CN105228168A - Smallcell scale group network system and method and Smallcell, centralized-control center - Google Patents
Smallcell scale group network system and method and Smallcell, centralized-control center Download PDFInfo
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- CN105228168A CN105228168A CN201510711146.1A CN201510711146A CN105228168A CN 105228168 A CN105228168 A CN 105228168A CN 201510711146 A CN201510711146 A CN 201510711146A CN 105228168 A CN105228168 A CN 105228168A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- 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
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Abstract
The invention discloses a kind of Smallcell scale group network system, comprising: multiple Smallcell, centralized-control center and Smallcell gateway, each described Smallcell is all connected with described Smallcell gateway by described centralized-control center; Described centralized-control center for realizing convergence and the distribution of data, and realizes centralized self-configuring and self-optimizing flow process.Smallcell scale group network system of the present invention, the topology information of current whole network is controlled by centralized-control center, perform centralized self-configuring and self-optimizing flow process, export the cell parameter such as Neighboring Cell List, working frequency points, transmitting power of Smallcell, and be issued to corresponding Smallcell, reduce manual maintenance cost, meet the application demand of Smallcell Scaledeployment.The present invention also comprises a kind of Smallcell scale network-building method, a kind of Smallcell and a kind of centralized-control center.
Description
[technical field]
The present invention relates to wireless communication field, particularly a kind of Smallcell scale group network system and method and Smallcell, centralized-control center.
[background technology]
Smallcell is lower powered radio access node, namely small-sized indoor base station, its wired connection by standard (such as DSL) accesses Smallcell system gateway (Gateway), and connect the core network of operator further, for indoor user provides the wireless access service of miscellaneous service, can network capacity be improved, the service business of two-forty is provided, allow user have better Consumer's Experience.
In current wireless communication field, 2G/3G/4G system in market place builet below the ground, subway, tunnel, the scene such as villages within the city, all there is the problem of signal blind zone and the network coverage of weak district and extension.And extensively universal along with the Internet broadband business, indoor broadband access is more and more convenient, and the application of Smallcell also can be more and more wider, comprise that focus covers, enterprises covers and family covers.
But the coverage of single Smallcell and user capacity are all limited, the demand of some enterprise customer or the larger residential customer of area can not be met, thereby produce the demand utilizing Smallcell to carry out scale networking.
When Scaledeployment Smallcell, along with rolling up of Smallcell community, the interoperability frequency that mobile terminal carries out cell reselection and switching between different Smallcell community also will increase greatly, so, for ensureing the continuity of mobile terminal service, needing is two Smallcell mutual configuring adjacent cell relations.
And, when Scaledeployment Smallcell, generally, the special frequency of mobile operator distribution is less, the close Smallcell in geographical position will likely configure identical frequency and BSIC (BaseStationIdentityCode, base station identity code.For GSMSmallcell) or PCI (PhysicalCellIdentifier, Physical Cell Identifier.For LTESmallcell), and this will cause mobile terminal when switching, and cannot distinguish Target cell, cause handoff failure, so when Scaledeployment Smallcell, need to avoid different Smallcell communities to use identical frequency, BSIC or PCI.In addition, when Scaledeployment Smallcell, because Smallcell quantity is more, there is certain interference in different Smallcell minizone, so, need the transmitting power reasonably configuring each Smallcell, to reduce the interference between different Smallcell.
So, when Scaledeployment Smallcell, need the cell parameter such as working frequency points, Neighboring Cell List, transmitting power reasonably configuring each Smallcell community.
Existing Smallcell product, generally all there is self-configuration function, namely Smallcell is when electrifying startup, by intercepting peripheral cell signal, obtain information of adjacent cells, and by certain criterion (as SON (Self-OrganizedNetwork, self-configuring flow process)), complete the configuration of the cell parameters such as Neighboring Cell List, transmitting power, working frequency points.
But when Scaledeployment Smallcell, due to the uncertainty of Smallcell switching on and shutting down time, the Smallcell existence first powered on intercepts limited problem, the information of the Smallcell community powered on after can not getting.So, if each Smallcell realizes self-configuration function separately, the cell parameter configuration of different Smallcell is likely caused to there is conflict, as adjacent area does not have interworking, different Smallcell communities uses identical frequency, BSIC or PCI, and transmitting power causes the problems such as presence of intercell interference greatly.
For avoiding the problems referred to above, if by artificial mode, the cell parameters such as configuration effort frequency, Neighboring Cell List, transmitting power, when disposing Smallcell on a small scale, have certain feasibility; But along with the increase of Smallcell quantity, the manpower of at substantial will be needed for giving each Smallcell manual configuration cell parameter, and an often newly-increased Smallcell community or a deletion Smallcell community, all need manually to reconfigure in real time, the change of network could be adapted to.So when Scaledeployment Smallcell, the method for human configuration Smallcell cell parameter can not adapt to the change of network in time, and manpower safeguards that the cost needed is high.
[summary of the invention]
Primary and foremost purpose of the present invention is to provide a kind of lower-cost Smallcell scale group network system, it can realize the Neighboring Cell List of Smallcell, the self-configuring of the cell parameter such as working frequency points and transmitting power and self-optimizing, meets the application demand of Smallcell Scaledeployment.
For realizing this object, the present invention adopts following technical scheme:
A kind of Smallcell scale group network system, comprising: multiple Smallcell, centralized-control center and Smallcell gateway, and each described Smallcell is all connected with described Smallcell gateway by described centralized-control center; Described Smallcell, for intercepting the signal of its peripheral cell, and reporting described centralized-control center by the mode that its intercepted result optimizes demand with neighboring BS information or cell parameter, preserving and the cell parameter using centralized-control center to issue; Described centralized-control center, for receive and the neighboring BS information that reports for the treatment of S mallcell or cell parameter optimize demand, and issues the cell parameter of correspondence for Smallcell; Described Smallcell gateway is also for being connected with the equipment of the core network of operator; Wherein, described neighboring BS information comprises the frequency of neighbor base station, BSIC or PCI, cell ID and received signal strength, and described cell parameter comprises Neighboring Cell List, working frequency points, BSIC or PCI and transmitting power.
Compared with prior art, advantage of the present invention is:
Because the cell parameter of each Smallcell is configured by centralized-control center, avoid and uncertainly to affect by its adjacent area Smallcell switching on and shutting down time, avoid itself and adjacent area Smallcell to use identical frequency and BSIC or PCI and cause mobile terminal cannot distinguish Target cell when cell merge and cause handoff failure, and adjacent area Smallcell use transmitting power excessive and cause adjacent area interference, ensure that the normal usage energy of this Smallcell scale group network system, and reduce manual maintenance cost, meet the application demand of Smallcell scale networking.
In addition, described centralized-control center and each Smallcell set up a first ipsec security tunnel respectively, this centralized-control center only sets up a second ipsec security tunnel with described Smallcell gateway, thus decrease the expense of network side encrypted byte, also save required return network bandwidth, reduce the cost of Smallcell scale group network system to a certain extent.
Another object of the present invention is to provide a kind of Smallcell being applied to above-mentioned Smallcell scale group network system, it can be connected to Smallcell gateway by centralized-control center, it comprises the detection module, reporting module and the receiver module that connect successively, described detection module is used for intercepting the cell signal around this Smallcell, exports neighboring BS information and cell parameter optimization demand; Described reporting module is used for that the neighboring BS information of detection module output or cell parameter are optimized demand and reports to centralized-control center; Described receiver module is for receiving and processing cell parameter that centralized-control center issues and make it to come into force in real time, and wherein, described cell parameter comprises Neighboring Cell List, working frequency points, BSIC or PCI and transmitting power.
Another object again of the present invention is to provide a kind of centralized-control center being applied to above-mentioned Smallcell scale group network system, it is for being connected with multiple Smallcell and Smallcell gateway, comprise Secure Access Modules, self-configuring/self-optimizing module, and routing module; Described Secure Access Modules comprises interconnective secure accessing service end and secure accessing client, for setting up the first corresponding ipsec security tunnel and the two the first ipsec security tunnels to each Smallcell and Smallcell gateway, and realize the secure accessing of each Smallcell and the convergence/distribution of data; Described self-configuring/self-optimizing module, for receiving the neighboring BS information and cell parameter optimization demand that report with treatment S mallcell, carrying out centralized judgement to these information, and exporting corresponding cell parameter to Smallcell.Described routing module is used for for Smallcell provides the function accessing return network.
Further, described self-configuring/communicate with continuous print interactive protocol between self-optimizing module with each Smallcell, by the mode of asking and respond, completes the reciprocal process of whole information, thus the reliability that the information of increasing transmits.When the self-configuring/self-optimizing module of Smallcell or centralized-control center does not correctly respond the request of the other side, then think and run into mistake in this time request and the process of response, stop this request and again perform the process of request and response.
In addition, described described self-configuring/self-optimizing module also keeps heartbeat to be connected with each Smallcell, when detecting that the heartbeat of certain Smallcell is lost, then this Smallcell community is deleted in the Neighboring Cell List of other Smallcell, and in upper once self-optimizing process by amended down-sending neighbor list in the Smallcell of correspondence, optimize the adjacent area parameter of respective cell.
Another object again of the present invention is to provide a kind of Smallcell scale network-building method, comprise multiple Smallcell, centralized-control center and Smallcell gateway, comprise the following steps: described centralized-control center and described Smallcell gateway set up the second ipsec security tunnel; During each Smallcell electrifying startup, all set up a first ipsec security tunnel with centralized-control center, and then be connected and access carrier network with the second ipsec security tunnel of described Smallcell gateway by its first ipsec security tunnel; Each Smallcell, when electrifying startup, intercepts the signal of its peripheral cell, obtains neighboring BS information and also reports to centralized-control center, and the cell parameter issued according to described centralized-control center and powering on.
A kind of Smallcell scale network-building method provided by the invention, when the internal clocking being included in centralized-control center further reaches the time that its internal zone parameter self-optimizing timer presets, the Smallcell worked on power is carried out to the step of self-optimizing, this self-optimizing step comprises: described centralized-control center issues cell parameter self-optimizing request to Smallcell; Smallcell reports its cell parameter to optimize demand to centralized-control center; Described centralized-control center is optimized demand according to the cell parameter of Smallcell and is performed cell parameter self-optimizing flow process and output in corresponding Smallcell.
A kind of Smallcell scale network-building method provided by the invention, the step of carrying out self-optimizing after the time that the timer that the internal clocking being included in Smallcell further arrives its inside sets, this self-optimizing step comprises: described Smallcell powers on and sets up community, and after the time of timer setting that the internal clocking of Smallcell arrives its inside, intercept to obtain up-to-date neighboring BS information to its peripheral cell signal, export cell parameter and optimize demand, and reporting subdistrict parameter optimization demand is to centralized-control center; After centralized-control center receives the cell parameter optimization demand that this Smallcell reports, according to predetermined criterion, perform cell parameter self-optimizing flow process, and output in corresponding Smallcell.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of Smallcell scale group network system of the present invention;
Fig. 2 is the self-configuring flow chart of a kind of Smallcell cell parameter provided by the invention;
Fig. 3 is a kind of Smallcell Neighboring Cell List self-optimizing flow chart provided by the invention;
Fig. 4 is another kind of Smallcell Neighboring Cell List self-optimizing flow chart provided by the invention;
Fig. 5 is a kind of Smallcell working frequency points provided by the invention and BSIC self-optimizing flow chart.
[embodiment]
Be further described the present invention below in conjunction with accompanying drawing and exemplary embodiment, wherein identical in accompanying drawing label all refers to identical parts.In addition, if the detailed description of known technology is for illustrating that feature of the present invention is unnecessary, then omitted.
Fig. 1 shows Smallcell scale group network system of the present invention, and it is connected with the equipment of the core network of operator, to expand the coverage of indoor covering system and to improve its user capacity, meets the demand of indoor coverage of signal.
This Smallcell scale group network system 100 comprises multiple Smallcell (such as SmallcellA to SmallcellF), centralized-control center 20 and Smallcell gateway 30, and each Smallcell is all connected with described Smallcell gateway 30 by described centralized-control center 20.
In the present embodiment, have 6 Smallcell (being respectively SmallcellA to SmallcellF), and be the Smallcell of GSM standard, each Smallcell is responsible for the communication of a community, also namely have 6 communities (being respectively Cell1 to Cell6).According to Fig. 1, can know, the adjacent area of the Cell1 community that SmallcellA is corresponding is Cell2, Cell4 and Cell5, establishes community corresponding to different Smallcell and adjacent area thereof according to this.
Described Smallcell is used for providing network insertion service for mobile terminal, peripheral cell signal is intercepted, and exporting its neighboring BS information or cell parameter optimization demand to centralized-control center 20, the cell parameters such as its Neighboring Cell List, working frequency points, BSIC, transmitting power are issued by centralized-control center.Wherein, described neighboring BS information comprises the frequency of neighbor base station, BSIC, cell ID and received signal strength etc., and cell parameter optimizes that demand comprises optimizing neighbor list demand, working frequency points optimizes demand, BSIC optimizes demand and transmitting power optimizes demand.
Described centralized-control center 20 is connected between these Smallcell and Smallcell gateways 30, itself and each Smallcell builds an IPSec (InternetProtocolSecurity, internet security is reached an agreement on) secure tunnel, with the convergence/distribution of the secure accessing and data that realize Smallcell, described centralized-control center 20 also builds a second ipsec security tunnel with Smallcell gateway 30, ensure the fail safe of communication data by return network.
Described Smallcell gateway 30 also for being connected with the equipment of the core network (non-label) of operator, makes the transmission can carrying out signal between this Smallcell scale group network system 100 and core net of operator.
Below the operation principle of this Smallcell scale group network system is introduced simply:
During SmallcellA electrifying startup, automatically intercept the signal of its peripheral cell, then intercepted result is reported described centralized-control center 20 in the mode of neighboring BS information.Described centralized-control center 20 receives, processes described neighboring BS information, and for this SmallcellA configures its cell parameter and make this SmallcellA power on this cell parameter.In like manner, other Smallcell powers on identical step.
In the present invention, because the cell parameter of each Smallcell is configured by centralized-control center 20, avoid and uncertainly to affect by its adjacent area Smallcell switching on and shutting down time, avoid itself and adjacent area Smallcell to use identical frequency and BSIC and cause mobile terminal cannot distinguish Target cell when cell merge and cause handoff failure, and adjacent area use transmitting power excessive and cause adjacent area interference, ensure that the normal usage energy of this Smallcell scale group network system 100, meet the application demand of Smallcell scale networking.
On the basis of above example, the present invention can also realize the function of self-optimizing.Particularly, cell parameter self-optimizing timer (not shown) is provided with in described centralized-control center 20, when the internal operation clock of described centralized-control center 20 is after setting duration, centralized-control center 20 issues cell parameter self-optimizing inquiry request to described SmallcellA, described SmallcellA process described cell parameter self-optimizing inquiry request also reports its cell parameter to optimize demand (obtaining according to its intercepted result) to centralized-control center 20, then centralized-control center 20 receives, process optimizing neighbor list demand, and issue cell parameter to this SmallcellA and make this SmallcellA upgrade, optimize its cell parameter.In like manner, other Smallcell carry out self-optimizing in an identical manner.
Or, SmallcellA self also can comprise inner timer, after its community is set up, the timer of its inside is set, after duration arrival is set, its peripheral cell signal is intercepted, obtains up-to-date neighboring BS information, and reporting neighboring cell list optimizes demand to centralized-control center 20 when detecting new adjacent area (having the Smallcell newly powered on, such as SmallcellB); After centralized-control center 20 receives the optimizing neighbor list demand that SmallcellA reports, according to predetermined criterion, perform adjacent area self-optimizing flow process, the adjacent area exporting SmallcellA upgrades list, and other adjacent area having accessed the Smallcell in this system upgrades list, and be issued in corresponding Smallcell; SmallcellA and other Smallcell reconfigures its Neighboring Cell List after receiving adjacent area renewal list.
According to above step, each Smallcell is by periodically reporting the neighboring BS information of intercepting to centralized-control center, make centralized-control center can grasp the topology information of current whole network, perform centralized self-optimizing flow process, export the Neighboring Cell List of Smallcell, working frequency points, BSIC and transmitting power to corresponding Smallcell, ensure that the reliability of this system.Meanwhile, owing to not needing artificial participation, decrease manual maintenance cost, meet the application demand of Smallcell Scaledeployment.
Further, described centralized-control center 20 sets up a first ipsec security tunnel respectively with each Smallcell, this centralized-control center 20 only sets up a second ipsec security tunnel with described Smallcell gateway 30, thus decrease the expense of network side encrypted byte, also save required return network bandwidth, reduce the cost of Smallcell scale group network system 100 to a certain extent.
Preferably, the corresponding community of each Smallcell, the Smallcell that different communities is corresponding different, the scale networking of many Smallcell is realized by centralized-control center 20, thus make this Smallcell scale group network system 100 have wider coverage and larger user capacity, and the interference between neighbor cell can be avoided.
Preferably, each described Smallcell is except the basic communication functions possessing Smallcell, in order to adapt to the demand of scale networking, (figure does not show also to comprise the detection module connected successively, down together), (figure does not show reporting module, lower same) and receiver module (figure does not show, lower same).Described detection module is used for intercepting the cell signal around this Smallcell, the measurement report of mobile terminal receive, and exports neighboring BS information or optimizing neighbor list demand.Described reporting module is used for the neighboring BS information of detection module output or optimizing neighbor list demand to report to centralized-control center.Described receiver module for receiving and processing the cell parameter that centralized-control center is issued to this Smallcell, and makes it to come into force in real time.
Described centralized-control center 20 comprises Secure Access Modules (scheming not show, lower same), self-configuring/self-optimizing module (figure does not show, lower same), and routing module (figure does not show, lower same).
Described Secure Access Modules is used for setting up the first corresponding ipsec security tunnel and the second ipsec security tunnel to Smallcell, Smallcell gateway, and described first ipsec security tunnel and the second ipsec security tunnel are conducted, to realize the secure accessing of multiple Smallcell and to ensure the fail safe of communication data by return network.
Particularly, described Secure Access Modules comprises secure accessing service end and secure accessing client.Described secure accessing service end is used for setting up an independently first ipsec security tunnel, to be encrypted communication data, to decipher and to distribute with each Smallcell.Described secure accessing client is used for setting up a second ipsec security tunnel, to be encrypted communication data, to decipher and to distribute with Smallcell gateway.
Described self-configuring/self-optimizing module is for receiving the neighboring BS information and parameter optimization demand that report with treatment S mallcell, and centralized decision process is carried out to these information, complete the configuration (be also corresponding Smallcell and distribute its Neighboring Cell List, frequency, BSIC, and transmitting power etc.) of each Smallcell cell parameter.
Preferably, the described self-configuring/communicate with predetermined agreement between self-optimizing module with each Smallcell of centralized-control center 20.This agreement is such as continuous print interactive protocol, by the mode of asking and respond, completes the reciprocal process of whole information, thus the reliability that the information of increasing transmits.When the self-configuring/self-optimizing module of Smallcell or centralized-control center does not correctly respond the request of the other side, then think and run into mistake in this time request and the process of response, stop this request and again perform the process of request and response.
In addition, described self-configuring/self-optimizing module and each Smallcell of centralized-control center 20 all keep heartbeat to be connected, when detecting that the heartbeat of certain Smallcell is lost, then this Smallcell community is deleted in the Neighboring Cell List of other Smallcell, and in upper once self-optimizing process by amended down-sending neighbor list in the Smallcell of correspondence, optimize the adjacent area parameter of respective cell.
Described routing module is used for for Smallcell provides the function accessing return network.
In other embodiments, described Smallcell also can work in other standards, such as LTE standard, and its PCI is distributed by centralized-control center.
Based on above-mentioned Smallcell scale group network system 100, present invention also offers a kind of Smallcell scale network-building method.
Particularly, comprise the steps:
Described centralized-control center 20 sets up the second ipsec security tunnel with described Smallcell gateway 30; During each Smallcell electrifying startup, all set up a first ipsec security tunnel with centralized-control center, and then be connected and access carrier network with the second ipsec security tunnel of described Smallcell gateway by its first ipsec security tunnel.
See Fig. 2, further, the step (for SmallcellA) for the current Smallcell allocating cell parameter powered on also is comprised:
SmallcellA electrifying startup;
SmallcellA, by predetermined agreement, sets up the communication connection with centralized-control center self-configuring/self-optimizing module;
The cell signal of SmallcellA to surrounding is intercepted, and obtains neighboring BS information, SmallcellA preserve and reporting neighboring cell information to centralized-control center;
Self-configuring/self-optimizing the module of centralized-control center is preserved also according to predetermined criterion, is performed Neighboring Cell List self-configuring flow process, export the Neighboring Cell List of SmallcellA after receiving the neighboring BS information that SmallcellA reports; And the Neighboring Cell List of SmallcellA according to new access, obtain other adjacent area having accessed Smallcell and upgrade list;
Centralized-control center issues Neighboring Cell List to SmallcellA, issues the Smallcell that adjacent area renewal list has accessed to other;
SmallcellA preserves and uses this Neighboring Cell List after receiving the Neighboring Cell List that centralized-control center 20 issues, and other receives the Smallcell that adjacent area that centralized-control center 20 issues upgrades list, reconfigures the Neighboring Cell List of current use;
After centralized-control center 20 successfully issues the Neighboring Cell List of SmallcellA, according to predetermined criterion, execution work frequency and BSIC self-configuring flow process, export working frequency points and the BSIC of SmallcellA, and be issued to SmallcellA;
SmallcellA preserves and uses this working frequency points and BSIC after receiving the working frequency points and BSIC that centralized-control center issues;
Thus, SmallcellA electrifying startup completes.
Other Smallcell all according to this step power on, thus complete the scale networking of many Small.
See Fig. 3, further, the Smallcell scale network-building method Smallcell also comprised for having powered on of the present invention carries out the step of optimizing neighbor list:
SmallcellA electrifying startup also, after setting up community, arranges its timer internal, after arranging duration arrival, intercepts, obtain up-to-date neighboring BS information to the cell signal of surrounding; Get up-to-date neighboring BS information and judge whether new adjacent area, when there is new adjacent area, then reporting neighboring cell list optimizes demand to centralized-control center;
After centralized-control center receives the optimizing neighbor list demand that SmallcellA reports, according to predetermined criterion, perform adjacent area self-optimizing flow process, the adjacent area exporting SmallcellA upgrades list, and the adjacent area of other Smallcell accessed upgrades list, and be issued to corresponding Smallcell;
SmallcellA and other Smallcell reconfigures its Neighboring Cell List after receiving the renewal list of its adjacent area.
See Fig. 4, in other embodiments, the Smallcell for having powered on carries out optimizing neighbor list and following steps also can be adopted to carry out:
Centralized-control center is set up with each Smallcell and is preserved heartbeat and is connected;
Centralized-control center judges whether that the heartbeat of Smallcell is lost, if had, delete the Neighboring Cell List of the Smallcell then accessed from other this Smallcell community, the adjacent area obtaining each Smallcell upgrades list, and is issued to corresponding Smallcell;
Smallcell reconfigures Neighboring Cell List after receiving adjacent area renewal list.
See Fig. 5, also disclose Smallcell working frequency points of the present invention and BSIC self-optimizing flow process, the method comprises the following steps:
Centralized-control center arranges working frequency points and BSIC and optimizes timer, after setting duration arrives, issues working frequency points and the request of BSIC Optimizing Queries to SmallcellA;
When SmallcellA receives working frequency points and the request of BSIC Optimizing Queries of centralized-control center, working frequency points and BSIC is reported to optimize demand to centralized-control center;
When centralized-control center receives working frequency points and the BSIC optimization demand of SmallcellA, according to predetermined criterion, execution work frequency and BSIC self-optimizing flow process, export the new working frequency points of SmallcellA and BSIC, and issue new working frequency points and BSIC to SmallcellA;
SmallcellA reconfigures after receiving new working frequency points and BSIC information, uses new working frequency points and BSIC.
Although shown exemplary embodiments more of the present invention above, but it should be appreciated by those skilled in the art that, when not departing from principle of the present invention or spirit, can make a change these exemplary embodiments, scope of the present invention is by claim and equivalents thereof.
Claims (12)
1. a Smallcell scale group network system, is characterized in that, comprising: multiple Smallcell, centralized-control center and Smallcell gateway, and each described Smallcell is all connected with described Smallcell gateway by described centralized-control center;
Described each Smallcell, for intercepting the signal of its peripheral cell, and the mode that its intercepted result optimizes demand with neighboring BS information or cell parameter is reported described centralized-control center, and for receiving and the cell parameter using centralized-control center to issue;
Described centralized-control center, for receiving and processing neighboring BS information that each Smallcell reports or cell parameter optimizes demand, and perform centralized self-configuring and self-optimizing flow process, the Smallcell for correspondence issues corresponding cell parameter;
Wherein, described neighboring BS information comprises the frequency of neighbor base station, BSIC or PCI, cell ID and received signal strength, described cell parameter comprises Neighboring Cell List, working frequency points, BSIC or PCI and transmitting power, and described cell parameter is optimized demand and comprised optimizing neighbor list demand, working frequency points optimization demand, BSIC or PCI optimization demand and transmitting power optimization demand.
2. Smallcell scale group network system according to claim 1, it is characterized in that, each described Smallcell sets up a first ipsec security tunnel respectively with described centralized-control center, described centralized-control center also sets up a second ipsec security tunnel with Smallcell gateway, described first ipsec security tunnel and the second ipsec security tunnel are conducted.
3. Smallcell scale group network system according to claim 1 and 2, is characterized in that, described each Smallcell comprises the detection module, reporting module and the receiver module that connect successively; Described detection module for intercepting the cell signal around this Smallcell, and exports the neighboring BS information of this Smallcell and cell parameter optimizes demand to described reporting module; Described reporting module is used for that the neighboring BS information of detection module output or cell parameter are optimized demand and reports to centralized-control center; Described receiver module is for receiving and processing cell parameter that centralized-control center issues and make it to come into force in real time.
4. Smallcell scale group network system according to claim 1 and 2, is characterized in that, described centralized-control center comprises Secure Access Modules, self-configuring/self-optimizing module, and routing module; Described Secure Access Modules is used for building the first corresponding ipsec security tunnel, the second ipsec security tunnel to described Smallcell, described Smallcell gateway, described self-configuring/self-optimizing module is for receiving the neighboring BS information and cell parameter optimization demand that report with treatment S mallcell, perform self-configuring and self-optimizing flow process, export corresponding cell parameter to Smallcell; Described routing module, for building transmission channel between described Smallcell and described Smallcell gateway.
5. Smallcell scale group network system according to claim 4, it is characterized in that, described Secure Access Modules comprises interconnective secure accessing service end and secure accessing client, described secure accessing service end is used for setting up an independently first ipsec security tunnel respectively with Smallcell described in each, and described secure accessing client is used for setting up a second ipsec security tunnel with described Smallcell gateway.
6. Smallcell scale group network system according to claim 4, it is characterized in that, described self-configuring/communicate with continuous print interactive protocol between self-optimizing module with each Smallcell, by the mode of asking and respond, complete the reciprocal process of whole information, and described self-configuring/keep heartbeat to be connected between self-optimizing module with each Smallcell.
7. a Smallcell, it can be connected to Smallcell gateway by centralized-control center, it is characterized in that, comprise the detection module, reporting module and the receiver module that connect successively, described detection module is used for intercepting the cell signal around this Smallcell, exports neighboring BS information and cell parameter optimization demand; Described reporting module is used for that the neighboring BS information of detection module output or cell parameter are optimized demand and reports to centralized-control center; Described receiver module is for receiving and processing cell parameter that centralized-control center issues and make it to come into force in real time, and wherein, described cell parameter comprises Neighboring Cell List, working frequency points, BSIC or PCI and transmitting power.
8. a centralized-control center, it is for being connected with multiple Smallcell and Smallcell gateway, it is characterized in that, this centralized-control center is used for setting up the first corresponding ipsec security tunnel and the two the first ipsec security tunnels to each Smallcell and Smallcell gateway, and realizes the secure accessing of each Smallcell and the convergence/distribution of data.
9. a Smallcell scale network-building method, comprises multiple Smallcell, centralized-control center and Smallcell gateway, it is characterized in that, comprise the following steps: described centralized-control center and described Smallcell gateway set up the second ipsec security tunnel; During each Smallcell electrifying startup, all set up a first ipsec security tunnel with centralized-control center, and then be connected and access carrier network with the second ipsec security tunnel of described Smallcell gateway by its first ipsec security tunnel.
10. Smallcell scale network-building method according to claim 9, it is characterized in that, the electrifying startup step of described each Smallcell comprises: each described Smallcell is when electrifying startup, all intercept the signal of its peripheral cell, obtain neighboring BS information and report to centralized-control center, described centralized-control center receives, process described neighboring BS information, and for this Smallcell configures its cell parameter and make this Smallcell power on this cell parameter, , wherein, described neighboring BS information comprises the frequency of neighbor base station, BSIC or PCI, cell ID and received signal strength, described cell parameter comprises Neighboring Cell List, working frequency points, BSIC or PCI, and transmitting power.
11. want the Smallcell scale network-building method described in 10 according to right, it is characterized in that, when the internal clocking being also included in centralized-control center reaches the time that its internal zone parameter self-optimizing timer presets, the Smallcell worked on power is carried out to the step of self-optimizing, this self-optimizing step comprises:
Described centralized-control center issues cell parameter self-optimizing request to Smallcell;
Smallcell reports its cell parameter to optimize demand to centralized-control center;
Described centralized-control center is optimized demand according to the cell parameter of Smallcell and is performed cell parameter configuration flow and output in corresponding Smallcell.
12. Smallcell scale network-building methods according to claim 10, it is characterized in that, the step of carrying out self-optimizing after the time that the timer that the internal clocking being also included in Smallcell arrives its inside sets, this self-optimizing step comprises: described Smallcell powers on and sets up community, and after the time of timer setting that the internal clocking of Smallcell arrives its inside, intercept to obtain up-to-date neighboring BS information to its peripheral cell signal, judge whether that there is cell parameter optimizes demand, and there is when cell parameter optimizes demand reporting subdistrict parameter optimization demand to centralized-control center, after centralized-control center receives the cell parameter optimization demand that this Smallcell reports, according to predetermined criterion, perform cell parameter self-optimizing flow process, and output in corresponding Smallcell.
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