from the plurality of receiving terminals 2. Select the terminal. Subsequently, the distribution unit 153 distributes distribution information to the selected terminal.

  The distribution unit 153 may directly distribute the distribution information to the plurality of receiving terminals 2 without transmitting the confirmation information. That is, the distribution unit 153 transmits a plurality of reception information by causing the wireless communication unit 13 to transmit the distribution information on the radio wave having the output intensity adjusted by the adjustment unit 152 without selecting a terminal that is a distribution target of the distribution information. The distribution information may be distributed to the terminal 2 that is located within the range corresponding to the output intensity from the wireless communication unit 13.

[Operation Flowchart of Portable Terminal 1]
Next, an example of a process flow by the control unit 15 of the mobile terminal 1 will be described. FIG. 3 is a flowchart for explaining the flow of processing by the control unit 15 of the mobile terminal 1.

  First, the selection unit 151 selects the distribution information in response to receiving a distribution information selection operation from the user of the mobile terminal 1 via the input unit 12 (S1). Subsequently, the adjustment unit 152 adjusts the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information selected in step S1 (S2). Subsequently, the distribution unit 153 distributes the confirmation information and receives response information for the confirmation information from the receiving terminal 2 that has received the confirmation information (S3).

  Subsequently, the distribution unit 153 compares the user attribute information included in the response information with the attribute information included in the distribution information attribute information stored in the storage unit 14. The distribution unit 153 selects the receiving terminal 2 as a distribution target of the second distribution information based on the degree of coincidence or similarity between the user attribute information and the attribute information of the distribution information (S4), and the selected reception Distribution information is distributed to the terminal 2 (S5).

[Use case according to the first embodiment]
Next, a process in the case where the distribution information is online auction exhibition information will be described.
First, the user of the mobile terminal 1 operates the input unit 12 to activate an application related to a net auction, and registers exhibition information including a product name, a bid start price, a minimum successful bid price, and a bid end time.

  For example, assume that the item to be exhibited is “Wine”, the bid start price is “500 yen”, the lowest successful bid price is “1000 yen”, and the bid end time is “after 15 minutes”. Further, in the output intensity information stored in the storage unit 14, the output intensity corresponding to the bid start price of less than 1000 yen, the lowest bid price of less than 2000 yen, and the bid end time within 30 minutes is “weak” (above (Corresponding to the first output intensity). In this case, the adjustment unit 152 adjusts the output intensity to the “weak” level by referring to the output intensity information stored in the storage unit 14.

  Subsequently, the distribution unit 153 causes the wireless communication unit 13 to transmit confirmation information on the radio wave having the “weak” level output intensity adjusted by the adjustment unit 152. Among the plurality of receiving terminals 2, the one that has received the confirmation information transmits response information including user attribute information to the mobile terminal 1. The distribution unit 153 distributes the exhibition information to the receiving terminal 2 that has transmitted the response information including the age information “20 years or older” as the user attribute information.

  When receiving the exhibition information, the receiving terminal 2 displays the exhibition information to the user of the receiving terminal 2. Specifically, the receiving terminal 2 displays a photograph of wine that is the subject of an auction, a bid start price, and a bid end time. When receiving the bid price from the user, the receiving terminal 2 transmits bid information including the bid price and the telephone number to the mobile terminal 1.

  When the mobile terminal 1 receives the bid information, the distribution unit 153 determines whether the bid information satisfies the successful bid condition. For example, when the bid price included in the bid information exceeds the lowest successful bid price set in advance by the user of the mobile terminal 1, the distribution unit 153 transmits a message notifying the successful bid to the receiving terminal 2. The distribution unit 153 may make a call to the telephone number of the receiving terminal 2 included in the bid information.

  As another example, assume that the item to be exhibited is “jewel”, the bid start price is “10,000 yen”, the lowest successful bid price is “30,000 yen”, and the bid end time is “after one hour”. Further, in the output intensity information stored in the storage unit 14, the output intensity corresponding to a bid start price of 1000 yen or more, a minimum successful bid price of 2000 yen or more, and a bid end time of 30 minutes or more is “strong” level. Shall. In this case, the adjustment unit 152 adjusts the output intensity to the “strong” level by referring to the output intensity information stored in the storage unit 14. When a part of the plurality of attribute information is associated with different output intensities, such as when the bid end time is “20 minutes later”, the adjustment unit 152 is associated with the three attributes. Among the output intensities, the output intensity associated with the bid end time is “weak”, so the output intensity is adjusted to be between the first output intensity and the second output intensity.

[Effect in the first embodiment]
As described above, in the communication system S according to the first embodiment, the adjustment unit 152 of the mobile terminal 1 adjusts the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information. Next, the distribution unit 153 transmits the distribution information to the wireless communication unit 13 on the radio wave having the output intensity adjusted by the adjustment unit 152, so that the wireless communication unit 13 increases the output intensity from among the plurality of receiving terminals 2. The distribution information is distributed to those located within the corresponding range. In this way, the mobile terminal 1 can distribute information in an appropriate range without increasing the traffic amount of the wireless communication line between the base station 3 and the mobile terminal 1.

  In the communication system S according to the first embodiment, the distribution unit 153 of the mobile terminal 1 acquires the attribute information of the users of the plurality of receiving terminals 2, and distributes the information from the plurality of receiving terminals 2 based on the attribute information. A terminal to which information is to be distributed is selected, and distribution information is distributed to the selected terminal. By doing in this way, the portable terminal 1 can suppress the increase in unnecessary communication traffic.

<Second Embodiment>
[Adjustment unit adjusts radio wave output intensity step by step]
Next, the second embodiment will be described. The second embodiment is different from the first embodiment in that the adjustment unit 152 changes the output intensity stepwise, and is the same in other points.

[Configuration Example of Mobile Terminal 1 According to Second Embodiment]
Since the functional configuration of the mobile terminal 1 according to the second embodiment is the same as the functional configuration of the mobile terminal 1 according to the first embodiment shown in FIG. 2, the description will be made with reference to FIG.
The adjustment unit 152 and the distribution unit 153 of the mobile terminal 1 according to the second embodiment have different functions from the adjustment unit 152 and the distribution unit 153 according to the first embodiment. Other configurations are the same as the functions according to the first embodiment, and thus the description thereof is omitted.

  The adjustment unit 152 gradually increases the output intensity of the radio wave transmitted by the wireless communication unit 13 as time elapses. Specifically, the adjustment unit 152 starts timing in response to the distribution unit 153 distributing the distribution information. And the adjustment part 152 increases the output intensity | strength of the electromagnetic wave which the wireless communication part 13 transmits, when the wireless communication part 13 does not receive the response information corresponding to delivery information within the time which measured.

  In the above description, the adjustment unit 152 determines whether or not to increase the output intensity of the radio wave step by step when the response information is not received. Not exclusively. For example, the adjustment unit 152 may increase the output intensity of the radio wave stepwise when the number of response information received within a predetermined time is less than the predetermined number. When the distribution unit 153 retransmits the distribution information when the wireless communication unit 13 does not receive the response information, the adjustment unit 152 may increase the output intensity in synchronization with the timing of retransmitting the distribution information. .

  The adjustment unit 152 may determine the timing for gradually increasing the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information selected by the selection unit 151. Specifically, the adjustment unit 152 determines the timing described above with reference to information indicating the timing at which the output intensity of the radio wave is increased, which is stored in association with the attribute of the distribution information.

  For example, the adjustment unit 152 increases the output intensity of the radio wave at a shorter interval when the sale period of the product is shorter than the predetermined period than when the sale period of the product is longer than the predetermined period. Since the adjustment unit 152 adjusts the output intensity in this way, when the sales period of the product is short, the distribution range of the distribution information can be expanded within a short period of time, so that the product can be sold quickly.

  The adjustment unit 152 may increase the output intensity at a relatively short interval when the upper limit value of the number of retransmissions is relatively small. Since the adjustment unit 152 adjusts the output intensity in this way, the distribution range of the distribution information can be expanded within a short period of time, so that the product can be sold as soon as possible within the limited number of retransmissions. it can.

[Flowchart of Mobile Terminal 1 According to Second Embodiment]
Subsequently, an example of a flow of processing by the control unit 15 of the mobile terminal 1 according to the second embodiment will be described. FIG. 4 is a flowchart for explaining the flow of processing by the control unit 15 of the mobile terminal 1 according to the second embodiment.

  First, the selection unit 151 selects the distribution information in response to receiving a distribution information selection operation from the user of the mobile terminal 1 via the input unit 12 (S11). Subsequently, the adjustment unit 152 determines the timing for gradually increasing the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information selected by the selection unit 151 (S12). Subsequently, the adjustment unit 152 adjusts the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information selected in S1 (S13). Subsequently, the distribution unit 153 distributes the confirmation information to the plurality of receiving terminals 2 (S14).

  Subsequently, when receiving the response information for the confirmation information, the distribution unit 153 compares the attribute information of the user included in the response information with the attribute information of the distribution information stored in the storage unit 14, and The receiving terminal 2 to be distributed is selected (S15), and distribution information is distributed to the selected receiving terminal 2 (S16). Subsequently, the adjustment unit 152 determines whether or not there is a response from the receiving terminal 2 within a predetermined time (S17). If the adjustment unit 152 determines that there is a response, the adjustment unit 152 ends the process according to the flowchart. When determining that there is no response, the adjustment unit 152 moves the process to S13 and adjusts the output intensity at the timing of adjusting the output intensity.

[Use Case According to Second Embodiment]
Next, a process in the case where the distribution information is information related to the purchase of an article will be described with reference to FIG. FIG. 5A is a diagram illustrating a distributable range of the mobile terminal 1 in a state where the output intensity is the weakest, and FIG. 5B is a diagram illustrating a distributable range of the mobile terminal 1 in a state where the output intensity is the weakest and one level stronger It is.

  First, the user of the mobile terminal 1 operates the input unit 12 to activate an application related to purchase of an article, and registers information on the article that the user wants to purchase as distribution information in the application. For example, when a user who is out of the office suddenly needs a diaper for a child, the user sets the information on the item to be purchased as “diaper”, the purchase price as “100 yen”, and the time until purchase as “10 minutes”. " Here, in the output intensity information stored in the storage unit 14, the output intensity corresponding to the attribute information of the distribution information when the purchase price is 100 yen and the time to purchase is 10 minutes is the “weakest” level. And

  In this case, the adjustment unit 152 determines the output intensity at the “weakest” level, and at the timing of gradually increasing the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute information of the distribution information. decide. For example, based on the attribute information indicating that the time to purchase is 10 minutes, the adjustment unit 152 increases the output intensity at 1 minute intervals shorter than the time to purchase indicated by the attribute information.

  Subsequently, the distribution unit 153 causes the wireless communication unit 13 to transmit purchase information on the radio wave having the output intensity adjusted by the adjustment unit 152. Here, since the adjustment unit 152 distributes purchase information at an output intensity level of “weakest”, the purchase information is distributed only to the receiving terminal 2A as shown in FIG. 5A.

  In response to receiving the purchase information, the reception terminal 2A displays the purchase information on the display unit of the reception terminal 2A and accepts the selection of whether or not to sell. If the user of the receiving terminal 2A that has received the purchase information does not select to sell within the predetermined time, the mobile terminal 1 does not receive a response to the purchase information. Increases the output intensity of radio waves transmitted by. Even when the wireless communication unit 13 receives information indicating that sales are permitted from the user of the receiving terminal 2A, if the sales price is not the user's desired price, the adjustment unit 152 responds to the user's instruction. Thus, the output intensity of the radio wave may be increased.

  Subsequently, the distribution unit 153 causes the wireless communication unit 13 to transmit purchase information on the radio wave having the output intensity adjusted and increased by the adjustment unit 152. Since the distribution unit 153 distributes the purchase information at a level obtained by increasing the output intensity by one step from the “weakest” level, the purchase information is also distributed to the receiving terminal 2B as shown in FIG. 5B. The adjustment unit 152 gradually increases the output intensity until receiving a response to the purchase information from any of the receiving terminals 2.

[Effects of Second Embodiment]
As described above, in the communication system S according to the second embodiment, the adjustment unit 152 of the mobile terminal 1 increases the intensity of the radio wave transmitted by the wireless communication unit 13 step by step as time elapses. By doing in this way, the portable terminal 1 can change the range which delivers information with progress of time. Therefore, the user of the portable terminal 1 can aim at communication in order from the other users who are located near the user.

  In the communication system S according to the second embodiment, the adjustment unit 152 of the mobile terminal 1 gradually increases the intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information. By doing in this way, the portable terminal 1 can attach the timing of changing the delivery range of the said delivery information based on the attribute of delivery information.

<Third Embodiment>
[Base Station 3 Permits Transmission of Radio Wave with Output Strength Adjusted by Adjustment Unit 152]
Subsequently, a third embodiment will be described. The third embodiment is different from the first embodiment in that the wireless communication unit 13 transmits a radio wave in response to the base station 3 allowing the radio wave to be transmitted with the output intensity determined by the adjustment unit 152. It is different and the same in other respects.

FIG. 6 is a functional configuration diagram of the base station according to the third embodiment. As illustrated in FIG. 6, the base station 3 includes a base station side communication unit 31 as a second wireless communication unit and a determination unit 32.
The base station side communication unit 31 transmits information by transmitting radio waves.
When the base station side communication unit 31 receives the request information from the mobile terminal 1, the determination unit 32 sends the permission information to the mobile terminal based on the degree of influence on communication with the base station 3 and other terminals capable of wireless communication. 1 is determined whether or not to transmit.

FIG. 7 is a communication sequence diagram among the base station 3, the mobile terminal 1, and the receiving terminals 2A, 2B, and 2C according to the third embodiment.
The adjustment unit 152 according to the third embodiment determines the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information, and requests the wireless communication unit 13 for permission to adjust to the determined output intensity. The request information including it is transmitted to the base station 3.

  When the base station side communication unit 31 of the base station 3 receives the request information from the portable terminal 1, the determination unit 32 uses the wireless communication channel usage status of the wireless communication line W1 in the cell of the base station 3 and the received request information. On the basis of the output intensity included in the signal, it is determined whether or not the adjustment to the output intensity is permitted. For example, when the usage rate of the wireless communication channel of the wireless communication line W1 is low, the determination unit 32 has a small influence on the wireless communication channel of the wireless communication line W1 by increasing the output intensity of the radio wave. Therefore, adjustment to the output intensity is permitted, and when the usage rate of the wireless communication channel of the wireless communication line W1 is high, adjustment to the output intensity is not permitted.

  The determination unit 32 includes the frequency of the wireless communication line W2 used by the mobile terminal 1 and the frequency of the wireless communication channel of the wireless communication line W1 used in the cell of the base station 3 included in the request information. Based on the frequency difference, it may be determined whether to permit an increase in output intensity. Further, the determination unit 32, when the frequency difference between the frequency of the wireless communication line W2 and the frequency of the wireless communication channel of the wireless communication line W1 used in the cell of the base station 3 is smaller than a predetermined value, Based on the position information of the mobile terminal 1 and the position information of the terminal using the wireless communication line W1, when the distance between the two is larger than the distance that the radio wave reaches at the output intensity requested from the mobile terminal 1. May determine to permit an increase in output intensity.

  The base station side communication unit 31 transmits permission information to the mobile terminal 1 when the determination unit 32 determines that the mobile terminal 1 is allowed to adjust the output intensity. When the determination unit 32 determines that the mobile terminal 1 refuses to adjust the output intensity, the base station side communication unit 31 transmits rejection information indicating that the mobile terminal 1 is not allowed to adjust the output intensity. To do.

  Subsequently, when receiving the permission information indicating that the wireless communication unit 13 permits the wireless communication unit 13 to adjust the output strength from the base station 3, the adjustment unit 152 of the mobile terminal 1 receives the output strength “ Adjust to “Strong”. Further, when receiving the refusal information indicating that the wireless communication unit 13 does not allow the wireless communication unit 13 to adjust the output intensity from the base station 3, the adjustment unit 152 adjusts the output intensity permitted by the base station 3 to “weak”, for example. .

[Effect in the third embodiment]
As described above, in the communication system S according to the third embodiment, the adjustment unit 152 of the mobile terminal 1 determines the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information, and the wireless communication unit 13, request information including a request for adjusting the determined output intensity is transmitted to the base station 3. When the base station side communication unit 31 receives the request information from the mobile terminal 1, the determination unit 32 of the base station 3 determines the base station 3 based on the magnitude of the influence on the communication with the base station 3 and other terminals capable of wireless communication. The station side communication unit 31 transmits permission information to the mobile terminal 1. And the adjustment part 152 of the portable terminal 1 will adjust output intensity, if the permission information which shows that the radio | wireless communication part 13 permits adjusting output intensity from the base station 3 is received.

  By doing in this way, the communication system S, for example, when the wireless communication line W1 is congested, or the frequency of the wireless communication channel used in the wireless communication line W1 and the frequency used in the wireless communication line W2 Since the radio wave output intensity is not permitted to be increased when the frequency is close to each other, interference between radio communication channels can be prevented.

<Fourth Embodiment>
[Portable terminal 1 specifies an area for distributing communication information]
Subsequently, a fourth embodiment will be described. The fourth embodiment is different from the first embodiment in that the portable terminal 1 specifies an area for distributing distribution information when distributing the distribution information, and is the same in other respects.

[Configuration example of mobile terminal 1 according to the fourth embodiment]
Since the functional configuration of the mobile terminal 1 according to the fourth embodiment is the same as the functional configuration of the mobile terminal 1 according to the first embodiment shown in FIG. 2, the description will be made with reference to FIG.
In the mobile terminal 1 according to the fourth embodiment, the selection unit 151 and the distribution unit 153 are different from the selection unit 151 and the distribution unit 153 according to the first embodiment. Other configurations are the same as the functions according to the first embodiment, and thus the description thereof is omitted.

FIG. 8 is a diagram illustrating a distributable range of the mobile terminal according to the fourth embodiment.
The selection unit 151 selects the distribution information in response to receiving a distribution information selection operation from the user of the mobile terminal 1 via the input unit 12. In addition, the selection unit 151 receives designation of a distribution area of distribution information via the input unit 12. Here, the selection unit 151 may display the distribution area when the output intensity of the wireless communication unit 13 of the mobile terminal 1 is maximized on the display unit 11 and accept the designation of the distribution area. Here, the distribution area information is, for example, information indicating the latitude and longitude of four points, and a range surrounded by a chain line a3 connecting the four points is a distribution area.

  The distribution unit 153 receives confirmation information including request information for requesting attribute information of each user of the plurality of receiving terminals 2 and arrangement area information received by the selection unit 151 via the wireless communication unit 13. send. When the receiving terminal 2 that has received the confirmation information among the plurality of receiving terminals 2 determines whether or not the receiving terminal 2 itself is included in the distribution area indicated by the distribution area information, For example, response information including user attribute information and position information is transmitted to the mobile terminal 1. In FIG. 8, since the receiving terminal 2A is outside the distribution area a3, it does not transmit response information. Since the receiving terminals 2B and 2C are inside the distribution area a3, the response information is transmitted.

  The distribution unit 153 acquires response information transmitted from the receiving terminals 2B and 2C. Subsequently, based on the attribute information of the distribution information stored in the storage unit 14 and the user attribute information included in the acquired response information, the distribution unit 153 distributes the distribution information from the plurality of receiving terminals 2B and 2C. Select the terminal to be delivered. Subsequently, the distribution unit 153 distributes distribution information to the selected terminal.

[Effects of the fourth embodiment]
As described above, in the communication system S according to the fourth embodiment, the selection unit 151 of the mobile terminal 1 accepts designation of a distribution area of distribution information via the input unit 12. In addition, the distribution unit 153 of the mobile terminal 1 includes request information for requesting user attribute information of the plurality of receiving terminals 2 and the arrangement area information received by the selection unit 151 via the wireless communication unit 13. The confirmation information is transmitted, and the distribution information is distributed to the receiving terminal 2 that has transmitted the response information based on the distribution area information.

  By doing in this way, the user of the portable terminal 1 selects an area where distribution information is desired to be distributed from areas where communication by the wireless communication unit 13 is possible, and distributes distribution information to the receiving terminals 2 in the selected area. Can be delivered.

  In the fourth embodiment, the adjustment unit 152 adjusts the output intensity of the radio wave transmitted by the wireless communication unit 13 based on the attribute of the distribution information, thereby controlling the range in which the distribution information is distributed. The distribution unit 153 distributes the distribution information by broadcasting the confirmation information including the distribution area information determined based on the attribute of the distribution information through the wireless communication unit 13 using the wireless communication line W2. The range to be controlled may be controlled. In this case, as described in the second embodiment, the distribution unit 153 gradually expands the distribution area specified by the distribution area information based on at least one of the attribute of the distribution information and the passage of time. Also good. Further, as described in the third embodiment, the distribution unit 153 may transmit the distribution area information after receiving permission from the base station 3 to change the distribution area.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. For example, in the first embodiment, the case related to the net auction has been described, but in the second embodiment, the case related to the net auction may be applied. For example, when the distribution unit 153 distributes distribution information related to a net auction and the wireless communication unit 13 does not receive information related to a bid within a predetermined time, the adjustment unit 152 outputs the radio wave output intensity of the wireless communication unit 13. May be increased.

DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 2 ... Receiving terminal, 3 ... Base station, 11 ... Display part, 12 ... Input part, 13 ... Wireless communication part, 14 ... Memory | storage part, DESCRIPTION OF SYMBOLS 15 ... Control part, 31 ... Base station side communication part, 32 ... Determination part, 151 ... Selection part, 152 ... Adjustment part, 153 ... Distribution part, S ... Communication system

Claims (5)

A portable terminal capable of sending and receiving information to and from a plurality of receiving terminals,
A storage unit for storing information to be distributed as distribution information;
A wireless communication unit that transmits information by transmitting radio waves;
An adjustment for determining a stepwise increase in the output intensity of the radio wave transmitted by the wireless communication unit based on the attribute of the distribution information and adjusting the output intensity based on the timing and the attribute of the distribution information And
By positioning the radio communication unit to transmit the distribution information on the radio wave having the output intensity adjusted by the adjustment unit, the radio communication unit is located within a range corresponding to the output intensity from the radio communication unit. A distribution unit for distributing the distribution information to a thing;
A mobile terminal comprising: The adjustment unit increases the output intensity stepwise as time passes.
The mobile terminal according to claim 1. The distribution unit acquires attribute information of users of the plurality of receiving terminals, selects a terminal that is a distribution target of distribution information from the plurality of receiving terminals based on the attribute information, and selects the selected terminal Delivering the delivery information;
The portable terminal according to claim 1 or 2 . The delivery unit transmits delivery area information for designating an area to deliver the delivery information;
The portable terminal as described in any one of Claim 1 to 3 . A communication system comprising a plurality of receiving terminals for receiving information, a mobile terminal capable of transmitting and receiving with the plurality of receiving terminals, and a base station capable of wireless communication with the plurality of receiving terminals and the mobile terminal,
The portable terminal is
A storage unit for storing information to be distributed as distribution information;
A first wireless communication unit that transmits and receives information by transmitting radio waves;
The timing for increasing the output intensity of the radio wave transmitted by the first wireless communication unit in a stepwise manner is determined based on the attribute of the distribution information, and the output intensity is determined based on the timing and the attribute of the distribution information. And causing the first radio communication unit to transmit request information including a request for permission to adjust to the determined output strength to the base station, and the first radio communication unit adjusting the output strength from the base station. An adjustment unit that adjusts the output intensity when receiving permission information indicating that permission is permitted;
A range corresponding to the output intensity from the first wireless communication unit among the plurality of receiving terminals by causing the first wireless communication unit to transmit the distribution information on the radio wave having the output intensity adjusted by the adjustment unit. A distribution unit that distributes the distribution information to what is located within;
Have
The base station
A second wireless communication unit that transmits and receives information by transmitting radio waves;
When the second wireless communication unit receives the request information from the mobile terminal, the permission information is transmitted to the mobile terminal based on the magnitude of influence on communication with another terminal capable of wireless communication with the base station. A determination unit for determining whether or not to do;
A communication system.

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