CN101888680A - Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device - Google Patents
Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device Download PDFInfo
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- CN101888680A CN101888680A CN2009100509650A CN200910050965A CN101888680A CN 101888680 A CN101888680 A CN 101888680A CN 2009100509650 A CN2009100509650 A CN 2009100509650A CN 200910050965 A CN200910050965 A CN 200910050965A CN 101888680 A CN101888680 A CN 101888680A
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Abstract
The invention discloses a method for reelecting/switching a 2G mode into a 3G mode and a dual-mode single-standby terminal device, and ensures that a dual-mode single-standby terminal working in the 2G mode without any configured 3G adjacent area can also be reelected and switched to the 3G mode, thereby reducing the power consumption of the terminal. The technical scheme is as follows: the method comprises the following steps: a dual-mode single-standby terminal works in the 2G mode without any configured 3G adjacent area, triggers the search of a 3G signal under the condition of meeting the set condition; the search process of the 3G adjacent area is carried out, once the fact that the signal strength of a certain frequency point is higher than the switch threshold of a corresponding frequency point is measured, the search is paused; the system information of the 3G adjacent area of the frequency point is read in advance, whether the 3G adjacent area meets the conditions for residing and registering is judged, and each frequency point corresponds to one switch threshold; if the 3G adjacent area meets the conditions, the reelection/switching of the 2G mode into the 3G mode is carried out, and otherwise, the measurement of the follow-up frequency points is continually carried out; and the corresponding switching threshold of the frequency point is adjusted according to the fact that whether the reelection/switching is successful. The invention is applied to the field of mobile communication.
Description
Technical field
The present invention relates to a kind of communication pattern gravity treatment/changing method, relate in particular to a kind of 2G to the method for 3G pattern gravity treatment/switching and the dual-mode single-standby terminal device of using this method.
Background technology
In order to realize seamlessly transitting of 2G and 3G, the dual-mode handset of supporting 3G and 2G standard simultaneously is an inevitable choice.Here be that example is described mainly with the TD-SCDMA/GSM/GPRS dual-mode terminal.
Existing TD-SCDMA/GSM/GPRS dual-mode terminal, taking increases a timer T1 in the Access Layer module of GSM/GPRS mould, increases a memory simultaneously and is used for depositing the threshold value Pt of TD sub-district.If do not contain the information of TD sub-district in the system message, the GSM mould will be opened a timer T1 so, have only in the time of timer expiry, and terminal just begins full frequency band search TD sub-district; If the signal strength signal intensity that the TD sub-district is arranged is greater than the threshold value Pt that sets, start the cell reselection process so, if TD sub-district gravity treatment success, so the Pt value in the threshold value memory is reduced by a unit, but the minimum Ptmin that is not less than, if the gravity treatment of TD sub-district is unsuccessful, so the Pt value in the threshold value memory is increased a unit, but be higher than Ptmax most.
The shortcoming that existing method exists has:
(1) the timer T1 that starts the TD test fixes, and just there are two problems in this: if one to be that T1 selects shorter, so in a single day overtimely will carry out full frequency band search, relatively power consumption at every turn; If T1 is provided with long, under the poor situation of current GSM signal, do not start timely and measure so, gravity treatment is not too timely.Another one is exactly the underaction of fixing that is provided with.
(2) be exactly that Client-initiated is professional can fail, and finishes up to this search by the time when full frequency band search 3G signal, user experience is bad.
(3) to the signal strength signal intensity of TD sub-district, all frequencies use unified thresholding, and adjust unified thresholding according to the gravity treatment result, and in fact the qualification of this thresholding is relatively coarse.Even because this frequency (more precisely being current this sub-district) gravity treatment success is also only represented in current current gravity treatment success, other frequency differs successful surely.
Summary of the invention
The objective of the invention is to address the above problem, a kind of 2G is provided the method to 3G pattern gravity treatment/switching, make operational mode be the double-mode single-standby terminal of automatic mode or only support the double-mode single-standby terminal that manual mode switches, be operated in the 2G pattern and do not dispose the also effectively gravity treatment of situation of 3G adjacent area/switch under the 3G pattern, and reduce the power consumption of terminal as much as possible.
Another object of the present invention has provided a kind of dual-mode single-standby terminal device from above-mentioned 2G to 3G pattern gravity treatment/switching that use.
Technical scheme of the present invention is: the present invention has disclosed the method for a kind of 2G to 3G pattern gravity treatment/switching, comprising:
(1) the double-mode single-standby terminal works triggers the search to the 3G signal in the 2G pattern and do not dispose the 3G adjacent area under the situation that satisfies the condition that is provided with;
(2) carry out search procedure to the 3G adjacent area, in case the signal strength signal intensity that measures certain frequency is during greater than the handoff threshold of corresponding frequency, temporarily stop search, the system message of the 3G adjacent area of this frequency is read in beginning in advance, judge whether this 3G adjacent area satisfies condition resident and registration, wherein the corresponding separately handoff threshold of each frequency;
(3) if satisfy condition, then carry out of the gravity treatment/switching of 2G pattern to the 3G pattern, if do not satisfy condition, then continue follow-up frequency is measured, adjust the handoff threshold of this frequency correspondence according to the success or not of gravity treatment/switching.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, wherein, in the step (1), be lower than the search that triggers when 2G signal strength threshold and double startup arrive the reselection interval of setting to time interval of 3G signal search the 3G signal in the signal strength signal intensity of current service cell.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, and wherein, in the step (1), the 2G signal strength threshold is a default.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, and wherein, in the step (1), the 2G signal strength threshold is that the user is provided with.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, wherein, and in the step (3), if gravity treatment/handover success then reduces unit of handoff threshold of this frequency correspondence; If gravity treatment/switching is unsuccessful, then increase unit of handoff threshold of this frequency correspondence, the thresholding of each frequency is controlled in the default scope.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, wherein, and the time period that must continue to preset to the measurement of frequency signal strength signal intensity in the step (2).
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, wherein, and the mode of carrying out twice measurement at regular intervals between in the step (2) measurement of frequency signal strength signal intensity being adopted.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, and wherein, the reselection interval in the step (1) is dynamically to adjust.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, wherein, if gravity treatment/handover success then reduces by a unit with reselection interval; If gravity treatment/handoff failure or judge according to the system message of the 3G adjacent area of this frequency that reads in advance and not satisfy signal strength signal intensity resident and registration condition or all frequencies and all be not more than corresponding handoff threshold, then with at least two units of reselection interval increase, this reselection interval is controlled in the pre-set interval all the time.
Above-mentioned 2G is to the method for 3G pattern gravity treatment/switching, and wherein, this 2G pattern comprises GSM/GPRS, CDMA, and this 3G pattern comprises TD-SCDMA, CDMA2000, WCDMA.
The present invention has also disclosed a kind of dual-mode single-standby terminal device, comprising:
Trigger module triggers the search to the 3G signal under the situation that satisfies the condition that is provided with;
Measurement module connects this trigger module, in the search procedure to the 3G sub-district, measures the signal strength signal intensity of the frequency of these 3G sub-districts one by one;
Comparison module, connect this measurement module, the signal strength signal intensity handoff threshold corresponding with this frequency of the current frequency that measures made comparisons, if the signal strength signal intensity of current frequency is greater than handoff threshold then start next module, otherwise return this measurement module and handle next frequency, wherein the corresponding separately handoff threshold of each frequency;
Judge module, connect this comparison module, draw at this comparison module under the result of signal strength signal intensity greater than handoff threshold of current frequency and start, temporarily stop search, the system message of the 3G sub-district of this frequency is read in beginning in advance, judges whether this 3G sub-district satisfies condition resident and registration;
Gravity treatment/handover module connects this judge module, draws under the result who satisfies resident and registration condition at this judge module to start, and carries out the gravity treatment/switching of 2G to the 3G pattern;
The handoff threshold adjusting module is adjusted the handoff threshold of this frequency correspondence according to the success or not of gravity treatment/switching.
Above-mentioned dual-mode single-standby terminal device, wherein, this device comprises a timer that connects this trigger module, this trigger module is lower than the search that triggers when 2G signal strength threshold and double startup arrive the reselection interval of setting to time interval of 3G signal search the 3G signal in the signal strength signal intensity of current service cell, and wherein reselection interval is set by timer.
Above-mentioned dual-mode single-standby terminal device, wherein, the 2G signal strength threshold in this trigger module is a default.
Above-mentioned dual-mode single-standby terminal device, wherein, the 2G signal strength threshold in this trigger module is that the user is provided with.
Above-mentioned dual-mode single-standby terminal device, wherein, this handoff threshold adjusting module reduces a unit with the handoff threshold of this frequency correspondence under this gravity treatment/handover module operation case of successful, the handoff threshold of operating under the unsuccessful situation this frequency correspondence at this gravity treatment/handover module increases a unit, and wherein the thresholding of each frequency is controlled in the default scope.
Above-mentioned dual-mode single-standby terminal device, wherein, this measurement module continues a default time period to the measurement of frequency signal strength signal intensity.
Above-mentioned dual-mode single-standby terminal device, wherein, the mode that this measurement module carries out twice measurement between the measurement of frequency signal strength signal intensity is adopted at regular intervals.
Above-mentioned dual-mode single-standby terminal device, wherein, reselection interval is dynamically adjusted by this timer.
Above-mentioned dual-mode single-standby terminal device wherein, if the result of this gravity treatment/handover module is success, is then controlled the reselection interval value of this timer, makes it reduce by a unit; If the result of this gravity treatment/handover module is failure, perhaps the result of this judge module is that condition resident and registration is not satisfied in this 3G sub-district, perhaps the signal strength signal intensity of all frequencies all is not more than corresponding handoff threshold in this comparison module, then control the reselection interval value of this timer, make it increase at least two units, the reselection interval value of this timer is controlled in the pre-set interval all the time.
Above-mentioned dual-mode single-standby terminal device, wherein, this 2G pattern comprises GSM/GPRS, CDMA, this 3G pattern comprises TD-SCDMA, CDMA2000, WCDMA.
The present invention contrasts prior art following beneficial effect: technical scheme of the present invention compared with prior art has following several characteristics: (1) network is not disposing under the situation of 3G adjacent area, and the intensity by judging current GSM signal also judges whether to need to start search to the 3G signal in conjunction with a reselection interval timer T that can dynamically adjust; (2) thresholding of gravity treatment is not to use a unified thresholding, but according to the frequency difference different thresholdings is set, and can dynamically adjust the thresholding of each frequency, does not influence each other; (3) can be under the 2G pattern reading section 3G system message in advance, reduce unnecessary switching.If satisfy gravity treatment in addition, under the 3G pattern, can directly use the system message that has read in advance under the 2G so; (4), once more this frequency is measured after temporarily stopping search during in the signal strength signal intensity that searches certain frequency, thought that just the signal strength signal intensity of this frequency is greater than the thresholding of correspondence if measure the thresholding that still satisfies this frequency for the second time greater than the thresholding of this frequency correspondence.This is for the signal moment shake that prevents to exist and cause and misread system message, because read apparatus message is time-consuming relatively and power consumption.The second time Search Results do not satisfy under the situation of threshold requirement, continue the follow-up frequency of search; (5) when 3G is searched for, all be the search of full frequency band not necessarily at every turn, as long as the sub-district of satisfying signal strength conditions is arranged, then suspend search and begin to understand system message, realize relatively power saving like this.In case, then need to stop current search if the user initiates business in search procedure, be limit priority with user's demand, strengthened user experience.In terms of existing technologies, adopt method and apparatus of the present invention, can be under the situation that network equipment does not need to adjust, as long as doing a spot of adjustment, end side software just can under the situation of 2G poor signal, in time initiate the gravity treatment of 2G to 3G, and improved gravity treatment efficient, also reduced the power consumption of bringing thus simultaneously as much as possible.
Description of drawings
Fig. 1 is the flow chart of 2G of the present invention to the embodiment of the method for 3G pattern gravity treatment/switching.
Fig. 2 is the schematic diagram of the embodiment of dual-mode single-standby terminal device of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The 2G pattern of indication comprises GSM, GPRS, CDMA etc. among the present invention, and the 3G pattern comprises TD-SCDMA, WCDMA, CDMA2000 etc.Adopting the present invention program's terminal installation can be the terminal installation of supporting TD-SCDMA and GSM/GRPS standard simultaneously, can certainly apply in the terminal installation of supporting WCDMA and GSM/GPRS standard.Following description is to be example with the dual-mode single-standby terminal device of supporting TD-SCDMA and GSM/GPRS standard.
2G is to the embodiment of the method for 3G pattern gravity treatment/switching
Fig. 1 shows the flow process of 2G of the present invention to the embodiment of the method for 3G pattern gravity treatment/switching.Seeing also Fig. 1, is the detailed description to each step among this method embodiment below.
Step S100: the double-mode single-standby terminal works is in the 2G pattern and do not dispose under the situation of 3G adjacent area, triggers gravity treatment/switching to the 3G pattern according to the condition that is provided with.
Gravity treatment/the handover operation of dual mode triggering to the 3G pattern can be arranged.First kind of mode is: the current GSM of residing in sub-district behind the starting up of terminal is in the adjacent area that does not dispose 3G in idle pulley and the system message.Storing an experience threshold value (being the GSM signal strength signal intensity of default) of overlapping the GSM signal of the startup 3G measurement of giving tacit consent to this moment in the double-mode single-standby terminal protocol stack begins to work.If the signal strength signal intensity of current GSM sub-district is less than a certain thresholding S
2GtAnd continue for some time the search that then starts 3G.
The second way is that the user starts the 3G search by layout setting when Serving cell GSM signal is reduced to which rank (such as the signal lattice number of corresponding interface display).Just when being lower than the thresholding that the user is provided with, the signal strength signal intensity of Serving cell starts the search of 3G sub-district.Here may appear at the search that always is not activated the 3G sub-district under the reasonable situation of 2G signal, this also is rational.Consider that from user perspective what the user was concerned about most is to enjoy the 3G service under the situation that the 3G service is arranged, rather than only be confined to current whether must standby under the 3G pattern.If current 2G signal is relatively good, do not trigger the search of 3G, suppose that this moment, the user wanted to use the distinctive business of 3G, so also can be by trigger search according to the Client-initiated business to the 3G signal.
Preferable, introduce the setting of timer T, timer T be used to be provided with terminal under idle (IDLE) pattern double startup to the value in the time interval of 3G signal search.3G measured the back protocol stack and get back under the idle pulley of GSM and just start timer T starting for the first time.Therefore, the condition whether terminal starts under idle pulley the search of 3G signal becomes: when timer T is overtime, and the signal strength signal intensity of judging GSM is lower than the experience threshold value of GSM signal.
Step S101: in search procedure, the signal strength signal intensity of the frequency of the 3G adjacent area of current search is measured to the 3G adjacent area.
Preferable, can keep a period of time the measurement of the signal strength signal intensity of frequency.Be the mode of carrying out twice measurement at regular intervals between adopting perhaps to the measurement of the signal strength signal intensity of frequency.
Step S102: whether the signal strength signal intensity of frequency of judging current this 3G adjacent area measure is greater than the handoff threshold of this frequency correspondence.If greater than the handoff threshold of this frequency correspondence then enter step S105, if smaller or equal to the handoff threshold of this frequency correspondence then enter step S103.Corresponding separately handoff threshold of each frequency wherein.
For the mode of twice measurement among the step S101, only twice measured value of the signal strength signal intensity of this frequency just entered step S105 during all greater than the handoff threshold of correspondence.
Step S103: judge whether current frequency is last frequency.If last frequency then enters step S112,, then enter step S104 if not last frequency.
Step S104: the signal strength signal intensity to next frequency is measured, and enters step S102 then.
Step S105: temporarily stop search, the system message of the 3G adjacent area of this frequency is read in beginning in advance.This part the 3G system message that reads under the 2G pattern can after the 3G pattern under directly use.
Step S106: judge whether the 3G adjacent area satisfies condition resident and registration.If satisfy condition then enter step S107, if do not satisfy condition then enter step S112.
Step S107: the double-mode single-standby terminal is carried out the gravity treatment/switching of 2G pattern to the 3G pattern.
Step S108: judge the 2G pattern to whether success of the gravity treatment/switching of 3G pattern, if success then enter step S109, if unsuccessful then enter step S111.
Step S109: the double-mode single-standby terminal is adjusted the handoff threshold of frequency correspondence, makes it reduce by a unit.
Reduce the value of handoff threshold under the situation of gravity treatment/handover success, the concrete numerical value of minimizing is not limited to 1 unit, and the handoff threshold of frequency is in a given interval all the time.
Step S110: adjust the reselection interval between twice search, make it reduce by a unit.
Reduce the value of reselection interval under the situation of gravity treatment/handover success, the concrete numerical value of minimizing is not limited to 1 unit, and the numerical value of reselection interval is in another given interval all the time.
Step S111: increase the handoff threshold of frequency correspondence, make it increase a unit.
Increase the value of handoff threshold under the situation of gravity treatment/handoff failure, the concrete numerical value of increase is not limited to 1 unit, and the handoff threshold of frequency is in a given interval all the time.
Step S112: adjust the reselection interval between twice search, make it increase by two units.
Under the situation of gravity treatment/handoff failure, does not satisfy under the situation of condition of resident and registration the 3G adjacent area, perhaps the signal strength signal intensity of all frequencies all is not more than under the situation of corresponding handoff threshold, reduce the value of reselection interval, the concrete numerical value that reduces is not limited to 1 unit, and the numerical value of reselection interval is in another given interval all the time.
The embodiment of dual-mode single-standby terminal device
Fig. 2 shows the principle of the embodiment of dual-mode single-standby terminal device of the present invention.See also Fig. 3, the dual-mode single-standby terminal device of present embodiment comprises trigger module 100, measurement module 101, comparison module 102, judge module 103, gravity treatment/handover module 104, adjusting module 105, timer 106.
For example, the trigger condition of trigger module 100 can be following two kinds of arbitrary or its combinations.First kind is the GSM signalc threshold of default: the current GSM of residing in sub-district behind the starting up of terminal is in the adjacent area that does not dispose 3G in idle pulley and the system message.Storing an experience threshold value (also being called threshold value) of overlapping the GSM signal of the startup 3G measurement of giving tacit consent to this moment in the double-mode single-standby terminal protocol stack begins to work.If the signal strength signal intensity of current GSM sub-district is less than a certain thresholding S
2GtAnd continue for some time the search that then starts 3G.
Second kind is the GSM signalc threshold that the user is provided with: the user starts the 3G search by layout setting when Serving cell GSM signal is reduced to which rank (such as the signal lattice number of corresponding interface display).Just when being lower than the thresholding of setting, the signal strength signal intensity of Serving cell starts the search of 3G sub-district.Here may appear at the search that always is not activated the 3G sub-district under the reasonable situation of 2G signal, this also is rational.Consider that from user perspective what the user was concerned about most is to enjoy the 3G service under the situation that the 3G service is arranged, rather than only be confined to current whether must standby under the 3G pattern.If current 2G signal is relatively good, do not trigger the search of 3G, suppose that this moment, the user wanted to use the distinctive business of 3G, so also can be by trigger search according to the Client-initiated business to the 3G signal.
Gravity treatment/handover module 104 connection judgment modules 103 draw under the result of condition who satisfies resident and registration at judge module 103 and to start, and carry out the gravity treatment/switching of 2G to the 3G pattern.
Adjusting module 105 connects gravity treatment/handover module 104, handoff threshold with this frequency correspondence under gravity treatment/handover module 104 operation case of successful reduces a unit, and the handoff threshold with the frequency correspondence under the unsuccessful situation of gravity treatment/handover module 104 operations increases a unit.No matter increase or reduce, the thresholding of each frequency must be adjusted in a default scope.
And the reselection interval of the double search 3G signal of setting for timer 106, if the gravity treatment of gravity treatment/handover module 104/handover operation success then reduces unit of reselection interval.If the gravity treatment of gravity treatment/handover module 104/handover operation failure, perhaps judge module 103 is judged and is not satisfied resident and registration condition, perhaps comparison module 102 signal strength signal intensity that draws all frequencies all is not more than corresponding handoff threshold, then increases at least two units of reselection interval.No matter increase still reduces, and the value of reselection interval must be adjusted in a default scope.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (20)
1. a 2G comprises to the method for 3G pattern gravity treatment/switching:
(1) the double-mode single-standby terminal works triggers the search to the 3G signal in the 2G pattern and do not dispose the 3G adjacent area under the situation that satisfies the condition that is provided with;
(2) carry out search procedure to the 3G adjacent area, in case the signal strength signal intensity that measures certain frequency is during greater than the handoff threshold of corresponding frequency, temporarily stop search, the system message of the 3G adjacent area of this frequency is read in beginning in advance, judge whether this 3G adjacent area satisfies condition resident and registration, wherein the corresponding separately handoff threshold of each frequency;
(3) if satisfy condition, then carry out of the gravity treatment/switching of 2G pattern to the 3G pattern, if do not satisfy condition, then continue follow-up frequency is measured, adjust the handoff threshold of this frequency correspondence according to the success or not of gravity treatment/switching.
2. 2G according to claim 1 is to the method for 3G pattern gravity treatment/switching, it is characterized in that, in the step (1), be lower than the search that triggers when 2G signal strength threshold and double startup arrive the reselection interval of setting to time interval of 3G signal search the 3G signal in the signal strength signal intensity of current service cell.
3. 2G according to claim 2 is characterized in that to the method for 3G pattern gravity treatment/switching in the step (1), the 2G signal strength threshold is a default.
4. 2G according to claim 2 is characterized in that to the method for 3G pattern gravity treatment/switching in the step (1), the 2G signal strength threshold is that the user is provided with.
5. 2G according to claim 1 is characterized in that to the method for 3G pattern gravity treatment/switching, in the step (3), if gravity treatment/handover success then reduces unit of handoff threshold of this frequency correspondence; If gravity treatment/switching is unsuccessful, then increase unit of handoff threshold of this frequency correspondence, the thresholding of each frequency is controlled in the default scope.
6. 2G according to claim 1 is characterized in that to the method for 3G pattern gravity treatment/switching, the time period that must continue to preset to the measurement of frequency signal strength signal intensity in the step (2).
7. 2G according to claim 1 is characterized in that to the method for 3G pattern gravity treatment/switching, the mode of carrying out twice measurement at regular intervals between the measurement employing to the frequency signal strength signal intensity in the step (2).
8. 2G according to claim 2 is characterized in that to the method for 3G pattern gravity treatment/switching the reselection interval in the step (1) is dynamically to adjust.
9. 2G according to claim 8 is characterized in that to the method for 3G pattern gravity treatment/switching, if gravity treatment/handover success then reduces by a unit with reselection interval; If gravity treatment/handoff failure or judge according to the system message of the 3G adjacent area of this frequency that reads in advance and not satisfy signal strength signal intensity resident and registration condition or all frequencies and all be not more than corresponding handoff threshold, then with at least two units of reselection interval increase, this reselection interval is controlled in the pre-set interval all the time.
10. it is characterized in that to the method for 3G pattern gravity treatment/switching that according to each described 2G in the claim 1～9 this 2G pattern comprises GSM/GPRS, CDMA, this 3G pattern comprises TD-SCDMA, CDMA2000, WCDMA.
11. a dual-mode single-standby terminal device comprises:
Trigger module triggers the search to the 3G signal under the situation that satisfies the condition that is provided with;
Measurement module connects this trigger module, in the search procedure to the 3G sub-district, measures the signal strength signal intensity of the frequency of these 3G sub-districts one by one;
Comparison module, connect this measurement module, the signal strength signal intensity handoff threshold corresponding with this frequency of the current frequency that measures made comparisons, if the signal strength signal intensity of current frequency is greater than handoff threshold then start next module, otherwise return this measurement module and handle next frequency, wherein the corresponding separately handoff threshold of each frequency;
Judge module, connect this comparison module, draw at this comparison module under the result of signal strength signal intensity greater than handoff threshold of current frequency and start, temporarily stop search, the system message of the 3G sub-district of this frequency is read in beginning in advance, judges whether this 3G sub-district satisfies condition resident and registration;
Gravity treatment/handover module connects this judge module, draws under the result who satisfies resident and registration condition at this judge module to start, and carries out the gravity treatment/switching of 2G to the 3G pattern;
The handoff threshold adjusting module is adjusted the handoff threshold of this frequency correspondence according to the success or not of gravity treatment/switching.
12. dual-mode single-standby terminal device according to claim 11, it is characterized in that, this device comprises a timer that connects this trigger module, this trigger module is lower than the search that triggers when 2G signal strength threshold and double startup arrive the reselection interval of setting to time interval of 3G signal search the 3G signal in the signal strength signal intensity of current service cell, and wherein reselection interval is set by timer.
13. dual-mode single-standby terminal device according to claim 12 is characterized in that, the 2G signal strength threshold in this trigger module is a default.
14., it is characterized in that the 2G signal strength threshold in this trigger module is that the user is provided with according to right 12 described dual-mode single-standby terminal devices.
15. dual-mode single-standby terminal device according to claim 11, it is characterized in that, this handoff threshold adjusting module reduces a unit with the handoff threshold of this frequency correspondence under this gravity treatment/handover module operation case of successful, the handoff threshold of operating under the unsuccessful situation this frequency correspondence at this gravity treatment/handover module increases a unit, and wherein the thresholding of each frequency is controlled in the default scope.
16., it is characterized in that this measurement module continues a default time period to the measurement of frequency signal strength signal intensity according to the described dual-mode single-standby terminal device of claim 11.
17. dual-mode single-standby terminal device according to claim 11 is characterized in that, the mode that this measurement module carries out twice measurement between the measurement of frequency signal strength signal intensity is adopted at regular intervals.
18. dual-mode single-standby terminal device according to claim 12 is characterized in that, reselection interval is dynamically adjusted by this timer.
19. dual-mode single-standby terminal device according to claim 18 is characterized in that, if the result of this gravity treatment/handover module is success, then controls the reselection interval value of this timer, makes it reduce by a unit; If the result of this gravity treatment/handover module is failure, perhaps the result of this judge module is that condition resident and registration is not satisfied in this 3G sub-district, perhaps the signal strength signal intensity of all frequencies all is not more than corresponding handoff threshold in this comparison module, then control the reselection interval value of this timer, make it increase at least two units, the reselection interval value of this timer is controlled in the pre-set interval all the time.
20., it is characterized in that this 2G pattern comprises GSM/GPRS, CDMA according to each described dual-mode single-standby terminal device in the claim 11～19, this 3G pattern comprises TD-SCDMA, CDMA2000, WCDMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100509650A CN101888680B (en) | 2009-05-11 | 2009-05-11 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100509650A CN101888680B (en) | 2009-05-11 | 2009-05-11 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
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| Publication Number | Publication Date |
|---|---|
| CN101888680A true CN101888680A (en) | 2010-11-17 |
| CN101888680B CN101888680B (en) | 2013-03-27 |
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| CN2009100509650A Active CN101888680B (en) | 2009-05-11 | 2009-05-11 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
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