CN105992290A - User equipment and network switching method thereof - Google Patents
User equipment and network switching method thereof Download PDFInfo
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- CN105992290A CN105992290A CN201610280129.1A CN201610280129A CN105992290A CN 105992290 A CN105992290 A CN 105992290A CN 201610280129 A CN201610280129 A CN 201610280129A CN 105992290 A CN105992290 A CN 105992290A
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- network
- signal intensity
- network formats
- subscriber equipment
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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
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- 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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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a user equipment network switching method. The method comprises the steps that when user equipment connects a wireless network, the signal intensity of the currently connected network system is judged; when the signal intensity of the currently connected network system is lower than a preset value, the signal intensity of a second network system is acquired; and a target cell is determined according to the signal intensity of the second network system and then cell switching is performed, and cell reselection is prohibited after cell switching. The advantages of the method are that the power loss of the user equipment under weak signals can be reduced, and the power loss and the call drop rate of the called can also be reduced by avoiding the ping-pong reselection effect of the user equipment so that the user experience can be enhanced.
Description
Technical field
The present invention relates to communication technical field, more particularly, it relates to a kind of subscriber equipment and network switching thereof
Method.
Background technology
In the 2G epoch, mobile phone only supports 2G, only one of which network schemer.Along with the arrival of 3G, 4G,
Smart mobile phone the most on the market supports 2G/3G/4G the most simultaneously.But different operators, network
Layout is different.Such as, if the 2G network coverage is fairly perfect, subscriber equipment (such as smart mobile phone)
2G network signal can be stronger；Correspondingly, if causing the 4G that mobile phone is corresponding when the 4G network coverage is undesirable
Network signal is more weak.This makes the mobile phone may be from the more weak 4G network reselection of current demand signal to 2G, so
After reselect to 4G from 2G again.The ping-pong reselection effect of gravity treatment, can cause the increasing of mobile telephone power consumption the most back and forth
Add, and reselect to 2G from 4G, need to re-register, need and base station carries out Signalling exchange, at this
During, if mobile phone has incoming call, then cannot receive, add called cutting off rate.On the other hand, mobile phone is worked as
Signal the most weak time, base station will be considered that mobile phone is apart from each other with base station, and signal disturbing is relatively big, logical in order to ensure
Letter quality, base station is that the resource of the weak handset allocation of signal is less.But for mobile phone, when base station is given
When the resource of handset allocation is less, mobile phone can increase through-put power, with in order to make base station can distribute more money
Source.Therefore, when mobile phone is under weak signal, power consumption can be increased.
In the prior art, especially when mobile phone connects network by WiFi, position, mobile phone region
The poor signal of the network formats registered now time, still can reselect to another network system that signal is higher
Formula, there is also ping-pong reselection effect simultaneously and the power consumption of mobile phone is increased.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that a kind of user
Device network changing method, the method includes:
When subscriber equipment connects wireless network, it is judged that the signal intensity of the current network formats connected；
When the signal intensity of the current network formats connected is less than preset value, obtain the signal of the second network formats
Intensity；
Signal intensity according to described second network formats carries out community switching after determining Target cell, and little
Re-selecting cell is forbidden after district's switching；
Wherein, described second network formats includes at least one network formats.
In one embodiment, the signal intensity of described acquisition the second network formats, particularly as follows:
Non-Access Stratum sends solicited message to physical layer；
After physical layer receives described solicited message, by calling radio frequency resource, adjacent cell is measured,
And measure the reporting district information obtained to Non-Access Stratum.
In one embodiment, described cell information includes: network formats, cell designation.
In one embodiment, the described signal intensity according to the second network formats determines Target cell, and
Re-selecting cell is forbidden after the switching of community, particularly as follows:
The community that signal intensity in second network formats is maximum is defined as Target cell, and determines described target
The network formats that community is corresponding；
Send network formats parameter to Non-Access Stratum and forbid cell reselection parameters.
In one embodiment, when described subscriber equipment disconnects wireless network, restart and search net.
On the other hand, also provide for a kind of subscriber equipment, support two or more network formats, described
Subscriber equipment includes:
Wireless communication module, is used for determining that described subscriber equipment has connected wireless network modulatedemodulate mode transfer the most
Block, when the signal intensity of the current network formats connected is less than preset value, obtains the second network formats
Signal intensity；
Described modulation /demodulation module, is additionally operable to the signal intensity according to described second network formats and determines that target is little
Re-selecting cell is forbidden after carrying out community switching, and community switching behind district；
Wherein, described second network formats includes at least one network formats.
In one embodiment, described subscriber equipment also includes:
Non-Access Stratum, sends solicited message to physical layer during for obtaining the signal intensity of the second network formats；
Physical layer, after being used for receiving described solicited message, by calling radio frequency resource, is carried out adjacent cell
Measure, and measure the reporting district information obtained to Non-Access Stratum.
In one embodiment, described cell information includes: network formats, cell designation.
In one embodiment, described physical layer is additionally operable to:
When described subscriber equipment disconnects wireless network, restart and search net.
In one embodiment, described modulation /demodulation module, it is additionally operable to, by strong for signal in the second network formats
The community of degree maximum is defined as Target cell, and determines the network formats that described Target cell is corresponding.
The subscriber equipment of the embodiment of the present invention and method for switching network thereof, by judging whether subscriber equipment connects
Upper WiFi network, obtains, by radio-frequency measurement information of adjacent cells, the network formats that signal is the strongest the most again, makes
User equipment registration is on this network formats, and by forbidding cell reselection process, it is to avoid mobile phone is rattled
Gravity treatment.After mobile phone disconnects WiFi network, then lift restrictions, make mobile phone normally search net, gravity treatment
Journey, does not affect the normal use of user.Implement a kind of user equipment network changing method of the present invention, have
Following beneficial effect: reduce mobile phone power attenuation under weak signal, and by avoiding the table tennis of mobile phone
Gravity treatment effect, reduces power attenuation and called cutting off rate simultaneously, improves the intelligent level of terminal,
Improve Consumer's Experience.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is a kind of subscriber equipment LTE communication protocol stack structure figure；
Fig. 2 is the wireless communication system schematic diagram of subscriber equipment；
Fig. 3 is a kind of user equipment network changing method flow chart that the embodiment of the present invention provides；
Fig. 4 is the another kind of user equipment network changing method flow chart that the embodiment of the present invention provides；
Fig. 5 is a kind of user device architecture schematic diagram that the embodiment of the present invention provides；
Fig. 6 is the another kind of user device architecture schematic diagram that the embodiment of the present invention provides；
Fig. 7 is the method for switching network flow chart of a kind of subscriber equipment based on Fig. 6.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
The present invention.
The subscriber equipment realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description
In, use the suffix of such as " module ", " parts " or " unit " for representing element only for being conducive to this
The explanation of invention, itself does not has specific meaning.Therefore, " module " can mixedly make with " parts "
With.
Subscriber equipment can be implemented in a variety of manners.Such as, the subscriber equipment described in the present invention can wrap
Include such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (individual digital
Assistant), PAD (panel computer), PMP (portable media player), the user of guider etc.
The fixed terminal of equipment and such as numeral TV, desk computer etc..Hereinafter it is assumed that subscriber equipment is
Mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for the element of mobile purpose
Outside, structure according to the embodiment of the present invention can also apply to the terminal of fixed type.
Should be understood that two or more network formats supported by the subscriber equipment of the embodiment of the present invention, as
The network formats such as LTE, CDMA, CDMA-2000, TD-SCDMA, WCDMA, GSM.
See Fig. 1, for a kind of subscriber equipment LTE communication protocol stack structure figure.Including:
Physical layer (1 layer)
Physical layer carries out all of information from MAC transmission channel by air interface.Need the link of nursing
Self adaptation (AMC), power controls, cell searching (for initial synchronisation and the purpose of handover), nothing
Other measured values of line Resource Control Layer are (in LTE system, between the systems).
Media access layer (MAC)
MAC layer is responsible for the mapping between logic channel and transmission channel, the MAC SDU of multiplexing from
One or different logic channels are passed to the transmission channel of physical layer to transmission block (TB), multiplexing
The transmission block (TB) transmitted from one or different logic channels of MAC SDU, the biography from physical layer
Defeated channel, the report of schedule information, by the error correction of HARQ, by dynamic dispatching, a UE
Priority of logical channels logic channel between priority processing UE between priority processing.
Wireless spread-spectrum technology (RLC)
3 kinds of mode of operations of RLC operation: transparent mode (TM), Unacknowledged Mode (UM), confirm mould
Formula (AM).
Rlc layer is responsible for shifting the PDU on upper strata, (is only applicable to AM data pass by ARQ error correction
Defeated), series connection, the RLC SDU split and recombinate (is only applicable to the transmission of UM and AM data).
RLC is also responsible for again splitting RLC data PDU (being only applicable to the transmission of UM and AM data),
Duplicate detection (is only applicable to the transmission of UM and AM data), and RLC SDU (only abandons RLC data PDU
It is applicable to the transmission of AM data), rearrangement (is only applicable to the transmission of UM and AM data), RLC weight
Build and protocol error detection (being only applicable to the transmission of AM data).
Wireless heterogeneous networks (RRC)
The main services of wireless heterogeneous networks sublayer includes relevant non-access of system information of broadcast with function
The broadcast system information of layer (NAS), paging, RRC establishment of connection, connecing between safeguarding and discharging
Enter relevant UE and E-UTRAN of layer (AS), security function, including key management, set up, configuration,
Safeguard and releasing wireless loading is point-to-point.
Packet data convergence controls (PDCP)
PDCP layer is responsible for the compression of IP datagram head and decompression, data (user plane or the control of transmission
Plane processed), safeguard PDCP serial number (SNS), sequence re-establishes the payment of the upper strata PDU of lower floor,
The SDU of repeated elimination lower floor, maps re-establishing lower floor's RLC AM radio bearer, encrypts and decipher
User plane data plane and control panel data, control the integrity protection of panel data and integrity tested
Card, based on intervalometer abandons, and abandons repetition, and SRB and DCCH that PDCP uses and DTCH is not
With mapping logical channels to multiple DRB.
Non-Access Stratum (NAS) agreement
Between top-level subscriber equipment (UE) and MME that Non-Access Stratum (NAS) agreement is formed
Control plane.
NAS agreement supports mobility and the session management program of UE, sets up and keeps UE and PDN GW
Between IP connect.
The network architecture of the mobile communication system seeing the subscriber equipment place that Fig. 2 is the embodiment of the present invention is shown
It is intended to.Its network architecture includes: above-mentioned subscriber equipment 100, E-UTRAN (Evolved UMTS
Terrestrial Radio Access Network, the UMTS Terrestrial radio access network of evolution) (figure is not marked
Number), evolution block core (EPC) (non-label in figure), home subscriber servers (HSS) 107, net
Network (such as, the Internet) (non-label in figure) and circuit switching system (non-label in figure).E-UTRAN
Including evolution B node (eNodeB) 101 and other eNodeB 102.
ENodeB 101 is connected to EPC by S1 interface.EPC includes mobile management entity (EEM)
104, other mobile management entities 106, gateway 103, and packet data network (PDN) gateway
105.Mobile management entity 104 is the control node processing the signaling between subscriber equipment 100 and EPC.
Mobile management entity 104 provides carrying and connection management.All User IPs are grouped by gateway 103
Transmitting, gateway 103 is itself coupled to PDN Gateway 105.PDN Gateway 105 provides UE IP
Address distribution and other functions.PDN Gateway 105 is connected to network, such as, and the Internet.
Circuit switching system includes interaction solution module (IWS) 108, mobile switching centre (MSC)
109, base station 110 and movement station 111.In one aspect, circuit switching system can by IWS and
MME with EPS communicates.
Based on the subscriber equipment LTE communication protocol stack structure shown in above-mentioned Fig. 1, the network of the present invention is proposed
Each embodiment of changing method.
Embodiment 1
As it is shown on figure 3, a kind of user equipment network changing method flow chart provided for the embodiment of the present invention,
Including step:
S101, when subscriber equipment connects wireless network, it is judged that the signal of the current network formats connected
Intensity.
Should be understood that two or more network formats supported by the subscriber equipment of the embodiment of the present invention, as
The network formats such as LTE, CDMA, CDMA-2000, TD-SCDMA, WCDMA, GSM.With
Family equipment can pass through mobile network (e.g., 2G/3G/4G) or wireless network (WLAN) accesses interconnection
Net.
In one embodiment, the WLAN module of subscriber equipment adds a flag bit, and this flag bit is used
In judging that whether subscriber equipment is by connecting WLAN access the Internet.As, modulation /demodulation module (Modem)
Receiving the flag bit that WLAN module sends, e.g., the value of this flag bit is 1, then it represents that active user sets
For connecting WLAN, now, modulation /demodulation module actively judges the network system that subscriber equipment is presently in
The signal intensity of formula.
S102, when the signal intensity of the current network formats connected is less than preset value, obtains the second network system
The signal intensity of formula.
In one embodiment, the signal intensity of the network formats that subscriber equipment currently connects includes but not limited to
Two ways once, mode one: judge according to the signal lattice number shown by subscriber equipment upper interface, as
Signal lattice number system is less than two lattice；Mode two: judge according to the incoming level of subscriber equipment, such as incoming level
Less than-90dBm.When meeting above-mentioned preset value condition, subscriber equipment modulation /demodulation module obtains the second net
The signal intensity of network standard.
In one embodiment, obtaining the signal strength information of other network formats, Non-Access Stratum is by carrying
Signaling (Call Manger, CM) sends a solicited message to physical layer, and physical layer receives this request
After information, by calling radio frequency resource (RF), adjacent cell is measured, and the community that measurement is obtained
Information reporting is to Non-Access Stratum.Cell information mainly comprises: network formats (RAT), and signal intensity is little
District indicates (cell_id) etc..
It will be understood by those skilled in the art that described second network formats includes at least one network formats,
Accessed such as current user equipment is GSM (2G) network, then the second network formats include LTE,
CDMA, CDMA-2000, TD-SCDMA, WCDMA etc..
S103, carries out community switching after determining Target cell according to the signal intensity of described second network formats,
And forbid re-selecting cell after the switching of community.
In one embodiment, the community that signal intensity in the second network formats is maximum is defined as target little
District, and determine the network formats (RAT) that described Target cell is corresponding；To Non-Access Stratum (NAS module)
Send network formats parameter and forbid cell reselection parameters.Wherein, forbid that cell reselection parameters is also used for accusing
Know that what NAS module only carried out this RAT searches net, forbid cell reselection process, to prevent mobile phone from carrying out gravity treatment
Process, increases power consumption and called cutting off rate.After NAS module receives this information, start and search net flow process.NAS
Preparation is searched the relevant information (PLMN, RAT, BAND) of net and forbids that cell reselection parameters sends RRC to
Module, after RRC module receives parameter information, notice physical layer proceeds by searches net, registration.
A kind of user equipment network changing method provided based on the embodiment of the present invention, reduces subscriber equipment weak
Power attenuation under signal.As, subscriber equipment is mobile phone, and mobile phone is being currently used 4G network, but
4G network signal is the most weak, and only one lattice signal, now mobile phone has connected again WiFi network.Use the program,
Mobile phone can find the community that signal is best, if, now 2G signal is highly stable, owing to mobile phone connects
WiFi, is not required to surf the Net with 4G again, can automatically search for 2G network, re-register 2G network, and
Now mobile phone only can be registered on 2G network, does not carry out cell reselection process, it is therefore prevented that 2G's to 4G
Ping-pong reselection, reduces power consumption and called cutting off rate.
Embodiment 2
As shown in Figure 4, a kind of user equipment network changing method flow chart provided for the embodiment of the present invention,
Including step:
S301, it is judged that current user equipment has connected wireless network the most.
In one embodiment, the WLAN module of subscriber equipment adds a flag bit, and this flag bit is used
In judging that whether subscriber equipment is by connecting WLAN access the Internet.As, modulation /demodulation module (Modem)
Receiving the flag bit that WLAN module sends, e.g., the value of this flag bit is 1, then it represents that active user sets
For connecting WLAN, now, modulation /demodulation module actively judges the network system that subscriber equipment is presently in
The signal intensity of formula.
S302, it is judged that whether the signal intensity of the current network formats connected is less than preset value.
In one embodiment, the signal intensity of the network formats that subscriber equipment currently connects includes but not limited to
Two ways once, mode one: judge according to the signal lattice number shown by subscriber equipment upper interface, as
Signal lattice number system is less than two lattice；Mode two: judge according to the incoming level of subscriber equipment, such as incoming level
Less than-90dBm.When meeting above-mentioned preset value condition, subscriber equipment modulation /demodulation module obtains the second net
The signal intensity of network standard.
In one embodiment, obtaining the signal strength information of other network formats, Non-Access Stratum is by carrying
Signaling (Call Manger, CM) sends a solicited message to physical layer, and physical layer receives this request
After information, by calling radio frequency resource (RF), adjacent cell is measured, and the community that measurement is obtained
Information reporting is to Non-Access Stratum.Cell information mainly comprises: network formats (RAT), and signal intensity is little
District indicates (cell_id) etc..
It will be understood by those skilled in the art that described second network formats includes at least one network formats,
Accessed such as current user equipment is GSM (2G) network, then the second network formats include LTE,
CDMA, CDMA-2000, TD-SCDMA, WCDMA etc..
S303, obtains the signal intensity of the second network formats.
S304, by calling radio frequency resource, measures adjacent cell, and community letter measurement obtained
Breath reports.
In one embodiment, as it is shown in figure 1, the Non-Access Stratum (NAS) in the first protocol stack is by taking
Band signaling (Call Manger, CM) sends a solicited message to physical layer, and physical layer receives this please
After seeking information, by calling radio-frequency module, adjacent cell is measured, and the cell information that measurement is obtained
Report Non-Access Stratum.Cell information mainly comprises: network formats (RAT), signal intensity, and community is marked
Show (cell_id) etc..
S305, carries out community switching after determining Target cell according to the signal intensity of the second network formats, and
And forbid re-selecting cell after the switching of community.
In one embodiment, the community that signal intensity in network formats is maximum is defined as Target cell, and
Determine the network formats (RAT) that described Target cell is corresponding；The Non-Access Stratum (NAS module) of protocol stack
Send network formats parameter and forbid cell reselection parameters.Wherein, forbid that cell reselection parameters is also used for accusing
Know that what NAS module only carried out this RAT searches net, forbid cell reselection process, to prevent mobile phone from carrying out gravity treatment
Process, increases power consumption and called cutting off rate.After NAS module receives this information, start and search net flow process.NAS
Preparation is searched the relevant information (PLMN, RAT, BAND) of net and forbids that cell reselection parameters sends RRC to
Module, after RRC module receives parameter information, notice physical layer proceeds by searches net, registration.
S306, re-searches for network.
In one embodiment, when again searching net, subscriber equipment can reading and saving is good from NV item PLMN
List, then starting to scan frequency corresponding to these PLMN, if scanning successfully, starting registered network,
If scanning unsuccessfully, the frequency of supports all to terminal is scanned.If scanning still failure will enter
OoS (out of servie) state, at this time can start COOS (Classic Out of Service) strategy, it may be assumed that
1. dormancy, woke up modem up and has preserved frequency+full frequency band search (spending the several seconds) every 30 seconds,
Such 10 times；
2. dormancy, woke up modem up and has preserved frequency+full frequency band search (spending the several seconds) every 45 seconds,
Such 10 times；
3. dormancy, woke up modem up and carries out every 60 seconds: preserved frequency+do not include having preserved frequency range
Full frequency band was searched for, and so can the most preserve frequency+full frequency band search every 15 minutes；The most always
Continue.
Unlike a kind of user equipment network changing method provided from foregoing invention embodiment, the present invention is real
Executing the method provided in example after subscriber equipment disconnection of wireless network (WiFi), subscriber equipment then can be searched again
Net, carries out searching net according to the net order of searching that modulation /demodulation module is preset, as started to search net from 4G, the most disconnected
After opening WiFi network, mobile phone has been returned on 4G, does not interferes with the use of normally surfing the Net of user.
Embodiment 3
As it is shown in figure 5, a kind of user device architecture schematic diagram provided by the embodiment of the present invention, including:
Wireless communication module 101, is used for determining that described subscriber equipment has connected wireless network the most.
Modulation /demodulation module 102, when the signal intensity of the current network formats connected is less than preset value,
Obtain the signal intensity of the second network formats；
Described modulation /demodulation module 102, is additionally operable to the signal intensity according to described second network formats and determines mesh
Re-selecting cell is forbidden after carrying out community switching, and community switching behind mark community.
In one embodiment, in one embodiment, the wireless communication module 101 of subscriber equipment adds one
Individual flag bit, this flag bit is used for judging that whether subscriber equipment is by connecting WLAN access the Internet.As,
Modulation /demodulation module 102 receives the flag bit that wireless communication module 101 sends, and e.g., the value of this flag bit is
1, then it represents that current user equipment has connected WLAN, and now, modulation /demodulation module actively judges that user sets
The signal intensity of the standby network formats being presently in.
In one embodiment, the signal intensity of the network formats that subscriber equipment currently connects includes but not limited to
Two ways once, mode one: judge according to the signal lattice number shown by subscriber equipment upper interface, as
Signal lattice number system is less than two lattice；Mode two: judge according to the incoming level of subscriber equipment, such as incoming level
Less than-90dBm.When meeting above-mentioned preset value condition, subscriber equipment modulation /demodulation module obtains the second net
The signal intensity of network standard.
In one embodiment, obtain the signal strength information of other network formats, pass through call management layer
(Call Manger, CM) sends a solicited message to physical layer, and physical layer receives this solicited message
After, by calling radio frequency resource (RF), adjacent cell is measured, and the cell information that measurement is obtained
Report call management layer.Cell information mainly comprises: network formats (RAT), signal intensity, community
Indicate (cell_id) etc..
It will be understood by those skilled in the art that described second network formats includes at least one network formats,
Accessed such as current user equipment is GSM (2G) network, then the second network formats include LTE,
CDMA, CDMA-2000, TD-SCDMA, WCDMA etc..
In one embodiment, the community that signal intensity in the second network formats is maximum is defined as target little
District, and determine the network formats (RAT) that described Target cell is corresponding；To Non-Access Stratum (NAS module)
Send network formats parameter and forbid cell reselection parameters.Wherein, forbid that cell reselection parameters is also used for accusing
Know that what NAS module only carried out this RAT searches net, forbid cell reselection process, to prevent mobile phone from carrying out gravity treatment
Process, increases power consumption and called cutting off rate.After NAS module receives this information, start and search net flow process.NAS
Preparation is searched the relevant information (PLMN, RAT, BAND) of net and forbids that cell reselection parameters sends RRC to
Module, after RRC module receives parameter information, notice physical layer proceeds by searches net, registration.
Embodiment 4
In conjunction with Fig. 6 and Fig. 7, a kind of method for switching network that the embodiment of the present invention provides is proposed, it is possible to understand that
, the subscriber equipment of the embodiment of the present invention is the terminal unit that can install phonecard, in following example,
It is described in detail as a example by mobile phone.
See the structural representation of the subscriber equipment that Fig. 6 is the embodiment of the present invention.The use of one embodiment of the invention
Family equipment includes: first processes chip 200, second processes chip the 300, first radio frequency 205, WLAN
Module the 207, second radio frequency 305, first user identification card the 206, second Subscriber Identity Module 306, encoding and decoding
Device the 204, first logic switch the 401, second logic switch 402, photographic head 600, mike 500.Its
In, first processes chip 200 includes application program processing module 202, digital signal processing chip 203 and
First protocol stack 201.Second processes chip includes second protocol stack 301.
Should be understood that digital signal processing chip 203 also can be real by the chip processing chip 200 independent of first
Existing.
First process chip 200 and the second process chip 300 between by serial ports (USB) and GPIO/SDIO
Mouth connects, and to realize two definition processing control signal between chips and transmission, such as, carries out at two
The dormancy of reason chip, wake up up, the control that synchronizes, switching on and shutting down time chip boot sequence control etc..
By serial ports (USB), application program processing module 202 and second protocol stack 301 are controlled letter
Number and the transmission of data.
Two protocol stacks (the first protocol stack 201 and second protocol stack 301) in present invention enforcement are by answering
It is driven configuration by routine processes module 202 and controls.
Subscriber Identity Module (first user identification card 206 and the second Subscriber Identity Module 306) is for setting with user
Standby be attached and information exchange, it is provided that mobile communication business (CS speech business, PS data service and
PS speech business) needed for related data, and store user profile, short message therein, perform mirror
Power algorithm and generation cryptographic keys etc..
When Subscriber Identity Module is mutual with subscriber equipment, the signal of detection Subscriber Identity Module presence or absence is only in start
Instantaneous generation, in the presence of start can't detect Subscriber Identity Module, will be prompted to " insertion Subscriber Identity Module ".With
After the device power-up of family, between subscriber equipment and Subscriber Identity Module, communication in 28 seconds once, completes some and fixes
Communication check (such as, Subscriber Identity Module the most in place etc.).
First user identification card 206 and the second Subscriber Identity Module 306 can manage and similar and different technical bid
The different user that standard is associated.In specific limiting examples, technical bid will definitely be 2G communication technology (example
As, GSM, GPRS, EDGE), 3G communication technology (such as, WCDMA, TDS-CDMA),
4G communication technology (such as, LTE, TD-LTE), or other mobile communication technology any (such as, 4G,
4.5G etc.).
Wireless access technology involved by first radio frequency 205 and the second radio frequency 305 can include LTE, GSM,
GPRS、CDMA、EDGE、WLAN、CDMA-2000、TD-SCDMA、WCDMA、WIFI
Etc..
The inner frame of application program processing module 202 includes application layer, ccf layer etc., can process complexity
Logical operation and carry out task distribution etc..In one embodiment, application program processing module 202 refers to
Android operation system, and various apk based on Android operation system.
In an embodiment of the present invention, application program processing module 202 provides the user interactive interface, will use
Family input operational order (such as, user by user interface input relevant startup connection mobile network such as,
The operational order of 2G/3G/4G) it is transferred to the first protocol stack 201 or second protocol stack 301.
WLAN module 207 supports the Wi-Fi (Wireless Internet Access) of subscriber equipment.This module can be internal or outward
It is couple to terminal unit to portion.Wi-Fi (Wireless Internet Access) technology involved by this module can include
WLAN (WLAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave access),
HSDPA (high-speed downlink packet access) etc..
First protocol stack 201 and second protocol stack 301 include the agreement of the various network formats with network interaction
Stack, such as, advises in the communication standard such as LTE/WCDMA/GSM/TDSCDMA/1X/CDMA/EVDO
The protocol code reserved.The agreement of these standards is that (such as, subscriber equipment interacts with carrier network
Surfed the Net by data traffic, make a phone call by VOLTE video calling or by CS circuit domain) institute
Must be complied with.
Photographic head 600 includes suitable hardware, logical device, circuit and/or coding, is used for gathering image
Signal.
Mike 500 includes suitable hardware, logical device, circuit and/or coding, is used for gathering voice
Signal or output acoustical signal.Additionally, the subscriber equipment of the embodiment of the present invention also includes display screen (Fig. 1
Not shown in), it is used for showing image information.
Codec (Codec) 204 includes suitable hardware, logical device, circuit and/or coding,
For carrying out A/D and D/A conversion.
Digital signal processing chip 203 includes suitable hardware, logical device, circuit and/or coding, uses
In carrying out Audio Signal Processing, such as, the audio signal such as the echo suppression in communication process, noise suppressed
Process, and be used for carrying out picture signal process.
First radio frequency 205 is used for transmitting signals to base station network (eNodeB) and receive base station network send out
The signal sent.
Second radio frequency 305 is used for transmitting signals to base station network (eNodeB) and receive base station network send out
The signal sent.First logic switch 401 processes chip 200 and first user identification card 206 with first respectively
Connect, under the control processing the first control instruction of chip 200 output first, make first user know
Ka 206 not be connected with the first protocol stack 201 or second protocol stack 301.
Second logic switch 402 processes chip 200 with first respectively and the second Subscriber Identity Module 306 is connected,
Under the control processing the second control instruction of chip 200 output first, make the second Subscriber Identity Module
306 are connected with the first protocol stack 201 or second protocol stack 301.
In one embodiment, the first process chip 200 realizes opening the first logic by output low and high level
Pass 401 and the control of the second logic switch 402.Such as, when exporting high level, the first logic switch
401 conductings, make first user identification card 206 be connected with the first protocol stack 201；And during output low level,
First user identification card 206 is connected with second protocol stack 301.Maybe when exporting high level, the second logic is opened
Close 401 conductings, make the second Subscriber Identity Module 306 be connected with the first protocol stack 201；And during output low level,
Second Subscriber Identity Module 306 is connected with second protocol stack 301.
In one embodiment of this invention, if first user identification card 206 is connected with the first protocol stack 201,
Then first user identification card 206 can reside in the PS of the first mobile communications network by the first protocol stack 201
(Packet Switching, packet switch) territory and CS (Circuit Switching, circuit switching) territory.
Thus, first user identification card 206 can carry out CS voice and PS data by the first mobile communications network
Business.
Same, if the second Subscriber Identity Module 306 is connected with the first protocol stack 201, then the second user identifies
Card 306 can reside in PS territory and the CS territory of the first mobile communications network by the first protocol stack 201.By
This, the second Subscriber Identity Module 306 can carry out CS voice and PS data industry by the first mobile communications network
Business.
It is connected if first user identification card 206 is set up with second protocol stack 301, then first user identification card
The 206 PS territories that can be resided in the second mobile communications network by second protocol stack 301.Thus, first use
Family identification card 206 can carry out PS data service by the second mobile communications network.
Same, it is connected if the second Subscriber Identity Module 306 is set up with second protocol stack 301, then the second user
Identification card 306 can reside in the PS territory of the second mobile communications network by second protocol stack 301.Thus,
Second Subscriber Identity Module 306 can carry out PS data service by the second mobile communications network.
First mobile communications network and the second mobile communications network can be the heterogeneous networks of different operators, also
The similar and different network of same operator.
Structure based on above-mentioned subscriber equipment, provides the method for switching network of a kind of double card user equipment, its stream
Journey figure sees Fig. 7, including step:
S401, it is judged that current user equipment has connected wireless network the most.
S402, it is judged that whether the signal intensity of the current network formats connected is less than preset value.
S403, obtain respectively first user identification card and the second Subscriber Identity Module signal intensity.
In one embodiment, the first mobile communications network and second connected due to Subscriber Identity Module moves logical
Communication network can be the heterogeneous networks of different operators, it is possible to be the similar and different network of same operator.
Such as, subscriber equipment first user identification card is China Mobile, and the second Subscriber Identity Module is CHINAUNICOM, when
China Mobile's 4G network signal that front subscriber equipment connects is more weak, then it represents that this user equipment allocation is given in base station
Resource less time, equipment can increase through-put power, with in order to make base station can distribute more resource, therefore,
When subscriber equipment is under weak signal, power consumption can be increased.If now, user possesses two Subscriber Identity Modules,
The Subscriber Identity Module that then can start another idle state measures cell information.
S404, it is judged that the signal intensity of first user identification card is more than the signal intensity of the second Subscriber Identity Module.
Specifically, whether this step is for really calling the first radio frequency or the second radio frequency to obtain community letter
Breath.Judge Subscriber Identity Module signal intensity standard can based on the signal intensity of consolidated network standard, as than
The 3G signal of relatively first user identification card and the second Subscriber Identity Module；Can also to first user identification card and
The signal intensity of the all-network standard that the second Subscriber Identity Module is supported, e.g., above-mentioned two Subscriber Identity Module
Support network formats 2G, 3G, 4G respectively, then compare the signal intensity of these network formats, finally determine
Whether the signal intensity of first user identification card is more than the signal intensity of the second Subscriber Identity Module.
S405, adjacent cell is measured by the first radio frequency, and the reporting district information that will measure.
In one embodiment, if the signal intensity of first user identification card is more than the second Subscriber Identity Module
Signal intensity, then first process chip 200 and control the first logic switch 401 and be connected with the first protocol stack 201,
Non-Access Stratum (NAS) in first protocol stack 201 by carry signaling (Call Manger, CM) to
Physical layer sends a solicited message, after physical layer receives this solicited message, by calling the first radio frequency
205, adjacent cell is measured, and reporting district information measurement obtained is to Non-Access Stratum.Community is believed
Breath mainly comprises: network formats (RAT), signal intensity, cell designation (cell_id) etc..
S406, adjacent cell is measured by the second radio frequency, and the reporting district information that will measure.
In one embodiment, if the signal intensity of first user identification card is less than the second Subscriber Identity Module
Signal intensity, then first process chip 200 and control the second logic switch 402 and be connected with second protocol stack 202,
Non-Access Stratum (NAS) in second protocol stack 202 by carry signaling (Call Manger, CM) to
Physical layer sends a solicited message, after physical layer receives this solicited message, by calling the second radio frequency
206, adjacent cell is measured, and reporting district information measurement obtained is to Non-Access Stratum.Community is believed
Breath mainly comprises: network formats (RAT), signal intensity, cell designation (cell_id) etc..
S407, forbids community again after carrying out community switching, and community switching.
In one embodiment, the community that signal intensity in network formats is maximum is defined as Target cell, and
Determine the network formats (RAT) that described Target cell is corresponding；As described above, if first user identification
A network formats signal intensity corresponding to card is maximum, then to the Non-Access Stratum (NAS of the first protocol stack
Module) send network formats parameter and forbid cell reselection parameters.Wherein, forbid that cell reselection parameters is also
For informing that what NAS module only carried out this RAT searches net, forbid cell reselection process, to prevent mobile phone from entering
Row reuse adoption process, increases power consumption and called cutting off rate.After NAS module receives this information, start and search net stream
Journey.Preparation is searched the relevant information (PLMN, RAT, BAND) of net and forbids cell reselection parameters by NAS
Send RRC module to, after RRC module receives parameter information, notice physical layer proceed by search net,
Registration.
S407, re-searches for network.
Specifically, when subscriber equipment disconnects with wireless network, the network of WLAN module connects mark
Will position is labeled as 0, and is sent to modulation /demodulation module.Modulation /demodulation module then re-starts and searches net.And this
Time net flow process of searching be then to carry out according to the net flow process of normally searching of equipment, the network formats of search is then by modulating
The RAT that demodulation module prestores searches net order and determines.
A kind of user equipment network changing method provided based on the embodiment of the present invention, when subscriber equipment is supported double
Card or when blocking more, can select signal in Subscriber Identity Module the strongest switch target as network, and even
When meeting wireless network (such as WiFi), after handover network, forbid ping-pong reselection, when subscriber equipment disconnects
During wireless network, then lift restrictions, actively start search network, re-selecting cell, thus reduce subscriber equipment
Power consumption and called cutting off rate.
Professional is it should also be realised that combine the unit of each example that the embodiments described herein describes
And algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clear
The interchangeability of ground explanation hardware and software, the most generally describes respectively according to function
The composition of example and step.These functions perform with hardware or software mode actually, depend on technical side
The application-specific of case and design constraint.Each specifically should being used for can be used not by professional and technical personnel
Realize described function with method, but this realization is it is not considered that beyond the scope of this invention.
The method described in conjunction with the embodiments described herein or the step of method can use hardware, processor
The software module performed, or the combination of the two implements.Software module can be placed in random access memory
(RAM), internal memory, read only memory (ROM), electrically programmable ROM, electrically erasable ROM,
In depositor, hard disk, moveable magnetic disc, CD-ROM or any other form of storage medium.
For illustrative purposes, description above employs specific term, to provide thorough to the present invention
Understand.It will be apparent, however, to one skilled in the art, that in order to put into practice the present invention and be not required to
Want concrete details.The specific embodiment of the present invention described above be for purposes of illustration and description and in
Existing.They are not intended to detailed or limit the invention to disclosed precise forms.In view of religious doctrine above,
Many modifications and variations are possible.Principle and reality thereof in order to explain the present invention best are applied and are illustrated
And describe these embodiments so that others skilled in the art can utilize best the present invention and
There are the various embodiments of the various amendments being suitable to intended specific use.It is intended to the scope of the present invention by subsequently
Claim and its equivalent limit.
Claims (10)
1. a user equipment network changing method, two or more net supported by described subscriber equipment
Network standard, it is characterised in that described method includes:
When subscriber equipment connects wireless network, it is judged that the signal intensity of the current network formats connected；
When the signal intensity of the current network formats connected is less than preset value, obtain the signal of the second network formats
Intensity；
Signal intensity according to described second network formats carries out community switching after determining Target cell, and little
Re-selecting cell is forbidden after district's switching.
User equipment network changing method the most according to claim 1, it is characterised in that described in obtain
Take the signal intensity of the second network formats, particularly as follows:
Non-Access Stratum sends solicited message to physical layer；
After physical layer receives described solicited message, by calling radio frequency resource, adjacent cell is measured,
And measure the reporting district information obtained to Non-Access Stratum.
User equipment network changing method the most according to claim 2, it is characterised in that described little
District's information includes: network formats, cell designation.
User equipment network changing method the most according to claim 1, it is characterised in that described
Re-selecting cell is forbidden, tool after determining Target cell, and community switching according to the signal intensity of the second network formats
Body is:
The community that signal intensity in second network formats is maximum is defined as Target cell, and determines described target
The network formats that community is corresponding；
Send network formats parameter to Non-Access Stratum and forbid cell reselection parameters.
User equipment network changing method the most according to claim 1, it is characterised in that when described
When subscriber equipment disconnects wireless network, restart and search net.
6. a subscriber equipment, supports two or more network formats, it is characterised in that described
Subscriber equipment includes:
Wireless communication module, is used for determining that described subscriber equipment has connected wireless network modulatedemodulate mode transfer the most
Block, when the signal intensity of the current network formats connected is less than preset value, obtains the second network formats
Signal intensity；
Described modulation /demodulation module, is additionally operable to the signal intensity according to described second network formats and determines that target is little
Re-selecting cell is forbidden after carrying out community switching, and community switching behind district.
Subscriber equipment the most according to claim 6, it is characterised in that described subscriber equipment also includes:
Non-Access Stratum, sends solicited message to physical layer during for obtaining the signal intensity of the second network formats；
Physical layer, after being used for receiving described solicited message, by calling radio frequency resource, is carried out adjacent cell
Measure, and measure the reporting district information obtained to Non-Access Stratum.
Subscriber equipment the most according to claim 6, it is characterised in that described cell information includes:
Network formats, cell designation.
Subscriber equipment the most according to claim 7, it is characterised in that described physical layer is additionally operable to:
When described subscriber equipment disconnects wireless network, restart and search net.
Subscriber equipment the most according to claim 6, it is characterised in that described modulation /demodulation module,
It is additionally operable to, the community that signal intensity in the second network formats is maximum is defined as Target cell, and determines described
The network formats that Target cell is corresponding.
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