CN104144452A

CN104144452A - Inter-modal ping-pong reselection recognition and prevention method and device for communication terminal

Info

Publication number: CN104144452A
Application number: CN201310168347.2A
Authority: CN
Inventors: 金逸; 陈贤亮; 尉霞; 韩巍
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2014-11-12
Anticipated expiration: 2033-05-08
Also published as: CN104144452B

Abstract

The invention relates to an inter-modal ping-pong reselection recognition and prevention method and device for a communication terminal. The recognition method includes the steps that a reselection cell table of the communication terminal is recorded, and the reselection cell table contains at most K cells corresponding to cell reselection completed by the communication terminal; a corresponding first timer is arranged for each cell in the reselection cell table; if cell reselection happens when the communication terminal stays in a reselection launching cell, the first timer corresponding to the reselection launching cell is started; during the running period of the first timer, the reselection launching cell is further reselected by the communication terminal, the cell reselection process starting from the reselection launching cell includes at least one time of inter-modal cell reselection, and the cell reselection process starting from the reselection launching cell is recognized as inter-modal ping-pong reselection starting from the reselection launching cell. Compared with the prior art, due to the technical scheme, the inter-modal pint-pong reselection recognition and prevention method and device for the communication terminal have higher recognition efficiency, and more resources of the communication terminal are saved.

Description

Ping-pong reselection identification between the pattern of communication terminal, the method and apparatus preventing

Technical field

The present invention relates to the communications field, the method and apparatus that relate in particular to ping-pong reselection identification between a kind of pattern of communication terminal, prevents.

Background technology

The mobile communication of Present Global has developed into the stage of 4G commercialization, in many countries and regions, has 2G, and 3G and 4G standard network coexisted but cover the situation differing objectively produced the real market demand of multimode terminal.From the industry standard of mobile communication, it is perfect that the cell reselection specification between each networks with different systems has been tending towards substantially.But due to complexity and the intrinsic radio characteristics of mobile communication system of multimode network the planning of dis environment lower network, easily there is the ping-pong reselection of multimode terminal between multiple different access modules.

Currently available technology can solve the ping-pong reselection problem of communication terminal, the current resident community of communication terminal and all adjacent cells are all arranged to a clock, in the time of resident some specific cells, there is cell reselection and just open clock corresponding to this specific cell, if before this clock is overtime, terminal when this specific cell is gone back in gravity treatment again, is so just thought ping-pong reselection has been occurred.Once assert ping-pong reselection occurs, the measure that just can measure by extending gravity treatment judgement time or raising gravity treatment the increasing gravity treatment difficulty such as thresholding prevents ping-pong reselection.

If when the method that prevents ping-pong reselection in prior art is promoted the use of to multimode terminal, because multimode terminal may exist a large amount of adjacent cells, therefore need to arrange a large amount of clocks, and in cell reselection process, also may there be a lot of clocks in operation simultaneously, take a large amount of system resource, the complexity of its operation is also very high.

The U.S. Patent application that correlation technique can be US8045989B2 with reference to publication number.

Summary of the invention

The problem that the present invention solves is that identification, the prevention method occupying system resources of the ping-pong reselection of the communication terminal of prior art is many, complicated operation, be not suitable for expanding to the problem using in multimode terminal.

For addressing the above problem, the invention provides ping-pong reselection between a kind of pattern of communication terminal and know method for distinguishing, comprising:

Record the re-selecting cell table of described communication terminal, described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2;

Each community in the table of described re-selecting cell is arranged respectively to the first corresponding timer;

If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community;

At described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.

Optionally, the value of K based on communication terminal complete a cell reselection length consuming time and identification ping-pong reselection crash time determine.

Optionally, K=23.

Between the pattern of optionally, described communication terminal, ping-pong reselection knowledge method for distinguishing also comprises:

If described communication terminal completes after any cell reselection, resident community does not belong to described re-selecting cell table, described resident community is increased in the table of described re-selecting cell, and the first corresponding timer is set.

Optionally, if when the number of community corresponding to the completed cell reselection of described communication terminal is greater than K, K the community that record finally completes cell reselection in the table of described re-selecting cell.

Described in identifying, between the pattern of gravity treatment initiation community, ping-pong reselection, stop described gravity treatment and initiate the first timer corresponding to community.

Delete from the table of described re-selecting cell being greater than the first timer of the first Preset Time and corresponding community thereof running time.

Optionally, the default priority level of the access module under described the first Preset Time community based on corresponding is determined.

Optionally, the span of described the first Preset Time is 30～180 seconds.

Optionally, describedly initiate the cell reselection process that sets out of community by gravity treatment and comprise at least one times the determining step of cell reselection between pattern and comprise:

The access module of supporting with communication terminal forms mode sequences, and described mode sequences has relative first direction and second direction;

Each access module last access module on first direction is arranged to the second corresponding timer;

Carry out cell reselection if described communication terminal is initiated access module by gravity treatment to the arbitrary access module on described first direction, start described gravity treatment and initiate the second timer corresponding to community;

At the run duration of described the second timer, if described communication terminal initiates to the described gravity treatment in described second direction the cell reselection success that access module carries out by arbitrary access module, judge cell reselection between emergence pattern.

Optionally, the access module in described mode sequences is by each self-corresponding default prioritization, and described first direction is described pre-setting priority Sort Direction from high to low.

If described communication terminal is initiated access module corresponding to community while initiating to the described gravity treatment on described first direction cell reselection success that access module corresponding to community carry out to the cell reselection failure of the arbitrary access module on described first direction or by arbitrary access module by described gravity treatment, stop described gravity treatment and initiate the second timer corresponding to community.

Optionally, between the pattern of described communication terminal, ping-pong reselection knowledge method for distinguishing also comprises: described the second timer that is greater than the second corresponding Preset Time running time is stopped, and described the second Preset Time carries out the consuming time of cell reselection and determines between corresponding access module and other access modules based on described communication terminal.

Optionally, the span of described the second Preset Time is 30～180 seconds.

For addressing the above problem, technical solution of the present invention also provides a kind of method that between pattern of communication terminal, ping-pong reselection prevents, comprising:

Identifying between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improving described communication terminal and initiate community by described gravity treatment and carry out to other communities the reselection conditions that cell reselection is required to meet.

Optionally, described reselection conditions at least comprises following any one:

Described communication terminal is initiated cell reselection to other communities desired cell signal strength/quality gate limit value by described gravity treatment;

When initiating community, the resident described gravity treatment of described communication terminal measures other cell signal strength/quality required time threshold values.

The method that between the pattern of optionally, described communication terminal, ping-pong reselection prevents also comprises:

Record the recovery re-selecting cell table of described communication terminal, described recovery re-selecting cell table comprises maximum M and recovers re-selecting cell, wherein M=2K, and described recovery re-selecting cell refers to the community that between described pattern, after ping-pong reselection, reselection conditions is enhanced occurs;

Each community in the table of described recovery re-selecting cell is arranged respectively to the 3rd corresponding timer;

Identifying after the ping-pong reselection that described communication terminal occurred to be initiated to set out community by described gravity treatment, start described gravity treatment and initiate the 3rd timer corresponding to community;

If described gravity treatment initiates to be greater than the 3rd Preset Time the running time of the 3rd timer corresponding to community, reduce described communication terminal and initiate by described gravity treatment the reselection conditions that cell reselection is required to meet to other communities, described the 3rd Preset Time carries out the consuming time of cell reselection based on described communication terminal and determines.

Optionally, reducing described communication terminal is comprised by described gravity treatment initiation cell reselection to the reselection conditions that other communities are required to meet: current reselection conditions is directly reduced to and identifies the original reselection conditions setting before ping-pong reselection between described pattern.

Optionally, the described communication terminal of described reduction is initiated cell reselection to the reselection conditions that other communities are required to meet by described gravity treatment and is comprised: progressively reduce described reselection conditions with described the 3rd timer operation expired times increase, until return to described original reselection conditions, out of service and restart when wherein said the 3rd timer is greater than the 3rd corresponding Preset Time running time, described expired times refer to that described the 3rd timer is greater than the number of times of described the 3rd Preset Time.

Optionally, the method that between the pattern of described communication terminal, ping-pong reselection prevents also comprises: be the run duration at described the 3rd timer if identify ping-pong reselection between the pattern of being initiated to set out community by described gravity treatment, restart described the 3rd timer.

Optionally, the span of described the 3rd Preset Time is 30～180 seconds.

For addressing the above problem, technical solution of the present invention also provides the device of ping-pong reselection identification between a kind of pattern of communication terminal, comprise: table record unit, re-selecting cell, for recording the re-selecting cell table of described communication terminal, described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2; The first timer group, comprises corresponding the first timer in each community in the table of described re-selecting cell, and described the first timer is for carrying out gravity treatment timing to Biao Zhongge community, re-selecting cell; If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community; Ping-pong reselection recognition unit, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.

For addressing the above problem, technical solution of the present invention also provides the device that between a kind of pattern of communication terminal, ping-pong reselection prevents, comprise: table record unit, re-selecting cell, for recording the re-selecting cell table of described communication terminal, described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2; The first timer group, comprises corresponding the first timer in each community in the table of described re-selecting cell, and described the first timer is for carrying out gravity treatment timing to Biao Zhongge community, re-selecting cell; If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community; Ping-pong reselection recognition unit, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment; The anti-stop element of ping-pong reselection, for identifying between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improve described communication terminal and initiate community by described gravity treatment and carry out to other communities the reselection conditions that cell reselection is required to meet.

Compared with prior art, technical scheme of the present invention has the following advantages:

The method that between the pattern that technical solution of the present invention provides, ping-pong reselection is identified and prevented, the part community that only communication terminal has been completed to gravity treatment arranges clock, the quantity of the described clock for gravity treatment judgement is greatly reduced, save system resource, reduce the complexity of identifying, and improved the efficiency of identifying and prevent ping-pong reselection between pattern.

Further, part access module to communication terminal support need to arrange clock, and and if only if gravity treatment just starts clock while occurring in first direction, the probability of the quantity of clock and startup clock all reduces to some extent, save system resource, reduce the complexity of identifying, and improved the efficiency of identifying and prevent ping-pong reselection.

In cell reselection process between recognition mode, technical solution of the present invention sorts the access module of communication terminal support according to each self-corresponding pre-setting priority, can overcome the communication terminal that prior art may cause and reside in for a long time in the network of low priority, cannot obtain the shortcoming of high-quality service.

The identification of ping-pong reselection and prevention method between the pattern that technical solution of the present invention provides, deleted by the community of gravity treatment and corresponding reselection timer again by not having in a period of time, more saved the memory source of communication terminal.

In addition, the method that between the pattern of the communication terminal that technical solution of the present invention provides, ping-pong reselection prevents, can also be at the gravity treatment thresholding that does not progressively recover in ping-pong reselection between emergence pattern to be enhanced, avoid the gravity treatment thresholding adverse effect causing for subsequent reselection that remains high.

Brief description of the drawings

Fig. 1 is the schematic flow sheet that between the pattern of communication terminal of the embodiment of the present invention one, ping-pong reselection is known method for distinguishing;

Fig. 2 is the schematic flow sheet of the identifying of cell reselection between the pattern of the embodiment of the present invention one;

Fig. 3 is the schematic flow sheet of the method that between the pattern of communication terminal of the embodiment of the present invention two, ping-pong reselection prevents;

Fig. 4 is the schematic flow sheet of the method that between the pattern of communication terminal of the embodiment of the present invention three, ping-pong reselection prevents;

Fig. 5 is the structural representation of the device of ping-pong reselection identification between the pattern of communication terminal of the embodiment of the present invention four;

Fig. 6 is the structural representation of the device that between the pattern of communication terminal of the embodiment of the present invention five, ping-pong reselection prevents.

Embodiment

As stated in the Background Art, by identification in prior art with while preventing that between pattern, the method for ping-pong reselection is generalized in multi-mode communication terminal, exactly the current resident community of communication terminal and all adjacent cells thereof are arranged to each self-corresponding reselection timer, in the time of communication terminal generation cell reselection, reselection timer corresponding to persistent district while starting corresponding gravity treatment generation, if at described reselection timer run duration communication terminal when community corresponding to described reselection timer gone back in gravity treatment again, and at least comprise two kinds of access modules in cell reselection process time, can judge the ping-pong reselection setting out in Liao Conggai community occurs, then improve the reselection conditions of this cell reselection to other communities, with the generation of restriction ping-pong reselection.When cell reselection between judgment model, also need every kind of access module that a reselection timer is set, in the time that cell reselection is the cell reselection of cross-module formula, the reselection timer of the corresponding access module of persistent district while starting cell reselection, if at timer run duration, this access module is returned in gravity treatment again, can judge the cell reselection having occurred between pattern.

But along with multimode moves the increasing of access module type of support, the quantity of the timer needing also can proportionally increase, and the timer quantity that simultaneously may start operation also can be a lot, and in fact, wherein most of clock is all the unnecessary wasting of resources.This,, for the extremely valuable communication terminal of memory source, can cause very large impact to systematic function.And, when cell reselection between the recognition mode of prior art, each access module of communication terminal support be there is no yet to the differentiation of priority, cannot obtain optimum performance thereby therefore may cause communication terminal to reside in for a long time in non-optimum access module.

In order to address the above problem, technical solution of the present invention provides the identification of ping-pong reselection between a kind of pattern of communication terminal and the method preventing, only need the part community of the successful gravity treatment of communication terminal that reselection timer is set, make the quantity of timer reduce a lot, save the memory source of communication terminal, reduce the complexity of identifying, improved the efficiency that between pattern, ping-pong reselection is identified and prevented.Simultaneously, the knowledge method for distinguishing of ping-pong reselection between the pattern of technical solution of the present invention, the access module of communication terminal support is sorted according to default priority, only that the community of the access module higher by priority is during to the community of the lower access module of priority in gravity treatment, just improve reselection conditions, overcome in prior art, may cause communication terminal to reside in for a long time in non-optimum access module, cannot obtain the shortcoming of optimal service.

Further, in a period of time not by the community of successful gravity treatment again, Hai Huijianggai community and corresponding reselection timer thereof are deleted in the lump, to save the system resource of communication terminal.

In addition, for the community that gravity treatment no longer occurred in a period of time, the reselection conditions being enhanced can progressively reduce, and avoids the cell reselection that communication terminal need to normally be carried out because reselection conditions is too harsh to complete.

For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiment of the invention is described in detail.

Embodiment mono-

Be illustrated in figure 1 ping-pong reselection between the pattern of communication terminal of the embodiment of the present invention and know the schematic flow sheet of method for distinguishing, comprising:

Step S11: the re-selecting cell table that records described communication terminal.Described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of communication terminal, and wherein K is greater than or equal to 2.Concrete, the crash time that the value of K completes cell reselection institute's length consuming time according to communication terminal and identifies ping-pong reselection determines, K equals to identify the number of times of the cell reselection that can complete in the crash time of ping-pong reselection.Understandable, when communication terminal after one sufficiently long period again gravity treatment return behind original community, do not think to have occurred ping-pong reselection, this sufficiently long time is exactly the crash time of described identification ping-pong reselection, can comprehensively determine according to communication terminal and mobile network's characteristic, general range can be 2.5 minutes to 3.5 minutes.The crash time of table tennis identification gravity treatment in the present embodiment equals 3 minutes.And under normal circumstances, the time span that most of communication terminals complete a cell reselection is probably 8s, so according to the above-mentioned definition to K value, K just equals 23.For the ease of record, can complete according to communication terminal the order record successively of cell reselection, for example, normal resident first community C1 of communication terminal start, is increased to C1 in the table of described re-selecting cell; If there is afterwards successful gravity treatment to a second community C2, C2 is increased in the table of described re-selecting cell; The like, can record at most K community.If in the time that community number corresponding to the completed cell reselection of communication terminal is greater than K, can be according to the principle of first in first out, K community corresponding to K cell reselection that record finally completes in the table of described re-selecting cell.Each community can be distinguished with globally unique cell ID.

Step S12: the each community in the table of described re-selecting cell is arranged respectively to the first corresponding timer.Wherein the first timer is that communication terminal is for carrying out the timer of gravity treatment timing.For example, table Zhong C1 community, re-selecting cell is arranged to the first corresponding timer TC1, DuiC2 community arranges the first corresponding timer TC2, and K the first timer is set at most.Described in step S11, communication terminal completes after any cell reselection, if resident community, not in the table of described re-selecting cell, is increased to described resident community in the table of described re-selecting cell, now also to the first corresponding with it timer be set to the community of this increase.Visible, compared with the recognition methods of ping-pong reselection between the pattern of prior art, number for the first timer of gravity treatment timing in the present embodiment mostly is 23 most, for multi-mode communication terminal, the quantity that is used for the timer of identifying gravity treatment has considerable minimizing, save to a certain extent the system resource of communication terminal, also can improve the efficiency of gravity treatment identifying.

Step S13: if there is cell reselection when community is initiated in the resident gravity treatment of described communication terminal, start described gravity treatment and initiate the first timer corresponding to community.It can be the arbitrary community in the table of re-selecting cell that community is initiated in described gravity treatment.For example, when communication terminal resides in while there is cell reselection in C1, start TC1, community C1 attaches most importance to and has published community; When communication terminal success gravity treatment is when again cell reselection occurring after in C2, start TC2, now C2 also attaches most importance to and has published community.That is to say, each cell reselection process all can start first timer, and community is initiated in an also just corresponding gravity treatment, and may exist multiple gravity treatments to initiate community simultaneously.

Step S14: at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.It is to initiate community with the corresponding gravity treatment of described the first timer that community is initiated in described gravity treatment.

Wherein, initiate the cell reselection process that sets out of community by gravity treatment and comprise at least one times cell reselection between pattern and can adopt prior art for described, a kind of identifying of prior art is: the access module of communication terminal support is all arranged to a reselection timer, in the time there is the cell reselection from an access module to another one access module in communication terminal, the reselection timer of access module corresponding to persistent district while starting cell reselection, if at this reselection timer run duration, communication terminal again gravity treatment returns this access module, judge that the cell reselection between pattern has occurred communication terminal.In order further to save system resource, reduce identification complexity and improve systematic function, in the present embodiment, to the deterministic process of the cell reselection between pattern as shown in Figure 2, comprise the steps:

Step S141: the access module of supporting with communication terminal forms mode sequences, and described mode sequences has relative first direction and second direction.Concrete, in this step, the pre-setting priority corresponding according to each access module sorts to the access module of communication terminal support.Wherein default priority can arrange according to the state of user's request or network reality, is default priority such as selecting resident priority, or is default priority etc. according to the sequencing of searching net after start.Generally, in order to ensure that communication terminal can obtain optimum performance, select resident priority as default priority.Taking three mould communication terminals as example, three kinds of access modules supporting are respectively MODE1, MODE2 and MODE3, if communication terminal can obtain better serviceability while residing in the network of MODE1, to be set to priority the highest for MODE1, is in like manner priority time high MODE2 and the minimum MODE3 of priority successively.After sorting from high to low by resident priority, mode sequences is just { MODE1, MODE2, MODE3}.Then, also described mode sequences has been defined to relative first direction and second direction.In the present embodiment, be first direction by high priority to the direction of low priority, as from MODE1 to MODE2 or MODE3, direction from MODE2 to MODE3; So, the direction from low priority to high priority is just second direction, for example, from MODE3 to MODE1 or MODE2, direction from MODE2 to MODE1.When concrete enforcement, in the time not having resident priority to require, also can be randomly ordered to each access module.After randomly ordered, can select either direction is first direction, with first party be second direction in the opposite direction.

Step S142: the each access module last access module on first direction is arranged to the second corresponding timer.MODE1 and MODE2 are arranged respectively to the second corresponding timer TP1 and TP2, MODE3 is not arranged.Wherein, the second timer is used for described each access module to carry out gravity treatment timing.

Step S143: carry out cell reselection if described communication terminal is initiated access module by described gravity treatment to the arbitrary access module on described first direction, start described gravity treatment and initiate the second timer corresponding to community.Wherein, communication terminal institute access module corresponding to persistent district when gravity treatment initiation access module can be understood as any gravity treatment generation.Meanwhile, only have when cell reselection be on described first direction time, just can start gravity treatment and initiate the second timer corresponding to access module.In the time that communication terminal carries out cell reselection from MODE1 to MODE2, can think that MODE1 attaches most importance to have published access module, start the TP1 that MODE1 is corresponding simultaneously.Understandable, may have multiple timers and be activated, that is to say that the same time may have multiple gravity treatments and initiate access module.While residing in the community of MODE1 such as, communication terminal, if while having there is the gravity treatment from MODE1 to MODE2, just start the TP1 that MODE1 is corresponding, MODE1 just becomes gravity treatment and initiates access module; Then there is again the gravity treatment from MODE2 to MODE3 in communication terminal, now started again TP2, and MODE2 also becomes gravity treatment and initiates access module.

Visible, in the present embodiment, start the restrictive condition of the second timer attach most importance to publish raw in a first direction, therefore compared with prior art between judgment model the deterministic process of cell reselection compare, the probability that the second timer is activated subtracts and is a half.Simultaneously integrating step S142, timer quantity also reduces to some extent, so just greatly reduces cell reselection deterministic process between pattern because timer moves the load that system is caused, and has improved the efficiency judging.

Mention above, the same time may exist multiple gravity treatments to initiate access module and start the second timer moving.In order further to save system resource, in the specific implementation, can also be out of service to meeting the second timer that the gravity treatment access module of stop condition is corresponding, described stop condition is described communication terminal and initiates the cell reselection failure of access module to the arbitrary access module on described first direction by described gravity treatment, or initiates to the described gravity treatment on described first direction the cell reselection success that access module carries out by arbitrary access module.Such as, there is the gravity treatment from MODE1 to MODE2 at TP2 run duration communication terminal, can stop TP2 operation.In addition, in the time that be greater than the second Preset Time the running time of the second timer, also can stop, i.e. overtime stopping.Such as, after reaching the second Preset Time, TP1 timing just stops.Wherein, the second Preset Time adds that from carrying out the consuming time of cell reselection between corresponding access module and other access modules certain idle waiting time definite by described communication terminal, general span is 30～180 seconds, and concrete value can be determined according to the aggregation of data of the type of access module and on-the-spot test.Such as in the time that MODE2 is WCDMA, the second Preset Time can be set as 60 seconds.

Step S144: at the run duration of described the second timer, if described communication terminal initiates to the described gravity treatment in described second direction the cell reselection success that access module carries out by arbitrary access module, judge the cell reselection between emergence pattern.Initiate the second timer run duration corresponding to access module in a certain gravity treatment, communication terminal is initiated access module from successfully reselecting to this gravity treatment with priority lower than the access module of this gravity treatment initiation access module, just thinks that communication terminal has occurred from the cell reselection between the pattern of gravity treatment initiation access module.Such as, when at TP1 run duration, communication terminal reselects to MODE1 by MODE2 or MODE3, reuse adoption process can be identified as from the cell reselection between the pattern of MODE1; For another example, if at TP2 run duration, communication terminal reselects to MODE2 by MODE3, gravity treatment can be identified as from the cell reselection between the pattern of MODE2.

Understandable, communication terminal is in the time often completing a cell reselection, must start first timer, but owing to not being that each cell reselection meets the Rule of judgment of step S141 to cell reselection between the pattern described in step S144, not therefore that each cell reselection all can start second timer.But as long as at the first timer run duration, when communication terminal again gravity treatment return gravity treatment corresponding to this first timer and initiate community, and there is the cell reselection between above-mentioned at least one times pattern, can judge that communication terminal has occurred to initiate ping-pong reselection between pattern that community occurs from gravity treatment.So far, just completed the identification of ping-pong reselection between the pattern of communication terminal.

In other embodiments, in order further to save the memory source of communication terminal, can also delete the first timer that is greater than the first Preset Time running time, the community corresponding with the first timer that is greater than the first Preset Time running time deleted from the table of described re-selecting cell, to save the memory cost of communication terminal simultaneously.Wherein, the first Preset Time can be determined by self the attribute based on its corresponding community, such as the default priority according to the access module at this place, community is determined.For example, ping-pong reselection when between the pattern that communication terminal occurs to set out Liao Cong C1 community, the highest MODE1 of access module priority that RuoC1 community is corresponding, what the first Preset Time can arrange is relatively long; Access module corresponding to RuoC1 community is the MODE3 that priority is minimum, and what the first Preset Time can arrange is relatively short.Generally, the scope of the first Preset Time is 30 to 180 seconds.

Visible, compared with prior art, between the pattern of the embodiment of the present invention in the recognition methods of ping-pong reselection, all reduce to some extent for carrying out the first timer of gravity treatment judgement and the quantity of the second timer and starting probability, make between pattern that the identifying of ping-pong reselection is easier, easy operating, and save system resource, improved the efficiency of identification.

Embodiment bis-

The schematic flow sheet that is illustrated in figure 3 the method that between the pattern of communication terminal of the embodiment of the present invention, ping-pong reselection prevents, comprising:

Step S21: identification is from ping-pong reselection between the pattern of gravity treatment initiation community.Concrete identifying can be with reference to the embodiment of the present invention one.

Step S22: improve described communication terminal and carry out to other communities the reselection conditions that cell reselection is required to meet by described gravity treatment initiation community.When communication terminal carries out cell reselection, generally will satisfied condition be that the signal strength/quality of Target cell is better than current area and exceedes certain hour, two conditions are wherein just comprised, first condition is that the signal strength/quality of Target cell will reach requirement, be that described communication terminal gravity treatment is to other communities desired cell signal strength/quality gate limit value, after the signal strength/quality that second condition is Target cell meets first condition, its lasting time also will reach requirement, while being the resident described gravity treatment initiation of described communication terminal community, measure cell signal strength/quality required time threshold value of other communities.Understandable, improve these two conditions and just can make the difficulty of cell reselection strengthen, thereby between unrestricted model, the continuation of ping-pong reselection occurs.For example, there is ping-pong reselection between pattern that Liao Cong community C1 sets out when judge communication terminal through step S21, so just improve community C1 and carry out the desired cell signal strength/quality gate of cell reselection limit value to other communities, and communication terminal measures the time gate limit value of the cell signal strength/quality requirement of other communities while residing in C1 community, occur with the continuation of ping-pong reselection between unrestricted model.Concrete, the raising stepping of cell signal strength/quality gate limit value of described requirement and the time gate limit value of requirement can arrange, such as being set to 9dB and 5s.

In other embodiments, when also can only comprising described communication terminal gravity treatment other communities desired cell signal strength/quality gate limit value or the resident described gravity treatment initiation of described communication terminal community, reselection conditions measures cell signal strength/quality required time threshold value of other communities, can strengthen equally communication terminal and initiate the difficulty of community to other cell reselections from gravity treatment, thus the generation of ping-pong reselection between unrestricted model.

It should be noted that, between the each pattern of communication terminal, after ping-pong reselection, all can improve described reselection conditions.And be possible repeat to occur from ping-pong reselection between the pattern of gravity treatment initiation community, therefore reselection conditions can progressively improve with gravity treatment frequency, that is to say between the community of ping-pong reselection between easier emergence pattern, and gravity treatment thresholding will be stricter.The so also demand of realistic use, avoids the frequent generation of ping-pong reselection between pattern.

To sum up, compared with prior art, the method that between the pattern of the communication terminal that the present embodiment provides, ping-pong reselection prevents, because the quantity of setting and the probability of startup timer operation of timer have a considerable amount of minimizings, can save system resource for communication terminal, raising communication terminal prevents the efficiency of ping-pong reselection between pattern.

Further, in identifying due to the cell reselection between pattern, mode sequences sorts according to the each self-corresponding pre-setting priority of access module, make the raising of reselection conditions be only limited in gravity treatment be from the access module of higher priority the direction of the access module of lower priority, can overcome the shortcoming in the network that communication terminal that prior art may cause resides in non-optimum access module for a long time, can ensure that user obtains optimum service, improve the performance of communication terminal and user's Experience Degree.

Embodiment tri-

As shown in Figure 4, be the schematic flow sheet of the method that between the pattern of the communication terminal of the embodiment of the present invention, ping-pong reselection prevents, comprising:

Step S31: the recovery re-selecting cell table that records described communication terminal.Described recovery re-selecting cell table comprises maximum M and recovers re-selecting cell, wherein M=2K, and described recovery re-selecting cell refers to the community that between described pattern, after ping-pong reselection, reselection conditions is enhanced occurs.M can determine according to the value of K and actual experience of arranging net, and generally get the twice of K,, in the time that K value is 23, M just equals 46.Concrete, while residing in community C1 after communication terminal start, occur after the ping-pong reselection between pattern, improve the reselection conditions of Liao Cong community C1 to other communities, C1, just for recovering re-selecting cell, should be increased in the table of described recovery re-selecting cell; Ping-pong reselection between pattern has occurred afterwards in the time that communication terminal resides in community C2, and improved the reselection conditions of community C2 to other communities, now C2, also for recovering re-selecting cell, should be increased in the table of described recovery re-selecting cell; By that analogy, recover re-selecting cell until record maximum M.Similar with the described re-selecting cell table in the embodiment of the present invention one, in the time that the recovery re-selecting cell number in the table of communication terminal recovery re-selecting cell is greater than M, can be according to the principle of first in first out, in the table of described recovery re-selecting cell, record last M the community that ping-pong reselection between described pattern and reselection conditions are enhanced has occurred.While record, distinguish each community with globally unique cell ID.

Step S32: the each community in the table of described recovery re-selecting cell is arranged respectively to the 3rd corresponding timer.Described the 3rd timer is to initiate community to the reselection conditions of other cell reselections for recovering gravity treatment.For example, community C1 is arranged to the 3rd corresponding timer TR1, for community C2, the 3rd corresponding timer TR2 is set, can have at most M the 3rd timer.Then perform step S33.

Step S33: identifying between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improve described communication terminal and carry out to other communities the reselection conditions that cell reselection is required to meet by described gravity treatment initiation community, and start the 3rd timer corresponding to described gravity treatment initiation community., ping-pong reselection, just improve the reselection conditions from community C1 gravity treatment to other communities, and start corresponding TR1 when identifying between the pattern of community C1.Concrete identifying can, with reference to the embodiment of the present invention one, repeat no more.

Step S34: be greater than the 3rd Preset Time if the running time of the 3rd timer corresponding to community is initiated in described gravity treatment, reduce described communication terminal and initiate by described gravity treatment the reselection conditions that cell reselection is required to meet to other communities.Wherein said the 3rd Preset Time carries out the consuming time of cell reselection based on described communication terminal to be determined, general span is 30 to 180 seconds, and concrete value can be determined according to the aggregation of data of on-the-spot test.Such as in the time that MODE2 is WCDMA, the 3rd Preset Time can be set as 70 seconds.Described reselection conditions comprises that gravity treatment initiates community and carry out the desired cell signal strength/quality gate of cell reselection limit value to other communities, and communication terminal resides in the time gate limit value of measuring the cell signal strength/quality requirement of other communities when gravity treatment is initiated in community.If in other embodiments, in step S33, only improve in two reselection conditions, corresponding this reselection conditions of also reduction.Concrete, can progressively reduce described reselection conditions according to the increase of the 3rd timer operation expired times, until reselection conditions returns to and initiate the irrelevant initial condition of ping-pong reselection between the pattern of access module from gravity treatment; Also can disposable reselection conditions be reduced to and initiate the irrelevant initial condition of ping-pong reselection between the pattern of access module from gravity treatment.Wherein, out of service and restart when described the 3rd timer is greater than the 3rd corresponding Preset Time running time, described expired times refer to that the 3rd timer exceedes the number of times of the 3rd Preset Time running time.When selecting while progressively reducing, reduce stepping and can be set to, with to improve stepping the same, also can be less than raising stepping, such as the reduction stepping of the time gate limit value of cell signal strength/quality gate limit value of described requirement and requirement is set to respectively to 3dB and 3s.

In addition, may repeat to occur from ping-pong reselection between the pattern of gravity treatment initiation community, ping-pong reselection when between the pattern again occurring is to initiate the 3rd timer run duration corresponding to community in gravity treatment, need to restart corresponding the 3rd timer, recover to restart timing after the 3rd timer reset condition.

To sum up, the method that between the pattern of the communication terminal that the present embodiment provides, ping-pong reselection prevents, because the quantity of setting and the probability of startup timer operation of timer have a considerable amount of minimizings, can save system resource for communication terminal, raising communication terminal prevents the efficiency of ping-pong reselection between pattern.

Further, within a period of time, again do not occur to initiate between the pattern of community ping-pong reselection from gravity treatment, can progressively described reselection conditions be reduced until recover original value, or once gravity treatment thresholding is reduced to original value, avoid being like this raised to too strict degree in reselection conditions described in normal use procedure, and communication terminal in the time of the network environment less stable of current area cannot be switched in other operable communities, further perfect communication terminal prevents the strategy of ping-pong reselection between pattern.

Embodiment tetra-

As shown in Figure 5, be the structural representation of the device of ping-pong reselection identification between the pattern of the communication terminal of the embodiment of the present invention four, comprising:

Table record unit, re-selecting cell 401, the first timer group 402, ping-pong reselection recognition unit 403 and re-selecting cell table updating block 404.Wherein re-selecting cell table record unit 401 is for recording the re-selecting cell table of described communication terminal, and described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2.The first timer group 402, comprises corresponding the first timer in each community in the table of described re-selecting cell, and described the first timer is for carrying out gravity treatment timing to Biao Zhongge community, re-selecting cell; If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community.Ping-pong reselection recognition unit 403, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.Described ping-pong reselection is known unit 403 and is comprised the first judging unit and the second judging unit, and wherein said the first judging unit is used for judging described the first timer run duration, and whether again the gravity treatment of described communication terminal goes back to described gravity treatment initiation community; Described the second judging unit is for judging whether described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern.Wherein, described the second judging unit comprises: mode sequences memory cell, form mode sequences for storing the access module of supporting with described communication terminal, and described mode sequences has relative first direction and second direction; The second timer group, comprises the second timer corresponding to the each access module last a kind of access module on described first direction, for the each access module last a kind of access module on described first direction is carried out to gravity treatment timing; Carry out cell reselection if described communication terminal is initiated access module by gravity treatment to the arbitrary access module on described first direction, start described gravity treatment and initiate the second timer corresponding to access module; The second judgment sub-unit, for the run duration at described the second timer, after the cell reselection success that described communication terminal is carried out to the described gravity treatment initiation access module in described second direction by arbitrary access module, there is cell reselection between pattern in judgement.Re-selecting cell table updating block 404, if complete after any cell reselection for described communication terminal, resident community does not belong to described re-selecting cell table, described resident community is increased in the table of described re-selecting cell, and the first corresponding timer is set; Also for deleting from described re-selecting cell table being greater than the first timer of the first Preset Time and corresponding community thereof running time.

In other embodiments, also can not comprise re-selecting cell table updating block 404.The concrete enforcement of the present embodiment can, with reference to the embodiment of the present invention one, repeat no more herein.

Embodiment five

The structural representation that is illustrated in figure 6 the device that between the pattern of communication terminal of the embodiment of the present invention five, ping-pong reselection prevents, comprising:

Table record unit, re-selecting cell 501, the first timer group 502, ping-pong reselection recognition unit 503 and the anti-stop element 504 of ping-pong reselection.Wherein, table record unit, re-selecting cell 501 is for recording the re-selecting cell table of described communication terminal, and described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2.The first timer group 502, comprises corresponding the first timer in each community in the table of described re-selecting cell, and described the first timer is for carrying out gravity treatment timing to Biao Zhongge community, re-selecting cell; If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community.Ping-pong reselection recognition unit 503, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.The anti-stop element 504 of ping-pong reselection, for identifying between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improve described communication terminal and initiate community by described gravity treatment and carry out to other communities the reselection conditions that cell reselection is required to meet.

In other embodiments, the device that between the pattern of described communication terminal, ping-pong reselection prevents can also comprise: recover table record unit, re-selecting cell, the 3rd timer group and reduce reselection conditions unit, for recover reselection conditions in the time that a period of time cell reselection does not occur.Concrete, table record unit, described recovery re-selecting cell is for recording the recovery re-selecting cell table of described communication terminal, described recovery re-selecting cell table comprises maximum M and recovers re-selecting cell, wherein M=2K, described recovery re-selecting cell refers to the community that between described pattern, after ping-pong reselection, reselection conditions is enhanced occurs; Described the 3rd timer group, wherein comprises and recovers the 3rd timer corresponding to Biao Zhongge community, re-selecting cell, the timing of described the 3rd timer for recovering reselection conditions; Identify after the ping-pong reselection that described communication terminal occurred to be initiated to set out community by described gravity treatment at ping-pong reselection recognition unit, start described gravity treatment and initiate the 3rd timer corresponding to community; Reduce reselection conditions unit, if for being greater than the 3rd Preset Time the running time of the 3rd timer corresponding to described gravity treatment initiation community, reduce described communication terminal and initiate by described gravity treatment the reselection conditions that cell reselection is required to meet to other communities, described the 3rd Preset Time carries out the consuming time of cell reselection based on described communication terminal and determines.

The concrete enforcement of the embodiment of the present invention can, with reference to the embodiment of the present invention three, four, repeat no more herein.

It will be appreciated by those skilled in the art that, realizing all or part of of technique scheme is can carry out the hardware that instruction is relevant by program to complete, 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

1. between the pattern of communication terminal, ping-pong reselection is known a method for distinguishing, it is characterized in that, comprising:

2. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, the crash time that the value of K completes cell reselection institute length consuming time and identification ping-pong reselection based on communication terminal is definite.

3. between the pattern of communication terminal as claimed in claim 2, ping-pong reselection is known method for distinguishing, it is characterized in that K=23.

4. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, also comprises:

5. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, if when the number of the community that the completed cell reselection of described communication terminal is corresponding is greater than K, K the community that record finally completes cell reselection in the table of described re-selecting cell.

6. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, also comprises:

7. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, also comprises:

8. between the pattern of communication terminal as claimed in claim 7, ping-pong reselection is known method for distinguishing, it is characterized in that, the default priority level of the access module under the community of described the first Preset Time based on corresponding is determined.

9. between the pattern of communication terminal as claimed in claim 8, ping-pong reselection is known method for distinguishing, it is characterized in that, the span of described the first Preset Time is 30～180 seconds.

10. between the pattern of communication terminal as claimed in claim 1, ping-pong reselection is known method for distinguishing, it is characterized in that, describedly initiates the cell reselection process that sets out of community by gravity treatment and comprises at least one times the determining step of cell reselection between pattern and comprise:

Between the pattern of 11. communication terminals as claimed in claim 10, ping-pong reselection is known method for distinguishing, it is characterized in that, access module in described mode sequences is by each self-corresponding default prioritization, and described first direction is described pre-setting priority Sort Direction from high to low.

Between the pattern of 12. communication terminals as claimed in claim 10, ping-pong reselection is known method for distinguishing, it is characterized in that, also comprises:

Between the pattern of 13. communication terminals as claimed in claim 10, ping-pong reselection is known method for distinguishing, it is characterized in that, also comprise: described the second timer that is greater than the second corresponding Preset Time running time is stopped, and described the second Preset Time carries out the consuming time of cell reselection and determines between corresponding access module and other access modules based on described communication terminal.

Between the pattern of 14. communication terminals as claimed in claim 13, ping-pong reselection is known method for distinguishing, it is characterized in that, the span of described the second Preset Time is 30～180 seconds.

The method that between the pattern of 15. 1 kinds of communication terminals, ping-pong reselection prevents, is characterized in that, comprising:

Know method for distinguishing with ping-pong reselection between the pattern described in claim 1 to 14 and identify between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improve described communication terminal and initiate community by described gravity treatment and carry out to other communities the reselection conditions that cell reselection is required to meet.

The method that between the pattern of 16. communication terminals as claimed in claim 15, ping-pong reselection prevents, is characterized in that, described reselection conditions at least comprises following any one:

The method that between the pattern of 17. communication terminals as claimed in claim 15, ping-pong reselection prevents, is characterized in that, also comprises:

The method that between the pattern of 18. communication terminals as claimed in claim 17, ping-pong reselection prevents, it is characterized in that, reduce described communication terminal and comprised by described gravity treatment initiation cell reselection to the reselection conditions that other communities are required to meet: current reselection conditions is directly reduced to and identifies the original reselection conditions setting before ping-pong reselection between described pattern.

The method that between the pattern of 19. communication terminals as claimed in claim 17, ping-pong reselection prevents, it is characterized in that, the described communication terminal of described reduction is initiated cell reselection to the reselection conditions that other communities are required to meet by described gravity treatment and is comprised: progressively reduce described reselection conditions with described the 3rd timer operation expired times increase, until return to described original reselection conditions, it is out of service and restart when wherein said the 3rd timer is greater than the 3rd corresponding Preset Time running time, described expired times refer to that described the 3rd timer is greater than the number of times of described the 3rd Preset Time.

The method that between the pattern of 20. communication terminals as claimed in claim 17, ping-pong reselection prevents, it is characterized in that, also comprise: be the run duration at described the 3rd timer if identify ping-pong reselection between the pattern of being initiated to set out community by described gravity treatment, restart described the 3rd timer.

The method that between the pattern of 21. communication terminals as claimed in claim 17, ping-pong reselection prevents, is characterized in that, the span of described the 3rd Preset Time is 30～180 seconds.

Between the pattern of 22. 1 kinds of communication terminals, the device of ping-pong reselection identification, is characterized in that, comprising:

Table record unit, re-selecting cell, for recording the re-selecting cell table of described communication terminal, described re-selecting cell table comprises a community with the corresponding maximum K of the completed cell reselection of described communication terminal, and wherein K is greater than or equal to 2;

The first timer group, comprises corresponding the first timer in each community in the table of described re-selecting cell, and described the first timer is for carrying out gravity treatment timing to Biao Zhongge community, re-selecting cell; If the resident gravity treatment of described communication terminal, while initiating community, cell reselection occurs, start described gravity treatment and initiate the first timer corresponding to community;

Ping-pong reselection recognition unit, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment.

Between the pattern of 23. communication terminals as claimed in claim 22, the device of ping-pong reselection identification, is characterized in that, also comprises:

Re-selecting cell table updating block, if complete after any cell reselection for described communication terminal, resident community does not belong to described re-selecting cell table, described resident community is increased in the table of described re-selecting cell, and the first corresponding timer is set;

Also for deleting from described re-selecting cell table being greater than the first timer of the first Preset Time and corresponding community thereof running time.

Between the pattern of 24. communication terminals as claimed in claim 22, the device of ping-pong reselection identification, is characterized in that, described in identifying, between the pattern of gravity treatment initiation community, ping-pong reselection, stops described gravity treatment and initiates the first timer corresponding to community.

Between the pattern of 25. communication terminals as claimed in claim 22, the device of ping-pong reselection identification, is characterized in that, described ping-pong reselection is known unit and comprised the first judging unit and the second judging unit, wherein

Described the first judging unit is used for judging described the first timer run duration, and whether again the gravity treatment of described communication terminal goes back to described gravity treatment initiation community;

Described the second judging unit is for judging whether described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern, and described the second judging unit comprises:

Mode sequences memory cell, forms mode sequences for storing the access module of supporting with described communication terminal, and described mode sequences has relative first direction and second direction;

The second timer group, comprises the second timer corresponding to the each access module last a kind of access module on described first direction, for the each access module last a kind of access module on described first direction is carried out to gravity treatment timing; Carry out cell reselection if described communication terminal is initiated access module by gravity treatment to the arbitrary access module on described first direction, start described gravity treatment and initiate the second timer corresponding to access module;

The second judgment sub-unit, for the run duration at described the second timer, after the cell reselection success that described communication terminal is carried out to the described gravity treatment initiation access module in described second direction by arbitrary access module, there is cell reselection between pattern in judgement.

The device of ping-pong reselection identification between the pattern of 26. communication terminals as claimed in claim 25, it is characterized in that, if described communication terminal is initiated access module corresponding to community while initiating to the described gravity treatment on described first direction cell reselection success that access module corresponding to community carry out to the cell reselection failure of the arbitrary access module on described first direction or by arbitrary access module by described gravity treatment, stop described gravity treatment and initiate the second timer corresponding to community.

The device of ping-pong reselection identification between the pattern of 27. communication terminals as claimed in claim 25, it is characterized in that, described the second timer that is greater than the second corresponding Preset Time running time is stopped, and described the second Preset Time carries out the consuming time of cell reselection and determines between corresponding access module and other access modules based on described communication terminal.

The device that between the pattern of 28. 1 kinds of communication terminals, ping-pong reselection prevents, is characterized in that, comprising:

Ping-pong reselection recognition unit, be used at described the first timer run duration, if described communication terminal again gravity treatment goes back to described gravity treatment initiation community, and described cell reselection process of being initiated to set out community by gravity treatment comprises cell reselection between pattern at least one times, the cell reselection process of initiating to set out community by described gravity treatment is identified as to ping-pong reselection between the pattern of being initiated to set out community by gravity treatment;

The anti-stop element of ping-pong reselection, for identifying between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection, improve described communication terminal and initiate community by described gravity treatment and carry out to other communities the reselection conditions that cell reselection is required to meet.

The device that between the pattern of 29. communication terminals as claimed in claim 28, ping-pong reselection prevents, is characterized in that, also comprises:

Recover table record unit, re-selecting cell, for recording the recovery re-selecting cell table of described communication terminal, described recovery re-selecting cell table comprises maximum M and recovers re-selecting cell, wherein M=2K, and described recovery re-selecting cell refers to the community that between described pattern, after ping-pong reselection, reselection conditions is enhanced occurs;

The 3rd timer group, wherein comprises and recovers the 3rd timer corresponding to Biao Zhongge community, re-selecting cell, the timing of described the 3rd timer for recovering reselection conditions; Identify between the pattern that described communication terminal occurred to be initiated to set out community by described gravity treatment after ping-pong reselection at ping-pong reselection recognition unit, start described gravity treatment and initiate the 3rd timer corresponding to community;

Reduce reselection conditions unit, if for being greater than the 3rd Preset Time the running time of the 3rd timer corresponding to described gravity treatment initiation community, reduce described communication terminal and initiate by described gravity treatment the reselection conditions that cell reselection is required to meet to other communities, described the 3rd Preset Time carries out the consuming time of cell reselection based on described communication terminal and determines.

The device that between the pattern of 30. communication terminals as claimed in claim 29, ping-pong reselection prevents, it is characterized in that, if ping-pong reselection recognition unit identifies ping-pong reselection between the pattern of being initiated to set out community by described gravity treatment at the run duration of described the 3rd timer, restart described the 3rd timer.