CN102917380A - Cell measurement method and device - Google Patents
Cell measurement method and device Download PDFInfo
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- CN102917380A CN102917380A CN2012103803794A CN201210380379A CN102917380A CN 102917380 A CN102917380 A CN 102917380A CN 2012103803794 A CN2012103803794 A CN 2012103803794A CN 201210380379 A CN201210380379 A CN 201210380379A CN 102917380 A CN102917380 A CN 102917380A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a cell measurement method and device. The cell measurement method comprises the following steps: when receiving a cell measurement result in a current measurement cycle, user equipment (UE) acquires signal strength information of a current serving cell according to the measurement result; the UE determines whether regulation of the current measurement cycle is carried out or not according to the signal strength information and a set regulation rule for measurement cycles; and if yes, regulation of the current measurement cycle is carried out and using the regulated current measurement cycle to measure the cell. According to the invention, power consumption and CPU (Central Processing Unit) consumption brought by measurement can be effectively reduced, the number of message interaction generated by the measurement is reduced, and the measurement consumption is reduced on the premise of not influencing the measurement performance.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of cell measuring method and device.
Background technology
At LTE(Long Term Evolution, Long Term Evolution) in the system, UE(User Equipment, subscriber equipment) under Idle state and connected state, all can be used for the measurement of Monitoring Service residential quarter and adjacent cell signal strength signal intensity, provide measuring data sample for the measurement of cell reselection and various purposes reports.
The measurement parameter that UE measures is by RRC(Radio Resource Control, radio resource control) configuration, measuring process is carried out by PHY layer (Physical Layer, physical layer).The measurement of PHY layer is controlled by rrc layer, the frequency, residential quarter, measuring amount (the RSRP(ReferenceSignal Receiving Power that comprise measurement, the reference information received power), RSRQ(Reference SignalReceiving Quality, the reference information quality of reception) etc.).Do not stipulate in the existing protocol that PHY carries out cycle or the time interval of measuring, at present, UE generally uses the fixed cycle measure signal intensity, can be divided into Idle state measurement and connected state measurement according to the process difference.
UE initially start shooting or leave connected state after can carry out Idle state and measure, measurement procedure comprises as shown in Figure 1: step S102: at first carry out Cell searching, carry out the residential quarter and select; Step S104: then in selected Serving cell read system information and finish resident; Step S106:RRC is according to the neighboring BS information that carries in the system information, and configuration PHY carries out Idle state and measures; Step S108:PHY is according to detecting Serving cell and neighboring area signal fixing measuring period; Step S110:PHY reports RRC with measurement result.The main purpose of measuring under Idle state is to carry out cell reselection, makes the UE can be resident in the better residential quarter of signal.After UE was resident, RRC is the configuration service cell measurement at first, when Serving cell signal variation, can trigger the adjacent cell measurement configuration, after adjacent cell satisfies reselection conditions, will initiate gravity treatment to adjacent cell by RRC control.
UE enters connected state after Serving cell is finished random access, carry out connected state and measure.The connected state measurement procedure of UE comprises as shown in Figure 2: step S202:UE enters connected state after Serving cell is finished random access; Step S204:UE receives that under connected state the RRC that eats dishes without rice or wine connects reconfiguration message, reads measurement configuration parameter wherein; Step S206:RRC carries out the connected state measurement according to measuring configuration parameter configuration PHY; Step S208:PHY uses fixation measuring cycle detection Serving cell and neighboring area signal; Step S210:PHY reports RRC with measurement result.The measurement of UE under connected state refers to that mainly eNB connects the measurement of reconfiguration message configuration by RRC, the purpose of these measurements is monitor service residential quarter and neighboring area signal equally, when satisfying certain condition, trigger UE and send the measurement reporting message to eNB, thus the relevant flow process of the mobility such as triggering cell switching.
In whole measuring process, no matter at Idle state or connected state, RRC can not control the measuring period of PHY, uses measure Monitoring Service residential quarter and adjacent cell signal fixing measuring period by PHY fully.Yet under a lot of scenes, UE does not need to use the fixed cycle to measure, and measured value is frequently monitored.For example, when UE is in the Serving cell center, be not easy to occur gravity treatment or switching; Perhaps, in non-moving property scene or at a slow speed in the mobile context, the RSRP value of UE changes very slow, under these scenes, still use fixing measuring period, virtually increased the invalid measurement number of times of PHY, increased the cpu resource expense of UE, be unfavorable for reducing power consumption, be unfavorable for economize on electricity.
Summary of the invention
The invention provides a kind of cell measuring method and device, use the fixation measuring cycle to carry out cell measurement to solve existing UE, increase invalid measurement number of times and cpu resource expense, be unfavorable for reducing the problem of power consumption and economize on electricity.
In order to address the above problem, the invention discloses a kind of cell measuring method, comprising: when user equipment (UE) is received the cell measurement results of current measuring period, obtain the signal strength information of current service cell according to described measurement result; According to regulation rule measuring period of described signal strength information and setting, judge whether adjusting described current measuring period; If then to adjusting described current measuring period, and use and carry out measuring period after adjusting cell measurement.
Preferably, comprise a plurality of the measuring period of carrying out described cell measurement, and the periodic quantity in the periodic quantity of a measuring period in described a plurality of measuring periods and the former fixation measuring cycle of described UE is identical.
Preferably, comprise three measuring periods described a plurality of measuring periods, is respectively the first measuring period, the second measuring period and the 3rd measuring period; Wherein, the periodic quantity of described the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of described UE; The periodic quantity of described the second measuring period is two times of periodic quantity of described the first measuring period; The periodic quantity of described the 3rd measuring period is four times of periodic quantity of described the first measuring period.
Preferably, the maximum cycle value in described a plurality of measuring period is less than or equal to the spacing value that reports of described measurement result.
Preferably, described when UE receives the cell measurement results of current measuring period, obtain according to described measurement result before the step of signal strength information of current service cell, also comprise: be described the first measuring period the acquiescence measuring period that arranges that described UE carries out that Idle state measures.
Preferably, when described UE carries out Idle state when measuring, the described step of obtaining the signal strength information of current service cell according to described measurement result comprises: the residential quarter selective reception grade point Srxlev that obtains current service cell according to described measurement result; Described regulation rule measuring period according to described signal strength information and setting judges whether adjusting described current measuring period; If then to adjusting described current measuring period, and use the step of carrying out cell measurement measuring period after adjusting to comprise: judge described Srxlev and measure threshold value S
IntraSearchPDifference and the relation of the first setting threshold and the second setting threshold; If described Srxlev and S
IntraSearchPDifference be less than or equal to described the first setting threshold, then be adjusted into described the first measuring period current measuring period, and use and carry out cell measurement described the first measuring period; If described Srxlev and S
IntraSearchPDifference greater than described the first setting threshold and be less than or equal to described the second setting threshold, then be adjusted into described the second measuring period current measuring period, and use and carry out cell measurement described the second measuring period; If described Srxlev and S
IntraSearchPDifference greater than described the second setting threshold, then be adjusted into described the 3rd measuring period current measuring period, and use and carry out cell measurement described the 3rd measuring period; Wherein, described the first setting threshold is less than described the second setting threshold.
Preferably, described the first setting threshold is 10, and described the second setting threshold is 20.
Preferably, described when UE receives the cell measurement results of current measuring period, obtain according to described measurement result before the step of signal strength information of current service cell, also comprise: when described UE had configured nearby region measurement, be described the first measuring period the acquiescence measuring period that arranges that described UE carries out that connected state measures; As described UE when configuring adjacent cell is measured, be described the 3rd measuring period the acquiescence measuring period that arranges that described UE carries out that connected state measures, and be arranged in the described connected state measuring process, not to adjusting described measuring period.
Preferably, when described UE carries out that connected state is measured and when having configured nearby region measurement, the described step of obtaining the signal strength information of current service cell according to described measurement result comprises: obtain M according to described measurement result
sValue and M
N, maxValue, wherein, described M
sThe Reference Signal Received Power RSRP value of the described current service cell of value representation, described M
N, maxMaximum RSRP value in the RSRP value of all adjacent areas of the described current service cell of value representation; Described regulation rule measuring period according to described signal strength information and setting judges whether adjusting described current measuring period; If then to adjusting described current measuring period, and use the step of carrying out cell measurement measuring period after adjusting to comprise: to judge described M
sValue and M
N, maxThe difference of value and the relation of the 3rd setting threshold and the 4th setting threshold; If described M
sValue and M
N, maxThe difference of value is less than or equal to described the 3rd setting threshold, then is adjusted into described the first measuring period current measuring period, and uses and carry out cell measurement described the first measuring period; If described M
sValue and M
N, maxThe difference of value is greater than described the 3rd setting threshold and be less than or equal to described the 4th setting threshold, then is adjusted into described the second measuring period current measuring period, and uses and carry out cell measurement described the second measuring period; If described M
sValue and M
N, maxThe difference of value then is adjusted into current measuring period described the 3rd measuring period, and uses and carry out cell measurement described the 3rd measuring period greater than described the 4th setting threshold; Wherein, described the 3rd setting threshold is less than described the 4th setting threshold.
Preferably, described the 3rd setting threshold is 10, and described the 4th setting threshold is 20.
In order to address the above problem, the invention also discloses a kind of cell measurement device, comprise: acquisition module is used for obtaining the signal strength information of current service cell according to described measurement result when user equipment (UE) is received the cell measurement results of current measuring period; Judge module is used for regulation rule measuring period according to described signal strength information and setting, judges whether adjusting described current measuring period; Adjusting module be yes if be used for the judged result of described judge module, then to adjusting described current measuring period, and uses and carries out measuring period after the adjustment cell measurement.
Preferably, comprising three measuring periods described measuring period, is respectively the first measuring period, the second measuring period and the 3rd measuring period; Wherein, the periodic quantity of described the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of described UE; The periodic quantity of described the second measuring period is two times of periodic quantity of described the first measuring period; The periodic quantity of described the 3rd measuring period is four times of periodic quantity of described the first measuring period.
Compared with prior art, the present invention has the following advantages:
When the present invention obtains cell measurement results at UE, from measurement result, obtain the signal strength information of current service cell, and then according to signal strength information and measuring period regulation rule, judge whether current measuring period is reasonable, if unreasonable, namely satisfy regulation rule measuring period, then to adjusting current measuring period, re-use and carry out measuring period after the adjustment cell measurement.By the present invention, on the one hand, realized that UE dynamically adjusts and control the measuring period of cell measurement adaptively, measure electric weight and the CPU consumption that brings thereby effectively reduce, reduced the interacting message quantity that produces by measuring, promoted significantly the operating efficiency of terminal, under the prerequisite that does not affect measurement performance, reduced to measure consuming; On the other hand, UE carries out measuring period according to measurement result and adjusts judgement, does not increase extra sample data.Description of drawings
Fig. 1 is that a kind of UE of the prior art carries out the flow chart that Idle state is measured;
Fig. 2 is that a kind of UE of the prior art carries out the flow chart that connected state is measured;
Fig. 3 is the flow chart of steps according to a kind of cell measuring method of the embodiment of the invention one;
Fig. 4 is the flow chart of steps according to a kind of cell measuring method of the embodiment of the invention two;
Fig. 5 is the flow chart that carries out the Idle state measurement according to a kind of UE of the embodiment of the invention three;
Fig. 6 is the flow chart that carries out the connected state measurement according to a kind of UE of the embodiment of the invention four;
Fig. 7 is the structured flowchart according to a kind of cell measurement device of the embodiment of the invention five.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Embodiment one
With reference to Fig. 3, show the flow chart of steps according to a kind of cell measuring method of the embodiment of the invention one.
The cell measuring method of the present embodiment may further comprise the steps:
Step S302: when UE receives the cell measurement results of current measuring period, obtain the signal strength information of current service cell according to measurement result.
When UE receives cell measurement results, all can therefrom obtain the signal strength information of current service cell at every turn, and then whether needing follow-up current measuring period carry out the judgement adjusted.
Step S304:UE is according to regulation rule measuring period of signal strength information and setting, judges whether adjusting current measuring period, if, execution in step S306 then; If not, execution in step S308 then.
Measuring period, regulation rule was used for the signal strength information according to current service cell, carried out current measuring period and adjusted, as prolonging measuring period or shortening measuring period etc.As determining that according to the signal strength information of current service cell UE is in the Serving cell center, when being not easy to occur gravity treatment or switching, then measuring period can be prolonged; Otherwise, then need to shorten measuring period.
Step S306: if judged result is yes, then UE is to adjusting current measuring period, and uses carry out cell measurement the measuring period after adjusting, and finishes this flow process.
Step S308: if the determination result is NO, then UE keeps current measuring period, does not carry out measuring period and adjusts.
Pass through the present embodiment, when UE obtains cell measurement results, from measurement result, obtain the signal strength information of current service cell, and then according to signal strength information and measuring period regulation rule, judge whether current measuring period is reasonable, if unreasonable, namely satisfy regulation rule measuring period, then to adjusting current measuring period, re-use and carry out measuring period after the adjustment cell measurement.Pass through the present embodiment, on the one hand, realized that UE dynamically adjusts and control the measuring period of cell measurement adaptively, measure electric weight and the CPU consumption that brings thereby effectively reduce, reduced the interacting message quantity that produces by measuring, promoted significantly the operating efficiency of terminal, under the prerequisite that does not affect measurement performance, reduced to measure consuming; On the other hand, UE carries out measuring period according to measurement result and adjusts judgement, does not increase extra sample data.
Embodiment two
With reference to Fig. 4, show the flow chart of steps according to a kind of cell measuring method of the embodiment of the invention two.
The cell measuring method of the present embodiment may further comprise the steps:
Step S402: a plurality of different measuring period of carrying out cell measurement for the UE configuration.
Can suitably be configured according to actual conditions a plurality of different measuring periods by those skilled in the art, with the energy practical requirement, and avoids invalid measurement and reduce resource overhead, and reducing the UE energy consumption is purpose.
Preferably, the periodic quantity that the periodic quantity of a measuring period in a plurality of measuring periods can be configured to former fixation measuring cycle of UE is identical, to reduce the changing risk that causes on the impact of existing measurement procedure with because of flow process.In existing cell measurement, UE can set a fixing measuring period according to actual conditions, and uses carry out cell measurement this fixing measuring period always, and the periodic quantity of the measuring period that this is fixing can not change.In the present embodiment, use a plurality of measuring periods, adopted the dynamic adjustment mode of measuring period, the periodic quantity of each measuring period is different, but preferably, in these a plurality of measuring periods, the periodic quantity of one of them measuring period can be configured to equate with the periodic quantity of existing fixed cycle.
More preferably, configuring a plurality of measuring periods is three measuring periods, is respectively the first measuring period, the second measuring period and the 3rd measuring period; Wherein, the periodic quantity of the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of UE; The periodic quantity of the second measuring period is two times of periodic quantity of the first measuring period; The periodic quantity of the 3rd measuring period is four times of periodic quantity of the first measuring period.Three measuring periods will be configured to a plurality of measuring periods, and the periodic quantity that configured for the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of UE, except reducing to change the risk that causes on the impact of existing measurement procedure with because of flow process, UE is realized simple, the realization cost is low, dynamic response is timely, and is little on measuring ageing impact.Certainly, be not limited to this, in actual applications, those skilled in the art can suitably configure according to the actual requirements, as are configured to morely, perhaps are configured to non-integer multiple etc.
More preferably, the maximum cycle value in a plurality of measuring periods is less than or equal to the spacing value that reports of measurement result, with the measurement result of avoiding the base station side reprocessing to report, reduces system effectiveness.
Step S404: be set the acquiescence measuring period that the UE Idle state is measured and connected state is measured.
Be the first measuring period the acquiescence measuring period that can arrange that UE carries out that Idle state measures, i.e. the periodic quantity measuring period identical with the periodic quantity in the former fixation measuring cycle of UE is with the risk that reduces to cause on the impact of existing measurement procedure with because of the flow process change.
When the connected state measurement of UE is arranged, when UE has configured nearby region measurement, be the first measuring period the acquiescence measuring period that can arrange that UE carries out that connected state measures, use the highest measurement frequency that the adjacent area is monitored to reach, guarantee before adjusting judgement the measuring period first time monitoring frequency to the adjacent area; As UE when configuring adjacent cell is measured, be the 3rd measuring period the acquiescence measuring period that can arrange that UE carries out that connected state measures, and be arranged in the connected state measuring process, not to adjusting measuring period, to guarantee UE when the Monitoring Service cell signal only, the reduce measuring frequency.
Certainly, be not limited to the above-mentioned plan of establishment, in actual applications, those skilled in the art can suitably arrange according to actual needs and get final product.In addition, in actual applications, also can not arrange and give tacit consent to measuring period, by the certain rule of UE basis as according to the automatic State selective measurements of the cell signal strength cycle.
Step S406:UE initially starts shooting, and the acquiescence that use to arrange is carried out Idle state and measure measuring period.
In the present embodiment, UE uses and carries out the Idle state measurement the first measuring period.When specific implementation, the rrc layer of UE will be given tacit consent to and notify the PHY layer measuring period, and the PHY layer carries out Idle state according to this acquiescence measuring period to be measured, and to rrc layer reporting measurement result.
Need to prove, the present embodiment is initially started shooting as example take UE, but it should be understood by those skilled in the art that UE leaves the Idle state measurement of carrying out behind the connected state and also can realize with reference to the present embodiment.
Step S408:UE obtains the current acquiescence Idle state cell measurement results of measuring period, obtains the signal strength information of current service cell according to this measurement result.
When UE is in the LTE system, can obtain according to the measurement result that Idle state is measured the Srxlev(residential quarter selective reception grade point of current service cell), the implication of Srxlev can referring to 36.304 agreements, not repeat them here.
Step S410:UE is according to regulation rule measuring period of signal strength information and setting, judges whether adjusting the measuring period that current Idle state is measured, if, execution in step S412 then; If not, then keep acquiescence not adjust measuring period.
The judgement whether adjusted measuring period comprises: judge Srxlev and S
IntraSearchPThe relation of the difference of (measurement threshold value) and the first setting threshold and the second setting threshold.Wherein, S
IntraSearchPMeasure threshold value for one that is the base station side configuration, the first setting threshold is less than the second setting threshold.
If Srxlev and S
IntraSearchPDifference be less than or equal to the first setting threshold, then need be adjusted into for the first measuring period current measuring period, and use and carry out cell measurement the first measuring period; If Srxlev and S
IntraSearchPDifference greater than the first setting threshold and be less than or equal to the second setting threshold, then be adjusted into for the second measuring period current measuring period, and use and carry out cell measurement the second measuring period; If Srxlev and S
IntraSearchPDifference greater than the second setting threshold, then be adjusted into for the 3rd measuring period current measuring period, and use and carry out cell measurement the 3rd measuring period.By above-mentioned adjustment strategy, can effectively reduce and measure electric weight and the CPU consumption that brings, reduce the interacting message quantity that produces by measuring, under the prerequisite that does not affect measurement performance, reduced and measured consumption.
Preferably, it is that 10, the second setting thresholds are 20 that the first setting threshold can be set, to obtain adjusting effect obvious measuring period.
Step S412:UE adjusts current acquiescence measuring period, and carries out cell measurement the measuring period after the use adjustment.
UE can carry out according to the adjustment strategy among the step S410 measuring period and adjust, and then carries out follow-up Idle state and measure.
Need to prove, be adjusted into example the measuring period that the present embodiment is only measured with Idle state, but it should be understood by those skilled in the art that in the Idle state of reality is measured, UE receives at every turn that measurement result all can carry out adjusting measuring period and judges to determine the Idle state measuring period of next time.
Step S414:UE finishes random access in current service cell, enters connected state, judges whether UE has configured nearby region measurement, if not, and execution in step S416 then; If, execution in step S418 then.
Step S416:UE not configuring adjacent cell measures, and uses the acquiescence that arranges namely to carry out the connected state measurement the 3rd measuring period measuring period, and in the connected state measuring process, to adjusting measuring period, does not finish this flow process.
Step S418:UE has configured nearby region measurement, and the acquiescence that use to arrange is namely carried out connected state the first measuring period and measure measuring period.
Step S420:UE obtains the current acquiescence connected state cell measurement results of measuring period, obtains the signal strength information of current service cell according to this measurement result.
When UE is in the LTE system, can obtain M according to the measurement result that connected state is measured
sValue and M
N, maxValue, wherein, M
sThe RSRP value of value representation current service cell, M
N, maxMaximum RSRP value in the RSRP value of all adjacent areas of value representation current service cell.
Step S422:UE is according to regulation rule measuring period of signal strength information and setting, judges whether adjusting the measuring period that current connected state is measured, if, execution in step S424 then; If not, then keep acquiescence not adjust measuring period.
The judgement whether current connected state is adjusted measuring period comprises: judge M
sValue and M
N, maxThe difference of value and the relation of the 3rd setting threshold and the 4th setting threshold, wherein, the 3rd setting threshold is less than the 4th setting threshold.
If M
sValue and M
N, maxThe difference of value is less than or equal to the 3rd setting threshold, then is adjusted into for the first measuring period current measuring period, and uses and carry out cell measurement the first measuring period; If M
sValue and M
N, maxThe difference of value is greater than the 3rd setting threshold and be less than or equal to the 4th setting threshold, then is adjusted into for the second measuring period current measuring period, and uses and carry out cell measurement the second measuring period; If M
sValue and M
N, maxThe difference of value then was adjusted into for the 3rd measuring period with current measuring period, and uses and carry out cell measurement the 3rd measuring period greater than the 4th setting threshold.By above-mentioned adjustment strategy, can effectively reduce and measure electric weight and the CPU consumption that brings, reduce the interacting message quantity that produces by measuring, under the prerequisite that does not affect measurement performance, reduced and measured consumption.
Preferably, it is that 10, the four setting thresholds are 20 that the 3rd setting threshold can be set, to obtain adjusting effect obvious measuring period.
Step S424:UE adjusts current acquiescence connected state measuring period, and carries out connected state the measuring period after the use adjustment and measure.
UE can carry out according to the adjustment strategy among the step S422 measuring period and adjust, and then carries out follow-up connected state and measure.
Need to prove, be adjusted into example the measuring period that the present embodiment is only measured with connected state, but it should be understood by those skilled in the art that in the connected state of reality is measured, UE receives at every turn that measurement result all can carry out adjusting measuring period and judges to determine the connected state measuring period of next time.
Pass through the present embodiment, a kind of adaptive measuring control program is provided, be divided into Idle state and measure control and connected state measurement control, the signal strength signal intensity of the current service cell that the rrc layer of UE can detect according to the PHY layer is dynamically adjusted the measuring period of PHY layer, use the measuring period of adaptive mode control PHY layer, under the prerequisite that does not affect the UE measurement performance, reduced by the interacting message quantity that measure to produce, measure the electric quantity consumption and the cpu resource that bring and take thereby effectively reduce.
Need to prove, comprehensive explanation has been carried out in the measurement control that the measurement control of in the present embodiment Idle state being measured and connected state are measured, but those skilled in the art should understand, in actual use, can only adopt the measurement control of the Idle state measurement of the present embodiment, perhaps, only adopt the measurement control of the connected state measurement of the present embodiment, perhaps, both adopt simultaneously, all can obtain the effect that is better than prior art.
Below, carry out the measurement controlling party that measurement control that Idle state measures and connected state measure from UE respectively and describe in the face of cell measurement scheme of the present invention.
At first, Idle state in the following terminal adaptive measuring control program of the present invention measures control and connected state is measured in the control, the PHY layer of UE does not re-use existing fixation measuring cycle execution and measures, but with the ascending grade 1 that is divided into measuring period, grade 2,3 three kinds of grades (were equivalent to for the first measuring period, the second measuring period, the 3rd measuring period), the fixation measuring cycle in its middle grade 1 corresponding original scheme, grade 2 and grade 3 are distinguished 2 times and 4 times of corresponding 1 cycle of grade numerical value, and the measurement number of times in same time is equivalent to respectively 1/2nd and 1/4th of grade 1.For avoiding blindly prolonging measuring period, connected state grade measuring period 2, grade 3 must not report above the measurement that eNB issues the report cycle ReportInterval among the configuration ReportConfigEUTRA.Therefore, for ease of operation and management, Idle state is measured and connected state is measured and used unified a plurality of measuring periods, and the periodic quantity that maximum in these a plurality of measuring periods is set is no more than report cycle ReportInterval.Illustrate, the base station connects the reconfiguration message configurating terminal by RRC and measures, wherein ReportInterval is set to 240ms, terminal grade measuring period 1 is 100ms, this moment, RRC need configuration level 2 be 200ms so, grade 3 is 240ms, and namely grade 2, grade 3 all can not surpass the minimum spacing value that reports.Represent 1 minute if base station side changes to min1(with ReportInterval), then this moment, grade 2 can be set to 200ms, and grade 3 can be set to 400ms.36.304 the ReportInterval span is as follows in the agreement:
ReportInterval::=ENUMERATED{ms120,ms240,ms480,ms640,ms1024,ms2048,ms5120,ms10240,min1,min6,min12,min30,min60,spare3,spare2,spare1}
Above-mentioned measuring period, grade was as shown in table 1 below:
Table 1 arranges table measuring period
Based on above setting, UE carries out the measurement control of Idle state measurement and the measurement of connected state measurement is controlled respectively shown in embodiment three and embodiment four.
Embodiment three
With reference to Fig. 5, a kind of UE that shows according to the embodiment of the invention three carries out the flow chart that Idle state is measured.
The flow process that the UE of the present embodiment carries out the Idle state measurement may further comprise the steps:
Step S502:UE initially start shooting or leave connected state after at first carry out Cell searching, carry out the residential quarter and select.
Step S504:UE is in selected Serving cell read system information (comprising gravity treatment and adjacent area parameter among the SIB3-SIB7) and finish residently, and the rrc layer of UE is according to the neighboring BS information that carries in the system information, configuration PHY layer.
The rrc layer of step S506:UE starts Idle state to be measured, acquiescence use grade measuring period 1, and notice PHY layer is measured.
PHY layer use grade measuring period 1 of step S508:UE is carried out Idle state and is measured.
The measurement result that the PHY layer of step S510:UE reports Idle state to measure.
When the rrc layer of step S512:UE is received the measurement result that the PHY layer reports, adjudicate according to the RSRP value in the measurement result, adjust criterion if do not satisfy, keep original measurement grade; If satisfy to adjust criterion, adjust on corresponding measuring period of the grade.
Wherein, Idle state adjustment measuring period judgement designs according to the UE reselection criterion, and is as follows:
Srxlev-S
IntraSearchP≤ 10 o'clock, use grade measuring period 1;
10＜Srxlev-S
IntraSearchP≤ 20 o'clock, use grade measuring period 2;
Srxlev-S
IntraSearchP20 o'clock, use grade 3 measuring period.
Wherein, S
IntraSearchPBe included among the SIB3, configured by operator; The implication of Srxlev is referring to 36.304 agreements.
The rrc layer of step S514:UE is adjusted measuring period according to court verdict, and notice PHY layer.
The PHY layer of step S516:UE uses and carries out the Idle state measurement measuring period after adjusting.
The PHY layer of step S518:UE reports the measurement result of using the measuring period after adjusting.
So far, the one-shot measurement cycle is adjusted and finishes, and after the measurement result of the measuring period after the rrc layer of UE is received this adjustment, returns step S502, carries out Idle state judgement measuring period and the adjustment of a new round.
Embodiment four
With reference to Fig. 6, a kind of UE that shows according to the embodiment of the invention four carries out the flow chart that connected state is measured.
In the present embodiment, whether the rrc layer of UE need to configure nearby region measurement according to the base station and decide the measuring period of using which kind of grade when connected state starts measurement.When base station side when configuring adjacent cell is measured, acquiescence service rating 3 starts to be measured, and not to measuring period grade adjust, can guarantee like this UE when Monitoring Service cell signal only, the reduce measuring frequency; When base station side had configured nearby region measurement, acquiescence service rating 1 starts to be measured, and can use like this highest measurement frequency that the adjacent area is monitored, and can guarantee before the judgement measuring period first time monitoring frequency to the adjacent area.
When having nearby region measurement under the connected state, RRC just can carry out adjusting judgement measuring period.The flow process that the UE of the present embodiment carries out the connected state measurement may further comprise the steps:
Step S602:UE enters connected state after Serving cell is finished random access.
Step S604:UE receives that under connected state the RRC that eats dishes without rice or wine connects reconfiguration message, reads measurement configuration parameter wherein and configures the PHY layer and carry out cell measurement.
The rrc layer of step S606:UE starts connected state to be measured, acquiescence use grade 1 measuring period or grade 3, and notice PHY layer carries out cell measurement.
The PHY layer of step S608:UE uses and carries out the connected state measurement measuring period (grade 1 or grade 3) of configuration.
The measurement result that the PHY layer of step S610:UE reports connected state to measure.
When the RRC of step S612:UE receives the measurement result that the PHY layer reports, adjudicate according to the RSRP value in the measurement result, adjust criterion if do not satisfy, keep original measurement grade; If satisfy when adjusting criterion, adjust on the corresponding cycle grade.
Wherein, to adjust decision rule measuring period as follows for connected state:
When having nearby region measurement, just carry out as acting; When not having nearby region measurement, acquiescence use grade measuring period 3;
M
s-M
N, max≤ 10 o'clock, use grade measuring period 1;
10＜M
s-M
N, max≤ 20 o'clock, use grade measuring period 2;
M
s-M
N, max20 o'clock, use grade 3 measuring period.
Wherein, M
sExpression Serving cell RSRP measured value, M
N, maxRepresent the maximum in all adjacent area RSRP measured values.
The rrc layer of step S614:UE is adjusted measuring period according to court verdict, and notice PHY layer.
The PHY layer of step S616:UE uses and carries out the connected state measurement measuring period after adjusting.
The PHY layer of step S618:UE reports the measurement result of using the measuring period after adjusting.
So far, the one-shot measurement cycle is adjusted and finishes, and after the measurement result of the measuring period after the rrc layer of UE is received this adjustment, returns step S602, carries out connected state judgement measuring period and the adjustment of a new round.
Measurement control program by above-described embodiment three and embodiment four, (1) rrc layer of UE uses the measuring period of adaptive mode control PHY layer, measure electric weight and the CPU consumption that brings thereby effectively reduce, reduction is by measuring the interacting message quantity that produces, operating efficiency to UE has obvious lifting, reduces to measure under the prerequisite that does not affect measurement performance to consume; (2) adjust measuring period in the decision rule, use original measurement reported data to adjudicate, do not increase extra sample data; (3) above-mentioned Idle state and connected state decision rule, measuring characteristic and the measurement purpose according to Idle state and connected state designs fully, has very strong specific aim, and algorithm is simple and practical, and complexity is low; (4) be in non-moving state or at a slow speed during mobile status as UE, UE measurement variation speed is very slow, use such scheme can make UE keep lower density measurement grade, saved to greatest extent and measured consumption and electric quantity loss, so this scheme income under this scene is larger; When (5) UE is in high-speed moving state, because measurement variation is very fast, UE may remain on lower measuring period of the grade, owing to carrying out having considered when measuring period, grade arranged restriction to ReportInterval therefore also can not affecting the performance of handoffs under the high-speed moving state at connected state.
Embodiment five
With reference to Fig. 7, show the structured flowchart according to a kind of cell measurement device of the embodiment of the invention five.
The cell measurement device of the present embodiment comprises: acquisition module 702 is used for obtaining the signal strength information of current service cell according to measurement result when UE receives the cell measurement results of current measuring period; Judge module 704 is used for regulation rule measuring period according to signal strength information and setting, judges whether adjusting current measuring period; Adjusting module 706 be yes if be used for the judged result of judge module 704, then to adjusting current measuring period, and uses and carries out measuring period after the adjustment cell measurement.
Preferably, comprise a plurality of the measuring period of carrying out cell measurement, and the periodic quantity in the periodic quantity of a measuring period in a plurality of measuring periods and the former fixation measuring cycle of UE is identical.
Preferably, comprising three measuring periods a plurality of measuring periods, is respectively the first measuring period, the second measuring period and the 3rd measuring period; Wherein, the periodic quantity of the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of UE; The periodic quantity of the second measuring period is two times of periodic quantity of the first measuring period; The periodic quantity of the 3rd measuring period is four times of periodic quantity of described the first measuring period.
Preferably, the maximum cycle value in a plurality of measuring periods is less than or equal to the spacing value that reports of measurement result.
Preferably, the cell measurement device of the present embodiment also comprises: module 708 is set, be used at acquisition module 702 when receiving the cell measurement results of current measuring period as UE, obtain according to measurement result before the signal strength information of current service cell, be the first measuring period the acquiescence measuring period that arranges that UE carries out that Idle state measures.
Preferably, when UE carried out the Idle state measurement, acquisition module 702 was used for obtaining the Srxlev of current service cell according to measurement result when UE receives the cell measurement results of current measuring period; Judge module 704 is judged Srxlev and S
IntraSearchPDifference and the relation of the first setting threshold and the second setting threshold; Adjusting module 706 is if be used for Srxlev and S
IntraSearchPDifference be less than or equal to the first setting threshold, then be adjusted into for the first measuring period current measuring period, and use and carry out cell measurement the first measuring period; If Srxlev and S
IntraSearchPDifference greater than the first setting threshold and be less than or equal to the second setting threshold, then be adjusted into for the second measuring period current measuring period, and use and carry out cell measurement the second measuring period; If Srxlev and S
IntraSearchPDifference greater than the second setting threshold, then be adjusted into for the 3rd measuring period current measuring period, and use and carry out cell measurement the 3rd measuring period; Wherein, the first setting threshold is less than the second setting threshold.
Preferably, the first setting threshold is that 10, the second setting thresholds are 20.
Preferably, module 708 is set, also be used at acquisition module 702 when receiving the cell measurement results of current measuring period as UE, obtain according to measurement result before the signal strength information of current service cell, when UE had configured nearby region measurement, be the first measuring period the acquiescence measuring period that arranges that UE carries out that connected state measures; As UE when configuring adjacent cell is measured, be the 3rd measuring period the acquiescence measuring period that arranges that UE carries out that connected state measures, and be arranged in the connected state measuring process, not to adjusting measuring period.
Preferably, when UE carried out the connected state measurement and configured nearby region measurement, acquisition module 702 was used for obtaining M according to measurement result when UE receives the cell measurement results of current measuring period
sValue and M
N, maxValue, wherein, M
sThe RSRP value of value representation current service cell, M
N, maxMaximum RSRP value in the RSRP value of all adjacent areas of value representation current service cell; Judge module 704 is judged M
sValue and M
N, maxThe difference of value and the relation of the 3rd setting threshold and the 4th setting threshold; Adjusting module 706 is if be used for M
sValue and M
N, maxThe difference of value is less than or equal to the 3rd setting threshold, then is adjusted into for the first measuring period current measuring period, and uses and carry out cell measurement the first measuring period; If M
sValue and M
N, maxThe difference of value is greater than the 3rd setting threshold and be less than or equal to the 4th setting threshold, then is adjusted into for the second measuring period current measuring period, and uses and carry out cell measurement the second measuring period; If M
sValue and M
N, maxThe difference of value then was adjusted into for the 3rd measuring period with current measuring period, and uses and carry out cell measurement the 3rd measuring period greater than the 4th setting threshold; Wherein, the 3rd setting threshold is less than described the 4th setting threshold.
Preferably, the 3rd setting threshold is that 10, the four setting thresholds are 20.
Preferably, the cell measurement device of the present embodiment is arranged among the UE.
The cell measurement device of the present embodiment is used for realizing the corresponding cell measuring method of aforementioned a plurality of embodiment of the method, and has the beneficial effect of correlation method embodiment, does not repeat them here.
The present invention has realized: the PHY layer of (1) UE does not re-use fixing measuring period, accepts the rrc layer dynamic-configuration measuring period; (2) will be divided into 3 grades measuring period, the grade setting of connected state cycle is not more than ReportInterval; (3) rrc layer of UE is according to decision rule and measurement result, to dynamically controlling the measuring period of PHY; (4) Idle state decision rule and the connected state decision rule of RRC measuring period have been realized.By the present invention, the PHY layer of UE can not re-use fixing measuring period, and PHY is dynamically adjusted measuring period according to measurement result by rrc layer, under the prerequisite that does not affect the UE measurement performance, reduce the interacting message quantity that produces by measuring, measured electric quantity consumption and the resource occupation that brings thereby effectively reduce.
Need to prove, the a plurality of embodiment of the present invention are all to adjust and to be controlled to be example the measuring period in the LTE system, but be not limited to this, other similar communication system also can be with reference to the corresponding enforcement of embodiment of the invention cell measurement scheme of the present invention, such as TD-SCDMA, gsm system etc.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device embodiment because itself and embodiment of the method basic simlarity, so describe fairly simple, relevant part gets final product referring to the part explanation of embodiment of the method.
Above a kind of cell measuring method provided by the present invention and device are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. a cell measuring method is characterized in that, comprising:
When user equipment (UE) is received the cell measurement results of current measuring period, obtain the signal strength information of current service cell according to described measurement result;
According to regulation rule measuring period of described signal strength information and setting, judge whether adjusting described current measuring period;
If then to adjusting described current measuring period, and use and carry out measuring period after adjusting cell measurement.
2. method according to claim 1 is characterized in that, comprise a plurality of the measuring period of carrying out described cell measurement, and the periodic quantity in the periodic quantity of a measuring period in described a plurality of measuring periods and the former fixation measuring cycle of described UE is identical.
3. method according to claim 2 is characterized in that, comprise three measuring periods described a plurality of measuring periods, is respectively the first measuring period, the second measuring period and the 3rd measuring period;
Wherein, the periodic quantity of described the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of described UE; The periodic quantity of described the second measuring period is two times of periodic quantity of described the first measuring period; The periodic quantity of described the 3rd measuring period is four times of periodic quantity of described the first measuring period.
4. method according to claim 3 is characterized in that, the maximum cycle value in described a plurality of measuring periods is less than or equal to the spacing value that reports of described measurement result.
5. method according to claim 4 is characterized in that,, obtains according to described measurement result before the step of signal strength information of current service cell when UE receives the cell measurement results of current measuring period described, also comprises:
Be described the first measuring period the acquiescence measuring period that arranges that described UE carries out that Idle state measures.
6. according to claim 4 or 5 described methods, it is characterized in that, when described UE carries out Idle state when measuring,
The described step of obtaining the signal strength information of current service cell according to described measurement result comprises: the residential quarter selective reception grade point Srxlev that obtains current service cell according to described measurement result;
Described regulation rule measuring period according to described signal strength information and setting judges whether adjusting described current measuring period; If then to adjusting described current measuring period, and use the step of carrying out cell measurement measuring period after adjusting to comprise: judge described Srxlev and measure threshold value S
IntraSearchPDifference and the relation of the first setting threshold and the second setting threshold; If described Srxlev and S
IntraSearchPDifference be less than or equal to described the first setting threshold, then be adjusted into described the first measuring period current measuring period, and use and carry out cell measurement described the first measuring period; If described Srxlev and S
IntraSearchPDifference greater than described the first setting threshold and be less than or equal to described the second setting threshold, then be adjusted into described the second measuring period current measuring period, and use and carry out cell measurement described the second measuring period; If described Srxlev and S
IntraSearchPDifference greater than described the second setting threshold, then be adjusted into described the 3rd measuring period current measuring period, and use and carry out cell measurement described the 3rd measuring period; Wherein, described the first setting threshold is less than described the second setting threshold.
7. method according to claim 6 is characterized in that, described the first setting threshold is 10, and described the second setting threshold is 20.
8. method according to claim 4 is characterized in that,, obtains according to described measurement result before the step of signal strength information of current service cell when UE receives the cell measurement results of current measuring period described, also comprises:
When described UE had configured nearby region measurement, be described the first measuring period the acquiescence measuring period that arranges that described UE carries out that connected state measures;
As described UE when configuring adjacent cell is measured, be described the 3rd measuring period the acquiescence measuring period that arranges that described UE carries out that connected state measures, and be arranged in the described connected state measuring process, not to adjusting described measuring period.
9. method according to claim 8 is characterized in that, when described UE carries out the connected state measurement and has configured nearby region measurement,
The described step of obtaining the signal strength information of current service cell according to described measurement result comprises: obtain M according to described measurement result
sValue and M
N, maxValue, wherein, described M
sThe Reference Signal Received Power RSRP value of the described current service cell of value representation, described M
N, maxMaximum RSRP value in the RSRP value of all adjacent areas of the described current service cell of value representation;
Described regulation rule measuring period according to described signal strength information and setting judges whether adjusting described current measuring period; If then to adjusting described current measuring period, and use the step of carrying out cell measurement measuring period after adjusting to comprise: to judge described M
sValue and M
N, maxThe difference of value and the relation of the 3rd setting threshold and the 4th setting threshold; If described M
sValue and M
N, maxThe difference of value is less than or equal to described the 3rd setting threshold, then is adjusted into described the first measuring period current measuring period, and uses and carry out cell measurement described the first measuring period; If described M
sValue and M
N, maxThe difference of value is greater than described the 3rd setting threshold and be less than or equal to described the 4th setting threshold, then is adjusted into described the second measuring period current measuring period, and uses and carry out cell measurement described the second measuring period; If described M
sValue and M
N, maxThe difference of value then is adjusted into current measuring period described the 3rd measuring period, and uses and carry out cell measurement described the 3rd measuring period greater than described the 4th setting threshold; Wherein, described the 3rd setting threshold is less than described the 4th setting threshold.
10. method according to claim 9 is characterized in that, described the 3rd setting threshold is 10, and described the 4th setting threshold is 20.
11. a cell measurement device is characterized in that, comprising:
Acquisition module is used for obtaining the signal strength information of current service cell according to described measurement result when user equipment (UE) is received the cell measurement results of current measuring period;
Judge module is used for regulation rule measuring period according to described signal strength information and setting, judges whether adjusting described current measuring period;
Adjusting module be yes if be used for the judged result of described judge module, then to adjusting described current measuring period, and uses and carries out measuring period after the adjustment cell measurement.
12. device according to claim 11 is characterized in that, comprises three measuring periods described measuring period, is respectively the first measuring period, the second measuring period and the 3rd measuring period;
Wherein, the periodic quantity of described the first measuring period is identical with the periodic quantity in the former fixation measuring cycle of described UE; The periodic quantity of described the second measuring period is two times of periodic quantity of described the first measuring period; The periodic quantity of described the 3rd measuring period is four times of periodic quantity of described the first measuring period.
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