WO2013001612A1 - 通信制御方法及びホーム基地局 - Google Patents
通信制御方法及びホーム基地局 Download PDFInfo
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- WO2013001612A1 WO2013001612A1 PCT/JP2011/064840 JP2011064840W WO2013001612A1 WO 2013001612 A1 WO2013001612 A1 WO 2013001612A1 JP 2011064840 W JP2011064840 W JP 2011064840W WO 2013001612 A1 WO2013001612 A1 WO 2013001612A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- 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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- 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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
- H04W36/125—Reselecting a serving backbone network switching or routing node involving different types of service backbones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/22—Manipulation of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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- 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
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- 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]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Definitions
- the present invention relates to a communication control method and a home base station in a mobile communication system.
- 3GPP 3rd Generation Partnership Project
- LTE Advanced which is an advanced LTE (Long Term Evolution)
- 3GPP Release 10 defines a LIPA (Local Internet Protocol Access) function by a home base station (see Non-Patent Documents 1 and 2).
- the home base station is a small base station provided in a residence or a company, and may be referred to as a femtocell base station.
- LIPA is a LIPA connection (LIPA PDN connection) between a user terminal and a local device in the same residential (or company) IP network as the user terminal, but not via the operator's core network. ) To establish communication with the LIPA connection. Since LIPA does not flow user data to the core network, the traffic load on the core network can be reduced.
- 3GPP Release 10 does not support LIPA connection mobility. For this reason, when a user terminal having a LIPA connection moves from the home base station to another base station, the connection is always released. Therefore, when the user terminal communicates again with the local device that has been connected, communication is interrupted because reconnection processing is required.
- the current specification stipulates that when a user terminal having a LIPA connection moves from the home base station to another base station, the LIPA connection is always released, and thus the problem of not being able to support the mobility of the LIPA connection. There is.
- an object of the present invention is to provide a communication control method and a home base station that can support the mobility of a LIPA connection.
- a first feature of a communication control method is a communication control method in a home base station (source HeNB 200-1) that supports LIPA defined by the 3GPP standard, and a user terminal (UE100) having a LIPA connection
- a home base station source HeNB 200-1
- UE100 user terminal
- step S103 information indicating that the user terminal has the LIPA connection is included in a handover request and transmitted to the target base station.
- the gist of the invention includes a step (steps S106 and S107) of continuing the handover procedure without releasing the LIPA connection.
- a first feature of a home base station is a home base station (source HeNB 200-1) that supports LIPA defined by the 3GPP standard, and the home base station for a user terminal (UE 100) having a LIPA connection.
- source HeNB 200-1 that supports LIPA defined by the 3GPP standard
- UE 100 user terminal
- LIPA connection When starting a handover procedure from a station to a target base station, information indicating that the user terminal has the LIPA connection is included in a handover request and transmitted to the target base station, and the target base station transmits the handover request.
- the gist of the invention is that, if permitted, the handover procedure is continued without releasing the LIPA connection.
- a second feature of the communication control method according to the present invention is a communication control method in the home base station (target HeNB 200-2), which is another home base station (source HeNB 200-) that supports LIPA defined by the 3GPP standard. 1), a step of receiving a handover request including information indicating that the user terminal (UE 100) has a LIPA connection (step S103), and according to the home base station supporting the LIPA And a step of permitting the handover request from the other home base station (step S105).
- the second feature of the home base station according to the present invention is the home base station (target HeNB 200-2), which supports LIPA (Local Internet Protocol Access) defined by 3GPP (3rd Generation Partnership Project) standard. That the home base station (source HeNB 200-1) receives a handover request including information indicating that the user terminal (UE 100) has a LIPA connection, and the home base station supports the LIPA. Accordingly, the gist is that the handover request from the other home base station is permitted.
- LIPA Local Internet Protocol Access
- FIG. 1 is an overall configuration diagram of a mobile communication system according to an embodiment of the present invention. It is a block diagram of the user terminal which concerns on embodiment of this invention. It is a block diagram of a home base station according to an embodiment of the present invention. It is a figure for demonstrating operation
- FIG. 1 is an overall configuration diagram of a mobile communication system according to the present embodiment.
- the mobile communication system according to the present embodiment is configured based on LTE-Advanced (3GPP release 10 or later) whose specifications are defined by 3GPP.
- the mobile communication system includes a home base station (Home evolved Node B: HeNB) 200, a user terminal (User Equipment: UE) 100, and a local device (Local Entity: LE). 301 to 303 and a gateway (GW) 310.
- HeNB Home evolved Node B
- UE User Equipment
- LE Local Entity
- GW gateway
- each of the HeNB 200, the UE 100, the LEs 301 to 303, and the GW 310 is in the IP network in the same residence R.
- the HeNB 200 forms a small cell and performs radio communication with the UE 100 in the cell.
- a cell is a minimum unit of a wireless communication area.
- the HeNB 200 is provided with a local gateway (L-GW) function for implementing LIPA.
- LIPA means that an IP-capable UE 100 connected via the HeNB 200 does not cross an operator network (core network 400) other than the HeNB subsystem, and other IPs in the IP network of the same residence / company. This function enables access to the corresponding entity.
- the HeNB 200 (specifically, the L-GW provided in the HeNB 200) establishes and releases a LIPA connection.
- a solid arrow represents user data that flows through a LIPA connection between the UE 100 and the LE 301.
- broken line arrows in FIG. 1 represent user data flowing through the core network 400 when LIPA is not performed.
- the UE 100 is a portable wireless communication device possessed by a user, and is configured to be capable of IP communication.
- the UE 100 has a LIPA connection via the HeNB 200 with the LE 301.
- the UE 100 communicates with the LE 301 using the LIPA connection.
- Each of LE 301 to 303 is a device capable of IP communication.
- LE 301 is a PC (Personal Computer)
- LE 302 is a server
- LE 303 is a printer.
- the GW 310 relays data transmitted and received within the IP network in the residence R, and performs protocol conversion between the IP network in the residence R and the Internet 500.
- the core network 400 includes a serving gateway (S-GW) 410, a mobility management entity (MME) 420, and a PDN gateway (P-GW) 430.
- S-GW serving gateway
- MME mobility management entity
- P-GW PDN gateway
- the S-GW 410 is provided corresponding to the user plane, and is configured to perform transfer control of user data.
- the MME 420 is provided corresponding to the control plane, and is configured to perform various types of mobility management for the UE 100.
- the transmission path between the HeNB 200 and the S-GW 410 / MME 420 is referred to as an S1 interface.
- the transmission line between base stations between HeNB200 and another HeNB is called X2 interface.
- the P-GW 430 functions as an entrance from the core network 400 to the Internet 500 and an exit from the Internet 500 to the core network 400.
- HeNB gateway that accommodates a plurality of HeNBs 200 may be provided between the HeNB 200 and the S-GW 410 / MME 420.
- FIG. 2 is a block diagram of the UE 100.
- the UE 100 includes an antenna 101, a wireless communication unit 110, a user interface unit 120, a storage unit 130, a control unit 140, and a battery 150.
- the wireless communication unit 110 is configured to perform wireless communication via the antenna 101.
- the radio communication unit 110 performs up-conversion and amplification of the baseband signal input from the control unit 140 and outputs the radio signal from the antenna 101.
- the radio communication unit 110 performs amplification and down-conversion of the reception signal input from the antenna 101, and then outputs a baseband signal to the control unit 140.
- the user interface unit 120 includes a microphone for inputting sound, a speaker for outputting sound, a display for displaying an image, a button pressed by the user, and the like.
- the storage unit 130 is configured using a memory, for example, and stores various types of information used for control by the control unit 140 and the like.
- the control unit 140 is configured using, for example, a CPU, and controls various functions of the UE 100.
- the battery 150 stores power to be supplied to each block of the UE 100.
- the control unit 140 receives a reference signal reception state (reference signal reception power and reference signal reception) received by the wireless communication unit 110 in a state where communication is being performed (referred to as a connected mode). Quality) is measured for each cell, and the measurement result for each cell is controlled to be reported to the serving base station.
- a reference signal reception state reference signal reception power and reference signal reception
- Quality Quality
- Such a report is called a measurement report.
- the serving base station determines whether or not to perform handover for the UE 100 based on the measurement report.
- Handover is an operation in which the UE 100 in the connected mode switches the serving cell.
- the measurement report has a setting (Periodic) for periodically transmitting and a setting (Event trigger) for not transmitting until a trigger condition for enabling handover is satisfied.
- FIG. 3 is a block diagram of the HeNB 200.
- the HeNB 200 includes an antenna 201, a wireless communication unit 210, a network communication unit 220, a storage unit 230, and a control unit 240.
- the wireless communication unit 210 is configured to perform wireless communication via the antenna 201.
- the radio communication unit 210 performs up-conversion and amplification of the baseband signal input from the control unit 240 and outputs the radio signal from the antenna 201.
- the radio communication unit 210 performs amplification and down-conversion of the reception signal input from the antenna 201, and then outputs a baseband signal to the control unit 240.
- the network communication unit 220 communicates with the S-GW 410, the MME 420, or the HeNB GW using the S1 interface. Moreover, the network communication part 220 performs communication (communication between base stations) with other HeNB using an X2 interface. Further, the network communication unit 220 communicates with the LEs 301 to 303 via the GW 310 in the house R.
- the storage unit 230 is configured using a memory, for example, and stores various types of information used for control by the control unit 240 and the like.
- the control unit 240 is configured using a CPU, for example, and controls various functions of the HeNB 200.
- the control unit 240 includes a HeNB function control unit 241 for controlling the original HeNB function and an L-GW function unit 242 for implementing the L-GW function. Note that the HeNB 200 does not have the L-GW function unit 242 when LIPA is not supported.
- the HeNB function control unit 241 performs control of wireless communication with the UE 100 and control of network communication using the S1 interface and the X2 interface. Further, the HeNB function control unit 241 determines whether or not to perform handover to the target base station for the UE 100 based on the measurement report received by the radio communication unit 210 from the UE 100. The HeNB function control unit 241 starts a handover procedure when it is determined to perform a handover. Note that the handover procedure includes a handover preparation stage, a handover execution stage, and a handover completion stage.
- the L-GW function unit 242 performs various controls for implementing LIPA, for example, establishment or release of a LIPA connection. As will be described later, the L-GW function unit 242 is controlled by intra-node signaling from the HeNB function control unit 241.
- the HeNB function control unit 241 when the HeNB function control unit 241 starts a handover procedure from the HeNB 200 (own station) to the target base station for the UE 100 having the LIPA connection, information indicating that the UE 100 has the LIPA connection.
- the network communication unit 220 is controlled so as to be included in the handover request and transmitted to the target base station. Then, if the target base station permits the handover request, the HeNB function control unit 241 continues the handover procedure without releasing the LIPA connection. On the other hand, if the target base station rejects the handover request, the HeNB function control unit 241 requests the L-GW function unit 242 to release the LIPA connection using intra-node signaling.
- the network communication unit 220 receives a handover request including information indicating that the UE 100 has a LIPA connection.
- the HeNB function control unit 241 confirms whether or not the HeNB 200 (own station) supports LIPA (that is, whether or not it has the L-GW function unit 242), and supports the LIPA.
- the handover request received by the network communication unit 220 is permitted.
- the network communication unit 220 is controlled to return an acknowledgment for the handover request received by the network communication unit 220.
- the UE 100 in the communication area of the HeNB 200-1 is moving into the communication area of the HeNB 200-2 with the LIPA connection established with the LE 301 via the HeNB 200-1. .
- the operation pattern 1 described later is an operation of the mobile communication system when the HeNB 200-1 supporting LIPA is the source (handover source) and the HeNB 200-2 supporting LIPA is the target (handover destination).
- the operation pattern 2 described later is an operation of the mobile communication system when the HeNB 200-1 supporting LIPA is used as a source and the HeNB 200-2 not supporting LIPA is used as a target.
- FIG. 5 is a sequence diagram of operation pattern 1 of the mobile communication system.
- the radio communication unit 210 of the source HeNB 200-1 receives a measurement report from the UE 100.
- the measurement report includes the cell ID of the HeNB 200-2 and the measurement result for the cell.
- step S102 the HeNB function control unit 241 of the source HeNB 200-1 performs a handover procedure for the UE 100 to the target HeNB 200-2 based on the cell ID of the target HeNB 200-2 included in the measurement report received from the UE 100 in step S101. Decide to start.
- the HeNB function control unit 241 of the source HeNB 200-1 includes information (flag) indicating that the UE 100 has a LIPA connection in a handover request (HO Request) and transmits the information to the target HeNB 200-2.
- the communication unit 220 is controlled.
- the handover request is transmitted on the X2 interface if the X2 interface exists between the source HeNB 200-1 and the target HeNB 200-2, and is transmitted on the S1 interface if the X2 interface does not exist.
- the handover preparatory stage is initiated by the transmission of the handover request.
- the network communication unit 220 of the target HeNB 200-2 receives the handover request from the source HeNB 200-1.
- step S104 the HeNB function control unit 241 of the target HeNB 200-2 confirms that the handover request received in step S103 includes information indicating that the UE 100 has a LIPA connection. Check whether the station supports LIPA. In this operation pattern, since the target HeNB 200-2 supports LIPA, when other conditions are also satisfied, the HeNB function control unit 241 of the target HeNB 200-2 permits a handover request from the source HeNB 200-1. to decide.
- step S105 the HeNB function control unit 241 of the target HeNB 200-2 controls the network communication unit 220 to transmit an acknowledgment (HO Response ACK) to the handover request received in step S103 to the source HeNB 200-1.
- the acknowledgment (HO Response ACK) is transmitted on the X2 interface if the X2 interface exists between the source HeNB 200-1 and the target HeNB 200-2, and if the X2 interface does not exist. Sent on the S1 interface.
- the network communication unit 220 of the source HeNB 200-1 receives an acknowledgment from the target HeNB 200-2.
- step S106 the HeNB function control unit 241 of the source HeNB 200-1 transmits a handover command to the UE 100 in response to the network communication unit 220 receiving an acknowledgment from the target HeNB 200-2. Thereby, the execution stage of the handover is started.
- the handover command includes information for the UE 100 to access the target HeNB 200-2.
- the radio communication unit 110 of the UE 100 receives the handover command from the source HeNB 200-1.
- the control unit 140 of the UE 100 starts access to the target HeNB 200-2 in response to the radio communication unit 110 receiving a handover command from the source HeNB 200-1.
- step S107 the source HeNB 200-1 and the target HeNB 200-2 execute a handover execution stage and a completion stage.
- the UE 100 can switch the serving cell (serving base station) to the target HeNB 200-2 while the LIPA connection is maintained.
- FIG. 6 is a sequence diagram of operation pattern 2 of the mobile communication system.
- steps S201 to S203 are the same as steps S101 to S103 of the operation pattern 1.
- the network communication unit 220 of the target HeNB 200-2 receives the handover request from the source HeNB 200-1.
- step S204 the HeNB function control unit 241 of the target HeNB 200-2 confirms that the handover request received in step S203 includes information indicating that the UE 100 has a LIPA connection. Check whether the station supports LIPA. In this operation pattern, since the target HeNB 200-2 does not support LIPA, the HeNB function control unit 241 of the target HeNB 200-2 determines to reject the handover request from the source HeNB 200-1.
- step S205 the HeNB function control unit 241 of the target HeNB 200-2 controls the network communication unit 220 to transmit a negative response (HO Response NACK) to the handover request received in step S203 to the source HeNB 200-1.
- HO Response NACK a negative response
- the negative response (HO Response NACK) is transmitted on the X2 interface if the X2 interface exists between the source HeNB 200-1 and the target HeNB 200-2, and if the X2 interface does not exist. Sent on the S1 interface.
- the network communication unit 220 of the source HeNB 200-1 receives a negative response from the target HeNB 200-2.
- step S206 the HeNB function control unit 241 of the source HeNB 200-1 stops the handover procedure in response to the network communication unit 220 receiving a negative response from the target HeNB 200-2.
- step S206 the HeNB function control unit 241 of the source HeNB 200-1 requests the L-GW function unit 242 of the source HeNB 200-1 to release the LIPA connection using intra-node signaling.
- step S207 the L-GW function unit 242 of the source HeNB 200-1 releases the LIPA connection of the UE 100 in response to a request from the HeNB function control unit 241 of the source HeNB 200-1.
- step S208 the HeNB function control unit 241 of the source HeNB 200-1 disconnects the connection between the source HeNB 200-1 and the UE 100.
- step S209 the control unit 140 of the UE 100 accesses the target HeNB 200-2 and reconnects to the LE 301.
- the handover request according to the present embodiment includes a LIPA Connection Status IE indicating whether or not the UE 100 has a LIPA connection.
- the LIPA Connection Status IE is “1” if the UE 100 related to the handover request has a LIPA connection, and “0” if the UE 100 does not have a LIPA connection and has only a normal connection. Further, it can be configured as a 1-bit flag.
- the source HeNB 200-1 continues the handover procedure without releasing the LIPA connection.
- the source HeNB 200-1 does not know in advance whether or not the target base station supports LIPA, but confirms whether or not it supports LIPA on the target base station side. Handover can be performed while maintaining the LIPA connection.
- an access type such as “closed” in which only access of a specific UE is permitted and “open” in which access of other UEs is permitted may be set.
- such access type is not particularly considered, but handover control may be performed in consideration of the access type.
- the target HeNB that has received information that the UE 100 has a LIPA connection is an acknowledgment for the handover request if the local station supports LIPA and the local station allows access to the UE. May be transmitted to the source HeNB.
- the target HeNB is in the same residence (or company) as the source HeNB, but whether or not the target HeNB is in the same residence (or company) is determined at the handover determination. You may consider it. For example, if the target HeNB that has received information that the UE 100 has a LIPA connection supports the LIPA and is in the same residence (or company) as the source HeNB, the target HeNB sends an acknowledgment to the handover request. It may be transmitted to the source HeNB.
- the L-GW may be provided as an external node independently from the HeNB.
- one L-GW 320 may be installed for a plurality of HeNBs 200-1 and 200-2 at home (or in a company).
- the HeNB 200-1 uses the interface between the HeNB 200-1 and the L-GW 320 instead of intra-node signaling (Intra-node Signaling) to release the LIPA connection. Is requested to the L-GW 320.
- FIG. 8 is an operation flowchart in the configuration example shown in FIG.
- the operation of the mobile communication system when HeNB 200-1 that supports LIPA is used as a source and HeNB 200-2 that does not support LIPA is used as a target will be described. Differences from FIG. 6 will be mainly described.
- steps S301 to S305 are the same as in FIG.
- step S306 the source HeNB 200-1 stops the handover procedure in response to receiving a negative response from the target HeNB 200-2. Then, the source HeNB 200-1 requests the L-GW 320 to release the LIPA connection using the interface between the HeNB 200-1 and the L-GW 320.
- step S307 the L-GW 320 releases the LIPA connection of the UE 100 in response to a request from the source HeNB 200-1.
- step S308 the source HeNB 200-1 disconnects the connection between the source HeNB 200-1 and the UE 100.
- step S309 the UE 100 accesses the target HeNB 200-2 and reconnects to the LE 301.
- the communication control method and the home base station according to the present invention can support the mobility of the LIPA connection, and thus are useful in the mobile communication system.
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Abstract
Description
図1は、本実施形態に係る移動通信システムの全体構成図である。本実施形態に係る移動通信システムは、3GPPで仕様が策定されているLTE-Advanced(3GPPリリース10以降)に基づいて構成される。
次に、本実施形態に係るUE100の構成を説明する。図2は、UE100のブロック図である。
次に、本実施形態に係るHeNB200の構成を説明する。図3は、HeNB200のブロック図である。
次に、図4~図6を用いて、本実施形態に係る移動通信システムの動作を説明する。
図5は、移動通信システムの動作パターン1のシーケンス図である。
図6は、移動通信システムの動作パターン2のシーケンス図である。
次に、表1を用いて、本実施形態に係るハンドオーバ要求の具体例を説明する。表1において下線部で示した箇所は、新たに追加された情報要素(IE)である。下線部で示した箇所以外は、3GPP TS 36.423 V10.1.0の9.1.1.1 HANDOVER REQUESTで規定されている内容と同じである。
以上説明したように、LIPAをサポートするソースHeNB200-1は、LIPAコネクションを有するUE100についてソースHeNB200-1からターゲット基地局へのハンドオーバ手順を開始する際に、UE100がLIPAコネクションを有する旨の情報をハンドオーバ要求に含めてターゲット基地局へ送信する。
上記のように、本発明は実施形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施形態、実施例及び運用技術が明らかとなる。
Claims (4)
- 3GPP(3rd Generation Partnership Project)規格で規定されるLIPA(Local Internet Protocol Access)をサポートするホーム基地局における通信制御方法であって、
LIPAコネクションを有するユーザ端末について前記ホーム基地局からターゲット基地局へのハンドオーバ手順を開始する際に、前記ユーザ端末が前記LIPAコネクションを有する旨の情報をハンドオーバ要求に含めて前記ターゲット基地局へ送信するステップと、
前記ターゲット基地局が前記ハンドオーバ要求を許可すれば、前記LIPAコネクションを開放することなく前記ハンドオーバ手順を継続するステップと、
を有することを特徴とする通信制御方法。 - 3GPP(3rd Generation Partnership Project)規格で規定されるLIPA(Local Internet Protocol Access)をサポートするホーム基地局であって、
LIPAコネクションを有するユーザ端末について前記ホーム基地局からターゲット基地局へのハンドオーバ手順を開始する際に、前記ユーザ端末が前記LIPAコネクションを有する旨の情報をハンドオーバ要求に含めて前記ターゲット基地局へ送信し、
前記ターゲット基地局が前記ハンドオーバ要求を許可すれば、前記LIPAコネクションを開放することなく前記ハンドオーバ手順を継続する、
ように構成されていることを特徴とするホーム基地局。 - ホーム基地局における通信制御方法であって、
3GPP(3rd Generation Partnership Project)規格で規定されるLIPA(Local Internet Protocol Access)をサポートする他のホーム基地局から送信され、ユーザ端末がLIPAコネクションを有する旨の情報を含んだハンドオーバ要求を受信するステップと、
前記ホーム基地局が前記LIPAをサポートしていることに応じて、前記他のホーム基地局からの前記ハンドオーバ要求を許可するステップと、
を有することを特徴とする通信制御方法。 - ホーム基地局であって、
3GPP(3rd Generation Partnership Project)規格で規定されるLIPA(Local Internet Protocol Access)をサポートする他のホーム基地局から送信され、ユーザ端末がLIPAコネクションを有する旨の情報を含んだハンドオーバ要求を受信し、
前記ホーム基地局が前記LIPAをサポートしていることに応じて、前記他のホーム基地局からの前記ハンドオーバ要求を許可する、
ように構成されていることを特徴とするホーム基地局。
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EP11868448.9A EP2728932A4 (en) | 2011-06-28 | 2011-06-28 | COMMUNICATION CONTROL PROCEDURE AND HOME BASE STATION |
KR1020137034200A KR20140022434A (ko) | 2011-06-28 | 2011-06-28 | 통신제어방법 및 홈 기지국 |
CN201180071893.3A CN103621142A (zh) | 2011-06-28 | 2011-06-28 | 通信控制方法和家庭基站 |
PCT/JP2011/064840 WO2013001612A1 (ja) | 2011-06-28 | 2011-06-28 | 通信制御方法及びホーム基地局 |
JP2013522396A JP5671141B2 (ja) | 2011-06-28 | 2011-06-28 | 通信制御方法及びホーム基地局 |
US14/129,891 US9237487B2 (en) | 2011-06-28 | 2011-06-28 | Communication control method and home base station |
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EP (1) | EP2728932A4 (ja) |
JP (1) | JP5671141B2 (ja) |
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WO2016185531A1 (ja) * | 2015-05-15 | 2016-11-24 | 富士通株式会社 | 無線通信システム、無線通信装置およびハンドオーバ制御方法 |
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TW201318387A (zh) * | 2011-07-01 | 2013-05-01 | Interdigital Patent Holdings | 管理服務連續性方法及裝置 |
JP5889607B2 (ja) * | 2011-11-17 | 2016-03-22 | シャープ株式会社 | ホーム基地局装置、位置管理装置及び移動通信システム |
CN109905904B (zh) * | 2012-06-29 | 2022-05-03 | 北京三星通信技术研究有限公司 | 一种接入控制方法 |
BR112015027639B1 (pt) * | 2013-05-10 | 2024-02-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Método realizado em um primeiro nó de rede, primeiro nó de rede,método realizado em um segundo nó de rede, segundo nó de rede e meios de armazenamento não transitórios legíveis por computador relacionados |
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US9237487B2 (en) | 2016-01-12 |
JP5671141B2 (ja) | 2015-02-18 |
EP2728932A1 (en) | 2014-05-07 |
JPWO2013001612A1 (ja) | 2015-02-23 |
EP2728932A4 (en) | 2015-05-13 |
CN103621142A (zh) | 2014-03-05 |
KR20140022434A (ko) | 2014-02-24 |
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