CN106454715A - Returning method and device after offline of private network in high-speed mobile scene and terminal - Google Patents
Returning method and device after offline of private network in high-speed mobile scene and terminal Download PDFInfo
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- CN106454715A CN106454715A CN201510471257.XA CN201510471257A CN106454715A CN 106454715 A CN106454715 A CN 106454715A CN 201510471257 A CN201510471257 A CN 201510471257A CN 106454715 A CN106454715 A CN 106454715A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a returning method and device after offline of a private network in a high-speed mobile scene and a terminal. The method comprises: detecting the type of a district at present; when detecting the current district is off from a private network to a public network area, determining the current mobile speed state of the terminal; if the terminal is located at the high-speed mobile state in accordance with the high-speed mobile scene, searching the frequency points of the private network district according to the pre-stored private network district frequency point information list, and inquiring a target private network district satisfying a resident condition; and after the target private network district is inquired, initiating the resident process to the target private network district. The returning method and device after the offline of the private network in the high-speed mobile scene and the terminal can effectively solve the problem that the UE cannot return back to the private network after offline of the private network in the condition that the adjacent region relation between the private network and the public network along the highway is not configured so as to ensure the communication performance of the high-speed mobile terminal and improve the user experience.
Description
Technical field
The present invention relates to moving communicating field, after particularly relating to the private network off-grid under a kind of high-speed mobile scene
Return method, device and terminal.
Background technology
LTE (Long Term Evolution, Long Term Evolution) is 3G (Third Generation) Moblie (3G, 3rd
Generation follow-up evolution technology), with its high data rate, low time delay, optimize the network architecture,
The unique technology advantage such as bigger carrier bandwidths, has become as the new generation broadband mobile communication of main flow in the world
Standard.
At present, the construction scale of high-speed railway expands continuous, and the speed of service is also accelerated continuous.China is high
The speed of service of fast railway has much met and exceeded 300km/h, and the speed of service of magnetic suspension train then may be used
To reach 430km/h.The impact that high-speed mobile produces for mobile communications network, main inclusion：
1. high-speed mobile can produce larger Doppler frequency deviation, makes to produce frequency between Receiver And Transmitter by mistake
Difference, affects link performance, also on power system capacity and can cover generation impact；
2. high-speed mobile leads to the time of terminal persistent district too short, increases cell switching within the unit interval
Number of times, frequently switches and easily causes signaling storm；
3. the frequent switching of high velocity mobile users, can lead to dramatically increasing of cutting off rate, lead to Consumer's Experience to become
Difference；
4., because high-speed railway compartment is airtight, the penetration loss in therefore compartment will have influence on signal covering quality.
Therefore, for ensureing covering quality and the performance of high-speed railway mobile network, current high ferro region generally adopts height
For ferrum private network coverage mode, relatively high ferro private network, the mobile network covering general low speed scene is properly termed as
Public network.It is networking requirements specific for high-speed railway that high ferro private network covers, in cloth net mode and parameter configuration
Above have differences with public network, be used for meeting high-speed railway covering demand.
Meanwhile, in order to simplify the interoperability scene of public network and high ferro private network it is ensured that private network signal is in land
Leading position, current high ferro private network along the line and public network are generally using the network configuration of not interworking neighboring BS relationship
Strategy is it is therefore an objective to avoid the user equipment (User Equipment, UE) of high-speed mobile to enter from high ferro private network
Enter public network, reduce the communication performance of high velocity mobile users equipment, affect Consumer's Experience.
However, being limited to the construction scale of current high ferro private network, high ferro along the line it is possible that certain areas
Private network covers weaker, or terminal unit cannot catch larger Doppler in the case of high-speed mobile because of the time
Frequency deviation etc., and cause the user equipment of high-speed mobile to fall net from high ferro private network cell.
Due to the network configuration strategy of high ferro private network along the line and the not mutual matched adjacent zone of public network, from high ferro private network cell
The high velocity mobile users equipment entering public network cell is it may appear that cannot pass through cell reselection or switching etc. for a long time
Interoperability mode returns to high ferro private network.Now, cannot meet situations such as the network configuration of public network cell at a high speed again
The communication performance of mobile subscriber equipment requires, thus causing the problems such as frequently call drop, data go offline, or even
Cause terminal off-grid.Search net strategy based on existing, terminal just can be propped up according to itself after only having thorough off-grid
The frequency range held, carries out full frequency band search, again finds cell that can be resident, long off-grid, can not find
The private network cell of high velocity mobile users communication requirement can be met, Consumer's Experience will be had a strong impact on.
Content of the invention
It is an object of the invention to provide return method after a kind of private network off-grid under high-speed mobile scene, device
And terminal, in the case of private network along the line at a high speed and public network non-configuring adjacent cell relation, can be with effectively solving UE
After private network falls net, the problem of private network cannot be returned to for a long time, thus ensureing the communication of the terminal of high-speed mobile
Performance, improves Consumer's Experience.
For reaching above-mentioned purpose, after embodiments of the invention provide the private network off-grid under a kind of high-speed mobile scene
Return method, methods described includes：
Detection is presently in the cell type of cell；
When current area is detected public network cell being disengaged to by private network cell, judge described terminal when reach
Dynamic speed state；Wherein, described private network cell refers to the cell of high ferro private network network's coverage area, described public affairs
Net cell refers to the cell of general network overlay area；
If described terminal is in the high-speed moving state meeting high-speed mobile scene, special according to prestore
Net subdistrict frequency point information list searches for the frequency of private network cell, and inquiry meets the target private network cell of resident condition；
After inquiring target private network cell, initiate resident process to described target private network cell.
Wherein, methods described also includes：
After inquiry target private network cell failure or the failure of resident target private network cell, according between predetermined period
Next every the current translational speed state entering described terminal judges the cycle, returns the described terminal of described judgement
Current translational speed state step.
Wherein, after inquiry target private network cell failure or the failure of resident target private network cell, methods described
Also include：
By the first rolling counters forward once；
Obtain the current count numerical value of described first enumerator, and be compared with default first threshold value；
When the current count numerical value of described first enumerator is more than or equal to described first threshold value, by week
Period judges the period distances in cycle every adjusting parameter to next of the current translational speed state of described terminal
It is adjusted, extends described period distances, return the described current translational speed shape judging described terminal afterwards
The step of state；Otherwise, the step directly returning the described current translational speed state judging described terminal.
Wherein, methods described also includes：
If described terminal is in the low mobility state not meeting high-speed mobile scene, according between predetermined period
Next every the current translational speed state entering described terminal judges the cycle, returns the described terminal of described judgement
Current translational speed state step.
Wherein, if described terminal is in the low mobility state not meeting high-speed mobile scene, methods described is also
Including：
By the second rolling counters forward once；
Obtain the current count numerical value of described second enumerator, and be compared with default second threshold value；
Described second enumerator current count numerical value be less than or equal to described second threshold value when, then according to
Next of the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, sentences described in return
The step of the current translational speed state of described terminal of breaking；Otherwise, flow process terminates.
Wherein, when judging that described terminal is in the high-speed moving state meeting high-speed mobile scene, described side
Method also includes：
Monitoring terminal whether there is the state of circuit domain dropping, when monitoring terminal in circuit domain dropping, root
Search for the frequency of private network cell according to the private network subdistrict frequency point information list of storage, inquiry meets the mesh of resident condition
Mark private network cell, initiates resident process to described target private network cell；Or obtain all cells searching
System information SIB message, the random access parameter in described SIB message represents that described cell is special
During net cell, initiate resident process to described cell.
Wherein, described detection is presently in the step of the cell type of cell and includes：
Obtain the SIB message being presently in cell；
Extract the random access parameter in described SIB message, judged by the value of described random access parameter
It is presently in the cell type of cell.
Wherein, in the step of the cell type that detection is presently in cell, quick return after described off-grid
Method also includes：
When the cell type being presently in cell is detected for private network cell, obtain the frequency of described private network cell
The frequency point information of the private network adjacent cell of point information and described private network cell；
If the frequency not comprising described private network cell in the described private network subdistrict frequency point information list prestoring
The frequency point information of the private network adjacent cell of information and described private network cell, then believe the frequency of described private network cell
The frequency point information of the private network adjacent cell of breath and described private network cell increases to described private network subdistrict frequency point information
In list.
Wherein, the described current translational speed state judging described terminal, including：
Obtain the last Doppler frequency deviation estimated value of current time, and compare with default 3rd threshold value,
If described Doppler frequency deviation estimated value is more than described 3rd threshold value it is determined that described terminal is in high-speed mobile
State；Otherwise it is determined that described terminal is in low mobility state；Or
Obtain the residence time of described terminal each cell in the preset time period including current time, and
Compare with default 4th threshold value, if arbitrary described residence time be less than described 4th threshold value it is determined that
Described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；Or
Obtain the number of times of described terminal gravity treatment or switching cell in the preset time period including current time
Numerical value, and compare with default 5th threshold value, if described number of times numerical value is more than described 5th threshold value,
Determine that described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；
Or
Obtain the translational speed of described terminal, and compare with default 6th threshold value, if described translational speed
More than described 6th threshold value it is determined that described terminal is in high-speed moving state；Otherwise it is it is determined that described
Terminal is in low mobility state.
Take off for reaching above-mentioned purpose embodiments of the invention and additionally providing a kind of private network under high-speed mobile scene
Return mechanism after net, is applied to a terminal, and described device includes：
Detection module, is presently in the cell type of cell for detection；
Judge module, for when current area is detected and being disengaged to public network cell by private network cell, judging institute
State the current translational speed state of terminal；Wherein, described private network cell refers to high ferro private network network's coverage area
Cell, described public network cell refers to the cell of general network overlay area；
Enquiry module, if be in the high-speed moving state meeting high-speed mobile scene, root for described terminal
Search for the frequency of private network cell according to the private network subdistrict frequency point information list prestoring, inquiry meets resident condition
Target private network cell；
First resident module, after being used for inquiring target private network cell, initiates to stay to described target private network cell
Stay process.
Wherein, described device also includes：
First processing module, in inquiry target private network cell failure or the failure of resident target private network cell
Afterwards, next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step returning the described current translational speed state judging described terminal.
Wherein, described first processing module includes：
First counting submodule, for by the first rolling counters forward once；
First comparison sub-module, for obtaining the current count numerical value of described first enumerator, and with default
First threshold value is compared；
First process submodule, is more than or equal to described for the current count numerical value in described first enumerator
During the first threshold value, by period distances adjusting parameter to the current translational speed state of described terminal next
The period distances in judgement cycle are adjusted, and extend described period distances, return described judgement described end afterwards
The step of the current translational speed state at end；Otherwise, directly return the described current movement judging described terminal
The step of speed state.
Wherein, described device also includes：
Second processing module, if being in, for described terminal, the low mobility state not meeting high-speed mobile scene,
Then next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step of the described current translational speed state judging described terminal.
Wherein, described Second processing module includes：
Second counting submodule, for by the second rolling counters forward once；
Second comparison sub-module, for obtaining the current count numerical value of described second enumerator, and with default
Second threshold value is compared；
Second processing submodule, is less than or equal to described for the current count numerical value in described second enumerator
During the second threshold value, then according to predetermined period be spaced enter described terminal current translational speed state next
The judgement cycle, the step returning the described current translational speed state judging described terminal；Otherwise, flow process knot
Bundle.
Wherein, described device also includes：
Second resident module, whether there is the state of circuit domain dropping, when monitoring terminal for monitoring terminal
In circuit domain dropping, the private network subdistrict frequency point information list according to storage searches for the frequency of private network cell, looks into
Ask the target private network cell meeting resident condition, initiate resident process to described target private network cell；Or obtain
Take the system information SIB message of all cells searching, the Stochastic accessing ginseng in described SIB message
When number represents described cell for private network cell, initiate resident process to described cell.
Wherein, described detection module includes：
First acquisition submodule, for obtaining the SIB message being presently in cell；
Judging submodule, for extracting the random access parameter in described SIB message, is connect at random by described
The value entering parameter judges to be presently in the cell type of cell.
Wherein, described detection module also includes：
Second acquisition submodule, for when detect the cell type being presently in cell be private network cell when,
Obtain the frequency point information of described private network cell and the frequency point information of the private network adjacent cell of described private network cell；
3rd process submodule, if do not comprise in the described private network subdistrict frequency point information list that prestores
The frequency point information of the private network adjacent cell of the frequency point information of described private network cell and described private network cell, then by institute
State the frequency point information of private network cell and the frequency point information of the private network adjacent cell of described private network cell increases to institute
State in private network subdistrict frequency point information list.
Wherein, described judge module includes：
Fourth process submodule, for obtaining the Doppler frequency deviation estimated value of current time the last time, and with
Default 3rd threshold value compares, if described Doppler frequency deviation estimated value is more than described 3rd threshold value, really
Fixed described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；
5th process submodule, every in the preset time period including current time for obtaining described terminal
The residence time of individual cell, and compare with default 4th threshold value, if arbitrary described residence time is less than institute
State the 4th threshold value it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described end
In low mobility state；
6th process submodule, for obtaining described terminal weight in the preset time period including current time
Choosing or the number of times numerical value of switching cell, and compare with default 5th threshold value, if described number of times numerical value is more than
Described 5th threshold value is it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described terminal
It is in low mobility state；
7th process submodule, for obtaining the translational speed of described terminal, and with default 6th threshold value
Relatively, if described translational speed is more than described 6th threshold value it is determined that described terminal is in high-speed mobile shape
State；Otherwise it is determined that described terminal is in low mobility state.
For reaching above-mentioned purpose, embodiments of the invention additionally provide a kind of terminal, including high as above
The return mechanism after private network off-grid under fast mobile context.
The having the beneficial effect that of the technique scheme of the present invention：
The return method after private network off-grid under the high-speed mobile scene of the embodiment of the present invention, can go to detect first
The type of the cell that terminal is presently in, when the current area of terminal is disengaged to public network cell by private network cell,
Illustrate that terminal already out high ferro private network enters public network cell.So now, user may be no longer on moving at a high speed
Dynamic scene, public network cell is to ensure its communication performance enough, but for still under high-speed mobile scene
User, public network cell is insufficient to ensure its communication performance, returns to private network cell, therefore is accomplished by sentencing
Disconnected terminal, whether also under high-speed mobile scene, judges the current translational speed state of terminal.For still in
The terminal of the high-speed moving state of high-speed mobile scene is so that it may the private network subdistrict frequency point that prestored according to terminal
Information list, the frequency of search private network cell, inquiry meets the target private network cell of resident condition, inquires
After target private network cell, initiate resident process to target private network cell.Due to private network subdistrict frequency point information list
In have recorded the frequency point information of high ferro private network cell, directly by the search of list can be searched meet resident
The target private network cell of condition, and fall backward entrance public network cell in terminal from private network to its resident process of initiation
Afterwards, by searching for private network cell that can be resident in private network subdistrict frequency point information list, it is still in high-speed mobile
The terminal of the high-speed moving state of scene realizes the quick purpose returning high ferro private network cell it is ensured that terminal
Communication performance, improves Consumer's Experience.
Brief description
Fig. 1 represent the private network off-grid under the high-speed mobile scene of the embodiment of the present invention after return method step
Rapid flow chart；
Fig. 2 represent the private network off-grid under the high-speed mobile scene of the embodiment of the present invention after return method tool
Body flow chart of steps one；
Fig. 3 represent the private network off-grid under the high-speed mobile scene of the embodiment of the present invention after return method tool
Body flow chart of steps two；
Fig. 4 represent the private network off-grid under the high-speed mobile scene of the embodiment of the present invention after return mechanism knot
Composition.
Specific embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
The present invention is directed to existing searching and nets strategy, just can be supported according to itself after the only thorough off-grid of terminal
Frequency range, carries out full frequency band search and again finds cell that can be resident, long off-grid, can not find and can meet
The private network cell of high velocity mobile users communication requirement, the problems such as user experience difference, provides and a kind of moves at a high speed
The return method after private network off-grid under dynamic scene, in high ferro private network along the line and public network non-configuring adjacent cell relation
In the case of can realize terminal and fall to be quickly returning to private network from private network backward, thus ensureing the logical of high speed mobile terminal
Letter performance, improves Consumer's Experience.
As shown in figure 1, the return side after private network off-grid under a kind of high-speed mobile scene of the embodiment of the present invention
Method, methods described includes：
Step 11, detection is presently in the cell type of cell；
Step 12, when current area is detected and being disengaged to public network cell by private network cell, judges described end
The current translational speed state at end；Wherein, described private network cell refers to the little of high ferro private network network's coverage area
Area, described public network cell refers to the cell of general network overlay area；
Step 13, if described terminal is in the high-speed moving state meeting high-speed mobile scene, according to pre-
The private network subdistrict frequency point information list first storing searches for the frequency of private network cell, and inquiry meets the mesh of resident condition
Mark private network cell；
Step 14, after inquiring target private network cell, initiates resident process to described target private network cell.
According to above-mentioned steps, in order to understand whether whether terminal occur the situation of off-grid under high-speed mobile scene,
The type of the cell that detection terminal is presently in as step 11, can be gone first.The current area of terminal by
When private network cell is disengaged to public network cell, illustrate that terminal already out high ferro private network enters public network cell, then this
When, user may be no longer on high-speed mobile scene, and public network cell is to ensure its communication performance enough, but
For still in the user under high-speed mobile scene, public network cell is insufficient to ensure its communication performance, weight
New return private network cell, therefore be accomplished by judging terminal whether also under high-speed mobile scene, such as step 12,
Judge the current translational speed state of terminal.End for the high-speed moving state still in high-speed mobile scene
End, afterwards if step 13 and 14 is so that it may the private network subdistrict frequency point information list that prestored according to terminal,
The frequency of search private network cell, inquiry meets the target private network cell of resident condition, inquires target private network little
Qu Hou, initiates resident process to target private network cell.Have recorded height due in private network subdistrict frequency point information list
The frequency point information of ferrum private network cell, directly by searching, to the search of list, the target meeting resident condition
Private network cell, and initiate resident process to it.
So, the method for the embodiment of the present invention, after terminal falls net entrance public network cell from private network, by special
The private network cell that in net subdistrict frequency point information list, search can be resident, is the high speed still in high-speed mobile scene
The terminal of mobile status realizes the quick purpose returning high ferro private network cell it is ensured that the communication performance of terminal,
Improve Consumer's Experience.
It is to be understood that the covering quality for guarantee high ferro network and performance, the private network in high ferro region and public affairs
Net has differences on network design and parameter configuration, and therefore terminal can be by reading the modes such as Cell Broadcast CB
Obtain configuration parameter to judge oneself residing cell type.In embodiments of the invention, step 11 includes：
Step 111, obtains the SIB message being presently in cell；
Step 112, extracts the random access parameter in described SIB message, by described random access parameter
Value judge to be presently in the cell type of cell.
The random access parameter of private network such as Stochastic accessing high speed labelling (Highspeedflag) would generally be configured to
Ture, therefore terminal extract random access parameter therein after acquisition is presently in cell SIB message, lead to
The value crossing Highspeedflag can determine whether to be presently in the cell type of cell.
It will be appreciated that terminal to target private network cell initiate resident process not necessarily can resident become
Work(, or even the target private network cell meeting condition cannot be inquired.For this reason, the method for the embodiment of the present invention
Also include：
Step 15, after inquiry target private network cell failure or the failure of resident target private network cell, according to
Next of the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, sentences described in return
The step of the current translational speed state of described terminal of breaking.
So, judge the current translational speed state of terminal step be according to one predetermined period interval execution,
So after inquiry target private network cell failure or the failure of resident target private network cell, according to this period distances
Enter next judgement cycle, continue to judge the current translational speed state of described terminal.The setting of period distances
Avoid some exopathogenic factors interference temporarily cannot resident successful problem, be terminal return private network cell provide
Bigger probability.
However, due to the impact such as landform, weather, on the high ferro circuit of some local sections, private network covering is weaker
Or there is covering blind spot, predetermined period interval is shorter to cause power consumption of terminal to the search of private network frequency.Above-mentioned
On the basis of embodiment, as shown in Fig. 2 in the embodiment of the present invention inquiry target private network cell failure or
After resident target private network cell failure, methods described also includes：
Step 151, by the first rolling counters forward once；
Step 152, obtain described first enumerator current count numerical value, and with default first threshold value
It is compared；
Step 153, is more than or equal to described first threshold value in the current count numerical value of described first enumerator
When, the cycle is judged to next of the current translational speed state of described terminal by period distances adjusting parameter
Period distances are adjusted, and extend described period distances, and return the described terminal of described judgement afterwards works as reach
The step of dynamic speed state；Otherwise, directly return the described current translational speed state judging described terminal
Step.
In this embodiment, judge that the period distances of the current translational speed state of terminal can pass through period distances
Adjusting parameter controls, and arranges the first threshold value as criterion, in the current count numerical value of the first enumerator
More than or equal to during the first threshold value it is believed that there is the higher situation of power consumption, by period distances adjusting parameter
The period distances judging the cycle to next are adjusted, this period distances of proper extension, are then back to judge institute
The step stating the current translational speed state of terminal, continues to judge, if being certainly also not up to the first threshold value,
It is not required to adjust period distances, the step directly returning the current translational speed state judging described terminal, with former
Period distances carry out this step.This embodiment can carry out the flexible configuration of period distances according to practical situation,
Avoid unnecessary power consumption.
Wherein, the control of period distances can also be controlled by intervalometer, by being also capable of to intervalometer
The flexible configuration of period distances.Adjustment for period distances not only to be completed by above-mentioned implementation,
Also other ways of realization can be passed through, numerous to list herein.
After judging the current translational speed state of described terminal, high ferro deceleration etc. is in particular cases likely to
It is in not meeting the low mobility state of high-speed mobile scene to present terminal, therefore, in above-described embodiment
On the basis of, in the return method after private network off-grid under the high-speed mobile scene of the embodiment of the present invention, described side
Method also includes：
Step 16, if described terminal is in the low mobility state not meeting high-speed mobile scene, according to
Next of the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, sentences described in return
The step of the current translational speed state of described terminal of breaking.
Inevitably, present terminal be in the low mobility state not meeting high-speed mobile scene it is also possible to
It is that user leaves that high ferro turns or high ferro circuit nearby returns public network cell after ordinarily resident is strayed into private network cell, that
Now avoid the need for carrying out repeating judging, so, on the basis of above-described embodiment, as shown in figure 3,
In the return method after private network off-grid under the high-speed mobile scene of the embodiment of the present invention, if described terminal is in
Do not meet the low mobility state of high-speed mobile scene, methods described also includes：
Step 161, by the second rolling counters forward once；
Step 162, obtain described second enumerator current count numerical value, and with default second threshold value
It is compared；
Step 163, is less than or equal to described second threshold value in the current count numerical value of described second enumerator
When, then next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle,
The step returning the described current translational speed state judging described terminal；Otherwise, flow process terminates.
In this embodiment, as criterion, currently judge that terminal is in does not meet height to setting the second threshold value
During the low mobility state of fast mobile context, first pass through the second rolling counters forward once.In the second counting
The current count numerical value of device makes terminal be in it is believed that there is accidental situation when being less than or equal to the second threshold value
Low mobility state, in addition it is also necessary to repeat to judge, is then back to judge the current translational speed state of described terminal
Step, continue judge, certainly reach the second threshold value, you can resident to think that user has been no longer necessary to
Private network cell, flow process terminates.
Certainly, the first enumerator in above-described embodiment and the second enumerator be to ensure the accuracy recording,
Initial value is all zero.Separately, the first enumerator and the second enumerator can also pass through in a particular application same
Enumerator completes its function.
Additionally, under high ferro scene, terminal completes after circuit domain dropping CSFB calls although not having private network
Cell is disengaged to public network cell, but in order to ensure its follow-up communication performance, need resident to private network cell.
On the basis of above-described embodiment, in the embodiment of the present invention, meet high-speed mobile when judging that described terminal is in
During the high-speed moving state of scene, methods described also includes：
Step 17, monitoring terminal whether there is the state of circuit domain dropping, when monitoring terminal in circuit domain
During falling, the private network subdistrict frequency point information list according to storage searches for the frequency of private network cell, and inquiry satisfaction is stayed
Stay the target private network cell of condition, initiate resident process to described target private network cell；Or obtain and search
All cells system information SIB message, the random access parameter in described SIB message represents institute
When stating cell for private network cell, initiate resident process to described cell.
Under high ferro scene, after terminal completes CSFB calling, can be according to the private network subdistrict frequency point letter of storage
The frequency of breath list search private network cell, inquiry meets the target private network cell of resident condition, to target private network
Cell initiates resident process；It is of course also possible to the direct all cells of removal search (include private network cell and public network
Cell) search private network cell that can be resident, obtain the SIB message of all cells searching, in SIB
When random access parameter in message represents described cell for private network cell, initiate resident process to this cell.
By the above it is recognised that the private network subdistrict frequency point information list of terminal pre-stored provides fast quick checking
Look for can resident private network cell foundation.Preferably, this private network subdistrict frequency point information list is according to high ferro network
Deployment scenario storage, but, because network has deviation with theoretical value in actual applications, this is special
Net subdistrict frequency point information list can not meet needs.On the basis of above-described embodiment, the present invention is real
Apply in example, step 11 also includes：
Step 113, when the cell type being presently in cell is detected for private network cell, obtains described special
The frequency point information of the private network adjacent cell of the frequency point information of net cell and described private network cell；
Step 114, if it is little not comprise described private network in the described private network subdistrict frequency point information list prestoring
The frequency point information of the private network adjacent cell of the frequency point information in area and described private network cell, then by described private network cell
Frequency point information and the frequency point information of private network adjacent cell of described private network cell increase to described private network cell
In frequency point information list.
So, when cell residing for terminal is private network cell, will go to obtain the frequency point information of this private network cell with
And its frequency point information of private network adjacent cell, thus realizing the renewal to private network subdistrict frequency point information list, can
More excellent selection can be resident private network cell, effectively improve the search efficiency of private network cell.
In embodiments of the present invention, in step 12, judge the current translational speed state of described terminal, bag
Include：
Step 121a, obtains the last Doppler frequency deviation estimated value of current time, and with default the
Three threshold values compare, if described Doppler frequency deviation estimated value is more than described 3rd threshold value it is determined that described end
End is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；Or
Step 121b, obtains described terminal each cell in the preset time period including current time
Residence time, and compare with default 4th threshold value, if arbitrary described residence time is less than described 4th
Limit value is it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low speed move
Dynamic state；Or
Step 121c, obtains gravity treatment or the switching in the preset time period including current time of described terminal
The number of times numerical value of cell, and compare with default 5th threshold value, if described number of times numerical value is more than the described 5th
Threshold value is it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low speed
Mobile status；Or
Step 121d, is obtained the translational speed of described terminal, and is compared with default 6th threshold value, if
Described translational speed is more than described 6th threshold value it is determined that described terminal is in high-speed moving state；Conversely,
Then determine that described terminal is in low mobility state.
In above-mentioned content, can preset by Doppler frequency deviation estimated value, in include current time one
The residence time of each cell, gravity treatment or switching in the preset time period including current time in time period
The translational speed of the number of times numerical value of cell and terminal is realizing sentencing of the current translational speed state to terminal
Disconnected, certainly, above-mentioned implementation is only preferably to realize, and the mode that other enable is also guarantor of the present invention
The scope of shield, numerous to list herein.Wherein, the acquisition of translational speed can be by starting GPS location
Obtained using measurement etc. function, determine the mobile status that terminal is in.
In sum, the return method after the private network off-grid under the high-speed mobile scene of the embodiment of the present invention, deposits
In advantages below：
1st, carry out full frequency band search without waiting for the thorough support of terminal backward, be disengaged to public affairs at it from private network cell
After net cell, you can move velocity estimated and searched by the private network cell of private network subdistrict frequency point information list
Rope process, thus ensured the communication performance being located at high ferro scene；
2nd, real-time update can be carried out to private network subdistrict frequency point information list during terminal resident private network cell, effectively
Improve the search efficiency of private network cell；
3rd, after terminal detects and enters public network cell from high ferro private network cell, you can open and periodically move
Dynamic velocity estimated and private network cell search process, need not carry out full frequency band search after the thorough off-grid of terminal,
It is prevented effectively from the long-time off-grid of terminal or can not find private network cell, thus having ensured the terminal being located at high ferro scene
Communication performance, improves Consumer's Experience；
4th, when terminal judges are in public network and are in high-speed mobile, but search for resident high ferro dedicated cell several times
When unsuccessful, the period distances judging translational speed state can be adjusted flexibly, proper extension judges
Translational speed state and high ferro private network search cycle, user reduces power consumption of terminal；
5th, user or the feelings apart from the nearer ordinarily resident of high ferro circuit leaving high ferro station are taken into full account
Condition, is entered after high ferro private network with terminal, and leaving private network and entering public network is trigger condition, moves in conjunction with periodic
Dynamic velocity estimated, prepares whether detection terminal is under high-speed mobile scene；If continuous translational speed several times
After being judged as low speed, terminal will be closed periodic translational speed in time and be judged and private network cell searching, permissible
It is prevented effectively from the impact to low-speed mobile users, reduce power consumption of terminal and process complexity.
As shown in figure 4, after embodiments of the invention additionally provide the private network off-grid under a kind of high-speed mobile scene
Return mechanism, be applied to a terminal, described device includes：
Detection module 10, is presently in the cell type of cell for detection；
Judge module 20, for when current area is detected and being disengaged to public network cell by private network cell, sentencing
The current translational speed state of described terminal of breaking；Wherein, described private network cell refers to the high ferro private network network coverage
The cell in region, described public network cell refers to the cell of general network overlay area；
Enquiry module 30, if being in, for described terminal, the high-speed moving state meeting high-speed mobile scene,
Then search for the frequency of private network cell according to the private network subdistrict frequency point information list prestoring, inquiry meets resident
The target private network cell of condition；
First resident module 40, after being used for inquiring target private network cell, sends out to described target private network cell
Play resident process.
Wherein, described device also includes：
First processing module, in inquiry target private network cell failure or the failure of resident target private network cell
Afterwards, next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step returning the described current translational speed state judging described terminal.
Wherein, described first processing module includes：
First counting submodule, for by the first rolling counters forward once；
First comparison sub-module, for obtaining the current count numerical value of described first enumerator, and with default
First threshold value is compared；
First process submodule, is more than or equal to described for the current count numerical value in described first enumerator
During the first threshold value, by period distances adjusting parameter to the current translational speed state of described terminal next
The period distances in judgement cycle are adjusted, and extend described period distances, return described judgement described end afterwards
The step of the current translational speed state at end；Otherwise, directly return the described current movement judging described terminal
The step of speed state.
Wherein, described device also includes：
Second processing module, if being in, for described terminal, the low mobility state not meeting high-speed mobile scene,
Then next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step of the described current translational speed state judging described terminal.
Wherein, described Second processing module includes：
Second counting submodule, for by the second rolling counters forward once；
Second comparison sub-module, for obtaining the current count numerical value of described second enumerator, and with default
Second threshold value is compared；
Second processing submodule, is less than or equal to described for the current count numerical value in described second enumerator
During the second threshold value, then according to predetermined period be spaced enter described terminal current translational speed state next
The judgement cycle, the step returning the described current translational speed state judging described terminal；Otherwise, flow process knot
Bundle.
Wherein, described device also includes：
Second resident module, whether there is the state of circuit domain dropping, when monitoring terminal for monitoring terminal
In circuit domain dropping, the private network subdistrict frequency point information list according to storage searches for the frequency of private network cell, looks into
Ask the target private network cell meeting resident condition, initiate resident process to described target private network cell；Or obtain
Take the system information SIB message of all cells searching, the Stochastic accessing ginseng in described SIB message
When number represents described cell for private network cell, initiate resident process to described cell.
Wherein, described detection module includes：
First acquisition submodule, for obtaining the SIB message being presently in cell；
Judging submodule, for extracting the random access parameter in described SIB message, is connect at random by described
The value entering parameter judges to be presently in the cell type of cell.
Wherein, described detection module also includes：
Second acquisition submodule, for when detect the cell type being presently in cell be private network cell when,
Obtain the frequency point information of described private network cell and the frequency point information of the private network adjacent cell of described private network cell；
3rd process submodule, if do not comprise in the described private network subdistrict frequency point information list that prestores
The frequency point information of the private network adjacent cell of the frequency point information of described private network cell and described private network cell, then by institute
State the frequency point information of private network cell and the frequency point information of the private network adjacent cell of described private network cell increases to institute
State in private network subdistrict frequency point information list.
Wherein, described judge module includes：
Fourth process submodule, for obtaining the Doppler frequency deviation estimated value of current time the last time, and with
Default 3rd threshold value compares, if described Doppler frequency deviation estimated value is more than described 3rd threshold value, really
Fixed described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；
5th process submodule, every in the preset time period including current time for obtaining described terminal
The residence time of individual cell, and compare with default 4th threshold value, if arbitrary described residence time is less than institute
State the 4th threshold value it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described end
In low mobility state；
6th process submodule, for obtaining described terminal weight in the preset time period including current time
Choosing or the number of times numerical value of switching cell, and compare with default 5th threshold value, if described number of times numerical value is more than
Described 5th threshold value is it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described terminal
It is in low mobility state；
7th process submodule, for obtaining the translational speed of described terminal, and with default 6th threshold value
Relatively, if described translational speed is more than described 6th threshold value it is determined that described terminal is in high-speed mobile shape
State；Otherwise it is determined that described terminal is in low mobility state.
The return mechanism after private network off-grid under the high-speed mobile scene of the embodiment of the present invention, in terminal from private network
Fall after entering public network cell backward, by searching for private network cell that can be resident in private network subdistrict frequency point information list,
It is the terminal realization quick return high ferro private network cell of the high-speed moving state still in high-speed mobile scene
Purpose, it is ensured that the communication performance of terminal, improves Consumer's Experience.
It should be noted that this device is the return after the private network off-grid applying under above-mentioned high-speed mobile scene
The device of method, the implementation of said method is applied to this device, also can reach identical technique effect.
Embodiments of the invention additionally provide a kind of terminal, including special under high-speed mobile scene as above
Return mechanism after net off-grid.
This terminal terminal from private network fall backward enter public network cell after, by private network subdistrict frequency point information list
Middle search can be resident private network cell, be that the terminal of high-speed moving state still in high-speed mobile scene is realized
The quick purpose returning high ferro private network cell, it is ensured that the communication performance of terminal, improves Consumer's Experience.
It should be noted that this terminal is the return after the private network off-grid applying under above-mentioned high-speed mobile scene
The terminal of device, the implementation of said apparatus is applied to this terminal, also can reach identical technique effect.
Need further exist for illustrate, this terminal described in this description include but is not limited to smart mobile phone,
Panel computer etc., and described many functional parts are all referred to as module, specifically to emphasize it
The independence of implementation.
In the embodiment of the present invention, module can be realized with software, so that by various types of computing devices.
For example, the executable code module of a mark can include one or more physics of computer instruction
Or logical block, for example, it can be built as object, process or function.Even so, being marked
The executable code knowing module need not be physically located together, but can include being stored in different positions
Different instructions, when being combined together in these command logics, it constitutes module and realizes this module
Regulation purpose.
The above is the preferred embodiment of the present invention it is noted that common skill for the art
For art personnel, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (19)
1. the return method after the private network off-grid under a kind of high-speed mobile scene, is applied to a terminal, and it is special
Levy and be, methods described includes：
Detection is presently in the cell type of cell；
When current area is detected public network cell being disengaged to by private network cell, judge described terminal when reach
Dynamic speed state；Wherein, described private network cell refers to the cell of high ferro private network network's coverage area, described public affairs
Net cell refers to the cell of general network overlay area；
If described terminal is in the high-speed moving state meeting high-speed mobile scene, special according to prestore
Net subdistrict frequency point information list searches for the frequency of private network cell, and inquiry meets the target private network cell of resident condition；
After inquiring target private network cell, initiate resident process to described target private network cell.
2. the return method after private network off-grid according to claim 1 is it is characterised in that described side
Method also includes：
After inquiry target private network cell failure or the failure of resident target private network cell, according between predetermined period
Next every the current translational speed state entering described terminal judges the cycle, returns the described terminal of described judgement
Current translational speed state step.
3. the return method after private network off-grid according to claim 2 is it is characterised in that inquiring about
After the failure of target private network cell or the failure of resident target private network cell, methods described also includes：
By the first rolling counters forward once；
Obtain the current count numerical value of described first enumerator, and be compared with default first threshold value；
When the current count numerical value of described first enumerator is more than or equal to described first threshold value, by week
Period judges the period distances in cycle every adjusting parameter to next of the current translational speed state of described terminal
It is adjusted, extends described period distances, return the described current translational speed shape judging described terminal afterwards
The step of state；Otherwise, the step directly returning the described current translational speed state judging described terminal.
4. the return method after private network off-grid according to claim 1 is it is characterised in that described side
Method also includes：
If described terminal is in the low mobility state not meeting high-speed mobile scene, according between predetermined period
Next every the current translational speed state entering described terminal judges the cycle, returns the described terminal of described judgement
Current translational speed state step.
5. the return method after private network off-grid according to claim 4, if described terminal is in be not inconsistent
Close the low mobility state of high-speed mobile scene, methods described also includes：
By the second rolling counters forward once；
Obtain the current count numerical value of described second enumerator, and be compared with default second threshold value；
Described second enumerator current count numerical value be less than or equal to described second threshold value when, then according to
Next of the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, sentences described in return
The step of the current translational speed state of described terminal of breaking；Otherwise, flow process terminates.
6. the return method after private network off-grid according to claim 1 judges it is characterised in that working as
When described terminal is in the high-speed moving state meeting high-speed mobile scene, methods described also includes：
Monitoring terminal whether there is the state of circuit domain dropping, when monitoring terminal in circuit domain dropping, root
Search for the frequency of private network cell according to the private network subdistrict frequency point information list of storage, inquiry meets the mesh of resident condition
Mark private network cell, initiates resident process to described target private network cell；Or obtain all cells searching
System information SIB message, the random access parameter in described SIB message represents that described cell is special
During net cell, initiate resident process to described cell.
7. the return method after private network off-grid according to claim 1 is it is characterised in that described inspection
The step surveying the cell type being presently in cell includes：
Obtain the SIB message being presently in cell；
Extract the random access parameter in described SIB message, judged by the value of described random access parameter
It is presently in the cell type of cell.
8. the return method after private network off-grid according to claim 1 is it is characterised in that detecting
In the step of the cell type being presently in cell, after described off-grid, the quick method returning also includes：
When the cell type being presently in cell is detected for private network cell, obtain the frequency of described private network cell
The frequency point information of the private network adjacent cell of point information and described private network cell；
If the frequency not comprising described private network cell in the described private network subdistrict frequency point information list prestoring
The frequency point information of the private network adjacent cell of information and described private network cell, then believe the frequency of described private network cell
The frequency point information of the private network adjacent cell of breath and described private network cell increases to described private network subdistrict frequency point information
In list.
9. the return method after private network off-grid according to claim 1 is it is characterised in that described sentence
The current translational speed state of described terminal of breaking, including：
Obtain the last Doppler frequency deviation estimated value of current time, and compare with default 3rd threshold value,
If described Doppler frequency deviation estimated value is more than described 3rd threshold value it is determined that described terminal is in high-speed mobile
State；Otherwise it is determined that described terminal is in low mobility state；Or
Obtain the residence time of described terminal each cell in the preset time period including current time, and
Compare with default 4th threshold value, if arbitrary described residence time be less than described 4th threshold value it is determined that
Described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；Or
Obtain the number of times of described terminal gravity treatment or switching cell in the preset time period including current time
Numerical value, and compare with default 5th threshold value, if described number of times numerical value is more than described 5th threshold value,
Determine that described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；
Or
Obtain the translational speed of described terminal, and compare with default 6th threshold value, if described translational speed
More than described 6th threshold value it is determined that described terminal is in high-speed moving state；Otherwise it is it is determined that described
Terminal is in low mobility state.
10. the return mechanism after the private network off-grid under a kind of high-speed mobile scene, is applied to a terminal, and it is special
Levy and be, described device includes：
Detection module, is presently in the cell type of cell for detection；
Judge module, for when current area is detected and being disengaged to public network cell by private network cell, judging institute
State the current translational speed state of terminal；Wherein, described private network cell refers to high ferro private network network's coverage area
Cell, described public network cell refers to the cell of general network overlay area；
Enquiry module, if be in the high-speed moving state meeting high-speed mobile scene, root for described terminal
Search for the frequency of private network cell according to the private network subdistrict frequency point information list prestoring, inquiry meets resident condition
Target private network cell；
First resident module, after being used for inquiring target private network cell, initiates to stay to described target private network cell
Stay process.
Return mechanism after 11. private network off-grids according to claim 10 is it is characterised in that described
Device also includes：
First processing module, in inquiry target private network cell failure or the failure of resident target private network cell
Afterwards, next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step returning the described current translational speed state judging described terminal.
Return mechanism after 12. private network off-grids according to claim 11 is it is characterised in that described
First processing module includes：
First counting submodule, for by the first rolling counters forward once；
First comparison sub-module, for obtaining the current count numerical value of described first enumerator, and with default
First threshold value is compared；
First process submodule, is more than or equal to described for the current count numerical value in described first enumerator
During the first threshold value, by period distances adjusting parameter to the current translational speed state of described terminal next
The period distances in judgement cycle are adjusted, and extend described period distances, return described judgement described end afterwards
The step of the current translational speed state at end；Otherwise, directly return the described current movement judging described terminal
The step of speed state.
Return mechanism after 13. private network off-grids according to claim 10 is it is characterised in that described
Device also includes：
Second processing module, if being in, for described terminal, the low mobility state not meeting high-speed mobile scene,
Then next according to the current translational speed state of the described terminal of predetermined period interval entrance judges the cycle, returns
The step of the described current translational speed state judging described terminal.
Return mechanism after 14. private network off-grids according to claim 13 is it is characterised in that described
Second processing module includes：
Second counting submodule, for by the second rolling counters forward once；
Second comparison sub-module, for obtaining the current count numerical value of described second enumerator, and with default
Second threshold value is compared；
Second processing submodule, is less than or equal to described for the current count numerical value in described second enumerator
During the second threshold value, then according to predetermined period be spaced enter described terminal current translational speed state next
The judgement cycle, the step returning the described current translational speed state judging described terminal；Otherwise, flow process knot
Bundle.
Return mechanism after 15. private network off-grids according to claim 10 is it is characterised in that described
Device also includes：
Second resident module, whether there is the state of circuit domain dropping, when monitoring terminal for monitoring terminal
In circuit domain dropping, the private network subdistrict frequency point information list according to storage searches for the frequency of private network cell, looks into
Ask the target private network cell meeting resident condition, initiate resident process to described target private network cell；Or obtain
Take the system information SIB message of all cells searching, the Stochastic accessing ginseng in described SIB message
When number represents described cell for private network cell, initiate resident process to described cell.
Return mechanism after 16. private network off-grids according to claim 10 is it is characterised in that described
Detection module includes：
First acquisition submodule, for obtaining the SIB message being presently in cell；
Judging submodule, for extracting the random access parameter in described SIB message, is connect at random by described
The value entering parameter judges to be presently in the cell type of cell.
Return mechanism after 17. private network off-grids according to claim 10 is it is characterised in that described
Detection module also includes：
Second acquisition submodule, for when detect the cell type being presently in cell be private network cell when,
Obtain the frequency point information of described private network cell and the frequency point information of the private network adjacent cell of described private network cell；
3rd process submodule, if do not comprise in the described private network subdistrict frequency point information list that prestores
The frequency point information of the private network adjacent cell of the frequency point information of described private network cell and described private network cell, then by institute
State the frequency point information of private network cell and the frequency point information of the private network adjacent cell of described private network cell increases to institute
State in private network subdistrict frequency point information list.
Return mechanism after 18. private network off-grids according to claim 10 is it is characterised in that described
Judge module includes：
Fourth process submodule, for obtaining the Doppler frequency deviation estimated value of current time the last time, and with
Default 3rd threshold value compares, if described Doppler frequency deviation estimated value is more than described 3rd threshold value, really
Fixed described terminal is in high-speed moving state；Otherwise it is determined that described terminal is in low mobility state；
5th process submodule, every in the preset time period including current time for obtaining described terminal
The residence time of individual cell, and compare with default 4th threshold value, if arbitrary described residence time is less than institute
State the 4th threshold value it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described end
In low mobility state；
6th process submodule, for obtaining described terminal weight in the preset time period including current time
Choosing or the number of times numerical value of switching cell, and compare with default 5th threshold value, if described number of times numerical value is more than
Described 5th threshold value is it is determined that described terminal is in high-speed moving state；Otherwise it is determined that described terminal
It is in low mobility state；
7th process submodule, for obtaining the translational speed of described terminal, and with default 6th threshold value
Relatively, if described translational speed is more than described 6th threshold value it is determined that described terminal is in high-speed mobile shape
State；Otherwise it is determined that described terminal is in low mobility state.
A kind of 19. terminals are it is characterised in that include the high speed as described in any one of claim 10 to 18
The return mechanism after private network off-grid under mobile context.
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