WO2010018822A1 - 移動通信方法、交換局及び移動局 - Google Patents
移動通信方法、交換局及び移動局 Download PDFInfo
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- WO2010018822A1 WO2010018822A1 PCT/JP2009/064177 JP2009064177W WO2010018822A1 WO 2010018822 A1 WO2010018822 A1 WO 2010018822A1 JP 2009064177 W JP2009064177 W JP 2009064177W WO 2010018822 A1 WO2010018822 A1 WO 2010018822A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/06—Registration at serving network Location Register, VLR or user mobility server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/12—Mobility data transfer between location registers or mobility servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to a mobile communication method, an exchange station, and a mobile station.
- E-UTRAN Evolved Universal Terrestrial Radio Access Network
- EPC Evolved Packet Core
- ISR A technology called “Idle state Signaling Reduction” is applicable.
- the mobile station UE registers a location in the WCDMA switching center SGSN in a cell (cell in RA # 1) subordinate to the WCDMA mobile communication system, and the WCDMA system A bearer is set up through the exchange SGSN and the gateway device S-GW.
- the location registration state W for the WCDMA mobile communication system is Since it is “Update”, the mobile station UE does not need to perform location registration in the WCDMA switching center SGSN.
- the location registration for the LTE mobile communication system is performed. Since the state L is “Update”, the mobile station UE does not need to perform location registration in the LTE switching center MME.
- the mobile station UE is in the cell under the mobile communication system of WCDMA system (cell in RA # 1).
- the bearer state B in the mobile station UE, the WCDMA exchange SGSN and the gateway device S-GW is changed from “#a” to “#b”.
- the bearer state B in the MME remains “#a”, and the bearer state becomes asynchronous.
- the mobile station UE sets the location registration state L for the LTE mobile communication system to “Update needed” indicating that the location registration needs to be performed in the LTE switching center MME.
- the present invention has been made in view of the above-described problems, and unnecessary location registration is performed even when a bearer is activated, modified, or deleted in a mobile communication system to which ISR is applied. It is an object of the present invention to provide a mobile communication method, an exchange station, and a mobile station that can suppress the interference.
- a first feature of the present invention is a mobile communication method, in which the mobile station is registered in the location of the first communication system switching station and the second communication system switching station in the first communication system.
- an exchange station of a first communication method wherein the mobile station is registered in the location of the exchange station of the first communication method and the exchange station of the second communication method.
- the mobile station is configured to perform synchronization processing on the bearer state of the mobile station with the exchange station of the second communication method.
- a notification unit configured to notify the mobile station that the synchronization process has been performed.
- a third feature of the present invention is a mobile station, which is registered in the first communication system exchange station and the second communication system exchange station, and is subordinate to the first communication system mobile communication system. Even when the bearer state is changed in the cell, a notification indicating that the synchronization process has been performed for the bearer state with the exchange station of the second communication method from the exchange station of the first communication method When the mobile communication system of the first communication method is moved to a cell subordinate to the mobile communication system of the second communication method, the location registration is not performed in the exchange station of the second communication method.
- the gist is to include a location registration processing unit configured as described above.
- unnecessary location registration can be suppressed even when a bearer is activated, modified, or deleted in a mobile communication system to which ISR is applied.
- a mobile communication method, an exchange station, and a mobile station can be provided.
- a gateway apparatus P-GW (PDN-Gateway), a gateway apparatus S-GW (Serving-Gateway), a WCDMA switching center SGSN, and an LTE switching center MME are provided. Yes.
- the present specification describes a case where the “WCDMA scheme” is “first communication scheme” and the “LTE scheme” is “second communication scheme”. It is not limited.
- the same bearer state B (#a) is managed between the mobile station UE, the WCDMA switching center SGSN, the LTE switching center MME, and the gateway device S-GW, that is, the bearer state B Are synchronized.
- the WCDMA exchange SGSN and the LTE exchange MME include a bearer control unit 11, a bearer state management unit 12, a synchronization processing unit 13, and a notification unit 14. .
- the bearer control unit 11 may be configured to set (activate) a new bearer in a state where no bearer is set in response to a request from each mobile station UE, It may be configured to disconnect (delete) a bearer that has already been set, or may be configured to change (correct) the connection state of a bearer that has already been set.
- the bearer state management unit 12 is configured to manage the bearer state B of each mobile station UE. For example, the bearer state management unit 12 manages, as the bearer state B of each mobile station UE, the IP address assigned to each mobile station UE, the connection destination APN, the QOS, and the gateway device through which the bearer is related. is doing. Moreover, the bearer state management unit 12 may manage the number of bearers set in the mobile station UE as the bearer state B.
- the synchronization processing unit 13 is a cell (cell in RA # 1) subordinate to the WCDMA mobile communication system in a state where the mobile station UE is registered in the location of the WCDMA mobile switching center SGSN and the LTE mobile switching center MME.
- the bearer state B is changed, synchronization processing is performed on the bearer state B of the mobile station UE with the LTE switching center MME.
- the synchronization processing unit 13 may be configured not to perform the above-described synchronization processing when the mobile station UE changes the bearer state B and the number of bearers becomes zero.
- the synchronization processing unit 13 is configured to perform the above-described synchronization processing when receiving a location registration signal from the mobile station UE.
- the notification unit 14 is configured to notify the mobile station UE that the above-described synchronization processing has been performed.
- the mobile station UE includes a bearer state management unit 21, a location registration state management unit 22, a bearer control unit 23, and a location registration processing unit 24.
- the bearer state management unit 21 is configured to manage the bearer state B of the mobile station UE.
- the location registration state management unit 22 sets “Update needed” in the location registration state L for the LTE mobile communication system when it is necessary to register the location with the LTE switching center MME.
- “Updated” is set in the location registration state L for the LTE mobile communication system.
- the location registration state management unit 22 receives the above-described notification, and then the location registration state W for the WCDMA mobile communication system or the LTE mobile communication. It is not set in the location registration state L for the system that it is necessary to register the location in the WCDMA switching center SGSN or the LTE switching center MME, that is, the location registration state W or LTE scheme for the WCDMA mobile communication system “Update needed” is not set in the location registration state L for the mobile communication system (ie, the location registration state W for the WCDMA mobile communication system or the location registration state L for the LTE mobile communication system is “Updated”). It is configured to be left).
- step S1001 when the mobile station UE performs bearer activation, correction, or deletion in a cell (cell in RA # 1) under the WCDMA mobile communication system, in step S1002, the bearer state B in the mobile station UE, the gateway device S-GW, and the WCDMA switching center SGSN is changed from “#a” to “#b”.
- the mobile station UE Since the mobile station UE receives the above notification, the mobile station UE does not change the location registration state L for the LTE mobile communication system even though the bearer state B is changed (that is, the LTE mobile communication system).
- the location registration state L for the data remains “Updated”).
- the WCDMA mobile switching center SGSN or the LTE mobile switching center MME is a cell (cell in RA # 1) subordinate to a WCDMA mobile communication system or an LTE mobile communication system. It is determined whether or not the bearer state B of the mobile station UE located in the subordinate cell (cell in TA # 1 or TA # 2) has been changed.
- step S102 the WCDMA switching center SGSN or the LTE switching center MME has the number of bearers after the change in the mobile station UE being 0. It is determined whether or not it is a book.
- step S103 the WCDMA mobile switching center SGSN or the LTE mobile switching center MME synchronizes with the LTE mobile switching center MME or the WCDMA mobile switching center SGSN with respect to the bearer state B of the mobile station UE. Process.
- step S104 the WCDMA exchange SGSN or the LTE exchange MME notifies the mobile station UE that the above-described synchronization processing has been performed.
- step S201 the mobile station UE is registered in the location of the WCDMA mobile switching center SGSN and the LTE mobile switching center MME. 1) or cells under the LTE mobile communication system (cells in TA # 1 or TA # 2), whether or not the bearer state B has been changed is determined.
- step S202 the mobile station UE sends a notification indicating that the above-described synchronization processing has been performed from the WCDMA exchange SGSN and the LTE exchange MME. It is determined whether or not it has been received.
- a WCDMA exchange SGSN and LTE are used. Synchronization processing for bearer state B is performed with the mobile switching center MME, and when such synchronization processing is performed, the mobile station UE transmits a cell (RA # 1) subordinate to the WCDMA mobile communication system. Even if the cell moves from a cell in the cell to a cell under the LTE mobile communication system (a cell in TA # 1 or TA # 2), it is not necessary to perform location registration, so unnecessary location registration is suppressed. can do.
- the mobile station UE located in the cell under the WCDMA mobile communication system
- the number of bearers becomes zero
- the mobile station UE Will be detached.
- the first feature of the present embodiment is a mobile communication method, in which a mobile station UE registers a location in a switching center SGSN in the WCDMA system (first communication system) and an exchange station MME in the LTE system (second communication system). In a state where the bearer state B is changed in a cell under the WCDMA mobile communication system (cell in RA # 1), between the WCDMA switching center SGSN and the LTE switching center MME.
- the process A for performing the synchronization process for the bearer state B of the mobile station UE, and the process B for notifying the mobile station UE that the WCDMA switching center SGSN has performed the synchronization process Even when the mobile station UE changes the bearer state B, the mobile station UE receives the notification from the cell (cell in RA # 1) subordinate to the WCDMA mobile communication system. When moved to the cell under the control mobile communication system (TA # 1 or TA # cells in 2), and subject matter that no location registration to the switching center MME of the LTE scheme.
- the mobile station UE manages a location registration state L indicating whether or not location registration with the LTE switching center MME is necessary, and the mobile station UE performs LTE mobile communication.
- Even when the mobile station UE has changed the bearer state B it is necessary to register the location in the location registration state L in the LTE switching center MME when the above notification is received. It is not necessary to set “Update needed” indicating that there is.
- the second feature of the present embodiment is a WCDMA switching center SGSN, where the mobile station UE is registered in the WCDMA switching center SGSN and the LTE switching center MME.
- the bearer state B is changed in a cell under the mobile communication system (cell in RA # 1), synchronization processing is performed for the bearer state B of the mobile station UE with the LTE switching center MME.
- the gist of the invention is that it includes a synchronization processing unit 13 configured and a notification unit 14 configured to notify the mobile station UE that the synchronization processing has been performed.
- the system further comprises a location registration state management unit 22 configured to manage a location registration state L indicating whether or not location registration with the LTE switching center MME is necessary.
- a location registration state management unit 22 configured to manage a location registration state L indicating whether or not location registration with the LTE switching center MME is necessary.
- the registration processing unit 24 moves to a cell under the LTE mobile communication system (a cell in TA # 1 or TA # 2), the registration processing unit 24 registers the location with the LTE switching center MME according to the location registration state L.
- the location registration state management unit 22 is configured to determine whether or not the location registration state management unit 22 has received the above notification even when the bearer state B is changed.
- the gist is that it is configured not to set in L the location registration in the LTE switching center MME.
- Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
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Abstract
Description
図1乃至3を参照して、本発明の第1の実施形態に係る移動通信システムの構成について説明する。
図4乃至図6を参照して、本発明の第1の実施形態に係る移動通信システムの動作について説明する。
本発明の第1の実施形態に係る移動通信システムによれば、ISRが適用されている移動通信システムにおいて、ベアラの起動や修正や削除が行われた場合に、WCDMA方式の交換局SGSNとLTE方式の交換局MMEとの間で、ベアラ状態Bについての同期処理が行われ、かかる同期処理が行われた場合には、移動局UEは、WCDMA方式の移動通信システム配下のセル(RA#1内のセル)からLTE方式の移動通信システム配下のセル(TA#1又はTA#2内のセル)に移動した場合であっても、位置登録を行う必要が無いため、不要な位置登録を抑制することができる。
Claims (7)
- 移動局が、第1通信方式の交換局及び第2通信方式の交換局に位置登録している状態で、該第1通信方式の移動通信システム配下のセルにおいて、ベアラ状態を変更した場合に、該第1通信方式の交換局と該第2通信方式の交換局との間で、該移動局のベアラ状態について同期処理を行う工程Aと、
前記第1通信方式の交換局が、前記移動局に対して、前記同期処理を行った旨を通知する工程Bとを有し、
前記移動局は、前記ベアラ状態を変更した場合であっても、前記通知を受信した場合には、前記第1通信方式の移動通信システム配下のセルから前記第2通信方式の移動通信システム配下のセルに移動した際に、該第2通信方式の交換局に位置登録しないことを特徴とする移動通信方法。 - 前記移動局が、前記第2通信方式の交換局に位置登録する必要の有無を示す位置登録状態を管理する工程と、
前記移動局が、前記第2通信方式の移動通信システム配下のセルに移動した際に、前記位置登録状態に応じて、該第2通信方式の交換局に位置登録すべきであるか否かについて判断する工程とを更に有し、
前記移動局が、前記ベアラ状態を変更した場合であっても、前記通知を受信した場合には、前記位置登録状態に、前記第2通信方式の交換局に位置登録する必要があると設定しないことを特徴とする請求項1に記載の移動通信方法。 - 前記工程Aにおいて、前記移動局が、前記ベアラ状態を変更して、ベアラの本数が0本になった場合には、前記同期処理が行われないことを特徴とする請求項1に記載の移動通信方法。
- 第1通信方式の交換局であって、
移動局が、前記第1通信方式の交換局及び第2通信方式の交換局に位置登録している状態で、該第1通信方式の移動通信システム配下のセルにおいて、ベアラ状態を変更した場合に、該第2通信方式の交換局との間で、該移動局のベアラ状態について同期処理を行うように構成されている同期処理部と、
前記移動局に対して、前記同期処理を行った旨を通知するように構成されている通知部とを具備することを特徴とする交換局。 - 前記同期処理部は、前記移動局が、前記ベアラ状態を変更して、ベアラの本数が0本になった場合には、前記同期処理を行わないように構成されていることを特徴とする請求項4に記載の交換局。
- 第1通信方式の交換局及び第2通信方式の交換局に位置登録している状態で、該第1通信方式の移動通信システム配下のセルにおいて、ベアラ状態を変更した場合であっても、該第1通信方式の交換局から、該第2通信方式の交換局との間で前記ベアラ状態について同期処理が行われた旨を示す通知を受信した場合には、該第1通信方式の移動通信システム配下のセルから該第2通信方式の移動通信システム配下のセルに移動した際に、該第2通信方式の交換局に位置登録しないように構成されている位置登録処理部を具備することを特徴とする移動局。
- 前記第2通信方式の交換局に位置登録する必要の有無を示す位置登録状態を管理するように構成されている位置登録状態管理部を更に具備し、
前記位置登録処理部は、前記第2通信方式の移動通信システム配下のセルに移動した際に、前記位置登録状態に応じて、該第2通信方式の交換局に位置登録すべきであるか否かについて判断するように構成されており、
前記位置登録状態管理部は、前記ベアラ状態を変更した場合であっても、前記通知を受信した場合には、前記位置登録状態に、前記第2通信方式の交換局に位置登録する必要があると設定しないように構成されていることを特徴とする請求項6に記載の移動局。
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US13/058,305 US20110206005A1 (en) | 2008-08-11 | 2009-08-11 | Mobile communication method, mobile switching center, and mobile station |
KR1020117003306A KR20110044865A (ko) | 2008-08-11 | 2009-08-11 | 이동통신방법, 교환국 및 이동국 |
EP09806713A EP2317786A1 (en) | 2008-08-11 | 2009-08-11 | Mobile communication method, exchange, and mobile station |
CN2009801313778A CN102119540B (zh) | 2008-08-11 | 2009-08-11 | 移动通信方法、交换台和移动台 |
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- 2008-08-11 JP JP2008207508A patent/JP5004899B2/ja not_active Expired - Fee Related
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2009
- 2009-08-11 CN CN2009801313778A patent/CN102119540B/zh not_active Expired - Fee Related
- 2009-08-11 WO PCT/JP2009/064177 patent/WO2010018822A1/ja active Application Filing
- 2009-08-11 KR KR1020117003306A patent/KR20110044865A/ko not_active Application Discontinuation
- 2009-08-11 EP EP09806713A patent/EP2317786A1/en not_active Withdrawn
- 2009-08-11 US US13/058,305 patent/US20110206005A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2008072687A1 (ja) * | 2006-12-15 | 2008-06-19 | Sharp Kabushiki Kaisha | 無線通信システム及び無線伝送路制御方法 |
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Publication number | Publication date |
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EP2317786A1 (en) | 2011-05-04 |
CN102119540A (zh) | 2011-07-06 |
JP5004899B2 (ja) | 2012-08-22 |
JP2010045551A (ja) | 2010-02-25 |
US20110206005A1 (en) | 2011-08-25 |
CN102119540B (zh) | 2013-12-18 |
KR20110044865A (ko) | 2011-05-02 |
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