CN105208611A - Method and device for reducing connection delay of circuit switched fallback redirection - Google Patents
Method and device for reducing connection delay of circuit switched fallback redirection Download PDFInfo
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- CN105208611A CN105208611A CN201510183818.6A CN201510183818A CN105208611A CN 105208611 A CN105208611 A CN 105208611A CN 201510183818 A CN201510183818 A CN 201510183818A CN 105208611 A CN105208611 A CN 105208611A
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Abstract
The invention relates to the technical field of communication, and particularly relates to a method and a device for reducing connection delay of circuit switched fallback redirection. The method comprises the steps of receiving indication information which is sent by an LTE (long term evolution) network and carries circuit switched fallback information, wherein the indication information comprises a location area code of an LTE cell; interpreting a redirection cell list according to the indication information; judging a redirection cell which is the most matched with the LTE cell according to the signal intensity and the location area code of cells in the redirection cell list; and redirecting the LTE cell to the most matched redirection cell. According to the invention, comparison is carried out on the location area codes of the redirection cells and the location area code of the LTE cell in fallback, and a redirection cell with the same location area code is selected preferentially to carry out fallback, so that a mobile terminal is prevented from carrying out location update as much as possible after fallback, the connection delay of circuit switched fallback redirection is reduced, and the connection failure rate caused by location update failure is reduced.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of circuit domain dropping that reduces and be redirected the method and device of connecting time delay.
Background technology
In prior art, specify in the voice protocol of mobile communication carrier that mobile phone is at LTE (LongTermEvolution) CSFB (CircuitSwitchedFallback, circuit domain dropping) when falling back to redirected community, if the community LAC (LocationAreaCode selected by mobile phone, Location Area Code) different from LTE community time, need advanced line position to upgrade, continue after waiting location updating to be over call again, a lot of local MTRF (MeanTimetoRepairFault not realizing agreement and specify in real net, mean time to repair) function, thus have subnetwork releasing network resources after location updating completes and cause CSFB to converse unsuccessfully, separately in real net in order to increase the success rate that mobile phone CSFB falls after rise, operator can all be added to redirected communities all for periphery LTE and face district, the community of same LAC and Different L AC will be caused so all to face in district at LTE, the redirected community that mobile phone acquiescence in CSFB process can select signal best is fallen after rise, when handset-selected redirected community LAC is different from LTE community LAC, mobile phone needs the process of an increase location updating, so just increase whole talkthrough time delay.
Summary of the invention
The object of the invention is to propose a kind of circuit domain dropping that reduces and be redirected the method and device of connecting time delay, the connection time delay that circuit domain dropping is redirected can be reduced, reduce the connection mortality because location updating unsuccessfully causes.
For reaching this object, the present invention by the following technical solutions:
Reduce circuit domain dropping and be redirected the method connecting time delay, comprising:
The indication information carrying circuit domain dropping information that step 110, reception LTE network issue, described indication information comprises the Location Area Code of LTE community;
Step 120, to read according to described indication information solution and be redirected cell list;
Step 130, to judge and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Step 140, be redirected to described in the redirected community of mating most.
Wherein, described step 130 comprises:
Whether step 131, the signal strength signal intensity of i-th community judged in described redirected cell list are greater than default threshold value, and wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Step 132, if so, then judge that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
Step 133, if so, then described i-th community is write the first cell list to be selected;
Step 134, repeat step 131 to step 133 for the i-th+1 community;
Step 135, judge whether n the community of being redirected in cell list all carried out and the comparing of described threshold value;
Step 136, if so, then judge that whether described first cell list to be selected is empty;
Step 137, if not empty, then to be sorted according to signal strength signal intensity in the community in described first cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
Wherein, also comprise after described step 131:
If the signal strength signal intensity of n the community that step 1321 is redirected in cell list is all less than described default threshold value, sorted according to signal strength signal intensity in a described n community, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
Wherein, also comprise after described step 132:
If the Location Area Code of described i-th community of step 1331 is not identical with the Location Area Code of described LTE community, then described i-th community is write the second cell list to be selected.
Wherein, also comprise after described step 136:
If described first cell list to be selected of step 1371 is empty, then sorted according to signal strength signal intensity in the community in described second cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
Wherein, also comprise before described step 110:
Step 100, mobile terminal are initiated signaling and are connected initiating speech conversation under LTE network.
Reduce circuit domain dropping and be redirected the device connecting time delay, comprising:
Receiver module, for receiving the indication information carrying circuit domain dropping information that LTE network issues, described indication information comprises the Location Area Code of LTE community;
Separating read through model, being redirected cell list for reading according to described indication information solution;
Matching module, for judging and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Redirection module, for the redirected community of mating most described in being redirected to.
Wherein, described matching module comprises:
Signal strength signal intensity judge module, for judging whether the signal strength signal intensity of i-th community in described redirected cell list is greater than default threshold value, wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Location Area Code judge module, when the signal strength signal intensity for i-th community in described redirected cell list is greater than default threshold value, judges that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
First writing module, time identical with the Location Area Code of described LTE community for the Location Area Code in described i-th community, writes the first cell list to be selected by described i-th community;
Addition module, for judging for the i-th+1 community;
Loop module, whether n the community for judging in redirected cell list all carried out and the comparing of described threshold value;
First judge module, for when loop module work completes, judges whether described first cell list to be selected is empty;
First matching module, for if not empty, then sorts according to signal strength signal intensity to the community in described first cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
Wherein, also comprise:
Second matching module, if be all less than described default threshold value for the signal strength signal intensity being redirected n community in cell list, sorts according to signal strength signal intensity to a described n community, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell;
Second writing module, if not identical with the Location Area Code of described LTE community for the Location Area Code of described i-th community, then writes the second cell list to be selected by described i-th community.
3rd matching module, if be empty for described first cell list to be selected, then sorts according to signal strength signal intensity to the community in described second cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
Wherein, also comprise: mobile terminal;
Described mobile terminal, connects initiating speech conversation for initiating signaling under LTE network.
Beneficial effect of the present invention is: a kind of circuit domain dropping that reduces is redirected the method and device of connecting time delay, the method comprises: receive the indication information carrying circuit domain dropping information that LTE network issues, described indication information comprises the Location Area Code of LTE community; Read according to described indication information solution and be redirected cell list; Judge and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code; The redirected community of mating most described in being redirected to, when the present invention is by falling after rise, the Location Area Code of counterweight directional cell and the Location Area Code of LTE community contrast, the redirected community of prioritizing selection same position district code is fallen after rise, avoid mobile terminal to fall laggard line position after rise to upgrade as far as possible, reduce the connection time delay that circuit domain dropping is redirected, reduce the connection mortality because location updating unsuccessfully causes.
Accompanying drawing explanation
Fig. 1 is that the reduction circuit domain dropping that the embodiment of the present invention one provides is redirected the method flow diagram connecting time delay.
Fig. 2 is the method flow diagram judging the redirected community of mating most with described LTE community that the embodiment of the present invention one provides.
Fig. 3 is the structure chart that reduction circuit domain dropping that the embodiment of the present invention two provides is redirected the device connecting time delay.
Fig. 4 is the structure chart of the matching module that the embodiment of the present invention two provides.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with Fig. 1-Fig. 4.
Embodiment one
Fig. 1 is that the reduction circuit domain dropping that the embodiment of the present invention one provides is redirected the method flow diagram connecting time delay.
Reduce circuit domain dropping and be redirected the method connecting time delay, comprising:
The indication information carrying circuit domain dropping information that step 110, reception LTE network issue, described indication information comprises the Location Area Code of LTE community;
Step 120, to read according to described indication information solution and be redirected cell list;
Step 130, to judge and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Step 140, be redirected to described in the redirected community of mating most.
In the present embodiment, during by falling after rise, the Location Area Code of counterweight directional cell and the Location Area Code of LTE community contrast, the redirected community of prioritizing selection same position district code is fallen after rise, avoid mobile terminal to fall laggard line position after rise to upgrade as far as possible, reduce the connection time delay that circuit domain dropping is redirected, reduce the connection mortality because location updating unsuccessfully causes.
In the present embodiment, described indication information is RRC (RadioResourceControl, radio resource control) ConnectionRelease information.
As shown in Figure 2, in the present embodiment, described step 130 comprises:
Whether step 131, the signal strength signal intensity of i-th community judged in described redirected cell list are greater than default threshold value, and wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Step 132, if so, then judge that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
Step 133, if so, then described i-th community is write the first cell list to be selected;
Step 134, repeat step 131 to step 133 for the i-th+1 community;
Step 135, judge whether n the community of being redirected in cell list all carried out and the comparing of described threshold value;
Step 136, if so, then judge that whether described first cell list to be selected is empty;
Step 137, if not empty, then to be sorted according to signal strength signal intensity in the community in described first cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
In the present embodiment, also comprise after described step 131:
If the signal strength signal intensity of n the community that step 1321 is redirected in cell list is all less than described default threshold value, sorted according to signal strength signal intensity in a described n community, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
In the present embodiment, also comprise after described step 132:
If the Location Area Code of described i-th community of step 1331 is not identical with the Location Area Code of described LTE community, then described i-th community is write the second cell list to be selected.
In the present embodiment, also comprise after described step 136:
If described first cell list to be selected of step 1371 is empty, then sorted according to signal strength signal intensity in the community in described second cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
In the present embodiment, also comprise before described step 110:
Step 100, mobile terminal are initiated signaling and are connected initiating speech conversation under LTE network.
Embodiment two
As shown in Figure 3, a kind of circuit domain dropping that reduces is redirected the device connecting time delay, comprising:
Receiver module, for receiving the indication information carrying circuit domain dropping information that LTE network issues, described indication information comprises the Location Area Code of LTE community;
Separating read through model, being redirected cell list for reading according to described indication information solution;
Matching module, for judging and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Redirection module, for the redirected community of mating most described in being redirected to.
As shown in Figure 4, in the present embodiment, described matching module comprises:
Signal strength signal intensity judge module, for judging whether the signal strength signal intensity of i-th community in described redirected cell list is greater than default threshold value, wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Location Area Code judge module, when the signal strength signal intensity for i-th community in described redirected cell list is greater than default threshold value, judges that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
First writing module, time identical with the Location Area Code of described LTE community for the Location Area Code in described i-th community, writes the first cell list to be selected by described i-th community;
Addition module, for judging for the i-th+1 community;
Loop module, whether n the community for judging in redirected cell list all carried out and the comparing of described threshold value;
First judge module, for when loop module work completes, judges whether described first cell list to be selected is empty;
First matching module, for if not empty, then sorts according to signal strength signal intensity to the community in described first cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
In the present embodiment, also comprise:
Second matching module, if be all less than described default threshold value for the signal strength signal intensity being redirected n community in cell list, sorts according to signal strength signal intensity to a described n community, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell;
Second writing module, if not identical with the Location Area Code of described LTE community for the Location Area Code of described i-th community, then writes the second cell list to be selected by described i-th community.
3rd matching module, if be empty for described first cell list to be selected, then sorts according to signal strength signal intensity to the community in described second cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
In the present embodiment, also comprise: mobile terminal;
Described mobile terminal, connects initiating speech conversation for initiating signaling under LTE network.
The foregoing is only the specific embodiment of the present invention, these describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific implementation method of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. reduce circuit domain dropping and be redirected the method connecting time delay, it is characterized in that, comprising:
The indication information carrying circuit domain dropping information that step 110, reception LTE network issue, described indication information comprises the Location Area Code of LTE community;
Step 120, to read according to described indication information solution and be redirected cell list;
Step 130, to judge and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Step 140, be redirected to described in the redirected community of mating most.
2. a kind of circuit domain dropping that reduces according to claim 1 is redirected the method connecting time delay, and it is characterized in that, described step 130 comprises:
Whether step 131, the signal strength signal intensity of i-th community judged in described redirected cell list are greater than default threshold value, and wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Step 132, if so, then judge that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
Step 133, if so, then described i-th community is write the first cell list to be selected;
Step 134, repeat step 131 to step 133 for the i-th+1 community;
Step 135, judge whether n the community of being redirected in cell list all carried out and the comparing of described threshold value;
Step 136, if so, then judge that whether described first cell list to be selected is empty;
Step 137, if not empty, then to be sorted according to signal strength signal intensity in the community in described first cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
3. a kind of circuit domain dropping that reduces according to claim 2 is redirected the method connecting time delay, it is characterized in that, also comprises after described step 131:
If the signal strength signal intensity of n the community that step 1321 is redirected in cell list is all less than described default threshold value, sorted according to signal strength signal intensity in a described n community, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
4. a kind of circuit domain dropping that reduces according to claim 2 is redirected the method connecting time delay, it is characterized in that, also comprises after described step 132:
If the Location Area Code of described i-th community of step 1331 is not identical with the Location Area Code of described LTE community, then described i-th community is write the second cell list to be selected.
5. a kind of circuit domain dropping that reduces according to claim 4 is redirected the method connecting time delay, it is characterized in that, also comprises after described step 136:
If described first cell list to be selected of step 1371 is empty, then sorted according to signal strength signal intensity in the community in described second cell list to be selected, and select the strongest community of signal strength signal intensity to attach most importance to directional cell.
6. a kind of circuit domain dropping that reduces according to claim 1 is redirected the method connecting time delay, it is characterized in that, also comprises before described step 110:
Step 100, mobile terminal are initiated signaling and are connected initiating speech conversation under LTE network.
7. reduce circuit domain dropping and be redirected the device connecting time delay, it is characterized in that, comprising:
Receiver module, for receiving the indication information carrying circuit domain dropping information that LTE network issues, described indication information comprises the Location Area Code of LTE community;
Separating read through model, being redirected cell list for reading according to described indication information solution;
Matching module, for judging and the redirected community that described LTE community is mated most according to the signal strength signal intensity of community in described redirected cell list and Location Area Code;
Redirection module, for the redirected community of mating most described in being redirected to.
8. a kind of circuit domain dropping that reduces according to claim 7 is redirected the device connecting time delay, and it is characterized in that, described matching module comprises:
Signal strength signal intensity judge module, for judging whether the signal strength signal intensity of i-th community in described redirected cell list is greater than default threshold value, wherein, i is that n is the community number in described redirected cell list from 1 to n progressive whole number successively;
Location Area Code judge module, when the signal strength signal intensity for i-th community in described redirected cell list is greater than default threshold value, judges that whether the Location Area Code of described i-th community is identical with the Location Area Code of described LTE community;
First writing module, time identical with the Location Area Code of described LTE community for the Location Area Code in described i-th community, writes the first cell list to be selected by described i-th community;
Addition module, for judging for the i-th+1 community;
Loop module, whether n the community for judging in redirected cell list all carried out and the comparing of described threshold value;
First judge module, for when loop module work completes, judges whether described first cell list to be selected is empty;
First matching module, for if not empty, then sorts according to signal strength signal intensity to the community in described first cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
9. a kind of circuit domain dropping that reduces according to claim 7 is redirected the device connecting time delay, it is characterized in that, also comprises:
Second matching module, if be all less than described default threshold value for the signal strength signal intensity being redirected n community in cell list, sorts according to signal strength signal intensity to a described n community, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell;
Second writing module, if not identical with the Location Area Code of described LTE community for the Location Area Code of described i-th community, then writes the second cell list to be selected by described i-th community.
3rd matching module, if be empty for described first cell list to be selected, then sorts according to signal strength signal intensity to the community in described second cell list to be selected, and selects the strongest community of signal strength signal intensity to attach most importance to directional cell.
10. a kind of circuit domain dropping that reduces according to claim 7 is redirected the device connecting time delay, it is characterized in that, also comprises: mobile terminal;
Described mobile terminal, connects initiating speech conversation for initiating signaling under LTE network.
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| CN106255157A (en) * | 2016-04-22 | 2016-12-21 | 重庆邮电大学 | A kind of optimize the method for redirection process between multimode user terminal pattern |
| CN106507390A (en) * | 2016-10-24 | 2017-03-15 | 中国联合网络通信集团有限公司 | A kind of method and device of optimizing cells |
| CN107040967A (en) * | 2017-03-20 | 2017-08-11 | 广东欧珀移动通信有限公司 | Circuit domain dropping abnormality eliminating method, device and user equipment |
| WO2018014461A1 (en) * | 2016-07-19 | 2018-01-25 | 中兴通讯股份有限公司 | Circuit switched fallback csfb redirection method, apparatus, terminal and system |
| CN107959952A (en) * | 2017-12-21 | 2018-04-24 | 维沃移动通信有限公司 | A kind of detection method and terminal of different system cell |
| WO2018126804A1 (en) * | 2017-01-05 | 2018-07-12 | 广东欧珀移动通信有限公司 | Method and device for registering to cell |
| CN108668327A (en) * | 2018-04-23 | 2018-10-16 | 北京小米移动软件有限公司 | The communication means and device of mobile terminal |
| CN110337128A (en) * | 2019-07-25 | 2019-10-15 | 中国联合网络通信集团有限公司 | Cell falling-back method and system |
| CN110392391A (en) * | 2019-07-23 | 2019-10-29 | 中国联合网络通信集团有限公司 | Cell falling-back method and terminal device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106255157A (en) * | 2016-04-22 | 2016-12-21 | 重庆邮电大学 | A kind of optimize the method for redirection process between multimode user terminal pattern |
| CN106255157B (en) * | 2016-04-22 | 2019-06-28 | 重庆邮电大学 | A method of redirection process between optimization multimode user terminal mode |
| WO2018014461A1 (en) * | 2016-07-19 | 2018-01-25 | 中兴通讯股份有限公司 | Circuit switched fallback csfb redirection method, apparatus, terminal and system |
| CN106507390B (en) * | 2016-10-24 | 2019-07-09 | 中国联合网络通信集团有限公司 | A kind of method and device of optimizing cells |
| CN106507390A (en) * | 2016-10-24 | 2017-03-15 | 中国联合网络通信集团有限公司 | A kind of method and device of optimizing cells |
| WO2018126804A1 (en) * | 2017-01-05 | 2018-07-12 | 广东欧珀移动通信有限公司 | Method and device for registering to cell |
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| WO2018171153A1 (en) * | 2017-03-20 | 2018-09-27 | 广东欧珀移动通信有限公司 | Method and device for handling anomaly occurring during circuit switched fallback operation, and user equipment |
| CN107040967A (en) * | 2017-03-20 | 2017-08-11 | 广东欧珀移动通信有限公司 | Circuit domain dropping abnormality eliminating method, device and user equipment |
| CN107959952A (en) * | 2017-12-21 | 2018-04-24 | 维沃移动通信有限公司 | A kind of detection method and terminal of different system cell |
| CN108668327A (en) * | 2018-04-23 | 2018-10-16 | 北京小米移动软件有限公司 | The communication means and device of mobile terminal |
| CN110392391A (en) * | 2019-07-23 | 2019-10-29 | 中国联合网络通信集团有限公司 | Cell falling-back method and terminal device |
| CN110337128A (en) * | 2019-07-25 | 2019-10-15 | 中国联合网络通信集团有限公司 | Cell falling-back method and system |
| CN110337128B (en) * | 2019-07-25 | 2021-07-27 | 中国联合网络通信集团有限公司 | Cell fallback method and system |
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| Publication number | Publication date |
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| CN105208611B (en) | 2018-03-09 |
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