CN105992290B - A kind of user equipment and its method for switching network - Google Patents
A kind of user equipment and its method for switching network Download PDFInfo
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- CN105992290B CN105992290B CN201610280129.1A CN201610280129A CN105992290B CN 105992290 B CN105992290 B CN 105992290B CN 201610280129 A CN201610280129 A CN 201610280129A CN 105992290 B CN105992290 B CN 105992290B
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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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Abstract
The invention discloses a kind of user equipment network switching method, the method includes the steps: when user equipment has connected wireless network, judge the signal strength of the network formats currently connected；When the signal strength of the network formats currently connected is lower than preset value, the signal strength of the second network formats is obtained；Cell switching is carried out after determining Target cell according to the signal strength of second network formats, and forbids re-selecting cell after cell switching.The advantages of party is sent out is, reduces power loss of the user equipment under weak signal, and the ping-pong reselection effect by avoiding user equipment, while reducing power loss and called cutting off rate, the user experience is improved.
Description
Technical field
The present invention relates to fields of communication technology, more specifically to a kind of user equipment and its method for switching network.
Background technique
In the 2G era, mobile phone only supports 2G, only one network mode.With the arrival of 3G, 4G, intelligence on the market at present
Energy mobile phone all supports 2G/3G/4G simultaneously substantially.But it is different operator, network topology is different.For example, if 2G
The 2G network signal of the fairly perfect then user equipment (such as smart phone) of the network coverage can be relatively strong；Correspondingly, if the 4G network coverage
Cause the corresponding 4G network signal of mobile phone weaker when undesirable.This makes the 4G network weight that mobile phone may be weaker from current demand signal
Then choosing reselects to 4G from 2G again to 2G.The ping-pong reselection effect of gravity treatment back and forth in this way, will lead to the increase of mobile telephone power consumption, and
And 2G is reselected to from 4G, it needs to re-register, needs to carry out Signalling exchange with base station, in the process, if mobile phone has incoming call,
It can not be connected to, increase called cutting off rate.On the other hand, when the signal of mobile phone is very weak, base station will be considered that mobile phone and base station phase
Away from farther out, signal interference is larger, and in order to ensure communication quality, base station is that the resource of the weak handset allocation of signal is less.But it is right
For mobile phone, when base station is less to the resource of handset allocation, mobile phone will increase transimission power, in order to enable base station to distribute
More resources.Therefore, when mobile phone is under weak signal, it will increase power consumption.
In the prior art, especially when mobile phone is by WiFi connection network, mobile phone region position now just
In the poor signal of the network formats of registration, the stronger another network formats of signal can be still reselected to, while there is also table tennises
Gravity treatment effect increases the power consumption of mobile phone.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of user equipment net
Network switching method, this method comprises:
When user equipment has connected wireless network, the signal strength of the network formats currently connected is judged；
When the signal strength of the network formats currently connected is lower than preset value, the signal strength of the second network formats is obtained；
Cell switching is carried out after determining Target cell according to the signal strength of second network formats, and cell switches
After forbid re-selecting cell；
Wherein, second network formats include at least one network formats.
In one embodiment, the signal strength for obtaining the second network formats, specifically:
Non-Access Stratum sends solicited message to physical layer；
After physical layer receives the solicited message, by calling radio frequency resource, adjacent cell is measured, and measures
The reporting district information arrived is to Non-Access Stratum.
In one embodiment, the cell information includes: network formats, cell designation.
In one embodiment, the signal strength according to the second network formats determines Target cell, and cell is cut
Forbid re-selecting cell after changing, specifically:
The maximum cell of signal strength in second network formats is determined as Target cell, and determines the Target cell pair
The network formats answered；
Network formats parameter is sent to Non-Access Stratum and forbids cell reselection parameters.
In one embodiment, when the user equipment disconnects wireless network, net is searched in restarting.
On the other hand, a kind of user equipment is also provided, supports two or more network formats, the user equipment
Include:
Wireless communication module is used for for determining whether the user equipment has connected wireless network modulation /demodulation module
When the signal strength of the network formats currently connected is lower than preset value, the signal strength of the second network formats is obtained；
The modulation /demodulation module is also used to determine that Target cell is laggard according to the signal strength of second network formats
The switching of row cell, and forbid re-selecting cell after cell switching；
Wherein, second network formats include at least one network formats.
In one embodiment, the user equipment further include:
Non-Access Stratum sends solicited message to physical layer when for obtaining the signal strength of the second network formats；
Physical layer, by calling radio frequency resource, measures adjacent cell after receiving the solicited message, and
Obtained reporting district information is measured to Non-Access Stratum.
In one embodiment, the cell information includes: network formats, cell designation.
In one embodiment, the physical layer is also used to:
When the user equipment disconnects wireless network, net is searched in restarting.
In one embodiment, the modulation /demodulation module, is also used to, and signal strength in the second network formats is maximum
Cell is determined as Target cell, and determines the corresponding network formats of the Target cell.
The user equipment and its method for switching network of the embodiment of the present invention, by judging whether user equipment connects upper WiFi
Then network obtains the strongest network formats of signal by radio-frequency measurement information of adjacent cells again, makes user equipment registration in the net
In network standard, and by forbidding cell reselection process, mobile phone is avoided to carry out ping-pong reselection.After mobile phone disconnects WiFi network, then
It lifts restrictions, so that mobile phone progress is normally searched net, reuse adoption process, do not influence the normal use of user.Implement a kind of use of the invention
Family device network switching method has the advantages that the power loss for reducing mobile phone under weak signal, and by keeping away
Exempt from the ping-pong reselection effect of mobile phone, while reducing power loss and called cutting off rate, improves the intelligent level of terminal,
The user experience is improved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is a kind of user equipment LTE communication protocol stack structure figure；
Fig. 2 is the wireless communication system schematic diagram of user equipment；
Fig. 3 is a kind of user equipment network switching method flow chart provided in an embodiment of the present invention；
Fig. 4 is another user equipment network switching method flow chart provided in an embodiment of the present invention；
Fig. 5 is a kind of user device architecture schematic diagram provided in an embodiment of the present invention；
Fig. 6 is another user device architecture schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of method for switching network flow chart of user equipment based on Fig. 6.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The user equipment of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
User equipment can be implemented in a variety of manners.For example, user equipment described in the present invention may include such as
Mobile phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer),
The user equipment of PMP (portable media player), navigation device etc. and such as number TV, desktop computer etc.
Fixed terminal.Hereinafter it is assumed that user equipment is mobile terminal.However, it will be understood by those skilled in the art that in addition to especially using
Except the element of mobile purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
It should be understood that the user equipment of the embodiment of the present invention supports two or more network formats, as LTE, CDMA,
The network formats such as CDMA-2000, TD-SCDMA, WCDMA, GSM.
It is a kind of user equipment LTE communication protocol stack structure figure referring to Fig. 1.Include:
Physical layer (1 layer)
Physical layer carries out all information by air interface from MAC transmission channel.The link circuit self-adapting for needing to nurse
(AMC), power control, cell searching (for the purpose of initial synchronisation and handover), other measurements of radio resource control layer
It is worth (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 channel is passed to the transmission channel of physical layer to transmission block (TB), the MAC SDU of multiplexing from one or different patrol
The transmission block (TB) of channel transmission is collected, from the transmission channel in physical layer, the report of scheduling information passes through the error school of HARQ
Just, excellent between the UE of the priority processing between the logic channel of the priority of logical channels of a UE by dynamic dispatching
First grade processing.
Wireless spread-spectrum technology (RLC)
3 kinds of operating modes of RLC operation: transparent mode (TM), Unacknowledged Mode (UM), affirmation mode (AM).
Rlc layer is responsible for the PDU on transfer upper layer, by ARQ error correction (be only applicable to AM data transmission), series connection, segmentation and
The RLC SDU (being only applicable to the transmission of UM and AM data) of recombination.
RLC is also responsible for dividing RLC data PDU (being only applicable to the transmission of UM and AM data) again, repeats detection and (is only applicable to
The transmission of UM and AM data), RLC SDU abandons RLC data PDU (being only applicable to the transmission of AM data), and rearrangement (is only applicable to UM
Transmitted with AM data), RLC is rebuild and protocol error detection (being only applicable to the transmission of AM data).
Wireless heterogeneous networks (RRC)
The main services and function of wireless heterogeneous networks sublayer include the relevant Non-Access Stratum of system information (NAS) of broadcast
Broadcast system information, paging, RRC establishment of connection, safeguard release between access layer (AS) related UE and E-
UTRAN, security function, including key management are established, configuration, and maintenance and releasing wireless loading are point-to-point.
Packet data convergence controls (PDCP)
PDCP layers are responsible for compressing IP datagram head and decompressing, the data (user plane or control plane) of transmission, dimension
It protects PDCP sequence number (SNS), sequence re-establishes the delivery of the upper layer PDU of lower layer, and the SDU of repeated elimination lower layer is being built again
A layer RLC AM radio bearer mapping is made, the user plane data plane and control plane data of encryption and decryption control plane
The integrity protection and integrity verification of data, the discarding based on timer are abandoned and are repeated, SRB and DCCH that PDCP is used and
DTCH different mapping logical channels are to multiple DRB.
Non-Access Stratum (NAS) agreement
The control plane between top-level user equipment (UE) and MME that Non-Access Stratum (NAS) agreement is formed.
NAS agreement supports the mobility and session management program of UE, establishes and keep the IP connection between UE and PDN GW.
It is referring to fig. 2 the network architecture schematic diagram of the mobile communication system where the user equipment of the embodiment of the present invention.Its
The network architecture includes: above-mentioned user equipment 100, E-UTRAN (Evolved UMTS Terrestrial Radio Access
Network, the UMTS Terrestrial radio access network of evolution) (unlabeled in figure), evolution block core (EPC) (unlabeled in figure),
Home subscriber servers (HSS) 107, network (for example, internet) (unlabeled in figure) and circuit switching system (are not marked in figure
Number).E-UTRAN includes 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 moving tubes
Manage entity 106, gateway 103 and packet data network (PDN) gateway 105.Mobile management entity 104 is processing user
The control node of signaling between equipment 100 and EPC.Mobile management entity 104 provides carrying and connection management.All User IPs
Grouping is transmitted by gateway 103, and gateway 103 is itself coupled to PDN Gateway 105.PDN Gateway 105 provides UE IP
Address distribution and other function.PDN Gateway 105 is connected to network, for example, internet.
Circuit switching system includes interaction solution module (IWS) 108, mobile switching centre (MSC) 109, base station 110
With movement station 111.In one aspect, circuit switching system can be communicated by IWS and MME with EPS.
Based on above-mentioned user equipment LTE communication protocol stack structure shown in FIG. 1, propose that method for switching network of the invention is each
A embodiment.
Embodiment 1
As shown in figure 3, being a kind of user equipment network switching method flow chart provided in an embodiment of the present invention, including step
It is rapid:
S101 judges the signal strength of the network formats currently connected when user equipment has connected wireless network.
It should be understood that the user equipment of the embodiment of the present invention supports two or more network formats, as LTE, CDMA,
The network formats such as CDMA-2000, TD-SCDMA, WCDMA, GSM.User equipment can pass through mobile network (e.g., 2G/3G/4G)
Or wireless network (WLAN) accesses internet.
In one embodiment, the WLAN module of user equipment adds a flag bit, and the flag bit is for judging user
Whether equipment passes through connection WLAN access internet.Such as, modulation /demodulation module (Modem) receives the mark that WLAN module is sent
Position, e.g., the value of the flag bit are 1, then it represents that current user equipment has connected WLAN, at this point, modulation /demodulation module actively judges
The signal strength for the network formats that user equipment is presently in.
S102 when the signal strength of the network formats currently connected is lower than preset value, obtains the signal of the second network formats
Intensity.
In one embodiment, the signal strength for the network formats that user equipment currently connects includes but is not limited to two
Kind mode, mode one: judging according to signal lattice number shown by user equipment upper interface, if signal lattice number system is less than two
Lattice；Mode two: judging according to the reception level of user equipment, such as receives level and is less than -90dBm.When meeting above-mentioned preset value
When condition, user equipment modulation /demodulation module obtains the signal strength of the second network formats.
In one embodiment, the signal strength information of other network formats is obtained, Non-Access Stratum is by carrying signaling
(Call Manger, CM) sends a solicited message to physical layer, after physical layer receives the solicited message, is penetrated by calling
Frequency resource (RF), measures adjacent cell, and the reporting district information that measurement is obtained is to Non-Access Stratum.Cell information is main
Include: network formats (RAT), signal strength, cell designation (cell_id) etc..
It will be understood by those skilled in the art that second network formats include at least one network formats, it is such as current
What user equipment was accessed is GSM (2G) network, then the second network formats include LTE, CDMA, CDMA-2000, TD-
SCDMA, WCDMA etc..
S103 carries out cell switching after determining Target cell according to the signal strength of second network formats, and small
Forbid re-selecting cell after area's switching.
In one embodiment, the maximum cell of signal strength in the second network formats is determined as Target cell, and really
Determine the corresponding network formats (RAT) of the Target cell；Network formats parameter is sent to Non-Access Stratum (NAS module) and is forbidden
Cell reselection parameters.Wherein, forbid cell reselection parameters to be also used for informing that NAS module only carried out this RAT searches net, forbid cell
Reuse adoption process increases power consumption and called cutting off rate to prevent mobile phone from carrying out reuse adoption process.After NAS module receives the information, starting
Search net process.NAS will prepare to search the relevant information (PLMN, RAT, BAND) of net and cell reselection parameters forbidden to send RRC mould to
Block, after RRC module receives parameter information, notice physical layer starts search net, registration.
A kind of user equipment network switching method based on the embodiment of the present invention reduces user equipment under weak signal
Power loss.Such as, user equipment is mobile phone, and 4G network is being currently used in mobile phone, but 4G network signal is very weak, only one
Lattice signal, mobile phone has connected WiFi network again at this time.Using the program, mobile phone can find the best cell of signal, if, at this time
2G signal is highly stable, since mobile phone has connected WiFi, is not required to be surfed the Internet with 4G again, can search for 2G network automatically, re-register
2G network, and mobile phone can be only registered on 2G network at this time, without cell reselection process, it is therefore prevented that the table tennis weight of 2G to 4G
Choosing, reduces power consumption and called cutting off rate.
Embodiment 2
As shown in figure 4, being a kind of user equipment network switching method flow chart provided in an embodiment of the present invention, including step
It is rapid:
S301, judges whether current user equipment has connected wireless network.
In one embodiment, the WLAN module of user equipment adds a flag bit, and the flag bit is for judging user
Whether equipment passes through connection WLAN access internet.Such as, modulation /demodulation module (Modem) receives the mark that WLAN module is sent
Position, e.g., the value of the flag bit are 1, then it represents that current user equipment has connected WLAN, at this point, modulation /demodulation module actively judges
The signal strength for the network formats that user equipment is presently in.
S302, judges whether the signal strength of the network formats currently connected is lower than preset value.
In one embodiment, the signal strength for the network formats that user equipment currently connects includes but is not limited to two
Kind mode, mode one: judging according to signal lattice number shown by user equipment upper interface, if signal lattice number system is less than two
Lattice；Mode two: judging according to the reception level of user equipment, such as receives level and is less than -90dBm.When meeting above-mentioned preset value
When condition, user equipment modulation /demodulation module obtains the signal strength of the second network formats.
In one embodiment, the signal strength information of other network formats is obtained, Non-Access Stratum is by carrying signaling
(Call Manger, CM) sends a solicited message to physical layer, after physical layer receives the solicited message, is penetrated by calling
Frequency resource (RF), measures adjacent cell, and the reporting district information that measurement is obtained is to Non-Access Stratum.Cell information is main
Include: network formats (RAT), signal strength, cell designation (cell_id) etc..
It will be understood by those skilled in the art that second network formats include at least one network formats, it is such as current
What user equipment was accessed is GSM (2G) network, then the second network formats include LTE, CDMA, CDMA-2000, TD-
SCDMA, WCDMA etc..
S303 obtains the signal strength of the second network formats.
S304, by calling radio frequency resource, the reporting district information that adjacent cell is measured, and measurement is obtained.
In one embodiment, as shown in Figure 1, the Non-Access Stratum (NAS) in the first protocol stack is by carrying signaling (Call
Manger, CM) to physical layer one solicited message of transmission, after physical layer receives the solicited message, by calling radio-frequency module,
Adjacent cell is measured, and the reporting district information that measurement is obtained is to Non-Access Stratum.Cell information mainly includes: network system
Formula (RAT), signal strength, cell designation (cell_id) etc..
S305 carries out cell switching after determining Target cell according to the signal strength of the second network formats, and cell is cut
Forbid re-selecting cell after changing.
In one embodiment, the maximum cell of signal strength in network formats is determined as Target cell, and determines institute
State the corresponding network formats of Target cell (RAT)；The Non-Access Stratum (NAS module) of protocol stack sends network formats parameter and taboo
Only cell reselection parameters.Wherein, forbid cell reselection parameters to be also used for informing that NAS module only carried out this RAT searches net, forbid small
Area's reuse adoption process increases power consumption and called cutting off rate to prevent mobile phone from carrying out reuse adoption process.After NAS module receives the information, open
It is dynamic to search net process.NAS will prepare to search the relevant information (PLMN, RAT, BAND) of net and cell reselection parameters forbidden to send RRC to
Module, after RRC module receives parameter information, notice physical layer starts search net, registration.
S306 re-searches for network.
In one embodiment, user equipment can read the PLMN list kept from NV when searching net again, then
Start to scan the corresponding frequency point of these PLMN, start registered network if scanning successfully, to terminal institute if scanning failure
There is the frequency point of support to be scanned.If scanning or 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. suspend mode every 30 seconds wake-up modem and has been saved frequency point+full frequency band search (spending the several seconds), and such 10
It is secondary；
2. suspend mode every 45 seconds wake-up modem and has been saved frequency point+full frequency band search (spending the several seconds), and such 10
It is secondary；
3. suspend mode, modem were waken up every 60 seconds and are carried out: having saved frequency point+do not include and saved the full frequency band of frequency range and searched
Rope so will do it every 15 minutes and once save frequency point+full frequency band search；So it is sustained.
Unlike a kind of user equipment network switching method provided from foregoing invention embodiment, in the embodiment of the present invention
For the method provided after user equipment disconnection of wireless network (WiFi), user equipment can then search net again, according to modulatedemodulate mode transfer
The preset net sequence of searching of block carries out searching net, and net is such as searched since 4G, and in this way after disconnection WiFi network, mobile phone has been returned on 4G,
The normal online that will not influence user uses.
Embodiment 3
As shown in figure 5, for a kind of user device architecture schematic diagram provided by the embodiment of the present invention, comprising:
Wireless communication module 101, for determining whether the user equipment has connected wireless network.
Modulation /demodulation module 102 when the signal strength of the network formats for currently connecting is lower than preset value, obtains second
The signal strength of network formats；
The modulation /demodulation module 102 is also used to determine Target cell according to the signal strength of second network formats
Cell switching is carried out afterwards, and forbids re-selecting cell after cell switching.
In one embodiment, in one embodiment, the wireless communication module 101 of user equipment adds a mark
Position, the flag bit is for judging whether user equipment passes through connection WLAN access internet.Such as, modulation /demodulation module 102 receives
The flag bit that wireless communication module 101 is sent, e.g., the value of the flag bit are 1, then it represents that current user equipment has connected WLAN,
At this point, modulation /demodulation module actively judges the signal strength for the network formats that user equipment is presently in.
In one embodiment, the signal strength for the network formats that user equipment currently connects includes but is not limited to two
Kind mode, mode one: judging according to signal lattice number shown by user equipment upper interface, if signal lattice number system is less than two
Lattice；Mode two: judging according to the reception level of user equipment, such as receives level and is less than -90dBm.When meeting above-mentioned preset value
When condition, user equipment modulation /demodulation module obtains the signal strength of the second network formats.
In one embodiment, the signal strength information for obtaining other network formats passes through call management layer (Call
Manger, CM) to physical layer one solicited message of transmission, after physical layer receives the solicited message, passes through and call radio frequency resource
(RF), adjacent cell is measured, and the reporting district information that measurement is obtained is to call management layer.Cell information mainly wraps
Contain: network formats (RAT), signal strength, cell designation (cell_id) etc..
It will be understood by those skilled in the art that second network formats include at least one network formats, it is such as current
What user equipment was accessed is GSM (2G) network, then the second network formats include LTE, CDMA, CDMA-2000, TD-
SCDMA, WCDMA etc..
In one embodiment, the maximum cell of signal strength in the second network formats is determined as Target cell, and really
Determine the corresponding network formats (RAT) of the Target cell；Network formats parameter is sent to Non-Access Stratum (NAS module) and is forbidden
Cell reselection parameters.Wherein, forbid cell reselection parameters to be also used for informing that NAS module only carried out this RAT searches net, forbid cell
Reuse adoption process increases power consumption and called cutting off rate to prevent mobile phone from carrying out reuse adoption process.After NAS module receives the information, starting
Search net process.NAS will prepare to search the relevant information (PLMN, RAT, BAND) of net and cell reselection parameters forbidden to send RRC mould to
Block, after RRC module receives parameter information, notice physical layer starts search net, registration.
Embodiment 4
In conjunction with Fig. 6 and Fig. 7, a kind of method for switching network provided in an embodiment of the present invention is proposed, it is to be understood that this hair
The user equipment of bright embodiment is the terminal device that can install phonecard, and in following embodiment, it is detailed to take the mobile phone as an example progress
Explanation.
Referring to the structural schematic diagram for the user equipment that Fig. 6 is the embodiment of the present invention.The user equipment of one embodiment of the invention
It include: the first processing chip 200, second processing chip 300, the first radio frequency 205, WLAN module 207, the second radio frequency 305, first
Subscriber Identity Module 206, second user identification card 306, codec 204, the first logic switch 401, the second logic switch 402,
Camera 600, microphone 500.Wherein, the first processing chip 200 includes application program processing module 202, Digital Signal Processing
Chip 203 and the first protocol stack 201.Second processing chip includes second protocol stack 301.
It should be understood that digital signal processing chip 203 can also be by realizing independently of the chip of the first processing chip 200.
First processing chip 200 and second processing chip 300 between connected by serial ports (USB) and GPIO/SDIO mouthfuls, with
It realizes and controls the definition and transmitting of signal between two processing chips, for example, carrying out two processing suspend mode of chip, wake-ups, together
The control etc. of chip boot sequence when the control of step, switching on and shutting down.
By serial ports (USB), application program processing module 202 and second protocol stack 301 carry out control signal and data
Transmission.
Two protocol stacks (the first protocol stack 201 and second protocol stack 301) in present invention implementation are by application program
Reason module 202 carries out driving configuration and control.
Subscriber Identity Module (the first Subscriber Identity Module 206 and second user identification card 306) with user equipment for being connected
It connects and information exchange, dependency number needed for mobile communication business (CS voice service, PS data service and PS voice service) is provided
According to, and store user information, short message inside it, execute authentication arithmetic and generate cryptographic keys etc..
When Subscriber Identity Module is interacted with user equipment, the signal of Subscriber Identity Module presence or absence is detected only in the instantaneous production of booting
It is raw, in the presence of booting can't detect Subscriber Identity Module, it will be prompted to " insertion Subscriber Identity Module ".After user equipment booting, use
Communication in 28 seconds is primary between family equipment and Subscriber Identity Module, complete some fixations communication check (for example, Subscriber Identity Module whether
It is in place etc.).
First Subscriber Identity Module 206 and second user identification card 306 can manage related to similar and different technical standard
The different user of connection.In specific non-limiting example, technical standard can for the 2G communication technology (for example, GSM, GPRS, EDGE),
The 3G communication technology (for example, WCDMA, TDS-CDMA), the 4G communication technology (for example, LTE, TD-LTE) or any other movement are logical
Letter technology (for example, 4G, 4.5G etc.).
Wireless access technology involved in first radio frequency 205 and the second radio frequency 305 may 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 handle complicated logical operation
And carry out task distribution etc..In one embodiment, application program processing module 202 refers to Android operation system, Yi Jiji
In the various apk of Android operation system.
In an embodiment of the present invention, application program processing module 202 provides interactive interface for user, by user's input
(for example, user connects mobile network such as by the related starting that user interface inputs, the operation of 2G/3G/4G refers to operational order
Enable) it is transferred to the first protocol stack 201 or second protocol stack 301.
The Wi-Fi (Wireless Internet Access) of the support user equipment of WLAN module 207.The module can be internally or externally couple to
Terminal device.Wi-Fi (Wireless Internet Access) technology involved in the module may include WLAN (Wireless LAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
First protocol stack 201 and second protocol stack 301 include the various protocol stacks with the network formats of network interaction, example
Such as, the protocol code provided in the communication standards such as LTE/WCDMA/GSM/TDSCDMA/1X/CDMA/EVDO.These standards
Agreement is user equipment and carrier network interact (for example, by data traffic online, pass through VOLTE video calling or
Person is made a phone call by CS circuit domain) must be complied with.
Camera 600 includes hardware appropriate, logical device, circuit and/or coding, for acquiring picture signal.
Microphone 500 includes hardware appropriate, logical device, circuit and/or coding, for acquiring voice signal or output
Voice signal.In addition, the user equipment of the embodiment of the present invention further includes display screen (not shown in figure 1), for showing that image is believed
Breath.
Codec (Codec) 204 include hardware appropriate, logical device, circuit and/or coding, for carry out A/D with
And D/A conversion.
Digital signal processing chip 203 includes hardware appropriate, logical device, circuit and/or coding, for carrying out audio
Signal processing, for example, the Audio Signal Processings such as the echo in communication process inhibits, noise suppressed, and for carrying out image
Signal processing.
First radio frequency 205 is used to transmit signals to base station network (eNodeB) and receives the signal that base station network is sent.
Second radio frequency 305 is used to transmit signals to base station network (eNodeB) and receives the signal that base station network is sent.
First logic switch 401 is connect with the first processing chip 200 and the first Subscriber Identity Module 206 respectively, for handling core first
Under the control for the first control instruction that piece 200 exports, make the first Subscriber Identity Module 206 and the first protocol stack 201 or second protocol
Stack 301 connects.
Second logic switch 402 connect with the first processing chip 200 and second user identification card 306 respectively, is used for the
One processing chip 200 export the second control instruction control under, make second user identification card 306 and the first protocol stack 201 or
Second protocol stack 301 connects.
In one embodiment, the first processing chip 200 is realized by output low and high level to 401 He of the first logic switch
The control of second logic switch 402.For example, when exporting high level, the conducting of the first logic switch 401 identifies the first user
Card 206 is connect with the first protocol stack 201；And when exporting low level, the first Subscriber Identity Module 206 is connect with second protocol stack 301.
Or when exporting high level, the conducting of the second logic switch 401 connect second user identification card 306 with the first protocol stack 201；
And when exporting low level, second user identification card 306 is connect with second protocol stack 301.
In one embodiment of this invention, if the first Subscriber Identity Module 206 is connect with the first protocol stack 201, first is used
Family identification card 206 can be resided in by the first protocol stack 201 first movement communication network PS (Packet Switching, point
Group exchange) domain and CS (Circuit Switching, circuit switching) domain.The first Subscriber Identity Module 206 can pass through first as a result,
Mobile communications network carries out CS voice and PS data service.
Likewise, second user identification card 306 can lead to if second user identification card 306 is connect with the first protocol stack 201
Cross ps domain and the domain CS that the first protocol stack 201 resides in first movement communication network.Second user identification card 306 can lead to as a result,
It crosses first movement communication network and carries out CS voice and PS data service.
If the first Subscriber Identity Module 206 establishes connection with second protocol stack 301, the first Subscriber Identity Module 206 can pass through
Second protocol stack 301 resides in the ps domain of the second mobile communications network.The first Subscriber Identity Module 206 can be moved by second as a result,
Dynamic communication network carries out PS data service.
Likewise, if second user identification card 306 and second protocol stack 301 establish connection, second user identification card 306
The ps domain of the second mobile communications network can be resided in by second protocol stack 301.Second user identification card 306 can pass through as a result,
Second mobile communications network carries out PS data service.
First movement communication network and the second mobile communications network can be the heterogeneous networks of different operators, can also be same
The similar and different network of one operator.
Based on the structure of above-mentioned user equipment, a kind of method for switching network of double card user equipment, flow chart ginseng are provided
See Fig. 7, comprising steps of
S401, judges whether current user equipment has connected wireless network.
S402, judges whether the signal strength of the network formats currently connected is lower than preset value.
S403 obtains the signal strength of the first Subscriber Identity Module and second user identification card respectively.
In one embodiment, due to the first movement communication network and the second mobile communications network of Subscriber Identity Module connection
The heterogeneous networks that can be different operators can also be the similar and different network of same operator.For example, user equipment first
Subscriber Identity Module is China Mobile, and second user identification card is China Unicom, China Mobile's 4G net of current user equipment connection
Network signal is weaker, then it represents that when the resource that base station is distributed to the user equipment is less, equipment will increase transimission power, in order to make
Base station can distribute more resources, therefore, when user equipment is under weak signal, will increase power consumption.If at this point, user has
Two Subscriber Identity Modules, the then Subscriber Identity Module that can star another idle state measure cell information.
S404 judges that the signal strength of the first Subscriber Identity Module is greater than the signal strength of second user identification card.
Specifically, whether the step for calling the first radio frequency or the second radio frequency to obtain cell information really.Judgement
The signal strength standard of Subscriber Identity Module can based on the signal strength of consolidated network standard, such as compare the first Subscriber Identity Module and
The 3G signal of second user identification card；The all-network that first Subscriber Identity Module and second user identification card can also be supported
The signal strength of standard, e.g., above-mentioned two Subscriber Identity Module support network formats 2G, 3G, 4G respectively, then compare these network systems
The signal strength of formula, the signal whether final signal strength for determining the first Subscriber Identity Module is greater than second user identification card are strong
Degree.
S405, the first radio frequency measure adjacent cell, and by the reporting district information of measurement.
In one embodiment, if the signal strength of the first Subscriber Identity Module is strong greater than the signal of second user identification card
Degree, then the first processing chip 200 controls the first logic switch 401 and connect with the first protocol stack 201, in the first protocol stack 201
Non-Access Stratum (NAS) sends a solicited message to physical layer by carrying signaling (Call Manger, CM), and physical layer receives
To after the solicited message, by calling the first radio frequency 205, on the cell information for being measured to adjacent cell, and measurement being obtained
Offer Non-Access Stratum.Cell information mainly includes: network formats (RAT), signal strength, cell designation (cell_id) etc..
S406, the second radio frequency measure adjacent cell, and by the reporting district information of measurement.
In one embodiment, if the signal strength of the first Subscriber Identity Module is strong less than the signal of second user identification card
Degree, then the first processing chip 200 controls the second logic switch 402 and connect with second protocol stack 202, in second protocol stack 202
Non-Access Stratum (NAS) sends a solicited message to physical layer by carrying signaling (Call Manger, CM), and physical layer receives
To after the solicited message, by calling the second radio frequency 206, on the cell information for being measured to adjacent cell, and measurement being obtained
Offer Non-Access Stratum.Cell information mainly includes: network formats (RAT), signal strength, cell designation (cell_id) etc..
S407 carries out cell switching, and forbids cell again after cell switching.
In one embodiment, the maximum cell of signal strength in network formats is determined as Target cell, and determines institute
State the corresponding network formats of Target cell (RAT)；As described above, if a network system corresponding to the first Subscriber Identity Module
Formula signal strength is maximum, then sends network formats parameter to the Non-Access Stratum of the first protocol stack (NAS module) and forbid cell
Reselecting parameters.Wherein, forbid cell reselection parameters to be also used for informing that NAS module only carried out this RAT searches net, forbid cell reselection
Process increases power consumption and called cutting off rate to prevent mobile phone from carrying out reuse adoption process.After NAS module receives the information, net is searched in starting
Process.NAS will prepare to search the relevant information (PLMN, RAT, BAND) of net and cell reselection parameters forbidden to send RRC module to,
After RRC module receives parameter information, notice physical layer starts search net, registration.
S407 re-searches for network.
Specifically, when user equipment and wireless network disconnect, the network connection flag position of WLAN module is labeled as
0, and it is sent to modulation /demodulation module.Modulation /demodulation module, which then re-starts, searches net.And searching net process then and be according to setting at this time
Standby normally to search the progress of net process, the network formats of search are then that the RAT prestored by modulation /demodulation module searches net sequence and determines.
A kind of user equipment network switching method based on the embodiment of the present invention, when user equipment supports double card or more
When card, it is strongest as network switching target to can choose signal in Subscriber Identity Module, and connecting wireless network (such as
When WiFi), forbid ping-pong reselection after handover network, when user equipment disconnects wireless network, then lifts restrictions, actively open
Dynamic search network, re-selecting cell, thus reduce user equipment power consumption and called cutting off rate.
Professional should also be realised that unit and algorithm described in conjunction with the examples disclosed in the embodiments of the present disclosure
Step can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and software
Interchangeability generally describes each exemplary composition and step according to function in the above description.These functions are studied carefully
Unexpectedly it is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technique people
Member can use different methods to achieve the described function each specific application, but this realization is it is not considered that super
The scope of the present invention out.
The step of method or method described in conjunction with the examples disclosed in this document, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or any other
In the storage medium of form.
For illustrative purposes, the description of front has used specific term, to provide a thorough understanding of the present invention.So
And it will be apparent to those skilled in the art that not needing concrete details to practice the present invention.The present invention
The foregoing description of specific embodiment be to present for purposes of illustration and description.They are not intended in detail or send out this
It is bright to be limited to disclosed precise forms.In view of religious doctrine above, many modifications and variations are possible.In order to best explain this
The principle and its practical application of invention and these embodiments have shown and described, to enable others skilled in the art
Best using the present invention and with the various embodiments for being suitable for the expected specific various modifications used.It is intended to model of the invention
It encloses by following claims and its equivalent and limits.
Claims (10)
1. a kind of user equipment network switching method, the user equipment support the network system of two or more mobile network
Formula, which is characterized in that the described method includes:
When user equipment has connected wireless network, the signal strength of the network formats of the mobile network currently connected is judged；
When the signal strength of the network formats of the mobile network currently connected is lower than preset value, the network of the second mobile network is obtained
The signal strength of standard；
Cell switching is carried out after determining Target cell according to the signal strength of the network formats of second mobile network, and small
Forbid re-selecting cell after area's switching.
2. user equipment network switching method according to claim 1, which is characterized in that the second mobile network of the acquisition
Network formats signal strength, specifically:
Non-Access Stratum sends solicited message to physical layer；
After physical layer receives the solicited message, by calling radio frequency resource, adjacent cell is measured, and measure and obtain
Reporting district information is to Non-Access Stratum.
3. user equipment network switching method according to claim 2, which is characterized in that the cell information includes: net
Network standard, cell designation.
4. user equipment network switching method according to claim 1, which is characterized in that described according to the second mobile network
The signal strengths of network formats determine Target cell, and forbid re-selecting cell after cell switching, specifically:
The maximum cell of signal strength in the network formats of second mobile network is determined as Target cell, and determines the target
The corresponding network formats of cell；
Network formats parameter is sent to Non-Access Stratum and forbids cell reselection parameters.
5. user equipment network switching method according to claim 1, which is characterized in that connect when the user equipment disconnects
When connecing wireless network, net is searched in restarting.
6. a kind of user equipment supports the network formats of two or more mobile network, which is characterized in that the user sets
It is standby to include:
Wireless communication module, for determining whether the user equipment has connected wireless network；
Modulation /demodulation module, the network system of the mobile network for having connected wireless network when user equipment, also, currently connecting
When the signal strength of formula is lower than preset value, the signal strength of the network formats of the second mobile network is obtained, is moved according to described second
The signal strength of the network formats of dynamic network carries out cell switching after determining Target cell, and forbids gravity treatment small after cell switching
Area.
7. user equipment according to claim 6, which is characterized in that the user equipment further include:
Non-Access Stratum sends solicited message to physical layer when the signal strength of the network formats for obtaining the second mobile network；
Physical layer, by calling radio frequency resource, measures adjacent cell, and measure after receiving the solicited message
Obtained reporting district information is to Non-Access Stratum.
8. user equipment according to claim 6, which is characterized in that the cell information includes: network formats, cell mark
Show.
9. user equipment according to claim 7, which is characterized in that the physical layer is also used to:
When the user equipment disconnects wireless network, net is searched in restarting.
10. user equipment according to claim 6, which is characterized in that the modulation /demodulation module is also used to, by second
The maximum cell of signal strength is determined as Target cell in the network formats of mobile network, and determines that the Target cell is corresponding
Network formats.
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| CN109041144B (en) * | 2017-01-06 | 2020-03-10 | 华为技术有限公司 | Intersystem information interaction method, wireless communication system and user equipment |
| WO2019033369A1 (en) * | 2017-08-17 | 2019-02-21 | 华为技术有限公司 | Method and apparatus for moving between communication systems |
| US10512005B2 (en) * | 2017-09-29 | 2019-12-17 | Nokia Technologies Oy | Security in intersystem mobility |
| US10292078B1 (en) * | 2017-11-08 | 2019-05-14 | Htc Corporation | Device and method of handling an evolved packet system bearer context |
| CN109819488B (en) * | 2017-11-20 | 2021-01-15 | 华为技术有限公司 | Session switching method, device and system |
| CN111148166B (en) * | 2019-03-14 | 2021-11-05 | 广东小天才科技有限公司 | Network optimization method based on wearable device and wearable device |
| CN112423227B (en) * | 2019-08-21 | 2023-09-26 | 中兴通讯股份有限公司 | Intelligent power saving method and system for 5G terminal, terminal equipment and storage medium |
| CN116055621B (en) * | 2022-05-30 | 2023-10-20 | 荣耀终端有限公司 | Network signal display method, terminal equipment, chip and storage medium |
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