CN103648128B - Method and device for determining switching threshold between systems - Google Patents
Method and device for determining switching threshold between systems Download PDFInfo
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- CN103648128B CN103648128B CN201310747278.0A CN201310747278A CN103648128B CN 103648128 B CN103648128 B CN 103648128B CN 201310747278 A CN201310747278 A CN 201310747278A CN 103648128 B CN103648128 B CN 103648128B
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Abstract
The invention discloses a method and a device for determining a switching threshold between systems. The method comprises the following steps: when the switching threshold needs to be determined, acquiring the reception level in a measurement report reported by UE in the most recent period of time T, and drop call reception levels corresponding to drop calls in the most recent period of time T; dividing the acquired reception levels into a plurality of level sections according to set level length, and determining the drop call probability index of each level section according the drop call times in each level section; according to the pre-stored drop call probability indexes of the level section in which a plurality of pre-used switching thresholds exist, selecting the maximum pre-used switching threshold which is not smaller than the set probability and corresponds to the drop call probability index as the switching threshold, or selecting the minimum pre-used switching threshold which is smaller than the preset probability and corresponds to the drop call probability index as the switching threshold. According to the method, the switching threshold of a cell can be automatically determined in a short period, manpower and material resources are saved, and the efficiency is high.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of method and device for determining intersystem handover thresholding.
Background technology
At present, TD is used（TD-SCDMA, Time Division-Synchronous Code Division Multiple
Access）The user of network is more and more, and the coverage of TD networks is increasing, in order that user possesses preferably uses body
Test, Virtual network operator is proposed double preference policy, i.e. 3G（TD）Combined optimization strategy between network and 2G networks, i.e. ensuring
In the case of Consumer's Experience, it is ensured that more user terminals（Not only 2G networks had been supported but also 3G network had been supported）3G network is rested on, this
Sample is accomplished by setting the handoff threshold between suitable 3G network and 2G networks, and the handoff threshold is lower, rests on 3G network
User terminal is more, and the handoff threshold is higher, and the user terminal for resting on 2G networks is more.
Therefore it is to be ensured that user terminal as much as possible rests on 3G network, it is necessary to reduce internetwork handoff threshold,
But, if thresholding setting is too low, when the poor signal of 3G network, user cannot just be switched to 2G networks（Because 2G
The height of the mature ratio 3G of network, the stability of network signal is overall better than 3G, but under 2G networks, networking speed just compares
It is slower）, now rest on the user terminal of 3G network can frequently occur call drop, fall net etc. event when, now can not only utilize
The advantage of 3G high speed Internet accesses, can also make troubles to user.
Similarly, if the thresholding sets too high, then the user for resting on 3G network will be reduced, and rest on 2G networks
User is relative to increase, now, when the signal of 3G network is preferable, originally can be using the user of 3G network, but because of handoff threshold
It is too high to be switched to 3G network, so as to waste the resource of 3G network.Therefore, 3G（TD）Combine between network and 2G networks
Optimisation strategy problem to be solved is exactly：How on the premise of Consumer's Experience is ensured, a suitable handoff threshold is set,
Be rest on 3G networks user try one's best it is many.
The existing scheme for solving the above problems is that, by software emulation, emulation obtains internetwork handoff threshold, further according to
On-the-spot test and the statistics to customer complaint opinion, by repeatedly modification, so as to obtain internetwork handoff threshold, but may
The time of even one week one day is needed to determine handoff threshold.Although this scheme can obtain handoff threshold, it is different small
Handoff threshold corresponding to area's scene is different, and this scheme cannot automatically derive the handoff threshold of all cell scenarios, Zhi Nengtong
Later test modifications of phase, wasting manpower and material resources, efficiency is low.
The content of the invention
The invention provides a kind of method and device for determining intersystem handover thresholding, it is used to solve determine in the prior art
The problem that the handoff threshold time is long, wasting manpower and material resources, efficiency are low.
The invention provides a kind of method for determining intersystem handover thresholding, including：
It needs to be determined that during handoff threshold, the reception level in the measurement report that UE is reported in nearest a period of time T is obtained, and
The call drop corresponding to each call drop occurred in nearest a period of time T receives level；
The all reception level for obtaining are divided into multiple level intervals by the level step of setting, according to each level area
Between number of dropped calls, determine the interval call drop probability index of each described level, the interval number of dropped calls of described each level is
Call drop in each level interval receives level number；
The call drop probability index in the level interval according to where the pre- handoff threshold of the multiple for prestoring, selection is not less than
The corresponding maximum pre- handoff threshold of call drop probability index of probability is set as handoff threshold, or selection is less than setting probability
The corresponding minimum pre- handoff threshold of call drop probability index as handoff threshold.
Methods described, when there is call drop every time, record call drop time and the UE that call drop occurs are identified, and are obtained nearest one section
The reception level corresponding to each call drop occurred in time T, specifically includes：
The measurement report of the UE before searching the call drop time away from the call drop time recently and in setting time section, it is determined that looking into
Corresponding call drop receives level when reception level in the measurement report for finding is call drop.
Can so find the corresponding call drop of each call drop receive level and the generation of this call drop for ensureing the UE with should
The measurement report that the UE is reported before secondary call drop is in same cell.
In methods described, according to the number of dropped calls that each level is interval, the interval call drop probability of each level is determined
Index, specifically includes：
It is interval for each level, by the reception level number in the interval number of dropped calls of the level and level interval
Ratio, as the call drop probability index that the level is interval；Or,
It is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as the level area
Between call drop probability index；Or
Interval for each level, the reception level number/reception level number sum in level interval is obtained
The interval sampled point accounting of the level, the interval call drop of the level is obtained according to the interval number of dropped calls/call drop sum of the level
Number of times accounting, according to the sampled point accounting that the interval number of dropped calls accounting/level of the level is interval, obtains falling for level interval
Words probability index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is
The interval reception level number sum of all level.
The call drop probability index that above-mentioned three kinds of modes are calculated can to a certain extent react each level interval
Call drop situation, but the call drop probability index combined obtained by the calculation of number of dropped calls accounting and sampled point accounting is more accurate
It is really reliable.
In methods described, the call drop probability in the level interval where the pre- handoff threshold of multiple that the basis is prestored
Index, selection is corresponding not less than the call drop probability index of setting probability maximum in advance with handoff threshold as handoff threshold, or
Selection minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is specifically included as handoff threshold：
According to descending order, since the multiple pre- maximum with handoff threshold, perform successively as follows
Step is to determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or by the previous pre- use of the pre- use handoff threshold
Handoff threshold is used as handoff threshold.
So can be required for find it is pre- when using handoff threshold, stop it is super looks for operation, cut so as to improve determination
Change the speed of thresholding.
In methods described, the call drop probability in the level interval where the pre- handoff threshold of multiple that the basis is prestored
Index, selection maximum pre- handoff threshold corresponding not less than the call drop probability index of setting probability as handoff threshold, specifically
Including：
According to descending order, following step is performed successively since the multiple pre- maximum with handoff threshold
It is rapid to determining handoff threshold：
It is determined that where the pre- call drop probability index interval with the level where handoff threshold, the handoff threshold add definite value
The interval call drop probability index of level, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value sets not less than described
Determine probability；
If it is, using the pre- use handoff threshold as handoff threshold.
This mode averaged can make call drop probability index corresponding to one of them pre- use handoff threshold more
Accurately and reliably, and then make the handoff threshold for drawing more accurate.
Methods described, also includes：
When the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than setting probability, selection
Minimum value in each pre- use handoff threshold is used as handoff threshold.
This implementation method is provided when the interval call drop probability of the level where all of pre- use handoff threshold is both less than
During setting probability, the mechanism of handoff threshold is determined, it is ensured that finally determine handoff threshold.
Methods described, also includes：
When it is determined that call drop does not occur in a period of time T recently, the multiple that selection is prestored is pre- with handoff threshold
Minimum value is handoff threshold.
When all there is no call drop in nearest a period of time T, in order to ensure that more users rest on 3G network, will be advance
The pre- minimum value with handoff threshold of multiple of storage is used as handoff threshold.
Present invention also offers a kind of device for determining intersystem handover thresholding, including：
Acquiring unit, for it needs to be determined that during handoff threshold, obtaining the measurement report that UE is reported in nearest a period of time T
In reception level, and call drop corresponding to each call drop for occurring in a period of time T recently receives level；
First determining unit, for all reception level for obtaining to be divided into multiple level areas by the level step of setting
Between, according to the number of dropped calls that each level is interval, determine the interval call drop probability index of each level, described each level
Interval number of dropped calls is that the call drop in each level interval receives level number；
Second determining unit, it is general for the interval call drop of the level according to where the pre- handoff threshold of the multiple for prestoring
Rate index, selection is corresponding not less than the call drop probability index of setting probability maximum in advance with handoff threshold as handoff threshold, or
Person's selection minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is used as handoff threshold.
In described device, the acquiring unit specifically for：
When there is call drop every time, record call drop time and the UE that call drop occurs are identified, away from call drop before searching the call drop time
The measurement report of the UE of the time recently and in setting time section, it is determined that the reception level in the measurement report for finding is to fall
Corresponding call drop receives level during words.
In described device, first determining unit specifically for：
It is interval for each level, by the reception level number in the interval number of dropped calls of the level and level interval
Ratio, as the call drop probability index that the level is interval；Or,
It is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as the level area
Between call drop probability index；Or
Interval for each level, the reception level number/reception level number sum in level interval is obtained
The interval sampled point accounting of the level, the interval call drop of the level is obtained according to the interval number of dropped calls/call drop sum of the level
Number of times accounting, according to the sampled point accounting that the interval number of dropped calls accounting/level of the level is interval, obtains falling for level interval
Words probability index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is
The interval reception level number sum of all level.
In described device, second determining unit specifically for：
According to descending order, since the multiple pre- maximum with handoff threshold, perform successively as follows
Step is to determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or by the previous pre- use of the pre- use handoff threshold
Handoff threshold is used as handoff threshold.
In described device, second determining unit specifically for：
According to descending order, following step is performed successively since the multiple pre- maximum with handoff threshold
It is rapid to determining handoff threshold：
It is determined that where the pre- call drop probability index interval with the level where handoff threshold, the handoff threshold add definite value
The interval call drop probability index of level, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value sets not less than described
Determine probability；
If it is, using the pre- use handoff threshold as handoff threshold.
In corresponding device, second determining unit is additionally operable to：
When the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than setting probability, selection
Minimum value in each pre- use handoff threshold is used as handoff threshold.
In described device, second determining unit is additionally operable to：
It is determined that when there is no call drop in a period of time T recently, multiple that selection is prestored it is pre- with handoff threshold most
Small value is handoff threshold.
The method and device of the determination intersystem handover thresholding provided using the present invention, is had the advantages that：Can be with
Within several hours or even shorter time, the call drop situation according to different districts determines the corresponding switching door in different districts
Limit, such that it is able to obtain the handoff threshold of all cell scenarios, and the handoff threshold for obtaining is more accurately and reliably, saves people
Power material resources, efficiency high.
Brief description of the drawings
Fig. 1 is the method flow diagram of determination intersystem handover thresholding provided in an embodiment of the present invention；
Fig. 2 is the preferred embodiment flow chart of determination handoff threshold provided in an embodiment of the present invention；
Fig. 3 is specific embodiment flow chart provided in an embodiment of the present invention；
Fig. 4 is the schematic device of determination handoff threshold provided in an embodiment of the present invention.
Specific embodiment
The method to determination intersystem handover thresholding proposed by the present invention is carried out in more detail with reference to the accompanying drawings and examples
Explanation.
The invention provides a kind of method for determining intersystem handover thresholding, as shown in figure 1, including：
Step 101, it is thus necessary to determine that during handoff threshold, connecing in the measurement report that UE is reported in the nearest a period of time T of acquisition
Receive the call drop corresponding to each call drop occurred in level, and a period of time T recently and receive level.
Specifically, when reaching setting cycle, or when detecting current call drop probability index and fluctuating excessive, it is determined that needing
Determine handoff threshold, wherein, the setting cycle is preferably one week.
Wherein, nearest a period of time T represents a period of time T it needs to be determined that before handoff threshold, and time T preferably can be with
It it is one week, the reception level in the measurement report of the nearest a period of time reported according to UE can count the reception in time T
Level number is total and the span of level is received in time T；Call drop corresponding to each call drop receives level
When there is call drop every time, the reception level corresponding to this call drop.
Preferably, call drop can be recorded on the basis of it there is call drop in call and receives level, i.e. in call
Generation call drop just records a call drop and receives level.
The all reception level for obtaining are divided into multiple level intervals, according to every by step 102 by the level step of setting
The interval number of dropped calls of individual level, determines the interval call drop probability index of each level, and described each level is interval to be fallen
Words number of times is that the call drop in each level interval receives level number.
The setting step-length can set according to actual conditions, it is preferable that set step-length as 1dBm.
Specifically, according to the span and the level step of setting of all reception level for obtaining, can divide
The interval number of level；Count the call drop corresponding to all call drops and receive level sum, used as call drop sum, each call drop institute is right
The call drop answered receives level has the level belonging to oneself interval, counts the phone in each level interval and receives level number work
It is the interval number of dropped calls, the interval number of dropped calls of each level just can to a certain extent react the interval call drop feelings
Condition.
Step 103, the call drop probability index in the level interval according to where the pre- handoff threshold of the multiple for prestoring, choosing
Maximum pre- handoff threshold corresponding not less than the call drop probability index of setting probability is selected to be less than as handoff threshold, or selection
The corresponding minimum pre- handoff threshold of call drop probability index of probability is set as handoff threshold.
Preferably, the pre- minimum value with handoff threshold of multiple for prestoring is -103dBm, and maximum is -85dBm.
Preferably, the value of the setting probability is preferably 0.02, and it is set as also dependent on actual conditions such as user's perception
It is worth.
Specifically, prestore it is multiple pre- use handoff threshold, and the level area where determining each pre- use handoff threshold
Between, it is general not less than the call drop of setting probability in the call drop probability index in the level interval where filtering out each pre- use handoff threshold
Rate index, in each call drop probability index that selection is filtered out, it is handoff threshold with handoff threshold that corresponding maximum is pre-, so
Can ensure that determined handoff threshold value is as far as possible small, when emphasis consider be access 3G network system number of users when, can
Select this mode.
Or, the call drop probability index in the level interval according to where the pre- handoff threshold of the multiple for prestoring, selection
Minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is used as handoff threshold, the switching so determined
Thresholding can ensure Consumer's Experience, can make to rest on the better user experience of 3G network system, and when emphasis consideration is to access
During the Consumer's Experience of 3G network system, this mode may be selected.
In actual applications, the handoff threshold that general both modes are determined can and meanwhile meet Consumer's Experience and
User accesses quantity.
Based on above-described embodiment, it is determined that when there is no call drop in a period of time T recently, the multiple that selection is prestored is used in advance
Minimum value in handoff threshold is handoff threshold.
The embodiment of the present invention is preferably applied to the cell that current network is 3G network system, to make the use for resting on 3G network
Family is more, it is necessary to make intersystem handover threshold value smaller, when when there is no call drop, illustrating the cell in Cell time T
Under scene, the signal of 3G network is stablized relatively, the pre- minimum values with handoff thresholds of multiple that can now prestore as
Handoff threshold, makes more users use 3G network.
Based on above-described embodiment, when there is call drop every time, record call drop time and the UE that call drop occurs are identified, and obtain nearest
The reception level corresponding to each call drop occurred in a period of time T, specifically includes：
The measurement report of the UE before searching the call drop time away from the call drop time recently and in setting time section, it is determined that looking into
Corresponding call drop receives level when reception level in the measurement report for finding is call drop.
Specifically, for each call drop, record the call drop time and the UE marks of call drop occur, and search this call drop
Before the call drop time, apart from the measurement report of the UE of this call drop time of call drop recently and in setting time section, and will
Corresponding call drop receives level when reception level in the measurement report for finding is as this call drop.
Can so find the corresponding call drop of each call drop receive level and the generation of this call drop for ensureing the UE with should
The measurement report that the UE is reported before secondary call drop is in same cell.
It is further preferred that detect there is cell where this UE of call drop with this call drop of distance for being found most
When cell where near measurement report UE is different, abandons corresponding call drop during this call drop and receive level, can so ensure
Acquired call drop receives the corresponding call drop of level all to be occurred it needs to be determined that in the cell of handoff threshold.
Setting time section can with but be not limited to 25 seconds, or other values, specific value can be according to reality
Situation determines.
Based on above-described embodiment, the interval call drop probability index of each level is determined according to each interval number of dropped calls
Mode have various, specifically include：
Mode 1, it is interval for each level, by the reception level in the interval number of dropped calls of the level and level interval
The ratio of number, as the call drop probability index that the level is interval.
Mode 2, it is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as this
The interval call drop probability index of level, wherein, the call drop sum is the interval number of dropped calls sum of all level.
Mode 3, interval for each level, the reception level number/reception level number in level interval is total
Number obtains the interval sampled point accounting of the level, and it is interval to obtain the level according to the interval number of dropped calls/call drop sum of the level
Number of dropped calls accounting, according to level interval number of dropped calls accounting/interval sampled point accounting of the level, obtain the level area
Between call drop probability index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is
The interval reception level number sum of all level.
Above-mentioned three kinds of modes, after ratio is calculated, also multiplied by with 100%, the percentage that will be calculated is general as call drop
Rate index, now, the value correspondence for setting probability is preferably 2%.
Each interval call drop probability index that mode 1 and mode 2 are calculated can to a certain extent react each area
Between call drop situation, but both modes can not accurately reflect each interval call drop situation, mode 1 considers each
The interval number of dropped calls of level and the interval reception level number of the level, but level distribution situation is received in each interval and is differed
Sample, it is possible to which the reception level number in interval more than number of dropped calls is little, and the reception level in the few interval of number of dropped calls
Number is a lot, and the not accurate enough reliability of call drop probability index so calculated, mode 2 only considered number of dropped calls, equally,
Reception level distribution in each level interval is different, it is impossible to comprehensively reflect each interval call drop situation, and mode 3 is
Consider the reception level number of number of dropped calls and each interval, it is interval for each level, first calculate the level area
Between in number of dropped calls accounting, then calculate level accounting i.e. sampled point accounting received in the interval, can be according to varying level area
Between in different number of dropped calls and receive level number and draw the interval call drop probability index of each level, resulting call drop
Probability index is accurately and reliably.
Based on above-described embodiment, the call drop probability in the level interval according to where the pre- handoff threshold of the multiple for prestoring
Index, selection is corresponding not less than the call drop probability index of setting probability maximum in advance with handoff threshold as handoff threshold, or
Selection minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is specifically included as handoff threshold：
According to descending order, since the multiple pre- maximum with handoff threshold, perform successively as follows
Step is to determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or by the previous pre- use of the pre- use handoff threshold
Handoff threshold is used as handoff threshold.
So can be required for find it is pre- when using handoff threshold, stop it is super looks for operation, cut so as to improve determination
Change the speed of thresholding.
Specifically, implementation process as shown in Fig. 2 including：
Step 201, multiple is ranked up with handoff threshold according to descending order in advance；
Step 202, first using the pre- maximum with handoff threshold as judging object；
Step 203, the call drop probability index in the level interval where determining the judgement object；
Whether step 204, judge the interval call drop probability index of the level where judging object not less than setting probability,
If it is, performing step 205, step 206 is otherwise performed；
Step 205, determines that the pre- handoff threshold is corresponding not less than the call drop probability index of setting probability maximum pre-
With handoff threshold, using the pre- use handoff threshold as handoff threshold, or the previous pre- of the pre- use handoff threshold is used into switching
Thresholding is used as handoff threshold.
Step 206, judges whether the pre- handoff threshold is minimum value in all pre- use handoff thresholds, if it is, holding
Row step 207, otherwise using pre- one after the handoff threshold pre- handoff threshold as judging object and perform step
203；
Step 207, when the call drop probability index in the level interval where determining the minimum value is not less than setting probability, by this
Minimum value as handoff threshold, or using the previous pre- use handoff threshold of the minimum value as handoff threshold.
Based on above-described embodiment, the call drop probability in the level interval according to where the pre- handoff threshold of the multiple for prestoring
Index, selection maximum pre- handoff threshold corresponding not less than the call drop probability index of setting probability as handoff threshold, specifically
Including：
According to descending order, following step is performed successively since the multiple pre- maximum with handoff threshold
It is rapid to determining handoff threshold：
It is determined that where the pre- call drop probability index interval with the level where handoff threshold, the handoff threshold add definite value
The interval call drop probability index of level, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value sets not less than described
Determine probability；
If it is, using the pre- use handoff threshold as handoff threshold.
The setting value can set according to actual conditions, preferably 1dBm, and the setting step-length interval with level is divided is identical,
The interval call drop probability index of level where the pre- use handoff threshold can thus be taken and pre- use handoff threshold phase with this
The pre- call drop probability index interval with the level where handoff threshold of adjacent two, the average value of these three call drop probability indexs,
This mode averaged can make call drop probability index corresponding to one of them pre- use handoff threshold more accurately and reliably,
And then make the handoff threshold for drawing more accurate.
Additionally, when one of them pre- level interval with where handoff threshold has two, it may appear that cannot determine that this is pre-
The problem of the call drop probability index in which interval is taken with the call drop probability index corresponding to handoff threshold, this is taken and pre- is used handoff threshold
The call drop probability index in the level interval where level value before and after, before and after now can use pre- handoff threshold
Level value where the interval call drop probability index of level average value as the corresponding call drop probability of the pre- use handoff threshold
Index, it is possible to resolve above mentioned problem.
The specific implementation process of the embodiment of the present invention is similar with the specific implementation process of mode 1, repeats no more here.
In practical application, there is such trend：The pre- value with thresholding is bigger, and this is pre- to be fallen with the level where thresholding is interval
Words probability index is smaller, the embodiment of the present invention since in advance with the maximum of thresholding, i.e., the electricity from where each pre- use handoff threshold
Put down interval minimum call drop probability index to start, be compared with setting probability, if where one of them pre- use handoff threshold
The interval call drop probability index of level not less than setting probability, illustrate that this pre- uses handoff threshold institute with pre- after handoff threshold
The interval call drop probability index of level, in order to ensure Consumer's Experience, can also be determined in first time not less than setting probability
When the pre- call drop probability index interval with the level where handoff threshold is not less than setting probability, just the pre- handoff threshold is made
It is handoff threshold.
Based on above-described embodiment, the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than
During setting probability, the minimum value in each pre- use handoff threshold is selected as handoff threshold.
So, when all there is no call drop in nearest a period of time T, in order to ensure that more users rest on 3G network,
The multiple that will be prestored is in advance with the minimum value in handoff threshold as handoff threshold.
Additionally, also handoff threshold can be determined in the following ways：
The interval call drop probability index of level according to where the pre- handoff thresholds of the multiple for prestoring, according to by greatly to
Small order, perform successively since the maximum (the 1st is used handoff threshold in advance) in the multiple pre- use handoff threshold below
Accumulation operations are to determining handoff threshold：
Judge multiple pre- top ns with handoff threshold in advance with the call drop probability index that the level where handoff threshold is interval
Sum whether not less than setting probability, wherein, N more than waiting 1, and less than or equal to the pre- handoff threshold of multiple for prestoring
Number；
If it is, using n-th in advance with handoff threshold as handoff threshold.
When each pre- call drop probability index interval with the level where the handoff threshold is both less than setting probability, explanation
The pre- call drop probability interval with the level where thresholding is all smaller, now in order that more users can switch to 3G nets
Network, can select the minimum value in each pre- use handoff threshold as handoff threshold.
The side of determination intersystem handover thresholding provided in an embodiment of the present invention is illustrated with reference to specific embodiment
Method, as shown in figure 3, including：
Step 301, when reaching setting cycle, it is determined that it needs to be determined that handoff threshold, obtains UE in nearest a period of time T and report
Measurement report in reception level, and call drop corresponding to each call drop for occurring in a period of time T recently receives level.
Specifically, the call data of user in nearest a period of time T can be obtained, all kinds of business are included in the call data
(such as circuit domain business and packet switch domain service), and user MR (Measurement Report, measurement report) data, MR data
In receive level and adjacent cell comprising main serving cell and receive level, when determining the handoff threshold of which cell using the cell as
Main serving cell, further obtains the reception level of main serving cell.
When obtaining that each call drop occurred in nearest a period of time T is corresponding to receive level, occur with call
On the basis of call drop, if there is call drop in call, this call drop signaling of call drop is obtained, included in the call drop signaling
When record UE occurs call drop there is the cell of main serving cell residing during call drop in the timestamp and the UE of record call drop time
Mark；The measurement report signaling apart from the call drop time of this call drop nearest UE is obtained simultaneously, in the measurement report signaling
The current main service it needs to be determined that handoff threshold is reported comprising the timestamp and the UE for recording the UE reporting measurement reports times
The cell ID of cell, if the cell ID in call drop signaling is different with the cell ID in measurement report signaling, just recognizes
For this call drop does not occur it needs to be determined that the current main serving cell of handoff threshold, abandons this call drop, and this is not recorded
Corresponding call drop receives level during secondary call drop；In determining whether two signalings if the cell ID in two signalings is identical
The difference of time that is recorded of timestamp whether less than 25 seconds（Setting time section）, if it is, obtaining in nearest a period of time T
Apart from reception level of this call drop time of call drop recently and in the measurement report of the interior UE of setting time section, as this time
Call drop corresponding to call drop receives level.And all of call drop receives level number in timing statisticses T, as call drop sum.
Step 302, judges whether the call drop corresponding to each call drop occurred in nearest a period of time T receives level number
It is zero, if it is, performing step 313, otherwise performs step 303.
Step 303, it is interval that all reception level that will be obtained divide multiple level by setting step-length 1dBm.
Step 304, it is interval for each level, calculate the reception level number/reception level number in level interval
Sum obtains the interval sampled point accounting of the level, wherein, it is the interval reception level of all level to receive level number sum
Number sum.
Step 305, it is interval for each level, calculate the interval number of dropped calls/call drop sum of the level and obtain the level
Interval number of dropped calls accounting, wherein, the interval number of dropped calls of each level is that the call drop in each level interval receives level
Number, call drop sum is the interval number of dropped calls sum of all level.
Step 306, it is interval for each level, according to the sampling that the interval number of dropped calls accounting/level of the level is interval
Point accounting, obtains the interval call drop probability index of the level.
Cell can thus be counted the call drop probability index of call drop occurs under each level value, and receive level
Number can represent user as the sampled point number of cell, each sampled point（UE）It is resident in the case where the sampled point receives level value
A period of time, embody user's perception with call drop probability index.
Step 307, the multiple that will be prestored is ranked up with handoff threshold according to descending order in advance.
Step 308, first using multiple pre- maximums with handoff thresholds as judging object.
Step 309, determines that the pre- call drop probability index interval with the level where handoff threshold, the handoff threshold are added
The interval call drop probability of level where the interval call drop probability index of level where definite value, the handoff threshold reduce definite value refers to
Number.
Step 310, the average value of the call drop probability index of the determination in calculation procedure 309, and whether judge the average value
Not less than setting probability, if it is, performing step 311, step 312 is otherwise performed.
Step 311, using the pre- use handoff threshold as handoff threshold.
Step 312, judges whether the pre- handoff threshold is minimum value in all pre- use handoff thresholds, if it is, holding
Row step 313, otherwise using pre- one after the handoff threshold pre- handoff threshold as judging object and perform step
309。
Step 313, using the minimum value in all pre- use handoff thresholds as handoff threshold.
Based on the inventive concept same with the method for determination intersystem handover thresholding provided in an embodiment of the present invention, the present invention
A kind of device for determining intersystem handover thresholding is additionally provided, as shown in figure 4, including：
Acquiring unit 401, for it needs to be determined that during handoff threshold, obtaining the measurement report that UE is reported in nearest a period of time T
The call drop corresponding to each call drop occurred in reception level in announcement, and a period of time T recently receives level；
First determining unit 402, for all reception level for obtaining to be divided into multiple electricity by the level step of setting
Flat interval, according to the number of dropped calls that each level is interval, determines the interval call drop probability index of each level, it is described each
The interval number of dropped calls of level is that the call drop in each level interval receives level number；
Second determining unit 403, for falling according to the pre- level interval with where handoff threshold of the multiple for prestoring
Words probability index, selection maximum pre- handoff threshold corresponding not less than the call drop probability index of setting probability is used as switching door
Limit, or selection minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is used as handoff threshold.
In described device, the acquiring unit specifically for：
When there is call drop every time, record call drop time and the UE that call drop occurs are identified, away from call drop before searching the call drop time
The measurement report of the UE of the time recently and in setting time section, it is determined that the reception level in the measurement report for finding is to fall
Corresponding call drop receives level during words.
In described device, first determining unit specifically for：
It is interval for each level, by the reception level number in the interval number of dropped calls of the level and level interval
Ratio, as the call drop probability index that the level is interval；Or,
It is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as the level area
Between call drop probability index；Or
Interval for each level, the reception level number/reception level number sum in level interval is obtained
The interval sampled point accounting of the level, the interval call drop of the level is obtained according to the interval number of dropped calls/call drop sum of the level
Number of times accounting, according to the sampled point accounting that the interval number of dropped calls accounting/level of the level is interval, obtains falling for level interval
Words probability index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is
The interval reception level number sum of all level.
In described device, second determining unit specifically for：
According to descending order, since the multiple pre- maximum with handoff threshold, perform successively as follows
Step is to determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or by the previous pre- use of the pre- use handoff threshold
Handoff threshold is used as handoff threshold.
In described device, second determining unit specifically for：
According to descending order, following step is performed successively since the multiple pre- maximum with handoff threshold
It is rapid to determining handoff threshold：
It is determined that where the pre- call drop probability index interval with the level where handoff threshold, the handoff threshold add definite value
The interval call drop probability index of level, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value sets not less than described
Determine probability；
If it is, using the pre- use handoff threshold as handoff threshold.
In corresponding device, second determining unit is additionally operable to：
When the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than setting probability, selection
Minimum value in each pre- use handoff threshold is used as handoff threshold.
In described device, second determining unit is additionally operable to：
It is determined that when there is no call drop in a period of time T recently, multiple that selection is prestored it is pre- with handoff threshold most
Small value is handoff threshold.
The method and device of the determination intersystem handover thresholding provided using the present invention, is had the advantages that：Can be with
Within several hours or even shorter time, the call drop situation according to different districts determines the corresponding switching door in different districts
Limit, such that it is able to obtain the handoff threshold of all cell scenarios, and the handoff threshold for obtaining is more accurately and reliably, saves people
Power material resources, efficiency high.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (14)
1. it is a kind of determine intersystem handover thresholding method, it is characterised in that including：
It needs to be determined that during handoff threshold, the reception level in the measurement report that UE is reported in nearest a period of time T is obtained, and recently
The call drop corresponding to each call drop occurred in a period of time T receives level；
The all reception level for obtaining are divided into multiple level intervals by the level step of setting, according to each level interval
Number of dropped calls, determines the interval call drop probability index of each level, and the interval number of dropped calls of described each level is each
Call drop in level interval receives level number；
The call drop probability index in the level interval according to where the pre- handoff threshold of the multiple for prestoring, selection is not less than setting
The corresponding maximum pre- handoff threshold of call drop probability index of probability is used as handoff threshold, or selection falling less than setting probability
The corresponding minimum pre- handoff threshold of words probability index is used as handoff threshold.
2., the record call drop time and call drop there is in the method for claim 1, it is characterised in that when there is call drop every time
UE marks, obtain the reception level corresponding to each call drop occurred in nearest a period of time T, specifically include：
The measurement report of the UE before searching the call drop time away from the call drop time recently and in setting time section, it is determined that finding
Measurement report in reception level when being call drop corresponding call drop receive level.
3. the method for claim 1, it is characterised in that according to the number of dropped calls that each level is interval, determine each institute
The interval call drop probability index of level is stated, is specifically included：
It is interval for each level, by the ratio of the reception level number in the interval number of dropped calls of the level and level interval
Value, as the call drop probability index that the level is interval；Or,
It is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as level interval
Call drop probability index；Or
Interval for each level, the reception level number/reception level number sum in level interval obtains the electricity
Interval sampled point accounting is equalled, the interval number of dropped calls of the level is obtained according to the interval number of dropped calls/call drop sum of the level
Accounting, according to the sampled point accounting that the interval number of dropped calls accounting/level of the level is interval, obtains the interval call drop of the level general
Rate index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is all
The interval reception level number sum of level.
4. the method for claim 1, it is characterised in that the electricity according to where the pre- handoff thresholds of the multiple for prestoring
Interval call drop probability index is put down, selection is made with handoff threshold in advance not less than the corresponding maximum of call drop probability index of setting probability
It is handoff threshold, or selection minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is used as switching door
Limit, specifically includes：
According to descending order, since the multiple pre- maximum with handoff threshold, following steps are performed successively
To determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or the previous pre- of the pre- use handoff threshold is used into switching
Thresholding is used as handoff threshold.
5. the method for claim 1, it is characterised in that where the pre- handoff thresholds of multiple that the basis is prestored
The interval call drop probability index of level, selection is corresponding not less than the call drop probability index of setting probability maximum pre- with switching door
Limit is specifically included as handoff threshold：
According to descending order, performed successively since the multiple pre- maximum with handoff threshold following steps to
Determine handoff threshold：
It is determined that the level where adding definite value with the interval call drop probability index of the level where handoff threshold, the handoff threshold in advance
Interval call drop probability index, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value is general not less than the setting
Rate；
If it is, using the pre- use handoff threshold as handoff threshold.
6. the method as described in Claims 1 to 5 is any, it is characterised in that also include：
When the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than setting probability, each is selected
The pre- minimum value with handoff threshold is used as handoff threshold.
7. the method for claim 1, it is characterised in that also include：
It is determined that when there is no call drop in a period of time T recently, the pre- minimum value with handoff threshold of multiple that selection is prestored
It is handoff threshold.
8. it is a kind of determine intersystem handover thresholding device, it is characterised in that including：
Acquiring unit, for it needs to be determined that during handoff threshold, obtaining connecing in the measurement report that UE is reported in nearest a period of time T
Receive the call drop corresponding to each call drop occurred in level, and a period of time T recently and receive level；
First determining unit, for all reception level for obtaining to be divided into multiple level intervals by the level step of setting,
According to the number of dropped calls that each level is interval, the interval call drop probability index of each level, described each level area are determined
Between number of dropped calls be each level interval in call drop receive level number；
Second determining unit, for being referred to according to the pre- call drop probability interval with the level where handoff threshold of the multiple for prestoring
Number, selection maximum pre- handoff threshold corresponding not less than the call drop probability index of setting probability is used as handoff threshold, Huo Zhexuan
Minimum pre- handoff threshold corresponding less than the call drop probability index of setting probability is selected as handoff threshold.
9. device as claimed in claim 8, it is characterised in that the acquiring unit specifically for：
When there is call drop every time, record call drop time and the UE that call drop occurs are identified, away from the call drop time before searching the call drop time
The measurement report of the UE recently and in setting time section, it is determined that when the reception level in the measurement report for finding is call drop
Corresponding call drop receives level.
10. device as claimed in claim 8, it is characterised in that first determining unit specifically for：
It is interval for each level, by the ratio of the reception level number in the interval number of dropped calls of the level and level interval
Value, as the call drop probability index that the level is interval；Or,
It is interval for each level, by the ratio that the interval number of dropped calls of the level is total with call drop, as level interval
Call drop probability index；Or
Interval for each level, the reception level number/reception level number sum in level interval obtains the electricity
Interval sampled point accounting is equalled, the interval number of dropped calls of the level is obtained according to the interval number of dropped calls/call drop sum of the level
Accounting, according to the sampled point accounting that the interval number of dropped calls accounting/level of the level is interval, obtains the interval call drop of the level general
Rate index；
Wherein, the call drop sum is the interval number of dropped calls sum of all level, and the reception level number sum is all
The interval reception level number sum of level.
11. devices as claimed in claim 8, it is characterised in that second determining unit specifically for：
According to descending order, since the multiple pre- maximum with handoff threshold, following steps are performed successively
To determining handoff threshold：
Whether the call drop probability index in the level interval where judging pre- handoff threshold is not less than the setting probability；
If it is, using the pre- use handoff threshold as handoff threshold, or the previous pre- of the pre- use handoff threshold is used into switching
Thresholding is used as handoff threshold.
12. devices as claimed in claim 8, it is characterised in that second determining unit specifically for：
According to descending order, performed successively since the multiple pre- maximum with handoff threshold following steps to
Determine handoff threshold：
It is determined that the level where adding definite value with the interval call drop probability index of the level where handoff threshold, the handoff threshold in advance
Interval call drop probability index, the handoff threshold reduce definite value where the interval call drop probability index of level；
Three average values of call drop probability index of the determination are calculated, judges whether the average value is general not less than the setting
Rate；
If it is, using the pre- use handoff threshold as handoff threshold.
13. device as described in claim 8~12 is any, it is characterised in that second determining unit is additionally operable to：
When the call drop probability index in the level interval where determining each pre- use handoff threshold is both less than setting probability, each is selected
The pre- minimum value with handoff threshold is used as handoff threshold.
14. devices as claimed in claim 8, it is characterised in that second determining unit is additionally operable to：
It is determined that when there is no call drop in a period of time T recently, the pre- minimum value with handoff threshold of multiple that selection is prestored
It is handoff threshold.
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| CN105611569B (en) * | 2016-01-06 | 2019-04-05 | Oppo广东移动通信有限公司 | A kind of report method and mobile terminal of channel quality information |
| CN110035464B (en) * | 2018-01-11 | 2021-01-05 | 华为技术有限公司 | Switching method, terminal equipment and network equipment |
| CN111083757A (en) * | 2018-10-22 | 2020-04-28 | 奇酷互联网络科技（深圳）有限公司 | Mobile terminal, network selection method and storage medium |
| CN114630378B (en) * | 2021-03-26 | 2024-01-09 | 亚信科技（南京）有限公司 | Network split determination method, device, server and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247621A (en) * | 2008-03-28 | 2008-08-20 | 北京天碁科技有限公司 | TD-SCDMA signal estimation method for measuring 3a event and 3a event detecting report method |
| CN101888680A (en) * | 2009-05-11 | 2010-11-17 | 联芯科技有限公司 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
| CN102209338A (en) * | 2011-06-10 | 2011-10-05 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
-
2013
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247621A (en) * | 2008-03-28 | 2008-08-20 | 北京天碁科技有限公司 | TD-SCDMA signal estimation method for measuring 3a event and 3a event detecting report method |
| CN101888680A (en) * | 2009-05-11 | 2010-11-17 | 联芯科技有限公司 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
| CN102209338A (en) * | 2011-06-10 | 2011-10-05 | 北京邮电大学 | Switching self-optimizing method for mobile communication network |
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