WO2014061432A1 - Terminal portable, station de base, système de communications, procédé de détermination de fréquence, support d'enregistrement - Google Patents

Terminal portable, station de base, système de communications, procédé de détermination de fréquence, support d'enregistrement Download PDF

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Publication number
WO2014061432A1
WO2014061432A1 PCT/JP2013/076479 JP2013076479W WO2014061432A1 WO 2014061432 A1 WO2014061432 A1 WO 2014061432A1 JP 2013076479 W JP2013076479 W JP 2013076479W WO 2014061432 A1 WO2014061432 A1 WO 2014061432A1
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WO
WIPO (PCT)
Prior art keywords
information amount
information
transmission information
amount
priority
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Application number
PCT/JP2013/076479
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English (en)
Japanese (ja)
Inventor
敬幸 古田
浩司 岡崎
楢橋　祥一
河合　邦浩
雄太 高儀
Original Assignee
株式会社エヌ・ティ・ティ・ドコモ
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Application filed by 株式会社エヌ・ティ・ティ・ドコモ filed Critical 株式会社エヌ・ティ・ティ・ドコモ
Publication of WO2014061432A1 publication Critical patent/WO2014061432A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

Definitions

  • the present invention relates to a mobile terminal, a base station, a communication system, a frequency determination method, and a recording medium.
  • LTE-Advanced has been standardized as a standard that further develops LTE (Long_Term_Evolution) standardized by 8/9.
  • the carrier aggregation is a technology 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.
  • Patent Document 1 discloses a cell management method in a carrier aggregation environment.
  • carrier aggregation when carrier aggregation is performed, whether or not carrier aggregation is possible is determined based on downlink band reception information (channel quality), and a user schedule is performed.
  • the frequency band used for uplink communication has been the same as the frequency band used for downlink communication.
  • 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.
  • 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.
  • FIG. 10 is a flowchart illustrating an operation of a transmission information amount determination unit of the mobile terminal according to the third embodiment.
  • 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.
  • the communication system 100 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 reception unit 51, a schedule information determination unit 52, a schedule information transmission unit 53, a schedule information storage unit 54, a CA availability information transmission unit 55, and a user occupation rate detection unit 56.
  • 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).
  • the 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).
  • the user occupancy rate detection unit 56 When there is sufficient free space in the bands f1, f2, and f3 and carrier aggregation is feasible, the user occupancy rate detection unit 56 generates a CA permission flag that is information indicating that carrier aggregation is permitted. Output. Next, the CA propriety information transmission unit 55 transmits a CA permission flag to the UE 1 (S55).
  • the CA availability information transmission unit 55 and the schedule information transmission unit 53 may be configured as one common data transmission unit.
  • the CA availability information receiving unit 11 of the UE 1 receives the 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.
  • 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).
  • the eNB 5 receives information including the measurement result (Measurement_Report) of the reception environment from the UE 1.
  • pair band for example, uplink and downlink of f1
  • uplink and downlink were simultaneously used in one frequency band
  • 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.
  • 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.
  • 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.
  • 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 ⁇ and ⁇ ( ⁇ ⁇ ).
  • the threshold value of the information amount that becomes the boundary between these categories is ⁇ and ⁇ ( ⁇ ⁇ ).
  • the amount of transmission information is D
  • D ⁇ the amount of transmission information is divided into small.
  • ⁇ ⁇ D ⁇ the amount of transmission information is divided into medium.
  • ⁇ ⁇ D the amount of transmission information is roughly classified.
  • 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.
  • the downlink is given priority and the category is determined to be large.
  • priority should be given to the uplink.
  • 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.
  • the transmission information amount determination unit 12 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.
  • 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.
  • 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).
  • 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.
  • the transmission information amount determination unit 22 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).
  • 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).
  • 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.
  • 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.
  • 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.
  • 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.
  • 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).
  • 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 application determination unit 221 and the like are arranged on the eNB 5 side, priority information is generated on the base station side, and the schedule is determined, without being limited to the second embodiment and the first modification.
  • 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.
  • 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.
  • the 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 with reference to FIG.
  • 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 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).
  • S32 Priority information indicating which of the downlinks is prioritized is generated and output (S32).
  • 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.
  • the transmission information amount determination unit 32 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.
  • 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.
  • 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 the amount (SS321).
  • 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).
  • these processes arrange
  • 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.
  • the program describing the processing contents can be recorded on a computer-readable recording medium.
  • a computer-readable recording medium any recording medium such as a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory may be used.
  • this 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 a program recorded on a portable recording medium or a program transferred from a server computer in its own storage device.
  • the computer reads a program stored in its own recording medium and executes a process according to the read 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.
  • the processing according to the received program may be executed sequentially.
  • the above-described processing may be executed by a so-called ASP (Application Service Provider) type service that realizes a processing function only by an execution instruction and result acquisition without transferring a program from the server computer to the computer. Good.
  • 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).
  • the present apparatus is configured by executing a predetermined program on a computer.
  • a predetermined program on a computer.
  • at least a part of these processing contents may be realized by hardware.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un terminal portable capable d'assurer une vitesse adéquate de communication en liaison montante lorsque le signal en liaison montante présente une grande capacité. Le terminal portable comprend une unité de stockage de valeur seuil, une unité de détermination de classification de quantités d'informations et un générateur d'informations de priorité. L'unité de stockage de valeur seuil conserve une valeur seuil servant à diviser la taille d'une quantité d'informations d'émission en classifications. L'unité de détermination de classification de quantités d'informations acquiert la quantité d'informations d'émission de données d'émission, et détermine la classification de la quantité d'informations d'émission en se référant à la valeur seuil conservée. Le générateur d'informations de priorité génère des informations de priorité indiquant s'il y a lieu de donner la priorité à la liaison montante ou à la liaison descendante, de façon à correspondre à la classification déterminée.
PCT/JP2013/076479 2012-10-17 2013-09-30 Terminal portable, station de base, système de communications, procédé de détermination de fréquence, support d'enregistrement WO2014061432A1 (fr)

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JP2012229859A JP5705189B2 (ja) 2012-10-17 2012-10-17 携帯端末、基地局、通信システム、周波数決定方法、プログラム
JP2012-229859 2012-10-17

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2016127298A1 (fr) * 2015-02-09 2016-08-18 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil pour réduire le temps de traitement

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WO2011115199A1 (fr) * 2010-03-19 2011-09-22 シャープ株式会社 Système de communication mobile, dispositif de station de base, dispositif de station mobile et procédé de communication
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WO2011115199A1 (fr) * 2010-03-19 2011-09-22 シャープ株式会社 Système de communication mobile, dispositif de station de base, dispositif de station mobile et procédé de communication
JP2012175258A (ja) * 2011-02-18 2012-09-10 Ntt Docomo Inc 移動端末装置、基地局装置及び通信制御方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016127298A1 (fr) * 2015-02-09 2016-08-18 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil pour réduire le temps de traitement

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