CN104365132B

CN104365132B - A kind of cell accessing method, device and system

Info

Publication number: CN104365132B
Application number: CN201380001833.3A
Authority: CN
Inventors: 马慧; 陈卓; 高永强; 陈玉华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-05-07
Filing date: 2013-05-07
Publication date: 2018-05-18
Anticipated expiration: 2033-05-07
Also published as: CN104365132A; WO2014179934A1

Abstract

A kind of cell accessing method, including：When user terminal is in Idle state, detect the signal quality of the current persistent district of user terminal, measured value is obtained, determines whether the measured value is more than preset measurement threshold value, wherein, the measurement threshold value measures threshold parameter less than Idle state, if more than preset measurement threshold value, then continue to reside in the current persistent district, before needing to initiate random access, cell reselection is carried out to determine new persistent district, and random access procedure is initiated to the new persistent district；If less than or equal to preset measurement threshold value, cell reselection is carried out to determine new persistent district.In addition, also provide corresponding cell access device, communication system and user terminal.

Description

A kind of cell accessing method, device and system

Technical field

The present invention relates to fields of communication technology, and in particular to a kind of cell accessing method, device and system.

Background technology

With the development of the communication technology, the function of user terminal is also more and more diversified, and these also cause user terminal Power consumption further improve, accordingly, it is desirable to often replace battery or charging etc. to ensure that it is enough that user terminal has Electricity, so, how to reduce the power consumption of user terminal, make it have longer stand-by time, with reduce change battery etc. The number of power supply unit becomes the problem of people's growing interest.

In the prior art, in order to ensure that user terminal has better signal, in the free time（Idle）The user of state is whole End, which is generally required, measures each cell according to cell reselection criterion, to obtain the cell that can support the user's terminal, If it find that there is better cell, then the better cell is selected as persistent district.When user terminal has business to need to handle When, random access procedure will be initiated and access the persistent district, i.e., become connected state from Idle state.Due to measurement be Idle state most One of behavior of power consumption, therefore, in order to reduce the power consumption of user terminal, the prior art proposes the side for reducing pendulous frequency Case, i.e.,：The normal Idle state of a ratio is set for it and measures the relatively low measurement threshold parameter of threshold parameter, is known as new measurement threshold value Parameter（New S_intrasearch）, when the signal quality of user terminal（SServingCell）Less than the new measurement threshold parameter When, user terminal can just start measurement.

In the research and practice process to the prior art, it was found by the inventors of the present invention that due to reducing user terminal In the measurement threshold parameter of Idle state, therefore user terminal can correspondingly reduce measurement, it is possible that can cause user terminal not It can ultimately result in user terminal in time by measuring discovery more suitably cell and carrying out cell reselection and reside in one always In inappropriate cell, network quality is poor, for example may cause to need stronger letter when random access failure or random access The problems such as number thus more switching at once since signal quality is excessively poor after power consumption or random access cell.

The content of the invention

The embodiment of the present invention provides a kind of cell accessing method, device and system, can reduce the power of user terminal On the premise of consumption so that user terminal carries out cell reselection in time, to improve network quality.

In a first aspect, the embodiment of the present invention provides a kind of cell accessing method, including：

When user terminal is in Idle state, the signal quality of the current persistent district of detection user terminal obtains measured value；

Determine whether the measured value is more than preset measurement threshold value, the measurement threshold value is less than Idle state measurement threshold value ginseng Number；

If so, continue to reside in the current persistent district, before needing to initiate random access, carry out cell reselection with It determines new persistent district, and random access procedure is initiated to the new persistent district；

If it is not, cell reselection is then carried out to determine new persistent district.

It is with reference to first aspect, described before needing to initiate random access in the first possible embodiment, it carries out small Area's gravity treatment can be included with determining new persistent district：

Before needing to initiate random access, the signal quality of adjacent cell is measured；

According to the top-quality adjacent cell of result selection signal of measurement as new persistent district.

In second of possible embodiment, the first possible embodiment with reference to first aspect is described to neighbour The signal quality of cell measures, and can include：

The adjacent cell collection broadcasted in current persistent district broadcast message is obtained, the letter of all cells is concentrated to the adjacent cell Number quality measures；Alternatively,

Cell list of the configuration in the user terminal is obtained, to the signal quality of all cells in the cell list It measures；Alternatively,

The signal quality of all cells that can be measured that is measured.

It is with reference to first aspect, described before needing to initiate random access in the third possible embodiment, it carries out small Area's gravity treatment can be included with determining new persistent district：

Before needing to initiate random access, according to cell reselection measuring criterion, threshold parameter is measured to neighbour using Idle state The signal quality of cell measures；

In the 4th kind of possible embodiment, the third possible embodiment with reference to first aspect, the basis Cell reselection measuring criterion measures the signal quality of adjacent cell using Idle state measurement threshold parameter, can include：

The adjacent cell collection broadcasted in current persistent district broadcast message is obtained, according to cell reselection measuring criterion, utilizes sky Not busy state measurement threshold parameter concentrates the signal quality of all cells to measure the adjacent cell；Alternatively,

Cell list of the configuration in the user terminal is obtained, according to cell reselection measuring criterion, is surveyed using Idle state Amount threshold parameter measures the signal quality of all cells in the cell list；Alternatively,

According to cell reselection measuring criterion, letter of the threshold parameter to all cells that can be measured that is measured using Idle state Number quality measures.

In the 5th kind of possible embodiment, first to fourth any possible embodiment with reference to first aspect, Before the top-quality adjacent cell of result selection signal according to measurement is as new persistent district, it can also include：

Determine the machine type communication needed for user terminal（MTC, Machine Type Communications）Characteristic；

Obtain the machine type communication characteristic information that adjacent cell is supported；

Machine according to needed for the machine type communication characteristic information that adjacent cell is supported is determined to support user terminal The adjacent cell of type communication characteristic, adjacent cell collection after being screened；

The top-quality adjacent cell of selection signal is specially as new persistent district：According to the result of measurement from described Adjacent cell concentrates the top-quality adjacent cell of selection signal as new persistent district after screening.

In the 6th kind of possible embodiment, the 5th kind of possible embodiment with reference to first aspect, the acquisition The machine type communication characteristic information that adjacent cell is supported, can include：

The broadcast message of adjacent cell is received, the machine that adjacent cell is supported is carried in the system information block of the broadcast message Type communication characteristic information.

Second aspect, the embodiment of the present invention also provide a kind of cell access device, including detection unit, judging unit, One processing unit and second processing unit；

Detection unit, for when user terminal is in Idle state, detecting the signal matter of the current persistent district of user terminal Amount, obtains measured value；

Judging unit, for determining whether the measured value is more than preset measurement threshold value, the measurement threshold value is less than sky Not busy state measures threshold parameter；

First processing units, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to stay The current persistent district is stayed in, before needing to initiate random access, carries out cell reselection to determine new persistent district, and to institute It states new persistent district and initiates random access procedure；

Second processing unit, for judging unit determine the measured value be less than or equal to preset measurement threshold value when, into Row cell reselection is with definite new persistent district.

The first mode that may implement, with reference to first aspect, the first processing units can include the first measurement Unit and first choice subelement；

First measurement subelement, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing The current persistent district is resided in, before needing to initiate random access, the signal quality of adjacent cell is measured；

First choice subelement is small for the top-quality neighbour of result selection signal according to the first measurement subelement measurement Area is as new persistent district.

Second of mode that may implement, the first possible embodiment with reference to first aspect, first measurement Subelement specifically can be used for, when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in institute Current persistent district is stated, before needing to initiate random access, obtains the adjacent cell collection broadcasted in current persistent district broadcast message, The signal quality for concentrating all cells to the adjacent cell measures.

The third mode that may implement, the first possible embodiment with reference to first aspect, first measurement Subelement specifically can be used for, when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in institute Current persistent district is stated, before needing to initiate random access, cell list of the configuration in the user terminal is obtained, to described The signal quality of all cells measures in cell list.

The 4th kind of mode that may implement, the first possible embodiment with reference to first aspect, first measurement Subelement specifically can be used for, when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in institute Current persistent district is stated, before needing to initiate random access, the signal quality of all cells that can be measured that is measured.

The 5th kind of mode that may implement, the second to four any possible embodiment with reference to first aspect are described First processing units further include the first screening subelement；

First screening subelement, for determining the machine type communication characteristic needed for user terminal and obtaining adjacent cell The machine type communication characteristic information supported；The machine type communication characteristic information supported according to adjacent cell is determined to prop up The adjacent cell of the machine type communication characteristic needed for user terminal is held, adjacent cell collection after being screened；

The first choice subelement, it is adjacent after the screening specifically for the result according to the first measurement subelement measurement The top-quality adjacent cell of selection signal is as new persistent district in cell set.

The 6th kind of mode that may implement, with reference to first aspect, the first processing units can include the second measurement Unit and the second selection subelement；

Second measurement subelement, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing The current persistent district is resided in, before needing to initiate random access, according to cell reselection measuring criterion, is surveyed using Idle state Amount threshold parameter measures the signal quality of adjacent cell；

Second selection subelement is small for the top-quality neighbour of result selection signal according to the second measurement subelement measurement Area is as new persistent district.

The 7th kind of mode that may implement, the 6th kind of possible embodiment with reference to first aspect, second measurement Subelement described is currently stayed for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in Cell is stayed, before needing to initiate random access, the adjacent cell collection broadcasted in current persistent district broadcast message is obtained, according to cell Gravity treatment measuring criterion measures threshold parameter using Idle state and the signal quality of all cells is concentrated to survey the adjacent cell Amount.

The 8th kind of mode that may implement, the 6th kind of possible embodiment with reference to first aspect, second measurement Subelement described is currently stayed for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in Cell is stayed, before needing to initiate random access, cell list of the configuration in the user terminal is obtained, is surveyed according to cell reselection Criterion is measured, the signal quality of all cells in the cell list is measured using Idle state measurement threshold parameter.

The 9th kind of mode that may implement, the 6th kind of possible embodiment with reference to first aspect, second measurement Subelement described is currently stayed for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in Cell is stayed, before needing to initiate random access, according to cell reselection measuring criterion, threshold parameter is measured to all using Idle state The signal quality for the cell that can be measured that measures.

The tenth kind of mode that may implement, the seven to nine kind of possible embodiment with reference to first aspect, described first Processing unit further includes the second screening subelement；

Second screening subelement, for determining the machine type communication characteristic needed for user terminal and obtaining adjacent cell The machine type communication characteristic information supported；The machine type communication characteristic information supported according to adjacent cell is determined to prop up The adjacent cell of the machine type communication characteristic needed for user terminal is held, adjacent cell collection after being screened；

The second selection subelement, it is adjacent after the screening specifically for the result according to the second measurement subelement measurement The top-quality adjacent cell of selection signal is as new persistent district in cell set.

The third aspect, the embodiment of the present invention also provide a kind of communication system, including any one of provided in an embodiment of the present invention Cell access device.

Fourth aspect, the embodiment of the present invention also provide a kind of user terminal, the storage including processor, for storing data Device and the Transmit-Receive Unit for transceiving data；

Wherein, the processor, for when user terminal is in Idle state, detecting the current persistent district of user terminal Signal quality obtains measured value；Determine whether the measured value is more than preset measurement threshold value, the measurement threshold value is less than the free time State measures threshold parameter；If so, continuing to reside in the current persistent district, before needing to initiate random access, carry out small Area's gravity treatment initiates random access procedure to determine new persistent district to the new persistent district；If it is not, then carry out cell reselection To determine new persistent district.

The first possible embodiment, with reference to fourth aspect, the processor specifically can be used at user terminal When Idle state, the signal quality of the current persistent district of detection user terminal obtains measured value；Determine whether the measured value is big In preset measurement threshold value, the measurement threshold value measures threshold parameter less than Idle state；If so, continue to reside in described current Persistent district before needing to initiate random access, measures the signal quality of adjacent cell, selects to believe according to the result of measurement Number top-quality adjacent cell initiates random access procedure as new persistent district, and to the new persistent district；If it is not, then into Row cell reselection is with definite new persistent district.

Second of possible embodiment, with reference to fourth aspect, the processor specifically can be used at user terminal When Idle state, the signal quality of the current persistent district of detection user terminal obtains measured value；Determine whether the measured value is big In preset measurement threshold value, the measurement threshold value measures threshold parameter less than Idle state；If so, continue to reside in described current Before needing to initiate random access, according to cell reselection measuring criterion, threshold parameter is measured to neighbour using Idle state for persistent district The signal quality of cell measures, according to the top-quality adjacent cell of result selection signal of measurement as new persistent district, And random access procedure is initiated to the new persistent district；If it is not, cell reselection is then carried out to determine new persistent district.

The embodiment of the present invention is used when user terminal is in Idle state, the signal of the current persistent district of detection user terminal Quality obtains measured value, determines whether the measured value is more than preset measurement threshold value, wherein, which is less than Idle state Threshold parameter is measured, if more than preset measurement threshold value, then continues to be resident and flow in current persistent district, is needing to initiate to connect at random Before entering, cell reselection is carried out to determine new persistent district, and random access procedure is initiated to the new persistent district；If it is less than or equal to Preset measurement threshold value then carries out cell reselection to determine new persistent district.Threshold value is measured used by due to the program to be less than Idle state measures threshold parameter, therefore can reduce pendulous frequency, achievees the purpose that economize on electricity, at the same time, need to initiate with It before machine access, and can measure so as to gravity treatment to a suitable new persistent district, then the new persistent district is initiated Random access procedure, more suitably cell cannot be found by measuring in time when reducing pendulous frequency by avoiding, and cause user The problem of terminal may be always resided in inappropriate cell, that is to say, that user terminal can reduced using the program Power consumption on the premise of so that user terminal carries out cell reselection in time, to improve network quality.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.

Fig. 1 is the flow chart of cell accessing method provided in an embodiment of the present invention；

Fig. 2 is another flow chart of cell accessing method provided in an embodiment of the present invention；

Fig. 3 is the another flow chart of cell accessing method provided in an embodiment of the present invention；

Fig. 4 is another flow chart of cell accessing method provided in an embodiment of the present invention；

Fig. 5 is the structure diagram of cell access device provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without creative efforts Example, belongs to the scope of protection of the invention.

The embodiment of the present invention provides a kind of cell accessing method, device and system.It is described in detail individually below.

Embodiment one,

The embodiment of the present invention will be described from the angle of cell access device, which is specifically as follows use Family terminal, the user's terminal are specifically as follows the equipment such as tablet computer, mobile phone or laptop.

A kind of cell accessing method, including：When user terminal is in Idle state, the current persistent district of user terminal is detected Signal quality, obtain measured value；It is preset to determine whether the measured value is more than（Or configuration）Measurement threshold value, wherein, the measurement Threshold value is less than conventional Idle state measurement threshold parameter（Idle state measurement threshold parameter is referred to as in embodiments of the present invention）；If It is then to continue to reside in the current persistent district, before needing to initiate random access, it is new resident to determine to carry out cell reselection Cell, and random access procedure is initiated to the new persistent district；If it is not, cell reselection is then carried out to determine new persistent district.

As shown in Figure 1, idiographic flow can be as follows：

101st, when user terminal is in Idle state, the signal quality of the current persistent district of detection user terminal is surveyed Magnitude.

For example, with Long Term Evolution（LTE, Long Term Evolution）Exemplified by network, then the measured value can be denoted as： SServingCell, i.e., at this point, can specifically detect the value of the SServingCell parameters of the current persistent district of user terminal.

102nd, determine whether the measured value is more than preset measurement threshold value, if so, continuing to reside in described current resident Cell, and step 103 is performed, if it is not, then performing step 104；

Wherein, which can be configured according to the demand of practical application, but be below conventional Idle state and survey Measure threshold parameter；For example, by taking LTE network as an example, which is specially " S_intrasearch " Parameter（Or other similar parameters, such as " S_nonintrasearch " parameter, similarly hereinafter）, then at this point it is possible to set " new a S_ Intrasearch " parameters make the value of " new S_intrasearch " parameter be less than the value of " S_intrasearch " parameter, so After obtaining measured value in a step 101 afterwards, determine whether the measured value is more than the value for being somebody's turn to do " new S_intrasearch " parameter, if More than the value of " new S_intrasearch " parameter, then step 103 is performed, if joining less than or equal to " new S_intrasearch " is somebody's turn to do Several values, then perform step 104.

103rd, before needing to initiate random access, cell reselection is carried out to determine new persistent district, and this is newly resident small Initiate random access procedure in area.

Wherein, when user determines to need to carry out business processing, random access will be initiated, here " need to initiate with Before machine access ", referring specifically to user terminal needs to initiate random access procedure from Idle state to enter before connected state.

Wherein, various ways specifically may be employed to carry out cell reselection, to determine new persistent district, for example, specifically may be used In a manner of use as follows any one：

（1）First way：

Before needing to initiate random access, the signal quality of adjacent cell is measured, selects to believe according to the result of measurement Number top-quality adjacent cell is as new persistent district.

For example, the result that can specifically measure is ranked up adjacent cell, for example, according to signal magnitude from big to small or from It is small to being ranked up greatly, then the adjacent cell of selection signal maximum is as new persistent district, etc..

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that, i.e. step is " right The signal quality of adjacent cell measures " can specifically it include：

The adjacent cell collection broadcasted in current persistent district broadcast message is obtained, the signal of all cells is concentrated to the adjacent cell Quality measures；Alternatively,

Obtain cell list of the configuration in the user terminal, to the signal qualities of all cells in the cell list into Row measurement；Alternatively,

The signal quality of all cells that can be measured that is measured.

（2）The second way：

Before needing to initiate random access, according to cell reselection measuring criterion, threshold parameter is measured using Idle state（Such as S_intrasearch or S_nonintrasearch）The signal quality of adjacent cell is measured, is selected according to the result of measurement The best adjacent cell of signal quality is selected as new persistent district.

For example, specifically can need initiate random access before, using the measured value detected in step 101, alternatively, The signal quality of the current persistent district of user terminal can be measured again, obtain measured value, then in the definite measurement When value is less than Idle state measurement threshold parameter, the signal quality of adjacent cell is measured using Idle state measurement threshold parameter.

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that, i.e. step " root According to cell reselection measuring criterion, the signal quality of adjacent cell is measured using Idle state measurement threshold parameter " it can include：

The adjacent cell collection broadcasted in current persistent district broadcast message is obtained, according to cell reselection measuring criterion（Determine When measured value is less than Idle state measurement threshold parameter）, measure threshold parameter using Idle state and all cells concentrated to the adjacent cell Signal quality measure；Alternatively,

Cell list of the configuration in the user terminal is obtained, according to cell reselection measuring criterion（Determine measured value When measuring threshold parameter less than Idle state）, signal of the threshold parameter to all cells in the cell list is measured using Idle state Quality measures；Alternatively,

According to cell reselection measuring criterion（When determining that measured value is less than Idle state measurement threshold parameter）, utilize Idle state Measurement threshold parameter measures the signal quality of all cells that can be measured that.

Wherein, it is accurate can to include common frequency measurement criterion, high priority alien frequencies or isosystem measurement for cell reselection measuring criterion It is as follows then with the alien frequencies or isosystem measurement of same priority：

（1）Common frequency measurement criterion：If SServingCell<=S_intrasearch, then user terminal is performed surveys with frequency Amount.

（2）High priority alien frequencies or isosystem measurement criterion：Directly initiate the alien frequencies of high priority and the measurement of different system.

（3）The alien frequencies or isosystem measurement of same priority：If SServingCell<=Snonintrasearch, then use Family terminal performs the alien frequencies or isosystem measurement of same priority.Wherein, " Snonintrasearch " is the measurement of triggering alien-frequency district Threshold value.

It should be noted that if user terminal needs specific machine type communication in itself（MTC, Machine Type Communications）Characteristic can then configure the cell list for supporting the special MTC characteristics in this user terminal, that , when the signal quality to adjacent cell measures, it is possible to and it is measured just for these satisfactory cells, so as to Signaling process can be reduced and improve measurement efficiency.

In addition, each cell can also broadcast the MTC characteristic informations that itself is supported, in this way, user terminal is just It is known which cell can support the MTC characteristics needed for itself, so as to only be measured to these satisfactory cells, Signaling process can be reduced and improve measurement efficiency.That is, in step " according to the result selection signal quality of measurement Best adjacent cell is as new persistent district " before, this method can also include：

It determines the MTC characteristics needed for user terminal and obtains the MTC characteristic informations that adjacent cell is supported；According to adjacent small The MTC information that area is supported is determined to support the adjacent cell of the MTC characteristics needed for user terminal, adjacent cell after being screened Collection.

Then at this point, step " the top-quality adjacent cell of selection signal is as new persistent district " is specifically as follows：

The top-quality adjacent cell of selection signal is concentrated as new resident from adjacent cell after the screening according to the result of measurement Cell.

Wherein it is possible to obtain the MTC characteristic informations that adjacent cell is supported in several ways, for example, pass through receive it is adjacent The broadcast message of cell actively sends request, etc. to adjacent cell, i.e. step " obtains the MTC characteristics that adjacent cell is supported Information " specifically can be as follows：

The broadcast message of adjacent cell is received, wherein, the machine that adjacent cell is supported is carried in the system information block of broadcast message Device type communication characteristic information.Or；

The request for obtaining MTC characteristic informations is sent to adjacent cell, receives the machine that the adjacent cell that adjacent cell returns is supported Type communication characteristic information.

104th, cell reselection is carried out to determine new persistent district.

（1）First way：

The signal quality of adjacent cell is measured, according to the top-quality adjacent cell conduct of the result selection signal of measurement New persistent district.

（2）The second way：

According to cell reselection measuring criterion, the signal quality of adjacent cell is surveyed using Idle state measurement threshold parameter Amount, according to the top-quality adjacent cell of result selection signal of measurement as new persistent district.

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that etc., herein no longer It repeats.

In addition, it should be noted that, whether have pair since the user terminal for being in Idle state needs regular monitoring network It is paged, and user terminal monitors paging and needs to consume the energy of itself（Electric energy）, therefore, from the point of view of power saving, The user terminal generally use discontinuous reception of Idle state（DRX, Discontinuous Reception）Mode is sought to receive Message is exhaled, the user terminal of Idle state is periodically in the activation period of DRX（On Duration）Paging message is monitored, is gone forward side by side Row measurement is to carry out cell reselection, and user terminal usually will not be in the sleep period of DRX（Off Duration）It measures. Therefore, if user terminal is configured with Idle state DRX, user terminal may not in time measure cell to carry out small Area's gravity treatment for this purpose, in the embodiment of the present invention, can configure user terminal and ignore when needing to measure before initiating random access DRX is configured, and is also measured at once even at the sleep period of DRX, and is carried out cell reselection.

From the foregoing, it will be observed that the present embodiment is used when user terminal is in Idle state, the current persistent district of user terminal is detected Signal quality, obtain measured value, determine the measured value whether be more than preset measurement threshold value, wherein, which is less than Idle state measure threshold parameter, if more than preset measurement threshold value, then continue to reside in current persistent district, need initiate with Before machine access, cell reselection is carried out to determine new persistent district, and random access procedure is initiated to the new persistent district；If it is less than Equal to preset measurement threshold value, then cell reselection is carried out to determine new persistent district.Threshold value is measured used by due to the program Threshold parameter is measured less than Idle state, therefore pendulous frequency can be reduced, achievees the purpose that economize on electricity, at the same time, is needing to send out Before playing random access, and it can measure so that gravity treatment is to a suitable new persistent district, then to the new persistent district Random access procedure is initiated, more suitably cell cannot be found by measuring in time when reducing pendulous frequency by avoiding, and be caused The problem of user terminal may be always resided in inappropriate cell, that is to say, that user can reduced using the program On the premise of the power consumption of terminal so that user terminal carries out cell reselection in time, to improve network quality.

According to one described method of embodiment, it will illustrate make further specifically in embodiment two, three and four below It is bright.

Embodiment two,

In the present embodiment, will be with LTE network, and the cell access device is specially to illustrate exemplified by user terminal.

As shown in Fig. 2, a kind of cell accessing method, idiographic flow can be as follows：

201st, when user terminal is in Idle state, user terminal detects the signal quality of current persistent district, is surveyed Magnitude, for example, can specifically detect the value of SServingCell parameters.

202nd, user terminal determines whether the measured value is more than preset measurement threshold value, if so, continuing to reside in current Persistent district, and step 203 is performed, if it is not, then performing step 204；

The measurement threshold value can be configured according to the demand of practical application, but be below Idle state measurement threshold parameter, It is specially " S_intrasearch " parameter with Idle state measurement threshold parameter, which is specially " new S_ Exemplified by intrasearch " parameters, then " new S_intrasearch<S_intrasearch ", then at this point, user terminal specifically may be used To determine whether the value of SServingCell parameters is more than the value of new S_intrasearch parameters, if more than new S_ The value of intrasearch parameters then continues to reside in current persistent district, and performs step 203, if less than or equal to new S_ The value of intrasearch parameters, then perform step 204.

203rd, user terminal is before needing to initiate random access（I.e. user terminal needs to initiate random access procedure with from sky Not busy state enters before connected state）, the signal quality of adjacent cell is measured, it is best in quality according to the result selection signal of measurement Adjacent cell as new persistent district.

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that, i.e., step is " to neighbour The signal quality of cell measures " can specifically it include：

Cell list of the configuration in the user terminal is obtained, for example obtains support of the configuration in the user terminal The cell list of special MTC characteristics measures the signal quality of all cells in the cell list；Alternatively,

The signal quality of all cells that can be measured that is measured.

204th, user terminal carries out cell reselection to determine new persistent district.

Wherein, various ways specifically may be employed to carry out cell reselection, to determine new persistent district, for details, reference can be made to reality Example one is applied, details are not described herein.

From the foregoing, it will be observed that the present embodiment is used when user terminal is in Idle state, the current persistent district of user terminal is detected Signal quality, obtain measured value, determine the measured value whether be more than preset measurement threshold value, wherein, which is less than Idle state measure threshold parameter, if more than preset measurement threshold value, then continue to reside in current persistent district, need initiate with Before machine access, the signal quality of adjacent cell is measured, is made according to the top-quality adjacent cell of the result selection signal of measurement For new persistent district, and random access procedure is initiated to the new persistent district；If less than or equal to preset measurement threshold value, carry out Cell reselection is with definite new persistent district.Threshold value is measured used by due to the program and measures threshold parameter less than Idle state, because This can reduce pendulous frequency, achieve the purpose that economize on electricity, at the same time, before needing to initiate random access, and can be surveyed Then amount is initiated random access procedure to the new persistent district, is avoided so as to gravity treatment to a suitable new persistent district More suitably cell cannot be found by measuring, cause user terminal that may reside in always and do not conform in time when reducing pendulous frequency The problem of in suitable cell, that is to say, that can be on the premise of the power consumption of user terminal is reduced using the program so that User terminal carries out cell reselection in time, to improve network quality.

Embodiment three,

Identical with implementing two, in the present embodiment, equally with LTE network, and the cell access device is specially to use It is illustrated exemplified by the terminal of family.From implementing unlike two, in the present embodiment, cell weight will be carried out in another way Choosing, to determine new persistent district.

As shown in figure 3, a kind of cell accessing method, idiographic flow can be as follows：

301st, when user terminal is in Idle state, user terminal detects the signal quality of current persistent district, is surveyed Magnitude, for example, can specifically detect the value of SServingCell parameters.

302nd, user terminal determines whether the measured value is more than preset measurement threshold value, if so, continuing to reside in current Persistent district, and step 303 is performed, if it is not, then performing step 304；

303rd, user terminal is before needing to initiate random access（I.e. user terminal needs to initiate random access procedure with from sky Not busy state enters before connected state）, according to cell reselection measuring criterion, signal of the threshold parameter to adjacent cell is measured using Idle state Quality measures, according to the top-quality adjacent cell of result selection signal of measurement as new persistent district.

Wherein, it is accurate can to include common frequency measurement criterion, high priority alien frequencies or isosystem measurement for cell reselection measuring criterion It, specifically can be as follows then with the alien frequencies or isosystem measurement of same priority：

304th, user terminal carries out cell reselection to determine new persistent district.

From the foregoing, it will be observed that the present embodiment is used when user terminal is in Idle state, the current persistent district of user terminal is detected Signal quality, obtain measured value, determine the measured value whether be more than preset measurement threshold value, wherein, which is less than Idle state measures threshold parameter, if more than preset measurement threshold value, then continues to be resident and flow in current persistent district, needing to initiate Before random access, according to cell reselection measuring criterion, measure threshold parameter using Idle state and the signal quality of adjacent cell is carried out Measurement according to the top-quality adjacent cell of result selection signal of measurement as new persistent district, and is sent out the new persistent district Play random access procedure；If less than or equal to preset measurement threshold value, cell reselection is carried out to determine new persistent district.Due to this Measurement threshold value measures threshold parameter less than Idle state used by scheme, therefore can reduce pendulous frequency, reaches the mesh of economize on electricity , at the same time, before needing to initiate random access, and it can measure so that gravity treatment is suitable newly resident small to one Then area initiates random access procedure to the new persistent district, measurement cannot be passed through in time when reducing pendulous frequency by avoiding It was found that more suitably cell, the problem of causing user terminal that may always reside in inappropriate cell, that is to say, that use The program can be on the premise of the power consumption of user terminal be reduced so that and user terminal carries out cell reselection in time, with It improves network quality.

Example IV,

On the basis of implementing two and three, further, to reduce signaling process and improving measurement efficiency, Ge Ge little Area can also broadcast the MTC characteristic informations that itself is supported, in this way, user terminal is it is known which cell can be with The MTC characteristics needed for itself are supported, so as to only be measured to these satisfactory cells.Below will equally with LTE network, And the cell access device is specially to be described in detail exemplified by user terminal.

As shown in figure 4, a kind of cell accessing method, idiographic flow can be as follows：

401st, when user terminal is in Idle state, user terminal detects the signal quality of current persistent district, is surveyed Magnitude, for example, can specifically detect the value of SServingCell parameters.

402nd, user terminal determines whether the measured value is more than preset measurement threshold value, is working as if so, continuing resident stream Preceding persistent district, and step 403 is performed, if it is not, then performing step 407；

The measurement threshold value can be configured according to the demand of practical application, but be below Idle state measurement threshold parameter, It is specially " S_intrasearch " parameter with Idle state measurement threshold parameter, which is specially " new S_ Exemplified by intrasearch " parameters, then " new S_intrasearch<S_intrasearch ", then at this point, user terminal specifically may be used To determine whether the value of SServingCell parameters is more than the value of new S_intrasearch parameters, if more than new S_ The value of intrasearch parameters then continues to reside in current persistent district, and performs step 403, if less than or equal to new S_ The value of intrasearch parameters, then perform step 407.

403rd, user terminal is before needing to initiate random access（I.e. user terminal needs to initiate random access procedure with from sky Not busy state enters before connected state）, the signal quality of adjacent cell is measured, alternatively, according to cell reselection measuring criterion, is utilized Idle state measures threshold parameter（Such as S_intrasearch）The signal quality of adjacent cell is measured, then performs step 404。

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that, for details, reference can be made to The embodiment of front, details are not described herein.

404th, user terminal determines MTC characteristics needed for user terminal and obtains the MTC characteristics that adjacent cell is supported Information, than such as whether supporting long DRX configuration, whether supporting economize on electricity optimization function etc..

Wherein, MTC characteristics instruction can be added in existing system information block（SIB, System Information Block）In, a new SIB can also be used.For example, an instruction can be increased in SIB, such as " MTC Functionality ", specifically can be as follows：

Wherein it is possible to obtain the MTC characteristic informations that adjacent cell is supported in several ways, for example, pass through receive it is adjacent The broadcast message of cell actively sends request, etc. to adjacent cell, refers to preceding embodiment, details are not described herein.

405th, MTC of the user terminal according to needed for the MTC information that adjacent cell is supported is determined to support user terminal is special The adjacent cell of property, adjacent cell collection after being screened.

406th, selection signal matter is concentrated from adjacent cell after the screening that step 405 obtains according to the result measured in step 403 Best adjacent cell is measured as new persistent district.

407th, user terminal carries out cell reselection to determine new persistent district.

From the foregoing, it will be observed that the present embodiment is used when user terminal is in Idle state, the current persistent district of user terminal is detected Signal quality, obtain measured value, determine the measured value whether be more than preset measurement threshold value, wherein, which is less than Idle state measures threshold parameter, if more than preset measurement threshold value, then continues to be resident and flow in current persistent district, needing to initiate Before random access, cell reselection is carried out to determine new persistent district, and random access procedure is initiated to the new persistent district；It is if small In equal to preset measurement threshold value, then cell reselection is carried out to determine new persistent district.Threshold is measured used by due to the program Value measures threshold parameter less than Idle state, therefore can reduce pendulous frequency, achievees the purpose that economize on electricity, at the same time, is needing It before initiating random access, and can measure so as to gravity treatment to a suitable new persistent district, then this is newly resident small Area initiates random access procedure, and more suitably cell cannot be found by measuring in time when reducing pendulous frequency by avoiding, and be led The problem of causing user terminal that may always reside in inappropriate cell, that is to say, that can be used using the program reducing On the premise of the power consumption of family terminal so that user terminal carries out cell reselection in time, to improve network quality.

Further, since the program can obtain the MTC characteristics letter that each cell can be supported before persistent district is selected Therefore breath, only can measure satisfactory cell according to self-demand, so as to reduce signaling process, improve Measurement efficiency.

Embodiment five,

In order to preferably implement above method, the embodiment of the present invention also provides a kind of cell access device, single including detection Member 501, judging unit 502, first processing units 503 and second processing unit 504；

Detection unit 501, for when user terminal is in Idle state, detecting the signal of the current persistent district of user terminal Quality obtains measured value；

For example, with Long Term Evolution（LTE, LongTermEvolution）Exemplified by network, then the measured value can be denoted as： SServingCell, i.e., at this point, can specifically detect the value of the SServingCell parameters of the current persistent district of user terminal.

Judging unit 502, for determining whether the measured value that detection unit 501 obtains is more than preset measurement threshold value, In, which measures threshold parameter less than Idle state；

First processing units 503, for judging unit 502 determine the measured value be more than preset measurement threshold value when, after Continuous be resident is flowed in current persistent district, before needing to initiate random access, carries out cell reselection to determine new persistent district, and right Initiate random access procedure in the new persistent district；

Second processing unit 504, for determining that the measured value is less than or equal to preset measurement threshold value in judging unit 502 When, cell reselection is carried out to determine new persistent district.

（1）First way：

First processing units 503 can include the first measurement subelement and first choice subelement；

First measurement subelement, for judging unit 502 determine the measured value be more than preset measurement threshold value when, after Continuous be resident is flowed in current persistent district, and before needing to initiate random access, the signal quality of adjacent cell is measured；

Wherein, adjacent cell can be the cell that the adjacent cell broadcasted in current persistent district broadcast message is concentrated, can also The cell being disposed in the cell list in user terminal can also be all cells that can be measured that, i.e.,：

First measurement subelement specifically can be used for determining that the measured value is more than preset measurement threshold in judging unit 502 During value, continue to be resident and flow in current persistent district, before needing to initiate random access, obtain in current persistent district broadcast message The adjacent cell collection of broadcast, the signal quality for concentrating all cells to the adjacent cell measure.Alternatively,

First measurement subelement specifically can be used for determining that the measured value is more than preset measurement threshold in judging unit 502 During value, continue to be resident and flow in current persistent district, before needing to initiate random access, obtain configuration in the user terminal Cell list measures the signal quality of all cells in the cell list.Alternatively,

First measurement subelement specifically can be used for determining that the measured value is more than preset measurement in judging unit 502 During threshold value, continue to be resident and flow in current persistent district, before needing to initiate random access, to all cells that can be measured that Signal quality measures.

Optionally, each cell can also broadcast the MTC characteristic informations that itself is supported, in this way, user terminal It is known which cell can support the MTC characteristics needed for itself, so as to only be surveyed to these satisfactory cells Amount, it is possible to reduce signaling process and raising measurement efficiency.That is, which can also include the first screening Unit；

First screening subelement, for that can determine the machine type communication characteristic needed for user terminal and obtain adjacent The machine type communication characteristic information that cell is supported；The machine type communication characteristic information supported according to adjacent cell determines energy Enough support the adjacent cell of the machine type communication characteristic needed for user terminal, adjacent cell collection after being screened；

Then at this point, first choice subelement, specifically for according to the result that the first measurement subelement measures from the screening Adjacent cell concentrates the top-quality adjacent cell of selection signal as new persistent district afterwards.

（1）The second way：

First processing units 503 can include the second measurement subelement and the second selection subelement；

Second measurement subelement, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing It is resident to flow in current persistent district, before needing to initiate random access, according to cell reselection measuring criterion, measured using Idle state Threshold parameter measures the signal quality of adjacent cell；

For example, wherein, " according to cell reselection measuring criterion, signal of the threshold parameter to adjacent cell is measured using Idle state Quality measures " can specifically it include：Before needing to initiate random access, determine that the measured value is less than Idle state and measures threshold value During parameter, the signal quality of adjacent cell is measured using Idle state measurement threshold parameter.

Wherein, it is accurate can to include common frequency measurement criterion, high priority alien frequencies or isosystem measurement for cell reselection measuring criterion Then with the alien frequencies or isosystem measurement of same priority, the embodiment of the method for front is for details, reference can be made to, details are not described herein.

Second measurement subelement, for when judging unit 502 determines that the measured value is more than preset measurement threshold value, continuing It is resident to flow in current persistent district, before needing to initiate random access, obtain the neighbour broadcasted in current persistent district broadcast message According to cell reselection measuring criterion, letter of the threshold parameter to all cells of adjacent cell concentration is measured using Idle state for cell set Number quality measures.

Second measurement subelement, for when judging unit 502 determines that the measured value is more than preset measurement threshold value, continuing It is resident to flow in current persistent district, before needing to initiate random access, cell list of the configuration in the user terminal is obtained, According to cell reselection measuring criterion, using Idle state measure threshold parameter to the signal qualities of all cells in the cell list into Row measurement.

Second measurement subelement, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to stay It stays and flows in current persistent district, before needing to initiate random access, according to cell reselection measuring criterion, Idle state is utilized to measure threshold Value parameter measures the signal quality of all cells that can be measured that.

Optionally, each cell can also broadcast the MTC characteristic informations that itself is supported, in this way, user terminal It is known which cell can support the MTC characteristics needed for itself, so as to only be surveyed to these satisfactory cells Amount, it is possible to reduce signaling process and raising measurement efficiency.That is, first processing units 503 are hated very much and further include the second screening son list Member；

Then at this point, the second selection subelement, the result that specifically can be used for being measured according to the second measurement subelement is from described Adjacent cell concentrates the top-quality adjacent cell of selection signal as new persistent district after screening.

Wherein it is possible to obtain the MTC characteristic informations that adjacent cell is supported in several ways, for example, pass through receive it is adjacent The broadcast message of cell actively sends request, etc. to adjacent cell, i.e.,：

Second screening subelement, specifically can be used for the broadcast message for receiving adjacent cell, wherein, the system letter of broadcast message The machine type communication characteristic information that adjacent cell is supported is carried in breath block.

Or；Second screening subelement, specifically can be used for sending the request for obtaining MTC characteristic informations to adjacent cell, connect Receive the machine type communication characteristic information that the adjacent cell that adjacent cell returns is supported.

In addition, it should be noted that, whether have pair since the user terminal for being in Idle state needs regular monitoring network It is paged, and user terminal monitors paging and needs to consume the energy of itself（Electric energy）, therefore, from the point of view of power saving, The user terminal generally use DRX modes of Idle state receive paging message, and the user terminal of Idle state is periodically DRX's Activation period（On Duration）Paging message is monitored, and is measured to carry out cell reselection, and user terminal usually will not In the sleep period of DRX（Off Duration）It measures.Therefore, if user terminal is configured with Idle state DRX, user Terminal may not measure cell to carry out cell reselection in time, for this purpose, in the embodiment of the present invention, can configure user Terminal ignore when needing to measure before initiating random access DRX configuration, even at DRX sleep period also at once into Row measurement, and carry out cell reselection.

It when it is implemented, Yi Shang unit can be independent entity to realize, can also be combined, be made It is realized for same or several entities, the specific implementation of more than unit can be found in the embodiment of the method for front, herein not It repeats again.

The cell access device is specifically as follows user terminal, the user's terminal be specifically as follows tablet computer, mobile phone or The equipment such as laptop.

From the foregoing, it will be observed that the detection unit 501 in the cell access device of the present embodiment can be in the free time in user terminal During state, the signal quality of the current persistent district of detection user terminal obtains measured value, then determines the survey by judging unit 502 Whether magnitude is more than preset measurement threshold value, wherein, which measures threshold parameter less than Idle state, if more than preset Threshold value is measured, then continues to be resident and flow in current persistent district, by first processing units 503 before needing to initiate random access, into Row cell reselection initiates random access procedure to determine new persistent district to the new persistent district；If less than or equal to preset Threshold value is measured, then cell reselection is carried out by second processing unit 504 to determine new persistent district.It is surveyed used by due to the program It measures threshold value and measures threshold parameter less than Idle state, therefore pendulous frequency can be reduced, achieve the purpose that economize on electricity, at the same time, It needs before initiating random access, and can measure so that gravity treatment is to a suitable new persistent district, then this is newly stayed Cell is stayed to initiate random access procedure, avoiding cannot be more suitably small by measuring discovery in time when reducing pendulous frequency Area, the problem of causing user terminal that may always reside in inappropriate cell, that is to say, that can dropped using the program On the premise of the power consumption of low user terminal so that user terminal carries out cell reselection in time, to improve network quality.

Embodiment six,

Correspondingly, the embodiment of the present invention also provides a kind of communication system, including provided in an embodiment of the present invention any small Area's access device for details, reference can be made to embodiment five, then specifically can be with for example, by the cell access device for exemplified by user terminal It is as follows：

User terminal, for when this user terminal is in Idle state, detecting the signal quality of current persistent district, obtaining Measured value；Determine whether the measured value is more than preset measurement threshold value, wherein, the measurement threshold value is less than Idle state measurement threshold value ginseng Number；It is flowed if so, continuing to be resident in current persistent district, before needing to initiate random access, carries out cell reselection to determine newly Persistent district, and random access procedure is initiated to the new persistent district；If it is not, it is small to determine newly to be resident then to carry out cell reselection Area for details, reference can be made to the embodiment of front, and details are not described herein.

In addition, the communication system can also include network side equipment, such as base station etc.；

Network side equipment for receiving the random access procedure of user terminal initiation, for example receives what user terminal was sent Random access request, and authenticate etc..

Since the communication system includes any cell access device provided in an embodiment of the present invention, it equally can be with Realize such as same advantageous effect of cell access device provided in an embodiment of the present invention, details are not described herein.

Embodiment seven,

Correspondingly, the embodiment of the present invention also provides a kind of user terminal, including processor, memory and Transmit-Receive Unit；

Processor, for when user terminal is in Idle state, detecting the signal quality of the current persistent district of user terminal, Obtain measured value；Determine whether the measured value is more than preset measurement threshold value, the measurement threshold value measures threshold less than Idle state Value parameter；It is flowed if so, continuing to be resident in current persistent district, before needing to initiate random access, carries out cell reselection with true Fixed new persistent district, and random access procedure is initiated to the new persistent district；If it is not, cell reselection is then carried out to determine newly to stay Stay cell.

Memory for storing data, for example stores measured value that processor detects etc..

Transmit-Receive Unit, for transceiving data.

For example, wherein, processor specifically can be used for when user terminal is in Idle state, detection user terminal is current The signal quality of persistent district, obtains measured value；Determine whether the measured value is more than preset measurement threshold value, wherein, the measurement Threshold value measures threshold parameter less than Idle state；It is flowed if so, continuing to be resident in current persistent district, is needing to initiate random access Before, the signal quality of adjacent cell is measured, is used as according to the top-quality adjacent cell of the result selection signal of measurement and newly stayed Cell is stayed, and random access procedure is initiated to the new persistent district；If it is not, it is small to determine newly to be resident then to carry out cell reselection Area.

Alternatively, processor, specifically can be used for when user terminal is in Idle state, detection user terminal is currently resident small The signal quality in area, obtains measured value；Determine whether the measured value is more than preset measurement threshold value, wherein, the measurement threshold value is low Threshold parameter is measured in Idle state；If so, continue resident stream in current persistent district, before needing to initiate random access, root According to cell reselection measuring criterion, the signal quality of adjacent cell is measured using Idle state measurement threshold parameter, according to measurement The top-quality adjacent cell of result selection signal initiate random access stream as new persistent district, and to the new persistent district Journey；If it is not, cell reselection is then carried out to determine new persistent district.

In addition, optional, each cell can also broadcast the MTC characteristic informations that itself is supported, in this way, user Terminal it is known which cell can support the MTC characteristics needed for itself, so as to only to these satisfactory cells into Row measurement, it is possible to reduce signaling process and raising measurement efficiency, i.e.,：

Processor can be also used for determining the MTC characteristics needed for user terminal and obtain the MTC that adjacent cell is supported Characteristic information；The adjacent cell of MTC characteristics according to needed for the MTC information that adjacent cell is supported is determined to support user terminal, Adjacent cell collection after being screened concentrates the top-quality adjacent cell of selection signal according to the result of measurement from adjacent cell after the screening As new persistent district.

In addition, it should be noted that, whether have pair since the user terminal for being in Idle state needs regular monitoring network It is paged, and user terminal monitors paging and needs to consume the energy of itself（Electric energy）, therefore, from the point of view of power saving, The user terminal generally use DRX modes of Idle state receive paging message, and the user terminal of Idle state is periodically DRX's Activation period monitors paging message, and measures to carry out cell reselection, and user terminal usually will not be in the sleep of DRX Phase measures.Therefore, if user terminal is configured with Idle state DRX, user terminal may not in time carry out cell Measurement is to carry out cell reselection, for this purpose, in the embodiment of the present invention, can configure user terminal needed before random access is initiated into Ignore DRX configurations during row measurement, also measured at once even at the sleep period of DRX, and carry out cell reselection.

The specific implementation of above each equipment can be found in the embodiment of front, and details are not described herein.

From the foregoing, it will be observed that the processor of the user terminal of the present embodiment can be detected when this user terminal is in Idle state The signal quality of current persistent district, obtains measured value, determines whether the measured value is more than preset measurement threshold value, wherein, it should Measurement threshold value measures threshold parameter less than Idle state, if more than preset measurement threshold value, then continues resident stream currently resident small Area before needing to initiate random access, carries out cell reselection to determine new persistent district, and the new persistent district is initiated random Access process；If less than or equal to preset measurement threshold value, cell reselection is carried out to determine new persistent district.By program institute The measurement threshold value of use measures threshold parameter less than Idle state, therefore can reduce pendulous frequency, achievees the purpose that economize on electricity, with this Meanwhile before needing to initiate random access, and it can measure so that gravity treatment is to a suitable new persistent district, it is then right Random access procedure is initiated in the new persistent district, and avoiding cannot be more suitable by measuring discovery in time when reducing pendulous frequency Cell, the problem of causing user terminal that may always reside in inappropriate cell, that is to say, that use the program can be with On the premise of the power consumption of user terminal is reduced so that user terminal carries out cell reselection in time, to improve network matter Amount.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Relevant hardware to be instructed to complete by program, which can be stored in a computer readable storage medium, storage Medium can include：Read-only memory（ROM, Read Only Memory）, random access memory（RAM, Random Access Memory）, disk or CD etc..

A kind of cell accessing method for being there is provided above to the embodiment of the present invention, device and system are described in detail, Specific case used herein is set forth the principle of the present invention and embodiment, and the explanation of above example is simply used Understand the method and its core concept of the present invention in help；Meanwhile for those skilled in the art, think of according to the invention Think, in specific embodiments and applications there will be changes, in conclusion this specification content should not be construed as pair The limitation of the present invention.

Claims

1. a kind of cell accessing method, which is characterized in that including：

Determine whether the measured value is more than preset measurement threshold value, the measurement threshold value measures threshold parameter less than Idle state；

If so, continuing to reside in the current persistent district, before needing to initiate random access, cell reselection is carried out to determine New persistent district, and random access procedure is initiated to the new persistent district；It is described need initiate random access before, carry out it is small Area's gravity treatment with determine new persistent district, including：Before needing to initiate random access, obtain wide in current persistent district broadcast message The adjacent cell collection broadcast according to cell reselection measuring criterion, is measured threshold parameter and the adjacent cell is concentrated and owned using Idle state The signal quality of cell measures；Alternatively, obtaining cell list of the configuration in the user terminal, surveyed according to cell reselection Criterion is measured, the signal quality of all cells in the cell list is measured using Idle state measurement threshold parameter；Alternatively, According to cell reselection measuring criterion, using Idle state measure threshold parameter to the signal qualities of all cells that can be measured that into Row measurement；According to the top-quality adjacent cell of result selection signal of measurement as new persistent district；If it is not, then carry out cell weight Choosing is with definite new persistent district.

2. according to the method described in claim 1, it is characterized in that, the result selection signal according to measurement is top-quality Before adjacent cell is as new persistent district, further include：

Determine the machine type communication characteristic needed for user terminal；

Machine type according to needed for the machine type communication characteristic information that adjacent cell is supported is determined to support user terminal The adjacent cell of communication characteristic, adjacent cell collection after being screened；

The top-quality adjacent cell of selection signal is specially as new persistent district：According to the result of measurement from the screening Adjacent cell concentrates the top-quality adjacent cell of selection signal as new persistent district afterwards.

3. the according to the method described in claim 2, it is characterized in that, machine type communication spy for obtaining adjacent cell and being supported Property information, including：

The broadcast message of adjacent cell is received, the machine type that adjacent cell is supported is carried in the system information block of the broadcast message Communication characteristic information.

4. a kind of cell access device, which is characterized in that including：

Detection unit, for when user terminal is in Idle state, the signal quality of the current persistent district of detection user terminal to obtain To measured value；

Judging unit, for determining whether the measured value is more than preset measurement threshold value, the measurement threshold value is less than Idle state Measure threshold parameter；

First processing units, for judging unit determine the measured value be more than preset measurement threshold value when, it is necessary to initiate with Before machine access, cell reselection is carried out to determine new persistent district, and random access procedure is initiated to the new persistent district；It is described First processing units include the second measurement subelement and the second selection subelement；The second measurement subelement, for judging When unit determines that the measured value is more than preset measurement threshold value, continue to reside in the current persistent district, needing to initiate Before random access, the adjacent cell collection broadcasted in current persistent district broadcast message is obtained, according to cell reselection measuring criterion, is utilized Idle state measures threshold parameter and the signal quality of all cells is concentrated to measure the adjacent cell；Or, second measurement Subelement described is currently stayed for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in Cell is stayed, before needing to initiate random access, cell list of the configuration in the user terminal is obtained, is surveyed according to cell reselection Criterion is measured, the signal quality of all cells in the cell list is measured using Idle state measurement threshold parameter；Or, institute The second measurement subelement is stated, for when judging unit determines that the measured value is more than preset measurement threshold value, continuing to reside in Before needing to initiate random access, according to cell reselection measuring criterion, threshold value is measured using Idle state for the current persistent district Parameter measures the signal quality of all cells that can be measured that；Second selection subelement, for according to the second measurement The top-quality adjacent cell of result selection signal of subelement measurement is as new persistent district；Second processing unit, for sentencing When disconnected unit determines that the measured value is less than or equal to preset measurement threshold value, cell reselection is carried out to determine new persistent district.

5. cell access device according to claim 4, which is characterized in that the first processing units further include the second sieve Select subelement；

Second screening subelement is propped up for determining the machine type communication characteristic needed for user terminal and obtaining adjacent cell The machine type communication characteristic information held；The machine type communication characteristic information supported according to adjacent cell is determined to support to use The adjacent cell of machine type communication characteristic needed for the terminal of family, adjacent cell collection after being screened；

The second selection subelement, specifically for the result that is measured according to the second measurement subelement from adjacent cell after the screening The top-quality adjacent cell of selection signal is concentrated as new persistent district.

6. a kind of communication system, which is characterized in that including claim 4 to 5 any one of them cell access device.

7. a kind of user terminal, which is characterized in that including processor, for the memory that stores data and for transceiving data Transmit-Receive Unit；

Wherein, the processor, for when user terminal is in Idle state, detecting the signal of the current persistent district of user terminal Quality obtains measured value；Determine whether the measured value is more than preset measurement threshold value, the measurement threshold value is surveyed less than Idle state Measure threshold parameter；If so, continuing to reside in the current persistent district, before needing to initiate random access, acquisition is currently stayed The adjacent cell collection broadcasted in cell broadcast messages is stayed, according to cell reselection measuring criterion, threshold parameter pair is measured using Idle state The adjacent cell concentrates the signal quality of all cells to measure；Alternatively, obtain cell of the configuration in the user terminal According to cell reselection measuring criterion, letter of the threshold parameter to all cells in the cell list is measured using Idle state for list Number quality measures；Alternatively, according to cell reselection measuring criterion, can be measured all using Idle state measurement threshold parameter To the signal quality of cell measure；It is small as being newly resident according to the top-quality adjacent cell of the result selection signal of measurement Area, and random access procedure is initiated to the new persistent district；If it is not, cell reselection is then carried out to determine new persistent district.