CN108702667A - A kind of method and terminal of circuit domain dropping - Google Patents
A kind of method and terminal of circuit domain dropping Download PDFInfo
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- CN108702667A CN108702667A CN201780010134.3A CN201780010134A CN108702667A CN 108702667 A CN108702667 A CN 108702667A CN 201780010134 A CN201780010134 A CN 201780010134A CN 108702667 A CN108702667 A CN 108702667A
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- 238000000034 method Methods 0.000 title claims abstract description 110
- 238000004891 communication Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004904 shortening Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 17
- 238000005259 measurement Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 9
- 238000010295 mobile communication Methods 0.000 description 7
- 238000012163 sequencing technique Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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Abstract
The embodiment of the present application discloses a kind of method and terminal of circuit domain dropping, the search time for shortening circuit domain dropping process, to improve the success rate of circuit domain dropping.The embodiment of the present application method includes:Terminal obtains priori frequency point;The terminal meets the cell for the condition of being resident according to priori frequency point search;If the terminal searching resides in the corresponding cell of the priori frequency point to the cell for meeting the condition of being resident, the terminal in preset time period.
Description
Technical field
This application involves the communications field more particularly to the methods and terminal of a kind of circuit domain dropping.
Background technology
In existing network environment, fourth generation mobile communication technology (4Generation, 4G), 3rd generation mobile communication technology
(3Generation, 3G) and Generation Mobile Telecommunication System technology (2Generation, 2G) network exists simultaneously, if mobile terminal
Voice (voice over long term evolution, VOLTE) business based on Long Term Evolution is not supported, then is moved
Circuit domain (circuit switched, CS) business of terminal is needed from 4G lattice networks domain dropping (circuit switched
Fallback, CSFB) to completing on 3G network or 2G networks.For example, from timesharing long term evolution (the time division of 4G
Long term evolution, TD-LTE) lattice network domain dropping is to Universal Mobile Communication System (universal mobile
Telecommunications System, UMTS) network or 2G global system for mobile communications (global system for
Mobile communication, GSM) network.During CSFB, network passes through radio resource control (radio
Resource control, RRC) redirect message give mobile terminal send frequency point, the message carry a 3G or 2G frequency
Point, mobile terminal initiate cell search process to the frequency point, if the signal quality of the cell meets the condition of being resident, terminal can be
CS business is initiated in the cell.The frequency point that RRC release message carries generally can all pass through test, and signal conditioning can be with
Meet CS business.But in global range, the frequency point that still there is subnetwork configuration is unreasonable, and mobile terminal can not be specified
Frequency point searches out cell or can not persistent district.
In existing scheme, when the frequency range that mobile terminal is supported is more, for example, mobile terminal 20 4G frequency ranges of support, 7
3G frequency ranges and 4 2G frequency ranges, then mobile terminal progress full frequency band search, i.e., during carrying out CSFB, mobile terminal is needed to 7
A 3G frequency ranges and 4 2G frequency ranges all scan for, as shown in Figure 1.
In the program, the frequency range that mobile terminal is supported is relatively more, mobile terminal search network needs more times, when searching
When the search duration of rope whole frequency range is more than preset value, lead to the CS business CSFB failures of mobile terminal.
Invention content
The embodiment of the present application provides a kind of method and terminal of circuit domain dropping, for shortening circuit domain dropping process
Search time, to improve the success rate of circuit domain dropping.
The first aspect of the embodiment of the present application provides a kind of method of circuit domain dropping, including:When terminal needs to carry out electricity
When the domain dropping of road, terminal obtains priori frequency point;The terminal meets the cell for the condition of being resident, institute according to priori frequency point search
It includes at least one frequency point to be searched to state priori frequency point, and the frequency point to be searched all corresponds at least one cell;If pre-
It sets the terminal searching in duration and it is corresponding small to reside in the priori frequency point to the cell for meeting the condition of being resident, the then terminal
Area.In the embodiment of the present application, terminal first obtains priori frequency point, is searched in preset time period further according to the priori frequency point got full
The cell of the resident condition of foot, and reside in the cell for meeting the condition of being resident, shorten the search of terminating circuit domain dropping process
Time improves the success rate of terminating circuit domain dropping.
In a kind of possible design, in the first realization method of the embodiment of the present application first aspect, the terminal
According to the priori frequency point search meet be resident condition cell include:The terminal meets resident according to the search of 3G priori frequency points
The cell of condition;The terminal judges whether to be successfully searched the cell for meeting the condition of being resident;If the terminal does not search
Meet the cell for the condition of being resident, then the terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points.The application is implemented
In example, terminal has been refined first according to 3G priori frequency points, the cell for the condition of being resident is met further according to the sequential search of 2G priori frequency points,
Increase the operability of the embodiment of the present application.
In a kind of possible design, in second of realization method of the embodiment of the present application first aspect, the terminal
According to the priori frequency point search meet be resident condition cell include:The terminal meets resident according to the search of 2G priori frequency points
The cell of condition;The terminal judges whether to be successfully searched the cell for meeting the condition of being resident;If the terminal does not search
Meet the cell for the condition of being resident, then the terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points.The application is implemented
In example, terminal has been refined first according to 2G priori frequency points, the cell for the condition of being resident is met further according to the sequential search of 3G priori frequency points,
Increase the operability of the embodiment of the present application.
In a kind of possible design, in the third realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 3G priori frequency points, the terminal meets according to the search of 2G priori frequency points is resident item
Before the cell of part, the method further includes:If the terminal does not search the cell for meeting the condition of being resident, the terminal
Frequency band search where the 3G priori frequency point meets the cell for the condition of being resident.The embodiment of the present application, the first basis of terminal
3G priori frequency points increase after the cell of the resident condition of sequential search satisfaction of 2G priori frequency points according to 3G priori frequencies
Frequency band search where point meets the process of the cell for the condition of being resident, and increases the realization method of the embodiment of the present application.
In a kind of possible design, in the 4th kind of realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 2G priori frequency points, the method further includes:If the terminal does not search
Meet the cell for the condition of being resident, then the terminal meets the small of the condition of being resident according to the frequency band search where the 2G priori frequency point
Area.The embodiment of the present application, terminal meet the condition of being resident formerly according to 3G priori frequency points further according to the sequential search of 2G priori frequency points
Cell after, increase the process for the cell for meeting the condition of being resident according to the frequency band search where 2G priori frequency points, increase this
Apply for the realization method of embodiment.
In a kind of possible design, in the 5th kind of realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 2G priori frequency points, the terminal meets according to the search of 3G priori frequency points is resident item
Before the cell of part, the method further includes:If the terminal does not search the cell for meeting the condition of being resident, the terminal
Frequency band search where the 2G priori frequency point meets the cell for the condition of being resident.The embodiment of the present application, the first basis of terminal
2G priori frequency points increase after the cell of the resident condition of sequential search satisfaction of 3G priori frequency points according to 2G priori frequencies
Frequency band search where point meets the process of the cell for the condition of being resident, and increases the realization method of the embodiment of the present application.
In a kind of possible design, in the 6th kind of realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 3G priori frequency points, the method further includes:If the terminal does not search
Meet the cell for the condition of being resident, then the terminal meets the small of the condition of being resident according to the frequency band search where the 3G priori frequency point
Area.The embodiment of the present application, terminal meet the condition of being resident formerly according to 2G priori frequency points further according to the sequential search of 3G priori frequency points
Cell after, increase the process for the cell for meeting the condition of being resident according to the frequency band search where 3G priori frequency points, increase this
Apply for the realization method of embodiment.
In a kind of possible design, in the 7th kind of realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to priori frequency point search, the method further includes:If described in preset time period
Terminal does not search the cell for meeting the condition of being resident, then the terminal is searched according to the history frequency point being stored in the terminal
Rope meets the cell for the condition of being resident.In the embodiment of the present application, increases and search for the cell for meeting the condition of being resident according to history frequency point
Process increases the realization method of the embodiment of the present application, is that the embodiment of the present application is more perfect in step.
In a kind of possible design, in the 8th kind of realization method of the embodiment of the present application first aspect, the terminal
After meeting the cell for the condition of being resident according to the history frequency point search being stored in the terminal, the method further includes:If
The terminal does not search the cell for meeting the condition of being resident in preset time period, then the terminal is supported according to the terminal
Whole frequency band searches meet the cell for the condition of being resident.In the embodiment of the present application, increase the whole frequency band searches supported according to terminal
The process for meeting the cell for the condition of being resident, increases the realization method of the embodiment of the present application, is the embodiment of the present application in step
It is more perfect.
The embodiment of the present application second aspect provides a kind of terminal, including:Acquiring unit, for obtaining priori frequency point;The
One search unit, the cell for meeting the condition of being resident according to priori frequency point search;First resident element, if when preset
The terminal searching is then used to reside in the corresponding cell of the priori frequency point to the cell for meeting the condition of being resident in long.This Shen
Please be in embodiment, terminal first obtains priori frequency point, and it is resident that satisfaction is searched in preset time period further according to the priori frequency point got
The cell of condition, and reside in the cell for meeting the condition of being resident, the search time of terminating circuit domain dropping process is shortened, is carried
The high success rate of terminating circuit domain dropping.
In a kind of possible design, in the first realization method of the embodiment of the present application second aspect, described first
Search unit includes:First search module, the cell for meeting the condition of being resident according to the search of 3G priori frequency points;Second search mould
Block is resident item if the terminal does not search the cell for meeting the condition of being resident for meeting according to the search of 2G priori frequency points
The cell of part.In the embodiment of the present application, terminal has been refined first according to 3G priori frequency points, further according to the sequential search of 2G priori frequency points
The cell for meeting the condition of being resident, increases the operability of the embodiment of the present application.
In a kind of possible design, in second of realization method of the embodiment of the present application second aspect, described first
Search unit includes:Third search module, the cell for meeting the condition of being resident according to the search of 2G priori frequency points;4th search mould
Block is resident item if the terminal does not search the cell for meeting the condition of being resident for meeting according to the search of 3G priori frequency points
The cell of part.In the embodiment of the present application, terminal has been refined first according to 2G priori frequency points, further according to the sequential search of 3G priori frequency points
The cell for meeting the condition of being resident, increases the operability of the embodiment of the present application.
In a kind of possible design, in the third realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 3G priori frequency points, the terminal meets according to the search of 2G priori frequency points is resident item
Before the cell of part, first search unit further includes:5th search module, if the terminal does not search satisfaction and is resident
The cell of condition is then used to meet according to the frequency band search where the 3G priori frequency point cell for the condition of being resident.The application is real
Example is applied, terminal is formerly according to 3G priori frequency points, after the cell of the resident condition of sequential search satisfaction of 2G priori frequency points,
The process for increasing the cell for meeting the condition of being resident according to the frequency band search where 3G priori frequency points, increases the embodiment of the present application
Realization method.
In a kind of possible design, in the 4th kind of realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 2G priori frequency points, first search unit further includes:6th search module,
If the terminal does not search the cell for meeting the condition of being resident, for according to the frequency band search where the 2G priori frequency point
Meet the cell for the condition of being resident.The embodiment of the present application, terminal is formerly according to 3G priori frequency points, further according to the sequence of 2G priori frequency points
After search meets the cell for the condition of being resident, increase the cell for meeting the condition of being resident according to the frequency band search where 2G priori frequency points
Process, increase the realization method of the embodiment of the present application.
In a kind of possible design, in the 5th kind of realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 2G priori frequency points, the terminal meets according to the search of 3G priori frequency points is resident item
Before the cell of part, first search unit further includes:7th search module, if the terminal does not search satisfaction and is resident
The cell of condition is then used to meet according to the frequency band search where the 2G priori frequency point cell for the condition of being resident.The application is real
Example is applied, terminal is formerly according to 2G priori frequency points, after the cell of the resident condition of sequential search satisfaction of 3G priori frequency points,
The process for increasing the cell for meeting the condition of being resident according to the frequency band search where 2G priori frequency points, increases the embodiment of the present application
Realization method.
In a kind of possible design, in the 6th kind of realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to the search of 3G priori frequency points, first search unit further includes:8th search module,
If the terminal does not search the cell for meeting the condition of being resident, for according to the frequency band search where the 3G priori frequency point
Meet the cell for the condition of being resident.The embodiment of the present application, terminal is formerly according to 2G priori frequency points, further according to the sequence of 3G priori frequency points
After search meets the cell for the condition of being resident, increase the cell for meeting the condition of being resident according to the frequency band search where 3G priori frequency points
Process, increase the realization method of the embodiment of the present application.
In a kind of possible design, in the 7th kind of realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to priori frequency point search, the terminal further includes:Second search unit, if pre-
It sets the terminal in duration and does not search the cell for meeting the condition of being resident, be then used for basis and be stored in going through in the terminal
The search of history frequency point meets the cell for the condition of being resident;Second resident element, if the terminal searching is resident the cell of condition to satisfaction,
It is then used to reside in the corresponding cell of the history frequency point.In the embodiment of the present application, increases to be met according to the search of history frequency point and stay
The process for staying the cell of condition increases the realization method of the embodiment of the present application, is that the embodiment of the present application is more perfect in step.
In a kind of possible design, in the 8th kind of realization method of the embodiment of the present application second aspect, the terminal
After meeting the cell for the condition of being resident according to the history frequency point search being stored in the terminal, the terminal further includes:The
Three search units, if the terminal does not search the cell for meeting the condition of being resident in preset time period, for according to
Whole frequency band searches that terminal is supported meet the cell for the condition of being resident;Third resident element, if the terminal searching is stayed to satisfaction
The cell of condition is stayed, then is used to reside in the corresponding cell of whole frequency ranges that the terminal is supported.In the embodiment of the present application, increase
The process for meeting the cell for the condition of being resident according to whole frequency band searches that terminal is supported, increases the realization side of the embodiment of the present application
Formula is that the embodiment of the present application is more perfect in step.
The embodiment of the present application third aspect provides a kind of terminal, including:By bus be connected processor, memory with
And communication interface;The communication interface is communicated for terminal and other equipment;The memory is for storing program;It is described
Processor is used to execute the program in the memory, specifically comprises the following steps:Obtain priori frequency point;According to priori frequency
Point search meets the cell for the condition of being resident;If the terminal searching is stayed to the cell for meeting the condition of being resident in preset time period
Stay in the corresponding cell of the priori frequency point.
In a kind of possible design, in the first realization method of the embodiment of the present application third aspect, including:It is described
Whole frequency ranges that memory is additionally operable to storage history frequency point and terminal is supported.
In a kind of possible design, in second of realization method of the embodiment of the present application third aspect, including:It is described
Processor be additionally operable to obtain history frequency point where frequency range and/or the frequency range where priori frequency point.
In a kind of possible design, in the third realization method of the embodiment of the present application third aspect, including:It is described
Processor is specifically used for calling the program stored in the memory, executes any one of them side provided such as first aspect
Method.
The embodiment of the present application fourth aspect provides a kind of computer readable storage medium, including instruction, when it is being calculated
When being run on machine so that computer executes the method described in above-mentioned various aspects.
The aspect of the embodiment of the present application the 5th provides a kind of computer program product including instruction, when its on computers
When operation so that computer executes the method described in above-mentioned various aspects.
In technical solution provided by the embodiments of the present application, terminal obtains priori frequency point;The terminal is according to priori frequency
Point search meets the cell for the condition of being resident;If the terminal searching is resident the cell of condition, institute to satisfaction in preset time period
It states terminal and resides in the corresponding cell of the priori frequency point.In the embodiment of the present application, terminal first obtains priori frequency point, further according to obtaining
The priori frequency point got searches for the cell for meeting the condition of being resident in preset time period, and resides in the cell for meeting the condition of being resident
On, the search time of terminating circuit domain dropping process is shortened, the success rate of terminating circuit domain dropping is improved.
Description of the drawings
Fig. 1 is the system framework schematic diagram of the embodiment of the present application application;
Fig. 2 is one embodiment schematic diagram of the method for circuit domain dropping in the embodiment of the present application;
Fig. 3 is one embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 4 is another embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 5 is another embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 6 is another embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 7 is another embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 8 is another embodiment schematic diagram of the acquisition modes of priori frequency point in the embodiment of the present application;
Fig. 9 is another embodiment schematic diagram of the method for circuit domain dropping in the embodiment of the present application;
Figure 10 is another embodiment schematic diagram of the method for circuit domain dropping in the embodiment of the present application;
Figure 11 is one embodiment schematic diagram of terminal in the embodiment of the present application;
Figure 12 is another embodiment schematic diagram of terminal in the embodiment of the present application;
Figure 13 is another embodiment schematic diagram of terminal in the embodiment of the present application;
Figure 14 is another embodiment schematic diagram of terminal in the embodiment of the present application;
Figure 15 is another embodiment schematic diagram of terminal in the embodiment of the present application.
Specific implementation mode
The embodiment of the present application provides a kind of method and terminal of circuit domain dropping, for shortening circuit domain dropping process
Search time, to improve the success rate of circuit domain dropping.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
The embodiment of the present application is described in attached drawing.
Term " first ", " second ", " third " in the description and claims of this application and above-mentioned attached drawing, "
The (if present)s such as four " are for distinguishing similar object, without being used to describe specific sequence or precedence.It should manage
The data that solution uses in this way can be interchanged in the appropriate case, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " comprising " or " having " and its any deformation, it is intended that covering is not
Exclusive includes, for example, contain the process of series of steps or unit, method, system, product or equipment be not necessarily limited to it is clear
Step or unit those of are listed in ground, but may include not listing clearly or for these processes, method, product or set
Standby intrinsic other steps or unit.
Method provided by the embodiments of the present application can be applied to system framework as shown in Figure 1.In the system framework, terminal
The redirection frequency point that network issues is received, and the cell for the condition of being resident is met according to redirection frequency point search, if searching full
The cell of sufficient condition then resides in the cell;If not searching the cell for meeting the condition of being resident, searched for according to history frequency point
Meet the cell for the condition of being resident;If searching the cell for meeting the condition of being resident, reside in the corresponding cell of history frequency point;
If not searching the cell for meeting the condition of being resident, basis search in whole frequency ranges meets the cell for the condition of being resident.If pre-
The cell for not searched yet in duration and meeting the condition of being resident is set, then circuit domain dropping fails.
Referring to Fig. 2, one embodiment of the method for circuit domain dropping includes in the embodiment of the present application:
201, terminal obtains priori frequency point.
After terminal enters a new cell, frequently according to the type of terminal registration network, acquisition priori frequency point and by priori
Point saves, and priori frequency point includes 3G priori frequency point and 2G priori frequency points.The type of registered network can be:Forth generation moves
The communication technology (4Generation, 4G) network, 3rd generation mobile communication technology (3Generation, 3G) network or the second generation are moved
The dynamic communication technology (2Generation, 2G) network, can also be other network types, for example, the 5th third-generation mobile communication technology
(5Generation, 5G) network etc., does not limit specifically herein.
It should be noted that the type of terminal registration network is different, the mode of 3G priori frequency point and 2G priori frequency points is obtained
Also different.For example, endpoint registration, on 4G networks, when terminal is in idle condition, terminal will be from 6 (System of system message
Information Block Type 6) in obtain 3G priori frequency points, specially terminal from IE " carrierFreqListUTRA-
The adjacent areas 3G frequency point is obtained in FDD " or " carrierFreqListUTRA-TDD ";When terminal is in connection status, terminal will
Set from radio resource control connection reconfiguration (RRC connection reconfiguration,
RRCConnectionReconfiguration 3G priori frequency points, specially terminal) are obtained in message from IE
3G measurement frequency points are obtained in " MeasObjectUTRA ";3G priori frequency point includes the adjacent areas 3G frequency point and 3G measurement frequency points at this time, such as
Shown in Fig. 3.When terminal is in idle condition, terminal will be from (the System Information Block Type of system message 7
7) 2G priori frequency points are obtained in, specially terminal obtains the adjacent areas 2G frequency point from IE " CarrierFreqsInfoGERAN ";Work as end
When end is in connection status, terminal will set (RRC connection from radio resource control connection reconfiguration
Reconfiguration, RRCConnectionReconfiguration) 2G priori frequency points, specially terminal are obtained in message
From acquisition 2G measurement frequency points in IE " MeasObjectGERAN ";2G priori frequency point includes that the adjacent areas 2G frequency point and 2G measure frequency at this time
Point, as shown in Figure 4.
Endpoint registration is on 3G network, and when terminal is in idle condition, terminal will be from 11 (System of system message
Information Block Type 11) in obtain 3G priori frequency points, specially terminal from IE " Measurement control
3G alien frequencies frequency points are obtained in system information ";When terminal is in connection status, terminal will be controlled from measuring
3G priori frequency points are obtained in (Measurement Control) message, specially terminal is obtained from IE " Inter-frequency "
Take 3G measurement frequency points;3G priori frequency point includes 3G alien frequencies frequency point and 3G measurement frequency points at this time, as shown in Figure 5.When terminal is in sky
When not busy state, terminal will obtain 2G priori frequencies from system message 11 (System Information Block Type 11)
Point, specially terminal obtain the different system frequencies of 2G from IE " Inter-RAT measurement system information "
Point;When terminal is in connection status, terminal will obtain 2G priori from measuring to control in (Measurement Control) message
Frequency point, specially terminal obtain 2G measurement frequency points from IE " Inter-RAT ";2G priori frequency point includes the different system frequency points of 2G at this time
With 2G measurement frequency points, as shown in Figure 6.
Endpoint registration is on 2G networks, and when terminal is in idle condition, terminal will be from 2 (System of system message
Information type 2quater) in obtain 3G priori frequency points, specially terminal from IE " 3G Neighbour Cell
The adjacent areas 3G frequency point is obtained in Description ";When terminal is in connection status, terminal will be controlled from measuring
3G priori frequency points are obtained in (Measurement Control) message, specially terminal obtains 3G from IE " Inter-RAT " and surveys
Measure frequency point;3G priori frequency point includes the adjacent areas 3G frequency point and 3G measurement frequency points at this time, as shown in Figure 7.When terminal is in idle condition
When, terminal will obtain 2G priori frequency points from system message 2 (System Information Block Type 2), specially
Terminal obtains the adjacent areas 2G frequency point from IE " BCCH Frequency List ";When terminal is in connection status, terminal will be from survey
2G priori frequency points, specially terminal are obtained from IE " Inter- in amount control (Measurement Control) message
2G measurement frequency points are obtained in frequency ";2G priori frequency point includes the adjacent areas 2G frequency point and 2G measurement frequency points at this time, such as Fig. 8 institutes
Show.
202, terminal meets the cell for the condition of being resident according to the search of priori frequency point.
After terminal gets priori frequency point, when terminal is there are circuit domain business, i.e. terminal needs to carry out circuit domain dropping
When, terminal meets the cell for the condition of being resident according to the priori frequency point search got.If terminal searching is resident condition to satisfaction
Cell thens follow the steps 203, if terminal does not search the cell for meeting the condition of being resident, thens follow the steps 204.It needs to illustrate
, step 203 and step 204 are two kinds of situations arranged side by side, do not have fixed sequencing between step 203 and step 204,
Step 204 can not limit specifically herein before step 203 or later.It is understood that each searched frequency
Point can correspond at least one cell, i.e., multiple and different cells can correspond to the same frequency point, and each cell corresponds to one
Frequency point.
For example, priori frequency point includes 3G priori frequency point and 2G priori frequency points, and when terminal falls back to 3G network, terminal
First meet the cell for the condition of being resident according to the search of 3G priori frequency points;If terminal does not search the cell for meeting the condition of being resident,
Terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points.When terminal falls back to 2G networks, terminal is first according to 2G elder generations
Test the cell that frequency point search meets the condition of being resident;If terminal does not search the cell for meeting the condition of being resident, terminal is according to 3G
The search of priori frequency point meets the cell for the condition of being resident.
If 203, terminal searching resides in the priori to the cell for meeting the condition of being resident, terminal in the first preset time period
The corresponding cell of frequency point.
If terminal searches the cell for meeting the condition of being resident according to priori frequency point in the first preset time period, terminal is resident
In the corresponding cell of priori frequency point.
For example, priori frequency point includes 3G priori frequency point and 2G priori frequency points.Terminal is searched for full according to 3G priori frequency points
The cell of the resident condition of foot;If terminal searches the cell for meeting the condition of being resident according to 3G priori frequency points, terminal resides in this
In the corresponding cell of 3G priori frequency points.Terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points;If terminal is according to 2G
Priori frequency point searches the cell for meeting the condition of being resident, then terminal resides in the corresponding cell of 2G priori frequency points.For example, this
When the first preset time period be 2S, when terminal searched in 2 seconds meet be resident condition cell when, then reside in the 2G priori
The corresponding cell of frequency point.
If 204, terminal does not search the cell for meeting the condition of being resident in the first preset time period, terminal is according to having deposited
Store up the cell that the history frequency point search in terminal meets the condition of being resident.
If terminal does not search the cell for meeting the condition of being resident, terminal according to priori frequency point in the first preset time period
Meet the cell for the condition of being resident according to the history frequency point search being stored in terminal.
It should be noted that history frequency point is the frequency point that terminal registers merits and demerits before carrying out cell search process, eventually
After end is succeeded in registration on network, the frequency point of successful registration can be stored in terminal automatically, so that next time scans for
The frequency point can be directly used when cell.
Optionally, in order to reduce the time of search cell, if history frequency point includes the frequency point searched for, in root
When meeting the cell for the condition of being resident according to the search of history frequency point, the frequency point searched for is not repeated.
If 205, terminal searching resides in the history to the cell for meeting the condition of being resident, terminal in the second preset time period
The corresponding cell of frequency point.
If terminal searches the cell for meeting the condition of being resident according to history frequency point in the second preset time period, terminal is resident
In the corresponding cell of history frequency point.For example, preset time period at this time is 5S, item is resident when terminal searches satisfaction in 5 seconds
When the cell of part, then the corresponding cell of history frequency point is resided in.
Optionally, history frequency point includes at least one frequency point, and when the number of history frequency point is greater than or equal to 2, terminal can
To be scanned for one by one according to preset sequence, when the cell for searching the resident condition of satisfaction according to one of history frequency point
When, then terminal resides in the corresponding cell of history frequency point.
If 206, terminal does not search the cell for meeting the condition of being resident in the second preset time period, terminal is according to terminal
Whole frequency band searches of support meet the cell for the condition of being resident.
If terminal does not search the cell for meeting the condition of being resident, terminal according to history frequency point in the second preset time period
Meet the cell for the condition of being resident according to whole frequency band searches that terminal is supported.
For example, when terminal supports multiple frequency ranges, terminal is not searched according to history frequency point meets the condition of being resident
Cell, terminal search in multiple frequency ranges of its support meet the cell for the condition of being resident.Different terminals can be supported different
Frequency range does not limit specifically herein.
Optionally, terminal, can also be according to registration when search meets the cell for the condition of being resident in whole frequency ranges of support
The actual conditions of network are selected, if the band segment that terminal is supported, is not present, then terminal is not to this on its registered network
Band segment carries out cell searching.
If 207, terminal searching resides in the terminal to the cell for meeting the condition of being resident, terminal in third preset time period
The corresponding cell of whole frequency ranges of support.
If whole frequency band searches that terminal is supported according to terminal in third preset time period are resident the cell of condition to satisfaction,
Then terminal resides in whole 2G frequency ranges cell corresponding with whole 3G frequency ranges of terminal support.
In the embodiment of the present application, terminal first obtains priori frequency point, further according to the priori frequency point got in preset time period
Search meets the cell for the condition of being resident, and resides in the cell for meeting the condition of being resident, and shortens terminating circuit domain dropping process
Search time, improve the success rate of terminating circuit domain dropping.
Referring to Fig. 9, when circuit domain dropping is to 3G network, the method for circuit domain dropping is another in the embodiment of the present application
A embodiment includes:
901, terminal obtains priori frequency point.
After terminal enters a new cell, frequently according to the type of terminal registration network, acquisition priori frequency point and by priori
Point saves, and priori frequency point includes 3G priori frequency point and 2G priori frequency points.The type of registered network can be:4G networks, 3G
Network or 2G networks, can also be other network types, for example, 5G networks etc., do not limit specifically herein.
In the embodiment of the present application, step 901 is similar with the terminal acquisition process of priori frequency point in step 201, herein no longer
It repeats.
902, terminal receives 3G and redirects frequency point.
Terminal receives the 3G that network issues and redirects frequency point, which redirects frequency point and carry in RRC redirects message.
903, terminal redirects the cell that frequency point search meets the condition of being resident according to 3G.
Terminal redirects frequency point search according to 3G and meets the cell for the condition of being resident, and opens clocking capability.If terminal according to
The 3G redirects frequency point and searches the cell for meeting the condition of being resident, then terminal executes step 904;If terminal is redirected according to the 3G
Frequency point does not search the cell for meeting the condition of being resident, then terminal executes step 905.
904, terminal resides in the cell for meeting the condition of being resident.
If terminal searching is resident the cell of condition to satisfaction, terminal resides in the cell that the satisfaction is resident condition.
For example, priori frequency point includes 3G priori frequency point and 2G priori frequency points.Terminal is searched for full according to 3G priori frequency points
The cell of the resident condition of foot;If terminal searches the cell for meeting the condition of being resident according to 3G priori frequency points, terminal resides in this
In the corresponding cell of 3G priori frequency points.Terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points;If terminal is according to 2G
Priori frequency point searches the cell for meeting the condition of being resident, then terminal resides in the corresponding cell of 2G priori frequency points.
In a kind of feasible way of example, terminal meets the cell for the condition of being resident according to the search of 3G history frequency points;If eventually
End searches the cell for meeting the condition of being resident according to 3G history frequency points, then terminal resides in the corresponding cell of 3G history frequency points
On.Terminal meets the cell for the condition of being resident according to the search of 2G history frequency points;If terminal searches satisfaction according to 2G history frequency points and stays
The cell of condition is stayed, then terminal resides in the corresponding cell of 2G history frequency points.It is understood that terminal searching is to 2G/
After the corresponding cell for meeting the condition of being resident of 3G frequency ranges, terminal resides in the cell.
905, terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points.
After terminal gets 3G priori frequency points, when terminal is there are circuit domain business, i.e. terminal needs to carry out circuit domain time
When falling, terminal meets the cell for the condition of being resident according to the 3G priori frequency points search got.If terminal searching is resident item to satisfaction
The cell of part, thens follow the steps 904;If terminal does not search the cell for meeting the condition of being resident, 906 are thened follow the steps.
For example, priori frequency point includes 3G priori frequency point and 2G priori frequency points, when terminal falls back to 3G network, terminal is first
Meet the cell for the condition of being resident according to the search of 3G priori frequency points;If terminal searching is resident the cell of condition to satisfaction, terminal is stayed
Stay in the cell for meeting the condition of being resident;If terminal does not search the cell for meeting the condition of being resident, terminal is according to 3G history frequencies
Point search meets the cell for the condition of being resident.
906, terminal meets the cell for the condition of being resident according to the search of 3G history frequency points.
If terminal does not search the cell for meeting the condition of being resident according to 3G priori frequency point, terminal is according to being stored in end
3G history frequency points search on end meets the cell for the condition of being resident.If terminal searching is executed to the cell for meeting the condition of being resident
Step 904;If terminal does not search the cell for meeting the condition of being resident, 907 are thened follow the steps.
It should be noted that history frequency point is the terminal frequency point that successful registration is crossed before carrying out cell search process, eventually
The frequency point of successful registration after successful registration, can be stored in terminal by end automatically on network, so that next time scans for
The frequency point can be directly used when cell.
Optionally, in order to reduce the time of search cell, if history frequency point includes the frequency for having carried out cell searching
Point is not repeated to search for the frequency point searched for then when meeting the cell for the condition of being resident according to the search of history frequency point.
907, terminal meets according to the frequency range where 3G history frequency points and the frequency band search where 3G priori frequency points is resident item
The cell of part.
Terminal is searched according to the frequency range where the 3G history frequency points being stored in terminal and the frequency range where 3G priori frequency points
Rope meets the cell for the condition of being resident.If terminal searching thens follow the steps 904 to the cell for meeting the condition of being resident;If terminal does not have
The cell for meeting the condition of being resident is searched, thens follow the steps 908.
908, terminal meets the cell for the condition of being resident according to whole 3G frequency band searches that terminal is supported.
Terminal meets the cell for the condition of being resident according to whole 3G frequency band searches that terminal is supported.Terminal is according in step 903
Clocking capability obtain current time terminal searching cell consumption first search duration, if this first search duration be more than first
Preset time period, then terminal execute step 909;If the first search duration is less than the first preset time period, terminal continues basis
Whole 3G frequency band searches that terminal is supported meet the cell for the condition of being resident.
For example, the first preset time period can be configured according to actual conditions, in the embodiment of the present application, first is preset
Duration can be 5 seconds, and the first preset time period can also be other numerical value, for example, 4 seconds, it does not limit herein specifically.
909, terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points.
After terminal gets 2G priori frequency points, when terminal is there are circuit domain business, i.e. terminal needs to carry out circuit domain time
When falling, terminal meets the cell for the condition of being resident according to the 2G priori frequency points search got.If terminal searching is resident item to satisfaction
The cell of part, thens follow the steps 904;If terminal does not search the cell for meeting the condition of being resident, 910 are thened follow the steps.
910, terminal meets the cell for the condition of being resident according to the search of 2G history frequency points.
If terminal does not search the cell for meeting the condition of being resident according to priori frequency point, terminal is according to being stored in terminal
On 2G history frequency points search meet be resident condition cell.If terminal searching executes step to the cell for meeting the condition of being resident
Rapid 904;If terminal does not search the cell for meeting the condition of being resident, 911 are thened follow the steps.
911, terminal meets according to the frequency range where 2G history frequency points and the frequency band search where 2G priori frequency points is resident item
The cell of part.
Terminal is searched according to the frequency range where the 2G history frequency points being stored in terminal and the frequency range where 2G priori frequency points
Rope meets the cell for the condition of being resident.If terminal searching thens follow the steps 904 to the cell for meeting the condition of being resident;If terminal does not have
The cell for meeting the condition of being resident is searched, thens follow the steps 912.
912, terminal meets the cell for the condition of being resident according to whole 2G frequency band searches that terminal is supported.
Terminal meets the cell for the condition of being resident according to whole 2G frequency band searches of support.Terminal is according to the meter in step 903
Shi Gongneng obtains the second search duration of current time terminal searching cell consumption, if the second search duration is more than second preset
Duration, then terminal, which stops search, meets the cell for the condition of being resident, circuit domain dropping failure;If it is pre- that the search duration is less than second
Duration is set, then terminal continues the cell for meeting the condition of being resident according to whole 2G frequency band searches of support.
For example, the second preset time period can be configured according to actual conditions, in the embodiment of the present application, second is preset
Duration can be 1 second, and the second preset time period can also be other numerical value, for example, 2 seconds, it does not limit herein specifically.
In the embodiment of the present application, step 909 to step 912 is similar to step 908 with step 905, specifically no longer superfluous herein
It states.It should be noted that step 906 in the embodiment of the present application is not to having inevitable priority suitable between step 908 and step 909
Sequence, step 906 to step 908 can be before steps 909, can also be after step 909.Step 906 is to step 908 and walks
Rapid 910, to sequencing also uninevitable between step 912, can successively execute, can also be performed simultaneously.The application is implemented
A kind of achievable mode is provided in example, rather than the restriction of the sequencing to executing step.
In the embodiment of the present application, terminal first meets the cell for the condition of being resident, then root according to the priori frequency point search got
The cell for meeting the condition of being resident is searched in preset time period according to history frequency point and whole frequency ranges, shortens terminating circuit domain dropping mistake
The search time of journey improves the success rate of terminating circuit domain dropping.
Referring to Fig. 10, when circuit domain dropping is to 2G networks, the method for circuit domain dropping is another in the embodiment of the present application
One embodiment includes:
1001, terminal obtains priori frequency point.
After terminal enters a new cell, frequently according to the type of terminal registration network, acquisition priori frequency point and by priori
Point saves, and priori frequency point includes 3G priori frequency point and 2G priori frequency points.The type of registered network can be:4G networks, 3G
Network or 2G networks, can also be other network types, for example, 5G networks etc., do not limit specifically herein.
1002, terminal receives 2G and redirects frequency point.
Terminal receives the 2G that network issues and redirects frequency point, which redirects frequency point and carry in RRC redirects message.
1003, terminal redirects the cell that frequency point search meets the condition of being resident according to 2G.
Terminal redirects frequency point search according to 2G and meets the cell for the condition of being resident, and opens clocking capability.If terminal according to
The 2G redirects frequency point and searches the cell for meeting the condition of being resident, then terminal executes step 1004;If terminal is reset according to the 2G
The cell for meeting the condition of being resident is not searched to frequency point, then terminal executes step 1005.
1004, terminal resides in the cell for meeting the condition of being resident.
If terminal searching is resident the cell of condition to satisfaction, terminal resides in the cell that the satisfaction is resident condition.
1005, terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points.
After terminal gets 2G priori frequency points, when terminal is there are circuit domain business, i.e. terminal needs to carry out circuit domain time
When falling, terminal meets the cell for the condition of being resident according to the 2G priori frequency points search got.If terminal searching is resident item to satisfaction
The cell of part, thens follow the steps 1004;If terminal does not search the cell for meeting the condition of being resident, 1006 are thened follow the steps.
For example, priori frequency point includes 3G priori frequency point and 2G priori frequency points, when terminal falls back to 2G networks, terminal is first
Meet the cell for the condition of being resident according to the search of 2G priori frequency points;If terminal searching is resident the cell of condition to satisfaction, terminal is stayed
Stay in the cell for meeting the condition of being resident;If terminal does not search the cell for meeting the condition of being resident, terminal is according to 2G history frequencies
Point search meets the cell for the condition of being resident.
1006, terminal meets the cell for the condition of being resident according to the search of 2G history frequency points.
If terminal does not search the cell for meeting the condition of being resident according to 2G priori frequency point, terminal is according to being stored in end
2G history frequency points search on end meets the cell for the condition of being resident.If terminal searching is executed to the cell for meeting the condition of being resident
Step 1004;If terminal does not search the cell for meeting the condition of being resident, 1007 are thened follow the steps.
1007, terminal meets according to the frequency range where 2G history frequency points and the frequency band search where 2G priori frequency points is resident item
The cell of part.
Terminal is searched according to the frequency range where the 2G history frequency points being stored in terminal and the frequency range where 2G priori frequency points
Rope meets the cell for the condition of being resident.If terminal searching thens follow the steps 1004 to the cell for meeting the condition of being resident;If terminal does not have
The cell for meeting the condition of being resident is searched, thens follow the steps 1008.
1008, terminal meets the cell for the condition of being resident according to whole 2G frequency band searches that terminal is supported.
Terminal meets the cell for the condition of being resident according to whole 2G frequency band searches that terminal is supported.Terminal is according in step 1003
Clocking capability obtain current time terminal searching cell consumption first search duration, if this first search duration be more than first
Preset time period, then terminal execute step 1009;If the first search duration is less than the first preset time period, terminal continues basis
Whole 2G frequency band searches that terminal is supported meet the cell for the condition of being resident.
1009, terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points.
After terminal gets 3G priori frequency points, when terminal is there are circuit domain business, i.e. terminal needs to carry out circuit domain time
When falling, terminal meets the cell for the condition of being resident according to the 3G priori frequency points search got.If terminal searching is resident item to satisfaction
The cell of part, thens follow the steps 1004;If terminal does not search the cell for meeting the condition of being resident, 1010 are thened follow the steps.
1010, terminal meets the cell for the condition of being resident according to the search of 3G history frequency points.
If terminal does not search the cell for meeting the condition of being resident according to 3G priori frequency point, terminal is according to being stored in end
3G history frequency points search on end meets the cell for the condition of being resident.If terminal searching is executed to the cell for meeting the condition of being resident
Step 1004;If terminal does not search the cell for meeting the condition of being resident, 1011 are thened follow the steps.
1011, terminal meets according to the frequency range where 3G history frequency points and the frequency band search where 3G priori frequency points is resident item
The cell of part.
Terminal is searched according to the frequency range where the 3G history frequency points being stored in terminal and the frequency range where 3G priori frequency points
Rope meets the cell for the condition of being resident.If terminal searching thens follow the steps 1004 to the cell for meeting the condition of being resident;If terminal does not have
The cell for meeting the condition of being resident is searched, thens follow the steps 1012.
1012, terminal meets the cell for the condition of being resident according to whole 3G frequency band searches that terminal is supported.
Terminal meets the cell for the condition of being resident according to whole 3G frequency band searches that terminal is supported.Terminal is according in step 903
Clocking capability obtain current time terminal searching cell consumption second search duration, if this second search duration be more than second
Preset time period, then terminal, which stops search, meets the cell for the condition of being resident, circuit domain dropping failure;If the search duration is less than
Two preset time periods, then whole 3G frequency band searches satisfaction that terminal continues to be supported according to terminal are resident the cell of condition.
In the embodiment of the present application, step 1001 to step 1012 is similar with the process in step 901 to step 912, herein
It repeats no more.
In the embodiment of the present application, step 1009 to step 1012 is similar to step 1008 with step 1005, specifically herein not
It repeats again.It should be noted that the step 1006 in the embodiment of the present application is inevitable to not having between step 1008 and step 1009
Sequencing, step 1006 to step 1008 can be before step 1009, can also be after step 1009.Step 1006
To sequencing also uninevitable between step 1008 and step 1010 to step 1012, can successively execute, it can also be same
Shi Zhihang.Provide a kind of achievable mode in the embodiment of the present application, rather than the restriction of the sequencing to executing step.
In the embodiment of the present application, terminal first meets the cell for the condition of being resident, then root according to the priori frequency point search got
The cell for meeting the condition of being resident is searched in preset time period according to history frequency point and whole frequency ranges, shortens terminating circuit domain dropping mistake
The search time of journey improves the success rate of terminating circuit domain dropping.
The method of circuit domain dropping in the embodiment of the present application is described above, below to whole in the embodiment of the present application
End is described, and please refers to Fig.1 1, and one embodiment of terminal includes in the embodiment of the present application:
Acquiring unit 1101, for obtaining priori frequency point;
First search unit 1102, the cell for meeting the condition of being resident according to priori frequency point search;
First resident element 1103, if the terminal searching is used to the cell for meeting the condition of being resident in preset time period
In residing in the corresponding cell of the priori frequency point.
In the embodiment of the present application, terminal obtains priori frequency point, and the cell for the condition of being resident is met further according to the search of priori frequency point,
The search time for shortening terminating circuit domain dropping process improves the success rate of terminating circuit domain dropping.
For ease of understanding, the terminal in the embodiment of the present application is described in detail below, the base shown in above-mentioned Figure 11
On plinth, 2 are please referred to Fig.1, another embodiment of terminal includes in the embodiment of the present application:The search of acquiring unit 1101, first is single
Member 1102 and the first resident element 1103.
Optionally, the first search unit 1102 may include:
First search module 11021, the cell for meeting the condition of being resident according to the search of 3G priori frequency points;
Second search module 11022, if the terminal does not search the cell for meeting the condition of being resident, for according to 2G
The search of priori frequency point meets the cell for the condition of being resident.
Optionally, the first search unit 1102 may include:
Third search module 11023, the cell for meeting the condition of being resident according to the search of 2G priori frequency points;
4th search module 11024, if the terminal does not search the cell for meeting the condition of being resident, for according to 3G
The search of priori frequency point meets the cell for the condition of being resident.
Optionally, the first search unit 1102 may further include:
5th search module 11025, if the terminal does not search the cell for meeting the condition of being resident, for according to institute
Frequency band search where stating 3G priori frequency points meets the cell for the condition of being resident.
Optionally, the first search unit 1102 may further include:
6th search module 11026, if the terminal does not search the cell for meeting the condition of being resident, for according to institute
Frequency band search where stating 2G priori frequency points meets the cell for the condition of being resident.
Optionally, the first search unit 1102 may further include:
7th search module 11027, if the terminal does not search the cell for meeting the condition of being resident, for according to institute
Frequency band search where stating 2G priori frequency points meets the cell for the condition of being resident.
Optionally, the first search unit 1102 may further include:
8th search module 11028, if the terminal does not search the cell for meeting the condition of being resident, for according to institute
Frequency band search where stating 3G priori frequency points meets the cell for the condition of being resident.
In the embodiment of the present application, terminal obtains priori frequency point, and the cell for the condition of being resident is met further according to the search of priori frequency point,
The search time for shortening terminating circuit domain dropping process improves the success rate of terminating circuit domain dropping.
Please refer to Fig.1 3, another embodiment of terminal includes in the embodiment of the present application:Acquiring unit 1101, first is searched for
Unit 1102 and the first resident element 1103.
Optionally, terminal can further comprise:
Second search unit 1104, if the terminal does not search the cell for meeting the condition of being resident in preset time period,
Then it is used to meet according to the history frequency point search being stored in the terminal cell for the condition of being resident;
Second resident element 1105, it is described for residing in if the terminal searching is to the cell for meeting the condition of being resident
The corresponding cell of history frequency point.
Optionally, terminal can further comprise:
Third search unit 1106, if the terminal does not search the cell for meeting the condition of being resident in preset time period,
Then it is used to meet according to whole frequency band searches that the terminal is supported the cell for the condition of being resident;
Third resident element 1107, it is described for residing in if the terminal searching is to the cell for meeting the condition of being resident
The corresponding cell of whole frequency ranges that terminal is supported.
In the embodiment of the present application, terminal first meets the cell for the condition of being resident, then root according to the priori frequency point search got
The cell for meeting the condition of being resident is searched in preset time period according to history frequency point and whole frequency ranges, shortens terminating circuit domain dropping mistake
The search time of journey improves the success rate of terminating circuit domain dropping.
Angle of the above figure 11 to Figure 13 from modular functionality entity is respectively to motion-vector prediction in the embodiment of the present application
Equipment be described in detail, below from the angle of hardware handles in the embodiment of the present application motion-vector prediction equipment carry out
Detailed description.
Please refer to Fig.1 4.Figure 14 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application, which can
Bigger difference is generated because configuration or performance are different, may include one or more central processing units (Central
Processing units, CPU) 1401 (for example, one or more processors) and memory 1409, one or one with
The storage medium 1408 (such as one or more mass memory units) of upper storage application program 1407 or data 1406.Its
In, memory 1409 and storage medium 1408 can be of short duration storage or persistent storage.It is stored in the program of storage medium 1408
May include one or more modules (diagram does not mark), each module may include to the series of instructions behaviour in terminal
Make.Further, processor 1401 could be provided as communicating with storage medium 1408, and storage medium is executed in terminal 1400
Series of instructions operation in 1408.
Terminal 1400 can also include one or more power supplys 1402, one or more wired or wireless networks
Interface 1403, one or more input/output interfaces 1404, and/or, one or more operating systems 1405, such as
Windows Server, Mac OS X, Unix, Linux, FreeBSD etc..
Step in above-described embodiment performed by terminal can be based on terminal structure shown in the Figure 14.
Refering to fig. 1 shown in 5, which includes:Processor 1512, communication interface 1513, memory 1511.It is optional
, terminal 1510 can also include bus 1514.Wherein, communication interface 1513, processor 1512 and memory 1511 can be with
It is connected with each other by bus 1514;Bus 1514 can be Peripheral Component Interconnect standard (peripheral component
Interconnect, PCI) bus or expanding the industrial standard structure (extended industry standard
Architecture, EISA) bus etc..Bus 1114 can be divided into address bus, data/address bus, controlling bus etc..For ease of
It indicates, is only indicated with a thick line in Figure 15, it is not intended that an only bus or a type of bus.The terminal packet
It includes:Processor, memory and the communication interface being connected by bus;The communication interface is carried out for terminal and other equipment
Communication;The memory is for storing program;The processor is used to execute the program in the memory, specifically includes as follows
Step:Obtain priori frequency point;Meet the cell for the condition of being resident according to priori frequency point search;If the end in preset time period
End searches the cell for meeting the condition of being resident, then resides in the corresponding cell of the priori frequency point.
Optionally, in a kind of possible design, including:The memory is additionally operable to storage history frequency point and terminal is supported
Whole frequency ranges.
Optionally, in a kind of possible design, the processor be additionally operable to obtain history frequency point where frequency range and/or
Frequency range where priori frequency point.
Optionally, in a kind of possible design, the processor is specifically used for calling the journey stored in the memory
Sequence executes the method and step as described in Fig. 2, Fig. 9 or Figure 10.
The embodiment of the present application provides another terminal, and the terminal includes one or more processors;Memory and one
A or multiple programs, wherein one or more of programs are stored in the memory, one or more of program bags
Instruction is included, when described instruction is executed by the terminal so that the terminal executes following steps:Obtain priori frequency point;According to
The priori frequency point search meets the cell for the condition of being resident;If the terminal searching is resident condition to satisfaction in preset time period
Cell then resides in the corresponding cell of the priori frequency point.
The step of method in conjunction with described in the embodiment of the present application disclosure or algorithm, can be come real in a manner of hardware
It is existing, can also be that the mode of software instruction is executed by processor to realize.Software instruction can be made of corresponding software module,
Software module can be stored on random access memory (random access memory, RAM), flash memory, read-only memory
(read only memory, ROM), Erasable Programmable Read Only Memory EPROM (erasable programmable ROM,
EPROM), Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM), register, hard disk, movement are hard
In the storage medium of disk, CD-ROM (CD-ROM) or any other form well known in the art.A kind of illustrative storage
Medium couples are to processor, to enable a processor to from the read information, and can be written and believe to the storage medium
Breath.Certainly, storage medium can also be the component part of processor.Pocessor and storage media can be located at application-specific integrated circuit
In (application specific integrated circuit, ASIC).
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its arbitrary combination real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.
The computer program product includes one or more computer instructions.Load and execute on computers the meter
When calculation machine program instruction, entirely or partly generate according to the flow or function described in the embodiment of the present application.The computer can
To be all-purpose computer, special purpose computer, computer network or other programmable devices.The computer instruction can be deposited
Storage in a computer-readable storage medium, or from a computer readable storage medium to another computer readable storage medium
Transmission, for example, the computer instruction can pass through wired (example from a web-site, computer, server or data center
Such as coaxial cable, optical fiber, Digital Subscriber Line (digital subscriber line, DSL)) or wireless (such as infrared, wireless,
Microwave etc.) mode is transmitted to another web-site, computer, server or data center.It is described computer-readable to deposit
Storage media can be the clothes that any usable medium that computer can store either is integrated comprising one or more usable mediums
The data storage devices such as business device, data center.The usable medium can be magnetic medium, (for example, floppy disk, hard disk, tape),
Optical medium (for example, DVD) or semiconductor medium (such as solid state disk (solid state disk, SSD)) etc..
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of equipment and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, apparatus embodiments described above are merely indicative, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, equipment or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in the embodiment of the present application can be integrated in a processing unit, can also be each
A unit physically exists alone, can also be during two or more units are integrated in one unit.Above-mentioned integrated unit was both
The form that hardware may be used is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned includes:USB flash disk, mobile hard disk, read-only memory (read-only memory,
ROM), random access memory (random access memory, RAM), magnetic disc or CD etc. are various can store program
The medium of code.
The above, above example are only to illustrate the technical solution of the application, rather than its limitations;Although with reference to before
Embodiment is stated the application is described in detail, it will be understood by those of ordinary skill in the art that:It still can be to preceding
The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features;And these
Modification or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (24)
1. a kind of method of circuit domain dropping, which is characterized in that including:
Terminal obtains priori frequency point;
The terminal meets the cell for the condition of being resident according to priori frequency point search;
If the terminal searching resides in the priori frequency to the cell for meeting the condition of being resident, the terminal in preset time period
The corresponding cell of point.
2. according to the method described in claim 1, it is characterized in that, the terminal is resident according to priori frequency point search satisfaction
The cell of condition includes:
The terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points;
If the terminal does not search the cell for meeting the condition of being resident, the terminal meets according to the search of 2G priori frequency points stays
Stay the cell of condition.
3. according to the method described in claim 1, it is characterized in that, the terminal is resident according to priori frequency point search satisfaction
The cell of condition includes:
The terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points;
If the terminal does not search the cell for meeting the condition of being resident, the terminal meets according to the search of 3G priori frequency points stays
Stay the cell of condition.
4. according to the method described in claim 2, it is characterized in that, the terminal meets according to the search of 3G priori frequency points is resident item
After the cell of part, before the terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident, the terminal is according to where the 3G priori frequency point
Frequency band search meets the cell for the condition of being resident.
5. according to the method described in claim 4, it is characterized in that, the terminal meets according to the search of 2G priori frequency points is resident item
After the cell of part, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident, the terminal is according to where the 2G priori frequency point
Frequency band search meets the cell for the condition of being resident.
6. according to the method described in claim 3, it is characterized in that, the terminal meets according to the search of 2G priori frequency points is resident item
After the cell of part, before the terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident, the terminal is according to where the 2G priori frequency point
Frequency band search meets the cell for the condition of being resident.
7. according to the method described in claim 6, it is characterized in that, the terminal meets according to the search of 3G priori frequency points is resident item
After the cell of part, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident, the terminal is according to where the 3G priori frequency point
Frequency band search meets the cell for the condition of being resident.
8. method according to any one of claim 1 to 7, which is characterized in that the terminal is according to the priori frequency point
After search meets the cell for the condition of being resident, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident in preset time period, the terminal is according to being stored in
History frequency point search in the terminal meets the cell for the condition of being resident.
9. according to the method described in claim 8, it is characterized in that, the terminal is according to the history being stored in the terminal
After frequency point search meets the cell for the condition of being resident, the method further includes:
If the terminal does not search the cell for meeting the condition of being resident in preset time period, the terminal is according to the terminal
Whole frequency band searches of support meet the cell for the condition of being resident.
10. a kind of terminal, which is characterized in that including:
Acquiring unit, for obtaining priori frequency point;
First search unit, the cell for meeting the condition of being resident according to priori frequency point search;
First resident element, if the terminal searching is to the cell for meeting the condition of being resident in preset time period, for residing in
The corresponding cell of the priori frequency point.
11. terminal according to claim 10, which is characterized in that first search unit includes:
First search module, the cell for meeting the condition of being resident according to the search of 3G priori frequency points;
Second search module, if the terminal does not search the cell for meeting the condition of being resident, for according to 2G priori frequency points
Search meets the cell for the condition of being resident.
12. terminal according to claim 10, which is characterized in that first search unit includes:
Third search module, the cell for meeting the condition of being resident according to the search of 2G priori frequency points;
4th search module, if the terminal does not search the cell for meeting the condition of being resident, for according to 3G priori frequency points
Search meets the cell for the condition of being resident.
13. terminal according to claim 11, which is characterized in that the terminal meets resident according to the search of 3G priori frequency points
After the cell of condition, before the terminal meets the cell for the condition of being resident according to the search of 2G priori frequency points, first search
Unit further includes:
5th search module, if the terminal does not search the cell for meeting the condition of being resident, for according to the 3G priori
Frequency band search where frequency point meets the cell for the condition of being resident.
14. terminal according to claim 13, which is characterized in that the terminal meets resident according to the search of 2G priori frequency points
After the cell of condition, first search unit further includes:
6th search module, if the terminal does not search the cell for meeting the condition of being resident, for according to the 2G priori
Frequency band search where frequency point meets the cell for the condition of being resident.
15. terminal according to claim 12, which is characterized in that the terminal meets resident according to the search of 2G priori frequency points
After the cell of condition, before the terminal meets the cell for the condition of being resident according to the search of 3G priori frequency points, first search
Unit further includes:
7th search module, if the terminal does not search the cell for meeting the condition of being resident, for according to the 2G priori
Frequency band search where frequency point meets the cell for the condition of being resident.
16. terminal according to claim 15, which is characterized in that the terminal meets resident according to the search of 3G priori frequency points
After the cell of condition, first search unit further includes:
8th search module, if the terminal does not search the cell for meeting the condition of being resident, for according to the 3G priori
Frequency band search where frequency point meets the cell for the condition of being resident.
17. the terminal according to any one of claim 10 to 16, which is characterized in that the terminal is according to priori frequency
After point search meets the cell for the condition of being resident, the terminal further includes:
Second search unit is used for root if the terminal does not search the cell for meeting the condition of being resident in preset time period
Meet the cell for the condition of being resident according to the history frequency point search being stored in the terminal;
Second resident element, if the terminal searching to the cell for meeting the condition of being resident, is used to reside in the history frequency point
Corresponding cell.
18. terminal according to claim 17, which is characterized in that the terminal is according to being stored in going through in the terminal
After the search of history frequency point meets the cell for the condition of being resident, the terminal further includes:
Third search unit is used for root if the terminal does not search the cell for meeting the condition of being resident in preset time period
Meet the cell for the condition of being resident according to whole frequency band searches that the terminal is supported;
Third resident element, if the terminal searching is supported to the cell for meeting the condition of being resident for residing in the terminal
The corresponding cell of whole frequency ranges.
19. a kind of terminal, which is characterized in that including:
Processor, memory and the communication interface being connected by bus;
The communication interface is communicated for terminal and other equipment;
The memory is for storing program;
The processor is used to execute the program in the memory, specifically comprises the following steps:
Obtain priori frequency point;
Meet the cell for the condition of being resident according to priori frequency point search;
If it is corresponding to reside in the priori frequency point to the cell for meeting the condition of being resident for the terminal searching in preset time period
Cell.
20. terminal according to claim 19, which is characterized in that including:
Whole frequency ranges that the memory is additionally operable to storage history frequency point and terminal is supported.
21. terminal according to claim 19, which is characterized in that including:
The processor be additionally operable to obtain history frequency point where frequency range and/or the frequency range where priori frequency point.
22. terminal according to claim 19, which is characterized in that including:
The processor is specifically used for calling the program stored in the memory, executes such as any one of claim 1 to 9 institute
The method stated.
23. a kind of computer readable storage medium, including instruction, when run on a computer so that computer executes such as
Method described in any one of claim 1-9.
24. a kind of computer program product including instruction, when run on a computer so that computer executes such as right
It is required that the method described in 1-9 any one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/090752 WO2019000309A1 (en) | 2017-06-29 | 2017-06-29 | Method for circuit switched fallback, and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108702667A true CN108702667A (en) | 2018-10-23 |
Family
ID=63844126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780010134.3A Pending CN108702667A (en) | 2017-06-29 | 2017-06-29 | A kind of method and terminal of circuit domain dropping |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108702667A (en) |
| WO (1) | WO2019000309A1 (en) |
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| CN109788151A (en) * | 2019-03-12 | 2019-05-21 | 维沃移动通信有限公司 | Method and apparatus for restoring VoLTE call |
| CN110049535A (en) * | 2019-04-15 | 2019-07-23 | 深圳市万普拉斯科技有限公司 | Network search method, device, equipment and storage medium |
| CN111836362A (en) * | 2020-07-13 | 2020-10-27 | 中国联合网络通信集团有限公司 | Method and device for establishing call |
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| US9178758B2 (en) * | 2012-10-24 | 2015-11-03 | Mediatek Inc. | Methods for shortening CSFB performance time and communication apparatuses utilizing the same |
| CN105848237B (en) * | 2015-01-16 | 2019-05-10 | 中国移动通信集团广东有限公司 | Obtain the method and device of the 2G measurement frequency point of circuit domain dropping CSFB |
| US20160330642A1 (en) * | 2015-05-06 | 2016-11-10 | Qualcomm Incorporated | Circuit switched fallback |
| CN106028406B (en) * | 2016-06-30 | 2019-07-09 | 华为技术有限公司 | Wireless terminal, cut-in method and device |
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| CN105992294A (en) * | 2015-02-16 | 2016-10-05 | 展讯通信（上海）有限公司 | User terminal, method and device for processing circuit switch services under LTE (long term evolution) system |
| CN105578544A (en) * | 2015-12-21 | 2016-05-11 | 华为技术有限公司 | Circuit domain switched fallback method and terminal device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109788151A (en) * | 2019-03-12 | 2019-05-21 | 维沃移动通信有限公司 | Method and apparatus for restoring VoLTE call |
| CN109788151B (en) * | 2019-03-12 | 2020-08-18 | 维沃移动通信有限公司 | Method and device for recovering VoLTE call |
| CN110049535A (en) * | 2019-04-15 | 2019-07-23 | 深圳市万普拉斯科技有限公司 | Network search method, device, equipment and storage medium |
| WO2020211789A1 (en) * | 2019-04-15 | 2020-10-22 | 深圳市万普拉斯科技有限公司 | Network search method and apparatus, device and storage medium |
| CN110049535B (en) * | 2019-04-15 | 2022-04-15 | 深圳市万普拉斯科技有限公司 | Network searching method, device, equipment and storage medium |
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| CN111836362A (en) * | 2020-07-13 | 2020-10-27 | 中国联合网络通信集团有限公司 | Method and device for establishing call |
Also Published As
| Publication number | Publication date |
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| WO2019000309A1 (en) | 2019-01-03 |
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Application publication date: 20181023 |