CN101478809A - Dual-mode single-standby mobile terminal and method for switching between heterogeneous networks - Google Patents
Dual-mode single-standby mobile terminal and method for switching between heterogeneous networks Download PDFInfo
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- CN101478809A CN101478809A CNA2009100011359A CN200910001135A CN101478809A CN 101478809 A CN101478809 A CN 101478809A CN A2009100011359 A CNA2009100011359 A CN A2009100011359A CN 200910001135 A CN200910001135 A CN 200910001135A CN 101478809 A CN101478809 A CN 101478809A
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Abstract
The invention relates to the field of mobile communication, particularly relating to the technology for the dual-mode single waiting mobile terminal to be switched in the heterogeneous network. The invention provides a dual-mode single waiting mobile terminal and the switching method thereof in the heterogeneous network, including: when the mobile terminal stands by in the first network, search the second network periodically; if the second network is found, the mobile terminal breaks the connection with the first network and establishes the connection with the second network; the second network is the optimize standby network of the mobile terminal. While standing by in the first network, the mobile terminal searches the second network periodically and switches to the second network after finding the second network, so the mobile terminal can adapt to the selection and switching of the network automatically according to the actual network.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the technology that double-mode single-standby mobile terminal switches between heterogeneous access networks.
Background technology
The development trend that following mobile radio communication presents broadband and multiple heterogeneous radio access networks network and deposits.In heterogeneous network environment, multiple Radio Access Network covers the same area and service is provided will be general scene; On the other hand, reduction along with the network interface cost, mode mobile terminal becomes the trend of development, portable terminal will have two heterogeneous wireless interfaces simultaneously, such as GSM (Global System ForMobile Communication, global mobile communication) and CDMA (Code Division MultiplexAddress, code division multiple access) wave point, TD-CDMA (Time Division Synchronous CodeDivision Multiple Access, the time division synchronous code division multichannel inserts) wave point or Wi-Fi (Wireless Fidelity, Wireless Fidelity) and WiMAX (World Interoperability for MicrowaveAccess, World Interoperability for Microwave Access, WiMax) wave point etc.
Though double-mode double-standby mobile terminal can be supported the communication of dual network simultaneously, but because cost is used the double-mode single-standby mobile terminal that the more wireless communication that still can support two heterogeneous radio access networks networks then can only be supported single network service at one time at present.
Because TD-CDMA and GSM procotol have a lot of compatibility, the mutual switching rate of network also very fast each other, therefore present double-mode single-standby mobile terminal can be supported the adaptively selected and switching between TD-CDMA network and the GSM network.And for there not being compatibility between those procotols, perhaps compatible less network (such as cdma network and GSM network) does not then also have at present double-mode single-standby mobile terminal can realize adaptively selected between these Access Networks; That is to say that present double-mode single-standby terminal is not for having compatibility between those procotols, perhaps compatible less network can't be dynamically according to the adaptively selected access network of real network situation.
Summary of the invention
A kind of double-mode single-standby mobile terminal that the embodiment of the invention provides and in method for switching among heterogeneous networks makes that portable terminal can be according to the adaptively selected handover network of real network situation.
A kind of double-mode single-standby mobile terminal comprises in method for switching among heterogeneous networks:
When the standby network of described portable terminal is first network, periodic search second network;
If search described second network, described portable terminal disconnection is connected with described first network, and foundation is connected with described second network; Described second network is the preferred standby network of described portable terminal.
Described portable terminal set up with being connected of described second network after, also comprise:
If described portable terminal judges the described second network lost network, then with described first network as standby network, and search for described first network and second network;
If described portable terminal searches described second network in the setting-up time section, then set up and being connected of described second network; Search described first network and do not search described second network if surpass described setting-up time section, then set up and being connected of described first network.
With first network as standby network before, also comprise:
During described mobile terminal-opening, search for described first network and second network;
If described portable terminal searches described second network in the setting-up time section, then set up and being connected of described second network; Search described first network and do not search described second network if surpass described setting-up time section, then set up and being connected of described first network.
Described portable terminal searches described second network in the setting-up time section before, also comprise:
If described portable terminal searches described first network in described setting-up time section, then connect with described first network; And
Described portable terminal setting up with being connected of described second network before, also comprise: disconnection is connected with described first network.
A kind of double-mode single-standby mobile terminal comprises:
First mixed-media network modules mixed-media, be used to search for first network and with described first network service;
Second mixed-media network modules mixed-media, be used to search for second network and with described second network service;
Main control module is used for regularly controlling described second mixed-media network modules mixed-media and searching for described second network by the described first mixed-media network modules mixed-media standby process; If search described second network, then control described first mixed-media network modules mixed-media and disconnect and being connected of described first network, control being connected of described second mixed-media network modules mixed-media foundation and described second network; Described second network is the preferred standby network of described portable terminal.
Described main control module also is used for behind the described second mixed-media network modules mixed-media lost network: control described first mixed-media network modules mixed-media and second mixed-media network modules mixed-media and search for first network and second network respectively; If described second mixed-media network modules mixed-media searches second network in the setting-up time section, then described master control module controls second mixed-media network modules mixed-media foundation is connected with described second network; If surpass described setting-up time section, described second mixed-media network modules mixed-media does not search second network, and then main control module is provided with described first mixed-media network modules mixed-media and is in holding state.
Described main control module also is used for behind described mobile terminal-opening: control described first mixed-media network modules mixed-media and second mixed-media network modules mixed-media and search for first network and second network respectively; If described second mixed-media network modules mixed-media searches second network in the setting-up time section, then described master control module controls second mixed-media network modules mixed-media foundation is connected with described second network; If surpass described setting-up time section, described second mixed-media network modules mixed-media does not search second network, and then main control module is provided with first mixed-media network modules mixed-media and is in holding state.
The double-mode single-standby mobile terminal of the embodiment of the invention is because under first network during standby, periodic search second network, when searching second network, then switch to second network, thereby realize portable terminal, handover network adaptively selected according to the network condition of reality.
When mobile terminal-opening, mobile terminal parallel carries out the search of first network and second network, can search available network as early as possible.And behind the second network lost network, directly switching first network is standby network, thereby saves the web search judgement time.
Description of drawings
Fig. 1 is that the double-mode single-standby mobile terminal network connection state of the embodiment of the invention shifts schematic diagram;
Fig. 2 is the double-mode single-standby mobile terminal internal structure schematic diagram of the embodiment of the invention;
Fig. 3 is a method flow diagram of selecting switching and network access behind the double-module terminal start-up of the embodiment of the invention.
Embodiment
The double-mode single-standby mobile terminal that the embodiment of the invention provides can realize that the self adaptation between the incompatible or compatible less wireless access network of procotol switches, such as the switching that realizes between CDMA Access Network and the GSM Access Network, realize that perhaps the self adaptation between CDMA Access Network and the WiMAX Access Network is switched.Switch to example with the self adaptation between double-mode single-standby mobile terminal realization CDMA Access Network and the GSM Access Network below and tell about concrete scheme, for the switching between other Access Network, those skilled in the art can easyly realize according to the disclosed technology contents of the embodiment of the invention, do not enumerate one by one herein.
In double-mode single-standby mobile terminal, can have certain and select switchover policy, promptly set preferential one of them network of selecting to switch to.Preferentially switch to (being that cdma network is the preferred standby network of portable terminal) in the cdma network such as setting in the switchover policy, then portable terminal can be taked following operation according to this strategy:
If portable terminal when not carrying out any communication service (portable terminal keeps and being connected of GSM network, but) under the GSM network during standby is understood the periodic search cdma network; Will preferentially select cdma network to communicate in case search cdma network, then portable terminal can interrupt and being connected of GSM network, and switches to cdma network, promptly sets up and being connected of cdma network.
If portable terminal set up with being connected of cdma network after, if because certain former thereby lost network (promptly the cdma network signal of Jie Shouing is less than certain predetermined value, cause and to communicate to connect normally with cdma network, and this state duration surpasses the limiting time section), it is the zone that portable terminal has entered not to be had with any cdma network, then to be directly switch into the GSM net be standby network to portable terminal, and begin to search for the GSM network simultaneously; If described portable terminal searches the GSM network in the setting-up time section, then set up and being connected of described GSM network; If described in the case first network also search less than, be first network then, and keep search described first network with the holding state default setting, also will keep periodicity search around here synchronously to described second network.In addition, in order to make the user have network to use as far as possible, the present invention understands fasterly connects Access Network available in portable terminal and the current environment, portable terminal searches cdma network in the setting-up time section before, if searched the GSM network, then connect with the GSM network; Afterwards, if search cdma network, then disconnect and being connected of GSM network, foundation is connected with cdma network.
After start, portable terminal is if be in the state that is connected with any network, and the process of setting up the network connection can be the same with above-mentioned start: portable terminal had both been searched for the GSM network and also searched for cdma network; If described portable terminal searches cdma network in the setting-up time section, then set up and being connected of cdma network; Search the GSM network and do not search cdma network if surpass described setting-up time section, then set up and being connected of described GSM network.In addition, make that for faster available Access Network connects in portable terminal and the current environment, portable terminal searches cdma network in the setting-up time section before,, then connect with the GSM network if searched the GSM network; Afterwards, if search cdma network, then disconnect and being connected of GSM network, foundation is connected with cdma network.
Behind the mobile terminal-opening, the detailed process of searching for described cdma network and GSM network is: behind the mobile terminal-opening, obtain PRL information and this machine of storing into of cdma network from the UIM card, owing to can search for cdma network according to PRL information, therefore, this machine obtains can to begin after the PRL information search to cdma network; Owing to be double-mode single-standby, portable terminal is after the PRL information of backup CDMA, main control module just will be cut to SIM card, communicate by letter with SIM card, begin to search for the GSM network according to the web search rule in the SIM card, needing constantly to communicate by letter with SIM card in the GSM network search procedure obtains to search for the needed relevant information of GSM network.SIM card and UIM card both can be independent cards, also can be integrated in the card.Above-mentioned handoff procedure can be referring to state transition diagram as shown in Figure 1.
As shown in Figure 2, comprise that at double-mode single-standby mobile terminal main control module 201 and two are respectively based on module---the CDMA module 202 and the gsm module 203 of different network protocol.CDMA module 202 can realize the search of CDMA Access Network, connect and communicate by letter with cdma network; Gsm module 203 can be realized the search of GSM Access Network, connect and GSM network service.These two modules all have antenna and wireless transmission, receiver module (wireless communication module) separately respectively, and based on the protocol stack of each automatic network, can communicate by letter with SIM card with the UIM card respectively.
S300, start back main control module 201 control CDMA module 202 earlier obtain PRL information and this machine of backuping to the UIM cartoon letters.
In the start process, because portable terminal is initial and cdma network and GSM network all do not connect, therefore, can parallel search cdma network and GSM network, wherein, search CDMA carries out according to the PRL information of this machine backup, and search GSM carries out according to the networking rule in the current SIM card:
S301, main control module 201 control CDMA modules 202 and gsm module 203 are searched for cdma network and GSM network respectively.
Detailed process can begin to search for cdma network according to the PRL backup information that obtains from UIM for, CDMA module 202.Main control module 201 is communicated by letter control gsm module 203 again with SIM card, carry out the search of GSM network.
S302, if in the setting-up time section (such as 1 minute, art technology people can be provided with this setting-up time section according to actual conditions) gsm module 203 searches the GSM net, and CDMA module 202 does not also search CDMA net (promptly searching the GSM net earlier), then execution in step S303 at this moment; If in the setting-up time section, search CDMA net, then execution in step S307 earlier; If do not search GSM net and CDMA net in the setting-up time section, then repeating step S301 continues search GSM net and CDMA net.
S303, gsm module 203 are set up and being connected that GSM nets.
Be specially, gsm module 203 initiates to register at the GSM network, sets up and being connected that GSM nets.
S304, gsm module 203 set up with being connected of GSM net after, search the CDMA net as if CDMA module 202 in the setting-up time section, then execution in step S305; If in the setting-up time section, do not search CDMA net, then execution in step S306.
In specific implementation process, situation for fear of " table tennis switches " takes place, can be after searching the CDMA net, the signal strength signal intensity of judgement (such as 1 minute) CDMA in a period of time that continues greater than set point (such as the full lattice intensity of signal 2/5ths), decision switches to CDMA net, i.e. execution in step S305 again.
S305, main control module 201 control gsm modules 203 disconnect with GSM net be connected after, execution in step S307.
Because the network selection strategy is preferentially to select cdma network, therefore, in case search cdma network, then decision connects with cdma network, and therefore, 203 disconnections of main control module 201 control gsm modules are connected with the GSM net.Impact for fear of the current operation (as conversation, online etc.) to the user, can be in the free time during (IDLE) state at portable terminal, control gsm module 203 disconnects and being connected of GSM net, and realizes the switching that the GSM net is netted to CDMA.
S306, main control module 201 control CDMA modules 202 periodic search CDMA nets; If search then execution in step S305 of CDMA net; Otherwise continue periodic search CDMA net.
During the GSM standby, time interval those skilled in the art of periodic search CDMA net can set according to actual conditions, such as weighing between switching in time expending standby current and network, a comparatively suitable value (such as setting 15 minutes) are set.
S307, CDMA module 202 are set up and being connected that CDMA nets.
S308, CDMA module 202 set up with CDMA net be connected after, if cause portable terminal to lose the CDMA net for a certain reason, then main control module 201 control gsm modules 203 are communicated by letter with SIM card, directly switching current standby network is GSM network (gsm module 203 promptly is set is in holding state), and jump to step S301, repeat the network process of searching of CDMA net and GSM net.
In fact,, can jump to step S301, repeat the network process of searching of CDMA net and GSM net no matter be CDMA lost network or GSM lost network.
Portable terminal is for the judgement of lost network, can be in certain hour (those skilled in the art can set according to actual conditions), the network signal (such as the cdma network signal) that receives continues less than certain set point (those skilled in the art can set according to actual conditions), then thinks lost network (promptly can not carry out proper communication with network).For example, the Rule of judgment of " lost network " can become according to the network requirement of different operators, can be that signal is to surpass duration of 0 limit value to be judged to lost network, also can be that some network data is judged to lost network above limit value, even also can be that basic mobile telephone power consumption must not surpass operator's limit value as decision condition.For CDMA, GSM network lost network decision plan also can be different: such as for preferential cdma network, the condition of then declaring its lost network is looser, and it is longer to can be used to time of searching for again until catching network.
Though it will be understood by those skilled in the art that in the above-mentioned explanation, for ease of understanding, the step of method has been adopted the succession description, should be pointed out that for the order of above-mentioned steps and do not do strict the restriction.
The double-mode single-standby mobile terminal of the embodiment of the invention is because when the standby of GSM network, periodic search
Cdma network then switches to cdma network when searching cdma network, thereby realizes moving
Terminal is adaptively selected according to the network condition of reality, handover network.
When mobile terminal-opening, mobile terminal parallel carries out the search of cdma network and GSM network, can search available network as early as possible.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
Will also be appreciated that the apparatus structure shown in accompanying drawing or the embodiment only is schematically, the presentation logic structure.Wherein the module that shows as separating component may or may not be physically to separate, and the parts that show as module may be or may not be physical modules, both can be positioned at a place, also can be distributed on several network element.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of double-mode single-standby mobile terminal is characterized in that in method for switching among heterogeneous networks, comprising:
When the standby network of described portable terminal is first network, periodic search second network;
If search described second network, described portable terminal disconnection is connected with described first network, and foundation is connected with described second network; Described second network is the preferred standby network of described portable terminal.
2, the method for claim 1 is characterized in that, described portable terminal set up with being connected of described second network after, also comprise:
If described portable terminal judges the described second network lost network, then with described first network as standby network, and search for described first network and second network;
If described portable terminal searches described second network in the setting-up time section, then set up and being connected of described second network; Search described first network and do not search described second network if surpass described setting-up time section, then set up and being connected of described first network.
3, the method for claim 1 is characterized in that, with first network as standby network before, also comprise:
During described mobile terminal-opening, search for described first network and second network;
If described portable terminal searches described second network in the setting-up time section, then set up and being connected of described second network; Search described first network and do not search described second network if surpass described setting-up time section, then set up and being connected of described first network.
4, as claim 2 or 3 described methods, it is characterized in that, described portable terminal searches described second network in the setting-up time section before, also comprise:
If described portable terminal searches described first network in described setting-up time section, then connect with described first network; And
Described portable terminal setting up with being connected of described second network before, also comprise: disconnection is connected with described first network.
5, method as claimed in claim 3 is characterized in that, described first network is the GSM network, and described second network is a cdma network; And
Behind the described mobile terminal-opening, search for described first network and second network, specifically comprise:
During described mobile terminal-opening, obtain PRL information and backup at this machine, begin the search of described cdma network according to the PRL information that obtains then from the UIM card;
Described portable terminal is communicated by letter with SIM card after obtaining described PRL information, and begins the search of described GSM network according to the rule of the web search in the described SIM card.
6, a kind of double-mode single-standby mobile terminal comprises:
First mixed-media network modules mixed-media, be used to search for first network and with described first network service;
Second mixed-media network modules mixed-media, be used to search for second network and with described second network service;
Main control module is used for regularly controlling described second mixed-media network modules mixed-media and searching for described second network by the described first mixed-media network modules mixed-media standby process; If search described second network, then control described first mixed-media network modules mixed-media and disconnect and being connected of described first network, control being connected of described second mixed-media network modules mixed-media foundation and described second network; Described second network is the preferred standby network of described portable terminal.
7, terminal as claimed in claim 6 is characterized in that,
Described main control module also is used for behind the described second mixed-media network modules mixed-media lost network: control described first mixed-media network modules mixed-media and second mixed-media network modules mixed-media and search for first network and second network respectively; If described second mixed-media network modules mixed-media searches second network in the setting-up time section, then described master control module controls second mixed-media network modules mixed-media foundation is connected with described second network; If surpass described setting-up time section, described second mixed-media network modules mixed-media does not search second network, and then main control module is provided with described first mixed-media network modules mixed-media and is in holding state.
8, terminal as claimed in claim 6 is characterized in that,
Described main control module also is used for behind described mobile terminal-opening: control described first mixed-media network modules mixed-media and second mixed-media network modules mixed-media and search for first network and second network respectively; If described second mixed-media network modules mixed-media searches second network in the setting-up time section, then described master control module controls second mixed-media network modules mixed-media foundation is connected with described second network; If surpass described setting-up time section, described second mixed-media network modules mixed-media does not search second network, and then main control module is provided with first mixed-media network modules mixed-media and is in holding state.
9, as claim 7 or 8 described terminals, it is characterized in that,
Described main control module also is used for if surpass described setting-up time section, described second mixed-media network modules mixed-media does not search second network, described first mixed-media network modules mixed-media searches described first network, and then described master control module controls first mixed-media network modules mixed-media foundation is connected with described first network.
10, as claim 7 or 8 described terminals, it is characterized in that,
Described main control module also is used in described setting-up time section if described first mixed-media network modules mixed-media searches described first network earlier, then controls described first mixed-media network modules mixed-media and described first network connects; And after searching described second network, control described first mixed-media network modules mixed-media and disconnect and being connected of described first network, control being connected of described second mixed-media network modules mixed-media foundation and described second network.
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| CN105959986A (en) * | 2016-04-29 | 2016-09-21 | 大连楼兰科技股份有限公司 | Mobile terminal network switching method and system under data service state |
| CN105959986B (en) * | 2016-04-29 | 2020-03-24 | 大连楼兰科技股份有限公司 | Method and system for switching network of mobile terminal in data service state |
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