CN102271375A - Network switching method and device - Google Patents
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- CN102271375A CN102271375A CN2010101964595A CN201010196459A CN102271375A CN 102271375 A CN102271375 A CN 102271375A CN 2010101964595 A CN2010101964595 A CN 2010101964595A CN 201010196459 A CN201010196459 A CN 201010196459A CN 102271375 A CN102271375 A CN 102271375A
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Abstract
The invention provides a network switching method. The network switching method comprises the following steps of: A, collecting a 3G (3rd-Generation) network signal and a WLAN (Wireless Local Area Network) signal, respectively, and getting congestion level information of the 3G network and the WLAN network and current connection state information of terminals, respectively; B, determining whether network switch is needed according to a collection result, the congestion level information and the current connection state information of the terminals, if so, executing a switch operation, if not, executing no switch operation; and C, after a preset time length, repeating the step A. The invention further discloses a network switching device. By using the method and the device disclosed by the invention, the use of a user is facilitated and the best network can be provided for the user.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of method for switching network and device.
Background technology
Along with deepening continuously and 3G (Third Generation) Moblie (3G of industrial application of information technology process, 3rd-Generation) network, as Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) network and Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access) the formal use of network, wireless Internet access speed has had significantly raising than traditional 2G network, gives and uses the user of wireless network to bring very big convenience.
In order to further facilitate the user, in the place that some urban district crowds relatively concentrate, also set up WLAN (wireless local area network) (WLAN, Wireless Local Area Networks), to alleviate 3G network does not reach ideal velocity in the area that the crowd concentrates drawback.
3G network is compared with wlan network, its pluses and minuses are respectively arranged, such as: for 3G network, its coverage is bigger, and it is suitable certainly with the 2G network, but rate are too high, and network speed is slower, and wlan network then rate is lower, and network speed is very fast, but coverage is too small, is subjected to many-sided restrictions such as through-put power, can only cover limited zone; In addition, the quality of signal quality also can have influence on network speed.Make full use of the mutual supplement with each other's advantages of 3G network and wlan network, will bring huge benefits to the network investment and the operation of operator.
In actual applications, can between heterogeneous networks, switch as required, as between above-mentioned 3G network and wlan network, switching.In the prior art, acquiescence all is to use 3G network usually, if the user wants to reduce rate, can be manually switched to wlan network by a series of setting so, if after having switched a period of time, the user feels that the signal quality of wlan network is bad, but so also 3G network is returned in manual switchover.As can be seen, in the existing switching mode, the user need manually finish switching, and, the user need with oneself feel determine whether and need switch that system can't finish voluntarily according to signal quality etc. to be switched or the guiding user finishes switching, these have brought very big inconvenience all for user's use, and user's sensation may be inaccurate, thereby cause switching improper, promptly can not use the optimum network of comprehensive each side.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method for switching network, can be user-friendly to, and the network of optimum can be offered the user.
Another object of the present invention is to provide a kind of network switching device shifter, can be user-friendly to, and the network of optimum can be offered the user.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method for switching network comprises:
A, gather 3G (Third Generation) Moblie 3G network signal and WLAN (wireless local area network) WLAN signal respectively; And obtain the Congestion Level SPCC information of 3G network and wlan network and the connection state information of terminal respectively;
B, determine whether that according to the connection state information of collection result, Congestion Level SPCC information and terminal needs carry out network and switch, if, then carry out handover operation, otherwise, handover operation do not carried out;
After C, the process scheduled duration, repeated execution of steps A.
Described step B comprises:
B1, determine whether to collect the wlan network signal, if, execution in step B2 then, otherwise, execution in step B4;
Whether B2, the signal quality of determining wlan network and Congestion Level SPCC meet the requirements, if, execution in step B3 then, otherwise, execution in step B4;
B3, determine whether terminal has been connected to wlan network, if, then do not carry out handover operation, otherwise, switch to wlan network;
B4, determine whether to collect the 3G network signal, if, execution in step B5 then, otherwise, handover operation do not carried out;
Whether B5, the signal quality of determining 3G network and Congestion Level SPCC meet the requirements, if meet, and execution in step B6 then, otherwise, execution in step B7;
B6, determine whether terminal has been connected to 3G network, if, then do not carry out handover operation, otherwise, switch to 3G network;
B7, determine whether terminal has been connected to the 2G network, if, then do not carry out handover operation, otherwise, switch to the 2G network.
Whether the signal quality of described definite wlan network meets the requirements comprises:
Continuous acquisition M wlan network signal formed one group with every continuous T signal wherein, and described M is the positive integer greater than 2, and described T is the positive integer greater than 1, and described M is greater than T; Calculate the mean value of every group of signal, and the mean value of every group of signal compared with the first threshold that sets in advance respectively, assembly average is counted P greater than the group of described first threshold, determine that whether described P is more than or equal to second threshold value that sets in advance, if, the signal quality of then determining wlan network meets the requirements, otherwise, determine undesirable;
Whether the signal quality of described definite 3G network meets the requirements comprises:
Continuous acquisition M 3G network signal formed one group with every continuous T signal wherein, and described M is the positive integer greater than 2, and described T is the positive integer greater than 1, and described M is greater than T; Calculate the mean value of every group of signal, the mean value of every group of signal is compared with the first threshold that sets in advance respectively, assembly average is counted P greater than the group of described first threshold, and determine that whether described P is more than or equal to second threshold value that sets in advance, if, the signal quality of then determining 3G network meets the requirements, otherwise, determine undesirable.
The described Congestion Level SPCC information of obtaining 3G network and wlan network respectively comprises: detect the PING value of 3G network and wlan network respectively, with detected PING value as Congestion Level SPCC information;
Whether the Congestion Level SPCC of described definite wlan network meets the requirements comprises: the PING value and the 3rd threshold value that sets in advance of detected wlan network are compared, if described PING value is less than described the 3rd threshold value, the Congestion Level SPCC of then determining wlan network meets the requirements, otherwise, determine undesirable;
Whether the Congestion Level SPCC of described definite 3G network meets the requirements comprises: the PING value and the 3rd threshold value that sets in advance of detected 3G network are compared, if described PING value is less than described the 3rd threshold value, the Congestion Level SPCC of then determining 3G network meets the requirements, otherwise, determine undesirable.
Before the described execution handover operation, further comprise: whether the prompting user needs to switch, and when receiving user's affirmation instruction, carries out handover operation.
Described 3G network is time-division synchronous code division multiple access TD-SCDMA network or Wideband Code Division Multiple Access (WCDMA) WCDMA network.
A kind of network switching device shifter comprises: 3G (Third Generation) Moblie 3G network detection module, WLAN (wireless local area network) wlan network detection module, network switch arbitration modules and network operation module;
Described 3G network detection module is used for continuous acquisition 3G network signal, and the signal that collects is preserved;
Described wlan network detection module is used for continuous acquisition wlan network signal, and the signal that collects is preserved;
Described network switches arbitration modules, is used for periodically to described 3G network detection module and wlan network detection module request collection result, and obtains the Congestion Level SPCC information and the current connection state information of terminal of 3G network and wlan network respectively; Determine whether that according to collection result, Congestion Level SPCC information and the current connection state information of terminal needs carry out network and switch, if, then notify described network operation module to carry out handover operation, otherwise, do not deal with;
Described network operation module is used to carry out handover operation.
Described network switches arbitration modules and is further used for, and when determining that need carry out network switches, whether the prompting user needs to switch, and when receiving user's affirmation instruction, notifies described network operation module to carry out handover operation.
Described network switches arbitration modules and comprises: request unit, first processing unit and second processing unit; Described network operation module comprises: 3G network operating unit, wlan network operating unit and 2G network operation unit;
The described request unit is used for periodically to described 3G network detection module and wlan network detection module request collection result, and receives the collection result that it returns, and sends to described first processing unit and second processing unit;
Described first processing unit, be used to determine whether to receive the WLAN signal, if do not receive, then notify described second processing unit to carry out self function, if receive, whether signal quality and the Congestion Level SPCC of then further determining wlan network meet the requirements, if do not meet, then notify described second processing unit to carry out self function,, determine further then whether terminal has been connected to wlan network if meet, if connect, then do not deal with,, then notify described wlan network operating unit to carry out self function if do not connect;
Described second processing unit, be used to determine whether to receive the 3G network signal, if do not receive, then do not deal with,, determine further then whether the signal quality and the Congestion Level SPCC of 3G network meets the requirements if receive, if do not meet, determine further then whether terminal has been connected to the 2G network, if connect, does not then deal with, if do not connect, then notify described 2G network operation unit to carry out self function,, determine further then whether terminal has been connected to 3G network if meet, if connect, then do not deal with,, then notify described 3G network operating unit to carry out self function if do not connect;
Described 3G network operating unit, the network that is used for that terminal is connected switches to 3G network;
Described wlan network operating unit, the network that is used for that terminal is connected switches to wlan network;
Described 2G network operation unit, the network that is used for that terminal is connected switches to the 2G network.
Described 3G network is time-division synchronous code division multiple access TD-SCDMA network or Wideband Code Division Multiple Access (WCDMA) WCDMA network.
As seen, adopt technical scheme of the present invention, according to the signal quality of network and Congestion Level SPCC etc., automatically carrying out network switches, or the guiding user finishes switching, compared with prior art, scheme of the present invention need not the user and manually finishes whole handoff procedure, reduced user's operation, thus convenient for users, and, scheme of the present invention can accurately find optimum network, thereby can be better for the user provide service, as the networking speed that promotes the user with reduce rate etc., thereby greatly promoted user's perceptibility.
Description of drawings
Fig. 1 is the flow chart of method for switching network embodiment of the present invention.
Fig. 2 is the specific implementation process schematic diagram of the inventive method embodiment step 12.
Fig. 3 is the packet mode schematic diagram of 10 signals of the present invention.
Fig. 4 is the mean value schematic diagram of each grouping shown in Figure 3.
Fig. 5 is the composition structural representation of network switching device shifter embodiment of the present invention.
Embodiment
At problems of the prior art, a kind of brand-new network handover scheme is proposed among the present invention, can be user-friendly to, and the network of optimum can be offered the user.
For make technical scheme of the present invention clearer, understand, below with reference to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
Fig. 1 is the flow chart of method for switching network embodiment of the present invention.As shown in Figure 1, may further comprise the steps:
Step 11: gather 3G network signal and wlan network signal respectively, and obtain the Congestion Level SPCC information of 3G network and wlan network and the connection state information of terminal respectively.
Suppose that the terminal in the present embodiment is personal computer (PC, a Personal Computer) terminal.In the present embodiment, the WLAN module and the 3G card of surfing Internet of PC terminal organically combined, realize that the intelligent network of PC terminal switches.
In this step, gather 3G network signal and wlan network signal at first respectively, specifically, send sense command by driver to corresponding acquisition module, make it begin to gather 3G network signal and wlan network signal, need to prove, in actual applications, might be able to collect 3G network signal and wlan network signal, might gather less than.Such as, if do not have wlan network in the current region of terminal, only there are 3G network and 2G network, so then gather less than the wlan network signal.
In addition, the signal that collects can be preserved, and can further give the user with the form of figure by the screen display of PC terminal the signal that collects.Suppose to have collected simultaneously 3G network signal and wlan network signal, can in coordinate system, draw out nearest 3G network signal and the wlan network signal that collects for M time so respectively, demonstrate the 3G network signal and whether the wlan network signal is stable with the form of curve intuitively, so that allow the user that the situation of 3G network and wlan network is had gained some understanding.The user can manually finish switching by existing mode according to situation about recognizing if desired.
After gathering 3G network signal and wlan network signal, also need to obtain respectively the Congestion Level SPCC information and the current connection state information of terminal of 3G network and wlan network.
In the present embodiment, detect the PING value of 3G network and wlan network respectively, with detected PING value as Congestion Level SPCC information, such as, adopt the method for PING network, detect the PING value of a fixing website on the network, with this PING value as Congestion Level SPCC information, in addition, in order to make testing result more accurate, also can detect a plurality of PING values, calculate the mean value of these a plurality of PING values then, with the mean value that calculates as Congestion Level SPCC information.How detecting the PING value is prior art, repeats no more.
The connection state information of terminal is meant that terminal has been connected to information such as which network.The connection state information that how to obtain terminal is a prior art, repeats no more.Equally, the PING value and the current connection state information of terminal of detected 3G network and wlan network can be shown to the user.
Step 12: determine whether that according to collection result, Congestion Level SPCC information and the current connection state information of terminal needs carry out network and switch, if, then carry out handover operation, otherwise, handover operation do not carried out.
In the present embodiment, determine whether to carry out network and switch the following factor of main reference: the Congestion Level SPCC of the connection state information of terminal, the signal quality of 3G network, 3G network, the signal quality of wlan network, and the Congestion Level SPCC of wlan network.
It is as follows to determine whether to carry out the principle that network switches: if the signal quality of 3G network and wlan network and Congestion Level SPCC all meet the requirements, and very fast and lower characteristics of rate then, preferred wlan network according to the wlan network network speed; If the signal quality of 3G network and Congestion Level SPCC all meet the requirements, and have at least in the signal quality of wlan network and the Congestion Level SPCC one undesirable, then preferred 3G network; If the signal quality of wlan network and Congestion Level SPCC all meet the requirements, and have at least in the signal quality of 3G network and the Congestion Level SPCC one undesirable, then preferred wlan network; If have at least in the signal quality of 3G network and the Congestion Level SPCC one undesirable, and also have at least in the signal quality of wlan network and the Congestion Level SPCC one undesirable, then preferred 2G network.
Preferred network is the network that will switch to, in actual applications, the network that might terminal be connected to is preferred network, then need not in this case to switch, therefore whether before switching, needing to determine the current network that connects of terminal according to the connection state information of terminal earlier is the network that will switch to.
Fig. 2 is the specific implementation process schematic diagram of the inventive method embodiment step 12.As shown in Figure 2, may further comprise the steps:
Step 21: determine whether to collect the wlan network signal, if can, then execution in step 22, otherwise, execution in step 24.
Step 22: determine whether the signal quality of wlan network and Congestion Level SPCC meet the requirements, if then execution in step 23, otherwise, execution in step 24.
In actual applications, run into the situation of network fluctuation through regular meeting, bad when being the signal quality fashion of network, in order to prevent that carrying out network continually switches, in the present embodiment, determine in such a way whether the signal quality of wlan network meets the requirements: continuous acquisition M wlan network signal, every continuous T signal is wherein formed one group, M is the positive integer greater than 2, and T is the positive integer greater than 1, and M is greater than T; Calculate the mean value of every group of signal, and the mean value of every group of signal compared with the first threshold that sets in advance respectively, assembly average is counted P greater than the group of first threshold, determine that whether P is more than or equal to second threshold value that sets in advance, if, the signal quality of then determining wlan network meets the requirements, otherwise, determine undesirable.
Illustrate: suppose to have gathered altogether 10 wlan network signals, number consecutively be signal 1, signal 2 ..., signal 10, every continuous 5 signals are wherein formed one group, as shown in Figure 3, Fig. 3 is the packet mode schematic diagram of 10 signals of the present invention; Be that signal 1～5 is formed one group, signal 2～6 is formed one group, and signal 3～7 is formed one group, and signal 4～8 is formed one group, and signal 5～9 is formed one group, and signal 6～10 is formed one group, totally 6 groups; Calculate respectively these 6 groups of signals mean value M1, M2 ..., M6, as shown in Figure 4, Fig. 4 is the mean value of each grouping shown in Figure 3; M1～M6 is compared with first threshold respectively, if greater than the mean value number of first threshold more than or equal to 4, determine that then the signal quality of wlan network meets the requirements.In addition, also can further calculate the mean value of 6 mean values,, be shown to the user its signal strength signal intensity as wlan network.
In addition, the Congestion Level SPCC of determining wlan network whether satisfactory mode can for: the PING value and the 3rd threshold value that sets in advance of detected wlan network are compared, if described PING value is less than the 3rd threshold value, the Congestion Level SPCC of then determining wlan network meets the requirements, otherwise, determine undesirable.
The concrete value of above-mentioned M, T, first threshold, second threshold value and the 3rd threshold value etc. all can be decided according to the actual requirements.Wherein, the first threshold and second threshold value are to determine the foundation of signal quality quality, and the value of first threshold is set to-70dbm usually; The 3rd threshold value is to be used to weigh the network refresh rate, the time scalar of indirection table existing network network Congestion Level SPCC, and value is the smaller the better, is set to 400ms usually.
Step 23: determine whether terminal has been connected to wlan network, if, then do not carry out handover operation, process ends, otherwise, execution in step 23 '.
Step 23 ': switch to wlan network, process ends.
If terminal has been connected to wlan network, need not so to switch again, if be not connected to wlan network, then switch to wlan network.
In handoff procedure, can on screen, point out the user carrying out wlan network and connect, after the to be switched success, (as the lower right of taskbar) shows successful connection on screen, and shows that the network of current connection is a wlan network.
In addition, after switching to wlan network, also can carry out authentication to the user, be about to before the user, user account of inputing during such as login system and password etc. send to mobile service end by webpage, finish authentication by mobile service end, have only authentication success, just allow the user to use wlan network the user.Follow-up analogue repeats no more.
Step 24: determine whether to collect the 3G network signal, if then execution in step 25, otherwise, do not carry out handover operation, process ends.
If can not collect the 3G network signal, so integrating step 21 as can be known, the current PC terminal has only the 2G network in the region, so the PC terminal only may be connected to the 2G network, need not to carry out network and switches.
Step 25: determine whether the signal quality of 3G network and Congestion Level SPCC meet the requirements, if meet, then execution in step 26, otherwise, execution in step 27.
Whether the signal quality of the described definite 3G network of this step and Congestion Level SPCC are determined the signal quality of wlan network and Congestion Level SPCC in satisfactory mode and the step 22 whether satisfactory mode are similar, repeat no more.
Step 26: determine whether terminal has been connected to 3G network, if, then do not carry out handover operation, process ends, otherwise, execution in step 26 '.
Step 26 ': switch to 3G network, process ends.
Equally, in handoff procedure, can on screen, point out the user carrying out 3G network and connect, after the to be switched success, on screen, show successful connection, and show that the network of current connection is a 3G network.
Step 27: determine whether terminal has been connected to the 2G network, if, then do not carry out handover operation, process ends, otherwise, execution in step 27 '.
Step 27 ': switch to the 2G network, process ends.
Equally, in handoff procedure, can on screen, point out the user carrying out the 2G network and connect, after the to be switched success, on screen, show successful connection, and show that the network of current connection is the 2G network.
So far, promptly finished introduction about the inventive method embodiment.Follow-up, through after the scheduled duration, repeated execution of steps 11 and 12 gets final product, and the concrete value of described scheduled duration can be decided according to the actual requirements.
In addition, embodiment illustrated in fig. 1 in, finish switching automatically by system, need not the user participates in, in actual applications, also can be before switching at every turn, whether the prompting user needs to switch earlier, promptly on screen, show an information, the user can select is not or not, if to select be then to carry out handover operation to the user, if the user selects then not carry out handover operation.Whether in addition, the user can also be by system's setting, and directly regulation does not allow to switch, and so, follow-uply neither can switch automatically, also can not point out the user to need to switch.
Based on said method, Fig. 5 is the composition structural representation of network switching device shifter embodiment of the present invention.As shown in Figure 5, comprising: 3G network detection module 51, wlan network detection module 52, network switch arbitration modules 53 and network operation module 54;
3G network detection module 51 is used for continuous acquisition 3G network signal (after the device startup shown in Figure 5, can begin to gather), and the signal that collects is preserved;
Wlan network detection module 52 is used for continuous acquisition wlan network signal (after the device startup shown in Figure 5, can begin to gather), and the signal that collects is preserved;
Network switches arbitration modules 53, is used for periodically asking collection result to 3G network detection module 51 and wlan network detection module 52, and obtains the Congestion Level SPCC information and the current connection state information of terminal of 3G network and wlan network respectively; Determine whether that according to collection result, Congestion Level SPCC information and the current connection state information of terminal needs carry out network and switch, if then informing network operational module 54 is carried out handover operation, otherwise, do not deal with;
With 3G network detection module 51 is example, if it can not collect the 3G network signal, its collection result that returns to network switching arbitration modules 53 will be sky so, if can collect the 3G network signal, then the signal that collects for nearest M time can be returned to network as collection result and switch arbitration modules 53.
Wherein, network switches arbitration modules 53 and can be further used for, and when determining that need carry out network switches, whether the prompting user needs to switch, and when receiving user's affirmation instruction, informing network operational module 54 is carried out handover operation.
In addition, can specifically comprise (, not shown) in the network switching arbitration modules 53: request unit, first processing unit and second processing unit for simplifying accompanying drawing; Can specifically comprise (, not shown) in the network operation module 54: 3G network operating unit, wlan network operating unit and 2G network operation unit for simplifying accompanying drawing;
Request unit is used for periodically asking collection result to 3G network detection module 51 and wlan network detection module 52, and receives the collection result that it returns, and sends to first processing unit and second processing unit;
First processing unit, be used to determine whether to receive the WLAN signal, if do not receive, then notify second processing unit to carry out self function, if receive, whether signal quality and the Congestion Level SPCC of then further determining wlan network meet the requirements, if do not meet, then notify second processing unit to carry out self function,, determine further then whether terminal has been connected to wlan network if meet, if connect, then do not deal with,, then notify the wlan network operating unit to carry out self function if do not connect;
Second processing unit, be used to determine whether to receive the 3G network signal, if do not receive, then do not deal with,, determine further then whether the signal quality and the Congestion Level SPCC of 3G network meets the requirements if receive, if do not meet, determine further then whether terminal has been connected to the 2G network, if connect, does not then deal with, if do not connect, then notify 2G network operation unit to carry out self function,, determine further then whether terminal has been connected to 3G network if meet, if connect, then do not deal with,, then notify the 3G network operating unit to carry out self function if do not connect;
The 3G network operating unit, the network that is used for that terminal is connected switches to 3G network;
The wlan network operating unit, the network that is used for that terminal is connected switches to wlan network;
2G network operation unit, the network that is used for that terminal is connected switches to the 2G network.
Above-mentioned 3G network can be TD-SCDMA network or WCDMA network etc.
In addition, in actual applications, 3G network detection module 51 shown in Figure 5, wlan network detection module 52 and network switch arbitration modules 53 will be connected to user interface, i.e. the screen of PC terminal is so that be shown to the user with relevant information and receive the information of user's input; Network operation module 54 is connected to the operating system and the hardware device of PC terminal, finishes switching by control operation system and hardware device.
The concrete workflow of device embodiment shown in Figure 5 please refer to the respective description among the method embodiment shown in Figure 1, repeats no more herein.
In a word, adopt technical scheme of the present invention, according to the signal quality of network and Congestion Level SPCC etc., automatically carrying out network switches, or the guiding user finishes switching, compared with prior art, scheme of the present invention need not the user and manually finishes whole handoff procedure, reduced user's operation, thus convenient for users, and, scheme of the present invention can accurately find optimum network, thereby can be better for the user provide service, as the networking speed that promotes the user with reduce rate etc., thereby greatly promoted user's perceptibility.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a method for switching network is characterized in that, this method comprises:
A, gather 3G (Third Generation) Moblie 3G network signal and WLAN (wireless local area network) WLAN signal respectively; And obtain the Congestion Level SPCC information of 3G network and wlan network and the connection state information of terminal respectively;
B, determine whether that according to the connection state information of collection result, Congestion Level SPCC information and terminal needs carry out network and switch, if, then carry out handover operation, otherwise, handover operation do not carried out;
After C, the process scheduled duration, repeated execution of steps A.
2. method according to claim 1 is characterized in that, described step B comprises:
B 1, determine whether to collect the wlan network signal, if, execution in step B2 then, otherwise, execution in step B4;
Whether B2, the signal quality of determining wlan network and Congestion Level SPCC meet the requirements, if, execution in step B3 then, otherwise, execution in step B4;
B3, determine whether terminal has been connected to wlan network, if, then do not carry out handover operation, otherwise, switch to wlan network;
B4, determine whether to collect the 3G network signal, if, execution in step B5 then, otherwise, handover operation do not carried out;
Whether B5, the signal quality of determining 3G network and Congestion Level SPCC meet the requirements, if meet, and execution in step B6 then, otherwise, execution in step B7;
B6, determine whether terminal has been connected to 3G network, if, then do not carry out handover operation, otherwise, switch to 3G network;
B7, determine whether terminal has been connected to the 2G network, if, then do not carry out handover operation, otherwise, switch to the 2G network.
3. method according to claim 2 is characterized in that, whether the signal quality of described definite wlan network meets the requirements comprises:
Continuous acquisition M wlan network signal formed one group with every continuous T signal wherein, and described M is the positive integer greater than 2, and described T is the positive integer greater than 1, and M is greater than T; Calculate the mean value of every group of signal, and the mean value of every group of signal compared with the first threshold that sets in advance respectively, assembly average is counted P greater than the group of described first threshold, determine that whether described P is more than or equal to second threshold value that sets in advance, if, the signal quality of then determining wlan network meets the requirements, otherwise, determine undesirable;
Whether the signal quality of described definite 3G network meets the requirements comprises:
Continuous acquisition M 3G network signal formed one group with every continuous T signal wherein, and described M is the positive integer greater than 2, and described T is the positive integer greater than 1, and M is greater than T; Calculate the mean value of every group of signal, the mean value of every group of signal is compared with the first threshold that sets in advance respectively, assembly average is counted P greater than the group of described first threshold, and determine that whether described P is more than or equal to second threshold value that sets in advance, if, the signal quality of then determining 3G network meets the requirements, otherwise, determine undesirable.
4. method according to claim 2 is characterized in that, the described Congestion Level SPCC information of obtaining 3G network and wlan network respectively comprises: detect the PING value of 3G network and wlan network respectively, with detected PING value as Congestion Level SPCC information;
Whether the Congestion Level SPCC of described definite wlan network meets the requirements comprises: the PING value and the 3rd threshold value that sets in advance of detected wlan network are compared, if described PING value is less than described the 3rd threshold value, the Congestion Level SPCC of then determining wlan network meets the requirements, otherwise, determine undesirable;
Whether the Congestion Level SPCC of described definite 3G network meets the requirements comprises: the PING value and the 3rd threshold value that sets in advance of detected 3G network are compared, if described PING value is less than described the 3rd threshold value, the Congestion Level SPCC of then determining 3G network meets the requirements, otherwise, determine undesirable.
5. method according to claim 1 is characterized in that, before the described execution handover operation, further comprises: whether the prompting user needs to switch, and when receiving user's affirmation instruction, carries out handover operation.
6. according to each described method in the claim 1～5, it is characterized in that described 3G network is time-division synchronous code division multiple access TD-SCDMA network or Wideband Code Division Multiple Access (WCDMA) WCDMA network.
7. a network switching device shifter is characterized in that, comprising: 3G (Third Generation) Moblie 3G network detection module, WLAN (wireless local area network) wlan network detection module, network switch arbitration modules and network operation module;
Described 3G network detection module is used for continuous acquisition 3G network signal, and the signal that collects is preserved;
Described wlan network detection module is used for continuous acquisition wlan network signal, and the signal that collects is preserved;
Described network switches arbitration modules, is used for periodically to described 3G network detection module and wlan network detection module request collection result, and obtains the Congestion Level SPCC information and the current connection state information of terminal of 3G network and wlan network respectively; Determine whether that according to collection result, Congestion Level SPCC information and the current connection state information of terminal needs carry out network and switch, if, then notify described network operation module to carry out handover operation, otherwise, do not deal with;
Described network operation module is used to carry out handover operation.
8. device according to claim 7, it is characterized in that, described network switches arbitration modules and is further used for, when determining that need carry out network switches, whether the prompting user needs to switch, and, notify described network operation module to carry out handover operation when receiving user's affirmation instruction.
9. device according to claim 7 is characterized in that, described network switches arbitration modules and comprises: request unit, first processing unit and second processing unit; Described network operation module comprises: 3G network operating unit, wlan network operating unit and 2G network operation unit;
The described request unit is used for periodically to described 3G network detection module and wlan network detection module request collection result, and receives the collection result that it returns, and sends to described first processing unit and second processing unit;
Described first processing unit, be used to determine whether to receive the WLAN signal, if do not receive, then notify described second processing unit to carry out self function, if receive, whether signal quality and the Congestion Level SPCC of then further determining wlan network meet the requirements, if do not meet, then notify described second processing unit to carry out self function,, determine further then whether terminal has been connected to wlan network if meet, if connect, then do not deal with,, then notify described wlan network operating unit to carry out self function if do not connect;
Described second processing unit, be used to determine whether to receive the 3G network signal, if do not receive, then do not deal with,, determine further then whether the signal quality and the Congestion Level SPCC of 3G network meets the requirements if receive, if do not meet, determine further then whether terminal has been connected to the 2G network, if connect, does not then deal with, if do not connect, then notify described 2G network operation unit to carry out self function,, determine further then whether terminal has been connected to 3G network if meet, if connect, then do not deal with,, then notify described 3G network operating unit to carry out self function if do not connect;
Described 3G network operating unit, the network that is used for that terminal is connected switches to 3G network;
Described wlan network operating unit, the network that is used for that terminal is connected switches to wlan network;
Described 2G network operation unit, the network that is used for that terminal is connected switches to the 2G network.
10. according to claim 7,8 or 9 described devices, it is characterized in that described 3G network is time-division synchronous code division multiple access TD-SCDMA network or Wideband Code Division Multiple Access (WCDMA) WCDMA network.
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| CN2010101964595A CN102271375A (en) | 2010-06-02 | 2010-06-02 | Network switching method and device |
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| CN2010101964595A CN102271375A (en) | 2010-06-02 | 2010-06-02 | Network switching method and device |
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Application publication date: 20111207 |