WO2012046831A1 - ネットワーク装置、基地局及び移動局制御方法 - Google Patents

ネットワーク装置、基地局及び移動局制御方法 Download PDF

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Publication number
WO2012046831A1
WO2012046831A1 PCT/JP2011/073178 JP2011073178W WO2012046831A1 WO 2012046831 A1 WO2012046831 A1 WO 2012046831A1 JP 2011073178 W JP2011073178 W JP 2011073178W WO 2012046831 A1 WO2012046831 A1 WO 2012046831A1
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WIPO (PCT)
Prior art keywords
mobile station
communication system
information
radio communication
neighboring
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2011/073178
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English (en)
French (fr)
Japanese (ja)
Inventor
健一郎 青柳
由紀子 高木
中村　雄一郎
岡本　健志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
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 NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to US13/878,038 priority Critical patent/US20130267235A1/en
Priority to EP11830762.8A priority patent/EP2627120A1/en
Publication of WO2012046831A1 publication Critical patent/WO2012046831A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • Non-Patent Document 2 the number of small base stations (for example, HeNB) installed by mobile users, such as femtocells, is increasing (for example, see Non-Patent Document 2).
  • 3GPP TS 24.301 Technical Specification Group Core Core Network and Terminals; Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3 3GPP TS 22.220, Service requirements for Home NodeBs (UMTS) and Home eNodeBs (LTE)
  • NAS Non-Access-Stratum
  • EPS Evolved Packet System
  • Stage 3 3GPP TS 22.220 Service requirements for Home NodeBs (UMTS) and Home eNodeBs (LTE)
  • the neighboring cell information table (Neighbor Relation Table: NRT) of the mobile station is managed in network devices such as RNC (Radio Network Controller) and SGSN (Serving GPRS Support Node).
  • RNC Radio Network Controller
  • SGSN Serving GPRS Support Node
  • a first feature of the present invention is that a mobile station connectable to at least one of a first radio communication system (LTE system 10) and a second radio communication system (3G system 20) different from the first radio communication system.
  • Mobile station 301 is a network device (RNC 210) for controlling mobility, and the neighbor cell information table (NRT500) based on the mobile station transitioning from the first radio communication system to the second radio communication system )
  • NRT storage unit 211 To store information on neighboring cells of the mobile station (NRT storage unit 211), and based on the neighboring cell information stored in the neighboring cell information table, the mobile station transmits the second wireless communication to the mobile station.
  • a mobile station control unit (mobile station control unit 213) for performing mobility control from the system to the first wireless communication system, and the storage unit And gist storing a trigger for erasing information Le.
  • the storage unit may include at least an effective time of the neighboring cell or an effective area where application of the information of the neighboring cell is effective as the information on the neighboring cell.
  • a second feature of the present invention is a base station that controls mobility of a mobile station connectable to at least one of a first wireless communication system and a second wireless communication system different from the first wireless communication system.
  • a storage unit for storing information on neighboring cells of the mobile station in a neighboring cell information table based on a transition of the mobile station from the first wireless communication system to the second wireless communication system; and the neighboring cell information
  • a mobile station controller configured to perform mobility control of the mobile station from the second radio communication system to the first radio communication system based on information on the neighboring cells stored in a table,
  • the gist is to store a trigger for erasing information on neighboring cells of the mobile station from the neighboring cell information table.
  • a third feature of the present invention is a mobile station control method for controlling mobility of a mobile station connectable to at least one of a first radio communication system and a second radio communication system different from the first radio communication system. And storing the neighboring cell information of the mobile station in a neighboring cell information table based on the mobile station transitioning from the first wireless communication system to the second wireless communication system; A step of performing movement control of the mobile station from the second radio communication system to the first radio communication system based on the information of the neighbor cell stored in the information table; and the movement from the neighbor cell information table And a step of storing a trigger for erasing information of neighboring cells of the station.
  • the LTE system 10 includes an LTE core network 11, HeNBs 111 to 113, and an MME 120 (Mobility Management Entity).
  • the 3G system 20 includes a 3G core network 21, an RNC 210, a BTS 220, and an SGSN 230 (Serving GPRS Support Node).
  • HeNBs 111 to 113 are small base stations that can be installed by users of mobile stations 301 and 302, and form cells C11 to C13, respectively.
  • the BTS 220 is a general base station for public communication installed by a mobile communication carrier, and forms a macro cell C1.
  • the NRT storage unit 211 stores information on neighboring cells of the mobile station 301 in the NRT 500 based on the transition of the mobile station 301 from the LTE system 10 to the 3G system 20. In addition, the NRT storage unit 211 stores a trigger (timing) for deleting information on neighboring cells of the mobile station 301 from the NRT 500.
  • the NRT storage unit 211 stores information on neighboring cells necessary for the mobile station 301 that has fallen back to the 3G system 20 to return from the 3G system 20 to the LTE system 10. Specifically, the NRT storage unit 211 stores frequency information of cells C11 to C13, and information elements (IE) such as PCI or Cell identity.
  • the information element may include an IE that specifies a wireless communication system (RAT) that temporarily waits for priority, such as a Subscriber Profile ID, and an S1AP Cause.
  • RAT wireless communication system
  • the NRT storage unit 211 can include an effective area in which application of the effective time of the neighboring cell or the information of the neighboring cell is effective as the information of the neighboring cell.
  • Effective time is the time for which the neighboring cell is valid as a transition destination candidate. For example, when it is detected that at least one mobile station has accessed the HeNB, 10 minutes from the detection of the access is expected as a time when the mobile station may move to the HeNB again.
  • the “effective area” is a geographical area that is selected as a candidate for the neighboring cell when the mobile station 301 is transitioned to another cell. For example, when it is detected that one mobile station has accessed the HeNB, based on the location information of the HeNB, the HeNB that has accessed the NRT 500 of a cell belonging to an area where access to the HeNB is expected The information of is reflected.
  • the mobile station control unit 213 generates control information for returning the mobile station 301 from the 3G system 20 to the LTE system 10 based on information on neighboring cells stored in the NRT 500.
  • FIG. 4 shows an example of NRT500.
  • the NRT 500 includes information (cells C11 to C13) of neighboring cells of the mobile station 301 relayed from the MME 120.
  • guidance to the cells formed by the HeNBs 111 to 113 can be realized while avoiding the burden of constantly managing the NRTs of the HeNBs 111 to 113 on the 3G system 20 side (RNC 210).
  • the neighbor cell information may include the valid time of the neighbor cell or the valid area where the application of the neighbor cell information is valid. For this reason, the cell to which the mobile station 301 should return can be controlled more precisely.
  • the CSFB procedure from the LTE system 10 to the 3G system 20 may be the redirection to the 3G system 20 or PS HANDOVER.
  • the RNC 210 stores the NRT 500 and controls the mobility of the mobile station 301.
  • the functions of the NRT storage unit 211 and the mobile station control unit 213 may be provided in the MME 120 or the BTS 220.
  • a network that realizes transition of the mobile station to a neighboring cell while suppressing an increase in processing load related to the neighboring cell information table
  • NRT Neighbor cell information table

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2011/073178 2010-10-07 2011-10-07 ネットワーク装置、基地局及び移動局制御方法 Ceased WO2012046831A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/878,038 US20130267235A1 (en) 2010-10-07 2011-10-07 Network device, base station, and mobile station control method
EP11830762.8A EP2627120A1 (en) 2010-10-07 2011-10-07 Network apparatus, base station and mobile station control method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-227616 2010-10-07
JP2010227616A JP5478455B2 (ja) 2010-10-07 2010-10-07 ネットワーク装置及び移動局制御方法

Publications (1)

Publication Number Publication Date
WO2012046831A1 true WO2012046831A1 (ja) 2012-04-12

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US (1) US20130267235A1 (https=)
EP (1) EP2627120A1 (https=)
JP (1) JP5478455B2 (https=)
WO (1) WO2012046831A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103476077A (zh) * 2013-09-11 2013-12-25 中国联合网络通信集团有限公司 网络附着方法及设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104811980B (zh) 2011-07-26 2019-03-01 华为技术有限公司 邻区关系的建立方法、装置及系统
WO2014121478A1 (zh) * 2013-02-07 2014-08-14 华为技术有限公司 获取网络节点相邻关系的方法、装置和网络设备

Citations (3)

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JP2003259433A (ja) * 2002-02-28 2003-09-12 Sony Corp 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
WO2010006693A1 (en) * 2008-06-30 2010-01-21 Alcatel Lucent Method for transferring information between networks of different technology types
JP2010227616A (ja) 2002-05-02 2010-10-14 Becton Dickinson & Co 安全採取アセンブリ

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Publication number Priority date Publication date Assignee Title
DE60211167T2 (de) * 2002-10-17 2006-09-07 Motorola, Inc., Schaumburg Verfahren und Vorrichtung zum Weiterreichen eines Teilnehmerendgeräts zwischen zellulären Kommunikationsnetzen
US20080188223A1 (en) * 2007-02-07 2008-08-07 Nokia Corporation Method, a system and a network element for performing a handover of a mobile equipment
JP5504623B2 (ja) * 2008-12-16 2014-05-28 富士通モバイルコミュニケーションズ株式会社 移動無線端末および通信処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003259433A (ja) * 2002-02-28 2003-09-12 Sony Corp 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
JP2010227616A (ja) 2002-05-02 2010-10-14 Becton Dickinson & Co 安全採取アセンブリ
WO2010006693A1 (en) * 2008-06-30 2010-01-21 Alcatel Lucent Method for transferring information between networks of different technology types

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103476077A (zh) * 2013-09-11 2013-12-25 中国联合网络通信集团有限公司 网络附着方法及设备

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JP2012084990A (ja) 2012-04-26
US20130267235A1 (en) 2013-10-10
EP2627120A1 (en) 2013-08-14
JP5478455B2 (ja) 2014-04-23

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