CN105813230A - X2 interface message processing method, base station, X2 gateway and system - Google Patents
X2 interface message processing method, base station, X2 gateway and system Download PDFInfo
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- CN105813230A CN105813230A CN201410856538.2A CN201410856538A CN105813230A CN 105813230 A CN105813230 A CN 105813230A CN 201410856538 A CN201410856538 A CN 201410856538A CN 105813230 A CN105813230 A CN 105813230A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
Abstract
The invention discloses an X2 interface message processing method, an X2 gateway, a base station and a system. The method comprises the steps that an X2 removal process message sent by the base station is received; and according to the X2 removal process message, the connection information of the X2 interface of the corresponding base station is removed.
Description
Technical field
The present invention relates to the control technology in moving communicating field, particularly relate to a kind of X2 interface message treatment method, base station, X2 gateway and system.
Background technology
In LTE (LongTermEvolution) system of third generation partnership project (ThirdGenerationPartnershipProjects is called for short 3GPP) normal structure definition, Home eNodeB is referred to as HeNB (homeeNB).The function that HeNB supports is basically identical with eNB, basically identical between process and eNB and the EPC between HeNB and EPC (EvolvedPacketCore).Owing to the arrangement of HeNB is usually not little and large number of through the network planning of mobile operator, coverage.For management more easily and in order to support greater number of HeNB, under E-UTRAN (EvolvedUTRAN) framework, between the S1 of HeNB and EPC connects, introduce a new network element HeNBGW (HomeeNBGateway).Due to the spendable X2 interface limited amount in base station, it is therefore desirable to delete unwanted X2 annexation in time, in order to this base station can be set up new X2 and connect.Based on this demand, X2 interface introduces X2 and removes the flow process X2 connection to remove in both sides base station.But do not resolve the X2 message in the X2 interface information transfer message of its route due to X2 gateway, X2 gateway can not know that having completed X2 between base station connects and remove.Therefore in prior art, X2 gateway cannot conventional maintenance its connect the X2 link information between base station, after X2 gateway detects that it is connected disconnection with the SCTP of certain base station, unnecessary X2 release message will be sent to removing the X2 adjacent base station being connected with this base station and causing X2 signaling to waste.
It addition, after X2 gateway receives X2 interface procedure message, if the X2 interface procedure message received cannot correctly be processed, for instance, it is impossible to correct route, then can reply mistake instruction message to base station.Base station can be passed through X2 gateway and initiate X2 interface process to multiple adjacent base stations simultaneously.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of X2 interface message treatment method, base station, X2 gateway and system, can at least solve the above-mentioned problems in the prior art.
Embodiments providing a kind of X2 interface message treatment method, be applied to X2 gateway, described method includes:
The X2 receiving base station transmission removes procedure message；
The link information that procedure message removes the X2 interface of corresponding base station is removed according to described X2.
In such scheme, described X2 removes procedure message and includes following at least one:
X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described in receive base station send X2 remove procedure message, including: receive X2 interface information transfer message, from described X2 interface information transmission information extract X2 remove procedure message；
Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described remove the link information of X2 interface that procedure message removes the base station of correspondence according to described X2, including:
Receive X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or,
After receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
In such scheme, described in receive the X2 that base station sends and remove procedure message, receive, including: X2 gateway, the X2 that base station directly transmits and remove procedure message.
In such scheme, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
In such scheme, described method also includes: receives X2 and removes response message, then remove the identification information extracting source base station and the target BS carried response message from described X2, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
In such scheme, described method also includes:
Receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and/or source base station；
When cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and/or target BS.
In such scheme, described cannot correctly perform described X2 interface flow process, including:
Described X2 interface message cannot be processed；
Or, it is impossible to it route described X2 interface message.
Embodiments providing a kind of X2 interface message treatment method, be applied to base station, described method includes:
Generate X2 and remove procedure message；Send X2 and remove procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
In such scheme, described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described transmission X2 removes procedure message to X2 gateway, including:
Described X2 removes procedure message be contained in X2 interface information transfer message and send；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described transmission X2 removes procedure message to X2 gateway, including: it is not included in X2 interface information transfer message, but directly transmits X2 and remove procedure message.
In such scheme, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
Embodiments providing a kind of X2 gateway, described X2 gateway includes:
Receiving unit, the X2 sent for receiving base station removes procedure message；
Processing unit, for removing, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
In such scheme, described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described reception unit, specifically for receiving X2 interface information transfer message；
Accordingly, described processing unit, remove procedure message specifically for extracting X2 from described X2 interface information transmission information；
Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described processing unit, specifically for receiving X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or,
After receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
In such scheme, described reception unit, the X2 directly transmitted specifically for receiving base station removes procedure message.
In such scheme, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
In such scheme, described reception unit, it is additionally operable to receive X2 and removes response message；
Accordingly, described processing unit, it is additionally operable to remove the identification information extracting source base station and the target BS carried response message from described X2, chooses and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
In such scheme, described reception unit, it is additionally operable to receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and source base station；
Accordingly, described processing unit, it is additionally operable to judge whether described X2 interface message meets first pre-conditioned, when cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and target BS.
In such scheme, described processing unit, if specifically for described X2 interface message cannot be processed, or, it is impossible to it route described X2 interface message, then cannot correctly perform described X2 interface flow process.
Embodiments providing a kind of base station, described base station includes:
Processing unit, is used for generating X2 and removes procedure message；
Transmitting element, is used for sending X2 and removes procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
In such scheme, described X2 removes procedure message and includes following at least one:
X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described transmitting element, it is contained in X2 interface information transfer message sends specifically for described X2 being removed procedure message；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
In such scheme, described transmitting element, it is contained in X2 interface information transfer message specifically for described X2 not being removed procedure message, but directly transmits X2 and remove procedure message.
In such scheme, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
Embodiments providing a kind of X2 interface message handling system, described system includes: base station and X2 gateway；Wherein,
Described X2 gateway, the X2 sent for receiving base station removes procedure message；The link information that procedure message removes the X2 interface of corresponding base station is removed according to described X2；
Described base station, is used for generating X2 and removes procedure message；Send X2 and remove procedure message to X2 gateway.
In such scheme, described base station includes: macro base station, and/or Home eNodeB.
The X2 interface message treatment method of code modulation mode provided by the present invention, base station, X2 gateway and system, X2 gateway removes, according to the X2 that base station is sent, the X2 that procedure message controls between base station and connects and remove；So, it is ensured that X2 gateway can be known that the X2 between base station connects in time and remove situation so that the X2 link information between its connection base station of X2 gateway energy conventional maintenance, unnecessary X2 message is effectively reduced.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention X2 interface message treatment method schematic flow sheet one；
Fig. 2 is embodiment of the present invention X2 interface message treatment method schematic flow sheet two；
Fig. 3 is embodiment of the present invention X2 interface message treatment method schematic flow sheet three；
Fig. 4 is embodiment of the present invention X2 interface message treatment method schematic flow sheet four；
Fig. 5 is embodiment of the present invention X2 interface message treatment method schematic flow sheet five；
Fig. 6 is embodiment of the present invention X2 gateway composition structural representation；
Fig. 7 is embodiment of the present invention base station composition structural representation；
Fig. 8 is embodiment of the present invention X2 interface message handling system composition structural representation；
Fig. 9 is embodiment of the present invention system composition scene.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
Embodiment one,
The embodiment of the present invention proposes a kind of X2 interface message treatment method, is applied to gateway, as it is shown in figure 1, include:
Step 101: the X2 receiving base station transmission removes the instruction of procedure message；
Step 102: remove the link information that procedure message removes the X2 interface of corresponding base station according to described X2.
Here, described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
Described receive base station send X2 remove procedure message, have two kinds of situations, a kind of X2 of being removes the situation that procedure message directly transmits, another kind be X2 remove procedure message be contained in X2 interface information transfer message send situation, specific as follows:
Situation one: receive X2 interface information transfer message, extracts X2 from described X2 interface information transmission information and removes procedure message；Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
In this case, described remove the link information of X2 interface that procedure message removes the base station of correspondence according to described X2, including:
Receive X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or,
After receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
Situation two, X2 gateway receive the X2 that directly transmits of base station and remove procedure message.
Wherein, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
Preferably, described method can also include: receives X2 and removes response message, then remove the identification information extracting source base station and the target BS carried response message from described X2, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
Further, described method also includes: receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and/or source base station；When cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and/or target BS.
Described cannot correctly perform described X2 interface flow process, including: described X2 interface message cannot be processed；Or, it is impossible to it route described X2 interface message.
The method provided for the present embodiment below by scene illustrates.
As in figure 2 it is shown, wherein, base station (eNB) 1 and base station (eNB) 2 can be Home eNodeB or macro base station, is set up by X2 gateway and complete the X2 method removed under X2 connection between base station.Particularly as follows:
Step 201, base station 1 and base station 2 are set up X2 by X2 gateway and are connected, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway connected, this X2 removes request message and is not encapsulated in X2AP messaging message, but is transmitted directly to X2 gateway.
Wherein, described X2 removes the base station identification information comprising source and target base station in request message, the i.e. eNBID of base station 1 and base station 2.
Step 202, X2 gateway removes the target BS mark in request message according to the X2 that base station 1 is sent, and X2 removes request message and routes to base station 2.
Step 203, when base station 2 according to the X2 received remove request message determine the X2 between its with base station 1 is connected remove time, to X2 gateway reply X2 remove response message.
Wherein, described X2 removes response message and is not encapsulated in X2AP messaging message equally, but is transmitted directly to X2 gateway.Described X2 removes the base station identification information comprising source base station and target BS in response message.
Further, base station 2 can be deleted the X2 with base station 1 and is connected relevant information, and described X2 connects relevant information and may include that resource, application layer configuration data.
Step 204, receives and also can perform corresponding X2 after X2 removes response message and remove operation, deletes by the X2 connection relation information of base station 1 and base station 2.
If the SCTP that follow-up X2 gateway detects between its with base station 1 (or base station 2) is connected disconnection, then will send X2 release message and there is the X2 base station being connected to between base station 1 (or base station 2).Owing to the X2 connection relation information of base station 1 and base station 2 is deleted by X2 gateway, X2 gateway will not send X2 release message to base station 2 (or base station 1).
Step 205, X2 is removed response message according to the X2 the received target BS mark removed in response message and routes to base station 1 by X2 gateway.
Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Fig. 3 is described to be set up by X2 gateway between base station and completes the X2 method removed under X2 connection, including:
Step 301, base station 1 and base station 2 are connected by X2 gateway, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway of its connection, concrete, this X2 removes request message and is encapsulated in X2 interface information transfer message and sends.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 1 and base station 2.Optionally, also including X2 and remove instruction information in this message, it is X2REMOVAL process (or X2REMOVAL request) message that this X2 removes instruction information for indicating what comprise in this X2 interface information transfer message.
Step 302, this message is routed to base station 2 according to the target BS identification information in this message after receiving X2 interface information transfer message by X2 gateway.
Step 303, base station 2 accepts to be connected the X2 between its with base station 1 to remove, then reply X2 to X2 gateway and remove response message.Similar, this X2 removes response message and is encapsulated in transmission in X2AP message transmission (X2APMESSAGETRANSFER) message.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 2 and base station 1.It addition, also comprise X2REMOVAL in this message to indicate information, this X2REMOVAL indicates information to be X2REMOVAL process (or X2REMOVAL response) message for indicating what comprise in this X2 interface information transfer message.Then, base station 2 can be deleted and be connected relevant information to the X2 of base station 1, such as resource, application layer configuration data etc..After X2 gateway receives X2 interface information transfer message, it is resolved to and wherein comprises X2REMOVAL and indicate information, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.Or, X2 gateway is resolved to after comprising X2REMOVAL instruction information in the X2 interface information transfer message received, resolve the X2AP message of encapsulation in this message, if the X2AP message of this encapsulation is X2REMOVAL response message, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.
Step 304, the X2 interface information transfer message encapsulating X2 and removing response message is routed to base station 1 by X2 gateway.Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Further, described base station includes: macro base station, and/or Home eNodeB.
Fig. 4 gives the wrong indicating means setting up under X2 connection by X2 gateway between base station, including:
Step 401, X2 Establishing process to be initiated with base station 2 in base station 1, and the X2 setting up agency owing to requiring over X2 gateway connects, then first base station 1 sends X2 interface information transfer message to X2 gateway.This X2 interface information transfer message comprises the eNBID of source and target base station, and corresponding X2 sets up message.The target BS of this message is base station 2.
Step 402, base station 1 is wanted to initiate X2 to base station 3 and is removed flow process, connects owing to setting up X2 by X2 gateway between base station 1 and base station 3, then this X2 interface information transfer message is sent to X2 gateway by base station 1.Comprising the eNBID of source and target base station and corresponding X2REMOVAL message in this X2 interface information transfer message, wherein target BS is base station 3.
Step 403, the X2 interface information transfer message comprising X2REMOVAL message is routed to base station 3 according to EnbID and the IP address information of the connected base station of its maintenance by X2 gateway.
Step 404, safeguards, owing to preserving in X2 gateway, EnbID and the IP address mapping information having base station 2, and it cannot route its X2 interface information transfer message that target BS is base station 2 received from base station 1.
Step 405, X2 gateway cannot route X2 interface information transfer message, then send mistake instruction message to base station 1.Including at least the target BS identification information (namely eNBID of base station 2) in its X2 interface information transfer message that cannot route in this mistake instruction message.Optionally, this mistake instruction message also can comprise the eNBID information of base station 1.Namely base station 1 can determine that after receiving this Defect Indication information that it is sent to the X2 of base station 2 and sets up request message at X2 gateway routing failure.Optionally, the follow-up TNL address discovery process of can initiating to base station 2 in base station 1 is to have continued the X2 connection establishment process of itself and base station 2.
Visible, by adopting such scheme, X2 gateway removes, according to the X2 that base station is sent, the X2 that procedure message controls between base station and connects and remove；So, it is ensured that X2 gateway can be known that the X2 between base station connects in time and remove situation so that the X2 link information between its connection base station of X2 gateway energy conventional maintenance, unnecessary X2 message is effectively reduced.
Embodiment two,
The embodiment of the present invention proposes a kind of X2 interface message treatment method, is applied to base station, as it is shown in figure 5, include:
Step 501: generate X2 and remove procedure message；
Step 502: send X2 and remove procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
Here, described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
It is understood that corresponding with embodiment one, described transmission X2 removes procedure message and also possesses two kinds of situations to X2 gateway:
Situation one, described X2 is removed procedure message be contained in X2 interface information transfer message send；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
Situation two, described transmission X2 remove procedure message to X2 gateway, including: it is not included in X2 interface information transfer message, but directly transmits X2 and remove procedure message.
Wherein, described X2 removes the identification information carrying target BS and/or source base station in procedure message.
As in figure 2 it is shown, wherein, base station (eNB) 1 and base station (eNB) 2 can be Home eNodeB or macro base station, is set up by X2 gateway and complete the X2 method removed under X2 connection between base station.Particularly as follows:
Step 201, base station 1 and base station 2 are set up X2 by X2 gateway and are connected, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway connected, this X2 removes request message and is not encapsulated in X2AP messaging message, but is transmitted directly to X2 gateway.
Wherein, described X2 removes the base station identification information comprising source and target base station in request message, the i.e. eNBID of base station 1 and base station 2.
Step 202, X2 gateway removes the target BS mark in request message according to the X2 that base station 1 is sent, and X2 removes request message and routes to base station 2.
Step 203, when base station 2 according to the X2 received remove request message determine the X2 between its with base station 1 is connected remove time, to X2 gateway reply X2 remove response message.
Wherein, described X2 removes response message and is not encapsulated in X2AP messaging message equally, but is transmitted directly to X2 gateway.Described X2 removes the base station identification information comprising source base station and target BS in response message.
Further, base station 2 can be deleted the X2 with base station 1 and is connected relevant information, and described X2 connects relevant information and may include that resource, application layer configuration data.
Step 204, receives and also can perform corresponding X2 after X2 removes response message and remove operation, deletes by the X2 connection relation information of base station 1 and base station 2.
If the SCTP that follow-up X2 gateway detects between its with base station 1 (or base station 2) is connected disconnection, then will send X2 release message and there is the X2 base station being connected to between base station 1 (or base station 2).Owing to the X2 connection relation information of base station 1 and base station 2 is deleted by X2 gateway, X2 gateway will not send X2 release message to base station 2 (or base station 1).
Step 205, X2 is removed response message according to the X2 the received target BS mark removed in response message and routes to base station 1 by X2 gateway.
Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Fig. 3 is described to be set up by X2 gateway between base station and completes the X2 method removed under X2 connection, including:
Step 301, base station 1 and base station 2 are connected by X2 gateway, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway of its connection, concrete, this X2 removes request message and is encapsulated in X2 interface information transfer message and sends.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 1 and base station 2.Optionally, also including X2 and remove instruction information in this message, it is X2REMOVAL process (or X2REMOVAL request) message that this X2 removes instruction information for indicating what comprise in this X2 interface information transfer message.
Step 302, this message is routed to base station 2 according to the target BS identification information in this message after receiving X2 interface information transfer message by X2 gateway.
Step 303, base station 2 accepts to be connected the X2 between its with base station 1 to remove, then reply X2 to X2 gateway and remove response message.Similar, this X2 removes response message and is encapsulated in transmission in X2AP message transmission (X2APMESSAGETRANSFER) message.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 2 and base station 1.It addition, also comprise X2REMOVAL in this message to indicate information, this X2REMOVAL indicates information to be X2REMOVAL process (or X2REMOVAL response) message for indicating what comprise in this X2 interface information transfer message.Then, base station 2 can be deleted and be connected relevant information to the X2 of base station 1, such as resource, application layer configuration data etc..After X2 gateway receives X2 interface information transfer message, it is resolved to and wherein comprises X2REMOVAL and indicate information, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.Or, X2 gateway is resolved to after comprising X2REMOVAL instruction information in the X2 interface information transfer message received, resolve the X2AP message of encapsulation in this message, if the X2AP message of this encapsulation is X2REMOVAL response message, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.
Step 304, the X2 interface information transfer message encapsulating X2 and removing response message is routed to base station 1 by X2 gateway.Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Visible, by adopting such scheme, X2 gateway removes, according to the X2 that base station is sent, the X2 that procedure message controls between base station and connects and remove；So, it is ensured that X2 gateway can be known that the X2 between base station connects in time and remove situation so that the X2 link information between its connection base station of X2 gateway energy conventional maintenance, unnecessary X2 message is effectively reduced.
Embodiment three,
Present embodiments providing a kind of X2 gateway, as shown in Figure 6, described X2 gateway includes:
Receiving unit 61, the X2 sent for receiving base station removes procedure message；
Processing unit 62, for removing, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
Described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
Described reception unit 61, specifically for receiving X2 interface information transfer message；Accordingly, described processing unit 62, remove procedure message specifically for extracting X2 from described X2 interface information transmission information；Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
Described processing unit 62, specifically for receiving X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or,
After receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
Described reception unit 61, the X2 directly transmitted specifically for receiving base station removes procedure message.Described X2 removes the identification information carrying target BS and/or source base station in procedure message.
Described reception unit 61, is additionally operable to receive X2 and removes response message；Accordingly, described processing unit 62, it is additionally operable to remove the identification information extracting source base station and the target BS carried response message from described X2, chooses and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
Described reception unit 61, is additionally operable to receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and source base station；Accordingly, described processing unit 62, it is additionally operable to judge whether described X2 interface message meets first pre-conditioned, when cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and target BS.
Described processing unit 62, if specifically for described X2 interface message cannot be processed, or, it is impossible to it route described X2 interface message, then cannot correctly perform described X2 interface flow process.
Embodiment four,
Present embodiments provide a kind of base station, as it is shown in fig. 7, described base station includes:
Processing unit 71, is used for generating X2 and removes procedure message；
Transmitting element 72, is used for sending X2 and removes procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
Described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
Described transmitting element 72, is contained in X2 interface information transfer message sends specifically for described X2 removes procedure message；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
Described transmitting element 72, is contained in X2 interface information transfer message specifically for described X2 not being removed procedure message, but directly transmits X2 and remove procedure message.Described X2 removes the identification information carrying target BS and/or source base station in procedure message.
Visible, by adopting such scheme, X2 gateway removes, according to the X2 that base station is sent, the X2 that procedure message controls between base station and connects and remove；So, it is ensured that X2 gateway can be known that the X2 between base station connects in time and remove situation so that the X2 link information between its connection base station of X2 gateway energy conventional maintenance, unnecessary X2 message is effectively reduced.
And base station can correctly identify the X2 process that the mistake instruction message received is corresponding so that base station correctly performs X2 interface function.
Embodiment five,
Present embodiments providing a kind of X2 interface message handling system, as shown in Figure 8, described system includes: base station 81 and X2 gateway 82；Wherein,
Described X2 gateway 81, the X2 sent for receiving base station removes procedure message；The link information that procedure message removes the X2 interface of corresponding base station is removed according to described X2；
Described base station 82, is used for generating X2 and removes procedure message；Send X2 and remove procedure message to X2 gateway.
Fig. 9 gives one of scene that the embodiment of the present invention applies, and wherein, by visible in figure, Access Network is formed Access Network by multiple evolved base station (eNB), multiple Home eNodeB (HeNB), X2 gateway and HeNB gateway；ENB connects mobile management entity (MME) or gateway (S-GW) by S1 interface, namely transmits message by X2 interface between eNB or HeNB, and all adopts S1 interface transmission message between eNB or HeNB and HeNB gateway.Described base station includes: macro base station, and/or Home eNodeB.
The method provided for the present embodiment below by scene illustrates.
As in figure 2 it is shown, wherein, base station (eNB) 1 and base station (eNB) 2 can be Home eNodeB or macro base station, is set up by X2 gateway and complete the X2 method removed under X2 connection between base station.Particularly as follows:
Step 201, base station 1 and base station 2 are set up X2 by X2 gateway and are connected, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway connected, this X2 removes request message and is not encapsulated in X2AP messaging message, but is transmitted directly to X2 gateway.
Wherein, described X2 removes the base station identification information comprising source and target base station in request message, the i.e. eNBID of base station 1 and base station 2.
Step 202, X2 gateway removes the target BS mark in request message according to the X2 that base station 1 is sent, and X2 removes request message and routes to base station 2.
Step 203, when base station 2 according to the X2 received remove request message determine the X2 between its with base station 1 is connected remove time, to X2 gateway reply X2 remove response message.
Wherein, described X2 removes response message and is not encapsulated in X2AP messaging message equally, but is transmitted directly to X2 gateway.Described X2 removes the base station identification information comprising source base station and target BS in response message.
Further, base station 2 can be deleted the X2 with base station 1 and is connected relevant information, and described X2 connects relevant information and may include that resource, application layer configuration data.
Step 204, receives and also can perform corresponding X2 after X2 removes response message and remove operation, deletes by the X2 connection relation information of base station 1 and base station 2.
If the SCTP that follow-up X2 gateway detects between its with base station 1 (or base station 2) is connected disconnection, then will send X2 release message and there is the X2 base station being connected to between base station 1 (or base station 2).Owing to the X2 connection relation information of base station 1 and base station 2 is deleted by X2 gateway, X2 gateway will not send X2 release message to base station 2 (or base station 1).
Step 205, X2 is removed response message according to the X2 the received target BS mark removed in response message and routes to base station 1 by X2 gateway.
Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Fig. 3 is described to be set up by X2 gateway between base station and completes the X2 method removed under X2 connection, including:
Step 301, base station 1 and base station 2 are connected by X2 gateway, if base station 1 detects that the X2 that need to remove between its with base station 2 is connected, then send X2 and remove request message to the X2 gateway of its connection, concrete, this X2 removes request message and is encapsulated in X2 interface information transfer message and sends.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 1 and base station 2.Optionally, also including X2 and remove instruction information in this message, it is X2REMOVAL process (or X2REMOVAL request) message that this X2 removes instruction information for indicating what comprise in this X2 interface information transfer message.
Step 302, this message is routed to base station 2 according to the target BS identification information in this message after receiving X2 interface information transfer message by X2 gateway.
Step 303, base station 2 accepts to be connected the X2 between its with base station 1 to remove, then reply X2 to X2 gateway and remove response message.Similar, this X2 removes response message and is encapsulated in transmission in X2AP message transmission (X2APMESSAGETRANSFER) message.This X2 interface information transfer message comprises the base station identification information of source and target base station, i.e. the eNBID of base station 2 and base station 1.It addition, also comprise X2REMOVAL in this message to indicate information, this X2REMOVAL indicates information to be X2REMOVAL process (or X2REMOVAL response) message for indicating what comprise in this X2 interface information transfer message.Then, base station 2 can be deleted and be connected relevant information to the X2 of base station 1, such as resource, application layer configuration data etc..After X2 gateway receives X2 interface information transfer message, it is resolved to and wherein comprises X2REMOVAL and indicate information, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.Or, X2 gateway is resolved to after comprising X2REMOVAL instruction information in the X2 interface information transfer message received, resolve the X2AP message of encapsulation in this message, if the X2AP message of this encapsulation is X2REMOVAL response message, then perform corresponding X2 and remove operation, delete by the X2 connection relation information of base station 1 and base station 2.
Step 304, the X2 interface information transfer message encapsulating X2 and removing response message is routed to base station 1 by X2 gateway.Base station 1 can be deleted after receiving and be connected relevant information to the X2 of base station 2, such as resource, application layer configuration data etc..
Further, described base station includes: macro base station, and/or Home eNodeB.
Fig. 4 gives the wrong indicating means setting up under X2 connection by X2 gateway between base station, including:
Step 401, X2 Establishing process to be initiated with base station 2 in base station 1, and the X2 setting up agency owing to requiring over X2 gateway connects, then first base station 1 sends X2 interface information transfer message to X2 gateway.This X2 interface information transfer message comprises the eNBID of source and target base station, and corresponding X2 sets up message.The target BS of this message is base station 2.
Step 402, base station 1 is wanted to initiate X2 to base station 3 and is removed flow process, connects owing to setting up X2 by X2 gateway between base station 1 and base station 3, then this X2 interface information transfer message is sent to X2 gateway by base station 1.Comprising the eNBID of source and target base station and corresponding X2REMOVAL message in this X2 interface information transfer message, wherein target BS is base station 3.
Step 403, the X2 interface information transfer message comprising X2REMOVAL message is routed to base station 3 according to EnbID and the IP address information of the connected base station of its maintenance by X2 gateway.
Step 404, safeguards, owing to preserving in X2 gateway, EnbID and the IP address mapping information having base station 2, and it cannot route its X2 interface information transfer message that target BS is base station 2 received from base station 1.
Step 405, X2 gateway cannot route X2 interface information transfer message, then send mistake instruction message to base station 1.Including at least the target BS identification information (namely eNBID of base station 2) in its X2 interface information transfer message that cannot route in this mistake instruction message.Optionally, this mistake instruction message also can comprise the eNBID information of base station 1.Namely base station 1 can determine that after receiving this Defect Indication information that it is sent to the X2 of base station 2 and sets up request message at X2 gateway routing failure.Optionally, the follow-up TNL address discovery process of can initiating to base station 2 in base station 1 is to have continued the X2 connection establishment process of itself and base station 2.
Visible, by adopting such scheme, X2 gateway removes, according to the X2 that base station is sent, the X2 that procedure message controls between base station and connects and remove；So, it is ensured that X2 gateway can be known that the X2 between base station connects in time and remove situation so that the X2 link information between its connection base station of X2 gateway energy conventional maintenance, unnecessary X2 message is effectively reduced.
And base station can correctly identify the X2 process that the mistake instruction message received is corresponding so that base station correctly performs X2 interface function.
In several embodiments provided herein, it should be understood that disclosed equipment and method, it is possible to realize by another way.Apparatus embodiments described above is merely schematic, such as, the division of described unit, it is only a kind of logic function to divide, actual can have other dividing mode when realizing, and as: multiple unit or assembly can be in conjunction with, or is desirably integrated into another system, or some features can ignore, or do not perform.It addition, the coupling each other of shown or discussed each ingredient or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, equipment or unit, it is possible to be electrical, machinery or other form.
The above-mentioned unit illustrated as separating component can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, it is also possible to be distributed on multiple NE；Part or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in various embodiments of the present invention can be fully integrated in a processing module, it is also possible to be that each unit is individually as a unit, it is also possible to two or more unit are integrated in a unit；Above-mentioned integrated unit both can adopt the form of hardware to realize, it would however also be possible to employ hardware adds the form of SFU software functional unit and realizes.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage medium includes: movable storage device, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (30)
1. an X2 interface message treatment method, is applied to X2 gateway, it is characterised in that described method includes:
The X2 receiving base station transmission removes procedure message；
The link information that procedure message removes the X2 interface of corresponding base station is removed according to described X2.
2. method according to claim 1, it is characterised in that described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
3. method according to claim 2, it is characterised in that described in receive base station send X2 remove procedure message, including: receive X2 interface information transfer message, from described X2 interface information transmission information extract X2 remove procedure message；
Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
4. according to the method in claim 2 or 3, it is characterised in that described remove the link information of X2 interface that procedure message removes the base station of correspondence according to described X2, including:
Receive X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or, after receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
5. method according to claim 1, it is characterised in that described in receive the X2 that base station sends and remove procedure message, receive, including: X2 gateway, the X2 that base station directly transmits and remove procedure message.
6. method according to claim 5, it is characterised in that described X2 removes the identification information carrying target BS and/or source base station in procedure message.
7. the method according to claim 5 or 6, it is characterised in that described method also includes:
Receive X2 and remove response message, then remove the identification information extracting source base station and the target BS carried response message from described X2, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
8. method according to claim 1, it is characterised in that described method also includes:
Receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and/or source base station；
When cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and/or target BS.
9. method according to claim 8, it is characterised in that described cannot correctly perform described X2 interface flow process, including: described X2 interface message cannot be processed；Or, it is impossible to it route described X2 interface message.
10. an X2 interface message treatment method, is applied to base station, it is characterised in that described method includes:
Generate X2 and remove procedure message；
Send X2 and remove procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
11. method according to claim 10, it is characterised in that described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
12. method according to claim 10, it is characterised in that described transmission X2 removes procedure message to X2 gateway, including:
Described X2 removes procedure message be contained in X2 interface information transfer message and send；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
13. method according to claim 10, it is characterised in that described transmission X2 removes procedure message to X2 gateway, including: it is not included in X2 interface information transfer message, but directly transmits X2 and remove procedure message.
14. method according to claim 13, it is characterised in that described X2 removes the identification information carrying target BS and/or source base station in procedure message.
15. an X2 gateway, it is characterised in that described X2 gateway includes:
Receiving unit, the X2 sent for receiving base station removes procedure message；
Processing unit, for removing, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
16. X2 gateway according to claim 15, it is characterised in that described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
17. X2 gateway according to claim 16, it is characterised in that
Described reception unit, specifically for receiving X2 interface information transfer message；
Accordingly, described processing unit, remove procedure message specifically for extracting X2 from described X2 interface information transmission information；
Wherein, described X2 interface information transfer message carries X2 and removes instruction information；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
18. the X2 gateway according to claim 16 or 17, it is characterized in that, described processing unit, specifically for receiving X2 interface information transfer message, if X2 interface information transfer message including X2 remove instruction information, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS；
Or,
After receiving X2 interface information transfer message, if X2 interface information transfer message comprising X2 remove instruction information, from described X2 interface information transfer message, then extract X2 interface message, when described X2 interface message is that X2 removes response message, from described X2 interface information transfer message, then extract the identification information of source base station and the target BS carried, choose and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
19. X2 gateway according to claim 15, it is characterised in that described reception unit, the X2 directly transmitted specifically for receiving base station removes procedure message.
20. X2 gateway according to claim 19, it is characterised in that described X2 removes the identification information carrying target BS and/or source base station in procedure message.
21. the X2 gateway according to claim 19 or 20, it is characterised in that described reception unit, it is additionally operable to receive X2 and removes response message；
Accordingly, described processing unit, it is additionally operable to remove the identification information extracting source base station and the target BS carried response message from described X2, chooses and remove the X2 connection relation information between source base station and target BS according to the identification information of described source base station and target BS.
22. X2 gateway according to claim 15, it is characterised in that described reception unit, it is additionally operable to receive the X2 interface message sent base station；Described X2 interface message carries the identification information of target BS and source base station；
Accordingly, described processing unit, it is additionally operable to judge whether described X2 interface message meets first pre-conditioned, when cannot correctly perform described X2 interface flow process, send mistake instruction message to described base station, wherein, described mistake instruction message comprises the base station identification information of described source base station and target BS.
23. X2 gateway according to claim 22, it is characterised in that described processing unit, if specifically for described X2 interface message cannot be processed, or, it is impossible to it route described X2 interface message, then cannot correctly perform described X2 interface flow process.
24. a base station, it is characterised in that described base station includes:
Processing unit, is used for generating X2 and removes procedure message；
Transmitting element, is used for sending X2 and removes procedure message to X2 gateway, so that described X2 gateway removes, according to described X2, the link information that procedure message removes the X2 interface of corresponding base station.
25. base station according to claim 24, it is characterised in that described X2 removes procedure message and includes following at least one: X2 removes request message, X2 removes response message, X2 removes failed message.
26. base station according to claim 24, it is characterised in that described transmitting element, it is contained in X2 interface information transfer message sends specifically for described X2 being removed procedure message；Described X2 removes instruction information for indicating the type of message comprised in described X2 interface information transfer message or for removing the instruction information of operation for controlling X2 gateway execution X2；
Described type of message includes following several: X2 removes request message, X2 removes response message, X2 removes failed message.
27. base station according to claim 24, it is characterised in that described transmitting element, it is contained in X2 interface information transfer message specifically for described X2 not being removed procedure message, but directly transmits X2 and remove procedure message.
28. method according to claim 27, it is characterised in that described X2 removes the identification information carrying target BS and/or source base station in procedure message.
29. an X2 interface message handling system, it is characterised in that described system includes: base station and X2 gateway；Wherein,
Described X2 gateway, the X2 sent for receiving base station removes procedure message；The link information that procedure message removes the X2 interface of corresponding base station is removed according to described X2；
Described base station, is used for generating X2 and removes procedure message；Send X2 and remove procedure message to X2 gateway.
30. system according to claim 29, it is characterised in that described base station includes: macro base station, and/or Home eNodeB.
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|---|---|---|---|
| CN201410856538.2A CN105813230A (en) | 2014-12-31 | 2014-12-31 | X2 interface message processing method, base station, X2 gateway and system |
| PCT/CN2015/086287 WO2016107179A1 (en) | 2014-12-31 | 2015-08-06 | X2 interface message processing method, base station, x2 gateway, and system |
| PCT/CN2015/099872 WO2016107580A1 (en) | 2014-12-31 | 2015-12-30 | X2 interface message processing method, base station, x2 gateway, system, and storage medium |
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| CN201410856538.2A CN105813230A (en) | 2014-12-31 | 2014-12-31 | X2 interface message processing method, base station, X2 gateway and system |
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| CN103716821A (en) * | 2012-09-29 | 2014-04-09 | 中兴通讯股份有限公司 | X2 connection fault processing method, information transmission-reception method, apparatus and system |
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| CN102790984B (en) * | 2009-03-13 | 2016-05-11 | 日本电气株式会社 | Wireless communication system, wireless base station and wireless communications method |
| CN102378209B (en) * | 2010-08-13 | 2015-01-07 | 华为技术有限公司 | X2 interface building method, management method and management device |
| EP2575392A1 (en) * | 2011-09-27 | 2013-04-03 | Alcatel Lucent | Enhanced handover procedure in a E-UTRAN between Home eNodeBs (HeNBs) connected to a Home eNodeB Gateway (HeNB GW) |
| CN103716847B (en) * | 2012-09-28 | 2019-06-14 | 北京三星通信技术研究有限公司 | A method of X2 is established by gateway |
| CN102958197B (en) * | 2012-11-19 | 2015-07-22 | 华为技术有限公司 | Method for establishing X2 service signaling connection, base station and CSG (cell site gateway) |
| CN103974453A (en) * | 2013-02-03 | 2014-08-06 | 中兴通讯股份有限公司 | Method for establishing X2 port, base station, information processing method and gateway |
| CN104519594B (en) * | 2013-09-27 | 2019-08-30 | 中兴通讯股份有限公司 | Connect method for building up and device, system |
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