JP2009177765A - Radio base station, radio communication terminal, radio communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio communication system for immediately establishing a communication link with a radio base station so as to receive large capacity content when a radio communication terminal passes through a communication area of the radio base station. <P>SOLUTION: Sub radio communication means possessed by a radio base station transmits set information to a radio communication terminal via communication in accordance with a sub radio communication system. When the radio communication terminal passes a communication area of the radio base station, the sub radio communication means possessed by the radio communication terminal receives the set information from the radio base station through communication in accordance with the sub radio communication system. The radio communication terminal is connected with main radio communication means possessed by the radio base station, in accordance with the main radio communication means possessed by the radio communication terminal, and with the set information by means of communication based on a main radio communication system. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a radio base station, a radio communication terminal, and a radio communication system, and more specifically, a radio base station that performs communication in a spot communication area, a radio communication terminal connected to the radio base station, and radio communication About the system.

  In recent years, portable devices having a communication function (hereinafter referred to as a wireless LAN communication function) compliant with the IEEE 802.11 standard have been increasingly popularized. In addition to offices and homes, places used can be used as so-called hot spots, although they are isolated spot-like communication areas. Correspondingly, devices equipped with wireless LAN are not limited to PCs and office devices, but are also installed in various devices including home appliances. In particular, they are spreading to mobile phones, portable and in-vehicle devices. Yes.

  In the IEEE 802.11 standard, the following basic processing is required for a communication terminal to connect to a wireless LAN base station. The communication terminal first scans all communication channels and receives beacons periodically transmitted by the wireless LAN base station. After identifying the communication channel in which the wireless LAN base station exists, the communication terminal determines a wireless LAN base station to be connected, determines whether or not to connect to the base station by using an identifier called SSID (Service Set Identifier), and A communication path between a station and a communication terminal is encrypted by an encryption method represented by WEP (Wired Equivalent Privacy), WPA (Wi-Fi Protected Access), or the like. After the authentication and encryption are completed, the wireless LAN base station and the communication terminal can start communication for the first time.

  As described above, the IEEE 802.11 standard has a feature that communication is started after connection processing from communication channel scan to base station discovery, authentication, and encryption is completed. Further, according to the standard, it does not have a control channel, and does not have a function of automatically rising from a power-off state or a sleep state by receiving an external radio signal and automatically connecting to a base station. For this reason, in general, in order for a communication terminal to connect to a base station, the user returns the communication terminal from a power-off or sleep state, and the user operates a plurality of connection procedures or starts software for connection. It was necessary to raise. However, these operations are cumbersome and take time associated with user operations. In addition, the actual connection processing time other than the user operation takes significantly, and the communication is not started immediately.

In the future, as a service equipped with wireless LAN devices, it is expected that the use of services using a system configuration in which wireless LAN base stations are arranged outdoors and information is transmitted and received when passing through a spot-like area is expected to become more popular. . Future communication terminals are not limited to semi-fixed operation, in addition to cases of use while walking, cases used when moving at high speed on buses, trains, etc., and car navigation systems equipped with wireless LAN communication functions It is expected that it will be used more frequently. As the movement speed of the communication terminal increases, not only the time for user operation but also the time required for the communication terminal to start communication is required to be shortened. For example, if the communication terminal requires time and effort for connection processing until the start of communication when passing through the spot-like area, there is a possibility that information may hardly be transmitted / received when passing through the spot-like area. Also, in the worst case, there is a possibility that a situation in which communication is not possible due to passing through the spot-like area before communication is started may occur.
Conventionally, various improvement measures have been studied for the above problems (see, for example, Patent Documents 1 to 3).

  FIG. 58 is a block diagram showing a configuration of a conventional wireless communication system disclosed in Patent Document 1. In FIG. 58, a PDA (personal digital assistant) 2001 owned by a user is assumed to be owned by a user who has previously subscribed to an information provision service such as a mobile phone or PHS, and is automatically activated by a WOR (Wake-on Ring). ) Function and the wireless LAN client software is installed. The information providing company 2004 has a wake-on server 2005 controlled by the agent server 2003 and a gate server 2002. In addition, a wireless LAN base station that transmits / receives data to / from the PDA 2001 owned by the user is installed at a specific point that provides information. When the user who owns the PDA 2001 passes a specific point, the wake-on server 2005 activates the client software of the PDA 2001. The client software connects to the gate server 2002 through the wireless LAN base station, and records information distributed by the information providing company 2004 in the memory of the PDA 2001.

  With such a configuration, Patent Document 1 discloses a technique for a portable information terminal wireless LAN service for the purpose of providing a system for distributing information to portable information terminals passing through a communication area of a wireless LAN base station. ing.

  FIG. 59 is a block diagram showing a configuration of a conventional wireless communication system disclosed in Patent Document 2. 59, the connection apparatus 2101 includes a WLAN communication unit 2104 and an RFID reader 2106. The unconnected device 2102 includes a WLAN communication unit 2111 and an RFID transponder 2119. The connection device 2101 acquires unique communication data such as the IP address of the non-connection device 2102 in advance by close contact communication between the RFID transponder 2119 and the RFID reader 2106. As a result, the WLAN communication unit 2104 of the connection device 2101 and the WLAN communication unit 2111 of the non-connection device 2102 can start wireless communication. With this configuration, Patent Literature 2 discloses a wireless communication system that simplifies a connection procedure by a user operation.

  FIG. 60 is a block diagram showing a configuration of a conventional wireless communication system disclosed in Patent Document 3. As shown in FIG. In FIG. 60, a PC 2203 that is a wireless communication terminal includes a wireless LAN card 2201 and a pager card 2202. The network 2207 includes a wireless LAN base station 2205 and a pager base station 2206. The communication partner 2209 is connected to the network 2207. When the communication partner 2209 calls the PC 2203 and performs communication, the communication partner 2209 first calls using the pager card 2202 of the PC 2203 via the pager base station 2206 of the network 2207, and is the own network ID and destination. Exchange with the network ID of the PC 2203.

When the pager card 2202 detects a call from the network 2207, the PC 2203 activates the wireless LAN card 2201. Next, the PC 2203 performs communication using the wireless LAN with the communication partner 2209 by performing communication between the wireless LAN card 2201 and the wireless LAN base station 2205 based on the network ID exchanged by the pager card 2202. With this configuration, Patent Document 3 discloses a wireless communication system in which a call function and a function of operating a power source of a wireless LAN are added to a wireless communication system that does not originally have a call function by using communication by a pager card. Yes.
JP 2004-048395 A JP 2004-287767 A JP 2003-199117 A

  However, even if the techniques disclosed in Patent Documents 1 to 3 are used, if it is assumed that the communication terminal moves at high speed in a spot-like area, the time required to start communication is sufficiently shortened. It could not be said. In Japanese Patent Application Laid-Open No. 2004-228867, the user software required for connection can be improved by the client software activated by the wake-on server 2005. However, nothing has been said about shortening connection processing time other than user operations such as communication channel scan, base station discovery, authentication, and encryption (usually, these connection processes require several seconds).

  Also, with respect to Patent Document 2, it is an object to simplify a connection procedure by a user operation by exchanging communication setting information for performing ad hoc communication between a connection device 2101 and a non-connection device 2102 by proximity communication. However, it was not intended to shorten the connection processing real time other than the user operation as described above. In Patent Document 2, it is important to specify a connection partner of 1: 1 by bringing them into close contact with each other, and the user operation is simplified on the premise of this specifying method. That is, the connection device 2101 on the connection side reads the communication setting information of the non-connection device 2102 by proximity communication, and conversely adjusts the communication setting of the connection device 2101 on the connection side to that of the non-connection device 2102. It was. Therefore, it cannot be applied to the assumed system of this application in which a plurality of passing communication terminals having different communication setting information are simultaneously connected to the connection device 2101 (1: N). In addition, since it is important to specify the connection partner by using close proximity communication and close contact with each other, especially high-speed mobile terminals and in-vehicle terminals held by users who move at high speed on buses and trains. Therefore, it was not appropriate or applicable to the assumed system of this application.

  Patent Document 3 also discloses only a technique for starting up a wireless LAN by a pager that covers a wide communication area. That is, when the communication terminal passes through the spot area of the wireless LAN, nothing has been said about shortening the connection processing real time.

  Therefore, an object of the present invention is to enable a quick connection process from a sleep standby state and a stable communication to a wireless communication terminal moving through a spot-like wireless area at a high speed, and a larger amount of information. To provide a radio base station capable of transmitting and receiving, a radio communication terminal connected to the radio base station, and a radio communication system.

  The present invention is directed to a radio base station that communicates with a radio communication terminal. In order to achieve the above object, the transmission circuit of the present invention includes a main radio communication unit that performs communication according to a main radio communication method, a sub radio communication unit that performs communication according to a sub radio communication method, Setting information acquisition means for acquiring setting information for performing communication according to the main wireless communication method with the communication terminal. The sub wireless communication means transmits the setting information to the wireless communication terminal by communication according to the sub wireless communication method.

  The present invention is also directed to a wireless communication terminal that communicates with a wireless base station. In order to achieve the above object, the wireless communication terminal of the present invention includes a main wireless communication unit that performs communication according to a main wireless communication method, a sub wireless communication unit that performs communication according to a sub wireless communication method, Communication setting means for setting setting information for performing communication with the radio base station according to the main radio communication system. The sub wireless communication means receives the setting information from the radio base station by communication according to the sub wireless communication method.

  The present invention is also directed to a wireless communication system including a server that stores information, a wireless base station that transmits information, and a wireless communication terminal that receives information from the wireless base station. In order to achieve the above object, the server is connected to the radio base station, and the radio base station follows the first main radio communication means for performing communication according to the main radio communication system and the sub radio communication system. First sub wireless communication means for performing communication, and setting information acquisition means for acquiring setting information for performing communication according to the main wireless communication system with the wireless communication terminal. The first sub wireless communication unit transmits the setting information to the wireless communication terminal by communication according to the sub wireless communication method. The wireless communication terminal includes: a second main wireless communication unit that performs communication according to a main wireless communication method; a second sub wireless communication unit that performs communication according to a sub wireless communication method; and a wireless base station and a main wireless communication Communication setting means for setting setting information for performing communication in accordance with the system. The first sub wireless communication means receives setting information from the wireless base station by communication according to the sub wireless communication method.

  Advantageous Effects of Invention According to the present invention, a wireless communication terminal that moves at high speed through a spot-like wireless area can be quickly connected from a sleep standby state and can perform stable communication, and can transmit and receive a larger amount of information. It is possible to provide a radio base station that can perform communication, a radio communication terminal connected to the radio base station, and a radio communication system. That is, when a wireless communication terminal passes a wireless base station that transmits / receives content, the wireless communication terminal can shorten the connection time with the wireless base station that transmits / receives content, and ensures a long communication time with the wireless LAN base station. Therefore, it becomes possible to transmit / receive a large amount of content.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a schematic diagram illustrating the overall configuration of a wireless communication system according to the first embodiment of the present invention. In FIG. 1, the wireless communication system includes an integrated base station 101 and a communication terminal 201. In the example illustrated in FIG. 1, the integrated base station 101 is assumed to be connected to the server 10 capable of distributing information regarding various contents by wireless or wired communication. TECHNICAL FIELD The present invention relates to a technique for immediately starting communication with an integrated base station 101 and reducing the time for transmitting and receiving content when a communication terminal 201 passes through an area capable of communicating with the integrated base station 101. It is.

  Information distributed from the server 10 includes, for example, information on various contents such as news information, sports results, entertainment such as movies and music. These pieces of information are information related to contents that generally have few regional characteristics. Apart from these contents, the integrated base station 101 may receive information related to the area where the integrated base station 101 is located from the server 10 and transmit it to the communication terminal 201. Such content is called local content. Examples of local content include weather forecasts, map information, restaurant information, and local guide information in the vicinity of the integrated base station 101, for example. In the following, content with less regional characteristics and local content are collectively referred to simply as content.

  The communication terminal 201 is a communication terminal capable of receiving information while moving, such as a portable terminal, a PDA, a car navigation system, a portable navigation system PND (Personal Navigation Device), and so on. It is simply called a communication terminal. Examples of information that the communication terminal 201 uploads to the server 10 include images and video information captured by the communication terminal 201.

  As a communication method for transmitting and receiving content, a communication method based on a so-called wireless LAN standard (hereinafter referred to as a wireless LAN method) standardized by the IEEE 802.11 committee will be described as a representative. However, the present invention can be applied to all communication systems capable of performing spot communication in which communication stations that transmit and receive content operate independently, and will be described below using a wireless LAN system for convenience. It is not necessarily limited to a wireless LAN. For example, the present invention can also be applied to WiMAX placed so as to form a spot-like isolated wireless area, millimeter wave communication in which communication is performed by millimeter waves, communication using light, and the like.

  In addition, wireless communication methods used for transmission / reception of control signals are collectively referred to as control wireless communication. Control radio communication can be applied to all communication methods in which a transmitting station operates independently and can perform spot communication. However, since it is desirable to operate with power saving, a communication method such as Zigbee is cited as a candidate. By using low power consumption control wireless communication, battery consumption in the communication terminal 201 can be reduced. In addition, in control wireless communication, it is desirable to have a function (WOR: Wake On Radio) that automatically rises from the sleep state and starts communication when entering the communication area. As a result, the communication terminal 201 can stand by with very low power outside the communication area, and can enter the communication area to rise from the sleep state and automatically connect to the integrated base station 101. For this reason, the communication terminal 201 can always detect an area with power saving using control wireless communication, and can quickly connect to the integrated base station 101 as soon as the area is found.

  In terms of power saving, Bluetooth is also a candidate, but the method does not have a WOR function and cannot perform the above operation. In addition, it is desirable that the processing time until communication is started is short. In this respect as well, Zigbee is preferable to Bluetooth which requires a connection time of several seconds. As another candidate, a communication system developed as a short-range communication system (DSRC) for a high-speed vehicle is desirable because high-speed connection is possible. Since DSRC is a wireless method capable of transmitting information to a communication terminal at a high speed, the communication terminal can further reduce the time for transmitting and receiving content from the integrated base station by using this method. This is also desirable in this respect.

  As a physical layer method used for control wireless communication, in addition to the physical layer method used for each communication method described above, various specific low-power wireless devices such as UHF band, UWB (Ultra Wide Band), and the like may be used. good. Further, the communication is not necessarily limited to wireless communication, and communication using light such as an optical beacon can be used.

  FIG. 2 is a diagram illustrating a network configuration example of the wireless communication system according to the first embodiment of the present invention. In FIG. 2, the integrated base station 101 operates as a wireless LAN base station and also operates as a control wireless base station. That is, the integrated base station 101 functions as a wireless LAN base station to perform wireless LAN communication with the communication terminal 201 (wireless LAN communication function), and functions as a control wireless base station to perform control wireless communication with the communication terminal 201 (control wireless communication). Function). It is assumed that the integrated base station 101 has a function of transmitting / receiving various types of information (including contents) to / from the server 10.

  The integrated base station 101 (1) transmits profile information of the wireless LAN base station to the communication terminal 201 via control wireless communication. Hereinafter, the profile information of the wireless LAN base station is simply referred to as profile information. Profile information is setting information for connecting to the wireless LAN base station of the integrated base station 101. Specifically, the profile information includes a communication channel, WEP key information, and the like. Details of the profile information will be described later.

  The communication terminal 201 has a function of communicating with a wireless LAN base station (wireless LAN communication function) and a function of communicating with a control wireless base station (control wireless communication function). Note that the communication terminal 201 has a function of transmitting and receiving various types of information (including contents) to and from the server 10 and the integrated base station 101. When the communication terminal 201 passes through the control wireless communication area 20 of the integrated base station 101, the communication terminal 201 receives the profile information transmitted from the integrated base station 101 via the control wireless communication. The control radio communication area 20 is an area where the integrated base station 101 can perform control radio communication. The wireless LAN communication area 30 is an area where the integrated base station 101 can perform wireless LAN communication. The communication terminal 201 that has received the profile information (2) updates the setting information related to wireless LAN communication from the received profile information.

  The communication terminal 201 (3) starts connection with the wireless LAN base station of the integrated base station 101 via wireless LAN communication, and (4) transmits and receives various types of information after the connection is completed. The integrated base station 101 preferably arranges the control wireless communication area 20 inside the wireless LAN communication area 30. As a result, the communication terminal 201 that has received the profile information can immediately start connection with the integrated base station 101.

  FIG. 3 is a block diagram illustrating a configuration example of the integrated base station 101 according to the first embodiment of the present invention. In FIG. 3, the integrated base station 101 includes an external information communication unit 102, a memory unit 103, a control unit 104, a profile information storage unit 115, a main radio communication unit 105, and a sub radio communication unit 110. Each functional block is connected by a system bus and can transfer data to each other. The main wireless communication unit 105 is a communication unit having a wireless LAN communication function, and includes a transmission unit 106, a reception unit 107, and an antenna unit 113. The sub wireless communication unit 110 is a communication unit having a control wireless communication function, and includes a transmission unit 111, a reception unit 112, and an antenna unit 114. Here, a communication unit having a wireless LAN communication function is called a main wireless communication unit, and a communication unit having a control wireless communication function is called a sub-radio communication unit. Which is not the primary function and which is the secondary function.

  The external information communication unit 102 transfers content information from the server 10 to the memory unit 103 by using wired communication technology such as Ethernet (registered trademark) or each wireless communication technology, or conversely, information in the memory unit 103. Is a functional block for transferring the data to the server 10.

  The memory unit 103 is a functional block for storing information processed in the integrated base station 101. That is, the main wireless communication unit 105 is used for storing received / decoded content and for buffering transmission content. Further, the sub wireless communication unit 110 is used for storing received and decoded data and for buffering transmission data. Further, it is also used for storing contents received from the server 10 via the external information communication unit 102.

  The control unit 104 is configured mainly by a main radio control unit 108, a sub radio control unit 109, and a profile information storage unit 115, and controls the entire integrated base station 101.

  The main wireless communication unit 105 and the main wireless control unit 108 are functional blocks for transmitting and receiving data using a wireless communication technique according to the wireless LAN method. In the main wireless communication unit 105, the reception unit 107 decodes data transmitted from a communication terminal connected by wireless LAN communication, and the transmission unit 106 connects data in the memory unit 103 by wireless LAN communication. Processing to transmit to the communication terminal is performed. The main radio control unit 108 performs processing for controlling these processes, and has a configuration mainly including a CPU.

  The sub radio control unit 109 and the sub radio communication unit 110 are functional blocks for transmitting and receiving data through control radio communication. In the sub wireless communication unit 110, the reception unit 112 performs a decoding process of data transmitted from the communication terminal connected by control wireless communication, and the transmission unit 111 connects the data in the memory unit 103 by control wireless communication. Processing to transmit to the communication terminal is performed. The sub radio control unit 109 performs processing for controlling these processes, and has a configuration mainly including a CPU.

  The profile information storage unit 115 is a functional block for storing profile information necessary for another communication terminal to connect to the main wireless communication unit 105.

  The main radio control unit 108 transfers the profile information to the profile information storage unit 115. The sub radio communication unit 109 acquires profile information from the profile information storage unit 115 and transfers the profile information to the transmission unit 111 in the sub radio communication unit 110. The sub wireless communication unit 110 transmits profile information from the transmission unit 111.

  Here, the profile information will be described. The profile information includes a communication channel, BSSID, and WEP key information used by the main radio control unit 108.

  The profile information is not limited to the information described above as long as it is information for facilitating connection with the main radio control unit 108. For example, the profile information may include the ID and password information if authentication information is necessary to transmit and receive various types of information. As a result, a user who has received a control signal by control wireless communication can automatically transmit and receive various types of information. Also, the encryption method need not be limited to the one using the WEP key, and the same effect can be obtained even with higher strength WPA (Wi-Fi Protected Access).

  FIG. 4 is a block diagram illustrating a configuration example of the communication terminal 201 according to the first embodiment of the present invention. In FIG. 4, the communication terminal 201 includes a control unit 202, a main radio communication unit 206, a sub radio communication unit 210, a memory unit 220, a display control unit 216, an input unit 217, and a display unit 218. . Each functional block is connected by a system bus and can transfer data to each other.

  The main radio communication unit 206 includes a transmission unit 207, a reception unit 208, and an antenna unit 209. Further, the sub wireless communication unit 210 includes a transmission unit 211, a reception unit 212, and an antenna unit 213. The memory unit 220 includes a profile information storage unit 214, a transmission memory unit 219, and a reception memory unit 215.

  The main radio control unit 204 and the main radio communication unit 206 are functional blocks for transmitting and receiving data using a radio communication technique according to the wireless LAN method. In the main wireless communication unit 206, the reception unit 208 performs a decoding process on data transmitted from the integrated base station 101 and other base stations connected by wireless LAN communication, and the transmission unit 207 transmits data stored in the transmission memory unit 219. Is transmitted to the integrated base station 101 and other base stations connected by wireless LAN communication. The main radio control unit 204 performs processing for controlling these processes, and has a configuration mainly including a CPU.

  The sub radio control unit 203 and the sub radio communication unit 210 are functional blocks for performing data transmission / reception by control radio communication. In the sub radio communication unit 210, the reception unit 212 performs a decoding process on data transmitted from the integrated base station 101 connected by control radio communication, and the transmission unit 211 connects data in the memory unit 220 by control radio communication. The transmission to the integrated base station 101 is performed. The sub radio control unit 203 performs a process for controlling these processes, and has a configuration mainly including a CPU.

  It is desirable that the sub radio control unit 203 and the sub radio communication unit 210 perform intermittent reception. Since the communication terminal 201 generally operates on a battery, power consumption during standby can be reduced by performing intermittent reception.

  Note that the integrated base station 101 desirably increases the proportion of time during which data is transmitted in the data transmission interval (ie, transmission duty) in the control wireless communication. When the communication terminal 201 determines the presence of the integrated base station 101 by detecting the power level of transmission data using control wireless communication, the time until the integrated base station 101 is discovered more by increasing the transmission duty. Because it becomes shorter. Conversely, the effect of power saving can be expected by extending the intermittent reception interval.

  The integrated base station 101 may have a mechanism for repeatedly transmitting transmission data and repeatedly transmitting data such as profile information. As a result, the transmission duty can be increased, and the effect of shortening the connection time or saving power can be obtained. At the same time, since the communication terminal 201 receives the same data a plurality of times, a reduction in the data reception error rate can be expected.

  The memory unit 220 is a functional block for storing information processed in the communication terminal 201, and includes a profile information storage unit 214, a transmission memory unit 219, and a reception memory unit 215. The transmission memory unit 219 is used for storing various information (including content) transmitted by the main radio communication unit 206 and the sub radio communication unit 210. The reception memory unit 215 is used for storing various types of information received by the main wireless communication unit 206 and the sub wireless communication unit 210.

  The profile information storage unit 214 is used for storing the profile information of the integrated base station 101 transferred by the sub radio control unit 203.

  The main radio control unit 204 includes a profile information setting unit 205. The profile information setting unit 205 acquires profile information of the integrated base station 101 to be connected (that is, the wireless LAN base station) from the profile information storage unit 214. Thereby, the profile information setting unit 205 can update the connection information to the wireless LAN base station included in the main wireless control unit 204.

  The display control unit 216 transfers information stored in the reception memory unit 215 to the display unit 218 in accordance with an input instruction from the input unit 217. The display unit 218 displays information stored in the reception memory unit 215 under the control of the display control unit 216. The timing for displaying the received information will be described later.

  FIG. 5 is a flowchart showing an example of the operation when the integrated base station 101 stores the profile information of the wireless LAN base station. 3 and 5, first, in the integrated base station 101, the main radio control unit 108 performs communication settings for performing wireless LAN communication (step S101). The details of this setting, which will be described later, are communication channel settings and the like. This communication setting is preferably settable by the user, but may be set at the time of shipment in advance. The main radio control unit 108 stores the communication settings as profile information of the wireless LAN base station in the profile information storage unit 115 (step S102).

  FIG. 6 is a flowchart illustrating an example of an operation when the integrated base station 101 performs control wireless communication. With reference to FIGS. 3 and 6, first, in integrated base station 101, secondary radio control section 109 acquires profile information of the wireless LAN base station from profile information storage section 115 (step S111). Next, the sub radio control unit 109 refers to the transmission queue and determines whether there is information (packet) scheduled to be transmitted by control radio communication (step S112). When there is information (packet) scheduled to be transmitted in the transmission queue, the sub wireless communication unit 110 adds profile information to the information (packet) scheduled to be transmitted (step S113). When there is no information (packet) scheduled to be transmitted in the transmission queue, the sub wireless communication unit 110 newly generates a packet including profile information (step S114). The sub radio communication unit 110 transmits a packet including the profile information described above (hereinafter referred to as a control radio packet) via the transmission unit 111 and the antenna unit 114 (step S115).

  Here, the configuration of the frame of the control radio packet will be described. FIG. 7 is a diagram illustrating an entire frame of the control wireless packet 401. The control radio packet 401 is assumed to have two types of frame configurations: a packet in which profile information is added to a part of normal data used in control radio communication, and a packet dedicated to profile information. FIG. 7 shows a packet in which profile information is added to a part of normal data used in control wireless communication. Although not shown in the figure, the profile information dedicated packet is obtained by removing the control communication data frame 404 from the packet shown in FIG.

  Referring to FIG. 7, control radio packet 401 includes control radio header 402, profile information 403, and control radio data frame 404. The control radio header 402 and the control radio data frame 404 include header information and data information for control radio communication. The profile information 403 includes information regarding the wireless LAN communication channel 406, the wireless LAN BSSID 405, the wireless LAN WEP key 407, and the like.

  Further, it is desirable that the profile information 403 is stored in an area such as a header portion that can be decoded without performing a connection procedure with the integrated base station 101. As a result, the communication terminal 201 can immediately receive the profile information 403, and as a result, there is an effect that the waiting time for the communication terminal 201 to connect via the wireless LAN is shortened.

  The profile information 403 may be information necessary for connection with the integrated base station 101 through the wireless LAN, and is not necessarily limited to the information.

  FIG. 8 is a flowchart illustrating an example of an operation when the communication terminal 201 receives a control wireless packet. 4 and 8, in communication terminal 201, first, sub-radio communication unit 210 receives control radio packet 401 by control radio communication (step S201). Next, the sub radio control unit 203 determines ON / OFF of the content reception mode (step S202), and transitions to a normal state when the content reception mode is OFF (step S204).

  The content reception mode is a mode disclosed in the present invention that determines whether or not to automatically receive content when the user passes through the communication area of the integrated base station 101. It is desirable that the user sets ON / OFF of the content reception mode on the communication terminal 201 in advance.

  If the content reception mode is ON, the sub radio control unit 203 determines whether or not the profile information 403 is included in the control radio packet 401 received by the control radio communication (step S203). If the profile information 403 is included, the sub radio control unit 203 stores the profile information 403 in the profile information storage unit 214 (step S205). If the profile information 403 is not included, a transition is made to a normal state (step S204).

  Next, the profile information setting unit 205 performs wireless LAN communication setting processing based on the profile information 403 stored in the profile information storage unit 214 (step S206). Details of the wireless LAN communication setting process (step S206) will be described later. The communication terminal 201 (main radio control unit 204 and main radio communication unit 206) starts connection of the integrated base station 101 that has received the profile information 403 to the wireless LAN base station (step S207).

  FIG. 9 is a flowchart illustrating an example of an operation when the communication terminal 201 starts connection to the wireless LAN base station of the integrated base station 101. In FIG. 9, only the operation when the communication terminal 201 receives content will be described. The communication terminal 201 can upload information to the server 10 after connecting to the wireless LAN base station. 4 and 9, in communication terminal 201, main radio control section 204 controls main radio communication section 206 to attempt a connection process of integrated base station 101 with the wireless LAN base station. Specifically, the main radio control unit 204 controls the main radio communication unit 206 to try to receive a beacon transmitted by the main radio communication unit 105 of the integrated base station 101. The main radio control unit 204 determines whether or not the connection process of the integrated base station 101 with the wireless LAN base station is successful (step S208). If the connection is not established, the main radio control unit 204 transitions to a normal state (step S209). When the connection is established, the main radio control unit 204 controls the reception unit 208 of the main radio communication unit 206 to download the content and information related to the content from the server 10 via the integrated base station 101. (Step S210). Further, when the communication terminal 201 has information to be uploaded to the server 10, the information may be uploaded to the server 10.

  In the communication terminal 201, the display control unit 216 waits for input of a content display instruction after downloading the content (step S211). When a content display instruction is input from the input unit 217, the content is displayed on the display unit 218 (step S212). The reason why the input unit 217 waits for the input of the content display instruction is to display the content according to the user's instruction when the user wants to display the content.

  FIG. 10 is a flowchart illustrating an example of an operation when the communication terminal 201 displays content on the display unit 218. Referring to FIG. 10, in communication terminal 201, input unit 217 waits for a content display instruction to be input (step S2001), and when a content display instruction is input, content is displayed to display control unit 216. A display signal is transmitted (step S2002). When the content display signal is transmitted to the display control unit 216, the display control unit 216 displays the content on the display unit 218.

  Further, the communication terminal 201 may be configured to select whether to display the content received by the user. FIG. 11 is a diagram illustrating an example of content displayed on the display unit 218 of the communication terminal 201. As shown in FIG. 11, for example, a display screen 501 for displaying content is displayed on the display unit 218 of the communication terminal 201. If the user selects display of content, a content menu screen 502 is displayed. Is displayed. Further, the communication terminal 201 may select information to be displayed in the received content using the filtering information. At this time, the communication terminal 201 may acquire filtering information (general filter) from the integrated base station 101, or may generate filtering information (personal filter) from history information stored in the communication terminal 201. .

  Returning to the description of FIG. Further, it is assumed that the user makes an access request for a link to content that has not been downloaded while browsing the content. Such content is called content detailed information. As the detailed content information, related information linked in the news received as the content can be considered. Therefore, the communication terminal 201 determines whether or not there is a request for detailed content information from the user via the input unit 217 (step S213).

  If there is a request for the detailed content information, the communication terminal 201 checks the connection with the main radio communication unit 105 of the integrated base station 101 (step S214). The requested detailed content information is downloaded (step S215). When not connected to the main wireless communication unit 105, the communication terminal 201 tries again to connect to the wireless LAN base station (that is, the main wireless communication unit 105 of the integrated base station 101) that acquired the profile information (step S216). ). The communication terminal 201 determines whether or not the connection is successful (step S217). If the connection is successful, the operation of step S215 is performed. If the connection fails, in the communication terminal 201, the main radio control unit 204 starts searching for a wireless LAN base station (step S218). If there is a connectable wireless LAN base station as a result of the search, the connectable wireless LAN base station is displayed on the display unit 218 (step S219).

  If the user selects an arbitrary base station from the wireless LAN base stations (step S220), the main wireless control unit 204 connects to the wireless LAN base station selected by the user via the main wireless communication unit 206. Is started (step S221), and the detailed information of the content is downloaded (step S215). When the detailed content information is downloaded, the communication terminal 201 displays the detailed content information on the display unit 218 (step S222). As described above, the communication terminal 201 does not receive the content and the detailed content information at a time, but first receives only the content, so that the user can know the outline of the information in a short time.

  Next, details of the wireless LAN communication setting process (step S206) performed by the communication terminal 201 will be described. FIG. 12 is a flowchart illustrating an example of detailed operation of the wireless LAN communication setting process (step S206) in the communication terminal 201. Referring to FIGS. 4 and 12, in communication terminal 201, profile information setting unit 205 first checks the activation state of main wireless communication unit 206 (step S301). When the main wireless communication unit 206 is not in the activated state, the mode is changed to the normal mode (step S302).

  When the main wireless communication unit 206 is already activated, the profile information setting unit 205 checks whether the main wireless communication unit 206 is used for other communication (step S303). If not used, the profile information setting unit 205 acquires profile information from the profile information storage unit 214 (step S305). If the profile information is being used, the profile information setting unit 205 waits until the use of the main wireless communication unit 206 is completed (step S304), and then performs the process of step S305. Next, the profile information setting unit 205 updates the setting of the main wireless communication unit 206 according to the acquired profile information (step S306).

  Next, an operation when the integrated base station 101 is connected from the communication terminal 201 by wireless LAN communication will be described. FIG. 13 is a flowchart illustrating an example of the operation of the integrated base station 101. With reference to FIG. 13, first, the integrated base station 101 connects to the communication terminal 201 by wireless LAN communication (step S401). Next, the integrated base station 101 receives content from the server 10 in accordance with a request from the communication terminal 201 (step S402). Thereafter, the integrated base station 101 transmits the content received from the server 10 to the communication terminal 201 (step S403). If there is information uploaded from the communication terminal 201, the integrated base station 101 may transmit the information to the server 10.

  Note that the content may always be displayed on the standby screen 3501 of the communication terminal 201 as shown in FIG. As a result, the user can easily enjoy the content simply by browsing the screen of the communication terminal 201.

  An example of the operation when the communication terminal 201 is a mobile terminal for pedestrians such as a mobile phone terminal or a PDA is as described above. On the other hand, when the communication terminal 201 is a car navigation system or a PND, displaying content while driving may lead to an accident.

  For this reason, it is desirable that the communication terminal 201 use a method of detecting the movement of the vehicle on which the car navigation system or the PND is riding, and displaying the content when detecting that the vehicle is stationary or quasi-stationary. As a method of detecting the moving speed of the vehicle, a method of detecting the rotational speed of the wheel is desirable, but a method of measuring position information by GPS or the like and confirming a movement transition of the position information, or a car navigation system or PND includes an acceleration sensor. Alternatively, a method of detecting whether the vehicle is moving or stationary by detecting acceleration may be used.

(Second Embodiment)
The wireless communication system according to the second embodiment can turn on / off a power supply having a wireless LAN communication function as compared with the first embodiment. The wireless communication system according to the second embodiment differs from the wireless communication system according to the first embodiment in the configuration of the integrated base station 601 and the communication terminal 801. In the second embodiment, the integrated base station 601 adds activation information for activating the wireless LAN communication function of the communication terminal 801 to the control wireless packet, and transmits it to the communication terminal 801. When the communication terminal 801 receives the control wireless packet including the activation information, the communication terminal 801 activates a power supply having a configuration having a wireless LAN communication function. In addition, the communication terminal 801 shifts the power supply having the wireless LAN communication function to the sleep state under certain conditions.

  In the wireless LAN communication system, a wireless station that has received a packet performs a process of determining a destination after decoding up to the MAC header of the packet, and discarding subsequent packets if the packet is not addressed to itself. For this reason, in an environment where there are a plurality of wireless stations that communicate on the same channel, unnecessary reception decoding occurs when the wireless LAN communication function is activated. This is called overhearing. Reducing power consumption due to overhearing is an important issue for battery-powered communication terminals.

  According to the second embodiment of the present invention, the communication terminal 801 can perform wireless LAN communication with the integrated base station 601 by receiving the control wireless packet (that is, the wireless LAN communication area 30). Is detected. When entering the wireless LAN communication area 30, the communication terminal 801 activates a configuration having a wireless LAN communication function. This eliminates the need for the communication terminal 801 to constantly turn on a power supply having a wireless LAN communication function in order to transmit and receive content, thereby reducing power consumption due to overhearing and using the communication terminal 801. The effect of extending the time can be expected. Since the basic configuration is the same as that shown in the first embodiment, the same portions are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 15 is a block diagram illustrating a configuration example of the integrated base station 601 according to the second embodiment of the present invention. In FIG. 15, the integrated base station 601 further has a main radio activation information storage unit 602 as compared with the integrated base station 101 according to the first embodiment. The main radio activation information storage unit 602 holds activation information for activating the configuration having the wireless LAN communication function of the communication terminal 801, and transmits the activation information to the sub radio control unit 109, thereby controlling wireless communication. Add activation information to the packet.

  FIG. 16 is a block diagram illustrating a configuration example of a communication terminal 801 according to the second embodiment of the present invention. In FIG. 16, the communication terminal 801 includes a control unit 802, a main radio communication unit 804, a sub radio communication unit 210, a memory unit 220, a display control unit 216, an input unit 217, and a display unit 218. . Each functional block is connected by a system bus and can transfer data to each other. The main wireless communication unit 804 is a communication unit having a wireless LAN communication function, and includes a transmission unit 207, a reception unit 208, an antenna unit 219, and a main wireless power supply unit 807.

  In the control unit 802, the main radio control unit 805 includes a profile information setting unit 205 and a main radio power supply control unit 806. When the main wireless power supply control unit 806 receives the activation information by the control wireless packet from the integrated base station 601, if the main wireless power supply unit 807 is turned off, the main wireless power supply control unit 806 performs an operation of turning on the power supply.

  FIG. 17 is a diagram illustrating a frame configuration example of a control radio packet used in the second embodiment of the present invention. Referring to FIG. 17, profile information 702 of wireless control packet 701 includes wireless LAN activation information 703 in addition to wireless LAN communication channel 406, wireless LAN BSSID 405, and wireless LAN WEP key 407.

  FIG. 18 is a flowchart showing an example of the operation of the integrated base station 601 according to the second embodiment of the present invention. With reference to FIG.15 and FIG.18, in the integrated base station 601, the sub radio | wireless control part 109 acquires the profile information of a wireless LAN base station from the profile information storage part 115 first (step S121). Next, the sub radio control unit 109 refers to the transmission queue and determines whether there is information (packet) scheduled to be transmitted by control radio communication (step S122). When there is information (packet) to be transmitted in the transmission key, the sub wireless communication unit 110 adds profile information and activation information to the information (packet) to be transmitted (step S123). If there is no information (packet) scheduled to be transmitted in the transmission queue, the sub wireless communication unit 110 newly generates a packet including profile information and activation information (step S124). The sub radio communication unit 110 transmits the packet including the profile information and the activation information (that is, the control radio packet 701) via the transmission unit 111 and the antenna unit 114 (step S125).

  Next, the operation of the communication terminal 801 will be described. The operation when the communication terminal 801 receives the control wireless packet 701 and starts the connection to the wireless LAN base station of the integrated base station 601 is the same as that of the first embodiment except for the wireless LAN communication setting process (step S206). Since it is the same, description is abbreviate | omitted using FIG.8 and FIG.9. Here, details of the wireless LAN communication setting process (step S206) performed by the communication terminal 801 will be described. FIG. 19 is a diagram illustrating an example of detailed operation of the wireless LAN communication setting process (step S206) in the communication terminal 801.

  Referring to FIGS. 16 and 19, in communication terminal 801, profile information setting unit 205 first checks the activation state of the wireless LAN communication function (that is, main wireless communication unit 804) (step S311). If the main wireless communication unit 804 is not in the activated state, the main wireless power supply control unit 806 controls the main wireless power supply unit 807 to activate the main wireless communication unit 804 (step S312).

  When the main wireless communication unit 804 is already activated, the profile information setting unit 205 checks whether or not the main wireless communication unit 804 is used for other communication (step S313). If not used, the profile information setting unit 205 acquires profile information from the profile information storage unit 214 (step S315). If the profile information is being used, the profile information setting unit 205 waits until the use of the main wireless communication unit 804 is completed (step S314), and then performs the process of step S315. Next, the profile information setting unit 205 updates the setting of the main wireless communication unit 206 according to the acquired profile information (step S316).

  The operation when the communication terminal 801 changes the main wireless communication unit 804 to the sleep state after receiving the content will be described with reference to FIGS. 20 to 23. 20 to 23 are flowcharts illustrating an example of an operation when the communication terminal 801 shifts the main wireless communication unit 804 to the sleep state. FIG. 20 illustrates an example of an operation for transitioning the main wireless communication unit 804 to the sleep state when the content download is completed. Referring to FIG. 20, when communication terminal 201 completes the download of the content (step S501), main radio power supply control unit 806 controls main radio power supply unit 807 to shift main radio communication unit 804 to the sleep state. (Step S502). Note that if there is content to be uploaded to the server 10, the communication terminal 801 is preferably set to sleep after the content upload is completed.

  FIG. 21 illustrates an example of an operation of causing the main wireless communication unit 804 to transition to the sleep state when the connection process with the integrated base station 601 fails. Referring to FIG. 21, communication terminal 801 performs connection processing with integrated base station 601 (step S601), and determines whether or not connection with integrated base station 601 has been established (step S602). If the connection with the integrated base station 601 has failed N times or more (step S603), the main wireless power control unit 806 controls the main wireless power supply unit 807 to shift the main wireless communication unit 804 to the sleep state (step S603). S604). This suppresses unnecessary power consumption due to activation of the main wireless communication unit 804 when the communication terminal 801 cannot connect to the integrated base station 601 due to movement of the communication terminal 801 or a change in propagation environment. Because.

  FIG. 22 illustrates an example of an operation for causing the main wireless communication unit 804 to transition to the sleep state when the main wireless communication unit 804 has not been used for a certain period of time. Referring to FIG. 22, when main radio communication unit 804 has not been used for a certain period (step S701), main radio power supply control unit 806 controls main radio power supply unit 807 to sleep main radio communication unit 804. The state is changed (step S702). Further, the communication terminal 801 can cause the main radio communication unit 804 to transition to the sleep state even if the main radio communication unit 804 is connected to the integrated base station 101. FIG. 23 illustrates an example of an operation of causing the main wireless communication unit 804 to transition to the sleep state when the main wireless communication unit 804 has not received content for a certain period of time. Referring to FIG. 23, even when main radio communication unit 804 is connected to integrated base station 101, when main radio communication unit 804 has not received content for a certain period of time (step S801), main radio power control The unit 806 controls the main wireless power supply unit 807 to cause the main wireless communication unit 804 to transition to the sleep state (step S802).

(Third embodiment)
The wireless communication system according to the third embodiment of the present invention is characterized in that the functions of the integrated base station described in the first and second embodiments are realized by a plurality of base stations. Hereinafter, a third embodiment of the present invention will be described using a configuration in which the function of the integrated base station 601 (see FIG. 15) according to the second embodiment is realized by a plurality of base stations.

  That is, the function of the integrated base station 601 according to the second embodiment includes a parent base station responsible for a portion related to a wireless LAN communication function for transmitting and receiving content, and a child base station responsible for a portion related to a control wireless communication function The structure divided into will be described.

  Hereinafter, the integrated base station according to the third embodiment will be described using an example in which the functions of the integrated base station 601 according to the second embodiment are realized by a plurality of base stations. Since the basic configuration is the same as that shown in the second embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 24 is a schematic diagram illustrating the overall configuration of a wireless communication system according to the third embodiment of the present invention. In FIG. 24, the wireless communication system includes a parent base station 901, a child base station 902, and a communication terminal 801. In the example illustrated in FIG. 24, the parent base station 901 is assumed to be connected to the server 10 capable of distributing information regarding various contents by wireless or wired communication. The communication terminal 801 transmits and receives information to and from the parent base station 901 and the child base station 902 when passing through the communication area of the parent base station 901 and the child base station 902.

  FIG. 25 is a diagram illustrating a network configuration example of a wireless communication system according to the third embodiment of the present invention. In FIG. 25, the parent base station 901 (1) notifies the child base station 902 of the profile information of the wireless LAN base station. The child base station 902 that has received the profile information (2) transmits the profile information to the communication terminal 801. The communication terminal 201 that has received the profile information in the control wireless communication area 20 (3) updates the setting information related to the wireless LAN communication from the received profile information, and (4) the wireless LAN base station of the parent base station 901 and the wireless LAN Initiate connection via communication. After connecting to the wireless LAN base station of the parent base station 901, the communication terminal 801 transmits and receives (5) information.

  FIG. 26 is a block diagram illustrating a configuration example of a parent base station 901 according to the third embodiment of the present invention. In FIG. 26, the parent base station 901 includes an external information communication unit 1003, a memory unit 1004, a control unit 1001, a main radio activation information storage unit 1009, a profile information storage unit 1010, and a main radio communication unit 1005. Including. Each functional block is connected by a system bus and can transfer data to each other. The main wireless communication unit 1005 is a communication unit having a wireless LAN communication function, and includes a transmission unit 1006, a reception unit 1007, and an antenna unit 1008.

  The parent base station 901 shown in FIG. 26 has a configuration related to the control radio communication function (that is, the sub radio communication unit 110 and the sub radio control unit 109) as compared with the integrated base station 601 shown in FIG. It is not configured. Therefore, description of each functional block of the parent base station 901 is omitted with reference to FIG.

  FIG. 27 is a block diagram illustrating a configuration example of the child base station 902 according to the third embodiment of the present invention. In FIG. 27, the child base station 902 includes a memory unit 1101, a control unit 1102, a main radio communication unit 1105, and a sub radio communication unit 1109. Each functional block is connected by a system bus and can transfer data to each other.

  The control unit 1102 includes a main radio control unit 1104 and a sub radio control unit 1103. The main wireless communication unit 1105 is a communication unit having a wireless LAN communication function, and includes a transmission unit 1106, a reception unit 1107, and an antenna unit 1108. The sub wireless communication unit 1109 is a communication unit having a control wireless communication device function, and includes a transmission unit 1110, a reception unit 1111, and an antenna unit 1112.

  In the child base station 902 shown in FIG. 27, the main radio communication unit 1105 and the sub radio communication unit 1109 are the same as the main radio communication unit 105 and the sub radio communication unit 110 of the integrated base station 601 shown in FIG. It is the composition. Therefore, descriptions of the main radio communication unit 1105 and the sub radio communication unit 1109 are omitted with reference to FIG.

  FIG. 28 is a flowchart showing an example of the operation when the parent base station 901 transmits the profile information of the wireless LAN base station to the child base station 902. Referring to FIG. 26 and FIG. 28, in the parent base station 901, the main radio control unit 1002 performs communication settings for performing wireless LAN communication (step S901). The setting contents are the same as those described in the first embodiment. The main wireless communication unit 1005 stores the communication setting as profile information of the wireless LAN base station in the profile information storage unit 1010 (step S902). Also, the main radio communication unit 1005 transmits profile information to the child base station 902 via the main radio communication unit 1005 (step S903).

  FIG. 29 is a flowchart illustrating an example of an operation when the child base station 902 performs control wireless communication. 27 and 29, in the child base station 902, the main radio control unit 1104 receives the profile information from the parent base station 901 via the main radio communication unit 1105 (step S1001). The main radio control unit 1104 stores the received profile information in the memory unit 1101 (step S1002).

  The sub radio control unit 1103 refers to the transmission queue and determines whether there is information (packet) scheduled to be transmitted by control radio communication (step S1103). If there is information (packet) scheduled to be transmitted in the transmission queue, the sub-radio control unit 1103 adds profile information to the information (packet) scheduled to be transmitted (step S1104). If there is no information (packet) to be transmitted in the transmission queue, the sub radio control unit 1103 newly generates a packet including profile information (step S1105). The sub wireless communication unit 1109 transmits a packet including the above-described profile information (that is, a control wireless packet) via the transmission unit 1110 and the antenna unit 112 (step S1106).

  As for the operation of the communication terminal 801, the process of receiving profile information from the sub radio communication unit 110 of the integrated base station 601 (see FIG. 15) according to the second embodiment is the same as the child base station 902 (see FIG. 27). The sub-radio communication unit 1109 is used. Further, it is assumed that the process of receiving content from the main radio communication unit 105 of the integrated base station 601 (see FIG. 15) is performed from the main radio communication unit 1005 of the parent base station 901 (see FIG. 26).

  In the present invention, for example, when the integrated base station 101 (see FIG. 3) according to the first embodiment and the integrated base station 601 (see FIG. 15) according to the second embodiment are arranged in the city, they are installed. It is assumed that a large integrated base station cannot be installed at a desired location due to space problems. With the configuration of the third embodiment, the parent base station 901 (see FIG. 26) transmits content to a relatively large area, and the child base station 902 (see FIG. 27) is used, so that there are many users. Since base stations can be flexibly arranged, there is an advantage that the flexibility of system construction is improved.

(Fourth embodiment)
In the integrated base station according to the first and second embodiments of the present invention and the parent base station according to the third embodiment, the content exchange with the communication terminal is performed using wireless LAN communication. The integrated base station according to the fourth embodiment is characterized in that the content is replaced with a broadcast mode in a wireless LAN system. Except for the part related to the mechanism of the broadcast mode, it is basically the same as the first to third embodiments.

  In this embodiment, as an example, a description will be given using an example in which the wireless LAN communication portion of the integrated base station 601 (see FIG. 15) according to the second embodiment is replaced with broadcast wireless LAN communication.

  FIG. 30 is a diagram illustrating a network configuration example of a wireless communication system according to the fourth embodiment of the present invention. In FIG. 30, the integrated base station 1201 (1) receives content from the server 10, and (2) transmits profile information by control wireless communication. The communication terminal 801 that has received the profile information (3) performs communication settings related to wireless LAN communication, and (4) receives broadcast content by wireless LAN communication. When the user browses the broadcast content, and access to the content that is not broadcast occurs, (6) the communication terminal 201 performs a connection process with the integrated base station 1201. Here, content that is not broadcast is called detailed content. When connected to the integrated base station 1201, the communication terminal 801 receives (7) detailed content and (8) displays the detailed content.

  FIG. 31 is a block diagram illustrating a configuration example of the integrated base station 1201 according to the fourth embodiment of the present invention. In FIG. 31, the integrated base station 1201 is further provided with a broadcast content storage unit 1301 in the memory unit 103 compared to the integrated base station 601 according to the second embodiment (see FIG. 15). The broadcast content storage unit 1301 stores the content of the server 10 received from the external information communication unit 102. The main radio control unit 108 broadcasts the accumulated content via the main radio communication unit 105. The profile information storage unit 115 acquires information necessary for receiving the content broadcast from the main radio control unit 108 from the main radio control unit 108.

  FIG. 32 is a flowchart showing an example of operations when the integrated base station 1201 broadcasts content. Referring to FIG. 32, the integrated base station 1201 receives the content to be broadcast in advance from the server 10 (step S1101). Next, the integrated base station 1201 caches the received content in the broadcast content storage unit 1301, and broadcasts the cached content (step S1102).

  FIG. 33 is a flowchart illustrating an example of an operation when the integrated base station 1201 transmits detailed content to the communication terminal 801. Referring to FIG. 33, integrated base station 1201 connects to communication terminal 801 (step S1201), and determines whether there is a request for detailed content from communication terminal 801 (step S1202). Next, when there is a request for detailed content from the communication terminal 801, the integrated base station 1201 receives the content from the server 10 in response to the request (step S1203), and transmits the received content to the communication terminal 801. (Step S1204).

  FIG. 34 is a flowchart illustrating an example of an operation when the communication terminal 801 receives a control wireless packet. The frame configuration shown in FIG. 7 is used for the frame configuration of the control radio packet. Moreover, about the structure of the communication terminal 801, the structure shown in FIG. 16 is used. Referring to FIG. 34, in communication terminal 801, sub radio communication section 210 receives control radio packet 401 by control radio communication (step S1301). Next, the control unit 802 determines ON / OFF of the content reception mode (step S1302), and transitions to a normal state when the content reception mode is OFF (step S1304).

  The content reception mode is a mode disclosed in the present invention that determines whether or not to automatically receive content when the user passes through the communication area of the integrated base station 1201. It is desirable that the user sets ON / OFF of the content reception mode on the communication terminal 801 in advance.

  When the content reception mode is ON, the control unit 802 determines whether or not the profile information 403 is included in the control wireless packet 401 received by control wireless communication (step S1303). If the profile information 403 is included, the control unit 802 stores the profile information 403 in the profile information storage unit 214 (step S1305). If the profile information 403 is not included, the control unit 802 returns to a normal state. A transition is made (step S1304).

  The profile information setting unit 205 performs wireless LAN communication setting processing based on the profile information 403 stored in the profile information storage unit 214 in order to receive content broadcast by the wireless LAN base station (step S1306). . For details of the wireless LAN communication setting process (step S1306), the process shown in FIG. 12 is used.

  FIG. 35 is a flowchart illustrating an example of an operation when the communication terminal 801 starts connection to the wireless LAN base station of the integrated base station 1201. Referring to FIGS. 16 and 35, in communication terminal 801, main radio control section 805 controls main radio communication section 804 to check whether the content transmitted by the wireless LAN base station can be received. (Step S1307). If the content cannot be received, the mode is changed to the normal mode (step S1308). If the content can be received, the main radio control unit 805 controls the main radio communication unit 804 to download the content (step S1309).

  In the communication terminal 801, the display control unit 216 waits for input of a content display instruction after downloading the content (step S1310). When a content display instruction is input from the input unit 217, the content is displayed on the display unit 218 (step S1311). The reason why the input unit 217 waits for the input of the content display instruction is to display the content according to the user's instruction when the user wants to display the content.

  Further, it is assumed that the user makes an access request for a link to detailed content that is not broadcasted while browsing the content. Therefore, the communication terminal 801 determines whether there is a request for detailed content information from the user via the input unit 217 (step S1312).

  If there is a request for the detailed content information, the communication terminal 801 tries to connect to the wireless LAN base station (that is, the main wireless communication unit 105 of the integrated base station 1201) that acquired the profile information (step S1313). The communication terminal 801 determines whether or not the connection is successful (step S1314). If the connection is successful, the content detailed information requested by the user is downloaded (step S1319). If the connection fails, in the communication terminal 801, the main radio control unit 805 starts searching for a wireless LAN base station (step S1315). If there is a connectable wireless LAN base station as a result of the search, the connectable wireless LAN base station is displayed on the display unit 218 (step S1316).

  If the user selects an arbitrary base station from the wireless LAN base stations (step S1317), the main wireless communication unit 804 starts connection with the wireless LAN base station selected by the user (step S1318), and the content Detailed information is downloaded (step S1319). When the content detailed information is downloaded, the communication terminal 801 displays the content detailed information on the display unit 218 (step S1320).

  Note that the main radio communication unit 105 of the integrated base station 1201 in this embodiment has both a function of broadcasting content and a function of connecting to the communication terminal 801 and transmitting various types of information (including content). Shall.

  FIG. 36 is a diagram illustrating an example of a transmission sequence between the integrated base station 1201 and the communication terminal 801. With reference to FIG. 36, the integrated base station 1201 performs a process of periodically repeating a broadcast period in which broadcasting is performed and a communication period in which the communication terminal 801 can communicate. In the broadcast period, the integrated base station 1201 broadcasts the content 1401 to the communication terminal 801. In the communication period, the communication terminal 801 connects to the integrated base station 1201 and performs a process of receiving the detailed content 1402.

  FIG. 37 is a diagram illustrating a configuration example of the content 1401 broadcasted by the integrated base station 1201. Referring to FIG. 37, content 1401 includes meta information 1501 and content content 1502. The meta information 1501 indicates content attributes and categories. For news information, genre information such as “sports” and “politics / economics”, and for restaurants, “Japanese food”, “Western food”, etc. Includes classification information. Content content 1502 indicates the main part of the content such as news information, restaurant name and URL, and telephone number.

  The meta information 1501 and the content content 1502 have a loop configuration (carousel structure) in which individual packets are connected. The integrated base station 1201 broadcasts the content sequentially for each frame, so that the content is periodically broadcast. Since the content 1401 broadcasted by the integrated base station 1201 has a carousel structure, if the communication terminal 801 receives the content of the integrated base station 1201 for a certain period of time, it can receive all broadcast content, but cannot receive it. Processing such as requesting re-broadcasting of the content becomes unnecessary.

  Note that the configuration of the content 1401 to be broadcast is not necessarily limited to this form in which the meta information 1501 and the content content 1502 are separated. That is, the configuration of the content 1401 to be broadcast may be a configuration in which meta information 1501 is added to each content content 1502. As a result, when the display content is identified by the meta information, the user receives the content content immediately after receiving the meta information, so that the received information can be displayed immediately.

  The present embodiment is characterized in that content is broadcast from the integrated base station 1201. For this reason, when content broadcast from the integrated base station 1201 is received, authentication between the communication terminal 801 and the integrated base station 1201 becomes unnecessary, and the standby time until the content is received is further shortened. For this reason, the communication terminal 801 can receive a larger amount of content while passing through the wireless LAN communication area 30.

  Further, when a plurality of communication terminals 801 receive the same content, it is more efficient to simultaneously distribute the content to the plurality of communication terminals 801 by broadcasting than to transmit the content to individual communication terminals 801.

  In this embodiment, it is also possible to adopt a mode in which a control radio packet used in control radio communication has a carousel structure and is broadcast to a plurality of communication terminals 801. The control wireless packets received by the plurality of communication terminals 801 include profile information, and the integrated base station 1201 broadcasts the same profile information, so that the frequency can be effectively used. In addition, since the broadcast does not require authentication, it can be expected that the time until the profile information is received after the communication terminal 801 enters the control wireless communication area can be expected.

  Also, as shown in FIG. 38, the radio communication system according to the present invention can adopt a mode in which the control radio packet used in the control radio communication is transmitted including the profile information and the content meta information. is there. FIG. 38 is a diagram illustrating a network configuration example of a wireless communication system according to the fourth embodiment of the present invention in the case where a control wireless packet is transmitted including content meta information. FIG. 39 is a flowchart illustrating an example of the operation of the communication terminal 801 when a control wireless packet including profile information and meta information is received. Referring to FIGS. 38 and 39, communication terminal 801 receives profile information and meta information by a control radio packet (step S1401).

  Next, the communication terminal 801 determines whether or not to establish a connection with the integrated base station 1201 using wireless LAN communication from the received meta information (step S1402). Details of this determination processing will be described later. If it is determined not to connect to the integrated base station 1201 (step S1403: No), the communication terminal 801 ends the connection process to the integrated base station 1201 using wireless LAN communication and returns to normal operation. When it is determined that the connection with the integrated base station 1201 is to be established (step S1403: Yes), the communication terminal 801 turns on the main wireless power supply unit 807 (wireless LAN communication function) (step 1404), and wirelessly transmits from the integrated base station 1201. Preparation for transmitting and receiving information using LAN communication is started (step S1405).

  With this configuration, the communication terminal 801 can grasp the content transmitted by the integrated base station 1201 from the meta information. Thereby, for example, when it is determined that the content transmitted by the integrated base station 1201 does not need to be received by the communication terminal 801, it is more than necessary by turning off the power of the configuration related to the wireless LAN communication function. In addition, since it is less likely to turn on the power of the configuration related to the wireless LAN communication function, it is possible to reduce power consumption during standby. Further, as described in the first embodiment, the transmission duty in the control radio communication of the integrated base station 1201 can be increased by transmitting the meta information, so that the communication terminal 801 can further increase the integrated base station 1201. You can shorten the time to discover. Or conversely, the effect of power saving can be expected by extending the intermittent reception interval.

  Furthermore, the wireless communication system according to the present invention can increase the transmission duty of the control wireless communication by adopting a configuration in which the control wireless communication is broadcast and the same profile information and meta information are periodically broadcast. It becomes possible. This also provides the effect of shortening the connection time or saving power, and at the same time, since the communication terminal 801 can receive the same information multiple times, the effect of reducing the reception error rate is also expected. it can.

  When the communication terminal 801 determines whether or not the content is necessary and operates the power supply having the configuration related to the wireless LAN communication function, the user designates a genre that the user wants to receive in advance, such as “sports”, “news”, and “guidance information”. It is desirable to determine that the power supply having the configuration related to the wireless LAN communication function can be turned on only when content that matches the genre designated by the user is transmitted from the integrated base station 1201, but the present invention is not necessarily limited to this. Absent. For example, the user's preference level is determined based on the access history to the detailed content information of the communication terminal 801, and the power supply having the configuration related to the wireless LAN communication function is turned on only when content matching the preference level is transmitted. It is also possible. This eliminates the need for the user to specify the content that the user wants in advance, and allows the user to receive content related to preferences that the user does not notice.

  For the determination of the user's preference level, not only the history of content detailed information but also the usage history of other communication terminals 801 may be used. For example, when the communication terminal 801 is a mobile phone, the preference level may be determined based on the mail or web access history. Thereby, the determination accuracy of the user's preference level can be further increased.

  In addition, since the communication terminal 801 knows the content held by the integrated base station 1201 from the meta information, if the user has already received the content transmitted from the integrated base station 1201, the configuration related to the wireless LAN communication function It is also possible not to start up. This can be expected to reduce power consumption.

  The method of comparing the content held by the integrated base station 1201 and the content held by the communication terminal 801 adds a content ID to the meta information, and the content ID held by the integrated base station 1201 and the content held by the communication terminal 801 Although a method of comparing IDs is desirable, it is not necessarily limited to this.

  For example, the last update date / time information of the content held by the integrated base station 1201 may be added to the meta information. The communication terminal 801 compares the last update date / time information of the content held by itself with the last update date / time information included in the meta information, so that the content held by the communication terminal 801 and the integrated base station 1201 It is possible to determine whether there is difference information with the content to be held.

  In addition, in order to speed up the above-described determination of the difference information, the integrated base station 1201 generates a hash value for all content groups held by itself, and adds this hash value to meta information transmitted by control wireless communication. However, the same effect can be obtained.

  In the present invention, the sub radio communication unit 1109 of the child base station (see FIG. 27) does not necessarily need to include both the transmission unit 1110 and the reception unit 1111. FIG. 40 is a block diagram illustrating a configuration example of the child base station 902. With reference to FIG. 40, the child base station 902 may include, for example, only the transmission unit 1110 and only transmit the control radio packet. As a result, the configuration of the child base station 902 is simplified, and the child base station can be manufactured at low cost.

  In the wireless communication system according to the present invention, as shown in FIG. 41, the control wireless communication area 1602 and the wireless LAN communication area 1601 may be arranged so that only some areas overlap. In such a case, the communication terminals 1603 and 1604 can determine whether to transmit / receive various types of information (including content) according to the direction in which the communication terminals 1603 and 1604 move. Referring to FIG. 41, for example, when communication terminal 1603 enters control wireless communication area 1602 and then enters wireless LAN communication area 1601 (ie, moves in the direction of arrow A), It can be determined to send and receive information. On the other hand, if the communication terminal 1603 enters the control wireless communication area 1602 after entering the wireless LAN communication area 1601 (that is, when moving in the direction of arrow B), the communication terminal 1603 determines not to transmit / receive various information. be able to.

  In addition, the radio communication system according to the present invention can perform, for example, the following operations when the parent base station and the child base station are alternately installed along the road. It is. The child base station transmits the profile information of a plurality of adjacent parent base stations and the ID of the child base station by control wireless communication. The communication terminal holds the ID of the child base station transmitted from the child base station. Thereby, when the communication terminal is moving, it is possible to grasp which direction it is moving. Further, the communication terminal may have a function of determining a parent base station to be connected next from profile information transmitted from the child base station. This eliminates the need to install a parent base station and a child base station for each direction of movement of the communication terminal (that is, in both directions of arrows A and B in FIG. 41), thereby reducing the cost of infrastructure installation. Become.

  Further, the wireless communication system according to the present invention may be configured to transmit different profile information for each traveling lane by using a child base station as an optical beacon or the like. FIG. 42 is a block diagram illustrating a configuration example of an optical communication unit in the child base station 902. For example, the right turn lane of the intersection is equipped with an optical beacon (child base station) that transmits the profile information of the parent base station ahead of the intersection at the right turn. An optical beacon (child base station) for transmitting station profile information is provided. As a result, a communication terminal that moves with the vehicle does not start a connection with a parent base station whose communication area is on a road on which the vehicle does not travel, and reliably connects with the parent base station where it moves. It becomes possible to do.

  In the invention according to the third embodiment (FIG. 25), the function of the integrated base station 601 (see FIG. 15) described in the second embodiment is divided into a parent base station 901 and a child base station 902. However, the present invention is not necessarily limited to this configuration. That is, the communication area (control wireless communication area, wireless LAN communication area) in the integrated base stations 101 and 601 according to the first and second embodiments is made the same communication area as that of the third embodiment by a method such as antenna control. If set, the same effect as the third embodiment can be obtained.

  In the present invention, since the communication terminal can automatically connect to the base station that transmits the content by the control wireless packet transmitted by the control wireless communication, downloading and uploading of various information is performed by the user. May be performed in the background without being conscious.

  In such a case, as shown in FIG. 10, the communication terminal does not always wait for a user operation for content display, but automatically displays the content when the user recognizes that he / she has seen the screen. The content may always be displayed in a place that is visible to the user. This increases the opportunity for the user to view the content. For example, a method of displaying content on the wallpaper of the communication terminal is effective. Moreover, since the user is browsing the communication terminal immediately after the operation of the communication terminal, such as immediately after mail transmission, it is effective to display the content in such a case.

  Note that the profile information may include content receiving terminal attribute information 704 as shown in FIG. Here, the content receiving terminal attribute information 704 is attribute information of a communication terminal capable of receiving content, such as category information of a communication terminal such as “car navigation” and “mobile phone”, or the same mobile phone. Alternatively, it may be attribute information of a user who has “male / female” and “20s” and a communication terminal. It is desirable that the user attribute information is manually set by the user having the communication terminal, but the user attribute information is not necessarily limited to this, and the attribute is automatically added according to the contents of the mail and the usage history. Also good. With this configuration, it is possible to transmit content only to a communication terminal having a specific attribute, and it is possible to increase the functionality of the provided information service, such as transmitting content to a specific user.

  In the fourth embodiment, the method of adding meta information to the control radio packet (see FIG. 38) has been described. However, the control radio packet to which this meta information is added is not necessarily the same as that of the fourth embodiment (that is, It is not used only in the embodiment in which the integrated base station and the communication terminal transmit and receive content in the broadcast mode. That is, even in an embodiment in which the integrated base station and the communication terminal transmit and receive content by wireless LAN communication, by adding meta information to the control wireless packet, the communication terminal can turn on the power supply configured for the wireless LAN communication function. It is possible to make a decision to turn on / off, and a power consumption reduction effect is also expected. Also, the transmission of meta information makes it possible to increase the transmission duty in control radio communication as in the fourth embodiment. Therefore, when the communication terminal receives control radio communication intermittently, the integrated base station becomes more integrated. You can shorten the time to discover. Or conversely, the effect of power saving can be expected by extending the intermittent reception interval.

(Fifth embodiment)
FIG. 44 is a diagram illustrating a network configuration example of a wireless communication system according to the fifth embodiment of the present invention. Referring to FIG. 44, the radio communication system according to the fifth embodiment of the present invention uses various specific low-power radios such as the UHF band and the control radio communication area is larger than the wireless LAN communication area. An example is shown. More specifically, when the communication terminal 201 detects a specific area 3001 (area near the child base station) near the child base station, the communication terminal 201 uses the detection as a trigger to communicate with the wireless LAN base station of the parent base station 901. The process of transmitting and receiving information (including content) is started. In the fifth embodiment, as in the third embodiment, a description is given using a configuration including a parent base station 901 responsible for the wireless LAN communication function and a child base station 902 responsible for the control wireless communication function. The same effect can be obtained when applied to the first and second embodiments (that is, an embodiment using an integrated base station having both a control wireless communication function and a wireless LAN communication function).

  Processing in which the communication terminal 201 receives content from the wireless LAN base station of the parent base station 901 will be described. As described in the first to fourth embodiments, the wireless LAN base station may transmit / receive information by wireless LAN communication, or may transmit information by broadcasting. That is, when using wireless LAN communication, the communication terminal 201 performs a connection / authentication procedure to the parent base station 901 (that is, the wireless LAN base station) from the profile information, and then transmits and receives information. Similarly, when using broadcasting, the communication terminal 201 performs processing for receiving information from the parent base station 901 by matching its own wireless LAN reception channel with the communication channel of the parent base station 901 included in the profile information. Start.

  Furthermore, it is also effective to combine these communications and broadcasting, for example, to broadcast information with high user usage, receive information that has not been broadcast by communication, and upload by communication if there is information to be uploaded.

  Hereinafter, a case where the communication terminal 201 transmits and receives information by communication and a case where information is received by broadcasting will be described separately, but it is naturally possible to combine them. That is, the communication terminal 201 first changes its reception channel to the transmission channel of the parent base station 901 and receives information. After receiving the information, the communication terminal 201 can connect to the parent base station 901 and further transmit / receive information.

  In FIG. 44, the child base station 902 transmits profile information for transmitting / receiving information to / from the parent base station 901. An area where information can be transmitted and received with the parent base station 901 is called a parent base station communication area 3002, and an area where information can be transmitted and received with the child base station 902 is called a child base station communication area 3003.

  The definition method of the child base station vicinity area 3001 includes, for example, a method in which an area where the received power (RSSI: Received Signal Strength Indicator) of a signal transmitted by the child base station 902 is equal to or greater than a threshold is set as the child base station vicinity area 3001. Can be mentioned. Hereinafter, detection of the child base station vicinity area 3001 will be described using this method as a representative.

  An outline of the operation of the communication terminal 201 will be described. The communication terminal 201 first receives a signal from the child base station 902, activates the control wireless communication function by this signal (WOR), and receives profile information. The communication terminal 201 periodically determines whether it is in the child base station vicinity area 3001. When receiving content by communication, the communication terminal 201 performs connection processing to the parent base station 901 based on the profile information received in advance when it detects that it is in the child base station vicinity area 3001, Information is transmitted to and received from the station 901. When the communication terminal 201 receives information by broadcasting, if it detects that it is in the child base station vicinity area 3001, the channel on which the parent base station 901 is transmitting content based on the received profile information The receiver receives the information from the parent base station 901 by matching its own reception channel.

  FIG. 45 is a block diagram illustrating a configuration example of the communication terminal 201 according to the fifth embodiment of the present invention. Referring to FIG. 45, in communication terminal 201, reception section 212 of sub radio communication section 210 has RSSI measurement section 3005. The communication terminal 201 observes the reception strength of the signal received from the child base station 902 by the RSSI measurement unit 3005, and transmits a signal to the control unit 802 when it exceeds a threshold value. In the communication terminal 201, the control unit 802 starts processing for transmitting / receiving information to / from the parent base station 901 using the reception of this signal as a trigger. Since other configurations are the same as the configuration of the communication terminal 201 according to the second embodiment, description thereof is omitted.

  FIG. 46 is a diagram for explaining a method for detecting a child base station vicinity area 3001 using RSSI. Referring to FIG. 46, the horizontal axis represents distance, and the vertical axis represents received power of communication terminal 201. In general, the received power from the child base station 902 decreases as the distance from the child base station 902 increases. For this reason, the communication terminal 201 sets the reception power threshold value Prcv for comparison of the reception power from the child base station 902 in advance. Accordingly, the communication terminal 201 can detect that the communication terminal 201 is in the child base station vicinity area 3001 if the reception power from the child base station 902 is larger than the reception power threshold value Prcv. Note that the reception power threshold value Prcv is not necessarily fixed. You may make it variable according to the metadata transmitted by control radio | wireless communication, the kind of communication terminal 201, etc. FIG. Thereby, the wireless communication system according to the present embodiment can adaptively change the area for displaying information on the communication terminal 201 in accordance with the information to be transmitted and received and the type of the communication terminal 201.

  FIG. 47 is a flowchart illustrating an example of an operation when the communication terminal 201 transmits / receives information to / from the parent base station 901 by wireless LAN communication. FIG. 47 shows an operation flow from when the communication terminal 201 receives profile information from the child base station 902 to when information is transmitted to and received from the parent base station 901. 47, communication terminal 201 first receives profile information from child base station 902 (step S3001). Next, the communication terminal 201 determines whether or not it is in the child base station vicinity area 3001 (step S3002). When the communication terminal 201 is in the child base station vicinity area 3001 (Yes in step S3003), the communication terminal 201 starts connection to the parent base station 901 (step S3004).

  If the communication terminal 201 is not in the child base station vicinity area 3001 (No in step S3003), the communication terminal 201 determines again whether it is in the child base station vicinity area 3001 after a predetermined time (step S3002). If the communication terminal 201 can communicate with the parent base station 901 after the connection processing to the parent base station 901 (Yes in step S3005), the communication terminal 201 transmits / receives information to / from the parent base station 901 (step S3007). If communication with the parent base station 901 is not possible (No in step S3005), the communication terminal 201 determines whether to reconnect to the parent base station 901 (step S3006). Returning to the connection process with the station 901 (step S3004), the process is terminated if the connection is not re-established.

  The reconnection determination will be described. In the reconnection determination, when the communication terminal 201 cannot connect to the parent base station 901, the communication terminal 201 measures the RSSI again, determines whether or not it is in the child base station vicinity area 3001, and if it is in the area, A method of retrying the connection to the parent base station 901 is desirable. Further, the communication terminal 201 may limit the number of retries for reconnection to the parent base station 901 and connect to the parent base station 901 within a range not exceeding the limit number. This makes it possible to reduce the power for connecting to the parent base station 901.

  FIG. 48 is a flowchart showing an example of operation when the communication terminal 201 receives information from the parent base station 901 by broadcasting. FIG. 48 shows an operation flow from when the communication terminal 201 receives profile information from the child base station 902 to when information is received from the parent base station 901 by broadcasting. Referring to FIG. 48, communication terminal 201 first receives profile information from child base station 902 (step S3001). Next, the communication terminal 201 determines whether or not it is in the child base station vicinity area 3001 (step S3002). When the communication terminal 201 is in the child base station vicinity area 3001 (Yes in step S3003), the communication terminal 201 changes its own reception channel to the transmission channel of the parent base station 901 (step S5002).

  If the communication terminal 201 is not in the child base station vicinity area 3001 (No in step S3003), the communication terminal 201 determines again whether it is in the child base station vicinity area 3001 after a predetermined time (step S3002). After changing the reception channel to the transmission channel of the parent base station 901, the communication terminal 201 receives information from the parent base station 901 when the signal from the parent base station 901 can be received (Yes in step S5003) (step S5003). S5005). When the signal from the parent base station 901 cannot be received (No in step S5003), the communication terminal 201 determines whether or not to continue the reception state in which the signal from the parent base station 901 can be received. Returns to step S5003. If the reception state is not continued, the process ends.

  Here, as a determination of whether or not the communication terminal 201 continues the reception state, when the signal from the parent base station 901 cannot be received for a certain period of time, it is desirable to end the processing, but this is not necessarily limited to this operation. It is not a thing. For example, in step S5003, even when the communication terminal 201 cannot receive a signal from the parent base station 901, the communication terminal 201 may periodically transition to a state in which a signal from the parent base station 901 can be received.

  In this embodiment, since the control radio communication area is large, the communication terminal 201 receives a control radio for a long time, receives a larger amount of information, or reduces the communication rate required for the control radio. It becomes possible to design. For example, this makes it possible to reduce the clock rate of the receiving circuit, thereby reducing the power consumption during the control radio operation. Also, only the communication terminal 201 that enters the child base station vicinity area 3001 can connect to the parent base station 901 and transmit / receive content. Thus, for example, it is possible to transmit the peripheral guidance information only to terminals that pass through an intersection or a ticket gate of a station.

  In general, since radio signals vary due to fading and shadowing, the received power from the child base station 902 varies even if the communication terminal 201 is at the same location. For this reason, the received power may vary in the vicinity of the received power threshold value Prcv. In this case, it is assumed that the reconnection determination to the parent base station 901 becomes unstable. Therefore, it is desirable to have a hysteresis characteristic for determining whether or not the mobile station is in the vicinity of the child base station 3001.

(Sixth embodiment)
FIG. 49 is a diagram illustrating a network configuration example of a wireless communication system according to the sixth embodiment of the present invention. With reference to FIG. 49, the radio | wireless communications system which concerns on 6th Embodiment shows the Example when a control radio | wireless communication area is larger than a wireless LAN communication area similarly to 5th Embodiment. More specifically, after receiving a signal by control wireless communication, the communication terminal 201 immediately starts a process of transmitting / receiving information (including content) to / from the parent base station 901. In the sixth embodiment, similar to the third embodiment, a parent base station 901 responsible for a portion related to the wireless LAN communication function and a child base station 902 responsible for a portion related to the control wireless communication function are provided. Although the description will be made using the configuration, the same applies to the first and second embodiments (that is, an embodiment using an integrated base station having both a control wireless communication function and a wireless LAN communication function). An effect can be obtained. As described in the first to fifth embodiments, the wireless LAN base station of the parent base station 901 may transmit / receive information by wireless LAN communication or may transmit information by broadcasting.

  An outline of processing until the communication terminal 201 transmits and receives information to and from the parent base station 901 by communication will be described. After receiving the profile information, the communication terminal 201 performs an operation of detecting the parent base station 901. When the communication terminal 201 detects the parent base station 901, the communication terminal 201 performs authentication processing with the detected base station 901 and transmits / receives information.

  An outline of processing in which the communication terminal 201 receives information from the parent base station 901 by broadcasting will be described. After receiving the profile information, the communication terminal 201 performs processing for receiving information from the parent base station 901 by matching its own wireless LAN communication reception channel with the communication channel of the parent base station 901 included in the profile information. Start.

  In the present embodiment, a technique for a case where a plurality of parent base stations 901 exist in one control radio communication area is also disclosed.

  49, communication terminal 201 receives profile information and metadata from child base station 902. When the communication terminal 201 exchanges information by communication, it searches for a parent base station 901 to be connected based on the received profile information. When the parent base station communication area 3002 is detected, the communication terminal 201 performs processing such as connection authentication to the parent base station 901 and receives information. When receiving information by broadcasting, the communication terminal 201 adjusts its own reception channel to the channel to which the parent base station 901 is transmitting content based on the received profile information, and receives the content from the parent base station 901. To do.

  FIG. 50 is a flowchart illustrating an example of an operation when the communication terminal 201 transmits and receives information to and from the parent base station 901 through wireless LAN communication. FIG. 50 shows an operation flow from when the communication terminal 201 receives profile information from the child base station 902 to when information is transmitted to and received from the parent base station 901 through wireless LAN communication. Referring to FIG. 50, communication terminal 201 receives profile information from child base station 902 (step S4001). Next, the communication terminal 201 refers to the received profile information and receives a beacon transmitted by the parent base station 901, thereby executing a parent base station detection process for detecting the parent base station 901 to which the communication terminal 201 is connected ( Step S4002). When the parent base station 901 to which it is connected cannot be detected (No in step S4003), the communication terminal 201 determines whether to search for the parent base station 901 again (step S4004), and performs the search again. If the process proceeds to step S4003 and the search is not performed again, the process ends.

  The determination of whether to search for the parent base station 901 again will be described. The communication terminal 201 preferably finishes the process when the parent base station 901 is not found for a predetermined time, or finishes the process if the parent base station 901 is not found a predetermined number of times. When the parent terminal station 901 to which it is connected is detected, the communication terminal 201 performs a connection process to the parent base station 901 (step S4005). When the parent base station 901 cannot be detected, the communication terminal 201 determines whether to reconnect to the parent base station 901 (step S4007). When reconnecting, the communication terminal 201 returns to the parent base station 901 again. A connection process (step S4006) is performed. If reconnection is not performed, the process ends. When the connection with the parent base station 901 is established, the communication terminal 201 transmits / receives information to / from the parent base station 901 (step S4008).

  FIG. 51 is a flowchart showing an example of operation when the communication terminal 201 receives information from the parent base station 901 by broadcasting. 51 shows an operation flow from when the communication terminal 201 receives profile information from the child base station 902 to when information is received from the parent base station 901 by broadcasting. Referring to FIG. 51, communication terminal 201 receives profile information from child base station 902 (step S5001). Next, the communication terminal 201 changes the reception channel to the transmission channel of the parent base station 901 (step S5002). When the signal of the parent base station 901 can be received (Yes in step S5003), the communication terminal 201 receives information from the parent base station 901 (step S5005). When the signal of the parent base station 901 cannot be received (No in step S5003), the communication terminal 201 determines whether or not to continue the signal reception state of the parent base station 901, and if so, proceeds to step S5003. Return. If the reception state is not continued, the process ends.

  FIG. 52 is a diagram illustrating a network configuration example when a plurality of parent base stations 4001 and 4002 exist in the communication area of the child base station 902 (that is, the child base station communication area 3003). Referring to FIG. 52, child base station 902 transmits profile information of parent base station 4001 and parent base station 4002 using control radio communication. The child base station 902 may receive profile information and metadata from any of the parent base stations 4001 and 4002 using wireless LAN communication, or may receive it from the server 10 as shown in FIG. Also good.

  FIG. 53 is a block diagram illustrating a configuration example of the communication terminal 201. Referring to FIG. 53, main wireless control unit 805 that controls the wireless LAN communication function has wireless LAN base station selection unit 4003. When the profile information transmitted from the child base station 902 includes information on a plurality of parent base stations, the connection wireless LAN base station selection unit 4003 performs a process of selecting an optimum parent base station from the information. As a method for selecting a parent base station, there is a method for selecting a parent base station having the largest RSSI such as a beacon signal of a plurality of parent base stations. As a result, it is possible to select a parent base station having the largest received power.

  In addition, the position information of the parent base station is added to the profile information, and the child base station 902 can obtain the same effect even if it transmits / receives information to / from the nearest parent base station based on its own position information. Can do. The communication terminal 201 can also monitor the traffic of the parent base station and select a base station with less traffic. As a result, it is possible to achieve load distribution of the parent base station. On the contrary, if the RSSI of a specific parent base station is equal to or greater than a threshold value, information may be exchanged with the parent base station. Thus, for example, a communication terminal is intensively connected to a specific parent base station, and the parent base station transmits information to the plurality of communication terminals all at once by broadcasting, so that the communication terminals individually Compared with the method of connecting to and exchanging information, it is possible to suppress the traffic of the entire system.

  In addition, for example, by performing antenna control by providing a directional antenna to the child base station, the child base station vicinity area and the parent base station vicinity area disclosed in the fifth and sixth embodiments are intentionally You may make it the structure shape | molded in a specific place.

  As a result, even when there is no space for installing a base station in a place where the child base station vicinity area is desired, a child base station vicinity area can be created at a desired place and access to the user's parent base station can be controlled.

  Further, the child base station vicinity area or the parent base station vicinity area is not necessarily fixed. That is, by changing the antenna directivity, the child base station vicinity area or the parent base station vicinity area can be changed according to the time zone. As a result, a more flexible service can be provided.

  Note that in the fifth and sixth embodiments, information transmission such as profile information and metadata using control wireless communication by the child base station can be performed using communication as in the other embodiments described above. May be used. Since the communication terminal receives the same information, the amount of transmission data can be reduced by adopting the control wireless communication in the form of broadcasting. Further, the communication terminal only receives the broadcast information. Therefore, it is not necessary to perform processing such as authentication with the child base station, and an effect that the waiting time until information reception is shortened can be expected.

  Throughout the present invention, the timing at which the communication terminal displays the content has been described in the first embodiment, but it is not always necessary to display the content immediately after receiving the content. Further, even if the content is not viewable at all locations, the content to be displayed may be limited depending on the location, and a certain content may be viewable only by a user at a specific location.

  That is, for example, in the fifth and sixth embodiments, contents are categorized and divided into a plurality of categories such as “contents that can be displayed anywhere” and “contents that can be displayed only in the vicinity of child base stations”. May be included in metadata transmitted by the child base station or information transmitted by the parent base station. FIG. 54 shows a system diagram in the sixth embodiment as an example.

  Referring to FIG. 54, the communication terminal that has detected that it has entered the child base station vicinity area 3001 refers to the database of contents received by itself. If there is content of the class “content that can be displayed anywhere” in the database, the communication terminal may display the content any time after receiving the content. On the other hand, “content that can be displayed only in the area near the child base station” may be displayed only when the communication terminal is in the area near the child base station.

  As a result, news information can be displayed on the terminal anytime and anywhere, and guidance information can be viewed only at a specific location, or a certain content can always be displayed at a specific location. Become.

  This makes it possible to control displayable content depending on the location of the communication terminal. The specific area is not necessarily limited to the area near the child base station.

  55 and 56 are diagrams illustrating network configuration examples of the wireless communication system according to the fifth and sixth embodiments. As shown in FIGS. 55 and 56, it is also possible to adopt a configuration in which information is provided only to communication terminals existing in the parent base station vicinity area 5001. The detection method of the parent base station vicinity area 5001 can be realized using the same technique as the detection method of the child base station vicinity area 3001.

  Note that these display timings and methods for restricting the content to be displayed in the area where the communication terminal exists can be used in all the embodiments of the present invention.

  In the embodiment of the present invention, as described above, the wireless LAN base station in the parent base station or the integrated base station may transmit / receive information to / from the communication terminal by wireless LAN communication, or send information to the communication terminal by broadcast. You may broadcast. Furthermore, it may be configured to combine these communications and broadcasting. That is, the parent base station has two sections, a broadcast section and a communication section, and transmits information with a high request from the communication terminal and information with high priority in the broadcast section. An overview of all contents is described in metadata transmitted from the wireless LAN base station or the control radio. When a communication terminal exchanges information from a wireless LAN base station, it first receives information in the broadcast section. Thereafter, the missing information may be received by connecting to the wireless LAN base station. By broadcasting only information with high priority, when the number of communication terminals is relatively small, it is possible to expect an effect that the required communication rate is reduced as compared with the case of broadcasting all information.

  Also, even when the wireless LAN base station broadcasts information, instead of broadcasting all contents, first, each communication terminal requests the wireless LAN base station for information desired by the wireless LAN base station. It may be configured to broadcast the requested information after counting the requests. This makes it possible to lower the required communication rate for transmitting information on the wireless LAN base station as compared with the case where the communication terminal individually requests information.

  In the embodiment of the present invention, in the configuration in which the communication terminal transmits / receives information to / from the wireless LAN base station, the server information is mainly received, that is, the downlink function is described. It is not limited to the function for receiving information such as, but is also effective when uploading information held by a communication terminal to a server via a wireless LAN base station.

  FIG. 57 representatively shows a flow when the communication terminal 201 in the first embodiment connects to the integrated base station 101 by wireless LAN communication and uploads information held by the communication terminal 201 to the server 10. Referring to FIG. 57, communication terminal 201 determines whether or not the connection with the wireless LAN base station has been established after flow A shown in FIG. 8 (step S6001). If the connection cannot be established, normal processing is performed (step S6002). If the connection is established, information upload determination of the communication terminal is performed (step S6003). When it is determined that information is to be uploaded (step S6004), the communication terminal 201 uploads information held by the communication terminal to the server 10 via the integrated base station 101 (step S6005), and ends the process after uploading.

  An information upload determination method for the communication terminal 201 will be described. The communication terminal 201 accesses the server 10 and checks whether information held by the communication terminal 201 has already been uploaded to the server 10. If it has not been uploaded to the server 10, it uploads information it has to the server 10.

  Note that the determination of whether the information held by the communication terminal 201 has been uploaded to the server 10 is not necessarily limited to the method described above. The server 10 may store the last upload date and time when the information is uploaded, and the communication terminal 201 may upload the data created after the last upload date and time. As a result, it is not necessary to check all information and determine whether or not it has been uploaded, leading to a reduction in processing time.

  Note that the determination of whether the communication terminal 201 has information that has not been uploaded to the server 10 is not necessarily performed by wireless LAN communication, and control wireless communication can also be used. The communication terminal 201 accesses the server 10 using control wireless communication, and determines whether or not the information held by the communication terminal 201 is uploaded to the server 10. When the communication terminal 201 does not receive information from the wireless LAN base station and there is no information to be uploaded to the server 10, it is possible to reduce standby power by not starting the wireless LAN.

  A function of deleting information uploaded to the server 10 from the communication terminal 201 may be provided. As a result, the memory of the communication terminal 201 is saved.

  Note that the communication terminal 201 may be configured to upload only necessary information to the server 10 without uploading all the information held by the communication terminal 201 to the server 10. For example, it is possible to upload information to be shared with other users to the server 10 and not upload other information. Accordingly, it is possible to prevent an unintended user from accessing the server 10 and browsing the user information held by the communication terminal 201.

  It should be noted that when the information of the communication terminal 201 is tagged as “public” or “private” and uploaded to the server 10, only information with the public tag can be viewed by other users. May be configured to be performed on the server 10 side. Since public / non-public setting can be made for each piece of information of the communication terminal 201, more detailed privacy setting is possible as compared with a case where all contents are made public or non-public.

  The communication terminal 201 can be uploaded at a high speed by connecting to the wireless LAN base station at a high speed, and it is not necessary to always keep the wireless LAN power on, leading to low power consumption. The same effect as when receiving information can be expected.

  In each embodiment of the present invention, the service providing method for the communication terminal user has been described as a visual method using a display unit, but is not necessarily limited thereto. The surrounding area guidance or the like may be provided by voice, and the emergency information or the like may be provided to the user using a vibration or the like.

  Each processing procedure performed by each functional block described in each embodiment according to the present invention includes predetermined program data stored in a storage device (ROM, RAM, hard disk, etc.) that can execute the above-described processing procedure. It may be realized by being interpreted and executed by the CPU. In this case, the program data may be introduced into the storage device via the storage medium, or may be directly executed from the storage medium. Note that the storage medium refers to a semiconductor memory such as a ROM, a RAM, or a flash memory, a magnetic disk memory such as a flexible disk or a hard disk, an optical disk memory such as a CD-ROM, a DVD, or a BD, and a memory card. The storage medium is a concept including a communication medium such as a telephone line or a conveyance path.

  Each functional block described in each embodiment according to the present invention is typically realized as an LSI which is an integrated circuit. These may be individually made into one chip, or may be made into one chip so as to include some or all of them. The name used here is LSI, but it may also be called IC, system LSI, super LSI, or ultra LSI depending on the degree of integration.

  Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. An FPGA (Field Programmable Gate Array) that can be programmed after manufacturing the LSI or a reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used. Alternatively, a configuration in which a processor is controlled by executing a control program stored in a ROM in hardware resources including a processor and a memory may be used.

  Further, if integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology or a derivative other technology, it is naturally also possible to carry out function block integration using this technology. Biotechnology can be applied.

  The wireless communication system of the present invention is useful as a technique for transmitting and receiving a large amount of communication content and displaying the content desired by the user when the communication terminal passes through the communication area of the access point.

Schematic explaining the overall configuration of the wireless communication system according to the first embodiment of the present invention The figure which shows the network structural example of the radio | wireless communications system which concerns on the 1st Embodiment of this invention. The block diagram which shows the structural example of the integrated base station 101 which concerns on the 1st Embodiment of this invention. The block diagram which shows the structural example of the communication terminal 201 which concerns on the 1st Embodiment of this invention. The flowchart which shows an example of operation | movement at the time of the integrated base station 101 storing the profile information of a wireless LAN base station The flowchart which shows an example of operation | movement when the integrated base station 101 performs control radio | wireless communication. The figure which shows the frame structural example of the control radio packet 401 A flowchart showing an example of an operation when the communication terminal 201 receives a control wireless packet. The flowchart which shows an example of operation | movement at the time of the communication terminal 201 starting a connection to the wireless LAN base station of the integrated base station 101. The flowchart which shows an example of operation | movement at the time of the communication terminal 201 displaying a content on the display part 218. The figure which shows an example of the content displayed on the display part 218 of the communication terminal 201 The flowchart which shows an example of operation | movement of the wireless LAN communication setting process in the communication terminal 201 Flow chart showing an example of operation of integrated base station 101 The figure which shows an example of the image display method of the communication terminal 201 The block diagram which shows the structural example of the integrated base station 601 which concerns on the 2nd Embodiment of this invention. The block diagram which shows the structural example of the communication terminal 801 which concerns on the 2nd Embodiment of this invention. The figure which shows the frame structural example of the control radio | wireless packet used in the 2nd Embodiment of this invention. The flowchart which shows an example of operation | movement of the integrated base station 601 which concerns on the 2nd Embodiment of this invention. The figure which shows an example of detailed operation | movement of the wireless LAN communication setting process in the communication terminal 801 The flowchart which shows an example of operation | movement at the time of the communication terminal 801 changing the main radio | wireless communication part 804 to a sleep state. The flowchart which shows an example of operation | movement at the time of the communication terminal 801 changing the main radio | wireless communication part 804 to a sleep state. The flowchart which shows an example of operation | movement at the time of the communication terminal 801 changing the main radio | wireless communication part 804 to a sleep state. The flowchart which shows an example of operation | movement at the time of the communication terminal 801 changing the main radio | wireless communication part 804 to a sleep state. Schematic explaining the whole structure of the radio | wireless communications system which concerns on the 3rd Embodiment of this invention. The figure which shows the network structural example of the radio | wireless communications system which concerns on the 3rd Embodiment of this invention. The block diagram which shows the structural example of the parent base station 901 which concerns on the 3rd Embodiment of this invention. The block diagram which shows the structural example of the child base station 902 which concerns on the 3rd Embodiment of this invention. A flowchart showing an example of an operation when the base station 901 transmits profile information of the wireless LAN base station to the child base station 902. A flowchart showing an example of an operation when the slave base station 902 performs control wireless communication. The figure which shows the network structural example of the radio | wireless communications system which concerns on the 4th Embodiment of this invention. The block diagram which shows the structural example of the integrated base station 1201 which concerns on the 4th Embodiment of this invention. The flowchart which shows an example of operation | movement at the time of the integrated base station 1201 broadcasting a content. The flowchart which shows an example of operation | movement at the time of the integrated base station 1201 transmitting detailed content to the communication terminal 801. The flowchart which shows an example of operation | movement when the communication terminal 801 receives a control wireless packet. The flowchart which shows an example of operation | movement when the communication terminal 801 starts a connection to the wireless LAN base station of the integrated base station 1201. The figure which shows an example of the transmission sequence of the integrated base station 1201 and the communication terminal 801 The figure which shows the structural example of the content 1401 which the integrated base station 1201 broadcasts. The figure which shows the network structural example of the radio | wireless communications system which concerns on the 4th Embodiment of this invention. The flowchart which shows an example of operation | movement of the communication terminal 801 at the time of receiving the control radio | wireless packet containing profile information and meta information. The block diagram which shows the structural example of the child base station 902 The figure which shows the network structural example of the radio | wireless communications system which concerns on the 4th Embodiment of this invention. Block diagram showing a configuration example of an optical communication unit in the slave base station 902 The figure which shows the frame structural example of the control radio packet 701 The figure which shows the network structural example of the radio | wireless communications system which concerns on the 5th Embodiment of this invention. The block diagram which shows the structural example of the communication terminal 201 which concerns on the 5th Embodiment of this invention. The figure explaining the detection method of the child base station vicinity area 3001 using RSSI The flowchart which shows an example of operation | movement at the time of the communication terminal 201 transmitting / receiving information with the parent base station 901 by wireless LAN communication. The flowchart which shows an example of operation | movement when the communication terminal 201 receives information from the parent base station 901 by broadcasting. The figure which shows the network structural example of the radio | wireless communications system which concerns on the 6th Embodiment of this invention. A flowchart illustrating an example of an operation when the communication terminal 201 transmits and receives information to and from the parent base station 901 by wireless LAN communication. The flowchart which shows an example of operation | movement when the communication terminal 201 receives information from the parent base station 901 by broadcasting. The figure which shows the network structural example in case the some parent base station 4001, 4002 exists in the communication area (namely, child base station communication area 3003) of the child base station 902. The block diagram which shows the structural example of the communication terminal 201 The figure which shows the network structural example of the radio | wireless communications system of this invention The figure which shows the network structural example of the radio | wireless communications system of this invention The figure which shows the network structural example of the radio | wireless communications system of this invention The flowchart which shows an example of operation | movement of the communication terminal 201. Block diagram showing the configuration of a conventional wireless communication system Block diagram showing the configuration of a conventional wireless communication system Block diagram showing the configuration of a conventional wireless communication system

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Server 20 Control wireless communication area 30 Wireless LAN communication area 101 Integrated base station 102 External information communication part 103 Memory part 104 Control part 105 Main wireless communication part (wireless LAN communication function)
106 Transmission Unit 107 Reception Unit 108 Main Radio Control Unit 109 Sub Radio Control Unit 110 Sub Radio Communication Unit (Control Radio Communication Function)
DESCRIPTION OF SYMBOLS 111 Transmission part 112 Reception part 113 Antenna part 114 Antenna part 115 Profile information storage part 201 Communication terminal 202 Control part 203 Sub radio | wireless control part 204 Main radio | wireless control part 205 Profile information setting part 206 Main radio | wireless communication part (wireless LAN communication function)
207 Transmission unit 208 Reception unit 209 Antenna unit 210 Sub wireless communication unit (control wireless communication function)
211 Transmission Unit 212 Reception Unit 213 Antenna Unit 214 Profile Information Storage Unit 215 Reception Memory Unit 216 Display Control Unit 217 Input Unit 218 Display Unit 219 Transmission Memory Unit 220 Memory Unit 602 Main Radio Activation Information Storage Unit 801 Communication Terminal 802 Control Unit 806 Main Wireless power supply control unit 807 Main wireless power supply unit 901 Parent base station 902 Child base station 1001 Control unit 1002 Main wireless control unit 1003 External information communication unit 1004 Memory unit 1005 Main wireless communication unit (wireless LAN communication function)
1006 Transmission unit 1007 Reception unit 1008 Antenna unit 1109 Main radio activation information storage unit 1010 Profile information storage unit 1101 Memory unit 1102 Control unit 1103 Sub radio control unit 1104 Main radio control unit 1105 Main radio communication unit (wireless LAN communication function)
1106 Transmission unit 1107 Reception unit 1108 Antenna unit 1109 Sub wireless communication unit (control wireless communication function)
1110 Transmission unit 1111 Reception unit 1112 Antenna unit 1301 Broadcast content storage unit

Claims (50)

A wireless base station that communicates with a wireless communication terminal,
Main wireless communication means for performing communication in accordance with the main wireless communication method;
Sub wireless communication means for performing communication according to the sub wireless communication method;
Setting information acquisition means for acquiring setting information for performing communication according to the wireless communication terminal and the main wireless communication method;
The radio base station, wherein the sub radio communication means transmits the setting information to the radio communication terminal by communication according to the sub radio communication method.   The radio base station according to claim 1, wherein the setting information includes communication channel information of the main radio communication unit or an identification ID of the radio base station.   The radio base station according to claim 2, wherein the setting information further includes encryption information for encrypting the main radio communication scheme.   The radio base station according to claim 2, wherein the setting information further includes start information for starting a configuration for performing communication in accordance with the main radio communication method, which is provided in the radio communication terminal. .   The radio base station according to claim 2, wherein the setting information further includes information on a beacon transmission cycle of the main radio communication unit.   The radio base station according to claim 2, wherein the setting information further includes server specifying information for specifying a server to be accessed by the radio communication terminal using the main radio communication scheme.   The radio base station according to claim 2, wherein the setting information is stored in an area that can be referred to by the radio communication terminal without performing a connection processing procedure with the radio base station.   The radio base station according to claim 2, wherein the sub-radio communication system includes a broadcast communication system in which a plurality of receivers can simultaneously receive information.   The radio base station according to claim 2, wherein the main radio communication system includes a broadcast communication system in which a plurality of receivers can simultaneously receive information.   The radio base station according to claim 9, wherein the main radio communication scheme further has a periodic broadcast structure for periodically transmitting information of the same content.   The radio base station according to claim 10, wherein the periodic broadcast structure is a carousel type communication structure.   The radio base station according to claim 9, wherein the radio base station receives and stores information to be broadcast from a server in advance.   The information transmitted by the main wireless communication unit using the main wireless communication method includes content that is a main body of the information and feature information that indicates a feature or classification of the content. Radio base station.   A sub-radio communication area that is a communicable area using the sub-radio communication system is disposed at a position related to a main radio communication area that is a communicable area using the main radio communication system. The radio base station according to claim 1.   The radio base station according to claim 14, wherein the main radio communication area and the sub radio communication area are arranged to overlap each other.   The radio base station according to claim 15, wherein the sub radio communication area is arranged in the main radio communication area.   The radio base station according to claim 15, wherein the sub radio communication area is arranged so as to overlap only a part of the main radio communication area. A wireless communication terminal that communicates with a wireless base station,
Main wireless communication means for performing communication in accordance with the main wireless communication method;
Sub wireless communication means for performing communication according to the sub wireless communication method;
Communication setting means for setting setting information for performing communication in accordance with the wireless base station and the main wireless communication system,
The radio communication terminal, wherein the sub radio communication means receives the setting information from the radio base station by communication according to the sub radio communication method.   The communication setting unit is configured to set a communication channel of the main radio communication unit or to receive information from an identification ID of the radio base station included in the setting information. 18. A wireless communication terminal according to 18.   The wireless communication apparatus according to claim 19, wherein the communication setting unit further performs a setting related to encryption of the main wireless communication unit based on encryption information of the radio base station included in the setting information. Communication terminal.   The wireless communication terminal according to claim 19, wherein the communication setting means further includes a power control means for turning on the power of the main wireless communication means.   The wireless communication terminal according to claim 18, wherein the wireless communication terminal uses the main wireless communication means to access a server included in the setting information.   The radio communication terminal according to claim 19, wherein the main radio communication means has a function of receiving information broadcast from the radio base station.   24. The wireless communication terminal according to claim 23, wherein identification information of information viewed by a user in the broadcast information is transmitted to the wireless base station.   When the wireless communication terminal accesses information not broadcast from the wireless base station, the main wireless communication means is configured to communicate with the wireless base station based on information included in the setting information. The wireless communication terminal according to claim 23, wherein the wireless communication terminal is set again.   19. The wireless communication terminal according to claim 18, further comprising information display means and display control means for controlling timing for displaying information on the information display means.   19. The wireless communication terminal according to claim 18, further comprising filtering means for selecting information to be displayed among information received using the main wireless communication means.   28. The radio according to claim 27, wherein the filtering means has a general filter and a personal filter, the general filter is received from the radio base station, and the personal filter is generated by the radio communication terminal. Communication terminal.   The wireless communication terminal according to claim 28, wherein the personal filter is generated based on history information accumulated in the wireless communication terminal. A wireless communication system comprising a server for storing information, a wireless base station for transmitting information, and a wireless communication terminal for receiving information from the wireless base station,
The server is connected to the radio base station;
The radio base station is
A first main wireless communication means for performing communication in accordance with the main wireless communication method;
First sub wireless communication means for performing communication according to the sub wireless communication method;
Setting information acquisition means for acquiring setting information for performing communication according to the wireless communication terminal and the main wireless communication method;
The first sub wireless communication means transmits the setting information to the wireless communication terminal by communication according to the sub wireless communication method,
The wireless communication terminal is
A second main wireless communication means for performing communication in accordance with the main wireless communication method;
A second sub wireless communication means for performing communication according to the sub wireless communication method;
Communication setting means for setting setting information for performing communication in accordance with the wireless base station and the main wireless communication system,
The wireless communication terminal, wherein the first sub wireless communication means receives the setting information from the wireless base station by communication according to the sub wireless communication method.   The communication system according to claim 30, wherein the setting information transmitted by the radio base station includes communication channel information of the first main radio communication unit or an identification ID of the radio base station. . The setting information transmitted by the radio base station further includes encryption information for encrypting the first main radio communication means,
The communication setting means provided in the wireless communication terminal is between the first main wireless communication means and the second main wireless communication means based on the encryption information of the wireless base station included in the setting information. 32. The wireless communication system according to claim 31, wherein settings relating to encryption are performed. The setting information transmitted by the radio base station further includes activation information for activating the second main radio communication unit,
32. The wireless communication system according to claim 31, wherein the wireless communication terminal includes power control means for controlling a power supply of the second main wireless communication means according to the activation information.   The wireless communication system according to claim 31, wherein the setting information transmitted by the wireless base station further includes information on a beacon transmission cycle of the first main wireless communication unit. The setting information transmitted by the wireless base station further includes server specifying information for specifying a server that the wireless communication terminal accesses using the main wireless communication method,
The wireless communication terminal, when receiving the setting information via the second sub wireless communication unit, accesses the server using the second main wireless communication unit. The wireless communication system described.   The wireless communication system according to claim 31, wherein the setting information is stored in an area that can be referred to by the wireless communication terminal without performing a connection processing procedure with the wireless base station.   32. The wireless communication system according to claim 31, wherein the sub wireless communication system includes a broadcast communication system in which a plurality of receivers can simultaneously receive information.   32. The wireless communication system according to claim 31, wherein the main wireless communication means includes a broadcast-type communication method in which a plurality of receivers can simultaneously receive information.   The wireless communication system according to claim 38, wherein the first main wireless communication means further has a periodic broadcast structure for periodically transmitting information of the same content.   40. The wireless communication system according to claim 39, wherein the periodic broadcast structure is a carousel type communication structure.   39. The wireless communication system according to claim 38, wherein the wireless base station receives and stores information to be broadcast from a server in advance.   The information transmitted by the first main wireless communication unit using the main wireless communication method includes content that is a main body of information, and feature information that indicates a feature or classification of the content. The wireless communication system according to 1.   A sub-radio communication area that is a communicable area using the sub-radio communication system is disposed at a position related to a main radio communication area that is a communicable area using the main radio communication system. The wireless communication system according to claim 30.   44. The radio communication system according to claim 43, wherein the main radio communication area and the sub radio communication area are arranged to overlap each other.   45. The radio communication system according to claim 44, wherein the sub radio communication area is arranged in the main radio communication area.   45. The radio communication system according to claim 44, wherein the sub radio communication area is arranged so as to overlap only a part of the main radio communication area.   31. The wireless communication system according to claim 30, wherein the wireless communication terminal further comprises information display means and display control means for performing control to display information on the information display means.   31. The wireless communication system according to claim 30, wherein the wireless communication terminal includes filtering means for selecting information to be displayed among information received using the second main wireless communication means.   The said filtering means has a general filter and a personal filter, The said general filter is produced with a server, it receives from the said radio | wireless base station, The said personal filter is produced | generated with a radio | wireless communication terminal, It is characterized by the above-mentioned. The wireless communication system according to 1.   50. The wireless communication system according to claim 49, wherein the personal filter is generated based on history information stored in the wireless communication terminal.

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