CN106792930A - A kind of changing method and device of base-station connected interface link - Google Patents
A kind of changing method and device of base-station connected interface link Download PDFInfo
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- CN106792930A CN106792930A CN201510818867.2A CN201510818867A CN106792930A CN 106792930 A CN106792930 A CN 106792930A CN 201510818867 A CN201510818867 A CN 201510818867A CN 106792930 A CN106792930 A CN 106792930A
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- base station
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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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The invention provides a kind of changing method and device of base-station connected interface link, solve the problems, such as in identical MME Pool, X2 can occur between the base station of difference MME connections switch and a large amount of X2 switching occur to prepare failure.Changing method of the invention includes：When the connection for detecting the base station and mobile management entity MME changes or S1 links between the base station and MME are obstructed, base-station connected interface new information is generated, the base-station connected interface new information carries the list information of the current connected MME in the base station；The base-station connected interface new information is sent to the adjacent base station set up with the base station and be connected, base-station connected interface switching is carried out according to the base-station connected interface new information and the base station by the base-station connected interface instruction adjacent base station.The present invention efficiently solves the problems, such as that X2 can occur between the eNB of identical MME Pool, difference MME connection to be switched and a large amount of X2 switchings preparation failures occur.
Description
Technical field
The present invention relates to wireless technical field, particularly relate to a kind of base-station connected interface link changing method and
Device.
Background technology
When the user for being currently in use network service moves to another cell from a cell, or due to wireless biography
The reasons such as defeated service load quantity adjustment, activation manipulation maintenance, equipment fault, in order to ensure the continuity of communication
With the quality of service, with the communication link of former cell be transferred in new cell the user by system, this
Process is exactly to switch.The switching of LTE network mainly has switching in same eNB, X2 switchings and S1 to cut
Change, it is main here that X2 switchings are discussed.
Switching based on X2 is the switching between two evolved base station eNB, mobile management entity (Mobility
Management Entity, abbreviation MME) keep constant, its signaling process is divided into switching preparation process and cuts
Change execution flow two parts.In the switching preparation process stage, from source eNB to the target eNB connected with X2
Initiate handover request, target eNB replys Handover Request Acknowledge, and link conversion on being eated dishes without rice or wine is from source eNB
To target eNB；Flow stages are performed in switching, target eNB completes gateway (Serving by MME
GateWay, abbreviation SGW) renewal, so as to complete whole switching flow.
There is the phenomenon that substantial amounts of X2 switchings prepare failure in existing network, discovery of tracing it to its cause is when same
There are multiple MME, a website to be connected with one of MME when ging wrong in MME POOL, same to POOL
The X2 handover requests that source eNB sends under interior another MME will fail.But due to X2 in the prior art
Set up and the content of renewal does not include the content of MME, also just say when MME adjustment or the event of S1 links
Barrier, when base station can not connect with certain MME in POOL, does not inform neighboring station by X2 links, and then
Cause the MME of the UE connections for preparing switching in the cell-of-origin different from the MME that Target cell is connected and
During same MME pool, X2 handover requests and handoff failure still can be initiated, both influence performance of handoffs
Client perception is influenceed again.
The content of the invention
It is an object of the invention to provide a kind of changing method and device of base-station connected interface link, it is used to solve
X2 can occur certainly in identical MME Pool, between the base station of difference MME connections to switch and occur big
Amount X2 switchings prepare the problem of failure.
To achieve these goals, the invention provides a kind of changing method of base-station connected interface link, should
For base station, methods described includes：
The connection for detecting the base station and mobile management entity MME change or the base station with
When S1 links between MME are obstructed, base-station connected interface new information, the base-station connected interface are generated
New information carries the list information of the current connected MME in the base station；
The base-station connected interface new information is sent to the adjacent base station set up with the base station and be connected, by
Base-station connected interface indicates the adjacent base station to be entered with the base station according to the base-station connected interface new information
The base-station connected interface switching of row.
Wherein, it is described to be changed or institute in the connection for detecting the base station and mobile management entity MME
State S1 links between base station and MME it is obstructed when, generate base-station connected interface new information, including：
Changed or S1 between the base station and MME in the connection for detecting the base station and MME
When link is obstructed, base station configuration updating information is generated, the base station configuration updating information includes MME POOL
The global unique group identity GU-Group-ID of ID list elements；
Increase the row of the current connected MME in the base station in the IE extended fields of the GU-Group-ID
Table information, obtains the base-station connected interface new information.
Present invention also offers a kind of switching device of base-station connected interface link, base station is applied to, including：
Generation module, for being changed with the connection of mobile management entity MME detecting the base station
Or S1 links between the base station and MME it is obstructed when, generate base-station connected interface new information, it is described
Base-station connected interface new information carries the list information of the current connected MME in the base station；
Sending module, is connected for the base-station connected interface new information to be sent to be set up with the base station
Adjacent base station, indicate the adjacent base station to be updated according to the base-station connected interface by base-station connected interface and disappear
Breath carries out base-station connected interface switching with the base station.
Wherein, the generation module includes：
Generation unit, for changed in the connection for detecting the base station and MME or the base station with
When S1 links between MME are obstructed, base station configuration updating information, the base station configuration updating information are generated
Including the global unique group identity GU-Group-ID of MME POOL ID list elements；
Adding unit, for increasing the current institute in the base station in the IE extended fields of the GU-Group-ID
The list information of MME is connected, the base-station connected interface new information is obtained.
Present invention also offers a kind of changing method of base-station connected interface link, base station, the side are applied to
Method includes：
Obtain and the base-station connected interface new information that the adjacent base station being connected sends is set up with the base station, it is described
Base-station connected interface new information is that the adjacent base station is detected and sent out with the connection of mobile management entity MME
Generated when raw change or the obstructed S1 links between the adjacent base station and MME, and it is described base-station connected
Interface new information carries the list information of the current connected MME of the adjacent base station；
Base-station connected interface switching is carried out according to the base-station connected interface new information and the adjacent base station.
Wherein, it is described carried out with the adjacent base station according to the base-station connected interface new information it is base-station connected
Interface switches, including：
According to the list information of the presently described connection MME of the adjacent base station, judge that to be switched terminal is connected
Source MME whether there is in the list of the presently described connection MME of the adjacent base station；
If the source MME is present in the list of the presently described connection MME of the to be switched adjacent base station,
X2 handover requests are then initiated, otherwise, S1 handover requests is initiated.
Present invention also offers a kind of switching device of base-station connected interface link, base station is applied to, including：
Acquisition module, the base-station connected interface that the adjacent base station being connected sends is set up with the base station for obtaining
New information, the base-station connected interface new information is detected and mobile management entity for the adjacent base station
Generated when the connection of MME changes or the S1 links between the adjacent base station and MME are obstructed,
And the base-station connected interface new information carries the list letter of the current connected MME of the adjacent base station
Breath；
Handover module, for carrying out base station with the adjacent base station according to the base-station connected interface new information
Interconnection interface switches.
Wherein, the handover module includes：
Judging unit, for the list information according to the presently described connection MME of the adjacent base station, judges to treat
The source MME that switching terminal is connected whether there is in the list of the presently described connection MME of the adjacent base station
In；
Switch unit, if being present in the presently described connection of to be switched adjacent base station for the source MME
In the list of MME, then X2 handover requests are initiated, otherwise, initiate S1 handover requests.
The embodiment of the present invention has the advantages that：
The changing method of the base-station connected interface link of the embodiment of the present invention, is detecting the company of base station and MME
Connect and change or when the S1 links between base station and MME are obstructed, it is current connected that generation carries base station
The base-station connected interface new information of the list information of MME is simultaneously sent to the phase set up with the base station and be connected
Adjacent base station, by base-station connected interface indicate the adjacent base station according to the base-station connected interface new information with
The base station carries out base-station connected interface switching such that it is able to so that source is judged in base station before switching is initiated
X2 handover requests are initiated when MME is in the MME lists of targeted sites, X2 switchings is reduced and is prepared to lose
The phenomenon for losing, improves performance of handoffs.
Brief description of the drawings
Fig. 1 is the first workflow diagram of the changing method of the base-station connected interface link of the embodiment of the present invention；
Fig. 2 is the second workflow diagram of the changing method of the base-station connected interface link of the embodiment of the present invention；
Fig. 3 is the first structure schematic diagram of the switching device of the base-station connected interface link of the embodiment of the present invention；
Fig. 4 is the 3rd workflow diagram of the changing method of the base-station connected interface link of the embodiment of the present invention；
Fig. 5 is the 4th workflow diagram of the changing method of the base-station connected interface link of the embodiment of the present invention；
Fig. 6 is the second structural representation of the switching device of the base-station connected interface link of the embodiment of the present invention.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with tool
Body embodiment and accompanying drawing are described in detail.
A kind of changing method and device of base-station connected interface link are the embodiment of the invention provides, is solved
X2 can occur in identical MME Pool, between the base station of difference MME connections to switch and occur a large amount of
X2 switchings prepare the problem of failure.
Base-station connected interface in the embodiment of the present invention can be better understood from for the ease of those skilled in the art
The changing method of link, is specifically described below the problem and X2 update mechanisms of X2 switching presence in existing network.
(1) problem that X2 switchings are present
X2 switchings are that occur under the premise of MME is immovable, but existing network has substantial amounts of X2 switchings
Prepare the phenomenon of failure, discovery of tracing it to its cause is worked as multiple MME, one in same MME POOL
Website is connected when ging wrong with one of MME, is sent with source eNB under another MME in POOL
X2 handover requests will fail.It is described as follows：
It is assumed that cell-of-origin 186233-12 is switched to Target cell 670365-13 by X2, in X2 handover requests
When, the message content of carrying includes the MME that source eNB is connected, corresponding MME numberings (MME Code,
Abbreviation MMEC) content be D0, it is different with the MMEC that Target cell 670365-13 is belonged to.
Subsequent target eNodeB replys switching and prepares failure Handover Preparation Failure, the original of carrying
Because " Unkown MME code ", and X2 handover requests are repeatedly initiated in cell-of-origin, are X2 switchings
Prepare failure, S1 switchings can't be initiated.
Analysis understands according to more than, the website in current existing network in same MME POOL, if part
Website is obstructed with certain MME connecting link in MME POOL, then initiate X2 handover requests and occur generally
Forthright switching prepares failure, and handover request can be initiated once again at regular intervals, both influence to cut
It is transsexual again to influence client perception.
(2) update mechanism of X2
Explanation of the existing protocol to " eNB CONFIGURATION UPDATE " is the message for eNB
Config update process, the application layer updated by X2 interface between two eNB is configured, related to core net
To update the data be global unique group identity GU-Group-Id, correspond to MCC+MNC+MMEGI, i.e.,
MME POOL ID, that is to say, that do not include MMEC in the new information of X2.
Same to set up message in X2, i.e. X2 sets up request and X2 is set up in the message content of response,
Also simply there is the content of MME POOL ID.
Analysis more than, X2 sets up and the content of renewal does not include the content of MME, therefore works as
When MME changes, neighboring station is not informed by X2 links, caused as the MME of cell-of-origin connection
It is different and in same MME pool from the MME that Target cell is connected, still can initiate X2 switchings and ask
Ask and handoff failure.
In sum, X2 can occur between the eNB between identical MME Pool, difference MME connection
Switch and occur the phenomenon that a large amount of X2 switchings prepare failure.Difference MME in this same MME POOL
The reason for connecting same base station is probably failure, network variation etc., and this can cause network X2 performance of handoffs
Deterioration, extreme influence client network experience.
The existing X2 links update mechanism of existing network, eNB is passed through when application layer data changes
CONFIGURATION UPDATE messages update, and the content of renewal mainly includes：Serving cell matches somebody with somebody confidence
The increase of breath, it is deleted or modified, increases or deletes MME POOL ID lists, it is seen that update in X2 links
Signaling message in and not comprising MME mark, that is to say, that when MME adjustment or S1 link failures
When, when certain MME can not be connected in base station and POOL, periphery website can't be informed, and periphery website
Connect MME initiations X2 handover requests and will result in X2 handoff failures.If therefore can be to existing renewal
Mechanism is improved, and when S1 links break down obstructed, MME configurations are when changing, and this content is led to
Cross update mechanism and pass to peripheral base station, X2 switchings will be no longer initiated when so taking different MME, and then
Improve performance of handoffs.
First embodiment：
As shown in figure 1, the changing method of the base-station connected interface link of the embodiment of the present invention, is applied to base station,
Methods described, including：
Step 11：Changed or S1 between base station and MME in the connection for detecting base station and MME
When link is obstructed, base-station connected interface new information is generated, base-station connected interface new information carries base station
The list information of current connected MME.
Here, base-station connected interface specifically refers to X2 interface, when base station detects the MME set with base station
Link information changes or due to failure and other reasons, the link of base station certain MME interior with MME POOL
When obstructed, then trigger into base-station connected interface new information.Due to being connected by X2 interface between existing base station
Connect, therefore above-mentioned base-station connected interface new information is X2 new informations.
Step 12：Base-station connected interface new information is sent to the adjacent base station set up with base station and be connected, by
Base-station connected interface instruction adjacent base station carries out base according to the base-station connected interface new information with the base station
Interconnection interface of standing switches.
In a particular embodiment of the present invention, the adjacent base station that being set up with the base station has X2 to be connected stores its X2
New information, the base station is also while store the X2 new informations of its adjacent base station transmission in addition.Due to the present invention
Base station stored in embodiment has adjacent base station to connect the list information of MME, therefore, it can preparing to cut
Before changing, whether the source MME being connected with to be switched terminal is judged in the MME lists of target neighboring base stations,
If being present in the MME lists of target neighboring base stations, X2 handover requests are initiated, otherwise initiate S1 and cut
Request is changed, the probability of X2 handoff failures is reduced, Consumer's Experience is improve.
Second embodiment：
As shown in Fig. 2 the changing method of the base-station connected interface link of the embodiment of the present invention, is applied to base station,
Methods described includes：
Step 21：Changed or the base station and MME with the connection of MME the base station is detected
Between S1 links it is obstructed when, generate base station configuration updating information, the base station configuration updating information includes
The global unique group identity GU-Group-ID of MME POOL ID list elements.
Specifically, describing X2 more new technological process eNB Configuration in agreement 3GPP TS36.423
Increase in Update, its more new content for including or the element deleted in MME POOL ID lists are
There is an IE for extension in GU-Group-ID, and GU-Group-ID.
Step 22：Increase the base station in the IE extended fields of the GU-Group-ID current connected
The list information of MME, obtains the base-station connected interface new information.
Specifically, by increasing the MME lists that the content of extension IE is connected by current eNB, so that
Reach the purpose that the MME lists that this base station of signaling update is connected are updated using X2.Extend the content of IE
Can be defined as follows：
GU-Group-ID-ExtIEs X2AP-PROTOCOL-EXTENSION::=
mME-CodeList::=SEQUENCE (SIZE (1..maxMmecsPerPool)) OF MME-Code,
}
Wherein, being defined as below in MME-code such as agreement 3GPP TS36.423, and in each POOL
Maximum MME numbers are defined by agreement 3GPP TS 23.003, and maxMmecsPerPool is 256.
MME-Code::=OCTET STRING (SIZE (1)).
Step 23：The base-station connected interface new information is sent to and sets up the adjacent of connection with the base station
Base station, the adjacent base station is indicated according to the base-station connected interface new information and institute by base-station connected interface
Stating base station carries out base-station connected interface switching.
In a particular embodiment of the present invention, the base station that the adjacent eNB storage triggerings X2 for having X2 to associate updates
MME list informations.The purpose of this step be when neighboring station initiate switching before can first check source MME whether with
Target eNB has connection.If there is connection, X2 handover requests are initiated.
The changing method of the embodiment of the present invention, using the eNB Configuration Update signalings of protocol specification
Extension IE in middle MME POOL ID list elements GU-Group-ID fills MME lists
(mME-CodeList), so as to improve the content that X2 updates signaling (eNB Configuration Update).
When base station judges that the MME lists of local terminal connection change, then trigger because of the X2 that MME lists change
Signaling is updated, initiating eNB Configuration Update to periphery X2 neighboring stations updates the connection of this base station
MME lists.So that base station can be located at the MME row of targeted sites connection source MME is judged
X2 handover requests are just initiated during table, is prevented between the eNB of identical MME Pool, difference MME connection
X2 can occur and switch and occur the phenomenon that a large amount of X2 switchings prepare failure.
3rd embodiment：
As shown in figure 3, the embodiment of the present invention additionally provides a kind of switching device of base-station connected interface link,
Base station is applied to, including：
Generation module 31, for changing with the connection of mobile management entity MME detecting the base station
When change or the S1 links between the base station and MME are obstructed, base-station connected interface new information, institute are generated
State the list information that base-station connected interface new information carries the current connected MME in the base station；
Sending module 32, connects for the base-station connected interface new information to be sent to be set up with the base station
The adjacent base station for connecing, indicates the adjacent base station to be updated according to the base-station connected interface by base-station connected interface
Message carries out base-station connected interface switching with the base station.
Further, the generation module 31 includes：
Generation unit 311, for being changed or the base station in the connection for detecting the base station and MME
When S1 links between MME are obstructed, base station configuration updating information is generated, the base station configuration updating disappears
Breath includes the global unique group identity GU-Group-ID of MME POOL ID list elements；
Adding unit 312, works as increasing the base station in the IE extended fields of the GU-Group-ID
The list information of preceding connected MME, obtains the base-station connected interface new information.
It should be noted that the device is device corresponding with above method embodiment, above method embodiment
In all implementations suitable for the embodiment of the device, can also reach identical technique effect.
Fourth embodiment：
As shown in figure 4, the embodiment of the present invention additionally provides a kind of changing method of base-station connected interface link,
Base station is applied to, methods described includes：
Step 41：Obtain and the base-station connected interface new information that the adjacent base station being connected sends set up with base station,
Base-station connected interface new information changes for adjacent base station is detected with the connection of mobile management entity MME
What change or the S1 links between adjacent base station and MME were generated when obstructed, and base-station connected interface new information
Carry the list information of the current connected MME of adjacent base station.
Step 42：Base-station connected connecing is carried out with the adjacent base station according to the base-station connected interface new information
Mouth switching.
Further, the step 42 includes：
According to the list information of the presently described connection MME of the adjacent base station, judge that to be switched terminal is connected
Source MME whether there is in the list of the presently described connection MME of the adjacent base station.
If the source MME is present in the list of the presently described connection MME of the to be switched adjacent base station,
X2 handover requests are then initiated, otherwise, S1 handover requests is initiated.
In the embodiment of the present invention, the MME of the base station that the adjacent base station storage triggering X2 for having X2 to associate updates is arranged
Table information, can first check whether source MME is connected with target eNB before neighboring station initiates switching.If having
Connection, then initiate X2 handover requests, successfully solves UE in the lte networks because of the MME of eNB connections
The probability X2 handoff failures problem that list changes and causes, with innovative value higher and practical valency
Value, in addition, the range of application of the embodiment of the present invention is extremely wide, can apply to all of TDD and FDD systems
The LTE network of formula.
5th embodiment：
As shown in figure 5, the changing method of the base-station connected interface link of the embodiment of the present invention, including：
Step 51：Base station judges and whether the connection of MME changes or the S1 between base station and MME
Whether link is obstructed.
Step 52：If being changed with the connection of MME or the S1 links between MME being obstructed, give birth to
Into the X2 new informations of the list information for carrying the current connected MME in the base station.
Step 53：There is the adjacent base station that X2 is connected to store its MME list information with the base station.
Step 54：When UE prepares to switch, judge the source MME being connected with to be switched UE whether in target
In the MME lists of website.
Step 55：If in lists, initiating X2 switchings.
Step 56：If not in MME lists, initiating S1 switchings.
In the embodiment of the present invention base station judge source MME be located at targeted sites connection MME lists when
Initiate X2 handover requests, prevent identical MME Pool, difference MME connect eNB between can occur
X2 switches and occurs the phenomenon that a large amount of X2 switchings prepare failure, improves performance of handoffs, improves user
Experience.
Sixth embodiment：
As shown in fig. 6, the embodiment of the present invention additionally provides a kind of switching device of base-station connected interface link,
Base station is applied to, including：
Acquisition module 61, base-station connected the connecing of the adjacent base station being connected transmission is set up for obtaining with the base station
Oral replacement message, the base-station connected interface new information is detected and mobile management reality for the adjacent base station
Generated when the connection of body MME changes or the S1 links between the adjacent base station and MME are obstructed,
And the base-station connected interface new information carries the list letter of the current connected MME of the adjacent base station
Breath；
Handover module 62, for carrying out base with the adjacent base station according to the base-station connected interface new information
Interconnection interface of standing switches.
Further, the handover module 62 includes：
Judging unit 621, for the list information according to the presently described connection MME of the adjacent base station, sentences
The source MME that to be switched terminal of breaking is connected whether there is in the presently described connection MME's of the adjacent base station
In list；
Switch unit 622, if being present in the presently described company of to be switched adjacent base station for the source MME
Connect in the list of MME, then initiate X2 handover requests, otherwise, initiate S1 handover requests.
It should be noted that the device is device corresponding with above method embodiment, above method embodiment
In all implementations suitable for the embodiment of the device, can also reach identical technique effect.
The changing method and device of the base-station connected interface link of the embodiment of the present invention, detect base station with
When the connection of MME changes or the S1 links between base station and MME are obstructed, generation carries base station
The base-station connected interface new information of the list information of current connected MME and being sent to is built with the base station
The adjacent base station of vertical connection, the adjacent base station is indicated according to the base-station connected interface by base-station connected interface
New information carries out base-station connected interface switching with the base station such that it is able to so that base station is before switching is initiated,
X2 handover requests are initiated when judging that source MME is in the MME lists of targeted sites, X2 is reduced and is cut
The phenomenon for preparing failure is changed, performance of handoffs is improved.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in this hair
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in this hair
Within bright protection domain.
Claims (8)
1. a kind of changing method of base-station connected interface link, is applied to base station, it is characterised in that the side
Method includes：
The connection for detecting the base station and mobile management entity MME change or the base station with
When S1 links between MME are obstructed, base-station connected interface new information, the base-station connected interface are generated
New information carries the list information of the current connected MME in the base station；
The base-station connected interface new information is sent to the adjacent base station set up with the base station and be connected, by
Base-station connected interface indicates the adjacent base station to be entered with the base station according to the base-station connected interface new information
The base-station connected interface switching of row.
2. the changing method of base-station connected interface link according to claim 1, it is characterised in that institute
State the connection for detecting the base station and mobile management entity MME change or the base station with
When S1 links between MME are obstructed, base-station connected interface new information is generated, including：
Changed or S1 between the base station and MME in the connection for detecting the base station and MME
When link is obstructed, base station configuration updating information is generated, the base station configuration updating information includes MME POOL
The global unique group identity GU-Group-ID of ID list elements；
Increase the row of the current connected MME in the base station in the IE extended fields of the GU-Group-ID
Table information, obtains the base-station connected interface new information.
3. a kind of switching device of base-station connected interface link, is applied to base station, it is characterised in that including：
Generation module, for being changed with the connection of mobile management entity MME detecting the base station
Or S1 links between the base station and MME it is obstructed when, generate base-station connected interface new information, it is described
Base-station connected interface new information carries the list information of the current connected MME in the base station；
Sending module, is connected for the base-station connected interface new information to be sent to be set up with the base station
Adjacent base station, indicate the adjacent base station to be updated according to the base-station connected interface by base-station connected interface and disappear
Breath carries out base-station connected interface switching with the base station.
4. the switching device of base-station connected interface link according to claim 3, it is characterised in that institute
Stating generation module includes：
Generation unit, for changed in the connection for detecting the base station and MME or the base station with
When S1 links between MME are obstructed, base station configuration updating information, the base station configuration updating information are generated
Including the global unique group identity GU-Group-ID of MME POOL ID list elements；
Adding unit, for increasing the current institute in the base station in the IE extended fields of the GU-Group-ID
The list information of MME is connected, the base-station connected interface new information is obtained.
5. a kind of changing method of base-station connected interface link, is applied to base station, it is characterised in that the side
Method includes：
Obtain and the base-station connected interface new information that the adjacent base station being connected sends is set up with the base station, it is described
Base-station connected interface new information is that the adjacent base station is detected and sent out with the connection of mobile management entity MME
Generated when raw change or the obstructed S1 links between the adjacent base station and MME, and it is described base-station connected
Interface new information carries the list information of the current connected MME of the adjacent base station；
Base-station connected interface switching is carried out according to the base-station connected interface new information and the adjacent base station.
6. the changing method of base-station connected interface link according to claim 5, it is characterised in that institute
State carries out base-station connected interface switching according to the base-station connected interface new information and the adjacent base station, bag
Include：
According to the list information of the presently described connection MME of the adjacent base station, judge that to be switched terminal is connected
Source MME whether there is in the list of the presently described connection MME of the adjacent base station；
If the source MME is present in the list of the presently described connection MME of the to be switched adjacent base station,
X2 handover requests are then initiated, otherwise, S1 handover requests is initiated.
7. a kind of switching device of base-station connected interface link, is applied to base station, it is characterised in that including：
Acquisition module, the base-station connected interface that the adjacent base station being connected sends is set up with the base station for obtaining
New information, the base-station connected interface new information is detected and mobile management entity for the adjacent base station
Generated when the connection of MME changes or the S1 links between the adjacent base station and MME are obstructed,
And the base-station connected interface new information carries the list letter of the current connected MME of the adjacent base station
Breath；
Handover module, for carrying out base station with the adjacent base station according to the base-station connected interface new information
Interconnection interface switches.
8. the switching device of base-station connected interface link according to claim 7, it is characterised in that institute
Stating handover module includes：
Judging unit, for the list information according to the presently described connection MME of the adjacent base station, judges to treat
The source MME that switching terminal is connected whether there is in the list of the presently described connection MME of the adjacent base station
In；
Switch unit, if being present in the presently described connection of to be switched adjacent base station for the source MME
In the list of MME, then X2 handover requests are initiated, otherwise, initiate S1 handover requests.
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| CN201510818867.2A CN106792930A (en) | 2015-11-20 | 2015-11-20 | A kind of changing method and device of base-station connected interface link |
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| CN201510818867.2A CN106792930A (en) | 2015-11-20 | 2015-11-20 | A kind of changing method and device of base-station connected interface link |
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| CN109257778A (en) * | 2017-07-14 | 2019-01-22 | 大唐移动通信设备有限公司 | A kind of cell switching method and device |
| CN111356248A (en) * | 2018-12-20 | 2020-06-30 | 大唐移动通信设备有限公司 | Method and device for establishing connection between access network devices |
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