CN102111804B - A kind of quality monitoring method for cell of mobile terminal - Google Patents
A kind of quality monitoring method for cell of mobile terminal Download PDFInfo
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- CN102111804B CN102111804B CN200910251017.3A CN200910251017A CN102111804B CN 102111804 B CN102111804 B CN 102111804B CN 200910251017 A CN200910251017 A CN 200910251017A CN 102111804 B CN102111804 B CN 102111804B
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Abstract
The present invention discloses a kind of quality monitoring method for cell of mobile terminal, UE carries out in monitor procedure to better community, generation state switch time, if comprise in the neighbor list under new state UE monitoring community and this community is better community always, UE continue this better community is monitored; When the total monitoring period of UE to this better community to reach under new state required monitoring period length and this better cell signal always stable be better than current service cell time, UE carries out cell reselection process or to network side report measurement results.When technical scheme of the present invention is monitored better community after state switching, consider its time of having monitored before state switches, effectively avoid because UE state switches the delay that the cell reselection that causes or signal quality report.
Description
Technical field
The present invention relates to mobile communication system user terminal (being called for short, UE) cell quality monitoring technique, particularly a kind of quality monitoring method for cell of mobile terminal.
Background technology
In 3-G (Generation Three mobile communication system), after UE start, a suitable community (being called for short, Serving cell) always can be selected to carry out resident, and the business that network was set up or received to business of then initiating on the serving cell is set up request and obtains Radio Service.UE knows the wireless environment situation of periphery by the received signal code power (being called for short, RSCP) on the Primary Common Control Physical Channel of each adjacent cells in the neighbor list of periodic measurement Serving cell.When there is signal quality and being better than the adjacent cells of Serving cell, serving cell signal can be received to UE and cause interference, UE may be caused to receive internet message decoding error, therefore when UE detects the adjacent cells that there is better quality, can cell reselection process be initiated, resident in gravity treatment to the adjacent cells of better quality; Or measurement result is reported network, carries out cell merge by network-triggered.
According in 3GPP25.304 about cell reselection chapters and sections regulation and 3GPP25.331 in about measurement report send regulation, UE is detecting to exist than the better community of serving cell quality (abbreviation, better community) time, can carry out the monitoring of a period of time to better community, concrete monitoring period is configured by network terminal; If in monitoring period, the signal quality of this better community is always stable be better than Serving cell, after monitoring period terminates, UE initiates cell reselection; Or to network side report measurement results, send switching command triggering UE by network side resident on better community; If the signal quality measuring better community in monitoring period is worse than current service cell, then terminate the monitoring to this community, do not initiate cell reselection or report measurement results.
In 3-G (Generation Three mobile communication system), wireless heterogeneous networks (is called for short, RRC) module realizes the control and management function to Radio Resource, according to the different phase of RRC signaling, UE is divided into different states, when after UE normally a resident suitable community, RRC just enters the idle pulley that there is not signaling and connect, now, UE is in idle condition (being called for short, IDL); When UE initiates business, first UE initiates RRC connection establishment process to network, receives the RRC connection establishment message of network.Require to set up Signaling Radio Bearer by RRC connection establishment news network, and the quick access channel state in community under requiring UE to enter connection mode (being called for short CELL_FCH) or cell dedicated channel status (being called for short, CELL_DCH).Now, there is State Transferring in UE, forwards CELL_FCH or CELL_DCH state to from IDL state; Under CELL_FCH state, UE is by radio bearer process of establishing, be switched to CELL_DCH state, by RRC Connection Release process, get back to IDL state, in celldch state, UE is by initiating radio bearer reconfiguration course, enter CELL_FCH state, by RRC Connection Release process, get back to IDL state; The handoff procedure of UE between three kinds of states is see accompanying drawing 1.
Under different states, the adjacent cells of UE periodic measurement is different, under IDL state, UE can periodic measurement network terminal (be called for short by the neighbor list of broadcast in system message 11, nCellListA) Zhong Ge community, in CELL_FCH state, the community of UE periodic measurement is that the neighbor list broadcasted by system message 12 (is called for short, nCellListB) Zhong Ge community, that the neighbor list indicated in network measure control message (is called for short in the community of CELL_DCH state UE periodic measurement, nCellListC) Zhong Ge community.Meanwhile, under different conditions, not identical to the monitoring period of the better adjacent cells detected yet.
Due under different conditions, UE needs the neighbor list of measurement and the monitoring period difference to better community, therefore, if there occurs the switching of state in the process monitored better community in one of the states of UE, just need to process monitor procedure.
The method of existing techniques in realizing UE cell quality monitoring is generally:
1, UE detects better community in periodic measurement;
2, UE opens gravity treatment supervision timer, monitors this better community, and the setting timer expiry time is the monitoring period length under current state;
3, UE occurs to close gravity treatment supervision timer when state switches;
4, UE is switched to new state, carries out periodic measurement according to the neighbor list under new state to each adjacent cells;
5, UE detects better community under new state;
6, UE reopens gravity treatment supervision timer, monitors this better community, and the setting timer expiry time is the monitoring period length under current state;
If 7 before gravity treatment supervision timer time-out, the signal quality of this better community changes, be worse than current service cell, UE timeing closing device, do not initiate cell reselection or report measurement results, otherwise supervision timer time-out, UE initiates cell reselection (UE is in IDL or CELL_FCH state) or report measurement results (UE is in CELL_DCH state).
There is following problem in the above-mentioned implementation method of prior art:
UE is when state switches, direct stopping is to the monitoring of community better under previous status, the monitoring to better community is restarted according to measurement result after entering new state, and in the scene of reality, it is same cells greatly that UE needs the community in the neighbor list measured to have under different conditions, better community under such previous status probably also exists and keeps stablizing being better than Serving cell always in the neighbor list under new state, now, the delay that the method for prior art can cause cell reselection or measurement result to report, simultaneously, because this delay can cause UE in the increase not being residence time on best community, also can increase UE set up the probability of service fail or reduce UE quality of service.
Summary of the invention
In view of this, the present invention proposes a kind of quality monitoring method for cell of mobile terminal, to solve in prior art because UE state switches the problem of cell reselection or the UE report measurement results delay caused.
Technical scheme of the present invention comprises,
UE carries out in monitor procedure to better community, occur state switch time, if comprise in the neighbor list under new state UE monitoring community and this community is better community always, UE continue this better community is monitored;
When the total monitoring period of UE to this better community to reach under new state required monitoring period length and this better cell signal always stable be better than current service cell time, UE carries out cell reselection process or to network side report measurement results.
Further, described UE carries out monitoring to better community and comprises:
When UE detects better community, open gravity treatment supervision timer, this cell signal quality of periodic measurement, if occur that this cell signal quality is worse than the situation of serving cell signal quality before gravity treatment supervision timer time-out, close gravity treatment supervision timer;
The timed length of described gravity treatment supervision timer is monitoring period required under current state.
Further, described UE continues to carry out monitoring to this better community and comprises:
UE is restarted gravity treatment supervision timer and is monitored this better community, and setting timing length is:
Under current state, required monitoring period-state has monitored the time span of this better community before switching.
Accompanying drawing explanation
Fig. 1 is three kinds of stateful switchover process figure of UE
Fig. 2 is specific embodiment of the invention flow chart
Embodiment
For clearly demonstrating technical scheme of the present invention, providing preferred embodiment below and being described with reference to the accompanying drawings.
Specific embodiment
The present embodiment application scenarios is mobile communication terminal cell monitoring process when being switched to CELL_FCH state from idle condition, idiographic flow as shown in Figure 3:
1, UE each cell signal quality in an idle state in periodic measurement nCellListA;
2, UE detects the better community better than current service cell signal quality;
In the present embodiment, UE detects better community 1 in certain periodic measurement, in upper once measurement, better community 2 detected again;
3, UE unlatching gravity treatment supervision timer is monitored better community, and setting timer length is the monitoring period under IDL state;
When UE detects better community 1, open gravity treatment supervision timer T_RESELCTA1 and monitor this community, setting timer length is the monitoring period T_RESELCTA under IDL state;
When UE detects better community 2, open gravity treatment supervision timer T_RESELCTA2 and monitor this community, setting timer length is the monitoring period T_RESELCTA under IDL state;
The concrete grammar of described monitoring is the RSCP of each community of periodic measurement, finds that certain better cell signal quality is worse than the situation appearance of Serving cell, close the corresponding gravity treatment supervision timer in this better community in measuring;
4, terminal carries out RRC connection establishment process, and UE is switched to CELL_FCH from IDL;
5, UE records the time and better community corresponding respectively that each gravity treatment supervision timer of running run, closes all gravity treatment supervision timers;
6, UE measures each cell signal quality in nCellListB;
7, UE judge the signal quality detected be better than whether be included in IDL state in the better community of Serving cell under the better community monitored, perform step 8 in this way, otherwise perform step 9;
In the present embodiment, this step UE detects that the better community that signal quality is better than Serving cell comprises better community 1;
8, monitor the gravity treatment supervision timer that the better community monitored under IDL state in better community restarts its correspondence respectively, each timer timed length is:
T_RESELCTBi＝T_RESELCTB-BETAi
Wherein, T_RESELCTBi is gravity treatment supervision timer length corresponding to each better community in this step, T_RESELCTB is the monitoring period needed under CELL_FCH state, and BETAi is the time that the gravity treatment supervision timer of each better community correspondence under IDL state in this step has run;
The concrete grammar of described monitoring is identical with step 3;
In the present embodiment, this step is opened gravity treatment supervision timer to better community 1 and is monitored, and setting timer length is, T_RESELCTB1=T_RESELCTB-BETA1; Wherein BETA1 is the time span that T_RESELCTA1 has run under IDL state;
9, the better community being better than Serving cell to other signal qualitys detected is opened gravity treatment supervision timer respectively and is monitored, and setting each timer length is respectively T_RESELCTB;
In the present embodiment, detect that a signal quality is better than the better community 3 of Serving cell, open gravity treatment supervision timer T_RESELCTB3 to it and monitor, timer length is set as T_RESELCTB;
The concrete grammar of described monitoring is identical with step 3;
10, gravity treatment supervision timer time-out, UE selects the community that this gravity treatment supervision timer is corresponding to carry out cell reselection, and gravity treatment is carried out resident to this community.
In the present embodiment, there is time-out in the gravity treatment supervision timer of better community 1, UE selects better community 1 to carry out cell reselection.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (2)
1. a quality monitoring method for cell of mobile terminal, is characterized in that, comprising:
Mobile terminal UE is carried out in monitor procedure to better community, occur state switch time, if comprise in the neighbor list under new state state switch before UE monitoring community and this community is better community always, UE continue this better community is monitored; Described UE continues to carry out monitoring to this better community and comprises: UE is restarted gravity treatment supervision timer and monitored this better community, and setting timer length is: under current state, required monitoring period-state has monitored the time span of this better community before switching;
When the total monitoring period of UE to this better community to reach under new state required monitoring period length and this better cell signal always stable be better than current service cell time, UE carries out cell reselection process or to network side report measurement results.
2. a kind of quality monitoring method for cell of mobile terminal according to claim 1, is characterized in that, described UE carries out monitor procedure to better community and comprises:
When UE detects better community, open gravity treatment supervision timer, this cell signal quality of periodic measurement, if occur that this cell signal quality is worse than the situation of serving cell signal quality before gravity treatment supervision timer time-out, close gravity treatment supervision timer;
The timed length of described gravity treatment supervision timer is monitoring period required under current state.
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| CN103298045B (en) | 2012-02-24 | 2016-08-10 | 华为终端有限公司 | A kind of method and apparatus controlling cell reselection |
| CN112566206B (en) * | 2020-12-02 | 2023-02-28 | Oppo（重庆）智能科技有限公司 | Cell change control method, cell change control device, terminal device and storage medium |
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| CN101155390A (en) * | 2006-09-27 | 2008-04-02 | 大唐移动通信设备有限公司 | Double module terminal and its method for selecting resident network |
| CN101005711A (en) * | 2007-01-19 | 2007-07-25 | 重庆重邮信科股份有限公司 | Method for shortening timedelay of user's terminal from connecting mode returning to idle mode |
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