JPWO2015198566A1 - Wireless communication apparatus, wireless communication method, and recording medium for recording computer program - Google Patents

Abstract

The present invention provides a wireless communication apparatus that more efficiently communicates data according to changes in the degree of congestion on a line. The wireless communication apparatus includes a first measurement unit that measures a first index, which is a value representing an execution state of communication on a communication line, that can be acquired without performing data communication related to data to be communicated, and data communication A second measurement unit that measures a second index, which is a value representing the execution state of communication in the communication line, that can be acquired during the execution of the first, and a first that represents the congestion degree of the line based on the first index The congestion degree is calculated, and based on the second index, a congestion degree calculation unit that calculates a second congestion degree indicating the congestion degree of the line, and the start or restart of data communication based on the first congestion degree A determination unit that determines and interrupts data communication based on the second degree of congestion and outputs determination result information representing the determination result; and a data communication control unit that controls data communication based on the determination result information With.

Description

  The present invention relates to a wireless communication apparatus and a wireless communication method.

  In recent years, various types of data communication such as browsing of websites, transmission / reception of streaming video, transmission / reception of electronic mail, and transmission / reception of electronic files have been performed using wireless communication terminals, thereby increasing data traffic in wireless communication networks. doing. Therefore, it is required to efficiently communicate data to the wireless communication terminal. In particular, wireless communication terminals are required to transmit and receive non-real time data that does not require real time when the communication network is not congested.

  As a related technique with respect to the above, Patent Document 1 discloses a technique of a wireless terminal that attempts clearance communication for each waiting period. The wireless terminal described in Patent Document 1 controls whether to continue communication or to interrupt until the next cycle according to the congestion degree of communication for each fixed waiting period. Data communication can be performed in a quiet time zone with low congestion.

  Patent Document 2 discloses a technique of a wireless terminal that holds transmission on the basis of broadcast information notified from a base station regarding congestion of a line when transmission data to the base station is generated. The wireless terminal described in Patent Document 2 reduces useless signaling from the wireless terminal to the base station when the line is congested by waiting for transmission of the held data until receiving release information from the base station. Can do.

  Patent Document 3 discloses a technique related to a mobile terminal in a wireless communication system in which a data communication speed can be predicted based on communication quality calculated from a measured value of radio field intensity. If the mobile terminal described in Patent Document 3 cannot perform high-speed communication based on the communication quality value and the data transmission rate, the mobile terminal suspends the start of download and interrupts the download being executed. The base station described in Patent Document 3 stores data downloaded from a server in a buffer while the mobile terminal suspends download, and transmits the buffered data to the mobile terminal after resuming the download. be able to. Thereby, this portable terminal can select the time when high-speed communication is possible, and can download data without waste.

JP 2012-165107 A International Publication No. 2014/016861 JP 2004-297479 A

  However, after the communication is interrupted, the wireless terminal disclosed in Patent Document 1, for example, when the communication congestion level calculated by the data communication amount per unit time or the like decreases, the next time until the waiting time elapses. Communication cannot be started. For this reason, this wireless terminal has a problem that data communication cannot be performed efficiently in a situation in which the degree of congestion of communication varies in a cycle shorter than the waiting time.

  Further, the wireless terminal disclosed in Patent Document 2 has no means for interrupting data communication once started. Therefore, this wireless terminal has a problem that it cannot cope with a case where the line is congested during data communication. That is, this wireless terminal has a problem in followability to changes in the degree of congestion.

  The portable terminal disclosed in Patent Document 3 is intended to perform high-speed download without waste. Therefore, as long as the mobile terminal can download at high speed, the mobile terminal does not interrupt data communication even when the line is congested. Therefore, there is a problem in that data traffic in the wireless communication network is increased during data congestion. Furthermore, when there are a plurality of mobile communication terminals under the base station, there is a possibility that an individual terminal may start a vibration phenomenon that repeats communication start, restart, and interruption while affecting each other. That is, this portable terminal is not suitable for the purpose of transmitting / receiving non-real time data that does not require real time property when the communication network is not congested.

  One object of the present invention is to provide a wireless communication apparatus and the like that can communicate data more efficiently according to changes in the degree of congestion of a line.

  In order to achieve the above object, a wireless communication apparatus according to one embodiment of the present invention includes the following configuration.

That is, a wireless communication device according to one embodiment of the present invention is provided.
First measurement that can be obtained without performing data communication related to data to be communicated, and that measures a first index that is a value representing an execution state of communication on a communication line, and outputs the measured first index Means,
Second measurement means for measuring a second index, which is a value representing a communication execution state in the communication line, which can be acquired during the execution of the data communication, and outputting the measured second index;
Based on the first index, a first congestion level representing the congestion level of the line is calculated, and based on the second index, a second congestion level representing the congestion level of the line is calculated, Congestion degree calculating means for outputting the first congestion degree and the second congestion degree;
Based on the first congestion level, the start or restart of the data communication is determined, based on the second congestion level, the interruption of the data communication is determined, and determination result information representing the determination result is output. Judgment means,
A data communication control unit that controls the data communication based on the determination result information.

In addition, a wireless communication method according to an aspect of the present invention that achieves the above object is provided by an information processing device.
When data communication related to the communication target data is not performed,
Measuring a first index, which is a value representing an execution state of communication in a communication line, which can be obtained without performing the data communication;
Based on the first index, a first congestion level representing the congestion level of the line is calculated,
Starting or resuming the data communication based on the first congestion degree;
During execution of the data communication,
Measuring a second index which is a value representing an execution state of communication in the communication line, which can be acquired during execution of the data communication;
Based on the second index, a second congestion level representing the congestion level of the line is calculated,
The data communication is interrupted based on the second congestion level.

  The object is also achieved by a wireless communication device having each of the above-described configurations and a corresponding method by a computer program realized by a computer, and a computer-readable storage medium storing the computer program. Is done.

  The present invention has an effect that data can be efficiently communicated.

It is a block diagram which shows the structure of the radio | wireless communication apparatus 1 which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the radio | wireless communications system which concerns on the 2nd Embodiment of this invention. 6 is a flowchart illustrating an operation performed by the wireless communication device 200 in the second embodiment. It is a block diagram which shows the communication environment in the radio | wireless communications system which concerns on the Example of 2nd Embodiment. It is a graph which shows the specific example of the data communication in the Example of 2nd Embodiment. It is a figure which illustrates the structure of each computer (information processing apparatus) applicable to each embodiment of this invention, and the radio | wireless communications system which concerns on the modification.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a block diagram showing a configuration of a wireless communication apparatus 1 according to the first embodiment of the present invention. Referring to FIG. 1, the wireless communication device 1 according to the present embodiment includes a first measurement unit 2, a second measurement unit 3, a congestion degree calculation unit 4, a determination unit 5, and a communication control unit 6.

  The wireless communication device 1 can communicate with a server or the like (not shown) via a communication network (hereinafter also referred to as “communication network”) 1000.

  The wireless communication device 1 may be configured by a general information processing device (computer) that operates under the control of a computer program (software program) that is executed using a CPU (Central Processing Unit: not shown). . Alternatively, each unit of the wireless communication device 1 may be configured by a dedicated hardware device or a logic circuit. A hardware configuration example in which the wireless communication device 1 is realized by a computer will be described later with reference to FIG.

  The 1st measurement part 2 can measure the 1st parameter | index which can be acquired, without performing the data communication which concerns on the data which are communication objects. The first index is a value representing an execution state of communication in a communication line (hereinafter simply referred to as “line”) connected to the communication network 1000. The first index may include a plurality of types of measurement values. For example, the first measurement unit 2 may measure values indicating a plurality of radio conditions related to the line. The first measuring unit 2 outputs the measured first index to the congestion degree calculating unit 4.

  The second measuring unit 3 can measure a second index that can be acquired during execution of data communication with respect to data to be communicated. The second index is a value representing the communication execution state on the line. The second index may include a plurality of types of measurement values. For example, the second measuring unit 3 may measure the throughput in data communication. The second measuring unit 3 outputs the measured second index to the congestion degree calculating unit 4.

  Based on the first index received from the first measurement unit 2, the congestion level calculation unit 4 calculates a first congestion level that represents the congestion level of the line. Further, the congestion degree calculation unit 4 calculates a second congestion degree that represents the congestion degree of the line based on the second index received from the second measurement unit 3. The congestion level calculation unit 4 outputs the calculated first or second congestion level to the determination unit 5.

The determination unit 5 determines the start or restart of data communication based on the first congestion degree calculated for the first index. Further, the determination unit 5 determines interruption of data communication based on the second congestion degree calculated for the second index. Specifically, when the first or second congestion level is low, the determination unit 5 sets a determination result to execute (start or restart) data communication. The determination unit 5 determines that the first or second congestion degree is “low” when the first or second congestion degree indicates that the congestion is not less than a predetermined threshold. In addition, when the first or second congestion degree is high, the determination unit 5 determines that the data communication is not performed (waiting for start or interrupted) as a determination result. The determination unit 5 determines that the first or second congestion degree is “high” when the first or second congestion degree indicates that the congestion is greater than a predetermined threshold. The determination unit 5 outputs determination result information representing the determination result to the communication control unit 6.

  The communication control unit 6 can control data communication based on the determination result information received from the determination unit 5. That is, after receiving the determination result information indicating the start of data communication from the determination unit 5, the communication control unit 6 starts data communication with the communication network 1000. Further, when the communication control unit 6 receives the determination result information indicating the interruption of the data communication from the determination unit 5, the communication control unit 6 interrupts the data communication being executed. The communication control unit 6 resumes the interrupted data communication after receiving the determination result information indicating the resumption of the data communication from the determination unit 5.

  As described above, according to the present embodiment, data communication can be started, interrupted, and restarted in accordance with changes in the degree of congestion of the line including during execution of data communication. As a result, according to the present embodiment, due to concentration of data communication by off-peak communication in which the execution timing of some data communication at the time of line congestion is shifted (shifting the peak load) when the line is free. It can also be expected to reduce the congestion of the line.

  As described above, in this embodiment, the target data (for example, non-real-time data communication) is used without interrupting other data communication (for example, real-time data communication) using the same wireless communication network as much as possible. ) Can be communicated as efficiently as possible. Therefore, this embodiment can be applied, for example, when non-real-time communication such as downloading of moving image content or periodic information collection from a plurality of terminals is realized using network resources such as radio. In other words, the present embodiment can be applied to the use of realizing the above-described non-real-time communication so as not to interrupt communication that requires real-time property such as a smartphone or a mobile phone. The present embodiment can also be applied to a case where an inexpensive communication fee is provided in exchange for real-time performance for a user who does not require real-time performance.

  This is because the determination unit 5 determines the start, interruption, and restart of data communication so that data communication is performed when the line is not congested based on the degree of congestion of the line. In particular, the congestion level calculation unit 4 calculates the second congestion level of the line based on the second index measured by the second measurement unit 3 even during data communication. This is because the determination unit 5 determines interruption of data communication according to the second congestion level even during data communication.

  In addition, the present embodiment also has an effect that the wireless communication device 1 according to the present embodiment does not perform useless communication when the line is congested. That is, the wireless communication device 1 according to the present embodiment attempts data communication with a communication destination server, a base station of the communication network 1000, and the like even though the line is congested, thereby further congesting the line. There is nothing.

  The reason is that the determination unit 5 determines the start and resumption of data communication based on the first index measured by the first measurement unit 2 and acquired without performing data communication.

  In addition, this embodiment has an effect that no special function is required in the radio base station or the server.

  The reason is that the wireless communication apparatus 1 can actively start, interrupt, and resume data communication based on the congestion degree calculated by itself.

  In addition, the following can be considered as a modification of this embodiment.

  For example, when determining the interruption of the data communication, the determination unit 5 may determine the interruption in consideration of the first congestion degree in addition to the second congestion degree. In this modification, the first measurement unit 2 continues to measure the first index and output the first index to the congestion degree calculation unit 4 even during the execution of data communication. Then, when calculating the second congestion level, the congestion level calculation unit 4 also calculates the first congestion level, and the first congestion level is also sent to the determination unit 5 together with the second congestion level. Output. Based on the first and second congestion levels calculated in this way, the determination unit 5 determines interruption of data communication being executed. For example, the determination unit 5 may determine to interrupt the data communication when the congestion level of the line is high in either one of the first and second congestion levels. In the determination of interruption in this modification, the determination unit 5 may use a determination criterion different from a determination criterion (for example, a threshold value) for the first congestion level at the start or restart of data communication.

  As described above, the present modification has an effect that it is possible to take a more accurate countermeasure against a change in the degree of congestion. This modification can be expected to be highly effective, for example, when the accuracy of the degree of congestion is not high with only the second index.

  The reason is that the determination unit 5 can determine interruption of data communication based on more determination materials such as the first and second congestion levels.

<Second Embodiment>
(Description of configuration)
Next, a second embodiment based on the above-described first embodiment will be described. The following description will focus on the characteristic parts according to the second embodiment, and a detailed description overlapping with the components of the second embodiment having the same configuration as that of the first embodiment will be omitted.

  First, the configuration of this embodiment will be described below with reference to FIG. FIG. 2 is a block diagram showing a configuration of a radio communication system according to the second embodiment of the present invention.

  The present embodiment is a specific example in which the present invention is applied to a wireless communication system in which the wireless communication apparatus 200 performs data communication with the server 100. In the present embodiment, the first index in the first embodiment is information relating to the communication quality of the wireless channel to which the wireless communication apparatus is connected (hereinafter referred to as “radio status information”). Further, the second index in the first embodiment is the throughput of data communication between the server 100 and the wireless communication device 200.

  Referring to FIG. 2, the wireless communication system according to the present embodiment includes a server 100 and a wireless communication device 200. The server 100 and the wireless communication device 200 can communicate with each other via a communication network 300 which is a communication network such as the Internet or a local area network (LAN). However, the wireless communication device 200 is connected to the communication network 300 via a wireless line via a base station (not shown). For example, the server 100 connects to the communication network 300 via a wired line. The server 100 may be connected to the communication network 300 via a wireless line.

  The server 100 and the wireless communication device 200 are configured by a general information processing device (computer) that operates under the control of a computer program (software program) executed using a CPU (Central Processing Unit: not shown). May be. Or each part of the server 100 and the radio | wireless communication apparatus 200 may be comprised by a dedicated hardware device or a logic circuit. A hardware configuration example in which the server 100 and the wireless communication apparatus 200 are realized by a computer will be described later with reference to FIG.

  The server 100 has a server-side data communication unit 110.

  The server-side data communication unit 110 can perform data communication with the wireless communication device 200 via the communication network 300.

  The wireless communication device 200 includes a terminal side control unit 210 and a terminal side data communication unit 220.

  The terminal-side control unit 210 includes a wireless measurement unit 211, a throughput measurement unit 212, a congestion degree calculation unit 213, and a determination unit 214.

  The wireless measurement unit 211 is based on the first measurement unit 2 in the first embodiment. The wireless measurement unit 211 can measure information (communication status information) related to communication quality. Information related to communication quality includes, for example, Received Signal Strength Indicator (RSSI), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), RSRQ (Reference Signal Received Quality, Reference Signal Quality) Signal-to-Interference plus Noise-Ratio, signal-to-interference plus noise ratio). This wireless status information corresponds to the first index that can be acquired without performing data communication related to communication target data in the first embodiment. The wireless measurement unit 211 outputs information on each measured wireless state to the congestion degree calculation unit 213.

  The throughput measuring unit 212 is based on the second measuring unit 3 in the first embodiment. The throughput measuring unit 212 can measure the communication throughput of data communication with the server 100 (hereinafter simply referred to as “throughput”). This throughput corresponds to the second index that can be acquired during the execution of data communication for the data to be communicated in the first embodiment. The throughput measuring unit 212 outputs throughput information representing the measured throughput to the congestion degree calculating unit 213. If the first index and the second index are information that is considered to reflect the degree of congestion of the wireless line to which the wireless communication apparatus 200 is connected, the first index and the second index include the state of the part other than the wireless line such as this throughput. It may be information.

  The congestion degree calculation unit 213 is based on the congestion degree calculation unit 4 in the first embodiment. The congestion degree calculation unit 213 calculates the congestion degree of the line used for data communication with the server 100. In the present embodiment, the congestion degree calculation unit 213 is based on the information (first index) of each wireless status received from the wireless measurement unit 211 while the wireless communication device 200 is not performing data communication with the server 100. A first congestion degree is calculated. Further, the congestion degree calculation unit 213 calculates the second congestion degree based on the throughput information received from the throughput measurement unit 212 while the wireless communication apparatus 200 performs data communication with the server 100.

  In the present embodiment, the congestion degree calculation unit 213 calculates the first and second congestion degrees in a predetermined cycle (for example, every 5 seconds) as an example. That is, the wireless measurement unit 211 and the throughput measurement unit 212 output measurement values (first or second index) for the congestion degree calculation unit 213 in a predetermined cycle or a shorter cycle. Note that the congestion level calculation unit 213 may calculate the second congestion level at a timing different from the calculation of the first congestion level. The congestion level calculation unit 213 outputs the calculated first and second congestion levels to the determination unit 214.

  The determination unit 214 is based on the determination unit 5 in the first embodiment. The determination unit 214 determines the start or restart of data communication based on the first congestion level received from the congestion level calculation unit 213 (the congestion level based on the wireless status information). Further, the determination unit 214 determines the interruption of data communication based on the second congestion level received from the congestion level calculation unit 213 (the congestion level based on the throughput information). The determination unit 214 outputs determination result information representing the determination result to the terminal-side data communication unit 220.

  The terminal-side data communication unit 220 is based on the communication control unit 6 in the first embodiment. The terminal-side data communication unit 220 can perform data communication with the server 100 via the communication network 300. Further, the terminal-side data communication unit 220 can control data communication based on the determination result information received from the determination unit 214.

  Note that the present invention described by taking this embodiment as an example is not limited to the configuration of the illustrated wireless communication system. That is, there may be two or more servers 100 and wireless communication devices 200 included in the wireless communication system.

(Description of operation)
Next, the operation of the present embodiment having the above-described configuration will be described in detail with reference to FIG. FIG. 3 is a flowchart illustrating an operation performed by the wireless communication apparatus 200 in the second embodiment.

  First, in the wireless communication device 200, before starting data communication with the server 100, the wireless measurement unit 211 measures the wireless state (first index) (step S10). Specifically, the radio measurement unit 211 measures RSSI (received signal strength), RSRP (reference signal received power), RSRQ (reference signal received quality), and SINR (signal to interference plus noise ratio) as radio conditions. To do. The wireless measurement unit 211 outputs the information on the wireless status to the congestion degree calculation unit 213 as a first index.

  Next, the congestion level calculation unit 213 calculates the congestion level (first congestion level) of the line used for data communication with the server 100 based on the wireless status information measured by the wireless measurement unit 211 (step 1). S11). Specifically, the congestion degree calculation unit 213 may calculate the first congestion degree NC1 by the following Expression 1.

NC1 = ((RSSI / (2 * RSRP * 50))-(6 / SINR) -1) * 1/5 --- (1)
Alternatively, the congestion degree calculation unit 213 may calculate the first congestion degree NC1 according to the following expression 2.

NC1 = (1 / (2 * RSRQ)-(6 / SINR) -1) * 1/5 --- (2)
The congestion degree calculation unit 213 may calculate the first congestion degree NC1 as a moving average value. Alternatively, the congestion degree calculation unit 213 may calculate the first congestion degree NC1 as an exponential smooth value.

  The congestion level NC1 calculated by the above-described formula 1 or formula 2 is also called a radio resource utilization rate of a radio base station (not shown) to which the radio communication apparatus 200 is connected.

  The congestion degree calculation unit 213 outputs the calculated value of the first congestion degree NC1 to the determination unit 214.

  Next, the determination unit 214 determines whether or not the first congestion level NC1 received from the congestion level calculation unit 213 is equal to or less than a predetermined threshold value (step S12).

  When the first congestion level NC1 exceeds the threshold (NO in step S12), the determination unit 214 determines that the line congestion level is high, and waits for the start of data communication with the server 100 as a result. To decide. That is, the determination unit 214 sets the next process to be performed as the first step S10.

  On the other hand, when the first congestion level NC1 is less than or equal to the threshold (YES in step S12), the determination unit 214 determines that the line congestion level is low, and as a result, starts data communication with the server 100. Decide what to do. Then, the determination unit 214 outputs determination result information indicating the start of data communication to the terminal-side data communication unit 220. The terminal-side data communication unit 220 starts data communication with the server 100 based on the determination result information received from the determination unit 214 (step S13). In the server 100, the server-side data communication unit 110 transmits / receives data to / from the terminal-side data communication unit 220.

  After the start of data communication, the throughput measurement unit 212 measures the data communication throughput (second index) between the terminal-side data communication unit 220 and the server-side data communication unit 110 (step S14). Specifically, the throughput measuring unit 212 may calculate the throughput r by the following Expression 3.

r = B / t --- (3)
In Equation 3, B is the size of transferred data (in bits). T is a predetermined time (in seconds). The throughput measuring unit 212 may calculate the throughput r as a moving average value. Alternatively, the throughput measuring unit 212 may calculate the throughput r as an exponential smooth value.

  The throughput measuring unit 212 outputs information indicating the calculated throughput r to the congestion degree calculating unit 213 as a second index.

  Next, the congestion degree calculation unit 213 determines whether there is next communication data (step S15). Note that the congestion degree calculation unit 213 performs the operation of step S15 in a predetermined cycle as described above in the description of the configuration.

  When there is no next communication data (NO in step S15), the congestion degree calculation unit 213 determines that the data communication is finished, and passes control to the terminal-side data communication unit 220 as it is. The terminal-side data communication unit 220 ends the data communication.

  When there is next communication data (YES in step S15), the congestion degree calculation unit 213 determines the line congestion degree (second congestion) based on the throughput information (second index) received from the throughput measurement unit 212. Degree) is calculated (step S16). Here, the congestion level calculation unit 213 outputs the value of the throughput r as it is to the determination unit 214 as the second congestion level NC2.

  Next, the determination unit 214 determines whether or not the second congestion level NC2 received from the congestion level calculation unit 213 is greater than or equal to a predetermined threshold (step S17). In the present embodiment, the threshold value in step S17 is different from the threshold value in step S12.

  If the second congestion level NC2 is greater than or equal to the threshold (YES in step S17), the determination unit 214 determines that the line congestion level is low, and as a result, continues data communication with the server 100. To decide. That is, the determination unit 214 sets the next process to be performed as step S14 (measurement of throughput).

  On the other hand, when the second congestion level NC2 is less than the threshold (NO in step S17), the determination unit 214 determines that the line congestion level is high, and as a result, interrupts data communication with the server 100. Decide what to do. Then, the determination unit 214 outputs determination result information indicating interruption of data communication to the terminal-side data communication unit 220. The terminal-side data communication unit 220 interrupts data communication with the server 100 based on the determination result information received from the determination unit 214 (step S20).

  Thereafter, the wireless communication device 200 returns to the process of step S10. That is, the wireless communication device 200 suspends data communication with the server 100 until the first congestion degree is equal to or less than the threshold based on the wireless state (first index) measured by the wireless measurement unit 211.

  When the first congestion level is equal to or lower than the threshold, the wireless communication device 200 resumes (starts) data communication with the server 100. That is, the determination unit 214 resumes the interrupted data communication by outputting determination result information indicating the start of data communication to the terminal-side data communication unit 220.

  As described above, according to the present embodiment, it is possible to start, interrupt, and resume data communication in accordance with a change in the degree of congestion of a line.

(Explanation of effect)
As described above, in the present embodiment, as in the first embodiment, the target data (transmission / reception data to / from the server 100) can be as much as possible without blocking other data communication using the same wireless communication network as much as possible. There is an effect that communication can be performed efficiently.

  The reason is that the determination unit 214 performs data communication when the line is not congested according to the first degree of congestion based on the wireless situation (first index) measured by the wireless measurement unit 211. This is because the start (resumption) of data communication is determined. In addition, during data communication, the determination unit 214 determines interruption of data communication according to the second congestion degree based on the throughput (second index) measured by the throughput measurement unit 212.

  In addition, as in the first embodiment, this embodiment also has an effect that the wireless communication apparatus 200 does not perform useless communication when a line is congested.

  The reason is that the determination unit 214 determines the start and resumption of data communication based on the wireless state (first index) that can be acquired without performing data communication measured by the wireless measurement unit 211.

  In addition, as in the first embodiment, this embodiment also has an effect that no special function is required in the radio base station (not shown) or the server 100.

  The reason is that the wireless communication apparatus 200 can actively start, interrupt, and resume data communication based on the congestion degree calculated by itself.

(Description of Examples)
Below, the Example which applied this embodiment to the radio | wireless communications system shown in FIG. 4 is described. FIG. 4 is a configuration diagram illustrating a communication environment in a wireless communication system according to an example of the second embodiment.

  First, the configuration of the present embodiment will be described below with reference to FIG.

  The wireless communication system according to the present embodiment includes two terminals 500 and 501 and a server 600.

  Terminals 500 and 501 can communicate with server 600 via LTE communication network 1001 which is a wireless network of a communication standard called LTE (Long Term Evolution) and ISP (Internet Service Provider) communication network 1002, respectively. . Terminals 500 and 501 are wirelessly connected to the LTE communication network 1001 via the same base station (not shown).

  A hardware configuration example in which the terminals 500 and 501 and the server 600 are realized by a computer will be described later with reference to FIG.

  The terminal (wireless communication apparatus) 500 includes functions of each unit of the wireless communication apparatus 200 according to the present embodiment. A terminal (general terminal) 501 is a general terminal device capable of wireless connection. The server 600 corresponds to the server 100 (FIG. 2) in the present embodiment.

  In the present embodiment using the wireless communication system having the above configuration, non-real-time communication continuously performed from the terminal (wireless communication apparatus) 500 to the server 600 and intermittent connection from the terminal 501 to the server 600. Real-time communication that occurs automatically.

  FIG. 5 is a graph showing a specific example of data communication in the example of the second embodiment. The vertical axis on the left of the graph in FIG. 5 indicates communication throughput [Mbps] (second congestion degree). The vertical axis on the right is the radio resource utilization rate, which is the congestion level (first congestion level) of the line. The wireless resource utilization rate in this graph represents the degree of utilization of communication resources allocated to terminals connected to the wireless communication network as a value between 0.0 and 1.0. The horizontal axis represents time.

  The solid line shown as “real time” in the legend in FIG. 5 represents the throughput value of traffic required for real time from the general terminal 501 to the server 600. A broken line indicated as “non-real time” represents a throughput value of traffic from the terminal (wireless communication apparatus) 500 to the server 600 that does not require real time property. Further, the diamond-shaped point indicated as “radio resource utilization rate” represents the radio resource utilization rate in the radio channel connected to the LTE communication network.

  In this embodiment, the operator generated communication as follows. First, the non-real-time communication by the terminal 500 was started first. And while the non-real-time communication is continuing, the real-time communication by the terminal 501 is set to occur intermittently.

  In addition, in the determination unit 214 of the terminal (wireless communication apparatus) 500, the threshold for the wireless resource utilization rate (first congestion level) is set to 0.5. In the determination unit 214, the threshold for the throughput (second congestion level) is set to 13 Mbps.

  From the results shown in FIG. 5, it can be seen that when real-time communication occurs, non-real-time communication is operating. In addition, it can be seen that when the real-time communication is completed, the non-real-time communication is resumed.

  A general terminal 501 simply performs transmission / reception as needed for communication regardless of the degree of congestion of the line. Therefore, it is considered that such an operation occurs due to the control of the terminal 500. According to the present embodiment, it can be seen that the terminal 500 which is the wireless communication apparatus 200 has an effect of being able to efficiently perform non-real-time communication while preventing real-time communication as much as possible.

(Description of hardware configuration example)
1, 2, and 4 in each of the above-described embodiments may be configured by independent hardware circuits, or a function (processing) unit (software module) of a software program Can be captured. However, the division of each part shown in these drawings is a configuration for convenience of explanation, and various configurations can be assumed for mounting. An example of the hardware environment in such a case will be described with reference to FIG.

  FIG. 6 is a diagram illustrating the configuration of a computer (information processing apparatus) applicable to the wireless communication system according to each embodiment of the present invention and its modification. That is, FIG. 6 shows a configuration of a computer that can realize at least one of the wireless communication apparatuses 1 and 200, the servers 100 and 600, and the terminals 500 and 501 in the above-described embodiments. The hardware environment that can realize each function in is shown.

  6 includes a CPU (Central Processing Unit) 901, a ROM (Read Only Memory) 902, a RAM (Random Access Memory) 903, a communication interface (I / F) 904, a display 905, and a hard disk device (HDD). ) 906, and these are connected via a bus 907. Note that when the computer shown in FIG. 6 functions as the wireless communication devices 1 and 200, the servers 100 and 600, or the terminals 500 and 501, the display 905 is not necessarily provided.

  The communication interface 904 is a general communication unit that realizes communication between the computers in each of the above-described embodiments. The hard disk device 906 stores a program group 906A and various storage information 906B. The program group 906A is, for example, a computer program for realizing a function corresponding to each block (each unit) shown in FIG. The various storage information 906B is, for example, setting information (not shown) that is referred to when the program group 906A operates. In such a hardware configuration, the CPU 901 governs the overall operation of the computer 900.

  The present invention described by taking the above-described embodiments as examples can realize the functions of the block configuration diagrams (FIGS. 1, 2, and 4) or the flowchart (FIG. 3) referred to in the description of the embodiments. After the computer program is supplied, the computer program is read out and executed by the CPU 901 of the hardware. The computer program supplied to the computer may be stored in a non-volatile storage device (storage medium) such as the readable / writable RAM 903 or the hard disk device 906.

  In the above-described case, the computer program can be supplied to each apparatus by installing it in the apparatus via various recording media such as a floppy disk (registered trademark) and a CD-ROM (Compact Disc-ROM). A general procedure can be adopted at present, such as a method for downloading from the outside via a communication network (communication network) 1000 such as the Internet. In such a case, the present invention can be understood to be configured by a computer-readable storage medium in which the code constituting the computer program or the code is recorded.

  Note that a part or all of the above-described embodiment can be described as the following supplementary notes, but is not limited to the following supplementary notes.

(Appendix 1)
First measurement that can be obtained without performing data communication related to data to be communicated, and that measures a first index that is a value representing an execution state of communication on a communication line, and outputs the measured first index Means,
Second measurement means for measuring a second index, which is a value representing a communication execution state in the communication line, which can be acquired during the execution of the data communication, and outputting the measured second index;
Based on the first index, a first congestion level representing the congestion level of the line is calculated, and based on the second index, a second congestion level representing the congestion level of the line is calculated, Congestion degree calculating means for outputting the first congestion degree and the second congestion degree;
Based on the first congestion level, the start or restart of the data communication is determined, based on the second congestion level, the interruption of the data communication is determined, and determination result information representing the determination result is output. Judgment means,
And a data communication control unit that controls the data communication based on the determination result information.

(Appendix 2)
The determination means determines that the data communication is started or restarted when the first congestion level indicates that the first congestion level is less than a predetermined threshold value, and the second congestion level is equal to or greater than a predetermined threshold value. The wireless communication apparatus according to appendix 1, wherein the wireless communication apparatus determines that the data communication is interrupted when it indicates that the terminal is congested.

(Appendix 3)
The first measuring means continues to measure the first index and output the first index even during execution of the data communication,
The degree-of-congestion calculation means further calculates the first degree of congestion when calculating the second degree of congestion, and outputs the first degree of congestion together with the second degree of congestion,
The wireless communication apparatus according to claim 1 or 2, wherein the determination unit determines whether to interrupt the data communication based on the first congestion level and the second congestion level.

(Appendix 4)
The first measuring means measures a radio condition in the communication line as the first index,
The wireless communication device according to any one of attachments 1 to 3, wherein the second measurement unit measures communication throughput in the data communication as the second index.

(Appendix 5)
The wireless communication device according to appendix 4, wherein the congestion degree calculating means calculates the first congestion degree as a moving average value.

(Appendix 6)
The wireless communication device according to appendix 4, wherein the congestion degree calculation means calculates the first congestion degree as an exponential smoothing value.

(Appendix 7)
The wireless communication device according to any one of appendix 4 to appendix 6, wherein the second measurement unit calculates the communication throughput as a moving average value.

(Appendix 8)
The wireless communication device according to any one of appendix 4 to appendix 6, wherein the second measurement unit calculates the communication throughput as an exponential smoothing value.

(Appendix 9)
Using an information processing device
When data communication related to the communication target data is not performed,
Measuring a first index, which is a value representing an execution state of communication in a communication line, which can be obtained without performing the data communication;
Based on the first index, a first congestion level representing the congestion level of the line is calculated,
Starting or resuming the data communication based on the first congestion degree;
During execution of the data communication,
Measuring a second index which is a value representing an execution state of communication in the communication line, which can be acquired during execution of the data communication;
Based on the second index, a second congestion level representing the congestion level of the line is calculated,
A wireless communication method for interrupting the data communication based on the second congestion level.

(Appendix 10)
The start or restart of the data communication is performed when the first congestion degree indicates that the congestion is not less than a predetermined threshold,
The wireless communication method according to claim 9, wherein the interruption of the data communication is performed when the second congestion level indicates that the second congestion level is more than a predetermined threshold.

(Appendix 11)
During execution of the data communication,
Continuing to measure the first index;
In calculating the second congestion level, the first congestion level is also calculated.
The wireless communication method according to appendix 9 or 10, wherein the data communication is interrupted based on the first congestion level and the second congestion level.

(Appendix 12)
As the first index, measure the wireless status in the communication line,
The wireless communication method according to any one of appendices 9 to 11, wherein a communication throughput in the data communication is measured as the second index.

(Appendix 13)
A first measurement process that measures a first index that is a value representing a communication execution state in a communication line and that can be acquired without performing data communication related to data to be communicated, and outputs the measured first index When,
A second measurement process for measuring a second index, which is a value representing a communication execution state in the communication line, which can be acquired during execution of the data communication, and outputting the measured second index;
Based on the first index, a first congestion level representing the congestion level of the line is calculated, and based on the second index, a second congestion level representing the congestion level of the line is calculated, A congestion degree calculation process for outputting the first congestion degree or the second congestion degree;
Based on the first congestion level, the start or restart of the data communication is determined, based on the second congestion level, the interruption of the data communication is determined, and determination result information representing the determination result is output. Judgment processing,
A recording medium recording a computer program that causes a computer to execute data communication control processing for controlling the data communication based on the determination result information.

(Appendix 14)
In the determination process, when the first congestion level indicates that the congestion is not more than a predetermined threshold, it is determined to start or restart the data communication, and the second congestion level is equal to or greater than the predetermined threshold. 14. A recording medium on which the computer program according to appendix 13 is recorded.

(Appendix 15)
In the first measurement process, during the execution of the data communication, the measurement of the first index and the output of the first index are continued.
In the congestion degree calculation process, when the second congestion degree is calculated, the first congestion degree is further calculated, and the first congestion degree is output together with the second congestion degree,
In the determination process, when the interruption of the data communication is determined, the interruption is determined based on the first congestion level and the second congestion level. The computer program according to appendix 13 or 14 is recorded recoding media.

(Appendix 16)
In the first measurement process, as the first index, a radio condition in the communication line is measured,
The recording medium recording the computer program according to any one of appendices 13 to 15, wherein in the second measurement process, communication throughput in the data communication is measured as the second index.

  The present invention has been described above using the above-described embodiment as an exemplary example. However, the present invention is not limited to the above-described embodiment. That is, the present invention can apply various modes that can be understood by those skilled in the art within the scope of the present invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2014-129906 for which it applied on June 25, 2014, and takes in those the indications of all here.

DESCRIPTION OF SYMBOLS 1,200 Wireless communication apparatus 2 1st measurement part 3 2nd measurement part 4, 213 Congestion degree calculation part 5, 214 Judgment part 6 Communication control part 100, 600 Server 110 Server side data communication part 210 Terminal side control part 211 Wireless measurement unit 212 Throughput measurement unit 220 Terminal side data communication unit 300, 1000 Communication network (communication network)
500 terminals (wireless communication devices)
501 terminal (general terminal)
1000 Communication network (communication network)
1001 LTE communication network 1002 ISP communication network 900 Information processing device (computer)
901 CPU
902 ROM
903 RAM
904 Communication interface (I / F)
905 Display 906 Hard disk device (HDD)
906A Program group 906B Various stored information 907 Bus

Claims (16)

First measurement that can be obtained without performing data communication related to data to be communicated, and that measures a first index that is a value representing an execution state of communication on a communication line, and outputs the measured first index Means,
Second measurement means for measuring a second index, which is a value representing a communication execution state in the communication line, which can be acquired during the execution of the data communication, and outputting the measured second index;
Based on the first index, a first congestion level representing the congestion level of the line is calculated, and based on the second index, a second congestion level representing the congestion level of the line is calculated, Congestion degree calculating means for outputting the first congestion degree and the second congestion degree;
Based on the first congestion level, the start or restart of the data communication is determined, based on the second congestion level, the interruption of the data communication is determined, and determination result information representing the determination result is output. Judgment means,
A wireless communication apparatus comprising: a data communication control unit that controls the data communication based on the determination result information. The determination means determines that the data communication is started or restarted when the first congestion level indicates that the first congestion level is less than a predetermined threshold value, and the second congestion level is equal to or greater than a predetermined threshold value. The wireless communication apparatus according to claim 1, wherein it is determined that the data communication is interrupted when the data communication is congested. The first measuring means continues to measure the first index and output the first index even during execution of the data communication,
The degree-of-congestion calculation means further calculates the first degree of congestion when calculating the second degree of congestion, and outputs the first degree of congestion together with the second degree of congestion,
The wireless communication apparatus according to claim 1, wherein the determination unit determines whether to interrupt the data communication based on the first congestion level and the second congestion level. The first measuring means measures a radio condition in the communication line as the first index,
The wireless communication apparatus according to any one of claims 1 to 3, wherein the second measurement unit measures communication throughput in the data communication as the second index. The wireless communication apparatus according to claim 4, wherein the congestion degree calculating unit calculates the first congestion degree as a moving average value. The wireless communication apparatus according to claim 4, wherein the congestion degree calculation unit calculates the first congestion degree as an exponential smoothing value. The wireless communication apparatus according to claim 4, wherein the second measurement unit calculates the communication throughput as a moving average value. The wireless communication apparatus according to claim 4, wherein the second measurement unit calculates the communication throughput as an exponential smoothing value. Using an information processing device
When data communication related to the communication target data is not performed,
Measuring a first index, which is a value representing an execution state of communication in a communication line, which can be obtained without performing the data communication;
Based on the first index, a first congestion level representing the congestion level of the line is calculated,
Starting or resuming the data communication based on the first congestion degree;
During execution of the data communication,
Measuring a second index which is a value representing an execution state of communication in the communication line, which can be acquired during execution of the data communication;
Based on the second index, a second congestion level representing the congestion level of the line is calculated,
A wireless communication method for interrupting the data communication based on the second congestion level. The start or restart of the data communication is performed when the first congestion degree indicates that the congestion is not less than a predetermined threshold,
The wireless communication method according to claim 9, wherein the interruption of the data communication is performed when the second congestion level indicates that the congestion is greater than a predetermined threshold. During execution of the data communication,
Continuing to measure the first index;
In calculating the second congestion level, the first congestion level is also calculated.
The wireless communication method according to claim 9 or 10, wherein the interruption of the data communication is performed based on the first congestion level and the second congestion level. As the first index, measure the wireless status in the communication line,
The wireless communication method according to any one of claims 9 to 11, wherein a communication throughput in the data communication is measured as the second index. A first measurement process that measures a first index that is a value representing a communication execution state in a communication line and that can be acquired without performing data communication related to data to be communicated, and outputs the measured first index When,
A second measurement process for measuring a second index, which is a value representing a communication execution state in the communication line, which can be acquired during execution of the data communication, and outputting the measured second index;
Based on the first index, a first congestion level representing the congestion level of the line is calculated, and based on the second index, a second congestion level representing the congestion level of the line is calculated, A congestion degree calculation process for outputting the first congestion degree and the second congestion degree;
Based on the first congestion level, the start or restart of the data communication is determined, based on the second congestion level, the interruption of the data communication is determined, and determination result information representing the determination result is output. Judgment processing,
A recording medium recording a computer program that causes a computer to execute data communication control processing for controlling the data communication based on the determination result information. In the determination process, when the first congestion level indicates that the congestion is not more than a predetermined threshold, it is determined to start or restart the data communication, and the second congestion level is equal to or greater than the predetermined threshold. 14. A recording medium having recorded thereon the computer program according to claim 13, wherein it is determined that the data communication is interrupted when it indicates that the data communication is congested. In the first measurement process, during the execution of the data communication, the measurement of the first index and the output of the first index are continued.
In the congestion degree calculation process, when the second congestion degree is calculated, the first congestion degree is further calculated, and the first congestion degree is output together with the second congestion degree,
The computer program according to claim 13 or 14, wherein, in the determination process, when determining interruption of the data communication, determination of interruption is performed based on the first congestion degree and the second congestion degree. Recording medium. In the first measurement process, as the first index, a radio condition in the communication line is measured,
The recording medium recording the computer program according to any one of claims 13 to 15, wherein in the second measurement process, communication throughput in the data communication is measured as the second index.

Images