CN102711281A - Method and device for establishing X2 link between base stations and base stations - Google Patents
Method and device for establishing X2 link between base stations and base stations Download PDFInfo
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- CN102711281A CN102711281A CN2012101592445A CN201210159244A CN102711281A CN 102711281 A CN102711281 A CN 102711281A CN 2012101592445 A CN2012101592445 A CN 2012101592445A CN 201210159244 A CN201210159244 A CN 201210159244A CN 102711281 A CN102711281 A CN 102711281A
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Abstract
The embodiment of the invention provides a method and a device for establishing an X2 link between base stations, and base stations. The method comprises the following steps: when the X2 link is established between a first base station and a second base station, the first base station judges whether the personal logic role is a first role or a second role, and a link negotiation level of the first role is greater than a link negotiation level of the second role; if the personal logic role is judged as the first role, the first base station takes a personally selective stream used for transmitting a piece of request information of the X2 link as a public stream; if the personal logic role is judged as the second role, the first base station takes a stream used for transmitting a piece of request information of the X2 link selected by the second base station as a public stream; and the first base station establishes the X2 link with the second base station through the public stream. The method provided by the invention can solve the problem of the selection conflict of the public stream in a conventional process for establishing the X2 link between the base stations.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to method, device and the base station of setting up the X2 link between a kind of base station.
Background technology
At Long Term Evolution (Long Term Evolution; LTE) in the GSM; Need carry out Signalling exchange between the base station,, and realize that these functions just need set up the X2 link between the base station so that realize between the base station can be based on switching, load balancing and other collaboration features of X2.
The X2 link is to be carried on the SCTP SCTP (Stream Control Transmission Protocol), through Signalling exchange, thereby sets up signaling link.X2 is common stream and dedicated stream with the SCTP flow point in signalling interactive process, and common stream is used to transmit common signaling (non-UE be correlated with signaling), and dedicated stream is used to transmit dedicated signaling (UE be correlated with signaling).
In Stream Control Transmission Protocol; The stream of SCTP can only be chosen as common stream in the base station; Be used to transmit common signaling, and the link signalling of setting up of X2 can initiatively be initiated by home base stations, when promptly link setup is all initiatively initiated in the base station, both sides; The common stream of choosing separately is inconsistent, causes between two base stations final fails to cross same stream and carries out the transmission of common signaling.
In addition, at present a lot of to the method for choosing of common stream, some is to choose specific stream as common stream, some be choose receive article one common signaling stream as common stream; Also some be with fixing stream as the common stream of giving out a contract for a project, in the time of packet receiving, the stream that relies on base station, opposite end transmission article one common signaling is as common stream.
By on can know that when setting up the X2 link, the approach of choosing common stream has nothing in common with each other, so, when carrying out Signalling exchange, be easy to bring unusual between the base station, and also can cause the X2 link establishment unsuccessful when serious.
Summary of the invention
The embodiment of the invention provides method, device and the base station of setting up the X2 link between a kind of base station, in order to solve the existing problem that the common stream that exists in the X2 link process is chosen conflict of between the base station, setting up.
Based on the problems referred to above; Set up the method for X2 link between a kind of base station that the embodiment of the invention provides; Comprise: when the X2 link is set up in first base station and second base station; The logical role of said first base station judges self is that first role still is second role, and said first role's link negotiation rank is greater than said second role's link negotiation rank; If be judged as first role, the stream that is used to send the X2 link request information that self is chosen in then said first base station is as common stream; If be judged as second role, then said first base station with the stream that is used to send the X2 link request information of said second base station selection as common stream; Said first base station utilizes said common stream and said second base station to set up the X2 link.
Set up the device of X2 link between a kind of base station that the embodiment of the invention provides, comprising:
Judge module is used for when the X2 link is set up in affiliated base station and other base stations, and the logical role of base station is that first role still is second role under judging, said first role's link negotiation rank is greater than said second role's link negotiation rank; The common stream determination module is used for if judge module is judged as first role, then with the stream that is used to send the X2 link request information of affiliated base station selection as common stream; If judge module is judged as second role, then with the stream that is used to send the X2 link request information of said other base station selection as common stream; First sets up module, and the X2 link is set up in said common stream and said other base stations of being used to utilize said judge module to confirm.
The base station that the embodiment of the invention provides comprises the device of setting up the X2 link between the above-mentioned base station that the embodiment of the invention provides.
The beneficial effect of the embodiment of the invention comprises: method, device and the base station of setting up the X2 link between a kind of base station that the embodiment of the invention provides; Set up in the X2 link process in base station and other base stations; Utilize the logical role of this base station self; When this base station was first role, the stream that is used to send the X2 link request information that base station self is chosen utilized this common stream to accomplish the foundation of X2 link as common stream with other base stations; Otherwise, when this base station is second role, as common stream, and utilize this common stream to accomplish the foundation of X2 link the stream that is used to send the X2 link request information of other base station selection with other base stations.First role distinguishes through different link negotiation ranks with second role; It is thus clear that; The present invention is the choosing of common stream when realizing setting up the X2 link of the logical role through base station self; Solve the existing problem that the common stream that exists in the X2 link process is chosen conflict of between the base station, setting up, also improved the success rate of link establishment simultaneously.
Description of drawings
Set up the flow chart of the method for X2 link between the base station that Fig. 1 provides for the embodiment of the invention;
Set up the flow chart of X2 link under first kind of situation that Fig. 2 provides for the embodiment of the invention;
First kind of mode under second kind of situation that Fig. 3 provides for the embodiment of the invention set up the flow chart of X2 link;
The second way under second kind of situation that Fig. 4 provides for the embodiment of the invention is set up the flow chart of X2 link;
Set up one of the structure chart of the device of X2 link between the base station that Fig. 5 provides for the embodiment of the invention;
Set up between the base station that Fig. 6 provides for the embodiment of the invention X2 link device structure chart two;
Set up between the base station that Fig. 7 provides for the embodiment of the invention X2 link device structure chart three.
Embodiment
Below in conjunction with Figure of description, the embodiment of setting up method, device and the base station of X2 link between a kind of base station that the embodiment of the invention is provided describes.
Set up the method for X2 link between a kind of base station that the embodiment of the invention provides, base station and another base station are reciprocity each other when needs are set up the X2 link each other; Be convenient explanation; Below with base station called after first base station, with another base station called after second base station, and the following embodiment of the present invention describes with this side of first base station; The flow process that carry out first base station; Change when making this side of second base station and describing, its execution mode is identical, mainly describes as executive agent with first base station at this.
Set up the method for X2 link between a kind of base station that the embodiment of the invention provides, set up the flow chart of the method for X2 link between a kind of base station that the embodiment of the invention that shown in Figure 1 is provides, this flow process specifically may further comprise the steps:
S101: when the X2 link was set up in first base station and second base station, the logical role of first base station judges self was first role or second role; If be judged as first role, execution in step S 102, if be judged as second role, execution in step S103;
S102: the stream that is used to send the X2 link request information that then self is chosen in first base station is as common stream, then execution in step S104;
S103:, then first base station with the stream that is used to send the X2 link request information of second base station selection as common stream, execution in step S104 then;
S104: first base station utilizes the common stream and second base station to set up the X2 link.
Preferably, first role's link negotiation rank is greater than second role's link negotiation rank, in embodiments of the present invention; First role and second role can set up in the SCTP link process in first base station and second base station and define, for example, both wherein a side send INIT and COOKIE ECHO signaling; The opposing party replys INIT ACK signaling, utilizes the difference of this signaling, can first base station be defined as first role or second role; With second base station corresponding be defined as second role or first role; Promptly first role can be defined as service end, and second role is a client, certainly; First role also can be defined as client, and this moment, second role was a service end.The application embodiment is not limited only to above-mentioned role definition mode.
Further, before above-mentioned steps S101, can also comprise the steps:
SCTP SCTP link is set up in first base station and second base station;
First base station obtains the logical role of self.
In embodiments of the present invention, first base station and second base station to choosing of common stream, can be divided into following two kinds of situation when setting up the X2 link:
First kind of situation:
Only set up the X2 link request by the one-sided initiation in first base station or second base station, in the time of in the case, the handling process of choosing common stream realizes through following manner:
First base station judges is first role, and first base station is chosen second base station that flows to that is used to send the X2 link request information and sent the X2 link request information from the stream of SCTP definition, and the stream that will choose is as common stream;
First base station judges is second role, and first base station receives the stream that is used for the X2 link request information that second base station is chosen from the stream of SCTP definition, and the stream that will receive is as common stream.
Be elaborated in the face of the flow process of setting up the X2 link under above-mentioned first kind of situation down;
As shown in Figure 2, the flow process of setting up the X2 link under first kind of situation specifically may further comprise the steps:
S201: first base station and second base station obtain logical role separately after setting up the success of SCTP link.
Preferably, in embodiments of the present invention, for example, the logical role of first base station is first role, i.e. service end, and in such cases, the logical role of second base station is second role, i.e. client.Suppose to arrange to initiate to set up the X2 link request by service end.
S202: first base station promptly is a service end after the logical role of determining self is first role, from the stream of SCTP definition, chooses a stream and initiatively sends X2 foundation request (SETUP REQUEST) signaling to second base station.
In step S202; First base station possibly be second role; Promptly be client, in the case, first base station is not sent X2 to second base station and is set up request; But receive second base station selection be used to send stream that X2 sets up solicited message as common stream, flow to second base station through this and send a reply signaling.
S203: second base station is second role according to own logical role when receiving the X2SETUP REQUEST signaling that send first base station, and no longer the X2 link request is set up in transmission to first base station; And second base station receives the stream that send first base station, with its preservation and as common stream.
S204: second base station is sent X2 through common stream to first base station and is set up response (SETUP RESPONSE) signaling, X2 link establishment success.
Second kind of situation:
First base station and second base station initiate to set up the X2 link request simultaneously, and in the case, the handling process of choosing common stream specifically is divided into following dual mode again:
First kind of mode:
In first kind of mode, in SCTP link establishment success, and first base station obtains after the logical role of self, sets up between the above-mentioned base station in the mode of X2 link, can also comprise the steps:
The stream that is used to send the X2 link request information is chosen in first base station from the stream of SCTP definition;
First base station utilizes selected second base station that flows to send the X2 link request information, and receives the stream that is used for the X2 link request information that second base station is chosen from the stream of SCTP definition.
In the face of the flow process of setting up the X2 link under above-mentioned first kind of mode is elaborated, as shown in Figure 3, this flow process specifically may further comprise the steps down:
S301: first base station and second base station obtain logical role separately after setting up the success of SCTP link.
The logical role of supposing first base station is first role, i.e. service end, and accordingly, the logical role of second base station should be second role, i.e. client, agreement initiates to set up the X2 link request by service end in this flow process.
S302: the stream that first base station and second base station are chosen a SCTP definition respectively, send X2SETUP REQUEST signaling to the other side.
S303: first base station is that first role is a service end according to self logical role after receiving the X2SETUP REQUEST signaling that send second base station, takes from stream that oneself chooses as common stream; Second base station is that second role is a client according to own logical role when receiving the X2SETUP REQUEST signaling that send first base station, with the stream preservation of first base station selection and as common stream.
S304: X2SETUP RESPONSE signaling is sent in second base station that flows to that first base station is chosen through self, and second base station is sent X2SETUP RESPONSE signaling through common stream to first base station, X2 link establishment success.
The second way:
In the second way, after SCTP link establishment success, first base station obtains before the logical role of self, can also comprise the steps:
The stream that is used to send the X2 link request information is chosen in first base station from the stream of SCTP definition;
First base station utilizes selected second base station that flows to send the X2 link request information, and receives the stream that is used for the X2 link request information that second base station is chosen from the stream of SCTP definition.
In the face of the flow process of setting up the X2 link under the above-mentioned second way is elaborated, as shown in Figure 4, this flow process specifically may further comprise the steps down:
S401: first base station and second base station are after setting up the success of SCTP link, and the stream that first base station and second base station are chosen a SCTP definition respectively sends X2SETUP REQUEST signaling to the other side.
S402: first base station and second base station obtain logical role separately when receiving the X2SETUP REQUEST signaling that the other side sends.
The logical role of supposing first base station is first role, i.e. service end, and accordingly, the logical role of second base station is second role, i.e. client.Agreement initiates to set up the X2 link request by service end in this flow process.
S403: first base station selection oneself flows to second base station and sends X2SETUP RESPONSE signaling, and X2SETUP RESPONSE signaling is sent in first base station that flows to that second base station utilizes first base station to send.
S404: stream that oneself chooses is taken from as common stream in first base station after receiving the X2SETUP REQUEST signaling that send second base station; The stream of first base station selection is preserved in second base station and as common stream, the X2 link establishment is successful.
Based on same inventive concept; The embodiment of the invention also provides device and the base station of setting up the X2 link between a kind of base station; Because it is similar to set up the method for X2 link between the principle of dealing with problems in this device and base station and the aforementioned a kind of base station; Therefore the enforcement of this device and base station can repeat part and repeat no more referring to the enforcement of preceding method.
Set up the device of X2 link between a kind of base station that the embodiment of the invention provides, as shown in Figure 5, specifically comprise:
Common stream determination module 502 is used for if judge module 501 is judged as first role, then with the stream that is used to send the X2 link request information of affiliated base station selection as common stream; If judge module 501 is judged as second role, then with the stream that is used to send the X2 link request information of other base station selection as common stream;
First sets up module 503, and the X2 link is set up in the common stream and other base stations that are used to utilize judge module 501 to confirm.
Further, as shown in Figure 5, this device can also comprise:
Second sets up module 504, and the logical role that is used for base station under judge module 501 is judged is that first role still is before second role, sets up the SCTP link with other base stations;
Further, as shown in Figure 6, this device can also comprise: first sending module 506 or first receiver module 507, wherein:
First sending module 506 is used for when judge module 501 is judged as first role, and the stream that is used to send the X2 link request information is chosen in the base station under utilizing from the stream of SCTP definition, sends the X2 link request information to other base stations;
Common stream determination module 502, the stream that also is used for said first sending module 506 is sent be as common stream, and stream that perhaps will 507 receptions of said first receiver module is as common stream.
Perhaps, as shown in Figure 7 further, this device can also comprise: second sending module 508 and second receiver module 509, wherein:
Based on same inventive concept, the present invention provides a kind of base station, comprises the said apparatus that the embodiment of the invention provides.Concrete structure repeats no more at this.
Set up method, device and the base station of X2 link between a kind of base station provided by the invention; Set up in the X2 link process in base station and other base stations; Utilize the logical role of this base station self; When this base station was first role, the stream that is used to send the X2 link request information that base station self is chosen utilized this common stream to accomplish the foundation of X2 link as common stream with other base stations; Otherwise, when this base station is second role, as common stream, and utilize this common stream to accomplish the foundation of X2 link the stream that is used to send the X2 link request information of other base station selection with other base stations.First role distinguishes through different link negotiation ranks with second role; It is thus clear that; The present invention is the choosing of common stream when realizing setting up the X2 link of the logical role through base station self; Solve the existing problem that the common stream that exists in the X2 link process is chosen conflict of between the base station, setting up, also improved the success rate of link establishment simultaneously.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. set up the method for X2 link between the base station, it is characterized in that, comprising:
When the X2 link was set up in first base station and second base station, the logical role of said first base station judges self was that first role still is second role, and said first role's link negotiation rank is greater than said second role's link negotiation rank;
If be judged as first role, the stream that is used to send the X2 link request information that self is chosen in then said first base station is as common stream;
If be judged as second role, then said first base station with the stream that is used to send the X2 link request information of said second base station selection as common stream;
Said first base station utilizes said common stream and said second base station to set up the X2 link.
2. the method for claim 1 is characterized in that, is that first role still is before second role in the logical role of said first base station judges self, also comprises:
SCTP SCTP link is set up in said first base station and said second base station;
Said first base station obtains the logical role of self.
3. method as claimed in claim 2 is characterized in that, if be judged as first role, the stream that is used to send the X2 link request information that self is chosen in then said first base station specifically comprises as common stream:
Said first base station judges is first role, and said first base station is chosen from the stream of said SCTP definition and is used to send said second base station transmission of flowing to of X2 link request information X2 link request information, and the stream that will choose is as said common stream;
If be judged as second role, then said first base station as common stream, specifically comprises the stream that is used to send the X2 link request information of said second base station selection:
Said first base station judges is second role, and said first base station receives the stream that is used for the X2 link request information that said second base station is chosen from the stream of said SCTP definition, and the stream that will receive is as said common stream.
4. method as claimed in claim 2 is characterized in that, after said SCTP link establishment success, and said first base station obtains before the logical role of self, perhaps after said first base station obtains the logical role of self, also comprises:
The stream that is used to send the X2 link request information is chosen in said first base station from the stream of said SCTP definition;
Said first base station utilizes selected said second base station that flows to send the X2 link request information, and receives the stream that is used for the X2 link request information that said second base station is chosen from the stream of said SCTP definition.
5. like each described method of claim 1-4, it is characterized in that said first role is a service end, said second role is a client; Perhaps said first role is a client, and said second role is a service end.
6. set up the device of X2 link between the base station, it is characterized in that, comprising:
Judge module is used for when the X2 link is set up in affiliated base station and other base stations, and the logical role of base station is that first role still is second role under judging, said first role's link negotiation rank is greater than said second role's link negotiation rank;
The common stream determination module is used for if judge module is judged as first role, then with the stream that is used to send the X2 link request information of affiliated base station selection as common stream; If judge module is judged as second role, then with the stream that is used to send the X2 link request information of said other base station selection as common stream;
First sets up module, and the X2 link is set up in said common stream and said other base stations of being used to utilize said judge module to confirm.
7. set up the device of X2 link between the base station as claimed in claim 6, it is characterized in that, also comprise:
Second sets up module, and the logical role that is used for base station under said judge module is judged is that first role still is before second role, sets up SCTP SCTP link with said other base stations;
Acquisition module, the logical role of base station under being used to obtain.
8. set up the device of X2 link between the base station as claimed in claim 7, it is characterized in that, also comprise: first sending module or first receiver module;
First sending module is used for when said judge module is judged as first role, and the stream that is used to send the X2 link request information is chosen in the base station under utilizing from the stream of said SCTP definition, sends the X2 link request information to said other base stations;
First receiver module is used for when said judge module is judged as second role, receives the stream that is used for the X2 link request information that said other base stations are chosen from the stream of said SCTP definition;
Said common stream determination module, the stream that also is used for said first sending module is sent be as common stream, and stream that perhaps will said first receiver module reception is as common stream.
9. set up the device of X2 link between the base station as claimed in claim 7, it is characterized in that, also comprise: second sending module and second receiver module;
Second sending module; Be used for said second set up module and set up the success of said SCTP link after; And said acquisition module obtains before the logical role of affiliated base station; Perhaps under said acquisition module obtains, after the logical role of base station, utilize affiliated base station from the stream of said SCTP definition, to choose the stream that is used to send the X2 link request information, send the X2 link request information to said other base stations;
Second receiver module; Be used for said second set up module and set up the success of said SCTP link after; And said acquisition module obtains before the logical role of affiliated base station; Perhaps, said acquisition module after the logical role of base station, receives the stream that is used for the X2 link request information that said other base stations are chosen from the stream of said SCTP definition under obtaining.
10. a base station is characterized in that, comprises like each described device among the claim 6-9.
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| CN2012101592445A CN102711281A (en) | 2012-05-22 | 2012-05-22 | Method and device for establishing X2 link between base stations and base stations |
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| CN2012101592445A CN102711281A (en) | 2012-05-22 | 2012-05-22 | Method and device for establishing X2 link between base stations and base stations |
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| CN2012101592445A Pending CN102711281A (en) | 2012-05-22 | 2012-05-22 | Method and device for establishing X2 link between base stations and base stations |
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| CN103384414A (en) * | 2013-06-28 | 2013-11-06 | 大唐移动通信设备有限公司 | X2 link establishing method and equipment |
| CN103491585A (en) * | 2013-09-22 | 2014-01-01 | 大唐移动通信设备有限公司 | Method and device for setting X2 links |
| CN103906117A (en) * | 2014-03-31 | 2014-07-02 | 大唐移动通信设备有限公司 | X2 link conflict resolution method and device |
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Application publication date: 20121003 |