CN102932813B - Method and device for adjusting cell individual offset (CIO) parameters - Google Patents
Method and device for adjusting cell individual offset (CIO) parameters Download PDFInfo
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- CN102932813B CN102932813B CN201110228692.1A CN201110228692A CN102932813B CN 102932813 B CN102932813 B CN 102932813B CN 201110228692 A CN201110228692 A CN 201110228692A CN 102932813 B CN102932813 B CN 102932813B
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Abstract
The invention discloses a method and a device for adjusting cell individual offset (CIO) parameters and is applicable to improvement of the adjustment accuracy and efficiency of the CIO parameters in second-generation/third-generation (2/3G) interoperation. The method for adjusting the CIO parameters comprises the following steps of: acquiring a traffic load ratio of each inter-system neighbor cell of a service cell which is connected with a user terminal in a current counting cycle; if the traffic load ratio of the inter-system neighbor cell exceeds a preset load ratio threshold, determining that the corresponding CIO adjustment amount of the inter-system neighbor cell in the current counting cycle is negative; if the traffic load ratio of the inter-system neighbor cell does not exceed the preset load ratio threshold, determining that the corresponding CIO adjustment amount of the inter-system neighbor cell in the current counting cycle is positive; and determining that a corresponding CIO value of the inter-system neighbor cell in the current counting cycle is a sum of a corresponding CIO initial value of the inter-system neighbor cell and the corresponding CIO adjustment amount of the inter-system neighbor cell.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of CIO parameter determination method and device.
Background technology
Along with the development of mobile communication technology, different system mobile communications network coexists phenomenon ubiquity, such as, the scene that gsm system and TD-SCDMA system coexist, when the serving cell quality of user terminal access declines, in order to improve the business experience of user, the business that user terminal is using by prior art support switches to different system adjacent cell.
At present, between different system adjacent cell, business switching is triggered by 3A event, namely the estimated quality of the frequency of the Serving cell of the current access of user terminal is lower than a certain handoff threshold value, and the estimated quality of the frequency of the different system adjacent cell of this Serving cell is higher than a certain handoff threshold value, namely this Serving cell meets trigger condition:
the different system adjacent cell of this Serving cell meets trigger condition:
and lasting duration reaches default time-lag (TimeToTrig) duration, will activated user terminal to report 3A event.Wherein, Qused represents the Primary Common Control Physical Channel (PCCPCH of Serving cell, Primary Common Control PhysicalChannel) received signal code power (RSRP, Received Signal Code Power) measured value, Tused is the handoff threshold value of native system and Serving cell; H3a is the power bias of the different system adjacent cell of native system community and Serving cell and this Serving cell; MotherRAT represents the Broadcast Control Channel (BCCH of the different system adjacent cell of this Serving cell, Broadcast Control Channel) received signal strength indicator (RSSI of frequency, Receiving Signal Strength) measured value, TotherRAT is the handoff threshold value of different system adjacent cell; CIO represents that Serving cell is the cell individual offsets that different system adjacent cell is arranged, and above each parameter is called 23G interoperability parameter.
From above-mentioned trigger condition, for different system adjacent cell, when judging whether that will carry out business switches, only considered the RSSI level value of different system adjacent cell, as long as the RSSI level value of this different system adjacent cell meets trigger condition, the business migration that user terminal will used is to this different system adjacent cell, may cause like this business migration that user terminal is being used to telephone traffic the high and different system adjacent cell that load is high, if particularly by data service migration to telephone traffic during the high and different system adjacent cell that load is high, significant performance hit will be brought to different system adjacent cell, the network performance of different system adjacent cell is declined, therefore, business handover trigger mechanism in existing 23G interoperability is also unreasonable.
In order to solve the problem, above-mentioned 23G interoperability parameter is adjusted according to the experience of self mainly through network maintenance staff in prior art, reduce the impact on GSM adjacent area when business switches, as shown in Figure 1, for the schematic flow sheet that network maintenance staff adjusts 23G interoperability parameter, comprise the steps:
S101, collection 23G Interoperability data;
Concrete, network maintenance staff gathers drive test data, operation maintenance center (OMC, Operations & Maintenance Center) statistics, backstage signaling data and customer complaint data etc.
S102, analysis collect 23G Interoperability data;
Concrete, the 23G that network maintenance staff analyzes drive test data switches anomalous event, the reason of 23G handoff failure in OMC statistics, and 23G interoperability exceptional signaling etc., and determine the community that there is 23G Interoperability accordingly.
S103, adjustment 23G interoperability parameter;
Concrete, network maintenance staff is according to the analysis result obtained in step S102, and the experience in conjunction with self adjusts 23G interoperability parameter, comprises Tused, TotherRAT, H3a, TimeToTrig and CIO etc.
Wherein, in 23G interoperability parameter, individual offset (CIO, Cell Individual Offset) arrange for self different system adjacent cell for the Serving cell of user terminal access, that is Serving cell can be arranged respectively to its each different system adjacent cell, and CIO parameter is present in man-to-man Serving cell and different system adjacent cell relation.For each different system adjacent cell, a CIO value is all distributed with in-band signalling in Serving cell, CIO can be set on the occasion of, also negative value can be set to, user terminal is when whether the RSSI assessing different system adjacent cell BCCH frequency meets trigger condition, CIO is joined in measured value simultaneously, thus have impact on the condition of 3A event triggering.CIO unit is dB, during in order to carry out business switching in 23G interoperability, prevent the RSSI level value of different system adjacent cell too low, therefore, CIO for forward migration defines its higher limit, and during in order to avoid carrying out business switching in 23G interoperability, triggering too difficulty, the CIO for negative offset defines its lower limit, such as, its span can be [-25,25], in practical application, according to the actual coverage condition of network, CIO threshold value can adjust, and general value is [-12,12].For a certain different system adjacent cell, as shown in Figure 2, for CIO affects schematic diagram to the rssi measurement value of the BCCH frequency of different system adjacent cell.
According to Fig. 2, if different system adjacent cell configure one on the occasion of CIO, the RSSI value of the BCCH frequency of user's terminal evaluates will be made to increase, the RSSI level value of this different system adjacent cell will meet trigger condition in advance, as the T1 in Fig. 2, therefore, CIO is on the occasion of larger, and the probability being switched to this different system adjacent cell is larger; If different system adjacent cell configures the CIO of a negative value, the RSSI value of the BCCH frequency of user's terminal evaluates will be made to reduce, and the RSSI level value of this different system adjacent cell meets trigger condition by delayed, as the T2 in Fig. 2, therefore, CIO negative value is less, and the probability being switched to this different system adjacent cell is less.It can thus be appreciated that, for different different system adjacent cell, for it gives different CIO values, these different system adjacent cell of change are selected as the probability of target adjacent area.
Therefore, when to the parameter adjustment of 23G interoperability, network maintenance staff mainly adjusts CIO parameter, to change the probability that different system adjacent cell is selected as target adjacent area.
S104, judge whether 23G Interoperability solves, if so, perform step S105, otherwise perform step S101;
Concrete, network maintenance staff, by observing the situation of change of drive test data, KPI Key Performance Indicator (KPI, KeyPerformance Indicator) and customer complaint, determines whether 23G problem solves.
S105, flow process terminate.
But above-mentioned solution, network maintenance staff adjusts CIO parameter according to the experience of self, this depends on the subjective experience of network maintenance staff, and the performance data after the adjustment by observing communication network judges whether 23G Interoperability solves, if problem not yet solves, still need to continue to adjust CIO parameter value, until 23G Interoperability solves, like this, make the accuracy and efficiency of CIO parameter adjustment lower.
Summary of the invention
The embodiment of the present invention provides a kind of method and device that in 23G interoperability, business switches, and during in order to carry out business switching in 23G interoperability, improves the accuracy and efficiency of CIO parameter adjustment.
The embodiment of the present invention provides a kind of CIO parameter regulation means, comprising:
For each different system adjacent cell of the Serving cell of user terminal access, obtain the traffic load ratio of this different system adjacent cell in the current statistic cycle;
If the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determine that the cell individual offsets CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell is negative value, if the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of;
Adjusting CIO value corresponding to described different system adjacent cell is the CIO adjustment amount sum that the CIO initial value corresponding within the current statistic cycle of described different system adjacent cell is corresponding within the current statistic cycle with described different system adjacent cell.
The embodiment of the present invention provides a kind of CIO parameter adjustment controls, comprising:
Obtain unit, for each the different system adjacent cell of Serving cell access for user terminal, obtain the traffic load ratio of current statistic cycle this different system adjacent cell interior;
Determining unit, for when the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determine that the cell individual offsets CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell is negative value, when the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of;
Adjustment unit is the CIO adjustment amount sum that the CIO initial value corresponding within the current statistic cycle of described different system adjacent cell is corresponding within the current statistic cycle with described different system adjacent cell for adjusting CIO value corresponding to described different system adjacent cell.
The CIO parameter regulation means that the embodiment of the present invention provides and device, when carrying out business switching in 23G interoperability, according within the current statistic cycle, the traffic load ratio of the different system adjacent cell of the Serving cell of the current access of user terminal, adjust the CIO parameter of different system adjacent cell, when the traffic load ratio of different system adjacent cell exceedes default duty ratio threshold value, determine that CIO adjustment amount corresponding to this different system adjacent cell is negative value, when the traffic load ratio of different system adjacent cell is no more than default duty ratio threshold value, determine CIO adjustment amount corresponding to this different system adjacent cell on the occasion of, like this, situation can be compared according to the traffic load of different system adjacent cell, make this different system adjacent cell in advance or delayedly meet trigger condition, because above-mentioned CIO parameter tuning process is without the need to relying on the subjective experience of network maintenance staff, thus improve the accuracy and efficiency of CIO parameter adjustment.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Fig. 1 is in prior art, to the schematic flow sheet that 23G interoperability parameter adjusts;
Fig. 2 is in prior art, and CIO affects schematic diagram to the rssi measurement value of the BCCH frequency of different system adjacent cell;
Fig. 3 is in the embodiment of the present invention, the implementing procedure schematic diagram of CIO parameter regulation means;
Fig. 4 is in the embodiment of the present invention, the structural representation of CIO parameter adjustment controls.
Embodiment
During in order to carry out business switching in 23G interoperability, improving the accuracy and efficiency of CIO parameter adjustment, embodiments providing a kind of CIO parameter regulation means and device.
Below in conjunction with Figure of description, the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein is only for instruction and explanation of the present invention, be not intended to limit the present invention, and when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
The Serving cell that the embodiment of the present invention relates to can be the community of arbitrary network standard, and the different system adjacent cell of this Serving cell can be the community of other arbitrary network standard beyond the network formats of taking off mourning clothes described in business community.For the ease of understanding, be TD-SCDMA community be example in the embodiment of the present invention with Serving cell, different system adjacent cell is described for GSM community.
As shown in Figure 3, be the CIO parameter regulation means implementing procedure schematic diagram that the embodiment of the present invention provides, comprise the steps:
S301, each different system adjacent cell of Serving cell for user terminal access, obtain the traffic load ratio of this different system adjacent cell in the current statistic cycle;
S302, judge that whether the traffic load of this different system adjacent cell within the current statistic cycle than exceedes default duty ratio threshold value, if so, perform step S303, if not, perform step S304;
Preferably, traffic load can be set to 2% than threshold value.
S303, determine that the CIO adjustment amount corresponding within the current statistic cycle of this system adjacent cell is negative value, and perform step S305;
S304, determine the CIO adjustment amount corresponding within the current statistic cycle of this system adjacent cell on the occasion of;
S305, to adjust this different system adjacent cell CIO value corresponding within the current statistic cycle be the CIO adjustment amount sum that CIO initial value corresponding to this different system adjacent cell is corresponding within the current statistic cycle with this different system adjacent cell.
In concrete enforcement, because the traffic load of different system adjacent cell constantly changed along with the time, but in measurement period, there is traffic peak period, by the traffic load ratio of the traffic peak different system adjacent cell in period in the contrast current statistic cycle, foundation can be provided for the setting of the CIO value of different system adjacent cell.Usually, measurement period is set to 24 hours, in order to improve the effect of CIO adjustment, when specifically implementing, measurement period can be divided into early busy and two time periods of late busy, determine the traffic load situation of two time periods respectively, and accordingly in a measurement period, twice adjustment is carried out to the CIO value of different system adjacent cell, can certainly be according to actual needs, measurement period is divided into multiple time period, in each measurement period, the CIO value of different system adjacent cell is repeatedly adjusted.For convenience of description, be all once adjusted to example with CIO parameter corresponding to different system adjacent cell in a measurement period in following embodiment to be described.
In concrete enforcement, can obtain within the current statistic cycle according to following process, the traffic load ratio of the arbitrary different system adjacent cell of the Serving cell of user terminal access:
Step 1, obtain within the current statistic cycle, the traffic bearing capacity of the Serving cell of user terminal access and described Serving cell are to the switching ratio of this different system adjacent cell;
Concrete, within the current statistic cycle, the traffic bearing capacity of Serving cell can extract according to from the OMC (operation maintenance center) of this Serving cell; And obtain Serving cell to the switching ratio of different system adjacent cell, can comprise the steps:
Step 11, obtain within the current statistic cycle, Serving cell is to the number of times of different system adjacent cell business handover success, and the response times of Serving cell;
Step 12, determine that Serving cell to the switching ratio of different system adjacent cell within the current statistic cycle is: Serving cell is to the ratio of the different number of times of system adjacent cell business handover success and the response times of described Serving cell.
Concrete, if use R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle, then
Wherein, in step 11, can from the OMC of Serving cell, be extracted in the current statistic cycle, the handover success number of times of Serving cell each different system adjacent cell to it and the response times of this Serving cell, wherein, the response times of Serving cell comprise Serving cell to different system adjacent cell handover success and handoff failure and Serving cell the response times sum to homologous ray adjacent area handover success and handoff failure.
Step 2, obtain the traffic bearing capacity of this different system adjacent cell within the current statistic cycle, Traffic Channel TCH congestion ratio, and be adjacent area with this different system adjacent cell, with the quantity of the homologous ray community of Serving cell homologous ray;
Concrete, for each different system adjacent cell of current service cell, the traffic bearing capacity of this different system adjacent cell within the current statistic cycle, Traffic Channel (TCH is obtained from the OMC of this different system adjacent cell, the TCH congestion ratio of this different system adjacent cell included in congestion information TrafficChannel), and be adjacent area with this different system adjacent cell, with the quantity of the homologous ray community of Serving cell homologous ray.
Step 3, determine the congested telephone traffic of this different system adjacent cell within the current statistic cycle according to the TCH congestion ratio of this different system adjacent cell;
Concrete, determine the congested telephone traffic of this different system adjacent cell within the current statistic cycle according to following formula:
wherein: Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle; Ec
jrepresent the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle; C
jrepresent the congestion ratio of this different system adjacent cell j within the current statistic cycle.
Step 4, to determine the traffic load ratio of this different system adjacent cell within the current statistic cycle according to following formula:
wherein: L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle; Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle; Ec
iand Ec
jrepresent Serving cell i and the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle respectively; R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle; N
jto represent all be adjacent area with this different system adjacent cell j, with the quantity of the homologous ray community of Serving cell homologous ray.
In concrete enforcement, in step S303, can determine within the current statistic cycle according to following steps, traffic load is than the CIO adjustment amount Δ CIO of different system adjacent cell exceeding default duty ratio threshold value:
Step 1, determine within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value;
Concrete, suppose have the traffic load ratio of n different system adjacent cell to exceed default duty ratio threshold value L
t.
Step 2, by all traffic loads than the different system adjacent cell exceeding default duty ratio threshold value, sort than descending order according to traffic load;
Concrete, n traffic load is compared L than the different system adjacent cell exceeding default duty ratio threshold value according to traffic load
jdescending order sorts, and obtains the sequence after sorting to be: and G1, G2, G3 ... Gn}, and with Δ CIO
k(k=1,2 ..., n) represent the CIO adjustment amount that different system adjacent cell is corresponding;
Step 3, the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell exceeding default duty ratio threshold value;
Concrete, determine that sequence sequence number that G1 is corresponding be the sequence sequence number that 1, G2 is corresponding is 2, the like, the sequence number that Gn is corresponding is n.
Step 4, determine that the CIO adjustment amount corresponding within the current statistic cycle of different system adjacent cell is :-(n-p+1) * CIOste, p is wherein: n is within the current statistic cycle, and all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value; P is sequence sequence number corresponding to this different system adjacent cell; CIOstep is that default CIO adjusts step-length.
In concrete enforcement, the formula provided according to step 4 determines each traffic load, and the CIO adjustment amount more corresponding within the current statistic cycle than the different system adjacent cell exceeding default duty ratio threshold value is: Δ CIO
1=-n*CIOstep; Δ CIO
2=-(n-1) * CIOstep; Δ CIO
n=-1*CIOstep.Preferably, CIOstep can be set to 0.5dB.
During concrete enforcement, in order in m the different system adjacent cell that traffic load is smaller, select suitable different system adjacent cell to carry out business switching, in the embodiment of the present invention, select in conjunction with the handover success rate of Serving cell to different system adjacent cell.That is, when the traffic load of different system adjacent cell is lower, and Serving cell higher to the handover success rate of this different system adjacent cell time, just likely be selected as the target adjacent area that business switches, like this, the different system adjacent cell that between the business migration that used by user terminal to Serving cell, handover success rate is high can be ensured.
Based on this, in step s 304, the CIO adjustment amount Δ CIO that can to determine traffic load in accordance with the following steps more corresponding within the current statistic cycle than the different system adjacent cell being no more than default duty ratio threshold value:
Step 1, determine within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value;
Concrete, suppose have the traffic load of m different system adjacent cell to compare L
jbe no more than default duty ratio threshold value L
t.
Step 2, for each traffic load than the different system adjacent cell being no more than default duty ratio threshold value, according to the traffic load ratio of the handover success rate between Serving cell and this different system adjacent cell and different system adjacent cell, determine the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle;
Concrete, can determine according to following formula the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle:
P
j=α * (1-H
ij)+β * L
j, wherein: P
jrepresent parameters sortnig value; H
ijrepresent within the current statistic cycle, the handover success rate between Serving cell i and different system adjacent cell j, H
ijfor the ratio of the handover success number of times of Serving cell i to different system adjacent cell j and total switching times of Serving cell i to different system adjacent cell j, wherein, total switching times of Serving cell i to different system adjacent cell j comprises the number of times of Serving cell i to different system adjacent cell j handover success and handoff failure, and above-mentioned each data can be extracted from the OMC of Serving cell i; α represents the weight shared by the handover success rate between preset service cell i and different system adjacent cell j; β represents that the traffic load of default different system adjacent cell j is than shared weight, alpha+beta=1, and such as, α value is 0.8, β value is 0.2.
Step 3, by all traffic loads than the different system adjacent cell being no more than default duty ratio threshold value, the order ascending according to parameters sortnig value sorts;
Concrete, m traffic load is compared L than the different system adjacent cell being no more than default duty ratio threshold value according to traffic load
jascending order sorts, and obtains the sequence after sorting to be: and G1, G2, G3 ... Gm}, and with Δ CIO
r(r=1,2 ..., m) represent the CIO adjustment amount that different system adjacent cell is corresponding;
Step 4, the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell being no more than default duty ratio threshold value;
Concrete, determine that sequence sequence number that G1 is corresponding be the sequence sequence number that 1, G2 is corresponding is 2, the like, the sequence number that Gm is corresponding is m.
Step 5, determine that the CIO adjustment amount of the correspondence of described different system adjacent cell within the current statistic cycle is: (m-q+1) * CIOstep, wherein: m is within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value; Q is sequence sequence number corresponding to different system adjacent cell; CIOstep is that default CIO adjusts step-length.
In concrete enforcement, the formula provided according to step 5 determines each traffic load, and the CIO adjustment amount more corresponding within the current statistic cycle than the different system adjacent cell being no more than default duty ratio threshold value is: Δ CIO
1=m*CIOstep; Δ CIO
2=(m-1) * CIOstep; Δ CIO
m=1*CIOstep.Preferably, CIOstep can be set to 0.5dB.
It should be noted that, the telephone traffic that the Serving cell related in the embodiment of the present invention and different system adjacent cell carry within the current statistic cycle comprises speech business telephone traffic and data service flow, during concrete enforcement, need data service flow to be equivalent to speech business telephone traffic.
After determining different system adjacent cell CIO adjustment amount corresponding within the current statistic cycle, according to the CIO initial value that the Serving cell obtained is the setting of different system adjacent cell, adjust the CIO value that different system adjacent cell is corresponding respectively, that is, the CIO value of different system adjacent cell is adjusted to the CIO adjustment amount sum that CIO initial value is corresponding with this different system adjacent cell determined.And determine further, whether the CIO value after adjustment exceedes the span of default CIO threshold value, if the CIO value after adjustment is more than CIO higher limit, then CIO value corresponding for this different system adjacent cell is adjusted to CIO higher limit, if CIO value corresponding for this different system adjacent cell lower than CIO lower limit, is then adjusted to CIO lower limit by the CIO value after adjustment.
In concrete enforcement, before determining the CIO adjustment amount Δ CIO of different system adjacent cell, first the current CIO initial value arranged for each different system adjacent cell in Serving cell can also be judged whether within the span of the CIO threshold value arranged, if within the span of the CIO threshold value arranged, the CIO value that the CIO parameter regulation means then provided according to the embodiment of the present invention is corresponding to this different system adjacent cell adjusts, otherwise the CIO initial value keeping this different system adjacent cell corresponding is constant.
Based on same inventive concept, a kind of CIO parameter adjustment controls are additionally provided in the embodiment of the present invention, the principle of dealing with problems due to this device is similar to above-mentioned CIO parameter regulation means, and therefore this device is implemented see the enforcement of above-mentioned CIO parameter regulation means, to repeat part and repeat no more.
As shown in Figure 4, be the structural representation of the CIO parameter adjustment controls that the embodiment of the present invention provides, comprise:
Obtain unit 401, for each the different system adjacent cell of Serving cell access for user terminal, obtain the traffic load ratio of current statistic cycle this different system adjacent cell interior;
Determining unit 402, for when the traffic load ratio of this different system adjacent cell exceedes default duty ratio threshold value, determine that the CIO adjustment amount corresponding within the current statistic cycle of this different system adjacent cell is negative value, when the traffic load ratio of this different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of this different system adjacent cell on the occasion of;
Adjustment unit 403 is the CIO adjustment amount sum that CIO initial value corresponding to this different system adjacent cell is corresponding within the current statistic cycle with this different system adjacent cell for adjusting this different system adjacent cell CIO value corresponding within the current statistic cycle.
In concrete enforcement, obtain unit 401, can comprise:
First obtains subelement, for obtaining within the current statistic cycle, and traffic bearing capacity and the switching ratio of this Serving cell to described different system adjacent cell of the Serving cell of user terminal access;
Second obtains subelement, for obtaining the traffic bearing capacity of different system adjacent cell within the current statistic cycle, Traffic Channel TCH congestion ratio, and be adjacent area with this different system adjacent cell, with the quantity of the homologous ray community of Serving cell homologous ray;
Congested telephone traffic determination subelement, for determining the congested telephone traffic of this different system adjacent cell within the current statistic cycle according to the TCH congestion ratio of this different system adjacent cell;
Traffic load ratio determines subelement, for according to determine according to following formula this different system adjacent cell within the current statistic cycle traffic load ratio:
wherein: L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle; Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle; Ec
iand Ec
jrepresent Serving cell i and the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle respectively; R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle; N
jto represent all be adjacent area with different system adjacent cell j, with the quantity of the homologous ray community of Serving cell homologous ray.
In concrete enforcement, congested telephone traffic determination subelement, may be used for determining the congested telephone traffic of arbitrary different system adjacent cell within the current statistic cycle according to following formula:
wherein: Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle; Ec
jrepresent the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle; C
jrepresent the congestion ratio of this different system adjacent cell j within the current statistic cycle.
In concrete enforcement, first obtains subelement, can comprise:
Obtain module, for obtaining within the current statistic cycle, Serving cell is to the number of times of different system adjacent cell business handover success, and the response times of this Serving cell;
Determination module, for determining that Serving cell to the switching ratio of different system adjacent cell within the current statistic cycle is: Serving cell is to the ratio of the different number of times of system adjacent cell business handover success and the response times of described Serving cell.
Concrete, if use R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle, then
In concrete enforcement, adjustment unit 403, can comprise:
First adjacent area quantity determination subelement, for determining within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value;
First sequence subelement, for by all traffic loads than the different system adjacent cell exceeding default duty ratio threshold value, sort than descending order according to traffic load;
First sequence number determination subelement, for the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell exceeding default duty ratio threshold value;
First adjustment amount determination subelement, for determining that the CIO adjustment amount of different system adjacent cell correspondence within the current statistic cycle is :-(n-p+1) * CIOstep, wherein: n is within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value; P is sequence sequence number corresponding to described different system adjacent cell; CIOstep is that default CIO adjusts step-length.
In concrete enforcement, adjustment unit 403, can comprise:
Second adjacent area quantity determination subelement, for determining within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value;
Parameters sortnig value determination subelement, for for each traffic load than the different system adjacent cell being no more than default duty ratio threshold value, according to the traffic load ratio of the handover success rate between Serving cell and this different system adjacent cell with this different system adjacent cell, determine the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle;
Second sequence subelement, for by all traffic loads than the different system adjacent cell being no more than default duty ratio threshold value, the order ascending according to parameters sortnig value sorts;
Second sequence number determination subelement, for the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell being no more than default duty ratio threshold value;
Second adjustment amount determination subelement, for determining that the CIO adjustment amount of the correspondence of this different system adjacent cell within the current statistic cycle is: (m-q+1) * CIOstep, wherein: m is within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value; Q is sequence sequence number corresponding to described different system adjacent cell; CIOstep is that default CIO adjusts step-length.
In concrete enforcement, parameters sortnig value determination subelement, may be used for determining according to following formula the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle: P
j=α * (1-H
ij)+β * L
j, wherein: P
jrepresent parameters sortnig value; H
ijrepresent within the current statistic cycle, the handover success rate between Serving cell i and different system adjacent cell j; α represents the weight shared by the handover success rate between preset service cell i and different system adjacent cell j; β represents that the traffic load of default different system adjacent cell j is than shared weight.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
The CIO parameter regulation means that the embodiment of the present invention provides and device, when carrying out business switching in 23G interoperability, according within the current statistic cycle, the traffic load ratio of the different system adjacent cell of the Serving cell of the current access of user terminal, adjust the CIO parameter of different system adjacent cell, when the traffic load ratio of different system adjacent cell exceedes default duty ratio threshold value, determine that CIO adjustment amount corresponding to this different system adjacent cell is negative value, when the traffic load ratio of different system adjacent cell is no more than default duty ratio threshold value, determine CIO adjustment amount corresponding to this different system adjacent cell on the occasion of, like this, situation can be compared according to the traffic load of different system adjacent cell, make this different system adjacent cell in advance or delayedly meet trigger condition, because above-mentioned CIO parameter tuning process is without the need to relying on the subjective experience of network maintenance staff, thus improve the accuracy and efficiency of CIO parameter adjustment.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (14)
1. a CIO parameter regulation means, is characterized in that, comprising:
For each different system adjacent cell of the Serving cell of user terminal access, obtain the traffic load ratio of this different system adjacent cell in the current statistic cycle;
If the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determine that the cell individual offsets CIO adjustment amount of described different system adjacent cell correspondence within the current statistic cycle is negative value,
If the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of;
Wherein, if the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determine that the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell is negative value, specifically comprise: according to all traffic loads than the quantity of different system adjacent cell exceeding default duty ratio threshold value, and each traffic load sequence sequence number more corresponding than the different system adjacent cell exceeding default duty ratio threshold value and the CIO that presets adjust step-length, determine the CIO adjustment amount that described different system adjacent cell is corresponding within the current statistic cycle;
Wherein, if the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of, specifically comprise: according to all traffic loads than the quantity of different system adjacent cell being no more than default duty ratio threshold value, and each traffic load sequence sequence number more corresponding than the different system adjacent cell being no more than default duty ratio threshold value and the CIO that presets adjust step-length, determine the CIO adjustment amount that described different system adjacent cell is corresponding within the current statistic cycle;
Adjusting described different system adjacent cell CIO value corresponding within the current statistic cycle is the CIO adjustment amount sum that CIO initial value corresponding to described different system adjacent cell is corresponding within the current statistic cycle with described different system adjacent cell.
2. the method for claim 1, is characterized in that, obtains the traffic load ratio of this different system adjacent cell in the current statistic cycle, specifically comprises:
Obtain in the current statistic cycle, the traffic bearing capacity of the Serving cell of user terminal access and described Serving cell are to the switching ratio of described different system adjacent cell; And
Obtain the traffic bearing capacity of described different system adjacent cell within the current statistic cycle, Traffic Channel TCH congestion ratio, and be adjacent area with described different system adjacent cell, with the quantity of the homologous ray community of described Serving cell homologous ray; And
The congested telephone traffic of described different system adjacent cell within the current statistic cycle is determined according to the TCH congestion ratio of described different system adjacent cell; And
The traffic load ratio of this different system adjacent cell within the current statistic cycle is determined according to following formula:
L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle;
Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle;
Ec
iand Ec
jrepresent Serving cell i and the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle respectively;
R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle;
N
jto represent all be adjacent area with different system adjacent cell j, with the quantity of the homologous ray community of Serving cell homologous ray.
3. method as claimed in claim 2, is characterized in that, according to the TCH congestion ratio of described different system adjacent cell, determine the congested telephone traffic of described different system adjacent cell within the current statistic cycle according to following formula:
Eb
jrepresent the congested telephone traffic of different system adjacent cell j within the current statistic cycle;
Ec
jrepresent the traffic bearing capacity of different system adjacent cell j within the current statistic cycle;
C
jrepresent the congestion ratio of different system adjacent cell j within the current statistic cycle.
4. method as claimed in claim 2, is characterized in that, obtains described Serving cell to the switching ratio of described different system adjacent cell within the current statistic cycle, specifically comprises:
Obtain within the current statistic cycle, described Serving cell is to the number of times of described different system adjacent cell business handover success, and the response times of described Serving cell;
Determine that described Serving cell to the switching ratio of described different system adjacent cell within the current statistic cycle is: described Serving cell is to the ratio of the described different number of times of system adjacent cell business handover success and the response times of described Serving cell.
5. the method for claim 1, is characterized in that, if the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determines that the CIO adjustment amount of described different system adjacent cell correspondence within the current statistic cycle is negative value, specifically comprises:
Determine within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value; And
By all traffic loads than the different system adjacent cell exceeding default duty ratio threshold value, sort than descending order according to traffic load; And
The sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell exceeding default duty ratio threshold value;
Determine that the CIO adjustment amount of described different system adjacent cell correspondence within the current statistic cycle is :-(n-p+1) * CIOstep, wherein:
N is within the current statistic cycle, and all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value;
P is sequence sequence number corresponding to described different system adjacent cell;
CIOstep is that default CIO adjusts step-length.
6. the method for claim 1, is characterized in that, if the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of, specifically comprise:
Determine within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value; And
For each traffic load than the different system adjacent cell being no more than default duty ratio threshold value, according to the traffic load ratio of the handover success rate between described Serving cell and this different system adjacent cell and described different system adjacent cell, determine the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle;
By all traffic loads than the different system adjacent cell being no more than default duty ratio threshold value, the order ascending according to parameters sortnig value sorts; And
The sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell being no more than default duty ratio threshold value;
Determine that the CIO adjustment amount of the correspondence of described different system adjacent cell within the current statistic cycle is: (m-q+1) * CIOstep, wherein:
M is within the current statistic cycle, and all traffic loads are than the quantity of different system adjacent cell being no more than default duty ratio threshold value;
Q is sequence sequence number corresponding to described different system adjacent cell;
CIOstep is that default CIO adjusts step-length.
7. method as claimed in claim 6, it is characterized in that, according to the traffic load ratio of the handover success rate between described Serving cell and this different system adjacent cell and described different system adjacent cell, determine the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle, specifically comprise:
The parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle is determined according to following formula:
P
j=α * (1-H
ij)+β * L
j, wherein:
P
jrepresent parameters sortnig value;
H
ijrepresent within the current statistic cycle, the handover success rate between Serving cell i and different system adjacent cell j;
α represents the weight shared by the handover success rate between preset service cell i and different system adjacent cell j;
β represents that the traffic load of default different system adjacent cell j is than shared weight;
L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle.
8. CIO parameter adjustment controls, is characterized in that, comprising:
Obtain unit, for each the different system adjacent cell of Serving cell access for user terminal, obtain the traffic load ratio of current statistic cycle this different system adjacent cell interior;
Determining unit, for when the traffic load ratio of described different system adjacent cell exceedes default duty ratio threshold value, determine that the cell individual offsets CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell is negative value, when the traffic load ratio of described different system adjacent cell is no more than default duty ratio threshold value, determine the CIO adjustment amount corresponding within the current statistic cycle of described different system adjacent cell on the occasion of;
Wherein, described determining unit, specifically for: according to all traffic loads than the quantity of different system adjacent cell exceeding default duty ratio threshold value, and each traffic load sequence sequence number more corresponding than the different system adjacent cell exceeding default duty ratio threshold value and the CIO that presets adjust step-length, determine the CIO adjustment amount that described different system adjacent cell is corresponding within the current statistic cycle; According to all traffic loads than the quantity of different system adjacent cell being no more than default duty ratio threshold value, and each traffic load sequence sequence number more corresponding than the different system adjacent cell being no more than default duty ratio threshold value and the CIO that presets adjust step-length, determine the CIO adjustment amount that described different system adjacent cell is corresponding within the current statistic cycle;
Adjustment unit is the CIO adjustment amount sum that CIO initial value corresponding to described different system adjacent cell is corresponding within the current statistic cycle with described different system adjacent cell for adjusting described different system adjacent cell CIO value corresponding within the current statistic cycle.
9. device as claimed in claim 8, it is characterized in that, described acquisition unit, comprising:
First obtains subelement, and for obtaining within the current statistic cycle, the traffic bearing capacity of Serving cell of user terminal access and described Serving cell are to the switching ratio of described different system adjacent cell;
Second obtains subelement, for obtaining the traffic bearing capacity of described different system adjacent cell within the current statistic cycle, Traffic Channel TCH congestion ratio, and be adjacent area with described different system adjacent cell, with the quantity of the homologous ray community of described Serving cell homologous ray;
Congested telephone traffic determination subelement, for determining the congested telephone traffic of described different system adjacent cell within the current statistic cycle according to the TCH congestion ratio of described different system adjacent cell;
Traffic load ratio determines subelement, for determining the traffic load ratio of this different system adjacent cell within the current statistic cycle according to following formula:
L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle;
Eb
jrepresent the congested telephone traffic of this different system adjacent cell j within the current statistic cycle;
Ec
iand Ec
jrepresent Serving cell i and the traffic bearing capacity of this different system adjacent cell j within the current statistic cycle respectively;
R23G
ijrepresent the switching ratio of Serving cell i to different system adjacent cell j within the current statistic cycle;
N
jto represent all be adjacent area with different system adjacent cell j, with the quantity of the homologous ray community of Serving cell homologous ray.
10. device as claimed in claim 9, is characterized in that,
Described congested telephone traffic determination subelement, specifically for determining the congested telephone traffic of described different system adjacent cell within the current statistic cycle according to following formula:
Eb
jrepresent the congested telephone traffic of different system adjacent cell j within the current statistic cycle;
Ec
jrepresent the traffic bearing capacity of different system adjacent cell j within the current statistic cycle;
C
jrepresent the congestion ratio of different system adjacent cell j within the current statistic cycle.
11. devices as claimed in claim 9, is characterized in that, described first obtains subelement, comprising:
Obtain module, for obtaining within the current statistic cycle, described Serving cell is to the number of times of described different system adjacent cell business handover success, and the response times of described Serving cell;
Determination module, for determining that described Serving cell to the switching ratio of described different system adjacent cell within the current statistic cycle is: described Serving cell is to the ratio of the described different number of times of system adjacent cell business handover success and the response times of described Serving cell.
12. devices as claimed in claim 8, it is characterized in that, described adjustment unit, comprising:
First adjacent area quantity determination subelement, for determining within the current statistic cycle, all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value;
First sequence subelement, for by all traffic loads than the different system adjacent cell exceeding default duty ratio threshold value, sort than descending order according to traffic load;
First sequence number determination subelement, for the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell exceeding default duty ratio threshold value;
First adjustment amount determination subelement, for determining that the CIO adjustment amount of described different system adjacent cell correspondence within the current statistic cycle is :-(n-p+1) * CIOstep, wherein:
N is within the current statistic cycle, and all traffic loads are than the quantity of different system adjacent cell exceeding default duty ratio threshold value;
P is sequence sequence number corresponding to described different system adjacent cell;
CIOstep is that default CIO adjusts step-length.
13. devices as claimed in claim 8, it is characterized in that, described adjustment unit, comprising:
Second adjacent area quantity determination subelement, for determining all traffic loads than the quantity of the different system adjacent cell being no more than default duty ratio threshold value;
Parameters sortnig value determination subelement, for for each traffic load than the different system adjacent cell being no more than default duty ratio threshold value, according to the traffic load ratio of the handover success rate between described Serving cell and this different system adjacent cell and described different system adjacent cell, determine the parameters sortnig value that this different system adjacent cell is corresponding;
Second sequence subelement, for by all traffic loads than the different system adjacent cell being no more than default duty ratio threshold value, the order ascending according to parameters sortnig value sorts;
Second sequence number determination subelement, for the sequence sequence number that to determine each traffic load more corresponding than the different system adjacent cell being no more than default duty ratio threshold value;
Second adjustment amount determination subelement, for determining that the CIO adjustment amount of the correspondence of described different system adjacent cell is: (m-q+1) * CIOstep, wherein:
M is all traffic loads than the quantity of different system adjacent cell being no more than default duty ratio threshold value;
Q is sequence sequence number corresponding to described different system adjacent cell;
CIOstep is that default CIO adjusts step-length.
14. devices as claimed in claim 13, is characterized in that,
Described parameters sortnig value determination subelement, specifically for determining the parameters sortnig value that this different system adjacent cell is corresponding within the current statistic cycle according to following formula:
P
j=α * (1-H
ij)+β * L
j, wherein:
P
jrepresent parameters sortnig value;
H
ijrepresent within the current statistic cycle, the handover success rate between Serving cell i and different system adjacent cell j;
α represents the weight shared by the handover success rate between preset service cell i and different system adjacent cell j;
β represents that the traffic load of default different system adjacent cell j is than shared weight;
L
jrepresent the traffic load ratio of this different system adjacent cell j within the current statistic cycle.
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| CN107466052B (en) * | 2016-06-03 | 2019-12-06 | 大唐移动通信设备有限公司 | Parameter optimization method and device |
| CN109391974B (en) * | 2017-08-14 | 2022-03-04 | ***通信集团广东有限公司 | LTE intersystem flow self-adaption method |
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