WO2014177004A1 - 一种建立连接的方法、装置及系统 - Google Patents

一种建立连接的方法、装置及系统 Download PDF

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Publication number
WO2014177004A1
WO2014177004A1 PCT/CN2014/076016 CN2014076016W WO2014177004A1 WO 2014177004 A1 WO2014177004 A1 WO 2014177004A1 CN 2014076016 W CN2014076016 W CN 2014076016W WO 2014177004 A1 WO2014177004 A1 WO 2014177004A1
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WO
WIPO (PCT)
Prior art keywords
base station
interface
target base
information
establish
Prior art date
Application number
PCT/CN2014/076016
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English (en)
French (fr)
Inventor
高音
吴蕴璐
黄莹
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/917,690 priority Critical patent/US20160227594A1/en
Priority to EP14792114.2A priority patent/EP3030036B1/en
Publication of WO2014177004A1 publication Critical patent/WO2014177004A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • 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 communications, and in particular, to a method, device and system for establishing a connection. Background technique
  • the home base station In the Long Term Evolution (LTE) system defined by the 3GPP, Third Generation Partnership Projects, the home base station is called HeNB (home eNB) 0 in the LTE RIO version, between HeNBs. There is only an X2 direct interface, and the X2 interface is not supported between the macro base station eNB and the home base station HeNB. In the LTE R1, an X2 gateway (X2 GW) is introduced, and the X2 GW and the HeNB GW are both optional deployments. The X2 interface of the proxy can be established between the eNB and the HeNB, and between the HeNB and the HeNB through the X2 GW. Or do not establish a direct X2 interface through the X2 GW.
  • LTE Long Term Evolution
  • the X2 interface directly established by the HeNB with the neighboring base station is called the direct X2 connection between the HeNB and the neighboring base station. If the X2 GW establishes an X2 interface with the neighboring base station through the X2 GW, we call it an indirect X2 connection.
  • the eNB can discover a cell under a neighboring base station and establish an X2 connection with a neighboring base station by using an Automatic Neighbor Relation (ANR) function. Specifically, after the UE in the eNB cell measures a strong signal of the neighboring cell, the eNB sends a measurement report to the eNB, and after obtaining the measurement report of the neighboring cell, the eNB determines, by using the measurement report, that the neighboring cell is After the macro cell is still the home base station cell and obtains the eNB ID of the base station in the neighboring cell and the Tracking Area Indicator (TLMN ID + TAC) of the neighboring cell, the transport layer (TNL, Transport Network Layer) is initiated.
  • TLMN ID + TAC Tracking Area Indicator
  • an embodiment of the present invention provides a data processing method based on IPTV, a terminal, and a computer storage medium.
  • the present invention provides a method of establishing a connection, the method comprising:
  • the source base station sends a message requesting the opposite end transmission address through the S1 interface
  • the source base station receives a response message requesting a peer transport address
  • the source base station initiates an X2 interface establishment process for the target base station according to the response message.
  • the message for requesting the opposite end transmission address includes: target base station information; and/or type information of the X2 interface established by the source base station and the target base station; wherein, the type information of the X2 interface includes a direct X2 connection or an indirect X2 connection; and/or, the source base station is configured to establish transport layer address information of the X2 interface;
  • the response message includes: a transmission layer address information used by the target base station to establish an X2 interface;
  • the target base station accepts the X2 interface type indication information recommended by the source base station, where the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the source base station initiates an X2 interface establishment process for the target base station according to the response message, and the method includes: the source base station is used to establish according to the information carried in the response information.
  • the transport layer address information of the X2 interface, and/or the transport layer address information of the X2 GW for establishing the X2 interface, and the X2 interface type information between the target base station and the source base station, and determining the X2 connection The type of the port, and the originating base station initiates an X2 interface establishment process for the target base station.
  • the method further includes: determining, by the source base station, the transport layer address information of the X2 interface used by the target base station to establish an X2 interface, whether the X2 GW connected to the target base station and the X2 GW of the target base station are implemented.
  • the interface is established.
  • the generating, by the target base station, the transport layer address information used to establish the X2 interface of the X2 GW connected to the target base station includes: determining, by the target base station, whether the transport layer address information of the X2 GW used to establish the X2 interface is The X2 interface connected to the source base station can be established through the X2 GW connected to itself, and the result of the judgment is generated, that is, the X2 connected to the target base station.
  • the transport layer address information of the GW used to establish the X2 interface is the transport layer address information of the GW used to establish the X2 interface.
  • the present invention provides a method of establishing a connection, the method comprising:
  • the target base station receives a message requesting the peer transmission address through the S1 interface
  • the target base station returns a response message requesting the peer transport address through the S1 interface.
  • the response message includes: a transmission layer address information used by the target base station to establish an X2 interface;
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the method further includes: performing, by the target base station, type information of the X2 interface carried in the message of the requesting peer transmission address, and realizing the type information of the X2 interface by the locally configured target base station and the source base station, A direct X2 interface or an indirect X2 interface is established between the current target base station and the source base station, and the target base station initiates an X2 interface establishment process for the source base station according to the judgment result.
  • the present invention also provides a base station, where the base station includes a transmitting unit, a receiving unit, and Unit; among them,
  • the sending unit is configured to send a message requesting the opposite end transmission address through the S1 interface;
  • the receiving unit is configured to receive a response message requesting the opposite end transmission address;
  • the processing unit is configured to initiate an X2 interface establishment process for the target base station according to the response message.
  • the sending unit is configured to: the target base station information; and/or the type information that is set by the source base station to establish an X2 interface with the target base station; where the type information of the X2 interface includes: direct X2 Connected or indirectly connected to the X2; and/or, the source base station is configured to establish transport layer address information of the X2 interface; and/or, to obtain the type indication information of the X2 interface established by the target base station and the source base station as the request for the opposite end transport address Message.
  • the response message includes: a transmission layer address information used by the target base station to establish an X2 interface;
  • the target base station accepts the X2 interface type indication information recommended by the source base station, where the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the processing unit is configured to: according to the transport layer address information used to establish the X2 interface carried in the response information, and/or the transport layer address information used to establish the X2 interface of the X2 GW, and the target base station.
  • the X2 interface type information between the source base station and the source base station determines the type of the X2 interface, and initiates an X2 interface establishment process for the target base station.
  • the processing unit is configured to determine, according to the transport layer address information used by the X2 GW that the target base station is connected to establish an X2 interface, whether to establish an X2 interface with the target base station by using the X2 GW connected by itself.
  • the generating, by the target base station, the transport layer address information used to establish the X2 interface of the X2 GW connected to the target base station includes: determining, by the target base station, whether the transport layer address information of the X2 GW used to establish the X2 interface is The X2 interface of the source base station can be established through the X2 GW connected to the source, and the result of the judgment is the transport layer address information of the X2 GW connected to the target base station for establishing the X2 interface.
  • the present invention also provides a base station, where the base station includes: a receiving unit and a sending unit;
  • the receiving unit is configured to receive a message requesting the peer transport address through the S1 interface
  • the sending unit is configured to return a response message requesting the peer transport address through the S1 interface.
  • the response message includes: a transport layer address information of the X2 interface established by the target base station,
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the base station further includes: a processing unit, configured to: according to the type information of the X2 interface carried in the message of the requesting peer transmission address received by the receiving unit, and the locally configured target base station and the source base station The type information of the X2 interface determines that a direct X2 interface or an indirect X2 interface is established between the current target base station and the source base station, and the target base station initiates an X2 interface establishment process for the source base station according to the judgment result.
  • a processing unit configured to: according to the type information of the X2 interface carried in the message of the requesting peer transmission address received by the receiving unit, and the locally configured target base station and the source base station.
  • the type information of the X2 interface determines that a direct X2 interface or an indirect X2 interface is established between the current target base station and the source base station, and the target base station initiates an X2 interface establishment process for the source base station according to the judgment result.
  • the present invention also provides a system for establishing a connection, the system comprising: a source base station and a target base station;
  • the source base station is configured to send a message requesting the peer transmission address from the network side through the S1 interface, and receive a response message from the network side to the requesting peer end transmission address sent by the target base station; Deectivating an X2 interface establishment process for the target base station according to the response message; the target base station is configured to receive, by using the S1 interface, a message from the network side that requests the source transmission address from the source base station, and from the network side to the source base station through the S1 interface. Returns a response message requesting the peer's transport address.
  • the method, device and system for establishing a connection are provided by the source base station to send a message requesting a peer transmission address through the S1 interface; receiving a response message requesting the opposite end transmission address; and initiating an X2 interface facing the target base station according to the response message Establish a process.
  • the source base station can determine the connection mode with the target base station according to the obtained address response message, and initiate an X2 interface establishment process with the target base station, thereby effectively improving network performance.
  • FIG. 1 is a schematic flow chart of a method of a source base station side in a method for establishing a connection according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a target base station side in a method for establishing a connection according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic flowchart of a method for establishing a connection according to Embodiment 3 of the present invention.
  • Embodiment 4 is a schematic flow chart of a method according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic flowchart of a method according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a system for establishing a connection according to Embodiment 8 of the present invention.
  • Figure 8 shows the home base station network architecture in the case of a standalone X2 gateway deployment.
  • the source base station sends a message requesting the peer end transmission address through the S1 interface, receives a response message requesting the peer end transmission address, and initiates an X2 interface establishment procedure for the target base station according to the response message.
  • the operation flow of the source base station side in the method for establishing a connection provided by the embodiment of the present invention is as shown in the figure.
  • Step 101 The source base station sends a message requesting the peer transmission address through the S1 interface.
  • the message that sends the requesting end-to-end transmission address may send the message requesting the peer-to-peer transmission address through its own configuration transmission message.
  • the message for requesting the peer transmission address includes: target base station information, where the target base station information may be an identifier of the target base station;
  • the type information set by the source base station to establish an X2 interface with the target base station and/or, the source base station is configured to establish IP address information of the X2 interface;
  • the type information of the X2 interface may include: a direct X2 connection or an indirect X2 connection;
  • the IP address information used by the source base station to establish the X2 interface includes: one or more transport layer address information; for example, when the source base station is configured with the X2 GW of the connected X2 GW for establishing the IP address information of the X2 interface.
  • the plurality of X2 GWs are used to establish IP address information of the X2 interface; or, the type indication information that is required to acquire the X2 interface of the target base station and the source base station is required to be carried. .
  • Step 102 The source base station receives a response message requesting a peer transport address.
  • the response message includes: a transport layer address information used by the target base station to establish an X2 interface,
  • the IP address information of the port includes the transport layer address information of the connected X2 GW for establishing the X2 interface;
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • Step 103 The source base station initiates an X2 interface establishment process for the target base station according to the response message.
  • the source base station is configured according to the transport layer address information used to establish the X2 interface carried in the response information, and/or the transport layer address information used by the X2 GW to establish an X2 interface, and the target base station and the source base station.
  • the X2 interface type information between the two determines the type of the X2 interface, and initiates an X2 interface establishment process for the target base station.
  • the method further includes: the source base station determining, according to the transport layer address information of the X2 GW used by the target base station to establish an X2 interface, whether the X2 GW can be implemented by itself and the eNB.
  • the X2 interface is established.
  • the method for generating the transport layer address information of the X2 interface that is connected to the X2 GW to which the target base station is connected includes: determining, by the target base station, the transport layer address information of the X2 GW used to establish the X2 interface, whether it can pass its own
  • the connected X2 GW is implemented to establish an X2 interface with the source base station, and generates a transmission layer address information for establishing an X2 interface of the X2 GW to which the target base station is connected.
  • the source base station may be a home base station or a macro base station. If the source base station is a home base station and is connected to the home base station gateway, the message sent by the S1 interface needs to be sent to the home base station network management system by the source base station, and is transparently transmitted by the home base station gateway to the target base station; or, the S1 interface The sent message needs to be transparently transmitted to the core network through the home base station gateway, and forwarded to the target base station by the core network.
  • the core network may include a mobility management unit (MME).
  • MME mobility management unit
  • the operation flow of the target base station side in the method for establishing a connection provided by the embodiment of the present invention, such as As shown in Figure 2, it includes:
  • Step 201 The target base station receives a message requesting the peer transmission address through the S1 interface.
  • the target base station determines whether the response is successful, and if yes, returns a successful response message; otherwise, returns a failed response message.
  • the response message includes: the target base station is configured to establish one or more IP address information of the X2 interface;
  • the successful response message may further include: establishing type information of the X2 interface with the source base station; and/or, if the IP address information of the connected X2 GW of the connected X2 GW configured by the target base station is established, One or more IP address information of the X2 GW to which the target base station is connected to establish an X2 interface.
  • the type information of the X2 interface established with the source base station is: a direct X2 connection or an indirect X2 connection.
  • the home base station gateway connected to the target base station is also required to perform S1 interface message transparent transmission and forwarding; if the source base station and the target base station are both home base stations, and both Connected to the home base station gateway, the same processing is done.
  • the determining whether the response is successful comprises: determining, by the target base station, that the type information of the X2 interface carried in the message requesting the peer transmission address is inconsistent with the source side, determining that the response is a failure, and the target base station is in the The failure response message carries the indication information of the X2 interface type rejection.
  • the target base station implements an X2 interface according to the type information of the X2 interface carried in the message for requesting the peer transmission address, and the locally set target base station and the source base station.
  • the type information determines that a direct X2 interface or an indirect X2 interface is established between the current target base station and the source base station.
  • the target base station may initiate an X2 interface establishment process for the source base station according to the decision result.
  • the process of establishing the X2 interface is a prior art, and details are not described herein.
  • the target base station may be a macro base station or a home base station.
  • This embodiment provides an example. Assume that the eNB is the source base station and the HeNB is the target base station, and the method for establishing a connection, as shown in FIG. 3, includes:
  • Step 301 The UE managed by the eNB detects the cell under the HeNB, and the UE notifies the eNB that an X2 connection needs to be established with the HeNB.
  • Step 302 The eNB sends a message requesting the peer transmission address to the MME by using its own base station configuration transmission message.
  • the message requesting the peer transport address includes: target HeNB information, type information set by the eNB and establishing an X2 interface with the target HeNB; and type information of the X2 interface includes (representing the use between the source base station and the target base station) Direct X2 connection or indirect X2 connection, the type information can be lbit indication information, such as 0 for direct X2 connection and 1 for indirect X2 connection.
  • the message requesting the peer transport address may further include: one or more IP address information carried by the eNB for establishing the X2 interface, and/or one or more IPs of the X2 GW to which the X2 GW is connected to establish the X2 interface. Address information;
  • the one or more IP address information used by the X2 GW connected to the X2 GW to establish the X2 interface may be used by the HeNB to determine whether the X2 GW implementation of the eNB and the X2 interface of the eNB can be established.
  • Step 303 The MME determines whether the target HeNB is connected to the HeNB GW. If yes, the MME sends a request to the HeNB GW by using its own MME configuration transmission message. The peer transmits the message of the address, and then performs step 304; otherwise, step 305 is performed.
  • Step 304 The HeNB GW delivers a message requesting the peer transport address to the HeNB, and performs step 306.
  • Step 305 The MME sends a message requesting the peer transmission address to the HeNB through its own MME configuration transmission message.
  • Step 306 After the HeNB receives the message requesting the peer transport address, if the connection is under the HeNB GW, the configuration response message transmits its own transport layer address information for establishing the X2 interface to the HeNB GW, and step 307 is performed; Otherwise, go to step 308.
  • the response message includes: one or more IP address information used by the target HeNB to establish an X2 interface.
  • the response information may further include: type information set by the target HeNB to establish an X2 interface with the source eNB, and/or one or more IP address information of the X2 GW to which the X2 GW is connected to establish an X2 interface.
  • Step 307 The HeNB GW transparently transmits the response message to the MME, and performs step 309.
  • Step 309 The MME transmits the response message to the s muscle through the MME configuration transmission message.
  • Step 310 The eNB performs, according to the transport layer address information used by the HeNB to establish an X2 interface, and/or the transport layer address information used by the X2 GW to establish an X2 interface, and the X2 between the target HeNB and the eNB according to the information carried in the response message.
  • the interface type information establishes an X2 connection.
  • the IP address information of the X2 GW for establishing the X2 interface may be included in the request and response message.
  • the target base station may carry the indication message in the response message.
  • Interest such as X2 interface type accept or reject.
  • the source base station may carry the request information to obtain the type information of the X2 interface that the target base station establishes with the source base station, for example, carrying the information of the X2 interface type, and the target base station may carry the target in the response message according to the indication information.
  • the base station establishes type information of the X2 interface with the source base station.
  • the HeNB is the source base station
  • the eNB is the target base station.
  • the method for establishing a connection provided in this embodiment is as shown in FIG. 4, and the specific steps are as follows:
  • Step 401 The UE in the HeNB detects the cell under the eNB, and needs to initiate an X2 connection with the eNB. If the HeNB is connected to the HeNB GW, go to step 402; otherwise, go to step 404.
  • Step 402 The HeNB sends a base station configuration transmission message to the HeNB GW to send a message requesting the opposite end transmission address.
  • the message for transmitting the requesting peer-to-peer address includes the target eNB information, and the type information set by the HeNB to establish an X2 interface with the target eNB (indicating that a direct X2 connection or an indirect X2 connection is used between the source base station and the target base station, the type
  • the information may be lbit indication information, such as 0 for direct X2 connection and 1 for indirect X2 connection);
  • the message requesting the peer transport address may optionally carry the IP address information (including one or more transport layer address information) used by the source HeNB to establish an X2 interface, and the X2 GW connected thereto is used to establish an X2 interface.
  • IP address information (including one or more transport layer address information), wherein the X2 GW carrying the IP address information used to establish the X2 interface can be used for the eNB to establish an X2 interface between the X2 GW and the X2 GW.
  • Step 403 The HeNB GW delivers the message requesting the peer transport address to the MME by using the base station configuration transmission message, and performs step 405.
  • Step 404 The HeNB sends a base station configuration transmission message to the MME for requesting the opposite end transmission. Address message.
  • the request message includes the target eNB information, and the type information set by the HeNB to establish an X2 interface with the target eNB (indicating that a direct X2 connection or an indirect X2 connection is used between the source base station and the target base station, the type information may be lbit Indication information, such as 0 for direct X2 connection, 1 for indirect X2 connection; optional carrying source HeNB for establishing IP address information of the X2 interface (including one or more transport layer address information), if the source HeNB is configured to connect
  • the IP address information of the X2 GW for establishing the X2 interface may also include the IP address information (including one or more transport layer address information) of the X2 GW to which the X2 GW is connected to establish the X2 interface.
  • the IP address information used by the X2 GW to establish the X2 interface may be used for establishing an X2 interface between the eNB and the X2 GW.
  • Step 405 The MME forwards the message to the target e muscle according to the message carrying the target eNB information.
  • Step 406 After receiving the MME configuration transmission message, the eNB constructs a base station configuration message, and sends its own transport layer address information for establishing the X2 interface to the MME.
  • the response message carries the IP address information (including one or more transport layer address information) used by the target eNB to establish an X2 interface;
  • the response message includes the type information that is set by the target eNB to establish an X2 interface with the source HeNB (indicating that a direct X2 connection or an indirect X2 connection is used between the current eNB and the HeNB, and the type information may be an indication of lbit.
  • Information such as 0 for direct X2 connection, 1 for indirect X2 connection), if the eNB itself configures the X2 GW's IP address information for establishing the X2 interface, it can also include the connection in the request response message.
  • the IP address information of the X2 GW used to establish the X2 interface (including one or more transport layer address information), wherein the IP address information of the X2 GW used to establish the X2 interface can be used by the HeNB to determine whether the connection can be made by itself.
  • the X2 GW implementation is established with the X2 interface of the eNB.
  • Step 407 The MME parses the received base station configuration transmission message. If the target HeNB is connected to the HeNB GW, the MME transparently transmits the base station configuration transmission message to the HeNB GW, and performs step 408; otherwise, proceeds to step 409.
  • Step 408 The HeNB GW forwards the base station configuration transmission message to the HeNB, and performs step 410.
  • Step 409 The MME delivers the message to the HeNB through the MME configuration transmission message.
  • Step 410 The HeNB establishes according to the transport layer address information used by the HeNB to establish the X2 interface, the transport layer address information of the X2 GW for establishing the X2 interface, and the X2 interface type information between the target eNB and the HeNB.
  • the source HeNB is connected to the X2 of the target eNB.
  • the IP address information of the X2 GW for establishing the X2 interface may be included in the request and response message.
  • the target base station determines that the type information of the X2 interface carried in the request message is inconsistent with the source side, and the target base station may carry the indication information in the response message, for example, the X2 interface type accepts or rejects.
  • the source base station may carry the request information to obtain the type information of the X2 interface that the target base station establishes with the source base station, for example, carrying the information of the X2 interface type, and the target base station may carry the target in the response message according to the indication information.
  • the base station establishes type information of the X2 interface with the source base station.
  • HeNB 1 is a source base station
  • HeNB 2 is a target base station
  • HeNB 1 and HeNB 2 are connected to the same HeNB GW.
  • FIG. 5 the specific steps of the method for establishing a connection in this embodiment are as follows:
  • Step 501 The UE under the HeNB1 detects the cell under the HeNB2, and needs to initiate an X2 connection with the HeNB2.
  • Step 502 The HeNB1 sends a base station configuration transmission message to the HeNB GW, where it is used to request to acquire the transport layer address information used by the target HeNB2 to establish an X2 interface.
  • the request message includes the target HeNB2 information, and the type information set on the HeNB 1 to establish an X2 interface with the target HeNB2 (indicating that a direct X2 connection or an indirect X2 connection is used between the source base station and the target base station, the type information may be lbit.
  • the indication information such as 0 means direct X2 connection, 1 means indirect X2 connection
  • optional carrying source HeNB1 is used to establish IP address information of the X2 interface (including one or more transport layer address information), if the source HeNB1 itself is configured
  • the IP address information of the connected X2 GW for establishing the X2 interface may also include the IP address information (including one or more transport layer address information) of the X2 GW to which the X2 interface is connected to establish the X2 interface.
  • the IP address information used by the X2 GW to establish the X2 interface may be used by the HeNB 2 to determine whether the X2 GW can be established through the X2 GW connected to itself and the X2 interface of the HeNB1.
  • Step 503 The HeNB GW delivers the message to the HeNB2 through the MME configuration transmission message.
  • Step 504 After receiving the MME configuration transmission message, the HeNB2 constructs a base station configuration message to send its own transport layer address information for establishing the X2 interface to the MME.
  • the request response message carries the IP address information (including one or more transport layer address information) that the target HeNB2 uses to establish the X2 interface, and optionally includes the type information set by the target HeNB2 to establish an X2 interface with the source HeNB1 (representing the current A direct X2 connection or an indirect X2 connection is used between HeNB2 and HeNB1.
  • the type information may be lbit indication information, such as 0 for direct X2 connection and 1 for indirect X2 connection.
  • the request response message may also include the IP address information (including one or more transport layer address information) of the X2 GW to which the X2 GW is connected, which is carried in the request response message.
  • the IP address information used by the X2 GW to establish the X2 interface can be used by the HeNB1 to determine whether it can connect through itself.
  • the X2 GW implementation is established with the X2 interface of HeNB2.
  • Step 505 The HeNB GW parses the received base station configuration transmission message, and transparently transmits the base station configuration transmission message to the HeNB1.
  • Step 506 The HeNB1 is configured to establish the transport layer address information of the X2 interface, the transport layer address information of the X2 GW for establishing the X2 interface, and the X2 interface type information between the target HeNB2 and the HeNB 1 according to the HeNB2 carried therein. An X2 connection of the source HeNB 1 and the target HeNB 2 is established.
  • the IP address information of the X2 GW for establishing the X2 interface may be included in the request and response message.
  • the target base station determines that the type information of the X2 interface carried in the request message is inconsistent with the source side, and the target base station may carry the indication information in the response message, for example, the X2 interface type accepts or rejects.
  • the source base station may carry the request information to obtain the type information of the X2 interface that the target base station establishes with the source base station, for example, carrying the information of the X2 interface type, and the target base station may carry the target in the response message according to the indication information.
  • the present invention further provides a base station.
  • the base station includes: a sending unit 61, a receiving unit 62, and a processing unit 63;
  • the sending unit 61 is configured to send a message requesting the peer transport address through the S1 interface, and the receiving unit 62 is configured to receive a response message requesting the peer transport address;
  • the processing unit 63 is configured to send a message requesting the peer transport address to the sending unit 61, and determine the type of the X2 interface according to the response message received by the receiving unit 62.
  • the message for requesting the peer transmission address includes: target base station information; and/or type information of the X2 interface established by the source base station with the target base station;
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection; and/or, the source base station is configured to establish IP address information of the X2 interface;
  • the response message includes: the IP address information used by the target base station to establish the X2 interface, and/or the type information set by the target base station to establish an X2 interface with the source base station, and/or the X2 GW connected to the target base station. Establishing the IP address information of the X2 interface,
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the processing unit 63 is configured to: according to the transport layer address information used to establish the X2 interface carried in the response information, and/or the transport layer address information used to establish the X2 interface of the X2 GW, and the target base station and the source base station
  • the type information of the X2 interface determines the type of the X2 interface.
  • the processing unit 63 is configured to determine, according to the transport layer address information of the X2 GW used by the target base station to establish the X2 interface, whether the X2 GW implementation of the self-connected connection and the X2 interface of the target base station are established.
  • the method for generating the transport layer address information of the X2 interface that is connected to the X2 GW to which the target base station is connected includes: determining, by the target base station, the transport layer address information of the X2 GW used to establish the X2 interface, whether it can pass its own
  • the connected X2 GW is implemented to establish an X2 interface with the source base station, and generates a transmission layer address information for establishing an X2 interface of the X2 GW to which the target base station is connected.
  • the transmitting unit 61 and the receiving unit 62 may each be implemented by an antenna, a CPU, an antenna, and a DSP.
  • the processing unit 63 may be implemented by hardware such as a DSP or a CPU.
  • the base station provided by the embodiment of the present invention may also be used as a target base station, including: a receiving unit, configured to receive a message requesting a peer transport address through the S1 interface; and a sending unit configured to return a response message requesting the peer transport address through the S1 interface.
  • the response message includes: the IP address information used by the target base station to establish the X2 interface, and/or the type information set by the target base station to establish an X2 interface with the source base station, and/or the X2 GW connected to the target base station. Establishing the IP address information of the X2 interface,
  • the type information of the X2 interface includes: a direct X2 connection or an indirect X2 connection.
  • the base station further includes: a processing unit, configured to: according to the type information of the X2 interface carried in the message of the requesting peer transmission address received by the receiving unit, and the type of the X2 interface implemented by the locally configured target base station and the source base station The information is determined to establish a direct X2 interface or an indirect X2 interface between the current target base station and the source base station, and the target base station initiates an X2 interface establishment process for the source base station according to the decision result.
  • a processing unit configured to: according to the type information of the X2 interface carried in the message of the requesting peer transmission address received by the receiving unit, and the type of the X2 interface implemented by the locally configured target base station and the source base station The information is determined to establish a direct X2 interface or an indirect X2 interface between the current target base station and the source base station, and the target base station initiates an X2 interface establishment process for the source base station according to the decision result.
  • the base station provided in this embodiment can be used as a target base station, and its component structure diagram can be as shown in FIG. 6. Example VIII.
  • the system provided by the present invention includes: a source base station 71 and a target base station 72;
  • the source base station 71 is configured to send a message requesting the peer transport address from the network side through the S1 interface, and receive a response message from the network side requesting the peer transport address sent by the target base station; and determine the type of the X2 interface according to the response message. ;
  • the target base station 72 is configured to receive, by using the S1 interface, a message from the network side that requests the peer transmission address from the source base station, and returns a response message requesting the opposite end transmission address from the network side to the source base station through the S1 interface.
  • the system provided by the embodiment of the present invention may be a home base station network architecture in the case of an independent X2 gateway deployment as shown in FIG. 8.

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Abstract

本发明公开了一种建立连接的方法、装置及系统。所述方法包括以下步骤：源基站通过S1接口发送请求对端传输地址的消息（101）；所述源基站接收请求对端传输地址的响应消息（102）；所述源基站根据所述响应消息发起面向目标基站的X2接口建立流程（103）。

Description

一种建立连接的方法、 装置及系统 技术领域
本发明涉及通信领域， 尤其涉及一种建立连接的方法、 装置及系统。 背景技术
第三代伙伴组织计划 （ 3GPP， Third Generation Partnership Projects )标 准组织定义的长期演进（ LTE， Long Term Evolution ) 系统中， 家庭基站被 称为 HeNB ( home eNB )0 在 LTE RIO版本中， HeNB之间仅存在 X2直接 接口， 而宏基站 eNB和家庭基站 HeNB间不支持 X2接口。在 LTE Rl 1中， 引入了 X2网关（X2 GW )， 所述 X2 GW与 HeNB GW类似均为可选部署， eNB和 HeNB之间、 HeNB和 HeNB之间可通过 X2 GW建立代理的 X2接 口， 或者不通过 X2 GW建立直接的 X2接口。 HeNB直接与相邻基站建立 的 X2接口， 我们称为 HeNB和相邻基站之间的直接 X2连接； 若 X2 GW 与该相邻基站通过 X2 GW建立 X2接口， 我们称为间接 X2连接。
目前， eNB可通过自动邻接关系 （ ANR， Automatic Neighbor Relation ) 功能发现相邻基站下的小区并与相邻基站建立 X2连接。具体的， eNB小区 下的 UE测量到相邻小区的较强信号后， 发送测量报告给 eNB， eNB获得 该相邻小区的所述测量报告后， 通过所述测量报告判断所述相邻小区为宏 小区还是家庭基站小区并获得相邻小区中基站的 eNB ID、 和该相邻小区的 跟踪区指示（ TAI， Tracking Area Indicator ) ( PLMN ID + TAC )后， 发起传 输层（TNL， Transport Network Layer )地址发现过程， 以获得该相邻 HeNB 小区的建立 X2连接的传输层地址。
但是， 上述建立连接的过程中， 无法使得基站之间通过 TNL地址发现 流程实现判决直接或者间接 X2连接方式， 所以无法有效提高网络性能。 发明内容
为解决上述技术问题，本发明实施例提供了一种基于 IPTV的数据处理 方法、 终端及计算机存储介质。
本发明提供了一种建立连接的方法， 该方法包括：
源基站通过 S1接口发送请求对端传输地址的消息；
所述源基站接收请求对端传输地址的响应消息；
所述源基站根据所述响应消息发起面向目标基站的 X2接口建立流 程。
上述方案中， 所述请求对端传输地址的消息包括： 目标基站信息； 和 /或， 所述源基站设定的与目标基站建立 X2接口的类型信息； 其 中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连接； 和 /或， 所述源基站用于建立 X2接口的传输层地址信息；
和 /或， 要求获取目标基站与源基站建立 X2接口的类型指示信息。 上述方案中， 所述响应消息包括： 目标基站用于建立 X2接口的传 输层地址信息；
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息；
和 /或， 目标基站是否接受源基站建议的 X2接口类型指示信息； 其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
上述方案中，所述源基站根据所述响应消息发起面向目标基站的 X2 接口建立流程， 包括： 所述源基站根据所述响应信息中携带的用于建立
X2接口的传输层地址信息、 和 /或 X2 GW的用于建立 X2接口的传输层 地址信息、 以及目标基站和源基站之间的 X2接口类型信息， 确定 X2接 口的类型， 并由源基站发起面向目标基站的 X2接口建立流程。
上述方案中， 所述方法还包括： 所述源基站根据所述目标基站所连 接的 X2 GW的用于建立 X2接口的传输层地址信息，判断是否通过自身 连接的 X2 GW实现和目标基站的 X2接口建立。
上述方案中，所述目标基站所连接的 X2 GW的用于建立 X2接口的 传输层地址信息的生成包括： 所述目标基站根据携带的 X2 GW的用于 建立 X2接口的传输层地址信息判断是否可以通过自身连接的 X2 GW实 现和源基站的 X2 接口建立， 并生成判断结果即目标基站所连接的 X2
GW的用于建立 X2接口的传输层地址信息。
本发明提供了一种建立连接的方法， 所述方法包括：
目标基站通过 S1接口接收请求对端传输地址的消息；
所述目标基站通过 S1接口返回请求对端传输地址的响应消息。 上述方案中， 所述响应消息包括： 目标基站用于建立 X2接口的传 输层地址信息；
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息；
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
上述方案中， 所述方法还包括： 所述目标基站根据所述请求对端传 输地址的消息中携带的 X2接口的类型信息、 以及本地设定的目标基站 和源基站实现 X2接口的类型信息， 判决当前目标基站和源基站之间建 立直接 X2接口或间接 X2接口， 由目标基站根据判决结果， 发起面向源 基站的 X2接口建立流程。
本发明还提供了一种基站， 所述基站包括发送单元、 接收单元和处 理单元； 其中，
发送单元， 配置为通过 S1接口发送请求对端传输地址的消息； 接收单元， 配置为接收请求对端传输地址的响应消息；
处理单元， 配置为根据所述响应消息发起面向目标基站的 X2接口 建立流程。
上述方案中， 所述发送单元， 配置为将目标基站信息； 和 /或， 所述 源基站设定的与目标基站建立 X2接口的类型信息； 其中， 所述 X2接口 的类型信息包括： 直接 X2连接或者间接 X2连接； 和 /或， 所述源基站 用于建立 X2接口的传输层地址信息； 和 /或， 要求获取目标基站与源基 站建立 X2接口的类型指示信息作为请求对端传输地址的消息。
上述方案中， 所述响应消息包括： 目标基站用于建立 X2接口的传 输层地址信息；
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息；
和 /或， 目标基站是否接受源基站建议的 X2接口类型指示信息； 其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
上述方案中， 所述处理单元， 配置为根据所述响应信息中携带的用 于建立 X2接口的传输层地址信息、和 /或 X2 GW的用于建立 X2接口的 传输层地址信息、 以及目标基站和源基站之间的 X2接口类型信息， 确 定 X2接口的类型， 发起面向目标基站的 X2接口建立流程。
上述方案中， 所述处理单元， 配置为根据所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信息， 判断是否通过自身连接的 X2 GW实现和目标基站的 X2接口建立。 上述方案中，所述目标基站所连接的 X2 GW的用于建立 X2接口的 传输层地址信息的生成包括： 所述目标基站根据携带的 X2 GW的用于 建立 X2接口的传输层地址信息判断是否可以通过自身连接的 X2 GW实 现和源基站的 X2 接口建立， 并生成判断结果即目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信息。
本发明还提供了一种基站， 所述基站包括： 接收单元和发送单元； 其中，
接收单元， 配置为通过 S1接口接收请求对端传输地址的消息； 发送单元， 配置为通过 S1接口返回请求对端传输地址的响应消息。 上述方案中， 所述响应消息包括： 目标基站的建立 X2接口的传输 层地址信息，
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息， 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息，
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
上述方案中， 所述基站还包括： 处理单元， 配置为根据接收单元收 到的所述请求对端传输地址的消息中携带的 X2接口的类型信息、 以及 本地设定的目标基站和源基站实现 X2接口的类型信息， 判决当前目标 基站和源基站之间建立直接 X2接口或间接 X2接口，由目标基站根据判 决结果， 发起面向源基站的 X2接口建立流程。
本发明还提供了一种建立连接的系统， 所述系统包括： 源基站和目 标基站； 其中，
源基站， 配置为通过 S1 接口从网络侧发送请求对端传输地址的消 息； 以及从网络侧接收目标基站发来的请求对端传输地址的响应消息； 根据所述响应消息发起面向目标基站的 X2接口建立流程； 目标基站，配置为通过 S1接口从网络侧接收源基站发来的请求对端 传输地址的消息，以及通过 S1接口从网络侧向源基站返回请求对端传输 地址的响应消息。
本发明所提供建立连接的方法、 装置及系统， 由源基站通过 S1 接口 发送请求对端传输地址的消息； 接收请求对端传输地址的响应消息； 根 据所述响应消息发起面向目标基站的 X2接口建立流程。如此， 能使得源 基站根据获取到的地址响应消息， 确定与目标基站的连接方式， 并发起与 目标基站的 X2接口建立流程， 从而有效的提高网络性能。 附图说明
图 1 为本发明实施例一建立连接的方法中源基站侧的方法流程示意 图；
图 2 为本发明实施例二建立连接的方法中目标基站侧的流程示意 图；
图 3为本发明实施例三建立连接的方法流程示意图；
图 4为本发明实施例四方法流程示意图；
图 5为本发明实施例五方法流程示意图；
图 6为本发明实施例六基站组成结构示意图；
图 7为本发明实施例八建立连接的系统组成结构示意图；
图 8为独立 X2网关部署情况下的家庭基站网络架构。 具体实施方式
本发明实施例的基本思想是：源基站通过 S1接口发送请求对端传输 地址的消息； 接收请求对端传输地址的响应消息； 根据所述响应消息发 起面向目标基站的 X2接口建立流程。 下面结合附图及具体实施例对本发明再作进一步详细的说明。
实施例一、
本发明实施例提供的建立连接的方法中源基站侧的操作流程， 如图
1所示， 包括：
步骤 101 : 源基站通过 S1接口发送请求对端传输地址的消息。 这里， 所述发送请求对端传输地址的消息可以通过自身的配置传输 消息发送所述请求对端传输地址的消息。
所述请求对端传输地址的消息包括： 目标基站信息， 所述目标基站 信息可以为目标基站的标识；
和 /或， 所述源基站设定的与目标基站建立 X2接口的类型信息； 和 /或， 所述源基站用于建立 X2接口的 IP地址信息；
和 /或， 要求获取目标基站与源基站建立 X2接口的类型指示信息。 其中， 所述 X2接口的类型信息可以包括： 直接 X2连接或者间接 X2连接；
所述源基站用于建立 X2接口的 IP地址信息包含： 一个或多个传输 层地址信息； 比如， 当源基站配置有所连接的 X2 GW的用于建立 X2接 口的 IP地址信息。
优选地，当自身配置的所连接的 X2 GW有多个时，包含多个 X2 GW 的用于建立 X2接口的 IP地址信息； 或者， 携带要求获取目标基站与源 基站建立 X2接口的类型指示信息。
步骤 102: 所述源基站接收请求对端传输地址的响应消息。
这里， 所述响应消息包括： 目标基站用于建立 X2接口的传输层地 址信息，
和 /或， 目标基站设定的、 与源基站建立 X2接口的类型信息， 和 /或， 若目标基站自身配置的所连接的 X2 GW的用于建立 X2接 口的 IP地址信息， 则包含所连接的 X2 GW的用于建立 X2接口的传输 层地址信息；
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
步骤 103 : 所述源基站根据所述响应消息发起面向目标基站的 X2 接口建立流程。
具体的， 所述源基站根据所述响应信息中携带的用于建立 X2接口 的传输层地址信息、 和 /或 X2 GW的用于建立 X2接口的传输层地址信 息、 以及目标基站和源基站之间的 X2接口类型信息， 确定 X2接口的类 型， 发起面向目标基站的 X2接口建立流程。
优选地， 执行步骤 103之前， 还可以包括： 所述源基站根据所述目 标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信息，判断是 否可以通过自身连接的 X2 GW实现和 eNB的 X2接口建立。
所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信 息的生成方法包括： 所述目标基站根据携带的 X2 GW的用于建立 X2接 口的传输层地址信息判断是否可以通过自身连接的 X2 GW实现和源基 站的 X2接口建立，并生成判断结果即目标基站所连接的 X2 GW的用于 建立 X2接口的传输层地址信息。
上述源基站可以是家庭基站也可以是宏基站。 若所述源基站为家庭 基站、且连接在家庭基站网关下， 则 S 1接口发出的消息需要通过源基站 发送到家庭基站网管， 由家庭基站网关透传给目标基站； 或者， 所述 S1 接口发出的消息需要通过家庭基站网关透传给核心网， 由所述核心网转 发给目标基站。 其中， 所述核心网可以包括移动管理单元 （MME ) 。 实施例二、
本发明实施例提供的建立连接的方法中目标基站侧的操作流程， 如 图 2所示， 包括：
步骤 201 : 目标基站通过 S1接口接收请求对端传输地址的消息。 步骤 202: 所述目标基站通过 S1接口返回请求对端传输地址的响应 消息。
具体的， 所述目标基站收到所述请求对端传输地址的消息后， 判断 是否成功响应， 若是， 则返回成功的响应消息； 否则， 返回失败的响应 消息。
这里， 所述响应消息包括： 所述目标基站用于建立 X2接口的一个 或多个 IP地址信息；
所述成功的响应消息还可以包括： 与源基站建立 X2接口的类型信 息； 和 /或， 若目标基站自身配置的所连接的 X2 GW的用于建立 X2接 口的 IP地址信息， 则包含所述目标基站自身所连接的 X2 GW的用于建 立 X2接口的一个或多个 IP地址信息。
其中， 所述与源基站建立 X2接口的类型信息为： 直接 X2连接或者 间接 X2连接。
优选地， 若目标基站为家庭基站、 且连接在家庭基站网关下， 也需 要通过目标基站所连接的家庭基站网关进行 S1接口消息透传转发；若源 基站和目标基站都是家庭基站， 且都连接在家庭基站网关下， 则做相同 处理。
优选地， 所述判断是否成功响应包括： 所述目标基站对所述请求对 端传输地址的消息中携带的 X2接口的类型信息判决结果和源侧不一致， 则判定为失败响应， 目标基站在所述失败响应消息中携带 X2接口类型 拒绝的指示信息。
优选地， 所述目标基站根据所述请求对端传输地址的消息中携带的 X2接口的类型信息， 以及本地设定的目标基站和源基站实现 X2接口的 类型信息， 判决当前目标基站和源基站之间建立直接 X2接口或间接 X2 接口， 判决完成后可以由目标基站根据判决结果发起面向源基站的 X2 接口建立流程。 其中， 所述 X2接口建立流程为现有技术， 这里不做赘 述。
上述目标基站可以是宏基站也可以是家庭基站。 实施例三、
本实施例提供一个示例， 假设 eNB为源基站， HeNB为目标基站， 则建立连接的方法， 如图 3所示， 包括：
步骤 301 : eNB管理的任意一个 UE检测到 HeNB下的小区， 所述 UE通知 eNB需要与 HeNB建立 X2连接。
步骤 302 : eNB通过自身的基站配置传输消息向 MME发送请求对 端传输地址的消息。
其中， 所述请求对端传输地址的消息包含： 目标 HeNB信息、 eNB 设定的与目标 HeNB建立 X2接口的类型信息；所述 X2接口的类型信息 包括（表示源基站和目标基站之间釆用直接 X2连接或者间接 X2连接， 该类型信息可以是 lbit的指示信息， 比如 0表示直接 X2连接， 1表示间 接 X2连接。
所述请求对端传输地址的消息还可以包含： 携带 eNB用于建立 X2 接口的一个或多个 IP地址信息，和 /或自身所连接的 X2 GW的用于建立 X2接口的一个或多个 IP地址信息；
其中，所述自身所连接的 X2 GW的用于建立 X2接口的一个或多个 IP地址信息可以用于 HeNB判断是否可以通过自身连接的 X2 GW实现 和 eNB的 X2接口建立。
步骤 303 : 所述 MME判断目标 HeNB是否连接在 HeNB GW下， 若是， 则 MME通过自身的 MME配置传输消息向 HeNB GW发送请求 对端传输地址的消息， 然后执行步骤 304; 否则， 执行步骤 305。
步骤 304:所述 HeNB GW将请求对端传输地址的消息传递给 HeNB， 执行步骤 306。
步骤 305:所述 MME通过自身的 MME配置传输消息向 HeNB发送 请求对端传输地址的消息。
步骤 306: 所述 HeNB接收到请求对端传输地址的消息后， 若连接 在 HeNB GW下， 则构造响应消息将自身的用于建立 X2接口的传输层 地址信息发送给 HeNB GW， 执行步骤 307; 否则， 转步骤 308。
所述响应消息包括： 目标 HeNB用于建立 X2接口的一个或多个 IP 地址信息。
所述响应信息还可以包括： 目标 HeNB设定的与源 eNB建立 X2接 口的类型信息， 和 /或自身所连接的 X2 GW的用于建立 X2接口的一个 或多个 IP地址信息。
步骤 307: HeNB GW将所述响应消息透传给 MME， 执行步骤 309。 步骤 308: HeNB构造响应消息将自身的用于建立 X2接口的传输层 地址信息发送给 MME。
步骤 309:所述 MME通过 MME配置传输消息将所述响应消息传递 给 s肌
步骤 310: eNB根据所述响应消息中携带的 HeNB用于建立 X2接口 的传输层地址信息、 和 /或 X2 GW的用于建立 X2接口的传输层地址信 息、 以及目标 HeNB和 eNB之间的 X2接口类型信息建立 X2连接。
优选地， 若基站上配置的其所连接的 X2 GW有多个， 则可以在请 求、 响应消息中包含多个 X2 GW的用于建立 X2接口的 IP地址信息。
优选地， 若所述目标基站对请求消息中携带的 X2接口的类型信息 判决结果和源侧不一致， 则目标基站可以在所述响应消息中携带指示信 息， 比如 X2接口类型接受或者拒绝。
优选地， 所述源基站可以在请求消息中携带要求获取目标基站与源 基站建立 X2接口的类型信息， 比如携带获取 X2接口类型指示信息， 目 标基站根据指示信息可以在所述响应消息中携带目标基站与源基站建立 X2接口的类型信息。 实施例四、
本实施例中假设 HeNB为源基站， eNB为目标基站， 则本实施例提 供的建立连接的方法如图 4所示， 具体步骤如下：
步骤 401 : HeNB下 UE检测到 eNB下的小区， 并需要发起与 eNB 建立 X2连接， 若 HeNB连接到 HeNB GW， 则转步骤 402 ; 否则， 转步 骤 404。
步骤 402 : HeNB给 HeNB GW发送基站配置传输消息用于发送请求 对端传输地址的消息。
该发送请求对端传输地址的消息包含目标 eNB信息， 以及 HeNB上 设定的与目标 eNB建立 X2接口的类型信息 （表示源基站和目标基站之 间釆用直接 X2连接或者间接 X2连接，该类型信息可以是 lbit的指示信 息， 比如 0表示直接 X2连接， 1表示间接 X2连接 ) ；
优选地， 所述请求对端传输地址的消息可选携带源 HeNB用于建立 X2接口的 IP地址信息 (包含一个或多个传输层地址信息） ， 其所连接 的 X2 GW的用于建立 X2接口的 IP地址信息 （包含一个或多个传输层 地址信息） ， 其中携带的 X2 GW的用于建立 X2接口的 IP地址信息可 以用于 eNB建立和 X2 GW之间的 X2接口。
步骤 403 : HeNB GW通过基站配置传输消息将该请求对端传输地址 的消息传递给 MME， 执行步骤 405。
步骤 404 : HeNB给 MME发送基站配置传输消息用于请求对端传输 地址的消息。
该请求消息中包含目标 eNB信息， 以及 HeNB上设定的与目标 eNB 建立 X2接口的类型信息（表示源基站和目标基站之间釆用直接 X2连接 或者间接 X2连接， 该类型信息可以是 lbit的指示信息， 比如 0表示直 接 X2连接， 1表示间接 X2连接； 可选携带源 HeNB用于建立 X2接口 的 IP地址信息（包含一个或多个传输层地址信息 )， 若源 HeNB 自身配 置有所连接的 X2 GW的用于建立 X2接口的 IP地址信息， 则还可以在 请求消息中包含其所连接的 X2 GW的用于建立 X2接口的 IP地址信息 (包含一个或多个传输层地址信息） ， 其中携带的 X2 GW的用于建立 X2接口的 IP地址信息可以用于 eNB建立和 X2 GW之间的 X2接口。
步骤 405: MME根据消息中携带目标 eNB信息， 将该消息转发给 标 e肌
步骤 406: eNB接收到 MME配置传输消息后， 构造基站配置消息 将自身的用于建立 X2接口的传输层地址信息发送给 MME。
所述响应消息中携带目标 eNB用于建立 X2接口的 IP地址信息（包 含一个或多个传输层地址信息） ；
可选的， 所述响应消息中包含目标 eNB设定的与源 HeNB建立 X2 接口的类型信息 （表示当前 eNB和 HeNB之间釆用直接 X2连接或者间 接 X2连接， 该类型信息可以是 lbit的指示信息， 比如 0表示直接 X2 连接， 1表示间接 X2连接 )， 若 eNB 自身配置有所连接的 X2 GW的用 于建立 X2接口的 IP地址信息， 则还可以在请求响应消息中包含其所连 接的 X2 GW的用于建立 X2接口的 IP地址信息 （包含一个或多个传输 层地址信息） ， 其中携带的 X2 GW的用于建立 X2接口的 IP地址信息 可以用于 HeNB判断是否可以通过自身连接的 X2 GW实现和 eNB的 X2 接口建立。 步骤 407: MME解析接收到的基站配置传输消息， 若目标 HeNB连 接在 HeNB GW上， 则 MME将基站配置传输消息透传给 HeNB GW, 执 行步骤 408; 否则， 转步骤 409。
步骤 408: HeNB GW将基站配置传输消息转发给 HeNB， 执行步骤 410。
步骤 409: MME通过 MME配置传输消息将该消息传递给 HeNB。 步骤 410: HeNB根据其中携带的 HeNB用于建立 X2接口的传输层 地址信息、 可能存在的 X2 GW的用于建立 X2接口的传输层地址信息、 以及目标 eNB和 HeNB之间的 X2接口类型信息建立所述源 HeNB和目 标 eNB的 X2连接。
优选地， 若基站上配置的其所连接的 X2 GW有多个， 则可以在请 求、 响应消息中包含多个 X2 GW的用于建立 X2接口的 IP地址信息。
优选地， 所述目标基站对请求消息中携带的 X2接口的类型信息判 决结果和源侧不一致，则目标基站可以在所述响应消息中携带指示信息， 比如 X2接口类型接受或者拒绝。
优选地， 所述源基站可以在请求消息中携带要求获取目标基站与源 基站建立 X2接口的类型信息， 比如携带获取 X2接口类型指示信息， 目 标基站根据指示信息可以在所述响应消息中携带目标基站与源基站建立 X2接口的类型信息。 实施例五、
本实施例中假设 HeNB 1为源基站， HeNB2为目标基站， 若 HeNB 1 和 HeNB2连接到相同的 HeNB GW。 如图 5所示， 本实施例建立连接的 方法具体步骤如下：
步骤 501 : HeNBl下 UE检测到 HeNB2下的小区，需要发起与 HeNB2 建立 X2连接。 步骤 502: HeNBl给 HeNB GW发送基站配置传输消息， 用于请求 获取目标 HeNB2用于建立 X2接口的传输层地址信息。
该请求消息中包含目标 HeNB2信息， 以及 HeNB 1上设定的与目标 HeNB2建立 X2接口的类型信息 （表示源基站和目标基站之间釆用直接 X2连接或者间接 X2连接， 该类型信息可以是 lbit的指示信息， 比如 0 表示直接 X2连接， 1表示间接 X2连接 ) ， 可选携带源 HeNBl用于建 立 X2 接口的 IP 地址信息 （包含一个或多个传输层地址信息） ， 若源 HeNBl 自身配置有所连接的 X2 GW的用于建立 X2接口的 IP地址信息， 则还可以在请求消息中包含其所连接的 X2 GW的用于建立 X2接口的 IP 地址信息 （包含一个或多个传输层地址信息） ， 其中携带的 X2 GW的 用于建立 X2接口的 IP地址信息可以用于 HeNB2判断是否可以通过自 身连接的 X2 GW实现和 HeNBl的 X2接口建立；
步骤 503 : HeNB GW 通过 MME 配置传输消息将该消息传递给 HeNB2。
步骤 504: HeNB2接收到 MME配置传输消息后， 构造基站配置消 息将自身的用于建立 X2接口的传输层地址信息发送给 MME。
所述请求响应消息中携带目标 HeNB2用于建立 X2接口的 IP地址 信息（包含一个或多个传输层地址信息）， 可选包含目标 HeNB2设定的 与源 HeNBl建立 X2接口的类型信息（表示当前 HeNB2和 HeNBl之间 釆用直接 X2连接或者间接 X2连接，该类型信息可以是 lbit的指示信息， 比如 0表示直接 X2连接， 1表示间接 X2连接 ) ， 若 HeNB2 自身配置 有所连接的 X2 GW的用于建立 X2接口的 IP地址信息， 则还可以在请 求响应消息中包含其所连接的 X2 GW的用于建立 X2接口的 IP地址信 息 （包含一个或多个传输层地址信息） ， 其中携带的 X2 GW的用于建 立 X2接口的 IP地址信息可以用于 HeNBl判断是否可以通过自身连接 的 X2 GW实现和 HeNB2的 X2接口建立。
步骤 505: HeNB GW解析接收到的基站配置传输消息， 将基站配 置传输消息透传给 HeNBl。
步骤 506: HeNBl根据其中携带的 HeNB2用于建立 X2接口的传输 层地址信息、可能存在的 X2 GW的用于建立 X2接口的传输层地址信息、 以及目标 HeNB2和 HeNB 1之间的 X2接口类型信息建立所述源 HeNB 1 和目标 HeNB2的 X2连接。
优选地， 若基站上配置的其所连接的 X2 GW有多个， 则可以在请 求、 响应消息中包含多个 X2 GW的用于建立 X2接口的 IP地址信息。
优选地， 所述目标基站对请求消息中携带的 X2接口的类型信息判 决结果和源侧不一致，则目标基站可以在所述响应消息中携带指示信息， 比如 X2接口类型接受或者拒绝。
优选地， 所述源基站可以在请求消息中携带要求获取目标基站与源 基站建立 X2接口的类型信息， 比如携带获取 X2接口类型指示信息， 目 标基站根据指示信息可以在所述响应消息中携带目标基站与源基站建立
X2接口的类型信息。 实施例六、
本发明还提供了一种基站， 如图 6所示， 所述基站包括： 发送单元 61、 接收单元 62和处理单元 63 ; 其中，
发送单元 61， 配置为通过 S1接口发送请求对端传输地址的消息； 接收单元 62， 配置为接收请求对端传输地址的响应消息；
处理单元 63， 配置为发送请求对端传输地址的消息至发送单元 61， 以及根据接收单元 62收到的所述响应消息判决 X2接口的类型。
其中， 所述请求对端传输地址的消息包括： 目标基站信息； 和 /或， 所述源基站设定的与目标基站建立 X2接口的类型信息； 其 中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连接； 和 /或， 所述源基站用于建立 X2接口的 IP地址信息；
和 /或， 要求获取目标基站与源基站建立 X2接口的类型指示信息。 所述响应消息包括： 目标基站用于建立 X2接口的 IP地址信息， 和 /或， 目标基站设定的与源基站建立 X2接口的类型信息， 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的 IP地址信 息，
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
所述处理单元 63， 配置为根据所述响应信息中携带的用于建立 X2 接口的传输层地址信息、 和 /或 X2 GW的用于建立 X2接口的传输层地 址信息、 以及目标基站和源基站之间的 X2接口类型信息， 确定 X2接口 的类型。
所述处理单元 63， 配置为根据所述目标基站所连接的 X2 GW的用 于建立 X2接口的传输层地址信息，判断是否通过自身连接的 X2 GW实 现和目标基站的 X2接口建立。
所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信 息的生成方法包括： 所述目标基站根据携带的 X2 GW的用于建立 X2接 口的传输层地址信息判断是否可以通过自身连接的 X2 GW实现和源基 站的 X2接口建立，并生成判断结果即目标基站所连接的 X2 GW的用于 建立 X2接口的传输层地址信息。
上述， 发送单元 61以及接收单元 62均可以有天线以及 CPU、 或天 线以及 DSP等硬件实现； 所述处理单元 63可以由 DSP或 CPU等硬件 实现。 实施例七、 本发明实施例提供的基站还可以作为目标基站， 包括： 接收单元， 配置为通过 S1接口接收请求对端传输地址的消息； 发送单元， 配置为通过 S1接口返回请求对端传输地址的响应消息。 所述响应消息包括： 目标基站用于建立 X2接口的 IP地址信息， 和 /或， 目标基站设定的与源基站建立 X2接口的类型信息， 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的 IP地址信 息，
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
所述基站还包括： 处理单元， 配置为根据接收单元收到的所述请求 对端传输地址的消息中携带的 X2接口的类型信息、 以及本地设定的目 标基站和源基站实现 X2接口的类型信息， 判决当前目标基站和源基站 之间建立直接 X2接口或间接 X2接口， 由目标基站根据判决结果， 发起 面向源基站的 X2接口建立流程。
本实施例提供的基站可以作为目标基站， 其组成结构图可以如图 6 所示。 实施例八、
本发明提供的系统， 如图 7所示， 包括： 源基站 71和目标基站 72; 其中，
源基站 71， 配置为通过 S1接口从网络侧发送请求对端传输地址的 消息；以及从网络侧接收目标基站发来的请求对端传输地址的响应消息； 根据所述响应消息判决 X2接口的类型；
目标基站 72， 配置为通过 S1接口从网络侧接收源基站发来的请求 对端传输地址的消息，以及通过 S1接口从网络侧向源基站返回请求对端 传输地址的响应消息。 比如， 本发明实施例提供的系统可以如图 8所示为独立 X2 网关部 署情况下的家庭基站网络架构。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的 保护范围。

Claims

权利要求书
1、 一种建立连接的方法， 该方法包括：
源基站通过 S1接口发送请求对端传输地址的消息；
所述源基站接收请求对端传输地址的响应消息；
所述源基站根据所述响应消息发起面向目标基站的 X2接口建立流 程。
2、 根据权利要求 1所述的方法， 其中， 所述请求对端传输地址的消 息包括： 目标基站信息；
和 /或， 所述源基站设定的与目标基站建立 X2接口的类型信息； 其 中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连接； 和 /或， 所述源基站用于建立 X2接口的传输层地址信息；
和 /或， 要求获取目标基站与源基站建立 X2接口的类型指示信息。
3、 根据权利要求 1所述的方法， 其中， 所述响应消息包括： 目标基 站用于建立 X2接口的传输层地址信息；
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息；
和 /或， 目标基站是否接受源基站建议的 X2接口类型指示信息； 其中， 所述 X2接口的类型包括： 直接 X2连接或者间接 X2连接。
4、 根据权利要求 1所述的方法， 其中， 所述源基站根据所述响应消 息发起面向目标基站的 X2接口建立流程， 包括： 所述源基站根据所述 响应信息中携带的用于建立 X2接口的传输层地址信息、和 /或 X2 GW的 用于建立 X2接口的传输层地址信息、 以及目标基站和源基站之间的 X2 接口类型信息， 确定 X2接口的类型， 并由源基站发起面向目标基站的 X2接口建立流程。
5、 根据权利要求 3所述的方法， 其中， 所述方法还包括： 所述源基 站根据所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址 信息，判断是否通过自身连接的 X2 GW实现和目标基站的 X2接口建立。
6、根据权利要求 3所述的方法，其中，所述目标基站所连接的 X2 GW 的用于建立 X2接口的传输层地址信息的生成方法包括：
所述目标基站根据携带的 X2 GW的用于建立 X2接口的传输层地址 信息判断是否可以通过自身连接的 X2 GW实现和源基站的 X2接口建 立，并生成判断结果即目标基站所连接的 X2 GW的用于建立 X2接口的 传输层地址信息。
7、 一种建立连接的方法， 所述方法包括：
目标基站通过 S1接口接收请求对端传输地址的消息；
所述目标基站通过 S 1接口返回请求对端传输地址的响应消息。
8、 根据权利要求 7所述的方法， 其中， 所述响应消息包括： 目标基 站用于建立 X2接口的传输层地址信息；
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息； 其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接
X2连接。
9、 根据权利要求 7或 8所述的方法， 其中， 所述方法还包括： 所述目标基站根据所述请求对端传输地址的消息中携带的 X2接口 的类型信息、 以及本地设定的目标基站和源基站实现 X2接口的类型信 息， 判决当前目标基站和源基站之间建立直接 X2接口或间接 X2接口， 由目标基站根据判决结果， 发起面向源基站的 X2接口建立流程。
10、 一种基站， 所述基站包括发送单元、 接收单元和处理单元； 其 中， 发送单元， 配置为通过 S1接口发送请求对端传输地址的消息； 接收单元， 配置为接收请求对端传输地址的响应消息；
处理单元， 配置为根据所述响应消息发起面向目标基站的 X2接口 建立流程。
11、 根据权利要求 10所述的基站， 其中， 所述请求对端传输地址的 消息包括： 目标基站信息； 和 /或， 源基站设定的与目标基站建立 X2接 口的类型信息； 其中， 所述 X2接口的类型信息包括： 直接 X2连接或者 间接 X2连接； 和 /或， 所述源基站用于建立 X2接口的传输层地址信息； 和 /或， 要求获取目标基站与源基站建立 X2接口的类型指示信息作为请 求对端传输地址的消息。
12、 根据权利要求 10所述的基站， 其中，
所述响应消息包括： 目标基站用于建立 X2接口的传输层地址信息； 和 /或， 目标基站设定的与源基站建立 X2接口的类型信息； 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息；
和 /或， 目标基站是否接受源基站建议的 X2接口类型指示信息； 其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
13、 根据权利要求 10所述的基站， 其中，
所述处理单元， 配置为根据所述响应信息中携带的用于建立 X2接 口的传输层地址信息、 和 /或 X2 GW的用于建立 X2接口的传输层地址 信息、 以及目标基站和源基站之间的 X2接口类型信息， 确定 X2接口的 类型， 发起面向目标基站的 X2接口建立流程。
14、 根据权利要求 12所述的基站， 其中， 所述处理单元， 配置为根 据所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信 息， 判断是否通过自身连接的 X2 GW实现和目标基站的 X2接口建立。
15、 根据权利要求 12 所述的基站， 其中， 所述目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信息的生成包括： 所述目标基 站根据携带的 X2 GW的用于建立 X2接口的传输层地址信息判断是否可 以通过自身连接的 X2 GW实现和源基站的 X2接口建立，并生成判断结 果即目标基站所连接的 X2 GW的用于建立 X2接口的传输层地址信息。
16、 一种基站， 所述基站包括： 接收单元和发送单元； 其中， 接收单元， 配置为通过 S1接口接收请求对端传输地址的消息； 发送单元， 配置为通过 S1接口返回请求对端传输地址的响应消息。
17、 根据权利要求 16所述的基站， 其中， 所述响应消息包括： 目标 基站用于建立 X2接口的传输层地址信息，
和 /或， 目标基站设定的与源基站建立 X2接口的类型信息， 和 /或， 目标基站所连接的 X2 GW的用于建立 X2接口的传输层地 址信息，
其中， 所述 X2接口的类型信息包括： 直接 X2连接或者间接 X2连 接。
18、 根据权利要求 16或 17所述的基站， 其中， 所述基站还包括： 处理单元， 配置为根据接收单元收到的所述请求对端传输地址的消息中 携带的 X2接口的类型信息、 以及本地设定的目标基站和源基站实现 X2 接口的类型信息， 判决当前目标基站和源基站之间建立直接 X2接口或 间接 X2接口， 由目标基站根据判决结果， 发起面向源基站的 X2接口建 立流程。
19、 一种建立连接的系统， 所述系统包括： 源基站和目标基站； 其 中，
源基站， 配置为通过 S1 接口从网络侧发送请求对端传输地址的消 息； 以及从网络侧接收目标基站发来的请求对端传输地址的响应消息； 根据所述响应消息发起面向目标基站的 X2接口建立流程；
目标基站，配置为通过 S1接口从网络侧接收源基站发来的请求对端 传输地址的消息，以及通过 S1接口从网络侧向源基站返回请求对端传输 地址的响应消息。
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