WO2012025059A1 - Procédé, système et dispositif pour l'émission de l'adresse de transport x2 et l'établissement de l'interface x2 - Google Patents

Procédé, système et dispositif pour l'émission de l'adresse de transport x2 et l'établissement de l'interface x2 Download PDF

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Publication number
WO2012025059A1
WO2012025059A1 PCT/CN2011/078978 CN2011078978W WO2012025059A1 WO 2012025059 A1 WO2012025059 A1 WO 2012025059A1 CN 2011078978 W CN2011078978 W CN 2011078978W WO 2012025059 A1 WO2012025059 A1 WO 2012025059A1
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Prior art keywords
henb
information
enb
side device
network side
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PCT/CN2011/078978
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English (en)
Chinese (zh)
Inventor
刘洋
王彦
刘爱娟
赵瑾波
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电信科学技术研究院
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Publication of WO2012025059A1 publication Critical patent/WO2012025059A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for transmitting an X2 transmission address and establishing an X2 interface.
  • the communication interface between the evolved base stations (eNBs) is an X2 interface, and between the eNB and the mobility management entity (Mobility Management Entity, ⁇ )
  • the communication interface is an SI interface
  • the home base station (Home eNB, HeNB) can be directly connected to the MME, or can be accessed to the MME through a centralized node HeNB GW.
  • the HeNB can only be connected to one HeNB GW at the same time, and the eNB and the HeNB can pass through.
  • the HeNB GW establishes an indirect X2 interface.
  • the HeNB GW is a special network element, which is equivalent to an eNB, and has its own eNB identity (ID).
  • the eNB connected to the HeNB GW can obtain the HeNB cell under the HeNB GW through an Automatic Neighbor Relation (ANR).
  • ANR Automatic Neighbor Relation
  • Information such as HeNB ID, Tracking Area Identity ( ⁇ ), E-UTRAN Cell Global Identifier (E-CGI), and the like.
  • Step 1 The eNB A receives the measurement report from the terminal (UE) (the UE currently camps on a certain cell of the eNB A:), and includes the physical cell ID (PCI) of a cell under the eNB B. , and eNB A has not saved the information of the cell before;
  • UE terminal
  • PCI physical cell ID
  • Step 2 The eNB A determines that the cell information needs to be added to the Neighbor Relation Table (NRT), and instructs the UE to read the E-CGI, Tracking Area Update (TAC) information of the target cell, and public land. Public Land Mobile Network (PLMN) information, etc.;
  • NRT Neighbor Relation Table
  • TAC Tracking Area Update
  • PLMN Public Land Mobile Network
  • Step 3 After obtaining the above information, the UE reports to the eNB A, and the eNB A decides to establish an X2 interface with the eNB (ie, eNB B) to which the cell belongs, and obtains the eNB B according to the E-CGI information of the cell. ID;
  • Step 4 The eNB A initiates an eNB configuration transfer process to the MME, and obtains a transport layer address of the eNB B by interacting with the eNB B to transmit the transport network layer (TKL) information.
  • Step 5 The eNB A initiates an X2 establishment process according to the transport layer address of the eNB B, and establishes an X2 interface.
  • TNL transport network layer
  • the embodiments of the present invention provide a method for transmitting an X2 transport address, and a method, system, and device for establishing an X2 interface, which are used to establish an X2 interface between an eNB and a HeNB GW in a network architecture including a HeNB GW.
  • a method for establishing an X2 interface according to an embodiment of the present invention includes:
  • the first network side device acquires the X2 transmission address of the second network side device by using the mobility management entity MME; the first network side device according to the X2 transmission address of the second network side device, and the second network side device Establish an X2 interface between them.
  • a method for sending an X2 transmission address according to an embodiment of the present invention includes:
  • the second network side device determines an X2 transport address required by the first network side device
  • the second network side device sends the determined X2 transport address to the first network side device by using the MME.
  • a method for forwarding an X2 transport address comprising:
  • the MME forwards the information about the X2 transport address of the second network side device from the first network side device to the second network side device;
  • the MME forwards the X2 transport address from the second network side device to the first network side device.
  • An acquiring module configured to acquire, by using an MME, an X2 transport address of the second network side device
  • a establishing module configured to establish an X2 interface with the second network side device according to the X2 transport address of the second network side device.
  • a transmission address determining module configured to determine an X2 transport address required by the first network side device
  • a notification module configured to send, by using the MME, the determined X2 transport address to the first network side device.
  • a first forwarding module configured to forward, by the first network side device, the information about the second network side device X2 transmission address to the second network side device;
  • a system for establishing an X2 interface includes:
  • a first network side device configured to acquire an X2 transport address of the second network side device by using the MME, and establish an X2 interface with the second network side device according to the X2 transport address of the second network side device;
  • An MME configured to send, to the first network side device, an X2 transport address of the second network side device;
  • a second network side device configured to send, to the MME, an X2 transport address of the second network side device.
  • the first network side device can obtain the X2 transmission address of the second network side device, and the X2 interface is established between the first network side device and the second network side device.
  • the eNB can be enabled.
  • FIG. 1 is a schematic structural diagram of a system for establishing an X2 interface according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a first network side device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a second network side device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an MME according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for establishing an X2 interface according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a method for transmitting an X2 transmission address according to an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method for an eNB to initiate an X2 interface according to an embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a method for a second eNB to initiate an X2 interface according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method for a HeNB GW to initiate an X2 interface according to an embodiment of the present invention
  • FIG. 10 is a schematic flowchart of a method for a second HeNB GW to initiate an X2 interface according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of a second application scenario according to an embodiment of the present invention. detailed description
  • the first network side device acquires the X2 transmission address of the second network side device by using the MME, and establishes an X2 interface with the second network side device according to the X2 transmission address of the second network side device.
  • the first network side device can establish an X2 interface with the second network side device because the first network side device can obtain the X2 transmission address of the second network side device.
  • the embodiments of the present invention may be applied to E-UTRAN, and may also be applied to other MMEs and HeNBs.
  • the system for establishing an X2 interface includes: a first network side device 10, a second network side device 20, and a Mobility Management Entity (MME) 30.
  • MME Mobility Management Entity
  • the first network side device 10 is configured to acquire an X2 transmission address of the second network side device 20 through the MME 30, and establish an X2 interface with the second network side device 20 according to the X2 transmission address of the second network side device 20.
  • the MME 30 is configured to send the ⁇ 2 transport address of the second network side device 20 to each side device 10 of the first network.
  • the second network side device 20 is configured to send the X2 transport address of the second network side device 20 to the MME 30.
  • the second network side device 20 is a He B GW; if the first network side device 10 is a HeNB GW, the second network side device 20 is an eNB.
  • the first network side device 10 acquires the X2 transmission address of the second network side device 20 through the MME 30, which will be separately described below.
  • the first network side device 10 is an eNB
  • the second network side device 20 is a HeNB GW.
  • the eNB sends an eNB ID and a HeNB GW ID to the MME.
  • the MME forwards the eKB ID and the HeNB GW ID to the HeNB GW corresponding to the HeNB GW ID;
  • the HeNB GW After receiving the eNB ID and the HeNB GW ID sent by the MME, the HeNB GW sends its own X2 transport address, eNB ID, and HeNB GW ID to the MME;
  • the MME forwards the X2 transport address, the eNB ID, and the HeNB GW ID from the HeNB GW to the e B corresponding to the eNB ID.
  • the eNB may obtain the HeNB GW ID by using the following scheme:
  • the eNB determines the first information of the HeNB connected to the HeNB GW, and sends the eNB ID and the first information to the MME, where the first information is the TAI of the HeNB and/or the TeNB and/or the ID of the HeNB means that the TAI may be It can also be an ID, and can also be a TAI and an ID. What information is carried in the specific first information can be set as needed, but it is ensured that the MME can find the corresponding HeNB according to the first information.
  • the "and/or" and second and third information appearing in the following text are similar to the above, and will not be repeated.
  • the MME determines the HeNB GW ID of the HeNB GW to which the HeNB belongs according to the first information, and returns the HeNB GW ID to the eNB corresponding to the eNB ID.
  • the corresponding HeNB may be directly determined according to the ID, and the HeNB GW ID of the HeNB GW to which the HeNB belongs is further determined;
  • the MME stores the mapping relationship between the TAI and the HeNB ID of the HeNB GW, and can be addressed to the HeNB GW ID of the HeNB GW by using the TAI information;
  • the first information is ID and TAI, any one of them may be selected to determine the HeNB GW ID.
  • the second information and the third information appearing later are similar to the first information and are not mentioned.
  • the eNB may acquire related information of the HeNB connected to the HeNB GW through an ANR process, and then determine the first information according to the related information.
  • Relevant information includes but is limited to one or more of the following information:
  • TAI includes Public Land Mobile Network (PLMN) information and TAC information.
  • PLMN Public Land Mobile Network
  • the MME may further determine, according to the first information, a TAI of the HeNB GW to which the HeNB belongs, and return the HeNB to the eNB.
  • the GW ID can also be returned to the TAI of the HeNB GW. This information can be saved as a parameter in the eNB neighbor relationship list for subsequent handover and related procedures.
  • the first network side device 10 is an eNB
  • the second network side device 20 is a HeNB GW.
  • the eNB sends the first information of the HeNB connected to the HeNB GW and the second information of the eNB to the MME, where the first information is the TAI of the HeNB and/or the ID of the HeNB, and the second information is the TAI and/or the eNB of the eNB. ID
  • the MME forwards the first information and the second information to the HeNB GW to which the HeNB corresponding to the first information belongs;
  • the HeNB GW After receiving the first information and the second information sent by the MME, the HeNB GW sends its X2 transmission address, the first information, and the second information to the MME;
  • the MME forwards the X2 transport address, the first information, and the second information from the HeNB GW to the e muscle corresponding to the second information.
  • the scheme for determining the first information by the eNB is the same as the scheme for determining the first information by the eNB in the first mode, and details are not described herein again.
  • e NB transmits a first message to the MME
  • the MME is not the case the first routing information directly to the HeNB, but routed to the upper node HeNB, i.e. HeNB GW.
  • the MME determines whether the HeNB corresponding to the first information has an upper node, and if yes, sends the first information to the upper node; otherwise, sends the first information to the HeNB corresponding to the first information.
  • the eNB sends the first information by using an eNB configuration transfer message, and after receiving the eNB configuration transfer message of the eNB, if the MME has an upper node, the eNB is configured to transmit the cell (SON Configuration transfer).
  • IE transmits to the upper node to which the designated eNB (or HeNB) belongs; if there is no upper node, transmits the SON Configuration transfer IE to the designated eNB (or HeNB).
  • the first network side device 10 is a HeNB GW, and the second network side device 20 is an eNB.
  • the HeNB GW acquires the first information and the second information of the HeNB that is connected to the HeNB GW, and sends the first information and the second information of the eNB to the MME, where the first information is the TAI of the HeNB and/or the ID of the HeNB.
  • the second information is an TAI of the eNB and/or an ID of the eNB;
  • the MME forwards the first information and the second information to the eNB corresponding to the second information
  • the eNB After receiving the first information and the second information sent by the MME, the eNB sends its X2 transmission address, the first information, and the second information to the MME;
  • the MME forwards the X2 transport address, the first information, and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs.
  • the He B GW may obtain the first information and the second information through the HeNB connected to the HeNB GW.
  • the HeNB connected to the HeNB GW acquires related information of the eNB through an ANR process, and then determines the second information according to the related information.
  • Relevant information includes but is limited to one or more of the following: e B ID, PCI, and TAL
  • the HeNB connected to the HeNB GW transmits the first information and the second information of the HeNB to the HeNB GW.
  • the HeNB connected to the HeNB GW may send the first information and the second information by using an S1AP message or an X2AP message.
  • the HeNB connected to the HeNB GW needs to establish an X2 interface with the HeNB GW before the transmission.
  • the first network side device 10 is a HeNB GW, and the second network side device 20 is an eNB.
  • the HeNB GW acquires the first information of the HeNB and the second information of the eNB that are connected to the HeNB GW, and replaces the first information with the third information, and sends the second information and the third information to the MME, where the first information is The TAI of the HeNB and/or the ID of the HeNB, the second information is the TAI of the eNB and/or the ID of the eNB, and the third information is the TAI of the HeNB GW and/or the ID of the HeNB;
  • the MME forwards the second information and the third information to the eNB corresponding to the second information;
  • the eNB After receiving the second information and the third information sent by the MME, the eNB sends its X2 transmission address, the second information, and the third information to the MME;
  • the MME forwards the X2 transport address, the second information, and the third information from the eNB to the HeNB corresponding to the third information.
  • the scheme in which the HeNB GW obtains the first information and the second information is the same as the scheme in which the HeNB GW obtains the first information and the second information in the third method, and details are not described herein again.
  • the MME transparently transmits the received second information and the third information to the eNB corresponding to the second information, and if the other node receives the second information and the third information, transmits the information to the higher node.
  • the HeNB GW transmits the second information and the third information by using an eNB configuration transfer message.
  • the message is directly transmitted according to the indication; for other network nodes, the message may continue to be sent to a higher network node (such as MME).
  • the first network side device 10 and the second network side device 20 in the embodiment of the present invention are not limited to the eNB and the HeNB GW, and may be other network side devices that need to establish an X2 connection through the MME.
  • the specific manners of the eNB and the HeNB GW are not described herein again.
  • the first network side device of the embodiment of the present invention includes: an obtaining module 100 and an establishing module 110.
  • the obtaining module 100 is configured to acquire an X2 transport address of the second network side device by using the MME.
  • the establishing module 110 is configured to establish an X2 interface with the second network side device according to the X2 transmission address of the second network side device.
  • the network side device is an eNB, and the second network side device is a HeNB GW.
  • the obtaining module 100 sends the eNB ID and the HeNB GW ID to the MME, and receives the X2 transport address, the eNB ID, and the HeNB GW ID of the HeNB GW forwarded by the MME.
  • the obtaining module 100 may further determine the first information of the HeNB that is connected to the HeNB GW, send the eNB ID and the first information to the MME, and receive the HeNB GW ID of the HeNB GW to which the HeNB belongs, which is sent by the MME;
  • the information is the TAI of the HeNB and/or the ID of the HeNB.
  • the obtaining module 100 may also receive the TAI of the HeNB GW to which the HeNB belongs sent by the MME.
  • the network side device is an eNB, and the second network side device is a HeNB GW.
  • the acquiring module 100 sends the first information of the HeNB connected to the HeNB GW and the second information of the eNB to the MME, and receives the X2 transport address, the first information and the second information of the HeNB GW forwarded by the MME;
  • the information is the TAI of the HeNB and/or the ID of the HeNB
  • the second information is the TAI of the eNB and/or the ID of the eNB.
  • the network side device is a HeNB GW, and the second network side device is an eNB.
  • the acquiring module 100 acquires the first information of the HeNB and the second information of the eNB that are connected to the HeNB GW, sends the first information and the second information to the MME, and receives the X2 transport address, the first information, and the eNB of the MME forwarded by the MME.
  • Second information wherein the first information is the TAI of the HeNB and/or the ID of the HeNB, and the second information is the TAI of the eNB and/or the eNB of the eNB
  • the network side device is a HeNB GW, and the second network side device is an eNB.
  • the acquiring module 100 acquires the first information of the HeNB connected to the HeNB GW and the second information of the eNB, and replaces the first information with the third information, and sends the second information and the third information to the MME, and receives the MME forwarding.
  • the obtaining module 100 receives the first information and the second information sent by the HeNB connected to the HeNB GW. Specifically, the obtaining module 100 may receive the first information and the second information by using an S1AP (SI Application Protocol) message or an X2AP (X2 Application Protocol) message.
  • S1AP SI Application Protocol
  • X2AP X2 Application Protocol
  • the obtaining module 100 and the establishing module 110 are the modules included in the network side device of the embodiment of the present invention, and the network side device of the embodiment of the present invention can also serve as a receiver for establishing the X2 interface.
  • the network side device in the embodiment of the present invention may further include: a transmission address determining module 120 and a notification module 130.
  • the transmission address determining module 120 is configured to determine an X2 transport address required by the first network side device.
  • the notification module 130 is configured to send, by using the MME, the determined X2 transport address to the first network side device.
  • the first network side device is an eNB, and the network side device is a HeNB GW.
  • the transmission address determining module 120 determines the ⁇ 2 transport address required by the first network side device
  • the notification module 130 transmits the ⁇ 2 transport address, the eNB ID, and the HeNB GW ID to the eNB through the MME.
  • the first network side device is an eNB, and the network side device is a HeNB GW.
  • the transmission address determining module 120 determines an X2 transmission address required by the first network side device, where the first information is the TAI of the HeNB and/or the HeNB. ID, the second information is an TAI of the eNB and/or an ID of the eNB;
  • the notification module 130 transmits the X2 transport address, the first information, and the second information to the eNB through the MME.
  • the first network side device is a HeNB GW, and the network side device is an eNB.
  • the transmission address determining module 120 determines an X2 transmission address required by the first network side device, where the first information is the TAI and/or the HeNB of the HeNB. ID, the second information is the TAI of the eNB and/or the ID of the eNB;
  • the notification module 130 transmits the X2 transmission address, the first information, and the second information to the HeNB GW through the MME.
  • the first network side device is a HeNB GW, and the network side device is an eNB.
  • the transmission address determining module 120 determines an X2 transmission address required by the first network side device, where the second information is the TAI and/or the eNB of the eNB. ID, the third information is the TAI of the HeNB GW and/or the ID of the HeNB;
  • the notification module 130 transmits the X2 transport address, the second information, and the third information to the HeNB GW through the MME.
  • the second network side device in the embodiment of the present invention includes: a transport address determining module 200 and a notification module 210.
  • the functions of the transmission address determining module 200 and the notification module 210 are the same as those of the transmission address determining module 120 and the notification module 130 in FIG. 2, and are not described herein again.
  • the MME of the embodiment of the present invention includes: a first forwarding module 300 and a second forwarding module 3 10.
  • the first forwarding module 300 is configured to forward, by the first network side device, information for acquiring the X2 transport address of the second network side device to the second network side device.
  • the second forwarding module 310 is configured to forward the X2 transport address from the second network side device to the first network side device.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • the first forwarding module 300 forwards the eNB ID and the HeNB GW ID from the eNB to the HeNB GW ID.
  • the HeNB GW ID corresponds to the HeNB GW ID.
  • the second forwarding module 310 forwards the X2 transport address, the eNB ID, and the HeNB GW ID from the HeNB GW to the e B corresponding to the eNB ID.
  • the MME of the embodiment of the present invention may further include: a processing module 320.
  • the processing module 320 is configured to determine, according to the received first information, a HeNB GW of the HeNB GW to which the HeNB belongs.
  • the ID, and the HeNB GW ID is returned to the eNB corresponding to the eNB ID, where the first information is the TAI of the HeNB and/or the ID of the HeNB.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • the first forwarding module 300 forwards the first information and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs;
  • the second forwarding module 310 forwards the X2 transport address, the first information, and the second information from the HeNB GW to the eNB corresponding to the second information;
  • the first information is the TAI of the HeNB and/or the ID of the HeNB
  • the second information is the TAI of the eNB and/or the eNB.
  • the first forwarding module 310 may further forward the first information and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs after determining that the HeNB corresponding to the first information has an upper node.
  • the first network side device is a HeNB GW, and the second network side device is an eNB.
  • the first forwarding module 300 forwards the first information and the second information from the HeNB GW to the eNB corresponding to the second information;
  • the second forwarding module 310 forwards the X2 transport address, the first information, and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs;
  • the first information is the TAI of the HeNB and/or the ID of the HeNB
  • the second information is the TAI of the eNB and/or the eNB.
  • the first network side device is a HeNB GW, and the second network side device is an eNB.
  • the first forwarding module 300 forwards the second information and the third information from the HeNB GW to the eNB corresponding to the second information;
  • the second forwarding module 310 forwards the X2 transport address, the second information, and the third information from the eNB to the HeNB GW corresponding to the third information;
  • the second information is the TAI of the eNB and/or the ID of the eNB
  • the third information is the TAI of the HeNB GW and/or the ID of the HeNB.
  • the method for establishing an X2 interface includes the following steps: Step 501: The first network side device acquires an X2 transport address of the second network side device by using the MME.
  • Step 502 The first network side device establishes an X2 interface with the second network side device according to the X2 transmission address of the second network side device.
  • the second network side device is a HeNB GW; if the first network side device 10 is a HeNB GW, the second network side device 20 is an eNB.
  • step 501 there are many ways for the first network side device to obtain the X2 transmission address of the second network side device by using the MME, which are separately described below.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • the eNB sends an eNB ID and a HeNB GW ID to the MME.
  • the MME forwards the eNB ID and the HeNB GW ID sent by the eNB to the HeNB GW corresponding to the HeNB GW ID;
  • the HeNB GW After receiving the eNB ID and the HeNB GW ID sent by the MME, the HeNB GW sends its own X2 transport address, eNB ID, and HeNB GW ID to the MME;
  • the MME forwards the X2 transport address, the eNB ID, and the HeNB GW ID from the HeNB GW to the e B corresponding to the eNB ID.
  • the eNB may obtain the HeNB GW ID by using the following scheme:
  • the eNB determines the first information of the HeNB connected to the HeNB GW, and sends the eNB ID and the first information to the MME, where the first information is the TAI of the HeNB and/or the ID of the HeNB;
  • the MME determines the HeNB GW ID of the HeNB GW to which the HeNB belongs according to the first information, and returns the HeNB GW ID to the eNB corresponding to the eNB ID.
  • the eNB may acquire related information of the HeNB connected to the HeNB GW through an ANR process, and then determine the first information according to the related information.
  • Relevant information includes but is limited to one or more of the following information:
  • TAI includes PLMN information and TAC.
  • the MME may further determine, according to the first information, the TAI of the HeNB GW to which the HeNB belongs, and may return the eNB of the HeNB GW while returning the HeNB GW ID to the eNB.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • the eNB sends the first information of the HeNB connected to the HeNB GW and the second information of the eNB to the MME, where the first information is the TAI of the HeNB and/or the ID of the HeNB, and the second information is the TAI of the eNB. And/or the ID of the eNB;
  • the MME forwards the first information and the second information to the HeNB GW to which the HeNB corresponding to the first information belongs;
  • the HeNB GW After receiving the first information and the second information sent by the MME, the HeNB GW sends its X2 transmission address, the first information, and the second information to the MME; The MME forwards the X2 transport address, the first information, and the second information from the HeNB GW to the e muscle corresponding to the second information.
  • the scheme for determining the first information by the eNB is the same as the scheme for determining the first information by the eNB in the first mode, and details are not described herein again.
  • the eNB sends the first information to the MME, and the MME does not directly route the first information to the MME at this time.
  • the HeNB is routed to the upper node of the HeNB, that is, the HeNB GW.
  • the MME determines whether the HeNB corresponding to the first information has an upper node, and if yes, sends the first information to the upper node; otherwise, sends the first information to the HeNB corresponding to the first information.
  • the MME receives the eNB configuration transfer message of the eNB, and if there is an upper node, transmits the SON Configuration transfer IE to the upper node to which the designated eNB (or HeNB) belongs. If there is no upper node, the SON Configuration transfer IE is transmitted to the designated eNB (or HeNB).
  • the first network side device is a HeNB GW, and the second network side device is an eNB.
  • the HeNB GW acquires the first information of the HeNB connected to the HeNB GW and the second information of the eNB, and sends the first information and the second information of the eNB to the MME, where the first information is the TAI of the HeNB and / or ID of the HeNB, the second information is the TAI of the eNB and/or the ID of the eNB;
  • the MME forwards the first information and the second information to the eNB corresponding to the second information
  • the eNB After receiving the first information and the second information sent by the MME, the eNB sends its X2 transmission address, the first information, and the second information to the MME;
  • the MME forwards the X2 transport address, the first information, and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs.
  • the HeNB GW may obtain the first information and the second information through the HeNB connected to the HeNB GW. Specifically, the HeNB connected to the HeNB GW acquires related information of the eNB through an ANR process, and then determines the second information according to the related information. Relevant information includes but is limited to one or more of the following: eNB ID, PCI, and TAI.
  • the HeNB connected to the HeNB GW transmits the first information and the second information of the HeNB to the HeNB GW.
  • the HeNB connected to the HeNB GW may send the first information and the second information by using an S1AP message or an X2AP message.
  • the first network side device is a HeNB GW, and the second network side device is an eNB.
  • the HeNB GW acquires the first information of the HeNB connected to the HeNB GW and the second information of the eNB, and replaces the first information with the third information, and sends the second information and the third information to the MME, where
  • First The information is the TAI of the HeNB and/or the ID of the HeNB
  • the second information is the TAI of the e B and/or the ID of the e B
  • the third information is the TAI of the HeNB GW and/or the ID of the HeNB
  • the MME forwards the second information and the third information to the eNB corresponding to the second information;
  • the eNB After receiving the second information and the third information sent by the MME, the eNB sends its X2 transmission address, the second information, and the third information to the MME;
  • the MME forwards the X2 transport address, the second information, and the third information from the eNB to the HeNB corresponding to the third information.
  • the scheme in which the HeNB GW obtains the first information and the second information is the same as the scheme in which the HeNB GW obtains the first information and the second information in the third method, and details are not described herein again.
  • the MME transparently transmits the received second information and the third information to the eNB corresponding to the second information, and if the other node receives the second information and the third information, transmits the information to the higher node.
  • the HeNB GW transmits the second information and the third information by using an eNB configuration transfer message.
  • the message is directly transmitted according to the indication; for other network nodes, the message may continue to be sent to a higher network node (such as the MME).
  • the two devices of the HeNB GW may be other network-side devices that need to establish an X2 connection through the MME.
  • the specific manners of the device and the eNB and the HeNB GW are not described herein.
  • the method for transmitting an X2 transport address in the embodiment of the present invention includes the following steps:
  • Step 601 The second network side device determines an X2 transmission address required by the first network side device (that is, an X2 transmission address of the second network side device itself).
  • Step 602 The second network side device sends the determined X2 transport address to the first network side device by using the MME.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • step 601 after receiving the eNB ID and the HeNB GW ID sent by the eNB, the HeNB GW determines the ⁇ 2 transport address required by the first network side device. Correspondingly, in step 602, the HeNB GW sets the X2 transport address and the eNB ID. And the HeNB GW ID is sent to the eNB through the MME.
  • the first network side device is an eNB
  • the second network side device is a HeNB GW.
  • the HeNB GW determines an X2 transport address required by the first network side device, where the first information is the TAI of the HeNB and/or the ID of the HeNB.
  • the second information is the TAI of the eNB and/or the ID of the eNB.
  • the HeNB GW sends the X2 transport address, the first information, and the second information to the eNB through the MME.
  • the first network side device is a HeNB GW
  • the second network side device is an eNB.
  • the eNB determines an X2 transmission address required by the first network side device, where the first information is the TAI of the HeNB and/or the ID of the HeNB.
  • the second information is the TAI of the eNB and/or the ID of the eNB.
  • the eNB sends the X2 transport address, the first information, and the second information to the HeNB GW through the MME.
  • the first network side device is a HeNB GW, and the second network side device is an eNB.
  • step 601 after receiving the second information and the third information that the HeNB GW sends through the MME, the eNB determines an X2 transmission address that is required by the first network side device, where the second information is the TAI of the eNB and/or the ID of the eNB.
  • the third information is the TAI of the HeNB GW and/or the ID of the HeNB.
  • the eNB sends the X2 transport address, the second information, and the third information to the HeNB GW through the MME.
  • the embodiment of the invention further provides a method for forwarding an X2 transport address, which specifically includes the following steps:
  • Step A The MME forwards information about the X2 transport address of the second network side device from the first network side device to the second network side device;
  • Step B The MME forwards the X2 transport address from the second network side device to the first network side device.
  • the first network side device may be an eNB, and the second network side device is a HeNB GW; or the first network side device is a HeNB GW, and the second network side device is an eNB.
  • step A the MME forwards the eNB ID and the HeNB GW ID from the eNB to the HeNB GW corresponding to the HeNB GW ID;
  • step B The specific implementation of step B is as follows: The MME forwards the X2 transport address, the eNB ID, and the HeNB GW ID from the HeNB GW to the eNB corresponding to the eNB ID.
  • the MME determines, according to the received first information, the HeNB GW ID of the HeNB GW to which the HeNB belongs, and returns the HeNB GW ID to the eNB corresponding to the eNB ID.
  • the first information is the TAI and/or of the HeNB. ID of the HeNB.
  • the specific implementation of the step A is: the MME forwards the first information and the second information from the eNB to the HeNB to which the first information belongs. HeNB GW; correspondingly, the specific implementation of step B is: the MME forwards the X2 transport address, the first information and the second information from the HeNB GW to the e B corresponding to the second information; wherein, the first information is the TAI of the HeNB and / or ID of the HeNB, the second information is the TAI of the eNB and/or the ID of the eNB.
  • the MME forwards the first information and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs.
  • the specific implementation of the step A is: the MME forwards the first information and the second information from the HeNB GW to the eNB corresponding to the second information;
  • the specific implementation of the step B is: the MME forwards the X2 transport address, the first information, and the second information from the eNB to the HeNB GW to which the HeNB corresponding to the first information belongs; wherein the first information is the TAI of the HeNB and/or The ID of the HeNB, the second information is the TAI of the eNB and/or the ID of the eNB.
  • the specific implementation of the step A is: the MME forwards the second information and the third information from the HeNB GW to the second information.
  • the specific implementation of the step B is: the MME forwards the X2 transport address, the second information, and the third information from the eNB to the HeNB GW corresponding to the third information; where the second information is the TAI of the eNB / or ID of the eNB, the third information is the TAI of the HeNB GW and/or the ID of the HeNB.
  • the method for the first eNB to initiate the establishment of the X2 interface includes the following steps: Step 701: The eNB obtains E-CGI, PCI, TAI, and the like information of a HeNB cell under the HeNB GW through the ANR process. And determine the first information.
  • Step 702 The eNB sends an eNB ID inquiry request (eNB ID inquiry request) message carrying the first information to the MME, and queries the HeNB GW ID of the HeNB GW to which the HeNB belongs.
  • eNB ID inquiry request eNB ID inquiry request
  • Step 703 After receiving the eNB ID inquiry request message, the MME searches for the HeNB GW ID of the HeNB GW to which the HeNB cell belongs according to the first information, and sends the HeNB GW ID by using an eNB ID inquiry response message. Return to the eNB.
  • Step 704 After receiving the eNB ID inquiry response message, the eNB sends an eNB configuration transfer message carrying the eNB ID and the HeNB GW ID to the MME.
  • Step 705 The MME sends an MME configuration transfer message carrying the eNB ID and the HeNB GW ID to the HeNB GW corresponding to the HeNB GW ID.
  • Step 706 The HeNB GW sends an eNB configuration transfer message carrying its own X2 transport address, eNB ID, and HeNB GW ID to the MME.
  • the eNB configuration transfer message may also not carry the HeNB GW ID.
  • Step 707 The MME sends an MME configuration transfer message carrying the X2 transport address, the eNB ID, and the HeNB GW ID to the eNB corresponding to the eNB ID.
  • Step 708 The eNB establishes an X2 interface with the HeNB GW according to the X2 transport address.
  • the information that can be carried in the eNB ID inquiry response message includes, but is not limited to, one or more of the following information:
  • the eNB can process the X2AP message during the subsequent handover process according to the eNB.
  • the method for the second eNB to initiate the establishment of the X2 interface includes the following steps: Step 801: The eNB obtains E-CGI, PCI, TAI, and the like information of a HeNB cell under the HeNB GW through the ANR process. And determine the first information.
  • Step 802 The eNB sends an eNB configuration transfer message carrying the first information and the second information to the MME.
  • Step 803 The MME sends an MME configuration transfer message carrying the first information and the second information to the HeNB GW corresponding to the first information.
  • Step 804 The HeNB GW sends an eNB configuration transfer message carrying its own X2 transport address, first information, and second information to the MME.
  • the first information may not be carried in the eNB configuration transfer message.
  • Step 805 The MME sends an X2 transport address, a first information, and a second information MME configuration transfer message to the eNB corresponding to the second information.
  • Step 806 The eNB establishes an X2 interface with the HeNB GW according to the X2 transport address.
  • the method for the first HeNB GW to initiate the establishment of the X2 interface includes the following steps: Step 901: The HeNB obtains the ID, TAI, and the like information of the eNB through the ANR process, and determines the second information. Step 902: An X2 interface is established between the HeNB and the HeNB GW.
  • Step 903 The HeNB sends an Indirect X2 setup request message carrying the first information and the second information to the HeNB GW.
  • Step 904 The HeNB GW sends an eNB configuration transfer message carrying the first information and the second information to the MME.
  • the HeNB GW may further replace the first information with the third information.
  • the first information in the subsequent step becomes the third information.
  • Step 905 The MME sends an MME configuration transfer message carrying the first information and the second information to the eNB corresponding to the second information.
  • Step 906 The eNB sends an eNB configuration transfer message carrying its own X2 transport address, first information, and second information to the MME.
  • the eNB configuration transfer message may also not carry the second information.
  • Step 907 The MME sends an MME configuration transfer message carrying the X2 transmission address, the first information, and the second information to the upper node HeNB GW of the HeNB corresponding to the first information.
  • the MME sends an MME configuration transfer message carrying the X2 transport address, the third information, and the second information to the HeNB GW corresponding to the third information.
  • Step 909 The HeNB GW sends an Indirect X2 setup response message to the HeNB GW.
  • the method for the second HeNB GW to initiate the establishment of the X2 interface includes the following steps: Step 1001: The HeNB obtains information such as an ID, a TAI, and the like of the eNB through an ANR process, and determines the second information. Step 1002: The HeNB sends an eNB configuration transfer message carrying the first information and the second information to the HeNB GW.
  • Step 1003 The HeNB GW replaces the first information with the third information, and sends an eNB configuration transfer message carrying the second information and the third information to the MME.
  • the HeNB GW may not replace the first information with the third information; correspondingly, the third information in the subsequent step becomes the first information.
  • Step 1004 The MME sends an MME configuration transfer message carrying the second information and the third information to the eNB corresponding to the second information.
  • Step 1005 The eNB sends an eNB configuration transfer message carrying its own X2 transport address, second information, and third information to the MME.
  • the eNB configuration transfer message may also not carry the second information.
  • Step 1006 The MME sends an MME configuration transfer message carrying the X2 transport address, the second information, and the third information to the HeNB GW corresponding to the third information.
  • the MME sends an MME configuration transfer message carrying the X2 transport address, the first information, and the second information to the upper node HeNB GW of the HeNB corresponding to the first information.
  • Step 1007 The HeNB GW establishes an X2 interface with the eNB according to the X2 transport address.
  • Step 1008 The HeNB GW forwards, to the HeNB, an MME configuration transfer message carrying the X2 transport address, the second information, and the third information.
  • Step 1009 An X2 interface is established between the HeNB and the HeNB GW.
  • an eNB may automatically establish an X2 interface with a HeNB GW through an ANR process (or an HeNB GW may automatically establish an X2 interface with an eNB through an ANR process). After that, the HeNB GW can establish an X2 interface with each subordinate HeNB cell to prepare for the subsequent mobility optimization process.
  • the MME when the MME receives the eNB ID request message sent by the eNB, if the HeNB is directly connected to the MME, and there is no HeNB GW node, then Directly reply to the eNB ID inquiry failure message, cancel the X2 establishment process, if the HeNB is found to exist
  • the He B GW node returns an e B ID inquiry response message carrying the HeNB GW ID.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the X2 interface is established between the first network side device and the second network side device, and the H2 GW is included in the HeNB GW.
  • an X2 interface can be established between the eNB and the HeNB GW, which improves network-side performance.

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente application a trait au domaine technique des communications sans fil, en particulier à un procédé, un système et un dispositif pour l'émission d'une adresse de transport X2 et l'établissement d'une interface X2, pour utilisation dans une structure de réseau ayant une passerelle domestique de nœud de base évolué (eNB) (HeNB GW), permettant d'établir l'interface X2 entre la passerelle HeNB et l'eNB. Dans le procédé, un premier dispositif côté réseau acquiert l'adresse de transport X2 d'un deuxième dispositif côté réseau par l'intermédiaire d'une entité de gestion de mobilité (MME) (501) ; à partir de l'adresse de transport X2 du deuxième dispositif côté réseau, le premier dispositif côté réseau établit l'interface X2 avec le deuxième dispositif côté réseau (502). Du fait que le premier côté réseau est capable d'acquérir l'adresse de transport X2 du deuxième dispositif côté réseau, l'interface X2 établie entre le premier dispositif côté réseau et le deuxième dispositif côté réseau, pour la structure de réseau ayant une passerelle HeNB, permet l'établissement de l'interface X2 entre l'eNB et la passerelle HeNB, ce qui améliore les performances du côté réseau.
PCT/CN2011/078978 2010-08-26 2011-08-26 Procédé, système et dispositif pour l'émission de l'adresse de transport x2 et l'établissement de l'interface x2 WO2012025059A1 (fr)

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