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WO2013088685A1 - Procédé, support de stockage lisible par ordinateur et terminal de communication - Google Patents

Procédé, support de stockage lisible par ordinateur et terminal de communication Download PDF

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Publication number
WO2013088685A1
WO2013088685A1 PCT/JP2012/007835 JP2012007835W WO2013088685A1 WO 2013088685 A1 WO2013088685 A1 WO 2013088685A1 JP 2012007835 W JP2012007835 W JP 2012007835W WO 2013088685 A1 WO2013088685 A1 WO 2013088685A1
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WIPO (PCT)
Prior art keywords
congestion
degree
wireless communication
communication terminal
communication
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PCT/JP2012/007835
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English (en)
Inventor
Norio Shimo
Shinichiro Tsuda
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Sony Corp
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Sony Corp
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Publication of WO2013088685A1 publication Critical patent/WO2013088685A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Definitions

  • Japan Patent Application No. 2011-272176 titled “DISPLAY CONTROL DEVICE, DISPLAY CONTROL METHOD AND PROGRAM,” filed December 13, 2011.
  • the present disclosure relates to a display control device, display control method and program.
  • Wireless communications services such as cellular communications and wireless LAN (Local Area Network) communications
  • communication terminals for using wireless communications services have recently come into wide use.
  • the communication terminals in general, use a set of antenna bars to display the signal strength of the wireless communications services.
  • the user is able to know the intensity of radio signals that the communication terminals receive.
  • the communication terminals can inform the user of a variety of information by a screen display.
  • Japanese Patent Publication No. 2005-354300 discloses a communication terminal which displays the direction of the communications partner in near distance wireless communications.
  • the above-mentioned signal strength that the antenna bars indicate is the sum of radio-frequency energy in a reception band, which includes the energy of interfering waves as well as waves to be originally demodulated. That is, there are many cases in which the signal strength indicated by the antenna bars are different from the reception strength of the waves which originally have to be demodulated. Furthermore, the correlation between the signal strength and the quality of the actual communication rate in data communications is low. Therefore, there may be cases in which even at a high signal strength indicated by the antenna bars, the actual communication rate is low.
  • a wireless communication device provides suitable information regarding the wireless communication service to the user (e.g., information from which the user can determine a course of action that will improve the quality of wireless communication such as moving to a less congested location).
  • a method including displaying an indicator on a display of a communication terminal, the indicator indicating information regarding congestion of a wireless communication service.
  • a method including detecting, with a communication terminal, one or more radio signals in a frequency band of a wireless communication service; analyzing the one or more radio signals, with the communication terminal, to obtain values of attributes of radio-signal traffic in the frequency band of the wireless communication service; and while displaying a first indicator of a first value of a first of the attributes of the radio-signal traffic in the frequency band of the wireless communication service, displaying a second indicator of a second value of a second of the attributes of the radio-signal traffic in the frequency and of the wireless communication service, wherein the attributes relate to use of the frequency band of the wireless communication service by one or more wireless communication devices, and wherein the first and second indicators are displayed on a display of the communication terminal.
  • a computer-readable storage medium storing instructions which, when executed, cause a communication terminal to perform a method, including displaying an indicator on a display of the communication terminal, the indicator indicating information regarding congestion of a wireless communication service.
  • a communication terminal including a display; a processor; and a memory operatively coupled to the processor, the memory storing instructions which, when executed by the processor, cause the communication terminal to perform a method, including displaying an indicator on the display, the indicator indicating information regarding congestion of a wireless communication service.
  • Fig. 1 is an explanatory diagram showing the configuration of a communication system according to an embodiment of the present disclosure.
  • Fig. 2 is an explanatory diagram showing an example of displaying signal strength.
  • Fig. 3 is a functional block diagram showing a communication terminal according to the first embodiment of the present disclosure.
  • Fig. 4 is an explanatory diagram showing a specific example of an object that indicates the degree of congestion.
  • Fig. 5 is an explanatory diagram showing a specific example of a display including an object that indicates the degree of congestion.
  • Fig. 6 is an explanatory diagram showing a modified example of the object that indicates the degree of congestion.
  • Fig. 7 is a flowchart showing the operation of the communication terminal according to the first embodiment.
  • Fig. 1 is an explanatory diagram showing the configuration of a communication system according to an embodiment of the present disclosure.
  • Fig. 2 is an explanatory diagram showing an example of displaying signal strength.
  • Fig. 3 is a functional block diagram showing a communication terminal according to
  • Fig. 8 is a functional block diagram showing a communication terminal according to the second embodiment of the present disclosure.
  • Fig. 9 is an explanatory diagram showing a specific example of a lookup table.
  • Fig. 10 is a flowchart showing the operation of the communication terminal according to the second embodiment.
  • Fig. 11 is an explanatory diagram showing a specific example of a display according to the second embodiment.
  • Fig. 12 is an explanatory diagram showing a specific example of the display according to the second embodiment.
  • Fig. 13 is an explanatory diagram showing the hardware configuration of a communication terminal.
  • multiple components having substantially the same functional configuration are distinguished by adding different alphabet letters after the same reference numeral.
  • multiple structural features having substantially the same functional configuration are differentiated, if necessary, as communication terminals 20A, 20B and 20C.
  • the same reference numeral is assigned thereto.
  • it is simply referred to as a communication terminal 20.
  • the present disclosure will be described in the order of the items listed below.
  • the basic configuration of a communication system 2.
  • the first embodiment 2-1. The configuration of a communication terminal according to the first embodiment 2-2.
  • the operation of the communication terminal according to the first embodiment 3.
  • the operation of the communication terminal according to the second embodiment. 4.
  • a display control device includes: A. an indicator acquisition unit (a congestion degree calculating unit 224, a signal strength measurement unit 228) acquiring different indicators with regard to the wireless communication environment of the same wireless communications service; and B. a display control unit 232 or 234 generating a display corresponding to each of the different indicators acquired by the indicator acquisition unit.
  • an indicator acquisition unit a congestion degree calculating unit 224, a signal strength measurement unit 2248 acquiring different indicators with regard to the wireless communication environment of the same wireless communications service
  • B a display control unit 232 or 234 generating a display corresponding to each of the different indicators acquired by the indicator acquisition unit.
  • Fig. 1 is an explanatory diagram showing the configuration of the communication system in accordance with an embodiment of the present disclosure.
  • the communication system according to an embodiment of the present disclosure includes a plurality of communication terminals 20 and a plurality of base stations 30.
  • the base station 30 supplies a wireless communications service to the communication terminal 20.
  • the base station 30 relays data received from the communication terminal 20 towards a destination, and when receiving data addressed to the communication terminal 20, the base station 30 transmits the data to the communication terminal 20.
  • the communications by the communication terminals 20A and 20B are controlled by the base station 30A, and the communications by the communication terminal 20C are controlled by the base station 30B.
  • the base station 30 is able to communicate with the communication terminal 20 by using Wireless Multiple Access, such as orthogonal frequency-division multiple access (OFDMA), time division multiple access (TDMA), code division multiple access (CDMA), etc.
  • OFDMA orthogonal frequency-division multiple access
  • TDMA time division multiple access
  • CDMA code division multiple access
  • any one of the scrambling codes is assigned to each base station.
  • the base station does a frequency spreading of transmission signals by orthogonal spreading codes (e.g., channelization codes) according to the type of the transmission signals and the communication terminal 20, and does a further frequency spreading by the assigned spreading code, and then transmits the signals.
  • orthogonal spreading codes e.g., channelization codes
  • the types of the transmission signals include CPICH (Common Pilot Channel), Primary-CCPCH (Common Control Physical Channel), DPCH (Dedicated Physical Channel), SCH (Synchronization Channel) and the like.
  • the SCH includes a Primary SCH and Secondary SCH.
  • the Primary and Secondary SCHs are placed at the leading section of each of 15 slots constituting a frame, and the Primary SCH is spread by the C PSC (Primary Synchronization Code) and the secondary SCH is spread by the C SSC (Secondary Synchronization Code).
  • C PSC Primary Synchronization Code
  • C SSC Secondary Synchronization Code
  • the C SSC is of 16 different kinds, and there are 64 combination patterns to be assigned to 15 slots. Any one of the 64 combination patterns is assigned to each base station, and according to the assigned pattern, the frequency spreading of the Secondary SCH in each slot is carried out to be transmitted. Moreover, 512 kinds of scrambling codes is classified into 62 groups, and each group is associated with any one of the 64 combination patters of C SSC .
  • the communication terminal 20 can communicate a variety of contents with other devices via the base station 30.
  • the various contents may include audio data, such as music, lectures and radio programs, video data such as movies, television programs, video programs, photographs, documents, Web pages, painting and diagrams, and games and software, and the like.
  • the display control device may be an information processing apparatus, such as a personal computer (PC), a home video processing device (DVD recorder, VCR, etc.), a personal digital assistant (PDA), a home video game equipment, home appliances, and the like.
  • the display control device may be an information processing apparatus, such as a mobile phone, a Personal Handy-phone System (PHS), a portable music playback device, a portable video processing apparatus, a portable game device, and the like.
  • PHS Personal Handy-phone System
  • the base station 30 may involve a variety of base stations, such as a macrocell base station (eNodeB), a Relay Node relaying communications between the macrocell base station and communication terminals, or a Femto cell (Home eNodeB), which is a small base station designated for a home.
  • eNodeB macrocell base station
  • Home eNodeB Femto cell
  • general communication terminals indicate the signal strength of a wireless communications service by means of antenna bars. For example, the higher the signal strength, the more antenna bars the communication terminal displays, and if the signal strength is weak or there is no radio signal, the sign "Out-of-Range" is displayed, which enable the user to indentify the intensity of the radio signals that the communication terminal receives.
  • the signal strength indicated by the antenna bars is the sum of radio-frequency energy in a reception band (e.g., a frequency band), which includes the energy of interfering waves (for example, the energy of the communications by other terminals in the same cell and interference energy from other cells, etc.) as well as waves that should be originally demodulated. That is, in many cases the signal strength indicated by the antenna bars are different from the reception strength of the radio signals to be originally demodulated. Furthermore, the correlation between the signal strength and the quality of the effective communication rate (the actual communication speed) in data communications is low. Therefore, there may be cases in which even at a high signal strength indicated by the antenna bars, the actual communication rate is low.
  • each embodiment of the present disclosure it is possible to deliver a variety of information about the wireless communication environment to the user.
  • each of the embodiments of the present disclosure will be described in detail.
  • a communication terminal 20-1 according to the first embodiment measures and acquires the signal strength of a wireless communications service as a first indicator with regard to the wireless communication environment of the same wireless communications service, and acquires the degree of congestion of the wireless communications service as a second indicator. Then, the communication terminal 20-1 displays objects each corresponding to one of the signal strength and the degree of congestion.
  • the user can identify not only the radio field of the wireless communications service but also the degree of congestion of the wireless communications service.
  • this will be described in detail with reference to Figs. 3 to 7.
  • Fig. 3 is a functional block diagram showing the communication terminal 20-1 according to the first embodiment of the present disclosure.
  • the communication terminal 20-1 according to the first embodiment includes a communication unit 216, a correlation detection unit 220, congestion degree calculating unit 224, and a signal strength measurement unit 228, a display control unit 232 and a display unit 236.
  • the communication unit 216 is associated with one or more wireless communications services, and has the functions of a radio signal reception unit for receiving radio signals transmitted from the base station 30 which supplies an associated wireless communications service, and a transmission unit for transmitting radio signals to the base station 30.
  • the communication unit 216 for example, can communicate in accordance with CDMA and OFDMA.
  • the correlation detection unit 220 detects a correlation between a received signal received by the communication unit 216 and a plurality of scrambling codes, if a wireless communications service using CDMA is a target.
  • the correlation outputs c 1 -c n of the respective scrambling codes obtained by the correlation detection unit 220 are supplied to the congestion degree calculating unit 224.
  • the correlation detection unit 220 carries out correlation detection, called a three-step cell search.
  • the correlation detection unit 220 can identify a scrambling code having the greatest correlation output, that is, a base station with the lowest propagation loss.
  • the three-step cell search will be briefly described below.
  • the correlation detection unit 220 detects correlation between a received signal and C PSC and detects a reception timing of the Primary SCH (the first step). And the correlation detection unit 220 uses the reception timing of the Primary SCH detected at the first step to detect a pattern having the highest correlation with the received signal among the 64 combination patterns of C SSC (the second step). As a result, a scrambling code group is identified, and synchronization on a frame basis can be secured. Then, the correlation detection unit 220 carries out correlation detection between each of the 8 kinds of scrambling codes included in the identified scramble code group and the received signal, and identifies a scrambling code having the highest correlation output (the third step).
  • the correlation detection by the correlation detection unit 220 is not limited to the three-step cell search.
  • the correlation detection unit 220 may first carry out the correlation detection of the received signal and the preserved scrambling code. Also, if information about the scrambling code of the neighboring cells can be obtained from the broadcast information of the serving cell, the correlation detection unit 220 may perform the correlation detection between the received signal and the scrambling code of the neighboring cells.
  • the congestion degree calculating unit 224 calculates the degree of traffic congestion of the base station 30 providing a target wireless communications service based on a correlation value of each scrambling code that is supplied by the correlation detection unit 220 or a radio signal received by the communication unit 216.
  • the methods of calculating the congestion degree of a wireless communications service using CDMA and the congestion degree of a wireless communications service using OFDMA are described. However, the following methods of calculating the congestion degree are presented as examples, and other methods of calculating the congestion degree are applicable to the present embodiment.
  • the congestion degree of a wireless communications service using CDMA In wireless communications services using CDMA, if the number of DPCH to be multiplexed (i.e., the number of communication terminals belonging in the base station) or the number of HS-DSCH (i.e., the number of high-speed downlink shared channels shared by a plurality of communication terminals in HSDPA) becomes large, each DPCH or each HS-DSCH will be spread, but the correlation output of each scrambling code will be considerably increased.
  • the congestion degree calculating unit 224 calculates the ratio of the correlation output b to the correlation output a for the congestion degree k cong of a wireless communications service by CDMA.
  • the value of total received power (RSSI: Received Signal Strength Indicator) or a value obtained by the RSSI divided by a diffusion rate can be used.
  • the congestion degree of a wireless communications service using OFDMA in a wireless communications service using OFDMA, as part of control information, the allocation information of the sub-carriers of each frame is transmitted. For example, in Mobile WiMAX, sub-carrier allocation information called DL-MAP is transmitted.
  • the congestion degree calculating unit 224 calculates the ratio of the number of sub-carriers allocated to each communication terminal to the number of all sub-carriers of every frame for the congestion degree k cong .
  • the congestion degree calculating unit 224 may calculate the ratio of the number of sub-carriers allocated to each communication terminal to the number of all sub-carriers in uplink for the congestion degree k cong . Moreover, the congestion degree calculating unit 224 may calculate the average of the congestion degree k cong of the downlink and the congestion degree k cong of the uplink for the congestion degree k cong of the wireless communications service.
  • scheduling control information including scheduling information of uplink and the resource allocation of downlink is notified to each communication terminal 20-1 by using downlink control signals (Physical Downlink Control Channel, PDCCH), as with WiMAX.
  • PDCCH Physical Downlink Control Channel
  • the signal strength measurement unit 228 measures the signal strength of radio signals received by the communication unit 216. For example, if a radio signal by CDMA is transmitted by the base station 30, the sum of total received power PTOTAL and interference power I from the other cells, as shown in below Equation 2, can be obtained as signal strength.
  • the signal strength measurement unit 228 may acquire the signal strength of a pilot signal or a preamble signal used for the determination of the base station 30 or frame synchronization.
  • the display control unit 232 generates a display image and displays the image on the display unit 236.
  • the display control unit 232 according to the present embodiment generates a display image containing objects corresponding to the signal strength acquired by the signal strength measurement unit 228 and the degree of congestion calculated by the congestion degree calculating unit 224, respectively. For example, the stronger the signal strength, the greater number of antenna bars the display control unit 232 generates, as shown in Fig. 2.
  • the display control unit 232 generates an object that indicates the degree of congestion calculated by the congestion degree calculating unit 224.
  • the object that indicates the degree of congestion will be described with reference to the drawings.
  • Fig. 4 is an explanatory diagram showing a specific example of the object that indicates the degree of congestion.
  • the display control unit 232 may generate objects of different characters and colors and the like according to the degrees of congestion calculated by the congestion degree calculating unit 224.
  • the congestion degree calculating unit 224 may generate an object 40A, a large portion of whose area is colored in red, along with the word "full,” as shown in Fig. 4.
  • the congestion degree calculating unit 224 may generate an object 40B, about the half of whose area is colored in yellow, along with the word "medium,” as shown in Fig. 4.
  • the congestion degree calculating unit 224 may generate an object 40C, a small portion of whose area is colored in blue, along with the word "empty,” as shown in Fig. 4.
  • Fig. 5 is an explanatory diagram showing a specific example of the display image including an object that indicates the degree of congestion.
  • the display control unit 232 may display the object 40 indicating the above described degree of congestion alongside the antenna bars 50 indicating the signal strength on the display unit 236. With such a configuration, the user can identify the degree of congestion of the wireless communications service, in addition to the signal strength of the wireless communications service.
  • Fig. 6 is an explanatory diagram showing a modified example of the object that indicates the degree of congestion.
  • the display control unit 232 may generate objects configured of arrows having different line types, thicknesses, and colors depending on the degree of congestion calculated by the congestion degree calculating unit 224.
  • the congestion degree calculating unit 224 may generate an object 40'A configured of a red arrow of a relatively thin line type with broad missing areas, as shown in Fig. 6.
  • the congestion degree calculating unit 224 may generate an object 40'B configured of a yellow arrow in a line type that is thicker and has less missing areas than that of the object 40'A, as shown in Fig. 6.
  • the congestion degree calculating unit 224 may generate an object 40'C configured of a blue arrow thicker than the object 40'B, as shown in Fig. 6. Such a configuration enables the user to intuitively understand that the lower the degree of congestion, the faster the communication speed.
  • Fig. 7 is a flowchart showing the operation of the communication terminal 20-1 according to the first embodiment. As shown in Fig. 7, the communication terminal 20-1 first receives radio signals transmitted from the base station 30 via the communication unit 216 (S300).
  • the signal strength measurement unit 228 measures and acquires the signal strength of the radio signals received by the communication unit 216 (S310), and the congestion degree calculating unit 224 calculates the degree of traffic congestion of the base station 30 (S320).
  • the display control unit 232 generates a display image including objects corresponding to the signal strength acquired by the signal strength measurement unit 228 and the degree of congestion calculated by the congestion degree calculating unit 224, respectively, and then displays the objects on the display unit 236 (S330).
  • the communication terminal 20-1 displays the objects corresponding to the signal strength and the degree of congestion, respectively, hence the user can identify not only the signal strength of the wireless communications service and the degree of congestion of the wireless communications service.
  • the second embodiment >> Now, the second embodiment of the present disclosure will be described.
  • the communication terminal 20-2 according to the second embodiment of the present disclosure generates, depending on the situation, a display indicating estimation results with regard to the actual content communications, such as estimates of communication speed and communication time, in addition to displays corresponding to multiple indicators relating to the wireless communication environment. From such a display, the user can grasp in advance what the communications would be like if the content communications are actually carried out.
  • Fig. 8 is a functional block diagram showing the communication terminal 20-2 according to the second embodiment of the present disclosure.
  • the communication terminal 20-2 according to the second embodiment includes a communication unit 216, a correlation detection unit 220, a congestion degree calculating unit 224, a signal strength measurement unit 228, a display control unit 234, a display unit 236, a communication speed estimating unit 240, a storage unit 244, and a communication time estimating unit 248.
  • the functions of the communication unit 216, correlation detection unit 220, congestion degree calculating unit 224, and signal strength measurement unit 228 are the same as those described with regard to the first embodiment, and therefore the description thereof will be omitted herein.
  • the communication speed estimating unit 240 estimates the communication speed in the actual content communications, based on the degree of congestion that has been calculated by the congestion degree calculating unit 224. For example, the communication speed estimating unit 240 estimates the communication speed by using a lookup table stored in the storage unit 244. A specific example of the method of estimating the communication speed along with a lookup table will be described below.
  • the communication speed estimating unit 240 can estimate the communication speed in accordance with the lookup table shown in Fig. 9.
  • the communication speed estimating unit 240 refers to the lookup table shown in Fig. 9, and multiplies the ideal bit rate 5 Mbps by the correction factor 0.6, thereby estimating the communication speed to be 3 Mbps. Also, if the degree of congestion is ⁇ 0.3, the communication speed estimating unit 240 refers to the lookup table shown in Fig. 9, and multiplies the ideal bit rate 1 Mbps by the correction factor 0.6, thereby estimating the communication speed to be 0.6 Mbps. If the degrees of congestion can be associated with ideal bit rates and correction factors, as shown in the lookup table of Fig. 9, it is possible to update the lookup table by adjusting the correction factor, but it is also possible to associate the degree of congestion directly with the communication speed.
  • the degree of congestion calculated by the congestion degree calculating unit 224 is not necessarily expressed on a scale of 0 (empty state) to 1 (upper limit congestion state).
  • the degree of congestion k cong calculated by Equation 1 may be expressed on a scale of 0.1 (empty state) to 0.3 (upper limit congestion state).
  • the communication speed estimating unit 240 may normalize the degree of congestion calculated by the congestion degree calculating unit 224 such that the empty state becomes 0 and the upper limit congestion state becomes 1.
  • the degree of congestion calculated by Equation 1 is expressed on a scale of 0.1 (empty state) to 0.3 (upper limit congestion state)
  • the communication speed estimating unit 240 can carry out the normalization in accordance with the following Equation 3.
  • the communication time estimating unit 248 estimates communication speed based on a relationship between the volume of contents obtained through the wireless communications service and the communication speed estimated by the communication speed estimating unit 240. For example, the communication time estimating unit 248 estimates the communication time by dividing the volume of the contents by the communication speed estimated by the communication speed estimating unit 240. In addition, in the case of downloading contents, the communication time amounts to the download time, while the present embodiment is also applicable to the case of uploading contents, and in this case the communication time amounts to the upload time.
  • the display control unit 234 has information about a communications service provider, the communication speed estimated by the communication speed estimating unit 240 and the communication time estimated by the communication time estimating unit 248, etc., displayed on the display unit 236.
  • the display control unit 234 may control each part so that only if the volume of target contents of communications exceeds a set value (for example, 100 kB), the estimation results of the communication time and/or communication speed are displayed as a warning sign.
  • the display control unit 234 may be configured to control the warning sign only if the communication time estimated by the communication time estimating unit 248 exceeds a set value (for example, 10 seconds).
  • the volume of contents or communication time considered preferable for the warning sign can vary, depending on the user, and therefore the above set values of the volume and time can be ones set in advance by the user.
  • Fig. 10 is a flowchart showing the operation of the communication terminal 20-2 in accordance with the second embodiment.
  • Figs. 11 and 12 are explanatory diagrams showing specific examples of the display according to the second embodiment.
  • the communication terminal 20-2 first receives radio signals transmitted from the base station 30 via the communication unit 216 (S300).
  • the signal strength measurement unit 228 measures and acquires the signal strength of the radio signals received by the communication unit 216 (S310), and the congestion degree calculating unit 224 calculates the degree of traffic congestion of the base station 30 (S320).
  • the display control unit 234 generates a display image including objects corresponding to the signal strength acquired by the signal strength measurement unit 228 and the degree of congestion calculated by the congestion degree calculating unit 224, respectively, and displays the image on the display unit 236 (S330).
  • the display control unit 234 may be adapted to display antenna bars 50 indicating the signal strength and an object 40 or 40' indicating the degree of congestion, as shown in Fig. 11(1) or Fig. 12(1).
  • the display control unit 234 determines whether the volume of such contents exceeds a set value of volume (S350). Then, if the volume of the contents exceeds the set value of volume, the communication speed estimating unit 240 estimates the communication speed in the actual content communications, based on a lookup table stored in the storage unit 244, and the display control unit 234 displays the name of the communications service provider 62 and the communication speed on the display unit 236, as shown in Fig. 11(2) or Fig. 12(2).
  • the communication time estimating unit 248 estimates the communication time, based on the relationship between the volume of the contents obtained through the wireless communications service and the communication speed estimated by the communication speed estimating unit 240, and the display control unit 234 has the estimation results of the communication time displayed.
  • the display control unit 234 displays estimated communication time 66 on the display unit 236, as shown in Fig. 11(3) and Fig. 12(3).
  • the display control unit 234 may display the communication speed on the display unit 236, even when it is not in content communications.
  • Fig. 13 is an explanatory diagram showing the configuration of the hardware of the communication terminal 20.
  • the communication terminal 20 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an input device 208, an output device 210, a storage device 211, a drive, an image pickup device 213 and a communication device 215.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the CPU 201 serves functions as an arithmetic processing unit and a control unit to control the overall operation of the communication terminal 20 according to various types of programs.
  • the CPU 201 may also be a microprocessor.
  • the ROM 202 stores programs used by the CPU 201 and operation parameters, etc.
  • the RAM 203 temporarily stores the programs used by the CPU 201 and parameters appropriately changing according to the execution of the programs, etc. They are connected to one another by a host bus including a CPU bus and the like.
  • the input device 208 includes input means for the user to input information, such as a mouse, a keyboard, a touch panel, a button, a microphone, a switch, a lever, etc., an input control circuit to generate input signals based on the input made by the user and output the signals to the CPU 201.
  • the user of the communication terminal 20 can enter various kinds of data into the communication terminal 20 and give instructions of processing operations thereto by operating the input device 208.
  • the output device 210 includes a display device, such as a liquid crystal display device (LCD), an organic light emitting diode (OLED), and lamps and the like.
  • the output device 210 includes an audio output device, such as speakers and headphones.
  • the display device displays captured images or created images, etc.
  • the audio output device converts voice data and outputs it.
  • the storage device 211 is a device for data storage, configured as an example of the storage unit of the communication terminal 20 according to the present embodiment.
  • the storage device 211 may include a storage medium, a recording device for recording data into the storage medium, a readout device for reading out data from the storage medium, a deleting device to delete the data that has been recorded in the storage medium, and the like.
  • This storage device 211 stores various kinds of data and programs executed by the CPU 201.
  • the drive 212 is a reader-writer for the storage medium, which can be built into the communication terminal 20 or externally attached thereto.
  • the drive 212 reads out the information recorded in a removable storage medium 24, such as a mounted magnetic disk, optical disk, magneto-optical disk, or semiconductor memory, etc., and outputs it to the RAM 203.
  • the drive 212 can also write information into the removable storage medium 24.
  • the image pickup device 213 includes an imaging optical system, such as an image taking lens collecting light and a zoom lens, etc., and a signal conversion element, such as a CMOS (Complementary Metal-Oxide Semiconductor) or a CCD (Charge Coupled Device).
  • the imaging optical system collects light emitted from a subject to form an image of the subject in a signal conversion section, and the signal conversion element converts the formed subject image to electrical image signals.
  • the communication device 215 is, for example, a communication interface including a device for communications which enables access to a network 12.
  • the communication device 215 may be a communication device compatible with either a wireless LAN (Local Area Network) or LTE (Long Term Evolution), or otherwise may be a wired communication device performing communications via wires.
  • a wireless LAN Local Area Network
  • LTE Long Term Evolution
  • the network 12 is a wireless or wired transmission line for information transmitted from a device connected to the network 12.
  • the network 12 may include a public network, such as the Internet, a telephone network, a satellite communication network, and other various types of local area networks (LANs) including Ethernet (registered trademark) and wide area networks (WANs).
  • LANs local area networks
  • WANs wide area networks
  • the network 12 may also include a dedicated line network, such as an IP VPN (Internet Protocol Virtual Private Network).
  • IP VPN Internet Protocol Virtual Private Network
  • the communication terminal 20-1 measures and acquires the signal strength of the wireless communications service as a first indicator of the wireless communication environment of the same wireless communications service, and acquires the degree of congestion of the wireless communications service as a second indicator. Then, the communication terminal 20-1 displays objects corresponding to the signal strength and the degree of congestion, respectively, which enables the user to identify not only the signal strength of the wireless communications service but also the degree of congestion of the wireless communications service.
  • the communication terminal 20-2 according to the second embodiment of the present disclosure generates a display indicating estimation results of actual communications, such as estimates of communication speed and communication time, depending on the situation, in addition to displays corresponding to multiple indicators relating to the wireless communication environment. From such a display, the user can understand in advance what the communications would be like if the content communications are actually carried out.
  • each step in the processing of the communication terminal 20 of the present disclosure is not necessarily processed in the time series corresponding to the order shown in the flowcharts.
  • each step in the processing of the communication terminal 20 may be processed in a different order than the order as described in the flowcharts, or may be executed in parallel.
  • a display control device comprising: an indicator acquisition unit for acquiring different indicators with regard to a wireless communication environment of the same wireless communications service; and a display control unit for generating a display corresponding to each of the different indicators.
  • the indicator acquisition unit comprises: a measurement unit for measuring the signal strength of the wireless communications service as a first indicator; and a congestion degree calculating unit for calculating a degree of congestion of the wireless communications service as a second indicator.
  • the display control unit generates a display indicating the signal strength as a display corresponding to the first indicator, and generates a display indicating the degree of congestion as a display corresponding to the second indicator.
  • the display control device further comprising a communication speed estimating unit for estimating communication speed based on the degree of congestion calculated by the congestion degree calculating unit, wherein the display control unit generates a display indicating the estimated communication speed estimated by the communication speed estimating unit.
  • the display control device further comprising a communication time estimating unit for estimating communication time from a relationship between the volume of communication data acquired via the wireless communications service and the communication speed estimated by the communication speed estimating unit, wherein the display control unit further generates a display indicating the communication time estimated by the communication time estimation unit.
  • the display control device according to any one of (2) to (7), further comprising a correlation detection unit for detecting correlation between radio signals received from a base station which transmits frequency-spread radio signals by scrambling codes and each of a plurality of scrambling codes, wherein the congestion degree calculating unit calculates the degree of congestion from a relationship between the largest one of the correlations detected by the correlation detection unit and another correlation.
  • the other correlation is a value obtained by dividing the radio signals received from a plurality of base stations by a diffusion rate.
  • a display control device comprising: acquiring different indicators with regard to a wireless communication environment of the same wireless communications service; and generating a display corresponding to each of the different indicators.
  • a method comprising: displaying an indicator on a display of a communication terminal, the indicator indicating information regarding congestion of a wireless communication service.
  • the method of (A1) wherein the information regarding congestion of the wireless communication service comprises information regarding congestion in a frequency band of the wireless communication service.
  • the method of (A2) wherein the information regarding congestion in the frequency band of the wireless communication service is correlated with an actual or estimated data communication rate between the communication terminal and a base station of the wireless communication service.
  • (A4) The method of (A2), further comprising: detecting, with the communication terminal, one or more radio signals in the frequency band of a wireless communication service; and calculating, with the communication terminal, a degree or level of the congestion of the wireless communication service based on data extracted from the detected signals, wherein the information regarding the congestion of the wireless communication service comprises the level or degree of congestion.
  • (A5) The method of (A1), wherein: displaying the indicator comprises displaying an image, and the information regarding the congestion of the wireless communication service comprises a level or degree of congestion.
  • (A6) The method of (A5), wherein: the image comprises an area with a shaded portion, and a property of the shaded portion indicates the level or degree of congestion.
  • (A7) The method of (A6), wherein the property of the shaded portion that indicates the level or degree of congestion comprises a color of the shaded portion, a percentage of the area occupied by the shaded portion, and/or a ratio between a dimension of the shaded portion and a corresponding dimension of the area.
  • (A8) The method of (A5), wherein: the image comprises an arrow, and a property of the arrow indicates the level or degree of congestion.
  • (A9) The method of (A8), wherein the property of the arrow that indicates the level or degree of congestion comprises a color of the arrow, a thickness of the arrow, a line type of the arrow, a length of the arrow, and/or a segmentation of the arrow.
  • (A10) The method of (A5), wherein a property of the displayed image is selected based on a comparison of the level and/or degree of congestion to one or more threshold values.
  • (A11) The method of (A5), further comprising displaying, on the display of the communication terminal, an indication of an actual or estimated quality of communication between the communication terminal and a base station of the wireless communication service, wherein the quality of communication comprises a throughput, rate, and/or duration of the communication.
  • a method comprising: detecting, with a communication terminal, one or more radio signals in a frequency band of a wireless communication service; analyzing the one or more radio signals, with the communication terminal, to obtain values of attributes of radio-signal traffic in the frequency band of the wireless communication service; and while displaying a first indicator of a first value of a first of the attributes of the radio-signal traffic in the frequency band of the wireless communication service, displaying a second indicator of a second value of a second of the attributes of the radio-signal traffic in the frequency and of the wireless communication service, wherein the attributes relate to use of the frequency band of the wireless communication service by one or more wireless communication devices, and wherein the first and second indicators are displayed on a display of the communication terminal.
  • the first attribute of the radio-signal traffic relates to radio-frequency energy in the frequency band of the wireless communication service; and the first indicator indicates an amount, level, and/or degree of the radio-frequency energy.
  • (A17) The method of (A15), wherein: the second attribute of the radio-signal traffic relates to congestion; and the second indicator indicates a level and/or degree of the congestion.
  • (A18) The method of (A17), wherein: the image comprises an area with a shaded portion, and a property of the shaded portion indicates the level or degree of congestion.
  • (A19) The method of (A17), wherein: the image comprises an arrow, and a property of the arrow indicates the level or degree of congestion.
  • (A20) The method of (A17), wherein a property of the displayed image is selected based on a comparison of the level and/or degree of congestion to one or more threshold values.
  • A21 The method of (A17), further comprising displaying, on the display of the communication terminal, an indication of an actual or estimated quality of communication between the communication terminal and the base station, wherein the quality of communication comprises a throughput, rate, and/or duration of the communication.
  • a computer-readable storage medium storing instructions which, when executed, cause a communication terminal to perform a method comprising: displaying an indicator on a display of the communication terminal, the indicator indicating information regarding congestion of a wireless communication service.
  • the information regarding congestion of the wireless communication service comprises information regarding congestion in a frequency band of the wireless communication service.
  • (A24) The method of (A23), wherein the information regarding congestion in the frequency band of the wireless communication service is correlated with an actual or estimated data communication rate between the communication terminal and a base station of the wireless communication service.
  • (A25) The method of (A23), further comprising: detecting one or more radio signals in the frequency band of a wireless communication service; and calculating a degree or level of the congestion of the wireless communication service based on data extracted from the detected signals, wherein the information regarding the congestion of the wireless communication service comprises the level or degree of congestion.
  • (A26) The method of (A22), wherein displaying the indicator comprises displaying an image, and the information regarding the congestion of the wireless communication service comprises a level or degree of congestion.
  • a communication terminal comprising: a display; a processor; and a memory operatively coupled to the processor, the memory storing instructions which, when executed by the processor, cause the communication terminal to perform a method comprising: displaying an indicator on the display, the indicator indicating information regarding congestion of a wireless communication service.
  • the device of (A31), wherein the information regarding congestion of the wireless communication service comprises information regarding congestion in a frequency band of the wireless communication service.
  • the device of (A32), wherein the information regarding congestion in the frequency band of the wireless communication service is correlated with an actual or estimated data communication rate between the communication terminal and a base station of the wireless communication service.
  • A38 The device of (A35), wherein a property of the displayed image is selected based on a comparison of the level and/or degree of congestion to one or more threshold values.
  • the method further comprises displaying an indication of an actual or estimated quality of communication between the communication terminal and a base station of the wireless communication service, wherein the quality of communication comprises a throughput, rate, and/or duration of the communication.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

La présente invention concerne un dispositif de commande d'affichage, un procédé et un programme. Deux indicateurs ou plus peuvent être affichés sur un affichage d'un terminal de communication. Chacun desdits indicateurs peut indiquer des informations concernant un service de communication sans fil. Les informations concernant le service de communication sans fil peuvent être déduites de signaux d'une pluralité de dispositifs de communication sans fil. En supplément ou en variante, les informations concernant les services de communication sans fil peuvent concerner une utilisation courante du service de communication sans fil par deux dispositifs de communication sans fil ou plus.
PCT/JP2012/007835 2011-12-13 2012-12-06 Procédé, support de stockage lisible par ordinateur et terminal de communication Ceased WO2013088685A1 (fr)

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JP2011272176A JP2013125997A (ja) 2011-12-13 2011-12-13 表示制御装置、表示制御方法およびプログラム
JP2011-272176 2011-12-13

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JP6601815B2 (ja) * 2015-05-15 2019-11-06 日本無線株式会社 衛星通信可否予測装置および衛星通信可否予測プログラム
JP6799989B2 (ja) * 2016-10-19 2020-12-16 Kddi株式会社 通信端末装置、情報配信システム及び通信端末プログラム
JP6548272B2 (ja) * 2017-02-08 2019-07-24 Ｎｅｃプラットフォームズ株式会社 管理サーバ、無線ｌａｎ負荷分散システム、方法及びプログラム
CN109144826B (zh) * 2018-08-21 2021-11-09 北京小米移动软件有限公司 Wifi信号指示方法、装置、电子设备和存储介质

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