CN104581841A - Mobile terminal and cell reselection method and cell reselection device of mobile terminal - Google Patents
Mobile terminal and cell reselection method and cell reselection device of mobile terminal Download PDFInfo
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Abstract
The invention relates to a mobile terminal and a cell reselection method and a cell reselection device of the mobile terminal. The cell reselection method of the mobile terminal comprises the following steps: in an FACH state, determining a to-be-reselected cell based on pilot frequency or inter-system measurement; in-band synchronizing the mobile terminal and the to-be-reselected cell which meets an in-band synchronous condition, wherein the in-band synchronous condition is that the receiving time of synchronous information of the to-be-reselected cell is in a time quantum of the pilot frequency or inter-system measurement and the in-band synchronization condition comprises the receiving time of the synchronous information of the to-be-reselected cell is positioned in the time quantum of the pilot frequency or inter-system measurement; the in-band synchronization comprises the step of receiving the synchronous information of the to-be-reselected cell which meets the in-band synchronization condition in the time quantum of the pilot frequency or inter-system measurement; when the to-be-reselected cell meets the reselection condition and the mobile terminal is synchronized with the to-be-reselected cell which meets the reselection condition, reselecting the mobile terminal from the current cell to the to-be-reselected cell which meets the reselection condition. According to the technical scheme, the reselection speed of the cell can be accelerated and the probability of losing network side messages is reduced.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of mobile terminal and residence reselecting thereof and device.
Background technology
Mobile terminal in use, in order to ensure business and obtain best service quality, is supported in different minizones and switches, be i.e. so-called cell reselection function.Such as, mobile terminal is resident behind current area, the signal quality of the adjacent cell measuring described current area will be removed according to system requirements, if after finding that the signal quality of a certain adjacent cell is better than the current area regular hour, cell re-selection procedure will be started, mobile terminal is made to be switched in the better adjacent cell of this signal quality, to ensure mobile terminal service.Wherein adjacent cell can be co-frequency neighbor cell, iso-frequency adjacent community or different system adjacent cell.
Mobile terminal has two kinds of basic operational modes: Idle state and connected state.Wherein, connected state refers to and establishes wireless heterogeneous networks (RRC, Radio Resource Control) state that connects, dedicated channel (DCH can be divided into again, Dedicated Channel) state, forward access channel (FACH, Forward Access Channel) state, paging channel (PCH, Paging Channel) state and UTRAN Acceditation Area paging (URAPCH, UTRAN Registration Area Paging Channel) state.
Wherein, when running of mobile terminal is in FACH state, a kind of state when its service rate is lower, uses public physic channel to transmit a small amount of user data.According to the realization of current agreement, mobile terminal is under FACH state, it is less for the measuring machine meeting (measurement occasion) carrying out alien frequencies or isosystem measurement, and the process of carrying out reselection evaluation in cell reselection process therefore can be caused longer, reduces the efficiency of cell reselection.And, after reselection evaluation completes, if there is the adjacent cell (can referred to as Target cell) meeting reselection conditions, also first to discharge the channel configuration of current area, and then configure the channel of Target cell, the synchronizing information of receiving target community, to complete cell reselection.In this process, also may the synchronizing information of lose objects community, make the increased periods of cell reselection, considerably increase the probability losing network side message, Consumer's Experience is not good.
Correlation technique can be the U.S. Patent application of US2009318116A1 with reference to publication number.
Summary of the invention
The problem that technical solution of the present invention solves is: in prior art, when running of mobile terminal is in FACH state, the problem of reuse adoption process longer, easy loss network side message.
For solving the problem, technical solution of the present invention provides a kind of residence reselecting of mobile terminal, comprising: under FACH state, based on alien frequencies or isosystem measurement, determines to treat re-selecting cell; Make described mobile terminal with meet be with inter-sync condition treat that band inter-sync is carried out in re-selecting cell, treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in alien frequencies or isosystem measurement; When meeting reselection conditions until re-selecting cell, described mobile terminal with meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Optionally, described based on alien frequencies or isosystem measurement, determine to treat that re-selecting cell comprises: based on the result of described alien frequencies or isosystem measurement, calculate the mass parameter of each adjacent cell of current area; Adjacent cell mass parameter being greater than threshold value is defined as treating re-selecting cell.
Optionally, make described in described mobile terminal with meet be with inter-sync condition treat that re-selecting cell carries out being with inter-sync to comprise: determine to treat the time of reception of the synchronizing information of re-selecting cell and the alien frequencies of described mobile terminal or the time period of isosystem measurement; The time period that the time of reception of the synchronizing information of re-selecting cell is positioned at alien frequencies or isosystem measurement is treated when determined, then configure the synchronizing channel treating re-selecting cell of described satisfied band inter-sync condition, within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition.
Optionally, described synchronizing information comprises Master Information Block and synchronous information block, describedly determines that the time of reception of the synchronizing information treating re-selecting cell comprises: the time of reception treating the Master Information Block of re-selecting cell described in determining; According to the described schedule information treating the synchronous information block that the Master Information Block of re-selecting cell comprises, described in determining, treat the time of reception of the synchronous information block that the Master Information Block of re-selecting cell comprises.
Optionally, described reselection conditions comprise described in treat that the quality of re-selecting cell is best and the duration being better than the quality of described current area is greater than time threshold.
Optionally, the residence reselecting of described mobile terminal also comprises: when meeting reselection conditions until re-selecting cell, described mobile terminal not with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal discharge the channel configuration of described current area, receive the described synchronizing information treating re-selecting cell meeting reselection conditions; When described mobile terminal with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Optionally, described mobile terminal discharges the channel configuration of described current area, receive described meet reselection conditions treat that the synchronizing information of re-selecting cell comprises: described mobile terminal discharges the channel configuration of described current area, continues to receive the described synchronizing information treating re-selecting cell meeting reselection conditions.
Optionally, described mobile terminal discharges the channel configuration of described current area, receive described meet reselection conditions treat that the synchronizing information of re-selecting cell comprises: described mobile terminal discharges the channel configuration of described current area, configure the described synchronizing channel treating re-selecting cell meeting reselection conditions, receive the described synchronizing information treating re-selecting cell meeting reselection conditions.
Optionally, the residence reselecting of described mobile terminal also comprises: when meeting band inter-sync condition until re-selecting cell, and that in band inter-sync demand schedule, records described satisfied band inter-sync condition treats re-selecting cell; Described within the time period of alien frequencies or isosystem measurement, receive described satisfied band inter-sync condition treat that the synchronizing information of re-selecting cell comprises: within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell recorded in described band inter-sync demand schedule.
For solving the problems of the technologies described above, technical solution of the present invention also provides a kind of cell reselection device of mobile terminal, comprising: determining unit, under FACH state, based on alien frequencies or isosystem measurement, determines to treat re-selecting cell; First lock unit, treat that band inter-sync is carried out in re-selecting cell for what make described mobile terminal and described satisfied band inter-sync condition, treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in described alien frequencies or isosystem measurement treat re-selecting cell synchronizing information; First gravity treatment unit, for when meeting reselection conditions until re-selecting cell, described mobile terminal with meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Optionally, described determining unit comprises: computing unit, for the result based on described alien frequencies or isosystem measurement, calculates the mass parameter of each adjacent cell of current area; First determines subelement, is defined as treating re-selecting cell for adjacent cell mass parameter being greater than threshold value.
Optionally, described first lock unit comprises: second determines subelement, for determining the time of reception of the synchronizing information treating re-selecting cell and the alien frequencies of described mobile terminal or the time period of isosystem measurement; Receiving element, for determinedly treating that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement, then configure the synchronizing channel treating re-selecting cell of described satisfied band inter-sync condition, within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition.
Optionally, the cell reselection device of described mobile terminal also comprises: the second lock unit, for when meeting reselection conditions until re-selecting cell, described mobile terminal not with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal discharge the channel configuration of described current area, receive the described synchronizing information treating re-selecting cell meeting reselection conditions; Second gravity treatment unit, for when described mobile terminal with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Optionally, the cell reselection device of described mobile terminal also comprises: record cell, and for when meeting band inter-sync condition until re-selecting cell, that in band inter-sync demand schedule, records described satisfied band inter-sync condition treats re-selecting cell; Described first lock unit, within the time period of alien frequencies or isosystem measurement, receives the synchronizing information treating re-selecting cell recorded in described band inter-sync demand schedule.
Technical solution of the present invention also provides a kind of mobile terminal comprising above-mentioned cell reselection device.
Optionally, described mobile terminal is the mobile terminal supporting WCDMA.
Compared with prior art, technical scheme of the present invention has the following advantages:
Utilize the time period of the existing alien frequencies of system or isosystem measurement, make mobile terminal and treat that re-selecting cell is carried out synchronous, the synchronizing information of re-selecting cell for cell reselection is treated described in reception, like this, once described in meet after reselection conditions until re-selecting cell, described mobile terminal gravity treatment just directly can be made to treat in re-selecting cell to what meet reselection conditions, accelerate the process of described mobile terminal cell reselection, decrease the probability losing network side message, improve Consumer's Experience.
Further, consider when described mobile terminal is at the alien frequencies of system or in the time period of isosystem measurement, treat described in receiving that the synchronizing information of re-selecting cell also cannot make described mobile terminal treat that re-selecting cell is synchronous with described, at this moment mobile terminal can discharge the channel configuration of current area, and described in completing, treat the channel configuration of re-selecting cell, continue to receive remaining system message.Like this, also make described mobile terminal and describedly treat that the synchronizing process of re-selecting cell is shortened, reducing the probability losing network side message.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the residence reselecting of the mobile terminal of technical solution of the present invention;
Fig. 2 is the schematic flow sheet of the residence reselecting of the mobile terminal of the embodiment of the present invention one;
Fig. 3 is the schematic flow sheet of the residence reselecting of the mobile terminal of the embodiment of the present invention two.
Embodiment
When mobile terminal is connected state, system can issue to mobile terminal the measurement configuration carrying out alien frequencies or different system by eating dishes without rice or wine.Mobile terminal can carry out reselection evaluation based on the result of alien frequencies or isosystem measurement, determines and by the community of gravity treatment, namely may treat re-selecting cell from the adjacent cell of current area; Then these are treated to sort according to cell quality in re-selecting cell and current area, when a certain until the best in quality of re-selecting cell and the matter measured duration meets system requirements time, mobile terminal will discharge the channel configuration of current area, top-qualityly treat that re-selecting cell reconfigures channel according to this again, receive this top-quality synchronizing information treating re-selecting cell, until with this top-quality until re-selecting cell complete synchronous after, switch to this and top-qualityly treat re-selecting cell, complete cell reselection.
Due in above-mentioned reuse adoption process, mobile terminal first will discharge the configuration of current area, then the synchronizing information treating re-selecting cell that the quality of reception is best, causes reuse adoption process longer.Understandable, in the process received, the loss of network side message may be caused, affect the use of user.Especially when receiving not smooth, also further may extend the time of reception, more increasing the probability losing network side message, the experience of user is reduced.In order to solve the problem, technical solution of the present invention proposes a kind of residence reselecting of mobile terminal, as shown in Figure 1, comprising:
Step S10: under mobile terminal is in FACH state, based on alien frequencies or isosystem measurement, determines to treat re-selecting cell;
Step S11: make described mobile terminal with meet be with inter-sync condition treat that band inter-sync is carried out in re-selecting cell; Treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in alien frequencies or isosystem measurement;
Step S12: when meeting reselection conditions until re-selecting cell, described mobile terminal with meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Step S10 and S11 all performs within the time period of alien frequencies or isosystem measurement.
The residence reselecting of the mobile terminal of technical solution of the present invention, the alien frequencies of default or the time period of isosystem measurement can be utilized, perform the band inter-sync treating re-selecting cell, if when a certain when re-selecting cell meets reselection conditions mobile terminal through band inter-sync met with this reselection conditions to treat that re-selecting cell completes synchronous, what then can be directly switch to that this meets reselection conditions treats re-selecting cell, the process of cell reselection can be made thus to accelerate, saving for receiving the time of synchronizing information in cell reselection process, reducing the probability losing network side message.
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail technical solution of the present invention below in conjunction with embodiment and accompanying drawing.Below to support that the running of mobile terminal of WCDMA is described in FACH state.
Embodiment one
Existing mobile terminal carries out cell reselection basic procedure when FACH state comprises: mobile terminal is by receiving the System information block SIB11/12(SIB of current area, System Information Blocks) obtain the measuring machine meeting (FMO of mobile terminal under FACH state, FACH measurement occasion) relevant information, as carried out the cycle of alien frequencies or isosystem measurement, the time span etc. of execution; Then, mobile terminal, according to the FMO relevant information received, performs the measurement of alien frequencies or different system in next radio frames, and determines by the community of gravity treatment, namely to treat re-selecting cell according to the result measured; Meet after reselection conditions once some until re-selecting cell, mobile terminal is by the channel configuration of release current area, treat that channel configuration is carried out in re-selecting cell according to what meet reselection conditions again, get resident this meet reselection conditions after the synchronizing information of re-selecting cell, be switched to this community.Due to when mobile terminal is in FACH state, less for the chance of carrying out alien frequencies or isosystem measurement, the time of reselection evaluation will be caused so large compared with probability that is long, that lose network side message.
As shown in Figure 2, the residence reselecting of the mobile terminal of the present embodiment comprises:
Step S100: mobile terminal enters FACH state.
Mention above, when mobile terminal only has a small amount of user data, FACH state will be entered.At this moment, mobile terminal can perform alien frequencies or isosystem measurement according to the system information eating dishes without rice or wine to receive.
Step S101: based on alien frequencies or isosystem measurement, determines to treat re-selecting cell.Have very detailed description to alien frequencies or isosystem measurement in 3GPP agreement, technical solution of the present invention just repeats no more.The object of this step, be exactly running of mobile terminal when FACH state, the result based on alien frequencies or isosystem measurement carries out reselection evaluation, determines to treat re-selecting cell.Reselection evaluation, namely based on the result of described alien frequencies or isosystem measurement, calculates the mass parameter of each adjacent cell of current area; Adjacent cell mass parameter being greater than threshold value is defined as treating re-selecting cell.In a wcdma system, agreement regulation mobile terminal can configure at most 32 alien-frequency districts and 32 different system cells.Because each adjacent cell may from different network systems, such as wherein may there is WCDMA community, also GSM community or TD-SCDMA community may be had, because the signal strength signal intensity of the community of different networks cannot directly compare, therefore need the signal strength signal intensity measuring the community obtained to be mapped in unified criterion.At present, the most frequently used criterion is S criterion: namely according to the signal strength signal intensity measuring each adjacent cell obtained, calculation plot signal quality value Squal and cell signal strength value Srxlev, as Squal>0 and Srxlev>0 time, possibility gravity treatment is in this adjacent cell when cell reselection just to represent mobile terminal, and therefore this adjacent cell is and treats re-selecting cell.
Determine through step S101 at least one behind re-selecting cell, namely can start perform step S102.
Step S102: make described mobile terminal with meet be with inter-sync condition treat that band inter-sync is carried out in re-selecting cell.Wherein, treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in alien frequencies or isosystem measurement.
Known by analysis above, after mobile terminal enters into FACH state, just can obtain the parameter such as the execution cycle of alien frequencies or isosystem measurement and the time span of execution according to the system message of current area.If described in treat that the time of reception of the synchronizing information of re-selecting cell is just in time positioned at the alien frequencies of mobile terminal or the time period of isosystem measurement, so mobile terminal just can within the time period performing alien frequencies or isosystem measurement, configure the synchronizing channel treating re-selecting cell of described satisfied band inter-sync condition, and treat that re-selecting cell is carried out synchronous with these, i.e. so-called band inter-sync.Describedly treat that the synchronizing information of re-selecting cell comprises system Master Information Block and system information block, in a wcdma system, Master Information Block has fixing scheduling parameter and the frequency of occurrences, its schedule information issues in the broadcast channel of re-selecting cell described treating, as long as mobile terminal knows that this scrambler treating re-selecting cell is just easy to listen to its broadcast channel, thus obtain the schedule information of Master Information Block, comprise the initial frame number sending Master Information Block, the repetition period etc. sending Master Information Block.Due to mobile terminal reside in current area time, the frame number of adjacent cell can be read, therefore according to the schedule information of Master Information Block and the frame number treating re-selecting cell described in reading, the described time of reception treating the Master Information Block of re-selecting cell meeting synchronous condition can just be determined.Because Master Information Block repeated with the fixed cycle, when mobile terminal resides in current area, the Master Information Block that certain treats re-selecting cell can be received in the process of certain alien frequencies or isosystem measurement.Further, the schedule information of system information block is included again in Master Information Block, therefore the time of reception of system information block can at this moment just be obtained, thus the time of reception of certainty annuity block of information is when being positioned at the time period of which alien frequencies or isosystem measurement, thus the system information block that this treats re-selecting cell can be received within the time period of this measurement.
It should be noted that, in the process of certain alien frequencies once or isosystem measurement, possibly cannot obtain the complete effective synchronizing information that certain treats re-selecting cell, need repeatedly alien frequencies or isosystem measurement could obtain complete.Therefore, above-mentioned synchronizing process repeatedly to perform, as long as mobile terminal still resides in current area, will always with treat that band inter-sync is carried out in re-selecting cell, until obtain complete effective synchronizing information.Wherein, complete effective reselection requirement that the synchronizing information obtained meets described mobile terminal that refers to.
And within the time period of certain alien frequencies or isosystem measurement, also may have and multiplely treat that the synchronizing information of re-selecting cell can receive, at this moment mobile terminal can walk abreast and treat that the synchronizing information of re-selecting cell receives to these.
After step slol, perform step S103: when meeting reselection conditions until re-selecting cell, judge described mobile terminal whether with meet reselection conditions to treat that re-selecting cell completes synchronous, if then perform step S107, otherwise execution step S104.In the present embodiment, it is best and the duration being better than the quality of described current area is greater than time threshold that described reselection conditions comprises quality.Concrete, can judge according to R criterion.Sorted according to R criterion in current area and the re-selecting cell that needs, the expression cell quality coming foremost is best.According to the result of alien frequencies or isosystem measurement, if when coming the Bu Shi current area, community of foremost, just can think to have and somely treat that the cell quality of re-selecting cell is better than current area.If what come foremost treats that the quality of re-selecting cell is better than the duration overtime thresholding of the quality of current area, just represent that this treats that re-selecting cell meets reselection conditions, what mobile terminal should switch to that this meets reselection conditions treats re-selecting cell.In other embodiments, described reselection conditions also can comprise mass parameter and be greater than the 3rd threshold value and the duration that quality is better than the quality of described current area is greater than time threshold.
When there being one to meet reselection conditions until re-selecting cell, meet reselection conditions treat re-selecting cell may also be the satisfied band inter-sync condition determined in step S102 treat re-selecting cell, due in step s 102, mobile terminal utilizes the time period of alien frequencies or isosystem measurement, what met reselection conditions with this treats that band inter-sync has been carried out in re-selecting cell, so mobile terminal has probably completed and has treated the synchronous of re-selecting cell with this, therefore when the judged result of step S103 is for being, what mobile terminal just can be directly switch into that this meets reselection conditions treats re-selecting cell, namely perform step S107: described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.Compared with prior art, mobile terminal is without the need to after by the time determining Target cell (meet in other words reselection conditions until re-selecting cell), discharge the channel configuration of current area again, carry out the channel configuration of Target cell, with Target cell complete synchronous after, just gravity treatment can be completed, therefore not only accelerate the speed of cell reselection, also greatly reduce the probability losing network side message.
When the judged result of step S103 is no, perform step S104: make described mobile terminal discharge the channel configuration of current area, then perform step S105 and step S106.
Step S105: receive the described synchronizing information treating re-selecting cell meeting reselection conditions.
Step S106: judge mobile terminal whether with described meet reselection conditions to treat that re-selecting cell completes synchronous, when judged result is no, then return step S105, continue to receive; When judged result is for being, then perform step S107: described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
It should be noted that, may there are two kinds of situations in the execution of step S105:
A kind of situation is, described meet reselection conditions treat that re-selecting cell is also meet band inter-syncly to treat re-selecting cell, through the band inter-sync of step S102, what mobile terminal also may fail to meet with this reselection conditions treats that re-selecting cell is synchronous, then discharge the channel configuration of described current area in mobile terminal described in step S104 after, described in step S105, mobile terminal continues to receive the described synchronizing information treating re-selecting cell meeting reselection conditions.In other embodiments, also can first continue to receive described meet reselection conditions the synchronizing information until re-selecting cell until complete synchronous after, then discharge the channel configuration of described current area.Understandable, when some meet reselection conditions until re-selecting cell time, because the duration that is subject to the resident current area of mobile terminal and the number of times that carries out alien frequencies or isosystem measurement equal the impact of factor, mobile terminal also may not complete to meet reselection conditions with this treat the synchronous of re-selecting cell, therefore mobile terminal first can discharge the channel configuration of described current area, continues to receive the described synchronizing information treating re-selecting cell meeting reselection conditions.Usually, in the synchronizing process of step S102, mobile terminal more or less can get the described Partial synchronization information treating re-selecting cell meeting reselection conditions, the synchronizing information obtained in step s 102 still can use, and receives described other synchronizing informations treating re-selecting cell meeting reselection conditions in the continued access of step S105 relaying.As can be seen here, relative to prior art, still can make the time decreased that synchronizing process expends, gravity treatment speed can be accelerated, and decreases the probability losing network side message.
Another kind of situation is, described meet reselection conditions treat that re-selecting cell is not meet band inter-syncly to treat re-selecting cell, then discharge the channel configuration of described current area in mobile terminal described in step S104 after, in step S105, also need to configure the described synchronizing channel treating re-selecting cell meeting reselection conditions, receive the described synchronizing information treating re-selecting cell meeting reselection conditions again, namely after channel configuration, receive the described whole synchronizing information treating re-selecting cell meeting reselection conditions.
Can find out, the residence reselecting of the mobile terminal of the present embodiment, alien frequencies or the isosystem measurement time period of system configuration can be utilized, parallel carry out meeting band inter-sync condition treat the synchronous of re-selecting cell.Treat that re-selecting cell meets reselection conditions once some, what be just likely switched to that this meets reselection conditions immediately treats re-selecting cell, accelerates the flow process of mobile terminal cell reselection under FACH state.And, decrease the channel interrupted time, the probability losing network side message is declined greatly, improves Consumer's Experience.
In addition, treat that re-selecting cell meets reselection conditions when arbitrary, even if mobile terminal do not meet with this reselection conditions to treat that re-selecting cell completes completely synchronous, also can on the basis of the synchronous progress completed, proceed synchronous, therefore still can accelerate the speed of mobile terminal cell reselection, and reduce the probability losing network side message.
Embodiment two
The reselection evaluation of embodiment one and band inter-sync are parallel within the time period of alien frequencies or isosystem measurement to be carried out, further, the present embodiment utilizes band inter-sync demand schedule to realize reselection evaluation and inter-sync the walking abreast of band is carried out, Fig. 3 shows the residence reselecting detail flowchart of the mobile terminal of the present embodiment, specifically comprises:
Step S200: mobile terminal enters FACH state.
Step S201: the time period entering alien frequencies or isosystem measurement.
After mobile terminal enters FACH state, the configuration of alien frequencies or isosystem measurement can be obtained from system information, thus determine the time period of alien frequencies or isosystem measurement.Specifically can reference example one.
After within the time period entering alien frequencies or isosystem measurement, perform alien frequencies or isosystem measurement, and can parallel execution of steps S202 and step S203.
Step S202: carry out reselection evaluation, determines to treat re-selecting cell.Concrete enforcement can step S101 in reference example one.
Then step S205 is performed: what judgement was determined treats that re-selecting cell is the need of carrying out band inter-sync, according to protocol requirement, mobile terminal will reselect to arbitrary when re-selecting cell from current area, first need to treat that with this re-selecting cell is carried out synchronous, obtain that mobile terminal is resident treats the necessary synchronizing information in re-selecting cell to this.When preserved in mobile terminal mobile terminal resident to these when the synchronizing information of necessity of re-selecting cell, just without the need to treating that the community of gravity treatment is synchronized to this again; Or when foot straps inter-sync condition is discontented with in re-selecting cell, then cannot carry out band inter-sync.That is, when the judged result of this step is yes, then perform step S206, otherwise perform step S207.
Step S206: treat that re-selecting cell joins in band inter-sync demand schedule by described, continue to perform step S207.Namely, when meeting band inter-sync condition until re-selecting cell, that in band inter-sync demand schedule, records described satisfied band inter-sync condition treats re-selecting cell.Understandable, it is multiple that what step S202 determined treat that re-selecting cell can have, wherein, meet band inter-sync condition to treat that reselection conditions also can have multiple, be recorded in band inter-sync demand schedule, band inter-sync operation is afterwards with regard to only for treating that re-selecting cell is carried out in this band inter-sync demand schedule.
Step S207: the reselection evaluation having judged whether all adjacent cells, if then perform step S208, otherwise returns step S201, enters the time period of next alien frequencies or isosystem measurement, continues to perform step S202 and S203 within this time period.
Step S203: determine the time of reception treating the synchronizing information of re-selecting cell in described band inter-sync demand schedule.In this step, can by the current band inter-sync demand schedule of traversal, determine to be recorded in described band inter-sync demand schedule, be suitable for reception beginning and ending time for the treatment of the synchronizing information of re-selecting cell of receiving within the time period of current alien frequencies or isosystem measurement.It should be noted that, when also not determining until re-selecting cell, described band inter-sync demand schedule is empty, therefore can not perform step S303 and S304.
After step S203, continue to perform step S204: configuration needs to receive the synchronizing channel treating re-selecting cell of synchronizing information, receives current alien frequencies or the synchronizing information in the isosystem measurement time period.Understandable, when there being multiple synchronizing information until re-selecting cell can receive within the time period of current alien frequencies or isosystem measurement, mobile terminal can perform multiple band inter-sync operation treating re-selecting cell respectively.The concrete enforcement of step S203 and step S204 can step S102 in reference example one, repeats no more herein.
Further, after the reselection evaluation of all adjacent cells completes, continue to perform step S208: what judge whether to meet reselection conditions treats re-selecting cell, if then perform step S209, otherwise return step S201.The service quality had to make mobile terminal, needs mobile terminal gravity treatment in time can switch to the measured Serving cell of matter, concrete judgement, can step S103 in reference example one, repeats no more herein.
Step S209: judge described meet reselection conditions treat whether re-selecting cell is recorded in described band inter-sync demand schedule, if then perform step S210, otherwise perform step S211.
Step S210: the described synchronizing information treating re-selecting cell meeting reselection conditions received in obtaining step S204; Continue to perform step S212: judge that whether the described synchronizing information treating re-selecting cell meeting reselection conditions is effectively complete, if then perform step S213, otherwise perform step S214.If what meet reselection conditions treats that re-selecting cell is also be recorded in treat re-selecting cell in band inter-sync demand schedule just, what namely meet band inter-sync condition treats re-selecting cell, so may have received this and treat the synchronizing information that re-selecting cell is part or all of in step S204, therefore, when needing after re-selecting cell meets reselection conditions, can the directly synchronous progress of obtaining step S204 and synchronized result, and judge accordingly mobile terminal whether completed with described meet reselection conditions treat the synchronous of re-selecting cell.
Step S213, the channel configuration of described mobile terminal release current area.Continue to perform step S217: reselect to from current area described meet reselection conditions treat re-selecting cell.
Step S214, the channel configuration of described mobile terminal release current area, continues the synchronizing information treating re-selecting cell described in receiving; Then step S216 is performed: judge that whether the described synchronizing information treating re-selecting cell meeting reselection conditions is effectively complete, if then perform step S217, otherwise perform step S218.
If the judged result of step S209 is no, then perform step S211: the channel configuration of described mobile terminal release current area, configures the described synchronizing channel treating re-selecting cell meeting reselection conditions; Continue to perform step S215: receive the described synchronizing information treating re-selecting cell meeting reselection conditions.Then step S216 is performed.
Step S217: described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
Step S218, continues the synchronizing information treating re-selecting cell described in receiving, is then back to step S216.
At the mobile terminal of the present embodiment in the process of carrying out alien frequencies or isosystem measurement, synchronous treat that re-selecting cell is saved in band inter-sync demand schedule by needing to carry out, at each alien frequencies or in the isosystem measurement time period, obtain the synchronizing information treating re-selecting cell in described band inter-sync demand schedule, which save in cell reselection process and carry out the cell synchronous time, accelerate cell reselection speed, and reduce loss network side message volume probability.Maintain synchronous progress better by band inter-sync demand schedule and be easy to realize.
And, also do not complete when mobile terminal starts cell reselection with meet reselection conditions when re-selecting cell synchronous, describedly can meet on the basis for the treatment of the synchronizing information of re-selecting cell of reselection conditions what got, proceed synchronous, also can accelerate cell reselection process to a certain extent, and reduce the probability losing network side message.
In addition, the residence reselecting of the mobile terminal of the present embodiment, there is no impact to the realization of existing alien frequencies or isosystem measurement, therefore applicability is higher.
It will be appreciated by those skilled in the art that, realizing all or part of of technique scheme is that the hardware that can carry out instruction relevant by program has come, described program can be stored in readable storage medium storing program for executing, and described storage medium can be ROM, RAM, magnetic disc, CD etc.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (16)
1. a residence reselecting for mobile terminal, is characterized in that, comprising:
Under FACH state, based on alien frequencies or isosystem measurement, determine to treat re-selecting cell;
Make described mobile terminal with meet be with inter-sync condition treat that band inter-sync is carried out in re-selecting cell, treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in alien frequencies or isosystem measurement;
When meeting reselection conditions until re-selecting cell, described mobile terminal with meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
2. the residence reselecting of mobile terminal as claimed in claim 1, is characterized in that, described based on alien frequencies or isosystem measurement, determines to treat that re-selecting cell comprises:
Based on the result of described alien frequencies or isosystem measurement, calculate the mass parameter of each adjacent cell of current area;
Adjacent cell mass parameter being greater than threshold value is defined as treating re-selecting cell.
3. the residence reselecting of mobile terminal as claimed in claim 1, is characterized in that, described in make described mobile terminal with meet be with inter-sync condition treat that re-selecting cell is carried out band inter-sync and comprised:
Determine the time of reception of the synchronizing information treating re-selecting cell and the alien frequencies of described mobile terminal or the time period of isosystem measurement;
The time period that the time of reception of the synchronizing information of re-selecting cell is positioned at alien frequencies or isosystem measurement is treated when determined, then configure the synchronizing channel treating re-selecting cell of described satisfied band inter-sync condition, within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition.
4. the residence reselecting of mobile terminal as claimed in claim 3, it is characterized in that, described synchronizing information comprises Master Information Block and synchronous information block, describedly determines that the time of reception of the synchronizing information treating re-selecting cell comprises:
The time of reception of the Master Information Block of re-selecting cell is treated described in determining;
According to the described schedule information treating the synchronous information block that the Master Information Block of re-selecting cell comprises, described in determining, treat the time of reception of the synchronous information block that the Master Information Block of re-selecting cell comprises.
5. the residence reselecting of mobile terminal as claimed in claim 1, is characterized in that, treats that the quality of re-selecting cell is best and the duration being better than the quality of described current area is greater than time threshold described in described reselection conditions comprises.
6. the residence reselecting of mobile terminal as claimed in claim 1, is characterized in that, also comprise:
When meeting reselection conditions until re-selecting cell, described mobile terminal not with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal discharge the channel configuration of described current area, receive the described synchronizing information treating re-selecting cell meeting reselection conditions;
When described mobile terminal with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
7. the residence reselecting of mobile terminal as claimed in claim 6, it is characterized in that, described mobile terminal discharges the channel configuration of described current area, receive described meet reselection conditions treat that the synchronizing information of re-selecting cell comprises: described mobile terminal discharges the channel configuration of described current area, continues to receive the described synchronizing information treating re-selecting cell meeting reselection conditions.
8. the residence reselecting of mobile terminal as claimed in claim 6, it is characterized in that, described mobile terminal discharges the channel configuration of described current area, receive described meet reselection conditions treat that the synchronizing information of re-selecting cell comprises: described mobile terminal discharges the channel configuration of described current area, configure the described synchronizing channel treating re-selecting cell meeting reselection conditions, receive the described synchronizing information treating re-selecting cell meeting reselection conditions.
9. the residence reselecting of mobile terminal as claimed in claim 1, is characterized in that, also comprise: when meeting band inter-sync condition until re-selecting cell, and that in band inter-sync demand schedule, records described satisfied band inter-sync condition treats re-selecting cell;
Described within the time period of alien frequencies or isosystem measurement, receive described satisfied band inter-sync condition treat that the synchronizing information of re-selecting cell comprises: within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell recorded in described band inter-sync demand schedule.
10. a cell reselection device for mobile terminal, is characterized in that, comprising:
Determining unit, under FACH state, based on alien frequencies or isosystem measurement, determines to treat re-selecting cell;
First lock unit, treat that band inter-sync is carried out in re-selecting cell for what make described mobile terminal and described satisfied band inter-sync condition, treat that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement described in described band inter-sync condition comprises, described in receive described satisfied band inter-sync condition in time period of carrying out being with inter-sync to be included in described alien frequencies or isosystem measurement treat re-selecting cell synchronizing information;
First gravity treatment unit, for when meeting reselection conditions until re-selecting cell, described mobile terminal with meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
The cell reselection device of 11. mobile terminals as claimed in claim 10, it is characterized in that, described determining unit comprises:
Computing unit, for the result based on described alien frequencies or isosystem measurement, calculates the mass parameter of each adjacent cell of current area;
First determines subelement, is defined as treating re-selecting cell for adjacent cell mass parameter being greater than threshold value.
The cell reselection device of 12. mobile terminals as claimed in claim 10, it is characterized in that, described first lock unit comprises:
Second determines subelement, for determining the time of reception of the synchronizing information treating re-selecting cell and the alien frequencies of described mobile terminal or the time period of isosystem measurement;
Receiving element, for determinedly treating that the time of reception of the synchronizing information of re-selecting cell is positioned at the time period of alien frequencies or isosystem measurement, then configure the synchronizing channel treating re-selecting cell of described satisfied band inter-sync condition, within the time period of alien frequencies or isosystem measurement, receive the synchronizing information treating re-selecting cell of described satisfied band inter-sync condition.
The cell reselection device of 13. mobile terminals as claimed in claim 10, is characterized in that, also comprise:
Second lock unit, for when meeting reselection conditions until re-selecting cell, described mobile terminal not with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal discharge the channel configuration of described current area, receive the described synchronizing information treating re-selecting cell meeting reselection conditions;
Second gravity treatment unit, for when described mobile terminal with described meet reselection conditions treat that re-selecting cell is synchronous, then make described mobile terminal reselect to from current area described meet reselection conditions treat re-selecting cell.
The cell reselection device of 14. mobile terminals as claimed in claim 10, it is characterized in that, also comprise: record cell, for when meeting band inter-sync condition until re-selecting cell, that in band inter-sync demand schedule, records described satisfied band inter-sync condition treats re-selecting cell;
Described first lock unit, within the time period of alien frequencies or isosystem measurement, receives the synchronizing information treating re-selecting cell recorded in described band inter-sync demand schedule.
15. 1 kinds of mobile terminals, is characterized in that, comprise the cell reselection device of the mobile terminal described in any one of claim 10 to 14.
16. mobile terminals as claimed in claim 15, is characterized in that, described mobile terminal is the mobile terminal supporting WCDMA.
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| CN201310475680.8A CN104581841B (en) | 2013-10-12 | 2013-10-12 | Mobile terminal and its residence reselecting and device |
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| CN201310475680.8A CN104581841B (en) | 2013-10-12 | 2013-10-12 | Mobile terminal and its residence reselecting and device |
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| CN104581841B CN104581841B (en) | 2018-07-27 |
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| CN104581841B (en) | 2018-07-27 |
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