CN109005574A - Cell selecting method, mobile terminal and computer readable storage medium - Google Patents
Cell selecting method, mobile terminal and computer readable storage medium Download PDFInfo
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- CN109005574A CN109005574A CN201810852737.4A CN201810852737A CN109005574A CN 109005574 A CN109005574 A CN 109005574A CN 201810852737 A CN201810852737 A CN 201810852737A CN 109005574 A CN109005574 A CN 109005574A
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- 238000012512 characterization method Methods 0.000 claims abstract description 88
- 230000006870 function Effects 0.000 claims description 54
- 230000005540 biological transmission Effects 0.000 claims description 48
- 238000004364 calculation method Methods 0.000 claims description 21
- 238000010187 selection method Methods 0.000 claims description 18
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- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 230000006854 communication Effects 0.000 description 12
- 238000004891 communication Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000002085 persistent effect Effects 0.000 description 3
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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Abstract
The invention discloses a kind of cell selecting methods, include at least two cells in the cell list this method comprises: obtaining cell list to be selected；The current signal strength value of each cell in the cell list is obtained, and reads the historic load characterization information of each cell from preset cell presence information library, the historic load characterization information is used to characterize the historic load situation of cell；According to the current signal strength value and the historic load characterization information, the corresponding priority value for calculating each cell；The priority value for each cell being calculated is compared, the maximum cell of priority value is selected to be resident as target serving district.The invention also discloses a kind of mobile terminals and a kind of computer readable storage medium.The present invention can be realized the reasonable selection of cell, avoid the cell that mobile terminal retention signal is compared with strong and active service quality is bad.
Description
Technical field
The present invention relates to mobile communication technology field more particularly to cell selecting methods, mobile terminal and computer-readable
Storage medium.
Background technique
Cell, i.e., in cell mobile communication systems, a part (fan anteena) institute of one of base station or base station
The region of covering.Currently, when mobile terminal selects persistent district, multiple meet default cell selection criterion if detected
Cell, then mobile terminal can the preferential highest cell of selection signal intensity it is resident, this would potentially result in the strong cell serves of signal
Bad situation occurs quality instead.For example, mobile terminal detects that currently there are two the cells for meeting cell selection criterion: small
Area A and cell B, and the signal strength of cell A is higher than cell B, then mobile terminal can the preferential higher cell A of selection signal intensity
It is resident, however when the mobile terminal quantity that cell A is resident is excessive, the service quality of cell A will decline, such as under network speed
Drop, at this time although mobile terminal resides in the stronger cell of signal, but the active service quality of the cell is bad instead, thus shadow
Usage experience of the user based on mobile terminal is rung.
Summary of the invention
It is a primary object of the present invention to propose a kind of cell selecting method, mobile terminal and computer-readable storage medium
Matter, it is intended to which the reasonable selection for realizing cell avoids the cell that mobile terminal retention signal is compared with strong and active service quality is bad.
To achieve the above object, the present invention provides a kind of cell selecting method, and the cell selecting method includes following step
It is rapid:
Cell list to be selected is obtained, includes at least two cells in the cell list；
The current signal strength value of each cell in the cell list is obtained, and from preset cell presence information library
The historic load characterization information of each cell is read, the historic load characterization information is used to characterize the historic load of cell
Situation；
According to the current signal strength value and the historic load characterization information, the corresponding priority for calculating each cell
Value；
The priority value for each cell being calculated is compared, selects the maximum cell of priority value as target
Serving cell is resident.
Optionally, before described the step of obtaining cell list to be selected, further includes:
Establish cell presence information library；
When detecting that mobile terminal is resident a certain cell, the mobile terminal is recorded during being resident the cell
Mobile network's transmission rate, mobile network's transmission rate are used to characterize the historic load situation of the cell；
The resident cell of the mobile terminal and corresponding network transmission speed are saved to cell presence information library
In.
Optionally, the historic load characterization information that each cell is read from preset cell presence information library
The step of include:
The current system time of the mobile terminal is obtained, and determines the first preset time locating for the system time
Section；
It is passed from the mobile network for reading each cell in first preset time period in preset cell presence information library
Defeated rate；
It is described according to the current signal strength value and the historic load characterization information, it is corresponding to calculate the excellent of each cell
The step of first grade value includes:
For each cell, the first average value of mobile network's transmission rate in first preset time period is sought；
According to the current signal strength value and first average value, the corresponding priority value for calculating each cell.
Optionally, described according to the current signal strength value and first average value, it corresponds to and calculates each cell
The step of priority value includes:
It is right according to the current signal strength value, first average value and preset first priority value calculations function
The priority value of each cell should be calculated, wherein the first priority value calculations function is the current signal strength value
Increasing function, and be the subtraction function of first average value.
Optionally, the historic load characterization information that each cell is read from preset cell presence information library
The step of include:
The mobile network that each cell in the second preset time period is read from preset cell presence information library transmits speed
Rate；
It is described according to the current signal strength value and the historic load characterization information, it is corresponding to calculate the excellent of each cell
The step of first grade value includes:
For each cell, the second average value of mobile network's transmission rate in second preset time period is sought；
According to the current signal strength value and second average value, the corresponding priority value for calculating each cell.
Optionally, the priority value of each cell that will be calculated is compared, and selects priority value maximum
Cell is carried out as target serving district before resident step, further includes:
When the unread historic load characterization information to each cell, each cell is obtained from network side
Present load characterization value；
According to the current signal strength value and the present load characterization value, the corresponding priority for calculating each cell
Value.
Optionally, described according to the current signal strength value and the present load characterization value, corresponding calculating is each small
The step of priority value in area includes:
According to the current signal strength value, the present load characterization value and preset second priority value calculations letter
Number, the corresponding priority value for calculating each cell, wherein the second priority value calculations function is the current signal strength
The increasing function of value, and be the subtraction function of the present load characterization value.
Optionally, the cell selecting method further include:
The load characterization value of the target serving district is obtained from network side every preset duration；
When the load characterization value of the target serving district got is higher than preset threshold, network reselection registration is enabled
It is resident with reselecting target serving district.
In addition, to achieve the above object, the present invention also provides a kind of mobile terminal, the mobile terminal include: memory,
Processor and it is stored in the cell selection procedure that can be run on the memory and on the processor, the cell selects journey
The step of sequence realizes cell selecting method as described above when being executed by the processor.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer readable storage medium
Cell selection procedure is stored on storage medium, the cell selection procedure realizes cell as described above when being executed by processor
The step of selection method.
The present invention is when mobile terminal carries out cell selection, by the current signal value and historic load that obtain each cell
Characterization information, and then according to the current signal value and the corresponding priority value for calculating each cell of historic load characterization information, and
The maximum cell of final choice priority value is resident as target serving district.Only pass through cell in compared with the prior art
Current signal value select cell, the present invention combination cell current signal value and historic load characterization information select cell, realization
The reasonable selection of cell avoids the cell that mobile terminal retention signal is compared with strong and active service quality is bad.
Detailed description of the invention
A kind of hardware structural diagram of Fig. 1 mobile terminal of each embodiment to realize the present invention；
Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of cell selecting method first embodiment of the present invention；
Fig. 4 is the flow diagram of cell selecting method second embodiment of the present invention；
Fig. 5 is the flow diagram of cell selecting method 3rd embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, plate
Computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. move
The fixed terminals such as dynamic terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special
Except element for moving purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its mobile terminal of each embodiment to realize the present invention, the shifting
Dynamic terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit
108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1
Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram,
Perhaps certain components or different component layouts are combined.
It is specifically introduced below with reference to all parts of the Fig. 1 to mobile terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 shows
Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need
It to omit within the scope of not changing the essence of the invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, by radio frequency unit 101 or WiFi module 102 it is received or
The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103
Audio output relevant to the specific function that mobile terminal 100 executes can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify the application of mobile phone posture
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with
And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071
Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can
To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing mobile terminal as two independent components, but in certain embodiments, it can
The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically
It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage
Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Based on above-mentioned mobile terminal hardware configuration, each embodiment of mobile terminal of the present invention is proposed.
Fig. 1 is please referred to, in an embodiment of mobile terminal of the present invention, which includes: memory 109, processing
Device 110 and it is stored in the cell selection procedure that can be run on the memory 109 and on the processor 110, the cell
Option program performs the steps of when being executed by the processor 110
Cell list to be selected is obtained, includes at least two cells in the cell list；
The current signal strength value of each cell in the cell list is obtained, and from preset cell presence information library
The historic load characterization information of each cell is read, the historic load characterization information is used to characterize the historic load of cell
Situation；
According to the current signal strength value and the historic load characterization information, the corresponding priority for calculating each cell
Value；
The priority value for each cell being calculated is compared, selects the maximum cell of priority value as target
Serving cell is resident.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
Establish cell presence information library；
When detecting that mobile terminal is resident a certain cell, the mobile terminal is recorded during being resident the cell
Mobile network's transmission rate, mobile network's transmission rate are used to characterize the historic load situation of the cell；
The resident cell of the mobile terminal and corresponding network transmission speed are saved to cell presence information library
In.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
The current system time of the mobile terminal is obtained, and determines the first preset time locating for the system time
Section；
It is passed from the mobile network for reading each cell in first preset time period in preset cell presence information library
Defeated rate；
For each cell, the first average value of mobile network's transmission rate in first preset time period is sought；
According to the current signal strength value and first average value, the corresponding priority value for calculating each cell.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
It is right according to the current signal strength value, first average value and preset first priority value calculations function
The priority value of each cell should be calculated, wherein the first priority value calculations function is the current signal strength value
Increasing function, and be the subtraction function of first average value.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
The mobile network that each cell in the second preset time period is read from preset cell presence information library transmits speed
Rate；
For each cell, the second average value of mobile network's transmission rate in second preset time period is sought；
According to the current signal strength value and second average value, the corresponding priority value for calculating each cell.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
When the unread historic load characterization information to each cell, each cell is obtained from network side
Present load characterization value；
According to the current signal strength value and the present load characterization value, the corresponding priority for calculating each cell
Value.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
According to the current signal strength value, the present load characterization value and preset second priority value calculations letter
Number, the corresponding priority value for calculating each cell, wherein the second priority value calculations function is the current signal strength
The increasing function of value, and be the subtraction function of the present load characterization value.
Further, it is also performed the steps of when the cell selection procedure is executed by the processor 110
The load characterization value of the target serving district is obtained from network side every preset duration；
When the load characterization value of the target serving district got is higher than preset threshold, network reselection registration is enabled
It is resident with reselecting target serving district.
The specific embodiment of mobile terminal of the present invention and each specific embodiment of following cell selecting methods are essentially identical,
This is not repeated.
Embodiment to facilitate the understanding of the present invention, the communications network system that mobile terminal of the invention is based below into
Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes UE (User Equipment, the use of successively communication connection
Family equipment) (the land Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and preserves some related service features, data rates etc. and use
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address distribution and other functions, PCRF2036 are strategy and the charging control strategic decision-making of business data flow and IP bearing resource
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art should know the present invention is not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., herein without limitation.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each reality of cell selecting method of the present invention is proposed
Apply example.
The present invention provides a kind of cell selecting method.
It is the flow diagram of cell selecting method first embodiment of the present invention referring to Fig. 3, Fig. 3, which comprises
Step S10 obtains cell list to be selected, and includes at least two cells in the cell list；
The present embodiment cell selecting method can be applied to the mobile terminal devices such as mobile phone, tablet computer access cell base station clothes
During business.
Mobile terminal searches for the cell for meeting default cell selection criterion when carrying out network selection or gravity treatment first,
In, cell selection criterion can use cell selection criterion in the prior art, such as LTE (Long Term Evolution,
Long term evolution) S criterion under network, naturally it is also possible to use other cell selection criterions, when specific implementation can flexible setting.It moves
The detailed process that dynamic terminal searching meets the cell of default cell selection criterion can refer to the prior art, not repeat herein.
Mobile terminal obtains a cell list to be selected according to mentioned above searching results, if in the cell list only
One cell, then mobile terminal can be directly resident using the cell as target serving district, if wrapping in the cell list
At least two cells are included, then execute following steps S20.
Step S20 obtains the current signal strength value of each cell in the cell list, and resident from preset cell
The historic load characterization information of each cell is read in information bank, the historic load characterization information is for characterizing cell
Historic load situation；
If in cell list including at least two cells, mobile terminal needs are selected from least two cell
One target serving district is resident, is specifically chosen mode are as follows:
Obtain the current signal strength value of each cell in cell list first, the detection of the current demand signal intensity value can be with
The detection mode of cell signal strength value is not repeated herein referring to mobile terminal in the prior art；Meanwhile mobile terminal from
The historic load characterization information of each cell is read in preset presence information library, the historic load characterization information is small for characterizing
The historic load situation in area, and load information of the historic load characterization information by acquisition cell within the past period
And it obtains.
For example, when including two cells in cell list: when cell A and cell B, available cell A and cell B are only
Then one identification information reads going through for cell A and cell B according to the unique identification information respectively from preset presence information library
History loads characterization information.
Specifically, above-mentioned historic load characterization information can for mobile terminal mobile network's transmission rate (including upload
Rate and downloading rate), since under normal circumstances, mobile network's transmission rate is higher, show that the cell of mobile terminal access is negative
Load is lighter, and mobile network's transmission rate is lower, shows that the cell load of mobile terminal access is heavier, therefore, can will move eventually
Historic load characterization information of the mobile network's transmission rate at end as cell.It certainly, can also in addition to mobile network's transmission rate
Using the historic load characterization information by other parameters as cell, for example, mobile terminal can be current from network side acquisition cell
Load parameter, the load parameter that then will acquire is as historic load characterization information corresponding with the cell, specific implementation
When can flexible setting.
It should be noted that mobile terminal can be read when reading its historic load characterization information for a certain cell
The historic load characterization information of all cells being stored in presence information library can also only read in the past period and move
The historic load characterization information of the dynamic collected cell of terminal can also only read point mobile terminal acquisition in those years
The historic load characterization information of the cell arrived, when specific implementation, can flexible settings.
Step S30, it is corresponding to calculate each cell according to the current signal strength value and the historic load characterization information
Priority value；
The current signal strength value of each cell in getting cell list, and read the historic load of each cell
After characterization information, mobile terminal corresponds to according to the current demand signal intensity value and historic load characterization information and calculates each cell
Priority value.
By taking historic load characterization information is mobile network's transmission rate as an example, the mode for calculating priority value can be with are as follows: will
Current signal strength value and mobile network's transmission rate, which substitute into preset priority value calculations function, to be calculated, to obtain
Corresponding priority value.It should be noted that persistent district should have to guarantee that mobile terminal can get preferable service
There is stronger signal strength, mobile network's transmission rate should be higher, for this purpose, can be by priority value calculations function setup
The increasing function of current signal strength value, the subtraction function of mobile network's transmission rate, it is possible thereby to guarantee higher small of priority value
The corresponding service quality in area is better.
The priority value for each cell being calculated is compared by step S40, selects the maximum cell of priority value
It is resident as target serving district.
After the priority value that each cell is calculated, mobile terminal is by the priority for each cell being calculated
Value is compared, and the maximum cell of priority value is selected to be resident as target serving district, wherein mobile terminal access
The detailed process of target serving district can refer to the prior art, not repeat herein.
In the present embodiment, when mobile terminal carries out cell selection, by obtain each cell current signal value and
Historic load characterization information, and then the preferential of each cell is calculated according to the current signal value and historic load characterization information are corresponding
Grade value, and the maximum cell of final choice priority value is resident as target serving district.In compared with the prior art only
Cell is selected by the current signal value of cell, present invention combination cell current signal value and the selection of historic load characterization information are small
Area realizes the reasonable selection of cell, avoids the cell that mobile terminal retention signal is compared with strong and active service quality is bad.
It further, is the flow diagram of cell selecting method second embodiment of the present invention referring to Fig. 4, Fig. 4.Based on upper
Embodiment shown in Fig. 3 is stated, before step S10, can also include:
Step S50 establishes cell presence information library；
Step S60 records the mobile terminal and is being resident the cell when detecting that mobile terminal is resident a certain cell
Mobile network's transmission rate in the process, mobile network's transmission rate are used to characterize the historic load situation of the cell；
The resident cell of the mobile terminal and corresponding network transmission speed are saved to the cell and are stayed by step S70
It stays in information bank.
In the present embodiment, mobile terminal can recorde and save the history presence information of the past period, as working as
The reference of preceding cell load.Such as A cell, if recording its certain time period (such as early busy, late busy time gone over three days
Section) its load is higher, then it may infer that A cell is also higher in the load of today same period.
When obtaining the history presence information of the past period, mobile terminal can pre-establish the resident letter of a cell
Library is ceased, which is resident during situation and persistent district for recording and saving the past cell of mobile terminal
Mobile network's transmission rate, wherein the detection mode of mobile network's transmission rate can refer to the prior art；When detecting movement
When terminal is resident a certain cell, mobile network transmission rate of mobile terminal during being resident the cell, the mobile network are recorded
Network transmission rate is used to characterize the historic load situation of cell；Then the cell and corresponding network transmission mobile terminal being resident
Rate is saved into cell presence information library.Hereby it is achieved that the history presence information of mobile terminal the past period
Record.
The reference that the present embodiment selects the history presence information of mobile terminal as current area, due to for a certain small
Area, load generally has certain regularity, such as higher in daily early busy and late busy time section load, for another example public place
The cell load at (airport, station etc.) is generally higher than other cells, and therefore, history presence information can reflect small to a certain extent
The current loading condition in area, so that it is reasonable for selecting the cell to be currently resident according to history presence information.
When the subsequent historic load characterization information for reading each cell from preset cell presence information library, make
For a kind of embodiment, which may include: the current system time of the acquisition mobile terminal, and when the determining system
Between locating the first preset time period；It is each small in first preset time period from being read in preset cell presence information library
Mobile network's transmission rate in area；At this time according to the current signal strength value and the historic load characterization information, to accrued
The step of calculating the priority value of each cell includes: to seek mobile network in first preset time period for each cell
First average value of transmission rate；It is corresponding to calculate each cell according to the current signal strength value and first average value
Priority value.
For example, then mobile terminal is resident from cell when current system time is in preset time period 8:00~10:00
Mobile network's transmission rate of each cell during reading daily 8:00~10:00 in information bank, then, for each cell,
Calculate the average value of its mobile network's transmission rate during daily 8:00~10:00, and then working as according to each cell
Front signal intensity value and the corresponding priority value for calculating each cell of mobile network's transmission rate average value.
Further, above-mentioned according to the current signal strength value and first average value, it is corresponding to calculate each cell
The mode of priority value can be with are as follows: according to the current signal strength value, first average value and preset first preferential
Grade value calculates function, the corresponding priority value for calculating each cell, wherein the first priority value calculations function is described works as
The increasing function of front signal intensity value, and be the subtraction function of first average value.
For example, the first priority value calculations function can be set are as follows: priority value=current signal strength value-is averagely moved
Dynamic network transmission speed × predetermined coefficient.Certainly, as long as those skilled in the art are it should also be appreciated that be able to satisfy " the first priority
Value calculate function be the current signal strength value increasing function, and be first average value subtraction function " restriction it is excellent
First grade value calculates function and is all possible.
By using the average value of mobile network's transmission rate in the first preset time period as the historic load situation of cell
Characterization, avoid the influence that mobile network's transmission rate fluctuates in a short time, improve the accuracy of priority value calculations.
Further, as another embodiment, it is described read from preset cell presence information library it is described each
When the step of historic load characterization information of cell can also include: that reading second is default from preset cell presence information library
Between in section each cell mobile network's transmission rate；It is characterized at this time according to the current signal strength value and the historic load
The step of information, the corresponding priority value for calculating each cell includes: to seek second preset time period for each cell
Second average value of interior mobile network's transmission rate；According to the current signal strength value and second average value, to accrued
Calculate the priority value of each cell.
For example, mobile terminal can be passed from the mobile network for reading each cell in one week in the past in cell presence information library
Then defeated rate for each cell, calculates the average value of its mobile network's transmission rate within past one week, and then
According to the current signal strength value of each cell and the corresponding priority for calculating each cell of mobile network's transmission rate average value
Value.Wherein, the calculating function of the second priority value is similar with above-mentioned first priority value calculations function, and when specific implementation can be flexible
Setting.
Similarly, by using the average value of mobile network's transmission rate in the second preset time period as the historic load of cell
The characterization of situation avoids the influence that mobile network's transmission rate fluctuates in a short time, improves the standard of priority value calculations
True property.
Further, the above embodiments are based on, it, can be comprising steps of when unread to described before step S40
When the historic load characterization information of each cell, the present load characterization value of each cell is obtained from network side；According to institute
State current signal strength value and the present load characterization value, the corresponding priority value for calculating each cell.
In view of the change in user geographical location, for acquisition for mobile terminal to cell list to be selected, in cell
The historic load characterization information corresponding with each cell in the list may be can not find in presence information library, at this point, mobile
Terminal can obtain the present load characterization value of each cell from the Cell Broadcast CB received, then further according to the current letter
Number intensity value and the present load characterization value, the corresponding priority value for calculating each cell.
Further, above-mentioned according to the current signal strength value and the present load characterization value, it is corresponding to calculate each
The step of priority value of cell may include: according to the current signal strength value, the present load characterization value and to preset
The second priority value calculations function, the corresponding priority value for calculating each cell, wherein the second priority value calculations letter
Number is the increasing function of the current signal strength value, and is the subtraction function of the present load characterization value.
The present embodiment cannot obtain the historic load table of each cell when mobile terminal from the historical information that itself is saved
, can be from the present load characterization value for directly reading network side when reference ceases, and then according to current signal strength value and described work as
Preceding load characterization value, the corresponding priority value for calculating each cell, in this way, for priority value calculating provide it is more
Kind approach, ensure that the reasonable selection to cell.
It further, is the flow diagram of cell selecting method 3rd embodiment of the present invention referring to Fig. 5, Fig. 5.Based on upper
The embodiment stated can also include: after the step s 40
Step S80 obtains the load characterization value of the target serving district every preset duration from network side；
Step S90 enables network when the load characterization value of the target serving district got is higher than preset threshold
Gravity treatment registration is resident with reselecting target serving district.
It in the present embodiment, can be every preset duration from network after mobile terminal selection target serving cell is resident
Side obtains the load characterization value of the target serving district, and judges whether the load characterization value got is higher than preset threshold；When
When the load characterization value of the target serving district got is higher than preset threshold, it is numerous to illustrate that target serving district is currently at
Busy condition, mobile terminal enables network reselection registration and is resident with reselecting target serving district at this time.Pass through this side
Formula enhances the flexibility of cell selection, is conducive to promote usage experience of the user based on mobile terminal.
The present invention also provides a kind of computer readable storage mediums.
Cell selection procedure is stored on computer readable storage medium of the present invention, the cell selection procedure is by processor
The step of cell selecting method as described above is realized when execution.
Wherein, the cell selection procedure run on the processor, which is performed realized method, can refer to the present invention
Cell selecting method embodiment, details are not described herein again.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of cell selecting method, which is characterized in that the cell selecting method includes the following steps:
Cell list to be selected is obtained, includes at least two cells in the cell list；
The current signal strength value of each cell in the cell list is obtained, and is read from preset cell presence information library
The historic load characterization information of each cell, the historic load characterization information are used to characterize the historic load feelings of cell
Condition；
According to the current signal strength value and the historic load characterization information, the corresponding priority value for calculating each cell；
The priority value for each cell being calculated is compared, selects the maximum cell of priority value as destination service
Cell is resident.
2. cell selecting method as described in claim 1, which is characterized in that described the step of obtaining cell list to be selected
Before, further includes:
Establish cell presence information library；
When detecting that mobile terminal is resident a certain cell, movement of mobile terminal during being resident the cell is recorded
Network transmission speed, mobile network's transmission rate are used to characterize the historic load situation of the cell；
The resident cell of the mobile terminal and corresponding network transmission speed are saved into cell presence information library.
3. cell selecting method as claimed in claim 2, which is characterized in that described to be read from preset cell presence information library
The step of taking the historic load characterization information of each cell include:
The current system time of the mobile terminal is obtained, and determines the first preset time period locating for the system time；
Speed is transmitted from the mobile network for reading each cell in first preset time period in preset cell presence information library
Rate；
It is described according to the current signal strength value and the historic load characterization information, the corresponding priority for calculating each cell
The step of value includes:
For each cell, the first average value of mobile network's transmission rate in first preset time period is sought；
According to the current signal strength value and first average value, the corresponding priority value for calculating each cell.
4. cell selecting method as claimed in claim 3, which is characterized in that described according to the current signal strength value and institute
State the first average value, the step of corresponding priority value for calculating each cell includes:
According to the current signal strength value, first average value and preset first priority value calculations function, to accrued
Calculate the priority value of each cell, wherein the first priority value calculations function is the increasing letter of the current signal strength value
Number, and be the subtraction function of first average value.
5. cell selecting method as claimed in claim 2, which is characterized in that described to be read from preset cell presence information library
The step of taking the historic load characterization information of each cell include:
Mobile network's transmission rate of each cell in the second preset time period is read from preset cell presence information library；
It is described according to the current signal strength value and the historic load characterization information, the corresponding priority for calculating each cell
The step of value includes:
For each cell, the second average value of mobile network's transmission rate in second preset time period is sought；
According to the current signal strength value and second average value, the corresponding priority value for calculating each cell.
6. cell selecting method as described in claim 1, which is characterized in that each cell that will be calculated it is preferential
Grade value is compared, before selecting the maximum cell of priority value to carry out resident step as target serving district, further includes:
When the unread historic load characterization information to each cell, the current of each cell is obtained from network side
Load characterization value；
According to the current signal strength value and the present load characterization value, the corresponding priority value for calculating each cell.
7. cell selecting method as claimed in claim 6, which is characterized in that described according to the current signal strength value and institute
State present load characterization value, the step of corresponding priority value for calculating each cell includes:
It is right according to the current signal strength value, the present load characterization value and preset second priority value calculations function
The priority value of each cell should be calculated, wherein the second priority value calculations function is the current signal strength value
Increasing function, and be the subtraction function of the present load characterization value.
8. the cell selecting method as described in any one of claims 1 to 7, which is characterized in that the cell selecting method is also
Include:
The load characterization value of the target serving district is obtained from network side every preset duration；
When the load characterization value of the target serving district got is higher than preset threshold, network reselection registration is enabled with weight
New selection target serving cell is resident.
9. a kind of mobile terminal, which is characterized in that the mobile terminal includes: memory, processor and is stored in the storage
It is real when the cell selection procedure is executed by the processor on device and the cell selection procedure that can run on the processor
Now such as the step of cell selecting method described in any item of the claim 1 to 8.
10. a kind of computer readable storage medium, which is characterized in that be stored with cell choosing on the computer readable storage medium
Program is selected, realizes that cell described in any item of the claim 1 to 8 such as selects when the cell selection procedure is executed by processor
The step of method.
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