WO2014205818A1 - Procédé, appareil et système d'établissement de liaison - Google Patents

Procédé, appareil et système d'établissement de liaison Download PDF

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Publication number
WO2014205818A1
WO2014205818A1 PCT/CN2013/078462 CN2013078462W WO2014205818A1 WO 2014205818 A1 WO2014205818 A1 WO 2014205818A1 CN 2013078462 W CN2013078462 W CN 2013078462W WO 2014205818 A1 WO2014205818 A1 WO 2014205818A1
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WO
WIPO (PCT)
Prior art keywords
base station
port number
source base
target base
address
Prior art date
Application number
PCT/CN2013/078462
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English (en)
Chinese (zh)
Inventor
肖永胜
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380001818.9A priority Critical patent/CN103718580A/zh
Priority to PCT/CN2013/078462 priority patent/WO2014205818A1/fr
Publication of WO2014205818A1 publication Critical patent/WO2014205818A1/fr

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Classifications

    • 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 communication technologies, and in particular, to a link establishment method, apparatus, and system. Background technique
  • the Evolved Node B can communicate with each other by establishing an X2 link between the eNB and the Mobility Management Entity (MME).
  • MME Mobility Management Entity
  • the SI2 link communication between the eNB and the eNB and the SI link communication between the eNB and the MME are all implemented based on the Stream Control Transmission Protocol (SCTP).
  • SCTP Stream Control Transmission Protocol
  • the X2 link can support the mobility management function of the user equipment (UE). For example, if the UE needs to switch from the source base station that has established the X2 link to the target base station, the source eNB determines whether it belongs to the eNB to which the target base station cell belongs. An X2 link is established, and the path initiated by the handover is automatically selected. When the X2 link is established, a handover request is initiated through the X2 interface, and data is forwarded through the X2 interface.
  • UE user equipment
  • the embodiments of the present invention provide a method, a device, and a system for establishing a link, so as to solve the problem that the establishment of an X2 link is abnormal when the source base station and the target base station are abnormal, thereby reducing the success rate of the X2 link establishment.
  • a first aspect of the present invention provides a link establishment method, including:
  • the source base station sends a first message to the target base station by using the mobility management network element MME, where the first message includes a network association IP address of the source base station and a port number selected by the source base station;
  • the source base station receives a second message sent by the target base station by using an MME, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • the source base station establishes an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the method before the source base station sends the first message to the target base station by using the MME, the method further includes:
  • the source base station determines whether the global flow switch is open; if open, the source base station includes the selected port number in the first message.
  • the method further includes:
  • the source base station selects a port number from a preset port number range as a port number of the source base station.
  • a second aspect of the present invention provides a link establishment method, including:
  • the target base station Receiving, by the target base station, a first message sent by the source base station by using the mobility management network element MME, where the first message includes a network association IP address of the source base station and a port number selected by the source base station;
  • the target base station sends a second message to the source base station by using the MME, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • the target base station establishes an X2 link with the source base station according to the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the target base station before the sending, by the MME, the second message by the MME to the target base station, the target base station further includes:
  • the target base station selects a port number from a preset port number range as a port number of the target base station.
  • a third aspect of the present invention provides a link establishment method, including:
  • the mobility management network element MME sends the received first message sent by the source base station to the target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station;
  • the MME Sending, by the MME, the received second message sent by the target base station to the source base station, where the second message includes an IP address of the target base station and a port number selected by the target base station, so that the source The base station and the target base station establish an X2 link according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • a source base station including: a sending unit, configured to send a first message to the target base station by using the mobility management network element MME, where the first message includes a network association IP address of the source base station and a port number selected by the source base station; and a receiving unit, configured to: Receiving a second message sent by the target base station by using an MME, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • the processing unit is configured to establish an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the source base station further includes: a determining unit, configured to determine whether the global flow switch is turned on;
  • the processing unit is further configured to: if the determining unit determines that the global flow switch is open, include the selected port number in the first message.
  • the source base station further includes:
  • a selecting unit configured to select a port number from the preset port number range as the port number of the source base station.
  • a target base station including:
  • a receiving unit configured to receive a first message sent by the source base station by using the mobility management network element MME, where the first message includes a network association IP address of the source base station and a port number selected by the source base station; Sending, by the MME, a second message to the source base station, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • the processing unit is configured to establish an X2 link with the source base station according to the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the target base station further includes: a selecting unit, configured to select a port number from the preset port number range as the port number of the target base station.
  • an MME including:
  • a receiving unit configured to receive a first message sent by the source base station, and receive a second message sent by the target base station, where the first message includes a network association IP address of the source base station and the source base station selection Port number, the second message includes an IP address of the target base station and a port number selected by the target base station;
  • a sending unit configured to send the first message sent by the source base station to the target base station, and And sending the received second message sent by the target base station to the source base station, so that the source base station and the target base station according to the IP address of the source base station, the port number of the source base station, and the target base station IP The address and the port number of the target base station establish an X2 link.
  • a seventh aspect of the present invention provides a source base station, including:
  • a transmitter configured to send, by using a mobility management network element MME, a first message to a target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station; and a receiver, configured to: Receiving a second message sent by the target base station by using an MME, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • MME mobility management network element
  • the processor is configured to establish an X2 link with the target base station according to an IP address of the source base station, a port number of the source base station, an IP address of the target base station, and a port number of the target base station.
  • the processor of the source base station is specifically implemented as:
  • the processor is further configured to determine whether the global flow switch is open, and if it is open, the selected port number is included in the first message.
  • the processor of the source base station is specifically implemented as:
  • the processor is further configured to select a port number from a preset port number range as a port number of the source base station.
  • a target base station including:
  • a receiver configured to receive a first message sent by the source base station by using the mobility management network element MME, where the first message includes an IP address of the source base station and a port number selected by the selecting unit, and a transmitter, configured to pass Sending, by the MME, a second message to the source base station, where the second message includes an IP address of the target base station and a port number selected by the target base station;
  • the processor configured to establish an X2 link with the source base station, the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the processor of the target base station is implemented as:
  • the processor is further configured to select a port number from a preset port number range as a port number of the target base station.
  • an MME including: a receiver, configured to receive a first message sent by the source base station, and receive a second message sent by the target base station, where the first message includes a network association IP address of the source base station and a port selected by the source base station The second message includes an IP address of the target base station and a port number selected by the target base station;
  • a transmitter configured to send the first message sent by the source base station to the target base station, and send the received second message sent by the target base station to the source base station, so that the source base station and the target base station And establishing an X2 link according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • a system comprising:
  • a source base station configured to send, by using a mobility management network element MME, a first message to a target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station; and receiving the target base station a second message sent by the MME, where the second message includes an IP address of the target base station and a port number selected by the target base station; according to the IP address of the source base station, the port number of the source base station, and the Establishing an X2 link with the target base station by the target base station IP address and the port number of the target base station;
  • the target base station is configured to receive a first message sent by the source base station by using the mobility management network element MME; send, by the MME, a second message to the source base station; according to the target base station IP address, the target base station The port number, the IP address of the source base station, and the port number of the source base station establish an X2 link with the source base station;
  • the MME is configured to send the received first message sent by the source base station to the target base station, and send the received second message sent by the target base station to the source base station.
  • the source base station sends a first message to the target base station by using the MME, where the first message includes the port number selected by the source base station, and receives the second message sent by the target base station by using the MME, where the second message includes the port number selected by the target base station.
  • the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, and the successfully established X2 link between the source base station and the target base station can be improved.
  • the probability that the present invention does not need to specifically configure the port number for the source base station or the target base station reduces the workload of maintaining the base station while improving the link establishment success rate, and improves the X2 handover success rate.
  • FIG. 1 is a schematic flowchart of a method for establishing a link according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for establishing a link according to another embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for establishing a link according to another embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for establishing a link according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a global flow switch for link establishment according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a source base station used in a link establishment method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a source base station used in a link establishment method according to another embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a source base station used in a link establishment method according to another embodiment of the present invention
  • FIG. 10 is a schematic structural diagram of a target base station for a link establishment method according to another embodiment of the present invention
  • FIG. 11 is a schematic structural diagram of an MME for a link establishment method according to an embodiment of the present invention
  • 12 is a schematic structural diagram of a source base station used in a link establishment method according to an embodiment of the present invention
  • the method for establishing a link provided by the embodiment of the present invention, as shown in FIG. 1 , includes:
  • the source base station sends a first message to the target base station by using the MME.
  • the first message includes an IP (Internet Protocol) address of the source base station and a port number selected by the source base station.
  • IP Internet Protocol
  • the source base station and the target base station automatically establish an X2 link
  • the local port number configuration of the X2 link of all base stations is required to be identical. Because the source base station defaults the peer port number to the same as the local port number. Similarly, the target base station will default the peer port number to the same as the local port number of the target base station. Therefore, the port is now The inconsistent number will cause the X2 link establishment failure between the base stations.
  • the SCTP port number used by the base station of the X2 link recommended by the 3GPP is 36422.
  • the source base station and the target base station do not use the 36422 recommended by the 3GPP as the port number, but select one from the port number range, for example, the source base station selects the number 3642 as the local port number, and the target base station.
  • the 3655 is selected as the local port number of the target base station, but the source base station will use the number selected by the local end as the local port number, and will also copy 3642 as the peer port number of the link, that is, the source base station default target base station.
  • the port number is 3642.
  • the target base station also copies the number 3655 selected by the local end to the peer port number of the target base station, that is, the port of the target base station default source base station.
  • the number is 3655.
  • the port number thus established is the peer port number of the source base station X2 link.
  • the X2 link peer port number of the target base station is not the local port number of the source base station, which causes the X2 link establishment failure.
  • the source base station and the target base station automatically establish an X2 link, if the peer port number of the source base station is the local port number of the target base station, the peer port number of the target base station is the local port number of the source base station, The X2 link can be successfully established between the base stations.
  • the source base station may send the first message to the target base station by using the MME, where the first message includes the IP address of the source base station and the port number selected by the source base station, so that the opposite end, that is, the target base station learns the source base station IP address and learns the source base station. Port number.
  • the X2 link consists of the local IP address, the local port number, the peer IP address, and the peer port number. Therefore, in the case of mutual knowledge of the IP address and the peer port number, the probability of the source base station establishing the X2 link with the target base station is greatly increased.
  • the first message may be a message specially configured by the source base station to send the port number, or may add a field in the original configuration transmission message of the 3GPP to indicate or carry the port number.
  • a field is added in the X2 Transport Network Layer (TLL) Configuration Information configuration message of 9.2.3.29 in 3GPP protocol 36.413 or a field is carried to carry the above port number 3642.
  • TLL Transport Network Layer
  • the source base station receives the second message sent by the target base station by using the MME.
  • the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the target base station after receiving the first message sent by the MME, the target base station includes the port number 3655 and the target base selected by the target base station.
  • the second message of the station IP address is sent by the MME to the source base station.
  • the source base station establishes an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the IP address of the target base station, and the port number of the target base station.
  • the source base station establishes an X2 chain with the target base station according to the port number selected by the local end, such as 3642, and the peer end, that is, the port number of the target base station determined by the received second message, such as 3655 and the respective IP address.
  • the local port number and the peer port number determined by the source base station are 3642 and 3655.
  • the target base station can also determine the local port number of the source base station, and thus the local port number and the peer port determined. No. 3655, 3642 ⁇ such a source base station and the target base station port number is -3642 3655 -
  • the IP address of the peer and the peer IP address and the peer port number determine the X2 link attribute of the device, that is, different IPs and different port numbers can form different X2 links, and the local IP address of the source base station
  • the local port number is the same as the peer IP address of the target base station X2 link, and the peer port number is the same; the local IP address of the X2 link of the target base station, the local port number and the peer IP address of the source base station, and the peer end
  • the port numbers are the same, so as to ensure the success of the X2 link establishment between the base stations.
  • the source base station sends a first message to the target base station by using the MME, where the first message includes the port number selected by the source base station, and receives the second message sent by the target base station by using the MME, where the second message includes
  • the port number selected by the target base station establishes an X2 link with the target base station according to the port number of the source base station and the port number of the target base station. In this way, the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, which can improve the probability of successfully establishing the X2 link between the source base station and the target base station.
  • the method for establishing a link includes:
  • the target base station receives the first message sent by the source base station by using the mobility management network element MME.
  • the first message includes an IP address of the source base station and a port number selected by the source base station.
  • the target base station sends a second message to the source base station by using the MME.
  • the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the second message may be a message specially configured by the target base station to send the port number, or may be added or indicated in the original configuration transmission message of the 3GPP to carry the port number.
  • a field is added to the TNL Configuration Info message in 3GPP protocol 36413 or a field is required to carry the above port number 3655.
  • the target base station establishes an X2 link with the source base station according to the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the target base station establishes X2 with the source base station according to the port number selected by the local end, such as 3655, and the port number of the source base station determined by the received first message, such as 3642, and the respective IP address. Link, at this time, the local port number and the peer port number determined by the source base station are 3655.
  • the source base station may also determine the local port number of the target base station, so the determined local port number and the peer port number are 3642, 3655.
  • the port number of the target base station and the source base station is
  • the local IP address of the source base station can be determined, the local port number is the same as the peer IP address of the target base station X2 link, and the peer port number is the same; the local IP address of the X2 link of the target base station, the local end The port number is the same as the peer IP address of the source base station and the peer port number. This ensures that the X2 link is successfully established between the base stations.
  • the target base station receives the first message sent by the source base station by using the mobility management network element MME, where the first message includes the port number selected by the source base station, and sends the second message to the source base station by using the MME.
  • the second message includes the port number selected by the target base station, and finally establishes an X2 link with the target base station according to the port number of the target base station and the port number of the source base station.
  • the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, which can improve the probability of successfully establishing the X2 link between the source base station and the target base station. And the invention does not need to specifically configure the port number for the source base station or the target base station, and improve the link construction.
  • the link establishing method provided by the embodiment of the present invention, as shown in FIG. 3, includes:
  • the MME sends the received first message sent by the source base station to the target base station.
  • the first message includes an IP address of the source base station and a port number selected by the source base station.
  • the MME establishes an SI link with the source base station and the target base station, and the source base station and the target base station mutually send messages through the MME.
  • the first message sent by the source base station may include the selected port number 3642, and the first message may be a message of a dedicated sending port number configured by the source base station, or may be added to the original configuration transmission message or Indicates a field to include the port number, and will not be described here.
  • the source base station may send an eNB configuraton Transfer base station configuration transmission message to the MME, where the message carries or indicates the IP address information of the source base station and the selection.
  • the first message is a MME configuration Transfer mobility management network element configuration transmission message, which still includes or indicates the IP address information of the source base station and the selected port number, and is sent by the MME to the target base station.
  • the MME sends the received second message sent by the target base station to the source base station.
  • the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the MME will receive the first message, which may be a configuration transmission message sent by the source base station, and will not be described again.
  • the source base station and the target base station can know the port number of the opposite end, and then establish an X2 link according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station, so as to improve the X2 chain.
  • the success rate of the road is automatically established.
  • the link establishment method provided by the embodiment of the present invention is described by using the first message as a configuration transmission message as an example, but is not limited thereto. As shown in FIG. 4, the method includes:
  • the source base station determines whether the global process switch is turned on.
  • the global flow switch can be as shown in FIG. 5, and the source base station can determine whether the global flow switch is enabled according to the carrying port number information included in the GLOBALPROCSWITCH field according to the global flow switch, as shown in FIG. If the drop-down menu included in the Chain Carry Port Number field is selected, the global flow switch is determined to be open, and vice versa. In this way, the source base station maintenance interface can control whether the "X2 self-built chain carrying port number" is allowed through the global flow switch.
  • step S402 is performed.
  • the source base station selects a port number from a preset port number range as a port of the source base station. number.
  • the preset port number range may be 1024-65535.
  • the source base station may select a port number 3642 from the preset port number range as the port number of the source base station. It should be noted that the port number selected by the source base station and the port number selected by the target base station may be different, and since the source base station and the target base station can select the port number without waiting for system planning and configuration, the maintenance and planning system is reduced. The amount of work.
  • the source base station includes the selected port number in the configuration transmission message.
  • the configuration transmission message may be a message such as TNL Configuration Information in the 3GPP protocol.
  • the source base station sends a configuration transmission message to the target base station by using the MME, where the configuration transmission message includes an IP address of the source base station and a port number selected by the source base station.
  • S405 The MME sends the configuration transmission message sent by the source base station to the target base station.
  • the configuration transmission message includes an IP address of the source base station and a port number selected by the source base station.
  • the target base station receives the configuration transmission message sent by the source base station by using the MME, where the configuration transmission message includes an IP address of the source base station and a port number selected by the source base station.
  • the target base station and the source base station send a configuration transmission message by using an S1 link established with the MME, where the configuration transmission message sent by the source base station to the target base station includes a port number selected by the source base station, such as 3642, and the target base station sends the source to the source.
  • the configuration transmission message of the base station includes the port number selected by the source base station, such as 3655.
  • the target base station selects a port number from the preset port number range as the port number of the target base station.
  • the target base station receives the first message carrying the port number sent by the source base station through the MME, and determines that the IP address and the selected port number need to be sent to the source base station through the MME.
  • the target base station includes the selected port number in the configuration transmission message.
  • the target base station sends a configuration transmission message to the source base station by using the MME, where the configuration transmission message includes an IP address of the target base station and a port number selected by the target base station.
  • the MME sends the configuration transmission message sent by the target base station to the source base station.
  • the configuration transmission message includes an IP address of the target base station and a port number selected by the target base station.
  • the source base station receives the configuration transmission message sent by the target base station by using the MME, and configures the transmission.
  • the message includes the IP address of the target base station and the port number selected by the target base station.
  • step S411 step S412 and step S409 are performed, and step S413 can be performed.
  • S413 and S410-S411 have no sequential relationship.
  • the source base station establishes an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the IP address of the target base station, and the port number of the target base station.
  • the target base station establishes an X2 link with the source base station according to the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the source base station randomly selects a number as the port number in the range of the port number valid value, that is, the preset port number range, and the source base station is in the eNB configuraton Transfer message.
  • the port number carrying the selection and the IP address of the source base station are forwarded to the MME, and the MME forwards the selected port number and the IP address of the source base station to the target base station through the MME configuration Transfer message.
  • the principle of the target base station is the same as that of the above, and will not be described here.
  • the source base station and the target base station can establish an X2 link through the accurate local port number and the peer port number, as well as the local IP address and the peer IP address, thereby greatly increasing the probability of successful X2 link establishment.
  • the source base station 10 provided by the embodiment of the present invention, as shown in FIG. 6, includes:
  • the sending unit 101 is configured to send, by using the MME, a first message to the target base station, where the first message includes an IP address of the source base station and a port number selected by the source base station.
  • the receiving unit 102 is configured to receive a second message sent by the target base station by using the MME, where the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the processing unit 103 is configured to establish an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the source base station as shown in FIG. 7, further includes:
  • the determining unit 104 is configured to determine whether the global flow switch is open.
  • the processing unit 103 is further configured to: if the determining unit 104 determines that the global flow switch is open, include the selected port number in the first message.
  • the determining unit 104 is specifically configured to determine whether the carrying port number information included in the global flow switch GLOBALPROCSWITCH field is indicated as permission, and if so, the processing unit 103 determines that the global flow switch is open. Further, as shown in FIG. 8, the source base station 10 further includes:
  • the selecting unit 105 is configured to select a port number from the preset port number range as the port number of the source base station.
  • the sending unit 101 is further configured to send, by using the MME, a configuration transmission message to the target base station, where the configuration transmission message includes an IP address of the source base station and a port number selected by the selecting unit 105.
  • the source base station sends a first message to the target base station by using the MME, where the first message includes the port number selected by the source base station, and receives the second message sent by the target base station by using the MME, where the second message includes the port selected by the target base station.
  • the X2 link is established with the target base station according to the port number of the source base station and the port number of the target base station. In this way, the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, and the successfully established X2 link between the source base station and the target base station can be improved.
  • the probability that the present invention does not need to specifically configure the port number for the source base station or the target base station reduces the workload of maintaining the base station while improving the link establishment success rate, and improves the X2 handover success rate.
  • the target base station 20 provided by the embodiment of the present invention, as shown in FIG. 9, includes:
  • the receiving unit 201 is configured to receive a first message sent by the source base station by using the MME, where the first message includes a network association IP address of the source base station and a port number selected by the source base station.
  • the sending unit 202 is configured to send, by using the MME, a second message to the source base station, where the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the processing unit 203 is configured to establish an X2 link with the source base station according to the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the target base station 20 further includes:
  • the selecting unit 204 is configured to select a port number from the preset port number range as the port number of the target base station.
  • the sending unit 202 is further configured to send, by using the MME, a configuration transmission message to the source base station, where the configuration transmission message includes an IP address of the target base station and a port number selected by the selecting unit 204.
  • the target base station receives the first message sent by the source base station by using the mobility management network element MME, where the first message includes the port number selected by the source base station, and sends a second message to the source base station by using the MME, where the second message includes The port number selected by the target base station, and finally establishing an X2 link with the target base station according to the port number of the target base station and the port number of the source base station.
  • MME mobility management network element
  • the link can improve the probability of successfully establishing an X2 link between the source base station and the target base station, and the present invention does not need to specifically configure the port number for the source base station or the target base station, thereby reducing the maintenance while improving the link establishment success rate.
  • the receiving unit 301 is configured to receive a first message sent by the source base station, and receive a second message sent by the target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station, and the second message The IP address of the target base station and the port number selected by the target base station are included.
  • the sending unit 302 is configured to send the first message sent by the received source base station to the target base station, and send the second message sent by the received target base station to the source base station.
  • the source base station and the target base station establish an X2 link according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the sending unit 302 is further configured to send the configuration transmission message sent by the source base station received by the receiving unit 301 to the target base station, where the configuration transmission message includes an IP address of the source base station and a port number selected by the source base station.
  • the sending unit 302 is further configured to send the configuration transmission message sent by the target base station received by the receiving unit 301 to the source base station, where the configuration transmission message includes an IP address of the target base station and a port number selected by the target base station.
  • the source base station 40 provided by the embodiment of the present invention, as shown in FIG. 12, includes:
  • the transmitter 401 is configured to send, by using the MME, a first message to the target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station.
  • the receiver 402 is configured to receive a second message sent by the target base station by using the MME, where the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the processor 403 is configured to establish an X2 link with the target base station according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the processor 403 is further configured to determine whether the global process switch is turned on, and if The selected port number is included in the first message. For example, the processor 403 determines whether the carrying port number information included in the global flow switch GLOBALPROCSWITCH field indicates that it is allowed, and if so, determines that the global flow switch is open.
  • the processor 403 is further configured to select a port number from the preset port number range as the port number of the source base station.
  • the transmitter 401 is further configured to send, by using the MME, a configuration transmission message to the target base station, where the configuration transmission message includes an IP address of the source base station and a port number selected by the processor.
  • the source base station sends a first message to the target base station by using the MME, where the first message includes the port number selected by the source base station, and receives the second message sent by the target base station by using the MME, where the second message includes the port selected by the target base station.
  • the X2 link is established with the target base station according to the port number of the source base station and the port number of the target base station. In this way, the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, and the successfully established X2 link between the source base station and the target base station can be improved.
  • the probability, and the present invention does not need to specifically configure the port number for the source base station or the target base station, which reduces the workload of maintaining the base station while improving the link establishment success rate.
  • the target base station 50 provided by the embodiment of the present invention, as shown in FIG. 13, includes:
  • the receiver 501 is configured to receive a first message sent by the source base station by using the MME, where the first message includes an IP address of the source base station and a port number selected by the selecting unit.
  • the transmitter 502 is configured to send, by using the MME, a second message to the source base station, where the second message includes an IP address of the target base station and a port number selected by the target base station.
  • the processor 503 is configured to establish an X2 link with the source base station by using the target base station IP address, the port number of the target base station, the IP address of the source base station, and the port number of the source base station.
  • the processor 503 is further configured to select a port number from the preset port number range as the port number of the target base station.
  • the transmitter 502 is further configured to send, by using the MME, a configuration transmission message to the source base station, where the configuration transmission message includes an IP address of the target base station and a port number selected by the processor.
  • the target base station receives the first message sent by the source base station by using the mobility management network element MME, where the first message includes the port number selected by the source base station, and sends a second message to the source base station by using the MME, where the second message includes The port number selected by the target base station, and finally according to the target base station
  • MME mobility management network element
  • the port number and the port number of the source base station establish an X2 link with the target base station. In this way, the source base station and the target base station can know the port number of the opposite end. If the correct port number of the other party is known, the X2 link is established, and the X2 link successfully established between the source base station and the target base station can be improved.
  • the probability, and the present invention does not need to specifically configure the port number for the source base station or the target base station, which reduces the workload of maintaining the base station while improving the link establishment success rate.
  • the MME 60 provided by the embodiment of the present invention, as shown in FIG. 14, includes:
  • the receiver 601 is configured to receive a first message sent by the source base station, and receive a second message sent by the target base station, where the first message includes a network association IP address of the source base station and a port number selected by the source base station, where the second message includes the target The IP address of the base station and the port number selected by the target base station.
  • the transmitter 602 is configured to send the first message sent by the received source base station to the target base station, and send the second message sent by the received target base station to the source base station.
  • the source base station and the target base station are configured according to the IP address of the source base station, the port number of the source base station, the target base station IP address, and the port number of the target base station.
  • the transmitter 502 sends the configuration transmission message sent by the source base station received by the receiver 501 to the target base station, where the configuration transmission message includes the IP address of the source base station and the port number selected by the source base station; the transmitter 502 receives the receiver 501.
  • the configuration transmission message sent by the target base station is sent to the source base station, where the configuration transmission message includes the IP address of the target base station and the port number selected by the target base station.
  • the source base station and the target base station can know the port number of the opposite end through the MME, and then establish an X2 link according to the IP address of the source base station, the port number of the source base station, the IP address of the target base station, and the port number of the target base station, so as to improve The success rate of the X2 link establishment.
  • the system 1, provided in the embodiment of the present invention, as shown in FIG. 15, includes:
  • the source base station 10, the target base station 20, and the MME 30 may adopt the structure shown in any of the source base stations 10 of FIG. 6 to FIG. 8.
  • the target base station may adopt the structure shown by the target base station 20 of FIG. 9 or FIG. 10, and the MME may adopt the structure shown by the MME 30 of FIG. .
  • the system includes:
  • Source base station, target base station, and MME In the system, the source base station can adopt the structure shown by the source base station 40 of FIG. 12, the target base station can adopt the structure shown by the target base station 50 of FIG. 13, and the MME can adopt the structure shown by the MME 60 of FIG.
  • the source base station 10, the target base station 20, and the MME 30 in the system 1, or the source base station 40, the target base station 50, and the MME 60 can all operate using the method provided in the foregoing embodiment, and the source base station 10, the target base station 20, and the MME 30
  • the structure of the source base station 40, the target base station 50, and the MME 60 is the same as that of the foregoing embodiment, and details are not described herein again.
  • the source base station and the target base station can establish an X2 link through the accurate local port number and the peer port number, as well as the local IP address and the peer IP address, thereby greatly increasing the probability of successful X2 link establishment.
  • the foregoing embodiment may be a plurality of communication networks such as an LTE network, and the foregoing embodiments of the present invention can be applied to various communication networks such as an LTE network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention, selon certains modes de réalisation, concerne un procédé, un appareil et un système d'établissement de liaison qui se rapporte au domaine des communications et peut augmenter la probabilité de succès d'établissement de lien X2. Un procédé d'établissement de liaison consiste en : une station de base source envoie un premier message à une station de base de destination via une entité de gestion de mobilité (MME), le premier message comprenant une adresse IP de la station de base source et un numéro de port sélectionné par la station de base source ; la station de base source reçoit un second message envoyé par la station de base de destination via la MME, le second message comprenant une adresse IP de la station de base de destination et un numéro de port sélectionné par la station de base de destination ; et la station de base source établit une liaison X2 avec la station de base de destination en fonction de l'adresse IP de la station de base source, du numéro de port de la station de base source, de l'adresse IP de la station de base de destination et du numéro de port de la station de base de destination.
PCT/CN2013/078462 2013-06-28 2013-06-28 Procédé, appareil et système d'établissement de liaison WO2014205818A1 (fr)

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CN201380001818.9A CN103718580A (zh) 2013-06-28 2013-06-28 链路建立方法、装置及系统
PCT/CN2013/078462 WO2014205818A1 (fr) 2013-06-28 2013-06-28 Procédé, appareil et système d'établissement de liaison

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CN105472766A (zh) * 2014-08-21 2016-04-06 中兴通讯股份有限公司 Lte家庭基站建立x2链路的方法及装置
CN106612563B (zh) * 2015-10-26 2020-07-21 大唐移动通信设备有限公司 一种网络节点间建立sctp链路的方法及装置
CN107872822B (zh) * 2016-09-23 2020-05-26 大唐移动通信设备有限公司 一种业务的承载方法及承载装置

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CN102098742B (zh) * 2009-12-09 2013-07-10 大唐移动通信设备有限公司 一种x2连接的协商方法、系统和基站
WO2011137703A2 (fr) * 2011-04-11 2011-11-10 华为技术有限公司 Procédé et dispositif d'établissement de lien x2

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CN101741712A (zh) * 2008-11-18 2010-06-16 华为技术有限公司 支持基站数据交换的装置、系统及方法
CN101841936A (zh) * 2009-03-20 2010-09-22 中兴通讯股份有限公司 获取天线端口信息的方法
CN102118877A (zh) * 2011-01-27 2011-07-06 大唐移动通信设备有限公司 一种数据的传输方法和设备

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