CN102256299A - Terminal measurement reporting method and device - Google Patents
Terminal measurement reporting method and device Download PDFInfo
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- CN102256299A CN102256299A CN2011101880274A CN201110188027A CN102256299A CN 102256299 A CN102256299 A CN 102256299A CN 2011101880274 A CN2011101880274 A CN 2011101880274A CN 201110188027 A CN201110188027 A CN 201110188027A CN 102256299 A CN102256299 A CN 102256299A
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Abstract
The invention discloses a user terminal measurement reporting method and device. The method comprises the following steps: a user terminal performs measurement according to measurement event information issued by a network side; when the user terminal detects that detected parameters indicated by a measurement event meet the set conditions of the measurement event, if the detected adjacent cell is the same to the source cell switched at last time and the current time from last switching does not exceed the set time duration, the Timeto-Trigger of the measurement event is prolonged, and measurement reporting judgment is performed on the measurement event according to the prolonged Timeto-Trigger; otherwise, the user terminal performs measurement reporting judgment according to the Timeto-Trigger of the measurement event; and the user terminal reports measurement according to the measurement reporting judgment result. By using the method and the device provided by the invention, ping-pong switching can be avoided to a certain extent.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of terminal and measure report method and device thereof.
Background technology
When using the user of network service to move to another sub-district from a sub-district, handover can take place.In order to guarantee professional continuity, mobile communication system need be supported handoff functionality.Usually, switching is based on the measurement realization.TD-SCDMA(Time-Division Synchronization Code Division-Multiple-Access, Time Division-Synchronous Code Division Multiple Access), W-CDMA(Wideband CDMA, Wideband Code Division Multiple Access (WCDMA)) etc. in the system, UE(User Equipment, subscriber equipment or user terminal) common frequency measurement (as the 1G event report), different-frequency measure (as the 2A/2B event report), system's measurements (as the 3A event report) etc. can trigger switching.
The UE measurement is by RNC(Radio Network Controller, radio network controller) send MEASUREMENT CONTROL(measurement control to UE) the message initiation.After UE receives MEASUREMENT CONTROL message, will measure, and when satisfying report condition, send MEASUREMENT REPORT(measurement report to RNC according to the control information of stipulating in the message) message, measurement result is reported.RNC reports according to the measurement of UE, carries out switch decision and trigger switching, and its process as shown in Figure 1.
Below, be the process that reports of example explanation UE measurement with UE common frequency measurement and different-frequency measure.
(a) common frequency measurement
If RNC is provided with and reports criterion is the 1G Event triggered, then when the UE measurement result satisfies the 1G incident, will report MEASUREMENT REPORT message in MEASUREMENT CONTROL message.The condition of 1G event report is:
In the time of Time-to-trigger, homogeneous-frequency adjacent-domain
iWith the PCCPCH RSCP(PCCPCH of Serving cell be the english abbreviation of Primary Common Control Physical Channel, Chinese is expressed as Primary Common Control Physical Channel; RSCP is the english abbreviation of Received Signal Code Power, and Chinese is expressed as received signal code power) measured value satisfies formula (1), and the adjacent area
iNot in Triggered_1G_Event tabulation (table of UE internal maintenance has only service cell information when initial).
Each parameter declaration in the formula (1) can be referring to table 1:
Table 1
When the current PCC PCH RSCP measured value of sub-district among the tabulation Triggered_1G_Event satisfied formula (2), UE deleted this sub-district from Triggered_1G_Event.
Lag parameter that gives the correct time in the UE measurement the personalized offset parameter in sub-district, 1G incident required and Time-to-trigger parameter etc. all send in the system broadcast message of UE or the MEASUREMENT CONTROL message at RNC and carry.
(b) different-frequency measure
If RNC is provided with and reports criterion is the 2A Event triggered, then when the UE measurement result satisfies the 2A incident, will report MEASUREMENT REPORT message in MEASUREMENT CONTROL message.The condition of 2A event report is:
In the time of Time-to-trigger, the alien frequencies adjacent area
iFrequency
jSatisfy formula (3) (comprising formula 3a and formula 3b) with the PCCPCH RSCP measured value of Serving cell.
Parameter declaration in the formula (3) is referring to table 2:
Table 2
For a plurality of alien frequencies adjacent area, have a plurality of
A plurality of
In, UE selects of maximum, as the quality estimated result of this frequency.Wherein, so-called optimum frequency sub-district and non-optimum frequency sub-district are meant the frequency that whether is stored among tabulation Best_Frequency_2A _ Event.This tabulation is by the UE internal maintenance, and during initialization, optimum frequency is the frequency of Serving cell.
Lag parameter that gives the correct time in the UE measurement the personalized offset parameter in sub-district, 2A incident required and Time-to-trigger parameter etc. all send in the system broadcast message of UE or the MEASUREMENT CONTROL message at RNC and carry.
As above UE gives the correct time on measuring, and all can use Time to Trigger parameter.Time to Trigger parameter is at being provided with separately with different event such as frequency, alien frequencies and system's measurements, and the tested entity of this parametric representation reaches the duration that requires behind the thresholding.If Time to Trigger parameter is provided with too for a short time, may cause unnecessary switching; On the contrary,, can make handoff procedure time lengthening again, may cause causing handoff failure owing to can't in time switching if be provided with too muchly.
In real network, the table tennis that takes place to be caused by reasons such as wireless signal shakes through regular meeting switches phenomenon, and promptly the user carries out handoff procedure continually with ping-pong between two sub-districts, comprise with switch frequently, alien frequencies switches and system between switch etc.Like this, cause eating dishes without rice or wine the little interruption that big signaling consumption, speech and data often continue and the user experience of difference.And in the prior art, the mechanism that reports that UE measures is not still evaded the consideration of the switching problem of rattling at present.
Summary of the invention
The embodiment of the invention has proposed a kind of terminal and has measured report method and device thereof, is used for solving to a certain extent the table tennis switching problem of mobile communication system.
The user terminal measurement report method that the embodiment of the invention provides comprises:
User terminal is measured according to the measurement event information that network side issues;
When described user terminal detects the indicated measured parameter of measurement event and satisfies imposing a condition of this measurement event, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described measurement event, and described measurement event measurement is reported judgement according to the Time to-Trigger after prolonging; Otherwise described user terminal reports judgement according to the Time to-Trigger measurement of described measurement event;
Described user terminal reports the court verdict measurement to report according to measurement.
The user terminal that the embodiment of the invention provides comprises:
Measurement module, the measurement event information that is used for issuing according to network side is measured;
Report judging module, be used for when detecting the indicated measured parameter of measurement event and satisfy imposing a condition of this measurement event, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described measurement event, and described measurement event measurement is reported judgement according to the Time to-Trigger after prolonging; Otherwise, report judgement according to the Time to-Trigger measurement of described measurement event;
Reporting module is used for reporting the court verdict measurement of judging module to report according to described.
The above embodiment of the present invention, by report the Time to-Trigger that dynamically adjusts measurement event in the judging process in measurement, promptly, when the cell-of-origin that survey adjacent area and last time switch identical, and current the switching apart from last time surpasses when setting duration, prolong the Time to-Trigger of this measurement event, report opportunity, and then avoid table tennis to switch to a certain extent thereby delay this measurement event.
Description of drawings
Fig. 1 be in the prior art RNC according to the measurement report of UE;
Fig. 2 measures the report flow schematic diagram for the UE that the embodiment of the invention provides;
The schematic flow sheet of the Time-to-trigger of the adjustment measurement event that Fig. 3 provides for the embodiment of the invention;
The UE structural representation that Fig. 4 provides for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Referring to Fig. 2, the UE that provides for the embodiment of the invention measures the report flow schematic diagram, and this flow process can comprise:
Usually, the RNC of network side can send to the UE measuring control information in the system broadcast message of UE or the MEASUREMENT CONTROL message at RNC and carry, and UE can start measurement after receiving measuring control information.Measuring object, the metrical information that need report be can comprise in the measuring control information, criterion (as Event triggered) and Report mode reported.
For example, for the 1G incident of common frequency measurement, work as homogeneous-frequency adjacent-domain
iSatisfy formula (1) with the PCCPCH RSCP measured value of Serving cell, and the adjacent area
iIn the time of not in the Triggered_1G_Event tabulation, then change step 203 over to.For the 1G incident of different-frequency measure, when the alien frequencies adjacent area
iFrequency
jSatisfy formula (3) when (comprising formula 3a and formula 3b) with the PCCPCH RSCP measured value of Serving cell, then change step 203 over to.
In the above-mentioned flow process, UE judges the step that the cell-of-origin of switching institute adjacent area of surveying and last time is whether identical, and UE judge current apart from switching last time above the step of setting duration, can exchange sequence.
In the embodiment of the invention, at UE with frequently, between alien frequencies or system etc. the employed Time-to-trigger parameter of measurement event, introduce zoom factor respectively, so that UE prolongs the Time to-Trigger of this measurement event according to the Time to-Trigger zoom factor corresponding with measurement event.
The measurement event that goes up configuration with UE comprises that with measurement event such as between frequency, alien frequencies, system be example below, further specifies the implementation procedure of the above embodiment of the present invention.
Introduce zoom factor at UE respectively with the employed Time-to-trigger IE of measurement event such as between frequency, alien frequencies, system, wherein:
Intra-frequency Scaling Factor for Time-to-trigger is the zoom factor of same frequency measuring case correspondence;
Inter-frequency Scaling Factor for Time-to-trigger is the zoom factor of different-frequency measure incident correspondence;
Inter-RAT Scaling Factor for Time-to-trigger is the zoom factor of isosystem measurement incident correspondence.
RNC notifies UE following parameter (concrete parameter name, scope, step-length etc. only are example) as shown in table 1 by system broadcast message or MEASUREMENT CONTROL message:
Table 1
As shown in table 1, the value type of each zoom factor is Real, and span is [1,4.75], and step-length (step) is 0.25.RNC can specify the zoom factor of unique value at each measurement event in the span of the corresponding zoom factor of table 1 defined, and arrives UE by system broadcast message or MEASUREMENT CONTROL message arrangement.
A variable Tag is set on UE, and initialization Tag=0.The implication of this variable is: be used to identify UE and switch the time interval of finishing (success) back experience and whether surpass the default time interval, when Tag=0, expression surpasses the time interval of setting, otherwise when Tag=1, expression surpasses the time interval of setting.
In the embodiment of the invention, behind the each successful switch of UE, start a timer, the timer run duration is put Tag=1; If timer expiry is then put Tag=0.Length of timer rule of thumb is worth and is preset among the UE.Simultaneously, require the source Serving cell sign when the UE storage is last switches, and behind each successful switch, all upgrade this sign.
Detecting measured parameter in UE carries out the process of nearby region measurement satisfies certain condition (as reach measurement event set thresholding) and when the needs measurement reports judgement, carries out measurement event according to following principle and report judgement:
If the source Serving cell that switches of the adjacent area of surveying and UE last time of being write down identical, and and homogeneous-frequency adjacent-domain relation each other between the Serving cell at the current place of UE, and Tag=1(shows that the current time interval apart from last switching does not also exceed default duration), then use the Time-to-trigger of Intra-frequency Scaling Factor for Time-to-trigger and same frequency measuring case to multiply each other, to adjust the Time-to-trigger of this same frequency measuring case, carry out same frequency measuring case according to adjusted Time-to-trigger then and report judgement; If above-mentioned condition has one not satisfy, then original Time-to-trigger measurement reports judgement according to this same frequency measuring case;
If the source Serving cell that switches of the adjacent area of surveying and UE last time of being write down identical, and and alien frequencies neighboring BS relationship each other between the Serving cell at the current place of UE, and Tag=1, then use the Time-to-trigger of Inter-frequency Scaling Factor for Time-to-trigger and different-frequency measure incident to multiply each other, to adjust the Time-to-trigger of this different-frequency measure incident, carry out the judgement of different-frequency measure reporting events according to adjusted this Time-to-trigger then; If above-mentioned condition has one not satisfy, then original Time-to-trigger measurement reports judgement according to this different-frequency measure incident;
If the source Serving cell that switches of the adjacent area of surveying and UE last time of being write down identical, and and neighboring BS relationship between system each other between the Serving cell at the current place of UE, and Tag=1, then use the Time-to-trigger of Inter-RAT Scaling Factor for Time-to-trigger and isosystem measurement incident to multiply each other, to adjust the Time-to-trigger of this isosystem measurement incident, carry out the judgement of isosystem measurement reporting events according to adjusted this Time-to-trigger then; If above-mentioned condition has one not satisfy, then original Time-to-trigger measurement reports judgement according to this isosystem measurement incident.
Fig. 3 shows the flow process of the Time-to-trigger of measurement event being adjusted according to above principle.As shown in the figure, measurement reports when judgement (step 301) according to measurement event as UE, if the source server sub-district of the institute adjacent area of surveying during with this UE last time switching is identical, judge then whether Tag equals 1, if then UE uses the zoom factor of this measurement event to adjust Time-to-trigger(step 302, step 303 and the step 304 of this measurement event); If the inequality or Tag of the source Serving cell that the adjacent area of surveying and UE are last when switching be not equal to 1, then UE does not adjust (step 302, step 303 and step 305) to the Time-to-trigger of this measurement event.
Need to prove, what introduce in the above-mentioned example of the present invention is that zoom factor is a coefficient, to satisfying the Time-to-trigger of above-mentioned condition, by this coefficient and this Time-to-trigger are multiplied each other this Time-to-trigger is revised: Scaling Factor for Time-to-trigger * Time-to-trigger.During concrete enforcement, also can use other correcting mode, as introduce correction and (perhaps claim increment, be expressed as Delta for Time-to-trigger) Time-to-trigger is revised, as Time-to-trigger+Delta for Time-to-trigger, it is constant that other handles operation.These belong to the protection content of this patent equally.
Table 2 shows a kind ofly introduces the example of the zoom factor of incremental form at UE respectively with the employed Time-to-trigger IE of measurement event such as between frequency, alien frequencies, system, wherein:
Intra-frequency Delta for Time-to-trigger is the increment of same frequency measuring case correspondence;
Inter-frequency Delta for Time-to-trigger is the increment of different-frequency measure incident correspondence;
Inter-RAT Delta for Time-to-trigger is the increment of isosystem measurement incident correspondence.
Table 2
As shown in table 2, the span of each increment is [0,5000ms], and step-length (step) is 10ms.RNC can specify the zoom factor of unique value at each measurement event in the span of the corresponding zoom factor of table 2 defined, and arrives UE by system broadcast message or MEASUREMENT CONTROL message arrangement.
By above description as can be seen, the embodiment of the invention is by reporting the Time to-Trigger that dynamically adjusts measurement event in the judging process in measurement, promptly, when the cell-of-origin that survey adjacent area and last time switch identical, and current the switching apart from last time surpasses when setting duration, prolong the Time to-Trigger of this measurement event, thereby avoid table tennis to switch to a certain extent.This is because if UE judgement measurement event satisfies report condition, but the duration of switching time current time apart from last time surpasses and set duration and just measure and report, and might just carry out the sub-district and switch in this sets duration, thereby cause the table tennis switching problem.The embodiment of the invention passes through to prolong the Time to-Trigger of this measurement event, and uses the Time to-Trigger measurement after prolonging to report judgement, measures the opportunity that reports thereby delay, thereby has also just avoided the sub-district switching to a certain extent.
Based on identical technical conceive, the embodiment of the invention also provides a kind of UE.
Referring to Fig. 4, the structural representation of the UE that provides for the embodiment of the invention.As shown in the figure, this UE can comprise:
Reporting module 403 is used for reporting the court verdict measurement of judging module to report according to described.
Described measurement event comprises one of same frequency measuring case, different-frequency measure incident, isosystem measurement incident or combination in any; Accordingly, report judging module 402 can comprise one of following submodule or combination in any:
With frequently adjudicating submodule 4021, be used for when the measuring object of same frequency measuring case reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with sub-district, the current place of described user terminal homogeneous-frequency adjacent-domain each other, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described same frequency measuring case, and described same frequency measuring case measurement is reported judgement according to the Time to-Trigger after prolonging;
Alien frequencies judgement submodule 4022, be used for when the measuring object of different-frequency measure incident reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with alien frequencies adjacent area each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described different-frequency measure incident, and measurement reports judgement to described different-frequency measure incident according to the Time to-Trigger after prolonging;
Different system determination submodule 4023, be used for when the measuring object of isosystem measurement incident reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and and adjacent area between system each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described isosystem measurement incident, and measurement reports judgement to described isosystem measurement incident according to the Time to-Trigger after prolonging.
For each measurement event corresponding Time to-Trigger zoom factor is set in advance; Accordingly, report judging module 403 to prolong the Time to-Trigger of described measurement event according to the Time to-Trigger zoom factor corresponding with described measurement event.
Described Time to-Trigger zoom factor is to be not less than 1 coefficient, and is corresponding, reports judging module 402 to prolong current Time to-Trigger by with current Time to-Trigger and described multiplication; Perhaps, Time to-Trigger zoom factor is to be not less than 1 increment, and is corresponding, reports judging module 402 to prolong current Time to-Trigger by with current Time to-Trigger and described increment addition.
In the above-mentioned user terminal, the measurement event information that reports judging module 402 to issue by network side is obtained the Time to-Trigger zoom factor that wherein carries.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (10)
1. a user terminal measurement report method is characterized in that, this method comprises:
User terminal is measured according to the measurement event information that network side issues;
When described user terminal detects the indicated measured parameter of measurement event and satisfies imposing a condition of this measurement event, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described measurement event, and described measurement event measurement is reported judgement according to the Time to-Trigger after prolonging; Otherwise described user terminal reports judgement according to the Time to-Trigger measurement of described measurement event;
Described user terminal reports the court verdict measurement to report according to measurement.
2. the method for claim 1 is characterized in that, described measurement event comprises one of same frequency measuring case, different-frequency measure incident, isosystem measurement incident or combination in any;
When described user terminal reaches the thresholding of correspondence at the measuring object of same frequency measuring case, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with sub-district, the current place of described user terminal homogeneous-frequency adjacent-domain each other, and current the switching apart from last time do not surpass the setting duration, then prolongs the Time to-Trigger of described same frequency measuring case; Perhaps
When described user terminal reaches the thresholding of correspondence at the measuring object of different-frequency measure incident, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with alien frequencies adjacent area each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolongs the Time to-Trigger of described different-frequency measure incident; Perhaps
When described user terminal reaches the thresholding of correspondence at the measuring object of isosystem measurement incident, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and and adjacent area between system each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolongs the Time to-Trigger of described isosystem measurement incident.
3. the method for claim 1 is characterized in that, for each measurement event corresponding Time to-Trigger zoom factor is set in advance;
Described user terminal prolongs the Time to-Trigger of described measurement event according to the Time to-Trigger zoom factor corresponding with described measurement event.
4. method as claimed in claim 3 is characterized in that, described Time to-Trigger zoom factor is to be not less than 1 coefficient, and described user terminal prolongs current Time to-Trigger by with current Time to-Trigger and described multiplication; Perhaps
Described Time to-Trigger zoom factor is to be not less than 1 increment, and described user terminal prolongs current Time to-Trigger by with current Time to-Trigger and described increment addition.
5. method as claimed in claim 3 is characterized in that, described user terminal obtains the Time to-Trigger zoom factor that wherein carries by the measurement event information that network side issues.
6. a user terminal is characterized in that, comprising:
Measurement module, the measurement event information that is used for issuing according to network side is measured;
Report judging module, be used for when detecting the indicated measured parameter of measurement event and satisfy imposing a condition of this measurement event, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described measurement event, and described measurement event measurement is reported judgement according to the Time to-Trigger after prolonging; Otherwise, report judgement according to the Time to-Trigger measurement of described measurement event;
Reporting module is used for reporting the court verdict measurement of judging module to report according to described.
7. user terminal as claimed in claim 6 is characterized in that, described measurement event comprises one of same frequency measuring case, different-frequency measure incident, isosystem measurement incident or combination in any; The described judging module that reports comprises one of following submodule or combination in any:
With frequently adjudicating submodule, be used for when the measuring object of same frequency measuring case reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with sub-district, the current place of described user terminal homogeneous-frequency adjacent-domain each other, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described same frequency measuring case, and described same frequency measuring case measurement is reported judgement according to the Time to-Trigger after prolonging;
Alien frequencies judgement submodule, be used for when the measuring object of different-frequency measure incident reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and with alien frequencies adjacent area each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described different-frequency measure incident, and measurement reports judgement to described different-frequency measure incident according to the Time to-Trigger after prolonging;
Different system determination submodule, be used for when the measuring object of isosystem measurement incident reaches the thresholding of correspondence, if the cell-of-origin of the institute's adjacent area of surveying and last time switching is identical and and adjacent area between system each other, sub-district, the current place of described user terminal, and current the switching apart from last time do not surpass the setting duration, then prolong the Time to-Trigger of described isosystem measurement incident, and measurement reports judgement to described isosystem measurement incident according to the Time to-Trigger after prolonging.
8. user terminal as claimed in claim 6 is characterized in that, for each measurement event corresponding Time to-Trigger zoom factor is set in advance;
The described judging module that reports specifically is used for, and the Time to-Trigger zoom factor according to corresponding with described measurement event prolongs the Time to-Trigger of described measurement event.
9. user terminal as claimed in claim 8, it is characterized in that described Time to-Trigger zoom factor is to be not less than 1 coefficient, the described judging module that reports specifically is used for, by with current Time to-Trigger and described multiplication, prolong current Time to-Trigger; Perhaps
Described Time to-Trigger zoom factor is to be not less than 1 increment, and the described judging module that reports specifically is used for, and by with current Time to-Trigger and described increment addition, prolongs current Time to-Trigger.
10. user terminal as claimed in claim 8 is characterized in that, the described judging module that reports specifically is used for, and by the measurement event information that network side issues, obtains the Time to-Trigger zoom factor that wherein carries.
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Application publication date: 20111123 |