CN104661265A - Method and equipment for establishing X2 and transmitting information - Google Patents

Method and equipment for establishing X2 and transmitting information Download PDF

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Publication number
CN104661265A
CN104661265A CN201310597132.2A CN201310597132A CN104661265A CN 104661265 A CN104661265 A CN 104661265A CN 201310597132 A CN201310597132 A CN 201310597132A CN 104661265 A CN104661265 A CN 104661265A
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China
Prior art keywords
base station
x2gw
message
enb
address
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CN201310597132.2A
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Chinese (zh)
Inventor
许丽香
王弘
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Beijing Samsung Telecom R&D Center
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Application filed by Beijing Samsung Telecommunications Technology Research Co Ltd, Samsung Electronics Co Ltd filed Critical Beijing Samsung Telecommunications Technology Research Co Ltd
Priority to CN201310597132.2A priority Critical patent/CN104661265A/en
Publication of CN104661265A publication Critical patent/CN104661265A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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

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

Abstract

The embodiment of the invention provides a method for establishing X2 and transmitting information. The method comprises the following steps: using a base station to acquire an IP address of a neighbor base station; using the base station to send base station identification, neighbor base station identification, the neighbor base station IP address and an X2 establishment request message to an X2GW. The embodiment of the invention further provides equipment for establishing X2 and transmitting information. According to the technical scheme, impact on the macro base station is effectively reduced, and burden on the macro base station is reduced. By adoption of the method and the equipment, an operator does not need additional configuration work, so that the configuration complexity of the operator is effectively reduced, moreover, influence on existing norms is reduced, and X2 handover is feasible.

Description

Set up X2 and carry out the method and apparatus of information transmission
Technical field
The present invention relates to mobile communication technology, particularly set up X2 and carry out the method and apparatus of information transmission.
Background technology
In a current mobile communication system, in order to provide better service to customer group, multiple radio resource management entity is formed a CSG(closed user group for particular group by frequent needs)---such as, namely all users of a company or school inside are specific customer groups, for this customer group, multiple radio resource management entity is formed a closed user group, special access service is provided; Wherein, managing radio resources in radio resource management entity and Radio Access Network, be responsible for the network entity of subscriber equipment access, the base station in such as various mobile communication system or community.For a specific customer group, be ubiquitous in mobile communication system by the situation of multiple radio resource management entity composition closed user group.In order to this situation is clearly described, below for SAE(system architecture evolution) LTE(Long Term Evolution) system is described.
Fig. 1 is the structural representation of LTE system, as shown in FIG., in the Radio Access Network of LTE system, radio resource management entity comprises eNB(macro base station) and HeNB(base station from home), comprise HeNB GW(home base-station gateway in Radio Access Network alternatively).ENB can with the MME(mobile management entity in core network) be directly connected, when including HeNB GW in Radio Access Network, HeNB needs to be connected by HeNB GW and MME; And when not comprising HeNB GW in Radio Access Network, HeNB then directly can be connected with MME.
For the radio resource management entity in LTE system, in order to provide more abundant access service, for HeNB, providing polytype HeNB, HeNB in prior art and specifically comprising style of opening, mixed type and closed user group type.Wherein, opening HeNB does not have the customer group of specific access restriction, any UE(subscriber equipment) can access; Closed user group type HeNB, a company of such as above introduction or school inside, the user of all user's compositions organizes the HeNB used, closed user group type HeNB only allows the subscriber equipment in particular group to access, for ease of describe, below by the subscriber equipment in particular group referred to as CSG subscriber equipment; Mixed type HeNB then both constituted closed user group with other HeNB, the CSG subscriber equipment access allowing it to serve, so that provide the access service of high-quality more for this CSG subscriber equipment, also can allow other non-CSG subscriber equipment accesses simultaneously, wherein, namely non-CSG subscriber equipment does not belong to the subscriber equipment of this CSG).
Described as can be seen from above, in existing mobile communication system, for radio resource management entity, not only closed user group type can be formed by multiple radio resource management entity, there is provided the radio resource management entity of closed user group type, as closed user group type HeNB; And in order to provide more abundant access service, the radio resource management entity of mixed type can also be provided, as the HeNB of mixed type.Meanwhile, macro base station eNB also can support the function of CSG, or when supporting CSG function, is used as mixed type eNB to use.
In the prior art, such as eNB1 finds a new adjacent area, and the X2 process of establishing that eNB1 triggers as shown in Figure 2, is below introduced the main process that X2 sets up, roughly comprised the following steps:
Step 201, eNB1 has found a new adjacent area.
ENB1 obtains new adjacent area by the report of UE, and new adjacent area is at eNB2.
Step 202, eNB1 sends eNB to MME and configures Transfer Message.Comprise source eNB in eNB configuration Transfer Message to identify, object eNB mark and SON information.The global eNB mark that eNB mark in source is arranged to eNB1 and the TAI selected.The global eNB mark that object eNB mark is arranged to eNB2 and the TAI selected.SON information is arranged to information request, request X2 transport layer configuration information.
Step 203, MME finds object eNB according to object eNB mark, sends MME and configures Transfer Message to eNB2, and wherein, object eNB mark comprises the TAI that global eNB identifies and selects.
Step 204, eNB2 sends eNB and configures Transfer Message to MME.Described message comprises source eNB mark and object eNB identifies and SON information.The global eNB mark that eNB mark in source is arranged to eNB2 and the TAI selected.The global eNB mark that object eNB mark is arranged to eNB1 and the TAI selected.SON information comprises SON information response, and SON information response comprises eNB2 transport layer address.
Step 205, MME sends MME to eNB1 and configures Transfer Message.
Step 206, eNB1 sends X2 to eNB2 and sets up request message.
Step 207, eNB2 sends X2 to eNB1 and sets up response message.
In the scene existed there being base station from home, in order to reduce the impact on core net, proposing and supporting that the X2 between eNB and base station from home switches.The Numerous of base station from home in the coverage considering eNB, be connected if eNB sets up X2 with the base station from home of each vicinity, large burden can be brought to eNB, the particularly burden of transport layer, and base station from home can frequent start and close, also can bring negative impact, therefore propose X2GW(X2 gateway to eNB) concept, as shown in Figure 3, HeNB is connected by X2GW with eNB.
In such a scenario, existing X2 process of establishing cannot complete the X2 process of establishing of HeNB or eNB by the HeNB of X2GW and opposite end, and how performing X2 process of establishing and how to carry out information transmission by X2GW, is that prior art does not solve.Even if existing a kind of mode is the configuration by operator, configuration eNB, HeNB, X2GW, set up and solve follow-up communication, but this method also can bring very large burden to operator.
Therefore, be necessary to propose effective technical scheme, solve the above-mentioned problems in the prior art.
Summary of the invention
In order to solve problems of the prior art, the invention provides and a kind ofly set up X2 by gateway and carry out the method for information transmission.
For achieving the above object, the embodiment of the present invention proposes a kind of X2 of foundation on the one hand and carries out the method for information transmission, comprises the following steps:
Base station obtains the IP address of neighbor base station;
Described base station sends the mark of described base station to X2GW, the mark of described neighbor base station, and the IP address of described neighbor base station and X2 set up request message.
The embodiment of the present invention also proposed a kind of X2 of foundation on the other hand and carries out the equipment of information transmission, comprises receiver module and sending module,
Described receiver module, for obtaining the IP address of neighbor base station;
Described sending module, for sending the mark of described base station to X2GW, the mark of described neighbor base station, the IP address of described neighbor base station and X2 set up request message.
The such scheme that the present invention proposes, effectively can reduce the impact on macro base station, alleviate the burden of macro base station.The technical scheme adopting the present invention to propose, carries out extra configuration effort without the need to operator, effectively can reduce the complexity of operator's configuration.In addition, the technical scheme adopting the present invention to propose, decreases the impact on existing specification, X2 is switched practical, very little to the change of existing communication system, can not the compatibility of influential system, and realizes simple, efficient.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the structural representation of LTE system in prior art;
Fig. 2 is the X2 process of establishing in prior art between eNB and eNB;
Fig. 3 is the system architecture schematic diagram comprising X2 gateway;
Fig. 4 is that the embodiment of the present invention is set up X2 and carries out the method flow diagram of information transmission
Fig. 5 is that the present invention sets up X2 by gateway and carries out the application scenarios one of information transmission.
Fig. 6 is that the present invention sets up X2 by gateway and carries out the application scenarios two of information transmission;
Fig. 7 is that the embodiment of the present invention is set up X2 and carries out the structural representation of the equipment of information transmission.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
In order to realize object of the present invention, the present invention proposes a kind of X2 of foundation and carrying out the method for information transmission, comprising the following steps:
Base station obtains the IP address of neighbor base station;
Base station sends the mark of base station to X2GW, and the mark of neighbor base station, the IP address of neighbor base station and X2 set up request message.
Base station is the mark of described base station, and the mark of neighbor base station, the IP address of neighbor base station and X2 set up request message and be included in X2AP message transfers message and send to X2GW.X2AP message transfers is a new X2AP message, and for sending existing X2AP message between base station and X2GW, such as existing X2 sets up request, X2 sets up response, the existing X2AP message such as handover request.
The such scheme that the present invention proposes, effectively can reduce the impact on macro base station, alleviate the burden of macro base station.The technical scheme adopting the present invention to propose, carries out extra configuration effort without the need to operator, effectively can reduce the complexity of operator's configuration.In addition, the technical scheme adopting the present invention to propose, decreases the impact on existing specification, X2 is switched practical.
As shown in Figure 4, set up X2 for the embodiment of the present invention and carry out the method flow diagram of information transmission, comprising S410 to S420, below each step being described.
S410: base station obtains the IP address of neighbor base station.
In step S410, base station obtains the IP address of neighbor base station by transport network layer address discovery process.
As embodiments of the invention, base station or neighbor base station comprise: eNB or HeNB.
Therefore, the different situations for base station are illustrated by application scenarios one hereinafter and application scenarios two.
S420: base station sends the mark of base station to X2GW, and the mark of neighbor base station, the IP address of neighbor base station and X2 set up request message.
Base station is the mark of described base station, and the mark of neighbor base station, the IP address of neighbor base station and X2 set up request message and be included in X2AP message transfers message and send to X2GW.X2AP message transfers is a new X2AP message, and for sending existing X2AP message between base station and X2GW, such as existing X2 sets up request, X2 sets up response, the existing X2AP message such as handover request.
As embodiments of the invention, X2GW can preserve the mark of the contiguous base station from home received and the IP address of contiguous base station from home, and preserves mark and the IP address of source base station.
Thereafter, the X2AP message received is sent to contiguous base station from home by X2AP message transfers message by X2 gateway.If contain the IP address of neighbor base station in the X2AP message transfers message that X2GW receives, X2GW sends X2AP message transfers message to corresponding neighbor base stations according to this IP address.If only comprise the mark of neighbor base station in the X2AP message transfers message received, then the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, know and which base station be X2AP message transfers message sent to.
If contain the IP address of neighbor base station in the X2AP message transfers message that X2GW receives, when X2GW sends X2AP message transfers message to neighbor base station, can comprise or not comprise the IP address of neighbor base station.
As embodiments of the invention, base station, except sending message to X2GW, also comprises the X2AP message transfers message receiving X2GW and send.
In addition, base station is when X2GW communicates with neighbor base station, and the mark of base station notice X2GW neighbor base station, sends X2AP message transfers message to corresponding base station via X2GW according to the corresponding relation of the Base Station Identification preserved and IP address.Namely, the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, know and which base station be X2AP message transfers message sent to.
In order to explain the present invention further, below in conjunction with concrete application scenarios, the present invention is introduced.For ease of illustrate, hereinafter with (H) since eNB represents that base station can be HeNB, also can be eNB.
Application scenarios one:
The present invention set up X2 by gateway and the application scenarios one carrying out X2 interface information transmission as shown in Figure 5.In this application scene, HeNB finds the adjacent area under new (H) eNB, triggers X2 process of establishing.Here is the detailed description to this application scenarios.Be omitted here the detailed description of step unrelated to the invention.
Step 501, HeNB has found new adjacent area.
HeNB, by the report of UE, obtains new adjacent area.HeNB, by the report of UE, obtains enhancing Cell Global Identity ECGI and TAI of adjacent area.Global eNB can be obtained according to ECGI to identify.HeNB determines to initiate TNL address discovery process.
Step 502, HeNB sends eNB to MME and configures Transfer Message, comprises source eNB and identifies, object eNB mark and SON information in eNB configuration Transfer Message.The global eNB mark that eNB mark in source is arranged to HeNB and the TAI selected.The global eNB mark that object eNB mark is arranged to new place, adjacent area (H) eNB and the TAI selected.SON information is arranged to information request, request X2 transport layer configuration information.ENB configures the IP address that Transfer Message also comprises source HeNB.If HeNB supports to be connected by the X2 of X2GW, then eNB configures the IP address that Transfer Message also comprises the X2GW that HeNB connects.HeNB knows the IP address of connected X2GW by pre-configured or other modes.
When there being HeNB GW to dispose, eNB configures Transfer Message and issues MME by HeNB GW.
Step 503, MME finds object (H) eNB according to object eNB mark, sends MME and configures Transfer Message to object (H) eNB, and wherein, object eNB mark comprises the TAI that global eNB identifies and selects.
Step 504, (H) eNB sends eNB to MME and configures Transfer Message.ENB configures Transfer Message and comprises source eNB mark, object eNB mark and SON information.The global eNB mark that eNB mark in source is arranged to (H) eNB and the TAI selected.The global eNB mark that object eNB mark is arranged to HeNB and the TAI selected.SON information comprises SON information response, and SON information response comprises (H) eNB transport layer address.If (H) eNB is macro base station, macro base station support is connected by the X2 of X2GW, owing to have received the IP address of the X2GW come from source HeNB in step 503, then configure the IP address not only comprising macro base station oneself in Transfer Message at eNB, also comprise the IP address of the X2GW that macro base station receives.If eNB does not support connected by the X2 of X2GW or do not receive the IP address of X2GW, configure the IP address only comprising eNB oneself in Transfer Message at eNB.If (H) eNB is base station from home and supports to be connected by the X2 of X2GW, then configure the IP address comprising the X2GW that this base station from home connects in Transfer Message at eNB.
Step 505, MME sends MME and configures Transfer Message to HeNB.
When there being HeNB GW to dispose, MME configures Transfer Message and issues HeNB by HeNB GW.
Step 506, HeNB determines the X2 process of establishing of initiation and base station, opposite end.
If HeNB supports to be connected by the X2 of X2GW, and have received the IP address of the X2GW come from base station, opposite end, if the IP address of the X2GW that the IP address of the X2GW come from base station, opposite end received is connected with HeNB is identical, then HeNB can be initiated through the X2 connection establishment process of X2GW; Wherein, the IP address of the received X2GW come from base station, opposite end represents that base station, opposite end is supported to be connected by the X2 of X2GW, when base station, opposite end is HeNB, which X2GW that also indicate two opposite end HeNB to connect is, otherwise initiates and X2 process of establishing that base station, opposite end is direct-connected.Direct-connected X2 process of establishing is same as the prior art, repeats no more here.
HeNB determines that the X2 process of establishing of X2GW is passed through in initiation and base station, opposite end.
Step 506, if also do not set up SCTP association (association) between HeNB and the X2GW connected, HeNB initiates SCTP connection establishment process.
Step 507, HeNB sends X2AP message transfers message to X2GW.Described message comprises the IP address that X2AP message X2 sets up request, the mark of base station, opposite end and the mark of source base station HeNB and base station, opposite end.
The X2AP message that HeNB can comprise in X2AP message transfers message is the IP address that X2 just comprises base station, opposite end when setting up request message.As another method of the present invention, when HeNB also can comprise other X2AP message in X2AP message transfers message, comprise the IP address of base station, opposite end.
X2GW preserves IP address and the mark of the base station, opposite end received, and sends other message to base station, opposite end for described HeNB by X2GW.If when X2GW receives the mark only comprising base station, opposite end in X2AP message transfers afterwards, X2GW knows the IP address of base station, opposite end according to the information of preserving, thus the Message routing received to base station, opposite end.
X2GW have received the IP address that the message come from HeNB can know HeNB, X2GW is according to the mark of the source base station HeNB in the X2AP message transfers message received, X2GW knows that HeNB identifies, and X2GW preserves mark and the IP address of HeNB, sends X2 message to HeNB for follow-up X2GW.
Step 508, X2GW sets up and associates (association) with the SCTP SCTP of opposite end (H) eNB.If (H) established SCTP association between eNB and X2GW, then this step has not needed to perform.
Step 509, X2GW sends X2AP message transfers message to opposite end (H) eNB.X2AP message transfers message comprises the X2AP message received in step 507.According in step 507 receive the IP address of the base station, opposite end that X2AP message transfers message comprises, X2GW sends to correct base station, opposite end X2AP message transfers.If in step 507 receive the IP address that X2AP message transfers message do not comprise base station, opposite end, and contains only the mark of base station, opposite end, the then Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, X2GW sends to correct base station X2AP message transfers message.Receive the X2AP message transfers message come from HeNB follow-up, when only comprising the mark of base station, opposite end and do not comprise the IP address of base station, opposite end, the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, X2GW sends to correct base station X2AP message transfers.If contain the IP address of neighbor base station in the X2AP message transfers message that X2GW receives, when X2GW sends X2AP message transfers message to neighbor base station, can comprise or not comprise the IP address of neighbor base station.
Step 510, (H) eNB sends X2AP message transfers message to X2GW.If comprise X2 in the message that (H) eNB receives to set up request, then in X2AP message transfers message, (H) eNB comprises X2 and sets up response.If what (H) eNB received is other X2AP message, then in X2AP message transfers message, (H) eNB comprises the corresponding response message of other X2AP message.X2AP message transfers message comprises the mark of source base station (H) eNB and the mark of opposite end HeNB.
If (H) eNB can not accept to set up X2, in X2AP message transfers message, (H) eNB comprises X2 and sets up failed message.
Step 511, X2GW sends X2AP message transfers message to HeNB.X2AP message transfers message comprises the X2AP message comprised in step 510X2AP message transfers message.X2GW receives the mark of the HeNB comprised in message, the Base Station Identification of X2GW preservation and IP address corresponding relation according to step 510, X2GW knows which base station is X2AP message transfers message is sent to.
So far, the indirect X2 process of establishing by X2GW between HeNB and (H) eNB is namely completed.By X2 process of establishing, X2GW saves the corresponding relation of source base station HeNB mark and IP address, and object base station (H) eNB identifies and the corresponding relation of IP address.In the communicating of follow-up HeNB and (H) eNB, in the X2AP message transfers message sending to X2GW, only can comprise the mark of respective base station, the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, send to corresponding base station described X2AP message transfers message.
Application scenarios two
Set up X2 by X2 gateway in the present invention, and carry out the application scenarios two of X2 interface information transmission, as shown in Figure 6.In this application scene, (H) eNB finds the adjacent area under a new HeNB, triggers X2 process of establishing.Here is the detailed description to this application scenarios.Be omitted here the detailed description of step unrelated to the invention.
Step 601, (H) eNB finds new adjacent area.
(H) eNB is by the report of UE, obtains new adjacent area.(H) eNB is by the report of UE, obtains ECGI and TAI of adjacent area.Global eNB can be obtained according to ECGI to identify.(H) eNB determines the transport layer address (TNL) of the base station, place, community that please look for novelty.
Step 602, (H) eNB sends eNB and configures Transfer Message to MME.
Comprise source eNB in eNB configuration Transfer Message to identify, object eNB mark and SON information.The global eNB mark that eNB mark in source is arranged to (H) eNB and the TAI selected.The global eNB mark that object eNB mark is arranged to new place, adjacent area HeNB and the TAI selected.SON information is arranged to information request, request X2 transport layer configuration information.
If described base station is HeNB and HeNB supports to be connected by the X2 of X2GW, then eNB configures the IP address that Transfer Message also comprises the X2GW that HeNB connects.
Step 603, MME sends MME and configures Transfer Message to HeNB.The setting that MME configures information element in Transfer Message is identical with in step 602.
When there being HeNB GW to dispose, described eNB configures Transfer Message and issues HeNB by HeNBGW.
Step 604, HeNB sends eNB and configures Transfer Message to MME.
ENB configures Transfer Message and comprises source eNB mark, object eNB mark and SON information.The global eNB mark that eNB mark in source is arranged to described HeNB and the TAI selected.The global eNB mark that object eNB mark is arranged to (H) eNB and the TAI selected.SON information comprises SON information response, and SON information response comprises the IP address of HeNB, also comprise HeNB connect the transport layer address of X2GW.
HeNB knows the IP address of connected X2GW by pre-configured or other method.
When there being HeNB GW to dispose, described eNB configures Transfer Message and issues MME by HeNBGW.
Step 605, MME send MME configure Transfer Message to (H) eNB, MME configure information element in Transfer Message to arrange same step 604 identical.
Step 606, (H) eNB sets up and associates (association) with the SCTP SCTP of X2GW.(H) eNB sets up SCTP according to the transport layer address of the X2GW received in described step 605 with corresponding entity and associates.If (H) established SCTP between eNB and X2GW to connect, then this step has not needed.
Step 607, (H) eNB sends X2AP message transfers message to X2GW.X2AP message transfers message comprises X2 and sets up request, the mark of base station, opposite end and the mark of described (H) eNB and the IP address of base station, opposite end.
(H) eNB can comprise in X2AP message transfers message the IP address just comprising base station, opposite end when X2 sets up request message.As another method of the present invention, when (H) eNB also can comprise other X2AP message in X2AP message transfers message, comprise the IP address of base station, opposite end.
X2GW preserves IP address and the mark of the base station, opposite end received, and sends other message to base station, opposite end for described (H) eNB by X2GW.If when X2GW receives and only comprises the mark of base station, opposite end in X2AP message transfers message afterwards, X2GW knows the IP address of base station, opposite end according to the Base Station Identification of preservation and the corresponding relation of IP address, base station, thus the Message routing received to base station, opposite end.
X2GW have received the IP address that the message come from (H) eNB can know (H) eNB, according to the mark of (H) eNB received in X2AP message transfers message, X2GW knows that (H) eNB identifies, X2GW preserves mark and the IP address of source base station (H) eNB, sends X2 message to described (H) eNB for follow-up X2GW.
Step 608, X2GW sets up and associates (association) with the SCTP SCTP of opposite end HeNB.If established SCTP association between HeNB and X2GW, then this step has not needed to perform.
Step 609, X2GW sends X2AP message transfers message to opposite end HeNB.X2AP message transfers message comprises the X2AP message received in step 607.X2GW sends to correct base station, opposite end according to receiving the IP address that message comprises in step 607 described X2AP message transfers message.If do not comprise the IP address of base station, opposite end in step 607 and contains only the mark of base station, opposite end, then X2GW is according to the corresponding relation of the Base Station Identification preserved and IP address, and described X2AP message transfers message is sent to correct base station.The mark only comprising base station, opposite end the X2AP message transfers message come from (H) eNB is received follow-up, and when not comprising the IP address of base station, opposite end, the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, send to correct base station described X2AP message transfers message.
Step 610, HeNB sends X2AP message transfers message to X2GW.If comprise in the X2AP message transfers message that HeNB receives be X2 set up request, then HeNB comprise X2 set up response in X2AP message transfers.If what HeNB received is other X2AP message, then HeNB comprises the corresponding response message of other X2AP message.Described X2AP message transfers message comprises the mark of described source base station HeNB and the mark of opposite end (H) eNB.
If HeNB can not accept to set up X2, HeNB comprises X2 and sets up failed message in described X2AP message transfers.
Step 611, X2GW sends X2AP message transfers message to (H) eNB.Described message comprises the X2AP message comprised in step 610X2AP message transfers message.X2GW receives the mark of (H) eNB comprised in message, the mark of (H) eNB of X2GW preservation and the corresponding relation of IP address according to step 610, described X2AP message transfers message is sent to corresponding base station.
So far, the indirect X2 process of establishing by X2GW between (H) eNB and HeNB is namely completed.By X2 process of establishing, X2GW saves the corresponding relation of source base station (H) eNB mark and IP address and object base station HeNB identifies and the corresponding relation of IP address.Pass through in communicating of X2GW at follow-up (H) eNBeNB with HeNB, in the X2AP message transfers message sending to X2GW, only can comprise the mark of respective base station, the Base Station Identification of X2GW according to preservation and the corresponding relation of IP address, know and which base station be described X2AP message transfers message sent to.
As shown in Figure 7, the embodiment of the invention also discloses a kind of X2 of foundation and carry out the equipment 700 of information transmission, comprising receiver module 710 and sending module 720.
Wherein, receiver module 710 is for obtaining the IP address of neighbor base station;
Sending module 720 is for sending the mark of base station to X2GW, the mark of neighbor base station, the IP address of neighbor base station and X2 set up request message.
As the embodiment of the said equipment 700, receiver module 710 is for obtaining the IP address of neighbor base station by transport network layer address discovery process.
As the embodiment of the said equipment 700, also comprise:
The X2AP message transfers message that receiver module 710 sends for receiving X2GW.
As the embodiment of the said equipment 700, the said equipment 700 comprises: eNB or HeNB.
As the embodiment of the said equipment 700, equipment 700 is when X2GW communicates with neighbor base station, sending module 720, for notifying the mark of X2GW neighbor base station, sends X2AP message transfers message to corresponding base station via X2GW according to the corresponding relation of the Base Station Identification preserved and IP address.
Those skilled in the art of the present technique are appreciated that the present invention can relate to the equipment for performing the one or more operation in operation described in the application.Described equipment for required object and specialized designs and manufacture, or also can comprise the known device in all-purpose computer, and described all-purpose computer activates or reconstructs with having storage procedure Selection within it.Such computer program can be stored in equipment (such as, computer) in computer-readable recording medium or be stored in and be suitable for store electrons instruction and be coupled in the medium of any type of bus respectively, described computer-readable medium includes but not limited to dish (comprising floppy disk, hard disk, CD, CD-ROM and magneto optical disk), the immediately memory (RAM) of any type, read-only memory (ROM), electrically programmable ROM, electric erasable ROM(EPROM), electrically erasable ROM(EEPROM), flash memory, magnetic card or light card.Computer-readable recording medium comprises for be stored by the readable form of equipment (such as, computer) or any mechanism of transmission information.Such as, computer-readable recording medium comprise memory (RAM) immediately, read-only memory (ROM), magnetic disk storage medium, optical storage medium, flash memory device, with electricity, light, sound or signal (such as carrier wave, infrared signal, digital signal) etc. that other form is propagated.
Those skilled in the art of the present technique are appreciated that the combination that can realize the frame in each frame in these structure charts and/or block diagram and/or flow graph and these structure charts and/or block diagram and/or flow graph with computer program instructions.These computer program instructions can be supplied to the processor of all-purpose computer, special purpose computer or other programmable data processing methods to generate machine, thus create the method for specifying in the frame of implementation structure figure and/or block diagram and/or flow graph or multiple frame by the instruction that the processor of computer or other programmable data processing methods performs.
Those skilled in the art of the present technique are appreciated that various operations, method, the step in flow process, measure, the scheme discussed in the present invention can be replaced, changes, combines or delete.Further, there is various operations, method, other steps in flow process, measure, the scheme discussed in the present invention also can be replaced, change, reset, decompose, combine or delete.Further, of the prior art have also can be replaced with the step in operation various disclosed in the present invention, method, flow process, measure, scheme, changed, reset, decomposed, combined or deleted.
The above is only some embodiments of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. set up X2 and carry out the method for information transmission, it is characterized in that, comprise the following steps:
Base station obtains the IP address of neighbor base station;
Described base station sends the mark of described base station to X2GW, the mark of described neighbor base station, and the IP address of described neighbor base station and X2 set up request message.
2. the X2 of foundation according to claim 1 carry out the method for information transmission, it is characterized in that, described base station obtains the IP address of neighbor base station by transport network layer address discovery process.
3. the X2 of foundation according to claim 1 carry out the method for information transmission, is characterized in that, also comprise:
Described base station receives the X2AP message transfers message that described X2GW sends.
4. described set up X2 according to claims 1 to 3 is one of any and carry out the method for information transmission, described base station or described neighbor base station comprise:
ENB or HeNB.
5. the X2 of foundation according to claim 1 carry out the method for information transmission, it is characterized in that, described base station is when described X2GW communicates with described neighbor base station, described base station notifies the mark of neighbor base station described in described X2GW, sends X2AP message transfers to corresponding base station via described X2GW according to the corresponding relation of the Base Station Identification preserved and IP address.
6. set up X2 and carry out the equipment of information transmission, it is characterized in that, comprise receiver module and sending module,
Described receiver module, for obtaining the IP address of neighbor base station;
Described sending module, for sending the mark of described base station to X2GW, the mark of described neighbor base station, the IP address of described neighbor base station and X2 set up request message.
7. the X2 of foundation according to claim 6 carry out the equipment of information transmission, it is characterized in that, described receiver module is used for the IP address being obtained neighbor base station by transport network layer address discovery process.
8. the X2 of foundation according to claim 6 carry out the equipment of information transmission, is characterized in that, also comprise:
The X2AP message transfers message that described receiver module sends for receiving described X2GW.
9. described set up X2 according to claim 6 to 8 is one of any and carry out the equipment of information transmission, described equipment comprises: eNB or HeNB.
10. the X2 of foundation according to claim 6 carry out the equipment of information transmission, it is characterized in that, described equipment is when described X2GW communicates with described neighbor base station, described sending module, for notifying the mark of neighbor base station described in described X2GW, sends X2AP message transfers to corresponding base station via described X2GW according to the corresponding relation of the Base Station Identification preserved and IP address.
CN201310597132.2A 2013-11-22 2013-11-22 Method and equipment for establishing X2 and transmitting information Pending CN104661265A (en)

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