WO2003037028A1

WO2003037028A1 - Transmission/reception system and mobile receiver

Info

Publication number: WO2003037028A1
Application number: PCT/JP2002/010920
Authority: WO
Inventors: Shun-Ichi Sato
Original assignee: Sharp Kabushiki Kaisha
Priority date: 2001-10-24
Filing date: 2002-10-21
Publication date: 2003-05-01
Also published as: JPWO2003037028A1

Abstract

A transmission/reception system (1) and a mobile receiver (4) inform users of easy-to-understand information on whether or not a mobile receiver such as a cell phone can receive service spatially and timewise. The transmission/reception system (1) comprises a transmission source (2) for sending data or contents-containing information in limited time zones, and a mobile receiver (4) for receiving transmission information from the transmission source, wherein the transmission source (2) sends information that no transmission is serviced in time zones in which data or contents-containing information is not sent, and the mobile receiver (4) extracts information that no transmission is serviced from transmission information from the transmission source (2). The mobile receiver (4), on extracting no-transmission information from transmission information from the transmission source (2), invalidates an operating means that displays corresponding data or contents-containing information.

Description

Description Transmission / reception system and mobile receiver

The present invention relates to a transmission / reception system including a base station and a mobile station, such as a mobile phone, a mobile phone, and a simple mobile phone. Background art

Terrestrial transmission / reception systems include mobile phones such as digital car phones and PHS (Pe rs o n a d H p o n e S y s e s t e m) as mobile telephone systems, and are widely used taking advantage of their characteristics. The transmission / reception frequency of mobile phones and PHS is 800MHz / l 500MHz, 900MHz, access method is TDMA FDD, multi-carrier TDMAZ TDD, and modulation method is TTZ4 shift QPSK. .

As a broadcasting service, in addition to the current analog broadcasting from 2003, terrestrial digital television broadcasting will be launched in the three major metropolitan areas of the East, Chukyo and Kinki, and will be broadcast nationwide thereafter. . Various services are being considered for terrestrial digital broadcasting, including mobile reception. In other words, in addition to fixed reception at home, it is possible to provide services suitable for mobile reception by car and reception by mobile terminals. In digital terrestrial television broadcasting, one channel of radio waves is divided into 13 bands (segments), and the transmission method and the amount of transmitted information can be set individually for each segment.

As for mobile phones, it is assumed that services are provided at all times, and it is not necessary to detect the presence or absence of a temporal service.Spatial detection, that is, detection and notification means within or outside the service area is important Becomes If the service is not available in the service area, it can be recognized as a failure on the base station side.

On the other hand, in terrestrial analog TV broadcasting, for the fixed type TV receiver, the broadcasting service that can be received at the time of installation is set, so the spatial service of each time is set. It is not necessary to detect the presence / absence, and the presence / absence of a temporal broadcast service can be determined by the presence / absence of TV broadcast video (including test patterns).

Looking at the issues with conventional mobile receivers such as mobile phones, information that a terminal such as a mobile phone was within or outside the service area was reported to the user via an LCD display or LED. However, when digital terrestrial broadcasting is to be received by a mobile receiver such as a mobile phone, the broadcasting time for mobile phones is expected to be limited, unlike the service for fixed TV. In this case, there is a problem that it is impossible to determine whether the service cannot be received spatially or temporally from the viewpoint of the mobile receiver. Disclosure of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mobile receiver, such as a mobile phone, with information on whether a mobile receiver such as a mobile phone can receive a service spatially and temporally in a more easily understandable manner. It is an object of the present invention to provide a transmitting and receiving system and a mobile receiver.

In order to solve the above problems, the present invention mainly employs the following configuration. A transmission source configured to transmit information including data or content for a limited time zone, and a mobile receiver configured to receive transmission information from the transmission source, wherein the transmission source is A transmission / reception system for transmitting information including data or content: I transmitting a blue report, and the mobile receiver extracting information on a transmission status from the transmission source;

In addition, it is composed of two or more transmission sources for transmitting information including data or content within a limited time zone, and a mobile receiver capable of receiving transmissions from the two or more transmission sources. A transmission / reception system, wherein information on whether or not a specific transmission source among the two or more transmission sources is transmitting information including the data or the content is communicated to another transmission source, and the communication is performed. The mobile receiver, based on the superimposed transmission information, transmits the specific transmission source by superimposing information on whether or not the received at least one transmission source is performing the transmission on its own transmission information. A transmission / reception system characterized by extracting information about Also, a mobile receiver that receives transmission information from a transmission source that transmits information including data or content for a limited time period, wherein the transmission information includes transmission of information including the data or content. The mobile receiver includes information indicating that transmission is not being performed during a time period when transmission is not being performed, and the mobile receiver extracts information indicating that transmission is not being performed from the transmission information. A mobile receiver that disables operations related to displaying the corresponding received information.

Also, a mobile receiver that receives transmission information from two or more transmission sources that transmits information including data or content for a limited time zone, wherein the transmission information includes the data or content. The mobile receiver includes information indicating that transmission is not performed during a time period in which the information is not transmitted, and the mobile receiver extracts information indicating that transmission is not performed from the transmission information, A mobile receiver for invalidating an operation related to display of reception information corresponding to the extracted transmission information. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a configuration block diagram illustrating an outline of a transmission / reception system according to a first embodiment of the present invention.

FIG. 2 is a configuration block diagram of the mobile receiver according to the first embodiment.

FIG. 3 is a flowchart showing the receiving operation in the first embodiment. FIG. 4 is a configuration block diagram illustrating an outline of a transmission / reception system according to the second embodiment of the present invention.

FIGS. 5A and 5B are flowcharts showing the receiving operation in the second embodiment.

FIG. 6 is a diagram showing an example of a menu screen of a mobile phone capable of receiving television. FIG. 7A is a diagram showing an example of a mark when content information is present.

FIG. 7B is a diagram showing an example of a mark without content information. BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment]

Refer to FIGS. 1 and 2 for the transmission / reception system according to the first embodiment of the present invention. This will be described below. FIG. 1 shows a transmitting / receiving system 1 including a transmitting station 2 and a mobile receiver 4. Here, a state 5 with content information and a state 6 without content information are illustrated for convenience.

Figure 2 shows the antenna 11, a reception electric field detection circuit 12 that detects the reception electric field level of the radio wave from the transmitting station received from the antenna 11, and a reception signal processing unit that extracts the reception electric field level and the presence or absence of content information 13, a control unit 15 such as a CPU that controls the entire mobile receiver 4, and an LCD that displays the reception electric field level detected by the reception electric field detection circuit 2, presence / absence information of content information, and content information etc. The mobile receiver 4 is basically configured by a display unit 16 and an operation unit 14 having a plurality of operation buttons for inputting an instruction by a user.

The mobile receiver includes a receiving unit (not shown) for receiving and demodulating radio waves when a call is received and a telephone call, a transmitting unit for performing modulation transmission when a call is made and a telephone call, and a transmission / reception code. It has a decoding circuit, a speaker / microphone that listens to the user, a tuner that selects a transmitting station, a demodulator that demodulates transmission radio waves, and a decoder that decodes compressed content information.

Next, the operation of the first exemplary embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3. FIG. In FIG. 1, when the mobile receiver 4 views the content information, it is necessary to know whether or not the content information can be viewed. In this case, by superimposing information indicating the presence or absence of the content information on the radio wave from the transmitting station, the mobile receiver can extract the information and know whether or not the content information can be viewed.

In FIG. 2, a mobile receiver 4 receives a radio wave from a transmitting station with an antenna 11 and detects a field intensity level of the radio wave with a reception electric field detection circuit 12. Whether the area is within or outside the service area can be determined by this electric field strength level. Further, the reception signal processing section 13 extracts the presence / absence information of the content information, and the control section 15 displays the presence / absence information of the content information on the LCD display section. The content information is displayed in the section.

At this time, if the information indicating that there is no content information is extracted, the information indicating that there is no content information is displayed on the LCD display unit, and a predetermined key input of the operation unit 14 is disabled by the control unit 15. Not switch to the display of content information To do. As a result, useless power consumption due to displaying a noise screen having no content such as video can be suppressed, and power consumption of the mobile receiver can be reduced. Figure 3 shows a flowchart for the mobile receiver. If there is no signal strength at branch 22, display outside the area. If the radio wave strength is present, next, in branch 23, the transmission service is determined. If there is no transmission service, that is, if information indicating that there is no content information is extracted, the absence of the transmission service is displayed on the LCD display unit, and switching to the content information display is disabled. If there is a transmission service, content information can be displayed and content information is displayed on the LCD display.

[Second embodiment]

Next, a transmission / reception system according to a second embodiment of the present invention will be described below with reference to FIG. FIG. 4 shows a transmitting / receiving system 31 including a transmitting station 32, another transmitting station 33, and a mobile receiver 34. Here, in the transmission radio wave from the transmitting station 32, there is a state 35 with content information and a state without content information 36 (this 36 is information 6 indicating that there is no content information in FIG. ), Which is a state in which radio waves are not transmitted.) For convenience, the radio waves transmitted from the transmitting station 3 3 indicate that there is content information 38 and the information that there is no content information 39 And are shown for convenience.

Next, the operation of the second exemplary embodiment of the present invention will be described with reference to FIGS. 4, 5A, and 5B. In FIG. 4, the transmission / reception system 31 has a configuration in which another transmission station 33 is added to the transmission / reception system 1 of FIG. Here, it is the transmitting station 3 2 that transmits the content information, and the transmitting station 3 3 transmits information indicating whether the transmitting station 32 is transmitting the content information or not. 2) (content information transmission presence / absence notification 37), and transmits to mobile receiver 34 information on the presence / absence of content information from transmitting station 32.

5A and 5B show flowcharts of the transmitting station 32 and the transmitting station 33. FIG. FIG. 5A illustrates the operation of the transmitting station 32. In the branch 42, the transmitting station 32 performs the transmission service as it is if there is a transmission service. Notify the transmitting station 33 that there is no data (4 3). FIG. 5B illustrates the operation of the transmitting station 33. In branch 4 5, when the transmitting station 33 notifies the transmitting station 32 that there is no transmitting service (37), the transmitting station 33 superimposes information 39 indicating that there is no transmitting service on the radio wave, 3 Send to 4. On the other hand, at branch 45, the transmitting station 33 performs normal transmission (for example, mobile phone communication) when there is no notification from the transmitting station 32 that there is no transmission service. The configuration and operation of the mobile receiver 34 of the transmission / reception system 31 are the same as those shown in FIGS. 2 and 3 used for describing the first embodiment.

As described above, in the description of the first embodiment and the second embodiment, the case of transmitting or notifying the information that there is no content information has been described. The same effect can be obtained even if the information is transmitted. In the first and second embodiments described above, when the mobile receiver receives the information as to whether or not the information including the data or the information including the data is being transmitted, the mobile receiver is provided with an easy-to-understand LCD. For example, an embodiment of the present invention will be described with reference to FIG.

Figure 6 shows an example of a menu screen of a mobile phone that can receive TV. Menu screen 51 includes icons such as battery mark 52, electric field strength display mark 53, content information mark 54, etc., as well as TV reception 55, video shooting 56, video management 57, and web 5 A menu such as 8 is displayed. Here, when there is content information (television broadcasting), the content information mark 54 becomes a state with content information. Fig. 7A shows an example of a mark with content information, and Fig. 7B shows an example of a mark without content information. In this way, it is possible to present the presence or absence of content information to the user in an easy-to-understand manner.

Similarly, when a plurality of contents (TV programs) are transmitted from a plurality of transmitting stations, the name of the transmitting station is presented in a menu format. It is also possible to present with a mark.

It is also possible to indicate the presence or absence of content information by adding “*” before the name of the transmitting station on the menu display as shown below.

* Transmission station 1 (content information available)

Sender station 2 (no content information)

Sender 3 (no content information) * Transmission station 4 (with content information)

* Sending station 5 (with content information)

Also, by associating the transmitting station (channel number) with the numeric keypad of the mobile phone, it is possible to indicate the presence or absence of the content information by a presentation method such as blinking the numeric keypad.

As described above, according to the present invention, it is possible to determine whether the service cannot be received temporally because the transmitting station includes means for transmitting information on whether or not there is content information from the transmitting station by superimposing it on the radio wave. .

In addition, information about whether or not there is content information from one transmitting station is sent to another transmitting station, and the transmitting station that has received the communication checks whether there is content information from the previous transmitting station. The system is equipped with a means for transmitting information by superimposing it on radio waves, so it is possible to determine whether services cannot be received spatially or temporally. (Spatial services cannot be received from another transmitting station.) Is assumed).

In each of the above cases, when information indicating that the content information is not transmitted is extracted on the mobile receiver side, a means for disabling an operation for displaying the corresponding content information is provided. Therefore, useless power consumption due to displaying a noise screen having no content such as video can be suppressed. As a result, the power consumption of the mobile receiver can be reduced.

That is, a transmission / reception system comprising: a transmission source for transmitting information including data or content for a limited time zone; and a mobile receiver for receiving transmission information from the transmission source. The transmission source transmits information indicating whether or not the information including the data or the content is transmitted, and the mobile receiver includes a unit that extracts information on a transmission status from the transmission source. In addition, the mobile receiver can easily inform the user of the information on whether the service can be received temporally.

In addition, it is composed of two or more transmission sources for transmitting information including data or content within a limited time zone, and a mobile receiver capable of receiving transmissions from the two or more transmission sources. A transmission / reception system, comprising: information on whether or not a specific transmission source among the two or more transmission sources is transmitting the information including the data or the content. And the mobile receiver receives the notification and superimposes information on whether or not the transmission source is performing the transmission on its own transmission information. Means for extracting information about the specific transmission source from the transmitted information, so that the mobile receiver can easily understand the information whether the service can be received spatially and temporally to the user. I can let you know.

Also, a mobile receiver that receives transmission information from a transmission source that transmits information including data or content for a limited time zone, wherein the transmission information includes transmission of the information including the data or content. The mobile receiver includes information indicating that transmission is not being performed during a time period when transmission is not being performed, and the mobile receiver extracts information indicating that transmission is not being performed from the transmission information. Equipped with a means to disable operations related to the display of the corresponding received information, it is possible to suppress unnecessary power consumption by displaying meaningless video noise information, and reduce the power consumption of the mobile receiver Leads to.

It is possible to inform the user more easily of information on whether the mobile receiver can receive the service spatially and temporally.

Also, a mobile receiver that receives transmission information from two or more transmission sources that transmits information including data or content for a limited time zone, wherein the transmission information includes the data or content. When the mobile receiver extracts the information indicating that the transmission is not performed from the transmission information, the mobile receiver includes the information indicating that the transmission is not performed during the time period when the information including the information is not transmitted. By providing a means for invalidating an operation related to display of reception information corresponding to the extracted transmission information, it is possible to suppress wasteful power consumption due to display of meaningless video noise information. This leads to lower power consumption of the mobile receiver.

Claims

The scope of the claims

1.A transmission / reception system comprising: a transmission source that transmits information including data or content for a limited time period; and a mobile receiver that receives transmission information from the transmission source.

The transmission source transmits a message indicating whether the transmission of the information including the data or the content is performed,

The transmission / reception system, wherein the mobile receiver extracts information on a transmission status from the transmission source.

2. It is composed of two or more transmission sources for transmitting information including data or content for a limited time zone, and a mobile receiver capable of receiving transmissions from the two or more transmission sources. A transmitting / receiving system,

Information of whether or not a specific transmission source among the two or more transmission sources is transmitting information including the data or the content is communicated to another transmission source, and at least one of the communication sources is notified. The transmission source superimposes information on whether or not the transmission is performing the transmission on its own transmission information, and transmits the transmission source.

The transmission / reception system, wherein the mobile receiver extracts information on the specific transmission source from the superimposed transmission information.

3. A mobile receiver for receiving transmission information from a transmission source for transmitting information including data or content for a limited time period,

The transmission information includes a report that the transmission is not performed during the night or during a time period in which the information including the content is not transmitted,

The mobile receiver, when extracting information indicating that the transmission is not performed from the transmission information, invalidates an operation related to display of reception information corresponding to the extracted transmission information. Receiving machine. '

4. A mobile receiver for receiving transmission information from two or more transmission sources for transmitting information including data or content for a limited time period,

The transmission information includes information indicating that transmission is not performed during a time period during which transmission of the information including the data or the content is not performed, The mobile receiver, when extracting information indicating that the transmission is not performed from the transmission information, invalidates an operation related to display of reception information corresponding to the extracted transmission information. Receiving machine.