CN101877871A - Network self-organization method and evolution base station - Google Patents
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Abstract
The invention discloses a network self-organization method and an evolution base station eNB. The method comprises the following steps that: when the eNB is started, the state of a neighborhood relation table in the eNB is set to be pre-valid; the eNB sets up a request message through X2 to send the neighborhood relation table thereof to a neighboring eNB and receive the neighborhood relation table of the neighboring eNB, which is returned by the neighboring eNB; the eNB sets the state of the neighborhood relation table between the eNB and the neighboring eNB to be pre-valid according to the neighborhood relation table of the neighboring eNB; and the eNB evaluates the neighborhood relation represented by the neighborhood relation table in the pre-valid state and changes the pre-valid state of the neighborhood relation table to be valid or invalid according to the evaluation result. The technical scheme of the invention optimizes neighboring configuration, so that switch judgment can use precise neighboring information and a switch success rate of a network is improved.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of network self-organization method and a kind of evolution base station eNB.
Background technology
Long Term Evolution (LTE, Long Term Evolution) network is the network of a flattening.Fig. 1 is the existing LTE schematic network structure.As shown in Figure 1, the LTE network is by the UMTS Terrestrial radio access network (E-UTRAN) and the evolution packet switching center (EPC of evolution, Evolved Packet Core) forms, it compares maximum variation with 3G technology, the wireless access mesh portions has been removed radio network controller (RNC, Radio NetworkController), reduced network delay.EPC comprises mobile management entity (MME) and Service Gateway (S-GW).E-UTRAN comprises the set of the evolution base station (eNB) that links to each other by S 1 interface with EPC, links to each other by X2 interface between the eNB, and each ENB comprises a plurality of sub-districts.
At present, because 2G, 3G and LTE will coexist in for a long time, the complexity that system operation is safeguarded will increase greatly, adopting conventional wireless network planning, optimizing under the working method, the network parameter of flood tide almost can't be by manually coming complete operation, and the network planning, optimization and operation cost are more and more higher.Therefore operator initiates self-optimizing network (SON, Self-Organizing Network) technology, wishes to reduce operation cost by the SON technology, improves operating efficiency, network performance and stability.
Existing SON technology has following four big functions:
Self-configuring: eNB promptly inserts promptly to go into, automatic software installation, automatically dispose wireless parameter and transmission parameter, detect automatically, the automatic management of syntople etc.; Self-configuring can reduce networking and open the process that middle engineer repeats manually to prepare parameter, reduces networking difficulty and cost;
Self-optimizing: according to the operation conditions of the network equipment, self adaptation is adjusted parameter, optimizes network performance.Traditional network optimization can be divided into two aspects, and one is wireless parameter optimization, as transmitting power, handoff threshold, sub-district individual character skew etc.; It two is machinery and physics optimization, as antenna direction with have a down dip, aerial position, benefit point etc.Self-optimizing can only partly replace traditional network optimization.Self-optimizing comprise cover with capacity optimization, energy-conservation, PCI self-configuring, mobile robustness optimization, moving load balance optimizing, RACH optimization, Automatic Neighboring Relation, sub-district in interference coordination etc.
Selfreparing: find fault by automatic alarm association, in time isolate and recover.
Self planning: the dynamically planning of re-computation network automatically, website planning during as System Expansion and wireless parameter configuration.
But present LTE SON technology is perfect not enough, the irrational situation of neighbor cell configuration often occurs, causes handover success rate low, has wasted Internet resources, has also increased network load simultaneously.
Summary of the invention
The invention provides a kind of network self-organization method, this method has been optimized neighbor cell configuration, makes switch decision can utilize neighboring BS information accurately, has improved the handover success rate of network.
The present invention also provides a kind of eNB, and this eNB can optimize neighbor cell configuration, makes switch decision can utilize neighboring BS information accurately, has improved the handover success rate of network.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of network self-organization method, dispose neighborhood region correlation chart on the evolution base station eNB, this neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, the state of all neighboring BS relationship list items is invalid when initial, and this method comprises:
When described eNB started, the state of the neighboring BS relationship list item in this eNB was set to pre-effective;
Described eNB sets up request message by X2 self neighborhood region correlation chart is sent to adjacent eNB, and receives the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns;
Described eNB is according to the neighborhood region correlation chart of adjacent eNB, and the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective;
Described eNB is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to state, is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with this state.
The invention also discloses a kind of evolution base station eNB, this eNB comprises: memory module and self-optimizing module, wherein,
Memory module is used to preserve neighborhood region correlation chart; This neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, when initial the state of all neighboring BS relationship list items be invalid;
The self-optimizing module, when being used for this eNB startup, the state of the neighboring BS relationship list item in this eNB is set to pre-effective; Be used for setting up request message the neighborhood region correlation chart of this eNB is sent to adjacent eNB, and receive the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns by X2; Be used for the neighborhood region correlation chart according to adjacent eNB, the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective; Being used for state is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed, and is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with this state.
By as seen above-mentioned, this neighborhood region correlation chart that on eNB, disposes in advance of the present invention, when eNB starts, the state of the neighboring BS relationship list item in this eNB is set to pre-effective, set up request message by X2 self neighborhood region correlation chart is sent to adjacent eNB, and receive the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns, neighborhood region correlation chart according to adjacent eNB, the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective, then, to state is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed, is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid technical scheme according to assessment result with this state, optimize neighbor cell configuration, made switch decision can utilize neighboring BS information accurately, improved the handover success rate of network.
Description of drawings
Fig. 1 is the existing LTE schematic network structure;
Fig. 2 is a kind of network self-organization method of the embodiment of the invention;
The signaling process schematic diagram of the self-organization method when Fig. 3 is embodiment of the invention eNB1 startup;
Fig. 4 is the signaling process schematic diagram of the self-organization method of the configuration parameter of the sub-district under the embodiment of the invention eNB1 when changing;
Fig. 5 is the signaling process schematic diagram of the self-organization method of the embodiment of the invention when working as eNB1 and having new sub-district to set up;
Fig. 6 is the signaling process figure of the self-organization method of the sub-district of embodiment of the invention eNB1 when deleted;
Fig. 7 is the composition structural representation of a kind of eNB of the embodiment of the invention.
Embodiment
In the present invention: at first according to factors such as networking planning, subdistrict position, special requirements, on eNB in the pre-configured eNB and the neighborhood region correlation chart between eNB, but before the sub-district is set up, relevant neighborhood region correlation chart is invalid, and relevant adjacent sub-district is connected with wireless network resource (RRC) in the system information that sends and does not comprise relevant neighboring BS relationship list item in the reconfiguration message.After eNB startup, sub-district are set up, in order to satisfy sub-district gravity treatment and the switching of before the eNB screening, carrying out, it is pre-effective that this eNB is provided with the relevant neighboring BS relationship list item in this sub-district with adjacent eNB, and is connected with RRC in the system information, the changing system information message that send and comprises neighborhood region correlation chart in the reconfiguration message, notice UE startup is to the periodic measurement of this sub-district.ENB is follow-up will to be screened by certain rule, to determine that the newly-built sub-district of configuration is that adjacent sub-district is whether suitable and whether other sub-districts are suitable as the adjacent area of this newly-built sub-district, if it is suitable, the relevant neighboring BS relationship list item effect of making a living then is set, if it is improper, it is invalid that relevant neighborhood region correlation chart then is set, and is connected the neighboring BS relationship list item that does not comprise related cell in the reconfiguration message with RRC in the changing system information message that sends.
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with specific embodiment.
Fig. 2 is a kind of network self-organization method of the embodiment of the invention.Dispose neighborhood region correlation chart on the evolution base station eNB, this neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, the state of all neighboring BS relationship list items is invalid when initial, and then as shown in Figure 2, this method comprises:
Self-organization method when flow process shown in Figure 2 has been described the eNB startup and set up the sub-district.There is under the eNB new sub-district to set up in addition again, perhaps has the sub-district deleted, when the configuration parameter of setting up the sub-district again or changes, all need to carry out corresponding self-optimizing and handle.
Below further divide the self-organization method of scene description LTE network provided by the invention.Here be that adjacent base station is an example with eNB1 and eNB2, two adjacent sub-districts are arranged under the eNB1, be respectively sub-district 1 and sub-district 2, two adjacent sub-districts are also arranged under the eNB2, be respectively sub-district 3 and sub-district 4, and the sub-district 1 of eNB1 and adjacent with the sub-district 3 of eNB2.It is as shown in table 1 that then eNB1 goes up pre-configured neighborhood region correlation chart:
| List item 1 | Sub-district 1 and sub-district 2 |
| List item 2 | Sub-district 1 and sub-district 3 |
Table 1
In table 1, list item 1 is the neighboring BS relationship list item in the eNB1, and list item 2 is the neighboring BS relationship list items between eNB1 and the eNB2.
The last pre-configured neighborhood region correlation chart of eNB2 is as shown in table 2:
| List item 1 | Sub-district 3 and sub-district 4 |
| List item 2 | Sub-district 1 and sub-district 3 |
Table 2
In table 2, list item 1 is the neighboring BS relationship list item in the eNB2, and list item 2 is the neighboring BS relationship list items between eNB2 and the eNB1.
1, eNB1 starts
The signaling process schematic diagram of the self-organization method when Fig. 3 is embodiment of the invention eNB1 startup.ENB2 starts, and then as shown in Figure 3, the signaling process when eNB1 starts may further comprise the steps:
Step 301, eNB1 starts, and sets up sub-district 1 and sub-district 2, and then eNB1 is set to the neighboring BS relationship list item in this eNB (i.e. list item in the table 1 1) pre-effective, and comprises neighboring BS relationship list item (i.e. list item in the table 1 1) in this eNB in the system information that sends.
Step 302, eNB1 is notified to adjacent eNB2 by X2 foundation request (X2SETUPREQUEST) message of X2 interface with the neighborhood region correlation chart in this eNB (i.e. table 1).
Step 303, eNB2 receives after X2 sets up request message, according to the configuration information and the neighborhood region correlation chart of wherein content update self.
In this step, configuration information comprises: Tracking Area Code (TAC, Tracking AreaCode), frequency (EARFCN) and transmission bandwidth etc.ENB2 is set to the list item in the table 22 pre-effective, and before because sub-district 1 does not have foundation, so the state of this list item 2 is invalid.
Step 304, eNB2 replys the X2 request of setting up comprise self configuration information and neighborhood region correlation chart to eNB1 and confirms (X2SETUP REQUEST ACKNOWLEDGE) message.
Step 305, eNB2 carries out self-optimizing to be handled, the screening adjacent area.Be specially: eNB2 is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to the state in self adjacent area state table, is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with state.
Step 306, eNB1 receives after X2 sets up the request acknowledge message, according to the configuration information and the neighborhood region correlation chart of wherein content update self.
In this step, eNB1 is set to the list item 2 in self neighborhood region correlation chart pre-effective.
Step 307, eNB1 carries out self-optimizing to be handled, the screening adjacent area.Be specially: eNB1 is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to the state in self adjacent area state table, is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with state.
In this step, eNB1 can adopt prior art that the relevant represented neighboring BS relationship of neighboring BS relationship list item is assessed, perhaps eNB1 also can be in the following way, and: eNB1 notifies that the UE in the sub-district carries out periodic measurement to the position of self and the signal strength signal intensity of sub-district, place under this eNB, and for example eNB1 can connect reconfiguration message notice UE by RRC; Then, each cell signal strength that measurement report reflected that eNB1 periodically reports according to each UE, UE positional information and in conjunction with cell load information, to state is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed, if it is suitable, the relevant neighboring BS relationship list item effect of making a living then is set, if be not suitable for, it is invalid that relevant neighboring BS relationship list item then is set, and is connected with RRC in the changing system information message that resends and does not comprise this neighboring BS relationship list item in the reconfiguration message.
2, the configuration parameter of sub-district changes
Fig. 4 is the signaling process schematic diagram of the self-organization method of the configuration parameter of the sub-district under the embodiment of the invention eNB1 when changing.As shown in Figure 4, may further comprise the steps:
Step 401, the configuration parameter of certain sub-district under the eNB1 changes, and establishing here is that the configuration parameter of sub-district 1 changes.
Step 402, if when the configuration parameter that changes only relates to configuration parameter in the sub-district, described eNB1 upgrades the cell configuration parameter of self;
If be that the configuration parameter that changes in this step only relates to the configuration parameter in the sub-district 1, for example only relate to the relevant parameters of system information such as cell selecting information, then eNB 1 upgrades the configuration parameter of sub-district 1 according to the configuration parameter after changing.
Step 403, if the configuration parameter that changes relates to adjacent eNB2, eNB1 is by base station configuration updating (eNB CONFIGURATION UPDATE) message informing adjacent eNB 2.
In this step, the configuration parameter that relates to the adjacent area of adjacent eNB comprises: TAC, frequency, transmission bandwidth etc.
Step 404, eNB2 is according to the cell parameter configuration information of the information updating that is received self.
Step 405, after configuration information update was finished, eNB2 confirmed (eNB CONFIGURATION UPDATE ACKNOWLEDGE) message to the base station configuration updating that eNB1 returns.
3, there is new sub-district to set up
Fig. 5 is the signaling process schematic diagram of the self-organization method of the embodiment of the invention when working as eNB1 and having new sub-district to set up.As shown in Figure 2, may further comprise the steps:
Step 501, eNB1 has new sub-district to set up.
In this step, can set up new sub-district or set up new sub-district by Operation and Maintenance (OM) system by injecting integrated circuit board.
Step 502, eNB1 upgrades community configured information, and in order to satisfy sub-district gravity treatment and the switching of before the screening of eNB1 sub-district, carrying out, the state that eNB1 comprises the neighboring BS relationship list item of this newly-built sub-district is set to pre-effective, and is connected with RRC in the system information, the changing system information message that send and comprises this neighboring BS relationship list item in the reconfiguration message.
Step 503, eNB1 carries out self-optimizing, the screening adjacent area.
In this step, eNB1 assesses the represented neighboring BS relationship of neighboring BS relationship list item that comprises this newly-built sub-district, and the state that will comprise the neighboring BS relationship list item of this newly-built sub-district according to assessment result changes to and comes into force or invalid.Concrete assessment mode can for: eNB1 notice UE starts periodic measurement is carried out in the position of self and the signal strength signal intensity of sub-district, place, and wherein, RRC connects the reconfiguration message configuration UE periodic measurement is carried out in the sub-district; Afterwards, the signal strength signal intensity of eNB1 each sub-district that report is reflected according to the periodic measurement of UE, UE position and assess in conjunction with information such as cell loads.If suitable, then be set to come into force, if improper, it is invalid then to be set to, and is connected the neighboring BS relationship list item information that does not comprise related cell in the reallocation message with RRC in the changing system information message that resends.
Step 504, eNB1 sends base station configuration updating information by X2 interface to adjacent eNB2.
Step 505, eNB2 upgrades configuration information and the neighborhood region correlation chart of self.
Step 506, the base station configuration updating acknowledge message that eNB2 returns to eNB1
Step 507, eNB2 carries out self-optimizing, the screening adjacent area.ENB2 carries out self-optimizing, and the mode of screening adjacent area is identical with eNB1.
4, sub-district deletion
Fig. 6 is the signaling process figure of the self-organization method of the sub-district of embodiment of the invention eNB1 when deleted.As shown in Figure 6, may further comprise the steps:
Step 601, certain sub-district under the eNB1 is deleted, promptly by OM deletion sub-district or by extracting integrated circuit board deletion sub-district.
Step 602, eNB1 upgrades configuration information and the neighborhood region correlation chart of self.
In this step, it is invalid that the state that eNB1 comprises the neighboring BS relationship list item of deleted sub-district is set to, and triggers the changing system information message of adjacent area.
Step 603, eNB1 notifies adjacent eNB2 by base station configuration updating information.
Step 604, eNB2 upgrades configuration information and the neighborhood region correlation chart of self.
In this step, it is invalid that the state of the neighboring BS relationship list item that comprises deleted sub-district in eNB2 self neighborhood region correlation chart is set to, and triggers the changing system information message of adjacent area, and notice UE stops the measurement to this deleted sub-district.
Step 605, eNB2 returns the base station configuration updating acknowledge message to eNB1.
In the embodiment of the invention, when the load in the sub-district under the eNB1 surpassed default thresholding, it is invalid that the state that eNB1 also comprises the neighboring BS relationship list item of this sub-district is set to, and carry out the process after the above-mentioned steps 602; Perhaps, when continuous a plurality of cycles of the UE in the sub-district under the eNB1 show that in measurement report the signal of this sub-district is weaker than default thresholding, it is invalid that the state that eNB1 also comprises the neighboring BS relationship list item of this sub-district is set to, and carry out the process after the above-mentioned step 602.
Based on the foregoing description, next provide the composition structure of a kind of eNB among the present invention.
Fig. 7 is the composition structural representation of a kind of eNB of the embodiment of the invention.As shown in Figure 7, this eNB comprises: memory module 701 and self-optimizing module 702, wherein,
Memory module 701 is used to preserve neighborhood region correlation chart; This neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, when initial the state of all neighboring BS relationship list items be invalid;
Self-optimizing module 702, when being used for this eNB startup, the state of the neighboring BS relationship list item in this eNB is set to pre-effective; Be used for setting up request message the neighborhood region correlation chart of this eNB is sent to adjacent eNB, and receive the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns by X2; Be used for the neighborhood region correlation chart according to adjacent eNB, the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective; Being used for state is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed, and is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with this state.
Among the eNB as shown in Figure 7, described self-optimizing module 702, be used to notify that the UE in the sub-district carries out periodic measurement to the position of self and the signal strength signal intensity of sub-district, place under this eNB, each cell signal strength that measurement report reflected that periodically reports according to each UE, UE positional information and in conjunction with cell load information are that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to state.
Among the eNB as shown in Figure 7, described self-optimizing module 702 is further used for when described eNB has new sub-district to set up, and the state that comprises the neighboring BS relationship list item of this newly-built sub-district is set to pre-effective; The represented neighboring BS relationship of neighboring BS relationship list item that comprises this newly-built sub-district is assessed, and the state that will comprise the neighboring BS relationship list item of this newly-built sub-district according to assessment result changes to and comes into force or invalid; Send base station configuration updating information by X2 interface to adjacent eNB, upgrade the neighborhood region correlation chart of self, and receive the base station configuration updating acknowledge message that adjacent eNB is returned with the notice adjacent eNB.
Among the eNB as shown in Figure 7, when the cell configuration parameter of this eNB changed, described self-optimizing module 702 was further used for upgrading the cell configuration parameter of described eNB when the configuration parameter that changes only relates to configuration parameter in the sub-district; When the configuration parameter that changes relates to the adjacent eNB of described eNB,, and receive the base station configuration updating acknowledge message that adjacent eNB is returned behind the configuration information that upgrades self by base station configuration updating information notice adjacent eNB.
Among the eNB as shown in Figure 7, described self-optimizing module 702, be further used for sub-district under described eNB when deleted, it is invalid that the state that comprises the neighboring BS relationship list item of deleted sub-district is set to, perhaps, when the load in the sub-district under the described eNB surpasses default thresholding, it is invalid that the state that comprises the neighboring BS relationship list item of this sub-district is set to, perhaps, when continuous a plurality of cycles of the UE in the sub-district under the described eNB showed that in measurement report the signal of this sub-district is weaker than default thresholding, it is invalid that the state that comprises the neighboring BS relationship list item of this sub-district is set to; Then, by base station configuration updating information notice adjacent eNB, and receive the base station configuration updating acknowledge message that adjacent eNB is returned behind the neighborhood region correlation chart that upgrades self.
By as seen above-mentioned, the invention provides the technical scheme of the self-optimizing of a kind of LTE system, this scheme optimization neighbor cell configuration, make switch decision can utilize neighboring BS information accurately, improved the handover success rate of network, improved performance of handoffs.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (11)
1. network self-organization method, it is characterized in that, dispose neighborhood region correlation chart on the evolution base station eNB, this neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, the state of all neighboring BS relationship list items is invalid when initial, and this method comprises:
When described eNB started, the state of the neighboring BS relationship list item in this eNB was set to pre-effective;
Described eNB sets up request message by X2 self neighborhood region correlation chart is sent to adjacent eNB, and receives the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns;
Described eNB is according to the neighborhood region correlation chart of adjacent eNB, and the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective;
Described eNB is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to state, is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with this state.
2. method according to claim 1 is characterized in that, described eNB is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed and comprised to state:
Described eNB notifies that the UE in the sub-district carries out periodic measurement to the position of self and the signal strength signal intensity of sub-district, place under this eNB;
Each cell signal strength that measurement report reflected that described eNB periodically reports according to each UE, UE positional information and in conjunction with cell load information are that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to state.
3. method according to claim 1 is characterized in that, when described eNB had new sub-district to set up, this method further comprised:
The state that described eNB comprises the neighboring BS relationship list item of this newly-built sub-district is set to pre-effective;
Described eNB assesses the represented neighboring BS relationship of neighboring BS relationship list item that comprises this newly-built sub-district, and the state that will comprise the neighboring BS relationship list item of this newly-built sub-district according to assessment result changes to and comes into force or invalid;
Described eNB sends base station configuration updating information by X2 interface to adjacent eNB, upgrades the neighborhood region correlation chart of self with the notice adjacent eNB, and receives the base station configuration updating acknowledge message that adjacent eNB is returned.
4. method according to claim 1 is characterized in that, when the cell configuration parameter of described eNB changed, this method further comprised:
When the configuration parameter that changes only related to configuration parameter in the sub-district, described eNB upgraded the cell configuration parameter of self;
When the configuration parameter that changes related to adjacent eNB, described eNB notified adjacent eNB by base station configuration updating information, and received the base station configuration updating acknowledge message that adjacent eNB is returned behind the configuration information that upgrades self.
5. method according to claim 1 is characterized in that, this method further comprises:
When the sub-district under the described eNB was deleted, it is invalid that the state that described eNB comprises the neighboring BS relationship list item of deleted sub-district is set to; Perhaps, when the load in the sub-district under the described eNB surpassed default thresholding, it is invalid that the state that described eNB comprises the neighboring BS relationship list item of this sub-district is set to; Perhaps, when continuous a plurality of cycles of the UE in the sub-district under the described eNB showed that in measurement report the signal of this sub-district is weaker than default thresholding, it is invalid that the state that described eNB comprises the neighboring BS relationship list item of this sub-district is set to;
Then, described eNB notifies adjacent eNB by base station configuration updating information, and receives the base station configuration updating acknowledge message that adjacent eNB is returned behind the neighborhood region correlation chart that upgrades self.
6. according to each described method in the claim 1 to 5, it is characterized in that this method further comprises: for each neighboring BS relationship list item,
When the state of this neighboring BS relationship list item when being invalid, described eNB does not comprise this neighboring BS relationship list item in the system information, changing system information message and the radio resource control RRC connection reconfiguration message that send;
When the state of this neighboring BS relationship list item when being pre-effective, described eNB comprises this neighboring BS relationship list item in the system information, changing system information message and the radio resource control RRC connection reconfiguration message that send.
7. an evolution base station eNB is characterized in that, this eNB comprises: memory module and self-optimizing module, wherein,
Memory module is used to preserve neighborhood region correlation chart; This neighborhood region correlation chart comprises: neighboring BS relationship list item in this eNB and the neighboring BS relationship list item between this eNB and adjacent eNB, when initial the state of all neighboring BS relationship list items be invalid;
The self-optimizing module, when being used for this eNB startup, the state of the neighboring BS relationship list item in this eNB is set to pre-effective; Be used for setting up request message the neighborhood region correlation chart of this eNB is sent to adjacent eNB, and receive the neighborhood region correlation chart of this adjacent eNB that adjacent eNB returns by X2; Be used for the neighborhood region correlation chart according to adjacent eNB, the state of the neighboring BS relationship list item between this eNB and adjacent eNB is set to pre-effective; Being used for state is that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed, and is that the state of pre-effective neighboring BS relationship list item changes to and comes into force or invalid according to assessment result with this state.
8. eNB according to claim 7 is characterized in that,
Described self-optimizing module, be used to notify that the UE in the sub-district carries out periodic measurement to the position of self and the signal strength signal intensity of sub-district, place under this eNB, each cell signal strength that measurement report reflected that periodically reports according to each UE, UE positional information and in conjunction with cell load information are that the pre-effective represented neighboring BS relationship of neighboring BS relationship list item is assessed to state.
9. eNB according to claim 7 is characterized in that,
Described self-optimizing module is further used for when described eNB has new sub-district to set up, and the state that comprises the neighboring BS relationship list item of this newly-built sub-district is set to pre-effective; The represented neighboring BS relationship of neighboring BS relationship list item that comprises this newly-built sub-district is assessed, and the state that will comprise the neighboring BS relationship list item of this newly-built sub-district according to assessment result changes to and comes into force or invalid; Send base station configuration updating information by X2 interface to adjacent eNB, upgrade the neighborhood region correlation chart of self, and receive the base station configuration updating acknowledge message that adjacent eNB is returned with the notice adjacent eNB.
10. eNB according to claim 7 is characterized in that, when the cell configuration parameter of described eNB changes,
Described self-optimizing module is further used for upgrading the cell configuration parameter of described eNB when the configuration parameter that changes only relates to configuration parameter in the sub-district; When the configuration parameter that changes relates to the adjacent eNB of described eNB,, and receive the base station configuration updating acknowledge message that adjacent eNB is returned behind the configuration information that upgrades self by base station configuration updating information notice adjacent eNB.
11. eNB according to claim 7 is characterized in that,
Described self-optimizing module, be further used for sub-district under described eNB when deleted, it is invalid that the state that comprises the neighboring BS relationship list item of deleted sub-district is set to, perhaps, when the load in the sub-district under the described eNB surpasses default thresholding, it is invalid that the state that comprises the neighboring BS relationship list item of this sub-district is set to, perhaps, when continuous a plurality of cycles of the UE in the sub-district under the described eNB showed that in measurement report the signal of this sub-district is weaker than default thresholding, it is invalid that the state that comprises the neighboring BS relationship list item of this sub-district is set to; Then, by base station configuration updating information notice adjacent eNB, and receive the base station configuration updating acknowledge message that adjacent eNB is returned behind the neighborhood region correlation chart that upgrades self.
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| CN103002009A (en) * | 2012-09-29 | 2013-03-27 | 深圳市友讯达科技发展有限公司 | Method for building adjacent node relations in mesh network |
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| WO2019228396A1 (en) * | 2018-05-29 | 2019-12-05 | 维沃移动通信有限公司 | Switching method and apparatus, and storage medium |
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| CN113473503A (en) * | 2020-08-27 | 2021-10-01 | 几维通信技术(深圳)有限公司 | Network parameter optimization processing system based on NAS, terminal equipment and optimization method |
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