CN101594622B - Method, device and system for detecting dormant cell - Google Patents
Method, device and system for detecting dormant cell Download PDFInfo
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- CN101594622B CN101594622B CN2009100535000A CN200910053500A CN101594622B CN 101594622 B CN101594622 B CN 101594622B CN 2009100535000 A CN2009100535000 A CN 2009100535000A CN 200910053500 A CN200910053500 A CN 200910053500A CN 101594622 B CN101594622 B CN 101594622B
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Abstract
The invention relates to the technical field of communication, and in particular provides a method, a device and a system for detecting a dormant cell. The method for detecting the dormant cell comprises the following steps: acquiring a key performance index (KPI) correlative with user access in a cell; if the acquired KPI is detected to satisfy the preset dormant cell KPI condition, determining the cell as the dormant cell; and if the cell is determined as the dormant cell, generating a dormant cell warning alarm so as to detect the dormant cell quickly and accurately.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of detection method, device and system of dormant cell.
Background technology
WCDMA (Wideband Code Division Multiple Access, the Wideband Code Division Multiple Access (WCDMA) access) system is made up of 3 parts, be core net (Core Network, CN), RNS (RadioNetwork Subsystem, RNS) and subscriber equipment (User Equipment, UE).RNS comprises radio network controller, and (Radio Network Controller is RNC) with two functional entitys of base station node B.RNC links to each other with CN by the Iu interface, and RNC is used for distributing and controlling the Radio Resource of Node B associated therewith.Node B is the base station of WCDMA system, links to each other with RNC by Iub interface, and Node B then finishes the conversion of the data flow between Iub interface and the Uu interface (wave point), also participates in a part of RRM simultaneously.UE is a subscriber terminal equipment, is undertaken alternately by Uu interface and Node B.If the sub-district at UE place belongs to the coverage of certain base station, all states of sub-district are normal, do not have base station alarm, but all or most of channel/resources are unavailable in the sub-district, promptly this sub-district be dormant cell (Sleeping Cell, SLC), this moment, the user did not get through phone, and satisfaction reduces.
In realizing process of the present invention, the inventor finds:
In the prior art, also do not have good solution, can detect dormant cell.
Summary of the invention
The embodiment of the invention is to provide a kind of detection method, device and system of dormant cell, can detect dormant cell fast and accurately.
The embodiment of the invention is achieved through the following technical solutions:
One embodiment of the invention provides a kind of detection method of dormant cell, and this method comprises:
Obtain in the sub-district and insert relevant Key Performance Indicator KPI with the user;
Satisfy default dormant cell KPI condition if detect the described KPI that obtains, determine that described sub-district is a dormant cell;
If determine that described sub-district is a dormant cell, generate the dormant cell alarm.
Another embodiment of the present invention also provides a kind of checkout gear of dormant cell, and this checkout gear comprises: acquiring unit is used for obtaining the sub-district and inserts relevant Key Performance Indicator KPI with the user; Detecting unit, whether the described KPI that is used for obtaining by detection satisfies default dormant cell KPI condition, determines whether described sub-district is dormant cell; Alarm generation unit, the testing result that is used for described detecting unit are described sub-district when being dormant cell, generate the dormant cell alarm; Recover analytic unit, whether the KPI that is used to analyze described sub-district satisfies the dormant cell that is provided with is recovered thresholding, recovers if testing result, is then judged described sub-district for being.
Another embodiment of the present invention also provides a kind of detection system of dormant cell, comprises the checkout gear of above-mentioned dormant cell.
As can be seen from the above technical solutions, obtain with the user and insert relevant Key Performance Indicator KPI, refer to KPI mark and the testing conditions that satisfies dormant cell that is provided with in conjunction with key performance, when detected cells is dormant cell, the alarm of generation dormant cell, thus realized fast and accurately dormant cell being detected.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The detection method flow chart of the dormant cell that Fig. 1 provides for one embodiment of the invention;
Fig. 2 is for detecting the method flow diagram of the number of times that receives wireless resource control connection request message;
Fig. 3 is the method flow diagram that the Radio Resource control connection is set up successful number of times in the detected cells;
Fig. 4 sets up the method flow diagram of number of times for the Radio Resource control connection of initiating in the detected cells;
Fig. 5 sets up the method flow diagram of number of times for radio bearer in the detected cells;
Fig. 6 sets up the method flow diagram of number of success for radio bearer in the detected cells;
The detection method flow chart of the dormant cell that Fig. 7 provides for an embodiment of the present invention;
The checkout gear schematic diagram of the dormant cell that Fig. 8 provides for further embodiment of this invention;
The checkout gear schematic diagram of the dormant cell that Fig. 9 provides for yet another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, the scope that all belongs to the present invention and protected.
In order to make those skilled in the art be more readily understood technical scheme of the present invention, at first technical solution of the present invention is briefly described below.
Detect the every Key Performance Indicator relevant,, when determining that the sub-district is dormant cell, generate the dormant cell alarm in conjunction with the condition that satisfies dormant cell of Key Performance Indicator and setting with access.For the sub-district that is defined as dormant cell, if in the time period that is provided with, do not meet the condition that satisfies dormant cell of setting, then recover to analyze, whether the Key Performance Indicator that detects this sub-district satisfies the dormant cell that is provided with is recovered thresholding, if testing result, is then judged this sub-district for being and is recovered.
Below the embodiment of the invention is elaborated:
Referring to Fig. 1, be the dormant cell detection method flow chart that the embodiment of the invention one provides, described method comprises:
S101: obtain in the sub-district and insert relevant Key Performance Indicator KPI with the user.
Wherein, Key Performance Indicator comprises KPI: the radio resource controller (RRC that radio network controller receives, Radio Resource Control) number of times of connection request message, and/or the sub-district receives total bandwidth power, and/or RRC connects the successful number of times of foundation in the sub-district, and/or the number of times of initiating RRC connection foundation in the sub-district, and/or in the sub-district radio bearer (Radio Bearer RB) sets up number of times, and/or RB sets up number of success in the sub-district, and/or the directed retry number of times is set up in the RRC connection, and/or RB sets up the directed retry number of times, and/or RB sets up the directed retry number of success; And/or sub-district duration of unavailability.
S102: judge whether the KPI that (or title detects) obtains satisfies default dormant cell KPI condition, if, determine that the sub-district is a dormant cell, carry out S103.
Wherein, the KPI that obtains satisfies default dormant cell KPI condition, comprises at least one among the following A to D:
A, the KPI that obtains comprise: when sub-district down state duration was connected the number of times of setting up with the radio resource control RRC of initiating in described sub-district, this KPI that obtains satisfied default dormant cell KPI condition, comprising:
Sub-district down state duration equals 0; And the RRC that initiates in the inherent described sub-district of current detection cycle connects the number of times of setting up and is less than or equal to the first default thresholding; And in the current detection cycle with the inherent described sub-district of sense cycle before in the RRC that initiates is connected the number of times of setting up difference greater than preset second threshold, and the number of times of the RRC connection foundation of initiating in the inherent described sub-district of sense cycle before is greater than first thresholding;
Perhaps, down state duration in sub-district equals 0; And the RRC that initiates in the inherent described sub-district of continuous a plurality of sense cycle (can be the Preset Time section) connects the number of times of setting up and is 0.
B, the KPI that obtains comprise: the number of times of RRC connection request message is connected with RRC when setting up successful number of times, and this described KPI that obtains satisfies default dormant cell KPI condition, comprising:
The RRC that initiates in the inherent described sub-district of current detection cycle connects the number of times of foundation more than or equal to the first default thresholding; And the RRC connection is created as power less than the 3rd default thresholding in the sub-district;
Wherein, RRC connects the number of times that is created as power=number of times/RRC connection request message that RRC connection foundation is successful.
C, the KPI that obtains comprise: when radio bearer RB set up number of success and RB and sets up number of times, the described KPI that obtains satisfied default dormant cell KPI condition, comprising:
The number of times that RB sets up in the sub-district in the current detection cycle is greater than the 4th default thresholding, and RB is created as power less than the 5th default thresholding in the sub-district;
Wherein, RB is created as power=RB and sets up number of success/RB and set up number of times.
D, KPI comprise: when RB set up directed retry number of times and RB and sets up the directed retry number of success, the described KPI that obtains satisfied default dormant cell KPI condition, comprising:
RB sets up the directed retry number of times greater than the 6th default thresholding in the interior sub-district of current detection cycle, and RB sets up the directed retry success rate less than the 7th default thresholding in the sub-district;
Wherein, RB sets up directed retry success rate=RB and sets up directed retry number of success/RB and set up the directed retry number of times.
S103: generate the dormant cell alarm.
In the present embodiment, the process that RNC obtains KPI is as follows:
(1), detects the method flow diagram of the number of times that receives RRC connection request message for RNC referring to Fig. 2.
Measurement index
VS.RRC.AttConnEstab
Implication
This index is the number of times that this RNC of RNC statistics receives RRC connection request (CONNECTION REQUEST) message that UE sends.UE needs to initiate the RRC connection request to RNC when attempting access network at every turn, and in fact a UE in order to improve the probability of connection, may send repeatedly RRC connection request message when initiation RRC connection is set up.Each RNC receives that RRC connection request message all will add up VS.RRC.AttConnEstab one time.
Measurement point
Shown in A point among Fig. 2, when receiving wireless resource control connection request (RRCCONNECTION REQUEST) message from UE, adds up RNC this index.
(2), connect the method flow diagram of setting up successful number of times for RRC in the RNC detected cells referring to Fig. 3.
Measurement index
VS.RRC.SuccConnEstab.Cell
Implication
This index is that the interior RNC of the UE place cell range of RNC statistics receives that the RRC that UE returns connects the number of times of setting up successfully (RRC CONNECTION SETUP COMPLETE) message.
Measurement point
Shown in A point among Fig. 3, RNC receives the RRC that UE returns and connects when setting up successfully (RRCCONNECTION SETUP COMPLETE) message, adds up this index according to the sub-district at UE place.
(3) referring to Fig. 4, for the RRC that initiates in the RNC detected cells connects the method flow diagram of setting up number of times.
Measurement index
VS.RRC.SetupConnEstab
Implication
This index is that the interior RNC of the UE place cell range of RNC statistics receives from sending the number of times that the Radio Resource control connection is set up message to UE after the RRC wireless resource control connection request message of UE.
Measurement point
Shown in A point among Fig. 4, after RNC receives wireless resource control connection request message from UE, initiate the RRC connection building process, after the success of network side associative operation, RNC sends the Radio Resource control connection to UE and sets up message, at this moment adds up this index according to the sub-district at UE place.When RNC received the wireless resource control connection request message of UE repeating transmission, RNC can repeat to send the Radio Resource control connection to UE and set up message, but at this moment no longer added up the number of times of the Radio Resource control connection foundation of retransmitting.
(4) referring to Fig. 5, for RB in the RNC detected cells sets up the method flow diagram of number of times.
Measurement index
VS.AttRBSetup
Implication
This index is the interior RNC of the UE place cell range of RNC statistics sets up a number of times from (RADIO BEARER SETUP) message to the radio bearer of UE transmission.
Measurement point
Shown in A point among Fig. 5, when RNC when UE sends radio bearer and sets up message, add up this index according to the sub-district at UE place.
(5) referring to Fig. 6, for RB in the RNC detected cells sets up the method flow diagram of number of success.
Measurement index
VS.SuccRBSetup
Implication
This index is that RNC receives that radio bearer that UE sends sets up the number of times of message in the UE place cell range of RNC statistics.
Measurement point
Shown in B point among Fig. 6, when RNC receives that the radio bearer of UE transmission is set up success message, add up this index according to the sub-district at UE place.
(6) directed retry (DRD) number of times is set up in the RB connection
Measurement index
VS.DRD.RB.D2H.AttIn
Implication
This indicator-specific statistics in the sub-district RNC send RB to UE (High Speed Downlink Packet Access, high speed downlink packet inserts) set up or the number of times of reallocation message from DCH (Dedicated Channel, dedicated channel) to HSDPA.
Measurement point
Each sub-district is handled that RB sets up or is added up this index during reprovision from DCH to HSDPA.
(7) directed retry (DRD) number of success is set up in the RB connection
Measurement index
VS.DRD.RB.D2H.SuccIn
Implication
This indicator-specific statistics in the sub-district RNC send to UE that RB sets up or the number of times of the success of reallocation message from DCH to HSDPA.
(8) sub-district down state duration
Measurement index
VS.Cell.UnavailTime.OM
Describe
This index is the unavailable duration length in a sub-district of RNC statistics.
Measurement point
After the sub-district was set up, RNC calculated accumulative total duration of unavailability in sub-district in measuring period.
Detection method to dormant cell shown in Figure 1 is illustrated below:
Dormant cell section detection time (can be understood as sense cycle) is set.In the time of can selecting traffic to hurry, for example, 9:00～17:00 every day of office; Residential block 18:00～23:00 every day etc.
RNC obtains the sub-district according to self configuration data and inserts restriction (sub-district is in and forbids that the user inserts (BAR) state, still allows the user to insert (UNBAR) state; The BAR state forbids that then all new users of sub-district insert, and the UNBAR state allows all new users of sub-district to insert) information.Shown in the flow process that the dormant cell that provides as Fig. 7 detects, when the sub-district is in the UNBAR state, adopts 1. at least one item in 4. to carry out dormant cell and detect, when the sub-district is in the BAR state, adopts and 4. carry out dormant cell and detect.
When below 1. the KPI that obtains being satisfied in 4. any one, determine that the sub-district is that the situation of dormant cell is described.
1. the Key Performance Indicator that obtains of sub-district comprises: the number of times of the wireless resource control connection request message of initiating in sub-district down state duration and the sub-district, determine that the sub-district is that the process of dormant cell is as follows:
When the KPI that obtains satisfies following 4 conditions simultaneously, determine that the sub-district is a dormant cell.
1. the sub-district is in the UNBAR state
2. down state duration in sub-district equals 0
That is: VS.Cell.UnavailTime.OM (SUM)=0
---SUM represents in dormant cell section detection time, corresponding index sum.
The number of times of the RRC connection request message of initiating in the inherent sub-district of current detection cycle be less than or equal to the first default thresholding B (such as, default value can be 10 times)
That is: VS.RRC.AttConnEstab (SUM)＜=B
---SUM represents in dormant cell section detection time, corresponding index sum.
In the current detection cycle with the inherent sub-district of sense cycle before in the difference of number of times of the RRC connection request message initiated greater than preset second threshold, and the number of times of the RRC connection request message of initiating in the inherent sub-district of sense cycle before is greater than first thresholding.For example, before the current slot internal ratio in X days identical time periods RNC receive the RRC connection request message of in the sub-district, initiating number of times difference greater than preset second threshold C (such as, default value can be 80%) and preceding X days identical time periods in the RNC number of times that receives the RRC connection request message of in the sub-district, initiating greater than the first thresholding B (such as, default value can be 10 times).
That is: (VS.RRC.AttConnEstab (Xday)-VS.RRC.AttConnEstab (now))/VS.RRC.AttConnEstab (Xday)＞C﹠amp; ﹠amp; VS.RRC.AttConnEstab (Xday)＞B
Wherein, condition 4 that is: combines difference algorithm and historical KPI for satisfying the condition of Differential Detection in the process that detects, thereby can improve the accuracy that dormant cell detects.
Wherein, down state duration in sub-district adopts (8) the described method among the embodiment one to obtain; RNC receives the RRC connection request message of initiating in the sub-district number of times adopts (1) the described method among the embodiment one to obtain; The number of times of the RRC connection request message of initiating in the inherent sub-district of sense cycle obtains from the historical data base of the Key Performance Indicator of this locality preservation before, the historical data base of this Key Performance Indicator has been preserved nearest a period of time (as one month), the critical index historical data that need quote when detecting dormant cell.
Perhaps, detect following 3 conditions and whether satisfy simultaneously, when satisfying simultaneously, determine that the sub-district is a dormant cell.
1. the sub-district is in the UNBAR state
2. down state duration in sub-district equals 0
That is: VS.Cell.UnavailTime.OM=0
3. the RRC that initiates in the inherent described sub-district of continuous a plurality of Preset Time sections (sense cycle) connects the number of times of setting up and is 0, for example, preceding M (such as, default value can be 72) hour RRC number be 0.
That is: VS.RRC.AttConnEstab (M hour)=0﹠amp; ﹠amp; ...... ﹠amp; ﹠amp; VS.RRC.AttConnEstab (now)=0
2. the Key Performance Indicator that obtains of sub-district comprises: the number of times of the RRC connection request message that RNC receives is connected with RRC sets up successful number of times, determines that the sub-district is that the process of dormant cell is as follows:
Detect following 3 conditions and whether satisfy simultaneously, when satisfying simultaneously, determine that the sub-district is a dormant cell.
1. the sub-district is in the UNBAR state
The number of times that RNC receives the RRC connection request message of initiating in the sub-district in the current detection cycle more than or equal to the first default thresholding B (such as, default value can be 10 times)
That is: VS.RRC.AttConnEstab＞B
3. RRC is created as power less than default the 3rd thresholding D (for example, default value can be 10%) in the sub-district
That is: RRC is created as power (VS.RRC.SuccConnEstab.Cell.Rate)=RRC and connects number of times (the VS.RRC.AttConnEstab)＜D that sets up the RRC connection request message that successful number of times (RRC.SuccConnEstab.sum)/RNC receives in the sub-district
Wherein, the number of times of the RRC connection request message that receives of RNC adopts (1) the described method among the embodiment one to obtain; RRC connects the successful number of times of foundation and obtains by adopting (2) the described method among the embodiment one.
3. the Key Performance Indicator that obtains of sub-district comprises: RB sets up number of success and RB sets up number of times in the sub-district, determines that the sub-district is that the process of dormant cell is as follows:
When detecting following condition and satisfying, determine that the sub-district is a dormant cell.
In the current detection cycle in the sub-district RB set up number of times greater than the 4th default thresholding E (such as, default value can be 10) and RB be created as power less than the 5th default thresholding F (such as, default value can be 10%)
That is: RB sets up number of times (VS.AttRBSetup)＞E﹠amp in the sub-district; ﹠amp; RB is created as power (RBSETUP Success Rate)=RB and sets up that RB sets up number of times (VS.AttRBSetup)＜F in number of success (VS.SuccRBSetup)/sub-district
Wherein, RB sets up number of success and can obtain by (5) among the embodiment one described method in the sub-district; RB sets up number of times and can obtain by (4) among the embodiment one described method in the sub-district.
4. the Key Performance Indicator that obtains of sub-district comprises: RB sets up the directed retry number of times and RB sets up the directed retry number of success, determines that the sub-district is that the process of dormant cell is as follows:
When detecting following condition and satisfying, determine that the sub-district is a dormant cell.
Before in the sense cycle in the sub-district RB (from DCH to HS-DSCH) set up the directed retry number of success (the 6th thresholding be identical with the 4th thresholding E greater than the 6th default thresholding, such as, default value can be 10), and RB (from DCH to HS-DSCH) sets up the directed retry success rate (the 7th thresholding is identical with the 5th thresholding F less than the 7th default thresholding in the sub-district, such as, default value can be 10%).
That is: VS.DRD.RB.D2H.AttIn＞E﹠amp; ﹠amp; RB directed retry success rate (RB DRD SuccessRate)=VS.DRD.RB.D2H.SuccIn/VS.DRD.RB.D2H.AttIn＜F
Wherein, the number of times of RRC connection foundation can obtain by (3) among the embodiment one described method; RB sets up the directed retry number of times and can obtain by (6) among the embodiment one described method; RB sets up the directed retry number of success and can obtain by (7) among the embodiment one described method.
When definite sub-district is a dormant cell, generate the dormant cell alarm, in dormant cell alarm cause row, write the reason of judgement exactly.
To being judged as the sub-district of SLC,, then this sub-district is recovered to analyze according to alarm cause if when in the time period that is provided with, not satisfying the SLC condition.
Analysis time section: every day 0:00～2:00 and 06:00～24:00 (can revise) by client configuration
The concrete analysis process is as follows:
If the SLC alarm cause is in the time period that 1 sub-district is provided with: RRC number of attempt, sub-district down state duration or RRC are created as power, then RNC judge in this time period the RRC number of attempt greater than the 8th thresholding G (such as, default value can be 10 times), and RRC be created as power greater than the 9th thresholding H (such as, default value can be 80%)
Think that then satisfying SLC recovers condition.
If 2 sub-districts SLC alarm cause in the time period that is provided with is that RB is created as power, then RNC judge in this time period RB set up number of attempt greater than the 4th thresholding E (such as, default value can be 10), and RB be created as power greater than the tenth thresholding I (such as, default value can be 80%), think that then satisfying SLC recovers condition.
If 3 sub-districts SLC alarm cause in the time period that is provided with is a RB directed retry success rate, then at this section in the period, D2H DRD number of attempt greater than the 4th thresholding E (such as, default value can be 10) and RB DRD success rate greater than the tenth thresholding I (such as, default value can be 80%), think that then satisfying SLC recovers condition.
If being judged to the reason of SLC, the sub-district has when multiple, then must carry out the judgement of correlated condition, have only when all correlated conditions and all satisfy, think that just this sub-district satisfies the recovery condition, in the reason tabulation of corresponding time of sub-district, fill in recovery, no longer carry out SLC and recover to analyze.
Wherein: above-mentioned thresholding B, C, D, E, F, G, H, I can be set in advance by system, when the testing environment of sub-district changes, the thresholding that relates in the default dormant cell KPI condition are made amendment, to adapt to application scenarios widely.
Present embodiment is when carrying out the dormant cell detection, and each Key Performance Indicator relevant with access all taken into account, and the limitation of having avoided dormant cell to detect makes that detection is more accurate; In addition, can revise the threshold value that relates in the dormant cell KPI condition, detect with the dormant cell that adapts to different traffic model scenes, extensibility is strong.
Referring to Fig. 8, the checkout gear schematic diagram of the dormant cell that provides for another embodiment of the present invention, this device comprises:
Acquiring unit 201 is used for obtaining the sub-district and inserts relevant Key Performance Indicator KPI with the user.
Detecting unit 202, whether the KPI that is used for obtaining by measurement acquisition unit 201 satisfies default dormant cell KPI condition, determines whether described sub-district is dormant cell.
In the present embodiment, KPI comprises: during the number of times of sub-district down state duration and the radio resource control RRC connection request message initiated in described sub-district, detecting unit 202 comprises:
Memory cell is used to preserve the local historical Key Performance Indicator that obtains for acquiring unit 201.For example, preserve nearest a period of time (as one month), local historical Key Performance Indicator.These memory cell 205 heap(ed) capacities are decided on disk storage space, and minimum the needs can preserve for 2 week.
First detection sub-unit, be used for detected cells down state duration and equal 0, and the difference of the number of times of the RRC connection request message that the current detection cycle is interior and initiate from the inherent described sub-district of sense cycle before that described memory cell is obtained is greater than preset second threshold, and when the number of times of the RRC connection request message of initiating in the inherent described sub-district of sense cycle is greater than described first thresholding before, determine that the sub-district is a dormant cell.Perhaps,
Second detection sub-unit is used for detected cells down state duration and equals 0; And the RRC that initiates in the inherent described sub-district of continuous a plurality of sense cycle (can be the Preset Time section) connects the number of times of setting up and is at 0 o'clock, determines that described sub-district is a dormant cell.
In the present embodiment, KPI comprises: the number of times of RRC connection request message is connected with RRC when setting up successful number of times, and detecting unit 202 comprises:
The 3rd detection sub-unit, be used for detecting the number of times of the RRC connection request message of initiating inherent described sub-district of current detection cycle more than or equal to the first default thresholding, and RRC connects when being created as power less than default the 3rd thresholding in the sub-district, determines that the sub-district is a dormant cell;
Wherein, RRC connects the number of times that is created as power=number of times/RRC connection request message that RRC connection foundation is successful.
In the present embodiment, KPI comprises: when radio bearer RB set up number of success and RB and sets up number of times, detecting unit 202 comprised:
The 4th detection sub-unit is used for detecting sub-district RB sets up in the current detection cycle number of times greater than the 4th default thresholding, and when RB is created as power less than default the 5th thresholding in the sub-district, determines that the sub-district is a dormant cell;
Wherein, RB is created as power=RB and sets up number of success/RB and set up number of times.
In the present embodiment, KPI comprises: when RB set up directed retry number of times and RB and sets up the directed retry number of success, detecting unit 202 comprised:
The 5th detection sub-unit is used for detecting the interior sub-district RB of current period and sets up the directed retry number of times greater than the 6th default thresholding, and RB is set up the directed retry success rate less than the 7th default thresholding in the sub-district;
Wherein, RB sets up directed retry success rate=RB and sets up directed retry number of success/RB and set up the directed retry number of times.
Referring to Fig. 9, the checkout gear schematic diagram of the dormant cell that provides for further embodiment of this invention, with respect to embodiment illustrated in fig. 8, this device can also comprise:
Recover analytic unit 301, after being used for detecting unit 202 and detecting detected cells and belong to dormant cell, analyze sub-district KPI in the time period that is provided with and whether satisfy the dormant cell that is provided with and recover thresholding, recover if testing result, is then judged described sub-district for being.
In the present embodiment, the recovery condition of setting is as follows:
Condition 1: if the cause value of SLC is RRC TIMES, NO RRCTIMES, RRC SETUP SUCCES S RATE in this sub-district time period
Judge whether the sub-district recovers, then need to satisfy simultaneously following 2 conditions:
In the current slot RRC number of attempt greater than a thresholding G (such as, default value can be 10 times)
2.RRC be created as power greater than a thresholding H (such as, default value can be 80%)
When above 2 conditions satisfy simultaneously, think that then SLC recovery condition satisfies.
Condition 2: if the sub-district is judged as the former of SLC in the time period because RB SETUP SUCCESSRATE
Judge whether the sub-district recovers, then need to satisfy following 1 condition and get final product:
This section in the period RB set up number of attempt greater than a thresholding E (such as, default value can be 10) and RB be created as power greater than a thresholding I (such as, default value can be 80%).
When condition 2 satisfies, think that then SLC recovery condition satisfies.
Condition 3: if the sub-district is judged as the former of SLC in the time period because radio bearer directed retry success rate (RB DRD SUCCESS RATE).
Judge whether the sub-district recovers, then need to satisfy following 1 condition:
1. at this section in the period, D2H DRD number of attempt greater than a thresholding E (such as, default value can be 10) and RB DRD success rate greater than a thresholding I (such as, default value can be 80%)
When condition 3 satisfies, think that then SLC recovery condition satisfies.
Have when multiple if certain sub-district is judged to the reason of SLC, then must carry out the judgement of correlated condition.Have only when all correlated conditions and all satisfy, think that just this sub-district tentatively satisfies the recovery condition.
Recover condition if N continuous (N is a positive integer) all satisfied SLC in individual hour, think that at this moment this sub-district recovered normal.In case think recovery, will no longer carry out SLC and recover to analyze.
Wherein, above-mentioned thresholding can be set in advance by system, also can open to the attendant and revise, and so that application flexibility to be provided, adapts to scene widely.
Above embodiment owing to when carrying out the detection of dormant cell, judge by a plurality of KPI combinations whether the sub-district is dormant cell, makes that detection is more accurate as can be seen; And the employing Differential Detection combines historical KPI in the process that detects, and has further improved the accuracy that detects; In addition, revise the thresholding that relates in the detection algorithm of the present invention, the dormant cell that can adapt to different traffic model scenes detects, so extensibility is strong.
To replace back substitution dormant cell detection algorithm of the present invention with the similar KPI of the KPI that the embodiment of the invention provides, can also be applicable to GSM (Global System for Mobile Communications, global system for mobile communications), CDMA (Code Division Multiple Access, code division multiple access inserts) system and LTE (Long Term Evolution, Long Term Evolution) system hibernates cell detection.
In addition, the embodiment of the invention also provides a kind of detection system of dormant cell, comprises Fig. 8 any or its combination to device shown in Figure 9.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium.
The above-mentioned storage medium of mentioning can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
More than the embodiment of the invention is described in detail, used specific case herein principle of the present invention and execution mode set forth, the explanation of above embodiment just is used for help understanding method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. the detection method of a dormant cell is characterized in that, described method comprises:
Obtain in the sub-district and insert relevant Key Performance Indicator KPI with the user;
Satisfy default dormant cell KPI condition if detect the described KPI that obtains, determine that described sub-district is a dormant cell;
If determine that described sub-district is a dormant cell, generate the dormant cell alarm;
Whether the KPI that detects described sub-district satisfies the dormant cell that is provided with and recovers thresholding, recovers if testing result, is then judged described sub-district for being.
2. method according to claim 1 is characterized in that,
Described KPI comprises: the number of times of sub-district down state duration and the radio resource control RRC connection request message initiated in described sub-district;
The described described KPI that obtains satisfies default dormant cell KPI condition, comprising:
Sub-district down state duration equals 0; With
The number of times of the RRC connection request message of initiating in the inherent described sub-district of current detection cycle is less than or equal to the first default thresholding; With
In the current detection cycle with the inherent described sub-district of sense cycle before in the difference of number of times of the RRC connection request message initiated greater than preset second threshold, and the number of times of the RRC connection request message of initiating in the inherent described sub-district of sense cycle before is greater than described first thresholding;
Perhaps,
The described described KPI that obtains satisfies default dormant cell KPI condition, comprising:
Sub-district down state duration equals 0; With
The RRC that initiates in the inherent described sub-district of continuous a plurality of sense cycle connects the number of times of setting up and is 0.
3. method according to claim 1 is characterized in that,
Described KPI comprises: the number of times of RRC connection request message is connected with RRC sets up successful number of times;
The described described KPI that obtains satisfies default dormant cell KPI condition, comprising:
The RRC connection request message number of times of initiating in the inherent described sub-district of current detection cycle is more than or equal to the first default thresholding; With
The RRC connection is created as power less than the 3rd default thresholding in the sub-district;
Wherein, RRC connects the number of times that is created as power=number of times/RRC connection request message that RRC connection foundation is successful.
4. method according to claim 1 is characterized in that,
Described KPI comprises: radio bearer RB sets up number of success and RB sets up number of times;
The described described KPI that obtains satisfies default dormant cell KPI condition, comprising:
The number of times that RB sets up in the sub-district in the current detection cycle is greater than the 4th default thresholding, and RB is created as power less than the 5th default thresholding in the sub-district;
Wherein, RB is created as power=RB and sets up number of success/RB and set up number of times.
5. method according to claim 1 is characterized in that,
Described KPI comprises: RB sets up the directed retry number of times and RB sets up the directed retry number of success;
The described described KPI that obtains satisfies default dormant cell KPI condition, comprising:
RB sets up the directed retry number of times greater than the 6th default thresholding in the interior sub-district of current detection cycle, and RB sets up the directed retry success rate less than the 7th default thresholding in the sub-district;
Wherein, RB sets up directed retry success rate=RB and sets up directed retry number of success/RB and set up the directed retry number of times.
6. according to any described method of claim 1 to 5, it is characterized in that described method also comprises:
When the testing environment of described sub-district changes, the thresholding that relates in the default dormant cell KPI condition is upgraded.
7. the checkout gear of a dormant cell is characterized in that, described checkout gear comprises:
Acquiring unit is used for obtaining the sub-district and inserts relevant Key Performance Indicator KPI with the user;
Detecting unit, whether the described KPI that is used for obtaining by detection satisfies default dormant cell KPI condition, determines whether described sub-district is dormant cell;
Alarm generation unit, the testing result that is used for described detecting unit are described sub-district when being dormant cell, generate the dormant cell alarm;
Recover analytic unit, whether the KPI that is used to analyze described sub-district satisfies the dormant cell that is provided with is recovered thresholding, recovers if testing result, is then judged described sub-district for being.
8. device according to claim 7 is characterized in that,
Described KPI comprises: the number of times of sub-district down state duration and the radio resource control RRC connection request message initiated in described sub-district;
Described detecting unit comprises:
Memory cell is used to store local historical Key Performance Indicator;
First detection sub-unit, be used for detected cells down state duration and equal 0, and the difference of the number of times of the RRC connection request message that the current detection cycle is interior and initiate from the inherent described sub-district of sense cycle before that described memory cell is obtained is greater than preset second threshold, and when the number of times of the RRC connection request message of initiating in the inherent described sub-district of sense cycle is greater than described first thresholding before, determine that described sub-district is a dormant cell; Perhaps,
Second detection sub-unit is used for detected cells down state duration and equals 0; And the RRC that initiates in the inherent described sub-district of continuous a plurality of sense cycle connects the number of times of setting up and is at 0 o'clock, determines that described sub-district is a dormant cell.
9. device according to claim 7 is characterized in that,
Described KPI comprises: the number of times of RRC connection request message is connected with RRC sets up successful number of times;
Described detecting unit comprises:
The 3rd detection sub-unit, be used for detecting the number of times of the RRC connection request message of initiating inherent described sub-district of current detection cycle more than or equal to the first default thresholding, and RRC connects when being created as power less than default the 3rd thresholding in the sub-district, determines that the sub-district is a dormant cell;
Wherein, RRC connects the number of times that is created as power=number of times/RRC connection request message that RRC connection foundation is successful.
10. device according to claim 7 is characterized in that,
Described KPI comprises: radio bearer RB sets up number of success and RB sets up number of times;
Described detecting unit comprises:
The 4th detection sub-unit is used for detecting sub-district RB sets up in the current detection cycle number of times greater than the 4th default thresholding, and when RB is created as power less than default the 5th thresholding in the sub-district, determines that the sub-district is a dormant cell;
Wherein, RB is created as power=RB and sets up number of success/RB and set up number of times.
11. device according to claim 7 is characterized in that,
Described KPI comprises: RB sets up the directed retry number of times and RB sets up the directed retry number of success;
Described detecting unit comprises:
The 5th detection sub-unit is used for detecting the interior sub-district RB of current period and sets up the directed retry number of times greater than the 6th default thresholding, and RB is set up the directed retry success rate less than the 7th default thresholding in the sub-district;
Wherein, RB sets up directed retry success rate=RB and sets up directed retry number of success/RB and set up the directed retry number of times.
12., it is characterized in that described device also comprises according to the described device of claim 7 to 11:
The thresholding updating block is used for when the testing environment of described sub-district changes the thresholding that relates in the default dormant cell KPI condition being upgraded.
13. the detection system of a dormant cell is characterized in that, comprises any described device of claim 7 to 12.
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