CN102264091B - Method for executing L3 smoothing at terminal, and mobile terminal thereof - Google Patents
Method for executing L3 smoothing at terminal, and mobile terminal thereof Download PDFInfo
- Publication number
- CN102264091B CN102264091B CN201010182639.8A CN201010182639A CN102264091B CN 102264091 B CN102264091 B CN 102264091B CN 201010182639 A CN201010182639 A CN 201010182639A CN 102264091 B CN102264091 B CN 102264091B
- Authority
- CN
- China
- Prior art keywords
- measurement
- result
- smoothing
- terminal
- level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a method for executing L3 smoothing at a terminal, and a mobile terminal thereof. The method comprises the following steps of: firstly, calculating a measurement period T of a frequency point, introducing the measurement period into a smoothing formula, wherein the modified smoothing formula is Fn = (1 - a)P.(Fn - 1 - Mn) + Mn, Mn is the latest measurement result provided by a physical layer, Fn is a result of smoothing with a measurement value of the measurement period T, Fn - 1 is a previous smoothing result; a is equal to 1/2(K/4), K is a filtering coefficient corresponding to a measurement item in configurations received by the terminal, and P is a ratio of the measurement period T to a fixed duration. Thus, the method can adjust a smoothing parameter according to the measurement period, so that the smoothing result can be more accurate.
Description
Technical field
The smoothing method that the present invention relates to mobile terminal in EPS (Evolved Packet System, evolved packet system), especially relates to the terminal L3 smoothing method of introducing measuring period.
Background technology
In mobile communication system, the object of smoothing function is the in the situation that of unstable networks, utilizes long-term average weighted principle, and actual measured results is processed, and avoids the sudden change of measurement result.Terminal judges with the thresholding that observes and predicts that calculates level and smooth result and network configuration, when meeting thresholding, to network, sends measurement report, carries level and smooth result in measurement report.If the level and smooth result that terminal obtains is inaccurate, can cause terminal to send wrong measurement report, even affect the handover decisions of network.
3GPP TS36.331 v8.6.0, chapters and sections 5.5.3.2 is smoothly described below L3:
" 2 > assessment measurement reports report standard time use the measurement result after filtering, filter formula as follows:
F
n＝(1-a)·F
n-1+a·M
n (1)
Wherein:
M
nit is the up-to-date measurement result that physical layer provides;
F
nthe level and smooth measurement result after upgrading, for assessment of the standard that reports of measurement report;
F
n-1original level and smooth measurement result, F
0=M
1be the measurement result that physical layer provides for the first time;
A=1/2
(k/4), k is a corresponding corresponding filter factor (filterCoefficent) of measuring in the terminal quantityConfig configuration of receiving;
2 > notice that the value of filter factor k is basis take sample cycle as 200ms, need to adjust filter, the time response of maintenance filter according to the different input cycles; "
If network configures new DRX parameter or new adjacent area frequency under connected state, can change the measuring period of terminal.The smoothing formula itself providing due to current agreement does not have time response, once therefore change measuring period, terminal continues to use original smoothing parameter, and the level and smooth result that can cause terminal to obtain is inaccurate.For example, when measuring period is elongated, if last level and smooth result shared ratio in this level and smooth result remains unchanged, will cause inaccurate level and smooth result.
Summary of the invention
In view of the shortcoming of prior art, an object of the present invention is to provide one and carry out L3 smoothing method in terminal, it,, automatically according to adjusting smoothing parameter measuring period, makes level and smooth result more accurate.
The technical scheme that the present invention proposes is a kind of in the level and smooth method of terminal execution L3, comprises the measurement period T of calculating frequency; And according to smoothing formula: F
n=(1-a)
p(F
n-1-M
n)+M
ncarry out smoothly, wherein: M
nit is the up-to-date measurement result that physical layer provides; F
nit is the result after level and smooth with the measured value of measurement period T; F
n-1it is level and smooth result last time; A=1/2
(k/4), k is a corresponding corresponding filter factor of measuring in the terminal configuration of receiving; P is the ratio of measurement period T and a fixing duration.
In above-mentioned method, the method for calculating the measurement period T of frequency comprises: according to the measuring period of the poor calculating frequency of network frame number carrying in twice measurement report of terminal physical layer.
In above-mentioned method, this fixing duration can be 200ms.
Another technical scheme that the present invention proposes is a kind of mobile terminal of the L3 of execution smoothing function, comprises physical layer block and radio resource controller.Physical layer block is measured frequency according to measuring configuration, and reporting measurement result.Radio resource controller, needs to physical layer block configuration the frequency of measuring, and the measurement period T of the measurement result reporting according to physical layer block calculating frequency, and according to smoothing formula: F
n=(1-a)
p(F
n-1-M
n)+M
ncarry out smoothly, wherein: M
nit is the up-to-date measurement result that physical layer provides; F
nit is the result after level and smooth with the measured value of measurement period T; F
n-1level and smooth result last time; A=1/2
(k/4), k is a corresponding corresponding filter factor of measuring in the terminal configuration of receiving; P is the ratio of measurement period T and a fixing duration.
The present invention, owing to adopting above technical scheme, and will introduce smoothing formula measuring period, thereby reach automatically according to adjusting smoothing parameter measuring period, make level and smooth result effect more accurately.In some cases, the present invention even can avoid unnecessary switching, improves the performance of terminal.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the system construction drawing of carrying out according to an embodiment of the invention smoothing function.
Fig. 2 is smoothing process schematic diagram according to an embodiment of the invention.
Embodiment
Generally, embodiments of the invention are the computation and measurement cycle (input rates) first, and will introduce smoothing formula measuring period, thereby reaches automatically according to adjusting smoothing parameter measuring period, makes level and smooth result object more accurately.According to an embodiment, can utilize measuring period network frame number to calculate.
Be appreciated that when elongated in measuring period, the ratio that the ratio that last smoothed result takies in this level and smooth result takies in should be than original measuring period still less.For the impact in reflected measurement cycle in smoothing formula, one embodiment of the invention for example, are counted measuring period take the duration (200ms) fixed as unit, as parameter P, join in smoothing formula, the ratio that definition last smoothed result takies in this level and smooth result is (1-a)
p.Revised smoothing formula is as follows:
F
n＝(1-a)
P·(F
n-1-M
n)+M
n (2)
For ease of understanding, the derivation of above-mentioned formula (2) is described as follows:
The smoothing formula (1) being stipulated by 3GPP:
F
1＝((1-a)·F
0+a·M
1)，
F
1to be measuring period the once level and smooth result of t0 (as 200ms), F
0at F
1middle occupation proportion is (1-a)
1;
F
2＝F
1·(1-a)+a·M
2
=((1-a) F
0+ aM
1) (1-a)+aM
2, F
2to be measuring period the level and smooth result of the secondary of 200ms, F
0at F
2middle occupation proportion is (1-a)
2;
F
P＝F
P-1·(1-a)+a·M
P
＝(1-a)
P·F
0+a·(1-a)
P-1·M
1+a·(1-a)
P-2·M
2+...+a·M
P
Visible, F
0in the measuring period level and smooth result of P time that is 200ms, occupation proportion is (1-a)
p, by (200*P) ms as measuring period, F
0the ratio taking in the one-shot measurement cycle is (1-a)
pso measurement period T is that the smoothing formula of (t0*P) ms is as follows:
F
n＝(1-a)
P·F
n-1+(1-(1-a)
P)·M
n
＝(1-a)
P·(F
n-1-M
n)+M
n
M
nit is the up-to-date measurement result that physical layer provides;
F
nit is the result after level and smooth with the measured value that is P 200ms measuring period;
F
n-1define constantly, be still the level and smooth result of last time;
A=1/2
(k/4), k is a corresponding corresponding filter factor of measuring in the terminal quantityConfig configuration of receiving;
P is measurement period T/t0.
Fig. 1 is the system construction drawing of carrying out according to an embodiment of the invention smoothing function.Shown in Fig. 1, in steps A, in the base station of network (E-NODEB) side, can send and measure configuration to terminal.Terminal is received after the measurement configuration of E-NODEB, at step B, by its radio resource controller (RRC), to physical layer block configuration, is needed the frequency point information of measuring.Physical layer block is measured respectively each frequency, and in step C the mode reporting measurement result with measurement report, and carry network frame number.
For common frequency measurement, if current network does not configure DRX, physical layer is carried out periodicity according to the 200ms cycle and is reported, otherwise the cycle that physical layer indicates according to table 1 carries out periodicity and reports.
The measuring period of table 1:TDD co-frequency cell
For different-frequency measure, if current network does not configure DRX, physical layer is according to T in table 2
measurement_Period_TDD_Intercarry out periodicity and report, otherwise the cycle that physical layer indicates according to table 3 carries out periodicity and reports.
Table 2: the T under different measuring GAP configuration
measurement_Period_TDD_Inter
Table 3: the measuring period of alien-frequency district
In one embodiment, the difference of the network frame number carrying in twice measurement report of RRC Computational Physics layer module, obtains the measuring period of this frequency.RRC can be by the cycle of measuring period with benchmark, and for example 200ms counting, as parameter P, is increased in smoothing model, and smoothing model as shown in Figure 2.RRC is by the Output rusults F of model
ncompare with the standard of observing and predicting of E-NODEB configuration, meeting after the condition of observing and predicting, in step, D sends measurement report to E-NODEB, and carries measurement of correlation result.
Compared with existing smooth operation, embodiments of the invention provide level and smooth result more accurately, thereby save interface-free resources.
For instance, the in the situation that of k=4, Serving cell becomes 400ms from 200ms measuring period, and physical layer measurement result is-130dbm for the first time, and measurement result is-103dbm for the second time, and measurement result is-130dbm for the third time.
If use existing method, continue to use original measuring period, the level and smooth result measuring for three times is followed successively by :-130dbm ,-116dbm ,-123dbm.
If use the method for the present embodiment, the level and smooth result measuring for three times is followed successively by :-130dbm ,-110dbm ,-125dbm.Cycle is longer, and level and smooth result more approaches actual measured results.
Although smoothly measurement result of two kinds of methods, the level and smooth result that the present embodiment provides more approaches actual measured value, meets current network situation, therefore more accurate.
Terminal is only obtained level and smooth result accurately just can avoid sending wrong measurement report.For instance, network configuration thresholding be-115dbm, the A2 event that the triggered time is 1024ms.By above-mentioned level and smooth result of giving an example, existing method meets A2 event, sends A2 measurement report, and network can send nearby region measurement control or switching command after receiving A2 measurement report.And the method for pressing the present embodiment, measurement result does not meet A2 event for the second time, therefore can not send A2 measurement report.This has reduced unnecessary measurement behavior, in some cases, even can avoid unnecessary switching, improves the performance of terminal.
Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little modification and perfect, therefore protection scope of the present invention is worked as with being as the criterion that claims were defined.
Claims (6)
1. in terminal, carry out the level and smooth method of L3, comprise the following steps:
Calculate the measurement period T of frequency;
According to smoothing formula: F
n=(1-α)
p(F
n-1-M
n)+M
ncarry out smoothly, wherein:
M
nit is the up-to-date measurement result that physical layer provides;
F
nit is the result after level and smooth with the measured value of measurement period T;
F
n-1it is level and smooth result last time;
α=1/2
(k/4), k is a corresponding corresponding filter factor of measuring in the terminal configuration of receiving;
P is the ratio of measurement period T and a fixing duration.
2. the method for claim 1, is characterized in that, the method for calculating the measurement period T of frequency comprises: according to the measuring period of the poor calculating frequency of network frame number carrying in twice measurement report of terminal physical layer.
3. the method for claim 1, is characterized in that, this fixing duration is 200ms.
4. a mobile terminal of carrying out L3 smoothing function, comprising:
Physical layer block, measures frequency according to measuring configuration, and reporting measurement result;
Radio resource controller, needs the frequency measured to physical layer block configuration, and the measurement result reporting according to physical layer block calculates the measurement period T of frequency, and according to smoothing formula:
F
n=(1-α)
p(F
n-1m
n)+M
ncarry out smoothly, wherein:
M
nit is the up-to-date measurement result that physical layer provides;
F
nit is the result after level and smooth with the measured value of measurement period T;
F
n-1level and smooth result last time;
α=1/2
(k/4), k is a corresponding corresponding filter factor of measuring in the terminal configuration of receiving;
P is the ratio of measurement period T and a fixing duration.
5. mobile terminal as claimed in claim 4, is characterized in that, carries network frame number in this measurement result, and this radio resource controller is according to the measuring period of the poor calculating frequency of network frame number carrying in twice measurement result.
6. mobile terminal as claimed in claim 4, is characterized in that, this fixing duration is 200ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010182639.8A CN102264091B (en) | 2010-05-24 | 2010-05-24 | Method for executing L3 smoothing at terminal, and mobile terminal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010182639.8A CN102264091B (en) | 2010-05-24 | 2010-05-24 | Method for executing L3 smoothing at terminal, and mobile terminal thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102264091A CN102264091A (en) | 2011-11-30 |
| CN102264091B true CN102264091B (en) | 2014-05-07 |
Family
ID=45010494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010182639.8A Active CN102264091B (en) | 2010-05-24 | 2010-05-24 | Method for executing L3 smoothing at terminal, and mobile terminal thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102264091B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991356A (en) * | 2015-01-29 | 2016-10-05 | 苏州简约纳电子有限公司 | Method and system of filtering measurement result dynamically in long term evolution (LTE) system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9414372B2 (en) * | 2012-03-16 | 2016-08-09 | Qualcomm Incorporated | Digital filter control for filter tracking speedup |
| CN106941693B (en) * | 2016-01-04 | 2020-08-07 | 中国移动通信集团公司 | Filter coefficient adjusting method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426224A (en) * | 2007-11-02 | 2009-05-06 | 华为技术有限公司 | Method, system and equipment for measurement result reporting |
| CN101568138A (en) * | 2009-05-26 | 2009-10-28 | 中兴通讯股份有限公司 | Measurement report control method, system and mobile terminal of mobile communication system |
-
2010
- 2010-05-24 CN CN201010182639.8A patent/CN102264091B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426224A (en) * | 2007-11-02 | 2009-05-06 | 华为技术有限公司 | Method, system and equipment for measurement result reporting |
| CN101568138A (en) * | 2009-05-26 | 2009-10-28 | 中兴通讯股份有限公司 | Measurement report control method, system and mobile terminal of mobile communication system |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP Technical Specification Group Radio Access Network.Evolved Universal Terrestrial Radio Access.《3GPP TS 36.331 V8.9.0》.2010, * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105991356A (en) * | 2015-01-29 | 2016-10-05 | 苏州简约纳电子有限公司 | Method and system of filtering measurement result dynamically in long term evolution (LTE) system |
| CN105991356B (en) * | 2015-01-29 | 2019-05-17 | 苏州简约纳电子有限公司 | Measurement result dynamic filtering method and system in a kind of LTE system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102264091A (en) | 2011-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110463061B (en) | Method for performing measurement reporting and apparatus therefor | |
| CN103167534B (en) | The measurement processing method and apparatus of communication event, subscriber equipment | |
| AU2018331013B2 (en) | Method for selecting carrier and communication device | |
| EP3697125A1 (en) | Method and apparatus for measuring inter-frequency neighboring cell and user equipment thereof | |
| EP3114804B1 (en) | Ultra-reliable communication reliability and detection in mobile networks | |
| US11711154B2 (en) | Method of reporting RSSI measurements in an unlicensed band and related apparatus | |
| WO2012072040A1 (en) | Method for selecting frequency point, hnb and device | |
| TW200423767A (en) | Estimation of interference variation caused by the addition or deletion of a connection | |
| CN108012295B (en) | Base station switching method and device, electronic equipment and storage medium | |
| CN101127998A (en) | Method and terminal for adjacent cell measurement of terminal in long evolving system | |
| CN112383946B (en) | Network switching method and network equipment | |
| CN104471887A (en) | Method and access point for assigning sounding resources | |
| CN102264091B (en) | Method for executing L3 smoothing at terminal, and mobile terminal thereof | |
| CN103634838A (en) | Minimization of drive-test measurement result reporting method and device | |
| CN110708658B (en) | Data transmission method and base station | |
| CN107770780A (en) | GAP measuring methods and equipment based on Idle state | |
| EP2940884A1 (en) | Method and device for determining comp user | |
| US9999060B2 (en) | Radio control system, communication apparatus, radio resource control method, and recording medium | |
| WO2013000240A1 (en) | Method and system for sensing frequency spectrum for combined multi-node | |
| CN101895920B (en) | Method and system for reporting measurement reports between network elements | |
| CN101729162A (en) | Method of radio measurement in communication network and communication node | |
| CN103167527A (en) | Method for multi-community sounding reference signal detection, related base station and related system | |
| CN114980234A (en) | Pilot frequency switching method, device and storage medium | |
| CN104684034A (en) | Communication terminal management method and communication system | |
| CN109362088B (en) | Method and device for measuring slave mode information of GSM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |