JP5705189B2 - Mobile terminal, base station, communication system, frequency determination method, program - Google Patents

Description

  The present invention relates to a mobile terminal, a base station, a communication system, a frequency determination method, and a program.

  Recently, 3GPP_Rel. LTE-Advanced is standardized as a standard that further develops LTE (Long_Term_Evolution) standardized by 8/9. One of the LTE-Advanced specifications is a carrier aggregation technology. The carrier aggregation is a technique for simultaneously transmitting and receiving a plurality of divided band block carriers called component carriers. Carrier aggregation includes intraband carrier aggregation in which a plurality of component carriers in the same frequency band are bundled for transmission / reception, and interband carrier aggregation in which a plurality of component carriers in different frequency bands are bundled for transmission / reception. For example, Patent Document 1 discloses a cell management method in a carrier aggregation environment.

  Conventionally, when performing carrier aggregation, whether or not carrier aggregation is possible is determined based on downlink reception information (channel quality), and a user schedule is performed. Conventionally, the frequency band used for uplink communication has been the same as the frequency band used for downlink communication.

JP 2012-046663 A

  In the carrier aggregation, since the same frequency band as the downlink band determined based on the received information (channel quality) of the downlink band is used as the uplink frequency band, when the uplink signal has a large capacity, Alternatively, when transmitting and receiving large-capacity data on both the upstream and downstream sides, there has been a problem that the upstream communication speed becomes slow. Accordingly, an object of the present invention is to secure an uplink communication speed when an uplink signal has a large capacity.

  The portable terminal of the present invention includes a threshold value storage unit, an information amount category determination unit, and a priority information generation unit. The threshold storage unit stores a threshold for dividing the amount of transmission information into sections. The information amount category determination unit acquires the transmission information amount of the transmission data, and determines the category of the transmission information amount with reference to the stored threshold value. The priority information generation unit generates priority information indicating which of the uplink and the downlink is prioritized according to the determined category.

  According to the mobile terminal of the present invention, it is possible to ensure the uplink communication speed when the uplink signal has a large capacity.

FIG. 3 is a block diagram illustrating a configuration of a communication system according to first, second, and third embodiments. FIG. 6 is a sequence diagram showing the operation of the communication system according to the first, second, and third embodiments. FIG. 3 is a block diagram illustrating a configuration of a transmission information amount determination unit of the mobile terminal according to the first embodiment. 6 is a flowchart illustrating an operation of a transmission information amount determination unit of the mobile terminal according to the first embodiment. The block diagram which shows the structure of the transmission information amount determination part of the portable terminal of Example 2. FIG. 9 is a flowchart illustrating an operation of a transmission information amount determination unit of the mobile terminal according to the second embodiment. The block diagram which shows the structure of the transmission information amount determination part of a portable terminal of the modification 1, and a base station. The block diagram which shows the structure of the transmission information amount determination part of the portable terminal of Example 3. FIG. 10 is a flowchart illustrating an operation of a transmission information amount determination unit of the mobile terminal according to the third embodiment.

  Hereinafter, embodiments of the present invention will be described in detail. In addition, the same number is attached | subjected to the structure part which has the same function, and duplication description is abbreviate | omitted.

  The communication system according to the first embodiment will be described with reference to FIGS. FIG. 1 is a block diagram illustrating a configuration of a communication system 100 (200, 300) according to the present embodiment, the second embodiment, and the third embodiment. FIG. 2 is a sequence diagram showing the operation of the communication system 100 (200, 300) of the present embodiment, the second embodiment, and the third embodiment. FIG. 3 is a block diagram illustrating a configuration of the transmission information amount determination unit 12 of the UE (User_Equipment, portable terminal) 1 according to the present embodiment. FIG. 4 is a flowchart illustrating the operation of the transmission information amount determination unit 12 of the UE 1 according to this embodiment.

  As illustrated in FIG. 1, the communication system 100 according to the present embodiment includes a UE 1 and an eNB (evolved_Node_B, base station) 5. It is assumed that the eNB 5 is a base station close to the UE 1 and the UE 1 exists in the cell of the eNB 5. The UE 1 includes a CA availability information reception unit 11, a transmission information amount determination unit 12, a priority information transmission unit 13, and a schedule information reception unit 14. The eNB 5 includes a priority information receiving unit 51, a schedule information determining unit 52, a schedule information transmitting unit 53, a schedule information storing unit 54, a CA availability information transmitting unit 55, and a user occupation rate detecting unit 56.

  Whether the user occupancy rate detection unit 56 of the eNB 5 detects the occupancy rate (number of users) in the frequency band used for carrier aggregation from the current schedule state, and can carrier aggregation be executed? It is determined whether or not (S56). In the present embodiment, an example will be described in which UE1 attempts to perform carrier aggregation in three frequency bands f1, f2, and f3 that are different from each other. In this case, the user occupancy rate detection unit 56 detects the band occupancy rates of the frequency bands f1, f2, and f3 used for carrier aggregation and determines whether or not carrier aggregation can be performed. Determine (S56). When there is sufficient free space in the bands f1, f2, and f3 and carrier aggregation can be performed, the user occupation rate detection unit 56 generates and outputs a CA permission flag. Next, the CA propriety information transmission unit 55 transmits a CA permission flag to the UE 1 (S55). Here, the CA availability information transmission unit 55 and the schedule information transmission unit 53 may be configured as one common data transmission unit.

  Next, the CA availability information receiving unit 11 of the UE1 receives a CA permission flag from the CA availability information transmitting unit 55 of the eNB 5 (S11). The transmission information amount determination unit 12 of the UE 1 obtains the CA permission flag, determines when the transmission information amount belongs when the CA becomes possible, and gives priority to the uplink or the downlink. Priority information indicating whether to perform or not is generated and output (S12). Details of the transmission information amount determination unit 12 will be described later. Next, the priority information transmission unit 13 transmits the generated priority information to the eNB 5 (S13). Although illustration and detailed description are omitted, UE1 transmits a measurement result (Measurement_Report) of the reception environment to eNB5.

  The priority information receiving unit 51 of the eNB 5 acquires priority information from the UE 1 (S51). The schedule information determination unit 52 determines schedule information according to the priority information (S52). Specifically, the schedule information determination unit 52 refers to the priority information, and when the priority information indicates uplink priority, determines the frequency band used for the uplink signal based on the uplink channel quality, Is determined as the frequency band used for the downlink signal. On the other hand, the schedule information determination unit 52 refers to the priority information, and when the priority information indicates downlink priority, determines the frequency band used for the downlink signal based on the downlink channel quality, Is determined as the frequency band used for the uplink signal. The schedule information determination unit 52 determines the Pcell and Scell to be assigned to the UE 1 based on the determined frequency band, or determines whether or not a change occurs in these. The schedule information determination unit 52 schedules the user data in the component carrier determined as described above, and determines the schedule information for each user (S52). The schedule information storage unit 54 is appropriately updated with newly determined schedule information. The schedule information transmission unit 53 transmits schedule information (S53). The schedule information receiving unit 14 of the UE 1 receives schedule information from the eNB 5 (S14).

  Although illustration and detailed description are omitted, the eNB 5 receives information including a measurement result (Measurement_Report) of the reception environment from the UE 1.

  As a result of the processing described above, conventionally, it was called pair band (for example, uplink and downlink of f1), and uplink and downlink were simultaneously used in one frequency band, whereas uplink communication was performed in uplink of f1. , F2 and f3 downlink CA communication may be performed, and the uplink and downlink frequency bands may be different.

  Hereinafter, with reference to FIGS. 3 and 4, the transmission information amount determination unit 12 included in the UE (mobile terminal) 1 of the present embodiment will be described in detail. FIG. 3 is a block diagram illustrating a configuration of the transmission information amount determination unit 12 of the UE 1 according to the present embodiment. FIG. 4 is a flowchart illustrating the operation of the transmission information amount determination unit 12 of the UE 1 according to this embodiment. As illustrated in FIG. 3, the transmission information amount determination unit 12 includes an information amount category determination unit 121, a threshold storage unit 122, and a priority information generation unit 123. The threshold storage unit 122 stores one or several thresholds for dividing the amount of transmission information into categories. For example, the transmission information amount is classified into three categories (small, medium, and large), and the threshold value of the information amount that becomes the boundary between these categories is α and β (α <β). In this case, assuming that the amount of transmission information is D, when D <α, the amount of transmission information is divided into small. When α ≦ D <β, the amount of transmission information is divided into medium. When β ≦ D, the amount of transmission information is roughly classified. There is no limit to the number of threshold values stored in the threshold value storage unit 122. Therefore, the more the threshold value is set, the finer the information amount can be set. The information amount category determination unit 121 acquires the transmission information amount of the transmission data, and determines the category of the transmission information amount with reference to the threshold value stored in the threshold value storage unit 122 (SS121). Next, the priority information generation unit 123 generates and outputs priority information indicating which of the uplink and the downlink is prioritized according to the category determined by the information amount category determination unit 121 (SS123). The priority information generation unit 123 generates priority information indicating that the uplink is given priority when the determined category is a predetermined category or a category having a larger amount of information than the predetermined category. If there is, priority information indicating that the downlink is prioritized may be generated. For example, considering the above example with three categories (small, medium, and large), if the category is determined to be small or medium, the downlink is given priority and the category is determined to be large. In such a case, priority should be given to the uplink. In addition, when the classification is determined to be small, the downlink may be prioritized, and when the classification is determined to be medium or large, the uplink may be prioritized. The relationship between the classification and the priority information can be arbitrarily set. The above-described transmission information amount determination unit 12 may be provided on the eNB 5 side, and only the transmission information amount D may be transmitted from the UE 1 to the eNB 5 and the classification may be determined by referring to the threshold on the eNB 5 side. By providing the transmission information amount determination unit 12 on the eNB 5 side, it is possible to reduce the load of determination calculation on the UE 1 side. Moreover, it is good also as an implementation which observes the transmission information amount of all the transmission signals, and after determining the amount of information over a fixed data section t1, it communicates by the same up-and-down combination about arbitrary data sections t2. The implementation may be such that after the passage of an arbitrary section t2, the information amount of the signal in the section t1 is determined again to change the combination of the upper and lower frequencies.

  As described above, according to the communication system 100 of the present embodiment, the transmission information amount determination unit 12 determines the classification of the transmission information amount, generates priority information indicating which one of uplink / downlink has priority, Since the information determination unit 52 determines the schedule information according to the priority information, the uplink communication speed can be ensured when the uplink signal has a large capacity.

  With reference to FIG. 1 again, a communication system 200 according to the second embodiment in which a part of the communication system 100 according to the first embodiment is changed will be described. As shown in FIG. 1, the communication system 200 according to the present embodiment includes a UE 2 and an eNB 5. It is assumed that the eNB 5 is a base station close to the UE 2 and the UE 2 exists in the cell of the eNB 5. The UE 2 includes a CA availability information reception unit 11, a transmission information amount determination unit 22, a priority information transmission unit 13, and a schedule information reception unit 14. Since the configuration and operation of the eNB 5 are the same as those of the eNB 5 in the first embodiment, the description thereof is omitted. The difference between the UE 2 of the present embodiment and the UE 1 of the first embodiment is only that the transmission information amount determination unit 12 in the first embodiment is changed to the transmission information amount determination unit 22 in the present embodiment.

  The transmission information amount determination unit 22 of the present embodiment acquires a CA permission flag from the CA availability information reception unit 11, determines the type of the currently activated application, determines the transmission information amount in the application type, Priority information indicating whether to give priority to uplink or downlink is generated and output (S22). Hereinafter, the transmission information amount determination unit 22 according to the present embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a block diagram illustrating a configuration of the transmission information amount determination unit 22 of the UE 2 according to the present embodiment. FIG. 6 is a flowchart illustrating the operation of the transmission information amount determination unit 22 of the UE 2 according to this embodiment. As illustrated in FIG. 5, the transmission information amount determination unit 22 according to the present exemplary embodiment includes an application determination unit 221, an application information amount storage unit 222, and a priority information generation unit 223. The application information amount storage unit 222 stores application type information and the average transmission information amount of the application in pairs. For example, in the application information amount storage unit 222, a transmission information amount larger than that of other application types is stored as a pair for the image editing application and the moving image editing application. The application determination unit 221 acquires the CA permission flag from the CA permission information reception unit 11, determines the type of the application currently activated in the UE 2, and extracts the average transmission information amount with reference to the application information amount storage unit 222. Then, the average transmission information amount is set as a predicted value of the transmission information amount (SS221). At this time, when a plurality of applications are activated, the average transmission information amount is extracted with reference to the application information amount storage unit 222 for each of the plurality of application types, and the maximum value is set as the transmission information amount. It is set as a predicted value (SS221). Next, the priority information generation unit 223 generates and outputs priority information indicating which of the uplink and downlink is prioritized according to the predicted value of the transmission information amount (SS223). Specifically, the priority information generation unit 223 generates and outputs priority information indicating that the uplink is given priority if the predicted value of the transmission information amount exceeds a predetermined value, and otherwise. Priority information indicating that the downlink is prioritized is generated and output (SS223). The transmission information amount stored in the application information amount storage unit 222 may be measured and updated every time the application is activated and communicates, or may be observed and updated once every plural times. If the amount of transmission changes by the application in time (for example, when a large amount of data is transmitted at the beginning for a certain period of time, but only after that, it is only downloaded), the time is set as priority information for the application. Thus, uplink priority and downlink priority may be mixed.

[Modification 1]
Next, Modification 1 which is a modification of Embodiment 2 will be described with reference to FIG. FIG. 7 is a block diagram showing a configuration of a transmission information amount determination unit 22 ′ and a base station (eNB 5 ′) of the mobile terminal according to the present modification. As illustrated in FIG. 7, the transmission information amount determination unit 22 ′ included in the UE 2 ′ of the present modification includes an application determination unit 221, a priority information generation unit 223, and an application information management unit 224. The eNB 5 ′ of the present modified example newly includes an application average information transmission amount control unit 57 in addition to the configuration (51 to 56) included in the eNB 5. In addition, the application information amount storage unit 222 included in the transmission information amount determination unit 22 of the UE 2 in the second embodiment is moved to the eNB 5 ′ side in the present modification, and becomes the application information amount storage unit 58.

  In the present modification, the application information management unit 224 of the transmission information amount determination unit 22 'transmits the used application information to the eNB 5'. The application average information transmission amount control unit 57 of the eNB 5 ′ receives used application information from the transmission information amount determination unit 22 ′. The application average information transmission amount control unit 57 refers to the application information amount storage unit 58 and transmits the average transmission information amount to the UE 2 ′. The application determination unit 221 of the UE 2 ′ receives the average transmission information amount and sets the average transmission information amount as a predicted value of the transmission information amount (SS 221). The priority information generation unit 223 generates and outputs priority information indicating which of the uplink and downlink is prioritized according to the predicted value of the transmission information amount (SS223). Specifically, the priority information generation unit 223 generates and outputs priority information indicating that the uplink is given priority if the predicted value of the transmission information amount exceeds a predetermined value, and otherwise. Priority information indicating that the downlink is prioritized is generated and output (SS223).

  Not only the said Example 2 and the modification 1, but the structure which arrange | positions the application determination part 221 etc. in the eNB5 side, produces | generates priority information in the base station side, and determines a schedule is also possible. In this configuration, since there is an information storage unit on the eNB 5 side, the application information amount can be managed and updated centrally (the application information amount does not differ for each terminal), and there is an advantage that the load on the UE 2 side is reduced.

  As described above, according to the communication system of the present embodiment and the modification thereof, the type of the active application is determined, the predicted value of the transmission information amount is generated, and the uplink value is determined according to the predicted value of the transmission information amount. Priority information indicating which of the downlinks is prioritized and the schedule information determination unit 52 of the eNB 5 determines the schedule information according to the priority information, so that the uplink signal has a large capacity when the uplink signal has a large capacity. Communication speed can be secured.

  With reference to FIG. 1 again, a communication system 300 according to the third embodiment in which a part of the communication system 100 according to the first embodiment is changed will be described. As shown in FIG. 1, the communication system 300 according to the present embodiment includes a UE 3 and an eNB 5. The eNB 5 is assumed to be a base station close to the UE 3, and the UE 3 is assumed to be present in the cell of the eNB 5. The UE 3 includes a CA availability information reception unit 11, a transmission information amount determination unit 32, a priority information transmission unit 13, and a schedule information reception unit 14. Since the configuration and operation of the eNB 5 are the same as those of the eNB 5 in the first embodiment, the description thereof is omitted. The difference between the UE 3 of the present embodiment and the UE 1 of the first embodiment is only that the transmission information amount determination unit 12 in the first embodiment is changed to the transmission information amount determination unit 32 in the present embodiment.

  The transmission information amount determination unit 32 according to the present embodiment acquires a CA permission flag from the CA availability information reception unit 11, determines a currently accessed site, determines a transmission information amount at the access site, and determines an uplink. Priority information indicating which of the downlinks is prioritized is generated and output (S32). Hereinafter, the transmission information amount determination unit 32 according to the present embodiment will be described with reference to FIGS. 8 and 9. FIG. 8 is a block diagram illustrating a configuration of the transmission information amount determination unit 32 of the UE 3 according to the present embodiment. FIG. 9 is a flowchart illustrating the operation of the transmission information amount determination unit 32 of the UE 3 according to this embodiment. As illustrated in FIG. 8, the transmission information amount determination unit 32 according to the present exemplary embodiment includes an access site determination unit 321, a site information amount storage unit 322, and a priority information generation unit 323. The site information amount storage unit 322 stores the URL of the site and the average transmission information amount in the site URL in pairs. As the average transmission information amount in the site URL, for example, a value derived from a user transmission history (URL and data amount) accumulated in advance can be used. For example, the site information amount storage unit 322 stores a transmission information amount larger than other site URLs as a pair with respect to the URLs of the image distribution site and the moving image distribution site. The access site determination unit 321 acquires the CA permission flag from the CA permission information reception unit 11, determines the site URL currently being accessed in the UE 3, and extracts the average transmission information amount by referring to the site information amount storage unit 322. Then, the average transmission information amount is set as a predicted value of the transmission information amount (SS321). At this time, when a plurality of sites are accessed simultaneously, the average transmission information amount is extracted with reference to the site information amount storage unit 322 for each of the plurality of site URLs, and the maximum value is set as the transmission information. It is set as the predicted value of quantity (SS321). Next, the priority information generation unit 323 generates and outputs priority information indicating which of the uplink and downlink is prioritized according to the predicted value of the transmission information amount (SS323). Specifically, the priority information generation unit 323 generates and outputs priority information indicating that the uplink is given priority if the predicted value of the transmission information amount exceeds a predetermined value, and otherwise. Priority information indicating that the downlink is prioritized is generated and output (SS323). In addition, these processes arrange | position the site information amount memory | storage part 322 to the eNB5 side similarly to Example 2, transmit the predicted value of transmission information amount to UE3, and generate and transmit priority information in UE3 based on it. It may be performed, or priority information may be generated on the eNB 5 side to create a schedule.

  As described above, according to the communication system 300 of the present embodiment, the transmission information amount determination unit 32 of the UE 3 determines the currently accessed site URL, generates a prediction value of the transmission information amount, and predicts the transmission information amount. Depending on the value, priority information indicating which of uplink / downlink is prioritized is generated, and the schedule information determination unit 52 of the eNB 5 determines the schedule information according to the priority information. In this case, the uplink communication speed can be secured.

  In addition, the various processes described above are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Needless to say, other modifications are possible without departing from the spirit of the present invention.

  Further, when the above-described configuration is realized by a computer, processing contents of functions that each device should have are described by a program. The processing functions are realized on the computer by executing the program on the computer.

  The program describing the processing contents can be recorded on a computer-readable recording medium. As the computer-readable recording medium, for example, any recording medium such as a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory may be used.

  The program is distributed by selling, transferring, or lending a portable recording medium such as a DVD or CD-ROM in which the program is recorded. Furthermore, the program may be distributed by storing the program in a storage device of the server computer and transferring the program from the server computer to another computer via a network.

  A computer that executes such a program first stores, for example, a program recorded on a portable recording medium or a program transferred from a server computer in its own storage device. When executing the process, the computer reads a program stored in its own recording medium and executes a process according to the read program. As another execution form of the program, the computer may directly read the program from a portable recording medium and execute processing according to the program, and the program is transferred from the server computer to the computer. Each time, the processing according to the received program may be executed sequentially. Also, the program is not transferred from the server computer to the computer, and the above-described processing is executed by a so-called ASP (Application Service Provider) type service that realizes the processing function only by the execution instruction and result acquisition. It is good. Note that the program in this embodiment includes information that is used for processing by an electronic computer and that conforms to the program (data that is not a direct command to the computer but has a property that defines the processing of the computer).

  In this embodiment, the present apparatus is configured by executing a predetermined program on a computer. However, at least a part of these processing contents may be realized by hardware.

Claims (13)

A threshold storage unit for storing a threshold for dividing the size of the amount of transmission information into sections;
An information amount classification determination unit that acquires a transmission information amount of transmission data and determines a classification of the transmission information amount with reference to the stored threshold;
A mobile terminal comprising: a priority information generation unit that generates priority information indicating which one of uplink and downlink is prioritized according to the determined category. An application information amount storage unit that stores application type information and the average transmission information amount in the application in pairs;
An application determination unit that determines a type of an active application, extracts the average transmission information amount with reference to the application information amount storage unit, and uses the average transmission information amount as a predicted value of the transmission information amount;
A priority information generating unit that generates and outputs priority information indicating which one of uplink and downlink is prioritized according to a predicted value of the transmission information amount;
A mobile terminal comprising: A site information amount storage unit that stores the URL of the site and the average transmission information amount in the site URL in pairs;
An access site determination unit that determines a site URL being accessed, extracts an average transmission information amount with reference to the site information amount storage unit, and uses the average transmission information amount as a predicted value of the transmission information amount;
A priority information generating unit that generates and outputs priority information indicating which one of uplink and downlink is prioritized according to a predicted value of the transmission information amount;
A mobile terminal comprising: The mobile terminal according to any one of claims 1 to 3,
The priority information generation unit generates and outputs the priority information when carrier aggregation is executed in the mobile terminal. The mobile terminal according to any one of claims 1 to 3,
A mobile terminal, wherein a frequency used for the uplink and a frequency used for the downlink are different from each other. A threshold storage unit for storing a threshold for dividing the size of the amount of transmission information into sections;
An information amount classification determination unit that acquires a transmission information amount of transmission data of a mobile terminal in a cell and determines a division of the transmission information amount with reference to the stored threshold value;
A base station comprising: a priority information generation unit that generates priority information indicating which one of uplink and downlink is prioritized according to the determined classification. A communication system composed of a mobile terminal and a base station,
The portable terminal is
A threshold storage unit for storing a threshold for dividing the size of the amount of transmission information into sections;
An information amount classification determination unit that acquires a transmission information amount of transmission data and determines a classification of the transmission information amount with reference to the stored threshold;
A priority information generating unit that generates priority information indicating which one of the uplink and the downlink is prioritized according to the determined classification;
The base station
A communication system comprising: a schedule information determination unit that determines schedule information according to the priority information. A communication system composed of a mobile terminal and a base station,
The portable terminal is
An application information amount storage unit that stores application type information and the average transmission information amount in the application in pairs;
An application determination unit that determines a type of an active application, extracts the average transmission information amount with reference to the application information amount storage unit, and uses the average transmission information amount as a predicted value of the transmission information amount;
A priority information generating unit that generates and outputs priority information indicating whether to give priority to uplink or downlink according to a predicted value of the transmission information amount;
The base station
A communication system comprising: a schedule information determination unit that determines schedule information according to the priority information. A communication system composed of a mobile terminal and a base station,
The portable terminal is
A site information amount storage unit that stores the URL of the site and the average transmission information amount in the site URL in pairs;
An access site determination unit that determines a site URL being accessed, extracts an average transmission information amount with reference to the site information amount storage unit, and uses the average transmission information amount as a predicted value of the transmission information amount;
A priority information generating unit that generates and outputs priority information indicating whether to give priority to uplink or downlink according to a predicted value of the transmission information amount;
The base station
A communication system comprising: a schedule information determination unit that determines schedule information according to the priority information. A frequency determination method executed by a mobile terminal and a base station,
The portable terminal is
An information amount category determination step of acquiring a transmission information amount of transmission data and determining a category of the transmission information amount with reference to a threshold value for dividing the size of the transmission information amount into segments;
A priority information generation step of generating priority information indicating which one of the uplink and downlink is prioritized according to the determined classification;
The base station
A frequency determination method, comprising: executing a schedule information determination step of determining schedule information according to the priority information. A frequency determination method executed by a mobile terminal and a base station,
The portable terminal is
The type of the active application is determined, the average transmission information amount is extracted with reference to the application information amount storage unit in which the application type information and the average transmission information amount in the application are stored in pairs, and the average An application determination step in which the transmission information amount is a predicted value of the transmission information amount;
A priority information generation step of generating and outputting priority information indicating which of the uplink and downlink is prioritized according to the predicted value of the transmission information amount;
The base station
A frequency determination method, comprising: executing a schedule information determination step of determining schedule information according to the priority information. A frequency determination method executed by a mobile terminal and a base station,
The portable terminal is
The site URL being accessed is determined, the average transmission information amount is extracted by referring to the site information amount storage unit in which the URL of the site and the average transmission information amount in the site URL are stored in pairs, and the average transmission information An access site determination step in which the amount is a predicted value of the amount of transmitted information;
A priority information generation step of generating and outputting priority information indicating which of the uplink and downlink is prioritized according to the predicted value of the transmission information amount;
The base station
A frequency determination method, comprising: executing a schedule information determination step of determining schedule information according to the priority information.   The program for functioning a portable terminal as a portable terminal in any one of Claim 1 to 5.

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