CN108235397A

CN108235397A - Control method, device and the mobile terminal of random access

Info

Publication number: CN108235397A
Application number: CN201810323315.8A
Authority: CN
Inventors: 王燕飞
Original assignee: Qiku Internet Technology Shenzhen Co Ltd
Current assignee: Qiku Internet Technology Shenzhen Co Ltd
Priority date: 2018-04-10
Filing date: 2018-04-10
Publication date: 2018-06-29
Also published as: WO2019196670A1

Abstract

The embodiment of the present invention provides a kind of control method of random access, device and mobile terminal, wherein, this method includes：When mobile terminal is to first community initiating random access procedure, judge whether to be successfully accessed the high standard network of first community；If not, the reselecting parameters of adjustment first community, to reduce the probability that first community is selected；Re-selecting cell obtains second community；To second community initiating random access procedure, to access the high standard network of second community.The present invention can increase the probability that mobile terminal accesses supreme standard network, the stability of network insertion be improved, so as to promote the online experience of user.

Description

Control method, device and the mobile terminal of random access

Technical field

The present invention relates to the communications fields, whole in particular to a kind of control method of random access, device and movement End.

Background technology

In the random access procedure, communication is easily interfered by the outside or inside of base station；When interfering excessive, UE It communicates and is obstructed between (User Equipment, user equipment) and eNB (evolved Node B, evolved base station), lead to UE The access response from eNB is not received；At this point, the 4G networks of the cell can be evaded falling by UE, 2G or 3G network are connected to, is led Cause the UE that can not log in 4G networks.However, the relatively high standard network such as network bandwidth, network signal quality of low standard network compared with Difference, it is difficult to meet the online demand of the high standard network of user's script, the online experience degree for leading to user is poor.

Invention content

In view of this, the embodiment of the present invention is designed to provide a kind of control method of random access, device and movement Terminal to increase the probability that mobile terminal accesses supreme standard network, improves the stability of network insertion, so as to promote user's Online experience.

To achieve these goals, technical solution used in the embodiment of the present invention is as follows：

In a first aspect, an embodiment of the present invention provides a kind of control method of random access, method is applied to mobile terminal, Including：When mobile terminal is to first community initiating random access procedure, judge whether to be successfully accessed the high standard of first community Network；If not, the reselecting parameters of adjustment first community, to reduce the probability that first community is selected；Re-selecting cell obtains Two cells；To second community initiating random access procedure, to access the high standard network of second community.

In preferred embodiments of the present invention, the step of the reselecting parameters of above-mentioned adjustment first community, including：Reset first The reference parameter of cell, to reduce the priority of first community；Reference parameter includes receiving power and/or signal quality.

In preferred embodiments of the present invention, it is above-mentioned reset first community reference parameter the step of, including：It is small by first The reference parameter in area subtracts the bias of setting, and bias is more than 0；Alternatively, the reference parameter of first community is multiplied by setting Weights, weights are less than 1.

In preferred embodiments of the present invention, the step of the reselecting parameters of above-mentioned adjustment first community, including：Reduce by first The priority of the specified frequency point of cell.

In preferred embodiments of the present invention, the step of the reselecting parameters of above-mentioned adjustment first community after, method is also wrapped It includes：Start timing；When reaching setting duration, restore the reselecting parameters of first community.

It is above-mentioned to include to second community initiating random access procedure in preferred embodiments of the present invention：In setting duration It is interior, to second community initiating random access procedure.

In preferred embodiments of the present invention, above-mentioned re-selecting cell, the step of obtaining second community, including：According to candidate The reselecting parameters of each cell in cell, select optimal cell, as second community.

Second aspect, an embodiment of the present invention provides a kind of control device of random access, device is applied to mobile terminal, Including：Judgment module, for when mobile terminal is to first community initiating random access procedure, judging whether to be successfully accessed first The high standard network of cell；Parameter adjustment module, if for not being successfully accessed the high standard network of first community, adjustment the The reselecting parameters of one cell, to reduce the probability that first community is selected；For re-selecting cell, it is small to obtain second for gravity treatment module Area；AM access module, for second community initiating random access procedure, to access the high standard network of second community.

The third aspect, an embodiment of the present invention provides a kind of mobile terminal, mobile terminal includes memory and processor, For storing the program for the control method that processor is supported to perform above-mentioned random access, processor is configurable for holding memory The program stored in line storage.

Fourth aspect, an embodiment of the present invention provides a kind of computer storage media, for saving as above-mentioned random access Control device used in computer software instructions.

Compared with prior art, the control method of random access provided in an embodiment of the present invention, device, mobile terminal and meter Calculation machine storage medium when mobile terminal cannot be successfully accessed the high standard network of first community, adjusts the gravity treatment of first community Parameter, to reduce the probability that first community is selected；Gravity treatment obtains second community, and initiates random access mistake to the second community Journey, to access the high standard network of second community；Which can increase the probability that mobile terminal accesses supreme standard network, carry The stability of high network insertion, so as to promote the online experience of user.

For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate Appended attached drawing, is described in detail below.

Description of the drawings

It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.

Fig. 1 is a kind of flow chart of the control method of random access provided in an embodiment of the present invention；

Fig. 2 is the method flow diagram of random access procedure provided in an embodiment of the present invention；

Fig. 3 is the interacting message schematic diagram in a kind of competitive type random access procedure provided in an embodiment of the present invention；

Fig. 4 is the flow chart of the control method of another random access provided in an embodiment of the present invention；

Fig. 5 is the flow chart of the control method of another random access provided in an embodiment of the present invention；

Fig. 6 is a kind of update flow diagram of tracking area provided in an embodiment of the present invention；

Fig. 7 is the flow chart of the control method of another random access provided in an embodiment of the present invention；

Fig. 8 is a kind of structure diagram of the control device of random access provided in an embodiment of the present invention；

Fig. 9 is the structure diagram of the control device of another random access provided in an embodiment of the present invention；

Figure 10 is a kind of structure diagram of mobile terminal provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Usually exist The component of the embodiment of the present invention described and illustrated in attached drawing can be configured to arrange and design with a variety of different herein.Cause This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.

The mobile terminal of the embodiment of the present invention generally includes the mobile phone of various models or the terminal with mobile communication function Equipment, in embodiments of the present invention, sometimes also abbreviation mobile terminal is UE, and mobile terminal is establishing communication link with base station When, it is often necessary to initiating random access procedure；By the random access procedure, can make on synchronous between mobile terminal and base station Row time and realization information exchange, and then complete the tasks such as calling, resource request, data transmission, therefore, random access Validity may directly affect the online experience of user.

Mobile terminal changes in booting, position or during from low standard network to high standard network switching, may Trigger above-mentioned random access procedure；Random access procedure can be such that mobile terminal is converted by Idle state to activated state, so as to connect To high standard networks such as LTE (Long Term Evolution, long term evolution) or 4G.Below using low standard network as 2G or 3G network, high standard network are illustrated for 4G networks, 4G+ networks or 5G networks etc..

In the random access procedure, the interaction between UE and eNB may be by the internal interference of base station or external disturbance shadow It rings, UE or eNB is caused not receive the information of other side's transmission；These interference may be from other base stations or other external equipments Interference source, this interference are also referred to as external disturbance；Or these interference may also come from inside of base station, for example, portfolio it is excessive, Carrier frequency fault etc., this interference are also referred to as internal interference.

When above-mentioned interference is excessive, UE is easily fallen after rise to low standard network when not receiving the response of base station, and low system The relatively high standard network such as network bandwidth, network signal quality of formula network is poor, surfs the Internet with the high standard network of user's script Demand is not inconsistent, and the online experience degree for leading to user is poor.Based on this, an embodiment of the present invention provides a kind of controls of random access Method, apparatus, mobile terminal and computer storage media；The technology can be applied to the mobile terminals such as mobile phone, tablet computer or Other can be logged in the equipment of mobile communications network；Relevant software or hardware realization may be used in the technology, below by Embodiment is described.

A kind of flow chart of the control method of random access shown in Figure 1, this method are applied to mobile terminal, the party Method includes the following steps：

Step S102 when mobile terminal is to first community initiating random access procedure, judges whether to be successfully accessed first The high standard network of cell；

In initiating random access procedure, might have multiple candidate cells can access mobile terminal；Mobile terminal can Each cell is ranked up with parameters such as signal strength, the stability according to cell base station, so as to select optimal cell as Above-mentioned first community is accessed, for example, the first community selected can be the most strong cell of signal strength.

When initiating access procedure to first community, mobile terminal can the preferred high standard network for accessing first community.Such as Fruit mobile terminal sends the related news in random access procedure to the base station of first community, if do not connect within the set duration Receive the base station should feed back or respond message when, it will usually send again the related news or persistently wait for one section when Between, if the number for sending the related news reach setting number or waiting duration reach setting duration when, it is determined that this connects Enter the high standard network failure of first community.

Step S104, if not, the reselecting parameters of adjustment first community, to reduce the probability that first community is selected；

Step S106, re-selecting cell obtain second community；

It, can according to existing agreement it is found that if mobile terminal cannot be successfully accessed the high standard network of first community It attempts to access the low standard networks such as the 2G or 3G of the first community；The problem of being fallen after rise in order to avoid this network formats, this implementation Example adjusts the reselecting parameters of first community when finding that mobile terminal cannot be successfully accessed the high standard network of first community, with The probability that first community is selected is reduced, mobile terminal gravity treatment is made to obtain second community, and attempt to access the height of the second community Standard network, to increase the probability that mobile terminal accesses supreme standard network.

Above-mentioned reselecting parameters can be the reference parameter of cell that mobile terminal test obtains, for example, the reception work(of cell Rate, signal quality etc.；The cell that mobile terminal would generally select reference parameter optimal initiates access；Above-mentioned mobile terminal warp-wise First community initiates access, then illustrates that reference parameter of the first community in alternative cell is optimal；But mobile terminal is difficult to connect Enter the high standard network of the first community, in order to avoid mobile terminal selects the first community again, then test can be obtained The reference parameter of the first community be modified, the reselecting parameters of first community are obtained, so that the first community can't be The optimal cell of reference parameter in candidate cell reduces the probability that first community is selected, makes mobile terminal as possible from other Reference parameter is selected in cell with respect to the cell of suboptimum, and accesses high standard network, supreme standard is accessed to increase mobile terminal The success rate of network.

In many cases, mobile terminal can be arranged candidate cell according to the reference parameter of each candidate cell Sequence；The optimal cell of reference parameter is located at the first place of sequence；After the reference parameter change of above-mentioned first community, which exists Position in sequence can be exchanged according to above-mentioned reselecting parameters, for example, being exchanged by first to the 5th；In this case, only Have in the case where the high standard network of the cell of first four cannot be accessed by mobile terminal, first community is just selected again In, greatly reduce the probability that first community is selected.

Certainly, if the reference parameter of first community and the reference parameter gap of other candidate cells are larger, even if carrying out Adjustment, also still gets well than other candidate cells；After the reference parameter change of i.e. above-mentioned first community, the first community is in sequence Position in row still position first, at this point, first community can be chosen again, as second community.Therefore, this is second small Area may be other cells in addition to first community, it is also possible to or first community.The selection mode of the second community also may be used With the selection mode with reference to first community.

Step S108, to second community initiating random access procedure, to access the high standard network of second community.

Above-mentioned first community is usually the most strong cell of signal, but interference is larger, and the signal strength of second community may It is lower than the signal strength of first community, but the interference of second community is smaller or noiseless, relative to accessing to first community Low standard network, accessing the high standard network of second community often can more meet the online demand of user.Mobile terminal access the The process of the high standard network of two cells is referred to the method flow diagram of random access procedure shown in Fig. 2, and this method is made with height Formula network is for 4G networks, which includes the following steps：

Step S202, UE send random access lead code to the eNB of second community, which is referred to as Message1；The UE includes mobile terminal, mobile phone, data card etc.；Before UE can be randomly choosed from two pre-defined groups Leading code, and pass through Physical Random Access Channel PRACH and the lead code is sent to eNB, step S202 is referred to as power Detection steps.

Step S204, eNB respond random access resource information to UE, which is referred to as Message2；After eNB receives above-mentioned lead code, confirm whether the lead code is occupied by other UE, if not, being total to by downlink It is random access resource of the UE distribution for uplink communication to enjoy channel DL-SCH.

Step S206, UE send contention resolution message to above-mentioned eNB, which is referred to as Message3；After UE receives above-mentioned random access resource information, time synchronization is carried out, and start to perform competing with current tracking area Settlement procedure is striven, after being finished, above-mentioned contention resolution message is sent to eNB.

Step S208, eNB respond competition resolution mark to UE, and competition resolution mark is referred to as Message4；eNB After receiving above-mentioned contention resolution message, competition resolution mark is responded to UE, competition resolution mark can be from above-mentioned Extraction obtains in Message3；Can be that UE distributes the required time-frequency of data transmission by responding competition resolution mark to UE Resource or channel.

If the mobile terminal can not be successfully accessed the high standard network of second community, the second community can be adjusted Reselecting parameters, to reduce the probability that second community is selected, and re-selecting cell, obtain new second community.

The control method of random access provided in an embodiment of the present invention, when mobile terminal cannot be successfully accessed first community During high standard network, the reselecting parameters of first community are adjusted, to reduce the probability that first community is selected；It is small that gravity treatment obtains second Area, and to the second community initiating random access procedure, to access the high standard network of second community；Which can increase shifting Dynamic terminal accesses the probability of supreme standard network, the stability of network insertion is improved, so as to promote the online experience of user.

The random access procedure of connection 4G networks can be divided into competitive type and non-competitive, wherein, competitive type random access Process is often referred to before a random access, and the lead code of the upper no base station distribution of UE is needed in the random access procedure to base station It obtains.And non-competitive random access procedure refers on UE the pre-assigned lead code in base station, i.e. UE is initiating random access mistake Before journey, eNB has been assigned with the random access resource for uplink communication to UE.Therefore, UE can be protected by checking whether It is competitive type or non-competitive to have lead code judgement to be currently accessed process.

Interacting message schematic diagram in competitive type random access procedure shown in Figure 3, the random process with UE with When track area updates, initiate to illustrate for random access, specifically include procedure below：

UE sends above-mentioned Message1 when carrying out tracing section updating, to the eNB of first community, to access first community High standard network, if eNB is disturbed to a certain extent, it is likely that eNB can not receive Message1, cause UE normal Message2 is received, the present embodiment is by taking UE continues to repeat to send Message1 as an example, if the number for sending Message1 reaches To the n times (such as 5 times or 6 inferior) of setting, then the access procedure of 2G or 3G is initiated to the eNB.

It, can be to if UE, which is not up in the number for sending Message1 within the n times set, can receive Message2 ENB sends above-mentioned Message3, can be that is, if normal similar to the processing mode of above-mentioned Message1 after sending Message3 Message4 is received, then initiates the more new technological process of related access parameter, and is successfully accessed the high standard network of first community.It is no It can then continue to repeat to send Message3, until transmission times reaches m times of setting, (m can be equal or unequal with n, example Such as it is the arbitrary value in 3 times to 6 times).If still not receiving Message4, the access of 2G or 3G is initiated to the eNB Process.

The access procedure that UE initiates 2G or 3G to the eNB can include：UE deletes current position area identification code LAI, faces When mobile user identification TMSI, encryption key sequence number and equivalent public land mobile network PLMN lists, and shape will be updated State is set as U2NOT UPDATED；And then UE can also attempt to select gsm wireless access net GERAN or the wireless universal of evolution Access net UTRAN；Wherein, GERAN and UTRAN belong to 3G network.

Interactive process is it is found that random access procedure for competitive type as shown in Figure 3, if UE send Message1 or After Message3 reaches the maximum number of times of transmission, corresponding Message2 or Message4 is not received still, and UE may at this time 4G networks can be evaded falling, be connected to the 2G or 3G network of the eNB respective cells, cause the UE can not according to existing agreement Log in 4G networks.Therefore UE can judge that this accesses high standard network and is by way of monitoring related news and whether receiving No failure.Based on this, the flow chart of the control method of another random access shown in Figure 4, this method is shown in figure 3 It is realized on the basis of method；In this method, when mobile terminal sends the specified message in random access procedure to first community, prison Survey the parameter of measurement for not receiving the corresponding response message of specified message；If the parameter of measurement reaches predetermined threshold value, determine Access the high standard network failure of first community.

This method specifically comprises the following steps：

Step S402, mobile terminal send the specified message in random access procedure to first community；The specified message was both Can be above-mentioned Message1, i.e. random access lead code, or above-mentioned Message3, i.e. contention resolution message.

Step S404 judges whether to receive the corresponding response message of specified message；If so, perform step S405；Such as Fruit is no, performs step S406；

Step S405 determines the high standard network success of access first community；Terminate；

If being appreciated that the specified message is Message1, corresponding response message is Message2, is received After Message2, mobile terminal continues to send Message3, and after receiving Message4, just can determine access first community High standard network success；If the specified message is Message3, corresponding response message is Message4, that is, is received After Message4, you can determine the high standard network success of access first community.

Step S406, monitoring do not receive the parameter of measurement of the corresponding response message of specified message；

The parameter of measurement includes：The transmission times of specified message, the transmission wheel number of specified message or specified from first The delivery time of message is to the duration of current time；Wherein, it is preset value to send the time span often taken turns in wheel number, In the time span, specified message can be continuously or discontinuously sent repeatedly, i.e., often wheel can send repeatedly specified message.Specifically During realization, a time window can be set, the length of the time window is the time span often taken turns, and in the time window, is repeatedly sent out Specified message is sent, until the time window terminates, epicycle, which is sent, to be terminated.Start next time window, start next round and send behaviour Make, and so on, until sending wheel number reaches predetermined threshold value.

Alternatively, above-mentioned transmission wheel number is also understood that and is：1=1 random access failure of wheel reports=n times random access mistake It loses.By taking TAU (tracing section updating process)/Attach (attaching process) as an example, random access failure, which reports, can refer to UE bottoms and exist After establishing RRC connections (i.e. above-mentioned random access procedure) failure, instruction upper layer message sends failure, refers to when UE upper stratas receive this When showing, wheel number will be sent and add 1.UE lower floors carry out the random access procedure of next round by reattempting to, and reach until sending wheel number Predetermined threshold value.

Above-mentioned transmission times can refer to the number of the number that UE bottoms send specified message, i.e. random access procedure trial, It is multiple send specified message during, can by constantly increase it is superpower in a manner of, until power reaches the preset upper limit of the power, Or transmission times reaches the preset number upper limit, can carry out random access failure at this time and report operation.It is above-mentioned from first The duration of delivery time to the current time of specified message may be that the total of TAU or Attach attempts the time.

Step S408, judges whether the parameter of measurement reaches predetermined threshold value；If so, perform step S410；If not, Perform step S402；

If for example, the parameter of measurement is the transmission times of specified message, maximum number of times of transmission conduct can be pre-set Predetermined threshold value；If the parameter of measurement is the transmission wheel number of specified message, the maximum wheel number that sends can be pre-set as pre- Gating limit value；As described above, the time span often taken turns sent in wheel number is preset value, in the time span, move Dynamic terminal can send specified message continuously or at set time intervals；It can the company of holding between the time span often taken turns It is continuous, regular hour gap can also be set；It is of course also possible to it is to set in advance to set the transmission times often taken turns sent in wheel number Fixed value.

In order to avoid mobile terminal is directly fallen after rise in first community to low standard network, the pre- gating of above-mentioned parameter of measurement Limit value is fallen after rise less than mobile terminal to corresponding threshold value during low standard network；If for example, the parameter of measurement is specified message Transmission times, and mobile terminal falls after rise to corresponding maximum number of times of transmission during low standard network and is set as N, then for determining to connect The maximum number of times of transmission M for entering the high standard network failure of first community is less than N, so that mobile terminal is being fallen after rise to low standard network Before, the operation of subsequent adjustment reselecting parameters is just carried out to first community.

Step S410 determines the high standard network failure of access first community, resets the reference parameter of first community, with drop The priority of low first community；The reference parameter includes receiving power and/or signal quality.

The reference parameter can include receiving power and signal quality simultaneously, can also only include receiving power or signal matter One of amount；Wherein, which is referred to as receiving level；Mobile terminal test is to the reference parameter of each candidate cell Afterwards, can priority tag be added for each candidate cell according to reference parameter；For example, current priority is divided into Pyatyi, respectively The corresponding priority tag of grade is respectively 1 to 5；After mobile terminal resets the reference parameter of first community, can adjust this first The priority of cell is such as adjusted from five-star 1 grade to 5 grades of lowermost level, so as to reduce the priority of the first community.

It is above-mentioned reset first community reference parameter the step of, can specifically pass through the realization of one of following manner：Mode 1, The reference parameter of first community is subtracted to the bias of setting, bias is more than 0；Alternatively, mode 2, by the reference of first community Parameter is multiplied by the weights of setting, and weights are less than 1.

For mode 1, when reference parameter includes receiving power, above-mentioned reception power Srxlev (is referred to as receiving Level) it can be calculated by following formula：

Srxlev=Q_rxlevmeas–(Q_rxlevmin+Q_{rxlevminoffset})–Pcompensation–Qoffset；

Wherein, Q_rxlevmeasThe measured value of level is received for cell；Q_rxlevminFor minimum level power；Q_{rxlevminoffset}For Minimum receiving level biases；Pcompensation is offset；Qoffset_tempBias for above-mentioned setting.

In general, the practical reception power Srxlev ' of cell is：

Srxlev '=Q_rxlevmeas–(Q_rxlevmin+Q_{rxlevminoffset})–Pcompensation；

When mobile terminal can not access the cell, then practical reception power is subtracted to the bias of above-mentioned setting, i.e., Srxlev '-Qoffset=Srxlev.

When reference parameter includes signal quality, above-mentioned signal quality Squal is：

Squal=Q_qualmeas–(Q_qualmin+Q_{qualminoffset})-Qoffset_temp；

Wherein, Q_qualmeasMeasured value for cell signal quality；Q_qualminFor lowest signal qualities；Q_{qualminoffset}For most Low signal quality biases；Qoffset_tempThe bias of above-mentioned setting.

In general, the actual signal quality Squal ' of cell is：

Squal '=Q_qualmeas–(Q_qualmin+Q_{qualminoffset})；

When mobile terminal can not access the cell, then actual signal quality is subtracted to the bias of above-mentioned setting, i.e., Squal '-Qoffset=Squal.

For mode 2, when reference parameter includes receiving power, above-mentioned reception power Srxlev can pass through following manner Calculate Srxlev=Srxlev ' × K；Wherein, K is the weights of above-mentioned setting；It is above-mentioned when reference parameter includes signal quality Squal can calculate Squal=Squal ' × K by following manner；K is the weights of above-mentioned setting.

When that in actual implementation, can set as Srxlev ＞ 0 and Squal ＞ 0, the cell is still in candidate cell； As Srxlev≤0 or Squal≤0, which deletes from candidate cell, that is, the cell is zero by the probability of gravity treatment. In the case of Srxlev ＞ 0 and Squal ＞ 0, the value of Srxlev and Squal are higher, and the priority of cell is higher.

In the case where candidate cell is limited, mobile terminal may repeatedly initiate to access same cell, in set period of time It is interior, when mobile terminal accesses the high standard network of the cell, often fail primary, above-mentioned reference parameter can be subtracted to a biasing It is worth or is multiplied by a weights；Which can make can not always to access the cell of high standard network to reset parameter less and less, Priority is lower and lower, and the candidate cell priority ranking for making mobile terminal is more reasonable, contributes to the high system of mobile terminal access Formula network.

Step S412, re-selecting cell obtain second community；

Step S414, to second community initiating random access procedure, to access the high standard network of second community.

In aforesaid way, when not receiving the parameter of measurement of the corresponding response message of specified message and reaching predetermined threshold value, The reference parameter of first community is reseted, to reduce the priority of first community, then gravity treatment obtains second community, and second small to this Area's initiating random access procedure, to access the high standard network of the second community；Which can it is easy, quickly reduce can not The priority of the cell of high standard network is accessed, so as to increase the probability that mobile terminal accesses supreme standard network, improves network The stability of access, so as to promote the online experience of user.

The embodiment of the present invention additionally provides the control method of another random access, this method shown method base in Fig. 4 It is realized on plinth；As shown in figure 5, this method comprises the following steps：

Step S502, mobile terminal send the specified message in random access procedure to first community；

Step S504 judges whether to receive the corresponding response message of specified message；If so, perform step S505；Such as Fruit is no, performs step S506；

Step S505 determines the high standard network success of access first community；Terminate；

Step S506, monitoring do not receive the parameter of measurement of the corresponding response message of specified message；

Step S508, judges whether the parameter of measurement reaches predetermined threshold value；If so, perform step S510；If not, Perform step S502；

Step S510, determine access first community high standard network failure, reduce first community specified frequency point it is excellent First grade；Start timing；The frequency point that the specified frequency point uses when accessing the high standard network failure of first community for this.

For the cell of inter-frequency networking, the frequency point used between neighboring community is different；Each cell may use one or Multiple frequency points；Therefore, can measure each frequency point reference parameter (such as：Signal strength or power), and then determine each frequency Click through row major grade；Again in intelligent district each frequency point priority, determine the priority of each cell.

Priority by the specified frequency point for reducing first community can be dropped when mobile terminal restarts selection cell access The probability that low first community is selected alternatively, when user initiates manual reselection cell, can also reduce the first community and be weighed The probability of choosing.

Step S512 according to the reselecting parameters of cell each in candidate cell, selects optimal cell, small as second Area.

Step S514 within the set duration, to second community initiating random access procedure, is made with accessing the high of second community Formula network.

Step S516 when reaching setting duration, restores the reselecting parameters of first community.

In order to improve the efficiency of random access procedure, after mobile terminal accesses the high standard network failure of first community, need Random access procedure is initiated to second community as early as possible, therefore, in step S514 can pre-set above-mentioned setting duration；Together When, the reseting time of the reference parameter of first community is limited, if slowly not initiating random access procedure to second community, After the reference parameter of first community restores, since first community reference parameter is optimal, mobile terminal can may select first again Cell is accessed, if current first community interference is still larger, still cannot be successfully accessed, and have little time to second Cell initiates random access procedure, this is easy to that access process is made to be absorbed in always into the endless loop that first community initiates access, And then mobile terminal is caused to be not connectable in mobile network always.

For example, as shown in fig. 6, mobile terminal when carrying out tracing section updating, if mobile terminal sends Message1 It takes turns number and reaches setting wheel number, then reset the reference parameter of first community；Mobile terminal selects second community, and to second Cell sends Message1, if the second community interferes smaller, subsequent Message2, Message3 and Message4 meeting Normal transmission, so as to complete the more new technological process of tracking area.If in existing regulation, mobile terminal sends Message1 and reaches 5 wheels Afterwards, it can fall after rise to low standard network, then the above-mentioned setting wheel number in the embodiment of the present invention can be less than 5 wheels, for example, being set as 2 Wheel or 3 wheels etc..

Above-mentioned setting duration can be above-mentioned 300 seconds, others can also be set to set according to the time parameter of random access Timing is long；In general, in order to which mobile terminal is made to have an opportunity access second community, the setting duration in step S516 can be more than step Setting duration in S514.

In many cases, the interference of the high standard network failure of access first community is caused to be interfered to be interim, it may After a period of time, after which disappears or form the trouble shooting of interference automatically, which disappears；If the interference disappears Afterwards, the reselecting parameters of first community are not responded, and are not connectable to that reference parameter is optimal, priority it will cause mobile terminal It in highest cell, causes network signal resource that cannot be used appropriately, forms the wasting of resources.

Therefore, when reaching setting duration, restore the reselecting parameters of first community, so that mobile terminal triggers at random again During access process, it can still attempt to connect the first community, so as to which mobile terminal be allow to be connected to reference parameter always most In excellent cell, while it can realize the reasonable utilization of network signal resource.

In aforesaid way, after accessing the high standard network failure of first community, reduce first community specified frequency point it is excellent First grade, to reduce the probability that first community is selected, then gravity treatment obtains second community, and within the set duration, second small to this Area's initiating random access procedure；Which can it is easy, quickly reject the cell that can not access high standard network, so as to increase Mobile terminal accesses the probability of supreme standard network, the stability of network insertion is improved, so as to promote the online experience of user.

In which, by reseting the duration of reference parameter, both mobile terminal can be made to have an opportunity to access other cells High standard network can also make mobile terminal subsequently can still attempt to connect the first community, so as to make mobile terminal always It is connected in the optimal cell of reference parameter, promotes the online experience of user.

The embodiment of the present invention additionally provides the control method of another random access, this method shown method base in Fig. 4 It is realized on plinth；It can be seen from the above, random access procedure is divided into competitive type and non-competitive, and the specific access procedure of the two exists Difference, therefore, before random access procedure is triggered, it is often necessary to identify the type of the random access procedure of first community.

It is mobile if the random access procedure that mobile terminal is initiated to first community is based on competition mechanism in the embodiment The specified message that terminal sends in random access procedure to first community is random access request message；If mobile terminal is to The random access procedure that one cell is initiated is based on non-competitive mechanism, and above-mentioned specified message is contention resolution message.Competition mechanism and Non-competitive mechanism can be correspondingly referring to above-mentioned competitive type and non-competitive random access procedure.

As shown in fig. 7, this method comprises the following steps：

Step S702 detects whether to preserve the random access code of first community；If not, step S704 is performed, if It is to perform step S706；

Step S704 initiates the random access procedure based on competition mechanism to first community；Perform step S708；

Step S706 initiates the random access procedure based on non-competitive mechanism to first community；Perform step S710；

Step S708, mobile terminal send the random access request message in random access procedure to first community；It performs Step S712；The random access request message is equivalent to above-mentioned Message1；

Step S710, mobile terminal send the contention resolution message in random access procedure to first community；The competition solution Certainly message is equivalent to above-mentioned Message3；

Step S712 judges whether to receive the corresponding response message of specified message；If so, perform step S713；Such as Fruit is no, performs step S714；

Step S713 determines the high standard network success of access first community, terminates；

Step S714, monitoring do not receive the parameter of measurement of the corresponding response message of specified message；

Step S716 if the parameter of measurement reaches predetermined threshold value, determines that the high standard network of access first community loses It loses；

Step S718 resets the reference parameter of first community, to reduce the priority of first community；

Step S720, re-selecting cell obtain second community；

Step S722, to second community initiating random access procedure, to access the high standard network of second community.

In aforesaid way, random access procedure is competitive type or non-competitive, by the ginseng for reseting first community Examine parameter and re-selecting cell can it is easy, quickly reject the cell that can not access high standard network, so as to increase mobile terminal The probability of supreme standard network is accessed, improves the stability of network insertion, so as to promote the online experience of user.

Corresponding to above method embodiment, a kind of structure diagram of the control device of random access shown in Figure 8, The device is set to mobile terminal, including：

Judgment module 80, for when mobile terminal is to first community initiating random access procedure, judging whether successfully to connect Enter the high standard network of first community；

If parameter adjustment module 81 for not being successfully accessed the high standard network of first community, adjusts first community Reselecting parameters, to reduce the probability that first community is selected；

Gravity treatment module 82 for re-selecting cell, obtains second community；

AM access module 83, for second community initiating random access procedure, to access the high standard network of second community.

Above-mentioned parameter adjusts module, is additionally operable to：The reference parameter of first community is reseted, to reduce the preferential of first community Grade；Reference parameter includes receiving power and/or signal quality.

Above-mentioned gravity treatment module, is additionally operable to：The reference parameter of first community is subtracted to the bias of setting, bias is more than 0； Alternatively, the reference parameter of first community to be multiplied by the weights of setting, weights are less than 1.

Above-mentioned parameter adjusts module, is additionally operable to：Reduce the priority of the specified frequency point of first community.

The embodiment of the present invention additionally provides the control device of another random access, as shown in figure 9, device shown in Fig. 8 Basis, which further includes：

Monitoring modular 90, for detecting whether preserving the random access code of first community；

If initiation module 91 for preserving the random access code of first community, is initiated to first community based on competition The random access procedure of mechanism；Otherwise, the random access procedure based on non-competitive mechanism is initiated to first community.

Timing module 92, for starting timing；

Parameter recovery module 93, for when reaching setting duration, restoring the reselecting parameters of first community.

Above-mentioned AM access module, is additionally operable to：Within the set duration, to second community initiating random access procedure.

Above-mentioned gravity treatment module, is additionally operable to：According to the reselecting parameters of cell each in candidate cell, optimal cell is selected, As second community.

Above-mentioned judgment module, is additionally operable to：When specified message of the mobile terminal into first community transmission random access procedure When, monitoring does not receive the parameter of measurement of the corresponding response message of specified message；If parameter of measurement reaches predetermined threshold value, really Surely the high standard network failure of first community is accessed.

If the random access procedure that mobile terminal is initiated to first community is based on competition mechanism, specified message is connects at random Enter request message；If the random access procedure that mobile terminal is initiated to first community is based on non-competitive mechanism, specified message is Contention resolution message.

Above-mentioned parameter of measurement includes：The transmission times of specified message, the transmission wheel number of specified message refer to from first The delivery time of message is determined to the duration of current time；Wherein, it is preset to send the time span often taken turns in wheel number Value.Above-mentioned threshold value is fallen after rise less than mobile terminal to corresponding threshold value during low standard network.

The embodiment of the present invention additionally provides a kind of mobile terminal, which includes memory and processor, storage Device supports that processor performs the program of the control method of random access that is provided of previous embodiment for storing, processor by with It is set to perform the program stored in memory.The mobile terminal can also include communication interface, for other equipment or Communication.The mobile terminal can be to include mobile phone, tablet computer, PDA (Personal Digital Assistant, personal digital assistant), the arbitrary terminal device such as vehicle-mounted computer.

Further, the present embodiment additionally provides a kind of computer storage media, is provided for saving as previous embodiment Any one random access control device used in computer software instructions.

A kind of structure diagram of mobile terminal as shown in Figure 10, the mobile terminal 100 include：Radio frequency (Radio Frequency, RF) circuit 110, memory 120, input unit 130, display unit 140, sensor 150, voicefrequency circuit 160, The components such as Wireless Fidelity (Wireless Fidelity, WiFi) module 170, processor 180 and power supply 190.This field skill Art personnel are appreciated that 100 structure of mobile terminal shown in Figure 10 does not form the restriction to mobile terminal 100, can wrap It includes and either combines certain components or different components arrangement than illustrating more or fewer components.

Each component parts of mobile terminal 100 is specifically introduced with reference to Figure 10：

RF circuits 110 can be used for receive and send messages or communication process in, signal sends and receivees, particularly, by base station After downlink information receives, handled to processor 180；In addition, the data for designing uplink are sent to base station.In general, RF circuits 110 Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition, RF circuits 110 can also communicate with network and other equipment by radio communication. Above-mentioned wireless communication can use any communication standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), long term evolution (Long Term Evolution, LTE), Email, short message service (Short Messaging Service, SMS) etc..

Memory 120 can be used for storage software program and module, the side as controlled WiFi network speeds in the embodiment of the present invention Corresponding program instruction/the module of method, processor 180 are stored in the software program and module of memory 120 by operation, so as to Perform the control of various function application and the data processing, such as random access provided in an embodiment of the present invention of mobile terminal 100 Method.Memory 120 can mainly include storing program area and storage data field, wherein, storing program area can storage program area, Application program (such as sound-playing function, image player function etc.) needed at least one function etc.；Storage data field can deposit Storage uses created data (such as audio data, phone directory etc.) etc. according to mobile terminal 100.In addition, memory 120 can To include high-speed random access memory, nonvolatile memory can also be included, a for example, at least disk memory is dodged Memory device or other volatile solid-state parts.

Input unit 130 can be used for receiving the number inputted or character information and generation and the user of mobile terminal 100 Setting and function control it is related key signals input.Specifically, input unit 130 may include touch panel 131 and other Input equipment 132.Touch panel 131, also referred to as touch screen collect user on it or neighbouring touch operation (for example are used Family uses the behaviour of any suitable object or attachment on touch panel 131 or near touch panel 131 such as finger, stylus Make), and corresponding attachment device is driven according to preset formula.Optionally, touch panel 131 may include that touch detection fills It puts and two parts of touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation and bring Signal, transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and it is turned It changes contact coordinate into, then gives processor 180, and the order that processor 180 is sent can be received and performed.Furthermore, it is possible to Touch panel 131 is realized using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel 131, input unit 130 can also include other input equipments 132.Specifically, other input equipments 132 can include but unlimited One kind in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc. or It is a variety of.

Display unit 140 can be used for display by information input by user or be supplied to the information and mobile terminal of user 100 various menus.Display unit 140 may include display panel 141, optionally, liquid crystal display (Liquid may be used Crystal Display, LCD), the forms such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) Display panel 141 is configured.Further, touch panel 131 can cover display panel 141, when touch panel 131 detects After touch operation on or near it, processor 180 is sent to determine the type of touch event, is followed by subsequent processing 180 basis of device The type of touch event processes.Although in Fig. 10, touch panel 131 and display panel 141 are the portions independent as two Part realizes the input of mobile terminal 100 and input function, but in some embodiments it is possible to by touch panel 131 with it is aobvious Show that panel 141 is integrated and that realizes mobile terminal 100 outputs and inputs function.

Mobile terminal 100 may also include at least one sensor 150, for example, optical sensor, motion sensor and other Sensor.Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein, ambient light sensor can basis The light and shade of ambient light adjusts the brightness of display panel 141, proximity sensor can when mobile terminal 100 is moved in one's ear, Close display panel 141 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (one As be three axis) acceleration size, size and the direction of gravity are can detect that when static, can be used to identify 100 appearance of mobile terminal The application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating) of state, Vibration identification correlation function (such as pedometer, Tap) etc.；Gyroscope, barometer, hygrometer, thermometer, infrared ray sensor for can also configure as mobile terminal 100 etc. its His sensor, details are not described herein.

Voicefrequency circuit 160, loud speaker 161, microphone 162 can provide the audio interface between user and mobile terminal 100. The transformed electric signal of the audio data received can be transferred to loud speaker 161, is converted by loud speaker 161 by voicefrequency circuit 160 It is exported for voice signal；On the other hand, the voice signal of collection is converted to electric signal by microphone 162, is connect by voicefrequency circuit 160 Audio data is converted to after receipts, then after audio data output processor 180 is handled, it is such as another to be sent to through RF circuits 110 Audio data is exported to memory 120 to be further processed by one mobile terminal 100.

WiFi belongs to short range wireless transmission technology, and mobile terminal 100 can help user to receive and dispatch by WiFi module 170 Email, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Figure 10 Show WiFi module 170, but it is understood that, and must be configured into for mobile terminal 100 is not belonging to, it completely can root It is omitted in the range for the essence for not changing invention according to needs.

Processor 180 is the control centre of mobile terminal 100, utilizes various interfaces and the entire mobile terminal of connection 100 various pieces are stored by running or performing the software program being stored in memory 120 and/or module and call Data in memory 120 perform the various functions of mobile terminal 100 and processing data, so as to be carried out to mobile terminal 100 Integral monitoring.Optionally, processor 180 may include one or more processing units；Preferably, processor 180 can integrate application Processor and modem processor, wherein, the main processing operation system of application processor, user interface and application program etc., Modem processor mainly handles wireless communication.It is understood that above-mentioned modem processor can not also be integrated into In processor 180.

Mobile terminal 100 further includes the power supply 190 (such as battery) powered to all parts, it is preferred that power supply can lead to Cross power-supply management system and processor 180 be logically contiguous, so as to by power-supply management system realize management charging, electric discharge and The functions such as power managed.

It is appreciated that structure shown in Fig. 10 is only to illustrate, mobile terminal 100 may also include it is more than shown in Fig. 8 or The less component of person has the configuration different from shown in Figure 10.Hardware, software may be used in each component shown in Figure 10 Or combination is realized.

It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight Point explanation is all difference from other examples, and just to refer each other for identical similar part between each embodiment.

The computer program production of the control method of the random access that the embodiment of the present invention is provided, device and mobile terminal Product, the computer readable storage medium including storing program code, the instruction that said program code includes can be used for before performing Method described in the embodiment of the method for face, specific implementation can be found in embodiment of the method, and details are not described herein.

If the function is realized in the form of SFU software functional unit and is independent product sale or in use, can be with It is stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially in other words The part contribute to the prior art or the part of the technical solution can be embodied in the form of software product, the meter Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be People's computer, server or network equipment etc.) perform all or part of the steps of the method according to each embodiment of the present invention. And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.

Finally it should be noted that：Embodiment described above, only specific embodiment of the invention, to illustrate the present invention Technical solution, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light It is readily conceivable that variation or equivalent replacement is carried out to which part technical characteristic；And these modifications, variation or replacement, do not make The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

The embodiment of the present invention further discloses：

A1. a kind of control method of random access, the method are applied to mobile terminal, including：

When the mobile terminal is to first community initiating random access procedure, judge whether to be successfully accessed first community High standard network；

If not, the reselecting parameters of the first community are adjusted, to reduce the probability that the first community is selected；

Re-selecting cell obtains second community；

To the second community initiating random access procedure, to access the high standard network of the second community.

A2. the step of method according to A1, the reselecting parameters of the adjustment first community, including：

The reference parameter of the first community is reseted, to reduce the priority of the first community；The reference parameter packet It includes and receives power and/or signal quality.

A3. the method according to A2, it is described reset the first community reference parameter the step of, including：

The reference parameter of the first community is subtracted to the bias of setting, the bias is more than 0；

Alternatively, the reference parameter of the first community to be multiplied by the weights of setting, the weights are less than 1.

A4. the step of method according to A1, the reselecting parameters of the adjustment first community, including：

Reduce the priority of the specified frequency point of the first community.

A5. after the step of method according to A1, the reselecting parameters of the adjustment first community, the method It further includes：

Start timing；

When reaching setting duration, restore the reselecting parameters of the first community.

A6. the method according to A5, it is described to include to the second community initiating random access procedure：In the setting In duration, to the second community initiating random access procedure.

A7. the method according to A1, the re-selecting cell, the step of obtaining second community, including：According to candidate cell In each cell reselecting parameters, optimal cell is selected, as second community.

A8. the method according to A1, it is described when the mobile terminal is to first community initiating random access procedure, sentence Disconnected the step of whether being successfully accessed the high standard network of first community, including：

When the mobile terminal sends the specified message in random access procedure to the first community, monitoring does not receive To the parameter of measurement of the corresponding response message of the specified message；

If the parameter of measurement reaches predetermined threshold value, the high standard network failure of the access first community is determined.

A9. the method according to A8, if the random access that the mobile terminal is initiated to the first community Process is based on competition mechanism, and the specified message is random access request message；

If the random access procedure that the mobile terminal is initiated to the first community is based on non-competitive mechanism, institute Specified message is stated as contention resolution message.

A10. the method according to A9, the method further include：

Detect whether to preserve the random access code of the first community；

If so, initiate the random access procedure based on competition mechanism to the first community；Otherwise, it is small to described first Initiate the random access procedure based on non-competitive mechanism in area.

A11. the method according to A8, the parameter of measurement include：It is the transmission times of the specified message, described specified The transmission of message takes turns number or from the delivery time of the first specified message to the duration of current time；Wherein, the hair It is preset value to send the time span often taken turns in wheel number.

A12. the method according to A8, the threshold value correspond to when being fallen after rise less than the mobile terminal to low standard network Threshold value.

B13. a kind of control device of random access, described device are applied to mobile terminal, including：

Judgment module, for when the mobile terminal is to first community initiating random access procedure, judging whether success Access the high standard network of first community；

Parameter adjustment module, if for not being successfully accessed the high standard network of first community, adjustment described first is small The reselecting parameters in area, to reduce the probability that the first community is selected；

Gravity treatment module for re-selecting cell, obtains second community；

AM access module, for the second community initiating random access procedure, being made with accessing the high of the second community Formula network.

B14. the device according to B13, the parameter adjustment module, is additionally operable to：

B15. the device according to B14, the gravity treatment module, is additionally operable to：

B16. the device according to B13, the parameter adjustment module, is additionally operable to：

Reduce the priority of the specified frequency point of the first community.

B17. the device according to B13, described device further include：

Timing module, for starting timing；

Parameter recovery module, for when reaching setting duration, restoring the reselecting parameters of the first community.

B18. the device according to B17, the AM access module, is additionally operable to：In the setting duration, to described second Cell initiating random access procedure.

B19. the device according to B13, the gravity treatment module, is additionally operable to：According to the weight of cell each in candidate cell Parameter is selected, optimal cell is selected, as second community.

B20. the device according to B13, the judgment module, is additionally operable to：

B21. the device according to B20, if the mobile terminal described connects at random to what the first community was initiated Enter process and be based on competition mechanism, the specified message is random access request message；

B22. the device according to B21, described device further include：

Monitoring modular, for detecting whether preserving the random access code of the first community；

If for preserving the random access code of the first community, base is initiated to the first community for initiation module In the random access procedure of competition mechanism；Otherwise, the random access procedure based on non-competitive mechanism is initiated to the first community.

B23. the device according to B20, the parameter of measurement include：The transmission times of the specified message, the finger Determine the transmission wheel number of message or from the delivery time of the first specified message to the duration of current time；Wherein, it is described It is preset value to send the time span often taken turns in wheel number.

B24. the device according to B20, the threshold value are fallen after rise less than the mobile terminal to during low standard network pairs The threshold value answered.

C25. a kind of mobile terminal, the mobile terminal include memory and processor, and the memory is used to store Processor is supported to perform the program of any one of A1 to A12 the methods, the processor is configurable for performing the storage The program stored in device.

D26. a kind of computer storage media is soft for saving as computer used in any one of B13 to B24 described devices Part instructs.

Claims

1. a kind of control method of random access, which is characterized in that the method is applied to mobile terminal, including：

When the mobile terminal is to first community initiating random access procedure, judge whether to be successfully accessed the high system of first community Formula network；

Re-selecting cell obtains second community；

2. the according to the method described in claim 1, it is characterized in that, step of the reselecting parameters of the adjustment first community Suddenly, including：

The reference parameter of the first community is reseted, to reduce the priority of the first community；The reference parameter includes connecing Receive power and/or signal quality.

3. the according to the method described in claim 2, it is characterized in that, step of the reference parameter for reseting the first community Suddenly, including：

4. the according to the method described in claim 1, it is characterized in that, step of the reselecting parameters of the adjustment first community Suddenly, including：

Reduce the priority of the specified frequency point of the first community.

5. according to the method described in claim 1, it is characterized in that, the step of the reselecting parameters of the adjustment first community Later, the method further includes：

Start timing；

It is 6. according to the method described in claim 5, it is characterized in that, described to the second community initiating random access procedure packet It includes：In the setting duration, to the second community initiating random access procedure.

7. according to the method described in claim 1, it is characterized in that, the re-selecting cell, the step of obtaining second community, packet It includes：According to the reselecting parameters of cell each in candidate cell, optimal cell is selected, as second community.

8. a kind of control device of random access, which is characterized in that described device is applied to mobile terminal, including：

Judgment module, for when the mobile terminal is to first community initiating random access procedure, judging whether to be successfully accessed The high standard network of first community；

If parameter adjustment module for not being successfully accessed the high standard network of first community, adjusts the first community Reselecting parameters, to reduce the probability that the first community is selected；

Gravity treatment module for re-selecting cell, obtains second community；

AM access module, for the second community initiating random access procedure, to access the high standard net of the second community Network.

9. a kind of mobile terminal, which is characterized in that the mobile terminal includes memory and processor, and the memory is used for The program of any one of processor perform claim requirement 1 to 7 the method is supported in storage, and the processor is configurable for performing The program stored in the memory.

10. a kind of computer storage media, which is characterized in that for saving as the computer used in claim 9 described device Software instruction.