CN101998467A - Method and system for obtaining information of adjacent cell - Google Patents
Method and system for obtaining information of adjacent cell Download PDFInfo
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- CN101998467A CN101998467A CN2009101656869A CN200910165686A CN101998467A CN 101998467 A CN101998467 A CN 101998467A CN 2009101656869 A CN2009101656869 A CN 2009101656869A CN 200910165686 A CN200910165686 A CN 200910165686A CN 101998467 A CN101998467 A CN 101998467A
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- cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method and system for obtaining information of an adjacent cell. The method comprises the steps of: obtaining cell information of an adjacent cell adjacent to the current femtocell cell managed by the current femtocell, determining a target base station by the current femtocell according to the cell information of the adjacent cell or a network controller according to the cell information of the adjacent cell, sent by the current femtocell, and sending the cell information of the current femtocell cell to the target base station by the network controller. According to the method, the information of the adjacent cell can be configured immediately for the base station, thus the loss of electric quantity to UE, which is brought by reporting to the adjacent cell by the UE, is reduced, and the measurement efficiency is improved.
Description
Technical field
The present invention relates to the digital mobile communication technical field, be specifically related to obtain in the Home eNodeB communication system method and system of adjacent district information.
Background technology
(Home NodeB is called for short HNB in the 3G system to Home eNodeB; In LTE (Long TermEvolution) system, be called Home eNodeB, be called for short HeNB) be a kind of small base station that is installed in user family the inside or Administrative Area, network configuration is as shown in Figure 1.
Wherein security gateway (Security Gateway) effect is the network service of setting up safety; Femto gateway (H (e) NB GW) is in order in order to reduce the influence of core net (Core Netswork, be called for short CN) to be introduced, and main effect is to be that Home eNodeB connects and the control service.The Home eNodeB network management system is finished the authentication of Home eNodeB, functions such as various configuration parameters is provided for Home eNodeB.In the LTE family base station system, femto gateway can not exist yet, and promptly Home eNodeB is directly connected to core net.
Switching is significant process in the mobile communication system, is example with the LTE system, and the initiation of handoff procedure specifically comprises following step:
(1) UE is done measurement control configuration, comprise the abutting subdistrict frequency in the measurement control messages, also might comprise sub-district Physical Cell Identifier tabulation;
Above-mentioned abutting subdistrict frequency and Physical Cell Identifier tabulation all are to confirm according to base station configuration.
(2) UE reporting measurement reports comprises the measurement result of abutting subdistrict: Physical Cell Identifier, signal quality parameter also may comprise the sub-district global information (according to the configuration of network side) of abutting subdistrict;
(3) base station (is base station controller to the 3G system) according to measurement report, and the local adjacency cell configuration does switch decision, determines the Target cell that switches.
(4) position relation and the network configuration according to Target cell and cell-of-origin directly triggers the switching set-up procedure to the base station or the core net at Target cell place.
In step (1), the base station is to the measurement control configuration of UE, and the frequency of an allocating and measuring Target cell, UE also can be reporting district informations under this frequency.Further, if configured in advance good abutting subdistrict in base station comprises the Physical Cell Identifier of known sub-district in measuring control messages, can accelerate cell measurement speed.
In step (2), UE reporting subdistrict global information needs the base station to do particular measurement control configuration, and UE reads abutting subdistrict from the system message of abutting subdistrict sub-district global information expends time in relatively long.
From above process analysis procedure analysis,, improve switching efficiency for the base station configuration adjacent district information can effectively reduce the UE Measuring Time.For macro base station, the position of base station and opening time relative fixed, so the network planning finish after the syntople of base station determined, can the manual maintenance neighbor cell configuration.And after enabling Home eNodeB, Home eNodeB is a housed device, and its geographical position and start-up time all are uncertain, thus macro base station or Home eNodeB all can't manual maintenance in abutting connection with the configuration of home base station cells.There is same problem in the 3G system, and in the 3G system, ordinary circumstance UE only reports radio network controller (RNC) to measure the sub-district that comprises in the control, can automatic scan, so the configuration adjacent district information is more important to the 3G system.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and system of obtaining adjacent district information, can be the base station configuration neighboring BS information in time, reduces because the loss to the UE electric weight that reporting neighboring cell information is brought.
For solving the problems of the technologies described above, the invention provides a kind of method of obtaining adjacent district information, comprising:
Current Home eNodeB obtains the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration, the cell information of the described abutting subdistrict that current Home eNodeB sends according to current Home eNodeB according to the cell information of described abutting subdistrict or network controller, determine the purpose base station, the cell information of current home base station cells is sent to described purpose base station by network controller.
Further, described current Home eNodeB one or both in the following ways obtain the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration: the adjacent abutting subdistrict of current home base station cells of scanning and its administration when described current Home eNodeB powers on, obtain the cell information of described abutting subdistrict; Described current Home eNodeB obtains the cell information of described abutting subdistrict according to the measurement report that is arranged in the terminal to report of current home base station cells.
Further, after described current Home eNodeB obtains the cell information of abutting subdistrict according to the measurement report of terminal to report, judge according to the cell information of described abutting subdistrict whether described abutting subdistrict whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
Further, after the cell information of current home base station cells is received in described purpose base station, judge according to the cell information of current home base station cells whether described current home base station cells whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
Further, for the LTE system, described cell information comprises Physical Cell Identifier (PCI), sub-district overall identification, tracking area sign indicating number; For the 3G system, cell information comprises basic scrambler (PSC), sub-district overall identification, Location Area Code, radio network controller identifier (RNC ID).
Further, when described network controller is femto gateway, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described femto gateway judges when described abutting subdistrict is macrocell, searches macro base station under it according to the cell information of described macrocell, and the cell information of current area is directly sent to described macro base station; Described femto gateway is judged when described abutting subdistrict is home base station cells, search Home eNodeB under it according to the cell information of described home base station cells, the cell information of current area directly or by other femto gateways is sent to described Home eNodeB; Described femto gateway judges that described abutting subdistrict is a home base station cells and when directly being connected to core net, search Home eNodeB under it according to the cell information of described home base station cells, by pre-configured interface, the cell information of current area is directly sent to described Home eNodeB.
Further, when described network controller is the Home eNodeB network management system, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described Home eNodeB network management system is judged when described abutting subdistrict is macrocell, search the macro base station network management system at macro base station place under the macrocell according to the cell information of described macrocell, the cell information of current home base station cells is sent to described macro base station by described macro base station network management system; Described Home eNodeB network management system is judged when described abutting subdistrict is home base station cells, search Home eNodeB under the described home base station cells according to the cell information of described home cell, the cell information of current home base station cells is sent to described Home eNodeB.
Further, when described network controller is core net, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described core net is searched base station under the described abutting subdistrict according to the cell information of abutting subdistrict, and the cell information of current home cell is sent to base station under the described abutting subdistrict.
Further, in handoff procedure, described method further comprises: current Home eNodeB is according to the measurement report of terminal to report in the current home base station cells of its administration, obtain the cell information of the abutting subdistrict adjacent with described current home base station cells, do switch decision, determine the purpose base station, the cell information of target identification and current home base station cells is required to send to network controller by switching, described target identification comprises the identify label of purpose base station, and tracking area identification or Location Area Identification, described network controller sends to the purpose base station of being determined by described target identification with the cell information of current home base station cells, after the cell information of current home base station cells is received in described purpose base station, judge according to the cell information of current home base station cells whether described current home base station cells whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
Further, described current Home eNodeB also sends to network controller with the access control type of current home base station cells, described network controller is transmitted to described purpose base station with the access control type of described current home base station cells, and whether described purpose base station also upgrades local Neighboring Cell List according to the access control type decided of described current home base station cells.
Further, the access control type of current home base station cells comprises open, closed, hybrid.
For solving the problems of the technologies described above, the present invention also provides a kind of system that obtains adjacent district information, comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB is used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, and the cell information of described abutting subdistrict is sent to network controller;
Described network controller, the cell information that is used for the described abutting subdistrict that sends according to the source Home eNodeB is determined the purpose base station, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
For solving the problems of the technologies described above, the present invention also provides a kind of system that obtains adjacent district information, comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB, be used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, determine to switch the purpose sub-district according to the cell information of abutting subdistrict, the cell information of described source home base station cells and the cell identity information of switching purpose sub-district are sent to network controller;
Described network controller is used for determining the purpose base station of switching according to the cell identity information of switching the purpose sub-district, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
Further, described source Home eNodeB also is used for the access control type of source home base station cells is sent to described network controller; Described network controller also is used for the access control type of described source home base station cells is transmitted to described purpose base station; Described purpose base station also is used for whether upgrading local Neighboring Cell List according to the access control type decided of described current home base station cells.
The present invention is on the basis of Home eNodeB automatic scan adjacent area and UE reporting neighboring cell, and a kind of of proposition is the optimization method of base station configuration neighboring BS information.By the inventive method, can be the base station configuration neighboring BS information in time, thereby reduced by the UE reporting neighboring cell bring to the loss of UE electric weight and improved efficiency of measurement.The present invention is applicable to 3G family base station system and LTE family base station system simultaneously.
Description of drawings
Fig. 1 is the family base station system structure chart;
Fig. 2 is an embodiment application scenarios schematic diagram;
Fig. 3 is embodiment 1 schematic flow sheet;
Fig. 4 is embodiment 2 schematic flow sheets;
Fig. 5 is embodiment 3 schematic flow sheets;
Fig. 6 is embodiment 4 schematic flow sheets.
Embodiment
Inventive concept of the present invention is: current Home eNodeB obtains the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration, the cell information of the described abutting subdistrict that current Home eNodeB sends according to current Home eNodeB according to the cell information of described abutting subdistrict or network controller, determine the purpose base station, the cell information of current home base station cells is sent to described purpose base station by network controller.
Described current Home eNodeB one or both in the following ways obtain the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration: the adjacent abutting subdistrict of current home base station cells of scanning and its administration when described current Home eNodeB powers on, obtain the cell information of described abutting subdistrict; Described current Home eNodeB obtains the cell information of described abutting subdistrict according to the measurement report that is arranged in the terminal to report of current home base station cells.
After described current Home eNodeB obtains the cell information of abutting subdistrict according to the measurement report of terminal to report, judge that according to the cell information of described abutting subdistrict described abutting subdistrict is whether in local Neighboring Cell List, whether upgrade local Neighboring Cell List with decision, when abutting subdistrict not in local Neighboring Cell List, the cell information of this abutting subdistrict is added in the local Neighboring Cell List.
After the cell information of current home base station cells is received in described purpose base station, judge that according to the cell information of current home base station cells described current home base station cells is whether in local Neighboring Cell List, whether upgrade local Neighboring Cell List with decision, when current home base station cells not in local Neighboring Cell List, the cell information of this current home base station cells is added in the local Neighboring Cell List.
For the LTE system, described cell information comprises PCI (Physical Cell Identifier, Physical Cell Identifier), sub-district overall identification, tracking area sign indicating number; For the 3G system, cell information comprises PSC (PrimaryScrambling Code, basic scrambler), sub-district overall identification, Location Area Code, RNC ID (radio network controller identifier).
Described network controller can be a femto gateway, or the Home eNodeB network management system, or core net.
When described network controller is femto gateway, determine the purpose base station and further comprise: when described femto gateway judges that described abutting subdistrict is macrocell to the step that described purpose base station sends the cell information of current home base station cells, search macro base station under it according to the cell information of described macrocell, the cell information of current area is directly sent to described macro base station; Described femto gateway is judged when described abutting subdistrict is home base station cells, search Home eNodeB under it according to the cell information of described home base station cells, the cell information of current area directly or by other femto gateways is sent to described Home eNodeB; Described femto gateway judges that described abutting subdistrict is a home base station cells and when directly being connected to core net, search Home eNodeB under it according to the cell information of described home base station cells, by pre-configured interface, the cell information of current area is directly sent to described Home eNodeB.
When described network controller is the Home eNodeB network management system, determine the purpose base station and further comprise: when described Home eNodeB network management system judges that described abutting subdistrict is macrocell to the step that described purpose base station sends the cell information of current home base station cells, search the macro base station network management system at macro base station place under the macrocell according to the cell information of described macrocell, the cell information of current home base station cells is sent to described macro base station by described macro base station network management system; Described Home eNodeB network management system is judged when described abutting subdistrict is home base station cells, search Home eNodeB under the described home base station cells according to the cell information of described home cell, the cell information of current home base station cells is sent to described Home eNodeB.
When described network controller is core net, determine the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells: described core net is searched base station under the described abutting subdistrict according to the cell information of abutting subdistrict, and the cell information of current home cell is sent to base station under the described abutting subdistrict.
In handoff procedure, described method further comprises: current Home eNodeB is according to the measurement report of terminal to report in the current home base station cells of its administration, obtain the cell information of the abutting subdistrict adjacent with described current home base station cells, do switch decision, determine the purpose base station, the cell information of target identification and current home base station cells is required to send to network controller by switching, described target identification comprises the identify label of purpose base station, and tracking area identification or Location Area Identification, described network controller sends to the purpose base station of being determined by described target identification with the cell information of current home base station cells, after the cell information of current home base station cells is received in described purpose base station, judge according to the cell information of current home base station cells whether described current home base station cells whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
Described current Home eNodeB also sends to network controller with the access control type of current home base station cells, described network controller is transmitted to described purpose base station with the access control type of described current home base station cells, and whether described purpose base station also upgrades local Neighboring Cell List according to the access control type decided of described current home base station cells.The access control type of current home base station cells comprises open, closed, hybrid.
Realize that system for carrying out said process comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB is used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, and the cell information of described abutting subdistrict is sent to network controller;
Described network controller, the cell information that is used for the described abutting subdistrict that sends according to the source Home eNodeB is determined the purpose base station, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
The another kind of system that realizes said method comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB, be used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, determine to switch the purpose sub-district according to the cell information of abutting subdistrict, the cell information of described source home base station cells and the cell identity information of switching purpose sub-district are sent to network controller;
Described network controller is used for determining the purpose base station of switching according to the cell identity information of switching the purpose sub-district, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
Further, described source Home eNodeB also is used for the access control type of source home base station cells is sent to described network controller; Described network controller also is used for the access control type of described source home base station cells is transmitted to described purpose base station; Described purpose base station also is used for whether upgrading local Neighboring Cell List according to the access control type decided of described current home base station cells.
For convenience of description, suppose application scenarios shown in Figure 2, wherein:
HeNB1: Home eNodeB 1, administration home base station cells 1 (Cell1) is connected to femto gateway 1;
HeNB2: Home eNodeB 2, administration home base station cells 2 (Cell2) is connected to femto gateway 1;
HeNB3: Home eNodeB 3, administration home base station cells 3 (Cell3) is connected to femto gateway 2;
HeNB4: Home eNodeB 4, administration home base station cells 4 (Cell4) is directly connected to core net;
MeNB5: macro base station 5, administration macrocell 5 (Cell5).
Home base station network management system: work such as the location-authentication of responsible Home eNodeB, data configuration, performance data collection;
MeNB5 base station network management system: the network management system of macro base station MeNB5, work such as the data configuration of responsible MeNB5, performance data collection;
Cell2, Cell3, Cell4, Cell5 are the abutting subdistricts of Cell1.
Embodiment is the example explanation with the LTE family base station system, is equally applicable to the 3G family base station system, does not only have the notion of PCI in the 3G system, corresponding to PSC, can determine according to this PSC whether abutting subdistrict is macrocell; And adjacent district information also needs to comprise RNC ID, with described RNC ID and sub-district overall identification come together unique determine a sub-district or base station; In addition, in the 3G system, the tracking area sign indicating number is called Location Area Code.Be not directly connected to the Home eNodeB of core net in the 3G family base station system, in addition process is consistent.
Embodiment 1
Scanning result when femto gateway or Home eNodeB network management system power on according to Home eNodeB is other base stations (base station under the abutting subdistrict) configuration adjacent district informations, and detailed process as shown in Figure 3.
Step 301, the abutting subdistrict of scanning Cell1 was given femto gateway 1 or Home eNodeB network management system the reporting district information that scans when Home eNodeB HeNB1 powered on;
For the LTE system, above-mentioned cell information comprises PCI, sub-district overall identification and tracking area sign indicating number.For the 3G system, adjacent district information comprises PSC, sub-district overall identification, Location Area Code and RNC ID.
Step 302, femto gateway 1 or Home eNodeB network management system are obtained adjacent district information from the message that Home eNodeB HeNB1 reports, to different Target cells, carry out different processing procedures:
Described separately to the operation of femto gateway and Home eNodeB network management system below.
For femto gateway, handle as follows:
Judge whether described abutting subdistrict is macrocell, if, find macro base station under the described macrocell according to the cell information of abutting subdistrict, the cell information of current area is directly sent to described macro base station (step 302a); If not, illustrate that then described abutting subdistrict is a home base station cells, further judge under the described abutting subdistrict that the base station is whether under described femto gateway is administered, if, then described femto gateway directly sends to Home eNodeB (step 302b) under the described abutting subdistrict with the cell information of current area, if not, judge under the described abutting subdistrict that the base station is whether under other femto gateways administrations, if, find Home eNodeB under the described abutting subdistrict according to the cell information of abutting subdistrict, by described other femto gateways the cell information of current area is sent to Home eNodeB (step 302c) under the described abutting subdistrict, if not, Home eNodeB directly was connected to core net under described abutting subdistrict then was described, Home eNodeB as described in finding according to the cell information (as by sub-district overall identification and/or tracking area sign indicating number) of abutting subdistrict under the abutting subdistrict, by pre-configured interface, the cell information of current area is directly sent to Home eNodeB (step 302d) under the described abutting subdistrict.
Particularly:
Step 302a, femto gateway 1 judges that by the PCI of abutting subdistrict described Cell5 is a macrocell, find corresponding macro base station MeNB5 according to sub-district overall identification and/or tracking area sign indicating number, by the interface between femto gateway 1 and macro base station MeNB5, send neighbor cell configuration message to MeNB5, comprise the cell information of Cell1 in the message;
Interface between femto gateway and macro base station can pass through human configuration or SON (self-organizing network) mode.
Step 302b, base station HeNB2 was under femto gateway 1 administration under femto gateway 1 was judged Cell2, be that affiliated Home eNodeB HeNB2 of Cell2 and the affiliated Home eNodeB HeNB1 of Cell1 are under same femto gateway, the Home eNodeB HeNB2 of femto gateway 1 under Cell2 sends neighbor cell configuration message, comprises the cell information of Cell1 in the message;
In the LTE family base station system, the interface between femto gateway and the Home eNodeB is the S1 interface.
Step 302c, base station HeNB3 was under femto gateway 2 administrations under femto gateway 1 was judged Cell3, the Home eNodeB HeNB3 discord HeNB1 that is the Cell3 correspondence is under same femto gateway, femto gateway 1 finds the affiliated femto gateway 2 of Cell3 according to the adjacent district information (as sub-district overall identification and/or the tracking area sign indicating number of Cell3) of the abutting subdistrict Cell3 that Home eNodeB 1 reports, send neighbor cell configuration message by the interface between the femto gateway to this femto gateway 2, the cell information that wherein comprises Cell1, after femto gateway 2 is received, send the cell information of Cell1 to HeNB3;
If the corresponding relation of femto gateway 1 is pre-configured other femto gateway and tracking area sign indicating number, then femto gateway 1 can find corresponding femto gateway by the tracking area sign indicating number at abutting subdistrict place.
In the LTE family base station system, the interface between the femto gateway can be X2 interface but be not limited thereto style interface.
Step 302d, Home eNodeB HeNB4 was directly connected to core net under femto gateway 1 was judged Cell4, femto gateway 1 finds corresponding Home eNodeB HeNB4 according to the adjacent district information (such as sub-district overall identification or tracking area sign indicating number or the combination of the two) of Cell4, by the interface between femto gateway and Home eNodeB HeNB4, send neighbor cell configuration message to HeNB4, wherein comprise the cell information of Cell1;
Interface between femto gateway and direct-connected Home eNodeB can pass through human configuration or auto configuration mode.
For the Home eNodeB network management system, handle as follows:
The Home eNodeB network management system is judged when Cell5 is macrocell (for example judging according to PCI), according to cell information (such as sub-district overall identification or tracking area sign indicating number or the combination of the two) find the network management system of corresponding macro base station MeNB5, by the interface between Home eNodeB network management system and macro base station network management system, the cell information of Cell1 is sent to the macro base station network management system, the macro base station network management system sends neighbor cell configuration message to MeNB5 again, wherein comprises the cell information of Cell1;
The femto gateway system judges that Cell2, Cell3, Cell4 are home base station cells, cell information (such as sub-district overall identification or tracking area sign indicating number or the combination of the two) according to each sub-district finds the affiliated base station (HeNB2, HeNB3, HeNB4) of each abutting subdistrict, send neighbor cell configuration message to HeNB2, HeNB3 and HeNB4 respectively, wherein comprise the cell information of Cell1;
Interface between Home eNodeB network management system and the Home eNodeB adopts TR069 or other agreements.
Step 303 target BS (HeNB2 or HeNB3 or HeNB4 or MeNB5) receives the neighbor cell configuration message of femto gateway or the transmission of Home eNodeB network management system, and the cell information of Cell1 is added in the local Neighboring Cell List of preserving.
Before adding the local Neighboring Cell List of preserving, can also judge the cell information whether Cell1 is arranged in the Neighboring Cell List earlier, when not having, it is added in the Neighboring Cell List.
Adopt neighbor cell configuration message base station under adjacent sub-district to send the cell information of current area in the present embodiment, also can use existing message to carry the cell information of current area in other embodiments.
Embodiment 2
Home eNodeB obtains adjacent district information according to the terminal measurement result, and adjacent district information reported femto gateway or Home eNodeB network management system, femto gateway or Home eNodeB network management system are other base stations (base station under the abutting subdistrict) configuration adjacent district informations, and detailed process as shown in Figure 4.
In some cases, when but HeNB1 scanning is in the coverage centre of Cell1 and Cell2 less than sub-district Cell2 UE, UE can detect sub-district Cell2, and might satisfy the switching requirement, and at this moment the sub-district of the mutual configuration of HeNB1 and HeNB2 needs the other side administration is an abutting subdistrict.In like manner, there are kindred circumstances in HeNB3 and MeNB4.
Only describe the processing of the processing same family base-station gateway of Home eNodeB network management system below with the example that is treated to of femto gateway.
Step 401, HeNB1 is the control of UE allocating and measuring, and UE reporting neighboring cell measurement report wherein comprises the adjacent area parameter list, and the adjacent area parameter comprises PCI, cell information (condition is optional, comprises sub-district overall identification, PLMNID, tracking area sign indicating number) and signal quality etc.;
The optional implication of above-mentioned cell information condition is: do not comprise cell information in the measurement report that UE reports generally speaking, need read a plurality of system informations because will obtain cell information; If network needs UE reporting subdistrict information, then need in the purpose of measuring control messages, illustrate.
Step 402, the adjacent area parameter list in the HeNB1 obtaining step 401 described measurement reports is at first searched in the Neighboring Cell List that preserve this locality according to PCI, disposes if find corresponding district then do not need to increase newly abutting subdistrict; If search less than, then increase adjacent district information, send a notification message simultaneously to femto gateway 1, wherein comprise the cell information (comprising parameters such as PCI, sub-district overall identification, tracking area sign indicating number) of the abutting subdistrict of newly-increased HeNB1;
Can take the mode of Neighboring Cell List to send described notification message.
Above-mentioned process of searching in the Neighboring Cell List that preserve this locality according to PCI if there is the PCI conflict, then needs to confirm it specifically is which sub-district according to the sub-district overall identification.If do not comprise the sub-district overall identification in the measurement report that UE sends, then HeNB1 need reconfigure to measure to control and require to read cell information to UE, perhaps according to the sub-district overall identification of PCI to femto gateway 1 or this sub-district of home base station network management system requested.
Step 403, femto gateway 1 receives the notification message that Home eNodeB HeNB1 sends, learn that HeNB1 has upgraded the abutting subdistrict configuration, the adjacent district information that femto gateway 1 sends according to HeNB1 determines which sub-district is the abutting subdistrict that HeNB1 upgrades, base station HeNB2, HeNB3, HeNB4, MeNB5 that the abutting subdistrict (Cell2, Cell3, Cell4, Cell5) that increases to HeNB1 is corresponding send neighbor cell configuration message, concrete processing procedure repeats no more referring to step 402a, 402b, 402c and the 402d of step 302 and Fig. 4 herein;
Step 404: target BS (HeNB2 or HeNB3 or HeNB4 or MeNB5) receives the neighbor cell configuration message of femto gateway or the transmission of Home eNodeB network management system, and the information of Cell1 is added in the local Neighboring Cell List.
The cell information of whether having preserved Cell1 in the local Neighboring Cell List can be judged in each base station before upgrading Neighboring Cell List, do not upgrade when having again.
Embodiment 3
To other cell configuration adjacent district informations, detailed process as shown in Figure 5 by core net
Step 501, the abutting subdistrict of scanning Cell1 when Home eNodeB HeNB1 powers on, scanning obtains the cell information of abutting subdistrict;
Step 502, Home eNodeB HeNB1 sends to MME to the cell information of abutting subdistrict by femto gateway by the S1 interface message, concrete message can be eNB configuration message transfer (eNBCONFIGURATION TRANSFER) or other UE irrelevant messages, is called " up adjacent district information message transfer " for convenience of description in the present embodiment;
Comprise current area (being Cell1) information and abutting subdistrict (single subdistrict or cell list) information in the above-mentioned adjacent district information message transfer, cell information may comprise parameters such as PCI, sub-district overall identification, tracking area sign indicating number.
Above-mentioned abutting subdistrict can be a home base station cells, also can be macrocell.
Step 503, MME receives up adjacent district information message transfer, obtains the adjacent district information that wherein comprises, and (such as sub-district overall identification or tracking area sign indicating number or the combination of the two) finds corresponding target BS according to these information;
MME is by the corresponding relation of knowing each cell information and respective base station alternately pre-configured or when powering on.
Step 504, MME sends to target BS to the cell information of current base station (being HeNB1) by the S1 interface message, concrete message can be MME configuration message transfer (MMECONFIGURATION TRANSFER) or other UE irrelevant messages, is called " downstream neighbor cell information message transfer " for convenience of description in the present embodiment;
MME is to the S1 interface message of base station, and to dissimilar target BS send mode differences: to there being the situation of femto gateway, the S1 interface message sends to corresponding Home eNodeB by femto gateway; The situation that does not have Home eNodeB, and macro base station, S1 interface message directly send to corresponding base station.
Step 505, target BS receive downstream neighbor cell information message transfer, and the cell information that wherein comprises is joined in the local Neighboring Cell List.
Embodiment 4
Home eNodeB is determined abutting subdistrict according to the UE measurement report, reports core net then, and detailed process as shown in Figure 6.
Step 601, HeNB1 is the control of UE allocating and measuring, and UE reporting neighboring cell measurement report wherein comprises the adjacent area parameter list, and the adjacent area parameter comprises PCI, sub-district global information (condition is optional, comprises sub-district overall identification, PLMNID, tracking area sign indicating number) and signal quality etc.;
The optional implication of above-mentioned sub-district global information condition is: UE determines whether the reporting subdistrict global information according to the measurement control types and the purpose of network configuration.
Step 602, each adjacent area PCI in the measurement report under the HeNB1 obtaining step 601 at first searches in the Neighboring Cell List that preserve this locality according to PCI, disposes if find corresponding district then do not need to increase newly abutting subdistrict; If search less than, then increase abutting subdistrict configuration, send a notification message to core net simultaneously;
Above-mentioned " sending a notification message to core net " is to point to MME to send the S1 interface message, concrete message can be eNB CONFIGURATION TRANSFER or other UE irrelevant messages, be called " up adjacent district information message transfer " for convenience of description in the present embodiment, comprise current area (being Cell1) information and abutting subdistrict (single subdistrict or cell list) information in the message, cell information comprises parameters such as PCI, sub-district overall identification, tracking area sign indicating number.
If do not comprise the sub-district overall identification in the measurement report that UE sends, then need measurement control, perhaps according to the sub-district overall identification of PCI to femto gateway or this sub-district of home base station network management system requested to UE configuration reporting subdistrict overall identification.
Step 603:MME receives up adjacent district information message transfer, obtains the adjacent district information that wherein comprises, and finds corresponding target BS according to these information;
Step 604:MME sends to target BS to the cell information of current base station (being HeNB1) by the S1 interface message, concrete message can be MMECONFIGURATION TRANSFER or other UE irrelevant messages, is called " downstream neighbor cell information message transfer " for convenience of description in the present embodiment.
Step 605: target BS receives downstream neighbor cell information message transfer, and the cell information that wherein comprises is joined in the local Neighboring Cell List.
Embodiment 5
The embodiment of corresponding method 2.In the present embodiment, current area is called the cell-of-origin, and abutting subdistrict is called Target cell.
Step 701, UE is linked into the mobile network and initiates professional by Home eNodeB;
Step 702, Home eNodeB receive the measurement report of UE to the adjacent area, do switch decision, and decision is initiated the S1 handoff procedure to adjacent macro base station;
Step 703, Home eNodeB sends to switch to core net and requires (Handover Required), wherein comprise target identification (Target ID, comprise base station identity sign and tracking area identification), and the source is to the transparent transmission information field information such as (Source to Target Transparent Container) of destination;
Can also carry source home base station cells type indication in the handoff request, can know that by above-mentioned home base station cells type target BS the cell-of-origin is a home base station cells, the access control type that also may obtain the cell-of-origin is such as open, closed or hybrid.That is to say, comprise cell-of-origin type and/or cell-of-origin access control type in the cell type indication.
The cell information (such as PCI, sub-district overall identification, tracking area identification etc.) that comprises the cell-of-origin among the above-mentioned Source to Target Transparent Container.
Step 704, core net finds the corresponding target base station according to target identification, and send a handover request to the purpose base station, wherein comprise the bearing parameter of needs switching and the transparent transmission information field information such as (Source to Target Transparent Container) that destination is arrived in the source at least;
Above-mentioned home base station cells type indication and Source to Target Transparent Container are exactly the same file-name field in the step 703, and core net is not made an amendment this field contents.
If also carry the cell type indication in the handoff request, then core net also carries the cell type indication in the handoff request that the purpose base station sends.
Step 705, target BS receive handoff request message, and handoff procedure is carried out in indication according to message, and upgrades local Neighboring Cell List;
When upgrading local Neighboring Cell List, can judge the cell information whether cell-of-origin is arranged in the Neighboring Cell List earlier, when not having, the cell information of the cell-of-origin that comprises in the handoff request is added in the Neighboring Cell List.
If also carry the cell type indication in the handoff request, then target BS upgrades local Neighboring Cell List according to indicated type in pre-configured condition and the cell type indication.For example cell type indication expression cell-of-origin type is Home eNodeB and access style when being open or hybrid, and the target Home eNodeB just obtains cell-of-origin information, and it is joined in the local Neighboring Cell List of preserving.Concrete condition has multiple combination, gives unnecessary details no longer one by one herein.
Step 706 is carried out all the other handoff procedures.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (13)
1. a method of obtaining adjacent district information is characterized in that,
Current Home eNodeB obtains the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration, the cell information of the described abutting subdistrict that current Home eNodeB sends according to current Home eNodeB according to the cell information of described abutting subdistrict or network controller, determine the purpose base station, the cell information of current home base station cells is sent to described purpose base station by network controller.
2. the method for claim 1 is characterized in that,
Described current Home eNodeB one or both in the following ways obtain the cell information of the abutting subdistrict adjacent with the current home base station cells of its administration:
The cell information of described abutting subdistrict is obtained in the scanning and the adjacent abutting subdistrict of current home base station cells of its administration when described current Home eNodeB powers on;
Described current Home eNodeB obtains the cell information of described abutting subdistrict according to the measurement report that is arranged in the terminal to report of current home base station cells.
3. method as claimed in claim 2 is characterized in that,
After described current Home eNodeB obtains the cell information of abutting subdistrict according to the measurement report of terminal to report, judge according to the cell information of described abutting subdistrict whether described abutting subdistrict whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
4. the method for claim 1 is characterized in that,
After the cell information of current home base station cells is received in described purpose base station, judge according to the cell information of current home base station cells whether described current home base station cells whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
5. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that,
For the LTE system, described cell information comprises Physical Cell Identifier (PCI), sub-district overall identification, tracking area sign indicating number;
For the 3G system, cell information comprises basic scrambler (PSC), sub-district overall identification, Location Area Code, radio network controller identifier (RNC ID).
6. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that,
When described network controller is femto gateway, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described femto gateway judges when described abutting subdistrict is macrocell, searches macro base station under it according to the cell information of described macrocell, and the cell information of current area is directly sent to described macro base station;
Described femto gateway is judged when described abutting subdistrict is home base station cells, search Home eNodeB under it according to the cell information of described home base station cells, the cell information of current area directly or by other femto gateways is sent to described Home eNodeB;
Described femto gateway judges that described abutting subdistrict is a home base station cells and when directly being connected to core net, search Home eNodeB under it according to the cell information of described home base station cells, by pre-configured interface, the cell information of current area is directly sent to described Home eNodeB.
7. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that,
When described network controller is the Home eNodeB network management system, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described Home eNodeB network management system is judged when described abutting subdistrict is macrocell, search the macro base station network management system at macro base station place under the macrocell according to the cell information of described macrocell, the cell information of current home base station cells is sent to described macro base station by described macro base station network management system;
Described Home eNodeB network management system is judged when described abutting subdistrict is home base station cells, search Home eNodeB under the described home base station cells according to the cell information of described home cell, the cell information of current home base station cells is sent to described Home eNodeB.
8. as claim 1 or 2 or 3 or 4 described methods, it is characterized in that,
When described network controller is core net, determines the purpose base station and further comprise to the step that described purpose base station sends the cell information of current home base station cells:
Described core net is searched base station under the described abutting subdistrict according to the cell information of abutting subdistrict, and the cell information of current home cell is sent to base station under the described abutting subdistrict.
9. the method for claim 1 is characterized in that,
In handoff procedure, described method further comprises:
Current Home eNodeB is according to the measurement report of terminal to report in the current home base station cells of its administration, obtain the cell information of the abutting subdistrict adjacent with described current home base station cells, do switch decision, determine the purpose base station, the cell information of target identification and current home base station cells is required to send to network controller by switching, described target identification comprises the identify label of purpose base station, and tracking area identification or Location Area Identification, described network controller sends to the purpose base station of being determined by described target identification with the cell information of current home base station cells, after the cell information of current home base station cells is received in described purpose base station, judge according to the cell information of current home base station cells whether described current home base station cells whether in local Neighboring Cell List, upgrades local Neighboring Cell List with decision.
10. method as claimed in claim 9 is characterized in that,
Described current Home eNodeB also sends to network controller with the access control type of current home base station cells, described network controller is transmitted to described purpose base station with the access control type of described current home base station cells, and whether described purpose base station also upgrades local Neighboring Cell List according to the access control type decided of described current home base station cells.
11. method as claimed in claim 10 is characterized in that,
The access control type of current home base station cells comprises open, closed, hybrid.
12. a system that obtains adjacent district information is characterized in that, comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB is used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, and the cell information of described abutting subdistrict is sent to network controller;
Described network controller, the cell information that is used for the described abutting subdistrict that sends according to the source Home eNodeB is determined the purpose base station, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
13. a system that obtains adjacent district information is characterized in that, comprises source Home eNodeB, network controller and purpose base station, wherein:
Described source Home eNodeB, be used to obtain the cell information of the abutting subdistrict adjacent with the source home base station cells of its administration, determine to switch the purpose sub-district according to the cell information of abutting subdistrict, the cell information of described source home base station cells and the cell identity information of switching purpose sub-district are sent to network controller;
Described network controller is used for determining the purpose base station of switching according to the cell identity information of switching the purpose sub-district, and the cell information of source home base station cells is sent to described purpose base station;
Described purpose base station is used to receive the cell information of described source home base station cells, judges described source home base station cells whether in local Neighboring Cell List according to the cell information of source home base station cells, and whether decision upgrades local Neighboring Cell List.
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| PCT/CN2010/075730 WO2011020410A1 (en) | 2009-08-18 | 2010-08-05 | Method and system for acquiring neighbour cell information |
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| WO2011020410A1 (en) | 2011-02-24 |
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