WO2007132675A1 - 送信装置、通信装置、受信装置、通信システム、放送受信システム、制御プログラム、通信方法、放送受信方法 - Google Patents
送信装置、通信装置、受信装置、通信システム、放送受信システム、制御プログラム、通信方法、放送受信方法 Download PDFInfo
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- WO2007132675A1 WO2007132675A1 PCT/JP2007/059332 JP2007059332W WO2007132675A1 WO 2007132675 A1 WO2007132675 A1 WO 2007132675A1 JP 2007059332 W JP2007059332 W JP 2007059332W WO 2007132675 A1 WO2007132675 A1 WO 2007132675A1
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- radio wave
- wave information
- communication
- radio
- broadcast
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- 238000004891 communication Methods 0.000 title claims abstract description 217
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 title claims abstract description 42
- 238000000605 extraction Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 10
- 239000000284 extract Substances 0.000 claims description 7
- 230000000875 corresponding effect Effects 0.000 description 21
- 238000010295 mobile communication Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 230000015654 memory Effects 0.000 description 3
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- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
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- 230000000007 visual effect Effects 0.000 description 1
- 230000003936 working memory Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/93—Arrangements characterised by the broadcast information itself which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
- H04H60/43—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/16—Arrangements for broadcast or for distribution of identical information repeatedly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
- H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
- H04H60/70—Systems specially adapted for using specific information, e.g. geographical or meteorological information using geographical information, e.g. maps, charts or atlases
Definitions
- Transmitting apparatus communication apparatus, receiving apparatus, communication system, broadcast receiving system, control program, communication method, broadcast receiving method
- the present invention is a transmission device that transmits information using radio waves of a specific frequency, a communication device and a reception device that use the information, and a communication system that uses these transmission device, communication device, and reception device! /
- the present invention relates to a broadcast reception system, a communication device, a control program used in the reception device, a communication method, and a broadcast reception method.
- the present invention relates to a receiving system, a communication device or a control program used in the receiving device, and a communication method and a broadcast receiving method used in these various devices.
- Wireless communication terminals such as mobile phones, PHS (Personal Handy-phone System), PDA (Personal Digital Assistant), portable or other personal computers such as desktop computers, navigation devices, etc.
- PHS Personal Handy-phone System
- PDA Personal Digital Assistant
- portable or other personal computers such as desktop computers, navigation devices, etc.
- receivers around the world that receive broadcasts such as television receivers and radio receivers.
- devices that receive broadcasts just by communicating such as mobile terminals that receive television broadcasts and radio broadcasts.
- Figure 1 shows the frequency band used in mobile communication services and frequency search in WCDMA. It represents the principle of Of these, Figure (a) shows the frequency band used in the global standard for mobile communication services.
- IMT International Mobile Telecommunication
- the frequency bands 1920 MHz to 1980 MHz and 21 10 MHz to 2170 MHz shown by shading in Fig. 1 (a) are internationally defined as frequencies used in mobile terminals.
- a frequency between 1980 MHz and 2110 MHz is allocated to other uses such as space operations.
- Japan in addition to the two frequency bands for mobile communication services shown in Fig. 1 (a), there are several other frequency bands that are shown in this figure. Assigned independently.
- the system frequency allocated for base station communication is shown in Fig. 5 (b).
- the center frequency of the channel used by mobile terminals for communication is set every 200 KHz in relation to these base stations. Therefore, when searching for a frequency to be used when a mobile terminal makes a call or communication (hereinafter simply referred to as communication) via a base station, the lower limit center frequency in the usable frequency band is set to f.
- a mobile terminal When a mobile terminal tries to start communication by turning on its power, it stores the center frequency used for the base station with which it last communicated, and uses this center frequency to communicate with the base station. Try to communicate. If the location where the user's mobile terminal is turned off and the location where the power is turned on are greatly different, communication with the base station cannot be started at the center frequency, and so-called “out of range” may be displayed. . Therefore, in such a case, the frequency scan as described above is performed on the frequency that can be used by the portable terminal.
- the identification of a code called a long code unique to the base station can be narrowed down by repeating the M long code mask symbols L times. Based on the narrowed down information, a correlation value is detected using a long code correlator (not shown). The correlation value detection result power is also determined to the maximum value, and the most correlated code is determined to be a long code. This makes it possible to narrow down the long code candidates at an early stage and shorten the initial synchronization time.
- Patent Document 1 Japanese Patent Laid-Open No. 11 8607 (paragraph 0052, FIG. 7)
- the mobile terminal using WCDMA has been described above, similarly, it is necessary for each country to adjust the frequency allocation for the frequencies of satellite communication, shortwave broadcasting, and medium-wave broadcasting that are likely to cause interference problems. Therefore, as shown in FIG. 1, the ITU-R (ITU Radiocommunication Sector), a division of the ITU (International Telecommunications Union), is making international adjustments to frequency allocation. Then, at a conference called WRC (World Radiocommunication Conference), frequency is allocated to various devices using radio waves such as communication terminals, amateur radios, and TV broadcasts.
- ITU-R ITU Radiocommunication Sector
- WRC World Radiocommunication Conference
- an object of the present invention is to provide a transmission device that can easily notify information related to radio waves required by a target device, a communication device that can easily set a frequency required at each location, or a reception device.
- a communication system using the apparatus, the transmission apparatus, the communication apparatus, and the reception apparatus!
- a control program used in the communication apparatus or the reception apparatus, a communication method, and a broadcast reception method is provided.
- the radio wave information transmitting means for constantly transmitting radio wave information related to various radio waves used for communication or broadcasting in the area to which the radio wave belongs is transmitted by radio waves of a predetermined specific frequency.
- a transmission means is provided. Therefore, in the present invention, the required frequency can be easily set by receiving radio waves of the specific frequency.
- the specific frequency does not have to be one frequency.
- the radio wave information that also has a list power of specifications in the area of various radio waves that may have different specifications for each area is steadily obtained by radio waves of a predetermined specific frequency.
- the transmitter is provided with radio wave information transmitting means for transmitting.
- the radio wave information that also has a list power of specifications in the area of various radio waves that may have different specifications for each area of the transmission device is stationary by radio waves of a predetermined specific frequency.
- a radio wave receiving means for receiving a radio wave of a predetermined specific frequency, and (mouth) a radio wave power received by the radio wave receiving means is applied to the device itself.
- Radio wave information extraction means for extracting radio wave information including frequency, and (c) radio wave information extraction.
- the communication apparatus is provided with communication environment setting means for setting a communication environment with the base station using the radio wave information extracted by the means.
- the communication device when the communication device sets a communication environment with the base station, the communication device receives a radio wave having a predetermined specific frequency and includes a center frequency applied to the own device. The information is extracted. If the communication device moves from place to place, the communication environment with the base station may not be divided, but knowing the center frequency applied to itself by receiving the predetermined frequency signal be able to.
- communication start means for setting the communication environment used for the previous communication to start communication, and (mouth) when communication by this communication start means is not successful, Alternatively, when a predetermined other communication environment is prepared and communication is not successful even in that communication environment!
- Radio wave information extracting means for extracting radio wave information including the center frequency applied to the device from radio waves received by the radio wave receiving means; and (2) radio wave information extracted by the radio wave information extracting means.
- a communication environment setting means for setting a communication environment with the base station.
- the invention according to claim 12 deals with a communication device that may move.
- Such a communication device is set when the communication environment used in the previous communication is set and communication is started, and when communication is not successful in the communication environment or when another predetermined communication environment is prepared. If communication is not successful even in that communication environment, there is a possibility that the communication environment will change due to moving to a new location. Yes. Then, the radio wave information including the center frequency applied to its own device is extracted from the received radio wave, and the communication environment with the base station is set using the radio wave information. Therefore, the communication environment can be set in the same way when the communication environment used for the previous communication does not remain for some reason or when the product is turned on for the first time.
- a radio wave receiving means for receiving a radio wave of a predetermined specific frequency, and (mouth) a radio wave power received by the radio wave receiving means, a central frequency for each broadcast
- a radio wave information extracting means for extracting radio wave information including Broadcast receiving means for receiving a desired broadcast using the radio wave information extracted by the stage is provided in the receiving apparatus.
- the receiving device when the receiving device receives a broadcast at a new location, it may not be able to select a broadcast station, but it receives radio waves of a predetermined specific frequency. By extracting radio wave information including the center frequency for each broadcast, reception becomes possible.
- broadcast reception starting means for setting the reception environment used for the previous broadcast reception to start broadcast reception, and (mouth) broadcast reception by the broadcast reception starting means. If the communication is unsuccessful, or other predetermined communication environment is prepared, and communication is not successful depending on the communication environment, the radio wave receiving means for receiving the radio wave of the predetermined specific frequency (C) Radio wave information extracting means for extracting radio wave information including the center frequency of each broadcast from the radio wave received by the radio wave receiving means; and (2) Radio wave information extracted by the radio wave information extracting means.
- the reception apparatus is provided with reception environment setting means for setting a desired broadcast reception environment using the.
- the invention according to claim 16 deals with a receiving apparatus that may move.
- Such a receiving device is set to the reception environment used for the previous broadcast reception and starts receiving the broadcast.
- the broadcast reception is not successful, or when other predetermined communication environment is prepared.
- the broadcast reception environment may change due to moving to a new location. I have to.
- by extracting radio wave information including the center frequency for each broadcast it is possible to set and receive a desired broadcast reception environment.
- a radio wave receiving means for receiving a radio wave of a predetermined specific frequency, and (mouth) each of the devices that can be received from the radio wave received by the radio wave receiving means.
- the reception apparatus includes radio wave information extraction means for extracting radio wave information about the broadcast, and (c) reception environment setting means for setting a desired broadcast reception environment using the radio wave information extracted by the radio wave information extraction means.
- the receiving device receives the broadcast at a new place.
- By extracting the radio wave information about the broadcast it is possible to efficiently extract the radio wave information including the center frequency for each broadcast, set the reception environment of the desired broadcast, and perform reception.
- reception start means for setting the reception environment received last time and starting reception of the broadcast, and (mouth) when reception by this reception start means is not successful
- radio reception means for receiving a radio wave of a predetermined specific frequency
- this radio wave reception Radio wave information extracting means for extracting radio wave information for each broadcast that can be received from the radio wave received by the means, and (2) using the radio wave information extracted by the radio wave information extracting means
- a receiving device is provided with channel selecting means for selecting a broadcast channel.
- the invention of claim 18 deals with a receiving apparatus that may move.
- Such a receiving device is set to the reception environment used for the previous broadcast reception and starts receiving the broadcast.
- the broadcast reception is not successful, or when other predetermined communication environment is prepared. If the communication environment does not succeed even if the communication environment is unsuccessful, there may be a change in the broadcast reception environment due to moving to a new location. I am doing so.
- the radio wave information for each broadcast that can be received by the device is extracted from the received radio wave, and the broadcast reception environment is set using the radio wave information. Therefore, even if the reception environment used for the previous transmission / reception does not remain for some reason, or when the product is first turned on, the broadcast reception environment can be set in the same way.
- radio wave information relating to various radio waves that are arranged for each geographically divided area and are used for communication in the corresponding area is obtained with a predetermined specific frequency.
- C a base station arranged in the corresponding area, and (c) a radio wave receiver that receives the above-mentioned specific frequency radio wave. And the radio wave received by the radio wave receiving means.
- Radio wave information extracting means for extracting radio wave information including the center frequency used, and communication environment setting means for setting the communication environment with the base station using the radio wave information extracted by the radio wave information extracting means.
- the communication system is provided with the communication device.
- the transmission device arranged for each geographically divided area has radio wave information on various radio waves used for communication in the corresponding area at a predetermined specific frequency. It is supposed to transmit constantly by radio waves. Therefore, information on base stations arranged in the area is transmitted to the area as radio wave information.
- the communication device extracts the radio wave information including the center frequency applied between itself and the base station by receiving the radio wave of the specific frequency transmitted from the transmitter in the area where it is currently located. Therefore, the communication environment with the base station can be set efficiently.
- radio wave information related to various radio waves that are arranged for each geographically divided area and used for broadcasting in the corresponding area is obtained with a predetermined specific frequency.
- a transmitter equipped with radio wave information transmitting means for transmitting constantly by radio wave (b) a broadcasting station arranged in the corresponding area, and (c) a radio wave receiver that receives the above-mentioned specific frequency radio wave.
- radio wave information extracting means for extracting radio wave information including the center frequency applied to the device from radio waves received by the radio wave receiving means, and broadcasting using the radio wave information extracted by the radio wave information extracting means.
- a broadcast receiving system is provided with a receiving device having a receiving environment setting means for setting a receiving environment for receiving a broadcast of a station.
- the transmission device arranged for each geographically divided area transmits radio wave information on various radio waves used for broadcasting in the corresponding area at a predetermined specific frequency. It is supposed to transmit constantly by radio waves. Therefore, information on broadcasting stations arranged in the area is transmitted to the area as radio wave information.
- the receiving device extracts the radio wave information including the center frequency applied between itself and the broadcasting station by receiving the radio wave of a specific frequency transmitted from the transmitting device of the area where it is currently located. Therefore, the reception environment for the broadcasting station can be set efficiently.
- the invention according to claim 22 deals with a computer control program on the communication device side.
- This control program receives a radio wave of a predetermined frequency that is transmitted from the area force to which it belongs in a plurality of geographically divided areas in the radio wave reception process, and automatically receives the radio wave from the received radio wave in the radio wave information extraction process.
- the radio wave information of the corresponding area including the center frequency applied to the device is extracted.
- the local radio wave information can be used to easily set the communication environment with the base station in the area.
- the area power to which a plurality of geographically divided areas belong is transmitted to the computer of the broadcast receiving apparatus.
- Radio wave reception processing for receiving radio waves of a specific frequency (c) radio wave power received by the radio wave reception processing, radio wave information extraction processing for extracting radio wave information including the center frequency for each broadcast, and (2)
- a reception environment setting process for setting a reception environment for receiving a desired broadcast is performed using the radio wave information extracted by the radio wave information extraction process.
- the invention according to claim 23 deals with a computer control program on the broadcast receiving apparatus side.
- This control program receives radio waves of a specific frequency that has been sent out in the area power that belongs to multiple geographically divided areas in the radio wave reception process, and from the received radio waves in the radio wave information extraction process.
- the radio wave information of the corresponding area including the center frequency applied to its own device is extracted.
- the local radio wave information can be used to easily set a reception environment for receiving a desired broadcast within the area.
- an area force to which a plurality of geographically divided areas belong is transmitted.
- a radio wave reception step (a) a radio wave information extraction step for extracting radio wave information including the center frequency applied to the device from the radio wave received in the radio wave reception step, and (c) extraction by the radio wave information extraction step.
- a communication environment setting step for setting a communication environment with the base station using the received radio wave information.
- the present invention deals with the communication method of the communication device.
- a radio wave of a predetermined specific frequency that is transmitted from the area power to which the area belongs is received and received in the radio wave information extraction step.
- Radio wave power The radio wave information of the corresponding area including the center frequency applied to the device itself is extracted.
- the local radio wave information is used to easily set the communication environment with the base station in the area in the communication environment setting step.
- a radio wave reception for receiving a radio wave of a predetermined specific frequency that is transmitted, the area power to which a plurality of geographically divided areas belong.
- radio wave information extraction step for extracting radio wave information including the center frequency of each broadcast from the radio wave received in this radio wave reception step; and (c) radio wave information extracted by this radio wave information extraction step.
- reception environment setting step for setting a reception environment for receiving a desired broadcast.
- the present invention deals with the broadcast receiving method of the broadcast receiving apparatus!
- the radio wave reception step the area power to which the area belongs is divided among a plurality of geographically divided areas.
- a radio wave of a predetermined frequency that is transmitted is received, and the radio wave information extraction step receives the received radio wave.
- the radio wave information of the corresponding area including the center frequency applied to the own device is extracted from. Then, the reception environment for receiving a desired broadcast in the area can be easily set in the reception environment setting step using the local radio wave information.
- radio wave information related to various radio waves used for communication or broadcasting by the transmission device in each geographically divided area is steadily expressed by radio waves of a predetermined specific frequency. Therefore, if the radio wave is received, the base frequency used by the base station and broadcast station in the area can be easily known. You In other words, it is possible to search a frequency within a limited range from the center frequency used in a plurality of areas, and a simple search becomes possible. This also makes it possible to manufacture a communication device or a receiving device search device at low cost and with high reliability. Furthermore, the frequency within the area or the environment for communication or reception can be easily obtained and set, so the communication environment or reception environment can be set without having to store these communication environments in the storage means. Can be set.
- FIG. 2 shows a main part of the communication / broadcasting system in one embodiment of the present invention.
- This communication / broadcasting system 100 has a radio tower 101 for each geographically divided area. In the area shown in this figure, a relatively high radio tower 101 is used to cover several Kojimachi villages or prefectures.
- the radio tower 101 is connected with a radio wave information transmitting apparatus 102 for notifying various radio waves and a broadcast transmitting apparatus 103 for transmitting broadcast radio waves.
- the radio wave information 104 output from the radio tower 101 and the broadcast signal 105 for television and radio are a portable terminal 106 as a communication device of this embodiment, and a notebook personal computer having a communication function and a broadcast reception function. It is now possible to receive the note PC 107 that is!
- GPS Global Positioning System
- time signals 109 are transmitted from these plurality of GPS satellites 108. It is output.
- time signals 109 can also be received by the portable terminal 106 and the notebook computer 107.
- the mobile terminal 106 and the notebook computer 107 can analyze the time signal 109 sent from a plurality of GPS satellites 108 so that the current position of the current signal can be determined and the current position can be determined. Become.
- the mobile terminal 106 and the notebook personal computer 107 can communicate with the nearest base station 110 by the radio wave 111.
- Base station 110 is connected to mobile communication network 112.
- the mobile communication network 112 is connected to another communication network 113 such as a telephone network or the Internet.
- FIG. 3 shows an outline of the configuration of the mobile terminal according to the present embodiment.
- Mobile device 106 The main control unit 124 includes a CPU (Central Processing Unit) 121, a ROM (Read Only Memory) 122 storing a control program, and a RAM (Random Access Memory) 123 as a working memory. A part of the RAM 123 constitutes a nonvolatile memory.
- the main control unit 124 is connected to hardware or various circuit components having software power realized by the CPU 121 executing the control program described above, and performs overall control thereof.
- the radio wave information receiving unit 126 receives the radio wave information 104 obtained from the radio wave tower 101 shown in FIG. 2, and stores it in the RAM 123.
- the GPS receiver 127 calculates the current position of the mobile terminal 106 using the time signal 109 sent from the GPS satellite 108 shown in FIG.
- the mobile communication unit 128 communicates with the base station 110 shown in FIG. 2 to transmit and receive telephone calls and communication data.
- the operation unit 129 is configured by various key switchers (not shown). For example, the operation unit 129 performs a dial operation or inputs characters.
- the display control unit 131 performs control for displaying characters and images on the display 132.
- the voice input / output control unit 133 is connected to the microphone 134 and the speaker 135, and is used to output a call, a ringtone, music, or television sound.
- the television receiver 136 is a circuit portion that receives television.
- the notebook personal computer 107 of this embodiment has a communication card (not shown) attached to the main body of the apparatus, and has the functions of the radio wave information receiving unit 126, the GPS receiving unit 127, and the television receiving unit 136 shown in FIG. I have it. Therefore, the circuit configuration of the notebook personal computer 107 is not shown. It should be noted that such a communication card function can be freely provided on a mother board (not shown) of the notebook computer 107.
- FIG. 4 shows an example of frequency allocation of radio wave information output from the radio tower.
- the radio information 104 corresponding to the area covered by the radio tower 101 shown in FIG. 2
- WCDMA wireless LAN
- f frequencies f to f as shown in this figure.
- the center frequency is Number is frequency f-f, f-f, f-f
- the radio tower 101 is a high tower such as Tokyo Tower (Japan Radio Tower) and the transmission power is large, the area where the radio wave reaches becomes wide, so the radio wave information 104 is wide. It consists of information covering the area. For this reason, when communicating with the base station 110, the mobile terminal 106 and the notebook personal computer 107 determine the current location using the GPS receiver 127 shown in FIG. 3, and thus the frequencies f to f, f to f, f ⁇ f and f ⁇ f frequency regions
- the center frequency of the corresponding area can be further limited.
- the radio wave information 104 describes the frequency assigned to each type of radio shown in FIG. 4 in relation to the position information.
- the frame timing, pilot information and operator information that serve as landmarks at the time of reception are also described in relation to the respective position information.
- the pilot information is a pilot code in the CDMA scheme, and is a pilot frequency in the case of the OFDM (Orthogonal Frequency Division Multiplexing) scheme. Therefore, for example, the mobile terminal 106 extracts the corresponding frequency of the WCDMA system and the CDMA system based on the position information obtained by the GPS receiver 127, and finally combines with its own communication system. In addition, it is possible to determine the center frequency for communication with the base station 110 at that location.
- radio information 104 may be output from a small radio tower or a small transmission facility that covers a local area such as a valley of a building.
- the area for receiving the radio wave information 104 is limited to be small. Therefore, in this case, the radio wave information 104 is local information corresponding to the small area.
- the candidate center frequencies can be sufficiently limited simply by sorting the radio wave information 104 in consideration of the own communication method, and a quick search may be possible.
- the search speed can be increased and the load on the mobile terminal 106 can be reduced.
- the radio wave information 104 will be televised from the radio wave information 104 according to the location. It may be necessary to select the channel (broadcasting station) of the vision and eliminate the channel (broadcasting station) that is not visible.
- FIG. 5 illustrates service areas for communication with the mobile terminal described above and for television broadcasting.
- the outermost large circle shows the radio wave information service area 151 as the reach of the radio wave information 104 output from the radio tower 101 shown in FIG.
- the radio wave information service area 1 51 is almost the same as the broadcast service area for the broadcast signal 105. Will do.
- the radio wave information service area 151 is usually much larger than the base station service area 152 of each base station including the base station 110 illustrated in FIG. Therefore, a large number of base station service areas 152, 152,... Usually exist in the radio wave information service area 151.
- base station service area 1 For example, base station service area 1
- the radio wave information receiver 126 (Fig. 3)
- the area can be narrowed down by the position information determined by the reception of the GPS receiver 127 (Fig. 3), and the center frequency candidates for communication with the base station 110 can be extracted.
- the center frequency for communication with the base station 110 can be extracted from the obtained radio wave information 104 by using the position information determined by the reception of the GPS receiver 127 (Fig. 3). wear.
- FIG. 6 shows an outline of control of the mobile terminal from when the power is turned on until power communication is performed. This will be described with reference to FIG. 2 and FIG.
- the CPU 121 in the main control unit 124 reads the previously communicated center frequency stored in the nonvolatile memory area of the RAM 123. (Step S202). Based on this, communication with the base station 110 is attempted (step S203). If communication with the base station 110 is successful (step S204: Y), the normal communication mode (normal communication mode), which has been performed conventionally, is executed (step S205). A detailed description of the normal communication mode is omitted.
- step S206 an attempt is made to receive the radio wave information 104 from the radio tower 101 on the land (step S206).
- the frequency of the radio wave used as the radio information 104 is determined so as to be selected from several frequencies in advance so that information output from the respective radio towers 101 is not mixed. Therefore, the portable terminal 106 reads out a list of these radio waves from the ROM 122 and tries to receive the radio wave information 104 while selecting the frequencies one by one sequentially. If the radio wave information 104 of the strongest reception level is equal to or higher than the predetermined reception level, the reception is successful.
- step S207 If reception of the radio wave information 104 is successful in this way (step S207: Y), the radio wave information reception mode is executed as a communication mode using the radio wave information 104 (step S208). This will be described in detail later.
- step S207: N When the reception of the radio wave information 104 is successful (step S207: N), the radio wave tower 101 as shown in Fig. 2 does not exist in the area, or the radio wave information transmission device 102 There may be a failure in the transmission system. In this case, a simple search for the center frequency using the radio wave information 104 is impossible. Therefore, in this case, the center frequency corresponding to the conventional power described in FIG. 15 is scanned one by one, and the all-scan communication mode is executed (step S209). In this case, the frequency corresponding to the communication method of the mobile terminal 106 is narrowed. The process of selecting the frequency one by one until the center frequency where communication is possible is found. Will be done. Of course, if the GPS receiving unit 127 shown in FIG.
- the frequency search range of the country or region is stored in the ROM 122 in advance, so It is possible to limit the range. Since this all-scan communication mode has also been used in the past, a detailed description of its execution is also omitted.
- FIG. 7 specifically shows the processing in the radio wave information reception mode in step S208 of FIG.
- the CPU 121 of the portable terminal 106 shown in FIG. 3 reads the own terminal information such as the manufacturer and model of the own terminal stored in the ROM 122 (step S221).
- a list of frequencies corresponding to the own terminal recorded in the communication data area of the received radio wave information 104 is extracted (step S222).
- the received radio wave information 104 belongs to the radio wave information service area 151 (Fig. 5), and is divided into communication data used for communication of the mobile terminal 106 and broadcast data for viewing the broadcast.
- a list of center frequencies of the base station 110 corresponding to the communication system such as the CDMA system of the corresponding maker is extracted.
- the mobile terminal 106 searches for the center frequency when communicating with the nearest base station 110 in the list. At this time, it is first determined whether or not there are many extracted search targets (step S223). For example, Tokyo Tower (Tokyo), 333 meters high, Ostankino TV Tower (Moscow), 540 meters high, CN Tower (Canada), 553 meters high, or 610 meters high 2 In the case of a radio tower such as Tokyo Tower (Tokyo), the radio wave information service area 151 is also widened. Therefore, the search target of the center frequency of the base station 110 also increases.
- search targets For example, Tokyo Tower (Tokyo), 333 meters high, Ostankino TV Tower (Moscow), 540 meters high, CN Tower (Canada), 553 meters high, or 610 meters high 2
- the radio wave information service area 151 is also widened. Therefore, the search target of the center frequency of the base station 110 also increases.
- step S223 When the search target is larger than the predetermined amount (step S223: Y), the CPU 121 acquires the current position information of the mobile terminal 106 by the reception of the GPS receiving unit 127 (step S224). Then, the center frequency to be searched is narrowed down using this position information (step S225). Next, a search is made while actually communicating which one is suitable for communication with the portable terminal 106 with respect to the narrowed center frequency (step S226). As a result, subsequent communication with the base station 110 is performed using the selected one center frequency (step S227).
- step S223 N
- step S223 N
- step S223 N
- Each of the extracted center frequencies is sequentially searched while actually communicating (step S226).
- step S227 subsequent communication with the base station 110 is performed using the selected one center frequency (step S227).
- the mobile terminal 106 of this embodiment has a television viewing function. Therefore, the processing when the mobile terminal 106 views a television program will be described next.
- FIG. 8 shows an outline of the television receiver shown in FIG.
- the television receiver 136 is a television broadcast tuner unit 164 having a UHFZVHF (Ultra High Frequency / Very High Frequency) antenna 161 for receiving digital terrestrial broadcasts and analog terrestrial broadcasts, a tuner 162 for receiving broadcasts, and a channel decoder 163. , TV viewing part 1 65.
- the tuner 162 of the embodiment corresponds to both digital and conventional analog terrestrial waves as will be described later.
- the channel decoder 163 is configured by a mopile dedicated LSI (Large Scale Integration), and processes for digital terrestrial broadcasting such as OFDM (Orthogonal Frequency Division Multiplexing) demodulation, layer separation, deinterleaving, and Viterbi decoding. I do.
- the TV viewing unit 165 selects a channel by channel scanning, and decodes sound and video using a built-in AV (Audio Visual) decoder.
- Video is compressed with MPEG4 (Moving Picture Experts Group 4), and audio data is compressed with MPEG2'AAC (Moving Picture Experts Group phase 2- Advanced Audio Coding).
- the AV decoder can be provided in the display control unit 131 and the audio input / output control unit 133 shown in FIG.
- the television receiving unit 136 of the present embodiment selectively receives a broadcast for one channel for receiving terrestrial digital broadcast mopile.
- the video of the received channel is also output with display 132 (Fig. 3), and the sound is output from the external speaker! /, Not shown!
- Fig. 9 shows the relationship between each broadcast channel and segment in the one-segment terrestrial digital broadcasting adopted in Japan.
- Each TV show channel Data 171, 171, 171,... Are 13 segments 172 to 172
- the television receiver 136 shown in FIG. 3 selectively receives the central seventh segment 17 2.
- This seventh segment 172 contains
- FIG. 10 shows another terrestrial digital broadcast data format that can be received by the portable terminal of the present embodiment.
- This is the DVB-H (Digital Video Broadcasting Handheld) system which is mainly adopted in Europe.
- DVB-H format all of one specific channel 174 is broadcast content of each other channel 175, 175, ...
- ... corresponds to one channel of segmented terrestrial digital broadcasting.
- FIG. 11 shows the flow of processing when viewing a television with the mobile terminal of the present embodiment.
- the portable terminal 106 of this embodiment first performs the processing for communication shown in FIG. 6 when the power is turned on. Therefore, when the portable terminal 106 is turned on at a new location such as a foreign country, the radio wave information 104 at that location is stored in the RAM 123 (FIG. 3) in step S206 of FIG.
- the radio wave information 104 is similarly stored in the RAM 123 when the power is first turned on in a country such as Japan where the mobile terminal 106 is purchased.
- Step S243 If it is determined that the broadcasting format is a one-segment system of terrestrial digital broadcasting, Step S243: Y), and the one-segment receiving circuit in the tuner 162 is selected (Step S245). Then, the program of the broadcast station with the channel number stored in the RAM 123 is received and played back (step S246). This is for the time being to output the current broadcast content on the previously selected channel and to change the channel if necessary. As a result, when watching television for the first time in a new land, the program of the channel number selected on the previous land will be temporarily displayed. In the case of the present embodiment, when there is no broadcasting station with the corresponding channel number, the contents of the program of the broadcasting station with the channel number set as the default value are output instead.
- step S243: N step S244: Y
- step S247 DVB-H format in tuner 162 Is selected.
- step S246 the program of the broadcasting station with the channel number V, which is stored in the RAM 123, is received and played back (step S246).
- step S244 the analog reception circuit in the tuner 162 is selected (step S248).
- analog receiver circuits NTSC (National Television System Committee) circuits used in Japan and the United States, and PAL (Phase Alternation by Line) systems used in many other regions such as Europe. A circuit is provided, and one of these is selected depending on the broadcast format!
- TDMB Transmission-Digital Multimedia Broadcasting
- Media FLO registered trademark
- Link Only a service for wholesale multi-channel video distribution to carriers
- the communication terminal such as a mobile terminal, it may be determined whether or not it corresponds to the communication system of these other terrestrial digital broadcasting before selecting the analog reception circuit as the next best measure in step S248.
- step S248 Even when the receiving circuit of tuner 162 is set by the processing of step S248, the receiving circuit receives and reproduces the program of the broadcasting station of the channel number stored in RAM 123 (step S248). S246).
- step S249 When viewing of the television is started in this way, the user changes the program content.
- the channel operation can be performed (step S249) or the television viewing operation can be terminated (step S250).
- step S249: Y When channel operation is performed (step S249: Y), the channel number is stored in the RAM 123 (step S251), and the process returns to step S246.
- step S250: Y When the user operates the end of viewing the television (step S250: Y), the processing for viewing the television ends (end).
- the power described mainly with respect to the mobile terminal 106 may be the same as that when the notebook computer 107 uses the wireless communication function for communication including a call or receives a broadcast. it can.
- a communication terminal not shown
- a PDA personal area network
- the radio wave information 104 is acquired in each land, it is possible to provide a service that allows the user to preferentially select information that is superior in quality. For example, assume that a TV station broadcasts the same broadcast content in a specific area using both the conventional analog terrestrial and digital terrestrial systems. In this case, the ability to receive high-quality reception of images and sound quality is generally better when receiving a digital terrestrial broadcast, while the user remains in the conventional analog terrestrial channel selection without knowing this. There is a case to watch. In order to eliminate such inconvenience, note information indicating the relationship between the analog terrestrial and digital terrestrial channels may be included in the radio wave information 104.
- FIG. 12 shows a flow of channel selection operation when such annotation information exists in the radio wave information as a first modification of the present invention.
- the CPU 121 shown in FIG. 3 determines whether the channel to be broadcast is based on the analog terrestrial system (step S262). ), If it is a digital terrestrial system (N), the frequency of the channel is selected without any change (step S263). That is, in this case, neither the broadcasting format nor the channel is changed.
- step S262 when the user selects a channel based on the analog terrestrial system (step S262: Y), the quality of the program and the quality of the channel is superior in terms of image and sound quality.
- Search the radio wave information 104 to see if there is a note that indicates the broadcast format that stands (Ste S264). In this example, it is a search for whether the same program exists in the digital terrestrial system. If it does not exist (step S265: N), the process proceeds to step S263, and the channel selection is performed with the same broadcasting format as the channel selected by the user.
- step S265 If the same program exists in the digital terrestrial system (step S265: Y), the broadcast format and the channel indicated in the note information are changed according to the note information (step S266). Then, the channel frequency after the change is selected (step S263).
- the display 132 Fig. 3 for a certain period of time. Go and wait for user selection. In this case, it is not particularly necessary for the device side to determine whether the same program is broadcasted! /,
- the broadcast system and channel change as described above may be performed between radio AM broadcast and FM broadcast.
- the user can receive a better viewing service within the capabilities of the mobile terminal 106 or the notebook computer 107.
- FIG. 13 shows a process of controlling the mobile terminal in the second modified example of the present invention, and shows a process of a changed part in the process shown in FIG. 6 of the embodiment. It is.
- the “other communication environment” means, for example, when there is another frequency used by the same operator, other center frequencies, radio systems, frame timings, This means changing the setting to the pilot code.
- the communication environment is set (step S302), and the process proceeds to step S205 to perform communication.
- the process proceeds to step S206 and attempts to receive the radio wave information 104 from the radio tower 101.
- FIG. 7 of the embodiment describes the search and selection of the center frequency. However, in the case where other information such as frame timing and pilot information is described as the radio wave information 104, these are described. It is natural that the communication environment of the mobile terminal 106 can be set based on the start of communication with the base station 110 more smoothly.
- FIG. 14 shows an outline of communication control for the base station of the mobile terminal in the third modification of the present invention.
- FIG. 14 shows the case where the communication environment is set for the center frequency and the frame timing.
- Step S226 and Step S227 are embodied. This will be explained with FIG.
- the mobile terminal 106 extracts the corresponding communication method, frequency allocation center frequency, and frame timing based on the type of the terminal (step S401). Then, one of the center frequencies and one frame timing that may be transmitted by the base station 110 are combined to try to receive a signal from the base station 110 (step S402). If the reception is not successful (step S 403: N), the center frequency and the frame timing are changed to another combination of the extracted ranges (step S 404), and the process returns to step S 402 to attempt reception.
- step S403: Y when the signal is successfully received from the base station 110 at a certain center frequency and frame timing (step S403: Y), the frame timing of the signal transmitted from the base station 110 is used as a starting point. Then, one of the frame timings when the mobile terminal 106 extracted in step S401 transmits to the base station 110 is selected, and a response is transmitted to the base station 110 at this frame timing (step S405). If the response of the mobile terminal 106 is not successful (step S406: N), change to another frame timing extracted as the frame timing when the mobile terminal 106 transmits to the base station 110 ( Step S407), the process proceeds to step S405, and responds to the base station 110.
- step S406 Y
- step S408 the set center frequency and frame are set.
- step S408 the subsequent communication will continue between the two.
- the power including the radio system, frame timing, pilot code and frequency, and operator information are listed. It is not limited to.
- the frequency of the control signal used when starting communication may be specified as a predetermined frequency.
- OFDM Orthogonal Frequency Division Multiplexing
- the present invention is not applied only to the specific cellular phone communication system such as the PDC system listed above.
- the present invention is characterized in that radio wave information relating to various radio waves used for communication or broadcasting is transmitted by radio waves having a predetermined specific frequency, and is naturally applied to various communication systems.
- the power wireless RAN described in the example of the mobile terminal 106 or the notebook personal computer 107 using the base station 110 connected to the mobile communication network 112 has the frequency of The present invention can also be applied to searches.
- the television viewing has been described.
- the present invention is similarly applied to the selection of the frequency of a radio station such as AM (Amplitude Modulation), FM (Frequency Modulation), and terrestrial digital radio. Can be applied to.
- the radio wave tower and the small transmission facility power have been described as transmitting the radio wave information 104.
- FIG. 1 An explanatory diagram showing the principle of frequency search in the use frequency band and WCDMA in the mobile communication service.
- FIG. 2 is a system configuration diagram showing an outline of a communication system in an embodiment of the present invention.
- FIG. 5 is an explanatory diagram showing service areas for communication with a mobile terminal and for television broadcasting in this embodiment.
- FIG. 7 is a flowchart showing processing in the radio wave information reception mode in step S208 of FIG.
- FIG. 8 is a block diagram showing an outline of the television receiver shown in FIG.
- FIG. 9 is an explanatory diagram showing the relationship between each broadcast channel and segment in 1-segment terrestrial digital broadcasting.
- FIG. 10 is an explanatory diagram showing each broadcast channel in DVB-H terrestrial digital broadcasting.
- FIG. 11 is a flowchart showing the flow of processing when viewing a television on the mobile terminal of the present embodiment.
- FIG. 13 is a flowchart showing the process of the changed part of the control process of the mobile terminal shown in FIG. 6 as the second modification of the present invention.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Transceivers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008515488A JP4650570B2 (ja) | 2006-05-11 | 2007-05-01 | 送信装置、制御プログラム、送信方法 |
CN2007800170655A CN101444023B (zh) | 2006-05-11 | 2007-05-01 | 发射设备、接收设备、广播接收系统和通信方法 |
US12/300,360 US8391914B2 (en) | 2006-05-11 | 2007-05-01 | Transmitting apparatus, communication apparatus, receiving apparatus, communication system, broadcast receiving system, control program, communication method and broadcast receiving method |
EP07742767A EP2017984A4 (en) | 2006-05-11 | 2007-05-01 | TRANSMISSION DEVICE, COMMUNICATION DEVICE, RECEPTION DEVICE, COMMUNICATION SYSTEM, EMISSION RECEIVING SYSTEM, CONTROL PROGRAM, COMMUNICATION METHOD AND EMISSION RECEIVING METHOD |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006132180 | 2006-05-11 | ||
JP2006-132180 | 2006-05-11 |
Publications (1)
Publication Number | Publication Date |
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WO2007132675A1 true WO2007132675A1 (ja) | 2007-11-22 |
Family
ID=38693774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/059332 WO2007132675A1 (ja) | 2006-05-11 | 2007-05-01 | 送信装置、通信装置、受信装置、通信システム、放送受信システム、制御プログラム、通信方法、放送受信方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8391914B2 (ja) |
EP (2) | EP2017984A4 (ja) |
JP (1) | JP4650570B2 (ja) |
CN (1) | CN101444023B (ja) |
WO (1) | WO2007132675A1 (ja) |
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JP5244910B2 (ja) * | 2008-08-25 | 2013-07-24 | 株式会社エヌ・ティ・ティ・ドコモ | 配信システム、配信装置、端末装置及び方法 |
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US20100124934A1 (en) * | 2008-11-20 | 2010-05-20 | Nokia Corporation | Wireless System Improvements Based On Location Positioning System Data |
JP2012120012A (ja) * | 2010-12-02 | 2012-06-21 | Fujitsu Semiconductor Ltd | 受信装置、及び受信方法 |
EP3505064B8 (en) | 2011-09-23 | 2020-08-12 | Dexcom, Inc. | Systems and methods for processing and transmitting sensor data |
AU2014346795A1 (en) | 2013-11-07 | 2016-03-10 | Dexcom, Inc. | Systems and methods for transmitting and continuous monitoring of analyte values |
JP7103411B2 (ja) * | 2018-05-23 | 2022-07-20 | 日本電気株式会社 | 無線通信識別装置、無線通信識別方法およびプログラム |
CN110045627A (zh) * | 2019-05-20 | 2019-07-23 | 浙江和也健康科技有限公司 | 一种分布式智能家居控制系统及方法 |
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Also Published As
Publication number | Publication date |
---|---|
EP2017984A1 (en) | 2009-01-21 |
JP4650570B2 (ja) | 2011-03-16 |
CN101444023B (zh) | 2013-10-23 |
US8391914B2 (en) | 2013-03-05 |
EP2017984A4 (en) | 2010-12-01 |
US20090117844A1 (en) | 2009-05-07 |
EP2838214A2 (en) | 2015-02-18 |
JPWO2007132675A1 (ja) | 2009-09-24 |
CN101444023A (zh) | 2009-05-27 |
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