CN106358251A - Network switch method and terminal equipment - Google Patents
Network switch method and terminal equipment Download PDFInfo
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- CN106358251A CN106358251A CN201610742164.0A CN201610742164A CN106358251A CN 106358251 A CN106358251 A CN 106358251A CN 201610742164 A CN201610742164 A CN 201610742164A CN 106358251 A CN106358251 A CN 106358251A
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a network switch method and terminal equipment, comprising: The measurements on N adjacent regions within the adjacent region list to be measured are conducted by the terminal equipment and N is a positive integer; if the N measured values for adjacent regions are less than or equal to the first preset threshold, the terminal device searches the M frequency points corresponding to the N neighboring regions to acquire all the cells at the M frequency points , M is a positive integer less than or equal to N. According to the network switch method and terminal equipment, which can avoid the superfluous power consumption resulted from the direct search on all the cells of the various frequency points from network configuration conducted by the terminal equipment.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of method for switching network and terminal unit.
Background technology
Global system for mobile communications (English: global system for mobile communication, referred to as:
Gsm) system is one kind of second generation mobile communication system (2g), and WCDMA mobile communication system (English:
Wideband code division multiple access, referred to as: wcdma) it is 3-G (Generation Three mobile communication system) (3g)
One kind, gsm network is to build earliest one kind, and the network coverage is wider, using the teaching of the invention it is possible to provide the basis clothes such as more stable voice, note
Business, but its data service bearing capacity is poor.Present terminal unit generally can support multiple applications, covers in wcdma network
In the case of lid is preferable, the resident network to wcdma of terminal unit usually can obtain more preferable Consumer's Experience.
In practical application, operator can give gsm cell configuration wcdma adjacent area, once terminal unit enters into wcdma network
Cover preferable region, terminal unit just can by way of autonomous measurement, gravity treatment smoothly from gsm cell reselection to
Wcdma cell, thus obtain more preferable Consumer's Experience.
But in actual arranging net, it is understood that there may be some defects, such as, there is Universal Telecommunication Radio Access Network in a region
(English: universal telecommunication radio access network, referred to as: utran) signal covering, but
Network side is not added to the wcdma cell having signal in the Neighboring Cell List of gsm cell, but by some and gsm cell
In same frequency, the cell that do not have signal has been added in the Neighboring Cell List of gsm cell.This will lead to terminal unit once resident
Gsm cell, is difficult to gravity treatment by conventional methods to wcdma network.Terminal unit may be led to go out service area, networking speed slow
A series of situation etc. impact Consumer's Experience.
For example, network side is that the wcdma adjacent area of gsm cell configuration has: under f1 frequency scrambler be two of id11, id12 little
Under area and f2 frequency, scrambler is two cells of id21, id22.Assume that around a gsm cell, in esse wcdma is little
Area is that under f1 frequency, scrambler is two cells of id13, id14.The side of the available wcdma cell of terminal unit search in prior art
Formula is: resides in all wcdma frequencies of the terminal unit Measurement Network side configuration under Idle state on gsm network, that is to say
Say, terminal unit, after getting the wcdma adjacent area that network side issues, ignores the adjacent area scrambler of network side configuration under Idle state
Information, all cells under direct search f1 and f2 frequency.Prior art has the disadvantage that terminal unit direct search net
All cells under all frequencies of network side configuration can produce larger power consumption, is unfavorable for that the terminal unit of Idle state preferably saves
Electricity.
Content of the invention
Embodiments provide a kind of method for switching network and terminal unit, terminal unit can be avoided to directly search
The problem of larger power consumption caused by all cells under all frequencies of network configuration, is conducive to the more preferable power saving of terminal unit.
In a first aspect, a kind of the invention provides method for switching network.The method includes: terminal unit issues to network
N adjacent area in measurement Neighboring Cell List measures respectively, obtains n nearby region measurement value, and n is positive integer.If n nearby region measurement
Value is respectively less than or is equal to the first predetermined threshold value, and to n adjacent area, corresponding m frequency scans for terminal unit, m frequency of acquisition
Under all cells, wherein m is the positive integer less than or equal to n.When terminal unit is to n adjacent area in measurement Neighboring Cell List
When measured value is below the first predetermined threshold value, in other words, when the adjacent area that terminal unit judges network configuration does not all have energy
Or when energy is relatively low, in order to ensure that terminal unit may search for efficient cell, just terminal unit triggers to network configuration
Adjacent area frequency scans for, rather than all cells on the adjacent area frequency of direct search network configuration, reduces terminal unit
Power consumption, is conducive to the more preferable power saving of terminal unit.
In conjunction with a first aspect, in the first implementation of first aspect, terminal unit is to corresponding m of n adjacent area
Frequency scans for, and before obtaining all cells under m frequency, terminal unit also measures respectively to this m frequency, obtains
Frequency measured value to each frequency.If n nearby region measurement value is respectively less than or is equal to the mesh in the first predetermined threshold value and m frequency
The frequency measured value of mark frequency is more than or equal to the second predetermined threshold value, and terminal unit scans for target frequency, obtains target
All cells under frequency.Terminal unit can identify that network is arranged net exception.I.e. terminal unit judges the adjacent area of network configuration
When all not having energy or energy relatively low, can determine whether out may be available little with the presence or absence of other in surrounding
Area.When the energy of a certain frequency is higher, you can to judge may have available cell on this frequency, terminal unit is only having it
In the case of his available cell, start all cells searched under this frequency.Permissible in the case of there is no other available cell
Reduce invalid search behavior, reduce power consumption.And, search only for the whole cells under the larger target frequency of frequency measured value,
And the cell under other less frequencies of frequency measured value is not scanned for, thus reducing the search behavior to invalid frequency,
Reduce power consumption.
In conjunction with a first aspect, or first aspect the first implementation, in the second implementation of first aspect,
Terminal unit execution cell reselection process is described.To n adjacent area, corresponding m frequency scans for terminal unit, obtains
After obtaining all cells under m frequency, all cells that terminal unit is directed under m frequency measure, and obtain o adjacent area
Measured value, o is the positive integer more than n.Terminal unit selects the target meeting cell re-selection conditions little according to o nearby region measurement value
Area.Terminal unit gravity treatment is to Target cell, if to Target cell failure and Target cell is measurement adjacent area row for terminal unit gravity treatment
Other adjacent areas beyond adjacent area in table, terminal unit refuses gravity treatment again to Target cell in Preset Time.In other words,
During the situation of other cell reselection failures outside the Neighboring Cell List that terminal unit runs into network configuration in gravity treatment, just for failure
Cell punished, do not affect the gravity treatment behavior with other cells of frequency with the cell of failure, therefore to other with frequency
Cell negative effect little.
Second aspect, the invention provides a kind of terminal unit, comprising: processor, memorizer and radio-frequency module.Wherein,
Memorizer is used for storing network switching program code, and processor is used for calling network switching program code, and executes following operation:
N adjacent area in the measurement Neighboring Cell List that processor is issued to network by radio-frequency module measures respectively, obtains n adjacent area
Measured value, n is positive integer.If n nearby region measurement value is respectively less than or is equal to the first predetermined threshold value, processor passes through radio-frequency module pair
The corresponding m frequency in n adjacent area scans for, and obtains all cells under m frequency, m is the positive integer less than or equal to n.
When terminal unit is below the first predetermined threshold value to the measured value of n adjacent area in measurement Neighboring Cell List, in other words, work as end
When end equipment judges that the adjacent area of network configuration does not all have energy or energy relatively low, in order to ensure that terminal unit may search for
Efficient cell, terminal unit just triggers the adjacent area frequency to network configuration and scans for, rather than the neighbour of direct search network configuration
All cells on area's frequency, reduce the power consumption of terminal unit, are conducive to the more preferable power saving of terminal unit.
In conjunction with second aspect, in the first implementation of second aspect, processor passes through radio-frequency module to n adjacent area
Corresponding m frequency scans for, and before obtaining all cells under m frequency, processor is also by radio-frequency module to this m
Frequency measures respectively, obtains the frequency measured value of each frequency.If n nearby region measurement value is respectively less than or is equal to first presetting
The frequency measured value of the target frequency in threshold value and m frequency is more than or equal to the second predetermined threshold value, and processor passes through radio frequency mould
Block scans for target frequency, obtains all cells under target frequency.Terminal unit can identify that network is arranged net exception.I.e.
When terminal unit judges that the adjacent area of network configuration does not all have energy or energy relatively low, surrounding can be determined whether out
In may available cell with the presence or absence of other.When the energy of a certain frequency is higher, you can to judge may have on this frequency
Available cell, terminal unit, only in the case of having other available cell, starts all cells searched under this frequency.Do not having
Invalid search behavior can be reduced in the case of having other available cell, reduce power consumption.And, search only for frequency measured value relatively
Whole cells under big target frequency, and the cell under other less frequencies of frequency measured value is not scanned for, thus
Reduce the search behavior to invalid frequency, reduce power consumption.
In conjunction with second aspect, or the first implementation of second aspect, in the second implementation of second aspect,
Terminal unit execution cell reselection process is described.By radio-frequency module, to n adjacent area, corresponding m frequency enters processor
Line search, after obtaining all cells under m frequency, processor is directed to all cells under m frequency by radio-frequency module
Measure, obtain o nearby region measurement value, o is the positive integer more than n.Processor meets little according to o nearby region measurement value selection
The Target cell of area's reselection conditions.Processor passes through radio-frequency module gravity treatment to Target cell, if gravity treatment to Target cell unsuccessfully and
Target cell is other adjacent areas beyond the adjacent area in measurement Neighboring Cell List, and processor control terminal equipment is refused in Preset Time
Exhausted gravity treatment again is to Target cell.In other words, other outside the Neighboring Cell List that terminal unit runs into network configuration in gravity treatment
During the situation of cell reselection failure, the cell just for failure is punished, do not affect with the cell of failure with frequency other are little
The gravity treatment behavior in area, therefore little with the negative effect of the cell under frequency to other.
The third aspect, embodiments provides a kind of terminal unit, including the first measurement module and search module.Its
In, the first measurement module, the n adjacent area in Neighboring Cell List that measure for issuing to network measures respectively, obtains n neighbour
Region measurement value, n is positive integer；Search module, if the n nearby region measurement value obtaining for the first measurement module is respectively less than or is equal to
First predetermined threshold value, to n adjacent area, corresponding m frequency scans for, and obtains all cells under m frequency, m be less than or
Positive integer equal to n.When terminal unit is below the first predetermined threshold value to the measured value of n adjacent area in measurement Neighboring Cell List
When, in other words, when the adjacent area that terminal unit judges network configuration does not all have energy or energy relatively low, in order to ensure end
End equipment may search for efficient cell, and terminal unit just triggers the adjacent area frequency to network configuration and scans for, and non-immediate
All cells on the adjacent area frequency of search network configuration, reduce the power consumption of terminal unit, are conducive to terminal unit more preferable
Power saving.
In conjunction with the third aspect, in the first implementation of the third aspect, also include: the second measurement module, for m
Individual frequency measures respectively, obtains the frequency measured value of each frequency；Search module specifically for: if the first measurement module obtains
To n nearby region measurement value be respectively less than or be equal to the target in the m frequency that the first predetermined threshold value and the second measurement module obtain
The frequency measured value of frequency is more than or equal to the second predetermined threshold value, then target frequency is scanned for, and obtains under target frequency
All cells.Terminal unit can identify that network is arranged net exception.I.e. terminal unit judges that the adjacent area of network configuration does not all have energy
When amount or energy are relatively low, can determine whether out in surrounding, to whether there is other possible available cells.When a certain
When the energy of frequency is higher, you can to judge may have available cell on this frequency, terminal unit is only having other available little
In the case of area, start all cells searched under this frequency.It is invalid to reduce in the case of not having other available cell
Search behavior, reduce power consumption.And, search only for the whole cells under the larger target frequency of frequency measured value, and to other
Cell under the less frequency of frequency measured value does not scan for, thus reducing the search behavior to invalid frequency, reduces power consumption.
In conjunction with the third aspect, or the first implementation of the third aspect, in the second implementation of the third aspect,
Also include: the 3rd measurement module, for measuring for all cells under m frequency, obtain o nearby region measurement value, o is
Positive integer more than n；Selecting module, the o nearby region measurement value for being obtained according to the 3rd measurement module selects to meet cell weight
Select the Target cell of condition；Gravity treatment module, for control terminal equipment gravity treatment to Target cell, if gravity treatment is to Target cell failure
And Target cell is other adjacent areas beyond the adjacent area in measurement Neighboring Cell List, control terminal equipment is refused in Preset Time again
Secondary gravity treatment is to Target cell.In other words, other cells outside Neighboring Cell List that terminal unit runs into network configuration in gravity treatment
During the situation of gravity treatment failure, the cell just for failure is punished, does not affect with the cell of failure with other cells of frequency
Gravity treatment behavior, therefore little with the negative effect of the cell under frequency to other.
Fourth aspect, also provides a kind of computer-readable storage medium in the embodiment of the present invention, and this storage medium can be non-easy
The property lost, that is, after power-off, content is not lost.Software program is stored, this software program is by one or more places in this storage medium
Reason device can achieve any one implementation offer of first aspect or above-mentioned first aspect method when reading and executing.
In conjunction with above-mentioned any aspect, in some implementations of the present invention, the currently resident cell of terminal unit is gsm
Cell, n adjacent area is wcdma cell.
In conjunction with above-mentioned any aspect, in some implementations of the present invention, nearby region measurement value refers to received signal code power
(English: received signal code powe, referred to as: rscp), what it reacted is reception in this cell for the terminal unit
Energy.Frequency measured value refer to received signal strength (English: received signal strength indication, referred to as:
Rssi), what it reacted is reception energy on this frequency for the terminal unit.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the structural representation of terminal unit embodiment one provided in an embodiment of the present invention；
Fig. 2 be the present embodiments relate to application scenarios scene graph；
Fig. 3 is the schematic flow sheet of method for switching network provided in an embodiment of the present invention；
Fig. 4 is the structural representation of terminal unit embodiment two provided in an embodiment of the present invention.
Specific embodiment
The term that embodiments of the present invention part uses is only used for the specific embodiment of the present invention is explained, rather than
It is intended to limit the present invention.Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
It is explicitly described.Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
Method for switching network provided in an embodiment of the present invention is mainly used in terminal unit, and this terminal unit is also referred to as
User equipment (English: user equipment, referred to as: ue), mobile station (English: mobile station, referred to as: ms), move
Dynamic terminal (English: mobile terminal) etc..Optionally, this terminal unit can possess through wireless access network (English:
Radio access network, referred to as: the ran) ability being communicated with one or more core net.For example, terminal unit
Can be mobile phone (or referred to as " honeycomb " phone) or there is computer of mobile property etc..Terminal unit can also be just
Take formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device.It should be understood that except terminal unit with
Outward, method for switching network provided in an embodiment of the present invention can also be applied to other kinds of computer system.
Refer to Fig. 1, be the structural representation of terminal unit embodiment one provided in an embodiment of the present invention.In the present embodiment
Terminal unit 100 may include that at least one processor 101, radio-frequency module 102, antenna 103, memorizer 104, input defeated
Go out module (including audio input output module 105, keyboard input module 106 and display 107 etc.) and user interface 108.
In some embodiments of the invention, these parts can be connected by bus or alternate manner.Wherein, radio-frequency module 102 wraps
Include radio-frequency front-end (English: radio frequency front end, referred to as: rffe) 1021 and RF IC (English:
Radio frequency integrated circuit, referred to as: rfic) 1022.
Processor 101 can be general processor, for example central processing unit (English: central processing
Unit, referred to as: cpu), can also be digital signal processor (English: digital signal processor, referred to as:
Dsp), special IC (English: application specific integrated circuit, referred to as: asic), or
Person is arranged to implement one or more integrated circuits of the embodiment of the present invention.Processor 101 can be processed by radio-frequency module
102 data receiving.Processor 101 also can process the number that will be sent to radio-frequency module 102 to transmit for use by antenna 103
According to.
Radio-frequency module 102 will transmit (transmitting path) after the transmission data modulation of processor 101 on antenna 103,
Or the signal of eating dishes without rice or wine receiving antenna 103 issues processor 101 for communication protocol processes (receiving path) after demodulating.
Rffe 1021 includes: duplexer and power amplifier (English: power amplifier, referred to as: pa), duplexer
For transmitting path and receiving path being all coupled to antenna 103 so that antenna 103 can send or receive or receive simultaneously
Send out.Pa is mainly used in sending signal power enlarging function in transmitting path, can to send out from antenna 103.
Rfic is modem module, in transmitting path by low frequency signal be changed into high frequency rf signal (i.e. up-conversion,
Its function be exactly by such as Fig. 1 upconverter realize), be additionally operable to by high frequency rf signal be demodulated into baseband signal (i.e. down coversion,
Its function is exactly to be realized by the low-converter in such as Fig. 1), up/down converter i.e. frequency mixer, by by high frequency rf signal with
Local oscillation signal mixing generates baseband signal, or baseband signal is generated high frequency rf signal with local oscillation signal mixing.
Receiving path may also include before demodulation low-noise amplifier (English: low noise amplifier,
Referred to as: lna), amplify for doing to receipt signal.
Bus can be industry standard architecture (English: industry standard architecture, referred to as:
Isa) bus, external equipment interconnection (English: peripheral component interconnect, referred to as: pci) bus or
Extension standards architecture (English: extended industry standard architecture, referred to as: eisa) bus
Deng.This bus can be divided into address bus, data/address bus, controlling bus etc..
Memorizer 104, for store program codes, and this program code is transferred to cpu.Memorizer 104 can include
Volatile memory (English: volatile memory), such as random access memory (English: random access
Memory, referred to as: ram).Memorizer can also include nonvolatile memory (English: non-volatile memory), example
As read only memory (English: read-only memory, referred to as: rom), flash memory (English: flash memory), hard
Disk (English: hard disk drive, referred to as: hdd) or solid state hard disc (English: solid-state drive, referred to as: ssd)；
Memorizer 104 can also include the combination of the memorizer of mentioned kind.Memorizer 104 is connected with processor 101 by bus.
Input/output module is mainly used in realizing the interactive function between terminal unit 100 and user/external environment condition, mainly
Including audio input output module 105, keyboard input module 106 and display 107 etc..In implementing, input and output mould
Block may also include that photographic head, touch screen and sensor etc..Wherein, input/output module is all by user interface 108 and place
Reason device 101 is communicated.
Refer to Fig. 2, for the present embodiments relate to Application Scenarios-Example figure.In fig. 2, communication system 200 includes
Terminal unit 201, gsm cell 202, wcdma cell 203, wcdma cell 204, wcdma cell 205, wcdma cell 206,
Wcdma cell 207 and wcdma cell 208.Wherein, terminal unit 201 is currently resident in gsm cell 202, and network side is gsm
The wcdma adjacent area of cell 202 configuration has 4, is respectively as follows: wcdma cell 203, wcdma cell 204, wcdma cell 205 and
Wcdma cell 206.Wherein, the frequency at wcdma cell 203 and 204 two cells places of wcdma cell is f1 frequency, and assumes
The scrambler of this two cells is respectively id11, id12.Wcdma cell 205 and the frequency at 206 two cells places of wcdma cell
For f2 frequency, and assume that the scrambler of this two cells is respectively id21, id22.Assume in esse around gsm cell 202
Wcdma cell is two cells that under f1 frequency, scrambler is respectively id13, id14, is respectively as follows: wcdma cell 207 and wcdma is little
Area 208.
Refer to Fig. 3, be the schematic flow sheet of method for switching network provided in an embodiment of the present invention, the method include but not
It is limited to following steps.
N adjacent area in the measurement Neighboring Cell List that s301: terminal unit issues to network measures respectively, obtains n
Nearby region measurement value.
Wherein, n is positive integer.Terminal unit can obtain neighbour from the system message of currently resident cell broadcast service
Region measurement configuration information, grouping mea-sure order (English: the packet that terminal unit can also send from Serving cell
Measurement order, referred to as: pmo) obtain nearby region measurement configuration information in message.Specifically, if terminal unit is in
Idle state (English: idle), then terminal unit obtains nearby region measurement configuration information from the system message of cell broadcast service；As
Fruit terminal unit is in transmitting state, then terminal unit can obtain nearby region measurement configuration from the system message of cell broadcast service
Information, if issued pmo message modification neighbor cell configuration in transmitting state lower network, then terminal unit can also disappear from pmo
Nearby region measurement configuration information is obtained in breath.Nearby region measurement configuration information includes measuring Neighboring Cell List.Remember in measurement Neighboring Cell List
Record has the information of the adjacent area of the currently resident Serving cell of terminal unit.This adjacent area can also be that the same standard of Serving cell is little
Area or the different standard cell of Serving cell.For example, the terminal unit described in the embodiment of the present invention is currently resident
Serving cell is gsm cell, and adjacent area is wcdma cell.Terminal unit is according to the nearby region measurement configuration information getting to service
Each adjacent area of cell measures, and obtains the measured value of each adjacent area.
For example, for application scenarios shown in Fig. 2, the currently resident Serving cell of terminal unit 201 is gsm cell 202.Net
Network is to include 4 adjacent areas, respectively wcdma cell 203, wcdma cell altogether in the measurement Neighboring Cell List that gsm cell 202 configures
204th, wcdma cell 205 and wcdma cell 206.Terminal unit 201 gets measurement from currently resident gsm cell 202 and joins
After confidence breath, gsm cell 202 is measured, and executes above-mentioned 4 wcdma adjacent cells are measured, obtain each adjacent area
Corresponding nearby region measurement value.Assume that terminal unit is respectively as follows: rscp to the measured value of above-mentioned 4 wcdma cells203=-
110dbm、rscp204=-120dbm, rscp205=-125dbm, rscp206=-134dbm.
S302: terminal unit judges whether above-mentioned n nearby region measurement value is respectively less than or is equal to the first predetermined threshold value, if so,
Execution step s303；If it is not, process ends, or returning execution s301, the embodiment of the present invention taking process ends is as a example entered
Row explanation.
Wherein, the first predetermined threshold value can be specified by system protocol.
For example, the first predetermined threshold value is -106dbm.The measured value of 4 wcdma adjacent areas to gsm cell 202 for the terminal unit
It is respectively as follows: rscp203=-110dbm, rscp204=-120dbm, rscp205=-125dbm, rscp206=-134dbm, then terminal
Equipment judges to the measured value of this 4 wcdma adjacent areas successively, finally judges that the measured value of this 4 wcdma adjacent areas is all little
In -106dbm.Or, terminal unit first determines that the maximum of the measured value of this 4 wcdma adjacent areas is -110dbm, then judges
Whether maximum is less than -106dbm, finally judges that the measured value of this 4 wcdma adjacent areas is respectively less than -106dbm.
To n adjacent area, corresponding m frequency scans for s303: terminal unit, obtains all cells under m frequency.
Wherein m is the positive integer less than or equal to n.When terminal unit judges the measured value of n adjacent area of network configuration
When being respectively less than or being equal to the first predetermined threshold value, in other words, when the adjacent area that terminal unit judges network configuration does not all have energy
Or when energy is relatively low, in order to ensure that terminal unit may search for efficient cell, just terminal unit triggers to network configuration
Adjacent area frequency scans for, rather than all cells on the adjacent area frequency of direct search network configuration, reduces terminal unit
Power consumption, is conducive to the more preferable power saving of terminal unit.
For example, for application scenarios shown in Fig. 2, network is to include 4 altogether in the measurement Neighboring Cell List that gsm cell 202 configures
Individual adjacent area, respectively wcdma cell 203, wcdma cell 204, wcdma cell 205 and wcdma cell 206.Wherein, wcdma
The frequency at cell 203 and this two cells places of wcdma cell 204 is f1 frequency, wcdma cell 205 and wcdma cell 206
The frequency that this two cells are located is f2 frequency.Then m is 2.When terminal unit 201 judges this 4 adjacent areas of network configuration
When measured value is respectively less than or is equal to -106dbm, terminal unit scans for frequency f1 and frequency f2, the institute under search frequency f1
There are all cells under cell and f2 frequency, finally, the efficient cell that terminal unit searches is scrambler difference under f1 frequency
Two cells for id13, id14, are respectively as follows: wcdma cell 207 and wcdma cell 208.In embodiments of the present invention, effectively
Cell can be understood as terminal unit and it measured with the cell that the measured value obtaining is higher than a certain thresholding.
As a kind of optional implementation, to n adjacent area, corresponding m frequency scans for terminal unit, obtains m
Before all cells under frequency, terminal unit also measures respectively to this m frequency, obtains the frequency measurement of each frequency
Value, frequency measured value can be embodied by rssi value.If n nearby region measurement value is respectively less than or is equal to the first predetermined threshold value and m
The frequency measured value of the target frequency in individual frequency is more than or equal to the second predetermined threshold value, and terminal unit is searched to target frequency
Rope, obtains all cells under target frequency.
Here, the second predetermined threshold value can be specified by system protocol.Wherein, terminal unit measures to n adjacent area
To n nearby region measurement value and terminal unit, m frequency is measured obtain this two steps of m frequency measured value can be simultaneously
Carry out it is also possible to separately carry out, and when separately carrying out, do not limit the sequencing of execution.Measurement Neighboring Cell List when network configuration
In do not have efficient cell and adjacent area frequency rssi higher in the case of, terminal unit starts all little under searching neighboring area frequency
Area.
For example, the second predetermined threshold value is -90dbm.Under transmitting state or Idle state, terminal unit initial start-up nearby region measurement
When still Measurement Network configuration 4 wcdma adjacent areas.Only measure wcdma cell 203, wcdma cell 204, wcdma cell
This 4 cells of 205 and wcdma cells 206.The rssi of corresponding frequency f1 and f2 is obtained while measuring this 4 cells.Terminal
Equipment measures to f1 frequency and f2 frequency, obtains the rssi value of f1 frequency and f2 frequency it is assumed that the rssi value of f1 frequency
For -65dbm, the rssi value of f2 frequency is -120dbm, then terminal unit may determine that the survey of 4 adjacent areas of gsm cell 202
Value is respectively less than -106dbm and the measured value of target frequency f1 is more than -90dbm, and the measured value of f2 frequency is less than -90dbm, then
Terminal unit only scans for target frequency f1, all cells under search f1 frequency, and f2 frequency is not scanned for,
Invalid search behavior can be reduced in the case of not having other available cell, reduce power consumption.
By executing above-mentioned steps, terminal unit can identify that network is arranged net exception.I.e. terminal unit judges that network is joined
When the adjacent area put all does not have energy or energy relatively low, can determine whether out can with the presence or absence of other possibility in surrounding
Cell.When the energy of a certain frequency is higher, you can to judge may have available cell on this frequency, terminal unit is only
In the case of having other available cell, start all cells searched under this frequency.And, it is larger to search only for frequency measured value
Target frequency under whole cells, and the cell under other less frequencies of frequency measured value is not scanned for, thus subtracting
Few search behavior to invalid frequency, reduces power consumption.
As a kind of optional implementation, to n adjacent area, corresponding m frequency scans for terminal unit, obtains m
After all cells under frequency, all cells that terminal unit is directed under m frequency measure, and obtain o nearby region measurement
Value, o is the positive integer more than n.Terminal unit selects to meet the Target cell of cell re-selection conditions according to o nearby region measurement value.
Terminal unit gravity treatment is to Target cell, if to Target cell failure and Target cell is in measurement Neighboring Cell List for terminal unit gravity treatment
Adjacent area beyond other adjacent areas, terminal unit refuses gravity treatment again to Target cell in Preset Time.Wherein, m frequency
Under all cells in both included the adjacent area that network configures for Serving cell, also include network be not Serving cell configuration
And be located at terminal unit present position around cell.
When terminal unit carries out reselection evaluation, reselection evaluation is carried out together to all cells under m frequency, that is, be directed to m
All cells under individual frequency treat that the cell of gravity treatment selects.If having arbitrary in the efficient cell searching from m frequency
The measurement result of cell persistently meets the gravity treatment thresholding of network configuration, then go to the reuse adoption process of this cell.Cell reselection is advised
Then belong to prior art, this place does not repeat.
For example, for application scenarios shown in Fig. 2, terminal unit 201 to 2 efficient cells searching under f1 frequency and
4 cells of network configuration carry out reselection evaluation together, and the cell searching in f1 frequency and the cell of network configuration are simultaneously
The cell treating gravity treatment is concentrated to select.If the measurement having arbitrary cell in 2 efficient cells searching from f1 frequency is tied
Fruit persistently meets the gravity treatment thresholding of network configuration, then go to the reuse adoption process of this cell.If gravity treatment is in 2 efficient cells
The failure of arbitrary cell, then again reside in gsm cell 202.And the cell of gravity treatment failure is punished, that is, in a period of time
Do not allow gravity treatment again to this cell.Gravity treatment failure cause and corresponding Penalty time are as follows: assume that terminal unit 201 attempts weight
Choose Target cell wcdma cell 207, refused by wcdma cell 207 in the event of during terminal unit 201 registration, then terminal sets
Standby 201 did not allow gravity treatment again to this cell in 20 minutes.But do not interfere with the gravity treatment of other cells under identical frequency.Assume
Terminal unit 201 attempts gravity treatment to Target cell wcdma cell 208, when the public land judging this wcdma cell 208 moves
Dynamic network (English: public land mobile network, referred to as: plmn) not currently resident gsm cell 202 etc.
In effect plmn list, then terminal unit 201 did not allow gravity treatment again to this cell in 20 minutes.But do not interfere with identical frequency
The gravity treatment of other cells lower.Wherein, it is in equivalent plmn list and be interpreted as that the plmn currently selected with terminal unit is in
The plmn of par, its priority is identical.
In other words, other cell reselections failure outside the Neighboring Cell List that terminal unit runs into network configuration in gravity treatment
During situation, the cell just for failure is punished, does not affect the gravity treatment behavior with other cells of frequency with the cell of failure, because
This is little with the negative effect of the cell under frequency to other.
It should be noted that the flow process of the judgement of above-mentioned nearby region measurement value and control measurement is mainly in terminal unit
Gsm Access Layer is implemented.
Refer to Fig. 4, be the structural representation of terminal unit embodiment two provided in an embodiment of the present invention.As shown in figure 4,
Terminal unit 40 includes: the first measurement module 401 and search module 402, wherein,
First measurement module 401, the n adjacent area in Neighboring Cell List that measure for issuing to network measures respectively,
Obtain n nearby region measurement value, n is positive integer；
Search module 402, if the n nearby region measurement value obtaining for the first measurement module 401 is respectively less than or is equal to first
Predetermined threshold value, to n adjacent area, corresponding m frequency scans for, and obtains all cells under m frequency, m be less than or equal to
The positive integer of n.
When terminal unit is below the first predetermined threshold value to the measured value of n adjacent area in measurement Neighboring Cell List, namely
It is to say, when the adjacent area that terminal unit judges network configuration does not all have energy or energy relatively low, in order to ensure terminal unit
May search for efficient cell, terminal unit just triggers the adjacent area frequency to network configuration and scans for, rather than direct search net
All cells on the adjacent area frequency of network configuration, reduce the power consumption of terminal unit, are conducive to the more preferable power saving of terminal unit.
Optionally, terminal unit 40 also includes:
Second measurement module, for measuring respectively to m frequency, obtains the frequency measured value of each frequency；
Search module 402 specifically for: if n nearby region measurement value obtaining of the first measurement module 401 is respectively less than or is equal to
The frequency measured value of the target frequency in the m frequency that the first predetermined threshold value and the second measurement module obtain is more than or equal to second
Predetermined threshold value, then scan for target frequency, obtains all cells under target frequency.
Terminal unit can identify that network is arranged net exception.I.e. terminal unit judges that the adjacent area of network configuration does not all have energy
Or when energy is relatively low, can determine whether out in surrounding, to whether there is other possible available cells.When a certain frequency
When the energy of point is higher, you can to judge may have available cell on this frequency, terminal unit is only having other available cell
In the case of, start all cells searched under this frequency.It is invalid to reduce in the case of not having other available cell
Search behavior, reduces power consumption.And, search only for the whole cells under the larger target frequency of frequency measured value, and to other frequencies
Cell under the point less frequency of measured value does not scan for, thus reducing the search behavior to invalid frequency, reduces power consumption.
Optionally, terminal unit 40 also includes:
3rd measurement module, for measuring for all cells under m frequency, obtains o nearby region measurement value, o
It is the positive integer more than n；
Selecting module, the o nearby region measurement value for being obtained according to the 3rd measurement module selects to meet cell re-selection conditions
Target cell；
Gravity treatment module, for control terminal equipment gravity treatment to Target cell, if to Target cell failure and target is little for gravity treatment
Area is other adjacent areas beyond the adjacent area in measurement Neighboring Cell List, and control terminal equipment is refused gravity treatment again in Preset Time and arrived
Target cell.
In other words, other cell reselections failure outside the Neighboring Cell List that terminal unit runs into network configuration in gravity treatment
During situation, the cell just for failure is punished, does not affect the gravity treatment behavior with other cells of frequency with the cell of failure, because
This is little with the negative effect of the cell under frequency to other.
It should be noted that the function of each functional module can be found in terminal unit 40 described in the embodiment of the present invention
The associated description of counterpart terminal equipment in above-mentioned embodiment illustrated in fig. 3, here is omitted.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.This journey
Sequence upon execution, executes the step including above-mentioned each method embodiment；And aforesaid storage medium includes: rom, ram, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (12)
1. a kind of method for switching network is it is characterised in that include:
N adjacent area in the measurement Neighboring Cell List that terminal unit issues to network measures respectively, obtains n nearby region measurement
Value, n is positive integer；
If described n nearby region measurement value is respectively less than or is equal to the first predetermined threshold value, described terminal unit corresponds to described n adjacent area
M frequency scan for, obtain described m frequency under all cells, m is the positive integer less than or equal to n.
2. method according to claim 1 it is characterised in that described terminal unit corresponding to described n adjacent area m frequency
Point scans for, and before obtaining all cells under described m frequency, also includes:
Described terminal unit measures respectively to described m frequency, obtains the frequency measured value of each frequency；
To described n adjacent area, corresponding m frequency scans for described terminal unit, obtains all little under described m frequency
Area, comprising:
If described n nearby region measurement value is respectively less than or is equal to the frequency of the target frequency in the first predetermined threshold value and described m frequency
Point measured value is more than or equal to the second predetermined threshold value, then described terminal unit scans for described target frequency, obtains described
All cells under target frequency.
3. method according to claim 1 and 2 is it is characterised in that described terminal unit m corresponding to described n adjacent area
Individual frequency scans for, and after obtaining all cells under described m frequency, also includes:
Described terminal unit be directed to described m frequency under all cells measure, obtain o nearby region measurement value, o be more than
The positive integer of n；
Described terminal unit selects to meet the Target cell of cell re-selection conditions according to described o nearby region measurement value；
Described terminal unit gravity treatment is to described Target cell, if described terminal unit gravity treatment is to the failure of described Target cell and described
Target cell is other adjacent areas beyond the adjacent area in described measurement Neighboring Cell List, and described terminal unit is refused in Preset Time
Gravity treatment is to described Target cell again.
4. the method according to any one of Claims 1-4 is it is characterised in that the currently resident cell of described terminal unit
For global system for mobile communications gsm cell, described n adjacent area is WCDMA mobile communication system wcdma cell.
5. a kind of terminal unit is it is characterised in that include processor, memorizer and radio-frequency module, wherein, described memorizer is used for
Storage network switching program code, described processor is used for calling described network switching program code, and executes following operation:
N adjacent area in the measurement Neighboring Cell List that described processor is issued to network by described radio-frequency module is surveyed respectively
Amount, obtains n nearby region measurement value, and n is positive integer；
If described n nearby region measurement value is respectively less than or is equal to the first predetermined threshold value, described processor passes through described radio-frequency module pair
The corresponding m frequency in described n adjacent area scans for, and obtains all cells under described m frequency, m is less than or equal to n's
Positive integer.
6. terminal unit according to claim 5 is it is characterised in that described processor passes through described radio-frequency module to described
The corresponding m frequency in n adjacent area scans for, and before obtaining all cells under described m frequency, described processor is also used
In:
By described radio-frequency module, described m frequency is measured respectively, obtain the frequency measured value of each frequency；
By described radio-frequency module, to described n adjacent area, corresponding m frequency scans for described processor, obtains described m
All cells under frequency, comprising:
If described n nearby region measurement value is respectively less than or is equal to the frequency of the target frequency in the first predetermined threshold value and described m frequency
Point measured value is more than or equal to the second predetermined threshold value, then described processor is carried out to described target frequency by described radio-frequency module
Search, obtains all cells under described target frequency.
7. the terminal unit according to claim 5 or 6 is it is characterised in that described processor passes through described radio-frequency module pair
The corresponding m frequency in described n adjacent area scans for, and after obtaining all cells under described m frequency, described processor is also
For:
Described processor is measured by all cells that described radio-frequency module is directed under described m frequency, obtains o adjacent area
Measured value, o is the positive integer more than n；
Described processor selects to meet the Target cell of cell re-selection conditions according to described o nearby region measurement value；
Described processor by described radio-frequency module gravity treatment to described Target cell, if gravity treatment to described Target cell failure and institute
State other adjacent areas that Target cell is beyond the adjacent area in described measurement Neighboring Cell List, described processor controls described terminal unit
Refuse gravity treatment again to described Target cell in Preset Time.
8. the terminal unit according to any one of claim 5 to 7 is it is characterised in that described terminal unit is currently resident
Cell is global system for mobile communications gsm cell, and it is little that described n adjacent area is WCDMA mobile communication system wcdma
Area.
9. a kind of terminal unit is it is characterised in that include the first measurement module and search module, wherein,
Described first measurement module, the n adjacent area in Neighboring Cell List that measure for issuing to network measures respectively, obtains
N nearby region measurement value, n is positive integer；
Described search module, if the described n nearby region measurement value obtaining for described first measurement module is respectively less than or is equal to the
One predetermined threshold value, to described n adjacent area, corresponding m frequency scans for, and obtains all cells under described m frequency, and m is
Positive integer less than or equal to n.
10. terminal unit according to claim 9 is it is characterised in that also include:
Second measurement module, for measuring respectively to described m frequency, obtains the frequency measured value of each frequency；
Described search module specifically for:
If the described n nearby region measurement value that described first measurement module obtains is respectively less than or is equal to the first predetermined threshold value and described the
The frequency measured value of the target frequency in the described m frequency that two measurement modules obtain is more than or equal to the second predetermined threshold value, then
Described target frequency is scanned for, obtains all cells under described target frequency.
11. terminal units according to claim 9 or 10 are it is characterised in that also include:
3rd measurement module, for measuring for all cells under described m frequency, obtains o nearby region measurement value, o
It is the positive integer more than n；
Selecting module, the described o nearby region measurement value for being obtained according to described 3rd measurement module selects to meet cell reselection
The Target cell of condition；
Gravity treatment module, for control terminal equipment gravity treatment to described Target cell, if gravity treatment fails and institute to described Target cell
State other adjacent areas that Target cell is beyond the adjacent area in described measurement Neighboring Cell List, control terminal equipment is refused in Preset Time
Exhausted gravity treatment again is to described Target cell.
12. terminal units according to any one of claim 9 to 11 are it is characterised in that described terminal unit is currently resident
Cell be global system for mobile communications gsm cell, described n adjacent area is WCDMA mobile communication system wcdma
Cell.
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