WO2014042009A1 - Système de communication mobile, station de base sans fil et station mobile - Google Patents

Système de communication mobile, station de base sans fil et station mobile Download PDF

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Publication number
WO2014042009A1
WO2014042009A1 PCT/JP2013/073021 JP2013073021W WO2014042009A1 WO 2014042009 A1 WO2014042009 A1 WO 2014042009A1 JP 2013073021 W JP2013073021 W JP 2013073021W WO 2014042009 A1 WO2014042009 A1 WO 2014042009A1
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WO
WIPO (PCT)
Prior art keywords
phantom
cell
coverage area
mobile station
phantom cell
Prior art date
Application number
PCT/JP2013/073021
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English (en)
Japanese (ja)
Inventor
健一郎 青柳
ウリ アンダルマワンティ ハプサリ
耕平 清嶋
徹 内野
Original Assignee
株式会社エヌ・ティ・ティ・ドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 WO2014042009A1 publication Critical patent/WO2014042009A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H04W48/04—Access restriction performed under specific conditions based on user or terminal location or mobility data, e.g. moving direction, speed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention relates to a mobile communication system, a radio base station, and a mobile station.
  • the radio base station eNB in order to regulate communication in a specific cell, transmits regulation information such as ACB (Access Control Barring) using broadcast information for each cell to be regulated.
  • the mobile station UE transmits a communication rejection signal from the radio base station eNB according to a restriction level calculated from the restriction information, a method for suppressing transmission of a communication start request signal in the cell, or a restriction level. How to do is known.
  • the mobile station UE When transmitting broadcast information in each of such phantom cells, the mobile station UE calculates a restriction level based on restriction information transmitted using the broadcast information every time a cell in service or in communication is switched. There is a need.
  • An object of the present invention is to provide a mobile communication system, a radio base station, and a mobile station.
  • a first feature of the present invention is a mobile communication system including a phantom cell group including a plurality of phantom cells and a macro cell having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • the phantom cell group is configured to manage the coverage area of the regulated phantom cell, and the mobile station located in the regulated phantom cell or the coverage area of the regulated phantom cell.
  • the gist of the present invention is that it is configured to reject a communication start request signal from a mobile station located in a macro cell corresponding to.
  • the second feature of the present invention is used in a mobile communication system comprising a phantom cell group composed of a number of phantom cells and a macro cell having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • a management unit configured to manage a coverage area of a regulated phantom cell in the phantom cell group, a mobile station residing in the regulated phantom cell, or
  • a determination unit configured to reject a communication start request signal from a mobile station located in a macro cell corresponding to the coverage area of the regulated phantom cell.
  • a third feature of the present invention is used in a mobile communication system including a phantom cell group including a plurality of phantom cells and a macro cell having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • a receiving unit configured to receive grant instruction information indicating whether or not information should be given to the communication start request signal, and based on the grant instruction information, the phantom cell or the macro cell, Send a communication start request signal with phantom cell identification information And gist that a transmission unit configured.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of the radio base station eNB # A according to the first embodiment of the present invention.
  • FIG. 3 is a functional block diagram of the mobile station UE according to the first embodiment of the present invention.
  • FIG. 4 is a sequence diagram showing operations of the mobile communication system according to the first embodiment of the present invention.
  • Mobile communication system according to the first embodiment of the present invention A mobile communication system according to a first embodiment of the present invention will be described with reference to FIGS.
  • the mobile communication system is an LTE mobile communication system, which is managed by a radio base station eNB # A and a macro cell #A and phantom cells # 1 to # 14. It is equipped with.
  • the coverage area of the macro cell #A and the coverage area of the phantom cell group including the phantom cells # 1 to # 14 are arranged to overlap at least partially.
  • the coverage area of the phantom cell group including phantom cells # 1 to # 14 may be managed by the radio base station eNB # A or by a radio base station eNB other than the radio base station eNB # A. May be.
  • the phantom cell is a cell different from the macro cell, and may be referred to by another name.
  • the radio base station eNB # A includes a management unit 11, a reception unit 12, a determination unit 13, and a transmission unit 14.
  • the management unit 11 is configured to manage the coverage area of the restricted phantom cell among the phantom cell group including the plurality of phantom cells # 1 to # 14.
  • the management unit 11 is configured to manage phantom cells # 6 / # 7/9 / # 12 as phantom cells to be regulated.
  • the receiving unit 12 is configured to receive various signals from the mobile station UE, the mobility management node MME (Mobility Management Entity), the gateway device S-GW, and the like.
  • MME Mobility Management Entity
  • S-GW Gateway Device
  • the receiving unit 12 is configured to receive a communication start request signal from the mobile station UE.
  • the determination unit 13 is configured to determine whether to reject the communication start request signal from the mobile station UE.
  • the determination unit 13 may include the coverage area of the mobile station UE located in the restricted phantom cell # 6 / # 7/9 / # 12 or the restricted phantom cell # 6 / # 7/9 / # 12. Is determined to reject the communication start request signal from the mobile station UE residing in the macro cell #A corresponding to.
  • the determination unit 13 covers the coverage of the mobile station UE located in the restricted phantom cell # 6 / # 7/9 / # 12 or the restricted phantom cell # 6 / # 7/9 / # 12. Even if it is a communication start request signal from a mobile station UE located in the macro cell #A corresponding to the area, it may be configured not to reject a communication start request signal related to an emergency call, a priority call, or an incoming call Good.
  • the transmission unit 14 is configured to transmit various signals to the mobile station UE, the mobility management node MME, the gateway device S-GW, and the like.
  • the transmission unit 14 is in the presence or communication (DRX state) with respect to the mobile station UE in the macro cell #A corresponding to the coverage area of the phantom cells # 1 to # 14 or the phantom cells # 1 to # 14. In some cases, it is configured to transmit grant instruction information indicating whether or not the identification information of the phantom cell should be given to the communication start request signal.
  • the transmission unit 14 may be configured to transmit the above grant instruction information to the mobile station UE via the macro cell #A.
  • the transmission part 14 may be comprised so that the above-mentioned provision instruction information may be transmitted with respect to the mobile station UE using alerting
  • the determining unit 13 is configured to determine whether to reject the communication start request signal based on the phantom cell identification information given to the communication start request signal received by the receiving unit 12. It may be.
  • the transmission unit 14 may be configured to transmit a communication rejection signal to the mobile station UE.
  • the functions of the management unit 11 and the determination unit 13 may be included in the mobility management node MME instead of the radio base station eNB.
  • the mobile station UE includes a receiving unit 21 and a transmitting unit 22.
  • the receiving unit 21 is configured to receive various signals from the radio base station eNB # A and the like, and the transmitting unit 22 is configured to transmit various signals to the radio base station eNB # A and the like. Yes.
  • the receiving unit 21 is configured to receive the above-described grant instruction information from the radio base station eNB # A.
  • the reception unit 21 when the reception unit 21 receives a predetermined signal at a predetermined timing, for example, in a phantom cell in the service area or in communication (DRX state), the reception unit 21 receives the above-described assignment instruction information from the macro cell #A. It may be configured.
  • the receiving unit 21 may be configured to receive the above-described assignment instruction information via broadcast information or individual signals.
  • the transmission unit 22 transmits a communication start request to which identification information of the phantom cell is added via the plurality of phantom cells # 1 to # 14 or the macro cell #A based on the assignment instruction information received by the receiving unit 21. It is configured to transmit a signal.
  • the radio base station eNB # A uses the broadcast information or the individual signal to notify the above-described grant instruction to the mobile station UE that is in or in communication with the macro cell #A in step S1001. Send information.
  • step S1011 the phantom cell # 6 / # 7/9 / # 12 Via the, a communication start request signal including identification information (PCI, CGI, etc.) of phantom cells # 6 / # 7/9 / # 12 is transmitted.
  • PCI identification information
  • step S1012 the radio base station eNB # A determines whether to reject the communication start request signal based on the phantom cell identification information given to the communication start request signal.
  • the radio base station eNB # A When it is determined that the radio base station eNB # A rejects the communication start request signal, the radio base station eNB # A transmits a communication rejection signal to the mobile station UE in step S1013.
  • the radio base station eNB, the mobility management node MME, and the like manage the coverage area of the phantom cell # 6 / # 7/9 / # 12 to be regulated, In the phantom cell # 6 / # 7/9 / # 12, it is configured to be able to reject a communication start request signal from a mobile station UE that is in service or in communication (DRX state). Can be efficiently used, and communication restrictions in the phantom cells # 1 to # 14 can be realized while preventing an increase in processing load in the mobile station UE.
  • the first feature of the present embodiment is that a phantom cell group including a plurality of phantom cells # 1 to # 14 and a macro cell #A having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • the mobile communication system includes a phantom cell # 6 / # 7/9 / # 12 that is a controlled phantom cell in the phantom cell group, and is configured to manage the phantom cell # 6 / From the mobile station UE located in # 7/9 / # 12 or from the mobile station UE located in the macro cell #A corresponding to the coverage area of the phantom cell # 6 / # 7/9 / # 12 to be regulated
  • the gist is that the communication start request signal is rejected.
  • a second feature of the present embodiment is that a phantom cell group including a plurality of phantom cells # 1 to # 14 and a macro cell #A having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • a radio base station eNB # A used in a mobile communication system provided, and configured to manage a coverage area of phantom cells # 6 / # 7/9 / # 12 to be restricted in a phantom cell group Corresponds to the management area 11 and the coverage area of the mobile station UE located in the restricted phantom cell # 6 / # 7/9 / # 12 or the restricted phantom cell # 6 / # 7/9 / # 12 And a determination unit 13 configured to reject a communication start request signal from the mobile station UE located in the macro cell #A.
  • the determination unit 13 includes the mobile station UE located in the restricted phantom cell # 6 / # 7/9 / # 12 or the restricted phantom cell # 6 / # 7. Even if it is a communication start request signal from the mobile station UE located in the macro cell #A corresponding to the coverage area of / 9 / # 12, the communication start request signal related to the emergency call, priority call or incoming call is not rejected. It may be configured as follows.
  • the above-described mobile station UE is in service or in communication with the phantom cells # 1 to # 14 or the macro cell #A corresponding to the coverage area of the phantom cells # 1 to # 14.
  • the transmission unit 14 is configured to transmit grant instruction information indicating whether or not to add the identification information of the phantom cell to the communication start request signal. Based on the phantom cell identification information given to the start request signal, it may be configured to determine whether to reject the communication start request signal.
  • the radio base station eNB can easily determine from which phantom cell the received communication start request signal is a communication start request signal.
  • the transmission unit 14 may be configured to transmit the above-described grant instruction information to the above-described mobile station UE via the macro cell #A.
  • radio resources in phantom cells # 1 to # 14 can be used effectively.
  • the transmission unit 14 may be configured to transmit the above-described grant instruction information to the above-described mobile station UE using broadcast information or an individual signal.
  • the above-described assignment instruction information can be reliably notified to the mobile station UE.
  • a third feature of the present embodiment is that a phantom cell group including a plurality of phantom cells # 1 to # 14 and a macro cell #A having a coverage area at least partially overlapping or adjacent to the coverage area of the phantom cell group.
  • a mobile station UE used in the mobile communication system provided, which corresponds to the coverage area of phantom cells # 1 to # 14 or phantom cells # 1 to # 14 via broadcast information or individual signals from the macro cell #A.
  • a receiving unit 21 configured to receive grant instruction information indicating whether or not to add the identification information of the phantom cell to the communication start request signal when the macro cell #A is in service or in communication; Based on the above-described assignment instruction information, the phantom cells # 1 to # 14 or the macro cell #A And gist to a transmission unit 22 configured to transmit a communication start request signal in which the identification information is assigned to the phantom cells.
  • the operations of the mobile station UE and the radio base station eNB # A described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. Also good.
  • the software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, Hard Disk, and Removable ROM).
  • RAM Random Access Memory
  • flash memory ROM (Read Only Memory)
  • EPROM Erasable Programmable ROM
  • EEPROM Electrically Erasable and Programmable, Removable ROM, Hard Disk, and Removable ROM.
  • it may be provided in a storage medium of an arbitrary format such as a CD-ROM.
  • the storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE or the radio base station eNB # A. Further, the storage medium and the processor may be provided as a discrete component in the mobile station UE or the radio base station eNB # A.
  • a mobile communication system a radio base, and a radio base station that can efficiently utilize radio resources and prevent communication load in a phantom cell while preventing an increase in processing load in the mobile station UE.
  • Stations and mobile stations can be provided.
  • eNB # A radio base station UE ... mobile station 11 ... management unit 12, 21 ... reception unit 13 ... determination unit 14, 22 ... transmission unit

Abstract

La présente invention régule des communications dans une cellule fantôme tout en prévenant une augmentation de la charge de traitement dans une station mobile (UE) et en utilisant efficacement des ressources sans fil. Une station de base sans fil (eNB#A) selon l'invention est configurée de manière à gérer la zone de couverture d'une cellule fantôme (#6/#7/#9/#12) qui est le sujet de régulation parmi un groupe de cellules fantômes comprenant une pluralité de cellules fantômes (#1-#14), et est configurée de manière à rejeter un signal de requête de démarrage de communication en provenance d'une station mobile (UE) dans la plage de couverture d'une macrocellule (#A) correspondant à la zone de couverture de la cellule fantôme (#6/#7/#9/#12) qui est le sujet de régulation ou d'une station mobile (UE) dans la zone de couverture de la cellule fantôme (#6/#7/#9/#12) qui est le sujet de régulation.
PCT/JP2013/073021 2012-09-14 2013-08-28 Système de communication mobile, station de base sans fil et station mobile WO2014042009A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012203046A JP2014060505A (ja) 2012-09-14 2012-09-14 移動通信システム、無線基地局及び移動局
JP2012-203046 2012-09-14

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WO2014042009A1 true WO2014042009A1 (fr) 2014-03-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057602A1 (fr) * 2007-10-29 2009-05-07 Ntt Docomo, Inc. Système de communication mobile, station de base nominale et station mobile
JP2010206619A (ja) * 2009-03-04 2010-09-16 Nec Corp 管理装置、通信システム、制御方法及びプログラム
WO2010122842A1 (fr) * 2009-04-23 2010-10-28 日本電気株式会社 Système de communication sans fil dans lequel un appareil de station de base diffuse des informations d'identification sur un relais
JP2012513154A (ja) * 2008-12-19 2012-06-07 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ユーザ装置とアクセスポイントとの間の関連付けの作成のための方法および装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009057602A1 (fr) * 2007-10-29 2009-05-07 Ntt Docomo, Inc. Système de communication mobile, station de base nominale et station mobile
JP2012513154A (ja) * 2008-12-19 2012-06-07 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ユーザ装置とアクセスポイントとの間の関連付けの作成のための方法および装置
JP2010206619A (ja) * 2009-03-04 2010-09-16 Nec Corp 管理装置、通信システム、制御方法及びプログラム
WO2010122842A1 (fr) * 2009-04-23 2010-10-28 日本電気株式会社 Système de communication sans fil dans lequel un appareil de station de base diffuse des informations d'identification sur un relais

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NTT DOCOMO, INC.: "Requirements, Candidate Solutions & Technology Roadmap for LTE Rel-12 Onward RWS-120010", RWS-120010, 3GPP, 12 June 2012 (2012-06-12) *

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